CN114246415A - Ultraviolet light LED disinfection brush that array was arranged - Google Patents

Ultraviolet light LED disinfection brush that array was arranged Download PDF

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Publication number
CN114246415A
CN114246415A CN202210084667.9A CN202210084667A CN114246415A CN 114246415 A CN114246415 A CN 114246415A CN 202210084667 A CN202210084667 A CN 202210084667A CN 114246415 A CN114246415 A CN 114246415A
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CN
China
Prior art keywords
ultraviolet
led
disinfectant
array
control circuit
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Pending
Application number
CN202210084667.9A
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Chinese (zh)
Inventor
刘珉恺
蔡德芳
王石语
张灏
杨振江
王志伟
程斌
刘崇朴
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Xi'an Mick Cross Border Information Technology Co ltd
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Xi'an Mick Cross Border Information Technology Co ltd
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Application filed by Xi'an Mick Cross Border Information Technology Co ltd filed Critical Xi'an Mick Cross Border Information Technology Co ltd
Priority to CN202210084667.9A priority Critical patent/CN114246415A/en
Publication of CN114246415A publication Critical patent/CN114246415A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B15/00Other brushes; Brushes with additional arrangements
    • A46B15/0055Brushes combined with other articles normally separate from the brushing process, e.g. combs, razors, mirrors
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08Radiation
    • A61L2/10Ultraviolet radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/26Accessories or devices or components used for biocidal treatment
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B47/00Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10Controlling the light source
    • H05B47/105Controlling the light source in response to determined parameters
    • H05B47/115Controlling the light source in response to determined parameters by determining the presence or movement of objects or living beings
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40Control techniques providing energy savings, e.g. smart controller or presence detection

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

The invention relates to the technical field of UVC disinfection, in particular to an ultraviolet LED disinfection brush arranged in an array, which is characterized in that: the ultraviolet disinfection brush body is composed of ultraviolet LEDs arranged in an array and a control circuit, the ultraviolet LEDs arranged in the array are arranged in groups and at least comprise one proximity sensing circuit, when the brush body moves at a certain speed to disinfect the irradiated disinfectant, the control circuit acquires a signal of the proximity sensing circuit, and when the signal gives confirmation information of the irradiated disinfectant, the control circuit controls the ultraviolet LEDs arranged in the array to work to disinfect the irradiated disinfectant; when the ultraviolet LED array is far away from the irradiated disinfectant, the control circuit controls the ultraviolet LEDs arranged in the array to stop working. The ultraviolet LED disinfection brush is an array ultraviolet LED disinfection brush which can not cause injury to operators.

Description

Ultraviolet light LED disinfection brush that array was arranged
Technical Field
The invention relates to the technical field of UVC disinfection, in particular to an ultraviolet LED1 disinfection brush arranged in an array mode, which is suitable for being used for conveniently and limitlessly disinfecting express, clothes, beds, cabinets or other articles.
Background
The common signs of human infection with the novel coronavirus include respiratory symptoms, fever, cough, shortness of breath, dyspnea and the like. In more severe cases, the infection can lead to pneumonia, severe acute respiratory syndrome, renal failure, and even death. There is no specific treatment for diseases caused by the novel coronavirus. However, many symptoms are treatable and therefore need to be treated according to the clinical condition of the patient. In addition, the adjuvant care of infected persons can be very effective. The self-protection is well done and comprises the following steps: maintaining basic hand and respiratory hygiene, maintaining safe eating habits, and avoiding as much as possible close contact with any person exhibiting symptoms of respiratory illness (e.g., coughing and sneezing, etc.).
The basic transmission mode of the novel coronavirus is transmission through respiratory droplets and contact, and the droplets and the contact transmission may be carried on clothes, different objects are contacted by hands, such as express delivery, clothes, beds or handheld objects.
The current method for randomly disinfecting large-area articles is to spray disinfectant, and UVC ultraviolet disinfection is adopted for indoor fixed points.
In the former method, the sprayed disinfectant can enter the respiratory system of human body and affect the health of human body. In the latter UVC disinfection process, people in a disinfection space are required to leave, and only the light irradiation surface can effectively disinfect articles in the disinfection space.
Disclosure of Invention
The invention aims to provide an array-arranged ultraviolet LED1 disinfection brush which can conveniently and unrestrictedly disinfect any articles such as express delivery, clothes, beds, cabinets or other articles without causing injury to operators.
The invention aims to realize the purpose, and the ultraviolet LED disinfection brush arranged in an array is characterized in that: the ultraviolet disinfection brush body is composed of ultraviolet LEDs (1) and a control circuit (2), the ultraviolet LEDs (1) are arranged in an array mode, the ultraviolet LEDs (1) are arranged in the array mode and at least comprise one proximity sensing circuit (3), when the brush body moves at a certain speed to disinfect an irradiated disinfectant (4), the control circuit (2) obtains signals close to the sensing circuit (3), and when the signals give confirmation information of the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array mode to work and disinfect the irradiated disinfectant (4); when the ultraviolet LED array is far away from the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) distributed in the array to stop working.
