Air conditioner and control method thereof

Abstract

The present invention discloses an air conditioner and a control method thereof, comprising: a high-temperature steam generating module; a fan driving module; an air path switching baffle; and a controller controls the fan driving module, the high-temperature steam generating module and the air path switching baffle according to the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, and the opening and closing states of the indoor air circulation system and the fresh air system, so that air enters the room from the first air outlet or the second air outlet. The present invention controls the high-temperature steam generating module, the fan driving module and the air path switching baffle accordingly by determining the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, the opening and closing states of the air inlet of the indoor air circulation system and the opening and closing states of the air inlet of the fresh air system, so as to accurately control the temperature and relative humidity of indoor air, without the need to separately set up a sterilization module, thereby greatly improving the user experience while saving costs.

Description

Technical Field

[0001] The present invention relates to the field of air conditioning, and in particular to an air conditioner and a control method thereof. Background Art

[0002] As people's living standards improve, indoor air quality has become a key issue of concern. The air quality varies greatly in different seasons and regions. For example, in summer, the suitable temperature for the human body may be 23-28℃, and the humidity may be 30%-60%; in winter, the suitable temperature for the human body may be 18-25℃, and the humidity may be 40%-80%.

[0003] At present, HEPA (High efficiency particulate air Filter) is basically used for air filtration. On the one hand, HEPA needs to be replaced regularly. If the user forgets to replace it regularly, the purification effect of the air conditioner may be poor. On the other hand, the cost of HEPA filter is high and it is inconvenient to replace it, which increases the user's usage cost. In addition, the air entering the room is mostly processed by independent modules, which have poor coordination with each other and cannot make appropriate adjustments in time according to changes in the indoor and outdoor air environment, resulting in poor user experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, one object of the present invention is to propose an air conditioner, which controls a high-temperature steam generating module, a fan driving module and an air path switching baffle accordingly by determining the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, so as to accurately regulate the temperature and relative humidity of the indoor air. There is no need to set up a sterilization module separately, which saves costs and greatly improves the user experience.

[0006] Therefore, two objects of the present invention are to provide a control method for an air conditioner.

[0007] To achieve the above-mentioned purpose, an embodiment of the present invention provides an air conditioner, comprising: a refrigeration system, which swaps the positions of the suction and exhaust pipes in the refrigeration cycle system to use the evaporator to heat the indoor air to achieve the heating operation of the air conditioner, the refrigeration system includes a compressor, the compressor is used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; an outdoor ambient temperature sensor, used to detect the temperature of the outdoor air; an indoor ambient temperature sensor, used to detect the temperature of the indoor air; an indoor humidity sensor, used to detect the relative humidity of the indoor air; a high-temperature steam generating module, used to heat the water in the water tank to generate water vapor; a fan driving module, used to drive the indoor air or the outdoor fresh air to flow through the high-temperature steam generating module, so that the water vapor and the indoor air or the outdoor fresh air for mixing; an air path switching damper for switching the direction of the air outlet so that the water vapor and the indoor air are mixed and then enter the room from the first air outlet or the second air outlet; the controller is configured to: obtain the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, as well as obtain the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system; according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, control the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper so that the air enters the room from the first air outlet or the second air outlet.

[0008] The air conditioner according to the embodiment of the present invention controls the high-temperature steam generating module, the fan driving module and the air path switching baffle accordingly by determining the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, so as to accurately regulate the temperature and relative humidity of the indoor air. There is no need to set up a sterilization module separately, which saves costs and greatly improves the user experience.

[0009] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is open and the air inlet of the fresh air system is closed, then determine whether the relative humidity of the indoor air is greater than a first preset air relative humidity; if the relative humidity of the indoor air is not greater than the first preset air relative humidity, then control the fan to turn on, control the electric heating unit to operate at a first preset power, and control the air path switching baffle to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that the water vapor mixes with the indoor air or the outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, then control the fan to turn off, and control the electric heating unit to stop heating.

[0010] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is open, and the air inlet of the fresh air system is open, and the relative humidity of the indoor air is not greater than a first preset air relative humidity, then determine whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, control the fan to turn on, control the electric heating unit to operate at a second preset power, and control the wind path switching baffle to switch to the third air outlet, so as to control the third air outlet to close and the first air outlet to open, until the relative humidity of the indoor air is greater than When the air relative humidity reaches the first preset level, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating; otherwise, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a third preset power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air and then enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating.

[0011] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, determine whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, control the fan to turn on, control the electric heating unit to operate at a fourth power, and control the wind path switching baffle to switch to the third air outlet, so as to control the first air outlet to open and the third air outlet to close, so that the water vapor is mixed with the indoor air or the outdoor fresh air and then enters the room from the first air outlet until the relative humidity of the indoor air is greater than the relative humidity of the indoor air. When the relative humidity of the indoor air reaches the first preset relative humidity, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating; otherwise, the fan is controlled to be turned on, the electric heating unit is controlled to operate at the fifth power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air to flow through the third air outlet and enter the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset relative humidity, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating.

[0012] In some embodiments, the air conditioner also includes an ion sterilization module, and the controller is further configured to: obtain the indoor particulate matter concentration; when the relative humidity of the indoor air is greater than a second preset air relative humidity, control the ion sterilization module according to the indoor particulate matter concentration, wherein the first preset air relative humidity is less than the second preset air relative humidity.

