CN110492271B

CN110492271B - Electrical connector

Info

Publication number: CN110492271B
Application number: CN201810454382.3A
Authority: CN
Inventors: 赵俊
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Foxconn Interconnect Technology Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2023-03-28
Anticipated expiration: 2038-05-14
Also published as: CN110492271A

Abstract

The invention provides an electric connector, which comprises a terminal module and a shell coated outside the terminal module, wherein the terminal module comprises an insulating body and a plurality of conductive terminals fixed on the insulating body, each conductive terminal comprises a fixing part fixed on the insulating body, a contact part formed by extending forwards from the fixing part and a welding part formed by extending backwards from the fixing part, the wall surface of the shell is provided with a glue filling port for filling sealant to block a gap between the shell and the insulating body, when the welding part is welded on a circuit board, the sealant is filled into the glue filling port to block the gap between the shell and the insulating body, and after a semi-finished product is welded and fixed on the circuit board, the sealant is filled, so that the problem that bubbles appear on the solidified sealant or the joint of the solidified sealant and a base cracks to influence the waterproof performance in the process of welding after the sealant is filled firstly is filled and then is solved.

Description

Electrical connector

[ technical field ] A method for producing a semiconductor device

The present invention relates to an electrical connector, and more particularly to an electrical connector suitable for positive and negative insertion.

[ background of the invention ]

Referring to chinese utility model No. CN206471572U, it announces an electric connector, including terminal module and cladding in the terminal module is outer shields the casing, the terminal module include insulator and fix in a plurality of conductive terminal in the insulator, insulator includes the base and by the hyoplastron that the base stretched out forward and formed, the base indent is equipped with the ring channel, and a waterproof circle is installed in the ring channel with shutoff terminal module and shield the space between the casing, when nevertheless welding this electric connector to the circuit board, can make waterproof circle gassing or the junction between the base appear the fracture and can not reach waterproof effect owing to the high temperature that the welding produced.

Therefore, there is a need to provide a new electrical connector to overcome the above-mentioned drawbacks.

[ summary of the invention ]

The invention aims to provide an electric connector which is firstly welded to a circuit board and then sealed with a glue to form a waterproof part.

The purpose of the invention is realized by the following technical scheme: an electric connector comprises a terminal module and a shell coated outside the terminal module, wherein the terminal module comprises an insulating body and a plurality of conductive terminals fixedly held on the insulating body, each conductive terminal comprises a fixing part fixedly held on the insulating body, a contact part formed by forward extension of the fixing part and a welding part formed by backward extension of the fixing part, a glue filling port for filling sealant to seal a gap between the shell and the insulating body is formed in the wall surface of the shell, and when the welding part is welded on a circuit board, the sealant is filled into the glue filling port to seal the gap between the shell and the insulating body.

Furthermore, the insulating body comprises a base and a tongue plate formed by extending forwards from the base, an annular groove is concavely formed in the periphery of the base, and the sealant is filled into the annular groove from the sealant filling port to form a waterproof part.

Further, the base is provided with a channel which is formed by extending from the upper surface of the base to the lower surface of the base in a concave mode, and the channel is communicated with the upper half portion of the annular groove and does not penetrate through the lower half portion of the annular groove.

Furthermore, the sealant is poured into the channel from the sealant pouring opening and filled into the channel, and the sealant and the part of the annular groove filled with the sealant form the waterproof part together.

Furthermore, the holding part of the conductive terminal is held on the base and partially exposed in the channel, and the sealant wraps four surfaces of the holding part exposed in the channel.

Furthermore, the shell comprises a cylindrical metal shell fixed outside the base in a surrounding mode and an outer shell sleeved outside the metal shell, a first glue filling opening communicated with the annular groove is formed in the wall surface of the metal shell, and a second glue filling opening communicated with the first glue filling opening is formed in the position, corresponding to the first glue filling opening, of the outer shell.

Furthermore, the first glue filling port, the second glue filling port and the channel are mutually overlapped and communicated in the vertical direction.

Furthermore, the terminal module further comprises a metal shielding sheet fixed in the insulating body, the metal shielding sheet is provided with a flat plate part, the flat plate part is provided with a through hole which penetrates through the upper surface and the lower surface of the flat plate part and is communicated with the channel, and the through hole is filled with the sealant.

