CN101839581B - Staggered system of air conditioner of subway vehicle with UVC sterilization - Google Patents
Staggered system of air conditioner of subway vehicle with UVC sterilization Download PDFInfo
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- CN101839581B CN101839581B CN2010101756770A CN201010175677A CN101839581B CN 101839581 B CN101839581 B CN 101839581B CN 2010101756770 A CN2010101756770 A CN 2010101756770A CN 201010175677 A CN201010175677 A CN 201010175677A CN 101839581 B CN101839581 B CN 101839581B
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 16
- 238000009423 ventilation Methods 0.000 claims abstract description 11
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- 239000006096 absorbing agent Substances 0.000 claims description 24
- 230000035939 shock Effects 0.000 claims description 21
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 9
- 238000013016 damping Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 230000032683 aging Effects 0.000 claims description 2
- 239000005030 aluminium foil Substances 0.000 claims description 2
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- 241000894006 Bacteria Species 0.000 abstract description 5
- 238000004378 air conditioning Methods 0.000 abstract description 5
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention discloses a staggered system of an air conditioner of a subway vehicle with UVC sterilization, which comprises at least two heat exchange systems which are mutually staggered. The heat exchange systems comprise condensers, dry filters, throttling devices, evaporators, compressors, axial flow fans and ventilators, which are sequentially connected end to end and form a closed loop. The air inlet sides or the air outlet sides of the evaporators are provided with UVC sterilization devices. By adopting the mutually staggered structure of the systems, the problem of overlarge temperature difference of an outlet of each ventilator when a machine set runs in a half cold (half warm) mode is solved; and the UVC sterilization devices are installed at the air inlet sides or the air outlet sides of the evaporators, which kills microorganisms, such as bacteria and the like, on the evaporators and in ventilation air effectively, decreases the air resistance and ensures the heat exchange effect. The UVC sterilization devices do not generate a pollution source and is unlike to other detergents which cause the condition that passengers contact with dangerous chemical substances or toxic smog to cause the injury of a human body. The invention can be suitable for the air conditioning units of various subway vehicles and has very extensive market prospect.
Description
[technical field]
The present invention relates to the air conditioner of subway vehicle product scope, be specifically related to that air conditioner of subway vehicle machine set system pipeline is arranged and unit inner air sterilizing and purifying.
[background technology]
The air conditioner of subway vehicle unit adopts two autonomous systems at present mostly, and a compressor is independently controlled a system, and evaporimeter and the condenser in the connected system is unrelated between two systems separately.
When air-conditioning unit " half is cold " perhaps " partly warms up " mode operation, a system works, the another one system is out of service.This just causes system's refrigeration or system to warm up the another one system ventilation.Two ventilation blower leaving air temps are inconsistent.
Air conditioner of subway vehicle in use, the service intervals time is long, the air-conditioning unit is inner because of cleaning for a long time, piles up dirts such as dust easily.Because internal temperature humidity is suitable, mould, bacterium are easy to grow.Behind the air-conditioning unit operation, pollution sources such as air foreign matter, virus are just along with the air delivery duct is brought vehicle passenger cab into.The passenger sucks these pollution sources will be easy to generate health problem such as rhinitis, headache, respiratory tract infection, asthma etc.
The air conditioner of subway vehicle unit all is air to be carried out humiture regulate at present, and purified treatment does not carry out disinfection.
[summary of the invention]
The object of the invention solves the problems of the prior art exactly, proposes a kind of staggered system of air conditioner of subway vehicle of UVC sterilization, makes unit when " half is cold " perhaps " partly warms up " mode operation, and each ventilation blower leaving air temp of unit is consistent; Can also eliminate airborne microorganism, safeguard that the passenger's is healthy.
For realizing above-mentioned purpose; The present invention proposes a kind of staggered system of air conditioner of subway vehicle of UVC sterilization; Comprise at least two heat-exchange systems; Each heat-exchange system comprises compressor, condenser, device for drying and filtering, throttling arrangement, the evaporimeter that joins end to end successively and form loop, and said condenser rear is provided with the axial flow blower to condenser blowing heat radiation, and the place ahead of said evaporimeter is provided with the ventilation blower to the vehicle passenger cab blowing; Per two heat-exchange systems are interlaced in the said heat-exchange system, and the inlet side of said evaporimeter or air side are provided with the UVC bactericidal unit.
