CN108493725A - A kind of arrangements of electric connection for the high-power charging of electric vehicle - Google Patents
A kind of arrangements of electric connection for the high-power charging of electric vehicle Download PDFInfo
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- CN108493725A CN108493725A CN201810191500.6A CN201810191500A CN108493725A CN 108493725 A CN108493725 A CN 108493725A CN 201810191500 A CN201810191500 A CN 201810191500A CN 108493725 A CN108493725 A CN 108493725A
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- charging
- sleeve
- plug
- sealing
- electric vehicle
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
-
- 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
- H01R13/04—Pins or blades for co-operation with sockets
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20327—Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
-
- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a kind of arrangements of electric connections for the high-power charging of electric vehicle, it include the charging plug being connected with the cable of charging pile, the charging socket being arranged on electric vehicle, charging socket is equipped with charging sleeve and control sleeve with spliced eye, charging plug is equipped with charging terminal and control terminal, charging socket is equipped with inlet tube and outlet tube, into, one end of outlet tube is connected with the spliced eye of one of sleeve respectively, into, the other end of outlet tube is then connected on the refrigerant circulation loop of electric automobile air-conditioning system, pumping installations is equipped on inlet tube, the axial cooling hole of perforation end is equipped in charging terminal, transition pipe is equipped between two charging terminals, the both ends of transition pipe are connected with the axial cooling hole of two charging terminals respectively.The general equilibrium cooling of plug and socket can be achieved in the present invention, is advantageously implemented the high-power quick charge of electric vehicle, and overall structure it is simple, convenient for promoting the use of.
Description
Technical field
Arrangements of electric connection when charging the present invention relates to a kind of electric vehicle between vehicle and charging pile, more particularly, to one
Arrangements of electric connection of the kind for the high-power charging of electric vehicle.
Background technology
With the fast development of electric vehicle, the charging pile for electric vehicle charging has also been obtained rapidly universal and has been pushed away
Extensively.Electric vehicle typically mutually inserts a charging plug on charging pile with a charging socket on vehicle in charging
It connects, positive and negative two charging sleeves is equipped on charging socket, positive and negative two charging terminals are equipped on charging plug, when charging is inserted
When head is connected with charging socket, charging terminal is plugged in charging sleeve, to start the battery charging for electric vehicle.Separately
Outside, the control terminal being connected with control line and control sleeve are further respectively had in charging plug and charging socket, to fill
Electric stake adjusts the parameters such as the electric current of charging according to the charged state of Vehicular battery in due course.
Original electric vehicle charges since due to technical limitations, charging current and charge power are smaller, thus
Charging time is long, to seriously limit the development of electric vehicle and promote the use of.The charge power of existing national standard charging pile
Between 40 ~ 60kW, and the electricity of pure electric automobile configures generally between 30 ~ 90kWh in the market, and a fast charge time will tie up
It holds between 30 minutes to 2 hours.Currently, with the development of battery and corresponding rapid nitriding, 350kW's or more is big
Power quick charge is expected to implement, and correspondingly, charging current also will significantly rise.It is known that big charging current can be led
Causing the temperature of charging connecting device to rise, aggravation, charging system thermal losses aggravation, system aging is accelerated, reliability reduces.In fact, existing
Some national standards have no more than 50K the terminal Wen Sheng for undertaking electrical current carriers, and the metal and non-metallic component temperature of attachment device are most
Height must not exceed the rigid requirement of 60 DEG C and 85 DEG C.
In order to meet the requirement of high-power charging, the charging that people invent various temperature when can reduce charging connects
Part.Wherein common mode is cooled down to connector with coolant liquid, for example, one kind is disclosed in Chinese patent literature
" contact pin and charging gun ", publication No. CN107317145A, including plug connector and connector, plug connector is away from plugging direction
One end offers cooling liquid flowing channel and is formed with grafting inner joint in the end face, and plug connector coolant liquid is offered on plug connector and is connect
Mouthful.Connector is equipped with connector coolant connection, crimping hole and connector coolant duct.Plug connector is plugged on connector
Together, connector coolant duct is set in plug connector cooling liquid flowing channel, and connector coolant duct is cooled down with plug connector
Gap runner is formed between liquid flow path wall.Plug connector coolant connection, gap runner, connector coolant duct and connection
Part coolant connection is connected to the runner to form coolant liquid circulation.The heat that contact pin distributes is taken away in the invention by the coolant liquid of circulation
Amount can reduce the temperature of contact pin, and then improve the current-carrying capability of charging gun, it is ensured that the stability and reliability of high-power charging.
