CN110957603A

CN110957603A - Crimp electrical connector

Info

Publication number: CN110957603A
Application number: CN201911181567.2A
Authority: CN
Inventors: 莫凑全
Original assignee: Suzhou Yunzhong Electronic Technology Co Ltd
Current assignee: Suzhou Yunzhong Electronic Technology Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-04-03
Also published as: WO2021103310A1

Abstract

The invention relates to a crimping electric connector, which comprises an insulating elastic body and a conductive metal sheet, wherein the conductive metal sheet is embedded in the insulating elastic body and is provided with a first extending part and a second extending part which extend out of a group of opposite diagonal areas of the insulating elastic body; elastic resilience deformation comes from insulating elastomer, and non-conductive sheet metal itself, so the electric contact performance of conductive sheet metal is still better after the crimping operation many times, the electric contact is good, and because first extension and second extension are fixed on insulating elastomer's surface, make first extension and second extension be the plane as connecting terminal's surface, it is showing and has promoted area of contact, and then can make crimping electric connector's electric connection performance better, the electric contact is good, and be convenient for fix first extension on the base plate through modes such as welding, the reliability of being connected with the base plate has been guaranteed.

Description

Crimp electrical connector

Technical Field

The invention relates to the technical field of electric connectors, in particular to a crimping electric connector.

Background

With the continuous development of miniaturization and high functionality of portable mobile terminal equipment such as mobile phones, smart phones, tablet computers and the like, the volume of electronic devices is gradually reduced, the installation density of substrates in a limited space is gradually increased, the corresponding conductive terminals are smaller and smaller, and the requirements on electric connectors are higher and higher.

At present, the electric connector is mainly a crimping electric connector, a plurality of substrates arranged in mobile terminal equipment are electrically connected with each other in a crimping mode, the existing crimping electric connector is fixedly arranged and electrically connected on one substrate, an elastic connecting terminal corresponding to a conductive terminal on the other substrate is arranged, the elastic connecting terminal is electrically contacted with the conductive terminal under the action of pressure to realize the electric connection of the two substrates, and the elastic connecting terminal is rebounded and reset after pressure evacuation, and the existing elastic connecting terminal has two modes, namely a mode I: however, the reciprocating elastic deformation of the metal elastic sheet mainly comes from the metal body material, when the size of the metal elastic sheet is small, the compressibility and elastic performance of the metal material become very poor along with multiple crimping operations, which leads to poor electrical contact, and when the spiral metal elastic sheet is adopted to improve the elasticity, the welding area of the metal elastic sheet is limited, which leads to unreliable welding; the second method comprises the following steps: the conductive metal is glued on the outer side of the insulating elastomer, but the electric connector limits the elastic deformation of the insulating elastomer, and the insulating elastomer and the conductive metal are produced, bonded and cut respectively during preparation, so that automatic continuous production cannot be formed, and the production efficiency is low.

Disclosure of Invention

In view of the above, it is necessary to provide a crimp electrical connector which addresses the problems of unreliable soldering and poor electrical contact due to poor elastic properties after a plurality of crimping operations.

A crimping electric connector comprises an insulating elastic body and a conductive metal sheet, wherein the conductive metal sheet is embedded in the insulating elastic body and is provided with a first extending portion and a second extending portion, the first extending portion and the second extending portion extend out of a group of opposite diagonal regions of the insulating elastic body, and the first extending portion and the second extending portion are fixed on the opposite surfaces of the insulating elastic body after being bent.

The crimping electric connector is embedded in the elastic piece through the conductive metal sheet, the first extending part and the second extending part are fixed on the surface of the insulating elastic body after being bent, so that the conductive metal sheet and the elastic piece are fixed into a whole, the first extending part is used as a connecting terminal to be fixed on one substrate and electrically connected with the substrate, the second extending part is used as another connecting terminal to be crimped with the other substrate under the action of pressure, the electric connection of the two substrates is realized, the elastic piece is compressed at the moment, and the elastic piece rebounds after the pressure is removed, so that the second extending part is reset; the elastic resilience deformation in the crimping electric connector is from the insulating elastic body, but the non-conductive metal sheet per se, so the electric contact performance of the conductive metal sheet is still better after multiple times of crimping operation, the electric contact is good, and because the first extension part and the second extension part are fixed on the surface of the insulating elastic body, the surface of the first extension part and the second extension part as the connecting terminal is a plane, the contact area is obviously improved, and further the electric connection performance of the crimping electric connector can be better, the electric contact is good, and the first extension part is convenient to be fixed on the substrate in modes of welding and the like, and the reliability of connection with the substrate is ensured.

In one embodiment, the insulating elastic body has a first surface and a second surface parallel to each other, a third surface and a fourth surface connecting the first surface and the second surface, respectively, and the conductive metal sheet has a zigzag shape in a cross section perpendicular to the first surface, wherein:

the first extension part is fixed on the first surface, and the projection of the first extension part on the first surface covers the first surface;

the second extension part is fixed on the second surface, and the projection on the second surface covers the second surface.

