CN107834283A - The sealing structure of plug, socket and underwater electrical connector - Google Patents
The sealing structure of plug, socket and underwater electrical connector Download PDFInfo
- Publication number
- CN107834283A CN107834283A CN201711227353.5A CN201711227353A CN107834283A CN 107834283 A CN107834283 A CN 107834283A CN 201711227353 A CN201711227353 A CN 201711227353A CN 107834283 A CN107834283 A CN 107834283A
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- CN
- China
- Prior art keywords
- contact pin
- seal
- jack
- contact
- plug
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/523—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases for use under water
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The present invention relates to the sealing structure of plug, socket and underwater electrical connector, including plug and socket, plug and socket grafting, contact pin part outer cladding seal, the end of contact pin be exposed contact body, exposed contact body be located at contact pin and coat outside seal；Jack inwall coats seal；Contact pin and the contact electrical contact under jack inserting state, set in the exposed contact body and jack of contact pin, contact pin cladding seal are interference fitted with jack cladding seal.The Hermetical connecting structure is simple and reliable, easy to make, good airproof performance and due to each contact pin under the cladding of contact pin seal independently of each other, the electric connector is carried out underwater pluggable in the case of without load, be convenient for changing and repair.Second goal of the invention of the present invention be to provide a kind of plug, the plug equally have it is simple and reliable for structure, the advantages of good seal performance.The present invention the 3rd goal of the invention be to provide a kind of socket, the socket equally have as plug the advantages of.
Description
Technical field
The present invention relates to underwater cable to connect equipment technical field, and in particular to plug, socket and underwater electrical connector
Sealing structure.
Background technology
Underwater electrical connector is the optimal of underwater electric energy distribution, control and electic protection mainly for various underwater works
Equipment, underwater electrical connector in use, will not only there is enough high-voltage resistance capabilities, and need have good sealing
Performance, it is to be ensured that contact pin should not be because the contact of product caused by poor sealing is between, contact pair in deep water after being plugged together with jack
The problems such as short circuit, insulating properties between seawater reduce makes product failure.
In recent years, accelerate with the speed of underwater work construction, the application of underwater electrical connector is also more and more extensive, under water
Water-tight equipment technology upgrading on electric connector also progressively upgrades.
Sealing structure on existing underwater electrical connector, be typically employed on shell set sealing ring come reach plug and
The effect that socket seals after plugging together, the product structure is complicated, processing and manufacturing is difficult, is unfavorable for underwater electrical connector commercially
Popularization and application.
The content of the invention
In order to solve the above-mentioned problems in the prior art, of the invention first goal of the invention is to provide a kind of water
The sealing structure of lower electric connector, the sealing structure is simple and reliable, can effectively ensure that the sealing of underwater electrical connector junction
Property, ensure the using effect and service life of underwater electrical connector, and underwater pluggable can be carried out in the case of without load, side
Just change and repair, be advantageous to the popularization and application of underwater electrical connector commercially.Second goal of the invention of the present invention exists
In providing a kind of plug, the plug is applied in electric connector described above, equally with simple and reliable for structure, sealing property
Well, the advantages of performance of electric connector in use being effectively improved.The 3rd goal of the invention of the present invention exists
In providing a kind of socket, the socket is equally applied in electric connector described above, same to have as above-mentioned plug
Advantage, it can effectively ensure that sealing of the electric connector in connection procedure.
A kind of sealing structure of above-mentioned underwater electrical connector, plug and socket are technically interrelated, belong to same hair
Bright design.
In order to realize above-mentioned first goal of the invention, the present invention uses following technical scheme：A kind of underwater electrical connector
Sealing structure, described electric connector include plug and socket, and the plug is provided with contact pin or jack, and the socket is provided with
Jack or contact pin, the contact pin and jack grafting；The contact pin part outer cladding seal, the end of the contact pin connect to be exposed
Contact, described exposed contact body are located at outside contact pin cladding seal；The jack inwall coats seal；Contact pin with
Under jack inserting state, the exposed contact body of the contact pin makes electrical contact with the contact set in the jack, the contact pin cladding
Seal and jack cladding seal interference fit.
As a preferred embodiment of the present invention, the contact pin cladding seal and jack coat seal by elastomeric material
It is made.
As a preferred embodiment of the present invention, the tapered structure in jack section.
As a preferred embodiment of the present invention, the contact pin cladding seal is formed with the plug integrated vulcanizing；With/
Or, the jack cladding seal is formed with the socket integrated vulcanizing.
