CN110289513A - The connection structure of charging gun cable and charging gun connecting terminal - Google Patents

The connection structure of charging gun cable and charging gun connecting terminal Download PDF

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Publication number
CN110289513A
CN110289513A CN201910610373.3A CN201910610373A CN110289513A CN 110289513 A CN110289513 A CN 110289513A CN 201910610373 A CN201910610373 A CN 201910610373A CN 110289513 A CN110289513 A CN 110289513A
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CN
China
Prior art keywords
cable
wall
charging gun
nut
connecting terminal
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Granted
Application number
CN201910610373.3A
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Chinese (zh)
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CN110289513B (en
Inventor
李益宾
崔小龙
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Xulichen New Energy Dongguan Co ltd
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Mianyang Xu Li Chen Technology Co Ltd
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Priority to CN201910610373.3A priority Critical patent/CN110289513B/en
Publication of CN110289513A publication Critical patent/CN110289513A/en
Application granted granted Critical
Publication of CN110289513B publication Critical patent/CN110289513B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/302—Cooling of charging equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
    • H01B7/425—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid the construction being bendable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • 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
    • H01R13/02—Contact members
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/5804—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable comprising a separate cable clamping part
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/59—Threaded ferrule or bolt operating in a direction parallel to the cable or wire
    • 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
    • H01R13/58—Means for relieving strain on wire connection, e.g. cord grip, for avoiding loosening of connections between wires and terminals within a coupling device terminating a cable
    • H01R13/595—Bolts operating in a direction transverse to the cable or wire
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00—Connectors or connections adapted for particular applications
    • H01R2201/26—Connectors or connections adapted for particular applications for vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses the connection structures of a kind of charging gun cable and charging gun connecting terminal, comprising: interior circulation fluid cold joint line terminals and the cable connecting with interior circulation fluid cold joint line terminals；Cable includes: copper wire, knitted conductor layer, cable endothelium and cable sheath；A plurality of water-flowing trough is provided on cable sheath and cable endothelium；Interior circulation fluid cold joint line terminals include: connecting terminal II, the middle nut connecting with connecting terminal II, the outer split nut II connecting with middle nut, the tightening hoop I and limited block I being arranged in outer split nut II.Coolant liquid is passed through in cable copper wire and flows in the interior circulation fluid cold joint line terminals connecting with charging gun by the present invention, coolant liquid can flow back from the rear end of copper wire riveting, then coolant liquid liquid feeding end is back to by the interlayer water-flowing trough of cable sheath and cable endothelium, realizes the efficient cooling drop to cable.

Description

The connection structure of charging gun cable and charging gun connecting terminal
Technical field
The present invention relates to charging gun technical fields, and in particular to a kind of charging gun cable and charging gun connecting terminal Connection structure.
Background technique
In terms of charging gun charging interface, state indicates AC charge port and direct-current charge port at present, and traditional conduction-type fills The maximum current that power port can be born is 250A (with more than or equal to 70mm2Cable).New-energy automobile charge prepd is by close Market application and inspection in several years, temperature rise increase is obvious, and 250A is left with using the time to increase for DC high-power charge prepd at present Right electric current just will appear fever and ablation situation seriously then occurs, and the formula of increasingly sprawling is presented in the problem, when charging electricity Stream is more than 250 ampere-hours, because radiating condition is bad, the temperature of cable conductor, the temperature of charging gun connecting terminal, cable The temperature of connector copper lug is excessively high, and cannot use.To reduce the charging time, increases and rush electric electric current, need to design 500A big Electric current liquid cooling cable, to solve the problems such as large current charge generates fever and poor stability, existing high current liquid cooling cable In, due to not having available connection method between traditional cable socket and coolant pipe, it is primarily due to existing Cable connection methods be for connecting traditional dry core cable, can not be in above-mentioned high-power liquid cooling cable and cable Electrode connection after again effectively connection coolant pipe, i.e., its can not effective guarantee liquid cooling conduit flow path it is unobstructed, if use Existing connection method connects above-mentioned high-power liquid cooling cable and coolant pipe, and the liquid cooling conduit in liquid cooling cable will be squeezed Pressure blocks and can not provide the flow channel of liquid cooling medium, can send out during the charging process because temperature is excessively high so as to cause cable Raw burn ruins phenomenon, therefore, currently designed to propose a kind of new connection structure for the application for promoting above-mentioned high-power liquid cooling cable, For ensureing that the flowing of the liquid cooling conduit after above-mentioned high-power liquid cooling cable is connect with coolant pipe is unobstructed.
Summary of the invention
It is excellent it is an object of the invention to solve at least the above problems and/or defect, and provide at least to will be described later Point.
