CN115370600B - Fan duty ratio determining method, device, equipment, medium and product - Google Patents
Fan duty ratio determining method, device, equipment, medium and productInfo
- Publication number
- CN115370600B CN115370600B CN202211006235.2A CN202211006235A CN115370600B CN 115370600 B CN115370600 B CN 115370600B CN 202211006235 A CN202211006235 A CN 202211006235A CN 115370600 B CN115370600 B CN 115370600B
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- duty ratio
- charging pile
- temperature
- temperature difference
- determining
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本申请涉及一种风机占空比确定方法、装置、计算机设备、存储介质和计算机程序产品。所述方法包括：首先获取充电桩充电模块的出风口温度，若出风口温度大于第一预设温度阈值，则确定出风口温度和第一预设温度阈值的第一温差，然后获取充电桩充电模块的进风口温度以及充电桩充电模块的风机占空比，并确定进风口温度和出风口温度的第二温差，最后根据第一温差、第二温差以及充电桩充电模块的风机占空比确定充电桩系统的占空比。本申请提供的方法，能够根据第一温差、第二温差以及充电桩充电模块的风机占空比确定充电桩系统的占空比，然后根据充电桩系统的占空比调节充电桩系统风机风量。
The present application relates to a method, device, computer equipment, storage medium and computer program product for determining a fan duty cycle. The method comprises: first obtaining the air outlet temperature of the charging pile charging module, and if the air outlet temperature is greater than a first preset temperature threshold, determining a first temperature difference between the air outlet temperature and the first preset temperature threshold, then obtaining the air inlet temperature of the charging pile charging module and the fan duty cycle of the charging pile charging module, and determining a second temperature difference between the air inlet temperature and the air outlet temperature, and finally determining the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module. The method provided in the present application can determine the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, and then adjust the air volume of the fan of the charging pile system according to the duty cycle of the charging pile system.
Description
Technical Field
The application relates to the technical field of new energy charging and battery replacement, in particular to a method and device for determining a duty ratio of a fan, computer equipment, a storage medium and a computer program product.
Background
Along with the development of new energy charging and battery replacement technology field, the high-power charging requirement for the electric vehicle is higher and higher, more and more charging modules are required to be configured in the charging pile, and meanwhile, in order to ensure that the charging pile is compact in size, the charging modules are required to be compressed as much as possible, so that the charging pile is extremely excellent. However, since the charging module generates a large amount of heat during the operation process, the design of the size of the compressed charging module can cause serious heat generation of the unit volume of the charging module, and the temperature is too high, so that components inside the charging module are damaged, and further, the operation failure of the charging pile is caused, and therefore, the heat dissipation design of the charging pile is a very important link of the operation reliability of the charging pile.
At present, the heat dissipation design of the charging pile in the market mostly adopts a constant-rotation-speed air exhaust mode of a charging pile system fan. But the heat productivity of the charging pile when operating at low power output is very small, and the heat productivity of the charging pile when operating at high power output is very large. That is, as long as the charging pile performs charging output, all fans inside the charging pile run at full speed, and the heat dissipation mode not only wastes electric energy and generates very large noise, but also can age more easily when the fans run at full speed for a long time, and the service life is shortened.
Disclosure of Invention
In view of the foregoing, it is desirable to provide a fan duty cycle determining method, apparatus, computer device, computer readable storage medium, and computer program product that can adjust the fan air volume of a charging pile system according to actual requirements.
In a first aspect, the present application provides a method for determining a duty cycle of a fan, the method comprising:
acquiring the temperature of an air outlet of a charging module of the charging pile;
if the air outlet temperature is greater than a first preset temperature threshold, determining a first temperature difference between the air outlet temperature and the first preset temperature threshold;
Acquiring the temperature of an air inlet of a charging pile charging module and the duty ratio of a fan of the charging pile charging module, and determining a second temperature difference between the temperature of the air inlet and the temperature of the air outlet;
And determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module.
