CN217138714U

CN217138714U - Zooming type dimming module and handheld ultraviolet disinfection instrument

Info

Publication number: CN217138714U
Application number: CN202220787981.9U
Authority: CN
Inventors: 徐远炬
Original assignee: Kongjing Vision Intelligent Technology Co ltd
Current assignee: Kongjing Vision Intelligent Technology Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-08-09
Anticipated expiration: 2032-04-06

Abstract

The utility model provides a formula of zooming module of adjusting luminance, including light-passing board and light-passing board zoom mechanism, light-passing board zoom mechanism around swing joint movable plate and decide the board in proper order, light-passing board fixed mounting is on light-passing board zoom mechanism's movable plate. The guide block on the movable plate can move along the elongated guide groove of the fixed plate under stress, so that the distance between the movable plate and the fixed plate can be adjusted. The utility model also provides a hand-held type ultraviolet disinfection appearance, it is including the shell body, locate ultraviolet disinfection module on the shell body and locate the radiating module in the shell body to and foretell formula of zooming module of adjusting luminance. The burnt formula module of adjusting luminance passes through the fixed plate fixed mounting of light-passing board zoom mechanism in the place ahead of ultraviolet disinfection module on the shell body, makes the light-passing board locate on the front of LED ultraviolet lamp plate with anti-light cup and LED ultraviolet lamp pearl shroud. The utility model discloses rationally distributed, compact structure have the light-passing board and the characteristic of the regulation of can zooming of lamp pearl interval, and intensity of disinfecting is wide with effectual, use scene scope.

Description

Zooming type dimming module and handheld ultraviolet disinfection instrument

Technical Field

The utility model belongs to the technical field of sterilizing equipment technique and specifically relates to a formula of zooming module and hand-held type ultraviolet disinfection appearance of adjusting luminance is related to.

Background

With the increasing awareness of people on human health protection, the handheld ultraviolet disinfection equipment is more and more widely applied to various places, how to effectively utilize ultraviolet disinfection for sterilization and provide portable operation, and the handheld ultraviolet disinfection equipment can protect human bodies from being damaged by ultraviolet rays, and is an important reference index for measuring the ultraviolet disinfection equipment. In patent document CN213789026U, a hand-held ultraviolet sterilization device is disclosed, including holding the casing, control module and UVled sterilization module, the front end of holding the casing is provided with UVled sterilization module, the rear end is provided with control module 18, be provided with the trigger on holding the handle of casing, the circuit switch on the control module is connected to the trigger, UVled sterilization module front end is the UVled lamp plate, the rear end is provided with the radiator, UVled sterilization module is electrically connected with control module, control module connects the power, realize handheld use, but structure among the above-mentioned technical scheme is complicated, the radiating effect is unsatisfactory, and the unable regulation that zooms of its ultraviolet luminous intensity and radiation range that shines, the range of application and the use occasion of sterilizing equipment are limited. There is therefore a need for improvement.

Disclosure of Invention

The utility model aims at providing a formula of zooming module of adjusting luminance and hand-held type ultraviolet disinfection appearance, its rationally distributed, compact structure have the characteristic that light-passing board and the variable focus of lamp pearl interval were adjusted, intensity of disinfecting and effectual, the use occasion scope is wide to can effectively avoid the ultraviolet ray to leak, the operating mode is simple and convenient, the security performance is high, long service life.

The utility model discloses a following technical scheme of purpose accessible realizes:

