TWI741963B - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector, which comprises an insulative housing, a plurality of contact sets and a cover. The insulative housing defines a plurality of receiving slots along a front-and-back direction, and the receiving slots are opened to one side in a height direction perpendicular to the front-and-back direction. Each contact set comprises a first power contact and a second power contact, each one of the first power contact and the second power contact has a retaining portion, at least one contacting portion extending forwards from one end of the retaining portion and at least one soldering leg extending from the other end of the retaining portion. The retaining portions of the first power contact and the second power contact are arranged in the height direction, the contacting portions of the first power contact and the second power contact are arranged in a transverse direction, and the solder legs are arranged in the front-and-back direction. The cover is provided at the opening position of the receiving slots along the height direction, and the first power contact and the second power contact are fixed between the cover and an inner bottom wall of the relative receiving slot opposite to the cover.

Description

Electrical connector

The invention relates to an electrical connector, in particular to an electrical connector with a relatively low height.

In order to transmit larger currents, the conventional electrical connector increases the transmission area of the power terminal to make it a sheet structure. Each power terminal usually has one or more contact arms extending forward from the front end of the sheet body. At the same time, multi-chip power terminals arranged in the height direction are used to achieve the purpose of transmitting more current.

In addition, in order to make the electrical connection between the electrical connector and the mating element more convenient, it is necessary to reduce the height of the electrical connector. At this time, the production and assembly of conductive terminals with a large number of pieces becomes more difficult. Take the electrical connector with four power terminals arranged in the height direction as an example. According to the traditional manufacturing process, if the power terminal pair on the upper side is installed into the insulating body, the solder feet of the power terminal pair on the lower side are folded After bending, it is put into the insulating body. When the center height of the electrical connector is set to be low, the power terminal pair located in the upper row will be difficult to bend to form a downwardly extending solder foot; if the power terminal located on the upper side is folded in half first After bending to form downward welding feet and then inserting it into the insulating body, it will block the installation space of the power terminal pair located on the lower side and cause the power terminal pair on the lower side to be unable to be installed in the insulating body.

In view of this, it is indeed necessary to further improve the conventional electrical connector to solve the above-mentioned problems.

The purpose of the present invention is to provide an electrical connector that is convenient to manufacture, low in height, and convenient to electrically connect.

In order to achieve the above objective, the present invention provides an electrical connector, which includes an insulating body, a terminal group and a cover. , The aforementioned terminal set includes a first power terminal and a second power terminal. Both the first and second power terminals have a holding portion, a contact portion extending forward from one end of the holding portion, and a solder foot extending from the other end of the holding portion , The holding parts of the aforementioned first power terminal and the second power terminal are arranged along the height direction of the insulating body, the contact parts of the first power terminal and the second power terminal are arranged horizontally along the insulating body, and the welding feet are arranged in the front and rear direction. , Wherein the cover body is set at the opening position of the terminal slot along the height direction, and the first power terminal and the second power terminal are fixed between the cover body and the inner bottom wall of the terminal slot opposite to the cover body.

In order to achieve the above object, the present invention also provides an electrical connector, which includes an insulating body and a terminal set. The terminal set is mounted to the terminal groove along the height direction of the insulating body, and includes a first power terminal and a second power terminal. The contact part extending forward from one end of the holding part and the welding foot extending from the other end of the holding part. The holding parts of the first power terminal and the second power terminal are arranged along the height direction of the insulating body. The contact parts of the power terminals are arranged horizontally along the insulating body, and the welding feet are arranged in a front-to-back direction.

As a further improvement of the present invention, the electrical connector further has a cover that covers the opening position of the terminal groove in the height direction after the terminal group is installed in the terminal groove.

As a further improvement of the present invention, the aforementioned electrical connector further has another terminal group inserted into the aforementioned insulating body in the front-rear direction, and the aforementioned other terminal group includes a third power terminal and a fourth power terminal, and the aforementioned third power terminal The holding parts of the fourth power terminal and the fourth power terminal are arranged along the height direction of the insulating body, the contact parts of the third power terminal and the fourth power terminal are arranged horizontally along the insulating body, and the welding feet are arranged in a front-to-back direction.

