Elastic sheet switch structure

Abstract

The utility model relates to the technical field of switches, in particular to a shrapnel switch structure, which comprises a protective shell and a shrapnel assembly positioned in the protective shell, and the shrapnel assembly comprises a first shrapnel and a second shrapnel which are oppositely arranged; the first elastic sheet is provided with a crimping part, one side, close to the second elastic sheet, of the crimping part is connected with a contact plate, and the second elastic sheet is partially located below the contact plate; the crimping part passes through the protective shell and is located outside the protective shell. According to the elastic sheet assembly, the pressing part is pressed downwards to drive the contact plate to move downwards, so that the contact plate is in contact with the second elastic sheet, a circuit connected with the first elastic sheet is conducted with a circuit connected with the second elastic sheet, meanwhile, the first elastic sheet and the second elastic sheet are located in the protective shell, and only the pressing part of the elastic sheet assembly is located outside the protective shell; according to the elastic piece switch structure, the elastic piece assembly can be effectively protected by the protection shell, the situation that the elastic pieces except the crimping part are accidentally collided and are accidentally electrified is avoided, and the elastic piece switch structure is higher in safety and higher in reliability in actual use.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, and particularly relates to a shrapnel switch structure. Background Art

[0002] A shrapnel switch is a commonly used electronic switch device, and its working principle is based on the mechanical movement of the shrapnel. A shrapnel switch usually consists of a bent elastic metal sheet and a contact point in contact with it.

[0003] When the shrapnel is not in a bent state, the contact points remain separated and the circuit is disconnected. When an external force acts on the shrapnel and bends it, the contact points are closed and the circuit is connected. Due to the advantages of simple structure and high reliability of the shrapnel switch, it has been widely used in many electronic devices. Shrapnel switches are commonly used in mobile phones, TVs, computers and other devices to implement functions such as power switches, volume adjustments, and call buttons.

[0004] For example, the Chinese utility model patent with the patent publication number CN214311993U discloses a shrapnel switch assembly, a fire detector and a fire detection system. Among them, the shrapnel switch assembly includes a shrapnel and a circuit board. The first end of the shrapnel is fixedly connected to the circuit board, and the second end of the shrapnel can be switched between a first position and a second position. In the first position, the second end of the shrapnel is electrically connected to the circuit board, and in the second position, the second end of the shrapnel is disconnected from the circuit board.

[0005] However, in actual use, since the shrapnel of most shrapnel switches is completely exposed and not effectively protected, the shrapnel is easily accidentally collided by other components, resulting in accidental power-on. Content of the Utility Model

[0006] The purpose of the utility model is to provide a shrapnel switch structure for the problem that the shrapnel of the shrapnel switch in the background art is completely exposed and not effectively protected, so that the shrapnel is easily accidentally collided by other components, resulting in accidental power-on.

[0007] The utility model provides a shrapnel switch structure, which includes a protective shell and a shrapnel assembly located inside the protective shell. The shrapnel assembly includes a first shrapnel and a second shrapnel arranged oppositely;

[0008] The first shrapnel has a crimping part, and a contact plate is connected to one side of the crimping part close to the second shrapnel. Part of the second shrapnel is located below the contact plate;

[0009] The crimping part passes through the protective shell and is located outside the protective shell.

[0010] A shrapnel switch structure described in this application includes a protective shell, a first shrapnel, and a second shrapnel located inside the protective shell. The first shrapnel has a crimping portion, and a contact plate is connected to one side of the crimping portion close to the second shrapnel. Part of the second shrapnel is located below the contact plate. By pressing down the crimping portion, the crimping portion drives the contact plate to move downward, so that the contact plate contacts the second shrapnel, and then the first shrapnel and the second shrapnel contact each other, making the circuit connected to the first shrapnel conduct with the circuit connected to the second shrapnel. At the same time, since the first shrapnel and the second shrapnel are located inside the protective shell and the crimping portion passes through the protective shell and is located outside the protective shell, only the crimping portion of the shrapnel assembly is located outside the protective shell, enabling the protective shell to effectively protect the shrapnel assembly and prevent the shrapnel other than the crimping portion from being accidentally hit and accidentally powered on, making the shrapnel switch structure of this application safer and more reliable in actual use.

