CN111106472B

CN111106472B - Electrical connector

Info

Publication number: CN111106472B
Application number: CN201911163997.1A
Authority: CN
Inventors: 周志勇; 支华辉
Original assignee: Lotes Co Ltd
Current assignee: Lotes Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2021-10-26
Anticipated expiration: 2039-11-25
Also published as: CN111106472A

Abstract

The invention discloses an electric connector, comprising: the chip module comprises an insulating body, a chip module and a chip module, wherein the insulating body is provided with an accommodating cavity for accommodating the chip module and side walls surrounding the accommodating cavity, and the side walls on the left side and the right side of the accommodating cavity are respectively provided with a receding groove which is downwards concave from the top surface of the side walls; a plurality of terminals arranged on the insulating body; the lid, insulator is located to the lid, the lid includes the boss and encloses the base plate of locating the boss, the boss top surface is higher than the base plate, the boss left and right sides face is the indent respectively and is established a first recess, the lid is equipped with a bulge respectively in the boss left and right sides, the bulge is established from the base plate bottom surface downward projection, two bulge one-to-ones are acceptd in two grooves of stepping down, the lid is established in the position of the corresponding bulge of base plate top surface is the indent downwards and is formed a second recess, the second recess extends to and corresponds the groove of stepping down directly over, the boss communicates on the first recess of one side and the corresponding second recess and forms an accepting groove jointly. The electric connector is convenient for fingers to take the cover body on the insulating body, and the integral height of the electric connector cannot be increased.

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 with a cover body that is easy to be taken by fingers.

[ background of the invention ]

An existing electrical connector is used for electrically connecting a chip module, and includes an insulating body, a plurality of terminals disposed on the insulating body, and a cover body covering the insulating body, wherein the insulating body is provided with an accommodating cavity for accommodating the chip module, when the chip module is not mounted to the accommodating cavity of the insulating body, the cover body covers the insulating body to protect the terminals and prevent dust, and when the chip module is to be mounted, the cover body needs to be taken away from the insulating body.

In order to facilitate the hand to take the cover body above the insulation body, the cover body is provided with a boss and is enclosed on a base plate of the boss, the top surface of the boss is higher than the base plate, a groove and two grooves are respectively arranged on the opposite side surfaces of the boss inwards and are used for inserting two fingers of a user, so that the cover body is taken from the top of the insulation body.

In order to accommodate the fingers of the user conveniently, the groove needs to have a certain height, the boss is a groove with a certain height, and the height of the boss is also larger than that of the groove, which can increase the overall height of the electric connector.

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

[ summary of the invention ]

The invention aims to provide an electric connector which is convenient for fingers to take a cover body on an insulating body and can ensure that the whole height is not increased.

In order to achieve the purpose, the invention adopts the following technical scheme:

an electrical connector for electrically connecting a chip module, comprising: the chip module comprises an insulating body, a chip module and a chip module, wherein the insulating body is provided with an accommodating cavity for accommodating the chip module and a side wall surrounding the accommodating cavity, the side wall is provided with a yielding groove which is respectively arranged at the left side and the right side of the accommodating cavity in a downward concave mode from the top surface of the side wall, the yielding groove penetrates through the side wall from left to right, and the yielding groove is used for extracting the chip module positioned in the accommodating cavity; the terminals are arranged on the insulating body and used for electrically connecting the chip module; a cover body covering the insulation body, the cover body comprises a boss and a base plate surrounding the boss, the top surface of the boss is higher than the base plate, the left side surface and the right side surface of the boss are respectively provided with a first groove in an inward concave manner, the cover body is respectively provided with a convex part at the left side and the right side of the boss, the convex parts are arranged in a downward convex manner from the bottom surface of the base plate, the two convex parts are accommodated in the two abdicating grooves in a one-to-one correspondence manner, each convex part inwards extends into the accommodating cavity in the left direction and the right direction, the cover body is arranged in a downward concave manner at the position of the top surface of the base plate corresponding to the convex parts to form a second groove, the second groove extends to the position right above the abdicating groove in the left direction and the right direction, the first groove at the same side of the boss is communicated with the corresponding second groove in the left direction and the right direction, and the first groove and the corresponding second groove form an accommodating groove together, the accommodating groove is used for providing a grabbing position for extracting the cover body from the insulating body.

Furthermore, each terminal is provided with a contact part, the contact part protrudes upwards into the accommodating cavity to be electrically connected with the chip module, and the bottom surface of the protruding part is higher than the contact part.

Further, the bottom surface of the second groove is lower than the top surface of the side wall.

Further, in the up-down direction, the thickness of the projection at a position directly below the first groove is smaller than the thickness of the substrate.

Further, the side wall has and is located two long walls of acceping the chamber left and right sides and is located two short walls of acceping both sides around the chamber, two long wall and two the short wall encloses and establishes acceping the chamber, the groove of stepping down certainly the top surface of long wall sets up the formation to the undercut, it has a first central line along left right direction extension to accept the chamber, first central line passes the groove of stepping down.

Further, each of the avoiding grooves is symmetrically arranged in front and back of the first center line.

Furthermore, each of the terminals includes an elastic arm extending along the front-rear direction, the elastic arm is provided with a contact portion protruding into the accommodating cavity for electrically connecting the chip module, the plurality of terminals are located at the front side and the rear side of the first center line, and the elastic arm of the terminal at the front side of the first center line and the elastic arm of the terminal at the rear side thereof extend toward each other.

Further, the boss comprises a top wall and a side wall formed by respectively extending downwards from the left side and the right side of the top wall, the side wall is connected with the base plate, the top wall is higher than the base plate, and the first groove penetrates through the corresponding side wall inwards and downwards.

Furthermore, the lid has certainly both ends are upwards protruding respectively and are established a convex part that forms about the top surface of boss, two the convex part respectively with two the first recess corresponds the setting from top to bottom, first recess is upwards sunken to be established to corresponding the convex part, just the top surface of first recess is higher than the top surface of boss.