In one embodiment, the determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference, and the fan duty ratio of the charging pile charging module includes:
Determining a first duty cycle according to the first temperature difference;
And if the second temperature difference is smaller than or equal to a second preset temperature threshold, determining a maximum duty ratio according to the first duty ratio and the fan duty ratio of the charging pile charging module, and determining the maximum duty ratio as the duty ratio of the charging pile system, wherein the maximum duty ratio is the maximum value of the first duty ratio and the fan duty ratio of the charging pile charging module.
In one embodiment, the determining the first duty cycle according to the first temperature difference includes:
acquiring a plurality of preset temperature ranges;
acquiring a duty ratio corresponding to each preset temperature range;
and acquiring the preset temperature range corresponding to the first temperature difference, and determining the first duty ratio according to the acquired preset temperature range corresponding to the first temperature difference.
In one embodiment, the determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference, and the fan duty ratio of the charging pile charging module further includes:
And if the second temperature difference is greater than a second preset temperature threshold, determining the maximum duty ratio of the charging pile system fan as the duty ratio of the charging pile system, wherein the maximum duty ratio of the charging pile system fan is the duty ratio corresponding to the maximum design air quantity of the charging pile system fan.
In one embodiment, the method further comprises:
and if the temperature of the air outlet is smaller than or equal to the first preset temperature threshold, the charging pile system fan continues to operate according to the current duty ratio.
In one embodiment, the method further comprises:
and if the second temperature difference is larger than a third preset temperature threshold value, sending out an alarm signal.
In a second aspect, the present application further provides a fan duty cycle determining apparatus, the apparatus comprising:
the first acquisition module is used for acquiring the air outlet temperature of the charging pile charging module;
the first determining module is used for determining a first temperature difference between the air outlet temperature and a first preset temperature threshold value if the air outlet temperature is greater than the first preset temperature threshold value;
The second acquisition module is used for acquiring the temperature of the air inlet of the charging pile charging module and the duty ratio of the fan of the charging pile charging module, and determining a second temperature difference between the temperature of the air inlet and the temperature of the air outlet;
And the second determining module is used for determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module.
In a third aspect, the present application also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of the method of any of the embodiments described above when the processor executes the computer program.
In a fourth aspect, the present application also provides a computer-readable storage medium. The computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of any of the embodiments described above.
In a fifth aspect, the present application also provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, implements the steps of the method of any of the embodiments described above.
The method, the device, the computer equipment, the storage medium and the computer program product for determining the duty ratio of the fan are characterized in that firstly, the air outlet temperature of the charging pile charging module is obtained, if the air outlet temperature is larger than a first preset temperature threshold value, a first temperature difference between the air outlet temperature and the first preset temperature threshold value is determined, then the air inlet temperature of the charging pile charging module and the duty ratio of the fan of the charging pile charging module are obtained, a second temperature difference between the air inlet temperature and the air outlet temperature is determined, and finally the duty ratio of the charging pile system is determined according to the first temperature difference, the second temperature difference and the duty ratio of the fan of the charging pile charging module. The method provided by the application can determine the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the duty ratio of the fan of the charging pile charging module, and then adjust the air quantity of the fan of the charging pile system according to the duty ratio of the charging pile system.
Drawings
FIG. 1 is a diagram of an application environment for a method of determining a duty cycle of a blower in one embodiment;
FIG. 2 is a flow chart of a method of determining a duty cycle of a blower in one embodiment;
FIG. 3 is a graph of a correspondence between a preset temperature range and a duty cycle of a charging pile system in one embodiment;
FIG. 4 is a schematic diagram of a method of determining a duty cycle of a blower according to one embodiment;
FIG. 5 is a schematic flow chart of a method for determining the duty cycle of a blower in one embodiment;
FIG. 6 is a block diagram of a blower duty cycle determination device according to one embodiment;
Fig. 7 is an internal structural diagram of a computer device in one embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The fan duty ratio determining method provided by the embodiment of the application can be applied to the charging pile system 11 shown in fig. 1, wherein the charging pile system comprises a charging pile controller 111, a plurality of charging modules 112, a plurality of system fans 113 and a plurality of temperature sensors 114. Specifically, the temperature sensor 114 at the air outlet of the charging module 112 collects the temperature at the air outlet of the charging module 112, the charging pile controller 111 obtains the air outlet temperature of the charging module 112, if the air outlet temperature is greater than a first preset temperature threshold, the charging pile controller 111 determines a first temperature difference between the air outlet temperature and the first preset temperature threshold, the temperature sensor 114 at the air inlet of the charging module 112 collects the temperature at the air inlet of the charging module 112, the charging pile controller 111 obtains the air inlet temperature of the charging module 112 and the fan duty ratio of the charging module 112, the charging pile controller 111 determines a second temperature difference between the air inlet temperature and the air outlet temperature, and the charging pile controller 111 determines the duty ratio of the system fan 113 according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module.
