TWI738865B - Electrical connector - Google Patents

Abstract

An electrical connector includes an insulative housing, two arrays of terminals retained in the housing, and a shielding shell attached to the housing. The shielding shell has an outer shell and a sealer retained in front of the outer shell. The electrical connector has a glue wall located at a rear end thereof. The sealer has an end close to the shielding shell and resisted against by an inner wall of the outer shell. An outer wall of the shielding shell is resisted against by an inner wall of the outer wall.

Description

Electrical connector

The invention relates to an electrical connector, in particular to a positive and negative plug-in electrical connector.

With reference to the new patent No. CN204167590 in Mainland China, a waterproof socket connector that can be inserted in the front and back is disclosed. The electrical connector includes an insulating body, two rows of conductive terminals arranged on the insulating body, and a metal inner shell sleeved on the insulating body. The shielding shell is covered with an insulating shell. The outer wall ring of the front port of the insulating shell is provided with a waterproof ring. The inner wall of the waterproof ring is smoothly attached to the outside of the insulating shell, and the outer wall is convexly provided with a plurality of annular ribs.

However, there is a small gap between the above-mentioned insulating shell and the metal inner shell. During the glue dispensing process at the end of the electrical connector, due to the capillary phenomenon, the glue flows along the gap to the mating interface and accumulates during dispensing, which affects the interface end. Waterproof gasket assembly.

Therefore, in view of the above problems, it is necessary to provide a new electrical connector to solve the above problems.

The objective of the present invention is to provide an electrical connector that can achieve effective waterproofing.

In order to solve the above technical problems, the present invention provides an electrical connector including an insulating body, two rows of conductive terminals respectively held on the insulating body, and a shielding shell covering the insulating body. There is a shell and a waterproof gasket sleeved in front of the insulating shell, and the electrical connection The rear end of the connector is glued to form a glue wall, one end of the waterproof gasket close to the shielding shell is embedded against the inner wall of the shell, and the outer wall of the shielding shell and the inner wall of the shell are attached to each other In cooperation, at least one of the inner wall of the waterproof gasket close to the insulating shell or the outer wall of the shielding shell and the inner wall of the shell is recessed with a relief groove, so that it is separated from the waterproof gasket by a certain distance .

Further, the portion of the waterproof gasket embedded and held against the inner wall of the housing has an outer edge that is attached to and abuts against the inner wall of the housing and an inner edge that is attached to and abuts against the outer wall of the shielding shell. A relief groove is formed between the waterproof gasket and the inner wall of the housing and the shielding shell.

Further, the relief groove and the gap between the shielding shell and the shell penetrate through to accommodate the waterproof material that flows down from between the shielding shell and the insulating shell during glue dispensing.

Further, the housing is an insulating housing, and the insulating housing includes a main body portion, an outer wall of the docking port of the main body portion is provided with a ring portion, and the waterproof gasket is held in the ring portion.

Further, the docking port of the insulating housing is provided with a front end wall that forms a ring-shaped wall in the vertical direction, and the ring-shaped portion is provided outside the front end wall.

Further, the front surface of the front end wall is smoothly arranged.

Further, both sides of the ring-shaped portion are provided with through holes that pass through the front, rear, left, and right ends, and both sides of the waterproof gasket are provided with protrusions extending outward, and the protrusions are engaged in the through holes , The front end is clamped in front of the through hole.

Further, both sides of the waterproof gasket are provided with abutting portions located at the rear end of the protruding portion and extending rearwardly formed, and the abutting portions are clamped behind the through hole.

Further, the insulating body includes a first insulating body and a second insulating body respectively holding the two rows of conductive terminals, and the electrical connector further includes a reinforcement provided between the first insulating body and the second insulating body. The rear end of the reinforcing member is provided with a fixing part and a perforation provided on the fixing part, the rear end of the first insulating body is provided with a through hole, and the rear end of the second insulating body is provided with a through hole. The perforation accommodates the buckling part that is locked in the through hole.

Further, the rear end of the shielding shell is provided with a third fixed foot that is bent and extended downward, the rear end of the third fixed foot is provided with a stepped portion, and the fixed portion of the reinforcing member is attached to the first On the lower surface of the rear end of an insulating body, the step part abuts on the fixing part.

