CN218896687U - PCS and battery cluster integrated energy-saving liquid cooling system and energy storage system - Google Patents
PCS and battery cluster integrated energy-saving liquid cooling system and energy storage system Download PDFInfo
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- CN218896687U CN218896687U CN202223014128.2U CN202223014128U CN218896687U CN 218896687 U CN218896687 U CN 218896687U CN 202223014128 U CN202223014128 U CN 202223014128U CN 218896687 U CN218896687 U CN 218896687U
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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
Abstract
The utility model discloses an integrated PCS and battery cluster energy-saving liquid cooling system, which comprises a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, wherein a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device. The PCS liquid cooling device is connected into the liquid cooling loop, when the system is started in winter, the liquid temperature can be heated through heating of the PCS, the power consumption of the PTC is reduced, and when the system is used, the liquid cooling system can cool PCS equipment and a battery cluster together.
Description
Technical Field
The utility model relates to the technical field of energy storage systems, in particular to an energy-saving liquid cooling system integrating PCS and battery clusters and an energy storage system.
Background
Under the trend of high capacity and high battery multiplying power of an energy storage system, it is important that the heat management system related to energy storage controls the temperature of the whole battery cell to be displayed in a proper range, and the heat management related system provides heat dissipation for the energy storage battery cell through cooling liquid or air, so that safe and reliable operation of the energy storage system is ensured, and the service life of the energy storage battery is prolonged.
At present, in an energy storage container integrated system, an application technology taking liquid cooling as a cooling mode has been widely popularized, and the energy storage container integrated system has the advantages of smaller monomer temperature difference, higher heat dissipation efficiency and better cooling uniformity, but in the existing liquid cooling heat dissipation system, a cooling source or a heat source is mainly provided by a water cooling unit to provide refrigeration or heating requirements for an electric core, and because PTC (Positive Temperature Coeficient, positive temperature coefficient device) has larger power consumption in the process of heating of the electric vehicle liquid cooling unit, the power consumption of the liquid cooling unit is larger, the operation cost is higher, and the technical targets of energy conservation and consumption reduction cannot be achieved; and the PCS (Power Conversion System, energy storage converter) in the energy storage system mostly dissipates heat in an air cooling mode, so that the cooling efficiency is low.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the PCS and battery cluster integrated energy-saving liquid cooling system and the energy storage system are provided, and PCS liquid cooling equipment is connected to the liquid cooling system.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an integrative energy-conserving liquid cooling system of PCS and battery cluster, includes PCS liquid cooling device, water-cooling unit, battery cluster liquid cooling device, the liquid outlet of PCS liquid cooling device is connected to the inlet of water-cooling unit, and the liquid inlet of battery cluster liquid cooling device is connected to the liquid outlet of water-cooling unit, and the liquid inlet of PCS liquid cooling device is connected to the liquid outlet of battery cluster liquid cooling device.
In order to solve the technical problems, the utility model adopts another technical scheme that:
the energy storage system comprises a PCS and a battery cluster integrated energy-saving liquid cooling system, wherein the PCS and battery cluster integrated energy-saving liquid cooling system comprises a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device.
The utility model has the beneficial effects that: a PCS and battery cluster integrated energy-saving liquid cooling system and an energy storage system are characterized in that a PCS liquid cooling device is connected into a liquid cooling loop, when the system is started in winter, the liquid temperature can be heated through heating of the PCS, the power consumption of the PTC is reduced, and when the system is used, the liquid cooling system can cool PCS equipment and the battery cluster together.
Drawings
FIG. 1 is a schematic diagram of a cooling fluid flow path of a liquid cooling system when a battery cluster cooling control strategy is executed according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a cooling fluid flow path of a liquid cooling system when a PCS battery cluster integrated cooling control strategy is executed according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of an integrated PCS and battery cluster energy-saving liquid cooling terminal according to an embodiment of the utility model.
Description of the reference numerals:
1. PCS and battery cluster integrated energy-saving liquid cooling terminal; 2. a processor; 3. a memory; 4. PCS liquid cooling device; 5. a first three-way valve; 6. a second three-way valve; 7. a water cooling unit; 8. and a battery cluster liquid cooling device.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 3, an integrated energy-saving liquid cooling system for a PCS and a battery cluster comprises a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, wherein a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device.
From the above description, the beneficial effects of the utility model are as follows: a PCS and battery cluster integrated energy-saving liquid cooling system and an energy storage system are characterized in that a PCS liquid cooling device is connected into a liquid cooling loop, when the system is started in winter, the liquid temperature can be heated through heating of the PCS, the power consumption of the PTC is reduced, and when the system is used, the liquid cooling system can cool PCS equipment and the battery cluster together.
