Point contact key switch

Abstract

The utility model relates to the technical field of switches, in particular to a point contact key switch, which comprises a switch shell, a first inner assembly and a second inner assembly are arranged in the switch shell, the first inner assembly and the second inner assembly are clamped, a radial channel with two open sides is formed in the first inner assembly and the second inner assembly, and the radial channel is communicated with the first inner assembly and the second inner assembly. A pressing communication assembly and an elastic reset assembly are arranged in the radial channel in a sleeved mode, the pressing communication assembly extends out of openings in the two sides of the radial channel, the elastic reset assembly is arranged on the surface of the pressing communication assembly in a sleeved mode, and the elastic reset assembly abuts against the upper end and the lower end of the radial channel. After the switch shell is pulled out of the first fixing base and the second fixing base, the first fixing base and the second fixing base are not restrained any more, the first fixing base and the second fixing base can be separated, and therefore maintenance of the pressing communication assembly and the elastic reset assembly in the first fixing base and the second fixing base is facilitated.

Description

Technical Field

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

[0002] A button switch, also known as a sensitive switch, is pressed in the operation direction of the switch during use, and the switch is closed and connected. When the pressure is removed, the switch is disconnected. Its internal structure realizes on-off by the force change of an elastic member.

[0003] At present, the combination mode of the button switch is internal and external nested connection. The base and the spring for button reset are combined and connected in a way of upper and lower nesting. After the wiring pins are connected to the PCB board, the base cannot be removed due to the limitation of the wiring pins. Therefore, when troubleshooting electrical components of this type of button switch, it is necessary to separate the wiring pins and the connecting wires with a soldering iron before further inspection can be carried out, and the maintenance convenience is poor. For this reason, a touch button switch is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to solve the technical problems existing in the above-mentioned prior art, the utility model provides a touch button switch.

[0005] To solve the above technical problems, the utility model provides the following technical solution: a touch button switch, including a switch housing, a first inner component and a second inner component are arranged inside the switch housing, the first inner component and the second inner component are snap-fitted, a radial channel with openings on both sides is formed inside the first inner component and the second inner component, a pressing and connecting component and an elastic reset component are sleeved inside the radial channel, both ends of the pressing and connecting component extend out from the openings on both sides of the radial channel, the elastic reset component is sleeved on the surface of the pressing and connecting component, the elastic reset component abuts against the upper and lower ends of the radial channel, two groups of wiring pins are clamped on both sides of the second inner component, and the ends of the two groups of wiring pins are bent below both ends of the pressing and connecting component;

[0006] When pressing the pressing and connecting component, the pressing and connecting component slides vertically under the restriction of the radial channel, and both ends of the pressing and connecting component contact the wiring pins to make the two groups of wiring pins conduct. When the pressing is released, the elastic reset component pushes the pressing and connecting component back to reset the pressing and connecting component, and the connection between the two groups of wiring pins is disconnected.

[0007] Preferably, the first inner component includes a first fixed seat, a first guide groove, a first limiting groove and a connecting groove. The first fixed seat is arranged on one side inside the switch housing, the first guide groove is opened in the middle of the first fixed seat, the first limiting groove is opened in the middle of the first fixed seat, and there are two groups of connecting grooves, which are arranged on both sides of the first fixed seat respectively.

[0008] Preferably, a rectangular protrusion is formed on the back of the first fixing seat, and a through hole is formed at a corresponding position on the surface of the switch housing. The through hole and the protrusion cooperate to form an embedded locking structure.

[0009] Preferably, the second inner component includes a second fixing seat, a second guiding groove, a second limiting groove, and a connecting rod. The second fixing seat is arranged on the other side inside the switch housing. The second guiding groove is formed in the middle of the second fixing seat. The second limiting groove is arranged in the middle of the second guiding groove. There are two groups of connecting rods, which are arranged on both sides of the second fixing seat respectively. The connecting rod and the second fixing seat cooperate to form a clamping part, and the wiring pin is clamped in the clamping part.

[0010] Preferably, the first fixing seat and the second fixing seat are fixedly attached to each other through the cooperation of a connecting groove and a connecting rod. The first guiding groove and the second guiding groove cooperate to form a radial channel with openings on both sides.

[0011] Preferably, the pressing and connecting component includes a pressing column and a metal connecting piece. The pressing column is sleeved inside the radial channel. The metal connecting piece is fixed to the end of the pressing column, and the left and right ends of the metal connecting piece extend out from the openings on both sides of the radial channel.

