CN111934056B - Battery thermal management system and thermal management method for automobile crane - Google Patents
Battery thermal management system and thermal management method for automobile crane Download PDFInfo
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- CN111934056B CN111934056B CN202010915553.5A CN202010915553A CN111934056B CN 111934056 B CN111934056 B CN 111934056B CN 202010915553 A CN202010915553 A CN 202010915553A CN 111934056 B CN111934056 B CN 111934056B
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- battery pack
- heat exchange
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- 238000007726 management method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 118
- 238000001816 cooling Methods 0.000 claims abstract description 91
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 239000003507 refrigerant Substances 0.000 claims description 32
- 238000004378 air conditioning Methods 0.000 claims description 14
- 238000007710 freezing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
- H01M10/663—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an air-conditioner or an engine
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Automation & Control Theory (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery thermal management system of an automobile crane and a thermal management method thereof, the automobile crane battery thermal management system comprises an electronic control device, a liquid cooling heat exchange plate arranged in a battery pack, a water inlet and a water outlet which are arranged on the battery pack and connected with the liquid cooling heat exchange plate, a water inlet water temperature sensor arranged at the water inlet, a water outlet water temperature sensor arranged at the water outlet, a liquid cooling heat exchanger, a PTC heater and an air conditioner heat exchange system. The invention is provided with the PCT heater, can heat the liquid cooling heat exchange plates in the battery pack in a water heating way, and can heat the battery pack; the invention is provided with an air conditioner heat exchange system, and can realize the liquid cooling heat exchange between the liquid cooling heat exchanger and the liquid cooling heat exchange plate so as to realize the refrigeration of the battery pack. According to the invention, the working temperature of the battery pack is automatically regulated, so that the battery pack is strictly maintained in a use temperature range, the activity of the battery is maintained, and the service life of the battery is prolonged.
Description
Technical Field
The invention relates to the technical field of automobile cranes, in particular to an automobile crane battery thermal management system and a thermal management method thereof.
Background
The current automobile crane battery in the market is limited in capacity, service life and safety and is only used for an electric system with low power consumption, including electric elements such as a working lamp, a sensor, an air conditioner and the like. The heat management system only focuses on heat dissipation of the battery, the mode is generally natural cooling or air cooling, and the battery is heated to generate heat by the internal resistance of the battery.
With the popularization of new energy automobiles, the cooling system is basically consistent, the cooling circulation of a power electronic device and a battery pack is independent loops, the cooling of the battery is realized through a Chiller refrigerator, and the heating of the battery adopts PTC. The principle is that when the temperature of the battery is higher than 35 ℃, the battery is cooled by a Chiller refrigerator; when the battery circuit coolant is lower than 10 ℃, the battery is heated by the PTC heater. The thermal management system has a relatively simple structure, is insufficient in energy utilization, and cannot well maintain the activity of the battery and prolong the service life of the battery.
Disclosure of Invention
The invention aims to solve the technical problem of providing a battery thermal management system and a thermal management method for an automobile crane, which can realize refrigeration and thermal management of a battery pack of the automobile crane at the same time and prolong the service life of the battery.
The technical scheme of the invention is as follows:
The battery thermal management system of the automobile crane comprises an electronic control device, a liquid cooling heat exchange plate arranged in a battery pack, a water inlet and a water outlet which are arranged on the battery pack and connected with the liquid cooling heat exchange plate, a water inlet water temperature sensor arranged at the water inlet, a water outlet water temperature sensor arranged at the water outlet, a liquid cooling heat exchanger, a PTC heater and an air conditioner heat exchange system; the water inlet and the water outlet are connected with a PTC heater, and the PTC heater heats the refrigerant in the liquid cooling heat exchange plate; the second outlet of the liquid cooling heat exchanger is connected with the water inlet of the battery pack, the water outlet of the battery pack is connected with the first inlet of the liquid cooling heat exchanger through the first electronic water pump, the air conditioning heat exchange system comprises a compressor, a condenser and an evaporator which are sequentially connected, the outlet of the condenser is connected with the second inlet of the liquid cooling heat exchanger, the first outlet of the liquid cooling heat exchanger is connected with the inlet of the evaporator, the first inlet is communicated with the first outlet through a pipeline in the liquid cooling heat exchanger, and the second inlet is communicated with the second outlet through a pipeline in the liquid cooling heat exchanger; the inlet of the PTC heater is connected with the outlet of the evaporator through a second electronic water pump, and the outlet of the PTC heater is connected with the inlet of the evaporator; the refrigerant outlet of the liquid cooling heat exchanger is provided with an electromagnetic valve, and the inlet water temperature sensor, the outlet water temperature sensor, the electromagnetic valve, the starting control end of the air conditioning heat exchange system, the PTC heater, the first electronic water pump and the second electronic water pump are all connected with the electronic control device.
