CN113783011A

CN113783011A - Electrical connector

Info

Publication number: CN113783011A
Application number: CN202111026412.9A
Authority: CN
Inventors: 黄常伟
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2021-12-10
Anticipated expiration: 2041-09-02
Also published as: CN113783011B

Abstract

The invention discloses an electric connector, comprising: the insulating body is provided with a terminal groove which penetrates up and down; the conductive terminal is accommodated in the terminal groove, and the conductive terminal includes: a contact portion; a lead-in part; the extension arm and the connecting arm are used for connecting the contact part and the guide connection part, the connecting arm is positioned in front of the extension arm, one side of the extension arm and one side of the connecting arm, which face each other, are arranged as inner sides, and one side of the extension arm and one side of the connecting arm, which depart from each other, are arranged as outer sides; the extension arm comprises a base part, an upper elastic arm and a lower elastic arm, wherein the upper elastic arm is connected with the base part and the contact part, the lower elastic arm is connected with the base part and the guide connection part, and a bent part is formed at the connection part of the upper elastic arm and the base part; the material connecting part extends outwards from the outer side of the upper elastic arm and is far away from the base part compared with the bending part; the limiting part is formed by inwards extending from the inner side of the upper elastic arm, the limiting part and the material connecting part are arranged relative to the upper elastic arm, the limiting part is positioned in the terminal groove, and when the material connecting part is stressed to deflect towards one side in the left-right direction, the limiting part deflects towards the opposite side in the left-right direction and is limited by the groove wall of the terminal groove.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly, to an electrical connector for simultaneously transmitting electrical signals through two paths.

[ background of the invention ]

The conventional electrical connector generally includes an insulative housing and a plurality of conductive terminals disposed in a plurality of terminal slots of the insulative housing, each of the conductive terminals includes a base, an upper spring arm, a lower spring arm and a connecting arm, the base extends along the up-down direction and is arranged in the terminal groove, the upper elastic arm extends upwards and forwards from the base, the upper elastic arm protrudes upwards to form a contact part for electrically contacting with a first connecting piece, the lower elastic arm extends downwards and forwards from the base part, the lower elastic arm protrudes downwards to form a guide connection part for electrically contacting with a second butt joint part, the connecting arm connects the upper elastic arm and the lower elastic arm in the up-down direction, the connecting arm is located in front of the base, and the base, the upper elastic arm, the connecting arm and the lower elastic arm are sequentially connected end to end. The side of the extension arm facing each other and the side of the connecting arm departing from each other are both defined as inner sides and outer sides, a bending part is formed at the joint of the upper elastic arm and the base part, and a material connecting part is formed by upward extending from the bending part and is used for being connected to a material belt.

When the contact part is in butt joint with a chip module, the upper elastic arm is stressed and deformed, so that the bent part is stressed greatly, but the connecting part is formed by upwards extending from the bent part, the structural strength of the bent part is enhanced, the bent part is not easy to elastically deform, the upper elastic arm is not beneficial to stressed and deformed, and when the material belt is broken, the bent part is stressed by breaking force in the left and right directions, and the performance of the bent part is easy to damage.

In addition, the conductive terminal connected with the material belt is assembled to the insulating body, a gap exists between the conductive terminal and the groove wall of the terminal groove in the left-right direction, when the material belt is swung in the left-right direction perpendicular to the front-back direction, so that the connection part and the material belt are broken, when the material belt is stressed to drive the connection part to deflect towards one side in the left-right direction, the position where the upper elastic arm is connected with the connection part can also deflect towards one side, however, when the breaking force applied by an operator is too large, the deflection angle of the elastic arm in the transverse direction is too large, the upper elastic arm is easily deformed to damage the structure of the conductive terminal, and even the conductive terminal is damaged or broken.

Therefore, there is a need for a new electrical connector to overcome the above problems.

[ summary of the invention ]

In view of the problems encountered in the background art, an object of the present invention is to provide an electrical connector that prevents excessive deformation of a conductive terminal when a material strip is broken.

