WO2019219079A1 - 新风机的预热控制方法及系统 - Google Patents

新风机的预热控制方法及系统 Download PDF

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Publication number
WO2019219079A1
WO2019219079A1 PCT/CN2019/087423 CN2019087423W WO2019219079A1 WO 2019219079 A1 WO2019219079 A1 WO 2019219079A1 CN 2019087423 W CN2019087423 W CN 2019087423W WO 2019219079 A1 WO2019219079 A1 WO 2019219079A1
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WIPO (PCT)
Prior art keywords
air
heat source
temperature
inlet
preset
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PCT/CN2019/087423
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English (en)
French (fr)
Inventor
谢伟敏
何俊飞
邱适林
Original Assignee
广东美的暖通设备有限公司
美的集团股份有限公司
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Publication of WO2019219079A1 publication Critical patent/WO2019219079A1/zh

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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
    • F24F11/72—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
    • F24F11/76—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 means responsive to temperature, e.g. bimetal springs

Definitions

  • the present application relates to the field of air conditioning technology, and in particular, to a preheating control method for a new fan, a preheating control system for a new fan, a computer device, a computer readable storage medium, a new fan and An air conditioning system.
  • the present application is intended to address at least one of the technical problems existing in the related art or related art.
  • the first aspect of the present application is to propose a preheating control method for a new fan.
  • a second aspect of the present application is to provide a warm-up control system for a new wind turbine.
  • a third aspect of the present application is to provide a computer device.
  • a fourth aspect of the present application is to provide a computer readable storage medium.
  • a fifth aspect of the present application is to propose a new type of fan.
  • a sixth aspect of the present application is to provide an air conditioning system.
  • a preheating control method for a new fan which is used for a new fan of an air conditioning system, the new fan includes an air inlet, an air supply port, and a heat source, and the air inlet is used for introducing the outdoor air.
  • the air supply port is used for air supply in the room, and the heat source is located on the side where the air inlet is located.
  • the preheating control method of the new fan includes: determining whether to turn on the heat source according to the inlet air temperature TA in response to the power on command.
  • the preheating control method provided by the present application enables the new fan to operate normally in a low temperature environment, thereby improving the safety and reliability of the operation of the air conditioning system to which the new fan is applied. Specifically, when the air conditioning system is in the heating mode, the indoor air can be warmed up. With the new fan, the outdoor fresh air can be introduced into the room to improve the indoor air quality.
  • the new fan may not be able to be Startup, therefore, when the air conditioning system is started in the heating mode, first send a power-on command to the new fan, and the new fan then determines whether to turn on the heat source according to the inlet air temperature TA, and can pre-empt the outdoor fresh air when the inlet air temperature TA is not suitable.
  • the heat starts the new fan smoothly, and then turns on other devices in the air conditioning system, such as the electronic expansion valve and the compressor, so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • the electronic expansion valve and the compressor so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • determining whether to turn on the heat source according to the intake air temperature TA includes: determining whether the intake air temperature TA is less than or equal to the first preset temperature T1; when the determination result is yes, confirming that the first preset is reached a state; determining whether the duration of maintaining the first preset state is greater than or equal to the first preset duration t1; when the determination result is yes, turning on the heat source.
  • an opening control signal is issued to control the dry contact closure of the heat source to turn on the heat source.
  • the first preset time period t1 or more can avoid the situation that the inlet air temperature TA is temporarily or is too low for special reasons, and the accuracy of judging the air inlet condition is improved, so that the heat source is turned on as needed to ensure the reliability of the new fan.
  • the first preset temperature T1 ranges from -5 ° C ⁇ T1 ⁇ 0 ° C; and/or the first preset time length t1 ranges from 2 min ⁇ t1 ⁇ 4 min .
  • the use range of the common new fan in the heating mode is above -5 ° C, and the inlet air temperature can be satisfied by limiting the first preset temperature T1 to a value range of -5 ° C ⁇ T1 ⁇ 0 ° C.
  • the upper limit value ensures that the heat source is turned on in time, which improves the safety and reliability of the operation of the air conditioning system.
  • the method further includes: determining whether to turn off the heat source according to the intake air temperature TA and the supply air temperature TB.
  • a condition for turning off the heat source is defined. Since the heat source has different models and heating power, it can be judged whether the heat source selection is reasonable by the inlet air temperature TA and the supply air temperature TB. When the selection is reasonable, the heat source can be continuously turned on, and when the selection is improper, the heating power is too large, When the stable operation, the supply air temperature TB is too high, which affects the user experience. At this time, the heat source needs to be turned off to stop the preheating, which not only ensures the user experience, but also reduces the energy consumption of the heat source.
  • determining whether to turn off the heat source according to the intake air temperature TA and the supply air temperature TB comprises: determining whether the intake air temperature TA is greater than or equal to the second preset temperature T2; when the determination result is yes , determining whether the supply air temperature TB, the third preset temperature T3, and the fourth preset temperature T4 satisfy TB-T3 ⁇ T4; when the determination result is yes, confirming that the second preset state is reached; determining to maintain the second preset state Whether the duration is greater than or equal to the second preset duration t2; when the judgment result is yes, the heat source is turned off.
  • the inlet air temperature TA is higher than the second preset temperature T2
  • the second preset state After improving the air conditioning system after the air is warmed up, it is further determined whether the second preset state lasts for a second preset time period t2 or more, and the air supply temperature TB is stabilized in the second preset state, thereby improving the air supply.
  • the accuracy of the judgment of the situation avoids the premature closure of the heat source and ensures the reliability of the new fan.
  • the second preset temperature T2 ranges from 8 ° C ⁇ T2 ⁇ 12 ° C; and/or the third preset temperature T3 ranges from 10 ° C ⁇ T3 ⁇ 14 °C; and/or the fourth preset temperature T4 ranges from 1 °C ⁇ T4 ⁇ 3 ° C; and / or the second preset time length t2 ranges from 9 min ⁇ t2 ⁇ 11 min.
  • the second preset temperature T2 is limited to a range of 8 ° C ⁇ T2 ⁇ 12 ° C, and the lower limit value ensures that the heat source is turned off when the inlet air temperature TA is sufficiently high, avoiding premature Closed, its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the range of the third preset temperature T3 is limited to 10 ° C ⁇ T3 ⁇ 14 ° C, and the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C, ensuring that the supply air temperature TB is sufficiently high to determine Whether to turn off the heat source ensures the improvement of the air conditioning system and the reasonable operation of the heat source.
  • the range of the second preset time length t2 is limited to 9 min ⁇ t2 ⁇ 11 min, and the lower limit value can reserve sufficient time for the fresh air fan to ensure stable operation, and improve the accuracy of judging the air supply condition, thereby avoiding Closing the heat source prematurely ensures the reliability of the new fan, and its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the method further includes: when it is determined that the heat source is not turned off according to the intake air temperature TA and the supply air temperature TB, Determine whether the air conditioning system is operating in a mode other than the heating mode or if the new fan is faulty; when the judgment result is yes, turn off the heat source.
  • another condition for turning off the heat source is defined.
  • the air conditioning system when the air conditioning system is in the heating mode, if the introduced outdoor air is heated, the inlet air temperature TA and the supply air temperature TB can satisfy a certain preset condition after a period of time. If the preset condition is not met, Further, it is determined whether there is a special case such as a non-heating mode or a new fan failure in the air conditioning system, and the heat source is turned off to reduce unnecessary energy consumption when the special case occurs.
  • the method further includes: when determining to turn off the heat source according to the intake air temperature TA and the supply air temperature TB, start Timing; when the timing reaches the third preset time length t3, an operation of determining whether to turn on the heat source according to the intake air temperature TA is performed.
  • the heating power of the heat source is too high, it is further limited that when the heat source is turned off due to the high inlet air temperature TA and the supply air temperature TB, the inlet air temperature TA is detected again after the third preset time period t3. To determine whether it is necessary to turn on the heat source again, to ensure that the fresh air can be preheated in time when the temperature is low, so that the heat source is intermittently turned on, which makes up for the problem of improper heat source selection.
  • a preheating control system for a new fan for a new fan of an air conditioning system, the new fan includes an air inlet, an air supply port, and a heat source, and the air inlet is used to introduce an outdoor fresh air, the air supply port.
  • the utility model is used for supplying air to the room, and the heat source is located at a side of the air inlet.
  • the warm-up control system of the new fan comprises: a starting unit, configured to determine whether to turn on the heat source according to the inlet air temperature TA in response to the power-on instruction.
  • the preheating control system provided by the present application enables the new fan to operate normally in a low temperature environment, thereby improving the safety and reliability of the operation of the air conditioning system to which the new fan is applied. Specifically, when the air conditioning system is in the heating mode, the indoor air can be warmed up. With the new fan, the outdoor fresh air can be introduced into the room to improve the indoor air quality.
  • the new fan may not be able to be Startup, therefore, when the air conditioning system is started in the heating mode, first send a power-on command to the new fan, and the starting unit determines whether to turn on the heat source according to the inlet air temperature TA, and can pre-empt the outdoor fresh air when the inlet air temperature TA is not suitable.
  • the heat starts the new fan smoothly, and then turns on other devices in the air conditioning system, such as the electronic expansion valve and the compressor, so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • the electronic expansion valve and the compressor so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • preheating control system in the above technical solution provided by the present application may further have the following additional technical features:
  • the starting unit is configured to: determine, according to the power-on instruction, whether the air inlet temperature TA is less than or equal to the first preset temperature T1, and when the determination result is yes, confirm that the first preset state is reached, And determining whether the duration of maintaining the first preset state is greater than or equal to the first preset duration t1, and when the determination result is yes, turning on the heat source.
  • the starting unit detects that the intake air temperature TA is lower than the first preset temperature T1 and continues for the first preset time length t1, an opening control signal is issued to control the dry contact closure of the heat source to turn on the heat source.
  • the determination requirement that the inlet air temperature TA is too low is first satisfied; on this basis, whether the first preset state in which the inlet air temperature TA is too low is determined to be continuous.
