CN213520107U - Heat management system of power changing station and power changing station - Google Patents

Heat management system of power changing station and power changing station Download PDF

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Publication number
CN213520107U
CN213520107U CN202021436259.8U CN202021436259U CN213520107U CN 213520107 U CN213520107 U CN 213520107U CN 202021436259 U CN202021436259 U CN 202021436259U CN 213520107 U CN213520107 U CN 213520107U
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China
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temperature
battery
thermal management
station
fluid
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CN202021436259.8U
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崔亚
杨全凯
王志海
曹兰宝
张志强
韦新
刘艳林
沈新悦
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Zhejiang Jizhi New Energy Automobile Technology Co Ltd
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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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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Abstract

The utility model discloses a trade thermal management system of power station and trade power station, include: a liquid flow system, a refrigeration system, a heating system; the liquid flow system is used for regulating the temperature of a battery in the battery replacement station through the temperature of internal fluid; when the temperature of the battery in the battery replacement station is higher than a first preset temperature, the refrigerating system is used for cooling fluid in the fluid flow system, so that the temperature of the battery is lower than a second preset temperature; when the temperature of the battery in the battery replacement station is lower than a third preset temperature, the heating system is used for heating fluid in the fluid flow system, so that the temperature of the battery is higher than a fourth preset temperature. The utility model adjusts the temperature of the battery in the power exchanging station by setting the liquid flow system and utilizing the temperature of the fluid in the liquid flow system; the temperature of the battery is controlled within a desired interval.

