CN218525771U - Terminal module and electric connection assembly - Google Patents

Abstract

The utility model discloses a terminal module and electric connection assembly, electric connection assembly includes terminal module and accepts terminal module's insulating casing, terminal module includes insulating seat and a plurality of terminal, the terminal is formed with the butt joint portion that connects gradually after buckling, horizontally this somatic part, kink and vertical bayonet guide connection portion, inlay a plurality of terminals after will buckling and bury and form in insulating seat, the rear end face of self-insulation seat is recessed forward and is equipped with the constant head tank in order to correspond the locating part that shows each terminal somatic part along vertical direction running through, the constant head tank supplies injection mold's setting element to fix a position from top to bottom to the terminal, kink and locating part link to each other and extend backward insulating seat, relative and have the interval around kink and the constant head tank and avoid being encapsulated and influence the problem of measuring the coplanarity of guide connection portion, inlay fashioned terminal module again and can have good terminal coplanarity and injection mold simple structure from this, manufacturing cost is reduced.

Description

Terminal module and electric connection assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates to a terminal module and an electrical connection assembly, and more particularly, to a terminal module and an electrical connection assembly with a plug-in type connecting portion.

[ background ] A method for producing a semiconductor device

In the prior art, the electrical connection assembly comprises a terminal module for electrical connection, the terminal module comprises an insulating base and a plurality of terminals fixed in the insulating base, each terminal comprises a butt joint part connected with butt joint equipment, and a plug-in welding part formed by bending is inserted into a corresponding hole of a circuit board.

Through the terminal module of this kind of mode shaping, the rear end face of insulating seat often sets up the groove of stepping down that forms a rectangular shape of recessing forward and corresponds the department of buckling that steps down the terminal to avoid the terminal to interfere the extrusion with insulating seat at the in-process of buckling, the groove of stepping down runs through the left and right sides of insulating seat along the horizontal direction level, can conveniently bend the tool and get into in order to bend to a plurality of terminals, and the shaping in groove of should stepping down needs to adopt the injection mold who is provided with horizontal slider to accomplish at the in-process of moulding plastics, makes the injection mold structure of this insulating seat complicated, has increased the cost of moulding plastics, and when adopting the tool of bending to bend the terminal, the degree of bending of a plurality of weld parts can't accurate control, is difficult to guarantee that the degree of bending of a plurality of weld parts is the same, because the terminal itself has elasticity and makes the weld part after bending easily lead to the coplanarity difference of weld part department of a plurality of terminals because of self resilience force, can's the unable satisfy a plurality of terminals accurately insert the hole of circuit board simultaneously, influenced a plurality of terminals with the grafting and good electric connection of circuit board.

Therefore, there is a need for an improved electrical connection assembly to solve the above-mentioned problems.

[ Utility model ] content

To the problem of background art, the utility model aims to provide a terminal after will buckling is inlayed and is buried the shaping in the insulator seat, simplifies injection mold, reduction in production cost and terminal coplane degree good terminal module and electrical connection subassembly.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a terminal module, comprising: the insulating seat is provided with a plurality of positioning grooves which are recessed forwards from the rear end surface of the insulating seat, and each positioning groove penetrates through the top surface and the bottom surface of the insulating seat along the vertical direction; each terminal comprises a body part, a butt-joint part, a bent part and a plug-in type guide-joint part, wherein the body part is horizontally arranged, the butt-joint part extends forwards from the body part, the bent part is formed by bending the body part backwards, the plug-in type guide-joint part extends from the bent part in the vertical direction, the terminal forming the bent part is embedded and formed in the insulating base, each body part is provided with an embedded part fixedly arranged on the insulating base and a positioning part exposed in the positioning groove, the positioning parts correspond to the positioning grooves one by one and are connected with the bent part, the bent part and the guide-joint part extend out of the insulating base, the bent part is opposite to the positioning groove in the front-back direction, and the guide-joint part is positioned behind the rear end face of the insulating base and is parallel to the rear end face of the insulating base.

Further, in the width direction of the insulating base perpendicular to the front-back direction and the vertical direction, the distance between the two side edges of each positioning portion and the two wall surfaces of the corresponding positioning groove is equal, and the distance between the upper surface of the positioning portion and the top surface of the insulating base in the vertical direction is equal to the distance between the lower surface of the positioning portion and the bottom surface of the insulating base.