Furthermore, the insulation body comprises a first insulation body provided with a first base part, a second insulation body which is matched with the first insulation body up and down and provided with a second base part, and a third insulation body which is formed on the outer sides of the first insulation body and the second insulation body and provided with a third base part, wherein the first base part and the second base part are respectively provided with a first channel which is communicated up and down, the third base part is provided with an upper half part and a lower half part, the upper half part is provided with a second channel which is communicated up and down, and the first channel and the second channel are communicated in the up and down direction to form the channel.

Compared with the prior art, the invention has the following beneficial effects: the first shaping of this application is not glued the shaping and is had semi-manufactured goods connector of waterproof portion, pours sealed glue formation waterproof portion again after being fixed in on a circuit board with semi-manufactured goods connector welded earlier, and the shaping can avoid because of pouring sealed glue welded in-process again earlier, because high temperature makes waterproof portion appear the bubble or appear the waterproof performance that influences electric connector with the phenomenon that the junction of base appears the fracture.

[ description of the drawings ]

Fig. 1 is a perspective assembly view of the electrical connector of the present invention.

Fig. 2 is a perspective assembly view of fig. 1 viewed from another direction.

Fig. 3 is a partially exploded perspective view of the electrical connector of the present invention.

Fig. 4 is a further partially exploded perspective view of the electrical connector of the present invention.

Fig. 5 is a partially exploded perspective view of fig. 4 viewed from another direction.

Fig. 6 is a partially exploded perspective view of a terminal module of the electrical connector of the present invention.

Fig. 7 is a partially exploded perspective view of fig. 6 viewed from another direction.

Fig. 8 is an exploded perspective view of a terminal module of the electrical connector of the present invention.

Fig. 9 is an exploded perspective view of fig. 8 viewed from another direction.

Fig. 10 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A of fig. 3.

Fig. 11 is a sectional view taken along the line B-B in fig. 1.

[ description of main reference symbols ]

Terminal module 1 of electric connector 100

Insulating body 2 first insulating body 21

First base 211 first channel 2110

The first tongue plate 212 has a first retaining hole 2121

First mounting portion 213 and second retaining hole 2131

Second base 221 of second insulating body 22

The first latching portion 2221 of the second tongue plate 222

Second mounting portion 223 second catching portion 2231

Third base 231 of third insulating body 23

Second passage 2311 annular groove 2312

Third tongue 232 base 24

Tongue 25 mounting portion 26

Conductive terminal 3 upper row conductive terminal 31

Lower row of conductive terminals 32 holding part 33

Contact 34 weld 35

Flat plate part 41 of metal shielding sheet 4

Through opening 411 fillet 42

Metal case 5 accommodating space 50

The first glue filling opening 511 of the upper wall surface 51

Lower wall 52 splice joint 521

Side wall surface 53 outer casing 6

Top wall 611 of main body 61

Second glue filling opening 6111 bottom wall surface 612

Sidewall 613 retaining leg 6131

Fixed foot 6132 covering part 62

Hook 621 waterproof patch 7

Waterproof portion 8

The following detailed description will further illustrate the invention in conjunction with the above-described figures.

[ detailed description ] embodiments

Hereinafter, an embodiment of the electrical connector of the present invention will be described with reference to fig. 1 to 11.

Referring to fig. 1 to 5, the present invention provides an electrical connector 100, which includes a terminal module 1, a housing (not numbered) covering the terminal module 1, a waterproof patch 7 and a waterproof portion 8. The housing comprises a metal housing 5 and an outer housing 6.

Referring to fig. 4 to 9, the terminal module 1 includes an insulating housing 2, a plurality of conductive terminals 3 fixed on the insulating housing 2, and a metal shielding plate 4.