According to the crimp electric connector, the projection of the first extension part on the first surface is limited to cover the first surface, and the projection of the second extension part on the second surface is limited to cover the second surface, so that the contact area between the first extension part and the substrate is larger, the electric connection performance is better, and the electric contact is better.

In one embodiment, the first extension and the second extension extend out of the insulating elastic body in a diagonal direction of the insulating elastic body.

The crimp electrical connector further ensures that the projection of the first extension part on the first surface covers the first surface and the projection of the second extension part on the second surface covers the second surface by limiting the first extension part and the second extension part to protrude along the diagonal direction of the insulating elastic body, so that the electrical contact is good.

In one embodiment, the insulating elastic body includes a fifth surface and a sixth surface which are oppositely arranged, the fifth surface connects the first surface and the third surface and inclines towards the direction of the second surface, the first extension portion extends out from the fifth surface, the sixth surface connects the second surface and the fourth surface and inclines towards the direction of the first surface, and the second extension portion extends out from the sixth surface.

According to the crimping electric connector, the fifth surface is arranged between the first surface and the third surface, and the sixth surface is arranged between the second surface and the fourth surface, so that the bending of the first extension part and the second extension part is facilitated, and meanwhile, gaps between the first extension part and the first surface and between the second extension part and the second surface after bending are small, so that the fixing of the first extension part and the first surface and the fixing of the second extension part and the second surface are facilitated.

In one embodiment, the first extension extends beyond the third surface and the second extension extends beyond the fourth surface.

According to the crimping electric connector, the first extension part is limited to extend out of the third surface, the second extension part extends out of the fourth surface, so that the first extension part and the second extension part can be bent conveniently, gaps among the first extension part and the first surface and among the second extension part and the second surface after bending are small, the first extension part and the first surface can be fixed conveniently, and the second extension part and the second surface can be fixed conveniently.

In one embodiment, two sets of through holes are formed in the insulating elastic body, the two sets of through holes are located on two sides of a part of the conductive metal sheet embedded in the insulating elastic body, and the axial direction of each through hole is parallel to the first surface and the third surface.

Above-mentioned crimping electric connector sets up the deformation space of through-hole in order to expand insulating elastomer on insulating elastomer to promote its elasticity performance, and then make crimping electric connector's whole reciprocal elasticity performance.

In one embodiment, each set of through holes includes slots that open at the edges of the other set of opposing diagonal regions of the insulating elastomer.

In the crimp electrical connector, the aperture of the through hole may be determined according to the elasticity and mechanical properties of the insulating elastic body, and in order to further improve the elasticity property of the insulating elastic body, the aperture may be included to extend to the edge of another set of opposite diagonal regions of the insulating elastic body.

In one embodiment, a first hook is arranged at the end part of the first extending part far away from the third surface, and the first hook is buckled and connected with the groove hole close to the first hook; and a second clamping hook is arranged at the end part of the second extension part far away from the fourth surface and is connected with the groove hole close to the second clamping hook in a clamping manner.

According to the crimping electric connector, the first extending part is fixedly connected with the first surface through the buckling connection of the first clamping hook and the groove hole close to the first clamping hook, and the second extending part is fixedly connected with the second surface through the buckling connection of the second clamping hook and the groove hole close to the second clamping hook, so that the first connecting part and the second connecting part are prevented from falling off from the insulating elastic body in the using process.

In one embodiment, the first extension and the second extension are secured to opposing surfaces of the insulating elastomer by an adhesive layer.

According to the crimping electric connector, the first extension part is fixedly connected with the first surface through the adhesive layer, and the second extension part is fixedly connected with the second surface through the adhesive layer, so that the first connection part and the second connection part are prevented from falling off from the insulating elastic body in the using process.

In one embodiment, the adhesive layer is formed by thermal curing of a liquid silicone gel.

According to the crimping electric connector, the adhesive layer formed by thermosetting of the liquid silicone rubber has good elasticity and good connection stability.

In one embodiment, the conductive metal sheet and the insulating elastomer are injection molded as a single piece.

The crimping electric connector is formed in an integrated structure by embedding the conductive metal sheet and the insulating elastic body together through injection molding.

In one embodiment, the first extension part and the second extension part are provided with a metal coating layer on the side facing away from the insulating elastomer, and the conductivity of the metal coating layer is greater than that of the conductive metal sheet.

According to the crimping electric connector, the metal coating layer is arranged on one side, away from the insulating elastomer, of the first extension portion and the second extension portion, the conductivity of the metal coating layer is limited to be larger than that of the conductive metal sheet, so that the first extension portion, the base plate, the second extension portion and the other base plate are good in electric connection performance, and electric contact is good.

In one embodiment, the conductive metal sheet is a copper sheet, an iron sheet or a stainless steel sheet.

The crimping electric connector improves the electric connection performance by limiting the conductive metal sheet to be the copper sheet, the iron sheet or the stainless steel sheet with better conductivity.

In one embodiment, the insulating elastomer is a thermosetting resin member and/or a thermoplastic elastomer member having elasticity.

The crimp electric connector improves the elastic performance of the insulating elastomer by limiting the insulating elastomer to be a thermosetting resin part with elasticity, a thermoplastic elastomer or a combination of the thermosetting resin part and the thermoplastic elastomer.

