CN211854282U

CN211854282U - Air purification device and household appliance

Info

Publication number: CN211854282U
Application number: CN202020299281.6U
Authority: CN
Inventors: 杨大伟; 陈新厂
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-11-03
Anticipated expiration: 2030-03-11

Abstract

The utility model discloses an air purification device and domestic appliance, air purification device includes casing, catalytic module and heating module. The shell is provided with an air inlet and an air outlet, and a purification air channel for communicating the air inlet and the air outlet is formed in the shell; the catalytic module is arranged in the purification air duct and is suitable for catalytically decomposing organic pollutants passing through the purification air duct; the heating module is arranged in the purification air channel and is positioned on the air inlet side of the catalytic module. The utility model discloses an air purification device can improve the purifying effect of the organic pollutant in the air purification device air-removing.

Description

Air purification device and household appliance

Technical Field

The utility model relates to the technical field of household appliances, in particular to air purification device and household appliance.

Background

At present, indoor volatile organic compounds and other pollution caused by building decoration materials and indoor daily chemical products are serious day by day, and for example, the toxicity of formaldehyde, benzene series and other volatile organic compounds is high, so that the long-term contact of the formaldehyde, the benzene series and other volatile organic compounds can cause serious influence on the life health of human bodies. Therefore, it is necessary to configure an air purification device having a function of removing organic pollutants (such as volatile organic compounds, abbreviated as TVOC) indoors. In the related art, the air purification device with the function of removing organic pollutants mainly adopts adsorbing materials such as activated carbon and the like to adsorb the organic pollutants, and belongs to physical adsorption. However, the adsorption material is a porous structure, so that the adsorption material is easy to absorb moisture in the air, and after the adsorption material is used for a period of time, the adsorption material is affected with damp to breed bacteria, so that secondary pollution is caused, and the purification effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an air purification device aims at improving the purifying effect that air purification device got rid of the organic pollutant in the air.

In order to achieve the above object, the present invention provides an air purification device. The air purification device comprises a shell, a catalysis module and a heating module. The shell is provided with an air inlet and an air outlet, and a purification air channel for communicating the air inlet and the air outlet is formed in the shell; the catalytic module is arranged in the purification air duct and is suitable for catalytically decomposing organic pollutants passing through the purification air duct; the heating module is arranged in the purification air channel and is positioned on the air inlet side of the catalytic module.

Optionally, the purification air duct comprises an air inlet section and an air outlet section connected with the air inlet section, and the ventilation cross section of the air outlet section is larger than that of the air inlet section; the heating module is arranged in the air inlet section, and the catalytic module is arranged in the air outlet section.

Optionally, purify the wind channel still include with the air inlet section with the wind-guiding section that the air-out section is connected, the ventilation cross section of wind-guiding section certainly the wind section to the air-out section is flaring design.

Optionally, the catalytic module includes a carrier and a catalyst material disposed on the carrier, wherein the carrier covers a ventilation cross section of the purification air duct, and an air passage extending along an air outlet direction of the purification air duct is configured on the carrier; the catalyst material is provided on an inner wall surface of the air flow passage.

Optionally, the carrier further has a windward end face facing the heating module, the windward end face being provided with the catalyst material.

Optionally, the catalyst material includes a noble metal material and a rare earth material.

Optionally, the air purification device further includes an adsorption module, the adsorption module is installed in the purification air duct, the adsorption module is located on an air inlet side of the catalytic module and is close to the heating module, the adsorption module is suitable for adsorbing organic pollutants, and then the organic pollutants are released to the catalytic module under heating of the heating module.

Optionally, the adsorption module is located between the heating module and the catalytic module, or the adsorption module is located on a side of the heating module facing away from the catalytic module.

Optionally, the distance between the adsorption module and the catalytic module is not less than 1cm and not more than 10 cm; and/or the distance between the adsorption module and the heating module is not less than 1cm and not more than 10 cm.

Optionally, the adsorption module comprises an adsorption body with a gap, and the adsorption body contains any one or more of activated carbon, silica, ceramic and alumina.