Compared with the prior art, the present invention has at least the following beneficial effects: the electrical connector of the present invention is recessed with a relief groove at the inner rear end of the waterproof gasket, and there is a small gap between the insulating shell and the shielding shell, so that the electrical connection During the glue dispensing process at the end of the device, due to the capillary phenomenon, the glue flows along the gap to the relief groove of the opposite interface during dispensing, so as to ensure that the waterproof gasket does not interfere with the overflowing glue during assembly and avoid assembly displacement. The sealing effect is not good.

100, 100', 100": electrical connector

1: Insulating body

11: The first insulating body

111: First Pedestal

112: First tongue

113: The first connection part

114: Platform Department

115: opening

116: The first bump

117: Prominence

118: Through hole

119: Abutment Department

12: The second insulating body

121: second base

122: second tongue

123: The second connecting part

124: Side

125: Right Angle

126: buckle

127: second bump

128: buckle part

13: The third insulating body

131: Third Pedestal

132: Third tongue

133: Hollow

134: Holding Groove

2: conductive terminal

21: The first terminal

211: First Contact

212: The first welding part

22: second terminal

221: second contact

222: The second welding part

3: Reinforcement

30: Through hole

31: The first support part

32: The second support part

33: The third connecting part

34: Solder foot

35: fixed part

36: Piercing

4: glue wall

5: Shading the shell

51: top wall

52: bottom wall

521: first fixed foot

53: side wall

531: second fixed foot

54: Extension Wall

541: third fixed foot

542: step

6: Insulating shell

60: Receptacle

61: main body

611: front wall

62: positioning arm

63: Ring

631: Through Hole

7: Waterproof gasket

70, 64', 55": give way

71: bulge

72: Resisting Department

73: Outer Edge

74: inner edge

75: convex edge

The first figure is a three-dimensional assembly diagram of the first embodiment of the electrical connector of the present invention.

The second figure is a three-dimensional assembly view of the first figure viewed from another direction.

The third figure is a partial three-dimensional exploded view of the first embodiment of the electrical connector of the present invention with the waterproof gasket taken out.

The fourth figure is a partial three-dimensional exploded view of the third figure from another direction.

The fifth figure is a further partial exploded view of the third figure.

Figure 6 is a partially exploded perspective view of Figure 5 when viewed from another direction.

The seventh figure is a partial three-dimensional exploded view of the insulating body and the conductive terminal of the first embodiment of the electrical connector of the present invention.

The eighth figure is a partial three-dimensional exploded view of the seventh figure when viewed from another direction.

The ninth figure is a cross-sectional view of the first embodiment of the electrical connector of the present invention along the line IX-IX of the first figure.

Figure 10 is a cross-sectional view of the second embodiment of the electrical connector of the present invention.

Figure eleven is a cross-sectional view of the third embodiment of the electrical connector of the present invention.

Hereinafter, the first embodiment of the electrical connector 100 of the present invention will be described in conjunction with the first to the ninth figures. The port where the electrical connector 100 and the plug connector are inserted is defined as a plug-in end. The butting direction, the transverse direction and the vertical direction perpendicular to the butting direction and the transverse direction are defined, and the plane where the butting direction and the transverse direction are located constitutes a horizontal plane.

Please refer to the first to eighth figures, the electrical connector 100 of the present invention includes an insulating body 1, a conductive terminal held in the insulating body 1, a reinforcement member 3 installed in the insulating body 1, and a molded body in the insulating body 1. The glue wall 4 at the rear end, the shielding shell 5 covering the insulating body 1, the insulating shell 6 sleeved on the shielding shell 5 and the waterproof gasket 7 sleeved on the ports of the insulating shell 6.