[0011] Preferably, a first through hole is provided at the top of the protective shell, and the crimping portion passes through the first through hole and is located outside the protective shell.

[0012] By providing a first through hole at the top of the protective shell, it is convenient for the crimping portion to pass through the first through hole to the outside of the protective shell.

[0013] Preferably, a fixing block is further provided inside the protective shell, and one end of the first shrapnel and one end of the second shrapnel are both fixed on the fixing block;

[0014] The end of the first shrapnel away from the fixing block is connected to the crimping portion;

[0015] The end of the second shrapnel away from the fixing block extends to below the contact plate.

[0016] Preferably, the first shrapnel has a first arc segment, one end of the first arc segment is fixed on the fixing block, and the other end of the first arc segment extends to the top of the protective shell and is connected to the crimping portion.

[0017] Preferably, the second shrapnel has a second arc segment, one end of the second arc segment is fixed on the fixing block, and the other end of the second arc segment extends to below the contact plate.

[0018] Preferably, both sides of the fixing block are in an outer arc shape;

[0019] The protective shell has a side wall in an inner arc shape. An arc-shaped cavity is formed between the fixing block and the side wall, and the first arc segment and the second arc segment are located in the arc-shaped cavity.

[0020] Preferably, it further includes a first fixing screw and a second fixing screw. The first shrapnel is connected to the fixing block through the first fixing screw;

[0021] The second elastic piece is connected to the fixed block by the second fixing screw.

[0022] Preferably, two second through holes are provided at the bottom of the protective case. The first fixing screw passes through one of the second through holes and is connected to the first elastic piece, and the second fixing screw passes through the other second through hole and is connected to the second elastic piece.

[0023] Preferably, it further includes a side plate, and the side plate is detachably connected to the protective case.

[0024] Preferably, mounting holes are further provided on the protective case, and the mounting holes penetrate through the protective case.

[0025] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0026] A kind of elastic piece switch structure described in the present application includes a protective case and a first elastic piece and a second elastic piece located inside the protective case. The first elastic piece has a crimping part, and a contact plate is connected to the side of the crimping part close to the second elastic piece. Part of the second elastic piece is located below the contact plate. By pressing down the crimping part, the crimping part drives the contact plate to move downward, so that the contact plate contacts the second elastic piece, and then the first elastic piece and the second elastic piece are in contact, so that the circuit connected to the first elastic piece is connected to the circuit connected to the second elastic piece. At the same time, since the first elastic piece and the second elastic piece are located inside the protective case, and the crimping part passes through the protective case and is located outside the protective case, only the crimping part of the elastic piece assembly is located outside the protective case, so that the protective case can effectively protect the elastic piece assembly and prevent the elastic pieces other than the crimping part from being accidentally collided and energized accidentally, making the safety and reliability of a kind of elastic piece switch structure described in the present application higher in actual use. Description of the Drawings

[0027] Figure 1 is the three-dimensional schematic of the present application Figure 1 .

[0028] Figure 2 is the three-dimensional schematic of the present application Figure 2 .

[0029] Figure 3 is the cross-sectional view of the present application.

[0030] Figure 4 is the internal schematic of the present application.

[0031] Figure 5 is the schematic of the elastic piece assembly of the present application Figure 1 .

[0032] Figure 6 is the schematic of the elastic piece assembly of the present application Figure 2 .

