COOKER HOOD, AND ELECTROSTATIC FILTER GAUZE AND ELECTRODE PLATE THEREOF

Description

BACKGROUND

Technical Field

[0001] The present application relates to the technical field of cooker hoods, and in particular, to a cooker hood, and an electrostatic filter gauze.

Related Art

[0002] Electrostatic filter gauzes have been increasingly applied to the field of household appliances such as air cleaners and cooker hoods due to the advantage of high adsorption efficiency.

[0003] An existing electrostatic filter gauze generally includes an ionization zone and an adsorption zone. The adsorption zone usually includes a positive electrode plate and a negative electrode plate. The ionization zone usually includes ionization wires or a saw-toothed ionization unit and a grounding electrode plate. The electrostatic filter gauze forms a high-voltage electric field by means of point discharge, so that fume particles passing through the ionization zone are electrified and then adsorbed by the corresponding electrified electrode plates in the adsorption zone.

[0004] After a cooker hood using the electrostatic filter gauze is used for a period of time, a large amount of grease is usually adsorbed on the surface of the electrode plate, and then slides along the surface of the electrode plate under the effect of gravity. If an internal structure of the cooker hood is not designed to be tight enough, oil usually drips down. As a result, oil drops directly fall on a cooking bench of the kitchen, thus severely affecting users' using experience.

[0005] US 2010/0089240 A1 discloses a range hood with electrostatically assisted air flow and filtering. The Electrostatic Fluid Accelerator (EFA) may include at least two electrodes. One of the electrodes is a corona electrode and the other is a collecting electrode. According to one embodiment, the EFA is tilted to prevent heavy accumulation of water.

[0006] US 4,854,949 A discloses an apparatus for cooking food including a ventless exhaust system whereby a fan pulls heated air through a filter system which includes an aluminum grease filter, an electrostatic precipitator, a flame arrester and a charcoal filter. According to one embodiment, the aluminum filter 12 can be mounted at an angle between about 5 to 30 degrees. Moisture condensed by the filter drains through a channel to be collected in a container.

[0007] US 2008/0121224 A1 discloses an ultra-violet recirculating exhaust hood system. The filter system may include a grease filter, an electrostatic precipitator and a charcoal filter. These filters are preferably positioned at an angle between about 5 and 45 degrees to the horizontal, sloping upward.

I. SUMMARY

[0008] The technical problem resolved by embodiments of the present application is how to design a structure of an electrostatic filter gauze reasonably, so as to prevent liquid adsorbates adsorbed on an electrode plate from dripping around and thus avoid affecting users' using experience.

[0009] In order to resolve the foregoing technical problem, an embodiment of the present application provides an electrostatic filter gauze applicable to a cooker hood, where the electrostatic filter gauze includes an electrode plate. A collector side of the electrode plate has a guiding structure to guide liquid adsorbates on the collector side to a specified region, where liquid adsorbates on the electrode plate converge towards the collector side under the effect of gravity. The guiding structure has a trapezoidal shape.

[0010] Optionally, the guiding structure has at least one tilted edge that guides the liquid adsorbates to the specified region.

[0011] Optionally, the guiding structure has a connecting edge, a first tilted edge and a second tilted edge, where a width of the connecting edge is determined according to the specified region, the first tilted edge and the second tilted edge are located on two sides of the connecting edge and make obtuse angles with the connecting edge, and the liquid adsorbates are guided to the connecting edge through the first tilted edge or the second tilted edge.

[0012] Optionally, degrees of the obtuse angles that the first tilted edge and the second tilted edge make with the connecting edge are the same.

[0013] Optionally, the degrees of the obtuse angles that the first tilted edge and the second tilted edge make with the connecting edge are determined according to an electrical parameter of the electrode plate and the width of the connecting edge.

[0014] Optionally, the guiding structure has a first tilted edge and a second tilted edge, the first tilted edge is connected to the second tilted edge, and an angle is formed between the first tilted edge and the second tilted edge.

[0015] Optionally, the tilted edge is provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate, so as to form a groove.

[0016] Optionally, the electrode plate includes an adsorption zone electrode plate and/or an ionization zone electrode plate.

[0017] Optionally, the adsorption zone electrode plate and the ionization zone electrode plate have different heights in the converging direction on the electrode plate.

[0018] Optionally, the electrostatic filter gauze further includes: a fixing member used for fixing an interval two adjacent electrode plates.

[0019] Optionally, the electrostatic filter gauze further includes a separation net disposed at an air inlet of the electrostatic filter gauze.

[0020] An embodiment of the present application further provides a cooker hood. The cooker hood includes a body, and further includes: the electrostatic filter gauze described above. The electrostatic filter gauze is disposed in the body of the cooker hood, and the air inlet of the electrostatic filter gauze is in communication with an air inlet of the body.

[0021] Optionally, the cooker hood further includes a collecting portion disposed in the specified region, and the collecting portion is used for bearing adsorbates falling from the electrode plate.

