Heat dissipation method and device and electronic equipment

Abstract

The embodiment of the invention discloses a heat dissipation method and device and electronic equipment. The method comprises the steps that m temperatures of m heating elements are obtained; acquiring m first temperature thresholds of the m heating elements; determining a heat dissipation corresponding relation between the m heating elements and the n cooling water channels; n initial valve opening degrees are determined based on the heat dissipation corresponding relation; in the first preset time period, if the m temperatures are all lower than or equal to the corresponding first temperature threshold value in the m first temperature threshold values, the n cooling water channels are controlled to conduct heat dissipation on the m heating elements according to the corresponding initial valve opening degree in the n initial valve opening degrees; if at least one of the m temperatures is higher than the corresponding first temperature threshold value in the m first temperature threshold values, n initial valve opening degrees are regulated and controlled, and n first valve opening degrees are obtained; and the m heating elements are cooled by controlling the n cooling water channels according to the corresponding first valve opening degree in the n first valve opening degrees.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation of vehicle-mounted power supplies, and in particular to a heat dissipation method, device and electronic equipment. Background Art

[0002] With the continuous development of automotive electronic technology, on-board power supplies play a vital role in modern automobiles. On-board power supplies provide stable power supply for various electronic devices, including on-board navigation systems, audio systems, driving recorders, smartphone charging, etc. The widespread application of these electronic devices has led to an increasing power demand for on-board power supplies, and also put forward higher requirements on the heat dissipation performance of on-board power supplies.

[0003] The vehicle-mounted power supply usually includes multiple heat-generating components. During the operation of the vehicle-mounted power supply, the temperatures of the multiple heat-generating components are not the same. The traditional heat dissipation water channel cannot meet the heat dissipation requirements of the multiple heat-generating components, and the heat dissipation efficiency is low.

[0004] Therefore, in the process of heat dissipation of the vehicle power supply, a multi-channel modular heat dissipation water channel design and control method is urgently needed to meet the heat dissipation requirements of multiple heat-generating components and improve the heat dissipation efficiency. Summary of the invention

[0005] In order to solve the above problems, the embodiments of the present invention provide a heat dissipation method, device and electronic device, which can meet the heat dissipation requirements of multiple heat-generating components when multiple components of the vehicle power supply are powered on and running, thereby improving the heat dissipation efficiency.

[0006] In a first aspect, an embodiment of the present invention provides a heat dissipation method, which is applied to a heat dissipation system of an on-board power supply, wherein the on-board power supply includes m heating elements, where m is a positive integer, and the heat dissipation system includes a temperature sensing package module, a cooling water channel module, and a control valve module, wherein the cooling water channel module includes n cooling water channels, and each heating element corresponds to one or more cooling water channels, where n is a positive integer. The heat dissipation system dissipates the m heating elements through the coolant in the n cooling water channels, and the method includes:

[0007] Acquire the temperature of each of the m heating elements through the temperature sensing package module to obtain m temperatures;

[0008] Obtaining a first temperature threshold of each of the m heating elements to obtain m first temperature thresholds;

[0009] Determining a heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on a first position of each of the m heat-generating elements, a second position of each of the n cooling water channels, and a contact correspondence between the m heat-generating elements and the n cooling water channels;

[0010] Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels;

[0011] Within a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings;

[0012] If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, regulating the n initial valve openings to obtain n first valve openings;

[0013] The control valve module controls the n cooling water channels to dissipate heat for the m heating elements at a corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than a corresponding first temperature threshold among the m first temperature thresholds.

[0014] In a second aspect, an embodiment of the present invention provides a heat dissipation device, which is applied to a heat dissipation system of an on-board power supply, wherein the on-board power supply includes m heating elements, where m is a positive integer, and the heat dissipation system includes a temperature sensing package module, a cooling water channel module, and a control valve module, wherein the cooling water channel module includes n cooling water channels, and each heating element corresponds to one or more cooling water channels, where n is a positive integer. The heat dissipation system dissipates heat from the m heating elements through the coolant in the n cooling water channels, and the device includes an acquisition unit and a processing unit;

[0015] The acquisition unit is used to acquire the temperature of each of the m heating elements through the temperature sensing package module to obtain m temperatures;

[0016] Obtaining a first temperature threshold of each of the m heating elements to obtain m first temperature thresholds;

[0017] The processing unit is used to determine the heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on the first position of each of the m heat-generating elements, the second position of each of the n cooling water channels, and the contact correspondence between the m heat-generating elements and the n cooling water channels;

[0018] Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels;

[0019] Within a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings;

[0020] If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, regulating the n initial valve openings to obtain n first valve openings;

[0021] The control valve module controls the n cooling water channels to dissipate heat for the m heating elements at a corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than a corresponding first temperature threshold among the m first temperature thresholds.

[0022] In a third aspect, an embodiment of the present invention provides an electronic device, comprising a processor and a memory, wherein the processor is connected to the memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the electronic device performs the method described in the first aspect.

[0023] Implementing the embodiments of the present application has the following beneficial effects:

[0024] In the embodiment of the present application, the temperature of each of the m heating elements is first obtained through the temperature sensing package module to obtain m temperatures, and the first temperature threshold of each of the m heating elements is obtained to obtain m first temperature thresholds. Then, based on the first position of each of the m heating elements, the second position of each of the n cooling water channels, and the contact correspondence between the m heating elements and the n cooling water channels, the heat dissipation correspondence between the m heating elements and the n cooling water channels is determined, and n initial valve openings are determined based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the coolant in the corresponding cooling water channels in the n cooling water channels. , within the first preset time period, if the m temperatures are all lower than or equal to the corresponding first temperature threshold among the m first temperature thresholds, the control valve module is used to control the n cooling water channels to dissipate the heat of the m heating elements with the corresponding initial valve opening among the n initial valve openings, and if at least one temperature among the m temperatures is higher than the corresponding first temperature threshold among the m first temperature thresholds, the n initial valve openings are adjusted to obtain the n first valve openings, and the control valve module is used to control the n cooling water channels to dissipate the heat of the m heating elements with the corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than the corresponding first temperature threshold among the m first temperature thresholds. Thus, by obtaining the temperatures and first temperature thresholds of the m heating elements and determining the heat dissipation correspondence between the m heating elements and the n cooling water channels, the flow of the coolant in the corresponding cooling water channels can be adjusted when multiple components of the vehicle-mounted power supply are powered on and running, so as to meet the heat dissipation requirements of multiple heating components and improve the heat dissipation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the drawings required for use in the embodiments of the present invention or the background technology will be described below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a flow chart of a heat dissipation method provided in an embodiment of the present application;

[0027] Figure 2A It is a schematic diagram of the overall structure of a heat dissipation system provided in an embodiment of the present application;

[0028] Figure 2B is a schematic diagram of the decomposed structure of a heat dissipation system provided in an embodiment of the present application;

[0029] Figure 2C is a schematic cross-sectional structure diagram of a heat dissipation system provided in an embodiment of the present application;

[0030] Figure 3A It is an overall flow chart of a precise heat dissipation process provided by an embodiment of the present application;

[0031] Figure 3B It is a supplementary flow chart of a precise heat dissipation process provided by an embodiment of the present application;

[0032] Figure 4 is a structural schematic diagram of a heat dissipation device provided in an embodiment of the present application;

[0033] Figure 5 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0035] The terms "first", "second", "third" and "fourth" etc. in the specification and claims of the present application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but optionally includes steps or modules that are not listed, or optionally includes other steps or modules inherent to these processes, methods, products or devices.

[0036] Reference to "embodiments" herein means that a particular feature, result, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] In the traditional heat dissipation design for vehicle-mounted power supplies, there is usually only one heat dissipation water channel, while the vehicle-mounted power supply often includes multiple heat-generating components. The operating temperatures and derating temperatures of different heat-generating components are different. A single heat dissipation water channel cannot effectively deal with the problem of different temperatures of multiple heat-generating components. In order to solve the above problems, an embodiment of the present application provides a heat dissipation method. The heat dissipation method provided in the embodiment of the present application is applied to the heat dissipation system of the vehicle-mounted power supply. The heat dissipation system adopts a multi-channel water channel design. The heat dissipation system includes multiple cooling water channels, so that the coolant flows in multiple channels, and the multiple heat-generating components of the vehicle-mounted power supply are dissipated by the coolant in the multiple cooling water channels, so that the temperature of the multiple heat-generating components is maintained within the corresponding operating temperature range. In addition, due to the influence of the heat dissipation water channel shell structure design, eddy currents will exist in some areas of the water channel, thereby affecting the heat dissipation efficiency of the area. In the embodiment of the present application, a split water channel design is adopted, and the cross-sectional area is consistent in the entire channel, so that the pressure drop of the overall heat dissipation system is smaller than that of a single three-dimensional water channel, avoiding the existence of eddy current areas, thereby eliminating the risk of trapped air.

