CN207542475U - Electric connector - Google Patents
Electric connector Download PDFInfo
- Publication number
- CN207542475U CN207542475U CN201721625285.3U CN201721625285U CN207542475U CN 207542475 U CN207542475 U CN 207542475U CN 201721625285 U CN201721625285 U CN 201721625285U CN 207542475 U CN207542475 U CN 207542475U
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- plastic
- electric connector
- shell
- plastic shell
- water proof
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Abstract
The utility model discloses a kind of electric connector, including an insulating body;Multiple terminals, in insulating body;Metal-back coats insulating body in one;One cable is electrically connected positioned at insulating body rear end and with multiple terminals；One outer metal housing is arranged and is fixed on interior metal-back rear end and cable；One plastic body is overmolded in outside outer metal housing and its partial melting plastic cement is packed into outer metal housing, cools down aftershaping, and the outside wall surface of plastic body is equipped with annular protrusion to close the gap of the plastic body and the plastic shell, aqueous vapor is avoided to enter；One plastic shell is arranged plastic body, plastic shell is equipped with water proof ring, water proof ring is integrally formed with the plastic shell, structure is more firm, avoid because of multiple plug so that water proof ring displacement, when electric connector enters butt connector cavity, water proof ring shell closing plastic shell dock chamber with butt connector between gap, aqueous vapor is avoided to enter internal circuit, improves the waterproof effect of electric connector.
Description
Technical field
The utility model is related to a kind of electric connectors, refer in particular to a kind of waterproof electrical connector.
Background technology
A kind of existing electric connector, including an outer metal housing, metal-back in the outer metal housing cladding one, the interior gold
Belong to shell and protrude out the outer metal housing forward, the interior metal-back has been installed with an insulating body, and plurality of terminal accommodating is in institute
Insulating body is stated, a plastic body is overmolded in the outer end of the outer metal housing and its partial melting plastic cement is packed into outside described
It in metal-back, is molded after cooling, a plastic shell is arranged the plastic body, and outside wall surface is assembled with a water proof ring, when described
When electric connector enters the docking intracavitary docking of butt connector, the water proof ring closes the plastic shell and described in succession
The gap between the docking chamber of device is connect, water gas to be prevented to be externally entering internal circuit.
However, since the water proof ring and the plastic shell are fixed with assembling mode, it is described to be electrically connected after permanent use
It connects device and squeezes the water proof ring for a long time in multiple swapping process, rear end position of the water proof ring to the plastic shell can be caused
It moves, therefore when the electric connector is docked with butt connector, the water proof ring, which loses, closes the plastic shell and described right
The effect in the gap between the docking chamber of connecting connector, aqueous vapor easily from the electric connector with and pair with the butt connector
It connects the gap between chamber and enters internal circuit, damage internal electronic element.Also, between the plastic body and the plastic shell
Composition surface on there are gap, water enters likely via gap herein in the electric connector, damages internal circuit.
Therefore, it is necessary to a kind of new electric connector is designed, to overcome the above problem.
Invention content
For background technology problem encountered, the purpose of this utility model is to provide one kind to have good waterproofing effect
Electric connector.
To achieve the above object, the utility model uses following technical scheme：
A kind of electric connector, to coordinate a butt connector, which is characterized in that including：One insulating body;Multiple ends
Son, set on the insulating body;Metal-back is shielded in the insulating body in one, and the interior metal-back has a front cover shell and phase
A rear casing widened to the front cover shell;One cable electrically connects positioned at the insulating body rear end and with multiple terminals
It connects；One outer metal housing is arranged and is fixed on the rear casing and the cable；One plastic body is overmolded in the outer metal
Shell is outer and partial melting plastic cement is packed into the outer metal housing, and the outside wall surface of the plastic body is equipped with multiple annular protrusions；
One plastic shell, is arranged the plastic body, and the plastic shell outer surface is equipped with a water proof ring, the water proof ring and the plastic cement
Shell is integrally formed.
Further, the cable passes through the region that the water proof ring surrounds.
Further, the outside wall surface of the plastic body is recessed with an annular coating area, and full-filling has marine glue, the marine glue
To close the gap between the coating area and the plastic shell.
Further, the plastic shell internal face has an inclined surface for corresponding to the gluing zone position.
Further, the outer metal housing part is revealed in outside plastic body, is partially submerged into the plastic body.
