CN113054488B - New energy charging system - Google Patents
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- CN113054488B CN113054488B CN202110335374.9A CN202110335374A CN113054488B CN 113054488 B CN113054488 B CN 113054488B CN 202110335374 A CN202110335374 A CN 202110335374A CN 113054488 B CN113054488 B CN 113054488B
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- circulating pump
- heat exchanger
- charging gun
- cooling
- insulating hose
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
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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
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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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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- 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
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/6485—Electrostatic discharge protection
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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
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
- H01R24/22—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable with additional earth or shield contacts
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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
- H01R24/66—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall
- H01R24/70—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with pins, blades or analogous contacts and secured to apparatus or structure, e.g. to a wall with additional earth or shield contacts
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- 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
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20272—Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds
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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
- Y02T90/12—Electric charging stations
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a new energy charging system, which belongs to the field of new energy charging and cooling and comprises a charging gun and a plug corresponding to the charging gun, wherein the front end of the charging gun is provided with an annular electric contact matched with an electric contact, a plugging block is arranged between the annular electric contacts, one end of the plugging block is fixedly connected with the front end of a spring, and the rear end of the spring is fixedly connected with the front end of a hollow cable; the upper end and the lower end of the hollow cable are respectively provided with an insulating hose with the same size, a hollow groove is formed between the insulating hose and the shell of the charging gun, the upper hollow groove and the lower hollow groove are converged in a working area of the heat exchanger, the rear end of the insulating hose is provided with an output end of a circulating pump, and an input end of the circulating pump is arranged in the working area of the heat exchanger; a refrigerant is arranged in the cooling main machine; the cooling device can cool each key electrical component of the charging pile, particularly cables and electrical contacts which generate heat seriously, and avoids safety accidents caused by the heat generation with high probability.
Description
Technical Field
The invention belongs to the field of new energy charging and cooling, and particularly relates to a new energy charging system.
Background
At present, china is facing to energy problems brought by urbanization and industrialization processes, a series of problems such as energy shortage and environmental pollution caused by the problems are increasingly restricting the rapid and healthy development of China, so that the traditional energy consumption mode is changed, the development of new energy industry is imperative, and particularly, the innovation and transformation of the automobile industry are urgent as the key field of energy consumption and environmental pollution. The new energy automobile represented by the electric automobile has good energy-saving and environment-friendly characteristics, is widely concerned at the beginning of generation, accords with the sustainable development concept of China, is beneficial to saving energy consumption and effectively reducing environmental pollution, and is an important choice for changing the development mode into intensive type and environment-friendly type. However, the popularization of electric vehicles is not straightforward, and the industrialization of electric vehicles faces many problems.
Along with the rapid development of the electric vehicle, the electric energy of the battery pack is larger and larger, the required charging time is shorter and shorter, the current is larger and larger, the traditional charging connector adopts air cooling, the air cooling efficiency is low, the cable section can only be increased to meet the requirement, the charging plug and the cable are thicker and thicker, and the charging plug-in connection is quite unchanged; at present, a liquid cooling scheme is proposed by some manufacturers, the scheme can only cool a cable but cannot cool a plug contact, and a plug resistor has no essential change and is easy to burn due to serious heating, so that safety accidents are caused.
Therefore, it is necessary to design a new energy charging system to solve the problems in the prior art.
Disclosure of Invention
In view of the problems in the background art, the present invention is directed to: the utility model provides a new forms of energy charging system for solve the cooling problem of plug contact in the prior art.