  • the first preset time period t1 or more can avoid the situation that the inlet air temperature TA is temporarily or is too low for special reasons, and the accuracy of judging the air inlet condition is improved, so that the heat source is turned on as needed to ensure the reliability of the new fan.
  • the first preset temperature T1 ranges from -5 ° C ⁇ T1 ⁇ 0 ° C; and/or the first preset time length t1 ranges from 2 min ⁇ t1 ⁇ 4 min .
  • the use range of the common new fan in the heating mode is above -5 ° C, and the inlet air temperature can be satisfied by limiting the first preset temperature T1 to a value range of -5 ° C ⁇ T1 ⁇ 0 ° C.
  • the upper limit value ensures that the heat source is turned on in time, which improves the safety and reliability of the operation of the air conditioning system.
  • the method further includes: a first closing unit, configured to determine whether to turn off the heat source according to the intake air temperature TA and the supply air temperature TB.
  • a first closing unit is defined. Since the heat source has different models and heating power, it can be judged whether the heat source selection is reasonable by the inlet air temperature TA and the supply air temperature TB. When the selection is reasonable, the heat source can be continuously turned on, and when the selection is improper, the heating power is too large, When the steady operation is performed, the supply air temperature TB is too high, which affects the user experience. At this time, the first shutdown unit turns off the heat source to stop the preheating, thereby ensuring the user experience and reducing the energy consumption of the heat source.
  • the first closing unit is configured to: determine whether the inlet air temperature TA is greater than or equal to the second preset temperature T2, and when the determination result is yes, determine the supply air temperature TB, the third pre- Whether the temperature T3 and the fourth preset temperature T4 satisfy TB-T3 ⁇ T4, when the determination result is yes, confirm that the second preset state is reached, and determine whether the duration of maintaining the second preset state is greater than or equal to the second preset.
  • the duration t2 when the judgment result is YES, the heat source is turned off.
  • the first closing unit detects that the intake air temperature TA is higher than the second preset temperature T2 and the supply air temperature TB is higher than the third preset temperature T3 by at least the fourth preset temperature T4 for the second pre-
  • the heating power is considered too high and the supply air temperature is too high, and a shutdown control signal is issued to control the dry contact of the heat source to be turned off, so that the heat source is turned off.
  • the inlet air temperature TA is higher than the second preset temperature T2
  • the second preset state After improving the air conditioning system after the air is warmed up, it is further determined whether the second preset state lasts for a second preset time period t2 or more, and the air supply temperature TB is stabilized in the second preset state, thereby improving the air supply.
  • the accuracy of the judgment of the situation avoids the premature closure of the heat source and ensures the reliability of the new fan.
  • the second preset temperature T2 ranges from 8 ° C ⁇ T2 ⁇ 12 ° C; and/or the third preset temperature T3 ranges from 10 ° C ⁇ T3 ⁇ 14 °C; and/or the fourth preset temperature T4 ranges from 1 °C ⁇ T4 ⁇ 3 ° C; and / or the second preset time length t2 ranges from 9 min ⁇ t2 ⁇ 11 min.
  • the second preset temperature T2 is limited to a range of 8 ° C ⁇ T2 ⁇ 12 ° C, and the lower limit value ensures that the heat source is turned off when the inlet air temperature TA is sufficiently high, avoiding premature Closed, its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the range of the third preset temperature T3 is limited to 10 ° C ⁇ T3 ⁇ 14 ° C, and the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C, ensuring that the supply air temperature TB is sufficiently high to determine Whether to turn off the heat source ensures the improvement of the air conditioning system and the reasonable operation of the heat source.
  • the range of the second preset time length t2 is limited to 9 min ⁇ t2 ⁇ 11 min, and the lower limit value can reserve sufficient time for the fresh air fan to ensure stable operation, and improve the accuracy of judging the air supply condition, thereby avoiding Closing the heat source prematurely ensures the reliability of the new fan, and its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the method further includes: a second closing unit, configured to determine whether the air conditioning system is operating in a mode other than the heating mode or whether the new fan is faulty when the first closing unit does not turn off the heat source And turn off the heat source when the judgment result is yes.
  • a second closing unit configured to determine whether the air conditioning system is operating in a mode other than the heating mode or whether the new fan is faulty when the first closing unit does not turn off the heat source And turn off the heat source when the judgment result is yes.
  • a second closing unit is defined.
  • the air conditioning system when the air conditioning system is running in the heating mode, if the introduced outdoor air inlet is heated, the intake air temperature TA and the supply air temperature TB can satisfy a certain preset condition after a period of time, if the first closing unit determination is not satisfied.
  • the second closing unit further determines whether there is a special condition such as the non-heating mode or the new fan failure of the air conditioning system, and turns off the heat source to reduce unnecessary energy consumption when the special condition occurs.
  • the method further includes: a timing unit, configured to start timing when the first shutdown unit turns off the heat source, and activate the activation unit to enter the wind when the timing reaches the third preset time length t3
  • the temperature TA determines whether the heat source is turned on.
  • the timing unit starts counting and is activated again after the third preset time period t3.
  • the starting unit detects the inlet air temperature TA to determine whether it is necessary to turn on the heat source again, ensuring that the fresh air can be preheated in time when the temperature is low, so that the heat source is intermittently turned on, which makes up for the problem of improper selection of the heat source.
  • a computer apparatus comprising a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement any of the above technical solutions
  • a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the warm-up control method according to any of the above aspects, and thus All the beneficial technical effects of the above preheating control method are not described herein.
  • a new fan comprising: a housing having an air inlet and a air supply opening, the air inlet for introducing a fresh air outside, and the air outlet for supplying air to the room;
  • the temperature sensor is located at the air inlet for detecting the inlet air temperature;
  • the second temperature sensor is located at the air supply port for detecting the supply air temperature;
  • the indoor heat exchanger is located inside the casing; and
  • the heat source is located inside the casing and located at the air inlet And an indoor heat exchanger; and a controller for controlling the operation of the heat source.
  • the new fan provided by the present application has a preheating function.
  • the controller controls the heat source to turn on according to the detected values of the first temperature sensor and the second temperature sensor to preheat the outdoor fresh air introduced by the air inlet.
  • the new fan can still operate normally under low temperature environment, improve the safety and reliability of the operation of the air conditioning system using the new fan, meet the needs of users to open new fans in the heating mode, improve indoor air pollution, and provide User's comfortable indoor environment.
  • an indoor fan is disposed between the indoor heat exchanger and the air inlet to guide the outdoor fresh air to the indoor heat exchanger.
  • a return air inlet connected to the indoor space may be disposed on the casing. When the air inlet is closed, the air return port and the air supply opening are opened, the air conditioning system performs indoor air circulation without introducing fresh air.
  • the new fan in the above technical solution provided by the present application may further have the following additional technical features:
  • the heat source is a third-party heat source.
  • the heat source is a third-party heat source, which has nothing to do with the heating cycle of the air-conditioning system, thereby ensuring that the low-temperature outdoor fresh air is reliably preheated, and ensuring that the new fan can be normally opened in a low temperature environment.
  • the controller is provided with the preheating control system according to any one of the above technical solutions or the computer device as described in the above technical solution or the computer readable storage according to the above technical solution.
  • the medium thus having all the beneficial technical effects of the above-described preheating control method and system, will not be described herein.
  • an air conditioning system comprising the new fan as described in any of the above technical solutions, and thus having all the beneficial technical effects of the above-mentioned new fan, and details are not described herein again.
  • FIG. 1 shows a schematic flow chart of a warm-up control method according to a first embodiment of the present application
  • FIG. 2 shows a schematic flow chart of a warm-up control method according to a second embodiment of the present application
  • FIG. 3 shows a schematic flow chart of a warm-up control method according to a third embodiment of the present application
  • FIG. 4 shows a schematic flow chart of a warm-up control method according to a fourth embodiment of the present application.
  • FIG. 5 shows a schematic flow chart of a warm-up control method according to a fifth embodiment of the present application
  • FIG. 6 shows a schematic flow chart of a warm-up control method according to a sixth embodiment of the present application.
  • Figure 7 shows a schematic block diagram of a warm-up control system in accordance with a first embodiment of the present application
  • Figure 8 shows a schematic block diagram of a warm-up control system in accordance with a second embodiment of the present application
  • Figure 9 shows a schematic block diagram of a warm-up control system in accordance with a third embodiment of the present application.
  • Figure 10 shows a schematic block diagram of a warm-up control system in accordance with a fourth embodiment of the present application.
  • FIG. 11 is a block diagram showing the structure of a computer device according to an embodiment of the present application.
  • FIG. 12 shows a schematic structural view of a new fan according to an embodiment of the present application.
  • 6 new fan 602 housing, 604 first temperature sensor, 606 second temperature sensor, 608 indoor heat exchanger, 610 third-party heat source, 612 indoor fan, 614 air inlet, 616 air outlet, 7 outdoor unit.
  • the embodiment of the first aspect of the present application provides a preheating control method for a new fan, which is used for a new fan of an air conditioning system.
  • the new fan includes an air inlet, a air supply port, and a heat source, and the air inlet is used to introduce an outdoor fresh air, and the air supply port is used for the air supply port.
  • the air is supplied to the room, and the heat source is located on the side where the air inlet is located.
  • FIG. 1 shows a schematic flow chart of a warm-up control method according to a first embodiment of the present application.
  • the preheating control method includes:
  • the preheating control method provided by the present application enables the new fan to operate normally in a low temperature environment, thereby improving the safety and reliability of the operation of the air conditioning system to which the new fan is applied. Specifically, when the air conditioning system is in the heating mode, the indoor air can be warmed up. With the new fan, the outdoor fresh air can be introduced into the room to improve the indoor air quality.
  • the new fan may not be able to be Startup, therefore, when the air conditioning system is started in the heating mode, first send a power-on command to the new fan, and the new fan then determines whether to turn on the heat source according to the inlet air temperature TA, and can pre-empt the outdoor fresh air when the inlet air temperature TA is not suitable.