In order to achieve the above objective, the present invention also provides an electrical connector, which includes an insulating body, a power terminal and a cover. , The bottom of the mounting part forms a mounting surface for mounting on the circuit board, the mounting surface is higher than the bottom surface of the mating part in the height direction of the insulating body, and the top surface of the mating part is lower than the top of the mounting part The aforesaid docking portion and the mounting portion are correspondingly provided with a terminal slot that is open to one side in the height direction; the cover is provided at the opening position of the terminal slot along the height direction, and has a corresponding setting for the docking portion The front cover plate and the rear cover plate corresponding to the aforementioned mounting part are provided; the aforementioned power terminal has a holding part fixed between the aforementioned cover plate and the bottom wall of the terminal groove, a contact part extending from one end of the holding part to the mating cavity, and the other end of the self-holding part Extend the solder feet of the aforementioned insulating body.

As a further improvement of the present invention, the power terminals include a first row of power terminals and a second row of power terminals, the first row of power terminals are inserted into the insulating body in a back-to-front direction, and the second row of power terminals It is assembled into the open terminal groove of the aforementioned insulating body along the height direction.

As a further improvement of the present invention, the holding portions of the second row of power terminals extend in the height direction, and the holding portions of the first row of power terminals extend in the front-to-rear direction.

As a further improvement of the present invention, each of the aforementioned power terminals has a first horizontal portion and a second horizontal portion that are parallel to each other and spaced along the height direction, the aforementioned insulating body has a bearing wall extending in the lateral direction, and the aforementioned first and second The first horizontal portions of the two rows of power terminals are respectively arranged on both sides of the supporting wall in the height direction.

As a further improvement of the present invention, in the aforementioned height direction, the first horizontal portion of the row of power terminals on the lower side is not lower than the second horizontal portion of the row of power terminals on the upper side.

As a further improvement of the present invention, the cover body further has a connecting plate connecting the front cover plate and the rear cover plate, and the insulating body has a plurality of limiting protrusions, and each limiting protrusion is located in two adjacent terminal slots. In between, the aforesaid connecting plate is provided with a plurality of limiting grooves for accommodating and positioning the corresponding limiting protrusions.

Compared with the prior art, the electrical connector of the present invention has a lower center height so as to be electrically connected to the mating element, and the terminal group of the electrical connector is inserted into the aforementioned insulating body along the up and down direction, which reduces the assembly difficulty and production of the product Cost, to achieve the purpose of the electrical connector can transmit large currents, the overall height and the center height are low, and solve the problem that the multi-piece power terminal is difficult to assemble.

Please refer to the first to tenth figures for a preferred embodiment of the electrical connector 100 of the present invention. The electrical connector 100 includes an insulating body 1 and a terminal set 2b fixed to the insulating body 1. For ease of description, the following description regards the butt end of the electrical connector 100 as the front end, and the other end opposite to the butt end as the back end. The butt direction, meanwhile, defines one direction perpendicular to the front and rear direction as the transverse direction, and the other direction perpendicular to the front and back direction as the height direction. In this embodiment, the dimension of the aforementioned insulating body 1 in the transverse direction is greater than its height The size in the front and rear directions.

Please refer to Figures 1 to 9, in the present invention, the aforementioned insulating body 1 has a mounting portion 11 for mounting on a circuit board (not shown), and a mating portion extending forward from the aforementioned mounting portion 11 12 and a plurality of terminal slots 13 extending in the front-to-rear direction. The aforementioned terminal slots 13 are open to one side along the height direction perpendicular to the front-to-rear direction. A barrier 14 is provided between every two adjacent terminal slots 13, each The aforementioned terminal groove 13 extends in the front-rear direction and penetrates the aforementioned insulating body 1, and each of the aforementioned partitions 14 also extends in the front-rear direction.