Optionally, the air purification device further comprises a heat dissipation module, the heat dissipation module is installed in the purification air duct, and the heat dissipation module is located on the air outlet side of the catalysis module.

Optionally, the heat dissipation module includes a heat dissipation body, a coolant storage tank, and a drive pump; the cooling system comprises a cooling body, a driving pump, a cooling liquid storage tank and a cooling liquid storage tank, wherein the cooling body is arranged in the purification air channel and provided with a flow channel for cooling liquid to flow through, and the cooling body is communicated with the cooling liquid storage tank through the driving pump.

Optionally, the heat dissipation module includes a heat dissipation frame and a plurality of heat dissipation fins configured in the heat dissipation frame, and a ventilation gap is formed between two adjacent heat dissipation fins at intervals.

Optionally, the air purification device further includes a heat dissipation casing, a heat dissipation air duct communicated with the air outlet of the casing is formed inside the heat dissipation casing, and the air flow in the purification air duct enters the heat dissipation air duct from the air outlet of the purification air duct and is then discharged through the heat dissipation air duct.

Optionally, the heat dissipation air duct has a plurality of heat dissipation sections arranged in a long strip shape, and a bending section arranged in a bending shape and connecting two adjacent heat dissipation sections.

The utility model also provides a household appliance, household appliance includes shell and air purification device, air purification device install in the shell. The air purification device comprises a shell, a catalysis module and a heating module. The shell is provided with an air inlet and an air outlet, and a purification air channel for communicating the air inlet and the air outlet is formed in the shell; the catalytic module is arranged in the purification air duct and is suitable for catalytically decomposing organic pollutants passing through the purification air duct; the heating module is arranged in the purification air channel and is positioned on the air inlet side of the catalytic module.

Optionally, the household appliance is any one of an air conditioner, a dehumidifier, a fan heater and an air purifier.

The technical scheme of the utility model, through configuration catalytic module in air purification device's purification wind channel, and set up heating module in catalytic module's air inlet side, thereby at air-purifying's in-process, utilize heating module heating air and catalytic module in the purification wind channel, so that organic pollutant in the air and catalytic module homoenergetic preheat the temperature of preferred earlier, and then when the higher air contact of temperature to the higher catalytic module, organic pollutant in the air can be catalytic decomposition fast, the reaction is abundant and efficient, organic pollutant purifying effect is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of an embodiment of an air purification apparatus of the present invention;

FIG. 2 is a schematic view of another embodiment of the air purification apparatus of the present invention;

fig. 3 is a schematic view of an embodiment of a heat dissipation device of the air purification apparatus in fig. 2.

The reference numbers illustrate:

the purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model discloses an instruction attached drawing 1 to 3 are the utility model provides an air purification device embodiment's attached drawing. The dashed arrows in fig. 1 and 2 indicate the direction of airflow. The air purification device can remove organic pollutants in the air and can achieve a better purification effect. The air purification device can be used independently and can also be applied to household appliances, and the household appliances can be any one of an air conditioner, a dehumidifier, a fan heater and an air purifier. As for the specific structure of the air cleaning device, the following embodiments will be described in detail.

Referring to fig. 1, in an embodiment of the air purification apparatus 100 of the present invention, the air purification apparatus 100 includes a housing 110, a catalyst module 120, and a heating module 130. The housing 110 is provided with an air inlet 111 and an air outlet 112, and a purification air duct 113 for communicating the air inlet 111 with the air outlet 112 is formed in the interior of the housing 110; the catalytic module 120 is installed in the purification air duct 113 to be suitable for catalytically decomposing organic pollutants passing through the purification air duct 113; the heating module 130 is installed in the clean air duct 113 and located on the air intake side of the catalyst module 120, so as to be adapted to heat the catalyst module 120 or the air passing through the clean air duct 113.

Specifically, the heating device may be an electric heating device including an electric heating material, and the electric heating material is one of copper, tungsten wire, PTC, silicon carbide, iron-aluminum alloy, nickel-chromium alloy, and molybdenum disilicide. When the heating device works, the working surface temperature of the heating device is 100-800 ℃, so that the catalytic module 120 or the air passing through the purifying air duct 113 is heated.

