Air conditioning system, control method and device thereof, storage medium and program product

Abstract

The invention discloses an air conditioning system and a control method and device thereof, a storage medium and a computer program product, a closed shell is arranged on the periphery of an air disc in the air conditioning system, and an air return port air valve, an air outlet air valve and an air mixing port air valve are correspondingly arranged at an air return port, an air outlet and an air mixing port; the method comprises the following steps: after starting up, controlling the air conditioning system to operate for initial set time according to target temperature and humidity; and according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature face of the water pan and the temperature of the motor, opening and closing and opening degrees of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve during opening are controlled, and / or the rotating speed of the fan is controlled. According to the scheme, according to the relative humidity of the indoor environment, the area of the low-temperature face of the water pan and the temperature of the motor, the air disc is controlled to operate at least one air supply mode of the outer circulation mode, the proportional air mixing mode and the inner circulation mode, the gears of the draught fan are controlled, the consistency difference of the air disc in different areas is adjusted, and the operation performance of the air conditioning system is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of air conditioning systems, and particularly relates to a control method and device of an air conditioning system, the air conditioning system, a storage medium and a computer program product, and more particularly to a composite adjustment and control method and device based on a box-type air disc in an air conditioning system, the air conditioning system, a storage medium and a computer program product. BACKGROUND

[0002] Fan-coil, referred to as air disc, is a terminal product of an air conditioning system (such as a commercial air conditioning system), used to adjust indoor environmental comfort (such as temperature and humidity comfort), and is widely used in commercial buildings. However, due to the differences in climate and humidity in different regions, the consistency of the air disc in different regions is poor, which affects the operation performance of the air conditioning system.

[0003] The above content is only used to assist in understanding the technical solutions of the present application and does not represent the acknowledgement of the above content as prior art. SUMMARY

[0004] The purpose of the present application is to provide a control method and device of an air conditioning system, the air conditioning system, a storage medium and a computer program product, to solve the problem that the air disc in the air conditioning system is affected by the differences in climate and humidity in different regions, resulting in poor consistency of the air disc in different regions, which affects the operation performance of the air conditioning system, to achieve the effect of controlling at least one air supply mode in the external circulation mode, proportional air mixing mode and internal circulation mode of the air disc by the relative humidity of the indoor environment, the area of the low-temperature surface of the water pan and the temperature of the motor, and controlling the gear of the fan, realizing the anti-condensation control of the water pan and adjusting the operating conditions of the motor, to adjust the consistency of the air disc in different regions and improve the operation performance of the air conditioning system.

[0005] The present application provides a control method of an air conditioning system, the air conditioning system having an air disc, a closed shell being provided on the periphery of the air disc; the air disc having a fan, a water pan, a motor, an air return port, an air outlet and an air mixing port, an air return port damper being provided on the air return port, an air outlet damper being provided on the air outlet, and an air mixing port damper being provided on the air mixing port; the control method of the air conditioning system comprising: after the air conditioning system is started, controlling the air conditioning system to run at a target temperature and humidity for an initial setting time; obtaining the indoor relative humidity of the air conditioning system, obtaining the area of the low-temperature surface of the water pan, and obtaining the temperature of the motor; according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan and the temperature of the motor, controlling the opening and closing of the air return port damper, the air outlet damper and the air mixing port damper, and the opening degree when opened, and / or controlling the rotating speed of the fan.

[0006] In some embodiments, when the return air outlet damper is fully open, the outlet air damper is fully open, and the mixed air damper is closed, the air disc operates in a preset external circulation air supply mode; when the return air outlet damper is fully open, the outlet air damper is fully open, and the mixed air damper is opened according to a required mixed air ratio, the air disc operates in a preset proportional mixed air supply mode; when the return air outlet damper is closed, the outlet air damper is fully open, and the mixed air damper is fully open, the air disc operates in a preset internal circulation air supply mode.

[0007] In some embodiments, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened, and / or the speed of the fan are controlled, including: determining whether the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor; if it is determined that the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor, the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened are controlled to make the air disc operate in a preset internal circulation air supply mode for a first set time; determining whether the temperature of the motor is less than or equal to the normal temperature threshold of the motor; if it is determined that the temperature of the motor is less than or equal to the normal temperature threshold of the motor, returning to re-control the air conditioning system to operate in the target temperature and humidity for an initial set time; if it is determined that the temperature of the motor is greater than the normal temperature threshold of the motor, returning to continue to control the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened to make the air disc operate in a preset internal circulation air supply mode.

[0008] In some embodiments, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened, and / or the speed of the fan are controlled, further including: in the case where it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor, determining whether the indoor relative humidity of the air conditioning system is within a set humidity range; if it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range, the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened are controlled to make the air disc operate in a preset proportional mixed air supply mode for a second set time.

[0009] In some embodiments, the setting humidity range includes: a first interval, a second interval and a third interval in which the humidity value increases sequentially; and the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset proportional mixed air supply mode for a second preset time, including: determining the indoor relative humidity of the air conditioning system belongs to which interval in the setting humidity range; if it is determined that the indoor relative humidity of the air conditioning system is in the first interval, the opening degree of the mixed air outlet air valve when opened is controlled to be a first set opening degree, so that the air disc runs in the preset proportional mixed air supply mode for a second preset time; if it is determined that the indoor relative humidity of the air conditioning system is in the second interval, the opening degree of the mixed air outlet air valve when opened is controlled to be a second set opening degree, so that the air disc runs in the preset proportional mixed air supply mode for a second preset time; if it is determined that the indoor relative humidity of the air conditioning system is in the third interval, the opening degree of the mixed air outlet air valve when opened is controlled to be a third set opening degree, so that the air disc runs in the preset proportional mixed air supply mode for a second preset time.

[0010] In some embodiments, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and / or the speed of the fan is controlled, and further includes: in the case where it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor, and it is determined that the indoor relative humidity of the air conditioning system is not in the setting humidity range, it is determined whether the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the setting humidity range, and whether the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the setting humidity range; if it is determined that the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the setting humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode for a third preset time; if it is determined that the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the setting humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset external circulation air supply mode for a fourth preset time.

[0011] In some embodiments, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, and / or the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprising: after the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened are controlled to make the air pan run in the preset proportional mixed air supply mode for a second set time, determining the change rate of the area of the low-temperature surface of the water pan in a set detection period according to the area of the low-temperature surface of the water pan, denoted as the area change rate of the low-temperature surface of the water pan; determining whether the area of the low-temperature surface of the water pan is less than a first set area; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened are controlled to make the air pan run in a preset internal circulation air supply mode, and the fan is controlled to run at a preset lowest gear for a first set time; if it is determined that the area of the low-temperature surface of the water pan is less than the first set area, it is determined whether the area change rate of the low-temperature surface of the water pan is less than or equal to a first set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the first set change rate, the air conditioning system is maintained in the current running state for a second set time, and then returns to re-control the air conditioning system to run at the target temperature and humidity for an initial set time.

[0012] In some embodiments, the opening and closing and opening degree of the return air outlet air valve, the outlet air valve and the mixed air valve, and / or the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprising: recording the area of the low-temperature surface of the water pan obtained in the current detection period as the current value of the area of the low-temperature surface of the water pan; recording the area of the low-temperature surface of the water pan obtained in the last detection period as the last value of the area of the low-temperature surface of the water pan; if it is determined that the area change rate of the low-temperature surface of the water pan is greater than the first set change rate, it is determined whether the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan; if it is determined that the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan, the air damper of the fan is controlled to run at a preset gear for a second set time, and then returns to control the air conditioning system to run at the target temperature and humidity for an initial set time; or the opening degree of the mixed air valve is controlled to decrease by a preset opening degree, and then the fan is controlled to run in a preset proportional mixed air supply mode for a second set time, and then returns to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the current value of the area of the low-temperature surface of the water pan is greater than or equal to the last value of the area of the low-temperature surface of the water pan, the air damper of the fan is controlled to run at a preset gear for a second set time, and then returns to control the air conditioning system to run at the target temperature and humidity for an initial set time; or the opening degree of the mixed air valve is controlled to increase by a preset opening degree, and then the fan is controlled to run in a preset proportional mixed air supply mode for a second set time, and then returns to control the air conditioning system to run at the target temperature and humidity for an initial set time.

[0013] In some embodiments, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, and / or the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprising: after the air pan is controlled to run in the preset internal circulation air supply mode for a third set time, or after the air pan is controlled to run in the preset internal circulation air supply mode and the fan is controlled to run at the preset lowest gear for a first set time, the area change rate of the low-temperature surface of the water pan is determined according to the area of the low-temperature surface of the water pan, which is recorded as the area change rate of the low-temperature surface of the water pan; it is determined whether the area change rate of the low-temperature surface of the water pan is less than or equal to a second set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate, the air gear of the fan is controlled to be raised by a preset gear for a fourth set time, and then it is returned to redetermine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is greater than the second set change rate, it is determined whether the area of the low-temperature surface of the water pan is less than a second set area; if it is determined that the area of the low-temperature surface of the water pan is less than the second set area, it is returned to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the second set area, it is returned to continue to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode for a third set time.

[0014] In some embodiments, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, and / or the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprising: after the air pan is controlled to run in the preset external circulation air supply mode for the fourth set time, it is determined whether the area of the low-temperature surface of the water pan is less than the first set area; if it is determined that the area of the low-temperature surface of the water pan is less than the first set area, the air conditioning system is controlled to run at the target temperature and humidity for the initial set time; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened are continued to be controlled, so that the air pan runs in the preset internal circulation air supply mode, and the fan runs at the preset lowest gear for the first set time.

[0015] To match the above method, another aspect of the present application provides a control device of an air pan. The air conditioning system has an air pan, and a closed shell is arranged at the periphery of the air pan. The air pan has a fan, a water pan, a motor, a return air outlet, an outlet air outlet, and a mixed air outlet. A return air outlet air valve is arranged at the return air outlet, an outlet air outlet air valve is arranged at the outlet air outlet, and a mixed air outlet air valve is arranged at the mixed air outlet. The control device of the air conditioning system comprises: a control unit configured to control the air conditioning system to run at a target temperature and humidity for an initial set time after the air conditioning system is turned on; an acquisition unit configured to acquire the indoor relative humidity of the air conditioning system, acquire the area of the low-temperature surface of the water pan, and acquire the temperature of the motor; and the control unit is further configured to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, and / or the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor.

[0016] In some embodiments, the air pan runs in a preset external circulation air supply mode when the return air outlet air valve is fully opened, the outlet air valve is fully opened, and the mixed air valve is closed; the air pan runs in a preset proportional mixed air supply mode when the return air outlet air valve is fully opened, the outlet air valve is fully opened, and the mixed air valve is opened at a required mixed air proportion opening degree; and the air pan runs in a preset internal circulation air supply mode when the return air outlet air valve is closed, the outlet air valve is fully opened, and the mixed air valve is fully opened.

[0017] In some embodiments, the control unit controls the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and comprises: determining whether the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor; if it is determined that the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor, controlling the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, so that the air disc operates in a preset internal circulation air supply mode for a first set time; determining whether the temperature of the motor is less than or equal to the normal temperature threshold of the motor; if it is determined that the temperature of the motor is less than or equal to the normal temperature threshold of the motor, returning to re-control the air conditioning system to operate at the target temperature and humidity for an initial set time; if it is determined that the temperature of the motor is greater than the normal temperature threshold of the motor, returning to continue to control the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, so that the air disc operates in a preset internal circulation air supply mode.

[0018] In some embodiments, the control unit controls the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprises: in the case where it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor, determining whether the indoor relative humidity of the air conditioning system is within a set humidity range; if it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range, controlling the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, so that the air disc operates in a preset proportional mixed air supply mode for a second set time.

[0019] In some embodiments, a humidity range is set, including a first interval, a second interval, and a third interval where the humidity values ​​increase sequentially. The control unit controls the opening and closing of the return air valve, the outlet air valve, and the mixing air valve, as well as the opening degree when they are open, so that the fan coil unit operates in a preset proportional air mixing mode for a second preset time. This includes: determining the interval to which the indoor relative humidity of the air conditioning system falls within the set humidity range; if the indoor relative humidity of the air conditioning system is determined to be within the first interval, then controlling the opening degree of the mixing air valve to a first preset opening degree, so that the fan coil unit operates in the preset proportional air mixing mode for a second preset time; if the indoor relative humidity of the air conditioning system is determined to be within the second interval, then controlling the opening degree of the mixing air valve to a second preset opening degree, so that the fan coil unit operates in the preset proportional air mixing mode for a second preset time; if the indoor relative humidity of the air conditioning system is determined to be within the third interval, then controlling the opening degree of the mixing air valve to a third preset opening degree, so that the fan coil unit operates in the preset proportional air mixing mode for a second preset time.

[0020] In some embodiments, the control unit controls the opening and closing of the return air vent valve, the outlet air vent valve, and the mixing air vent valve, as well as the opening degree when open, and / or controls the fan speed, based on at least one of the indoor relative humidity of the air conditioning system, the area of ​​the low-temperature surface of the drip tray, and the temperature of the motor. It further includes: if it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor, and it is determined that the indoor relative humidity of the air conditioning system is not within the set humidity range, determining whether the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range, and determining the indoor relative humidity of the air conditioning system... If the indoor relative humidity is greater than or equal to the upper limit of the set humidity range, then the opening and closing of the return air vent valve, the air outlet valve, and the mixing air vent valve, as well as their opening degree, are controlled to make the fan coil unit run in the preset internal circulation air supply mode for a third set time. If the indoor relative humidity is less than or equal to the lower limit of the set humidity range, then the opening and closing of the return air vent valve, the air outlet valve, and the mixing air vent valve, as well as their opening degree, are controlled to make the fan coil unit run in the preset external circulation air supply mode for a fourth set time.

[0021] In some embodiments, the control unit, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, controls the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the fan, further comprises: after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset proportional mixed air supply mode for a second set time, according to the area of the low-temperature surface of the water pan, determining the change rate of the area of the low-temperature surface of the water pan in a set detection period, recorded as the area change rate of the low-temperature surface of the water pan; determining whether the area of the low-temperature surface of the water pan is less than a first set area; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in a preset internal circulation air supply mode, and the fan is controlled to run at a preset lowest gear for a first set time; if it is determined that the area of the low-temperature surface of the water pan is less than the first set area, determining whether the area change rate of the low-temperature surface of the water pan is less than or equal to a first set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the first set change rate, controlling the air conditioning system to maintain the current running state for a second set time, and then returning to re-control the air conditioning system to run at the target temperature and humidity for an initial set time.