In order to achieve the purpose, the invention adopts the following technical means: an electrical connector, comprising: the insulating body is provided with at least one terminal groove which penetrates through the insulating body up and down; at least one conductive terminal, the conductive terminal accept in the terminal groove, conductive terminal includes: a contact part exposed upwards from the terminal groove; the conducting connection part is exposed downwards to the terminal groove; the extension arm comprises a base part, an upper elastic arm and a lower elastic arm, wherein the upper elastic arm is connected with the base part and the contact part, the lower elastic arm is connected with the base part and the guide part, the upper elastic arm is formed by bending and extending the base part, a bent part is formed at the joint of the upper elastic arm and the base part, and the contact part and the guide part are positioned in front of the base part; the connecting part extends outwards from the outer side of the upper elastic arm and is used for being connected to a material belt, and the connecting part is far away from the base part than the bending part and is connected to the upper elastic arm; the limiting part is formed by inwards extending the inner side of the upper elastic arm, the limiting part is connected with the position of the upper elastic arm and the position of the connecting part connected with the upper elastic arm are oppositely arranged, at least part of the limiting part is positioned in the terminal groove, and when the material belt is stressed and deflects towards one side of the left direction and the right direction, the limiting part deflects towards the opposite side in the left direction and the right direction and is limited by the groove wall of the terminal groove.

Further, the distance between the upper elastic arm and the corresponding groove wall of the terminal groove in the left-right direction is not greater than the size of the limiting part in the up-down direction.

Furthermore, the limiting part is a cantilever structure which is formed by extending from the upper elastic arm and is provided with a free end, and when the material belt is stressed and deflects towards one side in the left-right direction, the free end deflects towards the other side in the left-right direction and abuts against the groove wall of the terminal groove to be limited.

Furthermore, the free end and the connecting arm are positioned on the same plane, and a gap is formed between the free end and the connecting arm.

Furthermore, the contact part, the guide connection part, the extension arm and the connecting arm enclose a through groove together, and the limiting part is positioned in the through groove.

Further, the limiting part extends from the upper elastic arm and is connected to the connecting arm.

Further, the base portion extends in the up-down direction, and the width of the base portion in the front-rear direction is smaller than the width of the connecting portion in the front-rear direction.

Further, the material connecting part is provided with a fracture edge which is horizontally arranged.

Furthermore, the conductive terminal is provided with an upper blocking part and a lower blocking part which are formed by extending outwards from the outer side of the base part, the upper blocking part and the lower blocking part are arranged at intervals up and down, the insulating body is provided with a convex part corresponding to the terminal groove, the convex part is formed by protruding forwards from the rear side groove wall of the terminal groove, and the convex part is accommodated between the upper blocking part and the lower blocking part in the up-down direction.

Further, the conductive terminal has an upper stop portion and a lower stop portion formed by extending outward from the outer side of the connecting arm, the upper stop portion and the lower stop portion are arranged at intervals up and down, the insulating body is provided with a convex block corresponding to the terminal slot, the convex block is formed by protruding backwards from the front side slot wall of the terminal slot, and the convex block is accommodated between the upper stop portion and the lower stop portion in the up-down direction.

Further, the connecting arm includes a first upper arm, a second upper arm, a first lower arm, a second lower arm, and an intermediate arm, the first upper arm extends downward and rearward from the contact portion, the second upper arm extends forward from the first upper arm, the first lower arm extends upward and rearward from the guide portion, the second lower arm extends forward from the first lower arm, the intermediate arm is connected upward to the second upper arm and connected downward to the second lower arm, and the intermediate arm and the base portion are disposed opposite to each other in the front-rear direction.

Further, the conductive terminal has an upper stop portion and a lower stop portion formed by extending outward from the outer side of the middle arm, the upper stop portion and the lower stop portion are arranged at intervals up and down, the insulating body is provided with a lug corresponding to the terminal slot, the lug is formed by protruding forwards from the front side slot wall of the terminal slot, and the lug is accommodated between the upper stop portion and the lower stop portion in the up-down direction.

