CN219696541U - Energy-saving battery liquid cooling unit - Google Patents
Energy-saving battery liquid cooling unit Download PDFInfo
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- CN219696541U CN219696541U CN202320461109.XU CN202320461109U CN219696541U CN 219696541 U CN219696541 U CN 219696541U CN 202320461109 U CN202320461109 U CN 202320461109U CN 219696541 U CN219696541 U CN 219696541U
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- cooler
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- 238000001816 cooling Methods 0.000 title claims abstract description 42
- 239000007788 liquid Substances 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000001502 supplementing effect Effects 0.000 claims abstract description 40
- 238000005057 refrigeration Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 claims description 9
- 229910000838 Al alloy Inorganic materials 0.000 claims description 6
- 239000012080 ambient air Substances 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 11
- 238000010438 heat treatment Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
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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
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- Secondary Cells (AREA)
Abstract
The energy-saving battery liquid cooling unit comprises a refrigerating loop, a first four-way valve and a second four-way valve, wherein the first four-way valve is communicated with an internal battery cooler through a first pipeline provided with a heater, the second four-way valve is communicated with the internal battery cooler through a second pipeline provided with a first pump, a third pipeline is sequentially connected with a first electromagnetic valve, an external battery cooler and a second pump in series, two ends of the third pipeline are respectively communicated with the first pipeline and the first four-way valve, the third pipeline is communicated with the second four-way valve through a fourth pipeline provided with a second electromagnetic valve, and a fan is arranged on the external battery cooler side; a fifth pipeline with the middle part communicated with the condenser is connected with the first four-way valve and the second four-way valve, and a sixth pipeline with the middle part communicated with the evaporator is connected with the first four-way valve and the second four-way valve; a seventh pipeline connects the second pipeline with the third pipeline; the second pipeline is connected with the water supplementing system, so that the battery liquid cooling unit is convenient to install and arrange, the working time of the compressor is shortened, the overall power consumption of the unit is reduced, and the battery endurance time is prolonged.
Description
Technical Field
The utility model relates to the technical field of battery thermal management, in particular to an energy-saving battery liquid cooling unit.
Background
A reasonable temperature range for lithium batteries is 20 to 40 degrees beyond which lithium battery safety and operating life will decrease. In the prior art, a separate battery liquid cooling unit is generally adopted to control the temperature of the battery.
The battery liquid cooling unit comprises a shell, a condenser, a compressor, an evaporator, a heat dissipation loop of the condenser, a heat exchange loop of a cooler in a battery, a PTC heater on the heat exchange loop and the like. The heat dissipation loop dissipates heat of the condenser, the heat exchange loop exchanges heat with the evaporator to cool the fluid in the battery inner cooler, and the PTC heater is used for heating the fluid in the battery inner cooler.
The heat dissipation loop of the unit is provided with the fan, so that the unit is large in size and not easy to arrange in the whole machine. In addition, no matter the ambient temperature, the fluid in the cooler in the battery is cooled by the refrigeration of the compressor, so that the power consumption is high, and the endurance time of the battery is reduced.
Disclosure of Invention
The inventor aims at the defects in the prior art, and provides an energy-saving battery liquid cooling unit, so that the battery liquid cooling unit is convenient to install and arrange, the working time of a compressor is reduced, the overall power consumption of the unit is reduced, and the endurance time of a battery is prolonged.
The technical scheme adopted by the utility model is as follows:
an energy-saving battery liquid cooling unit comprises a refrigeration loop, wherein the refrigeration loop comprises a gas-liquid separator, a compressor, a condenser, a dry filter, an expansion valve and an evaporator which are connected in sequence through pipelines,
also comprises a first four-way valve and a second four-way valve,
the fourth port of the first four-way valve is communicated with one end of the cooler in the battery through a first pipeline, a heater is arranged on the first pipeline,
the fourth interface of the second four-way valve is communicated with the other end of the battery internal cooler through a second pipeline, and a first pump is arranged on the second pipeline;
the device also comprises a third pipeline which is provided with a third pipeline,
the third pipeline is sequentially connected with a first electromagnetic valve, a battery external cooler and a second pump in series, a first pipeline between the heater and the battery internal cooler is communicated with one end of the third pipeline, a second port of the first four-way valve is communicated with the other end of the third pipeline, the first four-way valve is adjacent to the second pump, the third pipeline between the battery external cooler and the first electromagnetic valve is communicated with a second port of the second four-way valve through a fourth pipeline, and the fourth pipeline is provided with the second electromagnetic valve;
a fan for driving the ambient air to exchange heat with the battery external cooler is arranged at one side of the battery external cooler;
also comprises a fifth pipeline and a sixth pipeline,
two ends of the fifth pipeline are respectively connected with a third port of the first four-way valve and a third port of the second four-way valve, the middle part of the fifth pipeline is communicated with the condenser,
two ends of the sixth pipeline are respectively connected with a first port of the first four-way valve and a first port of the second four-way valve, and the middle part of the sixth pipeline is communicated with the evaporator;
the battery cooler is connected with the first pump through a first pipeline, and the battery cooler is connected with the second pump through a second pipeline;
and a water supplementing system is connected with a second pipeline between the seventh pipeline and the internal battery cooler.