In order to realize these purposes and other advantages according to the present invention, a kind of charging gun cable and charging are provided The connection structure of rifle connecting terminal, comprising:
The interior circulation fluid cold joint line terminals being connect with charging gun and the cable being connect with interior circulation fluid cold joint line terminals；
The cable include: multiply winding copper wire, be successively wrapped in outside copper wire knitted conductor layer, cable endothelium and Cable sheath；A plurality of water-flowing trough I is axially evenly arranged on the inner wall of the cable sheath；On the inner wall of the cable endothelium Axially it is evenly arranged with a plurality of water-flowing trough II；
The interior circulation fluid cold joint line terminals include:
Connecting terminal II, with taper feed liquor end, accommodating chamber II and raised limiting section；Riveting in the accommodating chamber II The exposed copper wire of voltage cable one end；Multiple liquid-passing holes are provided on the inner wall of taper feed liquor end；The taper liquid feeding end There are water flowing gaps II between the inner wall and knitted conductor layer in portion；
Middle nut is stepped cylindrical structure；The inner wall and terminals for the column structure of the middle nut being relatively large in diameter The outer wall of son II is detachably connected, the end for the column structure of the middle nut being relatively large in diameter and the protrusion of connecting terminal II Limiting section is in contact；The inner wall of the lesser column structure of diameter is set on cable endothelium, and by the end of cable endothelium It is crimped between the end outer wall of taper feed liquor end of connecting terminal II and the inner wall of middle nut；The diameter of the middle nut Multiple half slots I are axially provided on the inner wall of biggish column structure；The column structure of the middle nut being relatively large in diameter Multiple through-holes I are evenly arranged on interlayer between inner and outer wall；The end for the column structure of the middle nut being relatively large in diameter Portion is provided with recessed portion I；And it is the water flowing gap II, multiple liquid-passing holes, multiple half slots I, recessed portion I, more A through-hole I is in connection setting；
Outer split nut II, one end and the outer wall of the lesser column structure of diameter of middle nut are detachably connected, it is described in The stepped ends of the stepped cylindrical structure of nut are in contact with the end of outer split nut II；The other end of the outer split nut II It is set on the end of cable sheath；Multiple half slots II are axially provided on the inner wall of the outer split nut II；The external lock Recessed portion II is provided on the end that nut II is connect with middle nut；Multiple through-holes I of the middle nut and outer split nut II Recessed portion II, multiple half slots II are in connection setting；
Tightening hoop I is set on cable endothelium and is located in the end of outer split nut II, and the cable sheath End is crimped between the outer wall of tightening hoop I and the inner wall of outer split nut II；I inner wall of tightening hoop and cable endothelium it Between there are water flowing gaps IV；
Limited block I is arranged in outer split nut II and is set on cable endothelium, and limited block I is located at tightening hoop I Between middle nut, the both ends of the limited block I are in contact with the end of tightening hoop I and middle nut respectively；The limited block I There are water flowing gaps V between cable endothelium；Multiple through-holes II are evenly arranged on the limited block I；The outer split nut II multiple half slots II, multiple through-holes II of limited block I, water flowing gap V, water flowing gap IV are in connection setting.
Preferably, the outer wall of the inner wall and connecting terminal II of the column structure of the middle nut being relatively large in diameter is removable Unload connection type are as follows: be provided with the screw thread to match with middle nut on the outer wall of the connecting terminal II；The outer split nut II One end and middle nut the lesser column structure of diameter the mode that is detachably connected of outer wall are as follows: the diameter of the middle nut The screw thread to match with outer split nut II is provided on the outer wall of lesser column structure.
Preferably, the mode that the both ends of the limited block I are connected with the end of tightening hoop I and middle nut respectively are as follows: It is provided with annular groove I on the outer wall of the end of the tightening hoop I, is provided with annular groove on the outer wall of the end of the middle nut II, the both ends of the limited block I are provided with annular protrusion, and the annular protrusion at both ends is fastened with annular groove I and annular groove II respectively Connection.
Preferably, the end outer wall of the taper feed liquor end of the connecting terminal II is provided with outer conical surface III, described The internal conical surface III to match with outer conical surface III is provided on the inner wall of middle nut；The end of the cable endothelium is crimped on Between outer conical surface III and internal conical surface III.
Preferably, outer conical surface IV is provided on the outer wall of the tightening hoop I, on the inner wall of the outer split nut II It is provided with the internal conical surface IV to match with outer conical surface IV；The end of one end of the cable sheath is crimped on outer conical surface Between IV and internal conical surface IV.
Preferably, the limited block I is two pieces of semi arch limited blocks I, and two pieces of semi arch limited blocks I match shape At cylindrical drum limited block I, cylindrical drum limited block I is set in the outside of cable endothelium.
