TW201503493A - Electrical connector - Google Patents

Abstract

The present invention relates to anelectrical connector installed on a circuit board by Surface Mounting Technology and mating with a mating connector. The electrical connector includes an insulative housing, a plurality of conductive contacts received in the insulative housing, and a fixing member. The insulative housing has a mating portion extending forwardly. The mating portion defines a receiving slot for receiving the mating connector. Each of the conductive contacts includes a contacting portion exposed to the receiving slot for electrically connecting with the mating connector, and a soldering portion extending parallel to the circuit board. The fixing member is over molding with the conductive contacts.

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector mounted on a circuit board.

With the rapid development of electronic technology, electrical connectors are widely used in electronic products to exchange information, data, and the like with external devices. The electrical connector generally includes an insulative housing, a terminal received in the insulative housing, and a metal housing mounted on the outside of the insulating body. The soldering legs of the aforementioned terminals extend from the insulating body to be soldered to the circuit board. U.S. Patent No. 7,303,438 discloses a prior art electrical connector having a surface soldered to a circuit board and mated with a mating connector. The electrical connector includes an insulative housing, a plurality of conductive terminals mounted on the insulative housing, and a metal housing mounted on the circuit board and disposed in front of the insulative housing.
In order to meet the requirements of stable transmission signal and high transmission efficiency of electronic products, it is necessary to ensure the stability of the electrical connector. When the existing electrical connector is assembled, the conductive terminal is usually inserted into the insulating body from above and below the insulating body. However, such an assembly method may cause the above-mentioned conductive terminals to have a problem that the soldering structure is fragile, the positive position and the flatness are not easily controlled, and thus the solder joint is easily generated, thereby affecting the transmission of the signal.
In view of this, it is necessary to further improve the existing electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector that better controls the structural strength, orthotropy, and flatness of the welded structure of the conductive terminals.
To achieve the above object, the present invention relates to an electrical connector that is surface-welded to a circuit board for connection with a mating connector, the electrical connector comprising:
The insulative housing includes a mating portion extending forwardly, and the receiving portion is provided with a receiving slot for receiving the mating connector;
a plurality of conductive terminals, wherein the plurality of conductive terminals are received in the insulative housing, the conductive terminals include a contact portion and a solder tail portion, and the contact portion is exposed in the receiving groove of the mating portion for electrically connecting with the mating connector, The solder tail extends parallel to the circuit board; and a fixing base, the fixing seat being integrally formed with the conductive terminal.
As a further improvement of the present invention, the insulative housing includes a pair of extending walls extending rearward from opposite sides of the mating portion, and the abutting portion and the pair of extending walls collectively form a receiving space for receiving the fixing seat.
As a further improvement of the present invention, the pair of extension walls are provided with mounting grooves, and the fixing seat is provided with a mounting block that cooperates with the corresponding mounting groove.
According to a further improvement of the present invention, the plurality of conductive terminals further includes a bent portion connecting the contact portion and the solder tail portion, and the bent portion includes a horizontal portion connected to the contact portion and a vertical portion connected to the solder tail portion.
According to a further improvement of the present invention, the plurality of conductive terminals include a first terminal arranged above and a second terminal arranged below the first terminal, wherein the contact portion of the first terminal is disposed above the contact portion of the second terminal, The solder tail of the first terminal is disposed behind the solder tail of the second terminal.
As a further improvement of the present invention, the length of the vertical portion of the first terminal is greater than the length of the vertical portion of the second terminal, and the fixing seat is integrally formed on the first terminal.
As a further improvement of the present invention, the fixing base includes a first portion and a second portion disposed perpendicular to the first portion, the first portion completely covering the vertical portion of the first terminal, and the second portion covering the horizontal portion of the first terminal At least part.
As a further improvement of the present invention, the electrical connector further includes a metal casing mounted on the insulative housing, the metal casing includes a pair of side walls and a top wall connecting the pair of side walls, the side wall height of the metal casing is higher than the insulation The height of the body.
As a further improvement of the present invention, the rear end of the top wall of the metal casing is provided with an elastic portion that extends obliquely toward the top of the insulating body.
As a further improvement of the present invention, one of the pair of metal housings is provided with a slot extending from the rear end to the side wall, and the insulating body is provided with a protrusion that cooperates with the slot.
The electrical connector of the present invention can not only strengthen the structural strength of the welded structure of the conductive terminal by providing a fixing base integrally formed with the conductive terminal, but also can better control the position and flatness.