The ultraviolet LEDs (1) arranged in the array are arranged according to groups, each group at least comprises one proximity sensing circuit (3), and when the control circuit (2) acquires signals of each group of proximity sensing circuits (3) and the signals give confirmation information that a certain group of ultraviolet LEDs (1) is close to the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array to work to disinfect the irradiated disinfectant (4); when the ultraviolet LEDs (1) arranged in the array are far away from the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array of the corresponding group to stop working.
The ultraviolet disinfection brush body moves at a certain speed, wherein the moving speed V needs to confirm the following parameters: radiant optical power required to kill 99.99% of viruses: mJ/cm 2; the ultraviolet LED radiates luminous power; the light emitting angle of the ultraviolet light LED, the minimum number of the width of the ultraviolet light LED array is designed according to the parameters, the minimum moving speed of the ultraviolet disinfection brush body is calculated,
the method specifically comprises the following steps:
1) calculating the distance L from the center position of the ultraviolet LED to the surface of the disinfectant according to the light emitting angle of the ultraviolet LED;
2) determining the area formed at the distance L and the ultraviolet light radiation optical power corresponding to the area;
3) the area and joules to kill 99.99% of the virus were found: mJ/cm 2;
4) determining the slowest moving speed V of the ultraviolet disinfection brush body;
5) combining the step 1), the step 2), the step 3) and the step 4), calculating the number of the ultraviolet LEDs which are parallel to each other at the slowest speed V of the movement of the ultraviolet disinfection brush body on the surface L from the central position of the ultraviolet LEDs to the surface of the disinfectant;
6) and 5) determining the disinfection area per second at the designed moving speed of the ultraviolet disinfection brush body and the whole array N x M corresponding to the area, wherein N is the number of rows and M is the number of columns.
The proximity sensing circuit (3) is used for acquiring the distance L from the center position of the ultraviolet LED to the surface of the disinfectant.
The proximity sensing circuit (3) or the photoelectric sensor is characterized in that the photoelectric sensor at least comprises a photosensitive device, when the ultraviolet disinfection brush body disinfects the surface of a disinfectant, a receiving surface of the photosensitive device faces the surface of the disinfectant, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, an output voltage value is detected by the control circuit (2), the control circuit (2) controls the ultraviolet LED to emit light to work, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, and exceeds a threshold range, the control circuit (2) controls the ultraviolet LED to stop working so as to protect the safety of a user, and only the ultraviolet LED emits light to act on the surface of the disinfectant.
The proximity sensing circuit (3) or the photosensitive device and the LED luminous source, the LED luminous source provides a background light source, when the ultraviolet disinfection brush body disinfects the surface of the disinfectant, the receiving surface of the photosensitive device faces the surface of the disinfectant, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, the background light emitted by the LED luminous source influences the photosensitive device to a stable value, because the control circuit (2) controls the ultraviolet LED to work in a luminous mode, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, and the background light influences the photosensitive device, the control circuit (2) controls the ultraviolet LED to stop working, so that the safety of a user is protected, and only the light emitting effect of the ultraviolet LED is exerted on the surface of the disinfectant.
The proximity sensing circuit (3) or the contact switch, the contact position of the contact switch is the distance L from the center position of the ultraviolet LED to the surface of the disinfectant, when the contact switch is triggered to send a signal, the control circuit (2) controls the ultraviolet LED to work, when the contact switch is not triggered and the signal is not sent, the control circuit (2) controls the ultraviolet LED to stop working, so that the safety of a user is protected, and only the ultraviolet LED emits light to act on the surface of the disinfectant.
The ultraviolet disinfection brush body is fixed in a cuboid shell (5), ultraviolet light transmitting glass (9) is arranged on the light emitting output surface of the ultraviolet light LED, the ultraviolet light transmitting glass (9) is made of quartz glass, and the distance from the outer surface of the quartz glass to the central surface of the ultraviolet light LED is the distance L from the central position of the ultraviolet light LED to the surface of the disinfection object; the rectangular shell (5) is made of aluminum alloy material, and the lamp panel (8) for fixing the ultraviolet LED is an aluminum substrate.
A handle is arranged on one side or the upper surface of the cuboid shell (5), a switch is arranged on the handle (7), and the switch is connected in series in a loop formed by the rechargeable battery (6), the ultraviolet LEDs (1) arranged in an array and the control circuit (2).
