CN217745104U

CN217745104U - Handheld type deep ultraviolet area light source killing lamp and device

Info

Publication number: CN217745104U
Application number: CN202221295742.8U
Authority: CN
Inventors: 尹君; 黄家新; 康闻宇; 康俊勇
Original assignee: Xiamen University
Current assignee: Xiamen University
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-08
Anticipated expiration: 2032-05-27

Abstract

The utility model relates to a lamp and device that disappears are killed to hand-held type dark ultraviolet area source, the device is handheld bar scanning lamp form, contains: a deep ultraviolet LED array designed by a uniform surface light source is adopted, and an aluminum reflection assembly is nested above the array; a quartz glass sheet is arranged above the reflecting component, so that the device can be effectively protected from being polluted; the lower part of the array substrate is tightly attached to the water-cooling radiating module, and the water-cooling pipeline is connected with the water-cooling tank through two interfaces to be used as a radiator; the device is externally packaged in a strip lamp shape and wraps the internal LED array, the reflecting assembly and the heat dissipation module; the LED array is powered by an external power supply. The utility model provides a reflection assembly embeds reflection recess, corresponding to each LED chip, can improve deep ultraviolet LED's lambert light-emitting angle, obtains nearly parallel deep ultraviolet ray. The device adopts the hand-held type design, can promote the portability under the prerequisite of guaranteeing high-efficient killing.

Description

Handheld type deep ultraviolet area light source sterilizing lamp and sterilizing device

Technical Field

The utility model relates to an ultraviolet sterilization technical field, especially a lamp and device are killed in disappearing of hand-held type dark ultraviolet area source.

Background

The deep ultraviolet LED is a light emitting diode device capable of emitting ultraviolet rays with the wavelength below 300nm, the deep ultraviolet rays can effectively destroy genetic materials of bacteria and viruses to enable the genetic materials to be incapable of being copied and propagated, and the deep ultraviolet LED serving as a light source of the killing device is small in size but low in power of a single chip and cannot meet the killing requirement. Furthermore, the divergence angle is typically > 120 ° due to the high aluminum composition of the material used for the deep ultraviolet chip. For killing work, an excessively large divergence angle means that the lateral power loss condition is serious when the device works under medium and long distances, and the intensity distribution of the formed radiation field is not uniform, so that the reliable surface killing of bacteria and viruses is not facilitated, and therefore, a light condensation method is required to reduce the divergence angle. In a daily killing scene, a portable movable light source is usually needed to kill surfaces to be treated in multiple directions in the environment, so that the killing device needs to be convenient to carry and operate. In order to achieve a short-term, efficient surface destruction, a high optical power density is generally required, i.e. a sufficient radiation dose can be achieved in a short time. The single optical power of the current deep ultraviolet LED chip is usually lower than 100mW, and in order to achieve efficient killing, the array integration of the chips is an effective way. Therefore, portability and high efficiency are considered, and the fact that a radiation field with high optical power density and uniform irradiation height is obtained based on the deep ultraviolet LED array is the key for solving the problem of efficient surface disinfection and application of the deep ultraviolet LED in various public fields.

Most of the existing deep ultraviolet LED products on the market have the problems of low light power and serious energy loss, and can not consider both high killing efficiency and operation portability; moreover, along with operating time increases, its condition of generating heat is serious, and traditional forced air cooling heat dissipation can't reduce equipment temperature.

SUMMERY OF THE UTILITY MODEL

One of the purposes of the utility model is to overcome the defects in the existing deep ultraviolet application technology and provide a hand-held deep ultraviolet area light source sterilizing lamp.

The utility model discloses the purpose is realized through following technical scheme:

a handheld type deep ultraviolet area light source sterilizing lamp comprises a deep ultraviolet LED array substrate, and a deep ultraviolet LED array which is arranged on the deep ultraviolet LED array substrate and consists of a plurality of deep ultraviolet LED chips; the deep ultraviolet LED array covers the reflection assembly, wherein each deep ultraviolet LED chip corresponds to the circular truncated cone-shaped reflection groove on the reflection assembly; a quartz glass sheet is arranged on the reflection assembly; the bottom of the deep ultraviolet LED array substrate is provided with a heat dissipation module, and the heat dissipation module is provided with a water cooling pipeline; the LED array substrate, the deep ultraviolet LED array, the reflecting assembly, the heat dissipation module and the quartz glass sheet are packaged by external packaging; the outer package is connected to a handle.

Preferably, the deep ultraviolet LED array substrate is rectangular.

Preferably, the external packaging main body part is rectangular, the top and the bottom of the external packaging main body part are arc-shaped, and the bottom of the external packaging main body part is provided with a hole for passing through a water cooling pipeline and a power supply circuit.

