Air treatment system and its control method

Abstract

The present invention provides an air treatment system and a control method thereof. The air treatment system includes: a housing, an air outlet passage is formed inside the housing, and the air outlet passage includes an air outlet; an ion generator disposed at the air outlet; a blower that communicates with the air outlet passage to provide a driving force for air flow; a control system, the ion generator and the blower are respectively connected to the control system; a humidity sensor for detecting the relative humidity RH of the indoor environment, and the humidity sensor is connected to the control system; the ion generator includes an opposed electrode, an emitting electrode and a power supply, and the opposed electrode and the emitting electrode are respectively connected to the power supply; a grounding sheet metal, the opposed electrode is disposed between the grounding sheet metal and the emitting electrode, and the distance between the grounding sheet metal and the emitting electrode is greater than the distance between the opposed electrode and the emitting electrode.

Description

[0001] This invention is a divisional application based on Chinese Invention Application No. 202210310115.5 (filed on March 28, 2022), with the invention title: Divisional Application of Air Treatment System. Technical Field

[0002] This invention relates to the technical field of household appliances, and particularly to an air treatment system and its control method. Background Art

[0003] As users have put forward higher requirements for indoor air quality, air conditioners and fresh air fans equipped with ion generators are becoming more and more popular. Ion generators are widely used in the field of air purification. By generating negative ions, the characteristics of dust removal and disinfection of negative ions themselves are used to optimize the indoor air quality. Currently, most ion generators use single-electrode ion generators with only high-voltage electrodes.

[0004] Currently, the emission electrode of a single-electrode ion generator is generally at a negative voltage. The emission electrode usually forms a discharge with the grounded sheet metal of the air treatment system to generate air ions. In application design, the distance between the emission electrode of the ion generator and the grounded sheet metal is fixed, but the impedance between the emission electrode and the grounded sheet metal will change with the change of environmental humidity.

[0005] When the environmental humidity is low, due to the fixed distance between the emission electrode of the ion generator and the grounded sheet metal, the impedance increases, resulting in a small amount of ions generated by the ion generator. When the environmental humidity is high, the impedance between the emission electrode and the grounded sheet metal is small, but the distance between the emission electrode and the grounded sheet metal remains fixed, and the discharge energy of the emission electrode is large, resulting in the generation of more ozone or other oxide ions, causing indirect pollution to the environment. When the discharge energy increases to a certain extent, the actual power of the power supply of the ion generator exceeds the rated power, resulting in a decrease in the voltage of the emission electrode and the inability to continue generating ions. Summary of the Invention

[0006] This invention solves at least one of the technical problems in the related art to some extent.

[0007] Therefore, this application aims to provide an air treatment system and its control method. The air treatment system includes an ion generator and a grounded sheet metal. The ion generator includes an emission electrode and an opposing electrode. The emission electrode can discharge with the opposing electrode and the grounded sheet metal respectively under different humidity conditions, enabling the ion generator to operate normally under different humidity conditions to generate sufficient ions, and avoiding insufficient ion generation and ozone pollution.

[0008] An air treatment system according to the present application includes: a housing; an ion generator disposed in an air outlet passage formed within the housing, the ion generator including a power supply, and further including an emission electrode and an opposing electrode respectively connected to the power supply; a grounding sheet metal, the opposing electrode being disposed between the grounding sheet metal and the emission electrode, the distance between the grounding sheet metal and the emission electrode being greater than the distance between the opposing electrode and the emission electrode; a control system, the control system being connected to the ion generator; the air treatment system control method includes: the ion generator turns on the purification function, the control system detects the indoor environmental relative humidity value RH, and determines whether the indoor environmental relative humidity value RH satisfies the first threshold condition; if RH satisfies the first threshold condition, work mode 1 is performed, the power supply supplies power to the emission electrode, and a discharge occurs between the emission electrode and the grounding sheet metal; if RH does not satisfy the first threshold condition, work mode 2 is performed, the power supply supplies power to the emission electrode, and a discharge occurs between the emission electrode and the opposing electrode.

[0009] In some embodiments of the air treatment system of the present application, the first threshold condition is that RH reaches the upper limit value of the preset relative humidity value RH1.