Furthermore, the locating part is located at the middle part of the locating groove corresponding to the locating part, and from the middle part of the locating groove, the width of the locating groove gradually increases towards the top surface of the insulating seat and the bottom surface of the insulating seat respectively in the extending direction.

Further, a plurality of the terminals are arranged along the width direction, an upper cutting groove is arranged between two adjacent terminals and downwards concaved from the top surface of the insulating base, and the distance between one embedded part of every two adjacent terminals and the center of the upper cutting groove in the width direction is equal to the distance between the other embedded part and the center of the upper cutting groove.

Further, a lower cutting groove is formed in the bottom surface of the insulating base in an upward concave mode and located between two adjacent terminals, and the lower cutting groove and the upper cutting groove are arranged in an aligned mode in the vertical direction.

The utility model provides an electric connection assembly, include: the insulating shell is provided with a mounting cavity which is forwards recessed from the rear end of the insulating shell; the terminal module comprises a plurality of terminals and an insulating seat, the terminals are formed by stamping and bending, each terminal comprises a body part horizontally arranged, a butt-joint part forwards extending from the body part, a bent part backwards bent from the body part, and an inserted guide-joint part vertically extending from the bent part, a plurality of positioning grooves are forwards and concavely arranged on the rear end surface of the insulating seat, each positioning groove penetrates through the top surface and the bottom surface of the insulating seat along the vertical direction, the plurality of terminals are embedded and formed in the insulating seat, each body part is provided with an embedded part fixedly arranged on the insulating seat and a positioning part exposed in the positioning groove, the positioning parts are connected with the bent parts, the plurality of positioning parts are in one-to-one correspondence with the plurality of positioning grooves, each bent part and each guide-joint part extend out of the mounting cavity through the corresponding positioning groove, the bent parts are opposite to the positioning grooves along the front and back directions, the rear end surface of the insulating seat is arranged at the rear end of the mounting cavity, and the guide-joint part is parallel to the rear end surface of the insulating seat.

Further, in the width direction of the insulating base perpendicular to the front-back direction and the vertical direction, the distances from the edges of the two sides of the positioning portion to the two wall surfaces of the positioning groove are equal, and the distance between the upper surface of the positioning portion and the top surface of the insulating base in the vertical direction is equal to the distance between the lower surface of the positioning portion and the bottom surface of the insulating base.

Furthermore, the insulating housing is provided with an extension portion extending forward in front of the mounting cavity, the extension portion is provided with a plurality of terminal grooves penetrating along the front-back direction and communicating with the mounting cavity backward, the plurality of terminal grooves correspond to the plurality of terminals one to one, each body portion extends from the mounting cavity into the terminal groove and bends forward from the body portion to extend to form the elastic butt joint portion, the butt joint portion extends out of the terminal groove, and a gap is formed between each body portion and the top surface and the bottom surface of the corresponding terminal groove.

Further, a gap between a lower surface of the body part and a bottom surface of the terminal groove in a vertical direction is larger than a distance between a highest point of the butting part and an upper surface of the body part.

Furthermore, the extension portion has a orientation the protruding at least butt joint piece of establishing of butt joint portion, the protruding direction of establishing of butt joint piece with the direction of buckling of butt joint portion is opposite, the butt joint piece be used for in vertical direction with a butt joint piece of joint portion common butt joint.

Further, the extension portion includes a plurality of cylinder portions and a front end portion located in front of the plurality of cylinder portions, each cylinder portion is provided with one terminal slot for accommodating the terminal, the cylinder portions surround the body portion of the corresponding terminal, a plurality of abutting blocks are arranged to protrude downward from the bottom of the front end portion, the plurality of abutting blocks are arranged in a row along the width direction of the insulating housing, the front end of each abutting block is provided with a guide surface which is inclined rearward and toward the abutting portion, and the plurality of abutting blocks and the plurality of abutting portions are arranged in a staggered manner in the vertical direction.

