Dehumidification method of thermal management system, electronic equipment and storage medium

Abstract

The invention provides a dehumidification method of a heat management system, electronic equipment and a storage medium, and the method comprises the steps: obtaining the dew point temperature in a container, monitoring the water outlet temperature of a liquid cooling unit, and dehumidifying a battery pack when the dew point temperature is greater than or equal to the water outlet temperature. As the outlet water temperature is the lowest temperature of the liquid cooling plate of the liquid cooling unit, the accuracy and effectiveness of the judgment result of whether the dehumidification function needs to be started or not can be improved according to the lowest temperature, whether the condensation phenomenon can be generated or not can be accurately judged according to the dew point temperature, and when the dew point temperature is larger than or equal to the outlet water temperature, the battery pack is dehumidified, and the dehumidification efficiency is improved. Therefore, accurate dehumidification of the thermal management system is achieved, dehumidification energy consumption is reduced, the anti-condensation effect of the thermal management system is improved, the performance of a battery in the thermal management system is improved, and the service life of the battery in the thermal management system is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a dehumidification method, electronic equipment and storage medium of a thermal management system. Background Art

[0002] With the rapid development of the new energy industry, the energy storage industry widely uses liquid-cooled thermal management systems to manage the thermal performance of battery packs. However, in actual applications, especially when used in high temperature and high humidity environments, the battery packs located inside the container in the thermal management system frequently experience condensation. This condensation phenomenon can cause corrosion and short circuits of metal parts inside the battery pack, affecting battery life and reducing the electrochemical performance of the battery.

[0003] In the related art, in order to prevent condensation in the battery pack, it is usually determined whether dehumidification is required based on the humidity hysteresis. However, there is a blank humidity range in the humidity hysteresis, which makes it difficult to accurately dehumidify the thermal management system, affecting the anti-condensation effect of the thermal management system. Summary of the invention

[0004] Embodiments of the present invention provide a dehumidification method, electronic device and storage medium for a thermal management system, aiming to accurately dehumidify the thermal management system, improve the anti-condensation effect of the thermal management system, and thereby improve the performance and service life of the battery in the thermal management system.

[0005] In a first aspect, an embodiment of the present invention provides a dehumidification method for a thermal management system, wherein the thermal management system includes a battery pack and a liquid cooling unit located inside a container, wherein the liquid cooling unit is used to control the temperature of the battery pack, and the method includes:

[0006] Obtaining the dew point temperature inside the container;

[0007] Monitoring the outlet water temperature of the liquid cooling unit;

[0008] When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified.

[0009] In a second aspect, an embodiment of the present invention provides a dehumidification device of a thermal management system, wherein the thermal management system includes a battery pack and a liquid cooling unit located inside a container, wherein the liquid cooling unit is used to control the temperature of the battery pack, and the dehumidification device of the thermal management system includes:

[0010] An acquisition module, used to acquire the dew point temperature inside the container;

[0011] A monitoring module, used to monitor the outlet water temperature of the liquid cooling unit;

[0012] A dehumidification module is used to dehumidify the battery pack when the dew point temperature is greater than or equal to the outlet water temperature.

[0013] In a third aspect, an embodiment of the present invention provides an electronic device, the electronic device comprising:

[0014] one or more processors;

[0015] Memory; and

[0016] One or more applications, wherein the one or more applications are stored in the memory and configured to be executed by the processor to implement the steps in the dehumidification method of the thermal management system described in any one of the first aspects.

[0017] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program is loaded by a processor to execute the steps in the dehumidification method of the thermal management system described in any one of the first aspects.

[0018] In a fifth aspect, the present application further provides a computer program product, comprising a computer program / instruction, which, when executed by a processor, is used to execute the steps of the dehumidification method of the thermal management system described in any one of the first aspects above.

