CN214589345U - Electrical connector - Google Patents

Abstract

The utility model provides an electric connector, it has insulator and a plurality of power supply terminal, insulator have be used for installing the installation department on the circuit board, certainly butt joint portion that the installation department extends forward, the butt joint chamber that sets up is opened forward and a plurality of along the preceding back direction extend and with the terminal groove that the butt joint chamber is linked together, the power supply terminal is fixed in insulator's corresponding terminal groove, each power supply terminal be the slice and include the fixing portion of fixing in corresponding terminal inslot, certainly the front end of fixing portion extends at least one contact site that forms forward and certainly the rear end of fixing portion is buckled and is extended at least one leg that forms, insulator has two along the direction of height superpose the butt joint chamber, each the butt joint intracavity is acceptd the relative setting of contact site the power supply terminal. The utility model discloses electric connector can be applicable to the transmission of more heavy current.

Description

Electrical connector

Technical Field

The utility model relates to an electric connector especially relates to an electric connector that can transmit heavy current.

Background

The power terminal of the conventional electrical connector is usually formed by forming one or dividing into a plurality of contact arms from the front end of the metal sheet, and as the requirement of consumers for the application of large current transmission of the electrical connector is higher and higher, the existing electrical connector cannot meet the requirement of large current transmission.

In view of the above, there is a need for an improved electrical connector to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric connector that can transmit heavy current.

In order to achieve the above-mentioned purpose of the utility model, the utility model provides an electric connector, which comprises an insulating body and a plurality of power terminals, the insulating body is provided with a mounting part for mounting on a circuit board, a butt joint part extending forwards from the mounting part, a butt joint cavity arranged forwards in an open way and a plurality of terminal grooves extending along the front-back direction and communicated with the butt joint cavity, the power terminals are fixed in corresponding terminal grooves of the insulating body, each power terminal is sheet-shaped and comprises a fixing part fixed in the corresponding terminal groove, at least one contact part formed by extending forwards from the front end of the fixing part and at least one welding leg formed by bending and extending from the rear end of the fixing part, the insulating body is provided with two butt joint cavities which are overlapped along the height direction, and the power terminals with opposite contact parts are accommodated in each butt joint cavity.

As a further improvement of the utility model, the interval between the horizontal central plane in two butt joint chambeies is not more than 8 mm.

As a further improvement of the present invention, the number of rows of the leg of the power supply terminal in the front-rear direction is a multiple of four.

As a further improvement of the present invention, the insulating body has the top wall and the bottom wall that set up relatively in its direction of height both sides and lie in the direction of height intermediate wall between top wall and the bottom wall, the top wall has the double-phase to the wall of injecing the butt joint chamber that forms to be located the upside with the intermediate wall, the bottom wall has the double-phase to the wall of injecing the butt joint chamber that forms to be located the downside with the intermediate wall, the terminal slot is formed in the injecing the double-phase to the wall that forms to the butt joint chamber.

As a further improvement of the present invention, the mounting surface of the mounting portion is located on the lower side of the intermediate wall in the height direction.

As a further improvement of the present invention, each of the terminal grooves accommodates a first terminal and a second terminal, the first terminal has a first contact portion located at one end thereof, the second terminal has a second contact portion located at one end thereof, and the first contact portion and the second contact portion are arranged side by side.

As a further improvement of the present invention, the fillet of the second terminal and the fillet of the first terminal disposed side by side with the contact portion thereof are arranged in a straight line.

As a further improvement of the present invention, the length (distance between both ends) of the plurality of power terminals is shortened with a decrease in the center height of the terminal groove accommodating the plurality of power terminals in the height direction.

As a further improvement of the present invention, the number of rows of the holding portion of the power terminal in the height direction is twice the number of rows of the solder fillet in the front-rear direction.

As a further improvement of the present invention, the number of rows of the holding portion of the power terminal in the height direction is equal to the number of rows of the solder fillet in the front-rear direction.

The utility model has the advantages that: the electric connector of the utility model adopts the design of the double-layer butt joint cavity to transmit the heavy current so as to be connected with the power supply unit, thereby greatly improving the product power and supporting the continuous upgrade of the power supply unit; meanwhile, the distance between the horizontal central plane of the butting cavity positioned on the upper side and the horizontal central plane of the butting cavity positioned on the lower side is not more than 8mm, so that the overall height and the central height of the electric connector are reduced, and the electric connector is electrically connected with a butting element.

