CN113035438B - High-power charging cable for charging new energy automobile and use method - Google Patents
High-power charging cable for charging new energy automobile and use method Download PDFInfo
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- CN113035438B CN113035438B CN202110272287.3A CN202110272287A CN113035438B CN 113035438 B CN113035438 B CN 113035438B CN 202110272287 A CN202110272287 A CN 202110272287A CN 113035438 B CN113035438 B CN 113035438B
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- 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
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- 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
- B60L53/18—Cables specially adapted for charging electric vehicles
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- 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
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- 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
- H01B7/0045—Cable-harnesses
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- 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
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- 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
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- 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
Abstract
The invention relates to the technical field of power equipment, and provides a high-power charging cable for charging a new energy automobile and a use method thereof, wherein the high-power charging cable comprises an outer sheath; the liquid cooling wire cores are arranged in the outer sheath and comprise at least two liquid cooling wire cores; the auxiliary wire core is arranged in the outer sheath, and two ends of the auxiliary wire core are respectively connected with the charging pile and the charging gun; the temperature measuring device is arranged in the outer sheath; switching device, liquid cooling sinle silk one end is connected with the rifle that charges, and the other end passes through switching device and fills electric pile and be connected, and the liquid cooling sinle silk is parallelly connected with supplementary sinle silk, and switching device includes: the switching disc is rotatably arranged on the wire connecting ring, a second electrode is arranged on the switching disc, the second electrode is used for being connected with the first electrode, and the second electrode is connected to the charging pile; and the motor drives the switching disc to rotate. Through above-mentioned technical scheme, a safe, high-efficient, portable new energy automobile cable for charging.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a high-power charging cable for charging a new energy automobile and a using method thereof.
Background
With the development of society, people's environmental awareness is improved, new energy vehicles have been favored by more and more consumers, and the importance of charging accessories related to the new energy vehicles is gradually highlighted. As is well known, the main factors influencing the popularization of new energy pure electric vehicles (hereinafter referred to as electric vehicles) at present are mileage anxiety and charging anxiety. With the continuous breakthrough of the power battery technology, the endurance mileage of the electric automobile is gradually improved. The automobile is improved from the initial 150km to 400km, and the mileage anxiety of the electric automobile is basically solved. Meanwhile, charging becomes a main technical problem, domestic new energy electric vehicles which can continue a journey for 400km generally need 2-3 h when being charged to 80% of rated electric quantity quickly, and need more than 12h when being charged slowly, so that the experience of users is greatly influenced.
In the wire and cable industry, a common practice for increasing power and increasing current carrying capacity is to increase the conductor cross-sectional area of the cable. To filling the electric pile cable, because can frequently pull the removal in the use, consequently realize the big current-carrying of high-power through increasing the conductor sectional area, can cause to fill electric pile cable too heavy, and the pliability variation, bring inconvenience when charging for the user, hinder electric automobile's popularization process, a cable that can be applicable to high-power scene of charging has important meaning to the popularization of following new energy automobile.
Disclosure of Invention
The invention provides a high-power charging cable for charging a new energy automobile and a use method thereof, and provides a safe, efficient and portable cable for charging the new energy automobile.
The technical scheme of the invention is as follows:
the utility model provides a new energy automobile charges with high-power charging cable for the connection fills electric pile and rifle that charges, includes:
an outer sheath;
the liquid cooling wire cores are arranged in the outer sheath and comprise at least two liquid cooling wire cores;
the auxiliary wire core is arranged in the outer sheath, and two ends of the auxiliary wire core are respectively connected with the charging pile and the charging gun;
the temperature measuring device is arranged in the outer sheath;
switching device, liquid cooling sinle silk one end is connected with the rifle that charges, and the other end passes through switching device and is connected with filling electric pile, the liquid cooling sinle silk with supplementary sinle silk is parallelly connected, switching device includes:
a wire connection ring, on which a plurality of first electrodes are provided corresponding to the liquid cooling wire cores,
the switching disc is rotatably arranged on the wiring ring, a second electrode is arranged on the switching disc, the second electrode is used for being connected with the first electrode, and the second electrode is connected to a charging pile;
and the motor drives the switching disc to rotate.
Further, the liquid cooling sinle silk includes:
the cross section of the cable conductor is annular, and an annular cavity of the cable conductor forms an inner liquid flow channel along the length direction of the cable conductor;
the liquid cooling pipe is arranged around the periphery of the cable conductor, and an outer liquid flow channel is formed between the inner wall of the liquid cooling pipe and the outer wall of the cable conductor;
the two ends of the cable conductor are connected with the wiring terminals which are respectively used for connecting the charging pile and the charging gun, the wiring terminals are provided with liquid cooling ports, and the inner liquid flow channel is communicated with the outer liquid flow channel through the liquid cooling ports.
