Improved disinfection and deodorization air conditioning unit

Abstract

The application discloses an improved disinfection and deodorization air conditioning unit. Air enters from a fresh air inlet, is humidified after passing through a first humidifying section, and becomes wet and has certain adhesion under the action of the first humidifying section, the first fin-shaped cooling coil and the second fin-shaped cooling coil and the sterilization net. The sterilization net forms a high-efficiency wet water film under the action of water vapor in the air conditioner. When the air flows, the bacteria and viruses in the air are intercepted by the wet first fin-shaped cooling coil, the wet second fin-shaped cooling coil and the wet sterilization net, so that better sterilization and disinfection effect on the bacteria and viruses in the air is achieved. In combination with the surface sterilization and disinfection of the inner wall made of the sterilization aluminum material in the lower box body, the three-dimensional disinfection effect is achieved. The sterilization and disinfection effect is generated by the manufacturing material of the equipment itself, no harmful substances are generated, no additional deodorization device and ultraviolet disinfection device are needed, and the manufacturing cost and daily maintenance cost are greatly reduced.

Description

Technical Field

[0001] This invention belongs to the field of air conditioning unit technology, and specifically relates to an improved disinfection and deodorization air conditioning unit. Background Technology

[0002] An air conditioning unit is a combined air conditioning system. Existing air conditioning units generally consist of three or more functional sections, such as: primary fresh air return section, surface cooling water baffle section, heating section, humidification section, secondary return air section, fan section, silencer section, medium-efficiency filter section, sterilization section, and heat recovery section. Different air handling requirements can be achieved through the combination of different functional sections.

[0003] For example, Chinese utility model patent with publication number "CN208504575U" discloses a purification air conditioning unit with a heat recovery device, including an air conditioning unit. The air conditioning unit has an upper box and a lower box. The upper box has a first fan, and the lower box has a second fan, a primary efficiency section, a surface cooling section, a heating section, a humidification section, a medium efficiency section, and a disinfection air outlet section in sequence. The upper box and the lower box are connected by a heat recovery device. The first fan and the second fan are both installed on one side of the heat recovery device, and the first fan is located above the second fan. The primary efficiency section, the surface cooling section, the heating section, the humidification section, the medium efficiency section, and the disinfection air outlet section are all installed on the other side of the heat recovery device. An ultraviolet sterilization device is also installed between the humidification section and the medium efficiency section.

[0004] For example, Chinese utility model patent with publication number "CN217330042U" discloses a fresh air conditioning unit with sterilization function, including a shell. One end of the shell is provided with a fresh air filter section and an exhaust section, and the other end is provided with an indoor return air filter section and an indoor supply air section. The shell is provided with a total heat exchange section, a sterilization component, a cooling and heating component, a supply air fan, and a silencer component in sequence. An electric ventilation valve is provided between the indoor return air filter section and the sterilization component. The indoor supply air section includes a supply air filter, a supply air flange, and an indoor air outlet arranged in sequence. The indoor return air filter section includes a return air filter, a return air flange, and an indoor return air outlet arranged in sequence. The exhaust section includes an exhaust fan, an exhaust flange, and an outdoor exhaust outlet arranged in sequence. The fresh air filter section includes a fresh air outlet, a fresh air flange, and a fresh air filter that cooperate with each other.

[0005] As mentioned above, most existing air conditioning units achieve sterilization and deodorization by setting up ultraviolet disinfection devices and deodorization devices with activated carbon, photocatalysts, or ozone. Since activated carbon has a weak ability to disinfect and deodorize, it can easily lead to poor disinfection and deodorization effects of the air conditioning unit. Deodorization devices with photocatalysts or ozone are expensive, and these deodorization devices usually need to be used in conjunction with ultraviolet disinfection devices, resulting in high overall manufacturing costs. The structure of the air conditioning unit still needs to be improved.

[0006] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to the occurrence of this case. Summary of the Invention

[0007] The purpose of this invention is to provide an improved disinfection and deodorization air conditioning unit with good disinfection and deodorization effects and low manufacturing cost.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An improved disinfection and deodorization air conditioning unit includes an air conditioning box with an upper box and a lower box. One end of the lower box is provided with a fresh air inlet and the other end is provided with an air outlet. The upper box is provided with an exhaust air outlet at one end corresponding to the fresh air inlet and a return air outlet at the other end. Between the fresh air inlet and the air outlet, there are sequentially arranged a fresh air section, a primary and secondary efficiency filter section, a first humidification section, a surface cooling section, a heating section, a second humidification section, a fan section, a flow equalization section, a sterilization filter section, and an air supply section.

