WO2021227141A1

WO2021227141A1 - Ultraviolet disinfection module

Info

Publication number: WO2021227141A1
Application number: PCT/CN2020/093457
Authority: WO
Inventors: 马春印; 靳竹
Original assignee: 广东炬盛德激光工程技术有限公司
Priority date: 2020-05-11
Filing date: 2020-05-29
Publication date: 2021-11-18
Also published as: CN111617274A

Abstract

An ultraviolet disinfection module, comprising a lamp holder (10), a PCB (20), several ultraviolet disinfection light sources (30), and an ultraviolet light transmitting protective cover (40). The lamp holder (10) is provided with a protective cover connecting portion (102); the ultraviolet light transmitting protective cover (40) is connected to the protective cover connecting portion (102), and the ultraviolet light transmitting protective cover (40) and the lamp holder (10) together form a light source accommodating cavity; the PCB (20) is provided inside the lamp holder (10); several light source connecting portions (202) are provided on one surface of the PCB (20); the PCB (20) is connected to a power supply connecting wire (212); the power supply connecting wire (212) extends out of the lamp holder (10); the ultraviolet disinfection light source (30) is connected to the light source connecting portion (202) of the PCB (20), and the ultraviolet disinfection light source (30) is located in the light source accommodating cavity. According to the ultraviolet disinfection module, the ultraviolet light transmitting protective cover (40) and the lamp holder (10) together form the light source accommodating cavity, the ultraviolet disinfection light source (30) is isolated from the external environment, and the ultraviolet disinfection light source (30) is protected against collision from the outside.

Description

Ultraviolet disinfection module

Technical field

The invention relates to the technical field of ultraviolet disinfection, in particular to an ultraviolet disinfection module.

Background technique

In the field of ultraviolet disinfection technology, mercury lamps and LED lamps are the most common. Among them, because the light intensity of UV LED lamps is not high, they are generally used in the form of lamp strips or lamp panels. Damage, the replacement cost is very high; and if the mercury lamp breaks during use, it will cause mercury leakage, and the mercury vapor contained in it will be harmful to the human body. Therefore, the ultraviolet light mercury lamp has a great safety hazard in the use. Therefore, the application scenarios of UV disinfection are greatly restricted.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings and deficiencies in the prior art and provide an ultraviolet disinfection module.

An embodiment of the present invention provides an ultraviolet disinfection module, including:

A lamp holder, the lamp holder is provided with a protective cover connecting part;

PCB board, the PCB board is arranged inside the lamp holder, one side of the PCB board is provided with a number of light source connection parts, the PCB board is connected with a power connection line, and the power connection line extends out of the lamp Outside the seat

A plurality of ultraviolet disinfection light sources, the ultraviolet disinfection light source is connected with the light source connection part of the PCB board;

Ultraviolet light transmitting protective cover, the ultraviolet light transmitting protective cover is connected to the connecting part of the protective cover, and forms a light source accommodating cavity together with the lamp holder, and the plurality of ultraviolet disinfection light sources are located in the light source accommodating cavity Inside.

Compared with the prior art, the ultraviolet disinfection module of the present invention forms a light source accommodating cavity through the ultraviolet light-transmitting protective cover and the lamp holder, which isolates the ultraviolet disinfection light source from the external environment and protects the ultraviolet disinfection The light source prevents the UV disinfection light source from being directly impacted from the outside; and by setting the PCB board, it can be connected and powered to only one UV disinfection light source, or it can be connected and separately supplied to multiple UV disinfection light sources at the same time, which is suitable for more different Application scenarios.

In one embodiment, the PCB board includes a power supply module, a central processing unit, a light source driving module, and a light source state detection module; the power supply module is connected to the power connection line, and the central processing unit is connected to the light source driving module Are respectively electrically connected to the power supply module, the light source drive module is signally connected to the central processing unit, the light source drive module is electrically connected to the ultraviolet disinfection light source, the light source state detection module is signaled to the central processing unit Connected, the light source state detection module detects the working state of the ultraviolet disinfection light source, and sends a detection signal to the central processing unit. The working state of the ultraviolet disinfection light source is detected, and the ultraviolet disinfection light source that is damaged or working abnormally is detected in time, which is convenient for users to repair and replace.

In one embodiment, the light source state detection module is a voltage detection module, the voltage detection module detects the working voltage of the ultraviolet disinfection light source, and sends a voltage detection signal to the central processing unit; or, the light source state detection The module is a current detection module, the current detection module detects the working current of the ultraviolet disinfection light source, and sends a current detection signal to the central processing unit. The working state of the ultraviolet disinfection light source is detected by voltage or current.

