Cross-reference to Related Application
Technical Field
[0002] The present invention relates to a technical field of household appliances, and more
particularly to an electric heating plate fixing structure of an electric heater and
an electric heater.
Background
[0003] The electric heating plates of an electric heater in the related art are fixed by
using ceramic base assemblies and bolt assemblies; fixing the electric heating plates
on the upper and lower cross beams by ceramic base assemblies and bolt assemblies.
The number of electric heating plates of an electric heater in the market is substantially
between 3 and 5, each of two ends of each plate is provided with a ceramic base assembly
and a bolt assembly, the whole machine is provided with 6-10 ceramic base assemblies
and bolt assemblies, and no preassembly can be achieved, so that at least two operators
are required to achieve assembly, and it is necessary to use both the electric screwdriver
and the sleeve to fix. The assembly is complex, the efficiency is low, and there are
high requirements for operators, which greatly increasing labor costs. Furthermore,
since the upper and lower cross beams are sheet metal parts, the wire at the bottom
of the electric heating plates in the related art can only be fixed by buckles of
the lower cross beam, so that the wire fixing method is complex, the efficiency is
low, and there is a hidden trouble of sheet metal burrs scratching the wire.
[0004] In the related art, the fixing solution of electric heating plates is as described
in patent
CN202303622U, and the electric heating plates are fixed by using ceramic base assemblies and bolt
assemblies, for example, for a four-plates product, the fixing of the plates requires
eight ceramic bases, eight screws and eight nuts, so that there are many parts to
be assembled, the operation is complex, and the assembling efficiency is low.
Summary
[0005] In order to solve the problems existing in the background, the present invention
provides an electric heating plate fixing structure of an electric heater and an electric
heater. The electric heating plate fixing structure can omit a ceramic base assembly,
has a simple structure, is easy to assemble, and has high efficiency, thereby greatly
reducing labor costs.
[0006] To achieve the object above, according to one aspect of the present invention, the
following technical solutions are used:
an electric heating plate fixing structure of an electric heater, includes a cross
beam, an outer support and a first support, wherein the cross beam is connected with
the outer support, the electric heating plate is connected with the first support,
and the first support is connected with the cross beam and/or the outer support.
[0007] In some embodiments, the first support is in a snap-fit connection and/or in a threaded
connection with the cross beam; and/or,
the first support is in a snap-fit connection and/or in a threaded connection with
the outer support.
[0008] In some embodiments, the first support is provided with a groove, and one end of
the electric heating plate is inserted into the groove.
[0009] In some embodiments, there are a plurality of grooves and a plurality of electric
heating plates, and each of the plurality of electric heating plates corresponds to
one groove of the plurality of grooves.
[0010] In some embodiments, the groove includes side walls and a bottom wall, one end of
each of the side walls is connected to the bottom wall, and the other end of each
of the side walls is a free end.
[0011] In some embodiments, each of the side walls is provided with a buckle structure;
the buckle structure includes a first buckle portion and a second buckle portion;
the first buckle portion and the second buckle portion are disposed on inner side
surfaces of two opposite side walls of the groove and are provided opposite to each
other; and the snap-fit part of each one of the first buckle portion and the second
buckle portion extends toward the direction of the other of the first buckle portion
and the second buckle portion located.
[0012] In some embodiments, there are a plurality of buckle structures provided on the groove.
[0013] In some embodiments, inner sides of the side walls are provided with a rib, the rib
is provided on two opposite surfaces of the side walls, the rib forms a U-shaped groove
in a direction toward an opening of the groove, and the opening of the U-shaped groove
and the opening of the groove face a same direction.
[0014] In some embodiments, the cross beam includes a lower cross beam, the bottom wall
is fixed on the lower cross beam, and the bottom wall is provided with a wire layout
hole and/or a wire layout groove.
[0015] In some embodiments, the wire layout hole includes two elastic clamping arms arranged
oppositely.
[0016] In some embodiments, the first support is made of a non-conductive material, and
the first support is made of a high-temperature-resistant material.
[0017] In some embodiments, the cross beam includes an upper cross beam, the electric heating
plate is connected with the upper cross beam, and the upper cross beam is connected
with the outer support by an insulating structure.