As a further improvement of the above technical scheme:
the water replenishing system has the structure that: the water supplementing device comprises a first water supplementing pipeline, wherein one end of the first water supplementing pipeline is connected with a second pipeline, the other end of the first water supplementing pipeline is connected with an expansion tank, and a stop valve is arranged on the first water supplementing pipeline at the outlet of the expansion tank;
the first water supplementing pipeline is provided with a branch pipeline, and the branch pipeline is provided with a water supplementing valve.
The external battery cooler shares the fan with other equipment in the vicinity of the battery liquid cooling unit.
The heater is an electric heater or a hot fluid heater.
The external cooler of the battery is a plate heat exchanger, an aluminum alloy plate-fin heat exchanger or an aluminum alloy tube band heat exchanger.
The beneficial effects of the utility model are as follows:
the utility model has compact and reasonable structure and convenient operation, and the fan for radiating the condenser is arranged outside the refrigeration loop by arranging the battery external cooler, thereby being convenient for the installation and arrangement of the battery liquid cooler; the heat exchange loop and the heat dissipation loop after coupling realize that the battery outer cooler is used for heat dissipation of the condenser through switching of the valve and opening and closing of the pump, and can also be used for heat exchange between environment heat and the battery inner cooler, so that the heat or cold in the environment is fully utilized, the overall power consumption of the unit is reduced, the endurance time of the battery is prolonged, and meanwhile, the water supplementing system can supplement heat exchange media and provide expansion space for the heat exchange media at any time in a plurality of modes.
The utility model also has the following advantages:
(1) The battery external cooler and other coolers of the engineering machinery, such as a hydraulic oil cooler and a motor cooler, are combined together to form a cooling module, and share a fan, so that the coolers and the fan are arranged at a position with good ventilation of the engineering machinery, the main body part of the battery liquid cooling unit does not contain the fan, even a shell can be omitted, the volume is greatly reduced, and the layout of a thermal management system of the engineering machinery is very compact and convenient.
(2) For engineering machinery application, the heater can be a hot fluid heater, so that heat recovery in engineering machinery is facilitated, and the overall energy consumption is reduced.
Drawings
Fig. 1 is a schematic diagram of the structure of the present utility model (cooling operation mode).
Fig. 2 is a schematic structural view (medium-low temperature operation mode) of the present utility model.
Fig. 3 is a schematic structural view of the present utility model (heat pump operation mode).
Fig. 4 is a schematic structural view (heating operation mode) of the present utility model.
Wherein: 1. a first pipeline; 11. a first four-way valve; 12. a heater; 2. a second pipeline; 21. a second four-way valve; 22. a first pump; 3. a third pipeline; 31. a first electromagnetic valve; 32. an external battery cooler; 320. a fan; 33. a second pump; 4. a fourth pipeline; 41. a second electromagnetic valve; 5. a fifth pipeline; 6. a sixth pipeline; 7. a seventh pipeline; 8. an in-cell cooler; 9. a water replenishing system; 91. a first water supplementing pipeline; 92. a water supplementing valve; 93. a stop valve; 94. an expansion tank; 95. an automatic exhaust valve; 10. a refrigeration circuit; 101. a gas-liquid separator; 102. a compressor; 103. an evaporator; 104. an expansion valve; 105. drying the filter; 106. a condenser;
a. a first port; b. a second port; c. a third port; d. a fourth port;
e. a first interface; f. a second interface; g. a third interface; h. and a fourth interface.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
As shown in fig. 1 to 4, the energy-saving battery liquid cooling unit of the present embodiment includes a refrigeration circuit 10, and the refrigeration circuit 10 includes a gas-liquid separator 101, a compressor 102, a condenser 106, a dry filter 105, an expansion valve 104, and an evaporator 103, which are sequentially connected by pipes.