The insulation body 2 includes a first insulation body 21, a second insulation body 22 vertically connected with the first insulation body 21, and a third insulation body 23 injection-molded outside the first insulation body 21 and the second insulation body 22. The insulative housing 2 further includes a base 24, a tongue 25 extending forward from the base 24, and a mounting portion 26 extending rearward from the base 24. The first insulation body 21 includes a first base 211, a first tongue plate 212 formed by extending forward from the first base 211, and a first mounting portion 213 formed by extending backward from the first base 211. A first retaining hole 2121 is formed in the middle of the front end of the first tongue plate 212, and a pair of second retaining holes 2131 are formed in two sides of the rear end of the first mounting portion 213. The second insulating body 22 includes a second base 221, a second tongue plate 222 formed by extending forward from the second base 221, and a second mounting portion 223 formed by extending backward from the second base 221. A first retaining portion 2221 is protruded upward from the middle position of the front end of the second tongue plate 222, and a pair of second retaining portions 2231 is protruded upward from both sides of the rear end of the second mounting portion 223. The first base 211 and the second base 221 are both provided with a first channel 2110 which penetrates up and down. The third insulating body 23 includes a third base 231 and a third tongue 232 extending forward from the third base 231. The third base 231 has an upper half and a lower half, and the upper half has a second passage 2311 penetrating vertically therethrough. The periphery of the third base 231 is recessed with an annular groove 2312, and the second passage 2311 communicates with the annular groove 2312. The first base 211, the second base 221, and the third base 231 together form the base 24, the first tongue plate 212, the second tongue plate 222, and the third tongue plate 232 together form the tongue plate 25, and the first mounting portion 213 and the second mounting portion 223 together form the mounting portion 26. Naturally, the annular groove 2312 is formed at the periphery of the base 24, the first passage 2110 and the second passage 2311 are communicated in the up-down direction to form a passage (not numbered) which is formed inside the base 24 and extends from the upper surface of the base 24 in a downward concave manner, and the passage is communicated with the upper half part of the annular groove 2312 without penetrating to the lower half part of the annular groove 2312.

Referring to fig. 8 to 11, the plurality of conductive terminals 3 include an upper row of conductive terminals 31 and a lower row of conductive terminals 32, and the upper row of conductive terminals 31 and the lower row of conductive terminals 32 are the same in number and are arranged in an opposite sequence, so that the electrical connector 100 supports a forward direction and a reverse direction for mating with a mating connector (not shown).

The upper row of contacts 31 and the lower row of contacts 32 each include a holding portion 33, a contact portion 34 extending forward from the holding portion 33, and a soldering portion 35 extending rearward from the holding portion 33. The upper row of conductive terminals 31 is injection molded on the first insulating body 21, and the lower row of conductive terminals 32 is injection molded on the second insulating body 22. The contact portion 34 of each row of the conductive terminals 3 is exposed on the outer surface of the first tongue plate 212 and the second tongue plate 222, the holding portion 33 of each row of the conductive terminals 3 is held on the first base portion 211 and the second base portion 221, and is partially exposed in the channel, and the welding portion 35 of each row of the conductive terminals 3 extends out of the first mounting portion 213 and the second mounting portion 223.

Referring to fig. 8 and 9, the metal shielding plate 4 includes a flat plate portion 41 and solder tails 42 extending downward from two sides of the rear end of the flat plate portion 41. The flat plate portion 41 is provided with a through hole 411 penetrating the upper and lower surfaces thereof. The metal shielding plate 4 is clamped between the first insulating body 21 holding the upper row of conductive terminals 31 and the second insulating body 22 holding the lower row of conductive terminals 32. The through opening 411 is in communication with the channel. The first retaining portion 2221 of the second tongue plate 222 is retained in the first retaining hole 2121 of the first tongue plate 212, and the pair of second retaining portions 2231 of the second mounting portion 223 is retained in the pair of second retaining holes 2131 of the first mounting portion 213.

The third insulator body 23 is formed by injection molding outside the first insulator body 21 holding the upper row of conductive terminals 31, the second insulator body 22 holding the lower row of conductive terminals 32, and the metal shielding plate 4 clamped between the first insulator body 21 and the second insulator body 22.

Referring to fig. 1 to 5, the metal housing 5 is cylindrical and includes an upper wall 51, a lower wall 52 opposite to the upper wall 51, two side walls 53 connecting the upper wall 51 and the lower wall 52, and a receiving space 50 surrounded by the walls. The metal shell 5 is formed by bending after being punched and formed, and therefore a splicing seam 521 is arranged at the splicing position of the lower wall surface 52. The upper wall 51 is provided with a first through glue filling opening 511. The metal shell 5 is annularly arranged and fixed outside the base 24, and the first glue filling port 511 is communicated with the annular groove 2312 in the vertical direction.

The waterproof patch 7 is attached to the upper wall surface 51 and the lower wall surface 52 of the metal case 5.

The outer casing 6 is made of metal material, and includes a cylindrical main body 61 sleeved outside the metal casing 5, and a covering part 62 located at the rear end of the main body 61. The body 61 includes a top wall surface 611, a bottom wall surface 612 facing the top wall surface 611, and two side wall surfaces 613 connecting the top wall surface 611 and the bottom wall surface 612. A pair of holding legs 6131 are formed by extending the two side wall surfaces 613 backwards, and a hook 621 overlapping the outer side surfaces of the holding legs 6131 is arranged on the covering part 62. A pair of fixing legs 6132 is formed on the outer side of the side wall 613. The top wall 611 is provided with a second through glue filling opening 6111.

