The application is a divisional application of an application patent application with the application date of 2019, 8-month and 5-date, the application number of 201910716350.0 and the application name of electric connector.
Disclosure of Invention
The invention aims to provide an electric connector which can increase conductor paths and further effectively inhibit heat generation of a conductive terminal.
In order to achieve the above object, the present invention provides an electrical connector, which comprises an insulating body with a mating space formed therein, and a pair of power terminals disposed in the insulating body, wherein the pair of power terminals includes an upper terminal unit and a lower terminal unit, each of the upper terminal unit and the lower terminal unit includes a first terminal unit and a second terminal unit, each of the first terminal unit and the second terminal unit includes a holding portion fixed in the insulating body and a contact portion protruding from the holding portion into the mating space, the holding portion of the upper terminal is disposed along a height direction of the insulating body, the contact portion is disposed along a transverse direction of the insulating body, the holding portion of the lower terminal is disposed along a height direction of the insulating body, and the contact portion is disposed along a transverse direction of the insulating body.
As a further improvement of the invention, the projections of the holding portions of the upper terminals on the horizontal plane are partially overlapped, and the projections of the holding portions of the lower terminals on the horizontal plane are also partially overlapped.
In the upper terminal, the contact portion of the first terminal unit and the contact portion of the second terminal unit are arranged at the upper side position of the butting space along the height direction of the insulating body so as to be in contact connection with one side of a butting element together, and in the lower terminal, the contact portion of the first terminal unit and the contact portion of the second terminal unit are arranged at the lower side position of the butting space along the height direction of the insulating body so as to be in contact connection with the other side of the butting element together.
In the upper terminal, the contact part of the first terminal unit and the contact part of the second terminal unit are arranged in a front-back staggered mode, and in the lower terminal, the contact part of the first terminal unit and the contact part of the second terminal unit are arranged in a front-back staggered mode.
As a further improvement of the present invention, in the upper terminal, the holding portion of the first terminal unit and the holding portion of the second terminal unit are disposed adjacently in the height direction of the insulating body, and the contact portion of the first terminal unit and the contact portion of the second terminal unit are disposed adjacently in the lateral direction of the insulating body.
As a further improvement of the present invention, in the upper and lower terminals, the holding portion of the second terminal unit is disposed closer to the horizontal center plane of the docking space than the holding portion of the first terminal unit, and the number of bending times between the holding portion and the contact portion in the second terminal unit is larger than the number of bending times between the holding portion and the contact portion in the first terminal unit.
The invention also provides an electric connector, which comprises an insulating body with a butt joint space and a plurality of power terminals arranged in the insulating body, wherein the power terminals are provided with a fixing part fixed in the insulating body and a contact part protruding into the butt joint space from the fixing parts in the same direction, and the electric connector is characterized in that the power terminals form a plurality of terminal groups, at least one terminal group comprises a first power terminal with the fixing part positioned at the upper side and a second power terminal with the fixing part positioned at the lower side, and the contact parts of the first power terminal and the second power terminal in the same terminal group are arranged along the transverse direction of the insulating body so as to contact with the same side of a butt joint element, and the contact parts of the power terminals are oppositely arranged at the upper side and the lower side of the horizontal center plane of the butt joint space so as to be respectively connected with the two sides of the butt joint element in a contact way.
As a further improvement of the present invention, in the same terminal group, the projections of the holding portions of the first power supply terminal and the holding portions of the second power supply terminal on the horizontal plane are partially overlapped.
As a further improvement of the present invention, in the same terminal group, the holding portion of the first power supply terminal and the holding portion of the second power supply terminal are disposed adjacently in the height direction of the insulating body, and the contact portion of the first power supply terminal and the contact portion of the second power supply terminal are disposed adjacently in the lateral direction of the insulating body.
As a further improvement of the present invention, the first power supply terminal and the second power supply terminal are respectively formed with a plurality of the contact portions, and the contact portions of the first power supply terminal and the contact portions of the second power supply terminal are alternately and circularly arranged in the transverse direction in the same terminal group.
The electric connector has the beneficial effects that the contact parts of the first terminal unit and the second terminal unit in the upper terminal are arranged in one row along the height direction to form the same row of contact parts, and the contact parts of the first terminal unit and the second terminal unit in the lower terminal are arranged in one row along the height direction to form the other row of contact parts, so that a current channel can be effectively increased, the heating condition of a power terminal can be reduced, and the transmission reliability of the electric connector can be improved.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiment is not intended to limit the present invention, and structural, methodological, or functional modifications of the invention according to the embodiment are included in the scope of the invention.