In one embodiment, as shown in fig. 2, a fan duty ratio determining method is provided, and the method is applied to the charging pile controller 111 in fig. 1 for illustration, and includes the following steps:
s201, acquiring the temperature of an air outlet of the charging pile charging module.
The charging module is a component that provides electrical energy to the vehicle. A plurality of temperature sensors are arranged at the air outlet of the charging module, the charging pile controller obtains the temperatures collected by the temperature sensors at the air outlet of the charging module, and then the average value of the obtained temperatures is calculated to obtain the air outlet temperature of the charging module. The charging pile controller 111 acquires the air outlet temperature of the charging pile charging module.
S202, if the temperature of the air outlet is greater than a first preset temperature threshold, determining a first temperature difference between the temperature of the air outlet and the first preset temperature threshold.
After the charging pile controller determines the air outlet temperature, whether the air outlet temperature is greater than a first preset temperature threshold is further required to be judged, wherein the first preset temperature threshold is determined according to the heat dissipation performance of the charging pile, for example, if the heat dissipation performance of the charging pile is strong, a lower first preset temperature threshold can be set, and when the air outlet temperature is greater than the first preset temperature threshold, the air quantity of the charging pile fan is insufficient to normally discharge the heat in the charging pile, and the air quantity is required to be increased.
The first temperature difference is a temperature difference obtained by subtracting a first preset temperature threshold from the air outlet temperature.
S203, acquiring the temperature of the air inlet of the charging pile charging module and the duty ratio of the fan of the charging pile charging module, and determining the second temperature difference between the temperature of the air inlet and the temperature of the air outlet.
The second temperature difference is the temperature difference obtained by subtracting the temperature of the air inlet from the temperature of the air outlet.
Under the condition that the temperature of the air outlet is greater than a first preset temperature threshold value, the charging pile controller obtains the temperature of the air inlet of the charging module and the duty ratio of the fan of the charging module.
A plurality of temperature sensors are arranged at the air inlet of the charging module, the charging pile controller obtains temperatures collected by the plurality of temperature sensors at the air inlet of the charging module, then an average value of the obtained temperatures is calculated to obtain the air inlet temperature of the charging module, and finally the temperature difference value obtained by subtracting the air inlet temperature from the air outlet temperature is utilized.
The fan duty cycle of the charging module is the actual duty cycle of the fan in the charging module when in operation, wherein the fan duty cycle is used for representing the air quantity of the fan, for example, the maximum air quantity of the fan is 1000CFM, the duty cycle of the fan at a certain moment is 10%, and then the actual air quantity of the fan is 1000 x 10% = 100CFM.
S204, determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module.
The method comprises the steps of completing in a charging pile controller, wherein the charging pile controller comprises an error controller, a Pulse Width Modulation (PWM) regulator and a comparator, the error controller is used for judging whether the temperature of an air outlet of a charging module is larger than a first preset temperature threshold, the PWM regulator is used for obtaining a first duty ratio according to a first temperature difference and obtaining a second duty ratio according to a second temperature difference, the comparator is used for comparing the first duty ratio, the second duty ratio and the fan duty ratio of the charging module, and the maximum duty ratio of the three is determined to be the duty ratio of the charging pile system.
The duty ratio of the charging pile system is the duty ratio required by the fans of the charging pile system when in operation, wherein the number of the fans of the charging pile system is determined according to the heat dissipation requirement of the charging pile system, for example, the charging pile system comprises 4 fans in total of F1, F2, F3 and F4, after the duty ratio of the charging pile system is determined by the comparator, the duty ratio of the charging pile system is simultaneously sent to the 4 fans of the charging pile system by the PWM regulator, and each fan of the charging pile system adjusts the air quantity of the charging pile system according to the received duty ratio of the fans.
