Switch fixing support and range hood
By designing the locking parts for the limit flange surrounding the plate recess on the hood collector on the hood, the problem of the lower strength of the hood when installing the large switch assembly is solved, and a higher strength of the hood is achieved and stability.
Patent Information
- Application Number
- CN202420867063.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-24
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-04-24
AI Technical Summary
When installing larger switch components in the existing hood, more materials need to be removed to fix the bracket, resulting in reduced strength at the front end of the hood and prone to deformation and scrapping.
A switch fixing bracket is designed, with a limit flange arranged around the mounting hole to form a closed loop for wrapping the outer side wall of the switch assembly and reducing the removal area of the smoke collecting hood through the recesses and locking parts on the mounting plate body. , increase the strength of the cigarette collector hood.
The removal area of the front end switch hole of the cigarette collector hood is reduced, the strength of the cigarette collector hood is improved, deformation and scrapping are prevented, and the stable installation of the switch assembly is ensured.
Smart Images
Figure CN222143197U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of kitchen appliances, in particular to a switch fixing bracket and a range hood. Background Art
[0002] The functions of range hood products are gradually increasing, and the control switches of range hoods have also been changed from traditional button switches to touch button switches, and even switch components with screens. However, the size of the switches is also getting larger and larger.
[0003] Generally, the front end of the smoke hood of a European-style range hood is where the control glass panel and switch assembly are placed. Generally, the switch assembly needs to be fixed by the switch fixing bracket and the switch cover plate. Generally, the switch limit of the switch fixing bracket of a European-style machine is an outer ring limit flange structure. Therefore, the entire switch fixing bracket needs to be placed in the smoke hood during assembly, and the material of the entire switch fixing bracket and the outer ring of the switch assembly projected to the front end of the smoke hood needs to be removed accordingly. For larger switch assemblies (such as switch assemblies with screens), the corresponding switch fixing bracket size also needs to be made large.
[0004] When the switch fixing bracket is large, more material needs to be removed from the front end of the smoke hood in order to place the entire switch bracket into the smoke hood, which reduces the strength of the front end of the smoke hood, makes it prone to deformation and scrapping, and increases production difficulty. Utility Model Content
[0005] The utility model aims to provide a switch fixing bracket and a range hood, so as to alleviate the technical problem that the switch hole on the existing smoke hood is too large, resulting in poor structural stability of the smoke hood.
[0006] In a first aspect, the utility model provides a switch fixing bracket, comprising: a mounting plate body, the mounting plate body is provided with mounting holes penetrating the front and rear surfaces thereof, the mounting holes are used to install the switch assembly, and the edge of the mounting hole has a limiting flange folded toward the back side of the mounting plate body;
[0007] The limiting flange is arranged around the circumference of the mounting hole.
[0008] Furthermore, the limiting flange goes around the circumference of the mounting hole to form a closed loop, which is used to wrap the circumferential outer side wall of the switch assembly.
[0009] Furthermore, a limiting structure is provided on the limiting flange, and the limiting structure is used to limit the switch assembly in the left-right direction and the up-down direction.
[0010] Further, the limiting flange includes a first side edge and a second side edge spaced apart in the up-down direction, and the distance between the first side edge and the second side edge is equal to the distance between the upper edge and the lower edge of the switch assembly, so as to prevent the switch assembly from moving in the up-down direction relative to the limiting flange;
[0011] And / or, one of the limit flange and the switch assembly is provided with a limit protrusion, and the other is provided with a limit slot, and the limit protrusion is engaged with the limit slot to prevent the switch assembly from moving in the left and right directions relative to the limit flange.
[0012] Furthermore, the switch fixing bracket further comprises a cover plate and a locking member, wherein a pin is arranged on one side edge of the cover plate, and a first assembly hole is arranged on the other side edge;
[0013] A plug hole is provided on the side of the limiting flange corresponding to the plug pin, and a second assembly hole is provided on the side corresponding to the first assembly hole. The locking member is used to lock the first assembly hole and the second assembly hole after the plug pin is plugged into the plug hole, so that the cover plate abuts against the back of the switch assembly.