Drawings

Fig. 1 is a perspective assembly view of a first embodiment of the electrical connector of the present invention.

Fig. 2 is a view of the electrical connector of fig. 1 from another perspective.

Fig. 3 is an exploded perspective view of the electrical connector shown in fig. 1.

Fig. 4 to 5 are sectional views of the electrical connector shown in fig. 1.

Fig. 6 is a perspective assembly view of a second embodiment of the electrical connector of the present invention.

Fig. 7 is a view of the electrical connector of fig. 6 from another perspective.

Fig. 8 is an exploded perspective view of the electrical connector shown in fig. 6.

Fig. 9 is a view of the electrical connector of fig. 8 from another perspective.

Fig. 10 to 12 are sectional views of the electrical connector shown in fig. 6.

Fig. 13 is a perspective assembly view of a third embodiment of the electrical connector of the present invention.

Fig. 14 is a cross-sectional view of the electrical connector of fig. 13.

Fig. 15 is an exploded perspective view of the electrical connector of fig. 13.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. However, the present invention is not limited to the embodiment, and the structural, method, or functional changes made by those skilled in the art according to the embodiment are all included in the scope of the present invention.

Referring to fig. 1 to 5, a first embodiment of an electrical connector 100 of the present invention is shown, wherein the electrical connector 100 includes an insulating housing 1 and a plurality of power terminals 2 fixed to the insulating housing 1. For convenience of description, the following description will be made with the mating end of the electrical connector 100 as a front end and the other end opposite to the mating end as a rear end, that is, the front-rear direction is the mating direction of the electrical connector 100 and the mating element (not shown), and meanwhile, one direction perpendicular to the front-rear direction is defined as a transverse direction and the other direction perpendicular to the front-rear direction is defined as a height direction.

The insulating body 1 has a mounting portion 11 for mounting on a circuit board (not shown), a mating portion 12 extending forward from the mounting portion 11, a mating cavity 10 opening forward, and a plurality of terminal slots 13 extending in the front-rear direction and communicating with the mating cavity 10.

Further, a partition 14 is disposed between every two terminal slots 13 adjacent in the transverse direction, each terminal slot 13 extends in the front-back direction and penetrates through the insulating body 1, each partition 14 also extends in the front-back direction, and each partition 14 extends forward to the abutting surface 120 of the insulating body 1.

In the present invention, in order to realize the transmission of larger current, the insulation body 1 has two overlapped in the height direction the butt joint chamber 10, each of which contains the power terminal 2 with the contact part 202 relatively arranged in the butt joint chamber 10. Wherein the docking chamber 10 located at the upper side has a horizontal center plane C1-C1 'and the docking chamber 10 located at the lower side has a horizontal center plane C2-C2'.

Meanwhile, as shown in fig. 5, the distance between the horizontal center planes of the two docking cavities 10 is not greater than 8mm, that is, the distance between the horizontal center plane C1-C1 'of the docking cavity 10 located at the upper side and the horizontal center plane C2-C2' of the docking cavity located at the lower side in the height direction is not greater than 8mm, so as to reduce the overall height and the center height of the electrical connector 100.

Specifically, the insulating body 1 has a top wall 101 and a bottom wall 102 disposed opposite to each other on both sides in a height direction thereof, and a middle wall 103 located between the top wall 101 and the bottom wall 102 in the height direction, the top wall 101 and the middle wall 103 have opposite wall surfaces defining a docking chamber 10 located on an upper side, the bottom wall 102 and the middle wall 103 have opposite wall surfaces defining a docking chamber 10 located on a lower side, and the terminal grooves 13 are formed on the opposite wall surfaces defining the docking chamber 10.

In the present invention, the mounting portion 11 has a mounting surface 110 for mounting on the circuit board, and in the height direction, the mounting surface 110 of the mounting portion 11 is located on the lower side of the intermediate wall 103 in the height direction.

In addition, the mounting surface 110 is located below the horizontal center plane C2-C2' in the height direction. Further, in the present embodiment, the mounting surface 110 is coplanar with the lower surface of the bottom wall 102.

