TW202130050A - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector, which comprises an insulative housing and a plurality of power contact pairs. The insulative housing defines a mounting portion for fixing on a printed circuit board, a mating portion extending forwards from the mounting portion and a plurality of receiving slots extending along a front-and-back direction. The power contact pairs are divided into at least two rows in a height direction, and each power contact pair in each row includes two power contacts. Each power contact comprises a retaining portion remained in corresponding receiving slots, at least a pair of contacting portions extending forwards from a front end of the retaining portion and at least one soldering leg bending from a rear end of the retaining portion. The electrical connector further has an insulator fixing with the power contact pairs, after the power contact pairs fixed to the insulator to form a whole, then the whole is installed into the insulating housing from a rear side thereof.

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.

As shown in the first to second figures, a conventional electrical connector 900 is shown. The electrical connector 900 is mounted on the circuit board 81 and includes an insulating body 91 and a plurality of power terminal pairs 92 fixed to the insulating body 91. Each power terminal in each power terminal pair 92 has a plurality of contact parts 921 for contacting with the mating element. The four power terminals of the two power terminal pairs 92 are arranged in the height direction to transmit a larger current . When the electrical connector 900 is electrically connected to the golden finger 82 and the motherboard 83 of the power supply device, since the center height of the electrical connector 900 is relatively high, but the center height of the motherboard 83 is relatively low, an adapter element is needed. 84 to achieve electrical connection with the motherboard 83.

As mentioned above, in order to facilitate the electrical connection between the electrical connector and the mating component, it is necessary to reduce the height of the electrical connector itself, so the production and assembly of the power terminal with a large number of pieces becomes particularly difficult; in addition, the electrical connection The device 900 adopts a board mounting method, and its overall height is higher than that of a sinking board (also called a broken board) connector, which cannot achieve a low height or meet the requirements for more efficient use of space. 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 located on the upper side is installed in the insulating body, the solder feet of the power terminal pair located 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 being bent to form a downward welding leg, and then installed in the insulating body, the installation space of the power terminal pair located on the lower side will be blocked, and the power terminal pair on the lower side cannot 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 with low height and convenient electrical connection.

In order to achieve the above-mentioned object, the present invention provides an electrical connector, which includes an insulating body and a plurality of power terminal pairs fixed to the insulating body. The insulating body has a mounting portion for mounting on a circuit board. The front extending butting portion and a plurality of terminal slots extending in the front-to-back direction. The aforementioned power terminal pairs are fixed in the corresponding terminal slots of the aforementioned insulating body and are divided into at least two rows arranged in the height direction. Each aforementioned power terminal pair in each row It includes two power terminals, each power terminal includes a holding part held in a corresponding terminal slot, at least a pair of contact parts extending forward from the front end of the holding part, and at least a pair of contact parts formed by bending and extending from the rear end of the holding part. A solder foot, wherein the electrical connector further has an insulating member fixed to the outer side of the power terminal, and the pair of power terminals are fixed to the insulating member and then jointly inserted into the insulating body from the back side of the insulating body.

As a further improvement of the present invention, the mounting portion has a mounting surface for mounting on the circuit board, and in the height direction, the mounting surface is not lower than the horizontal center surface of the mating portion.

As a further improvement of the present invention, each of the aforementioned holding portions includes a first horizontal portion extending in a horizontal direction, an inclined portion formed by bending upward and backward from the rear end of the first horizontal portion, and backward from the top end of the aforementioned inclined portion The second horizontal part formed by bending and extending.

As a further improvement of the present invention, the aforementioned insulating member includes a first insulating member and a second insulating member assembled with each other, and the two rows of the aforementioned power terminal pairs are fixed to the aforementioned first and second insulating members to form a terminal module before being inserted.于The aforementioned insulating body.

As a further improvement of the present invention, the first and second insulators each have a first installation groove and a second installation groove formed by penetrating them in the front and rear directions to accommodate the holding portion, the first installation groove and the second installation groove The grooves are arranged at intervals along the height direction.

As a further improvement of the present invention, the aforementioned power terminal pairs are arranged in pairs along the height direction to form a group, and the two power terminal pairs in each group of power terminal pairs are arranged oppositely and spaced apart along the aforementioned height direction, and each aforementioned power terminal pair The plurality of contact portions of the two power terminals are alternately arranged in the transverse direction, and the solder feet of each row of the aforementioned power terminal pairs are arranged in two rows aligned in the transverse direction.

