Laser disinfection machine capable of automatically detecting laser offset

Abstract

The invention relates to a laser disinfection machine capable of automatically detecting laser offset, which is characterized in that laser emitted by a laser irradiates a first reflection mechanism and is continuously reflected between the first reflection mechanism and a second reflection mechanism to form a laser disinfection light curtain, and fluid enters a disinfection cavity from an inlet; light deviation detection devices are arranged on the two sides of the first reflection mechanism and the two sides of the second reflection mechanism correspondingly, the laser and the light deviation detection devices are in communication connection with an electric control module, the light deviation detection devices transmit detected light deviation signals to the electric control module, and the electric control module is in communication connection with the first reflection mechanism and the second reflection mechanism. The electric control module sends out a reminding signal or controls the laser to stop working when receiving the light deviation signal, the effectiveness of laser transmission can be improved, when the laser transmission deviates from a normal track, the signal is fed back to a user in time, the reliability of fluid disinfection is guaranteed, the laser is controlled to stop working in time, and resources are effectively saved.

Description

Technical Field

[0001] This invention relates to the field of laser sterilization machines, and more specifically, to a laser sterilization machine with automatic laser offset detection. Background Technology

[0002] Air safety has attracted widespread attention in recent years. The presence of viruses, bacteria and other microorganisms in the air poses safety hazards to people's lives. For example, harmful substances that are transmitted through the air, such as the novel coronavirus, influenza virus and pneumonia virus, are the cause of people's concerns. Especially in enclosed and relatively crowded places, such as offices, government service halls and hospitals, the necessity of ensuring air safety is even more urgent.

[0003] Based on traditional ultraviolet disinfection machines and mercury lamp disinfection machines, ultraviolet laser air disinfection technology has developed rapidly as a new type of disinfection technology due to its higher sterilization efficiency and stronger sterilization ability. Ultraviolet laser disinfection machines mainly use lasers to emit ultraviolet lasers, and then the ultraviolet laser beams are reflected back and forth between mirrors multiple times to form a laser beam net. When air passes through the laser beam net, pathogenic microorganisms such as viruses and bacteria in the air are killed.

[0004] The drawback of existing technology is that there is no monitoring mechanism during the multiple reflections of the laser beam. When the laser beam deviates from the reflection area of ​​the reflector, it cannot be detected in time, causing the sterilizer to run idle, wasting energy and reducing the reliability of air sterilization. Summary of the Invention

[0005] Based on this, and to address the aforementioned problems, the present invention provides a laser disinfection machine with automatic laser deviation detection. When the laser deviates from the reflection area, it can be detected in time and an alert can be issued, ensuring the reliability of fluid disinfection.

[0006] To achieve the above objectives, the present invention provides a laser sterilization machine with automatic laser offset detection, comprising a sterilization chamber, an inlet, and an outlet. A laser is disposed on the sterilization chamber, and a first reflection mechanism and a second reflection mechanism are disposed opposite to each other within the sterilization chamber. The laser emitted by the laser irradiates the first reflection mechanism and continuously reflects between the first and second reflection mechanisms to form a laser sterilization light curtain. Fluid enters the sterilization chamber from the inlet, is sterilized under the irradiation of the laser sterilization light curtain, and then flows out from the outlet. A light offset detection device is disposed on both sides of the first and second reflection mechanisms. The laser and the light offset detection device are communicatively connected to an electronic control module. The light offset detection device transmits the detected light offset signal to the electronic control module. When the electronic control module receives the light offset signal, it issues a reminder signal or controls the laser to stop working.

[0007] In one embodiment, the light offset detection device is a power detection sensor, and the detected light offset signal is a power signal.

[0008] In one embodiment, the disinfection chamber is enclosed by a first fixed plate, a second fixed plate, and a third fixed plate and a fourth fixed plate arranged opposite to each other. The laser is connected to the outside of the second fixed plate, and the laser emitted by the laser shines on the first reflection mechanism through a laser entrance hole provided on the second fixed plate. The electronic control module is connected to the outside of the third fixed plate.

[0009] In one embodiment, the first reflection mechanism is located at the center of the first fixed plate, and the light offset detection devices are located on both sides of the first reflection mechanism. Each side of the light offset device is also provided with heat dissipation fins on its outer side. The second reflection mechanism is located at the center of the second fixed plate, and the light offset detection devices are located on both sides of the second reflection mechanism. Each side of the light offset device is also provided with heat dissipation fins on its outer side.