Corresponding expansion water tanks are connected in parallel between the inlet and the outlet of the first electronic water pump and between the inlet and the outlet of the second electronic water pump, and an exhaust valve and a liquid discharge valve are arranged on the expansion water tanks.
The condenser is characterized in that a hydraulic outlet sensor is connected between the outlet of the condenser and the second inlet of the liquid cooling heat exchanger, a hydraulic inlet sensor is connected between the first outlet of the liquid cooling heat exchanger and the inlet of the evaporator, and the hydraulic outlet sensor and the hydraulic inlet sensor are connected with the electronic control device.
And refrigerant leakage sensors are arranged on the communicating pipes of the compressor, the condenser and the evaporator, and the refrigerant leakage sensors are connected with the electronic control device.
An anti-freezing temperature sensor is arranged at the first outlet of the liquid cooling heat exchanger, and the anti-freezing temperature sensor is connected with an electronic control device.
The thermal management method of the battery thermal management system of the automobile crane specifically comprises the following management modes:
(1) And (3) heating a battery pack: the electronic control device acquires the temperature at the water inlet and outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, when the temperature of the battery pack is lower than a set minimum temperature value, the electronic control device starts the PTC heater to work, the refrigerant in the liquid cooling heat exchange plate is heated, the liquid cooling heat exchange plate heats the battery pack, and the liquid cooling heat exchange plate circularly exchanges heat until the temperature of the battery pack is not lower than the set minimum temperature value;
(2) And (3) refrigerating a battery pack: the electronic control device acquires the temperature of a water inlet and a water outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, when the temperature of the battery pack is higher than a set highest temperature value, the electronic control device starts an air conditioner heat exchange system, simultaneously opens a first electronic water pump and an electromagnetic valve, refrigerant in the liquid cooling heat exchange plate flows into the air conditioner heat exchange system through the liquid cooling heat exchanger to refrigerate the refrigerant, then the refrigerant flows into the liquid cooling heat exchange plate through the liquid cooling heat exchanger to cool the battery pack, and the liquid cooling heat exchange plate circularly exchanges heat until the temperature of the battery pack is not higher than the set highest temperature value;
(3) Air conditioning refrigeration: when the electronic control device receives an air conditioner refrigerating instruction, the electronic control device starts an air conditioner heat exchange system, and the air conditioner heat exchange system is used for refrigerating and cooling the automobile crane control room;
(4) Heating by an air conditioner: when the electronic control device receives the air conditioning heat command, the electronic control device starts the PTC heater and the second electronic water pump, and the refrigerant in the evaporator enters the PTC heater for heating and then enters the evaporator again, so that water heating is realized;
(5) Self-circulation: the electronic control device acquires the temperature of the water inlet and outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, and when the temperature of the battery pack is not lower than a set minimum temperature value or higher than a set maximum temperature value, the refrigerant in the liquid cooling heat exchange plate automatically circulates between the pipeline of the PTC heater and the liquid cooling heat exchange plate.
The invention has the advantages that:
(1) The PCT heater is arranged in the invention, so that the liquid cooling heat exchange plates in the battery pack can be heated in a water heating way, and the battery pack can be heated;
(2) The invention is provided with the air-conditioning heat exchange system, on one hand, the air-conditioning heat exchange system can perform liquid-cooling heat exchange with the liquid-cooling heat exchange plates through the liquid-cooling heat exchanger, so as to realize the refrigeration of the battery pack, and on the other hand, the air-conditioning heat exchange system can also realize the refrigeration and the temperature reduction of the control room of the automobile crane;
(3) The air conditioner heat exchange system adopts the water heating of the PCT heater to heat, so that the heating energy consumption of the air conditioner heat exchange system is greatly reduced, and the heating effect is good;
(4) The temperature of the water inlet and outlet of the battery pack is acquired through the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, and the refrigerating and heating operations of the battery pack are automatically started according to the temperature of the battery pack, so that the battery pack is strictly maintained in a use temperature interval, the activity of the battery is maintained, and the service life of the battery is prolonged;
(5) The air conditioner heat exchange system starts refrigerating or heating according to the manual input instruction, and does not influence the heat management control of the battery pack.