Further, the first upper arm is provided with a first abutting portion on the outer side thereof, the second upper arm is provided with a second abutting portion on the outer side thereof, the first lower arm is provided with a third abutting portion on the outer side thereof, the second lower arm is provided with a fourth abutting portion on the outer side thereof, the distance between the first abutting portion and the second abutting portion is a first distance, the distance between the third abutting portion and the fourth abutting portion is a second distance, the distance between the inner side of the second upper arm at the position corresponding to the second abutting portion and the inner side of the second lower arm at the position corresponding to the fourth abutting portion is defined as a third distance, the third distance is greater than the first distance and the second distance, when the electrical connector connects a first butt piece and a second butt piece to achieve electrical conduction, both the first distance and the second distance are reduced, the first abutting portion and the second abutting portion abut against each other in the vertical direction, and the third abutting portion and the fourth abutting portion abut against each other in the vertical direction.

Further, the second abutting portion and the fourth abutting portion are arranged in an up-and-down alignment manner.

Further, the intermediate arm is located in front of the contact portion and the guide portion.

Further, the conductive terminal is an integrated sheet terminal.

Compared with the prior art, the electric connector designed by the invention has the following beneficial effects:

according to the invention, the connecting material part is arranged at a position far away from the base part and connected with the upper elastic arm compared with the bending part, so that the bending part is avoided, the elastic deformation of the bending part caused by stress is facilitated, and the breaking force applied to the bending part in the left and right directions can be reduced when the broken edge between the material belt and the connecting material part is broken, and the performance of the bending part is prevented from being damaged. The material connecting part extends outwards from the outer side of the upper elastic arm, the limiting part extends inwards from the inner side of the upper elastic arm, the position of the limiting part connected with the upper elastic arm is opposite to the position of the connecting part connected with the upper elastic arm, the limiting part is at least partially positioned in the terminal groove, when the material belt is stressed to drive the material connecting part to deflect towards one side in the left and right directions, the material connecting part and the limiting part deflect with the upper elastic arm as the center, the position of the upper elastic arm connected with the material connecting part is stressed to deflect towards one side, the limiting part deflects towards the opposite side in the left and right directions and is limited by the groove wall of the terminal groove, the limiting part limits the deflection angle of the upper elastic arm to a certain degree, and prevents the upper elastic arm from damaging the structure of the conductive terminal due to overlarge deflection angle, and even to break or break the conductive terminals.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a first embodiment of an electrical connector according to the present invention and a first mating member and a second mating member;

FIG. 2 is a top view of the electrical connector of FIG. 1;

FIG. 3 is a schematic view of the electrical connector of FIG. 2 cut along line A-A and before being mated with the first mating member and the second mating member;

FIG. 4 is a schematic view of the electrical connector of FIG. 3 mated with the first mating member and the second mating member;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 2;

fig. 6 is a schematic view of the electrical connector of fig. 5 during a strip break;

fig. 7 is a schematic view of a conductive terminal of a second embodiment of the electrical connector of the present invention;

fig. 8 is a schematic view of the conductive terminal of fig. 7 assembled to the insulating body and during the process of breaking the tape.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

[ detailed description ] embodiments

For a better understanding of the objects, structure, features, and functions of the invention, reference should be made to the drawings and detailed description that follow.

For the convenience of describing a specific structure of an electrical connector 100 of the present invention, a front-back direction, a left-right direction and an up-down direction are defined, each pair of the front-back direction, the left-right direction and the up-down direction are perpendicular to each other, a forward direction in the front-back direction is a positive direction of an X axis, a rightward direction in the left-right direction is a positive direction of a Y axis, and an upward direction in the up-down direction is a positive direction of a Z axis.

As shown in fig. 1, in the up-down direction, the electrical connector 100 is electrically connected to a first mating device 200 in an upward direction and electrically connected to a second mating device 300 in a downward direction. In this embodiment, the first docking piece 200 is a chip, the second docking piece 300 is a circuit board, and the first docking piece 200 and the second docking piece 300 may be other components according to actual requirements.

As shown in fig. 1, the electrical connector 100 includes an insulative housing 1 and at least one conductive terminal 2 disposed on the insulative housing 1. In this embodiment, the conductive terminals 2 are provided with a plurality of integrated sheet-shaped terminal structures, and the number of the conductive terminals 2 may be changed according to actual requirements, or may be a terminal structure formed by stamping and bending.

