CN216957808U

CN216957808U - Elastic piece microswitch

Info

Publication number: CN216957808U
Application number: CN202220296105.6U
Authority: CN
Inventors: 丁姝炜; 张建明; 章海标
Original assignee: Songjiang Feifan Electronic Co ltd
Current assignee: Songjiang Feifan Electronic Co ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-12
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a spring plate microswitch, which comprises: an upper cover body; a lower cover body, the upper cover body and the lower cover body being operatively mounted; the movable elastic sheet comprises a first contact sheet and a second contact sheet, the first contact sheet and the second contact sheet are arranged in an L shape, one end of the first contact sheet is connected with one end of the second contact sheet, and the other end of the first contact sheet extends downwards and penetrates through the lower cover body; one end of the static elastic sheet is arranged in the lower accommodating cavity, and the other end of the static elastic sheet extends downwards and penetrates through the lower cover body; and the switch piece can operatively drive the other end of the second contact piece to abut against one end of the static elastic piece. By applying the utility model, the elastic sheet micro-switch convenient for quick installation is provided, the upper cover body and the lower cover body are operably installed, and the whole elastic sheet micro-switch can control the circuit communication only by three parts, namely the movable elastic sheet, the static elastic sheet and the switch piece.

Description

Elastic piece microswitch

Technical Field

The utility model relates to the technical field of alarm switches, in particular to a spring plate microswitch.

Background

The microswitch is a switch with micro contact interval and quick-acting mechanism, and is covered with a casing and has a driving part outside it for its small contact interval. The microswitch structure of pressing in the alarm is comparatively complicated to current being applied to, has contact failure problem during the use, and secondly, the installation of the current microswitch's of being applied to in the press alarm shell is comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve the above problems, an object of the present invention is to provide a dome microswitch, comprising:

the lower surface of the upper cover body is provided with an opening, and an upper accommodating cavity is formed in the upper cover body;

the upper cover body and the lower cover body are operably installed, and the upper accommodating cavity is communicated with the lower accommodating cavity;

the movable elastic sheet is arranged in the lower accommodating cavity and comprises a first contact piece and a second contact piece which are sequentially connected, the first contact piece and the second contact piece are arranged in an L shape, one end of the first contact piece is connected with one end of the second contact piece, and the other end of the first contact piece extends downwards and penetrates through the lower cover body;

one end of the static elastic sheet is arranged in the lower accommodating cavity, and the other end of the static elastic sheet extends downwards and penetrates through the lower cover body;

and the switch piece can be arranged on the upper cover body in a vertically sliding manner, and the switch piece can operably drive the other end of the second contact piece to abut against one end of the static elastic piece.

In another preferred embodiment, a fixing piece is respectively arranged on two sides of the upper cover body, and a strip hole is respectively arranged on the two fixing pieces, and the two strip holes are respectively and operatively clamped with the lower cover body.

In another preferred embodiment, two sides of the lower cover body are respectively provided with a groove, the two grooves are respectively matched with the two fixing pieces, a convex block is respectively arranged in the two grooves, and the two elongated holes are respectively and operatively clamped with the two convex blocks.

In another preferred embodiment, a plurality of positioning blocks are arranged on the inner wall of the upper accommodating cavity, the plurality of positioning blocks are arranged to protrude out of the lower surface of the upper cover body, and the plurality of positioning blocks can extend into the lower accommodating cavity in an operable mode.

In another preferred embodiment, a mounting hole is provided on the upper surface of the upper cover body, and the switch member is slidably mounted in the mounting hole.

In another preferred embodiment, two baffles are arranged in the upper cavity, the two baffles are arranged on the upper surface of the upper cover body, and the two baffles are arranged on two sides of the mounting hole.

In another preferred embodiment, the lower surface of the lower cover body is provided with two through holes, the two through holes are respectively arranged at two sides of the lower cover body, the first contact piece is arranged in one through hole, and the static elastic piece is arranged in the other through hole.

In another preferred embodiment, the other end of the first contact piece extends outwards to form a first limiting piece, one end of the static elastic piece extends outwards to form a second limiting piece, the upper ends of the first limiting pieces are all abutted against the lower end of one positioning block, and the upper ends of the second limiting pieces are all abutted against the lower end of the other positioning block.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following positive effects: by applying the utility model, the elastic sheet micro-switch convenient for quick installation is provided, the upper cover body and the lower cover body are installed in an operable way, and the whole elastic sheet micro-switch can control the circuit communication only by three parts, namely the movable elastic sheet, the static elastic sheet and the switch element.

