Electrical switch

Abstract

The utility model discloses an electrical switch, which comprises a middle frame, at least one switch piece and at least one key cap, each key cap corresponds to at least one switch piece, and the switch piece penetrates through a bottom plate of the middle frame along the thickness direction of the bottom plate of the middle frame. The key cap comprises at least one pressing operation end and a connecting part connected with the pressing operation end, at least one pressing operation end corresponds to a switch piece, the connecting part is pivotally connected with the middle frame, the electrical switch further comprises a magnet mutual exclusion pair, at least one switch piece corresponds to the magnet mutual exclusion pair, and the magnet mutual exclusion pair is pivotally connected with the middle frame. The magnet mutual exclusion pair comprises a first magnet and a second magnet, the first magnet is arranged on the bottom plate of the middle frame, the second magnet is arranged on the pressing operation end corresponding to the switch piece, and the opposite parts of the first magnet and the second magnet in the magnet mutual exclusion pair have the same polarity.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to an electrical switch. Background Art

[0002] Electrical switches are important components of electrical equipment. For example, light sources require light source switches installed on the wall for control.

[0003] Most of the mainstream switch panels on the market currently use supporting shrapnel and springs to support and reset the buttons after pressing them, ensuring that the buttons are reset after the pressing function is achieved. However, as the electrical switches are used, the supporting structural parts of the electrical switches will inevitably age and deform, and the reset effect will gradually deteriorate, affecting the normal use of the electrical switches. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art to a certain extent. To this end, the utility model provides an electrical switch, which has a good resetting effect.

[0005] The utility model provides an electrical switch, comprising a middle frame, at least one switch component and at least one key cap, each key cap corresponds to at least one switch component, and the switch component penetrates the bottom plate of the middle frame along the thickness direction of the bottom plate of the middle frame.

[0006] The button cap includes at least one pressing operation end and a connecting portion connected to the pressing operation end, at least one of the pressing operation ends corresponds to a switch component, and the connecting portion is pivotally connected to the middle frame so that the button cap can switch between a switch operation state and an intermediate state. In the switch operation state, one of the pressing operation ends presses the corresponding switch component, and in the intermediate state, the pressing operation end corresponding to the switch component is separated from the corresponding switch component.

[0007] In which, the electrical switch also includes a mutually exclusive pair of magnets, at least one of the switch components corresponds to the mutually exclusive pair of magnets, the mutually exclusive pair of magnets includes a first magnet and a second magnet, the first magnet is arranged on the bottom plate of the middle frame, and the second magnet is arranged on the pressing operation end corresponding to the switch component, and the relative parts of the first magnet and the second magnet in the mutually exclusive pair of magnets have the same polarity.

[0008] Optionally, the pressing operation end of the button cap includes a first pressing operation end and a second pressing operation end, the first pressing operation end, the connecting portion and the second pressing operation end are arranged in sequence, the first pressing operation end corresponds to the switch element, and the second magnet is arranged on the first pressing operation end;

[0009] The switch operation state includes a first switch operation state, in which the first pressing operation end presses the corresponding switch element.

[0010] Optionally, the second pressing operation end corresponds to the corresponding switch element.

[0011] In the first switch operation state, the second pressing operation end is separated from the corresponding switch element;

[0012] The switch operation state includes a second switch operation state, in which the second pressing operation end presses the corresponding switch element, and the first pressing operation end is separated from the corresponding switch element.

[0013] Optionally, the button cap further comprises a first elastic hook arranged at the first pressing operation end, and a second elastic hook arranged at the second pressing operation end, a first card slot is arranged at a position on the bottom plate of the middle frame opposite to the first elastic hook, a first card edge extending toward a middle of the first card slot is arranged at an opening of the first card slot, a second card slot is arranged at a position on the bottom plate of the middle frame corresponding to the second elastic hook, and a second card edge extending toward a middle of the second card slot is arranged at an opening of the second card slot;

[0014] When the button cap is in the first switch operation state, the first elastic hook is inserted into the first clamping groove and does not contact the first clamping edge, and the second elastic hook contacts the second clamping edge;

[0015] When the button cap is in the second switch operation state, the second elastic hook is inserted into the second clamping groove and does not contact the second clamping edge, and the first elastic hook contacts the first clamping edge;

[0016] When the button cap is in the middle state, the first elastic hook is inserted into the first slot and is limited by the first edge, and the second elastic hook is inserted into the second slot and is limited by the second edge.

[0017] Optionally, the button cap further includes a first pressing protrusion and a second pressing protrusion, wherein the first pressing protrusion is arranged on the first pressing operation end and protrudes toward a switch member corresponding to the first pressing operation end, and the second pressing protrusion is arranged on the second pressing operation end and protrudes toward a switch member corresponding to the second pressing operation end.

[0018] Optionally, the second magnet on the first pressing operation end is located on a side of the first elastic hook close to the first pressing protrusion, and the second magnet on the second pressing operation end is located on a side of the second elastic hook close to the second pressing protrusion.

