A switch device

Abstract

The present invention is applicable to the field of electrical connection technology, and in particular relates to a switch device, comprising: a fixing frame provided with a cavity, the cavity having an opening, a switch provided at the cavity opening; a bracket, the bracket being provided at the cavity opening and on the side of the switch facing away from the cavity; the bracket comprising a fixing portion, a trigger portion provided opposite to the switch, and a plurality of pressure portions extending and diverging along the plane direction of the trigger portion; the trigger portion, the pressure portion, and the fixing portion having a gap and being elastically connected as one, the trigger portion moving under pressure and triggering the switch to be turned on and off; the free end of the pressure portion tilting in a direction away from the switch; a button, which is on the side of the bracket facing away from the switch and supported by the free end of the pressure portion. The overall structure of the switch device is simple and reliable, and there is no dead angle on the button surface. By pressing any position on the button surface, the on and off of the circuit board can be controlled.

Description

Technical Field

[0001] The present invention is applicable to the technical field of electrical connection, and in particular relates to a switch device. Background Art

[0002] With the improvement of people's living standards, the widespread use of electronic products, and the popularization of the Internet, the functions of switches and sockets have gradually evolved from traditional mechanical switches to electronic smart home devices. In recent years, smart switches have been changing with each passing day, gradually replacing traditional mechanical switches and becoming an indispensable part of life. Among smart switch products, micro switches are widely used due to their simple structure, sensitivity, long life, and small size.

[0003] Micro switches often have at least one contact point below a key panel. When a user presses the key panel, the contact point is triggered, opening or closing the circuit. However, current micro switches cannot trigger the contact point by simply pressing any point on the key panel. Users must find the corresponding pressing point on the key panel and press it to open or close the circuit, significantly affecting user experience. Furthermore, if users are operating blindly, they must repeatedly touch and search to accurately find the pressing point, resulting in a poor user experience. Summary of the Invention

[0004] An embodiment of the present invention provides a switch device, which aims to solve the problem that the existing switch device cannot realize circuit switching by pressing any position on the button surface.

[0005] The embodiment of the present invention is implemented as follows: a switch device is provided, comprising:

[0006] A fixing frame is provided with a cavity, wherein the cavity has an opening, and a switch is provided at the cavity opening;

[0007] A bracket is disposed at the opening of the cavity and on a side of the switch facing away from the cavity; the bracket includes a fixed portion, a trigger portion disposed opposite the switch, and a plurality of divergently arranged pressing portions extending along the plane of the trigger portion; the trigger portion, the pressing portion, and the fixed portion are elastically connected to each other with a gap therebetween, the trigger portion moving under pressure to trigger the switch to open and close; the free end of the pressing portion tilts away from the switch;

[0008] A button is connected to a side of the bracket away from the switch and is supported by the free end of the pressing portion.

[0009] Furthermore, a boss is provided on the surface of the trigger portion opposite to the switch, and the boss is adapted to the switch.

[0010] Furthermore, the pressing portion is Z-shaped and is formed by integrally extending and bending the edge of the trigger portion.

[0011] Furthermore, a reinforcing rib is provided at the bending portion of the pressing portion.

[0012] Furthermore, there are four pressing portions, which extend toward four corners of the switch device respectively.

[0013] Furthermore, the bracket also includes a plurality of elastic connecting parts, one end of each elastic connecting part is connected to the fixing part, and the other end is connected to the pressing part or the triggering part, so that the triggering part, the pressing part and the fixing part are elastically connected as one.

[0014] Furthermore, the elastic connecting portion is connected to the non-free end side of the pressing portion.

[0015] Furthermore, the elastic connecting portion is arc-shaped.

[0016] Furthermore, the pressing portion is provided with a first positioning hole, and the button is provided with a first positioning column which is interference-fitted with the first positioning hole.

[0017] Furthermore, a rotating shaft is provided on each side of the fixing portion, and an axis hole adapted to the rotating shaft is provided on the button.

