CN216629263U

CN216629263U - Sterilizing fragrance device

Info

Publication number: CN216629263U
Application number: CN202122822814.1U
Authority: CN
Inventors: 黄祺娟; 吴汉元
Original assignee: Aromate Industries Co Ltd
Current assignee: Aromate Industries Co Ltd
Priority date: 2021-02-26
Filing date: 2021-11-17
Publication date: 2022-05-31
Anticipated expiration: 2031-11-17
Also published as: TWM614348U

Abstract

The utility model discloses a sterilizing aromatic device, which comprises: the upper part of the shell is provided with a plurality of air outlet holes and an accommodating concave part, and a buckle component is arranged in the accommodating concave part; a high-performance photocatalyst honeycomb net arranged in the shell; a circuit module, which is arranged in a lower space of the shell and is provided with a fan for generating air flow; and a plurality of light emitting components for emitting light to irradiate the high-performance photocatalyst honeycomb net; and the fragrance module is arranged in the accommodating concave part, and the bottom of the fragrance module is provided with a connecting column which is used for being matched with the buckle component so as to arrange the fragrance module in the accommodating concave part. According to the sterilizing aromatic device, the fragrance emitted by the aromatic module can be effectively diffused in the surrounding space, viruses, bacteria and harmful organic substances in the air can be eliminated, and the purposes of purifying the air and improving the air quality are achieved.

Description

Sterilizing fragrance device

Technical Field

The utility model relates to a sterilizing aromatic device, in particular to a sterilizing aromatic device for improving the quality of indoor or in-vehicle air.

Background

Conventional fragrance apparatuses generally employ passive fragrance dispensers to dispense fragrance from a fragrance material into the air, such as: the fragrance is placed in the container such that the opening of the container contacts the air, and the aromatic odor is emitted into the air. However, such passive fragrance emitting devices generally have the disadvantages of poor fragrance emitting efficiency and limited fragrance diffusion range.

In addition, the existing fragrance apparatus generally has only a function of emitting fragrance alone, and cannot practically eliminate harmful viruses, bacteria, odor and harmful organic substances in the air, so that the air quality cannot be practically improved.

Therefore, how to overcome the above-mentioned drawbacks by improving the structural design has become one of the important issues to be solved by the industry.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that the fragrance emitting effect of the prior art fragrance device is poor and the indoor air quality cannot be effectively improved.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a sterilizing aromatic device, which includes: the air conditioner comprises a machine shell, a clamping component and a fan, wherein the bottom of the machine shell is provided with a plurality of air inlets, the upper part of the machine shell is provided with a plurality of air outlets, and the clamping component is arranged in an accommodating concave part; the high-performance photocatalyst honeycomb net is arranged in the shell and is arranged between the air inlet holes and the air outlet holes; the circuit module is arranged in a lower space of the shell and is provided with a fan which is used for generating airflow flowing from the air inlets to the air outlets; and a plurality of light emitting components for emitting light to irradiate the high-efficiency photocatalyst honeycomb net; and the fragrance module is arranged in the accommodating concave part and is provided with a connecting column which is matched with the buckle component so as to arrange the fragrance module in the accommodating concave part.

In a preferred embodiment of the present invention, the bottom end of the connecting column has a fastening end with a larger diameter; the clamping buckle assembly is provided with a clamping jaw which is accommodated in an opening at the upper end of a shell; when the aromatic module is placed in the accommodating concave part, the bottom end of the connecting column pushes the clamping jaw to enable the clamping jaw to descend into the opening of the shell, the clamping jaw is pressed by the inner side wall of the opening to enable the clamping jaw to clamp inwards, the clamping jaw is clamped at the position, above the clamping end, of the connecting column, the clamping jaw is combined with the connecting column, and then the aromatic module is positioned in the accommodating concave part; when the clamping jaws are lifted to be separated from the opening at the upper end of the shell, the clamping jaws can be opened outwards to release the connecting column, so that the fragrance module can be taken out of the containing concave part.