However, there are following defects for the above-mentioned charging connector type of cooling：First, which tightly only considers
The cooling problem of charging gun one end on charging pile, but can not efficiently solve the cooling of the charging socket on electric vehicle
Problem.That is, it can not simultaneously cool down the charging gun of charging pile side and the charging socket of vehicle side.Its
Secondary, the device that temperature is controlled with coolant liquid cooling required belongs to the routine techniques selection of technical staff, and does not have in the invention
Body describes how coolant connection the specific technical solution such as connects with external cooling line.In particular, program needs are matched
The cooling device for setting peripheral hardware, to provide corresponding coolant liquid for charging gun, when complexity and use to cause structure not
Just.
Invention content
The purpose of the present invention is to solve be difficult to realize plug present in electric vehicle charging arrangements of electric connection and insert
Cooling, complicated and inconvenient for use problem while seat provides a kind of being electrically connected for the high-power charging of electric vehicle
Connection device, it can be achieved that plug and socket general equilibrium cooling, to be advantageously implemented the high-power quick charge of electric vehicle,
And overall structure is simple, just with promote the use of.
To achieve the goals above, the present invention uses following technical scheme：
A kind of arrangements of electric connection for the high-power charging of electric vehicle includes that the charging being connected with the cable of charging pile is inserted
Head, the charging socket being arranged on electric vehicle, the charging socket include the charging sleeve and control sleeve for having spliced eye,
The charging plug includes charging terminal and control terminal, and the charging socket is equipped with inlet tube and outlet tube, into and out of liquid pipe
One end be connected respectively with the spliced eye of one of sleeve, the other end into and out of liquid pipe is then connected to electric vehicle
On the refrigerant circulation loop of air-conditioning system, it is equipped with pumping installations on inlet tube, is equipped in the charging terminal axial cooling
Hole, is equipped with transition pipe between two charging terminals, and the both ends of transition pipe are cooling with the axial direction of two charging terminals respectively
Hole is connected.
The liquid inlet and outlet being connected with the refrigerant circulation loop of automotive air-conditioning system are arranged in the present invention on charging socket
Pipe.In this way, when charging pile charging plug be inserted into vehicle on charging socket in start for Vehicular charging when, pumping installations opens
Dynamic, to extract refrigerant out from refrigerant circulation loop, refrigerant enters a sleeve of charging socket by inlet tube
In spliced eye, transition pipe is then entered by the axial cooling hole of the charging terminal in the spliced eye, another is entered back into and fills
The axial cooling hole of electric terminal, the system of automotive air-conditioning system is flowed back into finally by the spliced eye and outlet tube of another sleeve
Refrigerant cycle circuit the charging plug and charging socket made while effectively being cooled down to form a cooling circuit.It is special
Be not, the invention using the existing refrigerant of mounted air conditioner system as the heat transfer of cooling system, be conducive to
Simplify structure, reduces cost.In addition, refrigerant after heated can Quick-gasifying, it is known that substance can be absorbed in phase transformation or
Release a large amount of heat, therefore, refrigerant gasification when can absorb a large amount of heat, because and be conducive to improve cooling efficiency,
And accordingly decrease the refrigerant flow exported needed for pumping installations.
Preferably, the end of the charging terminal is equipped with the inlet opening of the inverted conical of the axial cooling hole of perforation, feed liquor
In hole be equipped with the first sealing-plug, in axial cooling hole be equipped with via the first catch and first sealing compression spring, first
Sealing compression spring one end compresses the first sealing-plug, and the other end compresses the first catch；It is equipped in the spliced eye open end of charging sleeve
The necking of cone, necking is interior to be equipped with the second sealing-plug, close equipped with second catch with via and second in spliced eye
Compression spring is sealed, second sealing compression spring one end compresses the second sealing-plug, and the other end compresses the second catch；It is arranged in the end of charging sleeve
One connector sleeve being axially movable, the axis of connector sleeve are equipped with mandril, the periphery at mandril both ends be equipped with it is axial into
Liquid bath is equipped with radial supporting rod between mandril and connector sleeve madial wall, and one end is equipped in connector sleeve and compresses supporting rod, separately
One end compresses the reseting pressuring spring of charging sleeve end.