As a preferred embodiment of the present invention, the contact pin is fixed on the contact pin cladding sealing using adhesive curing
Body.
In order to realize above-mentioned second goal of the invention, the present invention uses following technical scheme：A kind of plug, the plug are set
There is contact pin, the contact pin part outer cladding contact pin coats seal, and the end of the contact pin is exposed contact body, and described is exposed
Contact is located at outside contact pin cladding seal.
As a preferred embodiment of the present invention, the contact pin cladding seal is made up of elastomeric material.
As a preferred embodiment of the present invention, the contact pin cladding seal is formed with the plug integrated vulcanizing.
As a preferred embodiment of the present invention, the contact pin is fixed on the contact pin cladding sealing using adhesive curing
Body.
In order to realize above-mentioned second goal of the invention, the present invention uses another technical scheme：A kind of plug, it is described to insert
Head is provided with jack, and the jack inwall coats in seal and jack and is provided with contact.
In order to realize above-mentioned 3rd goal of the invention, the present invention uses following technical scheme：A kind of socket, the socket are set
There is contact pin, the contact pin part outer cladding contact pin coats seal, and the end of the contact pin is exposed contact body, and described is exposed
Contact is located at outside contact pin cladding seal.
As a preferred embodiment of the present invention, the contact pin cladding seal is made up of elastomeric material.
As a preferred embodiment of the present invention, the contact pin cladding seal is formed with the plug integrated vulcanizing.
As a preferred embodiment of the present invention, the contact pin is fixed on the contact pin cladding sealing using adhesive curing
Body.
In order to realize above-mentioned 3rd goal of the invention, the present invention uses another technical scheme：The socket, which is provided with, to be inserted
Hole, the jack inwall coat in seal and jack and are provided with contact.
Compared with prior art, the beneficial effects of the invention are as follows：The sealing structure of underwater electrical connector in the present invention, lead to
The jack cladding seal crossed the contact pin cladding seal being arranged on contact pin and be arranged in jack can effectively realize contact pin
Sealed connection between jack, the Hermetical connecting structure is simple and reliable, easy to make, and because each contact pin is in contact pin cladding
It is separate under the cladding of seal, can make it that the underwater electrical connector is inserted under water in the case of without load
Pull out, be convenient for changing and repair, be advantageous to the popularization and application of underwater electrical connector cable connection devices technical field under water.This
Plug in invention has simple and reliable for structure, good seal performance, can effectively improve electric connector making in use
The advantages of with performance.Socket in the present invention equally has the advantages of as above-mentioned plug, can effectively ensure that electric connector
Sealing in connection procedure.
Brief description of the drawings
Fig. 1 is electric connector structure schematic diagram under embodiment reclaimed water；
Fig. 2 is that the structure of underwater electrical connector in embodiment splits schematic diagram；
Fig. 3 is the structural representation of socket in underwater electrical connector in embodiment；
Fig. 4 is the structural representation of plug in underwater electrical connector in embodiment.
Reference：1st, plug；11st, contact pin；12nd, contact pin cladding seal；2nd, socket；21st, jack；22nd, jack coats
Seal；23rd, antelabium；31st, public set；32nd, mother set；4th, elastic collar.
Embodiment
The embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
Embodiment：As shown in Figures 1 to 4, a kind of sealing structure of underwater electrical connector, electric connector set wiring including interior
The plug 1 at end and the interior socket 2 for setting terminals, conductive cable are equipped with plug 1 and socket 2, to ensure electric connector
Electric connectedness in use.
Plug 1 is provided with the contact pin 11 that is electrically connected with the terminals in plug 1, and contact pin 11 can be according to being arranged in plug 1
The radical of cable be arranged to more, the more mutual insulation sets of contact pin so that the electric connector can be without load
In the case of carry out underwater pluggable, ensure the security during use.
The jack 21 being adapted with above-mentioned contact pin 11 is formed on socket 2, when plug 1 is with 2 grafting of socket, contact pin 11 is with setting
Terminals electrical contact in above-mentioned jack 21, realize the connectedness of electricity.
Or contact pin 11 can be provided with socket 2, jack 21 is set on plug 1, structure is taken between plug 1 and socket 2
Exchange, can equally realize that electric connector can carry out underwater pluggable in the case of without load, ensure the peace during use
Quan Xing.