[0019] Optionally, a support member is provided on a surface of one side of the second pressing operation end facing the bottom plate of the middle frame.

[0020] Optionally, one of an elastic pivot slot and a pivot axis is formed on the side of the connecting portion facing the bottom plate of the middle frame, and the other of the elastic pivot slot and the pivot axis is formed on the side of the bottom plate of the middle frame facing the connecting portion, and a part of the pivot axis is movably disposed in the pivot slot.

[0021] Optionally, the middle frame further comprises a middle frame fence arranged around the bottom plate of the middle frame, the electrical switch further comprises a main control board, a main control board back cover, a power board cover, a power board and a bottom shell, the middle frame fence is cooperatively connected with the flange of the bottom shell, the main control board back cover, the power board cover and the power board are sequentially stacked in the middle frame fence, the bottom plate and the space defined by the flange of the bottom shell; and the button cap and the power board cover are respectively located on both sides of the bottom plate of the middle frame;

[0022] The electrical switch also includes a magnet attraction pair, the magnet attraction pair includes a third magnet and a fourth magnet, the third magnet is arranged on the back cover of the main control board, the fourth magnet is arranged on the cover of the power board, and the polarities of the opposite parts of the third magnet and the fourth magnet of the same magnet attraction pair are opposite.

[0023] Optionally, the power board cover is provided with female through holes, and the main control board rear cover is provided with pin through holes corresponding to the female through holes.

[0024] In the electrical switch, if a second magnet is provided on the pressing operation end, after the first pressing operation end of the key cap is pressed to the first switch operation state, the switch element action corresponding to the first pressing operation end can be triggered. After the pressure on the first pressing operation end is removed, the key cap returns to the intermediate state under the action of the repulsive force between the first magnet and the second magnet.

[0025] The first magnet and the second magnet in the same mutually exclusive magnet pair repel each other, and the repulsive force between the two will not weaken as the number of times the key cap is used increases. Therefore, the key cap provided with the mutually exclusive magnet pair is easier to reset to the intermediate state and maintain the intermediate state. In other words, in the electrical switch provided by the embodiment of the utility model, the reset effect of the key cap will not decrease or fail with the extension of the use time, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The utility model is further described below in conjunction with the accompanying drawings:

[0027] Figure 1 is a schematic diagram of an embodiment of the electrical switch provided by the utility model, wherein a key cap is removed;

[0028] Figure 2 is a schematic cross-sectional view showing an electrical switch in an intermediate state;

[0029] Figure 3 is a schematic cross-sectional view showing the electrical switch in a first switch operating state;

[0030] Figure 4 It is a schematic diagram showing the disassembled state of the power board cover and the main control board rear cover;

[0031] Figure 5 is a cross-sectional schematic diagram of an electrical switch showing the combined state of a power board cover and a main control board rear cover;

[0032] Figure 6 is a schematic diagram showing another embodiment of the electrical switch provided by the utility model, wherein a key cap is removed;

[0033] Figure 7 It is a display Figure 6 A schematic cross-sectional view of an electrical switch shown in ;

[0034] Figure 8 Is displayed for Figure 6 A schematic diagram of an embodiment of a middle frame of an electrical switch shown in ;

[0035] Fig. 9 is a schematic diagram showing another embodiment of the electrical switch provided by the utility model, wherein a button cap is removed;

[0036] Fig.10 Is displayed for Fig. 9 Schematic diagram of one embodiment of a middle frame of an electrical switch shown in .

[0037] Description of Reference Numerals

[0038] 100, middle frame; 200, switch member; 300, button cap; 310, first pressing operation end; 320, second pressing operation end; 311, first elastic hook; 312, first slot; 313, first edge; 321, second elastic hook; 322, second slot; 323, second edge; 350, elastic pivot slot; 360, pivot axis; 410, first magnet; 420, second magnet; 500, support member; 600, power board cover; 710, third magnet; 720, fourth magnet; 810, female header; 820, pin header; 900, bottom shell; 110, bottom plate of middle frame; 120, middle frame fence; 910, back cover of main control board. DETAILED DESCRIPTION

[0039] The following is a detailed description of embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments in the implementation manner are intended to be used to explain the present invention and should not be construed as limiting the present invention.

[0040] References to "one embodiment" or "an example" or "an example" in this specification mean that a particular feature, structure, or characteristic described in conjunction with the embodiment itself may be included in at least one embodiment disclosed in the present utility model. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0041] The utility model provides an electrical switch, such as Figure 1 , Figure 2 As shown, the electrical switch includes a middle frame 100, a plurality of switch elements 200 and at least one key cap 300, each key cap 300 corresponds to at least one switch element 200, and the switch element 200 penetrates the bottom plate 110 of the middle frame 100 along the thickness direction of the bottom plate 110 of the middle frame 100. By pressing the switch element 200, the power supply can be turned on or off.

