Purification module, air treatment device and control method

Abstract

The invention discloses a purification module, an air treatment device and a control method, and relates to the technical field of air purification. The purification module comprises a charging module, the charging module comprises a support, a first discharging part and a second discharging part, the first discharging part and the second discharging part are both installed on the support, and the discharging end of the first discharging part and the discharging end of the second discharging part are arranged away from each other; the charging module is arranged in an air duct, the discharging end of the first discharging part is arranged to face the air incoming side, and the discharging end of the second discharging part is arranged to face the air outlet side. And the purification module comprises a charge module with double discharge parts, so that pollutants in the air can be efficiently filtered without consumables.

Description

Technical Field

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

[0002] As people's requirements for quality of life become higher and higher, people use fresh air filters to improve indoor air quality. Fresh air filters 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, fresh air filters can also effectively prevent excessive indoor carbon dioxide concentrations, thereby improving people's work and study efficiency.

[0003] At present, the fresh air filtration technology mainly adopts HEPA (High efficiency particulate air Filter) filtration technology and glass fiber filters, among which HEPA filters are generally used for civilian use, and glass fiber filters are generally used in industrial dust-free workshops.

[0004] However, HEPA fresh air filtration technology has the following shortcomings:

[0005] 1) Replace consumables: After long-term use, the HEPA filter will be clogged due to dust accumulation on the surface. If it is not replaced for a long time, bacteria will grow on the surface of the material, and the air blown out will also produce odor. HEPA filters cannot be washed and regenerated, so HEPA filters need to be replaced regularly. Due to the limited space of the air conditioner's hanging unit (indoor unit), the size of the fresh air filter HEPA net is often relatively small and the dust holding capacity is low, so the replacement cycle of the hanging unit's fresh air HEPA is shorter.

[0006] 2) High resistance and low air volume: Since the HEPA net is made of melt-blown fibers, the fiber gap is small and the air resistance is high. Therefore, when using the HEPA net for filtration, the air resistance increases sharply and the fresh air volume decreases sharply, seriously affecting the user experience. Summary of the invention

[0007] The main purpose of the embodiments of the present application is to provide a purification module that can filter pollutants in the air efficiently without consumables.

[0008] The embodiments of the present application also provide an air treatment device and a control method.

[0009] A purification module provided by an embodiment of the present invention includes:

[0010] A charging module, comprising a bracket, a first discharge part and a second discharge part, wherein the first discharge part and the second discharge part are both mounted to the bracket, and discharge ends of the first discharge part and the second discharge part are arranged away from each other;

[0011] The charging module is configured to be placed in the air duct, the discharge end of the first discharge part is configured to face the incoming wind side, and the discharge end of the second discharge part is configured to face the outgoing wind side.

[0012] In some exemplary embodiments, the charging module further includes a grounding ring, and the first discharging portion and the second discharging portion are both disposed in the grounding ring and extend along an axial direction of the grounding ring.

[0013] In some exemplary embodiments, the grounding ring is in a circular ring shape, the first discharge portion and the second discharge portion are disposed at the center of the grounding ring, and the first discharge portion and the second discharge portion are symmetrically disposed.

[0014] In some exemplary embodiments, the bracket is an insulating bracket and is fixed to the grounding ring.

[0015] In some exemplary embodiments, the bracket includes a first bracket and a second bracket, the first bracket and the second bracket are both fixed to the grounding ring, the first discharge portion is mounted to the first bracket, and the second discharge portion is mounted to the second bracket.

[0016] In some exemplary embodiments, the purification module further comprises:

[0017] The power supply module is configured to supply power to the first discharge part and the second discharge part, and the voltage of the first discharge part is configured to be not lower than the voltage of the second discharge part.

[0018] In some exemplary embodiments, a voltage of the first discharge part is 1 to 2 times a voltage of the second discharge part.

[0019] In some exemplary embodiments, the voltage range of the first discharge part and the second discharge part is -3 kV to 12.5 kV.

[0020] In some exemplary embodiments, the first discharge portion and the second discharge portion are tapered, the tip of the tapered portion forms the discharge end of the first discharge portion and the second discharge portion, and the other end of the tapered portion away from the tip is mounted to the bracket.

[0021] In some exemplary embodiments, the charging module is a plasma generator, a negative ion generator, a positive and negative ion generator, or a dielectric barrier plasma generator.

[0022] An air treatment device provided in an embodiment of the present application includes an air duct and the purification module described in any of the above embodiments, wherein the charging module of the purification module is arranged in the air duct, and the discharge end of the first discharge part of the charging module faces the incoming air side, and the discharge end of the second discharge part of the charging module faces the outgoing air side.