the utility model provides a zoom formula module of adjusting luminance, includes light-passing board and light-passing board zoom mechanism, light-passing board zoom mechanism is including swing joint movable plate and fixed plate around in proper order, movable plate and fixed plate are annular platelike structure, have 2 rectangular shape guide holes of symmetry respectively on the movable plate and the activity is equipped with the guide block respectively, the back that corresponds the movable plate on the guide block has the dog portion, the fixed plate has 2 rectangular shape guide slots that correspond the rectangular shape guide hole sets up, rectangular shape guide slot is the slant guide slot structure that one end narrows down gradually to the other end, its bottom surface is the slant face, the bottom activity of guide block is inserted in rectangular shape guide slot, the guide block atress can be followed the rectangular shape guide slot of fixed plate and removed and made its dog portion keep away from or be close to the fixed plate, and then realize the regulation of movable plate and fixed plate interval; the light-transmitting plate is provided with a plurality of semi-circular or strip-shaped light-transmitting convex parts, the front surfaces of the light-transmitting convex parts are arched convex surfaces, the back surfaces of the light-transmitting convex parts are planes, and the light-transmitting plate is fixedly arranged on a movable plate of the light-transmitting plate zooming mechanism.

Preferably, in the light-transmitting plate zooming mechanism, the back of the movable plate is provided with a plurality of back columns which are uniformly arranged, the tail ends of the back columns are provided with back column stoppers, the fixed plate is provided with a plurality of back column through holes corresponding to the back columns, and the back columns are movably inserted into the back column through holes one by one to enable the movable plate and the fixed plate to be sequentially and movably connected front and back.

Preferably, in the light-transmitting plate zoom mechanism, a telescopic spring is movably sleeved on the back column of the movable plate, one end of the telescopic spring is abutted to the back column stopper, and the other end of the telescopic spring is abutted to the back surface of the fixed plate.

Preferably, in the transparent plate zoom mechanism, at least 1 arc-shaped convex part is arranged on the bottom surface of the elongated guide groove of the fixed plate.

Preferably, in the light-transmitting plate zoom mechanism, the tail end of the guide block is provided with an inclined surface matched with the bottom surface of the elongated guide groove.

A hand-held ultraviolet disinfection instrument comprises an outer shell, an ultraviolet disinfection module arranged on the outer shell, a heat dissipation module arranged in the outer shell and the zoom type dimming module; the ultraviolet disinfection module comprises an LED ultraviolet lamp panel, wherein a plurality of reflecting cups which are uniformly arranged and LED ultraviolet lamp beads positioned at the bottom in the reflecting cups are arranged on the front side of the LED ultraviolet lamp panel; the heat dissipation module comprises a heat radiator and a heat dissipation fan, the heat radiator is arranged on the back face of the LED ultraviolet lamp panel and is provided with a plurality of heat dissipation fins which are sequentially spaced, and the heat dissipation fan is arranged near the heat radiator; the fixed plate fixed mounting that the formula of zooming was adjusted luminance the module and is passed through the light-passing board and zoom mechanism fixes the place ahead of ultraviolet disinfection module on the shell body, makes the light-passing board locate on the front of LED ultraviolet lamp plate with anti-light cup and LED ultraviolet lamp pearl shroud.

Preferably, the outer shell is a vertically arranged rectangular shell structure, one end shell wall of the outer shell is provided with an end opening, and the middle parts of two side shell walls are provided with symmetrically arranged heat dissipation holes; the ultraviolet disinfection module is installed near the end opening in the shell body, and the formula of zooming module is installed on the shell body will end opening block, heat dissipation module's radiator is located the shell body in the middle part and is leaned on the back of LED ultraviolet lamp board, and the fin interval arrangement of radiator makes and forms heat dissipation channel between 2 adjacent fins, and the one end that is located heat dissipation channel in the shell body sets up radiator fan.

Preferably, have the battery chamber in the bottom of shell body and embed rechargeable battery, have the control chamber and embed in the upper portion that the ultraviolet disinfection module one end was kept away from to the shell body and have a control mainboard, rechargeable battery, LED ultraviolet lamp board and radiator fan electricity connection control mainboard respectively.

Preferably, the middle part of one end of the outer shell far away from the ultraviolet disinfection module is provided with a holding part.

Preferably, an annular stop ring surrounding the edge of the light-transmitting plate is further arranged on the end opening of the outer shell.