Furthermore, the insulation housing extends a partition board in the installation cavity along the width direction perpendicular to the front-back direction and the vertical direction, the partition board is located below the insulation seat, the plurality of guiding portions are located behind the partition board, at least one spacing block extends backwards from the rear end of the partition board, the spacing block separates two adjacent guiding portions, a limiting plate extends backwards from the bottom of the insulation housing and is located below the spacing block, a plurality of limiting grooves are formed in the rear end of the limiting plate in a forward concave mode, the plurality of guiding portions extend out of the installation cavity and correspondingly extend into the plurality of limiting grooves one by one, the partition board and the front wall surface of the limiting grooves are blocked in front of the guiding portions in the front-back direction, and each guiding portion is limited in the corresponding limiting groove in the width direction.

Compared with the prior art, the utility model discloses following beneficial effect has: the rear end face of the insulating base is forwardly concavely provided with the positioning groove, the bent portion and the guide connecting portion extend out of the insulating base, the bent portion and the positioning groove are opposite to each other in the front-rear direction and have a distance, the distance between the bent portion and the insulating base is increased by the arrangement of the positioning groove, the bent portion is enough to avoid the bent portion, the bent portion is prevented from being coated by the insulating base to influence the detection benchmark of the guide connecting portion, the positioning groove further penetrates through the top face and the bottom face of the insulating base in the vertical direction to facilitate the support of the upper positioning part and the lower positioning part of an injection mold during embedding forming, the terminals are firstly formed by stamping and then embedded, compared with the terminals formed by bending equipment, the insulating base is bent by the bending equipment, on the one hand, the terminals are provided with a more stable structure after being bent by stamping and bending, the guide connecting portion is not prone to rebound so as to ensure that the coplanarity of the guide connecting portions is good, on the other hand, the insulating base corresponds to each terminal and is provided with the positioning groove for positioning when the terminals are embedded, so that the slider is not required to be used for injection mold production, and the slider is simplified.

[ description of the drawings ]

FIG. 1 is a perspective view of the electrical connection assembly of the present invention;

fig. 2 is a perspective assembly view of the electrical connection assembly of the present invention from another perspective;

FIG. 3 is a schematic view of the assembly process of the electrical connection assembly of the present invention;

FIG. 4 is a cross-sectional view of the electrical connection assembly of the present invention in mating relationship;

fig. 5 is an exploded perspective view of the terminal module of the present invention;

fig. 6 is a sectional view of the embedded portion of the terminal module of the present invention;

fig. 7 is a cross-sectional view of the positioning portion of the terminal module according to the present invention.

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

[ detailed description ] A

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

Referring to fig. 1 to 7, it is shown that the electrical connection assembly 100 of the present invention is mounted to a circuit board 200, the electrical connection assembly 100 includes a terminal module 1 and an insulating housing 2 for accommodating and protecting the terminal module 1, the terminal module 1 includes an insulating base 11 and a plurality of terminals 12 embedded and molded in the insulating base 11, the plurality of terminals 12 extend forward to be electrically connected to a connecting member 300 and extend backward to connect the insulating base 11 and the insulating housing 2 to the circuit board 200.