[0038] Specifically, in an embodiment of the present application, the on-board power supply includes a water channel support frame, m heating elements and a heat dissipation system, m is a positive integer, the heat dissipation system includes a temperature sensing package module, a cooling water channel module and a control valve module, the cooling water channel module includes n cooling water channels, each heating element corresponds to one or more cooling water channels, n is a positive integer, the heat dissipation system dissipates heat from the m heating elements through the coolant in the n cooling water channels, the n cooling water channels adopt a split water channel design, the cross-sectional area of ​​each of the n cooling water channels is consistent, the water channel support frame is used to support the n cooling water channels, a transformer area and a field effect tube area are provided in the on-board power supply, the water channel support frame divides the n cooling water channels into an inner water channel and an outer water channel, the inner water channel is used to dissipate heat from the heating elements located in the transformer area among the m heating elements, and the outer water channel is used to dissipate heat from the heating elements located in the field effect tube area among the m heating elements, the heat dissipation water channels of the embodiment of the present application include a circulating water channel and n cooling water channels. See. Figure 1 , Figure 1 1 is a flow chart of a heat dissipation method provided in an embodiment of the present application. Figure 1 As shown, the heat dissipation method provided in the embodiment of the present application includes but is not limited to the following steps:

[0039] Step S101: obtaining the temperature of each of the m heating elements through the temperature sensing package module to obtain m temperatures;

[0040] Step S102: acquiring a first temperature threshold of each heating element among the m heating elements, to obtain m first temperature thresholds;

[0041] Step S103: determining a heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on a first position of each of the m heat-generating elements, a second position of each of the n cooling water channels, and a contact correspondence between the m heat-generating elements and the n cooling water channels;

[0042] Step S104: determining n initial valve openings based on the heat dissipation correspondence;

[0043] The n initial valve openings are used to control the flow of coolant in the corresponding cooling water channels among the n cooling water channels;

[0044] Step S105: within the first preset time period, if the m temperatures are all lower than or equal to the corresponding first temperature threshold among the m first temperature thresholds, controlling the n cooling water channels to dissipate heat from the m heating elements at the corresponding initial valve opening among the n initial valve openings through the control valve module;

[0045] Step S106: if at least one temperature among the m temperatures is higher than the corresponding first temperature threshold among the m first temperature thresholds, adjusting the n initial valve openings to obtain n first valve openings;

[0046] Step S107: controlling the n cooling water channels through the control valve module to dissipate heat from the m heating elements at a corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than a corresponding first temperature threshold among the m first temperature thresholds.

[0047] In a possible embodiment, the m heating elements may be preset heating components, may be all heating components related to the vehicle power supply, or may be heating components whose operating temperature is higher than the corresponding derating temperature among all components related to the vehicle power supply. The m heating elements are close to n cooling water channels, and the heat dissipation of the m heating elements is achieved through the temperature difference between the m heating elements and the coolant in the corresponding cooling water channels and heat conduction. The temperature sensing package module includes multiple temperature sensing packages, and the multiple temperature sensing packages are arranged at each of the m heating elements, and each temperature sensing package is used to obtain the temperature of the corresponding heating element among the m heating elements.

[0048] In a possible embodiment, each of the m heating elements corresponds to a first position, each of the n cooling water channels corresponds to a second position, and there is a contact correspondence relationship between the m heating elements and the n cooling water channels. The heat dissipation correspondence relationship between the m heating elements and the n cooling water channels is determined based on the first position of each of the m heating elements, the second position of each of the n cooling water channels, and the contact correspondence relationship between the m heating elements and the n cooling water channels. For example, the heating elements include a transformer and a field effect transistor. According to the positions of the transformer and the field effect transistor and the positions of the n cooling water channels, it is determined that there are j cooling water channels that have a contact correspondence relationship with the transformer and k cooling water channels that have a contact correspondence relationship with the field effect transistor. Then, there is a heat dissipation correspondence relationship between the transformer and the j cooling water channels, and there is a heat dissipation correspondence relationship between the field effect transistor and the k cooling water channels. When the temperature of the transformer is higher than the first temperature threshold of the transformer, the valve opening of the n cooling water channels is regulated to increase the coolant flow rate of the j cooling water channels, wherein j and k are both positive integers and the sum of the two is less than or equal to n. Since the heat dissipation efficiency is higher when the heat-generating element is in direct contact with the cooling water channel, when the heat-generating element is in direct contact with the cooling water channel, it is confirmed that there is a contact correspondence relationship between the heat-generating element and the cooling water channel. For example, the water channel support frame divides the n cooling water channels into an inner water channel and an outer water channel. The transformer in the transformer area is in direct contact with the inner water channel and is blocked by the water channel support frame with the outer water channel. Then, there is a contact correspondence relationship between the transformer and the inner water channel. The contact correspondence relationship is used to determine at least one cooling water channel corresponding to the target heat-generating element, and the target heat-generating element is any heat-generating element among the m heat-generating elements. Based on the heat dissipation correspondence relationship, the n initial valve openings corresponding to the n cooling water channels are determined, wherein the n initial valve openings are The initial valve opening is used to control the flow rate of coolant in the corresponding cooling water channels among the n cooling water channels. The n initial valve openings can be the same, or they can be adjusted according to the number or heating characteristics of the heating elements corresponding to each cooling water channel among the n cooling water channels. Then, the first temperature threshold of each heating element among the m heating elements is obtained to obtain m first temperature thresholds, and when the vehicle power supply is powered on, the temperature of each heating element among the m heating elements is obtained through the temperature sensing package module to obtain m temperatures, wherein each temperature sensing package in the temperature sensing package module measures the temperature of the corresponding heating element among the m heating elements through the corresponding preset temperature measurement frequency to obtain m temperatures, and the preset temperature measurement frequency of each temperature sensing package can be the same or different.

[0049] When the vehicle power supply starts to run, within the first preset time period, if the m temperatures are all lower than or equal to the corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat to the m heating elements with the corresponding initial valve opening among the n initial valve openings, so that the m temperatures are not higher than the corresponding first temperature threshold among the m first temperature thresholds. Within the first preset time period, if at least one temperature among the m temperatures is higher than the corresponding first temperature threshold among the m first temperature thresholds, the n initial valve openings are regulated to obtain n first valve openings, and the n first valve openings are used to control the flow of coolant in the corresponding cooling water channels among the n cooling water channels, so that the flow of coolant in the cooling water channels corresponding to the temperature higher than the corresponding first temperature threshold among the m first temperature thresholds is maximized, and the control valve module controls the n cooling water channels to dissipate heat to the m heating elements with the corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than the corresponding first temperature threshold among the m first temperature thresholds. The start time of the first preset time period may be the power-on time of the vehicle power supply, and the end time of the first preset time period may be the time corresponding to a preset time interval after the power-on time.

[0050] In the embodiment of the present application, when the total coolant flow rate is constant, the valve opening sizes of n cooling water channels are controlled by the control valve module to control the flow rate of the coolant distributed in each channel, so as to achieve a large flow rate in the flow channel in the heat dissipation area corresponding to the high-temperature components, a strong heat exchange capacity, and the ability to take away more heat, thereby improving the heat exchange efficiency of the entire heat dissipation system.

[0051] Optionally, step S104, determining n initial valve openings based on the heat dissipation correspondence, may include the following steps:

[0052] Step S201: acquiring historical heating data of each heating element among m heating elements, and obtaining m historical heating data;

[0053] Step S202: determining a heating feature of each of the m heating elements based on the m historical heating data, and obtaining m heating features, wherein each of the m heating features is used to reflect at least one of the following features of the heating element corresponding to the heating feature: heating tendency, thermal sensitivity, thermal response speed, and heating threshold;

[0054] Step S203: determining the initial valve opening of each of the n cooling water channels based on the heat dissipation correspondence and the m heating characteristics, and obtaining n initial valve openings.

[0055] In a possible embodiment, historical heating data of each heating element among m heating elements are obtained to obtain m historical heating data. Based on the m historical heating data, the average temperature rise rate of each heating element in different time windows is calculated by sliding time window technology. For example, sliding windows of different lengths such as 1 minute, 5 minutes, and 10 minutes are set, and the average temperature rise value in each window is calculated respectively. By comparing the temperature rise rates under different windows, the change in the heating tendency of the heating element under different working conditions such as short-term burst load and long-term stable operation is determined, thereby determining the heating characteristics of each heating element among the m heating elements, and obtaining m heating characteristics, wherein each heating characteristic of the m heating characteristics is used to reflect at least one of the following characteristics of the heating element corresponding to the heating characteristic: heating tendency, thermal sensitivity, thermal response speed, and heating threshold.

[0056] In a possible embodiment, the layout of multiple heating elements and their relative positional relationship with the cooling water channels will affect the heat dissipation effect. The initial valve opening of each of the n cooling water channels is determined according to the heating characteristics, heat conduction, heat radiation between different heating elements and the difference in local cooling effect of the cooling water channels on each heating element, thereby obtaining n initial valve openings.

