TWI559622B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector that facilitates the mounting of a flexible circuit board.

With the rapid development of the electronics industry, electrical connectors have been widely used as a connection device for transmitting digital signals, audio signals and image signals. The electrical connector usually includes a plastic body and a plurality of conductive terminals fixed to the plastic body. The configuration of the conductive terminals of the electrical connector is different depending on the application. Conventional conductive terminals are provided with solder fillets for soldering to the board. However, when the number of conductive terminals is set to be large, or the space is limited or the structure of the circuit board is limited, the soldering operation of the conductive terminals and the circuit board is difficult. In addition, compared with the welding, it is more convenient to use the mechanical structure to directly connect the conductive terminals and the circuit board to the manufacturing process, and the efficiency is high.

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

It is an object of the present invention to provide an electrical connector that facilitates the mounting of a flexible circuit board.

To achieve the above object, the present invention relates to an electrical connector comprising an insulating body having a top surface, a bottom surface and a rear surface; a plurality of conductive terminals fixed in the insulating body and having connecting legs extending rearwardly from the rear surface, The connecting legs are arranged in at least one row, each of the connecting legs has an abutting portion, a pressing portion disposed adjacent to the abutting portion, and a vertical distance between the abutting portion and the pressing portion of the connecting leg and the top surface The fixing member has a terminal accommodating portion for accommodating the connecting leg, a flexible circuit board accommodating portion communicating with the terminal accommodating portion, and a pressing structure disposed at a side of the terminal accommodating portion away from the flexible circuit board accommodating portion. The abutting portion is opposite to the abutting portion away from the flexible circuit board receiving portion, and is fixed to the insulating body after the fixing member is fixed to the insulating body;

The fixing member has a fixing position fixed to the insulating body. When the fixing member moves toward the fixing position, the pressing structure of the fixing member presses the pressing portion toward the flexible circuit board receiving portion. The abutting portion is caused to extend into the flexible circuit board receiving portion by the pressing portion.

As a further improvement of the present invention, the connecting legs are arranged in two rows in the up and down direction, and a clamping space for accommodating the flexible circuit board is formed between the two rows of connecting legs, and the abutting portions of the two rows of the connecting legs are formed. Facing the clamping space, the pressing portions of the two rows of the connecting legs are respectively disposed closer to the top surface or the bottom surface than the abutting portions; the fixing member has two corresponding to the two rows of connecting legs In the terminal accommodating portion, the flexible circuit board accommodating portion is located between the two terminal accommodating portions; when the fixing member moves toward the fixed position, the pressing structure of the fixing member is pressed against the clamping space. The pressing portion is configured such that the two rows of the abutting portions are gradually brought closer to each other by the pressing portion.

As a further improvement of the present invention, the rear side of the insulating body forms a positioning structure for cooperating with the fixing member, and the fixing member is provided with a matching structure matched with the positioning structure, and the positioning structure and the matching structure are combined with each other. The fixing member is in a fixed position and is fixed to the insulating body.

As a further improvement of the present invention, the rear side of the insulating body is diffused outwardly from the two sides to form a widening portion, and a through hole is formed in the widened portion, and a through hole is formed in the front and back. The locating structure is a positioning protrusion formed on the positioning elastic arm and protruding outwardly, and the engaging structure is a buckle protruding forward from both sides of the front end of the fixing member.

As a further improvement of the present invention, the positioning structure has positioning protrusions protruding outward from the rear side positions of the two sides of the insulating body, and the engaging structure is a buckle protruding from the two sides of the fixing member respectively.

As a further improvement of the present invention, the insulating body has a positioning wall extending rearward from the rear surface, and a positioning space formed between the positioning walls to receive the fixing member, protruding from the positioning wall toward the positioning space to form The wedge-shaped positioning block of the positioning structure is an elastic fastening arm formed on both sides of the fixing member to be buckled and positioned with the wedge-shaped positioning block.

As a further improvement of the present invention, the fixing member further has a predetermined position to a predetermined position on the insulating body, the predetermined position is located behind the fixed position, and when the fixing member is at the predetermined position, The free end of the connecting leg extends into the front end of the terminal receiving portion, and the pressing structure is in an uncompressed state corresponding to the pressing portion.

As a further improvement of the present invention, the insulating body has a positioning wall extending rearward from the rear surface, and a positioning space formed between the positioning walls to receive the fixing member. The positioning walls on both sides of the insulating body are respectively formed with front and rear through. a positioning hole, a positioning block disposed on the inner wall of the positioning hole and protruding toward the positioning hole, the positioning blocks on the inner side of each positioning hole are respectively disposed in pairs and spaced apart in the front-rear direction, so that the positioning block disposed in front of the positioning block Formed as the positioning structure, the positioning block disposed rearward is formed as a predetermined position structure for positioning the fixing member to the predetermined position, the fixing member has a main body portion receivable in the positioning space, and is formed on both sides of the main body portion And the latching arm can protrude into the positioning hole, and the latching arm is the mating structure, and is respectively latched with the corresponding positioning block at a predetermined position and a fixed position.

As a further improvement of the present invention, two positioning blocks on the inner side of each positioning hole are respectively formed by protruding from opposite inner walls of the positioning hole.

As a further improvement of the present invention, the insulating body or the fixing member is provided with a stopper mechanism for holding the flexible circuit board to prevent the flexible circuit board from moving backward.

As a further improvement of the present invention, when the stopping mechanism is disposed on the insulating body, the stopping mechanism is a cantilever extending rearward from a rear surface of the insulating body, and the cantilever end is formed to locate the flexible circuit board. And a fixing cavity is formed on the fixing member corresponding to the cantilever.

As a further improvement of the present invention, the stopping mechanism further includes a supporting arm disposed correspondingly above and below the cantilever, and a gap between the cantilever and the supporting arm for forming a flexible circuit board is formed on the supporting arm A retaining groove corresponding to the positioning protrusion is formed.

As a further improvement of the present invention, the fixing member is an integrally formed structural member. When the stopping mechanism is disposed on the fixing member, the fixing member is further provided with an elastic cantilever extending rearward of the terminal receiving portion. The cantilever end is formed with a positioning protrusion protruding toward the flexible circuit board receiving portion to position the flexible circuit board, and the flexible circuit board receiving portion and the positioning convex block are formed on the inner wall surface opposite to the positioning convex block. Let the slot.

