CN115370600A - Method, device, equipment, medium and product for determining duty ratio of fan - Google Patents
Method, device, equipment, medium and product for determining duty ratio of fan Download PDFInfo
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- CN115370600A CN115370600A CN202211006235.2A CN202211006235A CN115370600A CN 115370600 A CN115370600 A CN 115370600A CN 202211006235 A CN202211006235 A CN 202211006235A CN 115370600 A CN115370600 A CN 115370600A
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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
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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
- Y02T10/7072—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
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- Engineering & Computer Science (AREA)
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- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application relates to a method and a device for determining a duty ratio of a fan, computer equipment, a storage medium and a computer program product. The method comprises the following steps: firstly, the air outlet temperature of a 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 fan duty ratio 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 a 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. According to the method, the duty ratio of the charging pile system can be determined 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 the air volume of the fan of the charging pile system is adjusted according to the duty ratio 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 a 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 forms of energy battery charging and replacing technical field, to the high-power demand of charging of electric motor car more and more high, fill the inside of electric pile and need dispose more and more modules that charge, simultaneously, for guaranteeing to fill electric pile size compactness, the module that charges need compress the size as far as, accomplishes extremely delightfully. However, because the charging module can generate a large amount of heat in the operation process, the design of compressing the size of the charging module can cause that the heating of the unit volume of the charging module is very serious, the temperature is too high, components inside the charging module are damaged, and further the operation fault of the charging pile is caused, so that 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 charging piles on the market mostly adopts the constant rotational speed mode of airing exhaust of charging pile system fan. But the heating value of the charging pile is little when the charging pile operates at low power output, and the heating value is very large when the charging pile operates at high power output. That is to say as long as fill electric pile and carry out the output that charges, fill the inside all fans of electric pile and all operate at full speed, this kind of radiating mode has not only wasted the electric energy, produces very big noise, and the long-time full speed operation of fan can be more easily ageing moreover, shortens the operation life-span.
Disclosure of Invention
In view of the foregoing, it is necessary to provide a method, an apparatus, a computer device, a computer readable storage medium, and a computer program product for determining a duty ratio of a fan, which can adjust an air volume of a charging pile system according to an actual demand.
In a first aspect, the present application provides a method for determining a duty ratio of a fan, where the method includes:
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 value, determining a first temperature difference between the air outlet temperature and the first preset temperature threshold value;
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 duty ratio of the fan 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 duty ratio of the fan 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 value, 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 a first duty cycle based on the 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 preset temperature range corresponding to the acquired 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 duty ratio of the fan of the charging pile charging module further includes:
and if the second temperature difference is larger than a second preset temperature threshold value, 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 volume of the charging pile system fan.
In one embodiment, the method further comprises:
and if the temperature of the air outlet is less than or equal to the first preset temperature threshold value, the fan of the charging pile system continuously operates 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, an alarm signal is sent out.
In a second aspect, the present application further provides a fan duty ratio determining apparatus, including:
the first acquisition module is used for acquiring the temperature of an air outlet of the charging module of the charging pile;
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 and determining a second temperature difference between the air inlet temperature and the air outlet temperature;
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 in any of the embodiments described above when executing the computer program.
In a fourth aspect, the present application further provides a computer-readable storage medium. The computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, carries out the steps of the method in any of the above-mentioned embodiments.
In a fifth aspect, the present application further provides a computer program product. The computer program product comprising a computer program which, when executed by a processor, carries out the steps of the method in any of the embodiments described above.
According to the fan duty ratio determining method, the fan duty ratio determining device, the computer equipment, the storage medium and the computer program product, 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 fan duty ratio 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 fan duty ratio of the charging pile charging module. According to the method, the duty ratio of the charging pile system can be determined 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 the air volume of the fan of the charging pile system is adjusted according to the duty ratio of the charging pile system.
