Switch and kitchen appliance

Abstract

The utility model provides a switch and a kitchen appliance, and relates to the technical field of kitchen appliances, and the switch provided by the utility model comprises a housing, a touch module, an expansion module and a master control circuit board. The touch module comprises a diaphragm and a diaphragm circuit board, the diaphragm is connected to the shell, and the diaphragm circuit board is connected to the interior of the shell; the function realized by the expansion module is different from the function of the touch module; the diaphragm circuit board and the expansion module are electrically connected with the main control circuit board, and the main control circuit board is connected with a power panel of a kitchen appliance.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a switch and a kitchen appliance. Background Art

[0002] The kitchen appliance is provided with a touch switch, and the user gives certain instructions to the kitchen appliance, such as turning on or off, by touching the membrane of the touch switch.

[0003] As the functions of the electrical appliance increase, other functional devices may be provided on the panel of the electrical appliance, for example, a fume sensor module, an infrared sensor module, a hand-waving sensor, etc.

[0004] If the touch switch and the functional components are arranged separately, it will cause inconvenience in assembly, and the functional components in the kitchen appliances are not produced in a modular manner, which is not conducive to maintenance. Utility Model Content

[0005] The utility model aims to provide a switch and a kitchen appliance to alleviate the technical problem of low modularization of functional components in existing kitchen appliances.

[0006] In a first aspect, the utility model provides a switch, comprising:

[0007] shell;

[0008] A touch module, the touch module includes a diaphragm and a diaphragm circuit board, the diaphragm is connected to the outer wall of the shell, and the diaphragm circuit board is connected to the inside of the shell;

[0009] Extension module: The functions implemented by the extension module are different from those of the touch module;

[0010] The main control circuit board, the diaphragm circuit board and the expansion module are all electrically connected to the main control circuit board, and the main control circuit board is connected to the power board of the kitchen appliance.

[0011] Further, at least one expansion module is a medium-triggered module, and the front surface of the housing has a medium passing area located in front of the medium-triggered module, so that the triggering medium passes through the front surface of the housing;

[0012] And / or, at least one expansion module is a signal-triggered module, the area covered by the projection of the signal-triggered module on the front side of the shell is a stop area, and the stop area on the front side of the shell is a complete plate body.

[0013] Furthermore, the membrane circuit board and the main control circuit board are arranged in parallel and spaced apart from each other, and at least a partial area on the main control circuit board is projected onto the plane where the membrane circuit board is located and falls on the membrane circuit board.

[0014] Furthermore, along the width direction of the diaphragm circuit board, a first positioning column and a second positioning column are arranged in the housing at intervals, and the spacing between the first positioning column and the second positioning column is consistent with the width of the diaphragm circuit board, and is used to limit the diaphragm circuit board in the width direction, and the top surfaces of the first positioning column and the second positioning column are higher than the top surface of the diaphragm circuit board, and the top surfaces of the first positioning column and the second positioning column support the main control circuit board;

[0015] And / or, along the length direction of the diaphragm circuit board, a third positioning column and a fourth positioning column are spaced apart in the shell, and the spacing between the third positioning column and the fourth positioning column is consistent with the length of the diaphragm circuit board, and is used to limit the diaphragm circuit board in the length direction, and the top surfaces of the third positioning column and the fourth positioning column are higher than the top surface of the diaphragm circuit board, and the top surfaces of the third positioning column and the fourth positioning column support the main control circuit board.

[0016] Furthermore, the main control circuit board has a mounting area, at least one expansion module is mounted on the mounting area, and the projection of the mounting area toward the plane where the membrane circuit board is located falls on the outside of the membrane circuit board;

[0017] Furthermore, a notch extending from an edge of the main control circuit board to the installation area is provided on the main control circuit board, and the notch is located on the side where the signal transceiver end of the expansion module is located.

[0018] Furthermore, an inwardly recessed platform is provided on the outer wall of the shell;

[0019] The diaphragm is assembled in the sinking platform, and the triggering surface of the diaphragm is higher than the plane where the opening of the sinking platform is located.

[0020] Furthermore, a protruding portion protruding outward is provided on a surface of the housing facing away from the diaphragm, and the protruding portion is used to abut against the back cover of the panel component, so that after the switch and the panel component are assembled, the diaphragm abuts against the glass panel.

[0021] Furthermore, a lamp body is provided on a side of the diaphragm circuit board facing the diaphragm;

[0022] A through hole penetrating the outer shell is provided on the bottom surface of the sink; at least two frames for separating the through holes are provided on the inner wall of the through hole, and a light channel is formed in the hollow area of ​​the frame so that the light generated by the lamp body is irradiated to each triggering area of ​​the diaphragm through the light channel, and the projection of any triggering area toward the sink falls within the hollow area of ​​a frame.

