CN214172495U

CN214172495U - Air purifier

Info

Publication number: CN214172495U
Application number: CN202022946396.2U
Authority: CN
Inventors: 乔乾; 何梁
Original assignee: Sichuan Energy Internet Research Institute EIRI Tsinghua University
Current assignee: Sichuan Energy Internet Research Institute EIRI Tsinghua University
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-09-10
Anticipated expiration: 2030-12-07

Abstract

The embodiment of the utility model provides an air purifier, which relates to the technical field of ultraviolet sterilization. The air purifier includes a casing, a fan, a radio frequency source and a radio frequency plasma light source. The two ends of the casing are respectively provided with an air inlet and an air outlet. The fan is installed in the casing, and the fan is used to blow air from the air inlet to the air outlet. The source and the radio frequency plasma light source are installed in the housing and between the air inlet and the air outlet. The radio frequency plasma light source is connected to the radio frequency source. The radio frequency source is used to provide radio frequency energy to the radio frequency plasma light source, and the radio frequency plasma light source is used to focus the radio frequency energy. The area is ionized and emits UV light, which is used to sterilize the air passing through. The air purifier can integrate the radio frequency plasma ultraviolet light source into the equipment, and pump the air into the equipment for disinfection and sterilization treatment, so that the ultraviolet rays cannot be irradiated outside the equipment and will not have a negative impact on the health of users.

Description

Air purifier

Technical Field

The utility model relates to an ultraviolet sterilization technical field particularly, relates to an air purifier.

Background

At present, lamps using low-pressure mercury ultraviolet light sources are mostly adopted in the market for sterilization, and a small part of lamps uses ultraviolet LED lamps for sterilization. These UV germicidal lamps do not avoid the normal tissues of the human body and any cells exposed to radiation in this UV band are damaged, including the eyes and skin of the human. The skin of a human body can generate symptoms of reddening, pruritus, allergic papule and the like when being radiated for a short time; prolonged irradiation can cause severe damage to skin tissue, and high doses of radiation can even cause skin cancer. In the aspect of eye injury, short-time radiation can cause ophthalmia, and symptoms such as red and swollen eyes, dryness and tear flow appear, and certain damage can be caused to vision in severe cases. Therefore, when the lamp is used, the lamp needs to be used in an unmanned place, and the application of the ultraviolet lamp for sterilization and disinfection is limited.

Therefore, the air purifier is designed, a radio frequency plasma ultraviolet light source can be integrated into equipment, air is pumped into the equipment for disinfection and sterilization, ultraviolet rays cannot irradiate the outside of the equipment, negative influence on the health of a user cannot be caused, and the technical problem which needs to be solved urgently at present is solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an air purifier, it can be integrated to the equipment with radio frequency plasma ultraviolet source in to take out the air and carry out disinfection and isolation in the equipment and handle, make the ultraviolet ray not shine outside the equipment, can not cause negative effects to user's health.

The embodiment of the utility model is realized like this:

in a first aspect, the utility model provides an air purifier, air purifier includes:

the air conditioner comprises a shell, wherein an air inlet and an air outlet are respectively formed in two ends of the shell;

the fan is arranged in the shell and used for blowing air from the air inlet to the air outlet;

the radio frequency source is arranged in the shell and is positioned between the air inlet and the air outlet;

the radio frequency plasma light source is arranged in the shell and located between the air inlet and the air outlet, the radio frequency plasma light source is connected with the radio frequency source, the radio frequency source is used for providing radio frequency energy for the radio frequency plasma light source, the radio frequency plasma light source is used for ionizing in a focusing area of the radio frequency energy and emitting ultraviolet light, and the ultraviolet light is used for disinfecting and sterilizing air passing through.

In an alternative embodiment, the housing has a cylindrical structure, the air inlet is formed on an outer circumferential surface of the cylindrical structure, and the air outlet is formed on an end surface of the cylindrical structure.

In an alternative embodiment, the air purifier further comprises:

the filter screen is arranged in the shell and completely covers the air inlet.

In an alternative embodiment, the filter screen is of an annular structure, the outer peripheral surface of the annular structure covers the air inlet, and the center line of the annular structure is overlapped with the center line of the shell.

In an alternative embodiment, the inner wall of the housing has an ultraviolet reflecting mirror surface, and the ultraviolet reflecting mirror surface is located between the air inlet and the air outlet and is arranged around the radio frequency plasma light source.

In an alternative embodiment, a support plate for supporting the rf plasma light source is disposed on a side of the casing close to the air outlet, the ultraviolet reflector has a circumferential surface, and two ends of the circumferential surface respectively extend to the air inlet and the support plate.

In an alternative embodiment, a radio frequency plasma light source includes:

the focalizer is connected with the radio frequency source;

and the plasma lamp bead is arranged in the focusing area of the focuser.

In an alternative embodiment, the rf plasma light source further comprises:

and the quartz glass cover is covered on the plasma lamp bead.

In an alternative embodiment, the rf source is connected to the focuser by an rf coaxial connector.

In an alternative embodiment, the air purifier further comprises:

and the heat dissipation sealing cover is arranged in the shell and covers the radio frequency source.

The embodiment of the utility model provides an air purifier's beneficial effect includes:

1. the air purifier sucks indoor air into the interior, disinfects and sterilizes by using ultraviolet light emitted by the radio frequency plasma light source, and then discharges the air to play a role in purifying the indoor air;

2. the radio frequency plasma light source is arranged in the shell, ultraviolet light emitted by the radio frequency plasma light source is sealed in the shell and cannot irradiate the outside of the shell, negative effects on the health of a user are avoided, the user cannot be irradiated by the ultraviolet light of the air purifier even if the user is beside the equipment, and the air purifier does not need to be closed;

3. the radio frequency plasma light source and the radio frequency source are arranged in the shell and are positioned between the air inlet and the air outlet, and in the process of air circulation, air can be purified and simultaneously can be cooled without additionally arranging a cooling device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an air purifier provided by an embodiment of the present invention;

fig. 2 is the embodiment of the utility model provides an air purifier's complete section structure schematic diagram.

Icon: 100-an air purifier; 110-a housing; 111-air inlet; 112-air outlet; 113-ultraviolet mirror surface; 120-a fan; 130-a radio frequency source; 140-radio frequency plasma light source; 141-a focuser; 142-a plasma bead; 143-quartz glass cover; 150-radio frequency coaxial connectors; 160-a filter screen; 170-heat dissipation sealing cover; 180-support plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The existing ultraviolet sterilizing lamp cannot avoid the use of users, and human tissues including human eyes and skin can be damaged under the radiation of the ultraviolet band. Therefore, the existing ultraviolet sterilizing lamp is mostly used in unmanned places, and the application of the ultraviolet sterilizing lamp is limited. The embodiment provides an air purifier, can be with radio frequency plasma ultraviolet light source integrated to the equipment in to take out the air and carry out disinfection and sterilization in the equipment and handle, make the ultraviolet irradiation not outside the equipment, can not cause negative effects to user's health. The specific structure of the air purifier provided by the embodiment is as follows.

Referring to fig. 1 and 2, the air purifier 100 of the present embodiment includes a housing 110, a fan 120, an rf source 130, an rf plasma light source 140, a filter screen 160, and a heat dissipation sealing cover 170.

Referring to fig. 1, an air inlet 111 and an air outlet 112 are respectively formed at two ends of the housing 110, specifically, the housing 110 is a cylindrical structure, the air inlet 111 is formed on an outer circumferential surface of the cylindrical structure, and the air outlet 112 is formed on an end surface of the cylindrical structure.

In other embodiments, the housing 110 may also have a prismatic structure, such as a rectangular parallelepiped, a hexagonal prism, or the like.

Referring to fig. 2, the filter screen 160 is installed in the housing 110, and the filter screen 160 completely covers the air inlet 111. Specifically, the filter screen 160 has an annular structure, the outer circumferential surface of the annular structure covers the air inlet 111, and the center line of the annular structure coincides with the center line of the housing 110.

The inner wall of the housing 110 has an ultraviolet reflecting mirror 113, the ultraviolet reflecting mirror 113 is made of a material having a high reflectivity to ultraviolet rays, and the ultraviolet reflecting mirror 113 is located between the air inlet 111 and the air outlet 112 and is disposed around the rf plasma light source 140. A supporting plate 180 for supporting the rf plasma light source 140 is disposed at one side of the casing 110 close to the air outlet 112, the ultraviolet reflecting mirror surface 113 is a circumferential surface, two ends of the circumferential surface respectively extend to the air inlet 111 and the supporting plate 180, that is, the ultraviolet reflecting mirror surface 113 surrounds to form a reflecting cavity, an upper end of the reflecting cavity extends to the supporting plate 180, and a lower end of the reflecting cavity extends to the air inlet 111. Ultraviolet rays emitted by the radio frequency plasma light source 140 are reflected for multiple times in the reflecting cavity, so that the intensity of the ultraviolet rays in the reflecting cavity is improved, and bacteria and viruses carried in air are killed under the irradiation of high-intensity ultraviolet rays in the reflecting cavity.

In other embodiments, the ultraviolet reflecting mirror surface 113 may have other shapes, such as a polygon, an ellipse, and the like.

The radio frequency source 130 and the radio frequency plasma light source 140 are installed in the housing 110 and located between the air inlet 111 and the air outlet 112, the radio frequency plasma light source 140 is connected to the radio frequency source 130, the radio frequency source 130 is used for providing radio frequency energy to the radio frequency plasma light source 140, the radio frequency plasma light source 140 is used for ionizing in a focus area of the radio frequency energy and emitting ultraviolet light, and the ultraviolet light is used for sterilizing passing air.

Specifically, the rf plasma light source 140 includes a focuser 141, a plasma lamp 142 and a quartz glass cover 143, wherein the focuser 141 and the rf source 130 are connected by an rf coaxial connector 150. The plasma lamp 142 is installed in a focusing region of the focuser 141, that is, the rf source 130, the rf coaxial connector 150, the focuser 141, and the plasma lamp 142 are sequentially connected from top to bottom. A quartz glass cover 143 is provided over the plasma lamp bead 142. Thus, the RF source 130 inputs RF energy into the RF plasma source 140 through the RF coaxial connector 150, and the RF plasma source 140 emits broad spectrum UV light in the range of 200nm to 360 nm. The quartz glass cover 143 is made of a quartz material having a high ultraviolet transmittance, and can efficiently transmit ultraviolet rays.

The heat dissipation sealing cover 170 is located in the housing 110, the heat dissipation sealing cover 170 is fixed on the support plate 180 and covers the rf source 130, and specifically, the heat dissipation sealing cover 170 and the quartz glass cover 143 cover each other to enclose the rf source 130 and the rf plasma light source 140. The heat dissipation sealing cover 170 may be made of aluminum, which not only has a dustproof and waterproof sealing effect, but also can dissipate heat from the rf source 130 and the rf plasma light source 140 inside.

The fan 120 is installed in the housing 110 and located at an end near the air outlet 112, and the fan 120 is used for blowing air from the air inlet 111 to the air outlet 112.

In other embodiments, the fan 120 may be located at other positions, such as an end of the housing 110 near the inlet 111 or between the inlet 111 and the outlet 112, as long as it can draw in air and discharge air to circulate the air.

The working principle of the air purifier 100 provided by the embodiment is as follows:

first, the rf source 130 converts the dc power or the ac power into rf energy having a specific frequency, and couples and feeds the rf energy into the focuser 141 through the rf coaxial connector 150, the focuser 141 focuses the rf energy and concentrates the focused rf energy in a focusing region, and the filler in the plasma bead 142 is ionized and emits uv light. The ultraviolet ray has short wavelength and high energy, and can destroy the molecular structure of DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) in the cells of microorganisms (such as pathogens of bacteria, viruses, spores and the like) in a short time, so that the microorganisms cannot regenerate and lose the self-replication capacity, thereby achieving the effects of sterilization and disinfection. Moreover, compared with the low-pressure ultraviolet mercury lamp, the intensity of the radio-frequency plasma light source 140 under the same power is improved by six times and is also fifteen times of that of the ultraviolet LED, and meanwhile, the size of the radio-frequency plasma light source 140 is small and is only one twentieth of that of the low-pressure ultraviolet mercury lamp.

Secondly, fan 120 starts, the air gets into in casing 110 from air intake 111, and pass through filter screen 160 in proper order and filter the large particulate matter such as dust in the air, long-term cleanness in the assurance equipment, the air passes through the reflection chamber again, backup pad 180 and fan 120, and blow out from air outlet 112, simultaneously, casing 110 is inside to be full of the ultraviolet ray that radio frequency plasma light source 140 sent, especially in the reflection chamber, the air reaches disinfection's effect through the irradiation of ultraviolet ray, the air through disinfection then discharges to indoor through air outlet 112.

In addition, when the air flows through the heat dissipation sealing cover 170, the air can also take away the heat on the heat dissipation sealing cover 170, so as to achieve the heat dissipation effect on the radio frequency source 130 in the heat dissipation sealing cover 170.

The present embodiment provides the air purifier 100 with beneficial effects including:

1. the air purifier 100 draws indoor air into the interior, sterilizes and sterilizes the air by using ultraviolet light emitted from the radio frequency plasma light source 140, and discharges the air to play a role in purifying the indoor air;

2. the radio frequency plasma light source 140 is installed in the casing 110, ultraviolet light emitted by the radio frequency plasma light source 140 is sealed in the casing 110, cannot irradiate the outside of the casing 110, cannot cause negative influence on the health of a user, cannot be irradiated by the ultraviolet light of the air purifier 100 even if the user is beside the device, and does not need to close the air purifier 100;

3. the radio frequency plasma light source 140 and the radio frequency source 130 are arranged in the shell 110 and are positioned between the air inlet 111 and the air outlet 112, and in the process of air circulation, air is purified, and meanwhile, the radio frequency plasma light source 140 and the radio frequency source 130 can be radiated without additionally installing a radiating device;

4. the filter screen 160 is arranged at the air inlet 111, so that the interior of the shell 110 is kept clean, and the service life of each part in the shell 110 is prolonged;

5. the radio frequency plasma light source 140 is arranged inside the heat dissipation sealing cover 170, and the quartz glass cover 143 covers the plasma lamp bead 142, so that impurities in the air are prevented from flying into the light source to affect the service life.

Furthermore, the utility model discloses the core lies in, has solved traditional artificial light source (LED, low pressure mercury lamp etc.) intensity through adopting radio frequency plasma ultraviolet light source and has crossed low, lead to the problem of the efficiency of disinfecting on the low side, the sterilization time overlength. Meanwhile, the rf plasma light source 140 has large power and small size, and can be integrated into a small device, so that the whole device has small size. Most of the traditional ultraviolet sterilization equipment directly irradiates ultraviolet rays to occasions, and needs to be closed when people exist. The radio frequency plasma ultraviolet light source is small in size and integrated into the equipment, ultraviolet light cannot irradiate the equipment, and air circulation sterilization is adopted, so that the equipment can be used in occasions where people exist, and people are not worried about the damage of ultraviolet light to people.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An air purifier, characterized in that, the air purifier comprises:

a casing (110), the two ends of the casing (110) are respectively provided with an air inlet (111) and an air outlet (112);

a fan (120), installed in the casing (110), the fan (120) is used for blowing air from the air inlet (111) to the air outlet (112);

a radio frequency source (130) installed in the housing (110) and located between the air inlet (111) and the air outlet (112);

A radio frequency plasma light source (140), installed in the housing (110) and located between the air inlet (111) and the air outlet (112), the radio frequency plasma light source (140) and the radio frequency A source (130) is connected, and the radio frequency source (130) is used to provide radio frequency energy to the radio frequency plasma light source (140), and the radio frequency plasma light source (140) is used to ionize and emit the radio frequency energy in the focal region of the radio frequency energy. Ultraviolet light, which is used to sterilize the passing air.

2. The air purifier according to claim 1, wherein the housing (110) is a cylindrical structure, the air inlet (111) is opened on the outer peripheral surface of the cylindrical structure, and the The air outlet (112) is opened on the end face of the cylindrical structure.

3. The air purifier according to claim 2, wherein the air purifier further comprises:

A filter screen (160) is installed in the casing (110), and the filter screen (160) completely covers the air inlet (111).

4. The air purifier according to claim 3, characterized in that, the filter screen (160) is an annular structure, and the outer peripheral surface of the annular structure covers the air inlet (111), and the The centerline of the annular structure coincides with the centerline of the casing (110).

5. The air purifier according to claim 1, wherein the inner wall of the housing (110) has an ultraviolet reflecting mirror surface (113), and the ultraviolet reflecting mirror surface (113) is located at the air inlet (111) It is arranged between the air outlet (112) and around the radio frequency plasma light source (140).

6 . The air purifier according to claim 5 , wherein a support plate for supporting the radio frequency plasma light source ( 140 ) is provided on the side of the casing ( 110 ) close to the air outlet ( 112 ). 7 . (180), the ultraviolet reflecting mirror surface (113) is a circumferential surface, and two ends of the circumferential surface respectively extend to the air inlet (111) and the support plate (180).

7. The air purifier according to claim 1, wherein the radio frequency plasma light source (140) comprises:

a focuser (141), connected to the radio frequency source (130);

The plasma lamp beads (142) are installed in the focusing area of the concentrator (141).

8. The air purifier according to claim 7, wherein the radio frequency plasma light source (140) further comprises:

A quartz glass cover (143) is provided on the plasma lamp beads (142).

9 . The air purifier according to claim 7 , wherein the radio frequency source ( 130 ) and the concentrator ( 141 ) are connected through a radio frequency coaxial connector ( 150 ). 10 .

10. The air purifier of claim 1, wherein the air purifier further comprises:

A heat dissipation sealing cover (170) is installed in the casing (110), and the cover is provided on the radio frequency source (130).