[0014] Furthermore, the mounting plate body is provided with a first recessed portion which is recessed from the front side thereof toward the back side thereof, the first recessed portion is provided on the upper side of the mounting hole, and the first recessed portion is communicated with the upper edge of the mounting plate body;
[0015] And / or, the mounting plate body is provided with a second recessed portion which is recessed from the front side thereof toward the back side thereof, the second recessed portion is provided at the lower side of the mounting hole, and the second recessed portion is communicated with the lower edge of the mounting plate body.
[0016] Furthermore, a third recess is provided on the mounting plate body, and the third recess is provided on the left side and / or the right side of the mounting hole. A through hole penetrating the mounting plate body is provided on the bottom surface of the third recess.
[0017] In a second aspect, the utility model provides a range hood comprising the above-mentioned switch fixing bracket.
[0018] Furthermore, the switch assembly comprises:
[0019] shell;
[0020] A touch module, the touch module comprising a display screen and a first circuit board, the display screen is connected to the outer wall of the housing, and the first circuit board is connected to the interior of the housing;
[0021] Wave module;
[0022] A second circuit board, wherein the first circuit board and the waving module are electrically connected to a signal input end of the second circuit board, and a signal output end of the second circuit board is used to be connected to a main controller of the kitchen appliance;
[0023] The first circuit board and the second circuit board are arranged in parallel and spaced apart from each other. At least a partial area of the second circuit board faces the first circuit board, and its plane projection falls on the first circuit board.
[0024] Furthermore, the display screen and the first circuit board are connected via a first wiring harness, the waving module and the second circuit board are connected via a second wiring harness, and an isolation plate is provided in the housing to separate the first wiring harness and the second wiring harness.
[0025] The utility model has at least the following advantages or beneficial effects:
[0026] The switch fixing bracket provided by the utility model comprises: a mounting plate body, on which a mounting hole penetrating the front and rear surfaces thereof is arranged, the mounting hole is used to install the switch assembly, and the edge of the mounting hole has a limiting flange folded toward the back side of the mounting plate body; and the limiting flange is arranged around the circumference of the mounting hole.
[0027] In this embodiment, the limit flange of the switch fixing bracket is set at the mounting hole for mounting the switch assembly, rather than at the outer edge of the mounting plate. Therefore, only material slightly larger than the projected area of the outer ring of the limit flange needs to be removed from the smoke hood to form the switch hole, which reduces the material removal of the switch hole at the front end of the smoke hood and improves the strength of the smoke hood. In addition, the surrounding limit flange can contact the side wall of the switch assembly, and limit the switch assembly on the plane perpendicular to the mounting hole.
[0028] The range hood provided by the utility model includes the switch fixing bracket mentioned above. Since the range hood provided by the utility model uses the switch fixing bracket mentioned above, the range hood provided by the utility model also has the advantages of the switch fixing bracket. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 A schematic diagram of a switch fixing bracket provided in an embodiment of the utility model;
[0031] Figure 2 for Figure 1 A partial enlarged view of position A in the middle;
[0032] Figure 3 A schematic diagram of the assembly of the switch fixing bracket and the glass panel provided in an embodiment of the utility model;
[0033] Figure 4 for Figure 3 A partial enlarged view of position B in the middle;
[0034] Figure 5 for Figure 3 A partial enlarged view of the C position in the middle;
[0035] Figure 6 An exploded view of a range hood provided in an embodiment of the utility model;
[0036] Figure 7 A schematic diagram of the dimensions of a switch hole, a switch fixing frame and a switch assembly of a range hood provided in an embodiment of the utility model;
[0037] Figure 8 An exploded view of a switch assembly of a range hood provided in an embodiment of the utility model;
[0038] Fig. 9 for Figure 8 A partial enlarged view of the D position in the middle;
[0039] Fig.10 A schematic diagram of a cover of a switch assembly of a range hood provided by an embodiment of the utility model;
[0040] Fig.11 A schematic diagram of a wiring harness buckle of a switch assembly of a range hood provided by an embodiment of the utility model;
[0041] Fig.12 A schematic diagram of the internal structure of a switch assembly of a range hood provided in an embodiment of the utility model.
