Heat exchange system and vehicle

Abstract

The utility model relates to a heat exchange system and a vehicle, and the heat exchange system comprises a heat exchange loop which comprises a refrigeration module, a heat dissipation module and a heat exchange pipeline enabling the refrigeration module and the heat dissipation module to communicate end to end; the heat exchange medium circulates in the heat exchange loop; and the liquid return pipeline is configured to selectively communicate the outlet of the heat dissipation module with the outlet of the refrigeration module. The liquid return pipelines are arranged at the outlet of the refrigeration module and the outlet of the heat dissipation module, and the liquid return pipelines selectively communicate with the outlet of the refrigeration module and the outlet of the heat dissipation module; the temperature of the low-temperature heat exchange medium flowing out of the outlet of the refrigeration module can be adjusted through the high-temperature heat exchange medium flowing out of the outlet of the heat dissipation module, so that the temperature of the heat exchange medium flowing into the heat dissipation module is appropriate, and condensation can be prevented from being generated at the heat dissipation module and a cooled object; the heat exchange system can be suitable for environments with various temperatures and humidity, the environmental adaptability of the heat exchange system is improved, and the application range of the heat exchange system is widened.

Description

Technical Field

[0001] This application relates to the field of heat exchange technology, and more particularly to a heat exchange system and a vehicle. Background Technology

[0002] In related technologies, when dissipating heat from an object that needs to dissipate heat, it is necessary not only to consider the heat dissipation effect, but also to avoid adverse effects on the object itself or its normal operation as much as possible. For example, when using a heat exchange system to cool an object, condensation or even water droplets may form on the outer surface of the object, which may damage the structure of the object that needs to dissipate heat. When the object that needs to dissipate heat is an electrical device, the presence of condensation will also affect its normal operation. Therefore, the design of a heat exchange system needs to take into account multiple factors. Utility Model Content

[0003] This application provides a heat exchange system and a vehicle to improve the environmental adaptability and applicability of the heat exchange system, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a heat exchange system is provided, comprising:

[0005] The heat exchange circuit includes a refrigeration module, a heat dissipation module, and heat exchange piping that connects the refrigeration module and the heat dissipation module end to end;

[0006] The heat exchange medium flows through the heat exchange circuit;

[0007] The return line is configured to selectively connect the outlet of the heat dissipation module to the outlet of the cooling module.

[0008] In some embodiments, the return line includes:

[0009] The return pipe is connected at both ends to the outlet of the heat dissipation module and the outlet of the cooling module, respectively.

[0010] A return liquid control valve is installed on the return liquid pipe and has an open state. When the return liquid control valve is configured to be in the open state, it connects the outlet of the heat dissipation module and the outlet of the refrigeration module so that the heat exchange medium flows from the outlet of the heat dissipation module to the outlet of the refrigeration module.

[0011] In some embodiments, the heat exchange system further includes:

[0012] The first temperature sensor is located at the inlet of the heat dissipation module and is configured to detect the temperature of the heat exchange medium at the inlet of the heat dissipation module.

[0013] The return control valve is configured to open when the detection result of the first temperature sensor does not meet a first preset condition.

[0014] In some embodiments, the heat exchange system further includes:

[0015] The second temperature sensor is mounted on the heat dissipation module and is configured to detect the temperature of the environment in which the heat dissipation module is located.

[0016] A humidity sensor, mounted on the heat dissipation module, is configured to detect the humidity of the environment in which the heat dissipation module is located;

[0017] The return control valve is configured to open when the dew point temperature of the environment where the heat dissipation module is located, as determined by the detection results of the second temperature sensor and the humidity sensor, is higher than or equal to the detection result of the first temperature sensor, or to close when the dew point temperature of the environment where the heat dissipation module is located, as determined by the detection results of the second temperature sensor and the humidity sensor, is lower than the detection result of the first temperature sensor.

[0018] In some embodiments, the heat exchange system further includes:

[0019] The control module is communicatively connected to the first temperature sensor, the second temperature sensor, the humidity sensor, and the return liquid control valve. It is configured to determine the dew point temperature of the environment in which the heat dissipation module is located based on the detection results of the second temperature sensor and the humidity sensor, and to control the return liquid control valve to open or close based on the dew point temperature and the detection results of the first temperature sensor.

[0020] In some embodiments, the heat exchange piping includes:

[0021] The first connecting pipe connects the outlet of the cooling module and the inlet of the heat dissipation module, and the first temperature sensor is mounted on the first connecting pipe.

[0022] The second connecting pipe connects the outlet of the heat dissipation module and the inlet of the cooling module;

[0023] The two ends of the return pipe are connected to the first connecting pipe and the second connecting pipe respectively, so that the outlet of the heat dissipation module and the outlet of the cooling module are connected when the return control valve is opened.

[0024] In some embodiments, the return line further includes:

[0025] A power pump, mounted on the return pipe and connected in communication with the control module, is configured to drive the heat exchange medium in the return pipe to flow to the first connecting pipe.

[0026] In some embodiments, the heat exchange piping further includes:

[0027] A first flow control valve is installed on the second connecting pipe and is close to the inlet of the refrigeration module. The first flow control valve is configured to regulate the flow rate of the heat exchange medium flowing into the refrigeration module.

[0028] In some embodiments, the heat exchange piping further includes:

[0029] The third temperature sensor, which is connected in communication with the control module, is located on the second connecting pipe and close to the outlet of the heat dissipation module. It is configured to detect the temperature of the heat exchange medium at the outlet of the heat dissipation module and transmit the detection result to the control module.

[0030] The control module is configured to control the opening degree of the return liquid control valve based on the detection results of the first temperature sensor and the third temperature sensor.

[0031] In some embodiments, the heat exchange piping further includes:

[0032] The first flow sensor, which is communicatively connected to the control module, is installed on the first connecting pipe and close to the inlet of the heat dissipation module. It is configured to detect the flow rate of the heat exchange medium at the inlet of the heat dissipation module and transmit the detection result to the control module.

[0033] The second flow sensor, which is communicatively connected to the control module, is installed on the second connecting pipe and close to the outlet of the heat dissipation module. It is configured to detect the flow rate of the heat exchange medium at the outlet of the heat dissipation module and transmit the detection result to the control module.

[0034] The return liquid line also includes a third flow sensor, which is communicatively connected to the control module. It is installed on the return liquid line and located on the side of the return liquid control valve away from the second connecting pipe. The third flow sensor is configured to detect the flow rate of the heat exchange medium flowing out through the return liquid control valve and transmit the detection result to the control module.

[0035] The control module is configured to control the opening degree of the return liquid control valve based on the detection results of the first temperature sensor, the third temperature sensor, the first flow sensor, the second flow sensor, and the third flow sensor.

