CN210006646U

CN210006646U - Push switch

Info

Publication number: CN210006646U
Application number: CN201920594174.3U
Authority: CN
Inventors: 林锡埼
Original assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Current assignee: ZHUHAI WEIDA ELECTRONICS CO Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-01-31
Anticipated expiration: 2029-04-26

Abstract

The utility model provides a kind press switch, press piece and at least electrically conductive shell fragment have been acceptd to the base inside of this pedestal, and be equipped with at the press piece rear and support and hold the piece, and electrically conductive shell fragment has the elasticity convex part that supplies to support and hold the piece and push up, be equipped with at least 0 and support the piece outside elasticity convex part again, and be equipped with 1 terminal and second terminal on the base plate of this terminal module, and be equipped with at least the confession at 3 basal portion 4 side of 2 terminal and support the contact part that presses the piece normality contact, again be equipped with connecting portion in basal portion in addition side, and the side of second basal portion of this second terminal is equipped with the second contact part that at least confession elasticity convex part contacted, and be equipped with the second connecting portion in addition side of second basal portion, its length that supports and holds the piece is greater than or equal to elasticity convex part length 60%, can make to support and hold and form the electric contact of large area between piece and the elasticity convex part, so really produce elastic deformation, and then avoid bad contact, so accord with when the frivolousness trend.

Description

Push switch

Technical Field

The utility model relates to an kinds of push switches indicate that the length of the piece of holding of pressing is more than or equal to 60% of the elasticity convex part length of electrically conductive shell fragment to make and form the electrical contact of large tracts of land between holding piece and the elasticity convex part, and then make the elasticity convex part receive really pushing away and support and produce elastic deformation, in order to avoid contact failure, so accord with frivolous short and small trend, and promote the stability of using.

Background

With the advent of the high-tech era, a great number of electronic products are used in daily life and work, and the efficiency and convenience of life and work are improved, however, besides indoor use, many electronic products are portable and are not limited by time and place, such as notebook computers, tablet computers, multimedia video players, mobile phones, digital cameras, etc., which are portable and usable electronic products.

Among the components used in various electronic products, the push switch is a component that is quite common in use, and is controlled by a push method, and because the overall structure is simple and easy for modularized mass production, is often widely used in electronic products, most of the existing push switches are designed to have a plurality of terminals with a plurality of contact portions on a base, and have a conductive elastic piece on a side of the plurality of terminals , and the center of the conductive elastic piece has a raised pressing portion, and then an abutting portion abutting against the contact portion of the terminal is provided around the pressing portion, and the conductive elastic piece is provided with a push piece on the other side side relative to the plurality of terminals, when the push switch is in use, the push piece can be pressed to further abut against the pressing portion of the conductive elastic piece, so that the pressing portion electrically contacts the contact portion of the other terminal, so that the plurality of terminals are electrically conducted with each other, and thus the push switch is used.

However, since the existing push switch is developed in a direction of being light, thin, short, and small, the components inside the push switch must be reduced, however, the push member is reduced, so that the push member cannot accurately press against the pressing portion of the conductive elastic sheet during pressing, which causes uneven force application on the conductive elastic sheet, and further causes the conductive elastic sheet to be displaced, which seriously affects the stability and quality of the electrical contact.

Therefore, how to try to solve the above-mentioned existing drawbacks and inconveniences is a direction that the related art needs to research and improve.

SUMMERY OF THE UTILITY MODEL

Therefore, in view of the above problems and shortcomings, the present invention provides a new push switch design by collecting relevant data, evaluating and considering in many ways, and continuously trying and modifying through years of experience accumulated in the industry.