As shown in fig. 5 to 7, the plurality of terminals 12 are formed by stamping and bending, the plurality of terminals 12 are arranged in a row along the width direction of the insulating base 11, each terminal 12 includes a body portion 121 horizontally disposed, a pair of elastic connecting portions 122 extending forward from the body portion 121 and bent to form, the connecting portions 122 are provided with metal plating layers electrically connected to the connecting members 300, a bent portion 123 bent backward from the body portion 121, and an insertion type connecting portion 124 extending vertically from the bent portion 123, the insertion type connecting portion 124 is inserted into a through hole of the circuit board 200 and is fixed by welding, compared with the bending by a bending device, the terminal 12 is formed by stamping by the stamping device, the stamping device has stronger pressure on the plurality of terminals 12 than the bending device, so that the plurality of terminals 12 have a more stable bending structure after being bent, and are not prone to rebound. The plurality of stamped and bent terminals 12 are uniformly arranged in a row and then embedded in the insulating base 11, each abutting portion 122 extends forward from the body portion 121 to the outside of the insulating base 11, the body portion 121 is partially embedded in the insulating base 11, each body portion 121 has an embedded portion 1211 fixedly arranged in the insulating base 11 and a positioning portion 1212 exposed outside the insulating base 11, the positioning portion 1212 is used for vertically abutting against and positioning the terminals 12 on an upper positioning member and a lower positioning member of an injection mold during injection molding, the positioning portion 1212 is directly connected to the bent portion 123, and the bent portion 123 and the guide portion 124 extend rearward out of the insulating base 11. In the insert-embedding molding process, a plurality of positioning grooves 111 are formed by being recessed forward from the rear end surface of the insulating base 11 corresponding to the plurality of positioning portions 1212, and the positioning portions 1212 are exposed from the positioning grooves 111, each positioning groove 111 is opposite to each bent portion 123 in the front-rear direction and has a distance to prevent the bent portion 123 from being covered by the insulating base 11, the guide portion 124 is located behind the rear end surface of the insulating base 11, the guide portion 124 is parallel to the rear end surface of the insulating base 11 and perpendicular to the bottom surface of the insulating base 11, so that whether the coplanarity of the guide portions 124 of the plurality of terminals 12 meets the standard can be detected by measuring the distance between the guide portion 124 and the rear end surface of the insulating base 11, the positioning grooves 111 further penetrate through the top surface and the bottom surface of the insulating base 11 in the vertical direction to facilitate the upper and lower positioning portions 1212 of the injection mold to abut against the upper and lower sides of the positioning portions 1212, and thus the positioning grooves 111 formed by the insulating base 11 are not elongated grooves in the prior art, and thus the adopted injection mold does not need to adopt a horizontal slide block, thereby reducing the production cost of the injection mold. The location portion 1212 is located the middle part of constant head tank 111, be in width direction promptly the both sides edge of location portion 1212 arrives the distance of the two wall faces of constant head tank 111 equals, in vertical direction the upper surface of location portion 1212 with distance between the top surface of insulating seat 11 equals the distance between the lower surface of location portion 1212 to the bottom surface of insulating seat 11, and certainly the middle part of constant head tank 111 begins constant head tank 111 moves towards respectively the top surface of insulating seat 11 with its width widens gradually in the direction that the bottom surface of insulating seat 11 extends, makes the upper and lower both ends of constant head tank 111 all form the horn mouth form of slope, and the wall that has compared vertical setting can effectively increase injection mold's the width of upper and lower setting element to can strengthen injection mold's setting element's structural strength, provide injection mold's life. An upper slot 112 is formed to be recessed downward from the top surface of the insulative housing 11 between two adjacent terminals 12, a distance between one of the embedded portions 1211 of the two adjacent terminals 12 in the width direction and the center of the upper slot 112 is equal to a distance between the other embedded portion 1211 and the center of the upper slot 112, and a lower slot 113 is formed to be recessed upward from the bottom surface of the insulative housing 11 between two adjacent terminals 12 and is aligned with the upper slot 112 in the vertical direction, so that the upper slot 112 and the lower slot 113 can reduce the thickness of the insulative housing 11 in the vertical direction, and avoid buckling deformation at the connection between two adjacent terminals 12 when the insulative housing 11 is molded, in the present embodiment, the terminal module 1 is provided with two terminals 12, while in other embodiments, the number of the terminals 12 may be set to be two or more, without limitation. The upper incised slots 112 and the lower incised slots 113 are correspondingly arranged according to the number of the terminals 12, so that the insulating base 11 can be conveniently cut by equipment to obtain the terminal module 1 according to the number of the terminals.