In one embodiment, the insulating elastomer is a silicone resin member.

According to the crimping electric connector, the insulating elastomer is limited to be the organic silicon resin part, so that the insulating elastomer has both elastic performance and heat resistance, and the thermal stability of the insulating elastomer is further ensured when the crimping electric connector is welded and fixed on the substrate.

In one embodiment, the insulating elastomer is a styrenic, olefinic, polyetherester, polyurethane, polyamide, or vinyl chloride-based elastomer.

According to the crimp electric connector, the insulating elastomer is limited to be a styrene, olefin, polyether ester, polyurethane, polyamide or vinyl chloride elastic part, so that the insulating elastomer has both elastic performance and stable structural performance, and the structural stability of the insulating elastomer is further ensured.

In one embodiment, a side of the first extension portion or the second extension portion, which faces away from the insulating elastic body, is provided with a conductive double-sided adhesive tape.

According to the crimping electric connector, the conductive double-sided adhesive tape is arranged on one side, away from the insulating elastic body, of the first extension portion or the second extension portion, so that the insulating elastic body can be directly bonded to the substrate without welding operation, the preparation process is simplified, and the optional range of preparation materials of the insulating elastic body is expanded.

In one embodiment, the insulating elastomer includes an inner core part and an outer ring part surrounding the core part, wherein the inner core part is a thermoplastic elastomer, and the outer ring part is a thermosetting resin.

Above-mentioned crimping electric connector is thermoplastic elastic component through injecing the inner core portion to improve whole insulating elastomer's structural stability, be thermosetting resin spare through injecing outer loop portion, with the heat stability that improves whole insulating elastomer, thereby make insulating elastomer have structural elasticity performance, stability and heat stability concurrently, structural performance is better.

Drawings

FIG. 1 is a schematic view of a crimped electrical connector according to an embodiment of the present invention;

FIG. 2 is a schematic view of a crimped electrical connector according to another embodiment of the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention illustrating the assembly of the crimped electrical connector;

FIG. 4 is a schematic view of an exemplary embodiment of a crimp connector;

FIG. 5 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to a first surface according to an embodiment of the invention;

FIG. 6 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to another embodiment of the invention;

FIG. 7 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to yet another embodiment of the invention;

FIG. 8 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to a further embodiment of the invention;

FIG. 9 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to another embodiment of the invention;

FIG. 10 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to yet another embodiment of the invention;

FIG. 11 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to a further embodiment of the invention;

FIG. 12 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to another embodiment of the invention;

FIG. 13 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface in accordance with a further embodiment of the invention;

FIG. 14 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to a further embodiment of the invention;

fig. 15 is a schematic cross-sectional view of a crimped electrical connector in a direction perpendicular to the first surface according to another embodiment of the invention.

Reference numerals:

10. crimp electrical connector 100, insulating elastomer 111, first surface

112. Second surface 113, third surface 114, fourth surface

115. Fifth surface 116, sixth surface 117, through-hole

118. Slot hole 119, inner core portion 120, outer ring portion

200. Conductive metal sheet 211, embedding part 212, first extension part

213. The second extension portion 214, the first hook 215, and the second hook

300. First substrate 400, second substrate 500, adhesive layer

600. Metal coating layer 700 and conductive double-sided adhesive tape

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 2, 3 and 4, an embodiment of the present invention provides a crimping electrical connector 10, including an insulating elastic body 100 and a conductive metal sheet 200, wherein the insulating elastic body 100 provides an elastic function for crimping the electrical connector 10, the conductive metal sheet 200 provides an electrical connection function for crimping the electrical connector 10, and when the particular arrangement is made, the conductive metal sheet 200 has an embedded portion 211 and a first extending portion 212 and a second extending portion 213 located at two sides of the embedded portion 211, the embedded portion 211 is embedded in the insulating elastic body 100, and the embedded portion 211 is located entirely inside the insulating elastic body 100, the first extending portion 212 and the second extending portion 213 extend out of a set of two opposite first diagonal regions AA of the insulating elastic body 100, and the first extending portion 212 and the second extending portion 213 are bent and fixed on opposite surfaces of the insulating elastic body 100, as shown in fig. 3, the first extension portion 212 is bent along the direction C, and the second extension portion 213 is bent along the direction D, after bending, the extension directions of the first extension portion 212 and the second extension portion 213 are opposite.

In the crimp electrical connector 10, the conductive metal sheet 200 is embedded in the elastic member, and the first extension 212 and the second extension 213 are bent and fixed to the surface of the insulating elastic body 100 to fix the conductive metal sheet 200 and the elastic member as a whole, for convenience of description, as shown in fig. 4, the first extension 212 is used as a fixed end, the first extension 212 is used as a connection terminal fixed to the first substrate 300 and electrically connected to the first substrate 300, and the second extension 213 is used as a crimping end disposed near the second substrate 400, the second extension 213 is used as another connection terminal to be crimped with the second substrate 400 under pressure, so as to electrically connect the first substrate 300 and the second substrate 400, and at this time, the elastic member is compressed, and after the pressure is removed, the elastic member rebounds to reset the second extension 213; the elastic resilient deformation in the crimping electrical connector 10 is from the insulating elastic body 100, but the non-conductive metal sheet 200 itself, so the electrical contact performance of the conductive metal sheet 200 is still better after multiple crimping operations, the electrical contact is good, and because the first extension 212 and the second extension 213 are fixed on the surface of the insulating elastic body 100, the surfaces of the first extension 212 and the second extension 213 as the connection terminals are planes, the contact area is significantly increased, and further the electrical connection performance of the crimping electrical connector 10 is better, the electrical contact is good, and the first extension 212 is conveniently fixed on the first substrate 300 by welding or the like, so that the reliability of the connection between the first extension 212 and the first substrate 300 is ensured.