As a further improvement of the present invention, wherein the fixing member is composed of two insulating blocks which are separately formed, two of the insulating blocks are stacked one on another, and each of the insulating blocks is formed with the terminal receiving portion, the flexible circuit The plate accommodating portion is formed between the two insulating blocks. When the stopping mechanism is disposed on the fixing member, the stopping mechanism protrudes from the at least one insulating block toward the flexible circuit board accommodating portion.

As a further improvement of the present invention, the rear side of the insulating body is formed with a positioning structure and a pre-positioning structure respectively matched with each insulating block, the predetermined bit structure is located at the rear side of the positioning structure, and each insulating block is provided with a a matching structure of the positioning structure and the predetermined position structure, wherein the insulating block is in the fixed position when the positioning structure and the matching structure are matched and fixed, and when the predetermined position structure and the matching structure are matched, the The insulating block is located at a predetermined position on the insulating body; when installed, the pre-positioning structure and the mating structure may pre-install the two insulating blocks to a predetermined position on the insulating body, and then jointly Move to the fixed position.

As a further improvement of the present invention, two of the insulating blocks are provided with fastening structures fixed to each other at both sides, and when installed, the two insulating blocks are firstly held together and then moved together to the insulation. A fixed position on the main body.

As a further improvement of the present invention, one of the two sides of the insulating block is rotatably fixed to the insulating body at one end of the insulating block, and the two insulating blocks are fixed at a fixed position on one side or away from the side of the rear surface. The fixed holding structure is fastened to each other, and the two insulating blocks rotate in opposite directions.

As a further improvement of the present invention, the insulating body is provided with a plurality of terminal slots penetrating front and rear, the conductive terminals are mounted forwardly from the rear surface to the insulating body, and further have a fixing portion fixed in the terminal slot and The abutment portion of the fixed portion extending forward.

According to a further improvement of the present invention, the insulating body further has a plurality of terminal slots penetrating from the front surface to the front surface and the front and rear surfaces, the conductive terminals being mounted rearward from the front surface to the insulating body and having a fixing fixed in the terminal slot And a soldering leg extending from the front surface of the fixing portion, the connecting leg extending rearward from the fixing portion.

The invention is provided by the matching arrangement of the fixing member and the insulating body, so that the welding between the flexible circuit board and the connecting leg of the conductive terminal can be achieved without welding, thereby achieving a firm electrical connection, and the overall structure is simple to set up, and the positioning is simple. Very convenient.

Referring to FIG. 1 to FIG. 5 together, a first preferred embodiment of the electrical connector 100 of the present invention is used. The electrical connector 100 is electrically connected to a flexible circuit board 200 and includes an insulating body. 1. A plurality of conductive terminals 2 and fixing members 3 fixed in the insulating body 1.

Referring to the first to third figures, the insulating body 1 has a front end surface 111, a top surface 112, a bottom surface 113, two side surfaces 114, a rear surface 115, and a plurality of front and rear front and back surfaces 111 and 115. Terminal slot 12. The terminal slots 12 are arranged in two rows in the vertical direction. The top of the insulating body 1 is provided with a latching elastic arm 13 for holding with a mating connector (not shown). The latching elastic arm 13 is formed to extend upward and rearward from the top surface 12. The top of the latching elastic arm 13 is provided with a locking protrusion 131, and the rear end is formed as a pressing operation portion 132.

The rear side of the insulating body 1 forms a positioning structure 14 for cooperating with the fixing member 3, and the fixing member 3 is provided with a matching structure 30 for cooperating with the positioning structure 14, and the positioning structure 14 and the mating structure 30 are mutually When combined, the fixing member 3 is fixed to a fixed position on the insulating body 1. In the embodiment, the rear side of the insulating body 1 is diffused outwardly from the top surface 112, the bottom surface 113, and the two side surfaces 114 to form a widened portion 15. A through hole 151 is formed in the widened portion 15 on the outer side of the two side faces 114. The through hole 151 is defined in the through hole 151. The positioning elastic arm 152 extends forwardly through the through hole 151. The perforations 151 are connected to the inner wall of one side of the side surface 114. The positioning structure 14 is a positioning protrusion formed on the positioning elastic arm 152 and protruding outward.

In addition, referring to the second and third figures, in the embodiment, the insulating body 1 is further provided with a stopping mechanism for holding the flexible circuit board 200 to prevent the flexible circuit board 200 from moving backward. Specifically, the stopper mechanism is disposed between the terminal groove 12 and the through hole 151, and is a cantilever 161 extending rearward from the rear surface 115 of the insulating body 1. The end of the cantilever 161 forms a positioning protrusion 1611 for positioning the flexible circuit board 200, and the rear side of the positioning protrusion 1611 is formed with a guiding slope. An opening 201 that is positioned and mated with the positioning protrusion 1611 is formed on the flexible circuit board 200. Preferably, the stopping mechanism further includes a supporting arm 162 disposed correspondingly above and below the cantilever 161, and a gap between the cantilever 161 and the supporting arm 162 for forming the flexible circuit board 200 is formed, and the supporting arm 162 is formed. A retaining groove 1621 corresponding to the positioning protrusion 1611 is formed thereon.

Referring to the first to fourth figures, in the embodiment, the plurality of conductive terminals 2 are mounted forwardly from the rear surface 115 to the insulating body 1 and have a fixing portion 21 fixed in the terminal slot 12, The abutting portion 22 extending forward from the fixing portion 21 and the connecting leg 23 extending rearward from the rear surface 115.

The fixing portion 21 and the abutting portion 22 are arranged in two rows corresponding to the terminal slots 12 . The fixing portion 21 has a U-shape, and a barb 211 that interferes with the inner wall surface of the terminal groove 12 is formed on the outward end surface of the U-shaped fixing portion 21. The abutting portion 22 is substantially bent into a rectangular tubular shape for accommodating a needle-shaped docking terminal (not shown), and the butting portion 22 is internally bent to form a clamping arm 221 for holding a needle-shaped butt terminal.

In the embodiment, the connecting legs 23 are arranged in a row. Specifically, the connecting legs 23 corresponding to the lower row abutting portions 22 are bent upward to be disposed in the same row as the upper row connecting legs 23. Each of the connecting legs 23 has an abutting portion 231 for abutting the flexible circuit board 200 to be electrically connected to the flexible circuit board 200 , and a pressing portion 232 disposed adjacent to the abutting portion 231 . The abutting portion 231 of the connecting leg 23 and the pressing portion 232 are different in vertical distance from the top surface 112.