[0019] Beneficial effects of the embodiments of the present invention:

[0020] In an embodiment of the present invention, by obtaining the dew point temperature inside the container and monitoring the outlet water temperature of the liquid cooling unit, the battery pack is dehumidified when the dew point temperature is greater than or equal to the outlet water temperature. Since the outlet water temperature is the lowest temperature of the liquid cooling plate of the liquid cooling unit, the accuracy and effectiveness of the judgment result of whether the dehumidification function needs to be turned on can be improved according to the lowest temperature, and the dew point temperature can accurately judge whether condensation will occur. When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified, achieving accurate dehumidification of the thermal management system, reducing dehumidification energy consumption, and improving the anti-condensation effect of the thermal management system, thereby improving the performance and service life of the battery in the thermal management system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0022] Figure 1 It is a schematic flow chart of an embodiment of a dehumidification method of a thermal management system provided by an embodiment of the present invention;

[0023] Figure 2is a schematic diagram of a preset enthalpy-humidity diagram provided in an embodiment of the present application;

[0024] Figure 3 is a schematic diagram of the working principle of the liquid cooling unit provided in the embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of the working principle of a dehumidification device including a semiconductor refrigeration sheet and a fan provided in an embodiment of the present application;

[0026] Figure 5 is a schematic diagram of a process of dehumidifying a thermal management system provided in an embodiment of the present application;

[0027] Figure 6 is a schematic structural diagram of an embodiment of a dehumidification device of a thermal management system provided in an embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of the structure of an embodiment of an electronic device provided in the embodiments of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the drawings; while "inside" and "outside" refer to the outline of the device.

[0030] At present, in order to prevent condensation of the battery pack of the container, a dehumidifier or dehumidifying air conditioner is generally configured to achieve the purpose of dehumidification. The dehumidification mode of the dehumidifier and dehumidifying air conditioner is turned on and off according to the return air humidity threshold. When the dew point temperature is higher than the temperature of the liquid cooling plate of the liquid cooling unit, condensation will occur. The conditions for condensation are not only related to humidity, but also to temperature. Among the common dehumidification modes, one is to judge by humidity; the other is to judge by temperature and humidity hysteresis. However, both dehumidification modes have certain defects: under high humidity conditions, the dew point temperature may be lower than the liquid cooling plate temperature, and the dehumidification does not need to be turned on. At this time, turning on the dehumidification will increase the dehumidification energy consumption; under low humidity conditions, the dew point temperature may be higher than the liquid cooling plate temperature, and the dehumidification needs to be turned on. If the dehumidification is not turned on at this time, condensation will occur. According to the humidity hysteresis, since there is a blank humidity interval according to the humidity hysteresis, that is, under high humidity, the dew point temperature is reached but the dehumidification is not turned on, it is difficult to accurately dehumidify the thermal management system, which increases the dehumidification energy consumption and affects the anti-condensation effect of the thermal management system. Therefore, the present application proposes a dehumidification method, electronic device and computer storable medium for a thermal management system to reduce the humidity of the thermal management system, prevent condensation in the thermal management system, and improve the performance and service life of the battery in the thermal management system.

[0031] like Figure 1 As shown, it is a flow chart of an embodiment of the dehumidification method of the thermal management system in the embodiment of the present application. The execution subject of the embodiment of the present application is an electrical device or a control module in the electrical device. The control module can be a battery management system (Battery Management System, BMS), a vehicle control unit (Vehicle Control Unit, VCU), etc. The embodiment of the present application is described in detail by taking the execution subject as BMS as an example. The thermal management system includes a battery pack and a liquid cooling unit located inside the container, and the liquid cooling unit is used to control the temperature of the battery pack. The dehumidification method of the thermal management system includes:

[0032] 101. Obtain the dew point temperature inside the container.

[0033] The dew point temperature refers to the temperature at which water vapor and water in the air reach a state of equilibrium. At the dew point temperature, condensed water will be produced when water vapor touches the solid surface. When the dew point temperature is high, condensation will occur.

[0034] Specifically, the dew point temperature at the current moment may be calculated according to the air temperature and air humidity inside the container at the current moment.

[0035] In one embodiment, obtaining the dew point temperature inside the container includes: monitoring the ambient temperature and ambient humidity inside the container; and determining the dew point temperature according to the ambient temperature and the ambient humidity.

