Thermal management system and vehicle

Abstract

The present disclosure provides a kind of thermal management system and vehicle, it is related to vehicle technical field.The thermal management system includes: thermal management module, including the compressor, condenser, expansion valve, evaporator in turn, the condenser has cooling channel;Control module, including the heating assembly and control assembly of fixed connection, the control assembly is located in the heating assembly side close to the compressor and is fixedly connected with the heating assembly, the control assembly is used to control compressor and the operation of the heating assembly, the heating assembly is communicated with the cooling channel, and the heating assembly is used to heat the first cooling liquid of the cooling channel.The maintenance cost of thermal management system can be reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of vehicles, in particular to a thermal management system and a vehicle. BACKGROUND

[0002] With the rapid development of vehicles, new energy vehicles, especially pure electric vehicles, stand out. A pure electric vehicle is composed of a battery, an electric drive and an electric control three-electric system, and the three-electric system all need a thermal management system for cooling and heating.

[0003] However, the maintenance cost of the existing thermal management system is high.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. CONTENT OF THE UTILITY MODEL

[0005] The present disclosure provides a thermal management system and a vehicle, which can reduce the maintenance cost of the thermal management system.

[0006] According to one aspect of the present disclosure, a thermal management system is provided, comprising: a thermal management module comprising a compressor, a condenser, an expansion valve and an evaporator connected in sequence, the condenser having a cooling channel; a control module comprising a heating assembly and a control assembly fixedly connected, the control assembly being located on the side of the heating assembly close to the compressor and fixedly connected with the heating assembly, the control assembly being used for controlling the compressor and the heating assembly to operate, the heating assembly being in communication with the cooling channel, and the heating assembly being used for heating a first cooling liquid of the cooling channel.

[0007] In an embodiment of the present disclosure, the evaporator has a heat exchange pipeline; the control assembly comprises a control housing and a controller and a cooling plate arranged in the control housing; the control housing has a cooling cavity, the cooling cavity being in communication with the heat exchange pipeline, the cooling plate being located between the controller and the cooling cavity and blocking the cooling cavity, and the controller being stacked on the cooling plate.

[0008] In an embodiment of the present disclosure, the cooling plate comprises a plate body and a plurality of fins arranged at intervals on the plate body, the plate body being fixedly connected with the controller on the side away from the fins and blocking the cooling cavity, and the fins extending into the cooling cavity.

[0009] In an embodiment of the present disclosure, the control housing has an inlet and an outlet, the inlet being in communication with the heat exchange pipeline; The cooling cavity comprises a first chamber and a second chamber in communication, the first chamber is in communication with the liquid inlet, and the second chamber is in communication with the liquid outlet.

[0010] In one embodiment of the present disclosure, a partition is arranged between the first chamber and the second chamber, and a gap is formed between the partition and the side wall of the cooling cavity away from the liquid inlet.

[0011] In one embodiment of the present disclosure, the extending direction of the fins is the same as the extending direction of the partition.

[0012] In one embodiment of the present disclosure, the heating assembly comprises a heating shell and a heating element arranged in the heating shell. The heating shell is fixedly connected to the side of the control shell away from the compressor, the heating shell has a heating cavity, the heating cavity is in communication with the cooling channel, the heating element is arranged in the heating cavity, and the controller is used to control the operation of the heating element.

[0013] In one embodiment of the present disclosure, the condenser, the expansion valve and the evaporator are fixed to the compressor, and a gap is left between the condenser and the evaporator.

[0014] In one embodiment of the present disclosure, the compressor has a shell, the shell has a first conveying channel and a second conveying channel for conveying refrigerant. The condenser has a third conveying channel for conveying refrigerant, and the first conveying channel is in communication with the third conveying channel. The evaporator has a fourth conveying channel for conveying refrigerant, and the second conveying channel is in communication with the fourth conveying channel.

[0015] According to another aspect of the present disclosure, a vehicle is provided, comprising the thermal management system of any of the above embodiments.

[0016] The thermal management system and the vehicle of the present disclosure integrate the control assembly of the compressor into the heating assembly, separate the control assembly of the compressor from the compressor, greatly simplify the thermal management module, improve the integration of the thermal management module, and reduce the weight of the thermal management module. At the same time, since the control assembly is decoupled from the compressor, the control assembly does not need to be replaced when the thermal management module is replaced as a whole, thereby reducing the maintenance cost. In addition, the operation of the compressor and the heating assembly is controlled by the control assembly, so that the control parts of the compressor and the heating assembly are highly integrated, which is conducive to reducing the production cost and the weight of the product.