Description

Heat management system of power changing station and power changing station
Technical Field
The utility model relates to a trade the power station field, concretely relates to trade power station heat management system and trade power station.
Background
With the development of new energy technology in China, the technology of integrating photovoltaic, energy storage, charging and discharging and quick replacement of automobile power batteries is continuously broken through. In the aspect of controlling the temperature of a battery in the charging and discharging process, a refrigeration mechanism is usually started only when the temperature of the battery is too high in the charging and discharging process in the conventional battery replacement station, a liquid cooling and liquid heating scheme of a single refrigeration system and a single water pump is usually adopted during charging and discharging of the battery, and the opening and closing of each branch cannot be controlled independently.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problem in the background technology, the utility model provides a heat management system of a battery changing station, which can cool a battery when the temperature of the battery is too high and heat the battery when the temperature of the battery is too low, and can control the opening and closing of each battery branch;
the utility model discloses a realize through following technical scheme:
a thermal management system for a power swapping station, comprising: a fluid flow system, a refrigeration system, and a heating system; the liquid flow system is used for regulating the temperature of a battery in the battery replacement station through the temperature of internal fluid; when the temperature of the battery in the battery replacement station is higher than a first preset temperature, the refrigerating system is used for cooling fluid in the fluid flow system, so that the temperature of the battery is lower than a second preset temperature; when the temperature of the battery in the battery replacement station is lower than a third preset temperature, the heating system is used for heating fluid in the fluid flow system, so that the temperature of the battery is higher than a fourth preset temperature.
Further, when the temperature of the battery is lower than a second preset temperature, the refrigeration system stops working; and when the temperature of the battery is higher than a fourth preset temperature, stopping the heating system.
Further, the refrigeration system includes a first refrigeration circuit and a second refrigeration circuit; said first refrigeration circuit and said second refrigeration circuit being in heat exchange communication with said liquid flow system, respectively;
further, the first refrigeration loop comprises a first compressor, a first condenser, a first fan, a first drying filter, a first expansion valve and a plate heat exchanger; the second refrigeration loop comprises a second compressor, a second condenser, a second fan, a second drying filter, a second expansion valve and the plate heat exchanger.
Further, the liquid flow system further comprises a solenoid valve set; the solenoid valve assembly is used to control the opening and closing of the branches of the plurality of batteries in the fluid flow system.
Further, the thermal management system further comprises a thermal management controller and a power exchange station main controller; when the temperature of the battery in the power swapping station is higher than the first preset temperature, the power swapping station main controller sends a command for opening the solenoid valve bank to the thermal management controller, and the thermal management controller is used for controlling the solenoid valve bank to be opened; when the temperature of the battery in the power exchanging station is lower than the second preset temperature, the power exchanging station main controller sends a command of closing the electromagnetic valve bank to the thermal management controller, and the thermal management controller is used for controlling the electromagnetic valve bank to be closed.
Further, when the temperature of the battery in the power exchanging station is lower than the third preset temperature, the power exchanging station main controller sends an instruction for opening the solenoid valve bank to the thermal management controller, and the thermal management controller controls the solenoid valve bank to be opened; when the temperature of the battery in the power exchanging station is higher than the fourth preset temperature, the power exchanging station main controller sends an instruction for closing the electromagnetic valve bank to the thermal management controller, and the thermal management controller controls the electromagnetic valve bank to be closed.
Further, the fluid in the liquid flow system is a medium, namely ethylene glycol aqueous solution.
Further, the liquid flow system 1 comprises a liquid tank, a first water pump, a second water pump and a flow meter; the liquid tank is provided with a liquid supplementing port for injecting fluid; the first water pump and the second water pump are used for controlling the flow of the fluid; the flow meter is used for metering the flow of the fluid.
The utility model also discloses a trade the power station, trade the power station and include above-mentioned arbitrary scheme trade the heat management system of power station.
Adopt above-mentioned technical scheme, the utility model provides a trade thermal management system of power station and trade the power station and have following beneficial effect: the temperature of a battery in the power conversion station is regulated by arranging a liquid flow system and utilizing the temperature of fluid in the liquid flow system; when the temperature of the battery in the battery replacement station is higher than a first preset temperature, cooling fluid in the fluid flow system through a refrigeration system, so that the temperature of the battery is lower than a second preset temperature; when the temperature of the battery in the battery replacement station is lower than a third preset temperature, heating fluid in the liquid flow system through a heating system, so that the temperature of the battery is higher than a fourth preset temperature.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
Fig. 1 is a schematic structural diagram of a thermal management system of a power swapping station according to an embodiment of the present invention.
In the figure: 1-liquid flow system, 11-liquid tank, 111-liquid supplementing port, 1111-manual liquid supplementing port, 1112-automatic liquid supplementing port, 12-first water pump, 13-second water pump, 14-flowmeter, 15-liquid level sensor, 16-battery inlet water temperature sensor, 17-battery outlet water temperature sensor, 18-electric heater, 19-electric two-way valve, 114-water separator, 115-water collector, 116-electromagnetic valve set, 117-ball valve set, 118-battery, 2-refrigeration system, 21-first refrigeration loop, 211-first compressor, 212-first condenser, 213 first fan, 214-first drying filter, 215-first expansion valve, 216 plate heat exchanger, 22-second refrigeration loop, 221-second compressor, 222-a second condenser, 223-a second fan, 224-a second drying filter, 225-a second expansion valve, 3-a heating system, 4-a thermal management controller and 5-a power station main controller.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with at least one implementation of the invention is included. In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
