Air conditioner control method, device, air conditioner and storage medium

Abstract

The present invention discloses a control method, device, air conditioner, and storage medium for an air conditioner. The method includes: controlling the internal fan and compressor to start and operate in dehumidification mode; if the current indoor ambient humidity is less than or equal to the current outdoor ambient humidity, maintaining the current operating state when the current indoor ambient temperature is greater than or equal to a preset indoor ambient temperature; entering an auxiliary heating dehumidification mode when the current indoor ambient temperature is less than the preset indoor ambient temperature, adjusting the electric auxiliary heating system based on the current air outlet temperature and the auxiliary heating operation duration; and entering a fresh air dehumidification mode if the current indoor ambient humidity is greater than the current outdoor ambient humidity, adjusting the compressor frequency, internal fan speed, and fresh air fan speed based on the current indoor ambient temperature and air outlet temperature. This solution improves the user's comfort experience by entering the fresh air dehumidification mode when the indoor ambient humidity is high and entering the auxiliary heating dehumidification mode when the indoor ambient temperature is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioners, and specifically relates to a control method and device for an air conditioner, an air conditioner and a storage medium, and more particularly to a dehumidification control method and device for an air conditioner, an air conditioner and a storage medium. Background Art

[0002] When the air conditioner is operating in cooling mode, the indoor air in the room where the air conditioner is located passes through the indoor heat exchanger to exchange heat, lowering the air temperature. The cooled air is then delivered to the room by the internal fan, achieving the air conditioner's cooling function. However, when the air conditioner is operating in cooling mode, as the temperature difference between the indoor and outdoor temperatures increases, condensation will form on the indoor heat exchanger, causing the air outlet to carry water. Therefore, dehumidification control is required when the air conditioner is operating in cooling mode.

[0003] In related solutions, when the air conditioner is operating in dehumidification mode, most of them reduce the air volume supplied to the room by the air conditioner by reducing the speed of the internal fan, thereby reducing the temperature of the indoor heat exchanger of the air conditioner, increasing the temperature difference between the indoor heat exchanger and the indoor air temperature, lowering the dew point temperature, and enhancing the moisture separation capacity of the indoor heat exchanger, thus achieving the initial effect. The reduction in the indoor heat exchanger temperature of the air conditioner will also cause the air outlet temperature of the air conditioner to decrease synchronously. However, when the air conditioner is operating in cooling mode, when dehumidification control is performed by reducing the speed of the internal fan, when the indoor ambient temperature is high, as the air volume of the air conditioner decreases, the indoor temperature drop rate is slow, which will significantly reduce the indoor temperature drop effect and affect the user's comfort experience. At the same time, when the indoor ambient temperature is low, the user is more sensitive to cold, and the air outlet temperature of the air conditioner is still low, which can easily cause user discomfort.

[0004] The above content is only used to assist in understanding the technical solution of the present invention and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The object of the present invention is to provide a control method, device, air conditioner and storage medium for an air conditioner, so as to solve the problem in the related scheme that when the air conditioner is operating in cooling mode, in the process of dehumidification control by reducing the speed of the internal fan, when the indoor ambient temperature is high, the indoor temperature reduction effect is greatly reduced due to the slow indoor temperature reduction rate, and when the indoor ambient temperature is low, the air outlet temperature of the air conditioner is still low, both of which affect the user's comfort experience. The purpose of the present invention is to provide a control method, device, air conditioner and storage medium for an air conditioner, so as to solve the problem that when the air conditioner is operating in cooling mode, the dehumidification control is performed by reducing the speed of the internal fan. When the indoor ambient temperature is high, the indoor temperature reduction effect is greatly reduced due to the slow indoor temperature reduction rate, and when the indoor ambient temperature is low, the air outlet temperature of the air conditioner is still low, both of which affect the user's comfort experience. The purpose of the present invention is to provide a fresh air dehumidification control mode and an auxiliary heating dehumidification control mode in the dehumidification mode of the air conditioner. When the air conditioner is operating in dehumidification mode, the fresh air dehumidification control mode is entered when the indoor ambient humidity is higher than the outdoor ambient humidity, and the auxiliary heating dehumidification control mode is entered when the indoor ambient humidity is not higher than the outdoor ambient humidity and the indoor ambient temperature is low, so as to improve the user's comfort experience when the air conditioner is operating in dehumidification mode under different indoor and outdoor ambient humidities.

[0006] The present invention provides a control method for an air conditioner, wherein the air conditioner comprises a heat exchange system, a fresh air system, and an electric auxiliary heating system; the heat exchange system can operate in a dehumidification mode, the fresh air system can operate in a fresh air mode, and the electric auxiliary heating system can operate in an electric auxiliary heating mode; when the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in a fresh air dehumidification mode; when the dehumidification mode and the electric auxiliary heating mode are operated together, the air conditioner can operate in an electric auxiliary heating dehumidification mode; the control method for the air conditioner comprises: after the air conditioner enters the dehumidification mode, controlling the indoor fan of the air conditioner to operate at a preset first initial speed, and controlling the compressor of the air conditioner to operate at a preset initial frequency; obtaining the current indoor ambient humidity of the air conditioner, obtaining the current outdoor ambient humidity of the air conditioner, obtaining the current indoor ambient temperature of the air conditioner, obtaining the current outdoor ambient temperature of the air conditioner, obtaining the current air outlet temperature of the air conditioner, and obtaining the current auxiliary heating operation time of the electric auxiliary heating system when the electric auxiliary heating system is turned on; determining the current indoor ambient humidity of the air conditioner whether the ambient humidity is greater than the current outdoor ambient humidity of the air conditioner; if it is determined that the current indoor ambient humidity of the air conditioner is less than or equal to the current outdoor ambient humidity of the air conditioner, then, if the current indoor ambient temperature of the air conditioner is greater than or equal to a preset indoor ambient temperature, controlling the air conditioner to maintain the current operating state; if the current indoor ambient temperature of the air conditioner is less than the preset indoor ambient temperature, controlling the air conditioner to enter the auxiliary heating dehumidification mode; and in the auxiliary heating dehumidification mode, adjusting the operation process of the electric auxiliary heating system in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system; if it is determined that the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner, controlling the air conditioner to enter the fresh air dehumidification mode; and in the fresh air dehumidification mode, adjusting at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner, and the fresh air fan speed of the air conditioner in combination with the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner, and the current air outlet temperature of the air conditioner.

[0007] In some embodiments, in the auxiliary heating and dehumidification mode, the operation process of the electric auxiliary heating system is adjusted in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system, including: in the auxiliary heating and dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature: if so, controlling the electric auxiliary heating system to turn on; otherwise, controlling the air conditioner to maintain the current operation state; when the electric auxiliary heating system is turned on, determining whether the current auxiliary heating operation time of the electric auxiliary heating system is greater than the preset electric auxiliary heating operation time and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature; if so, controlling the electric auxiliary heating system to turn off, and then returning to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature; if not, controlling the air conditioner to maintain the current operation state.

[0008] In some embodiments, in the fresh air dehumidification mode, in combination with the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner and the current air outlet temperature of the air conditioner, at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner is adjusted, including: in the fresh air dehumidification mode, the fresh air damper of the fresh air system is controlled to open, and the fresh air fan of the fresh air system is controlled to operate at a preset second initial speed; the difference between the current indoor ambient temperature of the air conditioner and the target indoor ambient temperature of the air conditioner is determined, which is recorded as the current indoor ambient temperature difference of the air conditioner; and whether the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, and whether the current indoor ambient temperature difference of the air conditioner is less than 0; if it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, the air conditioner is controlled to operate according to the first control logic in the fresh air dehumidification mode; in the fresh air dehumidification mode , under the first control logic of the air conditioner, the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and is greater than 0, the air conditioner is controlled to operate according to the second control logic in the fresh air dehumidification mode; under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, the air conditioner is controlled to operate according to the third control logic in the fresh air dehumidification mode; under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted.

[0009] In some embodiments, under the first control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: under the first control logic in the fresh air dehumidification mode, determining whether the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment for a continuous set time; if not, controlling the air conditioner to maintain the current operating state; if so, increasing the compressor frequency of the air conditioner by a first set frequency amplitude until the compressor frequency of the air conditioner increases to a set maximum frequency, and then determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then controlling the air conditioner to maintain the current operating state if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment for a continuous set time; and controlling the current indoor ambient temperature of the air conditioner to maintain the current operating state if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment for a continuous set time. When the temperature of the fresh air fan of the air conditioner is lower than the preset comfort temperature of the indoor environment, the speed of the fresh air fan of the air conditioner is reduced by a first set speed amplitude until the speed of the fresh air fan of the air conditioner is reduced to a set minimum speed. If the current indoor ambient temperature of the air conditioner is still greater than the preset comfort temperature of the indoor environment within a continuous set time, the fresh air fan of the fresh air system is controlled to be shut down, and the fresh air damper of the fresh air system is controlled to be closed. If the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within a continuous set time, the air conditioner is controlled to maintain the current operating state. If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within a continuous set time, the air conditioner is controlled to maintain the current operating state. If the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment within a continuous set time, the speed of the fresh air fan of the air conditioner is increased by a first set speed amplitude until the speed of the fresh air fan of the air conditioner is increased to a set maximum speed, and the air conditioner is controlled to maintain the current operating state.

[0010] In some embodiments, under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: under the second control logic in the fresh air dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time: if not, controlling the air conditioner to maintain the current operating state; if so, reducing the compressor frequency of the air conditioner according to the second set frequency amplitude until the compressor frequency of the air conditioner is reduced to the set minimum frequency: if not satisfied If the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature for a continuous set time, the internal fan speed of the air conditioner is increased according to a second set speed amplitude; when the internal fan speed of the air conditioner is increased according to the second set speed amplitude, if the internal fan speed of the air conditioner has increased to the set maximum speed, it is determined whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then When the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, the air conditioner is controlled to maintain the current operating state; when the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, the fresh air fan speed of the air conditioner is increased by a first set speed amplitude until the fresh air fan speed of the air conditioner increases to the set maximum speed, and the air conditioner is controlled to maintain the current operating state; if it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, when the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, When the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature within the continuous set time, the fresh air fan speed of the air conditioner is reduced by the first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to the set minimum speed: if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature within the continuous set time, the fresh air fan of the fresh air system is controlled to stop, and the fresh air damper of the fresh air system is controlled to close; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state.

[0011] In some embodiments, under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted, including: under the third control logic in the fresh air dehumidification mode, controlling the compressor of the air conditioner to stop, controlling the internal fan speed of the air conditioner to maintain the current speed, and controlling the fresh air fan speed of the air conditioner to maintain the current speed.

[0012] In accordance with the above method, the present invention provides a control device for an air conditioner, wherein the air conditioner has a heat exchange system, a fresh air system and an electric auxiliary heating system; the heat exchange system can operate in a dehumidification mode, the fresh air system can operate in a fresh air mode, and the electric auxiliary heating system can operate in an electric auxiliary heating mode; when the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in a fresh air dehumidification mode; when the dehumidification mode and the electric auxiliary heating mode are operated together, the air conditioner can operate in an electric auxiliary heating dehumidification mode; the control device for the air conditioner comprises: a control unit configured The air conditioner is configured to, after the air conditioner enters the dehumidification mode, control the indoor fan of the air conditioner to operate at a preset first initial speed, and control the compressor of the air conditioner to operate at a preset initial frequency; an acquisition unit is configured to acquire the current indoor ambient humidity of the air conditioner, acquire the current outdoor ambient humidity of the air conditioner, acquire the current indoor ambient temperature of the air conditioner, acquire the current outdoor ambient temperature of the air conditioner, acquire the current air outlet temperature of the air conditioner, and acquire the current auxiliary heating operation time of the electric auxiliary heating system when the electric auxiliary heating system is turned on; the control unit is further configured to determine the the control unit is further configured to, if it is determined that the current indoor ambient humidity of the air conditioner is less than or equal to the current outdoor ambient humidity of the air conditioner, control the air conditioner to maintain the current operating state if the current indoor ambient temperature of the air conditioner is greater than or equal to the preset indoor ambient temperature; and, if the current indoor ambient temperature of the air conditioner is less than the preset indoor ambient temperature, control the air conditioner to enter the auxiliary heating dehumidification mode; and, in the auxiliary heating dehumidification mode, adjust the operation process of the electric auxiliary heating system in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system; the control unit is further configured to, if it is determined that the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner, control the air conditioner to enter the fresh air dehumidification mode; and, in the fresh air dehumidification mode, adjust at least one of the compressor frequency of the air conditioner, the rotation speed of the indoor fan of the air conditioner, and the rotation speed of the fresh air fan of the air conditioner in combination with the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner, and the current air outlet temperature of the air conditioner.

[0013] In some embodiments, the control unit, in the auxiliary heating and dehumidification mode, adjusts the operation process of the electric auxiliary heating system in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system, including: in the auxiliary heating and dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature: if so, controlling the electric auxiliary heating system to turn on; otherwise, controlling the air conditioner to maintain the current operation state; when the electric auxiliary heating system is turned on, determining whether the current auxiliary heating operation time of the electric auxiliary heating system is greater than the preset electric auxiliary heating operation time and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature; if so, controlling the electric auxiliary heating system to turn off, and then returning to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature; if not, controlling the air conditioner to maintain the current operation state.

[0014] In some embodiments, the control unit, in the fresh air dehumidification mode, combines the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner and the current air outlet temperature of the air conditioner to adjust at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner, including: in the fresh air dehumidification mode, controlling the fresh air damper of the fresh air system to open, and controlling the fresh air fan of the fresh air system to operate at a preset second initial speed; determining the difference between the current indoor ambient temperature of the air conditioner and the target indoor ambient temperature of the air conditioner, recorded as the current indoor ambient temperature difference of the air conditioner; and determining whether the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, and determining whether the current indoor ambient temperature difference of the air conditioner is less than 0; if it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, controlling the air conditioner to operate according to the first control logic in the fresh air dehumidification mode; in the fresh air dehumidification mode Under the first control logic in the mode, the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and is greater than 0, the air conditioner is controlled to operate according to the second control logic in the fresh air dehumidification mode; under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, the air conditioner is controlled to operate according to the third control logic in the fresh air dehumidification mode; under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted.