According to the fan duty ratio determining method, firstly, the air outlet temperature of the charging pile charging module is obtained, if the air outlet temperature is larger than the first preset temperature threshold, the first temperature difference between the air outlet temperature and the first preset temperature threshold is determined, then the air inlet temperature of the charging pile charging module and the fan duty ratio of the charging pile charging module are obtained, the second temperature difference between the air inlet temperature and the air outlet temperature is determined, and finally the duty ratio of the charging pile system is determined according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module. The method provided by the application can determine the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the duty ratio of the fan of the charging pile charging module, and then adjust the air quantity of the fan of the charging pile system according to the duty ratio of the charging pile system.
In some embodiments, determining the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pile charging module includes determining the first duty cycle according to the first temperature difference, determining the maximum duty cycle according to the first duty cycle and the fan duty cycle of the charging pile charging module if the second temperature difference is less than or equal to a second preset temperature threshold, and determining the maximum duty cycle as the duty cycle of the charging pile system, wherein the maximum duty cycle is the maximum of the first duty cycle and the fan duty cycle of the charging pile charging module.
In this step, a corresponding first duty cycle is determined by the PWM regulator based on the first temperature difference. The second preset temperature threshold is determined according to the heat dissipation performance of the charging pile system, and when the second temperature difference is smaller than or equal to the second preset temperature threshold, the fact that the temperature difference between the inlet and the outlet of the charging module has no influence on the heat dissipation condition of the charging pile system is explained, and at the moment, only the influence of the outlet temperature of the charging module and the duty ratio of the fan of the charging module on the heat dissipation of the charging pile system is considered.
According to the method provided by the step, whether the influence of the temperature difference of the inlet and the outlet of the charging module on the heat dissipation of the charging pile system is required to be considered can be determined by setting the second preset temperature threshold, and if not, the workload of the PWM regulator and the comparator can be reduced.
In some embodiments, determining the first duty cycle according to the first temperature difference includes obtaining a plurality of preset temperature ranges, obtaining a duty cycle corresponding to each preset temperature range, obtaining a preset temperature range corresponding to the first temperature difference, and determining the first duty cycle according to the preset temperature range corresponding to the obtained first temperature difference.
In this step, each preset temperature range has a duty ratio corresponding to the preset temperature range, and the corresponding relationship between the preset temperature range and the duty ratio of the charging pile system is determined according to the heat dissipation performance of the charging pile. For example, as shown in fig. 3, when the preset temperature range is 0 to 40 ℃, the duty ratio of the charging pile system is 30%, when the preset temperature range is 40 to 60 ℃, the duty ratio of the charging pile system is linearly changed between 30% and 100%, when the preset temperature range is greater than 60 ℃, the duty ratio of the charging pile system is 100%, and if the first temperature difference is 50 ℃, the first duty ratio at this time is 65% according to the corresponding relation in fig. 2.
The method provided by the step determines the first duty ratio according to the corresponding relation between the preset temperature range and the duty ratio of the charging pile system, is beneficial to more accurately adjusting the air quantity of the charging pile system fan, realizes that the system fan runs at a lower speed when in low-power charging, runs at a higher speed when in high-power charging, and further reduces the energy consumption of the fan to the greatest extent and reduces the noise output.
In some embodiments, the method comprises the steps of determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module, and determining the maximum duty ratio of the charging pile system fan as the duty ratio of the charging pile system if the second temperature difference is larger than a second preset temperature threshold, wherein the maximum duty ratio of the charging pile system fan is the duty ratio corresponding to the maximum design air quantity of the charging pile system fan.
In this step, when the second temperature difference is greater than the second preset temperature threshold, it is indicated that the temperature difference between the inlet and the outlet of the charging module is the factor that affects heat dissipation of the charging pile system most, in order for the system to dissipate heat normally, the system fan needs to operate with the maximum air volume, and at this time, the duty cycle of the system is the duty cycle corresponding to the maximum design air volume, that is, 100%.
