CN105742887A - Explosion-preventing electrical connector - Google Patents
Explosion-preventing electrical connector Download PDFInfo
- Publication number
- CN105742887A CN105742887A CN201610197775.1A CN201610197775A CN105742887A CN 105742887 A CN105742887 A CN 105742887A CN 201610197775 A CN201610197775 A CN 201610197775A CN 105742887 A CN105742887 A CN 105742887A
- Authority
- CN
- China
- Prior art keywords
- flame proof
- explosion
- contact
- electric connector
- contact element
- 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
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- 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
- H01R13/533—Bases, cases made for use in extreme conditions, e.g. high temperature, radiation, vibration, corrosive environment, pressure
-
- 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
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
Abstract
The invention relates to the field of electrical connection, in particular to an explosion-preventing electrical connector. The explosion-preventing electrical connector comprises an electrical connector shell, wherein an insulation body is arranged in an inner cavity of the electrical connector shell, a contact element installation hole is formed in the insulation body and is used for installing a contact element, the contact element is arranged in the contact element installation hole, a contact element explosion-preventing surface is arranged on a peripheral surface of the contact element and extends along an axial direction of the contact element, a contact element installation hole explosion-preventing surface is arranged on the hole wall of the contact element installation hole and extends along the axial direction of the contact element installation hole, the contact element explosion-preventing surface and the contact element installation hole explosion-preventing surface are in clearance fit to form a contact element explosion-preventing gap extending along the axial direction of the contact element by a first preset length. The contact element explosion-preventing gap can be used for reducing energy generated by explosion, and an explosion prevention effect is achieved; the contact element and the contact element installation hole in the insulation body are in clearance fit during installation, and the contact element is disassembled to be maintained or replaced once damaged; and the explosion-preventing electrical connector can be used in a press wire type cable product, and the application range of the explosion-preventing electrical connector is expanded.
Description
Technical field
The present invention relates to electrical connection field, particularly to a kind of flame proof electric connector.
Background technology
In various electrical equipments, the consumption of electric connector is increasing, in use procedure, electric connector is needed to have different functions, to adapt to different use occasions, such as in explosive gas atmosphere, it is necessary to install the electric connector with flame proof function on flameproof cabinet.
Also occurring the electric connector with flame proof function in prior art, existing flame proof electric connector mainly includes plug and socket, by assembling end cap on socket, makes that adapter is inside and outside to be environmentally isolated, plays flame proof effect.When but this type electric connector uses, the matching requirements of end cap are extremely strict, otherwise it is easy to make flame proof electric connector lose flame proof function, and because end cap and socket are two components, once end cap is lost, socket just loses explosion prevention function, it is impossible to use.
For the problems referred to above, market also occurs in that some other kinds of electric connectors, such as notification number is CN201904495U, the day for announcing is the disclosed a kind of unexplosive electric connector of Chinese patent of 2012.07.20, this unexplosive electric connector includes plug and socket, plug and socket is two suitable electric connectors, plug includes connecting plug casing and coupling nut, jack insulator it is provided with in plug, jack insulator and plug insulator, by casting glue, jack insulator and Plug contact are fixed, socket includes Socket casing, Socket casing inner chamber is provided with socket insulator and casting glue, by casting glue, socket insulator and socket contact are fixed, casting glue on plug and socket plays flame proof effect.But, the contact on this electrical connector plug and socket is fixed by casting glue, for adopting the cable of the compression joint type mode of connection cannot use this electric connector, use scope is limited, and, plug or the contact on socket are once there be damage, it is impossible to dismantled and keep in repair.
Summary of the invention
It is an object of the invention to provide a kind of flame proof electric connector, use that scope is limited, contact cannot dismantle the problem carrying out keeping in repair solving existing electric connector.