[0036] In some embodiments, the heat exchange piping further includes:

[0037] The second flow control valve, which is connected in communication with the control module, is located on the first connecting pipe and close to the outlet of the refrigeration module. It is configured to regulate the flow rate of the heat exchange medium from the refrigeration module to the heat dissipation module.

[0038] The fourth flow sensor, which is communicatively connected to the control module, is installed on the first connecting pipe and located on the side of the first flow control valve away from the refrigeration module. It is configured to detect the flow rate of the heat exchange medium flowing out of the first flow control valve and transmit the detection result to the control module.

[0039] The control module is configured to control the opening degree of the second flow control valve based on the detection results of the third temperature sensor, the third flow sensor, and the fourth flow sensor.

[0040] In some embodiments, the heat exchange piping further includes:

[0041] The fourth temperature sensor, which is connected in communication with the control module, is located on the first connecting pipe and close to the outlet of the refrigeration module. It is configured to detect the temperature of the heat exchange medium at the outlet of the refrigeration module and transmit the detection result to the control module.

[0042] The control module is configured to control the refrigeration module to adjust the temperature of the outflowing heat exchange medium based on the dew point temperature, the detection results of the third temperature sensor and the fourth temperature sensor.

[0043] In some embodiments, the heat exchange system further includes:

[0044] The liquid collection circuit includes a liquid storage device and a liquid collection pipeline. The liquid storage device has a receiving cavity configured to store the heat exchange medium, and the liquid collection pipeline is configured to connect the receiving cavity to the heat dissipation module and the refrigeration module.

[0045] In some embodiments, the liquid collection line includes:

[0046] The first liquid collection pipe connects the liquid storage device and the first connecting pipe;

[0047] The second liquid collection pipe connects to the liquid storage device and the second connecting pipe.

[0048] In some embodiments, the liquid collection line further includes:

[0049] The first control valve is installed on the first liquid collection pipe and is communicatively connected to the control module. It is configured to open or close under the control of the control module so that the receiving cavity is connected or disconnected from the first connecting pipe.

[0050] The second control valve is located on the second liquid collection pipe and is communicatively connected to the control module. It is configured to open or close under the control of the control module so that the receiving cavity is connected or disconnected from the second connecting pipe.

[0051] In some embodiments, the heat exchange system further includes:

[0052] The leakage detection module is installed on the heat dissipation module and communicates with the control module. It is configured to detect whether there is leakage in the heat dissipation module and transmit the detection result to the control module.

[0053] The control module is configured to close the first flow control valve, the second flow control valve, and the power pump when the detection result of the leakage detection module indicates that there is leakage in the heat dissipation module, and to open the first control valve and the second control valve.

[0054] In some embodiments, the heat exchange system further includes:

[0055] The pressure control mechanism is installed on the liquid storage device, communicates with the receiving cavity, and is connected to the control module. It is configured to regulate the pressure inside the receiving cavity.

[0056] The control module is configured to control the pressure control mechanism to make the pressure in the containment cavity less than the pressure in the first connecting pipe and the second connecting pipe when the detection result of the leakage detection module indicates that there is leakage in the heat dissipation module.

[0057] In some embodiments, the heat exchange system further includes:

[0058] A pressure sensor, located inside the containment cavity, is communicatively connected to the control module and is configured to detect the pressure inside the containment cavity and transmit the detection result to the control module.

[0059] The control module is configured to determine whether the pressure difference between the pressure inside the containment cavity and the pressure inside the first connecting pipe, the second connecting pipe and the heat dissipation module meets the second preset condition when the detection result of the leakage detection module indicates that there is no leakage in the heat dissipation module, based on the detection result of the pressure sensor. If the pressure difference does not meet the second preset condition, the pressure control mechanism is activated so that when the first control valve and the second control valve are opened, the heat exchange medium inside the first connecting pipe, the second connecting pipe and the heat dissipation module flows into the containment cavity under the action of the pressure difference.

[0060] According to a second aspect of this application, a vehicle is provided, including the heat exchange system described above.

[0061] In the heat exchange system of this application embodiment, by providing return liquid pipelines at the outlets of the refrigeration module and the heat dissipation module, and selectively connecting these return liquid pipelines to the outlets of the refrigeration module and the heat dissipation module, the temperature of the heat exchange medium flowing out of the heat dissipation module (which has a higher temperature) can be used to regulate the temperature of the heat exchange medium flowing out of the refrigeration module (which has a lower temperature). This ensures that the temperature of the heat exchange medium flowing into the heat dissipation module is suitable, preventing condensation from forming on the heat dissipation module and the object being cooled. This allows the heat exchange system provided in this application to be suitable for environments with various temperatures and humidity levels, improving its environmental adaptability and applicability. Furthermore, compared to related technologies that rely on external equipment (such as dehumidifiers to reduce ambient humidity) to reduce condensation, the heat exchange system provided in this application reduces the possibility of condensation solely through its own structure. Therefore, the heat exchange system provided in this application also features high ease of use and low operating costs.

[0062] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0064] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0065] Figure 1 This is a structural block diagram of a heat exchange system provided in an embodiment of this application.

[0066] Explanation of reference numerals in the attached figures:

[0067] 100. Heat exchange circuit;

[0068] 10. Refrigeration module;

[0069] 20. Heat dissipation module; 21. Second temperature sensor; 22. Humidity sensor; 23. Leakage detection module;

[0070] 30. Heat exchange piping; 31. First connecting pipe; 311. First temperature sensor; 312. First flow sensor; 313. Second flow control valve; 314. Fourth flow sensor; 315. Fourth temperature sensor; 32. Second connecting pipe; 321. First flow control valve; 322. Third temperature sensor; 323. Second flow sensor;

[0071] 40. Return liquid line; 41. Return liquid pipe; 42. Return liquid control valve; 43. Power pump; 44. Third flow sensor;

[0072] 50. Control module;

[0073] 60. Liquid collection circuit; 61. Liquid storage device; 611. Receiving cavity; 612. Pressure sensor; 62. Liquid collection pipeline; 621. First liquid collection pipe; 622. First control valve; 623. Second liquid collection pipe; 624. Second control valve; 63. Pressure control mechanism. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0075] In related technologies, when the surface temperature of an object is lower than the dew point temperature of the surrounding air, water vapor in the air will condense into liquid water. The liquid water formed on the object's surface can be divided into condensation and condensate. Condensation refers to water vapor directly condensing into tiny droplets (dew) on the object's surface, while condensate refers to the continuous liquid water formed after condensation accumulates. Therefore, when using a heat exchange system to cool an object, condensation or even condensate may form on the object's outer surface. Both condensation and condensate can lead to adverse consequences such as surface corrosion, bacterial growth, and even structural leaks.

[0076] In view of the above problems, this application provides a heat exchange system to at least partially solve the above technical problems.

