Heat dissipation mechanism and heat dissipation method for power supply

Abstract

The invention relates to a heat dissipation mechanism for a power supply and a heat dissipation method, the heat dissipation mechanism comprises a heat dissipation assembly, the heat dissipation assembly is arranged on the power supply, the heat dissipation assembly comprises an air cooling radiator, a circulation box, a plurality of cooling pipelines and a controller, a circulator is arranged in the circulation box, cooling liquid is injected into the circulation box, and the controller is connected with the air cooling radiator. Temperature detectors are respectively arranged in the plurality of cooling pipelines, the plurality of cooling pipelines are arranged in the power supply in a penetrating manner in a transverse and longitudinal staggered manner, and the plurality of cooling pipelines are respectively connected to the circulating box; and the controller is used for controlling the working state of the cooling pipeline according to the temperature signal fed back by the temperature detector. The power supply has the effects of improving the heat dissipation efficiency of the power supply and adapting to different temperature environments.

Description

Technical Field

[0001] The present application relates to the field of switching power supply heat dissipation technology, and in particular to a heat dissipation mechanism and a heat dissipation method for a power supply. Background Art

[0002] A power supply is usually composed of several battery cells connected in series or in parallel, or first in parallel and then in series, to meet capacity requirements and the output power requirements of external devices. However, since the internal components of the power supply (such as resistors, transistors) or battery cells will generate a certain internal resistance when current passes through, according to Joule's law, heat will be generated when current passes through the internal resistance, causing the power supply temperature to rise, which will have a certain impact on the power supply efficiency and safety performance.

[0003] In the prior art, common solutions to solve the problem of power supply heat dissipation mainly include natural heat dissipation, forced air cooling, and liquid cooling systems. Natural heat dissipation achieves better heat diffusion by increasing the surface area of ​​the radiator; forced air cooling relies on fans to blow away the heat and speed up the spread of heat; the liquid cooling system circulates the coolant in a closed pipe to remove the heat. In addition, there are some special designs such as enclosing the power supply in a large cabinet with a cooling system to ensure stable control of the entire ambient temperature. Although the above methods can improve the heat dissipation effect to a certain extent, local overtemperature problems may still occur when the power supply is working at high power.

[0004] Among the above-mentioned existing heat dissipation methods, natural heat dissipation is restricted by the design of the radiator and has limited effect under high-power working conditions; forced air cooling is prone to problems such as fan life and noise; the existing liquid cooling system usually requires a lot of maintenance work due to its complex structure, and cannot achieve effective adjustment when dealing with temperature differences in different areas of the power supply, resulting in generally low cooling efficiency. Summary of the invention

[0005] The purpose of the present application is to overcome the above technical problems and provide a heat dissipation mechanism and heat dissipation method for a power supply.

[0006] The present application provides a heat dissipation mechanism and heat dissipation method for a power supply using the following technical solutions: In a first aspect, a heat dissipation mechanism and heat dissipation method for a power supply include a heat dissipation component, wherein the heat dissipation component is arranged on the power supply, and the heat dissipation component includes an air-cooled radiator, a circulation box, a plurality of cooling pipes and a controller, wherein the circulation box is arranged on the air-cooled radiator, a circulator is arranged in the circulation box, and a coolant is injected into the circulation box, the circulator is used to adjust the circulation speed of the coolant, temperature detectors are respectively arranged in the plurality of cooling pipes, the plurality of cooling pipes are arranged in a horizontal and vertical staggered manner inside the power supply, and the plurality of cooling pipes are respectively connected to the circulation box, the air-cooled radiator is used to dissipate heat from the circulation box, and the controller is used to control the working state of the cooling pipe according to the temperature signal fed back by the temperature detector.

[0007] By adopting the above technical solution, since a number of cooling pipelines are provided inside the power supply, and a temperature detector is provided on any cooling pipeline, the temperature detector detects the temperature of the corresponding area inside the power supply. Through the cooperation of the temperature detector, the controller and the air-cooled radiator, the purpose of dissipating heat inside the power supply is achieved, which plays a positive guiding role in improving the heat dissipation efficiency of the power supply.

[0008] Preferably, it also includes a heating component, which includes a backup power supply and a heating component, the heating component is arranged on the circulation box, the backup power supply is arranged on the power supply, and the backup power supply is electrically connected to the power supply and the heating component, the backup power supply is used to supply power to the heating component, and the power supply is used to supply power to the backup power supply.