[0036] Specifically, the dew point temperature may be determined based on a preset correlation between temperature, humidity and dew point temperature and the ambient temperature and humidity, or the dew point temperature may be determined using a preset enthalpy-humidity diagram.

[0037] The preset psychrometric chart refers to a chart that represents the relationship between air temperature, air humidity and dew point temperature, such as Figure 2 The figure shows a schematic diagram of a preset enthalpy-humidity diagram.

[0038] In a specific embodiment, a temperature sensor and a humidity sensor can be installed at a set position of the battery pack to monitor the ambient temperature and humidity inside the container respectively. When the BMS receives the ambient humidity and temperature output by the temperature sensor and the humidity sensor at the current moment, a match is performed according to a preset enthalpy-humidity diagram, that is, the ambient humidity and temperature at the current moment are matched with the temperature in the preset enthalpy-humidity diagram, so as to obtain the minimum temperature difference that may produce condensed water, that is, the dew point temperature.

[0039] 102. Monitor the outlet water temperature of the liquid cooling unit.

[0040] The inventor found that the liquid cooling plate of the liquid cooling unit is cooled by the water discharged from the liquid cooling unit entering the liquid cooling plate, so the lowest temperature of the liquid cooling plate is greater than or equal to the outlet water temperature of the liquid cooling unit, and thus, it can be ensured that the outlet water temperature of the liquid cooling unit is the lowest temperature of the liquid cooling plate. That is, the outlet water temperature of the liquid cooling unit is the lowest temperature of the liquid cooling plate of the liquid cooling unit.

[0041] Specifically, the outlet water temperature can be monitored by the temperature sensor inside the liquid cooling unit, and the BMS receives the outlet water temperature collected by the internal temperature sensor. It can be understood that in this embodiment, by monitoring the outlet water temperature of the liquid cooling unit, that is, the lowest temperature of the liquid cooling plate of the liquid cooling unit, judging whether dehumidification is required based on the lowest temperature, the accuracy and effectiveness of the judgment result of whether the dehumidification function needs to be turned on can be improved, so that the dehumidification equipment can be turned on or off accurately and in real time, and accurate dehumidification of the thermal management system can be achieved, which is conducive to reducing dehumidification energy consumption and reducing the probability of condensation.

[0042] In one embodiment, monitoring the outlet water temperature of the liquid cooling unit includes: collecting the outlet water temperature through a temperature sensor built into the outlet of the liquid cooling unit.

[0043] Specifically, the inventors found that, in the actual process, when performing dehumidification control, the disadvantage of monitoring the temperature of the liquid cooling plate is that the lowest temperature of the liquid cooling plate cannot be measured accurately and quickly in real time. Since the temperature of each part of the liquid cooling plate is different, to measure the lowest temperature of the liquid cooling plate, it is necessary to arrange many sensors on the liquid cooling plate, and then obtain the lowest temperature of the liquid cooling plate by comparison. However, in the actual process, in some cases, if sensors are arranged at all positions on the liquid cooling plate, the cost is high and the sensor installation and arrangement are difficult, and multiple temperature comparisons are required to obtain the lowest temperature, so that the lowest temperature cannot be obtained quickly and accurately. In other cases, if sensors are arranged at some positions of the liquid cooling plate, since the temperature of the place not measured may be lower than the measured temperature, if the measured temperature is used as the lowest temperature, it is difficult to ensure that the measured temperature is the lowest temperature of the liquid cooling plate. Therefore, in this embodiment, the water outlet temperature is collected by the temperature sensor built into the outlet of the liquid cooling unit, and the built-in temperature sensor is directly used for monitoring, which reduces the cost and greatly improves the monitoring efficiency of the lowest temperature of the liquid cooling plate of the liquid cooling unit.

[0044] In a specific embodiment, Figure 3 The figure shows the working principle of the liquid cooling unit, where T represents the temperature sensor built into the outlet of the liquid cooling unit. The outlet water temperature of the liquid cooling unit is detected by the internal temperature sensor of the liquid cooling unit, and no additional sensors are required, which reduces costs and improves monitoring efficiency.