[0057] Optionally, step S106, regulating n initial valve openings to obtain n first valve openings, may include the following steps:

[0058] Step S301: determining a temperatures among m temperatures that are higher than corresponding first temperature thresholds among m first temperature thresholds; a is a natural number less than or equal to m;

[0059] Step S302: determining a first heating elements corresponding to a temperatures;

[0060] Step S303: determining b first cooling water channels from n cooling water channels based on the heat dissipation correspondence and a first heating elements; b is a natural number less than or equal to n;

[0061] Step S304: determining a difference between a temperature and a corresponding first temperature threshold among m first temperature thresholds, and obtaining a first temperature difference values; each first temperature difference value corresponds to a first heating element;

[0062] Step S305: determining a first heat dissipation requirement score corresponding to each of the a first temperature difference values ​​based on a preset first corresponding relationship, and obtaining a first heat dissipation requirement scores; the first corresponding relationship is used to reflect the mapping relationship between the a first temperature difference values ​​and the a first heat dissipation requirement scores;

[0063] Step S306: determining a second heat dissipation requirement score of each of the b first cooling water channels based on the a first heat dissipation requirement scores, to obtain b second heat dissipation requirement scores;

[0064] Step S307: taking the first cooling water channel corresponding to the maximum value among the b second heat dissipation demand scores as the target first cooling water channel;

[0065] Step S308: regulating n initial valve openings based on the b second heat dissipation demand scores to obtain n first valve openings, where the n first valve openings are used to maximize the flow rate of the coolant in the target first cooling water channel.

[0066] In a possible embodiment, a temperatures among m temperatures that are higher than the corresponding first temperature threshold among the m first temperature thresholds are determined, wherein a is a natural number less than or equal to m, and the first heating element corresponding to each of the a temperatures is determined to obtain a first heating elements corresponding to the a temperatures, and then b first cooling water channels are determined from n cooling water channels based on the heat dissipation correspondence and the a first heating elements, wherein b is a natural number less than or equal to n, and the b first cooling water channels are cooling water channels among the n cooling water channels that can dissipate heat for the a first heating elements. Then, the difference between a temperature and the corresponding first temperature threshold among m first temperature thresholds is determined to obtain a first temperature difference values, each first temperature difference value corresponds to a first heating element, and the first heat dissipation demand score corresponding to each first temperature difference value among the a first temperature difference values ​​is determined based on a preset first corresponding relationship to obtain a first heat dissipation demand score. The first corresponding relationship is used to reflect the mapping relationship between the a first temperature difference values ​​and the a first heat dissipation demand scores. The preset first corresponding relationship can be a preset segmented mapping relationship or a preset fuzzy logic algorithm. For example, the first heat dissipation demand score is determined according to the preset fuzzy logic algorithm and in combination with the heating trend and the ambient temperature. If the temperature difference of a first heating element is small but has shown a rapid upward trend in the past period of time, then its heat dissipation demand score will increase accordingly. If the temperature difference is small and the temperature tends to be stable, the score will be relatively low.

[0067] In a possible embodiment, the second heat dissipation demand score of each of the b first cooling water channels is determined based on the a first heat dissipation demand scores to obtain b second heat dissipation demand scores, and the second heat dissipation demand score of each first cooling water channel may be the sum or maximum value of the first heat dissipation demand scores of at least one first heating element corresponding to the first cooling water channel. When determining the second heat dissipation demand scores of the b first cooling water channels, in addition to the association with the first heating element and the first heat dissipation demand score, the evaluation result of the current working state of the first cooling water channel is also used, for example, by using a flow sensor, a pressure sensor, and a temperature sensor disposed on the first cooling water channel to obtain information such as the actual flow, pressure drop, and the inlet and outlet temperature difference of the coolant of the first cooling water channel, and evaluate its heat dissipation efficiency and remaining heat dissipation capacity.

[0068] In a possible embodiment, the first cooling water channel corresponding to the maximum value among the b second heat dissipation demand scores can be used as the target first cooling water channel. When the second heat dissipation demand scores of multiple first cooling water channels are similar, a multi-criteria decision analysis method is used to determine the target first cooling water channel. The first importance of the first cooling water channel is determined based on the degree of association between the first cooling water channel and the corresponding heating element and the key heating element. The second importance of the first cooling water channel is determined based on the historical fault records and the difficulty and cost of the repair of the heating element corresponding to the first cooling water channel. The target first cooling water channel is determined based on the first importance and the second importance. For example, the first cooling water channel with the highest first importance and second importance is used as the target first cooling water channel. Based on the b second heat dissipation demand scores, n initial valve openings are regulated to obtain n first valve openings, which are used to maximize the flow rate of the coolant in the target first cooling water channel. The first valve opening of the b second heat dissipation demand scores that is lower than the preset score threshold can be zero.

[0069] Optionally, in step S107, after the control valve module controls n cooling water channels to dissipate heat from m heating elements at corresponding first valve openings among n first valve openings, the heat dissipation method provided in the embodiment of the present application may further include the following steps:

[0070] Step S401: within a second preset time period, obtaining a second temperature threshold of each heating element among the m heating elements, obtaining m second temperature thresholds, each of the m second temperature thresholds being lower than a corresponding first temperature threshold among the m first temperature thresholds; the start time of the second preset time period is later than the end time of the first preset time period;

[0071] Step S402: if the temperature of each of the m heating elements is lower than the corresponding second temperature threshold among the m second temperature thresholds, adjusting the openings of the n first valves to obtain n second valve openings;

[0072] Step S403: Control n cooling water channels through the control valve module to dissipate heat for m heating elements with a corresponding second valve opening among the n second valve openings, so that the temperature of the m heating elements is between a corresponding first temperature threshold among the m first temperature thresholds and a corresponding second temperature threshold among the m second temperature thresholds.

[0073] In a possible embodiment, within the second preset time period, the second temperature threshold of each of the m heating elements is obtained to obtain m second temperature thresholds, wherein each of the m second temperature thresholds is lower than the corresponding first temperature threshold of the m first temperature thresholds, and the start time of the second preset time period is later than the end time of the first preset time period. If the temperature of each of the m heating elements is lower than the corresponding second temperature threshold of the m second temperature thresholds, the n first valve openings are regulated to obtain n second valve openings. For example, when it is determined that the temperature of all heating elements is lower than the corresponding second temperature threshold, the n second valve openings are determined according to a multi-objective optimization algorithm, with the objective function of minimizing the power consumption of the heat dissipation system, balancing the flow of each cooling water channel, and ensuring that the temperature of the heating element is stable in the target range, wherein the target range is between the first temperature threshold and the second temperature threshold, and then the optimal valve opening combination is determined under the condition of satisfying the temperature constraint, and the flow and power consumption under different valve openings are determined according to the water resistance characteristics of the cooling water channel. If the ambient temperature suddenly drops, causing the heat dissipation of the heating element to accelerate and the temperature decrease trend to be obvious, the first valve opening of the corresponding cooling water channel is reduced to reduce the coolant flow to avoid overcooling, thereby saving energy consumption of the cooling system. Then, the control valve module is used to control the n cooling water channels to dissipate the heat of the m heating elements with the corresponding second valve opening among the n second valve openings, so that the temperature of the m heating elements is between the corresponding first temperature threshold among the m first temperature thresholds and the corresponding second temperature threshold among the m second temperature thresholds. In the embodiment of the present application, the valve opening is intelligently adjusted according to the actual operating conditions of the heating element to avoid excessive heat dissipation or ineffective heat dissipation of the heat dissipation system.

[0074] Since the cooling water channel of the vehicle-mounted power supply is connected to the cooling water channel of the corresponding vehicle and installed in a circulation system, the coolant flow and coolant temperature in the cooling water channel of the vehicle-mounted power supply are affected by the entire circulation system. The heat dissipation system also includes an additional cooling module, which is connected to the cooling water channel module through a control valve module. The additional cooling module includes a circulating water channel, a circulating pump and a refrigeration device. The refrigeration device acts on the circulating water channel to control the temperature of the coolant in the circulating water channel. The circulating pump is used to allow the coolant in the circulating water channel to enter n cooling water channels. The refrigeration method of the refrigeration device is not limited here, and thermoelectric refrigeration or compressor refrigeration can be used. In addition, the additional cooling module may include a refrigeration device that directly acts on the cooling water channel. The refrigeration device may be a heat-conducting fin, so that the cost of the circulating pump can be saved, and only the refrigeration power needs to be adjusted.