[0023] In some exemplary embodiments, the air treatment device further comprises:

[0024] The static pressure sensor is arranged in the air duct and is configured to detect the static pressure of the air duct.

[0025] In some exemplary embodiments, the air treatment device further comprises:

[0026] A control module, the purification module and the static pressure sensor are both electrically connected to the control module, and the control module is configured to control the operation of the purification module according to the detection result of the static pressure sensor.

[0027] In some exemplary embodiments, the air treatment device further comprises:

[0028] The dust collecting module is arranged in the air duct and is located downstream of the charging module.

[0029] A control method provided in an embodiment of the present application is used for the air treatment device described in any of the above embodiments, and the control method includes:

[0030] Based on the static pressure in the air duct being within a first preset range, the voltage of the first discharge part of the charging module is controlled to be not lower than the voltage of the second discharge part.

[0031] In some exemplary embodiments, based on the static pressure in the air duct being within the first preset range, the voltage of the first discharge part of the charging module is controlled to be 1 to 2 times the voltage of the second discharge part.

[0032] In some exemplary embodiments, the control method further includes:

[0033] Based on the static pressure in the air duct being lower than the first preset range, the voltage of the second discharge part of the charging module is controlled to increase.

[0034] In some exemplary embodiments, based on the static pressure in the air duct being within the first preset range, the voltage of the first discharge part of the charging module is controlled to be higher than the voltage of the second discharge part and not more than 2 times the voltage of the second discharge part;

[0035] Based on the static pressure in the air duct being lower than the first preset range, the voltage of the second discharge part of the charging module is controlled to increase until the static pressure in the air duct is within the first preset range, or until the voltage of the first discharge part of the charging module is equal to the voltage of the second discharge part.

[0036] In some exemplary embodiments, the control method further includes:

[0037] Based on the static pressure in the air duct being higher than the first preset range, the air treatment device is controlled to stop working.

[0038] In some exemplary embodiments, the first preset range is 8Pa to 15Pa; and / or

[0039] The voltage range of the first discharge part and the second discharge part is -3 kV to 12.5 kV.

[0040] The purification module of the embodiment of the present invention has a first discharge part of its charging module that can discharge to charge PM2.5, bacteria, dust, pollen and other particles in the air in the air duct, making it easier for the particles in the air to be adsorbed onto the dust collecting module in the air duct to achieve the effect of purifying the air; the ion wind generated by the discharge of the second discharge part can offset the ion wind generated by the discharge of the first discharge part, thereby reducing the impact of the discharge of the charging module on the overall static pressure and air intake of the air duct.

[0041] In addition, the discharge of the second discharge unit can also charge PM2.5, bacteria, dust, pollen and other particles in the air, thereby improving the air purification effect. The first discharge unit and the second discharge unit perform bidirectional charging, so the high-voltage static electricity supplied to the charging module can be reduced by 40%, that is, the same charging and air purification effect as the charging module with a single discharge unit can be achieved; and when the voltage of the first discharge unit of the charging module of the embodiment of the present application is the same as that of the charging module with a single discharge unit, the primary filtration efficiency of the charging module of the embodiment of the present application is improved by more than 20% compared with the charging module with a single discharge unit.

[0042] Since the voltage used by the charging module in the embodiment of the present application is relatively low, the charging effect of the high voltage of the charging module on other electrical components of the air purification device can be reduced; and the voltage used by the charging module in the embodiment of the present application is reduced, which can reduce the amount of ozone generated. The amount of ozone generated can be reduced by more than 30%, reducing the generation of intermediate by-products. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of a charging module of a purification module according to an embodiment of the present application;

[0044] Figure 2 for Figure 1The left side structural diagram of the charging module of the purification module shown;

[0045] Figure 3 for Figure 1 A schematic cross-sectional structural diagram of a charging module of the purification module shown;

[0046] Figure 4 A schematic diagram of the internal structure of a charging module of a purification module according to another embodiment of the present application;

[0047] Figure 5 for Figure 4 The left side structural diagram of the charging module of the purification module shown;

[0048] Figure 6 This is a schematic structural diagram of an air treatment device according to an embodiment of the present application;

[0049] Figure 7 for Figure 6 An exploded structural diagram of an air handling device is shown;

[0050] Figure 8 A circuit block diagram of an air treatment device according to an embodiment of the present application;

[0051] Fig. 9 This is a flow chart of a control method according to an embodiment of the present application.

