CN116442725A - Thermal management system and engineering machinery - Google Patents
Thermal management system and engineering machinery Download PDFInfo
- Publication number
- CN116442725A CN116442725A CN202310537682.9A CN202310537682A CN116442725A CN 116442725 A CN116442725 A CN 116442725A CN 202310537682 A CN202310537682 A CN 202310537682A CN 116442725 A CN116442725 A CN 116442725A
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- Prior art keywords
- heat exchange
- exchange module
- cooling liquid
- battery
- coolant
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- 239000000110 cooling liquid Substances 0.000 claims abstract description 198
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 182
- 238000001514 detection method Methods 0.000 claims abstract description 46
- 230000001105 regulatory effect Effects 0.000 claims abstract description 43
- 238000012546 transfer Methods 0.000 claims abstract description 32
- 230000008859 change Effects 0.000 claims abstract description 11
- 239000002826 coolant Substances 0.000 claims description 385
- 238000010438 heat treatment Methods 0.000 claims description 136
- 230000017525 heat dissipation Effects 0.000 claims description 132
- 239000012530 fluid Substances 0.000 claims description 112
- 239000003507 refrigerant Substances 0.000 claims description 85
- 238000004891 communication Methods 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 36
- 230000001276 controlling effect Effects 0.000 claims description 12
- 238000010276 construction Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 8
- 238000004378 air conditioning Methods 0.000 description 42
- 238000000034 method Methods 0.000 description 41
- 230000008569 process Effects 0.000 description 40
- 238000001816 cooling Methods 0.000 description 38
- 230000000694 effects Effects 0.000 description 20
- 238000010586 diagram Methods 0.000 description 12
- 230000008901 benefit Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004590 computer program Methods 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00321—Heat exchangers for air-conditioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00357—Air-conditioning arrangements specially adapted for particular vehicles
- B60H1/00385—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell
- B60H1/00392—Air-conditioning arrangements specially adapted for particular vehicles for vehicles having an electrical drive, e.g. hybrid or fuel cell for electric vehicles having only electric drive means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00485—Valves for air-conditioning devices, e.g. thermostatic valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to a heat management system and engineering machinery, and relates to the technical field of engineering machinery, wherein the heat management system comprises a cooling liquid temperature regulating system, a hydraulic oil temperature regulating system, an air conditioner working medium temperature regulating system, a temperature detection assembly, a reversing valve assembly and a control center, the cooling liquid temperature regulating system comprises a cooling liquid heat exchange module, the hydraulic oil temperature regulating system comprises a hydraulic oil heat exchange module, the air conditioner working medium temperature regulating system comprises a working medium heat exchange module, the control center controls the reversing valve assembly to change positions according to detection signals of the temperature detection assembly so as to enable the hydraulic oil heat exchange module and the cooling liquid heat exchange module to realize heat transfer, and/or enable the working medium heat exchange module and the hydraulic oil heat exchange module to realize heat transfer, and the heat management system and the engineering machinery can fully utilize high temperature or low temperature generated by different temperature regulating systems to reduce energy consumption and operation cost.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a thermal management system and engineering machinery.
Background
At present, in order to ensure that working components such as a battery and a motor work in a normal temperature range in the working process of the electric engineering machinery, the working components such as the battery and the motor are generally cooled and radiated through cooling liquid, and under some working conditions, the battery can be preheated through the cooling liquid, so that the running efficiency of the battery is improved, therefore, a thermal management system is generally used for regulating the temperature of the cooling liquid in the prior art, but the thermal management system in the prior art cannot fully utilize high temperature or low temperature generated by different temperature regulating systems, so that the energy consumption of the thermal management system is higher, and the running cost is higher.
Disclosure of Invention
In order to solve the technical problems, the heat management system and the engineering machinery provided by the invention can fully utilize high temperature or low temperature generated by different temperature regulating systems, and reduce energy loss, so that the energy consumption and the operation cost of the heat management system are reduced.
In a first aspect, there is provided a thermal management system comprising:
the cooling liquid temperature regulating system comprises a cooling liquid heat exchange module;
the hydraulic oil temperature regulating system comprises a hydraulic oil heat exchange module;
the air conditioner working medium temperature regulating system comprises a working medium heat exchange module;
The temperature detection component is used for detecting the temperatures of different targets;
the reversing valve assembly is used for switching connecting pipelines among the cooling liquid temperature regulating system, the hydraulic oil temperature regulating system and the air conditioner working medium temperature regulating system;
the control center is in communication connection with the temperature detection assembly and the reversing valve assembly;
the control center is used for controlling the reversing valve assembly to change positions according to the detection signal of the temperature detection assembly so as to enable the hydraulic oil heat exchange module and the cooling liquid heat exchange module to realize heat transfer, and/or enable the working medium heat exchange module and the hydraulic oil heat exchange module to realize heat transfer.
According to a first aspect of the invention, the working medium heat exchange module comprises:
the refrigerant heat exchange module is used for accommodating air conditioner refrigerants and is arranged corresponding to the cooling liquid heat exchange module;
and the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid and is correspondingly arranged with the hydraulic oil heat exchange module.
According to a first aspect of the invention, the coolant heat exchange module comprises:
the battery cooling liquid heat exchange module is used for accommodating battery cooling liquid and is correspondingly arranged with the hydraulic oil heat exchange module;
the controller cooling liquid heat exchange module is used for containing the controller cooling liquid and is arranged corresponding to the refrigerant heat exchange module.
According to a first aspect of the present invention, the cooling liquid temperature adjusting system further comprises a cooling liquid heat dissipation module connected with the cooling liquid heat exchange module;
the hydraulic oil temperature regulating system further comprises a hydraulic oil heat dissipation module which is connected with the hydraulic oil heat exchange module, and the hydraulic oil heat exchange module and the cooling liquid heat exchange module are correspondingly arranged;
the air conditioner working medium temperature regulating system further comprises a working medium heat dissipation module which is connected with the working medium heat exchange module, wherein the working medium heat exchange module is correspondingly arranged with the hydraulic oil heat exchange module, and the working medium heat exchange module is correspondingly arranged with the cooling liquid heat exchange module.
According to a first aspect of the present invention, the coolant heat dissipation module includes:
The battery cooling liquid heat dissipation module is connected with the cooling liquid heat exchange module;
and the controller cooling liquid heat dissipation module is connected with the cooling liquid heat exchange module.
According to a first aspect of the invention, the thermal management system further comprises:
the battery system is in communication connection with the control center;
the battery cooling liquid heater is connected with the battery system and is in communication connection with the control center;
the coolant heat exchange module includes:
the battery cooling liquid heat exchange module is arranged corresponding to the hydraulic oil heat exchange module and is connected with the battery system;
the coolant heat dissipation module includes:
the battery cooling liquid heat dissipation module is connected with the battery system;
the reversing valve assembly includes:
the first reversing valve is connected with the battery system and the battery cooling liquid heat dissipation module;
the second reversing valve is connected with the first reversing valve, the battery cooling liquid heater and the battery cooling liquid heat exchange module;
the first reversing valve and the second reversing valve are used for changing a flow pipeline of battery cooling liquid so that the battery cooling liquid passes through the battery cooling liquid heat dissipation module and/or the battery cooling liquid heat exchange module.
According to a first aspect of the invention, the temperature detection assembly comprises:
the first temperature sensor is in communication connection with the control center and is used for detecting the temperature of a battery in the battery system;
the second temperature sensor is in communication connection with the control center and is used for detecting the temperature of the battery cooling liquid output from the battery cooling liquid heat dissipation module;
a third temperature sensor in communication with the control center, the third temperature sensor being configured to detect a temperature of the battery coolant output from the battery coolant heat exchange module;
a fourth temperature sensor in communication with the control center, the fourth temperature sensor being configured to detect a temperature of the battery coolant output from the battery coolant heater;
and the first hydraulic oil temperature sensor is in communication connection with the control center and is used for detecting the temperature of hydraulic oil output from the hydraulic oil heat exchange module.
According to a first aspect of the invention, the thermal management system further comprises:
the motor control system is in communication connection with the control center;
The working medium heat exchange module includes:
the refrigerant heat exchange module is used for accommodating air conditioner refrigerants;
the coolant heat exchange module includes:
the controller cooling liquid heat exchange module is arranged corresponding to the refrigerant heat exchange module and is connected with the motor control system;
the coolant heat dissipation module includes:
the controller cooling liquid heat dissipation module;
the reversing valve assembly includes:
the third reversing valve is connected with the motor control system, the controller cooling liquid heat dissipation module and the controller cooling liquid heat exchange module;
the fourth reversing valve is connected with the controller cooling liquid heat dissipation module, the controller cooling liquid heat exchange module and the motor control system;
the third reversing valve and the fourth reversing valve are used for changing a flow pipeline of the controller cooling liquid so that the controller cooling liquid passes through the controller cooling liquid heat dissipation module and/or the controller cooling liquid heat exchange module.
According to a first aspect of the invention, the temperature detection assembly comprises:
the fifth temperature sensor is in communication connection with the control center and is used for detecting the temperature of a controller in the motor control system;
The sixth temperature sensor is in communication connection with the control center and is used for detecting the temperature of a motor in the motor control system;
a seventh temperature sensor in communication with the control center, the seventh temperature sensor configured to detect a temperature of the controller coolant output from the controller coolant heat dissipation module;
an eighth temperature sensor in communication with the control center, the eighth temperature sensor configured to detect a temperature of the controller coolant output from the controller coolant heat exchange module;
the first refrigerant temperature sensor is in communication connection with the control center and is used for detecting the temperature of the refrigerant output from the refrigerant heat exchange module;
and the first cockpit temperature sensor is in communication connection with the control center and is used for detecting the temperature in the cockpit.
According to a first aspect of the invention, the thermal management system comprises:
the air conditioner heating system is in communication connection with the control center;
the working medium heat exchange module includes:
the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid, and is connected with the air conditioner heating system, and is correspondingly arranged with the hydraulic oil heat exchange module;
The reversing valve assembly includes:
a fifth reversing valve connected with the air conditioner heating system and the working medium heat exchange module;
the fifth reversing valve is used for changing a flow pipeline of the heating working fluid so that the heating working fluid passes through or does not pass through the working medium heat exchange module.
According to a first aspect of the invention, the temperature detection assembly comprises:
the first heating working fluid temperature sensor is in communication connection with the control center and is used for detecting the temperature of the heating working fluid in the heating system working loop;
the first hydraulic oil temperature sensor is in communication connection with the control center and is used for detecting the temperature of hydraulic oil output from the hydraulic oil heat exchange module;
and the first cockpit temperature sensor is in communication connection with the control center and is used for detecting the temperature in the cockpit.
