Air treatment device and control method and control device thereof

Abstract

The invention discloses an air treatment device and a control method and device thereof, and relates to the technical field of air purification. The air treatment device comprises a fresh air duct, a charging module with a discharging part is arranged in the fresh air duct, and the air treatment device has a fresh air purification mode and an anti-condensation mode; the control method of the air treatment device comprises the steps that the anti-condensation mode is started on the basis of the air treatment device, and a first preset electric signal is provided for the charging module so that the discharging part can generate heat. The discharge part of the charge module is electrified and heated, so that the discharge part is prevented from losing efficacy due to condensation.

Description

Technical Field

[0001] The present application relates to, but is not limited to, the field of air purification technology. More specifically, it relates to a control method for an air treatment device, a control device for an air treatment device, and an air treatment device. Background Art

[0002] As people's requirements for the quality of life are getting higher and higher, people use fresh air filters to improve the indoor air quality. The fresh air filter can filter out tiny particles such as dust, pollen, bacteria, and viruses in the air, thereby reducing the concentration of pollutants in the indoor air and allowing people to breathe fresher and healthier air. In addition, the fresh air filter can also effectively prevent the indoor carbon dioxide concentration from being too high, thereby improving people's work and learning efficiency.

[0003] In some cases, fresh air filtration is carried out by cooperating a charging module and an electrostatic precipitator net. Among them, the needle tips of the needle plate / needle cylinder type charging module used may produce condensation and fail. The existing methods for preventing condensation are as follows:

[0004] 1) PTC (Positive Temperature Coefficient) preheating: That is, a PTC heating module is installed near the charging module to process the passing air and reduce the condensation caused by the charging module contacting the hot air. However, this method has a large power consumption and a large volume of the PTC heating module, occupying the air duct and affecting the air volume.

[0005] 2) Needle tip coating: By performing a hydrophobic coating treatment on the needle tips, the condensed water formed by the condensation of water vapor can quickly slide off. However, this technology has a greater impact on the charging effect and is not conducive to charging with high air volume and high-concentration dust. Summary of the Invention

[0006] The main purpose of the embodiments of the present application is to provide a control method for an air treatment device, which can avoid the failure of the discharge part due to condensation by making the discharge part of the charging module energized and heated.

[0007] A control method for an air treatment device provided by an embodiment of the present invention, the air treatment device includes a fresh air duct, and a charging module with a discharge part is arranged in the fresh air duct. The air treatment device has a fresh air purification mode and an anti-condensation mode;

[0008] The control method includes:

[0009] Based on the air treatment device turning on the anti-condensation mode, providing a first preset electrical signal to the charging module to make the discharge part heat up.

[0010] An embodiment of the present invention further provides a control device, which includes a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method described above are implemented.

[0011] An embodiment of the present invention further provides an air treatment device, which includes a fresh air duct, a charging module, and the control device described above. The charging module is disposed in the fresh air duct and includes a discharging part. The control device is electrically connected to the charging module and is configured to control the operation of the charging module.

[0012] After the air treatment device according to the embodiment of the present invention turns on the anti-condensation mode, a first preset electrical signal is provided to the charging module, so that the discharging part of the charging module is energized and heated, avoiding condensation on the discharging part of the charging module when outdoor high-temperature and high-humidity air enters the fresh air duct in the fresh air purification mode, which affects the charging effect of the charging module and further affects the air purification effect.

[0013] In the control method of the air treatment device, the anti-condensation purpose is achieved by energizing the charging module originally used for air purification, without the need to add other structures or modules, with low cost and anti-condensation can be achieved in a short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of a charging module according to an embodiment of the present application;

[0015] Figure 2 is Figure 1 the left-view structural schematic diagram of the charging module shown;

[0016] Figure 3 is Figure 1 the sectional structural schematic diagram of the charging module shown;

[0017] Figure 4 is an internal structural schematic diagram of a charging module according to another embodiment of the present application;

[0018] Figure 5 is Figure 4 the left-view structural schematic diagram of the charging module shown;

[0019] Figure 6 is a structural schematic diagram of an air treatment device according to an embodiment of the present application;

[0020] Figure 7 is Figure 6 the exploded structural schematic diagram of the air treatment device shown;

[0021] Figure 8 is a flowchart of a control method according to an embodiment of the present application.

[0022] Reference numerals:

[0023] 100 - Charging module, 11 - First discharge tip, 21 - Second discharge tip, 3 - Grounding ring, 4 - Bracket, 41 - First bracket, 42 - Second bracket;

[0024] 500 - Housing, 501 - Fresh air inlet, 502 - Return air inlet, 503 - Fresh air outlet, 504 - Baffle, 505 - Fresh air duct;

[0025] 600 - Fan, 700 - Electrostatic dust collection module. Specific embodiments

[0026] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0027] The embodiment of the present application provides a control method for an air treatment device.