A kind of flame proof art of electrical connectors scheme of the present invention is: flame proof electric connector, including electric connector housing, electric connector housing inner chamber is provided with insulator, insulator is provided with the contact cavity for installing contact, contact cavity is provided with contact, the outer peripheral face of described contact is provided with along its axially extended contact explosion suppresion surface, the hole wall of described contact cavity is provided with along its axially extended contact cavity explosion suppresion surface, described contact explosion suppresion surface and described contact cavity explosion suppresion surface matched in clearance, form the contact flame proof gap along described axially extending first preseting length of contact.
The first described preseting length is more than 12.5mm, and described contact flame proof gap is less than or equal to 0.15mm.
Described electric connector housing is tubular shell, described insulator is the column insulator adaptive with described barrel-type casing, described tubular shell inner peripheral surface is provided with along its axially extended housing explosion suppresion surface, described column insulator outer peripheral face is provided with along its axially extended insulator explosion suppresion surface, described housing explosion suppresion surface and described insulator explosion suppresion surface matched in clearance, form the insulator flame proof gap along described axially extending second preseting length of insulator.
The second described preseting length is more than 12.5mm, and described insulator flame proof gap is less than or equal to 0.15mm.
Described flame proof electric connector is provided with the mating side for plugging together with suitable electric connector adaptation, the outer peripheral face of the electric connector housing of described flame proof electric connector mating side or inner peripheral surface be provided with axially extending along it, plug together the explosion suppresion surface that plugs together in flame proof gap for being formed with the inner peripheral surface or outer peripheral face matched in clearance of mating electrical connector housing mating side, the described explosion suppresion surface that plugs together is along described axially extending 3rd preseting length of flame proof electric connector.
The 3rd described preseting length is more than 12.5mm, and described plugs together flame proof gap less than or equal to 0.15mm.
The contact cavity explosion suppresion surface that the invention have the benefit that on insulator cooperatively forms contact flame proof gap with contact explosion suppresion surface, contact flame proof gap can weaken the energy that blast produces, explosive is avoided to ignite external environment condition, realize flame proof effect, with the contact cavity matched in clearance on insulator when contact is installed, once contact damages, contact is dismantled and carries out keeping in repair or changing, this flame proof electric connector can use in the cable product of pressure line type, increases the use scope of electric connector.
Accompanying drawing explanation
Fig. 1 is the schematic diagram during flame proof electric connector use of the present invention；
Fig. 2 is the structural representation of pin connector in Fig. 1；
Fig. 3 is the structural representation of socket connector in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
nullThe specific embodiment of the flame proof electric connector of the present invention，As shown in Figure 1 to Figure 3，Flame proof electric connector is pin connector and socket connector respectively，Pin connector includes plug casing 12，Plug casing 12 inner chamber is provided with plug insulator 111，Plug insulator 111 is fixed in the inner chamber of plug casing 12 by collar，Plug contact installing hole on plug insulator 111 is provided with Plug contact 14，Plug contact installing hole is provided with along its axially extended contact cavity explosion suppresion surface，Plug contact 14 is cylindrical contact，The outer peripheral face of Plug contact 14 is provided with along its axially extending contact explosion suppresion surface，Installing hole explosion suppresion surface and contact explosion suppresion surface matched in clearance，Form the Plug contact flame proof gap 17 along axially extending first preseting length of Plug contact，First preseting length is more than 12.5mm，Plug contact flame proof gap 17 is less than or equal to 0.15mm，Plug casing 12 is the housing of tubular，Plug insulator 111 is the column insulator of the shape adaptation with plug casing 12，The inner peripheral surface of plug casing 12 is provided with along its axially extended housing explosion suppresion surface，The outer peripheral face of plug insulator 111 is provided with along its axially extended insulator explosion suppresion surface，Housing explosion suppresion surface and insulator explosion