Drawings

FIG. 1 is a front view of a dome microswitch of the present invention;

FIG. 2 is a left side view of the microswitch of the present invention;

FIG. 3 is a front view of the upper cover of the microswitch with resilient tabs according to the present invention;

FIG. 4 is a bottom view of the upper cover of the dome microswitch of the present invention;

FIG. 5 is a top view of a lower cover of the dome microswitch of the present invention;

FIG. 6 is a cross-sectional view of a lower cover of a dome microswitch of the present invention;

FIG. 7 is a schematic view of a movable dome of a dome microswitch according to the present invention;

fig. 8 is a schematic view of a static dome of a dome microswitch of the present invention.

In the drawings: 1. an upper cover body; 2. a lower cover body; 3. a movable spring plate; 4. a first contact pad; 5. a second contact pad; 6. a static spring plate; 7. a switch member; 8. a fixing sheet; 9. a strip hole; 10. a groove; 11. a bump; 12. positioning blocks; 13. mounting holes; 14. a baffle plate; 15. a through hole; 16. a first limiting sheet; 17. a second limiting sheet.

Detailed Description

The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

As shown in fig. 1 to 8, a dome microswitch according to a preferred embodiment is shown, comprising:

the lower surface of the upper cover body 1 is provided with an opening, and an upper accommodating cavity is formed in the upper cover body 1;

the upper cover body 1 and the lower cover body 2 are installed in an operable mode, and the upper containing cavity and the lower containing cavity are arranged in a communicated mode;

the movable elastic sheet 3 is arranged in the lower accommodating cavity, the movable elastic sheet 3 comprises a first contact piece 4 and a second contact piece 5 which are sequentially connected, the first contact piece 4 and the second contact piece 5 are arranged in an L shape together, one end of the first contact piece 4 is connected with one end of the second contact piece 5, and the other end of the first contact piece 4 extends downwards and penetrates through the lower cover body 2;

one end of the static elastic sheet 6 is arranged in the lower accommodating cavity, and the other end of the static elastic sheet 6 extends downwards and penetrates through the lower cover body 2;

and the switch piece 7 is arranged on the upper cover body 1 in a vertically sliding mode, and the switch piece 7 is operable to drive the other end of the second contact piece 5 to abut against one end of the static elastic piece 6.

In the actual use process, install movable elastic sheet 3 and static elastic sheet 6 in the lower holding cavity of lower lid 2 earlier, but install switch 7 on last lid 1 with upper and lower slip, then install last lid 1 and lower lid 2, the second contact piece 5 of movable elastic sheet 3 offsets with switch 7 this moment, install the other end of first contact piece 4 and the other end of static elastic sheet on the circuit board, press switch 7, the other end of drive second contact piece 5 moves downwards and contradicts with the one end of static elastic sheet 6, can form the route.

Further, as a preferred embodiment, two fixing pieces 8 are respectively disposed on two sides of the upper cover 1, two strip holes 9 are disposed on the two fixing pieces 8, and the two strip holes 9 are operatively connected to the lower cover 2.

Further, as a preferred embodiment, two grooves 10 are respectively formed on two sides of the lower cover 2, the two grooves 10 are respectively matched with the two fixing pieces 8, a projection 11 is respectively formed in the two grooves 10, and the two elongated holes 9 are operatively and respectively engaged with the two projections 11.

Further, as a preferred embodiment, the two grooves 10 are disposed along the vertical direction, the cross section of the two grooves 10 along the horizontal direction is "concave", two sides of each groove 10 are respectively provided with a limit edge, and two sides of the two fixing pieces 8 are operatively connected with the limit edges on two sides of each groove 10 in a clamping manner.

Further, as a preferred embodiment, the two bumps 11 are both wedge-shaped, the upper end of each bump 11 is provided with an inclined surface, the inclined surface is disposed on one side of the bump 11 away from the lower cover 2, the upper end of the inclined surface is disposed close to the lower cover 2, and the lower end of the inclined surface is disposed away from the lower cover 2, further, the two fixing pieces 8 have certain elasticity, during the installation process, the lower end of each fixing piece 8 firstly abuts against the upper end of the inclined surface of one bump 11, and the lower end of each fixing piece 8 passes through the inclined surface of one bump 11 from top to bottom until the two bumps 11 are respectively and completely sleeved in the two elongated holes 9, so that the lower ends of the two elongated holes 9 are respectively and tightly connected with the lower edges of the two bumps 11.