In order to achieve the above object, the utility model adopts the following technical scheme:

kinds of push switch, its characterized in that, including pedestal and terminal module, wherein:

the seat body is provided with a base, a pressing piece and at least conductive elastic sheets are accommodated in an accommodating space formed in the base, a convex abutting block is arranged at the rear part of the pressing piece, the conductive elastic sheets are provided with elastic convex parts for the abutting block to push and abut to form elastic deformation, at least abutting pieces are arranged on the outer sides of the elastic convex parts, and the length of the abutting block of the pressing piece is more than or equal to 60 percent of that of the elastic convex parts of the conductive elastic sheets;

the terminal module has a substrate located at the base side of the seat body, and a terminal and a second terminal are arranged on the substrate, and a 1 base 2 side of the 0 terminal is provided with at least 3 contact parts for the normal contact of the pressing sheets of the conductive elastic sheet, and then another base side is provided with an connection part for forming electrical connection with a preset circuit board, and a second base side of the second terminal is provided with at least second contact parts for the elastic convex parts of the conductive elastic sheet to be in abutting contact and forming electrical conduction with the terminal when the pressing piece presses, and another side of the second base is provided with a second connection part for forming electrical connection with the preset circuit board.

The push switch, wherein: an opening for the pressing piece to transversely penetrate through is formed in the front of the accommodating space of the base, blocking parts are formed on two side wall surfaces of the opening, and baffle plates which are abutted against the blocking parts to form blocking positioning are arranged on two sides of the rear of the pressing piece in an extending mode relatively outwards.

The push switch, wherein: the length of the abutting block of the pressing piece is between 1.3 +/-0.02 mm, the width of the abutting block is between 0.4 +/-0.02 mm, the long axis of the abutting surface of the abutting block is between 0.4 +/-0.02 mm, the short axis of the abutting surface of the abutting block is between 0.21 +/-0.01 mm, the length of the conductive elastic sheet is between 2.5 +/-0.05 mm, the width of the conductive elastic sheet is between 1.15 +/-0.02 mm, the length of the elastic convex part of the conductive elastic sheet is between 1.88 +/-0.02 mm, and the width of the elastic convex part of the conductive elastic sheet is between 0.49 +/-0.01 mm.

The push switch, wherein: the surface of the propping block is formed with a curved surface, and the center of the curved surface is provided with a propping surface.

The push switch, wherein: the bottom of the supporting block is provided with a base.

The push switch, wherein: the conducting elastic sheet has transverse slots between the two pressing sheets and the elastic lugs, and bent parts in the left and right sides of the pressing sheets for the pressing sheets and the elastic lugs to form front and back dislocation.

The pressing switch is characterized in that a gasket is accommodated in a base of the seat body, a containing groove for positioning the conductive elastic sheet is formed in the hollow interior of the gasket, a th membrane with an insulating sheet body is abutted and positioned on the front side of the gasket, the th membrane is positioned between the pressing piece and the conductive elastic sheet to form isolation, the front side and the rear side of the th membrane of the insulating sheet body are abutted and positioned with a second membrane, a th through hole corresponding to the containing groove of the gasket is formed in the second membrane, a third membrane with the insulating sheet body is abutted and positioned on the rear side of the gasket, and a second through hole corresponding to the containing groove of the gasket is formed in the third membrane.

The push switch is characterized in that concave parts for positioning the th connecting part and the second connecting part are formed at two sides of the bottom of the substrate of the terminal module.

The push switch, wherein: the base and the terminal module are covered and positioned with a shielding shell, a positioning space for the base and the terminal module to be placed in is formed in the shielding shell, and a through hole for the pressing piece to transversely extend out is formed in the front of the positioning space.

The press switch is characterized in that convex buckles are arranged at two sides in front of the base, buckling grooves for buckling and positioning the convex buckles are arranged at two sides of the through hole of the shielding shell, positioning foot parts are arranged at two sides behind the through hole of the shielding shell, notches for exposing the th connecting part and the second connecting part are formed at the rear of the positioning foot parts and adjacent to the shielding shell, and an insulating sheet for isolating the shielding shell from the th terminal and the second terminal is abutted and positioned at the rear of the substrate of the terminal module.