Referring to FIGS. 5 to 8, the insulating body 1 includes a first insulating body 11, a second insulating body 12 and a third insulating body 13 that are integrally formed. The first insulating body 11 includes a first base 111 and a first tongue 112 extending forward from the first base 111. The first base 111 includes a platform portion 114 extending horizontally and a first connecting portion 113 extending obliquely forward from the platform portion 114 and connected to the first tongue 112. The platform portion 114 is provided with an opening 115 to expose a part of the conductive terminal 2. The upper surface of the first tongue 112 is convexly provided with a plurality of first protrusions 116, and the front end of the lower surface thereof is convexly provided with a plurality of protrusions 117. The first base 111 is provided with through holes 118 located on both sides and penetrating up and down, and abutting portions 119 located on the edges of both sides. The second insulating body 12 includes a second base 121 and a second tongue 122 extending forward from the second base 121. The second base 121 has a second connecting portion 123 formed obliquely and connected to the second tongue 122. The second connecting portion 123 includes a pair of side portions 124 arranged on both sides and clamping the first connecting portion 113 of the first insulating body 11 and a pair of right angle portions 125 arranged on the top of the side portion 124. Referring to the fifth figure, the right-angled portion 125 is engaged with the two corners of the front end of the platform portion 114. The front end of the second tongue plate 122 is provided with a buckle portion 126 for buckling with the protrusion 117, and a plurality of second protrusions 127 are provided on the lower surface of the second tongue plate 122. The rear end of the second base 121 is provided with a buckling portion 128 corresponding to the through hole 118. The third insulating body 13 includes a third base 131 and a third tongue 132 extending forward from the third base 131. The third tongue plate 132 has a hollow portion 133 for receiving the first tongue plate 112 and the second tongue plate 122 and holding grooves 134 on both sides. The first base 111, the second base 121, and the third base 131 may be collectively referred to as a base. The first tongue plate 112, the second tongue plate 122, and the third tongue plate 132 may be collectively referred to as tongue plates.

The conductive terminal 2 includes a first terminal 21 fixed on the first insulating body 11 and a second terminal 22 fixed on the second insulating body 12. The first terminal 21 includes a first contact portion 211 exposing the upper surface of the first tongue 112 and a first welding portion 212 extending outward from the bottom of the first base 111 of the insulating body 1. The second terminal 22 includes a second contact portion 221 exposing the lower surface of the second tongue 122 and a second welding portion 222 extending outside the second insulating body 12. The first terminal 21 and the second terminal 22 located on both sides are respectively exposed from the side edge of the tongue plate.

The first terminal 21 and the second terminal 22 are symmetrically distributed along a central axis extending forward and backward, and respectively include four power terminals protruding forward and eight terminals located later. The two power terminals on both sides are used for grounding, and the two power terminals in the middle are used to provide power. The eight terminals located later include four high-speed differential terminals on both sides of the row, two low-speed differential terminals in the center, and two control terminals on both sides of a pair of differential terminals. The first contact portion 211 of the first terminal 21 and the second contact portion 221 of the second terminal 22 are arranged up and down, while the first welding portion 212 of the first terminal 21 and the second welding portion 222 of the second terminal 22 They are located in the same plane. Therefore, regardless of whether the mating connector is inserted forward or backward, the correct and aligned electrical connection of the first contact portion 211 and the second contact portion 221 of the electrical connector 100 with the corresponding contact portion of the mating connector can be ensured.

Referring to the seventh and eighth figures, the reinforcing member 3 includes a first supporting portion 31 held between the first tongue 112 of the first insulating body 11 and the second tongue 122 of the second insulating body 12 , A second supporting portion 32 provided between the first base 111 and the second base 121 and a third connecting portion 33 connecting the first supporting portion 31 and the second supporting portion 32. A through hole 30 is opened in the middle of the third connecting portion 33 to accommodate the first insulating body 11 and the second insulating body 12 in contact with each other. The rear end of the second support portion 32 is downward A pair of solder feet 34 are formed by bending and extending. A fixing portion 35 clamped between the first base 111 and the second base 121 is provided behind the solder foot 34. As shown in the fourth figure, the fixing portion 35 is provided with a through hole 36 to accommodate the buckling portion 128 of the insulating body 1 passing through and being received in the through hole 118, so that the first insulating body 11, The second insulating body 12 and the reinforcing member 3 are stably held.

Referring to the fourth to ninth figures, the glue wall 4 is formed by pouring glue on the insulating body 1 and then wrapping the conductive terminal 2 to expose the part of the opening 115, so as to fill the gap of the insulating body 1, and then The gap between the third base 131 of the insulating body 1 and the shielding shell 5 is sealed.

