TWI532266B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having a simple structure.

The board-to-board electrical connector is an electrical connector for realizing electrical signal transmission between two circuit boards. For related art, please refer to the Republic of China new patent No. M250386. The board-to-board electrical connector includes an insulative housing, a plurality of terminals received in the insulative housing, a pair of shielding shells disposed on the insulative housing, and a holding piece fixed to the two ends of the insulative housing. The shielding shell comprises an elongated plate-shaped main body portion, a plurality of elastic pieces extending along the edge of the main body portion, a plurality of elastic pieces and a side portion formed by bending the main body portion from both ends of the long axis. The side portions are inserted into the end walls of the two ends of the insulating body, and the holding pieces are fixed to the two ends of the insulating body and corresponding to the outer side of the position where the side portions are located.

However, in the prior art board-to-board electrical connector, a pair of shielding shells are disposed on both sides of the insulating body, and the two ends of the insulating body are respectively provided with holding members. In the production, the shielding shell and the holding member respectively need different stamping and forming, the mold cost is high, and the manufacturing process is cumbersome. When assembling, the shielding shell and the holding member need to be assembled to the insulating body in different processes, and the assembly process is cumbersome, so that the defect rate is increased in a large-scale production process.

Therefore, it is necessary to design a simpler electrical connector to overcome the deficiencies of the prior art.

In view of the above, it is an object of the present invention to provide an electrical connector that is simple in structure and convenient to assemble.

The object of the present invention is achieved by the following technical solutions: an electrical connector comprising an insulative housing, a plurality of terminals received in the insulative housing, and a shielding shell disposed on the insulative housing, the insulative housing having a bottom wall, Extending upwardly from a central position of the bottom wall to form a substantially rectangular parallelepiped boss portion, a side wall and an end wall extending vertically upward from the bottom wall edge, and the side wall, the end wall and the boss portion are formed to receive the docking connector The terminal is fixed on the sidewall of the insulative housing, and the terminal includes a contact portion that partially protrudes into the receiving space, a fixing portion that is fixed on the sidewall of the insulating body, and a soldering leg that protrudes outside the insulating body. The shielding shell comprises two shielding shells of the same structure, and the two shielding shells are overlapped on the end wall of the insulating body to surround the insulating body.

Compared with the prior art, the electrical connector of the present invention forms a side portion that can overlap with each other by two ends of the shielding shell, and a holding portion is disposed at one end of the side portion near the side wall, and the holding portion is provided with welding held on the circuit board. unit. The entire electrical connector is more stably fixed on the circuit board by the holding portion, thereby eliminating the holding member provided in the prior art electrical connector, which is simple in structure, convenient in assembly, and at the same time saves cost.

100‧‧‧Electrical connector

1‧‧‧Insulating body

10‧‧‧ bottom wall

11‧‧‧Boss

111‧‧‧ channel

13‧‧‧ peripheral wall

14‧‧‧ accommodating space

15‧‧‧ side wall

151‧‧‧ holding wall

152‧‧‧Retaining trough

153‧‧‧Fixed wall

154‧‧‧ card wall

16‧‧‧End wall

161‧‧‧ Reception trough

2‧‧‧ terminals

21‧‧‧Contacts

211‧‧‧First foot

212‧‧‧second foot

22‧‧‧Connecting Department

23‧‧‧Fixed tablets

24‧‧‧ soldering feet

25‧‧‧Contact end

26‧‧‧ Fixed Department

3‧‧‧Shaping shell

31‧‧‧ Main body

311‧‧‧Strengthened ribs

32‧‧‧ Holding Department

321‧‧‧ thorn

322‧‧‧Weld Department

33‧‧‧ side

331‧‧‧ convex hull

34‧‧‧Contacts

35‧‧‧ card gap

36‧‧‧welding piece

The first figure is a perspective assembled view of the electrical connector of the present invention; the second figure is a partial exploded view of the electrical connector shown in the first figure, wherein the shielding shell and some of the terminals are separated; A perspective view of the electrical connector shown at another angle.

Referring to the first to third figures, a specific embodiment of the electrical connector 100 of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to the first to third figures, the electrical connector 100 of the present invention includes an insulative housing 1 having a substantially rectangular parallelepiped shape, a plurality of terminals 2 housed in the insulative housing 1 and shieldings respectively disposed on the insulative housing 1. The casing, the shielding shell comprises two shielding shells 3 of the same structure and can be used for shielding.