[0022] Compared with the prior art, the technical solutions of the present application have the following advantages:
An embodiment of the present application provides an electrostatic filter gauze applicable to a cooker hood. The electrostatic filter gauze includes an electrode plate. A collector side of the electrode plate has a guiding structure to guide liquid adsorbates on the collector side to a specified region. Liquid adsorbates on the electrode plate converge towards the collector side under the effect of gravity. Compared with a rectangular structure employed by an electrode plate of an existing electrostatic filter gauze, the solution of this embodiment of the present application uses the guiding structure to guide the liquid adsorbates gathered on the collector side of the electrode plate to the specified region, thereby effectively resolving the problem of uncontrollable dripping of the liquid adsorbates, making sure that the liquid adsorbates adsorbed on the electrode plate are guided to the specified region as much as possible, and reducing or even avoiding accidental dripping of the liquid adsorbates.

[0023] Further, the guiding structure has at least one tilted edge that guides the liquid adsorbates to the specified region. The tilted edge forms a part of a convergence path of the liquid adsorbates, thereby smoothly guiding the liquid adsorbates on the collector side to the specified region.

[0024] Further, the guiding structure has a trapezoidal shape, so as to form at least one tilted edge on the collector side.

[0025] Further, the guiding structure has a connecting edge, a first tilted edge and a second tilted edge. The width of the connecting edge is determined according to the specified region. The first tilted edge and the second tilted edge are located on two sides of the connecting edge and make obtuse angles with the connecting edge. The liquid adsorbates are guided to the connecting edge through the first tilted edge or the second tilted edge. An effective area of the electrode plate can be increased as much as possible by using the structural configuration of the solution of this embodiment of the present application, so that the electrode plate can adsorb as many liquid adsorbates as possible. Further, the adsorbed liquid adsorbates can be guided to the connecting edge through the first tilted edge or the second tilted edge. Because the width of the connecting edge is determined according to the specified region, the liquid adsorbates guided to the connecting edge can naturally drip on the specified region and do not drip on regions out of the specified region.

[0026] Further, degrees of the obtuse angles that the first tilted edge and the second tilted edge make with the connecting edge are the same, so as to reduce the complexity of a manufacturing process while making the overall appearance of the electrostatic filter gauze more beautiful.

[0027] Further, the degrees of the obtuse angles that the first tilted edge and the second tilted edge make with the connecting edge are determined according to an electrical parameter of the electrode plate and the width of the connecting edge, so as to guide the liquid adsorbates adsorbed on the electrode plate to the specified region quickly and smoothly while ensuring the adsorption capacity of the electrode plate.

[0028] Further, the guiding structure has a first tilted edge and a second tilted edge, the first tilted edge is connected to the second tilted edge, and an angle is formed between the first tilted edge and the second tilted edge, so that the liquid adsorbates adsorbed on the electrode plate are guided to the specified region more quickly through the tilted edge having a greater slope. Further, when the width of the electrode plate is relatively small, the structural configuration of this solution can also be used, so as to ensure that all the liquid adsorbates adsorbed on the electrode plate can be guided to the specified region effectively.

[0029] Further, the tilted edge is provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate, so as to form a groove. As such, accidental dripping of the liquid adsorbates during convergence towards the specified region can be better prevented.

[0030] Further, the electrode plate includes an adsorption zone electrode plate and/or an ionization zone electrode plate, so that liquid adsorbates passing through the ionization zone carry a positive charge or a negative charge by means of point discharge.

[0031] Further, the adsorption zone electrode plate and the ionization zone electrode plate have different heights in the converging direction on the electrode plate, so as to prevent end portions of the electrode plates from being excessively close to each other to cause sparking.

[0032] Further, the electrostatic filter gauze further includes a fixing member used for fixing an interval two adjacent electrode plates, so as to avoid damages caused by collision between electrode plates which become loose during installation, transportation, and using processes.

[0033] Further, the electrostatic filter gauze further includes a separation net disposed at an air inlet of the electrostatic filter gauze, so as to prevent the electrostatic filter gauze from being touched by a user accidentally.

[0034] An embodiment of the present application further provides a cooker hood. The cooker hood includes a body, and further includes the electrostatic filter gauze described above. The electrostatic filter gauze is disposed in the body of the cooker hood, and the air inlet of the electrostatic filter gauze is in communication with an air inlet of the body. The cooker hood in the solution of this embodiment of the present application can effectively resolve the problem of uncontrollable dripping of grease from the air inlet of the cooker hood, thereby greatly optimizing user experience.

[0035] Further, the cooker hood further includes a collecting portion disposed in the specified region, and the collecting portion is used for bearing adsorbates falling from the electrode plate. A person skilled in the art understands that through cooperation between the collecting portion and the electrostatic filter gauze, all liquid adsorbates adsorbed on the electrode plate can be collectively guided into the collecting portion, making sure that all grease dripping from the cooker hood (especially the electrostatic filter gauze) can be effectively received by the collecting portion.