Further, the connection terminal includes:
the terminal shell is provided with a first cavity with one open end, the liquid cooling port is arranged on the terminal shell, and the liquid cooling port is communicated with the first cavity;
the terminal inner core is sequentially provided with a second cavity, a first annular cavity and a second annular cavity from inside to outside, one end of each of the first annular cavity and the second annular cavity is open, two ends of the second cavity are communicated, and a liquid flow port is arranged between the first annular cavity and the second annular cavity and communicated with the first annular cavity and the second annular cavity;
the terminal inner core is sleeved on the cable conductor, so that the second cavity is communicated with the inner liquid flow channel;
the terminal inner core is inserted into the first cavity, and the first cavity is used for separating the open ends of the first annular cavity and the second annular cavity.
Further, the terminal shell is inserted between the terminal inner core and the liquid cooling pipe, a plurality of transition channels are arranged on the terminal shell and used for communicating the outer liquid flow channel with the first cavity, and one-way valves are arranged in the transition channels.
Furthermore, the terminal inner core is provided with an annular partition plate for dividing the first annular cavity and the second annular cavity, the liquid flow ports are arranged on the annular partition plate along the circumferential direction, an annular groove matched with the annular partition plate is arranged at the bottom of the first cavity, and the first annular cavity and the second annular cavity are separated through insertion matching.
Further, binding post still includes lock nut, the terminal shell with the outer wall of liquid cooling pipe all is equipped with the screw thread, lock nut with the terminal shell with liquid cooling pipe threaded connection.
Further, the liquid cooling outside of tubes is equipped with the insulating layer, still be equipped with the cooling tube in the outer jacket, the one end of cooling tube and the binding post intercommunication of liquid cooling sinle silk one end, the other end pass through cooling device with the binding post intercommunication of the liquid cooling sinle silk other end.
Further, the inner wall of the wiring ring is provided with a plurality of grooves, the first electrodes are arranged in the grooves, the switching disc is provided with rotating arms through torsion springs, the end portions of the rotating arms are provided with the second electrodes, and the second electrodes are in contact with the inner wall of the wiring ring.
The use method of the charging cable comprises the following steps:
s10: setting a set temperature T of the switching liquid cooling wire core and a set power W of the switching liquid cooling wire core;
s20: when the temperature of the liquid cooling wire core is more than or equal to T, controlling the charging power of the liquid cooling wire core to start to decrease;
s30: when the charging power of the liquid cooling wire cores is less than or equal to W, the motor acts to drive the switching disc to rotate and switch the working liquid cooling wire cores;
s40: after the liquid cooling sinle silk switches over the completion, promote liquid cooling sinle silk charging power.
The working principle and the beneficial effects of the invention are as follows:
when charging, charging cable's temperature can rise gradually, for guaranteeing that charging cable can adapt to the characteristics of high-power charging, adopt the liquid cooling sinle silk as the main sinle silk that charges, use the liquid cooling to cool down the sinle silk, the cooling effect is better, and the temperature at the liquid cooling sinle silk of work promotes behind the settlement temperature, auto-change over device will switch over the liquid cooling sinle silk of work, the liquid cooling sinle silk that makes overheated work can carry out rapid cooling, the mode through the liquid cooling sinle silk of switching work can guarantee that the temperature of liquid cooling sinle silk can not rise too high, be applicable to the scene of high-power charging, charging process is safer, long service life is longer.
The auxiliary wire core is always conducted in the charging process, so that the charging process can not be interrupted due to the fact that the working liquid cooling wire core is switched in the charging process, and adverse effects are generated on the battery.
