Multiband ultraviolet crosslinking instrument and control method thereof

Abstract

The invention relates to the technical field of ultraviolet crosslinking devices, and discloses a multiband ultraviolet crosslinking instrument which comprises a light source module which is composed of a plurality of UVA, UVB and UVC band LED lamp beads capable of being independently controlled and arranged to form an area light source; the sensor module comprises ultraviolet sensors corresponding to three wave bands of UVA, UVB and UVC respectively and is used for detecting the ultraviolet light intensity of each wave band in real time; the human-computer interface is used for receiving a feedback signal of the sensor module; the ultraviolet cross-linking instrument effectively solves the problems that an existing ultraviolet cross-linking instrument adopts a plurality of ultraviolet lamp tubes to irradiate experimental materials in a cavity, a power control mode is that the lamp tubes are detached and replaced with lamp tubes with different light source wavelengths to irradiate in different wave bands, the lamp tubes are not surface light sources, the lamp tubes can cause uneven irradiation in the cavity, and the irradiation efficiency is low. The ultraviolet light intensity received by each area on the surface of the sample is inconsistent, so that the problem of experimental errors caused by non-uniform illumination can be solved.

Description

Technical Field

[0001] This invention relates to the field of ultraviolet crosslinking device technology, and in particular to a multi-band ultraviolet crosslinker and its control method. Background Technology

[0002] An ultraviolet (UV) crosslinker, also known as a UV crosslinking device or UV crosslinking system, is an experimental instrument widely used in biology, molecular biology, and related fields. Its core function is to induce crosslinking reactions in specific molecules or structures within biological samples through UV light irradiation, thereby achieving the fixation and localization of these molecules.

[0003] In molecular biology, ultraviolet (UV) light is commonly used for photocrosslinking reactions, enabling crosslinking of neighboring molecules. UV light consists of electromagnetic waves with wavelengths between 10 nm and 400 nm. UV crosslinking primarily mediates the covalent bonding of proteins and RNA. Commonly used UV wavelengths include 254 nm (UVC band), 312 nm (UVB band), and 365 nm (UVA band). Under 254 nm UV irradiation, nucleotides in RNA and amino acids in proteins undergo photochemical reactions, transforming them into an active state and forming intermolecular covalent crosslinks. However, the efficiency of crosslinking mediated by 254 nm UV is relatively low (HIST-CLIP uses 254 nm UV for crosslinking). In contrast, 365 nm UV can mediate the efficient crosslinking of photosensitive molecules, such as 4SU, with proteins (PAR-CLIP uses 365 nm + 4SU for crosslinking).

[0004] Ultraviolet (UV) crosslinking instruments play a crucial role in experiments involving the crosslinking of RNA with proteins or other molecules. By using UV crosslinking instruments, researchers can simulate the interactions between RNA and proteins or other molecules, thereby gaining a deeper understanding of their functions and mechanisms of action within cells. This technology is of great significance for research in fields such as molecular biology, cell biology, and biochemistry.

[0005] Currently, existing UV crosslinking instruments all use several UV lamps to irradiate the experimental materials inside the cavity. The power is controlled by removing the lamps and replacing them with lamps of different wavelengths to irradiate different bands. However, the lamps are not surface light sources, which can cause uneven irradiation inside the cavity. This results in inconsistent UV light intensity received by different areas of the sample surface, leading to experimental errors due to uneven illumination. Summary of the Invention