In a preferred embodiment of the present invention, the fastening assembly further has a spring pressing assembly, the spring pressing assembly is connected below the clamping jaw, the spring pressing assembly has a holding mechanism and an elastic assembly inside, when the clamping jaw presses the spring pressing assembly downward, the holding mechanism inside the spring pressing assembly can position the spring pressing assembly and the clamping jaw at a descending position, so that the clamping jaw is positioned in a state of being clamped inside the opening at the upper end of the housing; and when the clamping jaw and the pressing elastic component are pressed down again, the clamping mechanism can release the pressing elastic component, so that the pressing elastic component rises and drives the clamping jaw to be separated from the opening at the upper end of the shell.

In a preferred embodiment of the present invention, the fragrance module comprises: an upper cover, a bottom cover, and a fragrance container; the upper cover and the bottom cover can be combined oppositely, the aromatic container is accommodated between the upper cover and the bottom cover, and the upper cover and the bottom cover are provided with a plurality of ventilation holes, so that the fragrance emitted by the aromatic container can be emitted by the plurality of ventilation holes; the bottom of holding the concave part is provided with a plurality of bleeder vents, and is a plurality of bleeder vent and a plurality of the ventilation hole is linked together, and makes the inside air current of casing can pass through bleeder vent and a plurality of the ventilation hole enters into inside the fragrant module.

In a preferred embodiment of the present invention, the upper cover has an opening such that the upper end of the container is exposed from the opening.

In a preferred embodiment of the present invention, the fragrance container has a housing, the housing contains a fragrance material therein, and one side of the housing has a gas permeable membrane, so that the fragrance of the fragrance material can be emitted through the gas permeable membrane; when the fragrance container is accommodated inside the upper cover and the bottom cover, the air permeable membrane faces the bottom cover so that the air flow entering the plurality of vent holes can contact the air permeable membrane.

In a preferred embodiment of the present invention, the aromatic container further comprises a sealing film covering an outer side of the air permeable film, and when the aromatic container is inserted into the aromatic module, the sealing film can be torn off to expose the air permeable film.

In a preferred embodiment of the present invention, the plurality of ventilation holes above the chassis are arranged in a ring shape at the periphery of the accommodating recess.

In a preferred embodiment of the present invention, the circuit module further includes a circuit substrate and a battery for supplying power to the fan and the plurality of light emitting elements.

In a preferred embodiment of the present invention, the high performance photocatalyst cellular net has cellular meshes, so that the air flow inside the casing can pass through the high performance photocatalyst cellular net; the high-efficiency photocatalyst honeycomb net is provided with a photocatalyst layer.

In a preferred embodiment of the present invention, the light emitting elements are light emitting diodes capable of emitting light with a wavelength that promotes the catalytic reaction of the photocatalyst layer.

In a preferred embodiment of the present invention, a partition board is further disposed inside the housing, the partition board is disposed between the circuit module and the high performance photocatalyst honeycomb net, and the partition board has an opening corresponding to the fan, a plurality of light holes corresponding to the plurality of light emitting elements, and an annular concave surrounding the plurality of light holes.

The utility model has the advantages that the fan and the high-efficiency photocatalyst filter screen are arranged in the shell, and the fragrance module and the air outlet are arranged above the shell, so that the fragrance emitted by the fragrance module can be effectively diffused in the surrounding space, viruses, bacteria and harmful organic substances in the air can be eliminated, and the purposes of purifying the air and improving the air quality are achieved.

For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the utility model.

Drawings

Fig. 1 is a perspective assembly view of the sterilizing fragrance device of the present invention.

Fig. 2 is a schematic exploded perspective view of the sterilizing fragrance device of the present invention.

Fig. 3 is a perspective exploded view of a fragrance module used in the present invention.

FIG. 4 is an exploded perspective view of the fragrance module used in the present invention taken from another angle.

FIG. 5 is a schematic sectional view of the sterilizing fragrance device of the present invention.

Fig. 6 is a partially enlarged sectional view of the fragrance module of the sterilizing fragrance apparatus according to the present invention in a state of being accommodated in the accommodating recess of the cabinet.

Fig. 7 is a partially enlarged sectional view of the fragrance module of the sterilizing fragrance apparatus according to the present invention in a state of being taken out from the receiving recess of the housing.

