CN218599949U

CN218599949U - Air purification structure, lamps and lanterns and sterilamp

Info

Publication number: CN218599949U
Application number: CN202222635185.6U
Authority: CN
Inventors: 陈思彤
Original assignee: Shenzhen Hensel Photoelectric Co ltd
Current assignee: Shenzhen Hensel Photoelectric Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-10
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to an air purification structure, a lamp and a disinfection lamp, wherein the air purification structure comprises a main machine body, a first air channel layer and a second air channel layer are arranged in the main machine body, and a ventilation hole is arranged between the first air channel layer and the second air channel layer for communication; the outer ring of the first air duct layer is partially or completely provided with an air inlet, the air inlet is communicated with the outside, and a filter medium layer is detachably arranged at the air inlet; an air outlet is formed in the main machine body and communicated with the second air duct layer; and the first air channel layer or the second air channel layer is internally provided with a ventilation device for providing power for air circulation, and the outside air flows through the filter medium layer to be filtered and then sequentially passes through the first air channel layer, the ventilation device, the second air channel layer and the air outlet and then is discharged to the outside to form air circulation. The utility model can expand the air purification range and enhance the purification effect; the filter medium layer can remove dust and can be disassembled, so that the filter medium layer is convenient for users to replace, the filtering effect and the cleanness of the interior of the main machine body are kept, and the failure of the air purification function is avoided.

Description

Air purification structure, lamp and sterilizing lamp

Technical Field

The utility model relates to a lighting apparatus technical field, concretely relates to air purification structure, lamps and lanterns and sterilamp.

Background

Common lamps in the related art, such as ceiling lamps, usually have only an illumination function, and less have an air purification function, or the purification function is weaker, and the effect is not obvious. The ceiling lamp is called as the ceiling lamp as the name suggests because the upper part of the lamp is flat and the bottom is completely attached to the roof when the lamp is installed, and the light source of the ceiling lamp comprises a common white bulb, a fluorescent lamp, an HID lamp, an energy-saving lamp, an LED lamp and the like. The most popular ceiling lamp in the market is the LED ceiling lamp, which is a lamp frequently selected in various places such as families, offices, entertainment places and the like.

For example, patent application No. cn201610797423.X discloses an air purification lamp, through set up anion generator in the lamp body, produce anion and float the smog dust that takes the positive charge in near air and carry out the electrode neutralization, make its natural deposition, but this kind of air purification lamp's purification scope is limited, only its scope that produces static is limited, lead to purifying function weak, the effect is not obvious, and after long-time the use, its inside easy deposition is difficult clean, can lead to the dust removal function to become invalid when serious.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an air purification structure, lamps and lanterns and sterilamp for solve the limited problem of the lamps and lanterns purification range that have the air purification function among the correlation technique.

In order to achieve one or part or all of the purposes or other purposes, the utility model provides an air purification structure, which comprises a main machine body, wherein a first air channel layer and a second air channel layer are arranged in the main machine body, and a ventilation hole is arranged between the first air channel layer and the second air channel layer for communication;

the outer ring of the first air duct layer is partially or completely provided with an air inlet, the air inlet is communicated with the outside, and a filter medium layer is detachably arranged at the air inlet;

an air outlet is formed in the main machine body and communicated with the second air duct layer;

and a ventilation device is arranged in the first air channel layer or the second air channel layer and used for providing power for air circulation, and outside air flows through the filter medium layer to be filtered and then sequentially passes through the first air channel layer, the ventilation device, the second air channel layer and the air outlet and then is discharged to the outside to form air circulation.

In an optional embodiment, the air inlet is annular, the shape of the filter medium layer is matched with that of the air inlet, and at least one fracture position is arranged on the filter medium layer.

In an alternative embodiment, the filter medium layer is provided with a clamp at the periphery thereof for preventing the filter medium layer from dislocating.

In an optional embodiment, the clamp comprises a first clamp body, a second clamp body, a rotating shaft body and a lock catch;

the rotating shaft body is arranged on the main machine body;

the one end of first hoop body with the one end of second hoop body all rotates to be connected on the pivot body, the other end of first hoop body with the other end of second hoop body is through setting up the hasp locks or opens.

In an optional embodiment, the clamp is provided with a plurality of through holes.

In an optional embodiment, a limiting mechanism is arranged on the top surface and/or the bottom surface inside the first air duct layer and used for limiting the filter medium layer.

In an optional embodiment, part or all of the filter medium layer is HEPA filter cotton.