[0042] The button cap 300 includes at least one pressing operation end and a connecting portion 330 connected to the pressing operation end, at least one of the pressing operation ends corresponds to a switch component 200, and the connecting portion 330 is pivotally connected to the middle frame 100 so that the button cap can switch between a switch operation state and an intermediate state. In the switch operation state, one of the pressing operation ends presses the corresponding switch component 200, and in the intermediate state, the pressing operation end corresponding to the switch component 200 is separated from the corresponding switch component 200.

[0043] The electrical switch also includes a mutually exclusive pair of magnets, and at least one switch element 200 corresponds to the mutually exclusive pair of magnets. The mutually exclusive pair of magnets includes a first magnet 410 and a second magnet 420. The first magnet 410 is arranged on the bottom plate 110 of the middle frame 100, and the second magnet 420 is arranged on the pressing operation end corresponding to the switch element 200. The relative parts of the first magnet 410 and the second magnet 420 in the mutually exclusive pair of magnets have the same polarity.

[0044] For the pressing operation end provided with the first magnet 410, in the absence of external force pressing, the first magnet 410 and the second magnet 420 repel each other, and the pressing operation end will not press the corresponding switch member 200. When there is an external force pressing the pressing operation end, the external force is large enough to overcome the repulsive force generated by the first magnet 410 and the second magnet 420, and the pressing operation end can press the corresponding switch member 200 (that is, enter the switch operation state).

[0045] The first magnet 410 and the second magnet 420 in the same mutually exclusive magnet pair repel each other, and the repulsive force between the two will not weaken as the number of times the key cap 300 is used increases. Therefore, the key cap 300 provided with the mutually exclusive magnet pair is easier to reset to the intermediate state and maintain the intermediate state. In other words, in the electrical switch provided by the embodiment of the utility model, the reset effect of the key cap will not decrease or fail with the extension of the use time, thereby improving the user experience.

[0046] In the embodiment of the present utility model, there is no special limitation on the specific type of "magnet", as long as it is a permanent magnet. For example, "magnet" can be a magnet. Figures 1 to 3 In the specific implementation shown in , the N pole of the first magnet 410 is opposite to the N pole of the second magnet 420, but the embodiments of the utility model are not limited to this. For example, it can also be set that the S pole of the first magnet 410 is opposite to the S pole of the second magnet 420.

[0047] In the embodiment of the present utility model, there is no special limitation on the number of switch components 200 corresponding to the key cap 300. For example, a rectangular key cap 300 may correspond to one switch component 200 or two switch components 200.

[0048] Similarly, in the embodiment of the utility model, there is no special limitation on the number and specific positions of the mutually exclusive pairs of magnets. A second magnet 420 may be provided for each pressing operation end corresponding to a switch, or a second magnet 420 may be provided for one or more pressing operation ends corresponding to a switch.

[0049] In the embodiment of the utility model, there is no special limitation on the number of pressing operation ends of a button cap. For example, in the embodiment shown in the figure, the pressing operation end of the button cap includes a first pressing operation end 310 and a second pressing operation end 320. Specifically, the first pressing operation end 310, the connecting portion 330 and the second pressing operation end 320 are arranged in sequence. In other words, the first pressing operation end 310 and the second pressing operation end 320 are respectively located at the two ends of the connecting portion 330.

[0050] In this embodiment, the first pressing operation end 310 corresponds to the switch member 200, and whether the second pressing operation end 320 corresponds to the switch member 200 is not limited. The first pressing operation end 310 is provided with a second magnet 420, and accordingly, the switch operation state includes a first switch operation state, in which the first pressing operation end 310 presses the corresponding switch member 200.

[0051] As described above, the second magnet 420 is disposed on the first pressing operation end 310, and then the first magnet 410 is also disposed at a position corresponding to the second magnet 420 on the bottom plate 110 of the middle frame 100. By correspondingly arranging the first magnet 410 and the second magnet 420 at the first pressing operation end 310, it can be ensured that the first pressing operation end 310 remains in an intermediate state away from the corresponding switch member 200 when there is no pressing force.

[0052] It should be pointed out that the “intermediate state” here refers to a state in which the switch element 200 is not pressed. In the intermediate state, the outer surface of the key cap may not be strictly parallel to the bottom plate 110 of the middle frame 100 .

[0053] As an optional embodiment, the second pressing operation end 320 also corresponds to a switch member 200. In the first switch operation state, the second pressing operation end 320 is separated from the corresponding switch member 200. In addition, the switch operation state includes a second switch operation state, in which the second pressing operation end 320 presses the corresponding switch member 200, and the first pressing operation end 310 is separated from the corresponding switch member 200.

[0054] That is to say, the first pressing operation end 310 and the second pressing operation end 320 correspond to corresponding switch members 200 respectively, and the connecting portion 330 is pivotally connected to the middle frame 100 so that the button cap 300 can switch between the first switch operation state, the second switch operation state and the intermediate state.