[0013] In some embodiments, the controller is specifically configured to: if the indoor particle concentration is greater than a preset particle concentration, control the ion sterilization module to turn on until the indoor particle concentration is no greater than the preset particle concentration; otherwise, control the ion sterilization module to turn off.

[0014] According to the control method of the air conditioner according to the embodiment of the present invention, by determining the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the open and closed state of the air inlet of the indoor air circulation system and the open and closed state of the air inlet of the fresh air system, the high-temperature steam generating module, the fan driving module and the air path switching baffle are controlled accordingly to accurately regulate the temperature and relative humidity of the indoor air. There is no need to set up a sterilization module separately, which saves costs and greatly improves the user experience.

[0015] To achieve the above-mentioned purpose, an embodiment of the present invention provides a method for controlling an air conditioner, the method comprising: obtaining the temperature of outdoor air, the temperature of indoor air and the relative humidity of the indoor air, and obtaining the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system; according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching baffle are controlled to allow air to enter the room from the first air outlet or the second air outlet.

[0016] According to the control method of the air conditioner according to the embodiment of the present invention, by determining the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the open and closed state of the air inlet of the indoor air circulation system and the open and closed state of the air inlet of the fresh air system, the high-temperature steam generating module, the fan driving module and the air path switching baffle are controlled accordingly to accurately regulate the temperature and relative humidity of the indoor air. There is no need to set up a sterilization module separately, which saves costs and greatly improves the user experience.

[0017] In some embodiments, according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper are controlled, including: when the air inlet of the indoor air circulation system is opened and the air inlet of the fresh air system is closed, it is determined whether the relative humidity of the indoor air is greater than a first preset air relative humidity; if the relative humidity of the indoor air is not greater than the first preset air relative humidity, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a first preset power, and the air path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating.

[0018] In some embodiments, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching baffle are controlled according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, including: when the air inlet of the indoor air circulation system is opened, and the air inlet of the fresh air system is opened, and the relative humidity of the indoor air is not greater than the first preset air relative humidity, it is determined whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, the fan is controlled to turn on, the electric heating unit is controlled to operate at a second preset power, and the fan is controlled The air path switching damper is switched to the third air outlet to control the third air outlet to close and the first air outlet to open, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to close, and the electric heating unit is controlled to stop heating; otherwise, the fan is controlled to turn on, the electric heating unit is controlled to operate at the third preset power, and the air path switching damper is controlled to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that the water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to close, and the electric heating unit is controlled to stop heating.

[0019] In some embodiments, according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper are controlled, including: when the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, judging whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, controlling the fan to turn on, controlling the electric heating unit to operate at a fourth power, and controlling the air path switching damper to switch to the third air outlet, so as to control the first air outlet to be opened and the third air outlet to be closed, so as to make The water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the first air outlet. When the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating. Otherwise, the fan is controlled to be turned on, the electric heating unit is controlled to operate at the fifth power, and the air path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air and flows through the third air outlet and enters the room from the second air outlet. When the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off and the electric heating unit is controlled to stop heating.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a partial structural schematic diagram of an air conditioner according to an embodiment of the present invention;

[0023] Figure 2 is a block diagram of an air conditioner according to an embodiment of the present invention;

[0024] Figure 3 is a flow chart of high temperature steam purification of an air conditioner according to one embodiment of the present invention;

[0025] Figure 4 is a flow chart of a method for controlling an air conditioner according to an embodiment of the present invention.

[0026] Figure numerals: first air outlet 110; third air outlet 111; air path switching damper 112; refrigeration system 10; outdoor ambient temperature sensor 11; indoor ambient temperature sensor 12; high-temperature steam generating module 13; fan driving module 14; indoor humidity sensor 15; controller 16. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Embodiments of the present invention are described in detail below.

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The air conditioner of the present invention performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

[0033] The compressor compresses the refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0034] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0035] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

[0036] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0037] In the embodiment, a high-temperature steam purification and humidification device is provided in the air conditioner, and the high-temperature steam purification and humidification device includes a high-temperature steam generation module, an air drive module and an air duct module. The air drive module includes a fan drive module 14, and the high-temperature steam generation module 13 includes a steam generation module, a water tank, a purification module, an information acquisition module, a control module and a sensor module. The information acquisition module is used to collect water level information of the steam generation module and temperature information of the electric heating unit; the air duct module includes an air duct switching baffle, an information acquisition module, an indoor pollutant detection module and a sensor. When the warm steam purification and humidification device is in operation, the electric heating unit starts to work, heats the water in the water tank and generates high-temperature water vapor, and the fan driving module drives the indoor air to flow through the high-temperature steam generating module. The high-temperature water vapor mixes with the air and enters the condensation air duct from the fourth air outlet. The condensation air duct is provided with a first air inlet, a first air outlet, a second air outlet and a third air outlet. The first air outlet is close to the first air inlet, and the second air outlet is far away from the first air inlet. The first air outlet and the second air outlet are connected to the room, and the wind path switching baffle is controlled by a motor to realize the switching of the air outlet direction.

[0038] For example, Figure 1 FIG. 1 is a schematic diagram of a partial structure of an air conditioner according to an embodiment of the present invention. Figure 1It can be seen that the casing is provided with a first air outlet 110 and a third air outlet 111, and the air conditioner also includes: an air path switching baffle 112. By providing the air path switching baffle 112 on the air conditioner, the air path switching baffle 112 is suitable for controlling the air outlet conditions of the first air outlet 110, the second air outlet (not shown in the figure) and the third air outlet 111. By controlling the opening or closing state of the air outlet, the air outlet direction is switched so that water vapor and indoor air can be mixed and enter the room from the first air outlet 110 or the second air outlet, so that the use experience of the air conditioner 1 can meet user needs to enhance user experience.