Drawings
FIG. 1 is a diagram of an exemplary implementation of a method for determining a duty cycle of a wind turbine;
FIG. 2 is a flow chart illustrating a method for determining a duty cycle of a fan according to an embodiment;
fig. 3 is a graph of a correspondence between a preset temperature range and a duty cycle of the charging pile system in one embodiment;
FIG. 4 is a schematic structural diagram of a method for determining a duty cycle of a fan according to an embodiment;
FIG. 5 is a schematic flow chart diagram illustrating a method for determining a fan duty cycle in one embodiment;
FIG. 6 is a block diagram of an exemplary fan duty ratio determining apparatus;
FIG. 7 is a diagram of the internal structure of a computer device in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
The method for determining the duty ratio of the fan can be applied to a charging pile system 11 shown in fig. 1, and the charging pile system includes 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 at the air outlet of the charging module 112 is collected by the temperature sensor 114 located at the air outlet of the charging module 112, the air outlet temperature of the charging module 112 is obtained by the charging pile controller 111, if the air outlet temperature is greater than a first preset temperature threshold, a first temperature difference between the air outlet temperature and the first preset temperature threshold is determined by the charging pile controller 111, then the temperature at the air inlet of the charging module 112 is collected by the temperature sensor 114 located at the air inlet of the charging module 112, the air inlet temperature of the charging module 112 and the fan duty ratio of the charging module 112 are obtained by the charging pile controller 111, then a second temperature difference between the air inlet temperature and the air outlet temperature is determined by the charging pile controller 111, and the duty ratio of the system fan 113 is determined by the charging pile controller 111 according to the first temperature difference, the second temperature difference and the fan duty ratio of the charging pile.
In one embodiment, as shown in fig. 2, a method for determining a duty cycle of a wind turbine is provided, which is described by taking the method as an example for being applied to the charging pile controller 111 in fig. 1, 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 for supplying electric energy to the automobile. 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 plurality of temperature sensors at the air outlet of the charging module, and then the average value of the obtained temperatures is calculated to obtain the temperature of the air outlet of the charging module. The controller 111 acquires the air outlet temperature of the charging pile charging module.
S202, if the temperature of the air outlet is larger than a first preset temperature threshold value, determining a first temperature difference between the temperature of the air outlet and the first preset temperature threshold value.
After charging the electric pile controller and determining the wind gap temperature, still need judge whether air outlet temperature is greater than first preset temperature threshold value, wherein, first preset temperature threshold value is confirmed according to the heat dispersion that fills electric pile, for example, if the heat dispersion that fills electric pile is stronger, then can set up lower first preset temperature threshold value, when air outlet temperature is greater than first preset temperature threshold value, show that the amount of wind that fills the electric pile fan this moment is not enough will fill the interior heat of electric pile and normally discharge, need increase the amount of wind.
The first temperature difference is a temperature difference value obtained by subtracting a first preset temperature threshold value from the air outlet temperature.
S203, 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.
The second temperature difference is a temperature difference obtained by subtracting the temperature of the air inlet from the temperature of the air outlet.
And under the condition that the temperature of the air outlet is greater than a first preset temperature threshold value, acquiring the temperature of an air inlet of the charging module and the duty ratio of a fan of the charging module by the charging pile controller.
A plurality of temperature sensors are arranged at the air inlet of the charging module, the charging pile controller acquires the temperatures acquired by the plurality of temperature sensors at the air inlet of the charging module, then the average value of the acquired temperatures is calculated to obtain the temperature of the air inlet of the charging module, and finally the temperature difference value obtained by subtracting the temperature of the air inlet from the temperature of the air outlet is utilized.
The fan duty ratio of the charging module is an actual duty ratio of a fan in the charging module during operation, where the fan duty ratio is used to characterize an air volume of the fan, for example, a maximum air volume of the fan is 1000CFM, and the duty ratio of the fan at a certain time is 10%, then the actual air volume of the fan at this time is 1000 × 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.
This step is accomplished in filling the electric pile controller, fill the electric pile controller and include the error controller, PWM (Pulse Width Modulation) regulator and comparator, wherein, the error controller is used for judging whether the module air outlet temperature that charges is greater than first preset temperature threshold value, the PWM regulator is used for obtaining first duty cycle according to first difference in temperature and obtains the second duty cycle according to the second difference in temperature, the comparator is used for comparing first duty cycle, the size of second duty cycle and the fan duty cycle three of the module that charges to confirm the biggest duty cycle among the three as filling the duty cycle of electric pile system.
