CN113978250A - Vehicle-mounted heat management system and vehicle - Google Patents

Vehicle-mounted heat management system and vehicle Download PDF

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Publication number
CN113978250A
CN113978250A CN202111354784.4A CN202111354784A CN113978250A CN 113978250 A CN113978250 A CN 113978250A CN 202111354784 A CN202111354784 A CN 202111354784A CN 113978250 A CN113978250 A CN 113978250A
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Prior art keywords
vehicle
management system
thermal management
hot end
cold
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CN202111354784.4A
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Chinese (zh)
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周先刚
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FAW Jiefang Automotive Co Ltd
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FAW Jiefang Automotive Co Ltd
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Priority to CN202111354784.4A priority Critical patent/CN113978250A/en
Publication of CN113978250A publication Critical patent/CN113978250A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L1/00—Supplying electric power to auxiliary equipment of vehicles
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H02N11/002—Generators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention relates to a vehicle-mounted thermal management system and a vehicle, wherein the vehicle-mounted thermal management system comprises: the thermoelectric power generation device comprises a cold end, a hot end and a wire harness connected between the cold end and the hot end, wherein the cold end is connected with the frame, the hot end is connected with a heating component in the frame, and low-voltage current is formed between the cold end and the hot end and is transmitted through the wire harness; the energy storage device is connected between the cold end and the hot end through a wire harness; and the unidirectional power supply device is connected between the energy storage device and the cold end and the hot end through the wire harness so as to transmit low-voltage current from the temperature difference power generation device to the energy storage device in a unidirectional way. The cold end of the frame is connected with the frame, the hot end of the frame is connected with the heating part in the frame, the frame has low temperature in cold environment, and the heating part in the frame generates high temperature due to self heating; therefore, a stable temperature difference is formed between the cold end and the hot end to generate low-voltage current, and the low-voltage current can be used for energy supply such as heating in a vehicle, so that energy recycling is realized.

Description

Vehicle-mounted heat management system and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a vehicle-mounted thermal management system and a vehicle.
Background
With the development of electric automobiles, the endurance mileage is one of the important factors restricting the development of electric automobiles. In China, most northern areas have long-term cold environments. In a cold low-temperature environment, the charge and discharge capacity of the lithium battery is poor, so that the electric quantity of the electric automobile seriously influences the endurance mileage of the electric automobile. In addition, in a cold environment, the electric vehicle itself needs to be heated and moisturized, thereby further increasing the consumption of electric power.
Based on the above situation, it is necessary to provide an on-board thermal management system suitable for cold environment to improve the mileage of the electric vehicle.
Disclosure of Invention
In view of the above, it is necessary to provide a vehicle-mounted thermal management system and a vehicle, which can improve the driving range of an electric vehicle and recover energy by generating power using a temperature difference between a natural low-temperature environment and a high temperature generated by a heat generating component in the vehicle, in order to solve the problem of short driving range of the electric vehicle in a cold environment.
In a first aspect, the present application provides an onboard thermal management system, comprising:
the thermoelectric power generation device comprises a cold end, a hot end and a wire harness connected between the cold end and the hot end, wherein the cold end is connected with a frame, the hot end is connected with a heating component in the frame, and low-voltage current is formed between the cold end and the hot end and is transmitted through the wire harness;
the energy storage device is connected between the cold end and the hot end through the wire harness;
and the unidirectional power supply device is connected between the energy storage device and the cold end and between the energy storage device and the hot end through the wire harness, so that the low-voltage current is transmitted to the energy storage device from the temperature difference power generation device in a unidirectional mode.
Therefore, the stable temperature difference formed between the cold end and the hot end of the frame and the heating part in the vehicle is utilized to generate low-voltage current, so that power is supplied to the electric equipment in the vehicle, and the energy can be recycled.
In some embodiments, the thermoelectric power generation device comprises a coolant pipeline, wherein the coolant pipeline penetrates through the hot end and connects the hot end with the heat-generating component in the vehicle. The heat generated by the heating components in the vehicle is transferred to the hot end through the cooling liquid filled in the cooling liquid pipeline, so that a stable temperature difference is formed between the hot end and the cold end, and low-voltage current is generated.
In some embodiments, the thermoelectric generation device includes a cooling water pump disposed on the coolant pipeline. The flow and the flow speed of the cooling liquid in the cooling liquid pipeline are controlled by the cooling water pump, and when larger current needs to be supplied, the flow of the cooling liquid can be increased by controlling the cooling water pump, so that the heat transfer of heating components in the vehicle is increased, and larger temperature difference is formed.