[0077] According to a first aspect of this application, a heat exchange system is provided; please refer to... Figure 1 , Figure 1 This is a structural block diagram of a heat exchange system provided in an embodiment of this application. The heat exchange system provided in this application includes: a heat exchange circuit 100, including a refrigeration module 10, a heat dissipation module 20, and a heat exchange pipeline 30 connecting the refrigeration module 10 and the heat dissipation module 20 end to end; a heat exchange medium flowing through the heat exchange circuit 100; and a return pipeline 40 configured to selectively connect the outlet of the heat dissipation module 20 and the outlet of the refrigeration module 10.

[0078] In a heat exchange system, the heat dissipation module 20 is used to dissipate heat from objects that need to be cooled. Therefore, the temperature of the heat exchange medium flowing out of the heat dissipation module 20 is usually higher than the temperature of the heat exchange medium flowing into the heat dissipation module 20. Therefore, in this embodiment, by providing a return liquid pipeline 40 at the outlet of the cooling module 10 and the outlet of the heat dissipation module 20, and selectively connecting the return liquid pipeline 40 to the outlet of the cooling module 10 and the outlet of the heat dissipation module 20, the temperature of the lower-temperature heat exchange medium flowing out of the outlet of the cooling module 10 can be adjusted using the higher-temperature heat exchange medium flowing out of the outlet of the heat dissipation module 20. This ensures that the temperature of the heat exchange medium flowing into the heat dissipation module 20 is suitable, preventing condensation from forming on the heat dissipation module 20 and the object being cooled. This allows the heat exchange system provided in this application to be suitable for environments with various temperatures and humidity levels, improving the environmental adaptability and applicability of the heat exchange system provided in this application.

[0079] Furthermore, compared to methods in related technologies that rely on external equipment (such as dehumidifiers to reduce ambient humidity) to reduce condensation, the heat exchange system provided in this application can reduce the possibility of condensation by relying solely on its own structure. Therefore, the heat exchange system provided in this application also features high ease of use and low operating costs.

[0080] It should be noted that the "high temperature heat exchange medium" and "low temperature heat exchange medium" in the embodiments of this application are only the result of comparing the two, and do not represent that their temperatures are the high temperature and low temperature defined in daily life. For example, the temperature of the high temperature heat exchange medium is 5°C, and the temperature of the low temperature heat exchange medium is 3°C.

[0081] In this embodiment, the refrigeration module 10 can be an air conditioner or a heat pump, and the temperature of the heat exchange medium at its outlet can be constant or variable.

[0082] In this embodiment, the heat exchange medium can be water or other fluids with heat exchange capabilities.

[0083] Please continue reading. Figure 1 In some embodiments of this application, the return pipeline 40 includes: a return pipe 41, with both ends connected to the outlet of the heat dissipation module 20 and the outlet of the cooling module 10, respectively; and a return control valve 42, disposed on the return pipe 41, having an open state. When the return control valve 42 is configured to be in the open state, it connects the outlet of the heat dissipation module 20 and the outlet of the cooling module 10, so that the heat exchange medium flows from the outlet of the heat dissipation module 20 to the outlet of the cooling module 10.

[0084] The purpose of setting up a return liquid pipeline 40 in the heat exchange system in this application is to avoid or reduce the generation of condensation. Therefore, the return liquid pipeline 40 is not completely open, but selectively connects the outlet of the heat dissipation module 20 and the outlet of the cooling module 10. In this embodiment, by making the return liquid pipeline 40 include a return liquid pipe 41 and a return liquid control valve 42 provided on the return liquid pipe 41, the return liquid control valve 42 can be used to control the connection and disconnection between the outlet of the cooling module 10 and the outlet of the heat dissipation module 20. This facilitates the connection between the outlet of the heat dissipation module 20 and the outlet of the cooling module 10 when condensation may occur at the heat dissipation module 20 and the object being cooled, thus avoiding the situation where the temperature of the heat exchange medium flowing into the heat dissipation module 20 is increased when there is no risk of condensation, resulting in poor heat dissipation effect, and improving the reliability of the heat exchange system provided in this application.

[0085] In some embodiments of this application, the return control valve 42 is a one-way valve, and its flow direction is from the outlet of the heat dissipation module 20 to the outlet of the cooling module 10.

[0086] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange system further includes: a first temperature sensor 311, disposed at the inlet of the heat dissipation module 20, configured to detect the temperature of the heat exchange medium at the inlet of the heat dissipation module 20; and a return control valve 42 configured to open when the detection result of the first temperature sensor 311 does not meet a first preset condition.

[0087] This approach allows for precise detection of the temperature of the heat exchange medium at the inlet of the heat dissipation module 20 using the first temperature sensor 311, and precise control of the opening or closing of the return liquid control valve 42 based on the detection result of the first temperature sensor 311. The return liquid control valve 42 is opened only when the detection result of the first temperature sensor 311 does not meet the first preset condition, which helps to improve the reliability of the heat exchange system provided in this application.

[0088] In some embodiments of this application, the first preset condition is that the detection result of the first temperature sensor 311 is higher than the dew point temperature of the environment where the heat dissipation module 20 is located, or the detection result of the first temperature sensor 311 is higher than the sum of the dew point temperature of the environment where the heat dissipation module 20 is located and the safety margin.

[0089] Condensation may occur when the temperature of the heat exchange medium within the heat dissipation module 20 is equal to or lower than the dew point temperature of the environment in which the heat dissipation module 20 is located. Therefore, in this embodiment, the return control valve 42 is closed only when the detection result of the first temperature sensor 311 is higher than the dew point temperature of the environment in which the heat dissipation module 20 is located. Simultaneously, this embodiment sets a safety margin based on the dew point temperature. When determining whether there is a risk of condensation, the dew point temperature and the safety margin are combined to avoid localized condensation due to uneven temperature in the environment, further improving the reliability of the heat exchange system provided in this application. The specific value of this safety margin can be determined according to the actual environment; for example, the safety margin is 3°C.

[0090] The temperature sensor in the embodiments of this application can be either an internal type or an external type.

[0091] The control module 50 in this embodiment stores a set safety margin.

[0092] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange system further includes: a second temperature sensor 21, disposed on the heat dissipation module 20, configured to detect the temperature of the environment in which the heat dissipation module 20 is located; a humidity sensor 22, disposed on the heat dissipation module 20, configured to detect the humidity of the environment in which the heat dissipation module 20 is located; and a return control valve 42 configured to open when the dew point temperature of the environment in which the heat dissipation module 20 is located, determined according to the detection results of the second temperature sensor 21 and the humidity sensor 22, is higher than or equal to the detection result of the first temperature sensor 311, or to close when the dew point temperature of the environment in which the heat dissipation module 20 is located, determined according to the detection results of the second temperature sensor 21 and the humidity sensor 22, is lower than the detection result of the first temperature sensor 311.