Preferably, the protrusion of the end for the column structure of the middle nut being relatively large in diameter and connecting terminal II limits The position that portion is in contact is provided with sealing ring I；The stepped ends of the stepped cylindrical structure of the middle nut and outer split nut II The position that end is in contact is provided with sealing ring II.
Preferably, it is semicircle, half elliptic, rectangle, triangle, wave that a plurality of water-flowing trough I, which is section, Shape, square, any one in trapezoidal through slot；
The a plurality of water-flowing trough II be section be semicircle, half elliptic, rectangle, triangle, waveform, square, Any one in trapezoidal through slot.
Preferably, there are gaps I between the knitted conductor layer and cable endothelium；Outside the cable endothelium and cable There are gaps II between skin.
Preferably, the cable further include: protective layer is wrapped on cable sheath；The protective layer is polychlorostyrene second It is alkene protective layer, polyethylene protective layer, perfluoroethylene-propylene protective layer, nylon protective layer, any one in polyolefin protective layer Kind；The cable sheath is TPU crust, TPE crust, any one in TPR crust.
The present invention is include at least the following beneficial effects: the present invention is by the way that coolant liquid to be passed through inside cable copper wire and flow The interior circulation fluid cold joint line terminals extremely being connect with charging gun, and pass sequentially through water flowing gap II, multiple liquid-passing holes, multiple semicircles Slot I, recessed portion I, multiple through-holes I, recessed portion II, multiple half slots II, multiple through-holes II of limited block I, water flowing gap V, Then water flowing gap IV is back to coolant liquid liquid feeding end by a plurality of water-flowing trough I of cable sheath, realizes the height to cable Effect cools, and the interior circulation fluid cold joint line terminals used is reasonable in design, and leakproofness is excellent, and use Do not have to that cooling pipe is separately provided in cable, reduce cable volume, has saved cable cost, and use a plurality of water-flowing trough I and a plurality of water-flowing trough II structure, cable in use, when cable is by external force bending, will not influence fluid cross-section product and Flow velocity will not influence the proper flow circulation of coolant liquid, while using charging gun cable and charging gun terminals of the invention The connection structure of son has excellent liquid cooling effect, and makes the wire cable weight saving used, and line footpath reduces.
Further advantage, target and feature of the invention will be partially reflected by the following instructions, and part will also be by this The research and practice of invention and be understood by the person skilled in the art.
Detailed description of the invention:
Fig. 1 is the overall structure diagram of cold joint line terminals in recirculated water in the present invention；
Fig. 2 is the schematic diagram of the section structure of cable of the present invention；
Fig. 3 is the schematic diagram of the section structure of cold joint line terminals in recirculated water in the present invention；
Fig. 4 is the structural schematic diagram for the cable end that the present invention is connect with cold joint line terminals in interior recirculated water；
Fig. 5 is the structural schematic diagram of connecting terminal II of the present invention；
Fig. 6 is the schematic diagram of the section structure of connecting terminal II of the present invention；
Fig. 7 is the structural schematic diagram of nut in the present invention；
Fig. 8 is the structural schematic diagram at another visual angle of nut in the present invention；
Fig. 9 is the schematic diagram of the section structure of nut in the present invention；
Figure 10 is the structural schematic diagram of the outer split nut II of the present invention；
Figure 11 is the schematic diagram of the section structure of the outer split nut II of the present invention；
Figure 12 is the structural schematic diagram of limited block I of the present invention；
Figure 13 is the structural schematic diagram of semi arch limited block I of the present invention；
Figure 14 is the structural schematic diagram of tightening hoop I of the present invention；
Figure 15 is the structural schematic diagram of the outer split nut I of the present invention；
Figure 16 is the schematic diagram of the section structure of the outer split nut I of the present invention；
Figure 17 is the structural schematic diagram of tightening hoop II of the present invention；
Figure 18 is the structural schematic diagram of limited block II of the present invention；
Figure 19 is the structural schematic diagram of Inlet and outlet water connecting terminal of the present invention；
Figure 20 is the schematic diagram of the section structure of Inlet and outlet water connecting terminal of the present invention；
Figure 21 is the cable end structural schematic diagram that the present invention is connect with Inlet and outlet water connecting terminal；
Figure 22 is the structural schematic diagram of connecting terminal I of the present invention；
Figure 23 is the structural schematic diagram of split nut in the present invention；
Figure 24 is the schematic diagram of the section structure of split nut in the present invention；
Figure 25 is the schematic diagram of the section structure of connecting terminal I of the present invention.
Specific embodiment:
It does outer split nut I to the present invention with reference to the accompanying drawing to be further described in detail, to enable those skilled in the art join Book text can be implemented accordingly as directed.
