CN201725958U - Waterproof electric connector - Google Patents

Abstract

The utility model discloses a waterproof electric connector, it includes inside insulator, a plurality of conductive terminal, the metal inner shell, the gasket, outside insulator, metal shell and waterproof rubber circle, inside insulator intramode shaping is outside conductive terminal, the metal inner shell is gone up and is equipped with a plurality of cards and hold convex part and hole groove, the gasket includes the connection piece and the closed sheet that extends by the connection piece both ends, closed sheet middle part shaping has the closed shell, the closed shell covers on the hole groove, the closed sheet seals around the hole groove, outside insulator intramode shaping is in inside insulator, conductive terminal, outside metal inner shell and gasket, metal shell covers outside and the inside insulator rear portion of outside insulator, waterproof rubber circle cladding is in the outside front end of metal inner shell. The utility model discloses waterproof electric connector can improve waterproof performance.

Description

waterproof electrical connector

technical field

The utility model relates to an electric connector, in particular to a waterproof electric connector.

Background technique

Please refer to FIG. 7 and FIG. 8 , the conventional electrical connector 8 includes an insulating body 81 , a conductive terminal 82 fixed on the insulating body, and a metal shell 83 covering the insulating body. The insulating body 81 has a front wall 811 , a rear wall 812 , a top wall 813 , a bottom wall 814 and two side walls 815 . The front wall 811 of the insulating body 81 protrudes forward to form a plate-shaped holding portion 816 . The insulating body 81 defines a plurality of terminal grooves (not shown) extending backward from the front end of the holding portion 816 and penetrating through the insulating body 81 . The conductive terminals 82 are correspondingly fixed in the terminal slots of the insulating body 81 . A metal shell 83 covers the insulating body 81 to shield external electromagnetic interference.

However, the above existing electrical connector 8 has a gap between the insulating body 81 and the metal shell 83, so the waterproof performance is poor, and moisture easily penetrates into the electrical connector, thereby causing a short circuit and affecting the quality of the transmitted signal.

Utility model content

The purpose of this utility model is to provide a waterproof electrical connector which can improve the waterproof performance in view of the shortcomings of the above-mentioned prior art.

In order to achieve the above object, the waterproof electrical connector provided by the utility model includes an internal insulating body, a plurality of conductive terminals, a metal inner shell, a sealing sheet, an external insulating body, a metal shell and a waterproof rubber ring; the conductive terminal Placed in a mold, the inner insulating body is in-molded outside the conductive terminal; the metal inner shell is installed outside the inner insulating body, and the metal inner shell includes a top plate, a bottom plate and two side plates, and the top plate and the two side plates are respectively There is a clamping convex part for pressing, and two holes are punched in the middle of the top plate, and an outwardly protruding rectangular protrusion is set in the middle of the bottom plate; the sealing sheet includes a connecting piece and two ends of the connecting piece. The extended sealing piece has a closed shell formed in the middle of the closed piece, the sealing piece is attached to the top plate of the metal inner shell, and the closed shell is covered on the hole groove; the sealing piece further seals around the hole groove; the external insulating body includes An upper wall, a lower wall, and a vertical side wall, the outer insulating body is in-molded on the inner insulating body, a plurality of conductive terminals, the metal inner shell and the sealing sheet; the metal shell is covered on the outside of the outer insulating body and the rear of the inner insulating body ; The waterproof rubber ring covers the outer front end of the metal inner shell.

As mentioned above, the waterproof electrical connector provided by the utility model covers the hole groove on the top plate of the metal inner shell with the sealing sheet, and the external insulating body is in-molded outside the internal insulating body, the conductive terminal, the metal inner shell and the sealing sheet, and the outer insulating body is in-molded. The insulating body seals the gap between the sealing sheet and the metal inner shell and the internal insulating body and the metal inner shell, and the sealing function of the waterproof rubber ring seals, so as to meet the waterproof requirement.

Description of drawings

FIG. 1 is a perspective view of the waterproof electrical connector of the present invention.

FIG. 2 is an exploded perspective view of the waterproof electrical connector shown in FIG. 1 .

Fig. 3 is a right view of the waterproof electrical connector shown in Fig. 1 .

FIG. 4 is a top view of the waterproof electrical connector shown in FIG. 1 .

FIG. 5 is a rear view of the inner insulating body of the waterproof electrical connector shown in FIG. 1 .

FIG. 6 is a rear view of the waterproof electrical connector shown in FIG. 1 .

FIG. 7 is a perspective view of a conventional electrical connector.

FIG. 8 is an exploded perspective view of the electrical connector shown in FIG. 7 .

