CN215022783U

CN215022783U - Deep ultraviolet LED disinfection device

Info

Publication number: CN215022783U
Application number: CN202120259983.6U
Authority: CN
Inventors: 冯晓东
Original assignee: Qingdao Hengjin Intelligent Technology Co ltd
Current assignee: Qingdao Hengjin Intelligent Technology Co ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-12-07
Anticipated expiration: 2031-01-29

Abstract

The utility model provides a dark ultraviolet LED degassing unit, including dark ultraviolet LED light source, its characteristics are: the deep ultraviolet LED light source is an array consisting of a plurality of deep ultraviolet LED units, the deep ultraviolet LED light sources are uniformly distributed and installed on the surface of a base, and a distance sensor is further arranged on the surface of the base. The base is arranged in an arc-shaped reflecting cover, the inner arc surface of the arc-shaped reflecting cover is a reflecting surface, and the deep ultraviolet LED faces the inner arc surface of the arc-shaped reflecting cover. The outer arc surface of the arc-shaped reflecting cover is connected with a mechanical arm, a controller and a driving mechanism are arranged on the mechanical arm, the base is connected with one end of a pushing shaft, the other end of the pushing shaft penetrates through a through hole in the arc-shaped reflecting cover to be connected to the driving mechanism, and the controller is connected with the control end of the driving mechanism and the distance sensor. The deep ultraviolet irradiation area and range can be adjusted, the deep ultraviolet irradiation parameters can be automatically adjusted according to objects at different distances, energy is saved, and the sterilization efficiency is improved.

Description

Deep ultraviolet LED disinfection device

Technical Field

The utility model belongs to the technical field of disinfecting equipment, a improvement, a dark ultraviolet LED degassing unit specifically says so of ultraviolet disinfection technique is related to.

Background

At present, sterilization and disinfection are generally classified into chemical sterilization and disinfection and physical sterilization and disinfection, and at present, ultraviolet rays are generally adopted for physical sterilization and disinfection.

The ultraviolet light has a wavelength in the range of 10 nanometers (nm) to 400 nanometers (nm) and an energy in the range of 3 electron volts (eV) to 124 electron volts (eV). Ultraviolet rays are classified into ultraviolet rays a, ultraviolet rays B, ultraviolet rays C, and the like according to wavelength. Wherein the ultraviolet C is abbreviated as UVC, also called deep ultraviolet, and generally refers to ultraviolet light wave with wavelength of 100 nm to 280 nm, and the energy thereof is between 12.4eV and 4.43 eV. Scientific researches show that the deep ultraviolet ray with proper dosage can kill all microorganisms including bacteria, viruses, algae, spores and other microorganisms.

The conventional ultraviolet light source used for sterilization is mainly a low-pressure mercury lamp. Ultraviolet rays are generated by arc discharge by igniting mercury vapor in the lamp tube. The low-pressure mercury lamp has the advantages of high luminous efficiency and high power, but has the following disadvantages:

(1) the lamp tube contains mercury, so that once the lamp tube is damaged, the environment pollution is easily caused, and the use is unsafe;

(2) the characteristics of mercury elements determine that clutter exists in a luminous spectral line, ozone is generated during irradiation, and the ozone is a carcinogen;

(3) the light intensity is low, and the light intensity of the traditional mercury lamp is about 1mW/cm²Long-time irradiation is needed to achieve the sterilization effect;

(4) high voltage is needed during starting, the volumes of the lamp tube and the driving circuit are large, and the power consumption is high;

(5) the service life is short, generally only about 2000 hours.

At present, in the application of sterilization and disinfection, UVC LEDs are gradually popularized and adopted to generate deep ultraviolet rays. The UVC LED is manufactured by adopting a semiconductor production process and has the following outstanding advantages:

(1) the radiation intensity is high, the light intensity of unit area is more than 1000 times higher than that of a mercury lamp, and microorganisms in the radiation range can be effectively killed in a short time; the service life is long, which can reach 10000-;

(2) the spectral line is concentrated, no clutter exists, no ozone is generated, no toxic elements such as mercury and the like exist, no toxicity, no residue and no peculiar smell are generated when the device is used, ultraviolet rays disappear after power is cut off, and no pollution is caused to the environment;

(3) the volume is small, the working voltage is low, and the safety is good; the control circuit is simple and convenient to use.