As shown in the first to sixth figures, the mating frame opening of the shielding shell 5 is a rounded rectangle, and includes a top wall 51 and a bottom wall 52 arranged opposite to each other, and a connecting wall 51 and a bottom wall 52. On the side wall 53. The top wall 51 extends backward to form an extension wall 54. The rear end of the bottom wall 52 is provided with a first fixing leg 521 that is bent upward and extends. The pair of side walls 53 are provided with second fixing feet 531 extending inwardly. The first fixing leg 521 and the extension wall 54 are higher than the top wall 51 and the extension wall 54 is provided with a third fixing leg 541 formed by bending downwards and extending on both sides. The third fixing leg 541 extends along the mating direction and clamps both sides of the first base 111 of the first insulating body 11 in the transverse direction. The rear end of the third fixed leg is provided with a step portion 542. Referring to the second figure, the fixing portion 35 of the reinforcing member 3 is attached to the lower surface of the first base 111 of the insulating body 1, and the step portion 542 abuts on the fixing portion 35. As shown in the three figures, the abutting portion 119 of the insulating body 1 abuts against the rear end of the extension wall 54 to strengthen and fix the shielding shell 5 and the reinforcement 3 and the insulating body 1.

Referring to FIGS. 1 to 9, the insulating housing 6 includes a cylindrical main body portion 61 and a pair of positioning arms 62 formed horizontally extending outward from two sides of the main body portion 61. The insertion port of the main body portion 61 has a front end wall 611 and a ring portion 63. The ring portion 63 is larger than the port of the main body portion 61 and forms a receiving portion 60 with the front end wall 611 of the main body portion 61. Both sides of the ring portion 63 are provided with through holes 631 that pass through the front, rear, left, and right ends. The through hole penetrates the receiving portion 60. The rear port of the main body 61 is a rectangular frame mouth, So that the second base 121 of the insulating body 1 is clamped inside the main body 61, and the rear port of the main body 61 is completely sealed by the glue wall 4 to fill the insulating body 1 and the insulating shell 6 The gap between.

The waterproof gasket 7 has a circular ring shape, and the outer surface is convexly provided with a plurality of ridges to interfere with the mating connector to enhance the waterproof effect. Both sides of the waterproof gasket 7 are provided with protrusions 71 extending outward and a resisting portion 72 provided at the rear end of the protrusion 71 and extending backward. The waterproof gasket 7 is sleeved on the insulating housing 6, and is accommodated in the receiving portion 60 of the insulating housing 6, so that the waterproof gasket 7 accommodated in the receiving portion 60 has a fit and abutting against the The outer edge 73 of the inner wall of the insulating housing 6 and the inner edge 74 that abuts against the outer wall of the shielding shell 5, in the present application, the waterproof gasket 7 is formed between the outer edge 73 and the inner edge 74 There is a rib 75 protruding into the receiving portion 60 and close to the front end wall 611. Referring to the first and second figures, after the waterproof gasket 7 is sleeved on the insulating housing 6, the protruding portion 71 is clamped in the through hole 631, and the front end is clamped in the through hole 631. In front of the hole 631, the resisting portion 72 is clamped behind the through hole, so that the waterproof gasket 7 is stably installed on the insulating housing 6. Referring to the fourth and ninth figures, the inner rear end of the waterproof gasket 7 is recessed with a ring of relief grooves 70. There is a small gap between the insulating shell 6 and the shielding shell 5. During the dispensing process of the end of the electrical connector 100, due to the capillary phenomenon, the glue flows along the gap to the relief groove 70 at the mating interface during the dispensing process. In order to ensure that the waterproof gasket 7 does not interfere with the overflowing glue when assembling, it is avoided that the assembly shift and the sealing effect is not good. In other embodiments, the insulating housing 6 can also be replaced with a metal housing, and collectively referred to as a housing.

Referring to the tenth figure, in the second embodiment, the electrical connector 100' is basically the same as the electrical connector 100, the waterproof gasket 7 no longer gives way, and the main body 61 is recessed. The relief slot 64' in front of the front end wall 611. One side of the notch of the relief groove 64' faces the outer surface of the shielding shell 5, and the other side faces the waterproof gasket 7. There is a small gap between the insulating shell 6 and the shielding shell 5. During the glue dispensing process at the end of the electrical connector 100, due to the capillary phenomenon, the glue flows along the gap to the relief groove 64' at the mating interface during the glue dispensing. In this way, it is ensured that the waterproof gasket 7 does not interfere with the overflowing glue when assembling, so as to avoid the assembly shift and the sealing effect is not good.