[0036] Further, the guiding structure has at least one tilted edge that guides the liquid adsorbates to the specified region, so that a convergence path of the liquid adsorbates is limited by the tilted edge, thereby guiding the liquid adsorbates on the collector side to the specified region smoothly.

[0037] Further, the guiding structure has a connecting edge, a first tilted edge and a second tilted edge. The width of the connecting edge is determined according to the specified region. The first tilted edge and the second tilted edge are located on two sides of the connecting edge and make obtuse angles with the connecting edge. The liquid adsorbates are guided to the connecting edge through the first tilted edge or the second tilted edge. An effective area of the electrode plate can be increased as much as possible by using the structural configuration of the solution of this embodiment of the present application, so that the electrode plate can adsorb as many liquid adsorbates as possible. Further, the adsorbed liquid adsorbates can be guided to the connecting edge through the first tilted edge or the second tilted edge. Because the width of the connecting edge is determined according to the specified region, the liquid adsorbates guided to the connecting edge can naturally drip on the specified region and do not drip on regions out of the specified region.

[0038] Further, the guiding structure has a first tilted edge and a second tilted edge, the first tilted edge is connected to the second tilted edge, and an angle is formed between the first tilted edge and the second tilted edge, so that the liquid adsorbates adsorbed on the electrode plate are guided to the specified region more quickly through the tilted edge having a greater slope. Further, when the width of the electrode plate is relatively small, the structural configuration of this solution can also be used, so as to ensure that all the liquid adsorbates adsorbed on the electrode plate can be guided to the specified region effectively.

[0039] Further, the tilted edge is provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate, so as to form a groove. As such, accidental dripping of the liquid adsorbates during convergence towards the specified region can be better prevented.

[0040] Further, the guiding structure has a trapezoidal shape, so as to form at least one tilted edge on the collector side.

II. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] 

FIG. 1 is a three-dimensional schematic structural diagram of an electrostatic filter gauze applicable to a cooker hood according to a first embodiment of the present application;

FIG. 2 is a schematic diagram of FIG. 1 along y-direction;

FIG. 3 is a cross sectional schematic structural diagram of FIG. 2 along B-B direction;

FIG. 4 is a schematic diagram of an electrode plate used by the electrostatic filter gauze in the first embodiment of the present application;

FIG. 5 is a schematic diagram of another electrode plate used by the electrostatic filter gauze in the first embodiment of the present application;

FIG. 6 is a schematic diagram of FIG. 1 along z-direction;

FIG. 7 is a cross sectional schematic structural diagram of FIG. 6 along C-C direction;

FIG. 8 is a schematic diagram of FIG. 1 along -z direction;

FIG. 9 is a schematic diagram of FIG. 1 along -x direction; and

FIG. 10 is a cross sectional schematic structural diagram of FIG. 9 along A-A direction;

[0042] In the drawings: 1 represents an electrostatic filter gauze; 2 represents a housing; 21 represents a screw; 3 represents an electrode plate; 4 represents a fixing member; 31 represents a collector side; 5 represents a guiding structure; 51 represents a connecting edge; 52 represents a first tilted edge; 53 represents a second tilted edge; α represents an obtuse angle between the first tilted edge and the connecting edge; β represents an obtuse angle between the second tilted edge and the connecting edge; θ represents an obtuse angle between the first tilted edge and the second tilted edge; 31 represents an adsorption zone electrode plate; 32 represents an ionization zone electrode plate; 6 represents a separation net; 7 represents a side cover.

III. DETAILED DESCRIPTION

[0043] As described in the related art, the design of an existing electrostatic filter gauze is defective. Therefore, when a cooker hood using the electrostatic filter gauze is used, grease easily falls from the cooker hood (especially the electrostatic filter gauze) uncontrollably. The dripping grease may directly fall on a cooking bench of the kitchen, thus severely affecting users' use experience.

[0044] In order to resolve the foregoing technical problem, the present application provides an electrostatic filter gauze applicable to a cooker hood. The electrostatic filter gauze includes an electrode plate. A collector side of the electrode plate has a guiding structure to guide liquid adsorbates on the collector side to a specified region. Liquid adsorbates on the electrode plate converge towards the collector side under the effect of gravity. Compared with a rectangular structure employed by an electrode plate of an existing electrostatic filter gauze, the solution of this embodiment of the present application uses the guiding structure to guide the liquid adsorbates gathered on the collector side of the electrode plate to the specified region, thereby effectively resolving the problem of uncontrollable dripping of the liquid adsorbates, making sure that the liquid adsorbates adsorbed on the electrode plate are guided to the specified region as much as possible, and reducing or even avoiding accidental dripping of the liquid adsorbates.

