Air treatment device

Abstract

The application provides an air treatment device, which comprises a shell, a first air wheel, a purification net and a heating body. The shell is internally provided with a containing cavity. The shell is externally provided with an air inlet and an air outlet, which are in communication with the containing cavity. The first air wheel is arranged in the containing cavity. The purification net is arranged adjacent to the air inlet. The heating body is attached to the purification net. The air treatment device has a desorption mode. When the air treatment device is in the desorption mode, the heating body is turned on, the pollutants on the purification net are heated and desorbed, the airflow flows into the air inlet, and the airflow carrying the pollutants flows out of the air outlet. Thus, the application solves the problem that the air treatment device in the prior art needs to frequently replace the purification net.

Description

Technical Field

[0001] This invention relates to the field of household appliance technology, and in particular to an air handling device. Background Technology

[0002] Current air handling units primarily rely on adsorption to purify indoor pollutants such as formaldehyde and benzene. A filter coated with a purifying agent serves as the purification screen, adsorbing formaldehyde and benzene. However, the adsorbent easily becomes saturated, and a saturated adsorbent cannot remove further indoor pollutants. Therefore, the purification screen needs frequent replacement, which is inconvenient for users. In other words, existing air handling units suffer from the problem of requiring frequent filter replacements. Summary of the Invention

[0003] The main objective of this invention is to provide an air handling device that addresses the problem of frequent filter replacements required in existing air handling devices.

[0004] To address the aforementioned problems, this invention proposes an air handling device, comprising a housing, a first impeller, a purification screen, and a heating element. The housing contains a receiving cavity, and the housing has an air inlet and an air outlet communicating with the receiving cavity. The first impeller is disposed within the receiving cavity. The purification screen is disposed adjacent to the air inlet. The heating element is attached to the purification screen. The air handling device has a desorption mode. When the air handling device is in desorption mode, the heating element is activated, pollutants on the purification screen are desorbed by heat, airflow flows in through the air inlet, and carries the pollutants out through the air outlet.

[0005] In an optional embodiment, the housing is further provided with an air outlet communicating with the accommodating cavity, and the housing is further provided with an air outlet baffle and an exhaust baffle. When the air handling device is in desorption mode, the air outlet baffle closes the air outlet.

[0006] The air handling device also has an adsorption mode. When the air handling device is in adsorption mode, the exhaust port baffle closes the exhaust port, the heating element is turned off, the airflow flows in from the air inlet, passes through the purification screen, and flows out from the air outlet.

[0007] In one optional embodiment, the heating element includes a first heating element and a second heating element, which are respectively attached to opposite sides of the purification net.

[0008] In an optional embodiment, a fixing frame is further provided inside the housing. The fixing frame is detachably disposed inside the housing. The purification mesh and the heating element are both disposed inside the fixing frame, and the heating element is disposed between the fixing frame and the purification mesh.

[0009] In an optional embodiment, the fixing frame is made of bulk molding compound, polyphenylene sulfide, polyarylsulfone, or polyetheretherketone.

[0010] In one optional embodiment, the purification net includes a carrier and an adsorbent, the adsorbent being coated on the carrier, and the carrier being made of honeycomb ceramic, aluminum honeycomb, or silicon carbide.

[0011] In one alternative embodiment, the heating element is made of MCH ceramic heating element, PTC, heating wire or graphene heating film.

[0012] In one optional embodiment, the heating element includes a plurality of third heating elements, and the purification mesh has a plurality of spaced-apart receiving slots, through which the third heating elements are embedded in the purification mesh.

[0013] In one optional embodiment, the number of the third heating elements is not less than 2 and not more than 30.

[0014] In an optional embodiment, the heating element includes a fourth heating element, and a driving device is further provided inside the housing. The driving device is used to drive the fourth heating element to move in contact with the purification net.

[0015] In an optional embodiment, a volute is further provided inside the accommodating cavity, the first impeller is disposed inside the volute, the volute has a volute tongue, and the exhaust port baffle is disposed at the volute tongue.