[0018] In some embodiments, the upper cross beam is in a snap-fit connection and/or in a
threaded connection with the insulating structure; and/or,
the outer support is in a snap-fit connection and/or in a threaded connection with
the insulating structure.
[0019] In some embodiments, the insulating structure is made of a non-conductive material,
and includes a body, and a first connecting portion and a second connecting portion
respectively located at two sides of the body, wherein the first connecting portion
is used for the connection between the insulating structure and the upper cross beam,
and the second connecting portion is used for the connection between the insulating
structure and the outer support.
[0020] In some embodiments, the first connecting portion includes a first buckle, the upper
cross beam is provided with a first fitting hole fitted with the first buckle, the
first buckle includes a pair of buckles oppositely provided at a front side and a
rear side of the body, and the snap-fit part of each one of the pair of buckles extends
toward the direction where the other one of the pair of buckles located; and/or the
second connecting portion includes a second buckle, and the outer support is provided
with a second fitting hole fitted with the second buckle, wherein the second buckle
includes a plurality of pairs of buckles provided at a front side and a back side
of the body, and the plurality of pairs of buckles are arranged in sequence in the
up-down direction.
[0021] In some embodiments, the insulating structure is made of a plastic material.
[0022] According to another aspect of the present invention, the following technical solution
is used:
an electric heater, including the electric heating plate, wherein the electric heating
plate is fixed by the electric heating plate fixing structure above.
[0023] The present invention proposes an electric heating plate fixing structure and an
electric heater, in which a ceramic base assembly can be omitted, and instead, the
first support is used, so that the structure is simple, the assembly is easy, and
the installation efficiency is high, thereby greatly reducing labor costs.
Brief Description of the Drawings
[0024] The above and other objects, features and advantages of the present invention will
be more apparent from the following description of embodiments of the present invention
with reference to the accompanying drawings, in which:
Fig. 1 is a schematic diagram of an overall structure of an electric heating plate
fixing structure of the electric heater according to the present invention;
Fig. 2 is a front view of the electric heating plate fixing structure of the electric
heater according to the present invention;
Fig. 3 is a schematic diagram of an overall structure of the first support of the
electric heating plate fixing structure according to the present invention;
Fig. 4 is an enlarged view of part A in Fig. 3 according to the present invention;
Fig. 5 is a side view of the electric heating plate fixing structure according to
the present invention;
Fig. 6 is an enlarged view of part B in Fig. 5 according to the present invention;
Fig. 7 is a partial schematic diagram of the first support of the electric heating
plate fixing structure according to the present invention;
Fig. 8 is a left side view of a connection of the insulating structure according to
the present invention;
Fig. 9 is a schematic diagram of the structure of a connection of the insulating structure
of the electric heating plate in accordance with the present invention;
Fig. 10 is a schematic diagram of the structure of another embodiment of the connection
of the insulating structure of the electric heating plate according to the present
invention;
Fig 11 is a sectional view of the connection of the insulating structure of the electric
heating plate according to the present invention.
[0025] In the figures,
1: electric heating plate; 2: cross beam; 21: upper cross beam; 211: connecting piece;
2111: first through hole; 212: insulating structure; 22: lower cross beam; 23: first
fitting hole; 3: outer support; 31: second fitting hole; 32: left support; 33: right
support; 4: first support; 41: groove; 411: side wall; 4111: notch; 4112: side plate;
4113: rib; 4114: reinforcing rib; 4115: buckle structure; 412: bottom wall; 413: U-shaped
groove; 42: wire layout hole; 43: wire layout groove; 5: insulating structure; 51:
first connecting portion; 511: first buckle; 52: second connecting portion; 521: second
buckle; 522: first screw; 53: body; 54: protruding structure; 541: second screw; 542:
reinforcing rib.
Detailed Description of the Embodiments
[0026] The present invention is described on the basis of the below embodiments, but the
present invention is not limited only to these embodiments. In the following detailed
description of the invention, some specific details are described in detail.
[0027] Furthermore, it will be understood by a person skilled in the art that the figures
provided herein are for illustration purposes and that the figures are not necessarily
drawn to scale.
[0028] Unless it is clearly defined by the context to be otherwise, words such as "comprise",
"include" and the like in the entire description and claims are to be construed in
an inclusive sense, rather than an exclusive or exhaustive sense; that is to say,
in the sense of "including, but not limited to".
