WO2023029549A1 - 电控盒的加热控制方法、装置以及空调器 - Google Patents
电控盒的加热控制方法、装置以及空调器 Download PDFInfo
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- WO2023029549A1 WO2023029549A1 PCT/CN2022/091549 CN2022091549W WO2023029549A1 WO 2023029549 A1 WO2023029549 A1 WO 2023029549A1 CN 2022091549 W CN2022091549 W CN 2022091549W WO 2023029549 A1 WO2023029549 A1 WO 2023029549A1
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- Prior art keywords
- control box
- electric control
- temperature
- heating
- circulation fan
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1902—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value
- G05D23/1904—Control of temperature characterised by the use of electric means characterised by the use of a variable reference value variable in time
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/0014—Devices wherein the heating current flows through particular resistances
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/02—Heaters using heating elements having a positive temperature coefficient
Definitions
- the present application relates to the technical field of air-conditioning equipment, in particular to a heating control method and device for an electric control box, and an air conditioner.
- the existing air-conditioning equipment usually has a heating component inside, so that when the ambient temperature is low, the heating component is used to heat the electric control box in the air-conditioning equipment.
- using heating components for heating may have hidden dangers such as high dry-burning temperature, which will cause a greater probability of damage to components inside the electric control box.
- the main purpose of this application is to provide a heating control method and device for an electric control box and an air conditioner, aiming to solve the technical problem that the components inside the electric control box are more likely to be damaged when the heating component is heated.
- the heating control method of the electric control box provided by the present application includes:
- the controller of the air conditioner first acquires the detected temperature of the temperature sensor in the electric control box. Subsequently, the controller of the air conditioner controls the heating assembly in the electric control box to heat the electric control box according to the detected temperature. Finally, the controller of the air conditioner sequentially drives the circulation fan in the electric control box to perform internal circulation heating of the electric control box according to the heating time of the heating component.
- the heating component is controlled by detecting the temperature to heat the electric control box, and the circulation fan is controlled to perform internal circulation heating, thereby reducing the probability of damage to the components inside the electric control box caused by the excessive temperature in the accessories area of the heating component .
- the circulation fan includes a first circulation fan and a second circulation fan
- the first circulation fan is used to blow the air in the electric control box to the first direction of the first circulation fan
- the second circulation fan is used to blow the air in the electric control box to the second direction of the second circulation fan
- the first circulation fan is adjacent to the heating assembly
- the second circulation fan is located at In the first direction of the first circulation fan
- the first circulation fan is located in the second direction of the second circulation fan.
- the first circulation fan and the second circulation fan can form air circulation during operation, thereby realizing circulation and heat dissipation inside the electric control box.
- sequentially driving the circulation fan in the electric control box to heat the electric control box internally circulates including: if the heating time of the heating component exceeds the first time threshold, then drive the first circulation fan to run.
- sequentially driving the circulation fan in the electric control box to perform internal circulation heating on the electric control box further comprising: if the running time of the first circulation fan If the second time threshold is exceeded, the second circulation fan is driven to run.
- the method further includes: if the first If the operating time of the circulating fan exceeds the third time threshold, the main power circuit in the electric control box is started.
- the controller of the air conditioner may determine whether the temperature detected by the temperature sensor is lower than the first temperature threshold. If so, control the heating assembly in the electric control box to heat the electric control box. In this manner, the electric control box can be heated only when the temperature detected by the temperature sensor is lower than the set first temperature threshold, thereby reducing power consumption and realizing the effect of automatically heating the electric control box based on the environment.
- the controller of the air conditioner starts the main power circuit in the electric control box.
- the method further includes: controlling the working state of the heating assembly according to the temperature range of the detected temperature.
- controlling the working state of the heating component according to the temperature range where the detected temperature is located includes: if the detected temperature is in the first temperature range, controlling the heating component to be in an on state; if If the detected temperature is in the second temperature range, the state of the heating component is controlled to remain unchanged; if the detected temperature is in the third temperature range, the heating component is controlled to be in an off state.
- the first temperature interval is an interval less than the first temperature threshold
- the second temperature interval is an interval greater than or equal to the first temperature threshold and less than the second temperature threshold
- the third temperature interval is greater than or equal to The interval of the second temperature threshold, the first temperature interval is smaller than the second temperature threshold.