Preferably, the deep ultraviolet LED arrays are arranged in a rectangle; the intervals between the chips are the same, and the period is 13-16 mm.

Preferably, the reflection assembly is an aluminum reflection assembly, and an aluminum circular groove is arranged in the assembly.

Preferably, the section of the circular truncated cone-shaped groove arranged in the reflection assembly is inverted trapezoid, and the inclination angle of the section is 60-70 degrees.

Preferably, the groove sidewalls have a specular reflectance in the range of 70% to 90% for deep ultraviolet light of 200nm to 300 nm.

Another object of the present invention is to provide a killing device, which comprises the above-mentioned handheld deep ultraviolet area source killing lamp, and an integrated driving power supply and water-cooling case, wherein the power supply and the water-cooling case are provided with a water-cooling box body and a driving power supply for supplying power to the handheld deep ultraviolet area source killing lamp, and the water-cooling box body is connected with a water-cooling pipeline interface of the heat dissipation module through a pipeline; the driving power supply module comprises a large-capacity rechargeable battery.

Preferably, the power supply and the water-cooled cabinet are provided with power adjusting knobs.

Preferably, the power supply and the water-cooling case are handheld or portable.

The utility model provides a hand-held type deep ultraviolet area source device of killing, the device is hand-held type lamp form, and its inside is on deep ultraviolet LED chip array integrated basis, adopts aluminium material specific dimension reflection component's spotlight reinforcing and dwindles light-emitting angle, carries out the secondary grading with the pointolite and turns into the area source, obtains nearly parallel deep ultraviolet ray, and its light-emitting angle can reduce to 40 in. Compare in traditional chemistry kill with the domestic dark ultraviolet LED on the market lamp product that kills, the utility model discloses the device is small, light in weight, and be convenient for carry and operate, innoxious, do not have and remain, can extensively be used for at home or each public place surface to kill and use, especially to the facility and the equipment that can't kill through chemistry such as soft seat, vulnerable apparatus, for example: sofa seats, digital products, etc. The handheld operation can enlarge the killing range and can treat more killing dead angles.

The utility model has the advantages of it is following:

the handheld type deep ultraviolet area light source sterilizing device can adopt 5-150 mW deep ultraviolet LED chips according to a sterilizing scene, the chips are arranged in a rectangular mode, the intervals among the chips are the same, and light emitting is uniform and symmetrical.

The handheld deep ultraviolet disinfection and killing device adopts a reflector condensation principle, and a polished aluminum surface is selected as a reflection assembly, so that the ultraviolet light is ensured to reach sufficient specular reflectivity. The section of the truncated cone-shaped groove is trapezoidal, the inclination angle is between 60 degrees and 70 degrees, the mirror reflectivity of the side wall of the groove to 200nm to 300nm deep ultraviolet light after mechanical polishing is in a range of 70 percent to 90 percent, and simulation verification proves that the size can ensure that the light condensation effect is excellent, most of light power is concentrated within 20 degrees of the light-emitting angle to obtain nearly parallel ultraviolet light, the light energy utilization rate is enhanced, compared with the light intensity of the groove in 40 degrees of the light-emitting angle in the absence of light condensation, the light intensity can be enhanced by 3 to 6 times, wherein the light intensity can be enhanced by 5 to 6 times in 20 degrees of the light-emitting angle.

The handheld deep ultraviolet killing device is externally packaged into a lamp bar shape, the size of the lamp bar is fitted with that of an internal device, the packaging material is made of ABS (acrylonitrile butadiene styrene), the handheld deep ultraviolet killing device is light in volume, has excellent mechanical and thermal properties and the like, and can effectively support and protect the internal device; the bottom of the package is provided with an opening for passing through a water cooling pipeline and a power supply circuit; the back of the packaging part is provided with a handheld handle, so that the packaging part is convenient to carry and carry for killing operation.

This hand-held type dark ultraviolet killing device bottom plate is equipped with water-cooling pipeline, and pipeline diameter 6mm can connect water-cooling tank or other cooling liquid case outward, and the pipeline can cover whole LED array, and the water-cooling heat dissipation is more outstanding than the forced air cooling radiating effect for equipment during operation can keep normal operating temperature, extension LED chip life-span.

