CN113783011B

CN113783011B - Electric connector

Info

Publication number: CN113783011B
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: 2023-07-21
Anticipated expiration: 2041-09-02
Also published as: CN113783011A

Abstract

The invention discloses an electric connector, comprising: the insulation body is provided with a terminal groove penetrating up and down; the conductive terminal is accommodated in the terminal groove, and the conductive terminal includes: a contact portion; a guide connection part; the extension arm and the connecting arm are connected with the contact part and the guide 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 facing each other are set as inner sides, and one side of the extension arm and one side of the connecting arm facing away from each other are set as outer sides; the extension arm comprises a base part, an upper elastic arm connecting the base part and the contact part, and a lower elastic arm connecting the base part and the guide connection part, and a bending part is formed at the joint of the upper elastic arm and the base part; the connecting part is formed by extending outwards from the outer side of the upper elastic arm and is far away from the base part compared with the bending part; and the limiting part is formed by extending inwards from the inner side of the upper elastic arm, the limiting part and the connecting part are oppositely arranged relative to the upper elastic arm, the limiting part is positioned in the terminal groove, and when the connecting part is stressed to deflect towards one side of 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

Electric connector

[ field of technology ]

The present invention relates to an electrical connector, and more particularly, to an electrical connector capable of transmitting electrical signals in two paths simultaneously.

[ background Art ]

The present invention relates to an electrical connector, and more particularly to an electrical connector with a plurality of conductive terminals disposed in a plurality of terminal slots of the insulating body, wherein each conductive terminal includes a base, an upper spring arm, a lower spring arm and a connecting arm, the base extends in an up-down direction and is disposed in the terminal slot, the upper spring arm extends upward and forward from the base, the upper spring arm protrudes upward to form a contact portion for electrically contacting with a first mating member, the lower spring arm protrudes downward and forward from the base to form a conductive portion for electrically contacting with a second mating member, the connecting arm connects the upper spring arm and the lower spring arm in an up-down direction, and the connecting arm is disposed in front of the base, and the base, the upper spring arm, the connecting arm and the lower spring arm are connected end to end in sequence. The extension arm and the connecting arm are respectively defined as an inner side and an outer side, wherein the sides of the extension arm and the connecting arm facing each other are respectively defined as an outer side, a bending part is formed at the joint of the upper elastic arm and the base part, and a material part is formed by upwards 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 to deform, so that the bending part is stressed greatly, but the connecting part extends upwards from the bending part to form, so that the structural strength of the bending part is enhanced, the bending part is not easy to elastically deform, the stress deformation of the upper elastic arm is not facilitated, and in addition, when the material belt is broken, the bending part is stressed by breaking force in the left-right direction, and the performance of the bending part is easily damaged.

In addition, when 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, and when the material belt swings in the left-right direction perpendicular to the front-back direction to break the connection part between the material belt and the material belt, when the material belt is forced to drive the material belt to deflect towards one side in the left-right direction, the position where the upper elastic arm is connected with the material belt is also stressed to 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, so that the upper elastic arm is easy to deform to break the structure of the conductive terminal, and even the conductive terminal is broken or broken.

Therefore, there is a need to design a new electrical connector to overcome the above-mentioned problems.

[ invention ]

In view of the problems faced by the background art, an object of the present invention is to provide an electrical connector capable of preventing an excessive deformation of a conductive terminal when a tape is broken.

In order to achieve the above purpose, the invention adopts the following technical means: an electrical connector, comprising: the insulation body is provided with at least one terminal groove penetrating up and down; at least one conductive terminal, conductive terminal accept in the terminal groove, conductive terminal includes: a contact part exposed upwards from the terminal groove; a guide connection part which is exposed downwards from the terminal groove; an extension arm and a connection arm respectively extending between the contact portion and the connection portion and connecting the contact portion and the connection portion, wherein the connection arm is located in front of the extension arm, the sides of the extension arm and the connection arm facing each other are defined as inner sides, the sides facing away from each other are defined as outer sides, the extension arm comprises a base, an upper elastic arm connecting the base and the contact portion, and a lower elastic arm connecting the base and the connection portion, the upper elastic arm is formed by bending and extending from the base, a bending portion is formed at the joint of the upper elastic arm and the connection portion, and the contact portion and the connection portion are located in front of the base; a connecting part extending outwards from the outer side of the upper elastic arm and used for being connected to a material belt, wherein 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 extending inwards from the inner side of the upper elastic arm, the position where the limiting part is connected with the upper elastic arm is opposite to the position where the connecting part is connected with the upper elastic arm, and the limiting part is at least partially positioned in the terminal groove.

