Vehicle thermal management system and vehicle
By designing a vehicle thermal management system in new energy vehicles, the heat from the battery is transferred to the drying chamber and the coolant temperature is optimized, solving the problem of unutilized heat from the battery coolant and achieving efficient energy utilization and improved vehicle performance.
Patent Information
- Application Number
- CN202423004372.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing new energy vehicles, the heat of the battery coolant is not fully utilized, resulting in heat waste and affecting energy efficiency and vehicle power consumption.
A vehicle thermal management system was designed to transfer the battery's heat to the drying chamber through a coolant circulation loop, utilize the battery's waste heat to heat the drying chamber in the passenger compartment, and optimize the coolant temperature through a radiator and a cooling circuit to achieve efficient heat utilization.
It improves energy efficiency, reduces vehicle power consumption, enhances the user experience, and improves battery heat dissipation and passenger cabin comfort.
Smart Images
Figure CN223728827U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to vehicle technical field, especially a kind of vehicle thermal management system and vehicle. BACKGROUND
[0002] At present, new energy vehicle type generally adopts liquid cooling mode to cool battery, when low-temperature coolant flows through battery, the heat of battery is absorbed to form high-temperature coolant, radiator radiates high-temperature coolant, and high-temperature coolant becomes low-temperature coolant, the heat of high-temperature coolant is not fully utilized in this process, resulting in heat waste. SUMMARY
[0003] The utility model provides a kind of vehicle thermal management system and vehicle, can make full use of the waste heat of battery, improve energy utilization, reduce whole vehicle power consumption.
[0004] According to the vehicle thermal management system of the first aspect embodiment of the utility model, comprising:
[0005] Battery;
[0006] Coolant circulation loop, including the first cold flow section and the first hot flow section that are connected with each other, the first cold flow section is used to radiate the battery;
[0007] Radiator, it is connected to the first hot flow section to radiate the first hot flow section;
[0008] First heat exchanger, it is connected to the first hot flow section;
[0009] Drying box, it is connected to the first heat exchanger;
[0010] Wherein, the first heat exchanger is used to exchange heat between the drying box and the first hot flow section.
[0011] According to the vehicle thermal management system of the utility model embodiment, at least has following beneficial effects:
[0012] The utility model embodiment passes through setting first heat exchanger and drying box, when battery works and heats, the first cold flow section of coolant circulation loop will absorb the heat of battery, the heat of cooling liquid after flowing to the first hot flow section, the heat of the first hot flow section is transferred to drying box in first heat exchanger, so that the waste heat of battery can be fully utilized, improve the use car experience, radiator can take away the heat of the first hot flow section, and drying box also takes away part of the heat of the first hot flow section, can improve the heat dissipation effect to battery.
[0013] According to some embodiments of the utility model, the vehicle thermal management system further includes a first switch connected between the first heat exchanger and the first hot flow section to turn on or turn off the first heat exchanger and the first hot flow section.
[0014] According to some embodiments of the present application, the vehicle thermal management system further comprises a first heater, the first heater is electrically connected with the battery, the first heater is used for heating the drying box, and the first switch is configured to be in an off state when the first heater is in an on state, so as to disconnect the first heat exchanger and the first hot flow section.
[0015] According to some embodiments of the present application, the first heater is a PTC heater.
[0016] According to some embodiments of the present application, the first heat exchanger is arranged around the outer periphery of the drying box.
[0017] According to some embodiments of the present application, the vehicle thermal management system comprises a cooling liquid branch, a refrigeration circuit and a second heat exchanger, one end of the cooling liquid branch is connected with the first cold flow section, the other end is connected with the first hot flow section, cooling liquid in the cooling liquid branch flows from the first hot flow section to the first cold flow section, the refrigeration circuit comprises a second hot flow section and a second cold flow section connected with each other, and the second heat exchanger is connected between the second cold flow section and the cooling liquid branch to exchange heat between the second cold flow section and the cooling liquid branch.
[0018] According to some embodiments of the present application, the vehicle thermal management system further comprises a second switch, the second switch is connected to the cooling liquid branch, and the second switch is used to turn on or turn off the cooling liquid branch and the cooling liquid circulation circuit.
[0019] According to some embodiments of the present application, the vehicle thermal management system further comprises a second heater, the second heater is electrically connected with the battery, the second heater is used for heating the battery, and the second switch is configured to be in an off state when the second heater is in an on state, so as to disconnect the cooling liquid branch and the cooling liquid circulation circuit.