Meanwhile, in the present invention, the insulating body 1 has four rows of terminal grooves 13 arranged at intervals in the height direction, and the two rows of terminal grooves 13 located at the upper side are communicated with the docking chamber 10 located at the upper side and are separated by the first partition wall 104 located therebetween in the height direction; the two rows of terminal grooves 13 on the lower side are communicated with the docking cavities 10 on the lower side, and are separated by the second partition wall 105 located therebetween in the height direction, that is, two rows of terminal grooves 13 are correspondingly communicated with each docking cavity 10; meanwhile, the lengths of the four rows of terminal grooves 13 in the front-rear direction decrease in order from the top to the bottom.

A front end surface of the first partition wall 104 is flush with a front end surface of the second partition wall 105, and a rear end surface of the first partition wall 104 is located on a rear side of the front end surface of the second partition wall 105, so that a length of the first partition wall 104 in the front-rear direction is larger than a length of the second partition wall 105 in the front-rear direction. The intermediate wall 103 extends forward to the abutting surface 120 of the insulating body 1, and a rear end surface of the intermediate wall 103 is located between a rear end surface of the first partition wall 104 and a rear end surface of the second partition wall 105 in the front-rear direction. Further, the rear end surface of the second partition wall 105 is located on the rear side of the rear end surface of the bottom wall 102.

In the present invention, each of the terminal grooves 13 includes a first groove portion 131 and a second groove portion 132 which are communicated with each other, wherein the first groove portion 131 is located at the front side to accommodate the contact portion 202 of the power terminal 2, and the second groove portion 132 is located at the rear side to accommodate and position the holding portion 201 of the power terminal pair 2.

Referring to fig. 3 to 5, the power terminals 2 are fixed in the corresponding terminal slots 13 of the insulating housing 1, and each power terminal 2 is sheet-shaped and includes the holding portion 201 held in the corresponding terminal slot 13, at least one contact portion 202 formed by extending forward from the front end of the holding portion 201, and at least one solder leg 203 formed by bending and extending from the rear end of the holding portion 201.

Each power terminal 2 has a contact arm 204 formed by extending forward from the holding portion 201, and the contact portion 202 is located at the front of the contact arm 204 and is bent and formed to protrude toward the horizontal central plane C1-C1', C2-C2' of the corresponding mating cavity 10; the holding portion 201 of each of the power terminals 2 is formed to extend backward from the contact portion 202 thereof, and is a sheet-like structure extending in a horizontal direction.

In the present invention, the number of rows of the solder tails 203 of the power supply terminal 2 in the front-rear direction is a multiple of four.

In addition, in the present embodiment, the lengths of the plurality of power terminals 2 are reduced as the center height of the terminal groove 13 accommodating the power terminals in the height direction is reduced. Specifically, as shown in fig. 5, the length of the power terminal 2, that is, the material length of the power terminal 2 from the top to the bottom, is obviously seen, as the central height of the four rows of terminal grooves 13 decreases, the material length of the power terminal 2 accommodated therein also decreases.

Further, in the present embodiment, the lengths of the plurality of power terminals 2 in the front-rear direction also decrease as the center height of the terminal groove 13 accommodating the same in the height direction decreases; the height of the plurality of power terminals 2 in the height direction is also reduced as the center height of the terminal groove 13 accommodating the plurality of power terminals is reduced, so that four rows of the power terminals 2 can be sequentially and respectively mounted in the insulating body 1.

In the present embodiment, the number of rows of the holding portions 201 of the power terminal 2 in the height direction is equal to the number of rows of the solder tails 203 in the front-rear direction. Taking the illustrated embodiment as an example, the holding portions 201 are arranged in four rows in the height direction, and the solder tails 203 corresponding to the four rows of holding portions 201 are staggered in the front-rear direction to be also arranged in four rows; that is, the solder tails 203 are bent downward from the corresponding rows of the holding portions 201 and then independently arranged in a row, and are not merged with the solder tails 203 corresponding to the other rows of the holding portions 201 in a row.

In addition, in the utility model discloses in, electric connector 100 still has and is located power supply terminal 2 is along a plurality of signal terminal 3 of one of them side in the transverse direction, as shown in fig. 1 in the embodiment that the utility model discloses demonstrate, it is a set of signal terminal 3 sets up in the side of downside butt joint chamber 10, in other embodiments, also can set up the side that docks chamber 10 or the side that two dock chamber 10 at the upper side as required and be provided with a set of signal terminal 3 respectively.