[0055] like Figure 3 As shown, in the first switch operation state, the first pressing operation end 310 presses the corresponding switch element 200 , and the second pressing operation end 320 is separated from the corresponding switch element 200 .

[0056] In the second switch operation state, the second pressing operation end 320 presses the corresponding switch element 200 , and the first pressing operation end 310 is separated from the corresponding switch element 200 .

[0057] like Figure 2 As shown, in the intermediate state, there is no pressure between the first pressing operation end 310 and the second pressing operation end 320 and the corresponding switch member 200, so the switch member 200 corresponding to the first pressing operation end 310 and the switch member corresponding to the second pressing operation end 320 are not triggered.

[0058] In the implementation of the utility model, the electrical switch further includes a pair of mutually exclusive magnets, and the first pressing operation end 310 and / or the second pressing operation end 320 of at least one button cap 300 corresponds to the pair of mutually exclusive magnets. Figures 1 to 3 As shown, the magnet mutually repelling pair includes a first magnet 410 and a second magnet 420 with the same polarity, the first magnet 410 is arranged on the middle frame, and the second magnet 420 is arranged on the key cap 300. In this case, when the key cap 300 is in the middle state, the moment of the magnet repulsion force received by the first pressing operation end 310 relative to the pivot axis is the same as the moment of the magnet repulsion force received by the second pressing operation end 320 relative to the pivot axis.

[0059] A second magnet 420 is provided on the first pressing operation end 310. When the first pressing operation end 310 of the key cap 300 is pressed to the first switch operation state, the switch member 200 corresponding to the first pressing operation end 310 can be triggered to operate. After the pressure on the first pressing operation end 310 is removed, the key cap 300 returns to the middle state under the action of the repulsive force between the first magnet 410 and the second magnet 420.

[0060] It is easy to understand that when the same magnetic poles are facing each other, the closer the distance between the two magnets, the greater the repulsion between them. In the embodiment of the present invention, the distance between the second magnet on the first pressing operation end 310 and the pivot is l1, and the distance between the second magnet on the second pressing operation end 320 and the pivot is L2.

[0061] In the first switch operation state, the distance between the second magnet 420 on the first push operation end 310 and the first magnet 410 at the corresponding position on the bottom plate 110 is d1, and the magnetic repulsion force on the first push operation end 310 is f1. In the intermediate state, the distance between the second magnet 420 on the first push operation end 310 and the first magnet 410 at the corresponding position on the bottom plate 110 is d2, and the magnetic repulsion force on the first push operation end 310 is f2. In the embodiment of the utility model, d1<d2, obviously f1>f2.

[0062] In the first switch operation state, the distance between the second magnet 420 on the second pressing operation end 320 and the first magnet 410 at the corresponding position on the bottom plate 110 is D1, and the magnetic repulsion force on the second pressing operation end 320 is F1. In the intermediate state, the distance between the second magnet 420 on the second pressing operation end 320 and the first magnet 410 at the corresponding position on the bottom plate 110 is D2, and the magnetic repulsion force on the second pressing operation end 320 is F2. In the embodiment of the utility model, D1>D2, and obviously F1<F2.

[0063] As described above, in the intermediate state, the moment of the magnetic repulsion force on the first pressing operation end 310 relative to the pivot axis is the same as the moment of the magnetic repulsion force on the second pressing operation end 320 relative to the pivot axis, that is, f2*l1=F2*L2.

[0064] At the moment when the pressure on the first pressing operation end 310 is removed, the torque of the magnetic repulsion force on the first pressing operation end 310 relative to the pivot is f1*l1, and the torque of the magnetic repulsion force on the second pressing operation end 320 relative to the pivot is F1*L2. Obviously, f1*l1>F1*L2, the torque is not balanced, and the key cap 300 will rotate around the pivot. As the first pressing operation end 310 moves further and further away from the bottom plate 110 and the second pressing operation end 320 moves closer and closer to the bottom plate 110, it finally reaches the intermediate state of f2*l1=F2*L2.

[0065] Similarly, a second magnet 420 is provided on the second pressing operation end 320. When the second pressing operation end 320 of the key cap 300 is pressed to the second switch operation state, the switch member 200 corresponding to the second pressing operation end 320 can be triggered to operate. After the pressure on the second pressing operation end 320 is removed, the key cap 300 returns to the middle state under the action of the repulsive force between the first magnet 410 and the second magnet 420.

[0066] In the second switch operation state, the distance between the second magnet 420 on the second pressing operation end 320 and the first magnet 410 at the corresponding position on the bottom plate 110 is D3, and the magnetic repulsion force on the second pressing operation end 320 is F3. In the embodiment of the utility model, D3<D1, and obviously F3>F1.

[0067] In the second switch operation state, the distance between the second magnet 420 on the first pressing operation end 310 and the first magnet 410 at the corresponding position on the bottom plate 110 is d3, and the magnetic repulsion force on the first pressing operation end 310 is f3. In the embodiment of the utility model, d3>d1, obviously f3<f1.