[0010] In some embodiments of the air treatment system of the present application, work mode 1 further includes: the power supply continuously supplies power to the emission electrode, and the opposing electrode is in a floating state, and a discharge occurs between the emission electrode and the grounding sheet metal to generate ions.

[0011] In some embodiments of the air treatment system of the present application, work mode 2 further includes: the power supply continuously supplies power to the emission electrode, and the opposing electrode is in a grounded state, and a discharge occurs between the emission electrode and the opposing electrode to generate ions.

[0012] In some embodiments of the air treatment system of the present application, the air treatment system further includes a blower connected to the air outlet passage, the air outlet passage includes an air outlet, and the air treatment system control method further includes: determining whether the air treatment system receives a shutdown instruction, if receiving the shutdown instruction, then controlling the air treatment system to perform work mode 3; work mode 3, controlling the air outlet to close, controlling the blower to rotate in the reverse direction, the power supply continuously supplies power to the emission electrode, and controlling the power supply to make the opposing electrode in a reverse voltage state, a discharge occurs between the emission electrode and the opposing electrode to generate oxides, and the oxides are reversely transported to purify the interior of the air treatment system; when the opposing electrode is in the reverse voltage state, the voltage polarity of the opposing electrode is opposite to the voltage polarity of the emission electrode.

[0013] In some embodiments of the air treatment system of the present application, the blower rotates in the reverse direction at the lowest speed to enable the oxides to be reversely and slowly transported inside the air treatment system.

[0014] In some embodiments of the air treatment system of the present application, it is determined whether the running time T of working mode 3 reaches the upper limit value of the preset time value T1. If the running time T reaches the upper limit value of the preset time value T1, the air treatment system is controlled to shut down.

[0015] In some embodiments of the air treatment system of the present application, working mode 3 further includes: controlling the power supply to make the counter electrode have different reverse voltage values to control the generation amount of oxides.

[0016] In some embodiments of the air treatment system of the present application, an air treatment system includes: a housing in which an air outlet passage is formed, the air outlet passage including an air outlet; an ion generator disposed at the air outlet; a blower connected to the air outlet passage to provide a driving force for air flow; a control system, the ion generator and the blower are respectively connected to the control system; a humidity sensor for detecting the relative humidity RH of the indoor environment, the humidity sensor is connected to the control system; the ion generator includes a counter electrode, an emitting electrode and a power supply, and the counter electrode and the emitting electrode are respectively connected to the power supply.

[0017] In some embodiments of the air treatment system of the present application, the counter electrode and the emitting electrode are disposed opposite to each other or side by side. The number of counter electrodes is one or more, and multiple counter electrodes can be disposed opposite to or side by side with the emitting electrode.

[0018] The air treatment system of the present application has at least the following effects: The air treatment system includes an ion generator and a grounded sheet metal. The ion generator includes a power supply and an emitting electrode and a counter electrode respectively connected to the power supply. The docking electrode is disposed between the grounded sheet metal and the emitting electrode, so that the emitting electrode can discharge with the grounded sheet metal or the counter electrode. The control system can control the ion generator. When the ion generator is turned on for the purification function, ion pairs are generated to sterilize and disinfect the indoor air. The control system detects the relative humidity value RH of the indoor environment and determines whether the relative humidity value RH of the indoor environment meets the first threshold condition. If RH meets the first threshold condition, working mode 1 is performed, and the power supply supplies power to the emitting electrode. The emitting electrode has an electric potential. At this time, the emitting electrode discharges with the relatively distant grounded sheet metal, which can avoid a large amount of ozone or other oxides generated due to a small impedance when the indoor relative humidity is large, and at the same time avoid a large discharge energy, so that the ion generator is in a stable operating state and the power of the power supply is at the lower limit value of the rated power. If RH does not meet the first threshold condition, working mode 2 is performed, and the power supply supplies power to the emitting electrode to make the emitting electrode discharge with the relatively close counter electrode, avoiding insufficient ion amount generated by the ion generator due to a large impedance when the indoor relative humidity is small, and can meet the user's demand for sterilizing and disinfecting the indoor space. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is a schematic diagram of an ion generator and a grounding sheet metal of an air treatment system according to an embodiment of the present application;