[0075] Furthermore, the heat dissipation method provided in the embodiment of the present application may also include the following steps:

[0076] Step S501: within a third preset time period, determining c temperatures among the temperatures of the m heating elements that are higher than the corresponding first temperature thresholds among the m first temperature thresholds; the start time of the third preset time period is later than the end time of the first preset time period; c is a natural number less than or equal to m;

[0077] Step S502: determining c second heating elements corresponding to c temperatures;

[0078] Step S503: determining the difference between c temperatures and the corresponding first temperature threshold among the m first temperature thresholds, and obtaining c second temperature difference values; each second temperature difference value corresponds to a second heating element;

[0079] Step S504: determining the third heat dissipation requirement score corresponding to each of the c second temperature difference values ​​based on a preset second corresponding relationship, and obtaining c third heat dissipation requirement scores; the second corresponding relationship is used to reflect the mapping relationship between the c second temperature difference values ​​and the c third heat dissipation requirement scores;

[0080] Step S505: determining the refrigeration power of the refrigeration device based on the c third heat dissipation demand scores and the preset third corresponding relationship to obtain the first refrigeration power; the third corresponding relationship is used to reflect the mapping relationship between the c third heat dissipation demand scores and the first refrigeration power;

[0081] Step S506: determining a target second cooling water channel among the n cooling water channels and a target rotation speed of a circulating pump based on the c third heat dissipation demand scores; the target rotation speed is used to allow the coolant in the circulating water channel to enter the target second cooling water channel first;

[0082] Step S507: controlling the refrigeration device to operate at the first refrigeration power, and controlling the circulating pump to operate at the target speed, so that the temperatures of the c second heating elements are lower than the corresponding first temperature thresholds among the m first temperature thresholds.

[0083] In a possible embodiment, within the third preset time period, if there is a heating element with a temperature higher than the first temperature threshold, it indicates that the heat dissipation demand of the vehicle power supply cannot be met by adjusting the valve opening alone. At this time, c temperatures of the m heating elements that are higher than the corresponding first temperature thresholds of the m first temperature thresholds are determined, wherein the start time of the third preset time period is later than the end time of the first preset time period, the third preset time period may be consistent with the second preset time period, or may be after the second preset time period, c is a natural number less than or equal to m, and c second heating elements corresponding to the c temperatures are determined, and then the difference between the c temperatures and the corresponding first temperature threshold of the m first temperature thresholds is determined to obtain c second temperature differences, each second temperature difference corresponds to a second heating element, and a third heat dissipation demand score corresponding to each second temperature difference of the c second temperature differences is determined based on a preset second corresponding relationship to obtain c third heat dissipation demand scores, wherein the second corresponding relationship is used to reflect the mapping relationship between the c second temperature differences and the c third heat dissipation demand scores, and the determination method of the third heat dissipation demand score may be consistent with the heat dissipation method of the first heat dissipation demand score. The refrigeration power of the refrigeration device is determined based on c third heat dissipation demand scores and a preset third corresponding relationship to obtain a first refrigeration power. The third corresponding relationship is used to reflect the mapping relationship between the c third heat dissipation demand scores and the first refrigeration power. The refrigeration power can be determined according to the sum of the c third heat dissipation demand scores, or according to the maximum value of the third heat dissipation demand scores. The target second cooling water channel among the n cooling water channels and the target speed of the circulating pump are determined based on the c third heat dissipation demand scores, wherein the target speed is used to allow the coolant in the circulating water channel to enter the target second cooling water channel first, control the refrigeration device to operate at the first refrigeration power, and control the circulating pump to operate at the target speed so that the temperature of the c second heating elements is lower than the corresponding first temperature threshold among the m first temperature thresholds. In the embodiment of the present application, when the regulating valve opening cannot meet the heat dissipation demand of the on-board power supply, the heat dissipation of the on-board power supply is achieved by an additional cooling module.

[0084] Optionally, step S506, determining a target second cooling water channel among the n cooling water channels and a target rotation speed of a circulating pump based on the c third heat dissipation demand scores, may include the following steps:

[0085] Step S601: determining d second cooling water channels from n cooling water channels based on the heat dissipation correspondence and c second heating elements; d is a natural number less than or equal to n;

[0086] Step S602: determining a fourth heat dissipation requirement score of each of the d second cooling water channels based on the c third heat dissipation requirement scores, to obtain d fourth heat dissipation requirement scores;

[0087] Step S603: taking the second cooling water channel corresponding to the maximum value among the d fourth heat dissipation demand scores as the target second cooling water channel;

[0088] Step S604: acquiring the height of the target second cooling water channel to obtain a target height;

[0089] Step S605: determining the target speed based on the target height and a preset fourth corresponding relationship, where the fourth corresponding relationship is used to reflect the mapping relationship between the target height and the target speed.

[0090] In a possible embodiment, d second cooling water channels are determined from n cooling water channels based on the heat dissipation correspondence and c second heating elements, where d is a natural number less than or equal to n, and the d second cooling water channels are cooling water channels among the n cooling water channels that can dissipate heat for the c second heating elements. In addition, when determining the d second cooling water channels, they can be determined not only based on the heat dissipation correspondence, but also based on the dynamic correlation characteristics of heat transfer between different heating elements and each cooling water channel under different working conditions, and dynamically determine the d second cooling water channels with the strongest correlation with the c second heating elements based on actual operating data. For example, when the operating frequency of a heating element changes, its heat dissipation mode will also change, and the matching cooling water channel combination can be adjusted in time through real-time data analysis.

[0091] In a possible embodiment, the fourth heat dissipation demand score of each of the d second cooling water channels is determined based on the c third heat dissipation demand scores to obtain d fourth heat dissipation demand scores. The second heat dissipation demand score of each first cooling water channel may be the sum or maximum value of the first heat dissipation demand scores of at least one first heating element corresponding to the first cooling water channel. When determining the fourth heat dissipation demand score of each second cooling water channel, in addition to the c third heat dissipation demand scores, the fourth heat dissipation demand score is also corrected and adjusted based on factors such as the current coolant temperature rise rate, pressure drop change, and thermal interference degree between the second cooling water channel and the adjacent cooling water channel. For example, if the coolant temperature rise rate of a second cooling water channel is too fast, it means that its heat dissipation burden is heavy, and its fourth heat dissipation demand score is increased accordingly. If there is thermal interference with the adjacent cooling water channel resulting in local heat accumulation, the score is also adjusted. When the fourth heat dissipation demand score is related to multiple parameters, a preset fuzzy logic algorithm is used to determine the complex nonlinear relationship between the multiple parameters and the fourth heat dissipation demand score, and the weight of each parameter can be determined according to the operating mode and environmental conditions of the vehicle power supply. For example, in a high temperature environment, the heat dissipation mainly faces the problem of too fast temperature rise of the coolant, and the weight of the coolant temperature rise rate increases. In the high load operation mode, more emphasis is placed on meeting the high-intensity heat dissipation needs of the heating elements, and the weight of the third heat dissipation demand score is relatively increased.

[0092] In a possible embodiment, the second cooling water channel corresponding to the maximum value of the d fourth heat dissipation demand scores is used as the target second cooling water channel, and the height of the target second cooling water channel is obtained to obtain the target height, and the target speed is determined based on the target height and a preset fourth corresponding relationship. The target speed is used to control the circulating pump so that the coolant in the circulating water channel preferentially enters the target second cooling water channel, and the fourth corresponding relationship is used to reflect the mapping relationship between the target height and the target speed.

[0093] Optionally, the heat dissipation method provided in the embodiment of the present application may further include the following steps:

[0094] Step S701: within a fourth preset time period, if the temperatures of the m heating elements are all lower than the corresponding second temperature thresholds among the m second temperature thresholds, reducing the first cooling power to obtain the second cooling power; the start time of the fourth preset time period is later than the end time of the third preset time period;

[0095] Step S702: controlling the refrigeration device to cool the m heating elements at a second refrigeration power;

[0096] Step S703: if at least one of the temperatures of the m heating elements is higher than the corresponding first temperature threshold among the m first temperature thresholds, the first cooling power is increased to obtain a third cooling power;

[0097] Step S704: controlling the refrigeration device to cool the m heating elements at a third refrigeration power.

[0098] In a possible embodiment, within a fourth preset time period, if the temperatures of the m heating elements are all lower than the corresponding second temperature threshold among the m second temperature thresholds, the first cooling power is reduced to obtain the second cooling power, wherein the start time of the fourth preset time period is later than the end time of the third preset time period, and the refrigeration device is controlled to cool the m heating elements with the second cooling power, and accordingly, if at least one of the temperatures of the m heating elements is higher than the corresponding first temperature threshold among the m first temperature thresholds, the first cooling power is increased to obtain the third cooling power, and the refrigeration device is controlled to cool the m heating elements with the third cooling power. In the embodiment of the present application, the cooling power of the refrigeration device is intelligently regulated according to the temperature of the heating element, thereby avoiding excessive heat dissipation or ineffective heat dissipation of the heat dissipation system.

