CN111174349A - an air sterilizer - Google Patents
an air sterilizer Download PDFInfo
- Publication number
- CN111174349A CN111174349A CN202010113396.6A CN202010113396A CN111174349A CN 111174349 A CN111174349 A CN 111174349A CN 202010113396 A CN202010113396 A CN 202010113396A CN 111174349 A CN111174349 A CN 111174349A
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- China
- Prior art keywords
- air
- filter screen
- casing
- fan
- ultraviolet lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
本发明公开一种空气消毒机，包括壳体、风机、滤网、紫外线灯，壳体上具有进风口、出风口，滤网安装在进风口与出风口之间的壳体内，且滤网与壳体内壁紧密结合，用于实现空气由进风口流向出风口的风机安装在壳体内部，紫外线灯安装在进风口与出风口之间的壳体内，紫外线灯照射在滤网的迎风面上。本发明的有益效果：利用高效滤网有效拦截空气中的细菌和病毒，此外用紫外线直接照射滤网及时杀灭沉积的细菌和病毒，改变了现有紫外空气消毒机对空气进行直接照射的机理，不需要靠大风量及高强度紫外灯来弥补杀菌效率不足的问题，继而降低了功耗，降低了整机噪音，具有小体积、低功耗、低噪音、杀菌效率高等特点。
The invention discloses an air sterilizer, comprising a casing, a fan, a filter screen and an ultraviolet lamp. The casing is provided with an air inlet and an air outlet, the filter screen is installed in the casing between the air inlet and the air outlet, and the filter screen is connected to the The inner wall of the casing is tightly combined, and the fan used to realize the flow of air from the air inlet to the air outlet is installed inside the casing, and the ultraviolet lamp is installed in the casing between the air inlet and the air outlet, and the ultraviolet lamp is irradiated on the windward side of the filter screen. The beneficial effects of the present invention are as follows: the high-efficiency filter screen is used to effectively intercept bacteria and viruses in the air, and the filter screen is directly irradiated with ultraviolet rays to kill the deposited bacteria and viruses in time, which changes the mechanism that the existing ultraviolet air sterilizer directly irradiates the air. , It does not need to rely on large air volume and high-intensity ultraviolet lamp to make up for the problem of insufficient sterilization efficiency, thereby reducing power consumption and reducing the noise of the whole machine. It has the characteristics of small size, low power consumption, low noise, and high sterilization efficiency.
Description
Technical Field
The invention relates to the field of air disinfectors, in particular to an ultraviolet air purifying disinfector which integrates efficient filter screen purification and ultraviolet disinfection, can be used in a man-machine co-located environment, is convenient to assemble and quick to install, and is suitable for civil use, such as families, offices, hotels, restaurants, schools and other scenes.
Background
Because of poor air circulation, a large amount of harmful bacteria and viruses are filled and bred. With the rapid development of public health service in China, people pay more attention to health, particularly SARS in 2003 and novel coronavirus pneumonia outbreak in 2020, and are more and more conscious of good indoor air quality.
The ultraviolet air sterilizer is a common air sterilizer and is also one of three indoor air sterilizers which can coexist in human and machine based on physical mechanism and indicated by the industry standard WS/T648-2019 general sanitation requirement of air sterilizer in 2019 of the State health and welfare Commission.
The ultraviolet air disinfector is mainly used for circulating air ultraviolet air disinfectors in the medical market. In order to increase the contact time between air flow and ultraviolet rays, according to the national standard GB28235-2011 safety and sanitation standard of ultraviolet air disinfectors, the circulating air volume when leaving a factory is not less than 10 times of the applicable volume. Because the requirement of the air quantity is high, in view of the fact that the wind resistance cannot be high, otherwise, the noise and the power consumption are too high, the ultraviolet disinfection machine is generally only provided with a primary-effect filter and a medium-effect filter, such as an aluminum plate net and an activated carbon fiber net, and large particles are shielded from entering a fan and a shell. The circulating air ultraviolet air sterilizer is generally only suitable for occasions such as hospitals, production workshops and the like, has large volume, high noise and high energy consumption, and can not meet the requirements of common civil occasions.
In addition, present high-efficient filtering capability's air purifier comes to remove the haze to the air and gets rid of the microorganism, and this kind of equipment can only play the filtering action and do not have timely bacterium and the virus of intercepting on the filter screen to disinfect, disinfect through haze, bacterium and the virus of filter screen in to the air, and bacterium and virus breed very easily on the filter screen, produce secondary pollution to the environment.