As preferably; The quantity of said heat-exchange system is 2; 2 heat-exchange systems are interlaced; The output that is the first throttle device is connected respectively to the input of first evaporimeter and the input of second evaporimeter, and the output of the output of first evaporimeter and second evaporimeter all is connected to the input of first compressor, and a UVC bactericidal unit is installed in first evaporimeter inlet side or the air side; The output of second throttling arrangement is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of second compressor, and the 2nd UVC bactericidal unit is installed in second evaporimeter inlet side or the air side.Half coil pipe of said evaporimeter is that system 1 is used, and half coil pipe is that system 2 is used in addition.Adopt two interlaced arranging of heat-exchange system, can avoid a system to quit work, during the another one system works, two ventilation blower leaving air temps differ too big problem.
As preferably; The quantity of said heat-exchange system is 4; 4 heat-exchange systems are interlaced in twos; The output that is the first throttle device is connected respectively to the input of first evaporimeter and the input of second evaporimeter, and the output of the output of first evaporimeter and second evaporimeter all is connected to the input of first compressor, and a UVC bactericidal unit is installed in first evaporimeter inlet side or the air side; The output of second throttling arrangement is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of second compressor, and the 2nd UVC bactericidal unit is installed in second evaporimeter inlet side or the air side; The output of the 3rd throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 3rd compressor, and the 3rd UVC bactericidal unit is installed in the 3rd evaporimeter inlet side or air side; The output of the 4th throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 4th compressor, and the 4th UVC bactericidal unit is installed in the 4th evaporimeter inlet side or air side.Said half coil pipe of first evaporimeter is that system 1 is used, and half coil pipe is that system 2 is used in addition; Half coil pipe of second evaporimeter is that system 1 is used, and half coil pipe is that system 2 is used in addition; Half coil pipe of the 3rd evaporimeter is that system 3 is used, and half coil pipe is that system 4 is used in addition; Half coil pipe of the 4th evaporimeter is that system 3 is used, and half coil pipe is that system 4 is used in addition.Adopt 4 interlaced arranging of heat-exchange system, can avoid one or two system to quit work, during several in addition systems operate as normal, the ventilation blower leaving air temp differs too big problem.
As preferably, said UVC bactericidal unit comprises power supply, the lamp socket that is connected with power supply, is installed in the UVC bactericidal unit fluorescent tube on the lamp socket, and said UVC bactericidal unit is installed in the inlet side or the air side of evaporimeter.Simple in structure, cost is low, and bactericidal effect is better.
As preferably; Said UVC bactericidal unit fluorescent tube adopts vibration absorber to be installed in the inlet side or the air side of evaporimeter; Said vibration damping fixture comprises anchor ear, heat-preservation cotton, shock absorber, shock absorber mount pad, and said UVC bactericidal unit fluorescent tube is positioned on hoop in the anchor ear dress, embraces and fluorescent tube is fixed on the shock absorber with securing member; Be separated with heat-preservation cotton between said UVC bactericidal unit fluorescent tube and the shock absorber, said shock absorber adopts securing member to be fixed on the shock absorber mount pad.During less than 300mm, generally adopt 2 anchor ears to fix quartz burner in fluorescent tube length, fluorescent tube length can adopt 3 above anchor ears to fix during greater than 300mm.The fluorescent tube material is glass or quartz material, and this vibration-proof structure can solve UVC bactericidal unit pipe and cause the problem of fracture along with the train high vibration at unit, has satisfied the needs of railcar high-speed cruising.
As preferably, said air conditioner of subway vehicle unit also is equipped with travel switch, and said travel switch is installed in below the service cover, is connected to the UVC bactericidal unit.When UVC bactericidal unit service cover is opened, travel switch will cut off with UVC bactericidal unit wire connecting, and the UVC bactericidal unit quits work, and has protected the attendant when opening service cover, can not receive uv damage; When service cover was closed, travel switch is closed to be communicated with the UVC bactericidal unit, and the UVC bactericidal unit is started working.