As shown in fig. 1, the embodiment of the utility model discloses trade thermal management system of power station includes: a liquid flow system 1, a refrigeration system 2 and a heating system 3; the liquid flow system 1 is used for regulating the temperature of a battery in the power conversion station through the temperature of internal fluid; when the temperature of the battery in the power changing station is higher than a first preset temperature, the refrigeration system 2 is used for cooling the fluid in the fluid flow system 1, so that the temperature of the battery is lower than a second preset temperature; when the temperature of the battery in the battery replacement station is lower than a third preset temperature, the heating system 3 is configured to heat the fluid in the fluid flow system 1, so that the temperature of the battery is higher than a fourth preset temperature. Wherein, the embodiment of the utility model provides a not right first preset temperature the second preset temperature the third preset temperature with the concrete numerical value of fourth preset temperature is prescribed a limit, can adjust according to actual conditions.
The embodiment of the utility model provides a through setting up fluid flow system 1 and utilizing the temperature of its inside fluid to adjust the temperature of the battery that is located trade power station; when the temperature of the battery in the battery replacement station is higher than a first preset temperature, cooling the fluid in the fluid flow system 1 through a refrigeration system 2, so that the temperature of the battery is lower than a second preset temperature; when the temperature of the battery in the battery replacement station is lower than a third preset temperature, heating the fluid in the fluid flow system 1 through a heating system 3, so that the temperature of the battery is higher than a fourth preset temperature. Thus, the heat management system according to the embodiment of the present invention can perform the following functions: 1. the battery is cooled during high-temperature centralized charging and discharging, so that the battery is prevented from being over-heated (realized by setting a first preset temperature and a second preset temperature); 2. preheating the battery during low-temperature centralized charging and discharging, and keeping the optimal charging and discharging temperature (realized by setting a third preset temperature and a fourth preset temperature); 3. the battery is not charged and discharged, and the optimum temperature inside the battery can be maintained. To sum up, in the embodiment of the present invention, the refrigeration system 2 provides a cold source for cooling the battery, and can control the temperature of the fluid in the liquid flow system 1 to be at an appropriate temperature and flow rate; the heating system can be an electric heater or a heat pump, and can heat the fluid in the fluid flow system 1 in a low-temperature environment, so as to preheat the battery during low-temperature centralized charging.
In another embodiment of the present invention, when the temperature of the battery is lower than a second preset temperature, the refrigeration system 2 stops working; when the temperature of the battery is higher than a fourth preset temperature, the heating system 3 stops working, and specifically, a corresponding temperature sensor may be arranged in the heat management system of the power exchanging station.
In another embodiment of the present invention, the refrigeration system 2 comprises a first refrigeration circuit 21 and a second refrigeration circuit 22; said first refrigeration circuit and said second refrigeration circuit each being independently capable of heat exchange communication with said liquid flow system 1; in order to be able to control the temperature of the fluid in the flow system at a suitable temperature and flow rate, the first refrigeration circuit 21 comprises a first compressor 211, a first condenser 212, a first fan 213, a first desiccant filter 214, a first expansion valve 215 and a plate heat exchanger 216; the second refrigeration circuit 22 includes a second compressor 221, a second condenser 222, a second fan 223, a second filter-drier 224, a second expansion valve 225 and the plate heat exchanger 216. The plate heat exchanger 216 is used for exchanging heat between fluid and refrigerant in the liquid flow system 1. The operation of the refrigeration system 2 is described below by way of example of the first refrigeration circuit 21: the first compressor 211 works, the gaseous refrigerant enters the first compressor 211, after being compressed by the first compressor 211, the high-temperature and high-pressure refrigerant enters the first condenser 212 to be cooled, the first condenser 212 dissipates heat into air, the refrigerant passes through the first drying filter 214 after being cooled by the first condenser 212, then is throttled and reduced in pressure by the first expansion valve 215 to further reduce temperature, and then the low-temperature and low-pressure refrigerant enters the plate heat exchanger 216 to absorb heat of fluid in the fluid flow system 1 to be evaporated, and then enters the first compressor 211 again, and the cycle is repeated. The embodiment of the utility model relates to a trade management system of power station has included two sets of independent refrigeration circuit (first refrigeration circuit 21 and first refrigeration circuit 22), and the two both can work simultaneously, also can independently work, when the system heat load is great, first compressor 211 with the second compressor 221 works simultaneously; when the load is small, one of the first compressor 211 or the second compressor 221 independently operates to ensure the system stability and the energy saving requirement.
In another embodiment of the present invention, the liquid flow system 1 comprises a liquid tank 11, a first water pump 12, a second water pump 13 and a flow meter 14; a fluid infusion port 111 (which may include a manual fluid infusion port 1111 and an automatic fluid infusion port 1112) for injecting fluid is formed in the liquid tank 11; the first water pump 12 and the second water pump 13 are used for controlling the flow rate of the fluid; the flow meter 14 is used to meter the flow of the fluid. The liquid flow system further comprises a liquid level sensor 15, a battery inlet water temperature sensor 16, a battery outlet water temperature sensor 17, an electric heater 18, an electric two-way valve 19, a water separator 114, a water collector 115, an electromagnetic valve set 116 capable of controlling the on-off of each branch, a ball valve set 117 and a battery 118. The ball valve set 117, among other things, serves to prevent coolant from entering the sump 115, primarily when the system is out of order and requires servicing. The specific operation of the flow system 1 is illustrated as follows: the first water pump 12 or the second water pump 13 sends the cooling liquid from the battery 118 in the liquid tank 11 to the plate heat exchanger 216, the cooling liquid