In the prior art, it is substantially on the shell for lean against underwater electrical connector and sealing ring is set to reach plug and socket
The effect sealed after plugging together, the product structure is complicated, and processing and manufacturing is difficult and production cost is high, is unfavorable for such and is electrically connected under water
Popularization and use of the device in the field are connect, in order to solve the above-mentioned problems in the prior art, in the present embodiment, by inserting
Set sealing structure to ensure the sealing of plug and socket splicing position between pin and jack, ensure the use of underwater electrical connector
Effect.
Sealing structure in the present embodiment includes the contact pin cladding seal 12 that part is coated on contact pin 11, is partly coated on
It is that the part of contact pin 11 is rolled in contact pin cladding seal 12, the end of contact pin 11 is located at outside contact pin cladding seal 12, inserts
The part that pin 11 is located at outside contact pin cladding seal 12 is contact, is fixed with jack 21 and is fitted with the contact pin cladding phase of seal 12
For the jack cladding seal 22 and jack 21 matched somebody with somebody built with contact, contact is conductive metallic object, contact pin 11 and jack
21 when being in inserting state, and contact and the metallic object in plug hole 1 of contact pin 11 make electrical contact with, and realize the connection of electricity.
Jack coats seal 22 and contact pin cladding seal 12 and can be made by elastomeric material, can use elastomeric material
Make, when contact pin 11 is with 21 grafting of jack, contact pin cladding seal 12 can realize Durchgangshohle formula mistake with jack cladding seal 22
Be full of cooperation, interference fit connection be using contact pin cladding seal 12 and jack cladding seal 22 the two connected pieces in itself
Interference fit come the connection realized, according to the size of the magnitude of interference, contact pin cladding seal 12 and jack cladding seal 22 it
Between can make removable connection, may be alternatively configured non-disconnectable connection, in the present embodiment, in order to facilitate the replacing and maintenance in later stage,
Removable connection is used between plug 1 and socket 2.In interference fit, the ring external diameter of contact pin cladding seal 12 is slightly larger than slotting
Hole coats the ring internal diameter of seal 22, to ensure using interference to match somebody with somebody between contact pin cladding seal 12 and jack cladding seal 22
Close to connect, ensure the sealing of junction.
By the way of interference fit in connection procedure, the mating surface of junction is usually the face of cylinder, or circular cone
Face, in the present embodiment, the tapered structure in section of jack 21, i.e., interference fit is realized by the way of circular conical surface, in circular cone
The jack 21 of shape plays guide effect in connection procedure, facilitates quick grafting of the underwater connector in water.
Underwater electrical connector will not only have enough high-voltage resistance capabilities, and need have good sealing property, true
Protect contact pin 11 plugged together with jack 21 after in deep water should not because electric connector caused by poor sealing contact between, contact pair with
The problems such as short circuit between seawater, insulation reduce makes electric connector fail, and causes the increase of use cost, inserting in the present embodiment
First 1 is made with socket 2, contact pin cladding seal 12 and jack cladding seal 22 by non-conductive encapsulant, sealing material
Material is exactly to refer to bear material of the seam crossing displacement to reach airtight, watertight purpose and in embedded thing seam to be connected, this reality
Apply middle underwater electrical connector due to it is commonly used under water, in order to ensure the security during use, the encapsulant can be
The elastomeric material of rubber-like, its good insulation preformance, not easy conductive, and sealing ring compressibility and resilience made of elastomeric material
Good, permanent deformation is small, then is connected by the way that contact pin is coated between seal 12 and jack cladding seal 22 using interference fit
Connect, can effectively eliminate the gap between contact pin 11 and jack 21, ensure the sealing of splicing position, realize and be tightly connected, rubber
Plug 1, socket 2 and other product crushing resistances are good made of material, can effectively ensure that use of the underwater electrical connector in water.
In order to ensure the bonding strength of contact pin 11 and the junction of plug 1, contact pin 11 is consolidated by the way of adhesive curing fixation
Surely it is arranged in contact pin cladding seal 12, contact pin cladding seal 12 is extended to outside above-mentioned plug 1, facilitates contact pin 11 and jack
Grafting between 21, in order to be further ensured that the structural strength of underwater electrical connector and its service life in use,
Above-mentioned contact pin cladding seal 12 is formed with the above-mentioned integrated vulcanizing of plug 1.
Contact pin cladding seal 12 is stretched out in the one end of contact pin 11, is made electrical contact with the terminals being arranged in above-mentioned jack 21, real
The connectedness of existing electricity, the contact pin 11 in the present embodiment is at least one, short-circuit between in order to avoid contacting, every contact pin 11 it
Between set independently of each other, contact pin cladding seal 12 non-conductive made of elastomeric material is all coated with outside every contact pin 11.