  • the heat starts the new fan smoothly, and then turns on other devices in the air conditioning system, such as the electronic expansion valve and the compressor, so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • the electronic expansion valve and the compressor so as to realize the auxiliary opening of the new fan when the air conditioning system is in the heating mode in the low temperature environment, to meet the current low temperature environment on the market.
  • FIG. 2 shows a schematic flow chart of a warm-up control method according to a second embodiment of the present application.
  • the warm-up control method includes:
  • an opening control signal is issued to control the dry contact closure of the heat source to turn on the heat source.
  • the first preset time period t1 or more can avoid the situation that the inlet air temperature TA is temporarily or is too low for special reasons, and the accuracy of judging the air inlet condition is improved, so that the heat source is turned on as needed to ensure the reliability of the new fan. Specifically, when the result is negative in two judgments, it indicates that the heat source is not turned on without heating.
  • the first preset temperature T1 ranges from -5 ° C ⁇ T1 ⁇ 0 ° C; and/or the first preset time length t1 ranges from 2 min ⁇ t1 ⁇ 4min.
  • the use range of the common new fan in the heating mode is above -5 ° C, and the inlet air temperature can be satisfied by defining the first preset temperature T1 to be in the range of -5 ° C ⁇ T1 ⁇ 0 ° C.
  • the upper limit value ensures that the heat source is turned on in time, which improves the safety and reliability of the operation of the air conditioning system.
  • the first preset temperature T1 is 0 ° C
  • the first preset time length t1 is 3 min.
  • FIG. 3 shows a schematic flow chart of a warm-up control method according to a third embodiment of the present application.
  • the warm-up control method includes:
  • a condition is defined to turn off the heat source. Since the heat source has different models and heating power, it can be judged whether the heat source selection is reasonable by the inlet air temperature TA and the supply air temperature TB. When the selection is reasonable, the heat source can be continuously turned on, and when the selection is improper, the heating power is too large, When the stable operation, the supply air temperature TB is too high, which affects the user experience. At this time, the heat source needs to be turned off to stop the preheating, which not only ensures the user experience, but also reduces the energy consumption of the heat source.
  • Fig. 4 shows a schematic flow chart of a warm-up control method according to a fourth embodiment of the present application.
  • the warm-up control method includes:
  • the inlet air temperature TA is higher than the second preset temperature T2 and the supply air temperature TB is higher than the third preset temperature T3 by at least the fourth preset temperature T4 for the second preset time length t2, it is considered If the heating power is too high and the supply air temperature is too high, a shutdown control signal is issued to control the dry contact of the heat source to be disconnected, so that the heat source is turned off.
  • the inlet air temperature TA is higher than the second preset temperature T2
  • the second preset state After improving the air conditioning system after the air is warmed up, it is further determined whether the second preset state lasts for a second preset time period t2 or more, and the air supply temperature TB is stabilized in the second preset state, thereby improving the air supply.
  • the accuracy of the judgment of the situation avoids the premature closure of the heat source and ensures the reliability of the new fan.
  • the second preset temperature T2 ranges from 8 ° C ⁇ T2 ⁇ 12 ° C; and/or the third preset temperature T3 ranges from 10 ° C ⁇ T3 ⁇ 14 ° C; and / or the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C; and / or the second preset time length t2 ranges from 9 min ⁇ t2 ⁇ 11 min.
  • the second preset temperature T2 is limited to a range of 8 ° C ⁇ T2 ⁇ 12 ° C, and the lower limit value ensures that the heat source is turned off when the inlet air temperature TA is sufficiently high, avoiding premature Closed, its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the range of the third preset temperature T3 is limited to 10 ° C ⁇ T3 ⁇ 14 ° C, and the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C, ensuring that the supply air temperature TB is sufficiently high to determine Whether to turn off the heat source ensures the improvement of the air conditioning system and the reasonable operation of the heat source.
  • the range of the second preset time length t2 is limited to 9 min ⁇ t2 ⁇ 11 min, and the lower limit value can reserve sufficient time for the fresh air fan to ensure stable operation, and improve the accuracy of judging the air supply condition, thereby avoiding Closing the heat source prematurely ensures the reliability of the new fan, and its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the second preset temperature T2 is 10 ° C
  • the third preset temperature T3 is 12 ° C
  • the fourth preset temperature T4 is 2 ° C
  • the second preset time length t2 is 10 min.
  • FIG. 5 shows a schematic flow chart of a warm-up control method according to a fifth embodiment of the present application.
  • the warm-up control method includes:
  • another condition that turns off the heat source is defined.
  • the air conditioning system when the air conditioning system is in the heating mode, if the introduced outdoor air is heated, the inlet air temperature TA and the supply air temperature TB can satisfy a certain preset condition after a period of time. If the preset condition is not met, Further, it is determined whether there is a special case such as a non-heating mode or a new fan failure in the air conditioning system, and the heat source is turned off to reduce unnecessary energy consumption when the special case occurs.
  • FIG. 6 shows a schematic flow chart of a warm-up control method according to a sixth embodiment of the present application.
  • the warm-up control method includes:
  • the heating power of the heat source when the heating power of the heat source is too high, it is further defined that when the heat source is turned off due to the high inlet air temperature TA and the supply air temperature TB, the inlet air temperature TA is detected again after the third preset time period t3. To determine whether it is necessary to turn on the heat source again, to ensure that the fresh air can be preheated in time when the temperature is low, so that the heat source is intermittently turned on, which makes up for the problem of improper heat source selection.
  • the embodiment of the second aspect of the present application provides a preheating control system for a new fan, which is used for a new fan of an air conditioning system.
  • the new fan includes an air inlet, an air supply port, and a heat source, and the air inlet is used to introduce an outdoor fresh air, and the air supply port is used for the air supply port.
  • the air is supplied to the room, and the heat source is located on the side where the air inlet is located.
  • Figure 7 shows a schematic block diagram of a warm-up control system in accordance with a first embodiment of the present application.
  • the warm-up control system 100 includes:
  • the starting unit 102 is configured to determine whether to turn on the heat source according to the intake air temperature TA in response to the power-on instruction.
  • the preheating control system 100 provided by the present application enables the new fan to operate normally in a low temperature environment, thereby improving the safety and reliability of the operation of the air conditioning system to which the new fan is applied. Specifically, when the air conditioning system is in the heating mode, the indoor air can be warmed up. With the new fan, the outdoor fresh air can be introduced into the room to improve the indoor air quality.
  • the new fan may not be able to be Starting, therefore, when the air conditioning system is started in the heating mode, the power-on command is first sent to the new fan, and the starting unit 102 determines whether to turn on the heat source according to the inlet air temperature TA, and can perform the outdoor fresh air when the inlet air temperature TA is inappropriate. Preheating to smoothly start the new fan, and then turn on other devices in the air conditioning system, such as electronic expansion valves and compressors, so as to assist in opening new fans in the air conditioning system operating heating mode in low temperature environment, to meet the current low temperature environment on the market. There is a strong demand for new fans to open.
  • the starting unit 102 is configured to: determine, according to the power-on instruction, whether the intake air temperature TA is less than or equal to the first preset temperature T1, and when the determination result is yes, confirm that the first Presetting the state, and determining whether the duration of maintaining the first preset state is greater than or equal to the first preset duration t1, and when the determination result is yes, turning on the heat source.
  • the starting unit 102 detects that the intake air temperature TA is lower than the first preset temperature T1 and continues for the first preset time period t1, an opening control signal is issued to control the dry contact closure of the heat source to turn on the heat source. .
  • the determination requirement that the inlet air temperature TA is too low is first satisfied; on this basis, whether the first preset state in which the inlet air temperature TA is too low is determined to be continuous.
  • the first preset time period t1 or more can avoid the situation that the inlet air temperature TA is temporarily or is too low for special reasons, and the accuracy of judging the air inlet condition is improved, so that the heat source is turned on as needed to ensure the reliability of the new fan. Specifically, when the result is negative in two judgments, it indicates that the heat source is not turned on without heating.
  • the first preset temperature T1 ranges from -5 ° C ⁇ T1 ⁇ 0 ° C; and/or the first preset time length t1 ranges from 2 min ⁇ t1 ⁇ 4min.
  • the use range of the common new fan in the heating mode is above -5 ° C, and the inlet air temperature can be satisfied by defining the first preset temperature T1 to be in the range of -5 ° C ⁇ T1 ⁇ 0 ° C.
  • the upper limit value ensures that the heat source is turned on in time, which improves the safety and reliability of the operation of the air conditioning system.
  • the first preset temperature T1 is 0 ° C
  • the first preset time length t1 is 3 min.
  • Figure 8 shows a schematic block diagram of a warm-up control system in accordance with a second embodiment of the present application.
  • the warm-up control system 200 includes:
  • the starting unit 202 is configured to determine, according to the air inlet temperature TA, whether to turn on the heat source in response to the power on command;
  • the first closing unit 204 is configured to determine whether to turn off the heat source according to the inlet air temperature TA and the supply air temperature TB.
  • a first closure unit 204 is defined. Since the heat source has different models and heating power, it can be judged whether the heat source selection is reasonable by the inlet air temperature TA and the supply air temperature TB. When the selection is reasonable, the heat source can be continuously turned on, and when the selection is improper, the heating power is too large, When the steady operation is performed, the supply air temperature TB is too high, which affects the user experience. At this time, the first closing unit 204 turns off the heat source to stop the preheating, thereby ensuring the user experience and reducing the energy consumption of the heat source.
  • the first closing unit is specifically configured to: determine whether the inlet air temperature TA is greater than or equal to the second preset temperature T2, and when the determination result is yes, determine the supply air temperature TB, the third Whether the preset temperature T3 and the fourth preset temperature T4 satisfy TB-T3 ⁇ T4, when the determination result is yes, confirm that the second preset state is reached, and determine whether the duration of maintaining the second preset state is greater than or equal to the second pre-predetermined Set the time length t2, and when the judgment result is yes, turn off the heat source.
  • the first closing unit detects that the intake air temperature TA is higher than the second preset temperature T2 and the supply air temperature TB is higher than the third preset temperature T3 by at least the fourth preset temperature T4 for the second pre-
  • the duration t2 is set, the heating power is considered too high and the supply air temperature is too high, and a shutdown control signal is issued to control the dry contact of the heat source to be turned off, so that the heat source is turned off.