The four-way valve further comprises a first four-way valve 11 and a second four-way valve 21, and the first four-way valve 11 and the second four-way valve 21 are electric four-way valves.
The interfaces on the first four-way valve 11 are a first port a, a second port b, a third port c and a fourth port d, the interfaces of the first four-way valve 11 are in two communication modes, the first port a and the fourth port d are communicated, the second port b and the third port c are communicated, and the first port a and the second port b are communicated, and the third port c and the fourth port d are communicated;
the interfaces on the second four-way valve 21 are a first interface e, a second interface f, a third interface g and a fourth interface h, the interfaces of the second four-way valve 21 are in two communication modes, the first interface e and the fourth interface h are communicated, the second interface f and the third interface g are communicated, and the first interface e and the second interface f are communicated, and the third interface g and the fourth interface h are communicated.
The fourth port d of the first four-way valve 11 is communicated with one end of the battery inner cooler 8 through a first pipeline 1, a heater 12 is arranged on the first pipeline 1, the fourth port h of the second four-way valve 21 is communicated with the other end of the battery inner cooler 8 through a second pipeline 2, and a first pump 22 is arranged on the second pipeline 2.
The system further comprises a third pipeline 3, wherein the third pipeline 3 is sequentially connected with a first electromagnetic valve 31, an external battery cooler 32 and a second pump 33 in series, a first pipeline 1 between the heater 12 and the internal battery cooler 8 is communicated with one end of the third pipeline 3, a second port b of the first four-way valve 11 is communicated with the other end of the third pipeline 3, the first four-way valve 11 is adjacent to the second pump 33, the third pipeline 3 between the external battery cooler 32 and the first electromagnetic valve 31 is communicated with a second port f of the second four-way valve 21 through a fourth pipeline 4, and a second electromagnetic valve 41 is arranged on the fourth pipeline 4; a fan 320 is provided on one side of the battery external cooler 32 to heat exchange ambient air with the battery external cooler 32. The first solenoid valve 31 and the second solenoid valve 41 are electromagnetic two-way valves.
Also comprises a fifth pipeline 5 and a sixth pipeline 6, wherein two ends of the fifth pipeline 5 are respectively connected with a third port c of the first four-way valve 11 and a third port g of the second four-way valve 21, the middle part of the fifth pipeline 5 is communicated with a condenser 106, both ends of the sixth pipeline 6 are respectively connected with a first port a of the first four-way valve 11 and a first port e of the second four-way valve 21, and the middle part of the sixth pipeline 6 is communicated with the evaporator 103.
And the battery cooling device further comprises a seventh pipeline 7, wherein a second pipeline 2 between the second four-way valve 21 and the first pump 22 is connected with one end of the seventh pipeline 7, and a third pipeline 3 between the battery external cooler 32 and the second pump 33 is connected with the other end of the seventh pipeline 7.
A water supplementing system 9 is connected to the second line 2 between the seventh line 7 and the intra-cell cooler 8. The water supplementing system 9 can supplement heat exchange medium for the connected pipelines at any time and provide expansion space for the heat exchange medium.
Specifically, the first pipe 1, the second pipe 2, and the sixth pipe 6 communicating with the evaporator 103 constitute a heat exchange circuit, and a part of the third pipe 3, the fourth pipe 4, and the fifth pipe 5 communicating with the condenser 106, which are connected in series with the second pump 33 and the external battery cooler 32, constitute a heat radiation circuit.
The fan 320 on one side of the battery external cooler 32 is used for exchanging heat between the heat exchange medium flowing through the battery external cooler 32 and the ambient air, and the fan 320 for radiating the heat of the condenser 106 is arranged outside the refrigeration circuit 10 by arranging the battery external cooler 32, so that the installation and arrangement of the battery liquid cooler are facilitated.