[0015] In some embodiments, the control unit, under the first control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: under the first control logic in the fresh air dehumidification mode, determining whether the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment for a continuous set time; if not, controlling the air conditioner to maintain the current operating state; if so, increasing the compressor frequency of the air conditioner by a first set frequency amplitude until the compressor frequency of the air conditioner increases to a set maximum frequency, and then determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then controlling the air conditioner to maintain the current operating state if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment for a continuous set time; and if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment for a continuous set time. When the indoor ambient temperature is greater than the preset comfort temperature of the indoor environment, the speed of the fresh air fan of the air conditioner is reduced by a first set speed amplitude until the speed of the fresh air fan of the air conditioner is reduced to a set minimum speed. If the current indoor ambient temperature of the air conditioner is still greater than the preset comfort temperature of the indoor environment within a continuous set time, the fresh air fan of the fresh air system is controlled to be stopped, and the fresh air damper of the fresh air system is controlled to be closed. If the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within a continuous set time, the air conditioner is controlled to maintain the current operating state. If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within a continuous set time, the air conditioner is controlled to maintain the current operating state. If the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment within a continuous set time, the speed of the fresh air fan of the air conditioner is increased by a first set speed amplitude until the speed of the fresh air fan of the air conditioner is increased to a set maximum speed, and then the air conditioner is controlled to maintain the current operating state.

[0016] In some embodiments, the control unit, under the second control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: under the second control logic in the fresh air dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time: if not, controlling the air conditioner to maintain the current operating state; if so, reducing the compressor frequency of the air conditioner according to the second set frequency amplitude until the compressor frequency of the air conditioner is reduced to the set minimum frequency After: if the current air outlet temperature of the air conditioner is not lower than the first preset air outlet temperature for a continuous set time period, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is still lower than the first preset air outlet temperature for a continuous set time period, the internal fan speed of the air conditioner is increased according to a second set speed amplitude; when the internal fan speed of the air conditioner is increased according to the second set speed amplitude, if the internal fan speed of the air conditioner has increased to the set maximum speed, it is determined whether the current outdoor ambient temperature of the air conditioner is higher than the current indoor ambient temperature of the air conditioner; if it is determined that the current outdoor ambient temperature of the air conditioner is higher than the current indoor ambient temperature of the air conditioner When the temperature of the air conditioner is lower than the preset temperature for a continuous period of time, the air conditioner is controlled to maintain the current operating state; when the temperature of the air conditioner is lower than the preset temperature for a continuous period of time, the air conditioner is controlled to maintain the current operating state; when the temperature of the air conditioner is lower than the preset temperature for a continuous period of time, the air conditioner is controlled to maintain the current operating state by increasing the speed of the fresh air fan of the air conditioner according to the first set speed amplitude until the speed of the fresh air fan of the air conditioner increases to the set maximum speed; if it is determined that the current outdoor ambient temperature of the air conditioner is lower than or equal to the current indoor ambient temperature of the air conditioner, when the current air outlet temperature of the air conditioner is lower than the first preset temperature for a continuous period of time, temperature, the air conditioner is controlled to maintain the current operating state; when the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature within the continuous set time, the fresh air fan speed of the air conditioner is reduced according to the first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to the set minimum speed: if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature within the continuous set time, the fresh air fan of the fresh air system is controlled to stop, and the fresh air damper of the fresh air system is controlled to close; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state.

[0017] In some embodiments, the control unit, under the third control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner, including: under the third control logic in the fresh air dehumidification mode, controlling the compressor of the air conditioner to stop, controlling the internal fan speed of the air conditioner to maintain the current speed, and controlling the fresh air fan speed of the air conditioner to maintain the current speed.

[0018] Matching the above device, the present invention provides an air conditioner on another aspect, comprising: the control device of the air conditioner described above.

[0019] In accordance with the above method, the present invention further provides a storage medium, which includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned air conditioner control method.

[0020] Therefore, the solution of the present invention sets the fresh air dehumidification control mode and the auxiliary heat dehumidification control mode in the dehumidification mode of the air conditioner. When the air conditioner runs in the dehumidification mode, when the indoor environment humidity is higher than the outdoor environment humidity, the fresh air dehumidification control mode is entered, and in the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed, and the compressor operating frequency are adjusted according to the indoor environment temperature, the outdoor environment temperature, the indoor set temperature, and the air outlet temperature to achieve rapid dehumidification and avoid temperature drop; when the indoor environment humidity is not higher than the outdoor environment humidity, the indoor environment temperature is detected, and when the indoor environment temperature is lower than the preset indoor environment temperature, the auxiliary heat dehumidification is entered. The air conditioner is in dehumidification mode, and in the auxiliary heating dehumidification control mode, the electric auxiliary heating switch is controlled by the air outlet temperature and the electric auxiliary heating operation time to perform auxiliary heating to avoid triggering the temperature being too low when the indoor ambient temperature is low. Therefore, by setting the fresh air dehumidification control mode and the auxiliary heating dehumidification control mode in the dehumidification mode of the air conditioner, when the air conditioner is running in dehumidification mode, the fresh air dehumidification control mode is entered when the indoor ambient humidity is higher than the outdoor ambient humidity, and the auxiliary heating dehumidification control mode is entered when the indoor ambient humidity is not higher than the outdoor ambient humidity and the indoor ambient temperature is low, thereby improving the user's comfort experience when the air conditioner is running in dehumidification mode under different indoor and outdoor ambient humidity.

[0021] Other features and advantages of the present invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the present invention.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 1 is a flow chart of an embodiment of a method for controlling an air conditioner according to the present invention;

[0024] Figure 2 A flow chart of an embodiment of adjusting the operation process of the electric auxiliary heating system in the auxiliary heating and dehumidification mode in the method of the present invention;

[0025] Figure 3 A flow chart of an embodiment of the method of the present invention for adjusting at least one of the compressor frequency of the air conditioner, the rotation speed of the indoor fan of the air conditioner, and the rotation speed of the fresh air fan of the air conditioner in the fresh air dehumidification mode;

[0026] Figure 4 1. A flow chart of an embodiment of adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner under the first control logic in the fresh air dehumidification mode in the method of the present invention;

[0027] Figure 5 1. A flow chart of an embodiment of adjusting the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner under the second control logic in the fresh air dehumidification mode in the method of the present invention;

[0028] Figure 6 A schematic structural diagram of an embodiment of a control device for an air conditioner according to the present invention;

[0029] Figure 7 A dehumidification control logic diagram of an embodiment of a dehumidification control method for an air conditioner according to the present invention;

[0030] Figure 8 This is a logic diagram of auxiliary heat dehumidification control of an embodiment of a dehumidification control method for an air conditioner according to the present invention;

[0031] Figure 9 A logic diagram of fresh air dehumidification control according to an embodiment of a dehumidification control method for an air conditioner of the present invention;

[0032] Figure 10 A control logic diagram of a fresh air dehumidification control mode 1 of an embodiment of a dehumidification control method for an air conditioner according to the present invention;

[0033] Figure 11 This is a control logic diagram of a fresh air dehumidification control mode 2 of an embodiment of a dehumidification control method for an air conditioner of the present invention;

[0034] Figure 12 This is a control logic diagram of fresh air dehumidification control mode 3 of an embodiment of a dehumidification control method for an air conditioner of the present invention.

[0035] In conjunction with the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0036] 102 - acquisition unit; 104 - control unit. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Considering that when the air conditioner is operating in cooling mode, dehumidification control is achieved by reducing the internal fan speed. When the indoor ambient temperature is high, the air volume of the air conditioner decreases, slowing the indoor temperature drop. This will significantly reduce the indoor temperature drop and affect the user's comfort experience. At the same time, when the indoor ambient temperature is low, users are more sensitive to cold, and the air conditioner's air temperature is still low, which can easily cause user discomfort. In addition, with the development of technology and the improvement of people's living standards, air conditioners have the functions of fresh air and electric auxiliary heating in addition to dehumidification. Therefore, the solution of the present invention proposes a control method for an air conditioner, specifically a dehumidification control method for an air conditioner, by combining the fresh air function and the electric auxiliary heating function with the fresh air function, setting multiple dehumidification control modes such as a fresh air dehumidification control mode and an auxiliary heating dehumidification control mode. When the air conditioner is operating in the dehumidification mode, different dehumidification control modes are selected according to the different humidity of the indoor and outdoor environments. The fresh air dehumidification control mode is used to introduce outdoor dry fresh air, increase the air volume in the dehumidification mode, and accelerate the temperature drop to solve the problem that when the indoor ambient temperature is high, the indoor temperature drop rate is slow and the indoor temperature drop effect is greatly reduced. At the same time, the outdoor dry fresh air is mixed with the indoor humid air to reduce the indoor humidity, achieve rapid dehumidification, and achieve energy-saving effects. The auxiliary heating dehumidification control mode is used for auxiliary heating to avoid the discomfort problem caused by too low air outlet temperature, thereby improving the user's comfort experience when the air conditioner is operating in the dehumidification mode.

[0039] According to an embodiment of the present invention, a method for controlling an air conditioner is provided. Figure 1The flowchart of an embodiment of the method of the present invention is shown. The air conditioner comprises a heat exchange system, a fresh air system, and an electric auxiliary heating system. The heat exchange system can operate in a dehumidification mode, the fresh air system can operate in a fresh air mode, and the electric auxiliary heating system can operate in an electric auxiliary heating mode. When the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in a fresh air dehumidification mode. When the dehumidification mode and the electric auxiliary heating mode are operated together, the air conditioner can operate in an electric auxiliary heating dehumidification mode. The air conditioner control method includes steps S110 to S150.

[0040] At step S110, after the air conditioner enters the dehumidification mode, the indoor fan of the air conditioner is controlled to operate at a preset first initial speed, and the compressor of the air conditioner is controlled to operate at a preset initial frequency. The preset first initial speed may be an initial speed A, and the preset initial frequency may be an initial frequency F.

[0041] At step S120, the current indoor humidity of the air conditioner, the current outdoor humidity of the air conditioner, the current indoor temperature of the air conditioner, the current outdoor temperature of the air conditioner, the current air outlet temperature of the air conditioner, and the current auxiliary heating operation time of the electric auxiliary heating system when the electric auxiliary heating system is turned on are obtained. The current indoor humidity of the air conditioner is such as the indoor humidity RH of the air conditioner. 内环 , the current outdoor ambient humidity of the air conditioner is such as the outdoor ambient humidity RH of the air conditioner 外环 , the current indoor ambient temperature of the air conditioner is such as the indoor ambient temperature T 内环 The current outdoor ambient temperature of the air conditioner is such as the outdoor ambient temperature T 外环 The current air outlet temperature of the air conditioner is such as the air outlet temperature T 出风口 , and when the electric auxiliary heating system is turned on, obtain the current auxiliary heating operation time of the electric auxiliary heating system, such as the electric auxiliary heating operation time t 辅热运行时长 .

[0042] In step S130 , it is determined whether the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner.

[0043] At step S140, if it is determined that the current indoor humidity of the air conditioner is less than or equal to the current outdoor humidity of the air conditioner, then if the current indoor temperature of the air conditioner is greater than or equal to a preset indoor temperature, the air conditioner is controlled to maintain its current operating state. If the current indoor temperature of the air conditioner is less than the preset indoor temperature, the air conditioner is controlled to enter the auxiliary heating and dehumidification mode. In the auxiliary heating and dehumidification mode, the operation of the electric auxiliary heating system is adjusted based on the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system.

[0044] At step S150, if it is determined that the current indoor humidity of the air conditioner is greater than the current outdoor humidity of the air conditioner, the air conditioner is controlled to enter the fresh air dehumidification mode. In the fresh air dehumidification mode, at least one of the compressor frequency, the interior fan speed, and the fresh air fan speed of the air conditioner is adjusted based on the current indoor ambient temperature, the current outdoor ambient temperature, and the current air outlet temperature of the air conditioner.

[0045] Specifically, Figure 7 FIG. 1 is a dehumidification control logic diagram of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 7 The dehumidification control method of the air conditioner shown includes:

[0046] Step 11: With the air conditioner operating in the set dehumidification mode, control the air conditioner's indoor fan to operate at an initial speed A, and control the air conditioner's compressor to operate at an initial frequency F, and proceed to Step 12. The indoor fan speed A, in rpm, can range from 300 to 1500 rpm, preferably 700 rpm. The compressor frequency F, in Hz, can range from 10 to 110 rpm, preferably 46 Hz.

[0047] Step 12: Detect the indoor humidity RH of the air conditioner 内环 , outdoor ambient humidity RH of the air conditioner 外环 , then execute step 13. Wherein, the indoor environment humidity RH of the air conditioner 内环 , outdoor ambient humidity RH of the air conditioner 外环 , are the detection values ​​detected by the corresponding humidity sensors, the unit is %.

[0048] Step 13: Determine the indoor humidity RH of the air conditioner 内环 Is it greater than the outdoor ambient humidity RH of the air conditioner? 外环 :If yes, enter the fresh air dehumidification control mode, otherwise detect the indoor ambient temperature T of the air conditioner 内环, go to step 14. The indoor ambient temperature of the air conditioner is T 内环 , is the detection value detected by the indoor temperature sensor, the unit is ℃.

[0049] Step 14: Determine the indoor ambient temperature T of the air conditioner 内环 Is it lower than the indoor ambient temperature T? in1 :If yes, then enter the auxiliary heating and dehumidification control mode. Otherwise, maintain the current operating state and then return to step 12. Among them, the indoor environment preset temperature T in1 The unit is ℃, the value range is 10℃~30℃, and the preferred value is 16℃.

[0050] join Figure 7 In the example shown, through the control of steps 11 to 14, when the outdoor humidity (such as the outdoor ambient humidity RH of the air conditioner) 外环 ) is lower than the indoor humidity (such as the indoor ambient humidity RH of the air conditioner 内环 ), the outdoor fresh air is used for dehumidification. At the same time, the fresh air dehumidification control logic is used to achieve rapid temperature drop, rapid dehumidification and energy saving effects. When the outdoor humidity (such as the outdoor ambient humidity RH of the air conditioner) 外环 ) is higher than the indoor humidity (such as the indoor ambient humidity RH of the air conditioner 内环 ), and the indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) is lower than the preset temperature (such as the indoor environment preset temperature T in1 ), auxiliary heat dehumidification is used. Through the auxiliary heat dehumidification control logic, the outlet air temperature is increased to solve the discomfort caused by the low outlet air temperature. It can be seen that the solution of the present invention proposes an air conditioner control method. By setting multiple dehumidification control modes, such as the fresh air dehumidification control mode and the auxiliary heat dehumidification control mode, when the air conditioner is operating in dehumidification mode, different dehumidification control modes are selected according to the indoor and outdoor ambient humidity, thereby improving the user's comfort experience when the air conditioner is dehumidifying under different indoor and outdoor ambient humidity.