- the temperature sensor is used to detect the cavity temperature of the electric control box.
- the heating component includes a positive temperature coefficient thermistor.
- the application also provides a heating control device for an electric control box, including:
- An acquisition module configured to acquire the detected temperature of the temperature sensor in the electric control box
- a control module configured to control a heating component in the electric control box to heat the electric control box according to the detected temperature
- the driving module is used to sequentially drive the circulation fan in the electric control box to perform internal circulation heating of the electric control box according to the heating time of the heating component.
- the circulation fan includes a first circulation fan and a second circulation fan
- the first circulation fan is used to blow the air in the electric control box to the first direction of the first circulation fan
- the second circulation fan is used to blow the air in the electric control box to the second direction of the second circulation fan
- the first circulation fan is adjacent to the heating assembly
- the second circulation fan is located at In the first direction of the first circulation fan
- the first circulation fan is located in the second direction of the second circulation fan.
- the driving module is specifically configured to drive the first circulation fan to run if the heating time of the heating component exceeds a first time threshold.
- the driving module is specifically configured to drive the second circulating fan to run if the running time of the first circulating fan exceeds a second time threshold.
- control module is further configured to start the main power circuit in the electric control box if the running time of the first circulation fan exceeds a third time threshold.
- control module is specifically configured to determine whether the temperature detected by the temperature sensor is lower than a first temperature threshold; if yes, control a heating component in the electric control box to heat the electric control box.
- control module is further configured to start the main power circuit in the electric control box if not.
- control module is further configured to control the working state of the heating assembly according to the temperature range of the detected temperature.
- control module is specifically configured to, if the detected temperature is in a first temperature range, control the heating component to be in an on state; if the detected temperature is in a second temperature range, control the heating component to The state remains unchanged; if the detected temperature is in the third temperature range, the heating component is controlled to be in an off state.
- the first temperature interval is an interval less than the first temperature threshold
- the second temperature interval is an interval greater than or equal to the first temperature threshold and less than the second temperature threshold
- the third temperature interval is greater than or equal to The interval of the second temperature threshold, the first temperature interval is smaller than the second temperature threshold.
- the temperature sensor is used to detect the cavity temperature of the electric control box.
- the heating component includes a positive temperature coefficient thermistor.
- the present application also provides an air conditioner, including: including: an electric control box, a compressor and a controller;
- the electric control box is used to control the refrigeration of the compressor, and the electric control box is provided with a heating assembly, a temperature sensor and a circulation fan; the controller is configured as:
- the circulation fan in the electric control box is sequentially driven to perform internal circulation heating of the electric control box.
- the present application also provides a computer program product, including a computer program.
- a computer program product including a computer program.
- the computer program is executed by a processor, the heating control method for the electric control box described in any of the above technical solutions is implemented.
- the present application also provides a computer storage medium, the computer storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the steps of the heating control method for the electric control box described in any of the above technical solutions .
- the heating control method and device of the electric control box and the air conditioner provided in the embodiments of the present application control the heating component to heat the electric control box according to the detected temperature, and control the circulation fan to perform internal circulation heating, thereby reducing the excessive temperature of the heating component attachment area. High probability of damage to components inside the electric control box.
- FIG. 1 is a schematic structural view of an existing air-conditioning device provided in an embodiment of the present application
- FIG. 2 is a schematic flowchart of a heating control method for an electric control box provided in an embodiment of the present application
- Fig. 3 is a schematic structural diagram of an electric control box provided by an embodiment of the present application.
- Fig. 4 is a schematic flowchart of another heating control method for an electric control box provided in an embodiment of the present application.
- Fig. 5 is a schematic flowchart of another heating control method for an electric control box provided in the embodiment of the present application.
- Fig. 6 is a schematic structural diagram of a heating control device for an electric control box provided in an embodiment of the present application.
- FIG. 7 is a schematic structural diagram of an air conditioner provided in an embodiment of the present application.
- FIG. 8 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
- the temperature inside the electric control box is usually the same as that of the outside.
- the performance of components may decrease, especially the capacity of the electrolytic capacitor of the main circuit will decay, resulting in low reliability of the air-conditioning equipment.
- low-temperature components can be used in the electric control box, so as to avoid the influence of the low-temperature environment on the air-conditioning equipment.