[0016] In one alternative embodiment, the air handling device is an air conditioner.

[0017] In one alternative embodiment, the air conditioner includes a housing, the housing being formed therein, and an air conditioner body is further disposed within the housing, with a second impeller disposed within the air conditioner body.

[0018] This invention provides an air handling device, specifically, an air handling device with a desorption mode. In this mode, a heating element is attached to a purification screen and heats the screen to desorb accumulated pollutants. Airflow from the inlet passes through the purification screen, carrying the pollutants out through the exhaust outlet. Thus, the purification screen can be reused and does not require frequent replacement. This invention solves the problem of frequent filter replacement required in existing air handling devices. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an embodiment of the air handling device of the present invention;

[0021] Figure 2 for Figure 1 Flow diagram of the air handling unit in desorption mode;

[0022] Figure 3 for Figure 1 Flow diagram of the air handling unit in adsorption mode;

[0023] Figure 4 This is a schematic diagram of the structure of a purification net according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of another embodiment of the purification net of the present invention;

[0025] Figure 6 for Figure 1 A cross-sectional view of another embodiment of the air handling unit;

[0026] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0027] Explanation of icon numbers:

[0028] label name label name 100 Air handling unit 11 case 11a air inlet 11b air vent 11c exhaust vent 112 Air vent baffle 113 Exhaust vent baffle 114 Snail shell 12 First Windmill 13 Purification net 141 First heating element 142 Second heating element 143 Third heating element 144 Fourth heating element 15 Fixed frame 20 Air conditioner body

[0029] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0033] Current air handling units, which need to treat pollutants such as formaldehyde and benzene compounds, primarily employ adsorption for purification. Airflow enters the unit's casing through the inlet, passes through a purification screen, and the screen adsorbs pollutants like formaldehyde and benzene compounds. This significantly reduces the pollutant content in the airflow exiting the outlet, achieving air purification. However, the purification screen consists of a carrier and an adsorbent, with the adsorbent, coated on the carrier, primarily adsorbing pollutants. Existing adsorbents are easily saturated. Once saturated, the purification screen loses its purification function. This necessitates frequent disassembly and replacement, causing inconvenience for users. Furthermore, pollutants remaining on the screen, once saturated, can be easily carried into the room by the airflow, potentially causing secondary pollution.

[0034] Please see Figures 1 to 3This invention proposes an air handling device 100, which includes a housing 11, a first impeller 12, a purification screen 13, and a heating element. The housing 11 has a receiving cavity, and an air inlet 11a and an air outlet 11c communicating with the receiving cavity are provided on the housing 11. The first impeller 12 is disposed within the receiving cavity; the purification screen 13 is disposed adjacent to the air inlet 11a; and the heating element is attached to the purification screen 13. The air handling device 100 has a desorption mode. When the air handling device 100 is in desorption mode, the heating element is turned on, pollutants on the purification screen 13 are desorbed by heat, airflow flows in through the air inlet 11a, and carries the pollutants out through the air outlet 11c.

[0035] We found that during the adsorption process of the purification net 13, the adsorbent primarily adsorbs pollutants such as aldehydes and benzene. These pollutants also tend to accumulate within the adsorbent. Heating the adsorbent can catalyze the removal of pollutants. Through practice, we found that when the temperature of the purification net 13 is between 70°C and 100°C, the pollutants can be desorbed.

[0036] Therefore, we propose an air handling device 100 with a desorption mode. The air handling device 100 includes a heating element that contacts the purification screen 13. The heating element can be controlled to turn on and off. When the air handling device 100 is in desorption mode, the heating element is turned on to heat the purification screen 13, causing pollutants to no longer be tightly adsorbed into the purification screen 13. In one embodiment, the air handling device 100 is also designed with an exhaust port 11c connecting to the outside. This allows the airflow entering from the inlet 11a in desorption mode to pass through the heated purification screen 13 and carry the pollutants from the screen out through the exhaust port 11c.