Detailed Description

The following description is provided for the purpose of illustrating the embodiments of the present disclosure relating to "sterilizing aromatic devices" by way of specific examples, and will enable those skilled in the art to understand the advantages and effects of the present disclosure from the disclosure herein. The utility model is capable of other and different embodiments and its several details are capable of modifications and various changes in detail, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

Referring to fig. 1 to 7, an embodiment of the present invention provides a sterilizing fragrance apparatus 1, including: a housing 100, a circuit module 200, a fragrance module 300, and a net high-performance photocatalyst honeycomb net 140.

The housing 100 is formed by oppositely combining an upper housing 120 and a lower housing 110, a plurality of air inlets 111 are disposed at the bottom of the lower housing 110, and a switch 112 is disposed at one side of the lower housing 110 for a user to operate the sterilizing fragrance device 1 of the present invention. The upper housing 120 is assembled to the upper end of the lower housing 110, and defines a space together with the lower housing 110 to accommodate the circuit module 200 and the high performance photocatalyst honeycomb net 140. The upper end of the upper housing 120 is provided with an accommodating recess 121 and a plurality of air outlet holes 123.

As shown in fig. 2, the circuit module 200 is disposed inside the lower housing 110, and the circuit module 200 has a circuit substrate 210, a battery 220, a fan 230 and a plurality of light emitting elements 240. The fan 230 is disposed on the circuit substrate 210, and the fan 230 is configured to generate an airflow, so that the air outside the casing 100 is sucked into the casing 100 through the plurality of air inlet holes 111 and then discharged through the plurality of air outlet holes 123. In the present embodiment, the light-emitting elements 240 are light-emitting diodes, and more specifically, the light-emitting elements 240 are light-emitting diodes (e.g., ultraviolet light diodes) capable of emitting light with a specific wavelength, so that when the light emitted from the light-emitting elements 240 irradiates the high-performance photocatalyst cellular network 140, a catalytic reaction is generated on a photocatalyst layer of the high-performance photocatalyst cellular network 140. The battery 220 is a rechargeable battery for providing power to the fan 230 and the plurality of light emitting elements 240.

As shown in fig. 2 and 5, the high performance photocatalyst honeycomb net 140 is disposed inside the housing 100 at a position between the circuit module 200 and the air outlet 123, and the high performance photocatalyst honeycomb net 140 has a plurality of densely-distributed honeycomb-shaped mesh holes 141 and a photocatalyst layer (not shown) made of a photocatalyst material (e.g., titanium dioxide) disposed on the surface thereof. The air flow generated by the fan 230 can pass through the plurality of honeycomb-shaped meshes 141 of the high-performance photocatalyst honeycomb net 140, and the light emitted by the plurality of light-emitting elements 240 irradiates the high-performance photocatalyst honeycomb net 140, so that the photocatalyst layer can generate a catalytic reaction, and the purposes of decomposing and eliminating bacteria and viruses in the air and peculiar smell and organic substances in the air are achieved.

For example, in a preferred embodiment of the present invention, the photocatalyst layer on the surface of the high performance photocatalyst honeycomb mesh 140 can include titanium dioxide powder material. Because titanium dioxide material can produce catalytic reaction when receiving 200 ~ 400 nanometer (nm) wavelength ultraviolet irradiation, consequently it is a plurality of light-emitting component 240 is the ultraviolet diode that can send 365 ~ 400 nanometer wavelength light. When the photocatalyst layer on the surface of the high-performance photocatalyst honeycomb net 140 is irradiated by the light generated by the plurality of light emitting elements 240, electrons (e-) of the titanium dioxide material transition from the valence band to the conduction band, leaving a positive hole (h +), thereby forming an electron-hole pair. The generated electrons are combined with oxygen molecules to finally form superoxide radical ions (O2-), which are strong in reducibility; the holes react with moisture on the surface of the titanium dioxide to generate highly oxidative hydroxyl radicals (. OH). The active superoxide radical ions and hydroxyl radicals can carry out redox reaction on pollutants or on the surface of organic matters to decompose the organic matters, thereby achieving the effects of sterilization, bacteriostasis or decontamination.