The utility model also provides a lamp, which comprises any one of the air purification structures and a lighting unit, wherein the lighting unit is arranged at the bottom of the main machine body;

the air outlet is arranged on the bottom surface and/or the side surface of the main machine body, and when the air outlet is arranged on the bottom surface of the main machine body, the air outlet is positioned on the periphery of the lighting unit.

In an optional embodiment, the lamp further comprises a mounting plate, the top of the main machine body is a mounting base, the mounting plate is used for being fixed on an external wall surface, the mounting base is arranged at the top of the first air duct layer, and the mounting plate is detachably connected with the mounting base.

The utility model discloses still provide a sterilamp, including above the lamps and lanterns, still include photocatalyst unit and ultraviolet lamp unit, photocatalyst unit with the ultraviolet lamp unit sets up first wind channel layer and/or in the second wind channel layer.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the utility model discloses a set up filter medium layer filtered air and realize purification performance, realize wind circulation function through setting up ventilation unit, the air is filtered the back by the suction host computer body from the external world and is arranged back to the external world again and realize the circulation to enlarge air purification's scope, reinforcing purifying effect and indoor ventilation effect.

The filter medium layer can prevent dust from entering the main body and being detached from the air inlet while filtering, so that a user can conveniently replace the filter medium layer, the filter effect and the cleanness of the inner part of the main body are kept, and the failure of the air purification function is effectively avoided.

The utility model discloses a scheme in stratiform wind channel can improve the space utilization of the host computer body, when not increasing the host computer body volume, effectively guarantees the ventilation performance in its inside wind channel. The filter medium layer sets up in the periphery in first wind channel, when effectively increasing filter area, avoids the host computer body generally huge like ordinary sterilizing machine or ordinary air purifier, and space utilization is high.

The problem of have the lamps and lanterns purification range of air purification function limited among the correlation technique is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings required to be used in the description of the embodiments or the related art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

FIG. 1 is a cross-sectional view of a sterilizing lamp according to an embodiment of the present invention;

FIG. 2 is a perspective view of a sterilizing lamp according to an embodiment of the present invention;

FIG. 3 is an exploded view of a disinfecting lamp according to an embodiment of the present invention;

FIG. 4 is an exploded view of a portion of a lamp according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 1;

fig. 6 is a front view of the latch according to an embodiment of the present invention.

The reference numerals are illustrated below: 1-a ceiling mechanism; 11-a mounting plate; 111-mounting holes; 112-buckling; 113-a first stop; 114-empty slot position; 12-a mounting seat; 121-a card holder; 122-a second limiting part; 2-a first air duct layer; 21-a limiting mechanism; 3-a second air duct layer; 4, air outlet; 5-air outlet grille; 6-vent hole; 7-a ventilation device; 8-a layer of filter media; 81-a fracture site; 9-clamping a hoop; 91-a first hoop body; 911-first fastening position; 92-a second hoop body; 921-second fastening position; 93-a rotating shaft body; 94-locking and buckling; 941-fastener; 942-a buckle base; 01-a lighting unit; 02-photocatalyst unit; 021-photocatalyst element; 022-UVA lamp body; 03-an ultraviolet lamp unit; 04-cover body; 041-upper cover; 042-cover plate; 043-heat dissipation holes; 05-connecting column.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1 to 4, an embodiment of the present invention relates to an air purification structure, which includes a main body, a first air duct layer 2 and a second air duct layer 3 are disposed in the main body, and a ventilation hole 6 is disposed between the first air duct layer 2 and the second air duct layer 3 for communicating.

The outer ring of the first air duct layer 2 is partially or completely provided with an air inlet which is communicated with the outside, and the air inlet is detachably provided with a filter medium layer 8. An air outlet 4 is arranged on the main machine body, and the air outlet 4 is communicated with the second air duct layer 3.

And a ventilation device 7 is arranged in the first air channel layer 2 or the second air channel layer 3 and used for providing power for air circulation, and outside air flows through the filter medium layer 8 to be filtered and then sequentially passes through the first air channel layer 2, the ventilation device 7, the second air channel layer 3 and the air outlet 4 and then is discharged to the outside, so that air circulation is formed, and the air circulation function is realized. By way of example, the ventilation device 7 may be a fan, which is arranged in the second air duct layer 3 below the ventilation holes 6, as shown in fig. 1. The design of the layered air duct (namely the first air duct layer 2 or the second air duct layer 3) is adopted, so that the space utilization rate of the host body can be improved, and the ventilation performance of the internal air duct can be effectively ensured without increasing the volume of the host body. In addition, the air inlet is arranged on the outer ring of the first air duct layer 2 and the filter medium layer 8 is arranged on the air inlet, so that the size of the main body is not required to be increased while the filter area is effectively increased, and the main body is prevented from being large as a common sterilizing machine or a common air purifier and high in space utilization rate.