The control circuit (2) comprises at least: the device comprises a processor (12), a rechargeable battery (6), a booster circuit (11), an LED indicator lamp (10), a power conversion circuit (13) and a proximity sensing circuit (3); the ultraviolet LEDs (1) arranged in the array are distributed in nine groups, 4 are in a string, the ultraviolet LEDs in 4 strings are in 3 groups, the output of one path of booster circuit (11) is loaded in one group of the array, each group of loads comprises LED indicating lamps (10) connected in series, each path of booster circuit (11) controls an enabling end to be electrically connected with one path of output I/O port of a processor (12), the operation or the non-operation of the processor (12) is controlled through one path of output I/O port, the corresponding LED indicating lamp (10) is on during the operation, and the corresponding LED indicating lamp (10) is off during the non-operation.
The rechargeable battery 6 provides 12V and 3A power, the 4 ultraviolet light LEDs are connected in series to require 22V-24V voltage, each current is 40-50ma, the 3 parallel circuits require 120ma-150ma, and nine groups are provided, and in addition, the 12V rechargeable battery 6 also provides 3-5V power supply voltage for the processor 12 and the proximity sensing circuit 3 through the power supply conversion circuit 13.
The proximity sensing circuit 3 is designed on two sides of the width of the ultraviolet light LEDs 1 arranged in an array, one or two paths are designed for each group, 18 paths are needed for the design on two sides, and 9 paths are needed for the design on one side.
The proximity sensing circuit 3 is composed of a phototriode 19 and a collector resistor, the collector of the phototriode 19 is electrically connected with one end of the resistor, the electric connection point is electrically connected with a VSS point to an a/d input port of the processor 12, 18 a/d input ports are needed in total, and a power supply of the proximity sensing circuit 3 provides 3-5V voltage through a power conversion circuit 13.
The invention has the advantages that: the ultraviolet disinfection brush body comprises ultraviolet LED1 and control circuit 2 that the array was arranged, the ultraviolet LED1 that the array was arranged is arranged according to the group, whether the ultraviolet LED1 face that arranges at the array adds and is close sensing circuit 3 detection brush body and be close the disinfectant surface, the ultraviolet ray adopts deep ultraviolet to disinfect to the disinfectant, the disinfection during operation, if it detects that the ultraviolet disinfection brush body is close the disinfectant surface to be close to be close sensing circuit 3, control circuit 2 control ultraviolet disinfection brush body work, the ultraviolet disinfection brush body sends deep ultraviolet irradiation disinfectant surface disinfection to the disinfectant surface, the disinfectant surface is greater than the brush body surface and is many, move with the speed of design through removing the brush body, can clean the disinfection to large tracts of land disinfectant. When the ultraviolet LED1 disinfection brush bodies arranged in the array are separated from the surface of the disinfectant, the control circuit 2 controls to close the ultraviolet LED disinfection brush bodies to work, and when the ultraviolet LED disinfection brush bodies are partially separated, the control circuit 2 controls to close the local ultraviolet LED disinfection brush bodies to work, so that the ultraviolet LED1 disinfection brush bodies arranged in the array only clean and disinfect the surface of the disinfectant at the contact part.
It brings the following advantages:
1. the ultraviolet energy emitted by the ultraviolet LED can be used for disinfection to the greatest extent, the battery energy is saved, the battery energy is reasonable in design, the cost is reduced, the service life is prolonged, one-time charging can be continued for a longer time, and the convenience in use is brought.
2. Guarantee user's safety, owing to be the contact disinfection, can not let the ultraviolet ray reveal during the disinfection, cause the light radiation influence to the user, safe, reliable wants the disinfection just, no matter in any place, whether someone.
3. The application range is wide, and articles in the field, express delivery, clothes, food and indoor environment can be quickly disinfected in no time or in no occasion.
The invention overcomes the problems of the existing disinfection method, can disinfect both articles and environment, and is suitable for disinfection in restaurants, hotels, families, expressages, hospitals and public office environments.
Drawings
The invention is further illustrated by the following examples and figures:
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a side view of embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of a lamp bead parameter analysis in embodiment 1 of the present invention;
fig. 4 is a control circuit schematic diagram of embodiment 1 of the present invention;
FIG. 5 is a longitudinal structural view of the casing in embodiment 1;
fig. 6 is a control circuit schematic diagram of embodiment 2 of the present invention;
FIG. 7 is a schematic structural view of example 3 of the present invention;
FIG. 8 is a schematic structural view of example 4 of the present invention;
fig. 9 is a schematic structural diagram of embodiment 5 of the present invention.
In the figure, 1, ultraviolet light LEDs are arranged in an array; 2. a control circuit 3, a proximity sensing circuit; 4. irradiated disinfectant; 5. a housing; 6. a rechargeable battery; 7. a handle; 8. a lamp panel of an ultraviolet LED; 9. ultraviolet light-transmitting glass; 10. an LED indicator light; 11. a boost circuit; 12. a processor; 13. a power conversion circuit; 14. a power switch; 15. a light emitting source; 16. a charging interface; 17. a laminate; 18. group (d); 19. a phototriode.