The main advantage of the present invention is that the base of the base body accommodates therein the pressing member and at least conductive elastic pieces, and the rear of the pressing member has a protruding abutting block, and the conductive elastic pieces have elastic convex portions for abutting against the abutting block to achieve elastic deformation, and at least abutting pieces are disposed outside the elastic convex portions, and the length of the abutting block of the pressing member is greater than or equal to 60% of the length of the elastic convex portion of the conductive elastic pieces, and the terminal module has a substrate located at the rear of the base, and a terminal and a second terminal are disposed on the substrate, and base side of the terminal has 5393 base side at least 6855 first contact portions for normal contact of the abutting pieces of the conductive elastic pieces, and further another side of the base is disposed a second connection portion for forming electrical connection with the predetermined circuit board, and the second base side of the second terminal is disposed with at least elastic convex portions for elastic convex portions of the pressing member to form electrical connection with the second terminal, and the second switch is disposed on the second base side to form a small elastic convex portion for forming electrical connection when the pressing member, thereby forming a small elastic convex portion, and the electrical connection is disposed with the second switch, so that the elastic convex portion forming a small elastic convex portion, the elastic convex portion for forming a short contact with a small elastic portion.

The utility model discloses an advantage lies in that this pressing part is located to support the structural strength who holds the piece bottom for the accessible base promotes the pressing part in addition to make light, thin, short, miniaturized press switch in pressing the in-process, its pressing part is difficult for taking place the situation of warping or fracture, and then reaches promotion life's purpose.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is an exploded perspective view of another perspective of the present invention.

Fig. 4 is a rear view of the pressing member of the present invention.

Fig. 5 is a front view of the conductive elastic piece of the present invention.

Fig. 6 is a side sectional view of the present invention before pressing.

Fig. 7 is a side sectional view of the present invention after pressing.

The reference numbers indicate that 1-seat, 10-containing space, 101-opening, 11-base, 111-blocking part, 112-convex buckle, 12-pressing piece, 121-abutting block, 1211-curved surface, 1212-abutting surface, 122-base, 123-baffle, 13-conductive elastic sheet, 131-elastic convex part, 132-abutting piece, 1321-groove, 1322-bending part, 14-gasket, 141-containing groove, 15-insulating sheet body, 151- membrane, 152-second membrane, 1521- through hole, 153-third membrane, 1531-second through hole, 2-terminal module, 21-base plate, 211-concave part, 22- terminal, 221- base part, 222- contact part, 223- connection part, 23-second terminal, 231-second base part, 232-second contact part, 233-second connection part, 24-insulating sheet, 3-shielding shell, 30-locating space, 31-locating through hole, 31-32-foot locating groove, 31-33-second contact hole, solder socket, and solder socket, 3-locating socket.

Detailed Description

To achieve the above objects and advantages, the preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Please refer to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, which are a perspective view, a perspective exploded view, another perspective exploded view, a rear view of the pressing member, and a front view of the conductive elastic piece of the present invention, as can be clearly seen from the drawings, the present invention includes a base 1, a terminal module 2, and a shielding shell 3, so that the detailed description of the main components and features of the present invention is as follows, wherein:

the base body 1 has a rectangular base 11, and a containing space 10 formed inside the base 11 contains a pressing piece 12, at least conductive elastic pieces 13 and a longitudinal gasket 14 for positioning the conductive elastic pieces 13, an opening 101 for the front part of the pressing piece 12 to transversely penetrate through is formed in the front part of the containing space 10 of the base 11, blocking parts 111 are formed on two side wall surfaces of the opening 101, and convex buckles 112 are arranged on the base 11 at two sides of the opening 101.