[0022] In some embodiments, the control unit controls the opening and closing of the return air outlet damper, the outlet air damper and the mixed air damper, the opening degree when opened, and / or the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprises: recording the area of the low-temperature surface of the water pan obtained in the current detection period as the current value of the area of the low-temperature surface of the water pan; recording the area of the low-temperature surface of the water pan obtained in the last detection period as the last value of the area of the low-temperature surface of the water pan; if it is determined that the area change rate of the low-temperature surface of the water pan is greater than a first set change rate, determining whether the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan; if it is determined that the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan, controlling the air damper of the fan to run at a lower preset gear for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; or controlling the opening degree of the mixed air damper to decrease by a preset opening degree, and then making the fan run in a preset proportional mixed air supply mode for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the current value of the area of the low-temperature surface of the water pan is greater than or equal to the last value of the area of the low-temperature surface of the water pan, controlling the air damper of the fan to run at a higher preset gear for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; or controlling the opening degree of the mixed air damper to increase by a preset opening degree, and then making the fan run in a preset proportional mixed air supply mode for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time.

[0023] In some embodiments, the control unit, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, controls the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the fan, further comprises: after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode for a third set time, or after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode and controls the fan to run at the preset lowest gear for a first set time, according to the area of the low-temperature surface of the water pan, determines the change rate of the area of the low-temperature surface of the water pan in a set detection period, which is recorded as the area change rate of the low-temperature surface of the water pan; determines whether the area change rate of the low-temperature surface of the water pan is less than or equal to a second set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate, the fan gear is controlled to be raised by a preset gear for a fourth set time, and then returns to re-determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is greater than the second set change rate, it is determined whether the area of the low-temperature surface of the water pan is less than a second set area; if it is determined that the area of the low-temperature surface of the water pan is less than the second set area, it returns to re-control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the second set area, it returns to continue to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode for a third set time.

[0024] In some embodiments, the control unit controls the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan, and the temperature of the motor, and further comprises: after controlling the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset external circulation air supply mode for a fourth set time, determining whether the area of the low temperature surface of the water pan is less than a first set area; if it is determined that the area of the low temperature surface of the water pan is less than the first set area, returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the area of the low temperature surface of the water pan is greater than or equal to the first set area, continuing to control the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode and controls the fan to run at the preset lowest gear for a first set time.

[0025] In another aspect, the present application provides an air conditioning system matched with the above device, comprising the control device of the air pan.

[0026] In another aspect, the present application provides a storage medium matched with the above method, comprising a stored program, wherein when the program runs, the device where the storage medium is located executes the steps of the control method of the air conditioning system.

[0027] In another aspect, the present application provides a computer program product matched with the above method, comprising a computer program which, when executed by a processor, realizes the steps of the control method of the air conditioning system.

[0028] Therefore, the scheme of the present application, for the air conditioning system with an air pan, sets a closed shell (such as a heat preservation shell 1) on the periphery of the air pan to form a box-type air pan, sets a return air outlet air valve (such as a first air valve 51) at the return air outlet of the air pan, sets an outlet air outlet air valve (such as a second air valve 52) at the outlet air outlet of the air pan, and sets a mixed air outlet air valve (such as a third air valve 53) at the mixed air outlet of the air pan; after the air conditioning system is started and runs for a period of time (such as a time m0) according to preset parameters, according to the indoor environment relative humidity (such as the real-time relative humidity RH1) and the temperature of the motor (such as the motor temperature T1), the control unit controls the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the fan, and further comprises: after controlling the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset external circulation air supply mode for a fourth set time, determining whether the area of the low temperature surface of the water pan is less than a first set area; if it is determined that the area of the low temperature surface of the water pan is less than the first set area, returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the area of the low temperature surface of the water pan is greater than or equal to the first set area, continuing to control the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode and controls the fan to run at the preset lowest gear for a first set time. ), the area of the low temperature surface of the water receiving tray (such as the area Si of the low temperature surface of the heat preservation water receiving tray 7) in the air disc, and the temperature of the motor of the fan in the air disc (such as the real-time temperature Ti), to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree ratio when opened, to execute at least one of the working modes of the external circulation mode, the proportional air mixing mode and the internal circulation mode, and to control the gear of the fan; thereby, by controlling the air disc to run at least one of the external circulation mode, the proportional air mixing mode and the internal circulation mode according to the indoor relative humidity, the area of the low temperature surface of the water receiving tray and the temperature of the motor, and controlling the gear of the fan, the condensation control of the water receiving tray is realized, and the operation condition of the motor is adjusted to adjust the consistency difference of the air disc in different regions, and the operation performance of the air conditioning system is improved.

[0029] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent from the description, or can be learned by practice of the present application.

[0030] The technical solutions of the present application will be further described in detail below with the help of the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 Flowchart of an embodiment of the control method of the air conditioning system of the present application;

[0032] Figure 2 Flowchart of an embodiment of the process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the temperature of the motor in the method of the present application;

[0033] Figure 3 Flowchart of an embodiment of the first process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system in the method of the present application;

[0034] Figure 4 Flowchart of an embodiment of the process of making the air disc run in the preset proportional air mixing mode for the second set time in the method of the present application;

[0035] Figure 5 Flowchart of an embodiment of the second process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system in the method of the present application;

[0036] Figure 6 Flowchart of an embodiment of the first process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air outlet air valve and the rotating speed of the fan according to the area of the low temperature surface of the water receiving tray in the method of the present application;

[0037] Figure 7 Flow chart of an embodiment of a second process for controlling at least one of the rotation speed of the return air outlet air valve, the outlet air outlet air valve, the mixed air outlet air valve and the fan according to the area of the low temperature surface of the water receiving tray in the method of the present application;

[0038] Figure 8 Flow chart of an embodiment of a third process for controlling at least one of the rotation speed of the return air outlet air valve, the outlet air outlet air valve, the mixed air outlet air valve and the fan according to the area of the low temperature surface of the water receiving tray in the method of the present application;

[0039] Figure 9 Flow chart of an embodiment of a fourth process for controlling at least one of the rotation speed of the return air outlet air valve, the outlet air outlet air valve, the mixed air outlet air valve and the fan according to the area of the low temperature surface of the water receiving tray in the method of the present application;

[0040] Figure 10 Structure diagram of an embodiment of the control device of the air receiving tray of the present application;

[0041] Figure 11 Structure diagram of the composite adjustment device of the box type air receiving tray;

[0042] Figure 12 Flow diagram of the outer circulation mode air field of the composite adjustment device of the box type air receiving tray;

[0043] Figure 13 Flow diagram of the mixed air mode air field of the composite adjustment device of the box type air receiving tray;

[0044] Figure 14 Flow diagram of the inner circulation mode air field of the composite adjustment device of the box type air receiving tray;

[0045] Figure 15 Flow chart of the composite adjustment control method of the box type air receiving tray.

[0046] In the embodiments of the present application, the reference signs in the drawings are as follows in combination with the drawings:

[0047] 1-heat preservation shell; 2-fan; 3-motor; 4-cooler assembly; 51-first air valve; 52-second air valve; 53-third air valve; 6-outlet air outlet; 7-heat preservation water receiving tray; 81-return air outlet temperature and humidity monitoring device; 82-motor temperature monitoring device; 83-water receiving tray temperature control surface monitoring device; 9-return air inlet; 10-mixed air inlet; 102-acquisition unit; 104-control unit. DETAILED DESCRIPTION

[0048] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0049] It is considered that the consistency of the air disc in the air conditioning system is different in different regions due to the difference in climate temperature and humidity, which affects the operation performance of the air conditioning system. Specifically, due to the difference in climate temperature and humidity in different regions of the world, the service life, maintenance measures, material requirements and other consistencies of the air disc in different regions are poor, especially the use of core components such as motors and water pans in high temperature and high humidity environments is even more worrying, which affects the operation performance of the air conditioning system. The water pan in the air disc is an external water pan, and the water pan in the conventional indoor unit such as the ducted air conditioner is an internal water pan, and the external water pan is more reliable.

[0050] Therefore, the scheme of the present application proposes a control method of an air conditioning system, specifically a composite regulation control method based on a box-type air disc in an air conditioning system, which adopts an air disc and a control mode that can be compatible with wide range of climate conditions and stable operation, detects air temperature and humidity, and executes external circulation, proportional air mixing and internal circulation. The method can prevent and remove condensation of the heat preservation water pan 7, and can also adjust the operation condition of the motor in high temperature and high humidity, solve the consistency difference of the air disc in different regions, and improve the operation performance of the air conditioning system.

[0051] According to the embodiments of the present application, a control method of an air conditioning system is provided, as shown in Figure 1 The flowchart of an embodiment of the method of the present application. The air conditioning system has an air disc, and a closed shell is arranged on the periphery of the air disc; the air disc has a fan, a water pan, a motor, a return air inlet, an air outlet and a mixed air inlet, a return air inlet valve is arranged at the return air inlet, an air outlet valve is arranged at the air outlet, and a mixed air inlet valve is arranged at the mixed air inlet; the closed shell is a heat preservation shell 1 as shown in Figure 11 The fan is a fan 2 as shown in Figure 11 The water pan is a heat preservation water pan 7 as shown in Figure 11 The motor is a motor 3 as shown in Figure 11 The return air inlet is a return air inlet 9 as shown in Figure 11 The air outlet is an air outlet 6 as shown in Figure 11 The mixed air inlet is a mixed air inlet 10 as shown in Figure 11 The return air inlet valve (such as a first air valve 51), the air outlet valve (such as a second air valve 52) and the mixed air inlet valve (such as a third air valve 53).Figure 11 This is a schematic diagram of the composite adjustment device for a box-type fan coil unit. Figure 11 The composite regulating device of the box-type fan coil unit shown includes: a conventional fan coil unit, an insulated shell 1, a return air inlet (i.e., return air inlet 9) damper (first damper 51), an outlet air outlet 6 damper (second damper 52), a mixing air inlet (i.e., mixing air inlet 10) damper (third damper 53), a return air inlet temperature and humidity monitoring device 81, a motor temperature monitoring device 82, and a water tray temperature control surface (i.e., water tray low temperature surface) monitoring device 83. The insulated shell 1 can be made of sheet metal, with sponge insulation inside and outside the sheet metal shell; the insulated shell can be bolted to the top cover of the fan coil unit. The mixing air inlet is where a portion of the air that has been cooled and dehumidified by the surface cooler assembly 4 is transported to the return air inlet for mixing, and then passed to the surface cooler assembly 4 again for cooling and dehumidification. When the air that has been cooled and dehumidified by the surface cooler assembly 4 passes over the surface of the water receiving pan, the air temperature on the outer surface of the water receiving pan is reduced, thus reducing the possibility of condensation. At the same time, the generated low-temperature dry airflow can further remove the condensation on the surface of the water receiving pan. Figure 11 Compared to conventional fan coil units, this design adds an insulated shell 1, internal air valves (such as the first air valve 51, the second air valve 52, and the third air valve 53), and a water collection tray temperature control surface monitoring device 83. A conventional fan coil unit includes a fan 2, a motor 3, a surface cooler assembly 4, and an insulated water collection tray 7. The insulated water collection tray 7 is a standard water collection tray, consisting of a 6mm-9mm thick insulating sponge attached to the outside of a sheet metal water collection tray; preferably, an 8mm thick insulating sponge is attached to the outside of the sheet metal water collection tray. In this invention, the fan coil unit (i.e., a conventional fan coil) and the water collection tray are standard functions. The insulation shell 1 serves to seal the fan coil and provide insulation. The first air valve 51, the second air valve 52, and the third air valve 53 respectively regulate the airflow at the return air inlet, the air outlet, and the mixing air inlet. The return air inlet temperature and humidity monitoring device 81 detects the relative humidity of the return air, the motor temperature monitoring device 82 detects the motor temperature rise, and the water collection tray temperature control surface monitoring device 83 is responsible for detecting the low-temperature area, condensation area, and rate of change of the insulation water collection tray 7. The temperature value of the condensation surface, i.e., the low-temperature surface, is less than or equal to the dew point temperature. In the solution of this invention, as... Figure 1 As shown, the control method of the air conditioning system includes steps S110 to S130.

[0052] In step S110, after the air conditioning system is turned on, the air conditioning system is controlled to operate at the target temperature and humidity for an initial set time; wherein, the target temperature and humidity is such as the target dry-bulb temperature T. 设干 Or target wet-bulb temperature T 设湿 and the target relative humidity ψ 设 .

[0053] In step S120, after controlling the air conditioning system to operate at the target temperature and humidity for an initial set time, the indoor relative humidity of the air conditioning system, the area of ​​the low-temperature surface of the water collection tray, and the temperature of the motor are acquired according to a set detection cycle; wherein, the initial set time is, for example, m0 minutes, and the indoor relative humidity of the air conditioning system is, for example, real-time relative humidity. The area of ​​the low-temperature surface of the water collection tray is the same as the area Si of the low-temperature surface of the insulated water collection tray 7, and the temperature of the motor is the same as the real-time temperature Ti of the motor. The low-temperature surface of the water collection tray refers to the surface among multiple surfaces on the outer insulation layer of the insulated water collection tray 7 whose temperature is lower than a certain preset temperature value, which is slightly higher than the current air dew point temperature. In the solution of this invention, monitoring and detection are mainly concentrated around the drain outlet of the water collection tray, because this is the low surface of the water collection tray and the place where condensation collects.

[0054] In step S130, based on at least one of the indoor relative humidity of the air conditioning system, the area of ​​the low-temperature surface of the water collection pan, and the temperature of the motor, the opening and closing of the return air vent valve, the air outlet valve, and the mixing air vent valve, as well as the opening degree when opening, and / or the speed of the fan are controlled, so as to achieve anti-condensation control of the water collection pan and adjust the operating conditions of the motor to adjust the consistency differences of the fan coil unit in different regions and improve the operating performance of the air conditioning system.