According to a first aspect of the invention, the thermal management system comprises:
a battery system;
the battery cooling liquid heater is connected with the battery system and is in communication connection with the control center;
The working medium heat exchange module includes:
the first refrigerant heat exchange module is used for accommodating an air conditioner refrigerant;
the hydraulic oil heat exchange module includes:
a first hydraulic oil heat exchange module;
the coolant heat exchange module includes:
the first battery cooling liquid heat exchange module is arranged corresponding to the first hydraulic oil heat exchange module and is connected with the battery system;
the second battery cooling liquid heat exchange module is arranged corresponding to the first refrigerant heat exchange module;
the coolant heat dissipation module includes:
a battery coolant heat dissipation module connecting the battery system and the second battery coolant heat exchange module;
the reversing valve assembly includes:
connecting the battery system and the first battery coolant heat exchange module;
a seventh reversing valve connected to the sixth reversing valve, the second battery coolant heat exchange module, and the battery coolant heat dissipation module;
wherein the sixth reversing valve and the seventh reversing valve are configured to change a flow path of the battery coolant such that the battery coolant passes through at least one of the battery coolant heat dissipation module, the first battery coolant heat exchange module, and the second battery coolant heat exchange module.
According to a first aspect of the present invention, the ninth temperature sensor is configured to detect a temperature of a battery in the battery system;
a tenth temperature sensor in communication with the control center, the tenth temperature sensor being configured to detect a temperature of the battery coolant outputted from the battery coolant heat dissipation module;
an eleventh temperature sensor communicatively connected to the control center, the eleventh temperature sensor being configured to detect a temperature of the battery coolant output from the battery coolant heater;
the second hydraulic oil temperature sensor is in communication connection with the control center and is used for detecting the temperature of hydraulic oil output from the first hydraulic oil heat exchange module;
the second refrigerant temperature sensor is in communication connection with the control center and is used for detecting the temperature of the refrigerant output from the first refrigerant heat exchange module;
and the second cockpit temperature sensor is in communication connection with the control center, and the first cockpit temperature sensor is used for detecting the temperature in the cockpit.
According to a first aspect of the invention, the thermal management system further comprises:
The motor control system is in communication connection with the control center;
the working medium heat exchange module includes:
the second refrigerant heat exchange module is used for accommodating an air conditioner refrigerant;
the coolant heat exchange module includes:
the controller cooling liquid heat exchange module is arranged corresponding to the second refrigerant heat exchange module and is connected with the motor control system;
the coolant heat dissipation module includes:
the controller cooling liquid heat dissipation module is connected with the motor control system;
the reversing valve assembly includes:
the eighth reversing valve is connected with the controller cooling liquid heat exchange module, the controller cooling liquid heat dissipation module and the motor control system;
the eighth reversing valve is used for changing a flow pipeline of the controller cooling liquid so that the controller cooling liquid passes or does not pass through the controller cooling liquid heat exchange module.
According to a first aspect of the invention, the temperature detection assembly comprises:
a twelfth temperature sensor in communication with the control center, the twelfth temperature sensor for detecting a temperature of a controller in the motor control system;
a thirteenth temperature sensor in communication with the control center, the thirteenth temperature sensor configured to detect a temperature of a motor in the motor control system;
A fourteenth temperature sensor in communication with the control center, the fourteenth temperature sensor for detecting a temperature of the controller coolant input to the motor control system;
the second refrigerant temperature sensor is in communication connection with the control center and is used for detecting the temperature of the refrigerant output from the second refrigerant heat exchange module;
and the second cockpit temperature sensor is in communication connection with the control center and is used for detecting the temperature in the cockpit.
According to a first aspect of the invention, the thermal management system comprises:
the air conditioner heating system is in communication connection with the control center;
the hydraulic oil heat exchange module includes:
a second hydraulic oil heat exchange module;
the working medium heat exchange module includes:
the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid, and is connected with the air conditioner heating system, and is correspondingly arranged with the second hydraulic oil heat exchange module;
the reversing valve assembly includes:
a ninth reversing valve connected with the air conditioner heating system and the working medium heat exchange module;
The ninth reversing valve is used for changing a flow pipeline of the heating working fluid so that the heating working fluid passes through or does not pass through the working medium heat exchange module.
According to a first aspect of the invention, the temperature detection assembly comprises:
the second heating working fluid temperature sensor is in communication connection with the control center and is used for detecting the temperature of the heating working fluid in the working loop of the heating system;
the second hydraulic oil temperature sensor is in communication connection with the control center and is used for detecting the temperature of hydraulic oil output from the second hydraulic oil heat exchange module;
and the second cockpit temperature sensor is in communication connection with the control center and is used for detecting the temperature in the cockpit.
According to a first aspect of the invention, the thermal management system comprises:
the battery system comprises a battery cooling liquid accommodating box, a first water pump and a battery, wherein the battery cooling liquid accommodating box, the first water pump and the battery are sequentially connected, the battery cooling liquid accommodating cavity box is connected with the cooling liquid heat dissipation module and the cooling liquid heat exchange module, the battery is connected with the cooling liquid heat dissipation module and the cooling liquid heat exchange module, and the first water pump is in communication connection with the control center;
The control center is used for controlling the rotating speed of the first water pump according to the detection signal of the temperature detection assembly.
According to a first aspect of the invention, the thermal management system comprises:
the motor control system comprises a controller, a motor, a second water pump and a controller cooling liquid accommodating box, wherein the controller is used for controlling the motor to work, the motor, the second water pump and the controller cooling liquid accommodating box are sequentially connected, the motor is connected with the cooling liquid radiating module and/or the cooling liquid heat exchange module, the controller cooling liquid accommodating box is connected with the cooling liquid radiating module and the cooling liquid heat exchange module, and the second water pump is in communication connection with the control center;
the control center is used for controlling the rotating speed of the second water pump according to the detection signal of the temperature detection assembly.
According to a first aspect of the invention, the thermal management system further comprises:
the fan is correspondingly arranged with the cooling liquid heat dissipation module, the hydraulic oil heat dissipation module and the working medium heat dissipation module, the fan is in communication connection with the control center, and the control center is used for controlling the rotating speed of the fan according to the detection signal of the temperature detection assembly.
In a second aspect, there is also provided a construction machine, comprising:
a body;
the thermal management system is arranged on the machine body.
The heat management system and the engineering machinery provided by the embodiment of the invention comprise a cooling liquid temperature regulating system, a hydraulic oil temperature regulating system, an air conditioner working medium temperature regulating system, a temperature detection assembly, a reversing valve assembly and a control center, wherein the cooling liquid temperature regulating system comprises a cooling liquid heat exchange module, the hydraulic oil temperature regulating system comprises a hydraulic oil heat exchange module, the air conditioner working medium temperature regulating system comprises a working medium heat exchange module, the temperature detection assembly is used for detecting the temperature of different targets, the reversing valve assembly is used for switching connecting pipelines among the cooling liquid temperature regulating system, the hydraulic oil temperature regulating system and the air conditioner working medium temperature regulating system, the control center is in communication connection with the temperature detection assembly and the reversing valve assembly, the control center can control the reversing valve assembly to exchange positions according to detection signals of the temperature detection assembly, so that the hydraulic oil heat exchange module and the cooling liquid heat exchange module realize heat transfer, and/or the working medium heat exchange module and the hydraulic oil heat exchange module realize heat transfer, thus, the cooling liquid can be heated by utilizing the low temperature of the hydraulic oil working medium, the cooling liquid can be cooled by utilizing the low temperature of the working medium of the air conditioner, the heat loss of the cooling system can be reduced, the heat loss can be reduced in the whole heat management process, and the whole heat management system can be fully cooled, and the cost can be reduced.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing embodiments of the present invention in more detail with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, and not constitute a limitation to the invention. In the drawings, like reference numerals generally refer to like parts or steps.
FIG. 1 is a block diagram of a thermal management system according to an exemplary embodiment of the present invention.
FIG. 2 is a schematic diagram of a thermal management system according to another exemplary embodiment of the present invention.
FIG. 3 is a block diagram of a thermal management system according to another exemplary embodiment of the present invention.
FIG. 4 is a schematic diagram of a thermal management system provided in another exemplary embodiment of the present invention.
Fig. 5 is a block diagram of a control center according to an exemplary embodiment of the present invention.
Reference numerals: 100-a thermal management system; 110-a cooling liquid temperature regulating system; 111-a coolant heat dissipation module; 1111-a battery coolant heat sink module; 1112-a controller coolant heat dissipation module; 112-a coolant heat exchange module; 1121-a battery coolant heat exchange module; 1122-controller coolant heat exchange module; 1123—a first battery coolant heat exchange module; 1124-a second battery coolant heat exchange module; 120-a hydraulic oil temperature regulating system; 121-a hydraulic oil heat dissipation module; 122-a hydraulic oil heat exchange module; 123-a first hydraulic oil heat exchange module; 124-a second hydraulic oil heat exchange module; 130-an air conditioner working medium temperature regulating system; 131-a working medium heat dissipation module; 132—a working medium heat exchange module; 1321-refrigerant heat exchange module; 1322-a heating working fluid heat exchange module; 1323-a first refrigerant heat exchange module; 1324-a second refrigerant heat exchange module; 140-a temperature detection assembly; 141-a first temperature sensor; 142-a second temperature sensor; 143-a third temperature sensor; 144-a fourth temperature sensor; 145-a fifth temperature sensor; 146-sixth temperature sensor; 147-seventh temperature sensor; 148-eighth temperature sensor; 149-ninth temperature sensor; 150-tenth temperature sensor; 151-eleventh temperature sensor; 152-twelfth temperature sensor; 153-thirteenth temperature sensor; 154-fourteenth temperature sensor; 155-a first hydraulic oil temperature sensor; 156-a first refrigerant temperature sensor; 157-a first cockpit temperature sensor; 158-a first heating working fluid temperature sensor; 159-a second hydraulic oil temperature sensor; 160-a second refrigerant temperature sensor; 161-a second cockpit temperature sensor; 162-a second heating working fluid temperature sensor; 170-reversing valve assembly; 171-a first reversing valve; 172-a second reversing valve; 173-a third reversing valve; 174-fourth reversing valve; 175-a fifth reversing valve; 176-a sixth reversing valve; 177-seventh reversing valve; 178-eighth reversing valve; 179-ninth reversing valve; 180-a control center; 181-a processor; 182-memory; 183-input means; 184-output means; 190-battery system; 191-battery coolant containment tank; 192-a first water pump; 193-battery; 200-battery coolant heater; 210-a motor control system; 211-a controller; 212-an electric motor; 213-a second water pump; 214-a controller coolant containment tank; 220-an air conditioning heating system; 221-warm air core; 222—working fluid heater; 223-heating working solution pump; 230-an air conditioning refrigeration system; 240-fans.
Detailed Description
Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present invention and not all embodiments of the present invention, and it should be understood that the present invention is not limited by the example embodiments described herein.
FIG. 1 is a block diagram of a thermal management system according to an exemplary embodiment of the present invention. As shown in fig. 1, the thermal management system 100 provided in the embodiment of the invention can be applied to equipment such as automobiles, engineering machinery and the like, and the application of the thermal management system 100 to the engineering machinery is described herein. The thermal management system 100 provided in the embodiment of the present invention may include a cooling liquid temperature regulating system 110, and during the working process of the engineering machinery, the components such as the battery 193, the motor 212, the controller 211 and the like generate heat, so that the components such as the battery 193, the motor 212, the controller 211 and the like are generally cooled by the cooling liquid, and of course, before the battery 193 works, the battery 193 may be preheated by the heated cooling liquid, and the temperature regulation of the cooling liquid may be realized by the cooling liquid temperature regulating system 110.