[0033] Markings in the figure:

[0034] 1 - protective case, 11 - first through - hole, 12 - second through - hole, 13 - side wall, 2 - first elastic piece, 21 - crimping part, 22 - contact plate, 23 - first arc segment, 24 - first connection hole, 3 - second elastic piece, 31 - second arc segment, 32 - second connection hole, 4 - first fixing screw, 5 - second fixing screw, 6 - third fixing screw, 7 - fixing block, 8 - mounting hole, 9 - side plate. Specific embodiments

[0035] The present utility model will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above - mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model belong to the scope of the present utility model.

[0036] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / device / equipment of the present utility model is usually used and placed. These terms of orientation or position relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship. Therefore, it should not be understood as a limitation to the present utility model.

[0037] In addition, for terms such as "horizontal", "vertical", "hanging", "parallel", etc., it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.

[0038] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0039] In addition, in the description of the embodiments of the present utility model, "several", "multiple", and "a plurality of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even more than 9.

[0040] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, when terms such as "set", "installed", "connected", "connected", "provided with", "laid", and "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be common connection means in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components.

[0041] Embodiment 1

[0042] As Figures 1 - 4 shown, a shrapnel switch structure described in this embodiment includes a shrapnel assembly. The shrapnel assembly includes a first shrapnel 2 and a second shrapnel 3 arranged oppositely;

[0043] The first shrapnel 2 has a crimping portion 21. A contact plate 22 is connected to the side of the crimping portion 21 close to the second shrapnel 3. A part of the second shrapnel 3 is located below the contact plate 22;

[0044] It further includes a protective shell 1. The shrapnel assembly is located inside the protective shell 1, and the crimping portion 21 passes through the protective shell 1 and is located outside the protective shell 1.

[0045] By pressing down the crimping portion 21, the crimping portion 21 drives the contact plate 22 to move downward, so that the contact plate 22 contacts the second shrapnel 3, and then the first shrapnel 2 and the second shrapnel 3 are in contact, making the circuit connected to the first shrapnel 2 conduct with the circuit connected to the second shrapnel 3. At the same time, since the first shrapnel 2 and the second shrapnel 3 are located inside the protective shell, and the crimping portion 21 passes through the protective shell 1 and is located outside the protective shell 1, only the crimping portion 21 of the shrapnel assembly is located outside the protective shell 1, enabling the protective shell 1 to effectively protect the shrapnel assembly and prevent the shrapnel other than the crimping portion 21 from being accidentally hit and accidentally powered on, making the shrapnel switch structure described in this embodiment safer and more reliable in actual use.

[0046] In an optional implementation manner, as Figures 3 - 4 shown, a first through hole 11 is provided at the top of the protective shell 1, and the crimping portion 21 passes through the first through hole 11 and is located outside the protective shell 1.

[0047] By providing the first through hole 11 at the top of the protective shell 1, it is convenient for the crimping portion 21 to pass through the first through hole 11 and come outside the protective shell 1.

[0048] In one or several embodiments, as Figures 3 - 4 shown, a fixing block 7 is further arranged in the protective shell 1, and one end of the first elastic sheet 2 and one end of the second elastic sheet 3 are both fixed on the fixing block 7;

[0049] One end of the first elastic sheet 2 far from the fixing block 7 is connected to the crimping portion 21;

[0050] One end of the second elastic sheet 3 far from the fixing block 7 extends to the lower side of the contact plate 22.

[0051] By arranging the fixing block 7 inside the protective shell 1, it is convenient to fix the first elastic sheet 2 and the second elastic sheet 3. One end of the first elastic sheet 2 and one end of the second elastic sheet 3 are fixed on the fixing block 7, so as to fix the first elastic sheet 2 and the second elastic sheet 3 inside the protective shell 1, so as to protect the first elastic sheet 2 and the second elastic sheet 3 through the protective shell 1.

[0052] In an optional embodiment, as Figures 4 - 5 shown, the first elastic sheet 2 has a first arc segment 23. One end of the first arc segment 23 is fixed on the fixing block 7, and the other end of the first arc segment 23 extends to the top of the protective shell 1 and is connected to the crimping portion 21.

