CN215189196U

CN215189196U - Dark ultraviolet LED surface sterilizing equipment

Info

Publication number: CN215189196U
Application number: CN202121584207.XU
Authority: CN
Inventors: 苗延镇; 亓培剑; 齐胜利; 吴化胜; 钱凌龙
Original assignee: Ningbo Anxinmei Semiconductor Co ltd
Current assignee: Ningbo Anxinmei Semiconductor Co ltd
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2021-12-17
Anticipated expiration: 2031-07-13

Abstract

The utility model provides a pair of dark ultraviolet LED surface sterilizing equipment, include: a housing and an illumination section; the illumination part is arranged in the housing and positioned at the top of the housing; illumination portion includes two light source boards, two light source boards mutually support and form the ascending V type structure of opening, and two light source boards all face towards the outside transmitted light of V type structure. The utility model provides a dark ultraviolet LED surface sterilizing equipment can carry out the omnidirectional thoroughly to disappear to food and kill, guarantees food safety, and the cost is low, and the no side effect.

Description

Dark ultraviolet LED surface sterilizing equipment

Technical Field

The utility model relates to a kill equipment field especially relates to a dark ultraviolet LED surface sterilization device.

Background

Food production enterprises, such as enterprises producing cakes, milk and the like, have strict requirements on sterilization before food packaging, and the following sterilization process modes are mainly adopted in common sterilization: first, pasteurization is carried out using a heat treatment process at a relatively low temperature, generally at a temperature below the boiling point of water, using hot water as the heat transfer medium. The sterilization conditions are 61-63 ℃ and 30min, or 72-75 ℃ and 10-15 min. The sterilization method has long time and discontinuous production process, and is easy to change some heat-sensitive components after being heated for a long time, so the sterilization is not ideal. At present, the method is rarely adopted in large and medium-sized food enterprises. Secondly, ultra-high temperature instant sterilization, UHT sterilization for short. The heating temperature is generally 125-150 ℃, the heating time is 2-8 seconds, and the heated product meets the commercial sterile requirement. The sterilization method can achieve the purpose of sterilization instantly and has good sterilization effect. The UHT ultra-high temperature sterilization system has large investment and high cost. And thirdly, microwave sterilization, namely, after the food is subjected to microwave treatment, microorganisms in the food lose activity or die, so that the purpose of prolonging the shelf life is achieved. The microwave sterilization has low efficiency and is insufficient. Fourth, ozone sterilization, ozone is a light purple gas with special fishy smell existing at room temperature and freezing temperature. At normal temperature, the ozone can be automatically decomposed to generate a large amount of free radicals, so that the ozone has the characteristic of strong oxidizing property. Ozone sterilization also has the disadvantages of low efficiency and insufficient sterilization. And fifthly, ultraviolet sterilization, which has the function of promoting the degeneration of cytoplasm. When microbial cells absorb ultraviolet light, photochemical reactions occur to cause chemical changes in intracellular components, particularly RNA, DNA, and the like, thereby denaturing cytoplasm and inactivating cytoplasm. The ultraviolet ray effect of the accessory with the wavelength of 270nm is the best, the ultraviolet ray sterilization mode in the early food industry is the mercury lamp ultraviolet ray sterilization mode, and the mercury lamp ultraviolet ray sterilization mode has great safety risk because mercury is a heavy metal with toxicity.

SUMMERY OF THE UTILITY MODEL

In order to solve the above-mentioned food in the prior art and disappear the unsatisfactory defect of technique, the utility model provides a dark ultraviolet LED surface sterilizing equipment can carry out the omnidirectional thoroughly to disappear to food and kill, guarantees food safety, and the cost is low, and the no side effect.

The utility model provides a pair of dark ultraviolet LED surface sterilizing equipment, include: a housing and an illumination section; the illumination part is arranged on the inner side of the top of the housing; the illumination part comprises two light source plates which are obliquely and symmetrically arranged, and the symmetrical surfaces of the two light source plates are positioned in the vertical direction; the two light source plates are close to each other along the direction far away from the top of the housing; the two light source plates emit light to the side away from the top of the housing.

Preferably, illumination portion still includes the support that sets up at the housing top, the support adopts the metal material, the support is convex panel structure downwards, the light source board sets up the outside at the support.

Preferably, the two light source plates are matched with each other to form a V-shaped structure with an upward opening, and the two light source plates emit light rays towards the outer side of the V-shaped structure; the bracket adopts a V-shaped structure; or a horizontal light source plate located in the horizontal direction is arranged between the lower edges of the two light source plates, the horizontal light source plate emits light downwards, and the two light source plates and the horizontal light source plate are attached to the outer side of the support.