[0045] To make the foregoing objectives, features and advantages of the present invention easier to understand, specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0046] FIG. 1 is a three-dimensional schematic structural diagram of an electrostatic filter gauze 1 applicable to a cooker hood according to a first embodiment of the present application. FIG. 2 to FIG. 8 are schematic diagrams from different perspectives and cross sectional schematic structural diagrams of the electrostatic filter gauze 1 according to the first embodiment.

[0047] Specifically, referring to FIG. 1 and FIG. 9, the electrostatic filter gauze 1 can include housings 2. The housings 2 are disposed at a front end and a rear end of the electrostatic filter gauze 1 respectively.

[0048] Further, referring to FIG. 1, FIG. 2 and FIG. 10, the housing 2 disposed at the rear end of the electrostatic filter gauze 1 can be provided with screws 21, so as to be connected to different levels (for example, connected to various suitable voltages or grounded). The housing 2 disposed at the front end of the electrostatic filter gauze 1 can be provided with a handle, so as to be held by a user easily.

[0049] Further, referring to FIG. 1, FIG. 8 and FIG. 10, the electrostatic filter gauze 1 can further includes multiple electrode plates 3. The multiple electrode plates 3 can be disposed at equal intervals in the electrostatic filter gauze 1. Alternatively, the electrode plate 3 can also be disposed at different intervals in the electrostatic filter gauze 1.

[0050] Further, referring to FIG. 1 and FIG. 8, the electrostatic filter gauze 1 can further include a fixing member 4 for fixing an interval between two adjacent electrode plates 3, so as to avoid damages caused by collision between electrode plates 3 which become loose during installation, transportation, and using processes. Preferably, the fixing member 4 can further be used for limiting an interval between two adjacent electrode plates 3.

[0051] Further, referring to FIG. 1, FIG. 3 and FIG. 7, a collector side 31 of the electrode plate 3 has a guiding structure 5 to guide liquid adsorbates on the collector side 31 to a specified region, where liquid adsorbates on the electrode plate 3 converge towards the collector side 31 under the effect of gravity.

[0052] A person skilled in the art understands that the solution of this embodiment of the present application uses the guiding structure 5 to guide the liquid adsorbates gathered on the collector side 31 of the electrode plate 3 to the specified region, thereby effectively resolving the problem of uncontrollable dripping of the liquid adsorbates, making sure that the liquid adsorbates adsorbed on the electrode plate 3 are guided to the specified region as much as possible, and reducing or even avoiding accidental dripping of the liquid adsorbates.

[0053] Further, the guiding structure 5 has at least one tilted edge that guides the liquid adsorbates to the specified region. The tilted edge forms a part of a convergence path of the liquid adsorbates, thereby smoothly guiding the liquid adsorbates on the collector side 31 to the specified region.

[0054] According to the invention, the guiding structure 5 has a trapezoidal shape, so as to form at least one tilted edge on the collector side.

[0055] As another non-restrictive embodiment, the guiding structure 5 can have a connecting edge 51, a first tilted edge 52 and a second tilted edge 53. The width of the connecting edge 51 can be determined according to the specified region. The first tilted edge 52 and the second tilted edge 53 are located on two sides of the connecting edge 51 and make obtuse angles with the connecting edge 51. The liquid adsorbates are guided to the connecting edge 51 through the first tilted edge 52 or the second tilted edge 53.

[0056] Preferably, an extending direction of the connecting edge 51 can be perpendicular to a flowing direction of an air flow that flows in from an air inlet of the electrostatic filter gauze 1.

[0057] Alternatively, the connecting edge 51 can also be an oblique edge having a slope smaller than slopes of the first tilted edge 52 and the second tilted edge 53.

[0058] Alternatively, the connecting edge 51 can also be arc-shaped or curve-shaped.

[0059] A person skilled in the art understands that the structural configuration of the connecting edge 51 is used for temporarily storing liquid adsorbates guided from the first tilted edge 51 and the second tilted edge 53, so that the liquid adsorbates can naturally drip on the specified region when accumulated to a certain level.

[0060] Further, an effective area of the electrode plate 3 can be increased as much as possible by using the structural configuration of the solution of the present application, so that the electrode plate 3 can adsorb as many liquid adsorbates as possible. Further, the adsorbed liquid adsorbates can be guided to the connecting edge 51 through the first tilted edge 52 or the second tilted edge 53. Because the width of the connecting edge 51 is determined according to the specified region, the liquid adsorbates guided to the connecting edge 51 can naturally drip on the specified region and do not drip on regions out of the specified region.

[0061] Further, degrees of the obtuse angles that the first tilted edge 52 and the second tilted edge 53 make with the connecting edge 51 can be the same, so as to reduce the complexity of a manufacturing process and installation on one hand, and make the overall appearance of the electrostatic filter gauze more beautiful on the other hand. For example, referring to FIG. 3, the first tilted edge 52 and the connecting edge 51 form an obtuse angle α; the second tilted edge 53 and the connecting edge 51 form an obtuse angle β; the obtuse angle α and the obtuse angle β may be equal in size.

