CN109428202A - A kind of electric connector and its tail accessory - Google Patents

A kind of electric connector and its tail accessory Download PDF

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Publication number
CN109428202A
CN109428202A CN201710770270.4A CN201710770270A CN109428202A CN 109428202 A CN109428202 A CN 109428202A CN 201710770270 A CN201710770270 A CN 201710770270A CN 109428202 A CN109428202 A CN 109428202A
Authority
CN
China
Prior art keywords
sealing element
electric connector
housing
cable
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710770270.4A
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Chinese (zh)
Other versions
CN109428202B (en
Inventor
李严亮
熊贤翠
王超
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China Aviation Optical Electrical Technology Co Ltd
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China Aviation Optical Electrical Technology Co Ltd
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Filing date
Publication date
Application filed by China Aviation Optical Electrical Technology Co Ltd filed Critical China Aviation Optical Electrical Technology Co Ltd
Priority to CN201710770270.4A priority Critical patent/CN109428202B/en
Publication of CN109428202A publication Critical patent/CN109428202A/en
Application granted granted Critical
Publication of CN109428202B publication Critical patent/CN109428202B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405Securing in non-demountable manner, e.g. moulding, riveting
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet

Abstract

The present invention relates to a kind of electric connector and its tail accessories.Electric connector includes electric connector tail accessory, electric connector tail accessory includes shell, it being provided in shell for realizing the housing sealing element sealed between shell and cable housing, being provided with the incoming seal part being provided on rear side of the inner sleeve sealing element and/or housing sealing element sealed between cable inner sleeve for realizing shell for will seal together with housing rear end and cable housing on front side of housing sealing element.Sealing structure at least two is set on electric connector tail accessory, substantially increases the leakproofness of electric connector tail accessory, realizes the reliable sealing between electric connector tail accessory and cable.