Further, the device further comprises a control terminal, a first three-way valve and a second three-way valve, wherein the liquid inlet of the water cooling unit is connected with the first interface of the second three-way valve, the liquid outlet of the battery cluster liquid cooling device is connected with the first end of the first three-way valve, the second end of the first three-way valve is connected with the second end of the second three-way valve, the third end of the first three-way valve is connected with the liquid inlet of the PCS liquid cooling device, the liquid outlet of the PCS liquid cooling device is connected with the third end of the second three-way valve, the first three-way valve is an electromagnetic control three-way valve, and the control terminal is electrically connected with the first three-way valve.
From the above description, it can be seen that whether the PCS liquid cooling device is connected can be switched through the three-way valve, so that energy saving and noise reduction are realized.
Further, the second three-way valve is an electromagnetic control three-way valve, and the control terminal is electrically connected with the second three-way valve.
From the above description, it can be seen that the control of the second three-way valve can completely cut off the connection with the PCS liquid cooling device.
Further, the intelligent control system also comprises an ambient temperature sensor, and the control terminal is electrically connected with the ambient temperature sensor.
From the above description, the environmental temperature can be collected for the control terminal, and the control terminal can output the control strategy to control the water-cooling unit to work according to the environmental temperature.
Further, the liquid inlet and the liquid outlet of the water cooling unit are provided with temperature sensors, and the control terminal is electrically connected with the temperature sensors of the liquid inlet and the liquid outlet of the water cooling unit.
From the above description, the temperature of the liquid inlet and the liquid outlet of the water cooling unit can be collected for the control terminal, and the control terminal can output a control strategy to control the water cooling unit to work according to the temperature of the liquid inlet and the liquid outlet of the water cooling unit.
The energy storage system comprises a PCS and a battery cluster integrated energy-saving liquid cooling system, wherein the PCS and battery cluster integrated energy-saving liquid cooling system comprises a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device.
From the above description, the beneficial effects of the utility model are as follows: a PCS and battery cluster integrated energy-saving liquid cooling system and an energy storage system are characterized in that a PCS liquid cooling device is connected into a liquid cooling loop, when the system is started in winter, the liquid temperature can be heated through heating of the PCS, the power consumption of the PTC is reduced, and when the system is used, the liquid cooling system can cool PCS equipment and the battery cluster together.
Further, the device further comprises a control terminal, a first three-way valve and a second three-way valve, wherein the liquid inlet of the water cooling unit is connected with the first interface of the second three-way valve, the liquid outlet of the battery cluster liquid cooling device is connected with the first end of the first three-way valve, the second end of the first three-way valve is connected with the second end of the second three-way valve, the third end of the first three-way valve is connected with the liquid inlet of the PCS liquid cooling device, the liquid outlet of the PCS liquid cooling device is connected with the third end of the second three-way valve, the first three-way valve is an electromagnetic control three-way valve, and the control terminal is electrically connected with the first three-way valve.
From the above description, it can be seen that whether the PCS liquid cooling device is connected can be switched through the three-way valve, so that energy saving and noise reduction are realized.
Further, the second three-way valve is an electromagnetic control three-way valve, and the control terminal is electrically connected with the second three-way valve.
From the above description, it can be seen that the control of the second three-way valve can completely cut off the connection with the PCS liquid cooling device.
Further, the intelligent control system also comprises an ambient temperature sensor, and the control terminal is electrically connected with the ambient temperature sensor.
From the above description, the environmental temperature can be collected for the control terminal, and the control terminal can output the control strategy to control the water-cooling unit to work according to the environmental temperature.
Further, the liquid inlet and the liquid outlet of the water cooling unit are provided with temperature sensors, and the control terminal is electrically connected with the temperature sensors of the liquid inlet and the liquid outlet of the water cooling unit.
From the above description, the temperature of the liquid inlet and the liquid outlet of the water cooling unit can be collected for the control terminal, and the control terminal can output a control strategy to control the water cooling unit to work according to the temperature of the liquid inlet and the liquid outlet of the water cooling unit.
The utility model is used for cooling the energy storage system, so that the PCS and the battery cluster are subjected to integrated cooling management control.