Furthermore, a mark part is arranged on the top surface of the convex part and used for marking the position of the first groove.

Further, the insulation body is provided with an inclined plane at the bottom of the abdicating groove, the inclined plane is inclined downwards from inside to outside, the inclined plane is provided with an inner edge, and the inner edge inwards exceeds the side wall surface in the left-right direction to the inner surface of the accommodating cavity.

Furthermore, the inclined surface is provided with an outer edge, and the outer edge is closer to the accommodating cavity than the outer surface of the side wall departing from the accommodating cavity.

Furthermore, the insulating body is provided with a bottom wall located at the bottom of the accommodating cavity, the side wall protrudes upwards from the top surface of the bottom wall, the insulating body is further provided with a bearing wall which is arranged around the plurality of terminals and protrudes upwards from the top surface of the bottom wall, the bearing wall is connected with the inner surface of the side wall facing the accommodating cavity, the terminals are provided with contact parts protruding upwards from the top surface of the bottom wall and used for contacting the chip modules, the bearing wall is used for supporting the chip modules, and the bearing wall is provided with a plurality of first material taking grooves in a downward concave mode.

Furthermore, the first material drawing groove penetrates through the bearing wall inwards and is communicated with the bearing cavity.

Furthermore, a plurality of positioning blocks are formed by protruding the side wall towards the accommodating cavity, the positioning blocks are used for positioning the periphery of the chip module, the positioning blocks are connected with the accommodating wall downwards, the positioning blocks are provided with guiding inclined planes for guiding the chip module to be accommodated in the accommodating cavity downwards, a second material taking groove is formed in the accommodating wall in a downward concave mode on the opposite side, away from the side wall, of each positioning block, and the second material taking grooves do not penetrate through the accommodating wall inwards.

Further, the insulator in the bottom of the groove of stepping down is equipped with an inclined plane, the inclined plane sets up from inside to outside downward sloping, certainly the inclined plane is established downwards to cave to form a plurality of third and is drawn the silo.

Furthermore, the cover body is provided with two buckling parts which extend downwards on the left side and the right side of the boss respectively, the front side and the rear side of each abdicating groove of the insulating body are respectively provided with a buckling groove, the buckling grooves are formed by the concave arrangement of the outer surface of the insulating body along the left and the right directions, and the buckling parts are correspondingly buckled in the buckling grooves.

Furthermore, the insulation body is provided with a fool-proof block protruding outwards respectively on the front side and the rear side of the accommodating cavity, the cover body is provided with a side plate extending downwards respectively on the front side and the rear side of the boss, each side plate is provided with a notch penetrating downwards, and the notch accommodates the fool-proof block.

Furthermore, the accommodating cavity is provided with a second center line extending along the front-back direction, the fool-proof blocks are offset in the left-right direction relative to the second center line, and the fool-proof blocks on the front side and the back side of the accommodating cavity are located on the same side of the second center line.

Further, the protruding portion extends to the outer edge of the substrate, which faces away from the boss, in the left-right direction, and the second groove penetrates through the corresponding protruding portion in the left-right direction.

Compared with the prior art, the electric connector is provided with the first groove in a concave manner on the side surface of the boss, the protruding part protruding downwards from the bottom surface of the substrate is accommodated in the abdicating groove on the insulating body, the second groove is formed in a concave manner at the position, corresponding to the protruding part, of the top surface of the substrate, so that the second groove can have a larger size in the vertical direction, the first groove and the second groove are communicated with each other to form the accommodating groove convenient for accommodating fingers, the grabbing space for taking the cover body from the upper side of the insulating body is enlarged, and the overall height of the electric connector is not increased. Meanwhile, the convex part is accommodated in the abdicating groove on the insulating body, the second groove extends to the position right above the abdicating groove in the left-right direction, so that the second groove has larger size in the left-right direction, the fingers of a user can be conveniently inserted into the first groove from the second groove from the outside to the inside, the comfort feeling of the user in use is improved, the second groove plays a role of guiding the insertion direction of the fingers of the user, and is visible at the same time, the abdicating groove plays a role of abdicating the convex part besides the role of extracting the chip module positioned in the accommodating cavity, the original spatial position of the abdicating groove of the insulating body is fully utilized, the requirement that the cover body on the insulating body is convenient for the fingers to take is met, and the requirement that the overall height of the electric connector cannot be increased is ensured, additional abdicating space is not additionally arranged on the insulation body, so that the production steps are reduced, and the production efficiency is improved.

[ description of the drawings ]

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

FIG. 2 is a perspective assembly view of FIG. 1;

FIG. 3 is a partial cross-sectional view taken in the direction A-A of FIG. 2;

FIG. 4 is a partial side view of FIG. 2;

fig. 5 is a perspective view of the insulative housing and the terminal of fig. 1;

FIG. 6 is an enlarged view of portion B of FIG. 5;

FIG. 7 is an enlarged view of portion C of FIG. 5;

FIG. 8 is a top view of FIG. 5;

FIG. 9 is an enlarged view of portion D of FIG. 8;

fig. 10 is a perspective view of the insulating body in fig. 5 after receiving a chip module;

fig. 11 is a perspective view of the insulating body and the terminal of the second embodiment of the electrical connector of the present invention;

fig. 12 is an enlarged view of a portion E in fig. 11.