[0052] Reference numerals:

[0053] 100-charging module, 1-first discharge part, 11-first discharge end, 2-second discharge part, 21-second discharge end, 3-grounding ring, 4-bracket, 41-first bracket, 42-second bracket;

[0054] 200-power supply module, 300-static pressure sensor, 400-control module;

[0055] 500- housing, 501- fresh air inlet, 502- return air inlet, 503- air outlet, 504- baffle, 505- air duct; 600- fan, 700- dust collection module. DETAILED DESCRIPTION

[0056] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0057] like Figures 1 to 5As shown, an embodiment of the present application provides a purification module, including a charging module 100, the charging module 100 includes a bracket 4, a first discharge section 1 and a second discharge section 2, the first discharge section 1 and the second discharge section 2 are both mounted to the bracket 4, and the discharge end of the first discharge section 1 (the first discharge end 11) and the discharge end of the second discharge section 2 (the second discharge end 21) are arranged opposite to each other, so that the first discharge end 11 of the first discharge section 1 and the second discharge end 21 of the second discharge section 2 are respectively facing in opposite directions.

[0058] The charging module 100 is arranged to be placed in the air duct, the first discharge end 11 of the first discharge part 1 is arranged to face the incoming wind side, and the second discharge end 21 of the second discharge part 2 is arranged to face the outgoing wind side ( Figure 1 The direction indicated by the arrow is the wind direction).

[0059] In the purification module, the charging module 100 includes two discharge parts: a first discharge part 1 and a second discharge part 2. The first discharge part 1 and the second discharge part 2 are both installed and fixed by a bracket 4, and the first discharge end 11 of the first discharge part 1 and the second discharge end 21 of the second discharge part 2 are arranged opposite to each other.

[0060] When the purification module is applied to an air treatment device, the charging module 100 can be placed in the air duct, and the first discharge end 11 of the first discharge section 1 can be oriented toward the incoming wind side, and the second discharge end 21 of the second discharge section 2 can be oriented toward the outgoing wind side. It should be understood that the first discharge end 11 of the first discharge section 1 is oriented toward the incoming wind side, which means that the first discharge end 11 of the first discharge section 1 is oriented toward the incoming wind side upstream, rather than the first discharge end 11 of the first discharge section 1 is directed toward the air inlet port of the air duct; the second discharge end 21 of the second discharge section 2 is oriented toward the outgoing wind side, which means that the second discharge end 21 of the second discharge section 2 is oriented toward the outgoing wind side (or the outgoing wind side) downstream, rather than the second discharge end 21 of the second discharge section 2 is directed toward the outgoing wind port of the air duct.

[0061] When the purification module is working, the first discharge part 1 can discharge and charge PM2.5, bacteria, dust, pollen and other particles in the air in the air duct, making the bacteria inactivated, making it easier for the particles in the air to be adsorbed onto the dust collection module (such as an electrostatic dust collection net) in the air duct to achieve the effect of purifying the air.

[0062] However, when the first discharge section 1 is working and discharging, ion wind will be generated, which will increase the resistance in the air duct and reduce the static pressure. Moreover, the ion wind and part of the air in the air duct will cancel each other out, resulting in a reduction in the air intake. In order to prevent air intake loss, a second discharge section 2 is added. The ion wind generated by the second discharge section 2 and the first discharge section 1 when working can cancel each other out, thereby not affecting the overall static pressure and air intake of the air duct. In addition, the second discharge section 2 can also discharge to charge PM2.5, bacteria, dust, pollen and other particulate matter in the air, thereby improving the air purification effect.

[0063] The charging module 100 of the embodiment of the present application performs bidirectional charging through the first discharge part 1 and the second discharge part 2. Therefore, compared with the charging module with a single discharge part, 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, the same charging and air purification effect as the charging module 100 with a single discharge part can be achieved (for example: under the condition that the voltage supplied to the first discharge part 1 is -6kV, the charging module 100 of the embodiment of the present application can achieve the effect of the charging module with a single discharge part at -10.5KV); and under the condition that the voltage of the first discharge part 1 of the charging module 100 of the embodiment of the present application is the same as that of the charging module with a single discharge part, the primary filtration efficiency of the charging module 100 of the embodiment of the present application is improved by more than 20% compared with that of the charging module with a single discharge part.

[0064] Since the voltage used by the charging module 100 in 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 air purification device can be reduced; and the voltage used by the charging module 100 in the embodiment of the present application is reduced, which can reduce the amount of ozone generated. The amount of ozone generated can be reduced by more than 30%, thereby reducing the generation of intermediate by-products.

[0065] In some exemplary embodiments, Figure 1-Figure 5 As shown, the charging module 100 further includes a grounding ring 3 , and the first discharge portion 1 and the second discharge portion 2 are both disposed in the grounding ring 3 and extend along the axial direction of the grounding ring 3 .

[0066] The charging module 100 also includes a grounding ring 3, which is annular and whose voltage can be regarded as zero. The first discharge part 1 and the second discharge part 2 are both arranged in the grounding ring 3 and extend along the axial direction of the grounding ring 3, so that after high voltage is applied to the first discharge part 1 and the second discharge part 2, the first discharge part 1 and the second discharge part 2 can discharge, so as to charge the particles in the air passing through the grounding ring 3, so as to facilitate the subsequent adsorption of the charged particles.