Furthermore, as a preferred embodiment, a plurality of positioning blocks 12 are disposed on the inner wall of the upper receiving cavity, the plurality of positioning blocks 12 are all protruded from the lower surface of the upper cover body 1, the plurality of positioning blocks 12 all operatively extend into the lower receiving cavity, and further, the plurality of positioning blocks 12 form a rectangular outer contour matched with the corresponding inner contour of the lower receiving cavity, that is, the outer side of each positioning block 12 should be closely attached to the inner wall of the lower receiving cavity

Further, as a preferred embodiment, a mounting hole 13 is provided on the upper surface of the upper cover 1, and the switch member 7 is slidably mounted in the mounting hole 13.

Further, as a preferred embodiment, two baffles 14 are disposed in the upper cavity, the two baffles 14 are disposed on the upper surface of the upper cover 1, and the two baffles 14 are disposed on two sides of the mounting hole 13.

Further, as a preferred embodiment, the two blocking plates 14 are respectively disposed on two sides of the switch 7, and when the switch 7 slides up and down, the two blocking plates 14 can prevent the switch 7 from shifting in the horizontal direction, thereby playing a role in limiting.

Further, as a preferred embodiment, two through holes 15 are formed on the lower surface of the lower cover 2, the two through holes 15 are respectively disposed on two sides of the lower cover 2, the first contact piece 4 is mounted in one through hole 15, and the static elastic piece 6 is mounted in the other through hole 15.

Further, as a preferred embodiment, the other end of the first contact piece 4 extends outward to form a first limiting piece 16, one end of the static elastic piece 6 extends outward to form a second limiting piece 17, the upper end of the first limiting piece 16 abuts against the lower end of one positioning block 12, and the upper end of the second limiting piece 17 abuts against the lower end of the other positioning block 12.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.

The present invention also has the following embodiments in addition to the above:

in a further embodiment of the present invention, a boss is disposed on the upper surface of the upper cover 1, the boss is disposed on the mounting hole 13, a limiting hole is disposed on the boss, an axis of the limiting hole is disposed along a vertical direction, and the limiting hole is communicated with the mounting hole 13 to prevent the switch member 7 from shaking in a horizontal direction.

While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A dome microswitch comprising:

the lower surface of the upper cover body is provided with an opening, and an upper accommodating cavity is formed in the upper cover body; the upper cover body and the lower cover body are operably installed, and the upper accommodating cavity is communicated with the lower accommodating cavity;

the movable elastic sheet is arranged in the lower accommodating cavity and comprises a first contact piece and a second contact piece which are sequentially connected, the first contact piece and the second contact piece are jointly arranged in an L shape, one end of the first contact piece is connected with one end of the second contact piece, and the other end of the first contact piece extends downwards and penetrates through the lower cover body;

and the switch piece is arranged on the upper cover body in a vertically sliding manner and can be used for operably driving the other end of the second contact piece to abut against one end of the static elastic sheet.

2. The dome microswitch of claim 1, wherein a securing tab is provided on each side of said upper cover, and a slot is provided in each of said securing tabs, said slots being operatively engaged with said lower cover.

3. The dome microswitch of claim 2, wherein a groove is provided on each side of said lower cover, said grooves are respectively matched with said two fixing tabs, a projection is provided in each of said grooves, and said two elongated holes are operatively engaged with said two projections.

4. The dome microswitch of claim 1, wherein a plurality of positioning blocks are disposed on an inner wall of said upper receiving chamber, wherein a plurality of said positioning blocks are disposed to protrude from a lower surface of said upper cover body, and wherein a plurality of said positioning blocks are operable to extend into said lower receiving chamber.

5. The dome microswitch of claim 1, wherein a mounting hole is provided on the upper surface of said upper cover body, said switch member being slidably mounted in said mounting hole.

6. The dome microswitch of claim 5, wherein two baffles are disposed within said upper cavity, said two baffles being disposed on an upper surface of said upper cover, said two baffles being disposed on opposite sides of said mounting hole.

7. The spring plate microswitch of claim 1, wherein the lower surface of the lower cover body is provided with two through holes, the two through holes are respectively arranged at two sides of the lower cover body, the first contact piece is arranged in one through hole, and the static spring plate is arranged in the other through hole.

8. The spring plate microswitch of claim 4, wherein the other end of the first contact plate extends outwards to form a first limiting plate, one end of the static spring plate extends outwards to form a second limiting plate, the upper ends of the first limiting plates are abutted against the lower end of one positioning block, and the upper ends of the second limiting plates are abutted against the lower end of the other positioning block.