[0099] In one possible embodiment, see Figure 2A , Figure 2A : is a schematic diagram of the overall structure of a heat dissipation system provided by an embodiment of the present application. The heat dissipation system of the vehicle power supply in the figure is composed of the following four parts: a shell, a cooling water channel module, a control valve module and an additional cooling module, wherein the shell is composed of an outer shell and a water channel support frame. Figure 2B , Figure 2B This is a schematic diagram of the decomposed structure of a heat dissipation system provided by an embodiment of the present application. In the figure, reference numeral 1 is a water inlet pipe, reference numeral 2 is a control valve module, reference numeral 3 is a connection port between the control valve module and the cooling water channel module, and the connection port is respectively connected to each inlet switch and each cooling water channel in the control valve module, reference numeral 4 is a cooling water channel module, reference numeral 5 is a water outlet, reference numeral 6 is a whole machine housing, and reference numeral 7 is a circulating water channel. Figure 2C , Figure 2C It is a schematic diagram of the cross-sectional structure of a heat dissipation system provided in an embodiment of the present application. In the figure, the space in the middle of the casing is a space for placing the transformer and pouring the potting glue. Reference numeral 8 is a cooling water channel module placed on the outside of the water channel support frame. The outside of the support frame is outside the space for placing the transformer and is used to dissipate heat for the field effect tube attached to the outer wall. Reference numeral 9 is a cooling water channel module placed on the inside of the support frame and is used to dissipate heat for the transformer and other internal components. Reference numeral 10 is a circulating pump.

[0100] Further, see Figure 3A , Figure 3AThis is an overall flow chart of a precise heat dissipation process provided by an embodiment of the present application. State 1, State 2 and State 3 in the overall flow chart are three operating states. State 1 means that the component monitoring temperature is less than the derating temperature and the difference exceeds 5°C. State 2 means that the component monitoring temperature is less than the derating temperature but the difference with the derating temperature is within 5°C. State 3 means that the component monitoring temperature exceeds the derating temperature. Figure 3B , Figure 3B is a supplementary flow chart of an accurate heat dissipation process provided by an embodiment of the present application, for Figure 3A The control process of the dotted box part is supplemented. Due to the different speeds of the circulating pump and the different water flow rates, the initial speeds of the circulating liquid connected to the control valve are different. When the speed is high, the coolant flow rate is fast, and most of the coolant rushes to the top cooling water channel. When the speed is small, the coolant flow rate is slow, and most of the coolant enters the cooling water channel below. In the embodiment of the present application, the number of temperature measuring points is 3 for illustration. Temperature measuring points 1, 2 and 3 are respectively arranged near the heating components close to the water channel in the upper, middle and lower parts of the vehicle power cooling system. The temperature measuring points are arranged at a height of temperature measuring point 1 higher than temperature measuring point 2, and temperature measuring point 2 higher than temperature measuring point 3. The speed of the circulating pump is that the speed r1 is greater than the speed r2, and the speed r2 is greater than the speed r3.

[0101] Specifically, in the heat dissipation system, a temperature sensing package module is placed at the component close to the water channel. The temperature of the heat-generating components is monitored by the temperature sensing package module and fed back to the control valve module in real time. When the vehicle-mounted power supply starts to run, the coolant enters the heat dissipation system through the control valve module. At this time, the opening of each water channel is the initial valve opening, and each component is powered on and generates heat, and the temperature rises. The temperature sensing package module transmits the monitored temperature information to the control valve module, and the current temperature rise state is determined by the control valve module. When it is in state 1 and state 2, the current working condition of the heat dissipation system is maintained. When it is in state 3, the cooling water channel corresponding to the temperature measuring point reaching state 3 is determined by the control valve module, and the size of each water channel opening is adjusted to distribute the flow of the coolant entering the vehicle-mounted power supply, so that the cooling water channel reaching state 3 is allocated the maximum flow. When the flow increases, the flow rate increases accordingly, and the temperature of the components decreases accordingly, and the first cooling stage is entered at this time.

[0102] In the first cooling stage, the temperature of the components drops. When the temperature drops to state 2, the cooling system maintains the current operating condition. When the temperature drops to state 1, the water channel inlet size is regulated by the control valve module until the monitored temperature becomes state 2. Then the regulation is stopped and the current operating condition is maintained. When the temperature is state 3, the circulation pump is controlled by the control valve module to start powering on, and the device enters the second stage of enhanced cooling.

[0103] In the second stage of enhanced heat dissipation, after the circulation pump starts running, the temperature of the flowing medium decreases under the action of the refrigeration device. When the component temperature drops to state 2, the cooling system maintains the current operating condition. When the component temperature drops to state 1, the cooling power is reduced by regulation to suppress the cooling effect. When the temperature reaches state 2, the regulation is stopped and the cooling system maintains the current operating condition. When the component temperature is state 3, the cooling power is increased by regulation to improve the cooling effect. When the temperature reaches state 2, the regulation is stopped and the cooling system maintains the current operating condition.

[0104] During the second stage of enhanced heat dissipation, the control valve module also monitors the position of the high temperature point, sets the rated speed of the circulating pump to r2, and when the high temperature device is at or near the temperature measuring point 1, increases the power of the circulating pump to make its speed reach r1. At this time, the initial speed of the circulating fluid connected to the control valve module is relatively high, and a large amount of low-temperature coolant first enters the cooling water channel at the temperature measuring point 1. When the high temperature device is at or near the temperature measuring point 2, the circulating pump is operated at the rated power, and the speed reaches r2. At this time, the initial speed of the circulating fluid connected to the control valve is reduced, and a large amount of low-temperature coolant first enters the cooling water channel at the temperature measuring point 2. When the high temperature device is at or near the temperature measuring point 3, reduces the power of the circulating pump to make its operating power lower than the rated power, and the speed reaches r3. At this time, the initial speed of the circulating fluid connected to the control valve is relatively low, and a large amount of low-temperature coolant first enters the cooling water channel at the temperature measuring point 3. In the embodiment of the present application, the above control logic can make local temperature control more accurate and rapid.

[0105] Furthermore, the cooling water channel of the cooling water channel module in the embodiment of the present application can be a split water channel, which is divided into an inner water channel and an outer water channel. Different heat dissipation intensities can be set for the transformer area and the outer field effect tube area. If there is no heat dissipation demand in a certain place, the heat dissipation water channel can be removed to reduce manufacturing costs.

[0106] In the embodiment of the present application, considering that the heat dissipation system is affected by the overall circulation system, there may be a situation where the liquid cooling temperature is too high to meet the heat dissipation requirements. Therefore, an external refrigeration device is provided. When this happens, the refrigeration equipment is turned on and connected to the control valve to enter the entire liquid cooling cycle to cool the circulating coolant to meet the heat dissipation requirements.

[0107] In summary, in the embodiment of the present application, the temperature of each heating element in the m heating elements is first obtained through the temperature sensing package module to obtain m temperatures, and the first temperature threshold of each heating element in the m heating elements is obtained to obtain m first temperature thresholds. Then, based on the first position of each heating element in the m heating elements, the second position of each cooling water channel in the n cooling water channels, and the contact correspondence between the m heating elements and the n cooling water channels, the heat dissipation correspondence between the m heating elements and the n cooling water channels is determined, and n initial valve openings are determined based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the corresponding cooling water channels in the n cooling water channels. The flow rate of the coolant, within the first preset time period, if the m temperatures are all lower than or equal to the corresponding first temperature threshold among the m first temperature thresholds, the control valve module is used to control the n cooling water channels to dissipate the heat of the m heating elements with the corresponding initial valve opening among the n initial valve openings, and if at least one temperature among the m temperatures is higher than the corresponding first temperature threshold among the m first temperature thresholds, the n initial valve openings are adjusted to obtain the n first valve openings, and the control valve module is used to control the n cooling water channels to dissipate the heat of the m heating elements with the corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than the corresponding first temperature threshold among the m first temperature thresholds. Thus, by obtaining the temperatures and first temperature thresholds of the m heating elements and determining the heat dissipation correspondence between the m heating elements and the n cooling water channels, the flow rate of the coolant in the corresponding cooling water channels can be adjusted when multiple components of the vehicle power supply are powered on and running, so as to meet the heat dissipation requirements of multiple heating components and improve the heat dissipation efficiency.

[0108] The method of the embodiment of the present invention is described in detail above, and the device of the embodiment of the present invention is provided below.

