TWI756110B - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector, which comprises an insulative housing and a plurality of contacts and a metallic shell. The insulative housing defines a base portion and a tongue portion. Each contact has a contacting portion, a retaining portion and a tail portion. The tongue portion is exposed in a receiving space of the metallic shell. The contacts include a group of first contacts and a group of second contacts, each first contact has a curved first contacting portion exposed on the tongue portion, and each second contact has a straight second contacting portion exposed on the tongue portion. In a front-and-rear direction, the second contacting portions are in front of the first contacting portions, the tail portion of each contact extends backwards from the retaining portion and is exposed outside the base portion, each tail portion is curved to make an elastic contacting with an exterior printed circuit board in order to avoid welding.

Description

electrical connector

The present invention relates to an electrical connector, in particular to an electrical connector with better resistance to pushing.

As a standard input/output interface, the Universal Serial Bus (USB) interface has been widely used in the design of many electronic devices. When the USB device is not removed after being used on the electronic product, if the electronic product involves storage or movement, the USB device is likely to be subjected to multi-directional impact force, thereby causing damage to the USB device. A conventional USB electrical connector includes an insulating body, a plurality of conductive terminals fixed inside the insulating body, and a shielding shell shielded outside the insulating body. When the conventional USB electrical connector is electrically connected to an external circuit board, the conductive terminals are usually used for electrical connection. The tail is soldered to the external circuit board, which not only requires a complicated soldering process, but also avoids the risk caused by high temperature during the soldering process. In addition, in the subsequent use process, abnormally pulling the conductive terminal for a long time will also cause it and the external circuit. The electrical connection of the board fails.

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

The purpose of the present invention is to provide an electrical connector with convenient electrical connection.

In order to achieve the above purpose, the present invention provides an electrical connector, which includes an insulating body, a plurality of conductive terminals and a metal shell fixed on the insulating body, and the insulating body has a base portion and a protrusion. For the tongue plate on the front side of the base, each of the conductive terminals has a contact portion protruding from the surface of the tongue plate, a fixing portion held in the insulating body, a tail portion located at the rear end thereof, and connecting the fixing portion and the tail portion. The connecting part, the metal shell has a receiving space opened forward, the tongue plate protrudes in the receiving space, the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of which is a first conductive terminal. The conductive terminal has a curved first contact portion protruding from the tongue plate, and each second conductive terminal has a straight second contact portion protruding from the tongue plate, in the front-rear direction, The second contact portion is located in front of the first contact portion, wherein the tail portion extends backward from the fixing portion and is exposed to the outside of the base portion, and the tail portion is curved to elastically contact with the external circuit board in a way that avoids soldering, and the base portion There are a plurality of fixing grooves arranged along the lateral direction and a limiting groove located on the rear side of the fixing groove. The first conductive terminal is assembled on the insulating body from top to bottom, and the fixing portion thereof is fixed in the corresponding fixing groove and the connecting portion thereof. limited to the aforementioned limit groove.

As a further improvement of the present invention, each of the aforementioned conductive terminals also has a connecting portion connecting the aforementioned fixing portion and the aforementioned tail portion, the connecting portions of the aforementioned first and second conducting terminals are arranged in two rows up and down, and the aforementioned first and second conductive terminals are arranged in two rows. The tails of the conductive terminals are arranged in front and rear rows.

As a further improvement of the present invention, each of the aforesaid tails has an abutment portion that is arched downward to elastically contact with the external circuit board, and in the front-rear direction, the abutment portion of the first conductive terminal is located at the second conductive terminal the rear side of the abutting portion.

As a further improvement of the present invention, the base portion has a base portion and a mounting portion extending backward from the base portion, the mounting portion has a carrier plate extending in the lateral direction, and the abutting portion protrudes downward and is exposed to the carrier underside of the board.

As a further improvement of the present invention, the carrier plate is provided with a plurality of receiving grooves arranged side by side in the lateral direction to receive the corresponding first conductive terminals, and each of the receiving grooves is formed by adjacent Two partitions are formed at intervals, the partitions extend backward beyond the rear end surface of the carrier plate, and the tail of the first conductive terminal is located behind the rear end surface of the carrier plate and extends backward between two adjacent partitions.

As a further improvement of the present invention, the abutting portion of the first conductive terminal is located between the abutting portions of the second conductive terminal in the height direction in a free state in which the abutting portion is not in contact with the external circuit board. underside.