In order to which quick grafting can be realized under water, the lead similar to contact pin 11 can be also provided with plug 1, is being inserted
The pilot hole being adapted with lead is opened up on seat 2, realizes quick grafting, reduces and changes or overhaul electric connector under water
Difficulty.
An annular lip 23 is at least formed on the wall that jack 21 contacts with contact pin 11, being provided with above-mentioned antelabium 23 can bullet
Property deformation ring packing antelabium 23 sealing ring, the setting of sealing ring further ensures close between contact pin 11 and jack 21
Feng Xing, and the frictional force of contact pin 11 and the junction of jack 21 is enhanced, avoid caused by electric connector loosens in use
Contingency.
After contact pin 11 inserts jack 21, by being arranged on the lock sleeve of above-mentioned electric connector peripheral hardware by plug 1 and socket
Fixed both 21, above-mentioned lock sleeve includes public set 31 and mother set 32, and public affairs set 31 is placed on outside above-mentioned plug 1, and mother set 32 is placed on above-mentioned
Outside socket 2, public affairs set 31 is inserted in mother set 32 and thread connection, in order to be further ensured that the effect of lock sleeve on electrical connectors, protects
The stability of lock sleeve is demonstrate,proved, elastic collar 4 is provided between above-mentioned public set 31 and above-mentioned plug 1.
Contact pin 11 in the present embodiment uses the compound contact pin structure of rubber-wrapping structure, and contact pin 11 plugs together with what jack 21 docked
In length, part outside is rubber-coated, and a part is that the contact that line end or cable be in contact, jack is inscribed with jack 21
21 parts are rubber bodies jack, and another part is elastic metallic body jack, when plug 1 docks with socket 2, coat rubber
The male portion of glue and the rubber bore portion elasticity of jack are interference fitted, and realize contact between, between contact pair and seawater
Isolation sealing, the metal part of contact pin 11 contacts with the resilient metal portion of jack 21, realize contact pin 11, jack 21 it is good
Electrical contact.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention；Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Although reference in figure has more been used herein：1st, plug；11st, contact pin；12nd, contact pin cladding seal；2、
Socket；21st, jack；22nd, jack cladding seal；23rd, antelabium；31st, public set；32nd, mother set；4th, the term such as elastic collar, but simultaneously
It is not excluded for the possibility using other terms.It is used for the purpose of more easily describing and explaining the sheet of the present invention using these terms
Matter；Any additional limitation is construed as all to disagree with spirit of the present invention.
Claims (10)
1. the sealing structure of underwater electrical connector, described electric connector includes plug and socket, and the plug is provided with contact pin
Or jack, the socket are provided with jack or contact pin, the contact pin and jack grafting；It is characterized in that：The contact pin is local outer
Seal is coated, the end of the contact pin is exposed contact body, and described exposed contact body is located at contact pin cladding seal
Outside；The jack inwall coats seal；Under contact pin and jack inserting state, the exposed contact body of the contact pin is inserted with described
The contact electrical contact set in hole, the contact pin cladding seal and jack cladding seal interference fit.
2. the sealing structure of underwater electrical connector according to claim 1, it is characterised in that：The contact pin coats seal
And jack cladding seal is made up of elastomeric material.
3. the sealing structure of underwater electrical connector according to claim 1, it is characterised in that：The jack section is tapered
Structure.
4. the sealing structure of underwater electrical connector according to claim 1, it is characterised in that：The contact pin uses gluing sulphur
The contact pin cladding seal is fixed in change.
5. plug, it is characterised in that：The plug is provided with contact pin, and the contact pin part outer cladding contact pin coats seal, described
The end of contact pin is exposed contact body, and described exposed contact body is located at outside contact pin cladding seal.
6. plug according to claim 5, it is characterised in that：The contact pin is fixed on the contact pin bag using adhesive curing
Cover seal.
7. plug, it is characterised in that：The plug is provided with jack, and the jack inwall is coated to be provided with seal and jack and connect
Contact.
8. socket, it is characterised in that：The socket is provided with contact pin, and the contact pin part outer cladding contact pin coats seal, described
The end of contact pin is exposed contact body, and described exposed contact body is located at outside contact pin cladding seal.
9. socket according to claim 8, it is characterised in that：The contact pin is fixed on the contact pin bag using adhesive curing
Cover seal.
