TWM485490U - Dual spring DIP switch structure improvement - Google Patents

Description

Double shrapnel finger switch structure improvement

This creation is related to the improvement of a double shrapnel finger switch structure, especially a conductive shrapnel structure which is used in a dip switch to increase the stability during conductive contact and avoid elastic fatigue.

Pressing, as shown in FIG. 1 and FIG. 2 , is a conductive elastic piece 1 which is commonly used in the present invention. The conductive elastic piece 1 is mainly provided with at least one elastic arm 12 extending from two sides of a base portion 11 . And disposed at the bottom of the push button 21 of the dip switch 2, by the reciprocating action of the push button 21, the conductive elastic piece 1 is moved to make the elastic arm 12 on both sides contact or not contact the conductive terminal in the dip switch 2 In the case of 22, the purpose of causing the current to be turned on or off, however, the elastic arms 12 of the conductive elastic sheets 1 are made of a conductive metal material, and are bent at a predetermined angle by punching during the manufacturing process. In order to make the elastic arm 12 have a slight elastic effect, since the metal itself has a certain elastic coefficient, when the metal material is bent, at this time, the predetermined angle of the original bending is subject to the rebound of the material itself. As a result, the required bending angle cannot be effectively fixed, and the contact failure occurs. Further, the conductive elastic piece 1 of the conventional DIP switch 2 has a metal rebounding effect when the press forming is performed, resulting in the elastic piece. The tolerance of the large angle may cause the conductive elastic piece 1 to be too large, and the pushing resistance of the push button 21 is increased when the ON/OFF action is performed, the movement is not smooth, or the angle of the conductive elastic piece 1 is too small, so that the push button 21 is loosened when moving, and even May cause unstable contact, etc. When the movable conductive elastic piece 1 is displaced into contact with the non-movable conductive terminal 22 for conduction, if a good contact conduction is to be achieved, the conductive elastic piece 1 must have a large pressure against the conductive terminal 22, but when the pressure is larger, the conductive elastic piece 1 is more likely to be deformed. If the pressure exceeds the pressure that the conductive elastic piece 1 can withstand, the conductive elastic piece 1 loses its elastic force due to excessive deformation and cannot rebound, and even cannot return to the original angle of the conductive elastic piece 1.

Therefore, how to improve the above-mentioned missing problems is the technical difficulty point that the creators of this case want to solve.

The main purpose of the present invention is that the conductive elastic piece has a curved portion having a suspended elastic contact portion extending from the base end, and when the finger switch is turned, the conductive terminal in the finger switch contacts the elastic contact portion of the bending portion, thereby achieving The purpose of conducting current is to increase the compression space between the conductive terminal and the contact portion through the suspension design of the elastic contact portion, in addition to enhancing the stability of the contact between the two, and avoiding the elasticity caused by excessive pressing during use. The problem of fatigue.

Conventional part:

1‧‧‧Electrical shrapnel

11‧‧‧ base

12‧‧‧Flexible arm

2‧‧‧Dip switch

21‧‧‧ push button

22‧‧‧Electrical terminals

This creation:

3‧‧‧Dial switch

31‧‧‧ push button

4‧‧‧Electrical terminals

41‧‧‧Contacts

5‧‧‧Electrical shrapnel

51‧‧‧ base

510‧‧‧Positioning holes

52‧‧‧ pins

53‧‧‧Bend

531‧‧‧Flexible contact

6‧‧‧Dial switch

61‧‧‧ push button

62‧‧‧Electrical terminals

Figure 1 is a stereoscopic view of the conventional use.

Figure 2 is a schematic diagram of the state of use of the conventional use.

Figure 3 is a cross-sectional view of the creation.

Figure 4 is a schematic diagram of the state of use of the present creation.

Figure 5 is a schematic diagram 2 of the state of use of the present creation.

Figure 6 is a schematic diagram of the further use state of the present creation.

Figure 7 is a schematic diagram of another use state of the present creation.

Figure 8 is a schematic diagram 2 of another use state of the present creation.

Figure 9 is a schematic diagram 3 of another use state of the present creation.

Figure 10 is a fourth schematic diagram of another use state of the present creation.