In addition to the crimp electrical connector 10, the electrical connection performance can be improved by increasing the areas of the first extending portion 212 and the second extending portion 213, and referring to fig. 5, fig. 6 and fig. 7 together, in a preferred embodiment, the insulating elastic body 100 has a first surface 111, a second surface 112, a third surface 113 and a fourth surface 114, wherein the first surface 111 and the second surface 112 are parallel to each other, the third surface 113 connects the first surface 111 and the second surface 112, the fourth surface 114 also connects the first surface 111 and the second surface 112, the cross section of the conductive metal sheet 200 perpendicular to the first surface 111 is zigzag, such that the conductive metal sheet 200 can save conductive metal material and reduce metal resistance, the cross section of the conductive metal sheet 200 perpendicular to the first surface 111 can be zigzag or substantially zigzag, but is not limited thereto, other configurations are also possible, for example, the cross-section of the embedded portion 211 of the conductive metal sheet 200 perpendicular to the first surface 111 may be S-shaped.

Wherein: the first extension 212 is fixed on the first surface 111, and a projection of the first extension 212 on the first surface 111 covers the first surface 111; the second extension 213 is fixed on the second surface 112, and a projection of the second extension 213 on the second surface 112 covers the second surface 112. In a specific arrangement, the projection of the first extension 212 on the first surface 111 may just cover the first surface 111, the projection profile of the first extension 212 on the first surface 111 may be located outside the first surface 111, likewise, the projection of the second extension 213 on the second surface 112 may just cover the second surface 112, and the projection profile of the second extension 213 on the second surface 112 may be located outside the second surface 112.

In the crimp electrical connector 10, the projection of the first extension portion 212 on the first surface 111 is limited to cover the first surface 111, so that the contact area between the first extension portion 212 and the first substrate 300 is larger, which facilitates the soldering operation between the first extension portion 212 and the first substrate 300, and the soldering area is larger, which improves the soldering stability, thereby making the electrical connection between the first extension portion 212 and the first substrate 300 better; the second surface 112 is covered by defining the projection of the second extension portion 213 on the second surface 112, so that the contact area of the second extension portion 213 and the second substrate 400 is larger, and further, the electrical connection performance is better and the electrical contact is better; in specific arrangement, the areas of the first surface 111 and the second surface 112 are the same, and the third surface 113 and the fourth surface 114 are parallel, at this time, the insulating elastic body 100 is a regular cylinder structure, which is convenient for processing and preparation and bending and fixing of the first extension portion 212 and the second extension portion 213, of course, the areas of the first surface 111 and the second surface 112 may also be different, and the area of the first surface 111 may be set to be larger than the area of the second surface 112, so that the area of the first extension portion 212 welded to the first base plate 300 is larger, which is convenient for the welding operation of the first extension portion 212 and the first base plate 300, and the welding area is larger, which improves the welding stability.

The manner in which the first extension 212 and the second extension 213 protrude from the set of two opposite first diagonal areas AA of the insulating elastic body 100 has various ways, as shown in fig. 5, specifically, the first extension 212 and the second extension 213

The second extension 213 extends out of the insulating elastic body 100 along the diagonal direction X of the insulating elastic body 100, in which case the first extension extends out from the intersection of the first surface 111 and the third surface 113, and the second extension extends out from the intersection of the second surface 112 and the fourth surface 114.

In the crimp electrical connector 10, by defining the first extension portion 212 and the second extension portion 213 extending along the diagonal direction X of the insulating elastic body 100, the bending radius of the first extension portion 212 when bending is located outside the first surface 111, and the bending radius of the second extension portion 213 when bending is located outside the second surface 112, it is further ensured that the projection of the first extension portion 212 on the first surface 111 covers the first surface 111, so that the area of the first extension portion 212 is larger and is better fixed on the first substrate 300, and the projection of the second extension portion 213 on the second surface 112 covers the second surface 112, so that the area of the second extension portion 213 is larger, which facilitates the crimping operation, and thus the whole crimp electrical contact of the crimp electrical connector 10 is good.

In order to facilitate the bending of the first and

second extensions

212 and 213, as shown in fig. 6, more specifically, the insulating elastic body 100 includes a fifth surface 115 and a sixth surface 116 which are oppositely disposed, the fifth surface 115 connects the first and

third surfaces

111 and 113, and the fifth surface 115 is inclined toward the second surface 112, the first extension 212 is protruded from the fifth surface 115, the sixth surface 116 connects the second surface 112 and the fourth surface 114, and the sixth surface 116 is inclined toward the first surface 111, the second extension 213 is protruded from the sixth surface 116, in a specific arrangement, the angle of the fifth surface 115 inclined toward the second surface 112 and the angle of the sixth surface 116 inclined toward the first surface 111 may be the same or different, the specific angle may be determined according to the bending radius of the first extension 212 and the second extension 213.

