UVLED light source heat dissipation structure

Abstract

The utility model relates to the technical field of UVLED light sources, and discloses a UVLED light source heat dissipation structure which comprises a light source frame, an inner cavity of the light source frame is fixedly connected with a limiting inner frame, a light source installation cavity is formed in one side of the limiting inner frame, and a light source mechanism is arranged in the light source installation cavity. Through cooperation of the light source frame, the heat exchange box, the heat exchange paste, the circulating refrigeration mechanism and the air cooling mechanism, cooling water is recycled through the circulating refrigeration mechanism, so that the cooling water is discharged from the water outlet cavity after passing through the heat dissipation cavity in the water inlet cavity in the heat exchange box; the contact area with the light source mechanism is increased through the heat exchange cavity and the heat exchange paste, so that the heat dissipation effect on the light source mechanism is improved, heat dissipation can be evenly conducted on the light source mechanism, the service life of the light source mechanism is prolonged, the overall production cost is reduced, and the heat dissipation practicability of the UVLED light source is improved.

Description

Technical Field

[0001] This utility model relates to the field of UVLED light source technology, specifically a heat dissipation structure for a UVLED light source. Background Technology

[0002] In high-power LED chips, the photoelectric conversion efficiency of UVLEDs is high, with approximately 60% or more of the electrical energy being converted into heat. This requires end-users to take good care of heat dissipation when using high-power UVLED curing products to ensure that the high-power UVLED chips can work normally.

[0003] In the prior art, Chinese Utility Model Application No. CN202021107844.3 discloses a water-cooled UVLED surface light source, including a light source frame, a UVLED surface light source mechanism installed inside the light source frame, and a heat dissipation mechanism installed on one side of the light source frame. The key features are: the UVLED surface light source mechanism is embedded in the front surface of the light source frame; the heat dissipation mechanism adopts a water-cooled structure and is fixedly installed on the rear surface of the light source frame; the heat dissipation mechanism is hollow inside and has an inlet and an outlet formed on it, symmetrically arranged vertically; a water pump is connected to the inlet, and a cooler is connected to the other end of the water pump; the outlet leads to the other end of the cooler; the UVLED surface light source mechanism includes a UVLED copper-based circuit board and UVLED LED beads arranged in front of the UVLED copper-based circuit board, with multiple UVLED beads connected in series; the UVLED copper-based circuit board powers the UVLED beads; the heat dissipation mechanism has two or more equidistant and spaced elements; water cooling increases the heat dissipation effect and improves the service life of the UVLED surface light source mechanism;

[0004] Although the above technical solution uses water cooling to dissipate heat from the light source mechanism, the cooling water stays on the light source mechanism for a short time. This results in the heat dissipation efficiency of the area of ​​the light source mechanism in contact with the cooling water being greater than that of the area not in contact with the cooling water. Consequently, the heat dissipation of the light source mechanism is uneven, and the use of more heat dissipation mechanisms increases production costs. Therefore, we need to propose a heat dissipation structure for UVLED light sources. Utility Model Content

[0005] The purpose of this invention is to provide a heat dissipation structure for a UVLED light source, which improves the heat dissipation efficiency of the light source mechanism, increases the contact area between the coolant and the light source structure, improves the uniformity of heat dissipation of the light source mechanism, thereby increasing the service life of the light source mechanism and reducing the overall production cost, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a UVLED light source heat dissipation structure, including a light source frame, a limiting inner frame fixedly connected to the inner cavity of the light source frame, a light source mounting cavity provided on one side of the limiting inner frame, a light source mechanism provided in the light source mounting cavity, a heat exchange cavity provided on the other side of the limiting inner frame, a detachable heat exchange box provided in the heat exchange cavity, and a circulating cooling mechanism, an air cooling mechanism, and heat dissipation fins provided on one side of the heat exchange box;

[0007] The heat exchange box is fixedly connected to a first isolation plate, a second isolation plate, and multiple flow dividers. Multiple flow dividers are fixedly connected between the first isolation plate and the second isolation plate. A heat dissipation cavity is provided between two adjacent flow dividers. A water outlet cavity is provided between the first isolation plate and the heat exchange box. A water inlet cavity is provided between the second isolation plate and the heat exchange box. A water inlet hole communicating with the heat dissipation cavity is opened on one side of the second isolation plate. A water outlet hole communicating with the heat dissipation cavity is opened on one side of the first isolation plate.