Referring to fig. 1 to 3, a first embodiment of the present utility model is as follows:
the utility model provides an integrative energy-conserving liquid cooling system of PCS and battery cluster, includes integrative energy-conserving liquid cooling terminal 1 of PCS and battery cluster, first three-way valve 5, second three-way valve 6, PCS liquid cooling device 4, water-cooling unit 7, battery cluster liquid cooling device 8, the first interface of second three-way valve 6 is connected to the inlet of water-cooling unit 7, the inlet of battery cluster liquid cooling device 8 is connected to the liquid outlet of water-cooling unit 7, the first end of first three-way valve 5 is connected to the liquid outlet of battery cluster liquid cooling device 8, the second end of second three-way valve 6 is connected to the second end of first three-way valve 5, the inlet of PCS liquid cooling device 4 is connected to the third end of second three-way valve 6 is connected to the third end of PCS liquid cooling device 4.
The liquid inlet and the liquid outlet of the water cooling unit 7 are provided with temperature sensors for collecting liquid inlet temperature and liquid outlet temperature for calculation. The PCS and battery cluster integrated energy-saving liquid cooling terminal 1 is electrically connected with a first three-way valve 5, a second three-way valve 6, a temperature sensor of a liquid inlet and a liquid outlet of a water cooling unit 7 and various devices in the water cooling unit 7.
The PCS and battery cluster integrated energy-saving liquid cooling terminal 1 comprises a memory 3, a processor 2 and a computer program which is stored in the memory 3 and can run on the processor 2, wherein the processor 2 realizes the following method when executing the computer program.
A PCS and battery cluster integrated energy-saving liquid cooling control method comprises the following steps:
judging whether the PCS liquid cooling condition is met, if so, referring to FIG. 2, connecting a liquid outlet of the battery cluster liquid cooling device with a liquid inlet of the PCS liquid cooling device, connecting the liquid outlet of the PCS liquid cooling device with a liquid inlet of a water cooling unit, disconnecting the liquid outlet of the battery cluster liquid cooling device from the liquid inlet of the water cooling unit, and executing a PCS battery cluster integrated cooling control strategy;
otherwise, referring to fig. 1, the three-way valve is controlled to disconnect the liquid outlet of the battery cluster liquid cooling device from the liquid inlet of the PCS liquid cooling device, disconnect the liquid outlet of the PCS liquid cooling device from the liquid inlet of the water cooling unit, connect the liquid outlet of the battery cluster liquid cooling device with the liquid inlet of the water cooling unit, and execute a battery cluster cooling control strategy.
In this embodiment, the PCS liquid cooling conditions are specifically that the ambient temperature is equal to or higher than 0 degrees celsius and equal to or lower than 45 degrees celsius, and the PCS temperature is equal to or higher than 80 degrees celsius.
The PCS battery cluster integrated cooling control strategy comprises the following steps:
s11, controlling a water pump of a water chilling unit to run at 80% duty ratio, and adjusting the opening of an expansion valve to be 50%;
if the ambient temperature is more than or equal to 35 ℃, controlling a compressor of the water cooling unit to operate at 80% duty ratio and a fan to operate at 80% rotating speed for a set period of time, and then executing step S12; so that the noise is less than or equal to 70dB, and the electric power consumption of the water cooling unit is less than or equal to 80% of rated value;
if the ambient temperature is less than 35 ℃ and is more than or equal to 25 ℃, controlling a compressor of the water cooling unit to run at a 50% duty ratio and a fan to run at a 50% rotating speed for a set period of time, and then executing step S12; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 65% of rated value;
if the ambient temperature is less than 25 ℃ and more than or equal to 0 ℃, controlling a compressor of the water cooling unit to operate at a duty ratio of 30% and a fan to operate at a rotating speed of 35% for a set period of time, and then executing step S12; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 45% of rated value.
S12, if the sum of the heat exchange amount of the liquid cooling system and the PCS heat load is more than or equal to 80% of rated refrigerating capacity of the water cooling unit and the heat exchange amount of the liquid cooling system is more than or equal to 50% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at 80% of duty ratio, continuously operating a fan at 80% of rotating speed, adjusting the opening of an expansion valve to 60%, and operating a water pump at 90% of duty ratio;
if the 80% rated refrigerating capacity of the water cooling unit is greater than or equal to 50% rated refrigerating capacity of the water cooling unit and the sum of the heat exchange capacity of the liquid cooling system and PCS heat load is greater than or equal to 50% rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at 80% duty ratio, continuously operating a fan at 50% rotating speed, adjusting the opening of an expansion valve to be 50%, and operating a water pump at 60% duty ratio; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 65% of rated value;
if the sum of the actual refrigerating capacity and PCS heat load of the water cooling unit is less than 50% of rated refrigerating capacity of the water cooling unit and the heat exchange capacity of the liquid cooling system is more than or equal to 30% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at a duty ratio of 30%, continuously operating a fan at a rotating speed of 35%, adjusting the opening of an expansion valve to be 50%, and operating a water pump at a duty ratio of 40%; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 45% of rated value.