[0051] Specifically, in the solution of the present invention, when the air conditioner is operating in dehumidification mode, when the indoor ambient humidity is higher than the outdoor ambient humidity, it enters the fresh air dehumidification control mode. In the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed, and the compressor operating frequency are adjusted according to the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature, and the air outlet temperature to achieve the effects of rapid temperature drop, rapid dehumidification, and energy saving. In this way, by introducing dry outdoor fresh air, the air volume in the dehumidification mode is increased, and the temperature drop is accelerated. Mixing the dry outdoor fresh air with the indoor wet air can reduce the indoor humidity, achieve rapid dehumidification, and achieve energy saving. Thus, the problem of low air volume and slow dehumidification speed in the dehumidification mode during dehumidification control by reducing the internal fan speed is solved, and when the indoor ambient temperature is high, the indoor temperature drop rate is slow.

[0052] In the solution of the present invention, when the air conditioner is operating in dehumidification mode and the indoor humidity is not higher than the outdoor humidity, the indoor ambient temperature is detected. When the indoor ambient temperature falls below a preset indoor temperature, the air conditioner enters the auxiliary heating dehumidification control mode. In this auxiliary heating dehumidification control mode, the electric auxiliary heating switch is controlled based on the air outlet temperature and the duration of the electric auxiliary heating operation to provide auxiliary heating, effectively avoiding the discomfort caused by excessively low outlet air temperatures when the indoor ambient temperature is low. This solves the problem of low outlet air temperatures in dehumidification mode, which can easily cause discomfort when the indoor ambient temperature is low, during dehumidification control by reducing the internal fan speed.

[0053] In some embodiments, in step S140, in the auxiliary heating and dehumidification mode, the specific process of adjusting the operation process of the electric auxiliary heating system is combined with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system. See the following exemplary description.

[0054] The following combination Figure 2 FIG2 is a flow chart of an embodiment of adjusting the operation process of the electric auxiliary heating system in the auxiliary heating and dehumidification mode in the method of the present invention, further illustrating the specific process of adjusting the operation process of the electric auxiliary heating system in the auxiliary heating and dehumidification mode in step S140, including: steps S210 to S240.

[0055] Step S210 , in the auxiliary heating and dehumidification mode, determining whether the current air outlet temperature of the air conditioner is lower than a first preset air outlet temperature: if so, controlling the electric auxiliary heating system to be turned on; otherwise, controlling the air conditioner to maintain the current operating state.

[0056] Step S220, when the electric auxiliary heating system is turned on, determines whether the current auxiliary heating operation time of the electric auxiliary heating system is greater than the preset electric auxiliary heating operation time, and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature.

[0057] Step S230: If the condition is satisfied, the electric auxiliary heating system is controlled to be turned off, and then the process returns to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature.

[0058] Step S240: If not satisfied, control the air conditioner to maintain the current operating state.

[0059] Specifically, Figure 8 FIG. 1 is a logic diagram of auxiliary heat dehumidification control of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 8 The auxiliary heating and dehumidification control logic shown includes:

[0060] Step 21: When the air conditioner enters the auxiliary heating and dehumidification control mode, detect the air outlet temperature T of the air conditioner. 出风口 , then go to step 22. Air conditioner outlet temperature T 出风口 , is the detection value detected by the air outlet temperature sensor at the air outlet of the air conditioner, the unit is ℃.

[0061] Step 22: Determine the air outlet temperature T of the air conditioner 出风口 Is it lower than the first preset air outlet temperature T C1 If yes, execute step 23, otherwise maintain the current state. C1 , is the temperature at which the air outlet temperature of the air conditioner is low and begins to make people feel uncomfortable, the unit is ℃, the possible value range is 5~20℃, and the preferred value is 14℃.

[0062] Step 23: Turn on the electric auxiliary heating function of the air conditioner, such as turning on the control switch of the electric auxiliary heating element of the air conditioner, and then execute step 24.

[0063] Step 24: When the electric auxiliary heating function of the air conditioner is turned on, the operating time of the electric auxiliary heating element of the air conditioner is detected to obtain the electric auxiliary heating operating time t 辅热运行时长 , then go to step 25. Electric auxiliary heating operation time t 辅热运行时长 , is the detection value detected by the timer or timer, the unit is min.

[0064] Step 25: Determine the operating time of the electric auxiliary heating 辅热运行时长 Is it greater than the preset time t for electric auxiliary heating operation? f , and judge the air outlet temperature T of the air conditioner 出风口 Is it greater than the second preset air outlet temperature T C2 If yes, turn off the electric auxiliary heating function of the air conditioner and then return to step 21. Otherwise, maintain the current state unchanged and then return to step 21. The electric auxiliary heating operation time is the preset time t f , in min, with a range of 5 to 15 min, preferably 7°C. The second preset air outlet temperature T C2 , is the temperature at which the air outlet temperature is high and begins to make people feel uncomfortable, the unit is ℃, the possible value range is 10~25℃, and the preferred value is 20℃.

[0065] See also Figure 8 In the example shown, through steps 21 to 25, when the air outlet temperature (such as the air outlet temperature T 出风口 ) is too low, turn on the electric auxiliary heating. After turning on the electric auxiliary heating, the outlet temperature (such as the outlet temperature T 出风口) increases, and when it increases to an acceptable high outlet air temperature (such as the second preset outlet air temperature T C2 ), the electric auxiliary heating is turned off, thereby forming an electric auxiliary heating cycle switch state to achieve the purpose of maintaining the indoor air outlet temperature within a comfortable range. Among them, the shortest auxiliary heating operation time (such as the electric auxiliary heating operation time preset time t f ) limit to avoid the electric auxiliary heating from being turned on and off in a short period of time to ensure safety.

[0066] In some embodiments, in step S150, in the fresh air dehumidification mode, the specific process of adjusting at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner, and the fresh air fan speed of the air conditioner in combination with the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner, and the current air outlet temperature of the air conditioner is described in the following exemplary embodiments.

[0067] The following combination Figure 3 The method of the present invention is shown as a flow chart of an embodiment of adjusting at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner in the fresh air dehumidification mode, further illustrating the specific process of adjusting at least one of the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner in the fresh air dehumidification mode in step S150, including: steps S310 to S350.

[0068] Step S310: In the fresh air dehumidification mode, the fresh air damper of the fresh air system is controlled to open, and the fresh air fan of the fresh air system is controlled to operate at a preset second initial speed. The preset second initial speed is such as initial speed B.

[0069] Step S320: Determine the difference between the current indoor ambient temperature of the air conditioner and the target indoor ambient temperature of the air conditioner, and record it as the current indoor ambient temperature difference of the air conditioner. And determine whether the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, and determine whether the current indoor ambient temperature difference of the air conditioner is less than 0. The target indoor ambient temperature of the air conditioner is the indoor ambient temperature T set by the user. 设定 .

[0070] In step S330, if it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, the air conditioner is controlled to operate according to the first control logic in the fresh air dehumidification mode. Under the first control logic in the fresh air dehumidification mode, the compressor frequency and the fresh air fan speed of the air conditioner are adjusted based on the current indoor ambient temperature and the current outdoor ambient temperature of the air conditioner.

[0071] In step S340, if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and greater than 0, the air conditioner is controlled to operate according to the second control logic in the fresh air dehumidification mode. Under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner are adjusted based on the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner.

[0072] In step S350, if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, the air conditioner is controlled to operate according to the third control logic in the fresh air dehumidification mode. Under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner are adjusted.

[0073] Specifically, Figure 9 FIG. 1 is a logic diagram of fresh air dehumidification control of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 9 The fresh air dehumidification control logic shown includes:

[0074] Step 31: When the air conditioner enters the fresh air dehumidification control mode, the fresh air door of the air conditioner is opened to allow outdoor fresh air to enter the room, and the fresh air fan of the air conditioner is controlled to operate at an initial speed B. Then, step 32 is executed. The fresh air fan speed B is expressed in rpm and can range from 300 to 2000 rpm, preferably 1200 rpm.

[0075] Step 32: Detect the indoor ambient temperature T of the air conditioner. 内环 , and the user-set indoor ambient temperature T of the air conditioner 设定 , then execute step 33. The user sets the indoor ambient temperature T 设定 , the unit is ℃, usually the setting range is 16 ~ 30℃, this value is the detection value.

[0076] Step 33: Determine the indoor ambient temperature T of the air conditioner 内环 The user sets the indoor ambient temperature T 设定 The indoor ambient temperature difference T 内环 -T 设定 , judge the indoor ambient temperature difference T 内环 -T 设定 Is it greater than the preset temperature difference ΔT, and judge the indoor environment temperature difference T 内环 -T 设定Is it less than 0? The corresponding steps in step 34, step 35 and step 36 are executed according to the judgment result. The preset temperature difference ΔT is in °C and can be in the range of 0 to 10 °C, preferably 5 °C.

[0077] Step 34: If the indoor temperature difference T 内环 -T 设定 > preset temperature difference ΔT, enter fresh air dehumidification control mode 1, and then return to step 32.

[0078] Step 35: If the preset temperature difference ΔT ≥ indoor ambient temperature difference T 内环 -T 设定 >0, enter fresh air dehumidification control mode 2 and then return to step 32.

[0079] Step 36: If the indoor temperature difference T 内环 -T 设定 ≤0, enter fresh air dehumidification control mode 3 and then return to step 32.

[0080] See also Figure 9 In the example shown, through steps 31 to 36, when the air conditioner enters the fresh air dehumidification control, the outdoor fresh air is introduced into the room to perform auxiliary dehumidification. 内环 -T 设定 > preset temperature difference ΔT, indicating the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) is higher than the user's desired temperature (such as the user-set indoor ambient temperature T 设定 ) is large, so it is necessary to reduce the temperature while dehumidifying, and to ensure the temperature reduction effect. At this time, enter the fresh air dehumidification control mode 1. When the preset temperature difference ΔT ≥ indoor ambient temperature difference T 内环 -T 设定 >0, indicating the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) has not reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), but the difference is small, so the main consideration is the comfort of the air outlet temperature. At this time, the fresh air dehumidification control mode 2 is entered. When the indoor ambient temperature difference T 内环 -T 设定 When ≤0, it indicates the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) has reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), this is mainly for energy saving consideration. At this time, enter the fresh air dehumidification control mode three.

[0081] In some embodiments, under the first control logic in the fresh air dehumidification mode, the specific process of adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner is described in the following exemplary embodiment.

[0082] The following combination Figure 4 The flowchart of an embodiment of adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner under the first control logic in the fresh air dehumidification mode in the method of the present invention further illustrates the specific process of adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner under the first control logic in the fresh air dehumidification mode in step S330, including: steps S410 to S430.

[0083] Step S410, under the first control logic in the fresh air dehumidification mode, determines whether the current indoor ambient temperature of the air conditioner is greater than a preset indoor ambient temperature for a continuous set period of time. If not, the air conditioner is controlled to maintain its current operating state. If so, the compressor frequency of the air conditioner is increased by a first set frequency amplitude until the compressor frequency reaches a set maximum frequency. It is then determined whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner. The first set frequency amplitude may be, for example, the compressor operating frequency adjustment value λ1.

[0084] In step S420, if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then if the current indoor ambient temperature of the air conditioner is not greater than the preset indoor comfort temperature for a continuous set time, the air conditioner is controlled to maintain its current operating state. If the current indoor ambient temperature of the air conditioner is greater than the preset indoor comfort temperature for a continuous set time, the air conditioner's fresh air fan speed is reduced by a first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to a set minimum speed. If the current indoor ambient temperature of the air conditioner is still greater than the preset indoor comfort temperature for a continuous set time, the fresh air fan of the fresh air system is controlled to shut down and the fresh air damper of the fresh air system is controlled to close. If the current indoor ambient temperature of the air conditioner is not greater than the preset indoor comfort temperature for a continuous set time, the air conditioner is controlled to maintain its current operating state. The first set speed amplitude is such as the fresh air fan speed adjustment value β.

[0085] Step S430: If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current indoor ambient temperature of the air conditioner is not greater than the preset indoor ambient comfort temperature for a continuous set time, the air conditioner is controlled to maintain the current operating state. If the current indoor ambient temperature of the air conditioner is greater than the preset indoor ambient comfort temperature for a continuous set time, the air conditioner's fresh air fan speed is increased by a first set speed increment until the fresh air fan speed of the air conditioner reaches a set maximum speed, and then the air conditioner is controlled to maintain the current operating state.

[0086] Specifically, Figure 10 FIG1 is a control logic diagram of a fresh air dehumidification control mode of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 10 The fresh air dehumidification control mode 1 control logic shown includes:

[0087] Step 41 : Control the air conditioner to enter fresh air dehumidification control mode 1, and then execute step 42 .

[0088] Step 42: Detect the indoor ambient temperature T of the air conditioner. 内环 , and judge whether the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 :If yes, that is, if the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , then execute step 43. Otherwise, that is, the indoor environment temperature T of the air conditioner is not satisfied for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 , then maintain the current operating state unchanged, and then return to step 42. Among them, the indoor environment preset comfortable temperature T in2 , the unit is ℃, the value range is 20~35℃, and the preferred value is 27℃.

[0089] Step 43: When the indoor ambient temperature of the air conditioner is satisfied for 10 consecutive minutes, 内环 >Indoor environment preset comfortable temperature T in2 In the case of , the compressor frequency F is adjusted to the frequency F+λ1, and then it is determined whether the compressor frequency F has been adjusted to the maximum frequency F max :If yes, then the indoor ambient temperature T of the air conditioner is still satisfied for 10 minutes continuously 内环 >Indoor environment preset comfortable temperature T in2 If , go to step 44. Otherwise, return to step 42. maxThe upper limit of the allowable operating frequency of the compressor is in Hz, and the preferred value is 64 Hz. λ1 is the adjustment value of the compressor operating frequency, in Hz, λ1 = max{|T 内环 -T 设定 |,|T 内环 -T in2 |}, that is, λ1 takes the larger of the difference between the inner loop and the set temperature, and the difference between the inner loop and the comfortable temperature. The larger the temperature difference, the more cooling capacity is required, the more frequent the increase, and the better the cooling effect. Of course, if the indoor ambient temperature T of the air conditioner is not met for 10 consecutive minutes, 内环 >Indoor environment preset comfortable temperature T in2 , then maintain the current operating state. If the indoor ambient temperature of the air conditioner does not meet T for 10 consecutive minutes, 内环 >Indoor environment preset comfortable temperature T in2 , which means that the inner ring temperature has reached the comfortable temperature and no further adjustment is required through frequency, speed, etc.