[0068] At the moment when the pressure on the second pressing operation end 320 is removed, the torque of the magnetic repulsion force on the second pressing operation end 320 relative to the pivot is F3*L2, and the torque of the magnetic repulsion force on the first pressing operation end 310 relative to the pivot is f3*l1. Obviously, F3*L2>f3*l1, the torque is not balanced, and the key cap 300 will rotate around the pivot. As the second pressing operation end 320 moves further and further away from the bottom plate 110 and the first pressing operation end 310 moves closer and closer to the bottom plate 110, it finally reaches the intermediate state of f2*l1=F2*L2.

[0069] In the embodiment of the utility model, the second magnet 420 can be set at the first pressing operation end 310 and the second pressing operation end 320 of the button cap 300, and accordingly, the first magnet 410 corresponding to the second magnet 420 is also set at the corresponding position of the middle frame 100.

[0070] Of course, in the embodiment of the utility model, a magnet mutually repelling pair may be provided for one of the first pressing operation end 310 and the second pressing operation end 320, and a support member 500 may be provided on the other of the first pressing operation end 310 and the second pressing operation end 320. This situation will be described and illustrated below, and will not be repeated here.

[0071] In order to improve the structural stability of the electrical switch, as an optional implementation, Figure 2 and Figure 3 As shown, the button cap 300 may further include a first elastic hook 311 disposed at the first pressing operation end 310 , and a second elastic hook 321 disposed at the second pressing operation end 320 .

[0072] Correspondingly, a first slot 312 is provided on the bottom plate 110 of the middle frame 100 at a position opposite to the first elastic hook 311, and a first edge 313 extending toward the middle of the first slot 312 is provided at the opening of the first slot 312; a second slot 322 is provided on the bottom plate 110 of the middle frame 100 at a position corresponding to the second elastic hook 321, and a second edge 323 extending toward the middle of the second slot 322 is provided at the opening of the second slot 322.

[0073] When the button cap 300 is in the first switch operation state, the first elastic hook 311 is inserted into the first latching groove 312 and does not contact the first latching edge 313 .

[0074] When the button cap 300 is in the second switch operation state, the second elastic hook 321 is inserted into the second latching groove 322 and does not contact the second latching edge 323 .

[0075] When the button cap 300 is in the middle state, the first elastic hook 311 is inserted into the first slot 312 and is limited by the first edge 313, and the second elastic hook 321 is inserted into the second slot 322 and is limited by the second edge 323. In the embodiment of the utility model, the limitation of the first edge 313 can prevent the first elastic hook 311 from falling out of the first slot 312; the limitation of the second edge 323 can prevent the second elastic hook 321 from falling out of the second slot 322.

[0076] In addition, the provision of an "elastic hook" and a "card edge" can also prevent the pressing operation end from causing overpressure on the switch member 200 at the corresponding position, and can also prevent other pressing operation ends from falling out. Specifically, when pressure is applied to the first pressing operation end 310, the first pressing operation end 310 moves toward the bottom plate 110 of the middle frame 100, and the second pressing operation end 320 moves away from the bottom plate 110 of the middle frame 100. During the movement, the second elastic hook 321 of the second pressing operation end 320 will clamp the second card edge 323, so that even if pressure continues to be applied to the first pressing operation end 310, the displacement of the second pressing operation end 320 is limited, thereby avoiding overpressure on the switch member 200 at the first pressing operation end 310.

[0077] Similarly, when pressure is applied to the second pressing end 320, the second pressing end 320 moves toward the bottom plate 110 of the middle frame 100, and the first pressing end 310 moves away from the bottom plate 110 of the middle frame 100. During the movement, the first elastic hook 311 of the first pressing end 310 will clamp the first clamping edge 313, so that even if pressure continues to be applied to the second pressing end 320, the displacement of the second pressing end 320 is limited, thereby avoiding overpressure on the switch member 200 at the second pressing end 320.

[0078] In order to perform a pressing operation on the switch member 200, the button cap 300 further includes a first pressing protrusion 331 and a second pressing protrusion 332. The first pressing protrusion 331 is arranged on the first pressing operation end 310 and protrudes toward the switch member 200 corresponding to the first pressing operation end 310. The second pressing protrusion 332 is arranged on the second pressing operation end 320 and protrudes toward the switch member 200 corresponding to the second pressing operation end 320.

[0079] By pressing the first pressing operating end 310, the first pressing protrusion 331 can be driven to squeeze the switch member 200 opposite to the first pressing protrusion 331, and a corresponding switching action can be performed; by pressing the second pressing operating end 320, the second pressing protrusion 332 can be driven to squeeze the switch member 200 opposite to the second pressing protrusion 332, and a corresponding switching action can be performed.