[0062] Further, the degrees of the obtuse angles that the first tilted edge 52 and the second tilted edge 53 make with the connecting edge 51 can be determined according to an electrical parameter of the electrode plate 3 and the width of the connecting edge 51, so as to guide the liquid adsorbates adsorbed on the electrode plate 3 to the specified region quickly and smoothly while ensuring the adsorption capacity of the electrode plate 3.

[0063] As still another non-restrictive embodiment, referring to FIG. 4, the guiding structure 5 can have a first tilted edge 52 and a second tilted edge 53, the first tilted edge 52 is connected to the second tilted edge 53, and an angle θ is formed between the first tilted edge 52 and the second tilted edge 53, so that the liquid adsorbates adsorbed on the electrode plate 3 are guided to the specified region more quickly through the tilted edge having a greater slope. For example, when the width of the electrode plate 3 is relatively small, the structural configuration of this solution can also be used, so as to ensure that all the liquid adsorbates adsorbed on the electrode plate 3 can be guided to the specified region effectively.

[0064] As a varied embodiment not covered by the invention, referring to FIG. 5, when the specified region is located near the housing 2 of the electrostatic filter gauze 1, the guiding structure 5 can further have a first tilted edge 52 or a second tilted edge 53, so that the guiding structure 5 having a triangular structure is formed with the housing 2. Such a structural configuration can also guide the liquid adsorbates adsorbed on the electrode plate 3 to the specified region.

[0065] In another non-restrictive embodiment, the tilted edge can further be provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate, so as to form a groove. As such, accidental dripping of the liquid adsorbates during convergence towards the specified region can be better prevented. For example, when the electrostatic filter gauze 1 is vertically disposed, the converging direction of the liquid adsorbates is the vertical direction. Correspondingly, in order to better receive the liquid adsorbates that slide down, the protrusion portion can be bent upward to form a structure shaped like "L", thereby limiting a sliding path of the liquid adsorbates. Further, after sliding down into the groove, the liquid adsorbates can converge to the connecting edge 51 along the tilted edge and drip to the specified region from the connecting edge 51.

[0066] Further, referring to FIG. 3, the electrode plate 3 can include an adsorption zone electrode plate 31 and/or an ionization zone electrode plate 32, so as to adsorb, based on the principle of point discharge, the liquid adsorbates in the air passing through the electrostatic filter gauze 1. For example, the liquid adsorbates passing through the ionization zone can carry a positive charge or a negative charge under the effect of point discharge.

[0067] As a non-restrictive embodiment, the adsorption zone electrode plate 31 and the ionization zone electrode plate 32 have different heights in the converging direction on the electrode plate 3, so as to prevent end portions of the electrode plates from being excessively close to each other to cause sparking. For example, referring to FIG. 3, the adsorption zone electrode plate 31 can be higher than the ionization zone electrode plate 32.

[0068] Preferably, the adsorption zone electrode plate 31 can at least include a positive electrode plate and a negative electrode plate. Preferably, the ionization zone electrode plate 32 can at least include a grounding electrode plate.

[0069] Further, the adsorption zone electrode plate 31 and the ionization zone electrode plate 32 can be disposed in the electrostatic filter gauze 1 at an interval.

[0070] Further, referring to FIG. 6, the electrostatic filter gauze 1 can further include a separation net 6 disposed at an air inlet of the electrostatic filter gauze 1, so as to prevent the electrostatic filter gauze 1 from being touched by a user accidentally.

[0071] Further, referring to FIG. 9, the electrostatic filter gauze 1 can further include a side cover 7, so as to protect the electrostatic filter gauze 1 and limit a flowing direction of an air flow that flows through the electrostatic filter gauze 1.

[0072] The present application further provides a cooker hood. The cooker hood includes a body, and further includes the electrostatic filter gauze 1 shown in FIG. 1 to FIG. 10. The electrostatic filter gauze 1 can be disposed in the body of the cooker hood, and the air inlet of the electrostatic filter gauze 1 can be in communication with an air inlet of the body. The cooker hood in the solution of the present application can effectively resolve the problem of uncontrollable dripping of grease from the air inlet of the cooker hood, thereby greatly optimizing user experience.

[0073] Further, the cooker hood can further include a collecting portion disposed in the specified region, and the collecting portion is used for bearing adsorbates falling from the electrode plate 3. A person skilled in the art understands that through cooperation between the collecting portion and the electrostatic filter gauze 1, all liquid adsorbates adsorbed on the electrode plate can be collectively guided into the collecting portion, making sure that all grease dripping from the cooker hood (especially the electrostatic filter gauze 1) can be effectively received by the collecting portion. The liquid adsorbates can be grease (which can also be referred to as fume particles) and/or moisture molecules. The collecting portion can be a preliminary oil filter screen and/or an oil cup of the cooker hood.

