Power control methods, devices, storage media and power supplies

Abstract

This invention discloses a power control method, device, storage medium, and power supply. By setting a heat dissipation structure with a heat pipe and heat sink connected together, and providing ventilation holes on the heat pipe, the central area of ​​the heat sink can be directly and effectively cooled after the exhaust fan is running, thus solving the problem of not being able to cool the center of the heat sink. Furthermore, considering that the solution of this embodiment can only use a blower for air supply and an exhaust fan for air extraction, the power control method of this embodiment adds an air pressure detection unit. This allows for control of the air pressure balance inside the casing based on pressure changes. Furthermore, by utilizing the temperature change trend inside the casing and the power supply power change trend, the speed of the cooling fan can be pre-adjusted, thereby preventing a significant increase in temperature inside the power supply casing in a short period of time.

Description

Technical Field

[0001] This invention relates to the field of power supplies, and in particular to a power supply control method, apparatus, storage medium, and power supply. Background Technology

[0002] The components inside a power supply generate heat during operation. Excessive internal temperature can affect the operation of these components and even damage them. Therefore, power supplies are typically equipped with heat dissipation components, which mainly consist of a heat sink and a fan. The heat sink comprises multiple heat sink fins arranged side by side. The heat sink absorbing heat, and the fan blows air towards the heat sink, carrying away the heat from the heat sink fins, thus achieving heat dissipation.

[0003] However, during use, it was found that in existing cooling components, the air blown by the fan generally only passes near the edge of the heatsink, rarely reaching the center. This results in poor heat dissipation in the center of the heatsink, thus reducing the overall cooling efficiency of the component. Furthermore, most existing fan controls operate at a fixed speed, which easily leads to energy waste. Another method involves adjusting the fan speed based on the current temperature, but this is a passive adjustment with a lag, making it difficult to prevent sudden, large temperature spikes. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a power supply control method that can effectively dissipate heat from the middle part of the heat sink and effectively reduce the possibility of temperature rise inside the power supply casing.

[0005] The present invention also proposes a power control device, a computer-readable storage medium, and a power supply.

[0006] According to a first aspect of the present invention, the power supply includes a housing and a heat dissipation assembly. The housing has an air inlet and an exhaust outlet. The heat dissipation assembly includes a radiator, a blower, an exhaust fan, an ambient temperature detection unit, and an air pressure detection unit. The radiator includes a heat dissipation pipe and multiple heat dissipation fins. The sidewall of the heat dissipation pipe has multiple ventilation holes. The heat dissipation fins have sleeve holes through which the heat dissipation pipe is fitted. The blower is disposed in the air inlet and located on one side of the radiator to blow air onto the radiator. The exhaust fan is disposed on the exhaust outlet and has an air inlet end connected to the heat dissipation pipe. Both the ambient temperature detection unit and the air pressure detection unit are disposed within the housing.

[0007] The power control method includes:

[0008] Obtain the current operating power of the power supply;

[0009] The power change trend is determined based on the current operating power and historical operating power.

[0010] The current internal temperature of the outer shell is obtained through the ambient temperature detection unit;

[0011] The temperature change trend is determined based on the current internal temperature and the historical internal temperature.

[0012] Based on the temperature change trend and the power change trend, the estimated internal temperature of the outer shell after a preset adjustment time is determined.

[0013] The current air pressure inside the outer casing is obtained through the air pressure detection unit;

[0014] The speed of the blower is adjusted according to the estimated temperature inside the shell and the preset value of the desired temperature inside the shell, and the speed of the exhaust fan is adjusted according to the current air pressure, so that after the preset adjustment time, the difference between the temperature inside the shell and the preset value of the desired temperature inside the shell is less than the preset temperature error threshold, and the air pressure inside the shell is within the allowable range of air pressure error.

[0015] The power control method according to embodiments of the present invention has at least the following beneficial effects:

[0016] By setting up a heat dissipation structure with heat pipes and heat sinks connected together, and providing ventilation holes on the heat pipes, the central area of ​​the heat sink can be directly and effectively cooled after the exhaust fan is running, thus solving the problem of not being able to cool the center of the heat sink. Furthermore, considering that the solution in this embodiment can only use a blower to deliver air and an exhaust fan to extract it, the power control method in this embodiment adds an air pressure detection unit. This allows for control of the air pressure balance inside the casing based on pressure changes. On this basis, the temperature change trend inside the casing and the power supply power change trend are further utilized to achieve pre-adjustment of the cooling fan speed, thereby preventing a significant increase in temperature inside the power supply casing in a short period of time.

[0017] According to some embodiments of the present invention, adjusting the rotational speed of the exhaust fan based on the current air pressure includes:

[0018] Determine the pressure change trend based on the current air pressure and historical air pressure;

[0019] Based on the pressure change trend, the estimated internal pressure of the outer shell after the preset adjustment time is determined;

[0020] The rotational speed of the exhaust fan is adjusted according to the estimated pressure inside the shell so that the air pressure inside the shell is within the allowable range of air pressure error.

[0021] According to some embodiments of the present invention, the air inlet end has an air inlet facing the radiator, the side wall of the air inlet end is provided with a connection port, a guide pipe is provided between the heat dissipation pipe and the connection port, a first solenoid valve is provided at the position between the air inlet and the connection port on the air inlet end, and a second solenoid valve is provided on the guide pipe.

[0022] The power control method further includes:

[0023] Obtain the center temperature of the radiator;

[0024] When the center temperature is lower than the preset value for switching temperature, the first solenoid valve is opened and the second solenoid valve is closed.

[0025] When the center temperature is greater than or equal to the preset switching temperature value, the first solenoid valve is closed and the second solenoid valve is opened.

[0026] According to some embodiments of the present invention, among the plurality of heat sinks, there is a gap between two heat sinks that is larger than the required installation spacing, and a surface-mount temperature sensor is installed on either of the two opposite sides of the two heat sinks, and the temperature sensor is disposed close to the heat pipe, and the surface-mount temperature sensor is used to collect the center temperature.

[0027] According to some embodiments of the present invention, the power control method further includes:

[0028] When the current internal temperature exceeds the preset upper temperature limit, the blower is controlled to run at the preset upper speed limit, the first solenoid valve and the second solenoid valve are simultaneously opened, and the speed of the blower is adjusted according to the current air pressure.

[0029] According to some embodiments of the present invention, the power control method further includes:

[0030] When the current internal temperature exceeds the preset upper temperature limit and the duration exceeds the preset high temperature duration, an over-temperature alarm is issued and / or the power supply is controlled to stop working.