The utility model has the following substantive characteristics and progress:

1. the utility model discloses a formula of zooming module of adjusting luminance, it sets up the oblique guide slot of rectangular shape of gradually narrowing down through the guide block that sets up the fender portion on the movable plate on deciding the board, makes the guide block atress can reciprocate, realizes the inside and outside removal of light-passing board of fixed mounting on the movable plate to adjust light-passing board and lamp pearl interval, reach the formula of zooming and adjust the effect. Set up a plurality of arc convex parts simultaneously on rectangular shape slant guide slot to the location guide block keeps off on the position on the difference from top to bottom, makes light-passing board and lamp pearl interval can keep fixed in a period, and the guarantee zooms the continuation of formula regulation effect and stabilizes, and the lamp pearl jets out from the light-passing board that has the arch convex surface, has the effectual characteristics of spotlight.

2. The utility model discloses a formula of zooming module of adjusting luminance, it is through setting up a plurality of back of the body posts at the movable plate back, and the back of the body post end sets up back of the body post spacer head, and the movable sleeve has expanding spring on the back of the body post for the movable plate moves smoothly when keeping away from or being close to fixed plate, and expanding spring plays buffering, damping effect, has the effect that resets to the movable plate.

3. The utility model discloses a hand-held type ultraviolet disinfection appearance, it sets up punctiform LED ultraviolet lamp pearl through the reflection of light cup bottom at the LED ultraviolet lamp plate, and cover reflection of light cup and LED ultraviolet lamp pearl through the light-passing board that has the printing opacity convex part, make ultraviolet disinfection light reflect light under the effect of cup reflection spotlight, shine out after the arch front of light-passing board is gathered respectively again, make ultraviolet light spotlight effectual, the radiant quantity of unit area ultraviolet light is big, the irradiation range is wide, even intensive LED ultraviolet lamp pearl that sets up on the LED ultraviolet lamp plate, make ultraviolet disinfection light luminosity strong, the illumination uniformity, the wide characteristics of radiation range, bactericidal strength and effect promote greatly.

4. The utility model discloses a hand-held type ultraviolet disinfection appearance, it is through setting up the louvre on the shell, the LED ultraviolet lamp board back sets up the radiator, interval arrangement heat dissipation channel on the radiator, and heat dissipation channel one end sets up hot-blast fan, multiple radiating mode cooperatees, and overall arrangement is reasonable, moreover, the steam generator is compact in structure, not only improve hand-held type ultraviolet disinfection appearance's heat dispersion greatly, and the operation stability ability of equipment has been promoted, further through the battery chamber at mutual isolation simultaneously, set up rechargeable battery in the control chamber respectively, the control mainboard, make control mainboard and rechargeable battery keep apart with the ultraviolet disinfection module that high generates heat, control mainboard and rechargeable battery have effectively been protected, the service life of equipment is prolonged.

5. The utility model discloses a hand-held type ultraviolet disinfection appearance, its edge through at the light-passing board surrounds annular light-blocking ring, and the light-passing board is stretched out to annular light-blocking ring's bottom, not only can effectively avoid the ultraviolet ray to leak, ensures safe in utilization and disinfection and isolation effect moreover.

Drawings

Fig. 1 is a schematic structural diagram of the appearance of the hand-held ultraviolet disinfection apparatus of embodiment 1.

Fig. 2 is a schematic structural view of the LED ultraviolet lamp panel and the light-transmitting plate in the handheld ultraviolet sterilizer of embodiment 1.

Fig. 3 is a schematic internal cross-sectional view of the hand-held uv disinfection apparatus of example 1.

Fig. 4 is an exploded view of a focusing dimming module in the hand-held uv sterilizer of embodiment 1.

Fig. 5 is a schematic structural diagram of a movable plate in a zoom type dimming module according to embodiment 1.

Fig. 6 is a schematic cross-sectional view of a zoom type dimming module according to embodiment 1 in a state where a movable plate and a fixed plate are closest to each other.

Fig. 7 is a schematic cross-sectional view illustrating a state where a movable plate and a fixed plate are farthest from each other in a zoom-type dimming module according to embodiment 1.

Fig. 8 is a schematic structural diagram of the appearance of the hand-held ultraviolet disinfection apparatus of embodiment 2.