In some embodiments, the coolant lines are externally wrapped with insulation. Therefore, the heat loss can be avoided, and the heat can be more fully utilized.
In some embodiments, the onboard thermal management system includes a heat sink; the cooling liquid pipeline comprises an inlet end and an outlet end, the heating component in the vehicle is connected to the inlet end, and the heat dissipation device is connected to the outlet end.
Therefore, when certain working components in the vehicle are too high in temperature due to heating, the temperature of the working components can be reduced and dissipated through the heat dissipation device, so that normal and stable operation of the components in the vehicle is ensured.
In some embodiments, the thermoelectric generation device comprises a cooling liquid pipeline, wherein the cooling liquid pipeline penetrates through the hot end and comprises an inlet end and an outlet end; the vehicle-mounted heat management system comprises a warm air device, and the warm air device is arranged at the outlet end.
When the temperature generated by the heating component in the vehicle is higher than the temperature of the warm air inlet of the warm air device, namely the temperature at the inlet end of the cooling liquid pipeline is higher than the temperature of the warm air inlet of the warm air device, the redundant temperature generated by the heating component in the vehicle can be provided to the warm air device through the cooling liquid so as to heat the vehicle.
In some embodiments, the thermoelectric power generation device includes a coolant pipeline, the coolant pipeline is disposed through the hot end and includes a first branch and a second branch that are independent of each other, a first switch is disposed on the first branch to control on/off of the first branch, and a second switch is disposed on the second branch to control on/off of the second branch; the vehicle-mounted thermal management system comprises a warm air device, and the warm air device is arranged on the first branch; the vehicle-mounted thermal management system comprises a heat dissipation device, and the heat dissipation device is arranged on the second branch.
The cooling liquid pipeline is set to be a first branch and a second branch, different working parts are arranged on the first branch and the second branch, and the control is respectively carried out through switches. Thus, a thermal management mode of the in-vehicle thermal management system can be achieved.
In some embodiments, the vehicle-mounted thermal management system includes temperature measuring devices respectively connected to the cold end and the hot end for respectively measuring temperatures of the cold end and the hot end. The temperature of each module in the vehicle-mounted thermal management system can be accurately monitored through the temperature measuring device, so that thermal management can be better performed.
In some embodiments, the thermoelectric generation device comprises a cooling liquid pipeline, wherein the cooling liquid pipeline penetrates through the hot end and comprises an inlet end and an outlet end; the temperature measuring device comprises a first temperature detector, a second temperature detector and a third temperature detector, wherein the first temperature detector is arranged at the inlet end, the second temperature detector is arranged at the outlet end, and the third temperature detector is arranged at the cold end.
In a second aspect, the present application provides a vehicle comprising a frame, in-vehicle heat generating components, and an in-vehicle thermal management system as described above; the cold end of the temperature difference power generation device is connected with the frame, and the hot end of the temperature difference power generation device is connected with a heating component in the vehicle.
According to the vehicle-mounted thermal management system and the vehicle, the cold end is connected with the frame, the hot end is connected with the heating component in the vehicle, the frame has low temperature in a cold environment, and the heating component in the vehicle generates high temperature due to self heating; therefore, a stable temperature difference is formed between the cold end and the hot end to generate low-voltage current, and the low-voltage current can be used for energy supply such as heating in a vehicle, so that energy recycling is realized.
Drawings
FIG. 1 is a schematic structural diagram of an onboard thermal management system according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of an onboard thermal management system according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of an onboard thermal management system according to an embodiment of the present application;
FIG. 4 is a schematic structural diagram of an onboard thermal management system according to an embodiment of the present application;
in the figure: 100-vehicle thermal management system, 201-heat generating component in vehicle, 10-temperature difference power generation device, 20-energy storage device, 30-unidirectional power supply device, 40-heat dissipation device, 50-warm air device, 60-temperature measurement device, 11-cold end, 12-hot end, 13-wire harness, 14-coolant pipeline, 15-cooling water pump, 61-first temperature detector, 62-second temperature detector, 63-third temperature detector, 141-inlet end, 142-outlet end, 143-first branch, 144-second branch, 145-first switch and 146-second switch.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
For electric vehicles, although photovoltaic power generation or a scheme of utilizing tail gas, illumination and the like as thermoelectric power generation has appeared in the prior art, the inventor notices that for most northern areas in China, the power generation mode is not ideal and the practicability is low due to very limited illumination in winter and extremely low environmental temperature.
