CN202534858U - Electric connector with waterproof and dustproof tail portion - Google Patents
Electric connector with waterproof and dustproof tail portion Download PDFInfo
- Publication number
- CN202534858U CN202534858U CN2012200605320U CN201220060532U CN202534858U CN 202534858 U CN202534858 U CN 202534858U CN 2012200605320 U CN2012200605320 U CN 2012200605320U CN 201220060532 U CN201220060532 U CN 201220060532U CN 202534858 U CN202534858 U CN 202534858U
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- CN
- China
- Prior art keywords
- grommet
- electric connector
- housing
- hole
- bush
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electric connector with a waterproof and dustproof tail portion. The electric connector with the waterproof and dustproof tail portion comprises a housing and a compacting nut. A grommet is coaxially installed in the tail portion in the housing. Line passing holes are provided on the grommet. The compacting nut is installed in a tail end position of the housing through a screw thread, and a rear end of the compacting nut is provided with an internally-turned edge. A rear end of the grommet is provided with a frustum-shaped section which is large in the front portion and small in the back portion, and a bush is sleeved onto the frustum-shaped section. A front end of an internal hole of the bush is a taper hole which coincides with the external shape of the frustum-shaped section. The internally-turned edge of the compacting nut supports tightly and cooperates with a rear end of the bush. In wire connection, the bush can be driven to move onward through screwing the compacting nut. When the bush moves onward, the force applied to the grommet by the bush can be divided into two parts, one part onward presses the grommet tightly and makes the grommet change shape (bulging outward) along the radial direction, and the other part extrudes the frustum-shaped section of the grommet along the radial direction. The electric connector with the waterproof and dustproof tail portion solves the problem of the poor sealing effect of the tail portion of the current electric connector.
Description
Technical field
The utility model relates to and is electrically connected annex, especially a kind of electric connector of afterbody water proof and dust proof.
Background technology
The development of, miniaturization integrated along with various electric equipments, electric connector has obtained application more and more widely.Under some special occasions, require the tail end (end of incoming cables) of electric connector to possess dustproof, water-proof function and the long-term weatherability of using out of doors, wherein be used for low-voltage signal connector on the Control of Electric Vehicles cartridge device and be exactly wherein a kind of.This connector comprises that columnar housing and screw fit are in the clamping nut of said housing afterbody; Be provided with grommet in the tail end place in the said housing; Turn edge in the tail end place of clamping nut is provided with, during wiring, corresponding wire harness at first gets into metal shell through behind the said grommet again; Compress grommet through said clamping nut then, thereby realize the sealing at connector tail end place.Said structure has obtained using widely in field of connectors, yet owing to no corresponding hermetically-sealed construction between said grommet and the housing, so the sealing property between its grommet and the housing is limited, can not well satisfy user's requirement; In addition; Owing to do not have between said grommet and the housing and only revolve structure; Therefore grommet also happens occasionally with respect to the problem that housing rotates after receiving torsion; Grommet rotating relative to housing then can directly be destroyed being connected between the contact of wire harness and connector, finally causes the improper disconnection of circuit, when serious even can cause short circuit accident; Moreover; The cable-through hole that confession wire harness on the grommet of above-mentioned connector passes through all is preset as isometrical through hole; And with no corresponding hermetically-sealed construction between the corresponding lead; Grommet receive after the axial compression of clamping nut since distortion still can and housing between guarantee certain sealing; And the air-proof condition of the cooperation place between the cable-through hole of grommet and the corresponding wire harness is particularly abominable, and especially in some occasions that does not need whole cable-through holes to be activated simultaneously, unnecessary cable-through hole itself has just destroyed the sealing property of connector afterbody.
Summary of the invention
The purpose of the utility model is to provide the electric connector of afterbody water proof and dust proof, with the problem of the tail seal weak effect that solves existing electric connector.
In order to address the above problem; The electric connector of the afterbody water proof and dust proof of the utility model adopts following technical scheme: the electric connector of afterbody water proof and dust proof; Comprise housing and clamping nut, in the coaxial grommet that is equipped with of afterbody, said grommet is provided with cable-through hole in the said housing; Said clamping nut screw fit is in the tail end place of housing and in the rear end is provided with, turn edge; The rear end of said grommet has pre-large post-small taper type section and on this taper type section, is arranged with lining, the taper hole that the front end of the endoporus of lining is and the profile of said taper type section is coincide, and turning edge in the clamping nut to hold out against with the rear end of lining cooperates.
