Battery cover switch structure

Abstract

The utility model discloses a battery cover switch structure, which comprises a top cover and a bottom cover, a first electrode and a second electrode are arranged on the circuit board; the middle part of the metal dome protrudes upwards, and the outer edge of the lower end of the metal dome is arranged on the circuit board and is in contact conduction with the second electrode; a key; when the key is pressed down, the key drives the middle part of the metal dome to generate elastic deformation so as to protrude downwards and be in contact with the first electrode, so that the first electrode is conducted with the second electrode. According to the utility model, a traditional plastic support is replaced by the circuit board, and the first electrode and the second electrode are arranged on the circuit board, so that additional trepanning is not needed, parts such as springs and rivets are omitted, and the structure is effectively simplified. According to the utility model, the metal dome is adopted to replace a traditional structure in which a conductive screw needs to be pressed to be in abutting contact with the first conductive sheet and the second conductive sheet, so that the contact links are reduced, the contact stability is effectively improved, and the failure rate of products is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery cover switch technology, and specifically to a battery cover switch structure. Background Technology

[0002] The main functions of the battery cover switch include controlling the on / off state of electrical appliances, locking and unlocking the battery compartment cover, protecting the battery, and preventing accidental contact. Specifically, the battery cover button can control the start and stop of electrical appliances, thereby extending battery life and ensuring normal operation. By pressing the battery cover button, the battery compartment cover can be opened or closed, ensuring that the battery will not fall out accidentally while ensuring the normal operation of the electrical appliance. In addition, locking the battery compartment cover can effectively prevent accidental contact and ensure safety during use.

[0003] Combination Figure 1 and Figure 2 As shown, most battery cover buttons on the market typically have the following structure: a plastic bracket 92 is installed in the top cover 91, and a first conductive piece 931 and a second conductive piece 931 are riveted to the plastic bracket 92 by a first rivet 921 and a second rivet 922, respectively. There is a certain gap between the first conductive piece 931 and the second conductive piece 931. A button 94 is also provided on the top cover 91, and a conductive screw 96 is provided on the button 94. When the button 94 is pressed and the conductive screw 96 contacts the first conductive piece 931 and the second conductive piece 931, the first conductive piece 931 and the second conductive piece 931 are connected. In addition, the button 94 is lifted and reset by a spring 95.

[0004] However, this existing structure still has the following shortcomings:

[0005] In this technical solution, a conductive screw 96 is set on the button 94 so that when the button 94 is pressed, the conductive screw 96 can be driven to contact the first conductive piece 931 and the second conductive piece 931, thereby achieving conductivity. However, since the spring 95 always pushes the button 94 outward, it is easy to cause the conductive screw 96 to deviate unexpectedly, resulting in unstable contact between the conductive screw 96 and the first and second conductive pieces 931. In addition, the assembly of parts such as rivets and conductive pieces requires drilling holes in the plastic bracket 92, which is troublesome and inconvenient for production management.

[0006] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery cover switch structure.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a battery cover switch structure, comprising: a top cover; a circuit board disposed inside the top cover, wherein a first electrode and a second electrode are disposed on the circuit board; a dome switch, wherein the middle portion of the dome switch protrudes upward, and the lower outer edge of the dome switch is disposed on the circuit board and contacts and conducts with the second electrode; a button disposed on the top cover and pressing against the upper middle portion of the dome switch; when the button is pressed, the button drives the middle portion of the dome switch to elastically deform and protrude downward, and contact the first electrode, thereby making the first electrode and the second electrode conduct.

[0009] Furthermore, in the above technical solution, the top cover is provided with a button hole, and the button includes: a pressing part that protrudes outward through the button hole and is used for pressing by a human hand; a blocking protrusion integrally formed with the pressing part and used to prevent it from falling out of the button hole; and a pressing part integrally formed with the pressing part and used to press against the dome switch; and the size of the blocking protrusion is larger than the size of the button hole.

[0010] Furthermore, in the above technical solution, the inner wall of the top cover has several protruding locking protrusions for axially limiting the circuit board, and the inner wall of the top cover also has several protruding locking ridges for circumferentially limiting the circuit board.

[0011] Furthermore, in the above technical solution, the circuit board is provided with a snap-fit ​​clearance for snap-fit ​​positioning with the snap-fit ​​protrusion, and the circuit board is also provided with a snap-fit ​​slot for snap-fit ​​positioning with the snap-fit ​​protrusion.

