CN211962682U - A kind of ultraviolet sterilization equipment - Google Patents

Abstract

The utility model discloses an ultraviolet sterilization device, which comprises a base, a lamp body is rotatably arranged above the base, an LED light source for irradiating a visible ultraviolet beam is arranged in the lamp body, and an LED light source is arranged in the base for driving the lamp body to rotate. The automatic rotating rotary drive mechanism, the lamp body is provided with a safety control device for controlling the automatic start and stop of the LED light source to prevent the visible ultraviolet beam irradiated by the LED light source from irradiating the human body; the utility model can use the visible ultraviolet beam irradiated by the LED light source. It can inhibit bacteria and sterilize the room, and can comprehensively scan and sterilize the room, improve the irradiation range, and then improve the sterilization work efficiency. It can effectively kill a variety of bacteria, and can decompose and harmless treatment of toxins released by bacteria or fungi.

Description

A kind of ultraviolet sterilization equipment

technical field

The utility model relates to a sterilization device, in particular to an ultraviolet ray with simple structure, convenient use, suitable for household use, limited protection of the human body, wide irradiation range, comprehensive sterilization work in the room, and high sterilization efficiency A sterilization device belongs to the technical field of sterilization lamps.

Background technique

Ultraviolet light sterilization is the use of cells that have the maximum absorption of ultraviolet rays with a wavelength of 250 to 270 nm. The absorbed ultraviolet rays act on the genetic material (deoxyribonucleic acid, DNA) of cells. The absorption of base pairs in DNA causes genetic material to mutate, making bacteria immediately die or unable to reproduce offspring, thereby achieving the purpose of sterilization.

The commonly used ultraviolet germicidal lamps belong to a low-pressure mercury lamp. Like ordinary fluorescent lamps, the low-pressure mercury lamps are excited by lower mercury vapor pressure to emit ultraviolet rays; the difference is that the lamps of fluorescent lamps are made of ordinary glass, and sterilization The lamp tube of the low-pressure mercury lamp is generally made of quartz glass, because quartz glass has a high transmittance (up to 80%-90%) for all ultraviolet bands, and is the best material for germicidal lamps; The main spectral lines are 254nm and 185nm; 254nm ultraviolet rays kill bacteria by irradiating the DNA of microorganisms, and 185nm ultraviolet rays can turn oxygen in the air into ozone, which has a strong oxidizing effect and can effectively kill bacteria.

However, the lamp tube of the germicidal low-pressure mercury lamp contains mercury, and there is a potential danger of leakage of mercury. Therefore, the low-pressure mercury lamp has a potential threat to the health of the end user, and its mercury lamp will be completely banned in 2020; and the low-pressure mercury lamp The ultraviolet light intensity declines quickly and the life span is not long. With the increase of the service life, the ultraviolet light intensity will gradually decline to 70% to 80% of the initial value. The available ultraviolet light intensity of the germicidal lamp is low, that is, the luminous efficiency is low.

And long-term ultraviolet irradiation is harmful to the human body, which limits the household problems of ultraviolet germicidal lamps, and when it is used at home, it is necessary to find users and their personnel to use them when they are not indoors, so it is difficult to produce sterilization effect, and the function is single, The existing ultraviolet germicidal lamp has a small irradiation range, and cannot sterilize every corner of the room, thereby reducing the practicability.

Utility model content

The main technical problem to be solved by the utility model is to provide an ultraviolet sterilization device with simple structure, convenient use, suitable for household use, limited protection of the human body, wide irradiation range, comprehensive sterilization work in the room, and high sterilization efficiency.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions:

An ultraviolet sterilization equipment includes a base, a lamp body is rotatably arranged above the base, an LED light source for irradiating a visible ultraviolet light beam is arranged in the lamp body, and a rotary drive for driving the lamp body to rotate automatically in degrees is arranged in the base The lamp body is provided with a safety control device for controlling the automatic start and stop of the LED light source to prevent the visible ultraviolet beam irradiated by the LED light source from irradiating the human body.

