VACUUM CLEANER AND CASING THEREOF

Abstract

 A vacuum cleaner and a casing (1) thereof are provided. The vacuum cleaner includes the casing (1), a motor (21) and a blower fan (22) which is driven by the motor (21) for sucking air. The inner space of the casing (1) is divided into a motor chamber (6) and a dust chamber (7) by a partition wall (5). The partition wall (5) is provided with an air suction grid (8) which makes air current flow into the motor chamber (6) from the dust chamber (7). The partition wall (5) is a side wall of the motor chamber (6); the partition wall (5), the motor chamber (6) and the casing (1) are formed in integration; the opening direction of the motor chamber (6) on the casing (1) is opposite to the opening direction of the dust chamber (7) on the casing (1). The motor (21) and the blower fan (22) are fixed in the motor chamber (6). In the present invention, the partition wall located between the motor chamber and the dust chamber is sturdy and durable and has good leak tightness; the motor is simple is simple in fixing structure and occupies small space of base, and thus facilitate the miniaturization development trend of horizontal vacuum cleaner.

Description

Field of the Invention

[0001] The present invention relates to the technical field of vacuum cleaner manufacturing, in particular relates to a vacuum cleaner and a casing thereof, in which a dust chamber and a motor chamber are separated through a partition wall.

Background of the prior art

[0002] In a common filtering type horizontal vacuum cleaner in the prior art, the motor generally has a filter chamber and a motor chamber as well as a necessary partition wall between them. The filter chamber and the motor chamber are separated through the partition wall, and the partition wall is generally provided with an air suction grid.

[0003] Generally, the motor is fixed on a base through a separate structure. For example, according to Chinese patent application (publication number: CN101380215A), the motor is fixed on the base through a fixing skeleton, and springs on both sides of motor are used for fixing. To overcome defects, such as rubber ring and fixing groove are used to fix the motor, the rubber ring is easy-deformed and the coordination between the rubber ring and air suction is untight, Chinese patent application (publication number: CN101371769A) provides an improved motor fixing structure, wherein air suction connection channels are provided in the front of motor chamber and on the corresponding position of the air suction grid in the vacuum cleaner; the internal channel opening and the groove are used to fix the motor, and the air suction connection channel and the motor chamber are formed in integration. Therefore, the fixing structure of motor is not liable to deform and can firmly fix the motor on the position of central axis.

[0004] The horizontal vacuum cleaner product in said similar structure has the following defects: the partition wall located between the motor chamber and the filter chamber has insufficient strength, and thus is easy to generate deformation under the effect of vacuum suction and the heat of the motor chamber, resulting in air leakage and improper sealing. In addition, the motor has complicated fixing structure and thus wastes the space of the base, which is adverse to the miniaturization development trend of horizontal vacuum cleaner.

Summary of the Invention

[0005] It is a technical objective of the present invention to provide a vacuum cleaner and a casing thereof, so that the partition wall between the motor chamber and the dust chamber is sturdy and durable.

[0006] Furthermore, another technical objective of the present invention is that the motor is simple in fixing structure and occupies small room of base, so that the handling operation of motor is convenient.

[0007] To solve said technical problems, the present invention provides the following technical solution:

[0008] A vacuum cleaner, comprising a casing, a motor and a blower fan which is driven by the motor for sucking air; the inner space of the casing is divided into a motor chamber and a dust chamber by a partition wall; the partition wall is provided with an air suction grid which makes air current flow into the motor chamber from the dust chamber; the motor and the blower fan are fixed in the motor chamber; characterized in the following: the partition wall is a side wall of the motor chamber; the partition wall, the motor chamber and the casing are formed in integration; the opening direction of the motor chamber on the casing is opposite to the opening direction of the dust chamber on the casing.

[0009] Furthermore, in the vacuum cleaner, the motor chamber is composed of a top wall, a side wall and the partition wall, an air outlet is provided on the top wall, and the air outlet corresponds to the position of the wind outlet.

[0010] A bump is provided on the partition wall, and a fixing groove is provided on a side wall being opposite to the partition wall; the motor, the blower fan and a motor cover are combined into an assembly part; one end of the assembly part is clamped with the bump, and another end of the assembly part is clamped with the fixing groove through a motor hood fixing block.

