A light source module for UV curing

Abstract

The utility model relates to optical system and exposure machine technical field discloses a light source module for UV solidification, including metal base printed circuit board, the top fixed connection of metal base printed circuit board has a plurality of lamp pearl, the top fixed connection of metal base printed circuit board has dynamic light spot adjusting mechanism, the bottom fixed connection of metal base printed circuit board has heat abstractor, dynamic light spot adjusting mechanism includes fixed plate, the bottom fixed connection of fixed plate in the top of metal base printed circuit board, the top fixed connection of fixed plate has a plurality of first convex lens, the top fixed connection of fixed plate has fixed frame, in the utility model, through electric diaphragm, micro cylinder and lens displacement subassembly realize light spot size, shape flexible adjustment, need not to change accessory, the heat conduction plate, the heat spreading plate and the fan subassembly constitute high -efficient heat dissipation, keep mould group steady temperature operation, prolong life and promote solidification efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of optical systems and exposure machines, and in particular to a light source module for UV curing. Background Technology

[0002] A light source module is an assembly that integrates a light source, optical components, driving circuits, and heat dissipation structures. It can stably provide specific light effects, achieve efficient light output and application adaptation. UV curing requires ultraviolet light of specific wavelength and stable intensity to excite the photoinitiator reaction. By integrating UV light source, optical components, driving and heat dissipation structures, the light source module can accurately control light and ensure stable light output.

[0003] In the prior art, some light source module driving circuits power UV light sources to emit ultraviolet light of a specific wavelength. Optical elements focus and control the direction of ultraviolet light to ensure uniform light intensity. The heat dissipation structure maintains the stable operation of the light source. Finally, ultraviolet light irradiates UV materials, exciting the photoinitiator reaction and achieving rapid curing of the materials.

[0004] In the existing technology, some light source modules used for UV curing require frequent replacement of optical accessories and are cumbersome to adjust the light spot. In addition, the light spot shape is uniform and the size adjustment is limited, making it difficult to adapt to the needs of different curing scenarios. This results in a narrow range of applications and low operating efficiency. Therefore, a light source module for UV curing is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a light source module for UV curing, aiming to improve the problem of cumbersome spot adjustment in some existing light source modules for UV curing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a light source module for UV curing, comprising a metal-based printed circuit board, wherein multiple LED beads are fixedly connected to the top of the metal-based printed circuit board, a dynamic spot adjustment mechanism is fixedly connected to the top of the metal-based printed circuit board, and a heat dissipation mechanism is fixedly connected to the bottom of the metal-based printed circuit board.

[0007] The dynamic spot adjustment mechanism includes a fixed plate, the bottom of which is fixedly connected to the top of the metal-based printed circuit board, a plurality of first convex lenses are fixedly connected to the top of the fixed plate, a fixed frame is fixedly connected to the top of the fixed plate, a plurality of variable spot components are fixedly connected to the inner side of the fixed frame, and a lens displacement component is fixedly connected to the top of the fixed frame.

[0008] As a further description of the above technical solution: the variable spot component includes a rectangular support frame, the outside of which is fixedly connected to the bottom of the inner side of the fixed frame, and an electric aperture is fixedly connected to the inner side of the rectangular support frame. The top of the electric aperture is located at the top of the first convex lens.

[0009] As a further description of the above technical solution: two miniature cylinders are fixedly connected to the top of the electric aperture, and a rectangular baffle is fixedly connected to the driving end of the two miniature cylinders. The outer side of the rectangular baffle is slidably connected to the inner side of the rectangular support frame.

[0010] As a further description of the above technical solution: the lens displacement assembly includes a rectangular connecting frame, the bottom of the rectangular connecting frame is fixedly connected to the top of the fixed frame, a mounting plate is slidably connected to the outside of the rectangular connecting frame, and a plurality of second convex lenses are fixedly connected to the top of the mounting plate.