[0093] The return liquid pipeline 40 of the heat exchange system provided in this application connects the outlet of the heat dissipation module 20 to the outlet of the refrigeration module 10 when there is a risk of condensation at the heat dissipation module 20 and the object being cooled. Whether there is a risk of condensation needs to be determined based on the dew point temperature of the environment where the heat dissipation module 20 is located. Therefore, in this embodiment, a second temperature sensor 21 and a humidity sensor 22 are provided on the heat dissipation module 20 so that the temperature and humidity of the environment where the heat dissipation module 20 is located can be accurately detected by the two sensors. Based on the detected ambient temperature and humidity, the dew point temperature of the environment where the heat dissipation module 20 is located can be accurately calculated, thereby improving the control accuracy of the return liquid control valve 42 based on the dew point temperature, and ultimately improving the reliability of the heat exchange system provided in this application.

[0094] The humidity sensor 22 in this embodiment can be a wet-bulb hygrometer or a chemical hygrometer.

[0095] The control module 50 in this embodiment stores enthalpy-humidity chart data, which facilitates the determination of the dew point temperature of the environment in which the heat dissipation module 20 is located based on the detection results of the second temperature sensor 21 and humidity sensor 22 and the enthalpy-humidity chart data.

[0096] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange system further includes a control module 50, which is communicatively connected to a first temperature sensor 311, a second temperature sensor 21, a humidity sensor 22, and a return liquid control valve 42. The control module is configured to determine the dew point temperature of the environment in which the heat dissipation module 20 is located based on the detection results of the second temperature sensor 21 and the humidity sensor 22, and to control the return liquid control valve 42 to open or close based on the dew point temperature and the detection results of the first temperature sensor 311.

[0097] This approach allows the control module 50 to precisely control the opening and closing of the return liquid control valve 42, which helps improve the reliability of the heat exchange system provided in this application compared to manual control methods.

[0098] Please continue reading. Figure 1In some embodiments of this application, the heat exchange pipeline 30 includes: a first connecting pipe 31, connecting the outlet of the cooling module 10 and the inlet of the heat dissipation module 20, with a first temperature sensor 311 disposed on the first connecting pipe 31; a second connecting pipe 32, connecting the outlet of the heat dissipation module 20 and the inlet of the cooling module 10; and a return pipe 41, with both ends connected to the first connecting pipe 31 and the second connecting pipe 32 respectively, so that the outlet of the heat dissipation module 20 and the outlet of the cooling module 10 are connected when the return control valve 42 is opened. Thus, the return pipe 41 can be used to connect the outlet of the heat dissipation module 20 and the outlet of the cooling module 10. Meanwhile, the principle of adjusting the temperature of the heat exchange medium flowing into the heat dissipation module 20 using the return pipe 41 is to use the heat exchange medium with a higher temperature flowing out of the outlet of the heat dissipation module 20 and the heat exchange medium with a lower temperature flowing out of the outlet of the cooling module 10 to obtain a heat exchange medium with a temperature between the two. However, it takes a certain amount of time for the two heat exchange media with different temperatures to fully fuse. Based on this, this application connects the return pipe 41 between the first connecting pipe 31 and the second connecting pipe 32, so that by adjusting the connection position of the return pipe 41 and the first connecting pipe 31, the temperature uniformity of the heat exchange medium flowing into the heat dissipation module 20 can be controlled, which can reduce the possibility of uneven temperature of the heat exchange medium flowing into the heat dissipation module 20 and help improve the heat exchange effect of the heat exchange system provided by this application.

[0099] Please continue reading. Figure 1 In some embodiments of this application, the return liquid pipeline 40 further includes: a power pump 43, which is disposed on the return liquid pipeline 41, is communicatively connected to the control module 50, and is configured to drive the heat exchange medium in the return liquid pipeline 41 to flow to the first connecting pipe 31.

[0100] In some cases, the heat exchange medium flowing out of the outlet of the heat dissipation module 20 may not flow into the return pipe 41, or the heat exchange medium flowing into the return pipe 41 may have poor flowability. For example, in a direction perpendicular to the horizontal plane, the first connecting pipe 31 and the second connecting pipe 32 are spaced apart, and the distance between the first connecting pipe 31 and the horizontal plane is greater than the distance between the second connecting pipe 32 and the horizontal plane. In this case, the temperature regulation effect of the heat exchange medium flowing into the heat dissipation module 20 does not meet expectations. Therefore, in this embodiment, by providing a power pump 43 on the return pipe 41, the heat exchange medium flowing into the heat dissipation module 20 can achieve the desired temperature regulation. The power pump 43 can be used to ensure that the heat exchange medium flowing out of the outlet of the heat dissipation module 20 can flow into the first connecting pipe 31 through the return pipe 41. The power pump 43 can also control the flow rate of the heat exchange medium in the return pipe 41 to ensure the stability of the flow rate of the heat exchange medium flowing into the first connecting pipe 31 from the return pipe 41. This ensures the uniformity of the fusion of the heat exchange medium flowing into the first connecting pipe 31 from the return pipe 41 with the heat exchange medium in the first connecting pipe 31, as well as the temperature stability of the fused heat exchange medium, ultimately ensuring the heat exchange effect of the heat exchange system provided in this application.

[0101] In this embodiment, the power pump 43 can change its power within the head range, and its input power is controlled according to the detection results of the temperature sensor and the flow sensor.

[0102] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange pipeline 30 further includes: a first flow control valve 321, which is disposed on the second connecting pipe 32 and close to the inlet of the refrigeration module 10. The first flow control valve 321 is configured to regulate the flow rate of the heat exchange medium flowing into the refrigeration module 10.

[0103] In this embodiment, by providing a first flow control valve 321 at the inlet of the refrigeration module 10, the flow rate of the heat exchange medium flowing into the return pipe 41 can be controlled in conjunction with the return control valve 42 and the first flow control valve 321. This improves the accuracy of temperature control of the heat exchange medium flowing into the heat dissipation module 20, thereby enhancing the reliability of the heat exchange system provided in this application. For example, by reducing the flow rate of the heat exchange medium flowing into the refrigeration module 10 using the first flow control valve 321, the flow rate of the heat exchange medium flowing into the return pipe 41 from the second connecting pipe 32 will increase.

[0104] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange pipeline 30 further includes: a third temperature sensor 322, which is communicatively connected to the control module 50, is disposed on the second connecting pipe 32 and close to the outlet of the heat dissipation module 20, and is configured to detect the temperature of the heat exchange medium at the outlet of the heat dissipation module 20 and transmit the detection result to the control module 50; the control module 50 is configured to control the opening degree of the return liquid control valve 42 according to the detection results of the first temperature sensor 311 and the third temperature sensor 322.