Referring to fig. 1 to 9, a first preferred embodiment of the electrical connector of the present invention is shown, wherein the electrical connector 100 comprises an insulative housing 1 with a mating space 120 and a plurality of power terminals 21 fixed to the insulative housing 1. The power terminals 21 are oppositely disposed in pairs in the insulating body 1, and each pair of power terminals 21 will be referred to as a power terminal pair 2 in the following description.
For convenience of description, the following description will be given with the mating end of the electrical connector 100 being regarded as the front end and the other end opposite to the mating end being regarded as the rear end, that is, the front-rear direction is the mating direction of the electrical connector 100 and the mating element (not shown), while one direction perpendicular to the front-rear direction is defined as the lateral direction and the other direction perpendicular to the front-rear direction is defined as the height direction, and in this embodiment, the dimension of the insulating body 1 in the lateral direction is larger than the dimension thereof in the height direction and the front-rear direction.
Referring to fig. 1 to 4 in combination with fig. 8 to 9, in the present invention, the insulating body 1 has a mounting portion 11 for mounting on a circuit board (not shown), a docking portion 12 extending forward from the mounting portion 11, a plurality of first terminal grooves 13 extending in a front-rear direction, and a plurality of spacers 14 extending in the front-rear direction, and one of the spacers 14 is disposed between each two adjacent first terminal grooves 13. The first terminal groove 13 penetrates the insulating body 1 in the front-rear direction, and the barrier 14 extends forward from the base 11 to the front end surface 121 of the abutting portion 12.
The mating portion 12 has the mating space 120 opened forward to accommodate a mating member, and the first terminal groove 13 communicates with the mating space 120.
In the present embodiment, the insulating body 1 has upper and lower rows of first terminal grooves 13 and a partition wall 15 formed between the upper and lower rows of first terminal grooves 13, the partition wall 15 extending in the lateral direction and formed inside the base 11 and partitioning the upper and lower rows of first terminal grooves 13. Further, the partition wall 15 extends forward to the front end face of the base 11, which does not extend forward into the abutting portion 12.
The rear side of the base 11 has a first mounting surface 111, a second mounting surface 112, and a third mounting surface 113 that are disposed at intervals in the front-rear direction, wherein the third mounting surface 113, the second mounting surface 112, and the first mounting surface 111 are sequentially aligned in the front-rear direction.
Referring to fig. 4 and 9, in the present embodiment, the first terminal slot 13 includes a through slot 131 penetrating the base 11 in the front-rear direction and a plurality of fixing slots 132 communicating with the through slot 131, the fixing slots 132 are arranged symmetrically in pairs, and in the present embodiment, the first terminal slot 13 includes two pairs of fixing slots 132 arranged at intervals in the height direction, and two fixing slots 132 in each pair are disposed on two sides of the through slot 131 in the transverse direction. In the same first terminal groove 13, the fixing groove 132 on the upper side has a longer extension in the front-rear direction than the fixing groove 132 on the lower side.
Referring to fig. 5 to 9, the power terminal pair 2 includes an upper terminal 2a correspondingly received in the upper row of first terminal slots 13 and a lower terminal 2b correspondingly received in the lower row of first terminal slots 13, the upper terminal 2a is an upper power terminal 21 among the power terminals arranged in pairs, and the lower terminal 2b is a lower power terminal 21.
The upper terminal 2a and the lower terminal 2b respectively comprise a first terminal unit and a second terminal unit, which are respectively provided with a holding portion 201 held in the first terminal groove 13, a contact portion 202 protruding from the holding portion 201 into the docking space 120, and a soldering portion 203 extending out of the insulating body 1.
The holding parts 201 of the upper terminals 2a are arranged along the height direction of the insulating body 1, the contact parts 202 are arranged along the transverse direction of the insulating body 1, and the holding parts 201 of the lower terminals 2b are arranged along the height direction of the insulating body 1, and the contact parts 202 are arranged along the transverse direction of the insulating body 1.
As shown in fig. 5 to 8, the projections of the holding portions 201 of the upper terminals 2a on the horizontal plane are partially overlapped, and the projections of the holding portions 201 of the lower terminals 2b on the horizontal plane are also partially overlapped.