Referring to fig. 6 to 12, in a second embodiment of the electrical connector 100' of the present invention, the electrical connector 100' in this embodiment also includes an insulating body 1' and a plurality of power terminals 2' fixed to the insulating body 1', wherein the insulating body 1' also has a double-layer docking cavity 10' stacked in a height direction, and the basic structure and the assembly relationship of the insulating body 1' and the power terminals 2' are the same as the electrical connector 100 in the first embodiment, and are not repeated herein, and the following description is only made with the differences:

in the present embodiment, at least two power terminals 2' are received in each terminal slot 13', and the contact portions 202' of the two power terminals 2' located in the same terminal slot 13' are arranged in a row in parallel along the height direction; as a whole, the contact portions 202' of the power supply terminals 2' accommodated in the terminal grooves 13' located at the same center height are arranged in parallel in a row in the lateral direction.

Specifically, the power terminal 2' includes at least a first terminal 21' and a second terminal 23', the first terminal 21' and the second terminal 23' are each provided with at least one of the contact portions 202', and each of the terminal grooves 13' accommodates the first terminal 21' and the second terminal 23 '. Specifically, the first terminal 21 'has a first contact portion 2021' at one end thereof, the second terminal 23 'has a second contact portion 2023' at one end thereof, and the first contact portion 2021 'is arranged side by side with the second contact portion 2023'.

In the present embodiment, the solder tails 203' of the second terminals 23' and the solder tails 203' of the first terminals 21' arranged side by side with the contact portions 202' thereof are aligned, which not only reduces the space occupied by the circuit board, but also facilitates the subsequent soldering operation.

In other embodiments, the power terminal 2' may further include a third terminal located in the same terminal slot 13' as the first terminal 21' and the second terminal 23', and the contact portions 202' of the first, second and third terminals are arranged in parallel in a row along the transverse direction.

In addition, in the present embodiment, the mounting surface 110 'of the insulative housing 1' is located at a lower side of the horizontal center plane C2-C2 'of the insulative housing 1' in the height direction, but further, in the present embodiment, the mounting surface 110 'is located at an upper side of the lower surface of the bottom wall 102'.

In the present embodiment, the power terminals 2 'are fixed in the insulating housing 1' by the interference portions 2011 'formed outside the holding portions 201', and the lengths of the plurality of power terminals 2 'in the front-rear direction are also shortened as the center height of the terminal groove 13' accommodating the power terminals decreases in the height direction.

In addition, unlike the first embodiment, the number of rows of the holding portions 201' of the power terminal 2' in the height direction is twice the number of rows of the solder tails 203' in the front-rear direction. As shown in fig. 11 and 12, the embodiment shown is taken as an example to illustrate, the holding portions 201' are arranged in eight rows in the height direction, but the solder tails 203' corresponding to the eight rows of holding portions 201' are arranged in four rows in the front-back direction; that is, the solder tails 203 'are bent downward from the corresponding rows of the holding portions 201' and combined with the solder tails 203 'of the corresponding power terminals 2' sharing the terminal grooves 13 'with the holding portions 201' to form a row, in other words, the solder tails 203 'of the power terminals 2' located in the same terminal groove 13 'are arranged in a row, and the solder tails 203' of the power terminals 2 'correspondingly received by the terminal grooves 13' located at the same central height are arranged in a row as a whole.

Please refer to fig. 13 to 15, which are illustrations of a third embodiment of the electrical connector 100 "of the present invention, the electrical connector 100" in this embodiment also includes an insulating body 1 "and a plurality of power terminals 2" fixed to the insulating body 1 ", wherein the insulating body 1" also has a double-layer docking cavity 10 "stacked along a height direction, and the basic structure and the assembly relationship of the insulating body 1" and the power terminals 2 "are the same as the electrical connector 100' in the second embodiment, and are not repeated herein, and the following description is only made with the differences:

in the present embodiment, unlike the second embodiment but the same as the first embodiment, the number of rows in the height direction of the holding portion 201 "of the power terminal 2" is equal to the number of rows in the front-rear direction of the solder tail 203 "thereof.

Specifically, taking the illustrated embodiment as an example, the holding portions 201 "are arranged in eight rows in the height direction, and the solder tails 203" corresponding to the eight rows of holding portions 201 "are staggered in the front-rear direction to be also arranged in eight rows; that is, the solder tails 203 "are bent downward from the corresponding rows of the holding portions 201" and then independently arranged in rows, and are not merged with the solder tails 203 "corresponding to other rows of the holding portions 201".

