TWI394334B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for signal transmission of a consumer electronic product.

As an information transmission medium, electrical connectors have been widely used in various electronic devices. The quality of electrical connectors directly affects whether electronic devices work properly. The prior art has an electrical connector including an insulative housing, a plurality of terminals received in the insulative housing, and a metal housing covering the insulative housing. The metal housing is further covered with an insulating sleeve, and the insulating sleeve is assembled. The metal casing has a docking area at the front end of the metal casing, and the insulating sleeve has an accurate positioning problem, and the positional uncertainty of the mounting of the metal casing affects the length of the electrical connector docking area, thereby affecting the electricity. The docking effect of the connector and the docking connector is not suitable for mass production, and the electrical connector is not suitable for the condition of providing more than one insulating sleeve.

In view of the above deficiencies, it is indeed necessary to design a new electrical connector to compensate for the above-mentioned drawbacks in the prior art.

It is an object of the present invention to provide an electrical connector having an improved positioning structure of two metal housings to two insulating sleeves. The positioning structure is simple and can accurately position two insulating sleeves on the metal housing.

In order to achieve the above object, the present invention adopts the following technical solution: an electrical connector includes an insulative housing, a terminal received in the insulative housing, and a metal housing covering the insulative housing, the metal housing being disposed on both sides thereof The power connector further includes two insulating sleeves respectively provided with a mating structure resisting the blocking piece, and the two insulating sleeve bodies are respectively assembled in the metal shell in different directions, and The mating structures respectively abut against the two sides of the blocking piece, and the portion of the front end of the metal casing that is not covered by the insulating sleeve forms a docking area of the electrical connector.

Compared with the prior art, the electrical connector of the present invention has the following beneficial effects: the positioning structure of the two insulating sleeves by the improved metal casing can accurately position the two insulating sleeves on the metal casing, and can ensure the connector. The docking area is uniform in size, good in docking effect, and easy to mass produce.

As shown in the first to fourth embodiments, the electrical connector 100 of the present invention includes an insulative housing 1, a terminal 2 received in the insulative housing 1, a circuit board 3 assembled to the insulative housing 1 and electrically connected to the terminal 2, a metal case 6 covering the insulative housing 1 , an insulating cover partially covering the outer wall of the metal case 6 (in the present embodiment, the cover 4 and the sleeve 5 ), and an end of the terminal 2 Terminal 7 for sexual connection.

The insulative housing 1 is provided with a main body portion which is a side horizontal U-shaped structure including a top wall 11, a bottom wall 12 substantially parallel to the top wall 11, and a connection of the top wall 11 and the bottom wall 12 a pair of side walls 13. The front end of the top wall 11 is formed with a downwardly recessed groove 111, and the rear end is formed with a protruding protrusion 110. The top wall 11 and the inner wall of the bottom wall 12 are provided with a plurality of terminal slots 121 for receiving the terminals 2, respectively. In addition, a docking space 16 is formed between the top wall 11 and the bottom wall 12. The insulative housing 1 further has a pair of elastic arms 14 extending rearward from the pair of side walls 13. The elastic arms 14 extend beyond the top end wall 11 of the insulative housing 1 and the rear end surface of the bottom wall 12. The elastic arm 14 Between shapes There is a space 15 for accommodation. The elastic arm 14 cooperates with the top wall 11, the bottom wall 12 and the side wall 13 of the insulative housing 1 to form a lying U-shaped structure, and the lying U-shaped structure shares a pair of side walls 13 with the lateral horizontal U-shaped structure. The length of the top wall 11 and the bottom wall 12 of the insulative housing 1 in the longitudinal direction is smaller than the entire length of the insulative housing 11. The elastic arm 14 is formed with a slot 141 and an outwardly protruding blocking block 142 formed at the end of the resilient arm 14 and located at the rear end of the slot 141. The outer wall of the blocking block 142 extends beyond the outer wall surface of the resilient arm 14. A shallow groove (not labeled) is formed between the inner side of the stopper block 142 and the inner side of the elastic arm 14. The slot 141 constitutes a fixing member of the insulative housing 1, and the end of the elastic arm 14 is formed with an opening (not labeled). The opening penetrates the stop block 142, and the slot 141 and the stop block 142 extend in the mating direction. The resilient arms 14 are resilient to facilitate insertion and fixation of the circuit board 3.

The terminal 2 is divided into upper and lower rows, and each includes a horizontal body portion 22, a contact portion 21 formed by bending forward from the horizontal body portion 22, and a distal end portion extending rearward from the horizontal body portion 22. twenty three. The terminals 2 are respectively received in the corresponding terminal slots 121 of the top wall 11 and the bottom wall 12 of the insulative housing 1 , and the end portions 23 are electrically connected to the terminals 7 .

The circuit board 3 is a board structure having a top surface 31 and a bottom surface (not labeled). The top surface 31 and the bottom surface are respectively provided with a plurality of conductive paths (not labeled), and one end of the conductive paths is connected to the terminal 2, and One end is electrically connected to the terminal 7. The circuit board 3 is respectively provided with outwardly protruding flanges 32 on the two sides perpendicular to the mating direction, and the flanges 32 are matched with the slots 141 of the insulative housing 1 , and the front end of the circuit board is A beveled surface 33 is also formed on the side to prevent the board 3 from being mis-inserted when inserted into the insulative housing 1.

