CN114617994A - Scanning sterilization LED array light source and portable sterilization and disinfection device - Google Patents

Abstract

The invention provides a scanning type sterilization LED array light source which comprises a light-gathering substrate and a plurality of light-emitting elements, wherein the light-emitting elements are arranged on the light-gathering substrate at intervals, each light-emitting element can move on the light-gathering substrate, the light-emitting elements are enabled to emit light to form an irradiation light spot in a mode of moving the light-emitting elements, the irradiation light spot is provided with a first light spot and a second light spot, and the optical power density of the first light spot is higher than that of the second light spot. Borrow this setting, can improve the luminous power density of the LED array light source that disinfects of scanning formula, need not with the help of secondary optical element, alright in order to promote the luminous power density of first facula, accomplish the disinfection work to appointed region fast to the use quantity of reducible light emitting element of current sterilizing equipment, reduce radiator weight and size, so that make portable sterilizer, reduce portable disinfection device's volume.

Description

Scanning sterilization LED array light source and portable sterilization and disinfection device

technical field

The invention relates to the technical field of sterilization and disinfection, in particular to a scanning type sterilization LED array light source and a portable sterilization and disinfection device.

Background technique

In daily life or hospital wards, there are a large number of bacteria in various places that people frequently come into contact with, such as Shigella, Escherichia coli, Salmonella typhi, Staphylococcus aureus, Streptococcus pyogenes, Candida albicans, etc.; in addition to bacteria , There are also a large number of viruses that people are very easy to come into contact with, such as cold viruses, influenza viruses, and new coronaviruses. These bacteria and viruses can cause people to suffer from various diseases and even death.

Traditional sterilization and disinfection devices have gradually been applied, such as mercury lamps, ozone generators, etc., but these devices have some drawbacks. For example, the commonly used mercury lamps contain harmful heavy metal mercury, which has been prohibited from production and use by international conventions; ozone The device is highly irritating to the human body and harmful to the body, and the use time and scope are limited. In recent years, the huge application value of ultraviolet LEDs, especially deep ultraviolet LEDs, has attracted great attention and has become a new research hotspot.

UV Light Emitting Diode (UV-LED) is a solid-state semiconductor device that can directly convert electrical energy into ultraviolet light. With the development of technology, ultraviolet light-emitting diodes have broad market application prospects in the fields of biomedicine, anti-counterfeiting identification, purification (water, air, etc.), computer data storage and military. Compared with sterilization and disinfection devices such as mercury lamps and ozone generators, UV LED sterilization devices have many advantages such as high efficiency, wide sterilization, safety and environmental protection, energy saving, long life, and low maintenance costs.

However, the optical power density of the existing ultraviolet LED sterilization device is poor, and it takes a long time (ranging from several minutes to tens of minutes) of irradiation to ensure sufficient sterilization and disinfection effect, which is extremely useful in mobile scanning sterilization. It increases the difficulty of sterilization operation. In order to improve this problem, people in the industry usually assemble additional secondary optical components such as reflectors and lenses, and use the use of secondary optical components to achieve light concentration and increase optical power density, thereby improving the sterilization and disinfection effect. First of all, it is difficult to find materials with high reflectivity for deep ultraviolet light. Second, the additionally assembled lens will increase the overall length of the UV LED sterilization device, increase the volume of the sterilization device, be inconvenient to carry and use, and also increase the production cost, and because The increase of the overall length also increases the absorption of the emitted deep ultraviolet light by the secondary optical element, which is not conducive to sterilization.

Therefore, the main purpose of the present invention is to provide a scanning sterilization LED array light source and a portable sterilization and disinfection device to solve the above problems.

SUMMARY OF THE INVENTION

The invention provides a scanning sterilization LED array light source, which comprises a light-condensing substrate and a plurality of light-emitting elements.

A plurality of light-emitting elements are arranged on the light-condensing substrate at intervals. Each light-emitting element can be moved on the light-condensing substrate, and by moving the plurality of light-emitting elements, the plurality of light-emitting elements emit light to form an irradiation spot. The irradiation light spot has a first light spot and a second light spot, and the optical power density of the first light spot is higher than that of the second light spot.

In one embodiment, the first light spot is a strip-shaped light spot.

In one embodiment, the strip-shaped light spot has an upper boundary and a lower boundary, and the distance from the upper boundary to the lower boundary is greater than or equal to 10 cm.

In one embodiment, the light-concentrating substrate has opposite arc-shaped inner surfaces and arc-shaped outer surfaces, and the plurality of light-emitting elements are disposed on the arc-shaped inner surface of the light-concentrating substrate.