Please refer to FIG. 3, FIG. 4, FIG. 5 and FIG. 6 , which are a cross-sectional view of the creation, a schematic diagram of the state of use and a schematic diagram of further use states. As can be clearly seen from the figure, the conductive elastic piece 3 mainly includes a finger switch 3 is provided with at least one push button 31; a conductive terminal 4 is disposed in the finger switch 3, and has a contact portion 41 extending at one end thereof; a conductive elastic piece 5 is disposed in the finger switch 3 The conductive elastic piece 5 includes a base portion 51 and a bent portion 53. The base portion 51 has a pin 52 extending on one side thereof, and the end portion of the curved portion 53 has a floating elastic contact portion 531. The positioning hole 510 fixed in the dip switch 3 is disposed in the dip switch 3 through the positioning hole 510 on the base 51. When the push button 31 of the dip switch 3 is toggled, the push button 31 is pressed against the dip switch. The contact portion 41 of the inner conductive terminal 4 forces the contact portion 41 to move downward so that the contact portion 41 contacts the elastic contact portion 531 of the conductive elastic piece 5 to achieve the purpose of conducting current; and the elastic contact of the conductive elastic piece 5 is carried out as described above. Part 531 is why The state of being suspended and bent upward is mainly used to increase the space between the contact portion 41 of the conductive terminal 4 and the elastic contact portion 531 of the conductive elastic piece 5, basically, after the push button 31 of the finger switch 3 is toggled, The contact portion 41 of the conductive terminal 4 and the elastic contact portion 531 of the conductive elastic piece 5 are in contact with each other and simultaneously actuated, and since the elastic contact portion 531 is in a suspended state, the elastic contact portion 531 has elasticity, so when the conductive terminal 4 When the contact portion 41 contacts and resists the elastic contact portion 531, the elasticity of the elastic contact portion 531 makes the contact between the contacts 41 more stable, basically, the contact portion 41 and the conductive elastic piece 5 extended by the conductive terminal 4. In the case where the elastic contact portions 531 are all elastic, good contact is caused by the compression generated by the elasticity of the two, and also because the contact portion 41 and the elastic contact portion 531 are both elastic, the compression is evenly distributed between the two. In the case of the stroke, there is no such a situation that the deformation is caused by the overpressure, and thus the creation can maintain a good conduction effect. Furthermore, when the contact portion 41 of the conductive terminal 4 is in contact with and is resisted, The bending portion 53 is a force receiving point, and is not only solely received by the elastic contact portion 531, so that the elastic contact portion 531 can be maintained even under excessive pressing during use. Sexuality, which is not easy to cause elastic fatigue; in addition, as shown in Fig. 6, for the other type of dip switch 6, only the conventional conductive elastic piece of the dip switch 6 needs to be replaced with the created conductive elastic piece 5, and can be used. Since the pin 52, the curved portion 53, and the elastic contact portion 531 of the conductive elastic piece 5 are all extended by the base portion 51, in an integrally formed state, even the dip switch 6 or other structure or the difference from the above embodiment The finger switch of different styles can also be replaced by the conductive elastic piece 5 of the present invention; in summary, the angle determined by the bending is affected by the material after the bending of the metal material is completed due to the elastic coefficient of the metal itself. The characteristic of re-bounced itself can not be effectively fixed at the required bending angle, and the lack of contact failure occurs. The conductive elastic piece 5 of the present invention is designed by the elastic contact portion 531 which is suspended, in addition to increasing the compression space to strengthen Connect In addition to the stability of the touch, it can avoid the problem of elastic fatigue.

Please refer to FIG. 7 , FIG. 8 , FIG. 9 and FIG. 10 , which are schematic diagrams of another use state of the present invention. As is clear from the figure, the same is transmitted through the positioning hole 510 on the base 51 . It is disposed in the dip switch 3, and after the push button 31 of the dip switch 3 is toggled, the push button 31 is pressed against the conductive terminal 4 in the dip switch 3, forcing the contact portion 41 of the conductive terminal 4 to move downward, so that The contact portion 41 is in contact with the elastic contact portion 531 of the conductive elastic piece 5 to achieve the purpose of conducting current; in the above, the elastic contact portion 531 at the end of the curved portion 53 in the foregoing embodiment is bent upward, and the present embodiment For example, the elastic contact portion 531 is in a state of being parallel (as shown in FIG. 7) and being bent downward (as shown in FIG. 9), and the elastic contact portion 531 is different in shape, mainly for conforming to different forms. The conductive terminal 4, but the above-mentioned upward bending, or the state of being parallel and downwardly bent in this embodiment, since the elastic contact portion 531 is in a state of being suspended, it is possible to increase the compression space to strengthen the contact. Stability and the purpose of avoiding the problem of elastic fatigue

The above-exemplified embodiments are used to clarify one of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Anyone skilled in the art can make some changes without departing from the spirit and scope of the present invention. Changes and refinements, so the scope of protection of this creation is subject to the definition of the scope of the patent application.

3‧‧‧Dial switch

31‧‧‧ push button

4‧‧‧Electrical terminals

41‧‧‧Contacts

52‧‧‧ pins

531‧‧‧Flexible contact

Claims (4)

The utility model relates to a double shrapnel dip switch structure, which comprises: a dip switch provided with at least one push button; a conductive terminal disposed in the dip switch, one end of which extends with a contact portion; and a conductive elastic piece disposed on the finger dial In the switch, the conductive elastic piece includes a base portion and a bent portion, wherein one side of the base portion extends with a pin, and the end of the bent portion has a floating elastic contact portion; the push button of the dial switch is used to drive The contact portion of the conductive terminal abuts against the elastic contact portion of the conductive elastic piece, thereby achieving the purpose of conducting current, and is passed through the suspension design of the elastic contact portion to increase the compression space between the conductive terminal and the conductive elastic piece, in addition to enhancing the stability of contact between the two. In addition, it can avoid the problem of elastic fatigue caused by excessive pressing during use. The structure of the double shrapnel finger switch according to claim 1 is improved, wherein a positioning hole is further disposed on the base of the conductive elastic piece for fixing in the finger switch. The double shrapnel finger switch structure according to claim 1 is improved in that it is designed to be elastic through the suspension of the elastic contact portion. The structure of the double shrapnel finger switch according to claim 1 is improved, wherein the contact portion can be one of three aspects of upward bending, parallel bending and downward bending.