10. socket, it is characterised in that：The socket is provided with jack, and the jack inwall is coated to be provided with seal and jack and connect
Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227353.5A CN107834283A (en) | 2017-11-29 | 2017-11-29 | The sealing structure of plug, socket and underwater electrical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711227353.5A CN107834283A (en) | 2017-11-29 | 2017-11-29 | The sealing structure of plug, socket and underwater electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107834283A true CN107834283A (en) | 2018-03-23 |
Family
ID=61646424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711227353.5A Pending CN107834283A (en) | 2017-11-29 | 2017-11-29 | The sealing structure of plug, socket and underwater electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107834283A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899249A (en) * | 2018-07-11 | 2018-11-27 | 浙江正泰电器股份有限公司 | Relay, relay vacuumize inflation system and relay vacuumizes inflation method |
| CN109616825A (en) * | 2018-11-19 | 2019-04-12 | 中国人民解放军海军工程大学 | Watertight connector and its manufacturing method |
| CN112103733A (en) * | 2020-09-18 | 2020-12-18 | 河南省鼎润科技实业有限公司 | A kind of interface unit |
| CN112530637A (en) * | 2020-11-20 | 2021-03-19 | 中法渤海地质服务有限公司湛江分公司 | Composite cable and connector for photoelectric detection of oil well |
| CN113851887A (en) * | 2021-09-09 | 2021-12-28 | 深圳市崧盛电子股份有限公司 | Underwater power-on connecting seat |
| CN114336142A (en) * | 2021-11-30 | 2022-04-12 | 赣州潜行精密制造有限公司 | Quick wet plug electric connection structure |
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| CN201541011U (en) * | 2009-02-23 | 2010-08-04 | 四川海洋特种技术研究所 | Upright abyssal compression resisting sealing cable connector |
| CN201570684U (en) * | 2009-12-28 | 2010-09-01 | 中国科学院沈阳自动化研究所 | Watertight connector |
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| RU157889U1 (en) * | 2014-09-10 | 2015-12-20 | Федеральное государственное бюджетное учреждение науки институт океанологии им. П.П. Ширшова Российской академии наук | SEALED CABLE CONNECTOR |
| CN207732169U (en) * | 2017-11-29 | 2018-08-14 | 浙江中杭电子有限公司 | A kind of sealing structure of plug, socket and underwater electrical connector |
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| DE1804945A1 (en) * | 1968-10-24 | 1969-11-06 | Krupp Gmbh | Pressurized water-tight plug contact connection |
| CN201541011U (en) * | 2009-02-23 | 2010-08-04 | 四川海洋特种技术研究所 | Upright abyssal compression resisting sealing cable connector |
| CN101615748A (en) * | 2009-07-17 | 2009-12-30 | 中航光电科技股份有限公司 | Straight cutting pulls out water-sealed connector component and plug and socket thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108899249A (en) * | 2018-07-11 | 2018-11-27 | 浙江正泰电器股份有限公司 | Relay, relay vacuumize inflation system and relay vacuumizes inflation method |
| CN108899249B (en) * | 2018-07-11 | 2023-11-21 | 浙江正泰电器股份有限公司 | Relay, relay vacuumizing and inflating system and relay vacuumizing and inflating method |
| CN109616825A (en) * | 2018-11-19 | 2019-04-12 | 中国人民解放军海军工程大学 | Watertight connector and its manufacturing method |
| CN112103733A (en) * | 2020-09-18 | 2020-12-18 | 河南省鼎润科技实业有限公司 | A kind of interface unit |
| CN112530637A (en) * | 2020-11-20 | 2021-03-19 | 中法渤海地质服务有限公司湛江分公司 | Composite cable and connector for photoelectric detection of oil well |
| CN112530637B (en) * | 2020-11-20 | 2022-08-12 | 中海石油(中国)有限公司湛江分公司 | Composite cable and connector for photoelectric detection of oil well |
| CN113851887A (en) * | 2021-09-09 | 2021-12-28 | 深圳市崧盛电子股份有限公司 | Underwater power-on connecting seat |
| CN113851887B (en) * | 2021-09-09 | 2024-04-02 | 深圳市崧盛电子股份有限公司 | Underwater power-on connecting seat |
| CN114336142A (en) * | 2021-11-30 | 2022-04-12 | 赣州潜行精密制造有限公司 | Quick wet plug electric connection structure |
| CN114336142B (en) * | 2021-11-30 | 2022-11-25 | 赣州市潜行科技有限公司 | Quick wet plug electric connection structure |
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