In one embodiment, the light-concentrating substrate includes an arc-shaped bottom plate and a plurality of arc-shaped support members, and the plurality of arc-shaped support members are arranged on the arc along a first direction at intervals of a first preset distance. The plurality of light-emitting elements are distributed on the plurality of arc-shaped supports, and each light-emitting element can move on the arc-shaped support where it is located.

In one embodiment, the scanning sterilization LED array light source further includes a pulley structure and a sliding card interface, the pulley structure is arranged inside the arc-shaped bottom plate, and the sliding card interface is arranged on the same arc-shaped support member. between two adjacent light-emitting elements.

In one embodiment, the plurality of light-emitting elements are distributed on the light-concentrating substrate in an umbrella shape.

In one embodiment, the plurality of light emitting elements are arranged on the light condensing substrate in a matrix form.

In one embodiment, each light emitting element is a deep ultraviolet light emitting element.

The present invention also provides a portable sterilization and disinfection device, which includes the scanning sterilization LED array light source described in any one of the foregoing embodiments.

One advantage of the present invention is to provide a scanning sterilization LED array light source and a portable sterilization and disinfection device, which can increase the optical power density of the scanning sterilization LED array light source, and can increase the intensity of the first light spot without the aid of secondary optical elements. The optical power density can quickly complete the sterilization and disinfection of the designated area, and compared with the existing sterilization device, it can reduce the number of light-emitting elements used, and reduce the weight and size of the radiator, so as to facilitate the production of portable sterilizers and reduce the size of portable sterilization and disinfection devices. volume of.

Another advantage of the present invention is to provide a scanning sterilization LED array light source and a portable sterilization and disinfection device. By arranging the light-emitting elements on the arc-shaped inner surface of the light-condensing substrate, the inclination angle of the light-concentrating substrate is used to gather each light-emitting element. The central light spot emitted by the element enables the strip-shaped light spot in the irradiation spot emitted by the scanning sterilization LED array light source to have high optical power density, which can quickly complete the sterilization and disinfection of the designated area.

Other features and advantages of the present invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the invention. The objectives and other advantageous effects of the present invention may be realized and attained by the structure particularly pointed out in the description, claims and the like.

Description of drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative work; the positional relationship described in the drawings in the following description, Unless otherwise specified, the directions of the components shown in the figures are used as the reference.

1 is a schematic structural diagram of a scanning sterilization LED array light source provided by an embodiment of the present invention;

Fig. 2 is a cross-sectional schematic view taken along the interception line A-A of Fig. 1;

3 is a schematic diagram of the irradiation spot of the scanning sterilization LED array light source of the present invention.

Reference number:

10-scanning sterilization LED array light source; 12-concentrating substrate; 122-arc inner surface; 124-arc outer surface; 14-light-emitting element; 16-arc-shaped bottom plate; 18-arc-shaped supporter; Structure; 22-sliding card interface; 30-illumination spot; 31-first spot; 32-second spot; 311-upper boundary; 312-lower boundary; L-first preset distance; X-first direction; S - Center spot; F - focal plane.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all of the embodiments; the technical features designed in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other; based on the embodiments of the present invention, this All other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be understood that the terms "center", "lateral", "top", "bottom", "left", "right", "vertical", "horizontal", "top", " The orientation or positional relationship indicated by "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated device or The components must have a particular orientation, or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first" or "second" may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more. In addition, the term "comprising" and any variations thereof mean "at least including".

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the exemplary embodiments. As used herein, the singular forms "a", "an" and "an" are intended to include the plural unless the context clearly dictates otherwise. It should also be understood that the terms "comprising" and/or "comprising" as used herein specify the presence of stated features, integers, steps, operations, units and/or components, but do not preclude the presence or addition of one or more Other features, integers, steps, operations, units, components and/or combinations thereof.

Please refer to FIGS. 1 , 2 and 3. FIG. 1 is a schematic structural diagram of a scanning sterilization LED array light source 10 according to an embodiment of the present invention. A schematic diagram of the irradiation spot 30 of the scanning sterilization LED array light source 10 of the present invention. To achieve at least one of the aforementioned advantages or other advantages, an embodiment of the present invention provides a scanning sterilization LED array light source 10 . As shown in the figure, the scanning sterilization LED array light source 10 includes a light-condensing substrate 12 and a plurality of light-emitting elements 14 .