[0080] In the embodiment of the utility model, there is no special limitation on the specific setting position of the mutually exclusive pair of magnets. In order to better maintain the electrical switch in the intermediate state, the second magnet 420 on the first pressing operation end 310 is located on the side of the first elastic hook 311 close to the first pressing protrusion 331, and the second magnet 420 on the second pressing operation end 320 is located on the side of the second elastic hook 321 close to the second pressing protrusion 332.

[0081] In the embodiment of the utility model, there is no special limitation on the specific position and number of the first magnet 410 and the second magnet 420 in the magnet mutually repelling pair, as long as the torque generated by the repulsive force on the first pressing operation end 310 is the same as the torque generated by the repulsive force on the second pressing operation end. Figure 1 In the embodiment shown in , the number of the second magnets 420 on the first pressing operation end 310 is the same as the number of the first elastic hooks 311, and the setting positions also match. The number of the second magnets 420 on the second pressing operation end 320 is the same as the number of the second elastic hooks 321, and the setting positions also match. Similarly, the number of the first magnets 410 on the bottom plate 110 of the middle frame is the same as the number of the second magnets 420 on the key cap 300, one-to-one. It should be pointed out that in order to maintain the left-right balance of the key cap 300, the multiple second magnets arranged on the key cap 300 can be symmetrical about the midline of the width direction of the key cap 300. Furthermore, in order to facilitate the procurement and management of materials, the multiple second magnets arranged on the key cap 300 can also be symmetrical about the midline of the length direction of the key cap 300.

[0082] Of course, the present invention is not limited thereto. For example, a second magnet 420 may be disposed between the two first elastic hooks 311, and the second magnet 420 is symmetrical about the width midline of the key cap 300. Accordingly, a first magnet 410 matching the position and size of the second magnet 420 is disposed on the bottom plate 110 of the middle frame.

[0083] In the embodiment of the utility model, there is no special limitation on the pivotable connection between the key cap 300 and the middle frame 100. For example, the pivotable connection between the key cap 300 and the middle frame 100 can be achieved by setting a hinge axis.

[0084] In order to make the electrical switch more beautiful and facilitate the removal of the button cap 300, optionally, an elastic pivot slot 350 and one of the pivot shafts 360 are formed on the side of the connecting portion 330 facing the bottom plate 110 of the middle frame 100, and an elastic pivot slot 350 and the other of the pivot shaft 360 are formed on the side of the bottom plate 110 of the middle frame 100 facing the connecting portion 330, and a part of the pivot shaft 360 is movably arranged in the elastic pivot slot 350.

[0085] In the embodiment of the utility model, the elastic pivoting slot 350 is made of a material that can be elastically deformed. The elastic pivoting slot 350 is a ring-shaped member with a gap. In the absence of external force, the gap of the elastic pivoting slot 350 is smaller than the diameter of the pivot shaft 360, and the diameter of the elastic pivoting slot 350 is slightly larger than the diameter of the pivot shaft 360. The pivot shaft 360 can be pressed into the gap of the elastic pivoting slot 350 and enter the elastic pivoting slot 350 by pressing, squeezing, etc., and similarly, the pivot shaft 360 can be pulled out of the elastic pivoting slot 350 by pulling, etc.

[0086] In the embodiment of the utility model, in order to improve safety, the main control part (main control part includes key cap) and the strong current part of the electrical switch are separated. Figure 4 As shown, the middle frame 100 may include a middle frame fence 120 surrounding the bottom plate 110 of the middle frame. Figure 5 As shown, the electrical switch further includes a main control board 930 , a main control board rear cover 910 , a power board cover 600 , a power board and a bottom shell 900 .

[0087] The middle frame fence 120 is connected to the flange of the bottom shell, and the main control board back cover 910, the power board cover 600, and the power board are stacked in sequence in the middle frame fence 120, the bottom plate 110 of the middle frame, and the space defined by the flange of the bottom shell, and the button cap 300 and the power board cover 600 are respectively located on both sides of the bottom plate 110 of the middle frame 100.

[0088] In order to reliably and stably connect the power board cover 600 to the main control board back cover 910, optionally, the electrical switch also includes a magnet attraction pair, the magnet attraction pair includes a third magnet 710 and a fourth magnet 720, the third magnet 710 is arranged on the main control board back cover 910, the fourth magnet 720 is arranged on the power board cover 600, and the third magnet 710 and the fourth magnet 720 of the same magnet attraction pair have different poles facing each other, and the third magnet and the fourth magnet have opposite polarities. The third magnet 710 and the fourth magnet 720 in the same magnet attraction pair attract each other and fix the power board cover 600 to the main control board back cover 910.

[0089] In the above-mentioned utility model embodiment, the power board cover 600 is fixedly connected to the main control board back cover 910 by magnetic force, and the power board cover 600 can be separated from the main control board back cover 910 by pulling with force, so that there is no need to reserve a disassembly opening on the electrical switch, which improves the safety of the electrical switch and makes the electrical switch easier to maintain.