In order to achieve the above object, the present invention also provides an electrical connector, which includes an insulating body, a plurality of conductive terminals and a metal shell held on the insulating body. The insulating body has a base and a tongue plate protruding from the front side of the base. The conductive terminal has a contact portion protruding from the surface of the tongue plate, a fixing portion held in the insulating body and a tail portion located at the rear end thereof. In the receiving space, the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of the first conductive terminals has a curved first contact portion protruding from the tongue plate. The second conductive terminal has a straight second contact portion protruding from the tongue plate. In the front-rear direction, the second contact portion is located in front of the first contact portion, and the tail portion extends backward from the fixing portion. and exposed to the outside of the base, and the tails are curved to elastically contact the external circuit board in a way that avoids soldering. In the above, the abutting portion of the first conductive terminal is located at the rear side of the abutting portion of the second conductive terminal, wherein in the free state that the abutting portion is not in contact with the external circuit board, in the height direction, the first conductive terminal is in the height direction. The abutting portion of the conductive terminal is located on the lower side of the abutting portion of the second conductive terminal.

In order to achieve the above purpose, the present invention also provides an electrical connector, which includes an insulating body, a plurality of conductive terminals and a metal shell fixed on the insulating body, and the insulating body has a base portion and a tongue plate protruding from the front side of the base, each of the conductive terminals has a contact part protruding from the surface of the tongue plate, a fixed part held in the insulating body, a tail located at the rear end, and the fixed part and the tail The connecting part is connected, the metal shell has a receiving space opened forward, the tongue plate protrudes in the receiving space, and the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of which is a first conductive terminal. A conductive terminal has a curved first contact portion protruding from the tongue plate, and each second conductive terminal has a straight second contact portion protruding from the tongue plate in the front-rear direction. , the second contact portion is located in front of the first contact portion, the tail portion extends backward from the fixing portion and is exposed to the outside of the base portion, and the tail portion is curved to elastically contact the external circuit board without soldering, the base portion There is a base portion and a mounting portion extending backward from the base portion, the mounting portion has a carrier plate extending along the lateral direction, wherein the second conductive terminal is embedded in the insulating body, and the carrier plate and the base portion are in the The front and rear directions are spaced apart to form a notch therebetween, and the connecting portion of the second conductive terminal is exposed upward through the notch.

In order to achieve the above object, the present invention also provides an electrical connector, which includes an insulating body, a plurality of conductive terminals and a metal shell held on the insulating body. The insulating body has a base and a tongue plate protruding from the front side of the base. The conductive terminal has a contact portion protruding from the surface of the tongue plate, a fixing portion held in the insulating body and a tail portion located at the rear end thereof. In the receiving space, the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of the first conductive terminals has a curved first contact portion protruding from the tongue plate. The second conductive terminal has a straight second contact portion protruding from the tongue plate. In the front-rear direction, the second contact portion is located in front of the first contact portion, and the tail portion extends backward from the fixing portion. And exposed to the outside of the base, and the tail is curved to elastically contact with the external circuit board in a way that avoids soldering, wherein the metal shell has a position The two sides in the lateral direction are mounted on the mounting portion of the external circuit board, and the mounting surface of the mounting portion and the mounting surface of the base portion are coplanar.

As a further improvement of the present invention, the metal casing includes an inner casing and an outer casing, the outer casing includes a main body and an extension portion integrally extending backward from the main body, the main body and the inner casing are fixed and connected to each other. The cover is on the upper side of the tongue plate.

Compared with the prior art, the electrical connector of the present invention can avoid the soldering process between the conductive terminals and the external circuit board because the tails of the conductive terminals are bent to elastically contact with the external circuit board, thereby improving the electrical connection. It can improve the processing efficiency of the machine and avoid various risks caused by high temperature during the welding process.

100, 100', 100": Electrical Connectors

101, 101', 101": Wings

102: Assembly surface

1, 1', 1": insulating body

11, 11": base

110: Mounting surface

112: Base part

1121: Fixed slot

1123: Limit Wall

1124: Limit slot

1125: Opening

1126: Card slot

1127: Fitting slot

113: Installation Department

1131: Carrier plate

1132: Extension Arm

1133: missing slot

1134: Containment Slot

1135: Barrier

114: Positioning convex part

115: Slot

116": Protrusion

12: Tongue plate

121: Through hole

2, 2', 2": Conductive terminal

2a: first conductive terminal

2b: Second conductive terminal

21: Contact part

21a: first contact part

21b: Second contact part

22: Fixed part

23: tail

231, 231a, 231b: abutting part

24: Connection part

25: Connection Department

3, 3', 3": inner shell

30: Containment space

301: Elastic Arm

31: Top Wall

32: Bottom wall

321: The first stop

322, 343': the second stop

34, 34': sidewall

341: Positioning slot

342: The first joint

4, 4', 4": outer shell

41: main body

411: Make way slot

42: Extensions

421: Buckle Department

422: Insert

5, 5', 5": reinforcement

51, 51": rear cover

510: Board body

511: Matching Department

52, 52": side cover

521: Second Joint

53": Lower cover

531": Positioning hole

6: Insulation parts

The first figure is a perspective assembly view of the first embodiment of the electrical connector of the present invention.