Beneficial effect of the present invention: the present invention uses staggered system of air conditioner of subway vehicle, and the UVC bactericidal unit is installed before the evaporimeter air intake or after the air-out, can make unit when " half is cold " perhaps " partly warms up " operation, and each ventilation blower leaving air temp of unit is even.The use of UVC sterilamp has guaranteed to have carried out purified treatment before air gets into vehicle passenger cab; Eliminated pollutants such as airborne mould, bacterium, kept the environmental sanitation in the vehicle passenger cab, safeguarded that the passenger's is healthy; Reduce the heat exchanger flowing resistance, guaranteed the heat exchange effect.Ultraviolet ray does not produce pollution sources in addition, lets the passenger be infected with hazardous chemicals or toxic smog unlike other cleaning agents, causes the injury to human body.The present invention can be applicable to all kinds of air conditioner of subway vehicle units, has boundless market prospects and economic worth.
Characteristic of the present invention and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is the systematic schematic diagram of a kind of staggered system of air conditioner of subway vehicle with UVC sterilization of the present invention;
Fig. 2 is the structural representation of UVC bactericidal unit among the present invention;
Fig. 3 is the structural representation of vibration absorber among the present invention;
Fig. 4 is the structural representation of the shock absorber of vibration absorber among the present invention;
Fig. 5 is travel switch fundamental diagram among the present invention.
[specific embodiment]
Embodiment 1:
As shown in Figure 1; The quantity of said heat-exchange system is two; Two heat-exchange systems are interlaced; The output that is first throttle device 3 is connected respectively to the input of first evaporimeter 1 and the input of second evaporimeter 11, and the output of the output of first evaporimeter 1 and second evaporimeter 11 all is connected to the input of first compressor 5, and a UVC bactericidal unit 21 is installed in first evaporimeter, 1 air side; The output of second throttling arrangement 13 is connected respectively to the input of first evaporimeter 1 and the input of second evaporimeter 11; The output of the output of first evaporimeter 1 and second evaporimeter 11 all is connected to the input of second compressor 15, and the 2nd UVC bactericidal unit 22 is installed in second evaporimeter, 11 air sides.Present embodiment adopts the interlaced structure of system; Having solved unit is that a system quits work at " half is cold " (half is warm) mode operation, and each ventilation blower outlet blows out the excessive problem of wind-warm syndrome difference during another one system refrigeration (heating) running, and the UVC bactericidal unit is installed in the air side of evaporimeter; Effectively kill on the evaporimeter with ventilating air in microorganisms such as bacterium; Keep the evaporimeter cleaning, reduce air drag, guarantee the heat exchange effect.Technique effect is obvious, is most preferred embodiment of the present invention.
In the present embodiment, UVC bactericidal unit 21 and totally two groups of UVC bactericidal units 22, two groups of structures are identical.Application need in the air conditioner of subway vehicle unit solves following problem:
1.UVC the bactericidal unit fluorescent tube is quartzy or glass material mostly, is breakables.The railcar speed of service is big, and vibration is violent.Maximum operational speed can reach 80km/h, and the air-conditioning unit is easy to cause UVC bactericidal unit fluorescent tube to break if the UVC bactericidal unit is installed unreasonable or effectiveness in vibration suppression is bad in along with the high vehicle speeds process.
To this problem; UVC bactericidal unit pipe 25 adopts vibration damping fixture as shown in Figure 3 to fix, and this vibration damping fixture comprises anchor ear 26, heat-preservation cotton 28, shock absorber 29, shock absorber mount pad 30, and said UVC bactericidal unit pipe 25 is installed in the anchor ear 26; Anchor ear 26 is fixed on the shock absorber 29 through securing member 27; Be separated with heat-preservation cotton 28 between said UVC bactericidal unit pipe 25 and the shock absorber 29, said shock absorber 29 adopts securing member 27 to be fixed on the shock absorber mount pad 30, and shock absorber mount pad 30 is welded on the unit framework 31; Unit framework 31 is meant the frame structure of whole unit, each parts in the unit that is used to install an air-conditioner.Under cost-effective situation, generally in lamp tube ends with the fixing UVC bactericidal unit fluorescent tube 25 of two vibration damping fixtures, fluorescent tube 25 is long when surpassing 300mm, can adopt 3 above vibration damping fixtures to fix.Shock absorber 29 structures as shown in Figure 4.
2, the ultraviolet ray of sending of UVC bactericidal unit can cause the erythema reaction, itches or burning sensation; Can cause the eyes foreign body sensation with slight uncomfortable to the irradiation of eyes, severe has eye burn feeling or severe pain, and the height photophobia is arranged, sheds tears etc.Ultraviolet ray irradiation repeatedly can cause chronic conjunctivitis, causes corneal distortion and causes vision disorder.