[0011] As a further description of the above technical solution: four electric push rods are fixedly connected to the top of the fixed frame, the drive end of the electric push rods is fixedly connected to the bottom of the mounting plate, and the four electric push rods are arranged outside the rectangular connecting frame.

[0012] As a further description of the above technical solution: the heat dissipation mechanism includes a heat-conducting plate, the top of which is fixedly connected to the bottom of the metal-based printed circuit board, a heat dissipation component is fixedly connected to the bottom of the heat-conducting plate, and a fan component is fixedly connected to the bottom of the heat dissipation component.

[0013] As a further description of the above technical solution: the heat dissipation component includes multiple heat spreaders, the tops of the multiple heat spreaders are fixedly connected to the bottom of the heat conduction plate, and the bottoms of the multiple heat spreaders are fixedly connected to a mounting frame.

[0014] As a further description of the above technical solution: the fan assembly includes a buffer frame, the top of the buffer frame is fixedly connected to the bottom of the mounting frame, the bottom of the buffer frame is fixedly connected to a mounting bracket, and a fan is provided on the inner side of the mounting bracket.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the size of the basic light spot can be controlled by an electric aperture, and the rectangular baffle driven by a micro cylinder can quickly switch between circular and rectangular light spots without the need to replace accessories. The lens displacement component changes the size of the light spot by adjusting the spacing of the convex lenses, adapting to various curing scenarios and improving the ease of operation and applicability.

[0017] 2. In this utility model, heat dissipation is efficient and stable. The heat-conducting plate conducts heat, and the heat-spreading plate diffuses heat evenly. Combined with the fan assembly for air cooling, it can quickly remove the heat generated by the LED beads during operation, ensuring that the module operates at a stable temperature, extending its service life, while ensuring stable UV curing efficiency and improving curing quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a light source module for UV curing proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the rectangular connecting frame for a UV curing light source module proposed in this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0021] Figure 4 This is a schematic diagram of the structure of a heat-conducting plate for a UV curing light source module proposed in this utility model.

[0022] Legend:

[0023] 1. Metal-based printed circuit board; 2. LED beads;

[0024] 3. Dynamic beam adjustment mechanism; 31. Fixing plate; 32. First convex lens; 33. Fixing frame;

[0025] 34. Variable beam assembly; 341. Rectangular support frame; 342. Electric aperture; 343. Miniature cylinder; 344. Rectangular baffle;

[0026] 35. Lens displacement assembly; 351. Rectangular connecting frame; 352. Mounting plate; 353. Electric actuator; 354. Second convex lens;

[0027] 4. Heat dissipation mechanism; 41. Heat conduction plate;

[0028] 42. Heat dissipation assembly; 421. Heat spreader; 422. Mounting frame;

[0029] 43. Fan assembly; 431. Buffer frame; 432. Mounting bracket; 433. Fan. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] A light source module for UV curing, as shown in the reference. Figures 1 to 3 The system includes a metal-based printed circuit board 1 with good thermal and electrical conductivity. Multiple LED beads 2 are fixedly connected to the top of the metal-based printed circuit board 1, which can emit ultraviolet rays of a specific wavelength. A dynamic spot adjustment mechanism 3 is fixedly connected to the top of the metal-based printed circuit board 1 to adjust the ultraviolet spot parameters. A heat dissipation mechanism 4 is fixedly connected to the bottom of the metal-based printed circuit board 1 to quickly dissipate the heat generated during operation. The dynamic spot adjustment mechanism 3 includes a fixing plate 31, which plays a supporting and fixing role. The bottom of the fixing plate 31 is fixedly connected to the top of the metal-based printed circuit board 1 to achieve stable installation. Multiple first convex lenses 32 are fixedly connected to the top of the fixing plate 31 to initially focus the ultraviolet rays. A fixing frame 33 is fixedly connected to the top of the fixing plate 31 to provide support for the internal components. Multiple variable spot components 34 are fixedly connected to the inner side of the fixing frame 33 to change the shape and size of the spot. A lens displacement component 35 is fixedly connected to the top of the fixing frame 33 to adjust the lens position to change the spot size.