The metal housing 6 also includes a top wall 61, a bottom wall 63, and a connection to the top wall 61. A pair of side walls 62 of the bottom wall 63, the walls enclosing a main body portion of the metal casing 6. The top wall 61 is formed at a substantially intermediate position with a stop piece 610 extending obliquely downward to the insulative body. The groove 111 of the top wall 11 of the first wall 11 is fitted, and is bent downward at the rear end thereof to form a substantially U-shaped clamping portion 611. The rear end of the bottom wall 63 is formed with a horizontally extending support portion 630 for supporting the terminal 7 and having a stress relief function to prevent the cable from being broken. The pair of side walls 62 are provided with an outwardly extending blocking piece 620 and a blocking hole 624 formed in front of the blocking piece 620 near the rear end position.

The cover body 4 is generally a frame structure, which is formed by molding a high-temperature plastic material, and a front end thereof is formed with a flange 41 surrounding the cover body 4, and a rear end of the cover body is formed with the metal housing 6 The flap 620 is fitted with a slit 42.

The sleeve 5 is also generally frame-shaped, and is also formed by molding a high-temperature plastic material, and the rear end surface thereof is a wellhead-type structure provided with a circular hole 51, and the inner wall of the sleeve 5 is further provided with The prismatic structure of the metal housing 6 is fitted with a prismatic structure (as shown in the fourth figure, not labeled). The terminal 7 includes a cable 71 and a protective portion 72 cooperating therewith. The protection portion 72 is generally T-shaped and has two lugs 720. The cover 4 and the sleeve 5 constitute a cladding of the metal. The insulating layer of the casing, and the opening direction of the slit 42 is opposite to the opening direction of the channel of the prismatic structure, and the size of the cover body 4 in the butting direction is smaller than that of the sleeve 5.

In the assembly, first, the two rows of terminals 2 are respectively received in the corresponding terminal slots 121 of the top wall 11 and the bottom wall 12 of the insulative housing 1. After being installed, the contact portion 21 of the terminal 2 is exposed to the docking space 16, The end portion 23 is exposed to the outside of the accommodating space 15, and the horizontal body portion 22 is completely received in the terminal slot 121. Then, the circuit board 3 is inserted in the docking direction by the opening of the elastic arm 14. a groove of the inner wall of the elastic arm 14 of the insulative housing 1, the front contact slope of the flange 32 of the circuit board 3 first contacts the rear contact surface of the inner wall of the block 142, and is guided to the slot by the slot The hole 141 is moved in the direction, since the distance between the outer sides of the two flanges 32 is larger than the distance between the inner sides of the stoppers 142 of the elastic arms 14, the ends of the elastic arms 14 are inserted along the flanges 32 of the two side walls of the circuit board 3. Extending outwardly at an angle, when the circuit board 3 is inserted into the slot 141 of the flange 32 completely received into the resilient arm 14, the resilient arm 14 is restored to the initial position, the flange 32 The rear end is blocked by the inner side of the front end of the stopper piece 142 of the elastic arm 14 to prevent it from being withdrawn rearward from the slot 141. At this time, the circuit board 3 is firmly fixed to the insulative housing 1, and the front end of the circuit board 3 is inserted into the gap between the end portions 23 of the upper and lower rows of terminals 2, and the top surface 31 and the bottom surface of the circuit board 3 are The plurality of conductive paths are in contact with the end portion 23 of the terminal 2, and are electrically connected by a soldering technique. The rear end of the circuit board 3 is completely received in the accommodating space 15 of the insulative housing 1; The core wires in the cable 71 are respectively soldered to the other end of the conductive path on the circuit board 3.

Then, the insulative housing 1 on which the terminal 2 and the circuit board 3 are mounted is inserted from the rear end of the metal housing 6 until the ribs 110 of the top wall 11 of the insulative housing 1 and the top wall 61 of the metal housing 6 The stopper piece 610 is in contact with each other, and the outer portion of the stopper piece 142 of the elastic arm 14 of the insulative housing 1 is received by the hole 624 of the metal casing 6; and then, the cover body 4 is self-contained from the metal casing 6. The front end is inserted until the gap 42 of the cover 4 abuts against the blocking piece 620 of the metal casing 6. At this time, the cover 4 cannot advance due to the blocking of the blocking piece 620; finally, the sleeve 5 Nesting from the rear end of the metal casing 6 until the prismatic structure of the inner wall of the sleeve 5 is engaged with the blocking piece 620, here, The slit 42 of the cover 4 and the prismatic structure of the sleeve 5 form a fitting structure in which the insulating body 1 and the blocking piece 620 are fitted. The lug 720 of the terminal 7 is stuck against the circular hole 51 of the sleeve 5. The inner wall and the outer wall of the cover 4 are coated with glue, and the sleeve 5 and the metal casing 6 can be tightly fastened. Sticking, at this time, the blocking piece 620 of the metal casing 6 is clamped between the cover body 4 and the sleeve 5, and the sleeve 5 completely covers the cover body 4. At this point, the electrical connector 100 is assembled. A portion of the front end of the metal casing 6 that is not covered by the cover 4 and the sleeve 5 forms a mating area (not labeled) that mates with a mating connector (not shown).