[0042] Icons: 100 - switch fixing bracket; 111 - second recess; 112 - third recess; 120 - mounting hole; 130 - limit flange; 131 - limit slot; 140 - glue overflow port; 150 - glue overflow hole;
[0043] 200 - glass panel;
[0044] 300 - switch assembly; 310 - limiting protrusion; 320 - first circuit board; 321 - first wiring harness; 322 - display screen; 330 - waving module; 331 - second wiring harness; 340 - second circuit board; 350 - supporting rib; 360 - supporting column; 370 - wiring harness buckle; 380 - box body; 390 - cover body; 391 - isolation rib;
[0045] 400 - adhesive;
[0046] 500 - cover plate; 510 - plug pin; 520 - screw hole; 600 - smoke hood; 610 - switch hole. DETAILED DESCRIPTION
[0047] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0049] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0050] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.
[0051] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0053] like Figure 1 , Figure 6 and Figure 7 As shown, the switch fixing bracket 100 provided by the utility model is used to be installed on the glass panel 200, and comprises: a mounting plate body, the front side of which is in contact with the back side of the glass panel 200. The mounting plate body is provided with a mounting hole 120 penetrating the front and rear surfaces thereof, and the shape and area of the mounting hole 120 are roughly consistent with the projection shape and area of the switch assembly 300. After the switch fixing bracket 100 is pasted to the glass panel 200, the switch assembly 300 is placed in the mounting hole 120, so that the display screen 322 on the front side of the switch assembly 300 is in contact with the glass panel 200.
[0054] The edge of the mounting hole 120 has a limiting flange 130 folded toward the back side of the mounting plate body, and the limiting flange 130 corresponds to the switch hole 610 on the front end surface of the smoke hood 600. After the switch assembly 300 and the switch fixing bracket 100 are connected into a whole, the limiting flange 130 is used to align the switch hole 610 on the smoke hood 600 to achieve positioning and assembly.
[0055] In this embodiment, the limit flange 130 of the switch fixing bracket 100 is set at the mounting hole 120 for mounting the switch assembly 300, rather than at the outer edge of the mounting plate. Therefore, only a material slightly larger than the outer projection area of the limit flange 130 needs to be removed from the smoke hood 600 to form the switch hole 610, which reduces the material removal of the switch hole 610 at the front end of the smoke hood 600 and improves the strength of the smoke hood 600.
[0056] Furthermore, since the inner area of the limiting flange 130 is completely hollowed out, the sheet metal is prevented from affecting the function of the switch assembly 300.
[0057] The mounting hole 120 is roughly rectangular, and the limiting flange 130 may include four independent limiting parts respectively arranged around the mounting hole 120, or it may be surrounded as a whole as in the present embodiment, that is, the limiting flange 130 extends around the circumference of the mounting hole 120 and forms a closed loop, which is used to wrap the circumferential outer wall of the switch assembly 300 to prevent condensed oil and condensed water from contacting the switch assembly 300, thereby protecting the switch assembly 300.
[0058] The length a6 of the inner ring projection surface of the limiting flange 130 is slightly greater than the length c3 of the switch assembly 300, and the widths a4 and a5 of the inner ring projection surface of the limiting flange 130 are slightly greater than the widths c1 and c2 of the switch assembly 300, meeting the minimum size installation requirements of the switch assembly 300. The length b3 of the switch hole 610 is slightly greater than the length a3 of the outer ring of the limiting flange 130, and the widths b1 and b2 of the switch hole 610 are slightly greater than the widths a1 and a2 of the outer ring of the limiting flange 130, meeting the minimum size installation requirements of the switch fixing bracket 100. Therefore, the material removal area of the switch hole 610 is approximately equal to the outer ring projection area of the switch assembly 300, meeting the minimum size installation requirements of the switch assembly 300, reducing the material removal of the switch hole 610, and improving the strength of the smoke hood 600.