[0006] The purpose of this invention is to solve the problem mentioned in the background art that existing ultraviolet crosslinking instruments all use several ultraviolet lamps to irradiate the experimental materials in the cavity. The power is controlled by removing the lamps and replacing them with lamps of different wavelengths to irradiate different bands. However, the lamps are not surface light sources, which will cause uneven irradiation in the cavity. This will result in inconsistent ultraviolet light intensity received by different areas of the sample surface, thus causing experimental errors due to uneven illumination.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A multi-band ultraviolet crosslinker includes: Light source module: It consists of several independently controllable UVA, UVB, and UVC band LED beads, which are arranged to form a surface light source; Sensor module: Contains ultraviolet sensors corresponding to the three bands of UVA, UVB and UVC respectively, used to detect the intensity of ultraviolet light in each band in real time; Human-machine interface: Used to receive feedback signals from sensor modules and adjust the output of light source modules according to preset light intensity settings to keep the light intensity of each band constant. It can also provide a user interface, support the selection of time mode or energy mode as working mode, and allow users to set the corresponding working time or energy threshold. The housing houses the light source module, sensor module, and human-machine interface. Inside the housing is a lamp panel, which includes a top plate and a lamp cover plate. The lamp cover plate contains a mounting plate, on which UVA, UVB, and UVC band LED beads are mounted. The LED beads and the mounting plate are quickly connected via mounting hardware. The mounting plate has a positioning groove, and the lamp cover plate has a positioning end corresponding to the positioning groove to ensure that the user does not place the mounting plate in the wrong direction when placing it inside the lamp cover plate. The mounting plate also has a snap-fit ​​groove to facilitate the user's removal of the mounting plate from the lamp cover plate.

[0008] Preferably, the mounting component includes a mounting block, which has symmetrically arranged sockets for inserting the pins of the LED beads. The mounting block also has two connectors for quickly clamping and connecting the pins of the LED beads, with each connector corresponding to one of the two sockets. The mounting block has positive and negative markings, which correspond to the two sockets, allowing the user to distinguish between positive and negative terminals when inserting the LED beads into the sockets.

[0009] Preferably, the connector includes a positioning plate, and two positioning plates are provided, which are symmetrically located on both sides of the insertion hole. The positioning plate is provided with a pressing plate, and the pressing plate is provided with a pressing groove for clamping and connecting the LED beads. By clamping the pins of the LED beads with the pressing plate, the LED beads can be stably installed on the mounting component.

[0010] Preferably, both positioning plates are provided with plug-in plates, and the two plug-in plates are provided with connecting plates II. The connecting plates II are provided with plug connectors. The positioning plates and plug-in plates are both provided on the mounting block. The top plate has multiple connecting slots corresponding to multiple mounting parts. A connecting plate I is provided in each connecting slot. The connecting plate I has two plug-in slots that connect to the plug connectors on the mounting parts. The plug-in plates, positioning plates, plug connectors, and connecting plates I are all made of materials with good conductivity. The top plate is provided with a driving circuit board. The driving circuit board is electrically connected to the connecting plate I. The plug connectors are inserted into the plug-in slots and can connect with the connecting plate I. Current is input through a pair of plug connectors on the connecting plate, which in turn inputs current to the LED beads, so that the driving circuit board can control the LED beads.

[0011] Preferably, the mounting block is provided with an elastic plate II, a pressing plate is provided above the elastic plate II, and two pressing blocks are provided below the pressing plate, each corresponding to one of the two connecting parts. When the pressing blocks are pressed down, they can push the extrusion plates on both sides to the sides, thereby increasing the distance between the two extrusion plates and making it easier for users to remove or install LED beads.

[0012] Preferably, the mounting block is symmetrically provided with an elastic plate, the elastic plate is provided with a fixed end, the mounting plate is provided with a plurality of mounting holes corresponding to a plurality of mounting parts, the mounting block is located in the mounting hole, and the mounting block can be snapped into the mounting hole by the elastic plate and the fixed end, and the mounting block can be removed, so that when the user replaces the LED lamp beads, the new LED lamp beads can be installed on the mounting parts.

[0013] Preferably, the top plate is symmetrically provided with mounting ends, and the mounting ends are provided with sliding grooves. The control component includes a pull rod, and the pull rod is symmetrically provided with a moving plate. The moving plate is provided with a sliding end, which is movable in the sliding groove. The moving plate is provided with a guide plate on the side near the top plate, and the guide plate is provided with a guide hole. The top plate is symmetrically provided with baffles, and the baffles are provided with limiting holes. After replacing the LED beads, the lamp cover is pushed inward. The baffle can block the stop, so that the guide plate can drive the guide block to move upward, so that the lamp cover and the top plate are closed.

[0014] Preferably, the lampshade plate is symmetrically provided with guide blocks and stop blocks. The guide blocks are located in guide holes, and the stop blocks are located in limiting holes. When the guide plate moves and drives the lampshade plate to move through the guide blocks, the stop blocks in the limiting holes can limit the lampshade plate and ensure that the lampshade plate can move up and down stably.