UVC LED sterilization has the above advantages, but also has the following disadvantages:

(1) the human eyes are invisible, so that the eyes and the skin of a human body exposed to ultraviolet rays for a long time are easily burnt;

(2) influenced by device materials, the luminous efficiency is lower, a single chip cannot achieve high power, and the maximum power UVC LED which can be seen in the current market is 100 mW;

(3) only the area directly struck by the light can be disinfected. Areas which cannot be irradiated by light cannot be disinfected;

(4) the radiation intensity is higher than that of traditional ultraviolet light sources such as mercury lamps and the like, but the effective irradiation range is small; since the effective irradiation range is related to the irradiation distance, the irradiation intensity is rapidly reduced with the increase of the irradiation distance, which affects the sterilization effect.

Currently, a variety of deep ultraviolet LED disinfection devices have been disclosed: for example, chinese patent (application No. 201911101534), chinese patent (application No. 202010445746) and chinese patent (application No. 202010339485) all relate to deep ultraviolet LED disinfection technology. However, these disinfection devices have the following disadvantages:

1. the power is low, the device is only suitable for short-distance and small-range disinfection application, and effective disinfection on distant objects and large areas cannot be realized; this solution cannot be applied when the sterilizer and the object to be sterilized are in a relative motion state;

2. only the area directly irradiated by the light can be disinfected, and the use is inconvenient;

3. the output power of the equipment is not variable, the sterilization effect can be ensured only by changing the irradiation time, the control means is single, and the sterilization efficiency is lower.

Disclosure of Invention

The utility model provides a solve the above-mentioned problem that prior art exists, provide a deep ultraviolet LED degassing unit, can adjust deep ultraviolet irradiation region and scope, to the object automatically regulated deep ultraviolet irradiation parameter of different distances, the energy saving improves the efficiency of disinfecting.

The utility model aims at realizing through the following technical scheme:

a deep ultraviolet LED disinfection device comprises a deep ultraviolet LED light source, and is characterized in that the deep ultraviolet LED light source is an array consisting of a plurality of deep ultraviolet LED units, and is uniformly distributed and installed on the surface of a base, and the surface of the base is also provided with a distance sensor; the base is arranged in an arc-shaped reflecting cover, the inner arc surface of the arc-shaped reflecting cover is a reflecting surface, and the deep ultraviolet LED faces the inner arc surface of the arc-shaped reflecting cover; the outer arc surface of the arc-shaped reflecting cover is connected with a mechanical arm; the mechanical arm is provided with a controller and a driving mechanism, the arc-shaped reflecting cover is provided with a through hole, the base is connected with one end of a pushing shaft, the other end of the pushing shaft penetrates through the through hole in the arc-shaped reflecting cover to be connected to the driving mechanism, and the controller is connected with the control end of the driving mechanism and the distance sensor.

The improvement of the technical scheme is as follows: the base is a shell with a cavity, one surface of the base, which is used for installing the deep ultraviolet LED light source, is an arc-shaped surface, and the surface opposite to the arc-shaped surface is a plane plate.

The technical scheme is further improved as follows: a human body induction sensor is arranged on the plane plate and connected to the controller; the distance sensor is also arranged on the plane plate.

The technical scheme is further improved as follows: and a driving device of the deep ultraviolet LED light source is arranged in the cavity of the base and is connected with the controller.

The technical scheme is further improved as follows: and a cooling fan is also arranged in the cavity of the base and is connected with the controller.

The technical scheme is further improved as follows: an alarm is arranged on the base and connected with the controller.

The utility model has the advantages that:

1. the utility model increases the transmitting power by the simultaneous operation of a plurality of UVC LED units; the distance between the deep ultraviolet LED disinfection component and the reflector is adjusted to focus the reflected light, so that the radiation intensity is further increased, and the object at a longer distance can be effectively disinfected;

2. the mechanical arm in the utility model can be arranged on the executing mechanism such as the robot trolley, etc., thereby realizing the automation of large-space disinfection scanning, reducing the labor cost and risk and improving the disinfection efficiency;

3. the utility model discloses a towards ultraviolet irradiation area's distance sensor, can realize the object automatically regulated output to different distances, perhaps change scanning speed, perhaps change the focus form. The cooperation of various adjusting means can satisfy the required radiation dose of disinfecting simultaneously, the energy saving to sterilization efficiency is improved.