[0021] Figure 2 is a schematic diagram of an ion generator and a grounding sheet metal of an air treatment system according to another embodiment of the present application;

[0022] Figure 3 is a schematic diagram of an ion generator and a grounding sheet metal of an air treatment system according to another embodiment of the present application;

[0023] Figure 4 is a flowchart of an air treatment system control method of an air treatment system according to an embodiment of the present application;

[0024] Figure 5 is a flowchart of working mode 1 of an air treatment system according to an embodiment of the present application;

[0025] Figure 6 is a flowchart of working mode 2 of an air treatment system according to an embodiment of the present application;

[0026] Figure 7 is a flowchart of another air treatment system control method of an air treatment system according to an embodiment of the present application;

[0027] Figure 8 is a flowchart of working mode 3 of an air treatment system according to an embodiment of the present application;

[0028] In the above figures: 100, air treatment system;

[0029] 1, ion generator; 11, power supply; 12, emission electrode; 13, counter electrode;

[0030] 2, grounding sheet metal. Detailed implementation manners

[0031] Next, the present invention will be specifically described through exemplary embodiments. However, it should be understood that, without further description, the elements, structures, and features in one embodiment can also be beneficially combined into other embodiments.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 should not be construed as a limitation to the present invention.

[0033] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present application, the air treatment system is an air conditioner or a fresh air unit.

[0035] The air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator, and the refrigeration cycle or the heating cycle is executed through the compressor, the condenser, the expansion valve, and the evaporator. The refrigeration cycle and the heating cycle include a compression process, a condensation process, an expansion process, and an evaporation process, and the cooling capacity or heat is provided to the indoor space through the heat absorption and heat release processes of the refrigerant, so as to realize the temperature adjustment of the indoor space.

[0036] The compressor compresses the refrigerant gas into 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 high-temperature and high-pressure gaseous refrigerant into a liquid refrigerant, and the heat is released to the surrounding environment through the condensation process.

[0037] The liquid refrigerant flowing out of the condenser enters the expansion valve, and the expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The low-pressure liquid refrigerant flowing out of the expansion valve enters the evaporator. When the liquid refrigerant flows through the evaporator, it absorbs heat and evaporates into a low-temperature and low-pressure refrigerant gas, and the refrigerant gas in the low-temperature and low-pressure state returns to the compressor. The evaporator can achieve the refrigeration effect by using the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the whole cycle, the air conditioner can adjust the temperature of the indoor space.

[0038] The air conditioner includes an indoor unit of the air conditioner, an outdoor unit of the air conditioner, and an expansion valve. The indoor unit of the air conditioner includes a compressor and an outdoor heat exchanger. The indoor unit of the air conditioner includes an indoor heat exchanger. The expansion valve can be arranged in the indoor unit of the air conditioner or the outdoor unit of the air conditioner.

[0039] The indoor heat exchanger and the outdoor heat exchanger can be used as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner serves as a heater in the heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner serves as a cooler in the cooling mode.

[0040] The fresh air ventilator is an air treatment device that purifies and thermally processes the fresh air entering the room by exchanging the indoor and outdoor air. The core component of the fresh air ventilator is the total heat exchanger. The polluted air flowing out of the room and the fresh air flowing in from the outside exchange heat and humidity through the total heat exchanger, achieving the effect of introducing fresh air and maintaining the stability of the indoor temperature and humidity, and at the same time realizing the heat recovery of the polluted air flowing out of the room.

[0041] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0042] The present application provides an air treatment system 100, which includes an ion generator 1 that can discharge normally in an environment with high humidity, and can realize the self-cleaning function of the air conditioning treatment system.

[0043] An air treatment system 100 includes a housing, an ion generator 1, a grounded sheet metal 2, and a control system. An air outlet passage is formed inside the housing, and air blows from the air outlet passage into the room. The ion generator 1 is disposed in the air outlet passage formed inside the housing, so that the ions generated by the ion generator 1 can diffuse into the indoor space along with the flowing air in the air outlet passage, realizing the sterilization and disinfection of the indoor air and accelerating the diffusion efficiency of the ions.