  • the inlet air temperature TA is higher than the second preset temperature T2
  • the second preset state After improving the air conditioning system after the air is warmed up, it is further determined whether the second preset state lasts for a second preset time period t2 or more, and the air supply temperature TB is stabilized in the second preset state, thereby improving the air supply.
  • the accuracy of the judgment of the situation avoids the premature closure of the heat source and ensures the reliability of the new fan.
  • the second preset temperature T2 ranges from 8 ° C ⁇ T2 ⁇ 12 ° C; and/or the third preset temperature T3 ranges from 10 ° C ⁇ T3 ⁇ 14 ° C; and / or the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C; and / or the second preset time length t2 ranges from 9 min ⁇ t2 ⁇ 11 min.
  • the second preset temperature T2 is limited to a range of 8 ° C ⁇ T2 ⁇ 12 ° C, and the lower limit value ensures that the heat source is turned off when the inlet air temperature TA is sufficiently high, avoiding premature Closed, its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the range of the third preset temperature T3 is limited to 10 ° C ⁇ T3 ⁇ 14 ° C, and the fourth preset temperature T4 ranges from 1 ° C ⁇ T4 ⁇ 3 ° C, ensuring that the supply air temperature TB is sufficiently high to determine Whether to turn off the heat source ensures the improvement of the air conditioning system and the reasonable operation of the heat source.
  • the range of the second preset time length t2 is limited to 9 min ⁇ t2 ⁇ 11 min, and the lower limit value can reserve sufficient time for the fresh air fan to ensure stable operation, and improve the accuracy of judging the air supply condition, thereby avoiding Closing the heat source prematurely ensures the reliability of the new fan, and its upper limit avoids the continuous opening of the heat source and increases unnecessary energy consumption.
  • the second preset temperature T2 is 10 ° C
  • the third preset temperature T3 is 12 ° C
  • the fourth preset temperature T4 is 2 ° C
  • the second preset time length t2 is 10 min.
  • Figure 9 shows a schematic block diagram of a warm-up control system in accordance with a third embodiment of the present application.
  • the warm-up control system 300 includes:
  • the starting unit 302 is configured to determine, according to the air inlet temperature TA, whether to turn on the heat source in response to the power on command;
  • a first closing unit 304 configured to determine whether to turn off the heat source according to the inlet air temperature TA and the supply air temperature TB;
  • the second closing unit 306 is configured to determine whether the air conditioning system is operating in a mode other than the heating mode or whether the new fan is faulty when the first closing unit 304 does not turn off the heat source, and turn off the heat source when the determination result is yes.
  • a second closure unit 306 is defined.
  • the air conditioning system when the air conditioning system is in the heating mode, if the introduced outdoor air is heated, the intake air temperature TA and the supply air temperature TB can satisfy a certain preset condition after a period of time, if the first closing unit 304 determines not When the preset condition is met, the second closing unit 306 further determines whether there is a special case such as a non-heating mode or a new fan failure in the air conditioning system, and turns off the heat source to reduce unnecessary energy consumption when the special condition occurs.
  • a special case such as a non-heating mode or a new fan failure in the air conditioning system
  • Figure 10 shows a schematic block diagram of a warm-up control system in accordance with a fourth embodiment of the present application.
  • the warm-up control system 400 includes:
  • the starting unit 402 is configured to determine, according to the air inlet temperature TA, whether to turn on the heat source in response to the power on command;
  • a first closing unit 404 configured to determine whether to turn off the heat source according to the inlet air temperature TA and the supply air temperature TB;
  • the timing unit 406 is configured to start timing when the first closing unit 404 turns off the heat source, and activate the starting unit 402 to determine whether to turn on the heat source according to the inlet air temperature TA when the timing reaches the third preset time length t3;
  • the second closing unit 408 is configured to determine whether the air conditioning system is operating in a mode other than the heating mode or whether the new fan is faulty when the first closing unit 404 does not turn off the heat source, and turn off the heat source when the determination result is yes.
  • the timing unit 406 starts counting, and after passing the third preset time period t3 again.
  • the activation starting unit 402 detects the inlet air temperature TA to determine whether it is necessary to turn on the heat source again, and ensures that the fresh air can be preheated in time when the temperature is low, so that the heat source is intermittently turned on, which makes up for the problem of improper selection of the heat source.
  • an embodiment of the third aspect of the present application provides a computer device 5 including a memory 52, a processor 54, and a computer program stored on the memory 52 and operable on the processor 54, the processor 54
  • the steps of the preheating control method as described in any of the above embodiments are implemented when the computer program is executed, and thus all the beneficial technical effects of the above-described preheating control method are not described herein.
  • An embodiment of the fourth aspect of the present application provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the warm-up control method as described in any of the above embodiments, and thus All the beneficial technical effects of the above preheating control method are not described herein.
  • an embodiment of the fifth aspect of the present application provides a new fan 6, including a housing 602, a first temperature sensor 604, a second temperature sensor 606, an indoor heat exchanger 608, a heat source, and a controller.
  • the air inlet 614 and the air supply port 616 are provided on the housing 602.
  • the air inlet 614 is used for introducing fresh air, and the air outlet 616 is used for air supply.
  • the first temperature sensor 604 is located at the air inlet 614 for detecting
  • the second temperature sensor 606 is located at the air supply port 616 for detecting the supply air temperature;
  • the indoor heat exchanger 608 is located in the housing 602;
  • the heat source is located in the housing 602 and located at the air inlet 614 and the indoor heat exchanger 608.
  • the controller is electrically connected to the heat source to control the operation of the heat source.
  • the new fan 6 provided by the present application has a preheating function.
  • the controller controls the heat source to be turned on according to the detected values of the first temperature sensor 604 and the second temperature sensor 606 to preheat the air inlet 614.
  • the introduction of fresh outdoor air enables the new fan 6 to operate normally in a low temperature environment, improving the safety and reliability of the operation of the air conditioning system using the new fan 6, and meeting the needs of the user to open the new fan 6 in the heating mode. Improve indoor air pollution and provide users with a comfortable indoor environment.
  • an indoor fan 612 is disposed between the indoor heat exchanger 608 and the air inlet 614 to guide the outdoor fresh air to the indoor heat exchanger 608, such as the direction indicated by the hollow arrow in FIG.
  • a return air port communicating with the indoor space may be disposed on the housing 602. When the air inlet 614 is closed, the air return port and the air supply port 616 are opened, the air conditioning system performs indoor air circulation without introducing fresh air.
  • the heat source is a third party heat source 610.
  • the heat source is a third-party heat source 610, which is independent of the heating cycle of the air conditioning system, thereby ensuring reliable outdoor warming of the low temperature outdoor fresh air, and ensuring that the new fan 6 can be normally opened in a low temperature environment.
  • the third-party heat source 610 is gas, electric auxiliary heat, or the like.
  • the controller can issue a control signal to cause the dry contact of the third party heat source 610 to close or open, thereby enabling the third source heat source 610 to be turned on or off.
  • the controller is provided with a warm-up control system as described in any of the above embodiments or a computer device as described in the above embodiments or a computer readable as described in the above embodiments.
  • the storage medium has all the beneficial technical effects of the above-described preheating control method and system, and details are not described herein again.
  • the embodiment of the fifth aspect of the present invention provides an air conditioning system including the new fan 6 as described in any of the above embodiments, and thus has all the beneficial technical effects of the new fan 6 described above, and details are not described herein again.
  • the air conditioning system further includes a compressor, a throttle device, an outdoor unit 7 and a four-way reversing valve, the compressor and the throttling device are respectively used for boosting and depressurizing, and the outdoor unit 7 is provided with an outdoor heat exchanger.
  • the four ports of the four-way reversing valve are respectively connected to the compressor inlet, the compressor outlet, the indoor heat exchanger 608, and the outdoor heat exchanger. By switching the four-way reversing valve, the air conditioning system can operate the cooling mode or the heating mode.
  • the indoor heat exchanger 608 acts as a condenser and the outdoor heat exchanger acts as an evaporator; when the air conditioning system operates to cool In the mode, the indoor heat exchanger 608 acts as an evaporator and the outdoor heat exchanger acts as a condenser.
  • a third-party heat source 610 may be added to preheat the room air pollution by other means, such as adding an air filter device.
  • the term “plurality” means two or more, unless specifically defined otherwise.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like should be understood broadly.
  • “connecting” may be a fixed connection, a detachable connection, or an integral connection; “connected” may They are directly connected or indirectly connected through an intermediary.
  • connection may be a fixed connection, a detachable connection, or an integral connection; “connected” may They are directly connected or indirectly connected through an intermediary.