[0031] According to some embodiments of the present invention, determining the estimated internal temperature of the outer casing after a preset adjustment period based on the temperature change trend and the power change trend includes:

[0032] The estimated operating power after the preset adjustment time is determined based on the power change trend;

[0033] The intermediate internal temperature of the outer shell after the preset adjustment time is determined based on the current internal temperature and the temperature change trend; wherein, the preset adjustment time is obtained based on the pre-measured internal temperature change curve of the outer shell, so that the difference between the estimated internal temperature calculated each time and the current ambient temperature is less than the overheating adjustment preset temperature.

[0034] The estimated temperature correction factor is obtained based on the estimated operating power.

[0035] The estimated temperature inside the intermediate shell is corrected according to the estimated temperature correction factor to obtain the estimated temperature inside the shell.

[0036] According to some embodiments of the present invention, adjusting the rotation speed of the hair dryer based on the estimated internal temperature and the preset value of the desired internal temperature includes:

[0037] Determine the difference between the estimated internal temperature and the preset value of the desired internal temperature;

[0038] The speed of the hair dryer is adjusted according to the ambient temperature difference, wherein the increase or decrease in the speed of the hair dryer is positively correlated with the ambient temperature difference.

[0039] According to some embodiments of the present invention, a dustproof net is provided on the outer side of the air outlet.

[0040] According to some embodiments of the present invention, the exhaust vent is equipped with a flow meter;

[0041] The power control method further includes:

[0042] The current ventilation volume is obtained through the flow meter;

[0043] The first rotational speed of the blower is obtained when the current air volume is collected;

[0044] The second rotation speed of the hair dryer when blowing out the current air volume is determined according to the preset relationship between rotation speed and air volume. The preset relationship between rotation speed and air volume represents the correspondence between the rotation speed of the hair dryer and the air volume of the hair dryer under the normal state of the dust filter.

[0045] Determine the first speed difference between the first speed and the second speed;

[0046] When the first speed difference is greater than the preset dust blockage speed threshold, a dust alarm is issued.

[0047] According to a second aspect of the present invention, the power supply includes a housing and a heat dissipation assembly. The housing has an air inlet and an exhaust outlet. The heat dissipation assembly includes a radiator, a blower, an exhaust fan, an ambient temperature detection unit, and an air pressure detection unit. The radiator includes a heat dissipation pipe and multiple heat dissipation fins. The sidewall of the heat dissipation pipe has multiple ventilation holes. The heat dissipation fins have sleeve holes through which the heat dissipation pipe is fitted. The blower is disposed in the air inlet and located on one side of the radiator to blow air onto the radiator. The exhaust fan is disposed on the exhaust outlet and has an air inlet end connected to the heat dissipation pipe. Both the ambient temperature detection unit and the air pressure detection unit are disposed within the housing.

[0048] The power control device includes:

[0049] The power acquisition unit is used to acquire the current operating power of the power supply;

[0050] A power trend determination unit is used to determine the power change trend based on the current operating power and the historical operating power.

[0051] An ambient temperature acquisition unit is used to acquire the current internal temperature of the outer shell through the ambient temperature detection unit;

[0052] A temperature trend determination unit is used to determine the temperature change trend based on the current internal temperature and the historical internal temperature.

[0053] An ambient temperature estimation unit is used to determine the estimated internal temperature of the outer shell after a preset adjustment time based on the temperature change trend and the power change trend.

[0054] A pressure acquisition unit is used to acquire the current air pressure inside the outer shell through the air pressure detection unit;

[0055] The speed adjustment unit is used to adjust the speed of the blower according to the estimated temperature inside the shell and the preset value of the desired temperature inside the shell, and to adjust the speed of the exhaust fan according to the current air pressure, so that after the preset adjustment time, the difference between the temperature inside the shell and the preset value of the desired temperature inside the shell is less than the preset threshold of temperature error, and the air pressure inside the shell is within the allowable range of air pressure error.

[0056] The power control device according to embodiments of the present invention has at least the following beneficial effects:

[0057] By setting up a heat dissipation structure with heat pipes and heat sinks connected together, and providing ventilation holes on the heat pipes, the central area of ​​the heat sink can be directly and effectively cooled after the exhaust fan is running, thus solving the problem of not being able to cool the center of the heat sink. Furthermore, considering that the solution in this embodiment can only use a blower to deliver air and an exhaust fan to extract it, the heat dissipation component control system of this embodiment adds an air pressure detection unit. This allows for control of the air pressure balance inside the casing based on pressure changes. On this basis, the temperature change trend inside the casing and the power supply power change trend are further utilized to achieve pre-adjustment of the cooling fan speed, thereby preventing a significant increase in temperature inside the power supply casing in a short period of time.

[0058] A computer-readable storage medium according to a third aspect embodiment of the present invention stores computer-executable instructions for performing the power control method as described in the first aspect embodiment. Since the computer-readable storage medium employs all the technical solutions of the power control method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0059] According to a fourth aspect embodiment of the present invention, the power supply includes a power supply body and a control unit, the control unit being configured to execute the power control method as described in the first aspect embodiment, the power supply body including the housing, the heat dissipation assembly, and the air pressure detection unit. Since the power supply employs all the technical solutions of the power control method of the above embodiments, it possesses at least all the beneficial effects brought about by the technical solutions of the above embodiments.

[0060] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. Attached Figure Description

[0061] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0062] Figure 1 This is a flowchart of a power control method according to an embodiment of the present invention;

[0063] Figure 2 This is an electrical system diagram of a heat dissipation assembly according to an embodiment of the present invention;

[0064] Figure 3 This is a schematic diagram of the overall structure of the present invention;

[0065] Figure 4 This is a schematic diagram of the heat dissipation component of the present invention;

[0066] Figure 5 for Figure 4 Enlarged view at point A;

[0067] Figure 6 This is a schematic diagram of the heat sink installation.

[0068] Figure 7 This is a schematic diagram of the structure of a hair dryer;

[0069] Figure 8 A schematic diagram showing a radiator with an air intake recess.

[0070] Figure 9 This is a schematic diagram of the heat sink structure in some embodiments.