[0090] Here, when the indoor ambient temperature T of the air conditioner is not satisfied for 10 consecutive minutes for the first time 内环 >Indoor environment preset comfortable temperature T in2 When the frequency is increased to F+λ1, the actual operating frequency F=F+λ1. If the frequency does not reach the upper frequency limit F after the frequency is increased, max , indicating that the inner ring temperature can be lowered by increasing the compressor frequency to meet the indoor ambient temperature T of the air conditioner for 10 minutes. 内环 >Indoor environment preset comfortable temperature T in2 , so the compressor frequency F has not yet been adjusted to the maximum frequency F max When the temperature is T, the second test is returned to see if the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 If not, maintain the current operating state (if not satisfied, it means that the inner loop has reached the comfortable temperature and no further adjustment is required through frequency, speed, etc.); if satisfied, increase the frequency by λ1 again (this time compared with the first frequency F, it is increased by 2λ1, and the current actual operating frequency is F+2λ1). After the increase, return to the third test to see if the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 , and so on. If the condition is always met, the frequency is continuously increased until the frequency reaches the upper limit and cannot be increased any further. Then, the process proceeds to step 44 to adjust the indoor temperature by adjusting the fresh air fan speed B. If the condition is no longer met after a frequency increase, the current operating state is maintained.

[0091] Step 44: Detect the outdoor ambient temperature T of the air conditioner.外环 , to determine whether the outdoor ambient temperature T of the air conditioner is met 外环 >Indoor ambient temperature of air conditioner T 内环 , and judge whether the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , execute the corresponding steps in step 45, step 46 and step 47 according to the judgment result. 外环 , the unit is ℃, which is the detection value detected by the outdoor temperature sensing package.

[0092] Step 45: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and does not meet the indoor ambient temperature T of the air conditioner for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , the current running state remains unchanged.

[0093] Step 46: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the indoor ambient temperature of the air conditioner is kept constant for 10 minutes. 内环 >Indoor environment preset comfortable temperature T in2 , then adjust the speed B of the fresh air fan to speed B-β. If the speed B is adjusted to the minimum speed B min , and still meet the indoor ambient temperature T of the air conditioner for 10 minutes 内环 >Indoor environment preset comfortable temperature T in2 , then the fresh air fan stops running and closes the fresh air damper. Wherein, β is the fresh air fan speed adjustment value, the unit is rpm. The larger β is, the greater the speed increase / decrease is, and the fresh air volume is larger / smaller. The preferred value is 100rpm. B min The lower limit of the allowable operating speed of the fresh air fan is rpm, and the preferred value is 300rpm.

[0094] Step 47: If the outdoor ambient temperature T 外环 >Indoor ambient temperature of air conditioner T 内环 , then execute step 48.

[0095] Step 48: If the indoor ambient temperature T of the air conditioner is not satisfied for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , the current operating state is maintained. If the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes, T 内环 >Indoor environment preset comfortable temperature Tin2 , then adjust the fresh air fan speed B to B+β. If B is adjusted to the maximum speed B max , and still meet the indoor ambient temperature T of the air conditioner for 10 minutes 内环 >Indoor environment preset comfortable temperature T in2 , then the current operating state remains unchanged. Among them, B max The upper limit of the fresh air fan's operating speed is in rpm, preferably 2000rpm. Of course, if the fresh air fan speed B has been adjusted to the maximum speed B max , there is no need to judge the indoor ambient temperature T of the air conditioner for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , directly maintain the current state unchanged; does not satisfy B=B max When the temperature reaches T, it returns to the previous step to determine whether the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 .

[0096] Here, if B=B max , then maintain the current operating state unchanged; if B=B max , then return to the second test to see if the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 If not satisfied, maintain the current operating state (if not satisfied, it means that the inner ring temperature has reached the comfortable temperature and no further adjustment is required through the speed, etc.); if satisfied, increase the speed by β again (this time compared with the first fresh air fan speed B, it is increased by 2β, and the current actual speed B=B+2β). After the increase, return to the third test to see if the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 , and repeat this process. If the requirements are no longer met after one of the speed increases, the current operating state is maintained. If the requirements are always met, the speed is continuously increased until the speed reaches the upper limit and cannot be increased any further, and the current operating state is maintained (because the adjustment means have been used up, the current state is maintained).

[0097] See also Figure 10 In the example shown, through steps 41 to 48, the fresh air dehumidification control mode 1 needs to reduce the temperature while dehumidifying, and the main purpose is to ensure the temperature reduction effect. 内环 >Indoor environment preset comfortable temperature T in2 When the current indoor ambient temperature (such as the indoor ambient temperature T 内环) has reached the preset comfortable temperature of the indoor environment (such as the preset comfortable temperature of the indoor environment T in2 ), even if the current temperature (such as the indoor ambient temperature T 内环 ) and the user-set temperature (such as the user-set indoor ambient temperature T 设定 ) is quite different, but because the indoor temperature has reached a comfortable temperature, the demand for temperature reduction effect is smaller, so the current operating state is maintained and the compressor frequency is not increased to achieve energy saving. When the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 When the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) is higher than the preset comfort temperature of the indoor environment (such as the preset comfort temperature of the indoor environment T in2 ), rapid cooling is required, so the compressor frequency is increased first to achieve rapid cooling. If the compressor frequency is increased to the upper limit of the allowable operating frequency, the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) is still higher than the preset comfort temperature of the indoor environment (such as the preset comfort temperature of the indoor environment T in2 ), then when the outdoor ambient temperature (such as the outdoor ambient temperature of the air conditioner T 外环 ) is higher than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ), by reducing the speed of the fresh air fan (to the lowest speed that the fresh air fan can use or turning off the fresh air), the amount of fresh air entering the room from the outside is reduced, the indoor load is reduced, and the temperature is cooled faster. When the outdoor ambient temperature (such as the outdoor ambient temperature of the air conditioner T 外环 ) is lower than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ) when the temperature is too low, the speed of the fresh air fan is increased (up to the maximum speed that the fresh air fan can use) to increase the amount of fresh air entering the room from the outside, increase the air volume out, and assist in cooling.

[0098] In some embodiments, in step S340, under the second control logic in the fresh air dehumidification mode, the specific process of adjusting the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner is described in the following exemplary embodiment.

[0099] The following combination Figure 5The method of the present invention is shown as a flow chart of an embodiment of adjusting the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner under the second control logic in the fresh air dehumidification mode, further illustrating the specific process of adjusting the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner under the second control logic in the fresh air dehumidification mode in step S340, including: steps S510 to S540.

[0100] Step S510, under the second control logic in the fresh air dehumidification mode, determines whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time. If not, the air conditioner is controlled to maintain the current operating state. If so, the compressor frequency of the air conditioner is reduced by a second set frequency amplitude until the compressor frequency of the air conditioner is reduced to the set minimum frequency. If the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature for a continuous set time, the air conditioner is controlled to maintain the current operating state. If the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature for a continuous set time, the internal fan speed of the air conditioner is increased by a second set speed amplitude. The second set frequency amplitude is such as the compressor operating frequency adjustment value λ2. The second set speed amplitude is such as the fan speed adjustment value α.

[0101] Step S520, when the internal fan speed of the air conditioner is increased according to the second set speed amplitude, if the internal fan speed of the air conditioner has increased to the set maximum speed, determine whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner.

[0102] Step S530: If it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then if the current air outlet temperature of the air conditioner is not less than a first preset air outlet temperature for a set continuous time, the air conditioner is controlled to maintain the current operating state. If the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a set continuous time, the air conditioner's fresh air fan speed is increased by a first set speed increment until the fresh air fan speed of the air conditioner reaches a set maximum speed, and then the air conditioner is controlled to maintain the current operating state.

[0103] Step S540: If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current air outlet temperature of the air conditioner is not less than a first preset air outlet temperature within a set continuous time, the air conditioner is controlled to maintain its current operating state. If the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature within a set continuous time, the air conditioner's fresh air fan speed is reduced by a first set speed increment until the air conditioner's fresh air fan speed is reduced to a set minimum speed. If the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature within a set continuous time, the fresh air fan of the fresh air system is controlled to stop, and the fresh air damper of the fresh air system is controlled to close. If the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within a set continuous time, the air conditioner is controlled to maintain its current operating state.

[0104] Specifically, Figure 11 FIG. 1 is a control logic diagram of fresh air dehumidification control mode 2 of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 11 The control logic of fresh air dehumidification control mode 2 shown includes:

[0105] Step 51 : Control the air conditioner to enter fresh air dehumidification control mode 2, and then execute step 52 .

[0106] Step 52: Detect the air outlet temperature T of the air conditioner 出风口 , and judge whether the air outlet temperature of the air conditioner T is met for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 :If the air outlet temperature of the air conditioner does not meet T for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , the current operating state is maintained. If the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1 , then execute step 53.

[0107] Step 53: Adjust the compressor frequency F to F-λ2, and determine whether the compressor frequency F has been adjusted to the lowest frequency F. min :If the compressor frequency F is adjusted to the lowest frequency F min After that, if the air outlet temperature of the air conditioner is not satisfied for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1 The current operating state is maintained unchanged. If the air outlet temperature T of the air conditioner is still satisfied for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1, then adjust the internal fan speed A to A+α. If the internal fan speed A is adjusted to the maximum speed A max After that, the air outlet temperature of the air conditioner is still satisfied for 10 minutes continuously. 出风口 <First preset air outlet temperature T C1 , then proceed to step 54. Wherein, α is the internal fan speed adjustment value, the unit is rpm, the larger α is, the higher the speed is, the larger the air volume is, and the higher the outlet temperature is. The preferred value is 100rpm. max The upper limit of the allowed operating speed of the internal fan is in rpm, and the preferred value is 1500rpm. min The lower limit of the compressor's allowable operating frequency is in Hz, and the preferred value is 28 Hz. λ2 is the compressor's operating frequency adjustment value in Hz, λ2 = T 内环 -T 设定 , that is, λ2 takes the temperature difference between the inner ring and the set temperature. When the temperature difference is large, the frequency is reduced more, and when the temperature difference is small, the frequency is reduced less, so that it will not be unable to maintain a comfortable indoor temperature due to rapid frequency reduction. Of course, if the internal fan speed A has been adjusted to the maximum speed A max , there is no need to judge the condition that the air outlet temperature of the air conditioner is met for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , directly maintain the current state unchanged; does not satisfy A=A max When the temperature reaches T, it returns to the previous step to determine whether the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes. 出风口 <First preset air outlet temperature T C1 .

[0108] Step 54: Detect the outdoor ambient temperature T of the air conditioner. 外环 , and judge whether the outdoor environment temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , execute the corresponding steps in step 55, step 56 and step 57 according to the judgment result.

[0109] Step 55: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the air outlet temperature of the air conditioner does not meet T for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , the current running state remains unchanged.

[0110] Step 56: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the air outlet temperature of the air conditioner is kept constant for 10 minutes. 出风口<First preset air outlet temperature T C1 , then adjust the fresh air fan speed B to B+β. If the fresh air fan speed B is adjusted to the maximum speed B max After that, the air outlet temperature of the air conditioner is still satisfied for 10 minutes continuously. 出风口 <First preset air outlet temperature T C1 , then maintain the current operating state unchanged. Of course, if B has been adjusted to the highest speed B max , there is no need to judge the condition that the air outlet temperature of the air conditioner is met for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , directly maintain the current state unchanged; does not satisfy B=B max When the temperature reaches T, it returns to the previous step to determine whether the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes. 出风口 <First preset air outlet temperature T C1 .

[0111] Step 57: If the outdoor ambient temperature T 外环 >Indoor ambient temperature of air conditioner T 内环 , then proceed to step 58.

[0112] Step 58: If the air outlet temperature of the air conditioner does not meet the requirement for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1 , the current operating state is maintained. If the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1 , then adjust the fresh air fan speed B to B-β. If B is adjusted to the minimum speed B min , the air outlet temperature of the air conditioner is still maintained at T for 10 minutes. 出风口 <First preset air outlet temperature T C1 , then stop the fresh air fan and close the fresh air damper.

[0113] See also Figure 11 In the example shown, through steps 51 to 58, the fresh air dehumidification control mode 2 is mainly based on the consideration of the outlet temperature comfort. 出风口 <First preset air outlet temperature T C1 When the temperature of the air outlet is T 出风口 ) is appropriate and maintains the current operating status.

[0114] When the air outlet temperature of the air conditioner is met for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1, it indicates the current air outlet temperature (such as the air outlet temperature T 出风口 ) is too low and uncomfortable, so the outlet temperature needs to be increased (such as the outlet temperature T 出风口 ). Increase the air outlet temperature (such as the air outlet temperature T of the air conditioner). 出风口 ), give priority to reducing the compressor frequency to increase the outlet temperature (such as the air outlet temperature T 出风口 ) effect, and at the same time, the compressor frequency is reduced, which can achieve energy saving. If the compressor frequency is reduced to the lower limit of the allowable operating frequency, the current outlet temperature (such as the air conditioner outlet temperature T 出风口 ) is still too low, increase the internal fan speed, increase the air volume, and increase the air outlet temperature (such as the air outlet temperature T 出风口 If the internal fan speed is increased to the upper limit of the allowable operating speed, the current air outlet temperature (such as the air outlet temperature T 出风口 ) is still too low, then when the outdoor ambient temperature (such as the outdoor ambient temperature T 外环 ) is higher than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ), by increasing the speed of the fresh air fan (up to the maximum speed that the fresh air fan can use), the amount of fresh air entering the room from the outside is increased, and the outlet air temperature is increased. When the outdoor ambient temperature (such as the outdoor ambient temperature T 外环 ) is lower than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ) by reducing the speed of the fresh air fan (to the lowest speed that the fresh air fan can use or turning off the fresh air) to reduce the amount of fresh air entering the room from the outside and increase the outlet temperature (such as the outlet temperature T 出风口 ).

[0115] In some embodiments, in step S350, under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted, including: under the third control logic in the fresh air dehumidification mode, controlling the compressor of the air conditioner to stop, controlling the internal fan speed of the air conditioner to maintain the current speed, and controlling the fresh air fan speed of the air conditioner to maintain the current speed.