[0018] The embodiment of the present invention provides a trigger portion elastically connected to the fixed portion and several divergently arranged pressing portions on the bracket, and the free ends of the pressing portions are tilted away from the switch to support the key. When any position on the key surface is pressed, the external force can be transmitted from the key to the pressing portion, and then from the pressing portion to the trigger portion, so that the trigger portion can press the switch that is arranged opposite to it to realize the opening and closing of the circuit. The overall structure of the switch device is simple and reliable, and the on and off of the circuit can be controlled by pressing any position on the key surface, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a switch device provided by an embodiment of the present invention;

[0020] Figure 2 is an exploded view of a switch device provided by an embodiment of the present invention;

[0021] Figure 3 is a cross-sectional view of a switch device provided by an embodiment of the present invention;

[0022] Figure 4 is a cross-sectional view of the assembly of a key and a bracket provided by an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of a bracket provided in an embodiment of the present invention;

[0024] Figure 6 Schematic diagram of a key provided by an embodiment of the present invention.

[0025] In the figure, 1. fixing frame; 11. cavity; 12. first limiting part; 13. second slot; 2. circuit board assembly; 21. second limiting part; 3. pressure plate; 31. through hole; 32. second buckle; 4. bracket; 41. fixing part; 411. first slot; 412. supporting part; 413. rotating shaft; 42. triggering part; 421. boss; 422. second positioning hole; 43. pressing part; 431. first positioning hole; 44. elastic connecting part; 5. panel; 6. button; 61. first buckle; 62. first positioning column; 63. second positioning column; 64. shaft hole; 65. protrusion; 7. switch. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0027] The bracket 4 of the present invention includes a fixing portion 41, a trigger portion 42 arranged opposite to the switch 7, and a plurality of divergent pressing portions 43 extending along the plane direction of the trigger portion 42; the trigger portion 42, the pressing portion 43 and the fixing portion 41 have a gap and are elastically connected as a whole. The trigger portion 42 moves under pressure and triggers the switch 7 to be turned on and off; the free end of the pressing portion 43 is tilted away from the switch 7 to support the button 6. The embodiment of the present invention provides a trigger portion 42 elastically connected to the fixing portion 41 and a plurality of divergent pressing portions 43 on the bracket 4, and tilts the free end of the pressing portion 43 away from the switch 7 to support the button 6. When any position on the surface of the button 6 is pressed, the external force can be transmitted from the button 6 to the pressing portion 43, and then transmitted to the trigger portion 42 by the pressing portion 43, so that the trigger portion 42 can press the switch 7 arranged opposite to it to realize the opening and closing of the circuit. The overall structure of the switch device is simple and reliable, and the on and off of the circuit can be controlled by pressing any position on the surface of the button 6, thereby improving the user experience.

[0028] Example 1

[0029] like Figure 1-Figure 5 As described above, an embodiment of the present invention provides a switch device, including a fixing frame 1, a circuit board assembly 2, a pressure plate 3, a bracket 4, a panel 5, a button 6 and a switch 7.

[0030] The mounting frame 1 has a cavity 11 with an opening. The circuit board assembly 2 is disposed within the cavity 11 and secured thereto by a pressure plate 3. A switch 7 is mounted on the circuit board assembly 2 and positioned at the opening of the cavity 11. Since the switch 7 needs to be exposed for easy pressing, a through hole 31 is provided in the middle of the pressure plate 3 to provide clearance for the opening. The switch 7 extends from this through hole 31. A panel 5 is mounted at the opening of the cavity 11 of the mounting frame 1 to cover the mounting frame 1 and limit the position of the bracket 4. The panel 5 can be secured to the mounting frame 1 by means of a hook-and-loop fastener.

[0031] A second clip 32 protrudes from the edge of the pressure plate 3, and a second slot 13 is provided in the cavity 11 of the fixing frame 1 to fit with the second clip 32. After the circuit board assembly is secured in the cavity 11, the pressure plate 3 is placed on the fixing frame 1, and the second clip 32 engages with the second slot 13, securing the pressure plate 3 to the fixing frame 1.