[0029] In the description of the present invention, it should be understood that the terms
"first", "second", etc. are only used for descriptive purposes, and cannot be construed
as indicating or implying relative importance. In addition, in the description of
the present invention, unless it is defined to be otherwise, "a plurality of" means
two or more.
[0030] The present invention provides an electric heating plate 1 fixing structure of an
electric heater, and an electric heater including the electric heating plate 1 fixing
structure. As shown in Fig. 1, the electric heating plate 1 fixing structure includes
a cross beam 2 and an outer support 3, the cross beam 2 is supported by the outer
support 3, the cross beam 2 includes a lower cross beam 22, a first support 4 is provided
between the lower end of the electric heating plate 1 and the lower cross beam 22,
and the first support 4 is provided with a groove 41 or a buckle. In one embodiment,
as shown in Fig. 3, the first support 4 is provided with a plurality of grooves 41,
the number of the grooves 41 matches the number of the electric heating plates 1 of
the electric heater, the lower end of the electric heating plate 1 is inserted into
the groove 41, the electric heating plate 1 is clamped in the groove 41, the groove
41 can limit the position of the electric heating plate 1, and the electric heating
plate 1 is fixed by the groove 41, that is, the electric heating plate 1 is connected
with the lower cross beam 22 by the first support 4. In addition, as shown in Fig.
2, the cross beam 2 further includes an upper cross beam 21, the upper end of the
electric heating plate 1 is connected with the upper cross beam 21 by a fastener,
the fastener is a bolt assembly, a screw assembly or a buckle assembly, and the bolt
assembly is used here; preferably, the upper cross beam 21 is provided with a connecting
piece 211 protruding toward the direction of the electric heating plate 1, the connecting
piece 211 is provided with a threaded hole, and the electric heating plate 1 is directly
fixed on the connecting piece 211 by a bolt so as to achieve the connection between
the electric heating plate 1 and the upper cross beam 21, so that the connection is
simple, time-saving and labor-saving, and the connection strength is high. In other
embodiments, the electric heating plate 1 can also be connected with the upper cross
beam 21 by the first support 4, and the specific connecting manner will not be redundantly
repeated here. In a preferred embodiment, two ends of the upper cross beam 21 are
respectively connected with the outer support 3 by insulating structures 5; preferably,
the insulating structure 5 is made of a plastic material, which is easy to process
and shape, and is low in cost; the insulating structure 5 is in a threaded connection
or a snap-fit connection with the upper cross beam 21; likewise, the insulating structure
5 is also in a threaded connection or a snap-fit connection with the outer support
3, so as to ensure the firmness of the connection, and the insulation between the
upper cross beam 21 and the outer support 3. In addition, the first support 4 is also
made of an insulating material, preferably a plastic material, which is easy to process
and shape, is low in cost, and can ensure a high connection strength; by the insulating
structure 5 and the first support 4, the electric heating plats 1 can be insulated
from the outer support 3, and by the fixing structure above, the original ceramic
base assembly is omitted, achieving the advantages of convenient connection, simple
assembly, and high efficiency, thereby greatly reducing labor costs.
[0031] It should be noted that, the connection manner between the first support 4 and the
electric heating plate 1 is not limited to the connection manner of groove 41 or buckle,
and the connection manner can also be a threaded connection, by providing, on the
electric heating plate 1 and the first support 4, connecting holes which match with
each other, and then achieving connection by stud or screw, and this can also satisfy
the requirement for connection and insulation, and the first support 4 can also in
a snap-fit connection or a threaded connection with the lower cross beam 22. In the
present application, the electric heating plate 1 of the electric heater is fixed
by the first support 4, so that the operation process is simple, the man-hour on the
assembly process can be greatly shortened, the efficiency is obviously improved, which
can be increased by about 48%.