[0010] The surface cooling section is equipped with a coil unit, which contains a first finned cooling coil and a second finned cooling coil. The first finned cooling coil and the second finned cooling coil are arranged sequentially along the direction from the fresh air inlet to the air outlet. A sterilization mesh is provided between the first finned cooling coil and the second finned cooling coil. The lower housing has an inner wall. The fins in the first finned cooling coil and the second finned cooling coil, as well as the inner wall, are all made of sterilization aluminum material.

[0011] Furthermore, the surface cooling section is also provided with a baffle plate, which is located near the heating section and is made of antibacterial aluminum material.

[0012] Furthermore, the sterilization filter segment has a sterilization mesh body, which includes multiple aluminum alloy wires. A gap is formed between adjacent aluminum alloy wires to block impurities and allow airflow. The surface of the aluminum alloy wires is coated with an anodized film, and the surface of the anodized film is coated with a sterilization layer.

[0013] Furthermore, a heat conversion section is provided between the primary and secondary filter sections and the first humidification section. The heat conversion section is arranged vertically and extends from the lower chamber to the upper chamber. The heat conversion section is a rotary heat recovery device or a plate-type cross heat recovery device.

[0014] Furthermore, between the exhaust vent and the return air vent, there is a sequentially arranged exhaust section, heat conversion section, intermediate section, primary filter section and return air section. The exhaust section is located above the fresh air section and the primary and secondary filter sections, and the exhaust section, the fresh air section and the primary and secondary filter sections are all located on the same side of the heat conversion section.

[0015] By adopting the aforementioned design scheme, the beneficial effects of the present invention are:

[0016] 1. In the air conditioning unit of the present invention, air enters from the fresh air inlet. After being humidified in the first humidification section, the air, the first and second finned cooling coils, and the sterilization net become moist and have a certain degree of adhesion under the action of the first humidification section. The sterilization net forms a highly efficient moist water film under the action of the air conditioner's water vapor. When the air flows, bacteria and viruses in the air are intercepted by the moistened first and second finned cooling coils and the moistened sterilization net. Since the fins are made of sterilization aluminum material, a better sterilization effect is achieved on bacteria and viruses in the air. At the same time, the air is sterilized and odors are removed. Combined with the surface sterilization of the inner wall of the lower cabinet made of sterilization aluminum material, a three-dimensional disinfection effect is produced. The content of bacteria and viruses in the air is greatly reduced, and the disinfection and deodorization effect is good. The present invention utilizes the sterilization effect generated by the materials used in the equipment itself without producing harmful substances, and there is no need to set up additional deodorization devices and ultraviolet disinfection devices, which greatly reduces manufacturing costs and daily maintenance costs.

[0017] 2. The air conditioning unit of the present invention has a three-dimensional disinfection effect. Through three-dimensional disinfection, the cell walls of bacteria and viruses are ruptured, thereby causing the bacteria and viruses to die. This prevents bacteria and viruses from surviving on the inner wall of the lower cabinet, solving the problem that bacteria and viruses in traditional air conditioning units are easy to survive on the inner wall of the air conditioning unit and are difficult to disinfect.

[0018] Furthermore, after the air is sterilized by the sterilization mesh and the finned cooling coil made of sterilization aluminum, it undergoes multiple sterilization processes, including the baffle plate made of sterilization aluminum material in the surface cooling section and the sterilization mesh in the sterilization filter section, achieving efficient and comprehensive disinfection and deodorization effects.

[0019] Furthermore, a heat exchange section is set between the upper and lower cabinets to convert indoor and outdoor air heat into energy, thereby reducing the load on the air conditioning system and achieving energy-saving effects.

[0020] Furthermore, the air fins are made of sterilizing aluminum material to form a disinfection module, which solves the problem that traditional air fins do not have a sterilization effect and naturally breed bacteria and viruses due to moisture during the use of air conditioners. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the air conditioning unit of the present invention.