[0071] Icon labels:

[0072] Radiator 100, heat pipe 101, heat sink 102, ventilation hole 103, sleeve hole 104, fastener 105, mounting plate 106, limiting part 107, opening 108, plug 109, support frame 110, support plate 111, air inlet recess 112;

[0073] Hair dryer 200, air outlet 201, annular air guide plate 202, central air duct 203, peripheral air duct 204;

[0074] Exhaust fan 300, air inlet 301, air inlet 302, air duct 303;

[0075] 400 for the outer casing;

[0076] Control unit 501, ambient temperature detection unit 502, air pressure detection unit 503, patch temperature sensor 504, first solenoid valve 505, second solenoid valve 506. Detailed Implementation

[0077] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0078] In the description of this invention, the use of terms such as "first," "second," etc., is for the purpose of distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0079] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0080] In the description of this invention, it should be noted that, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0081] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of the present invention, not all embodiments.

[0082] See Figure 1 As shown, Figure 1 This is a flowchart of a power control method provided in an embodiment of the present invention. The power control method includes, but is not limited to, the following steps:

[0083] Obtain the current operating power of the power supply;

[0084] Determine the power change trend based on current operating power and historical operating power;

[0085] The current internal temperature of the outer casing 400 is obtained through the ambient temperature detection unit 502;

[0086] Determine the temperature change trend based on the current and historical internal shell temperatures;

[0087] The estimated internal temperature of the outer shell within 400 mm after the preset adjustment time is determined based on the temperature change trend and the power change trend.

[0088] The current air pressure inside the outer casing 400 is obtained by the air pressure detection unit 503;

[0089] The speed of the blower 200 is adjusted according to the estimated temperature inside the shell and the preset value of the desired temperature inside the shell, and the speed of the exhaust fan 300 is adjusted according to the current air pressure, so that after a preset adjustment time, the difference between the temperature inside the shell of the outer shell 400 and the preset value of the desired temperature inside the shell is less than the preset threshold of temperature error, and the air pressure inside the outer shell 400 is within the allowable range of air pressure error.

[0090] refer to Figures 2 to 4To better describe the embodiments of the present invention, the structures involved in the embodiments of the present invention will be described first. An air inlet and an air outlet are provided on the outer casing 400 of the power supply. A blower 200 is located at the air inlet to supply air into the outer casing 400, and an exhaust fan 300 is located at the exhaust outlet to extract gas from the outer casing 400, thereby achieving the purpose of refreshing the air inside the outer casing 400. A heat sink 100 is provided inside the outer casing 400. The heat sink 100 includes a heat dissipation pipe 101 and multiple heat sink fins 102. Multiple ventilation holes 103 are provided on the side wall of the heat dissipation pipe 101. The heat sink fins 102 are provided with sleeve holes 104 and are fitted onto the heat dissipation pipe 101 through the sleeve holes 104. The heat dissipation pipe 101 is connected to the exhaust fan 300, so that after the exhaust fan 300 is running, air is drawn in through the ventilation holes 103, allowing the air to carry away the heat from the center of the heat sink fins 102.

[0091] During actual operation, the power supply will change, and therefore the rate of heat release within the outer casing 400 will also change. To avoid the blower 200 and exhaust fan 300 needing to operate at full power even when the internal temperature is low, the rotation speeds of the blower 200 and exhaust fan 300 are dynamically adjusted in this embodiment to save energy. It should be noted that because the outer casing 400 in this embodiment only has an exhaust port and an exhaust port, to prevent damage to the blower 200, exhaust fan 300, or electronic components due to excessive or insufficient internal pressure, it is necessary to ensure a balance between the intake and exhaust airflow when adjusting the speed of the blower 200 and exhaust fan 300. To address this, this embodiment includes an ambient temperature detection unit 502 and an air pressure detection unit 503 within the outer casing 400, enabling the detection of the internal temperature and pressure within the outer casing 400.

[0092] Based on the above architecture, this embodiment proposes a power control method that enables the implementation of temperature-based variable speed control and a balance between air intake and exhaust volumes. The specific implementation method is as follows.

[0093] The power change trend is determined based on the current power and historical power, and the temperature change trend is determined based on the current and historical internal temperatures. After determining the temperature change trend, the temperature that the shell 400 may reach after a preset adjustment period can be determined. However, directly using the temperature trend for estimation has a certain lag and does not fully consider the impact of power changes. Or, although the power is on an upward trend, the temperature may not rise immediately, resulting in a lag. Therefore, after estimating using the temperature change trend, the estimation result is further corrected using the power change trend to obtain a more realistic estimated internal temperature. If the estimated internal temperature does not meet the requirements of the preset value of the desired internal temperature (or the difference between the preset value of the desired internal temperature and the estimated internal temperature exceeds the allowable tolerance range), the airflow through the shell 400 needs to be adjusted. It is understood that the purpose of the adjustment is to make the estimated internal temperature meet the requirements. Therefore, when the estimated internal temperature is too high, the airflow needs to be increased in time to cool down quickly. However, while increasing the air supply volume, the pressure inside the outer casing 400 will increase due to insufficient exhaust volume. In this case, the speed of the exhaust fan 300 needs to be adjusted according to the current air pressure to reduce the pressure inside the outer casing 400 to within the allowable range of air pressure error, thus avoiding excessive pressure for a long time. Similarly, when the power supply decreases, the temperature inside the outer casing 400 will decrease. At this time, the speed of the air supply fan needs to be reduced, which will result in the air supply volume being less than the exhaust volume. In this case, the speed of the exhaust fan 300 also needs to be adjusted according to the current air pressure to reduce the pressure inside the outer casing 400 to within the allowable range of air pressure error, thus avoiding excessive pressure for a long time.

[0094] It should be noted that in this embodiment of the invention, historical data does not need to be retained indefinitely. Only the amount of data required for each prediction calculation needs to be retained; that is, only the data length of one window needs to be retained. When new data is collected, the oldest data will be replaced, thus ensuring that the prediction results can be updated each time. It is understood that the window length should not be too long. Typically, data collected within a short period of 1 second or 3 seconds can be selected, and the preset adjustment duration can also be selected to be the same length.

[0095] The power control method of this embodiment of the invention solves the problem of not being able to dissipate heat at the center of the heat sink 100 by setting a heat dissipation structure in which the heat pipe 101 and the heat sink 102 are sleeved together, and by setting a ventilation hole 103 on the heat pipe 101. This allows the exhaust fan 300 to directly and effectively dissipate heat from the central area of ​​the heat sink 102 after it is running, thus solving the problem of not being able to dissipate heat at the center of the heat sink 100. At the same time, considering that the solution of this embodiment of the invention can only use the blower 200 to supply air and the exhaust fan 300 to exhaust air, the power control method of this embodiment of the invention adds an air pressure detection unit 503, which can control the air pressure balance inside the outer casing 400 according to the pressure change. On this basis, it further utilizes the temperature change trend and power power change trend inside the outer casing 400 to achieve pre-speed adjustment of the cooling fan, thereby avoiding a large increase in temperature inside the power supply outer casing 400 in a short period of time to a certain extent.