[0012] Furthermore, in the above technical solution, there are two snap-fit ​​protrusions, and correspondingly, there are also two snap-fit ​​clearance positions. The snap-fit ​​protrusions are formed with snap-fit ​​inclined surfaces to facilitate snap-fitting of the circuit board. There are two snap-fit ​​ridges, and correspondingly, there are also two snap-fit ​​slots. The snap-fit ​​ridges are also formed with stepped grooves for limiting the circuit board.

[0013] Furthermore, in the above technical solution, the dome switch includes: an elastic part that is raised upward and can deform, and a dome switch flange integrally formed with the elastic part.

[0014] Furthermore, in the above technical solution, the circuit board is provided with a metal pad that is connected to the first electrode and is used to place the metal dome, and the circuit board is provided with a switch contact that is connected to the second electrode; when the button is pressed and the metal dome is driven to keep in contact with the switch contact, the first electrode and the second electrode are connected.

[0015] Furthermore, in the above technical solution, the metal gasket is annular and fits against the protruding edge of the dome switch. The metal gasket is distributed around the switch contact, and the metal gasket is formed with a clearance opening for the switch contact to conduct to the second electrode. The metal gasket protrudes from the upper surface of the circuit board, while the switch contact does not protrude from the upper surface of the circuit board.

[0016] Furthermore, in the above technical solution, the lower end face of the circuit board is provided with a first conductive electrode that is connected to the first electrode, and the lower end face of the circuit board is also provided with a second conductive electrode that is connected to the second electrode.

[0017] Furthermore, in the above technical solution, the outer periphery of the top cover is also provided with a shell for enhanced protection; the circuit board is also provided with at least one foolproof hole to facilitate battery assembly.

[0018] After adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this utility model, a circuit board replaces the traditional plastic bracket, and the first and second electrodes are set on the circuit board, eliminating the need for additional holes and eliminating parts such as springs and rivets, effectively simplifying the structure and enabling its application in various battery cover switch structures. Furthermore, compared with existing structures, this utility model uses a dome switch instead of the traditional structure requiring a pressing conductive screw to make contact with the first and second conductive plates, reducing contact points, effectively improving contact stability, and greatly reducing the product failure rate, making this utility model highly competitive in the market. Attached Figure Description

[0019] Figure 1 This is a cross-sectional schematic diagram of the prior art;

[0020] Figure 2 This is a cross-sectional view of existing technology;

[0021] Figure 3 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 4 This is a cross-sectional schematic diagram of the present invention;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a three-dimensional schematic diagram of the button in this utility model;

[0025] Figure 7 This is a three-dimensional schematic diagram of the pot dome slices in this utility model;

[0026] Figure 8 This is a three-dimensional schematic diagram of the top cover in this utility model;

[0027] Figure 9 This is a three-dimensional schematic diagram of the circuit board in this utility model;

[0028] Figure 10 This is a three-dimensional schematic diagram of the circuit board in this utility model from another perspective. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0030] See Figures 3 to 10 The diagram shows a battery cover switch structure, comprising: a top cover 1; a circuit board 2 disposed inside the top cover 1, wherein a first electrode 21 and a second electrode 22 are disposed on the circuit board 2; a dome switch 3, the middle of which protrudes upward, and the lower outer edge of the dome switch 3 is disposed on the circuit board 2 and contacts and conducts with the second electrode 22; and a button 4 disposed on the top cover 1 and pressing against the upper middle part of the dome switch 3. When the button 4 is pressed, the button 4 causes the middle part of the dome switch 3 to elastically deform and protrude downward, contacting the first electrode 21, thereby connecting the first electrode 21 and the second electrode 22.

[0031] In this invention, a circuit board 2 replaces the traditional plastic bracket 92. The first electrode 21 and the second electrode 22 are mounted on the circuit board 2, eliminating the need for additional holes and eliminating components such as springs and rivets. This effectively simplifies the structure and allows for its application in various battery cover switch structures. Furthermore, compared to existing structures, this invention uses a dome switch 3 instead of the traditional structure requiring the conductive screw 96 to press against the first and second conductive plates 931. This reduces contact points, effectively improves contact stability, and significantly reduces the product failure rate, making this invention highly competitive in the market.