In one embodiment, the ultraviolet disinfection light source is an ultraviolet mercury lamp and/or an ultraviolet LED unit. UV disinfection effect is good.

In one embodiment, the inside of the lamp holder is filled with sealant, and the PCB board is encapsulated in the inside of the lamp holder by the sealant. Good water resistance, reduces the influence of water, moisture, etc., and reduces the possibility of short circuit.

In an embodiment, the light source connecting portion protrudes outside the sealant. It is convenient to disassemble and assemble the ultraviolet disinfection light source.

In one embodiment, the connection between the light source connection part and the ultraviolet disinfection light source is filled with a sealing material. The connection is further stabilized, and the waterproofness of the connection between the light source connection part and the ultraviolet disinfection light source is improved.

In one embodiment, it further includes a UVC ultraviolet sensor module, the UVC ultraviolet sensor module is arranged in the light source accommodating cavity, the UVC ultraviolet sensor module is connected with the central processing unit of the PCB board, so The UVC ultraviolet sensor module sends an ultraviolet light detection signal to the central processing unit. By detecting the intensity of the ultraviolet light, the working state of the ultraviolet disinfection light source is detected.

In one embodiment, the back of the lamp holder is provided with an opening; the cover is buckled at the opening, the cover and the lamp holder form a circuit accommodating cavity, and the PCB board is located at the opening. The circuit accommodating cavity; the sealant is filled in the circuit accommodating cavity. It is convenient to fill the sealant and encapsulate the PCB board.

In one embodiment, a first cable connection seat is provided on the PCB, a second cable connection seat is provided on the side of the cover away from the lamp seat, the first cable connection seat and the second cable connection seat They are all multi-core cable connection sockets, the first cable connection socket and the second cable connection socket are connected by a multi-core cable; the first cable connection socket is connected to the central processing unit, and the second cable connection socket is also Pluggable connection with the external multi-core cable. Facilitate its electrical connection and signal connection.

In order to understand the present invention more clearly, the specific embodiments of the present invention will be described below in conjunction with the accompanying drawings.

Description of the drawings

FIG. 1 is a schematic structural diagram of an ultraviolet disinfection module according to an embodiment of the present invention.

Fig. 2A is a circuit diagram of an ultraviolet disinfection module according to an embodiment of the present invention.

2B is a schematic diagram of signal transmission of an ultraviolet disinfection module according to an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of an ultraviolet disinfection module according to an embodiment of the present invention.

4A is a schematic diagram of the connection between the PCB board of the ultraviolet disinfection module and the ultraviolet disinfection light source according to an embodiment of the present invention.

4B is a schematic diagram of the connection between the PCB board of the ultraviolet disinfection module and the ultraviolet disinfection light source according to an embodiment of the present invention.

4C is a schematic diagram of the connection between the PCB board of the ultraviolet disinfection module and the ultraviolet disinfection light source according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to Figures 1-4, in which Figure 1 is a schematic structural diagram of an ultraviolet disinfection module according to an embodiment of the present invention; Figure 2A is a circuit diagram of an ultraviolet disinfection module according to an embodiment of the present invention; Figure 2B is an embodiment of the present invention The signal transmission schematic diagram of the ultraviolet disinfection module; FIG. 3 is a schematic structural diagram of the ultraviolet disinfection module according to an embodiment of the present invention; 4B is a schematic diagram of the connection between the PCB board of the UV disinfection module and the UV disinfection light source according to an embodiment of the present invention; Figure 4C is a schematic diagram of the connection between the PCB board of the UV disinfection module and the UV disinfection light source according to an embodiment of the present invention.

Example 1

As shown in FIG. 1, the ultraviolet disinfection module according to an embodiment of the present invention includes a lamp holder 10, a PCB board 20, a plurality of ultraviolet disinfection light sources 30, and an ultraviolet light-transmitting protective cover 40. Wherein, the PCB board 20 is arranged inside the lamp socket 10; the ultraviolet disinfection light source 30 is connected to the PCB board 20; the ultraviolet light-transmitting protective cover 40 is connected to the lamp socket 10 and is connected to the lamp socket 10; The lamp holders 10 jointly form a light source accommodating cavity, and the ultraviolet disinfection light source is located in the light source accommodating cavity.

In this embodiment, the lamp holder 10 has a hollow cylindrical structure, the lamp holder is provided with a protective cover connection 102, and the interior of the lamp holder 10 is filled with sealant, and the PCB board 20 passes through the The sealant is encapsulated inside the lamp holder 10. Preferably, a hook is provided on the outer surface of the lamp holder 10.