In the upper terminal 2a, the contact portion 202 of the first terminal unit and the contact portion 202 of the second terminal unit are disposed at the upper side position of the butting space 120 along the height direction of the insulating body 1 so as to be in contact connection with one side of a butting element together, and in the lower terminal 2b, the contact portion 202 of the first terminal unit and the contact portion 202 of the second terminal unit are disposed at the lower side position of the butting space 120 along the height direction of the insulating body 1 so as to be in contact connection with the other side of the butting element together.
In some embodiments, the contact portions 202 of the two power terminals 21 in each of the power terminal pairs 2 are arranged in a row in the height direction, and the contact portions 202 of the two power terminals 21 are alternately arranged in a cycle in the lateral direction. In other words, the contact portions 202 of the upper terminal 2a (i.e., the contact portion 202 including the first terminal unit and the contact portion 202 of the second terminal unit) are all disposed on the same plane to be in contact with the same side of the pair of contact elements, for example, the upper terminal 2a. In the present invention, the contact portions 202 of the first terminal unit and the second terminal unit in the lower terminal 2b are disposed identically to the contact portions 202 of the upper terminal 2a described above, and will not be described again.
Of course, in other embodiments, the contact portions 202 of the two power terminals 21 in each power terminal pair 2 may be staggered along the height direction, as long as the contact portions 202 of the two power terminals 21 in each power terminal pair 2 are on the same horizontal plane along the height direction when they can be docked with the docking element. In other words, in the above terminal 2a, for example, in the above terminal 2a, the contact portion 202 of the first terminal unit and the contact portion 202 of the second terminal unit may have a certain positional deviation or a misalignment in the height direction, so long as the contact portion 202 in the upper terminal 2a can be stably connected in contact with the same side of the mating element when the contact portion is mated with the mating element, that is, the contact portion 202 is on the same horizontal plane in the height direction when the contact portion is mated with the mating element.
As shown in fig. 7, in the upper terminal 2a and the lower terminal 2b, the holding portion 201 of the second terminal unit is disposed closer to the horizontal center plane of the docking space 120 than the holding portion 201 of the first terminal unit, and the number of bending times between the holding portion 201 and the contact portion 202 in the second terminal unit is larger than the number of bending times between the holding portion 201 and the contact portion 202 in the first terminal unit.
In the present embodiment, the upper terminal 2a and the lower terminal 2b have two terminal units, that is, only the first terminal unit and the second terminal unit are included, and in this embodiment, each terminal unit has a plurality of contact portions 202 formed by extending forward from one end of the holding portion 201 and a plurality of welding portions 203 formed by extending from the other end of the holding portion 201, and the plurality of contact portions 202 of the two terminal units are alternately and circularly arranged along the transverse direction.
In addition, in terms of usage habit or naming habit, each terminal unit may be regarded as one power terminal 21, and in this case, the upper terminal 2a and the lower terminal 2b may be referred to as one terminal group, in each terminal group, the power terminal of the holding portion 201 located at the upper side is a first power terminal, the power terminal of the holding portion 201 located at the lower side is a second power terminal, and the contact portions 202 of the first power terminal and the second power terminal are arranged in the lateral direction of the insulating body 1 so as to contact with the same side of the butt element. That is, the first terminal unit of the upper terminal 2a may be referred to as a first power terminal and the second terminal unit may be referred to as a second power terminal, and the second terminal unit of the lower terminal 2b may be referred to as a first power terminal and the first terminal unit may be referred to as a second unit terminal. In the height direction of the insulating body 1, projections of the holding portion 201 of the first power supply terminal and the holding portion 201 of the second power supply terminal on a horizontal plane overlap.
The upper terminals 2a and the lower terminals 2b are arranged in pairs in the height direction, and are arranged opposite to and at intervals. The solder portion 203 of the upper terminal 2a is located behind the second mounting surface 112 in the front-rear direction, and the solder portion 203 of the lower terminal 2b is located between the second mounting surface 112 and the third mounting surface 113.
In this embodiment, each power terminal 21 has three contact portions 202 formed by extending forward from its holding portion 201, the holding portion 201 is of a sheet-like structure parallel to the horizontal plane, the contact portions 202 are curved, and have contact regions 2020 protruding toward the partition wall 15.
