CN217902947U

CN217902947U - Noiseless push switch

Info

Publication number: CN217902947U
Application number: CN202222361255.3U
Authority: CN
Inventors: 刘建文
Original assignee: Dongguan Renying Electronic Co ltd
Current assignee: Dongguan Renying Electronic Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2022-11-25
Anticipated expiration: 2032-09-06

Abstract

The utility model relates to a noiseless press switch through set up the lug in the body periphery, and the first end is stretching out this external back along this protruding edge and bending and laminating for the first end obtains supporting and not in unsettled state, and the first portion of pasting that forms after bending of first end and second portion of pasting constitute noiseless press switch's portion of pasting jointly, with the enhancement welding fastness.

Description

Noiseless push switch

Technical Field

The utility model relates to a press the switch technical field, especially relate to a noiseless press the switch.

Background

The utility model discloses a chinese utility model patent of publication number CN204497104U among the prior art, it provides a noiseless switch of big elasticity, be in including base, lid, and setting the button of lid below, button bottom seat is in the base, be equipped with the contact piece in the base, the base top is equipped with a fastener, base four corners or four sides are equipped with four hot melt posts, the fastener outward flange with the corresponding position of hot melt post is equipped with and holds the draw-in groove of hot melt post, the lid edge is equipped with the card falcon, the fastener inboard be equipped with can be right the spacing platform of card falcon.

The prior art mainly has the following defects: firstly, the cover adopts an assembly structure embedded in the base like a common push switch, dust is easy to gather in the process of a long time, so that an additional dustproof part is possibly needed to enhance the dustproof capacity, secondly, the welding surfaces of the contact pieces outside the base are only two positions of the bottom surface, the volume of the whole switch is larger than that of the welding surfaces of the two positions, and the welding firmness is lower; and because most of the welding terminal pins extending out of the base are suspended, the welding terminal pins are easy to deform before welding due to circulation and the like, so that the welding terminal pins cannot be perfectly attached to the welding pads of the circuit board.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to above-mentioned prior art not enough, provide a noiseless press switch.

The embodiment of the utility model provides a noiseless press switch, include: the switch five-gold-piece connector comprises a pressing piece, an elastic pressing piece, a movable contact piece, a first static contact piece, a second static contact piece and a body, wherein the first static contact piece and the second static contact piece are separated from each other; a deep counter bore is formed in the upper surface of the body, and a first contact of the first static contact piece is exposed out of the central part of the inner bottom of the deep counter bore; the second contact of the second static contact piece is annularly exposed out of the edge part of the inner bottom of the deep counterbore, and surrounds the first contact of the first static contact piece; the first contact of the first static contact piece is a dynamic contact position contacted with the dynamic contact piece, and the second contact of the second static contact piece is a static contact position contacted with the dynamic contact piece; the movable contact piece comprises a contact ring and a contact tongue piece which are integrally formed, and the contact tongue piece is positioned at the central position of the contact ring; the moving contact piece is arranged in the deep counter bore and enables the contact ring to be attached to a second contact of the second static contact piece; the contact tongue piece is positioned above the first static contact piece and keeps a non-contact state under a normal state; the elastic pressing piece is arranged in the deep counter bore and attached to the upper surface of the contact ring; wherein: the pressing sheet is buckled outside the body to cover the deep counter bore, and can slide outside the deep counter bore along the pressing direction when being pressed; the outer surface of body has two lugs that respectively extend towards the reverse direction, and the laminating after the first end stretches out along the lower surface and the side surface bending of lug from the bottom surface of body, makes the bottom surface of first end and the bottom surface parallel and level of body and form first subsides dress portion, makes the side of first end form second subsides dress portion, and first subsides dress portion and second subsides dress portion constitution dress portion.

In some embodiments, the top surface of the pressing sheet serves as the pressed part, the bottom surface of the pressing sheet is provided with a circular sleeve hole sleeved on the periphery of the body, and the body is provided with a circular periphery.

In some embodiments, the inner wall of the circular trepanning has a first sliding groove and a second sliding groove which are arranged oppositely, and a first open groove and a second open groove which are arranged oppositely, the circular periphery has a first reverse buckle and a second reverse buckle which are arranged oppositely, and a first sliding block and a second sliding block which are arranged oppositely, the first reverse buckle and the second reverse buckle are buckled in the first sliding groove and the second sliding groove respectively in a relatively slidable manner, and the first sliding block and the second sliding block are embedded in the first open groove and the second open groove respectively in a relatively slidable manner.

