CN115252839B

CN115252839B - Sterilizing lamp and light source structure thereof

Info

Publication number: CN115252839B
Application number: CN202210849163.1A
Authority: CN
Inventors: 曹巍; 施敏; 马安勤; 包而宁
Original assignee: Starlight Shanghai Industrial Co ltd
Current assignee: Starlight Shanghai Industrial Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-10-20
Anticipated expiration: 2042-07-19
Also published as: CN115252839A

Abstract

A sterilizing lamp and a light source structure thereof. The light source structure includes: a housing having a chamber; a light source disposed within the chamber; the filtering component is arranged on the cover body and is used for filtering light rays generated by the light source; wherein the surface of the filtering component is a curved surface protruding outwards; the light beam angle of the light generated by the light source is larger than 60 degrees after the light is filtered by the filtering component. By adopting the scheme, the coverage of light can be improved, the coverage rate is wider, and the disinfection effect of the disinfection lamp can be improved.

Description

Sterilizing lamp and light source structure thereof

Technical Field

The invention relates to the technical field of lamps, in particular to a sterilizing lamp and a light source structure thereof.

Background

The far ultraviolet rays with the wavelength of 222nm can not only sterilize, but also ensure the safety to human bodies because the far ultraviolet rays cannot penetrate the skin surface or eyes.

Either the gas discharge (excimer light source) or the LED can generate far ultraviolet with a main peak of 222nm, but at the same time generate clutter ultraviolet with trace other wave bands (such as ultraviolet with a wavelength between 230nm and 250 nm). These clutter ultraviolet rays are a major hazard to the human body. Thus, it is necessary to filter clutter on the 222nm light source using a filter to ensure that the device emits filtered 222nm ultraviolet light.

But the radiation flux of the filter disc of the existing sterilizing lamp is smaller, and the sterilizing effect is poorer.

Disclosure of Invention

The invention aims to solve the problems that: how to improve the sterilizing effect of the sterilizing lamp.

In order to solve the above problems, an embodiment of the present invention provides a light source structure of a sterilizing lamp, the light source structure including:

a housing having a chamber;

a light source disposed within the chamber;

the filtering component is arranged on the cover body and is used for filtering light rays generated by the light source;

wherein the surface of the filtering component is a curved surface protruding outwards; the light beam angle of the light generated by the light source is larger than 60 degrees after the light is filtered by the filtering component.

Optionally, the filter component comprises: the folding plate comprises more than three folding plates which are sequentially connected to form a curved surface protruding outwards.

Optionally, the filter component comprises: the three folding pieces are arranged in an inverted V shape.

Optionally, the three-piece flap comprises: the first folding piece, the second folding piece connected with one end of the first folding piece, the third folding piece connected with the other end of the second folding piece; wherein the second tab is parallel to the light source.

Optionally, the three or more flaps are integrally formed.

Optionally, among the three or more flaps, adjacent flaps are connected by a flap connecting portion.

Optionally, the filter component comprises: the surface of each protruding part is a curved surface protruding outwards, and the protruding parts are connected with each other to form a continuous whole.

Optionally, each of the protruding portions has a curved surface protruding outward.

Optionally, the bottom end of each protruding part is a regular polygon, and the protruding parts are connected through the edges of the regular polygon.

The embodiment of the invention also provides a sterilizing lamp, which comprises a plurality of light source structures of any one of the sterilizing lamps, wherein light rays generated by the light source structures of the sterilizing lamps cover 360-degree full angles.

Compared with the prior art, the technical scheme of the embodiment of the invention has the following advantages:

by applying the scheme of the invention, as the surface of the filter component is the outwards protruding curved surface, compared with the surface of the filter component which is set to be a single plane, the area of the surface of the filter component is increased, and then the light beam angle of the light generated by the light source can be larger than 60 degrees after the light is filtered by the filter component, so that the radiation flux of the filter component is increased, and the disinfection effect is improved.

Drawings

Fig. 1 is a schematic perspective view of a sterilizing lamp;

FIG. 2 is a schematic view of a light source structure in a housing of a germicidal lamp in accordance with an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along line A-A' of FIG. 2;

FIG. 4 is a schematic view of a surface of another light source structure according to an embodiment of the present invention;

fig. 5 is a schematic view of a light beam angle of an illumination device for realizing 360 ° full coverage in an embodiment of the present invention.