The temperature measuring device is used for monitoring the temperature of the liquid cooling wire cores, the temperature sensor can be adopted, after the temperature of the liquid cooling wire cores working at present is higher than a set value, the motor drives the switching disc to rotate, the second motor is connected with the first electrode connected with other liquid cooling wire cores, the switching of the liquid cooling wire cores working is achieved, and the switching device is arranged at one end connected with the charging pile, so that the dragging of a cable cannot be influenced.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a cross-sectional view of a charging cable;
FIG. 2 is a cross-sectional view of a liquid cooled core;
FIG. 3 is a schematic structural diagram of a switching device;
in the figure: 1. the outer sheath, 2, the liquid cooling wire core, 21, the cable conductor, 22, the liquid cooling pipe, 23, the wiring terminal, 231, the terminal shell, 2311, the first cavity, 2312, the transition channel, 2313, the one-way valve, 2314, the liquid cooling port, 2315, the annular groove, 232, the terminal inner core, 2321, the second cavity, 2322, the first annular cavity, 2323, the second annular cavity, 2324, the annular partition plate, 2325, the liquid flow port, 233, the locking nut, 24, the inner liquid flow channel, 25, the outer liquid flow channel, 26, the heat insulation layer, 3, the auxiliary wire core, 4, the temperature measuring device, 5, the switching device, 51, the wiring ring, 511, the groove, 52, the switching disc, 53, the rotating arm, 54, the first electrode, 55, the second electrode, 6 and the cooling pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1 to 3, the present embodiment proposes
The utility model provides a new energy automobile charges with high-power charging cable for the connection fills electric pile and rifle that charges, includes:
an outer sheath 1;
the liquid cooling wire core 2 is arranged in the outer sheath 1 and comprises at least two liquid cooling wire cores;
the auxiliary wire core 3 is arranged in the outer sheath 1, and two ends of the auxiliary wire core are respectively connected with the charging pile and the charging gun;
the temperature measuring device 4 is arranged in the outer sheath 1;
switching device 5, 2 one ends of liquid cooling sinle silk are connected with the rifle that charges, and the other end passes through switching device 5 and is connected with charging pile, and liquid cooling sinle silk 2 is parallelly connected with supplementary sinle silk 3, and switching device 5 includes:
a bonding ring 51, a plurality of first electrodes 54 are provided on the bonding ring 51 corresponding to the liquid-cooled core 2,
the switching disc 52 is rotatably arranged on the wiring ring 51, a second electrode 55 is arranged on the switching disc 52, the second electrode 55 is used for being connected with the first electrode 54, and the second electrode 55 is connected to the charging pile;
and a motor for driving the switching disk 52 to rotate.
When charging, charging cable's temperature can rise gradually, for guaranteeing that charging cable can adapt to the characteristics of high-power charging, adopt liquid cooling sinle silk 2 as the main sinle silk that charges, use the liquid cooling to cool down the sinle silk, the cooling effect is better, and after the temperature of the liquid cooling sinle silk 2 of work promoted the settlement temperature, auto-change over device 5 will switch over the liquid cooling sinle silk 2 of work, the liquid cooling sinle silk 2 that makes overheated work can carry out rapid cooling, the temperature that can guarantee liquid cooling sinle silk 2 through the mode of the liquid cooling sinle silk 2 of switching work can not rise too high, be applicable to the scene of high-power charging, charging process is safer, long service life is longer.
The auxiliary wire core 3 is always conducted in the charging process, so that the charging process can not be interrupted due to the switching of the working liquid cooling wire core 2 in the charging process, and the battery is not adversely affected.
Temperature measuring device 4 is used for monitoring the temperature of liquid cooling sinle silk 2, can adopt temperature sensor, and after the temperature of the liquid cooling sinle silk 2 of current work is higher than the setting value, motor drive switches dish 52 and rotates, makes the second motor be connected with the first electrode 54 that other liquid cooling sinle silks 2 are connected, realizes the switching of the liquid cooling sinle silk 2 of work to switching device 5 sets up in the one end of being connected with charging pile, can not influence pulling of cable.
Liquid cooling sinle silk 2 includes:
the cable conductor 21, the cross section of the cable conductor 21 is annular, its annular cavity forms the inner flow channel 24 along the length direction of the cable conductor 21;
the liquid cooling pipe 22 is arranged around the periphery of the cable conductor 21, and an outer liquid flow channel 25 is formed between the inner wall of the liquid cooling pipe 22 and the outer wall of the cable conductor 21;
Adopt the cross-section to be annular cable conductor 21, and use liquid cooling pipe 22 to enclose the periphery of establishing at cable conductor 21, liquid flow channel 24 and outer liquid flow channel 25 in forming respectively inside and outside cable conductor 21, through let in the coolant liquid respectively in liquid flow channel 24 and outer liquid flow channel 25 including, the inside and outside cooling simultaneously of cable conductor 21, promotion cooling effect that can be very big, reduce the temperature rise at charging in-process cable conductor 21, increase the conductor current-carrying, the cable that charges is whole lighter simultaneously, and convenient to use, it is applicable in powerful scene of charging, promote the charging speed, the security of charging is improved.