[0045] 103. When the dew point temperature is greater than or equal to the water outlet temperature, dehumidify the battery pack.

[0046] Specifically, when the BMS detects that the dew point temperature is greater than or equal to the outlet water temperature, it indicates that the humidity inside the container is high and condensation will occur. The BMS sends a dehumidification instruction to the thermal management system, that is, controls the dehumidification device with a dehumidification function in the thermal management system to turn on the dehumidification function to dehumidify the battery pack, so as to reduce the humidity of the thermal management system, prevent condensation in the thermal management system, and improve the performance and service life of the battery in the thermal management system. It can be understood that in this embodiment, when the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified. Since the outlet water temperature is the lowest temperature of the liquid cooling plate of the liquid cooling unit, the accuracy and effectiveness of the judgment result of whether the dehumidification function needs to be turned on can be improved according to the lowest temperature, and the dew point temperature can accurately judge whether condensation will occur. Therefore, when the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified, which realizes accurate dehumidification of the thermal management system, reduces dehumidification energy consumption, improves the anti-condensation effect of the thermal management system, and thus improves the performance and service life of the battery in the thermal management system.

[0047] In one embodiment, when the dew point temperature is greater than or equal to the water outlet temperature, the battery pack is dehumidified, including: when the dew point temperature is greater than or equal to the water outlet temperature, controlling the dehumidification equipment to turn on the dehumidification function to reduce the air humidity inside the container to prevent condensation on the battery pack.

[0048] The dehumidification device may be a dehumidification air conditioner, a semiconductor cooling sheet, a semiconductor cooling sheet and a fan, or any combination thereof, which is not limited in this application. Figure 4 , which is a schematic diagram of the working principle of a dehumidification device including a semiconductor refrigeration sheet and a fan, wherein S represents a humidity sensor.

[0049] Specifically, when the dew point temperature is greater than or equal to the water outlet temperature, the BMS sends a dehumidification instruction to the thermal management system to control the dehumidification equipment to turn on the dehumidification function. For example, the semiconductor refrigeration plate and the fan are controlled to turn on. After the semiconductor refrigeration plate is turned on, the temperature of one side of the semiconductor refrigeration plate will decrease, that is, it will become cold, and the temperature of the other side will increase, that is, it will become hot. The low temperature at the cold end causes the air to pass through this part. Since the air temperature drops below the dew point temperature, it causes moisture condensation, causing the water vapor in the air to condense into water droplets, and the heat at the hot end is taken away by the fan, thereby reducing the air humidity inside the container and preventing condensation on the battery pack.

[0050] In one embodiment, when the dew point temperature is greater than or equal to the water outlet temperature, the dehumidification device is controlled to start the dehumidification function to reduce the air humidity inside the container and prevent condensation of the battery pack, including: when the dew point temperature is greater than or equal to the water outlet temperature, the dehumidification device is controlled to dehumidify at a first target power, and after dehumidifying until the water outlet temperature of the liquid cooling unit is greater than the dew point temperature, the dehumidification is stopped, and the water outlet temperature of the liquid cooling unit is monitored in real time; when the water outlet temperature is less than or equal to the dew point temperature, the dehumidification device is controlled to dehumidify at a second target power, wherein the first target power and the second target power are both determined based on the mapping relationship between the difference between the dew point temperature and the water outlet temperature and the target power.

[0051] The mapping relationship between the difference between the dew point temperature and the outlet water temperature and the target power can be obtained based on multiple experimental data. The larger the difference between the dew point temperature and the outlet water temperature, the higher the corresponding target power can be set to improve the dehumidification efficiency of the dehumidification equipment.

[0052] Specifically, when the dew point temperature is greater than or equal to the outlet water temperature, the BMS controls the dehumidification equipment to perform dehumidification at the first target power, and after dehumidification until the outlet water temperature of the liquid cooling unit is greater than the dew point temperature, stops dehumidification, and monitors the outlet water temperature of the liquid cooling unit in real time. When the outlet water temperature is less than or equal to the dew point temperature, controls the dehumidification equipment to perform dehumidification at the second target power. It can be understood that in this embodiment, a dehumidification feedback mechanism is provided, that is, during the dehumidification process, the BMS monitors the outlet water temperature in real time, adjusts the working state of the dehumidification equipment according to the real-time dehumidification situation, further improves the dehumidification efficiency, and enhances the anti-condensation effect of the thermal management system.