The second figure is a view from another perspective of the electrical connector shown in the first figure.

The third figure is an exploded perspective view of the electrical connector shown in the first figure.

FIG. 4 is a view from another perspective of the electrical connector shown in FIG. 3 .

FIG. 5 is an exploded perspective view of the conductive terminal and the insulating body of the electrical connector shown in FIG. 3 .

The sixth figure is a side view of the electrical connector shown in the first figure.

FIG. 7 is a cross-sectional view of the electrical connector shown in FIG. 1 .

Figure 8 is a perspective assembly view of the second embodiment of the electrical connector of the present invention.

FIG. 9 is a partial exploded view of the electrical connector shown in FIG. 8 .

FIG. 10 is a perspective assembly view of the third embodiment of the electrical connector of the present invention.

FIG. 11 is a view of the electrical connector shown in FIG. 10 from another perspective.

FIG. 12 is a perspective view of the reinforcing member of the electrical connector shown in FIG. 11 .

Please refer to FIGS. 1 to 7 showing the first embodiment of the electrical connector 100 of the present invention. The electrical connector 100 is used for mounting on an external circuit board (not shown), and includes an insulating body 1, a holding The plurality of conductive terminals 2 and the metal shell on the aforementioned insulating body 1 .

Referring to Figures 1 to 6, the insulating body 1 has a base portion 11 and a tongue plate 12 protruding from the front side of the base portion 11 . In this embodiment, the tongue plate 12 is integrally directed toward the front end surface of the base portion 11 . The front extension is formed, and in the height direction, the upper and lower surfaces of the tongue plate 12 are located between the upper and lower surfaces of the base 11 .

The base portion 11 has a base portion 112 and a mounting portion 113 extending backward from the base portion 112 . The mounting portion 113 has a carrier plate 1131 extending in the lateral direction and a space between two ends of the carrier plate 1131 in the lateral direction. A pair of extension arms 1132, the aforementioned carrier plate 1131 and the aforementioned base portion 112 are spaced apart in the front-rear direction to form a slot 1133 therebetween. As shown in FIG. 7, the bottom surface of the mounting portion 113 is located above the bottom surface of the tongue plate 12. Further, in a preferred embodiment of the present invention, the bottom surface of the mounting portion 113 is located above the top surface of the tongue plate 12, so as to Reduce the space occupied by external circuit boards and save installation space.

The carrier plate 1131 is provided with a plurality of receiving grooves 1134 arranged side by side in the lateral direction. Each of the receiving grooves 1134 is open upward and is formed by two adjacent partitions 1135 at intervals. In this embodiment, the barrier 1135 extends backward beyond the rear end surface of the carrier plate 1131 , and terminates at the plane where the rear end surface of the extending arm 1132 is located.

In addition, the base portion 11 further has a pair of positioning protrusions 114 located on both sides of the base portion 112 in the lateral direction. form. Further, in this embodiment, the base portion 11 further has a pair of slots 115 disposed on both sides in the lateral direction, and the slots 115 are disposed at the intersection of the extension arm 1132 on the corresponding side and the base portion 112 , and it is concave from top to bottom.

The base portion 112 has a plurality of fixing grooves 1121 arranged in the transverse direction, a limiting wall 1123 located at the front side of the fixing groove 1121 , and a limiting groove 1124 located at the rear side of the fixing groove 1121 . The aforementioned fixing groove 1121 extends in the height direction, and is disposed upwardly and forwardly. The aforementioned limiting walls 1123 partially block the aforementioned fixing grooves 1121 at the front side thereof, and the aforementioned limiting walls 1123 are intermittently arranged to form openings 1125 communicating with the corresponding fixing slots 112 . The aforementioned limiting grooves 1124 are recessed on the upper side of the aforementioned base portion 112 and are provided in a one-to-one correspondence with the aforementioned fixing slots 1121 . In this embodiment, the number of the aforementioned fixing grooves 1121 is four. The aforementioned limiting slots 1124 and the aforementioned accommodating slots 1134 are provided in a one-to-one correspondence, and are aligned along the front-rear direction.