The connection terminal 23 includes:
the terminal shell 231 is provided with a first cavity 2311 with one end open, the liquid cooling port 2314 is arranged on the terminal shell 231, and the liquid cooling port 2314 is communicated with the first cavity 2311;
the terminal inner core 232 is sequentially provided with a second cavity 2321, a first annular cavity 2322 and a second annular cavity 2323 from inside to outside, the uniform ends of the first annular cavity 2322 and the second annular cavity 2323 are open, the two ends of the second cavity 2321 are communicated, and a liquid flow port 2325 is formed between the first annular cavity 2322 and the second annular cavity 2323 and is communicated;
the terminal inner core 232 is sleeved on the cable conductor 21, so that the second cavity 2321 is communicated with the inner liquid flow channel 24;
the terminal core 232 is inserted into the first cavity 2311 to block the first annular cavity 2322 from the open end of the second annular cavity 2323 by means of the first cavity 2311.
Through the cooperation of the terminal outer shell 231 and the terminal inner core 232, and the cable conductor 21 and the liquid cooling tube 22, a channel for the circulation of cooling liquid is formed inside the connection terminal 23, specifically, the terminal inner core 232 is sleeved on the cable conductor 21 and inserted into the first cavity 2311 of the terminal outer shell 231, so that the inner flow channel 24, the second cavity 2321, the first annular cavity 2322, the second annular cavity 2323 and the gap formed by the terminal inner core 232 and the side wall of the first cavity 2311 are sequentially communicated to form a continuous flow channel, the cooling liquid introduced from the inner flow channel 24 enters the second cavity 2321 through the opening at one end of the second cavity 2321, then enters the first annular cavity 2322 through the opening at the other end of the second cavity 2321, then enters the second annular cavity 2323 through the flow port 2325, then enters the gap formed by the terminal inner core 232 and the side wall of the first cavity 2311 through the opening of the second annular cavity 2323, and then flows out through the liquid cooling port 2314, through the structure, the cooling liquid can circulate in the wiring terminal 23 and can cover most of the positions of the wiring terminal 23, so that the wiring terminal 23 is effectively cooled, the cooling liquid is safer, the service life of the wiring terminal 23 can be prolonged, and the maintenance cost is reduced.
The terminal shell 231 is inserted between the terminal inner core 232 and the liquid cooling pipe 22, a plurality of transition passages 2312 are arranged on the terminal shell 231, the transition passages 2312 are used for communicating the outer liquid flow passage 25 with the first cavity 2311, and one-way valves 2313 are arranged in the transition passages 2312.
The terminal shell 231 is inserted between the terminal inner core 232 and the liquid cooling pipe 22, the plurality of transition passages 2312 are formed to enable the outer liquid flow passage 25 to be communicated with the first cavity 2311, cooling liquid introduced into the outer liquid flow passage 25 can enter the first cavity 2311 through the passage transition passages 2312 and flow out through the liquid cooling ports 2314, the cooling liquid flows into the outer liquid flow passage 25 from the wiring terminal 23 at the other end after being cooled, cooling liquid circulation is achieved, the one-way valve 2313 is arranged in the transition passages 2312 to prevent the cooling liquid from flowing reversely, the cooling effect is affected, the directions of the one-way valves 2313 on the wiring terminals 23 at the two ends of the cable conductor 21 are opposite, and the cooling liquid can be guaranteed to circulate.
The terminal inner core 232 is provided with an annular partition plate 2324 for dividing the first annular cavity 2322 and the second annular cavity 2323, the liquid flow ports 2325 are multiple and are circumferentially arranged on the annular partition plate 2324, the bottom of the first cavity 2311 is provided with an annular groove 2315 matched with the annular partition plate 2324, and the first annular cavity 2322 and the second annular cavity 2323 are divided through plugging and matching.
Through the insertion fit of the annular partition plate 2324 and the annular groove 2315, on one hand, the first annular cavity 2322 and the second annular cavity 2323 are isolated, and on the other hand, the installation of the terminal inner core 232 and the terminal outer shell 231 is limited, so that the installation and the fit are convenient; the liquid flow ports 2325 are disposed at a position far away from the open ends of the first annular cavity 2322 and the second annular cavity 2323, so that the cooling liquid can fill all cavities during cooling, and uniform cooling is ensured.
The connection terminal 23 further comprises a locking nut 233, the outer walls of the terminal shell 231 and the liquid cooling pipe 22 are provided with threads, and the locking nut 233 is in threaded connection with the terminal shell 231 and the liquid cooling pipe 22.