  • the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

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Abstract

本申请提供了一种新风机的预热控制方法及系统、计算机设备、计算机可读存储介质、新风机、空调系统。其中，新风机包括进风口、送风口和热源，进风口用于引入室外新风，送风口用于为室内送风，热源位于进风口所在的一侧，新风机的预热控制方法包括：响应于新风机开机指令，根据进风温度TA判定是否开启热源。本申请提供的预热控制方法，使新风机在低温环境下依然能够正常运行，提高了应用该新风机的空调系统运行的安全性和可靠性，满足市场上目前对低温环境下新风机开启的强烈需求。

Description

新风机的预热控制方法及系统
相关申请的交叉引用
本申请基于申请号为201810481134.8，申请日为2018年05月18日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及空调技术领域，具体而言，涉及一种新风机的预热控制方法、一种新风机的预热控制系统、一种计算机设、一种计算机可读存储介质、一种新风机及一种空调系统。
背景技术
随着生活水平的提高，人们对室内环境，特别是室内空气质量的要求也日渐提高；而现在几乎所有的新装修居室的室内空气质量都有问题，有的污染物指标超过国家标准几倍甚至几十倍。要改善室内空气污染，提高室内空气质量的最直接有效的办法就是提高室内空气的流通。加快室内污染空气的排出，加速室外新鲜空气的注入。近几年来，新风机已经在国内迅速发展起来。普通新风机在制热模式下的使用范围是-5℃以上，而市场上目前对-5℃以下新风机的开启也有强烈的需求。
发明内容
本申请旨在至少解决现有技术或相关技术中存在的技术问题之一。
为此，本申请的第一个方面在于，提出一种新风机的预热控制方法。
本申请的第二个方面在于，提出一种新风机的预热控制系统。
本申请的第三个方面在于，提出一种计算机设备。
本申请的第四个方面在于，提出一种计算机可读存储介质。
本申请的第五个方面在于，提出一种新风机。
本申请的第六个方面在于，提出一种空调系统。
有鉴于此，根据本申请的第一个方面，提供了一种新风机的预热控制方法，用于空调系统的新风机，新风机包括进风口、送风口和热源，进风口用于引入室外新风，送风口用于为室内送风，热源位于进风口所在的一侧，新风机的预热控制方法包括：响应于开机指令，根据进风温度TA判定是否开启热源。
本申请提供的预热控制方法，使新风机在低温环境下依然能够正常运行，提高了应用 该新风机的空调系统运行的安全性和可靠性。具体而言，空调系统运行制热模式时可为室内空气升温，配合新风机可将室外的新风引入室内，提高室内空气质量，但若新风机的进风温度TA过低，可能造成新风机无法启动，因此，当空调系统在制热模式下启动时，首先向新风机发送开机指令，新风机再根据进风温度TA判定是否开启热源，可在进风温度TA不适宜时对室外新风进行预热以顺利启动新风机，继而开启空调系统内的其他器件，如电子膨胀阀、压缩机，从而实现在低温环境下空调系统运行制热模式时辅助开启新风机，满足市场上目前对低温环境下新风机开启的强烈需求。
另外，根据本申请提供的上述技术方案中的预热控制方法，还可以具有如下附加技术特征：
在上述技术方案中，优选地，根据进风温度TA判定是否开启热源的操作包括：判断进风温度TA是否小于等于第一预设温度T1；当判断结果为是时，确认达到第一预设状态；判断保持第一预设状态的时长是否大于等于第一预设时长t1；当判断结果为是时，开启热源。
在该技术方案中，当检测到进风温度TA低于第一预设温度T1并持续第一预设时长t1后，发出开启控制信号以控制热源的干触点闭合，使热源开启。通过判断进风温度TA是否小于等于第一预设温度T1，首先满足了进风温度TA过低的判断需求；在此基础上，通过判断进风温度TA过低的第一预设状态是否持续了第一预设时长t1以上，可避免进风温度TA临时或因特殊原因过低的情况，提高了对进风情况的判断准确性，使得热源按需开启，确保了新风机的可靠性。
在上述任一技术方案中，优选地，第一预设温度T1的取值范围为-5℃≤T1≤0℃；和/或第一预设时长t1的取值范围为2min≤t1≤4min。
在该技术方案中，普通新风机在制热模式下的使用范围是-5℃以上，通过限定第一预设温度T1的取值范围为-5℃≤T1≤0℃，可满足进风温度TA在-5℃以下时的新风机开启需求；限定第一预设时长t1的取值范围为2min≤t1≤4min，其下限值足以规避进风温度TA临时或因特殊原因过低的情况，其上限值则确保了热源及时开启，提高了空调系统运行的安全性和可靠性。
在上述任一技术方案中，优选地，在根据进风温度TA判定是否开启热源的操作之后，还包括：根据进风温度TA和送风温度TB判定是否关闭热源。
在该技术方案中，限定了关闭热源的一个条件。由于热源存在不同的型号和加热功率，借助进风温度TA和送风温度TB可判断热源选型是否合理，当选型合理时，可持续开启该热源，当选型不当造成加热功率过大时，会造成稳定运行时送风温度TB过高，影响用户体验，此时就需要关闭热源以停止预热，既确保了用户体验，又减少了热源的能耗。
在上述任一技术方案中，优选地，根据进风温度TA和送风温度TB判定是否关闭热源的步骤包括：判断进风温度TA是否大于等于第二预设温度T2；当判断结果为是时，判断送风温度TB、第三预设温度T3和第四预设温度T4是否满足TB-T3≥T4；当判断结果为是时，确认达到第二预设状态；判断保持第二预设状态的时长是否大于等于第二预设时长t2；当判断结果为是时，关闭热源。
在该技术方案中，当进风温度TA高于第二预设温度T2且送风温度TB比第三预设温度T3高出至少第四预设温度T4持续第二预设时长t2时，认为加热功率过高且造成送风温度过高，发出关闭控制信号以控制热源的干触点断开，使热源关闭。通过检测进风温度TA是否高于第二预设温度T2，可首先判定可能出现加热过度的情况；在此基础上，判断送风温度TB是否达到第二预设状态，即判定热源对新风机送风预热后对空调系统的改善效果，进一步判断第二预设状态是否持续了第二预设时长t2以上，可确保送风温度TB已稳定于第二预设状态，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性。
在上述任一技术方案中，优选地，第二预设温度T2的取值范围为8℃≤T2≤12℃；和/或第三预设温度T3的取值范围为10℃≤T3≤14℃；和/或第四预设温度T4的取值范围为1℃≤T4≤3℃；和/或第二预设时长t2的取值范围为9min≤t2≤11min。
在该技术方案中，限定第二预设温度T2的取值范围为8℃≤T2≤12℃，其下限值保证了在进风温度TA足够高时才判定是否关闭热源，避免了过早关闭，其上限值避免了热源持续开启而增加不必要的能耗。限定第三预设温度T3的取值范围为10℃≤T3≤14℃，第四预设温度T4的取值范围为1℃≤T4≤3℃，确保了送风温度TB足够高时才判定是否关闭热源，保证了对空调系统的改善效果和热源的合理运行。限定第二预设时长t2的取值范围为9min≤t2≤11min，其下限值可为新风机预留足够的时间以确保其运行稳定，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性，其上限值避免了热源持续开启而增加不必要的能耗。
在上述任一技术方案中，优选地，在根据进风温度TA和送风温度TB判定是否关闭热源的步骤之后，还包括：当根据进风温度TA和送风温度TB判定不关闭热源时，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障；当判断结果为是时，关闭热源。
在该技术方案中，限定了关闭热源的另一个条件。由于理论上来说，空调系统运行制热模式时，若对引入的室外进风进行加热，一段时间后进风温度TA和送风温度TB就能满足一定预设条件，若未满足该预设条件，则进一步判断是否存在空调系统正在运行非制热模式或新风机故障等特殊情况，并在出现该特殊情况时关闭热源以减少不必要的能耗。
在上述任一技术方案中，优选地，在根据进风温度TA和送风温度TB判定是否关闭热源的步骤之后，还包括：当根据进风温度TA和送风温度TB判定关闭热源时，开始计时；当计时达到第三预设时长t3时，执行根据进风温度TA判定是否开启热源的操作。
在该技术方案中，对于热源的加热功率过高的情况，进一步限定了由于进风温度TA和送风温度TB较高而关闭热源时，经过第三预设时长t3后再次检测进风温度TA以确定是否需要再次开启热源，确保了在温度偏低时可及时预热新风，从而令热源间歇开启，弥补了热源选型不当的问题。
根据本申请的第二个方面，提供了一种新风机的预热控制系统，用于空调系统的新风机，新风机包括进风口、送风口和热源，进风口用于引入室外新风，送风口用于为室内送风，热源位于进风口所在的一侧，新风机的预热控制系统包括：启动单元，用于响应于开机指令，根据进风温度TA判定是否开启热源。
本申请提供的预热控制系统，使新风机在低温环境下依然能够正常运行，提高了应用该新风机的空调系统运行的安全性和可靠性。具体而言，空调系统运行制热模式时可为室内空气升温，配合新风机可将室外的新风引入室内，提高室内空气质量，但若新风机的进风温度TA过低，可能造成新风机无法启动，因此，当空调系统在制热模式下启动时，首先向新风机发送开机指令，启动单元再根据进风温度TA判定是否开启热源，可在进风温度TA不适宜时对室外新风进行预热以顺利启动新风机，继而开启空调系统内的其他器件，如电子膨胀阀、压缩机，从而实现在低温环境下空调系统运行制热模式时辅助开启新风机，满足市场上目前对低温环境下新风机开启的强烈需求。
另外，根据本申请提供的上述技术方案中的预热控制系统，还可以具有如下附加技术特征：
在上述技术方案中，优选地，启动单元具体用于：响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1，当判断结果为是时，确认达到第一预设状态，并判断保持第一预设状态的时长是否大于等于第一预设时长t1，当判断结果为是时，开启热源。
在该技术方案中，当启动单元检测到进风温度TA低于第一预设温度T1并持续第一预设时长t1后，发出开启控制信号以控制热源的干触点闭合，使热源开启。通过判断进风温度TA是否小于等于第一预设温度T1，首先满足了进风温度TA过低的判断需求；在此基础上，通过判断进风温度TA过低的第一预设状态是否持续了第一预设时长t1以上，可避免进风温度TA临时或因特殊原因过低的情况，提高了对进风情况的判断准确性，使得热源按需开启，确保了新风机的可靠性。
在上述任一技术方案中，优选地，第一预设温度T1的取值范围为-5℃≤T1≤0℃；和/或第一预设时长t1的取值范围为2min≤t1≤4min。