[0022] Figure 2 This is a schematic cross-sectional view of the aluminum alloy wire in the air conditioning unit of the present invention.

[0023] In the picture:

[0024] 1-Fresh air inlet; 11-Fresh air section;

[0025] 12-Primary and secondary efficiency filtration stage; 13-First humidification stage;

[0026] 14-Surface cooling section; 141-First finned cooling coil;

[0027] 142 - Second finned cooling coil; 143 - Finned coil;

[0028] 144 - Sterilization net; 145 - Water baffle;

[0029] 15 - Heating section; 16 - Second humidification section;

[0030] 17 - Fan section; 18 - Flow equalization section;

[0031] 19 - Sterilization filter segment; 191 - Sterilization mesh body;

[0032] 192 - Aluminum alloy wire; 193 - Anodized film;

[0033] 194 - Sterilization layer;

[0034] 20 - Air supply section 2 - Air outlet;

[0035] 21-Heat conversion section;

[0036] 3-Exhaust vent;

[0037] 31 - Exhaust section; 32 - Intermediate section;

[0038] 33 - Primary filter section; 34 - Return air section;

[0039] 4 - Return air vent; 100 - Air conditioning unit;

[0040] 101 - Lower cabinet; 102 - Upper cabinet;

[0041] 103 - Inner wall. Detailed Implementation

[0042] 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 some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figures 1 to 2As shown, an improved disinfection and deodorization air conditioning unit includes an air conditioning unit 100 having a lower housing 101 and an upper housing 102. One end of the lower housing 101 is provided with a fresh air inlet 1, and the other end is provided with an air outlet 2. Between the fresh air inlet 1 and the air outlet 2, there are sequentially arranged a fresh air section 11, a primary and secondary filter section 12, a first humidification section 13, a surface cooling section 14, a heating section 15, a second humidification section 16, a fan section 17, a flow equalization section 18, a sterilization filter section 19, and an air supply section 20. The upper housing 102 is provided with an exhaust outlet 3 at one end corresponding to the fresh air inlet 1, and a return air outlet 4 at the other end. Between the exhaust outlet 3 and the return air outlet 4, there are sequentially arranged an exhaust section 31, an intermediate section 32, a primary filter section 33, and a return air section 34.

[0044] In the lower housing 101, the fresh air section 11 is a cavity for containing air. The primary and secondary filter section 12 is equipped with conventional primary and secondary filters for preliminary air filtration. Both the first humidification section 13 and the second humidification section 16 are equipped with steam humidifiers for humidifying the air. In this embodiment, the steam humidifier is a conventional steam humidifier in the art. The surface cooling section 14 is equipped with a conventional coil unit in the art, which contains multiple sets of finned cooling coils. The coil unit cools the air by introducing refrigerant into the multiple sets of finned cooling coils. It should be noted that in actual use, the number of finned cooling coils can be set according to actual needs. Unlike the prior art, the coil unit in this invention has two sets of finned cooling coils, namely, a first finned cooling coil 141 and a second finned cooling coil 142. The first finned cooling coil 141 and the second finned cooling coil 142 are arranged sequentially along the direction from the fresh air inlet 1 to the air outlet 2. In the present invention, the fins 143 of the first finned cooling coil 141 and the second finned cooling coil 142 are both made of sterilizing aluminum material; a sterilizing mesh 144 is provided between the first finned cooling coil 141 and the second finned cooling coil 142. The sterilizing mesh 144 can be a conventional sterilizing mesh in the art, such as the sterilizing mesh described in the authorization announcement number "CN212644886U" entitled "A Sterilizing Mesh and a Sterilizing Air Purifier"; in use, multiple sterilizing meshes 144 can be set between the first finned cooling coil 141 and the second finned cooling coil 142 according to the actual situation to achieve a better sterilization effect.