[0017] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, further serve to explain the principles of the present disclosure. It is apparent that the drawing in the following description is only some embodiments of the present disclosure, and other drawings can be obtained by those of ordinary skill in the art without creative labor on the basis of these drawings.

[0019] Figure 1 The overall structure of the heat management system in one embodiment of the present disclosure.

[0020] Figure 2 The structure of the control module in one embodiment of the present disclosure.

[0021] Figure 3 The structure of the control assembly in one embodiment of the present disclosure, intended to show the cooling cavity.

[0022] Figure 4 The cross-sectional view of the control assembly in one embodiment of the present disclosure, intended to show the cooling plate.

[0023] BRIEF DESCRIPTION OF DRAWINGS 1, heat management module; 11, compressor; 111, outer shell; 112, second interface; 12, condenser; 13, expansion valve; 14, evaporator; 2, control module; 21, heating assembly; 211, heating shell; 212, water inlet; 213, water outlet; 22, control assembly; 221, control shell; 222, controller; 223, cooling plate; 2231, plate body; 2232, fin; 224, first chamber; 225, second chamber; 226, liquid inlet; 227, liquid outlet; 228, partition; 229, first interface. DETAILED DESCRIPTION

[0024] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. Like reference numerals refer to like elements throughout the description of the figures and, as such, a detailed description of some figures can be omitted. In addition, the drawings are only schematic and are not necessarily drawn to scale.

[0025] Although relative terms are used in this specification, such as "upper", "lower", to describe one component's relationship to another component of the icon, these terms are used herein solely for convenience and are not intended to limit the scope of the disclosure to a particular orientation. It is to be understood that if the icon were turned over, such that the "upper" component became the "lower" component, then the described orientation would be reversed. When a structure is "on" another structure, it can mean that the structure is formed integrally with the other structure, or that the structure is "directly" on the other structure, or that the structure is "indirectly" on the other structure via another structure.

[0026] The terms "one", "a", "an", "the", and "at least one" are used to indicate that there is one or more of the elements / components / etc.; the terms "comprising" and "having" are used to indicate an open-ended inclusion of the elements / components / etc. in the description of a process, a method, an article, or an apparatus; the terms "first", "second", and "third", etc. are used only as labels, and do not imply any limitation on the number of elements.

[0027] The embodiment of the present disclosure also provides a vehicle, which can be a new energy power vehicle, a hybrid vehicle, or a traditional fuel vehicle. Taking the new energy power vehicle as an example, the vehicle can include a vehicle body, a chassis, a battery pack, and a thermal management system. The vehicle body has a cabin, and the thermal management system can be installed in the cabin. The battery pack can be installed below the chassis or the vehicle body.

[0028] Referring to Figure 1 and Figure 2 , the thermal management system includes a thermal management module 1 and a control module 2. The thermal management module 1 includes a compressor 11, a condenser 12, an expansion valve 13, and an evaporator 14 connected in sequence, and the condenser 12 has a cooling channel. The control module 2 includes a heating assembly 21 and a control assembly 22 fixedly connected, the control assembly 22 is located on the side of the heating assembly 21 close to the compressor 11 and is fixedly connected with the heating assembly 21, the control assembly 22 is used for controlling the compressor 11 and the heating assembly 21 to operate, the heating assembly 21 is in communication with the cooling channel, and the heating assembly 21 is used for heating a first cooling liquid of the cooling channel, so that the heated first cooling liquid provides heat for the battery pack and the passenger cabin.

[0029] Thus, the refrigerant compressed by the compressor 11 becomes a high-temperature and high-pressure gas, then enters the condenser 12 to become a low-temperature and high-pressure liquid after cooling, then becomes a low-temperature and low-pressure mist after throttling and decompression by the expansion valve 13, then becomes a low-temperature and low-pressure gas after evaporation by the evaporator 14, and absorbs heat in the passenger cabin at the same time of evaporation of the mist by the evaporator 14, thereby achieving the refrigeration effect. By integrating the control assembly 22 of the compressor 11 on the heating assembly 21, the control assembly 22 of the compressor 11 is separated from the compressor 11, which greatly simplifies the thermal management module 1, improves the integration of the thermal management module 1, and reduces the weight of the thermal management module 1. At the same time, since the control assembly 22 is decoupled from the compressor 11, when the thermal management module 1 is replaced as a whole, the control assembly 22 does not need to be replaced, thereby reducing the maintenance cost (since the entire thermal management module 1 needs to be replaced when any part of the thermal management module 1 fails, the cost of the control assembly 22 accounts for one-third of the cost of the thermal management module 1). In addition, the operation of the compressor 11 and the heating assembly 21 is controlled by the control assembly 22, so that the control parts of the compressor 11 and the heating assembly 21 are highly integrated, which is conducive to reducing the production cost and the weight of the product.