suppresion surface matched in clearance，Form the plug insulator flame proof gap 110 along axially extending second preseting length of plug insulator，Second preseting length is more than 12.5mm，Plug insulator flame proof gap 110 is less than or equal to 0.15mm，The outer peripheral face of the mating side of plug casing 12 is provided with and plugs together explosion suppresion surface 113 along its axially extended plug，Plug plugs together explosion suppresion surface 113 can plug together explosion suppresion surface 29 matched in clearance with the socket on the inner peripheral surface of the mating side of adaptive socket connector，Formed and plug together flame proof gap 30 along axially extending 3rd preseting length of pin connector，3rd preseting length is more than 12.5mm，Plug together flame proof gap 30 less than or equal to 0.15mm，The mating side of plug casing 12 is provided with socket-head cap 11，Plug is protected when plug and socket disconnects，Plug mating side is made to seal，On the side face that socket-head cap 11 and plug casing 12 coordinate, it is provided with side face sealing ring 13 simultaneously、End face is provided with end face seal end 15，Promote the sealing property of mating side，Plug casing 12 is rotatably equipped with coupling nut 16，Coupling nut can rotate with 16 on plug casing 12，So that socket-head cap 11 or socket and plug plug together，This enforcement is coordinated with the external screw thread on Socket casing by the female thread on coupling nut 16，Realize the connection of plug and socket，Coupling nut 16 and socket can also pass through bayonet socket or multiple thread connection in other embodiments，Coupling nut 16 is provided with holding screw 19，After plug plugs together with socket-head cap or plug，For coupling nut 16 is fixed，Plug casing deviates from the other end of mating side and is provided with connection adnexa 112，For connecting cable and pin connector，The face connecting adnexa 112 and plug casing cooperation is provided with connection adnexa sealing ring 18，Promote the sealing connected between adnexa and pin connector.
nullSocket connector includes Socket casing 21，The inner chamber of Socket casing 21 is provided with socket insulator 22，Socket insulator 22 is fixed in the inner chamber of Socket casing 21 by collar 25，The socket contact installing hole of socket insulator 22 is provided with socket contact 23，Socket contact installing hole is provided with along its axially extended installing hole explosion suppresion surface，The outer peripheral face of socket contact 23 is provided with along its contact explosion suppresion surface axially extended，Installing hole explosion suppresion surface and contact explosion suppresion surface matched in clearance，Form the socket contact flame proof gap 27 along axially extending first preseting length of socket contact，First preseting length is more than 12.5mm，Socket contact flame proof gap 17 is less than or equal to 0.15mm，Socket casing 21 is the housing of tubular，Socket insulator 22 is the column insulator of the shape adaptation with Socket casing 21，The inner peripheral surface of Socket casing 21 is provided with along its axially extended housing explosion suppresion surface，The outer peripheral face of socket insulator 22 is provided with along its axially extended insulator explosion suppresion surface，Housing explosion suppresion surface and insulator explosion suppresion surface matched in clearance，Form the socket insulator flame proof gap 210 along axially extending second preseting length of socket insulator，Second preseting length is more than 12.5mm，Socket insulator flame proof gap 210 is less than or equal to 0.15mm，The inner peripheral surface of the mating side of Socket casing 21 is axially arranged with socket along it and plugs together explosion suppresion surface 29，Socket plugs together explosion suppresion surface 29 can plug together explosion suppresion surface 113 matched in clearance with the plug on the outer peripheral face of the mating side of adaptive pin connector，Formed and plug together flame proof gap 30 along axially extending 3rd preseting length of electric connector，3rd preseting length is more than 12.5mm，Plug together flame proof gap 30 less than or equal to 0.15mm，The mating side of Socket casing 21 is provided with socket end cap 24，Socket is protected when plug and socket disconnects，Socket mating side is made to seal，Socket deviates from one end of mating side and is provided with for installation into the installed surface on casing，Installed surface is provided with gasket seal 26，The sealing property that socket is connected is promoted with casing when socket is installed，The outer peripheral face that socket coordinates with casing is provided with installation explosion suppresion surface，Explosion suppresion surface is installed to coordinate with the explosion suppresion surface on casing，Form flame proof gap，In other embodiments，Explosion suppresion surface can also be flame proof thread，Directly screw on casing.