[0096] In some embodiments, adjusting the rotational speed of the exhaust fan 300 according to the current air pressure includes:

[0097] Determine the pressure change trend based on current air pressure and historical air pressure;

[0098] Based on the pressure change trend, the estimated internal pressure within the outer shell 400 after the preset adjustment time is determined;

[0099] The rotational speed of the exhaust fan 300 is adjusted according to the estimated internal pressure to ensure that the air pressure inside the outer casing 400 is within the allowable range of air pressure error.

[0100] By using currently measured air pressure data and historical air pressure data, the pressure change trend can be determined. This allows for the estimation of the internal pressure within the outer casing 400 after a preset adjustment period. Furthermore, adjustments can be made proactively based on this estimated internal pressure, avoiding the lag inherent in direct adjustments based on current air pressure. Simultaneously, when adjusting the speed based on the estimated internal pressure, it is sufficient to ensure that the air pressure within the outer casing 400 remains within the allowable air pressure error range. This range prevents excessive differences in airflow between the exhaust fan 300 and the blower 200, and also avoids frequent adjustments to the exhaust fan 300's operating conditions. It should be noted that the greater the estimated internal pressure exceeds the allowable air pressure error range, the more the exhaust fan 300's speed needs to be adjusted; that is, a positive correlation exists.

[0101] In some embodiments, the air inlet end 301 has an air inlet 302 facing the radiator 100, the side wall of the air inlet end 301 is provided with a connection port, the heat dissipation pipe 101 is provided with a guide pipe 303 between the connection port, the air inlet end 301 is provided with a first solenoid valve 505 at the position between the air inlet 302 and the connection port, and the guide pipe 303 is provided with a second solenoid valve 506.

[0102] Power control methods also include:

[0103] Obtain the center temperature of radiator 100;

[0104] When the center temperature is lower than the preset value of the switching temperature, the first solenoid valve 505 is opened and the second solenoid valve 506 is closed.

[0105] When the center temperature is greater than or equal to the preset switching temperature value, the first solenoid valve 505 is closed and the second solenoid valve 506 is opened.

[0106] An air inlet 302 is provided at the air inlet end 301 of the exhaust fan 300, and a first solenoid valve 505 is correspondingly provided. At the same time, a second solenoid valve 506 is provided at the end of the air duct 303 near the exhaust fan 300, thereby realizing the adjustment of the airflow direction inside the outer casing 400. That is, when the first solenoid valve 505 is activated and the second solenoid valve 506 is closed, the air delivered by the blower will be directly drawn out from the air inlet 302. At this time, the air flowing through the radiator 100 mainly carries away the heat on the outer periphery of the heat sink 102. When the second solenoid valve 506 is activated and the first solenoid valve 505 is closed, the air delivered by the blower will be drawn in from the ventilation hole 103 and drawn out by the exhaust fan 300 through the heat sink duct 101. At this time, the air flowing through the radiator 100 will carry away the heat in the central area of ​​the heat sink 102.

[0107] In this embodiment, by acquiring the temperature of the central region of the radiator 100, i.e., the temperature of the central region of the heat sink 102, it can be determined whether heat dissipation of the central region of the radiator 100 is required. If heat dissipation is required, the second solenoid valve 506 is opened and the first solenoid valve 505 is closed; conversely, if heat dissipation is not required, the first solenoid valve 505 is opened and the second solenoid valve is closed. This allows for effective heat dissipation of various parts of the radiator 100, further improving the heat dissipation effect when the local temperature of the radiator 100 is too high. It is understood that the setting of the first solenoid valve 505 and the second solenoid valve 506 only changes the direction of airflow within the housing and does not affect the adjustment of the air supply and exhaust volume. That is, the airflow adjustment is still based on the internal temperature of the outer housing 400.

[0108] In some embodiments, the gap between two heat sinks 102 is larger than the required installation spacing. A surface-mount temperature sensor 504 is installed on either of the two opposite sides of the two heat sinks 102, and the temperature sensor is positioned close to the heat pipe 101. The surface-mount temperature sensor 504 is used to collect the center temperature. To ensure accurate measurement of the temperature in the center area of ​​the heat sink 100, a surface-mount temperature sensor 504 is used in this embodiment. Since the surface-mount sensor itself has a certain thickness, the spacing between the heat sinks 102 on both sides needs to be adjusted during actual layout to ensure stable sensor installation. In actual installation, the surface-mount temperature sensor 504 is installed directly during the assembly of the heat sinks 102, which is easier than installing it after the heat sinks 102 are installed.

[0109] In some embodiments, the power control method further includes:

[0110] When the current internal temperature exceeds the preset upper limit, the blower 200 is controlled to run at the preset upper limit speed, the first solenoid valve 505 and the second solenoid valve 506 are opened simultaneously, and the speed of the exhaust fan 300 is adjusted according to the current air pressure.

[0111] When the internal temperature of the casing exceeds the preset upper limit, the blower 200 does not need to be controlled according to the intelligent control logic; it can directly operate at the preset upper limit speed to quickly reduce the temperature to within the preset upper limit. In actual engineering, an over-temperature recovery threshold is also set, which is lower than the preset upper limit to avoid temperature oscillations near the preset upper limit. It should be noted that when the blower 200 is running at the preset upper limit speed, the air volume is relatively large. To maintain the internal pressure of the casing 400, the first solenoid valve 505 and the second solenoid valve 506 will be opened simultaneously to better dissipate heat from the casing 400. At the same time, the exhaust fan 300 still follows the strategy of adjusting its speed according to the air pressure to ensure a balance between the intake and exhaust air volumes.

[0112] In some embodiments, the power control method further includes:

[0113] If the current internal temperature exceeds the preset upper temperature limit and the duration exceeds the preset high temperature duration, an over-temperature alarm will be issued and / or the power supply will be stopped.