Furthermore, the center of the rear of the pressing member 12 of the seat body 1 is provided with a convex abutting block 121, the surface of the abutting block 121 is formed with an arc-shaped curved surface 1211, the center of the curved surface 1211 is provided with a flat elliptic abutting surface 1212, the bottom of the abutting block 121 is provided with a rectangular base 122, two sides of the base 122 are relatively extended outwards to be provided with a baffle 123 abutting against the blocking part 111 of the base 11 to form a blocking position, the conductive elastic sheet 13 is provided with an arched elastic convex part 131 elastically supporting against the abutting block 121 of the pressing member 12, at least flat abutting sheets 132 are arranged at the upper and lower parts of the outer side of the elastic convex part 131, a cross-section 1321 is transversely arranged between the two abutting sheets 132 and the elastic convex part 131, and bent parts 1322 are formed at the left and right sides of the abutting sheet 132 and are bent backwards to enable the abutting sheets 132 and the elastic convex part 131 to form a front-back dislocation state.

However, the receiving groove 141 is formed in the hollow interior of the spacer 14, the diaphragm 151 with the insulating sheet body 15 positioned therein is further pressed on the front side of the spacer 14, the diaphragm 151 is positioned between the pressing element 12 and the conductive elastic sheet 13 to form a separation, the second diaphragm 152 is further pressed on the front and rear sides of the diaphragm 151 of the insulating sheet body 15, the through hole 1521 corresponding to the receiving groove 141 of the spacer 14 is formed on the second diaphragm 152, the third diaphragm 153 with the insulating sheet body 15 positioned therein is further pressed on the rear side of the spacer 14, and the second 153through hole 1 corresponding to the receiving groove 141 of the spacer 14 is formed on the third diaphragm 153.

The terminal module 2 has a longitudinal substrate 21 located at the rear of the base 11 of the housing 1 and abutting against and positioned on the pad 14, the substrate 21 preferably has a circuit substrate or a plastic board with preset circuit wiring, and a quarter circular curved concave portion 211 is formed at both sides of the bottom of the substrate 21, and the substrate 21 is provided with a th terminal 22 and a second terminal 23 corresponding to the accommodating groove 141 of the pad 14, while the th terminal 22 has a th base 221 side extended outward with at least 3 th contact portions 222 for contacting with the pressing sheet 132 of the conductive elastic sheet 13, and has a curved second connecting portion 223 located at the concave portion 211 of the substrate 21 at the side 221 of the th base 221 and another side, and the second base 231 and side extended outward with at least second contact portions 232 for contacting with the elastic convex portion 131 of the conductive elastic sheet 13 to form an electrical connection therewith when the conductive elastic sheet 13 is pressed, and has a second base located at the curved base 233 side of the substrate 21 and another located at the rear side of the substrate 21 and another 3821.

The shielding shell 3 is located on the base 1 and the terminal module 2 in a covering manner, a longitudinal positioning space 30 is formed inside the shielding shell 3, a through hole 31 for the pressing member 12 to transversely extend is formed in front of the positioning space 30 of the shielding shell 3, a fastening groove 311 for fastening and positioning the convex fastener 112 of the base 11 is formed in two sides of the through hole 31, a positioning foot 32 is formed in two sides of the shielding shell 3 behind the through hole 31, a notch 321 for exposing the third connecting portion 223 of the terminal 22 and the second connecting portion 233 of the second terminal 23 is formed in a position adjacent to the shielding shell 3 behind the positioning foot 32, and the insulating sheet 24 is located between the terminal 22 and the second terminal 23 of the shielding shell 3 and the terminal module 2 to form an isolation, so as to prevent the terminal module 2 and the shielding shell 3 from forming an electrical conduction.