The plurality of light emitting elements 14 are provided on the light condensing substrate 12 at intervals. Wherein, each light-emitting element 14 can be moved on the light-condensing substrate 12, and by moving the plurality of light-emitting elements 14, the position of the light-emitting element 14 can be adjusted, so that the plurality of light-emitting elements 14 can be moved to an appropriate position, so that the plurality of light-emitting elements 14 can be moved to an appropriate position. 14 emits light to form an illumination spot 30 . The irradiation light spot 30 has a first light spot 31 and a second light spot 32 , and the optical power density of the first light spot 31 is higher than that of the second light spot 32 . By virtue of the high optical power density of the first light spot 31 , the sterilization and disinfection of the designated area can be quickly completed, and the sterilization and disinfection work can be completed within an irradiation time of less than 1 s.

The existing ultraviolet LED sterilization device focuses too much on improving the sterilization and antivirus effect of the overall irradiation spot 30 , for example, by arranging a large number of light-emitting elements to increase the optical power density of the entire spot, which greatly increases the cost. However, the present invention focuses on improving the optical power density of the first light spot 31 in the irradiation light spot 30, especially in the field of mobile scanning sterilization, the first light spot 31 is a belt-shaped light spot, and its sterilization effect is better. For example, to sterilize the entire wall, you only need to align the strip-shaped light spot on the wall, and then scan the serpentine, S-shaped, etc., and quickly sterilize the sterilization to complete the sterilization work. Preferably, the strip-shaped light spot has an upper boundary 311 and a lower boundary 312, and the distance from the upper boundary 311 to the lower boundary 312 is greater than or equal to 10 cm.

In one embodiment, as shown in the figures, the concentrating substrate 12 has opposing arcuate inner surfaces 122 and arcuate outer surfaces 124 . As shown in FIG. 2 , the side recessed toward the inside of the substrate is an arc-shaped inner surface 122 . A plurality of light-emitting elements 14 are arranged on the arc-shaped inner surface 122 of the light-condensing substrate 12 at intervals, and the size of each light-emitting element 14 is basically the same. Therefore, each light-emitting element 14 has its own inclination due to different positions. Therefore, in FIG. 1, compared with the light-emitting element 14 at the center, the longitudinal lengths of the light-emitting elements 14 on the upper and lower sides will be correspondingly reduced, and the lateral lengths of the light-emitting elements 14 on the left and right sides will be correspondingly reduced. That is to say, not only in the longitudinal section shown in FIG. 2 , the surface of the light-condensing substrate 12 is arc-shaped, but also in the lateral cross-section, the surface of the light-condensing substrate 12 is also arc-shaped. With this arrangement, the inclination angle of the light-condensing substrate 12 is used to achieve that the central light spots S emitted by the light-emitting elements 14 converge on the same focal plane F (as shown in FIG. 2 ), so that the irradiation light spots emitted by the scanning sterilization LED array light source 10 The strip-shaped light spot (the first light spot 31 ) in 30 has high optical power density, which can quickly complete the sterilization and disinfection of the designated area.

Further description, since each light-emitting element 14 can move on the light-condensing substrate 12, the position of each light-emitting element 14 on the arc-shaped inner surface 122 can be changed by means of movement, thereby changing the light-emitting angle of each light-emitting element 14, that is, The light-emitting angle of each light-emitting element 14 can be adjusted independently, so as to adapt to various scene requirements. For example, when the scanning sterilization LED array light source 10 is about 1m away from the wall to be sterilized, the length of the first light spot 31 (such as the length from the upper boundary 311 to the lower boundary 312) is formed by changing the light-emitting angle of each light-emitting element 14. The distance) range is about 25cm, which can quickly scan to complete the sterilization and disinfection of the entire wall; when the scanning sterilization LED array light source 10 is about 0.5m away from the desktop to be sterilized, the light-emitting angle of each light-emitting element 14 can be changed by changing the light-emitting angle. The length range of the formed first light spot 31 is about 15 cm, and the sterilization and disinfection of the entire desktop is completed by rapid scanning.

Preferably, the plurality of light emitting elements 14 are distributed on the light condensing substrate 12 in an umbrella shape, so as to increase the optical power density of the first light spot 31 .

Specifically, the scanning sterilization LED array light source 10 may further include a pulley structure 20 and a sliding card interface 22 , and the concentrating substrate 12 includes an arc-shaped bottom plate 16 and a plurality of arc-shaped support members 18 . The plurality of arc-shaped support members 18 are arranged on the arc-shaped bottom plate 16 along the first direction X with a first predetermined distance L as an interval. The range of the first preset distance L is 1˜100 mm, and the first direction X is perpendicular to the length direction of the arc-shaped support member 18 . A plurality of light-emitting elements 14 are distributed on a plurality of arc-shaped supports 18, and each light-emitting element 14 can move on the arc-shaped support 18 where it is located. The pulley structure 20 is disposed inside the arc-shaped bottom plate 16 for moving each light-emitting element 14 . The sliding card interface 22 is disposed between two adjacent light-emitting elements 14 on the same arc-shaped support 18 , and is used to fix the light-emitting element 14 after the light-emitting element 14 is moved. In other words, each light-emitting element 14 moves on the arc-shaped support 18 through the pulley structure 20 and the sliding card interface 22, so that the angle of each light-emitting element 14 can be adjusted independently.