[0010] In one embodiment, the third fixed plate has a third light reflection mechanism at its center, and two sets of light offset detection devices are arranged on both sides of the third reflection mechanism. Each set of light offset devices is also provided with heat dissipation fins on its outer side. The fourth fixed plate has a fourth light reflection mechanism at its center, and two sets of light offset detection devices are arranged on both sides of the fourth reflection mechanism. Each set of light offset devices is also provided with heat dissipation fins on its outer side.

[0011] In one embodiment, the first reflection mechanism, the second reflection mechanism, the third light reflection mechanism, and the fourth light reflection mechanism are reflective mirrors coated with aluminum oxide.

[0012] In one embodiment, the first fixing plate, the second fixing plate, the third fixing plate, and the fourth fixing plate are all made of heat-dissipating aluminum profiles.

[0013] In one embodiment, the heat dissipation fins are integrated with the first fixing plate, the second fixing plate, the third fixing plate, or the fourth fixing plate, and are all made of heat dissipation aluminum profiles.

[0014] In one embodiment, the fluid is air or water.

[0015] In one embodiment, the end of the second fixed plate is also provided with a mirror mount with an adjustable pitch angle. A laser reflector is provided in the mirror mount. The laser emitted by the laser first shines on the laser reflector and then shines into the disinfection cavity through the laser entrance hole after being reflected by the laser reflector. The mirror mount is used to adjust the incident angle of the laser incident into the disinfection cavity.

[0016] Beneficial effects:

[0017] This invention discloses a laser sterilization machine with automatic laser offset detection. The laser emitted by the laser is continuously reflected between a first reflection mechanism and a second reflection mechanism to form a sterilization light curtain composed of multiple laser beams. Fluids such as air or water are sterilized by irradiation through the sterilization light curtain. The laser sterilization machine of this invention is also equipped with a light offset detection device. When the light offset detection device detects the power signal of the laser beam, it transmits the light offset signal to the electronic control module. When the electronic control module receives the light offset signal, it immediately issues a reminder signal or controls the laser to stop working, ensuring the reliability of fluid sterilization, controlling the laser to stop working in a timely manner, avoiding ineffective operation of the laser, and effectively saving resources. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a laser disinfection machine with automatic laser offset detection according to the present invention. Detailed Implementation

[0019] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0024] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0025] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1As shown, this embodiment provides a laser sterilization machine with automatic laser offset detection, including a sterilization chamber 10, an inlet 20, and an outlet. The inlet 20 and outlet are arranged opposite to each other. A laser 30 is disposed on the sterilization chamber 10. A first reflection mechanism 101 and a second reflection mechanism (not shown in the figure) are arranged opposite to each other in the sterilization chamber 10. The laser 301 emitted by the laser 30 irradiates the first reflection mechanism 101 and is continuously reflected between the first reflection mechanism 101 and the second reflection mechanism to form a laser sterilization light curtain 102. Fluid enters the sterilization chamber 10 from the inlet 20, is sterilized under the irradiation of the laser sterilization light curtain 102, and then flows out from the outlet. Viruses, bacteria, and other harmful substances present in fluids such as air or water are rapidly killed under laser irradiation, making the fluid flowing out of the outlet safe and clean. The laser 301 emitted by the laser 30 is an ultraviolet laser, which has a better effect on eliminating viruses, bacteria, and other harmful substances. Light offset detection devices 103 are provided on both sides of the first reflection mechanism 101 and the second reflection mechanism. The laser 30 and the light offset detection device 103 are communicatively connected to the electronic control module 104. The light offset detection device 103 transmits the detected light offset signal to the electronic control module 104. When the electronic control module 104 receives the light offset signal, it issues a reminder signal or controls the laser 30 to stop working. The disinfection light curtain 102 is formed by the laser 301 continuously reflecting between the first reflection mechanism 101 and the second reflection mechanism to form a laser beam network. Under normal circumstances, the laser beam network continuously reflects at the center line position of the first reflection mechanism 101 and the second reflection mechanism. If the laser deviates from the center line, it will eventually exceed the reflectible area of ​​the first reflection mechanism and the second reflection mechanism, resulting in the inability to form a dense and effective laser disinfection light curtain 102. After the light offset detection device 103 provided in this embodiment detects the power signal of the laser beam, it indicates that the laser beam has deviated from the normal transmission path and transmits the light offset signal to the electronic control module 104. When the electronic control module 104 receives the light offset signal, it issues a reminder signal, which includes sound signals, light signals, etc. When the electronic control module 104 receives the light offset signal, it can also control the laser 30 to stop working. By setting the light offset detection device 103 to monitor the effectiveness of laser transmission, when the laser transmission deviates from the normal trajectory, a feedback signal is promptly sent to the user to ensure the reliability of fluid disinfection and control the laser 30 to stop working in time, effectively saving resources.