In the crimp electrical connector 10, by providing the fifth surface 115 between the first surface 111 and the third surface 113, the first extension portion 212 extends from the fifth surface 115, so that the bending center of the first extension portion 212 during bending is moved downward from the side of the first surface 111 away from the second surface 112 to the side of the first surface 111 facing the second surface 112, so as to facilitate bending of the first extension portion 212, and at this time, the gap between the first extension portion 212 and the first surface 111 after bending is small, so as to facilitate fixing of the first extension portion 212 and the first surface 111; similarly, by providing the sixth surface 116 between the second surface 112 and the fourth surface 114, the second extending portion 213 extends from the sixth surface 116, so that the bending center of the second extending portion 213 when bending is moved from the side of the second surface 112 away from the first surface 111 to the side of the second surface 112 facing the first surface 111, so as to facilitate bending of the second extending portion 213, and at this time, the gap between the second extending portion 213 and the second surface 112 after bending is smaller, so as to facilitate fixing of the second extending portion 213 and the second surface 112, the crimp electrical connector 10 effectively utilizes the external space of the insulating elastic body 100, so that the overall size is smaller, and miniaturization is facilitated.

The manner of extending the first extension 212 and the second extension 213 from the set of two opposite first diagonal regions AA of the insulating elastic body 100 has various ways, as shown in fig. 7, specifically, the first extension 212 extends from the third surface 113, and the second extension 213 extends from the fourth surface 114, in which the distance from the extending end of the first extension 212 to the first surface 111 and the distance from the extending end of the second extension 213 to the second surface 112 may be the same or different, and the specific distance may be determined according to the bending radius of the first extension 212 and the second extension 213.

In the crimp electrical connector 10, the first extension portion 212 is defined to protrude out of the third surface 113, so that the bending center of the first extension portion 212 during bending is moved downward from the side of the first surface 111 away from the second surface 112 to the side of the first surface 111 toward the second surface 112, so as to facilitate bending of the first extension portion 212, and at this time, the gap between the first extension portion 212 and the first surface 111 after bending is smaller, so as to facilitate fixing of the first extension portion 212 and the first surface 111; similarly, by defining the second extension portion 213 extending out of the fourth surface 114, so that the bending center of the second extension portion 213 during bending is moved from the side of the second surface 112 away from the first surface 111 to the side of the second surface 112 facing the first surface 111, so as to facilitate bending of the second extension portion 213, and at this time, the gap between the second extension portion 213 and the second surface 112 after bending is small, so as to facilitate fixing of the second extension portion 213 and the second surface 112, the crimp electrical connector 10 effectively utilizes the external space of the insulating elastic body 100, so that the dimension in the stacking direction of the first surface 111 and the second surface 112 is small, which is beneficial for miniaturization.

In order to improve the elastic performance of the insulating elastic body 100, referring to fig. 7, 8, 9 and 10 together, in a preferred embodiment, two sets of through holes 117 are provided on the insulating elastic body 100, the two sets of through holes 117 are located at two sides of the embedded portion 211, and each through hole 117 penetrates through the insulating elastic body 100 and has an axial direction parallel to the first surface 111 and the second surface 112.

In the crimp electrical connector 10, the through hole 117 is disposed such that the insulating elastic body 100 can elastically deform not only toward the outer side of the outer contour thereof, but also inside thereof, so that the through hole 117 is disposed on the insulating elastic body 100 to expand the deformation space of the insulating elastic body 100, thereby improving the elastic performance thereof, and further enabling the overall reciprocating elastic performance of the crimp electrical connector 10. In specific setting, the number of each group of through holes 117 may be one, two, three, or more than three, the plurality of through holes 117 may be uniformly arranged on the insulating elastic body 100, the two groups of through holes 117 may be located at two sides of the embedding portion 211 to ensure the balance of elastic deformation, and the number of the two groups of through holes 117 may be the same or different, and the specific setting manner of the through holes 117 on the insulating elastic body 100 is determined according to the actual condition of the crimping electrical connector 10, so as to further improve the elastic performance of the insulating elastic body 100, and the plurality of blind holes may be uniformly arranged on the insulating elastic body 100.

The specific arrangement of the through holes 117 on the insulating elastic body 100 is various, as shown in fig. 8, the through holes 117 are all arranged in the outer contour of the insulating elastic body 100 to facilitate the arrangement of the through holes 117, although the through holes 117 are not limited to be arranged inside the outer contour of the insulating elastic body 100, specifically, referring to fig. 7, 9 and 10 together, each group of through holes 117 includes a slot 118, the slot 118 is opened at the edge of the second diagonal region BB of the insulating elastic body 100, when the number of each group of through holes 117 is one, the through holes 117 are the slot 118, when the number of each group of through holes 117 is multiple, the through holes 118 and the through holes 117 arranged in the outer contour of the insulating elastic body 100 may be included, and further, each group of the through holes 117 is all the slot 118.