As shown in fig. 2, a partition plate 130 is further disposed inside the housing 100, the partition plate 130 is disposed between the circuit module 200 and the high performance photocatalyst honeycomb mesh 140, and the partition plate 130 has an opening 131 corresponding to the fan 230, a plurality of light holes 133 corresponding to the plurality of light emitting elements 240, and an annular concave surface 132 surrounding the plurality of light holes 133. The plurality of light emitting elements 240 can be exposed from the plurality of light transmitting holes 133, and any one of the annular concave surfaces 132 surrounds the outer side of any one of the light emitting elements 240.

As shown in fig. 2, 3, 4 and 5, the fragrance module 300 is detachably disposed in a receiving recess 121 formed at an upper end of the housing 100, and the fragrance module 300 includes: an upper cover 320, a bottom cover 310 and a fragrance container 330, wherein the upper cover 320 and the bottom cover 310 can be combined oppositely, the fragrance container 330 is accommodated between the upper cover 320 and the bottom cover 310, and the bottom cover 310 is provided with a plurality of vent holes 311, so that the fragrance emitted from the fragrance container can be emitted from the plurality of vent holes 311.

As shown in fig. 3 and 4, in the present embodiment, the fragrance container 330 includes: a housing 331, wherein a housing space is formed inside the housing 331 to house the aromatic substance 335. An opening is formed on one side surface of the accommodating case 331, and a breathable film 334 is disposed at the opening of the accommodating case 331. The breathable film 334 is a porous film material, so that the fragrance of the aromatic substance 335 can be emitted through the breathable film 334, and the non-volatile aromatic substance 335 is prevented from leaking to the outside of the accommodating case 331. Furthermore, a sealing film 333 is disposed at the opening of the accommodating case 331, and a handle 332 capable of being pulled apart is disposed at one side of the accommodating case 331, the sealing film 333 is attached to the edge of the opening of the accommodating case 331 and the surface of the handle 332, and covers the outside of the air permeable film 334, so that the opening of the accommodating case 331 can be sealed to prevent the volatilization of the aromatic substance 335. When a user inserts the fragrance container 330 between the upper cover 320 and the bottom cover 310 of the fragrance module 300, the handle 332 is pulled open and the sealing film 333 is torn off, so that the opening of the receiving case 331 is opened.

As shown in fig. 5, the fragrance container 330 is placed inside the fragrance module 300 in a direction that the opening of the receiving case 331 faces downward, such that the opening of the receiving case 331 faces the plurality of vent holes 311 of the bottom cover 310, so that the fragrance of the fragrance container 330 is easily emitted. In addition, the upper cover 320 of the fragrance module 300 has an opening 321, when the fragrance container 330 is accommodated in the fragrance module 300, the top surface of the fragrance container 330 is exposed to the opening 321, so that a user can easily observe whether the fragrance material 335 stored in the fragrance container 330 is exhausted, so as to judge whether the fragrance container 330 needs to be replaced.

The fragrance module 300 is detachably disposed in the receiving recess 121. In this embodiment, the receiving recess 121 is formed at the top end of the casing 100 and is recessed downward from the top surface of the casing 100, and the diameter and depth of the receiving recess 121 are matched with the fragrance module 300, so that the fragrance module 300 can be received. And a plurality of ventilation holes 122 are formed at the bottom of the receiving recess 121, and the plurality of ventilation holes 122 are communicated with the plurality of ventilation holes 311 of the fragrance module 300, so that the air flow inside the cabinet 100 can pass through the ventilation holes 122 and the plurality of ventilation holes 311 and then contact the fragrance module 300.

A snap member 150 and a snap member receiving portion 124 are disposed at the bottom of the receiving recess 121, and a connection post 312 is disposed at the bottom of the bottom cover 310 of the fragrance module 300 at a position corresponding to the snap member 150. In this embodiment, the connecting column 312 is a cylinder vertically disposed at the center of the bottom cover 310, and the bottom end of the connecting column 312 has a fastening end 313 with a larger diameter. The fastening assembly 150 has a clamping jaw 151, a pressing spring assembly 152 and a housing 153, wherein the clamping jaw 151 is disposed at an opening at an upper end of the housing 153, inner side surfaces of two ends of the clamping jaw 151 are respectively provided with a fastening protrusion 1511, and the pressing spring assembly 152 is connected to a lower portion of the clamping jaw 151 and is accommodated inside the housing 153.