[0114] In the event of a malfunction or a harsh working environment, the temperature may not be controlled for an extended period, causing it to rise continuously. If the power supply operates in an overheated environment for an extended period, its lifespan may be significantly shortened, and it may even cause a fire. Therefore, if the temperature remains uncontrolled after exceeding the preset high-temperature duration, an alarm will be triggered, or the power supply will be shut down to prevent any dangerous situations from occurring.

[0115] In some embodiments, determining the estimated internal temperature of the housing 400 after a preset adjustment period based on temperature change trends and power change trends includes:

[0116] The estimated operating power after the preset adjustment time is determined based on the power change trend;

[0117] The intermediate internal temperature of the outer shell 400 after a preset adjustment time is determined based on the current internal temperature and temperature change trend. The preset adjustment time is obtained based on the pre-measured internal temperature change curve of the outer shell 400, so that the difference between the estimated internal temperature calculated each time and the current ambient temperature is less than the overheating adjustment preset temperature.

[0118] The estimated temperature correction factor is obtained based on the estimated operating power.

[0119] The internal temperature of the intermediate shell is corrected based on the estimated temperature correction factor to obtain the estimated internal temperature.

[0120] Once the power change trend is determined, the estimated operating power after a preset adjustment period can be directly determined based on the current operating power. Simultaneously, the intermediate shell temperature after a preset period can be estimated based on the current shell temperature and its change trend. However, this estimated intermediate shell temperature does not fully account for the impact of power changes, meaning it exhibits a certain lag. Therefore, a correction factor is determined using the previously determined estimated operating power to correct the intermediate shell temperature, thus obtaining the final estimated shell temperature. It is understandable that the magnitude of the temperature correction factor is positively correlated with the difference between the estimated operating power and the current operating power; that is, the larger the difference, the greater the correction required.

[0121] In some embodiments, adjusting the rotational speed of the hair dryer 200 based on a preset value of the estimated internal temperature and the desired internal temperature includes:

[0122] Determine the difference between the estimated internal temperature and the preset value of the desired internal temperature;

[0123] The speed of the hair dryer 200 is adjusted according to the difference in ambient temperature. The increase or decrease in the speed of the hair dryer 200 is positively correlated with the difference in ambient temperature.

[0124] After determining the estimated internal temperature, it is necessary to further determine the crystal temperature difference between the estimated internal temperature and the preset value of the desired internal temperature. This difference directly reflects the changing trend of the heat that needs to be dissipated, that is, the changing trend of the air volume that needs to be introduced. Therefore, the speed of the hair dryer 200 can be directly adjusted according to this ambient temperature difference. It can be understood that the increase or decrease in the speed of the hair dryer 200 is positively correlated with the ambient temperature difference. That is, the larger the ambient temperature difference, the more the speed needs to be increased or decreased.

[0125] In some embodiments, a dust filter is provided on the outside of the air outlet. The dust filter can prevent dust from entering the power supply to a certain extent, allowing the power supply to be used in harsher environments.

[0126] In some embodiments, a flow meter is provided at the exhaust vent; the power control method further includes:

[0127] The current ventilation volume is obtained through a flow meter;

[0128] When acquiring the current airflow rate, the first rotation speed of the blower is 200.

[0129] The second rotation speed of the blower 200 when blowing out the current air volume is determined according to the rotation speed and flow rate preset relationship. The rotation speed and flow rate preset relationship represents the correspondence between the rotation speed of the blower 200 and the air volume of the blower 200 under normal dust filter conditions.

[0130] Determine the first speed difference between the first speed and the second speed;

[0131] When the first speed difference is greater than the preset dust blockage speed threshold, a dust alarm is issued.

[0132] Understandably, while dust filters allow power supplies to operate in harsher environments, dust accumulation gradually reduces ventilation, eventually causing the entire air-cooling system to lose its heat dissipation capacity and rendering the power supply malfunction. Therefore, ensuring timely replacement or cleaning of the dust filters by users becomes a crucial issue. In this embodiment, a flow meter is installed at the exhaust vent to monitor the airflow. It should be noted that when the dust filter becomes clogged, the blower 200 must rotate more times to deliver the same airflow, i.e., increase its operating speed. The more severe the blockage, the greater the increase in speed. Therefore, it is sufficient to check whether the first speed of the blower 200 at a given exhaust volume corresponds to the expected second speed. If it exceeds the permissible dust filter blockage speed threshold, it indicates an impending blockage risk, requiring timely cleaning and replacement of the dust filter. Understandably, the correspondence between the second speed and the airflow volume can be pre-determined through testing.

[0133] In some embodiments, the power control method further includes:

[0134] Obtain the first rotation speed of the hair dryer 200 and the third rotation speed of the exhaust fan 300 at the same time;

[0135] Determine the second speed difference between the first speed and the third speed;

[0136] When the second speed difference is greater than the preset inlet and outlet fan speed tolerance threshold, a dust alarm is issued; wherein, the inlet and outlet fan speed tolerance threshold is based on the speed difference between the blower 200 and the exhaust fan 300 tested under normal dustproof net conditions.

[0137] It should be noted that dust filter blockage only affects the blower 200 on the air inlet side. For the exhaust fan 300 on the exhaust side, it only needs to ensure that the same amount of air is drawn in and extracted. Therefore, its speed will not increase due to blockage. Consequently, as the blockage worsens, the second speed difference between the blower and exhaust fan 300 will increase. When it exceeds the speed tolerance threshold of the inlet and outlet fans, it can be considered that the dust blockage is about to become severe, triggering an alarm to prompt the user to clean or replace the dust filter in time. It is understandable that the blower 200 and exhaust fan 300 may use different fans. Therefore, when calculating the speed difference, some adjustments can be made to ensure that the speeds of the exhaust fan 300 and blower 200 correspond, allowing for the calculation of the final second speed difference value.

[0138] In some embodiments, such as Figure 6 As shown, the heat sink 101 has a set of ventilation holes 103 between two adjacent heat sinks 102 and on the opposite sides of the two outermost heat sinks 102. Each set of ventilation holes 103 has multiple ventilation holes 103 arranged along the direction surrounding the heat sink 101. With this arrangement, hot air on both sides of the middle position of the heat sink 102 can be drawn into the heat sink 101 through the ventilation holes 103, and hot air from different directions of the heat sink 101 can also be drawn into the heat sink 101 through the ventilation holes 103, thereby improving the heat dissipation effect on the middle position of the heat sink 102 and effectively improving the overall heat dissipation effect of the heat dissipation component.