The duty ratio of the charging pile system is the duty ratio required by fans of the charging pile system during 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 including F1, F2, F3 and F4, after the duty ratio of the charging pile system is determined by a comparator, the duty ratio of the charging pile system is simultaneously sent to the 4 fans of the charging pile system by a PWM (pulse width modulation) regulator, and the air volume of each fan of the charging pile system is regulated according to the received fan duty ratio.
According to the method for determining the duty ratio of the fan, the temperature of the air outlet of the charging pile charging module is firstly obtained, if the temperature of the air outlet is larger than a first preset temperature threshold value, a first temperature difference between the temperature of the air outlet and the first preset temperature threshold value is determined, then 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 are obtained, a second temperature difference between the temperature of the air inlet and the temperature of the air outlet 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. According to the method, the duty ratio of the charging pile system can be determined 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 the air volume of the fan of the charging pile system is adjusted according to the duty ratio of the charging pile system.
In some embodiments, determining the duty cycle of the charging post system based on the first temperature difference, the second temperature difference, and the duty cycle of the fan of the charging post charging module comprises: determining a first duty cycle from the first temperature difference; and if the second temperature difference is smaller than or equal to a second preset temperature threshold value, determining the 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 this step, the PWM regulator determines a corresponding first duty cycle according to the first temperature difference. The second preset temperature threshold is determined according to the heat dissipation performance of the charging pile system, when the second temperature difference is smaller than or equal to the second preset temperature threshold, it is indicated 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, and at the moment, the influence of the outlet temperature of the charging module and the fan duty ratio of the charging module on the heat dissipation of the charging pile system is only required to be considered.
According to the method provided by the step, whether the influence of the temperature difference between the inlet and the outlet of the charging module on the heat dissipation of the charging pile system needs to be considered or not can be determined by setting the second preset temperature threshold, and if the influence does not need to be considered, the workload of the PWM regulator and the workload of the comparator can be reduced.
In some embodiments, determining the first duty cycle from the first temperature difference comprises: acquiring a plurality of preset temperature ranges; acquiring a duty ratio corresponding to each preset temperature range; and acquiring a preset temperature range corresponding to the first temperature difference, and determining a first duty ratio according to the preset temperature range corresponding to the acquired first temperature difference.
In the step, each preset temperature range has a duty ratio corresponding to the preset temperature range, and the corresponding relation 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, the corresponding relationship between the preset temperature range and the duty ratio of the charging pile system is shown in fig. 3, when the preset temperature range is 0-40 ℃, the duty ratio of the charging pile system is 30%, when the preset temperature range is 40-60 ℃, the duty ratio of the charging pile system linearly changes 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 can be known as 65% according to the corresponding relationship in fig. 2.
According to the method provided by the step, the first duty ratio is determined according to the corresponding relation between the preset temperature range and the duty ratio of the charging pile system, so that the air quantity of the fan of the charging pile system can be accurately adjusted, the system fan can run at a lower speed when low-power charging is realized, and the system fan can run at a higher speed when high-power charging is realized, so that the energy consumption of the fan is reduced to the maximum extent, and the noise output is reduced.
In some embodiments, determining the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference, and the duty cycle of the fan of the charging pile charging module further includes: and if the second temperature difference is larger than a second preset temperature threshold value, determining the maximum duty ratio of the fan of the charging pile system as the duty ratio of the charging pile system, wherein the maximum duty ratio of the fan of the charging pile system is the duty ratio corresponding to the maximum design air volume of the fan of the charging pile system.
In this step, when the second temperature difference is greater than the second preset temperature threshold, it is described that the temperature difference between the inlet and the outlet of the charging module is the factor that affects the heat dissipation of the charging pile system most, and in order to achieve normal heat dissipation of the system, a system fan needs to operate with the maximum air volume, and at this time, the duty ratio of the system is the duty ratio corresponding to the maximum design air volume, namely 100%.
According to the method provided by the step, when the second temperature difference is larger than the second preset temperature threshold value, the system directly operates at a 100% duty ratio, heat can be effectively dissipated, and damage to components and parts due to overhigh temperature of the system is prevented.