The charging terminal end set inlet opening of the present invention, the first sealing-plug make feed liquor under the action of the first sealing compression spring
Hole keeps sealing state, and analogously, second in the sleeve sealing compression spring that charges makes the second sealing-plug effectively seal charging sleeve
The necking of spliced eye open end, to make charging terminal and charging sleeve that can keep sealing state when not charging, to avoid
Refrigerant leaks.When charging plug, which is inserted into charging socket, to be started to charge up, charging terminal is inserted into the connection of charging sleeve end
In set, and connector sleeve is pushed to move axially, mandril one end in connector sleeve enters the inlet opening of charging terminal and pushes the at this time
One sealing-plug retreats, and inlet opening is made to open；The other end of mandril then enters in the spliced eye of charging sleeve, and pushes the second sealing
Plug retreats, and spliced eye is made to open, and refrigerant can be formed and be circulated at this time, keeps charging plug in charging and charging socket same
When effectively cooled down.At the end of charging, when we extract charging plug from charging socket, the first sealing compression spring pushes
First sealing-plug resets sealing inlet opening, and the reseting pressuring spring in connector sleeve then pushes connector sleeve axial movement to reset, at the same time,
Second sealing compression spring pushes the second sealing-plug to reset the necking for sealing spliced eye open end.That is, the present invention can charge
When so that refrigerating circuit is automatically turned on, and charge after make cooling circuit self-closed seal, so as to be effectively prevented from refrigeration
Agent leaks.
Preferably, sealing shroud is equipped in the connector sleeve to charge on sleeve, on the outer circumference surface of charging terminal end
Stair-stepping sealed end equipped with diminution, when charging plug is inserted into charging socket, the sealed end is inserted into sealing shroud, to
Sealing is formed between charging terminal and charging sleeve.
Sealing shroud can be used a kind of flexible material of rubber and be made, when charging plug is inserted into charging socket, charging
The sealed end of terminal can be squeezed into sealing shroud, close to form reliable elastic fit between charging terminal and charging sleeve
Envelope.When charging plug is detached with charging socket, sealing sleeve can be easily drawn out from sealing shroud.
Preferably, the charging plug includes integrated ontology made of plastics, two lines being embedded in integrated ontology
The rear end outside of beam connector, harness connector is equipped with the harness crimp rings for connecting cable, and the charging terminal setting exists
The front end of corresponding harness connector, the rear end of the axial direction cooling hole perforation harness connector, transition pipe take the shape of the letter U, transition
The surface of pipeline is equipped with insulating coating, and the both ends of transition pipe are plugged on respectively in the axial cooling hole of two harness connectors,
The harness connector, transition pipe and integrated ontology connect into an entirety by injection molding process.
Insulating coating is arranged on the surface of transition pipe in the present invention, thus can avoid the short circuit between two charging terminals, U
The transition pipe both ends of shape can conveniently insert in the axial cooling hole of two harness connectors, then can be as being molded into
Inserts when type integrated ontology and form an overall structure with integrated ontology, be conducive to improve transition pipe and harness
Leakproofness between connector.In particular, the harness crimp rings being arranged in harness connector rear end can be conveniently by crimping side
Formula connecting cable, and harness crimp rings are embedded in integrated ontology when being molded integrated ontology.
Preferably, the charging socket includes the pedestal for having grafting groove, the rear end for the sleeve that charges is embedded in pedestal
Interior, the front end that charging sleeve is equipped with spliced eye is located in grafting groove, is equipped in the side of charging sleeve rear end for connecting electricity
The harness crimp rings of cable, are plugged on the spliced eye rear end of one of charging sleeve into and out of liquid pipe respectively, the charging sleeve,
Inlet tube, outlet tube, pedestal connect into an entirety by injection molding process.