In this embodiment, one side of the PCB board 20 is provided with a number of light source connection parts 202, and the light source connection parts 202 are arranged in a matrix on the PCB board 20 or staggered on the PCB board 20 , The ultraviolet disinfection light source 30 is connected to the light source connection portion 202 of the PCB board 20. In this embodiment, the number of the ultraviolet disinfection light source 30 and the light source connecting portion 202 are both two.

Preferably, the light source connecting portion 202 extends outside the sealant, and the connection between the light source connecting portion 202 and the ultraviolet disinfection light source 30 is filled with a sealing material. The PCB board 20 is also connected with a power connection line 212, and the power connection line 212 extends out of the lamp holder 10.

In this embodiment, the ultraviolet disinfection light source 30 may be an ultraviolet mercury lamp or an ultraviolet LED unit, or a combination of an ultraviolet mercury lamp and an ultraviolet LED unit. Preferably, the ultraviolet disinfection light source 30 emits ultraviolet light with a wavelength of 200 nm to 300 nm; preferably, the ultraviolet disinfection light source 30 is an ultraviolet mercury lamp, and the electrodes of the ultraviolet mercury lamp are all located in connection with the light source At one end connected to the portion 202, the ultraviolet light mercury lamp includes but is not limited to a U-shaped mercury lamp.

In this embodiment, the ultraviolet light-transmitting protective cover 40 is connected to the connecting portion 102 of the protective cover, and forms a light source housing cavity together with the lamp holder 10, and the ultraviolet light disinfecting light source is located in the light source housing.置内内。 In the cavity. The material of the ultraviolet light transmitting protective cover 40 is ultraviolet light transmitting glass, such as quartz glass, ultraviolet transmitting black glass, soda lime silicon shortwave ultraviolet transmitting glass and soda lime ultraviolet transmitting glass, etc. Preferably, the ultraviolet light transmitting protective cover The material of 40 is quartz glass. Preferably, the connection between the ultraviolet light-transmitting protective cover 40 and the connecting portion of the protective cover is filled with a sealing material. Preferably, the outer surface of the ultraviolet light-transmitting protective cover 40 is provided with a metal protective net.

In this embodiment, the ultraviolet light-transmitting protective cover 40 is connected to the connecting portion of the protective cover, and forms a light source housing cavity together with the lamp holder 10; the ultraviolet disinfection light source 30 is located in the light source housing The inside of the cavity is protected by the ultraviolet light-transmitting protective cover 40. The ultraviolet disinfection light source 30 is connected to the light source connection portion 202 of the PCB board 20; the PCB board 20 is connected to power through the power connection line 212, and supplies power to the ultraviolet disinfection light source 30, the ultraviolet disinfection light source 30 The ultraviolet light is irradiated, and the ultraviolet light is irradiated to the outside through the ultraviolet light transmitting protective cover 40. Since the material of the ultraviolet light transmitting protective cover 40 is quartz glass, the transmittance of the ultraviolet light is relatively high, which is The effect of bacteria disinfection is minimal. In addition, the PCB board 20 is fixed inside the lamp holder 10 by the sealant, which has higher water resistance and safety.

Example 2

The difference between the ultraviolet disinfection module of this embodiment 2 and the ultraviolet disinfection module of embodiment 1 mainly lies in:

2A and 2B, the PCB board 20 further includes a power supply module 204, a central processing unit 206, a light source driving module 208, and a light source state detection module 210; the power supply module 204 is connected to the power connection line 212, and the central The processor 206 and the light source driving module 208 are electrically connected to the power supply module 204 respectively. The light source driving module 208 is signally connected to the central processing unit 206, and the light source driving module 208 receives the signal sent by the central processing unit 206, and switches the switch state according to the signal. The light source driving module 208 is electrically connected to the ultraviolet disinfection light source 30 to provide working power for the ultraviolet disinfection light source 30. The light source status detection module 210 is signally connected to the central processing unit 206, and the light source status detection module 210 detects the working status of the ultraviolet disinfection light source 30, and sends a detection signal to the central processing unit 206.

In this embodiment, the user can also control the number of turn-on of the light source driving module 208 through the central processing unit 206, thereby determining the number of light emitted by the ultraviolet disinfection light source, which is suitable for more different scenarios and is convenient for the user to Sterilization effect and energy saving are adjusted upwards to enhance the user experience.

The light source state detection module 210 is a voltage detection module. The voltage detection module detects the operating voltage of the ultraviolet disinfection light source 30 and sends a voltage detection signal to the central processing unit 206. In one embodiment, the central processing unit 206 is provided with a voltage parameter range, and the central processing unit 206 compares the voltage detection signal with the voltage parameter range, and if the voltage detection signal is not in the voltage parameter range Inside, the central processing unit 206 sends out an abnormal signal.