[0055] The present invention, based on a box-type fan coil composite regulation and control scheme, detects air temperature and humidity, controls the opening and closing of the return air inlet valve, the outlet air valve, and the mixing air inlet valve, as well as the opening degree when opening, and / or controls the fan speed, to achieve the purpose of preventing and removing condensation on the insulation drip tray 7. At the same time, it can adjust the operating conditions of the motor under high temperature and high humidity, prevent condensation from occurring on the insulation layer of the fan coil drip tray (such as the insulation drip tray 7) in high humidity environments, prevent overheating of the fan coil motor (such as the motor 3) in high temperature environments, and effectively solve the problem of inconsistency in the design, maintenance, and use of fan coils across a wide range of climates globally.

[0056] In some embodiments, when the return air inlet valve is fully open, the outlet air valve is fully open, and the mixing air inlet valve is closed, the fan coil unit operates in a preset external circulation air supply mode; the preset external circulation air supply mode is similar to the external circulation mode of the fan coil unit. When the return air inlet valve is fully open, the outlet air valve is fully open, and the mixing air inlet valve is opened according to the required mixing ratio, the fan coil unit operates in a preset proportional mixing air supply mode; the preset proportional mixing air supply mode is similar to the proportional mixing mode of the fan coil unit. When the return air inlet valve is closed, the outlet air valve is fully open, and the mixing air inlet valve is fully open, the fan coil unit operates in a preset internal circulation air supply mode; the preset internal circulation air supply mode is similar to the internal circulation mode of the fan coil unit.

[0057] Figure 12 This is a schematic diagram of the airflow in the external circulation mode of the composite adjustment device of the box-type fan coil unit. When the relative humidity of the indoor air is low and condensation is difficult to form, that is, when the internal circulation start threshold is reached, the return air inlet valve (first air valve 51) is fully open, the outlet air valve (second air valve 52) is fully open, and the mixing air inlet valve (third air valve 53) is closed. The composite adjustment device of the box-type fan coil unit has the same function as the conventional fan coil unit. The return air is treated for temperature and humidity through the surface cooler assembly 4 and blown into the room to achieve the purpose of indoor temperature and humidity regulation.

[0058] Figure 13 This is a schematic diagram of the airflow in the mixed-air mode of the composite regulating device of the box-type fan coil unit. When the relative humidity of the indoor air is between high and low humidity, condensation may form, which means that the mixed-air start-up threshold is reached. At this time, the return air valve (first air valve 51) is fully open, the air outlet valve (second air valve 52) is fully open, and the mixed air outlet valve (third air valve 53) is opened according to the required mixed-air ratio. The composite regulating device of the box-type fan coil unit can circulate some of the low-temperature and low-humidity air that has been treated by the surface cooler component 4 through the insulated water collection pan 7 to the return air outlet, thereby achieving the purpose of regulating and reducing condensation formation; at the same time, it ensures that some air is blown normally into the room to achieve the purpose of indoor temperature and humidity regulation.

[0059] In the solution of the present invention, the air mixing mode can select the corresponding air mixing ratio and air mixing opening according to the current relative humidity of the air, so as to achieve fine-grained control of the condensation area of ​​the heat preservation water receiving pan 7, and the adjustment effect is more reasonable.

[0060] Figure 14 This is a schematic diagram of the airflow in the internal circulation mode of the composite regulating device of the box-type fan coil unit. When the relative humidity of the indoor air is very high and condensation is easily formed, that is, when the internal circulation start threshold is reached, the return air valve (first air valve 51) is closed, the air outlet valve (second air valve 52) is fully open, and the mixing air valve (third air valve 53) is fully open. The air in the composite regulating device of the box-type fan coil unit circulates inside the box. The air is continuously dehumidified by passing through the surface cooler assembly 4, and at the same time, it can carry away the condensation in the insulation water collection pan 7, so as to achieve the purpose of removing the condensation in the insulation water collection pan 7.

[0061] The scheme of the present application is based on the box type air disc composite regulation and control scheme, detects air temperature and humidity, executes the mode of external circulation, proportional air mixing and internal circulation, achieves the purpose of preventing and removing condensation of the heat preservation water receiving disc 7, and can regulate the operation condition of the motor under high temperature and high humidity, and improves the operation performance of the air conditioning system. The scheme of the present application adopts the air disc air mixing mode regulation and control, can prevent the condensation phenomenon of the heat preservation layer of the air disc water receiving disc (such as the heat preservation water receiving disc 7) under high humidity environment, adopts the air disc internal circulation mode regulation and control, can prevent the overheating phenomenon of the air disc motor (such as the motor 3) under high temperature environment, regulates the operation condition of the motor under high temperature and high humidity, and can effectively solve the inconsistency problem of the air disc design, maintenance and use in the global wide climate range.

[0062] In some embodiments, the step S130 of controlling the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, the opening degree when opened, and / or controlling the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water receiving disc and the temperature of the motor includes the process of controlling the return air outlet air valve, the outlet air valve and the air mixing valve according to the temperature of the motor.

[0063] The following will be described in combination with Figure 2 The following will be described in combination with

[0064] Step S210, determining whether the temperature of the motor is greater than or equal to the allowable maximum temperature of the motor; wherein the allowable maximum temperature of the motor is, for example, temperature T max .

[0065] Step S220, if it is determined that the temperature of the motor is greater than or equal to the allowable maximum temperature of the motor, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode for a first set time.

[0066] Step S230, after the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode for a first set time, determining whether the temperature of the motor is less than or equal to the normal temperature critical value of the motor; wherein the first set time is, for example, m1 minutes, and the normal temperature critical value of the motor is, for example, temperature Tmin.

[0067] Step S240, if it is determined that the temperature of the motor is less than or equal to the normal temperature threshold of the motor, return to re-control the air conditioning system to run at the target temperature and humidity for the initial set time.

[0068] Step S250, if it is determined that the temperature of the motor is greater than the normal temperature threshold of the motor, return to continue controlling the opening and closing of the return air inlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, so that the air disc runs in the preset internal circulation air supply mode.

[0069] Figure 15 The flowchart of the composite regulation and control method of the box-type air disc is shown in FIG. 1. Figure 15 As shown in FIG. 1, the composite regulation and control method of the box-type air disc comprises the following steps:

[0070] Step 1, start the unit (such as the air conditioning system where the air disc is located) and set the target parameters; specifically, set the target temperature and humidity values required indoors, such as setting the target dry-bulb temperature T 设干 , the target relative humidity ψ 设 , or the target wet-bulb temperature T 设湿 , and then execute step 2.

[0071] Step 2, run the unit for m0 minutes; the time m0 does not have to be too long, and generally 10-15 minutes is enough. Specifically, control the unit to run according to the target parameters for m0 minutes, and then execute step 3.

[0072] Step 3, detect the monitoring parameters (real-time relative humidity , the area Si of the low-temperature surface of the heat preservation water pan 7, and the real-time temperature Ti of the motor), and determine whether the real-time temperature Ti of the motor satisfies the condition Ti≥T max (maximum allowable temperature): if yes, execute step 3a, otherwise execute step 3b. For example, through infrared detection, the sum of the detection areas with a temperature lower than the threshold value is the area Si of the low-temperature surface.

[0073] Among them, the low-temperature surface refers to the surface on the outer heat preservation layer of the water pan (such as the heat preservation water pan 7) whose temperature is lower than a certain value; the temperature of the low-temperature surface can be slightly higher than the current dew point temperature. The real-time temperature Ti of the motor is the temperature of the shell surface outside the motor. The temperature T max may be 90% of the maximum temperature rise value of the motor.

[0074] Step 3a, if it is determined that the real-time temperature Ti of the motor satisfies the condition Ti≥T max (maximum allowable temperature), run in the internal circulation mode for m1 minutes, and then execute step 4. Among them, the time m1 is relatively flexible, and can be executed for 10-15 minutes.

[0075] Step 3b, if it is judged that the motor real-time temperature Ti is not greater than the temperature T (allowable maximum temperature), then step 5 is executed to further judge the case of the real-time relative humidity max .

[0076] Step 4: continuing from step 3a, further judging whether the motor real-time temperature Ti is less than the temperature Tmin (normal temperature threshold value); if it is judged that the motor real-time temperature Ti is less than the temperature Tmin, then returning to step 2; if it is judged that the motor real-time temperature Ti is not less than the temperature Tmin, then returning to step 3a.

[0077] In step 3a, this case is the initial stage of the operation of the unit, because the high ambient temperature leads to excessively high temperature rise of the motor, which affects the service life of the motor. The internal circulation mode continuously cools the air volume passing through the motor through the cooling coil assembly 4, thereby rapidly cooling the motor and protecting the motor.

[0078] In the scheme of the application, the low-temperature airflow passing through the two devices (such as the cooling coil assembly 4) is continuously sent into the wind box (i.e., the box-shaped air disc) of the internal circulation mode, which can significantly reduce the working temperature of the motor.

[0079] In some embodiments, in step S130, the opening and closing and opening degree of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and / or the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and the first process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system is further included.

[0080] The first process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system in the method of the application will be further described below with reference to the flowchart of an embodiment of the first process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system. Figure 3 Step S310, in the case where the temperature of the motor is less than the allowable maximum temperature of the motor, determining whether the indoor relative humidity of the air conditioning system is within a set humidity range; wherein the set humidity range is, for example, 40%-60%.

[0081]

[0082] ​​Step S320, if it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing outlet air valve, and the opening degree when opening, are controlled to make the air disc run in the preset proportional air mixing and air supply mode for a second set time; after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing outlet air valve, and the opening degree when opening, to make the air disc run in the preset proportional air mixing and air supply mode for a second set time, the area of the low temperature surface of the water pan is used to control the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing outlet air valve, and the opening degree when opening, and / or the rotating speed of the fan. The second set time is, for example, m2 minutes.

[0083] As shown in the figure, the composite adjustment and control method of the box type air disc further includes: Figure 15

[0084] Step 5, further judging whether the real-time relative humidity is satisfied, if yes, step 5a is executed, otherwise, step 5b is executed.

[0085] Among them, is the starting threshold of the four air mixing proportion air valves. The value corresponding to the relative humidity is set in steps, such as 40% of the value corresponding to the relative humidity, 60% of the value corresponding to the relative humidity, 80% of the value corresponding to the relative humidity, and 90% of the value corresponding to the relative humidity.

[0086] Step 5a, if it is judged that the real-time relative humidity is satisfied, step 9 is executed to further judge the air mixing execution proportion (air valve opening degree).

[0087] Step 5b, if it is judged that the real-time relative humidity is not satisfied, step 6 is executed to further judge the specific situation of the real-time relative humidity .

[0088] In the scheme of the application, by adopting the composite adjustment and control method of the box type air disc, the operating motor temperature rise and the relative humidity are monitored, when the climate condition is too severe, such as high temperature or high humidity, the internal circulation mode is triggered to start to rapidly cool the motor through the corresponding threshold condition, at the same time, the high humidity air can be rapidly cooled and dehumidified, the electrical use is adjusted to the appropriate operating condition, and the service life of the key components is greatly improved.

[0089] In some embodiments, the set humidity range includes a first interval, a second interval and a third interval in which the humidity values increase in sequence; the first interval is, for example, the second interval is, for example, and the third interval is, for example, ​

[0090] In step S320, when it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, are controlled to make the air disc run in the preset proportional air mixing and air supply mode for a second set time. See the following exemplary description.

[0091] The following Figure 4 An embodiment flowchart of the method of the application is shown in the following

[0092] Step S410, determine the interval of the indoor relative humidity of the air conditioning system within the set humidity range.

[0093] Step S420, if it is determined that the indoor relative humidity of the air conditioning system is within the first interval, the opening degree of the air mixing valve when opened is controlled to be a first set opening degree, so that the air disc runs in the preset proportional air mixing and air supply mode for a second set time; wherein the first set opening degree is, for example, air mixing opening degree K1.

[0094] Step S430, if it is determined that the indoor relative humidity of the air conditioning system is within the second interval, the opening degree of the air mixing valve when opened is controlled to be a second set opening degree, so that the air disc runs in the preset proportional air mixing and air supply mode for a second set time; wherein the second set opening degree is, for example, air mixing opening degree K2.

[0095] Step S440, if it is determined that the indoor relative humidity of the air conditioning system is within the third interval, the opening degree of the air mixing valve when opened is controlled to be a third set opening degree, so that the air disc runs in the preset proportional air mixing and air supply mode for a second set time. Wherein the third set opening degree is, for example, air mixing opening degree K3.

[0096] As Figure 15 shown, the composite regulation and control method of the box-type air disc further comprises:

[0097] Step 9, further judging the air mixing execution proportion (air valve opening degree), including:

[0098] Step 9a, running in the air mixing mode, running for m2 minutes (such as 10 to 15 minutes), and the specific running mode is as follows:

[0099] If , execute according to air mixing opening degree K1, and then execute step 9b; this is relatively low humidity, the air mixing air valve is opened according to low opening degree, and air mixing is executed. The prevention and dew condensation removal capacity is relatively low.

[0100] If then execute according to the mixed air opening K2, and then execute step 9b; this is relatively moderate humidity, mixed air damper according to the opening of the medium, the implementation of mixed air. Prevent and remove condensation ability is relatively higher.

[0101] If then execute according to the mixed air opening K3, and then execute step 9b; this is relatively high humidity, mixed air damper according to the opening of the large, the implementation of mixed air. Prevent and remove condensation ability is relatively higher. For example: can be selected K1 is 50%, K2 is 80%, K3 is 100%.

[0102] Step 9b, after running m2 minutes according to the mixed air mode, detect the area Si of the low temperature surface of the heat preservation water receiving tray 7 and the area change rate Δsi of the low temperature surface of the heat preservation water receiving tray 7, and then execute step 10. In the current mixed air dehumidification mode, the change of the condensation surface is detected, and the effect of dehumidification can be judged.

[0103] In the scheme of the application, since the composite regulation and control method of the box type air disc is adopted, the air disc mixed air mode regulation and control is realized, so that when the air disc equipment is running, the mixed air opening level can be selected according to the current humidity, and the change of the low temperature surface outside the water receiving tray (such as the heat preservation water receiving tray 7) is monitored, and the further regulation and control measures (such as upgrading regulation and control, keeping or downgrading regulation and control) are selected, so that the temperature and humidity of the air outside the low temperature surface outside the water receiving tray (such as the heat preservation water receiving tray 7) are continuously reduced in a planned manner, the formation of condensation is reduced, and the purpose of preventing the surface of the water receiving tray from condensing is achieved.