[0027] In one embodiment, the light offset detection device 103 is a power detection sensor, and the detected light offset signal is a power signal.

[0028] In one embodiment, the disinfection chamber 10 is formed by a first fixing plate 105, a second fixing plate 106, and a third fixing plate 107 and a fourth fixing plate 108 arranged opposite to each other. The laser 30 is connected to the outside of the second fixing plate 106, and a protective shell is provided on the outside of the laser 30. The laser emitted by the laser 30 irradiates the first reflection mechanism 101 through the laser entrance hole 109 provided on the second fixing plate 106. The electronic control module 104 is connected to the outside of the third fixing plate 107, and a protective shell is provided on the outside of the electronic control module. The laser disinfection machine with automatic laser offset detection provided in this embodiment has a compact structure, which makes it small in size and easy to install. It can be integrated into various disinfection devices as a separate disinfection module.

[0029] In one embodiment, the first reflecting mechanism 101 is located at the center of the first fixed plate 105, and the light offset detection device 103 is located on both sides of the first reflecting mechanism 101. The light offset detection device is arranged along the elongated edge of the first reflecting mechanism, and a heat dissipation fin 110 is also provided on the outer side of each light offset device 103. The second reflecting mechanism is located at the center of the second fixed plate 106, and the light offset detection device 103 is located on both sides of the second reflecting mechanism. The light offset detection device is arranged along the elongated edge of the second reflecting mechanism, and a heat dissipation fin 110 is also provided on the outer side of each light offset device. The light reflecting mechanism, light offset detection device, and heat dissipation fins of the laser sterilization machine with automatic laser offset detection provided in this embodiment are reasonably arranged, ensuring a compact structure while ensuring heat dissipation effect and normal operation of each component. At the same time, the first reflecting mechanism and the second reflecting mechanism are located in the middle of the heat dissipation fins to prevent the laser beam from escaping to the outside of the sterilization cavity 10 and causing unnecessary damage.

[0030] In one embodiment, a third light reflection mechanism is provided at the center of the third fixing plate 107, and two sets of light offset detection devices 103 are provided on both sides of the third reflection mechanism. The light offset detection devices are arranged along the elongated edge of the third reflection mechanism, and heat dissipation fins 110 are also provided on the outer side of each set of light offset devices. A fourth light reflection mechanism is provided at the center of the fourth fixing plate 108, and two sets of light offset detection devices are provided on both sides of the fourth reflection mechanism. The light offset detection devices are arranged along the elongated edge of the fourth reflection mechanism, and heat dissipation fins 110 are also provided on the outer side of each set of light offset devices.

[0031] In one embodiment, the first, second, third, and fourth light reflection mechanisms are alumina-coated reflective mirrors. This forms a high-energy laser beam and a secondary high-energy reflective surface composed of multiple light spots, ensuring a laser disinfection light curtain with no blind spots. Compared to conventional glass lens assembly processes that are complex, require multiple machined parts for assembly and fixation, have limited dimensions, and are expensive, the alumina-coated reflective mirrors provided in this embodiment can be processed to any size, easily adapting to various dimensions.

[0032] In one embodiment, the first fixing plate 105, the second fixing plate 106, the third fixing plate 107 and the fourth fixing plate 108 are all made of heat-dissipating aluminum profiles, which have good heat dissipation effect.

[0033] In one embodiment, the heat dissipation fins 110 are integrated with the first fixing plate 105, the second fixing plate 106, the third fixing plate 107 or the fourth fixing plate 108, and are all made of heat dissipation aluminum profiles to ensure heat dissipation effect.

[0034] In one embodiment, the fluid is air or water.