Referring to the second and third figures, the insulative housing 1 is made of an insulating material and has a substantially rectangular parallelepiped shape, and includes a bottom wall 10 and a boss extending upward from a central position of the bottom wall 10 to form a substantially rectangular parallelepiped. The portion 11 and the peripheral wall 13 provided around the boss portion 11. The peripheral wall 13 extends vertically upward from the edge of the bottom wall 10, and an annular receiving space 14 is formed between the peripheral wall 13 and the boss portion 11 for receiving the docking connector. For convenience of description, the long sides of both sides of the above-mentioned peripheral wall 13 are defined as side walls 15, and the short sides of both ends are defined as end walls 16. The receiving space 14 is formed by the side wall 15, the end wall 16, and the boss portion 11 and is symmetrically disposed about the longitudinal center axis and the lateral center axis of the insulating body 1, respectively.

The inner side surface, the outer side surface, and the top surface of the side wall 15 are respectively recessed inwardly and formed with a plurality of terminal fixing walls 151 arranged at intervals, and the terminal holding wall 151 is for fixing the terminal 2. A plurality of channels 111 are formed in the boss portion 11 corresponding to the positions of the terminal holding walls 151. The channels 111 are in one-to-one correspondence with the terminal holding walls 151 and the openings are disposed facing the terminal holding walls 151. A fixing wall 153 is formed on the outer side surface of the side wall 15 for fixing the shielding shell 3 , and the fixing wall 153 is disposed between the adjacent two terminal holding walls 151 of the side wall 15 . A holding wall 154 is formed inwardly adjacent to the fixing wall 153 and the side wall 15 , and a corresponding portion of the shielding shell 3 straddles and is clamped on the holding wall 154 to realize the shielding shell 3 and the insulating body 1 . Hold. The end wall 16 is provided with a receiving groove 161, and the receiving groove 161 is intermediate It is connected to the accommodating space 14 . The side wall 15 is provided with a holding groove 152 on the outer side surface of the two ends, and the holding groove 152 is communicated with the receiving groove 161. The holding groove 152 and the receiving groove 161 are both for receiving the shielding shell 3 .

Referring to the third figure, the terminal 2 is made of a metal sheet and includes a substantially U-shaped contact portion 21. The first leg 211 of the contact portion 21 adjacent to the corresponding side wall 15 extends outwardly in a substantially horizontal direction. The portion 22 extends downwardly from the connecting portion 22 to form a fixing piece 23, and the bottom end of the fixing piece 23 extends horizontally. The insulating body 1 is formed with a soldering leg 24 and a second leg extending from the contact portion 21 away from the corresponding side wall 15. The arc 212 is bent toward the connecting portion 22 and protrudes into the contact end 25 in the receiving space 14. The first leg 211, the connecting portion 22 and the fixing piece 23 of the contact portion 21 together form a fixing portion 26 having a substantially n-shaped shape. When the terminal is assembled, the fixing portion 26 straddles the terminal holding wall 151 of the two side walls 15 of the insulative housing 1 to support the terminal 2 and the insulative housing 1 , and the contact portion 21 partially protrudes into the receiving space 14 for Electrically contacting the mating connector, wherein the second leg 212 of the contact portion 21 away from the side wall 15 is partially received in the corresponding channel 111 for limiting the contact portion 21 of the terminal 2 to prevent the docking connector The contact portion 21 of the terminal 2 is swayed or twisted when inserted into the accommodating space 14, thereby ensuring good contact.

Referring to the first to third figures, the shielding shell 3 is stamped from a metal sheet and comprises two shielding shells 3 of the same structure. The two shielding shells 3 are overlapped at the end wall 16 of the insulating body 1 to form a ring. The cover body 3 includes a main body portion 31 which is disposed outside the side wall 15 of the insulative housing 1 and is bent from the two ends of the main body portion 31 toward the receiving space 14 and extends parallel to the main body portion 31. A retaining portion 32 is formed and a side portion 33 that is fixed to the end wall 16 of the insulative housing 1 is formed by bending and extending perpendicularly to the retaining portion 32. The holding portion is connected to the main body portion and the side portion, and the side portion 33 of the shielding shell 3 is respectively associated with the main portion The body portion 31 and the holding portion 32 are vertically disposed.