As shown in fig. 5, 6 and 7, when the fragrance module 300 is placed in the accommodating recess 121, the bottom end of the connecting column 312 can be inserted into the center of the clamping jaw 151, and the clamping jaw 151 is pressed downward, so that the clamping jaw 151 descends into the interior of the housing 153. At this time, the clamping jaw 151 is pressed by two side walls at the opening of the housing 153, so that two side edges of the clamping jaw 151 are clamped inwards, the connecting column 312 is clamped at a position above the clamping end 313, and the two clamping protrusions 1511 can be clamped at the upper end of the clamping end 313, so that the connecting column 312 cannot be separated from the clamping jaw 151, and the fragrance module 300 is positioned in the accommodating concave portion 121.

Moreover, the inside of the elastic pressing component 152 connected below the clamping jaw 151 is provided with a holding mechanism and an elastic component, which are not shown in the drawing, as shown in fig. 6, when the elastic pressing component 152 and the clamping jaw are interlocked and pressed downwards, the holding mechanism inside the elastic pressing component 152 can position the elastic pressing component 152 and the clamping jaw 151 at a descending position, so that the clamping jaw 151 is positioned in a state of being clamped in the opening at the upper end of the housing 153, and the clamping jaw 151 is kept clamped in the connecting column 312. As shown in fig. 7, when the clamping jaw 151 and the elastic pressing component 152 are pressed down again, the holding mechanism inside the elastic pressing component 152 can generate a releasing action, so that the elastic pressing component 152 is sprung upwards to drive the clamping jaw 151 to lift up to be separated from the opening at the upper end of the housing 153, so that the clamping jaw 151 is opened to be separated from the connecting column 312, and the fragrance module 300 is lifted along with the elastic pressing component 152 and the clamping jaw 151, so that the upper end of the fragrance module 300 protrudes out of the upper end of the accommodating recess 121, and the user can easily take out the fragrance module 300 from the accommodating recess 121.

Therefore, the connection post 312 and the snap assembly 150 are engaged to allow an operator to quickly mount the fragrance module 300 in the receiving recess 121 or remove the fragrance module from the receiving recess 121, so that the fragrance container 330 inside the fragrance module 300 can be quickly and easily replaced.

As shown in fig. 5, in the using state of the sterilization aromatic device 1 of the present invention, the fan 230 can generate an airflow to suck air from the air inlet 111 at the bottom of the housing 100, and after passing through the high performance photocatalyst honeycomb mesh 140, the airflow is made to flow upward to enter the interior of the aromatic module 300 and is exhausted from the plurality of air vents 311, and the fragrance emitted from the aromatic module 300 is diffused in the air by the airflow, so that the fragrance can be effectively diffused in the surrounding space.

Moreover, when the air flow passes through the high performance photocatalyst honeycomb net 140, the photocatalyst layer of the high performance photocatalyst honeycomb net 140 is irradiated by the light of the plurality of light emitting elements 240 to generate a catalytic reaction, so that the air passing through the high performance photocatalyst honeycomb net 140 has superoxide radical ions and hydroxyl radical, thereby eliminating viruses, bacteria, peculiar smell and harmful organic substances in the air, and the air can have the fragrance released by the fragrance module 300 when being discharged from the upper end of the housing 100, thereby the sterilization aromatic device 1 of the present invention not only has the efficacy of diffusing the fragrance, but also can further achieve the purpose of cleaning and sterilization.

The disclosure is only a preferred embodiment of the utility model and should not be taken as limiting the scope of the utility model, so that the utility model is not limited by the disclosure of the specification and drawings.

Claims

1. A sterilizing aromatic device, comprising:

the air conditioner comprises a machine shell, a clamping component and a fan, wherein the bottom of the machine shell is provided with a plurality of air inlets, the upper part of the machine shell is provided with a plurality of air outlets, and the clamping component is arranged in an accommodating concave part;

the high-performance photocatalyst honeycomb net is arranged in the shell and is arranged between the air inlet holes and the air outlet holes;

the circuit module is arranged in a lower space of the shell and is provided with a fan which is used for generating airflow flowing from the air inlets to the air outlets; and a plurality of light emitting components for emitting light to irradiate the high-efficiency photocatalyst honeycomb net; and

the fragrance module is arranged in the accommodating concave part and is provided with a connecting column which is matched with the buckle component so as to arrange the fragrance module in the accommodating concave part.