[0009] By adopting the above technical solution, the heating component is powered by a backup power supply. Since the heating component is arranged on the circulation box, the temperature of the coolant in the circulation box is increased, so that the power supply can respond quickly in a low temperature environment, reducing the probability of the power supply temperature being too low and affecting the normal operation of the power supply.

[0010] Preferably, any one of the cooling pipelines is independently provided with a start-stop controller, and the start-stop controller is electrically connected to the controller.

[0011] By adopting the above technical solution, since any cooling pipeline is independently provided with a start-stop controller, the working state of any start-stop controller can be controlled by the controller, thereby achieving the purpose of controlling the on-off of any cooling pipeline.

[0012] Preferably, the coolant is a non-conductive liquid.

[0013] By adopting the above technical solution, the coolant is a non-conductive liquid, which effectively reduces the risk of coolant leakage causing electrical short circuit of the power supply when the cooling pipeline is damaged, thereby enhancing the safety and reliability of the power supply radiator.

[0014] Preferably, the temperature rising component is configured as a graphene material temperature rising component.

[0015] By adopting the above technical solution, the graphene material heating element is used as the heating element. By utilizing the excellent thermal conductivity and electrothermal conversion efficiency of graphene, it can quickly heat up in a low temperature environment, improve the heating efficiency of the radiator in a low temperature environment, and enable the power supply to still operate normally in a low temperature environment.

[0016] Preferably, after the liquid outlet end of the cooling pipeline is passed through the interior of the power supply, it is bent along the outer wall of the power supply and finally connected to the circulation box, and a buffer gap is provided between the cooling pipeline and the outer wall of the power supply.

[0017] By adopting the above technical solution, the liquid outlet end of the cooling pipeline passes through the inside of the power supply and is finally connected to the circulation box, which is beneficial to enhancing the circulation efficiency of the coolant in the cooling pipeline. At the same time, a buffer gap is provided between the cooling pipeline and the outer wall of the power supply. When the power supply is impacted or acted upon by external force, the buffer gap has a certain buffering effect on the power supply, thereby reducing the probability of power supply damage or dangerous accidents occurring when the power supply is directly impacted or acted upon by external force.

[0018] In another aspect, a heat dissipation method for a power supply includes: S1. The temperature of the corresponding area inside the power supply is obtained by contacting the temperature detector in the radiator, and the detection data of the temperature detector is sent to the controller for analysis; S2. The controller controls the start-stop controller on one or more cooling pipes to start working according to the temperature analysis results, and adjusts the power of the circulator and the air-cooled radiator; S3. The temperature detector continuously detects the temperature of the corresponding area inside the power supply; S4. When the temperature inside the power supply returns to normal, the controller controls the start-stop controller to start synchronously and starts to dissipate heat synchronously at various locations inside the power supply.

[0019] By adopting the above technical solution, the heat dissipation method obtains the temperature of the corresponding area inside the power supply through the temperature detector in contact, and sends the temperature data to the controller for analysis. The controller controls the start-stop controller on one or more cooling pipelines to start working according to the temperature analysis results, and adjusts the power of the circulator and the air-cooled radiator. The temperature detector continuously detects the temperature of the corresponding area inside the power supply. When the temperature inside the power supply returns to normal, the controller controls the start-stop controller to start synchronously and start synchronous heat dissipation of various parts inside the power supply. This method of dynamically adjusting the working state of the cooling pipeline can more finely control the heat dissipation process, improve the heat dissipation efficiency, and is conducive to maintaining safe and stable operation of the power supply.

[0020] Preferably, in a low temperature environment, the controller starts the backup power supply to heat the heating component.

[0021] By adopting the above technical solution, the controller starts the backup power supply to heat the heating component in a low temperature environment, which effectively solves the problem of radiator startup and normal operation in a low temperature environment and improves the adaptability and reliability of the radiator in different ambient temperatures.

[0022] Preferably, the method also includes, when the temperature of a certain place or multiple areas inside the power supply exceeds a set value, the controller controls the start-stop controller located at one or more places to stop working, so as to enhance the cooling efficiency of one or more areas of the power supply.

[0023] By adopting the above technical solution, when the temperature of one or more areas inside the power supply exceeds the set value, the controller controls the start-stop controller located at the one or more locations to stop working, so that the coolant can only circulate along the cooling pipeline where the start-stop controller is in a working state, thereby enhancing the cooling efficiency of one or more areas of the power supply.