The filter medium layer 8 is used for filtering out impurities such as dust, thalli and the like, and the air purification function is realized. Part or all of the filter medium layer 8 may be a filter medium of HEPA (High-efficiency air filter) filter cotton or ULPA (Ultra low efficiency air filter) filter cotton. Illustratively, the filter media layer 8 may comprise a plurality of layers, wherein one layer is HEPA filter cotton. The filter medium layer 8 can prevent dust, thalli and the like from entering the main machine body when filtering air, and can be detached from the air inlet, so that a user can conveniently replace the filter medium layer 8, the filtering effect and the cleanness of the main machine body are kept, and the failure of the air purification function is effectively avoided.

Optionally, the air inlet is annular, the shape of the filter medium layer 8 fits the air inlet, and at least more than one fracture position 81 is arranged on the filter medium layer 8. The purpose of setting up fracture position 81 is for the convenience of customers dismantles filter medium layer 8, because filter medium layer 8 is whole to become cyclic annular, and filter medium layer 8's elastic deformation ability is limited, and it is comparatively inconvenient to strut back and take out from the air intake, sets up fracture position 81 and can make filter medium layer 8 be the banding or be the segmental form and tear out, the user of being convenient for changes. As shown in fig. 3 and 4, two breaking points 81 are provided on the filter medium layer 8, that is, the filter medium layer 8 is composed of two sections, and when the filter medium layer 8 is disassembled, the filter medium layer 8 is removed from the left and right sides respectively.

In some alternative embodiments, the filter media layer 8 is provided with a band 9 around its periphery to prevent dislocation of the filter media layer 8.

As an example, the clamp 9 is in the form of an open ring, which is elastically deformable, and the open part can be provided with a locking device 94, such as a screw, a snap, etc., for locking and fixing, and when the filter medium layer 8 is removed, the clamp 9 can be removed from the filter medium layer 8 as a whole.

As another example, please refer to fig. 1 to 4 and 6, the clamp 9 includes a first clamp body 91, a second clamp body 92, a rotating shaft body 93 and a lock catch 94, the rotating shaft body 93 is disposed on the main body (for example, the upper and lower wall surfaces of the outer ring of the first air duct layer 2 are provided with rotating shaft slots, as shown in fig. 1, two ends of the rotating shaft body 93 are inserted into the rotating shaft slots), one end of the first clamp body 91 and one end of the second clamp body 92 are both rotatably connected to the rotating shaft body 93, and the other end of the first clamp body 91 and the other end of the second clamp body 92 are locked or unlocked by the lock catch 94. When the filter medium layer 8 is disassembled, the lock catch 94 is opened, the first hoop body 91 and the second hoop body 92 are rotated, the first hoop body 91 and the second hoop body 92 are opened towards the left side and the right side respectively by taking the rotating shaft body 93 as an axis, compared with an integrated hoop body with an annular opening, the operating space for disassembling the filter medium layer 8 is large, the hoop body is connected to a main machine body through the rotating shaft body 93, and parts are not easy to lose during disassembly.

The clips 9 may be provided with a plurality of through holes, as shown in fig. 2.

The catch 94 may be a screw, buckle (fig. 6), magnetic catch, door lock, latch, or the like.

As an example, referring to fig. 4 and fig. 6, one end of the first hoop body 91 is provided with a first fastening location 911, one end of the second hoop body 92 is provided with a second fastening location 921, the latch 94 is a buckle, the buckle includes a buckle seat 942 and a buckle head 941 that are detachably connected, and the buckle seat 942 and the buckle head 941 are respectively fixed on the second fastening location 921 and the first fastening location 911.

The top surface and/or the bottom surface inside the first air duct layer 2 are/is provided with a limiting mechanism 21 for limiting the filter medium layer 8, so that the installation position of the filter medium layer 8 is accurate and dislocation is prevented. The limiting mechanism 21 may be a protruding rib. For example, as shown in fig. 1 and fig. 3, the top surface inside the first air duct layer 2 is provided with a plurality of arranged sheet-shaped reinforcing ribs for reinforcing and limiting the top inside of the filter medium layer 8, and the bottom surface inside the first air duct layer 2 is provided with an annular convex rib protruding upwards for limiting the bottom inside of the filter medium layer 8.