Drawings
Fig. 1 is a block diagram of the structure of the present invention.
Fig. 2 is a control schematic of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, a battery thermal management system of an automobile crane comprises an Electronic Control Unit (ECU) 1, a liquid cooling heat exchange plate 2 arranged in a battery pack, a water inlet 3 and a water outlet 4 which are arranged on the battery pack and connected with the liquid cooling heat exchange plate 2, a water inlet temperature sensor 5 arranged at the water inlet 3, a water outlet temperature sensor 6 arranged at the water outlet 4, a liquid cooling heat exchanger 7, a Positive Temperature Coefficient (PTC) heater 8 and an air conditioner heat exchange system;
The water inlet 3 and the water outlet 4 are connected with a PTC heater 8, and the PTC heater 8 heats the refrigerant in the liquid cooling heat exchange plate 2;
The second outlet 7d of the liquid cooling heat exchanger 7 is connected with the water inlet 3 on the battery pack, the water outlet 4 on the battery pack is connected with the first inlet 7a of the liquid cooling heat exchanger 7 through the first electronic water pump 9, the air conditioning heat exchange system comprises a compressor 12, a condenser 13 and an evaporator 14 which are sequentially connected, the outlet of the condenser 13 is connected with the second inlet 7c of the liquid cooling heat exchanger 7, the first outlet 7b of the liquid cooling heat exchanger 7 is connected with the inlet of the evaporator 14, the first inlet 7a is communicated with the first outlet 7b through a pipeline in the liquid cooling heat exchanger, and the second inlet 7c is communicated with the second outlet 7d through a pipeline in the liquid cooling heat exchanger 7;
the inlet of the PTC heater 8 is connected with the outlet of the evaporator 14 through a second electronic water pump 15, and the outlet of the PTC heater 8 is connected with the inlet of the evaporator 14;
Corresponding expansion water tanks 10 are connected in parallel between the inlet and the outlet of the first electronic water pump 9 and between the inlet and the outlet of the second electronic water pump 15, and an exhaust valve and a liquid discharge valve are arranged on the expansion water tanks 10; a liquid outlet pressure sensor 16 is connected between the outlet of the condenser 13 and the refrigerant inlet of the liquid cooling heat exchanger 7, a liquid inlet pressure sensor 17 is connected between the refrigerant outlet of the liquid cooling heat exchanger 7 and the inlet of the evaporator 14, refrigerant leakage sensors 18 are arranged on communication pipelines of the compressor 12, the condenser 13 and the evaporator 14, and an anti-freezing temperature sensor 19 is arranged at the refrigerant outlet of the liquid cooling heat exchanger 7;
The refrigerant outlet of the liquid cooling heat exchanger 7 is provided with an electromagnetic valve 11, and a water inlet water temperature sensor 5, a water outlet water temperature sensor 6, the electromagnetic valve 11, an air conditioner heat exchange system starting control end, a PTC heater 8, a first electronic water pump 9, a second electronic water pump 15, a water outlet pressure sensor 16, a water inlet pressure sensor 17, a refrigerant leakage sensor 18 and an anti-freezing temperature sensor 19 are all connected with the ECU 1.
