CN216958109U - Integrated thermal management system for fuel cell - Google Patents
Integrated thermal management system for fuel cell Download PDFInfo
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- CN216958109U CN216958109U CN202220224496.0U CN202220224496U CN216958109U CN 216958109 U CN216958109 U CN 216958109U CN 202220224496 U CN202220224496 U CN 202220224496U CN 216958109 U CN216958109 U CN 216958109U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
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Abstract
A fuel cell integrated heat management system comprises a heat management main system, an air supply system and a heat management control unit. The heat management main system completes heat dissipation during the reaction of the fuel cell stack by utilizing the water pump and the heat dissipation assembly of the heat management main system; the air supply system also utilizes a water pump and a heat dissipation assembly in the heat management main system to dissipate heat during the operation of the system; the heat dissipation capacity of the main heat management system and the heat dissipation capacity of the air supply system can be controlled and adjusted by the heat management control unit, so that the two systems can work at proper temperature. Compared with the mode that the heat exchange is carried out on the fuel cell heat management system and the gas supply system by respectively adopting the independent water pump and the radiator, the fuel cell integrated heat management system disclosed by the embodiment of the utility model only needs one water pump and one radiating assembly to realize the heat exchange, the pipeline connection is relatively simple, the layout space can be saved to a greater extent, the application scene with compact space can be conveniently adapted, and the number of parts and the purchase cost are reduced.
Description
Technical Field
The utility model relates to the field of fuel cell automobiles, in particular to a fuel cell integrated heat management system.
Background
The fuel cell heat management system is used for exchanging heat when the galvanic pile reacts, so that the galvanic pile works at a proper temperature. The gas supply system of the fuel cell is used for supplying oxygen and hydrogen to the cathode and the anode of the fuel cell so as to realize the electric pile reaction. Generally, the thermal management system of the fuel cell needs to ensure that the temperature of the cooling liquid entering and exiting the stack is maintained between 60 ℃ and 80 ℃, and the working temperature of the air supply system is lower than 60 ℃ when the air supply system supplies air. Because the temperature requirements are inconsistent, the fuel cell thermal management system and the air supply system are usually two independent systems, and the two systems respectively perform corresponding temperature control. However, in practice, the two independent systems require too many components and occupy too much space, and thus have great limitations if applied to a scene with limited layout space.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a fuel cell integrated heat management system, which solves the problem of overlarge occupied space caused by the current mutually independent fuel cell heat management system and air supply system.
The integrated thermal management system for the fuel cell comprises the following components:
the heat management main system comprises a fuel cell heat exchange unit, a water pump and a heat dissipation assembly, wherein the fuel cell heat exchange unit is used for exchanging heat for the fuel cell; the output port of the water pump is connected with the input port of the fuel cell heat exchange unit; the heat dissipation assembly is provided with a main input port, a main output port, an auxiliary input port and an auxiliary output port, the main output port is connected with the input port of the water pump, the main input port is connected with the output port of the fuel cell heat exchange unit, and the main input port and the main output port are jointly used for transmitting cooling liquid in the heat management main system;
the gas supply system comprises a heat exchange input port and a heat exchange output port, the heat exchange input port is connected with the auxiliary output port, the heat exchange output port is connected with an output port of the fuel cell heat exchange unit, the auxiliary input port is connected with an input port of the fuel cell heat exchange unit, and the auxiliary input port and the auxiliary output port are jointly used for transmitting cooling liquid in the gas supply system;
and the heat management control unit is electrically connected with the water pump and the heat dissipation assembly respectively.
The fuel cell thermal management system provided by the embodiment of the utility model has the following technical effects: the heat management main system completes heat dissipation during the reaction of the fuel cell stack by utilizing the water pump and the heat dissipation assembly of the heat management main system; the air supply system also utilizes a water pump and a heat dissipation assembly in the heat management main system to dissipate heat when the system works; the heat management control unit can control and adjust the heat dissipating capacity of the heat management main system and the air supply system, so that the two systems work at proper temperature. Compared with the mode that the heat exchange is carried out on the fuel cell heat management system and the gas supply system by respectively adopting the independent water pump and the radiator, the fuel cell integrated heat management system disclosed by the embodiment of the utility model only needs one water pump and one radiating assembly to realize the heat exchange, the pipeline connection is relatively simple, the layout space can be saved to a greater extent, the application scene with compact space can be conveniently adapted, and the number of parts and the purchase cost are reduced.