FIG. 13 is a partial cross-sectional view taken in the direction F-F of FIG. 11;

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

bottom wall 11 side wall 12 of insulating body 1 of electric connector 100

Long wall 121 short wall 122 snap groove 123 fool-proof block 124

The through hole 1241 receives a first center line P1 and a second center line P2 of the cavity 13

The inner edge 1411 and the outer edge 1412 of the inclined surface 141 of the relief groove 14

The front edge 1413 and the back edge 1414 are connected to the first slot wall 143 of the surface 142

The second channel wall 144 receives the short wall 152 of the long wall 151 of the wall 15

First drawing groove 16, second drawing groove 17, third drawing groove 18 and positioning block 19

Contact portion 211 of terminal 2 elastic arm 21 with guiding slope 191

Top wall 311 side wall 312 of cover 3 boss 31

First groove 313 substrate 32 projection 33 second groove 34

Protrusion 35 marks part 351, and side plate 37 of latch part 36

Notch 38 chip module 200 left-right direction X front-back direction Y

Up and down direction Z

[ 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.

As shown in fig. 1 to 10, in a first embodiment of the electrical connector of the present invention, the electrical connector 100 includes an insulating housing 1, a plurality of terminals 2 disposed in the insulating housing 1, and a cover 3 covering the insulating housing 1. The electrical connector 100 is electrically connected to a chip module 200.

As shown in fig. 1, 5 and 8, the insulating housing 1 includes a bottom wall 11, a side wall 12 formed by extending upward from a top surface of the bottom wall 11, and a receiving cavity 13 disposed above the bottom wall 11 for receiving the chip module 200, wherein the receiving cavity 13 is formed by enclosing the bottom wall 11 and the side wall 12, that is, the side wall 12 is enclosed around the receiving cavity 13, and the side wall 12 extends toward an inner surface of the receiving cavity 13 in a vertical plane. The insulating body 1 further comprises a receiving wall 15 formed by protruding upwards from the top surface of the bottom wall 11, the receiving wall 15 is arranged on the inner side of the side wall 12 and connected with the inner surface of the side wall 12, the top surface of the receiving wall 15 is lower than the top surface of the side wall 12, the top surface of the receiving wall 15 is used for receiving the chip module 200, and the top surface of the receiving wall 15 is arranged in a horizontal plane.

As shown in fig. 5, the side wall 12 is a rectangular parallelepiped frame, and the side wall 12 includes two long walls 121 located on the left and right sides of the accommodating cavity 13 and two short walls 122 located on the front and rear sides of the accommodating cavity 13, that is, the two long walls 121, the two short walls 122 and the bottom wall 11 enclose the accommodating cavity 13.

As shown in fig. 5 and 8, the receiving cavity 13 has a first central line P1 extending along the left-right direction X, the insulating housing 1 is disposed symmetrically with respect to the first central line P1, and the first central line P1 passes through the middle point of the two long walls 121. The receiving cavity 13 has a second center line P2 extending along the front-back direction Y, the insulation body 1 is disposed symmetrically about the second center line P2, and the first center line P1 passes through the middle point of the two short walls 122.

As shown in fig. 5, 6 and 8, two of the long walls 121 are respectively provided with an abdicating groove 14 recessed downwards from the top surface thereof, and the two abdicating grooves 14 are oppositely arranged along the left-right direction X. The receding groove 14 penetrates through the long wall 121 along the left-right direction X, and the receding groove 14 is used for extracting the chip module 200 located in the accommodating cavity 13. The first centerline P1 passes through the abdicating groove 14, and each abdicating groove 14 is symmetrically arranged in front and back with respect to the first centerline P1.

As shown in fig. 4, 6 and 9, the bottom of the receding groove 14 of the insulating housing 1 is provided with an inclined surface 141, the inclined surface 141 is inclined downward from the inside to the outside, and the inclined surface 141 expands from the inside to the outside in the left-right direction X. Specifically, in the front-rear direction Y, the inclined surface 141 is disposed at 30 ° to the horizontal plane, in the up-down direction Z, the inclined surface 141 has a front side edge 1413 and a rear side edge 1414 which are opposed to each other in the front-rear direction, the front side edge 1413 and the rear side edge 1414 are disposed at 45 ° to a vertical plane in the left-right direction X, and in the left-right direction X, the front side edge 1413 and the rear side edge 1414 are disposed at 30 ° to the horizontal plane. The inclined surface 141 has an inner edge 1411 and an outer edge 1412, which are oppositely disposed at left and right sides, the inner edge 1411 is located on the top surface of the receiving wall 15 and is flush with the top surface of the receiving wall 15 in the left-right direction X, that is, the outer edge 1412 is inevitably lower than the top surface of the receiving wall 15, the outer edge 1412 is closer to the receiving cavity 13 than the outer surface of the long wall 121 facing away from the receiving cavity 13, and the outer edge 1412 is lower than the top surface of the bottom wall 11, that is, the relief groove 14 is recessed downward into the bottom wall 11. The insulation body 1 is further provided with a connecting surface 142 at the bottom of the receding groove 14, the connecting surface 142 is connected to the outer edge 1412 and the outer surface of the bottom wall 11 along the left-right direction X, the connecting surface 142 is horizontally disposed, similarly, the connecting surface 142 has a front edge and a rear edge which are opposite to each other in the front-back direction, the front edge of the connecting surface 142 is connected to the front edge 1413 in the left-right direction X and is parallel to the front edge, and the rear edge of the connecting surface 142 is connected to the rear edge 1414 in the left-right direction X and is parallel to the rear edge.

As shown in fig. 4, fig. 6 and fig. 9, the insulation body 1 is a matching inclined plane 141, in the front side and the rear side of the abdicating slot 14 are respectively provided with a first slot wall 143 and a second slot wall 144 which are connected with each other in the left-right direction X, and are located two of the front side and the rear side of the abdicating slot 14, the first slot wall 143 is relatively arranged along the front-back direction Y, and is located two of the front side and the rear side of the abdicating slot 14, the second slot wall 144 is expanded from the inside to the outside in the left-right direction X. Specifically, the first groove wall 143 is inwardly connected to the inner surface of the long wall 121, the first groove wall 143 is outwardly connected to the second groove wall 144, the first groove wall 143 is upwardly connected to the top surface of the long wall 121, and the bottom end of the first groove wall 143 is flush with the top surface of the receiving wall 15; the second groove wall 144 is inwardly connected to the first groove wall 143, the second groove wall 144 is outwardly connected to the outer surface of the insulation body 1, the second groove wall 144 is upwardly connected to the top surface of the long wall 121, and the second groove wall 144 is downwardly connected to the front edge 1413 or the rear edge 1414.