[0104] In some embodiments, the step S130 of controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controlling the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water receiving tray, and the temperature of the motor, further comprises: a second process of controlling the return air outlet air valve, the outlet air valve and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system.

[0105] The following will be described in detail with reference to the specific embodiments of the application. Figure 5 The following will be described in detail with reference to the specific embodiments of the application.

[0106] Step S510, in the case that the temperature of the motor is determined to be less than the allowed maximum temperature of the motor, and the indoor relative humidity of the air conditioning system is determined to be not within the set humidity range, it is determined whether the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range, and whether the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the set humidity range.

[0107] Step S520, if it is determined that the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the set humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, are controlled to make the air disc run in the preset internal circulation air supply mode for a third set time; after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, to make the air disc run in the preset internal circulation air supply mode for a third set time, the speed of the fan is controlled according to the area of the low temperature surface of the water pan; wherein the third set time is, for example, m3 minutes.

[0108] Step S530, if it is determined that the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, are controlled to make the air disc run in the preset external circulation air supply mode for a fourth set time; after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, to make the air disc run in the preset external circulation air supply mode for a fourth set time, the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, are controlled according to the area of the low temperature surface of the water pan, and / or the speed of the fan is controlled.

[0109] As shown in Figure 15 The composite adjustment and control method of the box type air disc further comprises:

[0110] Step 6, further judging whether the real-time relative humidity (high humidity threshold) is met: if yes, step 6a is executed, otherwise step 6b is executed.

[0111] Step 6a, if it is judged that the real-time relative humidity (High humidity threshold) After running in internal circulation mode for m3 minutes (e.g., 10 to 15 minutes), the area Si of the low-temperature surface of the insulated water receiving tray 7 and the rate of change Δsi of the area Si of the low-temperature surface of the insulated water receiving tray 7 are detected, and then step 7 is executed. The purpose of the internal circulation mode is that the airflow repeatedly passes through the surface cooler, and the temperature and humidity continue to decrease. This airflow can delay or even eliminate the formation of condensation, and at the same time, it can dry and remove condensation, reduce existing condensation, and effectively remove condensate. The detection of the low-temperature surface and its change here is to monitor the effect of decondensation removal. The advantage here is that when the humidity is very high, entering the internal circulation mode can continuously prevent condensation from forming and reduce the condensate that has already formed.

[0112] Step 6b: If the real-time relative humidity is not satisfied... (High humidity threshold) After running in external circulation mode for m4 minutes, the area Si of the low temperature surface of the heat preservation water tray 7 is detected; when the humidity is low, the possibility of condensation is very low. The control of cooling and dehumidification by the surface cooler component 4 does not need to be used to control the generation of condensation outside the water tray, but is directly vented to the room for indoor air conditioning.

[0113] In the solution of this invention, by adopting the composite adjustment and control method of box-type fan coil unit, the internal circulation mode of the fan coil unit is controlled. When the relative humidity reaches a relatively high level during operation, the fan coil unit can choose to enter the internal circulation mode and remove condensation from the critical point water receiving pan (such as the insulated water receiving pan 7) by using low temperature and low wind speed. At the same time, in high temperature environments, when the working motor temperature rises too high, the working motor can be cooled down, thereby ensuring the working conditions and extending the motor life.

[0114] In some embodiments, step S130, which controls the opening and closing of the return air vent valve, the outlet air vent valve, and the mixing air vent valve, as well as the opening degree when opening, and / or controls the speed of the fan, based on at least one of the indoor relative humidity of the air conditioning system, the area of ​​the low-temperature surface of the water collection pan, and the temperature of the motor, further includes: a first process of controlling at least one of the speeds of the return air vent valve, the outlet air vent valve, the mixing air vent valve, and the fan based on the area of ​​the low-temperature surface of the water collection pan.

[0115] The following is combined with Figure 6 The schematic diagram shown is an embodiment of the first process of controlling at least one of the rotational speeds of the return air inlet valve, the outlet air valve, the mixing air inlet valve, and the fan according to the area of ​​the low-temperature surface of the water receiving pan in the method of the present invention. The specific process of the first process of controlling at least one of the rotational speeds of the return air inlet valve, the outlet air valve, the mixing air inlet valve, and the fan according to the area of ​​the low-temperature surface of the water receiving pan in step S130 is further explained, including steps S610 to S650.

[0116] Step S610, in the case of determining that the temperature of the motor is less than the allowed maximum temperature of the motor, and determining that the indoor relative humidity of the air conditioning system is within the set humidity range, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opening, so that the air disc runs in the preset proportional mixed air supply mode for a second set time, and then determining the area change rate of the low temperature surface of the water pan according to the area of the low temperature surface of the water pan, which is recorded as the area change rate of the low temperature surface of the water pan; wherein the area change rate of the low temperature surface of the water pan is the change rate of the area Si of the low temperature surface of the real-time heat preservation water pan 7. The detection period can be one detection period or several detection periods.

[0117] Step S620, determining whether the area of the low temperature surface of the water pan is less than the first set area; wherein the first set area is Smax(threshold).

[0118] Step S630, if it is determined that the area of the low temperature surface of the water pan is greater than or equal to the first set area, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opening, so that the air disc runs in the preset internal circulation air supply mode, and controlling the fan to run at the preset lowest gear for a first set time; after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opening, so that the air disc runs in the preset internal circulation air supply mode, and controlling the fan to run at the preset lowest gear for a first set time, controlling the speed of the fan according to the area of the low temperature surface of the water pan; wherein the first set time is m1 minutes.

[0119] Step S640, if it is determined that the area of the low temperature surface of the water pan is less than the first set area, determining whether the area change rate of the low temperature surface of the water pan is less than or equal to the first set change rate; wherein the first set change rate is c.

[0120] Step S650, if it is determined that the area change rate of the low temperature surface of the water pan is less than or equal to the first set change rate, controlling the air conditioning system to maintain the current running state for a second set time, and then returning to re-control the air conditioning system to run at the target temperature and humidity for an initial set time.

[0121] As shown in Figure 15 The composite adjustment control method of the box type air disc further comprises:

[0122] Step 10, further determining whether the real-time low temperature surface area Si is less than Smax(threshold): if yes, executing step 10a, otherwise executing step 10b. For example, Smax is 20% of the total area of the monitoring area.

[0123] Step 10a, if it is judged that the area Si of the real-time low-temperature surface satisfies Si < Smax (threshold value), then step 11 is performed to further judge the change rate of the low-temperature surface.

[0124] Step 10b, if it is judged that the area Si of the real-time low-temperature surface does not satisfy Si < Smax (threshold value), then the inner loop mode is run for m1 minutes, the area Si of the low-temperature surface of the heat preservation water receiving tray 7 and the change rate of the area Si of the low-temperature surface of the heat preservation water receiving tray 7 are detected, and then step 7 is performed; the current low-temperature surface is still large (not less than Smax (threshold value)), and the inner loop air mixing mode needs to be continuously performed to perform condensation prevention treatment.

[0125] Step 11, after step 10a, it is further judged whether the real-time low-temperature surface change rate satisfies si ≤ c (threshold value): if yes, step 11a is performed, otherwise step 11b is performed. For example, c is 5%.

[0126] Step 11a, if it is judged that the real-time low-temperature surface change rate satisfies si ≤ c (threshold value), then the current state is maintained and run for m2 minutes, and then step 2 is returned; the current low-temperature surface change is relatively stable, the condensation prevention and removal execution scheme is reasonable, and therefore continuous running is performed.

[0127] Step 11b, if it is judged that the real-time low-temperature surface change rate does not satisfy si ≤ c (threshold value), then step 12 is performed to further judge the change of the area Si of the low-temperature surface of the heat preservation water receiving tray 7.

[0128] In the scheme of the present application, by adopting the composite adjustment and control method of the box type air disc, the relative humidity of the return air is monitored, the pre-condensation area of the outer surface of the water receiving tray part is synchronously monitored, when the air relative humidity enters the threshold value, the matched staged air mixing ratio is selected according to the subdivision threshold value to perform staged regulation and control on the condensation area of the heat preservation water receiving tray 7, and then the regulation and control effect (i.e. the low-temperature area change) is followed up to determine the further adjustment strategy (such as upgrading or downgrading regulation and control or maintaining), so that the condensation generation condition is regulated and controlled through the air mixing amount, and the condensation on the surface of the water receiving tray is reduced or avoided.

[0129] In some embodiments, in step S130, the opening and closing of the return air outlet air valve, the outlet air valve, the air mixing outlet air valve and the opening degree when opening, and / or the control of the rotating speed of the fan are controlled according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water receiving tray, and the temperature of the motor, and further comprising: a second process of controlling at least one of the return air outlet air valve, the outlet air valve, the air mixing outlet air valve and the rotating speed of the fan according to the area of the low-temperature surface of the water receiving tray.

[0130] The following will be described in combination with Figure 7Fig. 7 shows a flowchart of an embodiment of the second process of controlling at least one of the rotation speed of the return air outlet air valve, the outlet air outlet air valve, the mixed air outlet air valve and the fan according to the area of the low-temperature surface of the water receiving tray in the method of the present application, which further illustrates the specific process of the second process of controlling at least one of the rotation speed of the return air outlet air valve, the outlet air outlet air valve, the mixed air outlet air valve and the fan according to the area of the low-temperature surface of the water receiving tray in step S130. The second process comprises steps S710-S740.

[0131] In step S710, the area of the low-temperature surface of the water receiving tray obtained in the current detection period is recorded as the current value of the area of the low-temperature surface of the water receiving tray, and the area of the low-temperature surface of the water receiving tray obtained in the previous detection period is recorded as the previous value of the area of the low-temperature surface of the water receiving tray. The previous detection period is the previous period of the current detection period.

[0132] In step S720, in the case where it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor and that the indoor relative humidity of the air conditioning system is within the set humidity range, after the opening and closing of the return air outlet air valve, the outlet air outlet air valve and the mixed air outlet air valve and the opening degree of the opening are controlled to make the air disc run in the preset proportional mixed air supply mode for the second set time, and in the case where it is determined that the area of the low-temperature surface of the water receiving tray is less than the first set area, if it is determined that the area change rate of the low-temperature surface of the water receiving tray is greater than the first set change rate, it is determined whether the current value of the area of the low-temperature surface of the water receiving tray is less than the previous value of the area of the low-temperature surface of the water receiving tray.

[0133] In step S730, if it is determined that the current value of the area of the low-temperature surface of the water receiving tray is less than the previous value of the area of the low-temperature surface of the water receiving tray, the air level of the fan is controlled to run at a preset level for a second set time, and then the air conditioning system is re-controlled to run at the target temperature and humidity for an initial set time; or the opening degree of the mixed air outlet air valve is controlled to decrease by a preset opening degree, and then the air disc is made to run in the preset proportional mixed air supply mode for a second set time, and then the air conditioning system is re-controlled to run at the target temperature and humidity for an initial set time; wherein the preset level is, for example, level 1, and the preset opening degree is, for example, level 1 mixed air opening degree K.

[0134] In step S740, if it is determined that the current value of the area of the low-temperature surface of the water receiving tray is greater than or equal to the previous value of the area of the low-temperature surface of the water receiving tray, the air level of the fan is controlled to increase by a preset level for a second set time, and then the air conditioning system is re-controlled to run at the target temperature and humidity for an initial set time; or the opening degree of the mixed air outlet air valve is controlled to increase by a preset opening degree, and then the air disc is made to run in the preset proportional mixed air supply mode for a second set time, and then the air conditioning system is re-controlled to run at the target temperature and humidity for an initial set time.

[0135] As Figure 15 shown, the composite adjustment control method of the box type air disc further comprises:

[0136] Step 12, after step 11b, it is judged whether the current low temperature surface area Si meets S i-1 : if yes, step 12a is executed, otherwise step 12b is executed. Wherein, S i-1 is the low temperature surface area Si detected in the last detection cycle.

[0137] Step 12a, if it is judged that the current low temperature surface area Si meets S i-1 , reduce 1 level fan gear or reduce 1 level mixed air opening K operation m2 minutes, and then return to step 2; The current low temperature surface is much smaller than the previous condensation surface, and the execution of the prevention and condensation removal execution scheme is unreasonable (too large), so the excessive capacity is reduced by reducing the fan gear, so as to adjust the execution strategy.

[0138] Step 12b, if it is judged that the current low temperature surface area Si does not meet S i-1 , then increase 1 level fan gear or increase 1 level mixed air opening K operation m2 minutes, and then return to step 2; The current low temperature surface is much larger than the previous condensation surface, and the execution of the prevention and condensation removal execution scheme is unreasonable (too small), so the capacity is improved by increasing the fan gear, so as to adjust the execution strategy.

[0139] In the scheme of the application, the composite adjustment control method of the box type air disc is adopted, in the process of air disc operation, the real-time air humidity is detected, and then compared with the actual situation, classified control, through the box type inner circulation, outer circulation, proportional mixed air and self-regulation strategy, so as to meet the water pan condensation control and management, electrical temperature rise control and indoor air conditioning in different temperature and humidity conditions, and take into account the comfort demand and equipment operation environment demand.

[0140] In some embodiments, in step S130, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opening, and / or the control of the rotating speed of the fan, further comprising: a third process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air valve and the rotating speed of the fan according to the area of the low temperature surface of the water pan.

[0141] The following will be combined Figure 8Fig. 8 shows a flowchart of an embodiment of the third process of controlling at least one of the rotation speed of the return air outlet damper, the rotation speed of the outlet air outlet damper, the rotation speed of the mixed air outlet damper and the rotation speed of the fan according to the area of the low-temperature surface of the water receiving tray in the method of the present application, further illustrating the specific process of the third process of controlling at least one of the rotation speed of the return air outlet damper, the rotation speed of the outlet air outlet damper, the rotation speed of the mixed air outlet damper and the rotation speed of the fan according to the area of the low-temperature surface of the water receiving tray in step S130, including steps S810 to S860.

[0142] In step S810, after controlling the opening and closing of the return air outlet damper, the outlet air outlet damper and the mixed air outlet damper, and the opening degree when opened, to make the air disc run in the preset internal circulation air supply mode for the third preset time, or after controlling the opening and closing of the return air outlet damper, the outlet air outlet damper and the mixed air outlet damper, and the opening degree when opened, to make the air disc run in the preset internal circulation air supply mode and control the fan to run at the preset lowest gear for the first preset time, the rate of change of the area of the low-temperature surface of the water receiving tray is determined according to the area of the low-temperature surface of the water receiving tray, which is recorded as the area change rate of the low-temperature surface of the water receiving tray; wherein the area change rate of the low-temperature surface of the water receiving tray is the rate of change of the area Si of the low-temperature surface of the real-time heat preservation water receiving tray 7.