100‧‧‧Electrical connector
10‧‧‧Insulated body
101‧‧‧ front wall
102‧‧‧ Back wall
103‧‧‧ top wall
104‧‧‧ bottom wall
105‧‧‧ right wall
11‧‧‧Docking Department
110‧‧‧ receiving trough
111‧‧‧ containment chamber
112‧‧‧Terminal mounting slot
113‧‧‧Snap block
114‧‧‧Bumps
115‧‧‧Part 1
116‧‧‧Part II
117‧‧‧ slot
118‧‧‧ raised parts
119‧‧‧ positioning slot
12‧‧‧Extended wall
121‧‧‧Installation slot
13‧‧‧ accommodating space
20‧‧‧Electrical terminals
201‧‧‧First terminal
202‧‧‧second terminal
21‧‧‧Contacts
22‧‧‧Welding tail
23‧‧‧Bends
231‧‧‧ horizontal department
232‧‧‧Vertical
30‧‧‧ Fixed seat
301‧‧‧Installation block
31‧‧‧The first part
32‧‧‧Part II
40‧‧‧Metal housing
41‧‧‧ side wall
410‧‧‧ slot
411‧‧‧Snap hole
412‧‧‧Installation feet
42‧‧‧ top wall
421‧‧‧Flexible Department

The first figure is a 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.
The third figure is an exploded view of the electrical connector shown in the second figure.
The fourth figure is a cooperative perspective view of the insulating body, the conductive terminals and the fixing seat shown in the second figure.
The fifth figure is a perspective view of the insulative body shown in the second figure.
The sixth figure is another perspective view of the insulating body shown in the fifth figure.
The seventh figure is a perspective view of the conductive terminal shown in the second figure.
The eighth figure is a perspective view of the mount shown in the second figure.
The ninth drawing is a perspective view of the metal casing shown in the second figure.