[0032] Cavity 11 of mounting bracket 1 is provided with a plurality of first stoppers 12, and circuit board assembly 2 is provided with a plurality of second stoppers 21 that mate with the first stoppers 12. When circuit board assembly 2 is placed in cavity 11, the first stoppers 12 cooperate with the second stoppers 21, and the retaining force of pressure plate 3 secures circuit board assembly 2 in cavity 11. For example, first stoppers 12 may be ridges provided on the sidewalls of cavity 11, while second stoppers 21 may be notches provided on circuit board assembly 2. The ridges engage with the notches to retain circuit board assembly 2 in position.

[0033] The bracket 4 is arranged at the opening of the cavity 11 and on the side of the switch 7 facing away from the cavity 11. The bracket 4 includes a fixed portion 41, a trigger portion 42 arranged opposite to the switch 7, and a plurality of divergently arranged pressing portions 43 extending along the plane of the trigger portion 42. The trigger portion 42, the pressing portion 43, and the fixed portion 41 are elastically connected to each other with a gap therebetween. The trigger portion 42 moves under pressure and triggers the switch 7 to turn on and off. The free end of the pressing portion 43 tilts away from the switch 7. The trigger portion 42 is arranged in the middle of the bracket 4. The divergent arrangement means that the plurality of pressing portions 43 are arranged in a divergent or evenly spaced arrangement around the trigger portion 42. This arrangement facilitates the more direct transmission of force exerted by one or more pressing portions 43 to the trigger portion 42, causing the trigger portion 42 to move and press the switch 7, triggering the switch 7 to turn on and off, thereby turning the circuit on and off.

[0034] In the present invention, only one switch 7 is required, positioned directly opposite the center of the trigger portion 42. The trigger portion 42 can be circular, but other shapes, such as rectangular or square, are also possible. The panel 5 and the fixing bracket 1 clamp the edges of the fixing portion 41, thereby securing the fixing portion 41 and the bracket 4. The bracket 4 can also be directly secured to the panel 5 using hooks and buckles. Numerous fixing methods are available and are not limited here.

[0035] The button 6 is connected to the side of the bracket 4 facing away from the switch 7 and is supported by the free end of the pressing portion 43. The free end of the pressing portion 43 tilts away from the switch 7 to support the button 6. A large space is provided between the free end of the pressing portion 43 and the pressure plate 3, which allows the button 6 to have a longer travel when pressed, thereby driving the trigger portion 42 to move a longer distance toward the switch 7.

[0036] The four corners of the fixing portion 41 are each provided with a first latch 411. The button 6 is provided with a first latch 61 on the side closest to the bracket 4, which fits into the first latch 411. The first latch 61 is elastic. When the first latch 61 is inserted into the first latch 411, it hooks onto the bracket 4, securing the button 6 to the bracket 4. Because the button 6 is supported by the free end of the pressing portion 43, a gap remains between the button 6 and the fixing portion 41, allowing room for movement when pressed. When the first latch 61 is released from the first latch 411, the button 6 can be removed from the bracket 4.

[0037] Furthermore, the bracket 4 further includes a plurality of elastic connecting portions 44, each of which is connected to the fixing portion 41 at one end and to the pressing portion 43 or the trigger portion 42 at the other end, thereby elastically connecting the trigger portion 42, the pressing portion 43, and the fixing portion 41. The provision of multiple elastic connecting portions 44 ensures that when each pressing portion 43 is subjected to force, the elastic reaction force exerted by the elastic connecting portion 44 is balanced, thereby preventing localized force from causing elastic fatigue and inability to reset, which would affect the product's service life and aesthetics.

[0038] Furthermore, the elastic connecting portion 44 is connected to the side of the non-free end of the pressing portion 43, so that the free end of the pressing portion 43 is farther away from the connection point of the elastic connecting portion 44, resulting in greater torque, acting as a lever, making the free end of the pressing portion 43 more sensitive. When the free end of the pressing portion 43 receives a slight force transmitted by the button 6, it can be transmitted to the trigger portion 42, thereby triggering the switch 7. This provides a better feel when the user presses the button 6, and only requires less force to complete the on-off control of the switch device. Of course, the elastic connecting portion 44 connected to the edge of the trigger portion 42 also has the above-mentioned technical effects.