As shown in Figure 11, in the third embodiment, the electrical connector 100" is basically the same as the electrical connector 100, and the insulating housing 6 is not provided with a relief groove but is provided on the outer wall of the shielding shell 5. The above-mentioned effect can also be achieved by setting a plurality of give way slots 55" on the top. In the process of tail dispensing, due to the capillary phenomenon, the glue flows along the gap to the relief groove 55" at the end of the interface during dispensing, so as to ensure that the waterproof gasket 7'does not interfere with the overflowing glue during assembly and avoid assembly The sealing effect is not good due to displacement.

The foregoing descriptions are only part of the embodiments of the present invention, not all of them. Any equivalent changes made to the technical solutions of the present invention by those of ordinary skill in the art by reading the description of the present invention are covered by the claims of the present invention. .

100: electrical connector

1: Insulating body

21: The first terminal

22: second terminal

3: Reinforcement

4: glue wall

5: Shading the shell

6: Insulating shell

611: front wall

7: Waterproof gasket

70: give way slot

73: Outer Edge

74: inner edge

75: convex edge

Claims (10)

An electrical connector includes an insulating body, two rows of conductive terminals respectively held on the insulating body, and a shielding shell covering the insulating body. The shielding shell is provided with a shell and sleeved on the insulating body. The waterproof gasket in front of the housing, the rear end of the electrical connector is glued to form a glue wall, and it is characterized in that: the waterproof gasket is embedded and resisted on the inner wall of the housing near one end of the shielding shell. The outer wall of the housing and the inner wall of the housing are in close fit with each other, and the inner wall of the waterproof gasket is close to the side of the insulating housing or at least one of the outer wall of the shielding housing and the inner wall of the housing is recessed There is a relief groove to make it spaced a certain distance from the waterproof gasket. The electrical connector according to claim 1, wherein the portion of the waterproof gasket that is embedded and held against the inner wall of the housing has an outer edge that abuts against the inner wall of the housing and abuts against the shield On the inner edge of the outer wall of the housing, the relief groove is formed between the waterproof gasket and the inner wall of the housing and the shielding housing. The electrical connector according to claim 1, wherein the clearance groove and the gap between the shielding housing and the housing penetrate through to accommodate the flow of glue from between the shielding housing and the insulating housing when dispensing The waterproof material. The electrical connector according to claim 1, wherein the housing is an insulating housing, the insulating housing includes a main body, and an outer wall of the mating port of the main body is provided with a ring portion, and the waterproof gasket abuts against the Inside the ring. The electrical connector according to claim 4, wherein a front end wall that forms a ring-shaped wall in the up-down direction is provided at the docking port of the insulating housing, and the ring-shaped portion is provided outside the front end wall. The electrical connector according to claim 5, wherein the front surface of the front end wall is smoothly arranged. The electrical connector according to claim 4, wherein both sides of the ring portion are provided with front, rear, left, and right There is a through hole, and both sides of the waterproof gasket are provided with protrusions extending outward, the protrusions are clamped in the through holes, and the front ends are clamped in front of the through holes. The electrical connector according to claim 7, wherein both sides of the waterproof gasket are provided with abutting portions located at the rear end of the protruding portion and extending backward, and the abutting portion is clamped behind the through hole . The electrical connector according to claim 1, wherein the insulating body includes a first insulating body and a second insulating body respectively holding the two rows of conductive terminals, and the electrical connector further includes The reinforcing member between the main body and the second insulating body, the rear end of the reinforcing member is provided with a fixing part and a through hole provided on the fixing part, the rear end of the first insulating body is provided with a through hole, and the second insulating body The rear end of the main body is provided with a buckling part passing through the through hole and receiving and engaging in the through hole. The electrical connector according to claim 9, wherein the rear end of the shielding shell is provided with a third fixing leg formed by bending downward, the rear end of the third fixing leg is provided with a step portion, and the reinforcing member The fixing portion is attached to the lower surface of the rear end of the first insulating body, and the step portion abuts on the fixing portion.

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