在该技术方案中，普通新风机在制热模式下的使用范围是-5℃以上，通过限定第一预设温度T1的取值范围为-5℃≤T1≤0℃，可满足进风温度TA在-5℃以下时的新风机开启需求；限定第一预设时长t1的取值范围为2min≤t1≤4min，其下限值足以规避进风温度TA临时或因特殊原因过低的情况，其上限值则确保了热源及时开启，提高了空调系统运行的安全性和可靠性。
在上述任一技术方案中，优选地，还包括：第一关闭单元，用于根据进风温度TA和送风温度TB判定是否关闭热源。
在该技术方案中，限定了第一关闭单元。由于热源存在不同的型号和加热功率，借助进风温度TA和送风温度TB可判断热源选型是否合理，当选型合理时，可持续开启该热源，当选型不当造成加热功率过大时，会造成稳定运行时送风温度TB过高，影响用户体验，此时第一关闭单元关闭热源以停止预热，既确保了用户体验，又减少了热源的能耗。
在上述任一技术方案中，优选地，第一关闭单元具体用于：判断进风温度TA是否大于等于第二预设温度T2，当判断结果为是时，判断送风温度TB、第三预设温度T3和第四预设温度T4是否满足TB-T3≥T4，当判断结果为是时，确认达到第二预设状态，并判断保持第二预设状态的时长是否大于等于第二预设时长t2，当判断结果为是时，关闭热源。
在该技术方案中，当第一关闭单元检测到进风温度TA高于第二预设温度T2且送风温度TB比第三预设温度T3高出至少第四预设温度T4持续第二预设时长t2时，认为加热功率过高且造成送风温度过高，发出关闭控制信号以控制热源的干触点断开，使热源关闭。通过检测进风温度TA是否高于第二预设温度T2，可首先判定可能出现加热过度的情况；在此基础上，判断送风温度TB是否达到第二预设状态，即判定热源对新风机送风预热后对空调系统的改善效果，进一步判断第二预设状态是否持续了第二预设时长t2以上，可确保送风温度TB已稳定于第二预设状态，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性。
在上述任一技术方案中，优选地，第二预设温度T2的取值范围为8℃≤T2≤12℃；和/或第三预设温度T3的取值范围为10℃≤T3≤14℃；和/或第四预设温度T4的取值范围为1℃≤T4≤3℃；和/或第二预设时长t2的取值范围为9min≤t2≤11min。
在该技术方案中，限定第二预设温度T2的取值范围为8℃≤T2≤12℃，其下限值保证了在进风温度TA足够高时才判定是否关闭热源，避免了过早关闭，其上限值避免了热源持续开启而增加不必要的能耗。限定第三预设温度T3的取值范围为10℃≤T3≤14℃，第四预设温度T4的取值范围为1℃≤T4≤3℃，确保了送风温度TB足够高时才判定是否关闭热源，保证了对空调系统的改善效果和热源的合理运行。限定第二预设时长t2的取值范围为9min≤t2≤11min，其下限值可为新风机预留足够的时间以确保其运行稳定，提高了对送风 情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性，其上限值避免了热源持续开启而增加不必要的能耗。
在上述任一技术方案中，优选地，还包括：第二关闭单元，用于当第一关闭单元未关闭热源时，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障，并在判断结果为是时关闭热源。
在该技术方案中，限定了第二关闭单元。由于理论上来说，空调系统运行制热模式时，若对引入的室外进风进行加热，一段时间后进风温度TA和送风温度TB就能满足一定预设条件，若第一关闭单元判定未满足该预设条件，则第二关闭单元进一步判断是否存在空调系统正在运行非制热模式或新风机故障等特殊情况，并在出现该特殊情况时关闭热源以减少不必要的能耗。
在上述任一技术方案中，优选地，还包括：计时单元，用于当第一关闭单元关闭热源时，开始计时，并在计时达到第三预设时长t3时，激活启动单元以根据进风温度TA判定是否开启热源。
在该技术方案中，对于热源的加热功率过高的情况，由于进风温度TA和送风温度TB较高而关闭热源时，计时单元开始计时，并在经过第三预设时长t3后再次激活启动单元检测进风温度TA，以确定是否需要再次开启热源，确保了在温度偏低时可及时预热新风，从而令热源间歇开启，弥补了热源选型不当的问题。
根据本申请的第三方面，提供了一种计算机设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，处理器执行计算机程序时实现如上述任一技术方案所述的预热控制方法的步骤，因而具有上述预热控制方法的全部有益技术效果，在此不再赘述。
根据本申请的第四方面，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现如上述任一技术方案所述的预热控制方法的步骤，因而具有上述预热控制方法的全部有益技术效果，在此不再赘述。
根据本申请的第五方面，提供了一种新风机，包括：壳体，壳体上设有进风口和送风口，进风口用于引入室外新风，送风口用于为室内送风；第一温度传感器，位于进风口处，用于检测进风温度；第二温度传感器，位于送风口处，用于检测送风温度；室内换热器，位于壳体内；热源，位于壳体内并位于进风口和室内换热器之间；及控制器，用于控制热源的运行。
本申请提供的新风机带有预热功能，通过在普通新风机上增设热源，由控制器根据第一温度传感器和第二温度传感器的检测值控制热源开启以预热由进风口引入的室外新风，使新风机在低温环境下依然能够正常运行，提高了应用该新风机的空调系统运行的安全性 和可靠性，满足用户在制热模式下开启新风机的需求，改善室内空气污染，提供给用户舒适的室内环境。具体地，在室内换热器和进风口之间设置室内风机以引导室外新风流向室内换热器。此外，还可在壳体上设置与室内空间相连通的回风口，当进风口关闭、回风口和送风口打开时，空调系统进行室内空气循环，不引入新风。
另外，根据本申请提供的上述技术方案中的新风机，还可以具有如下附加技术特征：
在上述技术方案中，优选地，热源为第三方热源。
在该技术方案中，热源为第三方热源，与空调系统的制热循环无关，从而保证了低温的室外新风得到可靠预热，确保了新风机在低温环境下能够正常开启。
在上述任一技术方案中，优选地，控制器上设有如上述任一技术方案所述的预热控制系统或如上述技术方案所述的计算机设备或如上述技术方案所述的计算机可读存储介质，因而具有上述预热控制方法及系统的全部有益技术效果，在此不再赘述。
根据本申请的第五方面，提供了一种空调系统，包括如上述任一技术方案所述的新风机，因而具有上述新风机的全部有益技术效果，在此不再赘述。
本申请的附加方面和优点将在下面的描述部分中变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示出了根据本申请的第一个实施例的预热控制方法的示意流程图；
图2示出了根据本申请的第二个实施例的预热控制方法的示意流程图；
图3示出了根据本申请的第三个实施例的预热控制方法的示意流程图；
图4示出了根据本申请的第四个实施例的预热控制方法的示意流程图；
图5示出了根据本申请的第五个实施例的预热控制方法的示意流程图；
图6示出了根据本申请的第六个实施例的预热控制方法的示意流程图；
图7示出了根据本申请的第一个实施例的预热控制系统的示意框图；
图8示出了根据本申请的第二个实施例的预热控制系统的示意框图；
图9示出了根据本申请的第三个实施例的预热控制系统的示意框图；
图10示出了根据本申请的第四个实施例的预热控制系统的示意框图；
图11示出了根据本申请的一个实施例的计算机设备的结构示意图；
图12示出了根据本申请的一个实施例的新风机的结构示意图。
其中，图12中附图标记与部件名称之间的对应关系为：
6新风机，602壳体，604第一温度传感器，606第二温度传感器，608室内换热器，610第三方热源，612室内风机，614进风口，616送风口，7室外机。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的其他方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
本申请第一方面的实施例提供了一种新风机的预热控制方法，用于空调系统的新风机，新风机包括进风口、送风口和热源，进风口用于引入室外新风，送风口用于为室内送风，热源位于进风口所在的一侧。
图1示出了根据本申请的第一个实施例的预热控制方法的示意流程图。
如图1所示，该预热控制方法包括：
S102，响应于开机指令，根据进风温度TA判定是否开启热源。
本申请提供的预热控制方法，使新风机在低温环境下依然能够正常运行，提高了应用该新风机的空调系统运行的安全性和可靠性。具体而言，空调系统运行制热模式时可为室内空气升温，配合新风机可将室外的新风引入室内，提高室内空气质量，但若新风机的进风温度TA过低，可能造成新风机无法启动，因此，当空调系统在制热模式下启动时，首先向新风机发送开机指令，新风机再根据进风温度TA判定是否开启热源，可在进风温度TA不适宜时对室外新风进行预热以顺利启动新风机，继而开启空调系统内的其他器件，如电子膨胀阀、压缩机，从而实现在低温环境下空调系统运行制热模式时辅助开启新风机，满足市场上目前对低温环境下新风机开启的强烈需求。
图2示出了根据本申请的第二个实施例的预热控制方法的示意流程图。
如图2所示，该预热控制方法包括：
S202，响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1；
S204，当判断结果为是时，确认达到第一预设状态；
S206，判断保持第一预设状态的时长是否大于等于第一预设时长t1；
S208，当判断结果为是时，开启热源。
在该实施例中，当检测到进风温度TA低于第一预设温度T1并持续第一预设时长t1后，发出开启控制信号以控制热源的干触点闭合，使热源开启。通过判断进风温度TA是否小于 等于第一预设温度T1，首先满足了进风温度TA过低的判断需求；在此基础上，通过判断进风温度TA过低的第一预设状态是否持续了第一预设时长t1以上，可避免进风温度TA临时或因特殊原因过低的情况，提高了对进风情况的判断准确性，使得热源按需开启，确保了新风机的可靠性。具体地，在两次判断中结果为否时，表明无需加热，则不开启热源。
在本申请的一个实施例中，优选地，第一预设温度T1的取值范围为-5℃≤T1≤0℃；和/或第一预设时长t1的取值范围为2min≤t1≤4min。
在该实施例中，普通新风机在制热模式下的使用范围是-5℃以上，通过限定第一预设温度T1的取值范围为-5℃≤T1≤0℃，可满足进风温度TA在-5℃以下时的新风机开启需求；限定第一预设时长t1的取值范围为2min≤t1≤4min，其下限值足以规避进风温度TA临时或因特殊原因过低的情况，其上限值则确保了热源及时开启，提高了空调系统运行的安全性和可靠性。可选地，第一预设温度T1为0℃，第一预设时长t1为3min。
图3示出了根据本申请的第三个实施例的预热控制方法的示意流程图。