In addition, the aforementioned insulating body 1 has two rows of terminal grooves 13 spaced apart along the height direction. The aforementioned terminal grooves 13 located in the upper row are opened to the outside in the front-to-rear direction and are also opened upwards. The terminal grooves 13 located in the lower row are only Open and set outwards along the front and back direction. The docking portion 12 and the mounting portion 11 are correspondingly provided with a plurality of the aforementioned terminal grooves 13 that are open to one side in the height direction. In this embodiment, the docking portion 12 and the mounting portion 11 are correspondingly provided with upward openings. A plurality of the aforementioned terminal slots 13 in the upper row are provided.

In the present invention, the mounting portion 11 has a mounting surface 110 for mounting on the circuit board. In the height direction, the mounting surface 110 is not lower than the horizontal center plane C-C' of the mating portion 12 to reduce electrical power. The overall height of the connector 100; and the electrical connector 100 has a relatively low center height so as to be electrically connected to the mating element. The mounting surface 110 is higher than the bottom surface 121 of the mating portion 12 in the height direction of the insulating body 1, and the top surface 122 of the mating portion 12 is lower than the top surface 114 of the mounting portion 11.

Further, in this embodiment, the mounting portion 11 has a bearing wall 112 and a pair of extension portions 113 located on both sides of the bearing wall 112 in the transverse direction. In the height direction, the terminal slot 13 in the lower row is located in the bearing wall 112. Below the wall 112. The supporting wall 112 is plate-shaped as a whole and has a plurality of spacers 1121 arranged in the transverse direction. Each of the extending portions 113 extends rearward and protruding from the supporting wall 112, and the mounting surface 110 is the bottom surface of the extending portion 113.

Each of the aforementioned extension portions 113 has a receiving groove 1132 recessed downwardly from its top surface, and the aforementioned bearing wall 112 has a pair of locking portions 1123 protruding outward from both sides in the transverse direction, and the aforementioned locking portions 1123 It protrudes into the receiving slot 1132 on the corresponding side.

The docking portion 12 is formed with a docking cavity 120 that opens forward and has a front end wall 121 located at its front end and extending laterally. The front end wall 121 is located above the docking portion 12 and is connected to the partition 14 which is vertical. It is provided on the front end wall 121 and exposed on the upper side of the mating portion 12; in addition, each of the partitions 14 has a limiting protrusion 141 protruding upward, so that a plurality of limiting protrusions are formed on the upper side of the insulating body 1 Each of the aforementioned limiting protrusions 141 is located between two adjacent terminal slots 13.

In this embodiment, the aforementioned terminal groove 13 includes a first groove portion 131 and a second groove portion 132 that are connected, wherein the first groove portion 131 is located on the front side to receive the contact portion 202 of the terminal set 2b, and the second groove The portion 132 is located on the rear side to receive and position the holding portion 201 of the aforementioned terminal set 2b. The second groove portion 132 of the upper row of terminal grooves 13 includes two pairs of holding grooves 1321 opened on both sides in the transverse direction. The two retaining grooves 1321 are arranged at intervals along the front and back direction, and each of the aforementioned retaining grooves 1321 is in a long strip shape extending along the height direction.

Please refer to the second to eighth figures, the aforementioned terminal group 2b includes a first power terminal and a second power terminal. The extended contact portion 202 and the solder foot 203 extending from the other end of the holding portion 201, the holding portions 201 of the first power terminal and the second power terminal are arranged along the height direction of the insulating body 1, the first power terminal and the second power terminal The contact portions 202 of the power terminals are arranged laterally along the aforementioned insulating body 1, and the solder pins 203 are arranged along the front and rear directions.

In the embodiment shown in the present invention, the aforementioned holding portion 201 is held in the corresponding terminal groove 13, at least one pair of the aforementioned contact portion 202 extends forward from the front end of the aforementioned holding portion 201, and at least one aforementioned solder foot 203 extends from the aforementioned holding portion The rear end of 201 is bent and extended.