Fig. 9 is a schematic structural view of the LED ultraviolet lamp panel and the light-transmitting plate in the handheld ultraviolet sterilizer of embodiment 2.

Detailed Description

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

Example 1

Referring to fig. 4 to 7, a zoom type dimming module includes a transparent plate 3 and a transparent plate zoom mechanism. The light-transmitting plate zooming mechanism comprises a movable plate 80 and a fixed plate 81 which are movably connected in sequence front and back, wherein the movable plate 80 and the fixed plate 81 are both of annular plate-shaped structures. The transparent plate 3 is fixedly mounted on the movable plate 80, the transparent plate 3 has a plurality of semicircular light-transmitting protrusions 30, the front surfaces of the light-transmitting protrusions 30 are arched convex surfaces, and the back surfaces thereof are flat surfaces. The back surface of the movable plate 80 has a plurality of back posts 84 uniformly arranged, and the ends of the back posts 84 are provided with back post stoppers 85, in this embodiment, the back post stoppers 85 are screws connected to the back post stoppers 85. The fixed plate 81 has a plurality of back post through holes corresponding to the back posts 84, and the back posts 84 are movably inserted into the back post through holes one by one to movably connect the movable plate 80 and the fixed plate 81 one by one. The back column 84 is movably sleeved with a telescopic spring 86, one end of the telescopic spring 86 is abutted against the back column stop 85, and the other end of the telescopic spring 86 is abutted against the back surface of the fixed plate 81, so that the movable plate 80 is buffered and damped during movement, and the movable plate 80 can be helped to reset.

The movable plate 80 is respectively provided with 2 symmetrical elongated guide holes 800 and is respectively movably provided with a guide block 82, the guide block 82 is provided with a baffle part 820 corresponding to the back of the movable plate 80, the fixed plate 81 is provided with 2 elongated guide grooves 810 corresponding to the elongated guide holes 800, the elongated guide grooves 810 are of an inclined guide groove structure, one end of each inclined guide groove structure is gradually narrowed towards the other end of each inclined guide groove structure, the bottom surfaces of the inclined guide grooves 810 are inclined surfaces, and the bottom surfaces of the elongated guide grooves 810 are provided with 2 arc-shaped convex parts 811. The bottom of the guide block 82 is movably inserted into the elongated guide groove 810, and the end of the guide block 82 is provided with an inclined surface matched with the bottom surface of the elongated guide groove 810. The guide block 82 is forced to move along the elongated guide slot 810 of the fixed plate 81 to make the blocking portion 820 far away from or close to the fixed plate 81, thereby realizing the adjustment of the distance between the movable plate 80 and the fixed plate 81. In this embodiment, 2 arc-shaped protrusions 811 are provided on the elongated guide groove 810 to form 3-step positioning in the forced movement of the guide block 82, thereby realizing 3-step adjustment of the distance between the movable plate 80 and the fixed plate 81. As shown in fig. 6, the end of the guide block 82 moves to the arc-shaped protrusion 811 at the lowermost portion, and the distance between the movable plate 80 and the stationary plate 81 is minimized. As shown in fig. 7, the end of the guide block 82 moves to the uppermost arc-shaped protrusion 811, and the distance between the movable plate 80 and the stationary plate 81 becomes the largest. The variable-focus and light-control effect is achieved by changing the distance between the movable plate 80 and the fixed plate 81.

Referring to fig. 1, a hand-held ultraviolet disinfection apparatus comprises an outer casing 1, an ultraviolet disinfection module disposed on the outer casing 1, a heat dissipation module disposed in the outer casing 1, and the above-mentioned zoom type light modulation module, wherein the zoom type light modulation module is fixedly mounted on the outer casing 1. The outer shell 1 is a rectangular shell structure which is vertically arranged, one end shell wall of the outer shell is provided with an end opening, and the middle parts of two side shell walls are provided with heat dissipation holes 11 which are symmetrically arranged. The ultraviolet disinfection module is installed near the end opening in shell body 1, and the formula of zooming module of adjusting luminance is installed on shell body 1 will end opening block, the middle part that shell body 1 kept away from ultraviolet disinfection module one end has the portion of holding 10. An annular stop ring 12 surrounding the edge of the light-transmitting plate 3 is arranged on the end opening of the outer shell 1.