[0074] An embodiment of the present application further provides an electrode plate applicable to an electrostatic filter gauze. Referring to the solution shown in FIG. 1 to FIG. 10, a collector side 31 of the electrode plate 3 has a guiding structure 5 to guide liquid adsorbates on the collector side 31 to a specified region, where liquid adsorbates on the electrode plate 3 converge towards the collector side 31 under the effect of gravity, so as to guide all the liquid adsorbates adsorbed on the electrode plate 3 to the specified region effectively, thereby avoiding uncontrollable dripping of the liquid adsorbates.

[0075] Further, the guiding structure 5 can have at least one tilted edge that guides the liquid adsorbates to the specified region, so that a convergence path of the liquid adsorbates is limited by the tilted edge, thereby guiding the liquid adsorbates on the collector side 31 to the specified region smoothly.

[0076] As a non-restrictive embodiment, the guiding structure 5 has a connecting edge 51, a first tilted edge 52 and a second tilted edge 53. The width of the connecting edge 51 is determined according to the specified region. The first tilted edge 52 and the second tilted edge are located on two sides of the connecting edge and make obtuse angles with the connecting edge 51. The liquid adsorbates are guided to the connecting edge 51 through the first tilted edge 52 or the second tilted edge 53. An effective area of the electrode plate can be increased as much as possible by using the structural configuration of the solution of the present application, so that the electrode plate 3 can adsorb as many liquid adsorbates as possible. Further, the adsorbed liquid adsorbates can be guided to the connecting edge 51 through the first tilted edge 52 or the second tilted edge 53. Because the width of the connecting edge 51 is determined according to the specified region, the liquid adsorbates guided to the connecting edge can naturally drip on the specified region and do not drip on regions out of the specified region.

[0077] Preferably, the width of the connecting edge 51 can be equal to or slightly smaller than the width of the specified region.

[0078] As a varied embodiment, the guiding structure 5 can have a first tilted edge 52 and a second tilted edge 53, the first tilted edge 52 is connected to the second tilted edge 53, and an angle θ is formed between the first tilted edge 52 and the second tilted edge 53, so that the liquid adsorbates adsorbed on the electrode plate 3 are guided to the specified region more quickly through the tilted edge having a greater slope. Further, when the width of the electrode plate 3 is relatively small, the structural configuration of this solution can also be used, so as to ensure that all the liquid adsorbates adsorbed on the electrode plate 3 can be guided to the specified region effectively.

[0079] Further, the tilted edge can be provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate 3, so as to form a groove. As such, accidental dripping of the liquid adsorbates during convergence towards the specified region can be better prevented.

[0080] Although the present application is disclosed above, the present application is not limited thereto. Any person skilled in the art can make various changes and modifications provided that they fall within the scope of the present invention which is defined by the claims.

Claims

1. An electrostatic filter gauze (1) for use in a cooker hood, comprising an electrode plate (3), wherein the electrode plate (3) is arranged so that liquid adsorbates on the electrode plate (3) converge towards the collector side (31) under the effect of gravity characterized in that a collector side (31) of the electrode plate (3) has a guiding structure (5) to guide liquid adsorbates on the collector side (31) to a specified region and in that the guiding structure (5) has a trapezoidal shape.

2. The electrostatic filter gauze (1) according to claim 1, characterized in that the guiding structure (5) has at least one tilted edge that guides the liquid adsorbates to the specified region.

3. The electrostatic filter gauze (1) according to any of claims 1 or 2, characterized in that the guiding structure (5) has a connecting edge (51), a first tilted edge (52) and a second tilted edge (53), wherein a width of the connecting edge (51) is determined according to the specified region, the first tilted edge (52) and the second tilted edge (53) are located on two sides of the connecting edge (51) and make obtuse angles with the connecting edge (51), and the liquid adsorbates are guided to the connecting edge (51) through the first tilted edge (52) or the second tilted edge (53).

4. The electrostatic filter gauze (1) according to claim 3, characterized in that degrees of the obtuse angles that the first tilted edge (52) and the second tilted edge (53) make with the connecting edge (51) are the same.

5. The electrostatic filter gauze (1) according to claim 3 or 4, characterized in that the degrees of the obtuse angles that the first tilted edge (52) and the second tilted edge (53) make with the connecting edge (51) are determined according to an electrical parameter of the electrode plate (3) and the width of the connecting edge (51).

6. The electrostatic filter gauze (1) according to any of claims 1 to 5, characterized in that the guiding structure (5) has a first tilted edge (52) and a second tilted edge (53), the first tilted edge (52) and the second tilted edge (53), and an angle is formed between the first tilted edge (52) and the second tilted edge (53).

7. The electrostatic filter gauze (1) according to any of claims 1 to 6, characterized in that the tilted edge is provided with a protrusion portion extending from the tilted edge, and the protrusion portion bends towards a direction opposite to a converging direction of the liquid adsorbates on the electrode plate (3), so as to form a groove.