The first pipeline 1, the third pipeline 3, the fifth pipeline 5 and the sixth pipeline 6 are connected through the first four-way valve 11, the second pipeline 2, the fourth pipeline 4, the fifth pipeline 5 and the sixth pipeline 6 are connected through the second four-way valve 21, the third pipeline 3 between the second pump 33 and the battery external cooler 32 is connected with the second pipeline 2 through the seventh pipeline 7, one end of the third pipeline 3 is connected with the second pipeline 2, the heat exchange loop and the heat dissipation loop are coupled, and meanwhile, media flowing through the heat exchange loop and the heat dissipation loop are the same and are all water.
The heat exchange loop and the heat dissipation loop after coupling realize the control of various working modes of the battery liquid cooling unit through the switching of the valve and the opening and closing of the pump, and the specific working principle is as follows:
as shown in fig. 1, when the ambient temperature is high, the battery liquid cooling unit is in a cooling operation mode:
the first port a and the fourth port d of the first four-way valve 11 are communicated, and the second port b and the third port c are communicated;
the first interface e and the fourth interface h of the second four-way valve 21 are communicated, and the second interface f and the third interface g are communicated;
the first solenoid valve 31 is closed, and the second solenoid valve 41 is opened;
compressor 102 on, first pump 22 on, second pump 33 on, fan 320 on, heater 12 off, water make-up valve 92 off, shut-off valve 93 on;
the water inlet temperature of the battery liquid cooling unit is 20-30 ℃, and the water outlet temperature is 10-15 ℃;
in the working process, the heat exchange loop stably circulates under the drive of the first pump 22, the heat dissipation loop stably circulates under the drive of the second pump 33, the battery outer cooler 32 dissipates heat for the condenser 106, and the evaporator 103 dissipates heat for the battery inner cooler 8.
The seventh pipeline 7 is connected with the heat exchange loop and the heat radiation loop, and is supplemented by the water supplementing system 9 when water is lacked in the loops, and can timely enter the water supplementing system 9 when any loop medium in the two loops expands.
As shown in fig. 2, when the ambient temperature is a low-medium temperature, the battery liquid cooling unit is in a low-medium temperature operation mode:
the first port a and the fourth port d of the first four-way valve 11 are communicated, and the second port b and the third port c are communicated;
the first interface e and the second interface f of the second four-way valve 21 are communicated, and the third interface g and the fourth interface h are communicated;
the first solenoid valve 31 is opened, and the second solenoid valve 41 is closed;
compressor 102 off, first pump 22 on, second pump 33 off, fan 320 on, heater 12 off, water make-up valve 92 off, shut-off valve 93 on;
the water inlet temperature of the battery liquid cooling unit is 20-35 ℃, and the water outlet temperature is 15-20 ℃;
the ambient temperature is below 20 ℃.
In the working process, the heat exchange medium in the heat exchange loop is driven by the first pump 22, flows out from the second pipeline 2, passes through the seventh pipeline 7 and then enters the battery external cooler 32 to exchange heat with air in the environment, and then enters the first pipeline 1 from the third pipeline 3, so that a new heat exchange loop for cooling the battery by using the environment temperature is formed, namely, the battery external cooler 32 directly dissipates heat for the battery internal cooler 8, and the working time of the compressor 102 is shortened.
In the working mode, the new heat exchange loop is the loop of the only flowing heat exchange medium, when the loop lacks water, the loop is supplemented by the water supplementing system 9, and when the loop heat exchange medium expands, the loop can timely enter the water supplementing system 9.
As shown in fig. 3, when the ambient temperature is not particularly low, for example, higher than-15 ℃, the battery liquid cooling unit is in a heat pump operation mode, and the heater 12 is not required to heat the heat exchange medium from the battery internal cooler 8, so that the power consumption during heating is further reduced.
The first port a and the second port b of the first four-way valve 11 are communicated, and the third port c and the fourth port d are communicated;
the first interface e and the second interface f of the second four-way valve 21 are communicated, and the third interface g and the fourth interface h are communicated;
the first solenoid valve 31 is closed, and the second solenoid valve 41 is opened;
compressor 102 on, first pump 22 on, second pump 33 on, fan 320 on, heater 12 off, water make-up valve 92 off, shut-off valve 93 on;
the water inlet temperature of the battery liquid cooling unit is-15-0 ℃, and the water outlet temperature is 15-40 ℃.
In the working process, the battery liquid cooling unit forms two new loops:
the first circuit is composed of a part of the third pipe 3, the fourth pipe 4 and the sixth pipe 6, and the heat exchange medium in the circuit stably circulates by the second pump 33, and the heat is taken from the environment through the off-battery cooler 32 to the evaporator 103.