[0011] The present invention also provides a casing for vacuum cleaner, comprising a casing body; the inner space of the casing body is divided into a motor chamber and a dust chamber by a partition wall; the partition wall is provided with an air suction grid which makes air current flow into the motor chamber from the dust chamber; characterized in the following: the partition wall is a side wall of the motor chamber; the partition wall, the motor chamber and the casing are formed in integration; the opening direction of the motor chamber on the casing is opposite to the opening direction of the dust chamber on the casing.

[0012] Furthermore, the casing of vacuum cleaner also comprises a front cover used to seal the opening of the dust chamber on the casing and a bottom case cover plate used to seal the opening of the motor chamber on the casing.

[0013] It also comprises a back cap provided on the rear side at top of the casing, and a wind outlet corresponding to the motor chamber is provided on the back cap.

[0014] Through said technical solution, the partition wall between the motor chamber and the dust chamber of the vacuum cleaner and its casing is sturdy and durable. The motor is simple in fixing structure and occupies small space of base, and thus facilitate the miniaturization development trend of horizontal vacuum cleaner.

Description of attached drawings

[0015] 
Fig 1 is the spatial structure diagram of the vacuum cleaner in the embodiment 1 of the present invention;
Fig 2 is the exploded view of the casing of vacuum cleaner in the embodiment 1 of the present invention;
Fig 3 is the spatial structure where the front cover is opened and the dust bag is removed in the embodiment 1 of the present invention;
Fig 4 is the spatial structure diagram where the bottom case cover plate is removed from the casing as shown in Fig 2;
Fig 5 is the top view where the bottom case cover plate is removed from the casing as shown in Fig 2;
Fig 6 is the internal structure diagram where the front cover and back cap are removed from the casing as shown in Fig 2;
Fig 7 is the installation diagram of the motor in the vacuum cleaner in the embodiment 1 of the present invention;
Fig 8 is the longitudinal profile view of the vacuum cleaner in the embodiment 1 of the present invention.

1	Casing	2	Front cover	3	Back cap
4	Bottom case cover plate	5	partition wall	6	Motor chamber
7	dust chamber	8	air suction grid	10	suction inlet
11	Wind outlet	12	Air outlet	15	Top wall
16	Side wall	21	Motor	22	Blower fan
23	Motor seal ring	24	Motor hood	25	Silencing sponge
26	Motor wedge	27	Fixing block of motor hood	28	Fixing block
30	Wheel	31	handle	111	Outlet grid
100	Casing body	81	Center of air suction grid	82	First grid
83	Second grid	84	Air suction channel	29	bump
32	Dust bag

Detailed Description of Preferred Embodiments

[0016] The technical solution of the present invention is further described with reference to the attached drawings:

[0017] Fig 1 is the spatial structure diagram of the vacuum cleaner in the embodiment 1 of the present invention; Fig 2 is the exploded view of the casing of vacuum cleaner in the embodiment I of the present invention (To clearly indicate the technical solution to be protected by the present invention, the parts irrelevant with the technical solution are omitted here); Fig 3 is the spatial structure where the front cover is opened and the dust bag is removed in the embodiment 1 of the present invention.

[0018] Refer to Figs 1, 2, 3 and 7, the present invention provides a horizontal vacuum cleaner, comprising a casing 1, a motor 21 and a blower fan 22 located inside the casing body. The casing 1 mainly comprises a casing body 100, a front cover 2, a back cap 3 and a bottom case cover plate 4, and its shape is similar to a barrel. The back cap 3 and the casing body 100 are fastened and coupled through bolts. The front cover 2 is coupled with the back cap 3 in pivot mode through clamping, and is coupled with the casing body 100 through buckle. Definitions: the left side of Fig 1 represents the front side of the vacuum cleaner, the right side of Fig 1 represents the rear side of the vacuum cleaner, the upper side of Fig 1 represents the upper side of the vacuum cleaner, and the lower side of Fig 1 represents the lower side of the vacuum cleaner. Wheels 30 are mounted on both sides at the rear part lower the vacuum cleaner body, a wind outlet 11 is provided at the back cap 3, and an outlet grid 111 is provided at the wind outlet 11. Two pedals are provided on both sides of the wind outlet 11, one is switch pedal and another is taking-up pedal. A suction inlet 10 is provided on the front end of the casing body 100; one end of the dust pipe is mounted on the suction inlet 10, another end of the dust pipe is coupled with a suction head (not shown in the Fig). A handle 31 suitable for manual lifting operation is provided on the upper part of the suction inlet 10. A wheel 30 is provided on the lower part of the casing. In the operation, the suction head is moved and the wheels 30 are used to drive the vacuum cleaner body to move for dust suction.