2. A sterilizing fragrance device as defined in claim 1 wherein the bottom end of the connecting post has a snap end; the clamping buckle assembly is provided with a clamping jaw which is accommodated in an opening at the upper end of a shell; when the aromatic module is placed in the accommodating concave part, the bottom end of the connecting column pushes the clamping jaw to enable the clamping jaw to descend into the opening of the shell, the clamping jaw is pressed by the inner side wall of the opening to enable the clamping jaw to clamp inwards and be clamped at the upper position of the connecting column, which is positioned at the clamping end, so that the clamping jaw is combined with the connecting column, and the aromatic module is positioned in the accommodating concave part; when the clamping jaws are lifted to be separated from the opening at the upper end of the shell, the clamping jaws can be splayed outwards to release the connecting column, so that the fragrance module can be taken out of the containing concave part.

3. A sterilizing fragrance device as defined in claim 2 wherein the clip assembly further comprises a snap assembly connected to the underside of the jaw, the snap assembly having a catch mechanism and a resilient assembly therein, the catch mechanism in the snap assembly being capable of positioning the snap assembly and the jaw in a lowered position when the jaw presses the snap assembly downwardly such that the jaw is positioned inside the opening in the upper end of the housing; and when the clamping jaw and the pressing elastic component are pressed down again, the clamping mechanism can release the pressing elastic component, so that the pressing elastic component rises and drives the clamping jaw to be separated from the opening at the upper end of the shell.

4. A sterilizing fragrance apparatus as defined in claim 1, 2 or 3 wherein the fragrance module comprises: an upper cover, a bottom cover and a fragrance container; the upper cover and the bottom cover can be combined oppositely, the aromatic container is accommodated between the upper cover and the bottom cover, and the upper cover and the bottom cover are provided with a plurality of ventilation holes, so that the fragrance emitted by the aromatic container can be emitted by the plurality of ventilation holes; the bottom of holding the concave part is provided with a plurality of bleeder vents, and is a plurality of bleeder vent and a plurality of the ventilation hole is linked together, and makes the inside air current of casing can pass through bleeder vent and a plurality of the ventilation hole enters into inside the fragrant module.

5. A sterilizing fragrance means according to claim 4 wherein the cover has an opening such that the upper end of the fragrance container is exposed through the opening.

6. A sterilizing fragrance device as defined in claim 4 wherein the fragrance container has a housing which houses a fragrance material therein and has a gas permeable membrane on one side thereof such that the fragrance of the fragrance material can be emitted through the gas permeable membrane; when the fragrance container is accommodated inside the upper cover and the bottom cover, the air permeable membrane faces the bottom cover so that the air flow entering the plurality of vent holes can contact the air permeable membrane.

7. A sterilized aromatic device according to claim 6, wherein the aromatic container further comprises a sealing film covering the outer side of the gas permeable film, and when the aromatic container is placed in the aromatic module, the sealing film can be torn off to expose the gas permeable film.

8. A sterilizing fragrance means as claimed in claim 4 wherein the plurality of vent holes above the cabinet are arranged in a ring shape around the periphery of the receiving recess.

9. The sterilizing fragrance device of claim 4 wherein the circuit module further comprises a circuit substrate and a battery for supplying power to the fan and the plurality of light emitting elements.

10. A sterilizing fragrance device as claimed in claim 4 wherein the high performance photocatalyst honeycomb net has honeycomb-like mesh openings such that the airflow inside the housing can pass through the high performance photocatalyst honeycomb net; the high-efficiency photocatalyst honeycomb net is provided with a photocatalyst layer.

11. A sterilizing fragrance means according to claim 10 wherein a plurality of the light emitting elements are light emitting diodes capable of emitting light of a wavelength that promotes a catalytic reaction in the photocatalyst layer.

12. A sterilizing fragrance apparatus as defined in claim 11, further comprising a partition plate disposed inside the housing and between the circuit module and the high performance photocatalyst honeycomb net, the partition plate having an opening corresponding to the fan, a plurality of light holes corresponding to the plurality of light emitting devices, and an annular concave surrounding the plurality of light holes.