CN201594649U

CN201594649U - Waterproof electric connector

Info

Publication number: CN201594649U
Application number: CN200920265432XU
Authority: CN
Inventors: 江淑满
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2009-12-18
Filing date: 2009-12-18
Publication date: 2010-09-29
Anticipated expiration: 2019-12-18

Abstract

The utility model discloses a waterproof electric connector comprising a metal shell, an insulating body and a plurality of conductive terminals, the conductive terminals are fixedly contained in the insulating body; the metal shell coats the insulating body and the conductive terminals to form a matching chamber which is plugged with a butted connector; the metal shell comprises a metal internal shell and a metal external shell; the position of the metal internal shell, corresponding to the matching chamber, is provided with at least one clamping hole; the front end edge of the clamping hole is provided with a retaining block; the metal external shell at least coats the surface of the metal internal shell with the clamping hole and is contacted with the metal internal shell; furthermore, the metal external shell is provided with a retaining part with concave inside and convex outside at the position corresponding to the clamping hole so as to block the clamping hole; the retaining block is contained in the blocking part; and two sides of the metal shell extend to form a welding pin. The metal external shell at least coats the surface of the metal internal shell with the clamping hole, the clamping hole on a substrate is blocked, the water is prevented from flowing in a PCB of the electric connector from the clamping hole, and the normal work of the circuit is ensured.

Description

The water proof type electric connector

Technical field

The utility model relates to a kind of electronic device connector, relates in particular to a kind of water proof type electric connector.

Background technology

Existing electric connector comprises a metal shell, contains an insulating body in this metal shell, and this insulating body is provided with several conducting terminals.Metal shell by the metallic plate punching press, cut and bend and form, it has a substrate, the relative both side edges of substrate bends respectively and is extended with welding foot, offers the holding hole with the snap fit of banjo on the substrate.

Yet this structure allows water flow in the electric connector from the space between welding foot and the metal shell and this holding hole easily, causes the short circuit of circuit, and then damages electric connector.

The utility model content

The purpose of this utility model is to provide a kind of waterproof electrical connector at above-mentioned the deficiencies in the prior art.

To achieve these goals, the utility model provides a kind of water proof type electric connector, comprise metal shell, insulating body and several conducting terminals, described conducting terminal is accommodated and is fixed in the described insulating body, described metal shell coats described insulating body and conducting terminal, and the mating cavity of formation and butt connector grafting, described metal shell comprises metal inner casing and metal shell, described metal inner casing offers at least one holding hole in the position in corresponding matching chamber, the front-end edge of described holding hole is provided with block, described metal shell coats the surface that is provided with holding hole of described metal inner casing at least and is connected with described metal inner casing contact, and described metal shell is provided with the block portion of indent evagination to seal described holding hole at the described holding hole of correspondence place, described block is placed in the described block portion, and described metal shell both sides extend to form welding foot.

As mentioned above, the metal shell of the utility model water proof type electric connector coats the surface that is provided with holding hole of described metal inner casing at least, has covered holding hole, has prevented that water from flowing to the pcb board of electric connector from holding hole, guarantees the operate as normal of circuit; Metal shell is connected with described metal inner casing contact, serve as grounding function, replaced the effect of the welding foot of prior art metal shell, thus avoid water from the space between welding foot and the metal shell flow to electric connector pcb board on, further play waterproof action; And described metal shell is provided with the indent evagination at the described holding hole of correspondence place block portion to be sealing described holding hole, and described block is placed in the described block portion, makes metal shell tightr with cooperating of metal inner casing, and waterproof effect is better.

Description of drawings

Fig. 1 is the structural perspective of the utility model water proof type electric connector one angle.

Fig. 2 is the structural perspective of another angle of the utility model water proof type electric connector.

Fig. 3 is the three-dimensional exploded view of an angle of the utility model water proof type electric connector.

Fig. 4 is the three-dimensional exploded view of another angle of the utility model water proof type electric connector.

Fig. 5 is the three-dimensional exploded view of the utility model water proof type electric connector third angle degree.

Each description of reference numerals is as follows among the figure:

Water proof type electric connector 100 metal inner casings 10

Cover plate 11 first guidance parts 111

Bayonet socket 112 side plates 12

Second guidance part, 121 substrates 13

Holding hole 131 blocks 132

The 3rd guidance part 133 receiving spaces 14

Mating cavity 15 insulating bodies 20

Base portion 21 fixture blocks 211

Flange 212 draw-in grooves 213

Hyoplastron 214 terminal grooves 215

Installing hole 216 perforates 217

Embeded slot 22 conducting terminals 30

Contact site 31 terminal welding foots 32

Fixed part 33 metal shells 40

Shell bottom plate 41 block portions 42

Access Division 43 through holes 44

Sidewall 45 welding foots 46

Embodiment

Be the effect that describes technology contents of the present utility model, structural feature in detail, realized, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.

See also Fig. 1, the utility model water proof type electric connector 100 comprises a metal shell, insulating body 20 and several conducting terminals 30.Described metal shell comprises metal inner casing 10 and metal shell 40.

Consult Fig. 1 and Fig. 3 to Fig. 5, metal inner casing 10 has a roughly rectangular cover plate 11, and the front-end edge of cover plate 11 tilts to be bent with one first guidance part 111, and the rear portion of cover plate 11 has bayonet socket 112.Cover plate 11 relative both side edges bend and extend to form side plate 12 respectively downwards, and the front-end edge of side plate 12 is to outwards being bent to form one second guidance part 121.Biside plate 12 bends inwards respectively away from a lateral margin of substrate 13 and is extended with a substrate 13, offers two holding holes 131 on the substrate 13, substrate 13 the preceding peritreme of holding hole 131 outwards bending be extended with block 132.The front-end edge of substrate 13 outwards has been bent to form one the 3rd guidance part 133.Cover plate 11, biside plate 12 and two substrates 13 surround a receiving space 14.The 3rd guidance part 133, second guidance part 121 and first guidance part, 111 guiding butt connectors are inserted in the utility model water proof type electric connector 100.