As a further improvement of the present invention, the first insulating member and the second insulating member are assembled with each other along the height direction, and one row of the aforementioned power terminal pair is assembled and fixed to the first insulating member to form a first terminal module, and the other row of the aforementioned power terminal is assembled and fixed to the first insulating member. The power terminal pair is assembled and fixed to the second insulating member to form a second terminal module.

As a further improvement of the present invention, the first and second insulating members each have a plurality of first mounting grooves arranged side by side in the transverse direction and a plurality of second mounting grooves arranged side by side in the transverse direction, and the first horizontal portion is fixed to the aforementioned In the first installation groove, the aforementioned second horizontal portion is located in the second installation groove.

As a further improvement of the present invention, the aforementioned insulating member includes a plurality of aforementioned first and second insulating members, the aforementioned first insulating member and the second insulating member are arranged in pairs, and the paired first and second insulating members are arranged oppositely And buckle with each other in the transverse direction to accommodate a group of power terminal pairs, and two power terminal pairs in each group of power terminal pairs are respectively fixed in the first and second installation grooves.

As a further improvement of the present invention, the aforementioned power terminal pairs are arranged in pairs along the height direction to form a group, the aforementioned insulating member includes a plurality of insulating blocks arranged side by side along the transverse direction, and the inclined portion of each group of the aforementioned power terminal pairs and at least part of the The first and second horizontal parts are jointly embedded and molded in one of the aforementioned insulating blocks.

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. The power terminal pair is divided into at least two rows arranged in the height direction, and each of the aforementioned power terminal pairs in each row It includes two pieces of power terminals. The pair of power terminals is fixed to the insulator and is jointly inserted into the insulating body from the back side of the insulating body, so that the power terminals arranged in a multi-piece in the height direction can be easily bent and formed. The welding feet extend downward and can be easily assembled into the insulating body.

Please refer to FIGS. 3 to 12 for the first embodiment of the electrical connector of the present invention. The electrical connector 100 includes an insulating body 1 and a plurality of power terminal pairs 2 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 3 to 5 in combination with Figures 11 to 12. In the present invention, the aforementioned insulating body 1 has a mounting portion 11 for mounting on a circuit board (not shown), The mating portion 12 extending forward from the aforementioned mounting portion 11, a plurality of terminal grooves 13 extending in the front-rear direction, and a plurality of partitions 14 extending in the front-rear direction, each of two adjacent terminal grooves 13 is provided with the aforementioned partition 14. The terminal groove 13 penetrates the insulating body 1 in the front-to-rear direction, and the partition 14 extends forward from the mounting portion 11 to the front end surface 121 of the mating portion 12.

Please refer to the fifth, eleventh and twelfth figures. In the present invention, the mounting portion 11 has a mounting surface 110 for mounting on a circuit board. In the height direction, the mounting surface 110 is not It is lower than the horizontal center plane C-C' of the aforementioned butting portion 12.

Specifically, in this embodiment, the mounting portion 11 has a bearing portion 112 at the bottom thereof and an extension portion 113 extending backward and protruding from the bearing portion 112, and the mounting surface 110 is the bottom surface of the extension portion 113. The aforementioned supporting portion 112 is plate-shaped and has a plurality of positioning holes 1121 recessed downwardly from its upper surface. Further, in this embodiment, the plurality of aforementioned positioning holes 1121 are arranged in a row along the transverse direction, and each of the aforementioned positioning holes The hole 1121 penetrates the aforementioned carrying portion 112 in the height direction.

The extension portion 113 has a guide groove 1132 that is recessed forwardly from its rear end surface, a notch 1133 communicating with the guide groove 1132, and a clamping hole 1134 communicating with the guide groove 1132. The notch 1133 The top surface of the extension portion 113 is recessed downward until it communicates with the guide groove 1132. In this embodiment, the front end surface of the notch 1133 is coplanar with the front end surface of the guide groove 1132. The groove bottom surface 1135 of the guiding groove 1132 is formed to be recessed downward, and further, the aforementioned clamping hole 1134 penetrates the aforementioned extension portion 113 downward.

In addition, the rear side of the mounting portion 11 has a first mounting surface 114 and a second mounting surface 115 spaced apart in the front-to-rear direction, and in the front-to-rear direction, the first mounting surface 114 is located on the front side of the second mounting surface 115. The rear end surface of the bearing portion 112 is located at the rear side of the aforementioned second mounting surface 115.

