TWI758536B - Electrical connector - Google Patents

Abstract

An electrical connector includes an insulative housing and a terminal module installed in the insulative housing. The insulative housing includes a rear wall and a tongue extending forwardly from the rear wall. The terminal module includes an insulative block and a plurality of terminals retained in the insulative block. The rear wall has a mounting groove opened rearwardly. The insulative block is mounted to the mounting groove from a rear - to - front direction. Each terminal includes a contact section extending into the tongue and exposed to a surface of tongue. A gap between the insulative block and the rear wall is filled with sealants, to obtain a good waterproof performance.

Description

electrical connector

The invention relates to an electrical connector, in particular to a waterproof sealing structure of the electrical connector.

For conventional technologies, please refer to the Chinese Mainland Invention Patent Application No. CN104538782A published on April 22, 2015, which discloses a waterproof socket electrical connector, which includes a rubber core shell, a cover shell, an insulating body and a sealing body, The rubber core shell includes a hollow opening, a plug side and a sealing side respectively located on both sides of the hollow opening. The cover shell is disposed in the hollow opening, and the cover shell includes an accommodating groove. The insulating body is arranged in the accommodating groove, and a plurality of terminals are formed on the insulating body. The sealing body is formed on the sealing side to fill the gap between the rubber core shell and the cover shell. At the same time, the sealing body also fills the bottom area where the plurality of terminals pass out of the base to increase the waterproof effect. The waterproof effect of the waterproof socket electrical connector is not good.

Therefore, it is necessary to design a solution to improve the above problems.

The technical problem to be solved by the present invention is to provide an electrical connector with a waterproof sealing structure and a better sealing effect.

In order to solve the above problems, the present invention can adopt the following technical solutions:

An electrical connector includes an insulating body and a terminal module mounted on the insulating body, the insulating body includes a rear wall and a tongue plate extending forward from the rear wall, the terminal module includes an insulating block and is fixed on the insulating block The plurality of conductive terminals, the rear wall is provided with a rearwardly opening installation slot, and the insulating block It is installed in the installation groove from back to front, each conductive terminal includes a contact portion extending into the tongue plate and exposed to the surface of the tongue plate, and the gap between the insulating block and the rear wall is filled with sealant.

Compared with the prior art, the present invention has the following effects: the sealing compound of the electrical connector is filled between the insulating block and the rear wall, so that the waterproof effect of the electrical connector is better.

100: Electrical connector

101: Butt cavity

11: Frame body

121: Projection

14: Buckle holding slot

151: Side

153: Card slot

155: Containment Slot

16: Top Wall

18: Sidewall

20: Terminal module

22: Conductive terminal

222: Contact Department

30: Inner shell

32: Second bottom wall

34: hook

41: First top wall

43: Card Holder

45: Soldering feet

47: Abutting Arm

10: Insulation body

102: Tongue plate

12: Main body

13: Extensions

15: Additional Department

152: Bending part

154: Rear

156: Containment Space

17: Bottom wall

19: Back Wall

190: Mounting slot

21: Insulation block

221: Fixed part

223: Welding Department

31: Second top wall

33: Second side wall

40: Outer shell

42: First side wall

44: Buckle slot

46: First back wall

50: Sealant

Figure 1 is a perspective view of the electrical connector of the present invention; Figure 2 is a perspective view of the electrical connector shown in Figure 1 from another perspective; Figure 3 is an exploded perspective view of the electrical connector shown in Figure 2; Figure 4 It is a further exploded perspective view of the electrical connector shown in the third figure; the fifth figure is an exploded perspective view of the electrical connector shown in the fourth figure from another perspective; the sixth figure is the electrical connector shown in the first figure along the VI- The cross-sectional view of the VI direction; and the following specific embodiments will further illustrate the present invention in conjunction with the above drawings.

Please refer to FIGS. 1 to 6 together. The present invention discloses an electrical connector 100 , which includes an insulating body 10 , a terminal module 20 installed in the insulating body 10 , and an inner casing accommodated in the insulating body 10 . 30 and an outer casing 40 covering the outside of the insulating body 10 . The electrical connector 100 is provided with a forwardly open mating cavity 101 into which the mating connector is inserted. The insulating housing 10 includes a body portion 12 , an additional portion 15 located at the lower side of the body portion 12 , and a frame portion 11 located at the front end of the body portion 12 . The width of the main body portion 12 is larger than the width of the attachment portion 15 . The width and height of the frame body portion 11 are both larger than the width and height of the body portion 12 . The body portion 12 includes a top wall 16 , a bottom wall 17 , two side walls 18 connecting the top wall 16 and the bottom wall 17 , a rear wall 19 and a tongue plate 102 extending forward from the rear wall 19 . The tongue plate 102 is located in the docking cavity 101 . The rear wall 19 is provided with a mounting groove 190 which is open to the rear. The terminal module 20 includes an insulating block 21 and a plurality of conductive terminals 22 fixed on the insulating block 21 . Insulation block 21 from back to front Installed in the installation slot 190 . The gap between the insulating block 21 and the installation groove 190 is filled with the sealing compound 50 , which ensures the good waterproof performance of the electrical connector 100 . The conductive terminal 22 includes a fixing portion 221 , an elastic contact portion 222 extending obliquely forward from the fixing portion 221 , and a welding portion 223 bent downward from the rear end of the fixing portion 221 . The insulating block 21 is injection-molded on the fixing portion 221 to avoid a gap between the insulating block 21 and the fixing portion 221 . The elastic contact portion 222 extends forward into the tongue plate 102 and is exposed on the surface of the tongue plate 102 . The additional portion 15 extends downward from the bottom wall 17 . The additional portion 15 includes opposite side portions 151 and a rear portion 154 connecting the two side portions 151 . The two side portions 151 and the rear portion 154 form a receiving space 156 that opens forward and downward. The rear portion 154 is provided with a terminal accommodating groove 155 extending vertically, and the welding portion 223 is accommodated in the terminal accommodating groove 155 .