Preferably, two ends of the housing are communicated, two or more than two illumination parts are arranged in the housing, the illumination parts are distributed along the direction of a connecting line of the two ends of the housing, a symmetrical plane between two light source plates in the illumination parts is used as a central plane of the illumination parts, and the central planes of adjacent illumination parts are mutually vertical.

Preferably, the top of the housing is provided with exhaust holes which correspond to the illumination parts one by one, and exhaust fans are installed at the exhaust holes.

Preferably, the light source plates are composed of a substrate and deep ultraviolet LED light sources arranged on the substrate in an array mode, and projections of the two light source plates in the illumination portion on the plane where the corresponding air exhaust holes are located on the inner periphery of the air exhaust holes.

Preferably, illumination portion still includes the V type support of setting at the housing top, the V type support adopts the metal material, the light source board sets up on the V type support and is located the outside of V type support.

Preferably, the top of the housing is further provided with a window, and the window is located between the adjacent illumination parts.

Preferably, the distance between the edges of adjacent light irradiation parts which are close to each other is 3cm to 15 cm.

Preferably, the casing is of a downwardly open U-shaped configuration.

Preferably, the two light source plates in the illumination part form an included angle of 45 degrees with the vertical plane; the distance between the edge of the light source plate in the illumination part with the central axis parallel to the opposite direction of the housing and the side wall of the housing is 1cm to 5 cm.

Preferably, two mutually parallel straight edges of the cover casing extend outwards and horizontally to form a mounting edge.

The utility model has the advantages that:

(1) in the utility model, the light-emitting angles of the light rays emitted by the light source plates are combined, so that the emitted light rays of the two light source plates can irradiate the upper surfaces of the objects to be sterilized, which are positioned in the housing and below the illumination part; the side surface of the article to be sterilized can be killed and killed by the reflection of the light rays emitted by the light source plate through the inner wall of the housing.

(2) The illuminating part with the V-shaped structure can kill two opposite side surfaces of the article to be sterilized, such as the front side surface, the rear side surface, the left side surface and the right side surface; and the plurality of illuminating parts are distributed in the housing in a mode that the central axes are mutually vertical, so that the front, the back, the left and the right sides of the article to be sterilized are sterilized at the same time.

(3) The two ends of the housing are communicated, and two or more than two illumination parts are arranged in the housing, so that the housing can be directly covered on a conveyor belt for transporting the objects to be sterilized, and the conveyor belt extends out of the two ends of the housing, thereby sterilizing the objects to be sterilized in the transportation process. The illumination parts are distributed along the connecting line direction of the two ends of the housing, so that when the housing is matched with the conveyor belt, the articles to be sterilized on the conveyor belt sequentially pass through the illumination parts, and the device can continuously perform illumination sterilization on the articles to be sterilized along the moving direction of the articles to be sterilized. And in the moving process of the object to be sterilized, the upper surface, the front side, the rear side, the left side and the right side are all positioned in the illumination range of the illumination part, thereby ensuring that five surfaces which are contacted with air and are easy to infect bacteria receive full irradiation of ultraviolet rays and ensuring the sterilization effect.

(4) The utility model provides a surface sterilizing device, applicable in food processing technology, for example the sterilization before the cake packing etc. can carry out the omnidirectional thoroughly to disappear and kill to food, guarantees food safety, and the cost is low, the no side effect.

(5) Through the setting of the illumination portion of V type structure, can realize treating the five ultraviolet illumination of the article of disinfecting and disinfect in hexahedron space, guarantee bactericidal effect.

(6) The exchange speed of air around the illumination portion and the outer air of housing is increased through the exhaust fan and the exhaust hole, and therefore the radiating effect of the illumination portion is improved when the illumination portion works.

(7) The exhaust inlet of the exhaust fan completely covers the light source plate, thereby improving the heat dissipation effect. The V-shaped support is made of metal materials, so that the heat conduction efficiency of the light source plate is improved, and the heat dissipation efficiency of the light source plate is further improved.

Drawings

FIG. 1 is a perspective view of a deep ultraviolet LED surface sterilization device;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a half sectional view of FIG. 1;

FIG. 4 is a half sectional view of FIG. 1;

FIG. 5 is a schematic view of the structure of the illumination portion;

FIG. 6 is a schematic view of another structure of the illumination portion;

fig. 7 is a schematic structural view of another illumination unit.

1. A housing; 10. an air exhaust hole; 11. mounting edges; 12. a window; 2. an illumination section; 21. a light source plate; 22. a support; 23. a horizontal light source plate; 3. an exhaust fan.