[0105] This application utilizes the return pipe 40 to regulate the temperature of the heat exchange medium flowing into the heat dissipation module 20 to prevent condensation from forming at the heat dissipation module 20 and the object being cooled. However, the basic function of the heat dissipation module 20 is to dissipate heat from the object being cooled. Therefore, while preventing condensation, the heat dissipation function of the heat dissipation module 20 should also be guaranteed. The temperature of the heat exchange medium flowing out of the outlet of the heat dissipation module 20 is an important parameter for observing the heat exchange effect of the heat dissipation module 20. Therefore, in this embodiment, a third temperature sensor 322 is installed on the second connecting pipe 32 near the outlet of the heat dissipation module 20, so that the temperature of the heat exchange medium flowing out of the outlet of the heat dissipation module 20 can be detected by the third temperature sensor 322, so as to determine whether the heat dissipation module 20 meets the requirements for dissipating heat from the object being cooled. If the detection result of the third temperature sensor 322 indicates that the heat dissipation module 20 cannot meet the heat dissipation requirements, the opening of the return liquid control valve 42 is reduced according to the detection results of the first temperature sensor 311 and the third temperature sensor 322. This reduces the amount of the high-temperature heat exchange medium flowing into the first connecting pipe 31 through the return liquid pipe 41, thereby reducing the temperature of the heat exchange medium flowing into the heat dissipation module 20 and enabling the heat dissipation module 20 to meet the heat dissipation requirements. This helps to improve the reliability of the heat exchange system provided in this application.

[0106] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange pipeline 30 further includes: a first flow sensor 312, communicatively connected to the control module 50, disposed on the first connecting pipe 31 and near the inlet of the heat dissipation module 20, configured to detect the flow rate of the heat exchange medium at the inlet of the heat dissipation module 20 and transmit the detection result to the control module 50; a second flow sensor 323, communicatively connected to the control module 50, disposed on the second connecting pipe 32 and near the outlet of the heat dissipation module 20, configured to detect the flow rate of the heat exchange medium at the outlet of the heat dissipation module 20 and transmit the detection result to the control module 50; and a return pipeline 40. It also includes a third flow sensor 44, which is communicatively connected to the control module 50. The third flow sensor 44 is installed on the return pipe 41 and located on the side of the return control valve 42 away from the second connecting pipe 32. The third flow sensor 44 is configured to detect the flow rate of the heat exchange medium flowing out through the return control valve 42 and transmit the detection result to the control module 50. The control module 50 is configured to control the opening degree of the return control valve 42 based on the detection results of the first temperature sensor 311, the third temperature sensor 322, the first flow sensor 312, the second flow sensor 323 and the third flow sensor 44.

[0107] This approach allows for the precise calculation of the opening adjustment of the return liquid control valve 42 using the detection results of the first temperature sensor 311, the third temperature sensor 322, the first flow sensor 312, the second flow sensor 323, and the third flow sensor 44. This helps to improve the accuracy of temperature control of the heat exchange medium flowing into the heat dissipation module 20, thereby improving the reliability of the heat exchange system provided in this application.

[0108] The flow sensor in the embodiments of this application can be a vortex flow meter, a turbine flow meter, or other flow meters.

[0109] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange pipeline 30 further includes: a second flow control valve 313, which is communicatively connected to the control module 50, disposed on the first connecting pipe 31 and close to the outlet of the refrigeration module 10, and configured to regulate the flow rate of the heat exchange medium from the refrigeration module 10 to the heat dissipation module 20; a fourth flow sensor 314, which is communicatively connected to the control module 50, disposed on the first connecting pipe 31 and located on the side of the first flow control valve 321 away from the refrigeration module 10, and configured to detect the flow rate of the heat exchange medium flowing out of the first flow control valve 321 and transmit the detection result to the control module 50; the control module 50 is configured to control the opening degree of the second flow control valve 313 according to the detection results of the third temperature sensor 322, the third flow sensor 44 and the fourth flow sensor 314.

[0110] The heat exchange effect of the heat dissipation module 20 is not only affected by the return liquid pipeline 40, but also closely related to the environment in which the heat dissipation module 20 is located. When the return liquid pipeline 40 is not connected to the outlet of the heat dissipation module 20 and the outlet of the cooling module 10, the heat dissipation effect of the heat dissipation module 20 may not meet the heat dissipation requirements. Therefore, in this embodiment, by setting a second flow control valve 313 and a fourth flow sensor 314 at the outlet of the cooling module 10, the flow rate of the heat exchange medium flowing out of the cooling module 10 is detected. When the third temperature sensor 322 detects that the temperature of the heat exchange medium flowing out of the outlet of the heat dissipation module 20 indicates that the heat dissipation module 20 does not meet the heat dissipation requirements, the opening of the second flow control valve 313 can be increased to increase the flow rate of the heat exchange medium flowing out of the outlet of the cooling module 10, thereby adjusting the heat dissipation effect of the heat dissipation module 20 and improving the reliability of the heat exchange system provided in this application. A fourth flow sensor 314 is installed at the outlet of the refrigeration module 10. By combining the detection results of the fourth flow sensor 314 and the third flow sensor 44, the adjustment accuracy of the opening of the second flow control valve 313 can be improved, thereby further improving the reliability of the heat exchange system provided in this application.

[0111] Please continue reading. Figure 1In some embodiments of this application, the heat exchange pipeline 30 further includes: a fourth temperature sensor 315, which is communicatively connected to the control module 50, is disposed on the first connecting pipe 31 and close to the outlet of the refrigeration module 10, and is configured to detect the temperature of the heat exchange medium at the outlet of the refrigeration module 10 and transmit the detection result to the control module 50; the control module 50 is configured to control the refrigeration module 10 to adjust the temperature of the outflowing heat exchange medium according to the dew point temperature, the detection results of the third temperature sensor 322 and the fourth temperature sensor 315.

[0112] In this embodiment, a fourth temperature sensor 315 is installed on the first connecting pipe 31 near the outlet of the cooling module 10. This allows the temperature of the heat exchange medium at the outlet of the cooling module 10 to be detected. When the temperature of the heat exchange medium flowing out of the outlet of the heat dissipation module 20 indicates that the heat dissipation module 20 does not meet the heat dissipation requirements, the cooling module 10 is controlled to adjust the temperature of the heat exchange medium flowing out based on the detection result of the fourth temperature sensor 315. This adjusts the temperature of the heat exchange medium flowing into the heat dissipation module 20, ensuring that the heat dissipation module 20 meets the heat dissipation requirements and improving the reliability of the heat exchange system provided in this application.

[0113] The control method for the heat exchange system provided in this application includes:

[0114] Obtain the detection result of the first temperature sensor 311;

[0115] Obtain the detection results from the second temperature sensor 21 and humidity sensor 22;

[0116] The dew point temperature of the environment where the heat dissipation module 20 is located is determined based on the detection results of the second temperature sensor 21 and humidity sensor 22.