In the crimp electrical connector 10 described above, the aperture of the through hole 117 may be determined according to the elasticity and mechanical properties of the insulating elastic body 100, the slot 118 formed by opening the through hole 117 at the edge of the second diagonal area BB of the insulating elastic body 100 is capable of increasing the deformation space of the insulating elastic body 100, thereby further improving the elastic performance of the insulating elastic body 100, when the slot 118 is specifically arranged, the number of the slot 118 may be one, two or more, the position of the slot 118 may be that the slot is opened at a region of the third surface 113 close to the second surface 112, a region of the second surface 112 close to the third surface 113, a junction of the third surface 113 and the second surface 112, the fourth surface 114, a region of the first surface 111 close to the fourth surface 114, a region of the fourth surface 114 close to the first surface 111, and a junction of the first surface 111 and the second surface 112, and the number and the arrangement position of the slots 118 are determined according to the actual condition of the crimping electrical connector 10.

In order to facilitate the fixed connection between the first extending portion 212 and the first surface 111, and between the second extending portion 213 and the second surface 112, referring to fig. 9, 11 and 12 together, specifically, the end of the first extending portion 212 far from the third surface 113 is provided with a first hook 214, the first hook 214 and the first extending portion 212 may be an integral structure, and the first hook 214 is formed by bending to be connected with the slot 118 adjacent thereto in a snap-fit manner; the end of the second extending portion 213 away from the fourth surface 114 is provided with a second hook 215, the second hook 215 and the second extending portion 213 can be an integral structure, and the second hook 215 is buckled with the slot 118 close to the second hook by bending.

In the crimp electrical connector 10, when each set of through holes 117 includes at least one slot 118, the first extending portion 212 is fixedly connected to the first surface 111 by the snap-fit connection of the first hook 214 and the slot 118 adjacent thereto, and the second extending portion 213 is fixedly connected to the second surface 112 by the snap-fit connection of the second hook 215 and the slot 118 adjacent thereto, so that the first extending portion 212 and the first surface 111, and the second extending portion 213 and the second surface 112 can be well fixed by the snap-fit connection, so as to prevent the first extending portion 212 and the second extending portion 213 from falling off from the insulating elastic body 100 during use.

In addition to the above embodiments, the fixed connection between the first extension 212 and the first surface 111, and the fixed connection between the second extension 213 and the second surface 112 are not limited to the above snap connection, and may also be in other structures, as shown in fig. 4-8, 10, 13, 14 and 15, in a preferred embodiment, the first extension 212 and the second extension 213 are fixed on the opposite surfaces of the insulating elastic body 100 by an adhesive layer 500.

In the crimp electrical connector 10, the adhesive layer 500 is used to fixedly connect the first extension portion 212 and the first surface 111, and the adhesive layer 500 is used to fixedly connect the second extension portion 213 and the second surface 112, so that the adhesive bonding of the adhesive layer 500 can better fix the first extension portion 212 and the first surface 111, and the second extension portion 213 and the second surface 112, so as to prevent the first extension portion 212 and the second extension portion 213 from falling off from the insulating elastic body 100 during use. It should be noted that the fixing connection manner of the first extension 212 and the first surface 111, and the second extension 213 and the second surface 112 is not limited to the whole snap connection, or the whole is glued by the adhesive layer 500, and a part of the snap connection may also be glued by the adhesive layer 500, for example, the first extension 212 and the first surface 111 are fixed by the snap connection, and the second extension 213 and the second surface 112 are fixed by the adhesive layer 500.

Specifically, the adhesive layer 500 may be formed by heat curing of liquid silicone gel, but is not limited thereto.

In the crimp electrical connector 10, the adhesive layer 500 may be formed by thermosetting of the liquid silicone rubber, the adhesive layer 500 formed after curing has good elasticity and insulation, and the liquid silicone rubber may be bonded to the first extension portion 212 and the second extension portion 213 when cured, and may form the solid adhesive layer 500 after curing, and the adhesive layer 500 may maintain elasticity, may not be melted when reheated, but may maintain adhesion, and may maintain adhesion even when soldered, and thus, the adhesive layer 500 formed by thermosetting of the liquid silicone rubber may have good elasticity and good connection stability.

In addition to the above embodiments, in order to achieve the embedding of the embedding portion 211 and the insulating elastic body 100, specifically, the conductive metal sheet 200 and the insulating elastic body 100 are injection molded as a whole, but is not limited thereto, and may also be a production process such as die pressing, extrusion, and the like.

As shown in fig. 3, in the crimping electrical connector 10, during the specific manufacturing process, the conductive metal sheet 200 may be pre-bent, and then the insulating elastomer 100 is formed on the pre-bent conductive metal sheet 200 by an injection molding machine, so that the conductive metal sheet 200 and the insulating elastomer 100 are embedded together after the injection molding, thereby forming an integrated structure. In a specific arrangement, the pre-bending may include bending the first extending portion 212 and the second extending portion 213 at a certain angle relative to the embedding portion 211, and may further include bending an end portion of the first extending portion 212 far from the third surface 113 to form a first hook 214, and bending an end portion of the second extending portion 213 far from the fourth surface 114 to form a second hook 215. The crimping electric connector 10 can be manufactured only by injection molding, bending and fixing, the manufacturing process is simple, automatic continuous production can be effectively realized, and the production efficiency is improved.