The length a of the supporting block 121 of the pressing member 12 is between 1.3 ± 0.02mm, the width B of the supporting block 121 is between 0.4 ± 0.02mm, the long axis C of the supporting surface 1212 of the supporting block 121 is between 0.4 ± 0.02mm, and the short axis D of the supporting surface 1212 of the supporting block 121 is between 0.21 ± 0.01 mm; in addition, the length X of the conductive elastic piece 13 is between 2.5 ± 0.05mm, the width Y of the conductive elastic piece 13 is between 1.15 ± 0.02mm, the length M of the elastic convex part 131 of the conductive elastic piece 13 is between 1.88 ± 0.02mm, and the width N of the elastic convex part 131 of the conductive elastic piece 13 is between 0.49 ± 0.01 mm; the length a of the abutting block 121 of the pressing element 12 is greater than or equal to 60% of the length M of the elastic protrusion 131 of the conductive elastic piece 13, and may be 61%, 62%, 63%, 64%, 65%, 66%, 67%, 68%, 69%, or 70%, and preferably 69% in practical applications, that is, the elastic protrusion 131 of the conductive elastic piece 13 is deformed most reliably to improve the stability of contact with the second contact portion 232 of the second terminal 23.

In addition, the base 11 of the seat body 1 and the substrate 21 of the terminal module 2 are preferably separate members, but in practical applications, the base 11 and the substrate 21 may also be formed by body molding.

Please refer to fig. 6 and 7, which illustrate the side view section before and after pressing of the present invention, as can be seen clearly from the drawings, when the present invention is assembled, the seat 1 can be positioned on the circuit board 4 first, and the th connecting portion 223 of the th terminal 22 of the terminal module 2 and the second connecting portion 233 of the second terminal 23 are abutted to the corresponding metal contact 41 on the circuit board 4 respectively, and the positioning feet 32 at the two sides of the shielding shell 3 are penetrated into the insertion holes 42 of the circuit board 4 respectively, and then the solder 43 is used to be soldered and fixed by Surface Mount Technology (SMT) or through hole (ThroughHole) soldering to form an electrical connection, so that the solder 43 can be collected at the concave portion 211 of the substrate 21 to effectively prevent insufficient tin consumption, and improve the soldering strength integrally positioned on the circuit board 4, and the positioning feet 32 of the shielding shell 3 can be used to hold the terminal 1 and the terminal 2, thereby preventing the terminal module from being damaged by lifting up and lifting up the solder, and preventing the signal transmission structure of the module from being damaged.

When the present invention is used, the pressing member 12 of the seat body 1 can be pressed first, so that the abutting block 121 of the pressing member 12 is pushed backward against the side surface of the elastic protrusion 131 arched by the conductive elastic piece 13, the abutting surface 1212 of the abutting block 121 is pushed against the center of the elastic protrusion 131, and the side surface of the elastic protrusion 131 is elastically deformed along with the curved surface 1211 of the abutting block 121, so that the side surface of the elastic protrusion 131 and the side surface of the are abutted against and contacted with the second contact portion 232 of the second terminal 23 of the terminal module 2, and the second abutting piece 132 of the conductive elastic piece 13 is in abutting contact with the corresponding -th contact portion 222 of the -th terminal 22 in advance to form a normal state contact, so that the elastic protrusion 131 of the conductive elastic piece 13 and the abutting piece 132 can form an electrical conduction state between the -th contact portion 222 of the -th terminal 22 and the second contact portion 232 of the second terminal 23.

When the force applied to the pressing member 12 of the base 1 is released, the elastic protrusion 131 of the conductive elastic piece 13 will elastically return to push the pressing member 12 back, and the side surface of the elastic protrusion 131 and the side surface will not contact the surface of the second contact portion 232 of the second terminal 23, so as to release the electrical conduction state, thereby completing the use of the present invention.

In the process of pressing the pressing member 12 of the seat body 1, since the length a of the abutting block 121 of the pressing member 12 is greater than or equal to 60% of the length M of the elastic protrusion 131 of the conductive elastic piece 13, a large area of electrical contact is formed between the abutting block 121 and the elastic protrusion 131, and the elastic protrusion 131 is reliably pushed to generate elastic deformation, thereby avoiding the occurrence of poor contact, and thus improving the stability during use.