[0059] The limiting flange 130 is provided with a limiting structure, and the limiting structure is used to limit the switch assembly 300 in the left-right direction and the up-down direction.
[0060] Specifically, the limiting flange 130 includes a first side and a second side that are spaced apart in the up-down direction. The distance between the first side and the second side is equal to the distance between the upper edge and the lower edge of the switch assembly 300, so as to prevent the switch assembly 300 from moving in the up-down direction relative to the limiting flange 130. Among them, the limiting flange 130 is formed by connecting the left side wall, the upper side wall, the right side wall and the lower side wall end to end. The first side can be a part of the upper side wall, or it can be the upper side wall, depending on the specific shape of the switch assembly 300. The same second side has the same setting method, so as to limit the switch assembly 300 in the up-down direction. Specifically, the inner circle projection surface width a4, a5 of the limiting flange 130 is slightly larger than the width c1, c2 of the switch assembly 300, wherein the small end width a4≈c1, plays a role in limiting the upper and lower positions of the switch assembly 300.
[0061] In this embodiment, a limiting slot 131 is provided on the limiting flange 130 , and a limiting protrusion 310 is provided on the switch assembly 300 . The limiting protrusion 310 is engaged with the limiting slot 131 to prevent the switch assembly 300 from moving in the left and right direction relative to the limiting flange 130 .
[0062] like Figure 3 and Figure 4As shown, the switch fixing bracket 100 also includes a cover plate 500 and a locking member, wherein a pin 510 is provided on one side edge of the cover plate 500, and a first assembly hole is provided on the other side edge. A first assembly hole is provided on the side corresponding to the pin 510 on the limiting flange 130, and a second assembly hole is provided on the side corresponding to the screw hole 520. During installation, the pin 510 is first inserted into the plug hole, and then the cover plate 500 is pressed down to align the first assembly hole and the second assembly hole, wherein the first assembly hole can be a screw hole 520, and the locking member can be a screw, and the first assembly hole and the second assembly hole are locked by the screw. The cover plate 500 abuts against the back of the switch assembly 300 so that the switch assembly 300 is pressed between the cover plate 500 and the glass panel 200.
[0063] The mounting plate body is provided with a first recessed portion that is recessed from the front side toward the back side, the first recessed portion is provided on the upper side of the mounting hole 120, and the first recessed portion is communicated with the upper edge of the mounting plate body. The mounting plate body is provided with a second recessed portion 111 that is recessed from the front side toward the back side, the second recessed portion 111 is provided on the lower side of the mounting hole 120, and the second recessed portion 111 is communicated with the lower edge of the mounting plate body.
[0064] like Figure 2 and Figure 5 As shown, both the first recess 111 and the second recess 111 are used to store glue. When the mounting plate is connected to the glass panel 200, the adhesive 400 can be first injected into the first recess 111 and the second recess 111, and then the mounting plate is buckled on the glass panel 200, and the adhesive 400 can fill the first recess 111 and the second recess 111. Taking the second recess 111 as an example, because the second recess 111 is connected to the lower edge of the mounting plate, when the second recess 111 is attached to the glass panel 200, a glue overflow port 140 can be formed below the mounting plate and the glass panel 200. When too much adhesive 400 is placed in the second recess 111, the glue overflow port 140 plays a role in guiding the glue overflow, preventing the glue from overflowing inward and contaminating the display area of the glass panel 200 and the switch assembly 300.