As shown in fig. 3, the insulating body 1 is provided with at least one terminal slot 11 penetrating vertically, the conductive terminals 2 are assembled in the corresponding terminal slots 11 along the vertical direction, and the number of the terminal slots 11 corresponds to the number of the conductive terminals 2, so in this embodiment, the terminal slots 11 are provided in plural. The insulation body 1 is provided with a convex portion 12 and a convex block 13 corresponding to each terminal slot 11.

As shown in fig. 2 and 3, each of the terminal grooves 11 has two first groove walls 111 and two second groove walls 112, the two first groove walls 111 are disposed to face each other in the front-rear direction, the two second groove walls 112 are disposed to face each other in the left-right direction, the protrusion 12 is formed to protrude forward from the first groove wall 111 at the rear side of the corresponding terminal groove 11, the protrusion 13 is formed to protrude rearward from the first groove wall 111 at the front side of the corresponding terminal groove 11, the protrusion 13 is located in front of the protrusion 12, and the protrusion 12 and the protrusion 13 are disposed to correspond to each other in the front-rear direction, and in this embodiment, the protrusion 12 and the protrusion 13 are located at the middle position corresponding to the terminal groove 11 in the up-down direction.

As shown in fig. 3, each of the conductive terminals 2 includes a contact portion 21, a connecting portion 22, an extension arm 23, a connecting arm 24 and a through slot 25, in the up-down direction, the contact portion 21 is electrically connected to the first counterpart 200 upward, the connecting portion 22 is electrically connected to the second docking member 300, the extension arm 23 and the connecting arm 24 are respectively formed by bending and extending between the contact portion 21 and the connecting portion 22, and connects the contact portion 21 and the guide portion 22, the connecting arm 24 being located forward of the extension arm 23 in the front-rear direction, the contact portion 21, the guide portion 22, the extension arm 23 and the connecting arm 24 together enclose the through slot 25, the sides of the extension arms 23 and the connecting arms 24 facing each other are both defined as inner sides, while the sides facing away from each other are both defined as outer sides. The contact portion 21 and the guide portion 22 are both arc-shaped and convex outward.

As shown in fig. 3, each of the extension arms 23 includes a base 231, an upper elastic arm 232 and a lower elastic arm 233, the base 231 extends along the up-down direction, the upper elastic arm 232 extends upward and forward from the upper end of the base 231, the upper elastic arm 232 is connected to the contact portion 21 upward, the lower elastic arm 233 extends downward and forward from the lower end of the base 231, and the lower elastic arm 233 is connected to the guide portion 22 downward.

As shown in fig. 3, a bent portion R is formed at the connection between the base 231 and the upper elastic arm 232 and at the connection between the base 231 and the lower elastic arm 233, and the bent portion R is in an arc shape protruding outward.

As shown in fig. 3, each of the extension arms 23 further includes an upper blocking portion 234, a lower blocking portion 235 and a first groove 236, the upper blocking portion 234 and the lower blocking portion 235 are respectively formed by extending outward from the outer side of the base portion 231, that is, the upper blocking portion 234 and the lower blocking portion 235 are respectively formed by extending backward from the rear side of the base portion 231, the upper blocking portion 234 is located above the lower blocking portion 235 and disposed at an interval from top to bottom, the first groove 236 is formed between the upper blocking portion 234 and the lower blocking portion 235 in the up-down direction, the first groove 236 is configured to receive the protrusion 12, so that the upper blocking portion 234 is blocked by the protrusion 12 downward, and the lower blocking portion 235 is blocked by the protrusion 12 upward.