When the air purification device 100 works, air enters the purification air duct 113 from the air inlet 111 of the air purification device 100, the air is heated by the heating module 130, the air with the increased temperature passes through the catalysis module 120, and organic pollutants in the air with the higher temperature are quickly decomposed into small molecular substances harmless to human bodies under the catalysis of the catalysis module 120, so that the organic pollutants in the air are removed, and the air purification is realized; finally, the purified air is blown out from the outlet 112 of the air purification apparatus 100. The organic contaminants may be volatile organic compounds such as alkanes, aromatic hydrocarbons, alkenes, halocarbons, esters, aldehydes, ketones, and others, particularly formaldehyde, which is more common in furniture construction.

In the air purification process, since the heating module 130 is located on the air inlet side of the catalytic module 120, on one hand, the heating module 130 can heat the air first, so that the temperature of the air is raised to a better decomposition reaction temperature; in yet another aspect, the catalytic module 120 may also be heated such that the catalytic module 120 is heated to increase the temperature and increase the catalytic effect. Therefore, when the air with higher temperature contacts the catalytic module 120 with higher temperature, the organic pollutants in the air can be immediately and rapidly catalytically decomposed, the reaction is sufficient and the efficiency is high, and the purification effect of the organic pollutants is greatly improved.

Since the catalytic module 120 mainly plays a catalytic role in the air purification process, and the catalytic module 120 itself does not react, the catalytic module 120 has a long service life, that is, the catalytic module 120 does not need to be replaced for a long time, and the normal use of the air purification apparatus 100 can be ensured. Moreover, compared with the way of decomposing organic pollutants by plasma technology or high-voltage discharge technology, which is easy to generate ozone, the air purification device 100 of the present invention decomposes organic pollutants to generate small molecular substances, which is harmless to human body and more environmentally friendly and safe.

The technical scheme of the utility model, through configuration catalytic module 120 in air purification device 100's purification wind channel 113, and set up heating module 130 in catalytic module 120's air inlet side, thereby at air-purifying's in-process, utilize heating module 130 to heat air and catalytic module 120 in the purification wind channel 113, so that organic pollutant in the air and catalytic module 120 homoenergetic preheat the temperature of preferred earlier, and then when the higher air contact of temperature to the higher catalytic module 120 of temperature, organic pollutant in the air can be by catalytic decomposition fast, the reaction is abundant and efficient, improve organic pollutant purifying effect greatly.

It should be noted that if the air purification apparatus 100 is used alone, a fan needs to be disposed in the purification air duct 113 to drive air to circulate through the purification air duct 113 to achieve air purification. If the air purification apparatus 100 is applied to a household appliance, a fan may be disposed in the purification air duct 113, or a fan (such as a centrifugal fan, a cross-flow wind wheel, or an axial flow fan) of the household appliance itself may be used to drive air to circulate in the purification air duct 113 to achieve air purification.

Referring to fig. 1, in an embodiment, the heating module 130 may be disposed at a distance from the catalyst module 120, and the heating module 130 may also be in contact with the catalyst module 120. Here, the heating module 130 may be spaced apart from the catalyst module 120 to form a heating stroke between the heating module 130 and the catalyst module 120, and the air may be continuously heated while flowing in the heating stroke, which may help to enhance the air preheating effect.

Further, the purification air duct 113 includes an air inlet section 101 and an air outlet section 103 connected with the air inlet section 101, and a ventilation cross section of the air outlet section 103 is larger than that of the air inlet section 101; wherein, the heating module 130 is installed in the air inlet section 101, and the catalytic module 120 is installed in the air outlet section 103. The air is heated in the air inlet section 101 of the air purification duct 113, and organic pollutants carried by the air are catalytically decomposed when the air enters the air outlet section 103, so that the air purification is realized.

It is considered that the ventilation cross section of the air outlet section 103 of the purifying air duct 113 is larger than that of the air inlet section 101, that is, a sudden change of the ventilation cross section occurs at a position where the air inlet section 101 and the air outlet section 103 are connected, and the sudden change of the ventilation cross section increases the wind resistance and is not beneficial to the air flow. Therefore, in order to avoid this situation, optionally, the purifying air duct 113 further includes an air guiding section 102 connecting the air inlet section 101 and the air outlet section 103, and a ventilation cross section of the air guiding section 102 is designed to be flared from the air inlet section 101 to the air outlet section 103.