[0053] Since the first elastic sheet 2 has the first arc segment 23, the arc segment can return to its original state after being pressed, so that the first elastic sheet 2 has elasticity. One end of the first arc segment 23 is fixed on the fixing block 7, and the other end of the first arc segment 23 is connected to the crimping portion 21. When the crimping portion 21 is pressed, while driving the contact plate 22 to move downward, the first arc segment 23 will also be driven to move downward. At this time, the circuit is turned on. When the pressure on the crimping portion 21 disappears, when the first arc segment 23 returns to its original state and moves upward, it will drive the crimping portion 21 and the contact plate 22 to move upward together, separating the contact plate 22 from the second elastic sheet 3 and realizing the disconnection of the circuit. Among them, the first elastic sheet 2 is made of a metal material.

[0054] In an optional embodiment, as Figures 4 - 5 shown, the second elastic sheet 3 has a second arc segment 31. One end of the second arc segment 31 is fixed on the fixing block 7, and the other end of the second arc segment 31 extends to the lower side of the contact plate 22.

[0055] Since the second elastic piece 3 has a second arc segment 31, the arc segment can return to its original state after being compressed, so that the second elastic piece 3 has elasticity. When the contact plate 22 contacts the second elastic piece 3, the contact plate 22 will press down the second elastic piece 3. Due to the second arc segment 31, after the contact plate 22 and the second elastic piece 3 are separated, the second elastic piece 3 can return to its original state, avoiding the situation that after being pressed down by the contact plate 22 multiple times, the second elastic piece 3 deforms and there is a large gap between the contact plate 22 and the second elastic piece 3, resulting in poor contact. The second elastic piece 3 is made of a metal material.

[0056] In an alternative embodiment, both sides of the fixing block 7 are in an outer arc shape;

[0057] The protective shell 1 has a side wall 13, and the side wall 13 is in an inner arc shape. An arc-shaped cavity is formed between the fixing block 7 and the side wall 13. The first arc segment 23 and the second arc segment 31 are located in the arc-shaped cavity.

[0058] By forming an arc-shaped cavity in the protective shell 1, it is convenient to place the first elastic piece 2 and the second elastic piece 3, so that the first elastic piece 2 and the second elastic piece 3 match the protective shell 1.

[0059] In one or several embodiments, as Figures 3 - 4 shown, it further includes a first fixing screw 4 and a second fixing screw 5. The first elastic piece 2 is connected to the fixing block 7 through the first fixing screw 4;

[0060] The second elastic piece 3 is connected to the fixing block 7 through the second fixing screw 5.

[0061] The first elastic piece 2 and the second elastic piece 3 are fixed by the first fixing screw 4 and the second fixing screw 5. At the same time, the first fixing screw 4 is used to connect one wire, and the second fixing screw 5 is used to connect another wire. That is, during installation, the wire core of one wire is welded or wound around the first fixing screw 4, and the wire core of the other wire is welded or wound around the second fixing screw 5. When the first elastic piece 2 and the second elastic piece 3 are in contact, the two wires are electrically connected, so that the circuit is electrically connected.

[0062] In an alternative embodiment, as Figure 6 shown, the first elastic piece 2 is provided with a first connection hole 24. The first fixing screw 4 passes through the first connection hole 24 and is fixed on the fixing block 7. The second elastic piece 3 is provided with a second connection hole 32. The second fixing screw 5 passes through the second connection hole 32 and is fixed on the fixing block 7.

[0063] In an alternative embodiment, two second through holes 12 are provided at the bottom of the protective shell 1. The first fixing screw 4 passes through one second through hole 12 and is connected to the first elastic piece 2, and the second fixing screw 5 passes through the other second through hole 12 and is connected to the second elastic piece 3.