The second circuit is composed of a first pipeline 1, a second pipeline 2 and a fifth pipeline 5, and the heat exchange medium in the circuit stably circulates and flows under the drive of a first pump 22 to transfer the heat in the condenser 106 to the intra-battery cooler 8.
The seventh pipeline 7 connects the first loop and the second loop, when any one of the loops lacks water, the water is supplemented by the water supplementing system 9, and when any one of the two loops expands, the water can timely enter the water supplementing system 9.
As shown in fig. 4, when the ambient temperature is particularly low, the battery liquid cooling unit enters a heating operation mode, and the heater 12 is operated to heat the battery by heating the cooling liquid.
The first port a and the second port b of the first four-way valve 11 are communicated, and the third port c and the fourth port d are communicated;
the first interface e and the second interface f of the second four-way valve 21 are communicated, and the third interface g and the fourth interface h are communicated;
the first solenoid valve 31 is closed, and the second solenoid valve 41 is closed;
compressor 102 off, first pump 22 on, second pump 33 off, fan 320 off, heater 12 on, make-up valve 92 off, shut-off valve 93 on;
the water inlet temperature of the battery liquid cooling unit is-30-0 ℃, and the water outlet temperature is 15-40 ℃.
In the working process, the battery liquid cooling unit forms another new heat exchange loop which consists of a first pipeline 1, a second pipeline 2 and a fifth pipeline 5, and the heat exchange medium in the loop circularly flows under the drive of a first pump 22 and is heated by a heater 12 to provide heat for the battery internal cooler 8.
In the working mode, the new heat exchange loop is the loop of the only flowing heat exchange medium, when the loop lacks water, the loop is supplemented by the water supplementing system 9, and when the loop heat exchange medium expands, the loop can timely enter the water supplementing system 9.
By providing the battery external cooler 32, the fan 320 for radiating the heat of the condenser 106 is arranged outside the refrigeration circuit 10, so that the installation and arrangement of the battery liquid cooler are facilitated; the heat exchange loop and the heat dissipation loop after coupling realize that the battery outer cooler 32 is used for heat dissipation of the condenser 106 through switching of the valve and opening and closing of the pump, and can also be used for heat exchange between environment heat and the battery inner cooler 8, so that the heat or cold in the environment is fully utilized, the overall power consumption of a unit is reduced, the endurance time of the battery is prolonged, and meanwhile, the water supplementing system 9 can supplement heat exchange media and provide expansion space for the heat exchange media at any time in a plurality of modes.
As shown in fig. 1 to 4, the water replenishing system 9 has the following structure: the water supplementing device comprises a first water supplementing pipeline 91, wherein one end of the first water supplementing pipeline 91 is connected with a second pipeline 2, the other end of the first water supplementing pipeline 91 is connected with an expansion tank 94, and a stop valve 93 is arranged on the first water supplementing pipeline 91 at the outlet of the expansion tank 94;
the first water supplementing pipe 91 is provided with a branch pipe, and the branch pipe is provided with a water supplementing valve 92.
The expansion tank 94 is provided with an automatic exhaust valve 95, the expansion tank 94 is used for supplementing water for the unit, and water is supplemented through a branch pipeline when the expansion tank 94 lacks water.
As shown in fig. 1-4, the battery external cooler 32 shares a fan 320 with other devices in the vicinity of the battery liquid cooling unit.
Specifically, the battery external cooler 32 can be independently combined with other coolers of the engineering machinery, such as a hydraulic oil cooler and a motor cooler to form a cooling module, and the cooling module and the fan 320 are shared, so that the cooling module and the fan 320 are arranged at a position with good ventilation of the engineering machinery, the main body part of the battery liquid cooling unit does not contain the fan, even a shell can be omitted, the volume is greatly reduced, and the layout of a thermal management system of the engineering machinery is very compact and convenient.
As shown in fig. 1-4, the heater 12 is an electric heater or a thermal fluid heater.
Specifically, the hot fluid heater is a heater that exchanges heat by hot water or hot oil or the like, such as a heat recovery heat exchanger that uses machine hydraulic oil or motor cooling water.
For energy storage applications, the heater 12 is an electric heater.
For construction machine applications, the heater 12 may be a thermal fluid heater, facilitating heat recovery in the construction machine and reducing overall energy consumption.