[0030] In an embodiment of the present disclosure, the refrigerant circulating in the thermal management module 1 can be refrigeration-grade propane (R290), which is conducive to environmental protection. In other embodiments of the present disclosure, the refrigerant circulating in the thermal management module 1 can be tetrafluoroethane (R-134a) or tetrafluoro-propylene (R1234yf) and the like.

[0031] In an embodiment of the present disclosure, referring to Figure 1 , the condenser 12, the expansion valve 13, and the evaporator 14 are fixed to the compressor 11 by bolt connection, welding, or the like, and a gap is left between the condenser 12 and the evaporator 14, which is greater than half the length of the compressor 11; the expansion valve 13 is located between the condenser 12 and the evaporator 14. In this way, the condenser 12, the expansion valve 13, and the evaporator 14 are integrated on the compressor 11, so that the thermal management module 1 is highly integrated, which is conducive to reducing the cost. In addition, a gap is left between the condenser 12 and the evaporator 14 to separate the condenser 12 and the evaporator 14, so as to reduce the interference generated by the operation of the condenser 12 and the evaporator 14, which is conducive to improving the stability and reliability of the thermal management module 1.

[0032] In an embodiment of the present disclosure, referring to Figure 1, the compressor 11 has a shell 111, the shell 111 has a first conveying passage and a second conveying passage for conveying refrigerant. The condenser 12 has a third conveying passage for conveying refrigerant, the cooling passage is not communicated with the third conveying passage, the first conveying passage is communicated with the third conveying passage; the evaporator 14 has a fourth conveying passage for conveying refrigerant, the second conveying passage is communicated with the fourth conveying passage. In this way, the flow channel of the refrigerant can be expanded on the shell 111 of the compressor 11, so that the heat management module 1 does not depend on the flow channel plate, the cost is reduced, and the risk of refrigerant leakage is reduced, and the radiation area of the noise generated by the compressor 11 during operation is reduced.

[0033] In an embodiment of the present disclosure, the shell 111 has a fifth conveying passage and a sixth conveying passage for conveying refrigerant. The third conveying passage, the fifth conveying passage, the expansion valve 13, the sixth conveying passage and the fourth conveying passage are sequentially communicated, so that most of the conveying passages of the refrigerant are located on the shell 111, further reducing the cost.

[0034] In an embodiment of the present disclosure, the condenser 12 has a liquid storage function, that is, the condenser 12 and the liquid storage tank are integrated. In this way, the volume of the heat management module 1 can be further reduced, and the cost is reduced.

[0035] In an embodiment of the present disclosure, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , the evaporator 14 has a heat exchange pipe, the heat exchange pipe has a second cooling liquid, and the heat exchange pipe is not communicated with the fourth conveying passage to prevent interference between the second cooling liquid and the refrigerant. The control assembly 22 includes a control shell 221 and a controller 222 and a cooling plate 223 arranged in the control shell 221; the control shell 221 can be circular, square, oval or irregular geometric shape, which is not limited here. The control shell 221 has a cooling cavity, the cooling cavity is communicated with the heat exchange pipe through a pipeline, the cooling plate 223 is located between the controller 222 and the cooling cavity, and seals the cooling cavity, and the controller 222 is stacked on the cooling plate 223. In this way, the second cooling liquid in the heat exchange pipe of the evaporator 14 can be conveyed into the cooling cavity, and the heat generated by the controller 222 can be transmitted to the cooling cavity through the cooling plate 223, and the second cooling liquid is used for heat exchange of the controller 222, so as to improve the service life of the controller 222.

[0036] In an embodiment of the present disclosure, the cooling plate 223 comprises a plate body 2231 and a plurality of fins 2232 spaced apart from the plate body 2231. The number of fins 2232 can be two, three, four, etc. Of course, the number of fins 2232 can also be one, which is set according to specific needs and is not limited herein. The side of the plate body 2231 away from the fins 2232 is fixedly connected to the controller 222 by bolts, welding or the like, and blocks the cooling cavity, and the fins 2232 extend into the cooling cavity. The materials of the plate body 2231 and the fins 2232 can be copper, aluminum or other materials with high thermal conductivity. In this way, by extending the fins into the cooling cavity, the controller 222 and the second cooling liquid can be sequentially heat-exchanged through the plate body 2231 and the fins 2232, so as to efficiently cool the controller 222.