Based on the above circumstances, the inventors have noticed that the frame structure of the vehicle bottom is a metal member and is located at the vehicle bottom without being affected by external heat sources such as sunlight, so that a stable low temperature can be maintained. During normal operation of heat generating components in the vehicle, such as the driving motor and the controller, a large amount of heat is generated, and an additional heat dissipation device is required to cool the heat generating components. Therefore, if a stable temperature difference is naturally formed between the two, the problem of performance reduction of the vehicle due to the influence of a cold environment can be solved by utilizing the stable temperature difference between the two, and energy recycling can be realized for heat dissipation and cooling treatment of heat generating components in the vehicle.
Based on the above consideration, in order to solve the problem of electric quantity consumption of the vehicle in the cold environment, the inventor designs a vehicle-mounted thermal management system through intensive research, and realizes energy recycling by utilizing the temperature difference between a vehicle frame and a heating component in the vehicle, so as to slow down the electric quantity consumption speed in the cold environment, and further improve the driving range of the vehicle.
Fig. 1, fig. 2, fig. 3, and fig. 4 respectively show structural schematic diagrams of an onboard thermal management system in an embodiment of the invention. For the purpose of illustration, the drawings show only the structures associated with embodiments of the invention.
Referring to fig. 1, an embodiment of the invention provides a vehicle-mounted thermal management system 100, which includes a thermoelectric power generation device 10, an energy storage device 20, and a unidirectional power supply device 30. The thermoelectric power generation device 10 includes a cold end 11, a hot end 12, and a wire bundle 13 connected between the cold end 11 and the hot end 12. The cold end 11 is connected to a frame (not shown) and the hot end 12 is connected to a heat generating component 201 in the vehicle. A low voltage current is established between cold terminal 11 and hot terminal 12 and transmitted through wire bundle 13. Energy storage device 20 is connected between cold side 11 and hot side 12 by a wire bundle 13. The unidirectional power supply device 30 is connected between the energy storage device 20 and the cold end 11 and the hot end 12 through the wiring harness 13, so that low-voltage current is transmitted from the thermoelectric power generation device 10 to the energy storage device 20 in a unidirectional mode.
Specifically, the cold end 11 is directly connected to a frame located at the bottom of the vehicle body. When the outside is the low temperature environment, the frame is difficult to be influenced by external heat sources such as illumination because of being in the automobile body bottom. In addition, the frame is of a metal structure, so that heat transfer is facilitated. Therefore, cold end 11 is connected to the frame to form a stable temperature difference with in-vehicle heat-generating component 201 at hot end 12, so that a low-voltage current is formed between cold end 11 and hot end 12, and is transmitted to energy storage device 20 through wire harness 13. Further, the energy storage device 20 may be used to supply power to the electric devices in the vehicle, so as to improve the utilization rate of the battery power.
In addition, in this embodiment, the unidirectional power supply 30 may be a silicon controlled rectifier or a diode device. By disposing the silicon controlled rectifier or the diode device between the energy storage device 20 and the thermoelectric generation device 10, the energy storage device 20 can be prevented from supplying power to the thermoelectric generation device 10. It is understood that the unidirectional power supply 30 may be replaced by other similar structures, which are not described in detail herein.
With the above structure, a low-voltage current is formed by using a stable temperature difference formed between the frame and the interior heat generating component 201 to supply power to the interior electric equipment, thereby realizing energy recycling.
Referring to fig. 2, in some embodiments, the thermoelectric power generation device 10 includes a coolant pipe 14, and the coolant pipe 14 is disposed through the hot end 12 and connects the hot end 12 with a heat generating component 201 in the vehicle.
In the present embodiment, the heat generating component 201 in the vehicle interior may be a heat generating surface of a component such as a driving motor, a controller, a defroster, or a semiconductor heat generating component. The cooling liquid pipe 14 is filled with cooling liquid, and the cooling liquid transfers heat generated by the heat generating component 201 in the vehicle to the hot end 12, so that a stable temperature difference is formed between the hot end 12 and the cold end 11, and low-voltage current is generated.
In order to control the circulation rate of the coolant in the coolant pipe 14, the thermoelectric generation device 10 includes a coolant pump 15, and the coolant pump 15 is provided on the coolant pipe 14. The flow and the flow velocity of the cooling liquid in the cooling liquid pipeline 14 are controlled by the cooling water pump 15, and if a larger current needs to be supplied, the flow of the cooling liquid can be increased by controlling the cooling water pump 15, so that the heat transfer to the heat generating component 201 in the vehicle is increased, and a larger temperature difference is formed.
Further, the coolant pipe 14 is externally wrapped with an insulation material. Therefore, the heat loss can be avoided, and the heat can be more fully utilized.
In some embodiments, the in-vehicle thermal management system 100 includes a heat sink 40, the coolant conduit 14 includes an inlet port 141 and an outlet port 142, the in-vehicle heat-generating component 201 is connected to the inlet port 141, and the heat sink 40 is connected to the outlet port 142.
