CN201171003Y - Push switch - Google Patents

Abstract

The utility model discloses a push switch, which is characterized in that a holding groove is concavely arranged on the central surface of an insulating seat body, the surface of the base part of the conductive terminal is protruded with a contact part positioned in the containing groove, the surface of the contact part is provided with at least more than one groove, a conductive elastic sheet positioned on the contact part is arranged in the containing groove, and the center surface of the conductive elastic sheet is formed with an arched pressing part and an abutting part extending downwards from the side edge around the pressing part, so that the abutting part of the conductive elastic sheet is electrically connected with one contact part of the plurality of conductive terminals, and a pressing piece is assembled above the insulating seat body, when the pressing piece is pressed downwards, the pressing part of the conductive elastic sheet can form an electrical contact with the other contact part after being pressed, and by the design of the contact part groove of the plurality of conductive terminals, dust and dirt can be accumulated in the groove, and the situation that the electric contact between the conductive elastic sheet and the contact part is poor or the action is not smooth due to the dust and dirt is avoided.

Description

push switch

technical field

The invention provides a push switch, which belongs to the field of electrical appliances, and specifically belongs to the technical field of push-type electric switches.

Background technique

At present, push switches are widely used, and most of their structural designs are provided with accommodating grooves on the base body, while a plurality of contact terminals are arranged in the accommodating grooves, and conductive shrapnel are arranged in the accommodating grooves of the base body, and a cover The board is installed on the base body, and a pressing piece is installed between the base body and the cover plate; when in use, the pressing piece can be pressed downward against the conductive shrapnel by applying force, so that the conductive shrapnel electrically contacts the A plurality of contact terminals are used as switches, but the above-mentioned structural design still has many inconveniences in use. For example, during the operation process, the conductive shrapnel is easily deformed due to repeated force or uneven force, resulting in displacement of the conductive shrapnel, which is serious. Affect the stability and quality of electrical contacts.

Contents of the invention

The object of the present invention is to provide a push switch which is safer and more stable than the prior art, which avoids poor electrical contact or unsmooth operation caused by dust and dirt during the push action.

In order to achieve the above object, the technical scheme adopted by the push switch of the present invention is as follows:

A push switch, including an insulating base body, a plurality of conductive terminals, conductive shrapnel and pressing parts; wherein:

An accommodating groove is recessed in the central surface of the insulating base;

Each of the plurality of conductive terminals has a base, and a contact portion protruding from the surface of the base is located in the accommodation groove, and the surface of the contact portion is provided with at least one groove;

The conductive elastic piece is arranged in the accommodation groove of the insulating base body, and an arched pressing part is formed on the central surface of the conductive elastic piece, and an abutment part extends downward around the side of the pressing part;

The pressing part is assembled above the insulating seat body, and a pressing part is formed on the surface of the base of the pressing part, and a pressing part contacting the surface of the pressing part is formed on the bottom surface of the base.

The four sides of the surface of the insulating seat body are respectively provided with positioning grooves, and the side of the base of the pressing piece extends outwards with a positioning portion snapped into the positioning grooves.

The top of the pressing part is covered with a top cover, and the left and right outer walls of the insulating base are provided with a plurality of projections, and the sides of the top cover respectively extend downwards with fastening parts that are fastened on the projections.

The central surface of the upper cover is provided with a through hole through which the pressing part of the pressing part can pass.

The plurality of conductive terminals are integrally formed in the insulating seat body.

One side of the base of the plurality of conductive terminals extends with a welding portion exposed outside the insulating seat.

The conductive shrapnel can be in the shape of a disc.

The abutting portion of the conductive elastic piece is electrically connected to one contact portion of the plurality of conductive terminals, and the pressing portion is in electrical contact with the other contact portion after being pressed.

The pressing member can be made of rubber, silicone or other flexible materials.

After adopting the above technical solution of the present invention, at least one groove is provided on the surface of the contact part of the plurality of conductive terminals. When the pressing part is actuated, the dust and microchips that enter partly accumulate in the groove through the design of the groove. In the groove, avoid the occurrence of poor electrical contact or unsmooth movement due to dust and dirt.