Referring to fig. 1 and fig. 3, an embodiment of the present invention, in addition to the air purification structure, further includes a lighting unit 01, the lighting unit 01 is disposed at the bottom of the main body; the air outlet 4 is arranged on the bottom surface and/or the side surface of the main machine body, and when the air outlet 4 is arranged on the bottom surface of the main machine body, the air outlet 4 is positioned on the periphery of the lighting unit 01. The lighting unit 01 can be one or more of an LED lamp, a common white bulb, a fluorescent lamp, an HID lamp, a halogen tungsten lamp and a fluorescent lamp, and can emit visible light rays to human eyes.

In order to facilitate the hanging of the main body on the ceiling or the side wall, in some embodiments, the luminaire may be provided with a ceiling-mounted mechanism 1, the ceiling-mounted mechanism 1 includes a mounting seat 12 at the top of the main body and a mounting plate 11 additionally provided, and the mounting plate 11 and the mounting seat 12 are detachably connected.

In an optional embodiment, the lamp further comprises a mounting plate 11, the top of the main body is a mounting seat 12, the mounting plate 11 is used for being fixed on an external wall surface, the mounting seat 12 is arranged on the top of the first air duct layer 2, and the mounting plate 11 and the mounting seat 12 are detachably connected.

As an alternative embodiment, referring to fig. 1, fig. 2, fig. 4 and fig. 5, a recess is recessed on the top of the mounting base 12, and the mounting plate 11 is detachably covered on the recess. The mounting plate 11 is provided with a plurality of mounting holes 111, and the mounting plate 11 is used for being fixed on an external wall surface. A plurality of clamping seats 121 are arranged on the groove at intervals, a plurality of buckles 112 are correspondingly arranged on the mounting plate 11, and when the mounting seat 12 rotates to a preset position relative to the mounting plate 11, the clamping seats 121 and the buckles 112 are clamped. The mounting hole 111 may be used to receive a locking member such as a screw and to be fixed to a ceiling or a side wall, or may be used to be hung on a peg of the side wall.

The card holder 121 and the buckle 112 can be clamped in a manner of pressing against each other, or clamped in a manner of fastening (for example, the card holder 121 has a hole groove, the buckle 112 has a protrusion, and the protrusion can be fastened into the hole groove), or clamped in a manner of a quick connector (for example, the card holder 121 is configured as a female head of a quick connector, and the buckle 112 is a male head of the quick connector).

For example, as shown in fig. 5, the card seat 121 and the buckle 112 are clamped in a manner of pressing against each other, the card seat 121 is disposed on a side wall of the groove, the card seat 121 protrudes toward the center of the groove, and the buckle 112 is in a hook shape; when the mounting base 12 rotates to a predetermined position relative to the mounting plate 11, the lower end surface of the clamping base 121 presses the upper end surface of the buckle 112 under the gravity of the mounting base 12. When the main body is disassembled, the main body can be disassembled by rotating in the opposite direction.

The buckle 112 is L-shaped, and a slot 114 is reserved on the buckle, and when the main body rotates to a preset angle, the clamping base 121 is screwed into the slot 114.

In an alternative embodiment, as shown in fig. 5, the upper end surface of the buckle 112 is provided with a first position-limiting portion 113 protruding upward, the lower end surface of the clamping seat 121 is provided with a second position-limiting portion 122 protruding downward, and the first position-limiting portion 113 is used for abutting against the second position-limiting portion 122. The main body can be effectively prevented from being separated from the mounting plate 11 due to accidental reverse rotation, and safety accidents are avoided. When detaching, the main body is lifted upwards to make the second position-limiting part 122 higher than the first position-limiting part 113, and then the main body can be detached by rotating in the opposite direction. The two ends of the second limiting part 122 and the first limiting part 113 in the horizontal direction can be provided with inclined planes or curved surfaces for guiding transition during rotation, so that the disassembly is not hindered while the limiting function is achieved.

In an alternative embodiment, as shown in fig. 1 to 4, the main body includes a mounting base 12 and a housing 04, and the mounting plate 11 is disposed above the housing 04.

The space between the mounting seat 12 and the cover body 04 is a first air duct layer 2, the inner space of the cover body 04 is a second air duct layer 3, the top of the cover body 04 is provided with a ventilation hole 6, and the first air duct layer 2 and the second air duct layer 3 are communicated through the ventilation hole 6. The outer ring of the first air duct layer 2 is partially or completely an air inlet, and the cover body 04 is provided with an air outlet 4. The filter medium layer 8 is sandwiched between the mounting base 12 and the cover 04.