In this embodiment, when some working components in the vehicle are too hot due to heat generation, the temperature of the working components can be reduced and dissipated through the heat dissipating device 40, so as to ensure normal and stable operation of the components in the vehicle.
Further, as shown in fig. 3, the vehicle thermal management system 100 includes a heating device 50, and the heating device 50 is disposed at the outlet end 142. The heater unit 50 is used for heating the interior of the vehicle, however, when the temperature of the heat generating component 201 in the vehicle is higher than the inlet temperature of the warm air of the heater unit 50, that is, the temperature of the inlet 141 of the coolant duct 14 is higher than the inlet temperature of the warm air of the heater unit 50, the surplus temperature generated by the heat generating component 201 in the vehicle can be supplied to the heater unit 50 by the coolant for heating the interior of the vehicle.
Referring to fig. 4, in some embodiments, the coolant line 14 includes a first branch 143 and a second branch 144 that are independent of each other. The first branch 143 is provided with a first switch 145 to control on/off of the first branch 143. A second switch 146 is disposed on the second branch 144 to control on/off of the second branch 146. In addition, the heater unit 50 is disposed on the first branch 143, and the heat sink 40 is disposed on the second branch 146.
Specifically, the coolant line 14 is provided as a first branch 143 and a second branch 144, and different working components are provided on the first branch 143 and the second branch 144, and are controlled by switches, respectively. Thus, a thermal management mode of the in-vehicle thermal management system 100 may be implemented.
More specifically, when the heat generating component 201 in the vehicle needs to dissipate heat, the second switch 146 may be turned on, and the first switch 145 may be turned off, so that the heat generating component is cooled and dissipated by the heat dissipating device 40. When it is desired to provide in-vehicle heating, the first switch 145 may be opened and the second switch 146 closed. The heat is transferred to the heater unit 50 by the coolant, and the heater unit 50 heats the vehicle interior.
In some embodiments, the onboard thermal management system 100 includes temperature measuring devices 60, and the temperature measuring devices 60 are respectively connected to the cold end 11 and the hot end 12 for respectively measuring the temperature of the cold end 11 and the hot end 12. The temperature measuring device 60 can accurately monitor the temperature of each module in the vehicle-mounted thermal management system 100, so that thermal management can be better performed.
Specifically, in the present embodiment, the temperature measuring device 60 includes a first temperature detector 61, a second temperature detector 62, and a third temperature detector 63. The first temperature detector 61 is arranged at the inlet end 141, the second temperature detector 62 is arranged at the outlet end 142, and the third temperature detector 63 is arranged at the cold end 11.
The first temperature detector 61 is used for measuring the temperature of the cooling liquid inlet 141, the second temperature detector 62 is used for measuring the temperature of the cooling liquid outlet 142, and the third temperature detector 63 is used for measuring the ambient temperature. When the temperature measured by the first temperature detector 61 is higher than that measured by the third temperature detector 63, a stable temperature difference is formed between the cold end 11 and the hot end 12 of the thermoelectric power generation device 10, and a low-voltage current is formed. This current may be stored in the energy storage device 20 as needed to maintain proper operation of the vehicle interior components.
The second temperature detector 62 can be used to measure the temperature of the heating device 50 at the cooling liquid outlet 142, and when the temperature measured by the first temperature detector 61 is higher than that measured by the second temperature detector 62, a part of the low-voltage current formed between the cold end 11 and the hot end 12 can be stored in the energy storage device 20, and the other part can be provided to the heating device 50 to heat the vehicle.
Based on the same concept as the vehicle-mounted thermal management system 100, the invention also provides a vehicle, which comprises a frame, a vehicle-interior heat-generating component 201 and the vehicle-mounted thermal management system 100. Wherein, the cold end 11 of the thermoelectric generation device 10 is connected with the frame, and the hot end 12 of the thermoelectric generation device 10 is connected with the heat generating component 201 in the vehicle.
In particular, when the vehicle starts to operate, the heat generating component 201 in the vehicle normally operates and generates heat. The heat is transferred to the hot end 12 of the thermoelectric power generation device 10 through the coolant, and at this time, the temperature of the inlet port 141 of the coolant pipeline 14 is measured by the first temperature detector 61, and the temperature of the cold end 11 is measured by the third temperature detector 63. When the temperature measured by the first temperature detector 61 is higher than that measured by the third temperature detector 63, a stable temperature difference is formed between the cold end 11 and the hot end 12, and low-voltage current is generated. The low-voltage current is transmitted to the energy storage device 20 through the transmission of the wire harness 13 and stored.