[0116] Specifically, Figure 12 FIG. 1 is a control logic diagram of fresh air dehumidification control mode 3 of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 12 As shown, the three control logics of fresh air dehumidification control mode include:

[0117] Step 61: Control the air conditioner to enter fresh air dehumidification control mode 3, and then execute step 62.

[0118] Step 62: Stop the compressor and maintain the current operating speed of the indoor fan and the fresh air fan.

[0119] See also Figure 12 In the example shown, fresh air dehumidification control mode 3 is mainly based on energy saving. In this case, the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) has reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), the compressor stops running, and outdoor dry air is introduced for dehumidification, with only the fan running to achieve energy-saving effect.

[0120] The present invention addresses the issues of slow indoor temperature drop rates leading to low cooling efficiency when the indoor temperature is high during dehumidification, or user discomfort caused by low outlet air temperatures when the indoor temperature is low during dehumidification. By monitoring parameters such as the indoor ambient temperature, outdoor ambient temperature, indoor set temperature, air outlet temperature, and the duration of electric auxiliary heating operation, the air conditioner adjusts the internal fan speed, fresh air fan speed, compressor operating frequency, and the electric auxiliary heating switch. Specifically, when the air conditioner is operating in dehumidification mode, if the indoor ambient humidity is higher than the outdoor humidity, it enters fresh air dehumidification control. The internal fan speed, fresh air fan speed, and compressor operating frequency are adjusted based on the indoor ambient temperature, outdoor ambient temperature, indoor set temperature, and air outlet temperature, achieving rapid temperature drop, rapid dehumidification, and energy savings. Otherwise, the air conditioner monitors the indoor ambient temperature. If the indoor ambient temperature falls below the preset indoor ambient temperature, it enters auxiliary heating dehumidification control. The electric auxiliary heating switch is controlled based on the air outlet temperature and the duration of electric auxiliary heating operation. This avoids discomfort caused by excessively low outlet air temperatures when the indoor ambient temperature is low, thereby improving user comfort.

[0121] The technical solution of this embodiment is adopted by setting a fresh air dehumidification control mode and an auxiliary heat dehumidification control mode in the air conditioner's dehumidification mode. When the air conditioner is in dehumidification mode and the indoor ambient humidity is higher than the outdoor ambient humidity, the fresh air dehumidification control mode is entered. In the fresh air dehumidification control mode, the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature, and the air outlet temperature are used to adjust the internal fan speed, the fresh air fan speed, and the compressor operating frequency to achieve rapid dehumidification and avoid temperature drops. When the indoor ambient humidity is not higher than the outdoor ambient humidity, the indoor ambient temperature is detected. When the indoor ambient temperature is lower than the preset indoor ambient temperature, the auxiliary heat dehumidification control mode is entered. In the auxiliary heat dehumidification control mode, the electric auxiliary heat switch is controlled based on the air outlet temperature and the electric auxiliary heat operating time to provide auxiliary heating, thereby avoiding triggering a temperature drop when the indoor ambient temperature is low. Therefore, by setting the fresh air dehumidification control mode and the auxiliary heating dehumidification control mode in the dehumidification mode of the air conditioner, when the air conditioner is running in the dehumidification mode, it enters the fresh air dehumidification control mode when the indoor ambient humidity is higher than the outdoor ambient humidity, and enters the auxiliary heating dehumidification control mode when the indoor ambient humidity is not higher than the outdoor ambient humidity and the indoor ambient temperature is low, thereby improving the user's comfort experience when the air conditioner is running in the dehumidification mode under different indoor and outdoor ambient humidity.

[0122] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for the air conditioner is also provided. Figure 6 The figure shows a schematic structural diagram of an embodiment of the device of the present invention. The air conditioner comprises a heat exchange system, a fresh air system, and an electric auxiliary heating system. The heat exchange system can operate in a dehumidification mode, the fresh air system can operate in a fresh air mode, and the electric auxiliary heating system can operate in an electric auxiliary heating mode. When the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in a fresh air dehumidification mode. When the dehumidification mode and the electric auxiliary heating mode are operated together, the air conditioner can operate in an electric auxiliary heating dehumidification mode. The air conditioner control device comprises an acquisition unit 102 and a control unit 104.

[0123] The control unit 104 is configured to, after the air conditioner enters the dehumidification mode, control the air conditioner's indoor fan to operate at a preset first initial speed and control the air conditioner's compressor to operate at a preset initial frequency. The preset first initial speed may be, for example, initial speed A, and the preset initial frequency may be, for example, initial frequency F. The specific functions and processing of the control unit 104 are described in step S110.

[0124] The acquisition unit 102 is configured to acquire the current indoor ambient humidity of the air conditioner, the current outdoor ambient humidity of the air conditioner, the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner, the current air outlet temperature of the air conditioner, and the current auxiliary heating operation time of the electric auxiliary heating system when the electric auxiliary heating system is turned on. The current indoor ambient humidity of the air conditioner is such as the indoor ambient humidity RH of the air conditioner. 内环 , the current outdoor ambient humidity of the air conditioner is such as the outdoor ambient humidity RH of the air conditioner 外环 , the current indoor ambient temperature of the air conditioner is such as the indoor ambient temperature T 内环 The current outdoor ambient temperature of the air conditioner is such as the outdoor ambient temperature T 外环 The current air outlet temperature of the air conditioner is such as the air outlet temperature T 出风口 , and when the electric auxiliary heating system is turned on, obtain the current auxiliary heating operation time of the electric auxiliary heating system, such as the electric auxiliary heating operation time t 辅热运行时长 The specific functions and processing of the acquisition unit 102 are shown in step S120.

[0125] The control unit 104 is further configured to determine whether the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner. The specific functions and processing of the control unit 104 are also shown in step S130.

[0126] The control unit 104 is further configured to, if it is determined that the current indoor humidity of the air conditioner is less than or equal to the current outdoor humidity of the air conditioner, control the air conditioner to maintain its current operating state if the current indoor temperature of the air conditioner is greater than or equal to a preset indoor temperature. If the current indoor temperature of the air conditioner is less than the preset indoor temperature, control the air conditioner to enter the auxiliary heating and dehumidification mode. In the auxiliary heating and dehumidification mode, the operation of the electric auxiliary heating system is adjusted based on the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system. The specific functions and processing of the control unit 104 are further described in step S140.

[0127] The control unit 104 is further configured to control the air conditioner to enter the fresh air dehumidification mode if it determines that the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner. In the fresh air dehumidification mode, the control unit 104 adjusts at least one of the air conditioner's compressor frequency, the air conditioner's internal fan speed, and the air conditioner's fresh air fan speed based on the air conditioner's current indoor ambient temperature, the air conditioner's current outdoor ambient temperature, and the air conditioner's current air outlet temperature. The specific functions and processing of the control unit 104 are further described in step S150.

[0128] Specifically, Figure 7 FIG. 1 is a dehumidification control logic diagram of an embodiment of an air conditioner dehumidification control device of the present invention. Figure 7 The dehumidification control device of the air conditioner shown includes:

[0129] Step 11: With the air conditioner operating in the set dehumidification mode, control the air conditioner's indoor fan to operate at an initial speed A, and control the air conditioner's compressor to operate at an initial frequency F, and proceed to Step 12. The indoor fan speed A, in rpm, can range from 300 to 1500 rpm, preferably 700 rpm. The compressor frequency F, in Hz, can range from 10 to 110 rpm, preferably 46 Hz.

[0130] Step 12: Detect the indoor humidity RH of the air conditioner 内环 , outdoor ambient humidity RH of the air conditioner 外环 , then execute step 13. Wherein, the indoor environment humidity RH of the air conditioner 内环 , outdoor ambient humidity RH of the air conditioner 外环 , are the detection values ​​detected by the corresponding humidity sensors, the unit is %.

[0131] Step 13: Determine the indoor humidity RH of the air conditioner 内环 Is it greater than the outdoor ambient humidity RH of the air conditioner? 外环 :If yes, enter the fresh air dehumidification control mode, otherwise detect the indoor ambient temperature T of the air conditioner 内环 , go to step 14. The indoor ambient temperature of the air conditioner is T 内环 , is the detection value detected by the indoor temperature sensor, the unit is ℃.

[0132] Step 14: Determine the indoor ambient temperature T of the air conditioner 内环 Is it lower than the indoor ambient temperature T? in1 :If yes, then enter the auxiliary heating and dehumidification control mode. Otherwise, maintain the current operating state and then return to step 12. Among them, the indoor environment preset temperature T in1The unit is ℃, the value range is 10℃~30℃, and the preferred value is 16℃.

[0133] join Figure 7 In the example shown, through the control of steps 11 to 14, when the outdoor humidity (such as the outdoor ambient humidity RH of the air conditioner) 外环 ) is lower than the indoor humidity (such as the indoor ambient humidity RH of the air conditioner 内环 ), the outdoor fresh air is used for dehumidification. At the same time, the fresh air dehumidification control logic is used to achieve rapid temperature drop, rapid dehumidification and energy saving effects. When the outdoor humidity (such as the outdoor ambient humidity RH of the air conditioner) 外环 ) is higher than the indoor humidity (such as the indoor ambient humidity RH of the air conditioner 内环 ), and the indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) is lower than the preset temperature (such as the indoor environment preset temperature T in1 ), auxiliary heat dehumidification is used. Through the auxiliary heat dehumidification control logic, the outlet air temperature is increased to solve the discomfort caused by the low outlet air temperature. Thus, the air conditioner control device proposed in the solution of the present invention sets multiple dehumidification control modes, such as the fresh air dehumidification control mode and the auxiliary heat dehumidification control mode. When the air conditioner is operating in dehumidification mode, different dehumidification control modes are selected according to the indoor and outdoor ambient humidity, thereby improving the user's comfort experience when the air conditioner is dehumidifying under different indoor and outdoor ambient humidity conditions.

[0134] Specifically, in the solution of the present invention, when the air conditioner is operating in dehumidification mode, when the indoor ambient humidity is higher than the outdoor ambient humidity, it enters the fresh air dehumidification control mode. In the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed, and the compressor operating frequency are adjusted according to the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature, and the air outlet temperature to achieve the effects of rapid temperature drop, rapid dehumidification, and energy saving. In this way, by introducing dry outdoor fresh air, the air volume in the dehumidification mode is increased, and the temperature drop is accelerated. Mixing the dry outdoor fresh air with the indoor wet air can reduce the indoor humidity, achieve rapid dehumidification, and achieve energy saving. Thus, the problem of low air volume and slow dehumidification speed in the dehumidification mode during dehumidification control by reducing the internal fan speed is solved, and when the indoor ambient temperature is high, the indoor temperature drop rate is slow.

[0135] In the solution of the present invention, when the air conditioner is operating in dehumidification mode and the indoor humidity is not higher than the outdoor humidity, the indoor ambient temperature is detected. When the indoor ambient temperature falls below a preset indoor temperature, the air conditioner enters the auxiliary heating dehumidification control mode. In this auxiliary heating dehumidification mode, the electric auxiliary heating switch is controlled based on the air outlet temperature and the duration of the electric auxiliary heating operation to provide auxiliary heating, effectively avoiding the discomfort caused by excessively low outlet air temperatures when the indoor ambient temperature is low. This solves the problem of low outlet air temperatures in dehumidification mode, which can easily cause discomfort when the indoor ambient temperature is low, during dehumidification control by reducing the internal fan speed.

[0136] In some embodiments, the control unit 104 adjusts the operation process of the electric auxiliary heating system in the auxiliary heating and dehumidification mode based on the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system, including:

[0137] The control unit 104 is further configured to determine, in the auxiliary heating and dehumidification mode, whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature. If so, the control unit 104 is configured to activate the electric auxiliary heating system. Otherwise, the control unit 104 is configured to maintain the current operating state. The specific functions and processing of the control unit 104 are further described in step S210.

[0138] The control unit 104 is further configured to, when the electric auxiliary heating system is on, determine whether the current auxiliary heating operation duration of the electric auxiliary heating system is greater than a preset auxiliary heating operation duration, and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature. The specific functions and processing of the control unit 104 are further described in step S220.

[0139] The control unit 104 is further configured to control the electric auxiliary heating system to shut down if the condition is satisfied, and then return to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature. The specific functions and processing of the control unit 104 are also shown in step S230.

[0140] The control unit 104 is further configured to control the air conditioner to maintain the current operating state if the condition is not satisfied. The specific functions and processing of the control unit 104 are further described in step S240.

[0141] Specifically, Figure 8 FIG. 1 is a logic diagram of auxiliary heat dehumidification control of an embodiment of an air conditioner dehumidification control device of the present invention. Figure 8 The auxiliary heating and dehumidification control logic shown includes:

[0142] Step 21: When the air conditioner enters the auxiliary heating and dehumidification control mode, detect the air outlet temperature T of the air conditioner. 出风口 , then go to step 22. Air conditioner outlet temperature T 出风口 , is the detection value detected by the air outlet temperature sensor at the air outlet of the air conditioner, the unit is ℃.

[0143] Step 22: Determine the air outlet temperature T of the air conditioner 出风口 Is it lower than the first preset air outlet temperature T C1 If yes, execute step 23, otherwise maintain the current state. C1 , is the temperature at which the air outlet temperature of the air conditioner is low and begins to make people feel uncomfortable, the unit is ℃, the possible value range is 5~20℃, and the preferred value is 14℃.

[0144] Step 23: Turn on the electric auxiliary heating function of the air conditioner, such as turning on the control switch of the electric auxiliary heating element of the air conditioner, and then execute step 24.

[0145] Step 24: When the electric auxiliary heating function of the air conditioner is turned on, the operating time of the electric auxiliary heating element of the air conditioner is detected to obtain the electric auxiliary heating operating time t 辅热运行时长 , then go to step 25. Electric auxiliary heating operation time t 辅热运行时长 , is the detection value detected by the timer or timer, the unit is min.

[0146] Step 25: Determine the operating time of the electric auxiliary heating 辅热运行时长 Is it greater than the preset time t for electric auxiliary heating operation? f , and judge the air outlet temperature T of the air conditioner 出风口 Is it greater than the second preset air outlet temperature T C2 If yes, turn off the electric auxiliary heating function of the air conditioner and then return to step 21. Otherwise, maintain the current state unchanged and then return to step 21. The electric auxiliary heating operation time is the preset time t f , in min, with a range of 5 to 15 min, preferably 7°C. The second preset air outlet temperature T C2 , is the temperature at which the air outlet temperature is high and begins to make people feel uncomfortable, the unit is ℃, the possible value range is 10~25℃, and the preferred value is 20℃.

