阅读说明：本技术 电连接器 (Electrical connector ) 是由 张志辉 殷定彬 于 2020-05-28 设计创作，主要内容包括：本发明提供了一种电连接器,其具有绝缘本体及固定于绝缘本体的若干电源端子对,所述绝缘本体具有用以安装于电路板上的安装部、自所述安装部向前延伸的对接部及若干沿前后方向延伸的端子槽,所述电源端子对固定于所述绝缘本体的相应端子槽且分成沿高度方向排列的两排,每排中的每一所述电源端子对包括两片电源端子,每片电源端子包括固持在对应端子槽内的固持部、自固持部的前端向前延伸形成的至少一对接触部及自固持部的后端弯折延伸形成的至少一个焊脚,其中一排电源端子对沿自后向前的方向插装至所述绝缘本体,另一排电源端子对沿上下方向插装至绝缘本体。本发明电连接器制作方便、高度较低且电性连接方便。(The invention provides an electric connector, which comprises an insulating body and a plurality of power terminal pairs fixed on the insulating body, 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 and a plurality of terminal grooves extending along the front-back direction, the power terminal pairs are fixed in corresponding terminal grooves of the insulating body and are divided into two rows arranged along the height direction, each power terminal pair in each row comprises two power terminals, each power terminal comprises a fixing part fixed in the corresponding terminal groove, at least one pair of contact parts formed by forward extension 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, one row of power supply terminal pairs is inserted into the insulating body from back to front, and the other row of power supply terminal pairs is inserted into the insulating body from top to bottom. The electric connector is convenient to manufacture, low in height and convenient to electrically connect.)

1. An electric connector, it includes insulator and is fixed in a plurality of power supply terminal pairs of insulator, insulator has the installation department that is used for installing on the circuit board, certainly the butt-joint portion that the installation department extends forward and a plurality of terminal groove that extend along the fore-and-aft direction, power supply terminal pair is fixed in insulator's corresponding terminal groove just divides into two rows of arranging along the direction of height, every in every row every power supply terminal pair includes two power supply terminals, every power supply terminal includes the holding portion of holding in corresponding terminal inslot, certainly the front end of holding portion extends at least a pair of contact site of formation forward and certainly the rear end of holding portion is buckled and is extended at least one leg of formation, its characterized in that: one row of the power terminal pairs is inserted into the insulating body from back to front, and the other row of the power terminal pairs is inserted into the insulating body from top to bottom.

2. The electrical connector of claim 1, wherein: the holding part of each power supply terminal of the power supply terminal pair positioned on the upper row extends along the vertical direction, and the holding part of each power supply terminal of the power supply terminal pair positioned on the lower row extends along the front-back direction.

3. The electrical connector of claim 1, wherein: the electric connector is also provided with a cover body assembled and fixed on the insulating body, and after the power terminal pair is assembled in the insulating body, the cover body is assembled on the insulating body along the vertical direction and is arranged adjacent to the other row of power terminal pair.

4. The electrical connector of claim 3, wherein: the terminal grooves corresponding to the other row of power supply terminal pairs on the insulating body are arranged in an outward opening mode along the vertical direction, the cover body is provided with an inner side close to the other row of power supply terminal pairs and an outer side opposite to the inner side, and a plurality of abutting-against parts abutting against the other row of power supply terminal pairs respectively are arranged on the inner side of the cover body.

5. The electrical connector of claim 4, wherein: the lid is including the front shroud that is located the front side, the back shroud that is located the rear side and the connection board that links to each other front shroud and back shroud, the front shroud cover in the outside of butt joint portion, the back shroud cover in the outside of installation department, insulator has a plurality of spacing convex parts, and each spacing convex part is located between two adjacent terminal grooves, connection board is seted up a plurality of spacing grooves of acceping and fixing a position and corresponding spacing convex part.

6. The electrical connector of claim 1, wherein: the holding parts of the two power terminals which are arranged in pairs in the other row of power terminals are parallel and arranged at intervals along the front-back direction so as to be in interference fit with the corresponding holding grooves in the terminal grooves.

7. The electrical connector of claim 1, wherein: two power supply terminals in each power supply terminal pair are accommodated in the same terminal groove together, each power supply terminal in another row of power supply terminal pair has first horizontal part and second horizontal part that is parallel to each other, first horizontal part and second horizontal part connect respectively in the top and the bottom of holding portion.

8. The electrical connector of any one of claims 3 to 7, wherein: the cover body is provided with a plurality of heat dissipation grooves which penetrate through the cover body along the height direction and are communicated with the terminal grooves.