Detailed Description

The existing sterilizing lamp is internally provided with a plurality of light source structures.

Fig. 1 is a schematic structural diagram of a light source structure in a conventional germicidal lamp. Referring to fig. 1, the light source structure may include: a housing 11, a light source 12 positioned within the housing, and a filter 13 disposed over the housing.

In practical applications, the surface of the filter 13 is a plane, and the beam angle of the light generated by the light source 12 is typically 60 ° or less after the light is filtered by the filter 13, so that all the light source structures of the sterilizing lamp cannot cover 360 °. When the sterilizing lamp is used for sterilizing, dead angles exist, and the sterilizing effect is poor.

In order to improve the killing effect, the existing common methods are as follows: the sterilizing lamp is rotated by the external rotating device to achieve the sterilizing effect of 360 degrees without dead angles, which clearly greatly increases the sterilizing cost.

In order to solve the problems, the invention provides a light source structure of a sterilizing lamp, in the light source structure, as the surface of a filtering component is a curved surface protruding outwards, compared with the surface of the filtering component which is arranged as a single plane, the area of the surface of the filtering component is increased, and then the light beam angle of the light generated by the light source can be larger than 60 degrees after being filtered by the filtering component, so that the radiation flux of the filtering component is increased, and the sterilizing effect is improved.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

The embodiment of the invention provides a light source structure of a sterilizing lamp. Fig. 2 is a schematic view of the position of the light source structure 20 in the housing 1 of the germicidal lamp. Fig. 3 is a schematic cross-sectional view taken along line A-A' of fig. 2.

Referring to fig. 2 and 3, the light source structure 20 may include:

a housing 210 having a chamber;

a light source 220 disposed within the chamber;

a filtering member 230 disposed on the cover for filtering the light generated from the light source 220;

wherein the surface of the filtering part 230 is a curved surface protruding outwards; the light beam angle of the light generated by the light source 220 is greater than 60 degrees after being filtered by the filtering component 230.

Because the surface of the filtering component 230 is a curved surface protruding outwards, the beam angle of the light generated by the light source 220 after being filtered by the filtering component 230 is greater than 60 degrees, namely, the beam angle is increased, so that the radiant flux of the filtering component 230 is increased, the dead angle of the sterilizing lamp is reduced, even no dead angle exists, and the sterilizing effect can be effectively improved.

In a specific implementation, after the light generated by the light source 220 is filtered by the filtering component 230, ultraviolet rays with the wavelength of 222nm can be obtained, and ultraviolet rays with other wavebands, such as ultraviolet rays with the wavelength of 254nm, can be obtained, so that human-machine coexistence can be realized, and the use safety of the whole product is improved. The beam angle of the filter 230 may be 60 degrees, 70 degrees, or 80 degrees, or may be up to 110 degrees or 120 degrees or 130 degrees, which is not particularly limited.

In a specific implementation, the surface of the filtering component is a curved surface protruding outwards. The curved surface refers to a motion track of a straight line or a curve under a certain constraint condition. This straight or curved line of motion is called the generatrix of the curved surface.

The curved surface comprises a regular curved surface (namely a curved surface formed by the irregular movement of the generatrix) and also comprises an irregular curved surface (namely a curved surface formed by the irregular movement of the generatrix). The regular curved surface can comprise a cylindrical surface, a conical surface, a spherical surface, a toroidal surface and the like. The specific shape of the curved surface is not limited as long as the curved surface protrudes outward and can meet the beam angle requirement. Wherein the outward protrusions, i.e. out of the light source structure.

In one embodiment of the invention, the filter element comprises: the folding plate comprises more than three folding plates which are sequentially connected to form a curved surface protruding outwards. The folding piece can be a filter piece with a plane surface. The filter discs are sequentially connected and fixed on the cover body.