Further, a distance between the upper elastic arm and the groove wall of the corresponding terminal groove in the left-right direction is not greater than a dimension of the limit portion in the up-down direction.

Further, the limiting part is a cantilever structure with a free end, wherein the cantilever structure is formed by extending from the upper elastic arm, 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.

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

Further, the contact portion, the guide connection portion, the extension arm and the connection arm together enclose a through groove, and the limiting portion is located in the through groove.

Further, the limit 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 connecting part is provided with a breaking edge which is horizontally arranged.

Further, the conductive terminal has an upper blocking portion and a lower blocking portion extending outwards from the outer side of the base portion, the upper blocking portion and the lower blocking portion are arranged at an upper-lower interval, the insulating body is provided with a protruding portion corresponding to the terminal groove, the protruding portion protrudes forwards from a rear groove wall of the terminal groove, and the protruding portion is accommodated between the upper blocking portion and the lower blocking portion in the up-down direction.

Further, the conductive terminal has an upper stop portion and a lower stop portion extending outwards from the outer side of the connecting arm, the upper stop portion and the lower stop portion are arranged at an upper-lower interval, the insulating body is provided with a bump corresponding to the terminal groove, the bump protrudes backwards from the front side groove wall of the terminal groove, and the bump is accommodated between the upper stop portion and the lower stop portion in the up-down direction.

Further, 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 extends downwards and backwards from the contact part, the second upper arm extends forwards from the first upper arm, the first lower arm extends upwards and backwards from the guide part, the second lower arm extends 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-rear direction.

Further, the conductive terminal has an upper stop portion and a lower stop portion extending outwards from the outer side of the middle arm, the upper stop portion and the lower stop portion are arranged at an upper-lower interval, the insulating body is provided with a bump corresponding to the terminal groove, the bump protrudes forwards from the front side groove wall of the terminal groove, and the bump 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, a distance between the first abutting portion and the second abutting portion is set to a first distance, a distance between the third abutting portion and the fourth abutting portion is set to a second distance, a 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 to a third distance, the third distance is larger than the first distance and the second distance, when the electric connector is connected to a first abutting piece and a second abutting piece to achieve electric conduction, the first distance and the second distance are both reduced, the first abutting portion and the second abutting portion are mutually abutted with each other in the upper and lower directions, and the third abutting portion and the fourth abutting portion are mutually abutted in the upper and lower directions.

Further, the second abutting portion and the fourth abutting portion are disposed in up-down alignment.

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 part is arranged at a position far away from the base part and connected with the upper elastic arm than the bending part, so that the bending part is prevented from being arranged, the bending part is convenient to be stressed to elastically deform, and the breaking force of the bending part in the left-right direction can be reduced when the breaking edge between the material belt and the connecting part is broken, so that the performance of the bending part is prevented from being damaged. The 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 connecting part is driven to deflect towards one side in the left-right direction by the force of the material belt, the connecting part and the limiting part deflect with the upper elastic arm as a center, the position of the upper elastic arm connected with the connecting part deflects towards one side by the force, the limiting part deflects towards the opposite side in the left-right direction 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 extent, and the structure of the conductive terminal is prevented from being damaged due to overlarge deflection angle, and even the conductive terminal is damaged or broken.

[ description of the drawings ]

FIG. 1 is an exploded perspective view of a first embodiment of an electrical connector according to the present invention, 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, taken along line A-A, prior to mating with the first mating member and the second mating member;

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

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

FIG. 6 is a schematic view of the electrical connector of FIG. 5 during a tape break;

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

fig. 8 is a schematic diagram of the conductive terminal of fig. 7 after being assembled to the insulative housing and during the tape breaking process.

Reference numerals of the specific embodiments illustrate:

[ detailed description ] of the invention

For a better understanding of the invention with objects, structures, features, and effects, the invention will be described further with reference to the drawings and to the detailed description.

For convenience in describing a specific structure of the electrical connector 100 of the present invention, a front-back direction, a left-right direction and an up-down direction are defined, 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 configured to be electrically connected to a first mating member 200 upwards and to be electrically connected to a second mating member 300 downwards. In this embodiment, the first docking member 200 is a chip, the second docking member 300 is a circuit board, and according to actual requirements, the first docking member 200 and the second docking member 300 may be other components.

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 needs, or may be a terminal structure formed by punching and bending.