Referring to Figures 1 to 7, each of the conductive terminals 2 has a contact portion 21 protruding from the surface of the tongue plate 12 , a fixing portion 22 held in the insulating body 1 , and a rear end thereof for electrical It is electrically connected to the tail 23 on the external circuit board.

In the present invention, the tail portion 23 extends backward from the fixing portion 22 in the horizontal direction and is exposed to the outside of the base portion 11 , and the tail portion 23 is curved to elastically contact the external circuit board without soldering, thereby eliminating the need for conductive terminals The welding process between 2 and the external circuit board, thereby improving the processing efficiency of the electrical connector 100 and avoiding various risks caused by high temperature during the welding process, and also avoiding the subsequent use process between the conductive terminals 2 and the external circuit board. The electrical connection fails.

Specifically, in this embodiment, the aforementioned conductive terminals 2 include a set of first conductive terminals 2a and a set of second conductive terminals 2b, and each of the first conductive terminals 2a has a curved shape protruding from the tongue plate 12 In the first contact portion 21a, each second conductive terminal 2b has a straight second contact portion 21b protruding from the tongue plate 12. In the front-rear direction, the second contact portion 21b is located on the first contact portion 21b. Contact portion 21a As before, the transmission of high-speed signals is realized by the second group of conductive terminals 2b. In addition, the number of the first conductive terminals 2a is four, and the number of the second conductive terminals 2b is five.

The tail portion 23 of the first conductive terminal 2a is located at the rear side of the rear end face of the carrier plate 1131 and extends backward between the two adjacent partitions 1134. Further, each of the tail portions 23 is formed to be arched downward to connect with the circuit. The abutting portion 231 of the board elastically contacts, the abutting portion 231 of the aforementioned conductive terminal 2 protrudes downward and is exposed to the lower side of the aforementioned carrier plate 1131; The rear side of the contact portion 231b of the second conductive terminal 2b. In a free state where the abutting portion 231 is not in contact with the external circuit board, the abutting portion 231a of the first conductive terminal 2a is located below the abutting portion 231b of the second conductive terminal 2b in the height direction.

Each of the aforementioned conductive terminals 2 also has a connecting portion 24 connecting the top end of the aforementioned fixed portion 22 with the aforementioned tail portion 23. The tail portions 23 of the aforementioned first and second conductive terminals 2a and 2b are arranged in two rows. The connecting portions 24 of the two conductive terminals 2a and 2b are arranged in two rows up and down. The connecting portion 24 of the first conductive terminal 2a extends in the front-rear direction and is limited to the corresponding limiting grooves 1124 and receiving grooves 1134 of the insulating body 1 .

The fixing portion 22 of each of the first conductive terminals 2 a extends in the vertical direction, the fixing portion 22 of each conductive terminal 2 of the second conductive terminals 2 b is L-shaped, and the second conductive terminal 2 is L-shaped. Each of the conductive terminals 2b further has a connecting portion 25 located between the second contact portion 21b and the fixing portion 22 thereof. The width of the connecting portion 25 in the lateral direction is smaller than that of the fixing portion 22 thereof.

In this embodiment, the first conductive terminal 2a is assembled in the insulating body 1 from top to bottom, and is held in the corresponding fixing groove 1121 of the insulating body 1 by the fixing portion 22 thereof, and the connecting portion 24 is limited to the corresponding fixing groove 1121 of the insulating body 1. in the aforementioned limiting groove 1124 . The second conductive terminal 2b is embedded and molded in the insulating body 1, and the tongue plate 12 of the insulating body 1 is provided with a plurality of through holes 121 penetrating it in the height direction. The through holes 121 correspond to the conductive terminals 2 of the second conductive terminals 2 b to partially expose the conductive terminals 2 to the outside, and the connecting portions 24 of the second conductive terminals 2 b are exposed upward through the notches 1133 . In addition, in the present embodiment, a row of the through holes 121 is disposed near the front end of the tongue plate 12 , and the second contact portions 21 b of the second conductive terminals 2 b are correspondingly exposed at the through holes 121 .

Referring to Figures 1 to 4 in combination with Figures 6 and 7, the metal casing has mounting portions on both sides in the lateral direction for mounting on the external circuit board, and mounting surfaces 102 of the mounting portion are provided. It is coplanar with the mounting surface 110 of the aforementioned base portion 11 . In the present invention, the aforementioned assembling portion is at least a pair of wing portions 101 , and the aforementioned metal shell is provided with the aforementioned wing portions 101 correspondingly on the outer sides of the aforementioned base portion 11 and the tongue portion 12 .