[0053] In one embodiment, the method further includes: if it is detected that the liquid cooling unit is in a closed state, monitoring the ambient humidity inside the container; when the ambient humidity is greater than a first preset humidity, dehumidifying the battery pack.

[0054] The first preset humidity is a critical humidity at which condensation can occur. For example, the first preset humidity may be 70%.

[0055] Specifically, when the liquid cooling unit is in the off state, the ambient humidity inside the container can be collected through the humidity sensor. After receiving the ambient humidity, if the BMS detects that the ambient humidity is greater than the first preset humidity, it indicates that the humidity inside the container is high and condensation is very likely to occur. Therefore, the BMS sends a dehumidification instruction to the thermal management system, that is, controls the dehumidification device with dehumidification function in the thermal management system to turn on the dehumidification function to dehumidify the battery pack, so as to reduce the humidity of the thermal management system, prevent condensation in the thermal management system, and improve the performance and service life of the battery in the thermal management system.

[0056] In a specific scenario, such as the installation or maintenance scenario of a thermal management system, the liquid cooling unit is in a closed state, and the humidity in the battery compartment is consistent with the atmospheric humidity and is relatively high. After the door is closed, the humidity of the air is relatively high, and the dehumidification process of the dehumidification equipment requires a certain amount of time. When the humidity has not completely dropped, that is, when the ambient humidity is greater than the first preset humidity, the water outlet temperature of the liquid cooler has reached a relatively low state, and condensation is very likely to occur at this time. It is necessary to ensure that the humidity in the battery compartment is kept low before the liquid cooling unit is turned on. Therefore, when the ambient humidity is greater than the first preset humidity, the battery pack is dehumidified to effectively reduce the chance of condensation.

[0057] In one embodiment, when the ambient humidity is greater than a first preset humidity, the battery pack is dehumidified, including: when the ambient humidity is greater than the first preset humidity, controlling a dehumidification device to turn on a dehumidification function to reduce the air humidity inside the container to prevent condensation on the battery pack.

[0058] Specifically, when the ambient humidity is greater than the first preset humidity, the BMS sends a dehumidification instruction to the thermal management system to control the dehumidification equipment to turn on the dehumidification function. For example, the semiconductor refrigeration plate is controlled to turn on. After the semiconductor refrigeration plate is turned on, the temperature of one side of the semiconductor refrigeration plate will decrease, that is, it will become cold, and the temperature of the other side will increase, that is, it will become hot. The low temperature at the cold end causes the air to pass through this part. Since the air temperature drops below the dew point temperature, it causes moisture condensation, so that the water vapor in the air condenses into water droplets, and the heat at the hot end is taken away by the fan, thereby reducing the air humidity inside the container and preventing condensation on the battery pack.

[0059] In one embodiment, when the ambient humidity is greater than a first preset humidity, the dehumidification device is controlled to start a dehumidification function to reduce the air humidity inside the container to prevent condensation on the battery pack, including: when the ambient humidity is greater than the first preset humidity, the dehumidification device is controlled to perform dehumidification at a third target power, and when the ambient humidity inside the container is less than the second preset humidity, the dehumidification is stopped, and the ambient humidity inside the container is monitored in real time; when the ambient humidity is less than the second preset humidity, the dehumidification device is controlled to perform dehumidification at a fourth target power, wherein the second preset humidity is less than the first preset humidity, and the third target power and the fourth target power are both determined based on the mapping relationship between the difference between the ambient humidity and the first preset humidity and the target power.

[0060] The second preset humidity is a critical humidity at which condensation does not occur. For example, the second preset humidity may be 60%.