[0024] Preferably, the method further includes an emergency response function, which includes: A1. The corresponding temperature inside the power supply is continuously detected by the temperature detector. When the temperature of the corresponding area is higher than the set value for more than 1 minute and the heat dissipation component is in normal working state, the controller sends a control instruction to the power supply to reduce the power supply operation; A2. When the controller issues a control command, the timing starts. At this time, the heat dissipation component is in working state to cool down the corresponding area of ​​the power supply. When the power supply runs at reduced power for 30 seconds and the temperature of the corresponding area inside the power supply returns to the set value, the controller controls the power supply to run at full power again; If the temperature of the area corresponding to the power supply is still in an abnormal state after the power supply runs at reduced power for 30 seconds, the controller controls the power supply to stop working and controls the backup power supply to start to temporarily power the external equipment.

[0025] By adopting the above technical solution, the emergency response function can automatically reduce the power supply operation when the internal temperature of the power supply rises abnormally, so as to reduce the speed of heat generation inside the power supply, and cooperate with the heat dissipation component to effectively cool down. During this process, the power supply is continuously cooled by the heat dissipation component. When the internal temperature of the power supply returns to normal, the controller can control the power supply to run at full power again, thereby ensuring the safety and reliability of the power supply under abnormally high temperature conditions; if the internal temperature of the power supply has not returned to normal after 30 seconds, it means that there is an abnormality in the power supply. The controller will control the power supply to stop working, cut off the connection between the power supply and external devices, and enable the backup power supply to power the external devices, further ensuring the safety and continuity of the power supply.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The temperature detector detects the temperature of the corresponding area inside the power supply. Through the cooperation of the temperature detector, controller and air-cooled radiator, the purpose of dissipating heat inside the power supply is achieved, which plays a positive guiding role in improving the heat dissipation efficiency of the power supply; 2. The temperature-raising component is powered by the backup power supply to raise the temperature of the coolant in the circulation box and improve the response speed of the power supply in a low-temperature environment; 3. It has an emergency response function, which can automatically reduce the power supply when the internal temperature of the power supply rises abnormally. If the internal temperature of the power supply has not returned to normal after 30 seconds, it means that there is an abnormality in the power supply. The controller will control the power supply to stop working and cut off the connection between the power supply and external devices, thereby improving the safety performance of the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a heat dissipation mechanism for a power supply according to an embodiment of the present application.

[0028] Figure 2 It is a system principle block diagram among a controller, a backup power supply, a circulator, an air-cooled radiator, a start-stop controller, a temperature detector, a power supply and a temperature-raising component in a heat dissipation mechanism for a power supply in an embodiment of the present application.

[0029] Figure 3 It is a flowchart of a heat dissipation method for a power supply according to an embodiment of the present application.

[0030] Figure 4 It is a flowchart of the emergency handling function in a heat dissipation method for a power supply according to an embodiment of the present application.

[0031] Figure 5 It is a flowchart of a specific implementation method of a heat dissipation method for a power supply in an embodiment of the present application.

[0032] Explanation of the reference numerals: 1. heat dissipation component; 11. air-cooled radiator; 12. circulation box; 13. cooling pipeline; 2. power supply; 3. heating component; 31. backup power supply; 32. heating component; 4. start-stop controller; 5. buffer gap. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] First, the embodiment of the present application discloses a heat dissipation mechanism for a power source 2. Figure 1 and Figure 2 A heat dissipation mechanism for a power supply 2 includes a heat dissipation component 1, which is arranged on the power supply 2. The heat dissipation component 1 includes an air-cooled radiator 11, a circulation box 12, a plurality of cooling pipes 13 and a controller. The circulation box 12 is arranged on the air-cooled radiator 11. A circulator is arranged in the circulation box 12, and coolant is injected into the circulation box 12. The circulator is used to adjust the circulation speed of the coolant. Temperature detectors are respectively arranged in the plurality of cooling pipes 13. The plurality of cooling pipes 13 are criss-crossed and penetrated inside the power supply 2, and the plurality of cooling pipes 13 are respectively connected to the circulation box 12. The air-cooled radiator 11 is used to dissipate heat for the circulation box 12. The controller is used to control the working state of the cooling pipe 13 according to the temperature signal fed back by the temperature detector.

[0035] First of all, it should be explained that the power supply 2 described in the present embodiment is composed of a plurality of battery units connected to each other. The number of battery units can be increased or reduced according to the capacity requirements and the power supply requirements of the external devices. Since the composition and connection method of each battery unit are the same and their functions are the same, their quantity will not be explained here.