To this problem, as shown in Figure 5, outside the UVC bactericidal unit 21 service cover 35 is arranged, said UVC bactericidal unit 21 is provided with travel switch 36, and said travel switch 36 is connected to a UVC bactericidal unit 21.When service cover 35 was opened, the spring of travel switch 36 made the electric wire 37 of switch disconnection and UVC bactericidal unit 21; When service cover 35 was closed, travel switch 36 was closed under the cover plate extruding, is communicated with UVC bactericidal unit 21 through electric wire, and the UVC bactericidal unit is started working.UVC bactericidal unit 22 also is connected with travel switch, and principle is the same.Human body did not receive uv damage when the use of travel switch had guaranteed that service cover is opened.
3. aging phenomenon can take place in unit inner non-metallic material under the long-time irradiation of ultraviolet ray, like unit internal insulation cotton, electric wire, cable, screen pack, rubber blanket etc.
To this problem, adopt the heat-preservation cotton of band individual layer aluminium foil, on nonmetallic materials, coat tinfoil or aluminum foil material.
Embodiment 2:
The quantity of said heat-exchange system is 4; 4 heat-exchange systems are interlaced in twos; The output that is the first throttle device is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of first compressor, and a UVC bactericidal unit is installed in the first evaporimeter air side; The output of second throttling arrangement is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of second compressor, and the 2nd UVC bactericidal unit is installed in the second evaporimeter air side; The output of the 3rd throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 3rd compressor, and the 3rd UVC bactericidal unit is installed in the 3rd evaporimeter air side; The output of the 4th throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 4th compressor, and the 4th UVC bactericidal unit is installed in the 4th evaporimeter air side.Present embodiment adopts the interlaced structure of system, has solved one or two system of unit and has quit work, and each ventilation blower outlet blows out the excessive problem of wind-warm syndrome difference during several in addition system's refrigeration (heating) running.The UVC bactericidal unit is installed in the air side of evaporimeter, effectively kill on the evaporimeter with ventilating air in microorganisms such as bacterium, keep the evaporimeter cleaning, reduce air drag, guarantee the heat exchange effect.Because of the cross structure of its structure according to embodiment 1 is easy to learn, therefore, no longer illustrate.
In the present embodiment, adopt four groups of UVC bactericidal units, four groups of structures are identical.
The foregoing description is to explanation of the present invention, is not to qualification of the present invention, any scheme after the simple transformation of the present invention is all belonged to protection scope of the present invention.
Claims (6)
1. staggered system of air conditioner of subway vehicle with UVC sterilization; Comprise at least two heat-exchange systems; Each heat-exchange system comprises compressor, condenser, device for drying and filtering, throttling arrangement, the evaporimeter that joins end to end successively and form loop; Said condenser rear is provided with the axial flow blower to condenser blowing heat radiation; The place ahead of said evaporimeter is provided with the ventilation blower to the vehicle passenger cab blowing, and it is characterized in that: per two heat-exchange systems are interlaced in the said heat-exchange system, and the inlet side of said evaporimeter or air side are provided with the UVC bactericidal unit; Said UVC bactericidal unit comprises power supply, the lamp socket that is connected with power supply, is installed in the UVC bactericidal unit fluorescent tube on the lamp socket; Said UVC bactericidal unit fluorescent tube adopts the vibration damping fixture to be installed in the inlet side or the air side of evaporimeter, and said vibration damping fixture comprises anchor ear, heat-preservation cotton, shock absorber, shock absorber mount pad, and said UVC sterilizing lamp tube is held the back tightly with anchor ear and is fixed on the shock absorber through securing member; Be separated with heat-preservation cotton between said UVC bactericidal unit fluorescent tube and the shock absorber, said shock absorber adopts securing member to be fixed on the shock absorber mount pad.
2. a kind of staggered system of air conditioner of subway vehicle as claimed in claim 1 with the UVC sterilization; It is characterized in that: the quantity of said heat-exchange system is two; Two heat-exchange systems are interlaced; The output that is the first throttle device is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of first compressor, and a UVC bactericidal unit is installed in first evaporimeter inlet side or the air side; The output of second throttling arrangement is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of second compressor, and the 2nd UVC bactericidal unit is installed in second evaporimeter inlet side or the air side.