The outer casing 40 includes a first top wall 41 , two first side walls 42 bent downward from two side edges of the first top wall 41 , and a first rear wall 46 bent downward from the rear edge of the first top wall 41 . . The outer casing 40 is provided with welding feet 45 extending downward from the lower edge of the first side wall 42 thereof. The side portion 151 is provided with a bending portion 152 which is bent outward and backward from the front end thereof, and a holding groove 153 is formed between the bending portion 152 and the side portion 151 . The welding pins 45 are held in the holding grooves 153 . The lower edge of the first side wall 42 is bent inward to form the holding portion 43 . The body portion 12 includes an extension portion 13 extending downward from the side wall 18 and beyond the bottom wall 17 . A retaining slot 14 is formed between the extension portion 13 and the attachment portion 15 , and the retaining portion 43 is retained in the retaining slot 14 . The main body portion 12 includes a protruding portion 121 protruding outward from the outer surface thereof. The protruding portion 121 extends backward from the frame portion 11 . The first side wall 42 is provided with a locking groove 44 matched with the protruding portion 121 . The retaining effect of the outer casing 40 and the insulating body 10 is better.

The inner casing 30 includes a second top wall 31 , a second bottom wall 32 and two second side walls 33 connecting the second top wall 31 and the second bottom wall 32 . The second side wall 33 includes a hook 34 which is bent backward and outward from the rear edge thereof. The hook 34 is retained on the outer casing 40 . The first rear wall 46 of the outer casing 40 is provided with abutting arms 47 extending downward from both ends thereof, and the abutting arms 47 abut against the hooks 34 . The outer casing 40 and the inner casing 30 are fastened to each other, so that the electrical connector 100 has a better grounding effect when it is mated with the mating connector.

The above is only an embodiment of the present invention, not all or the only embodiment. Any equivalent changes to the technical solution of the present invention that are taken by those of ordinary skill in the art by reading the description of the present invention are the rights of the present invention. requirements covered.

10: Insulation body

100: Electrical connector

101: Butt cavity

102: Tongue plate

30: Inner shell

40: Outer shell

Claims (10)

An electrical connector includes an insulating body and a terminal module mounted on the insulating body, the insulating body includes a rear wall and a tongue plate extending forward from the rear wall, the terminal module includes an insulating block and is fixed on the insulating block The plurality of conductive terminals, wherein the rear wall is provided with a rearwardly opening installation groove, the insulating block is installed in the installation groove from the back to the front, and each conductive terminal includes a contact portion extending into the tongue plate and exposed to the surface of the tongue plate , the gap between the insulating block and the rear wall is filled with sealing colloid, and the electrical connector further includes an outer casing covering the outside of the insulating body and an inner casing accommodated in the insulating body. The inner casing is provided with a hook formed by extending backward from both sides of the inner casing and bent outward, and the outer casing is provided with an abutment arm abutting against the hook. The electrical connector according to claim 1, wherein the conductive terminal comprises a fixing portion, an elastic contact portion extending obliquely forward from the fixing portion, and a welding portion bent downward from a rear end of the fixing portion, and the insulating block Injection molding on the fixing part. The electrical connector according to claim 1, wherein the outer casing comprises a first top wall, two first side walls bent downward from two side edges of the first top wall, and two first side walls bent downward from the rear edge of the first top wall The first rear wall is bent downward, the first rear wall is provided with abutting arms extending downward from its two ends, and the inner shell includes a second top wall, a second bottom wall and a second top wall and a second bottom wall. Two second side walls of the two bottom walls, the second side walls include hooks bent backwards and outwards from the rear edge thereof, and the hooks are clamped on the outer casing. The electrical connector according to claim 3, wherein the insulating body comprises a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, the insulating body further comprises an additional portion extending downward from the bottom wall, so The additional part includes opposite side parts and a rear part connecting the two side parts, and the two side parts and the rear part form a receiving space that opens forward and downward. The electrical connector according to claim 4, wherein the outer shell is provided with a welding leg extending downward from the lower edge of the first side wall, and the side portion is provided with a bent portion bent backward from the front end thereof, A holding groove is formed between the bending portion and the side portion, and the welding leg is held in the holding groove. The electrical connector according to claim 5, wherein the rear portion is provided with a terminal receiving groove extending vertically, and the conductive terminal is received in the terminal receiving groove. The electrical connector according to claim 4, wherein the insulating body comprises a main body part and a frame body part located at the front end of the main body part, the main body part is located on the upper side of the additional part, and the width and height of the frame body part are the same greater than the width and height of the body portion. The electrical connector of claim 7, wherein the width of the body portion is greater than the width of the additional portion. The electrical connector as claimed in claim 8, wherein the body portion includes an extension portion extending downward from the side wall and beyond the bottom wall, a locking groove is formed between the extension portion and the additional portion, and the first The lower edge of the side wall is bent inward to form a holding portion, and the holding portion is held in the holding groove. The electrical connector according to claim 7, wherein the body portion includes a protruding portion protruding outward from the outer side thereof, the protruding portion extends backward from the frame portion, and the first side wall is provided with a protruding portion A snap-fit slot that matches the outlet.

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