Each of the aforementioned contact portions 202 is curved and protrudes toward the horizontal center plane CC′ of the aforementioned mating portion 12. The contact portions 202 of the two power terminals 21 in each of the aforementioned terminal groups 2b are arranged in a row along the height direction, and the plurality of contact portions 202 of the aforementioned two power terminals 21 are alternately arranged in the transverse direction. Of course, the contact portions 202 of the two power terminals 21 in each of the aforementioned terminal groups 2b can also be staggered in the height direction. The contact portion 202 may be on the same horizontal surface along the height direction.

The aforementioned electrical connector 100 further has another terminal group 2a inserted into the aforementioned insulating body 1 in the front-rear direction, and the aforementioned other terminal group 2a includes a third power terminal and a fourth power terminal, and a third power terminal and a fourth power terminal. Each of the pieces also includes a holding portion 201, a contact portion 202 extending from one end of the holding portion 201 to the mating cavity 120, and a solder foot 203 extending from the other end of the holding portion 201 of the aforementioned insulating body 1. The holding portions 201 of the aforementioned third and fourth power terminals are arranged along the height direction of the insulating body 1, and the contact portions 202 of the aforementioned third and fourth power terminals are arranged laterally along the aforementioned insulating body 1. 203 is arranged in a row along the front and back direction.

In this embodiment, the aforementioned terminal set 2b and the other terminal set 2a are fixed to the corresponding terminal groove 13 of the aforementioned insulating body 1, and are arranged oppositely and spaced apart in the height direction. The first row of power terminals located on the lower side constitutes the aforementioned other The terminal group 2a and the second row of power terminals located on the upper side constitute the aforementioned terminal group 2b.

Further, in this embodiment, the holding portion 201 of each power terminal 21 of the aforementioned terminal set 2b on the upper side extends in the up and down direction, and the holding portion 201 of each power terminal 21 of the terminal set 2a on the lower side runs forward and backward. Direction extension. In other embodiments of the present invention, the terminal set 2a on the lower side may be inserted into the insulating housing 1 in the vertical direction, and the terminal set 2a on the upper side may be inserted into the insulating housing 1 in the front-rear direction.

The holding portions 201 of the two power terminals 21 in the aforementioned terminal set 2b are parallel and spaced in the front-to-rear direction to interfere with the corresponding holding grooves 1321 in the terminal groove 13. Preferably, the aforementioned holding portions 201 are perpendicular to the aforementioned mounting surface 110 It is arranged so that the terminal group 2b can be smoothly installed in the insulating body 1.

The first and second power terminals 21 in each terminal set 2 are jointly received in the same terminal slot 13. Each power terminal 21 in the aforementioned terminal set 2b has a first horizontal portion 204 and a second horizontal portion that are parallel to each other 205. The first horizontal portion 204 and the second horizontal portion 205 are respectively connected to the top and bottom ends of the holding portion 201. The first and second horizontal portions 204, 205 are both sheet-like structures. The solder feet 203 are formed by bending downwards from the rear end of the first horizontal portion 204, and the solder feet 203 of the terminal set 2b are arranged along the Two rows aligned horizontally.

In the aforementioned other terminal group 2a, the holding portion 201 of each power terminal 21 is formed extending backward from its contact portion 202. The aforementioned holding portion 201 is a sheet-like structure extending in the horizontal direction, which is also referred to as another terminal group 2a. The second horizontal portion of the power terminal 21, each of the aforementioned power terminals 21 further has a first bending portion 206 formed by bending upward from the rear end of the holding portion 201 and bending backward from the top of the aforementioned first bending portion 206 The extended second bending portion 207 is formed by bending the welding leg 203 downward from the rear end of the second bending portion 207. The first bending portion 206 extends obliquely at a certain angle to the height direction. The bent portion 207 extends in the horizontal direction and can also be referred to as the first horizontal portion of the power terminal 21 in the other terminal set 2a. The holding portions 201 of the two power terminals 21 in each other terminal group 2a are stacked in the height direction, and the second bent portions 207 are stacked in the height direction. In the aforementioned height direction, the first horizontal portion of the row of power terminals on the lower side is not lower than the second horizontal portion of the row of power terminals on the upper side, in this embodiment, that is, the other terminal group 2a The first horizontal portion (that is, the second bent portion 207) is not lower than the second horizontal portion 205 of the terminal set 2a.