The existing illumination device on the market has small beam angle and blind area, but adopting the illumination device in the embodiment of the invention creatively uses the polyhedral structure, can effectively increase the area of the filtering component, increase the beam angle, finally increase the radiation flux, even if the radiation range is widened，Even can reach 360 full coverage's scope, satisfy the requirement of maximum radiant flux, promote lighting device's performance.

In particular implementations, the area of each flap may be the same or different. The included angles between the adjacent flaps may be equal or unequal, and are not particularly limited.

In one embodiment, the filter element may be comprised of three flaps. The three folding sheets are arranged in an inverted V shape.

Referring to fig. 2, the filter member is composed of a first flap 2301, a second flap 2302, and a third flap 2303. The three flaps are of equal area. The first folding piece 2301 and the third folding piece 2303 are symmetrically distributed on two sides of the second folding piece, so that the three folding pieces are in inverted V-shaped arrangement.

In an embodiment of the present invention, in order to maximize the radiant flux of the filter element, the second flap 2302 may be disposed parallel to the light source 220, where the light receiving area of the filter element is maximized, and the radiant flux is maximized. At this time, the beam angle may be 120 degrees.

In particular implementations, the plurality of filter sheets that make up the filter element may be formed in a variety of ways.

In one embodiment, the plurality of filter sheets constituting the filter member are integrally formed. In this case, the plurality of filter sheets can be integrally formed without the need for connection of other connection members.

In another embodiment, the filter element further comprises a flap connecting portion, wherein adjacent flaps among the plurality of filter sheets constituting the filter element are connected by the flap connecting portion. For example, referring to fig. 2, a first tab 2301 and a second tab 2302 are connected by a first tab connection portion 2304. The second flap 2302 and the third flap 2303 are connected by a second flap connecting portion 2305.

In a specific implementation, the structure of the flap connecting portion is not limited, as long as the adjacent flaps can be fixedly connected, and the requirement of an included angle between the adjacent flaps can be met.

In another embodiment of the present invention, referring to fig. 4, the filtering part may include: the surface of each protrusion 41 is a curved surface protruding outwards, and the protrusions are connected to form a continuous whole. In the embodiment of the present invention, the filter member having such a structure is referred to as a compound-eye mode filter member. The adoption of the compound eye mode filter component can enable the radiation wrapping surface to be more complete, and the safety is enhanced.

In other embodiments, the surface of the protruding portion 41 may be non-curved, which is not particularly limited.

In the embodiment, the number of the protrusions constituting the filter member is not limited, and may be specifically determined according to the size of the area of each protrusion. The projections constituting the filter element are joined to each other seamlessly to form a continuous whole which also has a curved surface protruding outward.

That is, by providing the protruding portion, not only the protruding portion itself has a curved surface protruding outward, but also the entirety of the protruding portion connected to each other has a curved surface protruding outward. In this way, the beam angle of each of the protrusions that make up the filter element increases, and the curved arrangement of the filter element itself further increases the beam angle of the filter element.

The filter component formed by a plurality of protruding parts is equivalent to a compound eye structure, so that the beam angle of the filter component is effectively increased, and the radiation flux requirement can be met.

In a specific implementation, each of the protruding portions may have a curved surface protruding outward, which may be a spherical surface, and the light receiving area of the spherical surface is the largest and the beam angle is the largest with respect to other shapes of tracks.

In a specific implementation, the bottom end of each protruding part is a regular polygon, and the protruding parts are connected through the edges of the regular polygons.

For example, referring to fig. 4, the bottom ends of the protrusions 41 are pentagons, i.e., the bottom end of each protrusion is composed of five sides, each side connecting one adjacent protrusion. In this way, around each protrusion, five protrusions may be connected, as the area permits. The beam angle may be greater than 120 deg..

It should be noted that, in the specific implementation, the structure of the filtering component is not limited to the description in the foregoing embodiment, and will not be repeated herein.

In practice, since the filter element is mounted on the housing, as the structure of the filter element changes, the structure of the housing will also change, particularly the location on the housing at which the filter element is mounted.

For example, when the filter element is formed by connecting three rectangular folded sheets, the position on the cover body for installing the filter element is matched with the structure of the filter element, and the filter element is also in an inverted V shape.