Consult Fig. 3 to Fig. 5, insulating body 20 has one and roughly is rectangular-shaped base portion 21.The upper surface of base portion 21 offers fixture block 211.The bilateral symmetry of the rear end of base portion 21 is provided with and forms draw-in groove 213 between two flanges, 212, two flanges 212.Form embeded slot 22 between flange 212 and the base portion 21, the front end face of base portion 21 vertically protrudes out forward and forms a hyoplastron 214.Offer several terminal grooves 215 on the hyoplastron 214, and terminal groove 215 runs through base portion 21, and form installing hole 216, offer the perforate 217 that runs through this hyoplastron 214 up and down on the diapire of terminal groove 215 at fixture block 211 upper surfaces.

Consult Fig. 3 to Fig. 5, conducting terminal 30 is elongated, and it has a contact site 31, one terminal welding foots 32, is bent to form a fixed part 33 under contact site 31 terminal oblique.

Consult Fig. 3 to Fig. 5, metal shell 40 have with substrate 13 over against shell bottom plate 41, shell bottom plate 41 corresponding holding holes 131 places are provided with the block portion 42 of indent evagination, the rear portion bending of shell bottom plate 41 is extended with an Access Division 43, Access Division 43 offers through hole 44 with shell bottom plate 41 intersections, the two opposite sides edge of shell bottom plate 41 bends respectively and is extended with a sidewall 45, and sidewall 45 is outward extended with welding foot 46 away from the lateral margin of shell bottom plate 41.

During installation, earlier conducting terminal 30 is put in insulating body 20 from installing hole 216, its contact site 31 is fixed in the terminal groove 215 of hyoplastron 214, allow terminal welding foot 32 be exposed at insulating body 20 outward after; Then insulating body 20 is filled in the receiving space 14 from the rear portion of metal inner casing 10 together with conducting terminal 30, the rear end of substrate 13 is connected in the embeded slot 22, fixture block 211 and bayonet socket 112 sealing clampings, at this moment, form the mating cavity 15 of pegging graft between base portion 21, hyoplastron 214 and the metal inner casing 10 with butt connector; At last metal shell 40 is sheathed on metal inner casing 10 and the insulating body 20, the two substrates 13 of metal shell 40 clad metal inner casings 10 and biside plate 12 and with metal inner casing 10 welding one, the Access Division 43 at metal shell 40 rear portions is sticked on the draw-in groove 213.

As mentioned above, the substrate that is provided with holding hole 131 13 of the metal shell 40 clad metal inner casings 10 of the utility model water proof type electric connector 100, cover the holding hole 131 on the substrate 13, prevented that water from flowing to the pcb board of electric connector from holding hole 131, guaranteed the operate as normal of circuit; Metal shell 40 is connected with 10 contacts of metal inner casing, serve as grounding function, replaced the effect of the welding foot of prior art metal shell, thus avoid water from the space between welding foot and the metal shell flow to electric connector pcb board on, further play waterproof action; And metal shell 40 is provided with the block portion 42 of indent evagination to seal holding hole 131 at corresponding holding hole 131 places, block 132 is placed in the block portion 42, makes metal shell 40 tightr with cooperating of metal inner casing 10, and waterproof effect is better.

Claims

1. water proof type electric connector, comprise metal shell, insulating body and several conducting terminals, described conducting terminal is accommodated and is fixed in the described insulating body, described metal shell coats described insulating body and conducting terminal, and in front end formation mating cavity, it is characterized in that: described metal shell comprises metal inner casing and metal shell, described metal inner casing offers at least one holding hole in the position in corresponding matching chamber, the front-end edge of described holding hole is provided with block, described metal shell coats the surface that is provided with holding hole of described metal inner casing at least and is connected with described metal inner casing contact, and described metal shell is provided with the block portion of indent evagination to seal described holding hole at the described holding hole of correspondence place, described block is placed in the described block portion, and described metal shell both sides extend to form welding foot.

2. water proof type electric connector as claimed in claim 1 is characterized in that: the hyoplastron that described insulating body has base portion and protrudes out forward from the base portion front end face, and described conducting terminal one end is positioned on the described hyoplastron, and the other end stretches out described insulating body.

3. water proof type electric connector as claimed in claim 2, it is characterized in that: described metal inner casing has a cover plate, the two opposite sides edge of described cover plate bends respectively and is extended with side plate, biside plate bends inwards respectively away from a lateral margin of cover plate and is extended with a substrate, cover plate, biside plate and two substrates surround a receiving space, and described receiving space holds the base portion and the hyoplastron of described insulating body.

4. water proof type electric connector as claimed in claim 3 is characterized in that: described holding hole is opened in described substrate, and described metal shell coats the two substrates and the biside plate of described metal inner casing.

5. water proof type electric connector as claimed in claim 2 is characterized in that: the base portion rear end of described insulating body has outwards protruded out flange, forms embeded slot between flange and the base portion, and the rear end of described metal inner casing is embedded in this embeded slot and is insulated the body sealing.

6. water proof type electric connector as claimed in claim 5 is characterized in that: described flange is located at the both sides of described base portion rear end, forms draw-in groove between the described flange, and the bending of described metal shell rear portion is extended with an Access Division, and described Access Division is stuck in this draw-in groove.

7. water proof type electric connector as claimed in claim 1 is characterized in that: described metal shell and described metal inner casing welding one.