9. The electrical connector of any one of claims 3 to 7, wherein: the inner side of the cover body is also provided with at least one pair of buckling parts, and the insulating body is provided with locking parts which are positioned on two sides of the insulating body in the transverse direction and matched with the buckling parts.

10. The electrical connector of any one of claims 4 to 7, wherein: the inner side of the cover body is further provided with a plurality of protruding parts protruding towards the insulating body, two adjacent pressing parts are arranged at intervals along the transverse direction to form a spacing groove, and the protruding parts and the corresponding spacing grooves are arranged in a front-back direction in an aligned mode.

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with a low height.

Background

In the conventional electrical connector, in order to transmit a large current, the transmission area of the power terminal is increased to form a sheet-shaped structure, each power terminal generally has one or more contact arms extending forward from the front end of its sheet-shaped body, and the purpose of transmitting a large current is achieved by using multiple sheet-shaped power terminals arranged in the height direction.

In addition, the height of the electrical connector needs to be reduced to facilitate the electrical connection between the electrical connector and the mating component, and the fabrication and assembly of the conductive terminals with a large number of pieces are difficult. Taking an electrical connector with four power terminals arranged in the height direction as an example, according to the conventional manufacturing process, if the power terminal pair located at the upper side is first installed in the insulating body, and then the solder tails of the power terminal pair located at the lower side are bent and installed in the insulating body, when the center height of the electrical connector is set to be low, the power terminal pair located at the upper row will be difficult to bend to form the solder tails extending downwards; if the power terminals located on the upper side are folded and bent to form the downward fillets and then are mounted in the insulating body, the mounting space of the power terminal pair located on the lower side is blocked, and the power terminal pair located on the lower side cannot be mounted in the insulating body.

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

Disclosure of Invention

The invention aims to provide an electric connector which is convenient to manufacture, low in height and convenient to electrically connect.

In order to achieve the above object, the present invention provides an electrical connector, which includes an insulative housing and a plurality of pairs of power terminals fixed to the insulative housing, 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 and a plurality of terminal grooves extending along the front-back direction, the power terminal pairs are fixed in corresponding terminal slots of the insulating body and are divided into two rows arranged along the height direction, each power terminal pair in each row comprises two power terminals, each power terminal comprises a fixing part fixed in the corresponding terminal slot, at least one pair of contact parts 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, one row of the power terminal pairs is inserted into the insulating body from back to front, and the other row of the power terminal pairs is inserted into the insulating body from top to bottom.

As a further improvement of the present invention, the holding part of each power terminal of the pair of power terminals located at the upper row extends in the up-down direction, and the holding part of each power terminal of the pair of power terminals located at the lower row extends in the front-rear direction.

As a further improvement of the present invention, the electrical connector further includes a cover assembled and fixed to the insulating housing, and after the pair of power terminals is assembled into the insulating housing, the cover is assembled to the insulating housing in the vertical direction and disposed adjacent to the other row of power terminals.

As a further improvement of the present invention, the terminal groove corresponding to the other row of power terminal pairs on the insulating body is opened outward in the vertical direction, the cover body has an inner side close to the other row of power terminal pairs and an outer side opposite to the inner side, and a plurality of pressing portions respectively abutting against the other row of power terminal pairs are provided on the inner side of the cover body.

As a further improvement of the present invention, the cover body includes a front cover plate located on the front side, a rear cover plate located on the rear side, and a connecting plate connecting the front cover plate and the rear cover plate, the front cover plate covers the outer side of the abutting portion, the rear cover plate covers the outer side of the mounting portion, the insulating body has a plurality of limiting protrusions, each limiting protrusion is located between two adjacent terminal grooves, and the connecting plate is provided with a plurality of limiting grooves for receiving and positioning the corresponding limiting protrusions.

As a further improvement of the invention, the holding parts of the two power terminals arranged in pairs in the other row of power terminals are parallel and arranged at intervals along the front-back direction so as to be in interference fit with the corresponding holding grooves in the terminal grooves.

As a further improvement of the invention, two power terminals in each power terminal pair are commonly accommodated in the same terminal groove, and each power terminal in the other row of power terminal pairs has a first horizontal part and a second horizontal part which are parallel to each other, and the first horizontal part and the second horizontal part are respectively connected to the top end and the bottom end of the holding part.

As a further improvement of the present invention, the cover body has a plurality of heat dissipation grooves penetrating through it in the height direction and communicating with the terminal grooves.

As a further improvement of the present invention, at least a pair of buckling parts is further disposed on the inner side of the cover body, and the insulating body has locking parts located on both sides in the transverse direction thereof to be matched with the buckling parts.