[0039] Based on the structure and function of the high-temperature steam purification and humidification device described above, the operation of the air conditioner in the embodiment of the present invention is described below by way of example.

[0040] Reference below Figure 2 An air conditioner according to an embodiment of the present invention is described. Figure 2 As shown, the air conditioner 1 of the embodiment of the present invention includes: a refrigeration system 10, an outdoor environment temperature sensor 11, an indoor environment temperature sensor 12, an indoor humidity sensor 15, a high temperature steam generating module 13, a fan driving module 14, an air path switching damper 112 and a controller 16, wherein:

[0041] The refrigeration system 10 swaps the positions of the suction and exhaust pipes in the refrigeration cycle system to use the evaporator to heat the indoor air to achieve the heating operation of the air conditioner. The refrigeration system includes a compressor, which is used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; the outdoor ambient temperature sensor 11 is used to detect the temperature of the outdoor air; the indoor ambient temperature sensor 12 is used to detect the temperature of the indoor air; the indoor humidity sensor 15 is used to detect the relative humidity of the indoor air; the high-temperature steam generation module 13 is used to heat the water in the water tank to generate water vapor; the fan drive module 14 is used to drive the indoor air or the outdoor fresh air to flow through the high-temperature steam generation module, so that the water vapor and the indoor air or the outdoor fresh air are mixed. ; The wind path switching damper 112 is used to switch the direction of the air outlet so that water vapor and indoor air are mixed and then enter the room from the first air outlet or the second air outlet; the controller is configured 17 to: obtain the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, as well as obtain the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system; according to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the wind path switching damper are controlled so that air enters the room from the first air outlet or the second air outlet.

[0042] In this way, the purification and humidification of the air entering the room can be accurately controlled, and the temperature of the indoor air, the temperature of the outdoor air and the relative humidity of the indoor air can be detected by corresponding temperature sensors and humidity sensors. According to the differences in the temperature of the indoor air, the temperature of the outdoor air and the relative humidity of the indoor air, the operating mode corresponding to the temperature and humidity is determined to achieve accurate control of the indoor fresh air and the indoor air temperature and humidity, thereby improving the user experience.

[0043] In the embodiment, when air processing is performed, the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air are obtained, and the opening and closing state of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system are determined. According to the obtained temperature, relative humidity and operation information of the air conditioner, the operation state of the fan of the fan driving module, the heating unit of the high-temperature steam generating module and the air path switching damper are controlled accordingly to process the indoor air, to control the relative humidity of the indoor air and the indoor particulate matter concentration, so as to achieve precise control of the indoor air and improve the user experience. It can be understood that after the fresh air fan is turned on, when the air inlet of the indoor air circulation system is in an open state, the indoor air circulation function is turned on, and when the air inlet of the fresh air system is in an open state, the fresh air function is turned on. By controlling the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, the indoor air circulation function and the fresh air function can be turned on or off.

[0044] For example, the temperature of outdoor air is recorded as T1, the temperature of indoor air is recorded as T2, and the relative humidity of indoor air is recorded as , the concentration of indoor particulate matter is recorded as N, for example. When the indoor air circulation system and the fresh air system are in different opening and closing states, the relationship between the relative humidity of the indoor air and the preset air relative humidity, and the relationship between the temperature of the indoor air and the temperature of the outdoor air are compared, and the operating states of the high-temperature steam generation module, the fan drive module and the wind path switching baffle are controlled according to the above comparison results to achieve precise adjustment of indoor air purification, sterilization and humidification, without the need to set up a separate sterilization module, which saves costs and greatly improves user experience.

[0045] The air conditioner according to the embodiment of the present invention controls the high-temperature steam generating module, the fan driving module and the air path switching baffle accordingly by determining the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, so as to accurately regulate the temperature and relative humidity of the indoor air. There is no need to set up a sterilization module separately, which saves costs and greatly improves the user experience.

[0046] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is open and the air inlet of the fresh air system is closed, then determine whether the relative humidity of the indoor air is greater than a first preset relative humidity of the air; if the relative humidity of the indoor air is not greater than the first preset relative humidity of the air, then control the fan to turn on, control the electric heating unit to operate at a first preset power, and control the air path switching baffle to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that water vapor is mixed with indoor air or outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset relative humidity of the air, then control the fan to turn off, and control the electric heating unit to stop heating.

[0047] In the embodiment, the preset relative humidity of air is, for example, 1. Preset relative humidity of air 1 can be 30-40%. If the air inlet of the indoor air circulation system is open, the indoor air circulation function is turned on, and the air inlet of the fresh air system is closed, that is, when the fresh air mode is turned off, the indoor air will not exchange heat with the outside air, and the temperature has little effect on the air humidity. At this time, only the relative humidity of the indoor air is used as the basis for judgment. For example, the relative humidity of the indoor air is detected. , and compare the relative humidity of indoor air Compared with the preset air relative humidity 1 The relationship between the relative humidity of indoor air The preset relative humidity of the air is not exceeded 1, the first steam purification mode is adopted. In the first steam purification mode, the fan of the fan driving module is controlled to be turned on, and the electric heating unit of the high-temperature steam generating module is controlled to operate at a first preset power, for example, the electric heating unit of the high-temperature steam generating module is controlled to operate at 60% of the power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the high-temperature water vapor is mixed with the indoor air or the outdoor fresh air and then enters the room from the second air outlet. The air is discharged from the second air outlet. On the one hand, the density of water vapor is greater than that of air, so the suspended matter or particulate matter in the air can be precipitated. On the other hand, since the air duct distance through which the air flows is longer, the time for the high-temperature steam gas to sterilize the air entering the air conditioner can be increased, so that the sterilization is more thorough.