[0143] In step S820, it is determined whether the area change rate of the low-temperature surface of the water receiving tray is less than or equal to the second preset change rate; wherein the second preset change rate is, for example, lmin.

[0144] In step S830, if it is determined that the area change rate of the low-temperature surface of the water receiving tray is less than or equal to the second preset change rate, the air gear of the fan is controlled to be raised by a preset gear for a fourth preset time, and then it is returned to re-determine whether the area change rate of the low-temperature surface of the water receiving tray is less than or equal to the second preset change rate.

[0145] In step S840, if it is determined that the area change rate of the low-temperature surface of the water receiving tray is greater than the second preset change rate, it is determined whether the area of the low-temperature surface of the water receiving tray is less than the second preset area; wherein the second preset area is, for example, Smin(threshold value).

[0146] In step S850, if it is determined that the area of the low-temperature surface of the water receiving tray is less than the second preset area, it is returned to re-control the air conditioning system to run at the target temperature and humidity for the initial preset time.

[0147] In step S860, if it is determined that the area of the low-temperature surface of the water receiving tray is greater than or equal to the second preset area, it is returned to continue controlling the opening and closing of the return air outlet damper, the outlet air outlet damper and the mixed air outlet damper, and the opening degree when opened, to make the air disc run in the preset internal circulation air supply mode for the third preset time.

[0148] As Figure 15 shown, the composite adjustment control method of the box type air disc further comprises:

[0149] Step 7, after step 6a and step 6b, further judge whether the change rate of the area Si of the low temperature surface of the real-time heat preservation water receiving disc 7, i.e. the low temperature surface change rate Δsi, satisfies the condition of Δsi≤Lmin (threshold value) : if yes, execute step 7a, otherwise execute step 7b. For example, Lmin is 5%.

[0150] Step 7a, if it is judged that the change rate of the area Si of the low temperature surface of the real-time heat preservation water receiving disc 7, i.e. the low temperature surface change rate Δsi, satisfies the condition of Δsi≤Lmin (threshold value), then increase the fan gear by 1 level and run for m4 minutes, and then return to step 7. Under the current internal circulation state, the condensation surface reduces slowly, and increasing the wind gear by 1 level can accelerate the reduction and elimination of condensation.

[0151] Step 7b, if it is judged that the change rate of the area Si of the low temperature surface of the real-time heat preservation water receiving disc 7, i.e. the low temperature surface change rate Δsi, does not satisfy the condition of Δsi≤Lmin (threshold value), then execute step 8 to further judge the area Si of the low temperature surface of the real-time heat preservation water receiving disc 7.

[0152] Step 8, after step 7b, further judge whether the area Si of the real-time low temperature surface satisfies the condition of Si<Smin (threshold value) : if yes, execute step 8a, otherwise execute step 8b. For example, Smin is 2% of the total area of the monitored region.

[0153] Step 8a, if it is judged that the area Si of the real-time low temperature surface satisfies the condition of Si<Smin (threshold value), then return to step 2.

[0154] Step 8b, if it is judged that the area Si of the real-time low temperature surface does not satisfy the condition of Si<Smin (threshold value), then return to step 6a.

[0155] In the scheme of the present application, by adopting the composite adjustment control method of the box type air disc, the relative humidity of the return air is monitored, when the relative humidity of the return air is too high (i.e. reaches the high humidity threshold value), the internal circulation operation mode is started, through the circulating air effect of continuous cooling and dehumidification, the condensation on the outer surface of the water receiving disc is gradually removed, and then by detecting the change of the condensation, the further adjustment strategy (gear increase or gear decrease) is determined, and further when the condensation on the water receiving disc reaches the exit threshold value, the mixed air or external circulation mode can be entered for regulation and control, so as to realize the regulation and control of the condensation generated by the unit operation under different relative humidity conditions.

[0156] In some embodiments, the step S130 of controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, the opening degree when opened, and / or controlling the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan, and the temperature of the motor further comprises a fourth process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air valve and the rotating speed of the fan according to the area of the low temperature surface of the water pan.

[0157] The fourth process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air valve and the rotating speed of the fan according to the area of the low temperature surface of the water pan in the method of the present application will be further illustrated below with reference to the flowchart of an embodiment of the fourth process. Figure 9 The fourth process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air valve and the rotating speed of the fan according to the area of the low temperature surface of the water pan in the method of the present application will be further illustrated below with reference to the flowchart of an embodiment of the fourth process.

[0158] In step S910, after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened to make the air pan run the preset external circulation air supply mode for the fourth set time, it is determined whether the area of the low temperature surface of the water pan is less than the first set area; wherein the first set area is Smax(threshold value).

[0159] In step S920, if it is determined that the area of the low temperature surface of the water pan is less than the first set area, the air conditioning system is returned to be controlled to run at the target temperature and humidity for the initial set time.

[0160] In step S930, if it is determined that the area of the low temperature surface of the water pan is greater than or equal to the first set area, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened are continued to be controlled to make the air pan run the preset internal circulation air supply mode, and the fan is controlled to run at the preset lowest gear for the first set time.

[0161] As shown in FIG. 6b, the composite regulation and control method of the box-type air pan further comprises: Figure 15 As shown in FIG. 6b, the composite regulation and control method of the box-type air pan further comprises:

[0162] In step 6b, if it is determined that the real-time relative humidity (high humidity threshold), then the area Si of the low temperature surface of the heat preservation water receiving tray 7 is detected after the air conditioner runs in the outer circulation mode for m4 minutes, and then it is judged whether the area Si of the real time low temperature surface satisfies the threshold value Smax (threshold value): if yes, it returns to step 2, otherwise, the area Si of the low temperature surface of the heat preservation water receiving tray 7 and the change rate Δsi of the area Si of the low temperature surface of the heat preservation water receiving tray 7 are detected after the air conditioner runs in the inner circulation mode and in the low gear for m1 minutes, and then step 7 is executed; when the humidity is low, the possibility of producing condensate water is low, and the control of the temperature reduction and dehumidification through the air cooler assembly 4 does not have to be divided into a part for controlling the generation of the condensate water of the water receiving tray and directly all for the indoor air conditioning.

[0163] In the scheme of the present application, the composite adjustment control method of the box type air disc in the air conditioning system: through the box type inner circulation, outer circulation, proportional air mixing and autonomous adjustment strategy, so as to meet the condensate water control and management of the water receiving tray, the electrical temperature rise control and the indoor air conditioning in different temperature and humidity conditions.

[0164] The technical scheme of the embodiment is adopted, through the air disc peripheral setting of the closed shell (such as the heat preservation shell 1) to form the box type air disc for the air disc of the air conditioning system, the return air inlet air valve (such as the first air valve 51) is set at the return air inlet of the air disc, the outlet air valve (such as the second air valve 52) is set at the outlet air inlet of the air disc, and the air mixing valve (such as the third air valve 53) is set at the air mixing inlet of the air disc; after the air conditioning system is started and runs for a period of time (such as time m0) according to the preset parameters, the opening and closing of the return air inlet air valve, the outlet air valve and the air mixing valve, and the opening degree ratio when opening are controlled according to the relative humidity (such as the real time relative humidity ), the area (such as the area Si of the low temperature surface of the heat preservation water receiving tray 7) of the low temperature surface of the water receiving tray (such as the heat preservation water receiving tray 7) in the air disc, and the temperature (such as the real time temperature Ti) of the motor of the fan in the air disc, at least one of the working modes of the outer circulation mode, the proportional air mixing mode and the inner circulation mode is executed, and the gear of the fan is controlled; thereby, according to the relative humidity of the indoor environment, the area of the low temperature surface of the water receiving tray and the temperature of the motor, the air disc is controlled to run in at least one of the outer circulation mode, the proportional air mixing mode and the inner circulation mode, and the gear of the fan is controlled, the anti-condensation control of the water receiving tray is realized, and the running condition of the motor is adjusted to adjust the consistency difference of the air disc in different regions, and the running performance of the air conditioning system is improved.

[0165] According to the embodiment of the present application, a control device of the air disc corresponding to the control method of the air conditioning system is also provided. Referring to Figure 10The diagram shows a structural schematic of an embodiment of the device of the present invention. The air conditioning system has a fan coil unit, and a closed housing is provided around the fan coil unit. The fan coil unit has a fan, a water collection tray, a motor, a return air inlet, an air outlet, and a mixing air inlet. A return air inlet valve is provided at the return air inlet, an air outlet valve is provided at the air outlet, and a mixing air inlet valve is provided at the mixing air inlet. The closed housing is as follows... Figure 11 The insulation housing 1 shown, the fan as Figure 11 The fan 2 shown, the water receiving tray as Figure 11 The insulated water receiving tray 7 shown, the motor as... Figure 11 The motor 3 shown, the return air vent as Figure 11 The return air inlet 9 is shown, and the air outlet is as follows: Figure 11 The air outlet 6 shown, the mixing air outlet as Figure 11 The mixing air inlet 10 shown, the return air outlet valve (such as the first air valve 51), the air outlet valve (such as the second air valve 52), and the mixing air outlet valve (such as the third air valve 53) are shown. Figure 11 This is a schematic diagram of the composite adjustment device for a box-type fan coil unit. Figure 11 The composite adjustment device of the box-type fan coil unit shown includes: a conventional fan coil unit, an insulation shell 1, a return air inlet (i.e., return air inlet 9) air valve (first air valve 51), an air outlet 6 air valve (second air valve 52), a mixing air inlet (i.e., mixing air inlet 10) air valve (third air valve 53), a return air inlet temperature and humidity monitoring device 81, a motor temperature monitoring device 82, and a water receiving tray temperature control surface monitoring device 83. Figure 11 Compared to conventional fan coil units, this design adds an insulated shell 1, internal air valves (such as the first air valve 51, the second air valve 52, and the third air valve 53), and a water collection tray temperature control surface monitoring device 83. A conventional fan coil unit includes a fan 2, a motor 3, a surface cooler assembly 4, and an insulated water collection tray 7. The insulated water collection tray 7 is a standard water collection tray, consisting of a 6mm-9mm thick insulating sponge, preferably an 8mm thick insulating sponge. The fan coil unit (i.e., the conventional fan coil unit) and the water collection tray are standard functions. The insulated shell 1 seals the fan coil unit and provides insulation. The first air valve 51, the second air valve 52, and the third air valve 53 regulate the airflow at the return air inlet, the outlet air inlet, and the mixing air inlet, respectively. The return air inlet temperature and humidity monitoring device 81 detects the relative humidity of the return air, the motor temperature monitoring device 82 detects the motor temperature rise, and the water collection tray temperature control surface monitoring device 83 is responsible for detecting the low-temperature area, condensation area, and rate of change of the insulated water collection tray 7. In the solution of the present invention, such as Figure 10 As shown, the control device of the air conditioning system includes: an acquisition unit 102 and a control unit 104.

[0166] The control unit 104 is configured to control the air conditioning system to run at a target temperature and humidity for an initial set time after the air conditioning system is started. 设干 or a target wet-bulb temperature T 设湿 , and a target relative humidity ψ 设 . The specific functions and processes of the control unit 104 are described in step S110.

[0167] The acquisition unit 102 is configured to acquire the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor according to a set detection period after the air conditioning system is controlled to run at the target temperature and humidity for the initial set time, wherein the initial set time is, for example, m0 minutes, the indoor relative humidity of the air conditioning system is, for example, the real-time relative humidity The area of the low-temperature surface of the water pan is, for example, the area Si of the low-temperature surface of the heat-insulating water pan 7, and the temperature of the motor is, for example, the real-time temperature Ti of the motor. The specific functions and processes of the acquisition unit 102 are described in step S120.

[0168] The control unit 104 is further configured to control the opening and closing of the return-air outlet air valve, the outlet air valve, and the mixed-air outlet air valve, the opening degree when opened, and / or the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, so as to achieve the condensation control of the water pan and adjust the operating condition of the motor to adjust the consistency difference of the water pan in different regions and improve the operating performance of the air conditioning system. The specific functions and processes of the control unit 104 are also described in step S130.

[0169] The scheme of the present application is based on the box-type air disc composite regulation and control scheme, detects the air temperature and humidity, controls the opening and closing of the return-air outlet air valve, the outlet air valve, and the mixed-air outlet air valve, the opening degree when opened, and / or the rotating speed of the fan, achieves the purpose of preventing and removing the condensation of the heat-insulating water pan 7, and can adjust the operating condition of the motor under high temperature and high humidity, prevent the condensation phenomenon of the heat-insulating layer of the air disc water pan (such as the heat-insulating water pan 7) under high humidity environment, prevent the overheating phenomenon of the air disc motor (such as the motor 3) under high temperature environment, adjust the operating condition of the motor under high temperature and high humidity, and effectively solve the inconsistency problem of the air disc design, maintenance, and use in the global wide-range climate.

[0170] In some embodiments, when the return air outlet valve is fully open, the outlet air valve is fully open, and the mixed air outlet valve is closed, the air disc operates in a preset external circulation air supply mode; the preset external circulation air supply mode is, for example, an external circulation mode of the air disc. When the return air outlet valve is fully open, the outlet air valve is fully open, and the mixed air outlet valve is opened according to a required mixed air proportion, the air disc operates in a preset proportional mixed air supply mode; the preset proportional mixed air supply mode is, for example, a proportional mixed air mode of the air disc. When the return air outlet valve is closed, the outlet air valve is fully open, and the mixed air outlet valve is fully open, the air disc operates in a preset internal circulation air supply mode; the preset internal circulation air supply mode is, for example, an internal circulation mode of the air disc.

[0171] Figure 12 The figure is a flow diagram of an external circulation mode of the composite regulating device of the box-type air disc. When the relative humidity of indoor air is low and it is difficult to form condensation, that is, when the internal circulation starting threshold is reached, the return air outlet valve (the first air valve 51) is fully open, the outlet air valve (the second air valve 52) is fully open, and the mixed air outlet valve (the third air valve 53) is closed. The composite regulating device of the box-type air disc functions in the same way as a conventional air disc, that is, the return air is processed in temperature and humidity by the surface cooler assembly 4 and blown to the indoor to achieve the purpose of indoor temperature and humidity regulation.