[0036] Specifically, the cooling pipe 13 is hollow inside, and both ends of the cooling pipe 13 are open, one end is a liquid inlet end, and the other end is a liquid outlet end. A cooling pipe 13 is provided between every two adjacent battery cells, and the spacing between every two adjacent cooling pipes 13 is the same, so that the areas where the two adjacent cooling pipes 13 can absorb heat from different battery cells are roughly the same.

[0037] Furthermore, after the liquid outlet end of the cooling pipeline 13 is inserted into the power source 2, it is bent along the outer wall of the power source 2 and finally connected to the circulation box 12, and a buffer gap 5 is provided between the cooling pipeline 13 and the outer wall of the power source 2. The cooling pipeline 13 is made of copper material, and the outer wall of the cooling pipeline 13 is sprayed with insulating paint to make it have electrical insulation ability. At the same time, the copper material has excellent mechanical properties, which makes it easy to bend it, and cracks are not easy to occur at the bend.

[0038] Therefore, when the liquid outlet end of the cooling pipeline 13 passes through the power supply 2, it is bent so that a certain space is formed between several cooling pipelines 13 and the outer wall of the power supply 2 to form a buffer gap 5. After the liquid outlet end of the cooling pipeline 13 passes through the inside of the power supply 2, it is finally connected to the circulation box 12, which is beneficial to enhance the circulation efficiency of the coolant in the cooling pipeline 13. At the same time, a buffer gap 5 is provided between the cooling pipeline 13 and the outer wall of the power supply 2. When the power supply 2 is hit or acted upon by external force, the buffer gap 5 has a certain buffering effect on the power supply 2, thereby reducing the probability of damage to the power supply 2 or a dangerous accident when the power supply 2 is directly hit or acted upon by external force.

[0039] Correspondingly, the temperature detector can be a temperature detection probe, and the installation and working methods of the temperature detectors on each cooling pipeline 13 are the same. Any one of the temperature detectors is selected below to describe it in detail. The temperature detector is installed on the cooling pipeline 13 between two adjacent groups of battery cells, and the temperature detector is electrically connected to the controller. The temperature between the two adjacent groups of battery cells is detected in real time by the temperature detector and sent to the controller.

[0040] Furthermore, the circulation box 12 is also made of copper material and is hollow inside, forming a space for storing coolant, while also having a certain degree of corrosion resistance, thereby reducing the probability of damage or cracks in the circulation box 12 causing the coolant to overflow along the circulation box 12. The liquid outlet and liquid inlet ends of the cooling pipeline 13 are fixedly connected to the circulation box 12 through a copper welding process.

[0041] At the same time, the circulator can be a liquid booster (a component used to increase the liquid flow rate, its specific composition and working principle are not described here). The circulator is installed inside the circulation box 12. The circulator is powered by the power supply 2 and is electrically connected to the controller. The working state of the circulator can be controlled by the controller.

[0042] Correspondingly, the circulation box 12 is fixedly connected to the air-cooled radiator 11, and the surface of the circulation box 12 is in a flat state. When the circulation box 12 is installed on the air-cooled radiator 11, the circulation box 12 fits the surface of the air-cooled radiator 11 to increase the heat dissipation efficiency of the air-cooled radiator 11.

[0043] In addition, the coolant is a non-conductive liquid, which effectively reduces the risk of coolant leakage causing an electrical short circuit of the power supply 2 when the cooling pipeline 13 is damaged, thereby enhancing the safety and reliability of the radiator of the power supply 2.

[0044] In the above description, it is also necessary to mention that the air-cooled radiator 11 is a component for heat dissipation. Through the cooperation of the fan and the base, the heat in the circulation box 12 is quickly dissipated. At the same time, the controller is composed of a main control chip, a circuit substrate and additional electronic components. The main control chip stores a control program to achieve the purpose of regulating the working state of the power supply 2.

[0045] At the same time, refer to Figure 1 and Figure 2 Any cooling pipeline 13 is independently provided with a start-stop controller 4, and the start-stop controller 4 is electrically connected to the controller.

[0046] Specifically, the start-stop controller 4 is configured as a micro-electrically controlled valve, and the opening and closing of the micro-electrically controlled valve can be controlled by the controller, thereby achieving the purpose of liquid circulation or cutoff in the corresponding cooling pipeline 13 .

[0047] Its function is that, since a start-stop controller 4 is provided on any cooling pipeline 13 , one of the start-stop controllers 4 can be controlled by the controller to work independently, or multiple start-stop controllers 4 can work simultaneously, so as to control several cooling pipelines 13 in an orderly manner.