According to some embodiments of the utility model, the heat dissipation assembly comprises:
a fan radiator, one side of which is provided with a heat radiation fan, the output port of the fan radiator is connected with the input port of the water pump, and the input port of the fan radiator is connected with the output port of the fuel cell heat exchange unit;
and the duct piece radiator is arranged on the fan radiator, the output port of the duct piece radiator is connected with the heat exchange input port, and the input port of the duct piece radiator is connected with the input port of the fuel cell heat exchange unit.
According to some embodiments of the utility model, the thermal management host system further comprises:
an output port of the heater is connected with an input port of the water pump, and the heater is electrically connected with the thermal management control unit;
the thermostat comprises an input port, a first output port and a second output port, wherein the input port of the thermostat is connected with the output port of the fuel cell heat exchange unit, the first output port is connected with the input port of the fan radiator, the second output port is connected with the input port of the heater, and the thermostat is electrically connected with the heat management control unit.
According to some embodiments of the utility model, the system further comprises a detection unit, and the detection unit is used for detecting the flow rate of the cooling liquid in the thermal management main system, the temperatures of the input port and the output port of the fuel cell heat exchange unit, and the temperatures of the heat exchange input port and the heat exchange output port.
According to some embodiments of the utility model, the detection unit comprises:
a first pressure sensor for detecting a flow rate of the cooling liquid at the input of the fuel cell heat exchange unit;
the second pressure sensor is used for detecting the flow speed of the cooling liquid at the output port of the fuel cell heat exchange unit;
a first temperature sensor for detecting the temperature of the coolant at the input of the fuel cell heat exchange unit;
the second temperature sensor is used for detecting the temperature of the cooling liquid at the output port of the fuel cell heat exchange unit;
a third temperature sensor for detecting the temperature of the coolant at the heat exchange input port of the gas supply system;
and the fourth temperature sensor is used for detecting the temperature of the cooling liquid at the heat exchange output port of the gas supply system.
According to some embodiments of the utility model, the gas supply system comprises:
the air compressor comprises a first cooling liquid input port and a first cooling liquid output port, and the first cooling liquid output port and the output port of the fuel cell heat exchange unit are connected;
the air compressor control unit comprises a second cooling liquid input port and a second cooling liquid output port, and the second cooling liquid output port is connected with the first cooling liquid input port;
and the DC-DC conversion unit comprises a third cooling liquid input port and a third cooling liquid output port, the third cooling liquid output port is connected with the second cooling liquid input port, and the third cooling liquid input port is connected with the output port of the pipe piece radiator.
According to some embodiments of the present invention, the main thermal management system further includes an intercooler, the intercooler includes a fourth coolant input port and a fourth coolant output port, the fourth coolant input port is connected to the input port of the fuel cell heat exchange unit, the fourth coolant output port is connected to the output port of the fuel cell heat exchange unit, and the intercooler is configured to cool compressed air compressed by the air compressor.
According to some embodiments of the utility model, the main thermal management system further comprises an expansion water tank, and the expansion water tank is respectively connected with the output port of the fuel cell heat exchange unit and the main output port.
According to some embodiments of the utility model, the main thermal management system further comprises a deionizer, one end of the deionizer is connected with the expansion water tank, and the other end of the deionizer is connected with an output port of the fuel cell heat exchange unit.
According to some embodiments of the utility model, the main thermal management system further comprises a filter, one end of the filter is connected to the input port of the water pump, and the other end of the filter is connected to the main output port.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a piping connection diagram of a fuel cell integrated thermal management system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a fuel cell integrated thermal management system according to an embodiment of the present invention;
FIG. 3 is a front view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention;
fig. 4 is a rear view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention;
fig. 5 is a left side view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention;
fig. 6 is a right side view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention;
fig. 7 is a top view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention;
figure 8 is a bottom view of a fuel cell integrated thermal management system configuration of an embodiment of the present invention.