It should be appreciated that such as " having ", "comprising" and " comprising " term used herein do not allot one or more The presence or addition of a other elements or combinations thereof.
Fig. 1~14 show the connection structure of a kind of charging gun cable and charging gun connecting terminal of the invention, packet It includes:
The interior circulation fluid cold joint line terminals being connect with charging gun and the cable being connect with interior circulation fluid cold joint line terminals；
The cable includes: the copper wire 30 of multiply winding, knitted conductor layer 38, the cable being successively wrapped in outside copper wire 30 Endothelium 31 and cable sheath 32；A plurality of water-flowing trough I 33 is axially evenly arranged on the inner wall of the cable sheath 32；The electricity A plurality of water-flowing trough II 34 is axially evenly arranged on the inner wall of cable endothelium 31；
The interior circulation fluid cold joint line terminals 1 include:
Connecting terminal II 11, with taper feed liquor end 12, accommodating chamber II 13 and raised limiting section 14；The receiving The exposed copper wire of riveting cable one end in chamber II 13；Multiple liquid-passing holes are provided on the inner wall of taper feed liquor end 12 121；There are water flowing gaps II 15 between the inner wall and knitted conductor layer of taper feed liquor end 12；
Middle nut 16 is stepped cylindrical structure；The inner wall for the column structure 161 of the middle nut being relatively large in diameter with The outer wall of the copper wire riveting section of connecting terminal II 11 is detachably connected, the column structure 161 of the middle nut being relatively large in diameter End is in contact with the raised limiting section 14 of connecting terminal II 11；The inner wall of the lesser column structure 162 of diameter is set in On cable endothelium 31, and the end of cable endothelium 31 312 is crimped on to the end of the taper feed liquor end 12 of connecting terminal II 11 Between outer wall and the inner wall of middle nut 16；It is axially provided on the inner wall for the column structure 161 of the middle nut being relatively large in diameter Multiple half slots I 1611；On interlayer between the inner and outer wall for the column structure 161 of the middle nut being relatively large in diameter It is even to be provided with multiple through-holes I 1612；The end for the column structure 161 of the middle nut being relatively large in diameter is provided with recessed portion I 1613；And it is the water flowing gap II 15, multiple liquid-passing holes 121, multiple half slots I 1611, recessed portion I 1613, more A through-hole I 1612 is in connection setting；
Outer split nut II 17, one end and the outer wall of the lesser column structure 162 of diameter of middle nut are detachably connected, The stepped ends 163 of the stepped cylindrical structure of the middle nut 16 are in contact with the end of outer split nut II 17；The external lock spiral shell The other end of mother II 17 is set on the end 322 of cable sheath 32；It is axially provided on the inner wall of the outer split nut II 17 Multiple half slots II 171；Recessed portion II 172 is provided on the end that the outer split nut II 17 is connect with middle nut 16；It is described Multiple through-holes I 1612 of middle nut 16 are in be connected to set with the recessed portion II 172 of outer split nut II 17, multiple half slots II 171 It sets；
Tightening hoop I 18 is set on cable endothelium 31 and is located in the end of outer split nut II 17, and the cable The end 322 of crust 32 is crimped between the outer wall of tightening hoop I 18 and the inner wall of outer split nut II 17；The tightening hoop I 18 There are water flowing gaps IV 181 between inner wall and cable endothelium 31；
Limited block I 19 is arranged in outer split nut II 17 and is set on cable endothelium 31, and limited block I 19 is located at Between tightening hoop I 18 and middle nut 16, the both ends of the limited block I 19 end phase with tightening hoop I 18 and middle nut 16 respectively Connection；There are water flowing gaps V 191 between the limited block I 19 and cable endothelium 31；It is uniformly arranged on the limited block I 19 There are multiple through-holes II 192；Multiple half slots II 171 of the outer split nut II 17, limited block I 19 multiple through-holes II 192, Water flowing gap V 191, water flowing gap IV 181 are in connection setting；
In this technical solution, using the connection structure of charging gun cable and charging gun connecting terminal, the one of cable End is connect by interior circulation fluid cold joint line terminals with charging gun, and the other end of cable passes through Inlet and outlet water connecting terminal and charging pile Connection；Coolant liquid (insulating oil, transformer oil etc.) is passed through cable endothelium and knitted conductor layer by Inlet and outlet water connecting terminal The a plurality of water-flowing trough II 34 of gap I 36 and cable endothelium, then the taper feed liquor end of coolant flow to connecting terminal II Inner wall and knitted conductor layer between water flowing gap II 15, and pass sequentially through connecting terminal II 11 multiple liquid-passing holes 121, Enter the recessed of external lock nut II 17 after multiple half slots I 1611 of middle nut 16, recessed portion I 1613 and multiple through-holes I 1612 Concave portion II 172 and multiple half slots II 171, water flowing gap V 191, lead to multiple through-holes II 192 subsequently into limited block I 19 The a plurality of water-flowing trough I 33 in the gap II 37 and cable sheath that enter cable sheath and cable endothelium after water space IV 181 returns It is discharged after Inlet and outlet water connecting terminal, realizes that the cooling to charging gun cable is realized to the efficient of cable in this way It cools, and the interior circulation fluid cold joint line terminals of use is reasonable in design, coolant liquid can be after copper wire riveting End is flowed back, and is realized to the more comprehensive cooling of copper wire, and the sealing structure used is excellent；Using a plurality of water flowing The structure of slot I and a plurality of water-flowing trough II, liquid cooling cable in use, when cable is by external force bending, will not influence fluid Sectional area and flow velocity will not influence the proper flow circulation of coolant liquid；And a plurality of water-flowing trough I and a plurality of water-flowing trough used II structure keeps the pressure for being passed through coolant liquid consistent, and flow velocity is consistent, ensure that the cooling effect to cable.