Description

A kind of electric connector and its tail accessory
Technical field
The present invention relates to a kind of electric connector and its tail accessories.
Background technique
Electric connector, which generally passes through electric connector tail accessory, to be realized and is fixedly connected with cable, existing to shield for connecting The electric connector tail accessory for covering cable generally comprises shell, and the rear end of shell is arranged cable cover, is arranged in shell for fixing The shielded layer fixed structure of cable shielding layer, the rear side setting of shielded layer fixed structure is for realizing line after cable is inserted into shell The sealing rubber ring sealed between cable housing and shell.For example, 203434351 U of Authorization Notice No. CN, a kind of entitled electricity The Chinese patent of tail portion of connector attachment discloses a kind of electric connector tail accessory, including sleeve, and the threads of sleeve connect It is connected to cable hood, the shielding ring for fixed cable shielded layer is equipped in sleeve, is provided on rear side of shielding ring for realizing line The protective rubber set sealed between cable housing and sleeve.The electric connector tail accessory of the type in actual use the shortcomings that Be: due between electric connector tail accessory and cable only for realizing the protective rubber sealed between cable housing and shell Set, rainwater is directly gathered at protective rubber set in seal process, and rainwater is easy to penetrate into from the sealing structure and produce after long-time Inside product, make product seal failure.
Summary of the invention
The purpose of the present invention is to provide a kind of electric connector tail accessories that can reliably seal with cable;Mesh of the invention Also reside in a kind of electric connector using above-mentioned electric connector tail accessory be provided.
To achieve the above object, a kind of technical solution 1 of electric connector tail accessory of the present invention is: a kind of electric connector tail Department enclosure, including shell are provided with for realizing the housing sealing element sealed between shell and cable housing in shell, and housing is close It is provided on front side of sealing for realizing after the inner sleeve sealing element and/or housing sealing element sealed between shell and cable inner sleeve Side is provided with the incoming seal part for sealing housing rear end and cable housing together.
Sealing structure at least two is set on electric connector tail accessory, and in seal process, rainwater is directly gathered in At outermost layer sealing structure, even if rainwater penetrates into inside the sealing structure after prolonged use, in this layer of sealing structure also Electrical connection is substantially increased so that rainwater be avoided to be directly entered interiors of products to the second seal structures that rainwater is stopped The leakproofness of device tail accessory realizes the reliable sealing between electric connector tail accessory and cable.
A kind of technical solution 2 of electric connector tail accessory of the invention is to do on the basis of technical solution 1 further Improve: the hardness of the housing sealing element is greater than the hardness of inner sleeve sealing element.It was sealed in the compression of electric connector tail accessory Cheng Zhong, cable cover successively compress housing sealing element and inner sleeve sealing element from back to front, and in this process, pressing force passes from back to front It passs, if the hardness of housing sealing element is less than or equal to the hardness of inner sleeve sealing element, housing sealing element inhales most of pressing force It receives, causes housing sealing element deflection very big, sealing is very tight, and inner sleeve sealing element deflection very little, it cannot reliably seal, because The hardness greater than inner sleeve sealing element of the hardness Design of housing sealing element is enable inner sleeve sealing element to seal prior to housing by this Part is compressed, and guarantees the reliable sealing of inner sleeve sealing element.
A kind of technical solution 3 of electric connector tail accessory of the invention is to do on the basis of technical solution 1 further Improve: the inner peripheral surface of the inner sleeve sealing element is corrugated surface.
A kind of technical solution 4 of electric connector tail accessory of the invention is to do on the basis of technical solution 1 further Improve: the incoming seal part includes that the interconnecting piece that front end is used to connect with connector shell and rear end are gradually reduced from front to back Cone cell tightening portion, which designs so that entire incoming seal part is tapered, and rainwater can pass through the incoming seal part of taper Outside flows away, and rainwater is avoided to assemble at incoming seal part.
A kind of technical solution 5 of electric connector tail accessory of the invention is any technical solution in technical solution 1-4 On the basis of be further improved: the rear end of shell is provided with cable cover, and cable cover is equipped with cable clamp, cable cover and cable clamp In incoming seal part.
To achieve the above object, a kind of technical solution 1 of electric connector of the present invention is: a kind of electric connector, including is electrically connected Device tail accessory is connect, the electric connector tail accessory includes shell, is provided in shell for realizing shell and cable housing Between the housing sealing element that seals, be provided in for realizing being sealed between shell and cable inner sleeve on front side of housing sealing element The incoming seal for sealing housing rear end together with cable housing is provided on rear side of set sealing element and/or housing sealing element Part.
Sealing structure at least two is set on electric connector tail accessory, and in seal process, rainwater is directly gathered in At outermost layer sealing structure, even if rainwater penetrates into inside the sealing structure after prolonged use, in this layer of sealing structure also Electrical connection is substantially increased so that rainwater be avoided to be directly entered interiors of products to the second seal structures that rainwater is stopped The leakproofness of device tail accessory realizes the reliable sealing between electric connector tail accessory and cable.
A kind of technical solution 2 of electric connector of the invention is further improved on the basis of technical solution 1: described The hardness of housing sealing element is greater than the hardness of inner sleeve sealing element.In the compression seal process of electric connector tail accessory, cable Cover successively compresses housing sealing element and inner sleeve sealing element from back to front, and in this process, pressing force is transmitted from back to front, if outside The hardness for covering sealing element is less than or equal to the hardness of inner sleeve sealing element, and housing sealing element absorbs most of pressing force, causes outer It is very big to cover sealing element deflection, sealing is very tight, and inner sleeve sealing element deflection very little, cannot reliably seal, therefore, housing is close The hardness greater than inner sleeve sealing element of the hardness Design of sealing, enables inner sleeve sealing element to be compressed prior to housing sealing element, protects Demonstrate,prove the reliable sealing of inner sleeve sealing element.