In the electric coupler component use procedure of the present invention, plug insulator flame proof gap and Plug contact flame proof gap is formed respectively between plug insulator and Socket casing on pin connector, between plug insulator and Plug contact, pin connector inner chamber is made to be isolated from the outside, when plug inside is blasted, under the effect in flame proof gap, it is blast ejecta and explosion suppresion surface close contact, is beneficial to the reduction of temperature；The structure of outside ejecta flame is also destroyed in flame proof gap simultaneously, makes taper flame become ligule, increases the contact area of flame and explosion suppresion surface, be beneficial to cooling；The speed of flame proof gap also slow blast ejecta, extends cool time, strengthens cool time；There is gas leakage pressure release effect in flame proof gap, reduces pressure produced by explosive in plug casing.So, the energy that blast produces fails gradually, and outside of will not igniting, because flame proof is not by end cap seal flame proof, even if therefore not using end cap, explosion insulation performance is still unaffected.Similar with pin connector, socket connector is also by forming socket insulator flame proof gap and socket contact flame proof gap, making socket inner chamber be isolated from the outside, it is achieved flame proof effect, also it doesn't matter with end cap for explosion insulation performance, will not lose because of end cap and affect explosion insulation performance.When pin connector and socket connector plug together, plug together flame proof gap and make pin connector and socket connector mating side form explosion-proof chamber, it is achieved the flame proof effect of inserting position.The contact of pin connector and socket connector is installed on insulator each through matched in clearance, can use in pressure line type cable product, and owing to contact can be dismantled, once owing to contact damages, contact is dismantled and carries out keeping in repair or changing.When installing casing and being flameproof cabinet, the installation explosion suppresion surface of socket connector makes cabinets cavity and exocoel isolation, it is achieved casing flame proof；When installing casing and being common casing, plug and socket plugs together the flame proof that can realize within cable mutually, it is therefore desirable to the socket mounting hole on casing does not have flame proof requirement, it is only necessary to ensure to install.
It is in above-mentioned enforcement in the present invention, Plug contact flame proof gap, plug insulator flame proof gap, socket contact flame proof gap, socket insulator flame proof gap and plug together the length dimension in flame proof gap and gap size is all that the physical dimension for the pin connector in implementing or socket connector sets, in other embodiments, those skilled in the art can also arrange the flame proof gap of different length size and gap size according to the standard about explosion suppresion surface in conjunction with the concrete structure size of flame proof adapter.
Claims (6)
1. flame proof electric connector, including electric connector housing, electric connector housing inner chamber is provided with insulator, insulator is provided with the contact cavity for installing contact, contact cavity is provided with contact, it is characterized in that: the outer peripheral face of described contact is provided with along its axially extended contact explosion suppresion surface, the hole wall of described contact cavity is provided with along its axially extended contact cavity explosion suppresion surface, described contact explosion suppresion surface and described contact cavity explosion suppresion surface matched in clearance, form the contact flame proof gap along described axially extending first preseting length of contact.
2. flame proof electric connector according to claim 1, it is characterised in that: the first described preseting length is more than 12.5mm, and described contact flame proof gap is less than or equal to 0.15mm.
3. flame proof electric connector according to claim 1 and 2, it is characterized in that: described electric connector housing is tubular shell, described insulator is the column insulator adaptive with described barrel-type casing, described tubular shell inner peripheral surface is provided with along its axially extended housing explosion suppresion surface, described column insulator outer peripheral face is provided with along its axially extended insulator explosion suppresion surface, described housing explosion suppresion surface and described insulator explosion suppresion surface matched in clearance, form the insulator flame proof gap along described axially extending second preseting length of insulator.
4. flame proof electric connector according to claim 3, it is characterised in that: the second described preseting length is more than 12.5mm, and described insulator flame proof gap is less than or equal to 0.15mm.