As shown in fig. 1, 5 and 8, the insulating housing 1 further includes four fastening grooves 123, two of the fastening grooves 123 are disposed on the long wall 121 on the left side of the accommodating cavity 13, the other two fastening grooves 123 are disposed on the long wall 121 on the right side of the accommodating cavity 13, and the two fastening grooves 123 on the left side of the accommodating cavity 13 and the two fastening grooves 123 on the right side of the accommodating cavity 13 are disposed opposite to each other along the left-right direction X. Specifically, the fastening groove 123 is recessed from the outer surface of the long wall 121 toward the accommodating cavity 13, and the fastening groove 123 penetrates the insulating body 1 downward. The two fastening grooves 123 on the same long wall 121 are symmetrically arranged about the first center line P1, and are located on the same long wall 121 at the front and rear sides of the avoiding groove 14.

As shown in fig. 5 and 8, the insulation body 1 further includes two fool-proof blocks 124, one of the fool-proof blocks 124 is disposed on the short wall 122 at the front side of the accommodating cavity 13, the other fool-proof block 124 is disposed on the short wall 122 at the rear side of the accommodating cavity 13, and the two fool-proof blocks 124 are disposed oppositely along the front-rear direction Y. Specifically, the fool-proof block 124 is formed by protruding from the outer surface of the short wall 122, and the fool-proof block 124 extends downward to the bottom surface of the bottom wall 11. Each fool-proof block 124 is provided with a through hole 1241 penetrating through the fool-proof block 124 along the up-down direction Z, and the through hole 1241 is used for making the material thickness uniform when the material is scooped and can be used for measurement reference assistance. The fool-proof blocks 124 are offset in the left-right direction X relative to the second centerline P2, and since the two fool-proof blocks 124 are disposed oppositely along the front-back direction Y, that is, the two fool-proof blocks 124 are both located on the same side of the second centerline P2 in the left-right direction X, in this embodiment, the two fool-proof blocks 124 are both located on the right side of the second centerline P2.

As shown in fig. 6, 7 and 8, since the receiving wall 15 is connected to the inner surface of the side wall 12, the receiving wall 15 is also provided in a rectangular parallelepiped frame. The receiving wall 15 includes two long walls 151 connected to the two long walls 121, respectively, and two short walls 152 connected to the two short walls 122, respectively. A plurality of first material taking grooves 16 are recessed downwards from the top surfaces of the long wall 151 and the short wall 152, wherein some of the first material taking grooves 16 on the long wall 151 penetrate through the long wall 151 inwards in the left-right direction X to be communicated with the accommodating cavity 13, and the first material taking grooves 16 communicated with the accommodating cavity 13 are used for absorbing the force applied to the terminals when the electric connector deforms at high temperature, preventing tin from cracking and preventing the edge pin holes from being unsaturated due to the fact that plastic of the edge pin holes flows too fast during injection molding.

As shown in fig. 7 and 8, the insulation body 1 further includes eight positioning blocks 19, each of the positioning blocks 19 is formed by extending the inner surface of each of the long walls 121 facing the receiving cavity 13 inward of the receiving cavity 13, and the two positioning blocks 19 disposed on the same long wall 121 are symmetrically disposed about the first center line P1. The inner surface of each short wall 122 facing the receiving cavity 13 also protrudes inward the receiving cavity 13 to form two positioning blocks 19, and the two positioning blocks 19 disposed on the same short wall 122 are symmetrically disposed about the second center line P2. Specifically, each positioning block 19 is downwardly connected to the top surface of the receiving wall 15, the inner surface of the positioning block 19 facing the receiving cavity 13 is disposed closer to the outer surface of the insulating body 1 than the inner surface of the receiving wall 15, the top surface of the positioning block 19 is a guiding inclined plane 191, the guiding inclined plane 191 extends downward from the outside to the inside of the top surface of the side wall 12, and the guiding inclined plane 191 is used for guiding the chip module 200 to be received in the receiving cavity 13. As shown in fig. 10, a plurality of positioning blocks 19 are used to position the periphery of the chip module 200.

As shown in fig. 7 and 8, a second material taking groove 17 is formed in each of the long walls 151 and the short walls 152 and is recessed downward from the opposite side of each positioning block 19 away from the side wall 12, and the second material taking groove 17 does not penetrate through the receiving wall 15. The second material taking groove 17 formed in the long wall 151 is located farther from the accommodating chamber 13 than the first material taking groove 16 formed in the long wall 151 in the left-right direction X, and the second material taking groove 17 formed in the short wall 152 and the first material taking groove 16 formed in the short wall 152 are parallel to each other in the left-right direction X.

As shown in fig. 1, fig. 3 and fig. 4, a plurality of terminals 2 are disposed in the bottom wall 11 surrounded by the receiving wall 15, the terminals 2 have an elastic arm 21 protruding upward from the top surface of the bottom wall 11, the elastic arm 21 has a contact portion 211 protruding into the receiving cavity 13, and the contact portion 211 is used for electrically connecting the chip module 200. Specifically, before the chip module 200 is mounted in the receiving cavity 13, the contact portion 211 is higher than the top surface of the receiving wall 15.