The utility model has the advantages of that:

() the length A of the supporting block 121 of the pressing member 12 is greater than or equal to 60% of the length M of the elastic protrusion 131 of the conductive elastic sheet 13, so that a large area of electrical contact is formed between the supporting block 121 and the elastic protrusion 131, and the elastic protrusion 131 is reliably pushed to generate elastic deformation, thereby avoiding poor contact, so that the push switch can meet the trend of light weight, thinness, shortness and miniaturization, and has good use stability.

Second, the base 122 is disposed at the bottom of the abutting block 121 of the pressing member 12, so that the structural strength of the pressing member 12 can be improved by the base 122, and the pressing member 12 is not easily deformed or broken during the pressing process of the light, thin, short and small pressing switch, thereby prolonging the service life.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1, kinds of push switch, its characterized in that, including pedestal and terminal module, wherein:

2. The push switch of claim 1, wherein: an opening for the pressing piece to transversely penetrate through is formed in the front of the accommodating space of the base, blocking parts are formed on two side wall surfaces of the opening, and baffle plates which are abutted against the blocking parts to form blocking positioning are arranged on two sides of the rear of the pressing piece in an extending mode relatively outwards.

3. The push switch of claim 1, wherein: the length of the abutting block of the pressing piece is between 1.3 +/-0.02 mm, the width of the abutting block is between 0.4 +/-0.02 mm, the long axis of the abutting surface of the abutting block is between 0.4 +/-0.02 mm, the short axis of the abutting surface of the abutting block is between 0.21 +/-0.01 mm, the length of the conductive elastic sheet is between 2.5 +/-0.05 mm, the width of the conductive elastic sheet is between 1.15 +/-0.02 mm, the length of the elastic convex part of the conductive elastic sheet is between 1.88 +/-0.02 mm, and the width of the elastic convex part of the conductive elastic sheet is between 0.49 +/-0.01 mm.

4. The push switch of claim 1, wherein: the surface of the propping block is formed with a curved surface, and the center of the curved surface is provided with a propping surface.

5. The push switch of claim 1, wherein: the bottom of the supporting block is provided with a base.

6. The push switch of claim 1, wherein: the conducting elastic sheet has transverse slots between the two pressing sheets and the elastic lugs, and bent parts in the left and right sides of the pressing sheets for the pressing sheets and the elastic lugs to form front and back dislocation.

7. The push switch of claim 1, wherein the base of the base body accommodates a pad, a receiving groove is formed in the hollow interior of the pad for positioning the conductive resilient piece, an th membrane is positioned on the front side of the pad, the th membrane is positioned between the push element and the conductive resilient piece to form an isolation, the th membrane of the insulating piece is positioned with a second membrane, the second membrane is provided with a th through hole corresponding to the receiving groove of the pad, the rear side of the pad is positioned with a third membrane, and the third membrane is provided with a second through hole corresponding to the receiving groove of the pad.

8. The push switch of claim 1, wherein the terminal module has recesses formed at both sides of the bottom of the substrate for positioning the th connection part and the second connection part.

9. The push switch of claim 1, wherein: the base and the terminal module are covered and positioned with a shielding shell, a positioning space for the base and the terminal module to be placed in is formed in the shielding shell, and a through hole for the pressing piece to transversely extend out is formed in the front of the positioning space.

10. The push switch of claim 9, wherein the housing has a protrusion at two sides of the front thereof, and a slot for the protrusion to be retained and positioned at two sides of the through hole of the shielding housing, and the shielding housing has a positioning leg at two sides of the rear of the through hole, and a slot for exposing the th connecting portion and the second connecting portion is formed at the rear of the positioning leg adjacent to the shielding housing, and an insulating sheet is attached and positioned at the rear of the substrate of the terminal module to isolate the shielding housing from the th terminal and the second terminal.