Drawings

The present invention will be further explained with reference to the drawings and examples.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of a part of the structure of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention;

FIG. 4 is a schematic diagram of the water cooling tank and the power supply of the present invention;

FIG. 5 is a schematic view of the complete structure of the present invention;

FIG. 6 is a schematic view of a single reflector assembly structure and LED;

FIG. 7 is a schematic cross-sectional view of a single reflector assembly and LED chip;

FIG. 8 is a diagram of the effect of a single deep ultraviolet LED on light not condensed;

FIG. 9 is a diagram of the light-emitting effect of a single deep ultraviolet LED after being condensed;

FIG. 10 is a far field diagram of deep ultraviolet LED light output without a reflective element;

FIG. 11 is a far field diagram of deep ultraviolet LED light output after reflection and condensation;

FIG. 12 is a distribution diagram of the irradiation of a light source module without a reflection assembly on a surface at a distance of 50 mm;

FIG. 13 is a distribution diagram of irradiation at a surface distance of 50mm after reflection condensation;

FIG. 14 is a distribution diagram of irradiation on a surface at a distance of 100mm after reflection condensation.

In the figure: 1. a deep ultraviolet LED array substrate; 2. an aluminum reflective component; 3. a deep ultraviolet LED chip; 4. a heat dissipation module; 5. a water-cooled pipeline interface; 6. external packaging; 7. a handle; 8. a quartz glass sheet; 9. a power supply and a water-cooled cabinet; 10. water-cooling the box body; 11. a power adjustment knob; 12. a power switch button.

Detailed Description

Referring to fig. 1-7, a handheld deep ultraviolet area light source sterilizing lamp includes a deep ultraviolet LED array substrate 1, and a deep ultraviolet LED array formed by a plurality of deep ultraviolet LED chips 3 disposed on the deep ultraviolet LED array substrate 1. The deep ultraviolet LED array is covered in the aluminum reflection assembly 2, wherein each deep ultraviolet LED chip 3 corresponds to a circular truncated cone shaped reflection groove on the aluminum reflection assembly 2. The aluminum reflector module 2 is provided with a quartz glass plate 8. The bottom of the deep ultraviolet LED array substrate 1 is provided with a heat dissipation module 4, and the heat dissipation module 4 is provided with a water cooling pipeline. The LED array substrate 1, the deep ultraviolet LED array, the aluminum reflective member 2, the heat dissipation module 4, and the quartz glass plate 8 are encapsulated by an outer encapsulation 6. The outer package 6 is connected to a handle 7.

The deep ultraviolet LED array substrate 1 is rectangular. The plurality of deep ultraviolet LED chips 3 on the deep ultraviolet LED array substrate 1 are arranged in a rectangular shape, the interval period among the chips is the same, the uniform light emitting and the central symmetry are ensured, the period is 13-15 mm, and the power of a single chip of 5-150 mW can be selected according to different killing scenes.

The main body of the external package 6 is rectangular, the size of the external package is matched with that of the internal LED array and the main body substrate, the top and the bottom of the external package are semicircular, and the bottom of the external package is provided with an opening for passing through a water cooling pipeline and a power supply circuit.

The aluminum reflection assembly 2 is installed above the deep ultraviolet LED array, the top view is rectangular, truncated cone-shaped grooves are formed in the reflection assembly, the grooves modulate light emitted by the deep ultraviolet LEDs, each groove corresponds to each LED chip, and the surfaces of the grooves are made of aluminum. The heat dissipation module 4 is used as a support for internal devices, is made of aluminum or copper, is matched with external packaging in size, and is internally provided with a water cooling pipeline.

As an implementation mode of the utility model, the section of the circular truncated cone-shaped groove arranged in the reflection component is inverted trapezoid, and the inclination angle of the section is 65 degrees; the surface of the groove is also made of aluminum, the light emitted by the deep ultraviolet LED can be modulated after mechanical grinding and polishing, the divergence angle of the deep ultraviolet LED is reduced to be within 40 degrees, meanwhile, the light power at the center is enhanced by 80-100%, and the light condensation details are shown in figures 6 and 7.

As an embodiment of the present invention, the distance between adjacent chips and the inner groove of the reflection assembly is equal, and the array period and the groove cross-sectional dimension are mutually matched and adjusted.

Referring to fig. 4 and 5, a killing device includes the hand-held deep ultraviolet area light source killing lamp, and a power supply and water-cooling cabinet 9, where the power supply and water-cooling cabinet 9 is provided with a water-cooling cabinet 10, and the water-cooling cabinet is connected to a water-cooling pipeline interface 5 of a heat dissipation module 4 through a pipeline; the power supply and water cooling case 9 is also provided with a rechargeable battery power supply which supplies power for the handheld deep ultraviolet surface light source sterilizing lamp. The power and water cooling cabinet 9 is provided with a power adjusting knob 11 and a power switch button 12.