Reference numerals:
the fuel cell heat exchange unit 110, the water pump 120, the heat dissipation assembly 130, the fan radiator 131, the tube radiator 132, the heater 140, the thermostat 150, the intercooler 160, the expansion water tank 170, the deionizer 180, the filter 190,
A first pressure sensor 211, a second pressure sensor 212, a first temperature sensor 221, a second temperature sensor 222, a third temperature sensor 223, a fourth temperature sensor 224,
An air compressor 310, an air compressor controller 320, a step-down DC-DC converter 330,
A fuel cell main controller 400,
A distribution box 500.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly defined, terms such as set, mounted, connected, disconnected and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention in combination with the specific contents of the technical solutions.
A fuel cell integrated thermal management system according to an embodiment of the present invention is described below with reference to fig. 1 to 8.
The integrated thermal management system for the fuel cell comprises a thermal management main system, an air supply system and a thermal management control unit. The thermal management main system comprises a fuel cell heat exchange unit 110, a water pump 120 and a heat dissipation assembly 130, wherein the fuel cell heat exchange unit 110 is used for exchanging heat for the fuel cell; the output port of the water pump 120 is connected with the input port of the fuel cell heat exchange unit 110; the heat dissipation assembly 130 is provided with a main input port, a main output port, an auxiliary input port and an auxiliary output port, the main output port is connected with the input port of the water pump 120, the main input port is connected with the output port of the fuel cell heat exchange unit 110, and the main input port and the main output port are jointly used for transferring cooling liquid in the heat management main system; the gas supply system comprises a heat exchange input port and a heat exchange output port, the heat exchange input port is connected with an auxiliary output port, the heat exchange output port is connected with an output port of the fuel cell heat exchange unit 110, the auxiliary input port is connected with an input port of the fuel cell heat exchange unit 110, and the auxiliary input port and the auxiliary output port are jointly used for transmitting cooling liquid in the gas supply system; the thermal management control unit is electrically connected to the water pump 120 and the heat dissipation assembly 130, respectively.
Referring to fig. 1 to 8, the main thermal management system drives the coolant by using a water pump 120, so that the coolant circulates in the fuel cell heat exchange unit 110, and dissipates excess heat generated during the stack reaction through a heat dissipation assembly 130; meanwhile, the air supply system is connected with the heat dissipation assembly 130 in a water cooling manner, and under the driving of the water pump 120, the air supply system can also utilize the heat dissipation assembly 130 to dissipate the redundant heat generated during the operation. Specifically, the heat dissipation assembly 130 is an integrated heat sink having a plurality of input ports and a plurality of output ports, so that heat dissipation to the fuel cell stack and the air supply system can be realized centrally. The thermal management control unit is used for controlling the rotating speed of the water pump 120 and the heat dissipation strength of the heat dissipation assembly 130 to adjust the heat dissipation capacity of the thermal management main system and the air supply system, so that the working temperature of the thermal management main system and the working temperature of the air supply system are kept appropriate.
According to the fuel cell thermal management system disclosed by the embodiment of the utility model, the thermal management main system finishes heat dissipation during the reaction of the fuel cell stack by utilizing the water pump 120 and the heat dissipation assembly 130 of the thermal management main system; the air supply system also utilizes the water pump 120 and the heat dissipation assembly 130 in the heat management main system to dissipate heat during the operation of the system; the heat management control unit can control and adjust the heat dissipating capacity of the heat management main system and the air supply system, so that the two systems work at proper temperature. Compared with the fuel cell heat management system and the gas supply system which respectively adopt the independent water pump 120 and the radiator for heat exchange, the fuel cell integrated heat management system of the embodiment of the utility model only needs one water pump 120 and one radiating assembly 130 for heat exchange, the pipeline connection is relatively simple, the layout space can be saved to a greater extent, the fuel cell integrated heat management system is convenient to adapt to the application scene with compact space, and the number of parts and the purchase cost are reduced.