如图3所示，该预热控制方法包括：
S302，响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1；
S304，当判断结果为是时，确认达到第一预设状态；
S306，判断保持第一预设状态的时长是否大于等于第一预设时长t1；
S308，当判断结果为是时，开启热源；
S310，根据进风温度TA和送风温度TB判定是否关闭热源。
在该实施例中，限定了关闭热源的一个条件。由于热源存在不同的型号和加热功率，借助进风温度TA和送风温度TB可判断热源选型是否合理，当选型合理时，可持续开启该热源，当选型不当造成加热功率过大时，会造成稳定运行时送风温度TB过高，影响用户体验，此时就需要关闭热源以停止预热，既确保了用户体验，又减少了热源的能耗。
图4示出了根据本申请的第四个实施例的预热控制方法的示意流程图。
如图4所示，该预热控制方法包括：
S402，响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1；
S404，当判断结果为是时，确认达到第一预设状态；
S406，判断保持第一预设状态的时长是否大于等于第一预设时长t1；
S408，当判断结果为是时，开启热源；
S410，判断进风温度TA是否大于等于第二预设温度T2；
S412，当判断结果为是时，判断送风温度TB、第三预设温度T3和第四预设温度T4是否满足TB-T3≥T4；
S414，当判断结果为是时，确认达到第二预设状态；
S416，判断保持第二预设状态的时长是否大于等于第二预设时长t2；
S418，当判断结果为是时，关闭热源。
在该实施例中，当进风温度TA高于第二预设温度T2且送风温度TB比第三预设温度T3高出至少第四预设温度T4持续第二预设时长t2时，认为加热功率过高且造成送风温度过高，发出关闭控制信号以控制热源的干触点断开，使热源关闭。通过检测进风温度TA是否高于第二预设温度T2，可首先判定可能出现加热过度的情况；在此基础上，判断送风温度TB是否达到第二预设状态，即判定热源对新风机送风预热后对空调系统的改善效果，进一步判断第二预设状态是否持续了第二预设时长t2以上，可确保送风温度TB已稳定于第二预设状态，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性。
在本申请的一个实施例中，优选地，第二预设温度T2的取值范围为8℃≤T2≤12℃；和/或第三预设温度T3的取值范围为10℃≤T3≤14℃；和/或第四预设温度T4的取值范围为1℃≤T4≤3℃；和/或第二预设时长t2的取值范围为9min≤t2≤11min。
在该实施例中，限定第二预设温度T2的取值范围为8℃≤T2≤12℃，其下限值保证了在进风温度TA足够高时才判定是否关闭热源，避免了过早关闭，其上限值避免了热源持续开启而增加不必要的能耗。限定第三预设温度T3的取值范围为10℃≤T3≤14℃，第四预设温度T4的取值范围为1℃≤T4≤3℃，确保了送风温度TB足够高时才判定是否关闭热源，保证了对空调系统的改善效果和热源的合理运行。限定第二预设时长t2的取值范围为9min≤t2≤11min，其下限值可为新风机预留足够的时间以确保其运行稳定，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性，其上限值避免了热源持续开启而增加不必要的能耗。可选地，第二预设温度T2为10℃，第三预设温度T3为12℃，第四预设温度T4为2℃，第二预设时长t2为10min。
图5示出了根据本申请的第五个实施例的预热控制方法的示意流程图。
如图5所示，该预热控制方法包括：
S502，响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1；
S504，当判断结果为是时，确认达到第一预设状态；
S506，判断保持第一预设状态的时长是否大于等于第一预设时长t1；
S508，当判断结果为是时，开启热源；
S510，根据进风温度TA和送风温度TB判定是否关闭热源；
S512，当根据进风温度TA和送风温度TB判定不关闭热源时，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障；
S514，当判断结果为是时，关闭热源。
在该实施例中，限定了关闭热源的另一个条件。由于理论上来说，空调系统运行制热模式时，若对引入的室外进风进行加热，一段时间后进风温度TA和送风温度TB就能满足一定预设条件，若未满足该预设条件，则进一步判断是否存在空调系统正在运行非制热模式或新风机故障等特殊情况，并在出现该特殊情况时关闭热源以减少不必要的能耗。
图6示出了根据本申请的第六个实施例的预热控制方法的示意流程图。
如图6所示，该预热控制方法包括：
S602，接收开机指令；
S604，判断进风温度TA是否小于等于第一预设温度T1；
S606，当判断结果为是时，确认达到第一预设状态；
S608，判断保持第一预设状态的时长是否大于等于第一预设时长t1；
S610，当判断结果为是时，开启热源；
S612，根据进风温度TA和送风温度TB判断是否关闭热源，若是，则转到S614，若否，则转到S618；
S614，开始计时；
S616，判断计时是否达到第三预设时长t3，若是，则返回S604，若否，则返回S616；
S618，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障；
S620，当判断结果为是时，关闭热源。
在该实施例中，对于热源的加热功率过高的情况，进一步限定了由于进风温度TA和送风温度TB较高而关闭热源时，经过第三预设时长t3后再次检测进风温度TA以确定是否需要再次开启热源，确保了在温度偏低时可及时预热新风，从而令热源间歇开启，弥补了热源选型不当的问题。
本申请第二方面的实施例提供了一种新风机的预热控制系统，用于空调系统的新风机，新风机包括进风口、送风口和热源，进风口用于引入室外新风，送风口用于为室内送风，热源位于进风口所在的一侧。
图7示出了根据本申请的第一个实施例的预热控制系统的示意框图。
如图7所示，该预热控制系统100包括：
启动单元102，用于响应于开机指令，根据进风温度TA判定是否开启热源。
本申请提供的预热控制系统100，使新风机在低温环境下依然能够正常运行，提高了应用该新风机的空调系统运行的安全性和可靠性。具体而言，空调系统运行制热模式时可为室内空气升温，配合新风机可将室外的新风引入室内，提高室内空气质量，但若新风机的进风温度TA过低，可能造成新风机无法启动，因此，当空调系统在制热模式下启动时，首先向新风机发送开机指令，启动单元102再根据进风温度TA判定是否开启热源，可在进 风温度TA不适宜时对室外新风进行预热以顺利启动新风机，继而开启空调系统内的其他器件，如电子膨胀阀、压缩机，从而实现在低温环境下空调系统运行制热模式时辅助开启新风机，满足市场上目前对低温环境下新风机开启的强烈需求。
在本申请的一个实施例中，优选地，启动单元102具体用于：响应于开机指令，判断进风温度TA是否小于等于第一预设温度T1，当判断结果为是时，确认达到第一预设状态，并判断保持第一预设状态的时长是否大于等于第一预设时长t1，当判断结果为是时，开启热源。
在该实施例中，当启动单元102检测到进风温度TA低于第一预设温度T1并持续第一预设时长t1后，发出开启控制信号以控制热源的干触点闭合，使热源开启。通过判断进风温度TA是否小于等于第一预设温度T1，首先满足了进风温度TA过低的判断需求；在此基础上，通过判断进风温度TA过低的第一预设状态是否持续了第一预设时长t1以上，可避免进风温度TA临时或因特殊原因过低的情况，提高了对进风情况的判断准确性，使得热源按需开启，确保了新风机的可靠性。具体地，在两次判断中结果为否时，表明无需加热，则不开启热源。
在本申请的一个实施例中，优选地，第一预设温度T1的取值范围为-5℃≤T1≤0℃；和/或第一预设时长t1的取值范围为2min≤t1≤4min。
在该实施例中，普通新风机在制热模式下的使用范围是-5℃以上，通过限定第一预设温度T1的取值范围为-5℃≤T1≤0℃，可满足进风温度TA在-5℃以下时的新风机开启需求；限定第一预设时长t1的取值范围为2min≤t1≤4min，其下限值足以规避进风温度TA临时或因特殊原因过低的情况，其上限值则确保了热源及时开启，提高了空调系统运行的安全性和可靠性。可选地，第一预设温度T1为0℃，第一预设时长t1为3min。
图8示出了根据本申请的第二个实施例的预热控制系统的示意框图。
如图8所示，该预热控制系统200包括：
启动单元202，用于响应于开机指令，根据进风温度TA判定是否开启热源；
第一关闭单元204，用于根据进风温度TA和送风温度TB判定是否关闭热源。
在该实施例中，限定了第一关闭单元204。由于热源存在不同的型号和加热功率，借助进风温度TA和送风温度TB可判断热源选型是否合理，当选型合理时，可持续开启该热源，当选型不当造成加热功率过大时，会造成稳定运行时送风温度TB过高，影响用户体验，此时第一关闭单元204关闭热源以停止预热，既确保了用户体验，又减少了热源的能耗。
在本申请的一个实施例中，优选地，第一关闭单元具体用于：判断进风温度TA是否大于等于第二预设温度T2，当判断结果为是时，判断送风温度TB、第三预设温度T3和第四预设温度T4是否满足TB-T3≥T4，当判断结果为是时，确认达到第二预设状态，并判断保 持第二预设状态的时长是否大于等于第二预设时长t2，当判断结果为是时，关闭热源。
在该实施例中，当第一关闭单元检测到进风温度TA高于第二预设温度T2且送风温度TB比第三预设温度T3高出至少第四预设温度T4持续第二预设时长t2时，认为加热功率过高且造成送风温度过高，发出关闭控制信号以控制热源的干触点断开，使热源关闭。通过检测进风温度TA是否高于第二预设温度T2，可首先判定可能出现加热过度的情况；在此基础上，判断送风温度TB是否达到第二预设状态，即判定热源对新风机送风预热后对空调系统的改善效果，进一步判断第二预设状态是否持续了第二预设时长t2以上，可确保送风温度TB已稳定于第二预设状态，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性。
在本申请的一个实施例中，优选地，第二预设温度T2的取值范围为8℃≤T2≤12℃；和/或第三预设温度T3的取值范围为10℃≤T3≤14℃；和/或第四预设温度T4的取值范围为1℃≤T4≤3℃；和/或第二预设时长t2的取值范围为9min≤t2≤11min。