[0117] Obtain a safety margin;

[0118] Compare the detection results of the first temperature sensor 311 with the sum of the dew point temperature and the safety margin;

[0119] In response to the detection result of the first temperature sensor 311 being higher than or equal to the sum of the dew point temperature and the safety margin, the detection results of the first flow sensor 312, the second flow sensor 323, and the third temperature sensor 322 are acquired.

[0120] The opening degree of the return liquid control valve 42 is adjusted according to the detection results of the first flow sensor 312, the second flow sensor 323, the first temperature sensor 311, and the third temperature sensor 322.

[0121] In response to the detection result of the first temperature sensor 311 being lower than the sum of the dew point temperature and the safety margin, the detection result of the third temperature sensor 322 is acquired.

[0122] Obtain the highest inflow temperature of the heat dissipation module 20 that meets the heat dissipation requirements;

[0123] In response to the detection result of the third temperature sensor 322 being higher than the maximum inflow temperature, the detection result of the fourth flow sensor 314 and the opening degree of the return control valve 42 are acquired.

[0124] The opening degree of the second flow control valve 313 is adjusted according to the detection results of the third temperature sensor 322 and the fourth flow sensor 314.

[0125] In response to the return control valve 42 being in the open state, the opening degree of the return control valve 42 is adjusted according to the detection results of the second flow sensor 323 and the third temperature sensor 322.

[0126] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange system further includes: a liquid collection circuit 60, including a liquid storage device 61 and a liquid collection pipeline 62. The liquid storage device 61 has a receiving cavity 611, which is configured to store the heat exchange medium. The liquid collection pipeline 62 is configured to connect the receiving cavity 611 to the heat dissipation module 20 and the cooling module 10.

[0127] This approach allows the heat exchange medium to be stored in the liquid storage device 61, preventing leakage of the heat exchange medium when replacing components of the heat exchange system or repairing the heat exchange system, thereby improving the maintenance convenience of the heat exchange system provided in this application and reducing the maintenance cost of the heat exchange system provided in this application.

[0128] In this embodiment, the volume of the receiving cavity 611 of the liquid storage device 61 is greater than the volume of the internal pipeline of the heat dissipation module 20.

[0129] Please continue reading. Figure 1 In some embodiments of this application, the liquid collection pipe 62 includes: a first liquid collection pipe 621, connecting the liquid storage device 61 and the first connecting pipe 31; and a second liquid collection pipe 623, connecting the liquid storage device 61 and the second connecting pipe 32. This allows the heat exchange medium in the heat dissipation module 20 and the cooling module 10 to flow to the liquid storage device 61 via both the first liquid collection pipe 621 and the second liquid collection pipe 623. This helps reduce the time required to drain the heat exchange medium from the heat dissipation module 20, the cooling module 10, the first connecting pipe 31, and the second connecting pipe 32, thereby improving operational efficiency. Furthermore, the two liquid collection pipes can serve as backups for each other; if one fails or cannot function properly, the other can still ensure the flow of heat exchange medium to the liquid storage device 61, improving the reliability of the heat exchange system provided in this application.

[0130] Please continue reading. Figure 1In some embodiments of this application, the liquid collection pipe 62 further includes: a first control valve 622, disposed on the first liquid collection pipe 621 and communicatively connected to the control module 50, configured to open or close under the control of the control module 50, so as to connect or disconnect the receiving cavity 611 from the first connecting pipe 31; and a second control valve 624, disposed on the second liquid collection pipe 623 and communicatively connected to the control module 50, configured to open or close under the control of the control module 50, so as to connect or disconnect the receiving cavity 611 from the second connecting pipe 32. This ensures that the first control valve 622 and the second control valve 624 are opened only when the liquid storage device 61 is needed to connect the liquid storage device 61 to the first connecting pipe 31 and the second connecting pipe 32, preventing the liquid storage device 61 from interfering with the normal operation of the heat dissipation module 20 and the cooling module 10, and improving the reliability of the heat exchange system provided in this application.

[0131] Please continue reading. Figure 1 In some embodiments of this application, the heat exchange system further includes: a leakage detection module 23, disposed on the heat dissipation module 20, communicatively connected to the control module 50, configured to detect whether the heat dissipation module 20 has leakage, and transmit the detection result to the control module 50; the control module 50 is configured to control the first flow control valve 321, the second flow control valve 313 and the power pump 43 to close, and control the first control valve 622 and the second control valve 624 to open when the detection result of the leakage detection module 23 indicates that the heat dissipation module 20 has leakage.

[0132] In this embodiment, a leakage detection module 23 is provided on the heat dissipation module 20, enabling timely detection of leaks in the heat dissipation module 20, reducing heat exchange medium leakage, and improving the reliability of the heat exchange system provided in this application. The detection result of the leakage detection module 23 is transmitted to the control module 50, allowing the control module 50 to promptly close the first flow control valve 321, the second flow control valve 313, and the power pump 43 when leakage occurs in the heat dissipation module 20, thereby stopping the flow of the heat exchange medium in the heat exchange system and mitigating leakage. Furthermore, the control module 50 opens the first control valve 622 and the second control valve 624, connecting the liquid storage device 61 with the first connecting pipe 31 and the second connecting pipe 32. This allows the heat exchange medium in the heat exchange system to flow to the liquid storage device 61 via the first liquid collecting pipe 621 and the second liquid collecting pipe 623, reducing heat exchange medium leakage and improving the reliability of the heat exchange system provided in this application. Meanwhile, as the heat exchange medium flows into the liquid storage device 61, the amount of heat exchange medium leaking from the leakage point is reduced, and the heat exchange medium in the liquid storage device 61 can be reused when maintaining the heat exchange system, thus reducing the maintenance cost.

[0133] Please continue reading. Figure 1In some embodiments of this application, the heat exchange system further includes: a pressure control mechanism 63, which is disposed on the liquid storage device 61, communicates with the receiving cavity 611, and is communicatively connected to the control module 50, and is configured to adjust the pressure in the receiving cavity 611; the control module 50 is configured to control the pressure control mechanism 63 to make the pressure in the receiving cavity 611 less than the pressure in the first connecting pipe 31 and the second connecting pipe 32 when the detection result of the leakage detection module 23 indicates that there is leakage in the heat dissipation module 20.

[0134] In this embodiment, by providing a pressure control mechanism 63 connected to the receiving cavity 611 of the liquid storage device 61, the pressure inside the receiving cavity 611 can be adjusted using the pressure control mechanism 63. This ensures that when the leakage detection module 23 detects leakage in the heat dissipation module 20, the pressure in the receiving cavity 611 is lower than the pressure inside the first connecting pipe 31 and the second connecting pipe 32. Thus, under the influence of the pressure difference, the heat exchange medium in the first connecting pipe 31, the second connecting pipe 32, and the heat dissipation module 20 connected to the first connecting pipe 31 and the second connecting pipe 32 will flow into the receiving cavity 611, further reducing the amount of heat exchange medium leaking from the leakage point, improving the reliability of the heat exchange system provided in this application, and reducing the maintenance cost of the heat exchange system provided in this application.