In some embodiments, the above method further comprises: if the temperature of the air outlet is smaller than or equal to a first preset temperature threshold value, the fan of the charging pile system continues to operate according to the current duty ratio.
In this step, when the air outlet temperature is less than or equal to the first preset temperature threshold, it is normal that the heat dissipation of charging pile system is normal, there is not the danger of overheated operation, consequently, need not adjust system's fan amount of wind, and system's duty cycle continues to operate just according to the present value.
According to the method provided by the step, when the temperature of the air outlet is less than or equal to the first preset temperature threshold value, the air speed of the system fan is not adjusted, the energy consumption of the fan can be reduced to the maximum extent, and the noise can be reduced.
In some embodiments, the above method further comprises: and if the second temperature difference is greater than a third preset temperature threshold value, sending an alarm signal.
In this step, the third preset temperature threshold is the maximum temperature difference between the inlet and 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 can send out an alarm signal to remind a worker to timely shut down the system or other corresponding measures.
According to the method provided by the step, when the second temperature difference is larger than the third preset temperature threshold value, the alarm signal is sent out, the staff can be reminded to deal with the alarm signal in time, and danger can be effectively prevented.
In an embodiment, as shown in fig. 4 and 5, fig. 4 is a schematic structural diagram of a charging pile system in an embodiment, fig. 5 is a flowchart of a principle of determining a duty ratio of a fan in an embodiment, as can be seen from fig. 4, an internal system fan is provided 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 a charging pile controller is a PWM speed-regulating control board. The method comprises the steps that a PWM speed regulation control board obtains temperatures measured by temperature sensors PT3 and PT4, the average value of the temperatures measured by the PT3 and PT4 is calculated to obtain the air outlet temperature of a 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 value, a fan of a 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 value, at the moment, the PWM speed regulation control board obtains the fan duty ratio of the charging module and the temperatures measured by the temperature sensors PT1 and PT2, calculates a first temperature difference between the air outlet temperature and the first preset temperature threshold value 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 value, the maximum duty ratio of the fan of the charging pile system is determined as 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 value, the duty ratio of the charging pile system is determined according to the first duty ratio of the charging pile system and the fan duty ratio of the charging pile module.
It should be understood that, although the steps in the flowcharts related to the embodiments described above are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least a part of the steps in the flowcharts related to the embodiments described above may include multiple steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the execution order of the steps or stages is not necessarily sequential, but may be rotated or alternated with other steps or at least a part of the steps or stages in other steps.
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 scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the method, so that specific limitations in one or more embodiments of the fan duty ratio determining device provided below can be referred to the limitations on the fan duty ratio determining method in the foregoing, and details are not repeated herein.
In one embodiment, as shown in fig. 6, there is provided a fan duty cycle determination apparatus 600, including: a first obtaining module 601, a first determining module 602, a second obtaining module 603, and a second determining module 604, wherein:
the first obtaining module 601 is used for obtaining the air outlet temperature of the charging module of the charging pile;
a first determining module 602, 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;
a second obtaining module 603, 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;
and a second determining module 604, configured to determine a duty cycle of the charging pile system according to the first temperature difference, the second temperature difference, and a duty cycle of a fan of the charging pile charging module.
In one embodiment, the second determining module 604 includes:
a first determining unit for determining a first duty ratio according to the first temperature difference;
and the second determining unit is used for determining the 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 determination unit is further configured to: acquiring a plurality of preset temperature ranges; acquiring a duty ratio corresponding to each preset temperature range; and acquiring a preset temperature range corresponding to the first temperature difference, and determining a first duty ratio according to the preset temperature range corresponding to the acquired first temperature difference.
In one embodiment, the second determining module 604 is further configured to: and if the second temperature difference is larger than a second preset temperature threshold value, determining the maximum duty ratio of the fan of the charging pile system as the duty ratio of the charging pile system, wherein the maximum duty ratio of the fan of the charging pile system is the duty ratio corresponding to the maximum design air volume of the fan of the charging pile system.
In one embodiment, the fan duty cycle determination device 600 is further configured to: if the temperature of the air outlet is smaller than or equal to a first preset temperature threshold value, the fan of the charging pile system continues to operate according to the current duty ratio.