[0061] The mapping relationship between the difference between the ambient humidity and the first preset humidity and the target power can be obtained based on multiple experimental data. The larger the difference between the ambient humidity and the first preset humidity, the higher the corresponding target power can be set to improve the dehumidification efficiency of the dehumidification device.

[0062] Specifically, when the ambient humidity is greater than the first preset humidity, the BMS controls the dehumidification device to perform dehumidification at the third target power. When the ambient humidity is less than the second preset humidity, the dehumidification device is turned off, stops dehumidification, and monitors the ambient humidity inside the container in real time. When the ambient humidity is less than the second preset humidity, the dehumidification device is controlled to perform dehumidification at the fourth target power. It can be understood that in this embodiment, a dehumidification feedback mechanism is provided, that is, during the dehumidification process, the BMS monitors the ambient humidity in real time, adjusts the working state of the dehumidification device according to the real-time dehumidification situation, further improves the dehumidification efficiency, and enhances the anti-condensation effect of the thermal management system.

[0063] like Figure 5 As shown, it is a schematic diagram of the process of dehumidification of the thermal management system.

[0064] It should be noted that when the dehumidification equipment is a semiconductor refrigeration plate and a fan, the process of stopping dehumidification can be: control the semiconductor refrigeration plate to turn off first, and control the fan to continue running for 2 minutes before turning off, so that the air continues to circulate, making the air humidity inside the container more uniform and improving the dehumidification effect.

[0065] The dehumidification method of the above-mentioned thermal management system obtains the dew point temperature inside the container and monitors the outlet water temperature of the liquid cooling unit. When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified, thereby reducing the humidity of the thermal management system, preventing condensation in the thermal management system, and improving the performance and service life of the batteries in the thermal management system.

[0066] like Figure 6 As shown, the embodiment of the present application further provides a dehumidification device 200 of a thermal management system, the thermal management system includes a battery pack and a liquid cooling unit located inside a container, the liquid cooling unit is used to control the temperature of the battery pack, and the dehumidification device 200 of the thermal management system includes:

[0067] An acquisition module 201 is used to acquire the dew point temperature inside the container;

[0068] A monitoring module 202, used to monitor the outlet water temperature of the liquid cooling unit;

[0069] The dehumidification module 203 is used to dehumidify the battery pack when the dew point temperature is greater than or equal to the outlet water temperature.

[0070] In one embodiment, the monitoring module 202 is specifically used for:

[0071] The outlet water temperature is collected by a temperature sensor built into the outlet of the liquid cooling unit.

[0072] In one embodiment, the acquisition module 201 is specifically used for:

[0073] Monitoring the ambient temperature and humidity inside the container;

[0074] The dew point temperature is determined according to the ambient temperature and the ambient humidity.

[0075] In one embodiment, the dehumidification module 203 is specifically used for:

[0076] When the dew point temperature is greater than or equal to the water outlet temperature, the dehumidification device is controlled to start the dehumidification function to reduce the air humidity inside the container to prevent condensation of the battery pack.

[0077] In one embodiment, the dehumidification module 203 is further used for:

[0078] When the dew point temperature is greater than or equal to the outlet water temperature, the dehumidification device is controlled to perform dehumidification at a first target power, and after dehumidification until the outlet water temperature of the liquid cooling unit is greater than the dew point temperature, the dehumidification is stopped, and the outlet water temperature of the liquid cooling unit is monitored in real time;

[0079] When the outlet water temperature is less than or equal to the dew point temperature, the dehumidification device is controlled to perform dehumidification at a second target power, wherein the first target power and the second target power are both determined based on a mapping relationship between a difference between the dew point temperature and the outlet water temperature and the target power.

[0080] In one embodiment, the dehumidification device 200 of the thermal management system further includes:

[0081] A first detection module, configured to monitor the ambient humidity inside the container if it is detected that the liquid cooling unit is in a closed state;

[0082] The first dehumidification module is used to dehumidify the battery pack when the ambient humidity is greater than a first preset humidity.

[0083] In one embodiment, the first dehumidification module is specifically used for:

[0084] When the ambient humidity is greater than a first preset humidity, the dehumidification device is controlled to start a dehumidification function to reduce the air humidity inside the container to prevent condensation on the battery pack.