3. a kind of staggered system of air conditioner of subway vehicle as claimed in claim 1 with the UVC sterilization; It is characterized in that: the quantity of said heat-exchange system is four; Four heat-exchange systems are interlaced in twos; The output that is the first throttle device is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of first compressor, and a UVC bactericidal unit is installed in first evaporimeter inlet side or the air side; The output of second throttling arrangement is connected respectively to the input of first evaporimeter and the input of second evaporimeter; The output of the output of first evaporimeter and second evaporimeter all is connected to the input of second compressor, and the 2nd UVC bactericidal unit is installed in second evaporimeter inlet side or the air side; The output of the 3rd throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 3rd compressor, and the 3rd UVC bactericidal unit is installed in the 3rd evaporimeter inlet side or air side; The output of the 4th throttling arrangement is connected respectively to the input of the 3rd evaporimeter and the input of the 4th evaporimeter; The output of the output of the 3rd evaporimeter and the 4th evaporimeter all is connected to the input of the 4th compressor, and the 4th UVC bactericidal unit is installed in the 4th evaporimeter inlet side or air side.
4. a kind of staggered system of air conditioner of subway vehicle as claimed in claim 1 with the UVC sterilization; It is characterized in that: said UVC bactericidal unit has service cover outward; Said UVC bactericidal unit also is connected with travel switch, and travel switch is connected with the UVC bactericidal unit through electric wire.
5. a kind of staggered system of air conditioner of subway vehicle as claimed in claim 1 with UVC sterilization, it is characterized in that: said heat-preservation cotton can resist ultraviolet ray ageing more than 6 years, and heat-preservation cotton is one-sided to have aluminium foil layer.
6. a kind of staggered system of air conditioner of subway vehicle with the UVC sterilization as claimed in claim 1, it is characterized in that: said electric wire material coats with tinfoil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101756770A CN101839581B (en) | 2010-05-14 | 2010-05-14 | Staggered system of air conditioner of subway vehicle with UVC sterilization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101756770A CN101839581B (en) | 2010-05-14 | 2010-05-14 | Staggered system of air conditioner of subway vehicle with UVC sterilization |
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| CN101839581A CN101839581A (en) | 2010-09-22 |
| CN101839581B true CN101839581B (en) | 2012-09-26 |
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| CN2010101756770A Expired - Fee Related CN101839581B (en) | 2010-05-14 | 2010-05-14 | Staggered system of air conditioner of subway vehicle with UVC sterilization |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU176278U1 (en) * | 2017-12-01 | 2018-01-15 | Владимир Петрович Сизиков | UV BATTERICIDAL IRRADIATOR-RECIRCULATOR |
| WO2022144922A1 (en) * | 2020-12-31 | 2022-07-07 | Vaibhav Verma | System for generating germicidal properties in air conditioning systems in vehicles using ultraviolet light |
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| CN106274660B (en) * | 2016-08-30 | 2018-08-24 | 杭州衡源汽车科技有限公司 | Pure electric automobile boot equipped with headlamp |
| US11020501B1 (en) | 2018-02-20 | 2021-06-01 | Freestyle Partners, LLC | Handheld ultraviolet irradiation device having distance measurement system |
| KR20220160663A (en) * | 2020-04-01 | 2022-12-06 | 프리스타일 파트너스, 엘엘씨 | Systems and methods for safely investigating pathogens |
| DE102021208299A1 (en) | 2021-07-30 | 2023-02-02 | Volkswagen Aktiengesellschaft | Ventilation and/or air conditioning system for a motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU176278U1 (en) * | 2017-12-01 | 2018-01-15 | Владимир Петрович Сизиков | UV BATTERICIDAL IRRADIATOR-RECIRCULATOR |
| WO2022144922A1 (en) * | 2020-12-31 | 2022-07-07 | Vaibhav Verma | System for generating germicidal properties in air conditioning systems in vehicles using ultraviolet light |
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| CN101839581A (en) | 2010-09-22 |
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Address after: 311835, Zhejiang City, Zhuji province shop Town Industrial Zone Patentee after: ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT Co.,Ltd. Address before: 311835, Zhejiang City, Zhuji province shop Town Industrial Zone Patentee before: Zhejiang Dun'an Artificial Environment Equipment Co.,Ltd. |
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