In one embodiment, the light emitting element 14 is a deep ultraviolet light emitting element. The deep ultraviolet light-emitting element can emit ultraviolet rays with wavelengths between 200 nm and 230 nm to enhance the sterilization and disinfection effect.

In addition, the scanning sterilization LED array light source 10 can also improve the optical power density of the strip-shaped light spot by arranging a plurality of light-emitting elements 14 on the light-condensing substrate 12 in a matrix form. For example, taking eight light-emitting elements 14 as an example, they can be arranged in a 2×4 matrix, so that the optical power density of the strip-shaped light spot in the formed irradiation light spot 30 can be increased.

An embodiment of the present invention provides a portable sterilization and disinfection device, which adopts the scanning sterilization LED array light source 10 as described in any of the foregoing embodiments.

To sum up, the present invention provides a scanning sterilization LED array light source 10 and a portable sterilization and disinfection device, which can improve the optical power density of the scanning sterilization LED array light source 10 without the use of secondary optical elements. The optical power density of the first light spot 31 can quickly complete the sterilization and disinfection of the designated area, and compared with the existing sterilization device, the number of light-emitting elements used, the weight and size of the radiator can be reduced, so that it can be easily made into a portable sterilizer. The volume of the portable sterilization unit.

In addition, those skilled in the art should understand that although there are many problems in the prior art, each embodiment or technical solution of the present invention can be improved in only one or several aspects, without simultaneously solving the problems in the prior art or All technical issues listed in the background art. Those skilled in the art should understand that anything not mentioned in a claim should not be construed as a limitation on the claim.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A scanning formula LED array light source that disinfects which characterized in that: the scanning type LED array light source for sterilization comprises:

a light-condensing substrate;

a plurality of light emitting elements disposed at intervals on the light collecting substrate;

the light-emitting elements can move on the light-gathering substrate, and the light-emitting elements can emit light to form an illumination light spot in a mode of moving the light-emitting elements, wherein the illumination light spot is provided with a first light spot and a second light spot, and the optical power density of the first light spot is higher than that of the second light spot.

2. The scanning type LED array light source for sterilization according to claim 1, wherein: the first light spot is a strip-shaped light spot.

3. The scanning germicidal LED array light source as claimed in claim 2 wherein: the strip-shaped light spot is provided with an upper boundary and a lower boundary, and the distance from the upper boundary to the lower boundary is more than or equal to 10 cm.

4. The scanning type LED array light source for sterilization according to claim 1, wherein: the light-gathering substrate is provided with an arc-shaped inner surface and an arc-shaped outer surface which are opposite, and the plurality of light-emitting elements are arranged on the arc-shaped inner surface of the light-gathering substrate.

5. The LED array light source for scanning sterilization as claimed in claim 4, wherein: the light-gathering substrate comprises an arc-shaped bottom plate and a plurality of arc-shaped supporting pieces, wherein the arc-shaped supporting pieces are arranged on the arc-shaped bottom plate along a first direction at intervals of a first preset distance, the light-emitting elements are distributed on the arc-shaped supporting pieces, and each light-emitting element can move on the arc-shaped supporting piece where the light-emitting element is located.

6. The LED array light source for scanning sterilization as claimed in claim 5, wherein: the scanning type LED array light source that disinfects still includes pulley structure and slip card interface, the pulley structure set up in the inside of arc bottom plate, the slip card interface sets up between two adjacent light-emitting component that are located same arc support piece.

7. The LED array light source for scanning sterilization as claimed in claim 4, wherein: the plurality of light-emitting elements are distributed on the light-gathering substrate in an umbrella shape.

8. The scanning type LED array light source for sterilization according to claim 1, wherein: the plurality of light emitting elements are arranged in a matrix on the light collecting substrate.

9. The scanning type LED array light source for sterilization according to claim 1, wherein: each light emitting element is a deep ultraviolet light emitting element.

10. A portable sterilization and disinfection device is characterized in that: a scanning germicidal LED array light source as claimed in any of claims 1-9 is used.

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