In some embodiments, the first sliding groove, the second sliding groove, the first slot and the second slot are all arranged along a tangent line of the circular trepanning, and the first reverse buckle, the second reverse buckle, the first sliding block and the second sliding block are all arranged along a tangent line of the circular periphery.

In some embodiments, the open ends of the first slot and the second slot are respectively provided with a notch formed on the edge of the side wall of the circular trepan boring, and the notch is used for avoiding the lug in the pressing process.

In some embodiments, the bottom surface of the pressing sheet is provided with a circular convex ring.

Compared with the prior art, the embodiment of the utility model provides a noiseless press switch through set up the lug in the body periphery, and the first end is stretching out this external back along this protruding edge and bending and laminating for the first end obtains supporting and not in unsettled state, and the first portion of subsides that the first end formed after bending and second portion of subsides constitute noiseless press switch's portion of subsides jointly, in order to strengthen the welding fastness.

The details of one or more embodiments of the invention are set forth in the accompanying drawings and the description below to provide a more concise and understandable description of other features, objects, and advantages of the invention.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is an assembly structure view of a silent push switch according to an embodiment of the present invention.

Fig. 2 is a structural view of a pressing piece according to an embodiment of the present invention.

Fig. 3 is a first exploded view of the silent push switch according to the embodiment of the present invention.

Fig. 4 is an exploded view of the silent push switch according to the embodiment of the present invention.

In the figure, 1, a pressing sheet; 2. an elastic pressing piece; 3. a movable contact piece; 4. a first stationary contact piece; 5. a second stationary contact piece; 6. a body; 8. a first end portion; 9. deep counter bore; 10. a first contact; 11. a second contact; 12. a contact ring; 13. a contact tongue; 14. circular trepanning; 15. a circular periphery; 16. a bump; 17. a first mounting portion; 18. a second mounting section; 19. a first chute; 20. a second chute; 21. a first slot; 22. a second slot; 23. a first reverse buckle; 24. a second back-off; 25. a first slider; 26. a second slider; 27. a notch; 28. a circular convex ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described and illustrated with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Based on the embodiments provided by the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Moreover, it should be further appreciated that, although such a development effort might be complex and tedious, it would be appreciated by those skilled in the art that variations in design, fabrication, or manufacture based on the teachings herein may be made without departing from the general principles of the present disclosure, and such variations are not to be considered as a departure from the spirit and scope of the present disclosure.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one of ordinary skill in the art that the described embodiments of the present invention can be combined with other embodiments without conflict.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as is commonly understood by one of ordinary skill in the art to which this invention belongs. The use of the terms "a" and "an" and "the" and similar referents in the context of describing the invention are not to be construed as limiting the number, but may be construed to cover both the singular and the plural. The present invention relates to the terms "comprises," "comprising," "includes," "including," "has," "having" and any variations thereof, which are intended to cover non-exclusive inclusions; for example, a process, method, system, article, or apparatus that comprises a list of steps or modules (elements) is not limited to the listed steps or elements, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. The terms "connected," "coupled," and the like in the description may not be limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The utility model relates to a "a plurality of" means more than or equal to two. "and/or" describes an association relationship of associated objects, meaning that three relationships may exist, for example, "A and/or B" may mean: a exists alone, A and B exist simultaneously, and B exists alone. The terms "first," "second," "third," and the like in the description of the invention are used merely to distinguish between similar objects and not necessarily to represent a particular ordering for the objects.

As shown in fig. 1-4, the embodiment of the present invention provides a silent push switch, including: the pressing piece 1, the elastic pressing piece 2, the movable contact piece 3, the first fixed contact piece 4 and the second fixed contact piece 5 which are separated from each other, and the body 6.