In order to improve the disinfection function of the air purifier, it is necessary to increase the sterilization function and prolong the sterilization time without sacrificing noise and power consumption and increasing the air volume, application No.: 201810770304.4, it discloses an air purifier, the purifying method changes the installation direction of the fan, makes the axis of the fan consistent with the length direction of the shell, the air inlet direction of the fan is perpendicular to the air outlet direction, prolongs the circulation time of the air in the air purifier, at the same time, adds the ultraviolet lamp between the fan and the air outlet, the ultraviolet ray is used to sterilize the air. The method still irradiates air by ultraviolet rays, the mechanism of the method is similar to that of a circulating air ultraviolet sterilizer, and the flowing air is difficult to be effectively sterilized and disinfected in a short time.
Therefore, the ultraviolet air purifying and sterilizing machine suitable for civil scenes, such as scenes of families, offices, hotels, restaurants, schools and the like, needs to be solved urgently, and the ultraviolet air purifying and sterilizing machine which can effectively sterilize only by low air volume needs to be realized, so that the necessary characteristics of low power consumption, low noise, small volume, flexible assembly, convenient installation, safe use and human-computer co-location, which are required by civil scene products, can be ensured.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to solve the technical problems that an ultraviolet air sterilizer in the prior art is large in size, high in power consumption and large in noise, and flowing air is difficult to effectively sterilize in a short time.
The invention solves the technical problems through the following technical means:
the utility model provides an air sterilizing machine, includes casing, fan, filter screen, ultraviolet lamp, has air intake, air outlet on the casing, and the filter screen is installed in the casing between air intake and air outlet, and filter screen and shells inner wall in close connection for realize that the air is installed inside the casing by the fan of air intake flow direction air outlet, ultraviolet lamp installs in the casing between air intake and air outlet, ultraviolet lamp shines on the windward side of filter screen.
After the fan is started, indoor air enters from the air inlet, dust, bacteria and viruses are effectively intercepted on the air inlet surface of the filter screen when dirty air passes through the filter screen, fresh air purified by the filter screen is discharged into a room through the air outlet on the shell, and the bacteria and the viruses intercepted on the air inlet surface of the filter screen are killed under the irradiation of ultraviolet rays for a long time; the invention intercepts and adsorbs bacteria, viruses and other pollution particles through the filter screen, and then uses the ultraviolet lamp to irradiate the intercepting and adsorbing surface of the filter screen, thereby effectively killing the bacteria and viruses adsorbed on the filter screen in the environment, greatly improving the disinfection efficiency, solving the problem of insufficient sterilization efficiency without relying on large air volume and high-intensity ultraviolet lamps, further reducing the power consumption and reducing the noise of the whole machine. Therefore, the air sterilizer has the characteristics of small volume, low power consumption, low noise, high sterilization efficiency and the like.
Preferably, the ultraviolet lamp is installed inside the housing between the air inlet and the filter screen.
Preferably, the ultraviolet light of the ultraviolet lamp can uniformly and completely irradiate the blocking section of the filter screen.
Preferably, the power of the ultraviolet lamp is less than or equal to 10 w.
Preferably, the fan is installed inside the housing between the air outlet and the filter screen.
Preferably, the noise of the fan is less than or equal to 42dB (sound pressure level), and the power is less than or equal to 10 w.
Preferably, the fan fixing device further comprises a fan fixing plate, the fan is installed on the fan fixing plate, and the fan fixing plate is fixed inside the shell.
Preferably, the housing comprises a panel, a main body and a rear plate, the main body is a cavity structure with two hollow ends, the panel is covered at one end of the main body, and the rear plate is covered at the other end of the main body.
Preferably, the volume of the shell is less than or equal to 0.006m3。
Preferably, the rear plate is provided with an air inlet.
Preferably, the inner side surface of the back plate is provided with a fixing device for mounting the ultraviolet lamp.
Preferably, still include the filter screen apron, the casing has the opening that is used for changing the filter screen, and the connection that the filter screen apron can be dismantled is at the opening part. The filter screen apron is convenient for change the filter screen on the one hand, when covering tightly, can compress tightly the filter screen to a certain extent.
Preferably, the filter screen is a filter screen of H11 grade, and a high-efficiency HEPA filter screen of H11 higher grade is further selected.
The invention has the advantages that:
1. the filter screen is used for intercepting and adsorbing bacteria, viruses and other pollution particles, and the ultraviolet lamp is used for irradiating the intercepting and adsorbing surface of the filter screen, so that the equipment can effectively kill the bacteria and viruses adsorbed on the filter screen in the environment, and the sterilization and disinfection efficiency is greatly improved; the mechanism that the existing ultraviolet air sterilizer directly irradiates air is changed, the number of air circulation times is greatly reduced, and then the power consumption, the noise and the volume are reduced, and the sterilization efficiency is increased.
2. The problem that an existing air purifier is short of an effective disinfection device, bacteria and viruses deposited on a filter screen are not killed in time, and even secondary pollution is caused is solved.