在该实施例中，限定第二预设温度T2的取值范围为8℃≤T2≤12℃，其下限值保证了在进风温度TA足够高时才判定是否关闭热源，避免了过早关闭，其上限值避免了热源持续开启而增加不必要的能耗。限定第三预设温度T3的取值范围为10℃≤T3≤14℃，第四预设温度T4的取值范围为1℃≤T4≤3℃，确保了送风温度TB足够高时才判定是否关闭热源，保证了对空调系统的改善效果和热源的合理运行。限定第二预设时长t2的取值范围为9min≤t2≤11min，其下限值可为新风机预留足够的时间以确保其运行稳定，提高了对送风情况的判断准确性，避免了过早关闭热源，确保了新风机的可靠性，其上限值避免了热源持续开启而增加不必要的能耗。可选地，第二预设温度T2为10℃，第三预设温度T3为12℃，第四预设温度T4为2℃，第二预设时长t2为10min。
图9示出了根据本申请的第三个实施例的预热控制系统的示意框图。
如图9所示，该预热控制系统300包括：
启动单元302，用于响应于开机指令，根据进风温度TA判定是否开启热源；
第一关闭单元304，用于根据进风温度TA和送风温度TB判定是否关闭热源；
第二关闭单元306，用于当第一关闭单元304未关闭热源时，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障，并在判断结果为是时关闭热源。
在该实施例中，限定了第二关闭单元306。由于理论上来说，空调系统运行制热模式时，若对引入的室外进风进行加热，一段时间后进风温度TA和送风温度TB就能满足一定预设条件，若第一关闭单元304判定未满足该预设条件，则第二关闭单元306进一步判断是否存在空调系统正在运行非制热模式或新风机故障等特殊情况，并在出现该特殊情况时关闭热源以减少不必要的能耗。
图10示出了根据本申请的第四个实施例的预热控制系统的示意框图。
如图10所示，该预热控制系统400包括：
启动单元402，用于响应于开机指令，根据进风温度TA判定是否开启热源；
第一关闭单元404，用于根据进风温度TA和送风温度TB判定是否关闭热源；
计时单元406，用于当第一关闭单元404关闭热源时，开始计时，并在计时达到第三预设时长t3时，激活启动单元402以根据进风温度TA判定是否开启热源；
第二关闭单元408，用于当第一关闭单元404未关闭热源时，判断空调系统是否在制热模式以外的其他模式下运行或新风机是否故障，并在判断结果为是时关闭热源。
在该实施例中，对于热源的加热功率过高的情况，由于进风温度TA和送风温度TB较高而关闭热源时，计时单元406开始计时，并在经过第三预设时长t3后再次激活启动单元402检测进风温度TA，以确定是否需要再次开启热源，确保了在温度偏低时可及时预热新风，从而令热源间歇开启，弥补了热源选型不当的问题。
如图11所示，本申请第三方面的实施例提供了一种计算机设备5，包括存储器52、处理器54及存储在存储器52上并可在处理器54上运行的计算机程序，处理器54执行计算机程序时实现如上述任一实施例所述的预热控制方法的步骤，因而具有上述预热控制方法的全部有益技术效果，在此不再赘述。
本申请第四方面的实施例提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现如上述任一实施例所述的预热控制方法的步骤，因而具有上述预热控制方法的全部有益技术效果，在此不再赘述。
如图12所示，本申请第五方面的实施例提供了一种新风机6，包括壳体602、第一温度传感器604、第二温度传感器606、室内换热器608、热源和控制器。其中，壳体602上设有进风口614和送风口616，进风口614用于引入室外新风，送风口616用于为室内送风；第一温度传感器604位于进风口614处，用于检测进风温度；第二温度传感器606位于送风口616处，用于检测送风温度；室内换热器608位于壳体602内；热源位于壳体602内并位于进风口614和室内换热器608之间；控制器与热源电连接，用于控制热源的运行。
本申请提供的新风机6带有预热功能，通过在普通新风机上增设热源，由控制器根据第一温度传感器604和第二温度传感器606的检测值控制热源开启以预热由进风口614引入的室外新风，使新风机6在低温环境下依然能够正常运行，提高了应用该新风机6的空调系统运行的安全性和可靠性，满足用户在制热模式下开启新风机6的需求，改善室内空气污染，提供给用户舒适的室内环境。具体地，在室内换热器608和进风口614之间设置室内风机612以引导室外新风流向室内换热器608，如图12中的空心箭头所指的方向即为气流方向。此外，还可在壳体602上设置与室内空间相连通的回风口，当进风口614关闭、 回风口和送风口616打开时，空调系统进行室内空气循环，不引入新风。
在本申请的一个实施例中，优选地，热源为第三方热源610。
在该实施例中，热源为第三方热源610，与空调系统的制热循环无关，从而保证了低温的室外新风得到可靠预热，确保了新风机6在低温环境下能够正常开启。可选地，第三方热源610为燃气、电辅热等。具体地，控制器可发出控制信号以令第三方热源610的干触点闭合或断开，从而实现第三方热源610的开启或关闭。
在本申请的一个实施例中，优选地，控制器上设有如上述任一实施例所述的预热控制系统或如上述实施例所述的计算机设备或如上述实施例所述的计算机可读存储介质，因而具有上述预热控制方法及系统的全部有益技术效果，在此不再赘述。
本申请第五方面的实施例提供了一种空调系统，包括如上述任一实施例所述的新风机6，因而具有上述新风机6的全部有益技术效果，在此不再赘述。
具体地，空调系统还包括压缩机、节流装置、室外机7和四通换向阀，压缩机和节流装置分别用于增压和降压，室外机7内设有室外换热器，四通换向阀的四个端口分别与压缩机进气口、压缩机排气口、室内换热器608、室外换热器相连接。通过切换四通换向阀，空调系统可运行制冷模式或制热模式，当空调系统运行制热模式时，室内换热器608作为冷凝器，室外换热器作为蒸发器；当空调系统运行制冷模式时，室内换热器608作为蒸发器，室外换热器作为冷凝器。
此外，由于空调系统在低温环境下处理室内空气污染的方法多种多样，对于采用其他方式处理室内空气污染的情况，如加设空气过滤装置时，也可加设第三方热源610来预热。
在本申请中，术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上所述仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (15)

  1. 一种新风机的预热控制方法，用于空调系统的新风机，其特征在于，所述新风机包括进风口、送风口和热源，所述进风口用于引入室外新风，所述送风口用于为室内送风，所述热源位于所述进风口所在的一侧，所述新风机的预热控制方法包括：
    响应于开机指令，根据进风温度TA开启所述热源。
  2. 根据权利要求1所述的预热控制方法，其特征在于，所述根据进风温度TA开启所述热源的操作包括：
    确认所述进风温度TA小于或等于第一预设温度T1，即确认达到第一预设状态；
    并确认保持所述第一预设状态的时长大于或等于第一预设时长t1；
    开启所述热源。
  3. 根据权利要求2所述的预热控制方法，其特征在于，
    所述第一预设温度T1的取值范围为-5℃≤T1≤0℃；和/或
    所述第一预设时长t1的取值范围为2min≤t1≤4min。
  4. 根据权利要求1至3中任一项所述的预热控制方法，其特征在于，还包括：
    根据所述进风温度TA和送风温度TB关闭所述热源。
  5. 根据权利要求4所述的预热控制方法，其特征在于，所述根据所述进风温度TA和送风温度TB关闭所述热源的步骤包括：
    确认所述进风温度TA大于或等于第二预设温度T2,并确认所述送风温度TB、第三预设温度T3和第四预设温度T4满足TB-T3≥T4，即确认达到第二预设状态；
    确认保持所述第二预设状态的时长大于或等于第二预设时长t2；
    关闭所述热源。
  6. 根据权利要求5所述的预热控制方法，其特征在于，
    所述第二预设温度T2的取值范围为8℃≤T2≤12℃；和/或
    所述第三预设温度T3的取值范围为10℃≤T3≤14℃；和/或
    所述第四预设温度T4的取值范围为1℃≤T4≤3℃；和/或
    所述第二预设时长t2的取值范围为9min≤t2≤11min。
  7. 根据权利要求4所述的预热控制方法，其特征在于，还包括：
    根据所述进风温度TA和所述送风温度TB确认不关闭所述热源，确认所述空调系统在制热模式以外的其他模式下运行或所述新风机故障；
    关闭所述热源。
  8. 根据权利要求4所述的预热控制方法，其特征在于，还包括：
    根据所述进风温度TA和所述送风温度TB确认关闭所述热源，开始计时；
    确认计时达到第三预设时长t3，执行所述根据进风温度TA开启所述热源的操作。
  9. 一种新风机的预热控制系统，用于空调系统的新风机，其特征在于，所述新风机包括进风口、送风口和热源，所述进风口用于引入室外新风，所述送风口用于为室内送风，所述热源位于所述进风口所在的一侧，所述新风机的预热控制系统包括：
    启动单元，用于响应于开机指令，根据进风温度TA开启所述热源。
  10. 一种计算机设备，包括存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，其特征在于，所述处理器执行所述计算机程序时实现如权利要求1至8中任一项所述方法的步骤。
  11. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时实现如权利要求1至8中任一项所述方法的步骤。
  12. 一种新风机，其特征在于，包括：
    壳体，所述壳体上设有进风口和送风口，所述进风口用于引入室外新风，所述送风口用于为室内送风；
    第一温度传感器，位于所述进风口处，用于检测进风温度；
    第二温度传感器，位于所述送风口处，用于检测送风温度；
    室内换热器，位于所述壳体内；
    热源，位于所述壳体内并位于所述进风口和所述室内换热器之间；及
    控制器，用于控制所述热源的运行。
  13. 根据权利要求12所述的新风机，其特征在于，
    所述热源为第三方热源。
  14. 根据权利要求12或13所述的新风机，其特征在于，所述控制器上设有如权利要求9所述的新风机的预热控制系统或如权利要求10所述的计算机设备或如权利要求11所述的计算机可读存储介质。
  15. 一种空调系统，其特征在于，包括如权利要求12至14中任一项所述的新风机。
PCT/CN2019/087423 2018-05-18 2019-05-17 新风机的预热控制方法及系统 WO2019219079A1 (zh)

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CN110230863A (zh) * 2019-05-09 2019-09-13 宁波奥克斯电气股份有限公司 新风控制方法及新风装置
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