Referring to fig. 2 and 3, the ultraviolet disinfection module includes an LED ultraviolet lamp panel 2, and a plurality of light reflecting cups 21 uniformly arranged and LED ultraviolet lamp beads 20 located at the bottom in the light reflecting cups 21 are arranged on the front surface of the LED ultraviolet lamp panel 2. The heat dissipation module comprises a heat sink 4 and a heat dissipation fan 5, the heat sink 4 is arranged in the middle of the outer shell 1 and is attached to the back of the LED ultraviolet lamp panel 2, the heat sink 4 is provided with a plurality of heat dissipation fins 41 which are sequentially arranged at intervals, the heat dissipation fins 41 are arranged at intervals to form a heat dissipation channel 40 between the adjacent 2 heat dissipation fins 41, and the heat dissipation fan 5 is arranged at one end of the outer shell 1, which is positioned in the heat dissipation channel 40.

The zooming type dimming module is fixedly installed in the front of the ultraviolet disinfection module on the outer shell body 1 through the fixed plate 81, so that the light-transmitting plate 3 is arranged on the front surface of the LED ultraviolet lamp panel 2 and covers the reflecting cup 21 and the LED ultraviolet lamp bead 20. As shown in fig. 6, the end of the guide block 82 moves to the arc-shaped convex portion 811 at the lowest part, the distance between the movable plate 80 and the fixed plate 81 is the smallest, and the light-transmitting plate 3 fixedly mounted on the movable plate 80 is closest to the LED ultraviolet lamp bead 20 in the LED ultraviolet lamp panel 2. As shown in fig. 7, the end of the guide block 82 moves to the arc-shaped protrusion 811 at the uppermost portion, the distance between the movable plate 80 and the stationary plate 81 is the largest, and the transparent plate 3 fixedly mounted on the movable plate 80 is the farthest from the LED uv lamp beads 20. The zooming and dimming effects of the handheld ultraviolet disinfection instrument are realized by the distance between the light-transmitting plate 3 and the LED ultraviolet lamp beads 20.

Have the battery chamber in the bottom of shell body 1 and embed rechargeable battery 6, have the control chamber and embed in the upper portion of ultraviolet disinfection module one end is kept away from to shell body 1 and have control mainboard 7, and rechargeable battery 6, LED ultraviolet lamp plate 2 and radiator fan 5 are electric connection control mainboard 7 respectively.

The hand-held type ultraviolet disinfection appearance of this embodiment belongs to the portable handheld disinfecting and sterilizing equipment who possesses the effect of adjusting luminance that zooms, and its is rationally distributed, compact structure, uses in a flexible way, can adjust luminance through zooming under the scene of difference and change the size and the disinfection of ultraviolet facula length of time. The ultraviolet disinfection module is attached to the heat dissipation module, and the transverse heat dissipation channels 40 between the heat dissipation fins 41 arranged at intervals greatly improve the high heat dissipation performance and the equipment operation stability of the handheld small ultraviolet disinfection instrument. The built-in rechargeable battery 6 in the battery chamber in shell body 1 bottom, disinfection module upper portion control chamber embeds control mainboard 7 for control mainboard 7 and rechargeable battery 6 and the ultraviolet disinfection module of high fever keep apart each other, effective protection control mainboard 7 and rechargeable battery 6, the life of extension hand-held type ultraviolet disinfection appearance. The spotlight effect of reflection of light cup 21 among the ultraviolet disinfection module to and the positive arch convex surface of the semi-circular printing opacity convex part 30 of light-passing board 3 form punctiform spotlight effect to the LED ultraviolet light that LED ultraviolet lamp pearl 20 sent, make the radiant quantity grow of unit area ultraviolet light, ultraviolet light irradiation range becomes wide behind the even intensive arrangement LED ultraviolet lamp pearl 20 on the LED ultraviolet lamp plate 2, promotes bactericidal strength and effect greatly.