The following is the further optimization of the present invention to the above-mentioned technical scheme:

One end of the lamp body close to the base is integrally connected with a rotating shaft, and the rotating shaft penetrates the upper end face of the base and is rotatably installed in the base.

Further optimization: the rotary drive mechanism includes a rotary support table arranged in the base, a support bearing is fixedly installed on the rotary support table, one end of the rotary shaft located in the base is fixedly connected to the support bearing, and a drive assembly is arranged on the rotary support table.

Further optimization: the drive assembly includes a micro-motor fixedly installed on the rotating support table, and the output end of the micro-motor is drive-connected to the rotating shaft through the transmission assembly.

Further optimization: the safety control device includes an infrared human body sensor switch that is fixedly installed on the lamp body to sense whether there is a human body in the visible ultraviolet light beam irradiated by the LED light source, and the signal output end of the infrared human body sensor switch is connected with the LED light source. The control terminal is electrically connected.

Further optimization: the LED light source includes a circuit substrate fixedly installed in the lamp body, and a UV-LED module that emits visible ultraviolet light beams is arranged on the circuit substrate.

Further optimization: the UV-LED module includes UVA-LED lamp beads and UVC-LED lamp beads, and the UVA-LED lamp beads and UVC-LED lamp beads are respectively mixed and arranged on the circuit substrate.

Further optimization: the wavelength band of the UVA-LED lamp bead is 315-400nm, and the wavelength band of the UVC-LED lamp bead is 250-280nm.

Further optimization: the lamp tube body and on both sides of the circuit substrate are respectively coated with a photocatalyst layer, and the photocatalyst coating is made of nano-scale titanium dioxide.

Further optimization: a radiator is arranged in the lamp tube body behind the circuit substrate, and the rotating support table is provided with an input device for introducing external air into the lamp tube body, so that the external air can cool the radiator and purify the external air. gas components.

The utility model adopts the above technical scheme, when in use, the power distribution box can be connected to the external power supply through the power socket on the power distribution box and the external power cord, and then the micro motor and the micro air blower can be started by touching the control panel. Circuit substrate, UVA-LED lamp beads and UVC-LED lamp beads can light up after the circuit substrate is energized, so that the visible ultraviolet light beam emitted by the LED light source passes through the transparent glass panel and is irradiated through the light transmission port for Sterilize and disinfect indoors.

After the micro motor is started, it outputs power and drives the rotating shaft through the transmission component to drive the lamp body to rotate 360° to scan the room, so that the ultraviolet beam irradiation range is wide, and the room can be sterilized in all directions.

When the infrared human body sensor switch detects that there is a human body in the visible ultraviolet light beam irradiated by the LED light source, the infrared human body sensor switch sends a signal and controls the LED light source to turn off, which can effectively protect the indoor personnel and prevent the ultraviolet light beam from irradiating the human body. The damage occurs, and then the lamp body continues to be driven by the micro motor to rotate, and the rotation of the lamp body drives the visible ultraviolet beam irradiated by the LED light source to move away from the position of the human body, and the infrared human body induction switch sends a signal and controls the LED light source. Turn on, continue to irradiate the visible ultraviolet beam and scan the room.

After the micro air blower is started, it is used to blow the external air into the lamp tube body. At this time, the external air exchanges heat with the radiator in the lamp tube body, and then the hot air of the lamp tube body is discharged into the external atmosphere through the air outlet, thereby realizing The heat dissipation of the circuit substrate, and the wavelength bands generated by the UVA-LED lamp beads and UVC-LED lamp beads, irradiate the photocatalyst layer to produce a strong catalytic degradation function, which can effectively degrade the toxic and harmful gases in the air. When the air blower sucks the outside air into the lamp tube body, the air in the lamp tube body can pass through the photocatalyst to achieve the effect of sterilization and purification of the air.