Further, the interior metal-back further has a rake of a connection front cover shell and the rear casing,
The front end of the outer metal housing has the recessed portion that multiple directions of metal-back inwardly push, and the recessed portion supports the inclination
Portion.
Further, the outside wall surface of the plastic shell is recessed forms an at least card slot, and the card slot is located at the water proof ring
Rear end, to be fixed with the butt connector.
Further, from one card slot of each recessed formation in upper and lower ends outer surface, the card slot is located at described the plastic shell
Water proof ring rear end, to be fixed with the butt connector.
Further, the card slot number is two, and two card slots are located at the both sides up and down of the plastic shell simultaneously respectively
And the center of relatively described plastic shell is symmetrical in 180 degree.
Further, the insulating body has a docking groove, and multiple terminals are respectively at up and down the two of the docking groove
Side setting in a row, and the center of the relatively described docking groove of terminal described in two rows is symmetrical in 180 degree.
Compared with prior art, the utility model by plastic body outside wall surface set an at least annular protrusion to
The plastic shell internal face forms interference engagement, to close the gap of the plastic body and the plastic shell, and it is described
Further recessed one annular coating area of the outside wall surface of plastic body and full-filling marine glue, further prevent aqueous vapor to pass through the plastic body
Entering the electrical connector interior with the gap of the plastic shell, the outside wall surface of the plastic shell is equipped with water proof ring, when
When the electric connector enters the docking intracavitary docking of butt connector, the water proof ring close the plastic shell with it is described right
Gap between the docking chamber of connecting connector, and the water proof ring is integrally formed with the plastic shell, structure is more steady
Gu avoid because the electric connector repeatedly plug so that when water proof ring position offset lose sealing process, so as to prevent water
Gas enters internal circuit.
【Description of the drawings】
Fig. 1 is this electric connector and the unmated stereogram of butt connector；
Fig. 2 is the three-dimensional exploded view of this electric connector；
Fig. 3 is the stereogram of the non-injection molding of plastic body in this electric connector；
Fig. 4 is the stereogram that this electric connector is not loaded into plastic shell；
Fig. 5 is metal-back in outer metal housing cladding and the stereogram before cable；
Fig. 6 is the assembling figure that electric connector and butt connector coordinate；
Fig. 7 is the sectional view of Fig. 5；
Fig. 8 is the sectional view of Fig. 6.
The drawing reference numeral explanation of specific embodiment:
| Electric connector 100 | Butt connector 200 | Fastener 201 | |
| Insulating body 1 | Base portion 11 | Docking section 12 | Docking groove 120 |
| Terminal 2 | Contact site 21 | Weld part 22 | |
| Interior metal-back 3 | Front cover shell 31 | Rear casing 32 | Rake 33 |
| Circuit board 4 | First notch 41 | Second notch 42 | High temperature gummed tape 43 |
| Welding hole 44 | |||
| Cable 5 | Power cord 51 | Ground wire 52 | Detection lines 53 |
| Outer metal housing 6 | Front end 61 | Recessed portion 611 | Receiving space 612 |
| Rear end 62 | |||
| Plastic body 7 | Preceding plastic cement section 71 | Plastic cement section 72 afterwards | Linkage section 73 |
| Annular coating area 74 | Preceding plastic-sealed body 75 | Annular protrusion 76 | |
| Plastic shell 8 | Cavity 81 | Inclined surface 811 | Water proof ring 82 |
Card slot 83
【Specific embodiment】
For ease of being better understood from the purpose, structure, characteristics and efficacy of the utility model, in conjunction with attached drawing and specifically
The utility model is described in further detail for embodiment.
Please refer to Fig.1, Fig. 2 and Fig. 8, be a kind of electric connector 100 of the utility model, the electric connector 100 to
It is matched with a butt connector 200, including an insulating body 1, set on multiple terminals 2 of the insulating body 1, is shielded in institute
Metal-back 3 in one outside insulating body 1 is stated, a circuit board 4, the electric connection electricity being electrically connected with multiple terminals 2
One cable 5 of road plate 4, one is coated and fixed the outer metal housing 6 of the interior metal-back 4 and the cable 5, and the outer metal housing 6 wraps
The circuit board 4 is enclosed, a plastic body 7 is overmolded in outside the outer metal housing 6, and the partial melting plastic cement of the plastic body 7
It is packed into the outer metal housing 6, cools down aftershaping, further include a plastic shell 8 for being arranged the plastic body 7.