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

As shown in fig. 2 and 3, each of the terminal grooves 11 is provided with two first groove walls 111 and two second groove walls 112, the two first groove walls 111 are disposed opposite to each other in the front-rear direction, the two second groove walls 112 are disposed opposite to each other in the left-right direction, the convex portions 12 are formed by protruding forward from the corresponding first groove walls 111 on the rear side of the terminal groove 11, the convex portions 13 are formed by protruding backward from the corresponding first groove walls 111 on the front side of the terminal groove 11, the convex portions 13 are disposed in front of the convex portions 12 and disposed in front-rear correspondence with each other, and in this embodiment, the convex portions 12 and the convex portions 13 are disposed at the middle positions 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 conductive portion 22, an extension arm 23, a connection arm 24, and a through slot 25, in the up-down direction, the contact portion 21 is electrically connected to the first docking member 200, the conductive portion 22 is electrically connected to the second docking member 300, the extension arm 23 and the connection arm 24 are respectively formed by bending and extending between the contact portion 21 and the conductive portion 22, and are connected to the contact portion 21 and the conductive portion 22, the connection arm 24 is located in front of the extension arm 23 in the front-back direction, the contact portion 21, the conductive portion 22, the extension arm 23, and the connection arm 24 together enclose the through slot 25, one sides of the extension arm 23 and the connection arm 24 facing each other are defined as inner sides, and one sides facing away from each other are defined as outer sides. The contact portion 21 and the guide portion 22 are both in an arc shape protruding 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 in the up-down direction, the upper elastic arm 232 extends obliquely 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 obliquely 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 bending portion R is formed at a connection portion between the base 231 and the upper elastic arm 232 and a connection portion between the base 231 and the lower elastic arm 233, and the bending portion R is in an arc shape protruding outwards.

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, wherein the upper blocking portion 234 and the lower blocking portion 235 are respectively formed by extending outwards from the outer side of the base 231, that is, the upper blocking portion 234 and the lower blocking portion 235 are respectively formed by extending backwards from the rear side of the base 231, the upper blocking portion 234 is located above the lower blocking portion 235 and is disposed at an upper-lower interval therebetween, the first groove 236 is formed between the upper blocking portion 234 and the lower blocking portion 235 in the upper-lower direction, the first groove 236 is configured to receive the protruding portion 12, such that the upper blocking portion 234 is blocked by the protruding portion 12 downwards, and the lower blocking portion 235 is blocked by the protruding portion 12 upwards.

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 a middle arm 245, wherein the first upper arm 241 is formed by extending downward and backward obliquely from the contact portion 21, the second upper arm 242 is formed by extending forward from the first upper arm 241, the first lower arm 243 is formed by extending upward and backward obliquely from the guide portion 22, the second lower arm 244 is formed by extending forward from the first lower arm 243, the middle arm 245 extends in the up-down direction, the middle arm 245 is connected upward to the second upper arm 242 and connected downward to the second lower arm 244, the middle arm 245 is disposed opposite forward and backward from the base portion 231, the middle arm 245 is disposed in front of the contact portion 21 and the guide portion 22 in the forward and backward direction, and the connecting arms 24 are disposed symmetrically upward and downward with respect to the middle arm 245. Before the electrical connector 100 is mated with the first mating member 200 and the second mating member 300, the intermediate arm 245 extends forward beyond the contact portion 21 and the guide portion 22. In this embodiment, the second upper arm 242 extends obliquely forward and upward from the first upper arm 241, the second lower arm 244 extends obliquely 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 connected end to end in sequence.

As shown in fig. 3, each of the connecting arms 24 further includes an upper stop portion 246, a lower stop portion 247, and a second recess 248, wherein the upper stop portion 246 and the lower stop portion 247 are formed by extending outwards from the outer side of the connecting arm 24, the upper stop portion 246 is located above the lower stop portion 247 and is disposed at an upper-lower interval, the second recess 248 is formed between the upper stop portion 246 and the lower stop portion 247 in the upper-lower direction, and the second recess 248 is configured to receive the bump 13, such that the upper stop portion 246 is stopped by the bump 13 downwards, and the lower stop portion 247 is stopped by the bump 13 upwards. In this embodiment, the upper stop portion 246 and the lower stop portion 247 are formed to extend outwardly from the outer side of the intermediate arm 245, respectively, i.e., the upper stop portion 246 and the lower stop portion 247 are formed to extend forwardly from the front side of the intermediate arm 245, respectively. In other embodiments, the upper stop portion 246 and the lower stop portion 247 may be formed to extend outwardly from the connecting arm 24 at other positions than the middle arm 245, respectively, so 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 abutment 24a on the outer side thereof, the second upper arm 242 has a second abutment 24b on the outer side thereof, the first lower arm 243 has a third abutment 24c on the outer side thereof, the second lower arm 244 has a fourth abutment 24d on the outer side thereof, and the second abutment 24b is vertically aligned with the fourth abutment 24 d. The distance between the first abutting portion 24a and the second abutting portion 24b is set to be a first distance D1, the distance between the third abutting portion 24c and the fourth abutting portion 24D is set to be a second distance D2, the distance between the position corresponding to the second abutting portion 24b on the inner side of the second upper arm 242 and the position corresponding to the fourth abutting portion 24D on the inner side of the second lower arm 244 is defined to be a third distance D3, and the third distance D3 is larger than the first distance D1 and the second distance D2.