[0032] In a preferred embodiment, as shown in Fig. 3 and Fig. 4, the groove 41 includes
side walls 411 and a bottom wall 412, wherein one end of each of the side walls 411
is connected to the bottom wall 412, the other end of each of the side walls 411 is
a free end, notches 4111 are provided on the side walls 411, and the notches 4111
extend from the free end toward the bottom wall 412. Preferably, the notches 4111
extend from the free end to the upper surface of the bottom wall 412, so that a plurality
of side plates 4112 that are provided at intervals are formed on the side walls 411,
and this can reduce the amount of material used for the first support 4, reducing
costs. In addition, as the notches 4111 divide the sides of the groove 41 into a plurality
of side plates 4112, the elasticity of the side plates 4112 can be increased, thereby
facilitating the installation of the electric heating plate 1. Preferably, a rib 4113
is provided on the inner wall surfaces of part of the side plates 4112 of the groove
41, which are used for clamping the electric heating plate 1 in the groove 41. The
provision of the notches 4111 facilitates the processing of the groove 41, reducing
labor costs and time costs. Reinforcing ribs 4114 are provided on at least part of
the outer wall surfaces of the side plates 4112. Preferably, the reinforcing ribs
4114 are provided on the outer wall surfaces of all the side plates 4112, and the
rib 4113 is provided on the inner wall surfaces of all the side plates 4112. Each
of the rib 4113 forms a U-shaped groove 413 in a direction toward an opening of the
groove 41. The opening of the U-shaped groove 413 and the opening of the groove 41
face a same direction, so as to ensure the stability and security of the connection
between the first support 4 and the electric heating plate 1. Alternatively, the reinforcing
ribs 4114 can be provided on the outer wall surfaces of a part of the side plates
4112, and the ribs 4113 are provided on the inner wall surfaces of the other part
of the side plates 4112, thereby reducing the material cost. Preferably, the side
plates 4112 on which the reinforcing ribs 4114 are provided and the side plates 4112
on which the ribs 4113 are provided are alternatively arranged. In this way, the reinforcing
ribs 4114 and the ribs 4113 are arranged alternatively on the connection between the
electrical heating plate 1 and the first support 4, ensuring the strength of the connection,
and improving the service life of the electric heater. Furthermore, the inner walls
of part of the side plates 4112 are provided with buckles 4115. In this embodiment,
the buckles 4115 are provided on the inner walls of the side plates 4112 having the
reinforcing ribs 4114. As shown in Fig. 6, each of the buckles 4115 includes a first
buckle portion and a second buckle portion, the first buckle portion and the second
buckle portion are disposed on the inner side surfaces of two opposite side walls
of the groove, and are provided opposite to each other. The snap-fit part of each
one of the first buckle portion and the second buckle portion extends toward the direction
of the other of the first portion and the second buckle portion. The end portion of
the electric heating plate 1 is provided with a protruding structure, and the protruding
structure can pass through the first buckle portion and the second buckle portion
to be located on the lower side of the buckle 4115, so that the end portion of the
electric heating plate 1 can be fixed by the buckle structure 4115. Preferably, a
plurality of buckles 4115 are provided on each of the grooves 41, and there are three
buckles in total in the embodiment shown in Fig. 4. The number of buckles is not particularly
limited, as long as the electric heating plate 1 can be firmly fixed.
[0033] In a preferred embodiment, as shown in Fig. 1 and Fig. 4, the bottom wall 412 is
provided with a wire layout hole 42 and/or a wire layout groove 43. In the present
application, the wire layout hole 42 and the wire layout groove 43 are both provided,
and a folded edge structure that is folded toward the direction away from the groove
41 is provided around the lower cross beam 22. On the one hand, the structural strength
of the lower cross beam 22 can be improved, and on the other hand, space for the wire
arrangement of the electric heater can be provided. The first support 4 is provided
with cylindrical structure protruding toward the direction of the lower cross beam
22, and the lower cross beam 22 is provided with a first fitting hole fitted with
the cylindrical structure, the cylindrical structure is provided with a through hole,
and the cylindrical structure is the wire layout holes 42 used for the passage of
the wires. In addition, the first support 4 is provided with the wire layout groove
43 protruding toward the direction of the lower cross beam 22, the lower cross beam
22 is provided with second fitting hole fitted with the wire layout groove structure,
the wire layout groove 43 is used for the arrangement of the wires, and the wire layout
groove 43 includes two elastic clamping arms disposed opposite to each other, so as
to ensure the close fitting between the wire layout groove 43 and the second fitting
hole, and furthermore, it is more convenient to arrange the wires, and the safety
of the arrangement of wires in the wire layout groove 43 is improved. By providing
the wire layout holes 42 and the wire layout grooves 43 in the first support 4, the
wires of the electric heating plate 1 are fixed in the wire layout hole 42 and the
wire layout groove 43 of the first support 4, so that the wire arrangement is more
reasonable and the assembly efficiency is high, solving the hidden troubles of the
wiring being complicated and the wires being easy to be scratched in the prior art.