The thermal management method of the battery thermal management system of the automobile crane specifically comprises the following management modes:
(1) And (3) heating a battery pack: the electronic control unit ECU 1 acquires the temperature at the water inlet and outlet of the battery pack according to the water inlet temperature sensor 5 and the water outlet temperature sensor 6 to obtain the temperature of the battery pack, when the temperature of the battery pack is lower than a set minimum temperature value, the ECU 1 starts the PTC heater 8 to work to heat the refrigerant in the liquid cooling heat exchange plate 2, the liquid cooling heat exchange plate 2 heats the battery pack, and the liquid cooling heat exchange plate 2 circularly exchanges heat until the temperature of the battery pack is not lower than the set minimum temperature value;
(2) And (3) refrigerating a battery pack: the electronic control unit ECU 1 acquires the temperature of a water inlet and outlet of the battery pack according to the water inlet temperature sensor 5 and the water outlet temperature sensor 6 to obtain the temperature of the battery pack, when the temperature of the battery pack is higher than a set highest temperature value, the ECU 1 starts an air-conditioner heat exchange system, simultaneously opens a first electronic water pump 9 and an electromagnetic valve 11, the refrigerant in the liquid-cooling heat exchange plate 2 flows into the air-conditioner heat exchange system through the liquid-cooling heat exchanger 7 to refrigerate the refrigerant, and then flows into the liquid-cooling heat exchange plate 2 through the liquid-cooling heat exchanger 7 to cool the battery pack, and the liquid-cooling heat exchange plate 2 circularly exchanges heat until the temperature of the battery pack is not higher than the set highest temperature value;
(3) Air conditioning refrigeration: when the electronic control unit ECU 1 receives an air conditioner refrigerating instruction, the ECU 1 starts an air conditioner heat exchange system, and the air conditioner heat exchange system is used for refrigerating and cooling the automobile crane control room;
(4) Heating by an air conditioner: when the electronic control unit ECU 1 receives the air conditioning heat command, the ECU 1 starts the PTC heater 8 and the second electronic water pump 15, and the refrigerant in the evaporator 14 enters the PTC heater 8 to be heated and then enters the evaporator 14 again, so that water heating is realized;
(5) Self-circulation: the electronic control unit ECU 1 acquires the temperature of the water inlet and outlet of the battery pack according to the water inlet temperature sensor 5 and the water outlet temperature sensor 6to obtain the battery pack temperature, and when the battery pack temperature is not lower than a set minimum temperature value or higher than a set maximum temperature value, the refrigerant in the liquid cooling heat exchange plate 2 performs self-circulation flow between the pipeline of the PTC heater 8 and the liquid cooling heat exchange plate 2.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. The utility model provides a mobile crane battery thermal management system which characterized in that: the device comprises an electronic control device, a liquid cooling heat exchange plate arranged in a battery pack, a water inlet and a water outlet which are arranged on the battery pack and connected with the liquid cooling heat exchange plate, a water inlet temperature sensor arranged at the water inlet, a water outlet temperature sensor arranged at the water outlet, a liquid cooling heat exchanger, a PTC heater and an air conditioner heat exchange system; the water inlet and the water outlet are connected with a PTC heater, and the PTC heater heats the refrigerant in the liquid cooling heat exchange plate; the second outlet of the liquid cooling heat exchanger is connected with the water inlet of the battery pack, the water outlet of the battery pack is connected with the first inlet of the liquid cooling heat exchanger through the first electronic water pump, the air conditioning heat exchange system comprises a compressor, a condenser and an evaporator which are sequentially connected, the outlet of the condenser is connected with the second inlet of the liquid cooling heat exchanger, the first outlet of the liquid cooling heat exchanger is connected with the inlet of the evaporator, the first inlet is communicated with the first outlet through a pipeline in the liquid cooling heat exchanger, and the second inlet is communicated with the second outlet through a pipeline in the liquid cooling heat exchanger; the inlet of the PTC heater is connected with the outlet of the evaporator through a second electronic water pump, and the outlet of the PTC heater is connected with the inlet of the evaporator; the refrigerant outlet of the liquid cooling heat exchanger is provided with an electromagnetic valve, and the inlet water temperature sensor, the outlet water temperature sensor, the electromagnetic valve, the starting control end of the air conditioning heat exchange system, the PTC heater, the first electronic water pump and the second electronic water pump are all connected with the electronic control device;
Corresponding expansion water tanks are connected in parallel between the inlet and the outlet of the first electronic water pump and between the inlet and the outlet of the second electronic water pump, and an exhaust valve and a liquid discharge valve are arranged on the expansion water tanks;
A hydraulic outlet sensor is connected between the outlet of the condenser and the second inlet of the liquid cooling heat exchanger, a hydraulic inlet sensor is connected between the first outlet of the liquid cooling heat exchanger and the inlet of the evaporator, and the hydraulic outlet sensor and the hydraulic inlet sensor are both connected with an electronic control device;
And refrigerant leakage sensors are arranged on the communicating pipes of the compressor, the condenser and the evaporator, and the refrigerant leakage sensors are connected with the electronic control device.