In the embodiment, the abutting portion 231 is disposed adjacent to the rear surface 115 and protrudes upward. The pressing portion 232 extends rearward from the rear end of the abutting portion 231 and downwardly and downwardly. The end of the connecting leg 23 is located in a different plane from the abutting portion 231, so that the pressing portion 232 can move the abutting portion 231 upward when the pressing portion 232 is pressed upward.

Referring to the second to fifth figures, the fixing member 3 has a terminal receiving portion 31 for receiving the connecting leg 231, a flexible circuit board receiving portion 32 communicating with the terminal receiving portion 31, and being disposed at the terminal. The accommodating portion 31 is away from the pressing structure 33 on the side of the flexible circuit board accommodating portion 32. The pressing portion 232 is away from the flexible circuit board accommodating portion 32 and is fixed to the insulating body 1 after the fixing member 3 is fixed to the insulating structure 1 . When the fixing member 3 is moved toward the fixed position, the pressing structure 33 of the fixing member 3 presses the pressing portion 232 toward the flexible circuit board accommodating portion 32, so that the abutting portion 231 is abutted. The pressing portion 232 extends into the flexible circuit board receiving portion 32 to be in abutting connection with the flexible circuit board 200.

Specifically, in the embodiment, the fixing member 3 is an integrally formed structural member, and the whole is substantially in the form of a rectangular block. The terminal receiving portion 31 corresponds to a row of the connecting legs 23 from the fixing member 3. The front end facing rear recess is formed as one, and is disposed in a channel shape which is connected to the left and right. The flexible circuit board accommodating portion 32 is located above the terminal accommodating portion 31 and penetrates the fixing member 3 forward and backward to facilitate the mounting of the flexible circuit board 200 from the rear to the front. The pressing structure 33 is specifically an inner wall of the terminal receiving portion 31 away from the side of the flexible circuit board receiving portion 32. The front side of the inner wall is formed as a guiding wall 331 extending obliquely outward, and the rear side is horizontal. The pressure-resistant wall 332 extends. Therefore, when the fixing member 3 moves toward the fixed position, the guiding wall 331 abuts against the pressing portion 232, and then gradually presses the pressing portion 232 to bring it toward the flexible circuit board accommodating portion 32. The connecting portion 231 moves and is finally positioned on the pressing wall 332 to maintain the abutting state of the abutting portion 231 and the flexible circuit board 200.

In addition, the mating structure 30 for fixing and engaging the insulating body 1 on the fixing member 3 is specifically a buckle protruding forward from the front end faces of the fixing member 3 respectively. The buckle protrudes forwardly from the front end surface in a substantially sheet shape, and forms a fastening groove 301 for engaging with the positioning structure 14 (ie, the positioning protrusion) on the insulating body 1. Of course, the engaging structure 30 can also be a snap arm, and a latching protrusion that is fastened to the positioning structure 14 is formed at the front end of the latching arm, which can also achieve the purpose of the invention. Moreover, corresponding to the stop mechanism on the insulating body 1, a retaining cavity 34 is formed between the mating structure 30 and the terminal receiving portion 31 on the fixing member 3. When the fixing member 3 is fixed to the insulating body 1, the stopping mechanism is received in the retaining cavity 34.

Preferably, in the present invention, the fixing member 3 further has a predetermined position to a predetermined position on the insulating body 1, the predetermined position is located behind the fixed position, and the fixing member 3 is located at a predetermined position. The free end of the connecting leg 23 extends into the front end of the terminal receiving portion 31, and the pressing structure 33 is in an uncompressed state corresponding to the pressing portion 232.

In this embodiment, the predetermined position of the fixing member 3 is such that the mating structure 30 protrudes into the through hole 151 of the two sides of the insulating body 1 and has not yet formed a position for holding and fixing with the positioning structure 14; The mating structure 30 is clamped between the positioning elastic arm 152 and the inner wall of the through hole 151 by being abutted against the positioning elastic arm 152, thereby prepositioning the fixing member 3 to the insulating body 1.

The arrangement can facilitate the subsequent insertion of the flexible circuit board 200, that is, the fixing member 3 is pre-positioned to the predetermined position of the insulating body 1 so that the structure of each part of the fixing member 3 is in one-to-one correspondence with the corresponding structure on the insulating body 1. At this time, the flexible circuit board 200 can be extended from the rear of the fixing member 3 through the flexible circuit board accommodating portion 32 to the position of the connecting leg 23 of the conductive terminal 2, so that the golden finger on the flexible circuit board 200 (not shown) Corresponding to the abutting portion 231, while the stopper structure is engaged with the opening 201 on the flexible circuit board 200 to prevent the flexible circuit board 200 from moving backward, in which case the flexible circuit board 200 is inserted with zero insertion force insertion. It is very simple and quick to install; after the flexible circuit board 200 is inserted, only the fixing member 3 needs to be moved from the predetermined position to the fixed position, and the abutment of the pressing structure 33 and the pressing portion 232 can be achieved. The portion 231 is in abutting contact with the gold finger, and the fixing member 3 is held at a fixed position of the insulating body 1 by the cooperation of the positioning structure 14 and the mating structure 30.

As can be seen from the above, the present invention is provided by the fixing member 3 and the insulating body 1 so that the flexible circuit board 200 and the connecting leg 23 of the conductive terminal 2 can be brought into close contact without welding, thereby forming a stable electrical property. Connection, and the overall structure is simple to set up, and the installation and positioning are very convenient.

Referring to Figures 6 through 8, there is shown a second preferred embodiment of the electrical connector 100' of the present invention. The electrical connector 100' in this embodiment is substantially the same as in the first preferred embodiment, and also includes an insulating body 1', a plurality of conductive terminals 2' and a fixing member 3'; however, compared to the first embodiment Said, with the following differences.

In this embodiment, the through hole 151' of the widened portion 15' of the insulating body 1' is formed adjacent to the two side faces 114', and the positioning elastic arm is not formed inside the through hole 151', and the positioning structure 14' is The positioning protrusions are formed directly from the rear sides of the two side faces 114' of the adjacent through holes 151', respectively.

Compared with the first embodiment, the connecting pins 23' are arranged in two rows in the up and down direction behind the insulating body 1', and are formed between the two rows of connecting legs 23' to accommodate the flexible circuit board. In the 200' clamping space 230', the abutting portions 231' of the two rows of the connecting legs 23' project toward the clamping space 230', and the two pressing portions 232' of the connecting legs 23' are compared with each other. The abutting portions 231' are disposed outwardly adjacent to the top surface 112' or the bottom surface 113', respectively. Further, the pressing portion 232' is connected between the fixing portion 21' and the abutting portion 231'.