When this embodiment uses, gripping portion 10, the bottom with the small-size ultraviolet disinfection appearance shell body 1 of hand-held type is on the surface to the article of disinfecting, LED ultraviolet lamp pearl 20 in the ultraviolet disinfection module launches the ultraviolet light disinfection of disinfecting, occasion that needs disappear fast, stir the lower most portion of guide block 82 to rectangular shape guide slot 810, like the position of guide block 82 in fig. 6, it is nearest to make light-passing board 3 apart from LED ultraviolet lamp pearl 20, thereby the intensive facula appears when the punctiform light of LED ultraviolet lamp pearl 20 transmission jets out from light-passing board 3's printing opacity convex part 30, the disinfection effect is strong, the time of disinfecting is short. On the occasion that large-area killing is needed, the wave guide block 82 is arranged at the uppermost part of the strip-shaped guide groove 810, such as the position of the guide block 82 in fig. 7, so that the light-transmitting plate 3 is farthest away from the LED ultraviolet lamp beads 20, and thus, when point-shaped light rays emitted by the LED ultraviolet lamp beads 20 are emitted from the light-transmitting convex part 30 of the light-transmitting plate 3, large scattered light spots appear, and the killing area is large. Meanwhile, the annular light blocking ring 12 forms a boundary for irradiation of ultraviolet light, ultraviolet light leakage is avoided, the use safety performance of the handheld ultraviolet disinfection instrument is enhanced, damage to a human body by the ultraviolet light is avoided, meanwhile, concentrated irradiation of the ultraviolet light is guaranteed, and the sterilization effect is improved.

Example 2

Referring to fig. 8 and 9, the present embodiment is different from embodiment 1 in that: in the formula of zooming module of adjusting luminance and a hand-held type ultraviolet disinfection appearance of this embodiment, the printing opacity convex part 30 that has rectangular shape on the light-passing board 3, the LED ultraviolet ray that LED ultraviolet lamp board 2 sent forms strip spotlight effect.

Claims

1. A zoom-type dimming module is characterized in that: including light-passing board (3) and light-passing board zoom mechanism, light-passing board zoom mechanism is including swing joint movable plate (80) and stationary plate (81) around in proper order, movable plate (80) and stationary plate (81) are annular platelike structure, have 2 rectangular shape guide holes (800) of symmetry and the activity is equipped with guide block (82) respectively on movable plate (80), the back that corresponds movable plate (80) on guide block (82) has a fender portion (820), stationary plate (81) have corresponding 2 rectangular shape guide slot (810) that rectangular shape guide hole (800) set up, rectangular shape guide slot (810) are the slant guide slot structure that one end narrows gradually to the other end, its bottom surface is the slant face, the bottom activity of guide block (82) is inserted in rectangular shape guide slot (810), and guide block (82) atress can be followed rectangular shape guide slot (810) of stationary plate (81) and moved and make its fender portion (820) keep away from or be close to stationary plate (81), further realizing the adjustment of the distance between the movable plate (80) and the fixed plate (81);

the light-transmitting plate (3) is provided with a plurality of semi-circular or strip-shaped light-transmitting convex parts (30), the front surface of each light-transmitting convex part (30) is an arched convex surface, the back surface of each light-transmitting convex part is a plane, and the light-transmitting plate (3) is fixedly arranged on a movable plate (80) of the light-transmitting plate zooming mechanism.

2. A variable focus dimming module as claimed in claim 1, wherein: in the light-transmitting plate zooming mechanism, the back surface of the movable plate (80) is provided with a plurality of back columns (84) which are uniformly arranged, the tail ends of the back columns (84) are provided with back column stoppers (85), the fixed plate (81) is provided with a plurality of back column through holes corresponding to the back columns (84), and the back columns (84) are movably inserted into the back column through holes one by one to ensure that the movable plate (80) and the fixed plate (81) are sequentially and movably connected front and back.