The purpose of the invention is realized by the following technical scheme: a new energy charging system comprises a charging gun and a plug corresponding to the charging gun, wherein the upper end and the lower end of the plug are fixedly connected with an electric contact; the front end of the charging gun is provided with annular electric contacts matched with the electric contacts, blocking blocks are arranged between the annular electric contacts, the size of each blocking block is matched with that of the front end of the charging gun, one end of each blocking block is fixedly connected with the front end of a spring, the rear end of the spring is fixedly connected with the front end of the hollow cable, and the spring and the blocking blocks are arranged inside the conductive cylinder; the upper end and the lower end of the hollow cable are respectively provided with an insulating hose with the same size, the rear end of the insulating hose and the rear end of the hollow cable are arranged on the same vertical plane, the front end of the insulating hose is arranged at the front end of the annular electric contact piece of the charging gun, an empty groove is arranged between the insulating hose and the shell of the charging gun, the upper empty groove and the lower empty groove are converged in a working area of a heat exchanger, and the heat exchanger is connected with a cooling host; the rear end of the insulating hose is provided with an output end of a circulating pump, and an input end of the circulating pump is arranged in a working area of the heat exchanger; the circulating pump is electrically connected with a power supply; a cooling medium is arranged in the cooling main machine and is a cooling medium.
Furthermore, the heat exchanger also comprises temperature sensors which are respectively arranged at the connection part of each circuit and the working area of the heat exchanger.
Preferably, the hollow cable is an integrated liquid cooling cable.
Furthermore, the cooling ways of the refrigerant comprise two ways, wherein one way is that the refrigerant starts from a circulating pump, sequentially passes through a hollow cable, a conductive cylinder, an annular electric contact, an empty slot and a heat exchanger, and finally enters the circulating pump; the other type of the circulating pump starts from the circulating pump, sequentially passes through the insulating hose, the annular electric contact, the empty groove and the heat exchanger, and finally enters the circulating pump.
Further, the refrigerant is insulating liquid.
In summary, due to the adoption of the technical scheme, the invention has the following positive technical effects:
1. by two cooling routes of the present invention, namely: the first one is from the circulating pump, pass the hollow cable, conductive cylinder, annular electric contact, empty groove, heat exchanger sequentially, enter the circulating pump finally; the second type starts from a circulating pump, sequentially passes through an insulating hose, an annular electric contact piece, a hollow groove and a heat exchanger, and finally enters the circulating pump; can realize especially to the comparatively serious cable and the electrical contact that generate heat to the cooling of filling electric pile each key electrical component, the cooling effect is very outstanding, very big probability avoided because of the emergence that generates heat and lead to the incident.
2. By the aid of the blocking block and spring structure, the sealing effect of a cooling medium of the charging pile can be improved on the premise that charging is not affected, and safety problems caused by leakage of the cooling medium are avoided; and can realize inserting automatic locking, extract automatic unblock, prevent the maloperation.
3. The cooling scheme of the invention adopts a totally-enclosed circulating liquid cooling scheme, and the scheme cools a power supply connector, a cable and a plug (a contact per se) through refrigerant circulation; the waterproof, dustproof and antistatic protective film meets the highest IP68 protection level; can one-handed operation to easy operation is reliable, promotes the security of filling the electric pile operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that for those skilled in the art, other relevant drawings can be obtained according to the drawings without inventive effort, wherein:
FIG. 1 is a schematic structural view of a separated state of the present invention;
FIG. 2 is a schematic diagram of the plugging state of the present invention;
FIG. 3 is a schematic structural view of the hollow core cable of the present invention;
the labels in the figure are: 1-annular electrical contacts; 2-a conductive cylinder; 3-a housing; 4-an insulated hose; 5-a hollow cable; 6-a power supply; 7-a circulating pump; 8-a heat exchanger; 9-a temperature sensor; 10-cooling the main machine; 11-a spring; 12-electrical contacts; 13-a plug; 14-blocking block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, not by way of limitation, i.e., the embodiments described are intended as a selection of the best mode contemplated for carrying out the invention, not as a full mode. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims of the present application does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item appearing in front of the word "comprising" or "comprises" includes the element or item listed after the word "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The features and properties of the present invention are described in further detail below with reference to examples.