The contact portions 202 of the power terminal pairs 2 in the same row are arranged in two rows offset in the front-rear direction. At the same time, the contact areas 2020 of the contact portions 202 of the power terminal pairs 2 located in the same row are at or substantially on the same horizontal plane. Further, two contact portions 202 located adjacent in the same row are disposed offset in the front-rear direction. That is, in the present invention, the contact portion 202 of the first terminal unit and the contact portion 202 of the second terminal unit are arranged in a front-rear offset manner in the upper terminal 2a, and the contact portion 202 of the first terminal unit and the contact portion 202 of the second terminal unit are arranged in a front-rear offset manner in the lower terminal 2 b. In this way, when the docking element is inserted, the contact portions 202 staggered in two rows along the front-rear direction can be contacted with the docking element respectively, so as to realize multi-level and multi-contact, so that the contact is more sufficient, the stability of the electrical connection and the stability of current transmission are enhanced, and the insertion and extraction force between the docking element and the docking element is distributed uniformly, and the heating value of the contact surface is reduced.
Referring to fig. 6 to 8, since the holding portion 201 of the second terminal unit is disposed closer to the horizontal center plane of the docking space 120 than the holding portion 201 of the first terminal unit, the first terminal unit is regarded as an outer terminal 211 and the second terminal unit is regarded as an inner terminal 212 among the upper terminal 2a and the lower terminal 2 b. Wherein the holding portion 201 and the contact portion 202 of the inner terminal 212 are closer to the partition wall 15 of the insulating body 1, i.e., closer to the horizontal center plane of the docking space 120, than the outer terminal 211. The contact portion 202 of the outer terminal 211 is disposed farther forward than the contact portion 202 of the inner terminal 212 in the front-rear direction. The contact portion 202 of the outer terminal 211 contacts the mating element first, and the contact portion 202 of the inner terminal 212 contacts the mating element later, so as to reduce the insertion force, make the insertion feel better, and avoid the deformation and failure of the elastic contact arm after long-term insertion and extraction, thereby ensuring long-term electrical connection.
In the upper terminal 2a, the holding portions 201 of the first terminal unit and the holding portions 201 of the second terminal unit are arranged at intervals along the height direction, and are mounted and fixed in the same first terminal slot 13 from the rear side of the base 11 forward, and the holding portions of the first terminal unit and the second terminal unit in the lower terminal 2b are arranged identically to the holding portions 201 in the upper terminal 2 a. Each of the holding portions 201 is provided with an interference portion 2011 protruding outwards on two sides along the transverse direction, and the interference portion 2011 is in interference fit with the corresponding fixing groove 132 of the first terminal groove 13.
As shown in fig. 7, the four holding portions 201 of the upper terminal 2a and the lower terminal 2b are sequentially reduced in length in the front-rear direction in the top-bottom direction, that is, in the upper terminal 2a, the holding portion 201 of the first terminal unit (the outer terminal 211) is longer in length in the front-rear direction than the holding portion 201 of the second terminal unit (the inner terminal 212), and in the lower terminal 2b, the holding portion 201 of the first terminal unit (the inner terminal 212) is longer in length in the front-rear direction than the holding portion 201 of the second terminal unit (the outer terminal 211). Meanwhile, the length of the holding portion 201 of the second terminal unit (inner terminal 212) in the upper terminal 2a in the front-rear direction is longer than the length of the holding portion 201 of the first terminal unit (inner terminal 212) in the lower terminal 2 b.
In this embodiment, the soldering portion 203 includes a plate-shaped portion 2031 extending from the rear end of the holding portion 201 in a downward bending manner, and a plurality of soldering feet 2032 extending from the bottom end of the plate-shaped portion 2031 in a downward direction, in this embodiment, the plate-shaped portion 2031 is disposed parallel to a vertical plane, and the soldering feet 2032 extend in a vertical direction to be inserted into an external circuit board (not shown).
Each of the power terminals 21 has a plurality of elastic contact arms 204 extending forward from the front end of the holding portion 201 thereof, the contact portions 202 are located at the front side of the corresponding contact arms 204 to contact with the mating member, and the contact arms 204 pass forward through the first terminal slots 13 and are accommodated in the mating portion 12.
The contact arm 204 of the outer terminal 211 is at a greater angle to the horizontal than the contact arm 204 of the inner terminal 212. In this embodiment, the inner end 212 further has a connecting arm 205 connecting the contact arm 204 thereof with the holding portion 201, and the connecting arm 205 is opposite to the bending extending direction of the contact arm 204 so that the angle therebetween is opened inward (i.e., toward the partition wall 15).