[0008] The inner cavity of the limiting inner frame is provided with heat exchange paste, which is disposed between the light source mechanism and the heat exchange box.

[0009] Preferably, the multiple sets of the diversion plates are arranged at equal intervals, and mounting angle plates are fixedly connected to both ends of one side of the heat exchange box, with positioning bolts inserted into one side of each of the two sets of mounting angle plates.

[0010] Preferably, the circulating refrigeration mechanism includes a support plate fixedly connected to the lower end of one side of the heat exchange box, a circulating pump is provided on the support plate, an inlet pipe and a return pipe connected to the inlet chamber and the outlet chamber of the circulating pump, and a cooler is provided on the return pipe.

[0011] Preferably, the air-cooling mechanism includes a mounting frame and multiple sets of cooling fans disposed within the mounting frame, and the mounting frame is provided with multiple sets of connecting bolts.

[0012] Preferably, the mounting bracket is arranged perpendicularly to the multiple sets of heat dissipation fins, and the multiple sets of heat dissipation fins are arranged at equal intervals.

[0013] Preferably, positioning frames are fixedly connected to both sides of the light source frame, the positioning frames are arranged in an inverted shape, and the light source frame is arranged in a rectangular shape.

[0014] Preferably, the axis of the water inlet and the axis of the water outlet are both located on the same axis, the multiple sets of the diversion plates are all heat-conducting plates, and the first isolation plate and the second isolation plate are both heat-insulating plates.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention primarily utilizes the coordination between the light source frame, heat exchange box, heat exchange paste, circulating cooling mechanism, and air-cooling mechanism. The circulating cooling mechanism recycles the cooling water, allowing it to pass through the heat dissipation chamber and then out through the outlet chamber within the heat exchange box. The cooling water flows within the heat dissipation chamber, and the heat exchange chamber and heat exchange paste increase the contact area with the light source mechanism, thereby improving the heat dissipation effect and ensuring uniform heat dissipation. This extends the lifespan of the light source mechanism, reduces overall production costs, and enhances the practicality of heat dissipation for UV LED light sources. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the light source frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the circulating refrigeration mechanism of this utility model;

[0021] Figure 5 This is a schematic cross-sectional view of the heat exchange box structure of this utility model.

[0022] In the diagram: 1. Light source frame; 2. Light source mounting cavity; 3. Light source mechanism; 4. Heat exchange box; 41. Mounting angle plate; 42. Positioning bolt; 43. First isolation plate; 44. Second isolation plate; 45. Diverter plate; 46. Water outlet; 47. Water inlet; 5. Circulating cooling mechanism; 51. Support plate; 52. Circulating pump; 53. Return water pipe; 54. Water inlet pipe; 55. Cooler; 6. Air cooling mechanism; 61. Mounting bracket; 62. Cooling fan; 63. Connecting bolt; 7. Heat dissipation fins; 8. Limiting inner frame; 9. Heat exchange paste; 10. Heat exchange cavity; 11. Positioning frame. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5This utility model provides a technical solution: a UVLED light source heat dissipation structure, including a light source frame 1, a limiting inner frame 8 fixedly connected to the inner cavity of the light source frame 1, a light source mounting cavity 2 is provided on one side of the limiting inner frame 8, a light source mechanism 3 is provided in the light source mounting cavity 2, a heat exchange cavity 10 is provided on the other side of the limiting inner frame 8, a detachable heat exchange box 4 is provided in the heat exchange cavity 10, and a circulating cooling mechanism 5, an air cooling mechanism 6 and heat dissipation fins 7 are provided on one side of the heat exchange box 4;