[0147] See also Figure 8 In the example shown, through steps 21 to 25, when the air outlet temperature (such as the air outlet temperature T 出风口 ) is too low, turn on the electric auxiliary heating. After turning on the electric auxiliary heating, the outlet temperature (such as the outlet temperature T 出风口 ) increases, and when it increases to an acceptable high outlet air temperature (such as the second preset outlet air temperature T C2), the electric auxiliary heating is turned off, thereby forming an electric auxiliary heating cycle switch state to achieve the purpose of maintaining the indoor air outlet temperature within a comfortable range. Among them, the shortest auxiliary heating operation time (such as the electric auxiliary heating operation time preset time t f ) limit to avoid the electric auxiliary heating from being turned on and off in a short period of time to ensure safety.

[0148] In some embodiments, the control unit 104 adjusts at least one of the compressor frequency of the air conditioner, the interior fan speed of the air conditioner, and the fresh air fan speed of the air conditioner in the fresh air dehumidification mode based on the current indoor ambient temperature of the air conditioner, the current outdoor ambient temperature of the air conditioner, and the current air outlet temperature of the air conditioner, including:

[0149] The control unit 104 is further configured to control the fresh air damper of the fresh air system to open in the fresh air dehumidification mode, and to control the fresh air fan of the fresh air system to operate at a preset second initial speed. The preset second initial speed is, for example, initial speed B. The specific functions and processing of the control unit 104 are further described in step S310.

[0150] The control unit 104 is further configured to determine the difference between the current indoor ambient temperature of the air conditioner and the target indoor ambient temperature of the air conditioner, which is recorded as the current indoor ambient temperature difference of the air conditioner. It also determines whether the current indoor ambient temperature difference of the air conditioner is greater than a preset temperature difference, and determines whether the current indoor ambient temperature difference of the air conditioner is less than 0. The target indoor ambient temperature of the air conditioner is the indoor ambient temperature T set by the user. 设定 The specific functions and processing of the control unit 104 are also described in step S320.

[0151] The control unit 104 is further configured to, if it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, control the air conditioner to operate according to the first control logic in the fresh air dehumidification mode. Under the first control logic in the fresh air dehumidification mode, the compressor frequency and the fresh air fan speed of the air conditioner are adjusted based on the current indoor ambient temperature and the current outdoor ambient temperature of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S330.

[0152] The control unit 104 is further configured to, if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and greater than 0, control the air conditioner to operate according to the second control logic in the fresh air dehumidification mode. Under the second control logic in the fresh air dehumidification mode, the compressor frequency, the interior fan speed, and the fresh air fan speed of the air conditioner are adjusted based on the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S340.

[0153] The control unit 104 is further configured to, if it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, control the air conditioner to operate according to the third control logic in the fresh air dehumidification mode. Under the third control logic in the fresh air dehumidification mode, the compressor frequency, the interior fan speed, and the fresh air fan speed of the air conditioner are adjusted. The specific functions and processing of the control unit 104 are further described in step S350.

[0154] Specifically, Figure 9 FIG. 1 is a logic diagram of fresh air dehumidification control of an embodiment of an air conditioner dehumidification control device of the present invention. Figure 9 The fresh air dehumidification control logic shown includes:

[0155] Step 31: When the air conditioner enters the fresh air dehumidification control mode, the fresh air door of the air conditioner is opened to allow outdoor fresh air to enter the room, and the fresh air fan of the air conditioner is controlled to operate at an initial speed B. Then, step 32 is executed. The fresh air fan speed B is expressed in rpm and can range from 300 to 2000 rpm, preferably 1200 rpm.

[0156] Step 32: Detect the indoor ambient temperature T of the air conditioner. 内环 , and the user-set indoor ambient temperature T of the air conditioner 设定 , then execute step 33. The user sets the indoor ambient temperature T 设定 , the unit is ℃, usually the setting range is 16 ~ 30℃, this value is the detection value.

[0157] Step 33: Determine the indoor ambient temperature T of the air conditioner 内环 The user sets the indoor ambient temperature T 设定 The indoor ambient temperature difference T 内环 -T 设定 , judge the indoor ambient temperature difference T 内环 -T 设定 Is it greater than the preset temperature difference ΔT, and judge the indoor environment temperature difference T 内环 -T 设定Is it less than 0? The corresponding steps in step 34, step 35 and step 36 are executed according to the judgment result. The preset temperature difference ΔT is in °C and can be in the range of 0 to 10 °C, preferably 5 °C.

[0158] Step 34: If the indoor temperature difference T 内环 -T 设定 > preset temperature difference ΔT, enter fresh air dehumidification control mode 1, and then return to step 32.

[0159] Step 35: If the preset temperature difference ΔT ≥ indoor ambient temperature difference T 内环 -T 设定 >0, enter fresh air dehumidification control mode 2 and then return to step 32.

[0160] Step 36: If the indoor temperature difference T 内环 -T 设定 ≤0, enter fresh air dehumidification control mode 3 and then return to step 32.

[0161] See also Figure 9 In the example shown, through steps 31 to 36, when the air conditioner enters the fresh air dehumidification control, the outdoor fresh air is introduced into the room to perform auxiliary dehumidification. 内环 -T 设定 > preset temperature difference ΔT, indicating the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) is higher than the user's desired temperature (such as the user-set indoor ambient temperature T 设定 ) is large, so it is necessary to reduce the temperature while dehumidifying, and to ensure the temperature reduction effect. At this time, enter the fresh air dehumidification control mode 1. When the preset temperature difference ΔT ≥ indoor ambient temperature difference T 内环 -T 设定 >0, indicating the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) has not reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), but the difference is small, so the main consideration is the comfort of the air outlet temperature. At this time, the fresh air dehumidification control mode 2 is entered. When the indoor ambient temperature difference T 内环 -T 设定 When ≤0, it indicates the current indoor ambient temperature (such as the indoor ambient temperature of the air conditioner T 内环 ) has reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), this is mainly for energy saving consideration. At this time, enter the fresh air dehumidification control mode three.

[0162] In some embodiments, the control unit 104 adjusts the compressor frequency and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature and the current outdoor ambient temperature of the air conditioner under the first control logic in the fresh air dehumidification mode, including:

[0163] The control unit 104 is further configured to, under the first control logic in the fresh air dehumidification mode, determine whether the current indoor ambient temperature of the air conditioner is greater than a preset indoor ambient comfort temperature for a continuous set period of time. If not, control the air conditioner to maintain its current operating state. If so, increase the compressor frequency of the air conditioner by a first set frequency amplitude until the compressor frequency reaches a set maximum frequency, and then determine whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner. The first set frequency amplitude may be, for example, the compressor operating frequency adjustment value λ1. The specific functions and processing of the control unit 104 are further described in step S410.

[0164] The control unit 104 is further configured to, if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, control the air conditioner to maintain its current operating state if the current indoor ambient temperature of the air conditioner is not greater than the preset indoor comfort temperature for a continuous set time. If the current indoor ambient temperature of the air conditioner is greater than the preset indoor comfort temperature for a continuous set time, control the air conditioner to reduce the fresh air fan speed of the air conditioner by a first set speed range until the fresh air fan speed reaches a set minimum speed. If the current indoor ambient temperature of the air conditioner is still greater than the preset indoor comfort temperature for a continuous set time, control the fresh air fan of the fresh air system to shut down and control the fresh air damper of the fresh air system to close. If the current indoor ambient temperature of the air conditioner is not greater than the preset indoor comfort temperature for a continuous set time, control the air conditioner to maintain its current operating state. The first set speed range may be a fresh air fan speed adjustment value β. The specific functions and processing of the control unit 104 are further described in step S420.

[0165] The control unit 104 is further configured to, if it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, control the air conditioner to maintain its current operating state if the current indoor ambient temperature of the air conditioner is not greater than a preset indoor ambient comfort temperature for a continuous set time. If the current indoor ambient temperature of the air conditioner is greater than the preset indoor ambient comfort temperature for a continuous set time, increase the fresh air fan speed of the air conditioner by a first set speed increment until the fresh air fan speed of the air conditioner reaches a set maximum speed, and then control the air conditioner to maintain its current operating state. The specific functions and processing of the control unit 104 are further described in step S430.

[0166] Specifically, Figure 10 FIG1 is a control logic diagram of a fresh air dehumidification control mode of an embodiment of an air conditioner dehumidification control device of the present invention. Figure 10 The fresh air dehumidification control mode 1 control logic shown includes:

[0167] Step 41 : Control the air conditioner to enter fresh air dehumidification control mode 1, and then execute step 42 .

[0168] Step 42: Detect the indoor ambient temperature T of the air conditioner. 内环 , and judge whether the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 :If yes, that is, if the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , then execute step 43. Otherwise, that is, the indoor environment temperature T of the air conditioner is not satisfied for 10 consecutive minutes. 内环 >Indoor environment preset comfortable temperature T in2 , then maintain the current operating state unchanged, and then return to step 42. Among them, the indoor environment preset comfortable temperature T in2 , the unit is ℃, the value range is 20~35℃, and the preferred value is 27℃.

[0169] Step 43: When the indoor ambient temperature of the air conditioner is satisfied for 10 consecutive minutes, 内环 >Indoor environment preset comfortable temperature T in2 In the case of , the compressor frequency F is adjusted to the frequency F+λ1, and then it is determined whether the compressor frequency F has been adjusted to the maximum frequency F max :If yes, then the indoor ambient temperature T of the air conditioner is still satisfied for 10 minutes continuously. 内环 >Indoor environment preset comfortable temperature T in2If , go to step 44. Otherwise, return to step 42. max The upper limit of the allowable operating frequency of the compressor is in Hz, and the preferred value is 64 Hz. λ1 is the adjustment value of the compressor operating frequency, in Hz, λ1 = max{|T 内环 -T 设定 |,|T 内环 -T in2 |}, that is, λ1 takes the larger of the temperature difference between the inner loop and the set temperature, and the temperature difference between the inner loop and the comfortable temperature. The larger the temperature difference, the more cooling capacity is required, the more frequent the increase, and the better the cooling and temperature reduction effect.

[0170] Step 44: Detect the outdoor ambient temperature T of the air conditioner. 外环 , to determine whether the outdoor ambient temperature T of the air conditioner is met 外环 >Indoor ambient temperature of air conditioner T 内环 , and judge whether the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , execute the corresponding steps in step 45, step 46 and step 47 according to the judgment result. 外环 , the unit is ℃, which is the detection value detected by the outdoor temperature sensing package.

[0171] Step 45: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and does not meet the indoor ambient temperature T of the air conditioner for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , the current running state remains unchanged.

[0172] Step 46: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the indoor ambient temperature of the air conditioner is kept constant for 10 minutes. 内环 >Indoor environment preset comfortable temperature T in2 , then adjust the speed B of the fresh air fan to speed B-β. If the speed B is adjusted to the minimum speed B min , and still meet the indoor ambient temperature T of the air conditioner for 10 minutes 内环 >Indoor environment preset comfortable temperature T in2 , then the fresh air fan stops running and closes the fresh air damper. Wherein, β is the fresh air fan speed adjustment value, the unit is rpm. The larger β is, the greater the speed increase / decrease is, and the fresh air volume is larger / smaller. The preferred value is 100rpm. B minThe lower limit of the allowable operating speed of the fresh air fan is rpm, and the preferred value is 300rpm.

[0173] Step 47: If the outdoor ambient temperature T 外环 >Indoor ambient temperature of air conditioner T 内环 , then execute step 48.

[0174] Step 48: If the indoor ambient temperature T of the air conditioner is not satisfied for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 , the current operating state is maintained. If the indoor ambient temperature of the air conditioner is met for 10 consecutive minutes, T 内环 >Indoor environment preset comfortable temperature T in2 , then adjust the fresh air fan speed B to B+β. If B is adjusted to the maximum speed B max , and still meet the indoor ambient temperature T of the air conditioner for 10 minutes 内环 >Indoor environment preset comfortable temperature T in2 , then the current operating state remains unchanged. Among them, B max The upper limit of the allowable operating speed of the fresh air fan is rpm, and the preferred value is 2000rpm.

[0175] See also Figure 10 In the example shown, through steps 41 to 48, the fresh air dehumidification control mode 1 needs to reduce the temperature while dehumidifying, and the main purpose is to ensure the temperature reduction effect. 内环 >Indoor environment preset comfortable temperature T in2 When the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) has reached the preset comfortable temperature of the indoor environment (such as the preset comfortable temperature of the indoor environment T in2 ), even if the current temperature (such as the indoor ambient temperature T 内环 ) and the user-set temperature (such as the user-set indoor ambient temperature T 设定 ) is quite different, but because the indoor temperature has reached the comfortable temperature, the demand for the temperature reduction effect is smaller, so the current operating state is maintained and the compressor frequency is not increased to achieve energy saving. When the indoor ambient temperature T of the air conditioner is met for 10 consecutive minutes 内环 >Indoor environment preset comfortable temperature T in2 When the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) is higher than the preset comfort temperature of the indoor environment (such as the preset comfort temperature of the indoor environment T in2), rapid cooling is required, so the compressor frequency is increased first to achieve rapid cooling. If the compressor frequency is increased to the upper limit of the allowable operating frequency, the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) is still higher than the preset comfort temperature of the indoor environment (such as the preset comfort temperature of the indoor environment T in2 ), then when the outdoor ambient temperature (such as the outdoor ambient temperature of the air conditioner T 外环 ) is higher than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ), by reducing the speed of the fresh air fan (to the lowest speed that the fresh air fan can use or turning off the fresh air), the amount of fresh air entering the room from the outside is reduced, the indoor load is reduced, and the temperature is cooled faster. When the outdoor ambient temperature (such as the outdoor ambient temperature of the air conditioner T 外环 ) is lower than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ) when the temperature is too low, the speed of the fresh air fan is increased (up to the maximum speed that the fresh air fan can use) to increase the amount of fresh air entering the room from the outside, increase the air volume out, and assist in cooling.