As shown in fig. 1 to 4, the insulating housing 2 includes a mounting cavity 21 recessed forward from a rear end of the insulating housing 2 for receiving the terminal module 1, a plurality of bent portions 123 and a plurality of guiding connection portions 124 extend backward out of the mounting cavity 21 through the positioning groove 111, a partition plate 22 extends in the mounting cavity 21 along a width direction of the insulating housing 2, the partition plate 22 is located below the insulating base 11, the guiding connection portions 124 are located behind the partition plate 22, a spacing block 221 extends backward from the rear end of the partition plate 22, and the spacing block 221 is located between two adjacent guiding connection portions 124 to space the two guiding connection portions 124. A limiting plate 23 extending backwards from the bottom of the insulating housing 2 is located below the spacing block 221, a plurality of limiting grooves 231 are recessed forwards from the rear end of the limiting plate 23, and the plurality of guiding portions 124 correspondingly extend into the plurality of limiting grooves 231 one by one, so that the front wall surfaces of the partition plate 22 and the limiting grooves 231 are jointly stopped in front of the plurality of guiding portions 124 in the front-back direction, and the partition plate 22 and the limiting grooves 231 are located at different heights, thereby further ensuring that the integral coplanarity of the plurality of guiding portions 124 at different heights is good, and the left and right side edges of the spacing block 221 and the left and right side walls of the limiting grooves 231 jointly limit the shaking of the plurality of guiding portions 124 in the width direction. The insulating housing 2 is provided with an extending portion 24 extending forward in front of the mounting cavity 21, the extending portion 24 has a plurality of terminal grooves 2411 penetrating in the front-back direction and communicating with the mounting cavity 21 backward, the plurality of terminal grooves 2411 correspond to the plurality of terminals 12 one by one, each body portion 121 extends from the mounting cavity 21 into the corresponding terminal groove 2411, the body portion 121 is bent forward to form an elastic abutting portion 122 extending forward from the body portion 121 to form the terminal groove 2411, a gap is provided between the top surface and the bottom surface of each body portion 121 and the terminal groove 2411, in order to prevent the elastic abutting portion 122 after bending from being interfered by the wall surface of the terminal groove 2411 when passing through the terminal groove 2411 and causing the metal plating layer of the abutting portion 122 to fall off when the abutting portion 122 is in an installation of the terminal module 1, in order to increase the elastic force arm of the abutting portion 122 when the abutting portion 122 is just started to abut against the terminal groove 2411, the elastic force arm is longer than that generated when the initial abutting portion 122 is deformed, which is beneficial to reduce the initial insertion force. The extending part 24 includes a plurality of cylinder parts 241 and a front end part 242 located in front of the plurality of cylinder parts 241, each cylinder part 241 is provided with one terminal groove 2411 to receive the terminal 12, the cylinder part 241 surrounds the body part 121 of the corresponding terminal 12 to avoid the problem that the terminal 12 is polluted by impurities such as oil stain, the front end part 242 is located above the plurality of butting parts 122, the bottom of the front end part 242 is provided with a plurality of abutting blocks 2421 protruding towards the plurality of butting parts 122, the protruding direction of the abutting blocks 2421 is opposite to the bending direction of the butting parts 122, so that the plurality of abutting blocks 2421 and the plurality of butting parts 300 abut against the upper and lower sides of the butting part 300 together in the vertical direction, and the elastic butting part 122 is contacted with the butting part 300 more stably, the front end of each abutting block 2421 is provided with a guiding surface 2422 which is inclined backwards and towards the abutting part 122, so that the abutting part 300 can be guided to be inserted in the abutting part 300 during abutting so as to reduce friction on the abutting part 300, the abutting blocks 2421 are arranged in a row along the width direction and are staggered with the abutting blocks 2421 in the vertical direction, the inserting and pulling force during abutting is further reduced so as to reduce abrasion on the abutting part 300, in the embodiment, the abutting part 300 is a gold finger of a circuit board, the abutting part 122 and the abutting block 2421 are staggered so that the abutting part and the abutting part 122 can be prevented from being intensively inserted and pulled in one place for multiple times so as to avoid abrasion on the gold finger of the abutting part 300, in other embodiments, the abutting part 300 can also be other plate-shaped terminals 12, and the abutting part 122 can be electrically contacted with the elastic abutting part 122.

The terminal module 1 is formed as follows: it is at first a plurality of terminal 12 makes a plurality ofly after the punching press bending type terminal 12 is along width direction align to be one row and place in injection mold, and injection mold's upper and lower setting element is to each along vertical direction location portion 1212 supports from top to bottom and holds the location, then begins to pour into the plastic into, waits to inlay to bury behind the shaping technology completion, the position that corresponds injection mold's upper and lower setting element on the insulating seat 11 has formed constant head tank 111, and is a plurality of constant head tank 111 all runs through along vertical direction the surface of insulating seat 11, and is a plurality of terminal 12 inlays to be formed in insulating seat 11, because each constant head tank 111 corresponds each location portion 1212, just constant head tank 111 with kink 123 is separated by a section distance along the fore-and-aft direction, is enough to dodge kink 123, and injection mold need not to adopt horizontal slider to shape terminal module 1 from this.