As shown in fig. 3, each of the connecting arms 24 includes a first upper arm 241, a second upper arm 242, a first lower arm 243, a second lower arm 244 and an intermediate arm 245, the first upper arm 241 is formed extending downward and rearward from the contact portion 21, the second upper arm 242 is formed extending forward from the first upper arm 241, the first lower arm 243 is formed by extending upward and backward from the connecting portion 22, the second lower arm 244 is formed by extending forward from the first lower arm 243, the intermediate arm 245 extends in the up-down direction, the intermediate arm 245 connects the second upper arm 242 upward and the second lower arm 244 downward, the intermediate arm 245 is disposed to face the base 231 in the front-rear direction, the intermediate arm 245 is located in front of the contact portion 21 and the guide portion 22 in the front-rear direction, and the connecting arms 24 are disposed vertically symmetrically with respect to the intermediate arm 245. Before the electrical connector 100 is mated with the first mating member 200 and the second mating member 300, the middle arm 245 is advanced beyond the contact portion 21 and the contact portion 22. In this embodiment, the second upper arm 242 extends forward and upward from the first upper arm 241, the second lower arm 244 extends forward and downward from the first lower arm 243, and the first upper arm 241, the second upper arm 242, the middle arm 245, the second lower arm 244 and the first lower arm 243 are sequentially connected end to end.

As shown in fig. 3, each of the connecting arms 24 further includes an upper stopping portion 246, a lower stopping portion 247, and a second groove 248, the upper stopping portion 246 and the lower stopping portion 247 are respectively formed by extending outward from the outer side of the connecting arm 24, the upper stopping portion 246 is located above the lower stopping portion 247 and is spaced up and down, the second groove 248 is formed between the upper stopping portion 246 and the lower stopping portion 247 in the up-down direction, the second groove 248 is used for receiving the bump 13, so that the upper stopping portion 246 is stopped by the bump 13 downward, and the lower stopping portion 247 is stopped by the bump 13 upward. In this embodiment, the upper stop portion 246 and the lower stop portion 247 respectively extend outward from the outer side of the middle arm 245, that is, the upper stop portion 246 and the lower stop portion 247 respectively extend forward from the front side of the middle arm 245. In other embodiments, the upper stopping portion 246 and the lower stopping portion 247 may be respectively formed to extend outward from other positions of the connecting arm 24 except for the intermediate arm 245, as long as the conductive terminal 2 can be restrained in the up-down direction.

As shown in fig. 3, the first upper arm 241 has a first contact portion 24a on the outer side thereof, the second upper arm 242 has a second contact portion 24b on the outer side thereof, the first lower arm 243 has a third contact portion 24c on the outer side thereof, the second lower arm 244 has a fourth contact portion 24d on the outer side thereof, and the second contact portion 24b and the fourth contact portion 24d are vertically aligned. A distance between the first contact portion 24a and the second contact portion 24b is defined as a first distance D1, a distance between the third contact portion 24c and the fourth contact portion 24D is defined as a second distance D2, a distance between a position of an inner side of the second upper arm 242 corresponding to the second contact portion 24b and a position of an inner side of the second lower arm 244 corresponding to the fourth contact portion 24D is defined as a third distance D3, and the third distance D3 is greater than the first distance D1 and the second distance D2.

As shown in fig. 4, when the electrical connector 100 connects the first mating connector 200 and the second mating connector 300 to be mated and electrically conducted, the first distance D1 and the second distance D2 are both reduced, the first abutting portion 24a and the second abutting portion 24b abut against each other in the vertical direction, and the third abutting portion 24c and the fourth abutting portion 24D abut against each other in the vertical direction. In this embodiment, the third distance D3 is reduced, but varies little.

As shown in fig. 3, each of the conductive terminals 2 further includes a connecting portion 26 and a limiting portion 27, the connecting portion 26 is formed by extending outward from the outer side of the upper elastic arm 232 and is used for connecting to a tape 400, the connecting portion 26 is farther from the base 231 than the bending portion R and is connected to the upper elastic arm 232, that is, the connecting portion 26 is located in front of and above the base 231 in the front-back direction. The width of the connecting material portion 26 in the front-back direction is greater than the width of the base portion 231 in the front-back direction, the limiting portion 27 extends inward from the inner side of the upper elastic arm 232, the limiting portion 27 is located in the through groove 25, the position where the limiting portion 27 is connected with the upper elastic arm 232 and the position where the connecting material portion 26 is connected with the upper elastic arm 232 are opposite to each other, and at least part of the limiting portion 27 is located in the terminal groove 11. In other embodiments, the connecting portion 26 may be formed to extend outward from the outer side of the lower elastic arm 233, and the limiting portion 27 may be formed to extend inward from the inner side of the lower elastic arm 233.