[0015] Preferably, the positioning component includes a mounting plate and a fixing plate. The mounting plate is provided with a threaded rod and a limiting rod. The fixing plate is rotatably provided with a rotating sleeve, which is sleeved on the threaded rod and threadedly connected to it. The fixing plate is provided with a through hole, and the limiting rod is located in the through hole. The fixing plate is provided with a connecting end, and the pull rod is provided with a positioning hole that mates with the connecting end. By inserting the connecting end into the positioning hole, the position of the pull rod can be fixed. The control component can push the lampshade plate and the top plate to form a stable connection.

[0016] This invention provides a method for controlling the light intensity of a multi-band ultraviolet crosslinker, comprising the following steps: S1. Users can set the light intensity settings for the three bands UVA, UVB, and UVC via the control panel. S2. The sensor module detects the intensity of ultraviolet light in each band in real time and feeds the detected values ​​back to the human-machine interface. S3. Based on the comparison between the feedback value and the set value, the human-machine interface automatically adjusts the light intensity of each band by adjusting the drive current or duty cycle of the light source module, so that the actual light intensity is consistent with the set value.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention sets up multiple LED beads in three bands (UVA, UVB, and UVC) and arranges them at equal intervals to form a surface light source, so that the intensity of ultraviolet light received by each area of ​​the sample surface is consistent, thus avoiding experimental errors caused by uneven illumination. Furthermore, the lamps with UVA, UVB, and UVC wavelengths enable the lamp panel to directly irradiate with ultraviolet light of three wavelengths. The light intensity of the three wavelengths of ultraviolet light is detected by the ultraviolet sensor. When the ultraviolet sensor detects that the light intensity of the corresponding wavelength is higher than the set value, the light intensity of the corresponding wavelength is reduced, and vice versa. This ensures that the light intensity of the three wavelengths is consistent with the set value and remains constant. The control components allow the lamp cover to be easily separated from the top plate. When an LED bead malfunctions and needs to be replaced, the user can quickly remove the lamp cover and connect the LED bead to the mounting components. These components enable the LED bead to be installed and removed more quickly and easily, facilitating the user's quick and convenient replacement of damaged LED beads and effectively reducing the difficulty of LED bead replacement. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a view showing the position of the lamp panel in this invention; Figure 3 This is a structural view of the lamp panel of the present invention; Figure 4 This is an exploded view of the lamp panel structure of the present invention; Figure 5 This is a separate view of the lampshade plate, mounting plate, and control components of the present invention; Figure 6 This is a structural view of the mounting component of the present invention; Figure 7 This is a cross-sectional view of the mounting block of the present invention; Figure 8 This is a structural view of the mounting block of the present invention; Figure 9 This is a structural view of the positioning plate of the present invention; Figure 10 This is a view showing the connection between the second elastic plate and the pressing plate of the present invention; Figure 11 This is a structural view of the mounting plate of the present invention; Figure 12 This is a structural view of the lampshade plate of the present invention. Figure 13 This is a structural view of the control component of the present invention; Figure 14 This is a structural view of the top plate of the present invention; Figure 15 For the present invention Figure 14 Enlarged view at point A in the middle; Figure 16 This is a structural view of the positioning component of the present invention; Figure 17 This is the control view of the present invention.

[0020] Drawing number explanation: 1. Housing; 2. Lamp panel; 21. Top plate; 211. Connecting groove; 212. Connecting plate one; 2121. Insertion groove; 213. Mounting end; 214. Sliding groove; 215. Baffle; 216. Limiting hole; 217. Control component; 2171. Pull rod; 21711. Positioning hole; 2172. Moving plate; 2173. Guide plate; 2174. Guide hole; 2175. Sliding end; 22. Lamp cover plate; 221. Guide block; 222. Baffle; 23. Mounting plate; 231. Mounting hole; 232. Positioning groove; 24. Mounting components; 241, Mounting block; 2411, Elastic plate one; 2412, Fixed end; 242, Insertion hole; 243, Positioning plate; 2431, Extrusion plate; 2432, Extrusion groove; 244, Insertion plate; 245, Connecting plate two; 246, Insertion connector; 247, Elastic plate two; 248, Pressing plate; 249, Pressing block; 25, LED bead; 3, Ultraviolet sensor; 4, Positioning component; 41, Mounting plate; 42, Fixed plate; 43, Connecting end; 44, Rotating sleeve; 45, Threaded rod; 46, Limiting rod; 5, Human-machine interface. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The following description is intended to disclose the invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0023] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing this invention and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this invention.