[0023] In a second aspect, the utility model provides a kitchen appliance, comprising the above-mentioned switch.

[0024] The utility model has at least the following advantages or beneficial effects:

[0025] The switch provided by the utility model comprises: a housing, a touch module, an expansion module and a main control circuit board. The touch module comprises a diaphragm and a diaphragm circuit board, the diaphragm is connected to the housing, and the diaphragm circuit board is connected to the inside of the housing; the function realized by the expansion module is different from that of the touch module; the diaphragm circuit board and the expansion module are both electrically connected to the main control circuit board, and the main control circuit board is connected to the power board of the kitchen appliance.

[0026] Each functional module in the switch, including the lines in the diaphragm circuit board and the expansion module, is connected to the main control circuit board, which processes and feeds back the signals sent by the diaphragm circuit board and the expansion module. The main control circuit board is connected to the power board to achieve unified power supply to each functional module. The switch integrates multiple functions and has a high degree of modularization. During assembly, the switch can be installed on the kitchen appliance with only one installation.

[0027] The kitchen appliance provided by the utility model includes the above switch. Since the kitchen appliance provided by the utility model uses the above switch, the kitchen appliance provided by the utility model also has the advantages of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 An exploded view of a switch provided in an embodiment of the utility model;

[0030] Figure 2 An assembly diagram of a main control circuit board and a screen assembly of a switch provided in an embodiment of the utility model;

[0031] Figure 3 An assembly diagram of the screen assembly and the diaphragm of the switch provided in an embodiment of the utility model.

[0032] Icon: 110 - diaphragm; 120 - diaphragm circuit board;

[0033] 210 - screen assembly; 212 - sink; 213 - frame; 214 - support column; 215 - first positioning column; 220 - cover; 221 - raised portion; 310 - waving module; 320 - bluetooth module; 330 - wifi module; 341 - medium passing area; 342 - stopper area;

[0034] 400 - main control circuit board; 410 - notch; 500 - lamp body. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] like Figure 1 As shown, the switch provided by the utility model can be installed on various kitchen appliances, such as range hoods, steam ovens, etc.

[0042] The switch includes: a housing, a touch module, an expansion module and a main control circuit board 400.

[0043] The touch module includes a membrane 110 and a membrane circuit board 120. The membrane 110 is connected to the outer wall of the housing, and the membrane circuit board 120 is connected to the inside of the housing. A through hole is provided on the front of the housing for the connection cable between the membrane 110 and the membrane circuit board 120 to pass through, wherein the cables are all connected to the back side of the membrane 110. After the membrane 110 is installed, the cables are hidden in the housing and cannot be seen.

[0044] The shape of the housing is roughly a cuboid, including a screen assembly 210 and a cover 220. The screen assembly 210 is roughly box-shaped, and the two are assembled by buckles or screws. The diaphragm 110 is attached to the front of the screen assembly 210 by structural adhesive. By touching or applying pressure to the diaphragm 110, the resistance of the diaphragm 110 is changed, thereby realizing the trigger button function. The diaphragm circuit board 120 can be connected to the housing by screws, buckles or rivets. The diaphragm 110 can be a black and white film or a color film.

[0045] like Figure 2 As shown, the functions implemented by the expansion module are different from those of the touch module. The expansion module can enrich the functions of the switch and integrate the multi-function module into one switch, avoiding the problem of multiple installation steps caused by separate arrangement. The product has a high degree of integration and is convenient for disassembly, assembly and maintenance.

[0046] In this embodiment, the expansion module can be a medium-triggered module, and the front of the housing has a medium-passing area 341 located in front of the medium-triggered module, so that the trigger medium passes through the front of the housing. Specifically, the medium-triggered module can be a waving module 310, and the medium-passing area 341 has a light hole, so that the waving module 310 can detect external light signals, thereby determining the user's gesture action.

[0047] In this embodiment, the expansion module can be a signal-triggered module. The area covered by the projection of the signal-triggered module on the front of the shell is the stop area 342. The stop area 342 on the front of the shell is a complete plate. In this embodiment, there are two signal-triggered modules, namely the wifi module 330 and the Bluetooth module 320, which do not need to penetrate the shell and can send and receive signals. Therefore, the parts in front of the two are complete plates without through holes, which reduces the entry of oil smoke into the switch.

[0048] The diaphragm circuit board 120 and the expansion module are electrically connected to the main control circuit board 400, and the main control circuit board 400 is connected to the power board of the kitchen appliance. Each functional module in the switch, including the circuits in the diaphragm circuit board 120 and the expansion module, is connected to the main control circuit board 400 to achieve signal transmission and feedback. The main control circuit board 400 is connected to the power board to achieve unified power supply to each functional module. The switch integrates multiple functions and has a high degree of modularization. During assembly, the switch can be installed on the kitchen appliance with only one installation.