- the use of low-temperature components will increase the cost of air-conditioning equipment, and the air-conditioning equipment needs to be customized according to the environment, and generalization is not used.
- a heating assembly may be provided inside the air conditioner, so that the heating assembly is used to heat the electric control box in the air conditioner when the ambient temperature is low.
- Fig. 1 is a schematic structural diagram of an existing air conditioner provided by an embodiment of the present application.
- the air conditioner includes an electric control box 001 , an electric heating assembly 002 and an external fan 003 .
- the structure of the air conditioner shows the heating and cooling methods of the electric control box of the air conditioner.
- the external fan 003 can circulate the outdoor air of the electric control box 001 and the indoor air of the electric control box 001, so as to realize the internal convection heat dissipation of the electric control box 001. Since the internal circulating air of the electric control box 001 is the outdoor wind, the temperature of the incoming air of the electric control box 001 is the same as that of the outdoor ambient air.
- the electric heating component 002 can be installed at the bottom of the electric control box 001.
- the outdoor air of the control box 001 and the indoor air of the electric control box 001 circulate.
- the indoor air heated by the electric heating assembly 002 can heat the components inside the electric control box 001 .
- the electric control box is heated by heating the outside air. Therefore, the power of the heating component is large, which not only consumes power, but also has a dry burning Higher hidden dangers, which will cause a greater probability of damage to components inside the electric control box.
- the air convection in the electric control box is to be generated, the external fan needs to be turned on. At this time, the low-temperature characteristics of the fan control device also need special treatment.
- the present application provides a heating control method and device for an electric control box, and an air conditioner.
- the circulation fan in the electric control box is driven to perform internal circulation heating of the electric control box, thereby avoiding the balance of the internal temperature of the electric control box.
- the temperature avoids the probability of damage to the components inside the electric control box caused by the excessive temperature in the accessories area of the heating component.
- FIG 2 is a schematic flow chart of a heating control method for an electric control box provided in the embodiment of the present application.
- the subject of execution is the controller.
- the heating control method of the electric control box includes:
- the controller detects that the compressor in the air conditioner starts to run, the electric control box in the air conditioner will start to work accordingly. At this time, it is necessary to obtain the detected temperature of the temperature sensor in the electric control box. Therefore, based on the detected temperature of the temperature sensor, it is determined whether the temperature of the electric control box can meet the reliability condition during operation.
- the temperature sensor provided in the electric control box can be used to detect the cavity temperature of the electric control box, so as to monitor the operating environment of the components in the electric control box in real time.
- the embodiment of the present application does not limit the installation position of the temperature sensor in the electric control box.
- the temperature sensor can be installed in any area inside the electric control box, but it is necessary to avoid installing it in the heating assembly Nearby, in order to avoid the influence of the heat generated by the heating component on the detection temperature, resulting in the collected detection temperature being higher than the actual cavity temperature.
- a plurality of temperature sensors may be arranged in the electric control box to collect the cavity temperature of the electric control box at the same time. Subsequently, after the controller acquires the detected temperatures of the multiple temperature sensors, it can control the operation of the heating component according to the average value of the detected temperatures of the multiple temperature sensors. Or, after the controller acquires the detected temperatures of the multiple temperature sensors, it can control the operation of the heating component according to the highest value of the detected temperatures of the multiple temperature sensors.
- the temperature detected by the temperature sensor in the electric control box can be obtained.
- the temperature detected by the temperature sensor in the electric control box can be obtained immediately.
- the temperature detected by the temperature sensor in the electric control box may be acquired at the first time point before the compressor is turned on.
- the first time point may be specifically set based on actual conditions, for example, 5 seconds, 7 seconds, 10 seconds, and so on.
- the controller after the controller acquires the detected temperature of the temperature sensor, it can determine whether to turn on the heating component by detecting the temperature.
- the heating assembly may include a positive temperature coefficient (Positive Temperature Coefficient, PTC) thermistor.
- PTC Positive Temperature Coefficient
- the resistance of the PTC thermistor will increase, the power will decrease, and the surface temperature will reach a certain value, and the maximum temperature will not damage the surrounding components of the PTC thermistor. Therefore, the components in the electric control box can be protected to a certain extent. Moreover, due to the internal circulation of the air in the electric control box, it can have a certain heat preservation effect, so that the power of the PTC thermistor is relatively small.