[0176] In some embodiments, the control unit 104, under the second control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including:

[0177] The control unit 104 is further configured to, under the second control logic in the fresh air dehumidification mode, determine whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature for a continuous set period of time. If not, control the air conditioner to maintain its current operating state. If so, reduce the compressor frequency of the air conditioner by a second set frequency amplitude until the compressor frequency reaches a set minimum frequency. If the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature for a continuous set period of time, control the air conditioner to maintain its current operating state. If the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature for a continuous set period of time, increase the internal fan speed of the air conditioner by a second set speed amplitude. The second set frequency amplitude may be, for example, the compressor operating frequency adjustment value λ2. The second set speed amplitude may be, for example, the fan speed adjustment value α. The specific functions and processing of the control unit 104 are further described in step S510.

[0178] The control unit 104 is further configured to, when the speed of the air conditioner's indoor fan is increased by the second set speed increment, determine whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner if the speed of the air conditioner's indoor fan has increased to the set maximum speed. The specific functions and processing of the control unit 104 are further described in step S520.

[0179] The control unit 104 is further configured to, if it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, control the air conditioner to maintain its current operating state if the current air outlet temperature of the air conditioner is not less than a first preset air outlet temperature for a continuous set time period. If the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, increase the fresh air fan speed of the air conditioner by a first set speed increment until the fresh air fan speed of the air conditioner reaches a set maximum speed, and then control the air conditioner to maintain its current operating state. The specific functions and processing of the control unit 104 are further described in step S530.

[0180] The control unit 104 is further configured to, if it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, control the air conditioner to maintain its current operating state if the current air outlet temperature of the air conditioner is less than a first preset outlet temperature for a continuous set time period. If the current air outlet temperature of the air conditioner is less than the first preset outlet temperature for a continuous set time period, reduce the speed of the fresh air fan of the air conditioner by a first set speed increment until the speed of the fresh air fan of the air conditioner is reduced to a set minimum speed. If the current air outlet temperature of the air conditioner is still less than the first preset outlet temperature for a continuous set time period, control the fresh air fan of the fresh air system to shut down and control the fresh air damper of the fresh air system to close. If the current air outlet temperature of the air conditioner is not less than the first preset outlet temperature for a continuous set time period, control the air conditioner to maintain its current operating state. See step S540 for the specific functions and processing of the control unit 104.

[0181] Specifically, Figure 11 FIG. 1 is a control logic diagram of fresh air dehumidification control mode 2 of an embodiment of an air conditioner dehumidification control method of the present invention. Figure 11 The control logic of fresh air dehumidification control mode 2 shown includes:

[0182] Step 51 : Control the air conditioner to enter fresh air dehumidification control mode 2, and then execute step 52 .

[0183] Step 52: Detect the air outlet temperature T of the air conditioner出风口 , and judge whether the air outlet temperature of the air conditioner T is met for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 :If the air outlet temperature of the air conditioner does not meet T for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , the current operating state is maintained. If the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1 , then execute step 53.

[0184] Step 53: Adjust the compressor frequency F to F-λ2, and determine whether the compressor frequency F has been adjusted to the lowest frequency F. min :If the compressor frequency F is adjusted to the lowest frequency F min After that, if the air outlet temperature of the air conditioner is not satisfied for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1 The current operating state is maintained unchanged. If the air outlet temperature T of the air conditioner is still satisfied for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1 , then adjust the internal fan speed A to A+α. If the internal fan speed A is adjusted to the maximum speed A max After that, the air outlet temperature of the air conditioner is still satisfied for 10 minutes continuously. 出风口 <First preset air outlet temperature T C1 , then proceed to step 54. Wherein, α is the internal fan speed adjustment value, the unit is rpm, the larger α is, the higher the speed is, the larger the air volume is, and the higher the outlet temperature is. The preferred value is 100rpm. max The upper limit of the allowed operating speed of the internal fan is in rpm, and the preferred value is 1500rpm. min The lower limit of the compressor's allowable operating frequency is in Hz, and the preferred value is 28 Hz. λ2 is the compressor's operating frequency adjustment value in Hz, λ2 = T 内环 -T 设定 , that is, λ2 takes the temperature difference between the inner loop and the set temperature. When the temperature difference is large, the frequency is reduced more, and when the temperature difference is small, the frequency is reduced less, so that it will not be unable to maintain a comfortable indoor ambient temperature due to rapid frequency reduction.

[0185] Step 54: Detect the outdoor ambient temperature T of the air conditioner. 外环 , and judge whether the outdoor environment temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , execute the corresponding steps in step 55, step 56 and step 57 according to the judgment result.

[0186] Step 55: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the air outlet temperature of the air conditioner does not meet T for 10 consecutive minutes 出风口 <First preset air outlet temperature T C1 , the current running status remains unchanged.

[0187] Step 56: If the outdoor ambient temperature T of the air conditioner is satisfied 外环 >Indoor ambient temperature of air conditioner T 内环 , and the air outlet temperature of the air conditioner is kept constant for 10 minutes. 出风口 <First preset air outlet temperature T C1 , then adjust the fresh air fan speed B to B+β. If the fresh air fan speed B is adjusted to the maximum speed B max After that, the air outlet temperature of the air conditioner is still satisfied for 10 minutes continuously. 出风口 <First preset air outlet temperature T C1 , the current running state remains unchanged.

[0188] Step 57: If the outdoor ambient temperature T 外环 >Indoor ambient temperature of air conditioner T 内环 , then proceed to step 58.

[0189] Step 58: If the air outlet temperature of the air conditioner does not meet the requirement for 10 consecutive minutes, 出风口 <First preset air outlet temperature T C1 , the current operating state is maintained. If the air outlet temperature of the air conditioner is maintained for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1 , then adjust the fresh air fan speed B to B-β. If B is adjusted to the minimum speed B min , the air outlet temperature of the air conditioner is still maintained at T for 10 minutes. 出风口 <First preset air outlet temperature T C1 , then stop the fresh air fan and close the fresh air damper.

[0190] See also Figure 11 In the example shown, through steps 51 to 58, the fresh air dehumidification control mode 2 is mainly based on the consideration of the outlet temperature comfort. 出风口 <First preset air outlet temperature T C1 When the temperature of the air outlet is T 出风口 ) is appropriate and maintains the current operating status.

[0191] When the air outlet temperature of the air conditioner is met for 10 consecutive minutes, T 出风口 <First preset air outlet temperature T C1 , it indicates the current air outlet temperature (such as the air outlet temperature T 出风口 ) is too low and uncomfortable, so the outlet temperature needs to be increased (such as the outlet temperature T 出风口 ). Increase the air outlet temperature (such as the air outlet temperature T of the air conditioner). 出风口 ), give priority to reducing the compressor frequency to increase the outlet temperature (such as the air outlet temperature T 出风口 ) effect, and at the same time, the compressor frequency is reduced, which can achieve energy saving. If the compressor frequency is reduced to the lower limit of the allowable operating frequency, the current outlet temperature (such as the air conditioner outlet temperature T 出风口 ) is still too low, increase the internal fan speed, increase the air volume, and increase the air outlet temperature (such as the air outlet temperature T 出风口 If the internal fan speed is increased to the upper limit of the allowable operating speed, the current air outlet temperature (such as the air outlet temperature T 出风口 ) is still too low, then when the outdoor ambient temperature (such as the outdoor ambient temperature T 外环 ) is higher than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ), by increasing the speed of the fresh air fan (up to the maximum speed that the fresh air fan can use), the amount of fresh air entering the room from the outside is increased, and the outlet air temperature is increased. When the outdoor ambient temperature (such as the outdoor ambient temperature T 外环 ) is lower than the indoor ambient temperature (such as the indoor ambient temperature T 内环 ) by reducing the speed of the fresh air fan (to the lowest speed that the fresh air fan can use or turning off the fresh air) to reduce the amount of fresh air entering the room from the outside and increase the outlet temperature (such as the outlet temperature T 出风口 ).

[0192] In some embodiments, the control unit 104 adjusts the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner under the third control logic in the fresh air dehumidification mode, including: the control unit 104 is specifically configured to control the compressor of the air conditioner to stop, control the internal fan speed of the air conditioner to maintain the current speed, and control the fresh air fan speed of the air conditioner to maintain the current speed under the third control logic in the fresh air dehumidification mode.

[0193] Specifically, Figure 12 FIG. 1 is a control logic diagram of fresh air dehumidification control mode 3 of an embodiment of an air conditioner dehumidification control device of the present invention. Figure 12 As shown, the three control logics of fresh air dehumidification control mode include:

[0194] Step 61: Control the air conditioner to enter fresh air dehumidification control mode 3, and then execute step 62.

[0195] Step 62: Stop the compressor and maintain the current operating speed of the indoor fan and the fresh air fan.

[0196] See also Figure 12 In the example shown, fresh air dehumidification control mode 3 is mainly based on energy saving. In this case, the current indoor ambient temperature (such as the indoor ambient temperature T 内环 ) has reached the user-set temperature (such as the user-set indoor ambient temperature T 设定 ), the compressor stops running, and outdoor dry air is introduced for dehumidification, with only the fan running to achieve energy-saving effect.

[0197] The present invention addresses the issues of slow indoor temperature drop rates leading to low cooling efficiency when the indoor temperature is high during dehumidification, or user discomfort caused by low outlet air temperatures when the indoor temperature is low during dehumidification. By monitoring parameters such as the indoor ambient temperature, outdoor ambient temperature, indoor set temperature, air outlet temperature, and the duration of electric auxiliary heating operation, the air conditioner adjusts the internal fan speed, fresh air fan speed, compressor operating frequency, and the electric auxiliary heating switch. Specifically, when the air conditioner is operating in dehumidification mode, if the indoor ambient humidity is higher than the outdoor humidity, it enters fresh air dehumidification control. The internal fan speed, fresh air fan speed, and compressor operating frequency are adjusted based on the indoor ambient temperature, outdoor ambient temperature, indoor set temperature, and air outlet temperature, achieving rapid temperature drop, rapid dehumidification, and energy savings. Otherwise, the air conditioner monitors the indoor ambient temperature. If the indoor ambient temperature falls below the preset indoor ambient temperature, it enters auxiliary heating dehumidification control. The electric auxiliary heating switch is controlled based on the air outlet temperature and the duration of electric auxiliary heating operation. This avoids discomfort caused by excessively low outlet air temperatures when the indoor ambient temperature is low, thereby improving user comfort.

[0198] Since the processing and functions implemented by the device of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for any details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0199] By adopting the technical solution of the present invention, a fresh air dehumidification control mode and an auxiliary heating dehumidification control mode are set in the dehumidification mode of the air conditioner. When the air conditioner runs in the dehumidification mode, when the indoor ambient humidity is higher than the outdoor ambient humidity, the fresh air dehumidification control mode is entered. In the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed and the compressor operating frequency are adjusted according to the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature and the air outlet temperature to achieve rapid dehumidification and avoid temperature drop. When the indoor ambient humidity is not higher than the outdoor ambient humidity, the indoor ambient temperature is detected. When the indoor ambient temperature is lower than the preset indoor ambient temperature, the auxiliary heating dehumidification control mode is entered. In the auxiliary heating dehumidification control mode, the electric auxiliary heating switch is controlled according to the air outlet temperature and the electric auxiliary heating operation time to perform auxiliary heating to avoid triggering the temperature being too low when the indoor ambient temperature is low, and avoid the user's discomfort caused by the low air outlet temperature in the dehumidification mode, which is user-friendly.

[0200] According to an embodiment of the present invention, an air conditioner corresponding to the control device of the air conditioner is also provided. The air conditioner may include: the control device of the air conditioner described above.

[0201] Since the processing and functions implemented by the air conditioner of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned devices, for any details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0202] By adopting the technical solution of the present invention, a fresh air dehumidification control mode and an auxiliary heating dehumidification control mode are set in the dehumidification mode of the air conditioner. When the air conditioner runs in the dehumidification mode, when the indoor ambient humidity is higher than the outdoor ambient humidity, the fresh air dehumidification control mode is entered, and in the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed, and the compressor operating frequency are adjusted according to the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature, and the air outlet temperature to achieve rapid dehumidification and avoid temperature drop; when the indoor ambient humidity is not higher than the outdoor ambient humidity, the indoor ambient temperature is detected, and when the indoor ambient temperature is lower than the preset indoor ambient temperature, the auxiliary heating dehumidification control mode is entered, and in the auxiliary heating dehumidification control mode, the electric auxiliary heating switch is controlled according to the air outlet temperature and the electric auxiliary heating operating time to perform auxiliary heating to avoid triggering too low temperature when the indoor ambient temperature is low, which can reduce the indoor humidity, achieve rapid dehumidification, and improve the user's comfort experience.

[0203] According to an embodiment of the present invention, a storage medium corresponding to the air conditioner control method is also provided, wherein the storage medium includes a stored program, wherein when the program is running, the device where the storage medium is located is controlled to execute the above-mentioned air conditioner control method.

[0204] Since the processing and functions implemented by the storage medium of this embodiment basically correspond to the embodiments, principles and examples of the aforementioned method, for any details not fully described in this embodiment, please refer to the relevant descriptions in the aforementioned embodiments and will not be repeated here.

[0205] By adopting the technical solution of the present invention, a fresh air dehumidification control mode and an auxiliary heating dehumidification control mode are set in the dehumidification mode of the air conditioner. When the air conditioner runs in the dehumidification mode, when the indoor ambient humidity is higher than the outdoor ambient humidity, the fresh air dehumidification control mode is entered, and in the fresh air dehumidification control mode, the internal fan speed, the fresh air fan speed, and the compressor operating frequency are adjusted according to the indoor ambient temperature, the outdoor ambient temperature, the indoor set temperature, and the air outlet temperature to achieve rapid dehumidification and avoid temperature drop; when the indoor ambient humidity is not higher than the outdoor ambient humidity, the indoor ambient temperature is detected, and when the indoor ambient temperature is lower than the preset indoor ambient temperature, the auxiliary heating dehumidification control mode is entered, and in the auxiliary heating dehumidification control mode, the electric auxiliary heating switch is controlled according to the air outlet temperature and the electric auxiliary heating operating time to perform auxiliary heating to avoid triggering too low temperature when the indoor ambient temperature is low, which can improve the user's comfort experience when the air conditioner is dehumidified under different indoor and outdoor ambient humidity.