Detailed Description
Example 1
As shown in fig. 1 and fig. 2, a 6 x 18 ultraviolet LED1 disinfection brush with an array arrangement is designed.
The ultraviolet light LED selects 3535 for packaging, radiates the luminous power of the ultraviolet light to be 5mw, the wave band is 270-275nm, and the inactivation energy of the new coronavirus at the wave band is as follows: the light emitting angle of the 2mJ/cm2 and 5mw3535 packaged ultraviolet LED is 120 degrees.
As shown in fig. 3, at a divergence angle of 120 degrees, at L =3mm, a circle of 12mm in diameter is formed, and the light flux of the circle of 12mm in diameter is 5 mw; the inactivation energy of the new coronavirus is as follows: 2mJ/cm2, so that it only takes 0.4 seconds to irradiate the surface of the disinfectant at 3mm with a luminous flux of 5mw, arranged in a 6 x 18 array, the uv LED disinfection brush has an inactivation area per second: (6/0.4) 15CM by 18 CM =270CM2. Therefore, at a position 3mm away from the lamp bead, the virus can be inactivated by 270CM by cleaning at 15CM/s2The area is used for cleaning new coronavirus.
The ultraviolet light LED1 disinfection brush arranged in 6 x 18 array is used for packaging small pieces, only a few kinds of small pieces are needed for safe cleaning, and no peculiar smell is generated.
The power of the selected single-particle-collecting lamp bead is as follows: 6V 0.04MA =0.24W, total 6X 18 lamp beads, the power is 26W. Therefore, when the rechargeable battery 612V is selected and used, the rechargeable battery 6 is about 30W, and the condition that one time per day is charged can meet the condition that one courier sterilizes 150 parcels per day.
For hotel room and bed disinfection, larger area structures such as 12 x 36 uv LED disinfection brushes with beads can be used. Of course, 20mw of beads may be used, and the beads may be arranged in a 6 × 18 array. Since its sweeping speed will be increased by a factor of 4.
In the embodiment shown in fig. 1, the uv LEDs 1 arranged in an array are arranged in groups 18, and in fig. 1, the uv LEDs 1 arranged in a 6 × 18 array are divided into 9 groups, a1-a9, each group of 12, and combined in 4 strings of 3.
And when one side of the ultraviolet LED is provided with one proximity sensing circuit 3 which gives a signal, the control circuit 2 controls the group of ultraviolet LEDs to work.
Fig. 4 shows a schematic diagram of a control circuit according to embodiment 1, which includes: the system comprises a processor 12, a rechargeable battery 6, a booster circuit 11, an LED indicator lamp 10, a power conversion circuit 13 and a proximity sensing circuit 3; the ultraviolet light LEDs 1 arranged in the array are distributed in nine groups, 4 are in a string, the ultraviolet light LEDs arranged in a string are loaded in one group of the array by the output of one path of the booster circuit 11, each group of loads comprises the LED indicating lamps 10 connected in series, the control enabling end of each path of the booster circuit 11 is electrically connected with one path of the output I/O port of the processor 12, the operation or the non-operation of the processor is controlled by one path of the output I/O port of the processor 12, the corresponding LED indicating lamp 10 is on during the operation, and the corresponding LED indicating lamp 10 is off during the non-operation. P1, P2 through P9 in FIG. 4 are the I/O ports of the processor 12, respectively.
The rechargeable battery 6 provides 12V and 3A power, the series connection of 4 ultraviolet LEDs requires 22V-24V voltage, each current is 40-50ma, the parallel connection of 3 circuits requires 120ma-150ma, and the total number is nine. In addition, the 12V rechargeable battery 6 also provides 3-5V power supply voltage to the processor 12 and the proximity sensing circuit 3 through the power conversion circuit 13.
In order to charge the rechargeable battery 6, a charging interface 16 is further provided, and the charging interface 16 supplies a charging current of at least 2A to charge the 12V battery.
The proximity sensing circuit 3 is designed on two sides of the width of the ultraviolet light LEDs 1 arranged in an array, one or two paths are designed for each group 9, 18 paths are needed for the design on two sides, and 9 paths are needed for the design on one side.
The present embodiment is designed in 18-way.
The proximity sensing circuit 3 is composed of a phototriode 19 and a collector resistor, the collector of the phototriode 19 is electrically connected with one end of the resistor, the electric connection point is electrically connected with a VSS point to an a/d input port of the processor 12, 18 a/d input ports are needed in total, and a power supply of the proximity sensing circuit 3 provides 3-5V voltage through a power conversion circuit 13.
The phototriode 19 in the proximity sensing circuit 3 analyzes whether the sensing circuit is close to the irradiated disinfectant 4 by receiving natural light, when the sensing circuit is not close to the irradiated disinfectant 4, the natural light enters the receiving surface of the phototriode 19 and reaches the surface of the irradiated disinfectant 4, the natural light is shielded, the resistor of the phototriode 19 is in a non-conduction state, and therefore whether the ultraviolet light LEDs 1 arranged in an array reach the surface of the irradiated disinfectant 4 is identified. This approach of course requires a good background light condition.