[0109] See also Figure 4 , Figure 4 Schematic diagram of the structure of a heat dissipation device provided in an embodiment of the present application. The heat dissipation device 800 is applied to the heat dissipation system of the vehicle power supply, the vehicle power supply includes m heating elements, m is a positive integer, the heat dissipation system includes a temperature sensing package module, a cooling water channel module and a control valve module, the cooling water channel module includes n cooling water channels, each heating element corresponds to one or more cooling water channels, n is a positive integer, the heat dissipation system dissipates the m heating elements through the coolant in the n cooling water channels, and the heat dissipation device 800 includes an acquisition unit 801 and a processing unit 802;

[0110] An acquisition unit 801 is used to acquire the temperature of each of the m heating elements through a temperature sensing package module to obtain m temperatures;

[0111] Obtaining a first temperature threshold of each heating element of the m heating elements to obtain m first temperature thresholds;

[0112] A processing unit 802 is used to determine a heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on a first position of each of the m heat-generating elements, a second position of each of the n cooling water channels, and a contact correspondence between the m heat-generating elements and the n cooling water channels;

[0113] Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels;

[0114] In a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings;

[0115] If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, adjusting the n initial valve openings to obtain n first valve openings;

[0116] The control valve module controls n cooling water channels to dissipate heat for m heating elements at corresponding first valve openings among n first valve openings, so that the m temperatures are not higher than corresponding first temperature thresholds among m first temperature thresholds.

[0117] In a possible embodiment, in determining n initial valve openings based on the heat dissipation correspondence, the processing unit 802 is specifically configured to:

[0118] Acquire historical heating data of each heating element among the m heating elements to obtain m historical heating data;

[0119] Determine a heating feature of each of the m heating elements based on the m historical heating data, and obtain m heating features, wherein each of the m heating features is used to reflect at least one of the following features of the heating element corresponding to the heating feature: heating tendency, thermal sensitivity, thermal response speed, and heating threshold;

[0120] The initial valve opening of each of the n cooling water channels is determined based on the heat dissipation correspondence and the m heating characteristics to obtain n initial valve openings.

[0121] In a possible embodiment, in terms of regulating n initial valve openings to obtain n first valve openings, the processing unit 802 is specifically configured to:

[0122] Determine a temperatures among the m temperatures that are higher than the corresponding first temperature thresholds among the m first temperature thresholds; a is a natural number less than or equal to m;

[0123] Determine a first heating elements corresponding to a temperatures;

[0124] Determining b first cooling water channels from n cooling water channels based on the heat dissipation correspondence and a first heating elements; b is a natural number less than or equal to n;

[0125] Determine the difference between a temperature and a corresponding first temperature threshold among m first temperature thresholds to obtain a first temperature difference values; each first temperature difference value corresponds to a first heating element;

[0126] Determine a first heat dissipation requirement score corresponding to each of the a first temperature difference values ​​based on a preset first corresponding relationship, and obtain a first heat dissipation requirement scores; the first corresponding relationship is used to reflect the mapping relationship between the a first temperature difference values ​​and the a first heat dissipation requirement scores;

[0127] Determine a second heat dissipation requirement score for each of the b first cooling water channels based on the a first heat dissipation requirement scores to obtain b second heat dissipation requirement scores;

[0128] The first cooling water channel corresponding to the maximum value among the b second heat dissipation demand scores is used as the target first cooling water channel;

[0129] Based on the b second heat dissipation demand scores, n initial valve openings are regulated to obtain n first valve openings, and the n first valve openings are used to maximize the flow rate of the coolant in the target first cooling water channel.

[0130] In a possible embodiment, after controlling the n cooling water channels to dissipate heat for the m heating elements at corresponding first valve openings among the n first valve openings through the control valve module, the processing unit 802 is further configured to:

[0131] In a second preset time period, a second temperature threshold of each heating element among the m heating elements is obtained to obtain m second temperature thresholds, each of the m second temperature thresholds being lower than a corresponding first temperature threshold among the m first temperature thresholds; a start time of the second preset time period is later than an end time of the first preset time period;

[0132] If the temperature of each of the m heating elements is lower than the corresponding second temperature threshold among the m second temperature thresholds, adjusting the openings of the n first valves to obtain n second valve openings;

[0133] The control valve module is used to control n cooling water channels to dissipate heat for m heating elements at corresponding second valve openings among n second valve openings, so that the temperature of the m heating elements is between corresponding first temperature thresholds among m first temperature thresholds and corresponding second temperature thresholds among m second temperature thresholds.

[0134] In a possible embodiment, the heat dissipation system further includes an additional cooling module, which is connected to the cooling water channel module through the control valve module, and the additional cooling module includes a circulating water channel, a circulating pump, and a refrigeration device, the refrigeration device acts on the circulating water channel to control the temperature of the coolant in the circulating water channel, the circulating pump is used to allow the coolant in the circulating water channel to enter the n cooling water channels, and the processing unit 802 is further used to:

[0135] In a third preset time period, c temperatures among the temperatures of the m heating elements that are higher than the corresponding first temperature thresholds among the m first temperature thresholds are determined; the start time of the third preset time period is later than the end time of the first preset time period; c is a natural number less than or equal to m;

[0136] Determine c second heating elements corresponding to c temperatures;

[0137] Determine the difference between c temperatures and a corresponding first temperature threshold among the m first temperature thresholds to obtain c second temperature difference values; each second temperature difference value corresponds to a second heating element;

[0138] Determine the third heat dissipation requirement score corresponding to each of the c second temperature difference values ​​based on the preset second corresponding relationship, and obtain c third heat dissipation requirement scores; the second corresponding relationship is used to reflect the mapping relationship between the c second temperature differences and the c third heat dissipation requirement scores;

[0139] Determine the refrigeration power of the refrigeration device based on the c third heat dissipation demand scores and the preset third corresponding relationship to obtain the first refrigeration power; the third corresponding relationship is used to reflect the mapping relationship between the c third heat dissipation demand scores and the first refrigeration power;

[0140] Determine a target second cooling water channel among the n cooling water channels and a target speed of a circulating pump based on the c third heat dissipation demand scores; the target speed is used to allow the coolant in the circulating water channel to enter the target second cooling water channel first;

[0141] The refrigeration device is controlled to operate at a first refrigeration power, and the circulation pump is controlled to operate at a target speed, so that the temperatures of the c second heating elements are lower than corresponding first temperature thresholds among the m first temperature thresholds.

[0142] In a possible embodiment, in determining the target second cooling water channel among the n cooling water channels and the target rotation speed of the circulating pump based on the c third heat dissipation demand scores, the processing unit 802 is specifically configured to:

[0143] Determining d second cooling water channels from n cooling water channels based on the heat dissipation correspondence and the c second heating elements; d is a natural number less than or equal to n;

[0144] Determine a fourth heat dissipation requirement score of each of the d second cooling water channels based on the c third heat dissipation requirement scores to obtain d fourth heat dissipation requirement scores;

[0145] The second cooling water channel corresponding to the maximum value among the d fourth heat dissipation demand scores is used as the target second cooling water channel;

[0146] Acquire the height of the target second cooling water channel to obtain the target height;

[0147] The target speed is determined based on the target altitude and a preset fourth corresponding relationship, where the fourth corresponding relationship is used to reflect a mapping relationship between the target altitude and the target speed.

[0148] In a possible embodiment, the processing unit 802 is further configured to:

[0149] In a fourth preset time period, if the temperatures of the m heating elements are all lower than the corresponding second temperature thresholds among the m second temperature thresholds, the first cooling power is reduced to obtain the second cooling power; the start time of the fourth preset time period is later than the end time of the third preset time period;

[0150] Controlling the refrigeration device to cool the m heating elements at a second refrigeration power;

[0151] If at least one of the temperatures of the m heating elements is higher than a corresponding first temperature threshold among the m first temperature thresholds, the first cooling power is increased to obtain a third cooling power;

[0152] The refrigeration device is controlled to cool the m heating elements at a third refrigeration power.

[0153] In a possible embodiment, the vehicle-mounted power supply also includes a water channel support frame, the n cooling water channels adopt a split water channel design, the cross-sectional area of ​​each of the n cooling water channels is consistent, the water channel support frame is used to support the n cooling water channels, a transformer area and a field effect tube area are provided in the vehicle-mounted power supply, the water channel support frame divides the n cooling water channels into an inner water channel and an outer water channel, the inner water channel is used to dissipate heat for the heating elements located in the transformer area among the m heating elements, and the outer water channel is used to dissipate heat for the heating elements located in the field effect tube area among the m heating elements.

[0154] See also Figure 5 , Figure 5 Schematic diagram of the structure of an electronic device provided in an embodiment of the present application. Figure 5As shown, the electronic device 900 includes a transceiver 901, a processor 902 and a memory 903, which are connected via a bus 904. The memory 903 is used to store computer programs and data, and can transmit the data stored in the memory 903 to the processor 902. The electronic device can be the above-mentioned heat dissipation device, and the processor 902 can be the above-mentioned acquisition unit 801 and processing unit 802.

[0155] The processor 902 is used to read the computer program in the memory 903 and perform the following operations:

[0156] The temperature of each of the m heating elements is obtained by using the temperature sensing package module to obtain m temperatures;

[0157] Obtaining a first temperature threshold of each heating element of the m heating elements to obtain m first temperature thresholds;

[0158] Determining a heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on a first position of each of the m heat-generating elements, a second position of each of the n cooling water channels, and a contact correspondence between the m heat-generating elements and the n cooling water channels;

[0159] Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels;

[0160] In a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings;

[0161] If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, adjusting the n initial valve openings to obtain n first valve openings;

[0162] The control valve module controls n cooling water channels to dissipate heat for m heating elements at corresponding first valve openings among n first valve openings, so that the m temperatures are not higher than corresponding first temperature thresholds among m first temperature thresholds.