[0019] Fig 4 is the spatial structure diagram where the bottom case cover plate is removed from the casing as shown in Fig 2; With reference to Fig 2, Fig 3 and Fig 4, a dust chamber 7 is provided on the position where it is located on the first-half part of the vacuum cleaner and is nearby the suction inlet 10, the opening of the dust chamber 7 on the casing 1 is sealed by the front cover 2. A dust bag 32 is provided in the dust chamber, and the dust bag can be a paper bag or a cloth bag, etc. In this embodiment, this dust bag is a paper bag. A motor chamber 6 is provided on the second-half part of the vacuum cleaner, where it is close with the dust chamber 7. The opening of the motor chamber 6 on the casing 1 is sealed by the bottom case cover plate 4. The dust chamber 7 and the motor chamber 6 are separated through a partition wall 5, and the partition wall 5 may have plane surface, cambered surface or irregular surface. The partition wall 5 is provided with an air suction grid 8 which makes air current flow into the motor chamber 6 from the dust chamber 7, and the air suction grid 8 comprises many air suction channels 84. The air suction grid 8 can be in circular shape, square shape, diamond shape or in another arbitrary shape. In this embodiment, the air suction grid 8 is in square shape; multiple evenly distributed first grids 82 are radically arranged on the air suction grid center 81 of the air suction grid 8. With the air suction grid center 81 as the center of circle, multiple second grids 83 are distributed in the peripheral direction. The first grids 82 are connected with the second grids 83; the air suction channel 84 is enclosed by the first grid 82 and the second grid 83 and is used to communicate with the dust chamber and the motor chamber.

[0020] In the motor chamber 6, the main body part of the partition wall 5 protrudes towards the motor chamber 6, and has spacing from the left and right side walls and the bottom case cover plate 4; one of its purposes is to facilitate the heat dissipation of the motor, and another purpose is to provide fastening and connecting devices on it, so that it is connected with the bottom case cover plate 4. The air suction channel 84 is located on the protruding partition wall 6.

[0021] In this embodiment, the partition wall 5 is a side wall of the motor chamber 6; the partition wall 5, the motor chamber 6 and the casing 1 are formed in integration, and the opening direction of the motor chamber 6 on the casing 1 is opposite to the opening direction of the dust chamber 7 on the casing 1. The motor chamber 6 is reversely provided in the casing 1, so that the upper, lower, left and right positions of the partition wall 5 receive the strengthened support from the casing 1, the structure is relatively sturdy and is not easy to produce deformation. As the result, the vacuum cleaner has good tightness and is uneasy to cause air leakage.

[0022] Fig 5 is the top view where the bottom case cover plate is removed from the casing as shown in Fig 2; Fig 6 is the internal structure diagram where the front cover and back cap are removed from the casing as shown in Fig 2; Fig 7 is the installation diagram of the motor in the vacuum cleaner in the embodiment 1 of the present invention; With reference to Fig 2, Fig 5, Fig 6 and Fig 7, the motor chamber 6 is composed of a top wall 15, a side wall 16, and the partition wall 5; the motor chamber 6 is reversely provided in the casing 1, and its inside is used to mount an assembly part being composed of the motor 21 and the blower fan 22; the motor 21 drives the blower fan 22 for air suction; the opening at bottom is sealed by the bottom case cover plate 4 which is fastened on the casing 1 through bolts, so that its opening and sealing operations are convenient. An air outlet 12 is provided on the top wall 15, and the position of the air outlet 12 corresponds to the position of the wind outlet 11 which is provided on the back cap 3.

