CN217822481U

CN217822481U - Silica gel elastic key with riveting and holding structure

Info

Publication number: CN217822481U
Application number: CN202221737636.0U
Authority: CN
Inventors: 朱德强; 秦春龙; 金益星; 习建军
Original assignee: Dongguan Songqiao Electronic Co ltd
Current assignee: Dongguan Songqiao Electronic Co ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-11-15
Anticipated expiration: 2032-07-05

Abstract

The utility model belongs to the technical field of the silica gel button technique and specifically relates to a silica gel elasticity button with riveting structure of holding tightly is related to, including silica gel button and welded structure, the silica gel button includes square base and the position of pressing of setting on base middle part position, the inside of pressing the position is provided with the cavity structure that link up in the base lower extreme, top at the cavity structure is provided with the conducting resin, welded structure includes that the symmetry sets up two on the base and bends and hold the piece tightly, the piece of holding tightly of bending is including the rectangular form soldering tin portion that corresponds to the base lower extreme, upwards buckle respectively along soldering tin portion both sides and extend to two first portions of holding tightly on the base, and hold the portion of holding tightly to the second of buckling the extension between two first portions of holding tightly along first portion of holding tightly upper end, two second portions of holding tightly have adopted the mode of mutual dislocation fit, make the combination of first portion of holding tightly and second portion of holding tightly can produce the effect of holding tightly, thereby make welded structure firmly fix on the base.

Description

Silica gel elastic key with riveting and holding structure

Technical Field

The utility model belongs to the technical field of the silica gel button technique and specifically relates to a silica gel elasticity button with structure is embraced in riveting pressure.

Background

The silica gel key is one of a plurality of electronic product keys, the main function of the silica gel key is to achieve the key with a conductive function through a conductive adhesive black substance, when the silica gel key is pressed down, the conductive rubber under the key can be electrically communicated with a contact below the key, and when the silica gel key is loosened, the conductive rubber under the key bounces up and is not communicated with the contact below the key, so that the effects of connection and disconnection are achieved; with the continuous innovation and development of the current society, people can realize the surface mounting mode as the electronic components by additionally mounting a film which can be welded on the traditional silica gel key by using the surface mounting technology of the electronic components and the development law thereof.

At present, in the production of the silica gel key, a metal plate which can be welded and fixed is firstly punched into a plurality of base sheets which are arranged in an array by a punching mode, then the punched base sheet material and a contact are placed in a die, then a silica gel sheet is placed in the die, and the base sheet material, the contact and the silica gel sheet are combined together according to a certain shape by a hot-press forming mode, for example, the authorization notice number is CN216671451U, the base sheet is designed into two U-shaped structures which are symmetrically distributed mutually, and two ends of the U-shaped structures can be integrally connected with other base sheets, so that the requirement of a base sheet structure which needs to be arranged in an array in the production of the silica gel key can be met, but because the base sheet mainly plays a welding role, the base sheet is set into a frame-shaped structure due to the requirement of a punching forming process, the material utilization rate of the base sheet is low, and the long-term batch production cost is high; in order to save material consumption, the prior art adopts a structure similar to a stapler nail, but after the stapler nail is stapled on the silica gel key, because the nail body is bent and deformed when being folded, a soldering tin surface of the nail is an arc surface, the silica gel key can incline to a certain extent after being welded, if a plurality of silica gel keys are welded simultaneously, obvious irregularity can occur, the arrangement of the silica gel keys is seriously unqualified, and compared, an improved technical scheme is needed to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.

The utility model provides a silica gel elasticity button with structure is embraced in riveting, including silica gel button and welded structure, the silica gel button includes square base and the position of pressing of setting on base middle part position, the inside of pressing the position is provided with the cavity structure that link up in the base lower extreme, be provided with the conducting resin at the top of cavity structure, welded structure includes that the symmetry sets up two on the base and bends and embrace the piece, bend and embrace the piece including the rectangular form soldering tin portion that corresponds to the base lower extreme, along the other upwards buckling extension respectively in soldering tin portion both sides to tightly embrace two first portions of holding on the base, and along the first portion of holding up end of holding tightly to the second portion of holding between two first portions of holding of bending extension, two second portions of holding are misplaced each other and are merged and are supported the position department that corresponds between two first portions of holding tightly on the base.