[0032] Specifically, after the metal-based printed circuit board 1 is powered on, the top LED bead 2 emits ultraviolet light of a specific wavelength, which is transmitted upward to the first convex lens 32 on the top of the fixed plate 31 for initial focusing. The focused ultraviolet light enters the variable spot assembly 34 inside the fixed frame 33. The electric aperture 342 inside the rectangular support frame 341 adjusts the light aperture by opening and closing the blades. At the same time, the top micro cylinder 343 extends and retracts, driving the rectangular baffle 344 to slide up and down inside the frame, blocking or allowing some light to switch the spot shape. The adjusted ultraviolet light continues to reach the lens displacement assembly 35. The four electric push rods 353 on the top of the fixed frame 33 extend and retract synchronously, pushing the mounting plate 352 to slide up and down along the rectangular connecting frame 351, changing the distance between the second convex lens 354 and the first convex lens 32 on the top of the mounting plate 352, further adjusting the spot size. The coordinated movement of each structure realizes the dynamic adjustment of the spot parameters to adapt to different curing requirements.

[0033] The variable spot assembly 34 includes a rectangular support frame 341, which has a rectangular frame structure. The outer side of the rectangular support frame 341 is fixedly connected to the inner bottom of the fixed frame 33 for stable fixation. An electric aperture 342 is fixedly connected to the inner side of the rectangular support frame 341, which can change the light aperture by adjusting the opening and closing of the blades. The top of the electric aperture 342 is located on the top of the first convex lens 32 to receive the converged ultraviolet rays. Two miniature cylinders 343 are fixedly connected to the top of the electric aperture 342 to provide linear driving force. A rectangular baffle 344 is fixedly connected to the driving end of the two miniature cylinders 343 to block part of the ultraviolet rays to change the shape of the spot. The outer side of the rectangular baffle 344 is slidably connected to the inner side of the rectangular support frame 341 and can slide along the frame. The frame slides up and down. The lens displacement assembly 35 includes a rectangular connecting frame 351, which has a rectangular frame structure. The bottom of the rectangular connecting frame 351 is fixedly connected to the top of the fixed frame 33 to achieve connection and fixation. The outer side of the rectangular connecting frame 351 is slidably connected to a mounting plate 352, which can move up and down along the frame. The top of the mounting plate 352 is fixedly connected to multiple second convex lenses 354, which can further converge or disperse ultraviolet rays. The top of the fixed frame 33 is fixedly connected to four electric push rods 353, which can provide stable driving force. The driving end of the electric push rod 353 is fixedly connected to the bottom of the mounting plate 352, which drives the mounting plate 352 to move up and down. The four electric push rods 353 are arranged symmetrically on the outside of the rectangular connecting frame 351.

[0034] Specifically, a rectangular support frame 341 is fixed to the bottom inner side of a fixed frame 33. An electric aperture 342 on its inner side receives ultraviolet rays converged by a first convex lens 32. The aperture is adjusted by opening and closing the blades. Two miniature cylinders 343 on the top of the electric aperture 342 extend and retract, driving a rectangular baffle 344 to slide up and down along the inner side of the rectangular support frame 341, blocking part of the ultraviolet rays and changing the shape of the light spot. A rectangular connecting frame 351 is fixed to the top of the fixed frame 33. The mounting plate 352 on its outer side is driven by four symmetrically distributed electric push rods 353 on the top of the fixed frame 33, moving up and down along the rectangular connecting frame 351. The mounting plate 352 drives the second convex lens 354 on the top to move synchronously. By changing the distance with the first convex lens 32, the ultraviolet rays are further converged or diffused, achieving fine adjustment of the light spot size.