[0172] Figure 13 The figure is a flow diagram of a mixed air mode of the composite regulating device of the box-type air disc. When the relative humidity of indoor air is between high humidity and low humidity, that is, when the mixed air starting threshold is reached, the return air outlet valve (the first air valve 51) is fully open, the outlet air valve (the second air valve 52) is fully open, and the mixed air outlet valve (the third air valve 53) is opened according to the opening degree of the required mixed air proportion. The composite regulating device of the box-type air disc can circulate part of the low-temperature and low-humidity air processed in temperature and humidity by the surface cooler assembly 4 to the return air outlet through the heat preservation water receiving tray 7, so as to achieve the purpose of regulating and reducing the formation of condensation; at the same time, part of the air is blown to the indoor to achieve the purpose of indoor temperature and humidity regulation.

[0173] In the scheme of the present application, the mixed air mode can select the corresponding mixed air proportion and mixed air opening degree according to the current relative humidity of the air, so as to achieve fine hierarchical regulation and control of the condensation area of the heat preservation water receiving tray 7, and the regulation effect is more reasonable.

[0174] Figure 14For the inner circulation mode flow schematic diagram of the composite regulating device of the box type air disc, when the indoor air relative humidity is very high and condensation is easily formed, that is, the inner circulation starting threshold is reached, the return air outlet air valve (the first air valve 51) is closed, the outlet air valve (the second air valve 52) is fully opened, and the mixed air valve (the third air valve 53) is fully opened. The air of the composite regulating device of the box type air disc is circulated in the box body, continuously dehumidified through the surface cooler assembly 4, and condensation of the heat preservation water receiving tray 7 can be removed, so that the purpose of removing the condensation of the heat preservation water receiving tray 7 is achieved.

[0175] The scheme of the present application is based on the composite regulation and control scheme of the box type air disc, detects the air temperature and humidity, and executes the outer circulation, proportional air mixing and inner circulation mode, so as to prevent and remove the condensation of the heat preservation water receiving tray 7, and adjust the operation condition of the motor under high temperature and high humidity, thereby improving the operation performance of the air conditioning system. The scheme of the present application adopts the air disc air mixing mode regulation and control, can prevent the condensation phenomenon of the heat preservation layer of the air disc water receiving tray (such as the heat preservation water receiving tray 7) in a high humidity environment, adopts the air disc inner circulation mode regulation and control, can prevent the overheating phenomenon of the air disc motor (such as the motor 3) in a high temperature environment, adjusts the operation condition of the motor under high temperature and high humidity, and can effectively solve the inconsistency problem of the air disc design, maintenance and use in the global wide climate range.

[0176] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water receiving tray, and the temperature of the motor, including: controlling the return air outlet air valve, the outlet air valve and the mixed air valve according to the temperature of the motor, specifically as follows:

[0177] The control unit 104 is specifically further configured to determine whether the temperature of the motor is greater than or equal to the allowable maximum temperature of the motor; wherein the allowable maximum temperature of the motor is, for example, temperature T max The specific functions and processes of the control unit 104 also refer to step S210.

[0178] The control unit 104 is specifically further configured to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air valve, and the opening degree when opened, so that the air disc operates in a preset inner circulation air supply mode for a first set time, if it is determined that the temperature of the motor is greater than or equal to the allowable maximum temperature of the motor. The specific functions and processes of the control unit 104 also refer to step S220.

[0179] The control unit 104 is further configured to determine whether the temperature of the motor is less than or equal to the normal temperature threshold of the motor after the air disc operates in the preset internal circulation air supply mode for a first set time, such as m1 minutes, and the normal temperature threshold of the motor is, for example, temperature Tmin. The specific functions and processes of the control unit 104 are also described in step S230.

[0180] The control unit 104 is further configured to return to control the air conditioning system to operate at the target temperature and humidity for an initial set time if it is determined that the temperature of the motor is less than or equal to the normal temperature threshold of the motor. The specific functions and processes of the control unit 104 are also described in step S240.

[0181] The control unit 104 is further configured to continue to control the opening and closing of the return air inlet damper, the outlet air damper and the mixed air damper, and the opening degree when opened, so that the air disc operates in the preset internal circulation air supply mode if it is determined that the temperature of the motor is greater than the normal temperature threshold of the motor. The specific functions and processes of the control unit 104 are also described in step S250.

[0182] Figure 15 The flowchart of the composite regulation and control method of the box-type air disc is shown in FIG. 1. Figure 15 The composite regulation and control method of the box-type air disc includes the following steps.

[0183] Step 1: Start the unit (such as the air disc of the air conditioning system), and set the target parameters; specifically, set the target temperature and humidity of the indoor demand, such as setting the target dry bulb temperature T 设干 , the target relative humidity ψ 设 , or the target wet bulb temperature T 设湿 , and then execute step 2.

[0184] Step 2: The unit operates for m0 minutes; the time m0 does not have to be too long, and generally 10-15 minutes are sufficient. Specifically, the unit is controlled to operate according to the target parameters for m0 minutes, and then step 3 is executed.

[0185] Step 3: Detect the monitoring parameters (real-time relative humidity , the area Si of the low-temperature surface of the heat preservation water pan 7, and the real-time temperature Ti of the motor), and determine whether the real-time temperature Ti of the motor is greater than or equal to the maximum allowable temperature T max ; if yes, execute step 3a, otherwise execute step 3b.

[0186] The low-temperature surface refers to a surface on the outer side of the heat preservation layer of the water receiving tray (e.g., the heat preservation water receiving tray 7) whose temperature is lower than a certain value. The temperature of the low-temperature surface can be slightly higher than the current dew point temperature. The real-time temperature T of the motor refers to the temperature of the surface of the shell outside the motor. max The temperature T can be 90% of the maximum temperature rise value of the motor.

[0187] Step 3a: If it is determined that the real-time temperature T of the motor is greater than or equal to the temperature T (allowed maximum temperature), the motor is operated in the internal circulation mode for m1 minutes, and then step 4 is performed. The time m1 is relatively flexible and can be performed for 10-15 minutes. max

[0188] Step 3b: If it is determined that the real-time temperature T of the motor is less than the temperature T (allowed maximum temperature), step 5 is performed to further determine the real-time relative humidity max

[0189] Step 4: Following step 3a, it is further determined whether the real-time temperature T of the motor is less than or equal to the temperature Tmin (normal temperature threshold value). If it is determined that the real-time temperature T of the motor is less than or equal to the temperature Tmin, the process returns to step 2. If it is determined that the real-time temperature T of the motor is greater than the temperature Tmin, the process returns to step 3a.

[0190] In step 3a, this situation is the initial stage of operation of the unit. Because the ambient temperature is high, the temperature of the motor rises too high, which affects the service life of the motor. The internal circulation mode continuously cools the air volume passing through the motor through the air cooler assembly 4, thereby rapidly cooling the motor and protecting the motor.

[0191] In the scheme of the present application, the air bellow (i.e., the box-shaped air disc) of the internal circulation mode continuously sends in the low-temperature airflow cooled by the two devices (e.g., the air cooler assembly 4), which can significantly reduce the operating temperature of the motor.

[0192] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet air valve, the outlet air outlet air valve, and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the air fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water receiving tray, and the temperature of the motor. Further comprising: a first process of controlling the return air outlet air valve, the outlet air outlet air valve, and the mixed air outlet air valve according to the indoor relative humidity of the air conditioning system, specifically as follows:

[0193] The control unit 104 is specifically configured to determine whether the indoor relative humidity of the air conditioning system is within a set humidity range in the case that the temperature of the motor is less than the allowed maximum temperature of the motor; wherein the set humidity range is, for example, ​​​The specific functions and processes of the control unit 104 are also described in step S310.

[0194] The control unit 104 is specifically configured to, if it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range, control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc operates in a preset proportional mixed air supply mode for a second set time; after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc operates in a preset proportional mixed air supply mode for a second set time, according to the area of the low temperature surface of the water pan, control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or control the rotating speed of the fan. The second set time is, for example, m2 minutes. The specific functions and processes of the control unit 104 are also described in step S320.

[0195] As shown in Figure 15 , the composite adjustment and control method of the box type air disc further comprises:

[0196] Step 5, further judging whether the real-time relative humidity satisfies the condition or not. If yes, step 5a is executed, otherwise step 5b is executed.

[0197] Among them, is the starting threshold of the four mixed air proportion air valves. The value corresponding to the relative humidity is set in steps, such as 40% of the value corresponding to the relative humidity, 60% of the value corresponding to the relative humidity, 80% of the value corresponding to the relative humidity, and 90% of the value corresponding to the relative humidity.

[0198] Step 5a, if it is judged that the real-time relative humidity satisfies the condition, step 9 is executed to further judge the mixed air execution proportion (air valve opening degree).

[0199] Step 5b, if it is judged that the real-time relative humidity does not satisfy the condition, step 6 is executed to further judge the specific condition of the real-time relative humidity .

[0200] In the scheme of the application, by adopting the composite adjustment and control method of the box type air disc, the operating motor temperature rise and the relative humidity are monitored, when the climate condition is too severe, such as high temperature or high humidity, the internal circulation mode is triggered to start to rapidly cool the motor through the corresponding threshold condition, at the same time, the high humidity air can be rapidly cooled and dehumidified, the electrical use is adjusted to the appropriate operating condition, and the service life of the key components is greatly improved.

[0201] In some embodiments, the humidity range is set, including: a first interval, a second interval and a third interval in which the humidity value increases sequentially; the first interval is, for example The second interval is, for example The third interval is, for example

[0202] The control unit 104 controls the opening and closing of the return air outlet air valve, the outlet air valve and the air mixing valve, and the opening degree when opened, so that the air disc operates in the preset proportional air mixing and air supply mode for a second set time, in the case that the indoor relative humidity of the air conditioning system is determined to be within the set humidity range.

[0203] The control unit 104 is specifically further configured to determine the interval to which the indoor relative humidity of the air conditioning system belongs when the indoor relative humidity is within the set humidity range. The specific functions and processes of the control unit 104 are also referred to step S410.

[0204] The control unit 104 is specifically further configured to control the opening degree of the air mixing valve when opened to be a first set opening degree, so that the air disc operates in the preset proportional air mixing and air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the first interval; wherein the first set opening degree is, for example, the air mixing opening degree K1. The specific functions and processes of the control unit 104 are also referred to step S420.

[0205] The control unit 104 is specifically further configured to control the opening degree of the air mixing valve when opened to be a second set opening degree, so that the air disc operates in the preset proportional air mixing and air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the second interval; wherein the second set opening degree is, for example, the air mixing opening degree K2. The specific functions and processes of the control unit 104 are also referred to step S430.

[0206] The control unit 104 is specifically further configured to control the opening degree of the air mixing valve when opened to be a third set opening degree, so that the air disc operates in the preset proportional air mixing and air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the third interval; wherein the third set opening degree is, for example, the air mixing opening degree K3. The specific functions and processes of the control unit 104 are also referred to step S440.

[0207] As shown in Figure 15 The composite adjustment and control method of the box-type air disc further comprises:

[0208] Step 9, further judging the air mixing execution ratio (air valve opening degree) according to step 5a, including;

[0209] Step 9a, operating according to the air mixing mode, operating for m2 minutes, and the specific operation mode is as follows:

[0210] If then execute according to the mixing air opening K1, and then execute step 9b; this is relatively low humidity, the mixing air damper is opened according to the low opening, and the mixing air is executed. The prevention and dew removal ability is relatively low.

[0211] If then execute according to the mixing air opening K2, and then execute step 9b; this is relatively moderate humidity, the mixing air damper is opened according to the medium opening, and the mixing air is executed. The prevention and dew removal ability is relatively higher.

[0212] If then execute according to the mixing air opening K3, and then execute step 9b; this is relatively high humidity, the mixing air damper is opened according to the large opening, and the mixing air is executed. The prevention and dew removal ability is relatively higher.

[0213] Step 9b, after running m2 minutes according to the mixing air mode, detect the area Si of the low temperature surface of the heat preservation water receiving tray 7 and the area change rate △si of the low temperature surface of the heat preservation water receiving tray 7, and then execute step 10. In the current mixing air dew removal mode, the change of the dew surface is detected, and the effect of dew removal can be judged.

[0214] In the scheme of the application, since the composite regulation and control method of the box type air disc is adopted, the air disc mixing air mode regulation and control is realized, so that when the air disc equipment is running, the mixing air opening level can be selected according to the current humidity, and through monitoring the change of the low temperature surface outside the water receiving tray (such as the heat preservation water receiving tray 7), the further regulation and control measures (such as upgrading regulation and control, keeping or downgrading regulation and control) are selected, so that the temperature and humidity of the air outside the low temperature surface outside the water receiving tray (such as the heat preservation water receiving tray 7) are continuously reduced in a planned manner, the dew formation is reduced, and the purpose of eliminating the dew on the surface of the water receiving tray is achieved.

[0215] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet air valve, the outlet air valve and the mixing air valve, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water receiving tray, and the temperature of the motor, and further comprises: a second process of controlling the return air outlet air valve, the outlet air valve and the mixing air valve according to the indoor relative humidity of the air conditioning system, specifically as follows:

[0216] The control unit 104 is further configured to, when determining that the temperature of the motor is less than the maximum allowable temperature of the motor and that the indoor relative humidity of the air conditioning system is not within the set humidity range, determine whether the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range, and determine whether the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the set humidity range. The specific functions and processing of this control unit 104 are further described in step S510.

[0217] The control unit 104 is further configured to, if it is determined that the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of a set humidity range, control the opening and closing of the return air vent valve, the outlet air valve, and the mixing air vent valve, as well as the opening degree when opening, so that the fan coil unit operates in a preset internal circulation air supply mode for a third set time; after controlling the opening and closing of the return air vent valve, the outlet air valve, and the mixing air vent valve, as well as the opening degree when opening, so that the fan coil unit operates in the preset internal circulation air supply mode for a third set time, control the fan speed according to the area of ​​the low-temperature surface of the water collection tray; wherein, the third set time is, for example, m3 minutes. The specific functions and processing of this control unit 104 are also described in step S520.