The utility model discloses a theory of operation: when the device is used, the deep ultraviolet LED array substrate 1 is externally connected with a driving circuit, the water-cooling pipeline interface 5 is externally connected with a water-cooling radiating box, and a power supply is connected to supply power through an opening at the bottom of the external package 6; when the device starts to work, the deep ultraviolet rays are condensed through each groove in the reflection assembly 2, the divergence angle can be reduced to be within 40 degrees, the light power is concentrated within 20 degrees of the light-emitting angle, the lateral power loss is greatly reduced, and the light-emitting effect of a single chip is as shown in fig. 8 and 9. The overall light-exit angle improving effect is shown in fig. 10 and 11. When the sterilization lamp works normally, a user can flexibly operate the sterilization lamp by holding the handle 7, and the sterilization lamp is arranged within 10cm of the surface to be sterilized, so that the surface of a sample can achieve the optimal radiation absorption effect. As shown in fig. 12 and 13, after being improved by the reflection assembly, the radiation absorption distribution of the lamp at a distance of 50mm from the surface of the sample is greatly enhanced, and the optical power density in the area of 250mm × 50mm at the center can reach 100W/m2, which is greatly enhanced compared with the optical power density of 40W/m2 at the center of the non-condensing module; the optical power density in the central 250mm 50mm area after the action distance is increased to 10cm can be maintained at a higher level of 65W/cm 2. The utility model discloses compromise high efficiency and convenience, to daily disappear to kill and disappear with the public place and kill, the device can both reach high efficiency in the second level short time, reliably disappear and kill the effect, and the radiation light field is even, has avoided traditional low luminous flux or zebra stripe phenomenon that the lamps and lanterns easily appear that disappear. The utility model discloses it has great meaning to disappear to kill and use in public place, especially to the unable facility and the equipment that disappear through chemistry such as soft seat, vulnerable apparatus, has filled the limitation when killing and using.

The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.

Claims

1. A hand-held type dark ultraviolet area source lamp that kills, its characterized in that: the deep ultraviolet LED array substrate is arranged on the deep ultraviolet LED array substrate, and the deep ultraviolet LED array is composed of a plurality of deep ultraviolet LED chips; the deep ultraviolet LED array covers the reflection assembly, wherein each deep ultraviolet LED chip corresponds to a circular truncated cone-shaped reflection groove on the reflection assembly; a quartz glass sheet is arranged on the reflection assembly; the bottom of the deep ultraviolet LED array substrate is provided with a heat dissipation module, and the heat dissipation module is provided with a water cooling pipeline; the LED array substrate, the deep ultraviolet LED array, the reflecting assembly, the heat dissipation module and the quartz glass sheet are packaged by external packaging; the outer package is connected to a handle.

2. A hand held deep ultraviolet area light source germicidal lamp as claimed in claim 1 wherein: the deep ultraviolet LED array substrate is rectangular.

3. A hand held deep ultraviolet area light source germicidal lamp as claimed in claim 1 wherein: the external packaging main body part is rectangular, the top and the bottom of the external packaging main body part are arc-shaped, and the bottom of the external packaging main body part is provided with a hole for passing through a water cooling pipeline and a power supply circuit.

4. A hand held deep ultraviolet area light source germicidal lamp as claimed in claim 1 wherein: the deep ultraviolet LED arrays are arranged in a rectangular shape; the intervals between the chips are the same, and the period is 13-16 mm.

5. The hand held deep ultraviolet area light source germicidal lamp as claimed in claim 1 wherein: the reflection assembly is an aluminum reflection assembly, and an aluminum circular groove is formed in the aluminum reflection assembly.

6. The hand held deep ultraviolet area light source germicidal lamp as claimed in claim 5 wherein: the section of a circular groove arranged in the reflection assembly is inverted trapezoid, and the inclination angle of the section is 60-70 degrees.

7. The hand held deep ultraviolet area light source germicidal lamp as claimed in claim 5 wherein: the specular reflectivity of the groove sidewall to 200nm to 300nm deep ultraviolet light is in the range of 70% to 90%.

8. A killing device is characterized by comprising the handheld deep ultraviolet area light source killing lamp as claimed in any one of claims 1 to 7, and a power supply and water cooling cabinet, wherein the power supply and water cooling cabinet is provided with a water cooling box body and a driving power supply for supplying power to the handheld deep ultraviolet area light source killing lamp, and the water cooling box body is connected with a water cooling pipeline interface of a heat dissipation module through a pipeline; the driving power supply module comprises a rechargeable battery.

9. A killing apparatus as claimed in claim 8, wherein the power supply and water-cooled housing are provided with power adjustment knobs.

10. A killing apparatus as claimed in claim 8, wherein the power supply and water cooled housing is hand held or portable.