As a further improvement of the present invention, the inner side of the cover body is further provided with a plurality of protruding portions protruding toward the insulating body, two adjacent pressing portions are arranged at intervals in the transverse direction to form a spacing slot, and the protruding portions and the corresponding spacing slots are arranged in alignment in the front-rear direction.

The invention has the beneficial effects that: the electric connector has lower center height so as to be electrically connected with the butt joint element, one row of power supply terminal pairs of the electric connector is inserted into the insulating body from back to front, and the other row of power supply terminal pairs is inserted into the insulating body from top to bottom, so that the trouble caused by the two rows of power supply terminal pairs when the two rows of power supply terminal pairs are installed in the same direction is avoided, the manufacturing difficulty and the manufacturing cost of a product are reduced, the purposes that the electric connector can transmit large current, and the whole height and the center height are lower are achieved, and the problem that the multi-row power supply terminal is difficult to assemble is solved.

Drawings

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

Fig. 2-3 are views of the electrical connector of fig. 1 from another perspective.

Fig. 4 is a partially exploded view of the electrical connector shown in fig. 1.

Fig. 5 is a further exploded view of the electrical connector shown in fig. 4.

Fig. 6 is a partial assembly view of the electrical connector shown in fig. 5.

Fig. 7 to 8 are sectional views of the electrical connector shown in fig. 1.

Fig. 9 is another perspective view of the dielectric body of the electrical connector of fig. 5.

Fig. 10 is a view of the cover of the electrical connector of fig. 5 from another perspective.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.

Referring to fig. 1 to 10, an electrical connector 100 according to a preferred embodiment of the present invention is shown, wherein the electrical connector 100 includes an insulative housing 1 and a plurality of power terminal pairs 2 fixed to the insulative 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.

Referring to fig. 1 to 9, in the present invention, 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, and a plurality of terminal slots 13 extending in a front-back direction, a partition 14 is disposed between every two adjacent terminal slots 13, each terminal slot 13 extends in the front-back direction and penetrates the insulating body 1, and each partition 14 also extends in the front-back direction.

In addition, the insulating main body 1 has two rows of terminal grooves 13 arranged at intervals in the height direction, the terminal grooves 13 positioned in the upper row are arranged to be opened upward while being opened outward in the front-rear direction, and the terminal grooves 13 positioned in the lower row are arranged to be opened outward only in the front-rear direction.

In the present invention, the mounting portion 11 has a mounting surface 110 for mounting on a circuit board, and the mounting surface 110 is not lower than a horizontal center plane C-C' of the mating portion 12 in a height direction so as to reduce the overall height of the electrical connector 100; and the electrical connector 100 has a lower center height for electrical connection with the mating component.

Further, in the present embodiment, the mounting portion 11 has a bearing portion 112 and a pair of extending portions 113 located on both sides of the bearing portion 112 in the lateral direction, and the terminal grooves 13 in the lower row are located below the bearing portion 112 in the height direction. The supporting portion 112 is a plate-shaped body and has a plurality of spacing portions 1121 arranged along a transverse direction, each of the extending portions 113 extends backward and protrudes out of the supporting portion 112, and the mounting surface 110 is a bottom surface of the extending portion 113.

Each of the extending portions 113 has a receiving groove 1132 which is formed by being recessed downward from a top surface thereof, the bearing portion 112 has a pair of locking portions 1123 which are formed by being protruded outward from both sides in a transverse direction thereof, and the locking portions 1123 are protruded into the receiving grooves 1132 at the corresponding sides.

The docking portion 12 has a front end wall 121 located at a front end thereof and extending laterally, the front end wall 121 being located at an upper side of the docking portion 12 and connected to the partition 14, the partition 14 being disposed perpendicular to the front end wall 121 and exposed to the upper side of the docking portion 12; in addition, each of the barriers 14 has a limiting protrusion 141 protruding upwards, so that a plurality of limiting protrusions 141 are formed on the upper side of the insulating body 1, and each of the limiting protrusions 141 is located between two adjacent terminal grooves 13.

In the present embodiment, the terminal groove 13 includes a first groove portion 131 and a second groove portion 132 communicating with each other, wherein the first groove portion 131 is located at the front side to receive the contact portion 202 of the pair of power terminals 2, and the second groove portion 132 is located at the rear side to receive and position the holding portion 201 of the pair of power terminals 2. The second slot portion 132 of the upper row of terminal slots 13 includes two pairs of holding slots 1321 opened on both sides in the transverse direction, two holding slots 1321 in each pair of holding slots 1321 are oppositely arranged in the transverse direction, two holding slots 1321 on the same side are arranged at intervals in the front-rear direction, and each holding slot 1321 is long and extends in the height direction.