Fig. 6, Fig. 7 are please referred to, the insulating body 1 includes a base portion 11 and the docking extended forward from the base portion 11
Portion 12, size of the base portion 11 in upper and lower both sides is all higher than corresponding to size of the docking section 12 in upper and lower both sides, described right
Socket part 12 is equipped with from its front end recessed molding docking groove 120 backward.
Referring to Fig. 7, multiple terminals 2 are respectively with each setting in a row in the both sides up and down of the docking groove 120, it is each
The terminal 2 has the contact site 21 protruded into forward in the docking groove 120 and extends back outside the insulating body 1
A weld part 22, to be welded on the circuit board 4, multiple weld parts 22 are corresponded to be set in two rows, and on
The lower two rows terminal 2 is symmetrical in 180 degree relative to the center of the docking groove 120.
Fig. 2 and Fig. 7 are please referred to, the interior metal-back 3 is the tubular structure for being drawn technological forming, and shape matching is described absolutely
The outer surface of edge ontology 1, the interior metal-back 3 has a front cover shell 31, relative to a 31 widened rear casing 32 of front cover shell and
A rake 33 of the front cover shell 31 and the rear casing 32 is connected, before the front cover shell 31 is located at the rear casing 32
Side, i.e., described interior metal-back 3 shape big for the small after-opening of open front.
Referring to Fig. 2, the front end of the circuit board 4 is located between two rows of weld parts 22, and the weld part 22
Corresponding multiple conductive sheets on the circuit board 4（It is not shown）Welding is electrically connected.The circuit board 4 has from thereafter
End sets to the concave one first notch 41 and one second notch 42 to be formed, in first notch 41, second notch 42
4 upper and lower surface of the circuit board of surface and corresponding the two is equipped with conductive layer (not shown).It is additionally provided among the circuit board 4
One welding hole 44 is equipped with weld pad around the welding hole 44（It is not shown）.
Fig. 2 and Fig. 7 are please referred to, the cable 5 has a power cord 51, one ground wire 52 and a detection lines 53, the electricity
Source line 51 and ground wire 52 are respectively provided with a plurality of core wire.The power cord 51 and it is described ground wire 52 respectively with first notch 41
It is electrically connected with second notch 42, the core wire of the power cord 51 and the ground wire 52 passes through solder（It is not shown）Respectively
It is welded on the correspondence conductive layer at the first notch 41 and at second notch 42, the detection lines 53 are welded on the welding
Weld pad around hole 44（It is not shown）On, the junction of the cable 5 and the circuit board 4 is coated with one layer of high temperature gummed tape 43.
Fig. 3 and Fig. 4 are please referred to, the outer metal housing 6 is the straight structure that metallic plate punching bending is formed, described outer
Metal-back 6 has a front end 61 for being arranged the rear casing 32, and 61 position of front end by way of spot welding with
The interior metal-back 3 is fixed together, and a rear end 62, the rear end 62 and the line are extended in 61 rear end of front end
Cable 5 rivets, and the outer metal housing 6 surrounds the circuit board 4, the front end 61 extend forwardly beyond the rear casing 32 and with
The interior metal-back 3 forms a receiving space 612, and the front end 61 is pushed from its edge to interior 3 direction of metal-back
Multiple recessed portions 611 are formed, multiple recessed portions 611 abut the rake 33 to position the interior metal-back 3 and institute
The position of outer metal housing 6 is stated, in the present embodiment, the front end sets two recessed portions 611 in both sides respectively about 61, up and down
Two rows of recessed portions 611 are symmetrical in 180 degree relative to the center of front end 61, and in other embodiments, the recessed portion 611 is unlimited
In more than quantity and position.
Please refer to Fig. 3, Fig. 4, the plastic body 7 by being overmolded in the outer metal housing 6 and the cable 5, wherein
A part of melt plastic cement is packed by the receiving space 612 in the outer metal housing 6, outer gold described in a part of melt plastic cement
The gap filling belonged between shell 6 and the cable 5 enters into the outer metal housing 6, melt plastic cement cooling aftershaping, the plastic cement
Body 7 secures the above the components such as interior metal-back 3, outer metal housing 6, cable 5 and the circuit board 4.