[0028] As Figures 1 - 7 shown, the air treatment device includes a fresh air duct 505. A charging module 100 with a discharge part is provided in the fresh air duct 505, and the discharge part can be a discharge tip (such as the first discharge tip 11 and / or the second discharge tip 21). The air treatment device has a fresh air purification mode and an anti - condensation mode. Among them, in the fresh air purification mode, outdoor fresh air can enter the fresh air duct 505 and enter the room after being purified by the purification devices (such as: the charging module 100, the electrostatic dust collection module 700, etc.) in the fresh air duct 505.

[0029] In summer, due to the temperature difference and humidity difference between indoor and outdoor air (such as: in summer, the outdoor temperature is high and the humidity is high, while the indoor temperature is low and the humidity is low), condensation is likely to occur at the discharge tips (discharge parts) of the charging module 100, resulting in the failure of the discharge tips of the charging module 100, and further affecting the purification effect of the fresh air. Therefore, the air treatment device also has an anti - condensation mode. In the anti - condensation mode, condensation at the discharge tips of the charging module 100 can be prevented.

[0030] The control method of the air treatment device includes:

[0031] Based on the air treatment device turning on the anti - condensation mode, a first preset electrical signal is provided to the charging module to make the discharge tip (discharge part) heat up.

[0032] After the air treatment device turns on the anti - condensation mode, a first preset electrical signal is provided to the charging module 100, so that the discharge tips (discharge parts) of the charging module 100 are energized and heated, avoiding condensation at the discharge tips of the charging module 100 when the outdoor high - temperature and high - humidity air enters the fresh air duct 505 in the fresh air purification mode, which affects the charging effect of the charging module 100 and further affects the purification effect of the air.

[0033] In the control method of the air treatment device, the purpose of preventing condensation is achieved by energizing the charging module 100 originally used for air purification, without the need to add other structures or modules, with low cost, and condensation prevention can be achieved in a short time.

[0034] In some exemplary embodiments, the first preset electrical signal is a pulsed electrical signal. For example, the first preset electrical signal can be a high-frequency pulsed high-voltage electrical signal.

[0035] By inputting a high-frequency pulsed high-voltage electrical signal to the charging module 100, arc discharge is generated at the discharge tip, causing the discharge tip to heat up and generate plasma, preventing the outdoor high-temperature and high-humidity air from entering the charging module 100 and causing condensation. Since only the pulsed high-voltage electrical signal needs to be set in the control device to achieve condensation prevention, without adding structures or modules, the cost is low, and the power is low, and it can be achieved in a short time.

[0036] In some exemplary embodiments, the frequency of the pulsed electrical signal is 5 kHz to 20 kHz, the voltage value of the pulsed electrical signal is 10 kV - 20 kV, and the duty cycle of the pulsed electrical signal is 20% - 70%. For example: in a specific embodiment, the frequency of the pulsed electrical signal is 10 kHz, the voltage value of the pulsed electrical signal is 15 kV, and the duty cycle of the pulsed electrical signal is 50%.

[0037] Of course, the pulsed electrical signal adopted by the first preset electrical signal is not limited to the above, and can also be adjusted according to actual needs.

[0038] In some exemplary embodiments, the control method of the air treatment device further includes:

[0039] Based on the air treatment device being in the fresh air purification mode, determining whether the air treatment device reaches the preset condensation prevention condition; and

[0040] Based on the air treatment device reaching the condensation prevention condition, controlling the air treatment device to turn on the condensation prevention mode.

[0041] When the fresh air purification mode is turned on, the control device can collect the environmental information of the location where the air treatment device is located or the working parameter information of the air treatment device, and determine whether to turn on the condensation prevention mode according to this information. Among them, when the collected information reaches the preset condensation prevention condition, the air treatment device is controlled to turn on the condensation prevention mode, and a high-frequency pulsed electrical signal is input to the charging module 100 to prevent the charging module 100 from generating condensation.

[0042] Of course, after the air treatment device turns on the fresh air purification mode, it is also possible not to determine whether the air treatment device reaches the condensation prevention mode, but directly enter the condensation prevention mode first, and then exit the condensation prevention mode and enter the fresh air purification mode after the condensation prevention mode ends.

[0043] In some exemplary embodiments, the anti-condensation condition includes that the temperature and humidity of the outdoor air are higher than those of the indoor air.

[0044] As Figure 8 shown, when the fresh air purification mode is turned on, the control device can collect the temperature and humidity information of the outdoor and indoor air. Only when the temperature and humidity of the outdoor air are higher than those of the indoor air, the anti-condensation mode is turned on.