As shown in fig. 1 to 4, the external battery cooler 32 is a plate heat exchanger, an aluminum alloy plate-fin heat exchanger or an aluminum alloy tube strip heat exchanger, so that the heat exchange effect of the battery liquid cooling unit is improved.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (5)
1. The utility model provides an energy-saving battery liquid cooling unit, includes refrigeration circuit (10), refrigeration circuit (10) are including gas-liquid separator (101), compressor (102), condenser (106), drier-filter (105), expansion valve (104) and evaporimeter (103) through the pipe connection in proper order, its characterized in that:
also comprises a first four-way valve (11) and a second four-way valve (21),
a fourth port (d) of the first four-way valve (11) is communicated with one end of the battery internal cooler (8) through a first pipeline (1), a heater (12) is arranged on the first pipeline (1),
a fourth interface (h) of the second four-way valve (21) is communicated with the other end of the battery internal cooler (8) through a second pipeline (2), and a first pump (22) is arranged on the second pipeline (2);
also comprises a third pipeline (3),
the third pipeline (3) is sequentially connected with a first electromagnetic valve (31), a battery external cooler (32) and a second pump (33) in series, a first pipeline (1) between the heater (12) and the battery internal cooler (8) is communicated with one end of the third pipeline (3), a second port (b) of the first four-way valve (11) is communicated with the other end of the third pipeline (3), the first four-way valve (11) is adjacent to the second pump (33), the third pipeline (3) between the battery external cooler (32) and the first electromagnetic valve (31) is communicated with a second port (f) of the second four-way valve (21) through a fourth pipeline (4), and a second electromagnetic valve (41) is arranged on the fourth pipeline (4);
a fan (320) for driving the ambient air to exchange heat with the battery external cooler (32) is arranged on one side of the battery external cooler (32);
also comprises a fifth pipeline (5) and a sixth pipeline (6),
two ends of the fifth pipeline (5) are respectively connected with a third port (c) of the first four-way valve (11) and a third port (g) of the second four-way valve (21), the middle part of the fifth pipeline (5) is communicated with the condenser (106),
two ends of the sixth pipeline (6) are respectively connected with a first port (a) of the first four-way valve (11) and a first port (e) of the second four-way valve (21), and the middle part of the sixth pipeline (6) is communicated with the evaporator (103);
the battery cooling system further comprises a seventh pipeline (7), wherein a second pipeline (2) between the second four-way valve (21) and the first pump (22) is connected with one end of the seventh pipeline (7), and a third pipeline (3) between the battery external cooler (32) and the second pump (33) is connected with the other end of the seventh pipeline (7); and a water supplementing system (9) is connected with the second pipeline (2) between the seventh pipeline (7) and the battery internal cooler (8).
2. The energy-efficient battery liquid cooling unit as defined in claim 1, wherein: the water supplementing system (9) has the structure that: the water supplementing device comprises a first water supplementing pipeline (91), wherein one end of the first water supplementing pipeline (91) is connected with a second pipeline (2), the other end of the first water supplementing pipeline (91) is connected with an expansion tank (94), and a stop valve (93) is arranged on the first water supplementing pipeline (91) at the outlet of the expansion tank (94);
the first water supplementing pipeline (91) is provided with a branch pipeline, and the branch pipeline is provided with a water supplementing valve (92).
3. The energy-efficient battery liquid cooling unit as defined in claim 1, wherein: the battery external cooler (32) shares the fan (320) with other devices in the vicinity of the battery liquid cooling unit.
4. The energy-efficient battery liquid cooling unit as defined in claim 1, wherein: the heater (12) is an electric heater or a hot fluid heater.
5. The energy-efficient battery liquid cooling unit as defined in claim 1, wherein: the battery external cooler (32) is a plate heat exchanger, an aluminum alloy plate-fin heat exchanger or an aluminum alloy tube band heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320461109.XU CN219696541U (en) | 2023-03-10 | 2023-03-10 | Energy-saving battery liquid cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320461109.XU CN219696541U (en) | 2023-03-10 | 2023-03-10 | Energy-saving battery liquid cooling unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219696541U true CN219696541U (en) | 2023-09-15 |
Family
ID=87962552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320461109.XU Active CN219696541U (en) | 2023-03-10 | 2023-03-10 | Energy-saving battery liquid cooling unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219696541U (en) |
-
2023
- 2023-03-10 CN CN202320461109.XU patent/CN219696541U/en active Active
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