Harness crimp rings are arranged in the rear end of charging sleeve in the present invention, are crimped with cable to convenient, and then into and out of liquid pipe
It is plugged on the spliced eye rear end of one of charging sleeve respectively.When by Shooting Technique forming pedestal, charging sleeve, feed liquor
Pipe, outlet tube and pedestal form an overall structure, not only improve simplified assembling process, improve production efficiency, and be conducive to carry
The sealing performance of high charge socket.
Preferably, being equipped with the solenoid valve being electrically connected with the battery management system of electric vehicle on outlet tube, work as charging
When plug is inserted into charging socket, the unlatching of solenoid valve；When charging plug extracts charging socket, solenoid valve is closed, going out at this time
Liquid pipe is in blocking.
Solenoid valve is connected with the battery management system of vehicle, it is convenient to according to the charged state of Vehicular battery, temperature
Etc. information control solenoid valve opening and closing, be conducive to improve cooling efficiency, and be effectively prevented from refrigerant and reversely let out by outlet tube
Go out.
Preferably, the refrigerant circulation loop includes a fluid reservoir for storing refrigerant, the fluid reservoir
Internal upper part is gaseous refrigerant, and lower part is the refrigerant of liquid, and the inlet tube is connected to the lower part of fluid reservoir, it is described go out liquid
Pipe is connected to the top of fluid reservoir, and the pumping installations is jet pump, when charging plug is inserted into charging socket, electric vehicle
Battery management system controls jet stream pump startup.
It is known that the refrigerant of air-conditioning easily becomes gaseous state when heated from liquid, for this purpose, the present invention creatively will
Inlet tube is connected to the lower part of fluid reservoir, and outlet tube is then connected to the top of fluid reservoir.In this way, on the one hand facilitating with structure letter
The refrigerant of liquid in fluid reservoir is sent by inlet tube in the cooling circuit of charging socket and charging plug by single jet pump,
On the other hand, the refrigerant of liquid can evaporate rapidly gaseous refrigeration of the expansion formation with certain pressure after absorbing heat
Agent, and by outlet tube quick backflow to fluid reservoir, condensing into liquid after gaseous refrigerant is cooling in fluid reservoir and depositing
The lower part for staying in fluid reservoir, to form cycle.Due to refrigerant be transformed by liquid in gaseous phase transition process can absorb
A large amount of heat, therefore, jet pump need to only generate a smaller refrigerant flow, you can meet charging plug, charging socket
It is cooling require, thus the cooling effect of refrigerant can be played to the maximum extent.
Therefore, the present invention has the advantages that：The general equilibrium cooling that plug and socket can be achieved, to be conducive to
Realize the high-power quick charge of electric vehicle, and overall structure it is simple, just with promote the use of.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of charging plug of the present invention.
Fig. 2 is the A direction views in Fig. 1.
Fig. 3 is a kind of structural schematic diagram of charging socket of the present invention.
Fig. 4 is the B direction views in Fig. 3.
Fig. 5 is the attachment structure schematic diagram of charging plug and charging socket.
Fig. 6 is a kind of structural schematic diagram of charging terminal and charging sleeve.
Fig. 7 is a kind of structural schematic diagram of charging terminal sealed end.
In figure：1, charging plug 11, integrated ontology 12, harness connector 121, harness crimp rings 122, feed liquor
Hole 13, charging terminal 141, axial cooling hole 142, sealed end 143, saw-tooth ring 144, is led at control terminal 14
Enter face 145, retaining face 15, the first sealing-plug 16, the first catch 17, first sealing compression spring 2, charging socket
21, pedestal 211, grafting groove 22, charging sleeve 221, necking 23, control sleeve 24, the second sealing-plug 25
Second compression spring 26, connector sleeve 28, mandril 281, insertion end 29, supporting rod 291, resets pressure at second catch 27
Spring 3, inlet tube 4, outlet tube 5, fluid reservoir 6, transition pipe 7, pumping installations 8, solenoid valve 9, sealing shroud.