[0067] In some exemplary embodiments, Figure 1-Figure 5 As shown, the grounding ring 3 is in a circular shape, the first discharge portion 1 and the second discharge portion 2 are arranged at the center of the grounding ring 3, and the first discharge portion 1 and the second discharge portion 2 are symmetrically arranged.

[0068] The grounding ring 3 is in a circular shape, and the first discharge portion 1 and the second discharge portion 2 are arranged at the center of the grounding ring 3, and the first discharge portion 1 and the second discharge portion 2 both extend along the axial direction of the grounding ring 3 and are symmetrically arranged. Such an arrangement makes the first discharge portion 1 and the inner circumference of the grounding ring 3 at an equal distance, and the second discharge portion 2 and the inner circumference of the grounding ring 3 at an equal distance, which is conducive to achieving uniform discharge of the first discharge portion 1 and the second discharge portion 2 to all around, so as to charge the particles in the air passing through the grounding ring 3, and facilitate the subsequent adsorption of the charged particles.

[0069] In some exemplary embodiments, the bracket 4 is an insulating bracket and is fixed to the grounding ring 3 .

[0070] The bracket 4 may be an insulating bracket and may be fixed to the grounding ring 3 , so that the first discharge part 1 and the second discharge part 2 mounted to the insulating bracket are fixed in the grounding ring 3 .

[0071] Of course, the bracket 4 may not be fixed to the grounding ring 3 but may be fixed to other components.

[0072] In some exemplary embodiments, Figure 4 and Figure 5 As shown, the bracket 4 includes a first bracket 41 and a second bracket 42 , both of which are fixed to the grounding ring 3 , the first discharge part 1 is mounted to the first bracket 41 , and the second discharge part 2 is mounted to the second bracket 42 .

[0073] The bracket 4 can be a split structure, which may include a first bracket 41 and a second bracket 42. The first bracket 41 and the second bracket 42 are both insulating brackets, and both can be fixed to the grounding ring 3. The first discharge part 1 and the second discharge part 2 can be installed to the first bracket 41 and the second bracket 42 respectively, so as to support and fix the first discharge part 1 and the second discharge part 2 respectively through the first bracket 41 and the second bracket 42.

[0074] Of course, the bracket 4 can be a split structure including the first bracket 41 and the second bracket 42 , or an integrated structure, that is, the bracket 4 is an integral part, and the first discharge part 1 and the second discharge part 2 are both mounted on the integrated bracket 4 .

[0075] In some exemplary embodiments, the purification module further includes a power supply module 200 (eg Figure 8 As shown), the power supply module 200 is configured to supply power to the first discharge part 1 and the second discharge part 2 of the charging module 100, and the voltage of the first discharge part 1 is set to be not lower than the voltage of the second discharge part 2.

[0076] In the purification module, the power supply module 200 can supply power to the first discharge section 1 and the second discharge section 2. Since the main purpose of the first discharge section 1 is to charge the particles in the air to ensure the air purification effect, and the second discharge section 2 is set mainly to eliminate the influence of the ion wind generated by the first discharge section 1 on the wind pressure and wind volume, and the voltage of the second discharge section 2 is too high, arcing or ignition discharge will occur, resulting in an increase in the amount of ozone generated. Therefore, the voltage of the first discharge section 1 is set to be not lower than (higher than or equal to) the voltage of the second discharge section 2.

[0077] In some exemplary embodiments, the voltage of the first discharge section 1 may be 1 to 2 times the voltage of the second discharge section 2, such as: the voltage of the first discharge section 1 may 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 section 2.

[0078] The voltage of the first discharge section 1 is 1 to 2 times the voltage of the second discharge section 2, which ensures the charging and purification effect of particulate matter in the air, and the wind pressure and air volume can meet the requirements, and no arcing or ignition discharge will occur in the second discharge section 2.

[0079] Of course, according to actual needs, the relationship between the voltages of the first discharge part 1 and the second discharge part 2 can also be adjusted, such as: the voltage of the first discharge part 1 is greater than twice the voltage of the second discharge part 2.

[0080] In some exemplary embodiments, the voltage range of the first discharge part 1 and the second discharge part 2 is -3 kV to 12.5 kV.

[0081] The voltage range of the first discharge part 1 and the second discharge part 2 is -3kV to 12.5kV. For example, the voltage of the first discharge part 1 can be -6kV, and the voltage of the second discharge part 2 can be -3kV. At this time, the voltage of the first discharge part 1 is twice the voltage of the second discharge part 2.