[0139] In some embodiments, such as Figure 5 and Figure 6 As shown, several mounting plates 106 are installed on the inner wall of the heat dissipation pipe 101 by fasteners 105. The mounting plate 106 is provided with a limiting part 107, which passes through the corresponding ventilation hole 103 and extends out of the heat dissipation pipe 101. The mounting plate 106 is provided with an opening 108 that communicates with the corresponding ventilation hole 103. The end of the heat dissipation pipe 101 away from the exhaust fan 300 is provided with a pick-up and drop-off port for the mounting plate 106 to pass through and a plug 109 for closing the pick-up and drop-off port.

[0140] Taking the heat sink 101 as a square tube as an example, each set of ventilation holes 103 may include four ventilation holes 103, which are provided on the four side walls of the heat sink 101. Two mounting plates 106 may be provided, and the two mounting plates 106 may be respectively attached to the two opposite inner walls of the heat sink 101. The two ends of the mounting plates 106 are connected to the side walls of the heat sink 101 by fasteners 105. The mounting plates 106 have multiple openings 108 along their length. Limiting portions 107 are provided on both sides of the opening 108. The opening 108 can correspond to the ventilation hole 103 on the side wall of the mounting plate 106 of the heat sink 101. The limiting portions 107 can correspond to the ventilation hole 103 on the side wall of the mounting plate 106 of the heat sink 101. The limiting portions 107 are inserted through the corresponding ventilation hole 103 and extend out of the heat sink 101. The limiting portions 107 abut against the heat sink 102 adjacent to the limiting portions 107. The opening 108 is connected to the corresponding ventilation hole 103.

[0141] In this embodiment, the limiting part 107 of the mounting plate 106 can prevent the heat sink 102 from sliding freely along the length direction of the heat pipe 101. This not only makes the installation of the heat sink 102 more stable, but also keeps the spacing between adjacent heat sinks 102 at an appropriate size. This avoids the situation where the spacing is too small, making it difficult for the air blown by the blower 200 to enter the gap between adjacent heat sinks 102 and thus reducing the heat dissipation effect. At the same time, it also avoids the situation where the spacing is too large, resulting in too few heat sinks 102 and thus reducing the heat dissipation effect. Furthermore, when installing the heat sink 102, multiple heat sinks 102 are fitted onto the heat pipe 101, with the multiple heat sinks 102 arranged at intervals. Then, the mounting plate 106 is moved into the heat pipe 101 through the access port. Next, the limiting part 107 of the mounting plate 106 is inserted into the ventilation hole 103. Then, the mounting plate 106 is connected to the side wall of the heat pipe 101 by fasteners 105. Finally, the access port is blocked by the plug 109, thus completing the installation of the heat sink 102. The installation is simple, convenient, time-saving, and labor-saving. Of course, the heat sink 102 can also be integrally formed with the heat pipe 101.

[0142] In some embodiments, such as Figure 4 and Figure 8As shown, a support frame 110 is provided below the heat sink 100, and a support plate 111 is horizontally provided on the support frame 110. The top surface of the support plate 111 has multiple slots, and the bottom ends of the heat sink 102 are engaged in these slots. Specifically, the multiple slots are arranged along the arrangement direction of the heat sink 102 and correspond one-to-one with each heat sink 102, with the bottom ends of the heat sink 102 engaged in the slots. This arrangement not only makes the installation of the heat sink 102 more stable, but also allows the multiple heat sinks 102 to be fitted over the heat pipe 101 and their bottom ends engaged in the slots before installing the mounting plate 106. This ensures that all heat sinks 102 are held in the correct positions, making it easier for the limiting part 107 on the mounting plate 106 to extend to both sides of the heat sink 102 when installing the mounting plate 106, thus facilitating installation.

[0143] In some embodiments, such as Figure 7 As shown, the air blower 200 forms an air outlet 201 at one end near the radiator 100. At least two nested and spaced annular air guide plates 202 are installed inside the air outlet 201. The annular air guide plates 202 extend outwards at an angle close to the radiator 100. Specifically, there can be two annular air guide plates 202. The middle annular air guide plate 202 forms a central air duct 203, and the two annular air guide plates 202 form an outer air duct 204. The central air duct 203 directs air towards the center of the radiator 100 near the air blower 200, while the outer air duct 204, angled outwards, directs air towards the edge and periphery of the radiator 100. This arrangement improves the dispersion of airflow from the air blower 200, thus enhancing the heat dissipation effect on the radiator 100.

[0144] In some embodiments, such as Figure 8 As shown, the annular air guide plate 202 in the middle forms a central air duct 203. An air inlet recess 112 is provided in the middle of the side of the radiator 100 near the blower 200, and the central air duct 203 faces the air inlet recess 112. Generally, the sides of the heat sink 102 near the blower 200 are roughly on the same vertical plane. Therefore, most of the air blown out by the blower 200 moves along the vertical plane of the side of the radiator 100 near the blower 200, with only a small portion entering the gap between adjacent heat sink 102, resulting in poor heat dissipation. In this embodiment, a groove is provided on the side of some heat sinks 102 near the blower 200. All the grooves cooperate to form an air inlet recess 112. Most of the air blown out by the blower 200 will first enter the air inlet recess 112. Since the air inlet recess 112 is concave, the air that enters the air inlet recess 112 is not easy to flow out in reverse. Instead, it will enter the gap between two adjacent heat sinks 102 from the periphery of the air inlet recess 112, thereby improving the heat dissipation effect of the heat sink 100.

[0145] In some embodiments, such as Figure 9 As shown, the thickness of the heat sink 102 on the side near the blower 200 gradually decreases along the direction of proximity to the blower 200. That is, the gap between two adjacent heat sinks 102 on the side near the blower 200 gradually increases along the direction of proximity to the blower 200. This design makes it easier for the air blown out by the blower 200 to enter the gap between the two adjacent heat sinks 102, thereby improving the heat dissipation effect of the heat sink 100.

[0146] In some embodiments, such as Figure 4 and Figure 8 As shown, the heat dissipation pipe 101 is configured as a square tube structure, with one corner of the heat dissipation pipe 101 facing the blower 200. This configuration not only prevents the heat sink 102 from rotating arbitrarily, but also reduces the obstruction of airflow by the heat dissipation pipe 101 by one corner facing the blower 200. This allows the air blown by the blower 200 to flow more easily to the side of the heat dissipation pipe 101 facing away from the blower 200, resulting in better heat dissipation for the heat sink 100.