As shown in fig. 1, the mount 12 may be mounted above the housing 04 by connecting posts 05. The connecting column 05 comprises an upper half section and a lower half section, the upper half section is formed by downward extending the mounting base 12, the lower half section is formed by upward extending the cover body 04, and the upper half section and the lower half section are clamped or fixedly connected through locking pieces such as screws.

The cover body 04 comprises an upper cover 041 and a cover plate 042 which are mutually covered, the bottom surface of the cover plate 042 is upwards concavely provided with a mounting groove, a lighting unit 01 is arranged in the mounting groove, and the top surface in the mounting groove is provided with a plurality of heat dissipation holes 043 communicated with the second air duct layer 3. The heat that lighting unit 01 produced can be exported to the external world after accessible louvre 043 gets into second air duct layer 3, air outlet 4, does benefit to and dispels the heat to lighting unit 01, and need not additionally to increase spare part and can realize.

A plurality of air outlet grilles 5 can be arranged at the bottom or the side of the cover plate 042, and the grid holes of the air outlet grilles 5 are the air outlets 4. For example, as shown in fig. 3, the number of the air outlet grilles 5 is three, and the air outlet grilles are all arranged on the outer ring of the bottom surface of the cover plate 042 and are arranged in a circumferential manner.

As shown in fig. 1 and fig. 3, an embodiment of the present invention provides a disinfection lamp, which includes the above lamps, and further includes a photocatalyst unit 02 and an ultraviolet lamp unit 03, wherein the photocatalyst unit 02 and the ultraviolet lamp unit 03 are disposed in the first air duct layer 2 and/or the second air duct layer 3. The photocatalyst unit 02 is used for removing harmful gas, dust, disinfection, sterilization, etc. The ultraviolet lamp unit 03 is used for sterilization. After harmful gas, thallus, dust and the disinfection of the ultraviolet lamp unit 03 are removed from the air flow which is pumped into the main machine body from the outside through the photocatalyst unit 02, the air flow is discharged back to the outside again, the filtering medium layer 8 is matched, the range of the pathogen species to be disinfected is enlarged, and the air flow is triple degerming and impurity removal, so that more effective air purification and disinfection effects are achieved.

The Ultraviolet lamp unit 03 may be one or more of an UVA (Ultraviolet) lamp, a UVB (Ultraviolet) lamp, or a UVC (Ultraviolet) lamp. In this embodiment, the ultraviolet lamp unit 03 is a UVC lamp because the sterilization effect in the UVC band is better.

Illustratively, the photocatalyst unit 02 includes a photocatalyst part 021 and a plurality of UVA lamp bodies 022. The UVA lamp body 022 is used as an irradiation light source of the photocatalyst part 021, so that the photocatalyst part 021 generates a substance with strong oxidizing property. The photocatalyst part 021 and the UVA lamp body 022 are disposed in the first air passage layer 2 and/or the second air passage layer 3. The photocatalyst part 021 may be a ceramic plate containing titanium dioxide, or the like. The photocatalyst 021 may be in the form of a mesh plate covering the air vent 6. The photocatalyst is also called as photocatalyst, is a general name of a semiconductor material with a photocatalytic function represented by nano-scale titanium dioxide, can generate substances with strong oxidizing property (such as hydroxyl free radicals, oxygen and the like) under the irradiation of light, can be used for decomposing organic compounds, partial inorganic compounds, bacteria, viruses and the like, and can effectively degrade toxic and harmful gases in the air such as formaldehyde and the like to efficiently purify the air; meanwhile, various thalli can be effectively killed, and toxins released by bacteria or fungi can be decomposed and subjected to harmless treatment. Thereby realizing the functions of removing harmful gases and sterilizing.

To sum up, the utility model discloses a set up 8 filtered air of filter medium layer and realize purification performance, realize wind circulation function through setting up ventilation unit 7, the air is filtered the back from the external world by the suction host computer body and is arranged the external world again and realize the circulation to enlarge air purification's scope, reinforcing purifying effect and indoor ventilation effect.

The filter medium layer 8 can prevent dust from entering the main body and being detached from the air inlet while filtering, so that a user can conveniently replace the filter medium layer 8, the filter effect and the cleanness of the inner part of the main body are kept, and the failure of the air purification function is effectively avoided.