In the electrical connector 100 of the present embodiment, the blocking piece 620 disposed on both sides of the metal casing 6 can respectively position the cover body 4 and the sleeve 5 assembled in the metal casing 6 in different directions, thereby eliminating the difference. When the cover body 4 and the sleeve 5 are assembled to the metal housing 6, the position is difficult to determine, and the size of the mating area of the front end of the electrical connector is ensured to be fixed, and the docking connector is improved, and the blocking piece 620 is further improved. The structure is simple, easy to standardize manufacturing, and improve production efficiency.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11, 61‧‧‧ top wall

110‧‧‧

111‧‧‧ slots

12, 63‧‧‧ bottom wall

121‧‧‧Terminal slot

13, 62‧‧‧ side walls

14‧‧‧Flexible arm

141‧‧‧Slots

142‧‧ ‧ block

15‧‧‧ accommodating space

16‧‧‧ docking space

2‧‧‧ terminals

21‧‧‧Contacts

22‧‧‧ horizontal body

23‧‧‧End

3‧‧‧Circuit board

31‧‧‧ top surface

32‧‧‧Flange

33‧‧‧Bevel

4‧‧‧ cover

41‧‧‧Flange

42‧‧‧ gap

5‧‧‧ sleeve

51‧‧‧round hole

6‧‧‧Metal housing

610‧‧‧stop film

611‧‧‧Clamping Department

620‧‧ ‧Flap

630‧‧‧Support

7‧‧‧ Terminal

72‧‧‧Protection Department

720‧‧‧ lugs

The first figure is an exploded perspective view of the electrical connector of the present invention; the second figure is another perspective view of the electrical connector shown in the first figure; and the third figure is an assembled view of the electrical connector shown in the first figure; The fourth figure is a cross-sectional view of the electrical connector shown in the third figure in the IV-IV direction.

1‧‧‧Insulating body

111‧‧‧ slots

12‧‧‧ bottom wall

121‧‧‧Terminal slot

13‧‧‧ side wall

142‧‧ ‧ block

15‧‧‧ accommodating space

2‧‧‧ terminals

21‧‧‧Contacts

22‧‧‧ horizontal body

3‧‧‧Circuit board

31‧‧‧ top surface

33‧‧‧Bevel

4‧‧‧ cover

41‧‧‧Flange

5‧‧‧ sleeve

6‧‧‧Metal housing

61‧‧‧ top wall

610‧‧‧stop film

620‧‧ ‧Flap

63‧‧‧ bottom wall

7‧‧‧ Terminal

Claims (10)

An electrical connector comprising: an insulative housing; a terminal received in the insulative housing; and a metal housing covering the insulative housing; wherein the metal housing is provided with a flap on both sides thereof, The electrical connector further includes two insulating sleeves respectively provided with a mating structure that abuts against the blocking piece, the two insulating sleeves are respectively assembled to the metal housing in different directions, and respectively abutted by the mating structure The two sides of the metal shell are not covered by the insulating sleeve to form abutting area of the electrical connector, wherein the two insulating sleeves are respectively a cover body and a sleeve, and the cover body In the frame structure, the two sides of the rear end are formed with a gap that cooperates with the blocking piece of the metal casing, and the sleeve is also of a frame type, and the inner wall is provided with a blocking piece of the metal casing. In the prismatic structure, the cover body and the sleeve abut against the two sides of the flap through the gap and the prismatic structure, respectively. The electrical connector of claim 1, wherein the cover is assembled from the mating end of the metal housing to the metal housing, and the sleeve is assembled from the other end of the metal housing to the metal housing. The electrical connector of claim 2, wherein the front end of the cover is formed with a flange surrounding the cover. The electrical connector of claim 1, wherein the opening direction of the slit is opposite to the opening direction of the channel of the prismatic structure. The electrical connector of claim 4, wherein the cover has a smaller dimension in the mating direction than the sleeve. The electrical connector of claim 5, wherein the insulating sleeve The body portion is covered with a metal housing that completely covers the cover. The electrical connector of claim 1, wherein the insulative housing comprises a lateral U-shaped body portion, the body portion including a top wall, a bottom wall, and a top wall and a bottom wall that are parallel to each other. The side wall between the back ends. The electrical connector of claim 7, wherein the insulative housing further comprises another lying U-shaped structure, the lying U-shaped structure sharing the insulation with a lateral U-shaped body portion The side wall of the body. The electrical connector of claim 8, wherein the electrical connector further comprises a circuit board, the insulating body extending from two sides of the main body portion to form a pair of elastic arms, the circuit board passing The elastic arm is fixed to the insulating body. The electrical connector of claim 7, wherein the length of the top wall and the bottom wall of the insulating body in the longitudinal direction is smaller than the overall length of the insulating body.