[0037] In an embodiment of the present disclosure, referring to Figure 2 、 Figure 3 , the control housing 221 has an inlet 226 and an outlet 227, and the inlet 226 is in communication with the heat exchange pipeline. The cooling cavity comprises a first chamber 224 and a second chamber 225 in communication, the first chamber 224 is in communication with the inlet 226, and the second chamber 225 is in communication with the outlet 227. In this way, the cooling cavity is divided into the first chamber 224 and the second chamber 225 in communication, so that the second cooling liquid flows into the first chamber 224 from the inlet 226, then flows into the second chamber 225, and finally flows out from the outlet 227, so as to increase the path of the second cooling liquid in the cooling cavity, which is beneficial to improve the cooling effect.

[0038] In an embodiment of the present disclosure, the thermal management system can further comprise a cold air core. The inlet 226 is in communication with the heat exchange channel through a first pipeline, and the outlet 227 is in communication with the heat exchange channel through a second pipeline, so that the second cooling liquid can be circulated. The second pipeline can be arranged around the battery pack and the cold air core. After the second cooling liquid flows out from the outlet 227, it can be heat-exchanged with the battery pack and the cold air core in the second pipeline during transportation, so as to cool the battery pack and the cold air core in a high-temperature environment, so that the battery pack can work normally in a high-temperature environment, and the passenger cabin is cooled, improving the comfort of the passenger cabin.

[0039] In an embodiment of the present disclosure, referring to Figure 2 、 Figure 3The liquid inlet 226 and the liquid outlet 227 are distributed along the height direction of the control shell 221, and the liquid inlet 226 is located directly below the liquid outlet 227, so that the first chamber 224 and the second chamber 225 are distributed along the height direction of the control shell 221, and the plurality of fins 2232 are distributed along the height direction of the control shell 221. In this way, the second cooling liquid is transported from low to high in the cooling cavity, which can slow down the flow rate of the second cooling liquid in the cooling cavity, so that the controller 222 can fully exchange heat with the second cooling liquid, further improving the cooling effect of the controller 222. It should be noted that the height direction of the control shell 221 refers to the distribution direction of the liquid inlet 226 and the liquid outlet 227.

[0040] In an embodiment of the present disclosure, referring to Figure 3 、 Figure 4 A partition plate 228 is arranged between the first chamber 224 and the second chamber 225, and the partition plate 228 is fixedly connected to the bottom plate of the cooling cavity by welding, bonding, or integral connection. The partition plate 228 extends along the axis direction of the liquid inlet 226, and has a gap between the partition plate 228 and the side wall of the cooling cavity away from the liquid inlet 226. The side of the plate body 2231 close to the cooling cavity abuts against the side of the partition plate 228 close to the plate body 2231. In this way, the first chamber 224 and the second chamber 225 are separated by the partition plate 228, so that the second cooling liquid can form a "U"-shaped flow path in the cooling cavity, thereby increasing the flow path of the second cooling liquid in the cooling cavity and improving the cooling effect of the controller 222.

[0041] In an embodiment of the present disclosure, referring to Figure 4 The extension direction of the fin 2232 is the same as the extension direction of the partition plate 228, and the fin 2232 has a spacing with the bottom wall of the cooling cavity. In this way, the second cooling liquid can flow in the space between two adjacent fins 2232, so as to guide the flow of the second cooling liquid and improve the cooling effect.

[0042] In an embodiment of the present disclosure, referring to Figure 1 、 Figure 2The heating assembly 21 includes a heating housing 211 and a heating element disposed within the heating housing 211. The heating housing 211 can be circular, square, elliptical, or of irregular geometric shape, and is not limited thereto. The heating housing 211 is fixedly connected to the control housing 221 on the side away from the compressor 11 by bolts, snap-fits, or other means. An insulating baffle can be provided between the heating housing 211 and the control housing 221 to prevent mutual interference. The heating housing 211 has a heating cavity that communicates with a cooling channel containing a first coolant. The heating element is disposed in the heating cavity and can be a heating tube, heating wire, or other heating element. The controller 222 is used to control the operation of the heating element. That is, the power devices of the heating element and the power devices of the compressor 11 are integrated on a single circuit board, and the heating element and the compressor 11 share a microprocessor (MCU) and a filter. The power devices can be insulated-gate bipolar transistors (IGBTs) or insulated-gate field-effect transistors (MOS). In this way, the heating element can heat the first coolant, which is beneficial for heating surrounding parts in low-temperature environments and ensuring the normal operation of surrounding parts. The heating component 21 and the compressor 11 share a single controller 222, which reduces production costs and facilitates miniaturization.