[0045] Of course, after the air treatment device turns on the fresh air purification mode, it is also possible not to judge the temperature and humidity difference between the indoor and outdoor air, but directly enter the anti-condensation mode, and then exit the anti-condensation mode and enter the fresh air purification mode after the anti-condensation mode ends.

[0046] In some exemplary embodiments, as Figure 6 and Figure 7 shown, a fan 600 and an electrostatic dust collection module 700 are further provided in the fresh air duct 505. The fan 600 and the electrostatic dust collection module 700 can be located downstream of the charging module 100. Among them, in the fresh air purification mode, the fan 600 works, and the electrostatic dust collection module 700 and the charging module 100 can be powered on to work. Under the action of the fan 600, the outdoor fresh air can enter the fresh air duct 505. The discharge tip of the charging module 100 can discharge, and make the PM2.5, bacteria, dust, pollen and other particulate matters in the fresh air duct 505 charged (electrified), so that bacteria and the like are inactivated; the electrostatic dust collection module 700 can form an electric field by using high voltage static electricity to adsorb the charged particulate matters, so that the particulate matters in the air are adsorbed onto the electrostatic dust collection module 700 to achieve the effect of purifying the air.

[0047] Based on this, as Figure 8 shown, the control method of the air treatment device further includes:

[0048] Based on the air treatment device turning on the anti-condensation mode, control the fan and the electrostatic dust collection module to stop working.

[0049] After the air treatment device enters the anti-condensation mode, the fan 600 stops working to prevent the air flow in the fresh air duct 505 under the action of the fan 600 from affecting the discharge tip of the charging module 100 from quickly heating up in a short time, thereby affecting the anti-condensation effect; after the air treatment device enters the anti-condensation mode, there is no need to perform dust removal operation. Therefore, the electrostatic dust collection module 700 can stop working to reduce power consumption.

[0050] In some exemplary embodiments, the control method of the air treatment device further includes:

[0051] Based on the air treatment device reaching the preset anti-condensation exit condition, control the air treatment device to exit the anti-condensation mode.

[0052] After the air treatment device activates the anti-condensation mode, the control device can collect the working parameter information of the air treatment device and determine whether to exit the anti-condensation mode based on this information. Among them, when the collected information meets the preset anti-condensation exit condition, the air treatment device can be controlled to exit the anti-condensation mode and enter the fresh air purification mode.

[0053] In some exemplary embodiments, the anti-condensation exit condition includes that the duration of the anti-condensation mode reaches a first preset duration. Among them, the first preset duration can be 10 s (seconds) to 60 s. For example, it can be 10 s, 20 s, 30 s, 40 s, 50 s, 60 s, etc.

[0054] As Figure 8 shown, when the duration of the anti-condensation mode reaches 10 s to 60 s, that is, the discharge tip of the charge module 100 continuously heats up for 10 s to 60 s, the air treatment device can be controlled to exit the anti-condensation mode and enter the fresh air purification mode.

[0055] It should be understood that in addition to controlling the air treatment device to exit the anti-condensation mode according to the duration, the air treatment device can also be controlled to exit the anti-condensation mode in other ways. For example, it can be controlled by measuring whether the temperature of the discharge tip reaches a preset temperature (that is, the anti-condensation exit condition includes that the temperature of the discharge tip reaches the preset temperature (such as: 100 °C)), detecting whether there is condensed water on the discharge tip (that is, the anti-condensation exit condition includes that there is no condensed water on the discharge tip), etc. to control the heating time of the discharge tip. When the temperature of the discharge tip reaches the preset temperature, it indicates that there is no condensed water on the discharge tip; or after detecting that there is no condensed water on the discharge tip, the air treatment device can be controlled to exit the anti-condensation mode.

[0056] In some exemplary embodiments, as Figure 8 shown, the control method of the air treatment device further includes:

[0057] Based on the air treatment device exiting the anti-condensation mode and activating the fresh air purification mode, control the fan to start and provide a second preset electrical signal to the charge module and a third preset electrical signal to the electrostatic dust collection module.

[0058] After the air treatment device exits the anti-condensation mode, it can enter the fresh air purification mode. In the fresh air purification mode, the fan 600 works, and the electrostatic dust collection module 700 and the charge module 100 can be powered on to work. The outdoor fresh air can enter the fresh air duct 505 under the action of the fan 600. The discharge tip of the charge module 100 can discharge to charge (electrify) the PM2.5, bacteria, dust, pollen and other particulate matters in the fresh air duct 505, so that the particulate matters are adsorbed onto the electrostatic dust collection module 700 to achieve the effect of purifying the air.

[0059] In some exemplary embodiments, the second preset electrical signal is a direct current electrical signal with a voltage value in the range of -3 kV to 12.5 kV, and the third preset electrical signal is a direct current electrical signal with a voltage value in the range of -5 kV to 15 kV. Among them, the second preset electrical signal can be a direct current electrical signal with a voltage value of -8.5 kV, and the third preset electrical signal can be a direct current electrical signal with a voltage value of -10.5 kV.