[0065] The mounting plate body is provided with a third recess 112, which is provided on the left and right sides of the mounting hole 120, and a through hole penetrating the mounting plate body is provided on the bottom surface of the third recess 112. In this embodiment, the third recess 112 is provided on both the left and right sides of the mounting hole 120, and the third recess 112 is in a fully enclosed form to avoid circumferential glue overflow. The bottom surface of the third recess 112 is provided with a glue overflow hole 150, which plays a role in guiding the glue overflow when there is too much adhesive 400, and prevents the glue from overflowing inward and contaminating the display area of the glass panel 200 and the switch assembly 300.
[0066] The range hood provided by the utility model includes the switch fixing bracket 100. Since the range hood provided by the utility model uses the switch fixing bracket 100, the range hood provided by the utility model also has the advantages of the switch fixing bracket 100.
[0067] The range hood further includes a switch assembly 300, which is installed in the mounting hole 120. The switch assembly 300 has at least two functional modules, which realize different functions. Both functional modules are connected to signal transmission harnesses. An isolation rib 391 is provided in the switch assembly 300, which is used to separate signal transmission harnesses connected to different functional modules to avoid signal interference.
[0068] Specifically, the switch assembly 300 includes: a housing, a touch module, a waving module 330 and a second circuit board 340. The housing includes a box body 380 and a cover body 390, which can be assembled together.
[0069] like Figure 8 As shown, the touch module includes a display screen 322 and a first circuit board 320, and the display screen 322 is connected to the outer wall of the box body 380 and is attached to the glass panel 200. The first circuit board 320 is connected to the inside of the box body 380. The waving module 330 executes corresponding instructions by collecting the user's waving action. The second circuit board 340 plays a summarizing role. The first circuit board 320 and the waving module 330 are both electrically connected to the signal input end of the second circuit board 340, and the signal output end of the second circuit board 340 is used to connect to the main controller of the kitchen appliance.
[0070] like Fig. 9 As shown, in order to reduce the length of the switch assembly 300 in the left-right direction, the first circuit board 320 and the second circuit board 340 are arranged in parallel and spaced apart from each other. At least a part of the second circuit board 340 has a projection on the plane toward the first circuit board 320 that falls on the first circuit board 320, that is, the two are arranged in an interlaced manner. Specifically, a support rib 350 and a support column 360 can be arranged on the box body 380. The support rib 350 is used to support the first circuit board 320, and the support column 360 supports the second circuit board 340. The height of the support column 360 is higher than the height of the support rib 350. Therefore, the second circuit board 340 can be placed above the first circuit board 320, and some areas of the left and right spaces can be overlapped, so that the overall length of the switch assembly 300 is reduced, and the size of the corresponding switch hole 610 on the smoke hood 600 can be reduced, which reduces the material removal area and increases the strength of the smoke hood 600.
[0071] like Fig.10 and Fig.12As shown, the waving module 330 and the second circuit board 340 are connected via the first wiring harness 321, the display screen 322 and the first circuit board 320 are connected via the second wiring harness 331, and an isolation rib 391 is provided on the cover body 390. When the cover body 390 is combined with the box body 380, the isolation rib 391 separates the first wiring harness 321 and the second wiring harness 331.
[0072] Further, such as Fig.11 As shown, in order to avoid the disorder of the wire harness, a wire harness buckle 370 is further provided inside the box body 380, and the wire harness buckle 370 can tighten the signal transmission wire harness. In this embodiment, the wire harness buckle 370 is arranged close to the side wall of the box body 380, and its head has a guide arc, and the distance between the top of the wire harness buckle 370 and the side wall is greater than the distance between the bottom and the side wall, so that the wire harness is guided to enter the bottom of the wire harness buckle 370 through the gap between the side wall of the box body 380 and the wire harness buckle 370.
[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A switch fixing bracket (100), It is characterized in that include: A mounting plate body, the mounting plate body being provided with a mounting hole (120) penetrating the front and rear surfaces thereof, the mounting hole (120) being used to mount a switch assembly (300), the edge of the mounting hole (120) having a limiting flange (130) folded toward the back side of the mounting plate body; Furthermore, the limiting flange (130) is arranged around the circumference of the mounting hole (120).