Specific implementation mode
The present invention will be further described with specific implementation mode below in conjunction with the accompanying drawings.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of arrangements of electric connection for the high-power charging of electric vehicle, including with
Charging plug 1 that the cable of charging pile is connected, the charging socket 2 being arranged on electric vehicle.It assembles, fills for the ease of processing
The two harness connectors 12 and several control terminals 13 that plug includes integrated ontology 11, is embedded in integrated ontology, online
Harness crimp rings 121 of the setting for connecting cable, the positive and negative anodes charging cable of charging pile pass through on the outside of the rear end of beam connector
Compression joint technique is crimped on respectively in the harness crimp rings of two harness connectors.In the front end of harness connector setting cylinder
Charging terminal 14, to constitute the charging terminal of a positive charging terminal and a cathode；Correspondingly, charging socket includes
Pedestal 21 with grafting groove 211 is embedded with the charging sleeve 22 of anode and cathode and several in the grafting groove of pedestal
Control sleeve 23 corresponding with control terminal, charging sleeve and control sleeve all have spliced eye.The front end of charging sleeve is located at
In grafting groove, harness crimp rings are set in the side of charging sleeve rear end, the cable being connected with Vehicular battery passes through crimping
Technique is crimped on respectively in the harness crimp rings of two charging sleeves, to constitute a positive charging sleeve and a cathode
Charging sleeve.As shown in figure 5, when charging, charging plug is plugged in together with charging socket, and control terminal at this time is plugged on
On corresponding control sleeve, to make the controller of charging pile can control entire charging process and state.
For the ease of the cooling of charging plug and charging sleeve in charging, we can charge the slotting of sleeve rear end at one
Connect piece inlet tube 3 of grafting in hole, piece outlet tube 4 of grafting in the spliced eye of another charging sleeve rear end, inlet tube and
The other end of outlet tube is then connected on the refrigerant circulation loop of electric automobile air-conditioning system.Refrigerant circulation loop packet
A fluid reservoir 5 for storing refrigerant is included, fluid reservoir internal upper part is gaseous refrigerant, and lower part is the refrigerant of liquid.
In addition, being coaxially disposed axial cooling hole 141 in charging terminal, the rear end of axial cooling hole extends and penetrates through harness connector
Rear end.The both ends of the transition pipe 6 of one U-shaped are plugged on respectively in the axial cooling hole of two harness connectors.
When charging pile charging plug be inserted into vehicle on charging socket in start for Vehicular charging when, the air-conditioning system of vehicle
Refrigerant in the refrigerant circulation loop of system is entered by inlet tube in the spliced eye of a sleeve of charging socket, is then led to
The axial cooling hole for the charging terminal crossed in the spliced eye enters transition pipe, and the axial direction for entering back into another charging terminal is cooling
Hole is flowed back into finally by the spliced eye and outlet tube of another sleeve in the refrigerant circulation loop of automotive air-conditioning system,
To form a cooling circuit, the charging plug and charging socket made while effectively being cooled down.
It should be noted that one end close to charging socket when being plugged in together is known as charging plug in the present embodiment
Front end connect one end with the charging cable of charging pile and is known as rear end；Correspondingly, one end on charging socket close to charging plug claims
For front end, the other end is known as rear end.In addition, the axial direction of charging terminal is known as longitudinal direction, the side of charging terminal axial direction will be perpendicular to
It is lateral to being known as.
In order to ensure flowing of the refrigerant in cooling circuit, pumping installations 7 can be arranged in we on inlet tube.Work as pumping
When device starts, you can extract refrigerant out from refrigerant circulation loop.Preferably, jet pump, jet stream can be used in pumping installations
Pump is electrically connected with Vehicular battery management system.And inlet tube is connected to the lower part of fluid reservoir, outlet tube is then connected to fluid reservoir
Top.When charging plug be inserted into charging socket start for Vehicular charging when, battery management system makes jet stream pump startup, you can from storage
The refrigerant of extraction liquid in flow container.The refrigerant of liquid absorbs heat when flowing through charging socket and charging plug, then fast
Speed evaporation expansion forms the gaseous refrigerant with certain pressure, and by outlet tube quick backflow to fluid reservoir, gaseous state
Refrigerant condense into liquid after cooling in fluid reservoir and remain in the lower part of fluid reservoir, to form following for refrigerant
Circulation is dynamic.