The utility model discloses a scheme in stratiform wind channel can improve the space utilization of the host computer body, when not increasing the host computer body volume, effectively guarantees the ventilation performance in its inside wind channel. The filter medium layer 8 is arranged at the periphery of the first air channel, so that the filtering area is effectively increased, and the phenomenon that the main machine body is large as a common sterilizing machine or a common air purifier is avoided, and the space utilization rate is high.

Realize the function dismantled between the two through mounting panel 11 and the mount pad 12 that set up rotatable card and hold, during the installation, only need fix mounting panel 11 on the ceiling in advance, it makes the mounting panel 11 buckle the recess of mount pad to remove the host computer body, rotatory host computer body make buckle 112 and cassette 121 block mutually can, during the dismantlement, the host computer body can be taken off to the counter rotation host computer body, the installation and dismantle convenient and fast, the spare part is changed in the later stage of being convenient for, maintenance and cleanness.

The uv lamp unit 03 may be further thoroughly sterilized of pathogens. The photocatalyst unit 02 can increase the function of removing harmful gases such as formaldehyde, and has the functions of dust removal and sterilization, so that pathogen removal objects can be further enlarged, and the air purification effect and the disinfection effect can be optimized.

The utility model discloses collect multi-functionally in an organic whole, and small in size does not take up an area, but the multiple use scene of adaptation.

Although the present application has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application, and all changes, substitutions and alterations that fall within the spirit and scope of the application are to be understood as being covered by the following claims.

Claims

1. An air purification structure which characterized in that: the wind power generation device comprises a main machine body, wherein a first air channel layer (2) and a second air channel layer (3) are arranged in the main machine body, and a ventilation hole (6) is formed between the first air channel layer (2) and the second air channel layer (3) for communication;

the outer ring of the first air duct layer (2) is partially or completely provided with an air inlet, the air inlet is communicated with the outside, and a filter medium layer (8) is detachably arranged at the air inlet;

an air outlet (4) is formed in the main machine body, and the air outlet (4) is communicated with the second air duct layer (3);

and a ventilation device (7) is arranged in the first air channel layer (2) or the second air channel layer (3) and used for providing power for air circulation, and outside air flows through the filter medium layer (8) to be filtered and then sequentially passes through the first air channel layer (2), the ventilation device (7), the second air channel layer (3) and the air outlet (4) and then is discharged to the outside to form air circulation.

2. The air purification structure of claim 1, wherein: the air inlet is annular, the shape of the filter medium layer (8) is matched with that of the air inlet, and at least one fracture position (81) is arranged on the filter medium layer (8).

3. The air purification structure of claim 1, wherein: the periphery of the filter medium layer (8) is provided with a clamp (9) for preventing the filter medium layer (8) from dislocation.

4. The air purification structure of claim 3, wherein: the clamp (9) comprises a first clamp body (91), a second clamp body (92), a rotating shaft body (93) and a lock catch (94);

the rotating shaft body (93) is arranged on the main machine body;

one end of the first hoop body (91) and one end of the second hoop body (92) are rotatably connected to the rotating shaft body (93), and the other end of the first hoop body (91) and the other end of the second hoop body (92) are locked or unlocked through the lock catch (94).

5. The air purification structure of claim 3, wherein: and a plurality of through holes are formed in the hoop (9).

6. The air purification structure of claim 1, wherein: and a limiting mechanism (21) is arranged on the top surface and/or the bottom surface inside the first air duct layer (2) and is used for limiting the filter medium layer (8).

7. The air purification structure of claim 1, wherein: part or all of the filter medium layer (8) is HEPA filter cotton.

8. A light fixture, characterized by: comprising the air purification structure as claimed in any one of claims 1 to 7, further comprising a lighting unit (01), the lighting unit (01) being disposed at the bottom of the main body;

air outlet (4) are seted up on the bottom surface and/or the side of the host computer body, work as air outlet (4) are seted up when the bottom surface of the host computer body, air outlet (4) are located the periphery of lighting unit (01).

9. The luminaire of claim 8, wherein: lamps and lanterns still include mounting panel (11), the top of the host computer body is mount pad (12), mounting panel (11) are used for fixing on external wall, mount pad (12) set up first wind channel layer (2) top, mounting panel (11) with can dismantle the connection between mount pad (12).

10. A sterilizing lamp, characterized by: a lamp comprising a photocatalyst unit (02) and a uv lamp unit (03) as claimed in claim 8 or 9, said photocatalyst unit (02) and said uv lamp unit (03) being arranged within said first air duct layer (2) and/or said second air duct layer (3).