The first and second stationary contact pieces 4 and 5 of the present embodiment are respectively integrally formed with the corresponding switch five-piece tabs 7 and are wrapped on the body 6, and meanwhile, the first end portion 8 of the switch five-piece tabs 7 extends out from the bottom surface of the body 6 as a mounting portion so as to be electrically connected with the circuit board. A circular deep counterbore 9 is formed in the upper surface of the body 6, and a first contact 10 of the first static contact piece 4 is exposed out of the central part of the inner bottom of the deep counterbore 9; the second contact 11 of the second static contact piece 5 is annularly exposed at the edge part of the inner bottom of the deep counterbore 9 and surrounds the first contact 10 of the first static contact piece 4; a first contact 10 of the first static contact piece 4 is a dynamic contact position contacted with the dynamic contact piece 3, and a second contact 11 of the second static contact piece 5 is a static contact position contacted with the dynamic contact piece 3; the movable contact piece 3 comprises a contact ring 12 and a contact tongue piece 13 which are integrally formed, and the contact tongue piece 13 is positioned in the center of the contact ring 12; the movable contact piece 3 is arranged in the deep counterbore 9, and the contact ring 12 is attached to the second contact 11 of the second static contact piece 5; the contact tongue 13 is located above the first stationary contact piece 4 and is kept in a non-contact state in a normal state; the elastic pressing piece 2 is arranged in the deep counterbore 9 and is attached to the upper surface of the contact ring 12.

In order to improve the phenomenon of jamming around the pressing part, improve the smoothness of the pressing part and realize dust prevention on the basis of simplifying the composition structure, the pressing sheet 1 of the embodiment is buckled outside the body 6 so as to cover the deep counter bore 9, and the pressing sheet 1 can slide outside the deep counter bore 9 along the pressing direction when being pressed. The top surface of the pressing sheet 1 serves as a pressed part, the bottom surface of the pressing sheet 1 is provided with a circular sleeve hole 14 which is sleeved on the periphery of the body 6, the body 6 is provided with a circular periphery 15, the clamping around the pressing can be reduced due to the matching of the circular sleeve hole 14 and the circular periphery 15, so that the pressing is smoother, and the deep counter bore 9 of the whole body 6 is coated by the pressing sheet 1, so that a better dustproof effect can be achieved, and a dustproof cover body accessory does not need to be specially added.

In order to support the first end portion 8 of the switch five-piece gold 7 and improve the firmness of the welding surface, the outer surface of the body 6 of the embodiment is provided with two lugs 16 which respectively extend towards the opposite directions, the first end portion 8 extends out of the bottom surface of the body 6 and is then bent along the lower surface and the side surface of the lug 16 and then attached, the bottom surface of the first end portion 8 is flush with the bottom surface of the body 6 to form a first attaching portion 17, the side surface of the first end portion 8 forms a second attaching portion 18, and the first attaching portion 17 and the second attaching portion 18 form the attaching portion. When the present embodiment is welded, the first mounting portion 17 and the pad are welded and fixed by the first solder, and the second mounting portion 18 and the pad are welded and fixed by the second solder, the first solder and the second solder are generally the same solder, so that the welding firmness of the silent press switch of the present embodiment on the circuit board is enhanced, although the welding is performed by only two pads, the welding positions can be subdivided and increased to four positions, which is improved compared with two positions in the prior art. Meanwhile, the structure scheme that the pins are used for perforating the circuit board for improving the firmness can be avoided.

In order to realize the sleeved buckling movable assembly between the pressing sheet 1 and the body 6, the inner wall of the circular trepanning 14 of the embodiment is provided with a first sliding groove 19 and a second sliding groove 20 which are oppositely arranged and a first open groove 21 and a second open groove 22 which are oppositely arranged, the circular periphery 15 is provided with a first reverse buckle 23 and a second reverse buckle 24 which are oppositely arranged and a first sliding block 25 and a second sliding block 26 which are oppositely arranged, the first reverse buckle 23 and the second reverse buckle 24 are respectively buckled in the first sliding groove 19 and the second sliding groove 20 in a relatively sliding way, and the first sliding block 25 and the second sliding block 26 are respectively embedded in the first open groove 21 and the second open groove 22 in a relatively sliding way. The first sliding groove 19, the second sliding groove 20, the first open groove 21 and the second open groove 22 are arranged along the tangent of the circular trepanning 14 respectively, the first reverse buckle 23, the second reverse buckle 24, the first sliding block 25 and the second sliding block 26 are arranged along the tangent of the circular periphery 15 respectively, the circumferential fit between the circular trepanning 14 and the circular periphery 15 is kept, and the pressing smoothness is guaranteed.

In order to ensure the pressing stroke range and reduce the thickness of the entire silent press switch as much as possible on the basis of ensuring the preset thickness, the opening ends of the first open slot 21 and the second open slot 22 of the present embodiment are respectively provided with a notch 27 formed on the edge of the side wall of the circular trepan boring 14, and the notch 27 is used for avoiding the bump 16 during the pressing process, so as to avoid the restriction of the pressing stroke of the pressing sheet 1 due to the arrangement of the bump 16.