As shown in fig. 3 and 6, a distance between the upper resilient arm 232 and the corresponding second groove wall 112 in the left-right direction is set as a fourth distance D4, a dimension of the stopper 27 in the up-down direction is set as a first dimension L1, and the fourth distance D4 is not greater than the first dimension L1.

As shown in fig. 3 and 6, the material strip 400 is forced to swing back and forth in the left-right direction, when the material strip 400 is forced to drive the connecting portion 26 to deflect towards one side of the left-right direction, the connecting portion 26 and the limiting portion 27 deflect around the upper elastic arm 232, and the limiting portion 27 deflects towards the opposite side in the left-right direction and is limited by the corresponding second groove wall 112. In this embodiment, the limiting portion 27 is disconnected from the connecting arm 24, the limiting portion 27 is a cantilever structure extending from the extending arm 23 and having a free end 271, the free end 271 and the connecting arm 24 are located on the same plane, and a gap G1 is formed therebetween. When the material tape 400 is forced and deflected toward one side in the left-right direction, the free end 271 is deflected toward the other side in the left-right direction and abuts against the groove wall of the terminal groove 11 to be limited.

As shown in fig. 1 and 5, the upper end of the connecting portion 26 has a horizontally disposed breaking edge 261, and the connecting portion 26 and the strip 400 are broken at the breaking edge 261.

As shown in fig. 7 and 8, in the second embodiment of the present invention, the position-limiting portion is different from the position-limiting portion of the first embodiment, in this embodiment, the position-limiting portion is marked as 27 ', the position-limiting portion 27 ' is formed by extending from the upper elastic arm 232 and is connected to the connecting arm 24, when the tape 400 is stressed and deflects toward one side of the left-right direction, the connecting arm 24 is driven to abut against the groove wall of the terminal groove 11, so that the position-limiting portion 27 ' is limited by the groove wall of the terminal groove 11, and the upper elastic arm 232 is prevented from excessively deflecting and deforming. Other structures are the same and are not described in detail.

In summary, the electrical connector 100 of the present invention has the following advantages:

(1) the material connecting portion 26 is disposed at a position far from the base 231 and connected to the upper elastic arm 232 than the bending portion R, so as to avoid the bending portion R, so as to facilitate elastic deformation of the bending portion R under stress, and reduce the breaking force applied to the bending portion R in the left-right direction when the breaking edge 261 between the material strip 400 and the material connecting portion 26 is broken, thereby preventing the performance of the bending portion R from being damaged. The connecting portion 26 extends outward from the outer side of the upper elastic arm 232, the limiting portion 27 extends inward from the inner side of the upper elastic arm 232, the position where the limiting portion 27 is connected with the upper elastic arm 232 is opposite to the position where the connecting portion 26 is connected with the upper elastic arm 232, the limiting portion 27 is at least partially located in the terminal groove 11, and the distance between the upper elastic arm 232 and the corresponding second groove wall 112 in the left-right direction is not greater than the size of the limiting portion 27 in the up-down direction. When the material belt 400 is forced to drive the connecting portion 26 to deflect towards one side in the left-right direction, the connecting portion 26 and the limiting portion 27 deflect around the upper elastic arm 232, the position where the upper elastic arm 232 is connected with the connecting portion 26 is forced to deflect towards one side, the limiting portion 27 deflects towards the opposite side in the left-right direction and is limited by the groove wall of the terminal groove 11, the limiting portion 27 limits the deflection angle of the extension arm 23 to a certain extent, and the upper elastic arm 232 is prevented from damaging the structure of the conductive terminal 2 due to the overlarge deflection angle, and even the conductive terminal 2 is damaged or broken.