[0082] Of course, the voltage range of the first discharge part 1 and the second discharge part 2 is not limited to the above-mentioned -3kV to 12.5kV, and can also be adjusted according to actual needs.

[0083] In some exemplary embodiments, Figure 1 , Figure 3-Figure 4 As shown, the first discharge portion 1 and the second discharge portion 2 are conical, the tip of the cone forms the first discharge end 11 of the first discharge portion 1 and the second discharge end 21 of the second discharge portion 2, and the other end of the cone away from the tip is mounted on the bracket 2.

[0084] The first discharge portion 1 and the second discharge portion 2 may be tapered (e.g., conical), and the tip of the tapered portion may form a first discharge end 11 of the first discharge portion 1 and a second discharge end 21 of the second discharge portion 2, and may face the wind inlet side and the wind outlet side of the air duct respectively; the thicker other end of the tapered portion that is away from the tip may be mounted on the bracket 4. The charging module 100 with dual discharge portions may be a dual-end needle tip plasma charging module.

[0085] Of course, the first discharge portion 1 and the second discharge portion 2 may be in other shapes besides being conical, for example, the first discharge portion 1 and the second discharge portion 2 may be wire-shaped electrode wires.

[0086] In some exemplary embodiments, the charging module 100 is a plasma generator, a negative ion generator, a positive and negative ion generator, or a dielectric barrier plasma generator.

[0087] The specific structure of the charging module 100 with dual discharge parts can be various, such as: plasma generator, negative ion generator, positive and negative ion generator, dielectric barrier plasma generator, etc.; the charging form of the charging module 100 can include needle plate plasma, syringe plasma, carbon brush + cylinder plasma, etc.

[0088] In some exemplary embodiments, Figure 1-Figure 5 As shown, the charging module 100 is mainly composed of a first discharge part 1 and its first bracket 41, a second discharge part 2 and its second bracket 42, a grounding ring 3, etc. The first discharge end 11 of the first discharge part 1 points to the incoming wind side, and the second discharge end 21 of the second discharge part 2 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 integrated structure, or the first bracket 41 and the second bracket 42 can also be two independently arranged components.

[0089] The first discharge section 1 and the second discharge section 2 can be powered independently (e.g., the power supply module 200 may include two power supplies, which respectively power the first discharge section 1 and the second discharge section 2) or share a power supply (e.g., the power supply module 200 may include only one power supply, which can be used to power both the first discharge section 1 and the second discharge section 2). Preferably, the first discharge section 1 and the second discharge section 2 are powered independently.

[0090] The first discharge part 1 and the second discharge part 2 can be tungsten needles, stainless steel needles and needles made of other metal materials, preferably tungsten needles. The grounding ring 3 can be made of stainless steel or other metal materials.

[0091] An air treatment device provided in an embodiment of the present application is Figure 6 and Figure 7As shown, it includes an air duct 505 and a purification module of any of the above embodiments, wherein the charging module 100 of the purification module is arranged in the air duct 505, and the first discharge end 11 of the first discharge part 1 of the charging module 100 faces the incoming wind side, and the second discharge end 21 of the second discharge part 2 of the charging module 100 faces the outgoing wind side.

[0092] The air treatment device includes the purification module of any of the above embodiments and has all the beneficial effects of the purification module of any of the above embodiments, which will not be described in detail here.

[0093] In some exemplary embodiments, Figure 7 As shown, the air treatment device further includes a dust collection module 700, which is disposed in the air duct 505 and downstream of the charging module 100. The dust collection module 700 may be an electrostatic dust collection module (eg, an electrostatic dust collection net) or other types of dust collection modules.

[0094] When air flows through the air duct 505, under the action of the charging module 100 of the purification module, PM2.5, bacteria, dust, pollen and other particles in the air are charged, and the particles can be adsorbed onto the downstream dust collection module 700 to achieve the effect of purifying the air.

[0095] In some exemplary embodiments, the air handling device further includes a static pressure sensor 300 . The static pressure sensor 300 is disposed in the air duct 505 and is configured to detect the static pressure of the air duct 505 .

[0096] like Figure 8 As shown, the air treatment device further includes a control module 400, and the purification module and the static pressure sensor 300 are both electrically connected to the control module 400, and the control module 400 is configured to control the operation of the purification module according to the detection result of the static pressure sensor 300. Among them, the electrostatic dust collection module (dust collection module 700) can also be electrically connected to the control module 400, and the control module 400 can control the power supply to the electrostatic dust collection module to control the operation of the electrostatic dust collection module.