[0039] The elastic connecting portion 44 is connected to the pressing portion 43 near the trigger portion 42 or directly connected to the trigger portion 42, so that the pressing portion 43 and the trigger portion 42 are equivalent to a whole, and move simultaneously under the action of external force or the elastic connecting portion 44, so that when any position of the button 6 is subjected to force, it is easier to transfer the external force to the trigger portion 42, and then touch the switch 7.

[0040] The elastic connection portion 44 is arc-shaped, which improves the strength and elastic modulus of the elastic connection portion 44 , makes the elastic connection portion 44 have greater elastic force, delays the failure of the elastic connection portion 44 due to elastic fatigue, and increases the service life of the elastic connection portion 44 .

[0041] Furthermore, when no external force is applied, the trigger portion 42 is flush with the fixed portion 41 and flush with the switch 7, and is in a pre-trigger state. A support portion 412 is provided on the fixed portion 41 of the bracket 4, which will support the pressure plate 3 when assembled into a finished product, so that the strength around the fixed portion 41 of the bracket 4 is guaranteed, and the loss of elastic kinetic energy is reduced when the trigger portion 42 in the middle is pressed.

[0042] In this embodiment of the present invention, when a user presses any position on the surface of button 6, button 6 depresses the pressing portion 43, driving the trigger portion 42 downward, causing the trigger portion 42 to contact the switch 7, thereby turning the circuit on or off. After the user releases the button, the pressing portion 43 and the trigger portion 42 elastically recover, pushing the button 6 back to its original position. When the user presses any position on the surface of button 6 again, button 6 depresses the pressing portion 43 again, driving the trigger portion 42 downward again, causing the trigger portion 42311 to contact the microswitch again, thereby turning the circuit on or off. After the user releases the button again, the pressing portion 43 and the trigger portion 42 elastically recover, pushing the button 6 back to its original position.

[0043] The embodiment of the present invention provides a trigger portion 42 elastically connected to the fixing portion 41 and a plurality of divergent pressing portions 43 on the bracket 4, and tilts the free end of the pressing portion 43 away from the switch 7 to support the button 6. When any position on the surface of the button 6 is pressed, the external force can be transmitted from the button 6 to the pressing portion 43, and then transmitted to the trigger portion 42 by the pressing portion 43, so that the trigger portion 42 can press the switch 7 arranged opposite to it to realize the opening and closing of the circuit. The overall structure of the switch device is simple and reliable, and the on and off of the circuit can be controlled by pressing any position on the surface of the button 6, thereby improving the user experience.

[0044] Example 2

[0045] like Figure 3 、 Figure 5 As shown, in an optional embodiment of the present invention, a boss 421 is provided on the surface of the trigger portion 42 opposite to the switch 7 , and the boss 421 is adapted to the switch 7 .

[0046] The switch 7 is disposed in the middle of the circuit board assembly 2, and similarly, the boss 421 is disposed in the middle of the trigger portion 42. The shapes and sizes of the two can be substantially the same, and the surface area of ​​the boss 421 can be larger or smaller than the surface area of ​​the switch 7, which is not limited here.

[0047] After the user presses the button 6, the pressing portion 43 and the trigger portion 42 move downward. As the trigger portion 42 moves downward, the boss 421 and the switch 7 contact each other, pressing the switch 7 to achieve the conduction or disconnection of the circuit.

[0048] Due to the cooperation between the boss 421 and the switch 7, the user can control the on and off of the circuit after pressing the button 6, and avoid the trigger part 42 from having insufficient displacement stroke and failing to touch the switch 7, resulting in failure to control the circuit.