A reinforcing rib 311 is formed on the central portion of the main body portion 31 of the shielding shell 3, and the reinforcing rib 311 is used to reinforce the strength of the main body portion 31 of the shielding shell 3. The contact piece 34 is formed along the upper side edge of the main body portion 31. The contact piece 34 protrudes into the receiving space 14 for connection with the grounding terminal of the mating connector, and extends along the lower edge of the main body portion 31 relative to the contact piece 34. The insulating body 1 is formed with the soldering piece 36. Connected to the board. A plurality of latching notches 35 are defined in the lower edge of the main body portion 31 corresponding to the latching wall 154 of the insulative housing 1 . The latching recesses 35 are correspondingly straddle and latched on the latching wall 154 .

The holding portion 32 is correspondingly engaged with the holding groove 152 of the insulative housing 1 . The two sides of the holding portion 32 are provided with spurs 321 corresponding to the inner side walls of the holding groove 152 , and the welding portion 322 is formed to extend outward along the holding portion 32 . Used to connect to a board.

The side portion 33 is correspondingly received in the receiving groove 161 of the end wall 16 of the insulative housing 1 , and the convex portion 331 is protruded from the end portion of one of the side portions 33 held in the same end wall 16 . The side portions 33 of the two shielding shells 3 in the receiving groove 161 on the same end wall 16 overlap each other, and the overlapping portions are exposed in the receiving space 14. The convex hull 331 is disposed at a position where the side portions 33 overlap each other, and the convex hull 331 makes the two side portions 33 more stable in resistive contact.

In summary, the creation meets the requirements of the invention patent, and the patent application is filed according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiments, and those skilled in the art should be equivalent to the equivalent modifications or changes made by God of the present invention. It is covered by the following patent application.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧Boss

14‧‧‧ accommodating space

2‧‧‧ terminals

3‧‧‧Shaping shell

34‧‧‧Contacts

Claims (8)

An electrical connector includes an insulating body, a plurality of terminals received in the insulating body, and a shielding shell disposed on the insulating body, wherein the insulating body is provided with a bottom wall and protrudes upward from a central position of the bottom wall to form a substantially rectangular parallelepiped a boss portion, a side wall and an end wall extending vertically upward from a bottom wall edge, wherein the side wall, the end wall and the boss portion surround a receiving space for receiving the mating connector, and the terminal is fixed to the insulating body The terminal includes a contact portion partially protruding into the receiving space, a fixing portion fixed on the sidewall of the insulating body, and a soldering foot protruding from the outside of the insulating body; wherein the shielding shell comprises two structures The same shielding shell, each of the shielding shells is provided with a main body portion which is disposed outside the side wall of the insulating body and a side portion which is retained in the end wall of the insulating body, and the side of the two shielding shells received in the same end wall The portions are overlapped with each other, and the overlapping portion is exposed in the receiving space, and the two shielding shells are annularly surrounding the insulating body. The electrical connector of claim 1, wherein the side portion of the same end wall is convexly provided with a convex hull, and the convex hull is disposed at a position where the two sides overlap each other. The electrical connector of claim 2, wherein the end wall of the insulative housing is provided with a receiving slot, and the middle portion of the receiving slot is disposed in communication with the receiving space, and the side of the shielding shell is received and held in the receiving slot. . The electrical connector of claim 1, wherein the shielding shell is provided with a holding portion connecting the main body portion and the side portion, the holding portion is disposed in parallel with the main body portion, and the side wall of the insulating body is correspondingly opened A holding groove for accommodating the holding portion. The electrical connector of claim 4, wherein the retaining portion is provided with a spur corresponding to the inner wall of the retaining groove, and a soldering portion is formed along the retaining portion for forming a soldering portion for the circuit. Board connection. The electrical connector of claim 1, wherein the upper side edge of the main body portion of the shielding case is bent to form a contact piece, and the contact piece protrudes into the receiving space. The electrical connector of claim 6, wherein the lower side edge of the main body portion is formed with a soldering piece for connecting to the circuit board with respect to the position of the contact piece. The electrical connector of claim 1, wherein the central portion of the main body of the shielding shell is stamped and convexly provided with a reinforcing rib.