Specifically, the ventilation cross section of the air guiding section 102 is designed in a flaring shape from the air inlet section 101 to the air outlet section 103, that is, the ventilation cross section of the air guiding section 102 is gradually enlarged from the air inlet section 101 to the air outlet section 103, so that sudden changes of the ventilation cross section do not occur between the positions where the air inlet section 101 and the air outlet section 103 are connected, the air resistance of air flow is reduced, and the air flowing from the air inlet section 101 to the air outlet section is facilitated.

Referring to fig. 1, there may be various design types for the specific structure of the catalytic module 120 based on any of the above embodiments. In one embodiment, the catalytic module 120 includes a carrier 121 and a catalyst material disposed on the carrier 121, wherein the carrier 121 covers a ventilation cross section of the purification air duct 113, and an air passage 122 extending along an air outlet direction of the purification air duct 113 is configured on the carrier 121; the catalyst material is provided on an inner wall surface of the air flow passage 122.

Specifically, the air passage 122 formed in the carrier 121 extends in the same direction as the clean air duct 113, so that air passes through the air passage. The catalyst material of the catalytic module 120 is uniformly disposed on the inner peripheral wall of the air passage 122, and the process of disposing the catalyst material in the air passage 122 of the carrier 121 may be any one of dipping, spraying, laser deposition, and chemical vapor deposition. When air passes through the air passage 122 of the carrier 121, the air is catalyzed by the catalyst material attached to the inner wall of the air passage 122 to undergo decomposition reaction. The air passage 122 can be designed to be longer, which helps to make the organic pollutants in the air fully decomposed and improve the air purification efficiency.

Further, the carrier 121 has a windward end surface facing the heating module 130, and the windward end surface can also contact the air passing through the purification air duct 113, so the catalyst material can be further disposed on the windward end surface to increase the contact area of the catalytic module 120 and the air, and enhance the catalytic effect.

In the above embodiment, as for the material of the carrier 121 of the catalytic module 120, the carrier 121 may be made of an alloy formed by combining any one or more of diamond, silver, aluminum, copper, gold, iron, tin and lead, so that the carrier 121 has high heat resistance, stability and strength. For the catalyst material of the catalytic module 120, the catalyst material may optionally include a noble metal material and a rare earth material. The noble metal material can make the oxide in the TVOC generate reduction reaction, and the rare earth material makes the reducing substance in the TVOC generate oxidation reaction, thereby achieving the effect of efficiently removing the TVOC. Among them, the rare earth material may be, but is not limited to, zirconium solid solution material, cerium oxide, praseodymium oxide, lanthanum oxide, mixtures thereof, and the like. The noble metal material may be, but is not limited to, Pt, Rh, Pd, etc.

Based on any of the above embodiments, it is considered that when the content of the organic pollutants in the air is high, if the content of the organic pollutants exceeds the catalytic decomposition capability of the catalytic module 120, a part of the organic matters in the air may be directly blown out without being catalyzed and decomposed. In order to solve the problem, the air purification apparatus 100 further includes an adsorption module 140, the adsorption module 140 is configured on the purification air duct 113, the adsorption module 140 is located on the air inlet side of the catalytic module 120 and is close to the heating module 130, the adsorption module 140 is adapted to adsorb organic pollutants and then release the organic pollutants to the catalytic module 120 under the heating of the heating module 130.

Specifically, when the air flow in the clean air duct 113 passes through the adsorption module 140, the organic pollutants in the air are adsorbed and captured by the adsorption module 140; after the adsorption module 140 is saturated, the adsorption module 140 gradually releases the adsorbed and captured organic pollutants to the catalytic module 120 under the heating action of the heating module 130, so that the catalytic module 120 can perform catalytic decomposition, thereby preventing the organic pollutants in the air from passing through the catalytic module 120 in a concentrated and one-time manner, and greatly improving the purification effect. In addition, in the above process, the saturated adsorption module 140 is restored to the unsaturated state after releasing the organic pollutants, so that the adsorption module 140 in the unsaturated state can continue to adsorb the organic pollutants in the air, thereby realizing multiple recycling and effectively prolonging the service life of the adsorption module 140.