To sum up, the utility model discloses electricity connection component 100 has following beneficial effect:

1. from the rear end face of insulating seat 11 sets up the formation to the concave forward the constant head tank 111, kink 123 with lead connecting portion 124 and all extend outside insulating seat 11 just kink 123 with constant head tank 111 just has a distance along the fore-and-aft direction relatively, the setting of constant head tank 111 has increased kink 123 with distance between the insulating seat 11 is enough to dodge kink 123, avoids kink 123 by insulating seat 11 cladding influences the detection benchmark of leading connecting portion 124, constant head tank 111 further runs through along vertical direction the top surface and the bottom surface of insulating seat 11 support with the upper and lower setting element of the injection mold when conveniently inlaying the shaping and hold the upper and lower both sides of location portion 1212, just terminal 12 is for inlaying the shaping after punching press is buckled earlier again insulating seat 11, than the shaping earlier insulating seat 11 rethread bending equipment buckle terminal 12, on the one hand through punching press bending shaping terminal 12 has more stable structure after buckling, leading connecting portion 124 is difficult for kick-back, in order to guarantee that a plurality of coplanarity degree of leading connecting portion 124 is good, on the other hand insulating seat 11 is equipped with corresponding to each insulating terminal 12 the top surface of punching and inlaying the insulating seat 11 and the bottom surface and has been used for the slider has reduced the injection mold and has not needed the injection mold to reduce the cost of the injection mold when the horizontal injection mold structure and has set up and has not having simplified the terminal.

2. From the middle part of constant head tank 111 begins constant head tank 111 moves towards respectively the top surface of insulating seat 11 with its width widens gradually in the direction that the bottom surface of insulating seat 11 extends, makes the upper and lower both ends of constant head tank 111 all form the horn mouth form of slope, and the wall that has compared vertical setting can effectively increase injection mold's upper and lower setting element's width to can strengthen injection mold's setting element's structural strength, provide injection mold's life.

3. The upper slot 112 is formed by recessing downwards from the top surface of the insulating base 11 and is located between two adjacent terminals 12, and the distance between one of the embedded portions 1211 of the two adjacent terminals 12 in the width direction and the center of the upper slot 112 is equal to the distance between the other one of the embedded portions 1211 and the center of the upper slot 112, so that the thickness of the insulating base 11 is reduced, the buckling deformation at the connection position of the two adjacent terminals 12 when the insulating base 11 is formed is avoided, and the insulating base 11 can be cut along the position of the upper slot 112 as required to obtain the terminal module 1 meeting the requirement of the number of the terminals 12.

4. The insulating housing 2 is provided with the extending portion 24 in front of the mounting cavity 21, the extending portion 24 has a plurality of terminal grooves 2411 penetrating in the front-back direction and communicating with the mounting cavity 21 backward, the plurality of terminal grooves 2411 correspond to the plurality of terminals 12 one by one, each body portion 121 extends from the mounting cavity 21 into the terminal groove 2411, and bends forward from the body portion 121 to extend to form the elastic abutting portion 122, the abutting portion 122 extends out of the terminal groove 2411, and a gap is formed between each body portion 121 and the top surface and the bottom surface of the corresponding terminal groove 2411, so that when the terminal module 1 is mounted, the bent elastic abutting portion 122 cannot be excessively interfered by the wall surface of the terminal groove 2411 to cause abrasion of the metal plating on the abutting portion 122 when passing through the terminal groove 2411, and when the abutting portion 122 just starts to abut, an elastic force arm of the abutting portion 122 can be increased, which is beneficial to reducing an initial abutting force arm when the abutting portion 122 deforms in a structure in which the conventional terminal 121 of the terminal 12 abuts directly against the bottom surface of the terminal groove 2411.