For another example, when the filter element is formed of a plurality of protrusions, the position of the cover for mounting the filter element should match the shape of the overall curved surface formed by the plurality of protrusions.

In a specific implementation, the filter component may be mounted on the cover body by a clamping manner, or may be mounted on the cover body by a sticking manner, which is not particularly limited.

In a specific implementation, the light source may be an excimer light source.

In particular, the light source may comprise a lamp tube and two electrodes located within the lamp tube. Each electrode is connected to a power source by a respective external lead. The lamp tube is filled with dischargeable gas, when the electrodes are powered on through the outer leads, electric arcs are generated between the two electrodes, and the electric arcs excite the dischargeable gas to generate corresponding excimer molecules. The excited excimer molecules emit ultraviolet light at 222nm or 254nm when they transition down to the ground state. Wherein, the ultraviolet rays with the wavelength of 222nm are harmless to human skin and eyes and safer to sterilize while ensuring the sterilization effect. Ultraviolet rays of 254nm can penetrate human skin while sterilizing, are harmful to human body and eyes, and are commonly used in unmanned environments.

In a specific implementation, the housing may include a first component and a second component that are coupled to opposite ends of the lamp and may secure the lamp within the cavity of the housing. The cover may further include: and the filter disc is fixed on the third part above the lamp tube and forms a cavity with the third part, and the lamp tube is arranged in the cavity. The third member may be used for supporting the lamp vessel.

In a specific implementation, the light source may be another type of light source, which is not limited herein.

The embodiment of the invention also provides a sterilizing lamp, which can comprise the light source structure.

In a specific implementation, the number of the light source structures in the sterilizing lamp is not limited, and the number of the light source structures can be only one, or can be two or more than three.

In an embodiment of the invention, the number of the light source structures in the sterilizing lamp is three, and the three light source structures may be arranged in a triangle. The beam angle of each light source structure can be 120 degrees, so that the beam angles of the three light source structures can cover 360 degrees, and the sterilizing lamp can achieve the sterilizing effect without dead angles in all directions.

For example, referring to fig. 5, three light source structures, namely, a first light source structure 1, a second light source structure 2, and a third light source structure 3, are provided in the lighting device. The beam angle of each light source structure is 120 degrees. As can be seen from fig. 3, all light rays emitted from the light source structure achieve 360 ° full coverage.

In a specific implementation, the specific structures of the light source structures in the same sterilizing lamp may be the same or different, and the specific structures are not limited herein.

In the implementation, the number and the specific positions of the light source structures can be set according to the beam angle of each light source structure, so that the sterilizing effect of the sterilizing lamp is improved.

As can be seen from the above, with the light source structure and the sterilizing lamp of the present invention, the radiation flux of the single light source structure can be increased and the sterilizing effect of the single light source structure can be improved due to the increase of the beam angle of the single light source structure. When a plurality of light source structures are arranged in the sterilizing lamp, the sterilizing lamp can achieve the sterilizing effect without dead angles in all directions by adjusting the positions and the number of the plurality of light source structures, and a rotating device is not needed, so that the sterilizing cost and the sterilizing complexity are reduced.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention should be assessed accordingly to that of the appended claims.

Claims

1. A light source structure of a germicidal lamp, comprising:

a housing having a chamber;

a light source disposed within the chamber;

the filtering component is arranged on the cover body and is used for filtering the wavelength of light generated by the light source;

wherein the surface of the filtering component is a curved surface protruding outwards; after the light generated by the light source is filtered by the filtering component, the beam angle is larger than 60 degrees;

the filter element comprises: the surface of each protruding part is a curved surface protruding outwards, and the protruding parts are connected with each other to form a continuous whole.

2. The light source structure of a germicidal lamp as recited in claim 1, wherein each of said protrusions has an outwardly projecting spherical surface.

3. The luminaire structure of claim 2, wherein the bottom end of each of the protruding portions is a regular polygon, and the protruding portions are connected by sides of the regular polygon.

4. A germicidal lamp, characterized by comprising a plurality of light source structures of the germicidal lamp as claimed in any one of claims 1 to 3, wherein the light rays generated by the light source structures of the plural germicidal lamps cover 360 ° full angle.