[0012] Preferably, rectangular protrusions are formed on the edge of the metal connecting piece to cooperate with the first limiting groove and the second limiting groove. The rectangular protrusions are embedded in the first limiting groove and the second limiting groove. The first limiting groove and the second limiting groove cooperate with the rectangular protrusions on the edge of the metal connecting piece to form a limiting structure for vertical sliding.

[0013] Preferably, the elastic reset component includes a limiting spring and a reset spring. The limiting spring and the reset spring are respectively sleeved on the upper and lower outer parts of the pressing column. The ends of the limiting spring and the reset spring respectively abut against the top and bottom ends of the radial channel. The stroke of the reset spring is longer than that of the limiting spring.

[0014] Preferably, a wiring terminal is formed at the end of the wiring pin, and the wiring terminal is of an arc structure.

[0015] The beneficial effects of the present utility model compared with the prior art are as follows:

[0016] 1. The present utility model is provided with a first inner component and a second inner component. The first fixing seat and the second fixing seat are fixedly attached to each other through the cooperation of a connecting groove and a connecting rod. After the switch housing is pulled out from the outside of the first fixing seat and the second fixing seat, the first fixing seat and the second fixing seat are no longer restricted. By horizontally pulling the first fixing seat and the second fixing seat, the first fixing seat and the second fixing seat can be separated, so as to facilitate the maintenance of the pressing and connecting component and the elastic reset component inside the first fixing seat and the second fixing seat.

[0017] 2. In the present utility model, the first limiting groove and the second limiting groove limit the lateral rotation of the metal connecting piece through a rectangular protrusion. When the pressing column has a rotational tendency under the action of an external force, the metal connecting piece can inhibit the rotational tendency of the pressing column under the limitation of the first limiting groove and the second limiting groove, thereby avoiding the problem that the metal connecting piece rotates synchronously with the rotation of the pressing column, and the two ends of the metal connecting piece are deformed by force, and subsequent pressing cannot normally contact the wiring pin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a three-dimensional unfolded structural schematic diagram of the present utility model;

[0020] Figure 3 is a three-dimensional exploded structural schematic diagram of the present utility model;

[0021] Figure 4 is a three-dimensional exploded side view structural schematic diagram of the present utility model;

[0022] Figure 5 is a structural schematic diagram of the wiring terminal of the present utility model;

[0023] Figure 6 is a structural schematic diagram of the cooperation between the wiring pin and the wiring terminal of the present utility model.

[0024] The numbers in the figure represent:

[0025] 1. Switch housing; 2. First inner component; 21. First fixed seat; 22. First guiding groove; 23. First limiting groove; 24. Connecting groove; 3. Second inner component; 31. Second fixed seat; 32. Second guiding groove; 33. Second limiting groove; 34. Connecting rod; 4. Pressing and connecting component; 41. Pressing column; 42. Metal connecting piece; 5. Elastic reset component; 51. Limiting spring; 52. Reset spring; 6. Wiring pin; 7. Wiring terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further elaborates the present utility model in combination with the accompanying drawings and embodiments on the above and other technical features and advantages of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them.

[0027] Embodiment 1:

[0028] As Figures 1-6As shown, the utility model provides a touch key switch, including a switch housing 1, wherein a first inner component 2 and a second inner component 3 are arranged inside the switch housing 1, the first inner component 2 and the second inner component 3 are engaged, and a radial channel with openings on both sides is formed inside the first inner component 2 and the second inner component 3, and a press-connection component 4 and an elastic reset component 5 are sleeved in the radial channel, and both ends of the press-connection component 4 extend from the openings on both sides of the radial channel, and the elastic reset component 5 is sleeved on the surface of the press-connection component 4, and the elastic reset component 5 is in contact with the upper and lower ends of the radial channel, and two groups of wiring pins 6 are clamped on both sides of the second inner component 3, and the ends of the wiring pins 6 are formed with wiring terminals 7, and the wiring terminals 7 are arc-shaped structures, and the ends of the two groups of wiring pins 6 are bent to below the two ends of the press-connection component 4;

[0029] The connecting component 4 is pressed, and the connecting component 4 is restricted by the radial channel to slide vertically. The two ends of the connecting component 4 are in contact with the wiring pins 6 to make the two groups of wiring pins 6 conductive. The pressing is released, and the elastic reset component 5 pushes the connecting component 4 back to reset it, and the connection between the two groups of wiring pins 6 is disconnected.

[0030] The first inner component 2 includes a first fixing seat 21, a first guide groove 22, a first limiting groove 23 and a connecting groove 24;

[0031] The first fixing seat 21 is arranged at one side inside the switch housing 1 , the first guide groove 22 is opened in the middle of the first fixing seat 21 , the first limiting groove 23 is opened in the middle of the first fixing seat 21 , and two groups of connecting grooves 24 are arranged, and the two groups of connecting grooves 24 are arranged on both sides of the first fixing seat 21 .