In the above-mentioned technical solutions, the inner wall of the riveting section for the column structure 161 of the middle nut being relatively large in diameter with connect The outer wall detachable connection method of line terminals II 11 are as follows: be provided on the outer wall of the connecting terminal II 11 and middle 16 phase of nut Matched screw thread 112 has the advantages that installation easy to disassemble in this way.
In the above-mentioned technical solutions, the lesser column structure of diameter of one end of the outer split nut II 17 and middle nut The mode that 162 outer wall is detachably connected are as follows: be provided on the outer wall of the lesser column structure 162 of the diameter of the middle nut The screw thread 1621 to match with outer split nut II 17.
In the above-mentioned technical solutions, the both ends of the limited block I 19 are connected with the end of tightening hoop I and middle nut respectively The mode connect are as follows: be provided with annular groove I 183 on the outer wall of the end of the tightening hoop I 18, the end of the middle nut it is outer Annular groove II 165 is provided on wall, the both ends of the limited block I 19 are provided with annular protrusion 195, the annular protrusion 195 at both ends It is fastened and connected respectively with annular groove I and annular groove II.
In the above-mentioned technical solutions, the end outer wall of the taper feed liquor end 12 of the connecting terminal II 11 is provided with outer Circular conical surface III 111 is provided with the internal conical surface III 164 to match with outer conical surface III 111 on the inner wall of the middle nut 16； The end of the cable endothelium 31 is crimped between outer conical surface III 111 and internal conical surface III 164, in this way, is had The good advantage of leakproofness, and energy locking cable endothelium, are completely embedded cable with connector, are easily assembled to.
In the above-mentioned technical solutions, outer conical surface IV 182, the external lock spiral shell are provided on the outer wall of the tightening hoop I 18 The internal conical surface IV 173 to match with outer conical surface IV 182 is provided on the inner wall of mother II 17；The one of the cable sheath 32 The end at end is crimped between outer conical surface IV 182 and internal conical surface IV 173.In this way, have leakproofness good Advantage, and energy locking cable crust, are completely embedded cable with connector, are easily assembled to.
In the above-mentioned technical solutions, the limited block I 19 is two pieces of semi arch limited blocks I 193, and two pieces of semi arches limit Position block I 193 matches to form cylindrical drum limited block I 194, and cylindrical drum limited block I 194 is set in the outside of cable endothelium 31.It adopts Be conducive to the installation of structure with the mode of two pieces of semi arch limited blocks I.
In the above-mentioned technical solutions, the end for the column structure 161 of the middle nut being relatively large in diameter and connecting terminal II The position that is in contact of raised limiting section 14 be provided with sealing ring I 100；The stepped end of the stepped cylindrical structure of the middle nut The position that portion 163 is in contact with the end of outer split nut II 17 is provided with sealing ring II 101.Using sealing ring I and sealing ring II Mode, have the advantages that leakproofness is good.
In the above-mentioned technical solutions, it is semicircle, half elliptic, rectangle, triangle that a plurality of water-flowing trough I, which is section, Shape, waveform, square, any one in trapezoidal through slot；Using the structure of above-mentioned a plurality of water-flowing trough I, liquid cooling cable In use, when cable is by external force bending, fluid cross-section product and flow velocity is will not influence, will not influence the normal of coolant liquid Flowing circulation.
In the above-mentioned technical solutions, it is semicircle, half elliptic, rectangle, triangle that a plurality of water-flowing trough II, which is section, Shape, waveform, square, any one in trapezoidal through slot.Using the structure of above-mentioned a plurality of water-flowing trough II, liquid cooling electricity Cable in use, when cable is by external force bending, will not influence fluid cross-section product and flow velocity, will not influence coolant liquid just Often flowing circulation.