In this embodiment, the conductive terminal 2' has a U-shaped tail portion 24' extending rearward from the rear side of the fixing portion 21' to the rear surface 115'. The U-shaped tail portion 24' of the upper row is open upward, and the lower row is U-shaped. The tail portion 24' is open downward; the connecting leg 23' is torn and bent from a wall surface parallel to the top surface 112' of the U-shaped tail portion 24'.

Correspondingly, the fixing member 3' has two terminal receiving portions 31' corresponding to the two rows of connecting legs 23', and the flexible circuit board receiving portion 32' is located between the two terminal receiving portions 31' Of course, the fixing member 3 ′ also forms a receiving groove 34 ′ for receiving the two side walls of the U-shaped tail portion 24 ′, a ridge formed between the receiving groove 34 ′ and protruding into the inside of the U-shaped tail portion 24 ′ 35'. The accommodation groove 34' communicates with the terminal accommodating portion 31' vertically. The bottom wall of the ridge 35' constitutes an outer wall surface of the terminal accommodating portion 31', and is further formed as the pressing structure 33'. When the fixing member 3' moves toward the fixed position, the pressing portion 33' abuts against the pressing portion 232', and then gradually presses the pressing portion 232' toward the clamping space 230', so that the two rows are The abutting portion 231' is gradually brought closer to the flexible circuit board 200' by the pressing portion 232'.

In addition, the fitting structure 30' on the fixing member 3' in the embodiment is the same as that in the first preferred embodiment, and is a buckle which protrudes forward from both sides of the front end surface of the fixing member 3'. The buckle protrudes forwardly from the front end surface in a substantially sheet shape, and forms a catching groove 301' for holding with the positioning structure 14' (i.e., the aforementioned positioning projection) on the insulating body 1'. Of course, the engaging structure 30' can also be a snap arm, and a snap protrusion that is fastened to the positioning structure 14' is formed at the front end of the snap arm, which can also achieve the purpose of the invention.

In this embodiment, the electrical connector 100' is substantially similar to the first preferred embodiment in that the fixing member 3' is first fixed to the predetermined position of the insulating body 1', and the mating structure 30 is at the predetermined position. 'Cooperating with the inner wall of the perforation 151'; then, the flexible circuit board 200' extends from the rear to the front through the flexible circuit board receiving portion 32' into the clamping space 230', so that the golden finger on the flexible circuit board 200' 202' corresponds to the abutting portion 231'. In this case, the flexible circuit board 200' is inserted into the zero insertion force, which is very simple and quick; after the flexible circuit board 200' is inserted, only the fixing member is needed. 3' moves from the predetermined position to the fixed position, so that the abutting portion 231' and the gold finger 202' can be abutted by the cooperation of the pressing structure 33' and the pressing portion 232', and by the positioning structure The fixing member 3' is held at a fixed position of the insulating body 1' in cooperation with the mating structure 30'.

Referring to the ninth to twelfth drawings, a third preferred embodiment of the electrical connector 100" of the present invention is shown. In the embodiment, the electrical connector 100" also includes an insulating body 1" and a plurality of conductive terminals. 2" and the fixing member 3"; the structure of the electrical connector 100" in this embodiment is similar to that of the second preferred embodiment, but the following differences are obtained compared to the second preferred embodiment.

The latching arm 13" at the top of the insulating body 1" is made of a metal material and is positioned on the top surface 112". Further, the rear side of the insulating body 1" does not form the aforementioned widening portion 15'. In the present embodiment, the insulating body 1" has a positioning wall 171" which is outwardly diffused from the rear surface 115" and extends rearward, and is formed between the positioning walls 171" to receive the positioning space 172 of the fixing member 3". ". The positioning walls 171" on both sides are respectively formed with positioning holes 173" penetrating forward and backward, and positioning blocks 174" disposed on the inner wall of the positioning holes 173" and protruding toward the positioning holes 173". The inner side of each positioning hole 173" The positioning blocks 174 ′′ are respectively disposed in pairs and are spaced apart in the front-rear direction, and respectively protrude from the opposite inner walls of the positioning holes 173 ′′; respectively, so that the positioning blocks 174 ′ disposed forwardly are formed as the positioning structure. The rear positioning block 174" is formed to position the fixing member 3" to the predetermined position of the aforementioned predetermined position.

The arrangement of the conductive terminals 2" is similar to that of the second preferred embodiment. However, in the embodiment, the U-shaped tail portion is not formed on the rear side of the conductive terminal 2", but extends directly from the fixing portion 21". Connect the foot 23". In this embodiment, the abutting portion 231" of the connecting leg 23" is connected between the fixing portion 21" and the pressing portion 232".

The fixing member 3" is formed to have a main body portion 31" receivable in the positioning space 172", and a fastening arm 32 formed on both sides of the main body portion 31" and protruding into the positioning hole 173"" . The latching arm 32 ′′ is the mating structure, and the long latching hole 321 ′′ is formed on the latching arm 32 ′′, and is respectively fastened to the corresponding positioning block 174 ′′ at a predetermined position and a fixed position; When the positioning structure (ie, the positioning block 174 disposed in front) and the mating structure (ie, the latching arm 32 ′′) are fixed and fixed, the fixing member 3′′ is in the fixed position, and the predetermined structure is The fixing member 3" is located at a predetermined position on the insulating body 1" when the positioning member 174") is matched with the mating structure (ie, the latching arm 32");

The fixing member 3 ′′ can be an integrated structure, and two terminal accommodating portions respectively corresponding to the two rows of connecting legs 23 ′′ and two terminal accommodating portions are formed on the integrated fixing member. The flexible circuit board accommodating portion; in this case, the arrangement of the shackle structure may be similar to the corresponding structure in the fifth embodiment hereinafter.