In some embodiments, the functions of the thermal management control unit may be implemented by a fuel cell main controller 400(FCU), and the fuel cell main controller 400 may be implemented by a single chip, an ARM, a DSP, or a PLC, and may specifically be implemented by an STM32 series processor.
In some embodiments of the present invention, as shown in fig. 1 to 8, the heat dissipation assembly 130 includes: fan radiator 131, tube sheet radiator 132. A heat radiation fan is arranged on one side of the fan radiator 131, the output port of the fan radiator 131 is connected with the input port of the water pump 120, and the input port of the fan radiator 131 is connected with the output port of the fuel cell heat exchange unit 110; the tube sheet radiator 132 is arranged on the fan radiator 131, an output port of the tube sheet radiator 132 is connected with a heat exchange input port, and an input port of the tube sheet radiator 132 is connected with an input port of the fuel cell heat exchange unit 110.
Referring to fig. 2 in combination with fig. 3 to 8, the fan radiator 131 is rectangular in overall shape, and a heat radiation fan is disposed on one side thereof; the whole appearance of the duct piece radiator 132 is a cuboid, the duct piece radiator 132 is arranged on one side of the fan radiator 131 far away from the heat radiation fan, one side surface of the duct piece radiator 132 is attached to the other side surface of the fan radiator 131, and the fan radiator 131 and the duct piece radiator 132 form an integrated radiator, so that parts in the system are integrated, and the layout space is saved. It should be noted that the tube sheet radiator is provided with a plurality of radiating tubes and a plurality of radiating fins.
In some embodiments of the present invention, as shown in fig. 1 to 8, the thermal management main system further includes: heater 140, thermostat 150. An output port of the heater 140 is connected with an input port of the water pump 120, and the heater 140 is electrically connected with the thermal management control unit; the thermostat 150 comprises an input port, a first output port and a second output port, the input port of the thermostat 150 is connected with the output port of the fuel cell heat exchange unit 110, the first output port is connected with the input port of the fan radiator 131, the second output port is connected with the input port of the heater 140, and the thermostat 150 is electrically connected with the thermal management control unit.
Referring to fig. 1, the thermal management main system at least includes a fuel cell heat exchange unit 110, a water pump 120, a heat dissipation assembly 130, a heater 140, and a thermostat 150, and can implement specific temperature control through circulating heat exchange. When the fuel cell stack reacts to generate electric energy, heat energy is generated at the same time, the water pump 120 is used for driving the cooling liquid to flow circularly, and when the cooling liquid flows through the fuel cell heat exchange unit 110, the cooling liquid absorbs the heat energy and then flows to the input port of the thermostat 150. When the heat carried by the cooling liquid is too high, the thermal management control unit controls to open the first output port of the thermostat 150, so that the heat in the cooling liquid is discharged through the heat dissipation assembly 130, and the cooling liquid flows back to the fuel cell heat exchange unit 110 after heat dissipation; when the heat carried by the coolant is too low, the thermal management control unit controls to open the second output port of the thermostat 150, so that the coolant obtains a certain amount of heat through the heater 140, and the heated coolant flows back to the fuel cell heat exchange unit 110. The rotation speed of the water pump 120, the opening degree of the thermostat 150, the heat dissipation degree of the heat dissipation assembly 130 and the heating power of the heater 140 are adjusted by using the thermal management control unit, so that the temperature of the circulating cooling liquid can be maintained between 60 ℃ and 80 ℃, and the fuel cell is ensured to be in a proper working temperature range.
In some embodiments of the present invention, as shown in fig. 1 to 8, the fuel cell integrated thermal management system further includes a detection unit for detecting the flow rate of the coolant in the thermal management main system, the temperatures of the input port and the output port of the fuel cell heat exchange unit 110, and the temperatures of the heat exchange input port and the heat exchange output port.