[0024] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number. Example

[0025] Please see Figures 1-17 A multi-band ultraviolet crosslinker includes: Light source module: It consists of several independently controllable UVA, UVB and UVC band LED beads 25, which are arranged to form a surface light source; Sensor module: Includes ultraviolet sensors 3 corresponding to the three bands of UVA, UVB and UVC respectively, used to detect the intensity of ultraviolet light in each band in real time; Human-Machine Interface 5: Used to receive feedback signals from the sensor module and adjust the output of the light source module according to the preset light intensity setting value to keep the light intensity of each band constant. It can also provide a user interface, support the selection of time mode or energy mode as working mode, and allow users to set the corresponding working time or energy threshold. The mode selection and working time or energy threshold setting can be performed through the human-machine interface. The housing 1 houses the light source module, sensor module, and human-machine interface 5. Inside the housing 1 is a lamp board 2, which includes a top plate 21 and a lamp cover plate 22. Inside the lamp cover plate 22 is a mounting plate 23. LED beads 25 of UVA, UVB, and UVC bands are mounted on the mounting plate 23. The LED beads 25 and the mounting plate 23 are quickly connected by a mounting piece 24. The mounting plate 23 has a positioning groove 232, and the lamp cover plate 22 has a positioning end corresponding to the positioning groove 232 to ensure that the user will not place the mounting plate 23 in the wrong direction when placing it inside the lamp cover plate 22. The mounting plate 23 also has a snap-fit ​​groove to facilitate the user to remove the mounting plate 23 from the lamp cover plate 22.

[0026] Mounting component 24 includes mounting block 241. Mounting block 241 is symmetrically provided with sockets 242 for inserting the pins of LED beads 25. Mounting block 241 is provided with two connectors for quick clamping and connecting the pins of LED beads 25. The two connectors correspond to the two sockets 242 respectively. Mounting block 241 is provided with positive and negative markings, which correspond to the two sockets 242 respectively, so that the user can distinguish the positive and negative terminals when inserting the pins of LED beads 25 into the sockets 242.

[0027] The connector includes a positioning plate 243. Two positioning plates 243 are provided, which are symmetrically located on both sides of the insertion hole 242. The positioning plate 243 is provided with a pressing plate 2431. The pressing plate 2431 is provided with a pressing groove 2432 for clamping and connecting the LED lamp bead 25. By clamping the pins of the LED lamp bead 25 with the pressing plate 2431, the LED lamp bead 25 can be stably installed on the mounting part 24.

[0028] Both positioning plates 243 are equipped with plug-in plates 244, and both plug-in plates 244 are equipped with connecting plates 245. Connecting plates 245 are equipped with plug-in connectors 246. Positioning plates 243 and plug-in plates 244 are both mounted on mounting blocks 241. The top plate 21 has multiple connecting grooves 211 corresponding to multiple mounting components 24. Connecting grooves 211 contain connecting plates 212. Connecting plates 212 have two plug-in grooves 2121 that connect to the plug-in connectors 246 on the mounting components 24. Plug-in plates 244... The positioning plate 243, the connector 246, and the connecting plate 212 are all made of materials with good conductivity. The top plate 21 is equipped with a drive circuit board, which is electrically connected to the connecting plate 212. The connector 246 is inserted into the connector slot 2121 and can be connected to the connecting plate 212. The connecting plate 212 inputs current to the connector 246, which in turn inputs current to the LED bead 25, so that the drive circuit board can control the LED bead 25.

[0029] The mounting block 241 is provided with an elastic plate 247, and a pressing plate 248 is provided above the elastic plate 247. Below the pressing plate 248, there are two pressing blocks 249 respectively corresponding to the positions of the two connecting parts. When the pressing blocks 249 are pressed down, they can push the extrusion plates 2431 on both sides to the sides, thereby increasing the distance between the two extrusion plates 2431, making it easier for users to remove or install the LED beads 25.