In this embodiment, the fixing member 3" is disposed in a split manner, and includes two insulating blocks 33" separately formed, and the two insulating blocks 33" are stacked on top of each other. Each of the insulating blocks 33" has Forming the intermediate portion of the main body portion 31" and the latching arms 32" on both sides of the intermediate portion; the two sides of the insulating body 1" are respectively formed with two sets of the positioning holes 173" and the positioning block 174", respectively The latching arm 32 ′ on each of the insulating blocks 33 ′′ is correspondingly positioned, wherein each of the insulating blocks 33 ′′ is formed with the terminal receiving portion 331 ′′; in the embodiment, each of the terminal receiving portions 331 ” The plurality of receiving slots corresponding to each of the connecting legs 23" and the partitioning walls of the adjacent receiving slots are respectively included. The flexible circuit board receiving portion 34" is formed between the two insulating blocks 33". The groove is away from the inner wall of one side of the flexible circuit board accommodating portion 34" to form a pressing structure 3311" for pressing the pressing portion 232", and the pressing structure 3311" is disposed in the same manner as the foregoing first or second embodiment. The setting of the pressure-resistant structure.

In addition, in the embodiment, the stopping mechanism is disposed on the fixing member 3 ′′, and is specifically configured to protrude from the at least one insulating block 33 ′′ toward the flexible circuit board accommodating portion 34 ′. ".

During installation, the pre-positioning structure and the mating structure are mutually fastened such that two of the insulating blocks 33" are pre-mounted to a predetermined position on the insulating body 1", respectively. Secondly, the flexible circuit board 200 can be "passing through the flexible circuit board receiving portion 34" from the rear and forward, and extending between the two rows of connecting legs 23", the two sides of the flexible circuit board 200" respectively have an elongated opening corresponding to the stop mechanism 201", and after the flexible circuit board 200" is installed, the stop mechanism is located in the elongated opening 201"; finally, the two insulating blocks 33" are moved together to be mounted to the fixed position, During the moving process, the pressing structure 3311 ′′ gradually presses the pressing portion 232 ′′, so that the two rows of the abutting portions 231 ′′ are gradually brought closer to the flexible circuit board by the pressing portion 232 ′′. 200".

Of course, as another preferred embodiment, a fastening structure (not shown) for vertically fastening the two insulating blocks 33 ′′ may be disposed, so that the flexible circuit board 200 can be installed during installation. The flexible circuit board accommodating portion 34" is first mounted between the two insulating blocks 33", and then the two insulating blocks 33" are fastened to each other and then mounted to the insulating body 1" from the rear to the front, which also achieves cost. The purpose of the invention.

Moreover, as shown in the thirteenth and fourteenth drawings, as another preferred embodiment, the two positioning blocks 33" and the insulating body 1" may not be provided with the positioning block 174" and the holding arm. 32", the two sides of the two insulating blocks 33" are rotatably fixed to the positioning walls 171" on both sides of the insulating body 1" near both ends of the rear surface, and on both sides of the two insulating blocks 33" or One side away from the rear surface is provided with a fastening structure (not shown) for fastening the two insulating blocks 33" to each other at a fixed position, and the two insulating blocks 33" are rotated in opposite directions; First, the two insulating blocks 33" are respectively rotated outward to open the flexible circuit board 200" between the connecting legs 23", and then the two insulating blocks 33" are rotated toward each other to press the pressing structure 3311" The pressing portion 232" further causes the two rows of the abutting portions 231" to gradually approach the flexible circuit board 200" under the driving of the pressing portion 232", while the two insulating blocks 33" are mutually engaged.

Referring to Figures 15 through 19, a fourth preferred embodiment of the electrical connector 400 of the present invention is shown. The electrical connector 400 of the embodiment also includes an insulating body 4, a plurality of conductive terminals 5 and a fixing member 6. The structure of the electrical connector 400 in this embodiment is similar to that of the third preferred embodiment, but The third preferred embodiment still has the following differences.

The insulating body 4 also has a positioning wall 471 that is outwardly diffused from the rear surface 415 and extends rearward, and a positioning space 472 formed between the positioning walls 471 to receive the fixing member 6. However, in the present embodiment, the positioning holes 471 and the positioning block in the third preferred embodiment are not disposed on the positioning walls 471 on both sides, and the positioning walls 471 on the top and bottom portions respectively protrude toward the inner surface of the positioning space 472. A pair of wedge-shaped positioning blocks 473 are provided. The wedge-shaped positioning block 473 is formed as a positioning structure for fixing the fixing member 6 to a fixed position. The positioning space 472 on the rear side of the wedge-shaped positioning block 473 can be regarded as a predetermined position structure for pre-positioning the fixing member 6.

The arrangement of the conductive terminals 5 is similar to that of the third preferred embodiment. However, in the third preferred embodiment, the fixing portions 21" of the two rows of conductive terminals 2" are disposed away from each other, and the connecting legs 23" are In the embodiment, the fixing portions 51 of the two rows of the conductive terminals 5 are arranged in the same direction, and the connecting legs 53 are respectively extended rearward from the corresponding positions of the fixing portions 51. Therefore, compared with the second preferred embodiment, the maximum spacing between the two rows of connecting legs 53 in this embodiment is large. However, the abutting portion 531 of the connecting leg 53 is still connected between the fixing portion 51 and the pressing portion 532.

In this embodiment, the fixing member 6 also includes two insulating blocks 61 which are separately formed, and the two insulating blocks 61 are stacked on top of each other, and the latching arms 611 with the upper and lower latching positions are respectively disposed on the two sides. And a snap block 612. Each of the insulating blocks 61 is formed with a terminal receiving portion 62. In the embodiment, the terminal receiving portion 62 is disposed in a left-right communication type to collectively receive the connecting legs 53 of the same row of conductive terminals 5. The flexible circuit board accommodating portion 63 is formed between the two insulating blocks 61. Each of the terminal accommodating portions 62 is formed away from the inner wall of one side of the flexible circuit board accommodating portion 63 to form a pressing structure 621 for pressing the pressing portion 532.

In addition, the mating structure is an elastic latching arm 64 formed on the outer wall of each insulating block 61 to be buckled and positioned with the wedge-shaped positioning block 473. The shackle structure 613 is a protrusion 613 protruding from one of the insulating blocks 61 toward the other insulating block 61. The other insulating block 61 is provided with a groove 614 corresponding to the protruding post 613.

In use, the flexible circuit board 200 is first positioned on one of the insulating blocks 61 by the protrusions 613; secondly, the two insulating blocks 61 are mutually carded by the aforementioned snap arms 611 and the snap blocks 612. The flexible circuit board 200 is fixed in the flexible circuit board receiving portion 62 formed between the two insulating blocks 61; then, the fixing member 6 and the flexible circuit board 200 are moved forward together along the positioning wall 471 from the rear of the positioning space 472. The pressing structure 621 gradually presses against the pressing portion 532 during the moving process, so that the two rows of the abutting portions 531 are gradually driven by the pressing portion 532. The flexible circuit board 200 is clamped close to it.