- the embodiment of the present application does not limit how to control the heating component in the electric control box according to the detected temperature.
- the first temperature threshold may be preset. After the controller acquires the detected temperature, it can compare the detected temperature with the first temperature threshold to determine whether the detected temperature of the temperature sensor is lower than the first temperature threshold. If the detected temperature is lower than the first temperature threshold, it is determined that the temperature inside the electric control box is too low, and the reliability requirement cannot be met by direct operation. At this time, the heating components in the electric control box can be controlled to heat the electric control box, and at the same time, the circulation fan and the main circuit are not in operation temporarily.
- the controller determines that the temperature in the electric control box is not too high, and the reliability requirement can be met. At this time, there is no need to start the heating component, and the main circuit can be directly started to run.
- the embodiment of the present application does not limit the size of the first temperature threshold, which can be specifically set according to actual conditions, for example, it can be 0 degrees Celsius, 5 degrees Celsius, -10 degrees Celsius, and so on.
- the first temperature threshold may be set to a.
- the air conditioner After the air conditioner receives the start-up command, it can obtain the detection temperature T of the temperature sensor in the cavity of the electric control box. If the detection temperature T of the temperature sensor is greater than the first temperature threshold a, the heating component will not be started, and the main power circuit will be turned on. run. If the temperature T of the sensor is lower than the preset value a, the heating component starts to preheat, and the fan does not run temporarily.
- the heating component can be preheated after starting, so that the temperature of the heating component can be increased to the preset temperature.
- the electric control box can be driven sequentially The circulating fan heats the electric control box internally, thereby increasing the temperature of the cavity of the electric control box.
- the preheating time of the heating component can be set to X seconds. When the heating time of the heating component exceeds X seconds, it can be determined that the heating component has completed the preheating. Circulation heating.
- circulation fans there may be two circulation fans, and in other embodiments, there may be three or even more circulation fans.
- the circulation fan may include a first circulation fan and a second circulation fan, the first circulation fan is used to blow the air in the electric control box to the first direction of the first circulation fan, and the second circulation fan is used to blow the air in the electric The air in the control box is blown to the second direction of the second circulation fan.
- the embodiment of the present application does not limit the installation position of the circulation fan.
- the first circulation fan may be adjacent to the heating assembly, the second circulation fan may be located in the first direction of the first circulation fan, and the first The circulation fan may be located in the second direction of the second circulation fan.
- first direction of the first circulation fan and the second direction of the second circulation fan may be opposite directions, so that the first circulation fan blows air to the second circulation fan, and the second circulation fan blows air to the first circulation fan.
- Circulation fan so as to form air circulation, realize the internal circulation heating of the electric control box.
- the embodiment of the present application does not limit when the circulation fan is started.
- the heating time of the heating component exceeds the first time threshold
- the first circulation fan is driven to run.
- the running time of the first circulation fan exceeds the second time threshold
- the second circulation fan is driven to run.
- the main power circuit in the electric control box is activated if the running time of the first circulation fan exceeds the third time threshold.
- the heating time T of the heating component reaches the first time threshold X seconds
- the bearing grease of the first circulation fan is heated to the target temperature by electric heating heat radiation
- the first circulation fan is driven to start running.
- the running time of the first circulating fan reaches the second time threshold Y seconds
- the first circulating fan transfers the heat of electric heating to the second circulating fan
- the bearing grease of the first circulating fan is heated to the target temperature.
- the second circulation fan starts to run.
- the opening time of the first circulation fan reaches Z seconds
- the heat of the electric heating has been evenly transferred to the electric control box through the two circulation fans, and at this time, the main power circuit can be controlled to start running. In this way, when receiving heat radiation from electric heating, the circulation fan starts to operate after the bearing grease of the circulation fan heats up to the target temperature, thereby protecting the circulation fan and improving the service life of the circulation fan.
- the controller can still monitor the detected temperature collected by the temperature sensor in real time, so as to judge the running state of the electric control box.
- the controller can determine the temperature range in which the detected temperature is located. If the detected temperature is in the first temperature range, the heating component is controlled to be on; if the detected temperature is in the second temperature range, the state of the heating component remains unchanged; if the detected temperature is in the third temperature range, the heating component is controlled to be off state.