[0048] When controlling the fan drive module, the high-temperature steam generation module and the wind path switching damper, the relative humidity of the indoor air continues to be detected until the relative humidity of the indoor air is greater than the preset relative humidity of the air, and the control of the operation of the above modules is stopped.

[0049] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is open, and the air inlet of the fresh air system is open, and the relative humidity of the indoor air is not greater than the first preset air relative humidity, then determine whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than the preset temperature threshold; if so, control the fan to turn on, control the electric heating unit to operate at a second preset power, and control the wind path switching damper to switch to the third air outlet to control the third air outlet to close and the first air outlet to open, until the relative humidity of the indoor air is greater than the first preset air relative humidity, control the fan to turn off, and control the electric heating unit to stop heating; otherwise, control the fan to turn on, control the electric heating unit to operate at the third preset power, and control the wind path switching damper to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that water vapor mixes with the indoor air or outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, control the fan to turn off, and control the electric heating unit to stop heating.

[0050] In the embodiment, when the air inlet of the indoor air circulation system and the air inlet of the fresh air system are both opened, the indoor air and the outdoor air produce heat exchange due to the introduction of outdoor air, and the relative humidity of the indoor air will change to a certain extent. Therefore, the indoor and outdoor air temperatures are required as another basis for judgment.

[0051] The preset temperature threshold is, for example, When the relative humidity of the indoor air is not greater than the preset relative humidity of the air, the relationship between the indoor air temperature and the outdoor air temperature is further determined, and the difference between the indoor air temperature T2 and the outdoor air temperature T1 is calculated. When the difference is greater than the preset temperature threshold, for example, T2-T1> When the air conditioner is controlled to operate in the second steam purification mode, the temperature of the indoor air is reduced due to mixing with the fresh air. In order to minimize the discomfort caused by the reduction of indoor temperature to the human body, the second high-temperature steam purification mode is adopted. In the second steam purification mode, the fan of the fan driving module is controlled to be turned on, and the heating unit of the high-temperature steam generating module is controlled to operate at the second preset power, for example, the electric heating unit in the high-temperature steam generating module is controlled to operate at 80% power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the third air outlet to be closed and the first air outlet to be opened, so that the air rich in high-temperature steam enters the room from the first air outlet in the middle of the air conditioner. At this time, the air temperature coming out of the first air outlet is relatively high. After entering the room, it has a certain warming effect on the indoor air.

[0052] When the second high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0053] When the air inlet of the indoor air circulation system is open, and the air inlet of the fresh air system is open, and the relative humidity of the indoor air is not greater than the preset relative humidity of the air, and the difference between the temperature of the indoor air and the temperature of the outdoor air does not exceed the preset temperature threshold, that is, T2-T1≤ When the third steam purification mode is used and the fresh air function and indoor air circulation are turned on at the same time, if the temperature difference between indoor and outdoor is less than or equal to , it indicates that the introduction of fresh air has limited cooling effect on the indoor air and will not cause much discomfort to the human body. At this time, the fan of the fan driving module is controlled to be turned on, and the high-temperature steam generating module is controlled to operate at the third preset power, for example, the electric heating unit in the high-temperature steam generating module is controlled to operate at 80% power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor and the indoor air are mixed and enter the room from the second air outlet;

[0054] When the third high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air is continuously detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the above modules is stopped, wherein the temperature difference between the inside and the outside is The range can be between 15° and 30°. For example, in winter, the temperature difference between indoor air and outdoor air is large. It can be 20°.

[0055] In some embodiments, the controller is specifically configured as follows: if the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, determine whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, control the fan to turn on, control the electric heating unit to operate at a fourth power, and control the wind path switching damper to switch to the third air outlet, so as to control the first air outlet to open and the third air outlet to close, so that water vapor is mixed with indoor air or outdoor fresh air and enters the room from the first air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, control the fan to turn off, and control the electric heating unit to stop heating; otherwise, control the fan to turn on, control the electric heating unit to operate at a fifth power, and control the wind path switching damper to switch to the first air outlet, so as to control the first air outlet to close and the third air outlet to open, so that water vapor is mixed with indoor air or outdoor fresh air and flows through the third air outlet and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, control the fan to turn off, and control the electric heating unit to stop heating.