[0085] In one embodiment, the first dehumidification module is further used for:

[0086] When the ambient humidity is greater than the first preset humidity, the dehumidification device is controlled to perform dehumidification at a third target power, and when the ambient humidity inside the container is less than the second preset humidity, the dehumidification is stopped, and the ambient humidity inside the container is monitored in real time;

[0087] When the ambient humidity is lower than the second preset humidity, the dehumidification device is controlled to perform dehumidification at a fourth target power, wherein the second preset humidity is lower than the first preset humidity, and the third target power and the fourth target power are both determined based on the mapping relationship between the difference between the ambient humidity and the first preset humidity and the target power.

[0088] The embodiment of the present application further provides an electronic device, which integrates a dehumidification device of any thermal management system provided in the embodiment of the present application, and the electronic device includes:

[0089] one or more processors;

[0090] Memory; and

[0091] One or more applications, wherein the one or more applications are stored in the memory and are configured to be executed by the processor to execute the dehumidification method for the thermal management system described in any of the above-mentioned dehumidification method embodiments for the thermal management system.

[0092] The present application also provides an electronic device that integrates a dehumidification device of any thermal management system provided in the present application. Figure 7 As shown, it shows a schematic diagram of the structure of the electronic device involved in the embodiment of the present application, specifically:

[0093] The electronic device may include components such as a processor 301 with one or more processing cores, a memory 302 with one or more computer-readable storage media, a power supply 303, and an input unit 304. Those skilled in the art will appreciate that Figure 7 The electronic device structure shown in the figure does not constitute a limitation of the electronic device, and may include more or less components than shown in the figure, or combine certain components, or arrange the components differently.

[0094] in:

[0095] The processor 301 is the control center of the electronic device. It uses various interfaces and lines to connect various parts of the entire electronic device. By running or executing software programs and / or modules stored in the memory 302, and calling data stored in the memory 302, it executes various functions of the electronic device and processes data, thereby monitoring the electronic device as a whole. Optionally, the processor 301 may include one or more processing cores; preferably, the processor 301 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 301.

[0096] The memory 302 can be used to store software programs and modules. The processor 301 executes various functional applications and data processing by running the software programs and modules stored in the memory 302. The memory 302 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area may store data created according to the use of the electronic device, etc. In addition, the memory 302 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices. Accordingly, the memory 302 may also include a memory controller to provide the processor 301 with access to the memory 302.

[0097] The electronic device also includes a power supply 303 for supplying power to each component. Preferably, the power supply 303 can be logically connected to the processor 301 through a power management system, so that the power management system can manage charging, discharging, power consumption and other functions. The power supply 303 can also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators and other arbitrary components.

[0098] The electronic device may further include an input unit 304, which may be used to receive input digital or character information and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control.

[0099] Although not shown, the electronic device may further include a display unit, etc., which will not be described in detail herein. Specifically in this embodiment, the processor 301 in the electronic device will load the executable files corresponding to the processes of one or more application programs into the memory 302 according to the following instructions, and the processor 301 will run the application programs stored in the memory 302, thereby realizing various functions, as follows:

[0100] Obtaining the dew point temperature inside the container;

[0101] Monitoring the outlet water temperature of the liquid cooling unit;

[0102] When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified.

[0103] A person of ordinary skill in the art will appreciate that all or part of the steps in the various methods of the above embodiments may be completed by instructions, or by controlling related hardware through instructions. The instructions may be stored in a computer-readable storage medium and loaded and executed by a processor.

[0104] To this end, an embodiment of the present application provides a computer-readable storage medium, which may include: a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, etc. A computer program is stored thereon, and the computer program is loaded by a processor to execute the steps in any dehumidification method of a thermal management system provided in an embodiment of the present application. For example, the computer program can be loaded by a processor to execute the following steps:

[0105] Obtaining the dew point temperature inside the container;

[0106] Monitoring the outlet water temperature of the liquid cooling unit;

[0107] When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified.