As shown in fig. 1, the thermal management system 100 may further include a hydraulic oil temperature adjustment system 120, in which hydraulic oil in a hydraulic oil tank is input to a hydraulic working device during the working process of the engineering machinery, so as to ensure that the hydraulic working device works normally, in which the temperature of the hydraulic oil continuously increases, the hydraulic oil temperature adjustment system 120 may dissipate heat from the temperature of the hydraulic oil on one hand, and may also utilize the high temperature of the hydraulic oil to heat the cooling liquid, so as to meet the preheating requirement of the battery 193 by the cooling liquid, and the specific process will be described in detail later.
As shown in fig. 1, the thermal management system 100 may include an air-conditioning working medium temperature control system 130, generally, the air conditioner may adjust the temperature in the cabin of the engineering machine, if the temperature in the cabin needs to be reduced, the air-conditioning refrigerant needs to be cooled by the air-conditioning working medium temperature control system 130, and the refrigerant is used for reducing the temperature in the cabin; if the temperature of the cockpit needs to be raised, a working medium temperature regulating system is used for heating the heating working fluid of the air conditioner, and the heating working fluid is used for raising the temperature in the cockpit, and the specific process is described in detail later.
FIG. 2 is a schematic diagram of a thermal management system according to another exemplary embodiment of the present invention. As shown in fig. 2, the coolant temperature adjustment system 110 may include a coolant heat exchange module 112, where the coolant heat exchange module 112 may perform heat exchange with a medium with a lower temperature to reduce the temperature of the coolant, or perform heat exchange with a medium with a higher temperature to increase the temperature of the coolant, and a specific heat exchange process will be described in detail later.
As shown in fig. 2, the hydraulic oil temperature adjustment system 120 may include a hydraulic oil heat exchange module 122, where the hydraulic oil heat exchange module 122 may exchange heat with a medium with a lower temperature, and in the process of heat exchange, on one hand, the temperature of the hydraulic oil may be reduced, so that the temperature of the hydraulic oil is in a normal range, and on the other hand, the temperature of the medium with a lower temperature may be raised.
Specifically, as shown in fig. 2, the hydraulic oil heat exchange module 122 is disposed corresponding to the coolant heat exchange module 112, and under the condition that the coolant needs to be heated (such as the condition that the coolant preheats the battery 193), the coolant can pass through the coolant heat exchange module 112, and the hydraulic oil can pass through the hydraulic oil heat exchange module 122, so that heat transfer is implemented between the hydraulic oil heat exchange module 122 and the coolant heat exchange module 112, and the temperature rising rate of the coolant can be improved, so that the energy consumption of other heating components of the coolant temperature regulating system 110 in the process of heating the coolant can be reduced, and the overall operation cost is effectively saved.
As shown in fig. 2, the air-conditioning working medium temperature adjustment system 130 may include a working medium heat exchange module 132, where the working medium heat exchange module 132 may exchange heat with other medium having a higher temperature in the case that the temperature of the air-conditioning working medium is lower, so that the temperature of the medium having a higher temperature may be reduced more quickly during the heat exchange; in addition, under the working condition that the temperature of the air conditioner working medium needs to be heated, the working medium heat exchange module 132 can realize heat exchange with other mediums with higher temperature, and in the heat exchange process, the temperature of the medium with higher temperature can be reduced on one hand, the temperature of the air conditioner working medium can be raised on the other hand, and the temperature raising rate of the air conditioner working medium is effectively improved.
Specifically, the air conditioner working medium may include a refrigerant, as shown in fig. 2, where the working medium heat exchange module 132 is disposed corresponding to the coolant heat exchange module 112, and when the temperature of the refrigerant is low and the cabin is at a predetermined temperature, the refrigerant may pass through the working medium heat exchange module 132, so that the coolant passes through the coolant heat exchange module 112, and heat transfer is implemented between the working medium heat exchange module 132 and the coolant heat exchange module 112, so that the temperature reduction rate of the coolant can be increased by using the low temperature of the refrigerant, and thus, the energy consumption of other cooling components of the coolant temperature adjusting system 110 in the process of reducing the temperature of the coolant can be reduced, and the overall operation cost is effectively saved.
Specifically, the air conditioner working medium may further include a heating working fluid, as shown in fig. 2, where the working medium heat exchange module 132 is disposed corresponding to the hydraulic oil heat exchange module 122, and when the heating working fluid of the air conditioner needs to be heated, the heating working fluid may pass through the working medium heat exchange module 132, and the hydraulic oil passes through the hydraulic oil heat exchange module 122, and heat transfer is implemented between the working medium heat exchange module 132 and the hydraulic oil heat exchange module 122, so that the temperature lifting rate of the heating working fluid can be increased by using the high temperature of the hydraulic oil, and thus, the energy consumption of other heating components in the heating process of the heating working fluid by the air conditioner working medium temperature regulating system 130 can be reduced, and the overall operation cost is effectively saved.
As shown in fig. 1 and 2, the thermal management system 100 may further include a temperature detecting assembly 140, a reversing valve assembly 170, and a control center 180, where the temperature detecting assembly 140 may be used to detect temperatures of different objects, adjust working positions of the reversing valve assembly 170, and may switch connecting pipelines between the coolant temperature control system 110, the hydraulic oil temperature control system 120, and the air conditioning system, and the control center 180 is communicatively connected to the temperature detecting assembly 140 and the reversing valve assembly 170.
In practical applications, the control center 180 may control the reversing valve assembly 170 to shift according to the detection signal of the temperature detection assembly 140, so as to switch the connecting pipelines among the coolant temperature adjustment system 110, the hydraulic oil temperature adjustment system 120 and the air conditioning system, and further enable the hydraulic oil heat exchange module 122 to implement heat transfer with the coolant heat exchange module 112, and/or enable the working medium heat exchange module 132 to implement heat transfer with the hydraulic oil heat exchange module 122. Thus, according to the foregoing description of the heat exchange process, the overall energy consumption of the thermal management system 100 during the cooling or heating process can be reduced by heat transfer during the heat exchange process, so that the overall operation cost can be effectively reduced.
The heat management system 100 provided in the embodiment of the invention includes a cooling liquid temperature adjusting system 110, a hydraulic oil temperature adjusting system 120, an air-conditioning working medium temperature adjusting system 130, a temperature detecting component 140, a reversing valve component 170 and a control center 180, wherein the cooling liquid temperature adjusting system 110 includes a cooling liquid heat exchange module 112, the hydraulic oil temperature adjusting system 120 includes a hydraulic oil heat exchange module 122, the air-conditioning working medium temperature adjusting system 130 includes a working medium heat exchange module 132, the temperature detecting component 140 is used for detecting the temperature of different targets, the reversing valve component 170 is used for switching connection pipelines between the cooling liquid temperature adjusting system 110, the hydraulic oil temperature adjusting system 120 and the air-conditioning working medium temperature adjusting system 130, the control center 180 is in communication connection with the temperature detecting component 140 and the reversing valve component 170, the control center 180 can control the reversing valve component 170 according to the detection signals of the temperature detecting component 140, so that the hydraulic oil heat exchange module 122 and the cooling liquid heat exchange module 112 can realize heat transfer, and/or the working medium heat exchange module 132 and the hydraulic oil heat exchange module 122 can realize heat transfer, thus, the heat loss can be reduced by using the high-temperature cooling liquid to heat the cooling liquid or the whole cooling medium system or the heat loss can be reduced, and the heat loss can be reduced in the whole cooling system is reduced or the heat loss can be reduced by using the low-temperature cooling medium temperature adjusting system.
As shown in fig. 1 and fig. 2, the working medium heat exchange module 132 may include a refrigerant heat exchange module 1321, where the refrigerant heat exchange module 1321 may be configured to accommodate an air-conditioning refrigerant, and specifically, after the air-conditioning is started, the air-conditioning refrigeration system 230 cools the cabin and reaches a corresponding temperature, and then cooling operation (specifically, described in detail later) needs to be performed on the cooling liquid, the temperature of the cooling liquid of the air-conditioning is in a lower state at this time, and the cooling liquid passes through the refrigerant heat exchange module 1321, in this case, the control center 180 may control the reversing valve assembly 170 to switch to a corresponding working position, so that the cooling liquid passes through the cooling liquid heat exchange module 112, and thus, the refrigerant heat exchange module 1321 and the cooling liquid heat exchange module 112 may implement heat transfer, and effectively use the low temperature of the cooling liquid to cool the cooling liquid, increase the cooling rate of the cooling liquid, and reduce energy waste and energy consumption of the thermal management system 100. Of course, the cooling medium should preferably provide cooling for the cockpit, if the cockpit does not drop to the corresponding temperature, the control center 180 may control the reversing valve assembly 170 to switch the working position, and the cooling liquid enters the cooling liquid heat exchange module 112, so as to avoid heat transfer between the cooling medium heat exchange module 1321 and the cooling liquid heat exchange module 112, and the specific control process will be described in detail later.
As shown in fig. 1 and 2, the working medium heat exchange module 132 may further include a heating working fluid heat exchange module 1322, where the heating working fluid heat exchange module 1322 may be configured to accommodate a heating working fluid, and the heating working fluid heat exchange module 1322 is disposed corresponding to the hydraulic oil heat exchange module 122, specifically, in a case that the temperature in the cockpit needs to be raised and the heating working fluid needs to be heated, the control center 180 may control the reversing valve assembly 170 to switch to a corresponding working position, so that the heating working fluid passes through the heating working fluid heat exchange module 1322, and the hydraulic oil passes through the hydraulic oil heat exchange module 122, so that heat transfer is implemented between the heating working fluid heat exchange module 1322 and the hydraulic oil heat exchange module 122, so that the heating working fluid is effectively heated by using the high temperature of the hydraulic oil, and energy loss when the air conditioning system heats the heating working fluid is reduced, and the overall running cost of the thermal management system 100 is effectively saved.
In an embodiment, the refrigerant heat exchange module 1321 and the heating working fluid heat exchange module 1322 may be a spiral tube, a wave-shaped tube, or the like.
As shown in fig. 1 and 2, the coolant heat exchange module 112 may include a battery coolant heat exchange module 1121, and the battery coolant heat exchange module 1121 may be used to accommodate battery coolant, on one hand, in the case where the battery 193 is operating normally, the battery 193 may be cooled by using low-temperature battery coolant, and on the other hand, before the battery 193 operates, the battery 193 may be preheated by using high-temperature battery coolant, so as to improve the operating efficiency of the battery 193. Under the condition that the battery 193 is preheated by the high-temperature battery cooling liquid, the battery cooling liquid heat exchange module 1121 is correspondingly arranged with the hydraulic oil heat exchange module 122, so that the control center 180 controls the reversing valve assembly 170 to be switched to the corresponding working position, the battery cooling liquid passes through the battery cooling liquid heat exchange module 1121, and the hydraulic oil passes through the hydraulic oil heat exchange module 122, so that heat transfer is realized between the battery cooling liquid heat exchange module 1121 and the hydraulic oil heat exchange module 122, the high temperature of the hydraulic oil can be utilized to heat the battery cooling liquid, the heat of the hydraulic oil is fully utilized, the energy loss is reduced, and the energy loss of the thermal management system 100 in the process of heating the battery cooling liquid is reduced, thereby effectively reducing the running cost.