According to the method provided by the step, when the second temperature difference is larger than the second preset temperature threshold, the system directly operates at the duty ratio of 100%, so that heat can be effectively dissipated, and damage to components caused by overhigh temperature of the system is prevented.
In some embodiments, the method further comprises continuing to operate the charging pile system fan according to the current duty cycle if the air outlet temperature is less than or equal to a first preset temperature threshold.
In this step, when the temperature of the air outlet is less than or equal to the first preset temperature threshold, it is indicated that the heat dissipation of the charging pile system is normal, and there is no risk of overheat operation, so that the air quantity of the system fan does not need to be adjusted, and the system duty ratio continues to operate according to the current value.
According to the method provided by the step, when the temperature of the air outlet is smaller than or equal to the first preset temperature threshold value, the wind speed of the system fan is not regulated, so that the energy consumption of the fan can be reduced to the maximum extent, and the noise can be reduced.
In some embodiments, the method further comprises sending an alarm signal if the second temperature difference is greater than a third preset temperature threshold.
In this step, the third preset temperature threshold is the maximum temperature difference between the inlet and the outlet of the charging module that can be borne by the preset system, and when the second temperature difference reaches the third preset temperature threshold, the system fan cannot normally dissipate heat even if running at the maximum rotation speed, and at this time, the system will send out an alarm signal to remind the staff to close the system or other corresponding countermeasures in time.
According to the method provided by the step, when the second temperature difference is larger than the third preset temperature threshold value, an alarm signal is sent out, so that workers can be timely reminded of coping, and dangers can be effectively prevented.
In one embodiment, as shown in fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a charging pile system in one embodiment, fig. 5 is a flow chart of a principle of determining a duty ratio of a fan in one embodiment, as can be seen from fig. 4, there are a plurality of system fans in the system, 2 temperature sensors PT1 and PT2 are provided at an air inlet of a charging module, 2 temperature sensors PT3 and PT4 are also provided at an air outlet of the charging module, and the charging pile controller is a PWM speed regulation control board. The PWM speed regulation control board obtains temperatures measured by temperature sensors PT3 and PT4, calculates an average value of the temperatures measured by PT3 and PT4 to obtain an air outlet temperature of the charging module, if the PWM speed regulation control board judges that the air outlet temperature is smaller than or equal to a first preset temperature threshold, the fan of the charging pile system continuously operates according to the current duty ratio, if the PWM speed regulation control board judges that the air outlet temperature is larger than the first preset temperature threshold, at the moment, the PWM speed regulation control board obtains a fan duty ratio of the charging module and temperatures measured by temperature sensors PT1 and PT2, calculates a first temperature difference between the air outlet temperature and the first preset temperature threshold and a second temperature difference between the air inlet temperature and the air outlet temperature, if the second temperature difference is larger than the second preset temperature threshold, the maximum duty ratio of the fan of the charging pile system is determined to be the duty ratio of the charging pile system, and if the second temperature difference is smaller than or equal to the second preset temperature threshold, the duty ratio of the charging pile system is determined according to the first temperature difference and the fan duty ratio of the charging module.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.
Based on the same inventive concept, the embodiment of the application also provides a fan duty ratio determining device for realizing the fan duty ratio determining method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the one or more fan duty ratio determining devices provided below may refer to the limitation of the fan duty ratio determining method hereinabove, and will not be repeated herein.
In one embodiment, as shown in fig. 6, a fan duty cycle determining apparatus 600 is provided, including a first obtaining module 601, a first determining module 602, a second obtaining module 603, and a second determining module 604, wherein:
a first obtaining module 601, configured to obtain an air outlet temperature of the charging pile charging module;
the first determining module 602 is configured to determine a first temperature difference between the air outlet temperature and a first preset temperature threshold if the air outlet temperature is greater than the first preset temperature threshold;
the second obtaining module 603 is configured to obtain an air inlet temperature of the charging pile charging module and a fan duty ratio of the charging pile charging module, and determine a second temperature difference between the air inlet temperature and the air outlet temperature;
The second determining module 604 is configured to determine a duty cycle of the charging pile system according to the first temperature difference, the second temperature difference, and a fan duty cycle of the charging pile charging module.