At the same time, due to the design of the grooves for the plurality of conductive terminals, the edge of the abutting portion of the conductive shrapnel and the contact portion of the conductive terminal can form a multi-point support. Displacement problems are caused by uneven force, which in turn has the effect of stabilizing the conductive quality and making the conductive shrapnel not easy to slide.

Description of drawings

Fig. 1 is a three-dimensional appearance view of a preferred embodiment of the present invention;

Figure 2 is an exploded perspective view of a preferred embodiment of the present invention;

Fig. 3 is a partial three-dimensional sectional view of a preferred embodiment of the present invention;

Fig. 4 is the schematic diagram of the present invention before pressing;

Fig. 5 is a schematic diagram of the present invention after pressing.

Description of main component symbols

1. Insulation base

11. Accommodating slot 13. Protrusion

12. Positioning slot

2. Multiple conductive terminals

21. Base 23. Groove

22. Contact part 24. Welding part

3. Conductive shrapnel

31. Pressing part 32. Contact part

4. Press parts

41. Base part 43. Pressure part

42. Pressing part 44. Positioning part

5. Upper cover

51. Through hole 52. Fastening part

Detailed ways

In order to achieve the above-mentioned purpose and effect, the technical means and the structure thereof adopted in the present invention are hereby illustrated in detail with respect to the preferred embodiments of the present invention. Its features and functions are as follows, so as to fully understand.

Please refer to Fig. 1, Fig. 2 and Fig. 3 at the same time, which are the three-dimensional appearance diagram, three-dimensional exploded view and partial three-dimensional sectional view of a preferred embodiment of the present invention. It can be clearly seen from the figure that the push-to-open relationship of the present invention It is composed of an insulating base body 1, a plurality of conductive terminals 2, a conductive shrapnel 3 and a pressing piece 4; among them:

The central surface of the insulating seat body 1 has a recessed accommodation groove 11, and four sides of the surface of the insulating seat body 1 are respectively provided with positioning grooves 12, while the left and right outer walls of the insulating seat body 1 are provided with a plurality of protrusions 13.

The plurality of conductive terminals 2 are integrally formed in the insulating base 1, and the plurality of conductive terminals 2 respectively have a base portion 21, and a contact portion 22 located in the receiving groove 11 protrudes from the surface of the base portion 21, and the surface of the contact portion 22 is At least one groove 23 is provided, and a welding portion 24 extending from one side of the base 21 is exposed outside the insulating base 1 .

The conductive elastic piece 3 is in the shape of a disk, and the conductive elastic piece 3 is arranged in the accommodating groove 11 of the insulating base 1, and an arched pressing part 31 is formed on the central surface of the conductive elastic piece 3, and the pressing part A contact portion 32 that electrically contacts with the plurality of conductive terminals 2 extends downwards from the sides around 31 .

The pressing piece 4 can be made of rubber, silicone or other flexible materials, and the pressing piece 4 is assembled on the top of the insulating base 1, and a pressing portion 42 is formed on the surface of the base 41 of the pressing piece 4, and the base 41 A pressing portion 43 is formed on the bottom surface, and a positioning portion 44 extends outward from a side of the base portion 41 .

Furthermore, the top of the insulating base 1 is covered with an upper cover 5 , and the central surface of the upper cover 5 is provided with a through hole 51 , and the left and right sides of the upper cover 5 respectively have buckling portions 52 extending downward.

Please refer to Fig. 3, Fig. 4, and Fig. 5 at the same time, which are partial three-dimensional sectional views of a preferred embodiment of the present invention, a schematic diagram before pressing and a schematic diagram after pressing. It can be clearly seen from the figure that by When the above-mentioned components are assembled, the plurality of conductive terminals 2 are injected and coated in the insulating base body 1, so that the contact portions 22 of the plurality of conductive terminals 2 are located in the accommodation groove 11 of the insulating base body 1, while the welding portion 24 is exposed. The outside of the insulating base 1 is electrically connected to the preset circuit board, and the conductive elastic piece 3 is placed in the accommodating groove 11, so that the contact portion 32 of the conductive elastic piece 3 and the contact portion 22 of the plurality of conductive terminals 2 are in contact with each other, Then the pressing piece 4 is installed on the top of the insulating base 1, so that the positioning part 44 on the side of the pressing piece 4 is fixed in the positioning groove 12 of the insulating base 1, and the pressing part 43 is in contact with the conductive spring 3. Above the pressing part 31, the upper cover 5 can then be assembled on the insulating base 1, and after the pressing part 42 of the pressing member 4 passes through the through hole 51 of the upper cover 5, the fastening part 52 of the upper cover 5 is buckled. Fitting on the corresponding bump 13 on the side of the insulating base body 1, the overall assembly of the present invention can be completed.