[0023] As shown in Fig 2 in combination with Fig 7, a motor seal ring 23 is fitted on one end of the motor 21 where it is closed with the blower fan 22, a silencing sponge 25 is fitted on the motor 21, a motor hood 24 is fitted outside the silencing sponge 25; a motor wedge 26 is located between the motor hood 24 and the motor and is used to fix the motor. A motor hood fixing block 27 is fitted on one of the motor 21 where it is closed with the motor wedge 26, the motor hood fixing block 27 is fixed with the fixing groove (not shown in the Fig) in the side wall of motor chamber 6, and the fixing groove is exactly provided on the side wall being opposite to the partition wall 5. In the motor chamber 6, a fixing block 28 is provided on the side wall 6 where the partition wall 5 is located. The fixing block 28 is used to fix the motor; three bumps are provided at the lower end of the air suction grid 8 are used to clamp the motor seal ring 23.

[0024] When installing the assembly part of the motor 21 and the blower fan 22 into the motor chamber 6, firstly bottom-up the motor 1, install the assembly part of the motor 21 and the blower fan 22(including the motor 21, the blower fan 22, the motor seal ring 23, the silencing sponge 25, the motor hood 24 and the motor wedge 26) in the motor chamber 6 on the casing 1, clamp the motor hood fixing block 27 on the fixing groove in the side wall of motor chamber 6, clamp the motor seal ring 23 on the bump 29, so that the assembly part of the motor and the blower fan is firmly fixed in the motor chamber 6. Then, adopt fasteners such as bolts are used to fasten the bottom case cover plate 4 on the casing 1, so that the bottom case cover plate 4 seals the bottom opening of the motor chamber 6 on the casing 1, and seal the assembly part of the motor 21 and the blower fan 22 into the cavity formed by the motor chamber 6 and the bottom case cover plate 4. The post-installation state refers to Fig 8.

[0025] Fig 8 is the longitudinal profile view of the vacuum cleaner in the embodiment 1 of the present invention. As shown in Fig 8, the direction of arrow presents the airflow direction. When the vacuum cleaner is operating, the motor 21 rotates and drives the blower fan 22 to rotate accordingly, and by way of the suction inlet 10, suck the air with dust from suction head to the dust bag 32 installed in the dust chamber 7; the sucked air is filtered through the dust bag 32, and the dust is left in the dust bag 32 in the dust chamber 7, while the clean air passes through the air suction grid 8, the blower fan 22 and the motor 21, and also cools down the motor 21 when it passes through the motor 21; then, by way of the air outlet 12 on the top wall 15 and the wind outlet 11 on the back cap 3 , the clean air is discharged from the vacuum cleaner.

[0026] Finally, it must be mentioned that said embodiments are merely used to describe the present invention instead of limiting the present invention. Although the present invention is described in detail with reference to the embodiments, those skilled in the art shall understand that, all the modifications or equivalent replacements made to the present invention with deviation from the spirit and range of the present invention shall fall within the claims of the present invention.

Claims

1. A vacuum cleaner, comprising a casing (1), a motor (21) and a blower fan (22) which is driven by the motor (21) for sucking air; the inner space of the casing (1) is divided into a motor chamber (6) and a dust chamber (7) by a partition wall (5); the partition wall (5) is provided with an air suction grid (8) which makes air current flow into the motor chamber (6) from the dust chamber (7); the motor (21) and the blower fan (22) are fixed in the motor chamber (6); characterized in the following: the partition wall (5) is a side wall of the motor chamber (6); the partition wall (5), the motor chamber (6) and the casing (1) are formed in integration; the opening direction of the motor chamber (6) on the casing (1) is opposite to the opening direction of the dust chamber (7) on the casing (1).

2. The vacuum cleaner of claim 1, characterized in the following: the casing (1) comprises a front cover (2) which is provided on the front side at the top of the casing and is used to seal the opening of the dust chamber (7) on the casing (1); the casing (1) also comprises a bottom case cover plate (4), which is provided at the bottom of the casing (1) and is used to seal the opening of the motor chamber (6) on the casing (1).