Before its taper type section, be provided with sealing ring on the said grommet and pass through the sealing ring and cooperate with housing seal.
Said grommet and housing only revolve cooperation through key and the keyway of being located between the two.
The hole wall of said cable-through hole is provided with at least one radially projecting inward convex edge.
Be provided with in the said cable-through hole between the two ends of the interlayer that can puncture and cable-through hole and cut off by said interlayer.
Because the rear end of the grommet of the electric connector of the afterbody water proof and dust proof of the utility model has pre-large post-small taper type section; Turn edge in the clamping nut and grommet between be provided with lining and the front end of lining be provided with grommet on the taper hole that coincide of taper type section; Therefore when wiring, can drive lining through the said clamping nut of turn moves forward; The power that lining applies grommet in the process that moves forward can be divided into two parts; A part compresses grommet forward and impels it that deformation (outwards heaving) radially takes place, thereby improves the sealing property between grommet and the housing, and another part radially pushes the taper type section of grommet; Thereby can impel grommet to compress corresponding wire harness, improve the sealing property between grommet and the wire harness; In sum, the electric connector of the afterbody water proof and dust proof of the utility model has solved the problem of the tail seal weak effect of existing electric connector.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 of electric connector of the afterbody water proof and dust proof of the utility model.
Embodiment
The embodiment 1 of the electric connector of the afterbody water proof and dust proof of the utility model; As shown in Figure 1; Has housing 1; Housing 1 is cylindrical and be equipped with grommet 2 in afterbody, and grommet 2 comprises the cylindrical segment that is positioned at front end and be positioned at the truncated cone section of rear end, grommet 2 through its front end be located at spacing joining of insulator 3 in the housing 1 and be incorporated in its cylindrical segment and be provided with a protruding key 4; The internal face of housing 1 is provided with the keyway corresponding with protruding key 4, only revolves with keyway through protruding key 4 between grommet 2 and the housing 1 to cooperate.Being provided with two sealing rings 10 in the place, the place ahead of protruding key 4 on the outer peripheral face of grommet in addition also cooperates with housing seal through sealing ring; In the present embodiment; Sealing ring 10 equal one are located on the grommet, and the tail end place screw fit of housing 1 has clamping nut 5, and clamping nut 5 turns edge in place, its rear end is provided with; Turn edge in the clamping nut 5 and the rear end of grommet 2 between at a distance from being provided with lining 6; The front end of lining 6 has a taper hole, and the profile of the taper type section of the shape of this taper hole and grommet 2 is coincide, and the taper type section of grommet 2 is flush-mounted in the taper hole of lining 6.Grommet 2 is provided with cable-through hole 7, cable-through hole 7 be used to supply corresponding wire harness pass be located at housing 1 through insulator 3 in contact 8 be connected, fore-and-aft direction is laid with radially projecting inward convex edge on the internal face of cable-through hole 7; Thereby make cable-through hole form sugarcoated haws shape; The convex edge is used for being sealed and matched with the crust of corresponding lead, thereby further improves the sealing property between grommet 2 and the lead, is provided with interlayer 9 in the cable-through hole 7; In the present embodiment; Interlayer 9 in each cable-through hole 7 all is located at place, its rear end, and interlayer 8 cuts off the cable-through hole of correspondence under initial condition, when wiring; Can the interlayer in the cable-through hole of respective amount be punctured according to the quantity of inlet wire, thereby corresponding excessively lead passes through.
Can drive lining through the said clamping nut of turn during wiring moves forward; The power that lining applies grommet in the process that moves forward can be divided into two parts; A part compresses grommet forward and impels it that deformation (outwards heaving) radially takes place, thereby improves the sealing property between grommet and the housing, and another part radially pushes the taper type section of grommet; Thereby can impel grommet to compress corresponding wire harness, improve the sealing property between grommet and the wire harness; In sum, the electric connector of the afterbody water proof and dust proof of the utility model has solved the problem of the tail seal weak effect of existing electric connector.
In other embodiment of the electric connector of afterbody water proof and dust proof, the protruding key on grommet described in the foregoing description and the housing and the position of keyway can also exchange; The quantity of the convex edge in the cable-through hole is all can more than one; The truncated cone section of grommet rear end can also be frustum of a pyramid shape, and under this kind state, need guarantee to be necessary between housing and the lining and are rotatably assorted; Can also the branch body structure between sealing ring and the grommet.