3. A variable focus dimming module as claimed in claim 2, wherein: in the light-transmitting plate zooming mechanism, a telescopic spring (86) is movably sleeved on a back column (84) of a movable plate (80), one end of the telescopic spring (86) is abutted against a back column stop head (85), and the other end of the telescopic spring is abutted against the back surface of a fixed plate (81).

4. A variable focus dimming module according to claim 1, 2 or 3, wherein: in the light-transmitting plate zooming mechanism, at least 1 arc-shaped convex part (811) is arranged on the bottom surface of the long-strip-shaped guide groove (810) of the fixed plate (81).

5. A variable focus dimming module according to claim 1, 2 or 3, wherein: in the light-transmitting plate zooming mechanism, the tail end of the guide block (82) is provided with an inclined plane matched with the bottom surface of the elongated guide groove (810).

6. A hand-held ultraviolet disinfection instrument comprises an outer shell (1), an ultraviolet disinfection module arranged on the outer shell (1) and a heat dissipation module arranged in the outer shell (1); the ultraviolet disinfection module comprises an LED ultraviolet lamp panel (2), wherein a plurality of reflecting cups (21) which are uniformly arranged and LED ultraviolet lamp beads (20) which are positioned at the bottom in the reflecting cups (21) are arranged on the front surface of the LED ultraviolet lamp panel (2); the heat dissipation module comprises a heat radiator (4) and a heat dissipation fan (5), the heat radiator (4) is arranged on the back face of the LED ultraviolet lamp panel (2) and provided with a plurality of heat dissipation fins (41) which are sequentially spaced, and the heat dissipation fan (5) is arranged near the heat radiator (4); the method is characterized in that: the LED ultraviolet lamp comprises an LED ultraviolet lamp panel (2) and is characterized by further comprising a zooming type dimming module according to claim 1, 2 or 3, wherein the zooming type dimming module is fixedly installed in front of the ultraviolet disinfection module on the outer shell (1) through a fixed plate (81) of a light-transmitting plate zooming mechanism, and the light-transmitting plate (3) is arranged on the front face of the LED ultraviolet lamp panel (2) and covers the reflecting cup (21) and the LED ultraviolet lamp bead (20).

7. The hand-held ultraviolet disinfection apparatus of claim 6, wherein: the outer shell (1) is a vertically arranged rectangular shell structure, one end shell wall of the outer shell is provided with an end opening, and the middle parts of two side shell walls are provided with symmetrically arranged heat dissipation holes (11); near the end opening of ultraviolet disinfection module installation in shell body (1), the formula of zooming module installation will on shell body (1) end opening block, middle part and paste the back of LED ultraviolet lamp board (2) in shell body (1) are located in shell body (1) in radiator (4) of heat dissipation module, and fin (41) interval arrangement of radiator (4) makes and forms heat dissipation channel (40) between 2 adjacent fin (41), and the one end that lies in heat dissipation channel (40) in shell body (1) sets up radiator fan (5).

8. The hand-held ultraviolet disinfection instrument of claim 7, wherein: the LED lamp is characterized in that a battery cavity is formed in the bottom of the outer shell (1) and internally provided with a rechargeable battery (6), a control cavity is formed in the upper portion, away from one end of the ultraviolet disinfection module, of the outer shell (1) and internally provided with a control mainboard (7), and the rechargeable battery (6), the LED ultraviolet lamp panel (2) and the cooling fan (5) are respectively electrically connected with the control mainboard (7).

9. The hand-held ultraviolet disinfection apparatus of claim 8, wherein: the middle part of one end of the outer shell (1) far away from the ultraviolet disinfection module is provided with a holding part (10).

10. A hand-held ultraviolet disinfection apparatus as claimed in claim 6 or 7 or 8 or 9, further comprising: an annular light blocking ring (12) surrounding the edge of the light transmission plate (3) is further arranged on the end opening of the outer shell (1).