As shown in fig. 1 and 2, the coolant heat exchange module 112 may further include a controller coolant heat exchange module 1122, where the controller coolant heat exchange module 1122 may be configured to hold a controller coolant that may be used to dissipate heat from the motor 212 and the controller 211 in the motor control system 210 during normal operation of the motor control system 210. Because the controller coolant heat exchange module 1122 is arranged corresponding to the coolant heat exchange module 1321, the control center 180 controls the reversing valve assembly 170 to switch to the corresponding working position, so that the controller coolant passes through the controller coolant heat exchange module 1122, and the air-conditioning coolant passes through the coolant heat exchange module 1321, so that the heat exchange between the controller coolant heat exchange module 1122 and the coolant heat exchange module 1321 can be realized, the low temperature of the air-conditioning coolant is utilized to cool the controller coolant, the energy loss of the thermal management system 100 in the process of cooling the controller coolant is reduced, and the overall operation cost is effectively reduced.
In an embodiment, the battery cooling liquid heat exchange module 1121 may also be disposed corresponding to the refrigerant heat exchange module 1321, so that when the battery cooling liquid passes through the battery cooling liquid heat exchange module 1121 and the air-conditioning refrigerant passes through the refrigerant heat exchange module 1321, the battery cooling liquid heat exchange module 1121 exchanges heat with the refrigerant heat exchange module 1321, and the battery cooling liquid is cooled by using the low temperature of the air-conditioning refrigerant.
As shown in fig. 1 and 2, the coolant temperature adjustment system 110 may include a coolant heat dissipation module 111, where the coolant heat dissipation module 111 is connected to a coolant heat exchange module 112, and the coolant heat dissipation module 111 may dissipate heat of the coolant to reduce the temperature of the coolant.
As shown in fig. 1 and 2, the hydraulic oil temperature adjustment system 120 may include a hydraulic oil heat dissipation module 121, where the hydraulic oil heat dissipation module 121 is connected with a hydraulic oil heat exchange module 122, and the hydraulic oil heat dissipation module 121 may dissipate heat of hydraulic oil, so that the temperature of the hydraulic oil is within a normal working range, and the safety of the engineering machinery is ensured.
As shown in fig. 1 and 2, the air-conditioning working medium temperature adjustment system 130 may include a working medium heat dissipation module 131, where the working medium heat dissipation module 131 is connected to the working medium heat exchange module 132, and the working medium heat dissipation module 131 may dissipate heat and cool an air-conditioning working medium, so that the air-conditioning working medium is convenient to cool the cockpit.
As shown in fig. 1 and 2, the coolant heat dissipation module 111 may include a battery coolant heat dissipation module 1111, where the battery coolant heat dissipation module 1111 may dissipate heat of the battery coolant, so as to reduce the temperature of the battery coolant, and facilitate the subsequent realization of good heat dissipation of the battery 193 by the battery coolant. In addition, the battery cooling liquid heat dissipation module 1111 is connected to the battery cooling liquid heat exchange module 1121, and in practical application, the battery cooling liquid can pass through the battery cooling liquid heat dissipation module 1111 and the battery cooling liquid heat exchange module 1121 at the same time, so as to effectively increase the cooling rate of the battery cooling liquid. Of course, in practical applications, the reversing valve assembly 170 may be controlled to switch the working position, so that the battery coolant only passes through the battery coolant heat dissipation module 1111 or only passes through the battery coolant heat exchange module 1121 to achieve the effect of reducing the temperature of the battery coolant.
As shown in fig. 1 and 2, the coolant heat dissipation module 111 may further include a controller coolant heat dissipation module 1112, where the controller coolant heat dissipation module 1112 may dissipate heat of the controller coolant, so as to reduce the temperature of the controller coolant, and facilitate the subsequent implementation of good heat dissipation effect of the controller coolant on the controller 211 and the motor 212. In addition, the controller coolant heat dissipation module 1112 is connected with the controller coolant heat exchange module 1122, and in practical application, the controller coolant can pass through the controller coolant heat dissipation module 1112 and the controller coolant heat exchange module 1122 at the same time, so that the cooling rate of the controller coolant is effectively increased. Of course, in practical applications, the change valve assembly 170 may be controlled to switch the working position, so that the controller coolant only passes through the controller coolant heat dissipation module 1112 or only passes through the controller coolant heat exchange module 1122 to achieve the effect of reducing the temperature of the controller coolant.
As shown in fig. 1 and 2, the thermal management system 100 may include a battery system 190 and a battery coolant heater 200, where the battery system 190 is communicatively connected to the control center 180, and the control center 180 may control the battery system 190 to start, shut down, adjust operating power, etc.; the battery cooling liquid heater 200 is connected with the battery system 190, the battery cooling liquid heater 200 is in communication connection with the control center 180, the control center 180 can control the battery cooling liquid heater 200 to start, close, adjust working power and the like, the battery cooling liquid heater 200 can heat battery cooling liquid, the temperature of the battery cooling liquid is improved, and the battery cooling liquid can conveniently preheat the battery 193 in the battery system 190 before the battery system 190 is started.
The battery system 190 may include a battery coolant accommodating tank 191, a first water pump 192, a battery 193, and the like, which will be described in detail later.
As shown in fig. 2, the battery coolant heat exchange module 1121 is connected to the battery system 190, and the battery coolant heat dissipation module 1111 is connected to the battery system 190, so that the battery coolant can flow through the battery coolant heat exchange module 1121, the battery coolant heat dissipation module 1111 and the battery system 190, which is beneficial to the heat dissipation of the battery coolant by the battery coolant heat exchange module 1121 and the battery coolant heat dissipation module 1111, and the heat dissipation or the preheating of the battery 193 in the battery system 190 by the battery coolant.
As shown in fig. 2, the reversing valve assembly 170 may include a first reversing valve 171 and a second reversing valve 172, the first reversing valve 171 being connected to the battery system 190 and the battery coolant heat dissipation module 1111, the second reversing valve 172 being connected to the first reversing valve 171, the battery coolant heater 200, and the battery coolant heat exchange module 1121, it being understood that adjusting the operating position of the first reversing valve 171 and/or the second reversing valve 172 may change the flow line of the battery coolant so that the battery coolant may pass through the battery coolant heat dissipation module 1111 and/or the battery coolant heat exchange module 1121.
Specifically, taking fig. 2 as an example, if the first reversing valve 171 is in the left position, the battery coolant passes through the battery coolant heat dissipation module 1111 and then passes through the battery system 190, and in this process, the battery coolant cools the battery 193 in the battery system 190, and the battery coolant heat dissipation module 1111 dissipates heat of the battery coolant; if the first reversing valve 171 is in the right position and the second reversing valve 172 is in the left position, the battery coolant passes through the battery coolant heater 200 and then through the battery system 190, and in this process, the battery coolant heater 200 heats the battery coolant, and the heated battery coolant preheats the battery 193 in the battery system 190; if the first reversing valve 171 is in the right position and the second reversing valve 172 is in the right position, the battery coolant passes through the battery coolant heat exchange module 1121 and then passes through the battery system 190, and in this process, heat transfer is realized between the battery coolant heat exchange module 1121 and the hydraulic oil heat exchange module 122, and the heat of the hydraulic oil is used to heat the battery coolant.
As shown in fig. 2, the temperature detecting assembly 140 may include a first temperature sensor 141, a second temperature sensor 142, a third temperature sensor 143, a fourth temperature sensor 144, and a first hydraulic oil temperature sensor 155, the first temperature sensor 141 being communicatively connected to the control center 180, the second temperature sensor 142 being communicatively connected to the battery cooling fluid output from the battery cooling fluid heat dissipation module 1111, the third temperature sensor 143 being communicatively connected to the control center 180, the third temperature sensor 143 being communicatively connected to the battery cooling fluid heat exchange module 1121, the fourth temperature sensor 144 being communicatively connected to the control center 180, the first hydraulic oil temperature sensor 155 being able to detect the temperature of the hydraulic oil heat exchange module 122.
Specifically, as shown in fig. 2, after the working machine starts to operate, the temperature of the hydraulic oil gradually increases, and in the case where the battery system 190 needs to be heated, that is, in the case where the temperature value detected by the first temperature sensor 141 is less than the battery minimum temperature threshold value, if the temperature of the hydraulic oil detected by the first hydraulic oil temperature sensor 155 is greater than the temperature detected by the fourth temperature sensor 144, it may be considered that the coolant may be heated to a predetermined temperature by the hydraulic oil, at which time the control center 180 may control the first reversing valve 171 to be in the right position and the second reversing valve 172 to be in the right position, so that the battery coolant passes through the battery coolant heat exchange module 1121 and then passes through the battery system 190, and in this process, heat transfer is achieved between the battery coolant heat exchange module 1121 and the hydraulic oil heat exchange module 122.
Specifically, as shown in fig. 2, if the temperature detected by the third temperature sensor 143 is greater than the temperature of the hydraulic oil detected by the first hydraulic oil temperature sensor 155, it may be considered that the current hydraulic oil is no longer able to heat the battery coolant, and at this time, the control center 180 may control the first reversing valve 171 to be in the right position and the second reversing valve 172 to be in the left position, and heat the battery coolant through the battery coolant heater 200.
As shown in fig. 2, if the temperature detected by the first temperature sensor 141 is greater than the maximum battery temperature threshold, the first reversing valve 171 may be controlled to be in the left position, and the battery coolant may be cooled by the battery coolant cooling module 1111. In addition, during the process of cooling the battery coolant by the battery coolant cooling module 1111, the temperature value detected by the second temperature sensor 142 may be detected to adjust the rate of cooling the battery coolant by the battery coolant cooling module 1111 and the movement rate of the battery coolant, which will be described in detail later.
As shown in fig. 1 and 2, the thermal management system 100 may include a motor control system 210, where the motor control system 210 is communicatively connected to the control center 180, the control center 180 may control the motor control system 210 to start, close, adjust operating power, etc., the controller coolant heat exchange module 1122 is disposed corresponding to the refrigerant heat exchange module 1321, and the controller coolant heat exchange module 1122 is connected to the motor control system 210, and correspondingly, the reversing valve assembly 170 may include a third reversing valve 173 and a fourth reversing valve 174, where the third reversing valve 173 is connected to the motor control system 210, the controller coolant heat dissipation module 1112, and the controller coolant heat exchange module 1122, and the fourth reversing valve 174 is connected to the controller coolant heat dissipation module 1112, the controller coolant heat exchange module 1122, and the motor control system 210, and it should be understood that adjusting the operating positions of the third reversing valve 173 and the fourth reversing valve 174 may change the flow line of the controller coolant, such that the controller coolant passes through the controller coolant heat dissipation module 1112 and/or the controller coolant heat exchange module 1122.
The motor control system 210 may include a controller 211, a motor 212, a second water pump 213, a controller coolant tank 214, and the like, which will be described in detail later.