As shown in fig. 5 and 8, a plurality of the terminals 2 are located on both front and rear sides of the first center line P1, the elastic arms 21 of the terminals 2 extend in the front-rear direction Y, a plurality of the terminals 2 located on both front and rear sides of the first center line P1 are symmetrically disposed with respect to the first center line P1, and the elastic arm 21 of the terminal 2 on the front side of the first center line P1 and the elastic arm 21 of the terminal 2 on the rear side thereof extend toward each other.

As shown in fig. 1, 2 and 4, the cover 3 includes a boss 31 and a substrate 32 surrounding the boss 31, the boss 31 includes a top wall 311 and a side wall 312 extending downward from a peripheral edge of the top wall 311, a top surface of the top wall 311 is higher than the substrate 32, and the side wall 312 is connected to the substrate 32 downward. In the vertical direction Z, the area occupied by the boss 31 is smaller than the area occupied by the accommodating cavity 13, and the bottom surface of the substrate 32 is abutted to the top surface of the side wall 12.

As shown in fig. 1, 3 and 4, the boss 31 further includes two first grooves 313, the two first grooves 313 are respectively recessed inward from the side walls 312 at the left and right sides of the boss 31, the two first grooves 313 are oppositely disposed along the left and right direction X, in this embodiment, the first grooves 313 penetrate through the side walls 312 at the left and right sides of the boss 31 inward and downward, and the first grooves 313 are rectangular openings. In this embodiment, the width of the first groove 313 in the front-rear direction Y is equal to the width of the two first groove walls 143 of the avoiding groove 14 in the front-rear direction Y.

As shown in fig. 1, fig. 2 and fig. 4, the cover body 3 further includes two protruding portions 33 disposed at the left and right sides of the boss 31, the protruding portions 33 are formed by downwardly protruding the bottom surface of the base plate 32, two of the protruding portions 33 are disposed in the left and right direction X, and two of the protruding portions 33 and two of the receding grooves 14 are disposed in the up and down direction Z in a one-to-one manner. The protruding portion 33 respectively extends from the first groove 313 on the same side of the boss 31 to the outer side edge of the substrate 32 along the left-right direction X, and is accommodated in the receding groove 14 on the same side of the boss 31, and a gap exists between the end portion of the protruding portion 33 close to the first groove 313 and the corresponding side wall 312 in the left-right direction X. The bottom surface of the projection 33 is disposed lower than the top surface of the long wall 121 and higher than the contact portion 211 of the terminal 2. In this embodiment, the width of the bottom surface of the protruding portion 33 in the front-rear direction Y is smaller than the width of the first groove 313 in the front-rear direction Y, that is, the width of the bottom surface of the protruding portion 33 in the front-rear direction Y is smaller than the width of the avoiding groove 14 in the front-rear direction Y, so that the avoiding groove 14 receives the protruding portion 33.

As shown in fig. 1, 2 and 4, the cover 3 further includes two second grooves 34 corresponding to the two protrusions 33, the second grooves 34 are formed by being recessed downward at positions corresponding to the protrusions 33 on the top surface of the substrate 32, the second grooves 34 penetrate from the first grooves 313 to the outer edge of the substrate 32 along the left-right direction X and are located right above the receding groove 14, that is, the second grooves 34 penetrate through the corresponding protrusions 33 along the left-right direction X, so that the first grooves 313 on the same side of the boss 31 and the corresponding second grooves 34 are communicated with each other along the left-right direction X and form a receiving groove together, and the receiving groove is used for providing a grabbing position for taking the cover 3 from above the insulating body 1. In this embodiment, the bottom surface of the second groove 34 is lower than the top surface of the long wall 121, and the width of the bottom surface of the second groove 34 in the front-rear direction Y is smaller than the width of the protruding portion 33 in the front-rear direction Y, that is, the width of the bottom surface of the second groove 34 in the front-rear direction Y is smaller than the width of the first groove 313 in the front-rear direction Y, that is, the width of the bottom surface of the second groove 34 in the front-rear direction Y is smaller than the width of the avoiding groove 14 in the front-rear direction Y. And in the up-down direction Z, the thickness of the protruding portion 33 at a position directly below the first groove 313 is smaller than the thickness of the substrate 32. In other embodiments, the bottom surface of the second groove 34 is disposed at the same height as the top surface of the long wall 121, or slightly higher than the top surface of the long wall 121.

As shown in fig. 2, 3 and 4, the cover 3 further includes two protrusions 35, the two protrusions 35 are formed by protruding upward from the left and right ends of the top surface of the top wall 311, and the two protrusions 35 are respectively disposed corresponding to the two first grooves 313 up and down. The first groove 313 is recessed upward to the corresponding protrusion 35, and the top surface of the first groove 313 is higher than the top surface of the top wall 311. An identification part 351 is arranged on the top surface of the convex part 35, and the identification part 351 is used for identifying the position of the first groove 313. In this embodiment, a "Remove" word is engraved downward on the top surface of the convex portion 35 to remind the user to extract the cover 3 from the first groove 313 below the convex portion 35.

As shown in fig. 1 and 2, the cover body 3 is provided with two fastening portions 36 on the left and right sides of the boss 31, the fastening portions 36 are connected to the outer edge of the substrate 32, and the two fastening portions 36 on the same side of the boss 31 are located on the front and rear sides of the second groove 34 on the same side. The locking parts 36 on the left and right sides of the boss 31 are locked in the locking grooves 123 on the two long walls 121 correspondingly.

As shown in fig. 1 and 2, the cover 3 further includes two side plates 37, the two side plates 37 are respectively disposed on the front and rear sides of the boss 31 and are respectively connected to the outer edges of the base plate 32, the length of the side plates 37 in the left-right direction X is smaller than the length of the short wall 122, and each side plate 37 is provided with a notch 38 penetrating downward. The notches 38 on the front and rear sides of the boss 31 are correspondingly accommodated in the fool-proof blocks 124 on the two short walls 122.