[0135] Furthermore, when the pressure control mechanism 63 adjusts the pressure in the receiving cavity 611, the gas in the first connecting pipe 31, the second connecting pipe 32, and the heat dissipation module 20 will flow under the action of the pressure difference. The flowing gas will be able to dissipate heat to the object being cooled, so that even if the heat exchange system provided by this application fails, it can still dissipate heat to the object being cooled, thereby improving the reliability of the heat exchange system provided by this application.

[0136] In some embodiments of this application, the pressure inside the accommodating cavity 611 is lower than atmospheric pressure, and the pressure difference with atmospheric pressure is greater than the flow channel friction in the first connecting pipe 31, the second connecting pipe 32, and the heat dissipation module 20.

[0137] The pressure control mechanism 63 in this embodiment can be a fan.

[0138] Please continue reading. Figure 1In some embodiments of this application, the heat exchange system further includes: a pressure sensor 612, disposed in the receiving cavity 611, communicatively connected to the control module 50, configured to detect the pressure in the receiving cavity 611 and transmit the detection result to the control module 50; the control module 50 is configured to determine whether the pressure difference between the pressure in the receiving cavity 611 and the pressure in the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 meets a second preset condition when the detection result of the leakage detection module 23 indicates that there is no leakage in the heat dissipation module 20, and the pressure difference between the pressure in the receiving cavity 611 and the pressure in the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 meets the second preset condition, and to activate the pressure control mechanism 63 when the pressure difference does not meet the second preset condition, so that when the first control valve 622 and the second control valve 624 are opened, the heat exchange medium in the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 flows to the receiving cavity 611 under the action of the pressure difference.

[0139] In this embodiment, a pressure sensor 612 is installed in the receiving cavity 611 of the liquid storage device 61 to detect the pressure within the receiving cavity 611. This allows the control module 50 to precisely control the pressure control mechanism 63, improving the reliability of the heat exchange system provided in this application. Simultaneously, when there is no leakage in the heat dissipation module 20, the pressure sensor 612 and the pressure control mechanism 63 can ensure that the pressure difference between the receiving cavity 611 and the pressures in the first connecting pipe 31, the second connecting pipe 32, and the heat dissipation module 20 meets a second preset condition. This allows the first control valve 622 and the second control valve 624 to open, causing the heat exchange medium in the first connecting pipe 31, the second connecting pipe 32, and the heat dissipation module 20 to flow into the receiving cavity 611 under the influence of this pressure difference. In this way, when the leakage detection module 23 detects leakage in the heat dissipation module 20, the time required for the pressure difference between the pressure in the receiving cavity 611 of the pressure control mechanism 63 and the pressure in the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 to meet the second preset condition can be reduced. This facilitates the rapid collection of the heat exchange medium into the receiving cavity 611, reduces the leakage of the heat exchange medium, thereby improving the reliability of the heat exchange system provided in this application and reducing the maintenance cost of the heat exchange system provided in this application.

[0140] The pressure sensor 612 in this embodiment can be a strain gauge pressure sensor 612 or a semiconductor pressure sensor 612.

[0141] The control method for the heat exchange system provided in this application embodiment further includes:

[0142] Obtain the detection results from the leakage detection module 23;

[0143] In response to the detection result of the leakage detection module 23 indicating that there is leakage in the heat dissipation module 20, the first flow control valve 321, the second flow control valve 313 and the power pump 43 are controlled to close, and the first control valve 622, the second control valve 624 and the pressure control mechanism 63 are controlled to open.

[0144] In response to the detection result of the leakage detection module 23 indicating that there is no leakage in the heat dissipation module 20, the detection result of the pressure sensor 612 is obtained;

[0145] Determine whether the pressure difference between the pressure inside the accommodating cavity 611 and the pressure inside the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 meets the second preset condition.

[0146] When the pressure difference between the pressure in the receiving cavity 611 and the pressure in the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 does not meet the second preset condition, the pressure control mechanism 63 is activated.

[0147] Obtain the detection results from pressure sensor 612;

[0148] When the pressure difference between the pressure inside the receiving cavity 611 and the pressure inside the first connecting pipe 31, the second connecting pipe 32 and the heat dissipation module 20 meets the second preset condition, the pressure control mechanism 63 is closed.

[0149] According to a second aspect of this application, a vehicle is provided, including the heat exchange system described above. This vehicle possesses all the beneficial effects of the aforementioned heat exchange system, which will not be elaborated further herein.

[0150] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0151] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0152] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0153] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0154] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A heat exchange system, characterized in that, include: The heat exchange circuit includes a refrigeration module, a heat dissipation module, and a heat exchange pipeline connecting the refrigeration module and the heat dissipation module end to end; The heat exchange medium flows through the heat exchange circuit; The return line is configured to selectively connect the outlet of the heat dissipation module to the outlet of the cooling module.

2. The heat exchange system according to claim 1, characterized in that, The return pipeline includes: The return pipe is connected at both ends to the outlet of the heat dissipation module and the outlet of the cooling module, respectively. A return liquid control valve is disposed on the return liquid pipe and has an open state. When the return liquid control valve is in the open state, it connects the outlet of the heat dissipation module and the outlet of the refrigeration module, so that the heat exchange medium flows from the outlet of the heat dissipation module to the outlet of the refrigeration module.

3. The heat exchange system according to claim 2, characterized in that, The heat exchange system also includes: A first temperature sensor is disposed at the inlet of the heat dissipation module and is configured to detect the temperature of the heat exchange medium at the inlet of the heat dissipation module. The return control valve is configured to open when the detection result of the first temperature sensor does not meet a first preset condition.

4. The heat exchange system according to claim 3, characterized in that, The heat exchange system also includes: A second temperature sensor is disposed on the heat dissipation module and configured to detect the temperature of the environment in which the heat dissipation module is located; A humidity sensor is disposed on the heat dissipation module and configured to detect the humidity of the environment in which the heat dissipation module is located; The return control valve is configured to open when the dew point temperature of the environment in which the heat dissipation module is located, as determined by the detection results of the second temperature sensor and the humidity sensor, is higher than or equal to the detection result of the first temperature sensor, or to close when the dew point temperature of the environment in which the heat dissipation module is located, as determined by the detection results of the second temperature sensor and the humidity sensor, is lower than the detection result of the first temperature sensor.

5. The heat exchange system according to claim 4, characterized in that, The heat exchange system also includes: The control module is communicatively connected to the first temperature sensor, the second temperature sensor, the humidity sensor, and the return liquid control valve. It is configured to determine the dew point temperature of the environment in which the heat dissipation module is located based on the detection results of the second temperature sensor and the humidity sensor, and to control the return liquid control valve to open or close based on the dew point temperature and the detection results of the first temperature sensor.