- the first temperature interval is an interval less than the first temperature threshold
- the second temperature interval is an interval greater than or equal to the first temperature threshold and less than the second temperature threshold
- the third temperature interval is an interval greater than or equal to the second temperature threshold.
- a temperature range is smaller than the second temperature threshold.
- the temperature T detected by the temperature sensor can be continuously determined.
- the detection temperature T is between [a, b]
- the state of the heating component remains unchanged, and remains closed or open; when the cavity temperature T is greater than b, the heating component remains closed, and the main power circuit operates; when the cavity temperature T When it is less than a, the heating element remains on and the main power circuit operates.
- the circulation fan provided in the embodiment of the present application can not only form a thermal cycle inside the electric control box, but also can cool down the electric control box when the electric heating component is turned off when the temperature of the electric control box is high. .
- the controller can first obtain the overall power of the electric control box, and then determine the operating wind speed of the circulating fan based on the detected temperature of the temperature sensor and the overall power of the electric control box, thereby determining The circulation fan dissipates heat from the electric control box.
- the detected temperature T is greater than the preset value c, it can be determined that the temperature of the electric control box is too high and heat dissipation is required. If the overall power s ⁇ the first power threshold S1, it can be determined that the components in the electric control box generate less heat. At this time, the operating wind speed of the circulating fan is the first target operating wind speed C or stops running.
- the controller can further determine the heat dissipation condition of the electric control box by acquiring the cavity temperature of the electric control box. If the acquired detected temperature T is lower than the preset value d, the heat dissipation effect is better, and correspondingly, the circulating fan can be set to the second target operating wind speed B.
- the detected temperature T is greater than the preset value c
- the overall power s ⁇ the first power threshold S1 it can be determined that the components in the electric control box generate a large amount of heat.
- the acquired detected temperature T is greater than or equal to the preset value d, the heat dissipation effect is poor, and accordingly, the circulating fan is set to the third target operating wind speed A.
- the third target operating wind speed A is greater than the second target operating wind speed A, and the second target operating wind speed A is greater than the third target operating wind speed C.
- the detected temperature of the temperature sensor in the electric control box is acquired.
- the heating assembly in the electric control box can be controlled to heat the electric control box.
- the circulation fan in the electric control box is sequentially driven to perform internal circulation heating of the electric control box.
- the heat dissipation control method of the electric control box disclosed in the present application controls the heating component to heat the electric control box according to the detected temperature, and controls the circulation fan to perform internal circulation heating, thereby reducing the heat loss of the electric control box caused by the excessive temperature of the accessories area of the heating component. The probability of internal components being damaged.
- Fig. 3 is a schematic structural diagram of an electric control box provided in an embodiment of the present application.
- the electric control box adopts a sealed design, and a first circulation fan 110 and a second circulation fan 120 are arranged inside for circulating heating inside the electric control box.
- a third circulation fan, a fourth circulation fan, etc. may be added inside the electric control box to form air circulation.
- the electric control box has a built-in PTC thermistor 130 as a heating component for heating the electric control box.
- the PTC thermistor 130 can be installed at the air inlet of the first circulation fan 110 so that the first circulation fan 110 can circulate the heat generated by the PTC thermistor 130 in time.
- a temperature sensor 140 can also be arranged inside the electric control box, and the temperature sensor 140 can be set at any position in the electric control box except close to the PTC thermistor 130, so as to detect the cavity temperature of the electric control box.
- the circulation fan provided in the present application can not only form air circulation inside the electric control box to heat the electric control box, but also can circulate and dissipate heat when the temperature of the electric control box is too high.
- the electric control box provided by this application is a closed structure, and the inside adopts the micro-channel cooling method, and the air inside the electric control box is circulated and dissipated by the cooling fan, and is not affected by the external ambient temperature and air quality.
- the electronic control scheme can be kept consistent.
- Fig. 4 is a schematic flowchart of another heating control method for an electric control box provided in the embodiment of the present application. As shown in Fig. 4, the heating control method for the electric control box includes:
- step S203 If yes, execute step S203; if not, execute step S204.
- the bearing grease of the first circulating fan is heated by electric heating and thermal radiation to reach the target temperature, and the first circulating fan can be started to operate at this time.
- the first circulating fan can transmit the heat of electric heating to the second circulating fan, so that the bearing grease of the second circulating fan is heated to the target temperature.
- the second circulation fan can be started to run.