The terminal housing 231 is connected with the liquid cooling pipe 22 through the locking nut 233, so that the connection stability is ensured.
The outside of liquid cooling pipe 22 is equipped with insulating layer 26, still is equipped with cooling tube 6 in the oversheath 1, and the one end of cooling tube 6 and the binding post 23 intercommunication of 2 one ends of liquid cooling sinle silk, the other end passes through cooling device and the binding post 23 intercommunication of the 2 other ends of liquid cooling sinle silk.
Set up insulating layer 26 in the liquid cooling pipe 22 outside, avoid in the heat directly scatters oversheath 1, avoid producing the influence to other cables, the coolant liquid circulates to cooling device through cooling tube 6, carries out circulative cooling again after the cooling, guarantees the cooling effect.
The inner wall of the wiring ring 51 is provided with a plurality of grooves 511, a first electrode 54 is arranged in each groove 511, the switching disc 52 is provided with a rotating arm 53 through a torsion spring, the end part of the rotating arm 53 is provided with a second electrode 55, and the second electrode 55 is contacted with the inner wall of the wiring ring 51.
The rotating arm 53 is arranged on the switching disc 52 through a torsion spring, and the second electrode 55 at the end part of the rotating arm is pressed on the inner wall of the wire connecting ring 51 under the action of the torsion spring, so that the rotating arm can be tightly pressed with the first motor under the action of the torsion spring when rotating to the groove 511, and the stability of the connection of the second electrode 55 and the first electrode 54 is ensured.
A method of charging a cable comprising the steps of:
s10: setting a set temperature T of the switching liquid cooling wire core and a set power W of the switching liquid cooling wire core;
s20: when the temperature of the liquid cooling wire core is more than or equal to T, controlling the charging power of the liquid cooling wire core to start to decrease;
s30: when the charging power of the liquid cooling wire cores is less than or equal to W, the motor acts to drive the switching disc to rotate and switch the working liquid cooling wire cores;
s40: after the liquid cooling sinle silk switches over the completion, promote liquid cooling sinle silk charging power.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a new energy automobile charges with high-power charging cable for the connection fills electric pile and rifle that charges, a serial communication port, includes:
an outer sheath (1);
the liquid cooling wire cores (2) are arranged in the outer sheath (1) and comprise at least two liquid cooling wire cores;
the auxiliary wire core (3) is arranged in the outer sheath (1), and two ends of the auxiliary wire core are respectively connected with the charging pile and the charging gun;
the temperature measuring device (4) is arranged in the outer sheath (1);
switching device (5), liquid cooling sinle silk (2) one end is connected with the rifle that charges, and the other end passes through switching device (5) and is connected with charging pile, liquid cooling sinle silk (2) with supplementary sinle silk (3) are parallelly connected, switching device (5) include:
a wire connection ring (51), wherein a plurality of first electrodes (54) are arranged on the wire connection ring (51) corresponding to the liquid cooling wire core (2),
the switching disc (52) is rotatably arranged on the wiring ring (51), a second electrode (55) is arranged on the switching disc (52), the second electrode (55) is used for being connected with the first electrode (54), and the second electrode (55) is connected to a charging pile;
and the motor drives the switching disc (52) to rotate.
2. A charging cable according to claim 1, wherein the liquid-cooled core (2) comprises:
the cable conductor (21), the cross-section of the cable conductor (21) is annular, and the annular cavity of the cable conductor (21) forms an inner liquid flow channel (24) along the length direction of the cable conductor;
the liquid cooling pipe (22) is arranged around the periphery of the cable conductor (21), and an outer liquid flow channel (25) is formed between the inner wall of the liquid cooling pipe (22) and the outer wall of the cable conductor (21);
binding post (23), the both ends of cable conductor (21) all are connected with binding post (23), both ends binding post (23) are used for connecting respectively fill electric pile with the rifle that charges, be equipped with liquid cooling mouth (2314) on binding post (23), interior liquid flow channel (24) with outer liquid flow channel (25) all with liquid cooling mouth (2314) intercommunication.