[0035] In one embodiment, the end of the second fixed plate 106 is also provided with a mirror base 111 with adjustable pitch angle. A laser reflector is provided in the mirror base 111. The laser emitted by the laser 30 first irradiates the laser reflector and, after being reflected by the laser reflector, irradiates the disinfection cavity through the laser entrance hole. The mirror base 111 is used to adjust the incident angle of the laser incident on the disinfection cavity, thereby forming a dense laser disinfection light curtain in the disinfection cavity. The laser disinfection machine with automatic laser offset detection provided in this embodiment integrates the laser 30, mirror base 111, first to fourth reflection mechanisms, electronic control module 104, light offset detection device 103, heat dissipation fins 110, etc. on the first to fourth fixed plates. It has a compact and simple structure, high adaptability, and is suitable for a variety of disinfection scenarios. It can be applied to building air disinfection, office, hospital, home air disinfection and other places, with a wide range of applications.

[0036] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A laser sterilization machine with automatic laser offset detection, characterized in that: The device includes a disinfection chamber, an inlet, and an outlet. A laser is installed on the disinfection chamber, which contains a first reflecting mechanism and a second reflecting mechanism arranged opposite to each other. The laser emitted by the laser shines on the first reflecting mechanism and continuously reflects between the first and second reflecting mechanisms to form a laser disinfection light curtain. Fluid enters the disinfection chamber from the inlet, is disinfected under the irradiation of the laser disinfection light curtain, and then flows out from the outlet. Light offset detection devices are installed on both sides of the first and second reflecting mechanisms. The laser and the light offset detection devices are communicatively connected to an electronic control module. The light offset detection devices transmit the detected light offset signal to the electronic control module. When the electronic control module receives the light offset signal, it issues a warning signal or controls the laser to stop working.

2. The laser disinfection machine with automatic laser offset detection according to claim 1, characterized in that: The optical offset detection device is a power detection sensor, and the detected optical offset signal is a power signal.

3. The laser disinfection machine with automatic laser offset detection according to claim 1, characterized in that: The disinfection chamber is enclosed by a first fixed plate, a second fixed plate, a third fixed plate, and a fourth fixed plate arranged opposite to each other. The laser is connected to the outside of the second fixed plate, and the laser emitted by the laser shines on the first reflection mechanism through a laser entrance hole provided on the second fixed plate. The electronic control module is connected to the outside of the third fixed plate.

4. A laser disinfection machine with automatic laser offset detection according to claim 3, characterized in that: The first reflection mechanism is located at the center of the first fixed plate, and the light offset detection device is located on both sides of the first reflection mechanism. Each side of the light offset device is also provided with heat dissipation fins on its outer side. The second reflection mechanism is located at the center of the second fixed plate, and the light offset detection device is located on both sides of the second reflection mechanism. Each side of the light offset device is also provided with heat dissipation fins on its outer side.

5. A laser disinfection machine with automatic laser offset detection according to claim 1, characterized in that: The third fixed plate has a third light reflection mechanism at its center, and two sets of light offset detection devices are arranged on both sides of the third reflection mechanism. Each set of light offset devices is also provided with heat dissipation fins on its outer side. The fourth fixed plate has a fourth light reflection mechanism at its center, and two sets of light offset detection devices are arranged on both sides of the fourth reflection mechanism. Each set of light offset devices is also provided with heat dissipation fins on its outer side.

6. A laser disinfection machine with automatic laser offset detection according to any one of claims 1-5, characterized in that: The first reflection mechanism, the second reflection mechanism, the third light reflection mechanism, and the fourth light reflection mechanism are reflective mirrors with an aluminum oxide coating.

7. A laser disinfection machine with automatic laser offset detection according to claim 3, characterized in that: The first fixing plate, the second fixing plate, the third fixing plate and the fourth fixing plate are all made of heat-dissipating aluminum profiles.

8. A laser disinfection machine with automatic laser offset detection according to claim 4 or 5, characterized in that: The heat dissipation fins are integrated with the first fixing plate, the second fixing plate, the third fixing plate, or the fourth fixing plate, and are all made of heat dissipation aluminum profiles.

9. A laser disinfection machine with automatic laser offset detection according to claim 1, characterized in that: The fluid is air or water.

10. A laser disinfection machine with automatic laser offset detection according to claim 3, characterized in that: The end of the second fixed plate is also provided with a mirror mount with an adjustable pitch angle. A laser reflector is provided in the mirror mount. The laser emitted by the laser first shines on the laser reflector and then shines into the disinfection cavity through the laser entrance hole after being reflected by the laser reflector. The mirror mount is used to adjust the incident angle of the laser incident into the disinfection cavity.

Images