Referring to fig. 2 to 8, the power terminal pairs 2 are fixed to the corresponding terminal slots 13 of the insulating housing 1 and are divided into two rows arranged in the height direction, that is, the power terminal pairs at the upper row and the power terminal pairs at the lower row. In the present embodiment, the power supply terminal pairs 2 are arranged in pairs in the height direction to constitute one group, and the two power supply terminal pairs 2 in each group of power supply terminal pairs are arranged oppositely and at intervals in the height direction.

Each of the power terminal pairs 2 in each row includes two power terminals 21, each power terminal includes a holding portion 201 held in the corresponding terminal slot 13, at least one pair of contact portions 202 formed by extending forward from a front end of the holding portion 201, and at least one solder leg 203 formed by bending and extending from a rear end of the holding portion 201.

Each of the contact portions 202 is curved and protrudes toward a horizontal center plane C-C' of the docking portion 12. The contact parts 202 of the two power terminals 21 in each power terminal pair 2 are arranged in a row along the height direction, and the contact parts 202 of the two power terminals 21 are alternately and circularly arranged along the transverse direction. Of course, the contact portions 202 of the two power terminals 21 in each power terminal pair 2 may be arranged in a staggered manner in the height direction, as long as the contact portions 202 of the two power terminals 21 in each power terminal pair 2 are located on the same horizontal plane in the height direction when the mating element is mated.

In assembling, one row of the power terminal pairs 2a is inserted into the insulating body 1 from the rear to the front, the other row of the power terminal pairs 2b is inserted into the insulating body 1 in the up-down direction, and the one row of the power terminal pairs 2a is located at the lower side of the carrying section 112 and the other row of the power terminal pairs 2b is located at the upper side of the carrying section 112.

Further, in the present embodiment, the one row of the power terminal pairs 2a is a power terminal pair located in a lower row, and the other row of the power terminal pairs 2b is a power terminal pair located in an upper row. The holding portion 201 of each power terminal 21 of the power terminal pair 2 located at the upper row extends in the vertical direction, and the holding portion 201 of each power terminal 21 of the power terminal pair 2 located at the lower row extends in the front-rear direction. In another embodiment of the present invention, the lower row of the power supply terminal pairs 2 may be inserted into the insulating main body 1 in the vertical direction, and the upper row of the power supply terminal pairs 2 may be inserted into the insulating main body 1 in the front-rear direction.

The holding portions 201 of the two paired power terminals 21 in the other row of power terminal pair 2b are parallel and spaced apart in the front-rear direction to be in interference fit with the corresponding holding grooves 1321 in the terminal groove 13, and preferably, the holding portions 201 are disposed perpendicular to the mounting surface 110 so that the other row of power terminal pair 2b is smoothly mounted in the insulating body 1.

The two power terminals 21 of each power terminal pair 2 are commonly accommodated in the same terminal groove 13, each power terminal 21 of the other row of power terminal pairs 2b has a first horizontal portion 204 and a second horizontal portion 205 which are parallel to each other, and the first horizontal portion 204 and the second horizontal portion 205 are respectively connected to the top end and the bottom end of the holding portion 201. The first and second horizontal portions 204, 205 are both sheet-shaped structures, the solder tails 203 are formed by bending and extending downward from the rear end of the first horizontal portion 204, and the solder tails 203 of each row of the power terminal pairs 2 are arranged in two rows aligned along the transverse direction.

In one row of the power terminal pairs 2a, the holding portion 201 of each power terminal 21 is formed by extending backward from the contact portion 202 thereof, the holding portion 201 is a sheet-shaped structure extending along the horizontal direction, each power terminal 21 further has a first bending portion 206 formed by bending and extending upward from the rear end of the holding portion 201 thereof and a second bending portion 207 formed by bending and extending backward from the top end of the first bending portion 206, the soldering leg 203 thereof is formed by bending downward from the rear end of the second bending portion 207, and the first bending portion 206 is obliquely extended and arranged at a certain angle with the height direction. The holding portions 201 of the two power terminals 21 in each power terminal pair 2a are stacked in the height direction, and the second bending portions 207 are stacked in the height direction.

In the illustrated embodiment of the present invention, each power terminal 21 has two contact portions 202 formed extending forward, and in other embodiments, each power terminal 21 may have three or more contact portions 202.