In addition, since the first support 4 is made of a plastic material, the processing
is convenient, and compared with sheet metal materials, the hidden trouble of burrs
scratching the wires can further be avoided.
[0034] As shown in Fig. 1 and Fig. 3, one end of the electric heating plate 1 of the electric
heater is directly fixed on the upper cross beam 21 by a threaded connection, and
the other end is directly inserted into the groove 41 of the first support 4 which
is made of a plastic material, and is directly fixed by the groove 41 of the first
support 4, so that the installation is simple. The first support 4 is provided with
the wire layout hole 42 and the wire layout groove 43, and the wires of the electric
heating plate 1 are fixed in the wire layout hole 42 and the wire layout grooves 43
of the first support 4, so that the assembly efficiency is high, solving the hidden
troubles of the wiring being complicated and the wires being easy to be scratched
in the prior art.
[0035] As shown in Fig. 1, in the present application, the electric heating plate 1 is directly
connected with the upper cross beam 21. The upper cross beam 21 and the outer support
3 are connected by the insulating structure 5. The insulating structure 5 is connected
with the upper cross beam 21 and the outer support 3 respectively, thereby ensuring
that the upper cross beam 21 and the outer support 3 are not in direct contact, so
that the upper cross beam 21 is in an insulated connection with the outer support
3. In this way, although the electric heating plate 1 is directly connected with the
upper cross beam 21, the insulation between the electric heating plate 1 and the outer
support 3 can also be achieved. By the insulating structure 5, the original ceramic
base assembly is omitted, which has a relatively high assembly difficulty, solving
the problems of low assembly efficiency and labor consumption when the electric heating
plates 1 are fixed by the ceramic base assemblies in the prior art, and greatly reducing
the production cost of products.
[0036] It should be noted that, as shown in Fig. 9 and Fig. 10, the upper cross beam 21
is in a snap-fit connection and/or a threaded connection with the insulating structure
5, and/or the outer support 3 is in a snap-fit connection and/or a threaded connection
with the insulating structure 5. The snap-fit connection and/or the threaded connection
above between the insulating structure 5 and the upper cross beam 21 and between the
insulating structure 5 and the outer support 3 can be used separately, or the two
connections can both be used or can be used alternatively, that is, the snap-fit connection
or the threaded connection can be used in both the connection between the insulating
structures 5 and the upper cross beam 21 and the connection between the insulating
structures 5 and the outer support 3, or the snap-fit connection and the threaded
connection can both be used in the two connections, or the snap-fit connection can
be used in one connection, and the threaded connection can be used in the other connection,
as long as the upper cross beam 21 and the outer support 3 are insulated from each
other by the insulating structure 5. Certainly, in addition to the snap-fit connection
and the threaded connection, other connection manners can also be used, such as bonding.
[0037] In a particular embodiment, as shown in Fig. 9 and Fig. 10, the upper cross beam
21 and the insulating structure 5 are connected by using both the snap-fit connection
and the threaded connection, the insulating structure 5 and the outer support 3 are
also connected by using both the snap-fit connection and the threaded connection.
Preferably, the insulating structure 5 includes a protruding structure 54, the protruding
structure 54 is disposed on one side, close to the outer support 3, of the body 53,
or the protruding structure 54 is disposed on a lower side or an upper side of the
body 53 (for ease of description, in the present invention, a side directly facing
the viewer in Fig. 1 is the front side, and an opposite side thereof is the rear side,
and the upper, lower, left and right sides in Fig. 1 are the upper, lower, left and
right sides in the present application), the protruding portion of the protruding
structure 54 is in a threaded connection with the outer support 3, so as to ensure
the stability of the connection between the insulating structure 5 and the outer support
3, and the protruding structure 54 includes a reinforcing rib 542, so as to enhance
the strength and stability of the protruding structure 54.