In addition, the aforementioned metal shell includes an inner shell 3 and an outer shell 4 , the aforementioned outer shell 4 includes a main body portion 41 and an extension portion 42 formed integrally extending backward from the aforementioned main body portion 41 , the aforementioned main body portion 41 and the aforementioned inner shell 3 It is fixed and covered on the upper side of the aforementioned tongue plate 12 .

The inner casing 3 has a receiving space 30 which is open and disposed forward, and the tongue plate 12 protrudes from the receiving space 30 . Specifically, the inner housing 3 has a top wall 31, a bottom wall 32, and a pair of side walls 34 connecting the top wall 31 and the bottom wall 32, and the top wall 31, the bottom wall 32 and the pair of side walls 34 are connected to form the aforementioned housing Space 30.

The insulating body 1 also has a pair of holding grooves 1126, the pair of holding grooves 1126 are recessed at the bottom of the base portion 112, and the rear end of the bottom wall 32 is formed with a first bending extending into the corresponding holding grooves. stopper 321 .

The top wall 31 extends backward so that its rear end surface abuts the front end surface of the base portion 112 . In this embodiment, the bottom wall 32 further has a second stopper portion 322 extending backward beyond the rear end surface of the base portion 112 .

Further, each of the aforementioned side walls 34 has a positioning groove 341 recessed forward from the rear end thereof and a first joint portion 342 located at the front side of the aforementioned positioning groove 341 , and a pair of positioning protrusions 114 of the aforementioned base portion 11 are inserted forward correspondingly for positioning in the groove 341. In this embodiment, the first coupling portion 342 is a protruding structure protruding outside the corresponding side wall 34 . In other embodiments, the first coupling portion 342 can also be a concave structure that is recessed outside the corresponding side wall 34 . .

Meanwhile, as shown in the first to seventh figures, the electrical connector 100 further has an outer casing 4 fixed on one side of the inner casing 3 and a reinforcing member 5 fixed on the rear of the inner casing 3 . The outer casing The body 4 has at least a pair of wings 101 for mounting on an external circuit board, and each of the wings 101 defines a mounting hole for mounting on the external circuit board.

The outer casing 4 includes a main body portion 41 and an extension portion 42 integrally extending backward from the main body portion 41 . The main body portion 41 and the inner casing 3 are fixed and cover the upper side of the tongue plate 12 . In the present invention, it is preferable to In the embodiment, the main body portion 41 is connected to the inner casing 3 by welding; in addition, the top wall 31 is provided with a pair of elastic arms 301 , and the main body portion 41 correspondingly defines a recess 411 for avoiding the elastic arms 301 . The aforementioned extension portion 42 covers the upper side of the aforementioned base portion 11 and has a pair of clasping portions 421 located at the bottom of the aforementioned base portion 11 to be caught and fastened to the aforementioned base portion 11 . Moreover, in this embodiment, the aforementioned extension portion 42 also has a downward bending extension. A pair of inserts 422 are inserted into the corresponding slots 115 . The pair of inserts 422 are located on both sides of the extending portion 42 in the lateral direction, and are located on the front side of the retaining portion 421 in the front-rear direction.

The aforesaid tail portion 23 is located within the cover range of the aforementioned outer casing 4 in the front-rear direction. Specifically, the aforementioned tail portion 23 is exposed to the rear side of the aforementioned inner casing 3 and downwardly exposed to the cover below the extension portion 42 of the aforementioned outer casing 4 . Within the scope of the cover, that is, viewed from above the electrical connector 100, the aforementioned tail portion 23 is not exposed to the outside, so that the outer casing 4 can well shield the conductive terminals 2, absorb external electromagnetic waves, and restrain itself. The electromagnetic wave, and then realize the function of preventing electromagnetic interference.

As shown in Figures 2 to 4 in combination with Figures 6 and 7, in this embodiment, the reinforcing member 5 has a rear cover plate 51 covering the rear side of the inner casing and oppositely disposed on the rear cover A pair of side cover plates 52 on both sides of the plate 51, the pair of side cover plates 52 are respectively fixedly connected with the inner housing 3, and when the electrical connector 100 is subjected to a pressing force in the mating direction, the electrical When the connector 100 is subjected to external pressing force, the resistance to pressing is enhanced to not less than 40 kg, that is, when the external pressing force is less than or equal to 40 kg, the electrical connector 100 will not be affected.