Example one
As shown in fig. 1 to 3, a new energy charging system according to a preferred embodiment of the present invention includes a charging gun and a plug 13 corresponding to the charging gun, wherein electrical contacts 12 are fixedly connected to upper and lower ends of the plug 13; the front end of the charging gun is provided with annular electric contacts 1 matched with the electric contacts 12, blocking blocks 14 are arranged between the annular electric contacts 1, the size of each blocking block 14 is matched with that of the front end of the charging gun, one end of each blocking block 14 is fixedly connected with the front end of the spring 11, the rear end of the spring 11 is fixedly connected with the front end of the hollow cable 5, and the spring 11 and the blocking blocks 14 are arranged inside the conductive cylinder 2; the upper end and the lower end of the hollow cable 5 are respectively provided with an insulating hose 4 with the same size, the rear end of the insulating hose 4 and the rear end of the hollow cable 5 are arranged on the same vertical plane, the front end of the insulating hose 4 is arranged at the front end of the charging gun annular electric contact 1, a hollow groove is arranged between the insulating hose 4 and the shell 3 of the charging gun, the upper hollow groove and the lower hollow groove are converged in a working area of a heat exchanger 8, and the heat exchanger 8 is connected with a cooling host 10; the rear end of the insulating hose 4 is provided with an output end of a circulating pump 7, and an input end of the circulating pump 7 is arranged in a working area of a heat exchanger 8; the circulating pump 7 is electrically connected with the power supply 6; the cooling system also comprises a refrigerant which is a cooling medium.
In the prior art, air cooling is often adopted for a charging pile cooling technology, but the air cooling has poor refrigeration effect and is easy to cause incomplete cooling; the cooling plug structure solves the problem that the plug cannot be cooled by the existing refrigerant or refrigerant, and particularly, the cooling plug structure is provided with the front end of a spring 11 and an inlet plugging block 14, the tail end of the spring 11 is connected with one end of a hollow cable 5, the other end of the hollow cable 5 is connected with a power supply 6, a circulating pump 7 is arranged in the direction of the power supply 6 of the hollow cable 5, the circulating pump 7 controls the refrigerant of a cooling host 10 to flow into a cavity of the spring 11 and an insulating cavity, and finally the refrigerant flows back to the cooling host through a shell 3 and a hollow groove of an insulating outer wall; the cooling ways of the refrigerant comprise two ways, wherein one way is that the refrigerant starts from a circulating pump 7, sequentially passes through a hollow cable 5, a conductive cylinder 2, an annular electric contact piece 1, an empty groove and a heat exchanger 8, and finally enters the circulating pump 7; the other type of the heat exchanger is started from a circulating pump 7, sequentially passes through an insulating hose 4, an annular electric contact 1, an empty groove and a heat exchanger 8, and finally enters the circulating pump 7.
The working principle of the invention is as follows: before power is plugged in: the blocking block 14 is positioned at the front end of the charging gun, the spring 11 is in an expansion state, the cooling main machine 10 is not started, and a refrigerant is in a stagnation state; when electricity is plugged, the plugging block 14 is pushed into the conductive cylinder 2, the spring 11 is in a compressed state, the cooling main machine 10 and the circulating pump 7 are started, and a refrigerant runs along two paths simultaneously to cool; after the plug is pulled out, the blocking block 14 and the spring 11 are reset, the cooling main machine 10 and the circulating pump 7 stop, and the refrigerant also stops running.
Example two
In this embodiment, on the basis of the first embodiment, a temperature sensor 9 is further provided, and the temperature sensors 9 are respectively disposed at the circuit connection positions and the working area of the heat exchanger 8; the present embodiment further arranges thermal temperature sensors at the circuit junctions, such as: the temperature is detected in real time when the charging is carried out near the inserted annular electric contact, and the power is automatically cut off and an alarm is given when the temperature exceeds a threshold value.
EXAMPLE III
In the embodiment, on the basis of the first embodiment, the spring 11 can be made of GH4169 alloy; the hollow cable 5 adopts an integrated liquid cooling cable.
The GH4169 alloy material GH4169 is a precipitation-strengthened nickel-based high-temperature alloy, has good comprehensive performance within the temperature range of-253-650 ℃, has the yield strength below 650 ℃ at the first position of the deformation high-temperature alloy, and has good fatigue resistance, radiation resistance, oxidation resistance, corrosion resistance, good processability and good welding performance; various parts with complicated shapes can be manufactured.