[0049] The diaphragm circuit board 120 and the main control circuit board 400 can both be connected to the screen assembly 210 on the housing, and can be arranged in parallel and spaced apart from each other through their respective positioning structures. The support column 214 supporting the main control circuit board 400 is higher than the support column 214 supporting the diaphragm circuit board 120, so the main control circuit board 400 is higher than the diaphragm circuit board 120, wherein the screen assembly 210 is roughly box-shaped. In order to reduce the lateral length of the switch, at least a portion of the main control circuit board 400 has a projection toward the plane where the diaphragm circuit board 120 is located, and falls on the diaphragm circuit board 120, so that the diaphragm circuit board 120 and the main control circuit board 400 partially overlap.

[0050] In this embodiment, along the width direction of the membrane circuit board 120, the first positioning column 215 and the second positioning column are arranged in the housing at intervals. The spacing between the first positioning column 215 and the second positioning column is consistent with the width of the membrane circuit board 120, which is used to limit the membrane circuit board in the width direction to prevent the membrane circuit board 120 from shaking in the width direction. The top surfaces of the first positioning column 215 and the second positioning column are higher than the top surface of the membrane circuit board 120. The top surfaces of the first positioning column 215 and the second positioning column support the main control circuit board, thereby ensuring that the membrane circuit board 120 and the main control circuit board 400 are separated by a certain distance from top to bottom.

[0051] Similarly, in another feasible scheme, along the length direction of the diaphragm circuit board 120, a third positioning column and a fourth positioning column are arranged at intervals in the shell, and the spacing between the third positioning column and the fourth positioning column is consistent with the length of the diaphragm circuit board 120, which is used to limit the diaphragm circuit board 120 in the length direction to prevent it from shaking in the length direction, and the top surfaces of the third positioning column and the fourth positioning column are higher than the top surface of the diaphragm circuit board 120, and the top surfaces of the third positioning column and the fourth positioning column support the main control circuit board 400. Specifically, in an feasible scheme, a first positioning column 215, a second positioning column, a third positioning column and a fourth positioning column are provided at the same time, and the first positioning column 215, the second positioning column, the third positioning column and the fourth positioning column are the same height.

[0052] In addition to limiting the diaphragm circuit board 120 in the horizontal direction, the above-mentioned positioning columns can also position the main control circuit board 400 in the vertical direction.

[0053] Furthermore, the main control circuit board 400 has a mounting area, and at least one expansion module is mounted on the mounting area. In this embodiment, the Bluetooth module 320 and the WiFi module 330 are mounted on the main control circuit board 400. The projection of the mounting area toward the plane where the membrane circuit board 120 is located falls on the outside of the membrane circuit board 120, thereby preventing the membrane circuit board 120 from interfering with the Bluetooth module 320 and the WiFi module 330. In addition, during assembly, the gap between the membrane circuit board 120 and the main control circuit board 400 is also filled with glue to isolate the electrical gap between the two.

[0054] The switch is installed in the installation bin of the panel component, the material of the installation bin is metal, and the main control circuit board 400 is provided with a notch 410 extending from its edge to the installation area, and the notch 410 is located on the side where the signal transceiver end of the expansion module is located, thereby increasing the distance between the signal transceiver end and the installation bin and reducing signal interference with the metal installation bin.

[0055] like Figure 3 As shown, an inwardly concave depression 212 is provided on the outer wall of the housing; the diaphragm 110 is assembled in the depression 212, and the triggering surface of the diaphragm 110 is higher than the plane where the opening of the depression 212 is located. Since the diaphragm 110 protrudes from the surface of the housing, when the switch and the panel component are assembled, the diaphragm 110 can be more easily approached and attached to the glass panel, so that the diaphragm 110 is fully in contact with the glass surface to ensure the function is triggered.

[0056] The switch is placed in the installation chamber, and the rear cover is buckled. The diaphragm 110 on the front of the switch contacts the glass on the panel member. A protruding portion 221 is provided on the side of the housing facing away from the diaphragm 110. In this embodiment, the protruding portion 221 is in the shape of a strip, extending in the left-right direction, and there are three of them. When the rear cover is connected to the installation chamber, the protruding portion 221 abuts against the rear cover of the panel member, so that after the switch is assembled with the panel member, the diaphragm 110 abuts against the glass panel, and the diaphragm 110 forms a good contact with the glass panel.