[0048] Reference Figure 1 and Figure 2 , and also includes a heating component 3, the heating component 3 includes a backup power supply 31 and a heating component 32, the heating component 32 is arranged on the circulation box 12, the backup power supply 31 is arranged on the power supply 2, and the backup power supply 31 is electrically connected to the power supply 2 and the heating component 32, the backup power supply 31 is used to supply power to the heating component 32, and the power supply 2 is used to supply power to the backup power supply 31.

[0049] Specifically, the heating element 32 can be an electric heating wire (working on the principle of resistive heat). In the present embodiment, preferably, the heating element 32 is configured as a graphene material heating element. The graphene material heating element is used as the heating element 32. The excellent thermal conductivity and electrothermal conversion efficiency of graphene can be used to quickly heat up in a low temperature environment, thereby improving the heating efficiency of the radiator in a low temperature environment, and enabling the power supply 2 to still operate normally in a low temperature environment.

[0050] Therefore, the heating component 32 is powered by the backup power supply 31. Since the heating component 32 is arranged on the circulation box 12, the temperature of the coolant in the circulation box 12 is increased, so that the power supply 2 can respond quickly in a low temperature environment, reducing the probability of the power supply 2 being affected in its normal operation due to the excessively low temperature.

[0051] On the other hand, a heat dissipation method for power supply 2 is disclosed, referring to Figure 3 ,include: S1. The temperature of the corresponding area inside the power supply 2 is obtained by contacting the temperature detector in the radiator, and the detection data of the temperature detector is sent to the controller for analysis; S2. The controller controls the start and stop controller 4 on one or more cooling lines 13 according to the temperature analysis results to start working, and adjusts the power of the circulator and the air-cooled radiator 11; S3. The temperature detector continuously detects the temperature of the corresponding area inside the power supply 2; S4. When the internal temperature of the power supply 2 returns to normal, the controller controls the start-stop controller 4 to start synchronously, and starts to dissipate heat synchronously at various locations inside the power supply 2.

[0052] At the same time, in a low temperature environment, the controller starts the backup power supply 31 to heat the heating element 32, and the cooling liquid in the circulation box 12 is heated by the heating element 32, so that the temperature of the power supply 2 rises rapidly.

[0053] In addition, refer to Figure 4 , and also includes emergency response functions, which include: A1. The corresponding temperature inside the power supply 2 is continuously detected by the temperature detector. When the temperature of the corresponding area is higher than the set value for more than 1min (SI unit, minute) and the heat dissipation component 1 is in normal working state, the controller sends a control instruction to the power supply 2 to reduce the power of the power supply 2; A2. When the controller sends the control command, the timing starts. At this time, the heat dissipation component 1 is in Working state, to cool down the corresponding area of ​​power supply 2. When power supply 2 runs at reduced power for 30 seconds and the temperature of the corresponding area inside power supply 2 returns to the set value, the controller controls power supply 2 to run at full power again; If the temperature of the area corresponding to power supply 2 is still abnormal after power supply 2 runs at reduced power for 30 seconds (SI units, seconds), the controller controls power supply 2 to stop working and controls backup power supply 31 to start to temporarily power external devices.

[0054] Reference Figure 5 , and its specific implementation is: U1. When power supply 2 is started, the temperature detector starts to detect the internal temperature of power supply 2; U2. When the internal temperature of the power supply 2 is lower than the set value, the controller controls the backup power supply 31 to start working to heat the heating element 32 until the internal temperature of the power supply 2 returns to the set value; U3. When the temperature somewhere inside the power supply 2 is higher than the set value, but other areas except the current area inside the power supply 2 are within the normal temperature range, the controller controls the start-stop controller 4 on the cooling pipe 13 in other areas to be in the closed state, and the start-stop controller 4 on the cooling pipe 13 in the current area to be in the open state, so that the coolant can only flow along the cooling pipe 13 at the current position until the temperature of each place inside the power supply 2 returns to the set value; U4. When the temperature of multiple areas inside the power supply 2 is higher than the set value, the controller controls the start-stop controller 4 at the current position to start synchronously, and increases the working power of the circulator and the air-cooled radiator 11, thereby quickly reducing the temperature of the coolant circulating in the circulation box 12 until the temperature of each part of the power supply 2 returns to normal.