Detailed Description

The deep ultraviolet LED surface sterilization device that this embodiment provided includes: a housing 1 and a lighting unit 2. The illuminating part 2 is disposed inside the housing 1 and on the top of the housing 1. The illumination part 2 comprises two light source plates 21, the two light source plates 21 are inclined and symmetrically arranged, and the symmetrical surfaces of the two light source plates 21 are positioned in the vertical direction; the two light source boards 21 are close to each other along the direction far away from the top of the housing 1; the two light source boards 21 emit light to the side away from the top of the housing 1.

Thus, the light emitting angles of the light rays emitted by the light source plates 21 are combined, so that the light rays emitted by the two light source plates 21 can irradiate the upper surfaces of the objects to be sterilized, which are positioned in the housing 1 and below the illumination part 2; the side surface of the article to be sterilized can be sterilized by reflecting the light emitted from the light source plate 21 through the inner wall of the housing 1. Therefore, the lateral surface of the article to be sterilized can be sterilized through the matching of the housing 1 and the illumination part 2, so that five surfaces which are easy to infect bacteria and are contacted with air are ensured to receive full irradiation of ultraviolet rays, and the sterilizing and killing effect is ensured.

In this embodiment, two ends of the housing 1 are communicated, and two or more than two illumination parts 2 are arranged in the housing 1, so that the housing 1 can be directly covered on a conveyor belt for transporting an article to be sterilized, and the conveyor belt extends out from two ends of the housing 1, thereby sterilizing the article to be sterilized in the transportation process. The illumination parts 2 are distributed along the connecting line direction of the two ends of the housing 1, so that when the housing 1 is matched with the conveyor belt, the device can carry out continuous illumination sterilization along the moving direction of the objects to be sterilized. The symmetrical planes of the two light source plates 21 in the illumination part are taken as the central planes of the illumination part 2, and the central planes of the adjacent illumination parts 2 are mutually vertical. Therefore, the connecting line direction of the two ends of the housing 1 is the moving direction of the object to be sterilized in the housing 1, and the illumination sterilization of the upper surface, the front side surface and the rear side surface of the object to be sterilized can be realized through the illumination part of which the central plane is vertical to the moving direction of the object to be sterilized; and the central plane is parallel to the emission light of the illumination part of the movement direction of the object to be sterilized, part of the emission light is directly emitted to the upper surface of the object to be sterilized, and part of the emission light is reflected to the left side surface and the right side surface of the object to be sterilized by the housing 1, namely, the illumination sterilization of the upper surface, the left side surface and the right side surface of the object to be sterilized can be realized through the illumination part 2 of which the central plane is parallel to the movement direction of the object to be sterilized. Therefore, through the arrangement of the illumination part 2, five-surface ultraviolet illumination sterilization of the articles to be sterilized can be realized in the hexahedral space, and the sterilization effect is ensured.

During specific implementation, two light source boards 21 in illumination portion 2 mutually support and form the ascending V type structure of opening, and two light source boards 21 all face towards the outside emission light of V type structure. Or, a horizontal light source plate 23 located in the horizontal direction is disposed between the lower edges of the two light source plates 21 in the illuminating part 2, and the horizontal light source plate 23 emits light downward, so that a larger illuminating coverage can be realized.

In this embodiment, the top of the housing 1 is provided with exhaust holes 10 corresponding to the illumination portions 2 one by one, and the exhaust fan 3 is installed at the exhaust holes 10. Thus, the exchange speed between the air around the illumination part 2 and the air outside the housing 1 can be increased by the exhaust fan 3 and the exhaust hole 10, so that the heat dissipation effect of the illumination part 2 is improved when the illumination part 2 works.

Specifically, in this embodiment, the light source plate 21 is composed of a substrate and deep ultraviolet LED light sources arranged on the substrate in an array manner, and projections of the two light source plates 21 on a plane where the corresponding exhaust holes 10 are located in the illumination portion 2 are located on the inner periphery of the exhaust holes 10, so as to ensure that the exhaust inlets of the exhaust fans 3 completely cover the light source plate 21, thereby improving the heat dissipation effect. Specifically, in this embodiment, the illumination portion 2 further includes a support 22 disposed at the top of the housing 1, and the support 22 is made of metal material to improve the heat conduction efficiency of the light source board 21, so as to further improve the heat dissipation efficiency of the light source board 21.

When the two light source boards 21 in the illuminating part 2 form a V-shaped structure, the bracket 22 adopts a V-shaped structure, and the light source boards 21 are arranged on the bracket 22 and positioned outside the bracket 22, as shown in fig. 5; when a horizontal light source plate 23 is further arranged between the lower edges of the two light source plates 21 in the illuminating part 2, the support 22 is a downward-protruding panel structure, and the two light source plates 21 and the horizontal light source plate 23 are both attached to the outer side of the support 22, as shown in fig. 6. The light irradiation section 2 shown in fig. 7 may also be employed.

In the present embodiment, the distance between the edges of adjacent illuminating portions 2 close to each other is 3cm to 15cm to avoid mutual shielding.

In the present embodiment, the housing 1 has a U-shaped structure that opens downward. Two light source plates 21 in the illumination part 2 form an included angle of 45 degrees with the vertical plane. Meanwhile, the distance between the edge of the light source plate 21 in the illumination part 2 with the central axis parallel to the opposite direction of the housing 1 and the side wall of the housing 1 is 1cm to 5cm, so that the side wall of the housing 1 can reflect light rays, and illumination of the left side surface and the right side surface of an article to be sterilized can be guaranteed.

In this embodiment, two parallel straight edges of the housing 1 extend horizontally outward to form a mounting edge 11, so as to facilitate the mounting of the housing 1.

In this embodiment, the top of the housing 1 is further provided with a window 12, and the window 12 is located between the adjacent illumination portions 2, so as to facilitate observation of the objects to be sterilized inside the housing 1.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. A deep ultraviolet LED surface sterilizing device is characterized by comprising: a housing (1) and an illumination unit (2); the illumination part (2) is arranged on the inner side of the top of the housing (1); the illumination part (2) comprises two light source plates (21), the two light source plates (21) are inclined and symmetrically arranged, and the symmetrical surfaces of the two light source plates (21) are positioned in the vertical direction; the two light source plates (21) are close to each other along the direction far away from the top of the housing (1); the two light source plates (21) emit light to the surface away from the top of the housing (1).

2. The deep ultraviolet LED surface sterilization device according to claim 1, wherein the illumination portion (2) further comprises a support (22) disposed on the top of the housing (1), the support (22) is made of metal, the support (22) is a downward-protruding panel structure, and the light source plate (21) is disposed outside the support (22).

3. The deep ultraviolet LED surface sterilization device according to claim 2, characterized in that the two light source boards (21) are mutually matched to form a V-shaped structure with an upward opening, and both the two light source boards (21) emit light towards the outer side of the V-shaped structure; the bracket (22) adopts a V-shaped structure; or a horizontal light source plate (23) located in the horizontal direction is arranged between the lower edges of the two light source plates (21), the horizontal light source plate (23) emits light downwards, and the two light source plates (21) and the horizontal light source plate (23) are attached to the outer side of the support (22).

4. The deep ultraviolet LED surface sterilization device according to claim 1, wherein two ends of the housing (1) are connected in an end-to-end manner, two or more than two illumination portions (2) are arranged in the housing (1), the illumination portions (2) are distributed along a connecting line direction of the two ends of the housing (1), a symmetrical plane of two light source plates (21) in the illumination portions (2) is used as a central plane of the illumination portions (2), and the central planes of adjacent illumination portions (2) are perpendicular to each other.

5. The deep ultraviolet LED surface sterilization device according to claim 4, characterized in that the top of the housing (1) is provided with exhaust holes (10) corresponding to the illumination parts (2) one by one, and the exhaust holes (10) are provided with exhaust fans (3).

6. The deep ultraviolet LED surface sterilization device according to claim 5, wherein the light source boards (21) are composed of a substrate and deep ultraviolet LED light sources arranged on the substrate in an array manner, and projections of the two light source boards (21) in the illumination part (2) on a plane where the corresponding air exhaust holes (10) are located on the inner periphery of the air exhaust holes (10).

7. The deep ultraviolet LED surface sterilization device according to claim 4, characterized in that a window (12) is further provided on the top of the casing (1), and the window (12) is located between the adjacent illuminating portions (2).

8. The deep ultraviolet LED surface sterilization device according to claim 4, characterized in that the distance between the edges where the adjacent illuminating portions (2) approach each other is 3cm to 15 cm.

9. The deep ultraviolet LED surface sterilization device according to claim 4, characterized in that the casing (1) is a U-shaped structure with a downward opening, and two parallel straight edges of the casing (1) extend outwards and horizontally to form a mounting edge (11).

10. The deep ultraviolet LED surface sterilization device according to claim 9, wherein two light source boards (21) in the illumination part (2) form an included angle of 45 degrees with the vertical plane; the distance between the edge of the light source plate (21) in the illumination part (2) with the central axis parallel to the opposite direction of the housing (1) and the side wall of the housing (1) is 1cm to 5 cm.