In the embodiment shown in the present invention, each power terminal 21 has two contact portions 202 formed extending forward. In other embodiments, each power terminal 21 may also have one, three or more contacts.部202。 Department 202.

When assembling, the other terminal set 2a pair is inserted into the insulating body 1 in a backward-to-front direction, the terminal set 2b is inserted into the insulating body 1 in the up-down direction, and the terminal set 2b and the other another The first horizontal portions of the terminal group 2a are respectively arranged on both sides of the aforementioned bearing wall 112 in the aforementioned height direction. In this embodiment, the aforementioned other terminal group 2a is located on the lower side of the aforementioned bearing wall 112, and the aforementioned terminal group 2b is located on the aforementioned The upper side of the bearing wall 112.

Please refer to the first to eighth figures in combination with the tenth figure. The aforementioned electrical connector 100 also has a cover 3 assembled and fixed to the aforementioned insulative housing 1. When the aforementioned terminal set 2b and another terminal set 2a are installed After the insulative housing 1, the cover 3 is assembled to the insulative housing 1 along the up and down direction, and is arranged adjacent to the terminal set 2b, and the holding portion 201 of the power terminal is fixed to the inner bottom wall 134 of the cover plate 3 and the terminal slot 13 In between, the inner bottom wall 134 is the wall surface where the terminal groove 13 and the cover 3 are opposed to each other, which further isolates the cover 3 from the outside on the upper side of the terminal group 2b, and assists in fixing the terminal group 2b. .

The terminal groove 13 on the insul A plurality of pressing parts 301 respectively contacting the aforementioned terminal group 2b are provided on the inner side.

The cover 3 is arranged to cover the opening position of the terminal slot 13 in the height direction, and includes a front cover 31 located on the front side, a rear cover 32 located on the rear side, and a connecting plate connecting the front cover 31 and the rear cover 32 34. The front cover 31 is provided corresponding to the docking portion 12 and covers the outer side of the docking portion 12, the rear cover 32 is provided corresponding to the mounting portion 11 and covers the outer side of the mounting portion 11, and the adapter plate 34 is provided with A plurality of locating grooves 341 corresponding to the locating convex portion 141 are accommodated and positioned.

In addition, the cover body 3 has a plurality of heat dissipation grooves 302 penetrating through it in the height direction and communicating with the terminal groove 13. Furthermore, the front cover plate 31 is provided with two rows of heat dissipation grooves 302, and the back cover plate 32 is also provided with two rows of heat dissipation grooves 302. The cover body 3 is further provided with a plurality of recesses 3031 recessed downwardly from its top surface at its rear end and heat dissipation holes 3032 communicating with the corresponding recesses 3031, each of the aforementioned recesses 3031 corresponds to the two aforementioned heat dissipation holes 3032 Is provided, and further a through-type heat dissipation structure is formed at the rear end of the aforementioned cover 3.

In addition, at least a pair of buckle portions 304 are provided on the inner side of the aforementioned cover 3, and the aforementioned insulating body 1 has locking portions 1123 located on both sides in the transverse direction to cooperate with the aforementioned buckle portions 304.

The inner side of the cover 3 is also provided with a plurality of protrusions 305 protruding toward the insul The aforementioned spacing grooves 306 are aligned in the front-to-rear direction, and each of the aforementioned protrusions 305 is located between two adjacent aforementioned terminal sets 2b, which not only increases the structural strength of the cover 3, but also increases the arc between the power terminals 21 Crawling distance. In this embodiment, the aforementioned cover 3 has two sets of the aforementioned protrusions 305 arranged at intervals in the front-rear direction, and the two sets of protrusions 305 are aligned in the front-rear direction, and are located in a group of the protrusions 305 on the rear side, adjacent to each other. At least one aforementioned heat dissipation groove 302 is sandwiched between the two protrusions 305.