A kind of technical solution 3 of electric connector of the invention is further improved on the basis of technical solution 1: described The inner peripheral surface of inner sleeve sealing element is corrugated surface.
A kind of technical solution 4 of electric connector of the invention is further improved on the basis of technical solution 1: described Incoming seal part includes that diminishing cone cell is received from front to back for the interconnecting piece that front end is used to connect with connector shell and rear end Tight portion, which designs so that entire incoming seal part is tapered, rainwater can by flowing away outside the incoming seal part of taper, Rainwater is avoided to assemble at incoming seal part.
On the basis of a kind of technical solution 5 of electric connector of the invention is any technical solution in technical solution 1-4 Be further improved: the rear end of shell is provided with cable cover, and cable cover is equipped with cable clamp, and cable cover and cable clamp are located at inlet wire In sealing element.
Detailed description of the invention
Fig. 1 is a kind of structure chart of electric connector specific embodiment 1 of the present invention;
In figure: 1, incoming seal part;11, annular protrusion;2, cable cover;3, shell;4, gasket;5, inner sleeve sealing element;6, pressure-bearing Ring;7, shielding ring;8, resilient contact;9, cable clamp;10, pressure ring;12, housing sealing element.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.In the following embodiments, electric connector One end that tail accessory is connect with other positions of connector is front end, and one end for grafting cable is rear end or tail end.
A kind of specific embodiment 1 of electric connector of the invention, including electric connector tail accessory, electric connector tail portion are attached The specific structure of part is as shown in Figure 1, include shell 3, the rear end of shell 3 is threaded with cable cover 2, and cable cover 2 is equipped with line Cable clip 9 is disposed with pressure ring 10, housing sealing element 12, shielding ring 7, bearing ring 6, inner sleeve sealing element in shell 3 from back to front 5 and gasket 4, the front end face and 3 inner side step face block of shell of gasket 4 cooperate, and cable cover 2 passes through pressure ring during the connection process 10 compress housing sealing element 12, shielding ring 7, bearing ring 6, inner sleeve sealing element 5, gasket 4 in the axial direction, wherein housing Sealing element 12 is made of the higher rubber ring of hardness, housing sealing element 12 realized in compaction process shell 3 and cable housing it Between sealing;Bearing ring 6 and shielding ring 7 constitute shielded layer fixed structure, and the mating surface of the two is circular conical surface, and the two was compressing Cable shielding layer is fixedly clamped between the mating surface of the two to realize between shielded layer fixed structure and shielded layer in journey Be reliably connected;Inner sleeve sealing element 5 is that inner peripheral surface is wavy serrated seal circle, and the hardness of inner sleeve sealing element is lower than housing The hardness of sealing element guarantees to be compressed in compaction process prior to housing sealing element, to realize between shell 3 and cable inner sleeve Sealing.
In addition, the rear end cap of shell 3 is equipped with the incoming seal part 1 for sealing housing rear end and cable housing together, Cable cover 2 and cable clamp 9 thereon are located at the inside of incoming seal part 1, and incoming seal part includes that front end is used for and connector case The interconnecting piece of body connection and rear end diminishing cone cell tightening portion from front to back, the inner surface of interconnecting piece and cone cell tightening portion Annular protrusion 11 is provided in inner and outer surfaces.Incoming seal part front end covers housing rear end, rear end and cable housing cooperate and It is designed as pyramidal structure, flows away conducive to rainwater from incoming seal part outer surface, avoids rain water-harvesting.
Resilient contact 8 is provided on the outer peripheral surface of shielding ring 7, shielding ring 7 is realized and shell 3 by resilient contact 8 In the reliable contacts of radial direction.
At the conductive connection of shell 3 and connector shell 3 and be coated with part at the conductive connection of shielded layer fixed structure The remaining position of conductive layer, 3 surface of shell is coated with non-conductive coating, for increasing the corrosion-resistant of electric connector tail accessory Property.
Electric connector of the invention in actual use, is provided on electric connector tail accessory for by cable cover Incoming seal part 1 including 2 protections, realize the housing sealing element 12 sealed between shell 3 and cable housing, realize shell 3 with The inner sleeve sealing element 5 sealed between cable inner sleeve, rainwater directly flows away from incoming seal part outer surface in seal process, avoids It is close to be provided with housing between shell and cable housing once rainwater penetrates into inside incoming seal part after prolonged use for aggregation Seal structure, this layer of sealing structure can carry out second sealing to rainwater and stop, even if incoming seal part sealing structure and housing Sealing element sealing structure fails simultaneously, and there are also the inner sleeve sealing structures for realizing cable inner sleeve and housing seal for interiors of products, thus It avoids rainwater from being directly entered interiors of products, substantially increases the leakproofness of electric connector tail accessory, realize electric connector tail portion Reliable sealing between attachment and cable.
Two bearing rings 6 and shielding ring 7 being axially arranged, bearing ring 6 and shielding ring 7 is arranged by line in shielded layer fixed structure Cable shielded layer, which clamps, realizes being reliably connected between cable shielding layer and shielded layer fixed structure, and shielding ring 7 is set by its circumferential direction The resilient contact 8 and 3 conductive contact of shell set, realize being reliably connected between shielded layer fixed structure and shell 3, by upper Structure setting is stated, guarantees the conductive connection between shielded layer and shell 3 simultaneously on axially and radially direction.
Specific embodiments of the present invention 2 and the difference of specific embodiment 1 are: the inner sleeve sealing element and housing sealing element Only at setting one.
Specific embodiments of the present invention 3 and the difference of specific embodiment 1 are: the inner sleeve sealing element and housing sealing element Hardness it is identical.
Specific embodiments of the present invention 4 and the difference of specific embodiment 1 are: the outer peripheral surface of the bearing ring also with shell Conductive contact;Alternatively, the outer peripheral surface of bearing ring is contacted with housing conductive, and shielding ring is not contacted with housing conductive.
Specific embodiments of the present invention 5 and the difference of specific embodiment 1 are: the mating surface of bearing ring and shielding ring be with The vertical plane of axis.
A kind of specific embodiment of electric connector tail accessory of the invention, specific structure and a kind of above-mentioned electric connector The specific structure of electric connector tail accessory is identical in each embodiment, and details are not described herein again.