- the running time of the main power circuit can also be determined according to the running time of the last circulating fan (ie, the second circulating fan in this embodiment).
- preset values a, x, y, and z involved in the embodiment of the present application may be specifically set according to the actual situation, which is not limited in the embodiment of the present application.
- Fig. 5 is a schematic flowchart of another heating control method for an electric control box provided in the embodiment of the present application. As shown in Fig. 5, the heating control method for the electric control box includes:
- step S303 If yes, execute step S303; if not, execute step S304.
- step S305 If yes, execute step S305; if not, execute step S306.
- step S310 If yes, execute step S310; if not, execute step S311.
- the embodiment of the present application adopts a closed electric control box, and a circulation fan is used inside for heat circulation and heat dissipation.
- a heating component is added to the air inlet of the circulation fan, and the circulation fan makes the heat of the heating component pass through the components in the electric control box.
- the heating component can use PTC thermistor.
- the fan stops running and the electric heating is dry, due to the characteristics of the PTC thermistor, the resistance value of the PTC thermistor will increase, the power will decrease, and the surface temperature will reach a certain value. As for damage to surrounding components, it plays a certain protective role.
- due to the internal circulation of air in the electric control box it can have a certain heat preservation effect, and the PTC power is relatively small.
- the heating control method of the electric control box provided by the embodiment of the present application can prolong the life of the circulation fan and components inside the electric control box to a certain extent, and the main power circuit components do not need special low-temperature treatment, so they are universal.
- Fig. 6 is a schematic structural diagram of a heating control device for an electric control box provided in an embodiment of the present application.
- the heating control device of the electric control box can be implemented by software, hardware or a combination of the two, such as the controller in the above-mentioned embodiment, to execute the heating control method of the electric control box in the above-mentioned embodiment.
- the heating control device 400 of the electric control box includes: an acquisition module 401 , a control module 402 and a drive module 403 .
- the acquiring module 401 is configured to acquire the detected temperature of the temperature sensor in the electric control box.
- the control module 402 is configured to control the heating component in the electric control box to heat the electric control box according to the detected temperature.
- the driving module 403 is used to sequentially drive the circulation fan in the electric control box to perform internal circulation heating of the electric control box according to the heating time of the heating component.
- the circulation fan includes a first circulation fan and a second circulation fan
- the first circulation fan is used to blow the air in the electric control box to the first direction of the first circulation fan
- the second circulation fan is used to blow the air in the electric control box
- the air in the box is blown in the second direction of the second circulation fan
- the first circulation fan is adjacent to the heating assembly
- the second circulation fan is located in the first direction of the first circulation fan
- the first circulation fan is located in the second direction of the second circulation fan on the second direction.
- the driving module 403 is specifically configured to drive the first circulation fan to run if the heating time of the heating component exceeds a first time threshold.
- the driving module 403 is specifically configured to drive the second circulating fan to run if the running time of the first circulating fan exceeds a second time threshold.
- control module 402 is further configured to start the main power circuit in the electric control box if the running time of the first circulation fan exceeds the third time threshold.
- control module 402 is specifically configured to determine whether the temperature detected by the temperature sensor is lower than the first temperature threshold; if so, control the heating assembly in the electric control box to heat the electric control box.
- control module 402 is also used to start the main power circuit in the electric control box if not.
- control module 402 is also configured to control the working state of the heating component according to the temperature range of the detected temperature.
- control module 402 is specifically used to control the heating component to be in the on state if the detected temperature is in the first temperature range; if the detected temperature is in the second temperature range, control the state of the heating component to remain unchanged; if the detected temperature is in the In the third temperature range, the heating assembly is controlled to be in an off state.
- the first temperature interval is an interval less than the first temperature threshold
- the second temperature interval is an interval greater than or equal to the first temperature threshold and less than the second temperature threshold
- the third temperature interval is an interval greater than or equal to the second temperature threshold
- the first temperature interval is smaller than the second temperature threshold
- heating control device of the electric control box provided by the embodiment shown in FIG. 6 can be used to implement the method provided by any of the above embodiments.
- the specific implementation method and technical effect are similar and will not be repeated here.
- Fig. 7 is a schematic structural diagram of an air conditioner provided in an embodiment of the present application.