5. The extending portion 24 includes a plurality of the cylinder portions 241 and the front end portions 242 located in front of the plurality of the cylinder portions 241, each cylinder portion 241 is provided with the terminal groove 2411 to accommodate the terminal 12, the cylinder portion 241 surrounds the body portion 121 of the corresponding terminal 12 to avoid the problem that the terminal 12 is contaminated by impurities such as oil stains, a plurality of the abutting blocks 2421 are protruded downwards from the bottom of the front end portion 242, the protruding direction of the abutting blocks 2421 is opposite to the bending direction of the abutting portion 122, and the abutting blocks 2421 and the abutting piece 300 abut against the upper and lower sides of the abutting piece 300 together in the vertical direction, so that the elastic abutting portion 122 and the abutting piece 300 are more stably contacted.

6. A plurality of the abutting blocks 2421 are arranged in a row along the width direction of the insulating housing 2, the front end of each abutting block 2421 is provided with the guide surface 2422 which is inclined backwards and towards the abutting part 122, the insertion of the abutting part 300 can be guided to reduce the friction on the abutting part 300 when in abutting, and the plurality of abutting blocks 2421 are arranged in a staggered mode with the plurality of abutting parts 122 in the vertical direction, so that the insertion and extraction force when in abutting is reduced to reduce the abrasion on the abutting part 300.

7. The plurality of bent portions 123 and the plurality of guiding portions 124 extend backwards out of the mounting cavity 21 through the positioning groove 111, the insulating housing 2 extends the partition plate 22 in the mounting cavity 21 in the width direction, the partition plate 22 is located below the insulating base 11, the plurality of guiding portions 124 are located behind the partition plate 22, and a spacing block 221 extends backwards from the rear end of the partition plate 22, the spacing block 221 is located between two adjacent guiding portions 124 to space apart the two guiding portions 124, the limiting plate 23 extends backwards from the bottom of the insulating housing 2 and is located below the spacing block 221, a plurality of limiting grooves 231 are recessed forwards from the rear end of the limiting plate 23, and the plurality of guiding portions 124 extend into the plurality of limiting grooves 231 one by one, so that the front wall surfaces of the partition plate 22 and the limiting grooves 231 are commonly stopped in front of the plurality of guiding portions 124 in the front-to-back direction, and the partition plate 22 and the limiting grooves 231 are located at different heights, further ensuring that the plurality of guiding portions 124 are at different heights and the side walls 221 and the side walls 124 are commonly stopped in the left-to-right direction, and the side walls 124 are also limited by the rocking of the limiting blocks in the left-to-right direction.

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 the modifications of the equivalent techniques using the content of the present specification and the drawings are included in the scope of the present invention.

Claims (12)

1. A terminal module, comprising:

the insulating seat is provided with a plurality of positioning grooves which are recessed forwards from the rear end surface of the insulating seat, and each positioning groove penetrates through the top surface and the bottom surface of the insulating seat along the vertical direction;

each terminal comprises a body part, a butt-joint part, a bent part and a plug-in type guide-joint part, wherein the body part is horizontally arranged, the butt-joint part extends forwards from the body part, the bent part is formed by bending the body part backwards, the plug-in type guide-joint part extends from the bent part in the vertical direction, the terminal forming the bent part is embedded and formed in the insulating base, each body part is provided with an embedded part fixedly arranged on the insulating base and a positioning part exposed in the positioning groove, the positioning parts correspond to the positioning grooves one by one and are connected with the bent part, the bent part and the guide-joint part extend out of the insulating base, the bent part is opposite to the positioning groove in the front-back direction, and the guide-joint part is positioned behind the rear end face of the insulating base and is parallel to the rear end face of the insulating base.

2. The terminal module of claim 1, wherein in a width direction of the insulating base perpendicular to the front-back direction and the vertical direction, distances from both side edges of each positioning portion to both wall surfaces of the positioning slot corresponding thereto are equal, and a distance between an upper surface of the positioning portion and a top surface of the insulating base in the vertical direction is equal to a distance between a lower surface of the positioning portion and a bottom surface of the insulating base.

3. The terminal module of claim 1, wherein the positioning portion is located at the middle of the positioning groove corresponding to the positioning portion, and the width of the positioning groove gradually increases from the middle of the positioning groove toward the top surface of the insulating base and the bottom surface of the insulating base respectively.

4. The terminal module as set forth in claim 1, wherein a plurality of said terminals are arranged in a width direction, an upper slit is formed between two adjacent ones of said terminals by recessing downward from a top surface of said housing, and a distance between one of said buried portions of every two adjacent ones of said terminals and a center of said upper slit in the width direction is equal to a distance between the other one of said buried portions and the center of said upper slit.