[0032] The second inner component 3 includes a second fixing seat 31, a second guide groove 32, a second limiting groove 33 and a connecting rod 34;

[0033] The second fixing seat 31 is arranged on the other side of the switch housing 1, the second guide groove 32 is opened in the middle of the second fixing seat 31, the second limiting groove 33 is arranged in the middle of the second guide groove 32, and two groups of connecting rods 34 are arranged. The two groups of connecting rods 34 are arranged on both sides of the second fixing seat 31, and the connecting rods 34 cooperate with the second fixing seat 31 to form a clamping part. The wiring pin 6 is arranged in the clamping part. The first fixing seat 21 and the second fixing seat 31 are fixed by the connection groove 24 and the connecting rod 34. The first guide groove 22 and the second guide groove 32 cooperate to form a radial channel with openings on both sides, and the press-connecting component 4 is sleeved inside the radial channel.

[0034] A rectangular protrusion is provided on the back of the first fixing base 21, and a through hole is provided at the corresponding position on the surface of the switch housing 1. The through hole and the protrusion form an embedded locking structure. After the first fixing base 21 enters the inside of the switch housing 1, the first fixing base 21 is fixed inside the switch housing 1 through the rectangular protrusion. By squeezing the protrusion, the connection between the first fixing base 21 and the switch housing 1 can be released, enabling the switch housing 1 to be pulled out from the outside of the first fixing base 21 and the second fixing base 31. After the switch housing 1 is pulled out from the outside of the first fixing base 21 and the second fixing base 31, there is no longer any constraint between the first fixing base 21 and the second fixing base 31. By horizontally pulling the first fixing base 21 and the second fixing base 31, the first fixing base 21 can be separated from the second fixing base 31.

[0035] The pressing and connecting component 4 includes a pressing column 41 and a metal connecting piece 42;

[0036] The pressing column 41 is sleeved inside the radial channel. When the pressing column 41 is pressed, it moves vertically along the radial channel. The metal connecting piece 42 is fixed to the end of the pressing column 41. The left and right ends of the metal connecting piece 42 extend out from the openings on both sides of the radial channel. The metal connecting piece 42 moves synchronously with the horizontal movement of the pressing column 41. When the two ends of the metal connecting piece 42 contact the ends of the connection pins 6, the two groups of connection pins 6 are connected.

[0037] Rectangular protrusions are formed on the edge of the metal connecting piece 42 to cooperate with the first limiting groove 23 and the second limiting groove 33. The rectangular protrusions are embedded in the first limiting groove 23 and the second limiting groove 33. The first limiting groove 23 and the second limiting groove 33 cooperate with the rectangular protrusions on the edge of the metal connecting piece 42 to form a limiting structure for vertical sliding. The first limiting groove 23 and the second limiting groove 33 limit the lateral rotation of the metal connecting piece 42 through the rectangular protrusions. When the pressing column 41 has a rotational tendency under the action of an external force, the metal connecting piece 42 can inhibit the rotational tendency of the pressing column 41 under the limitation of the first limiting groove 23 and the second limiting groove 33, thus avoiding the problem that the two ends of the metal connecting piece 42 are deformed by force and cannot normally contact the connection pins 6 during subsequent pressing.

[0038] The elastic reset component 5 includes a limiting spring 51 and a reset spring 52;

[0039] The limiting spring 51 and the reset spring 52 are respectively sleeved on the upper and lower outer parts of the pressing column 41. The end parts of the limiting spring 51 and the reset spring 52 respectively abut against the top end and the bottom end of the radial channel. Under the elastic force of the limiting spring 51 and the reset spring 52, the pressing column 41 always remains at a fixed position in the radial channel. When the pressing column 41 is pressed to drive the metal connecting piece 42 to move vertically along the radial channel to connect the two groups of wiring pins 6, the limiting spring 51 and the reset spring 52 are deformed simultaneously under force. When the pressing action on the pressing column 41 is released, the limiting spring 51 and the reset spring 52 return to their initial shapes, thereby driving the pressing column 41 to reset.

[0040] The stroke of the reset spring 52 is longer than that of the limiting spring 51. When the limiting spring 51 and the reset spring 52 drive the pressing column 41 to reset through elastic force, the limiting spring 51 can limit the rebound stroke of the pressing column 41, so that the pressing column 41 always remains at a predetermined position in the radial channel, thereby forming a set virtual position, enabling the pressing column 41 to have a certain upward movement space and facilitating the adjustment of the setting position of the pressing column 41.