- the air conditioner 500 includes: an electric control box 501, a compressor 502 and a controller 503; the electric control box is used to control the refrigeration of the compressor, and a heating assembly 504, a temperature sensor 505 and The circulation fan 506 and the controller 503 are configured to implement the heating control method of the electric control box described above.
- FIG. 8 is a schematic structural diagram of an electronic device provided by an embodiment of the present application. As shown in FIG. 8 , the electronic device may include: at least one processor 601 and a memory 602 . FIG. 8 shows an electronic device with a processor as an example.
- the memory 602 is used to store programs.
- the program may include program code, and the program code includes computer operation instructions.
- the memory 602 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
- the processor 601 is used to execute the computer-executed instructions stored in the memory 602, so as to realize the above heating control method for the electric control box;
- the processor 601 may be a central processing unit (Central Processing Unit, referred to as CPU), or a specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or is configured to implement one or more of the embodiments of the present application multiple integrated circuits.
- CPU Central Processing Unit
- ASIC Application Specific Integrated Circuit
- the communication interface, the memory 602 and the processor 601 may be connected to each other through a bus to complete mutual communication.
- the bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Industry Standard Architecture
- the bus can be divided into address bus, data bus, control bus, etc., but it does not mean that there is only one bus or one type of bus.
- the communication interface, memory 602 and processor 601 may complete communication through an internal interface.
- the embodiment of the present application also provides a chip, including a processor and an interface.
- the interface is used to input and output data or instructions processed by the processor.
- the processor is configured to execute the methods provided in the above method embodiments.
- the chip can be applied in the heating control device of the electric control box.
- the application also provides a computer-readable storage medium, which can include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) ), a magnetic disk or an optical disk, and other media that can store program codes.
- a computer-readable storage medium stores program information, and the program information is used for the heating control method of the above-mentioned electric control box.
- the embodiment of the present application also provides a program, which is used to execute the heating control method of the electric control box provided in the above method embodiment when executed by a processor.
- the embodiment of the present application also provides a program product, such as a computer-readable storage medium.
- the program product stores instructions. When it is run on a computer, the computer executes the heating control method of the electric control box provided by the above method embodiment. .
- a computer program product includes one or more computer instructions.
- Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, e.g. Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to another website site, computer, server or data center.
- DSL digital subscriber line
- the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server, a data center, etc. integrated with one or more available media.
- Available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)).