As shown in fig. 1, 2 and 8, the fastening portions 36 are respectively disposed on the left and right sides of the cover 3 for being matched with the fastening grooves 123 on the two long walls 121, and the notches 38 are respectively disposed on the front and rear sides of the cover 3 for being matched with the fool-proof blocks 124 on the two short walls 122, so that after the cover 3 rotates horizontally by 90 ° or 270 °, the fastening portions 36 cannot be matched with the fastening grooves 123, and the notches 38 cannot be matched with the fool-proof blocks 124, so that the cover 3 cannot be matched with the insulating body 1, thereby achieving the fool-proof effect.

As shown in fig. 1, 2 and 8, since both of the fool-proof blocks 124 are located on the right side of the second center line P2 in the left-right direction X, after the cover 3 is horizontally rotated by 180 °, the front notch 38 originally located on the right side of the second center line P2 is changed into the rear notch 38 located on the left side of the second center line P2, so that the rear notch 38 located on the left side of the second center line P2 cannot be matched with the rear fool-proof block 124 located on the right side of the second center line P2, and the rear side plate 37 will interfere with the rear fool-proof block 124, and similarly, the front notch 38 located on the left side of the second center line P2 will not be matched with the front fool-proof block 124 located on the right side of the second center line P2, and the front side plate 37 will interfere with the front fool-proof block 124, thereby realizing the fool-proof effect.

As shown in fig. 11 to 13, an electrical connector 100 according to a second embodiment of the present invention is different from the electrical connector 100 according to the first embodiment of the present invention in that: the inclined surface 141 of the relief groove 14 is not expanded from inside to outside in the front-rear direction Y, the inner edge 1411 of the inclined surface 141 is farther from the accommodating cavity 13 than the inner surface of the long wall 121 in the left-right direction X, the outer edge 1412 of the inclined surface 141 is flush with the outer surface of the bottom wall 11, the insulating body 1 is provided with a plurality of third material taking grooves 18 recessed downward from the inclined surface 141, the first groove wall 143 and the second groove wall 144 are located on the same vertical plane, and the vertical plane is perpendicular to the outer surface of the long wall 121.

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

1) in the electrical connector 100, on the basis that the first groove 313 is formed on the boss 31, the second groove 34 is formed on the top surface of the substrate 32 in a downward concave manner, so that the first groove 313 and the second groove 34 are communicated with each other to form the accommodating slot for accommodating the fingers of the user, thereby increasing the grabbing space for taking the cover 3 from the upper side of the insulating body 1 without increasing the overall height of the electrical connector 100. Simultaneously because bulge 33 accept in on insulator 1 in the groove 14 of stepping down, second recess 34 extends to corresponding on left right direction X directly over the groove 14 of stepping down, make second recess 34 also has great size on left right direction X, and the convenience of customers finger is followed from outside to inside second recess 34 inserts in first recess 313, the comfort when having improved the user and using, and second recess 34 has played the guide effect of guide user finger inserting direction, and is simultaneously visible, the groove 14 of stepping down has not only played and is used for drawing to be located accept chamber 13 in the effect of chip module 200, has still played right bulge 33 with the effect that second recess 34 steps down, make full use of insulator 1 is original the spatial position of groove 14 of stepping down, satisfying the requirement that the lid 3 on the insulator 1 of being convenient for the finger is taken and can guarantee that overall height can not increase electric connector 100's requirement And meanwhile, an extra abdicating space is not additionally arranged on the insulation body 1, so that the production steps are reduced, and the production efficiency is improved.

2) Because the protruding part 33 extends to the outer side edge of the base plate 32 departing from the boss 31 in the left-right direction X, and the second groove 34 penetrates through the corresponding protruding part 33 in the left-right direction X, when a user's finger is inserted into the first groove 313 from the outer side to the inner side of the base plate 32, the finger cannot be impacted due to the blocking of the base plate 32, meanwhile, the size of the second groove 34 is further increased in the left-right direction X, the accommodating space of the user's finger is increased, and the comfort of the user in use is further improved.

3) Since the bottom surface of the protruding portion 33 is higher than the contact portion 211, the contact portion 211 is prevented from being pressed downward by the protruding portion 33 before the chip module 200 is accommodated in the accommodating chamber 13, thereby damaging the terminal 2.

4) Because the bottom surface of the second groove 34 is lower than the top surface of the side wall 12, the accommodating space of the accommodating groove formed between the first groove 313 and the second groove 34 in the vertical direction Z is further increased, and the requirement for facilitating the fingers to take the cover 3 on the insulating body 1 is further met.

5) Since the thickness of the protruding portion 33 at the position right below the first groove 313 is smaller than the thickness of the substrate 32 in the vertical direction Z, the accommodating space of the accommodating groove formed between the first groove 313 and the second groove 34 in the vertical direction Z is further increased, and the requirement for facilitating taking the cover 3 on the insulating body 1 by fingers is further satisfied.

6) The receding groove 14 is formed by downwardly recessing the top surface of the long wall 121, and on the basis that the accommodating cavity 13 is formed by enclosing the two long walls 121 and the two short walls 122, because the distance between the long walls 121 is smaller than the distance between the short walls 122, that is, the length of the short walls 122 is smaller than the length of the long walls 121, the cover 3 can be extracted from the upper side of the insulating body 1 without spanning the same length span as the long walls 121 between two fingers of a user, and the comfort of the user in use is improved. Because the first center line P1 of the containing cavity 13 passes through the avoiding groove 14, the second groove 34 and the avoiding groove 14 are oppositely arranged in the vertical direction Z, and the first groove 313 and the second groove 34 are interconnected in the horizontal direction X to form the containing groove, so that the finger extracting position of the user, that is, the position of the containing groove, is approximately located in the middle of the front and rear sides of the cover body 3, when the user extracts the cover body 3, approximately equal acting force is applied to the cover body 3 in the vertical direction Y, and the overall stress of the cover body 3 is ensured to be even.