The utility model adopts the above-mentioned technical scheme, which is ingenious in design and reasonable in structure. The visible ultraviolet light beam irradiated by the LED light source can inhibit bacteria and sterilize indoors, and has a very high appearance impact, so that customers can intuitively experience the effect of disinfection and sterilization. It can fully scan and sterilize the room, improve the irradiation range, and then improve the sterilization work efficiency. When the ultraviolet beam irradiates the photocatalyst layer, it can produce a strong catalytic degradation function, which can effectively degrade the toxic and harmful gases in the air. It can decompose and harmlessly treat the toxins released by bacteria or fungi, and also has the functions of removing formaldehyde, deodorizing, anti-fouling, and purifying the air.

Moreover, it has extremely high safety, and can avoid the problem that the ultraviolet beam falls on the human body or animal body and causes damage when the ultraviolet beam is in the rotating scanning chamber.

The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

1 is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

Fig. 2 is the general sectional view of Fig. 1;

3 is a schematic structural diagram of a rotary drive mechanism in Embodiment 1 of the present invention;

4 is a schematic diagram of the overall structure of the lamp body in Embodiment 1 of the present invention;

FIG. 5 is a schematic structural diagram of a rotary drive mechanism in Embodiment 2 of the present invention.

In the picture: 1-base; 11-power distribution box; 12-USB interface; 2-light tube body; 21-light transmission port; 22-transparent glass panel; 24-concentrator; 25-air outlet; 3-LED light source ;31-circuit substrate;32-UVA-LED lamp beads;33-UVC-LED lamp beads;4-rotation shaft;5-rotation support table;51-support bearing;52-miniature motor;53-drive gear;54- Driven gear; 6-radiator; 7-miniature air fan; 8-photocatalyst layer; 9-infrared human body sensor switch; 10-touch control panel.

Detailed ways

Example 1: As shown in Figures 1-4, an ultraviolet sterilization equipment includes a base 1, and a lamp body 2 is rotatably arranged above the base 1, and a lamp body 2 is arranged in the lamp body 2 for irradiating visible ultraviolet rays. The LED light source 3 of the light beam, the base 1 is provided with a rotary drive mechanism for driving the lamp body 2 to automatically rotate 360°, and the lamp body 2 is provided with a control for the LED light source 3 to automatically start and stop to avoid the LED light source 3 A safety control device in which the irradiated visible ultraviolet beam is irradiated to the human body.

The overall structure of the base 1 is in the shape of a truncated cone, and a non-slip pad is arranged below the base 1 to increase friction, so as to realize the fixed placement of the ultraviolet sterilization equipment.

The overall structure of the lamp body 2 is cylindrical, the overall structure of the lamp body 2 is made of PC material, and the PC material is an opaque material, and an installation cavity is provided in the lamp body 2 .

In this way, the overall structure of the lamp tube body 2 can be simplified, and the lamp tube body 2 made of PC material is used, so that the lamp tube body 2 is light and convenient to use as a whole.

The overall structure of the lamp body 2 can also be a square column shape or a polygon column shape and other regular column bodies.

The LED light source 3 includes a circuit substrate 31 fixedly installed in the lamp body 2 , and a UV-LED module emitting visible ultraviolet light beams is arranged on the circuit substrate 31 .

The UV-LED module includes UVA-LED lamp beads 32 and UVC-LED lamp beads 33 , and the UVA-LED lamp beads 32 and UVC-LED lamp beads 33 are respectively mixed and arranged on the circuit substrate 31 .

The wavelength band of the UVA-LED lamp beads 32 is 315-400 nm, and the wavelength band of the UVC-LED lamp beads 33 is 250-280 nm.

In this way, the circuit substrate 31 can be used to install the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33, and the light in the 315-400nm band emitted by the UVA-LED lamp beads 32 can inhibit bacteria and realize the bacteriostatic function. The light in the 250-280nm band emitted by the UVC-LED lamp beads 33 can sterilize and realize the sterilization function, thereby ensuring the effect of continuous bacteriostasis and sterilization.

A light-transmitting port 21 is opened on the side of the lamp body 2 opposite to the UV-LED module on the circuit substrate 31 , and a transparent glass panel 22 is fixedly arranged at the light-transmitting port 21 on the lamp body 2 .

The visible ultraviolet light beam emitted by the UV-LED module on the circuit substrate 31 can pass through the transparent glass panel 22 and be irradiated through the light transmission port 21, and then the visible ultraviolet light beam is used to sterilize and disinfect the room.