[0108] The embodiment of the present application also provides a computer program product, including a computer program / instruction, which, when executed by a processor, is used to execute the steps in any dehumidification method of a thermal management system provided in the embodiment of the application.

[0109] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the detailed description of other embodiments above, and will not be repeated here.

[0110] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to be implemented as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments, which will not be repeated here.

[0111] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A dehumidification method for a thermal management system, characterized in that: The thermal management system includes a battery pack and a liquid cooling unit located inside a container, wherein the liquid cooling unit is used to control the temperature of the battery pack. The method includes: Obtaining the dew point temperature inside the container; Monitoring the outlet water temperature of the liquid cooling unit; When the dew point temperature is greater than or equal to the outlet water temperature, the battery pack is dehumidified.

2. The dehumidification method of the thermal management system according to claim 1, characterized in that: The monitoring of the outlet water temperature of the liquid cooling unit comprises: The outlet water temperature is collected by a temperature sensor built into the outlet of the liquid cooling unit.

3. The dehumidification method of the thermal management system according to claim 1, characterized in that: The step of obtaining the dew point temperature inside the container includes: Monitoring the ambient temperature and humidity inside the container; The dew point temperature is determined according to the ambient temperature and the ambient humidity.

4. The dehumidification method of the thermal management system according to claim 1, characterized in that: When the dew point temperature is greater than or equal to the outlet water temperature, dehumidifying the battery pack includes: When the dew point temperature is greater than or equal to the water outlet temperature, the dehumidification device is controlled to start the dehumidification function to reduce the air humidity inside the container to prevent condensation of the battery pack.

5. The dehumidification method of the thermal management system according to claim 4, characterized in that: When the dew point temperature is greater than or equal to the outlet water temperature, controlling the dehumidification device to start the dehumidification function to reduce the air humidity inside the container to prevent condensation of the battery pack includes: When the dew point temperature is greater than or equal to the outlet water temperature, the dehumidification device is controlled to perform dehumidification at a first target power, and after dehumidification until the outlet water temperature of the liquid cooling unit is greater than the dew point temperature, the dehumidification is stopped, and the outlet water temperature of the liquid cooling unit is monitored in real time; When the outlet water temperature is less than or equal to the dew point temperature, the dehumidification device is controlled to perform dehumidification at a second target power, wherein the first target power and the second target power are both determined based on a mapping relationship between a difference between the dew point temperature and the outlet water temperature and the target power.

6. The dehumidification method of the thermal management system according to claims 1-5, characterized in that: The method further comprises: If it is detected that the liquid cooling unit is in a closed state, monitoring the ambient humidity inside the container; When the ambient humidity is greater than a first preset humidity, the battery pack is dehumidified.

7. The dehumidification method of a thermal management system according to claim 6, characterized in that: When the ambient humidity is greater than a first preset humidity, dehumidifying the battery pack includes: When the ambient humidity is greater than a first preset humidity, the dehumidification device is controlled to start a dehumidification function to reduce the air humidity inside the container to prevent condensation on the battery pack.

8. The dehumidification method of the thermal management system according to claim 7, characterized in that: When the ambient humidity is greater than a first preset humidity, controlling the dehumidification device to start a dehumidification function to reduce the air humidity inside the container to prevent condensation of the battery pack includes: When the ambient humidity is greater than the first preset humidity, the dehumidification device is controlled to perform dehumidification at a third target power, and when the ambient humidity inside the container is less than the second preset humidity, the dehumidification is stopped, and the ambient humidity inside the container is monitored in real time; When the ambient humidity is lower than the second preset humidity, the dehumidification device is controlled to perform dehumidification at a fourth target power, wherein the second preset humidity is lower than the first preset humidity, and the third target power and the fourth target power are both determined based on the mapping relationship between the difference between the ambient humidity and the first preset humidity and the target power.

9. An electronic device, characterized in that: It comprises a memory and a processor; the memory stores an application program, and the processor is used to run the application program in the memory to execute the steps in the dehumidification method of the thermal management system according to any one of claims 1 to 8.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps in the dehumidification method of the thermal management system according to any one of claims 1 to 8.

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