[0045] Furthermore, a baffle plate 145 is also provided in the surface cooling section 14. The baffle plate 145 is located near the heating section 15. Unlike the prior art, the baffle plate 145 in this invention is made of the aforementioned bactericidal aluminum material. In this invention, the bactericidal aluminum material in the retaining plate 143 and the baffle plate 145 is the antibacterial aluminum material described in the authorized announcement number "CN113089049A" entitled "An antibacterial aluminum and its manufacturing method". The antibacterial aluminum material has a long duration of antibacterial and bactericidal function. The uniform distribution of the number of antibacterial metal unit cells per unit area and the range of nanoscale particle size parameters of the antibacterial metal result in strong antibacterial and bactericidal performance of the antibacterial metal. The bactericidal mesh 144 and the retaining plate 143 and the baffle plate 145 made of bactericidal aluminum material can effectively disinfect viruses and bacteria in the air.

[0046] With the addition of the first humidification section 13, the air can be humidified as it passes through the first humidification section 13 and flows towards the surface cooling section 14, thus ensuring that the surface cooling section 14 has a certain humidity. The air, the first finned cooling coil 141, the second finned cooling coil 142, and the sterilization net 144 become humidified and have a certain degree of adhesion under the action of the first humidification section 13. When the humidified air passes through the first finned cooling coil 141, the second finned cooling coil 142, the sterilization net 144, and the baffle plate 145, the bacteria and viruses in the air can stay on the sterilization net 144, the finned 143 made of sterilization aluminum material, and the baffle plate 145 for a sufficient period of time, thereby achieving a further sterilization effect on the bacteria and viruses in the air, and removing odors from the air at the same time.

[0047] The lower box 101 has an inner wall 103. It should be noted that in this invention, the inner wall 103 is made of the above-mentioned bactericidal aluminum material. When air flows in the lower box 101, bacteria and viruses in the air will come into contact with the inner wall 103 of the lower box 101 and be disinfected by the bactericidal aluminum material of the inner wall 103, thus achieving the effect of three-dimensional disinfection.

[0048] Furthermore, a heat conversion section 21 is provided between the primary and secondary filter section 12 and the first humidification section 13. The heat conversion section 21 is arranged vertically and extends from the lower housing 101 to the upper housing 102. A heat recovery device is provided in the heat conversion section 21. In practical applications, when the fresh air from the fresh air inlet 1 or the air recovered from the return air inlet 4 passes through the heat recovery device, the heat recovery device can convert the heat in the air, reduce the load of the air conditioning unit, and achieve energy saving. It should be noted that the heat recovery device provided in the heat conversion section 21 in this embodiment adopts a conventional rotary heat recovery device or a plate-type cross heat recovery device in the art. As long as the above effect can be achieved, the specific structure will not be described in detail here. The exhaust section 31 is located above the fresh air section 11 and the primary and secondary filter section 12, and the exhaust section 31, the fresh air section 11, and the primary and secondary filter section 12 are all located on the same side of the heat conversion section 21.

[0049] The heating section 15 is equipped with a conventional heating device. The cooling section 14, the heating section 15, and the second humidification section 16 can be turned on and off according to changes in indoor temperature or humidity and actual needs to ensure indoor comfort. The fan section 17 is used to transport the air in the fresh air section 11 to the air outlet 2. The fan section 17 is equipped with a conventional fan in the art, such as a centrifugal fan. The flow equalization section 18 is equipped with a conventional flow equalizer in the art. The function of the flow equalization section 18 is mainly to decelerate and diffuse the concentrated, high-speed airflow from the fan section 17 to the sterilization filter section 19 so that the air can pass through the sterilization filter section 19 at a uniform speed, which helps to improve the sterilization effect of the sterilization filter section 19.

[0050] The sterilization filter segment 19 has a sterilization mesh body 191, which includes multiple aluminum alloy wires 192. Gaps are formed between adjacent aluminum alloy wires 192 to block impurities and allow airflow. Figure 2As shown, the surface of the aluminum alloy wire 192 is coated with an anodized film 193, and the surface of the anodized film 193 is coated with a bactericidal layer 194. In this invention, the aluminum alloy wires 192 can be arranged in parallel. Preferably, the aluminum alloy wires 192 are crisscrossed, specifically using a plain weave structure to form an interlacing structure of warp and weft yarns in a woven fabric. The bactericidal layer 194 is a copper layer or a silver layer. The bactericidal layer 194 is attached to the anodized film 193, thereby enabling the aluminum alloy wire 192 to have antibacterial and bactericidal effects. In this invention, the anodized film 193 is formed by a conventional aluminum alloy anodizing process, and the bactericidal layer 194 is formed by a conventional electrodeposition process, such as in the case of a patented product. Chinese invention patent CN104152969B, entitled "A Coloring Method for Silver-Copper Electrolytic Deposition on Aluminum Alloy," discloses the corresponding anodizing and electrodeposition processes. This invention only requires adjusting the corresponding parameters. Compared with existing filter mesh layers and multi-adsorption layer air conditioning filter structures, the bactericidal mesh 191 selected in this invention forms an anodized film 193 and a bactericidal layer 194 on the surface of aluminum alloy wire 192, allowing the air entering and exiting the bactericidal mesh 191 to contact the bactericidal layer 194. The bactericidal filter section 19, as the final disinfection module "protective section," achieves a highly efficient disinfection and deodorization effect. The air supply section 20 is a cavity for containing air.