Condensing plates 24 are respectively disposed in the lamp body 2 and located around the circuit substrate 31 , and the condensing plates 24 are respectively disposed inclined to one side of the circuit substrate 31 .

The condensing plate 24 is coated with a condensing powder layer or is provided with a condensing lens.

In this way, when the visible ultraviolet light beam emitted by the UV-LED module on the circuit substrate 31 is irradiated on the condensing plate 24, the concentrating plate 24 continuously reflects the ultraviolet light beam, and finally emits from the transparent glass panel 22 of the cover body, and passes through the condensing plate 24. The reflected light of the light plate 24 is compressed and gathered to form a relatively concentrated beam, which greatly reduces the diffusion of ultraviolet energy.

An end of the lamp body 2 close to the base 1 is integrally connected with a rotating shaft 4 , and the rotating shaft 4 penetrates the upper end surface of the base 1 and is rotatably installed in the base 1 .

The rotary drive mechanism includes a rotary support table 5 that is fixedly arranged in the base 1 , a support bearing 51 is fixedly installed on the rotary support table 5 , and one end of the rotary shaft 4 located in the base 1 is connected to the inner ring of the support bearing 51 . For fixed connection, a drive assembly is provided on the rotating support table 5 .

The drive assembly includes a micro-motor 52 fixedly mounted on the rotating support table 5 , and the output end of the micro-motor 52 is drive-connected to the rotating shaft 4 through a transmission assembly.

The transmission assembly includes a drive gear 53 fixedly mounted on the output end of the micro-motor 52 , a driven gear 54 is fixedly mounted on the rotating shaft 4 at a position corresponding to the drive gear 53 , and the drive gear 53 is connected to the driven gear 53 . The gear 54 is engaged in meshing connection.

The micro motor 52 is energized and output power can drive the drive gear 53 to rotate, the drive gear 53 rotates and drives the driven gear 54 meshed with it to rotate, and the driven gear 54 rotates and can drive the lamp body 2 to rotate 360° through the rotating shaft 4 .

In this way, the output power of the micro motor 52 and the transmission of the transmission assembly can drive the rotating shaft 4 and the lamp body 2 to rotate 360°, and when the lamp body 2 rotates 360°, it can drive the UVA-LED lamp beads 32 and The visible ultraviolet light beam emitted by the UVC-LED lamp beads 33 rotates.

The support bearing 51 is a conductive bearing with its own conductive ring, and the inner light collecting plate 24 of the lamp body 2 and the safety control device are respectively electrically connected to the support bearing 51 .

Then, the visible ultraviolet beams emitted by the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33 can scan the room 360° along the axis of the lamp body 2, so that the ultraviolet beam irradiation range is wide, and the room can be comprehensively scanned. High-efficiency sterilization makes the ultraviolet sterilization equipment flexible and convenient to use, and has high sterilization work efficiency.

A through hole is formed in the inside of the rotating shaft 4 , and the through hole of the rotating shaft 4 is respectively communicated with the inner cavity of the lamp body 2 and the inner cavity of the rotating support table 5 .

A heat dissipation component for dissipating heat to the circuit substrate 31 is fixedly disposed in the lamp tube body 2 , and the heat dissipation component includes a heat sink 6 fixedly disposed behind the circuit substrate 31 .

The rotating support table 5 is provided with an air delivery assembly for introducing external air into the lamp tube body 2 to cool the radiator 6 .

Described gas transmission assembly comprises the miniature air transmission fan 7 that is fixedly installed in the rotary support table 5, and the air inlet end of the micro air transmission fan 7 passes through the air inlet opened on the rotary support table 5 and the base 1 and the external atmosphere. The air outlet end of the micro air blower 7 is communicated with the through hole in the rotating shaft 4 .

An air outlet 25 is opened above the lamp body 2 and communicated with the cavity in the lamp body 2 , and the cavity in the lamp body 2 communicates with the outside atmosphere through the air outlet 25 .