[0064] In one or more embodiments, as Figure 1 shown, it further includes a side plate 9, and the side plate 9 is detachably connected to the protective case 1. When installation or maintenance is required, by removing the side plate 9, it is convenient to install or maintain the first elastic piece 2, the second elastic piece 3, etc. in the protective case 1.

[0065] In an alternative embodiment, as Figure 1 , Figure 4 shown, the side plate 9 is fixed to the fixing block 7 by a third fixing screw 6.

[0066] In one or more embodiments, as Figures 1 - 2 shown, the protective case 1 is further provided with mounting holes 8, and the mounting holes 8 penetrate through the protective case 1. Due to the provision of the mounting holes 8, it is convenient to install screws in the mounting holes 8 to mount the elastic piece switch structure described in this embodiment on other devices or equipment.

[0067] Among them, the mounting holes 8 penetrating through the protective case 1 mean that the mounting holes 8 penetrate through the housing, the side plate 9 and the fixing block 7 of the protective case 1.

[0068] In an alternative embodiment, the number of the mounting holes 8 is not less than 2.

[0069] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shrapnel switch structure, characterized in that It includes a protective case (1) and a shrapnel assembly located inside the protective case (1). The shrapnel assembly includes a first shrapnel (2) and a second shrapnel (3) arranged oppositely. The first shrapnel (2) has a crimping portion (21). A contact plate (22) is connected to one side of the crimping portion (21) close to the second shrapnel (3). A part of the second shrapnel (3) is located below the contact plate (22). The crimping portion (21) passes through the protective case (1) and is located outside the protective case (1).

2. The snap switch structure according to claim 1, wherein A first through hole (11) is provided at the top of the protective case (1). The crimping portion (21) passes through the first through hole (11) and is located outside the protective case (1).

3. The snap switch structure according to claim 2, characterized in that, A fixing block (7) is further provided inside the protective case (1). One end of the first shrapnel (2) and one end of the second shrapnel (3) are both fixed on the fixing block (7). One end of the first shrapnel (2) far from the fixing block (7) is connected to the crimping portion (21). One end of the second shrapnel (3) far from the fixing block (7) extends below the contact plate (22).

4. A shrapnel switch structure according to claim 3, characterized in that, The first shrapnel (2) has a first arc segment (23). One end of the first arc segment (23) is fixed on the fixing block (7), and the other end of the first arc segment (23) extends to the top of the protective case (1) and is connected to the crimping portion (21).

5. A shrapnel switch structure according to claim 4, characterized in that, The second shrapnel (3) has a second arc segment (31). One end of the second arc segment (31) is fixed on the fixing block (7), and the other end of the second arc segment (31) extends below the contact plate (22).

6. The structure of a shrapnel switch according to claim 5, characterized in that, Both sides of the fixing block (7) are in an outer arc shape. The protective case (1) has a side wall (13). The side wall (13) is in an inner arc shape. An arc-shaped cavity is formed between the fixing block (7) and the side wall (13). The first arc segment (23) and the second arc segment (31) are located in the arc-shaped cavity.

7. A shrapnel switch structure according to claim 3, characterized in that, It further includes a first fixing screw (4) and a second fixing screw (5). The first shrapnel (2) is connected to the fixing block (7) through the first fixing screw (4). The second shrapnel (3) is connected to the fixing block (7) through the second fixing screw (5).

8. A shrapnel switch structure according to claim 7, characterized in that, Two second through holes (12) are provided at the bottom of the protective case (1). The first fixing screw (4) passes through one of the second through holes (12) and is connected to the first shrapnel (2). The second fixing screw (5) passes through the other second through hole (12) and is connected to the second shrapnel (3).

9. The snap switch structure according to claim 3, wherein, It further includes a side plate (9). The side plate (9) is detachably connected to the protective case (1).

10. A shrapnel switch structure according to claim 1, characterized in that, An installation hole (8) is further provided on the protective case (1). The installation hole (8) penetrates through the protective case (1).

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