8. The electrostatic filter gauze (1) according to any of claims 1 to 7, characterized in that the electrode plate (3) comprises an adsorption zone electrode plate (31) and/or an ionization zone electrode plate (32).

9. The electrostatic filter gauze (1) according to claim 8, characterized in that the adsorption zone electrode plate (31) and the ionization zone electrode plate (32) have different heights in the converging direction on the electrode plate (3).

10. The electrostatic filter gauze (1) according to any of claims 1 to 9, characterized by further comprising:
a fixing member (4), used for fixing an interval two adjacent electrode plates (3).

11. The electrostatic filter gauze (1) according to any of claims 1 to 10, characterized by further comprising:
a separation net (6), disposed at an air inlet of the electrostatic filter gauze (1).

12. A cooker hood, comprising a body, characterized by further comprising:
the electrostatic filter gauze (1) according to any of claims 1 to 11, the electrostatic filter gauze (1) being disposed in the body of the cooker hood, and the air inlet of the electrostatic filter gauze (1) being in communication with an air inlet of the body.

13. The cooker hood according to claim 12, characterized by further comprising a collecting portion disposed in the specified region, the collecting portion being used for bearing adsorbates falling from the electrode plate.

Ansprüche

1. Elektrostatisches Filtersieb (1) zur Verwendung bei einer Dunstabzugshaube, das eine Elektrodenplatte (3) umfasst, wobei die Elektrodenplatte (3) so angeordnet ist, dass flüssiges Adsorbat an der Elektrodenplatte (3) unter Einfluss der Schwerkraft zur Sammlerseite (31) hin zusammenfließt, dadurch gekennzeichnet, dass eine Sammlerseite (31) der Elektrodenplatte (3) eine Leitkonstruktion (5) zum Leiten von flüssigem Adsorbat auf der Sammlerseite (31) zu einem vorgegebenen Bereich aufweist und dass die Leitkonstruktion (5) eine Trapezform aufweist.

2. Elektrostatisches Filtersieb (1) nach Anspruch 1, dadurch gekennzeichnet, dass die Leitkonstruktion (5) mindestens eine schräge Kante aufweist, die das flüssige Adsorbat zu dem vorgegebenen Bereich leitet.

3. Elektrostatisches Filtersieb (1) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Leitkonstruktion (5) eine Verbindungskante (51), eine erste schräge Kante (52) und eine zweite schräge Kante (53) aufweist, wobei eine Breite der Verbindungskante (51) dem vorgegebenen Bereich entsprechend festgelegt ist, sich die erste schräge Kante (52) und die zweite schräge Kante (53) auf zwei Seiten der Verbindungskante (51) befinden und mit dieser einen stumpfen Winkel bilden und das flüssige Adsorbat über die erste schräge Kante (52) oder die zweite schräge Kante (53) zu der Verbindungskante (51) hin geleitet wird.

4. Elektrostatisches Filtersieb (1) nach Anspruch 3, dadurch gekennzeichnet, dass das Maß des stumpfen Winkels, den die erste schräge Kante (52) und die zweite schräge Kante (53) mit der Verbindungskante (51) bilden, gleich ist.

5. Elektrostatisches Filtersieb (1) nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Maß des stumpfen Winkels, den die erste schräge Kante (52) und die zweite schräge Kante (53) mit der Verbindungskante (51) bilden, einem elektrischen Parameter der Elektrodenplatte (3) und der Breite der Verbindungskante (51) entsprechend festgelegt wird.

6. Elektrostatisches Filtersieb (1) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Leitkonstruktion (5) die erste schräge Kante (52) und die zweite schräge Kante (53) aufweist und zwischen der ersten schrägen Kante (52) und der zweiten schrägen Kante (53) ein Winkel gebildet ist.

7. Elektrostatisches Filtersieb (1) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die schräge Kante mit einem Vorsprungsabschnitt versehen ist, der von der schrägen Kante aus vorsteht und in eine einer Zusammenflussrichtung des flüssigen Adsorbats an der Elektrodenplatte (3) entgegengesetzte Richtung hin so gekrümmt ist, dass er eine Nut bildet.

8. Elektrostatisches Filtersieb (1) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Elektrodenplatte (3) eine Adsorptionszonen-Elektrodenplatte (31) und/oder eine Ionisationszonen-Elektrodenplatte (32) umfasst.

9. Elektrostatisches Filtersieb (1) nach Anspruch 8, dadurch gekennzeichnet, dass die Adsorptionszonen-Elektrodenplatte (31) und die Ionisationszonen-Elektrodenplatte (32) in Zusammenflussrichtung an der Elektrodenplatte (3) eine unterschiedliche Höhe aufweisen.

10. Elektrostatisches Filtersieb (1) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass es ferner Folgendes umfasst:
ein Fixierelement (4), das zum Fixieren eines Abstands zwischen zwei benachbarten Elektrodenplatten (3) benutzt wird.