Described miniature air conveying fan 7 is an induced draft fan, and described miniature air conveying fan 7 works for sucking outside air into micro air conveying fan 7, and then micro air conveying fan 7 blows the outside air to the rotating shaft through the air outlet end. 4, and then into the lamp body 2. At this time, the external air exchanges heat with the radiator 6 in the lamp body 2, so as to take away the heat on the radiator 6. The hot air after the heat exchange performed by the radiator 6 is discharged into the external atmosphere through the air outlet 25 , thereby realizing heat dissipation to the circuit substrate 31 .

Photocatalyst layers 8 are respectively coated on the lamp body 2 and located on both sides of the circuit substrate 31 , and the photocatalyst layers 8 are made of nano-scale titanium dioxide.

The wavelength bands respectively generated by the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33 can catalyze nano-scale titanium dioxide to produce a strong catalytic degradation function.

In this way, through the wavelength bands generated by the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33 respectively, when the nano-scale titanium dioxide is irradiated, the nano-scale titanium dioxide has a strong catalytic degradation function, which can effectively degrade the toxic and harmful gases in the air. , and can effectively kill a variety of bacteria, and can decompose and harmless treatment of toxins released by bacteria or fungi; at the same time, it also has the functions of removing formaldehyde, deodorizing, anti-fouling, and purifying the air.

And when the external air is sucked into the lamp body 2 by the micro air blower 7, the air in the lamp body 2 can pass through the photocatalyst to realize the sterilization and purification of the air, and after calculation, 10 minutes can be used. Circulate the air in the living room of 30 square meters.

A power distribution box 11 is fixedly arranged in the base 1 , and a power socket is provided on the power distribution box 11 , and the power socket is fixedly installed on the base 1 .

The power distribution box 11 can be connected to an external power source through a power socket and a power cord.

The power supply terminals of the safety control device, the circuit substrate 31 , the micro motor 52 and the micro air blower 7 are all electrically connected to the power distribution box 11 .

The power distribution box 11 is used to supply power to the safety control device, the circuit board 31 , the micro motor 52 and the micro air blower 7 .

The safety control device includes an infrared human body sensing switch 9 for sensing whether there is a human body in the visible ultraviolet beam width irradiated by the LED light source 3, and the infrared human body sensing switch 9 is fixedly installed on the lamp body 2 and is located at the light-transmitting port. 21 above.

The signal output end of the infrared human body sensor switch 9 is electrically connected to the control end of the circuit substrate 31 .

When the lamp body 2 rotates 360°, the infrared human body sensor switch 9 constantly detects whether there is a human body in the visible ultraviolet light beam irradiated by the LED light source 3 , and transmits the detection signal to the circuit substrate 31 .

When the infrared human body sensor switch 9 detects that there is a human body in the visible ultraviolet light beam irradiated by the LED light source 3, the infrared human body sensor switch 9 sends a signal and transmits it to the circuit substrate 31. After receiving the signal, the circuit substrate 31 sends a control signal to make the LED light source 3 It can be turned off, thereby preventing the UV beam from falling on the human body and being harmful to the human body when the lamp body 2 rotates 360° to drive the visible ultraviolet beam irradiated by the LED light source 3 to scan the room, thereby improving the use effect and effectively protecting the indoor. personnel.

When the LED light source 3 is turned off, the lamp body 2 continues to be driven by the micro motor 52 to rotate, and the rotation of the lamp body 2 drives the visible ultraviolet light beam emitted by the LED light source 3 to move away from the position of the human body, and the infrared human body sensor switch 9 When it is detected that there is no human body in the visible ultraviolet light beam radiated by the LED light source 3, the infrared human body sensor switch 9 sends a signal and transmits it to the circuit substrate 31. After the circuit substrate 31 receives the signal, it sends a control signal to turn on the LED light source 3 and continue to emit visible ultraviolet rays. The beam then continues to scan the room to conduct a comprehensive sterilization of the room.

A touch control panel 10 is fixed on the base 1 at a position close to the upper end surface. The touch control panel 10 is electrically connected to the control terminals of the micro motor 52 , the micro air blower 7 and the circuit substrate 31 respectively.