[0060] After the air treatment device enters the fresh air purification mode, a regulated high voltage can be respectively input to the electrostatic dust collection module 700 and the charging module 100, and the regulated high voltages can be -10.5 kV and -8.5 kV respectively, so that the electrostatic dust collection module 700 and the charging module 100 cooperate to achieve the air purification function.

[0061] Of course, the second preset electrical signal and the third preset electrical signal are not limited to the above, and can also be adjusted according to actual needs.

[0062] The embodiment of the present application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method provided in any of the above embodiments are implemented.

[0063] The embodiment of the present application also provides an air treatment device, as Figures 1 - 7 shown, including a fresh air duct 505, a charging module 100, and the control device provided in the above embodiment. The charging module 100 is arranged in the fresh air duct 505 and includes a discharge part, and the discharge part can be a discharge tip. The control device is electrically connected to the charging module 100 and is configured to control the operation of the charging module 100.

[0064] In this air treatment device, the control device can control the charging module 100 to be energized and operate in the anti-condensation mode to prevent the charging module 100 from generating condensation; the control device can also control the charging module 100 to be energized and operate in the fresh air purification mode to purify the fresh air entering from the outside.

[0065] In some exemplary embodiments, as Figure 6 and Figure 7 shown, the air treatment device further includes a fan 600 and an electrostatic dust collection module 700. Both the fan 600 and the electrostatic dust collection module 700 are arranged in the fresh air duct 505 and are located downstream of the charging module 100; both the fan 600 and the electrostatic dust collection module 700 are electrically connected to the control device, and the control device is configured to control the operation of the fan 600 and the electrostatic dust collection module 700.

[0066] In this air treatment device, the control device can control the fan 600 and the electrostatic dust collection module 700 to pause operation in the anti-condensation mode; the control device can also control the fan 600 and the electrostatic dust collection module 700 to be energized and operate in the fresh air purification mode to purify the fresh air entering from the outside.

[0067] In some exemplary embodiments, the electrostatic dust collection module 700 may include an electrostatic dust collection net. The electrostatic dust collection module 700 is a module that forms an electric field by using high-voltage static electricity to adsorb charged particulate matter. The electrostatic dust collection module 700 may be provided with a high-voltage electrode and a low-voltage electrode, and the high-voltage electrode and the low-voltage electrode may be switched and inverted according to a program. In a conventional dust removal state (fresh air purification mode), the electrostatic dust collection module 700 may input a regulated high-voltage electrical signal.

[0068] In some exemplary embodiments, the air treatment device further includes: a first temperature and humidity sensor and a second temperature and humidity sensor. The first temperature and humidity sensor is configured to detect the temperature and humidity of the outdoor air, and the second temperature and humidity sensor is configured to detect the temperature and humidity of the indoor air.

[0069] Both the first temperature and humidity sensor and the second temperature and humidity sensor are electrically connected to the control device. The control device can collect the temperature and humidity information of the outdoor and indoor air detected by the first temperature and humidity sensor and the second temperature and humidity sensor. When and only when the temperature and humidity of the outdoor air are higher than those of the indoor air, the control device controls the air treatment device to enter the anti-condensation mode, controls the fan 600 and the electrostatic dust collection module 700 to suspend operation, and inputs a high-frequency pulsed high-voltage electrical signal to the charging module 100.

[0070] In some exemplary embodiments, the charging module 100 may be a plasma charging module, such as: a needle-plate plasma charging module, a needle-cylinder plasma charging module, or other high-voltage tip discharge modules. The discharge tip of the charging module 100 may be made of a conductive material, such as: stainless steel, tungsten, carbon fiber, etc. The discharge tip is preferably made of a stainless steel needle.

[0071] In some exemplary embodiments, as Figures 1 - 5 shown, the discharge part may include a first discharge part and a second discharge part. The first discharge part faces the incoming air side, and the second discharge part faces the outgoing air side. Among them, the first discharge part may be the first discharge tip 11, and the second discharge part may be the second discharge tip 21, that is, the discharge tip may include the first discharge tip 11 and the second discharge tip 21, and the first discharge tip 11 faces the incoming air side, and the second discharge tip 21 faces the outgoing air side.

[0072] Of course, the discharge tip may also include only the first discharge tip 11, or only the second discharge tip 21.