By using the detection unit, the thermal management control unit can control and adjust the rotation speed of the water pump 120, the opening degree of the thermostat 150, the heat dissipation degree of the heat dissipation assembly 130 and the heating power of the heater 140 according to the flow rate of the cooling liquid in the thermal management main system and the temperatures of the input port and the output port of the fuel cell heat exchange unit 110, so as to reasonably adjust the working temperature of the fuel cell stack during reaction. Meanwhile, the working temperature of the air supply system can be reasonably adjusted according to the temperatures of the heat exchange input port and the heat exchange output port.
In some embodiments of the present invention, as shown in fig. 1 to 8, the detection unit includes: a first pressure sensor 211, a second pressure sensor 212, a first temperature sensor 221, a second temperature sensor 222, a third temperature sensor 223, a fourth temperature sensor 224. The first pressure sensor 211 is used to detect the flow rate of the cooling liquid at the input port of the fuel cell heat exchange unit 110; the second pressure sensor 212 is used for detecting the flow rate of the cooling liquid at the output port of the fuel cell heat exchange unit 110; the first temperature sensor 221 is used for detecting the temperature of the cooling liquid at the input port of the fuel cell heat exchange unit 110; the second temperature sensor 222 is used for detecting the temperature of the cooling liquid at the output port of the fuel cell heat exchange unit 110; the third temperature sensor 223 is used for detecting the temperature of the cooling liquid at the heat exchange input port of the air supply system; the fourth temperature sensor 224 is used for detecting the temperature of the cooling liquid at the heat exchange output port of the air supply system.
Referring to fig. 1 in combination with fig. 2 to 8, the first pressure sensor 211 and the first temperature sensor 221 are disposed on the pipeline at the input port of the fuel cell heat exchange unit 110; the second pressure sensor 212 and the second temperature sensor 222 are disposed on the pipeline at the output port of the fuel cell heat exchange unit 110, so that the temperature of the fuel cell stack during reaction is determined and reasonably regulated according to the flow rate and temperature of the cooling liquid detected at the input and output ports of the fuel cell heat exchange unit 110. The third temperature sensor 223 is disposed on the pipeline at the heat exchange inlet of the air supply system, and the fourth temperature sensor 224 is disposed on the pipeline at the heat exchange outlet of the air supply system, so that the working temperature of the air supply system is determined and reasonably regulated according to the temperature of the coolant detected at the heat exchange inlet and the heat exchange outlet of the air supply system.
In some embodiments of the present invention, as shown in fig. 1 to 8, the gas supply system includes: air compressor 310, air compressor 310 control unit, DC-DC conversion unit. The air compressor 310 comprises a first cooling liquid input port and a first cooling liquid output port, and the first cooling liquid output port is connected with an output port of the fuel cell heat exchange unit 110; the control unit of the air compressor 310 comprises a second cooling liquid input port and a second cooling liquid output port, and the second cooling liquid output port is connected with the first cooling liquid input port; the DC-DC conversion unit comprises a third cooling liquid input port and a third cooling liquid output port, the third cooling liquid output port is connected with the second cooling liquid input port, and the third cooling liquid input port is connected with the output port of the pipe piece radiator.
It should be noted that the air supply system further includes a hydrogen pump to provide hydrogen gas to the anode of the fuel cell, and the air compressor 310 provides oxygen gas to the cathode of the fuel cell, so that the output port of the gas pipeline in the air compressor 310 is connected to the cathode of the fuel cell, and the input port is used for inputting air. The control unit of the air compressor 310 is electrically connected to the air compressor 310, and the control unit of the air compressor 310 is used for adjusting the pressure of the air compressor 310 during operation. Specifically, the air compressor 310 control unit may be controlled to be turned on or off by the fuel cell main controller 400 using the air compressor controller 320. In the total system of the fuel cell, the power supply unit is used for supplying power for other units, modules or subsystems, the power supply unit can adopt hybrid power, namely, the power supply unit comprises electric energy generated by the fuel cell body, and the power supply unit also comprises a built-in storage battery, and the electric energy can be reasonably distributed by utilizing the power distribution box 500. Because the output voltage range of the fuel cell is larger than the working voltage range of the storage battery, the output characteristic of the fuel cell is soft, and the output characteristic of the storage battery is hard, the direct electrical connection between the fuel cell and the storage battery is not matched. Therefore, the DC-DC conversion unit can be electrically connected between the fuel cell and the storage battery, the output voltage of the fuel cell is subjected to voltage reduction and conversion and then is transmitted to the storage battery, and the voltage regulation function is realized. Specifically, the DC-DC conversion unit may employ the step-down DC-DC converter 330.