4. The utility model discloses a towards ultraviolet irradiation region's human response sensor, whether can effectively detect the ultraviolet irradiation region in have a human body, the system can in time cut off power supply when the human body, ensures safe in utilizationly.

Drawings

Fig. 1 is a schematic view of the whole structure of a deep ultraviolet LED disinfection device of the present invention;

FIG. 2 is a schematic view of a partial structure of a deep ultraviolet LED disinfection device of the present invention;

FIG. 3 is a perspective view of one side of a base display panel in the deep ultraviolet LED disinfection apparatus of the present invention;

FIG. 4 is a perspective view of a base showing an arc-shaped surface side of the deep ultraviolet LED disinfection device of the present invention;

fig. 5 is a schematic view of a reflection light path of the deep ultraviolet LED disinfection apparatus of the present invention;

fig. 6 is a schematic view of a focusing light path of the deep ultraviolet LED disinfection apparatus of the present invention;

fig. 7 is a schematic circuit diagram of the deep ultraviolet LED disinfection device of the present invention.

The reference numbers in the figures are: 1-deep ultraviolet LED light source, 2-base, 2.1-arc surface, 2.2-plane, 2.3-cavity, 3-reflector, 4-mechanical arm, 5-controller, 6-driving mechanism, 7-pushing shaft, 8-distance sensor and 9-human body induction sensor.

Detailed Description

The invention will be described in further detail with reference to embodiments in the drawings to which:

referring to fig. 1-7, an embodiment of the present invention relates to a deep ultraviolet LED disinfection apparatus, which includes a deep ultraviolet LED light source 1, the deep ultraviolet LED light source 1 is an array composed of a plurality of deep ultraviolet LED units, and is uniformly distributed on the surface of a base 2. The base 2 is arranged in an arc-shaped reflecting cover 3, the inner arc surface of the arc-shaped reflecting cover 3 is a reflecting surface, and the deep ultraviolet LED faces the inner arc surface of the arc-shaped reflecting cover 3. The outer arc surface of the arc-shaped reflecting cover 3 is connected with a mechanical arm 4, and a controller 5 and a driving mechanism 6 are arranged on the mechanical arm 4. The arc-shaped reflecting cover 3 is provided with a through hole, the base 2 is connected with one end of a pushing shaft 7, and the other end of the pushing shaft 7 penetrates through the through hole in the arc-shaped reflecting cover to be connected to the driving mechanism 6. The controller 5 is connected with a control end of the driving mechanism 6 and a distance sensor 8. The driving mechanism 6 can adopt a worm gear or an electric push rod.

As shown in fig. 3, the base 2 is a housing having a cavity 2.3, one side of the base 2 where the deep ultraviolet LED light source 1 is installed is an arc-shaped surface 2.1, and the side opposite to the arc-shaped surface 2.1 is a flat plate 2.2, and when in use, the flat plate 2.2 faces to an object to be disinfected.

A human body induction sensor 9 is arranged on the plane plate 2.2, and the human body induction sensor 9 is connected to the controller 5; the above-mentioned distance sensor 8 is also arranged on the plane plate 2.2.

As shown in fig. 3, in the present embodiment, a human body sensor 9 is respectively arranged at two ends of a plane plate 2.2; two distance sensors 8 are provided, each arranged in an intermediate position on the plane plate 2.2. The number and specific positions of the human body induction sensors 9 and the distance sensors 8 can be adjusted as required.

Further, a driving device of the deep ultraviolet LED light source 1 is installed in the cavity 2.3 of the base 2, and the driving device is connected with the controller 5.

In practical implementation, a cooling fan may be provided in the cavity 2.3 of the base 2 for cooling the device, said cooling fan being connected to said controller 5, see the schematic circuit diagram of fig. 7. An alarm is arranged on the base 2 and connected with the controller 5.

When the disinfection lamp is used, light rays emitted by the deep ultraviolet LED light source 1 are reflected by the arc-shaped reflecting cover 3 and then emitted to the surface of an object to be disinfected. The pushing shaft 7 can pull the base 2 to change the relative distance between the deep ultraviolet LED light source 1 and the arc-shaped reflecting cover 3, and when the deep ultraviolet LED light source 1 is far away from the arc-shaped reflecting cover 3, the reflected light rays are in a divergent trend, as shown in fig. 5; when the deep ultraviolet LED light source 1 is close to the arc-shaped reflecting shade 3, the reflected light rays tend to be focused, as shown in fig. 6.