[0073] In some exemplary embodiments, as Figures 1 - 5As shown, the charging module 100 further includes a bracket 4. The first discharge tip 11 and the second discharge tip 21 are both mounted to the bracket 4, and the first discharge tip 11 and the second discharge tip 21 are arranged to face away from each other, so that the first discharge tip 11 and the second discharge tip 21 face opposite directions respectively. Among them, the first discharge tip 11 is arranged to face the incoming wind side, and the second discharge tip 21 is arranged to face the outgoing wind side( Figure 1 The direction indicated by the arrow in is the wind direction). It should be understood that the first discharge tip 11 facing the incoming wind side means that the first discharge tip 11 faces the upstream incoming wind side, rather than the first discharge tip 11 pointing to the air inlet port of the fresh air duct; the second discharge tip 21 facing the outgoing wind side means that the second discharge tip 21 faces the downstream outgoing wind side (or the wind removal side), rather than the second discharge tip 21 pointing to the air outlet port of the fresh air duct.

[0074] When the charging module 100 works, the first discharge tip 11 can discharge electricity, and charge the PM2.5, bacteria, dust, pollen and other particulate matters in the air in the fresh air duct, so that bacteria and the like are inactivated, which is convenient for the particulate matters in the air to be adsorbed onto the electrostatic dust collection module in the fresh air duct, so as to achieve the effect of purifying the air.

[0075] However, when the first discharge tip 11 works and discharges electricity, it will generate an ionic wind. The ionic wind will cause an increase in the resistance in the fresh air duct, a decrease in the static pressure, and the ionic wind will cancel out part of the incoming air in the fresh air duct, resulting in a decrease in the incoming air volume. In order to prevent the loss of incoming air, a second discharge tip 21 is added. The ionic wind generated when the second discharge tip 21 and the first discharge tip 11 work can cancel each other out, so as not to affect the overall static pressure and incoming air volume of the fresh air duct. In addition, the second discharge tip 21 can also discharge electricity to charge the PM2.5, bacteria, dust, pollen and other particulate matters in the air, improving the air purification effect.

[0076] The charging module 100 of the embodiment of the present application performs a two-way charging effect through the first discharge tip 11 and the second discharge tip 21. Therefore, compared with the charging module only having the first discharge tip 11 or the second discharge tip 21, in the fresh air purification mode, the high-voltage static electricity supplied to the charging module 100 of the embodiment of the present application can be reduced by 40%, that is, it can achieve the same charging and air purification effects as the charging module having the first discharge tip 11 or the second discharge tip 21 (for example: under the condition that the supply voltage is -6 kV, the charging module 100 of the embodiment of the present application can achieve the effect of the charging module having the first discharge tip 11 or the second discharge tip 21 at -10.5 kV); and when the voltage of the first discharge tip 11 of the charging module 100 of the embodiment of the present application is the same as that of the charging module having the first discharge tip 11 or the second discharge tip 21, the primary filtration efficiency of the charging module 100 of the embodiment of the present application is increased by more than 20%.

[0077] Since the voltage used by the charging module 100 in the fresh air purification mode of the embodiment of the present application is relatively low, the charging effect of the high voltage of the charging module 100 on other electrical components of the whole air handling device can be reduced; and since the voltage used by the charging module 100 in the embodiment of the present application is reduced, the generation amount of ozone can be reduced, and the generation amount of ozone can be reduced by more than 30%, reducing the generation of intermediate by-products.

[0078] In some exemplary embodiments, such as Figures 1 - 5 shown, the charging module 100 further includes a grounding ring 3, and both the first discharge tip 11 and the second discharge tip 21 are disposed within the grounding ring 3 and extend along the axial direction of the grounding ring 3.

[0079] The charging module 100 further includes a grounding ring 3. The grounding ring 3 is annular, and its voltage can be regarded as zero. Both the first discharge tip 11 and the second discharge tip 21 are disposed within the grounding ring 3 and extend along the axial direction of the grounding ring 3. Thus, after a high voltage is applied to the first discharge tip 11 and the second discharge tip 21, the first discharge tip 11 and the second discharge tip 21 can discharge, so that the particulate matter in the air passing through the grounding ring 3 is charged, facilitating the subsequent electrostatic dust collection module to adsorb the charged particulate matter.

[0080] In some exemplary embodiments, such as Figures 1 - 5 shown, the grounding ring 3 is circular, the first discharge tip 11 and the second discharge tip 21 are disposed at the center of the grounding ring 3, and the first discharge tip 11 and the second discharge tip 21 are symmetrically arranged.

[0081] The grounding ring 3 is circular, the first discharge tip 11 and the second discharge tip 21 are disposed at the center of the grounding ring 3, and both the first discharge tip 11 and the second discharge tip 21 extend along the axial direction of the grounding ring 3 and are symmetrically arranged. With such an arrangement, the distance from the first discharge tip 11 to the inner peripheral surface of the grounding ring 3 is equal, and the distance from the second discharge tip 21 to the inner peripheral surface of the grounding ring 3 is equal, which is conducive to realizing uniform discharge of the first discharge tip 11 and the second discharge tip 21 in all directions, so that the particulate matter in the air passing through the grounding ring 3 is charged, facilitating the subsequent adsorption of the charged particulate matter.