Referring to the twenty-fifth to twenty-fifthth drawings, a fifth preferred embodiment of the electrical connector 700 of the present invention is shown. The foregoing embodiments are all used for plugging with a pair of connectors, thereby achieving electrical conduction between the flexible circuit board and the docking connector. The electrical connector 700 in the present embodiment is directly used to connect a circuit board 800 and the foregoing flexible circuit board 200, and also includes an insulating body 7, a plurality of conductive terminals 8 and a fixing member 9.

The structure of the insulating body 7 is similar to that of the third preferred embodiment, and has a front surface 716 opposite to the rear surface 715 and a plurality of terminal slots 72 extending through the front and rear, substantially the same as in the third preferred embodiment. The positioning wall 771, the positioning space 772, the positioning hole 773, and the positioning block 774. The front surface 716 may be a front end surface of the insulating body 7, or may be a surface formed opposite to the rear surface 715 after being recessed from the front end surface.

However, in the present embodiment, the structure of the conductive terminal 8 is different from that of the third preferred embodiment in that it is mounted rearwardly from the front surface 716 to the insulating body 7 in comparison with the third preferred embodiment. And a fixing portion 81 extending in the terminal groove 72 and a soldering leg 84 extending from the front end of the fixing portion 81 to the front surface 716. The connecting leg 83 extends rearward from the rear end of the fixing portion 81. The soldering leg 84 is used for soldering and connecting the circuit board 800; the connecting leg 83 is used for electrically connecting the flexible circuit board 200, so that the circuit board 800 and the flexible circuit board 200 are electrically connected by the electrical connector 700. Sexual conduction. The structure of the connecting leg 83 is the same as that in the third preferred embodiment.

In addition, the fixing member 9 for positioning the flexible circuit board 200 is a unitary structure in the embodiment, and has a main body portion 91 that can be received in the positioning space 772, and is formed on both sides of the main body portion 91 and can protrude. The latching arm 92 extends into the positioning hole 773. The main body portion 91 is formed with two terminal accommodating portions 93 corresponding to the two rows of connecting legs 83, and a flexible circuit board accommodating portion 94 between the two terminal accommodating portions 93. The terminal accommodating portion 93 is formed away from the flexible circuit board. The pressing structure 95 on the side of the receiving portion 94. The latching arm 92 is the mating structure, and the latching hole 921 is formed on the latching hole 921 to be latched with the corresponding positioning block 774 at a predetermined position and a fixed position, respectively. When the positioning block 774) disposed in front and the mating structure (ie, the latching arm 92) are matched and fixed, the fixing member 9 is in the fixed position, and the predetermined positioning structure (ie, the positioning block 774 disposed behind) When the mating structure (ie, the latching arm 92) is mated, the fixing member 9 is located at a predetermined position on the insulating body 7;

In addition, the stopper mechanism is also disposed on the fixing member 9. Specifically, the fixing member 9 is further provided with an elastic cantilever 96 extending rearward as a shackle mechanism on the outer sides of the terminal accommodating portion 93. The end of the cantilever 96 is formed with a positioning protrusion 961 protruding toward the flexible circuit board receiving portion 94 to position the flexible circuit board 200. The flexible circuit board receiving portion 94 is formed and positioned on the inner wall surface corresponding to the positioning protrusion 961. The bump 961 opposes the groove 97.

In use, the fixing member 9 can be firstly positioned to the predetermined position of the insulating body 7 by the fastening arm 92 and the positioning block 774 on the rear side; secondly, the electrical connector 700 in the embodiment is borrowed as a whole. Soldering the soldering leg 84 to the circuit board 800; then, the flexible circuit board 200 is passed through the flexible circuit board receiving portion 94 from the rear to the front and extends between the abutting portions 831 of the two rows of connecting legs 83, the positioning bumps The rear end of the 961 is formed with an inclined extending guiding surface, so that when the flexible circuit board 200 is inserted, the cantilever 96 can be deformed outwardly; finally, the fixing member 9 is pushed to be mounted to the fixed position. And the fastening arm 92 is fixedly coupled with the positioning block 774 on the front side; during the movement, the pressing structure 95 gradually presses against the pressing portion 832 of the connecting leg 83, so that the two rows of the abutting portion The 831 is gradually brought closer to the clamping portion 832 to clamp the flexible circuit board 200, thereby achieving electrical conduction between the circuit board 800 and the flexible circuit board 200.

In summary, the present invention is provided by the cooperation of the fixing members 3, 3', 3", 6, 9 with the insulating bodies 1, 1', 1", 4, 7 such that the flexible circuit boards 200, 200', 200 "There is no need to solder between the connecting legs 23, 23', 23", 53, 83 of the conductive terminals 2, 2', 2", 5, 8 to achieve close contact, that is, to form a stable electrical connection, and the whole The structure is simple to set up and the installation and positioning are very convenient.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

100, 100', 400, 700‧‧‧ electrical connectors
1, 1 ', 1", 4, 7‧ ‧ insulation main body
111‧‧‧ front end
112, 112', 112" ‧ ‧ top
113, 113'‧‧‧ bottom
114, 114'‧‧‧ side
115, 115', 115", 415, 715‧‧‧ rear surface
716‧‧‧ front surface
12, 72‧‧‧ terminal slot
13, 13" ‧‧‧Locking arm
131‧‧‧Lock projection
132‧‧‧Depressing operation department
14, 14'‧‧‧ Positioning structure
15, 15' ‧ ‧ widening
151, 151'‧‧‧ perforation
152‧‧‧ Positioning arm
161, 96‧‧‧ cantilever
1611, 961‧‧‧ positioning bumps
162‧‧‧Support arm
1621, 97‧‧‧Let the slot
171", 471, 771 ‧ ‧ positioning wall
172”, 472, 772‧‧‧ positioning space
173”, 773‧‧‧ positioning holes
174", 473, 774‧‧‧ positioning blocks
2, 2', 2", 5, 8‧‧‧ conductive terminals
200, 200', 200" ‧ ‧ flexible circuit boards
201, 201" ‧ ‧ openings
202'‧‧‧Gold Finger
21, 21', 21", 51, 81‧ ‧ fixed parts
211‧‧‧ barbed
22‧‧‧Docking Department
221‧‧‧Clamping arm
23, 23', 23", 53, 83‧‧‧ connecting feet
230'‧‧‧Clamping space
231, 231 ', 231", 531, 831 ‧ ‧ abutment
232, 232', 232", 532, 832‧‧
84‧‧‧welding feet
24'‧‧‧ tail
3, 3', 3", 6, 9‧‧‧ fixing parts
30, 30' ‧ ‧ mate structure
301, 301'‧‧‧ holding slot
31, 31', 331", 62, 93‧ ‧ terminal housing
32, 32', 34", 63, 94‧‧‧ Flexible circuit board accommodating department
321", 921‧‧"
33, 33', 3311", 621, 95‧ ‧ PRESSURE STRUCTURE
331‧‧‧ Guide wall
332‧‧‧Resist the wall
34‧‧‧Let the cavity
34'‧‧‧ Containment trough
35'‧‧‧ ribs
36"‧‧‧ convex hull
31", 91‧‧‧ main body
33", 61‧‧ ‧ insulating block
611‧‧‧ buckle arm
612‧‧‧Snap block
613‧‧‧ stud
614‧‧‧ Groove
64, 92, 32" ‧ ‧ holding arms
800‧‧‧ boards