Preferably, all be 90 structures of buckling between soldering tin portion and the first portion of hugging closely and between first portion of hugging closely and the second portion of hugging closely.

Preferably, one of them first portion of hugging closely leans on the outer wall of base, and inside the base was inlayed to the other one first portion of hugging closely, the second portion of hugging closely on the first portion of hugging closely of embedding the base inside sees through in the base upper end.

Preferably, the lower extreme at the base has been seted up and has been inlayed the groove, and the first portion of hugging closely that is embedded into base inside sets up in inlaying the inslot, and the second that sees out in the base upper end is hugged closely the portion and is seen out along the top of inlaying the groove.

Preferably, four embedding grooves are formed in the base, the four embedding grooves are parallel to four side faces of the base respectively, and the centers of the four embedding grooves are symmetrical to the vertical central line of the silica gel key.

Preferably, the piece is embraced in bending and base extrusion fit, and two second portions of embracing tightly on the piece are bent and are square structure, and two second portions of embracing tightly separate the interval, and the second that is located the inside first portion of embracing tightly of base of embedding is embraced the portion and is separated the interval with the first portion of embracing tightly that leans on the base outer wall, and the second that is located the first portion of embracing tightly that leans on the base outer wall is embraced the portion and is separated the interval with the inside first portion of embracing tightly of base of embedding.

Compared with the prior art, the beneficial effects of the utility model are that:

the two soldering tin structures are symmetrically arranged on the base of the silica gel key, the two strip-shaped soldering tin parts are used for welding the silica gel key on the circuit board, and the two strip-shaped soldering tin parts can generate four parallel and level supporting point positions, so that after the silica gel key is welded on the circuit board through the soldering tin parts, the silica gel key and the circuit board can be in a parallel state, and therefore when a plurality of silica gel keys are welded on the circuit board, the silica gel key can be prevented from inclining due to the influence of the welding structures;

realize the fixed coordination of welded structure and silica gel button through the mode of holding tightly, adopt and upwards buckle respectively in the both sides of tin welding portion and extend first portion of holding tightly and buckle again along first portion upper end of holding tightly and extend the second portion of holding tightly, one of them first portion of holding tightly supports and leans on in the outside of base, inside the other first portion of holding tightly imbeds the base, thereby reach and carry out the effect that the lateral part held tightly to the silica gel button, two seconds of rethread hold tightly the portion and support the base upper end, and two seconds hold tightly the portion and have adopted mutual dislocation complex mode, make the combination of first portion of holding tightly and second portion of holding tightly can produce the effect of holding tightly, thereby make welded structure can firmly fix on the base.

Through adopting the structure of hugging closely, the welded structure riveting of can being convenient for is on the base, during the riveting, buckles earlier between first portion of hugging closely and the soldering tin portion, then fixes a position the base on the riveting machine, and the base upper end corresponds the riveting station, and the base lower extreme orientation is riveted the head, and the riveting head takes the movable piece of hugging closely of bending to buckle along riveting deformation structure after passing the base and hug closely on the base.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.

Fig. 1 is a schematic view of a viewing angle of the present invention;

fig. 2 is a schematic structural view of another viewing angle of the present invention;

fig. 3 is a schematic cross-sectional structure of the present invention;

fig. 4 is a schematic structural view of the middle bending holding piece of the present invention.