When assembling, the solder feet 203 of the other terminal set 2a are bent and formed, and then stacked together to be inserted into the aforementioned insulating body 1 along the front and rear directions, and then the two power terminals 21 in the terminal set 2b are sequentially arranged along the height direction. Insert into the aforementioned insulating body 1. Of course, two power terminals 21 in the terminal set 2a can also be combined and stacked together and then inserted together into the aforementioned insulating body 1, and finally the aforementioned cover 3 is moved from top to bottom. The direction is assembled to the opening position of the terminal slot on the upper side of the insulating body 1 to cover and further fix the terminal set 2b, which can realize automated production, improve production efficiency, and reduce manufacturing difficulty.

Please refer to the first to sixth figures. In this embodiment, the aforementioned electrical connector 100 further has a plurality of signal terminals 4 located on one side of the aforementioned power terminal 21 in the lateral direction, and is assembled in the aforementioned insulating body 1. The base body 5 for fixing the pins 43 of the aforementioned signal terminal 4.

The electrical connector 100 of the present invention has a low center height so as to be electrically connected to the mating element, and the aforementioned other terminal set 2a of the electrical connector 100 is inserted into the aforementioned insulating body 1 in a backward-to-front direction, and the aforementioned terminals The group 2b pair is inserted into the aforementioned insulating body 1 along the up and down direction to avoid the trouble caused to each other when the two rows of power terminals 21 are installed in the same direction, reduce the production difficulty and production cost of the product, and realize that the electrical connector 100 can transmit large current , The overall height and center height are low, and the problem of difficult assembly of multi-piece power terminals is solved at the same time.

In particular, it should be pointed out that for those of ordinary skill in the art, equivalent changes made to the present invention under the teaching of the present invention should still be included in the claimed scope of the patent application of the present invention.

100: electrical connector 1: Insulating body 11: Installation Department 110: mounting surface 112: Carrying Wall 1121: Spacer 1123: Locking part 113: Extension 1132: Containment Slot 12: Docking Department 121: front wall 13: terminal slot 131: The first groove 132: second groove 1321: holding slot 134: inner bottom wall 14: compartment 141: Limit convex 2a: Another terminal group 2b: terminal group 201: Holding Department 202: Contact 203: Solder foot 204: The first horizontal part 205: The second horizontal part 206: The first bending part 207: The second bending part 21: Power terminal 3: cover body 301: Pressure Department 302: heat sink 3031: Depressed part 3032: cooling holes 304: buckle part 305: protruding part 306: Interval slot 31: Front cover 32: rear cover 34: connection board 341: Limit Slot 4: Signal terminal 43: pin 5: Seat

The first figure is a three-dimensional assembly diagram of the first embodiment of the electrical connector of the present invention. The second to third figures are views from another perspective of the electrical connector shown in the first figure. The fourth figure is a partial exploded view of the electrical connector shown in the first figure. Figure 5 is a further exploded view of the electrical connector shown in Figure 4. The sixth figure is a partial assembly diagram of the electrical connector shown in the fifth figure. Figures 7 to 8 are cross-sectional views of the electrical connector shown in Figure 1. Figure 9 is a view from another perspective of the insulating body of the electrical connector shown in Figure 5. Figure 10 is a view from another perspective of the cover of the electrical connector shown in Figure 5.

100: electrical connector

11: Installation Department

112: Carrying Wall

1121: Spacer

1132: Containment Slot

114, 122: top surface

121: front wall

1321: holding slot

134: inner bottom wall

14: compartment

2b: terminal group

201: Holding Department

202: Contact

204: The first horizontal part

205: The second horizontal part

3: cover body

3031: Depressed part

3032: cooling holes

31: Front cover

32: rear cover

4: Signal terminal

5: Seat

Claims (10)