The mating portion 12 has a mating space 120 opened forwardly to accommodate mating components, and the terminal slot 13 is connected to the mating space 120.

Please refer to the third, eleventh and twelfth figures. In this embodiment, the aforementioned terminal groove 13 includes a first groove portion 131 and a second groove portion 132 that are communicated with each other, wherein the aforementioned first groove portion 131 is located on the front side to accommodate the contact portion 202 of the aforementioned power terminal pair 2, and the aforementioned second groove portion 132 is located on the rear side to accommodate and position the holding portion 201 of the aforementioned power terminal pair 2.

In this embodiment, the aforementioned insulating body 1 has upper and lower rows of terminal grooves 13 and a partition wall 15 formed between the upper row of terminal grooves 13 and the lower row of terminal grooves 13, and the aforementioned partition wall 15 extends along the aforementioned transverse direction. Inside the aforementioned mounting portion 11, the upper and lower row terminal slots 13 are separated. Furthermore, the partition wall 15 extends forward from the first mounting surface 114 of the mounting portion 11 but does not extend forward into the mating portion 12.

In addition, the insulating body 1 further has a plurality of limiting protrusions 16 connected to the partition wall 15, and each of the limiting protrusions 16 is formed by protruding upward or downward from the partition wall 15 and enters the corresponding terminal groove 13 . In the present invention, a row of the limiting protrusions 16 is formed on the upper and lower sides of the partition wall 15 respectively.

Please refer to Figures 3 to 9 in combination with Figures 11 and 12. The power terminal pair 2 is fixed in the corresponding terminal slot 13 of the insulating body 1 and is divided into at least two arranged in the height direction. Each power terminal pair 2 in each row includes two power terminals 21, and each power terminal 21 includes the above-mentioned holding portion 201 held in the corresponding terminal slot 13 and extending forward from the front end of the aforementioned holding portion 201. At least a pair of contact portions 202 and at least one solder foot 203 formed by bending and extending from the rear end of the holding portion 201.

The holding portion 201 is a sheet-like structure parallel to the horizontal plane, and the contact portion 202 is curved and has a contact area 2020 protruding toward the horizontal center plane CC′ of the mating portion 12. The soldering feet 203 are formed by bending and extending downward from the rear end of the holding portion 201, and the soldering feet 203 of each row of the power terminal pair 2 are arranged in two rows aligned in the transverse direction, respectively.

In this embodiment, the aforementioned power terminal pairs 2 are arranged in pairs along the height direction to form a group, and the two power source terminal pairs 2 in each group of power terminal pairs are arranged opposite and spaced along the aforementioned height direction.

The contact portions 202 of the two power terminals 21 in each power terminal pair 2 are arranged in a row along the height direction, and the plurality of contact portions 202 of the 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 power terminal pair 2 can also be staggered along the height direction, as long as the two power terminals in each power terminal pair 2 can be mated with the mating component. The contact portion 202 of 21 only needs to be on the same horizontal plane along the height direction.

Each of the aforementioned holding portions 201 includes a first horizontal portion 2011 extending in a horizontal direction, an inclined portion 2012 formed by bending upward and backward from the rear end of the aforementioned first horizontal portion 2011, and bending and extending backward from the top end of the aforementioned inclined portion 2012 Formed the second horizontal part 2013. The length of the second horizontal portion 2013 of the power terminal pair 2 located in the upper row in the front-rear direction is greater than the length of the first horizontal portion 2011 of the corresponding power terminal 21 in the front-rear direction.

In addition, each of the aforementioned holding portions 201 further has an interference portion 2014 protruding from the outer side of the aforementioned first horizontal portion 2011 or the second horizontal portion 2013. In this embodiment, the aforementioned interference portion 2014 of the power terminal pair 2 in the upper row is located outside the corresponding second horizontal portion 2013, and the aforementioned interference portion 2014 of the power terminal pair 2 located in the lower row is located in the corresponding first horizontal portion 2011 Outside.

The first horizontal portions 2011 of the two power terminals 21 in the same power terminal pair 2 are stacked in the height direction, and the second horizontal portions 2013 of the two power terminals 21 in the same power terminal pair 2 are also stacked in the height direction. There is a small gap between the inclined portions 2012 of the two power terminals 21 in the power terminal pair 2. In addition, the first horizontal portions 2011 of the two power terminals 21 of each power terminal pair 2 are installed and fixed in the same terminal groove 13 from the rear side of the mounting portion 11 forward.