[0206] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0207] The foregoing description is merely an embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of the claims.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner has a heat exchange system, a fresh air system and an electric auxiliary heating system; the heat exchange system can work in a dehumidification mode, the fresh air system can work in a fresh air mode, and the electric auxiliary heating system can work in an electric auxiliary heating mode; When the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in the fresh air dehumidification mode; In the case where the dehumidification mode and the electric-assisted heating mode are operated together, the air conditioner can operate in the electric-assisted heating dehumidification mode; The control method of the air conditioner comprises: After the air conditioner enters the dehumidification mode, controlling the indoor fan of the air conditioner to operate at a preset first initial speed, and controlling the compressor of the air conditioner to operate at a preset initial frequency; obtaining the current indoor ambient humidity of the air conditioner, obtaining the current outdoor ambient humidity of the air conditioner, obtaining the current indoor ambient temperature of the air conditioner, obtaining the current outdoor ambient temperature of the air conditioner, obtaining the current air outlet temperature of the air conditioner, and, if the electric auxiliary heating system is turned on, obtaining the current auxiliary heating operation time of the electric auxiliary heating system; determining whether the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner; If it is determined that the current indoor ambient humidity of the air conditioner is less than or equal to the current outdoor ambient humidity of the air conditioner, then, if the current indoor ambient temperature of the air conditioner is greater than or equal to a preset indoor ambient temperature, controlling the air conditioner to maintain a current operating state; if the current indoor ambient temperature of the air conditioner is less than a preset indoor ambient temperature, controlling the air conditioner to enter the auxiliary heating and dehumidification mode; and in the auxiliary heating and dehumidification mode, adjusting the operation process of the electric auxiliary heating system in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system; If it is determined that the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner, the air conditioner is controlled to enter the fresh air dehumidification mode; and in the fresh air dehumidification mode, the fresh air damper of the fresh air system is controlled to open, and the fresh air fan of the fresh air system is controlled to operate at a preset second initial speed; Determining a difference between a current indoor ambient temperature of the air conditioner and a target indoor ambient temperature of the air conditioner, which is recorded as a current indoor ambient temperature difference of the air conditioner; and determining whether the current indoor ambient temperature difference of the air conditioner is greater than a preset temperature difference, and determining whether the current indoor ambient temperature difference of the air conditioner is less than 0; If it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, controlling the air conditioner to operate according to the first control logic in the fresh air dehumidification mode; under the first control logic in the fresh air dehumidification mode, adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; If it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and greater than 0, the air conditioner is controlled to operate according to the second control logic in the fresh air dehumidification mode; under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner are adjusted according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; If it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, the air conditioner is controlled to operate according to the third control logic in the fresh air dehumidification mode; under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted.

2. The air conditioner control method according to claim 1, characterized in that: In the auxiliary heating and dehumidification mode, the operation process of the electric auxiliary heating system is adjusted in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system, including: In the auxiliary heating and dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature: if so, controlling the electric auxiliary heating system to turn on; otherwise, controlling the air conditioner to maintain the current operating state; When the electric auxiliary heating system is turned on, determining whether the current auxiliary heating operation time of the electric auxiliary heating system is greater than a preset electric auxiliary heating operation time, and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature; If satisfied, the electric auxiliary heating system is controlled to be turned off, and then the condition is returned to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature; If not, the air conditioner is controlled to maintain the current operating state.

3. The air conditioner control method according to claim 1, wherein: Under the first control logic in the fresh air dehumidification mode, adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner includes: Under the first control logic in the fresh air dehumidification mode, determining whether the current indoor ambient temperature of the air conditioner is greater than a preset indoor ambient temperature for a continuous set time; if not, controlling the air conditioner to maintain the current operating state; and if so, increasing the compressor frequency of the air conditioner by a first set frequency amplitude until the compressor frequency of the air conditioner reaches a set maximum frequency, and then determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; If it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then, if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment is not satisfied for a continuous set time, the air conditioner is controlled to maintain a current operating state; if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment is satisfied for a continuous set time, the fresh air fan speed of the air conditioner is reduced by a first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to a set minimum speed: if the current indoor ambient temperature of the air conditioner is still greater than the preset comfort temperature of the indoor environment for a continuous set time, the fresh air fan of the fresh air system is controlled to be stopped, and the fresh air damper of the fresh air system is controlled to be closed; if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment for a continuous set time, the air conditioner is controlled to maintain a current operating state; If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within the continuous set time, the air conditioner is controlled to maintain the current operating state; if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment within the continuous set time, the fresh air fan speed of the air conditioner is increased according to the first set speed amplitude until the fresh air fan speed of the air conditioner increases to the set maximum speed, and then the air conditioner is controlled to maintain the current operating state.

4. The air conditioner control method according to claim 1, wherein: Under the second control logic in the fresh air dehumidification mode, adjusting the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner includes: Under the second control logic in the fresh air dehumidification mode, it is determined whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time: if not, the air conditioner is controlled to maintain the current operating state; if so, the compressor frequency of the air conditioner is reduced by a second set frequency amplitude until the compressor frequency of the air conditioner is reduced to a set minimum frequency; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature for a continuous set time, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature for a continuous set time, the internal fan speed of the air conditioner is increased by a second set speed amplitude; In the case where the speed of the indoor fan of the air conditioner is increased by a second set speed amplitude, if the speed of the indoor fan of the air conditioner has increased to the set maximum speed, determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; If it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then, if the current air outlet temperature of the air conditioner is not less than a first preset air outlet temperature for a continuous set time period, the air conditioner is controlled to maintain a current operating state; if the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, the fresh air fan speed of the air conditioner is increased by a first set speed amplitude until the fresh air fan speed of the air conditioner increases to a set maximum speed, and then the air conditioner is controlled to maintain a current operating state; If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature within the continuous set time, the fresh air fan speed of the air conditioner is reduced by a first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to the set minimum speed: if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature within the continuous set time, the fresh air fan of the fresh air system is controlled to stop, and the fresh air damper of the fresh air system is controlled to close; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state.

5. The air conditioner control method according to claim 1, characterized in that: Under the third control logic in the fresh air dehumidification mode, adjusting the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner includes: Under the third control logic in the fresh air dehumidification mode, the compressor of the air conditioner is controlled to stop, the speed of the internal fan of the air conditioner is controlled to maintain the current speed, and the speed of the fresh air fan of the air conditioner is controlled to maintain the current speed.

6. A control device for an air conditioner, characterized in that: The air conditioner has a heat exchange system, a fresh air system and an electric auxiliary heating system; the heat exchange system can work in a dehumidification mode, the fresh air system can work in a fresh air mode, and the electric auxiliary heating system can work in an electric auxiliary heating mode; When the dehumidification mode and the fresh air mode are operated together, the air conditioner can operate in the fresh air dehumidification mode; In the case where the dehumidification mode and the electric-assisted heating mode are operated together, the air conditioner can operate in the electric-assisted heating dehumidification mode; The control device of the air conditioner comprises: a control unit configured to, after the air conditioner enters the dehumidification mode, control the indoor fan of the air conditioner to operate at a preset first initial speed, and control the compressor of the air conditioner to operate at a preset initial frequency; an acquiring unit configured to acquire the current indoor ambient humidity of the air conditioner, acquire the current outdoor ambient humidity of the air conditioner, acquire the current indoor ambient temperature of the air conditioner, acquire the current outdoor ambient temperature of the air conditioner, acquire the current air outlet temperature of the air conditioner, and, if the electric auxiliary heating system is turned on, acquire the current auxiliary heating operation time of the electric auxiliary heating system; The control unit is further configured to determine whether the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner; The control unit is further configured to, if it is determined that the current indoor ambient humidity of the air conditioner is less than or equal to the current outdoor ambient humidity of the air conditioner, control the air conditioner to maintain the current operating state if the current indoor ambient temperature of the air conditioner is greater than or equal to a preset indoor ambient temperature; and, if the current indoor ambient temperature of the air conditioner is less than the preset indoor ambient temperature, control the air conditioner to enter the auxiliary heating and dehumidification mode; and, in the auxiliary heating and dehumidification mode, adjust the operation process of the electric auxiliary heating system in combination with the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system; The control unit is further configured to, if it is determined that the current indoor ambient humidity of the air conditioner is greater than the current outdoor ambient humidity of the air conditioner, control the air conditioner to enter the fresh air dehumidification mode; and in the fresh air dehumidification mode, control the fresh air damper of the fresh air system to open, and control the fresh air fan of the fresh air system to operate at a preset second initial speed; Determining a difference between a current indoor ambient temperature of the air conditioner and a target indoor ambient temperature of the air conditioner, which is recorded as a current indoor ambient temperature difference of the air conditioner; and determining whether the current indoor ambient temperature difference of the air conditioner is greater than a preset temperature difference, and determining whether the current indoor ambient temperature difference of the air conditioner is less than 0; If it is determined that the current indoor ambient temperature difference of the air conditioner is greater than the preset temperature difference, controlling the air conditioner to operate according to the first control logic in the fresh air dehumidification mode; under the first control logic in the fresh air dehumidification mode, adjusting the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; If it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to the preset temperature difference and greater than 0, the air conditioner is controlled to operate according to the second control logic in the fresh air dehumidification mode; under the second control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner are adjusted according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner; If it is determined that the current indoor ambient temperature difference of the air conditioner is less than or equal to 0, the air conditioner is controlled to operate according to the third control logic in the fresh air dehumidification mode; under the third control logic in the fresh air dehumidification mode, the compressor frequency of the air conditioner, the internal fan speed of the air conditioner and the fresh air fan speed of the air conditioner are adjusted.

7. The control device for an air conditioner according to claim 6, wherein: The control unit, in the auxiliary heating and dehumidification mode, adjusts the operation process of the electric auxiliary heating system based on the current air outlet temperature of the air conditioner and the current auxiliary heating operation time of the electric auxiliary heating system, including: In the auxiliary heating and dehumidification mode, determining whether the current air outlet temperature of the air conditioner is less than a first preset air outlet temperature: if so, controlling the electric auxiliary heating system to turn on; otherwise, controlling the air conditioner to maintain the current operating state; When the electric auxiliary heating system is turned on, determining whether the current auxiliary heating operation time of the electric auxiliary heating system is greater than a preset electric auxiliary heating operation time, and whether the current air outlet temperature of the air conditioner is greater than a second preset air outlet temperature; If satisfied, the electric auxiliary heating system is controlled to be turned off, and then the condition is returned to re-determine whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature; If not, the air conditioner is controlled to maintain the current operating state.

8. The control device for an air conditioner according to claim 6, wherein: The control unit, under the first control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner and the fresh air fan speed of the air conditioner according to the current indoor ambient temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: Under the first control logic in the fresh air dehumidification mode, determining whether the current indoor ambient temperature of the air conditioner is greater than a preset indoor ambient temperature for a continuous set time; if not, controlling the air conditioner to maintain the current operating state; and if so, increasing the compressor frequency of the air conditioner by a first set frequency amplitude until the compressor frequency of the air conditioner reaches a set maximum frequency, and then determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; If it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then, if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment is not satisfied for a continuous set time, the air conditioner is controlled to maintain a current operating state; if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment is satisfied for a continuous set time, the fresh air fan speed of the air conditioner is reduced by a first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to a set minimum speed: if the current indoor ambient temperature of the air conditioner is still greater than the preset comfort temperature of the indoor environment for a continuous set time, the fresh air fan of the fresh air system is controlled to be stopped, and the fresh air damper of the fresh air system is controlled to be closed; if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment for a continuous set time, the air conditioner is controlled to maintain a current operating state; If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current indoor ambient temperature of the air conditioner is not greater than the preset comfort temperature of the indoor environment within the continuous set time, the air conditioner is controlled to maintain the current operating state; if the current indoor ambient temperature of the air conditioner is greater than the preset comfort temperature of the indoor environment within the continuous set time, the fresh air fan speed of the air conditioner is increased according to the first set speed amplitude until the fresh air fan speed of the air conditioner increases to the set maximum speed, and then the air conditioner is controlled to maintain the current operating state.

9. The control device for an air conditioner according to claim 6, wherein: The control unit, under the second control logic in the fresh air dehumidification mode, adjusts the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner according to the current air outlet temperature of the air conditioner and the current outdoor ambient temperature of the air conditioner, including: Under the second control logic in the fresh air dehumidification mode, it is determined whether the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time: if not, the air conditioner is controlled to maintain the current operating state; if so, the compressor frequency of the air conditioner is reduced by a second set frequency amplitude until the compressor frequency of the air conditioner is reduced to a set minimum frequency; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature for a continuous set time, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature for a continuous set time, the internal fan speed of the air conditioner is increased by a second set speed amplitude; In the case where the speed of the indoor fan of the air conditioner is increased by a second set speed amplitude, if the speed of the indoor fan of the air conditioner has increased to the set maximum speed, determining whether the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner; If it is determined that the current outdoor ambient temperature of the air conditioner is greater than the current indoor ambient temperature of the air conditioner, then, if the current air outlet temperature of the air conditioner is not less than a first preset air outlet temperature for a continuous set time period, the air conditioner is controlled to maintain a current operating state; if the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature for a continuous set time period, the fresh air fan speed of the air conditioner is increased by a first set speed amplitude until the fresh air fan speed of the air conditioner increases to a set maximum speed, and then the air conditioner is controlled to maintain a current operating state; If it is determined that the current outdoor ambient temperature of the air conditioner is less than or equal to the current indoor ambient temperature of the air conditioner, then if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state; if the current air outlet temperature of the air conditioner is less than the first preset air outlet temperature within the continuous set time, the fresh air fan speed of the air conditioner is reduced by a first set speed amplitude until the fresh air fan speed of the air conditioner is reduced to the set minimum speed: if the current air outlet temperature of the air conditioner is still less than the first preset air outlet temperature within the continuous set time, the fresh air fan of the fresh air system is controlled to stop, and the fresh air damper of the fresh air system is controlled to close; if the current air outlet temperature of the air conditioner is not less than the first preset air outlet temperature within the continuous set time, the air conditioner is controlled to maintain the current operating state.

10. The control device for an air conditioner according to claim 6, wherein: The control unit adjusts the compressor frequency of the air conditioner, the speed of the indoor fan of the air conditioner, and the speed of the fresh air fan of the air conditioner under the third control logic in the fresh air dehumidification mode, including: Under the third control logic in the fresh air dehumidification mode, the compressor of the air conditioner is controlled to stop, the speed of the internal fan of the air conditioner is controlled to maintain the current speed, and the speed of the fresh air fan of the air conditioner is controlled to maintain the current speed.

11. An air conditioner, characterized in that: include: The control device for an air conditioner according to any one of claims 6 to 10.

12. A storage medium, characterized in that: The storage medium includes a stored program, wherein when the program is executed, the device where the storage medium is located is controlled to execute the air conditioner control method according to any one of claims 1 to 5.

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