For the actual position of the adsorption module 140 on the air inlet side of the catalytic module 120, the adsorption module 140 may be located between the heating module 130 and the catalytic module 120, or the adsorption module 140 is located on the side of the heating module 130 away from the catalytic module 120, and the adsorption module 140 is adapted to adsorb organic pollutants in the air. Specifically, in the present embodiment, the adsorption module 140 is disposed between the heating module 130 and the catalytic module 120, so that the adsorption module 140 is close to the heating module 130 and the catalytic module 120 at the same time, which is convenient for the heating module 130 to heat the adsorption module 140, and is also convenient for the adsorption module 140 to release the adsorbed organic pollutants to the catalytic module 120.

As for the structure of the adsorption module 140, there may be various structural design ways. For example, the adsorption module 140 optionally includes an adsorption body having voids, the adsorption body containing any one or combination of more of activated carbon, silica, ceramic, and alumina.

Referring to fig. 1, in an embodiment, the adsorption module 140 is installed in the purification air duct 113, and the adsorption module 140 is located between the heating module 130 and the catalysis module 120, so that the adsorption module 140 is far away from the air inlet 111 and the air outlet 112, the adsorption module 140 is prevented from being affected with damp, and the adsorption module 140 is not easily affected with damp and breeding bacteria under the heating action of the heating module 130. It is considered that, if the distance between the adsorption module 140 and the heating module 130 is too small, the adsorption module 140 is easily overheated, and the adsorption module 140 has a reduced ability to adsorb organic pollutants; if the distance between the adsorption module 140 and the heating module 130 is too large, the heating module 130 is far away from the adsorption module 140 and the catalytic module 120, which is not favorable for heating to promote the catalytic reaction.

In view of this, optionally, the spacing between the adsorption module 140 and the catalytic module 120 is not less than 1cm, and not more than 10 cm; and/or, the distance between the adsorption module 140 and the heating module 130 is not less than 1cm and not more than 10 cm. The adsorption module 140 and the heating module 130 are arranged at intervals, and the distance between the adsorption module 140 and the heating module 130 is not smaller than 1cm and not larger than 10cm, so that the distance between the adsorption module 140 and the heating module 130 is suitable, and the adsorption module 140 can adsorb more organic pollutants. The spacing between the adsorption module 140 and the heating module 130 may be, but is not limited to: 2cm, 4cm, 5cm, 6cm, 7 cm.

The adsorption module 140 and the catalytic module 120 are arranged at intervals, and the distance between the adsorption module 140 and the catalytic module 120 is not less than 1cm and not more than 10cm, so that organic pollutants released by the adsorption module 140 can smoothly enter the air passing channel 122 of the catalytic module 120, and the phenomenon that the organic pollutants are shielded by the end face of the catalytic module 120 due to too close distance and are difficult to enter the air passing channel 122 of the catalytic module is avoided. The spacing between the adsorption module 140 and the catalytic module 120 may be, but is not limited to: 2cm, 4cm, 5cm, 6cm, 7 cm.

Referring to fig. 1, according to any of the above embodiments, the temperature of the air passing through the catalytic module 120 may be higher, and thus it is not suitable to be directly sent to the indoor environment. For this purpose, the air purification apparatus 100 further includes a heat dissipation module 150, the heat dissipation module 150 is configured in the purification air duct 113, and the heat dissipation module 150 is located at the air outlet side of the catalytic module 120, so as to be suitable for dissipating heat of air passing through the catalytic module 120, and properly reduce the temperature of the air to a more comfortable temperature, thereby avoiding discomfort of a user.

In the above embodiment, the heating module, the adsorption module, the catalytic module, and the heat dissipation module are sequentially arranged in the purifying air duct of the air purifying device along the flowing direction of the air flow, so that the organic pollutants in the air flow passing through the purifying air duct sequentially undergo the processes of heating, adsorption and release, catalytic decomposition, and heat dissipation, thereby forming clean high-quality air with appropriate temperature. All modules work cooperatively and do not interfere with each other, and purification work is carried out in a standard and orderly manner.