3. The vacuum cleaner of claims 1 or 2, characterized in the following: the casing (1) also comprises a back cap (3) provided on the rear side at top of the casing, and a wind outlet (11) corresponding to the motor chamber (6) is provided on the back cap (3).

4. The vacuum cleaner of claim 3, characterized in the following: an outlet grid (111) is provided at the wind outlet (11).

5. The vacuum cleaner of claim 4, characterized in the following: the motor chamber (6) is composed of a top wall (15), a side wall (16) and the partition wall (5), an air outlet (12) is provided on the top wall (15), and the air outlet (12) corresponds to the position of the wind outlet (11).

6. The vacuum cleaner of claim 5, characterized in the following: a bump (29) is provided on the partition wall (5), and a fixing groove is provided on a side wall (16) being opposite to the partition wall (5); the motor (21), the blower fan (22) and a motor cover (24) are combined into an assembly part; one end of the assembly part is clamped with the bump (29), and another end of the assembly part is clamped with the fixing groove through a motor hood fixing block (27).

7. The vacuum cleaner of claim 6, characterized in the following: a motor seal ring (23) is provided on one end of the assembly part that is close with the blower fan (22), and the motor seal ring (23) is clamped with the bump (29).

8. The vacuum cleaner of claim 6, characterized in the following: the motor hood (24) and the motor (21) are fixed together through a motor wedge (26).

9. The vacuum cleaner of claim 6, 7 or 8, characterized in the following: a silencer is provided between the motor hood (24) and the motor (21).

10. The vacuum cleaner of claim 9, characterized in the following: the silencer is a silencing sponge.

11. The vacuum cleaner of claim 1, characterized in the following: the main body part of the partition wall (5) protrudes toward the motor chamber (6), and has spacing from the left and right side walls and the bottom case cover plate (4).

12. The vacuum cleaner of claim 1, characterized in the following: a handle (31) is provided in the front of the casing (1), and a wheel (3) is provided below the casing (1).

13. A casing of vacuum cleaner, comprising a casing body (100); the inner space of the casing body (100) is divided into a motor chamber (6) and a dust chamber (7) by a partition wall (5); the partition wall (5) is provided with an air suction grid (8) which makes air current flow into the motor chamber (6) from the dust chamber (7); characterized in the following: the partition wall (5) is a side wall of the motor chamber (6); the partition wall (5), the motor chamber (6) and the casing (1) are formed in integration; the opening direction of the motor chamber (6) on the casing (1) is opposite to the opening direction of the dust chamber (7) on the casing (1).

14. The casing of vacuum cleaner of claim 13, characterized in the following: the casing (1) of vacuum cleaner also comprises a front cover (2) used to seal the opening of the dust chamber (7) on the casing (1) and a bottom case cover plate(4) used to seal the opening of the motor chamber (6) on the casing (1).

15. The casing of vacuum cleaner of claim 14, characterized in the following: the casing (1) also comprises a back cap (3) provided on the rear side at top of casing, and a wind outlet (11) corresponding to the motor chamber (6) is provided on the back cap (3).

16. The casing of vacuum cleaner of claim 15, characterized in the following: an outlet grid (111) is provided at the wind outlet (11).

17. The casing of vacuum cleaner of claim 15, characterized in the following: the motor chamber (6) is composed of a top wall (15), a side wall (16) and the partition wall (5), an air outlet (12) is provided on the top wall (15), and the air outlet (12) corresponds to the position of the wind outlet (11).

18. The casing of vacuum cleaner of 12, characterized in the following: a bump (29) used to clamp the blower fan or the motor is provided on the partition wall (5), and a fixing groove used to clamp the blower fan or the motor is provided on a side wall (16) being opposite to the partition wall (5).

19. The casing of vacuum cleaner of claim 13, characterized in the following: the main body part of the partition wall (5) protrudes toward the motor chamber (6), and has spacing from the left and right side walls and the bottom case cover plate (4).

20. The casing of vacuum cleaner of claim 13, characterized in the following: the partition wall (5) is flat surface, cambered surface or irregular surface.

Drawing