In the above-mentioned technical solutions, there are gaps I 36 between the knitted conductor layer and cable endothelium；Using this side Formula can more preferably realize the circulation of coolant liquid.And keep the pressure for being passed through coolant liquid consistent using the gap I, flow velocity is consistent, It ensure that the cooling effect to cable.
In the above-mentioned technical solutions, there are gaps II 37 between the cable endothelium and cable sheath.Using this side Formula can more preferably realize the circulation of coolant liquid.And keep the pressure for being passed through coolant liquid consistent using the gap II, flow velocity is consistent, It ensure that the cooling effect to cable.
In the above-mentioned technical solutions, the cable 3 further include: protective layer 35 is wrapped on cable sheath；Using guarantor Sheath can play a protective role to cable.The protective layer is polyvinyl chloride protective layer, polyethylene protective layer, perfluoroethylene Acryl protective layers, nylon protective layer, any one in polyolefin protective layer；The cable sheath is TPU crust, outside TPE Any one in skin, TPR crust.
In the above-mentioned technical solutions, the Inlet and outlet water connecting terminal can use connecting terminal in the prior art, The connecting terminal with flowering structure can be used:
Wherein, as shown in Figure 15~25, the Inlet and outlet water connecting terminal 2 includes:
Connecting terminal I 21 with accommodating chamber I 20 is provided with the water inlet 22 communicated with accommodating chamber I 20；It is described The exposed copper wire 301 of 3 other end of riveting cable in the accommodating chamber I 20 of connecting terminal I 21；
Interior split nut 23, one end and the outer wall of connecting terminal I 21 are detachably connected, and the other end is set in cable endothelium On the end of 31 other end, and the end of the other end of cable endothelium 31 311 is crimped on the inner wall of interior split nut 23 and is connect Between the outer wall of line terminals I 21；
Outer split nut I 24, is provided with water outlet 25；One end of the outer split nut I 24 is outer with interior split nut 23 Wall is detachably connected, and the other end is set on the end of the other end of cable sheath 32；The water outlet 25 and outer split nut I 24 inside communicates and towards cable endothelium 31；
Tightening hoop II 26 is set on cable endothelium 31 and is located in the end of outer split nut I 24, and the cable The end 321 of the other end of crust 32 is crimped between the outer wall of tightening hoop II 26 and the inner wall of outer split nut I 24；It is described There are water flowing gaps I 27 between II inner wall of tightening hoop and cable endothelium；
The Inlet and outlet water connecting terminal 2 further include: limited block II 28 is arranged in interior split nut 23 and tightening hoop II 26 Between, and the both ends of limited block II 28 are in contact with the end of interior split nut 23 and tightening hoop II 26 respectively；The limited block II 28 are located at the lower section of the water outlet 25 of outer split nut I 24, and there are between water flowing between the limited block II 28 and cable endothelium 31 Gap III 282；Multiple through-holes 283 are evenly arranged on the limited block II 28；
The limited block II is two pieces of semi arch limited blocks II 281, and two pieces of semi arch limited blocks II 281 match shape At cylindrical drum limited block II, cylindrical drum limited block II is set in the outside of cable endothelium；In this way, by limited block II Both ends be limited to the end of interior split nut and tightening hoop II；Make to form water flowing gap III between limited block II and cable endothelium, And be conducive to the installation of structure by the way of two pieces of semi arch limited blocks II, and enable same root cable access simultaneously into Water water route and water outlet water route, and it is mutually isolated, form liquid cooling circulation；
The detachable connection method of the outer wall of one end and connecting terminal I 21 of the interior split nut 23 are as follows: the terminals It is provided with the screw thread 212 to match with interior split nut 23 on the outer wall of son I 21, in this way, there is installation easy to disassemble The advantages of；
The detachable connection method of the outer wall of one end of the outer split nut I 24 and interior split nut 23 are as follows: the internal lock spiral shell It is provided with the screw thread 232 to match with outer split nut I 24 on the outer wall of mother 23, in this way, there is installation easy to disassemble The advantages of；
It is provided with outer conical surface I 211 on the outer wall of the connecting terminal I 21, is arranged on the inner wall of the interior split nut 23 There is the internal conical surface I 231 to match with outer conical surface I 211；The end of the other end of the cable endothelium 31 is crimped on outer circle Between the conical surface I 211 and internal conical surface I 231, in this way, has leakproofness good excellent, and crust can be locked, make line Cable is completely embedded with connector, is easily assembled to；
It is provided with outer conical surface II 261 on the outer wall of the tightening hoop II 26, is set on the inner wall of the outer split nut I 24 It is equipped with the internal conical surface II 241 to match with outer conical surface II；The end of the other end of the cable sheath 32 is crimped on outer circle Between the conical surface II 261 and internal conical surface II 241；In this way, have the advantages that leakproofness is good, and crust can be locked, It is completely embedded cable with connector, is easily assembled to.