An electrical connector comprising an insulating body, a terminal group and a cover. The aforementioned insulating body has a terminal groove extending in the front-to-rear direction and opening to one side along a height direction perpendicular to the front-to-rear direction. The terminal group includes a first power terminal And the second power terminal, the first power terminal and the second power terminal both have a holding part, a contact part extending forward from one end of the holding part, and a solder foot extending from the other end of the holding part. The holding parts of the power terminals are arranged along the height direction of the insulating body, the contact parts of the first power terminals and the second power terminals are arranged horizontally along the insulating body, and the welding feet are arranged in a front-to-back direction. At the opening position of the terminal slot along the height direction, the first power terminal and the second power terminal are fixed between the cover body and the inner bottom wall of the terminal slot opposite to the cover body. An electrical connector comprising an insulating body and a terminal group. The insulating body has a terminal groove extending in the front-rear direction and opening to one side along a height direction perpendicular to the front-rear direction. The terminal group is installed along the height direction of the aforementioned insulating body To the aforementioned terminal slot, and including a first power terminal and a second power terminal, the aforementioned first power terminal and the second power terminal each have a holding portion fixed to the aforementioned terminal slot, a contact portion extending forward from one end of the holding portion, and a self The welding leg extending from the other end of the holding part, the holding parts of the first power terminal and the second power terminal are arranged along the height direction of the insulating body, and the contact parts of the first power terminal and the second power terminal are arranged horizontally along the insulating body. The cloth is set, and the welding feet are arranged in the front and back direction. The electrical connector described in item 2 of the scope of patent application, wherein the electrical connector further has a cover that covers the opening position of the terminal groove in the height direction after the terminal group is installed in the terminal groove. The electrical connector described in any one of items 1 to 3 in the scope of the patent application, wherein the electrical connector further has another terminal set inserted into the insulating body in the front-to-rear direction, and the other terminal set includes The third power terminal and the fourth power terminal, the holding parts of the third power terminal and the fourth power terminal are arranged along the height direction of the insulating body, and the contact parts of the third power terminal and the fourth power terminal are along the transverse direction of the insulating body Arrangement setting, welding feet are arranged in the front and back direction. An electrical connector includes an insulating body, a power supply terminal, and a cover. The insulating body has a front-to-back butting portion and a mounting portion. The aforesaid butting portion is formed with a forward-opening butting cavity. To the mounting surface of the circuit board, the mounting surface is higher than the bottom surface of the mating part in the height direction of the insulating body, and the top surface of the mating part is lower than the top surface of the mounting part; the mating part and the mounting part correspond to each other There is a terminal slot opened to one side in the height direction; the cover is provided at the opening position of the terminal slot in the height direction, and has a cover plate corresponding to the docking part before and after the mounting part is provided Cover plate; The power terminal has a holding portion fixed between the cover plate and the bottom wall of the terminal slot, a contact portion extending from one end of the holding portion to the mating cavity, and a solder foot extending from the other end of the holding portion to the insulating body. The electrical connector described in item 5 of the scope of patent application, wherein the aforementioned power terminal includes a first row of power terminals and a second row of power terminals, and the aforementioned first row of power terminals is inserted into the aforementioned insulating body in a back-to-front direction , The second row of power terminals is assembled into the open terminal groove of the insulating body along the height direction. The electrical connector described in item 6 of the scope of patent application, wherein the holding portions of the second row of power terminals extend in the height direction, and the holding portions of the first row of power terminals extend in the front-to-rear direction. The electrical connector as described in item 6 of the scope of patent application, wherein each of the aforementioned power terminals has a first horizontal portion and a second horizontal portion that are parallel to each other and spaced along the height direction, and the aforementioned insulating body has a load bearing extending in the lateral direction On the wall, the first horizontal portions of the first and second rows of power terminals are respectively arranged on both sides of the supporting wall in the height direction. The electrical connector described in item 8 of the scope of patent application, wherein in the aforementioned height direction, the first level of the row of power terminals on the lower side is not lower than the second level of the row of power terminals on the upper side Department. According to the electrical connector described in item 5 of the scope of patent application, the cover body further has an adapter plate connecting the front cover plate and the back cover plate, and the insulating body has a plurality of limiting protrusions, and each limiting protrusion is located at Between two adjacent terminal grooves, the aforementioned connecting plate is provided with a plurality of limit grooves for accommodating and positioning the corresponding limit protrusions.

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