[0037] Thus, when pollutants accumulate to a certain level on the purification net 13, the desorption mode of the air handling unit 100 can be activated to desorb the pollutants and discharge them outdoors. This restores the adsorption capacity of the purification net 13 without requiring its replacement. This solves the problem of users frequently needing to disassemble and replace the purification net 13. Furthermore, the desorption mode discharges pollutants located within the air handling unit 100 outdoors through the exhaust vent 11c, preventing the accumulation of pollutants within the air handling unit 100 and avoiding secondary pollution.

[0038] In another optional embodiment, the housing 11 is further provided with an air outlet 11b communicating with the accommodating cavity. The housing 11 is also provided with an air outlet baffle 112 and an exhaust air outlet baffle 113. When the air handling device 100 is in desorption mode, the air outlet baffle 112 closes the air outlet, that is, the air outlet baffle 112 blocks the air outlet 11b and the accommodating cavity. The air handling device 100 also has an adsorption mode. When the air handling device 100 is in adsorption mode, the exhaust air outlet baffle 113 closes the exhaust air outlet 11c, the exhaust air outlet baffle 113 blocks the accommodating cavity and the exhaust air outlet 11c, the heating element is turned off, the airflow flows in from the air inlet 11a, passes through the purification screen 13, and flows out from the air outlet 11b.

[0039] Specifically, in addition to the desorption mode, the air handling device 100 also has an adsorption mode. The adsorption mode is used to adsorb and purify indoor pollutants such as formaldehyde and benzene. In this mode, the purification screen 13 is not heated. The housing 11 also has an air outlet 11b facing indoors, and the air inlet 11a also faces indoors. The first impeller 12 moves, drawing in air with a high concentration of indoor pollutants through the air inlet 11a. This airflow then passes through the purification screen 13, during which the pollutants carried in the airflow are adsorbed by the purification screen 13. After being purified by the purification screen 13, the airflow flows back into the room from the air outlet 11b. This completes the adsorption mode, i.e., the process of purifying the indoor air.

[0040] Furthermore, during the adsorption process, indoor pollutants accumulate on the purification net 13. A sensor can also be installed on the purification net 13. When the sensor detects that the pollutants on the purification net 13 have accumulated to a threshold, the air handling device 100 switches from adsorption mode to desorption mode, desorbing the pollutants on the purification net 13 and discharging them outdoors. In addition to the automatic switching scheme, the air handling device proposed in this invention can also be manually switched to adjust the adsorption and desorption modes. The air handling device 100 is also equipped with an indicator light connected to the sensor. The user can use this indicator light to determine whether the pollutants on the purification net 13 have accumulated to the threshold and whether to turn the desorption mode on or off.

[0041] Meanwhile, to prevent interference between the adsorption and desorption flow paths of the air handling unit 100, when the air handling unit 100 is in adsorption mode, the exhaust port baffle 113 blocks the first impeller 12 and the exhaust port 11c, while the air inlet 11a and the air outlet 11b are open to the first impeller 12. When the air handling unit 100 is in desorption mode, the exhaust port baffle 112 blocks the air outlet 11b, while the first impeller 12 is open to the air inlet 11a and the exhaust port 11c.

[0042] It is worth noting that the heating element is an electric heating element. Furthermore, this electric heating element is connected to an electric generating device (such as a power source), and when the air handling unit 100 is in desorption mode, electricity is supplied to the electric heating element. The electric heating element generates heat after being energized, and this heat is transferred to the purification screen 13, achieving heated desorption of the purification screen 13.

[0043] Please see Figure 4 In one optional embodiment, the heating element includes a first heating element 141 and a second heating element 142, which are respectively attached to opposite sides of the purification mesh 13. Thus, the first heating element 141 and the second heating element 142 conduct heat to the purification mesh 13 from opposite sides, thereby making the purification mesh 13 more evenly and fully heated.