In addition, each of the aforementioned power terminals 21 also has a plurality of elastic contact arms 204 extending forwardly from the front end of the holding portion 201. The aforementioned contact portions 202 are located on the front side of the corresponding contact arm 204 to contact the aforementioned mating element. The 204 passes forward through the second groove portion 132 of the aforementioned terminal groove 13 and is received in the aforementioned first groove portion 131.

In the embodiment shown in the present invention, each power terminal 21 has two contact portions 202 extending forward from its holding portion 201. In other embodiments, each power terminal 21 may also have three or more Multiple contacts 202.

As shown in Figure 12, in the direction from top to bottom, the lengths of the second horizontal portions 2013 of the four power terminals 21 in each set of power terminal pairs 2 in the foregoing front-rear direction are sequentially reduced, so that the foregoing The solder feet 203 of the four power terminals 21 are arranged in four rows in the front-to-rear direction, and the solder feet 203 of the lowermost power terminal 21 are located on the front side, and the solder feet 203 of the uppermost power terminal 21 are located on the rearmost side.

Each of the aforementioned power terminals 21 also has a plate-shaped portion 205 bent and extended downward from the rear end of the aforementioned holding portion 201, the aforementioned plate-like portion 205 is arranged parallel to the vertical surface, and the aforementioned solder foot 203 is formed from the bottom end of the aforementioned plate-like portion 205 It is formed by extending downward and extending in a vertical direction to be plugged into an external circuit board (not shown).

Please refer to Figures 3 to 9 in combination with Figures 11 to 12, the aforementioned electrical connector 100 also has an insulating member 3 fixed outside the aforementioned pair of power terminals 2, and the aforementioned pair of power terminals 2 is fixed After the aforementioned insulating member 3, they are jointly installed into the insulating body 1 from the rear side of the aforementioned insulating body 1 forwardly. Specifically, after the aforementioned power terminal pair 2 is bent and the aforementioned solder foot 203 is formed, it is then fixed in the aforementioned insulating member 3. Specifically, the aforementioned power terminal pair 2 can be fixed to the aforementioned insulating member 3 by embedding molding or assembly. In the insulating member 3, the aforementioned insulating member 3 may be a one-piece structure or a multi-piece assembled structure.

In this embodiment, the aforementioned insulating member 3 includes a first insulating member 31 and a second insulating member 32 assembled with each other, and the two rows of the aforementioned power terminal pairs 2 are fixed to the aforementioned first and second insulating members 31, 32 to form a terminal mold. After being assembled, it is inserted into the aforementioned insulating body 1.

Further, in this embodiment, the two rows of the aforementioned power terminal pairs 2 are assembled into the aforementioned first and second insulators 31 and 32 respectively from back to front; in other embodiments, the two rows of aforementioned power terminal pairs 2 are also assembled It can be embedded and molded into the first and second insulating parts 31 and 32 respectively, and then assembled into the insulating body 1 after being assembled with each other.

The first and second insulators 31 and 32 each have a first installation groove 301 and a second installation groove 302 formed by penetrating them in the front-rear direction to accommodate the holding portion 201, the first installation groove 301 and the second installation groove 302 302 is arranged at intervals along the height direction.

In the height direction, the second installation groove 302 of the aforementioned first insulator 31 is located on the upper side of the first installation groove 301, and the second installation groove 302 of the aforementioned second insulator 32 is located on the upper side of the first installation groove 301.

Specifically, in this embodiment, the aforementioned first insulating member 31 and the second insulating member 32 are assembled with each other along the height direction, and a row of the aforementioned power terminal pair 2 is assembled and fixed to the first insulating member 31 to form a first terminal module. Another row of the aforementioned power terminal pair 2 is assembled and fixed to the second insulating member 32 to form a second terminal module.

The aforementioned first and second insulators 31 and 32 each have a plurality of first installation grooves 301 arranged side by side in the transverse direction and a plurality of second installation grooves 302 arranged side by side in the transverse direction. The first horizontal portion 2011 is fixed to the first In the installation groove 301, the aforementioned second horizontal portion 2013 is located in the second installation groove 302.

In addition, in this embodiment, in the front-rear direction, the second installation groove 302 of the aforementioned second insulator 32 is located behind the first installation groove 301 thereof.