[0051] In the upper housing 102, the return air section 34 is a cavity for containing air. The primary filter section 33 is equipped with a conventional primary filter for preliminary filtration of the recovered air. The intermediate section 32 is a conventional maintenance section, which is mainly for convenient inspection or maintenance of various components inside the air conditioning unit 100. The exhaust section 31 is used to transport the recovered air in the return air section 34 to the exhaust port 3. Correspondingly, the exhaust section 31 is also equipped with a conventional fan in this field.

[0052] The disinfection and working principle of the air conditioning unit of this invention:

[0053] Utilizing the dynamic airflow and static sterilization material contact principle of the air conditioning unit, external air enters from the fresh air inlet 1 of the lower casing 101 and flows towards the air outlet 2. After preliminary filtration through the primary and secondary filter sections 12 and heat conversion through the heat conversion section 21, it continues to flow towards the air outlet 2. At this point, the air still contains a certain amount of bacteria and viruses. Subsequently, when the air passes through the first humidification section 13 and the surface cooling section 14, the first humidification section 13 is activated for humidification. The air, the first finned cooling coil 141, and the second finned cooling coil... Pipe 142 and sterilization screen 144 become humidified and adhesive under the action of the first humidification section 13. When the humidified air passes through the humidified first finned cooling coil 141, the humidified second finned cooling coil 142, and the humidification screen 144, bacteria and viruses in the air can stay on the sterilization screen 144 and the sterilization aluminum fins 143 for a sufficient time, thereby achieving a further sterilization effect on bacteria and viruses in the air. At the same time as sterilization, odors in the air are removed. When cooling is required in summer, the surface cooling section 14 is activated. The coil unit in the middle refrigeration unit circulates refrigerant into the first finned cooling coil 141 and the second finned cooling coil 142 to cool the air. When the air cooled by the coil unit passes through the baffle plate 145, the bacteria and viruses remaining in the air are further eliminated by the baffle plate 145's sterilizing aluminum. Moreover, the baffle plate 145, made of sterilizing aluminum material, is not prone to bacterial adhesion, avoiding the problem of bacteria growth and residue on traditional baffle plates. Afterward, the air passes through the heating section 15, the second humidification section 16, the fan section 17, and the flow equalization section 18 before reaching the sterilizing filter section 19. Correspondingly, when heating is needed in winter, the heating section 15 can be turned on to heat the air; after the air reaches the sterilization filter section 19, the bacteria and viruses remaining in the air are sterilized again by the sterilization filter 191, and then the clean air is sent out from the air outlet 2 through the air supply section 20; since the inner wall 103 of the lower box 101 is made of sterilization aluminum material, when the air flows in the lower box 101, the bacteria and viruses in the air will touch the inner wall 103 of the lower box 101 and be sterilized by the sterilization aluminum of its inner wall 103, thus producing a three-dimensional disinfection effect;

[0054] The recovered air enters the upper chamber 102 from the return air inlet 4 and moves towards the exhaust outlet 3. It passes through the return air section 34, the primary filter section 33 and the intermediate section 32 in sequence to reach the heat conversion section 21. After the recovered air is converted into heat in the upper chamber 102 by the heat conversion section 21, it passes through the exhaust section 31 and is then discharged through the exhaust outlet 3.