[0030] The mounting block 241 is symmetrically provided with an elastic plate 2411, and the elastic plate 2411 is provided with a fixed end 2412. The mounting plate 23 is provided with a plurality of mounting holes 231 corresponding to a plurality of mounting parts 24. The mounting block 241 is located in the mounting hole 231. The mounting block 241 can be snapped into the mounting hole 231 by the elastic plate 2411 and the fixed end 2412. The mounting block 241 can be removed, so that when the user replaces the LED lamp bead 25, the new LED lamp bead 25 can be installed on the mounting part 24.

[0031] The top plate 21 is symmetrically provided with mounting ends 213, and the mounting ends 213 are provided with sliding grooves 214. The control component 217 includes a pull rod 2171, and a moving plate 2172 is symmetrically provided on the pull rod 2171. The moving plate 2172 is provided with a sliding end 2175, which is movable in the sliding groove 214. The moving plate 2172 is provided with a guide plate 2173 on the side near the top plate 21, and the guide plate 2173 is provided with a guide hole 2174. The top plate 21 is symmetrically provided with baffles 215, and the baffles 215 are provided with limiting holes 216. After replacing the LED beads 25, the lamp cover plate 22 is pushed inward. The baffles 215 can block the stop block 222, so that the guide plate 2173 can drive the guide block 221 to move upward, so that the lamp cover plate 22 and the top plate 21 are closed.

[0032] The lampshade plate 22 is symmetrically provided with guide block 221 and stop block 222. The guide block 221 is located in the guide hole 2174, and the stop block 222 is located in the limiting hole 216. When the guide plate 2173 moves and drives the lampshade plate 22 to move through the guide block 221, the stop block 222 in the limiting hole 216 can limit the lampshade plate 22, ensuring that the lampshade plate 22 can move up and down stably.

[0033] The positioning component 4 includes a mounting plate 41 and a fixing plate 42. The mounting plate 41 is provided with a threaded rod 45 and a limiting rod 46. The fixing plate 42 is rotatably provided with a rotating sleeve 44, which is sleeved on the threaded rod 45 and threadedly connected to it. The fixing plate 42 is provided with a through hole, and the limiting rod 46 is located in the through hole. The fixing plate 42 is provided with a connecting end 43. The pull rod 2171 is provided with a positioning hole 21711 that mates with the connecting end 43. By inserting the connecting end 43 into the positioning hole 21711, the position of the pull rod 2171 can be fixed. The control component 217 can push the lamp cover plate 22 and the top plate 21 to form a stable connection.

[0034] A method for controlling the light intensity of a multi-band ultraviolet crosslinker includes the following steps: S1. Users set the light intensity settings for the three bands UVA, UVB, and UVC through the human-machine interface. S2. The sensor module detects the intensity of ultraviolet light in each band in real time and feeds the detected value back to the human-machine interface 5. S3 and HMI5 automatically adjust the light intensity of each band by adjusting the driving current or duty cycle of the light source module, based on the comparison between the feedback value and the set value, so that the actual light intensity is consistent with the set value.

[0035] The ultraviolet sensor 3 detects the light intensity of the three bands UVA, UVB and UVC, and transmits the detected values ​​to the control circuit on the human-machine interface 5. The control circuit controls the LED beads 25 of the three bands UVA, UVB and UVC. The human-machine interface 5 can control the intensity of each band of the lamp board 2 individually. The LED beads 25 in the lamp panel 2 are arranged in three bands: UVA, UVB and UVC, so that the lamp panel 2 can be irradiated in three bands: 254nm (UVC band), 312nm (UVB band) and 365nm (UVA band). The LED beads 25 in the three bands constitute a line light source, and several line light sources are arranged to form a surface light source. The human-machine interface has 5 parts, which can be set to the light intensity of three bands: UVA, UVB, and UVC. When the ultraviolet sensor 3 detects that the light intensity of the corresponding band is higher than the set value, the light intensity of the corresponding band is reduced, and vice versa, so that the light intensity of the three bands is consistent with the set value and remains constant.