In one embodiment, the second determining module 604 includes:
A first determining unit configured to determine a first duty ratio according to a first temperature difference;
And the second determining unit is used for determining a maximum duty ratio according to the first duty ratio and the fan duty ratio of the charging pile charging module if the second temperature difference is smaller than or equal to a second preset temperature threshold value, and determining the maximum duty ratio as the duty ratio of the charging pile system, wherein the maximum duty ratio is the maximum value of the first duty ratio and the fan duty ratio of the charging pile charging module.
In one embodiment, the first determining unit is further configured to obtain a plurality of preset temperature ranges, obtain a duty cycle corresponding to each preset temperature range, obtain a preset temperature range corresponding to a first temperature difference, and determine the first duty cycle according to the preset temperature range corresponding to the obtained first temperature difference.
In one embodiment, the second determining module 604 is further configured to determine the maximum duty cycle of the fan of the charging pile system as the duty cycle of the charging pile system if the second temperature difference is greater than the second preset temperature threshold, where the maximum duty cycle of the fan of the charging pile system is the duty cycle corresponding to the maximum design air volume of the fan of the charging pile system.
In one embodiment, the fan duty cycle determining apparatus 600 is further configured to continue to operate the charging pile system fan according to the current duty cycle if the air outlet temperature is less than or equal to the first preset temperature threshold.
In one embodiment, the fan duty cycle determination device 600 is further configured to send an alarm signal if the second temperature difference is greater than a third preset temperature threshold.
The respective modules in the fan duty ratio determining device described above may be implemented in whole or in part by software, hardware, or a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.
In one embodiment, a computer device is provided, which may be a terminal, and the internal structure of which may be as shown in fig. 7. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program when executed by a processor implements a method of fan duty cycle determination. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the structure shown in FIG. 7 is merely a block diagram of some of the structures associated with the present inventive arrangements and is not limiting of the computer device to which the present inventive arrangements may be applied, and that a particular computer device may include more or fewer components than shown, or may combine some of the components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to realize the steps of obtaining the air outlet temperature of a charging pile charging module, determining a first temperature difference between the air outlet temperature and a first preset temperature threshold value if the air outlet temperature is greater than the first preset temperature threshold value, obtaining the air inlet temperature of the charging pile charging module and a fan duty ratio of the charging pile charging module, determining a second temperature difference between the air inlet temperature and the air outlet temperature, and determining the duty ratio of a charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module.
In one embodiment, the processor determines the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, wherein the duty cycle is realized when executing the computer program and comprises the steps of determining the first duty cycle according to the first temperature difference, determining the maximum duty cycle according to the first duty cycle and the fan duty cycle of the charging pile charging module if the second temperature difference is smaller than or equal to a second preset temperature threshold, and determining the maximum duty cycle as the duty cycle of the charging pile system, wherein the maximum duty cycle is the maximum value of the first duty cycle and the fan duty cycle of the charging pile charging module.
In one embodiment, determining the first duty cycle according to the first temperature difference, which is implemented when the processor executes the computer program, includes obtaining a plurality of preset temperature ranges, obtaining a duty cycle corresponding to each preset temperature range, obtaining a preset temperature range corresponding to the first temperature difference, and determining the first duty cycle according to the preset temperature range corresponding to the obtained first temperature difference.
In one embodiment, the processor determines the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module, which are implemented when executing the computer program, and further comprises determining the maximum duty ratio of the charging pile system fan as the duty ratio of the charging pile system if the second temperature difference is greater than a second preset temperature threshold, wherein the maximum duty ratio of the charging pile system fan is the duty ratio corresponding to the maximum design air volume of the charging pile system fan.
In one embodiment, the method implemented by the processor when executing the computer program further comprises the step of continuing to operate the charging pile system fan according to the current duty cycle if the air outlet temperature is less than or equal to a first preset temperature threshold.
In one embodiment, the method implemented by the processor when executing the computer program further comprises sending an alarm signal if the second temperature difference is greater than a third preset temperature threshold.
In one embodiment, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor performs the steps of obtaining an air outlet temperature of a charging pile charging module, determining a first temperature difference between the air outlet temperature and a first preset temperature threshold if the air outlet temperature is greater than the first preset temperature threshold, obtaining an air inlet temperature of the charging pile charging module and a fan duty cycle of the charging pile charging module, determining a second temperature difference between the air inlet temperature and the air outlet temperature, and determining a duty cycle of a charging pile system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pile charging module.