In accordance with the first two embodiments, the number of rows of the solder tails 203 "of the power terminal 2" in the front-rear direction is a multiple of four.

In addition, in the present embodiment, the electrical connector 100 "further includes a cover 4 assembled to the rear portion of the insulating main body 1", where the cover 4 "includes a top plate 41", a pair of side plates 42 "extending downward from both sides of the top plate 41" in the transverse direction, and a plurality of partition plates 43 "located between the pair of side plates 42". A plurality of the partition plates 43 "are arranged uniformly in the lateral direction, and each of the partition plates 43" is formed to protrude downward from the lower surface of the top plate 41 "and extends in the front-rear direction. Each side plate 42 "has a positioning portion 421" protruding toward the outer side of the electrical connector 100 ", and in the illustrated embodiment, the positioning portion 421" is located at the bottom end of the side plate 42 ". Accordingly, the insulation body 1 "has a positioning groove 115" engaged with the positioning portion 421 ".

The electric connectors 100, 100 'in the embodiments of the present invention adopt the design of the double-layer butt joint cavities 10, 10' to transmit the large current to connect with the power supply unit, thereby greatly improving the product power and supporting the continuous upgrade of the power supply unit; meanwhile, the distance between the horizontal center plane C1-C1 'of the upper side docking cavity 10, 10' and the horizontal center plane C2-C2 'of the lower side docking cavity is not more than 8mm, so as to reduce the overall height and the center height of the electrical connector 100, 100' for electrically connecting with the docking element.

The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.

Claims (10)

1. An electric connector comprises an insulating body and a plurality of power terminals, wherein the insulating body is provided with an installation part for being installed on a circuit board, a butt joint part extending forwards from the installation part, a butt joint cavity opening forwards and a plurality of terminal grooves extending forwards and backwards and communicated with the butt joint cavity, the power terminals are fixed in the corresponding terminal grooves of the insulating body, each power terminal is in a sheet shape and comprises a fixing part fixed in the corresponding terminal groove, at least one contact part extending forwards from the front end of the fixing part and at least one welding leg bent and extending from the rear end of the fixing part, and the electric connector is characterized in that: the insulating body is provided with two butt joint cavities which are overlapped along the height direction, and the power terminals with opposite contact parts are accommodated in each butt joint cavity.

2. The electrical connector of claim 1, wherein: the distance between the horizontal central planes of the two butt joint cavities is not more than 8 mm.

3. The electrical connector of claim 1, wherein: the number of rows of the welding feet of the power supply terminal in the front-back direction is a multiple of four.

4. The electrical connector of claim 3, wherein: the insulating body is provided with a top wall and a bottom wall which are oppositely arranged on two sides of the insulating body in the height direction, and an intermediate wall which is positioned between the top wall and the bottom wall in the height direction, the top wall and the intermediate wall are provided with two opposite wall surfaces which limit a butt joint cavity positioned on the upper side, the bottom wall and the intermediate wall are provided with two opposite wall surfaces which limit a butt joint cavity positioned on the lower side, and the terminal grooves are formed in the two opposite wall surfaces which limit the butt joint cavity.

5. The electrical connector of claim 4, wherein: the mounting surface of the mounting portion is located below the intermediate wall in the height direction.

6. The electrical connector of claim 5, wherein: each terminal groove accommodates a first terminal and a second terminal, the first terminal is provided with a first contact part positioned at one end of the first terminal, the second terminal is provided with a second contact part positioned at one end of the second terminal, and the first contact part and the second contact part are arranged side by side.

7. The electrical connector of claim 6, wherein: the solder tails of the second terminals are aligned with the solder tails of the first terminals that are juxtaposed with their contact portions.

8. The electrical connector of claim 4, wherein: the lengths of the plurality of power terminals are shortened as the center height of the terminal groove accommodating the plurality of power terminals in the height direction is reduced.

9. The electrical connector of any one of claims 3 to 4, wherein: the number of rows of the holding parts of the power terminal in the height direction is twice the number of rows of the solder tails in the front-back direction.

10. The electrical connector of any one of claims 3 to 4, wherein: the number of rows of the holding portion of the power terminal in the height direction is equal to the number of rows of the solder tail in the front-rear direction.

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