As shown in fig. 4, when the electrical connector 100 is connected to the first mating part 200 and the second mating part 300 to be mated, 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 up-down direction, and the third abutting portion 24c and the fourth abutting portion 24D abut against each other in the up-down direction. In the present embodiment, the third distance D3 is reduced but the variation is small.

As shown in fig. 3, each conductive terminal 2 further includes a connecting portion 26 and a limiting portion 27, wherein the connecting portion 26 extends outward from the outer side of the upper elastic arm 232 and is configured to be connected to a material belt 400, and the connecting portion 26 is connected to the upper elastic arm 232 farther from the base 231 than the bending portion R, i.e. the connecting portion 26 is located in front of and above the base 231 in the front-rear direction. The width of the connecting portion 26 in the front-rear direction is greater than the width of the base 231 in the front-rear 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 connects the upper elastic arm 232 is opposite to the position where the connecting portion 26 connects the upper elastic arm 232, and the limiting portion 27 is located at least partially in the terminal groove 11. In other embodiments, the connecting portion 26 may extend outward from the outer side of the lower elastic arm 233, and the limiting portion 27 may extend inward from the inner side of the lower elastic arm 233.

As shown in fig. 3 and 6, a distance between the upper elastic arm 232 and the corresponding second groove wall 112 in the left-right direction is set to a fourth distance D4, a dimension of the stopper 27 in the up-down direction is set to 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 belt 400 is forced to swing back and forth in the left-right direction, when the material belt 400 is forced to drive the material connecting portion 26 to deflect towards one side of the left-right direction, the material 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 extension 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 provided therebetween. When the material tape 400 is forced and deflected to one side in the left-right direction, the free end 271 is deflected to the other side in the left-right direction and is restrained against the groove wall of the terminal groove 11.

As shown in fig. 1 and 5, the upper end of the connecting portion 26 has a breaking edge 261 horizontally disposed, and the connecting portion 26 and the material 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 limiting portion is different from the limiting portion of the first embodiment, in this embodiment, the limiting portion is denoted by 27', the limiting portion 27' is formed by extending from the upper elastic arm 232 and is connected to the connecting arm 24, and when the material belt 400 is stressed and deflected towards 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 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 will not be described again.

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

(1) The connecting portion 26 is disposed at a position far away from the base 231 from the upper elastic arm 232 than the bending portion R, so as to avoid the bending portion R, and facilitate elastic deformation of the bending portion R due to stress, and reduce the breaking force of the bending portion R in the left-right direction when the breaking edge 261 between the material strip 400 and the connecting portion 26 is broken, so as to prevent the breaking of the performance of the bending portion R. The connecting portion 26 extends outwards from the outer side of the upper elastic arm 232, the limiting portion 27 extends inwards 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 dimension of the limiting portion 27 in the up-down direction. When the material belt 400 is forced to drive the material connecting portion 26 to deflect towards one side in the left-right direction, the material connecting portion 26 and the limiting portion 27 deflect with the upper elastic arm 232 as a center, the position where the upper elastic arm 232 is connected with the material 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 limiting portion 27 has a cantilever structure with a free end 271, and when the material strip 400 is stressed and deflected 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 extension arm 23 from damaging the structure of the conductive terminal 2 due to overlarge deflection angle, and even damage or break the conductive terminal 2.