[0147] This invention also provides a power control device, which includes: a power acquisition unit, a power trend determination unit, an ambient temperature acquisition unit, a temperature trend determination unit, an ambient temperature estimation unit, a pressure acquisition unit, and a speed adjustment unit;

[0148] The power acquisition unit is used to acquire the current operating power of the power supply;

[0149] The power trend determination unit is used to determine the power change trend based on the current operating power and historical operating power.

[0150] An ambient temperature acquisition unit is used to acquire the current internal temperature of the outer casing 400 through the ambient temperature detection unit 502.

[0151] Temperature trend determination unit, used to determine the temperature change trend based on the current internal temperature and historical internal temperature;

[0152] An ambient temperature estimation unit is used to determine the estimated internal temperature of the outer casing 400 after a preset adjustment time based on the temperature change trend and the power change trend.

[0153] The pressure acquisition unit is used to acquire the current air pressure inside the outer casing 400 through the air pressure detection unit 503;

[0154] The speed adjustment unit is used to adjust the speed of the blower 200 according to the estimated temperature inside the housing and the preset value of the desired temperature inside the housing, and to adjust the speed of the exhaust fan 300 according to the current air pressure, so that after a preset adjustment time, the difference between the temperature inside the housing 400 and the preset value of the desired temperature inside the housing is less than the preset threshold of temperature error, and the air pressure inside the housing 400 is within the allowable range of air pressure error.

[0155] refer to Figures 2 to 4 To better describe the embodiments of the present invention, the structures involved in the embodiments of the present invention will be described first. An air inlet and an air outlet are provided on the outer casing 400 of the power supply. A blower 200 is located at the air inlet to supply air into the outer casing 400, and an exhaust fan 300 is located at the exhaust outlet to extract gas from the outer casing 400, thereby achieving the purpose of refreshing the air inside the outer casing 400. A heat sink 100 is provided inside the outer casing 400. The heat sink 100 includes a heat dissipation pipe 101 and multiple heat sink fins 102. Multiple ventilation holes 103 are provided on the side wall of the heat dissipation pipe 101. The heat sink fins 102 are provided with sleeve holes 104 and are fitted onto the heat dissipation pipe 101 through the sleeve holes 104. The heat dissipation pipe 101 is connected to the exhaust fan 300, so that after the exhaust fan 300 is running, air is drawn in through the ventilation holes 103, allowing the air to carry away the heat from the center of the heat sink fins 102.

[0156] During actual operation, the power supply will change, and therefore the rate of heat release within the outer casing 400 will also change. To avoid the blower 200 and exhaust fan 300 needing to operate at full power even when the internal temperature is low, the rotation speeds of the blower 200 and exhaust fan 300 are dynamically adjusted in this embodiment to save energy. It should be noted that because the outer casing 400 in this embodiment only has an exhaust port and an exhaust port, to prevent damage to the blower 200, exhaust fan 300, or electronic components due to excessive or insufficient internal pressure, it is necessary to ensure a balance between the intake and exhaust airflow when adjusting the speed of the blower 200 and exhaust fan 300. To address this, this embodiment includes an ambient temperature detection unit 502 and an air pressure detection unit 503 within the outer casing 400, enabling the detection of the internal temperature and pressure within the outer casing 400.

[0157] Based on the above architecture, this embodiment proposes a power control device that enables the implementation of temperature-based variable speed control and the balancing of air intake and exhaust volumes. The specific implementation method is as follows.

[0158] The power change trend is determined based on the current power and historical power, and the temperature change trend is determined based on the current and historical internal temperatures. After determining the temperature change trend, the temperature that the shell 400 may reach after a preset adjustment period can be determined. However, directly using the temperature trend for estimation has a certain lag and does not fully consider the impact of power changes. Or, although the power is on an upward trend, the temperature may not rise immediately, resulting in a lag. Therefore, after estimating using the temperature change trend, the estimation result is further corrected using the power change trend to obtain a more realistic estimated internal temperature. If the estimated internal temperature does not meet the requirements of the preset value of the desired internal temperature (or the difference between the preset value of the desired internal temperature and the estimated internal temperature exceeds the allowable tolerance range), the airflow through the shell 400 needs to be adjusted. It is understood that the purpose of the adjustment is to make the estimated internal temperature meet the requirements. Therefore, when the estimated internal temperature is too high, the airflow needs to be increased in time to cool down quickly. However, while increasing the air supply volume, the pressure inside the outer casing 400 will increase due to insufficient exhaust volume. In this case, the speed of the exhaust fan 300 needs to be adjusted according to the current air pressure to reduce the pressure inside the outer casing 400 to within the allowable range of air pressure error, thus avoiding excessive pressure for a long time. Similarly, when the power supply decreases, the temperature inside the outer casing 400 will decrease. At this time, the speed of the air supply fan needs to be reduced, which will result in the air supply volume being less than the exhaust volume. In this case, the speed of the exhaust fan 300 also needs to be adjusted according to the current air pressure to reduce the pressure inside the outer casing 400 to within the allowable range of air pressure error, thus avoiding excessive pressure for a long time.

[0159] It should be noted that in this embodiment of the invention, historical data does not need to be retained indefinitely. Only the amount of data required for each prediction calculation needs to be retained; that is, only the data length of one window needs to be retained. When new data is collected, the oldest data will be replaced, thus ensuring that the prediction results can be updated each time. It is understood that the window length should not be too long. Typically, data collected within a short period of 1 second or 3 seconds can be selected, and the preset adjustment duration can also be selected to be the same length.

[0160] The power control device of this embodiment of the invention uses a heat dissipation structure in which a heat dissipation pipe 101 and a heat sink 102 are connected, and a ventilation hole 103 is provided on the heat dissipation pipe 101. This allows the exhaust fan 300 to directly and effectively dissipate heat from the central area of ​​the heat sink 102 after it is running, thus solving the problem of not being able to dissipate heat from the central position of the heat sink 100. Furthermore, considering that the solution of this embodiment of the invention can only use a blower 200 to supply air and an exhaust fan 300 to extract air, the heat dissipation component control system of this embodiment of the invention adds an air pressure detection unit 503. This allows for control of the air pressure balance inside the outer casing 400 based on pressure changes. On this basis, the temperature change trend inside the outer casing 400 and the power supply power change trend are further utilized to achieve pre-adjustment of the cooling fan speed, thereby preventing a significant increase in temperature inside the power supply casing 400 in a short period of time.