[0041] The above is only a preferred embodiment of the present invention, which is illustrative rather than restrictive to the present invention. Those skilled in the art understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, but all will fall within the protection scope of the present invention.

Claims

1. A touch key switch, comprising a switch housing (1), characterized in that: The switch housing (1) is provided with a first inner component (2) and a second inner component (3) inside. The first inner component (2) and the second inner component (3) are engaged with each other. A radial channel with openings on both sides is formed inside the first inner component (2) and the second inner component (3). A push-on connection component (4) and an elastic reset component (5) are sleeved inside the radial channel. The push-on connection component (4) extends from the openings on both sides of the radial channel. The elastic reset component (5) is sleeved on the surface of the push-on connection component (4). The elastic reset component (5) contacts the upper and lower ends of the radial channel. Two groups of connection pins (6) are clamped on both sides of the second inner component (3). The ends of the two groups of connection pins (6) are bent to below the two ends of the push-on connection component (4). The push-to-connect component (4) is pressed, and the push-to-connect component (4) is restricted by the radial channel to slide vertically, and both ends of the push-to-connect component (4) contact the wiring pins (6) to make the two groups of wiring pins (6) conductive, and the pressing is released, and the elastic reset component (5) pushes the push-to-connect component (4) back to reset the push-to-connect component (4), and the connection between the two groups of wiring pins (6) is disconnected.

2. A touch key switch as claimed in claim 1, characterized in that: The first inner component (2) comprises a first fixing seat (21), a first guide groove (22), a first limiting groove (23) and a connecting groove (24); the first fixing seat (21) is arranged at one side inside the switch housing (1); the first guide groove (22) is opened in the middle of the first fixing seat (21); the first limiting groove (23) is opened in the middle of the first fixing seat (21); and the connecting groove (24) is provided in two groups, and the two groups of connecting grooves (24) are arranged on both sides of the first fixing seat (21).

3. A touch key switch as claimed in claim 2, characterized in that: A rectangular protrusion is provided on the back of the first fixing seat (21), and a through hole is provided at a corresponding position on the surface of the switch housing (1), and the through hole cooperates with the protrusion to form an embedded locking structure.

4. A touch key switch as claimed in claim 3, characterized in that: The second inner component (3) comprises a second fixing seat (31), a second guide groove (32), a second limiting groove (33) and a connecting rod (34); the second fixing seat (31) is arranged at the other side of the switch housing (1); the second guide groove (32) is opened in the middle of the second fixing seat (31); the second limiting groove (33) is arranged in the middle of the second guide groove (32); two groups of connecting rods (34) are arranged on both sides of the second fixing seat (31); the connecting rod (34) cooperates with the second fixing seat (31) to form a clamping portion; the wiring pin (6) is engaged in the clamping portion.

5. A touch key switch as claimed in claim 4, characterized in that: The first fixing seat (21) and the second fixing seat (31) are fixed by the connection groove (24) and the connection rod (34), and the first guide groove (22) and the second guide groove (32) cooperate to form a radial channel with openings on both sides.

6. A touch key switch according to claim 1, characterized in that: The push-connecting assembly (4) comprises a push column (41) and a metal connecting piece (42), wherein the push column (41) is sleeved inside the radial channel, and the metal connecting piece (42) is fixed to the end of the push column (41), and the left and right ends of the metal connecting piece (42) extend out from openings on both sides of the radial channel.

7. A touch key switch as claimed in claim 6, characterized in that: The edge of the metal connecting piece (42) is formed with a rectangular protrusion that matches the first limiting groove (23) and the second limiting groove (33); the rectangular protrusion is embedded in the first limiting groove (23) and the second limiting groove (33); the first limiting groove (23) and the second limiting groove (33) match the rectangular protrusion on the edge of the metal connecting piece (42) to form a vertically sliding limiting structure.

8. A touch key switch as claimed in claim 1, characterized in that: The elastic return assembly (5) comprises a limiting spring (51) and a return spring (52), wherein the limiting spring (51) and the return spring (52) are respectively sleeved on the outer upper end and the outer lower end of the pressing column (41), and the ends of the limiting spring (51) and the return spring (52) respectively contact the top end and the bottom end of the radial channel, and the stroke of the return spring (52) is longer than the stroke of the limiting spring (51).

9. A touch key switch as claimed in claim 4, characterized in that: A connection terminal (7) is formed at the end of the connection pin (6), and the connection terminal (7) is an arc-shaped structure.

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