Referring to fig. 1 to 8 in combination with fig. 10, the electrical connector 100 further includes a cover 3 assembled and fixed to the insulating housing 1, and after the power terminal pair 2 is assembled into the insulating housing 1, the cover 3 is assembled to the insulating housing 1 along a vertical direction and is disposed adjacent to the other row of power terminal pairs 2b, so as to isolate the power terminal pair 2 from the outside at an upper side thereof and to assist in fixing the power terminal pair 2.

The terminal groove 13 of the insulating body 1 corresponding to the other row of power terminal pairs 2b is opened outward in the vertical direction, the cover 3 has an inner side close to the other row of power terminal pairs 2b and an outer side opposite to the inner side, and the inner side of the cover 3 is provided with a plurality of pressing portions 301 respectively abutted to the other row of power terminal pairs 2 b.

The cover body 3 comprises a front cover plate 31 positioned on the front side, a rear cover plate 32 positioned on the rear side and a connecting plate 34 connecting the front cover plate 31 and the rear cover plate 32, wherein the front cover plate 31 covers the outer side of the butt joint part 12, the rear cover plate 32 covers the outer side of the mounting part 11, and the connecting plate 34 is provided with a plurality of limiting grooves 341 accommodating and positioning corresponding limiting convex parts 141.

Meanwhile, the cover 3 has a plurality of heat dissipation grooves 302 penetrating therethrough in the height direction and communicating with the terminal grooves 13. Further, two rows of heat dissipation slots 302 are formed on the front cover plate 31, and two rows of heat dissipation slots 302 are also formed on the rear covering plate 32. The rear end of the cover body 3 is further provided with a plurality of recessed portions 3031 formed by downwardly recessing from the top surface of the cover body and heat dissipation holes 3032 communicated with the corresponding recessed portions 3031, each recessed portion 3031 is arranged corresponding to two heat dissipation holes 3032, and a through type heat dissipation structure is further formed at the rear end of the cover body 3.

In addition, at least a pair of buckling parts 304 are further disposed on the inner side of the cover 3, and the insulating main body 1 has locking parts 1123 located on both sides in the transverse direction thereof to be engaged with the buckling parts 304.

The inner side of the cover 3 is further provided with a plurality of protruding portions 305 protruding toward the insulating body 1, two adjacent pressing portions 301 are arranged at intervals along the transverse direction to form a spacing groove 306, the protruding portions 305 and the corresponding spacing grooves 306 are arranged in an aligned manner in the front-rear direction, and each protruding portion 305 is located between two adjacent power terminal pairs 2, so that not only can the structural strength of the cover 3 be increased, but also the arc creeping distance between the power terminals 21 can be increased. In this embodiment, the cover 3 has two sets of the protruding portions 305 arranged at intervals in the front-rear direction, the two sets of protruding portions 305 are arranged in alignment in the front-rear direction, and at least one heat dissipation groove 302 is interposed between two adjacent protruding portions 305 in the set of protruding portions 305 located at the rear side.

During assembly, the welding feet 203 of the lower row of power supply terminal pair 2 are bent to form, then the power supply terminals are combined and stacked together and inserted into the insulating body 1 along the front-back direction, then the two power supply terminals 21 of the upper row of power supply terminal pair are sequentially inserted into the insulating body 1 along the height direction, of course, the two power supply terminals 21 of the upper row of power supply terminal pair 2 can also be combined and stacked together and then jointly inserted into the insulating body 1, and finally the cover body 3 is assembled to the upper side of the insulating body 1 along the direction from top to bottom so as to cover and further fix the power supply terminal pair 2, so that automatic production can be realized, the production efficiency is improved, and the manufacturing difficulty is reduced.

Referring to fig. 1 to 6, in the present embodiment, the electrical connector 100 further includes a plurality of signal terminals 4 located on one side of the power terminal pair 2 along the transverse direction, and a base 5 assembled to the insulating body 1 and fixing pins 43 of the signal terminals 4.

The electric connector 100 of the invention has lower center height so as to be electrically connected with a butt-joint element, one row of power terminal pairs 2a of the electric connector 100 is inserted into the insulating body 1 along the direction from back to front, and the other row of power terminal pairs 2b is inserted into the insulating body 1 along the up-down direction, thus avoiding the trouble caused by the two rows of power terminal pairs 2 when being installed in the same direction, reducing the manufacturing difficulty and the manufacturing cost of products, further realizing the purpose that the electric connector 100 can transmit large current, and the whole height and the center height are lower, and simultaneously solving the problem that a plurality of rows of power terminal pairs are difficult to assemble.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.