In order to avoid refrigerant is reversely released from outlet tube, the solenoid valve 8 of closed type can be arranged in we on outlet tube, electricity
Magnet valve is electrically connected with battery management system.In this way, when charging plug is inserted into charging socket and starts to charge up, battery management system is
The unlatching of controllable solenoid valve；When charging plug extracts charging socket, battery management system is the closing of controllable solenoid valve,
Outlet tube at this time is in blocking.
It is understood that the temperature sensing member being electrically connected with battery management system can be arranged in we on charging socket
Part.In this way, after starting to charge up, when the temperature rise of charging plug to setting value, battery management system can be according to reception
The electric signal of the temperature-sensing element arrived opens jet pump and solenoid valve, you can ensures that charging plug and charging socket work always
In defined temperature range, and the efficiency of cooling system can be improved.
In order to facilitate processing, pedestal of the invention can be used plastics and be made, in pedestal injection molding, charging sleeve, into
Liquid pipe, outlet tube can be used as inserts and pedestal connects into an entirety, be conducive to the sealing performance for improving charging socket.It is similar
As, integrated ontology can be used plastics and be made, and in integrated ontology injection molding, cable first can be crimped on harness connection by us
In the harness crimp rings of head, then the both ends of transition pipe are plugged in the axial cooling hole of corresponding harness connector, then
The harness connector to link together and transition pipe are connected into an entirety as inserts and integrated ontology, are conducive to carry
Leakproofness between high transition pipe and harness connector.
In order to avoid refrigerant leaks when charging, as shown in fig. 6, we can coaxially pass through in the end set of charging terminal
For axis to the inlet opening 122 of cooling hole, inlet opening is the small inner big inverted conical of mouth, and the first of cone is arranged in inlet opening
Sealing-plug 15, is arranged the first catch 16 and first sealing compression spring 17 in axial cooling hole, and the setting of first gear on piece is permissible
The via that refrigerant flows through, first sealing compression spring one end compress the first sealing-plug, and the other end compresses the first catch, to make first
Sealing-plug fits in inlet opening, and charging terminal at this time is in sealing state.Analogously, we can be in charging sleeve front end
Spliced eye open end setting inverted conical necking 221, the second sealing-plug 24 of setting cone in necking, in spliced eye
Second catch 26 and second sealing compression spring 25 is set, and the setting of second gear on piece allows the via that refrigerant flows through, and second is close
Envelope compression spring one end compresses the second sealing-plug, and the other end compresses the second catch, to make the second sealing-plug fit in necking, at this time
Charging sleeve be in sealing state.In addition, we need to also be arranged a company being axially movable in the front end of charging sleeve
Female connector 27, mandril 28 is coaxially disposed in connector sleeve, and insertion end 281, the insertion end circumference at mandril both ends is arranged in the both ends of mandril
Axial lead channel is set on face.Be wholely set between mandril and connector sleeve madial wall 3-4 root diameters to supporting rod 29, support
Bar equidistantly distributed in a ring, to make mandril, supporting rod, connector sleeve form an entirety.In addition, one is arranged in connector sleeve
A reseting pressuring spring 291, one end of reseting pressuring spring compresses supporting rod, the other end compresses the front end of charging sleeve, to make connection
Set is in the releasing position far from charging sleeve.Certainly, axial limiting knot can be arranged between connector sleeve and charging sleeve in we
Structure is deviate from from charging sleeve to avoid connector sleeve, and sealing ring is arranged between connector sleeve and charging sleeve, to realize connection
Sealing between set and charging sleeve.