(2) The position-limiting portion 27 is a cantilever structure having a free end 271, and when the strip 400 is stressed and deflects towards one side of the left-right direction, the free end 271 deflects towards the other side of the left-right direction and abuts against the groove wall of the terminal groove 11 to be limited, so as to prevent the extending arm 23 from damaging the structure of the conductive terminal 2 due to an excessively large deflection angle, and even to prevent the conductive terminal 2 from being damaged or broken.

(3) A first distance D1 between the first abutment 24a and the second abutment 24b is less than a third distance D3 between the second abutment 24b and the fourth abutment 24D, a second distance D2 between the third abutment 24c and the fourth abutment 24D is less than a third distance D3 between the second abutment 24b and the fourth abutment 24D, when the electrical connector 100 connects the chip module 200 and the circuit board 300 to realize electrical conduction, the first distance D1 decreases until the first abutment 24a and the second abutment 24b abut each other, the second distance D2 is reduced until the third abutting portion 24c and the fourth abutting portion 24D abut against each other, so that two paths for simultaneously transmitting electrical signals are realized, and the conductive path of the connecting arm 24 is shortened, the impedance is reduced, and the transmission rate of signals is improved.

(4) The second abutting portion 24b and the fourth abutting portion 24d are vertically aligned, the second abutting portion 24b applies an upward force to the first abutting portion 24a, and the fourth abutting portion 24d applies a downward force to the third abutting portion 24c, so that the forces are balanced, and thus the conductive terminals 2 have good positive forces at the contact portions 21 and the conductive portions 22, and the chip module 200 and the circuit board 300 can be stably electrically connected.

(5) The base 231 and the middle arm 245 of the conductive terminal 2 are disposed in front-to-back correspondence, the base 231 extends outward to form the upper blocking portion 234 and the lower blocking portion 235, the middle arm 245 extends outward to form the upper blocking portion 246 and the lower blocking portion 247, the protruding portion 12 of the terminal slot 11 is accommodated between the upper blocking portion 234 and the lower blocking portion 235, and the bump 13 of the terminal slot 11 is accommodated between the upper blocking portion 246 and the lower blocking portion 247, so as to prevent the conductive terminal 2 from shaking up and down.

(6) The width of the base 231 in the front-back direction is set to be smaller than the width of the connecting part 26 in the front-back direction, so that the base 231 is more elastic, which is beneficial to the elastic deformation of the conductive terminal 2, saves the occupied space of the insulating body 1, and is beneficial to the miniaturization development of the electrical connector 100.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all technical changes that can be made by applying the present specification and the drawings are included in the scope of the present invention.

Claims

1. An electrical connector, comprising:

the insulating body is provided with at least one terminal groove which penetrates through the insulating body up and down;

at least one conductive terminal, the conductive terminal accept in the terminal groove, conductive terminal includes:

a contact part exposed upwards from the terminal groove;

the conducting connection part is exposed downwards to the terminal groove;

the extension arm comprises a base part, an upper elastic arm and a lower elastic arm, wherein the upper elastic arm is connected with the base part and the contact part, the lower elastic arm is connected with the base part and the guide part, the upper elastic arm is formed by bending and extending the base part, a bent part is formed at the joint of the upper elastic arm and the base part, and the contact part and the guide part are positioned in front of the base part;

the connecting part extends outwards from the outer side of the upper elastic arm and is used for being connected to a material belt, and the connecting part is far away from the base part than the bending part and is connected to the upper elastic arm;

the limiting part is formed by inwards extending the inner side of the upper elastic arm, the limiting part is connected with the position of the upper elastic arm and the position of the connecting part connected with the upper elastic arm are oppositely arranged, at least part of the limiting part is positioned in the terminal groove, and when the material belt is stressed and deflects towards one side of the left direction and the right direction, the limiting part deflects towards the opposite side in the left direction and the right direction and is limited by the groove wall of the terminal groove.

2. The electrical connector of claim 1, wherein: the distance between the upper elastic arm and the corresponding groove wall of the terminal groove in the left-right direction is not larger than the size of the limiting part in the up-down direction.