In this embodiment, the first insulating member 31 is assembled on the upper side of the second insulating member 32, and the first and second insulating members 31, 32 each have a base 303 and an extension 304 extending backward from the base 303. The first installation groove 301 penetrates the base portion 303 in the front-rear direction, and the second installation groove 302 penetrates the extended portion 304 in the front-rear direction.

The aforementioned first insulating member 31 also has at least one matching portion 311 protruding from the bottom thereof. The aforementioned second insulating member 32 also has a resisting portion 321 protrudingly provided on the top surface 3030 of the base portion 303, at least one mating groove 322 recessed on the top surface 3030 of the base portion 303, and a bottom surface protruding from the base portion 303. Positioning convex portion 323 outside 3031.

After the two rows of the aforementioned power terminal pairs 2 are respectively fixed to the aforementioned first and second insulating members 31, 32, the aforementioned first and second insulating members 31, 32 are assembled to each other in the height direction, and the aforementioned abutting portion 321 abuts against the aforementioned first insulating member 31, 32. On the rear side of the base portion 303 of an insulating member 31, the matching portion 311 of the bottom of the aforementioned first insulating member 31 is received and positioned in the corresponding matching groove 322 of the second insulating member 32.

When the first and second insulators 31, 32 of the fixed power terminal pair 2 are assembled and assembled together in the insulator body 1, the second insulator 32 is supported by the carrying portion 112, and the positioning protrusion 323 is clamped It is located in the corresponding positioning hole 1121 on the aforementioned insulating housing 1.

Referring to FIGS. 3 to 5, in this embodiment, the electrical connector 100 further has a plurality of signal terminals 4 located on one side of the power terminal pair 2 in the lateral direction, and the insulating body 1 also has A plurality of accommodating grooves 17 located on one side of the aforementioned terminal groove 13 for accommodating the aforementioned signal terminal 4. Each signal terminal 4 includes a fixing portion 41, an insertion portion 42 extending from one end of the fixing portion 41, and a pin 43 extending from the other end of the fixing portion 41.

The fixing portion 41 is inserted from the rear side of the mounting portion 11 and fixed in the accommodating groove 17, and the inserting portion 42 located on the front side of the fixing portion 41 protrudes into the docking portion 12 to realize electrical connection with the docking element. connect. In this embodiment, barbs 411 are respectively provided on both sides of the fixing portion 41, and the barbs 411 interfere with the mounting portion 11 to realize the fixing of the signal terminal 4 in the insulating body 1 and prevent it from being connected to the docking device. The signal terminal 4 shakes during docking, which improves docking stability.

In addition, the aforementioned electrical connector 100 further has a seat body 5 assembled to the aforementioned insulating body 1 and fixing the pins 43 of the aforementioned signal terminal 4.

Please refer to Figures 3 to 5 in combination with Figures 10 to 12, the aforementioned electrical connector 100 also has a cover 6 assembled on the aforementioned mounting portion 11, and the aforementioned cover 6 is plate-shaped and has an edge It is a long strip extending in the lateral direction, and the cover 6 is assembled into the guiding groove 1132 formed on the extension 113 from back to front.

In this embodiment, the cover 6 includes a substrate 61 and a pair of insertion portions 62 located on both sides of the substrate 61 in the lateral direction. The substrate 61 is provided with a plurality of through holes 612 and protrusions penetrating it in the height direction. On the spacers 613 on the bottom surface, the through holes 612 are located at the rear end of the substrate 61 and are arranged in a row along the transverse direction. Each spacer 613 extends in the front-rear direction and extends from the front end surface of the substrate 61 to the rear end surface of the substrate 61.

Each of the insertion portions 62 has a tip 621 at the front side and a fixing block 622 at the bottom thereof. The tip 621 is sharpened to facilitate the insertion of the insertion portion 62 into the corresponding guiding groove 1132 smoothly.

After the terminal module is installed in the insulating body 1, the cover 6 is assembled to the rear of the insulating body 1 from back to front, and the insertion portion 62 is inserted forward into the corresponding guide groove 1132 until the locking block 622 It is buckled in the clamping hole 1134 to fix the cover 6 above the back of the insulating body 1, and a spacer 613 is arranged between two adjacent power terminal pairs. The substrate 61 covers the second horizontal portion 2013 from the upper side of the second horizontal portion 2013 of the power terminal 21 located on the uppermost side, and the second horizontal portion 2013 of the power terminal 21 located on the uppermost side covers the second horizontal portion 2013 of the power terminal 21 and the board The connecting portion of the shaped portion 205 is partially exposed in the aforementioned through hole 612.