[0056] In the embodiment, when the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, the indoor air does not participate in the mixed air. After the outdoor fresh air enters the room, the temperature change of the indoor air is more obvious, and the relative humidity of the indoor air is also greater. Therefore, only the indoor and outdoor temperature difference is used as the only judgment basis. At this time, the temperature of the indoor air is compared with the temperature of the outdoor air. When the temperature difference between the indoor air and the outdoor air is greater than the preset temperature threshold, that is, T2-T1> When the air conditioner is operated in the fourth steam purification mode, the high-temperature steam generation module is controlled to operate at the fourth power, for example, the heating unit of the high-temperature steam generation module is controlled to operate at full power, and the air path switching damper is controlled to switch to the third air outlet, so as to control the first air outlet to be opened and the third air outlet to be closed, so that the water vapor and the indoor air are mixed and then enter the room from the first air outlet, which has a certain heating effect on the indoor air;

[0057] When the fourth high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0058] When the air inlet of the indoor air circulation system is closed, and the air inlet of the fresh air system is opened, and the difference between the temperature of the indoor air and the temperature of the outdoor air is less than a preset temperature threshold, the fifth steam purification mode is adopted. In the fifth steam purification mode, the fan of the fan driving module is controlled to be turned on, and the heating unit of the high-temperature steam generating module is controlled to operate at the fifth power, for example, the high-temperature steam generating module is controlled to operate at full power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that water vapor and indoor air are mixed and flow through the third air outlet and enter the room from the second air outlet;

[0059] When the fourth high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0060] In some embodiments, the air conditioner further includes an ion sterilization module, and the controller is further configured to: obtain the indoor particle concentration; and control the ion sterilization module according to the indoor particle concentration when the relative humidity of the indoor air is greater than a second preset air relative humidity.

[0061] In the embodiment, the second preset relative humidity of air is, for example, 2. When the indoor air is treated with the corresponding steam purification mode, if the relative humidity of the indoor air is greater than the second preset relative humidity of the air 2, then continue to determine the indoor particle concentration N preset particle concentration N 设 When the indoor particle concentration N is greater than the preset particle concentration N 设 If the indoor particle concentration is greater than the preset particle concentration, the ion sterilization module is controlled to be turned on until the indoor particle concentration is no greater than the preset particle concentration. Otherwise, the ion sterilization module is controlled to be turned off. The second preset air relative humidity is recorded as 2 The humidity range can be 60%-80%, for example 2 can be 60%. Users have different perceptions of relative humidity, so it can be determined based on specific physical needs.

[0062] It can be understood that by detecting the particle concentration N and setting up an ion sterilization module, when the indoor air passes through the high-temperature steam generating module, the particles, suspended matter, and bacteria in the air are highly sterilized by high temperature and steam sedimentation before reaching each air outlet. If it is detected that the particle content in the air does not meet the standard, the ion sterilization module is turned on for secondary sterilization. If the test result meets the standard, the ion sterilization module is not turned on and the air enters the room directly.

[0063] Reference below Figure 3 The high temperature steam purification of the air conditioner according to the embodiment of the present invention is illustrated by way of example. Figure 3 FIG. 1 is a flow chart of high-temperature steam purification of an air conditioner according to a specific embodiment of the present invention.

[0064] Step S11, obtaining the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air.

[0065] Step S12, determine whether the air inlet of the fresh air system is open, if so, execute step S13, if not, execute step S17.

[0066] Step S13, determining whether the air inlet of the indoor air circulation system is open, if so, executing step S14, if not, executing step S21.

[0067] Step S14, determining whether the relative humidity of the indoor air is less than a first preset relative humidity of the air, if so, executing step S15, if not, executing step S19.

[0068] Step S15, determining whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold, if so, executing step S16, if not, executing step S23.

[0069] Step S16, adopting the second steam purification mode.

[0070] Step S17, the indoor air circulation system is turned on.

[0071] Step S18, determining whether the relative humidity of the indoor air is less than a first preset relative humidity of the air, if so, executing step S20, if not, executing step S19.

[0072] Step S19, the control device is turned off.

[0073] Step S20, adopting the first steam purification mode.

[0074] Step S21, determine whether the difference between the indoor air temperature and the outdoor air temperature is greater than a preset temperature threshold, if so, execute step S22, if not, execute step S24.

[0075] Step S22, adopting the fourth steam purification mode.

[0076] Step S23, adopting the third steam purification mode.

[0077] Step S24, adopting the fifth steam purification mode.

[0078] Step S25, determining whether the relative humidity of the indoor air is greater than a second preset relative humidity of the air, if so, executing step S26, if not, executing step S11.

[0079] Step S26, determining whether the indoor particle concentration is less than a preset particle concentration, if so, executing step S28, if not, executing step S28. If not, executing step S27.

[0080] Step S27, the ion sterilization module is turned on.

[0081] Step S28, the control device stops working.

[0082] The air conditioner according to the embodiment of the present invention detects the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, and after determining the open and closed states of the air inlet of the indoor air circulation system and the open and closed states of the air inlet of the fresh air system, controls the fan drive module, the high-temperature steam generating module and the air path switching baffle according to the relationship between the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, so as to achieve precise control of purification, sterilization and humidification of indoor air, without the need to use a separate sterilization module, which saves costs and greatly improves user experience.

[0083] The following describes a method for controlling an air conditioner according to an embodiment of the present invention.

[0084] Reference Figure 4The control method of the air conditioner according to the second aspect of the present invention is described. The control method of the air conditioner at least comprises:

[0085] Step S1, obtaining the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, as well as obtaining the opening and closing states of the air inlet of the indoor air circulation system and the opening and closing states of the air inlet of the fresh air system.