enters the battery 118 after being cooled, and the cooling liquid (the cooling liquid may be ethylene glycol aqueous solution, and the ratio of the cooling liquid to the cooling liquid may be 1: 1) after absorbing the heat of the battery 118 enters the liquid tank 11 again to form a reciprocating cycle. The heat management system of the power conversion station in the embodiment of the utility model uses the double-frequency-conversion water pumps (the first water pump 12 and the second water pump 13), and when the number of the plurality of batteries 118 requiring heat management (heating or cooling) simultaneously in the heat management system of the power conversion station is less than or equal to half of the total number, a single water pump works; when the number of the plurality of batteries 118 simultaneously requiring heat management (heating or cooling) in the heat management system of the power conversion station is more than half of the total number, the double water pumps are started to work. The embodiment of the utility model provides an adopt two refrigerating system and two water pump technique, system reliability is higher.
In another embodiment of the present invention, the solenoid valve set 116 is disposed between the refrigeration system and the liquid flow system, so the solenoid valve set 116 is used to control the opening and closing of the branches of the plurality of batteries 118 in the liquid flow system 1.
In another embodiment of the present invention, the heat management system of the power exchanging station further includes a heat management controller 4 and a power exchanging station main controller 5; when the temperature of the battery in the power swapping station is higher than the first preset temperature, the power swapping station main controller 5 sends a command for opening the solenoid valve group 116 to the thermal management controller 4, and the thermal management controller 4 is used for controlling the solenoid valve group 116 to open; when the temperature of the battery in the power swapping station is lower than the second preset temperature, the power swapping station main controller 5 sends a command for closing the solenoid valve group 116 to the thermal management controller 4, and the thermal management controller 4 is configured to control the solenoid valve group 116 to be closed.
In another embodiment of the present invention, when the temperature of the battery located in the battery replacement station is lower than the third preset temperature, the battery replacement station main controller 5 sends an instruction to open the solenoid valve set 116 to the thermal management controller 4, and the thermal management controller 4 controls the solenoid valve set 116 to open; when the temperature of the battery in the power swapping station is higher than the fourth preset temperature, the power swapping station main controller 5 sends a command for closing the solenoid valve group 116 to the thermal management controller 4, and the thermal management controller 4 controls the solenoid valve group 116 to close.
The embodiment of the utility model provides a trade thermal management system of power station's specific working process as follows:
1. when a battery is charged and discharged, the thermal management controller 4 receives an opening instruction of the electromagnetic valve group 116 of the main controller 5 of the power conversion station, a corresponding water path of the battery 118 is opened, the thermal management controller 4 detects the actual water inlet temperature Tin of the battery and compares the actual water inlet temperature Tin with the preset water inlet temperature [ T3, T1] of the battery, when the Tin is less than T3 (a third preset temperature), fluid in the liquid flow system needs to be heated, the heating system 3 is started, and the opening number of the water pumps is adjusted according to the number of the batteries 118 which simultaneously need to be thermally managed; when Tin is greater than T1 (the first preset temperature), the fluid in the flow system needs to be cooled, the refrigeration system 2 is turned on, the number of water pumps turned on is adjusted according to the number of thermal management simultaneously required by the battery 118, and the number of compressors turned on is determined according to the load of thermal management of the battery 118. Thereby controlling the inlet water temperature and flow rate of the battery within target value ranges.
2. After charging and discharging are finished, if charging of a single branch is finished and charging of other branches is continued, the main controller 5 of the power exchange station issues an instruction of the corresponding branch to the thermal management controller 4, and the thermal management controller 4 closes the electromagnetic valve of the corresponding branch under the electromagnetic valve group 116; if all the branches are charged, the main power station controller 5 issues instructions of all the branches to the thermal management controller 4, and the thermal management controller 4 closes the electromagnetic valves, the water pumps, the compressors or the heaters of all the branches.
3. Fully charged state of the battery: when the internal cell temperature T of the battery 116 is highcellWhen the temperature is too high (not less than T5) or too low (not less than T6) (the high-temperature target value of the battery cell is less than the low-temperature target value of the battery cell T5 and is more than T6), the main controller 5 of the power station issues a corresponding branch circuitThe instruction is given to the thermal management controller 4, and the thermal management controller 4 starts a corresponding refrigeration or heating function to maintain the internal temperature of the battery, so that the service life of the battery can be prolonged.
Furthermore, it should be noted that the electric heater 18 in the liquid flow system 1 in the embodiment of the present invention may be realized by heating with a heat pump; the compressor in the refrigeration system 2 can be a variable frequency compressor, a fixed frequency compressor, or a combination of the compressor and the variable frequency compressor; the fans in the refrigerating system 2 can be fixed-frequency fans or variable-frequency fans, or can be a combination of fixed-frequency fans and variable-frequency fans, or 2 fans are replaced by one fan; the plate heat exchanger 216 in the refrigeration system may be replaced by an evaporator coil placed in the water tank. The embodiment of the utility model relates to a heat management system of power station trades can take away the heat that the battery charging process produced fast, shortens the charge time, prolongs the battery life-span; the battery is quickly preheated at low temperature, so that the charging time is shortened, and the service life of the battery is prolonged; the system reliability is high, and compressor or single trouble of water pump can maintain the interior battery low-load of station and continue the operation, reduces the operation cost.
The embodiment of the utility model provides a still disclose a trade power station, trade the power station and include above-mentioned arbitrary embodiment trade the management system of power station.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims (8)