Please refer to Figures 13 to 18, which is a second embodiment of the electrical connector of the present invention. The electrical connector 100' includes an insulating body 1'and a plurality of power terminal pairs fixed to the insulating body 1' 2', insulator 3', plural signal terminals 4', base 5'and cover 6', including insulating body 1', power terminal pair 2', signal terminal 4', base 5'and cover 6' The basic structure and assembling relationship of are the same as those of the electrical connector 100 in the first preferred embodiment, which will not be repeated here, and only the differences will be described below:

In the second embodiment of the present invention, the aforementioned insulating member 3'includes a plurality of first and second insulating members 31', 32', and the aforementioned first insulating member 31' and the second insulating member 32' are arranged in pairs and form a pair. The first and second insulators 31' and 32' are arranged opposite to each other and buckle with each other in the transverse direction to accommodate a group of power terminal pairs 2'.

The same as the first embodiment, the aforementioned first and second insulating members 31', 32' each have a first installation groove 301' and a second installation groove 302' spaced apart along the height direction; the difference is that the aforementioned first The first mounting slot 301' of an insulating member 31' and the first mounting slot 301' of the aforementioned second insulating member 32' are disposed opposite to each other, and the second mounting slot 302' of the aforementioned first insulating member 31' is opposite to the aforementioned second insulating member The second mounting slot 302' of 32' is oppositely arranged, and after the first insulating member 31' and the second insulating member 32' are buckled, the first mounting slot 301' of the first insulating member 31' is insulated from the aforementioned second insulating member 31' The first mounting groove 301' of the member 32' is communicated to jointly receive the corresponding power terminal pairs therein, and the second mounting groove 302' of the aforementioned first insulating member 31' and the second mounting of the aforementioned second insulating member 32' The slots 302' are connected to each other to accommodate the corresponding power terminal pair 2'.

Two power terminal pairs 2'of each power terminal pair are respectively fixed in the first and second mounting slots 301' and 302'. Specifically, in this embodiment, the power terminal pair 2'located on the upper side of each power terminal pair is fixed in the first mounting groove 301' of the first and second insulators 31', 32', and is located on the lower side. The power supply terminal pair 2'is fixed in the second mounting groove 302' of the first and second insulators 31', 32'.

In addition, taking the first insulating member 31' and the second insulating member 32' arranged in pairs as an example, one of the aforementioned first insulating member 31' and the second insulating member 32' is provided with a protrusion protruding toward the other. The other of the first insulating member 31' and the second insulating member 32' is provided with a receiving groove 306' for receiving and fixing the protruding portion 305'. At least one of the aforementioned first insulating member 31' and the second insulating member 32' has a positioning protrusion 323' protruding from the bottom thereof to be clamped in the corresponding positioning hole 1121' on the insulating body 1'.

As shown in Figures 14 to 17, it is a schematic diagram of the assembly process of a set of power terminal pair 2'and the first and second insulators 31', 32'. The power terminal pair 2'on the lower side is installed first Into the first mounting slot 301' of the first insulating member 31', and then insert the power terminal pair 2'on the upper side into the second mounting slot 302' of the first insulating member 31', and then insert the second insulating member 32 'Assembled on one side of the aforementioned first insulating member 31' in the transverse direction.

Please refer to Figures 19 to 21, which is a third embodiment of the electrical connector of the present invention. The electrical connector 100" includes an insulating body 1", and the Multiple power terminal pair 2", insulator 3", multiple signal terminal 4", base 5" and cover 6", of which insulating body 1", power terminal pair 2", and multiple signal terminals 4", the basic structure and assembly relationship of the base 5" and the cover 6" are the same as those of the electrical connector 100 in the first preferred embodiment. Be explained:

Like the first preferred embodiment, the aforementioned power terminal pairs 2" are also arranged in pairs along the height direction to form a group, and the two power terminal pairs 2" in each group of power terminal pairs are opposed and spaced along the aforementioned height direction. The plurality of contact portions 202” of the two power terminals 21” in each power terminal pair 2” are alternately arranged in the transverse direction, and the solder feet 203” of each row of the power terminal pair 2” Into two rows aligned in the transverse direction.