[0044] The ion generator 1 includes a power supply 11, and also includes an emission electrode 12 and a counter electrode 13 both connected to the power supply 11. The power supply 11 can provide the electric energy required by the emission electrode 12 and the counter electrode 13, and the emission electrode 12 can discharge with the counter electrode 13 in a grounded state or a reverse voltage state to generate ions.

[0045] The grounded sheet metal 2 is in a grounded state, and the emission electrode 12 can discharge with the grounded sheet metal 2 in a grounded state to generate ions. The counter electrode 13 is disposed between the grounded sheet metal 2 and the emission electrode 12. The distance between the grounded sheet metal 2 and the emission electrode 12 is greater than the distance between the counter electrode 13 and the emission electrode 12. The grounded sheet metal 2 is relatively farther from the emission electrode 12, and the counter electrode 13 is relatively closer to the emission electrode 12.

[0046] The control system is connected to the ion generator 1. The control system can control the power supply 11 to supply power or cut off power to the emission electrode 12 and the counter electrode 13, and can also control the power supply 11 to provide electricity with different potentials to the emission electrode 12 and the counter electrode 13.

[0047] The control method of the air treatment system 100 includes: the ion generator 1 turns on the purification function, and the control system detects the relative humidity value RH of the indoor environment; it is judged whether the relative humidity value RH of the indoor environment meets the first threshold condition; if RH meets the first threshold condition, the working mode 1 is carried out, then the power supply 11 supplies power to the emitting electrode 12, and a discharge occurs between the emitting electrode 12 and the grounding sheet metal 2; if RH does not meet the first threshold condition, the working mode 2 is carried out, then the power supply 11 supplies power to the emitting electrode 12, and a discharge occurs between the emitting electrode 12 and the counter electrode 13.

[0048] Specifically, the control system detects the relative humidity value RH of the indoor environment. The relative humidity value refers to the ratio of the absolute humidity in the air to the saturated absolute humidity at the same temperature. Air can absorb water vapor. When the indoor air absorbs more water vapor, the relative humidity value RH of the indoor environment becomes larger. When the indoor air absorbs less water vapor, the relative humidity value RH of the indoor environment becomes smaller. The relative humidity value of the indoor environment can intuitively reflect the amount of water vapor absorbed in the air.

[0049] When the air absorbs more water vapor, the impedance between the emitting electrode 12 and the counter electrode 13 of the ion generator 1 decreases. Similarly, the impedance between the emitting electrode 12 and the grounding sheet metal 2 also decreases.

[0050] When the relative humidity value RH of the indoor environment meets the first threshold condition, then there is more water vapor in the air at this time and the impedance is smaller. The power supply 11 supplies power to the emitting electrode 12, and the emitting electrode 12 discharges with the grounding sheet metal 2 that is farther away. Compared with the prior art, the distance between the grounding sheet metal 2 and the emitting electrode 12 in this application is farther, which can reduce the ozone or other oxides generated between the grounding sheet metal 2 and the emitting electrode 12 and avoid polluting the environment.

[0051] When the relative humidity value RH of the indoor environment does not meet the first threshold condition, then there is less water vapor in the air at this time and the impedance is larger. The power supply 11 supplies power to the emitting electrode 12, and the emitting electrode 12 discharges with the counter electrode 13 that is closer. The closer distance between the emitting electrode 12 and the counter electrode 13 can generate more ions, which can overcome the larger impedance and achieve the purpose of discharging ions.

[0052] Since the emitting electrode 12 can discharge with the counter electrode 13 at a relatively close distance when the impedance is large, when designing the distance between the emitting electrode 12 and the grounding sheet metal 2 in this application, it is not necessary to consider the discharge situation between the grounding sheet metal 2 and the emitting electrode 12 when the impedance is large. Only how to set the distance to solve the discharge between the grounding sheet metal 2 and the emitting electrode 12 when the impedance is small needs to be considered. Therefore, compared with the prior art, the distance between the emitting electrode 12 and the grounding sheet metal 2 in this application is farther, which can avoid generating a large amount of ozone or oxides, can meet the requirement of the normal operation of the ion generator 1 when the relative humidity value RH in the indoor environment is relatively large, avoid the actual power of the power supply 11 of the ion generator 1 being greater than the rated power due to large discharge energy, protect the ion generator 1, and maintain the stable operation of the ion generator 1. At the same time, when the impedance is large in this application, the emitting electrode 12 is controlled to discharge with the relatively close counter electrode 13, which can overcome the large impedance to generate sufficient ions and can meet the requirement of the normal operation of the ion generator 1 when the relative humidity value RH in the indoor environment is relatively small.