[0082] In some exemplary embodiments, the bracket 4 is an insulating bracket and is fixed to the grounding ring 3.

[0083] The bracket 4 can be an insulating bracket and can be fixed to the grounding ring 3 so that the first discharge tip 11 and the second discharge tip 21 mounted on the insulating bracket are fixed within the grounding ring 3.

[0084] Of course, the bracket 4 may not be fixed to the grounding ring 3 but may be fixed to other components.

[0085] In some exemplary embodiments, such asFigure 4 and Figure 5 As shown in Figure 5 , the bracket 4 includes a first bracket 41 and a second bracket 42. Both the first bracket 41 and the second bracket 42 are fixed to the grounding ring 3. The first discharge tip 11 is mounted on the first bracket 41, and the second discharge tip 21 is mounted on the second bracket 42.

[0086] The bracket 4 can be a split structure, which may include a first bracket 41 and a second bracket 42. Both the first bracket 41 and the second bracket 42 are insulating brackets, and both can be fixed to the grounding ring 3. The first discharge tip 11 and the second discharge tip 21 can be respectively mounted on the first bracket 41 and the second bracket 42, so as to support and fix the first discharge tip 11 and the second discharge tip 21 respectively through the first bracket 41 and the second bracket 42.

[0087] Of course, in addition to being a split structure including a first bracket 41 and a second bracket 42, the bracket 4 can also be an integral structure, that is, the bracket 4 is an integral part, and both the first discharge tip 11 and the second discharge tip 21 are mounted on the integral bracket 4.

[0088] In some exemplary embodiments, the air treatment device may further include a power supply module, which is configured to supply power to the first discharge tip 11 and the second discharge tip 21 of the charge module 100, and in the fresh air purification mode, the voltage of the first discharge tip 11 is set to be not lower than the voltage of the second discharge tip 21.

[0089] The power supply module can be a high-voltage package, which can supply power to the first discharge tip 11 and the second discharge tip 21. Since the main purpose of the first discharge tip 11 working is to charge the particulate matter in the air to ensure the air purification effect, and the setting of the second discharge tip 21 is mainly to eliminate the influence of the ion wind generated by the first discharge tip 11 on the wind pressure and air volume, and if the voltage of the second discharge tip 21 is too high, arcing or glow discharge will occur, resulting in an increase in the amount of ozone generated. Therefore, the voltage of the first discharge tip 11 is set to be not lower than (higher than or equal to) the voltage of the second discharge tip 21.

[0090] In some exemplary embodiments, in the fresh air purification mode, the voltage of the first discharge tip 11 can be 1 to 2 times the voltage of the second discharge tip 21. For example: the voltage of the first discharge tip 11 can be 1.1 times, 1.2 times, 1.3 times, 1.4 times, 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times or 2 times the voltage of the second discharge tip 21, etc.

[0091] The voltage of the first discharge tip 11 being 1 to 2 times the voltage of the second discharge tip 21 not only ensures the charging and purification effect of the particulate matter in the air, but also the wind pressure and air volume can meet the requirements, and no arcing or glow discharge and other phenomena will occur at the second discharge tip 21.

[0092] Of course, according to actual needs, the relationship between the voltages of the first discharge tip 11 and the second discharge tip 21 can also be adjusted, such as: in the fresh air purification mode, the voltage of the first discharge tip 11 is greater than twice the voltage of the second discharge tip 21 .

[0093] In some exemplary embodiments, in the fresh air purification mode, the voltage range of the first discharge tip 11 and the second discharge tip 21 is -3 kV to 12.5 kV.

[0094] The voltage range of the first discharge tip 11 and the second discharge tip 21 is -3kV to 12.5kV. For example, the voltage of the first discharge tip 11 can be -6kV, and the voltage of the second discharge tip 21 can be -3kV. In this case, the voltage of the first discharge tip 11 is twice that of the second discharge tip 21.

[0095] Of course, the voltage range of the first discharge tip 11 and the second discharge tip 21 is not limited to the above-mentioned -3 kV to 12.5 kV, and can also be adjusted according to actual needs.

[0096] In some exemplary embodiments, the power supply module may also supply power to the charging module 100 in the decondensation mode, and the power supply module may also supply power to the electrostatic dust collection module.

[0097] In some exemplary embodiments, Figure 1 , Figures 3 - 4 As shown, the first discharge tip 11 and the second discharge tip 21 are conical, the conical tip can be used for discharge, and the other end of the cone away from the tip is mounted on the bracket 4.

[0098] The first discharge tip 11 and the second discharge tip 21 may be tapered (e.g., conical), and the tip of the tapered tip may be used for discharge and may be directed toward the incoming air side and the outgoing air side of the fresh air duct respectively; the thicker other end of the tapered tip away from the tip may be mounted to the bracket 4. The charging module 100 with dual discharge tips may be a dual-end needle tip plasma charging module.