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
| 标号 | 名称 | 标号 | 名称 |
| 001 | 电控盒 | 002 | 电加热组件 |
| 003 | 外部风扇 | 110 | 第一循环风扇 |
| 120 | 第二循环风扇 | 130 | PTC热敏电阻 |
| 140 | 温度传感器 |
Claims (15)
- 一种电控盒的加热控制方法,其特征在于,所述方法包括:获取所述电控盒中的温度传感器的检测温度;根据所述检测温度,控制所述电控盒中的加热组件对所述电控盒进行加热;根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热。
- 根据权利要求1所述的方法,其特征在于,所述循环风扇包括第一循环风扇和第二循环风扇,所述第一循环风扇用于将所述电控盒中的空气吹向所述第一循环风扇的第一方向,所述第二循环风扇用于将所述电控盒中的空气吹向所述第二循环风扇的第二方向,所述第一循环风扇与所述加热组件相邻,所述第二循环风扇位于所述第一循环风扇的第一方向上,所述第一循环风扇位于所述第二循环风扇的第二方向上。
- 根据权利要求2所述的方法,其特征在于,所述根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热,包括:若所述加热组件的加热时间超过第一时间阈值,则驱动所述第一循环风扇运行。
- 根据权利要求3所述的方法,其特征在于,所述根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热,还包括:若所述第一循环风扇的运行时间超过第二时间阈值,则驱动所述第二循环风扇运行。
- 根据权利要求4所述的方法,其特征在于,在所述根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热之后,所述方法还包括:若所述第一循环风扇的运行时间超过第三时间阈值,则启动所述电控盒中的主功率回路。
- 根据权利要求1所述的方法,其特征在于,所述根据所述检测温度,控制所述电控盒中的加热组件对所述电控盒进行加热,包括:确定所述温度传感器的检测温度是否小于第一温度阈值;若是,则控制所述电控盒中的加热组件对所述电控盒进行加热。
- 根据权利要求6所述的方法,其特征在于,在所述确定所述温度传感器的检测温度是否小于第一温度阈值之后,所述方法还包括:若否,则启动所述电控盒中的主功率回路。
- 根据权利要求5或7所述的方法,其特征在于,在所述启动所述电控盒中的主功率回路之后,所述方法还包括:根据所述检测温度所处的温度区间,控制所述加热组件的工作状态。
- 根据权利要求8所述的方法,其特征在于,所述根据所述检测温度所处的温度区间,控制所述加热组件的工作状态,包括:若所述检测温度处于第一温度区间,则控制所述加热组件处于开启状态;若所述检测温度处于第二温度区间,则控制所述加热组件的状态不变;若所述检测温度处于第三温度区间,则控制所述加热组件处于关闭状态;其中,所述第一温度区间为小于第一温度阈值的区间,所述第二温度区间为大于等于所述第一温度阈值且小于第二温度阈值的区间,所述第三温度区间为大于等于所述第二温度阈值的区间,所述第一温度区间小于所述第二温度阈值。
- 根据权利要求1所述的方法,其特征在于,所述温度传感器用于检测所述电控盒的腔体温度。
- 根据权利要求1所述的方法,其特征在于,所述加热组件包括正温度系数热敏电阻。
- 一种电控盒的加热控制装置,其特征在于,所述装置包括:获取模块,用于获取所述电控盒中的温度传感器的检测温度;控制模块,用于根据所述检测温度,控制所述电控盒中的加热组件对所述电控盒进行加热;驱动模块,用于根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热。
- 一种空调器,其特征在于,包括:电控盒、压缩机和控制器;所述电控盒用于控制所述压缩机的制冷,所述电控盒中设置有加热组件、温度传感器和循环风扇;所述控制器被配置为:获取所述电控盒中的温度传感器的检测温度;根据所述检测温度,控制所述电控盒中的加热组件对所述电控盒进行加热;根据所述加热组件的加热时间,依次驱动所述电控盒中的循环风扇对所述电控盒进行内部循环加热。
- 一种计算机程序产品,包括计算机程序,其特征在于,该计算机程序被处理器执行时实现权利要求1-11任意一项所述的方法。
- 一种计算机存储介质,其特征在于,所述计算机存储介质存储有多条指令, 所述指令适于由处理器加载并执行如权利要求1-11任意一项的方法步骤。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/563,919 US20240251521A1 (en) | 2021-08-31 | 2022-05-07 | Heating control method and apparatus of electric control box, and air conditioner |
| EP22862692.5A EP4329449A4 (en) | 2021-08-31 | 2022-05-07 | HEATING CONTROL METHOD AND DEVICE OF AN ELECTRICAL CONTROL BOX AND AIR CONDITIONING SYSTEM |
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|---|---|---|---|
| CN202111017019.3 | 2021-08-31 | ||
| CN202111017019.3A CN113891614A (zh) | 2021-08-31 | 2021-08-31 | 电控盒的加热控制方法、装置以及空调器 |
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| WO2023029549A1 true WO2023029549A1 (zh) | 2023-03-09 |
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| PCT/CN2022/091549 Ceased WO2023029549A1 (zh) | 2021-08-31 | 2022-05-07 | 电控盒的加热控制方法、装置以及空调器 |
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| Country | Link |
|---|---|
| US (1) | US20240251521A1 (zh) |
| EP (1) | EP4329449A4 (zh) |
| CN (1) | CN113891614A (zh) |
| WO (1) | WO2023029549A1 (zh) |
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|---|---|---|---|---|
| CN117793972A (zh) * | 2023-12-18 | 2024-03-29 | 浙江宇泛精密科技有限公司 | 极寒温度下的设备加热系统和电子设备 |
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| CN113891614A (zh) * | 2021-08-31 | 2022-01-04 | 合肥美的暖通设备有限公司 | 电控盒的加热控制方法、装置以及空调器 |
| CN118856516A (zh) * | 2024-08-22 | 2024-10-29 | 青岛海尔空调器有限总公司 | 空调电控箱加热控制方法以及空调器 |
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Also Published As
| Publication number | Publication date |
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| EP4329449A1 (en) | 2024-02-28 |
| EP4329449A4 (en) | 2024-10-16 |
| CN113891614A (zh) | 2022-01-04 |
| US20240251521A1 (en) | 2024-07-25 |
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