[0097] After the air treatment device is turned on, the static pressure sensor 300 can detect the static pressure in the air duct 505 and transmit it to the control module 400. When the static pressure detected by the static pressure sensor 300 is 8Pa to 15Pa, the purification module can work normally; when the static pressure detected by the static pressure sensor 300 is lower than 8Pa, the control module 400 transmits instructions to the power supply module 200 of the purification module to control the voltage of the first discharge part 1 and the second discharge part 2 supplied to the charging module 100, preferably, the voltage of the second discharge part 2 is increased until the static pressure detected by the static pressure sensor 300 is greater than 8Pa or the voltage of the first discharge part 1: the voltage of the second discharge part 2 = 1:1; when the static pressure detected by the static pressure sensor 300 is greater than 15Pa, the static pressure in the air duct 505 is too large, indicating that the dust collection module 700 or other filters (such as: wind and sand nets) collect too much dust and are blocked. At this time, the air treatment device can be controlled to stop working and remind the user to perform maintenance on the dust collection module 700 or other filters.

[0098] In some exemplary embodiments, the air handling device may be an air conditioner. Figure 6 and Figure 7 As shown, the housing 500 of the indoor unit of the air conditioner may include a fresh air inlet 501, a return air inlet 502, and an air outlet 503; an air duct 505 may be provided in the housing 500, and the fresh air inlet 501 and the return air inlet 502 may be communicated with the air inlet port of the air duct 505, and the air outlet 503 may be communicated with the air outlet port of the air duct 505. The static pressure sensor 300, the charging module 100, the dust collection module 700, etc. are all arranged in the air duct 505.

[0099] A movable baffle (e.g., a rotatable baffle) 504 is provided in the housing 500. The movement of the baffle 504 can realize the communication between the fresh air inlet 501 and the air inlet port of the air duct 505, or the communication between the return air inlet 502 and the air inlet port of the air duct 505. The fresh air inlet 501 can be connected to the outside through a fresh air duct. The outdoor fresh air can enter the air duct 505 from the fresh air inlet 501 through the fresh air duct, and after being purified by the charging module 100 and the dust collection module 700, it is discharged into the room from the air outlet 503; the indoor air can enter the air duct 505 from the return air inlet 502, and after being purified by the charging module 100 and the dust collection module 700, it is discharged into the room from the air outlet 503.

[0100] Among them, the charging module 100, the static pressure sensor 300, and the dust collection module 700 can be arranged in sequence along the flow direction of the wind in the air duct 505. However, the position of the static pressure sensor 300 can be adjusted, such as: the static pressure sensor 300 can be arranged upstream of the charging module 100. A wind and sand prevention net can also be provided in the air duct 505, and the wind and sand prevention net can be located between the charging module 100 and the dust collection module 700, such as: the charging module 100, the static pressure sensor 300, the wind and sand prevention net, and the dust collection module 700 can be arranged in sequence along the flow direction of the wind in the air duct 505.

[0101] A fan 600 , a control module 400 , a power supply module 200 , etc. may also be provided in the casing. The fan 600 is located in the air duct 505 ; the control module 400 and the power supply module 200 may be located in the air duct 505 , or at other locations outside the air duct 505 .

[0102] Of course, the air treatment device may also be other products that can process air, such as: an air purifier, an air humidifier, etc.

[0103] The air purification device of the embodiment of the present application realizes consumable-free and efficient dust filtration of air (especially fresh air) through the organic combination of a charging module 100 with a dual discharge unit, an electrostatic dust collection module, a static pressure sensor 300, a control module 400, etc.

[0104] A control method provided in an embodiment of the present application is used for an air treatment device in any of the above embodiments. The control method includes: based on the static pressure in the air duct 505 being within a first preset range, controlling the voltage of the first discharge part 1 of the charging module 100 to be not lower than the voltage of the second discharge part 2. The first preset range is 8Pa to 15Pa. Of course, the value range of the first preset range can also be adjusted according to actual needs.

[0105] like Fig. 9 As shown, after the air treatment device is started (such as: the fresh air function of the air conditioner is turned on), the static pressure sensor 300 detects the static pressure in the air duct 505 and transmits it to the control module 400. When the detected static pressure is within the first preset range (such as: 8Pa to 15Pa), it means that the charging effect of the charging module 100, the speed of the fan, and the working state of the dust collection module 700 are adapted. At this time, the control module 400 can control the purification module to work normally. Specifically, the control module 400 can output a high-voltage control signal to the power supply module 200, and the power supply module 200 transmits high voltage electricity to the first discharge part 1 and the second discharge part 2 of the charging module 100, and the voltage of the first discharge part 1 is not lower than the voltage of the second discharge part 2. Among them, the power supply module 200 transmits high voltage electricity in the range of -3kV to 12.5kV to the first discharge part 1 and the second discharge part 2. Of course, the range of high voltage electricity transmitted to the first discharge part 1 and the second discharge part 2 is not limited to -3kV to 12.5kV, and can also be adjusted as needed.