Referring to fig. 1, the air compressor 310, the air compressor controller 320, and the step-down DC-DC converter 330 are all of a water-cooled type structure, and thus they are connected in sequence by a coolant pipeline. The working temperature of the air supply system is required to be lower than 60 ℃, and is smaller than the temperature range of the fuel cell stack during reaction: 60 degrees celsius to 80 degrees celsius, therefore, for the coolant above 60 degrees celsius before flowing into the input port of the fuel cell cooling unit, a portion of the coolant will be introduced to the heat dissipation assembly 130 for further heat dissipation, the temperature of the coolant will be brought to below 60 degrees celsius and flow through the various components of the air supply system, thereby ensuring that the operating temperature of the air supply system is proper, and finally the portion of the coolant will be merged with the coolant in the main thermal management system at the output port of the fuel cell cooling unit.
In some embodiments of the present invention, as shown in fig. 1 to 8, the main thermal management system further includes an intercooler 160, the intercooler 160 includes a fourth cooling liquid input port and a fourth cooling liquid output port, the fourth cooling liquid input port is connected to the input port of the fuel cell heat exchanging unit 110, the fourth cooling liquid output port is connected to the output port of the fuel cell heat exchanging unit 110, and the intercooler 160 is configured to cool the compressed air compressed by the air compressor 310.
Referring to fig. 2 to 8, a gas line of the intercooler 160 is connected to a gas line of the air compressor 310 so that the compressed air of the air compressor 310 can be cooled through the intercooler 160. Meanwhile, referring to fig. 1, the intercooler 160 is further connected to a cooling fluid line of the thermal management main system, and thus, the cooling of the compressed air is achieved by exchanging heat with the compressed air using the cooling fluid flowing through the intercooler 160.
In some embodiments of the present invention, as shown in fig. 1 to 8, the main thermal management system further includes an expansion water tank 170, and the expansion water tank 170 is connected to the output port of the fuel cell heat exchange unit 110 and the main output port, respectively. The expansion tank 170180 is used to accommodate the amount of expansion of the coolant in the circuit and also acts as a pressure regulator and water refill for the thermal management system.
In some embodiments of the present invention, as shown in fig. 1 to 8, the main thermal management system further includes a deionizer 180, one end of the deionizer 180 is connected to the expansion water tank 170, and the other end of the deionizer 180 is connected to an output port of the fuel cell heat exchange unit 110. The deionizer 180 is added for removing conductive ions in the cooling liquid, so that the thermal management system has better insulation.
In some embodiments of the present invention, as shown in fig. 1-8, the thermal management main system further includes a filter 190, one end of the filter 190 is connected to the input port of the water pump 120, and the other end of the filter 190 is connected to the main output port. The filter 190 may be used to filter out impurities in the coolant.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A fuel cell integrated thermal management system, comprising:
the heat management main system comprises a fuel cell heat exchange unit (110), a water pump (120) and a heat dissipation assembly (130), wherein the fuel cell heat exchange unit (110) is used for exchanging heat for the fuel cell; an output port of the water pump (120) is connected with an input port of the fuel cell heat exchange unit (110); the heat dissipation assembly (130) is provided with a main input port, a main output port, an auxiliary input port and an auxiliary output port, the main output port is connected with the input port of the water pump (120), and the main input port is connected with the output port of the fuel cell heat exchange unit (110);
the air supply system comprises a heat exchange input port and a heat exchange output port, the heat exchange input port is connected with the auxiliary output port, the heat exchange output port is connected with an output port of the fuel cell heat exchange unit (110), the auxiliary input port is connected with an input port of the fuel cell heat exchange unit (110), and the heat dissipation assembly is used for respectively dissipating heat of cooling liquid in the heat management main system and cooling liquid in the air supply system;
and the heat management control unit is electrically connected with the water pump (120) and the heat dissipation assembly (130) respectively.