[0020] According to some embodiments of the present application, the drying box is arranged in the passenger cabin of the vehicle.
[0021] The vehicle according to the second aspect of the present application comprises the vehicle thermal management system according to the first aspect of the present application.
[0022] The vehicle according to the present application has at least the beneficial effects described above, and details are not repeated here.
[0023] The additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter in the description of the application, which will be given in connection with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS
[0024] The present application will be further described with reference to the drawings and examples, in which:
[0025] Figure 1 A schematic diagram of a vehicle thermal management system according to some embodiments of the present application.
[0026] Reference signs:
[0027] First cold flow section 100;
[0028] First hot flow section 200;
[0029] Coolant branch 300;
[0030] Refrigeration circuit 400, second cold flow section 410, second hot flow section 420. DETAILED DESCRIPTION
[0031] Embodiments of the present application will now be described in detail below, examples of which are shown in the accompanying drawings, in which the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application only, and should not be understood as limiting the present application.
[0032] In the rapid development of modern automotive technology, the innovative design of vehicle thermal management systems has become a key link to improve vehicle performance and driving experience. The present application aims to explore a novel vehicle thermal management system, which not only focuses on optimizing the thermal energy utilization efficiency inside the vehicle, but also strives to improve the overall energy utilization rate, providing passengers with a more comfortable and environmentally friendly travel experience.
[0033] REFERENCE Figure 1As shown in the illustration, this utility model provides a vehicle thermal management system designed to optimize the utilization of thermal energy within the vehicle, improve energy efficiency, and enhance the passenger experience. Specifically, the vehicle thermal management system includes a battery, a coolant circulation loop, a radiator, a first heat exchanger, and a drying chamber. The coolant circulation loop is a closed loop, with coolant circulating within it. This closed design ensures continuous circulation of coolant within the system, thereby achieving efficient heat transfer and distribution. The coolant circulation loop includes a first cold flow section 100 and a first hot flow section 200 connected in a closed loop. The temperature of the first cold flow section 100 is lower than the temperature of the first hot flow section 200. The first cold flow section 100 is used to dissipate heat from the battery. The radiator is connected to the first hot flow section 200 and is used to dissipate heat from the first hot flow section 200 to reduce its temperature. The radiator may be equipped with a fan or a coolant pump. The flow direction of the coolant can be referenced... Figure 1 The arrow in the diagram indicates the direction. The first heat exchanger is connected to the first heat flow section 200. Figure 1 The heat exchanger shown is the first heat exchanger described above, which is located on the outer periphery of the drying chamber. The drying chamber is connected to the first heat exchanger, which is used to exchange heat between the drying chamber and the first heat flow section 200. That is, the heat from the first heat flow section 200 can be transferred to the drying chamber through the first heat exchanger.
[0034] When the battery generates heat during operation, the first cold flow section 100 of the coolant circulation loop absorbs the heat from the battery. After the coolant in the first cold flow section 100 heats up, it flows into the first hot flow section 200. The heat from the first hot flow section 200 is transferred to the drying chamber through the first heat exchanger. Passengers can use the drying chamber to dry their clothes or umbrellas, thereby making full use of the battery's residual heat, improving energy efficiency, reducing overall vehicle power consumption, and enhancing the user experience. The radiator can remove the heat from the first hot flow section 200, and the drying chamber also removes some of the heat from the first hot flow section 200, which can improve the heat dissipation effect on the battery, reduce the workload of the cooling system, increase the heat load, and allow the residual heat to be further cooled by the drying chamber before being cooled by the radiator.
[0035] In some embodiments, the drying box is located in the passenger compartment of the vehicle, allowing passengers to conveniently place clothing or umbrellas inside while traveling.
[0036] In some embodiments, a temperature sensor is provided inside the drying oven to detect the temperature inside the drying oven, and a display screen is provided on the outer periphery of the drying oven. The display screen is electrically connected to the temperature sensor and is used to display the temperature value detected by the temperature sensor.
[0037] In some embodiments, a fan can be installed inside the drying oven to drive the hot air to circulate, which can improve the drying effect.
[0038] In some embodiments, the inner circumferential wall of the drying box is provided with a heat preservation layer, which can play a heat preservation role and make the heat in the drying box not easy to dissipate.
[0039] Referring to Figure 1 In some embodiments, the vehicle thermal management system comprises a function controller for controlling the opening or closing of the drying function of the drying box.