3. The electrical connector of claim 1, wherein: the limiting part is a cantilever structure which is formed by extending from the upper elastic arm and is provided with a free end, and when the material belt is stressed and deflects towards one side in the left-right direction, the free end deflects towards the other side in the left-right direction and abuts against the groove wall of the terminal groove to be limited.

4. The electrical connector of claim 3, wherein: the free end and the connecting arm are located on the same plane, and a gap is formed between the free end and the connecting arm.

5. The electrical connector of claim 1, wherein: the contact part, the guide connection part, the extension arm and the connecting arm enclose a through groove together, and the limiting part is positioned in the through groove.

6. The electrical connector of claim 1, wherein: the limiting part extends from the upper elastic arm to form and is connected to the connecting arm.

7. The electrical connector of claim 1, wherein: the base portion extends in the up-down direction, and the width of the base portion in the front-back direction is smaller than the width of the connecting portion in the front-back direction.

8. The electrical connector of claim 1, wherein: the material connecting part is provided with a fracture edge which is horizontally arranged.

9. The electrical connector of claim 1, wherein: the conductive terminal is provided with an upper blocking part and a lower blocking part which are formed by extending outwards from the outer side of the base part, the upper blocking part and the lower blocking part are arranged at intervals up and down, the insulating body is provided with a convex part corresponding to the terminal groove, the convex part is formed by protruding forwards from the rear side groove wall of the terminal groove, and the convex part is accommodated between the upper blocking part and the lower blocking part in the up-down direction.

10. The electrical connector of claim 1, wherein: the conductive terminal is provided with an upper stopping part and a lower stopping part which are formed by extending outwards from the outer side of the connecting arm, the upper stopping part and the lower stopping part are arranged at intervals up and down, the insulating body is provided with a lug corresponding to the terminal slot, the lug is formed by protruding backwards from the front side slot wall of the terminal slot, and the lug is contained between the upper stopping part and the lower stopping part in the up-down direction.

11. The electrical connector of claim 1, wherein: the connecting arm comprises a first upper arm, a second upper arm, a first lower arm, a second lower arm and a middle arm, wherein the first upper arm is formed by extending downwards and backwards from the contact part, the second upper arm is formed by extending forwards from the first upper arm, the first lower arm is formed by extending upwards and backwards from the guide part, the second lower arm is formed by extending forwards from the first lower arm, the middle arm is upwards connected with the second upper arm and downwards connected with the second lower arm, and the middle arm and the base part are oppositely arranged in the front-back direction.

12. The electrical connector of claim 11, wherein: the conductive terminal is provided with an upper stop part and a lower stop part which are formed by extending outwards from the outer side of the middle arm, the upper stop part and the lower stop part are arranged at intervals up and down, the insulating body is provided with a lug corresponding to the terminal slot, the lug is formed by protruding forwards from the front side slot wall of the terminal slot, and the lug is accommodated between the upper stop part and the lower stop part in the up-down direction.

13. The electrical connector of claim 11, wherein: the first upper arm is provided with a first abutting portion at the outer side thereof, the second upper arm is provided with a second abutting portion at the outer side thereof, the first lower arm is provided with a third abutting portion at the outer side thereof, the second lower arm is provided with a fourth abutting portion at the outer side thereof, the distance between the first abutting portion and the second abutting portion is a first distance, the distance between the third abutting portion and the fourth abutting portion is a second distance, the distance between the inner side of the second upper arm at a position corresponding to the second abutting portion and the inner side of the second lower arm at a position corresponding to the fourth abutting portion is defined as a third distance, the third distance is greater than the first distance and the second distance, when the electric connector connects a first butt piece and a second butt piece to realize electric conduction, the first distance and the second distance are both reduced, the first abutting portion and the second abutting portion abut against each other in the vertical direction, and the third abutting portion and the fourth abutting portion abut against each other in the vertical direction.

14. The electrical connector of claim 13, wherein: the second abutting part and the fourth abutting part are arranged in an up-and-down alignment mode.

15. The electrical connector of claim 11, wherein: the middle arm is positioned in front of the contact part and the guide part.

16. The electrical connector of claim 1, wherein: the conductive terminals are integrated sheet terminals.