The 18 paths of a/d input ports respectively detect signals of the 18 paths of proximity sensing circuits 3, the 18 paths of proximity sensing circuits 3 detect nine groups of ultraviolet LEDs 1 arranged in an array mode, when one path of the signals is output with proximity signals, the I/O port corresponding to the processor 12 starts to control the ultraviolet LEDs 1 arranged in the array mode of the corresponding group to work, and when the proximity signals are not output, the processor 12 closes the corresponding I/O port to control the ultraviolet LEDs 1 arranged in the array mode of the corresponding group to not work.
As shown in fig. 2, the ultraviolet disinfection brush body is fixed in a cuboid shell 5, the light emitting output surface of the ultraviolet LED is protected by ultraviolet light transmitting glass 9, the ultraviolet light transmitting glass 9 is made of quartz glass, and the distance from the outer surface of the quartz glass to the central surface of the ultraviolet LED is the distance L from the central position of the ultraviolet LED to the surface of the disinfectant; the divergence angle L according to the lamp bead is 3mm, the rectangular shell 5 is made of aluminum alloy materials, the lamp panel 8 for fixing the ultraviolet LED is an aluminum substrate, and the lamp panel 8 for fixing the ultraviolet LED is fixed in the aluminum alloy shell 5. On a layered plate 17 of the shell 5, a lamp panel 8 of an ultraviolet LED is fixed on the lower layer of the layered plate 17, a rechargeable battery 6 is fixed on the upper layer of the layered plate 17, the rechargeable battery 6 adopts a flat plate structure, and the size of the rechargeable battery can be placed in the upper cavity of the shell 5; the broom 7 is arranged on the outer side of the shell 5, the broom 7 is provided with a power switch 14 which extends out, and the power switch 14 is connected in series in a loop formed by the rechargeable battery 6, the ultraviolet light LEDs 1 which are arranged in an array and the control circuit 2.
As shown in fig. 1 and 5, the broom 7 outside the housing 5 is designed either in the longitudinal direction (see fig. 1) or in the width direction (see fig. 5).
Example 2
As shown in fig. 6, unlike embodiment 1, embodiment 2 is different from embodiment 1 in that the proximity sensing circuit 3 includes a phototransistor 19 and a collector resistor, and further includes a light emitting source 15, the collector of the phototransistor 19 is electrically connected to one end of the resistor, the electrical connection point is electrically connected to VSS point and the a/d input port of the processor 12, and 18 a/d input ports are needed, and the power supply of the proximity sensing circuit 3 provides 3-5V voltage through the power conversion circuit 13.
And the phototriode 19 in the proximity sensing circuit 3 analyzes whether the ultraviolet light LED1 arranged in an array is close to the irradiated disinfectant 4 or not by receiving the natural light and the light-emitting source 15, when the natural light and the light-emitting source 15 are not close to each other, the natural light and the light-emitting source 15 enter the receiving surface of the phototriode 19 and reach the surface of the irradiated disinfectant 4, the natural light and the light-emitting source 15 are shielded, and the resistance of the phototriode 19 is in a non-conduction state, so that whether the ultraviolet light LED1 arranged in the array is close to the surface of the irradiated disinfectant 4 or not is identified. This approach works well regardless of the ambient light conditions.
Example 2 the other technical scheme is the same as that of example 1.
Example 3
As shown in fig. 6, the technical solution adopts embodiment or embodiment 2, but the rechargeable battery 6 is designed in the broom 7, and the broom 7 is fixedly or movably connected with the housing 5.
The broom 7 can be designed into different shapes by adopting movable connection and can be selected according to the requirements of users.
Example 4
As shown in fig. 7, the difference from example 1 is that the uv LED1 disinfection brush arranged in an array is a rectangular parallelepiped structure with 4 x 26 arrangement,
by the same design method, 3535 is selected for the ultraviolet LED to package, the optical power of the ultraviolet light is 5mw, the wave band is 270-275nm, and the inactivation energy of the new coronavirus in the wave band is as follows: the light emitting angle of the 2mJ/cm2 and 5mw3535 packaged ultraviolet LED is 120 degrees.
As also shown in fig. 3, at a divergence angle of 120 degrees, at L =3mm, a circle of 12mm in diameter is formed, the circle of 12mm in diameter having a luminous flux of 5 mw; the inactivation energy of the new coronavirus is as follows: 2mJ/cm2, so that it only takes 0.4 seconds to irradiate the surface of the disinfectant at 3mm with a luminous flux of 5mw, arranged in a 4 x 26 array, the uv LED disinfection brush has an inactivation area per second: (4/0.4) 10CM 26 CM =260CM2. Therefore, at the position 3mm away from the lamp bead, the virus can be cleaned at 10CM/s to inactivate 260CM2The area is used for cleaning new coronavirus.