[0044] In an optional embodiment, a fixing frame 15 is further provided inside the housing 11. The fixing frame 15 is detachably disposed inside the housing 11, and the purification screen 13 and the heating element are both disposed within the fixing frame 15, with the heating element disposed between the fixing frame 15 and the purification screen 13. Optionally, the fixing frame 15 is detachably installed in the air inlet direction, and the fixing frame 15 is installed inside the housing 11 near the air inlet 11a by means of clips or screws. It is worth noting that the fixing frame 15 can be used to install the heating element in addition to the purification screen 13. In one embodiment, the first heating element 141 and the second heating element 142 are respectively disposed between the opposite sides of the fixing frame 15 and the opposite sides of the purification screen 13. This achieves sufficient heating of the purification screen 13. At the same time, the fixing frame 15 is provided to fix the heating element so that the heated element is always in contact with the purification screen 13 during the heating process.

[0045] Please see Figure 5 In one optional embodiment, the heating element includes a plurality of third heating elements 143, and the purification net 13 has a plurality of spaced-apart receiving slots. The third heating elements 143 are embedded in the purification net 13 through the receiving slots. Compared with the scheme where the heating element contacts the purification net 13, the scheme where the heating element is embedded in the purification net 13 increases the contact area between the heating element and the purification net 13, allowing the purification net 13 to be heated more quickly. It is worth noting that, to avoid the multiple third heating elements 143 embedded in the purification net 13 affecting the adsorption effect of the purification net 13 itself, the multiple third heating elements 143 are spaced apart, and the receiving slots are also correspondingly spaced apart.

[0046] In one optional embodiment, the number of the third heating elements 143 is not less than 2 and not more than 30. Optionally, the number of the third heating elements 143 can be 4, 5, 6, 7, or 8. In one optional embodiment, the plurality of the third heating elements 143 are arranged in a uniform array on the purification net 13 to fully heat each area of ​​the purification net 13. The plurality of receiving slots are correspondingly arranged in an array on the purification net 13. When the number of the third heating elements 143 is large, the plurality of the third heating elements 143 can be distributed throughout the various positions on the purification net 13. Taking into account both heating effect and manufacturing cost, the air handling device 100 includes 7 of the third heating elements 143, which are embedded in the purification net 13 at intervals.

[0047] Please see Figure 6 , Figure 7 In one optional embodiment, the heating element includes a fourth heating element 144, and a driving device is also provided inside the housing 11. The driving device is used to drive the fourth heating element 144 to move in contact with the purification net 13. It can be seen that a guide rail is also provided inside the housing 11, which is used to define the movement trajectory of the fourth heating element 144. In another embodiment, the driving device can drive the heated element to move along the guide rail. In another embodiment, the purification net 13 is divided into multiple regions, and the fourth heating element 144 reciprocates within each region. After one region is heated, the fourth heating element 144 moves to the next driving region and continues to reciprocate in contact with the purification net 13. This achieves segmented and time-division heating and catalysis of the purification net 13. Thus, the position of the fourth driving element relative to the purification net 13 is variable, enabling segmented and regional heating of the purification net 13. In one embodiment, when a large amount of pollutants accumulate in a certain area of ​​the purification net 13, the time for the fourth heating element 144 to reciprocate in that area can be controlled so that the pollutants on the purification net 13 are fully desorbed.

[0048] In an optional embodiment, the fixing frame 15 is made of bulk molding compound (BMC), polyphenylene sulfide (PPS), polyarylsulfone (PAR), or polyetheretherketone (PEEK). Since the purification net 13 is disposed within the fixing frame 15 and the purification net 13 needs to be frequently heated, the material of the fixing frame 15 needs to have a certain degree of heat resistance. Besides the materials mentioned above, other materials with good heat resistance can also be used to manufacture the fixing frame 15.