The reference signs in the figure are explained as follows:

(current technology)

Electrical connector 8 81 insulation body

Front wall 811 Rear wall 812

top wall 813 bottom wall 814

side wall 815 holding part 816

Conductive terminal 82 metal shell 83

(this utility model)

Waterproof electrical connector 1

Front Wall 101 Back Wall 102

top wall 103 bottom wall 104

Side wall 105 Storage tank 106

Holder 107 Holder 110

Terminal slot 111 Conductive terminal 20

Metal Inner Shell 30 Top Plate 301

Bottom Plate 302 Side Plate 303

Hold convex part 304 hole slot 305

Holder slot 306 bulge 307

Accommodating space 310 sealing sheet 40

Connecting piece 401 Closing piece 402

Enclosure 403 External insulating body 50

Upper Wall 501 Lower Wall 502

Vertical side wall 503 Slotted 504

Card Slot 505 Card Hole 506

Metal Case 60 Top Cover 601

Back Cover 602 Side Cover 603

Solder foot 604 locating hole 605

Waterproof rubber ring 70

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 , the utility model waterproof electrical connector 1 includes an inner insulating body 10 , a conductive terminal 20 , a metal inner shell 30 , a sealing sheet 40 , an outer insulating body 50 , a metal shell 60 and a waterproof rubber ring 70 .

Please refer to FIG. 2 and FIG. 5 , the inner insulating body 10 is an integrally formed component, which includes a front wall 101 , a rear wall 102 , a top wall 103 , a bottom wall 104 and two side walls 105 . A plate-shaped holding portion 110 protrudes forward from the front wall 101 of the inner insulating body 10 . A plurality of terminal grooves 111 penetrating through the inner insulating body 10 are defined rearwardly from a front end of the holding portion 110 . A rear portion of the top wall 103 of the inner insulating body 10 defines a receiving groove 106 downwards. The middle part of the top wall 103 , the middle part of the bottom wall 104 and the middle part of the two sidewalls 105 of the internal insulating body 10 respectively protrude from the locking part 107 .

The conductive terminal 20 is placed in a mold, and the inner insulating body 10 is in-molded outside the conductive terminal 20 .

Please refer to FIG. 2 , the metal inner shell 30 is installed outside the inner insulating body 10 , the metal inner shell 30 includes a top plate 301 , a bottom plate 302 and two side plates 303 , and the above plates enclose an accommodating space 310 . The top plate 301 and the two side plates 303 are pressed with a locking protrusion 304 . The middle part of the top plate 301 is punched with two rectangular holes 305 , and the rear parts of the top plate 301 , the bottom plate 302 and the two side plates 303 are punched with a plurality of locking grooves 306 . The middle part of the bottom plate 302 is pressed outwards with an outwardly protruding rectangular protrusion 307 . The locking portion 107 of the inner insulating body 10 is locked into the locking groove 306 , thereby locking the inner insulating body 10 in the accommodating space 310 .

Please refer to FIG. 2 and FIG. 4 , the sealing piece 40 includes a connecting piece 401 and closing pieces 402 extending from both ends of the connecting piece 401 , and a sealing shell 403 is formed in the middle of the closing piece 402 . The connecting piece 401 of the sealing piece 40 is clamped between several locking protrusions 304 on the top plate 301 of the metal inner shell 30 , the closing shell 403 covers the hole 305 , and the sealing piece 402 is further sealed around the hole 305 .

Please refer to FIG. 2, the outer insulating body 50 is in-molded outside the inner insulating body 10, a plurality of conductive terminals 20, the metal inner shell 30 and the sealing sheet 40, and the outer insulating body 50 includes an upper wall 501, a lower wall 502 and a vertical side wall 503 . Two locking holes 506 are formed on the upper wall 501 corresponding to the closing shell 403 . A rectangular slot 504 is formed on the lower wall 502 corresponding to the protrusion 307 . When the outer insulating body 50 covers the metal inner shell 30 , the rectangular protrusion 307 of the bottom plate 302 is placed in the rectangular slot 504 . A card slot 505 extending backward is formed in the middle of the vertical side wall 503 .

Referring to FIG. 2 again, the metal casing 60 includes a top cover 601 , a rear cover 602 bent and extended from the rear side edge of the top cover 601 , and side covers 603 bent and extended from both sides of the top cover 601 . Solder pins 604 extend downward from the middle of the two side covers 603 , and a positioning hole 605 is opened in the middle of the two side covers 603 . When the metal shell 60 wraps the outer insulating body 50, the top cover 601 covers the rear of the outer insulating body 50, the rear cover 602 is stuck in the accommodating groove 106 of the inner insulating body 10, and the two side covers 603 are covered on the outside. Outside the vertical side wall 503 of the insulating body 50 , the locking protrusion 304 of the metal inner shell 30 passes through the locking groove 505 and is locked in the positioning hole 605 of the metal outer shell 60 .