Please refer to Fig. 3 and Fig. 4, plastic cement section 72 and positioned at described two after plastic cement section 71 and one before the plastic body 7 includes one
A linkage section 73 between person, before the front end 61 is coated on outside plastic cement section 71, the rear end 62 is embedded in plastic body 7
Interior, rear 72 size of plastic cement section is more than preceding 71 size of plastic cement section, and the outside wall surface of the rear plastic cement section 72 is provided at least
One annular protrusion 76, when the plastic shell 8 is arranged the plastic body 7, the annular protrusion and the plastic shell 8 are dry
It relates to, to close the gap between the plastic body 7 and the plastic shell 8, the recessed formation of outside wall surface of the linkage section 73
One annular coating area 74, and full-filling has marine glue（It is not shown）, the marine glue（It is not shown）Aqueous vapor to be further prevented to lead to
The gap crossed between the plastic body 7 and the plastic shell 8 is entered inside the electric connector 100.
Fig. 4 and Fig. 7 are please referred to, the preceding plastic cement section 71 has the preceding plastic-sealed body 75 of an adjoining front end 61, described
The outside wall surface of the coupled front end 61 in outer surface of preceding plastic-sealed body 75 is concordant.
Fig. 2, Fig. 7 and Fig. 8 are please referred to, the plastic shell 8 has a cavity 81, after the formation of cavity 81 open front is small
The big structure that is open simultaneously forms an inclined surface 811, and to coordinate the shape of the plastic body 7, the plastic shell 8 is from described interior
The front of metal-back 3 is socketed the interior metal-back 3, the outer metal housing 6 and the plastic body 7 successively, and the inclined surface 811 is right
Answer the position of the annular coating area 74.
Meanwhile 8 outside wall surface of plastic shell sets a water proof ring 82, the water proof ring 82 and the plastic shell 8 one
Body formed, when the electric connector 100 is inserted into the docking chamber of the butt connector 200, the water proof ring 82 can avoid water
Gas enters the butt connector 200 or the electric connector by the gap of plastic shell 8 and the butt connector 200
100 inside, and the water proof ring 82 is integrally formed with the plastic shell 8, can be avoided because of multiple plug or extraneous factor
Water proof ring 82 is caused to be detached from, and the front end of the cable 5 is located at the water proof ring 82 and encloses in the region set so that the electrical connection
The overall dimensions of device 100 advanced optimize.
It please refers to Fig.1, Fig. 7 and Fig. 8,8 outside wall surface of plastic shell further comprise relatively described 8 center of plastic shell
In symmetrical two card slots 83 of 180 degree, the card slot 83 is set on the rear end of the water proof ring 82, and the butt connector 200 is set
There is a fastener 201, when the electric connector 100 is inserted into the docking chamber of the butt connector 200, the fastener
201 are fastened on the card slot 83 and prevent the electric connector 100 from disengaging, and two card slots 83 are convenient for the electrical connection up and down for setting
Device 100 and the positive and negative inserting of the butt connector 200 are closed.
In conclusion the electric connector of the utility model has the advantages that：
1. the utility model in the outside wall surface of the plastic body 7 by setting an at least annular protrusion 76 to the modeling
The internal face of glue shell 8 forms interference engagement, to close the gap of the plastic body 7 and the plastic shell 8, and the modeling
Further recessed one annular coating area 74 of the outside wall surface of colloid 7 and full-filling marine glue（It is not shown）, aqueous vapor is further prevented to pass through
The gap of the plastic body 7 and the plastic shell 8 enters inside the electric connector 100, in 8 outside wall surface of plastic shell
Equipped with water proof ring 82, when the electric connector 100 enters the docking intracavitary docking of butt connector 200, the water proof ring 82
Close the gap docked chamber between of the plastic shell 8 with the butt connector 200, and the water proof ring 82 and the modeling
Glue shell 8 is integrally formed, and structure is more firm, avoids because more than 100 plug of the electric connector is so that the water proof ring 82
Position offset and lose sealing process, so as to prevent aqueous vapor from entering internal circuit, optimize waterproof effect.
2. the plastic body 7 fixes the cladding outer metal housing 6 and the cable 5 in a manner of injection molding, described outer
Metal-back 6 has 61 and one rear end 62 of front end, and the front end 61 is emerging in outside plastic body, the rear end
Portion 62 is embedded in the plastic body 7, therefore the thickness of one layer of plastic cement is reduced outside the front end 61, is so being electrically connected described in guarantee
The integral thickness of electric connector 100 is reduced while connecing 100 stable structure of device, adapts to the development trend of electric connector miniaturization.