3. The ultraviolet air sterilizer has the characteristics of high-efficiency sterilization, low power consumption, low noise and small volume, has the function of efficiently purifying particulate pollution in the air, and is suitable for wider application scenes.
4. The connection that makes ultraviolet lamp can dismantle is convenient for change, and ultraviolet lamp symmetrical arrangement makes light more even.
5. The filter screen apron is convenient for change the filter screen on the one hand, when covering tightly, can compress tightly the filter screen to a certain extent.
Drawings
FIG. 1 is an exploded schematic view of an air sterilizer according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the air sterilizer;
fig. 3 is a cross-sectional view of fig. 2.
Reference numbers in the figures: the device comprises a shell 1, a panel 11, a main body 12, a rear plate 13, a buckle 131, a fan 2, a filter screen 3, an ultraviolet lamp 4, a fan fixing plate 5 and a filter screen cover plate 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, combine fig. 2, fig. 3 shows, an air sterilizing machine, including casing 1, fan 2, filter screen 3, ultraviolet lamp 4, the air intake has on casing 1, the air outlet, fan 2 installs inside casing 1 near air outlet department, ultraviolet lamp 4 installs inside casing 1 near air intake department, filter screen 3 installs between fan 2 and ultraviolet lamp 4, filter screen 3 and 1 inner wall of casing combine closely, in order to realize filtering completely, avoid the incomplete problem of degerming.
As shown in fig. 3, in the present embodiment, the housing 1 includes a front plate 11, a main body 12, and a rear plate 13, the main body 12 is a rectangular cavity structure with two hollow ends, the front plate 11 is covered on the left end of the main body by screws, and the rear plate 13 is covered on the right end of the main body by screws.
The panel 11 is provided with a button assembly for switching and adjusting the lamp, which can be realized by the prior art;
the top end of the main body 12 is provided with an air outlet in a fence format, the rear plate 13 is provided with an air inlet, and the air outlet is in a fan-shaped fence format; so that the air inlet direction of the fan 2 is vertical to the air outlet direction.
In addition, the air outlet can be arranged on the panel 11 according to the requirement, the forms of the air inlet and the air outlet are not limited to fence grids, and can be honeycomb type or shutter type, and the ultraviolet rays of the rear plate can be shielded by using the wall surface, the desktop, the ground or the ceiling.
In this embodiment, the sterilization effect is good, so that the volume of the housing 1 is reduced, and the volume of the housing 1 is less than or equal to 0.006m3(ii) a The noise of the fan 2 is less than or equal to 42dB (sound pressure level), and the power is less than or equal to 10 w; the power of the ultraviolet lamp 4 is 10w or less.
In this embodiment, the air sterilizer further includes a fan fixing plate 5, the fan 2 is mounted on the fan fixing plate 5 through screws, the fan fixing plate 5 is fixed on the main body 12 through screws, and the fan fixing plate 5 is of a grid structure, so that weight reduction can be achieved.
After the fan 2 and the ultraviolet lamp 4 are started, indoor air enters from the air inlet, when dirty air passes through the filter screen 3, dust, bacteria and viruses are effectively intercepted on the air inlet surface (the right side surface in fig. 3) of the filter screen 3, fresh air purified by the filter screen 3 passes through the air outlet on the shell 1 and is discharged into a room, and the bacteria and the viruses intercepted on the air inlet surface of the filter screen 3 are killed under the irradiation of ultraviolet rays at normal time;
in the embodiment, bacteria, viruses and other pollution particles are intercepted and adsorbed by the filter screen 3, and then the ultraviolet lamp 4 is used for irradiating the intercepting and adsorbing surface of the filter screen 3, so that the equipment not only can filter dust in the environment, but also can effectively kill the bacteria and viruses adsorbed on the filter screen 3 in the environment, the sterilization and disinfection efficiency is greatly improved, the problem of insufficient sterilization efficiency is solved without large air volume and a high-strength ultraviolet lamp, the power consumption is reduced, and the noise of the whole machine is reduced; the filter screen 3 is prevented from becoming a secondary pollution source, and compared with an ultraviolet lamp placed in flowing wind, the novel air purifier has the advantages of low power consumption, low noise, small volume and high efficiency.
Example two:
as shown in fig. 1, on the basis of the first embodiment, a fixing device for installing and clamping the ultraviolet lamp 4 is arranged inside the rear plate 13, and the fixing device is a buckle 131, so that the ultraviolet lamp 4 can be detachably connected, and is convenient to replace.
The arrangement of the ultraviolet lamps 4 is required to meet the requirements of uniform light, complete coverage and no dead angle, and two ultraviolet lamps 4 are arranged in the embodiment and are respectively vertically arranged on two sides of the air inlet. The number and intensity of the ultraviolet lamps can be increased or decreased according to the requirements of sterilization intensity and the like by the skilled person.
Referring to fig. 3, four buckles 131 are divided into two groups, and the buckles 131 are fastened to two ends of the ultraviolet lamp 4. The buckle 131 is an arc structure having a diameter slightly smaller than the diameter of the ultraviolet lamp 4 and a certain elasticity.
The fixing device in this embodiment may be other devices capable of mounting the ultraviolet lamp.
In addition, the ultraviolet lamp 4 should be separated from the blower 2 and the control circuit.
Example three:
as shown in fig. 1, the top end of the main body 12 further includes a filter screen cover plate 6, the filter screen cover plate 6 is located on the right side of the air outlet and above the filter screen 3, an opening for replacing the filter screen 3 is formed in the top surface of the main body 12, the filter screen cover plate 6 can be detachably connected to the opening, the connecting mode can be specifically detached, and the filter screen cover plate 6 can be connected with the main body 12 through screws or can be clamped and connected.
The use of filter screen apron 6 is convenient for change filter screen 3 on the one hand, during the change, opens filter screen apron 6, and the filter screen 3 that will change is taken out to place new filter screen 3, close filter screen apron 6 lid again can, can also be equipped with some archs in filter screen apron 6's bottom simultaneously, make when covering tightly, can compress tightly the filter screen to a certain extent.
In the above embodiment, the filter screen is H11 and higher grade filter screen, and further high-efficient HEPA filter screen of chooseing for use.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113396.6A CN111174349A (en) | 2020-02-24 | 2020-02-24 | an air sterilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010113396.6A CN111174349A (en) | 2020-02-24 | 2020-02-24 | an air sterilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111174349A true CN111174349A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010113396.6A Pending CN111174349A (en) | 2020-02-24 | 2020-02-24 | an air sterilizer |
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| CN (1) | CN111174349A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536632A (en) * | 2020-06-09 | 2020-08-14 | 宁波爱科特环境电器有限公司 | Air sterilizer |
| CN111829090A (en) * | 2020-07-03 | 2020-10-27 | 中山市赛恩电器科技有限公司 | Intercept and disinfect air sterilizer |
| CN112128883A (en) * | 2020-10-16 | 2020-12-25 | 珠海格力电器股份有限公司 | Air purification equipment |
| CN113983612A (en) * | 2020-07-27 | 2022-01-28 | Lg电子株式会社 | Portable Air Purifier |
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| CN102052710A (en) * | 2010-12-10 | 2011-05-11 | 邯郸派瑞电器有限公司 | Air disinfection machine for dust removal and disinfection |
| CN204593637U (en) * | 2015-04-23 | 2015-08-26 | 郑州中斯达环境科技有限公司 | Indoor air disinfection purifier |
| CN206330220U (en) * | 2016-12-21 | 2017-07-14 | 天津圣弘业环保科技有限公司 | Air purifier |
| CN108534259A (en) * | 2018-07-13 | 2018-09-14 | 广东爱美信电器有限公司 | Air purifier |
| CN211953080U (en) * | 2020-02-24 | 2020-11-17 | 合肥青空净化科技有限公司 | Air sterilizer |
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2020
- 2020-02-24 CN CN202010113396.6A patent/CN111174349A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052710A (en) * | 2010-12-10 | 2011-05-11 | 邯郸派瑞电器有限公司 | Air disinfection machine for dust removal and disinfection |
| CN204593637U (en) * | 2015-04-23 | 2015-08-26 | 郑州中斯达环境科技有限公司 | Indoor air disinfection purifier |
| CN206330220U (en) * | 2016-12-21 | 2017-07-14 | 天津圣弘业环保科技有限公司 | Air purifier |
| CN108534259A (en) * | 2018-07-13 | 2018-09-14 | 广东爱美信电器有限公司 | Air purifier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536632A (en) * | 2020-06-09 | 2020-08-14 | 宁波爱科特环境电器有限公司 | Air sterilizer |
| CN111536632B (en) * | 2020-06-09 | 2022-07-08 | 宁波爱科特环境电器有限公司 | Air sterilizer |
| CN111829090A (en) * | 2020-07-03 | 2020-10-27 | 中山市赛恩电器科技有限公司 | Intercept and disinfect air sterilizer |
| CN113983612A (en) * | 2020-07-27 | 2022-01-28 | Lg电子株式会社 | Portable Air Purifier |
| US12546494B2 (en) | 2020-07-27 | 2026-02-10 | Lg Electronics Inc. | Portable air purifier |
| CN112128883A (en) * | 2020-10-16 | 2020-12-25 | 珠海格力电器股份有限公司 | Air purification equipment |
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Application publication date: 20200519 |
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