[0099] Of course, the first discharge tip 11 and the second discharge tip 21 may be in other shapes besides being conical, for example, the first discharge tip 11 and the second discharge tip 21 may be wire-shaped electrode wires.

[0100] In some exemplary embodiments, Figures 1 - 5As shown, the charged module 100 mainly consists of a first discharge tip 11 and its first bracket 41, a second discharge tip 21 and its second bracket 42, a grounding ring 3, etc. The first discharge tip 11 points to the incoming wind side, and the second discharge tip 21 points to the outgoing wind side; the first bracket 41 and the second bracket 42 can be combined, that is, the first bracket 41 and the second bracket 42 can be an integral structure, or the first bracket 41 and the second bracket 42 can also be two independent components.

[0101] The first discharge tip 11 and the second discharge tip 21 can be independently powered (for example: the power supply module can include two power sources, respectively powering the first discharge tip 11 and the second discharge tip 21) or share a power source (for example: the power supply module can only include one power source, which can be used to power the first discharge tip 11 and can also be used to power the second discharge tip 21). Preferably, the first discharge tip 11 and the second discharge tip 21 are independently powered.

[0102] The first discharge tip 11 and the second discharge tip 21 can be tungsten needles, stainless steel needles and needles made of other metal materials. The grounding ring 3 can be made of stainless steel or other metal materials.

[0103] In some exemplary embodiments, the air treatment device can be an air conditioner. As Figure 6 and Figure 7 shown, the indoor unit of the air conditioner includes a housing 500. The housing 500 can include a fresh air inlet 501, a return air inlet 502 and a fresh air outlet 503; a fresh air duct 505 can be provided inside the housing 500. The fresh air inlet 501 and the return air inlet 502 can both communicate with the inlet port of the fresh air duct 505, and the fresh air outlet 503 can communicate with the outlet port of the fresh air duct 505. The fan 600, the charged module 100, the electrostatic dust collection module 700, etc. are all arranged inside the fresh air duct 505.

[0104] A movable baffle (such as a rotatable baffle) 504 is provided inside the housing 500. When the baffle 504 moves, it can achieve the communication between the fresh air inlet 501 and the inlet port of the fresh air duct 505, or achieve the communication between the return air inlet 502 and the inlet port of the fresh air duct 505. The fresh air inlet 501 can be connected to the outside through a fresh air pipe. Outdoor fresh air can enter the fresh air duct 505 from the fresh air inlet 501 through the fresh air pipe, and after being purified by the charged module 100 and the electrostatic dust collection module 700, it is discharged into the room from the air outlet 503; indoor air can enter the fresh air duct 505 from the return air inlet 502, and after being purified by the charged module 100 and the electrostatic dust collection module 700, it is discharged into the room from the fresh air outlet 503.

[0105] Among them, along the air flow direction in the fresh air duct 505, the charged module 100, the fan 600, and the electrostatic dust collection module 700 can be arranged in sequence. An air conditioner net can also be provided in the fresh air duct 505, and the air conditioner net can be located between the charged module 100 and the electrostatic dust collection module 700 to pre-filter the air.

[0106] In this air conditioner, through the organic combination of the charged module 100 with double discharge tips, the electrostatic dust collection module 700, the control device, etc., the dust in the air (especially fresh air) can be filtered without consumables and efficiently.

[0107] Of course, the air treatment device can also be other products capable of treating air, such as air purifiers, air humidifiers, etc.

[0108] In summary, the air treatment device of the embodiment of the present application includes a fresh air inlet, a fresh air outlet with a wind valve, a fresh air duct connected between the fresh air inlet and the fresh air outlet, and a charged module, a fan, an electrostatic dust collection module, a first temperature and humidity sensor, a second temperature and humidity sensor, an air conditioner net (which can be arranged between the charged module and the electrostatic dust collection module for pre-filtering), etc. provided in the fresh air duct.

[0109] In the anti-condensation mode, the fan and the electrostatic dust collection module suspend operation, and the control device inputs high-frequency pulsed high voltage to the charged module, causing arc discharge at the discharge tips of the plasma charged module, making the discharge tips heat up and generate plasma. When the discharge tips continuously heat up for 10 s to 60 s (the first preset duration), preferably 20 s later, the fan starts, and the electrostatic dust collection module and the charged module are input with stabilized high voltage again. The high-frequency pulsed high voltage signal is: frequency: 10 kHz, voltage: 15 kV, duty cycle: 50%; the stabilized high voltages of the electrostatic dust collection module and the charged module are -10.5 kV and -8.5 kV respectively.

[0110] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and 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 of the present invention.