[0090] As an optional embodiment, a female through hole is provided on the power board cover 600, and a pin through hole corresponding to the female through hole is provided on the main control board rear cover 910. Accordingly, the female 810 can pass through the female through hole, the pin 820 can pass through the pin through hole, and the pin 820 is inserted into the female 810.

[0091] In the embodiment of the utility model, when assembling the main control board rear cover 910 and the power board cover 600, the female header 810 and the pin header 820 can also play a role in foolproof positioning.

[0092] In order to make the electrical switch more beautiful and improve the stability of the electrical switch structure, optionally, a key groove is formed on the end surface of the middle frame fence 120 facing the key cap 300, and the side wall of the key cap 300 can be inserted into the key groove.

[0093] When installing the electrical switch, the bottom housing 900 is installed into the reserved installation hole on the wall.

[0094] As an optional embodiment, a support member can be provided on the side of the key cap that does not need to be pressed to reduce the number of magnets. Specifically, the first pressing operation end 310 of the key cap 300 is provided with a switch member 200, which is the side that needs to be pressed, and the second pressing operation end 320 of the key cap 300 is not provided with a switch member, which is the side that does not need to be pressed. A support member 500 is provided on the second pressing operation end 320. When the key cap 300 is in the middle state, the first pressing operation end 310 is subjected to a repulsive force, and the support member 500 is supported on the bottom plate 110 of the middle frame 100, which can maintain the key cap 300 in the middle state and avoid false touches.

[0095] exist Figure 6 In the illustrated embodiment, the electrical switch includes three button caps 300, one of the first pressing operation end 310 and the second pressing operation end 320 of the button cap 300 corresponds to the mutually repelling pair of magnets, and the other of the first pressing operation end 310 and the second pressing operation end 320 of the button cap 300 is provided with a support member 500.

[0096] In an electrical switch including three button caps, only one end needs to be pressed to trigger. Therefore, one end of the button cap can be supported by a support member 500 and a middle frame to balance the magnetic repulsion of the magnet at the other end, thereby achieving the purpose of reducing costs and avoiding accidental touches.

[0097] In the embodiment of the utility model, there is no special limitation on the number of the key caps 300 in the electrical switch and the number of the mutually exclusive pairs of magnets corresponding to each key cap 300. Figure 1In the embodiment shown, the electrical switch includes two key caps 300, each key cap 300 is provided with four second magnets 420, specifically, the first pressing operation end 310 is provided with two second magnets 420, and the second pressing operation end 320 is provided with two second magnets 420. Figure 1 As shown in FIG. 1 , four first magnets 410 are arranged on the middle frame 100 corresponding to each key cap 300 .

[0098] Figure 6 and Fig. 9 In the embodiment shown in , the electrical switch includes three key caps 300. Figure 6 and Figure 7 In the embodiment shown in , only two second magnets 420 are arranged on the second pressing operation end 320 of each key cap, and a support member 500 is arranged on the first pressing operation end of the key cap. Figure 8 As shown in , a total of 6 first magnets 410 are arranged on the middle frame at positions corresponding to the second pressing operation ends.

[0099] exist Fig. 9 In the embodiment shown in , each key cap 300 is provided with four second magnets 420. Specifically, the first pressing operation end 310 is provided with two second magnets 420, and the second pressing operation end 320 is provided with two second magnets 420. Fig.10 As shown in FIG. 1 , four first magnets 410 are arranged on the middle frame 100 corresponding to each key cap 400 .

[0100] As an optional embodiment, the first magnet 410 and the second magnet 420 have the same specifications, so that the types and specifications of materials can be simplified, and the procurement cost and management cost can be reduced. Further, the third magnet 710 and the fourth magnet 720 have the same specifications. Further, the first magnet 410, the second magnet 420, the third magnet 710, and the fourth magnet 720 have the same specifications. Thereby, the types and specifications of materials can be further simplified, and the procurement cost and management cost can be reduced.

[0101] Furthermore, in the embodiment of the utility model, the middle frame 100 can be set as a standard part, and a plurality of magnet installation positions can be reserved on the middle frame 100 , and the specific installation position on the second magnet 100 can be determined according to the specific type of the button cap.

[0102] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. An electrical switch, comprising a middle frame (100), at least one switch element (200) and at least one key cap (300), each key cap (300) corresponding to at least one switch element (200), the switch element (200) penetrating the bottom plate (110) of the middle frame (100) along the thickness direction of the bottom plate (110) of the middle frame, The key cap (300) comprises at least one pressing operation end and a connecting portion (330) connected to the pressing operation end, at least one of the pressing operation ends corresponds to a switch member (200), and the connecting portion (330) is pivotally connected to the middle frame (100) so that the key cap can be switched between a switch operation state and an intermediate state, in which one of the pressing operation ends presses the corresponding switch member (200), and in the intermediate state, the pressing operation end corresponding to the switch member (200) is separated from the corresponding switch member (200). It is characterized in that The electrical switch also includes a mutually exclusive pair of magnets, at least one of the switch components (200) corresponds to the mutually exclusive pair of magnets, the mutually exclusive pair of magnets includes a first magnet (410) and a second magnet (420), the first magnet (410) is arranged on a bottom plate of the middle frame (100), the second magnet (420) is arranged on a pressing operation end corresponding to the switch component (200), and the opposite parts of the first magnet (410) and the second magnet (420) in the mutually exclusive pair of magnets have the same polarity.