There are various designs for the structure of the heat dissipation module 150, and the following are examples:

referring to fig. 1, in one embodiment, the heat dissipation module 150 includes a heat dissipation body 151, a coolant storage tank 152, and a driving pump 153; the heat radiator 151 is installed in the purge air duct 113, the heat radiator 151 has a flow path through which the cooling fluid flows, and the heat radiator 151 is communicated with the cooling fluid storage tank 152 by a driving pump 153. The heat dissipation member 151 may be a heat dissipation tube or a heat dissipation block, and only needs to have a flow channel for flowing a cooling fluid. As to the type of cooling liquid, the cooling liquid may be water, or brine or a refrigerant or other cooling liquid that can exchange heat.

When the heat dissipation module 150 works, the driving pump 153 drives the cooling liquid in the cooling liquid storage tank 152 to flow into the heat dissipation body 151, and absorbs heat of the air flow passing through the catalytic module 120, so that the air flow is cooled, and then the cooling liquid after heat exchange in the heat dissipation body 151 continuously flows back to the cooling liquid storage tank 152, so that recycling is realized. The heat radiating body 151 should be made of a metal material having a preferable heat transfer property, such as, but not limited to, any one of copper, aluminum, nickel, and alloys thereof.

Referring to fig. 2 and 3, in another embodiment, the heat dissipation module 150 includes a heat dissipation frame 154 and a plurality of heat dissipation fins 155 configured in the heat dissipation frame 154, and a ventilation gap is formed between two adjacent heat dissipation fins 155. Wherein, the heat dissipation frame 154 is fixedly connected with the housing 110; the material of the heat dissipation fins 155 may be, but is not limited to, any one of silver, copper, aluminum, steel, and alloys thereof. When the air passing through the catalytic module 120 enters the heat dissipation module 150, the air exchanges heat with the heat dissipation fins 155 of the heat dissipation module 150, and the heat of the air is conducted to the housing 110 through the heat dissipation frame 154 by the heat dissipation fins 155, and then is dissipated to the outside through the housing 110.

Theoretically, the material of the housing 110 may be plastic or metal, and to enhance the heat dissipation effect of the heat dissipation module 150, the housing 110 may be selected as metal, so that the heat dissipation module 150 conducts more heat outwards through the housing 110. Further, in order to enhance the heat dissipation effect of the heat dissipation module 150, the housing 110 is further configured with a heat dissipation casing 160, a heat dissipation air duct 161 communicated with the air outlet 112 of the housing 110 is formed inside the heat dissipation casing 160, and the air flow in the purification air duct 113 enters the heat dissipation air duct 161 from the air outlet 112 and is then discharged through the heat dissipation air duct 161.

It can be understood that the heat dissipation air duct 161 extends the path of the air flow in the air purification apparatus 100, the air flow passing through the purification air duct 113 flows into the heat dissipation air duct 161 of the heat dissipation casing 160 after being dissipated heat by the heat dissipation module 150, and the heat of the air flow is conducted outwards through the heat dissipation casing 160 during the flowing process of the heat dissipation air duct 161, so as to achieve heat dissipation. The material of the heat dissipation casing 160 can be selected to be a metal material, so that the heat dissipation casing 160 has a better heat conduction efficiency, and the heat dissipation effect of the heat dissipation casing 160 is enhanced.

The heat dissipation air duct can be arranged in a long strip shape, can also be arranged in a multi-fold curve shape, and can also be arranged in a spiral winding manner. Specifically, the heat dissipation air duct 161 has a plurality of heat dissipation sections 1611 arranged in a long strip shape, and a bent section 1612 arranged in a bent shape and connecting two adjacent heat dissipation sections 1611. By the design, the heat dissipation air duct 161 can be arranged in a multi-fold bent shape, such as a U shape or an S shape, so that on one hand, the length of the heat dissipation air duct 161 can be prolonged, and the heat dissipation efficiency is enhanced; on the other hand, the volume of the occupied space of the heat dissipation case 160 can be reduced, which is convenient for placement or storage.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An air purification apparatus, characterized in that the air purification apparatus comprises:

the air purifier comprises a shell, a first air inlet, a second air outlet, a first air inlet and a second air outlet, wherein the shell is provided with the air inlet and the air outlet and is constructed to form a purification air duct which communicates the air inlet with the air outlet;

the catalytic module is arranged in the purification air duct and is suitable for catalytically decomposing organic pollutants passing through the purification air duct; and

and the heating module is arranged in the purification air channel and is positioned on the air inlet side of the catalytic module.