In this embodiment, the ultraviolet disinfection module of the present invention further includes a cover 50. The back of the lamp holder 10 is provided with an opening; the cover 50 is buckled at the opening, the cover 50 and the lamp holder 10 together form a circuit containing cavity, and the PCB board 20 is located at the opening. The circuit accommodating cavity; the sealant is filled in the circuit accommodating cavity.

As shown in FIG. 3, in this embodiment, the number of the ultraviolet disinfection light source 30 and the light source connecting portion 202 are both three.

The PCB is also provided with a first cable connection seat 104, the side of the cover 50 away from the lamp holder 10 is provided with a second cable connection seat 502, and the power connection line 212 is a multi-core cable 2121; The first cable connection base 104 is respectively connected to the power supply module 204 and the central processing unit 206. The first cable connection base 104 receives the abnormal signal sent by the central processing unit 206; one end of the multi-core cable 2121 is connected to the The first cable connection base 104 is connected, the other end of the multi-core cable 2121 extends from the second cable connection base 502, and the abnormal signal is output through the multi-core cable 2121.

Preferably, in this embodiment, it further includes a UVC ultraviolet sensor module 60, the UVC ultraviolet sensor module 60 is disposed in the light source accommodating cavity, the UVC ultraviolet sensor module 60 and the PCB board 20 Is connected to the central processing unit 206, and the UVC ultraviolet sensor module 60 sends an ultraviolet light detection signal to the central processing unit 206. The UVC ultraviolet sensor module 60 can continuously or discontinuously detect the intensity of the ultraviolet light in the light source accommodating cavity through ultraviolet neutral glass. The role of the ultraviolet neutral glass is to attenuate light, because the UVC ultraviolet The sensor module 60 is close to the ultraviolet disinfection light source 30. The UVC ultraviolet sensor module 60 is easily affected and greatly reduces the service life. Therefore, the neutral glass is used to attenuate light, thereby improving the UVC ultraviolet sensor module 60 Service life.

Compared with the prior art, after the ultraviolet disinfection light source 30 of this embodiment is turned on, the voltage detection module detects the voltage of the ultraviolet disinfection light source 30 in the working state, the voltage detection module outputs a voltage detection signal, and the central processing unit The device 206 compares the voltage detection signal with the voltage parameter range, and if the voltage detection signal is not within the voltage parameter range, the central processing unit 206 sends an abnormal signal, for example, the ultraviolet disinfection light source 30 is ultraviolet A light mercury lamp or an ultraviolet light mercury lamp. If the ultraviolet light mercury lamp breaks, causing mercury leakage, the operating voltage of the ultraviolet light mercury lamp detected by the voltage detection module will change, so that the central processing unit 206 sends an abnormal signal according to the comparison result; or the ultraviolet disinfection light source 30 is an ultraviolet LED unit, which is damaged due to long-time work, and the working voltage of the ultraviolet LED unit detected by the voltage detection module will also change. Therefore, the central processing unit 206 sends out an abnormal signal according to the comparison result. The ultraviolet disinfection module of this embodiment can continuously or non-continuously detect the working state of the ultraviolet disinfection light source 30 to ensure its sterilization and disinfection effect and prevent accidents. Moreover, in this embodiment, the UVC ultraviolet sensor module 60 is set to detect the intensity of the ultraviolet light irradiated by the ultraviolet disinfection light source 30, so as to detect the working state of the ultraviolet disinfection light source 30 more comprehensively.

In other embodiments, those skilled in the art can change the number of the ultraviolet disinfection light source 30 and the light source connection portion 202 according to actual needs. For example, referring to FIGS. 4A-4C, the ultraviolet disinfection light source 30 and the light source connection portion The number of 202 are all 9 or all 10 or all 12. The shape of the PCB board can be round or square or any shape.

Example 3

The difference between the ultraviolet disinfection module of this embodiment 3 and the ultraviolet disinfection module of embodiment 2 mainly lies in:

The light source state detection module 210 is a current detection module, and the current detection module detects the working current of the ultraviolet disinfection light source 30 and sends a current detection signal to the central processing unit 206. The central processing unit 206 has a current parameter range. The central processing unit 206 compares the current detection signal with the current parameter range. If the current detection signal is not within the current parameter range, the central processing unit 206 The processor 206 issues an abnormal signal.