[0032] The top cover 1 has a button hole 11. The button 4 includes: a pressing part 41 protruding outward through the button hole 11 for pressing by a human hand; a blocking protrusion 42 integrally formed with the pressing part 41 to prevent it from falling out of the button hole 11; and a pressing part 43 integrally formed with the pressing part 41 for pressing against the dome switch 3. The size of the blocking protrusion 42 is larger than the size of the button hole 11. Here, to prevent the button 4 from accidentally falling out of the button hole 11 during rebound reset, a blocking protrusion 42 is formed extending from the lower end of the pressing part 41 of the button 4. It can be understood that the size of the blocking protrusion 42 needs to be larger than the size of the button hole 11 to effectively limit the button 4. In addition, combined with Figure 6 As shown, the cross-sectional shape of the pressing part 43 is "+" shaped, so that when the button 4 is pressed, the pressing part 43 can press the dome 3 more fully.

[0033] The inner wall of the top cover 1 has several protruding locking protrusions 12 for axially limiting the circuit board 2, and several protruding locking ribs 13 for circumferentially limiting the circuit board 2. The circuit board 2 has locking clearance positions 23 for engaging with the locking protrusions 12, and locking grooves 24 for engaging with the locking ribs 13. Here, the locking protrusions 12 are locked onto the locking clearance positions 23, and the locking ribs 13 are locked onto the locking grooves 24, thus fixing the circuit board 2 in the top cover 1.

[0034] There are two snap-fit ​​protrusions 12, and correspondingly, there are also two snap-fit ​​clearance positions 23. The snap-fit ​​protrusions 12 are formed with snap-fit ​​inclined surfaces 121 to facilitate snap-fit ​​of the circuit board 2. There are two snap-fit ​​ridge strips 13, and correspondingly, there are also two snap-fit ​​slots 24. The snap-fit ​​ridge strips 13 are also formed with stepped grooves 131 for limiting the circuit board 2.

[0035] The dome switch 3 includes: an upwardly raised and deformable elastic portion 31 and a dome switch flange 32 integrally formed with the elastic portion 31. Here, the dome switch 3 used in this utility model is the commonly available dome switch spring. When the elastic portion 31 is compressed to a certain extent, the elastic portion 31 will elastically deform downward and maintain a concave shape, so that the elastic portion 31 continues to contact and conduct with the switch contact 26. When it is necessary to disconnect, it is only necessary to press the button 4 to drive the elastic portion 31 to return to its original shape. The dome switch 3 has the characteristics of stable contact, strong conductivity, stable rebound, and good feel, and is particularly suitable for various micro switches.

[0036] The circuit board 2 is provided with a metal pad 25 that is conductive to the first electrode 21 and is used to place the dome switch 3. The circuit board 2 is also provided with a switch contact 26 that is conductive to the second electrode 22. When the button 4 is pressed and the dome switch 3 is brought into contact with the switch contact 26, the first electrode 21 and the second electrode 22 are connected. The metal pad 25 is annular and fits against the protruding edge 32 of the dome switch. The metal pad 25 is distributed around the switch contact 26 and has a clearance opening 251 for the switch contact 26 to conduct to the second electrode 22. The metal pad 25 protrudes from the upper surface of the circuit board 2, while the switch contact 26 does not protrude from the upper surface of the circuit board 2. Here, the height of the metal pad 25 is higher than that of the switch contact 26, firstly to leave a gap between the dome switch 3 and the circuit board 2 to avoid accidental contact between the dome switch 3 and the switch contact 26, and secondly to allow deformation space for the elastic part 31 of the dome switch 3.

[0037] The lower end face of the circuit board 2 is provided with a first conductive electrode 27 that is connected to the first electrode 21, and a second conductive electrode 28 that is connected to the second electrode 22. Here, the first conductive electrode 27 and the second conductive electrode 28 are used to connect with external electronic devices such as batteries.

[0038] The top cover 1 is further surrounded by a housing 5 for enhanced protection. Here, the housing 5 can protect the top cover 1 from external bumps and friction, effectively increasing its service life.

[0039] The circuit board 2 is also provided with at least one foolproof hole 29 to facilitate battery assembly. Here, when the battery is incorrectly assembled with the positive terminal facing up, the positive terminal protrusion of the battery will get stuck in the foolproof hole 29, and the assembly will not be successful. Only when the battery is correctly assembled with the negative terminal facing up can the assembly be successful, effectively avoiding incorrect battery assembly.