Specifically, for example, the connection arm 205 is bent and extended forward and upward from the front end of the holding portion 201, and the contact arm 204 is bent and extended forward and downward from the front end of the connection arm 205, so that the opening of the included angle between the contact arm 204 and the connection arm 205 is downward. Further, the two holding portions 201 of the upper terminal 2a and the portion located at the front side of the holding portion 201 (including the plurality of contact arms 204, the connecting arm 205 and the contact portion 202) are disposed in mirror symmetry with the two holding portions 201 of the lower terminal 2b and the portion located at the front side of the holding portion 201.
Referring to fig. 1 to 3 in combination with fig. 9, in the present embodiment, the electrical connector 100 further has a plurality of signal terminals 3 located at one side of the pair of power terminals 2 in the transverse direction, and the insulating body 1 further has a plurality of second terminal grooves 16 located at one side of the first terminal grooves 13.
Each signal terminal 3 includes a fixing portion 31, a socket portion 32 extending from one end of the fixing portion 31, and a pin 33 extending from the other end of the fixing portion 31. The fixing portion 31 is inserted from the rear side of the base 11 and fixed in the second terminal slot 16, and the plugging portion 32 located at the front side of the fixing portion 31 protrudes into the docking portion 12 to be electrically connected with the docking device. In this embodiment, the two sides of the fixing portion 31 are respectively provided with a barb 311, and the barb 311 is in interference fit with the base 11 to fix the signal terminal 3 in the insulating body 1, so as to prevent the signal terminal 3 from shaking when docking with the docking device, and improve docking stability.
The electrical connector 100 of the present invention arranges the contact portions 202 of the first terminal unit and the second terminal unit in the upper terminal 2a in a row along the height direction to form the same row of contact portions, and arranges the contact portions 202 of the first terminal unit and the second terminal unit in the lower terminal 2b in a row along the height direction to form another row of contact portions, which can effectively increase the current path, reduce the heat generation condition of the power terminal 21, and improve the transmission reliability of the electrical connector 100.
Referring to fig. 10 to 13, in a second preferred embodiment of the electrical connector according to the present invention, the electrical connector 100 'includes an insulative housing 1' and a plurality of power terminal pairs 2 'fixed to the insulative housing 1', wherein the basic structure and the assembly relationship of the insulative housing 1 'and the power terminal pairs 2' are the same as those of the electrical connector 100 in the first preferred embodiment, and the description thereof is omitted herein, and only the differences are described below:
A plurality of first heat dissipation grooves 171 'are formed in the top wall 17' of the insulating body 1', the top wall 17' is penetrated by the first heat dissipation grooves 171 'along the height direction, and the first heat dissipation grooves are communicated with the first terminal grooves 13' corresponding to the inner sides of the first heat dissipation grooves. Further, in the present embodiment, the top wall 17' is provided with two rows of the first heat dissipation grooves 171' aligned in the front-rear direction, each row of the first heat dissipation grooves 171' is disposed side by side in the lateral direction, and the length of the first heat dissipation grooves 171' in the front row in the front-rear direction is greater than the length of the first heat dissipation grooves 171' in the rear row in the front-rear direction.
At least the power terminal 21 'located at the upper side of each power terminal pair 2' has at least one second heat dissipation groove 206', and the second heat dissipation groove 206' is formed on the corresponding holding portion 201', and penetrates the holding portion 201' along the height direction. In this embodiment, the second heat dissipation grooves 206' are formed on the holding portions 201' of the two power terminals 21' in each upper terminal 2a ', and the second heat dissipation grooves 206' are formed on only the power terminal located on the upper side (i.e., the inner terminal 212' in the lower terminal 2b ') among the two power terminals 21' in each lower terminal 2b '.
Since the holding portion 201' is fixed in the corresponding first terminal slot 13', the heat generated by the power terminal 21' after being energized can be dissipated through the second heat dissipation slot 206', the first terminal slot 13' and the first heat dissipation slot 171', so as to avoid heat accumulation in the insulating body 1 '.