The reference numbers and designations in the drawings are as follows:

the key comprises a silicone key 10, a welding structure 20, a bent clamping sheet 30, a base 11, a pressing part 12, conductive adhesive 13, an embedding groove 14, a soldering part 31, a first clamping part 32 and a second clamping part 33.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, in an embodiment of the present invention, a silicone elastic key with a riveting structure, includes a silicone key 10 and a welding structure 20, the silicone key 10 includes a square base 11 and a pressing portion 12 disposed at a middle position of the base 11, a cavity structure penetrating through a lower end of the base 11 is disposed inside the pressing portion 12, a conductive adhesive 13 is disposed at a top of the cavity structure, in application, the silicone key 10 is welded at a corresponding contact position on a circuit board through the welding structure 20, the conductive adhesive 13 is aligned with the contact position, when the silicone key 10 is pressed, the conductive adhesive 13 overcomes a supporting force of the cavity structure and contacts with the contact, thereby playing a key role, after the silicone key 10 is released, the conductive adhesive 13 will automatically rebound to an original position due to its own elasticity;

welding structure 20 embraces piece 30 including two bending that the symmetry set up on base 11 tightly, piece 30 is embraced tightly including the rectangular form soldering tin portion 31 that corresponds to base 11 lower extreme to bend upward respectively along soldering tin portion 31 both sides and extend to two first portions 32 of embracing tightly on base 11, and embrace portion 33 tightly to the second of buckling and extending between two first portions 32 of embracing tightly along first portion 32 upper end of embracing tightly, two second are embraced portion 33 mutually dislocation fit and are supported and correspond two first position departments of embracing between the portion 32 tightly on the base 11.

The two soldering tin structures are symmetrically arranged on the base 11 of the silica gel key 10, the silica gel key 10 is welded on the circuit board by using the two strip-shaped soldering tin parts 31, and the two strip-shaped soldering tin parts 31 can generate four parallel and level supporting point positions, so that after the silica gel key 10 is welded on the circuit board through the soldering tin parts 31, the silica gel key 10 and the circuit board can be in a parallel state, and therefore when a plurality of silica gel keys 10 are welded on the circuit board, the silica gel key 10 can be ensured not to incline due to the influence of the welding structures 20;

realize welded structure 20 and silica gel button 10's fixed cooperation again through the mode of holding tightly, adopt and upwards buckle respectively and extend first portion 32 of holding tightly and bend the second portion 33 of holding tightly again along first portion 32 upper end of holding tightly in the both sides of tin welding portion 31, one of them first portion 32 of holding tightly leans on in the outside of base 11, inside another first portion 32 of holding tightly imbeds base 11, thereby reach the effect of carrying out the lateral part to silica gel button 10 and hold tightly, two second portions 33 of rethread hold tightly and come to support base 11 upper end, and two second portions 33 of holding tightly have adopted the mutual dislocation complex mode, make the combination of first portion 32 of holding tightly and second portion 33 can produce the effect of holding tightly, thereby make welded structure 20 can firmly fix on base 11.

In addition, through this structure of holding tightly, the welded structure 20 riveting of being convenient for is on base 11, during the riveting, buckle earlier between first portion 32 and the soldering tin portion 31 of holding tightly, then with base 11 location on the riveting machine, the riveting station is corresponded in the base 11 upper end, and base 11 lower extreme orientation riveting head, riveting head move the piece 30 of holding tightly of bending pass base 11 after buckle along riveting deformation structure and hold tightly on base 11.

Referring to fig. 4, the soldering tin portion 31 and the first clasping portion 32 and the second clasping portion 33 are both of 90-degree bending structures, and compared with a structure similar to a stapler nail, the 90-degree bending structure can ensure the strength of the bending position among the soldering tin portion 31, the first clasping portion 32 and the second clasping portion 33, prevent the occurrence of the breakage caused by too large bending, and therefore the rejection rate of products can be reduced to a certain extent.

Referring to fig. 1 to 3, one of the first clasping portions 32 abuts against an outer wall of the base 11, the other first clasping portion 32 is embedded in the base 11, and the second clasping portion 33 on the first clasping portion 32 embedded in the base 11 penetrates through the upper end of the base 11, so that if the first clasping portion 32 embedded in the base 11 penetrates through the base 11, a portion of the bent clasping sheet 30 that clasps the base 11 is integrally formed with other portions of the base 11 only through two ends of the portion, and the portion of the bent clasping sheet 30 that clasps the base 11 is easily broken, so that the portion of the base 11 that is clasped by the bent clasping sheet 30 is not easily broken by adopting a structure in which the first clasping portion 32 embedded in the base 11 is only embedded in the base 11 without penetrating through the portion; specifically, the lower end of the base 11 is provided with an embedding groove 14, a first clasping part 32 embedded into the base 11 is arranged in the embedding groove 14, and a second clasping part 33 protruding out of the upper end of the base 11 protrudes out along the top of the embedding groove 14; in addition, the number of the embedding grooves 14 is four, the four embedding grooves 14 are respectively parallel to four side surfaces of the base 11, the centers of the four embedding grooves 14 are symmetrical to the vertical central line of the silicone key 10, the four embedding grooves 14 can be designed, and the silicone key 10 and the welding structure 20 can be riveted without considering the placement direction of the base 11.

Referring to fig. 1 and 4, in order to fix the base 11 and the bent holding piece 30 without loosening and ensure that the bent holding piece 30 is not easily torn off, the bent holding piece 30 is in press fit with the base 11, two second holding portions 33 on the bent holding piece 30 are in a square structure, a gap is formed between the two second holding portions 33, a gap is formed between the second holding portion 33 on the first holding portion 32 embedded in the base 11 and the first holding portion 32 abutting against the outer wall of the base 11, and a gap is formed between the second holding portion 33 on the first holding portion 32 abutting against the outer wall of the base 11 and the first holding portion 32 embedded in the base 11; the base 11 can be squeezed out by the clasped part when the gap generated between the clasping of the bent clasping piece 30 is generated after the clasping mode is realized, and the situation that the clasped part of the base 11 is broken due to too large squeezing is prevented.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a silica gel elasticity button with structure is embraced in riveting, including silica gel button and welded structure, the silica gel button includes square base and the position of pressing of setting on base middle part position, the inside of pressing the position is provided with the cavity structure that link up in the base lower extreme, be provided with conducting resin at the top of cavity structure, a serial communication port, welded structure includes that the symmetry sets up two on the base and enclasp the piece of bending, the piece of enclasping of bending is including the rectangular form soldering tin portion that corresponds the base lower extreme, along other upwards buckling respectively of portion both sides of portion of enclasping to two first portions of enclasping on the base, and along the first portion of enclasping upper end to the second portion of enclasping of buckling extension between two first portions of enclasping, two second portion of enclasping each other dislocation fit of portion and support the position department between two first portions of enclasping of corresponding on the base.

2. The silicone elastic key with the riveting and clasping structure as recited in claim 1, wherein the solder portion and the first clasping portion and the second clasping portion are both in 90-degree bending structures.

3. The silicone elastic key with the riveting and clasping structure as recited in claim 2, wherein one of the first clasping portions abuts against the outer wall of the base, the other first clasping portion is embedded into the base, and the second clasping portion of the first clasping portion embedded into the base protrudes from the upper end of the base.

4. The silicone elastic key with the riveting and clasping structure as recited in claim 3, wherein the lower end of the base is provided with an embedding groove, the first clasping portion embedded in the base is arranged in the embedding groove, and the second clasping portion protruding out of the upper end of the base protrudes out along the top of the embedding groove.

5. The silicone elastic key with the riveting and pressing clasping structure as recited in claim 4, wherein the number of the embedding grooves is four, the four embedding grooves are respectively parallel to four side surfaces of the base, and the centers of the four embedding grooves are symmetrical to the vertical center line of the silicone key.

6. The silicone elastic key with the riveting and clasping structure as recited in claim 3, wherein the bending clasping sheet is in press fit with the base, two second clasping portions on the bending clasping sheet are of a square structure, a gap is formed between the two second clasping portions, a gap is formed between the second clasping portion located on the first clasping portion embedded inside the base and the first clasping portion abutted against the outer wall of the base, and a gap is formed between the second clasping portion located on the first clasping portion abutted against the outer wall of the base and the first clasping portion embedded inside the base.