When charging plug, which is inserted into charging socket, to be started to charge up, charging terminal is first inserted into the connector sleeve of charging sleeve end
It is interior, and connector sleeve is pushed to move axially, the insertion end of mandril one end in connector sleeve enters the inlet opening of charging terminal simultaneously at this time
It pushes the first sealing-plug to retreat, inlet opening is made to open；The insertion end of the mandril other end then enters in the necking of charging sleeve, and pushes away
Dynamic second sealing-plug retreats, and spliced eye is made to open, and refrigerant can be formed and be circulated at this time, make charging plug in charging and
Charging socket is effectively cooled down simultaneously, and connector sleeve is then in close to the operating position of charging sleeve.At the end of charging, when
When we extract charging plug from charging socket, the first sealing compression spring pushes the first sealing-plug to reset, and so that inlet opening is obtained close
It seals, the reseting pressuring spring in connector sleeve then pushes connector sleeve to move axially to releasing position, and at the same time, the second sealing compression spring pushes
Second sealing-plug resets, and the necking of spliced eye open end is made to be sealed.That is, the present invention can be such that refrigeration returns in charging
Road automatically turns on, and seals cooling circuit self-closed after charging, and so as to be effectively prevented from charging terminal, charging is inserted
Remaining refrigerant leaks in set.
In order to improve sealing effect, sealing shroud 9 made of rubber can be also arranged in we in the female connector of charging sleeve, filling
The stair-stepping sealed end 142 of diminution is set on the outer circumference surface of electric terminal front end, and is set on the outer edge of sealed end
Set chamfering or fillet.When charging plug is inserted into charging socket, sealed end is smoothly inserted into sealing shroud, in charging terminal
Sealing is formed between charging sleeve.
Further, as shown in fig. 7, equidistant in the axial direction point of three circles can be also arranged in we on the periphery of sealed end
The saw-tooth ring 143 of cloth, there are one the approaching faces 144 of the cone close to sealing sleeve front end and one to lean on for saw-tooth ring tool
The retaining face 145 of the cone of nearly charging terminal, to make the cross section of saw-tooth ring triangle at an acute angle, and the cone of approaching face
Degree is preferably 1:1.86 to 1:Between 1.54, the taper in retaining face is preferably 1:0.134 to 1:Between 0.088, a side
Face is conducive to seal in sleeve insertion sealing shroud, while being conducive to improve the sealing effect between sealing sleeve and sealing shroud.
Finally, we can also spray one layer of insulating coating on the inside and outside side wall of transition pipe by workmanship of spraying plastics, to
The short circuit problem that can be effectively prevented between two charging terminals.
Claims (7)
1. a kind of arrangements of electric connection for the high-power charging of electric vehicle includes the charging being connected with the cable of charging pile
Plug, the charging socket being arranged on electric vehicle, the charging socket include that there is the charging sleeve of spliced eye and control to insert
Set, the charging plug includes charging terminal and control terminal, characterized in that the charging socket is equipped with inlet tube and goes out liquid
Pipe, is connected with the spliced eye of one of sleeve, the other end into and out of liquid pipe then connects respectively respectively into and out of one end of liquid pipe
It is connected on the refrigerant circulation loop of electric automobile air-conditioning system, pumping installations is equipped on inlet tube, in the charging terminal
Equipped with axial cooling hole, be equipped with transition pipe between two charging terminals, the both ends of transition pipe respectively with two charging ends
The axial cooling hole of son is connected.
2. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that institute
The end for stating charging terminal is equipped with the inlet opening for the inverted conical for penetrating through axial cooling hole, and the first sealing-plug is equipped in inlet opening,
The first catch and the first sealing compression spring with via are equipped in axial cooling hole, first sealing compression spring one end compresses first
Sealing-plug, the other end compress the first catch；It is equipped with the necking of inverted conical in the spliced eye open end of charging sleeve, is set in necking
There is the second sealing-plug, the second catch and the second sealing compression spring with via, the second sealing compression spring one are equipped in spliced eye
End compresses the second sealing-plug, and the other end compresses the second catch；It is arranged a connection being axially movable in the end of charging sleeve
The axis of set, connector sleeve is equipped with mandril, and the periphery at mandril both ends is equipped with axial lead channel, in mandril and connector sleeve
It is equipped with radial supporting rod between side wall, compresses supporting rod equipped with one end in connector sleeve, the other end compresses charging sleeve end
Reseting pressuring spring.
3. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that
It is equipped with sealing shroud in the connector sleeve to charge on sleeve, the stair-stepping close of diminution is equipped on the outer circumference surface of charging terminal end
Sealing end, when charging plug is inserted into charging socket, the sealed end is inserted into sealing shroud, in charging terminal and charging sleeve
Between formed sealing.
4. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that institute
State charging plug include integrated ontology made of plastics, two harness connectors being embedded in integrated ontology, harness connector
Rear end on the outside of be equipped with harness crimp rings for connecting cable, the charging terminal is arranged before corresponding harness connector
End, the rear end of the axial direction cooling hole perforation harness connector, transition pipe take the shape of the letter U, and the surface of transition pipe is equipped with insulation and applies
Layer, the both ends of transition pipe are plugged on respectively in the axial cooling hole of two harness connectors, the harness connector, coupling tube
Road connects into an entirety with integrated ontology by injection molding process.
5. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that institute
It includes the pedestal for having grafting groove to state charging socket, and the rear end for the sleeve that charges is embedded in pedestal, and charging sleeve is equipped with grafting
The front end in hole is located in grafting groove, and the harness crimp rings for connecting cable are equipped in the side of charging sleeve rear end, into and out of
Liquid pipe is plugged on the spliced eye rear end of one of charging sleeve respectively, and the charging sleeve, inlet tube, outlet tube, pedestal are logical
It crosses injection molding process and connects into an entirety.
6. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that
Outlet tube is equipped with the solenoid valve being electrically connected with the battery management system of electric vehicle, when charging plug is inserted into charging socket,
The unlatching of solenoid valve；When charging plug extracts charging socket, solenoid valve is closed, and outlet tube at this time is in blocking.
7. a kind of arrangements of electric connection for the high-power charging of electric vehicle according to claim 1, characterized in that institute
It includes a fluid reservoir for storing refrigerant to state refrigerant circulation loop, and the fluid reservoir internal upper part is gaseous refrigeration
Agent, lower part are the refrigerant of liquid, and the inlet tube is connected to the lower part of fluid reservoir, and the outlet tube is connected to the upper of fluid reservoir
Portion, the pumping installations are jet pump, and when charging plug is inserted into charging socket, the battery management system control of electric vehicle is penetrated
Flow pump startup.
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| CN201810191500.6A CN108493725B (en) | 2018-03-08 | 2018-03-08 | A kind of arrangements of electric connection for the high-power charging of electric car |
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| CN201810191500.6A CN108493725B (en) | 2018-03-08 | 2018-03-08 | A kind of arrangements of electric connection for the high-power charging of electric car |
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| CN108493725A true CN108493725A (en) | 2018-09-04 |
| CN108493725B CN108493725B (en) | 2019-07-23 |
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| CN201810191500.6A Active CN108493725B (en) | 2018-03-08 | 2018-03-08 | A kind of arrangements of electric connection for the high-power charging of electric car |
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| CN109638507A (en) * | 2018-11-20 | 2019-04-16 | 西安电子科技大学芜湖研究院 | A kind of kilo-ampere grade heavy-duty connector |
| CN110534940A (en) * | 2019-09-04 | 2019-12-03 | 苏州华旃航天电器有限公司 | A kind of high current connector with temperature control device |
| CN111725655A (en) * | 2019-03-22 | 2020-09-29 | 泰连公司 | Terminal heat exchanger for electric connector |
| CN113285311A (en) * | 2021-05-24 | 2021-08-20 | 北京辉程动力科技有限公司 | Power battery charging and power supply and cooling pipeline quick connecting device |
| CN114072309A (en) * | 2019-06-05 | 2022-02-18 | 泰连服务有限公司 | Heat exchanger for power supply connector |
| CN114899634A (en) * | 2022-07-13 | 2022-08-12 | 深圳永贵技术有限公司 | Terminal liquid cooling structure of high-power connector |
| WO2023202857A1 (en) * | 2022-04-20 | 2023-10-26 | Auto-Kabel Management Gmbh | Bimettalic connector for charging cables, for high voltage applications |
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| CN113285311A (en) * | 2021-05-24 | 2021-08-20 | 北京辉程动力科技有限公司 | Power battery charging and power supply and cooling pipeline quick connecting device |
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