The ultraviolet light LED1 disinfection brush which is also arranged in a 4-26 array wraps the small pieces, only a few of the ultraviolet light LED1 disinfection brushes are needed to clean safely, and no peculiar smell exists.
The power of the selected single-particle-collecting lamp bead is as follows: 6V 0.04MA =0.24W, total 4W 26 lamp beads, and power is 26W. Therefore, when the rechargeable battery 6 is selected to be 12V and 2.5A, the rechargeable battery 6 is about 30W, and 150 packages per day can be sterilized by one courier after being charged once a day.
The ultraviolet light LED1 disinfection brush arranged in 4 x 26 array will be divided into 13 groups, 8 ultraviolet light LEDs in each group, 13 groups are controlled by 13I/O ports respectively.
The same design includes: the proximity sensing circuit 3 on one side of the array is formed by a phototriode 19 and a collector resistor, the collector of the phototriode 19 is electrically connected with one end of the resistor, an electric connection point is electrically connected with a VSS point to an a/d input port of the processor 12, 13 a/d input ports are needed in total, and a power supply of the proximity sensing circuit 3 provides 3-5V voltage through a power supply conversion circuit 13.
The phototriode 19 in the proximity sensing circuit 3 analyzes whether the sensing circuit is close to the irradiated disinfectant 4 by receiving natural light, when the sensing circuit is not close to the irradiated disinfectant 4, the natural light enters the receiving surface of the phototriode 19 and reaches the surface of the irradiated disinfectant 4, the natural light is shielded, the resistor of the phototriode 19 is in a non-conduction state, and therefore whether the ultraviolet light LEDs 1 arranged in an array reach the surface of the irradiated disinfectant 4 is identified. This approach of course requires a good background light condition.
The 13 paths of a/d input ports respectively detect signals of the 13 paths of proximity sensing circuits 3, two groups of 13 paths of proximity sensing circuits 3 detect ultraviolet LEDs 1 arranged in the array of 13 groups, when one path of the signals is output with a proximity signal, the I/O port corresponding to the processor 12 starts to control the ultraviolet LEDs 1 arranged in the array of the corresponding group to work, and when the proximity signal is not output, the processor 12 closes the corresponding I/O port to control the ultraviolet LEDs 1 arranged in the array of the corresponding group to not work.
Since only 4 uv LEDs 1 are designed to be wide, the proximity sensing circuit 3 is designed to be one-sided.
A housing structure and a broom structure or the structure of embodiment 1 or 2.
Example 5
As shown in fig. 8, unlike the above embodiment, there are two groups of proximity sensing circuits 3 at two ends of the array, the proximity sensing circuit 3 is formed by a phototransistor 19 and a collector resistor, one end of the phototransistor 19 is electrically connected to one end of the resistor, the electrical connection point is electrically connected to VSS point to the a/d input port of the processor 12, 4 a/d input ports are needed, and the power supply of the proximity sensing circuit 3 provides 3-5V voltage through the power conversion circuit 13.
The phototriode 19 in the proximity sensing circuit 3 analyzes whether the sensing circuit is close to the irradiated disinfectant 4 by receiving natural light, when the sensing circuit is not close to the irradiated disinfectant 4, the natural light enters the receiving surface of the phototriode 19 and reaches the surface of the irradiated disinfectant 4, the natural light is shielded, the resistor of the phototriode 19 is in a non-conduction state, and therefore whether the ultraviolet light LEDs 1 arranged in an array reach the surface of the irradiated disinfectant 4 is identified. This approach of course requires a good background light condition.
The 4 paths of a/d input ports respectively detect signals of the 4 paths of proximity sensing circuits 3, two groups of 4 proximity sensing circuits 3 detect the ultraviolet LEDs 1 arranged in the array of the 4 groups, when one path of the signals is output with proximity signals, the I/O port corresponding to the processor 12 starts to control the ultraviolet LEDs 1 arranged in the array of the corresponding group to work, and when no proximity signals are output, the processor 12 closes the corresponding I/O port to control the ultraviolet LEDs 1 arranged in the array of the corresponding group to not work.
Example 5
As shown in fig. 9 and 2, unlike the above-mentioned embodiment, the array includes the proximity sensing circuit 3, the proximity sensing circuit 3 analyzes whether the irradiated sterilization object 4 is approached, and when the irradiated sterilization object is not approached, the ultraviolet LEDs 1 arranged in the array are not operated, and when the irradiated sterilization object is approached, the ultraviolet LEDs 1 arranged in the array are operated to sterilize the surface of the irradiated sterilization object 4. The proximity sensing circuit 3 has a set of ultraviolet LEDs 1 distributed in the center of the array, and the ultraviolet LEDs 1 in the array are synchronously controlled by the control circuit to operate.