2. The electrical switch according to claim 1, characterized in that The pressing operation end of the button cap comprises a first pressing operation end (310) and a second pressing operation end (320), the first pressing operation end (310), the connecting portion (330) and the second pressing operation end (320) are arranged in sequence, the first pressing operation end (310) corresponds to the switch element (200), and the second magnet (420) is arranged on the first pressing operation end (310); The switch operation state includes a first switch operation state, in which the first pressing operation end (310) presses the corresponding switch element (200).

3. The electrical switch according to claim 2, characterized in that The second pressing operation end (320) corresponds to the corresponding switch element (200), In the first switch operation state, the second pressing operation end (320) is separated from the corresponding switch member (200); The switch operation state comprises a second switch operation state, in which the second pressing operation end (320) presses the corresponding switch member (200), and the first pressing operation end (310) is separated from the corresponding switch member (200).

4. The electrical switch according to claim 3, characterized in that The button cap (300) further comprises a first elastic hook (311) arranged at the first pressing operation end (310), and a second elastic hook arranged at the second pressing operation end (320); a first card slot is arranged at a position on the bottom plate (110) of the middle frame opposite to the first elastic hook (311); a first card edge extending toward the middle of the first card slot is arranged at the opening of the first card slot; a second card slot is arranged at a position on the bottom plate of the middle frame corresponding to the second elastic hook; a second card edge extending toward the middle of the second card slot is arranged at the opening of the second card slot; When the button cap is in a first switch operation state, the first elastic hook (311) is inserted into the first clamping groove and does not contact the first clamping edge, and the second elastic hook contacts the second clamping edge; When the button cap is in the second switch operation state, the second elastic hook is inserted into the second clamping groove and does not contact the second clamping edge, and the first elastic hook contacts the first clamping edge; When the button cap is in the middle state, the first elastic hook (311) is inserted into the first slot and is limited by the first edge, and the second elastic hook is inserted into the second slot and is limited by the second edge.

5. The electrical switch according to claim 4, characterized in that The button cap (300) further comprises a first pressing protrusion (331) and a second pressing protrusion (332); the first pressing protrusion (331) is arranged on the first pressing operation end (310) and protrudes toward a switch member (200) corresponding to the first pressing operation end (310); and the second pressing protrusion (332) is arranged on the second pressing operation end (320) and protrudes toward a switch member (200) corresponding to the second pressing operation end (320).

6. The electrical switch according to claim 5, characterized in that The second magnet on the first pressing operation end (310) is located on a side of the first elastic hook (311) close to the first pressing protrusion (331), and the second magnet (420) on the second pressing operation end (320) is located on a side of the second elastic hook close to the second pressing protrusion (332).

7. The electrical switch according to claim 2, characterized in that A support member (500) is provided on a surface of one side of the second pressing operation end (320) facing the bottom plate of the middle frame.

8. The electrical switch according to any one of claims 1 to 7, characterized in that One of the elastic pivoting slot (350) and the pivoting shaft (360) is formed on one side of the connecting portion facing the bottom plate of the middle frame, and the other of the elastic pivoting slot (350) and the pivoting shaft (360) is formed on one side of the bottom plate of the middle frame facing the connecting portion, and a part of the pivoting shaft (360) is movably arranged in the pivoting slot (350).

9. The electrical switch according to any one of claims 1 to 7, characterized in that The middle frame further comprises a middle frame fence (120) arranged around the bottom plate (110) of the middle frame (100); the electrical switch further comprises a main control board (930), a main control board back cover (910), a power board cover (600), a power board and a bottom shell (900); the middle frame fence (120) is connected in cooperation with the flange of the bottom shell; the main control board back cover (910), the power board cover (600) and the power board are sequentially stacked in the space defined by the middle frame fence (120), the bottom plate (110) and the flange of the bottom shell; and the button cap (300) and the power board cover (600) are respectively located on both sides of the bottom plate (110) of the middle frame; The electrical switch also includes a magnet pair that attracts each other, and the magnet pair includes a third magnet (710) and a fourth magnet (720), wherein the third magnet (710) is arranged on the back cover (910) of the main control board, and the fourth magnet (720) is arranged on the cover plate of the power board, and the polarities of the parts of the third magnet and the fourth magnet that are opposite to each other in the same magnet pair are opposite.

10. The electrical switch according to claim 9, characterized in that The power board cover plate (600) is provided with a female through hole, and the main control board rear cover (910) is provided with a pin through hole corresponding to the female through hole.

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