Example four
The refrigerant is insulating liquid. The service life and the stability of the charging equipment are directly determined by the heat dissipation problem of the charging equipment, and the key points are that the internal heat productivity of a high-power charging system is researched and a proper heat dissipation mode is selected through a thermal simulation technology; when a liquid cooling technology is adopted to dissipate heat of high-power charging equipment, the problems of system design heat dissipation pipeline arrangement, selection of cooling liquid and the like need to be solved, wherein the composite insulating oil has wide application in selection of the cooling liquid in the field.
EXAMPLE five
According to the invention, the lip sealing piece can be additionally arranged at the combined outer edge part of the charging gun and the charging pile, namely, the lip sealing piece with the V-shaped or Y-shaped sealing surface and the wrapped metal framework is utilized for sealing, when the charging gun head enters the position of the lip sealing piece (the middle of the V-shaped or Y-shaped) and generates pressure, the V-shaped or Y-shaped lip sealing piece can form tension, so that the lip sealing piece is tightly attached to the charging gun head, and the sealing effect is achieved. The lip sealing element can adopt a single lip sealing element, a double lip sealing element or a multi-lip sealing element according to actual needs.
In the foregoing, various embodiments of the present invention have been described with reference to specific examples. However, it should be understood that: the description of the various embodiments of the present invention is not intended to be limiting. The above description is intended to be exemplary of the invention and not to limit the scope of the invention, which is defined by the claims.
Claims (4)
1. The new energy charging system is characterized by comprising a charging gun and a plug (13) corresponding to the charging gun, wherein the upper end and the lower end of the plug (13) are fixedly connected with an electric contact (12);
the front end of the charging gun is provided with annular electric contacts (1) matched with the electric contacts (12), blocking blocks (14) are arranged between the annular electric contacts (1), the size of each blocking block (14) is matched with that of the front end of the charging gun, one end of each blocking block (14) is fixedly connected with the front end of each spring (11), the rear end of each spring (11) is fixedly connected with the front end of each hollow cable (5), and each spring (11) and each blocking block (14) are arranged inside the corresponding conductive cylinder (2); the upper end and the lower end of the hollow cable (5) are respectively provided with an insulating hose (4) with the same size, the rear end of the insulating hose (4) and the rear end of the hollow cable (5) are arranged on the same vertical plane, the front end of the insulating hose (4) is arranged at the front end of the charging gun annular electric contact piece (1), an empty slot is arranged between the insulating hose (4) and the shell (3) of the charging gun, the upper empty slot and the lower empty slot are converged in a working area of a heat exchanger (8), and the heat exchanger (8) is connected with a cooling host (10);
the rear end of the insulating hose (4) is provided with an output end of a circulating pump (7), and an input end of the circulating pump (7) is arranged in a working area of the heat exchanger (8); the circulating pump (7) is electrically connected with the power supply (6);
a refrigerant is arranged in the cooling main machine (10);
the cooling ways of the refrigerant comprise two ways, wherein one way is that the refrigerant starts from a circulating pump (7), sequentially passes through a hollow cable (5), a conductive cylinder (2), an annular electric contact piece (1), an empty groove and a heat exchanger (8), and finally enters the circulating pump (7); the other type of the device starts from a circulating pump (7), sequentially passes through an insulating hose (4), an annular electric contact piece (1), an empty groove and a heat exchanger (8), and finally enters the circulating pump (7).
2. The new energy charging system according to claim 1, further comprising temperature sensors (9), wherein the temperature sensors (9) are respectively arranged at each circuit connection and the working area of the heat exchanger (8).
3. The new energy charging system according to claim 1, wherein the hollow cable (5) is an integrated liquid-cooled cable.
4. The new energy charging system as claimed in claim 1, wherein the refrigerant is an insulating liquid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110335374.9A CN113054488B (en) | 2021-03-29 | 2021-03-29 | New energy charging system |
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