Specifically, taking fig. 2 as an example, if the third reversing valve 173 is in the left position and the fourth reversing valve 174 is in the right position, the controller coolant may pass through the controller coolant heat dissipation module 1112 and then pass through the motor control system 210, and during this process, the controller coolant cools the controller 211 and the motor 212 in the motor control system 210, and the controller coolant heat dissipation module 1112 dissipates the controller coolant; if the third reversing valve 173 is at the left position and the fourth reversing valve 174 is at the left position, the controller coolant may pass through the controller coolant heat dissipation module 1112, the controller coolant heat exchange module 1122 and the motor control system 210, in this process, the controller coolant heat dissipation module 1112 dissipates heat of the controller coolant, and the controller coolant heat exchange module 1122 and the refrigerant heat exchange module 1321 realize heat transfer, and the low temperature of the air-conditioning refrigerant is used to cool the controller coolant, so as to increase the cooling rate of the controller coolant; if the third reversing valve 173 is at the right position, the controller coolant may pass through the controller coolant heat exchange module 1122 and then pass through the motor control system 210, and directly utilize the low temperature of the air conditioning refrigerant to cool the controller coolant, so as to reduce the power consumed by the controller coolant heat dissipation module 1112.
As shown in fig. 1 and 2, the temperature detection assembly 140 may include a fifth temperature sensor 145, a sixth temperature sensor 146, a seventh temperature sensor 147, an eighth temperature sensor 148, a first coolant temperature sensor 156, and a first cabin temperature sensor 157, the fifth temperature sensor 145 may be communicatively coupled to the control center 180, the fifth temperature sensor 145 may detect a temperature of a controller 211 in the motor control system 210, the sixth temperature sensor 146 may be communicatively coupled to the control center 180, the sixth temperature sensor 146 may detect a temperature of a motor 212 in the motor control system 210, the seventh temperature sensor 147 may be communicatively coupled to the control center 180, the seventh temperature sensor 147 may detect a temperature of a controller coolant outputted from the controller coolant heat sink module 1112, the eighth temperature sensor 148 may be communicatively coupled to the control center 180, the eighth temperature sensor 148 may detect a temperature of a controller coolant outputted from the controller coolant heat exchange module 1122, the first coolant temperature sensor 156 may be communicatively coupled to the control center 180, the first temperature sensor 146 may detect a temperature of a controller coolant 212 outputted from the controller coolant heat exchange module 1122, and the first cabin temperature sensor 157 may be communicatively coupled to the first cabin temperature sensor 157.
Specifically, as shown in fig. 2, if the temperature detected by the fifth temperature sensor is greater than the maximum temperature threshold of the controller and/or the temperature detected by the sixth temperature sensor 146 is greater than the maximum temperature threshold of the motor, the control center 180 may control the third reversing valve 173 to be in the left position, the fourth reversing valve 174 to be in the right position, and the controller coolant heat dissipation module 1112 dissipates heat of the controller coolant.
Specifically, as shown in fig. 2, when the temperature detected by the first cabin temperature sensor 157 reaches the predetermined cabin temperature, if the temperature detected by the first cabin temperature sensor 157 reaches the predetermined cabin temperature and the temperature detected by the seventh temperature sensor 147 is greater than the temperature detected by the first coolant temperature sensor 156, the air-conditioning coolant may be considered to be cooled by the low temperature on the premise of ensuring that the cabin temperature reaches the predetermined cabin temperature, at this time, the control center 180 may control the third reversing valve 173 to be in the left position, the fourth reversing valve 174 to be in the left position, the controller coolant heat dissipation module 1112 dissipates heat to the controller coolant, and the controller coolant heat exchange module 1122 exchanges heat with the coolant heat exchange module 1321 to further cool the controller coolant.
Specifically, as shown in fig. 2, if the temperature detected by the eighth temperature sensor 148 is less than the temperature detected by the first coolant temperature sensor 156, or the temperature detected by the first cabin temperature sensor 157 does not reach the predetermined cabin temperature, then it may be considered that the coolant cannot cool the controller coolant in order to ensure that the cabin reaches the predetermined cabin temperature, and at this time, the control center 180 may control the third reversing valve 173 to be in the left position and the fourth reversing valve 174 to be in the right position.
It should be noted that, as shown in fig. 2, in the process of radiating the controller coolant by the controller coolant radiating module 1112, the rate of radiating the controller coolant by the controller coolant radiating module 1112 and the movement rate of the controller coolant may be adjusted by detecting the temperature value detected by the seventh temperature sensor 147, and the specific adjustment will be described in detail later.
As shown in fig. 1 and 2, the thermal management system 100 may include an air conditioning and heating system 220, the air conditioning and heating system 220 being in communication with the control center 180, the air conditioning and heating system 220 may raise the temperature within the cockpit by heating the working fluid. The heating working fluid heat exchange module 1322 is connected to the air conditioner heating system 220, and the heating working fluid heat exchange module 1322 is disposed corresponding to the hydraulic oil heat exchange module 122; correspondingly, the reversing valve assembly 170 may include a fifth reversing valve 175, the fifth reversing valve 175 connecting the air conditioning heating system 220 and the working medium heat exchange module 132, it being understood that adjusting the operating position of the fifth reversing valve 175 may change the flow line of the heating working fluid such that the heating working fluid passes or does not pass through the working medium heat exchange module 132.
The air conditioning and heating system 220 may include a warm air core 221, a working fluid heater 222, a heating working fluid pump 223, etc., where the working fluid heater 222 is communicatively connected to the control center 180, and the control center 180 may control the working fluid heater 222 to be started, closed, adjust working power, etc., and after the working fluid heater 222 is started, the heating working fluid may be heated.
Specifically, taking fig. 2 as an example, if the fifth reversing valve 175 is in the upper position, the control center 180 may control the working fluid heater 222 to start, and the heating working fluid does not pass through the heating working fluid heat exchange module 1322, and the working fluid heater 222 heats the heating working fluid; if the fifth reversing valve 175 is in the lower position, the heating working fluid may pass through the heating working fluid heat exchange module 1322, the hydraulic oil heat exchange module 122 and the heating working fluid heat exchange module 1322 to realize heat transfer, and the heating working fluid may be heated by using the high temperature of the hydraulic oil.
As shown in fig. 2, the temperature detection assembly 140 may further include a first heating working fluid temperature sensor 158, a first hydraulic oil temperature sensor 155, and a first cabin temperature sensor 157, wherein the first heating working fluid temperature sensor 158 is communicatively connected to the control center 180, the first heating working fluid temperature sensor 158 may detect a temperature of the heating working fluid in the heating system working circuit, the first hydraulic oil temperature sensor 155 is communicatively connected to the control center 180, the first hydraulic oil temperature sensor 155 may detect a temperature of the hydraulic oil output from the hydraulic oil heat exchange module 122, the first cabin temperature sensor 157 is communicatively connected to the control center 180, and the first cabin temperature sensor 157 may detect a temperature in the cabin.
Specifically, in the case where the temperature of the cockpit needs to be raised, if the temperature detected by the first hydraulic oil temperature sensor 155 is greater than the temperature detected by the first heating working fluid temperature sensor 158, then it may be considered that the heat generated by the hydraulic oil at this time may heat the first heating working fluid, at this time, the control center 180 may control the fifth reversing valve 175 to be in a lower position, and the heating working fluid may pass through the heating working fluid heat exchange module 1322, where the hydraulic oil heat exchange module 122 and the heating working fluid heat exchange module 1322 implement heat transfer; if the temperature detected by the first hydraulic oil temperature sensor 155 is less than the temperature detected by the first heating working fluid temperature sensor 158, the temperature of the hydraulic oil is lower than the temperature detected by the first heating working fluid temperature sensor 158, and the heating working fluid cannot be heated by the temperature of the hydraulic oil, so the control center 180 can control the fifth reversing valve 175 to be in the upper position, and then the working fluid heater 222 is started, and the working fluid heater 222 heats the heating working fluid.
Specifically, as shown in fig. 2, when the temperature detected by the first cabin temperature sensor 157 exceeds the set temperature range in the case where the fifth directional valve 175 is in the lower position, it is considered that the temperature of the heating operation liquid is high, and the heating operation is not performed.
FIG. 3 is a block diagram of a thermal management system according to another exemplary embodiment of the present invention. FIG. 4 is a schematic diagram of a thermal management system provided in another exemplary embodiment of the present invention. The specific functions of the battery system 190 and the battery coolant heater 200 in fig. 4 are the same as those of the battery system 190 and the battery coolant heater 200 in fig. 2. As shown in fig. 3 and 4, the working medium heat exchange module 132 may include a first coolant heat exchange module 1323, the hydraulic oil heat exchange module 122 may include a first hydraulic oil heat exchange module 123, the first hydraulic oil heat exchange module 123 may include a first battery coolant heat exchange module 1123, the coolant heat dissipation module 111 may include a battery coolant heat dissipation module 1111, specifically, the first battery coolant heat exchange module 1123 is disposed corresponding to the first hydraulic oil heat exchange module 123, the first battery coolant heat exchange module 1123 is connected with the battery system 190, the second battery coolant heat exchange module 1124 is disposed corresponding to the first coolant heat exchange module 1323, and the battery coolant heat dissipation module 1111 connects the battery system 190 and the second battery coolant heat exchange module 1124; correspondingly, the reversing valve assembly 170 may include a sixth reversing valve 176 and a seventh reversing valve 177, the sixth reversing valve 176 connecting the battery system 190 and the first battery coolant heat exchange module 1123, the seventh reversing valve 177 connecting the sixth reversing valve 176, the second battery coolant heat exchange module 1124, and the battery coolant heat exchange module 1111, it being understood that adjusting the operating positions of the sixth reversing valve 176 and the seventh reversing valve 177 may change the flow lines of the battery coolant such that the battery coolant passes through at least one of the battery coolant heat exchange module 1111, the first battery coolant heat exchange module 1123, and the second battery coolant heat exchange module 1124.
Specifically, taking fig. 4 as an example, if the sixth reversing valve 176 is at the left position and the seventh reversing valve 177 is at the left position, the battery coolant passes through the second battery coolant heat exchange module 1124 and the battery coolant heat dissipation module 1111, and then passes through the battery system 190, during this process, the battery coolant cools the battery 193 in the battery system 190, the battery coolant heat dissipation module 1111 dissipates heat of the battery coolant, the second battery coolant heat exchange module 1124 and the first refrigerant heat exchange module 1323 realize heat transfer, the battery coolant is cooled by using the low temperature of the air-conditioning refrigerant, and the cooling rate of the controller coolant is improved; if the sixth reversing valve 176 is at the left position and the seventh reversing valve 177 is at the right position, the battery cooling liquid passes through the battery cooling liquid heat dissipation module 1111 and then passes through the battery system 190, and in the process, the battery cooling liquid cools the battery 193 in the battery system 190, and the battery cooling liquid heat dissipation module 1111 dissipates the battery cooling liquid; if the sixth reversing valve 176 is in the right position, the battery coolant passes through the first battery coolant radiator and the battery coolant heater 200 and then through the battery system 190, so that the battery coolant heater 200 may heat the battery coolant in the case where the battery coolant heater 200 is activated, or may heat the battery coolant using the heat of the hydraulic oil in the case where heat transfer between the first battery coolant heat exchange module 1123 and the first hydraulic oil heat exchange module 123 is possible.