[0053] In some embodiments of this application, the first threshold condition is that RH reaches the upper limit value of the preset relative humidity value RH1. The preset relative humidity value RH1 is set according to the performance parameters and relative positions of the counter electrode 13, the emitting electrode 12, and the grounding sheet metal 2. It should be noted that when the relative humidity value RH in the indoor environment reaches the upper limit value of the preset relative humidity value RH1, the control system determines that the water vapor content in the air is relatively large at this time, and controls the emitting electrode 12 and the grounding sheet metal 2 to perform long-distance discharge. When the relative humidity value RH in the indoor environment reaches the lower limit value of the preset relative humidity value RH1, the control system determines that the water vapor content in the air is relatively small at this time, and controls the emitting electrode 12 and the counter electrode 13 to perform short-distance discharge.

[0054] In some embodiments of this application, the control method of the air treatment system 100 further includes: if RH meets the first threshold condition, the air treatment system 100 enters working mode 1; in working mode 1, the power supply 11 continuously supplies power to the emitting electrode 12, and the counter electrode 13 is in a floating state, and ions are generated by the discharge between the emitting electrode 12 and the grounding sheet metal 2.

[0055] Specifically, when the air treatment system 100 enters working mode 1, the power supply 11 continuously supplies power to the emitting electrode 12, so that the emitting electrode 12 is always in a state with electric potential. The counter electrode 13 is in a floating state, and the emitting electrode 12 cannot discharge with the counter electrode 13. The emitting electrode 12 can only perform long-distance discharge with the grounding sheet metal 2, avoiding generating a large amount of ozone or oxides, avoiding environmental pollution, and making the actual operating power of the power supply 11 of the ion generator 1 always at the lower limit value of the rated power, avoiding the voltage drop of the emitting electrode 12.

[0056] In some embodiments of the present application, the control method of the air treatment system 100 further includes: if the RH does not meet the first threshold condition, the air treatment system 100 operates in working mode 2; in working mode 2, the power supply 11 continuously supplies power to the emitting electrode 12, and the counter electrode 13 is in a grounded state, and ions are generated by discharging between the emitting electrode 12 and the counter electrode 13.

[0057] Specifically, when the air treatment system 100 operates in working mode 2, the power supply 11 continuously supplies power to the emitting electrode 12, so that the emitting electrode 12 is always in a state with electric potential, and the counter electrode 13 is in a grounded state. Since the distance between the emitting electrode 12 and the counter electrode 13 is smaller than the distance between the emitting electrode 12 and the grounding sheet metal 2, the emitting electrode 12 will preferentially discharge with the counter electrode 13 at a short distance, and a large amount of ions can be generated, avoiding the problem of insufficient discharge of the ion generator 1 when the relative humidity of the indoor environment is low.

[0058] In some embodiments of the present application, the air treatment system 100 further includes a blower connected to the air outlet passage. The air outlet passage includes an air outlet. The control method of the air treatment system 100 further includes: judging whether the air treatment system 100 receives a shutdown instruction. If a shutdown instruction is received, the air treatment system 100 is controlled to operate in working mode 3; in working mode 3, the air outlet is controlled to close, the blower is controlled to rotate in the reverse direction, the power supply 11 continuously supplies power to the emitting electrode 12, and the counter electrode 13 is in a reverse voltage state, and oxides are generated by discharging between the emitting electrode 12 and the counter electrode 13, so that the oxides are reversely transported to purify the interior of the air treatment system 100; when the counter electrode 13 is in a reverse voltage state, the voltage polarity of the counter electrode 13 is opposite to the voltage polarity of the emitting electrode 12.

[0059] Specifically, the blower provides the driving force required for the air flow in the air outlet passage, and the air in the air outlet passage flows out from the air outlet to the room.