[0057] like Figure 3As shown, a lamp body 500 is provided on one side of the diaphragm circuit board 120 facing the diaphragm 110. The number of lamp bodies 500 can be multiple, which are used to illuminate the trigger area on the diaphragm 110. The surface of the diaphragm 110 is printed with rich color patterns to achieve a colorful display effect. The bottom surface of the sink 212 is provided with a through hole that penetrates the shell, and the inner wall of the through hole is provided with at least two frames 213 for separating the through holes. The number of frames 213 can be determined according to the number of functions of the switch and is set one by one. The hollow area of ​​the frame 213 forms a light channel, and the projection of any trigger area toward the sink 212 falls within the hollow area of ​​the frame 213. Taking a trigger area as an example, the backward projection of the trigger area is only within one frame 213 and does not span two frames 213. The purpose of setting the frame 213 is to avoid cross-light from different trigger areas, so that the light generated by the lamp body 500 can be irradiated to each trigger area of ​​the diaphragm 110 through each light channel, thereby displaying the pattern information represented by each.

[0058] The kitchen appliance provided by the utility model includes the above switch. Since the kitchen appliance provided by the utility model uses the above switch, the kitchen appliance provided by the utility model also has the advantages of the switch.

[0059] 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, characterized in that: include: shell; A touch module, the touch module comprising a membrane (110) and a membrane circuit board (120), the membrane (110) being connected to the housing, and the membrane circuit board (120) being connected to the interior of the housing; An expansion module, wherein the function implemented by the expansion module is different from the function of the touch module; A main control circuit board (400), the membrane circuit board (120) and the expansion module are both electrically connected to the main control circuit board (400), and the main control circuit board (400) is connected to a power board of the kitchen appliance.

2. The switch according to claim 1, characterized in that: At least one expansion module is a medium-triggered module, and the front surface of the housing has a medium passing area (341) located in front of the medium-triggered module, so that the triggering medium passes through the front surface of the housing; And / or, at least one expansion module is a signal-triggered module, the area covered by the projection of the signal-triggered module on the front side of the shell is a stop area (342), and the stop area on the front side of the shell is a complete plate.

3. The switch according to claim 1, characterized in that: The membrane circuit board (120) and the main control circuit board (400) are arranged at intervals in the upper and lower parts, and at least a partial area on the main control circuit board (400) is projected onto the plane where the membrane circuit board (120) is located, and falls on the membrane circuit board (120).

4. The switch according to claim 3, characterized in that: A first positioning column (215) and a second positioning column are arranged in the housing at intervals along the width direction of the membrane circuit board (120); the spacing between the first positioning column (215) and the second positioning column is consistent with the width of the membrane circuit board (120), and is used to limit the membrane circuit board (120) in the width direction; and the top surfaces of the first positioning column (215) and the second positioning column are higher than the top surface of the membrane circuit board (120); the top surfaces of the first positioning column (215) and the second positioning column support the main control circuit board (400); And / or, along the length direction of the diaphragm circuit board (120), a third positioning column and a fourth positioning column are arranged at intervals in the shell, and the spacing between the third positioning column and the fourth positioning column is consistent with the length of the diaphragm circuit board (120), and is used to limit the diaphragm circuit board (120) in the length direction, and the top surfaces of the third positioning column and the fourth positioning column are higher than the top surface of the diaphragm circuit board (120), and the top surfaces of the third positioning column and the fourth positioning column support the main control circuit board (400).

5. The switch according to claim 4, characterized in that: The main control circuit board (400) has a mounting area, at least one expansion module is mounted on the mounting area, and a projection of the mounting area toward the plane where the membrane circuit board (120) is located falls outside the membrane circuit board (120).

6. The switch according to claim 5, characterized in that The main control circuit board (400) is provided with a notch (410) extending from its edge to the installation area, and the notch (410) is located on the side where the signal transceiver end of the expansion module is located.

7. The switch according to any one of claims 1 to 6, characterized in that: An inwardly recessed sink (212) is provided on the outer wall of the shell; The diaphragm (110) is assembled in the sink (212), and the triggering surface of the diaphragm (110) is higher than the plane where the opening of the sink (212) is located.

8. The switch according to claim 7, characterized in that A protruding portion (221) protruding outward is provided on a surface of the housing facing away from the diaphragm (110), and the protruding portion (221) is used to abut against a rear cover of a panel component, so that after the switch is assembled with the panel component, the diaphragm (110) abuts against a glass panel.

9. The switch according to claim 7, characterized in that: A lamp body (500) is provided on a side of the membrane circuit board (120) facing the membrane (110); The bottom surface of the sink (212) is provided with a through hole penetrating the outer shell; the inner wall of the through hole is provided with at least two frames (213) for separating the through holes, and the hollow areas of the frames (213) form a light channel, so that the light generated by the lamp body (500) is irradiated to each triggering area of ​​the diaphragm (110) through the light channel, and the projection of any one of the triggering areas toward the sink (212) falls within the hollow area of ​​one frame (213).

10. A kitchen appliance, characterized in that: A switch comprising any one of claims 1 to 9.

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