[0086] In an embodiment, when air treatment is performed, the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air are obtained, and the opening and closing states of the air inlet of the indoor air circulation system and the opening and closing states of the air inlet of the fresh air system are detected. According to the obtained temperature, relative humidity, the opening and closing states of the air inlet of the indoor air circulation system, the opening and closing states of the air inlet of the fresh air system, and the operating states of the fan of the fan drive module, the electric heating unit of the high-temperature steam generating module and the air path switching baffle, corresponding control is performed to process the indoor air, to control the relative humidity of the indoor air and the indoor particulate matter concentration, thereby achieving precise control of the indoor air and improving user experience.

[0087] Step S2, according to the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper are controlled to allow air to enter the room from the first air outlet or the second air outlet.

[0088] In an embodiment, the operating states of the fan drive module, the high-temperature steam generation module and the air path switching baffle are controlled accordingly according to the acquired temperature, relative humidity and the opening and closing state of the air inlet of the indoor air circulation system to process the indoor air and control the relative humidity of the indoor air and the indoor particulate matter concentration, thereby achieving precise control of the indoor air and improving the user experience.

[0089] According to the control method of the air conditioner according to the embodiment of the present invention, by detecting the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, and after determining the open and closed states of the air inlet of the indoor air circulation system and the open and closed states of the air inlet of the fresh air system, the fan drive module, the high-temperature steam generating module and the air path switching baffle are controlled according to the relationship between the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, so as to achieve precise control of purification, sterilization and humidification of indoor air, without the need to set up a separate sterilization module, which saves costs and greatly improves user experience.

[0090] In some embodiments, based on the temperature of outdoor air, the temperature of indoor air and the relative humidity of indoor air, the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system, it includes: when the air inlet of the indoor air circulation system is opened and the air inlet of the fresh air system is closed, it is determined whether the relative humidity of the indoor air is greater than a first preset air relative humidity; if the relative humidity of the indoor air is not greater than the first preset air relative humidity, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a first preset power, and the air path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that water vapor is mixed with indoor air or outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating.

[0091] In the embodiment, the preset relative humidity of air is, for example, 1. Preset relative humidity of air 1 can be 30-40%. If the air inlet of the indoor air circulation system is open, the indoor air circulation function is turned on, and the air inlet of the fresh air system is closed, that is, when the fresh air mode is turned off, the indoor air will not exchange heat with the outside air, and the temperature has little effect on the air humidity. At this time, only the relative humidity of the indoor air is used as the basis for judgment. For example, the relative humidity of the indoor air is detected. , and compare the relative humidity of indoor air Compared with the preset air relative humidity 1 The relationship between the relative humidity of indoor air The preset relative humidity of the air is not exceeded 1, the first steam purification mode is adopted. In the first steam purification mode, the fan of the fan driving module is controlled to be turned on, and the electric heating unit of the high-temperature steam generating module is controlled to operate at a first preset power, for example, the electric heating unit of the high-temperature steam generating module is controlled to operate at 60% of the power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the high-temperature water vapor is mixed with the indoor air or the outdoor fresh air and then enters the room from the second air outlet. The air is discharged from the second air outlet. On the one hand, the density of water vapor is greater than that of air, so the suspended matter or particulate matter in the air can be precipitated. On the other hand, since the air duct distance through which the air flows is longer, the time for the high-temperature steam gas to sterilize the air entering the air conditioner can be increased, so that the sterilization is more thorough.

[0092] When controlling the fan drive module, the high-temperature steam generation module and the wind path switching damper, the relative humidity of the indoor air continues to be detected until the relative humidity of the indoor air is greater than the preset relative humidity of the air, and the control of the operation of the above modules is stopped.

[0093] In some embodiments, when the air inlet of the indoor air circulation system is opened, and the air inlet of the fresh air system is opened, and the relative humidity of the indoor air is not greater than a first preset air relative humidity, it is determined whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a second preset power, and the wind path switching damper is controlled to switch to the third air outlet to control the third air outlet to close and the first air outlet to open, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; otherwise, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a third preset power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the second air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating.

[0094] In the embodiment, in the embodiment, when the air inlet of the indoor air circulation system and the air inlet of the fresh air system are both opened, the indoor air and the outdoor air produce heat exchange due to the introduction of outdoor air, and the relative humidity of the indoor air will produce a certain change. Therefore, the indoor and outdoor air temperatures are required as another basis for judgment.

[0095] The preset temperature threshold is, for example, When the relative humidity of the indoor air is not greater than the preset relative humidity of the air, the relationship between the indoor air temperature and the outdoor air temperature is further determined, and the difference between the indoor air temperature T2 and the outdoor air temperature T1 is calculated. When the difference is greater than the preset temperature threshold, for example, T2-T1> When the air conditioner is controlled to operate in the second steam purification mode, the temperature of the indoor air is reduced due to mixing with the fresh air. In order to minimize the discomfort caused by the reduction of indoor temperature to the human body, the second high-temperature steam purification mode is adopted. In the second steam purification mode, the fan of the fan driving module is controlled to be turned on, and the heating unit of the high-temperature steam generating module is controlled to operate at the second preset power, for example, the electric heating unit in the high-temperature steam generating module is controlled to operate at 80% power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the third air outlet to be closed and the first air outlet to be opened, so that the air rich in high-temperature steam enters the room from the first air outlet in the middle of the air conditioner. At this time, the air temperature coming out of the first air outlet is relatively high. After entering the room, it has a certain warming effect on the indoor air.