On the basis of the above embodiments, the electrical connection performance can be improved by changing the material of the conductive metal sheet 200, as shown in fig. 11-14, in a preferred embodiment, the sides of the first extension portion 212 and the second extension portion 213 facing away from the insulating elastic body 100 are provided with a metal coating layer 600, and the conductivity of the metal coating layer 600 is greater than that of the conductive metal sheet 200.

In the crimp electrical connector 10, the metal coating 600 is disposed on the sides of the first extension portion 212 and the second extension portion 213 facing away from the insulating elastic body 100, and the electrical conductivity of the metal coating 600 is limited to be greater than that of the conductive metal sheet 200, so that the electrical connection performance between the first extension portion 212 and the first substrate 300, and the electrical connection performance between the second extension portion 213 and the second substrate 400 are good, and the electrical contact is good. In a specific setting, the metal coating layer 600 may be prepared by printing, spraying, spin coating, or the like, and the metal coating layer 600 may completely cover an area of the first extension portion 212 above the first surface 111, or may only coat the first extension portion 212 directly above the first extension portion 212, and likewise, the metal coating layer 600 may completely cover an area of the second extension portion 213 above the second surface 112, or may only coat the second extension portion 213 directly above the second extension portion 213.

Specifically, the conductive metal sheet 200 may be a copper sheet, an iron sheet, or a stainless steel sheet, but is not limited thereto.

In the crimp electrical connector 10, the conductive metal sheet 200 is limited to be a copper sheet, an iron sheet or a stainless steel sheet with good conductivity, so as to improve the electrical connection performance, at this time, the material of the corresponding metal coating 600 may be silver, zinc, or the like, and the specific material of the conductive metal sheet 200 and the material of the metal coating 600 may be determined according to the actual situation of the crimp electrical connector 10.

On the basis of the above embodiments, the elastic performance can also be improved by changing the material of the insulating elastic body 100, and in a preferred embodiment, the insulating elastic body 100 can be a thermosetting resin member and/or a thermoplastic elastic member having elasticity.

Since the crimp electrical connector 10 has better elastic properties of both the thermosetting resin and the thermoplastic elastic material, the insulating elastomer 100 is limited to be a thermosetting resin member, a thermoplastic elastic member or a combination of the thermosetting resin member and the thermoplastic elastic member, which has elasticity, so as to improve the elastic properties of the insulating elastomer 100. Of course, the specific material and structural composition of the insulating elastic body 100 may be determined according to the requirements of the processing temperature, the required elastic function, and the like in the case of a mobile terminal product.

When the insulating elastic body 100 is a thermosetting resin member, specifically, the insulating elastic body 100 may be a silicone resin member.

In the crimp electrical connector 10, the insulating elastomer 100 is defined as the silicone resin member, so that the insulating elastomer 100 has both elastic performance and heat resistance, thereby ensuring thermal stability of the insulating elastomer 100 when the crimp electrical connector 10 is soldered and fixed to a substrate. Of course, the material of the insulating elastomer 100 is not limited to the silicone resin, and may be other thermosetting resins, for example, a mixture of one or more of unsaturated polyester resin, epoxy resin, phenol resin, melamine formaldehyde resin, furan resin, polybutadiene resin, and silicone resin, which have good heat resistance and elasticity, and when the insulating elastomer 100 is prepared by using these materials, a plurality of mixed resin materials may be further adopted or a heat resistance auxiliary agent and an elastic auxiliary agent may be added according to the elasticity performance and the heat resistance performance of these materials to improve the heat resistance performance or the elasticity performance of the insulating elastomer 100.

When the insulating elastomer 100 is a thermoplastic resin material, the insulating elastomer 100 may be specifically a styrene-based, olefin-based, polyether-ester-based, polyurethane-based, polyamide-based, or vinyl chloride-based elastic material.

In the crimp electrical connector 10, the insulating elastomer 100 is defined as a styrene, olefin, polyether ester, polyurethane, polyamide or vinyl chloride elastomer, so that the insulating elastomer 100 has both elastic performance and stable structural performance, and the structural stability of the insulating elastomer 100 is further ensured. Of course, the material of the insulating elastic body 100 is not limited to the above material, and may be other thermoplastic resin materials.

When the insulating elastic body 100 is a combination of a solid resin member and a thermoplastic elastic member, as shown in fig. 15, specifically, the insulating elastic body 100 includes an inner core portion 119 and an outer ring portion 120 surrounding the core portion, the inner core portion 119 is a thermoplastic elastic member, and the outer ring portion 120 is a thermosetting resin member.