It should be noted that, the heat exchange module integrated by the first hydraulic oil heat exchange module 123 and the first battery coolant heat exchange module 1123 and the heat exchange module integrated by the first refrigerant heat exchange module 1323 and the second battery coolant heat exchange module 1124 may be independent of each other, so that not only the two heat exchange processes may be avoided from being affected by each other, but also the two independent integrated heat exchange modules may flexibly adjust the arrangement positions according to the actual situation, so that the subsequent laying of the pipes and the cables is more convenient, and the overall structure of the thermal management system 100 is effectively simplified.
As shown in fig. 4, the temperature detection assembly 140 may include a ninth temperature sensor 149, a tenth temperature sensor 150, an eleventh temperature sensor 151, a second hydraulic oil temperature sensor 159, a second coolant temperature sensor 160, and a second cabin temperature sensor 161, where the ninth temperature sensor 149 is communicatively connected to the control center 180, the ninth temperature sensor 149 may detect the temperature of the battery 193 in the battery system 190, the tenth temperature sensor 150 is communicatively connected to the control center 180, the tenth temperature sensor 150 may detect the temperature of the battery coolant outputted from the battery coolant heat dissipation module 1111, the eleventh temperature sensor 151 is communicatively connected to the control center 180, the eleventh temperature sensor 151 may detect the temperature of the battery coolant outputted from the battery coolant heater 200, the second hydraulic oil temperature sensor 159 is communicatively connected to the control center 180, the second hydraulic oil temperature sensor 159 may detect the temperature of the hydraulic oil outputted from the first hydraulic oil heat exchange module 123, the second coolant temperature sensor 160 is communicatively connected to the control center 180, the second temperature sensor 150 may detect the temperature of the coolant outputted from the first cabin heat exchange module 123, and the second cabin temperature sensor 157 may detect the coolant in the second cabin temperature sensor 1323.
As shown in fig. 4, the first refrigerant heat exchange module 1323 and a second refrigerant heat exchange module 1324 (described later) are connected in series, and the temperature detected by the second refrigerant temperature sensor 160 may be indicative of the temperature of the refrigerant output from the first refrigerant heat exchange module 1323 or the temperature of the refrigerant output from the second refrigerant heat exchange module 1324.
Specifically, as shown in fig. 4, after the working machine starts to work, the temperature of the hydraulic oil gradually increases, and in the case where the battery system 190 needs to be heated, that is, in the case where the temperature value detected by the ninth temperature sensor 149 is less than the minimum battery temperature threshold, the control center 180 may control the sixth reversing valve 176 to be at the right position, and the battery coolant heater 200 may heat the battery coolant, and in this process, if the temperature value detected by the second hydraulic oil temperature sensor 159 is greater than the temperature value detected by the eleventh temperature sensor 151, the control center 180 may control the battery coolant heater 200 to stop working, and heat the battery coolant by using the heat of the hydraulic oil through the heat transfer process between the first battery coolant heat exchange module 1123 and the first hydraulic oil heat exchange module 123.
Specifically, as shown in fig. 4, in the case where the temperature value detected by the ninth temperature sensor 149 is greater than the maximum temperature threshold value of the battery, the control center 180 may control the sixth reversing valve 176 to be in the left position and the seventh reversing valve 177 to be in the right position, and the battery coolant heat dissipation module 1111 dissipates heat of the battery coolant; on this basis, the engineering machine starts the air conditioning and refrigerating system 230, and the temperature value detected by the second cabin temperature sensor 161 reaches the predetermined temperature value, at this time, if the temperature value detected by the tenth temperature sensor 150 is greater than the temperature value detected by the second refrigerant temperature sensor 160, the seventh reversing valve 177 may be controlled to be in the left position, the sixth reversing valve 176 is still kept in the left position, the second battery cooling liquid heat exchange module 1124 and the first refrigerant heat exchange module 1323 realize heat transfer, and the battery cooling liquid is cooled by using the low temperature of the air conditioning refrigerant.
As shown in fig. 3 and 4, the thermal management system 100 may include a motor control system 210, the motor control system 210 is communicatively connected with the control center 180, the working medium heat exchange module 132 includes a second refrigerant heat exchange module 1324, the coolant heat exchange module 112 includes a controller coolant heat exchange module 1122, the controller coolant heat exchange module 1122 is disposed corresponding to the second refrigerant heat exchange module 1324, and the controller coolant heat exchange module 1122 is connected with the motor control system 210, the coolant heat dissipation module 111 includes a controller coolant heat dissipation module 1112, and the controller coolant heat dissipation module 1112 is connected with the motor control system 210; correspondingly, the reversing valve assembly 170 may include an eighth reversing valve 178, the eighth reversing valve 178 connecting the controller coolant heat exchange module 1122, the controller coolant heat sink module 1112, and the motor control system 210, it being understood that adjusting the operating position of the eighth reversing valve 178 may change the flow line of the controller coolant such that the controller coolant passes or does not pass through the controller coolant heat exchange module 1122.
Specifically, taking fig. 4 as an example, in the case where the eighth reversing valve 178 is in the right position, the controller coolant may pass through the controller coolant heat dissipation module 1112 and then pass through the motor control system 210, and in this process, the controller coolant cools the controller 211 and the motor 212 in the motor control system 210, and the controller coolant heat dissipation module 1112 dissipates the controller coolant; under the condition that the eighth reversing valve 178 is at the left position, the controller coolant can pass through the controller coolant heat dissipation module 1112, the controller coolant heat exchange module 1122 and the motor control system 210, in the process, the controller coolant heat dissipation module 1112 dissipates heat of the controller coolant, and the controller coolant heat exchange module 1122 and the second refrigerant heat exchange module 1324 realize heat transfer, and the low temperature of the air-conditioning refrigerant is utilized to cool the controller coolant, so that the cooling rate of the controller coolant is improved.
As shown in fig. 4, the temperature detection assembly 140 may include a twelfth temperature sensor 152, a thirteenth temperature sensor 153, a fourteenth temperature sensor 154, a second refrigerant temperature sensor 160, and a second cabin temperature sensor 161, the twelfth temperature sensor 152 being communicatively connected to the control center 180 for detecting the temperature of the controller 211 in the motor control system 210, the thirteenth temperature sensor 153 being communicatively connected to the control center 180 for detecting the temperature of the motor 212 in the motor control system 210, the fourteenth temperature sensor 154 being communicatively connected to the control center 180 for detecting the temperature of the controller coolant input to the motor control system 210, the second refrigerant temperature sensor 160 being communicatively connected to the control center 180 for detecting the temperature of the refrigerant output from the second refrigerant heat exchange module 1324, the second cabin temperature sensor 161 being communicatively connected to the control center 180 for detecting the temperature of the cabin.
Specifically, as shown in fig. 4, if the temperature detected by the twelfth temperature sensor 152 is greater than the maximum temperature threshold of the controller and/or the temperature detected by the thirteenth temperature sensor 153 is greater than the maximum temperature threshold of the motor, the control center 180 may control the eighth reversing valve 178 to be at the right position, and the controller coolant heat dissipation module 1112 dissipates heat of the controller coolant; on the basis, if the temperature detected by the second cabin temperature sensor 161 reaches the predetermined cabin temperature and the temperature detected by the fourteenth temperature sensor 154 is greater than the temperature detected by the second refrigerant heat exchange module 1324, the air-conditioning refrigerant can be considered to cool the controller coolant by using low temperature on the premise of ensuring that the cabin temperature reaches the predetermined cabin temperature, at this time, the control center 180 can control the third reversing valve 173 to be at the left position and the fourth reversing valve 174 to be at the left position, the controller coolant heat dissipation module 1112 dissipates heat of the controller coolant, and the controller coolant heat exchange module 1122 exchanges heat with the refrigerant heat exchange module 1321 to further cool the controller coolant.
Specifically, as shown in fig. 4, if the temperature detected by the fourteenth temperature sensor 154 is less than the temperature detected by the second refrigerant temperature sensor 160 or the temperature detected by the second cabin temperature sensor 161 does not reach the predetermined cabin temperature, the refrigerant may be considered to be unable to cool the controller coolant in order to ensure that the cabin reaches the predetermined cabin temperature, and the control center 180 may control the eighth switching valve 178 to be in the right position.
It should be noted that, as shown in fig. 4, in the process of radiating the controller coolant by the controller coolant radiating module 1112, the speed of radiating the controller coolant by the controller coolant radiating module 1112 and the movement speed of the controller coolant may be adjusted by detecting the temperature value detected by the fourteenth temperature sensor 154, and the specific adjustment will be described in detail later.
As shown in fig. 3 and 4, the thermal management system 100 may include an air conditioning and heating system 220, the air conditioning and heating system 220 is communicatively connected with the control center 180, the hydraulic oil heat exchange module 122 includes a second hydraulic oil heat exchange module 124, the working medium heat exchange module 132 includes a heating working fluid heat exchange module 1322, the heating working fluid heat exchange module 1322 may accommodate an air conditioning and heating working fluid, the heating working fluid heat exchange module 1322 is connected with the air conditioning and heating system 220, and the heating working fluid heat exchange module 1322 is disposed corresponding to the second hydraulic oil heat exchange module 124; correspondingly, the reversing valve assembly 170 may include a ninth reversing valve 179, the ninth reversing valve 179 connecting the air conditioning and heating system 220 and the working medium heat exchange module 132, it being understood that adjusting the operating position of the ninth reversing valve 179 may alter the flow path of the heating working fluid such that the heating working fluid passes or does not pass through the working medium heat exchange module 132.
Specifically, taking fig. 4 as an example, if the ninth reversing valve 179 is in the upper position, the control center 180 may control the working fluid heater 222 to start, and the heating working fluid does not pass through the heating working fluid heat exchange module 1322, and the working fluid heater 222 heats the heating working fluid; if the ninth reversing valve 179 is in the lower position, the heating working fluid can pass through the heating working fluid heat exchange module 1322, the second hydraulic oil heat exchange module 124 and the heating working fluid heat exchange module 1322 to realize heat transfer, and the heating working fluid can be heated by using the high temperature of the hydraulic oil.
As shown in fig. 4, the temperature detection assembly 140 may include a second heating working fluid temperature sensor 162, a second hydraulic oil temperature sensor 159, and a second cabin temperature sensor 161, the second heating working fluid temperature sensor 162 being communicatively connected to the control center 180, the second heating working fluid temperature sensor 162 being for detecting the temperature of the heating working fluid in the heating system working circuit, the second hydraulic oil temperature sensor 159 being communicatively connected to the control center 180, the second hydraulic oil temperature sensor 159 being for detecting the temperature of the hydraulic oil output from the second hydraulic oil heat exchange module 124, the second cabin temperature sensor 161 being communicatively connected to the control center 180, the second cabin temperature sensor 161 being for detecting the temperature within the cabin.