5. flame proof electric connector according to claim 1 and 2, it is characterized in that: described flame proof electric connector is provided with the mating side for plugging together with suitable electric connector adaptation, the outer peripheral face of the electric connector housing of described flame proof electric connector mating side or inner peripheral surface be provided with axially extending along it, plug together the explosion suppresion surface that plugs together in flame proof gap for being formed with the inner peripheral surface or outer peripheral face matched in clearance of mating electrical connector housing mating side, the described explosion suppresion surface that plugs together is along described axially extending 3rd preseting length of flame proof electric connector.
6. flame proof electric connector according to claim 5, it is characterised in that: the 3rd described preseting length is more than 12.5mm, and described plugs together flame proof gap less than or equal to 0.15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197775.1A CN105742887B (en) | 2016-03-31 | 2016-03-31 | A kind of flame proof electric connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610197775.1A CN105742887B (en) | 2016-03-31 | 2016-03-31 | A kind of flame proof electric connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105742887A true CN105742887A (en) | 2016-07-06 |
| CN105742887B CN105742887B (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610197775.1A Active CN105742887B (en) | 2016-03-31 | 2016-03-31 | A kind of flame proof electric connector |
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| Country | Link |
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| CN (1) | CN105742887B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092060A (en) * | 2016-10-14 | 2018-05-29 | 乐视汽车（北京）有限公司 | Charging interface terminal assemblies, charging gun, charging pile, cradle and automobile |
| CN114976731A (en) * | 2022-07-26 | 2022-08-30 | 中天科技海缆股份有限公司 | Universal fixing device for connector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188812Y (en) * | 1993-05-13 | 1995-02-01 | 董爱群 | Flame-proof micro-switch plug |
| CN101223675A (en) * | 2005-07-12 | 2008-07-16 | 库珀·克劳斯-海因兹有限责任公司 | Explosion-proof connector |
| CN201904495U (en) * | 2010-11-29 | 2011-07-20 | 沈阳兴华航空电器有限责任公司 | Anti-explosion electric connector |
| CN202444106U (en) * | 2011-12-22 | 2012-09-19 | 哈尔滨东方安科技有限公司 | Explosion-proof connector |
| CN104241961A (en) * | 2013-06-09 | 2014-12-24 | 上海翔洲电气科技有限公司 | Explosive-proof cable connector |
| CN104319537A (en) * | 2014-10-17 | 2015-01-28 | 中航光电科技股份有限公司 | Flame-proof connector assembly |
| JP2015144514A (en) * | 2014-01-31 | 2015-08-06 | 株式会社帝国電機製作所 | Pressure-resistant explosion-proof connector |
-
2016
- 2016-03-31 CN CN201610197775.1A patent/CN105742887B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2188812Y (en) * | 1993-05-13 | 1995-02-01 | 董爱群 | Flame-proof micro-switch plug |
| CN101223675A (en) * | 2005-07-12 | 2008-07-16 | 库珀·克劳斯-海因兹有限责任公司 | Explosion-proof connector |
| CN201904495U (en) * | 2010-11-29 | 2011-07-20 | 沈阳兴华航空电器有限责任公司 | Anti-explosion electric connector |
| CN202444106U (en) * | 2011-12-22 | 2012-09-19 | 哈尔滨东方安科技有限公司 | Explosion-proof connector |
| CN104241961A (en) * | 2013-06-09 | 2014-12-24 | 上海翔洲电气科技有限公司 | Explosive-proof cable connector |
| JP2015144514A (en) * | 2014-01-31 | 2015-08-06 | 株式会社帝国電機製作所 | Pressure-resistant explosion-proof connector |
| CN104319537A (en) * | 2014-10-17 | 2015-01-28 | 中航光电科技股份有限公司 | Flame-proof connector assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108092060A (en) * | 2016-10-14 | 2018-05-29 | 乐视汽车（北京）有限公司 | Charging interface terminal assemblies, charging gun, charging pile, cradle and automobile |
| CN114976731A (en) * | 2022-07-26 | 2022-08-30 | 中天科技海缆股份有限公司 | Universal fixing device for connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105742887B (en) | 2018-01-16 |
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