In the crimp electrical connector 10, the inner core portion 119 is defined as a thermoplastic elastic member to improve the structural stability of the entire insulating elastic body 100, and the outer ring portion 120 is defined as a thermosetting resin member to improve the thermal stability of the entire insulating elastic body 100, so that the insulating elastic body 100 has structural elastic performance, stability and thermal stability, and the structural performance is good. In a specific arrangement, the inner core 119 may be a silicone member, the outer ring 120 may be a styrene-based elastic member, the inner core 119 may be a square structure, a cylindrical structure, or the like, the outer ring 120 may be a cavity-type structure, and the specific materials, sizes, and structural forms of the inner core 119 and the outer ring 120 are determined according to the actual flexibility and mechanical strength of the crimp electrical connector 10.

The first extending portion 212 may be fixedly connected to the first substrate 300 by welding, and the material of the insulating elastic body 100 at this time needs to have high thermal stability, and according to the requirement of the processing temperature when the crimping electrical connector 10 is applied to a mobile terminal product, when the material of the insulating elastic body 100 used has low thermal stability, as shown in fig. 12 and 13, specifically, a conductive double-sided tape 700 may be disposed on a side of the first extending portion 212 away from the insulating elastic body 100.

In the crimp electrical connector 10, the conductive double-sided tape 700 is disposed on the side of the first extension portion 212 facing away from the insulating elastic body 100, so that the insulating elastic body 100 can be directly bonded to the substrate without performing a soldering operation, the manufacturing process is simplified, and the selectable range of the manufacturing materials of the insulating elastic body 100 is expanded. In a specific configuration, one side of the conductive double-sided tape 700 may be bonded to the first extending portion 212, and then the protective layer is torn off to bond the conductive double-sided tape 700 to the first substrate 300, a projection of the conductive double-sided tape 700 on the first extending portion 212 may completely cover an area of the first extending portion 212 above the first surface 111, or may partially cover the area, and a specific structural form, material, and size of the conductive double-sided tape 700 are determined according to an actual situation of the crimping electrical connector 10.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

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 a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The crimping electric connector is characterized by comprising an insulating elastic body and a conductive metal sheet, wherein the conductive metal sheet is embedded in the insulating elastic body and is provided with a first extending part and a second extending part which extend out of a group of opposite diagonal areas of the insulating elastic body, and the first extending part and the second extending part are fixed on the opposite surfaces of the insulating elastic body after being bent.

2. The crimped electrical connector according to claim 1, wherein the insulating elastic body has a first surface and a second surface parallel to each other, a third surface and a fourth surface connecting the first surface and the second surface, respectively, and the conductive metal piece has a zigzag shape in a cross section perpendicular to the first surface, wherein:

3. The crimped electrical connector according to claim 2, wherein the first and second extensions protrude out of the insulating elastic body in a diagonal direction of the insulating elastic body; preferably, the insulating elastic body includes a fifth surface and a sixth surface which are oppositely arranged, the fifth surface connects the first surface and the third surface and is inclined toward the second surface, the first extension portion is protruded from the fifth surface, the sixth surface connects the second surface and the fourth surface and is inclined toward the first surface, and the second extension portion is protruded from the sixth surface.

4. The crimped electrical connector of claim 2, wherein the first extension extends beyond the third surface and the second extension extends beyond the fourth surface.

5. The electrical crimp connector as claimed in claim 2, wherein two sets of through holes are provided on the insulating elastic body, the two sets of through holes are located on two sides of a portion of the conductive metal sheet embedded in the insulating elastic body, and an axial direction of the through holes is parallel to the first surface and the third surface.

6. The crimped electrical connector of claim 5, wherein each set of through-holes includes a slot therein that opens at an edge of another set of opposing diagonal regions of the insulating elastomer; preferably, a first hook is arranged at the end part of the first extension part far away from the third surface, and the first hook is connected with the groove hole close to the first hook in a buckling manner; and a second clamping hook is arranged at the end part of the second extension part far away from the fourth surface and is connected with the groove hole close to the second clamping hook in a clamping manner.

7. The crimped electrical connector according to any one of claims 1-6, wherein the first and second extensions are secured to opposing surfaces of the insulating elastomer by an adhesive layer; preferably, the adhesive layer is formed by heat curing of liquid silicone gel.

8. Crimped electrical connector according to any one of claims 1 to 6, wherein the conductive metal sheet is injection moulded in one piece with the insulating elastomer.

9. Crimped electrical connector according to any one of claims 1 to 6, wherein the sides of the first and second extensions facing away from the insulating elastomer are provided with a metallic coating, the metallic coating having a conductivity greater than that of the conductive metal sheet; preferably, the conductive metal sheet is a copper sheet, an iron sheet or a stainless steel sheet.

10. Crimp electrical connector according to any one of claims 1 to 6, wherein the insulating elastomer is a thermosetting resin member having elasticity, preferably a silicone resin member, and/or a thermoplastic elastomer member, preferably a styrene-based, olefin-based, polyether ester-based, polyurethane-based, polyamide-based, or vinyl chloride-based elastomer member; preferably, a side of the first extension portion or the second extension portion facing away from the insulating elastic body is provided with a conductive double-sided tape, and/or the insulating elastic body comprises an inner core portion and an outer ring portion surrounding the core body, the inner core portion is a thermoplastic elastic member, and the outer ring portion is a thermosetting resin member.