2. The mobile crane battery thermal management system of claim 1, wherein: an anti-freezing temperature sensor is arranged at the first outlet of the liquid cooling heat exchanger, and the anti-freezing temperature sensor is connected with an electronic control device.
3. The thermal management method of an automotive crane battery thermal management system according to claim 1, wherein: the method specifically comprises the following management modes:
(1) And (3) heating a battery pack: the electronic control device acquires the temperature at the water inlet and outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, when the temperature of the battery pack is lower than a set minimum temperature value, the electronic control device starts the PTC heater to work, the refrigerant in the liquid cooling heat exchange plate is heated, the liquid cooling heat exchange plate heats the battery pack, and the liquid cooling heat exchange plate circularly exchanges heat until the temperature of the battery pack is not lower than the set minimum temperature value;
(2) And (3) refrigerating a battery pack: the electronic control device acquires the temperature of a water inlet and a water outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, when the temperature of the battery pack is higher than a set highest temperature value, the electronic control device starts an air conditioner heat exchange system, simultaneously opens a first electronic water pump and an electromagnetic valve, refrigerant in the liquid cooling heat exchange plate flows into the air conditioner heat exchange system through the liquid cooling heat exchanger to refrigerate the refrigerant, then the refrigerant flows into the liquid cooling heat exchange plate through the liquid cooling heat exchanger to cool the battery pack, and the liquid cooling heat exchange plate circularly exchanges heat until the temperature of the battery pack is not higher than the set highest temperature value;
(3) Air conditioning refrigeration: when the electronic control device receives an air conditioner refrigerating instruction, the electronic control device starts an air conditioner heat exchange system, and the air conditioner heat exchange system is used for refrigerating and cooling the automobile crane control room;
(4) Heating by an air conditioner: when the electronic control device receives the air conditioning heat command, the electronic control device starts the PTC heater and the second electronic water pump, and the refrigerant in the evaporator enters the PTC heater for heating and then enters the evaporator again, so that water heating is realized;
(5) Self-circulation: the electronic control device acquires the temperature of the water inlet and outlet of the battery pack according to the water inlet temperature sensor and the water outlet temperature sensor to obtain the temperature of the battery pack, and when the temperature of the battery pack is not lower than a set minimum temperature value or higher than a set maximum temperature value, the refrigerant in the liquid cooling heat exchange plate automatically circulates between the pipeline of the PTC heater and the liquid cooling heat exchange plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915553.5A CN111934056B (en) | 2020-09-03 | 2020-09-03 | Battery thermal management system and thermal management method for automobile crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010915553.5A CN111934056B (en) | 2020-09-03 | 2020-09-03 | Battery thermal management system and thermal management method for automobile crane |
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| CN111934056A CN111934056A (en) | 2020-11-13 |
| CN111934056B true CN111934056B (en) | 2024-08-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113548585B (en) * | 2021-07-30 | 2023-10-03 | 三一汽车起重机械有限公司 | Integrated control system and method for automobile crane, electronic equipment and storage medium |
| CN114559786A (en) * | 2022-02-23 | 2022-05-31 | 柳工(常州)矿山机械有限公司 | Air conditioner and battery heat dissipation integrated system of pure electric wide-body mining dump truck |
| CN116345018B (en) * | 2023-02-17 | 2024-03-19 | 常州天目智能科技有限公司 | Battery thermal management system, control system and method and electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212257626U (en) * | 2020-09-03 | 2020-12-29 | 安徽柳工起重机有限公司 | Thermal management system for battery of automobile crane |
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| CN104786780A (en) * | 2015-05-19 | 2015-07-22 | 安徽柳工起重机有限公司 | Automobile crane air conditioning system |
| CN207225022U (en) * | 2017-09-29 | 2018-04-13 | 成都雅骏新能源汽车科技股份有限公司 | A kind of new energy car battery heat management system |
| CN109768347A (en) * | 2018-12-10 | 2019-05-17 | 山东国金汽车制造有限公司 | One kind being based on bicirculating power battery pack heat management system |
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| CN212257626U (en) * | 2020-09-03 | 2020-12-29 | 安徽柳工起重机有限公司 | Thermal management system for battery of automobile crane |
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