Summarizing the idea of the invention, the following structures and steps can be given: the ultraviolet disinfection brush body is composed of ultraviolet LEDs 1 arranged in an array and a control circuit 2, the ultraviolet LEDs 1 arranged in the array are arranged according to groups and at least comprise one proximity sensing circuit 3, when the brush body moves at a certain speed to disinfect the irradiated disinfectant 4, the control circuit 2 obtains a signal of the proximity sensing circuit 3, and when the signal gives confirmation information of the irradiated disinfectant 4, the control circuit 2 controls the ultraviolet LEDs 1 arranged in the array to work to disinfect the irradiated disinfectant 4; when the ultraviolet light LED array is far away from the irradiated disinfectant 4, the control circuit 2 controls the ultraviolet light LEDs 1 arranged in the array to stop working; the ultraviolet disinfection brush body moves at a certain speed, wherein the moving speed V needs to confirm the following parameters: radiant optical power required to kill 99.99% of viruses: mJ/cm 2; the ultraviolet LED radiates luminous power; the minimum number of the ultraviolet LED array width is designed according to the parameters, and the minimum moving speed of the ultraviolet disinfection brush body is calculated:
the method specifically comprises the following steps:
1) calculating the distance L from the center position of the ultraviolet LED to the surface of the disinfectant according to the light emitting angle of the ultraviolet LED;
2) determining the area formed at the distance L and the ultraviolet light radiation optical power corresponding to the area;
3) the area and joules to kill 99.99% of the virus were found: mJ/cm 2;
4) determining the slowest moving speed V of the ultraviolet disinfection brush body;
5) combining the step 1), the step 2), the step 3) and the step 4), calculating the number of the ultraviolet LEDs which are parallel to each other at the slowest speed V of the movement of the ultraviolet disinfection brush body on the surface L from the central position of the ultraviolet LEDs to the surface of the disinfectant;
6) and 5) determining the disinfection area per second at the designed moving speed of the ultraviolet disinfection brush body and the whole array N x M corresponding to the area, wherein N is the number of rows and M is the number of columns.
The components and structures of the present embodiments that are not described in detail are well known in the art and do not constitute essential structural elements or elements.

Claims (10)

1. The utility model provides an ultraviolet ray LED disinfection brush that array was arranged, characterized by: the ultraviolet disinfection brush body is composed of ultraviolet LEDs (1) and a control circuit (2), the ultraviolet LEDs (1) are arranged in an array mode, the ultraviolet LEDs (1) are arranged in the array mode and at least comprise one proximity sensing circuit (3), when the brush body moves at a certain speed to disinfect an irradiated disinfectant (4), the control circuit (2) obtains signals close to the sensing circuit (3), and when the signals give confirmation information of the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array mode to work and disinfect the irradiated disinfectant (4); when the ultraviolet LED array is far away from the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) distributed in the array to stop working.
2. The ultraviolet LED disinfection brush of claim 1, further comprising: the ultraviolet LEDs (1) arranged in the array are arranged according to groups, each group at least comprises one proximity sensing circuit (3), and when the control circuit (2) acquires signals of each group of proximity sensing circuits (3) and the signals give confirmation information that a certain group of ultraviolet LEDs (1) is close to the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array to work to disinfect the irradiated disinfectant (4); when the ultraviolet LEDs (1) arranged in the array are far away from the irradiated disinfectant (4), the control circuit (2) controls the ultraviolet LEDs (1) arranged in the array of the corresponding group to stop working.
3. The ultraviolet LED disinfection brush of claim 1, further comprising: the ultraviolet disinfection brush body moves at a certain speed, wherein the moving speed V needs to confirm the following parameters: radiant optical power required to kill 99.99% of viruses: mJ/cm 2; the ultraviolet LED radiates luminous power; the light emitting angle of the ultraviolet light LED, the minimum number of the width of the ultraviolet light LED array is designed according to the parameters, the minimum moving speed of the ultraviolet disinfection brush body is calculated,
the method specifically comprises the following steps:
1) calculating the distance L from the center position of the ultraviolet LED to the surface of the disinfectant according to the light emitting angle of the ultraviolet LED;
2) determining the area formed at the distance L and the ultraviolet light radiation optical power corresponding to the area;
3) the area and joules to kill 99.99% of the virus were found: mJ/cm 2;
4) determining the slowest moving speed V of the ultraviolet disinfection brush body;
5) combining the step 1), the step 2), the step 3) and the step 4), calculating the number of the ultraviolet LEDs which are parallel to each other at the slowest speed V of the movement of the ultraviolet disinfection brush body on the surface L from the central position of the ultraviolet LEDs to the surface of the disinfectant;
6) and 5) determining the disinfection area per second at the designed moving speed of the ultraviolet disinfection brush body and the whole array N x M corresponding to the area, wherein N is the number of rows and M is the number of columns.
4. The ultraviolet LED disinfection brush of claim 1, further comprising: the proximity sensing circuit (3) is used for acquiring the distance L from the center position of the ultraviolet LED to the surface of the disinfectant.
5. The ultraviolet LED disinfection brush of claim 1, further comprising: the proximity sensing circuit (3) or the photoelectric sensor is characterized in that the photoelectric sensor at least comprises a photosensitive device, when the ultraviolet disinfection brush body disinfects the surface of a disinfectant, a receiving surface of the photosensitive device faces the surface of the disinfectant, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, an output voltage value is detected by the control circuit (2), the control circuit (2) controls the ultraviolet LED to emit light to work, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, and exceeds a threshold range, the control circuit (2) controls the ultraviolet LED to stop working so as to protect the safety of a user, and only the ultraviolet LED emits light to act on the surface of the disinfectant.
6. The ultraviolet LED disinfection brush of claim 1, further comprising: the proximity sensing circuit (3) or the photosensitive device and the LED luminous source, the LED luminous source provides a background light source, when the ultraviolet disinfection brush body disinfects the surface of the disinfectant, the receiving surface of the photosensitive device faces the surface of the disinfectant, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, the background light emitted by the LED luminous source influences the photosensitive device to a stable value, because the control circuit (2) controls the ultraviolet LED to work in a luminous mode, when the distance from the receiving surface of the photosensitive device to the surface of the disinfectant is L, and the background light influences the photosensitive device, the control circuit (2) controls the ultraviolet LED to stop working, so that the safety of a user is protected, and only the light emitting effect of the ultraviolet LED is exerted on the surface of the disinfectant.
7. The ultraviolet LED disinfection brush of claim 1, further comprising: the proximity sensing circuit (3) or the contact switch, the contact position of the contact switch is the distance L from the center position of the ultraviolet LED to the surface of the disinfectant, when the contact switch is triggered to send a signal, the control circuit (2) controls the ultraviolet LED to work, when the contact switch is not triggered and the signal is not sent, the control circuit (2) controls the ultraviolet LED to stop working, so that the safety of a user is protected, and only the ultraviolet LED emits light to act on the surface of the disinfectant.
8. The ultraviolet LED disinfection brush of claim 1, further comprising: the ultraviolet disinfection brush body is fixed in a cuboid shell (5), ultraviolet light transmitting glass (9) is arranged on the light emitting output surface of the ultraviolet light LED, the ultraviolet light transmitting glass (9) is made of quartz glass, and the distance from the outer surface of the quartz glass to the central surface of the ultraviolet light LED is the distance L from the central position of the ultraviolet light LED to the surface of the disinfection object; the rectangular shell (5) is made of aluminum alloy material, and the lamp panel (8) for fixing the ultraviolet LED is an aluminum substrate.
9. The ultraviolet LED disinfection brush of claim 8, further comprising: a handle is arranged on one side or the upper surface of the cuboid shell (5), a switch is arranged on the handle (7), and the switch is connected in series in a loop formed by the rechargeable battery (6), the ultraviolet LEDs (1) arranged in an array and the control circuit (2).
10. The ultraviolet LED disinfection brush of claim 1, further comprising: the control circuit (2) comprises at least: the device comprises a processor (12), a rechargeable battery (6), a booster circuit (11), an LED indicator lamp (10), a power conversion circuit (13) and a proximity sensing circuit (3); the ultraviolet LEDs (1) arranged in the array are distributed in nine groups, 4 are in a string, the ultraviolet LEDs in 4 strings are in 3 groups, the output of one path of booster circuit (11) is loaded in one group of the array, each group of loads comprises LED indicating lamps (10) connected in series, each path of booster circuit (11) controls an enabling end to be electrically connected with one path of output I/O port of a processor (12), the operation or the non-operation of the processor (12) is controlled through one path of output I/O port, the corresponding LED indicating lamp (10) is on during the operation, and the corresponding LED indicating lamp (10) is off during the non-operation.
CN202210084667.9A 2022-01-25 2022-01-25 Ultraviolet light LED disinfection brush that array was arranged Pending CN114246415A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210084667.9A CN114246415A (en) 2022-01-25 2022-01-25 Ultraviolet light LED disinfection brush that array was arranged

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210084667.9A CN114246415A (en) 2022-01-25 2022-01-25 Ultraviolet light LED disinfection brush that array was arranged

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CN114246415A true CN114246415A (en) 2022-03-29

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024049741A1 (en) * 2022-09-01 2024-03-07 Nittany Solutions Group, Llc. Ultraviolet sanitizer with individually-controlled uv emission interface cells

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024049741A1 (en) * 2022-09-01 2024-03-07 Nittany Solutions Group, Llc. Ultraviolet sanitizer with individually-controlled uv emission interface cells

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