[0040] In some embodiments, the vehicle thermal management system further comprises a first switch connected between the first heat exchanger and the first heat flow section 200 to turn on or turn off the first heat exchanger and the first heat flow section 200. When the first switch turns on the first heat exchanger and the first heat flow section 200, the coolant in the first heat flow section 200 can enter the inner cavity of the first heat exchanger, so that the coolant can exchange heat with the drying box, the temperature of the drying box will rise, thereby turning on the drying function; when the first switch turns off the first heat exchanger and the first heat flow section 200, the coolant in the first heat flow section 200 cannot enter the inner cavity of the first heat exchanger, so it cannot exchange heat with the drying box, the temperature of the drying box will not rise, thereby turning off the drying function. That is, the first switch is used to realize the opening or closing of the drying function of the drying box, and the drying function can be used as needed.
[0041] As Figure 1 In some embodiments, the first heat exchanger is arranged around the outer periphery of the drying box, which can enhance the heat exchange performance.
[0042] In some embodiments, the vehicle thermal management system further comprises a first heater, Figure 1 The PTC shown in the middle is the first heater described above. The PTC, also known as PTC heater, is mainly made of ceramic heating element and aluminum pipe, and can generate heat when powered on. The first heater is electrically connected with the battery, and the battery can supply power to the first heater. The first heater is used to heat the drying box, and when the residual heat of the battery cannot meet the demand of the drying function, the first heater can be turned on to heat the drying box, and the first switch is turned off to disconnect the first heat exchanger and the first heat flow section 200. That is, when the first heater is in the on state, the first switch is in the off state. At this time, the temperature of the drying box will not affect the temperature of the first heat flow section 200, so that the temperatures of the two do not interfere with each other, and the heat dissipation performance of the battery is not affected.
[0043] When the vehicle is in a low ambient temperature environment, the first heater can be turned on to heat the drying box and enable the drying function. Since the battery has a heating requirement, the first switch can also be turned on to connect the first heat exchanger and the first heat flow section 200, and the heat of the first heater can be transferred to the first heat flow section 200 through the first heat exchanger, thereby increasing the temperature of the battery.
[0044] Referring toFigure 1 As shown in some embodiments, the vehicle thermal management system comprises a coolant branch 300, a refrigeration circuit 400 and a second heat exchanger, one end of the coolant branch 300 is connected with the first cold flow section 100, and the other end is connected with the first hot flow section 200, the coolant in the coolant branch 300 flows from the first hot flow section 200 to the first cold flow section 100, the air conditioning system of the vehicle is connected to the refrigeration circuit 400, the refrigerant in the refrigeration circuit 400 circulates, the refrigeration circuit 400 comprises a second cold flow section 410 and a second hot flow section 420 connected with each other, the temperature of the second cold flow section 410 is lower than that of the second hot flow section 420, and the second heat exchanger is connected to the second cold flow section 410 and the coolant branch 300 to exchange heat between the second cold flow section 410 and the coolant branch 300, Figure 1 The chiller in the refrigeration circuit 400 is the second heat exchanger described above. In operation, part of the coolant in the first hot flow section 200 flows into the coolant branch 300, and the other part of the coolant passes through the radiator. The heat of the coolant branch 300 can be conducted to the second cold flow section 410 through the second heat exchanger, thereby reducing the temperature of the coolant in the coolant branch 300. The radiator and the second heat exchanger play a double cooling role, which can improve the heat dissipation effect of the battery.
[0045] Referring to Figure 1 As shown in some embodiments, the vehicle thermal management system further comprises a second switch connected to the coolant branch 300, and the second switch is used to turn on or turn off the coolant branch 300 and the coolant circulation loop. In winter or in the case of low ambient temperature, the battery has heating demand, and the second switch can be turned off to avoid the second cold flow section 410 exchanging heat with the coolant circulation loop through the coolant branch 300, thereby reducing the temperature of the coolant in the coolant circulation loop. When the battery has heat dissipation demand, the second switch can be turned on to allow the second cold flow section 410 to exchange heat with the coolant circulation loop through the coolant branch 300, thereby reducing the temperature of the coolant in the coolant branch 300.