Further, the rear cover 51 has a matching portion 511 located in the middle of the lateral direction and fixed to the insulating body 1 . The matching portion 511 and the side cover 52 extend in the same direction. Specifically, the aforementioned matching portion 511 is a sheet-like structure formed by bending forward from the body portion 510 of the aforementioned rear cover plate 51 . The aforementioned insulating body 1 has a matching groove 1127 disposed at the bottom thereof and fixed with the aforementioned matching portion 511 . In the embodiment shown in the present invention, the aforementioned matching groove 1127 can be a multi-directional open structure with a downward and rearward opening. ; In other embodiments, the aforementioned matching groove 1127 can also be a one-way open structure that is only open to the rear. At this time, the aforementioned matching portion 511 is inserted forward and limited to the aforementioned matching slot 1127 . As shown in FIG. 7 , the second stopper portion 322 protrudes backward and its rear end surface is located at the rear side of the front surface of the rear cover 51 . In a preferred embodiment, the second stopper portion 322 is located at the rear side of the rear cover plate 51 . Right below the cover plate 51 to limit the position of the rear cover plate 51 on the lower side.

When the electrical connector 100 is subjected to a pressing force from the outside, the inner shell 3 is first subjected to the pressing force. With the support of the aforementioned reinforcing member 5, the aforementioned inner shell 3 can be maintained in a normal shape to avoid Deformation and disintegration, when the pushing force is gradually strengthened, the inner shell 3 gradually begins to generate the deformation force of twisting and rotating, and then drives the reinforcing member 5 to begin to have the deformation force of twisting and rotating. Right below the rear cover plate 51 , the second stopper 322 can provide a stop and a limiting effect on the reinforcement member 5 at this time, so the second stopper portion 322 provides an anti-deformation force to the reinforcement member 5 . to enhance Ability to resist pushing force.

Each of the aforementioned side cover plates 52 has a second joint portion 521 which is matched with the corresponding first joint portion 342 of the aforementioned inner casing 3 . In this embodiment, the reinforcing member 5 is installed to the rear side of the inner casing 3 from the rear to the front, the matching portion 511 is inserted forward into the matching groove 1127 , and the side cover 52 is connected to the side cover 52 through the second connecting portion 521 . The cooperation of the first joint portion 342 realizes the joint with the inner casing 3. At the same time, the aforementioned side cover plate 52 is further jointed with the aforementioned side wall 34 of the aforementioned inner casing 3 by welding. In other embodiments of the invention, the aforementioned side cover plate 52 can also be fixed to the inner casing 3 only by one of the second joint portion 521 and the welding method.

In the present invention, the aforementioned inner casing 3 is not provided with fixing feet for engaging and fixing with the external circuit board, but is fixedly installed on the outer casing 4 (or the outer casing 4 and the reinforcing member 5 ) by the wings 101 of the outer casing 4 . on the circuit board, thereby increasing the bonding force between the electrical connector 100 and the circuit board.

In addition, as shown in the second, fourth and seventh figures, in the present invention, an insulating member 6 is disposed inside the extending portion 42 of the outer casing 4 , and the insulating member 6 completely separates it from above the tail portion 23 . cover up. In this embodiment, the insulating member 6 is in a sheet shape and is attached to the inner side of the extending portion 42 of the outer casing 4 .

As shown in Figures 8 to 9, it is a second embodiment of the electrical connector 100' of the present invention. The basic composition and structure of the electrical connector 100' are the same as the electrical connector 100 in the first It includes an insulating body 1', at least one set of conductive terminals 2', an inner casing 3', an outer casing 4', and a reinforcing member 5' that are shielded outside the insulating body 1'. Other identical structures will not be repeated here. Only the differences are explained:

In this embodiment, the basic structure of the aforementioned reinforcing member 5 ′ is the same as that of the reinforcing member 5 in the first embodiment, the difference is that the aforementioned reinforcing member 5 ′ also has at least one pair of wings located on both sides in the transverse direction. portion 101 ′, in combination with the corresponding wing portion 101 ′ of the aforementioned outer casing 4 ′ to jointly mount the electrical connector 100 ′ on the external circuit board, and the resistance of the electrical connector 100' in the mating direction is not less than 40 kg. In addition, each side wall 34' of the inner casing 3' is bent to form a second stopper portion 343' that resists the insulating body 1'.