The first figure is a perspective view of a first embodiment of the present invention in which an electrical connector is mated with a flexible circuit board. The second figure is an exploded perspective view of the first figure. The third figure is an exploded perspective view of another angle of the first figure. The fourth figure is a schematic cross-sectional view of the first embodiment showing the electrical connector in a predetermined state in cooperation with the flexible circuit board, showing that the connecting legs of the conductive terminals have not yet clamped the flexible circuit board. Figure 5 is a cross-sectional view showing the first embodiment of the electrical connector in a fixed state in cooperation with the flexible circuit board, showing that the connecting legs of the conductive terminals are clamped to the flexible circuit board. Figure 6 is a partially exploded view of the electrical connector and the mating flexible circuit board of the second preferred embodiment of the present invention. Figure 7 is a cross-sectional view showing the sixth embodiment of the electrical connector in a pre-positioned state in cooperation with the flexible circuit board, showing that the connecting legs of the conductive terminals have not yet clamped the flexible circuit board. Figure 8 is a cross-sectional view showing the sixth embodiment of the electrical connector in a fixed state in cooperation with the flexible circuit board, showing that the connecting legs of the conductive terminals are clamped to the flexible circuit board. Figure 9 is a partially exploded view of the electrical connector and the mating flexible circuit board in the third preferred embodiment of the present invention. The tenth figure is a view of another angle of the ninth figure. The eleventh figure is a cross-sectional view of the flexible circuit board when the electrical connector is in the predetermined position, and the connecting leg of the conductive terminal has not yet clamped the flexible circuit board. Figure 12 is a cross-sectional view of the ninth figure showing the electrical connector in a fixed state in cooperation with the flexible circuit board, showing that the connecting leg of the conductive terminal is clamped to the flexible circuit board. Figure 13 is a cross-sectional view showing a coupling of a flexible circuit board when the electrical connector is in a predetermined position in another preferred embodiment of the present invention, showing that the connecting leg of the conductive terminal has not clamped the flexible circuit board. Figure 14 is a cross-sectional view showing the elliptical connection of the electrical connector in a fixed state with the flexible circuit board, showing that the connecting legs of the conductive terminals are clamped to the flexible circuit board. Fig. 15 is a partially exploded view of the electrical connector and the mating flexible circuit board in the fourth preferred embodiment of the present invention. Figure 16 is a further exploded view of the fifteenth figure. Figure 17 is a view of another angle of the sixteenth figure. Figure 18 is a cross-sectional view showing the fifteenth figure showing the electrical connector in a predetermined state in cooperation with the flexible circuit board, showing that the connecting leg of the conductive terminal has not clamped the flexible circuit board. Figure 19 is a cross-sectional view showing the fifteenth figure showing the electrical connector in a fixed state in cooperation with the flexible circuit board, showing that the connecting leg of the conductive terminal is clamped to the flexible circuit board. Figure 20 is a perspective assembled view of an electrical connector in accordance with a fifth preferred embodiment of the present invention in cooperation with a circuit board and a flexible circuit board. The twenty-first figure is a view of another angle of the twentieth figure; the twenty-second figure is an exploded view of the electrical connector shown in the twentieth figure; the twenty-third figure is the other angle of the twenty-second figure Figure 24 is a cross-sectional view of the circuit board and the flexible circuit board when the electrical connector is in the predetermined position, showing that the connecting legs of the conductive terminals have not clamped the flexible circuit board. Figure 25 is a cross-sectional view showing the electrical connector in a fixed state in cooperation with the circuit board and the flexible circuit board, showing that the connecting leg of the conductive terminal is clamped to the flexible circuit board.

100‧‧‧Electrical connector

1‧‧‧Insulation body

112‧‧‧ top surface

113‧‧‧ bottom

221‧‧‧Clamping arm

231‧‧‧Apartment

232‧‧‧Resistance Department

3‧‧‧Fixed parts

31‧‧‧Terminal housing department

32‧‧‧Flexible Circuit Board Housing

331‧‧‧ Guide wall

332‧‧‧Resist the wall

200‧‧‧Flexible circuit board

Claims (19)