[0036] The human-machine interface (HMI) allows selection of two operating modes: time mode or energy mode. In time mode, the operating time can be set. After the instrument starts, the ultraviolet light source operates according to the set value; the instrument will automatically stop ultraviolet irradiation when the set time is reached. In energy mode, the ultraviolet energy for each wavelength can be set. After the instrument starts, the instrument will automatically stop ultraviolet irradiation when the energy reaches the set value. The method for calibrating the ultraviolet sensor 3 is as follows: With the LED beads 25 inside the lamp board 2 at maximum output, the light intensity reading of the ultraviolet sensor 3 under the maximum output of the lamp board 2 is read using the human-machine interface 5 and recorded as X. At the same time, the light intensity at the same location was measured using a standard ultraviolet light intensity meter to ensure that the measurement conditions (such as distance, angle, etc.) were the same as those when the ultraviolet sensor 3 was measured, and the measured value was recorded as Y; Based on the values ​​of Y and X, the calibration coefficient Z is calculated, i.e., Z = Y / X. This coefficient reflects the proportional relationship between the output of the ultraviolet sensor 3 and the actual light intensity. In practical operation, when the ultraviolet sensor 3 obtains a light intensity value of X, it multiplies it by the calibration coefficient Z to obtain the calibrated light intensity Y, i.e., Y = Z × X. This calibration method can ensure that the ultraviolet sensor 3 can accurately measure ultraviolet light intensity in practical applications.

[0037] When an LED bead 25 malfunctions, rotating the rotating sleeve 44 causes it to move downwards. This movement causes the fixing plate 42 to move downwards, which in turn moves the connecting end 43 downwards, dislodging it from the positioning hole 21711 of the pull rod 2171. The user then pulls the pull rod 2171 outwards, causing it to move the guide block 221 outwards via the moving plate 2172. The guide block 221 then moves downwards via the guide hole 2174, subsequently causing the lampshade plate 22 to move downwards. After the lampshade plate 22 moves away from the top plate 21 and is removed from the top plate 21, the guide plate 2173 pulls the lampshade plate 22 outward via the guide block 221, allowing the lampshade plate 22 to be removed from the housing 1. The mounting plate 23 inside the lampshade plate 22 is exposed. The user can remove the mounting plate 23 from the lampshade plate 22 through the clip, and remove the mounting part 24 corresponding to the damaged LED bead 25. The symmetrical elastic plate 2411 on the mounting block 241 is pressed inward, and the elastic plate 2411 deforms inward and drives the fixed... The fixed end 2412 moves inward, reaching the position of the mounting hole 231. This allows the mounting block 241 to be pressed downward, causing the fixed end 2412 to pass through the mounting hole 231, thus allowing the mounting block 241 to be removed from the mounting hole. Then, the user presses the pressing plate 248 towards the elastic plate 247. The pressing plate 248 and the elastic plate 247 are squeezed together, causing the elastic plate 247 to deform. The pressing plate 248 drives the pressing block 249 to move, and the pressing block 249 presses against the pressing plates 24 on both sides of the LED bead 25 pins. 31 deforms and moves to both sides, so that the pressing plate 2431 moves away from the pins on the LED bead 25. Then, the user can pull the LED bead 25 outward to remove the pins from the socket 242, and then remove the damaged LED bead 25. The pins on the new LED bead 25 are inserted between the pressing plates 2431 through the socket 242. After releasing the pressing plate 2431, the pressing plate 2431 springs back and clamps the pins on the LED bead 25, which makes it easy for the user to replace the new LED bead 25.

[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A multi-band ultraviolet crosslinking instrument, characterized in that, It includes: Light source module: It consists of several independently controllable UVA, UVB and UVC band LED beads (25) and arranged to form a surface light source; Sensor module: contains ultraviolet sensors (3) corresponding to the three bands of UVA, UVB and UVC respectively, for real-time detection of ultraviolet light intensity in each band; Human-machine interface (5): Used to receive feedback signals from sensor modules and adjust the output of light source modules according to preset light intensity settings, so that the light intensity of each band remains constant. It can also provide a user interface, support the selection of time mode or energy mode as working mode, and allow users to set the corresponding working time or energy threshold. The housing (1) is equipped with the light source module, sensor module and human-machine interface (5). The housing (1) is equipped with a lamp plate (2). The lamp plate (2) includes a top plate (21) and a lamp cover plate (22). The lamp cover plate (22) is equipped with a mounting plate (23). LED beads (25) of UVA, UVB and UVC bands are mounted on the mounting plate (23). The LED beads (25) and the mounting plate (23) are quickly connected by a mounting component (24).