7) Since the plurality of terminals 2 are located on the front and rear sides of the first center line P1, the chip module 200 can receive the same acting force in the front and rear direction Y when being accommodated in the accommodating cavity 13, thereby ensuring the uniform stress of the whole chip module 200.

8) Because the first groove 313 penetrates through the corresponding side wall 312 inwards, the depth of the user inserting the first groove 313 inwards is increased, and the force application of the cover body 3 is facilitated by the fingers of the user. Because the first groove 313 penetrates through the corresponding side wall 312 downwards, the side wall 312 is not arranged between the first groove 313 and the second groove 34 positioned below the first groove in the left-right direction X, so that a user is prevented from being inserted into the first groove 313 from the second groove 34 from the outside to the inside and is stopped, and the comfort of the user in use is improved.

9) Because the first groove 313 is recessed upwards to the corresponding convex part 35, and the top surface of the first groove 313 is higher than the top surface of the boss 31, the accommodating space of the first groove 313 in the vertical direction Z is further increased, and the requirement for taking the cover body 3 on the insulating body 1 by fingers is further met.

10) Since the identification part 351 is arranged on the top surface of the convex part 35, and the identification part 351 is used for identifying the position of the first groove 313, the user can be reminded of the position of the extraction position of the cover body 3, so that the user can use the cover conveniently.

11) Because the bottom of the receding groove 14 is provided with the inclined surface 141, the inclined surface 141 is inclined downward from inside to outside, the inner edge 1411 of the inclined surface 141 inwardly exceeds the inner surface of the accommodating cavity 13 facing the side wall 12 in the left-right direction X, the inner edge 1411 of the inclined surface 141 is located on the top surface of the accommodating wall 15, and the top surface of the accommodating wall 15 is used for supporting the chip module 200, so that when a user's finger is taken out from outside to inside the chip module 200, the depth of the finger inserted from outside to inside is increased, and the finger can be placed below the chip module 200, so as to better apply upward acting force to the chip module 200, and further extract the chip module 200 from the insulating body 1.

12) The inclined plane 141 expands from inside to outside, the groove of stepping down 14 is for the cooperation the inclined plane 141, in the front side of the groove of stepping down 14 be equipped with the inclined plane 141 the leading edge 1413 inclination is unanimous the second cell wall 144, in the rear side of the groove of stepping down 14 be equipped with the inclined plane 141 the trailing edge 1414 inclination is unanimous the second cell wall 144, also be located the groove of stepping down 14 front side the second cell wall 144 from inside to outside towards the front side slope, be located the groove of stepping down 14 rear side the second cell wall 144 from inside to outside towards the back side slope, make the space grow of the groove of stepping down 14 on the front and back direction Y to in the convenience of holding user's finger, with better with chip module 200 follows extract in insulator 1.

13) The bearing wall 15 is provided with the first drawing groove 16 in a downward concave mode, the opposite side, away from the side wall 12, of the positioning block 19 is provided with the second drawing groove 17 in a downward concave mode, and the inclined plane 141 is provided with the third drawing groove 18, so that the warping degree of the insulating body 1 in the injection molding process is reduced, the flatness of the surface of the insulating body 1 after molding is enhanced, and the welding difficulty of the insulating body 1 in welding to a carrier is reduced.

14) The left side and the right side of the cover body 3 are respectively provided with the buckling parts 36 for matching with the buckling grooves 123 on the two long walls 121, and the front side and the rear side of the cover body 3 are respectively provided with the notches 38 for matching with the fool-proof blocks 124 on the two short walls 122, so that after the cover body 3 rotates 90 degrees or 270 degrees horizontally, the buckling parts 36 cannot be matched with the buckling grooves 123, the notches 38 cannot be matched with the fool-proof blocks 124, and finally the cover body 3 cannot be matched with the insulating body 1, so that the fool-proof effect is realized.

15) Since the two fool-proof blocks 124 are both located on the right side of the second center line P2 in the left-right direction X, after the cover 3 is horizontally rotated by 180 °, the front notch 38 originally located on the right side of the second center line P2 is changed to the rear notch 38 located on the left side of the second center line P2, so that the rear notch 38 located on the left side of the second center line P2 cannot be matched with the rear fool-proof block 124 located on the right side of the second center line P2, and the rear side plate 37 interferes with the rear fool-proof block 124, and similarly, the front notch 38 located on the left side of the second center line P2 cannot be matched with the front fool-proof block 124 located on the right side of the second center line P2, and the front side plate 37 interferes with the front fool-proof block 124, thereby realizing the fool-proof effect.

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 for electrically connecting a chip module, comprising:

the chip module comprises an insulating body, a chip module and a chip module, wherein the insulating body is provided with an accommodating cavity for accommodating the chip module and a side wall surrounding the accommodating cavity, the side wall is provided with a yielding groove which is respectively arranged at the left side and the right side of the accommodating cavity in a downward concave mode from the top surface of the side wall, the yielding groove penetrates through the side wall from left to right, and the yielding groove is used for extracting the chip module positioned in the accommodating cavity;

the terminals are arranged on the insulating body and used for electrically connecting the chip module;

a cover body covering the insulation body, the cover body comprises a boss and a base plate surrounding the boss, the top surface of the boss is higher than the base plate, the left side surface and the right side surface of the boss are respectively provided with a first groove in an inward concave manner, the cover body is respectively provided with a convex part at the left side and the right side of the boss, the convex parts are arranged in a downward convex manner from the bottom surface of the base plate, the two convex parts are accommodated in the two abdicating grooves in a one-to-one correspondence manner, each convex part inwards extends into the accommodating cavity in the left direction and the right direction, the cover body is arranged in a downward concave manner at the position of the top surface of the base plate corresponding to the convex parts to form a second groove, the second groove extends to the position right above the abdicating groove in the left direction and the right direction, the first groove at the same side of the boss is communicated with the corresponding second groove in the left direction and the right direction, and the first groove and the corresponding second groove form an accommodating groove together, the accommodating groove is used for providing a grabbing position for extracting the cover body from the insulating body.