Meanwhile, at least one third heat dissipation groove 207 'is formed in the plate-shaped portion 2031' of each power terminal 21 'in the upper terminal 2a', and the length of the third heat dissipation groove 207 'in the outer terminal 211' is greater than the length of the third heat dissipation groove 207 'in the inner terminal 212' in the height direction. In addition, the projections of the third heat dissipation grooves 207' on the two power terminals 21' in each of the upper rows of the power terminal pairs 2' on the vertical plane at least partially overlap, and the projections of the third heat dissipation grooves 207' on the vertical plane fall within the projections of the lower row of the first terminal grooves 13' on the vertical plane, that is, the third heat dissipation grooves 207' are disposed in alignment with the lower row of the first terminal grooves 13' in the front-rear direction. In the present embodiment, the projection of the third heat dissipation groove 207 'on the inner terminal 212' on the vertical surface falls inside the projection of the third heat dissipation groove 207 'on the outer terminal 211' on the vertical surface. Therefore, the heat dissipation channel on the outer side is larger, so that heat on the power terminal can be dissipated rapidly.
Referring to fig. 14 to 17, a third preferred embodiment of the electrical connector according to the present invention is shown, wherein the electrical connector 100' includes an insulative housing 1', a plurality of power terminal pairs 2' and signal terminals 3' fixed on the insulative housing 1', wherein the basic structure and assembly relationship of the insulative housing 1' and the power terminal pairs 2' are the same as those of the electrical connector 100 according to the first preferred embodiment, and the description thereof will be omitted herein, and only the differences will be described below:
The first heat dissipation groove 171 'of the insulating body 1' is opened at the front of the top wall 17 'and is elongated extending in the front-rear direction, and the first heat dissipation groove 171' is located above the corresponding contact portion 202 'to expose the contact portion 202' outwards. The top wall 17″ is further provided with a plurality of notches 172″ at the rear portion thereof, the notches 172″ being in communication with the corresponding first terminal notches, the rear portions of the power terminal pairs 2″ being exposed within the corresponding notches 172″.
Each of the power terminals 2 'has a contact portion 202' and a base portion 208 'on a front side of a contact arm 204', the contact portion 202 'and the base portion 208' are formed extending forward from the contact arm 204', and the base portion 208' is located on one side of the contact portion 202 'in a lateral direction, in this embodiment, the contact portion 202' of the outer terminal 211 'is formed tearing down from a side of the base portion 208' and is curved inwardly so that a contact region 2020 "of the outer terminal 211 'is substantially aligned with a contact region 2020" of a corresponding inner terminal 212 ", and in this embodiment, the contact region 2020" of the outer terminal 211' is offset from the contact region 2020 "of the corresponding inner terminal 212" in the front-rear direction, further, as shown in fig. 17, the contact region 2020 of the contact portion 202 'of the outer terminal 211' is located closer to the contact region 2020 "than the contact region 2020" of the inner terminal 2020 ".
Referring to fig. 17, the inner terminal 212' also has a contact arm 204' and a connection arm 205' connecting the contact arm 204' with the holding portion 201', and the angle between the contact arm 204' of the outer terminal 211' and the horizontal plane is larger than the angle between the contact arm 204' of the inner terminal 212' and the horizontal plane. In addition, the contact arm 204 'and the connection arm 205' of the inner terminal 212 'each extend obliquely upward while extending from front to back, but the contact arm 204' of the inner terminal 212 'and the connection arm 205' are different in the magnitude of the angle with the horizontal plane, and the angle between the connection arm 205 'and the horizontal plane is larger than the angle between the contact arm 204' and the horizontal plane.
The contact areas 2020 "of the outer terminals 211" are located inside the contact areas 2020 "of the respective inner terminals 212" when not docked with the docking element, and the contact areas 2020 "of the contact portions 202" of the power terminal pairs 2 "located in the same row are on the same horizontal plane when docked with the docking element.
Meanwhile, the inner terminal 212' and the outer terminal 211' of the power terminal pair 2' are arranged in the height direction and have fixing structures to be combined with each other to make the two stacked and fixed, in this embodiment, the fixing structures are mutually matched protrusions 2112' and positioning grooves 2121', further, the outer terminal 211' has at least one protrusion 2112' formed protruding toward the inner terminal 212', the inner terminal 212' has a positioning groove 2121' for the protrusion 2112' to insert and fix, and in other embodiments, the fixing structures on the outer terminal 211' and the inner terminal 212' can also be interchanged.
The electrical connector 100' further has a positioning seat 4' for simultaneously fixing the signal terminal 3' and the power terminal pair 2' in the insulating body 1', wherein the positioning seat 4' is elongated and has a plurality of through holes 41' for the solder pins 2032' and the pins 33' to pass through.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention.