Purification and disinfection structure of vehicle-mounted air conditioning system
By introducing multiple treatment structures into the on-board air conditioning system, including air pretreatment, plasma sterilization, photocatalysis and ozone catalytic decomposition devices, the problem of air filter element being unable to be purified and disinfected is solved, and effective removal of bacteria, odor and ozone is achieved. Significantly improves the air purification effect.
Patent Information
- Application Number
- CN202420431980.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-06
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-03-06
AI Technical Summary
In the prior art, the air filter alone cannot be fully purified and disinfected, and the odor in the air cannot be removed.
A purification and disinfection structure of an on-board air conditioning system was designed, including air pretreatment device, plasma sterilization device, photocatalytic sterilization device and ozone catalytic decomposition device. The air is purified through multiple treatment methods, and activated carbon double-layer filter and ultraviolet rays are used. Components such as lamp tubes and ozone catalytic decomposition filters can achieve effective removal of bacteria, odors and ozone.
It improves the effect of air purification and disinfection, can effectively remove more than 99.7% of particulate matter such as pollen, dust mites, fiber, etc., remove odors and harmful gases, comprehensively eliminate secondary pollution, and improve air quality.
Smart Images
Figure CN222223863U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of purification and disinfection, in particular to a purification and disinfection structure of a vehicle-mounted air-conditioning system. Background Art
[0002] Inside a car, due to the small space and the large number of items placed inside, bacteria are easily bred, affecting the health of the passengers. In order to purify the air inside the car, air filters are currently installed in the car to filter the air and improve the air quality.
[0003] However, in the above-mentioned prior art, relying solely on the air filter element cannot fully purify and disinfect the air, and cannot remove the odor in the air. Utility Model Content
[0004] The utility model aims to provide a purification and disinfection structure for a vehicle air-conditioning system, which solves the problem in the prior art that only relying on an air filter element cannot fully purify and disinfect the air and cannot remove odors in the air.
[0005] To achieve the above-mentioned objectives, the utility model provides a purification and disinfection structure of a vehicle air-conditioning system, comprising a shell, an air pretreatment device, a plasma sterilization device, a photocatalytic sterilization device and an ozone catalytic decomposition device, the shell having a pretreatment chamber and a sterilization chamber, the air pretreatment device being arranged on the shell and located inside the pretreatment chamber, the plasma sterilization device, the photocatalytic sterilization device and the ozone catalytic decomposition device being all arranged on the shell and located inside the sterilization chamber in sequence, the photocatalytic sterilization device being located on one side of the plasma sterilization device, and the ozone catalytic decomposition device being located on a side of the photocatalytic sterilization device away from the plasma sterilization device.
[0006] Among them, the air pretreatment device includes an activated carbon double-layer filter, a blower and an evaporator. The activated carbon double-layer filter is installed at the air inlet of the shell, the blower is fixedly connected to the shell and located inside the pretreatment chamber, and the evaporator is fixedly connected to the shell and located inside the sterilization chamber.
[0007] Wherein, the plasma sterilization device is located on one side of the evaporator.
[0008] Among them, the photocatalytic sterilization device includes a plurality of ultraviolet lamps and a photocatalytic filter, the plurality of ultraviolet lamps and the photocatalytic filter are fixedly connected to the shell and are distributed in sequence inside the sterilization chamber, the plurality of ultraviolet lamps are located in sequence on the side of the plasma sterilization device away from the evaporator, and the photocatalytic filter is located on the side of the plurality of ultraviolet lamps away from the plasma sterilization device.
[0009] Among them, the ozone catalytic decomposition device includes a changer, a hot water tank and an ozone catalytic decomposition filter. The changer and the hot water tank are fixedly connected to the shell and are distributed in sequence inside the sterilization chamber. The changer is located on the side of the photocatalytic filter away from the ultraviolet lamp tube, the hot water tank is located on the side of the changer away from the photocatalytic filter, and the ozone catalytic decomposition filter is located at the air outlet of the shell.
[0010] The utility model provides a purification and disinfection structure of a vehicle air-conditioning system. The air pretreatment device is started to suck outside air into the pretreatment chamber inside the shell, and then reaches the sterilization chamber, where it is ionized by the plasma sterilization device, and then the photocatalytic sterilization device performs sterilization. Finally, the ozone catalytic decomposition device captures ozone in the sterilized air, and then the air is discharged from the air outlet to complete air purification. The air is thus subjected to multiple treatments, effectively improving the effect of air purification and disinfection. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0012] Figure 1 It is an overall structural schematic diagram of the utility model.
[0013] Figure 2 It is a cross-sectional view of the sterilization chamber of the utility model.
[0014] Figure 3 It is a cross-sectional view of the pretreatment bin of the utility model.
[0015] 1-shell, 2-plasma sterilization device, 3-pretreatment chamber, 4-sterilization chamber, 5-activated carbon double-layer filter, 6-blower, 7-evaporator, 8-ultraviolet lamp, 9-photocatalytic filter, 10-direction changer, 11-hot water tank, 12-ozone catalytic decomposition filter. DETAILED DESCRIPTION
[0016] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0017] See also Figures 1 to 3The utility model provides a purification and disinfection structure of a vehicle air-conditioning system, comprising a shell 1, an air pretreatment device, a plasma sterilization device 2, a photocatalytic sterilization device and an ozone catalytic decomposition device, the shell 1 having a pretreatment chamber 3 and a sterilization chamber 4, the air pretreatment device is arranged on the shell 1 and located inside the pretreatment chamber 3, the plasma sterilization device 2, the photocatalytic sterilization device and the ozone catalytic decomposition device are all arranged on the shell 1 and located inside the sterilization chamber 4 in sequence, the photocatalytic sterilization device is located on one side of the plasma sterilization device 2, and the ozone catalytic decomposition device is located on the side of the photocatalytic sterilization device away from the plasma sterilization device 2.
[0018] In this embodiment, the air pretreatment device is started to suck the outside air into the pretreatment chamber 3 inside the shell 1, and then reaches the sterilization chamber 4, is ionized by the plasma sterilization device 2, and then is sterilized by the photocatalytic sterilization device. Finally, the ozone catalytic decomposition device captures the ozone in the sterilized air, and then the air is discharged from the air outlet to complete the air purification. The air is thus subjected to multiple treatments, effectively improving the effect of air purification and disinfection.
[0019] Furthermore, the air pretreatment device includes an activated carbon double-layer filter 5, a blower 6 and an evaporator 7, the activated carbon double-layer filter 5 is installed at the air inlet of the shell 1, the blower 6 is fixedly connected to the shell 1 and is located inside the pretreatment chamber 3, and the evaporator 7 is fixedly connected to the shell 1 and is located inside the sterilization chamber 4.
[0020] In this embodiment, the activated carbon double-layer filter 5 replaces the air filter element in the original automobile air conditioning system, which can effectively filter pollen, dust mites, fibers and other particulate matter in the air, and the removal efficiency can reach more than 99.7%. Mainly for the purification of national standard PM2.5, the activated carbon double-layer filter 5 is mainly used to remove odors and absorb harmful gases such as formaldehyde and ammonia. The outside air is sucked into the shell 1 through the blower 6, and then reaches the evaporator 7. The air passes through the evaporator 7 and then passes through the plasma sterilization device 2, so that the air is fully ionized.
[0021] Furthermore, the plasma sterilization device 2 is located on one side of the evaporator 7 .
[0022] In this embodiment, under the operation of the blower 6, air will pass through the plasma sterilization device 2 from the evaporator 7 to fully ionize the air. The plasma sterilization device 2 is mainly composed of a high-voltage electrode, a grounding electrode and a discharge medium tube. This design can ensure that the high-voltage electrode is not exposed, thereby improving the safety of the sterilization process and increasing the discharge area and discharge uniformity. The device is based on dielectric barrier discharge plasma sterilization technology. The outer surface of the discharge medium tube will form a surface dielectric barrier discharge, ionizing the local air into plasma, and utilizing the active groups and charged particle effects of the plasma to kill harmful microorganisms, thereby achieving a sterilization effect.
[0023] Furthermore, the photocatalytic sterilization device includes a plurality of ultraviolet lamp tubes 8 and a photocatalytic filter screen 9, and the plurality of ultraviolet lamp tubes 8 and the photocatalytic filter screen 9 are fixedly connected to the shell 1 and are distributed in sequence inside the sterilization chamber 4, and the plurality of ultraviolet lamp tubes 8 are located in sequence on the side of the plasma sterilization device 2 away from the evaporator 7, and the photocatalytic filter screen 9 is located on the side of the plurality of ultraviolet lamp tubes 8 away from the plasma sterilization device 2.
[0024] In this embodiment, the photocatalytic filter 9 is distributed in an arc shape, which can make the ultraviolet light fully sterilize and effectively prevent the ultraviolet light from irradiating into the car through the gap of the air conditioner, which is harmful to human health. The photocatalytic filter 9 can produce strong oxidizing hydroxyl radicals (OH) and superoxide anion radicals (O2-) under ultraviolet light irradiation, decompose and purify harmful gases in the air. The photocatalytic filter 9 is different from the traditional process. It uses a special process to evenly embed nano-grade rutile TiO2 on the foam nickel metal mesh, thereby combining the functions of photocatalyst material in sterilization, deodorization, and decomposition of organic matter with the ultra-stability characteristics of nickel. The photocatalytic method has a fast disinfection speed, reliable effect, energy saving and environmental protection, and the effect is best under ultraviolet irradiation with a wavelength of 254nm. Compared with other photocatalyst materials, TiO2 not only has high chemical activity and good heat resistance, but also is non-toxic and low in cost. In addition, the designed three-dimensional mesh structure filter can increase the gap (generally greater than 96%), increase the contact area with the air, and the resistance to air circulation is small, which can improve the air purification efficiency.
[0025] Furthermore, the ozone catalytic decomposition device includes a deflector 10, a hot water tank 11 and an ozone catalytic decomposition filter 12. The deflector 10 and the hot water tank are fixedly connected to the shell 1 and are sequentially distributed inside the sterilization chamber 4. The deflector 10 is located on the side of the photocatalytic filter 9 away from the ultraviolet lamp 8, the hot water tank is located on the side of the deflector 10 away from the photocatalytic filter 9, and the ozone catalytic decomposition filter 12 is located at the air outlet of the shell 1.
[0026] In this embodiment, the ozone catalytic decomposition filter 12 captures the ozone in the sterilized air, and the air is discharged from the air outlet, completing a round of air purification cycle.
[0027] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. A purification and disinfection structure for a vehicle air conditioning system, characterized in that: It includes a shell, an air pretreatment device, a plasma sterilization device, a photocatalytic sterilization device and an ozone catalytic decomposition device. The shell has a pretreatment chamber and a sterilization chamber. The air pretreatment device is arranged on the shell and located inside the pretreatment chamber. The plasma sterilization device, the photocatalytic sterilization device and the ozone catalytic decomposition device are all arranged on the shell and located inside the sterilization chamber in sequence. The photocatalytic sterilization device is located on one side of the plasma sterilization device, and the ozone catalytic decomposition device is located on the side of the photocatalytic sterilization device away from the plasma sterilization device.
2. The purification and disinfection structure of the vehicle air conditioning system according to claim 1, characterized in that: The air pretreatment device includes an activated carbon double-layer filter, a blower and an evaporator. The activated carbon double-layer filter is installed at the air inlet of the shell, the blower is fixedly connected to the shell and located inside the pretreatment chamber, and the evaporator is fixedly connected to the shell and located inside the sterilization chamber.
3. The purification and disinfection structure of the vehicle air conditioning system according to claim 2, characterized in that: The plasma sterilization device is located at one side of the evaporator.
4. The purification and disinfection structure of the vehicle air conditioning system as claimed in claim 3, characterized in that: The photocatalytic sterilization device includes a plurality of ultraviolet lamps and a photocatalytic filter, which are fixedly connected to the shell and are sequentially distributed inside the sterilization chamber. The plurality of ultraviolet lamps are sequentially located on a side of the plasma sterilization device away from the evaporator, and the photocatalytic filter is located on a side of the plurality of ultraviolet lamps away from the plasma sterilization device.
5. The purification and disinfection structure of the vehicle air conditioning system as claimed in claim 4, characterized in that: The ozone catalytic decomposition device includes a deflector, a hot water tank and an ozone catalytic decomposition filter. The deflector and the hot water tank are fixedly connected to the shell and are sequentially distributed inside the sterilization chamber. The deflector is located on a side of the photocatalytic filter away from the ultraviolet lamp tube, the hot water tank is located on a side of the deflector away from the photocatalytic filter, and the ozone catalytic decomposition filter is located at the air outlet of the shell.