[0106] In some exemplary embodiments, based on the static pressure in the air duct 505 being within the first preset range, the voltage of the first discharging part 1 of the charging module 100 is controlled to be 1 to 2 times the voltage of the second discharging part 2 .

[0107] When it is detected that the static pressure of the air duct 505 is within a first preset range (e.g., 8Pa to 15Pa), the control module 400 can control the power supply module 200 to supply high voltage electricity to the first discharge part 1 and the second discharge part 2 of the charging module 100, and the high voltage electricity supplied to the first discharge part 1 is 1 to 2 times the high voltage electricity supplied to the second discharge part 2, such as: the high voltage electricity supplied to the first discharge part 1 is -6kV, and the high voltage electricity supplied to the second discharge part 2 is -3kV.

[0108] Of course, the relationship between the high voltage electricity delivered to the first discharge part 1 and the second discharge part 2 can be adjusted as needed.

[0109] In some exemplary embodiments, the control method further includes: controlling the voltage of the second discharging part 2 of the charging module 100 to increase based on the static pressure in the air duct 505 being lower than the first preset range.

[0110] like Fig. 9 As shown, after the air treatment device is started (such as: the fresh air function of the air conditioner is turned on), the static pressure sensor 300 detects that the static pressure in the air duct 505 is lower than the first preset range (such as lower than 8Pa), indicating that the ion wind generated by the discharge of the first discharge part 1 may cause the resistance in the air duct 505 to increase and the static pressure to decrease. At this time, the control module 400 can transmit instructions to the power supply module 200 to control the voltage delivered to the second discharge part 2 to increase, so as to utilize the ion wind generated by the discharge of the second discharge part 2 and the ion wind generated by the discharge of the first discharge part 1 to offset each other, thereby increasing the static pressure of the air duct 505.

[0111] In addition, the low static pressure in the air duct 505 may also be caused by the low wind speed in the air duct 505. Therefore, in addition to increasing the voltage of the second discharge part 2, the static pressure in the air duct 505 can also be increased by other means, such as: increasing the speed of the fan to increase the wind speed in the air duct 505.

[0112] In some exemplary embodiments, based on the static pressure in the air duct 505 being within the first preset range, the voltage of the first discharge section 1 of the charging module 100 is controlled to be higher than the voltage of the second discharge section 2 and not more than twice the voltage of the second discharge section 2; based on the static pressure in the air duct 505 being lower than the first preset range, the voltage of the second discharge section 2 of the charging module 100 is controlled to increase until the static pressure in the air duct 505 is within the first preset range, or until the voltage of the first discharge section 1 of the charging module 100 is equal to the voltage of the second discharge section 2.

[0113] like Fig. 9As shown, when the static pressure in the air duct 505 is within the first preset range (e.g., 8Pa to 15Pa), the control module 400 can control the purification module to work normally, so that the voltage of the first discharge part 1 is higher than the voltage of the second discharge part 2, and does not exceed twice the voltage of the second discharge part 2; when the static pressure in the air duct 505 is lower than the first preset range (e.g., lower than 8Pa), the voltage of the second discharge part 2 can be controlled to increase until the static pressure in the air duct 505 returns to the first preset range (e.g., the static pressure is greater than 8Pa), or until the voltage of the first discharge part 1 is equal to the voltage of the second discharge part 2 (i.e., the voltage of the first discharge part 1: the voltage of the second discharge part 2 = 1:1), at which time the voltage of the second discharge part 2 can be stopped from being further increased.

[0114] In some exemplary embodiments, the control method further includes: controlling the air handling device to stop working based on the static pressure in the air duct 505 being higher than a first preset range.

[0115] like Fig. 9 As shown, when the static pressure in the air duct 505 is higher than the first preset range (e.g., higher than 15 Pa), it indicates that the dust collection module 700 or filters such as wind and sand protection nets are blocked. At this time, the air treatment device can be controlled to stop working and remind the user to perform maintenance operations such as cleaning and replacing the dust collection module 700 or other filters.

[0116] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0117] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0118] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0119] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean 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, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic 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, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0121] It will be appreciated by those skilled in the art that all or some of the steps, systems, and functional modules / units in the methods disclosed above may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some or all components may be implemented as software executed by a processor, such as a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled 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 technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic 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, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0122] In addition, when describing representative embodiments, the specification may have presented the method and / or process as a specific sequence of steps. However, to the extent that the method or process does not rely on the specific order of the steps described herein, the method or process should not be limited to the steps of the specific order described. As will be understood by those of ordinary skill in the art, other sequences of steps are also possible. Therefore, the specific sequence of the steps set forth in the specification should not be interpreted as a limitation to the claims. In addition, the claims for the method and / or process should not be limited to the steps of performing them in the order written, and those skilled in the art can easily understand that these sequences can be changed and still remain within the spirit and scope of the embodiments of the present application.