[0060] An air duct is formed in the housing of the air treatment system 100, and the air duct includes an air outlet passage for sending out air-conditioning air. Since the air carries dust and bacteria, bacteria often adhere to the inner wall and internal components of the air duct. As the air treatment system 100 is used for a long time, the bacteria will be blown into the room with the air flow, affecting the health of the indoor personnel. The control method of the air treatment system 100 of the present application can solve the problem of sterilizing and disinfecting the surface of the air duct and internal components of the air treatment system 100, avoiding the health threat to the human body caused by long-term use.

[0061] When the control system receives a shutdown instruction, the control system controls the air handling system 100 to operate in working mode 3 to perform sterilization, disinfection, and purification treatment on the internal components of the air handling system 100. The control system controls the air outlet of the air outlet passage to close, so that the air handling system 100 cannot exchange with the indoor environment. The control system controls the blower to rotate in the reverse direction, so that the blower drives the air to flow in the reverse direction. The power supply 11 continuously supplies power to the emitting electrode 12, and the emitting electrode 12 always has an electric potential. The control system controls the power supply 11 to output a voltage opposite to that of the emitting electrode 12 to the counter electrode 13. The counter electrode 13 is in a state of reverse voltage. The emitting electrode 12 discharges with the counter electrode 13. Since the counter electrode 13 is in a state of reverse voltage, the emitting electrode 12 can discharge with the counter electrode 13 to generate a large amount of ozone or other oxides, and the strong oxidizing property of the ozone or other oxides is used for purification. Since the blower rotates in the reverse direction and the air flows in the reverse direction, the ozone or other oxides flow with the air to the inside of the air handling system 100, realizing the purification of the inner wall of the air duct and the surface of the internal components of the air handling system 100.

[0062] In some embodiments of the present application, the blower rotates in the reverse direction at the lowest speed, so that the oxides are slowly transported in the reverse direction inside the air handling system 100, enabling the ozone or other oxides to fully contact the inner wall of the air duct and the surface of the internal components, achieving the effect of sterilization and disinfection. Moreover, the ozone or other oxides are easily decomposed at room temperature. During the slow transportation process, the ozone or other oxides can be decomposed, avoiding environmental pollution caused by the overflow of the ozone or other oxides.

[0063] In some embodiments of the present application, it is judged whether the running time T of working mode 3 reaches the upper limit value of the preset time value T1. If the running time T reaches the upper limit value of the preset time value T1, the air handling system 100 is controlled to shut down.

[0064] Specifically, T1 is set to the time when the ozone or other oxides can sufficiently purify the inside of the air handling system 100 and most of the ozone or other oxides are decomposed, so that most of the ozone or other oxides are decomposed inside the air handling system 100, reducing the overflow amount of the ozone or other oxides.

[0065] In some embodiments of the present application, when the air handling system 100 operates in working mode 3, the voltage value of the reverse voltage is controlled to control the generation amount of the ozone or other oxides. When the reverse voltage is large, the generation amount of the ozone or other oxides is large; when the reverse voltage is small, the generation amount of the ozone or other oxides is small. By controlling the generation amount of the ozone or other oxides, the sterilization and disinfection effect on the inside of the air handling system 100 can be satisfied, and the situation that too much ozone or other oxides overflow due to too large a generation amount of the ozone or other oxides can be avoided.

[0066] In some embodiments of the present application, an air treatment system 100 includes a housing, an ion generator 1, a blower, and a control system. An air outlet passage is formed in the housing, and the air outlet passage includes an air outlet. The ion generator 1 is disposed at the air outlet. The blower is communicated with the air outlet passage and is configured to provide a driving force for air flow. The ion generator 1 and the blower are respectively connected to the control system. A humidity sensor is configured to detect the relative humidity RH of the indoor environment, and the humidity sensor is connected to the control system. The ion generator 1 includes an opposed electrode 13, an emitting electrode 12, and a power supply 11. The opposed electrode 13 and the emitting electrode 12 are respectively connected to the power supply 11.