Energy storage device 20 may be used to charge the battery when the vehicle battery is low, thereby providing a source of power for the vehicle. The temperature of the inlet port 141 of the coolant line 14 is measured by the first temperature detector 61, and the temperature of the heater unit 50 at the outlet port 142 of the coolant line 14 is measured by the second temperature detector 62. If the temperature measured by the first temperature detector 61 is higher than the temperature measured by the second temperature detector 62, the coolant supplies a part of the heat generated by the heat generating component 201 in the vehicle interior to the heater unit 50, thereby heating the vehicle interior. Therefore, the thermoelectric power generation is realized, and meanwhile, a heat management mode can be realized, so that the energy recovery and utilization rate is high.
The vehicle-mounted thermal management system 100 and the vehicle in the above embodiment have at least the following advantages:
1) stable low-voltage current is formed by utilizing the naturally formed stable temperature difference between the cold environment and the heating component 201 in the vehicle, so as to realize temperature difference power generation;
2) compared with photovoltaic power generation or a mode of performing temperature difference power generation by using tail gas, sunlight and the like as heat sources, the method is more suitable for cold areas in winter through the temperature difference between the external low-temperature environment and the heating component 201 in the vehicle, and the formed temperature difference is more stable;
3) the heat energy generated by the heat generating component 201 in the vehicle interior can be supplied to the in-vehicle heater 50 by the transmission of the coolant, thereby heating the vehicle interior, realizing a heat management mode, and making full use of the energy.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An on-board thermal management system, comprising:
the thermoelectric power generation device comprises a cold end, a hot end and a wire harness connected between the cold end and the hot end, wherein the cold end is connected with a frame, the hot end is connected with a heating component in the frame, and low-voltage current is formed between the cold end and the hot end and is transmitted through the wire harness;
the energy storage device is connected between the cold end and the hot end through the wire harness;
and the unidirectional power supply device is connected between the energy storage device and the cold end and between the energy storage device and the hot end through the wire harness, so that the low-voltage current is transmitted to the energy storage device from the temperature difference power generation device in a unidirectional mode.
2. The vehicle thermal management system according to claim 1, wherein the thermoelectric generation device comprises a coolant pipe, and the coolant pipe is arranged through the hot end and connects the hot end with the heat-generating component inside the vehicle.
3. The on-board thermal management system of claim 2, wherein the thermoelectric generation device comprises a cooling water pump disposed on the coolant line.
4. The on-board thermal management system of claim 2, wherein the coolant lines are externally wrapped with insulation.
5. The on-board thermal management system of claim 2, comprising a heat sink;
the cooling liquid pipeline comprises an inlet end and an outlet end, the heating component in the vehicle is connected to the inlet end, and the heat dissipation device is connected to the outlet end.
6. The vehicle thermal management system of claim 1, wherein the thermoelectric generation device comprises a coolant pipe, the coolant pipe is disposed through the hot end and comprises an inlet end and an outlet end;
the vehicle-mounted heat management system comprises a warm air device, and the warm air device is arranged at the outlet end.
7. The vehicle-mounted thermal management system according to claim 1, wherein the thermoelectric generation device comprises a coolant pipeline, the coolant pipeline is penetratingly arranged at the hot end and comprises a first branch and a second branch which are independent of each other, a first switch is arranged on the first branch to control on-off of the first branch, and a second switch is arranged on the second branch to control on-off of the second branch;
the vehicle-mounted thermal management system comprises a warm air device, and the warm air device is arranged on the first branch;
the vehicle-mounted thermal management system comprises a heat dissipation device, and the heat dissipation device is arranged on the second branch.
8. The vehicle thermal management system of claim 1, comprising temperature measuring devices respectively connected to the cold end and the hot end for measuring temperatures of the cold end and the hot end, respectively.
9. The on-board thermal management system of claim 8, wherein the thermoelectric generation device comprises a coolant conduit disposed through the hot end and comprising an inlet end and an outlet end;
the temperature measuring device comprises a first temperature detector, a second temperature detector and a third temperature detector, wherein the first temperature detector is arranged at the inlet end, the second temperature detector is arranged at the outlet end, and the third temperature detector is arranged at the cold end.
10. A vehicle comprising a frame, an in-vehicle heat-generating component, and the on-board thermal management system of any of claims 1-9;
the cold end of the temperature difference power generation device is connected with the frame, and the hot end of the temperature difference power generation device is connected with a heating component in the vehicle.
CN202111354784.4A 2021-11-16 2021-11-16 Vehicle-mounted heat management system and vehicle Pending CN113978250A (en)

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