[0025] The heat exchange box 4 has a first isolation plate 43, a second isolation plate 44 and a multi-component flow plate 45 fixedly connected inside. The multi-component flow plate 45 is fixedly connected between the first isolation plate 43 and the second isolation plate 44. A heat dissipation cavity is provided between two adjacent flow plates 45. A water outlet cavity is provided between the first isolation plate 43 and the heat exchange box 4. A water inlet cavity is provided between the second isolation plate 44 and the heat exchange box 4. A water inlet hole 47 communicating with the heat dissipation cavity is opened on one side of the second isolation plate 44. A water outlet hole 46 communicating with the heat dissipation cavity is opened on one side of the first isolation plate 43.

[0026] The inner cavity of the limiting inner frame 8 is provided with heat exchange paste 9, which is located between the light source mechanism 3 and the heat exchange box 4.

[0027] The light source mechanism 3 includes a UVLED copper-based circuit board and UVLED beads arranged in front of the UVLED copper-based circuit board. Multiple UVLED beads are connected in series, and the UVLED copper-based circuit board powers the UVLED beads. This allows each UVLED bead to maintain the same operating frequency, thereby increasing the lifespan of the UVLED beads and effectively preventing the duration of UV curing operations from being affected by the failure of a single UVLED bead, thus ensuring the effectiveness of UV curing.

[0028] The multi-component flow plates 45 are arranged at equal intervals. Both ends of one side of the heat exchange box 4 are fixedly connected to the mounting angle plates 41. Positioning bolts 42 are inserted into one side of each of the two sets of mounting angle plates 41. The mounting angle plates 41 and positioning bolts 42 facilitate the disassembly and assembly of the heat exchange box 4, improve the overall disassembly and assembly efficiency, and facilitate maintenance.

[0029] The circulating cooling mechanism 5 includes a support plate 51 fixedly connected to the lower end of one side of the heat exchange box 4. A circulating pump 52 is installed on the support plate 51. The circulating pump 52 is equipped with an inlet pipe 54 and a return pipe 53 that are connected to the inlet and outlet water chambers. A cooler 55 is installed on the return pipe 53. The cooler 55 facilitates the cooling of the water after heat exchange, so that the cooling water can be recycled and improved to enhance the cooling effect on the light source mechanism 3.

[0030] The air-cooling mechanism 6 includes a mounting frame 61 and multiple sets of cooling fans 62 installed in the mounting frame 61. Multiple sets of connecting bolts 63 are provided on the mounting frame 61, which can be used to fix the mounting frame 61 to the heat exchange box 4, thereby facilitating the heat dissipation of the heat dissipation fins 7.

[0031] The mounting bracket 61 is vertically arranged with multiple sets of heat dissipation fins 7, which are arranged at equal intervals. The air-cooling mechanism 6 blows air onto the heat dissipation fins 7, thereby accelerating the cooling efficiency of the fins, improving the heat dissipation efficiency of the heat exchange box 4, and improving the heat dissipation effect on the light source mechanism 3.

[0032] Positioning frames 11 are fixedly connected to both sides of the light source frame 1. The positioning frames 11 are arranged in a U-shape, and the light source frame 1 is arranged in a rectangular shape. The positioning frames 11 facilitate the installation and disassembly of the light source frame 1.

[0033] The axis of the water inlet 47 and the axis of the water outlet 46 are both set on the same axis. The multi-component flow dividers 45 are all heat-conducting plates. The first isolation plate 43 and the second isolation plate 44 are both heat-insulating plates. The water inlet 47 and the water outlet 46 facilitate the entry and exit of cooling water into the heat dissipation cavity between the flow dividers 45, thereby facilitating the circulation of cooling water.