[0055] Compared with the prior art, the air conditioning unit of this invention, when air enters from the fresh air inlet 1 and is humidified by the first humidification section 13, becomes moist and adhesive due to the action of the first humidification section on the air, the first finned cooling coil 141, the second finned cooling coil 142, and the sterilization net 144. The sterilization net 144 forms a highly efficient moist water film under the action of the air conditioner's water vapor. As the air flows, bacteria and viruses in the air are intercepted by the moistened first finned cooling coil 141, the moistened second finned cooling coil 142, and the moistened sterilization net 144. This allows the bacteria and viruses in the air to be effectively eliminated by the sterilization net 144 in the surface cooling section 14, the finned coil 143 made of sterilizing aluminum material, and the baffle plate 145. This invention, based on the evaporation area of ​​the finned coils in traditional coil-type air conditioners, changes the coil-type air conditioner to a combination of two sets of finned cooling coils. Furthermore, the finned coil 143 of this invention is made of sterilizing aluminum material, forming a disinfection module, thus solving the problems of traditional... The traditional finned cooling coils lack sterilization effect and easily breed bacteria and viruses. However, by combining the sterilization mesh 144 set between the first finned cooling coil 141 and the second finned cooling coil 142 of this invention, a better sterilization effect is achieved. The air then passes through the sterilization mesh 191 in the sterilization filter segment 19 for multiple sterilization, and is further sterilized by the surface sterilization of the inner wall 103 made of sterilization aluminum material in the lower cabinet 101, resulting in a three-dimensional sterilization effect. This three-dimensional sterilization causes the cell walls of bacteria and viruses to rupture, leading to their death. This prevents bacteria and viruses from surviving on the inner wall 103 of the lower cabinet 101, solving the problem that bacteria and viruses in traditional air conditioning units easily survive on the inner wall of the unit and are difficult to sterilize. The content of bacteria and viruses in the air is greatly reduced, and the sterilization and deodorization effect is good. This invention utilizes the sterilization effect generated by the materials used in the equipment itself without producing harmful substances, and there is no need to set up additional deodorization devices and ultraviolet disinfection devices, which greatly reduces manufacturing costs and daily maintenance costs.

[0056] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved disinfection and deodorization air conditioning unit, comprising an air conditioning unit housing having an upper housing and a lower housing, wherein one end of the lower housing is provided with a fresh air inlet and the other end with an air outlet, and the upper housing is provided with an exhaust outlet at one end corresponding to the fresh air inlet and a return air inlet at the other end, characterized in that, Between the fresh air inlet and the air outlet, there are sequentially arranged a fresh air section, a primary and secondary efficiency filtration section, a first humidification section, a surface cooling section, a heating section, a second humidification section, a fan section, a flow equalization section, a sterilization filter section, and an air supply section; The surface cooling section is equipped with a coil unit, which contains a first finned cooling coil and a second finned cooling coil. The first finned cooling coil and the second finned cooling coil are arranged sequentially along the direction from the fresh air inlet to the air outlet. A sterilization mesh is provided between the first finned cooling coil and the second finned cooling coil. The lower housing has an inner wall. The fins in the first finned cooling coil and the second finned cooling coil, as well as the inner wall, are all made of sterilization aluminum material. The sterilization filter segment has a sterilization mesh body, which includes multiple aluminum alloy wires. A gap is formed between adjacent aluminum alloy wires to block impurities and allow airflow. The surface of the aluminum alloy wires is coated with an anodized film, and the surface of the anodized film is coated with a sterilization layer.

2. The improved disinfection and deodorization air conditioning unit according to claim 1, characterized in that, The surface cooling section is also equipped with a baffle plate, which is located near the heating section and is made of antibacterial aluminum material.

3. The improved disinfection and deodorization air conditioning unit according to claim 1, characterized in that, A heat conversion section is also provided between the primary and secondary efficiency filtration section and the first humidification section. The heat conversion section is arranged vertically and extends from the lower chamber to the upper chamber. The heat conversion section is a rotary heat recovery device or a plate-type cross heat recovery device.

4. An improved disinfection and deodorization air conditioning unit according to claim 3, characterized in that, Between the exhaust vent and the return air vent, there is a sequentially arranged exhaust section, heat conversion section, intermediate section, primary filter section and return air section. The exhaust section is located above the fresh air section and the primary and secondary filter sections, and the exhaust section, the fresh air section and the primary and secondary filter sections are all located on the same side of the heat conversion section.

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