[0067] In some embodiments of the present application, the opposed electrode 13 is disposed opposite to or beside the emitting electrode 12. The emitting electrode 12 includes an emitting head. When the opposed electrode 13 is disposed opposite to the emitting electrode 12, the opposed electrode 13 faces the emitting head. When the opposed electrode 13 is disposed beside the emitting electrode 12, the opposed electrode 13 is disposed on the side of the emitting head. There are various arrangement manners for the opposed electrode 13 and the emitting electrode 12, and the opposed electrode 13 can be installed according to the structure of the air treatment system 100, which can meet different installation requirements.

[0068] In some embodiments of the present application, the number of the opposed electrodes 13 is one or more. The multiple opposed electrodes 13 can be disposed opposite to or beside the emitting electrode 12. The emitting electrode 12 can discharge with the multiple opposed electrodes 13 respectively, which can meet the requirement of generating different amounts of ions by the ion generator 1 and is applicable to various different indoor air purification requirements.

[0069] As described above, the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all of them should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An air treatment system, characterized in that, The air treatment system includes: A housing, within which an air outlet passage is formed, and the air outlet passage includes an air outlet; An ion generator, which is disposed at the air outlet; A blower, which is communicated with the air outlet passage to provide a driving force for air flow; A control system, to which the ion generator and the blower are respectively connected; A humidity sensor, which is used to detect the relative humidity RH of the indoor environment, and the humidity sensor is connected to the control system; The ion generator includes an opposed electrode, an emitting electrode and a power supply, and the opposed electrode and the emitting electrode are respectively connected to the power supply; A grounding sheet metal, the opposed electrode is disposed between the grounding sheet metal and the emitting electrode, and the distance between the grounding sheet metal and the emitting electrode is greater than the distance between the opposed electrode and the emitting electrode.

2. The air treatment system according to claim 1, wherein The opposed electrode and the emitting electrode are oppositely arranged or side-mounted.

3. The control method of the air handling system according to claim 1, characterized in that, Including: The control system detects the relative humidity value RH of the indoor environment and judges whether the relative humidity value RH of the indoor environment meets the first threshold condition; If RH meets the first threshold condition, work mode 1 is carried out, the power supply supplies power to the emitting electrode, and a discharge occurs between the emitting electrode and the grounding sheet metal; If RH does not meet the first threshold condition, work mode 2 is carried out, the power supply supplies power to the emitting electrode, and a discharge occurs between the emitting electrode and the opposed electrode.

4. The control method of the air handling system according to claim 3, characterized in that, Work mode 1 further includes: the power supply continuously supplies power to the emitting electrode, and the opposed electrode is in a floating state, and a discharge occurs between the emitting electrode and the grounding sheet metal to generate ions.

5. The control method of the air treatment system according to claim 3, characterized in that, Work mode 2 further includes: the power supply continuously supplies power to the emitting electrode, and the opposed electrode is in a grounded state, and a discharge occurs between the emitting electrode and the opposed electrode to generate ions.

6. The control method of the air handling system according to claim 3, wherein, Judge whether the air treatment system receives a shutdown instruction. If a shutdown instruction is received, then control the air treatment system to enter work mode 3; Work mode 3: control the air outlet to close, control the blower to rotate in the reverse direction, the power supply continuously supplies power to the emitting electrode, and control the power supply to make the opposed electrode in a reverse voltage state, and a discharge occurs between the emitting electrode and the opposed electrode to generate oxides, and the oxides are reversely transported to purify the interior of the air treatment system; When the opposed electrode is in a reverse voltage state, the voltage polarity of the opposed electrode is opposite to the voltage polarity of the emitting electrode.

7. The control method of the air handling system according to claim 6, characterized in that, The blower rotates in the reverse direction at the lowest speed to enable the oxides to be slowly transported reversely inside the air treatment system.

8. The control method of the air handling system according to claim 6, characterized in that, Judge whether the running time T of work mode 3 reaches the upper limit value of the preset time value T1. If the running time T reaches the upper limit value of the preset time value T1, then control the air treatment system to shut down.

9. The control method of the air handling system according to claim 6, wherein Work mode 3 further includes: Control the power supply to make the opposed electrode at different reverse voltage values to control the generation amount of oxides.

10. The control method of the air handling system according to claim 3, characterized in that, The first threshold condition is that RH reaches the upper limit value of the preset relative humidity value RH1.

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