Claims (10)

1. a kind of electric connector tail accessory, including shell, it is provided in shell for realizing close between shell and cable housing The housing sealing element of envelope, it is characterised in that: be provided on front side of housing sealing element for realizing close between shell and cable inner sleeve Be provided on rear side of the inner sleeve sealing element and/or housing sealing element of envelope for by housing rear end and cable housing seal together into Wire seal.
2. electric connector tail accessory according to claim 1, it is characterised in that: the hardness of the housing sealing element is greater than The hardness of inner sleeve sealing element.
3. electric connector tail accessory according to claim 1, it is characterised in that: the inner peripheral surface of the inner sleeve sealing element is Corrugated surface.
4. electric connector tail accessory according to claim 1, it is characterised in that: the incoming seal part includes that front end is used In the interconnecting piece and rear end being connect with connector shell diminishing cone cell tightening portion from front to back.
5. electric connector tail accessory according to claim 1-4, it is characterised in that: the rear end of shell is provided with Cable cover, cable cover are equipped with cable clamp, and cable cover and cable clamp are located in incoming seal part.
6. a kind of electric connector, including electric connector tail accessory, the electric connector tail accessory includes shell, is set in shell It is equipped with for realizing the housing sealing element sealed between shell and cable housing, it is characterised in that: set on front side of housing sealing element It is equipped with and is used for for realizing being provided on rear side of the inner sleeve sealing element and/or housing sealing element sealed between shell and cable inner sleeve The incoming seal part that housing rear end and cable housing are sealed together.
7. electric connector according to claim 6, it is characterised in that: the hardness of the housing sealing element is sealed greater than inner sleeve The hardness of part.
8. electric connector according to claim 6, it is characterised in that: the inner peripheral surface of the inner sleeve sealing element is corrugated surface.
9. electric connector according to claim 6, it is characterised in that: the incoming seal part includes that front end is used for and connection The interconnecting piece of device shell connection and rear end diminishing cone cell tightening portion from front to back.
10. according to the described in any item electric connectors of claim 6-9, it is characterised in that: the rear end of shell is provided with cable cover, Cable cover is equipped with cable clamp, and cable cover and cable clamp are located in incoming seal part.
CN201710770270.4A 2017-08-31 2017-08-31 Electric connector and tail accessory thereof Active CN109428202B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710770270.4A CN109428202B (en) 2017-08-31 2017-08-31 Electric connector and tail accessory thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710770270.4A CN109428202B (en) 2017-08-31 2017-08-31 Electric connector and tail accessory thereof

Publications (2)

Publication Number Publication Date
CN109428202A true CN109428202A (en) 2019-03-05
CN109428202B CN109428202B (en) 2021-09-03

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Application Number Title Priority Date Filing Date
CN201710770270.4A Active CN109428202B (en) 2017-08-31 2017-08-31 Electric connector and tail accessory thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110379556A (en) * 2019-06-28 2019-10-25 中航光电科技股份有限公司 A kind of three coaxial hard CA cable assemblies

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201937110U (en) * 2011-01-13 2011-08-17 杭州日月电器股份有限公司 Bended type tail cover protection structure of electric connector
CN202906079U (en) * 2012-09-25 2013-04-24 遵义市飞宇电子有限公司 Screw sealed anti-corrosion connector plug
CN103227383A (en) * 2013-04-10 2013-07-31 镇江惠通元二接插件有限公司 Watertight connector
US20160064851A1 (en) * 2014-09-01 2016-03-03 Sumitomo Wiring Systems, Ltd. Connector
CN105846210A (en) * 2016-03-25 2016-08-10 深圳市柯耐特科技有限公司 Crimping connector and male joint assembly process

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201937110U (en) * 2011-01-13 2011-08-17 杭州日月电器股份有限公司 Bended type tail cover protection structure of electric connector
CN202906079U (en) * 2012-09-25 2013-04-24 遵义市飞宇电子有限公司 Screw sealed anti-corrosion connector plug
CN103227383A (en) * 2013-04-10 2013-07-31 镇江惠通元二接插件有限公司 Watertight connector
US20160064851A1 (en) * 2014-09-01 2016-03-03 Sumitomo Wiring Systems, Ltd. Connector
CN105846210A (en) * 2016-03-25 2016-08-10 深圳市柯耐特科技有限公司 Crimping connector and male joint assembly process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110379556A (en) * 2019-06-28 2019-10-25 中航光电科技股份有限公司 A kind of three coaxial hard CA cable assemblies
CN110379556B (en) * 2019-06-28 2021-01-29 中航光电科技股份有限公司 Three-coaxial hard cable assembly

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