[0161] Furthermore, one embodiment of the present invention also provides a power supply, which includes a power supply body and a control unit 501. The control unit 501 is used to execute the power control method as described in the first aspect embodiment. The power supply body includes a housing 400, a heat dissipation assembly, and a pressure detection unit 503.

[0162] Furthermore, one embodiment of the present invention provides a computer-readable storage medium storing computer-executable instructions that are executed by a processor or control module, causing the processor to perform the power control method in the above embodiments, for example, to perform the method described above.

[0163] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules, or other data. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0164] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A power supply control method characterized by comprising: The power supply comprises an outer shell and a heat dissipation assembly, the outer shell is provided with a blowing port and an exhaust port; the heat dissipation assembly comprises a heat sink, a blower, an exhaust fan, an ambient temperature detection unit and an air pressure detection unit; the heat sink comprises a heat dissipation pipe and a plurality of heat dissipation fins, the side wall of the heat dissipation pipe is provided with a plurality of ventilation holes, the heat dissipation fins are provided with a sleeve hole and the heat dissipation pipe is sleeved in the sleeve hole; the blower is arranged in the blowing port and located on one side of the heat sink to blow air to the heat sink; the exhaust fan is arranged on the exhaust port, and the exhaust fan has an air inlet end connected with the heat dissipation pipe; The ambient temperature detection unit and the air pressure detection unit are arranged in the outer shell; The power supply control method comprises: obtaining the current running power of the power supply; determining the power change trend according to the current running power and the historical running power; obtaining the current shell temperature in the outer shell through the ambient temperature detection unit; determining the temperature change trend according to the current shell temperature and the historical shell temperature; determining the shell estimated temperature in the outer shell after the preset adjustment time according to the temperature change trend and the power change trend; obtaining the current air pressure in the outer shell through the air pressure detection unit; adjusting the rotating speed of the blower according to the shell estimated temperature and the shell expected temperature preset value, and adjusting the rotating speed of the exhaust fan according to the current air pressure, so that after the preset adjustment time, the difference between the shell temperature of the outer shell and the shell expected temperature preset value is less than the temperature error preset threshold, and the air pressure in the outer shell is within the air pressure error allowable range.

2. The power supply control method according to claim 1, characterized by, The adjustment of the rotating speed of the exhaust fan according to the current air pressure comprises: determining the pressure change trend according to the current air pressure and the historical air pressure; determining the shell estimated pressure in the outer shell after the preset adjustment time according to the pressure change trend; adjusting the rotating speed of the exhaust fan according to the shell estimated pressure, so that the air pressure in the outer shell is within the air pressure error allowable range.

3. The power control method of claim 1, wherein The air inlet end has an air inlet opening facing the heat sink, the side wall of the air inlet end is provided with a connecting opening, a wind guide pipe is arranged between the heat dissipation pipe and the connecting opening, a first electromagnetic valve is arranged between the air inlet opening and the connecting opening of the air inlet end, and the wind guide pipe is provided with a second electromagnetic valve; The power supply control method further comprises: obtaining the center temperature of the heat sink; when the center temperature is less than the switching temperature preset value, opening the first electromagnetic valve and closing the second electromagnetic valve; when the center temperature is greater than or equal to the switching temperature preset value, closing the first electromagnetic valve and opening the second electromagnetic valve.

4. The power supply control method according to claim 3, characterized by, The power supply control method further comprises: when the current shell temperature exceeds the preset upper temperature limit value, controlling the blower to run at a preset upper limit rotating speed, controlling the first electromagnetic valve and the second electromagnetic valve to be opened at the same time, and adjusting the rotating speed of the exhaust fan according to the current air pressure.

5. The power control method of claim 1, wherein The power supply control method further comprises: When the current temperature inside the shell exceeds a preset upper temperature limit value and the duration exceeds a preset high temperature duration value, an over-temperature alarm is issued and / or the power supply is controlled to stop working.

6. The power control method of claim 1, wherein The method comprises the following steps: The method comprises the following steps: The method comprises the following steps: The method comprises the following steps: The method comprises the following steps:

7. The power control method of claim 1, wherein The method comprises the following steps: The method comprises the following steps: The power supply comprises an outer shell and a heat dissipation assembly, the outer shell is provided with an air supply port and an air exhaust port; the heat dissipation assembly comprises a heat sink, a blower, an air exhaust fan, an ambient temperature detection unit and an air pressure detection unit; the heat sink comprises a heat dissipation pipe and a plurality of heat dissipation fins, the sidewall of the heat dissipation pipe is provided with a plurality of ventilation holes, the heat dissipation fins are provided with sleeve holes and are sleeved with the heat dissipation pipe through the sleeve holes; the blower is arranged in the air supply port and located on one side of the heat sink to blow air to the heat sink; the air exhaust fan is arranged on the air exhaust port, the air exhaust fan has an air inlet end, and the air inlet end is connected with the heat dissipation pipe; 8. A power control device, characterized by comprising: The ambient temperature detection unit and the air pressure detection unit are arranged in the outer shell; The power supply control device comprises: a power acquisition unit for acquiring the current operating power of the power supply; a power trend determination unit for determining a power change trend according to the current operating power and historical operating power; an ambient temperature acquisition unit for acquiring the current temperature inside the shell of the outer shell through the ambient temperature detection unit; a temperature trend determination unit for determining a temperature change trend according to the current temperature inside the shell and historical temperature inside the shell; an ambient temperature estimation unit for determining a shell inside estimated temperature of the outer shell after a preset adjustment duration according to the temperature change trend and the power change trend; an air pressure acquisition unit for acquiring the current air pressure inside the outer shell through the air pressure detection unit; ​ A rotation speed adjusting unit is configured to adjust the rotation speed of the air blower according to the estimated temperature in the shell and the preset expected temperature in the shell, and to adjust the rotation speed of the air extractor according to the current air pressure, so that after the preset adjustment time, the temperature in the shell of the outer shell body is less than a preset temperature error threshold from the preset expected temperature in the shell, and the air pressure in the outer shell body is within a preset air pressure error range.

9. A computer-readable storage medium, characterized in that: The computer readable storage medium stores computer executable instructions for causing a computer to execute the power supply control method according to any one of claims 1 to 7.

10. A power supply, characterized by, The power supply includes a power supply body and a control unit, the control unit is configured to execute the power supply control method according to any one of claims 1 to 7, and the power supply body includes the outer shell body, the heat dissipation assembly and the air pressure detection unit.

Images