2. The switch fixing bracket (100) according to claim 1, It is characterized in that The limiting flange (130) is arranged around the circumference of the mounting hole (120) to form a closed loop, and is used to wrap around the circumferential outer wall of the switch assembly (300).
3. The switch fixing bracket (100) according to claim 2, It is characterized in that A limiting structure is provided on the limiting flange (130), and the limiting structure is used to limit the switch assembly (300) in the left-right direction and the up-down direction.
4. The switch fixing bracket (100) according to claim 3, It is characterized in that The limiting flange (130) comprises a first side edge and a second side edge spaced apart in the up-down direction, wherein the distance between the first side edge and the second side edge is equal to the distance between the upper edge and the lower edge of the switch assembly (300), so as to prevent the switch assembly (300) from moving in the up-down direction relative to the limiting flange (130); And / or, one of the limit flange (130) and the switch assembly (300) is provided with a limit protrusion (310), and the other is provided with a limit slot (131), and the limit protrusion (310) is engaged with the limit slot (131) to prevent the switch assembly (300) from moving in the left-right direction relative to the limit flange (130).
5. The switch fixing bracket (100) according to any one of claims 1 to 4, It is characterized in that The switch fixing bracket (100) further comprises a cover plate (500) and a locking member, wherein a pin (510) is arranged on one side edge of the cover plate (500) and a first assembly hole is arranged on the other side edge; A plug hole is provided on the side of the limiting flange (130) corresponding to the plug pin (510), and a second assembly hole is provided on the side corresponding to the first assembly hole. The locking member is used to lock the first assembly hole and the second assembly hole after the plug pin (510) is plugged into the plug hole, so that the cover plate (500) abuts against the back side of the switch assembly (300).
6. The switch fixing bracket (100) according to any one of claims 1 to 4, It is characterized in that The mounting plate body is provided with a first recessed portion which is recessed from the front side thereof toward the back side thereof, the first recessed portion is provided on the upper side of the mounting hole (120), and the first recessed portion is communicated with the upper edge of the mounting plate body; And / or, the mounting plate body is provided with a second recess (111) which is recessed from the front side thereof toward the back side thereof, the second recess (111) is provided at the lower side of the mounting hole (120), and the second recess (111) is connected to the lower edge of the mounting plate body.
7. The switch fixing bracket (100) according to any one of claims 1 to 4, It is characterized in that A third recess (112) is provided on the mounting plate body, and the third recess (112) is provided on the left side and / or the right side of the mounting hole (120). A through hole penetrating the mounting plate body is provided on the bottom surface of the third recess (112).
8. A range hood, It is characterized in that It comprises the switch fixing bracket (100) as claimed in any one of claims 1 to 7.
9. The range hood according to claim 8, It is characterized in that The switch assembly (300) comprises: shell; A touch module, the touch module comprising a display screen (322) and a first circuit board (320), the display screen (322) being connected to an outer wall of the housing, and the first circuit board (320) being connected to an interior of the housing; Wave module (330); a second circuit board (340), wherein the first circuit board (320) and the hand-waving module (330) are electrically connected to a signal input end of the second circuit board (340), and a signal output end of the second circuit board (340) is used to be connected to a main controller of the kitchen appliance; The first circuit board (320) and the second circuit board (340) are arranged in parallel and spaced apart from each other, and at least a partial area of the second circuit board (340) has a plane projection toward the first circuit board (320) that falls on the first circuit board (320).
10. The range hood according to claim 9, It is characterized in that The display screen (322) and the first circuit board (320) are connected via a first wiring harness (321), the waving module (330) and the second circuit board (340) are connected via a second wiring harness (331), and an isolation plate is provided in the housing to separate the first wiring harness (321) and the second wiring harness (331).