As shown in Figures 10 to 12, it is a third embodiment of the electrical connector 100" of the present invention. The basic composition and structure of the electrical connector 100" are also the same as the electrical connector 100 in the first embodiment. It also includes an insulating body 1", at least one set of conductive terminals 2", and an inner casing 3", an outer casing 4", and a reinforcing member 5" that are shielded outside the insulating body 1". Other identical structures will not be repeated here. Only the differences are explained below:

In this embodiment, similar to the second embodiment, the aforementioned reinforcing member 5 ″ also has a pair of wings 101 ″ located on one of the two sides in the lateral direction, so as to be combined with the wings 101 ″ of the aforementioned outer casing 4 ″ The electrical connector 100" is mounted on the external circuit board together, and the resistance of the electrical connector 100" in the mating direction is not less than 40 kg.

In addition, the outer shell 4" covers one side of the inner shell 3" in the height direction, and the reinforcement member 5" covers the other side of the inner shell 3" in the height direction. Specifically, the aforementioned reinforcing member 5 ″ is formed by metal powder injection molding, and includes a lower cover plate 53 ″, a pair of side cover plates 52 ″ located on both sides of the lower cover plate 53 ″ in the lateral direction, and a pair of side cover plates 52 ″ located on the lower cover plate 53 ″. "Rear side rear cover 51", the aforementioned rear cover 51" is integrally connected with the aforementioned lower cover 53" and side cover 52" to cover the four sides of the aforementioned inner casing 3", the aforementioned reinforcement 5" A pair of wings 101" is formed by bending and extending from the aforementioned side cover plate 52" on the corresponding side.

In addition, in this embodiment, the base portion 11" of the insulating body 1" has a protruding portion 116" formed to protrude downward, and the lower cover plate 53" has a positioning hole 531 for accommodating and limiting the protruding portion 116". ".

The electrical connectors 100, 100', 100" of the present invention reinforce the inner shells 3, 3', 3" by the reinforcing members 5, 5', 5" fixed to the rear of the inner shells 3, 3', 3". the structural strength, thereby improving the electrical connector 100, 100', 100" of pressure resistance; and by fixing the outer shell 4, 4', 4" on one side of the inner shell 3, 3', 3" to achieve its installation on the external circuit board, to It can be installed more firmly; in addition, the electrical connectors 100, 100', 100" of the present invention are also bent by the tails 23 of the conductive terminals 2, 2', 2" to elastically contact the external circuit board in a way that avoids soldering, It can eliminate the soldering process between the conductive terminals 2, 2', 2" and the external circuit board, thereby improving the processing efficiency of the electrical connectors 100, 100', 100" and avoiding various risks caused by high temperature during the soldering process, and also It can avoid failure of the electrical connection between the conductive terminals 2, 2', 2" and the external circuit board during subsequent use.

It should be particularly pointed out that, for those of ordinary skill in the art, the equivalent changes to the present invention made under the teaching of the present invention should still be included in the claimed scope of the patentable scope of the present invention.

100: Electrical connector

101: Wings

1135: Barrier

23: tail

301: Elastic Arm

321: The first stop

322: Second stop

342: The first joint

421: Buckle Department

51: rear cover

Claims (10)