Cold joint line terminals are attached with charging gun in above-mentioned technical solution, interior recirculated water, Inlet and outlet water connecting terminal It is connect with charging pile, the water inlet of Inlet and outlet water connecting terminal is connected to the water outlet of cooling water tank by pipeline, and in the pipe Water pump is connected on road, the water outlet of Inlet and outlet water connecting terminal is connected to the water inlet of cooling water tank by pipeline, opens water Pump, is passed through charging gun from the water inlet of Inlet and outlet water connecting terminal for the coolant liquid (insulating oil, transformer oil etc.) in cooling water tank Liquid cooling cable system, coolant liquid enters between a plurality of water-flowing trough II 34, knitted conductor layer and the gap I of cable endothelium, then cold But liquid flows in the accommodating chamber III of interior circulation fluid cold joint line terminals, passes through the end of accommodating chamber III and inner wall and cable endothelium Between water flowing gap II carry out between cable sheath and cable endothelium, coolant liquid is back to Inlet and outlet water by a plurality of water-flowing trough I Connecting terminal, and pass sequentially through the water flowing gap I between II inner wall of tightening hoop and cable endothelium, limited block II and cable endothelium Between water flowing gap III, then flow to going out for Inlet and outlet water connecting terminal by being evenly arranged with multiple through-holes on limited block II The mouth of a river, and flow to cooling water tank from water outlet circulation, realizes the cooling to charging gun cable, in this way, realizes pair Cable efficiently cools, and the structure of the Inlet and outlet water connecting terminal and interior circulation fluid cold joint line terminals used is designed and closed Reason, leakproofness are excellent.
Although the embodiments of the present invention have been disclosed as above, but its institute not only in the description and the implementation Column use, it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can hold It changes places and realizes other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is simultaneously It is not limited to specific details and legend shown and described herein.

Claims (10)

1. a kind of connection structure of charging gun cable and charging gun connecting terminal characterized by comprising
The interior circulation fluid cold joint line terminals being connect with charging gun and the cable being connect with interior circulation fluid cold joint line terminals；
The cable includes: the copper wire of multiply winding, outside the knitted conductor layer, cable endothelium and the cable that are successively wrapped in outside copper wire Skin；A plurality of water-flowing trough I is axially evenly arranged on the inner wall of the cable sheath；It is axial uniform on the inner wall of the cable endothelium It is provided with a plurality of water-flowing trough II；
The interior circulation fluid cold joint line terminals include:
Connecting terminal II, with taper feed liquor end, accommodating chamber II and raised limiting section；Riveting cable in the accommodating chamber II The exposed copper wire of one end；Multiple liquid-passing holes are provided on the inner wall of taper feed liquor end；Taper feed liquor end it is interior There are water flowing gaps II between wall and knitted conductor layer；
Middle nut is stepped cylindrical structure；The inner wall and connecting terminal II for the column structure of the middle nut being relatively large in diameter Outer wall be detachably connected, the raised limiting section of the end of the column structure of the middle nut being relatively large in diameter and connecting terminal II It is in contact；The inner wall of the lesser column structure of diameter is set on cable endothelium, and the end of cable endothelium is crimped on Between the end outer wall of taper feed liquor end and the inner wall of middle nut of connecting terminal II；The column of the middle nut being relatively large in diameter Multiple half slots I are axially provided on the inner wall of shape structure；The inner wall for the column structure of the middle nut being relatively large in diameter and outer Multiple through-holes I are evenly arranged on interlayer between wall；The end for the column structure of the middle nut being relatively large in diameter is provided with Recessed portion I；And the water flowing gap II, multiple liquid-passing holes, multiple half slots I, recessed portion I, multiple through-holes I are in company Logical setting；
Outer split nut II, one end and the outer wall of the lesser column structure of diameter of middle nut are detachably connected, the middle nut The stepped ends of stepped cylindrical structure be in contact with the end of outer split nut II；The other end of the outer split nut II is set in On the end of cable sheath；Multiple half slots II are axially provided on the inner wall of the outer split nut II；The outer split nut II Recessed portion II is provided on the end connecting with middle nut；The recessed portion of multiple through-holes I of the middle nut and outer split nut II II, multiple half slots II are in connection setting；
Tightening hoop I is set on cable endothelium and is located in the end of outer split nut II, and the end quilt of the cable sheath It is crimped between the outer wall of tightening hoop I and the inner wall of outer split nut II；There are logical between I inner wall of tightening hoop and cable endothelium Water space IV；
Limited block I is arranged in outer split nut II and is set on cable endothelium, and limited block I is located at tightening hoop I and middle spiral shell Between mother, the both ends of the limited block I are connected with the end of tightening hoop I and middle nut respectively；In the limited block I and cable There are water flowing gaps V between skin；Multiple through-holes II are evenly arranged on the limited block I；Multiple the half of the outer split nut II Circular groove II, multiple through-holes II of limited block I, water flowing gap V, water flowing gap IV are in connection setting.
2. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described The inner wall for the column structure of middle nut being relatively large in diameter and the outer wall detachable connection method of connecting terminal II are as follows: the terminals The screw thread to match with middle nut is provided on the outer wall of son II；One end of the outer split nut II and the diameter of middle nut are smaller Column structure the mode that is detachably connected of outer wall are as follows: be arranged on the outer wall of the lesser column structure of diameter of the middle nut There is the screw thread to match with outer split nut II.
3. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described The mode that the both ends of limited block I are connected with the end of tightening hoop I and middle nut respectively are as follows: outside the end of the tightening hoop I It is provided with annular groove I on wall, annular groove II is provided on the outer wall of the end of the middle nut, the both ends of the limited block I are set It is equipped with annular protrusion, the annular protrusion at both ends is fastened and connected with annular groove I and annular groove II respectively.
4. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described The end outer wall of the taper feed liquor end of connecting terminal II is provided with outer conical surface III, is provided on the inner wall of the middle nut II The internal conical surface III to match with outer conical surface III；The end of the cable endothelium is crimped on outer conical surface III and internal conical surface III Between.
5. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described It is provided with outer conical surface IV on the outer wall of tightening hoop I, is provided on the inner wall of the outer split nut II and IV phase of outer conical surface The internal conical surface IV matched；The end of one end of the cable sheath is crimped between outer conical surface IV and internal conical surface IV.
6. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described Limited block I is two pieces of semi arch limited blocks I, and two pieces of semi arch limited blocks I match to form cylindrical drum limited block I, cylindrical drum Limited block I is set in the outside of cable endothelium.
7. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described The position that the end for the column structure of middle nut being relatively large in diameter is in contact with the raised limiting section of connecting terminal II is provided with close Seal I；The position that the stepped ends of the stepped cylindrical structure of the middle nut are in contact with the end of outer split nut II is provided with Sealing ring II.
8. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that a plurality of The water-flowing trough I be section be semicircle, half elliptic, rectangle, triangle, waveform, square, in trapezoidal through slot Any one；
The a plurality of water-flowing trough II be section be semicircle, it is half elliptic, rectangle, triangle, waveform, square, trapezoidal Through slot in any one.
9. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that described There are gaps I between knitted conductor layer and cable endothelium；There are gaps II between the cable endothelium and cable sheath.
10. the connection structure of charging gun cable and charging gun connecting terminal as described in claim 1, which is characterized in that institute State cable further include: protective layer is wrapped on cable sheath；The protective layer is polyvinyl chloride protective layer, polyethylene protection Any one in layer, perfluoroethylene-propylene protective layer, nylon protective layer, polyolefin protective layer；The cable sheath is outside TPU Skin, TPE crust, any one in TPR crust.
CN201910610373.3A 2019-07-08 2019-07-08 Connecting structure of cable for charging gun and charging gun binding post Active CN110289513B (en)

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Publication number Priority date Publication date Assignee Title
DE102019132390A1 (en) * 2019-11-28 2021-06-02 Amphenol Tuchel Industrial GmbH Contact arrangement for plug connections, charging plug with cooling device

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CN108899122A (en) * 2018-06-06 2018-11-27 洛阳正奇机械有限公司 A kind of cold type of cooling of string of the dedicated liquid cooling cable DC+ and DC- of direct current 600A charging gun
CN209045234U (en) * 2018-12-11 2019-06-28 安卡机器人电缆（苏州）有限公司 Cable cooler bin
CN209786247U (en) * 2019-07-08 2019-12-13 绵阳旭立辰科技有限公司 Connecting structure of cable for charging gun and charging gun wiring terminal

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JP2012217334A (en) * 2011-03-31 2012-11-08 Furukawa Electric Co Ltd:The Terminal connection part for cryogenic cable
KR20160022093A (en) * 2014-08-19 2016-02-29 허성종 Water cooling type cable for high frequency
CN108538484A (en) * 2018-03-26 2018-09-14 洛阳正奇机械有限公司 A kind of cold liquid cooling cable of the special DC+ of high-power charging pile and DC- strings
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Publication number Priority date Publication date Assignee Title
DE102019132390A1 (en) * 2019-11-28 2021-06-02 Amphenol Tuchel Industrial GmbH Contact arrangement for plug connections, charging plug with cooling device

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