[0163] In a possible embodiment, in determining n initial valve openings based on the heat dissipation correspondence, the processor 902 is specifically configured to perform the following operations:

[0164] Acquire historical heating data of each heating element among the m heating elements to obtain m historical heating data;

[0165] Determine a heating feature of each of the m heating elements based on the m historical heating data, and obtain m heating features, wherein each of the m heating features is used to reflect at least one of the following features of the heating element corresponding to the heating feature: heating tendency, thermal sensitivity, thermal response speed, and heating threshold;

[0166] The initial valve opening of each of the n cooling water channels is determined based on the heat dissipation correspondence and the m heating characteristics to obtain n initial valve openings.

[0167] In a possible embodiment, in terms of adjusting the n initial valve openings to obtain the n first valve openings, the processor 902 is specifically configured to perform the following operations:

[0168] Determine a temperatures among the m temperatures that are higher than the corresponding first temperature thresholds among the m first temperature thresholds; a is a natural number less than or equal to m;

[0169] Determine a first heating elements corresponding to a temperatures;

[0170] Determining b first cooling water channels from n cooling water channels based on the heat dissipation correspondence and a first heating elements; b is a natural number less than or equal to n;

[0171] Determine the difference between a temperature and a corresponding first temperature threshold among m first temperature thresholds to obtain a first temperature difference values; each first temperature difference value corresponds to a first heating element;

[0172] Determine a first heat dissipation requirement score corresponding to each of the a first temperature difference values ​​based on a preset first corresponding relationship, and obtain a first heat dissipation requirement scores; the first corresponding relationship is used to reflect the mapping relationship between the a first temperature difference values ​​and the a first heat dissipation requirement scores;

[0173] Determine a second heat dissipation requirement score for each of the b first cooling water channels based on the a first heat dissipation requirement scores to obtain b second heat dissipation requirement scores;

[0174] The first cooling water channel corresponding to the maximum value among the b second heat dissipation demand scores is used as the target first cooling water channel;

[0175] Based on the b second heat dissipation demand scores, n initial valve openings are regulated to obtain n first valve openings, and the n first valve openings are used to maximize the flow rate of the coolant in the target first cooling water channel.

[0176] In a possible embodiment, after controlling the n cooling water channels to dissipate heat for the m heating elements at corresponding first valve openings among the n first valve openings through the control valve module, the processor 902 is further configured to perform the following operations:

[0177] In a second preset time period, a second temperature threshold of each heating element among the m heating elements is obtained to obtain m second temperature thresholds, each of the m second temperature thresholds being lower than a corresponding first temperature threshold among the m first temperature thresholds; a start time of the second preset time period is later than an end time of the first preset time period;

[0178] If the temperature of each of the m heating elements is lower than the corresponding second temperature threshold among the m second temperature thresholds, adjusting the openings of the n first valves to obtain n second valve openings;

[0179] The control valve module is used to control n cooling water channels to dissipate heat for m heating elements at corresponding second valve openings among n second valve openings, so that the temperature of the m heating elements is between corresponding first temperature thresholds among m first temperature thresholds and corresponding second temperature thresholds among m second temperature thresholds.

[0180] In a possible embodiment, the heat dissipation system further includes an additional cooling module, which is connected to the cooling water channel module through the control valve module, and the additional cooling module includes a circulating water channel, a circulating pump, and a refrigeration device, the refrigeration device acts on the circulating water channel to control the temperature of the coolant in the circulating water channel, and the circulating pump is used to allow the coolant in the circulating water channel to enter the n cooling water channels, and the processor 902 is further used to perform the following operations:

[0181] In a third preset time period, c temperatures among the temperatures of the m heating elements that are higher than the corresponding first temperature thresholds among the m first temperature thresholds are determined; the start time of the third preset time period is later than the end time of the first preset time period; c is a natural number less than or equal to m;

[0182] Determine c second heating elements corresponding to c temperatures;

[0183] Determine the difference between c temperatures and a corresponding first temperature threshold among the m first temperature thresholds to obtain c second temperature difference values; each second temperature difference value corresponds to a second heating element;

[0184] Determine the third heat dissipation requirement score corresponding to each of the c second temperature difference values ​​based on the preset second corresponding relationship, and obtain c third heat dissipation requirement scores; the second corresponding relationship is used to reflect the mapping relationship between the c second temperature differences and the c third heat dissipation requirement scores;

[0185] Determine the refrigeration power of the refrigeration device based on the c third heat dissipation demand scores and the preset third corresponding relationship to obtain the first refrigeration power; the third corresponding relationship is used to reflect the mapping relationship between the c third heat dissipation demand scores and the first refrigeration power;

[0186] Determine a target second cooling water channel among the n cooling water channels and a target speed of a circulating pump based on the c third heat dissipation demand scores; the target speed is used to allow the coolant in the circulating water channel to enter the target second cooling water channel first;

[0187] The refrigeration device is controlled to operate at a first refrigeration power, and the circulation pump is controlled to operate at a target speed, so that the temperatures of the c second heating elements are lower than corresponding first temperature thresholds among the m first temperature thresholds.

[0188] In a possible embodiment, in determining the target second cooling water channel among the n cooling water channels and the target rotation speed of the circulating pump based on the c third heat dissipation demand scores, the processor 902 is specifically configured to perform the following operations:

[0189] Determining d second cooling water channels from n cooling water channels based on the heat dissipation correspondence and the c second heating elements; d is a natural number less than or equal to n;

[0190] Determine a fourth heat dissipation requirement score of each of the d second cooling water channels based on the c third heat dissipation requirement scores to obtain d fourth heat dissipation requirement scores;

[0191] The second cooling water channel corresponding to the maximum value among the d fourth heat dissipation demand scores is used as the target second cooling water channel;

[0192] Acquire the height of the target second cooling water channel to obtain the target height;

[0193] The target speed is determined based on the target altitude and a preset fourth corresponding relationship, where the fourth corresponding relationship is used to reflect a mapping relationship between the target altitude and the target speed.

[0194] In a possible embodiment, the processor 902 is further configured to perform the following operations:

[0195] In a fourth preset time period, if the temperatures of the m heating elements are all lower than the corresponding second temperature thresholds among the m second temperature thresholds, the first cooling power is reduced to obtain the second cooling power; the start time of the fourth preset time period is later than the end time of the third preset time period;

[0196] Controlling the refrigeration device to cool the m heating elements at a second refrigeration power;

[0197] If at least one of the temperatures of the m heating elements is higher than a corresponding first temperature threshold among the m first temperature thresholds, the first cooling power is increased to obtain a third cooling power;

[0198] The refrigeration device is controlled to cool the m heating elements at a third refrigeration power.

[0199] In a possible embodiment, the vehicle-mounted power supply also includes a water channel support frame, the n cooling water channels adopt a split water channel design, the cross-sectional area of ​​each of the n cooling water channels is consistent, the water channel support frame is used to support the n cooling water channels, a transformer area and a field effect tube area are provided in the vehicle-mounted power supply, the water channel support frame divides the n cooling water channels into an inner water channel and an outer water channel, the inner water channel is used to dissipate heat for the heating elements located in the transformer area among the m heating elements, and the outer water channel is used to dissipate heat for the heating elements located in the field effect tube area among the m heating elements.

[0200] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. The computer program is executed by a processor to implement part or all of the steps of any heat dissipation method recorded in the above method embodiments.

[0201] An embodiment of the present application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute part or all of the steps of any heat dissipation method recorded in the above method embodiments.

[0202] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0203] 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, reference can be made to the relevant descriptions of other embodiments.

[0204] In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the modules, which is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the device or module can be electrical or other forms.

[0205] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0206] In addition, each functional module in each embodiment of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The above integrated modules can be implemented in the form of hardware or software program modules.

[0207] If the integrated module is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk and other media that can store program codes.

[0208] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A heat dissipation method, characterized in that: A heat dissipation system applied to a vehicle-mounted power supply, the vehicle-mounted power supply includes m heating elements, m is a positive integer, the heat dissipation system includes a temperature sensing package module, a cooling water channel module and a control valve module, the cooling water channel module includes n cooling water channels, each heating element corresponds to one or more cooling water channels, n is a positive integer, the heat dissipation system dissipates the m heating elements through the coolant in the n cooling water channels, and the method includes: Acquire the temperature of each of the m heating elements through the temperature sensing package module to obtain m temperatures; Obtaining a first temperature threshold of each of the m heating elements to obtain m first temperature thresholds; Determining a heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on a first position of each of the m heat-generating elements, a second position of each of the n cooling water channels, and a contact correspondence between the m heat-generating elements and the n cooling water channels; Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels; Within a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings; If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, regulating the n initial valve openings to obtain n first valve openings; The control valve module controls the n cooling water channels to dissipate heat for the m heating elements at a corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than a corresponding first temperature threshold among the m first temperature thresholds.