[0123] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A purification module, It is characterized in that include: A charging module, comprising a bracket, a first discharge part and a second discharge part, wherein the first discharge part and the second discharge part are both mounted to the bracket, and discharge ends of the first discharge part and the second discharge part are arranged away from each other; The charging module is configured to be placed in the air duct, the discharge end of the first discharge part is configured to face the incoming wind side, and the discharge end of the second discharge part is configured to face the outgoing wind side.

2. The purification module according to claim 1, It is characterized in that The charging module further includes a grounding ring, and the first discharging portion and the second discharging portion are both disposed in the grounding ring and extend along the axial direction of the grounding ring.

3. The purification module according to claim 2, It is characterized in that The grounding ring is in a circular shape, the first discharge portion and the second discharge portion are arranged at the center of the grounding ring, and the first discharge portion and the second discharge portion are symmetrically arranged.

4. The purification module according to claim 2, It is characterized in that The bracket is an insulating bracket and is fixed to the grounding ring.

5. The purification module according to claim 4, It is characterized in that The bracket includes a first bracket and a second bracket, the first bracket and the second bracket are both fixed to the grounding ring, the first discharge part is installed to the first bracket, and the second discharge part is installed to the second bracket.

6. The purification module according to any one of claims 1 to 5, It is characterized in that Also includes: The power supply module is configured to supply power to the first discharge part and the second discharge part, and the voltage of the first discharge part is configured to be not lower than the voltage of the second discharge part.

7. The purification module according to claim 6, It is characterized in that A voltage of the first discharge part is 1 to 2 times a voltage of the second discharge part.

8. The purification module according to claim 6, It is characterized in that The voltage range of the first discharge part and the second discharge part is -3 kV to 12.5 kV.

9. The purification module according to any one of claims 1 to 5, It is characterized in that The first discharge portion and the second discharge portion are in a cone shape, the tip of the cone forms the discharge end of the first discharge portion and the second discharge portion, and the other end of the cone away from the tip is mounted on the bracket.

10. The purification module according to any one of claims 1 to 5, It is characterized in that The charging module is a plasma generator, a negative ion generator, a positive and negative ion generator or a dielectric barrier plasma generator.

11. An air treatment device, It is characterized in that It comprises an air duct and a purification module according to any one of claims 1 to 10, wherein the charging module of the purification module is arranged in the air duct, and the discharge end of the first discharge part of the charging module faces the incoming wind side, and the discharge end of the second discharge part of the charging module faces the outgoing wind side.

12. The air treatment device according to claim 11, It is characterized in that Also includes: The static pressure sensor is arranged in the air duct and is configured to detect the static pressure of the air duct.

13. The air treatment device according to claim 12, It is characterized in that Also includes: A control module, the purification module and the static pressure sensor are both electrically connected to the control module, and the control module is configured to control the operation of the purification module according to the detection result of the static pressure sensor.

14. The air treatment device according to any one of claims 11 to 13, It is characterized in that Also includes: The dust collecting module is arranged in the air duct and is located downstream of the charging module.

15. A control method, It is characterized in that For the air treatment device according to any one of claims 11 to 14, the control method comprises: Based on the static pressure in the air duct being within a first preset range, the voltage of the first discharge part of the charging module is controlled to be not lower than the voltage of the second discharge part.

16. The control method according to claim 15, It is characterized in that Based on the static pressure in the air duct being within the first preset range, the voltage of the first discharge part of the charging module is controlled to be 1 to 2 times the voltage of the second discharge part.

17. The control method according to claim 15, It is characterized in that Also includes: Based on the static pressure in the air duct being lower than the first preset range, the voltage of the second discharge part of the charging module is controlled to increase.

18. The control method according to claim 17, It is characterized in that Based on the static pressure in the air duct being within the first preset range, controlling the voltage of the first discharge part of the charging module to be higher than the voltage of the second discharge part and not more than twice the voltage of the second discharge part; Based on the static pressure in the air duct being lower than the first preset range, the voltage of the second discharge part of the charging module is controlled to increase until the static pressure in the air duct is within the first preset range, or until the voltage of the first discharge part of the charging module is equal to the voltage of the second discharge part.

19. The control method according to claim 15, It is characterized in that Also includes: Based on the static pressure in the air duct being higher than the first preset range, the air treatment device is controlled to stop working.

20. The control method according to any one of claims 15 to 19, It is characterized in that The first preset range is 8Pa to 15Pa; and / or The voltage range of the first discharge part and the second discharge part is -3 kV to 12.5 kV.

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