[0055] U5. After executing the implementation methods shown in U1 to U4, if an abnormality still exists in one or more areas inside the power supply 2, the emergency handling function shown in A1 to A2 will be executed.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipation mechanism for a power supply, characterized in that: The invention comprises a heat dissipation component (1), wherein the heat dissipation component (1) is arranged on the power supply (2), the heat dissipation component (1) comprises an air-cooled radiator (11), a circulation box (12), a plurality of cooling pipelines (13) and a controller, wherein the circulation box (12) is arranged on the air-cooled radiator (11), a circulator is arranged in the circulation box (12), and a cooling liquid is injected into the circulation box (12), the circulator is used to adjust the circulation speed of the cooling liquid, a plurality of cooling pipelines (13) are respectively provided with temperature detectors, the plurality of cooling pipelines (13) are arranged in a horizontal and vertical staggered manner inside the power supply (2), and the plurality of cooling pipelines (13) are respectively connected to the circulation box (12), the air-cooled radiator (11) is used to dissipate heat for the circulation box (12), and the controller is used to control the working state of the cooling pipeline (13) according to the temperature signal fed back by the temperature detector.

2. A heat dissipation mechanism for a power supply according to claim 1, characterized in that: The invention also comprises a heating component (3), wherein the heating component (3) comprises a backup power supply (31) and a heating element (32), wherein the heating element (32) is arranged on the circulation box (12), the backup power supply (31) is arranged on the power supply (2), and the backup power supply (31) is electrically connected to the power supply (2) and the heating element (32), the backup power supply (31) is used to supply power to the heating element (32), and the power supply (2) is used to supply power to the backup power supply (31).

3. A heat dissipation mechanism for a power supply according to claim 2, characterized in that: Any one of the cooling pipelines (13) is independently provided with a start-stop controller (4), and the start-stop controller (4) is electrically connected to the controller.

4. A heat dissipation mechanism for a power supply according to claim 3, characterized in that: The cooling liquid is a non-conductive liquid.

5. A heat dissipation mechanism for a power supply according to claim 4, characterized in that: The temperature raising component (32) is configured as a graphene material temperature raising component.

6. A heat dissipation mechanism for a power supply according to claim 5, characterized in that: After the liquid outlet end of the cooling pipeline (13) is inserted into the interior of the power source (2), it is bent along the outer wall of the power source (2) and finally connected to the circulation box (12), and a buffer gap (5) is provided between the cooling pipeline (13) and the outer wall of the power source (2).

7. A heat dissipation method for a power supply, characterized in that: A heat dissipation mechanism for a power supply as claimed in any one of claims 1 to 6, comprising: S1. The temperature of the corresponding area inside the power supply (2) is obtained by contacting the temperature detector in the radiator, and the detection data of the temperature detector is sent to the controller for analysis; S2. The controller controls the start-stop controller (4) on one or more cooling lines (13) according to the temperature analysis results to start working, and adjusts the power of the circulator and the air-cooled radiator (11); S3. The temperature detector continuously detects the temperature of the corresponding area inside the power supply (2); S4. When the temperature inside the power supply (2) returns to normal, the controller controls the start-stop controller (4) to start synchronously, and starts to dissipate heat synchronously at various locations inside the power supply (2).

8. A heat dissipation method for a power supply according to claim 7, characterized in that: In a low temperature environment, the controller starts the backup power supply (31) to heat the heating element (32).

9. A heat dissipation method for a power supply according to claim 8, characterized in that: The method also includes, when the temperature of a certain place or multiple areas inside the power supply (2) exceeds a set value, the controller controls the start-stop controller (4) located at one or more places to stop working, so as to enhance the cooling efficiency of one or more areas of the power supply (2).

10. A heat dissipation method for a power supply according to claim 9, characterized in that: The method also includes an emergency handling function, which includes: A1. The corresponding temperature inside the power supply (2) is continuously detected by the temperature detector. When the temperature of the corresponding area is higher than the set value for more than 1 minute and the heat dissipation component (1) is in a normal working state, the controller sends a control instruction to the power supply (2) to reduce the power of the power supply (2); A2. When the controller issues a control command, the timing starts. At this time, the heat dissipation component (1) is in working state to cool down the corresponding area of ​​the power supply (2). After the power supply (2) runs at reduced power for 30 seconds, when the temperature of the corresponding area inside the power supply (2) returns to the set value, the controller controls the power supply (2) to run at full power again; If the temperature of the area corresponding to the power supply (2) is still in an abnormal state after the power supply (2) has been running at reduced power for 30 seconds, the controller controls the power supply (2) to stop working and controls the backup power supply (31) to start, so as to temporarily supply power to the external device.

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