3. A charging cable according to claim 2, characterized in that the connection terminal (23) comprises:
the terminal shell (231) is provided with a first cavity (2311) with one end open, the liquid cooling port (2314) is arranged on the terminal shell (231), and the liquid cooling port (2314) is communicated with the first cavity (2311);
the terminal inner core (232) is sequentially provided with a second cavity (2321), a first annular cavity (2322) and a second annular cavity (2323) from inside to outside, one end of the first annular cavity (2322) and one end of the second annular cavity (2323) are open, two ends of the second cavity (2321) are communicated, and a liquid flow port (2325) is arranged between the first annular cavity (2322) and the second annular cavity (2323) and is communicated;
the terminal inner core (232) is sleeved on the cable conductor (21) so that the second cavity (2321) is communicated with the inner liquid flow channel (24);
the terminal core (232) is inserted into the first cavity (2311), and the first annular cavity (2322) is isolated from the open end of the second annular cavity (2323) by the first cavity (2311).
4. The charging cable according to claim 3, wherein the terminal housing (231) is interposed between the terminal inner core (232) and the liquid cooling pipe (22), a plurality of transition passages (2312) are provided on the terminal housing (231), the transition passages (2312) are used for communicating the outer liquid flow passage (25) with the first cavity (2311), and a one-way valve (2313) is provided in the transition passages (2312).
5. The charging cable according to claim 3, wherein the terminal core (232) is provided with an annular partition plate (2324) to divide the first annular cavity (2322) and the second annular cavity (2323), the plurality of liquid flow ports (2325) are circumferentially arranged on the annular partition plate (2324), an annular groove (2315) matched with the annular partition plate (2324) is arranged at the bottom of the first cavity (2311), and the first annular cavity (2322) and the second annular cavity (2323) are separated through a plug-in fit.
6. A charging cable according to claim 3, wherein the connection terminal (23) further comprises a lock nut (233), the outer walls of the terminal housing (231) and the liquid-cooled tube (22) are both provided with threads, and the lock nut (233) is threadedly connected with the terminal housing (231) and the liquid-cooled tube (22).
7. The charging cable according to claim 2, wherein a heat insulation layer (26) is arranged outside the liquid cooling tube (22), a cooling tube (6) is further arranged in the outer sheath (1), one end of the cooling tube (6) is communicated with the wiring terminal (23) at one end of the liquid cooling wire core (2), and the other end of the cooling tube is communicated with the wiring terminal (23) at the other end of the liquid cooling wire core (2) through a cooling device.
8. The charging cable according to claim 1, wherein the inner wall of the wire connecting ring (51) is provided with a plurality of grooves (511), the first electrode (54) is arranged in the grooves (511), the switching plate (52) is provided with a rotating arm (53) by a torsion spring, the end of the rotating arm (53) is provided with the second electrode (55), and the second electrode (55) is in contact with the inner wall of the wire connecting ring (51).
9. Use of a charging cable according to any of claims 1 to 8, characterized in that it comprises the following steps:
s10: setting a set temperature T for switching the liquid cooling wire core and a set power W for switching the liquid cooling wire core;
s20: when the temperature of the liquid cooling wire core is more than or equal to T, controlling the charging power of the liquid cooling wire core to start to decrease;
s30: when the charging power of the liquid cooling wire cores is less than or equal to W, the motor acts to drive the switching disc to rotate and switch the working liquid cooling wire cores;
s40: after the liquid cooling sinle silk switches over the completion, promote liquid cooling sinle silk charging power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN115424764B (en) * | 2022-11-04 | 2023-04-07 | 长春捷翼汽车科技股份有限公司 | Liquid cooling wire and liquid cooling cable |
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| CN208093243U (en) * | 2018-02-09 | 2018-11-13 | 江苏艾立可电子科技有限公司 | A kind of liquid cooling charging-self type New-energy electric vehicle charging pile cable |
| CN111105899A (en) * | 2020-01-09 | 2020-05-05 | 洛阳正奇机械有限公司 | Liquid cooling cable of European standard direct current charging gun |
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| CN209776195U (en) * | 2016-05-20 | 2019-12-13 | 南线有限责任公司 | liquid-cooled charging cable and liquid-cooled charging cable system |
| EP3572271B1 (en) * | 2018-05-24 | 2023-07-05 | ABB E-mobility B.V. | Electrical vehicle charging system for charging an electrical vehicle |
| NL2023045B1 (en) * | 2019-05-01 | 2020-12-02 | Prysmian Spa | Cable assembly |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN208093243U (en) * | 2018-02-09 | 2018-11-13 | 江苏艾立可电子科技有限公司 | A kind of liquid cooling charging-self type New-energy electric vehicle charging pile cable |
| CN111105899A (en) * | 2020-01-09 | 2020-05-05 | 洛阳正奇机械有限公司 | Liquid cooling cable of European standard direct current charging gun |
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