2. The method according to claim 1, characterized in that The determining n initial valve openings based on the heat dissipation correspondence includes: Acquire historical heating data of each heating element in the m heating elements to obtain m historical heating data; Determine a heating feature of each of the m heating elements based on the m historical heating data to obtain m heating features, wherein each of the m heating features is used to reflect at least one of the following features of the heating element corresponding to the heating feature: heating tendency, thermal sensitivity, thermal response speed, and heating threshold; An initial valve opening of each of the n cooling water channels is determined based on the heat dissipation correspondence and the m heating characteristics to obtain the n initial valve openings.

3. The method according to claim 2, characterized in that The step of regulating the n initial valve openings to obtain n first valve openings includes: Determine a temperature among the m temperatures that is higher than a corresponding first temperature threshold among the m first temperature thresholds; a is a natural number less than or equal to m; Determine a first heating elements corresponding to the a temperatures; Determining b first cooling water channels from the n cooling water channels based on the heat dissipation correspondence and the a first heating elements; b is a natural number less than or equal to n; Determine the difference between the a temperature and a corresponding first temperature threshold among the m first temperature thresholds to obtain a first temperature difference values; each first temperature difference value corresponds to a first heating element; Determine a first heat dissipation requirement score corresponding to each of the a first temperature difference values ​​based on a preset first corresponding relationship, and obtain a first heat dissipation requirement scores; the first corresponding relationship is used to reflect the mapping relationship between the a first temperature difference values ​​and the a first heat dissipation requirement scores; Determine a second heat dissipation requirement score for each of the b first cooling water channels based on the a first heat dissipation requirement scores to obtain b second heat dissipation requirement scores; taking the first cooling water channel corresponding to the maximum value among the b second heat dissipation demand scores as the target first cooling water channel; The n initial valve openings are regulated based on the b second heat dissipation demand scores to obtain n first valve openings, where the n first valve openings are used to maximize the flow rate of the coolant in the target first cooling water channel.

4. The method according to any one of claims 1 to 3, characterized in that: After controlling the n cooling water channels to dissipate heat for the m heating elements at a corresponding first valve opening among the n first valve openings through the control valve module, the method further includes: In a second preset time period, a second temperature threshold of each of the m heating elements is obtained to obtain m second temperature thresholds, each of the m second temperature thresholds being lower than a corresponding first temperature threshold of the m first temperature thresholds; a start time of the second preset time period is later than an end time of the first preset time period; If the temperature of each of the m heating elements is lower than the corresponding second temperature threshold among the m second temperature thresholds, adjusting the n first valve openings to obtain n second valve openings; The control valve module controls the n cooling water channels to dissipate heat for the m heating elements at a corresponding second valve opening among the n second valve openings, so that the temperature of the m heating elements is between a corresponding first temperature threshold among the m first temperature thresholds and a corresponding second temperature threshold among the m second temperature thresholds.

5. The method according to any one of claims 1 to 3, characterized in that: The heat dissipation system further includes an additional cooling module, which is connected to the cooling water channel module through the control valve module, and includes a circulating water channel, a circulating pump and a refrigeration device, the refrigeration device acts on the circulating water channel to control the temperature of the coolant in the circulating water channel, and the circulating pump is used to allow the coolant in the circulating water channel to enter the n cooling water channels. The method further includes: In a third preset time period, determining c temperatures among the temperatures of the m heating elements that are higher than corresponding first temperature thresholds among the m first temperature thresholds; the start time of the third preset time period is later than the end time of the first preset time period; c is a natural number less than or equal to m; Determine c second heating elements corresponding to the c temperatures; Determine the difference between the c temperatures and a corresponding first temperature threshold among the m first temperature thresholds to obtain c second temperature difference values; each second temperature difference value corresponds to a second heating element; Determine a third heat dissipation requirement score corresponding to each of the c second temperature difference values ​​based on a preset second corresponding relationship, and obtain c third heat dissipation requirement scores; the second corresponding relationship is used to reflect the mapping relationship between the c second temperature difference values ​​and the c third heat dissipation requirement scores; Determine the refrigeration power of the refrigeration device based on the c third heat dissipation demand scores and a preset third corresponding relationship to obtain a first refrigeration power; the third corresponding relationship is used to reflect the mapping relationship between the c third heat dissipation demand scores and the first refrigeration power; Determine a target second cooling water channel among the n cooling water channels and a target rotation speed of the circulating pump based on the c third heat dissipation demand scores; the target rotation speed is used to make the coolant in the circulating water channel preferentially enter the target second cooling water channel; The refrigeration device is controlled to operate at the first refrigeration power, and the circulation pump is controlled to operate at the target speed, so that the temperatures of the c second heating elements are lower than the corresponding first temperature thresholds among the m first temperature thresholds.

6. The method according to claim 5, characterized in that The determining the target second cooling water channel among the n cooling water channels and the target rotation speed of the circulating pump based on the c third heat dissipation demand scores includes: Determining d second cooling water channels from the n cooling water channels based on the heat dissipation correspondence and the c second heating elements; d is a natural number less than or equal to n; Determine a fourth heat dissipation requirement score of each of the d second cooling water channels based on the c third heat dissipation requirement scores to obtain d fourth heat dissipation requirement scores; taking the second cooling water channel corresponding to the maximum value among the d fourth heat dissipation demand scores as the target second cooling water channel; Acquire the height of the target second cooling water channel to obtain a target height; The target speed is determined based on the target height and a preset fourth corresponding relationship, where the fourth corresponding relationship is used to reflect a mapping relationship between the target height and the target speed.

7. The method according to claim 5, characterized in that The method further comprises: In a fourth preset time period, if the temperatures of the m heating elements are all lower than the corresponding second temperature thresholds among the m second temperature thresholds, the first cooling power is reduced to obtain a second cooling power; the start time of the fourth preset time period is later than the end time of the third preset time period; controlling the refrigeration device to cool the m heating elements with the second refrigeration power; If at least one temperature among the temperatures of the m heating elements is higher than a corresponding first temperature threshold among the m first temperature thresholds, increasing the first cooling power to obtain a third cooling power; The refrigeration device is controlled to cool the m heating elements with the third refrigeration power.

8. The method according to any one of claims 1 to 3, characterized in that: The on-board power supply also includes a water channel support frame, the n cooling water channels adopt a split water channel design, the cross-sectional area of ​​each of the n cooling water channels is consistent, the water channel support frame is used to support the n cooling water channels, a transformer area and a field effect tube area are provided in the on-board power supply, the water channel support frame divides the n cooling water channels into an inner water channel and an outer water channel, the inner water channel is used to dissipate heat for the heating element located in the transformer area among the m heating elements, and the outer water channel is used to dissipate heat for the heating element located in the field effect tube area among the m heating elements.

9. A heat dissipation device, characterized in that: A heat dissipation system applied to a vehicle-mounted power supply, the vehicle-mounted power supply includes m heating elements, m is a positive integer, the heat dissipation system includes a temperature sensing package module, a cooling water channel module and a control valve module, the cooling water channel module includes n cooling water channels, each heating element corresponds to one or more cooling water channels, n is a positive integer, the heat dissipation system dissipates heat from the m heating elements through the coolant in the n cooling water channels, and the device includes an acquisition unit and a processing unit; The acquisition unit is used to acquire the temperature of each of the m heating elements through the temperature sensing package module to obtain m temperatures; Obtaining a first temperature threshold of each of the m heating elements to obtain m first temperature thresholds; The processing unit is used to determine the heat dissipation correspondence between the m heat-generating elements and the n cooling water channels based on the first position of each of the m heat-generating elements, the second position of each of the n cooling water channels, and the contact correspondence between the m heat-generating elements and the n cooling water channels; Determining n initial valve openings based on the heat dissipation correspondence, wherein the n initial valve openings are used to control the flow of coolant in corresponding cooling water channels among the n cooling water channels; Within a first preset time period, if the m temperatures are all lower than or equal to a corresponding first temperature threshold among the m first temperature thresholds, the control valve module controls the n cooling water channels to dissipate heat from the m heating elements at a corresponding initial valve opening among the n initial valve openings; If at least one temperature among the m temperatures is higher than a corresponding first temperature threshold among the m first temperature thresholds, regulating the n initial valve openings to obtain n first valve openings; The control valve module controls the n cooling water channels to dissipate heat for the m heating elements at a corresponding first valve opening among the n first valve openings, so that the m temperatures are not higher than a corresponding first temperature threshold among the m first temperature thresholds.

10. An electronic device, characterized in that: include: A processor and a memory, wherein the processor is connected to the memory, the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory, so that the electronic device executes the method according to any one of claims 1 to 8.

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