[0038] In a preferred embodiment, as shown in Fig. 9 and Fig. 11, the insulating structure
5 includes a body 53, and a first connecting portion 51 and a second connecting portion
52 which are respectively disposed at two sides of the body 53, wherein, the first
connecting portion 51 is used for the connection between the insulating structure
5 and the upper cross beam 21, and the second connecting portion 52 is used for the
connection between the insulating structure 5 and the outer support 3. Furthermore,
the first connecting portion 51 includes a first buckle 511, the upper cross beam
21 is provided with a first fitting hole 23 fitted with the first buckle 511. The
first buckle 511 includes a pair of buckles oppositely provided on a front side and
a rear side of the body 53, and a snap-fit part of each one of the pair of buckles
extends toward a direction where the other one of the pair of buckles located, thereby
realizing the fixation by the snap-fit connection, and guaranteeing the effective
of the snap-fit connection, so that the insulating structure 5 is in a firmly snap-fit
connection with the upper cross beam 21. As shown in Fig. 4, a first screw 522 is
also used to connect the body 53 of the insulating structure 5 and the upper cross
beam 21, so as to ensure the connection strength and prevent the influence caused
by the falling off of the first buckle 511.
[0039] In addition, as shown in Fig. 8 and Fig. 9, the second connecting portion 52 includes
a second buckle 521, a second fitting hole 31 fitted with the second buckle 521 is
provided on the outer support 3, the second buckle 521 includes a plurality of pairs
of buckles provided on a front side and a rear side of the body 53, the plurality
of pairs of buckles are arranged in sequence in an up-down direction, the provision
of the plurality of pairs of buckles can effectively ensure the stable snap-fit connection
between the insulating structure 5 and the outer support 3, so as to improve the reliability
of the connection; preferably, there are two pairs of buckles, and in the up-down
direction, the first connecting portion 51 is disposed between the two pairs of second
buckles 521, so that the whole construction of the insulating structure 5 is reasonable,
thereby ensuring the connection strength between the insulating structure 5 and the
upper cross beam 21 and the connection strength between the insulating structure 5
and the outer support 3, and ensuring the stability of the overall structure formed
after the insulating structure 5 is connected with the outer support 3 and the upper
cross beam 21. Furthermore, the protruding structure 54 is connected with the outer
support 3 by using the second screw 541, thereby preventing the influence caused by
the falling off of the second buckles 521 and ensuring the stability of the connection.
[0040] More preferably, the insulating structure 5 is made of a non-conductive material,
preferably a plastic material, which has good insulating property, is easy to process,
and has a low cost.
[0041] In one particular embodiment, as shown in Fig. 1, the cross beam 2 includes an upper
cross beam 21 and a lower cross beam 22, the outer support 3 includes a left support
32 and a right support 33, the upper cross beam 21 is connected with the left support
32 and the right support 33 respectively through the insulating structure 5, the lower
cross beam 22 is in a threaded connection with the left support 32 and the right support
33 respectively, the electric heating plate 1 is in a directly threaded connection
with the upper cross beam 21, the electric heating plate 1 is connected with the lower
cross beam 22 by the first support 4, the cross beam 2 and the outer support 3 are
made into a structure which is separable in the up-down and left-right directions,
so as to facilitate the connection operation of an operator, improving the connection
efficiency, and reducing the installation time; the electric heater includes a plurality
of electric heating plates 1 which are fixed on the upper cross beam 21 and the lower
cross beam 22, and are disposed between the left support 32 and the right support
33, so as to provide a good heating effect, and to better satisfy user requirements.
It should be noted that the insulating structure 5 may be used for the connection
between the lower cross beam 22 and the outer support 3, and the first support 4 is
provided on the upper cross beam 21, so as to achieve the insulation effect between
the electric heating plates 1 and the outer support 3.
[0042] Those skilled in the art can easily understand that, on the premise of no conflict,
the described various preferred solutions can be freely combined and superposed.
[0043] It should be understood that the above-described embodiments are merely exemplary,
rather than limiting, and that various obvious or equivalent modifications or replacements
can be made by those skilled in the art without departing from the basic principle
of the present invention, which shall belong to the scope of the claims of the present
invention.
1. An electric heating plate fixing structure of an electric heater, comprising a cross
beam, an outer support and a first support, wherein the cross beam is connected with
the outer support, the first support is used for connecting an electric heating plate
of the electric heater, and the first support is connected with the cross beam and/or
the outer support.