Referring to the first to third figures, the electrical connector 100 of the present invention is surface soldered to a circuit board (not shown) and can be mated with a mating connector (not shown). The electrical connector 100 includes an insulative housing 10 , a plurality of conductive terminals 20 received in the insulative housing 10 , a mounting base 30 integrally formed with the conductive terminals 20 , and a metal housing 40 mounted on the insulative housing 10 . In the present embodiment, the aforementioned electrical connector 100 is of a right angle mounting type, which can also be designed as a vertical mounting type as needed.
As shown in the first to sixth figures, the insulative housing 10 includes a forwardly extending abutting portion 11 and a pair of extending walls 12 extending rearward from opposite sides of the abutting portion 11, respectively. The abutting portion 11 and the pair of extending walls 12 together form a receiving space 13 for receiving the fixing base 30. A receiving groove 110 is defined in the mating portion 11 for receiving the mating connector. The abutting portion 11 includes a front wall 101, a rear wall 102 opposite to the front wall 101, a top wall 103 connecting the front wall 101 and the rear wall 102, a bottom wall 104 disposed opposite the top wall 103, and a front wall 101 connected thereto. The rear wall 102, the top wall 103 and the left and right side walls 105 of the bottom wall 104. The front wall 101, the rear wall 102, the top wall 103, the bottom wall 104, and the left and right side walls 105 are collectively formed to surround the receiving groove 110. The rear wall 102, the bottom wall 104, and the left and right side walls 105 collectively define a receiving cavity 111 formed below the receiving groove 110. In the present embodiment, the receiving groove 110 and the receiving cavity 111 are substantially rectangular in cross section. Both the receiving groove 110 and the receiving cavity 111 penetrate the front wall 101. The top wall 103 and the bottom wall 104 are each provided with a terminal mounting groove 112 for communicating with the receiving slot 110 for mounting the conductive terminal 20. The aforementioned terminal mounting groove 112 penetrates the rear wall 102 to facilitate insertion of the conductive terminal 20 from the rear wall 102 into the terminal mounting groove 112.
The pair of extension walls 12 extend rearward at positions where the left and right side walls 105 intersect the rear wall 102, respectively. The pair of extension walls 12 are each provided with a mounting groove 121, and the mounting groove 121 extends from the rear to the front. Each of the left and right side walls 105 is provided with a buckle block 113 and a protrusion 114 located below the buckle block 113. The aforementioned bump 114 includes a first portion 115 extending outward from the left side wall 105 or the right side wall 105 and a second portion 116 extending from the first portion 115. The second portion 116 is larger in size than the first portion 115. The left side wall 105 or the right side wall 105 thus forms a slot 117 with the respective first portion 115 and second portion 116. The rear wall 102 is provided with a plurality of rearwardly projecting convex portions 118 at a position close to the bottom wall 104, and a positioning groove 119 is formed between the adjacent two convex portions 118.
Referring to FIGS. 7 to 7 together, each of the conductive terminals 20 includes a contact portion 21, a solder tail portion 22, and a bent portion 23 connecting the contact portion 21 and the solder tail portion 22. The contact portion 21 is inserted into the corresponding terminal mounting groove 112 from the receiving space 13 and exposed in the receiving groove 110 of the mating portion 11 to be electrically connected to the mating connector inserted into the receiving slot 110. The solder tail 22 extends parallel to the aforementioned circuit board for surface soldering to the aforementioned circuit board. The bent portion 23 includes a horizontal portion 231 connected to the contact portion 21 and a vertical portion 232 connected to the solder tail portion 22. The plurality of conductive terminals 20 include a first terminal 201 arranged above and a second terminal 202 arranged below the first terminal 201. The contact portion 21 of the first terminal 201 is disposed above the contact portion 21 of the second terminal 202. The solder tail 22 of the first terminal 201 is disposed behind the solder tail 22 of the second terminal 202. In this embodiment, the solder tail 22 of the first terminal 201 and the solder tail 22 of the second terminal 202 extend in the same direction. In other embodiments, the solder tail 22 of the first terminal 201 and the solder tail 22 of the second terminal 202 may extend in opposite directions. The length of the vertical portion 232 of the first terminal 201 is greater than the length of the vertical portion 232 of the second terminal 202.
Referring to the third to eighth figures, the mounting base 30 is provided with a mounting block 301 that cooperates with the corresponding mounting slot 121. The aforementioned fixing base 30 includes a first portion 31 and a second portion 32 disposed perpendicularly to the first portion 31, and the aforementioned mounting block 301 is disposed on the first portion 31. The aforementioned fixing base 30 is integrally formed on the first terminal 201. The first portion 31 of the fixing base 30 completely covers the vertical portion 232 of the first terminal 201, and the second portion 32 covers at least a portion of the horizontal portion 231 of the first terminal 201. The first portion 31 of the fixing base 30 completely covers the vertical portion 232 of the first terminal 201, so that the structural strength of the welded structure of the first terminal 201 can be enhanced. The fixing seat 30 is integrally formed on the first terminal 201, so that the positive position and the flatness of the solder tail 22 of the first terminal 201 are well controlled, so that the solder tail 22 of the first terminal 201 and the circuit board can be avoided. A virtual weld is created between them.
The vertical portion 232 of the second terminal 202 is received in the corresponding positioning slot 119, so that the positive position and the flatness of the solder tail 22 of the second terminal 202 are well controlled, so that the soldering of the second terminal 202 can be avoided. A dummy weld is created between the tail 22 and the board.
Referring to FIG. 9 and in conjunction with the third and sixth figures, the metal casing 40 includes a pair of side walls 41 and a top wall 42 connecting the pair of side walls 41. The side wall 41 of the metal casing 40 is higher in insulation than the insulation. The height of the body 10. The rear end of the top wall 42 of the metal casing 40 is provided with an elastic portion 421 that extends obliquely toward the top wall 103 of the insulative housing 10. The pair of side walls 41 of the metal housing 40 are provided with a slot 410 extending forward from the rear end and a latching hole 411 extending through the side wall 41. The slot 410 cooperates with the protrusion 114 on the insulative housing 10, and the latching hole 411 cooperates with the latching block 113 on the insulative housing 10, so that the metal housing 40 can be fixedly mounted to the insulative housing 10 on. The side wall 41 of the metal casing 40 is further provided with a plurality of perforated mounting legs 412 and a plurality of surface and connecting mounting legs 412 mounted to the circuit board.
In summary, the electrical connector 100 of the present invention not only integrally fixes the fixing base 30 on the first terminal 201, thereby not only strengthening the structural strength of the welded structure of the first terminal 201, but also making the first terminal The positive position and flatness of the solder tail 22 of 201 are well controlled, thereby preventing the occurrence of a virtual solder between the solder tail 22 of the first terminal 201 and the circuit board.
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‧‧‧Electrical connector