[0046] In winter or in the case of low ambient temperature, the performance of the battery will be affected. In some embodiments, the vehicle thermal management system further comprises a second heater electrically connected to the battery, and the battery can supply power to the second heater. The second heater is used to heat the battery. When the ambient temperature is low, the second heater can be turned on to heat the battery, and the second switch is turned off to avoid the coolant continuing to exchange heat with the refrigeration circuit 400. That is, when the second heater is in the open state, the second switch is in the closed state, and the radiator is closed at the same time, so that the temperature of the coolant in the coolant circulation loop is high, which plays a heating role on the battery, thereby increasing the temperature of the battery and reducing the influence of low temperature on the performance of the battery.
[0047] The utility model embodiment further provides a kind of vehicle, including the vehicle thermal management system of above embodiment, when battery works and generates heat, the first cold flow section 100 of cooling liquid circulation loop will absorb the heat of battery, cooling liquid in the first cold flow section 100 flows into first hot flow section 200 after temperature rise, the heat of first hot flow section 200 is transferred to drying box by first heat exchanger, passenger can use drying box to dry clothes or umbrella, to can make full use of the waste heat of battery, improve energy utilization, reduce the power consumption of whole vehicle, improve the experience of using vehicle, radiator can take away the heat of first hot flow section 200, and drying box also takes away part of the heat of first hot flow section 200, can improve the heat dissipation effect to battery.
[0048] Specifically, the vehicle of the utility model embodiment can be a private car, such as a sedan, an SUV, an MPV or a pickup truck, etc. The vehicle can also be an operational vehicle, such as a van, a bus, a small truck or a large trailer, etc. The vehicle can be a gasoline car or a new energy car. When the vehicle is a new energy car, it can be a hybrid car or a pure electric car.
[0049] In the description of the utility model, it should be understood that, in relation to the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0050] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two. Greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.
[0051] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing and connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0052] The utility model embodiments are described in detail above in combination with the drawings, but the utility model is not limited to the above embodiments, and various changes can be made within the knowledge range of ordinary skilled in the art without departing from the purpose of the utility model.
Claims
1. A vehicle thermal management system, characterized by, The vehicle thermal management system comprises: a battery; a cooling liquid circulation loop comprising a first cold flow section and a first hot flow section connected to each other, the first cold flow section being configured to dissipate heat from the battery; a radiator connected to the first hot flow section to dissipate heat from the first hot flow section; a first heat exchanger connected to the first hot flow section; a drying box connected to the first heat exchanger; wherein the first heat exchanger is configured to exchange heat between the drying box and the first hot flow section.
2. The vehicle thermal management system of claim 1, wherein, The vehicle thermal management system further comprises a first switch connected between the first heat exchanger and the first hot flow section to turn on or turn off the first heat exchanger and the first hot flow section.
3. The vehicle thermal management system of claim 2, wherein, The vehicle thermal management system further comprises a first heater electrically connected to the battery, the first heater being configured to heat the drying box, and the first switch being configured to be turned off when the first heater is turned on to turn off the first heat exchanger and the first hot flow section.
4. The vehicle thermal management system of claim 3, wherein, The first heater is a PTC heater.
5. The vehicle thermal management system of claim 3, wherein, The first heat exchanger is arranged around an outer periphery of the drying box.
6. The vehicle thermal management system of claim 1, wherein, The vehicle thermal management system further comprises a cooling liquid branch, a refrigeration circuit and a second heat exchanger, one end of the cooling liquid branch being connected to the first cold flow section and the other end of the cooling liquid branch being connected to the first hot flow section, cooling liquid in the cooling liquid branch flowing from the first hot flow section to the first cold flow section, the refrigeration circuit comprising a second hot flow section and a second cold flow section connected to each other, and the second heat exchanger being connected to the second cold flow section and the cooling liquid branch to exchange heat between the second cold flow section and the cooling liquid branch.
7. The vehicle thermal management system of claim 6, wherein, The vehicle thermal management system further comprises a second switch connected to the cooling liquid branch, the second switch being configured to turn on or turn off the cooling liquid branch and the cooling liquid circulation loop.
8. The vehicle thermal management system of claim 7, wherein, The vehicle thermal management system further comprises a second heater electrically connected to the battery, the second heater being configured to heat the battery, and the second switch being configured to be turned off when the second heater is turned on to turn off the cooling liquid branch and the cooling liquid circulation loop.
9. The vehicle thermal management system of claim 1, wherein, The drying box is arranged in a passenger compartment of the vehicle.
10. A vehicle characterized by comprising: The vehicle thermal management system according to any one of claims 1 to 9.