2. The multi-band ultraviolet crosslinker according to claim 1, characterized in that, The mounting component (24) includes a mounting block (241), on which symmetrical sockets (242) for inserting the pins of the LED beads (25) are provided. The mounting block (241) is provided with two connectors for quickly clamping and connecting the pins of the LED beads (25), and the two connectors correspond to the two sockets (242) respectively.

3. The multi-band ultraviolet crosslinker according to claim 2, characterized in that, The connector includes a positioning plate (243), and there are two positioning plates (243). The two positioning plates (243) are symmetrically located on both sides of the insertion hole (242). The positioning plate (243) is provided with a pressing plate (2431), and the pressing plate (2431) is provided with a pressing groove (2432) for clamping and connecting the LED beads (25).

4. A multi-band ultraviolet crosslinking instrument according to claim 3, characterized in that, Both positioning plates (243) are provided with plug-in plates (244), and both plug-in plates (244) are provided with connecting plates (245). The connecting plates (245) are provided with plug connectors (246). The positioning plates (243) and plug-in plates (244) are both provided on the mounting block (241). The top plate (21) has multiple connecting grooves (211) corresponding to multiple mounting parts (24). The connecting grooves (211) are provided with connecting plates (212). The connecting plates (212) are provided with two plug-in grooves (2121) that connect to the plug connectors (246) on the mounting parts (24).

5. A multi-band ultraviolet crosslinking instrument according to claim 4, characterized in that, The mounting block (241) is provided with an elastic plate two (247), and a pressing plate (248) is provided above the elastic plate two (247). Below the pressing plate (248) are two pressing blocks (249) respectively corresponding to the positions of the two connecting parts.

6. A multi-band ultraviolet crosslinker according to claim 5, characterized in that, The mounting block (241) is symmetrically provided with an elastic plate (2411), the elastic plate (2411) is provided with a fixed end (2412), the placement plate (23) is provided with a plurality of placement holes (231) corresponding to a plurality of mounting parts (24), and the mounting block (241) is located in the placement hole (231).

7. A multi-band ultraviolet crosslinking instrument according to claim 6, characterized in that, The top plate (21) is symmetrically provided with mounting ends (213), and the mounting ends (213) are provided with sliding grooves (214). The control component (217) includes a pull rod (2171), and the pull rod (2171) is symmetrically provided with a moving plate (2172). The moving plate (2172) is provided with a sliding end (2175), and the sliding end (2175) is movable in the sliding groove (214). The moving plate (2172) is provided with a guide plate (2173) on the side near the top plate (21), and the guide plate (2173) is provided with a guide hole (2174). The top plate (21) is symmetrically provided with baffles (215), and the baffles (215) are provided with limiting holes (216).

8. A multi-band ultraviolet crosslinker according to claim 7, characterized in that, The lampshade plate (22) is symmetrically provided with a guide block (221) and a stop block (222). The guide block (221) is located in the guide hole (2174), and the stop block (222) is located in the limiting hole (216).

9. A multi-band ultraviolet crosslinker according to claim 8, characterized in that, The positioning component (4) includes a mounting plate (41) and a fixing plate (42). The mounting plate (41) is provided with a threaded rod (45) and a limiting rod (46). The fixing plate (42) is rotatably provided with a rotating sleeve (44). The rotating sleeve (44) is sleeved on the threaded rod (45) and is threadedly connected to it. The fixing plate (42) is provided with a through hole. The limiting rod (46) is located in the through hole. The fixing plate (42) is provided with a connecting end (43). The pull rod (2171) is provided with a positioning hole (21711) that mates with the connecting end (43).

10. The light intensity control method for a multi-band ultraviolet crosslinker according to claim 1, characterized in that... Includes the following steps: S1. Users can set the light intensity settings for the three bands UVA, UVB, and UVC via the control panel. S2. The sensor module detects the intensity of ultraviolet light in each band in real time and feeds the detected value back to the human-machine interface (5). S3, Human-Machine Interface (5) Based on the comparison results between the feedback value and the set value, the light intensity of each band is automatically adjusted by adjusting the driving current or duty cycle of the light source module, so that the actual light intensity is consistent with the set value.

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