[0049] In an optional embodiment, the purification mesh 13 includes a carrier and an adsorbent, with the adsorbent coated on the carrier. To better support the adsorbent, the carrier is often arranged in a mesh structure. Alternatively, the carrier can also be other shapes that facilitate the coating of the adsorbent and the filtration of the airflow. Optionally, the adsorbent is a zeolite adsorbent, also known as a molecular sieve. Based on the previous embodiment, the adsorbent is a composite zeolite adsorbent system, containing one or more different zeolites. The silica-to-alumina ratio of these zeolites varies from 20 to 900. By changing parameters such as the type of zeolite, the coating amount, and the silica-to-alumina ratio, the adsorption performance of the module for formaldehyde, toluene, and various other pollutants can be adjusted. Therefore, the purification mesh 13 can be adjusted in performance according to actual usage requirements to achieve different purification effects.

[0050] Based on the previous optional embodiment, the carrier material is honeycomb ceramic, aluminum honeycomb, or silicon carbide. These materials have good load-bearing capacity and can support a large amount of zeolite adsorbent. Furthermore, these materials have strong heat resistance, and carriers made from them can withstand repeated heating and desorption processes. This greatly extends the service life of the purification mesh 13. Besides the above-mentioned materials, other heat-resistant materials with a certain load-bearing capacity can also be used to manufacture the carrier.

[0051] In one optional embodiment, the heating element is made of MCH ceramic heating element, PTC, heating wire, or graphene heating film. Considering both manufacturing cost and heating effect, these materials are common electric heating element materials used to connect to a power source and generate heat when energized. In one embodiment, the heating element is made of MCH ceramic heating element. MCH ceramic heating elements have advantages such as long service life, environmental friendliness, and easy temperature control.

[0052] Please see Figure 2 In an optional embodiment, a volute 114 is further provided within the accommodating cavity, the first impeller 12 is disposed within the volute 114, the volute 114 has a volute tongue, and the exhaust port baffle 113 is disposed at the volute tongue. Specifically, the volute tongue has a mounting structure for installing the exhaust port baffle 113, and the exhaust port baffle 113 is rotatably mounted at the volute tongue. When the exhaust port baffle 113 blocks the exhaust port 11c and the first impeller 12, the exhaust port baffle 113 is disposed at the extension of the volute tongue. When the first impeller 12 and the exhaust port 11c are connected, the exhaust port baffle 113 is attached to the volute 114.

[0053] Specifically, a fan typically includes a rotor and a volute 114 for housing the rotor. The volute 114 has an air outlet, and the connection between the volute 114 and the air outlet often has a tongue-shaped structure formed by the shell wall, called the volute tongue. Its function is to prevent some of the gas from circulating within the volute 114. When the airflow at the outlet of the rotating rotor blade channel passes near the volute tongue, the tongue splits it in two: most of the airflow flows along the channel to the fan outlet; a small portion of the airflow flows back to the volute 114 through the gap between the volute tongue and the rotor, and after rotating once within the volute 114 with the rotor, it returns to the volute tongue to participate in a new split.

[0054] Compared to the configuration where the exhaust vent baffle 113 is located at the exhaust vent 11c, or where the exhaust vent baffle 113 is formed separately within the housing 11, the exhaust vent baffle 113 located at the volute tongue provides better guidance. Furthermore, the exhaust vent baffle 113 located at the volute tongue effectively reduces the noise generated by the first impeller 12. To achieve this, the shape and dimensions of the exhaust vent baffle 113 can be specifically calculated and designed.

[0055] Please see Figure 1 In one optional embodiment, the air handling device 100 is an air conditioner. Alternatively, the air handling device 100 can also be a fresh air system, an air purifier, etc. That is, the air handling device 100 described above can be used independently to purify indoor pollutants. It can also be used as an adsorption-desorption module, installed in common air handling equipment such as fresh air systems, air purifiers, and air conditioners, to achieve the integration and diversification of these devices' functions, thereby meeting diverse user needs.