An electrical connector comprising an insulating body, a plurality of conductive terminals held on the insulating body, and a metal shell, the insulating body having a base and a tongue plate protruding from the front side of the base, each of the conductive terminals having a protruding from the tongue The contact part on the surface of the board, the fixed part held in the insulating body, the tail part located at the rear end, and the connecting part connecting the fixed part and the tail part; the metal shell has a receiving space opened forward; the tongue plate Protruding from the receiving space, the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of the first conductive terminals has a curved first contact portion protruding from the tongue plate, Each second conductive terminal has a straight second contact portion protruding from the tongue plate. In the front-rear direction, the second contact portion is located in front of the first contact portion, and the tail portion is fixed from the The base portion extends backward and is exposed to the outside of the base portion, and the tail portion is curved to elastically contact the external circuit board without soldering. The base portion has a plurality of fixing grooves arranged in the lateral direction and a limit groove located at the rear side of the fixing groove. , the first conductive terminal is assembled on the insulating body from top to bottom, and the fixing part thereof is fixed in the corresponding fixing groove, and the connecting part is limited in the limiting groove. The electrical connector of claim 1, wherein each of the conductive terminals further has a connecting portion connecting the fixing portion and the tail portion, and the connecting portions of the first and second conductive terminals are arranged in two rows up and down , the tails of the first and second conductive terminals are arranged in two rows. The electrical connector as claimed in claim 2, wherein each of the tail portions has an abutment portion that is arched downward to elastically contact with an external circuit board, and in the front-rear direction, the first conductive terminals are abutted against each other. The portion is located at the rear side of the abutting portion of the second conductive terminal. The electrical connector of claim 3, wherein the base portion has a base portion and a mounting portion extending backward from the base portion, and the mounting portion has a lateral extension. In the formed carrier plate, the abutting portion protrudes downward and is exposed on the lower side of the carrier plate. The electrical connector according to claim 4, wherein the carrier plate is provided with a plurality of receiving grooves arranged side by side in the lateral direction to receive the corresponding first conductive terminals, and each of the receiving grooves is formed by two adjacent ones of the corresponding first conductive terminals. The partitions are formed at intervals, the partitions extend backward beyond the rear end surface of the carrier plate, and the tails of the first conductive terminals are located at the rear side of the rear end surface of the carrier plate and extend backward between two adjacent partitions. The electrical connector according to claim 3, wherein in a free state in which the abutting portion is not in contact with the external circuit board, in the height direction, the abutting portion of the first conductive terminal is located at the second The underside of the contact portion of the conductive terminal. An electrical connector comprising an insulating body, a plurality of conductive terminals held on the insulating body, and a metal shell, the insulating body having a base and a tongue plate protruding from the front side of the base, each of the conductive terminals having a protruding from the tongue The contact part on the surface of the board, the fixed part held in the insulating body, and the tail part located at the rear end; the metal shell has a receiving space opened forward; the tongue plate protrudes in the receiving space; the conductive terminals include A set of first conductive terminals and a set of second conductive terminals, each first conductive terminal has a curved first contact portion protruding from the tongue plate, and each second conductive terminal has a protrusion protruding from the tongue plate A flat second contact portion on the plate, in the front-rear direction, the second contact portion is located in front of the first contact portion, the tail portion extends backward from the fixing portion and is exposed to the outside of the base portion, and the tail portion It is curved to elastically contact with the external circuit board in a way that avoids soldering. Each of the aforementioned tails has a contact portion that is arched downward to form an elastic contact with the external circuit board. The abutting portion of the second conductive terminal is located at the rear side of the abutting portion of the second conductive terminal, wherein in the free state that the abutting portion is not in contact with the external circuit board, in the height direction, the abutting portion of the first conductive terminal is located at the second conductive terminal. The underside of the contact portion of the conductive terminal. An electrical connector comprising an insulating body, a plurality of conductive terminals held on the insulating body, and a metal shell, the insulating body having a base and a tongue plate protruding from the front side of the base, each of the conductive terminals having a protruding from the tongue The contact part on the surface of the board, the fixed part held in the insulating body, the tail part located at the rear end, and the connecting part connecting the fixed part and the tail part; the metal shell has a receiving space opened forward; the tongue plate Protruding from the receiving space, the conductive terminals include a set of first conductive terminals and a set of second conductive terminals, each of the first conductive terminals has a curved first contact portion protruding from the tongue plate, Each second conductive terminal has a straight second contact portion protruding from the tongue plate. In the front-rear direction, the second contact portion is located in front of the first contact portion, and the tail portion extends from the fixing portion. It extends backward and is exposed to the outside of the base, and the tail is curved to elastically contact the external circuit board without soldering. The base has a base and a mounting portion extending backward from the base. The mounting portion has a lateral A carrying board formed by extending in the direction, wherein the second conductive terminal is embedded in the insulating body, the carrying board and the base portion are spaced apart in the front-rear direction to form a groove between the two, and the second conductive terminal is formed. The connecting portion of the terminal is exposed upward through the notch. An electrical connector comprising an insulating body, a plurality of conductive terminals held on the insulating body, and a metal shell, the insulating body having a base and a tongue plate protruding from the front side of the base, each of the conductive terminals having a protruding from the tongue The contact part on the surface of the board, the fixing part held in the insulating body and the tail part located at the rear end; the metal shell has a receiving space opened forward; the tongue plate protrudes in the receiving space; the conductive terminals include A set of first conductive terminals and a set of second conductive terminals, each first conductive terminal has a curved first contact portion protruding from the tongue plate, and each second conductive terminal has a protrusion protruding from the tongue plate flat second contact In the front-rear direction, the second contact portion is located in front of the first contact portion, the tail portion extends backward from the fixing portion and is exposed to the outside of the base portion, and the tail portion is curved to avoid soldering with the external circuit board. elastic contact, wherein the metal shell has assembling portions located on both sides in the lateral direction to be mounted on the external circuit board, and the assembling surface of the assembling portion and the assembling surface of the base portion are coplanar. The electrical connector according to claim 9, wherein the metal shell includes an inner shell and an outer shell, the outer shell includes a main body portion and an extension portion integrally extending backward from the main body portion, the main body portion It is fixed with the inner casing and covers the upper side of the tongue plate.

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