[0049] When the switch device is in a stationary state, the boss 421 and the switch 7 are flush with each other and are in a pre-trigger state, which can improve the hand feel. In an embodiment of the present invention, for example, when one end of the button 6 is pressed, the button 6 rotates with the other end of the button 6 as the axis. Since the free end of the pressing portion 43 is tilted away from the switch 7, the gap between the pressing portion 43 and the pressure plate 3 can be set to 1.5mm or even more. When the downward stroke of one end of the button 6 is 1.5mm, it is calculated by the mathematical formula: 0.5*1.5=0.75mm. It can be seen that the downward stroke of the boss 421 of the trigger portion 42 located below the middle of the button 6 is 0.75mm, while the stroke of the switch 7 itself is only 0.3mm. It can be seen that after pressing any position on the surface of the button 6, the switch 7 function can be triggered to realize the on and off of the control circuit.

[0050] Example 3

[0051] like Figure 2-Figure 5 As shown, in an optional embodiment of the present invention, the pressing portion 43 is Z-shaped, formed by extending and bending the edge of the trigger portion 42. The free end plane of the Z-shaped pressing portion 43 is higher than the plane of the trigger portion 42, providing excellent support for the button 6. The Z-shaped structure also offers excellent rigidity, allowing it to support the button 6 for extended periods in the absence of external force. It also quickly resets after the external force has applied, preventing the pressing portion 43 from deforming due to pressure, leading to fatigue failure and inability to move the trigger portion 42.

[0052] Furthermore, a reinforcing rib is provided at the bend of the pressing portion 43. The reinforcing rib can further improve the rigidity of the pressing portion 43, and prevent the pressing portion 43 from deforming due to pressure and causing fatigue failure, thereby failing to drive the trigger portion 42 to move.

[0053] Example 4

[0054] like Figure 2-Figure 5 As shown, in an optional embodiment of the present invention, there are four pressing portions 43, which extend toward the four corners of the switch device respectively. This situation is mainly for square and rectangular switch devices.

[0055] Because the two diagonal directions of a square or rectangular switch device are the longest, they are also the most likely to produce blind spots, resulting in the inability to trigger the switch 7. Four pressing portions 43 are provided, extending outward from the edge of the trigger portion 42 and extending close to the four corners of the switch device. When the user directly presses the upper left corner, lower left corner, upper right corner, or lower right corner of the button 6, the force can be directly transmitted to the pressing portion 43 at the corresponding position. When the left part of the button 6 is directly pressed, the force is transmitted to the pressing portions 43 at the upper left and lower left corners. When the right part of the button 6 is directly pressed, the force is transmitted to the pressing portions 43 at the upper right and lower right corners, and so on. This can avoid the occurrence of triggering blind spots.

[0056] Example 5

[0057] like Figure 2 、 Figure 5 、 Figure 6 As shown, in an optional embodiment of the present invention, the pressing portion 43 is provided with a first positioning hole 431, and the button 6 is provided with a first positioning post 62 that is an interference fit with the first positioning hole 431. Furthermore, the trigger portion 42 is provided with a second positioning hole 422, and the button 6 is provided with a second positioning post 63 that is an interference fit with the second positioning hole 422. Both the first positioning post 62 and the second positioning post 63 are cross-shaped posts.

[0058] During the assembly process, the first positioning post 62 on the button 6 passes through the first positioning hole 431 on the pressing portion 43 and is interference fit, so that the button 6 and the pressing portion 43 are connected as a whole. The second positioning post 63 on the button 6 passes through the second positioning hole 422 on the trigger portion 42 and is interference fit, so that the button 6 and the trigger portion 42 are connected as a whole. Therefore, after pressing the button 6, the travel loss caused by insufficient structural strength can be reduced.

[0059] Of course, the button 6 and the pressing portion 43 and the trigger portion 42 can also be assembled in other ways, for example, by using a buckle and a slot assembly method or a hot melt assembly method, which will not be detailed here.

[0060] Example 6

[0061] like Figure 2 、 Figure 5 、 Figure 6 As shown, in an optional embodiment of the present invention, a rotating shaft 413 is provided on both sides of the fixing portion 41 , and a shaft hole 64 adapted to the rotating shaft 413 is provided on the button 6 .

[0062] The fixing portion 41 has two through slots on either side, each containing a rotating shaft 413. The button 6 has a protruding portion 65 on the side facing the bracket 4, with a shaft hole 64 formed in the protruding portion 65. During assembly of the button 6 and the bracket 4, the rotating shaft 413 engages with the shaft hole 64.