[0218] The control unit 104 is further configured to, if it is determined that the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of a set humidity range, control the opening and closing of the return air vent valve, the outlet air valve, and the mixing air vent valve, as well as the opening degree when they are open, so that the fan coil unit operates in a preset external circulation air supply mode for a fourth set time; after controlling the opening and closing of the return air vent valve, the outlet air valve, and the mixing air vent valve, as well as the opening degree when they are open, so that the fan coil unit operates in the preset external circulation air supply mode for a fourth set time, control the opening and closing of the return air vent valve, the outlet air valve, and the mixing air vent valve, as well as the opening degree when they are open, and / or control the speed of the fan, based on the area of ​​the low-temperature surface of the water collection tray. The specific functions and processing of this control unit 104 are further described in step S530.

[0219] like Figure 15 As shown, the composite adjustment and control method for box-type fan coil units also includes:

[0220] Step 6: Following step 5b, further determine whether the real-time relative humidity is met. (High humidity threshold): If yes, proceed to step 6a; otherwise, proceed to step 6b.

[0221] Step 6a: If the real-time relative humidity is satisfied... (High humidity threshold) After running in internal circulation mode for m3 minutes, the area Si of the low-temperature surface of the insulated water receiving tray 7 and the rate of change Δsi of the area Si of the low-temperature surface of the insulated water receiving tray 7 are detected, and then step 7 is executed. The purpose of the internal circulation mode is that the airflow repeatedly passes through the surface cooler, and the temperature and humidity continue to decrease. This airflow can delay or even eliminate the formation of condensation, and at the same time, it can dry and remove condensation, reduce existing condensation, and effectively remove condensate. The detection of the low-temperature surface and its change here is to monitor the effect of decondensation removal. The advantage here is that when the humidity is very high, entering the internal circulation mode can continuously prevent condensation from forming and reduce the condensate that has already formed.

[0222] Step 6b: If the real-time relative humidity is not satisfied... (High humidity threshold) After running in external circulation mode for m4 minutes, the area Si of the low temperature surface of the heat preservation water tray 7 is detected; when the humidity is low, the possibility of condensation is very low. The control of cooling and dehumidification by the surface cooler component 4 does not need to be used to control the generation of condensation outside the water tray, but is directly vented to the room for indoor air conditioning.

[0223] In the solution of this invention, by adopting the composite adjustment and control method of box-type fan coil unit, the internal circulation mode of the fan coil unit is controlled. When the relative humidity reaches a relatively high level during operation, the fan coil unit can choose to enter the internal circulation mode and remove condensation from the critical point water receiving pan (such as the insulated water receiving pan 7) by using low temperature and low wind speed. At the same time, in high temperature environments, when the working motor temperature rises too high, the working motor can be cooled down, thereby ensuring the working conditions and extending the motor life.

[0224] In some embodiments, the control unit 104 controls the opening and closing of the return air vent valve, the outlet air vent valve, and the mixing air vent valve, as well as the opening degree when open, and / or controls the speed of the fan, based on at least one of the indoor relative humidity of the air conditioning system, the area of ​​the low-temperature surface of the drip tray, and the temperature of the motor. The control unit further includes a first process of controlling at least one of the speeds of the return air vent valve, the outlet air vent valve, the mixing air vent valve, and the fan based on the area of ​​the low-temperature surface of the drip tray, as detailed below:

[0225] The control unit 104 is specifically further configured to, in a case where it is determined that the temperature of the motor is less than the allowable maximum temperature of the motor and that the indoor relative humidity of the air conditioning system is within the set humidity range, control opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve and opening degree when opened to make the air disc run in the preset proportional mixed air supply mode for a second set time, and then determine, according to the area of the low-temperature surface of the water pan, a rate of change of the area of the low-temperature surface of the water pan in a set detection period, which is recorded as the area change rate of the low-temperature surface of the water pan. The specific functions and processes of the control unit 104 also refer to step S610.

[0226] The control unit 104 is specifically further configured to determine whether the area of the low-temperature surface of the water pan is less than a first set area; wherein the first set area is Smax (threshold value). The specific functions and processes of the control unit 104 also refer to step S620.

[0227] The control unit 104 is specifically further configured to, if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area, control opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve and opening degree when opened to make the air disc run in the preset internal circulation air supply mode and control the fan to run at the preset lowest gear for a first set time; and after controlling opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve and opening degree when opened to make the air disc run in the preset internal circulation air supply mode and control the fan to run at the preset lowest gear for the first set time, control the rotating speed of the fan according to the area of the low-temperature surface of the water pan; wherein the first set time is m1 minutes. The specific functions and processes of the control unit 104 also refer to step S630.

[0228] The control unit 104 is specifically further configured to, if it is determined that the area of the low-temperature surface of the water pan is less than the first set area, determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to a first set change rate; wherein the first set change rate is c. The specific functions and processes of the control unit 104 also refer to step S640.

[0229] The control unit 104 is specifically further configured to, if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the first set change rate, control the air conditioning system to maintain the current running state for a second set time, and then return to re-control the air conditioning system to run at the target temperature and humidity for an initial set time. The specific functions and processes of the control unit 104 also refer to step S650.

[0230] AsFigure 15 The composite adjustment control method of the box type air disc further comprises:

[0231] Step 10, further judge whether the area Si of the real-time low-temperature surface satisfies Si < Smax (threshold value): if yes, execute step 10a, otherwise execute step 10b.

[0232] Step 10a, if it is judged that the area Si of the real-time low-temperature surface satisfies Si < Smax (threshold value), execute step 11 to further judge the change rate Δsi of the low-temperature surface.

[0233] Step 10b, if it is judged that the area Si of the real-time low-temperature surface does not satisfy Si < Smax (threshold value), run for m1 minutes according to the inner loop mode, detect the area Si of the low-temperature surface of the heat preservation water receiving disc 7 and the change rate Δsi of the area Si of the low-temperature surface of the heat preservation water receiving disc 7, and then execute step 7; the current low-temperature surface is still large (not less than Smax (threshold value)), and the inner loop air mixing mode needs to be continuously executed to perform condensation prevention treatment.

[0234] Step 11, after step 10a, further judge whether the real-time low-temperature surface change rate Δsi satisfies Δsi ≤ c (threshold value): if yes, execute step 11a, otherwise execute step 11b.

[0235] Step 11a, if it is judged that the real-time low-temperature surface change rate Δsi satisfies Δsi ≤ c (threshold value), run for m2 minutes in the current state, and return to step 2; the current low-temperature surface change is relatively stable, the prevention and condensation removal execution scheme is reasonable, and therefore continuous running is performed.

[0236] Step 11b, if it is judged that the real-time low-temperature surface change rate Δsi does not satisfy Δsi ≤ c (threshold value), execute step 12 to further judge the change of the area Si of the low-temperature surface of the heat preservation water receiving disc 7.

[0237] In the scheme of the application, by adopting the composite adjustment control method of the box type air disc, the relative humidity of the return air is monitored, the pre-condensation area of the outer surface of the water receiving disc part is synchronously monitored, when the air relative humidity enters the threshold value, the matched hierarchical air mixing ratio is selected according to the subdivision threshold value to perform hierarchical regulation and control on the condensation area of the heat preservation water receiving disc 7, and then the regulation and control effect (i.e. the low-temperature area change) is followed up to determine the further adjustment strategy (such as upgrading or downgrading regulation or keeping), so as to realize the regulation and control of the condensation generation condition by the air mixing amount, and reduce or avoid the condensation on the surface of the water receiving disc.

[0238] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet damper, the outlet air damper, the mixed air damper, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprises a second process of controlling at least one of the return air outlet damper, the outlet air damper, the mixed air damper, and the rotating speed of the fan according to the area of the low-temperature surface of the water pan, specifically as follows:

[0239] The control unit 104 is specifically further configured to record the area of the low-temperature surface of the water pan obtained in the current detection period as a current value of the area of the low-temperature surface of the water pan, and record the area of the low-temperature surface of the water pan obtained in the last detection period as a last value of the area of the low-temperature surface of the water pan. The last detection period is the last period of the current detection period. The specific functions and processes of the control unit 104 are further described in step S710.

[0240] The control unit 104 is specifically further configured to, after controlling the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened, so that the water pan operates in the preset proportional mixed air supply mode for the second set time, and in the case that the area of the low-temperature surface of the water pan is determined to be less than the first set area, determine whether the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan, if the area change rate of the low-temperature surface of the water pan is determined to be greater than the first set change rate. The specific functions and processes of the control unit 104 are further described in step S720.

[0241] The control unit 104 is specifically further configured to, if the current value of the area of the low-temperature surface of the water pan is determined to be less than the last value of the area of the low-temperature surface of the water pan, control the air damper to operate at a preset gear for a second set time, and then return to control the air conditioning system to operate at the target temperature and humidity for the initial set time; or control the opening degree of the mixed air damper to decrease by a preset opening degree, and then make the water pan operate in the preset proportional mixed air supply mode for a second set time, and then return to control the air conditioning system to operate at the target temperature and humidity for the initial set time; wherein the preset gear is, for example, a first gear, and the preset opening degree is, for example, a first mixed air opening degree K. The specific functions and processes of the control unit 104 are further described in step S730.

[0242] The control unit 104 is further configured to control the air damper of the fan to run at a preset level for a second set time, and then return to control the air conditioning system to run at the target temperature and humidity for an initial set time, if it is determined that the current value of the area of the low-temperature surface of the water pan is greater than or equal to the previous value of the area of the low-temperature surface of the water pan; or control the opening of the air mixing port to increase by a preset opening, and then control the fan to run in a preset proportional air mixing mode for a second set time, and then return to control the air conditioning system to run at the target temperature and humidity for an initial set time. The specific functions and processes of the control unit 104 are also described in step S740.

[0243] As shown in Figure 15 , the composite adjustment and control method of the box-type air disc further comprises:

[0244] Step 12: If the current low-temperature surface area Si is less than S i-1 , step 12a is executed, otherwise step 12b is executed. Wherein, S i-1 is the low-temperature surface area Si detected in the previous detection cycle.

[0245] Step 12a: If it is determined that the current low-temperature surface area Si is less than S i-1 , the fan level is reduced by one level or the air mixing opening K is reduced by one level to run for m2 minutes, and then return to step 2; the current low-temperature surface is much smaller than the previous condensation surface, and the execution of the prevention and condensation removal execution scheme is unreasonable (too large), so the excessive capacity is reduced by reducing the air damper, thereby adjusting the execution strategy.

[0246] Step 12b: If it is determined that the current low-temperature surface area Si is not less than S i-1 , the fan level is increased by one level or the air mixing opening K is increased by one level to run for m2 minutes, and then return to step 2; the current low-temperature surface is much larger than the previous condensation surface, and the execution of the prevention and condensation removal execution scheme is unreasonable (too small), so the capacity is increased by increasing the air damper, thereby adjusting the execution strategy.

[0247] In the scheme of the present application, the composite adjustment and control method of the box-type air disc is adopted, the real-time air humidity is detected during the operation of the air disc, and then compared with the actual situation, classified control is performed, and through the box-type internal circulation, external circulation, proportional air mixing and self-adjusting strategy, the condensation control and treatment of the water pan, the electrical temperature rise control and the indoor air conditioning are met under different temperature and humidity conditions, and the comfort demand and the equipment operation environment demand are considered.

[0248] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet damper, the outlet air damper, the mixed air damper, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the low-temperature surface area of the water pan, and the temperature of the motor, and further comprises a third process of controlling at least one of the return air outlet damper, the outlet air damper, the mixed air damper, and the rotating speed of the fan according to the low-temperature surface area of the water pan, specifically as follows:

[0249] The control unit 104 is specifically further configured to, after controlling the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode for the third preset time, or after controlling the opening and closing of the return air outlet damper, the outlet air damper, and the mixed air damper, and the opening degree when opened, so that the air pan runs in the preset internal circulation air supply mode and the fan runs at the preset lowest gear for the first preset time, determines the change rate of the low-temperature surface area of the water pan in a set detection period according to the low-temperature surface area of the water pan, which is recorded as the area change rate of the low-temperature surface of the water pan. The specific functions and processes of the control unit 104 are also described in step S810.

[0250] The control unit 104 is specifically further configured to determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; wherein the second set change rate is, for example, lmin. The specific functions and processes of the control unit 104 are also described in step S820.

[0251] The control unit 104 is specifically further configured to, if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate, control the air gear of the fan to be raised by a preset gear for a fourth preset time, and then return to re-determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate. The specific functions and processes of the control unit 104 are also described in step S830.

[0252] The control unit 104 is specifically further configured to, if it is determined that the area change rate of the low-temperature surface of the water pan is greater than the second set change rate, determine whether the low-temperature surface area of the water pan is less than the second set area; wherein the second set area is, for example, Smin(threshold). The specific functions and processes of the control unit 104 are also described in step S840.

[0253] The control unit 104 is further configured to return to control the air conditioning system to run at the target temperature and humidity for the initial set time if it is determined that the area of the low-temperature surface of the water pan is less than the second set area. The specific functions and processes of the control unit 104 are also described in step S850.

[0254] The control unit 104 is further configured to continue to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, to make the air pan run in the preset internal circulation air supply mode for the third set time, if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the second set area. The specific functions and processes of the control unit 104 are also described in step S860.

[0255] As shown in Figure 15 The composite adjustment and control method of the box-type air pan further comprises:

[0256] Step 7, further judge whether the change rate of the area Si of the low-temperature surface of the real-time heat preservation water pan 7, i.e. the low-temperature surface change rate Δsi, satisfies the condition of Δsi≤Lmin(threshold value): if yes, execute step 7a, otherwise execute step 7b.

[0257] Step 7a, if it is determined that the change rate of the area Si of the low-temperature surface of the real-time heat preservation water pan 7, i.e. the low-temperature surface change rate Δsi, satisfies the condition of Δsi≤Lmin(threshold value), then increase the fan gear by one level and run for m4 minutes, and then return to step 7. In the current internal circulation state, the condensation surface reduces slowly, and increasing the fan gear by one level can speed up the reduction and elimination of condensation.

[0258] Step 7b, if it is determined that the change rate of the area Si of the low-temperature surface of the real-time heat preservation water pan 7, i.e. the low-temperature surface change rate Δsi, does not satisfy the condition of Δsi≤Lmin(threshold value), then execute step 8 to further judge the area Si of the low-temperature surface of the real-time detection heat preservation water pan 7.