[0035] Reference Figure 1 and Figure 4The heat dissipation mechanism 4 includes a heat-conducting plate 41 made of a high thermal conductivity material. The top of the heat-conducting plate 41 is fixedly connected to the bottom of the metal-based printed circuit board 1 to quickly conduct heat. The bottom of the heat-conducting plate 41 is fixedly connected to a heat dissipation component 42 to expand the heat dissipation area. The bottom of the heat dissipation component 42 is fixedly connected to a fan component 43 to accelerate airflow and enhance heat dissipation. The heat dissipation component 42 includes multiple heat-spreading plates 421 with internal microstructures to uniformly conduct heat. The tops of the multiple heat-spreading plates 421 are fixedly connected to the bottom of the heat-conducting plate 41 to receive the conducted heat. The bottoms of the multiple heat-spreading plates 421 are fixedly connected to a mounting frame 422 for fixing and supporting. The fan component 43 includes a buffer frame 431 with internal shock-absorbing structure to reduce vibration. The top of the buffer frame 431 is fixedly connected to the bottom of the mounting frame 422 for connection and fixation. The bottom of the buffer frame 431 is fixedly connected to a mounting bracket 432 for mounting a fan 433. The fan 433 is provided on the inner side of the mounting bracket 432 to generate airflow to accelerate heat dissipation during operation.

[0036] Specifically, the heat generated by the metal-based printed circuit board 1 during operation is first transferred to the heat-conducting plate 41 fixed at its bottom. The heat-conducting plate 41, made of a highly thermally conductive material, quickly conducts the heat to the heat dissipation assembly 42 at the bottom. In the heat dissipation assembly 42, the tops of multiple heat spreaders 421 receive the heat conducted by the heat-conducting plate 41. Through the internal microstructure, the heat is evenly diffused throughout the assembly and then transferred to the mounting frame 422 fixed at the bottom. The mounting frame 422 also serves to fix the heat spreaders 421. The buffer frame 431 fixed at the bottom of the mounting frame 422 transfers the heat to the mounting bracket 432 at its bottom. When the heat dissipation is activated, the fan 433 inside the mounting bracket 432 starts to rotate, generating directional airflow. The airflow passes through the buffer frame 431 and the mounting frame 422, quickly carrying away the heat diffused by the heat spreaders 421. Throughout the process, the various structures work closely together to achieve efficient heat dissipation and prevent the module from being damaged due to high temperature.

[0037] The implementation principle of this application embodiment is as follows: The metal-based printed circuit board 1 provides power to multiple LED beads 2 fixed on its top. After being powered on, the LED beads 2 emit ultraviolet light required for UV curing. The ultraviolet light initially travels upward to provide a basic light source for UV curing. In the dynamic spot adjustment mechanism 3 fixed on the top of the metal-based printed circuit board 1, the first convex lens 32 on the top of the fixing plate 31 first focuses the ultraviolet light emitted by the LED beads 2. When the variable spot component 34 inside the fixing frame 33 is working, the electric aperture 342 inside the rectangular support frame 341 can adjust the ultraviolet light aperture and control the size of the basic spot. At the same time, the two micro cylinders 343 on the top of the electric aperture 342 drive the rectangular baffle 344 to slide inside the rectangular support frame 341. Cylinder 343 drives rectangular baffle 344 to rise, blocking the edge area of ​​the circular light spot and converting it into a rectangular light spot with a preset aspect ratio. When the curing area is circular, micro cylinder 343 drives rectangular baffle 344 to fall, and electric aperture 342 maintains a circular light transmission state, realizing rapid switching of light spot shape without the need to replace optical accessories. In the lens displacement assembly 35 at the top of the fixed frame 33, four electric push rods 353 drive mounting plate 352 to slide outside the rectangular connecting frame 351, causing multiple second convex lenses 354 at the top of mounting plate 352 to move up and down. By changing the relative distance between the second convex lens 354 and the first convex lens 32, the focusing degree of ultraviolet light and the final light spot size are adjusted to adapt to the light spot requirements of different UV curing scenarios.