[0096] When the second high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0097] When the air inlet of the indoor air circulation system is open, and the air inlet of the fresh air system is open, and the relative humidity of the indoor air is not greater than the preset relative humidity of the air, and the difference between the temperature of the indoor air and the temperature of the outdoor air does not exceed the preset temperature threshold, that is, T2-T1≤ When the third steam purification mode is used and the fresh air function and indoor air circulation are turned on at the same time, if the temperature difference between indoor and outdoor is less than or equal to , it indicates that the introduction of fresh air has limited cooling effect on the indoor air and will not cause much discomfort to the human body. At this time, the fan of the fan driving module is controlled to be turned on, and the high-temperature steam generating module is controlled to operate at the third preset power, for example, the electric heating unit in the high-temperature steam generating module is controlled to operate at 80% power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor and the indoor air are mixed and enter the room from the second air outlet;

[0098] When the third high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air is continuously detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the above modules is stopped, wherein the temperature difference between the inside and the outside is The range can be between 15° and 30°. For example, in winter, the temperature difference between indoor air and outdoor air is large. It can be 20°.

[0099] In some embodiments, when the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, it is determined whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; if so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a fourth power, and the wind path switching damper is controlled to switch to the third air outlet to control the first air outlet to be opened and the third air outlet to be closed, so that water vapor is mixed with indoor air or outdoor fresh air and enters the room from the first air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; otherwise, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a fifth power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that water vapor is mixed with indoor air or outdoor fresh air and flows through the third air outlet and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating.

[0100] In the embodiment, when the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, the indoor air does not participate in the mixed air. After the outdoor fresh air enters the room, the temperature change of the indoor air is more obvious, and the relative humidity of the indoor air is also greater. Therefore, only the indoor and outdoor temperature difference is used as the only judgment basis. At this time, the temperature of the indoor air is compared with the temperature of the outdoor air. When the temperature difference between the indoor air and the outdoor air is greater than the preset temperature threshold, that is, T2-T1> When the air conditioner is in the fourth steam purification mode, the high-temperature steam generation module is controlled to operate at the fourth power, for example, the heating unit of the high-temperature steam generation module is controlled to operate at full power, and the air path switching damper is controlled to switch to the third air outlet, so as to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor and the indoor air are mixed and then enter the room from the first air outlet, thereby having a certain heating effect on the indoor air;

[0101] When the fourth high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0102] When the air inlet of the indoor air circulation system is closed, and the air inlet of the fresh air system is opened, and the difference between the temperature of the indoor air and the temperature of the outdoor air is less than a preset temperature threshold, the fifth steam purification mode is adopted. In the fifth steam purification mode, the fan of the fan driving module is controlled to be turned on, and the heating unit of the high-temperature steam generating module is controlled to operate at the fifth power, for example, the high-temperature steam generating module is controlled to operate at full power, and the wind path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that water vapor and indoor air are mixed and flow through the third air outlet and enter the room from the second air outlet;

[0103] When the fourth high-temperature steam purification mode is adopted, the relationship between the relative humidity of the indoor air and the preset relative humidity of the air continues to be detected, and when the relative humidity of the indoor air exceeds the preset relative humidity of the air, the control of the operation of the above modules is stopped.

[0104] In some embodiments, the control method of the air conditioner also includes obtaining the indoor particulate matter concentration; when the relative humidity of the indoor air is greater than a second preset air relative humidity, controlling the ion sterilization module according to the indoor particulate matter concentration, wherein the first preset air relative humidity is less than the second preset air relative humidity.

[0105] In some embodiments, controlling the ion sterilization module according to the indoor particle concentration includes: if the indoor particle concentration is greater than the preset particle concentration, controlling the ion sterilization module to turn on until the indoor particle concentration is no greater than the preset particle concentration, otherwise controlling the ion sterilization module to turn off.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0107] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A refrigeration system, which swaps the positions of the suction and exhaust pipes in the refrigeration cycle system to use the evaporator to heat the indoor air to achieve the heating operation of the air conditioner, and the refrigeration system includes a compressor, which is used to compress the low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure refrigerant gas and discharge it to the condenser; Outdoor ambient temperature sensor, used to detect the temperature of outdoor air; Indoor ambient temperature sensor, used to detect the temperature of indoor air; Indoor humidity sensor, used to detect the relative humidity of indoor air; A high temperature steam generation module, used for heating water in a water tank to generate water vapor; A fan driving module, used for driving indoor air or outdoor fresh air to flow through the high-temperature steam generating module, so that the water vapor is mixed with the indoor air or the outdoor fresh air; an air duct switching baffle, used for switching the direction of the air outlet, so that the water vapor and the indoor air are mixed and then enter the room from the first air outlet or the second air outlet, wherein the condensation air duct is provided with a first air inlet, the first air outlet, the second air outlet and a third air outlet, the first air outlet is close to the first air inlet, and the second air outlet is far away from the first air inlet, wherein the first air outlet and the second air outlet are connected to the room; The controller is configured as: Acquiring the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, as well as acquiring the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system; According to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the opening and closing state of the air inlet of the indoor air circulation system and the opening and closing state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper are controlled so that air enters the room from the first air outlet or the second air outlet. If the air inlet of the indoor air circulation system is opened and the air inlet of the fresh air system is closed, it is determined whether the relative humidity of the indoor air is greater than a first preset relative humidity of the air. If the relative humidity of the indoor air is not greater than the first preset relative humidity of the air, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a first preset power, and the air path switching damper is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset relative humidity of the air, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating.