[0259] Step 8, further judge whether the area Si of the real-time low-temperature surface satisfies the condition of Si

[0260] Step 8a, if it is determined that the area Si of the real-time low-temperature surface satisfies the condition of Si

[0261] Step 8b, if it is determined that the area Si of the real-time low-temperature surface does not satisfy the condition of Si

[0262] In the scheme of the present application, by adopting the composite adjustment control method of the box-type air disc, the relative humidity of the return air is monitored, when the relative humidity of the return air is too high (i.e. reaches the high humidity threshold), the internal circulation operation mode is started, the condensation on the outer surface of the water pan is gradually removed through the circulating air effect of continuous cooling and dehumidification, and then the further adjustment strategy (upshift or downshift) is determined by detecting the change of the condensation, and further when the condensation on the water pan reaches the exit threshold, the mixed air or external circulation mode can be entered for regulation and control, so as to realize the regulation and control of the condensation generated during the operation of the unit under different relative humidity conditions.

[0263] In some embodiments, the control unit 104 controls the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controls the rotating speed of the fan according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, and further comprises a fourth process of controlling at least one of the return air outlet air valve, the outlet air valve, the mixed air outlet air valve and the rotating speed of the fan according to the area of the low-temperature surface of the water pan, which is specifically as follows:

[0264] The control unit 104 is specifically further configured to determine whether the area of the low-temperature surface of the water pan is less than a first set area after controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc operates in the preset external circulation air supply mode for a fourth set time. The first set area is Smax (threshold). The specific functions and processes of the control unit 104 are also referred to step S910.

[0265] The control unit 104 is specifically further configured to return to control the air conditioning system to operate according to the target temperature and humidity for the initial set time if it is determined that the area of the low-temperature surface of the water pan is less than the first set area. The specific functions and processes of the control unit 104 are also referred to step S920.

[0266] The control unit 104 is specifically further configured to continue to control the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc operates in the preset internal circulation air supply mode and the fan operates at the preset lowest gear for a first set time if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area. The specific functions and processes of the control unit 104 are also referred to step S930.

[0267] As shown in ​ The composite adjustment control method of the box-type air disc further comprises:

[0268] In step 6b, if it is judged that the real-time relative humidity If the humidity is low (low humidity threshold), the area Si of the low temperature surface of the heat preservation water receiving tray 7 is detected after the air conditioner runs in the outer circulation mode for m4 minutes, and then it is determined whether the area Si of the low temperature surface is less than Smax (threshold value) in real time: if yes, the process returns to step 2; otherwise, the area Si of the low temperature surface of the heat preservation water receiving tray 7 and the change rate Δsi of the area Si of the low temperature surface of the heat preservation water receiving tray 7 are detected after the air conditioner runs in the inner circulation mode and at the low gear for m1 minutes, and then step 7 is performed. When the humidity is low, the possibility of producing condensate water is low, and the control of the temperature reduction and dehumidification by the air cooler assembly 4 does not need to be divided into a part for controlling the production of the condensate water on the water receiving tray and a part for directly leading to the indoor air for indoor air conditioning.

[0269] In the scheme of the present application, a composite regulation and control method of a box type air disc in an air conditioning system: through box type inner circulation, outer circulation, proportional air mixing and autonomous regulation strategy, so as to meet the condensate water control and management of the water receiving tray, the electrical temperature rise control and the indoor air conditioning under different temperature and humidity conditions.

[0270] Since the processing and functions realized by the device of the present embodiment basically correspond to the foregoing embodiments, principles and examples of the method, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments, which will not be repeated here.

[0271] According to the embodiments of the present application, an air conditioning system corresponding to the control device of the air disc is also provided. The air conditioning system can include the control device of the air disc described above.

[0272] Since the processing and functions realized by the air conditioning system of the present embodiment basically correspond to the foregoing embodiments, principles and examples of the device, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments, which will not be repeated here.

[0273] According to the embodiments of the present application, a computer program product corresponding to the control method of the air conditioning system is also provided, including a computer program which, when executed by a processor, realizes the steps of the control method of the air conditioning system described above.

[0274] Since the processing and functions realized by the product of the present embodiment basically correspond to the foregoing embodiments, principles and examples of the method, the description of the present embodiment will not be elaborated on the related descriptions in the foregoing embodiments, which will not be repeated here.

[0275] According to the embodiments of the present application, a storage medium corresponding to the control method of the air conditioning system is also provided, including a stored program, wherein when the program is running, the device where the storage medium is located executes the steps of the control method of the air conditioning system described above.

[0276] Since the processing and functions realized by the storage medium of the embodiment basically correspond to the embodiments, principles and examples of the foregoing method, the description of the embodiment is not described in detail, and the related description in the foregoing embodiments can be referred to, and is not described herein.

[0277] In summary, those skilled in the art can easily understand that the above-mentioned advantageous modes can be freely combined and superimposed without conflict.

[0278] The above only describes the embodiments of the present application and is not used to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A control method of an air conditioning system, characterized by, The air conditioning system has a wind disc, an enclosed shell is arranged at the periphery of the wind disc; the wind disc has a fan, a water pan, a motor, a return air inlet, an air outlet and a mixed air inlet, a return air inlet air valve is arranged at the return air inlet, an air outlet air valve is arranged at the air outlet, and a mixed air inlet air valve is arranged at the mixed air inlet; the control method of the air conditioning system comprises: After the air conditioning system is started, the air conditioning system is controlled to run at a target temperature and humidity for an initial setting time; The indoor relative humidity of the air conditioning system is obtained, the area of the low temperature surface of the water pan is obtained, and the temperature of the motor is obtained; According to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan and the temperature of the motor, the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve and the opening degree when opened, and / or the speed of the fan are controlled.

2. The control method of the air conditioning system according to claim 1, characterized by, Wherein, In the case that the return air inlet air valve is fully opened, the air outlet air valve is fully opened, and the mixed air inlet air valve is closed, the wind disc runs in a preset external circulation air supply mode; In the case that the return air inlet air valve is fully opened, the air outlet air valve is fully opened, and the mixed air inlet air valve is opened at a required mixed air ratio opening degree, the wind disc runs in a preset proportional mixed air supply mode; In the case that the return air inlet air valve is closed, the air outlet air valve is fully opened, and the mixed air inlet air valve is fully opened, the wind disc runs in a preset internal circulation air supply mode.

3. The control method of an air conditioning system according to claim 1 or 2, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan and the temperature of the motor, the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve and the opening degree when opened, and / or the speed of the fan are controlled. Determine whether the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor; If it is determined that the temperature of the motor is greater than or equal to the maximum allowable temperature of the motor, the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve and the opening degree when opened are controlled to make the wind disc run in a preset internal circulation air supply mode for a first setting time; Determine whether the temperature of the motor is less than or equal to the normal temperature critical value of the motor; If it is determined that the temperature of the motor is less than or equal to the normal temperature critical value of the motor, return to re-control the air conditioning system to run at a target temperature and humidity for an initial setting time; If it is determined that the temperature of the motor is greater than the normal temperature critical value of the motor, return to continue to control the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve and the opening degree when opened to make the wind disc run in a preset internal circulation air supply mode.

4. The control method of the air conditioning system according to claim 1 or 2, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan and the temperature of the motor, the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve and the opening degree when opened, and / or the speed of the fan are controlled. determining whether the indoor relative humidity of the air conditioning system is within a set humidity range, if it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor; controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc runs in a preset proportional mixed air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the set humidity range.

5. The control method of the air conditioning system according to claim 4, characterized by, The set humidity range includes: a first interval, a second interval and a third interval in which the humidity value increases in turn. controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc runs in a preset proportional mixed air supply mode for a second set time, includes: determining the interval to which the indoor relative humidity of the air conditioning system belongs in the set humidity range; controlling the opening degree of the mixed air outlet air valve when opened to be a first set opening degree, so that the air disc runs in a preset proportional mixed air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the first interval; controlling the opening degree of the mixed air outlet air valve when opened to be a second set opening degree, so that the air disc runs in a preset proportional mixed air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the second interval; controlling the opening degree of the mixed air outlet air valve when opened to be a third set opening degree, so that the air disc runs in a preset proportional mixed air supply mode for a second set time, if it is determined that the indoor relative humidity of the air conditioning system is within the third interval.

6. The control method of an air conditioning system according to any one of claims 1 to 5, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan, and the temperature of the motor, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controlling the speed of the fan, further includes: determining whether the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range, and determining whether the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the set humidity range, if it is determined that the temperature of the motor is less than the maximum allowable temperature of the motor, and it is determined that the indoor relative humidity of the air conditioning system is not within the set humidity range; controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc runs in a preset internal circulation air supply mode for a third set time, if it is determined that the indoor relative humidity of the air conditioning system is greater than or equal to the upper limit of the set humidity range; controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc runs in a preset external circulation air supply mode for a fourth set time, if it is determined that the indoor relative humidity of the air conditioning system is less than or equal to the lower limit of the set humidity range.

7. The control method of an air conditioning system according to any one of claims 1 to 6, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low temperature surface of the water pan, and the temperature of the motor, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or controlling the speed of the fan, further includes: determining whether the area of the low-temperature surface of the water pan is less than a first set area; if it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the first set area, controlling the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, so that the air disc runs in a preset internal circulation air supply mode, and the fan is controlled to run at a preset lowest gear for a first set time; if it is determined that the area of the low-temperature surface of the water pan is less than the first set area, determining whether the area change rate of the low-temperature surface of the water pan is less than or equal to a first set change rate; if it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the first set change rate, controlling the air conditioning system to maintain the current running state for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time. According to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled, and / or the speed of the fan is controlled, and the method further comprises: 8.The control method of an air conditioning system according to claim 7, characterized in that, the area of the low-temperature surface of the water pan obtained in the current detection period is recorded as the current value of the area of the low-temperature surface of the water pan; and the area of the low-temperature surface of the water pan obtained in the last detection period is recorded as the last value of the area of the low-temperature surface of the water pan; if it is determined that the area change rate of the low-temperature surface of the water pan is greater than the first set change rate, determining whether the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan; if it is determined that the current value of the area of the low-temperature surface of the water pan is less than the last value of the area of the low-temperature surface of the water pan, controlling the air fan to run at a lower gear by a preset gear for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; or controlling the opening degree of the mixed air outlet air valve to decrease by a preset opening degree, and then making the air disc run in a preset proportional mixed air supply mode for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; if it is determined that the current value of the area of the low-temperature surface of the water pan is greater than or equal to the last value of the area of the low-temperature surface of the water pan, controlling the air fan to run at a higher gear by a preset gear for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time; or controlling the opening degree of the mixed air outlet air valve to increase by a preset opening degree, and then making the air disc run in a preset proportional mixed air supply mode for a second set time, and then returning to control the air conditioning system to run at the target temperature and humidity for an initial set time. ​ 9. The control method of an air conditioning system according to any one of claims 1 to 6, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or the speed of the fan are controlled, and the air conditioning system further comprises: After the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode for the third set time, or after the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode and control the fan to run at the preset lowest gear for the first set time, the area change rate of the low-temperature surface of the water pan is determined according to the area of the low-temperature surface of the water pan, which is recorded as the area change rate of the low-temperature surface of the water pan; Determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; If it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate, the air gear of the fan is controlled to be raised by a preset gear for a fourth set time, and then returned to re-determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; If it is determined that the area change rate of the low-temperature surface of the water pan is greater than the second set change rate, it is determined whether the area of the low-temperature surface of the water pan is less than the second set area; If it is determined that the area of the low-temperature surface of the water pan is less than the second set area, the air conditioning system is returned to be controlled to run at the initial set time according to the target temperature and humidity; If it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the second set area, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are returned to be continuously controlled to make the air disc run in the preset internal circulation air supply mode for the third set time.

10. The control method of an air conditioning system according to any one of claims 1 to 6, characterized by, According to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened, and / or the speed of the fan are controlled, and the air conditioning system further comprises: After the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode for the third set time, or after the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are controlled to make the air disc run in the preset internal circulation air supply mode and control the fan to run at the preset lowest gear for the first set time, the area change rate of the low-temperature surface of the water pan is determined according to the area of the low-temperature surface of the water pan, which is recorded as the area change rate of the low-temperature surface of the water pan; Determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; If it is determined that the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate, the air gear of the fan is controlled to be raised by a preset gear for a fourth set time, and then returned to re-determine whether the area change rate of the low-temperature surface of the water pan is less than or equal to the second set change rate; If it is determined that the area change rate of the low-temperature surface of the water pan is greater than the second set change rate, it is determined whether the area of the low-temperature surface of the water pan is less than the second set area; If it is determined that the area of the low-temperature surface of the water pan is less than the second set area, the air conditioning system is returned to be controlled to run at the initial set time according to the target temperature and humidity; If it is determined that the area of the low-temperature surface of the water pan is greater than or equal to the second set area, the opening and closing of the return air outlet air valve, the outlet air valve and the mixed air outlet air valve, and the opening degree when opened are returned to be continuously controlled to make the air disc run in the preset internal circulation air supply mode for the third set time.

11. A control device of a wind disc, characterized by, The air conditioning system has a wind disc, an enclosed shell is arranged at the periphery of the wind disc; the wind disc has a fan, a water pan, a motor, a return air inlet, an air outlet and a mixed air inlet, a return air inlet air valve is arranged at the return air inlet, an air outlet air valve is arranged at the air outlet, and a mixed air inlet air valve is arranged at the mixed air inlet; the control device of the air conditioning system comprises: A control unit is configured to control the air conditioning system to operate at a target temperature and humidity for an initial setting time after the air conditioning system is turned on; An acquisition unit is configured to acquire the indoor relative humidity of the air conditioning system, acquire the area of the low-temperature surface of the water pan, and acquire the temperature of the motor; The control unit is further configured to control the opening and closing of the return air inlet air valve, the air outlet air valve and the mixed air inlet air valve, and the opening degree when opened, and / or control the rotating speed of the fan, according to at least one of the indoor relative humidity of the air conditioning system, the area of the low-temperature surface of the water pan, and the temperature of the motor.

12. An air conditioning system characterized by, Comprise: The control device of the wind disc according to claim 11.

13. A storage medium, characterized by The storage medium comprises a stored program, wherein the program controls the device where the storage medium is located to execute the control method of the air conditioning system according to any one of claims 1 to 10 when the program is running.

14. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the control method of the air conditioning system according to any one of claims 1 to 10.

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