In one embodiment, the fan duty cycle determination device 600 is further configured to: and if the second temperature difference is greater than a third preset temperature threshold value, sending an alarm signal.
All or part of the modules in the fan duty ratio determination device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram 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 comprises a nonvolatile 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 an operating system and computer programs in the non-volatile storage medium. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement 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, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
It will be appreciated by those skilled in the art that the configuration shown in fig. 7 is a block diagram of only a portion of the configuration associated with the present application, and is not intended to limit the computing device to which the present application may be applied, and that a particular computing device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program: acquiring the temperature of an air outlet of a charging module of the charging pile; 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; acquiring the air inlet temperature of a 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; and determining 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.
In one embodiment, the determining the duty cycle of the charging pile system according to the first temperature difference, the second temperature difference and the duty cycle of the fan of the charging pile charging module, which is realized when the processor executes the computer program, 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 value, determining the 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 a first duty cycle from the first temperature difference as implemented by the processor executing the computer program comprises: acquiring a plurality of preset temperature ranges; acquiring a duty ratio corresponding to each preset temperature range; and acquiring a preset temperature range corresponding to the first temperature difference, and determining a first duty ratio according to the preset temperature range corresponding to the acquired first temperature difference.
In one embodiment, the 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 when the processor executes the computer program further comprises: and if the second temperature difference is larger than a second preset temperature threshold value, determining the maximum duty ratio of the fan of the charging pile system as the duty ratio of the charging pile system, wherein the maximum duty ratio of the fan of the charging pile system is the duty ratio corresponding to the maximum design air volume of the fan of the charging pile system.
In one embodiment, the above method implemented when the processor executes the computer program further comprises: if the temperature of the air outlet is smaller than or equal to a first preset temperature threshold value, the fan of the charging pile system continues to operate according to the current duty ratio.
In one embodiment, the above method implemented when the processor executes the computer program further comprises: and if the second temperature difference is larger than a third preset temperature threshold value, an alarm signal is sent out.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, which when executed by a processor, performs the steps of: acquiring the temperature of an air outlet of a charging module of the charging pile; if the temperature of the air outlet is greater than a first preset temperature threshold value, determining a first temperature difference between the temperature of the air outlet and the first preset temperature threshold value; acquiring the air inlet temperature of a 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; and determining 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.
In one embodiment, determining the duty cycle of the charging pole system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pole charging module, when the computer program is executed by the processor, comprises: determining a first duty cycle from the first temperature difference; and if the second temperature difference is smaller than or equal to a second preset temperature threshold value, determining the 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 a first duty cycle from a first temperature difference implemented when the computer program is executed by the processor comprises: acquiring a plurality of preset temperature ranges; acquiring a duty ratio corresponding to each preset temperature range; and acquiring a preset temperature range corresponding to the first temperature difference, and determining a first duty ratio according to the preset temperature range corresponding to the acquired first temperature difference.
In one embodiment, the computer program, when executed by the processor, implements determining a duty cycle of the charging pole system based on the first temperature difference, the second temperature difference, and a fan duty cycle of the charging pole charging module, further comprising: and if the second temperature difference is larger than a second preset temperature threshold value, determining the maximum duty ratio of the fan of the charging pile system as the duty ratio of the charging pile system, wherein the maximum duty ratio of the fan of the charging pile system is the duty ratio corresponding to the maximum design air volume of the fan of the charging pile system.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises: if the temperature of the air outlet is smaller than or equal to a first preset temperature threshold value, the fan of the charging pile system continues to operate according to the current duty ratio.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises: and if the second temperature difference is larger than a third preset temperature threshold value, an alarm signal is sent out.
In one embodiment, a computer program product is provided, comprising a computer program which when executed by a processor performs the steps of: acquiring the temperature of an air outlet of a charging module of the charging pile; if the temperature of the air outlet is greater than a first preset temperature threshold value, determining a first temperature difference between the temperature of the air outlet and the first preset temperature threshold value; acquiring the air inlet temperature of a 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; and determining 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.