Claims (5)
1. the electric connector of afterbody water proof and dust proof; Comprise housing and clamping nut; In the coaxial grommet that is equipped with of afterbody, said grommet is provided with cable-through hole in the said housing, and said clamping nut screw fit is in the tail end place of housing and in the rear end is provided with, turn edge; It is characterized in that; The rear end of said grommet has pre-large post-small taper type section and on this taper type section, is arranged with lining, the taper hole that the front end of the endoporus of lining is and the profile of said taper type section is coincide, and turning edge in the clamping nut to hold out against with the rear end of lining cooperates.
2. the electric connector of afterbody water proof and dust proof according to claim 1 is characterized in that, before its taper type section, is provided with sealing ring on the said grommet and passes through the sealing ring to cooperate with housing seal.
3. the electric connector of afterbody water proof and dust proof according to claim 1 is characterized in that, said grommet and housing only revolve cooperation through key and the keyway of being located between the two.
4. the electric connector of afterbody water proof and dust proof according to claim 1 is characterized in that, the hole wall of said cable-through hole is provided with at least one radially projecting inward convex edge.
5. according to the electric connector of each described afterbody water proof and dust proof of claim 1-4, it is characterized in that, be provided with in the said cable-through hole between the two ends of the interlayer that can puncture and cable-through hole and cut off by said interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200605320U CN202534858U (en) | 2012-02-23 | 2012-02-23 | Electric connector with waterproof and dustproof tail portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200605320U CN202534858U (en) | 2012-02-23 | 2012-02-23 | Electric connector with waterproof and dustproof tail portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534858U true CN202534858U (en) | 2012-11-14 |
Family
ID=47136016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200605320U Expired - Fee Related CN202534858U (en) | 2012-02-23 | 2012-02-23 | Electric connector with waterproof and dustproof tail portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534858U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036101A (en) * | 2012-12-18 | 2013-04-10 | 中航光电科技股份有限公司 | Underwater plug-pull connector and preparation method thereof |
| CN103050831A (en) * | 2012-12-18 | 2013-04-17 | 中航光电科技股份有限公司 | Deepwater seal connector and manufacturing method thereof |
| CN104332757A (en) * | 2014-08-14 | 2015-02-04 | 中航光电科技股份有限公司 | Waterproof electrical connector and wire sealing body thereof |
| CN105226444A (en) * | 2015-10-21 | 2016-01-06 | 泰兴市海纳机电有限公司 | Electric connector |
| CN105846228A (en) * | 2016-06-14 | 2016-08-10 | 贵州航天电器股份有限公司 | Light round electric connector |
| CN106129700A (en) * | 2016-06-14 | 2016-11-16 | 贵州航天电器股份有限公司 | Lightness round electric connector tail accessory |
| CN111478080A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Combined fireproof wall-penetrating socket easy to install |
-
2012
- 2012-02-23 CN CN2012200605320U patent/CN202534858U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103036101A (en) * | 2012-12-18 | 2013-04-10 | 中航光电科技股份有限公司 | Underwater plug-pull connector and preparation method thereof |
| CN103050831A (en) * | 2012-12-18 | 2013-04-17 | 中航光电科技股份有限公司 | Deepwater seal connector and manufacturing method thereof |
| CN103036101B (en) * | 2012-12-18 | 2015-07-08 | 中航光电科技股份有限公司 | Underwater plug-pull connector and preparation method thereof |
| CN104332757A (en) * | 2014-08-14 | 2015-02-04 | 中航光电科技股份有限公司 | Waterproof electrical connector and wire sealing body thereof |
| CN105226444A (en) * | 2015-10-21 | 2016-01-06 | 泰兴市海纳机电有限公司 | Electric connector |
| CN105846228A (en) * | 2016-06-14 | 2016-08-10 | 贵州航天电器股份有限公司 | Light round electric connector |
| CN106129700A (en) * | 2016-06-14 | 2016-11-16 | 贵州航天电器股份有限公司 | Lightness round electric connector tail accessory |
| CN111478080A (en) * | 2020-03-20 | 2020-07-31 | 中航光电科技股份有限公司 | Combined fireproof wall-penetrating socket easy to install |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20190223 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |