CN216716403U

CN216716403U - Air sterilizing device

Info

Publication number: CN216716403U
Application number: CN202120619468.4U
Authority: CN
Inventors: 赵逢安; 孔维益; 柳海泉; 岳刚; 贾洪涛; 庞玉博; 滕培坤; 朱保祥; 韩润虎; 陈海涛; 唐先双; 刘飞飞
Original assignee: Qingdao Haier Biomedical Co Ltd
Current assignee: Qingdao Haier Biomedical Co Ltd
Priority date: 2021-03-26
Filing date: 2021-03-26
Publication date: 2022-06-10
Anticipated expiration: 2031-03-26

Abstract

The utility model discloses an air sterilization device, comprising: the air conditioner comprises a shell, a fan and a fan, wherein an air inlet and an air outlet are formed on the shell, and an airflow passage communicated with the air inlet and the air outlet is arranged in the shell; a fan disposed on the airflow path; a high voltage power supply; the device comprises a first electrode plate and a second electrode plate which are respectively and electrically connected with a high-voltage power supply, wherein the first electrode plate and the second electrode plate are opposite and arranged on an airflow passage, a plurality of discharge needles are arranged on the second electrode plate, and the free ends of the discharge needles respectively point to the first electrode plate; when the high-voltage power supply supplies power, a discharge space is formed between the first electrode plate and the second electrode plate. The utility model can solve the problems of low sterilization effect, poor safety and frequent replacement of the filter element of the air filter in the prior art, and realizes high-efficiency and safe sterilization.

Description

Air sterilizing device

Technical Field

The utility model relates to the technical field of air purification, in particular to an air sterilization device.

Background

In order to better kill bacteria in the air, some air filters are available on the market today which sterilize the air by means of chemicals or ultraviolet light; however, the sterilization by chemical drugs is easy to cause secondary pollution due to chemical residues, and the ultraviolet light is used to kill bacteria passing through the air filter, so that personnel need to evacuate during working, and the sterilization efficiency of the ultraviolet light is low, and the air flow rate inside the air filter is high, so that the sterilization effect is not ideal.

Still other conventional disinfection devices are passive disinfection devices that require frequent filter element replacement and only adsorb aerosol of bacteria and viruses to the filter without killing the bacteria and viruses, which presents a significant risk and relatively high replacement cost.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

The utility model aims to provide an air sterilization device, which solves the problems of low sterilization effect, poor safety and frequent replacement of filter elements of an air filter in the prior art, and realizes efficient and safe sterilization.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

an air sterilizer, comprising:

the air conditioner comprises a shell, a fan and a fan, wherein an air inlet and an air outlet are formed on the shell, and an airflow passage communicated with the air inlet and the air outlet is arranged in the shell;

a fan disposed on the air flow path;

a high voltage power supply;

the first electrode plate and the second electrode plate are respectively electrically connected with the high-voltage power supply, the first electrode plate is opposite to the second electrode plate and is arranged on the air flow passage, a plurality of discharge needles are arranged on the second electrode plate, and the free ends of the discharge needles respectively point to the first electrode plate;

when the high-voltage power supply supplies power, a discharge space is formed between the first electrode plate and the second electrode plate.

In this application, the second electrode plate is a circuit board, which interconnects the discharge needles through conductive traces.

In the present application, the first electrode plate is a metal plate having an air hole;

and a plurality of ventilation meshes for air flow to pass through are formed on the second electrode plate.

In the present application, the first electrode plate is foamed nickel or foamed copper.

In the present application, the air sterilizing apparatus includes:

the inner shell is positioned in the shell and is cylindrical, the first electrode plate and the second electrode plate are respectively arranged at the upper end and the lower end inside the inner shell, and the air outlet end of the fan is opposite to the second electrode plate.

In the present application, the housing includes:

the top of the upper cover body is provided with the air outlet;

the lower shell is provided with the air inlet, and the fan is arranged in the lower shell and fixedly connected with the part, positioned in the lower shell, of the inner shell;

when the upper cover body is matched with the lower cover body, the upper part of the inner shell extends into the upper cover body, and the first pole plate is opposite to the air outlet.

In the present application, the lower case is bowl-shaped.

In this application, the air intake is many arc openings, and each arc opening is followed respectively the casing bottom upwards radiates the extension down.

In the application, the area of the first electrode plate is larger than or equal to the whole arrangement area of the discharge needles on the second electrode plate.

In this application, the air sterilizer further comprises a support frame for supporting the housing.

The application relates to an air sterilizing equipment compares prior art, has following advantage and beneficial effect:

(1) when the first electrode plate and the second electrode plate are connected with a high-voltage power supply, a high-voltage electric field is formed between the tip of each discharge needle and the first electrode plate, and the discharge needles discharge electricity to the first electrode plate through air to generate a large amount of plasma, so that bacteria can be killed efficiently, and efficient sterilization is realized;

(2) the sterilization mode belongs to an electronic sterilization mode, can be repeatedly utilized, avoids frequent replacement by a user, has high safety and reduces the cost;

(3) the fan is arranged on the airflow path, the fan actively captures the outside air, the outside air enters the shell through the air inlet, the entering outside air is sterilized, and the sterilized air is discharged through the air outlet, so that active and effective sterilization is realized.

Other features and advantages of the present invention will become more apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic diagram of an embodiment of an air sterilizer according to the present invention;

FIG. 2 is a partially exploded view of an embodiment of the air sterilizer proposed in the present invention;

FIG. 3 is a front view of an embodiment of the air sterilizer proposed in the present invention, in which an upper cover is shown;

FIG. 4 is a cross-sectional view taken along the line A-A in FIG. 3, with the support leg not shown;

fig. 5 is a structural view of a lower case in an embodiment of the air sterilizer of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inner", "outer", "upper", "lower", "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The present application relates to an air sterilization device 100, which employs an electronic sterilization method to realize efficient active sterilization.

Referring to fig. 1 to 5, the air sterilizer 100 includes a housing 110, a first electrode plate 120, a second electrode plate 130, a blower 140, and a high voltage power supply (not shown).

An air inlet and an air outlet are formed on the housing 110, and an airflow path communicating the air inlet and the air outlet is formed in the housing 110.

The first electrode plate 120 and the second electrode plate 130 are electrically connected to a high voltage power supply, respectively.

The high voltage power supply may be provided as follows.

An AC to DC module (not shown) is used to convert the external 220V AC to 12V DC and the 12V DC to high voltage via a high voltage module (not shown).

The high-voltage power supply can also be a high-frequency single-pulse power supply, the duty ratio of the power supply is less than 50%, and the pulse peak voltage is 2kV to 10 kV.

When the high-voltage power supply is started and the pulse is at the peak value, the voltage difference is maximum, so that the air in the reaction area is quickly ionized; when the pulse is at the flat peak, the power supply does not work; through the frequency selection of the pulse voltage, on the basis of ionizing air particles in the ion field area, the voltage working time is reduced, and the service life of the power supply is prolonged.

The first electrode plate 120 and the second electrode plate 130 are arranged in parallel, and a plurality of discharge needles 131 with equal length are arranged on the second electrode plate 130.

Referring to fig. 4, the ends of the discharge needles (only labeled as the discharge needle 131) are fixedly connected to the top surface of the second electrode plate 130 facing the first electrode plate 120; and the free end of each discharge needle 131 points to the bottom surface of the first electrode plate 120 facing the second electrode plate 130 and has a certain distance with the bottom surface, so as to leave a corona discharge gap between the free end of the discharge needle 131 and the first electrode plate 120.

The second electrode plate 130 may be made of a circuit board (PCB), and the ends of the discharge needles 131 are fixedly connected to the circuit board and electrically connected to each other through conductive traces.

The second electrode plate 130 may be made of a metal plate to connect and conduct the discharge needles 131.

Each of the discharge needles 131 may be a tungsten needle, a gold-plated stainless steel needle, a silver needle, or the like, and the length thereof may be selected according to actual circumstances.

The discharge needles 131 may be uniformly arranged on the second electrode plate 130, so that the discharge needles 131 can uniformly discharge toward the first electrode plate 120, the uniformity of ion field formation is improved, and the sterilization effect is enhanced.

The area of the first electrode plate 120 may be greater than or equal to the entire arrangement area of the discharge needles 131 on the second electrode plate 130, so that the discharge needles 131 can all discharge electricity to the first electrode plate 120.

The first electrode plate 120 and the second electrode plate 130 are disposed on the airflow path, and the first electrode plate 120 is a metal plate having ventilation holes, and the second electrode plate 130 is formed with ventilation holes (not shown) through which the airflow is supplied.

The fan 140 is also disposed on the airflow path, and when the fan 140 is in operation, the external air is actively sucked into the housing 110 through the air inlet and then enters between the two electrode plates through the ventilation mesh holes on the second electrode plate 130.

When the first electrode plate 120 and the second electrode plate 130 are connected to a high voltage power supply, the discharge needles 131 on the second electrode plate 130 discharge electricity to the first electrode plate 120, so as to ionize air entering between the two electrode plates and kill bacteria in the air, and the sterilized air is discharged to the outside through the air holes and the air outlets on the first electrode plate 120 in sequence.

The material of the first electrode plate 120 may be one or more of stainless steel, copper, and aluminum alloy.

In the present application, the first electrode plate 120 may be nickel foam or copper foam.

The foam nickel or the foam copper has excellent electric conduction and heat conduction performance, basically has no harm to a human body, has a large amount of three-dimensional porous structures inside the material, and has better silencing and shock absorption effects.

Therefore, heat generated during the discharge of the discharge needles 131 toward the first electrode plate 120 can be well dissipated to the outside through the nickel foam or the copper foam; the three-dimensional porous structure in the plate structure can uniformly cover the whole flat plate structure, and the sterilized gas can be conveniently and rapidly discharged; the fan 140 pushes the airflow noise generated in the airflow channel to play a certain role in noise reduction after passing through the foam nickel or the foam net.

In order to sufficiently sterilize the air introduced into the housing 110, in the present application, referring to fig. 2 and 4, the air sterilization device 100 further includes an inner case 150 disposed inside the housing 110.

In the present application, the inner casing 150 has a cylindrical shape, i.e., the top and bottom of the inner casing 150 are vertically penetrated.

The first electrode plate 120 is disposed at an upper end inside the inner case 150, and the second electrode 130 plate is disposed at a lower end inside the inner case 150.

Specifically, a first stepped portion 151 is provided on an upper end circumferential inner wall inside the inner case 150, a second stepped portion 152 is provided on a lower end circumferential inner wall inside the inner case 150, the first electrode plate 120 is disposed on the first stepped portion 151, and the second electrode plate 130 is disposed on the second stepped portion 152, so that the integral arrangement of the first electrode plate 120, the second electrode plate 130, and the inner case 150 is realized.

The air channel formed by the portion of the inner casing 150 between the first electrode plate 120 and the second electrode plate 130 is the discharge region C.

With continued reference to fig. 4, the discharge region C is a region formed by the first electrode plate 120 sealing the top and the second electrode plate 130 sealing the bottom, with the periphery closed.

In the present application, the fan 140 is located in the casing 110, and the air outlet end of the fan 140 is opposite to the second electrode plate 130.

Specifically, the blower 140 may have an upper end fixed to a lower end of the inner casing 150 by a blower outer casing, and a lower end fixed to the first stud 112c inside the casing 110 by a screw by the blower outer casing.

In order to support the electric devices (such as the ac-dc module and the high voltage module) in the air sterilizer 100, in the present application, a support plate 160 is disposed at the lower portion of the housing 110, a through window (not shown) is disposed on the support plate 160 for the lower portion of the blower 140 to pass through, and a screw is screwed into the first stud 112c through a hole on the blower housing and a hole on the support plate 160, thereby fixing the blower 140 and the support plate 160.

Thus, the blower 140 is disposed below the second electrode plate 130, such that the air outlet end of the blower 140 is opposite to the second electrode plate 130.

In the present application, the fan 140 may be an axial flow fan that actively catches the external air and blows toward the second electrode plate 130.

The air entering the discharge area C through the second electrode plate 130 is enclosed in the discharge area C, and the bacteria therein are sufficiently damaged by ions in the ion field between the discharge of the second electrode plate 130 and the discharge of the first electrode plate 120, so that the purification degree of the discharged air is higher, and the sterilization effect is improved.

In the present application, referring to fig. 2 and 4, the case 110 is divided into an upper cover 111 and a lower case 12 fitted with the upper cover 111.

The fastening of the upper cover 111 and the lower cover 112 may be achieved by the following structure.

A locking block and a locking groove 112d which are matched with each other are arranged at the respective circumferential edges of the upper cover 111 and the lower shell 112, and a plurality of second studs 112b are arranged on the inner side of the circumferential side wall of the lower shell 112.

When the upper cover 111 is covered on the lower housing 112, the latch is engaged with the corresponding latch slot 112d and is screwed into the corresponding second stud 112b through a screw passing through an opening (not shown) on the upper cover 111, so as to fixedly connect the upper cover 111 and the lower housing 112, as shown in fig. 1.

Referring to fig. 1 and 2, an air outlet 111a is formed at the top of the upper cover 111.

Referring to fig. 2, 4 and 5, the air inlet 112c is formed on the lower case 12, and the blower 140 is located in the lower case 112.

The lower portion of the inner casing 150 is also located in the lower casing 112, and the upper portion extends out of the lower casing 112, and the blower 140 is fixedly connected with the lower portion of the inner casing 150, for example, by a flange at the bottommost end of the lower portion of the inner casing 150 and the blower casing are fixedly connected by screws.

When the upper cover 111 is covered on the lower case 112, the upper portion of the inner casing 150 extends into the upper cover 111, and the first electrode plate 120 is aligned with the air outlet 111 a.

Referring to fig. 1 and 2, the area of the air outlet 111a opened on the upper cover 111 is larger than the area of the first electrode plate 120, so that the sterilized air can be quickly released into the outside.

As described above, the lower end of the inner casing 150 is fixed to the inside of the lower casing 112 by the blower 140 (or the blower 140 and the bearing plate 160), and the upper end of the inner casing 150 is fixedly connected to the upper cover 111 to ensure the overall stability of the inner casing 150.

For example, referring to fig. 4, an outward flange 153 is formed at the circumferential edge of the uppermost end of the inner housing 150, and a hook (not shown) is provided at the top of the upper cover 111, so that when the upper cover 111 covers the upper housing 112 and the lower housing 112, the hook of the upper cover 111 is hooked at the flange 153, and the upper end of the inner housing 150 is fixedly connected to the upper cover 111 while the upper cover 111 is engaged with the lower housing 112.

Referring to fig. 2, the external structure of the upper cover 111 is a "convex" type, which may be formed by a plurality of separate parts, or may be formed integrally.

In this application, the upper cover 111 has an outlet net plate located at the top, and the outlet 111a is a hole on the outlet net plate.

Referring to fig. 4 and 5, in the present application, the lower shell, 112, is in the form of a "bowl".

The air inlet 112c is formed in the lower housing 112, and specifically, the number of the air inlets 112c is plural, each air inlet is an arc-shaped opening, each arc-shaped opening extends from the bottom of the lower housing 112 in an upward radial manner, and the design of the air inlets 112c satisfies the axial air suction of the fan 140, so that the external air can be actively collected to the maximum.

Referring to fig. 1 to 3, in order to facilitate the placement of the air sterilizer 100, the air sterilizer 100 further includes a support bracket 170, and the support bracket 170 is used for carrying the housing 110 (and the components inside the housing 110) as described above.

For example, the support bracket 170 may include a support plate 171, and three support legs 172 fixedly mounted on a bottom surface of the support plate 171.

The top surface of the support plate 171 may be provided with a plurality of grooves (not shown), and correspondingly, a portion of the lower housing 112 not provided with the air inlets 112c is provided with a plurality of protrusions (not shown).

When the protrusions are correspondingly inserted into the grooves, the housing 110 is placed on the supporting frame 170.

The triangular support legs 172 ensure the stability of the entire air sterilizer apparatus 100.

A plurality of screw holes (not shown) may also be formed in the support plate 171, and correspondingly, a plurality of thread grooves (not shown) are concavely formed in the portion of the lower housing 112 not provided with the air inlet 112c, inner threads are formed on the inner wall of the thread grooves, and screws are correspondingly screwed into the thread grooves through the screw holes, so as to integrally connect the support frame 170 and the housing 110.

The supporting frame can be designed into any shape and size according to actual needs, as long as the housing 110 can be placed conveniently.

The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. An air sterilizer, comprising:

a fan disposed on the airflow path;

a high voltage power supply;

2. An air sterilizer as claimed in claim 1,

the second electrode plate is a circuit board and is connected with the discharge needles through conducting wires.

3. The air sterilizer of claim 1,

the first electrode plate is a metal plate with air holes;

4. An air sterilizer as claimed in claim 3,

the first electrode plate is made of foamed nickel or foamed copper.

5. The air sterilizer of claim 1, wherein the air sterilizer comprises:

6. An air sterilizer as claimed in claim 5, wherein the housing comprises:

the top of the upper cover body is provided with the air outlet;

when the upper cover body is matched with the lower cover body, the upper part of the inner shell extends into the upper cover body, and the first electrode plate is opposite to the air outlet.

7. An air sterilizer as claimed in claim 6, wherein the lower housing is bowl-shaped.

8. An air sterilizer as claimed in claim 7,

the air inlet is provided with a plurality of arc-shaped openings, and each arc-shaped opening is extended upwards from the bottom of the lower shell in a radiation mode.

9. The air sterilizer as claimed in claim 1, wherein the area of the first electrode plate is greater than or equal to the entire area of the second electrode plate on which the discharge needles are arranged.

10. An air sterilizer as claimed in any one of claims 1 to 9, wherein the air sterilizer further comprises a support frame for carrying the housing.