6. The heat exchange system according to claim 5, characterized in that, The heat exchange pipeline includes: A first connecting pipe connects the outlet of the cooling module and the inlet of the heat dissipation module, and the first temperature sensor is disposed on the first connecting pipe; The second connecting pipe connects the outlet of the heat dissipation module and the inlet of the cooling module; The two ends of the return pipe are connected to the first connecting pipe and the second connecting pipe, respectively, so that the outlet of the heat dissipation module and the outlet of the cooling module are connected when the return control valve is opened.

7. The heat exchange system according to claim 6, characterized in that, The return pipeline also includes: A power pump, mounted on the return pipe and communicatively connected to the control module, is configured to drive the heat exchange medium in the return pipe to flow to the first connecting pipe.

8. The heat exchange system according to claim 7, characterized in that, The heat exchange pipeline also includes: A first flow control valve is disposed on the second connecting pipe and near the inlet of the refrigeration module. The first flow control valve is configured to regulate the flow rate of the heat exchange medium flowing into the refrigeration module.

9. The heat exchange system according to claim 8, characterized in that, The heat exchange pipeline also includes: The third temperature sensor, which is communicatively connected to the control module, is disposed on the second connecting pipe and close to the outlet of the heat dissipation module. It is configured to detect the temperature of the heat exchange medium at the outlet of the heat dissipation module and transmit the detection result to the control module. The control module is configured to control the opening degree of the return liquid control valve based on the detection results of the first temperature sensor and the third temperature sensor.

10. The heat exchange system according to claim 9, characterized in that, The heat exchange pipeline also includes: A first flow sensor, communicatively connected to the control module, is mounted on the first connecting pipe and close to the inlet of the heat dissipation module. It is configured to detect the flow rate of the heat exchange medium at the inlet of the heat dissipation module and transmit the detection result to the control module. The second flow sensor, which is communicatively connected to the control module, is disposed on the second connecting pipe and close to the outlet of the heat dissipation module. It is configured to detect the flow rate of the heat exchange medium at the outlet of the heat dissipation module and transmit the detection result to the control module. The return liquid pipeline also includes a third flow sensor, which is communicatively connected to the control module, is installed on the return liquid pipeline, and is located on the side of the return liquid control valve away from the second connecting pipe. The third flow sensor is configured to detect the flow rate of the heat exchange medium flowing out through the return liquid control valve and transmit the detection result to the control module. The control module is configured to control the opening degree of the return liquid control valve based on the detection results of the first temperature sensor, the third temperature sensor, the first flow sensor, the second flow sensor, and the third flow sensor.

11. The heat exchange system according to claim 10, characterized in that, The heat exchange pipeline also includes: The second flow control valve, which is communicatively connected to the control module, is disposed on the first connecting pipe and close to the outlet of the refrigeration module, and is configured to regulate the flow rate of the heat exchange medium from the refrigeration module to the heat dissipation module; The fourth flow sensor, which is communicatively connected to the control module, is disposed on the first connecting pipe and located on the side of the first flow control valve away from the refrigeration module. It is configured to detect the flow rate of the heat exchange medium flowing out of the first flow control valve and transmit the detection result to the control module. The control module is configured to control the opening degree of the second flow control valve based on the detection results of the third temperature sensor, the third flow sensor, and the fourth flow sensor.

12. The heat exchange system according to any one of claims 9 to 11, characterized in that, The heat exchange pipeline also includes: The fourth temperature sensor, which is communicatively connected to the control module, is disposed on the first connecting pipe and close to the outlet of the refrigeration module. It is configured to detect the temperature of the heat exchange medium at the outlet of the refrigeration module and transmit the detection result to the control module. The control module is configured to control the refrigeration module to adjust the temperature of the outflowing heat exchange medium based on the dew point temperature, the detection results of the third temperature sensor and the fourth temperature sensor.

13. The heat exchange system according to claim 12, characterized in that, The heat exchange system also includes: The liquid collection circuit includes a liquid storage device and a liquid collection pipeline. The liquid storage device has a receiving cavity configured to store the heat exchange medium. The liquid collection pipeline is configured to connect the receiving cavity to the heat dissipation module and the refrigeration module.

14. The heat exchange system according to claim 13, characterized in that, The liquid collection pipeline includes: The first liquid collection pipe connects the liquid storage device and the first connecting pipe; The second liquid collection pipe connects the liquid storage device and the second connecting pipe.

15. The heat exchange system according to claim 14, characterized in that, The liquid collection pipeline also includes: A first control valve is disposed on the first liquid collection pipe and is communicatively connected to the control module. It is configured to open or close under the control of the control module so that the receiving cavity is connected to or disconnected from the first connecting pipe. The second control valve is disposed on the second liquid collection pipe and is communicatively connected to the control module. It is configured to open or close under the control of the control module so as to connect or disconnect the receiving cavity from the second connecting pipe.

16. The heat exchange system according to claim 15, characterized in that, The heat exchange system also includes: A leakage detection module is disposed on the heat dissipation module and is communicatively connected to the control module. It is configured to detect whether there is leakage in the heat dissipation module and transmit the detection result to the control module. The control module is configured to, when the detection result of the leakage detection module indicates that the heat dissipation module has leakage, control the first flow control valve, the second flow control valve of the heat exchange pipeline and the power pump to close, and control the first control valve and the second control valve to open.

17. The heat exchange system according to claim 16, characterized in that, The heat exchange system also includes: A pressure control mechanism is disposed on the liquid storage device, communicates with the receiving cavity, and is communicatively connected to the control module, and is configured to regulate the pressure inside the receiving cavity; The control module is configured to control the pressure control mechanism to make the pressure in the receiving cavity less than the pressure in the first connecting pipe and the second connecting pipe when the detection result of the leakage detection module indicates that the heat dissipation module has leakage.

18. The heat exchange system according to claim 17, characterized in that, The heat exchange system also includes: A pressure sensor, disposed within the receiving cavity and communicatively connected to the control module, is configured to detect the pressure within the receiving cavity and transmit the detection result to the control module. The control module is configured to, when the detection result of the leakage detection module indicates that there is no leakage in the heat dissipation module, determine whether the pressure difference between the pressure in the receiving cavity and the pressure in the first connecting pipe, the second connecting pipe and the heat dissipation module meets a second preset condition based on the detection result of the pressure sensor, and activate the pressure control mechanism when the pressure difference does not meet the second preset condition, so that when the first control valve and the second control valve are opened, the heat exchange medium in the first connecting pipe, the second connecting pipe and the heat dissipation module flows to the receiving cavity under the action of the pressure difference.

19. A vehicle, characterized in that, Includes the heat exchange system as described in any one of claims 1 to 18.

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