The specific structure of the touch control panel 10 is the same as that in the prior art, which can be directly purchased in the market, and has been known to those skilled in the art, and will not be repeated here.

The touch control panel 10 can control the start and stop of the micro motor 52 , the micro air blower 7 and the circuit substrate 31 .

A plurality of USB ports 12 are fixedly arranged on the base 1 , and the power supply terminals of the USB ports 12 are electrically connected with the power distribution box 11 .

The USB interface 12 can be connected to a USB power cord, and is used to charge digital devices such as mobile phones and tablets, thereby improving the overall practicability.

The electrical connection between the circuit substrate 31 and the touch control panel 10 and the power distribution box 11 can be electrically connected through a conductive bearing with its own conductive ring.

When in use, the power distribution box 11 can be connected to the external power supply through the power socket on the power distribution box 11 and the external power cord, and then the micro motor 52, the micro air blower 7 and the circuit substrate 31 can be started by touching the control panel 10. After the circuit substrate 31 is powered on, the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33 can light up, so that the visible ultraviolet light beam emitted by the LED light source 3 passes through the transparent glass panel 22 and passes through the light transmission port. 21 is irradiated for sterilization and disinfection indoors.

After the micro motor 52 is started, it outputs power and drives the rotating shaft 4 through the transmission assembly to drive the lamp body 2 to rotate 360°. When the lamp body 2 rotates 360°, it can drive the visible ultraviolet light beam emitted by the LED light source 3 to rotate to scan the room, so that the ultraviolet light beam can irradiate a wide range and realize all-round sterilization of the room.

When the infrared human body sensor switch 9 detects that there is a human body in the visible ultraviolet light beam irradiated by the LED light source 3, the infrared human body sensor switch 9 sends a signal and transmits it to the circuit substrate 31. After receiving the signal, the circuit substrate 31 sends a control signal to make the LED light source 3 By turning it off, it can prevent the visible ultraviolet beam irradiated by the LED light source 3 from falling on the human body and causing damage to the human body, thereby improving the use effect and effectively protecting indoor personnel.

When the LED light source 3 is turned off, the lamp body 2 continues to be driven by the micro motor 52 to rotate, and the rotation of the lamp body 2 drives the visible ultraviolet light beam emitted by the LED light source 3 to move away from the position of the human body, and the infrared human body sensor switch 9 When it is detected that there is no human body in the visible ultraviolet light beam radiated by the LED light source 3, the infrared human body sensor switch 9 sends a signal and transmits it to the circuit substrate 31. After the circuit substrate 31 receives the signal, it sends a control signal to turn on the LED light source 3 and continue to emit visible ultraviolet rays. The beam then continues to scan the room to conduct a comprehensive sterilization of the room.

After the micro air blower 7 is started, it is used to suck the outside air into the micro air blower 7 and blow it into the lamp body 2 through the through hole of the rotating shaft 4. At this time, the outside air is in the lamp body 2 and the radiator 6. After heat exchange is performed, the hot air of the lamp body 2 is discharged into the external atmosphere through the air outlet 25 , thereby realizing heat dissipation to the circuit board 31 .

And the wavelength bands generated by the UVA-LED lamp beads 32 and the UVC-LED lamp beads 33 are irradiated on the photocatalyst layer 8 to produce a strong catalytic degradation function, which can effectively degrade the toxic and harmful gases in the air. Formaldehyde, deodorant, antifouling, and air purification functions.

And when the external air is sucked into the lamp body 2 by the micro air blower 7, the air in the lamp body 2 can pass through the photocatalyst to achieve the effect of sterilization and purification of the air. It can circulate the air in the living room of 30 square meters.

Embodiment 2: As shown in FIG. 5 , the structure shown in FIG. 5 can also be adopted for the rotary drive mechanism in the above-mentioned embodiment 1. The rotary drive mechanism includes a rotary support table 5 fixedly installed in the base 1 . A turntable 111 is rotatably installed above the table 5 , and the turntable 111 is rotatably connected to the rotary support table 5 through a support bearing 51 .