When the present invention is in use, it is mainly to apply a downward force to the pressing part 41 of the pressing part 4, so that the pressing part 43 of the pressing part 4 forms an elastic deformation to push the pressing part 31 of the conductive elastic piece 3 to move downward. That is, the pressing part 32 of the conductive elastic piece 3 is in electrical contact with the contact part 22 of one of the plurality of conductive terminals 2, and the open circuit of the plurality of conductive terminals 2 is changed into a path by the conductive elastic piece 3, and then the pressing switch can be connected to The OFF state is switched to the ON state; when the force of the pressing part 42 of the pressing part 4 is released, the pressing part 32 of the conductive shrapnel 3 can be separated from the contact part 22 of one of the plurality of conductive terminals 2, and the release between Electrically connected to switch the push switch from the ON state to the OFF state.

The push switch of the present invention is that the technical key that can improve conventionally is:

1. Since the pressing part 4 is in motion, it is inevitable that some dust and fine particles will enter the receiving groove 11, so at least one or more grooves 23 are formed on the surface of the contact part 22 on the plurality of conductive terminals 2, so that Dust and dirt can be accumulated in the groove 23 to avoid poor electrical contact or unsmooth movement due to dust and dirt.

2. With the design of the groove 23, the plurality of conductive terminals 2 can make the edge of the abutting part 32 of the conductive spring 3 and the contact part 22 form a multi-point support. Displacement problems are caused by force deformation or uneven application of force, which further has the effect of stable conductive quality and the conductive shrapnel 3 is not easy to slide.

The above detailed description is just a description of a preferred feasible embodiment of the present invention, but this embodiment is not used to limit the scope of the patent application of the present invention, and all other equivalent changes that do not deviate from the spirit of the technology disclosed in the present invention All modifications and modifications shall be included in the patent scope covered by the present invention.

Claims (9)

1, a kind of push switch includes insulating base frame, complex conduction terminal, electroconductive elastic sheet and pressing piece and forms; It is characterized in that:

This insulating base frame central surface indent has a storage tank;

This complex conduction terminal has a base portion respectively, and is protruding with the contact site that is positioned at storage tank in base surface, and the contact site surface then offers at least more than one groove;

This electroconductive elastic sheet is to be arranged in the storage tank of insulating base frame, and is formed with the portion that presses that arches upward in the electroconductive elastic sheet central surface, and side then is extended with abutting part downwards around the portion of pressing;

This pressing piece is for being assembled in insulating base frame top, and is formed with a press section in the base surface of pressing piece, and the base portion bottom surface then is formed with and is contacted with the pressure section that presses the portion surface.

2, push switch as claimed in claim 1 is characterized in that the four side on this insulating base frame surface is respectively equipped with location notch, and the base portion side of pressing piece then is outward extended with the location division that is connected in location notch.

3, push switch as claimed in claim 1 is characterized in that this pressing piece top cover is covered with loam cake, and the left and right lateral wall of insulating base frame is provided with plural projection, and the loam cake side then is extended with the snapping portion that is fastened on the projection respectively downwards.

4, push switch as claimed in claim 3 is characterized in that this loam cake central surface offers the through hole that can supply the pressing piece press section to wear.

5, push switch as claimed in claim 1 is characterized in that this complex conduction terminal is formed in one in insulating base frame.

6, push switch as claimed in claim 1 is characterized in that base portion one side of this complex conduction terminal is extended with the weld part that exposes outside the insulating base frame.

7, push switch as claimed in claim 1 is characterized in that this electroconductive elastic sheet can be one discoid.

8, push switch as claimed in claim 1, it is characterized in that the abutting part of this electroconductive elastic sheet and complex conduction terminal wherein a contact site be electric connection, be electrical with another contact site behind portion's pressurized and contact and press.

9, push switch as claimed in claim 1, it is made to it is characterized in that this pressing piece can be rubber, silica gel or other flexible material.

Images