The difference from the first embodiment is that in the third embodiment of the present invention, the aforementioned insulating member 3" includes a plurality of insulating blocks 30" arranged side by side in the transverse direction, and each group of the aforementioned power terminal pair 2" is inclined The part 2012" and at least part of the first and second horizontal parts 2011", 2013" are jointly embedded and molded into one of the aforementioned insulating blocks 30".

In each embodiment of the present invention, the electrical connectors 100, 100', 100" have a relatively low center height so as to be electrically connected to the mating components. The aforementioned power terminal pairs 2, 2', 2" are divided into the height direction. At least two rows, each of the aforementioned power terminal pairs 2, 2', 2" in each row includes two pieces of power terminals, and the aforementioned power terminal pairs 2, 2', 2" are fixed to the insulators 3, 3', 3 ''The rear is jointly loaded into the insulating housings 1, 1', 1'' from the rear side of the aforementioned insulating housings 1, 1', 1'', so that the power terminals 21 are arranged in a multi-piece arrangement in the height direction. , 21', 21" can be easily bent to form downwardly extending welding feet and can be easily assembled into the insulating body 1, 1', 1", thereby realizing the electrical connectors 100, 100', 100" It can transmit large currents, the overall height and the center height are low, and it solves the problem of difficult assembly of multi-row power terminals.

In particular, it needs to 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, 100', 100'', 1900: electrical connector 1, 1', 1'', 91: insulating body 11: Installation Department 110: mounting surface 112: Bearing Department 1121, 1121': positioning hole 113: Extension 1132: guide slot 1133: missing 1134: Snap Hole 1135: groove bottom 114: The first mounting surface 115: second mounting surface 12: Docking Department 120: docking space 121: front face 13: terminal slot 131: The first groove 132: second groove 14: compartment 15: next wall 16: limit convex 17: accommodating slot 2, 2', 2'', 92: power terminal pair 201: Holding Department 2011, 2011'': First level department 2012, 2012'': Inclined part 2013, 2013'': second level department 2014: Interference Department 202, 202'', 921: contact part 2020: contact zone 203, 203'': solder feet 204: Contact Arm 205: Plate 21, 21', 21'': power terminal 3, 3', 3'': insulating parts 30'': insulating block 301, 301': the first installation slot 302, 302': second installation slot 303: base 3030: top surface 3031: Bottom 304: Extension 305': Overhang 306': Containment Slot 31, 31': the first insulator 311: Cooperating Department 32, 32': the second insulator 321: Block 322 Mating Groove 323, 323': positioning convex part 4, 4', 4'': signal terminal 41: fixed part 411: Barb 42: Socket 43: pin 5, 5', 5'': seat body 6, 6', 6'': cover 61: substrate 612: Through Hole 613: Spacer 62: Insertion part 621: tip 622: card solid block 81: circuit board 82: Golden Finger 83: Motherboard 84: Adapter element

The first figure is a cross-sectional view of a conventional electrical connector. The second figure is a schematic diagram of the electrical connector shown in the first figure when it is mounted on the circuit board and is opposite to the mating component. The third figure is a three-dimensional assembly diagram of the first embodiment of the electrical connector of the present invention. The fourth figure is a view from another perspective of the electrical connector shown in the third figure. Figure 5 is a partial exploded view of the electrical connector shown in Figure 3. The sixth figure is a partial exploded view of the terminal module in the electrical connector shown in the fifth figure. Figure 7 is a view of the terminal module shown in Figure 6 from another perspective. Figure 8 is a further exploded view of the terminal module shown in Figure 6. The ninth figure is a view from another perspective of the terminal module shown in the eighth figure. Figure 10 is a perspective view of the cover in the electrical connector shown in Figure 5. Figures 11 to 12 are cross-sectional views of the electrical connector shown in Figure 3 along the line A-A. Figure 13 is a partial exploded view of the second embodiment of the electrical connector of the present invention. Figure 14 is a three-dimensional exploded view of a terminal module of the electrical connector shown in Figure 13. Figure 15 is a partial assembly diagram of the terminal module shown in Figure 14. Figure 16 is a further assembly drawing of the terminal module shown in Figure 15. Figure 17 is a three-dimensional assembly diagram of the terminal module shown in Figure 16. Figure 18 is a cross-sectional view of the electrical connector shown in Figure 13 after being assembled. Figure 19 is a partial exploded view of the third embodiment of the electrical connector of the present invention. Figure 20 is a three-dimensional assembly diagram of a terminal module of the electrical connector shown in Figure 19. Figure 21 is a schematic cross-sectional view of the electrical connector shown in Figure 19 after being assembled.