A micro motor 52 is fixedly arranged in the rotating support table 5 , and the power output end of the micro motor 52 penetrates through the upper end surface of the rotating support table 5 and is fixedly connected to the center of the turntable 111 .

The output power of the micro motor 52 drives the turntable 111 to rotate through the power output end, thereby driving the rotating shaft 4 to rotate, and the rotating shaft 4 rotates to drive the lamp body 2 to rotate as a whole.

The upper end surface of the rotating support table 5 and the turntable 111 are respectively provided with ventilation holes 112 that communicate with the inner cavity of the rotating support table 5. The micro air blower 7 works to suck the outside air into the interior of the rotating support table 5. Then, the outside air is drawn into the lamp body 2 through the ventilation hole 112 and exchanges heat with the radiator 6 in the lamp body 2 .

For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, changes, modifications, substitutions and alterations to the embodiments still fall within the scope of the present invention within the scope of protection.

Claims (10)

1. An ultraviolet sterilization device, includes base (1), its characterized in that: the lamp tube body (2) is rotatably arranged above the base (1), the LED light source (3) used for irradiating visible ultraviolet light beams is arranged in the lamp tube body (2), the rotary driving mechanism used for driving the lamp tube body (2) to automatically rotate by 360 degrees is arranged in the base (1), and the safety control device used for controlling the LED light source (3) to automatically start and stop to avoid the visible ultraviolet light beams irradiated by the LED light source (3) from irradiating a human body is arranged on the lamp tube body (2).

2. The uv sterilization apparatus according to claim 1, wherein: one end of the lamp tube body (2) close to the base (1) is integrally connected with a rotating shaft (4), and the rotating shaft (4) penetrates through the upper end face of the base (1) and is rotatably installed in the base (1).

3. The uv sterilization apparatus according to claim 2, wherein: the rotary driving mechanism comprises a rotary supporting platform (5) arranged in the base (1), a supporting bearing (51) is fixedly mounted on the rotary supporting platform (5), one end of the rotary shaft (4) located in the base (1) is fixedly connected with the supporting bearing (51), and a driving assembly is arranged on the rotary supporting platform (5).

4. The ultraviolet sterilization apparatus according to claim 3, wherein: the driving assembly comprises a micro motor (52) fixedly mounted on the rotary supporting platform (5), and the output end of the micro motor (52) is in transmission connection with the rotary shaft (4) through a transmission assembly.

5. The ultraviolet sterilization apparatus according to claim 4, wherein: the safety control device comprises an infrared human body induction switch (9) which is fixedly installed on the lamp tube body (2) and used for inducing whether a human body exists in a visible ultraviolet light beam width irradiated by the LED light source (3), and the signal output end of the infrared human body induction switch (9) is electrically connected with the control end of the LED light source (3).

6. The ultraviolet sterilization apparatus according to claim 5, wherein: the LED light source (3) comprises a circuit substrate (31) fixedly installed in the lamp tube body (2), and a UV-LED module which emits visible ultraviolet light beams is arranged on the circuit substrate (31).

7. The uv sterilization apparatus according to claim 6, wherein: the UV-LED module comprises UVA-LED lamp beads (32) and UVC-LED lamp beads (33), and the UVA-LED lamp beads (32) and the UVC-LED lamp beads (33) are respectively arranged on the circuit substrate (31) in a mixed mode.

8. The uv sterilization apparatus according to claim 7, wherein: the wave band of the UVA-LED lamp beads (32) is 315-400nm, and the wave band of the UVC-LED lamp beads (33) is 250-280 nm.

9. The uv sterilization apparatus according to claim 8, wherein: the lamp tube body (2) is coated with photocatalyst layers (8) on two sides of the circuit substrate (31), and the photocatalyst layers (8) are made of nano-scale titanium dioxide.

10. The uv sterilization apparatus according to claim 9, wherein: a radiator (6) is arranged behind the circuit substrate (31) in the lamp tube body (2), and an air transmission assembly used for introducing external air into the lamp tube body (2) to enable the external air to cool and radiate the radiator (6) and purify the external air is arranged in the rotary supporting table (5).

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