3. 6 front end of outer metal housing has the recessed portion 611 that multiple 3 directions of metal-back inwardly push, the recessed portion
611 support the rake 33 of the interior metal-back 3, and when the electric connector 100 assembles, the recessed portion 611 is to described
It is positioned between outer metal housing 6 and the interior metal-back 3.
Detailed description above is only the explanation of the preferred embodiment of the utility model, and non-therefore limitation the utility model is specially
Sharp range, so, all with this creation specification and diagramatic content institute, equivalence techniques change for it, and it is specially to be both contained in this creation
In sharp range.
Claims (9)
1. a kind of electric connector, to coordinate a butt connector, which is characterized in that including：
One insulating body;
Multiple terminals, set on the insulating body;
Metal-back is shielded in the insulating body in one, and there is the interior metal-back front cover shell and relatively described front cover shell to expand
A rear casing;
One cable is electrically connected positioned at the insulating body rear end and with multiple terminals；
One outer metal housing is arranged and is fixed on the rear casing and the cable；
One plastic body is overmolded in outside the outer metal housing and partial melting plastic cement is packed into the outer metal housing, institute
The outside wall surface for stating plastic body is equipped with multiple annular protrusions；
One plastic shell, is arranged the plastic body, and the outer surface of the plastic shell is equipped with a water proof ring, the water proof ring and institute
State plastic shell integrated molding.
2. electric connector as described in claim 1, it is characterised in that：The cable passes through the region that the water proof ring surrounds.
3. electric connector as described in claim 1, it is characterised in that：The outside wall surface of the plastic body is recessed with an annular gluing
Area, and full-filling has a marine glue, the marine glue is closing the gap between the coating area and the plastic shell.
4. electric connector as claimed in claim 3, it is characterised in that：The internal face of the plastic shell has described in a correspondence
The inclined surface of gluing zone position.
5. electric connector as described in claim 1, it is characterised in that：The outer metal housing part is revealed in outside plastic body, portion
Divide in the embedded plastic body.
6. electric connector as described in claim 1, it is characterised in that：The interior metal-back further have one connection it is described before
One rake of case and the rear casing, the front end of the outer metal housing have the recess that multiple directions of metal-back inwardly push
Portion, the recessed portion support the rake.
7. electric connector as described in claim 1, it is characterised in that：The outside wall surface of the plastic shell is recessed to form at least one
Card slot, the card slot is located at the water proof ring rear end, to be fixed with the butt connector.
8. electric connector as claimed in claim 7, it is characterised in that：The card slot number is two, two card slot difference
It is in that 180 degree is symmetrical positioned at the both sides up and down of the plastic shell and the center of relatively described plastic shell.
9. electric connector as described in claim 1, it is characterised in that：The insulating body has a docking groove, multiple described
Terminal respectively at the docking groove the setting in a row of both sides up and down, and in the relatively described docking groove of terminal described in two rows
The heart is symmetrical in 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625285.3U CN207542475U (en) | 2017-11-29 | 2017-11-29 | Electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721625285.3U CN207542475U (en) | 2017-11-29 | 2017-11-29 | Electric connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207542475U true CN207542475U (en) | 2018-06-26 |
Family
ID=62615736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721625285.3U Active CN207542475U (en) | 2017-11-29 | 2017-11-29 | Electric connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207542475U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038075A (en) * | 2018-08-31 | 2018-12-18 | 东莞市广业电子有限公司 | A kind of water-proof structure of connector |
| CN110426574A (en) * | 2019-07-29 | 2019-11-08 | 南京瑞贻电子科技有限公司 | A kind of oscillograph waterproof case |
| EP3855578A1 (en) | 2020-01-24 | 2021-07-28 | Japan Aviation Electronics Industry, Limited | Connector assembly |
-
2017
- 2017-11-29 CN CN201721625285.3U patent/CN207542475U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038075A (en) * | 2018-08-31 | 2018-12-18 | 东莞市广业电子有限公司 | A kind of water-proof structure of connector |
| CN110426574A (en) * | 2019-07-29 | 2019-11-08 | 南京瑞贻电子科技有限公司 | A kind of oscillograph waterproof case |
| EP3855578A1 (en) | 2020-01-24 | 2021-07-28 | Japan Aviation Electronics Industry, Limited | Connector assembly |
| US11309661B2 (en) | 2020-01-24 | 2022-04-19 | Japan Aviation Electronics Industry, Limited | Connector assembly |
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