2. The electric heating plate fixing structure as claimed in claim 1, wherein the first
support is in a snap-fit connection and/or a threaded connection with the cross beam;
and/or the first support is in a snap-fit connection and/or a threaded connection
with the outer support.
3. The electric heating plate fixing structure as claimed in claim 2, wherein the first
support is provided with a groove, and one end of the electric heating plate is inserted
into the groove.
4. The electric heating plate fixing structure as claimed in claim 3, wherein there are
a plurality of grooves and a plurality of electric heating plates, and each of the
plurality of electric heating plates corresponds to one groove of the plurality of
grooves.
5. The electric heating plate fixing structure as claimed in claim 3, wherein the groove
comprises side walls and a bottom wall, one end of each of the side walls is connected
to the bottom wall, and the other end of each of the side walls is a free end.
6. The electric heating plate fixing structure as claimed in claim 5, wherein each of
the side walls is provided with a buckle structure, the buckle structure comprises
a first buckle portion and a second buckle portion, the first buckle portion and the
second buckle portion are disposed on inner side surfaces of two opposite side walls
of the groove and are provided opposite to each other, and a snap-fit part of any
one of the first buckle portion and the second buckle portion extends toward a direction
where the other of the first buckle portion and the second buckle portion located.
7. The electric heating plate fixing structure as claimed in claim 6, wherein there are
a plurality of the buckle structures provided on the groove.
8. The electric heating plate fixing structure as claimed in claim 5, wherein inner sides
of the side walls are provided with a rib, the rib is provided on two opposite surfaces
of the side walls, the rib forms a U-shaped groove in a direction toward an opening
of the groove, and an opening of the U-shaped groove and the opening of the groove
face a same direction.
9. The electric heating plate fixing structure as claimed in claim 5, wherein the cross
beam comprises a lower cross beam, the bottom wall is fixed on the lower cross beam,
and the bottom wall is provided with a wire layout hole and/or a wire layout groove.
10. The electric heating plate fixing structure as claimed in claim 9, wherein the wire
layout groove comprises two elastic clamping arms arranged oppositely.
11. The electric heating plate fixing structure as claimed in any one of claims 1 to 10,
wherein the first support is made of a non-conductive material, and/or the first support
is made of a high-temperature-resistant material.
12. The electric heating plate fixing structure as claimed in any one of claims 1 to 10,
wherein the cross beam comprises an upper cross beam, the electric heating plate is
connected with the upper cross beam, and the upper cross beam is connected with the
outer support by an insulating structure.
13. The electric heating plate fixing structure as claimed in claim 12, wherein the cross
beam further comprises a lower cross beam, the first support is connected with the
lower cross beam, a lower end of the electric heating plate is connected with the
support, and an upper end of the electric heating plate is connected with the upper
cross beam.
14. The electric heating plate fixing structure as claimed in claim 12, wherein the upper
cross beam is in a snap-fit connection and/or in a threaded connection with the insulating
structure; and/or, the outer support is in a snap-fit connection and/or in a threaded
connection with the insulating structure.
15. The electric heating plate fixing structure as claimed in claim 14, wherein the insulating
structure is made of a non-conductive material, and comprises a body, and a first
connecting portion and a second connecting portion which are respectively located
at two sides of the body, wherein the first connecting portion is used for the connection
between the insulating structure and the upper cross beam, and the second connecting
portion is used for the connection between the insulating structure and the outer
support.
16. The electric heating plate fixing structure as claimed in claim 15, wherein the first
connecting portion comprises a first buckle, the upper cross beam is provided with
a first fitting hole fitted with the first buckle, the first buckle comprises a pair
of buckles oppositely provided at a front side and a rear side of the body, and a
snap-fit part of each one of the pair of buckles extends toward a direction where
the other one of the pair of buckles located; and/or, the second connecting portion
comprises a second buckle, and the outer support is provided with a second fitting
hole fitted with the second buckle, the second buckle comprises a plurality of pairs
of buckles provided at a front side and a rear side of the body, and the plurality
of pairs of buckles are sequentially arranged in an up-down direction.
17. The electric heating plate fixing structure as claimed in claim 12, wherein the insulating
structure is made of a plastic material.
18. An electric heater, an electric heating plate of the electric heater being fixed by
the fixing structure as claimed in any one of claims 1 to 17.