The battery cluster cooling control strategy specifically comprises:
executing an active heat dissipation strategy if the ambient temperature is more than or equal to 0 ℃; and if the ambient temperature is less than 0 ℃, executing a natural heat dissipation strategy.
The natural heat dissipation strategy comprises the following steps:
s21, controlling a water pump of a water chilling unit to operate at a 50% duty ratio;
if the temperature of 0 ℃ is more than or equal to-10 ℃, controlling the compressor of the water cooling unit not to operate and the fan to operate at 80% rotating speed for a set period of time, and then executing step S22; so that the noise is less than or equal to 70dB, and the electric power consumption of the water cooling unit is less than or equal to 30% of rated value;
if the ambient temperature is less than-10 ℃ and more than or equal to-20 ℃, controlling the compressor of the water cooling unit not to operate and the fan to operate at 50% rotating speed for a set period of time, and then executing the step S22; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 25% of rated value;
if the ambient temperature is less than-10 ℃ and more than or equal to-20 ℃, controlling the compressor of the water cooling unit not to operate and the fan to operate at 50% rotating speed for a set period of time, and then executing the step S22; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 25% of rated value;
if the ambient temperature is less than-20 ℃ and is more than or equal to-30 ℃, controlling the compressor of the water cooling unit not to operate and the fan to operate at 35% rotating speed for a set period of time, and then executing the step S22; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 20 percent of rated value;
if the ambient temperature is less than minus 30 ℃ and more than or equal to minus 40 ℃, controlling a compressor of the water cooling unit not to operate and a fan to operate at 25% rotating speed for a set period of time, and then executing step S23; so that the noise is less than or equal to 40dB and the electric power consumption of the water cooling unit is less than or equal to 15 percent of rated value.
S22, if the heat exchange capacity of the liquid cooling system is more than or equal to 80% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit not to operate, and continuously operating a fan at 80% of rotating speed;
if 80% rated refrigerating capacity of the water cooling unit is greater than or equal to 50% rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to be not operated, and continuously operating a fan at 50% rotating speed; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 25% of rated value;
if the actual refrigerating capacity of the water cooling unit is less than or equal to 50% of the rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit not to operate, and continuously operating a fan at 35% of the rotating speed; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 20 percent of rated value.
S23, if the heat exchange capacity of the liquid cooling system is more than or equal to 80% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit not to operate, and continuously operating a fan at 50% of rotating speed; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 25% of rated value;
if 80% rated refrigerating capacity of the water cooling unit is greater than or equal to 50% rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to be not operated, and continuously operating a fan at 35% rotating speed; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 20 percent of rated value;
if the actual refrigerating capacity of the water cooling unit is less than or equal to 50% of the rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit not to operate, and continuously operating a fan at 25% of the rotating speed; so that the noise is less than or equal to 40dB and the electric power consumption of the water cooling unit is less than or equal to 15 percent of rated value.
The active heat dissipation strategy comprises the following steps:
s31, controlling a water pump of a water chilling unit to operate at a 50% duty ratio;
if the ambient temperature is more than or equal to 35 ℃, controlling a compressor of the water cooling unit to operate at 80% duty ratio and a fan to operate at 80% rotating speed for a set period of time, and then executing step S22; so that the noise is less than or equal to 70dB, and the electric power consumption of the water cooling unit is less than or equal to 80% of rated value;
if the ambient temperature is less than 35 ℃ and is more than or equal to 25 ℃, controlling a compressor of the water cooling unit to run at a 50% duty ratio and a fan to run at a 50% rotating speed for a set period of time, and then executing step S32; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 65% of rated value;
if the ambient temperature is less than 25 ℃ and more than or equal to 0 ℃, controlling a compressor of the water cooling unit to operate at a duty ratio of 30% and a fan to operate at a rotating speed of 35% for a set period of time, and then executing step S32; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 45% of rated value.
S32, if the heat exchange capacity of the liquid cooling system is more than or equal to 80% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at 80% of duty ratio, and continuously operating a fan at 80% of rotating speed;
if 80% rated refrigerating capacity of the water cooling unit is greater than or equal to 50% rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at a 50% duty ratio, and continuously operating a fan at a 50% rotating speed; so that the noise is less than or equal to 60dB, and the electric power consumption of the water cooling unit is less than or equal to 65% of rated value;
if the actual refrigerating capacity of the water cooling unit is less than or equal to 50% of rated refrigerating capacity of the water cooling unit, controlling a compressor of the water cooling unit to operate at a duty ratio of 30%, and continuously operating a fan at a rotating speed of 35%; so that the noise is less than or equal to 50dB, and the electric power consumption of the water cooling unit is less than or equal to 45% of rated value.