2. The air purification device of claim 1, wherein the purification air duct comprises an air inlet section and an air outlet section connected with the air inlet section, and the ventilation cross section of the air outlet section is larger than that of the air inlet section; the heating module is arranged in the air inlet section, and the catalytic module is arranged in the air outlet section.

3. The air purification device as claimed in claim 2, wherein the purification air duct further comprises a wind guide section connecting the wind inlet section and the wind outlet section, and the ventilation cross section of the wind guide section is flared from the wind section to the wind outlet section.

4. The air purification device according to any one of claims 1 to 3, wherein the catalytic module comprises a carrier and a catalyst material disposed on the carrier, wherein the carrier covers the ventilation cross section of the purification air duct, and an air passage extending in the air outlet direction of the purification air duct is configured on the carrier; the catalyst material is provided on an inner wall surface of the air flow passage.

5. The air cleaning apparatus according to claim 4, wherein the carrier body further has a windward end face facing the heating module, the windward end face being provided with the catalyst material.

6. The air purification apparatus of claim 4, wherein the catalyst material comprises a noble metal material and a rare earth material.

7. The air cleaning apparatus according to any one of claims 1 to 3, further comprising an adsorption module installed in the cleaning air duct, the adsorption module being located on an air intake side of the catalytic module and adjacent to the heating module, the adsorption module being adapted to adsorb organic pollutants and then release the organic pollutants to the catalytic module under heating of the heating module.

8. The air purification apparatus of claim 7, wherein the adsorption module is located between the heating module and the catalytic module; alternatively, the adsorption module is located on a side of the heating module facing away from the catalytic module.

9. The air cleaning apparatus according to claim 8, wherein a distance between the adsorption module and the catalytic module is not less than 1cm and not more than 10 cm; and/or the distance between the adsorption module and the heating module is not less than 1cm and not more than 10 cm.

10. The air purification device of claim 7, wherein the adsorption module comprises an adsorption body with a gap, and the adsorption body contains any one or more of activated carbon, silica, ceramic and alumina.

11. The air purification device according to any one of claims 1 to 3, further comprising a heat dissipation module, wherein the heat dissipation module is installed in the purification air duct, and the heat dissipation module is located on the air outlet side of the catalytic module.

12. The air cleaning apparatus according to claim 11, wherein the heat dissipation module includes a heat sink, a coolant storage tank, and a driving pump; the cooling body is arranged in the purification air channel, the cooling body is provided with a flow channel for cooling liquid to flow through, and the flow channel of the cooling body is communicated with the cooling liquid storage tank through the driving pump.

13. The air purification apparatus of claim 12, wherein the heat dissipation module comprises a heat dissipation frame and a plurality of heat dissipation fins configured in the heat dissipation frame, and a ventilation gap is formed between two adjacent heat dissipation fins.

14. The air purification device according to claim 11, further comprising a heat dissipation casing, wherein a heat dissipation air duct communicating with the air outlet of the housing is formed inside the heat dissipation casing, and the air flow in the purification air duct enters the heat dissipation air duct from the air outlet and is then discharged through the heat dissipation air duct.

15. The air cleaning apparatus according to claim 14, wherein the heat dissipation duct has a plurality of heat dissipation segments arranged in an elongated shape, and a curved segment arranged in a curved shape and connecting two adjacent heat dissipation segments.

16. A domestic appliance comprising a housing and an air cleaning device as claimed in any one of claims 1 to 15, said air cleaning device being mounted within said housing.

17. The household appliance according to claim 16, wherein the household appliance is any one of an air conditioner, a dehumidifier, a fan heater, or an air purifier.