In other embodiments, those skilled in the art can simultaneously set a voltage detection module and a current detection module as the light source state detection module 210 according to the accuracy of the light source work detection, and correspondingly set the voltage and current detection modules on the central processing unit 206. The parameter range of the current.

Compared with the prior art, the ultraviolet disinfection module of this embodiment detects the current in the working state of the ultraviolet disinfection light source 30 by setting the current detection module, the current detection module outputs a current detection signal, and the central processing unit 206 The current detection signal is compared with the current parameter range, and if the current detection signal is not within the current parameter range, the central processing unit 206 sends an abnormal signal, for example, the ultraviolet disinfection light source 30 is an ultraviolet mercury lamp Or it includes an ultraviolet mercury lamp. If the ultraviolet mercury lamp breaks, causing mercury leakage, the working current of the ultraviolet mercury lamp detected by the current detection module will change, so that the central processing unit 206 compares As a result, an abnormal signal is issued; or the ultraviolet disinfection light source 30 is an ultraviolet LED unit, which is damaged due to long-term operation, the working current of the ultraviolet LED unit detected by the current detection module will also change, so that the The central processing unit 206 sends out an abnormal signal according to the comparison result. The ultraviolet disinfection module of this embodiment can continuously or non-continuously detect the working state of the ultraviolet disinfection light source 30 to ensure its sterilization and disinfection effect and prevent accidents.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. And variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

An ultraviolet disinfection module is characterized in that it comprises:

A lamp holder, the lamp holder is provided with a protective cover connecting part;

PCB board, the PCB board is arranged inside the lamp holder, one side of the PCB board is provided with a number of light source connection parts, the PCB board is connected with a power connection line, and the power connection line extends out of the lamp Outside the seat

A plurality of ultraviolet disinfection light sources, the ultraviolet disinfection light source is connected with the light source connection part of the PCB board;

Ultraviolet light transmitting protective cover, the ultraviolet light transmitting protective cover is connected with the connecting part of the protective cover, and forms a light source accommodating cavity together with the lamp holder, and the plurality of ultraviolet disinfection light sources are located in the light source accommodating cavity Inside.
The ultraviolet disinfection module according to claim 1, wherein the PCB board includes a power supply module, a central processing unit, a light source driving module, and a light source state detection module; the power supply module is connected to the power connection line, so The central processing unit and the light source drive module are respectively electrically connected to the power supply module, the light source drive module is signally connected to the central processing unit, the light source drive module is electrically connected to the ultraviolet disinfection light source, and the light source The state detection module is signally connected to the central processing unit, and the light source state detection module detects the working state of the ultraviolet disinfection light source, and sends a detection signal to the central processing unit.
The ultraviolet disinfection module according to claim 2, wherein the light source state detection module is a voltage detection module, the voltage detection module detects the operating voltage of the ultraviolet disinfection light source, and sends the voltage to the central processing unit Detection signal; or, the light source state detection module is a current detection module, the current detection module detects the working current of the ultraviolet disinfection light source, and sends a current detection signal to the central processing unit.
The ultraviolet disinfection module according to claim 1, wherein the ultraviolet disinfection light source is an ultraviolet mercury lamp and/or an ultraviolet LED unit.
The ultraviolet disinfection module according to claim 1, wherein the inside of the lamp holder is filled with sealant, and the PCB board is encapsulated in the inside of the lamp holder by the sealant.
The ultraviolet disinfection module according to claim 1, wherein the light source connection part protrudes outside the sealant.
The ultraviolet disinfection module according to claim 6, wherein the connection between the light source connection part and the ultraviolet disinfection light source is filled with a sealing material.
The disinfection module with a quartz protective shell according to claim 2, further comprising a UVC ultraviolet sensor module, the UVC ultraviolet sensor module is arranged in the light source accommodating cavity, the UVC ultraviolet transmission The sensing module is connected to the central processing unit of the PCB board, and the UVC ultraviolet sensing module sends an ultraviolet light detection signal to the central processing unit.
The ultraviolet disinfection module according to claim 2, further comprising a cover; the back of the lamp holder is provided with an opening; the cover is buckled at the opening, and the cover is connected to the The lamp holder forms a circuit accommodating cavity, the PCB board is located in the circuit accommodating cavity; the sealant is filled in the circuit accommodating cavity.
The ultraviolet disinfection module according to claim 9, wherein a first cable connection seat is provided on the PCB, a second cable connection seat is provided on the side of the cover away from the lamp holder, and the power supply The connecting line is a multi-core cable; the first cable connection base is connected to the power module and the central processing unit respectively; one end of the multi-core cable is connected to the first cable connection base, and the other of the multi-core cable One end extends from the second cable connection seat.