2. The fuel cell integrated thermal management system of claim 1, wherein the heat sink assembly (130) comprises:
a fan radiator (131), one side of which is provided with a heat radiation fan, the output port of the fan radiator (131) is connected with the input port of the water pump (120), and the input port of the fan radiator (131) is connected with the output port of the fuel cell heat exchange unit (110);
and the pipe piece radiator (132) is arranged on the fan radiator (131), the output port of the pipe piece radiator (132) is connected with the heat exchange input port, and the input port of the pipe piece radiator (132) is connected with the input port of the fuel cell heat exchange unit (110).
3. The fuel cell integrated thermal management system of claim 2, wherein the thermal management host system further comprises:
the output port of the heater (140) is connected with the input port of the water pump (120), and the heater (140) is electrically connected with the thermal management control unit;
the thermostat (150) comprises an input port, a first output port and a second output port, the input port of the thermostat (150) is connected with the output port of the fuel cell heat exchange unit (110), the first output port is connected with the input port of the fan radiator (131), the second output port is connected with the input port of the heater (140), and the thermostat (150) is electrically connected with the heat management control unit.
4. The fuel cell integrated thermal management system of claim 3, further comprising a detection unit for detecting a flow rate of a coolant in the thermal management main system, temperatures of the input and output ports of the fuel cell heat exchange unit (110), and temperatures of the heat exchange input and output ports.
5. The fuel cell integrated thermal management system of claim 4, wherein the detection unit comprises:
a first pressure sensor (211) for detecting a flow rate of the cooling liquid at an input of the fuel cell heat exchange unit (110);
a second pressure sensor (212) for detecting a flow rate of the cooling fluid at an output port of the fuel cell heat exchange unit (110);
a first temperature sensor (221) for detecting a temperature of the cooling liquid at an input port of the fuel cell heat exchange unit (110);
a second temperature sensor (222) for detecting the temperature of the coolant at the output of the fuel cell heat exchange unit (110);
a third temperature sensor (223) for detecting a temperature of a coolant at the heat exchange input of the air supply system;
a fourth temperature sensor (224) for detecting a temperature of the coolant at the heat exchange output of the air supply system.
6. The fuel cell integrated thermal management system of claim 3, wherein the air supply system comprises:
an air compressor (310) comprising a first cooling liquid input port and a first cooling liquid output port, wherein the first cooling liquid output port is connected with an output port of the fuel cell heat exchange unit (110);
the air compressor control unit comprises a second cooling liquid input port and a second cooling liquid output port, and the second cooling liquid output port is connected with the first cooling liquid input port;
and the DC-DC conversion unit comprises a third cooling liquid input port and a third cooling liquid output port, the third cooling liquid output port is connected with the second cooling liquid input port, and the third cooling liquid input port is connected with the output port of the pipe piece radiator (132).
7. The fuel cell integrated thermal management system according to claim 6, wherein the thermal management main system further comprises an intercooler (160), the intercooler (160) comprises a fourth cooling liquid input port and a fourth cooling liquid output port, the fourth cooling liquid input port is connected with the input port of the fuel cell heat exchanging unit (110), the fourth cooling liquid output port is connected with the output port of the fuel cell heat exchanging unit (110), and the intercooler (160) is used for cooling the compressed air compressed by the air compressor (310).
8. The fuel cell integrated thermal management system of claim 1, wherein the thermal management main system further comprises an expansion water tank (170), and the expansion water tank (170) is connected to the output port of the fuel cell heat exchange unit (110) and the main output port respectively.
9. The fuel cell integrated thermal management system according to claim 8, wherein the thermal management main system further comprises a deionizer (180), one end of the deionizer (180) is connected to the expansion water tank (170), and the other end of the deionizer (180) is connected to an output port of the fuel cell heat exchange unit (110).
10. The fuel cell integrated thermal management system of claim 1, wherein the thermal management master system further comprises a filter (190), one end of the filter (190) is connected to an input port of the water pump (120), and the other end of the filter (190) is connected to the master output port.
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