The outer shell 6 is sleeved outside the metal shell 5, and a second glue filling port 6111 on the outer shell 6 is communicated with the first glue filling port 511 on the metal shell 5 in the vertical direction. A semi-finished product is formed, and the first glue filling opening 511 and the second glue filling opening 6111 on the semi-finished product are mutually overlapped and communicated with the annular groove 2312 and the channel on the base 24 in the vertical direction.

The soldering portion 35 of the conductive terminal 3 of the semi-finished product and the fixing pin 6131 and the fixing pin 6132 of the outer housing 6 are respectively soldered and fixed to a circuit board (not shown). And after the welding and fixing are finished, sealant is poured into the second sealant pouring port 6111, flows through the first sealant pouring port 511, is poured into the annular groove 2312, the channel consisting of the first channel 2110 and the second channel 2311 and the through port 411, and is filled and solidified to form a waterproof part 8 positioned in the annular groove 2312, the channel and the through port 411. In the process of forming the waterproof portion 8, the sealant covers four surfaces of the holding portion 33 of the conductive terminal 3 exposed in the channel. The waterproof portion 8 blocks a gap between the metal case 5 and the insulating body 2 to prevent entry of moisture. The semi-finished product is welded and fixed on a circuit board and then the sealant is poured, so that the problem that the waterproof performance is influenced due to the fact that bubbles appear in the waterproof part or the joint of the waterproof part and the base 24 cracks due to high temperature in the process of pouring the sealant and then welding is avoided.

The above description is only a part of the embodiments of the present invention, and not all embodiments, and any equivalent variations of the technical solutions of the present invention, which are made by those skilled in the art through reading the present specification, are covered by the claims of the present invention.

Claims

1. An electric connector comprises a terminal module and a shell coated outside the terminal module, wherein the terminal module comprises an insulating body and a plurality of conductive terminals fixed on the insulating body, and each conductive terminal comprises a fixing part fixed on the insulating body, a contact part formed by forward extension of the fixing part and a welding part formed by backward extension of the fixing part, and the electric connector is characterized in that: and when the welding part is welded on a circuit board, the sealant is poured into the sealant pouring port to plug the gap between the shell and the insulation body.

2. The electrical connector of claim 1, wherein: the insulating body comprises a base and a tongue plate formed by extending the base forwards, an annular groove is concavely formed in the periphery of the base, and the sealant is poured into the annular groove from the glue pouring port and filled in the annular groove to form a waterproof part.

3. The electrical connector of claim 2, wherein: the base is provided with a channel formed by downwards sunken extending from the upper surface of the base, and the channel is communicated with the upper half part of the annular groove and does not penetrate to the lower half part of the annular groove.

4. The electrical connector of claim 3, wherein: the sealant is poured into the channel from the sealant pouring opening and filled into the channel, and the sealant and the part of the annular groove filled with the sealant form the waterproof part together.

5. The electrical connector of claim 4, wherein: the fixing part of the conductive terminal is fixed on the base and partially exposed in the channel, and the sealant wraps four surfaces of the fixing part exposed in the channel.

6. The electrical connector of claim 3, wherein: the shell comprises a cylindrical metal shell fixed outside the base in a surrounding mode and an outer shell sleeved outside the metal shell, a first glue filling opening communicated with the annular groove is formed in the wall surface of the metal shell, and a second glue filling opening communicated with the first glue filling opening is formed in the position, corresponding to the first glue filling opening, of the outer shell.

7. The electrical connector of claim 6, wherein: the first glue filling port, the second glue filling port and the channel are mutually overlapped and communicated in the vertical direction.

8. The electrical connector of claim 3, wherein: the terminal module further comprises a metal shielding sheet fixed in the insulating body, the metal shielding sheet is provided with a flat plate part, the flat plate part is provided with a through hole which penetrates through the upper surface and the lower surface of the flat plate part and is communicated with the channel, and the through hole is filled with sealant.

9. The electrical connector of claim 3, wherein: the insulation body comprises a first insulation body provided with a first base part, a second insulation body which is matched with the first insulation body up and down and provided with a second base part, and a third insulation body which is formed on the outer sides of the first insulation body and the second insulation body and provided with a third base part, wherein the first base part and the second base part are respectively provided with a first channel which is communicated up and down, the third base part is provided with an upper half part and a lower half part, the upper half part is provided with a second channel which is communicated up and down, and the first channel and the second channel are communicated in the up and down direction to form the channel.