Specifically, in the case where the temperature of the cockpit needs to be raised, if the temperature detected by the second hydraulic oil temperature sensor 159 is greater than the temperature detected by the second heating working fluid temperature sensor 162, then it may be considered that the heat generated by the hydraulic oil at this time may heat the second heating working fluid, at this time, the control center 180 may control the ninth reversing valve 179 to be in a lower position, and the heating working fluid may pass through the heating working fluid heat exchange module 1322, where the second hydraulic oil heat exchange module 124 and the heating working fluid heat exchange module 1322 implement heat transfer; if the temperature detected by the second hydraulic oil temperature sensor 159 is lower than the temperature detected by the second heating working fluid temperature sensor 162, the temperature of the hydraulic oil is lower than the temperature detected by the second heating working fluid temperature sensor 162, and the heating working fluid cannot be heated by the temperature of the hydraulic oil, so the control center 180 may control the ninth reversing valve 179 to be in the upper position, and then the working fluid heater 222 is started, and the working fluid heater 222 heats the heating working fluid.
As shown in fig. 2 and 4, the battery system 190 may include a battery coolant accommodating tank 191, a first water pump 192, and a battery 193, where the battery coolant accommodating tank 191, the first water pump 192, and the battery 193 are sequentially connected, the battery coolant accommodating chamber is connected to the coolant heat dissipation module 111 and the coolant heat exchange module 112, the battery 193 is connected to the coolant heat dissipation module 111 and the coolant heat exchange module 112, the first water pump 192 is communicatively connected to the control center 180, and in practice, the control center 180 may control the rotation speed of the first water pump 192 according to the temperature detected by the temperature detection assembly 140, thereby controlling the flow rate of the battery coolant.
Specifically, in fig. 2, in case that the temperature detected by the first temperature sensor 141 is greater than the maximum temperature threshold of the battery, if the temperature detected by the first temperature sensor 141 is continuously increased, it may be considered that the temperature of the battery 193 is gradually increased, the cooling effect of the battery coolant on the battery 193 is not significant, and in this process, the control center 180 may control the rotation speed of the first water pump 192 to be gradually increased, thereby increasing the flow rate of the battery coolant, thereby increasing the cooling rate of the battery coolant on the battery 193, and increasing the cooling effect of the battery 193. It should be appreciated that, in the case where the temperature detected by the first temperature sensor is between the minimum temperature threshold value and the maximum temperature threshold value of the battery, then the temperature of the battery 193 may be considered to be in a normal state, and the control center 180 may maintain the current rotation speed of the first water pump 192.
Similarly, in fig. 4, in the case where the temperature detected by the ninth temperature sensor 149 is greater than the maximum temperature threshold of the battery, if the temperature detected by the ninth temperature sensor 149 is continuously increased, it may be considered that the temperature of the battery 193 is gradually increased and the cooling effect of the battery coolant on the battery 193 is insignificant, in which process the control center 180 may control the rotation speed of the first water pump 192 to be gradually increased to increase the flow rate of the battery coolant, thereby increasing the cooling rate of the battery coolant on the battery 193 and increasing the cooling effect of the battery 193. It should be appreciated that, in the case where the temperature detected by the first temperature sensor is between the minimum temperature threshold value and the maximum temperature threshold value of the battery, then the temperature of the battery 193 may be considered to be in a normal state, and the control center 180 may control the first water pump 192 to maintain the current rotation speed.
As shown in fig. 2 and 4, the motor control system 210 includes a controller 211, a motor 212, a second water pump 213, and a controller coolant tank 214, where the controller 211 can control the motor 212 to start and stop, adjust the rotation speed, etc., the motor 212, the second water pump 213, and the controller coolant tank 214 are sequentially connected, the motor 212 is connected to the coolant heat dissipation module 111 and/or the coolant heat exchange module 112, the controller coolant tank 214 is connected to the coolant heat dissipation module 111 and the coolant heat exchange module 112, the second water pump 213 is communicatively connected to the control center 180, and in practical application, the control center 180 can control the rotation speed of the second water pump 213 according to the temperature detected by the temperature detection assembly 140, thereby controlling the flow rate of the battery coolant.
Specifically, in fig. 2, in the case where the temperature detected by the fifth temperature sensor 145 is greater than the controller maximum temperature threshold and/or the temperature detected by the sixth temperature sensor 146 is greater than the motor maximum temperature threshold, if the temperature detected by the fifth temperature sensor 145 and/or the sixth temperature sensor 146 is continuously increased, it may be considered that the temperature of the controller 211 and/or the motor 212 is gradually increased, the temperature-reducing effect of the controller coolant on the controller 211 and/or the motor 212 is not significant, and in this process, the control center 180 may control the rotational speed of the second water pump 213 to gradually increase, and increase the flow rate of the controller coolant, thereby increasing the cooling rate of the controller coolant on the controller 211 and/or the motor 212, and increasing the temperature-reducing effect of the controller 211 and/or the motor 212. It should be understood that, in the case that the temperature detected by the fifth temperature sensor 145 is between the controller minimum temperature threshold and the controller maximum temperature threshold, and the temperature detected by the sixth temperature sensor 146 is between the motor minimum temperature threshold and the motor maximum temperature threshold, the temperatures of the controller 211 and the motor 212 may be considered to be in a normal state, and the control center 180 may control the second water pump 213 to maintain the current rotation speed.
Similarly, as shown in fig. 4, in the case where the temperature detected by the twelfth temperature sensor 152 is greater than the controller maximum temperature threshold and/or the temperature detected by the thirteenth temperature sensor 153 is greater than the motor maximum temperature threshold, if the temperature detected by the twelfth temperature sensor 152 and/or the thirteenth temperature sensor 153 continues to rise, it may be considered that the temperature of the controller 211 and/or the motor 212 is gradually rising, the temperature-reducing effect of the controller coolant on the controller 211 and/or the motor 212 is not significant, and in the process, the control center 180 may control the rotation speed of the second water pump 213 to gradually rise, and increase the flow rate of the controller coolant, thereby increasing the cooling rate of the controller coolant on the controller 211 and/or the motor 212, and increasing the temperature-reducing effect of the controller 211 and/or the motor 212. It should be understood that, in the case where the temperature detected by the twelfth temperature sensor 152 is between the controller minimum temperature threshold and the controller maximum temperature threshold, and the temperature detected by the thirteenth temperature sensor 153 is between the motor minimum temperature threshold and the motor maximum temperature threshold, then the temperatures of the controller 211 and the motor 212 may be considered to be in a normal state, and the control center 180 may control the second water pump 213 to maintain the current rotation speed.
As shown in fig. 2 and fig. 4, the thermal management system 100 may include a fan 240, where the fan 240 is disposed corresponding to the coolant heat dissipation module 111, the hydraulic oil heat dissipation module 121, and the working medium heat dissipation module 131, and the fan 240 is communicatively connected to the control center 180, and in practical application, the control center 180 may control the rotation speed of the fan 240 according to the detection signal of the temperature detection assembly 140.
Specifically, in fig. 2, in case that the temperature detected by the first temperature sensor 141 is greater than the maximum temperature threshold of the battery, if the temperature detected by the first temperature sensor 141 is continuously increased, it may be considered that the temperature of the battery 193 is gradually increased and the cooling effect of the battery coolant on the battery 193 is not significant, in which process the control center 180 may control the rotation speed of the fan 240 to be gradually increased and increase the heat dissipation rate of the battery coolant by the battery coolant heat dissipation module 1111, thereby increasing the cooling effect of the battery coolant on the battery 193. It should be appreciated that in the case where the temperature detected by the first temperature sensor is between the minimum and maximum temperature thresholds of the battery, then the temperature of the battery 193 may be considered to be in a normal state, and the control center 180 may control the fan 240 to maintain the current rotational speed.
Similarly, in fig. 4, in the case where the temperature detected by the ninth temperature sensor 149 is greater than the maximum temperature threshold of the battery, if the temperature detected by the ninth temperature sensor 149 is continuously increased, it may be considered that the temperature of the battery 193 is gradually increased and the cooling effect of the battery coolant on the battery 193 is insignificant, in which process the control center 180 may control the rotational speed of the fan 240 to be gradually increased to increase the flow rate of the battery coolant, thereby increasing the cooling rate of the battery coolant on the battery 193 and increasing the cooling effect of the battery 193. It should be appreciated that in the case where the temperature detected by the first temperature sensor is between the minimum and maximum temperature thresholds of the battery, then the temperature of the battery 193 may be considered to be in a normal state, and the control center 180 may control the fan 240 to maintain the current rotational speed.
Specifically, in fig. 2, in the case where the temperature detected by the fifth temperature sensor 145 is greater than the controller maximum temperature threshold and/or the temperature detected by the sixth temperature sensor 146 is greater than the motor maximum temperature threshold, if the temperature detected by the fifth temperature sensor 145 and/or the sixth temperature sensor 146 continuously increases, it may be considered that the temperature of the controller 211 and/or the motor 212 gradually increases, the cooling effect of the controller coolant on the controller 211 and/or the motor 212 is not significant, and during this process, the control center 180 may control the rotational speed of the fan 240 to gradually increase, thereby increasing the cooling rate of the fan 240 on the controller coolant heat dissipation module 1112, and further increasing the cooling rate of the controller coolant on the controller 211 and/or the motor 212. It should be appreciated that in the case where the temperature detected by the fifth temperature sensor 145 is between the controller minimum temperature threshold and the controller maximum temperature threshold, and the temperature detected by the sixth temperature sensor 146 is between the motor minimum temperature threshold and the motor maximum temperature threshold, then the temperatures of the controller 211 and the motor 212 may be considered to be in a normal state, and the control center 180 may control the fan 240 to maintain the current rotation speed.
Similarly, as shown in fig. 4, in the case where the temperature detected by the twelfth temperature sensor 152 is greater than the controller maximum temperature threshold and/or the temperature detected by the thirteenth temperature sensor 153 is greater than the motor maximum temperature threshold, if the temperature detected by the twelfth temperature sensor 152 and/or the thirteenth temperature sensor 153 continues to rise, it may be considered that the temperature of the controller 211 and/or the motor 212 is gradually rising, and the cooling effect of the controller coolant on the controller 211 and/or the motor 212 is not significant, during this process, the control center 180 may control the rotation speed of the fan 240 to gradually rise, so as to increase the cooling rate of the fan 240 on the controller coolant heat dissipation module 1112, thereby increasing the cooling rate of the controller coolant on the controller coolant, and further increasing the cooling rate of the controller coolant on the controller 211 and/or the motor 212. It should be understood that, in the case where the temperature detected by the twelfth temperature sensor 152 is between the controller minimum temperature threshold and the controller maximum temperature threshold, and the temperature detected by the thirteenth temperature sensor 153 is between the motor minimum temperature threshold and the motor maximum temperature threshold, then the temperatures of the controller 211 and the motor 212 may be considered to be in a normal state, and the control center 180 may control the fan 240 to maintain the current rotation speed.
The embodiment of the invention also provides a construction machine, which may include a machine body and the thermal management system 100 as described above, and the thermal management system 100 may be disposed on the machine body. The engineering machine has all the functions and effects of the thermal management system 100, and the beneficial effects of the engineering machine can be referred to as the beneficial effects of the thermal management system 100.
In one embodiment, the work machine may include an excavator, crane, roller, or the like.
Fig. 5 is a block diagram of a control center according to an exemplary embodiment of the present invention. The control center 180 may be either or both of the first device and the second device, or a stand-alone device independent thereof, which may communicate with the first device and the second device to receive the acquired input signals therefrom.