[0040] In summary, this invention replaces the traditional plastic bracket 92 with a circuit board 2. The first electrode 21 and the second electrode 22 are mounted on the circuit board 2, eliminating the need for additional holes and eliminating components such as springs and rivets. This effectively simplifies the structure and allows for its application in various battery cover switch structures. Furthermore, compared to existing structures, this invention uses a dome switch 3 instead of the traditional structure requiring the conductive screw 96 to press against the first and second conductive plates 931, reducing contact points, effectively improving contact stability, and significantly reducing the product failure rate, making this invention highly competitive in the market.

[0041] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A battery cover switch structure, characterized by, It includes: The top cover (1); Circuit board (2), which is provided in the top cover (1), and the first electrode (21) and the second electrode (22) are provided on the circuit board (2); The pot piece (3) is provided on the circuit board (2) and is in contact with the second electrode (22); The key (4) is provided on the top cover (1) and is pressed on the upper end of the pot piece (3); When the key (4) is pressed, the middle part of the pot piece (3) is driven to produce elastic deformation to protrude downward and contact the first electrode (21), so that the first electrode (21) and the second electrode (22) are in contact.

2. The battery cover switch structure of claim 1, wherein: The top cover (1) is provided with a key hole (11), and the key (4) includes a pressing part (41) exposed outside through the key hole (11) and used for pressing by human hands, a blocking convex edge (42) integrally formed with the pressing part (41) and used for preventing the key (4) from being pulled out of the key hole (11), and a pressing part (43) integrally formed with the pressing part (41) and used for pressing contact with the pot piece (3); and the size of the blocking convex edge (42) is greater than the size of the key hole (11).

3. The battery cover switch structure of claim 1, wherein: The inner wall of the top cover (1) is protruded to form a plurality of clamping convex parts (12) for axially limiting the circuit board (2), and the inner wall of the top cover (1) is also protruded to form a plurality of clamping convex rib strips (13) for circumferentially limiting the circuit board (2).

4. The battery cover switch structure of claim 3, wherein: The circuit board (2) is provided with a clamping avoidance position (23) for clamping positioning with the clamping convex part (12), and the circuit board (2) is also provided with a clamping slot (24) for clamping positioning with the clamping convex rib strip (13).

5. The battery cover switch structure of claim 4, wherein: The number of the clamping convex parts (12) is two, and the number of the clamping avoidance positions (23) is also two, and the clamping convex parts (12) are formed with clamping inclined surfaces (121) for facilitating clamping of the circuit board (2); the number of the clamping convex rib strips (13) is two, and the number of the clamping slots (24) is also two, and the clamping convex rib strips (13) are also formed with stepped grooves (131) for limiting the circuit board (2).

6. The battery cover switch structure of claim 1, wherein: The pot piece (3) includes an elastic part (31) protruding upward and capable of deforming, and a pot piece convex edge (32) integrally formed with the elastic part (31).

7. The battery cover switch structure of claim 6, wherein: The circuit board (2) is provided with a metal pad (25) in contact with the first electrode (21) and used for placing the pot piece (3), and the circuit board (2) is provided with a switch contact (26) in contact with the second electrode (22); when the key (4) is pressed and the pot piece (3) is kept in contact with the switch contact (26), the first electrode (21) and the second electrode (22) are in contact.

8. The battery cover switch structure of claim 7, wherein: The metal gasket (25) is in the shape of a ring and is in close contact with the convex edge (32) of the pot piece. The metal gasket (25) is distributed around the switch contact (26) in a ring shape, and the metal gasket (25) is formed with an avoiding opening (251) for the switch contact (26) to conduct with the second electrode (22). The metal gasket (25) protrudes from the upper surface of the circuit board (2), and the switch contact (26) does not protrude from the upper surface of the circuit board (2).

9. The battery cover switch structure according to any one of claims 1 to 8, characterized by: The lower end surface of the circuit board (2) is provided with a first conductive electrode (27) for conducting with the first electrode (21), and the lower end surface of the circuit board (2) is also provided with a second conductive electrode (28) for conducting with the second electrode (22).

10. The battery cover switch structure according to any one of claims 1 to 8, characterized by: The top cover (1) is further provided with a shell (5) for enhanced protection. At least one foolproof hole (29) is formed on the circuit board (2) to facilitate the assembly of the battery.

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