1. A thermal management system of a power swapping station, comprising: a fluid flow system, a refrigeration system, and a heating system;
the liquid flow system is used for regulating the temperature of a battery in the battery replacement station through the temperature of internal fluid;
when the temperature of the battery in the battery replacement station is higher than a first preset temperature, the refrigerating system is used for cooling fluid in the fluid flow system, so that the temperature of the battery is lower than a second preset temperature;
when the temperature of the battery in the battery replacement station is lower than a third preset temperature, the heating system is used for heating fluid in the liquid flow system, so that the temperature of the battery is higher than a fourth preset temperature;
the refrigeration system includes a first refrigeration circuit and a second refrigeration circuit;
said first refrigeration circuit and said second refrigeration circuit being in heat exchange communication with said liquid flow system, respectively;
the first refrigeration loop comprises a first compressor, a first condenser, a first fan, a first dry filter, a first expansion valve and a plate heat exchanger;
the second refrigeration loop comprises a second compressor, a second condenser, a second fan, a second drying filter, a second expansion valve and the plate heat exchanger.
2. The swapping station's thermal management system of claim 1,
when the temperature of the battery is lower than a second preset temperature, the refrigeration system stops working;
and when the temperature of the battery is higher than a fourth preset temperature, stopping the heating system.
3. The swapping station thermal management system of claim 1, wherein the fluid flow system further comprises a set of solenoid valves;
the electromagnetic valve group is used for controlling the opening and closing of the branches of the batteries in the liquid flow system.
4. The power swapping station thermal management system of claim 3, further comprising a thermal management controller and a power swapping station main controller;
when the temperature of the battery in the power swapping station is higher than the first preset temperature, the power swapping station main controller sends a command for opening the solenoid valve bank to the thermal management controller, and the thermal management controller is used for controlling the solenoid valve bank to be opened;
when the temperature of the battery in the power exchanging station is lower than the second preset temperature, the power exchanging station main controller sends a command of closing the electromagnetic valve bank to the thermal management controller, and the thermal management controller is used for controlling the electromagnetic valve bank to be closed.
5. The swapping station's thermal management system of claim 4,
when the temperature of the battery in the power swapping station is lower than the third preset temperature, the power swapping station main controller sends a command for opening the solenoid valve bank to the thermal management controller, and the thermal management controller controls the solenoid valve bank to be opened;
when the temperature of the battery in the power exchanging station is higher than the fourth preset temperature, the power exchanging station main controller sends an instruction for closing the electromagnetic valve bank to the thermal management controller, and the thermal management controller controls the electromagnetic valve bank to be closed.
6. The power station thermal management system according to claim 1, wherein the fluid in the fluid flow system is a medium, namely an aqueous ethylene glycol solution.
7. The thermal management system of a power swapping station as claimed in claim 1, characterized in that the liquid flow system (1) comprises a liquid tank, a first water pump, a second water pump and a flow meter;
the liquid tank is provided with a liquid supplementing port for injecting fluid;
the first water pump and the second water pump are used for controlling the flow of the fluid;
the flow meter is used for metering the flow of the fluid.
8. A power swapping station comprising a thermal management system of a power swapping station as claimed in any one of claims 1 to 7.
CN202021436259.8U 2020-07-20 2020-07-20 Heat management system of power changing station and power changing station Active CN213520107U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021436259.8U CN213520107U (en) 2020-07-20 2020-07-20 Heat management system of power changing station and power changing station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021436259.8U CN213520107U (en) 2020-07-20 2020-07-20 Heat management system of power changing station and power changing station

Publications (1)

Publication Number Publication Date
CN213520107U true CN213520107U (en) 2021-06-22

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Application Number Title Priority Date Filing Date
CN202021436259.8U Active CN213520107U (en) 2020-07-20 2020-07-20 Heat management system of power changing station and power changing station

Country Status (1)

Country Link
CN (1) CN213520107U (en)

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