[0063] A lever structure is formed between the button 6 and the bracket 4, allowing the button 6 to rotate relative to the bracket 4 about the rotating shaft 413. Furthermore, after the rotating shaft 413 is inserted into the shaft hole 64, they can realize a mutual limit function. During the assembly process, the user can pre-install the button 6 on the bracket 4 by inserting the rotating shaft 413 into the shaft hole 64, which facilitates the user's assembly. The rotating shaft 413 and the shaft hole 64 are mutually limited to prevent displacement deviation.

[0064] In an embodiment of the present invention, a trigger portion 42 elastically connected to a fixed portion 41 and a plurality of divergently arranged pressing portions 43 are provided on the bracket 4, and the free ends of the pressing portions 43 are tilted away from the switch 7 to support the button 6. When any position on the surface of the button 6 is pressed, the external force can be transmitted from the button 6 to the pressing portion 43, and then from the pressing portion 43 to the trigger portion 42, so that the trigger portion 42 can press the switch 7 arranged opposite to it, thereby turning the circuit on and off. The overall structure of the switch device is simple and reliable, and the circuit can be turned on and off by pressing any position on the surface of the button 6, thereby improving the user experience. The provision of a boss 421 ensures that the user can control the circuit on and off after pressing the button 6, and avoids insufficient displacement of the trigger portion 42, which fails to touch the switch 7 and causes the circuit to fail to control. The provision of a reinforcing rib at the bend of the pressing portion 43 can further increase the rigidity of the pressing portion 43, preventing the pressing portion 43 from deforming due to pressure and fatigue failure, thereby failing to drive the trigger portion 42 to move. Four pressing portions 43 are provided, extending outward from the edge of the trigger portion 42 and near the four corners of the switch device to avoid triggering blind spots. The first positioning post 62 on the button 6 passes through the first positioning hole 431 in the pressing portion 43, connecting the button 6 and the pressing portion 43 as a single unit. This reduces travel loss caused by insufficient structural strength after pressing the button 6.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A switch device, characterized in that: include: A fixing frame is provided with a cavity, wherein the cavity has an opening, and a switch is provided at the cavity opening; A bracket is disposed at the opening of the cavity and on a side of the switch facing away from the cavity; the bracket includes a fixed portion, a trigger portion disposed opposite the switch, and a plurality of divergently arranged pressing portions extending along the plane of the trigger portion; the trigger portion, the pressing portion, and the fixed portion are elastically connected to each other with a gap therebetween, the trigger portion moving under pressure to trigger the switch to open and close; the free end of the pressing portion tilts away from the switch; a button connected to a side of the bracket facing away from the switch and supported by a free end of the pressing portion; The bracket further includes a plurality of elastic connecting parts, one end of each of the elastic connecting parts is connected to the fixing part, and the other end is connected to the pressing part or the triggering part, so that the triggering part, the pressing part and the fixing part are elastically connected to each other; The elastic connecting portion is connected to the non-free end side of the pressing portion.

2. The switch device according to claim 1, wherein: A boss is provided on the surface of the trigger portion opposite to the switch, and the boss is adapted to the switch.

3. The switch device according to claim 1, wherein: The pressing portion is Z-shaped and is formed by integrally extending and bending the edge of the trigger portion.

4. The switch device according to claim 3, characterized in that A reinforcing rib is provided at the bending portion of the pressing portion.

5. The switch device according to claim 1, wherein: There are four pressing portions, which extend toward four corners of the switch device respectively.

6. The switch device according to claim 1, wherein: The elastic connecting portion is arc-shaped.

7. The switch device according to any one of claims 1 to 5, characterized in that: The pressing portion is provided with a first positioning hole, and the button is provided with a first positioning column which is interference-fitted with the first positioning hole.

8. The switch device according to any one of claims 1 to 5, characterized in that: Rotating shafts are respectively provided on both sides of the fixing portion, and shaft holes adapted to the rotating shafts are provided on the button.

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