In this embodiment, the set duration is specifically 30min, the thermal load of the PCS is specifically 3% of the current running power of the PCS, and the heat exchange amount of the liquid cooling system is calculated according to the following formula:
C*M*(Tout-Tin)；
wherein C is specific heat capacity of the cooling liquid, M is mass flow of the cooling liquid, tout is outlet water temperature of the water cooling unit, tin is inlet water temperature of the water cooling unit, in the embodiment, the specific heat capacity of the cooling liquid C is 3300J/(kg. ℃), and the mass flow M of the cooling liquid is 0.9kg/s.
In summary, according to the PCS and battery cluster integrated energy-saving liquid cooling system and the energy storage system provided by the utility model, the PCS liquid cooling device is connected into the liquid cooling loop, so that the liquid temperature can be heated through the heating of the PCS when the system is started in winter, the power consumption of the PTC is reduced, and the liquid cooling system can cool the PCS equipment and the battery cluster together when the system is used.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (10)
1. The PCS and battery cluster integrated energy-saving liquid cooling system is characterized by comprising a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, wherein a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device.
2. The PCS and battery cluster integrated energy-saving liquid cooling system in accordance with claim 1 further comprising a control terminal, a first three-way valve and a second three-way valve, wherein the liquid inlet of the water cooling unit is connected with the first interface of the second three-way valve, the liquid outlet of the battery cluster liquid cooling device is connected with the first end of the first three-way valve, the second end of the first three-way valve is connected with the second end of the second three-way valve, the third end of the first three-way valve is connected with the liquid inlet of the PCS liquid cooling device, the liquid outlet of the PCS liquid cooling device is connected with the third end of the second three-way valve, the first three-way valve is an electromagnetically controlled three-way valve, and the control terminal is electrically connected with the first three-way valve.
3. The PCS and battery cluster integrated energy efficient liquid cooling system of claim 2 wherein the second three-way valve is an electromagnetically controlled three-way valve and the control terminal is electrically connected to the second three-way valve.
4. The PCS and battery cluster integrated energy efficient liquid cooling system of claim 2 further comprising an ambient temperature sensor, wherein the control terminal is electrically connected to the ambient temperature sensor.
5. The PCS and battery cluster integrated energy-saving liquid cooling system of claim 3 wherein the liquid inlet and the liquid outlet of the water cooling unit are provided with temperature sensors, and the control terminal is electrically connected with the temperature sensors of the liquid inlet and the liquid outlet of the water cooling unit.
6. The energy storage system is characterized by comprising a PCS and battery cluster integrated energy-saving liquid cooling system, wherein the PCS and battery cluster integrated energy-saving liquid cooling system comprises a PCS liquid cooling device, a water cooling unit and a battery cluster liquid cooling device, a liquid inlet of the water cooling unit is connected with a liquid outlet of the PCS liquid cooling device, a liquid outlet of the water cooling unit is connected with a liquid inlet of the battery cluster liquid cooling device, and a liquid outlet of the battery cluster liquid cooling device is connected with a liquid inlet of the PCS liquid cooling device.
7. The energy storage system of claim 6, further comprising a control terminal, a first three-way valve and a second three-way valve, wherein the liquid inlet of the water chiller is connected to the first port of the second three-way valve, the liquid outlet of the battery cluster liquid cooling device is connected to the first end of the first three-way valve, the second end of the first three-way valve is connected to the second end of the second three-way valve, the third end of the first three-way valve is connected to the liquid inlet of the PCS liquid cooling device, the liquid outlet of the PCS liquid cooling device is connected to the third end of the second three-way valve, the first three-way valve is an electromagnetically controlled three-way valve, and the control terminal is electrically connected to the first three-way valve.
8. An energy storage system according to claim 7, wherein the second three-way valve is an electromagnetically controlled three-way valve, and the control terminal is electrically connected to the second three-way valve.
9. The energy storage system of claim 7, further comprising an ambient temperature sensor, wherein said control terminal is electrically connected to the ambient temperature sensor.
10. The energy storage system of claim 8, wherein the liquid inlet and the liquid outlet of the water cooling unit are provided with temperature sensors, and the control terminal is electrically connected with the temperature sensors of the liquid inlet and the liquid outlet of the water cooling unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223014128.2U CN218896687U (en) | 2022-11-11 | 2022-11-11 | PCS and battery cluster integrated energy-saving liquid cooling system and energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223014128.2U CN218896687U (en) | 2022-11-11 | 2022-11-11 | PCS and battery cluster integrated energy-saving liquid cooling system and energy storage system |
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