2. The electrical connector of claim 1, wherein: each terminal is provided with a contact part, the contact part protrudes upwards and extends into the containing cavity to be electrically connected with the chip module, and the bottom surface of the protruding part is higher than the contact part.

3. The electrical connector of claim 2, wherein: the bottom surface of the second groove is lower than the top surface of the side wall.

4. The electrical connector of claim 2, wherein: in the up-down direction, the thickness of the projection at a position directly below the first groove is smaller than that of the substrate.

5. The electrical connector of claim 1, wherein: the side wall has and is located two long walls of acceping the chamber left and right sides and is located two short walls of acceping both sides around the chamber, two long wall and two the short wall encloses to be established accept the chamber, the groove of stepping down certainly the top surface of long wall is concave downwards and is established the formation, it has a first central line along left right direction extension to accept the chamber, first central line passes the groove of stepping down.

6. The electrical connector of claim 5, wherein: each of the avoiding grooves is symmetrically arranged in front and back of the first central line.

7. The electrical connector of claim 5, wherein: each terminal comprises an elastic arm extending along the front-back direction, the elastic arm is provided with a contact part protruding into the accommodating cavity for electrically connecting the chip module, the terminals are positioned on the front side and the back side of the first central line, and the elastic arm of the terminal on the front side of the first central line and the elastic arm of the terminal on the back side of the first central line extend towards each other.

8. The electrical connector of claim 1, wherein: the boss comprises a top wall and a side wall formed by respectively extending downwards from the left side and the right side of the top wall, the side wall is connected with the substrate, the top wall is higher than the substrate, and the first groove penetrates through the corresponding side wall inwards and downwards.

9. The electrical connector of claim 1, wherein: the lid has certainly both ends are upwards protruding respectively about the top surface of boss and are established a convex part that forms, two the convex part respectively with two the first recess corresponds the setting from top to bottom, first recess is upwards concave to be established to corresponding the convex part, just the top surface of first recess is higher than the top surface of boss.

10. The electrical connector of claim 9, wherein: and a marking part is arranged on the top surface of the convex part and used for marking the position of the first groove.

11. The electrical connector of claim 1, wherein: the insulation body is arranged at the bottom of the receding groove and is provided with an inclined plane which inclines downwards from inside to outside, the inclined plane is provided with an inner edge, and the inner edge inwards exceeds the side wall in the left-right direction and faces the inner surface of the accommodating cavity.

12. The electrical connector of claim 11, wherein: the inclined plane has an outward flange, the outward flange compare the side wall deviates from the surface of acceping the chamber is close to acceping the chamber setting.

13. The electrical connector of claim 1, wherein: the insulating body is provided with a bottom wall positioned at the bottom of the accommodating cavity, the side wall extends upwards from the top surface of the bottom wall, the insulating body is further provided with a bearing wall which is arranged outside the terminals in a surrounding mode and extends upwards from the top surface of the bottom wall, the bearing wall is connected with the inner surface, facing the accommodating cavity, of the side wall, the terminals are provided with contact parts which extend upwards from the top surface of the bottom wall and are used for contacting the chip modules, the bearing wall is used for supporting the chip modules, and the bearing wall is provided with a plurality of first material taking grooves in a downward concave mode.

14. The electrical connector of claim 13, wherein: the first material drawing groove penetrates through the bearing wall inwards and is communicated with the bearing cavity.

15. The electrical connector of claim 13, wherein: and a plurality of positioning blocks are formed by protruding the side wall to the accommodating cavity and used for positioning the periphery of the chip module, the positioning blocks are connected with the accommodating wall downwards, the positioning blocks are provided with guiding surfaces for accommodating the chip module downwards in a guiding inclined plane of the accommodating cavity, the opposite side of the accommodating wall, which is far away from the side wall, of each positioning block is provided with a second material taking groove in a downward concave mode, and the second material taking grooves do not penetrate through the accommodating wall inwards.

16. The electrical connector of claim 1, wherein: the insulation body is provided with an inclined plane at the bottom of the abdicating groove, the inclined plane is inclined downwards from inside to outside, and the inclined plane is downwards and concavely arranged to form a plurality of third digging grooves.

17. The electrical connector of claim 1, wherein: the cover body is provided with two buckling parts which extend downwards on the left side and the right side of the boss respectively, the insulating body is provided with a buckling groove on each of the front side and the rear side of the abdicating groove respectively, the buckling grooves are formed by the concave arrangement of the outer surface of the insulating body along the left direction and the right direction, the buckling parts correspond to the buckling grooves, each buckling part comprises a first part extending from the base plate along the front direction and the rear direction and a second part extending downwards from the first part, and the buckling parts are located on the same side of the boss, the first part is located on the same side of the second groove, and the front side and the rear side of the second groove extend backwards.

18. The electrical connector of claim 1, wherein: the insulation body is provided with a fool-proof block outwards and convexly arranged on the front side and the rear side of the accommodating cavity respectively, the cover body is provided with a side plate which extends downwards on the front side and the rear side of the boss respectively, each side plate is provided with a notch which penetrates downwards, and the fool-proof block is accommodated in the notch.

19. The electrical connector of claim 18, wherein: the accommodating cavity is provided with a second center line extending along the front-back direction, the fool-proof blocks are offset in the left-right direction relative to the second center line, and the fool-proof blocks on the front side and the rear side of the accommodating cavity are positioned on the same side of the second center line.

20. The electrical connector of claim 1, wherein: the protruding part extends to in the left-right direction the base plate deviates from the outside edge of the boss, and the second groove penetrates through the corresponding protruding part in the left-right direction.