In one embodiment, determining the duty cycle of the charging pole system based on the first temperature difference, the second temperature difference, and the fan duty cycle of the charging pole charging module, when the computer program is executed by the processor, comprises: determining a first duty cycle from the first temperature difference; and if the second temperature difference is smaller than or equal to a second preset temperature threshold value, determining the 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 a first duty cycle from a first temperature difference, as performed by the computer program when executed by the processor, comprises: acquiring a plurality of preset temperature ranges; acquiring a duty ratio corresponding to each preset temperature range; and acquiring a preset temperature range corresponding to the first temperature difference, and determining a first duty ratio according to the preset temperature range corresponding to the acquired first temperature difference.
In one embodiment, the computer program, when executed by the processor, implements determining a duty cycle of the charging pole system based on the first temperature difference, the second temperature difference, and a fan duty cycle of the charging pole charging module, further comprising: and if the second temperature difference is larger than a second preset temperature threshold value, determining the maximum duty ratio of the fan of the charging pile system as the duty ratio of the charging pile system, wherein the maximum duty ratio of the fan of the charging pile system is the duty ratio corresponding to the maximum design air volume of the fan of the charging pile system.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises: if the temperature of the air outlet is smaller than or equal to a first preset temperature threshold value, the fan of the charging pile system continues to operate according to the current duty ratio.
In one embodiment, the above method implemented when the computer program is executed by the processor further comprises: and if the second temperature difference is greater than a third preset temperature threshold value, sending an alarm signal.
It should be noted that, the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, presented data, etc.) referred to in the present application are information and data authorized by the user or sufficiently authorized by each party.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, databases, or other media used in the embodiments provided herein can 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), magnetic Random Access Memory (MRAM), ferroelectric Random Access Memory (FRAM), phase Change Memory (PCM), graphene Memory, and the like. Volatile Memory can include Random Access Memory (RAM), external cache Memory, and the like. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM), for example. The databases involved in the embodiments provided herein may include at least one of relational and non-relational databases. The non-relational database may include, but is not limited to, a block chain based distributed database, and the like. The processors referred to in the embodiments provided herein may be general purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing based data processing logic devices, etc., without limitation.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. A method for determining a duty ratio of a fan is characterized by comprising the following steps:
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 air inlet temperature of a 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;
and determining the duty ratio of a charging pile system according to the first temperature difference, the second temperature difference and the duty ratio of a fan of the charging pile charging module.
2. The method of claim 1, wherein determining the duty cycle of the charging post system based on the first temperature difference, the second temperature difference, and a fan duty cycle of the charging post charging module comprises:
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 value, 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 determining a first duty cycle from the 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 preset temperature range corresponding to the acquired first temperature difference.
4. The method of claim 1, wherein determining the duty cycle of the charging post system based on the first temperature difference, the second temperature difference, and a fan duty cycle of the charging post charging module further comprises:
and if the second temperature difference is larger than a second preset temperature threshold value, 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 volume of the charging pile system fan.
5. The method of claim 1, further comprising:
and if the temperature of the air outlet is less than or equal to the first preset temperature threshold value, the fan of the charging pile system continuously operates according to the current duty ratio.
6. The method of claim 1, further comprising:
and if the second temperature difference is greater than a third preset temperature threshold value, sending an alarm signal.
7. A fan duty cycle determining apparatus, the apparatus comprising:
the first acquisition module is used for acquiring the temperature of an air outlet of the charging module of the charging pile;
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 and determining a second temperature difference between the air inlet temperature and the air outlet temperature;
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.
8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 6.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program realizes the steps of the method of any one of claims 1 to 6 when executed by a processor.
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| CN202211006235.2A CN115370600A (en) | 2022-08-22 | 2022-08-22 | Method, device, equipment, medium and product for determining duty ratio of fan |
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| CN202211006235.2A CN115370600A (en) | 2022-08-22 | 2022-08-22 | Method, device, equipment, medium and product for determining duty ratio of fan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI835558B (en) * | 2023-02-15 | 2024-03-11 | 神雲科技股份有限公司 | Fan control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI835558B (en) * | 2023-02-15 | 2024-03-11 | 神雲科技股份有限公司 | Fan control method |
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