Please refer to FIG. 2 and FIG. 3 , the waterproof rubber ring 70 covers the outer front end of the metal inner shell 30 , and the thickness of the waterproof rubber ring 70 is greater than that of the outer insulating body 50 .

When assembling the waterproof electrical connector 1 of the present utility model, firstly, the conductive terminal 20 is placed in a mould, and the internal insulating body 10 is in-molded outside the conductive terminal 20; then the metal inner shell 30 is placed outside the internal insulating body 10; then Cover the two holes 305 of the metal inner shell 30 with the sealing sheet 40; then put the assembled inner insulating body 10, conductive terminals 20, metal inner shell 30 and sealing sheet 40 into a mold, and mold the outer insulating body 50 Formed outside the inner insulating body 10, conductive terminals 20, metal inner shell 30 and sealing sheet 40, after forming, the two closed shells 403 protrude from the upper wall 501 of the outer insulating body 50, and the protrusions 307 protrude from the outer wall of the outer insulating body 50. Outside the lower wall 502, the holding protrusions 304 on the side plate 303 protrude from the vertical side wall 503 of the outer insulating body 50, wherein a plurality of holding protrusions 304 are formed in the outer insulating body 50 to fix the outer insulating body 50 , the gap between the clamping part 107 and the clamping groove 306 is closed by the external insulating body 50; secondly, the metal shell 60 is covered on the outside of the external insulating body 50 and the rear part of the internal insulating body 10; finally, the waterproof rubber ring 70 is covered at the front end of the metal inner shell 30 .

To sum up, the waterproof electrical connector 1 of the present invention uses the sealing sheet 40 to cover and close the hole 305 of the metal inner shell 30, and then molds the outer insulating body 50 outside the metal inner shell 30, and the outer insulating body 50 Seal the gaps between the sealing sheet 40 and the metal inner shell 30 and between the internal insulating body 10 and the metal inner shell 30 , and seal the accommodating space 310 with the waterproof rubber ring 70 , so as to meet the waterproof requirement.

Claims (5)

1. A waterproof electrical connector, characterized in that: it includes an internal insulating body, several conductive terminals, a metal inner shell, a sealing sheet, an external insulating body, a metal shell and a waterproof rubber ring; the conductive terminals are placed In a mould, the inner insulating body is in-molded outside the conductive terminal; the metal inner shell is installed outside the inner insulating body, and the metal inner shell includes a top plate, a bottom plate and two side plates, and the top plate and the two side plates are respectively pressed There is a holding protrusion, and two holes are punched in the middle of the top plate, and a rectangular protrusion protruding outward is provided in the middle of the bottom plate; the sealing piece includes a connecting piece and extending from both ends of the connecting piece. The sealing piece, the middle part of the sealing piece is formed with a closed shell, the sealing piece is attached to the top plate of the metal inner shell, and the closed shell is covered on the hole groove; the sealing piece further seals around the hole groove; the outer insulating body includes an upper Wall, lower wall and vertical side wall, the outer insulating body is in-molded outside the inner insulating body, a number of conductive terminals, the metal inner shell and the sealing sheet; the metal shell is covered on the outside of the outer insulating body and the rear of the inner insulating body; waterproof The rubber ring covers the outer front end of the metal inner shell. 2. The waterproof electrical connector according to claim 1, characterized in that: the middle part of the upper wall of the external insulating body is formed with two clamping holes corresponding to the closed shell, and the middle part of the lower wall is formed with a slot corresponding to the protrusion. The middle part of the side wall is formed with a card slot extending backward. After the outer insulating body is formed, the two closed shells protrude from the upper wall of the outer insulating body, and the protrusions protrude from the lower wall of the outer insulating body. The holding protrusion protrudes from the vertical side wall of the outer insulating body, wherein a plurality of holding protrusions are formed in the outer insulating body to fix the outer insulating body. 3 . The waterproof electrical connector according to claim 1 , wherein the connecting piece of the sealing piece is clamped between a plurality of clamping protrusions on the top plate of the metal inner shell. 4 . 4. The waterproof electrical connector according to claim 1, characterized in that: the middle part of the top wall, the middle part of the bottom wall and the middle part of the two side walls of the internal insulating body respectively protrude from several clamping parts; the metal inner shell The top plate, the bottom plate, and the rear parts of the two side plates are all punched with a number of clamping grooves, the clamping parts are clamped into the clamping grooves, and the gaps between the clamping parts and the clamping grooves are closed by the external insulating body. 5. The waterproof electrical connector according to claim 1, wherein the thickness of the waterproof rubber ring is greater than the thickness of the outer insulating body.

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