As shown in fig. 5, the control center 180 includes one or more processors 181 and memory 182.
The processor 181 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities and may control other components in the control center 180 to perform desired functions.
Memory 182 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on the computer readable storage medium that can be executed by the processor 181 to implement the control methods and/or other desired functions of the various embodiments of the invention described above. Various contents such as an input signal, a signal component, a noise component, and the like may also be stored in the computer-readable storage medium.
In one example, the control center 180 may further include: an input device 183 and an output device 1804, which are interconnected by a bus system and/or other form of connection mechanism (not shown).
When the controller is a stand-alone device, the input means 183 may be a communication network connector for receiving the acquired input signals from the first device and the second device.
In addition, the input device 183 may also include, for example, a keyboard, a mouse, and the like.
The output device 1804 may output various information to the outside, including determined distance information, direction information, and the like. The output devices 1804 may include, for example, a display, speakers, a printer, and a communication network and remote output devices connected thereto, etc.
Of course, only some of the components of the control center 180 that are relevant to the present invention are shown in fig. 5 for simplicity, components such as buses, input/output interfaces, etc. are omitted. In addition, the control center 180 may include any other suitable components depending on the particular application.
The computer program product may write program code for performing operations of embodiments of the present invention in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.
The block diagrams of the devices, apparatuses, devices, systems referred to in the present invention are only illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, apparatuses, devices, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
It should also be noted that in the system of the present invention, the components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention.
The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the invention to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (15)
1. A thermal management system, comprising:
the cooling liquid temperature regulating system comprises a cooling liquid heat exchange module;
the hydraulic oil temperature regulating system comprises a hydraulic oil heat exchange module;
the air conditioner working medium temperature regulating system comprises a working medium heat exchange module;
the temperature detection component is used for detecting the temperatures of different targets;
the reversing valve assembly is used for switching connecting pipelines among the cooling liquid temperature regulating system, the hydraulic oil temperature regulating system and the air conditioner working medium temperature regulating system;
the control center is in communication connection with the temperature detection assembly and the reversing valve assembly;
the control center is used for controlling the reversing valve assembly to change positions according to the detection signal of the temperature detection assembly so as to enable the hydraulic oil heat exchange module and the cooling liquid heat exchange module to realize heat transfer, and/or enable the working medium heat exchange module and the hydraulic oil heat exchange module to realize heat transfer.
2. The thermal management system of claim 1, wherein the working medium heat exchange module comprises:
the refrigerant heat exchange module is used for accommodating air conditioner refrigerants and is arranged corresponding to the cooling liquid heat exchange module;
and the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid and is correspondingly arranged with the hydraulic oil heat exchange module.
3. The thermal management system of claim 2, wherein the coolant heat exchange module comprises:
the battery cooling liquid heat exchange module is used for accommodating battery cooling liquid and is correspondingly arranged with the hydraulic oil heat exchange module;
the controller cooling liquid heat exchange module is used for containing the controller cooling liquid and is arranged corresponding to the refrigerant heat exchange module.
4. The thermal management system of claim 1, wherein the coolant attemperation system further comprises a coolant heat-dissipating module coupled to the coolant heat-exchanging module;
the hydraulic oil temperature regulating system further comprises a hydraulic oil heat dissipation module which is connected with the hydraulic oil heat exchange module, and the hydraulic oil heat exchange module and the cooling liquid heat exchange module are correspondingly arranged;
The air conditioner working medium temperature regulating system further comprises a working medium heat dissipation module which is connected with the working medium heat exchange module, wherein the working medium heat exchange module is correspondingly arranged with the hydraulic oil heat exchange module, and the working medium heat exchange module is correspondingly arranged with the cooling liquid heat exchange module.
5. The thermal management system of claim 4, wherein the coolant heat dissipation module comprises:
the battery cooling liquid heat dissipation module is connected with the cooling liquid heat exchange module;
and the controller cooling liquid heat dissipation module is connected with the cooling liquid heat exchange module.
6. The thermal management system of claim 4, further comprising:
the battery system is in communication connection with the control center;
the battery cooling liquid heater is connected with the battery system and is in communication connection with the control center;
the coolant heat exchange module includes:
the battery cooling liquid heat exchange module is arranged corresponding to the hydraulic oil heat exchange module and is connected with the battery system;
the coolant heat dissipation module includes:
The battery cooling liquid heat dissipation module is connected with the battery system;
the reversing valve assembly includes:
the first reversing valve is connected with the battery system and the battery cooling liquid heat dissipation module;
the second reversing valve is connected with the first reversing valve, the battery cooling liquid heater and the battery cooling liquid heat exchange module;
the first reversing valve and the second reversing valve are used for changing a flow pipeline of battery cooling liquid so that the battery cooling liquid passes through the battery cooling liquid heat dissipation module and/or the battery cooling liquid heat exchange module.
7. The thermal management system of claim 4, further comprising:
the motor control system is in communication connection with the control center;
the working medium heat exchange module includes:
the refrigerant heat exchange module is used for accommodating air conditioner refrigerants;
the coolant heat exchange module includes:
the controller cooling liquid heat exchange module is arranged corresponding to the refrigerant heat exchange module and is connected with the motor control system;
the coolant heat dissipation module includes:
the controller cooling liquid heat dissipation module;
The reversing valve assembly includes:
the third reversing valve is connected with the motor control system, the controller cooling liquid heat dissipation module and the controller cooling liquid heat exchange module;
the fourth reversing valve is connected with the controller cooling liquid heat dissipation module, the controller cooling liquid heat exchange module and the motor control system;
the third reversing valve and the fourth reversing valve are used for changing a flow pipeline of the controller cooling liquid so that the controller cooling liquid passes through the controller cooling liquid heat dissipation module and/or the controller cooling liquid heat exchange module.
8. The thermal management system of claim 1, wherein the thermal management system comprises:
the air conditioner heating system is in communication connection with the control center;
the working medium heat exchange module includes:
the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid, and is connected with the air conditioner heating system, and is correspondingly arranged with the hydraulic oil heat exchange module;
the reversing valve assembly includes:
a fifth reversing valve connected with the air conditioner heating system and the working medium heat exchange module;
The fifth reversing valve is used for changing a flow pipeline of the heating working fluid so that the heating working fluid passes through or does not pass through the working medium heat exchange module.
9. The thermal management system of claim 4, wherein the thermal management system comprises:
a battery system;
the battery cooling liquid heater is connected with the battery system and is in communication connection with the control center;
the working medium heat exchange module includes:
the first refrigerant heat exchange module is used for accommodating an air conditioner refrigerant;
the hydraulic oil heat exchange module includes:
a first hydraulic oil heat exchange module;
the coolant heat exchange module includes:
the first battery cooling liquid heat exchange module is arranged corresponding to the first hydraulic oil heat exchange module and is connected with the battery system;
the second battery cooling liquid heat exchange module is arranged corresponding to the first refrigerant heat exchange module;
the coolant heat dissipation module includes:
a battery coolant heat dissipation module connecting the battery system and the second battery coolant heat exchange module;
the reversing valve assembly includes:
A sixth reversing valve connecting the battery system and the first battery coolant heat exchange module;
a seventh reversing valve connected to the sixth reversing valve, the second battery coolant heat exchange module, and the battery coolant heat dissipation module;
wherein the sixth reversing valve and the seventh reversing valve are configured to change a flow path of the battery coolant such that the battery coolant passes through at least one of the battery coolant heat dissipation module, the first battery coolant heat exchange module, and the second battery coolant heat exchange module.
10. The thermal management system of claim 4, further comprising:
the motor control system is in communication connection with the control center;
the working medium heat exchange module includes:
the second refrigerant heat exchange module is used for accommodating an air conditioner refrigerant;
the coolant heat exchange module includes:
the controller cooling liquid heat exchange module is arranged corresponding to the second refrigerant heat exchange module and is connected with the motor control system;
the coolant heat dissipation module includes:
the controller cooling liquid heat dissipation module is connected with the motor control system;
The reversing valve assembly includes:
the eighth reversing valve is connected with the controller cooling liquid heat exchange module, the controller cooling liquid heat dissipation module and the motor control system;
the eighth reversing valve is used for changing a flow pipeline of the controller cooling liquid so that the controller cooling liquid passes or does not pass through the controller cooling liquid heat exchange module.
11. The thermal management system of claim 1, wherein the thermal management system comprises:
the air conditioner heating system is in communication connection with the control center;
the hydraulic oil heat exchange module includes:
a second hydraulic oil heat exchange module;
the working medium heat exchange module includes:
the heating working fluid heat exchange module is used for accommodating air conditioner heating working fluid, and is connected with the air conditioner heating system, and is correspondingly arranged with the second hydraulic oil heat exchange module;
the reversing valve assembly includes:
a ninth reversing valve connected with the air conditioner heating system and the working medium heat exchange module;
the ninth reversing valve is used for changing a flow pipeline of the heating working fluid so that the heating working fluid passes through or does not pass through the working medium heat exchange module.
12. The thermal management system of any one of claims 4 to 11, wherein the thermal management system comprises:
the battery system comprises a battery cooling liquid accommodating box, a first water pump and a battery, wherein the battery cooling liquid accommodating box, the first water pump and the battery are sequentially connected, the battery cooling liquid accommodating cavity box is connected with the cooling liquid heat dissipation module and the cooling liquid heat exchange module, the battery is connected with the cooling liquid heat dissipation module and the cooling liquid heat exchange module, and the first water pump is in communication connection with the control center;
the control center is used for controlling the rotating speed of the first water pump according to the detection signal of the temperature detection assembly.
13. The thermal management system of any one of claims 4 to 11, wherein the thermal management system comprises:
the motor control system comprises a controller, a motor, a second water pump and a controller cooling liquid accommodating box, wherein the controller is used for controlling the motor to work, the motor, the second water pump and the controller cooling liquid accommodating box are sequentially connected, the motor is connected with the cooling liquid radiating module and/or the cooling liquid heat exchange module, the controller cooling liquid accommodating box is connected with the cooling liquid radiating module and the cooling liquid heat exchange module, and the second water pump is in communication connection with the control center;
The control center is used for controlling the rotating speed of the second water pump according to the detection signal of the temperature detection assembly.
14. The thermal management system of any one of claims 4 to 11, further comprising:
the fan is correspondingly arranged with the cooling liquid heat dissipation module, the hydraulic oil heat dissipation module and the working medium heat dissipation module, the fan is in communication connection with the control center, and the control center is used for controlling the rotating speed of the fan according to the detection signal of the temperature detection assembly.
15. A construction machine, comprising:
a body;
the thermal management system of any one of claims 1-14, disposed on the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310537682.9A CN116442725A (en) | 2023-05-12 | 2023-05-12 | Thermal management system and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310537682.9A CN116442725A (en) | 2023-05-12 | 2023-05-12 | Thermal management system and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116442725A true CN116442725A (en) | 2023-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310537682.9A Pending CN116442725A (en) | 2023-05-12 | 2023-05-12 | Thermal management system and engineering machinery |
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| Country | Link |
|---|---|
| CN (1) | CN116442725A (en) |
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2023
- 2023-05-12 CN CN202310537682.9A patent/CN116442725A/en active Pending
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