[0111] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0112] In the present invention, unless otherwise clearly defined and limited, the terms such as "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. 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.

[0113] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0114] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0115] Those of ordinary skill in the art will understand that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, and their appropriate combinations. In the hardware implementation, the division between the functional modules / units mentioned above does not necessarily correspond to the division of physical components; for example, one physical component can have multiple functions, or one function or step can be executed by several physical components in cooperation. Some or all of the components can be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include a computer storage medium (or non-transitory medium) and a communication medium (or transitory medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information, such as computer-readable instructions, data structures, program modules, or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, a communication medium typically contains computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transmission mechanism, and can include any information delivery medium.

[0116] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a particular sequence of steps. However, to the extent that the method or process does not depend on the particular order of the steps described herein, the method or process should not be limited to the particular order of steps described. As will be understood by those of ordinary skill in the art, other step sequences are possible. Therefore, the particular order of steps set forth in the specification should not be construed as a limitation on the claims. In addition, the claims directed to the method and / or process should not be limited to the steps being executed in the order written, as those skilled in the art can readily understand that these orders can vary and still remain within the spirit and scope of the embodiments of the present application.

[0117] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A control method for an air handling device, characterized in that, The air treatment device includes a fresh air duct, and a charged module with a discharge part is arranged in the fresh air duct. The air treatment device has a fresh air purification mode and a condensation prevention mode; The control method includes: Based on the air treatment device turning on the condensation prevention mode, providing a first preset electrical signal to the charged module to make the discharge part generate heat.

2. The control method according to claim 1, characterized in that, The first preset electrical signal is a pulsed electrical signal.

3. The control method according to claim 2, characterized in that The frequency of the pulsed electrical signal is 5 kHz to 20 kHz, the voltage value of the pulsed electrical signal is 10 kV - 20 kV, and the duty cycle of the pulsed electrical signal is 20% - 70%.

4. The control method according to claim 1, characterized in that, It further includes: Based on the air treatment device being in the fresh air purification mode, determining whether the air treatment device meets the preset condensation prevention condition; and Based on the air treatment device meeting the condensation prevention condition, controlling the air treatment device to turn on the condensation prevention mode.

5. The control method according to claim 4, wherein The condensation prevention condition includes that the temperature and humidity of the outdoor air are higher than those of the indoor air.

6. The control method according to any one of claims 1 to 5, characterized in that A fan and an electrostatic dust collection module are further arranged in the fresh air duct, and the fan and the electrostatic dust collection module are located downstream of the charged module; The control method further includes: Based on the air treatment device turning on the condensation prevention mode, controlling the fan and the electrostatic dust collection module to stop working.

7. The control method according to claim 6, wherein It further includes: Based on the air treatment device exiting the condensation prevention mode and turning on the fresh air purification mode, controlling the fan to start, and providing a second preset electrical signal to the charged module and a third preset electrical signal to the electrostatic dust collection module.

8. The control method according to claim 7, wherein The second preset electrical signal is a direct current electrical signal with a voltage value in the range of -3 kV to 12.5 kV, and the third preset electrical signal is a direct current electrical signal with a voltage value in the range of -5 kV to 15 kV.

9. The control method according to any one of claims 1 to 5, characterized in that It further includes: Based on the air treatment device meeting the preset condition for exiting the condensation prevention mode, controlling the air treatment device to exit the condensation prevention mode.

10. The control method according to claim 9, characterized in that, The condition for exiting the condensation prevention mode includes that the continuous duration of the condensation prevention mode reaches a first preset duration.

11. The control method according to claim 10, wherein The first preset duration is 10 s to 60 s.

12. A control device, characterized in that, It includes a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method as described in any one of claims 1 to 11 are implemented.

13. An air treatment device, characterized in that, It includes a fresh air duct, a charged module, and the control device as described in claim 12. The charged module is arranged in the fresh air duct and includes a discharge part. The control device is electrically connected to the charged module and is configured to control the operation of the charged module.

14. The air treatment device according to claim 13, characterized in that, A fan and an electrostatic dust collection module are further included. The fan and the electrostatic dust collection module are both arranged in the fresh air duct and are located downstream of the charged module; The fan and the electrostatic dust collection module are both electrically connected to the control device, and the control device is configured to control the operation of the fan and the electrostatic dust collection module.

15. The air treatment device according to claim 13, wherein, It further includes: A first temperature and humidity sensor configured to detect the temperature and humidity of the outdoor air; and A second temperature and humidity sensor configured to detect the temperature and humidity of the indoor air; The first temperature and humidity sensor and the second temperature and humidity sensor are both electrically connected to the control device.

16. The air handling device according to any one of claims 13 to 15, characterized in that, The discharge part includes a first discharge part and a second discharge part. The first discharge part faces the incoming wind side, and the second discharge part faces the outgoing wind side.

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