5. The terminal module of claim 4, wherein a lower slot is recessed upwardly from a bottom surface of the housing between two adjacent terminals, and the lower slot is vertically aligned with the upper slot.

6. An electrical connection assembly, comprising:

the insulating shell is provided with a mounting cavity which is forwards recessed from the rear end of the insulating shell;

the terminal module comprises a plurality of terminals and an insulating seat, the terminals are formed by stamping and bending, each terminal comprises a body part horizontally arranged, a butt-joint part forwards extending from the body part, a bent part backwards bent from the body part, and an inserted guide-joint part vertically extending from the bent part, a plurality of positioning grooves are forwards and concavely arranged on the rear end surface of the insulating seat, each positioning groove penetrates through the top surface and the bottom surface of the insulating seat along the vertical direction, the plurality of terminals are embedded and formed in the insulating seat, each body part is provided with an embedded part fixedly arranged on the insulating seat and a positioning part exposed in the positioning groove, the positioning parts are connected with the bent parts, the plurality of positioning parts are in one-to-one correspondence with the plurality of positioning grooves, each bent part and each guide-joint part extend out of the mounting cavity through the corresponding positioning groove, the bent parts are opposite to the positioning grooves along the front and back directions, the rear end surface of the insulating seat is arranged at the rear end of the mounting cavity, and the guide-joint part is parallel to the rear end surface of the insulating seat.

7. The electrical connection assembly of claim 6, wherein the distance between the two side edges of the positioning portion and the two wall surfaces of the positioning groove is equal in the width direction of the insulating base perpendicular to the front-back direction and the vertical direction, and the distance between the upper surface of the positioning portion and the top surface of the insulating base in the vertical direction is equal to the distance between the lower surface of the positioning portion and the bottom surface of the insulating base.

8. The electrical connector assembly as claimed in claim 6, wherein the insulative housing has an extension portion extending forward in front of the mounting cavity, the extension portion has a plurality of terminal slots extending in a front-to-back direction and communicating with the mounting cavity, the plurality of terminal slots correspond to the plurality of terminals one-to-one, each of the body portions extends into the terminal slots from the mounting cavity and is bent forward from the body portion to form the elastic mating portions, the mating portions extend out of the terminal slots, and a gap is formed between each of the body portions and the top and bottom surfaces of the corresponding terminal slots.

9. The electrical connection assembly of claim 8, wherein a gap between the lower surface of the body portion and the bottom surface of the terminal groove in the vertical direction is greater than a distance between a highest point of the mating portion and the upper surface of the body portion.

10. The electrical connection assembly as claimed in claim 8, wherein the extension portion has at least one contact block protruding toward the mating portion in a direction opposite to a bending direction of the mating portion, the contact block being configured to vertically contact a mating member with the mating portion.

11. The electrical connector assembly of claim 10, wherein the extension portion includes a plurality of barrel portions and a front end portion located in front of the plurality of barrel portions, each of the barrel portions has one of the terminal slots for receiving the terminal, the barrel portions surround the body portion of the corresponding terminal, a plurality of the contact blocks are protruded downward from a bottom of the front end portion, the plurality of contact blocks are arranged in a row in a width direction of the insulating housing, a front end of each of the contact blocks has a guide surface inclined rearward and toward the contact portion, and the plurality of contact blocks are vertically offset from the plurality of contact portions.

12. The electrical connection assembly of claim 6, wherein the insulative housing has a partition extending in a width direction perpendicular to the front-rear direction and the vertical direction in the mounting cavity, the partition is located below the insulative housing, the plurality of guiding portions are located behind the partition, at least one spacer is extended backward from the rear end of the partition, the spacer separates two adjacent guiding portions, a limiting plate is extended backward from the bottom of the insulative housing and located below the spacer, a plurality of limiting grooves are recessed forward from the rear end of the limiting plate, the plurality of guiding portions extend out of the mounting cavity and extend into the plurality of limiting grooves in a one-to-one correspondence manner, the partition and the front wall of the limiting groove block the front of the guiding portion in the front-rear direction, and each guiding portion is limited in the corresponding limiting groove in the width direction.

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