In order to improve the pressing reliability of the silent press switch, the bottom surface of the pressing sheet 1, namely the bottom surface of the circular sleeve hole 14, is provided with a circular convex ring 28 which limits the top of the elastic pressing piece 2 and avoids the pressing failure caused by the deviation of the elastic pressing piece 2 from a preset position.

The working principle of the present embodiment is the same as that of the existing push switch, and is not described herein again.

It should be understood by those skilled in the art that various features of the above-described embodiments can be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments are not described in detail, but rather, all combinations of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A silent push switch comprising: the switch five-gold-piece pressing device comprises a pressing piece (1), an elastic pressing piece (2), a movable contact piece (3), a first static contact piece (4) and a second static contact piece (5) which are separated from each other, and a body (6), wherein the first static contact piece (4) and the second static contact piece (5) are respectively connected with a corresponding switch five-gold piece (7) or integrally formed and coated on the body (6), and meanwhile, a first end part (8) of the switch five-gold piece (7) is used as a mounting part and extends out of the bottom surface of the body (6) so as to be electrically connected with a circuit board;

a deep counterbore (9) is formed in the upper surface of the body (6), and a first contact (10) of the first static contact piece (4) is exposed out of the central part of the inner bottom of the deep counterbore (9); a second contact (11) of the second static contact piece (5) is annularly exposed out of the edge part of the inner bottom of the deep counterbore (9) and surrounds a first contact (10) of the first static contact piece (4); a first contact (10) of the first static contact piece (4) is a dynamic contact position contacted with the dynamic contact piece (3), and a second contact (11) of the second static contact piece (5) is a static contact position contacted with the dynamic contact piece (3);

the movable contact piece (3) comprises a contact ring (12) and a contact tongue piece (13) which are integrally formed, and the contact tongue piece (13) is positioned at the center of the contact ring (12); the movable contact piece (3) is arranged in the deep counterbore (9) and enables the contact ring (12) to be attached to a second contact (11) of the second static contact piece (5); the contact tongue piece (13) is positioned above the first static contact piece (4) and is kept in a non-contact state in a normal state;

the elastic pressing piece (2) is arranged in the deep counter bore (9) and attached to the upper surface of the contact ring (12);

the method is characterized in that: the pressing sheet (1) is buckled outside the body (6) to cover the deep counter bore (9), and the pressing sheet (1) can slide outside the deep counter bore (9) along the pressing direction when being pressed;

the surface of body (6) has two lugs (16) towards reverse extension respectively, first end (8) are followed the bottom surface of body (6) stretches out the back edge the laminating after lower surface and the side surface of lug (16) are bent makes the bottom surface of first end (8) with the bottom surface parallel and level of body (6) just form first subsides dress portion (17), make the side of first end (8) forms second subsides dress portion (18), first subsides dress portion (17) and second subsides dress portion (18) are constituteed subsides dress portion.

2. A silent push switch according to claim 1, wherein the top surface of the push plate (1) is the pressed portion, the bottom surface of the push plate (1) has a circular hole (14) that fits around the outer periphery of the body (6), and the body (6) has a circular outer periphery (15).

3. A silent push switch according to claim 2, wherein the inner wall of the circular trepanning (14) has a first sliding slot (19) and a second sliding slot (20) which are arranged oppositely and a first open slot (21) and a second open slot (22) which are arranged oppositely, the circular outer periphery (15) has a first back-off button (23) and a second back-off button (24) which are arranged oppositely and a first sliding block (25) and a second sliding block (26) which are arranged oppositely, the first back-off button (23) and the second back-off button (24) are respectively buckled in the first sliding slot (19) and the second sliding slot (20) in a relatively slidable manner, and the first sliding block (25) and the second sliding block (26) are respectively buckled in the first open slot (21) and the second open slot (22) in a relatively slidable manner.

4. A silent push switch according to claim 3, wherein said first runner (19), second runner (20), first slot (21) and second slot (22) are each located along a tangent to said circular trepan (14), and said first undercut (23), second undercut (24), first slider (25) and second slider (26) are each located along a tangent to said circular periphery (15).

5. A silent push switch according to claim 3, characterized in that the open ends of said first slot (21) and second slot (22) each have a notch (27) formed in the edge of the side wall of said circular trepan (14), said notches (27) being adapted to clear said protrusion (16) during pushing.

6. A silent push switch according to claim 1, characterized in that the bottom surface of the push plate (1) has a circular convex ring (28).