[0056] Please see Figure 1In one optional embodiment, the air conditioner includes a housing, with a housing 11 formed within the housing. An air conditioner body 20 is also disposed within the housing, and a second impeller is disposed within the air conditioner body 20. The air conditioner body 20 also has a main air inlet 11a and a main air outlet 11b. In one embodiment, the first impeller 12 and the second impeller can be coaxially arranged. Optionally, both the first impeller 12 and the second impeller are axial flow impellers. In another embodiment, the housing 11 and its internal components together form a desorption module. This desorption module can be used independently to adsorb indoor pollutants such as formaldehyde and also has the function of desorbing pollutants from the purification mesh 13. The desorption module can also be integrated into the air conditioner body 20. In one embodiment, the desorption module is integrated into the air conditioner indoor unit, which includes a housing, with the housing 11 formed as a part of the housing, or the housing 11 and the housing are detachably connected. The air conditioner body 20, i.e., the air conditioner indoor unit body, is also disposed within the housing. Correspondingly, the outer casing is also provided with a main air inlet 11a and a main air outlet 11b. The adsorption module can be turned on and put into operation in either adsorption or desorption mode as needed when indoor air purification of pollutants is required.

[0057] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An air handling device, characterized in that, include: The housing includes a receiving cavity, a volute with a volute tongue, and an air inlet, an air outlet, and an exhaust outlet communicating with the receiving cavity. The air outlet is located above the exhaust outlet. The housing also includes an air outlet baffle and an exhaust outlet baffle, with the air outlet baffle located at the air outlet and the exhaust outlet baffle located at the volute tongue. The first impeller is disposed inside the volute. A purification screen is disposed adjacent to the air inlet; A heating element is attached to the purification mesh; the heating element includes a first heating element, a second heating element, and a fourth heating element. The first heating element and the second heating element are respectively attached to opposite sides of the purification mesh, and the fourth heating element is attached to the bottom end of the purification mesh. A driving device and a guide rail are also provided inside the housing. The driving device is used to drive the fourth heating element to move along the guide rail and attach to the purification mesh, and the guide rail is used to limit the movement trajectory of the fourth heating element. The air handling device has a desorption mode. When the air handling device is in the desorption mode, the outlet baffle closes the outlet, the exhaust baffle is attached to the volute to make the first impeller and the exhaust port connected. The heating element is turned on, the pollutants on the purification screen are desorbed by heat, the airflow flows in from the inlet and carries the pollutants out from the exhaust port. The air handling device also has an adsorption mode. When the air handling device is in the adsorption mode, the air outlet baffle opens the air outlet, and the exhaust outlet baffle is located at the extension of the volute tongue so that the exhaust outlet baffle closes the exhaust outlet, the heating element is turned off, and the airflow flows in from the air inlet, passes through the purification screen, and flows out from the air outlet.

2. The air handling apparatus as claimed in claim 1, characterized in that, The housing is also provided with a fixing frame, which is detachably disposed inside the housing. The purification screen and the heating element are both disposed within the fixing frame, and the heating element is disposed between the fixing frame and the purification screen.

3. The air handling apparatus as described in claim 2, characterized in that, The fixing frame is made of bulk molding compound, polyphenylene sulfide, polyarylsulfone, or polyetheretherketone.

4. The air handling apparatus as claimed in claim 1, characterized in that, The purification net includes a carrier and an adsorbent. The adsorbent is coated on the carrier, and the carrier is made of honeycomb ceramic, aluminum honeycomb, or silicon carbide.

5. The air handling apparatus as claimed in claim 1, characterized in that, The heating element is made of MCH ceramic heating element, PTC, heating wire or graphene heating film.

6. The air handling apparatus as claimed in claim 1, characterized in that, The heating element includes multiple third heating elements, and the purification mesh has multiple spaced-apart receiving slots, through which the third heating elements are embedded in the purification mesh.

7. The air handling apparatus as claimed in claim 6, characterized in that, The number of the third heating element is not less than 2 and not more than 30.

8. The air handling apparatus according to any one of claims 1 to 7, characterized in that, The air handling device is an air conditioner.

9. The air handling apparatus as claimed in claim 8, characterized in that, The air conditioner includes an outer casing, the housing is formed in the outer casing, and an air conditioner body is also disposed inside the outer casing, and a second impeller is disposed inside the air conditioner body.

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