[0043] In one embodiment of this disclosure, see Figure 2 The thermal management module 1 may further include a heater core. The heating housing 211 has an inlet 212 and an outlet 213 respectively connected to the heating chamber. The inlet 212 and outlet 213 are spaced apart along the height direction of the heating housing 211, with the inlet 212 located directly below the outlet 213. The inlet 212 is connected to the cooling channel via a third pipe, and the outlet 213 is connected to the cooling channel via a fourth pipe, so that the first coolant can circulate. The fourth pipe can be located around the battery pack and the heater core. After the first coolant is heated by the heating component 21, heat exchange can be performed on the battery pack and the heater core during the transportation process through the fourth pipe, so as to heat the battery pack and the heater core in low-temperature environments, enabling the battery pack to operate normally in low-temperature environments and to provide heating for the passenger compartment. It should be noted that the height direction of the heating housing 211 refers to the distribution direction of the inlet 212 and outlet 213.

[0044] In one embodiment of this disclosure, see Figure 1 The control housing 221 has a first interface 229 on the side near the compressor 11, and the compressor 11 has a second interface 112 on the side near the control housing 221. The first interface 229 and the second interface 112 are electrically connected by a wire. In this way, the controller 222 can be electrically connected to the compressor 11 through the first interface 229 and the second interface 112, so that the controller 222 can control the operation of the compressor 11.

[0045] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A thermal management system, characterized in that, include: The thermal management module (1) includes a compressor (11), a condenser (12), an expansion valve (13), and an evaporator (14) connected in sequence, wherein the condenser (12) has a cooling channel; The control module (2) includes a heating component (21) and a control component (22) that are fixedly connected. The control component (22) is located on the side of the heating component (21) close to the compressor (11) and is fixedly connected to the heating component (21). The control component (22) is used to control the operation of the compressor (11) and the heating component (21). The heating component (21) is connected to the cooling channel and is used to heat the first coolant in the cooling channel.

2. The thermal management system according to claim 1, characterized in that, The evaporator (14) has heat exchange pipes; The control assembly (22) includes a control housing (221) and a controller (222) and a cooling plate (223) disposed within the control housing (221). The control housing (221) has a cooling chamber that is connected to the heat exchange pipe. The cooling plate (223) is located between the controller (222) and the cooling chamber and blocks the cooling chamber. The controller (222) is stacked on the cooling plate (223).

3. The thermal management system according to claim 2, characterized in that, The cooling plate (223) includes a plate body (2231) and a plurality of fins (2232) spaced apart from the plate body (2231). The side of the plate body (2231) away from the fins (2232) is fixedly connected to the controller (222) and blocks the cooling cavity. The fins (2232) extend into the cooling cavity.

4. The thermal management system according to claim 3, characterized in that, The control housing (221) has a liquid inlet (226) and a liquid outlet (227), and the liquid inlet (226) is connected to the heat exchange pipe; The cooling chamber includes a first chamber (224) and a second chamber (225) that are connected to each other. The first chamber (224) is connected to the liquid inlet (226), and the second chamber (225) is connected to the liquid outlet (227).

5. The thermal management system according to claim 4, characterized in that, A partition (228) is provided between the first chamber (224) and the second chamber (225), and there is a gap between the partition (228) and the side wall of the cooling chamber away from the liquid inlet (226).

6. The thermal management system according to claim 5, characterized in that, The fin (2232) extends in the same direction as the partition (228).

7. The thermal management system according to claim 2, characterized in that, The heating assembly (21) includes a heating housing (211) and a heating element disposed within the heating housing (211); The heating housing (211) is fixedly connected to the control housing (221) on the side away from the compressor (11). The heating housing (211) has a heating cavity, which is connected to the cooling channel. The heating element is disposed in the heating cavity. The controller (222) is used to control the operation of the heating element.

8. The thermal management system according to claim 1, characterized in that, The condenser (12), expansion valve (13), and evaporator (14) are fixed to the compressor (11), and a gap is left between the condenser (12) and the evaporator (14).

9. The thermal management system according to any one of claims 1 to 8, characterized in that, The compressor (11) has a housing (111) having a first delivery channel and a second delivery channel for delivering refrigerant; The condenser (12) has a third delivery channel for delivering refrigerant, and the first delivery channel is connected to the third delivery channel; The evaporator (14) has a fourth delivery channel for delivering refrigerant, and the second delivery channel is connected to the fourth delivery channel.

10. A vehicle, characterized in that, Includes the thermal management system described in any one of claims 1 to 9.

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