112: Bearing Department

1121: positioning hole

113: Extension

1132: guide slot

1133: missing

1134: Snap Hole

1135: groove bottom

114: The first mounting surface

115: second mounting surface

12: Docking Department

201: Holding Department

202: Contact

203: Solder foot

205: Plate

21: Power terminal

31: The first insulator

32: The second insulator

321: Block

4: Signal terminal

41: fixed part

42: Socket

43: pin

5: Seat

6: Lid

612: Through Hole

Claims (10)

An electrical connector comprising an insulating body and a plurality of power terminal pairs fixed to the insulating body. The insulating body has a mounting portion for mounting on a circuit board, a butting portion extending forward from the mounting portion, and a plurality of front and rear edges A terminal slot extending in the direction, the aforementioned power terminal pair is fixed in the corresponding terminal slot of the aforementioned insulating body and divided into at least two rows arranged along the height direction. Each aforementioned power terminal pair in each row includes two power terminals, each power supply The terminal includes a holding portion held in the corresponding terminal groove, at least a pair of contact portions extending forward from the front end of the holding portion, and at least one solder foot formed by bending and extending from the rear end of the holding portion, wherein the electrical connector There is also an insulating member fixed to the outside of the power terminal, and the pair of power terminals are fixed to the insulating member and then jointly inserted into the insulating body from the back side of the insulating body. The electrical connector described in the first item of the scope of patent application, wherein the mounting portion has a mounting surface for mounting on the circuit board, and in the height direction, the mounting surface is not lower than the horizontal center surface of the mating portion. According to the electrical connector described in claim 1, wherein each of the aforementioned holding portions includes a first horizontal portion extending in a horizontal direction, an inclined portion formed by bending upward and backward from the rear end of the aforementioned first horizontal portion, and A second horizontal portion formed by bending and extending backward from the top end of the aforementioned inclined portion. The electrical connector described in item 3 of the scope of patent application, wherein the insulator includes a first insulator and a second insulator assembled with each other, and two rows of the power terminal pairs are fixed to the first and second insulators to form The terminal module is then inserted into the aforementioned insulating body. The electrical connector described in item 4 of the scope of patent application, wherein the first and second insulating members each have a first installation groove and a second installation groove formed by penetrating them in the front-to-rear direction to accommodate the holding portion, the aforementioned first The first installation groove and the second installation groove are spaced apart along the height direction. The electrical connector described in item 5 of the scope of patent application, wherein the aforementioned power terminal pairs are arranged in pairs along the height direction to form a group, and the two power terminal pairs in each group of power terminal pairs are arranged opposite and spaced along the aforementioned height direction , The plurality of contact parts of the two power terminals in each power terminal pair are alternately arranged in the transverse direction, and the solder pins of each row of the power terminal pairs are arranged in two rows aligned in the transverse direction. The electrical connector described in item 6 of the scope of patent application, wherein the first insulator and the second insulator are assembled with each other along the height direction, and a row of the power terminal pair is assembled and fixed to the first insulator to form a first terminal Module, another row of the aforementioned power terminal pair is assembled and fixed to the second insulating member to form a second terminal module. According to the electrical connector described in item 7 of the scope of patent application, wherein the first and second insulating members each have a plurality of first installation grooves arranged side by side in the transverse direction and a plurality of second installation grooves arranged side by side in the transverse direction. The first horizontal portion is fixed in the first installation groove, and the second horizontal portion is located in the second installation groove. The electrical connector described in item 6 of the scope of patent application, wherein the insulating member includes a plurality of the first and second insulating members, the first insulating member and the second insulating member are arranged in pairs, and the first insulating member is arranged in pairs. , The second insulators are arranged oppositely and buckled with each other in the transverse direction to accommodate a group of power terminal pairs, and two power terminal pairs in each group of power terminal pairs are respectively fixed in the first and second installation grooves. The electrical connector described in item 3 of the scope of patent application, wherein the aforementioned power terminal pairs are arranged in pairs along the height direction to form a group, the aforementioned insulating member includes a plurality of insulating blocks arranged side by side along the lateral direction, and each group of the aforementioned power terminal pairs The inclined part and at least part of the first and second horizontal parts are jointly embedded and molded into one of the aforementioned insulating blocks.

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