(3) When the first distance D1 between the first abutting portion 24a and the second abutting portion 24b is smaller than the third distance D3 between the second abutting portion 24b and the fourth abutting portion 24D, the second distance D2 between the third abutting portion 24c and the fourth abutting portion 24D is smaller than the third distance D3 between the second abutting portion 24b and the fourth abutting portion 24D, and when the electrical connector 100 is connected to the chip module 200 and the circuit board 300 to achieve electrical conduction, the first distance D1 is reduced to the point that the first abutting portion 24a and the second abutting portion 24b abut against each other, the second distance D2 is reduced to the point that the third abutting portion 24c and the fourth abutting portion 24D abut against each other, two paths are simultaneously transmitted, the conductive path of the connecting arm 24 is shortened, the impedance is reduced, and the signal transmission rate 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, the fourth abutting portion 24d applies a downward force to the third abutting portion 24c, and the forces are balanced, so that the conductive terminals 2 have a better forward force at the contact portion 21 and the conductive portion 22, and further the conductive terminals 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-rear correspondence, the base 231 extends outwards to form the upper stop 234 and the lower stop 235, the middle arm 245 extends outwards to form the upper stop 246 and the lower stop 247, the protruding portion 12 of the terminal groove 11 is accommodated between the upper stop 234 and the lower stop 235, and the protruding portion 13 of the terminal groove 11 is accommodated between the upper stop 246 and the lower stop 247, so as to prevent the conductive terminal 2 from shaking in the vertical direction.

(6) The width of the base 231 in the front-rear direction is set smaller than the width of the connecting portion 26 in the front-rear direction, so that the base 231 has increased elasticity, 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 electric connector 100.

The above detailed description is merely illustrative of the preferred embodiments of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the invention.

Claims

1. An electrical connector, comprising:

the insulation body is provided with at least one terminal groove penetrating up and down;

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

a contact part exposed upwards from the terminal groove;

a guide connection part which is exposed downwards from the terminal groove;

an extension arm and a connection arm respectively extending between the contact portion and the connection portion and connecting the contact portion and the connection portion, wherein the connection arm is located in front of the extension arm, the sides of the extension arm and the connection arm facing each other are defined as inner sides, the sides facing away from each other are defined as outer sides, the extension arm comprises a base, an upper elastic arm connecting the base and the contact portion, and a lower elastic arm connecting the base and the connection portion, the upper elastic arm is formed by bending and extending from the base, a bending portion is formed at the joint of the upper elastic arm and the connection portion, and the contact portion and the connection portion are located in front of the base;

a connecting part extending outwards from the outer side of the upper elastic arm and used for being connected to a material belt, wherein 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 extending inwards from the inner side of the upper elastic arm, the position where the limiting part is connected with the upper elastic arm is opposite to the position where the connecting part is connected with the upper elastic arm, and the limiting part is at least partially positioned in the terminal groove.

2. The electrical connector of claim 1, wherein: the distance between the upper elastic arm and the corresponding slot wall of the terminal slot in the left-right direction is not greater than the dimension 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 positioned on the same plane, and a gap is reserved 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 jointly enclose a through groove, 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 and is connected to the connecting arm.

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

8. The electrical connector of claim 1, wherein: the connecting part is provided with a breaking 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 an upper-lower interval, the insulating body is provided with a convex part corresponding to the terminal groove, the convex part protrudes 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 upper-lower direction.

10. The electrical connector of claim 1, 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 connecting arm, the upper stop part and the lower stop part are arranged at an upper-lower interval, the insulating body is provided with a bump corresponding to the terminal groove, the bump is formed by protruding backwards from the front side groove wall of the terminal groove, and the bump is accommodated between the upper stop part and the lower stop part in the vertical 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 extends downwards and backwards from the contact part, the second upper arm extends forwards from the first upper arm, the first lower arm extends upwards and backwards from the guide part, the second lower arm extends 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-rear 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 an upper-lower interval, the insulating body is provided with a bump corresponding to the terminal groove, the bump is formed by protruding forwards from the front side groove wall of the terminal groove, and the bump is accommodated between the upper stop part and the lower stop part in the vertical direction.

13. The electrical connector of claim 11, wherein: 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, a distance between the first abutting portion and the second abutting portion is set to be a first distance, a distance between the third abutting portion and the fourth abutting portion is set to be a second distance, a 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 to be a third distance, the third distance is larger than the first distance and the second distance, when the electric connector is connected with a first abutting piece and a second abutting piece to achieve electric conduction, the first distance and the second distance are both reduced, the first abutting portion and the second abutting portion are mutually abutted with each other in the upper and lower directions, and the third abutting portion and the fourth abutting portion are mutually abutted in the upper and lower directions.

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

16. The electrical connector of claim 1, wherein: the conductive terminal is an integrated sheet terminal.