In one embodiment, the computer program when executed by the processor determines the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, including determining the first duty cycle according to the first temperature difference, determining the maximum duty cycle according to the first duty cycle and the fan duty cycle of the charging pile charging module if the second temperature difference is less than or equal to a second preset temperature threshold, and determining the maximum duty cycle as the duty cycle of the charging pile system, wherein the maximum duty cycle is the maximum of the first duty cycle and the fan duty cycle of the charging pile charging module.
In one embodiment, determining the first duty cycle based on the first temperature difference, which is implemented when the computer program is executed by the processor, includes obtaining a plurality of preset temperature ranges, obtaining a duty cycle corresponding to each preset temperature range, obtaining a preset temperature range corresponding to the first temperature difference, and determining the first duty cycle based on the obtained preset temperature range corresponding to the first temperature difference.
In one embodiment, the computer program when executed by the processor determines the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, and further comprises determining the maximum duty cycle of the charging pile system fan as the duty cycle of the charging pile system if the second temperature difference is greater than a second preset temperature threshold, wherein the maximum duty cycle of the charging pile system fan is the duty cycle corresponding to the maximum design air volume of the charging pile system fan.
In one embodiment, the method implemented when the computer program is executed by the processor further comprises continuing to operate the charging pile system fan according to the current duty cycle if the air outlet temperature is less than or equal to a first preset temperature threshold.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises issuing an alarm signal if the second temperature difference is greater than a third preset temperature threshold.
In one embodiment, a computer program product is provided that includes a computer program that when executed by a processor performs the steps of obtaining an air outlet temperature of a charging pile charging module, determining a first temperature difference between the air outlet temperature and a first preset temperature threshold if the air outlet temperature is greater than the first preset temperature threshold, obtaining an air inlet temperature of the charging pile charging module and a fan duty cycle of the charging pile charging module, determining a second temperature difference between the air inlet temperature and the air outlet temperature, and determining a duty cycle of a charging pile system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pile charging module.
In one embodiment, the computer program when executed by the processor determines the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, including determining the first duty cycle according to the first temperature difference, determining the maximum duty cycle according to the first duty cycle and the fan duty cycle of the charging pile charging module if the second temperature difference is less than or equal to a second preset temperature threshold, and determining the maximum duty cycle as the duty cycle of the charging pile system, wherein the maximum duty cycle is the maximum of the first duty cycle and the fan duty cycle of the charging pile charging module.
In one embodiment, determining the first duty cycle based on the first temperature difference, which is implemented when the computer program is executed by the processor, includes obtaining a plurality of preset temperature ranges, obtaining a duty cycle corresponding to each preset temperature range, obtaining a preset temperature range corresponding to the first temperature difference, and determining the first duty cycle based on the obtained preset temperature range corresponding to the first temperature difference.
In one embodiment, the computer program when executed by the processor determines the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty cycle of the charging pile charging module, and further comprises determining the maximum duty cycle of the charging pile system fan as the duty cycle of the charging pile system if the second temperature difference is greater than a second preset temperature threshold, wherein the maximum duty cycle of the charging pile system fan is the duty cycle corresponding to the maximum design air volume of the charging pile system fan.
In one embodiment, the method implemented when the computer program is executed by the processor further comprises continuing to operate the charging pile system fan according to the current duty cycle if the air outlet temperature is less than or equal to a first preset temperature threshold.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises issuing an alarm signal if the second temperature difference is greater than a third preset temperature threshold.
The user information (including but not limited to user equipment information, user personal information, etc.) and the data (including but not limited to data for analysis, stored data, presented data, etc.) related to the present application are information and data authorized by the user or sufficiently authorized by each party.
Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided herein may include at least one of non-volatile and volatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magneto-resistive random access Memory (Magnetoresistive RandomAccess Memory, MRAM), ferroelectric Memory (Ferroelectric RandomAccess Memory, FRAM), phase change Memory (PHASE CHANGE Memory, PCM), graphene Memory, and the like. Volatile memory can include random access memory (RandomAccess Memory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can be in various forms such as static random access memory (Static RandomAccess Memory, SRAM) or dynamic random access memory (Dynamic RandomAccess Memory, DRAM), etc. The databases referred to in the embodiments provided herein may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processor referred to in the embodiments provided in the present application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic unit, a data processing logic unit based on quantum computing, or the like, but is not limited thereto.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the application and are described in detail herein without thereby limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be assessed as that of the appended claims.
Claims (10)
1. A method for determining a duty cycle of a fan, the method comprising:
acquiring the temperature of an air outlet of a charging module of the charging pile;
if the air outlet temperature is greater than a first preset temperature threshold, determining a first temperature difference between the air outlet temperature and the first preset temperature threshold;
if the air outlet temperature is greater than the first preset temperature threshold, acquiring the air inlet temperature of the charging pile charging module and the fan duty ratio of the charging pile charging module, and determining a second temperature difference between the air inlet temperature and the air outlet temperature;
Determining the duty ratio of a charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module;
The determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module comprises the following steps:
determining a first duty ratio according to the first temperature difference, determining a second duty ratio according to the second temperature difference, comparing the magnitudes among the first duty ratio, the second duty ratio and the fan duty ratio, and determining the maximum duty ratio among the three as the duty ratio of the charging pile system.
2. The method of claim 1, wherein the determining the duty cycle of the charging pile system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pile charging module comprises:
And if the second temperature difference is smaller than or equal to a second preset temperature threshold, determining a maximum duty ratio according to the first duty ratio and the fan duty ratio of the charging pile charging module, and determining the maximum duty ratio as the duty ratio of the charging pile system, wherein the maximum duty ratio is the maximum value of the first duty ratio and the fan duty ratio of the charging pile charging module.
3. The method of claim 2, wherein said determining a first duty cycle from said first temperature difference comprises:
acquiring a plurality of preset temperature ranges;
acquiring a duty ratio corresponding to each preset temperature range;
and acquiring the preset temperature range corresponding to the first temperature difference, and determining the first duty ratio according to the acquired preset temperature range corresponding to the first temperature difference.
4. The method of claim 1, wherein the determining the duty cycle of the charging stake system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging stake charging module further comprises:
And if the second temperature difference is greater than a second preset temperature threshold, determining the maximum duty ratio of the charging pile system fan as the duty ratio of the charging pile system, wherein the maximum duty ratio of the charging pile system fan is the duty ratio corresponding to the maximum design air quantity of the charging pile system fan.
5. The method according to claim 1, wherein the method further comprises:
and if the temperature of the air outlet is smaller than or equal to the first preset temperature threshold, the charging pile system fan continues to operate according to the current duty ratio.
6. The method according to claim 1, wherein the method further comprises:
and if the second temperature difference is larger than a third preset temperature threshold value, sending out an alarm signal.
7. A fan duty cycle determination apparatus, the apparatus comprising:
the first acquisition module is used for acquiring the air outlet temperature of the charging pile charging module;
the first determining module is used for determining a first temperature difference between the air outlet temperature and a first preset temperature threshold value if the air outlet temperature is greater than the first preset temperature threshold value;
the second acquisition module is used for acquiring the air inlet temperature of the charging pile charging module and the fan duty ratio of the charging pile charging module if the air outlet temperature is greater than the first preset temperature threshold value, and determining a second temperature difference between the air inlet temperature and the air outlet temperature;
The second determining module is used for determining the duty ratio of the charging pile system according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile charging module;
The second determining module is further configured to determine a first duty ratio according to the first temperature difference, determine a second duty ratio according to the second temperature difference, compare magnitudes among the first duty ratio, the second duty ratio and the fan duty ratio, and determine a maximum duty ratio among the three as a duty ratio of the charging pile system.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
9. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| CN116221162B (en) * | 2023-02-28 | 2024-12-27 | 深圳市道通合创数字能源有限公司 | Charging pile fan speed regulation method and device, charging pile and computer storage medium |
| CN118670958B (en) * | 2024-08-22 | 2024-11-26 | 浙江大华技术股份有限公司 | Method and device for detecting filter screen failure |
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