The mechanical arm 4 can carry parts such as the deep ultraviolet LED light source 1 and the like to move in space, scan objects needing to be disinfected, adjust the irradiation angle and enlarge the sterilization range. When in need, the mechanical arm 4 can be arranged on the robot body, the automation of disinfection in a larger space is realized, and the mechanical arm can be matched with other mechanical arms, can grab and turn over the disinfected objects, and realizes disinfection without dead angles.

The controller 5 receives signals sent by the human body induction sensor 9 on the base 2, if the signals show that a human body exists in the irradiation area, the controller 5 cuts off the power supply of the deep ultraviolet LED light source 1 and gives an alarm through an alarm, and the use safety is ensured.

The utility model relates to a disinfection application method of above-mentioned dark ultraviolet LED degassing unit embodiment, including following step:

step 1: turning on the deep ultraviolet LED light source 1 to sterilize the object to be sterilized;

step 2: the distance from the base 2 to the object to be sterilized is detected by the distance sensor 8 on the base 2,

the controller 5 receives the data returned by the distance sensor 9 and performs one or more of the following combined operations to adjust the radiation intensity:

a. controlling a mechanical arm 4 to change the distance between the disinfection part and the object to be disinfected;

b. adjusting the scanning speed of the deep ultraviolet LED light source 1 on the mechanical arm 4;

c. adjusting the working current effective value of the deep ultraviolet LED light source 1, and changing the output power;

d. the relative position of the base 2 and the arc-shaped reflecting cover 3 is adjusted, so that the focusing form of the deep ultraviolet LED light source 1 is adjusted, and the irradiation area on the object to be disinfected is changed.

Further, in the process of disinfecting the object to be disinfected, the controller 5 receives signals of the human body induction sensor 9 on the base 2, if the signals show that a human body exists in the irradiation area of the deep ultraviolet LED light source 1, the controller 5 cuts off the power supply of the deep ultraviolet LED light source 1 and sends out alarm signals through the alarm, and the use safety is ensured.

Still further, install arm 4 on the robot, the robot removes and realizes the automatic disinfection of bigger space range, and the object to be disinfected is grabbed by other manipulators to overturn or remove, realize disinfecting no dead angle.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.

Claims

1. A deep ultraviolet LED disinfection device comprises a deep ultraviolet LED light source, and is characterized in that the deep ultraviolet LED light source is an array consisting of a plurality of deep ultraviolet LED units, and is uniformly distributed and installed on the surface of a base, and the surface of the base is also provided with a distance sensor; the base is arranged in an arc-shaped reflecting cover, the inner arc surface of the arc-shaped reflecting cover is a reflecting surface, and the deep ultraviolet LED faces the inner arc surface of the arc-shaped reflecting cover; the outer arc surface of the arc-shaped reflecting cover is connected with a mechanical arm; the mechanical arm is provided with a controller and a driving mechanism, the arc-shaped reflecting cover is provided with a through hole, the base is connected with one end of a pushing shaft, the other end of the pushing shaft penetrates through the through hole in the arc-shaped reflecting cover to be connected to the driving mechanism, and the controller is connected with the control end of the driving mechanism and the distance sensor.

2. The deep ultraviolet LED disinfection device as recited in claim 1, wherein the base is a housing with a cavity, the surface of the base where the deep ultraviolet LED light source is mounted is an arc surface, and the surface opposite to the arc surface is a flat plate.

3. The deep ultraviolet LED disinfection apparatus of claim 2, wherein a human body sensor is disposed on the planar panel, the human body sensor being connected to the controller; the distance sensor is also arranged on the plane plate.

4. The deep ultraviolet LED disinfection apparatus as claimed in claim 2 or 3, wherein the driving device of the deep ultraviolet LED light source is installed in the cavity of the base, and the driving device is connected to the controller.

5. The deep ultraviolet LED disinfection device as claimed in claim 2 or 3, wherein a cooling fan is further disposed in the cavity of the base, and the cooling fan is connected to the controller.

6. The deep ultraviolet LED disinfection device of claim 4, wherein a cooling fan is further disposed in the cavity of the base, and the cooling fan is connected to the controller.

7. The deep ultraviolet LED disinfection device of any one of claims 1-3, wherein an alarm is disposed on the base, the alarm being connected to the controller.

8. The deep ultraviolet LED disinfection device of claim 6, wherein an alarm is disposed on the base, the alarm being connected to the controller.