10‧‧‧Insulated body

11‧‧‧Docking Department

113‧‧‧Snap block

114‧‧‧Bumps

12‧‧‧Extended wall

121‧‧‧Installation slot

22‧‧‧Welding tail

30‧‧‧ Fixed seat

31‧‧‧The first part

32‧‧‧Part II

40‧‧‧Metal housing

41‧‧‧ side wall

410‧‧‧ slot

411‧‧‧Snap hole

412‧‧‧Installation feet

42‧‧‧ top wall

421‧‧‧Flexible Department

Claims (10)

An electrical connector is surface-mounted to a circuit board for connection with a mating connector, wherein the electrical connector includes: an insulative housing, the insulative housing includes a forwardly extending abutting portion, and the receiving portion is provided with a receiving slot therein. The plurality of conductive terminals are received in the insulative housing, the plurality of conductive terminals are received in the insulative housing, and the conductive terminals include a contact portion and a solder tail portion, and the contact portion is exposed in the receiving groove of the mating portion for docking connection The electrical connection is formed, the solder tail extends parallel to the circuit board, and the fixing base is integrally formed with the conductive terminal. The electrical connector of claim 1, wherein the insulative housing comprises a pair of extending walls extending rearward from opposite sides of the mating portion, wherein the abutting portion and the pair of extending walls together form a receiving seat. space. The electrical connector of claim 2, wherein the pair of extension walls are provided with mounting grooves, and the fixing seat is provided with a mounting block that cooperates with the corresponding mounting groove. The electrical connector of claim 1, wherein the plurality of conductive terminals further comprise a bent portion connecting the contact portion and the solder tail portion, wherein the bent portion includes a horizontal portion connected to the contact portion and connected to the solder tail portion Vertical part. The electrical connector of claim 4, wherein the plurality of conductive terminals comprise a first terminal arranged above and a second terminal arranged below the first terminal, wherein the contact portion of the first terminal is disposed in the second Above the contact portion of the terminal, the solder tail of the first terminal is disposed behind the solder tail of the second terminal. The electrical connector of claim 5, wherein the length of the vertical portion of the first terminal is greater than the length of the vertical portion of the second terminal, and the fixing seat is integrally formed on the first terminal. The electrical connector of claim 6, wherein the fixing base comprises a first portion and a second portion disposed perpendicular to the first portion, the first portion completely covering a vertical portion of the first terminal, and the second portion is Covering at least a portion of the horizontal portion of the first terminal. The electrical connector of claim 1, wherein the electrical connector further comprises a metal housing mounted on the insulative housing, the metal housing comprising a pair of side walls and a top wall connecting the pair of side walls, the metal The height of the side wall of the housing is higher than the height of the insulating body. The electrical connector of claim 8, wherein the rear end of the top wall of the metal casing is provided with an elastic portion that extends obliquely toward the top of the insulating body. The electrical connector of claim 8, wherein one of the pair of metal housings has a slot extending from the rear end to the side wall, and the insulating body is provided with a protrusion that cooperates with the slot.