[0038] In the heat dissipation mechanism 4 fixed at the bottom of the metal-based printed circuit board 1, the heat conduction plate 41 first conducts the heat generated by the LED bead 2 when it is working to the heat dissipation component 42 at its bottom. The multiple heat spreaders 421 of the heat dissipation component 42 evenly diffuse the heat conducted by the heat conduction plate 41 to the mounting frame 422. When the fan component 43 at the bottom of the mounting frame 422 is working, the fan 433 inside the mounting bracket 432 starts and generates airflow. The airflow is used to cool the mounting frame 422 and the heat spreader 421 through the buffer frame 431, quickly removing the heat and maintaining the LED bead 2 and the entire module at a stable temperature, ensuring UV curing efficiency and module lifespan.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A light source module for UV curing, comprising a metal-based printed circuit board (1), characterized in that: The top of the metal-based printed circuit board (1) is fixedly connected with multiple LED beads (2), the top of the metal-based printed circuit board (1) is fixedly connected with a dynamic light spot adjustment mechanism (3), and the bottom of the metal-based printed circuit board (1) is fixedly connected with a heat dissipation mechanism (4). The dynamic spot adjustment mechanism (3) includes a fixed plate (31), the bottom of which is fixedly connected to the top of the metal-based printed circuit board (1), a plurality of first convex lenses (32) are fixedly connected to the top of the fixed plate (31), a fixed frame (33) is fixedly connected to the top of the fixed plate (31), a plurality of variable spot components (34) are fixedly connected to the inner side of the fixed frame (33), and a lens displacement component (35) is fixedly connected to the top of the fixed frame (33).

2. A light source module for UV curing according to claim 1, characterized in that: The variable spot assembly (34) includes a rectangular support frame (341), the outside of which is fixedly connected to the bottom of the inner side of the fixed frame (33), and an electric aperture (342) is fixedly connected to the inner side of the rectangular support frame (341). The top of the electric aperture (342) is located on the top of the first convex lens (32).

3. A light source module for UV curing according to claim 2, characterized in that: Two miniature cylinders (343) are fixedly connected to the top of the electric aperture (342). A rectangular baffle (344) is fixedly connected to the driving end of the two miniature cylinders (343). The outer side of the rectangular baffle (344) is slidably connected to the inner side of the rectangular support frame (341).

4. A light source module for UV curing according to claim 3, characterized in that: The lens displacement assembly (35) includes a rectangular connecting frame (351), the bottom of which is fixedly connected to the top of the fixed frame (33), and a mounting plate (352) is slidably connected to the outside of the rectangular connecting frame (351). A plurality of second convex lenses (354) are fixedly connected to the top of the mounting plate (352).

5. A light source module for UV curing according to claim 4, characterized in that: Four electric push rods (353) are fixedly connected to the top of the fixed frame (33). The driving end of the electric push rods (353) is fixedly connected to the bottom of the mounting plate (352). The four electric push rods (353) are arranged outside the rectangular connecting frame (351).

6. A light source module for UV curing according to claim 1, characterized in that: The heat dissipation mechanism (4) includes a heat-conducting plate (41), the top of which is fixedly connected to the bottom of the metal-based printed circuit board (1), and a heat dissipation component (42) is fixedly connected to the bottom of the heat-conducting plate (41), and a fan component (43) is fixedly connected to the bottom of the heat dissipation component (42).

7. A light source module for UV curing according to claim 6, characterized in that: The heat dissipation assembly (42) includes multiple heat spreaders (421), the tops of the multiple heat spreaders (421) are fixedly connected to the bottom of the heat conduction plate (41), and the bottoms of the multiple heat spreaders (421) are fixedly connected to a mounting frame (422).

8. A light source module for UV curing according to claim 7, characterized in that: The fan assembly (43) includes a buffer frame (431), the top of which is fixedly connected to the bottom of the mounting frame (422), and the bottom of which is fixedly connected to a mounting bracket (432). A fan (433) is provided on the inner side of the mounting bracket (432).

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