11. Elektrostatisches Filtersieb (1) nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass es ferner Folgendes umfasst:
ein Trenngitter (6), das an einem Lufteinlass des elektrostatischen Filtersiebs (1) angeordnet ist.

12. Dunstabzugshaube, die einen Hauptteil umfasst, dadurch gekennzeichnet, dass sie ferner Folgendes umfasst:
das elektrostatische Filtersieb (1) nach einem der Ansprüche 1 bis 11, wobei das elektrostatische Filtersieb (1) in dem Hauptteil der Dunstabzugshaube angeordnet ist und der Lufteinlass des elektrostatischen Filtersiebs (1) mit einem Lufteinlass des Hauptteils verbunden ist.

13. Dunstabzugshaube nach Anspruch 12, dadurch gekennzeichnet, dass sie ferner einen Sammelabschnitt umfasst, der in dem vorgegebenen Bereich angeordnet ist, wobei der Sammelabschnitt zum Aufnehmen von von der Elektrodenplatte herabtropfendem Adsorbat benutzt wird.

Revendications

1. Toile filtrante électrostatique (1) pour une utilisation dans une hotte aspirante, comprenant une plaque d'électrode (3), dans laquelle la plaque d'électrode (3) est disposée de manière à ce que des adsorbats liquides sur la plaque d'électrode (3) convergent vers le côté de collecteur (31) sous l'effet de la gravité,
caractérisée en ce qu'un côté de collecteur (31) de la plaque d'électrode (3) comprend une structure de guidage (5) pour guider des adsorbats liquides sur le côté de collecteur (31) jusqu'à une région déterminée et en ce que la structure de guidage (5) a une forme trapézoïdale.

2. Toile filtrante électrostatique (1) selon la revendication 1, caractérisée en ce que la structure de guidage (5) comprend au moins un bord incliné qui guide les adsorbats liquides vers la région déterminée.

3. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que la structure de guidage (5) comprend un bord de jonction (51), un premier bord incliné (52) et un deuxième bord incliné (53), dans laquelle une dimension du bord de jonction (51) est définie en fonction de la région déterminée, le premier bord incliné (52) et le deuxième bord incliné (53) sont situés sur deux côtés du bord de jonction (51) et forment des angles obtus avec le bord de jonction (51), et les adsorbats liquides sont guidés vers le bord de jonction (51) via le premier bord incliné (52) et le deuxième bord incliné (53).

4. Toile filtrante électrostatique (1) selon la revendication 3, caractérisée en ce que les degrés des angles obtus que le premier bord incliné (52) et le deuxième bord incliné (53) forment avec le bord de jonction (51) sont identiques.

5. Toile filtrante électrostatique (1) selon la revendication 3 ou 4, caractérisée en ce que les degrés des angles obtus que le premier bord incliné (52) et le deuxième bord incliné (53) forment avec le bord de jonction (51) sont déterminés en fonction d'un paramètre électrique de la plaque d'électrode (3) et de la dimension du bord de jonction (51).

6. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la structure de guidage (5) comprend un premier bord incliné (52) et un deuxième bord incliné (53), le premier bord incliné (52) et le deuxième bord incliné (53), et un angle est formé entre le premier bord incliné (52) et le deuxième bord incliné (53).

7. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le bord incliné est doté d'une partie en saillie s'étendant à partir du bord incliné, et la partie en saillie est repliée vers une direction opposée à une direction de convergence des adsorbats liquides sur la plaque d'électrode (3), de façon à former une rainure.

8. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 7, caractérisée en ce que la plaque d'électrode (3) comprend une plaque d'électrode de région d'adsorption (31) et/ou une plaque d'électrode de région d'ionisation (32).

9. Toile filtrante électrostatique (1) selon la revendication 8, caractérisée en ce que la plaque d'électrode de région d'adsorption (31) et la plaque d'électrode de région d'ionisation (32) ont des hauteurs différentes dans la direction de convergence sur la plaque d'électrode (3).

10. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'elle comprend en outre :
un élément de fixation (4), utilisé pour fixer un intervalle entre deux plaques d'électrode (3) adjacentes.

11. Toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 10, caractérisée en ce qu'elle comprend en outre :
un filet de séparation (6), disposé à une entrée d'air de la toile filtrante électrostatique (1).

12. Hotte d'aspiration, comprenant un boîtier, caractérisée en ce qu'elle comprend en outre :

la toile filtrante électrostatique (1) selon l'une quelconque des revendications 1 à 11,

la toile filtrante électrostatique (1) étant disposée dans le boîtier de la hotte aspirante,

et l'entrée d'air de la toile filtrante électrostatique (1) étant en communication avec une entrée d'air du boîtier.

13. Hotte d'aspiration selon la revendication 12, caractérisée en ce qu'elle comprend en outre une partie de collecte disposée dans la région déterminée, la partie de collecte étant utilisée pour porter des adsorbats tombant de la plaque d'électrode.

Drawing