[0034] In use, the light source frame 1 is installed via the positioning frame 11. The circulating cooling mechanism 5 drives the cooling water through the cooler 55 and into the water inlet chamber of the heat exchange box 4. The cooling water is then distributed to multiple heat dissipation chambers through the water inlet hole 47, thereby exchanging the heat absorbed by the heat exchange paste 9. The heat exchange range is wide and the heat exchange is uniform, transferring the heat to the cooling water. The heated cooling water flows from the water outlet hole 46 into the return water pipe 53, and then passes through the cooler 55 again via the circulating pump 52, realizing the recycling of the cooled water after cooling. The heat exchange paste 9 increases the contact area with the light source mechanism 3, and the cooling water flowing in the heat exchange box 4 can evenly dissipate heat from the heat exchange paste 9, thereby improving the uniformity of heat dissipation from the light source mechanism 3 and increasing the service life of the light source components.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a UV LED light source, comprising a light source frame (1), characterized in that: The inner cavity of the light source frame (1) is fixedly connected to the limiting inner frame (8). A light source mounting cavity (2) is provided on one side of the limiting inner frame (8). A light source mechanism (3) is provided in the light source mounting cavity (2). A heat exchange cavity (10) is provided on the other side of the limiting inner frame (8). A detachable heat exchange box (4) is provided in the heat exchange cavity (10). A circulating cooling mechanism (5), an air cooling mechanism (6), and heat dissipation fins (7) are provided on one side of the heat exchange box (4). The heat exchange box (4) is fixedly connected to a first isolation plate (43), a second isolation plate (44) and a multi-group flow plate (45). The multi-group flow plate (45) is fixedly connected between the first isolation plate (43) and the second isolation plate (44). A heat dissipation cavity is provided between two adjacent groups of flow plates (45). A water outlet cavity is provided between the first isolation plate (43) and the heat exchange box (4). A water inlet cavity is provided between the second isolation plate (44) and the heat exchange box (4). A water inlet hole (47) communicating with the heat dissipation cavity is opened on one side of the second isolation plate (44). A water outlet hole (46) communicating with the heat dissipation cavity is opened on one side of the first isolation plate (43). The inner cavity of the limiting inner frame (8) is provided with heat exchange paste (9), which is located between the light source mechanism (3) and the heat exchange box (4).

2. The heat dissipation structure for a UV LED light source according to claim 1, characterized in that: Multiple sets of the diversion plates (45) are arranged at equal intervals. Both ends of one side of the heat exchange box (4) are fixedly connected to mounting angle plates (41), and positioning bolts (42) are inserted into one side of both sets of mounting angle plates (41).

3. The UV LED light source heat dissipation structure according to claim 2, characterized in that: The circulating refrigeration mechanism (5) includes a support plate (51) fixedly connected to the lower end of one side of the heat exchange box (4). A circulating pump (52) is provided on the support plate (51). An inlet pipe (54) and a return pipe (53) connected to the inlet chamber and the outlet chamber are provided on the circulating pump (52). A cooler (55) is provided on the return pipe (53).

4. The heat dissipation structure for a UV LED light source according to claim 3, characterized in that: The air-cooling mechanism (6) includes a mounting frame (61) and multiple sets of cooling fans (62) arranged in the mounting frame (61). Multiple sets of connecting bolts (63) are provided on the mounting frame (61).

5. The heat dissipation structure for a UV LED light source according to claim 4, characterized in that: The mounting bracket (61) is perpendicular to the multiple sets of heat dissipation fins (7), and the multiple sets of heat dissipation fins (7) are arranged at equal intervals.

6. The heat dissipation structure for a UV LED light source according to claim 1, characterized in that: Both sides of the light source frame (1) are fixedly connected to positioning frames (11), the positioning frames (11) are arranged in a U-shape, and the light source frame (1) is arranged in a rectangular shape.

7. The heat dissipation structure for a UV LED light source according to claim 1, characterized in that: The axis of the water inlet (47) and the axis of the water outlet (46) are both set on the same axis. The multiple sets of the diversion plates (45) are all heat-conducting plates. The first isolation plate (43) and the second isolation plate (44) are both heat-insulating plates.

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