An electrical connector comprising: an insulating body having a top surface, a bottom surface and a rear surface; a plurality of conductive terminals fixed in the insulating body and having connecting legs extending rearwardly from the rear surface, the connecting legs being arranged in at least one Each of the connecting legs has an abutting portion and a pressing portion disposed adjacent to the abutting portion, and the abutting portion and the pressing portion of the connecting leg are different from each other in a vertical distance; the fixing member has a function The pressing portion for accommodating the terminal accommodating portion of the connecting leg and the flexible circuit board accommodating portion communicating with the terminal accommodating portion and the terminal accommodating portion away from the flexible circuit board accommodating portion The connecting portion is away from the flexible circuit board receiving portion and is abutted against the pressing structure after the fixing member is fixed to the insulating body; wherein the fixing member has a fixed position fixed to the insulating body, and the fixing portion is fixed When the piece moves toward the fixed position, the pressing structure of the fixing member presses the pressing portion toward the flexible circuit board receiving portion, so that the abutting portion protrudes into the flexible circuit by the pressing portion. Board housing. The electrical connector of claim 1, wherein the connecting legs are arranged in two rows in the up and down direction, and a clamping space for accommodating the flexible circuit board is formed between the two rows of connecting legs, two rows. The abutting portion of the connecting leg protrudes toward the clamping space, and the pressing portions of the two rows of the connecting legs are respectively disposed closer to the top surface or the bottom surface than the abutting portion; the fixing member has two Two terminal receiving portions corresponding to the row connecting legs, the flexible circuit board receiving portion being located between the two terminal receiving portions; and the pressing structure of the fixing member when the fixing member moves toward the fixing position The pressing portion is pressed toward the clamping space such that the two rows of the abutting portions are gradually brought closer to each other by the pressing portion. The electrical connector of claim 1, wherein the rear side of the insulating body forms a positioning structure for cooperating with the fixing member, and the fixing member is provided with a matching structure matched with the positioning structure, When the positioning structure and the mating structure are combined with each other, the fixing member is in a fixed position and is fixed to the insulating body. The electrical connector of claim 3, wherein the rear side of the insulating body is outwardly diffused from the two sides to form a widened portion, and a through hole is formed in the widened portion, respectively. The positioning structure is a positioning protrusion extending forwardly and extending through the perforation. The positioning structure is a positioning protrusion formed on the positioning elastic arm and protruding outward. The mating structure protrudes from the front sides of the fixing member respectively. Stretch out the buckle. The electrical connector of claim 3, wherein the positioning structure has positioning protrusions respectively protruding outward from the rear side positions of the two sides of the insulating body, and the mating structure is respectively forward from both sides of the fixing member Squeezing the buckle. The electrical connector of claim 3, wherein the insulating body has a positioning wall extending rearward from the rear surface, and a positioning space formed between the positioning walls to receive the fixing member, from the positioning wall And a wedge-shaped positioning block protruding toward the positioning space to form the positioning structure, wherein the matching structure is an elastic fastening arm formed on both sides of the fixing member to be buckled and positioned with the wedge-shaped positioning block. The electrical connector of claim 3, wherein the fixing member further has a predetermined position to a predetermined position on the insulating body, the predetermined position is located behind the fixed position, and the fixing member When the pre-positioning position is reached, the free end of the connecting leg extends into the front end of the terminal receiving portion, and the pressing structure is in an uncompressed state corresponding to the pressing portion. The electrical connector of claim 7, wherein the insulating body has a positioning wall extending rearward from the rear surface, and a positioning space formed between the positioning walls to receive the fixing member, on both sides of the insulating body. The positioning walls are respectively formed with positioning holes penetrating forward and backward, positioning blocks disposed on the inner wall of the positioning holes and protruding toward the positioning holes, and the positioning blocks on the inner side of each positioning hole are respectively disposed in pairs and spaced apart in the front-rear direction. The positioning block disposed in front is formed as the positioning structure, and the positioning block disposed behind is formed as a predetermined position structure for positioning the fixing member to the predetermined position, and the fixing member has a main body portion receivable in the positioning space. And a fastening arm formed on two sides of the main body portion and protruding into the positioning hole, wherein the fastening arm is the mating structure, and corresponding to the positioning block respectively at a predetermined position and a fixed position Interlocked. The electrical connector of claim 8, wherein the two positioning blocks on the inner side of each positioning hole are respectively formed by protruding from opposite inner walls of the positioning hole. The electrical connector of claim 2, wherein the insulating body or the fixing member is provided with a stopper mechanism for holding the flexible circuit board to prevent the flexible circuit board from moving backward. The electrical connector of claim 10, wherein when the stopping mechanism is disposed on the insulating body, the stopping mechanism is a cantilever extending rearward from a rear surface of the insulating body, the cantilever end forming useful To locate the positioning bump of the flexible circuit board, a corresponding cavity is formed on the fixing member corresponding to the cantilever. The electrical connector of claim 11, wherein the stopping mechanism further comprises a supporting arm disposed correspondingly to the upper and lower sides of the cantilever, wherein the cantilever and the supporting arm are formed with a flexible circuit board extending therein a clearance groove is formed on the support arm corresponding to the positioning protrusion. The electrical connector of claim 10, wherein the fixing member is an integrally formed structural member, and when the stopping mechanism is disposed on the fixing member, the fixing member is further disposed outside the terminal receiving portion. And a resilient cantilever extending rearwardly, the cantilever end is formed with a positioning protrusion protruding toward the flexible circuit board receiving portion to position the flexible circuit board, and the flexible circuit board receiving portion is formed on the inner wall surface corresponding to the positioning protrusion There is a yield slot opposite the positioning bump. The electrical connector of claim 10, wherein the fixing member is composed of two insulating blocks that are separately formed, two insulating blocks are stacked on top of each other, and the terminal is formed on each insulating block. The accommodating portion is formed between the two insulating blocks. When the stopping mechanism is disposed on the fixing member, the stopping mechanism is from at least one insulating block toward the flexible circuit. The plate receiving portion is formed to protrude. The electrical connector of claim 14, wherein the rear side of the insulating body is formed with a positioning structure and a predetermined positioning structure respectively matched with each insulating block, the predetermined positioning structure being located at a rear side of the positioning structure, Each insulating block is provided with a matching structure matched with the positioning structure and the predetermined position structure. When the positioning structure and the matching structure are matched and fixed, the insulating block is in the fixed position, and the predetermined position structure and the matching When the structure is matched, the insulating block is located at a predetermined position on the insulating body; when installed, the pre-positioning structure and the mating structure may cause two of the insulating blocks to be pre-mounted to the insulating body respectively. The position is pre-positioned and then moved together to the fixed position. The electrical connector of claim 14, wherein the two insulating blocks are provided with a fastening structure fixed to each other on both sides, and when the two insulating blocks are firstly held together, Mounted together to a fixed position on the insulating body. The electrical connector of claim 14, wherein one of the two sides of the insulating block adjacent to the rear surface is rotatably fixed to the insulating body, on either side or away from the side of the rear surface. The two insulating blocks are mutually fastened to each other in a fixed position, and the two insulating blocks are rotated in opposite directions. The electrical connector of claim 1, wherein the insulating body is provided with a plurality of terminal slots extending through the front and rear, the conductive terminals are mounted forwardly from the rear surface to the insulating body, and further have a terminal fixed to the terminal a fixing portion in the groove and an abutting portion extending forward from the fixing portion. The electrical connector of claim 1, wherein the insulating body further has a plurality of terminal slots penetrating the front surface opposite to the front surface, the conductive terminals being mounted rearwardly from the front surface to the insulating body, and having a fixing portion fixed in the terminal groove and a welding leg extending from the front end of the fixing portion, the connecting leg extending rearward from the fixing portion.