2. The air conditioner according to claim 1, characterized in that: The controller is specifically configured as follows: If the air inlet of the indoor air circulation system is open, and the air inlet of the fresh air system is open, and the relative humidity of the indoor air is not greater than a first preset relative humidity of the air, then determining whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; If so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at the second preset power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the third air outlet to be closed and the first air outlet to be opened, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; Otherwise, the fan is controlled to turn on, the electric heating unit is controlled to operate at a third preset power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that the water vapor is mixed with the indoor air or the outdoor fresh air and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, then the fan is controlled to turn off, and the electric heating unit is controlled to stop heating.

3. The air conditioner according to claim 1, characterized in that: The controller is specifically configured as follows: If the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, determine whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; If so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a fourth power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the first air outlet to be opened and the third air outlet to be closed, so that the water vapor is mixed with the indoor air or the outdoor fresh air and then enters the room from the first air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; Otherwise, the fan is controlled to turn on, the electric heating unit is controlled to operate at the fifth power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed, and the third air outlet is opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air to flow through the third air outlet and enter the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, then the fan is controlled to turn off, and the electric heating unit is controlled to stop heating.

4. The air conditioner according to any one of claims 1 to 3, characterized in that: The air conditioner further includes an ion sterilization module, and the controller is further configured as follows: Get indoor particle concentration; When the relative humidity of the indoor air is greater than a second preset relative humidity of the air, the ion sterilization module is controlled according to the indoor particle concentration, wherein the first preset relative humidity of the air is less than the second preset relative humidity of the air.

5. The air conditioner according to claim 4, characterized in that: The controller is specifically configured as follows: If the indoor particle concentration is greater than the preset particle concentration, the ion sterilization module is controlled to be turned on until the indoor particle concentration is no greater than the preset particle concentration; otherwise, the ion sterilization module is controlled to be turned off.

6. A method for controlling an air conditioner, characterized in that: include: Acquiring the temperature of outdoor air, the temperature of indoor air and the relative humidity of the indoor air, as well as acquiring the opening and closing status of the air inlet of the indoor air circulation system and the opening and closing status of the air inlet of the fresh air system; According to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the open and closed state of the air inlet of the indoor air circulation system and the open and closed state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the air path switching damper are controlled to allow air to enter the room from the first air outlet or the second air outlet. If the air inlet of the indoor air circulation system is open and the air inlet of the fresh air system is closed, it is determined whether the relative humidity of the indoor air is greater than a first preset relative humidity of the air. If the relative humidity of the indoor air is not greater than the first preset relative humidity of the air, the fan is controlled to be turned on and the electric heating unit is controlled to be turned on. The heat unit operates at a first preset power, and controls the wind path switching damper to switch to the first air outlet, so as to control the first air outlet to be closed and the third air outlet to be opened, so that water vapor is mixed with the indoor air or outdoor fresh air and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, controls the fan to be closed, and controls the electric heating unit to stop heating, wherein the condensation air duct is provided with a first air inlet, the first air outlet, the second air outlet and the third air outlet, the first air outlet is close to the first air inlet, and the second air outlet is far away from the first air inlet, wherein the first air outlet and the second air outlet are connected to the room.

7. The air conditioner control method according to claim 6, characterized in that: According to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the open and closed state of the air inlet of the indoor air circulation system and the open and closed state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the wind path switching damper are controlled, including: When the air inlet of the indoor air circulation system is opened, and the air inlet of the fresh air system is opened, and the relative humidity of the indoor air is not greater than a first preset relative humidity of the air, it is determined whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; If so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at the second preset power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the third air outlet to be closed and the first air outlet to be opened, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; Otherwise, the fan is controlled to turn on, the electric heating unit is controlled to operate at a third preset power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to close and the third air outlet to open, so that water vapor is mixed with the indoor air or outdoor fresh air and enters the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, then the fan is controlled to turn off, and the electric heating unit is controlled to stop heating.

8. The air conditioner control method according to claim 6, characterized in that: According to the temperature of the outdoor air, the temperature of the indoor air and the relative humidity of the indoor air, the open and closed state of the air inlet of the indoor air circulation system and the open and closed state of the air inlet of the fresh air system, the fan of the fan driving module, the electric heating unit of the high-temperature steam generating module and the wind path switching damper are controlled, including: When the air inlet of the indoor air circulation system is closed and the air inlet of the fresh air system is opened, determining whether the difference between the temperature of the indoor air and the temperature of the outdoor air is greater than a preset temperature threshold; If so, the fan is controlled to be turned on, the electric heating unit is controlled to operate at a fourth power, and the wind path switching damper is controlled to switch to the third air outlet, so as to control the first air outlet to be opened and the third air outlet to be closed, so that water vapor is mixed with the indoor air or outdoor fresh air and then enters the room from the first air outlet, until the relative humidity of the indoor air is greater than the first preset air relative humidity, the fan is controlled to be turned off, and the electric heating unit is controlled to stop heating; Otherwise, the fan is controlled to turn on, the electric heating unit is controlled to operate at the fifth power, and the wind path switching baffle is controlled to switch to the first air outlet to control the first air outlet to be closed and the third air outlet to be opened, so that the water vapor is mixed with the indoor air or the outdoor fresh air to flow through the third air outlet and enter the room from the second air outlet until the relative humidity of the indoor air is greater than the first preset air relative humidity, then the fan is controlled to turn off and the electric heating unit is controlled to stop heating.

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