Ultraviolet curing apparatus and ultraviolet light source heat dissipation structure

Abstract

The utility model relates to a kind of ultraviolet curing equipment and ultraviolet light source heat dissipation structure, when using, corresponding extraction fan is provided at the installation shell air outlet, to form negative pressure or low pressure area, cold air enters from the installation shell air inlet of installation shell side, since shutter air inlet and installation shell air inlet are directly opposite, therefore main stream airflow passes through shutter air inlet and enters the hollow through hole of shutter, uniformly contacts the inner wall of hollow through hole of shutter, realizes the efficient cooling of the inner wall four around shutter, and is discharged from shutter air outlet after shutter;Substream airflow enters the inner cavity upper portion of mercury lamp installation shell through the gap between shutter and mercury lamp installation shell, and is discharged after the upper surface of shutter is cooled, by installation shell air outlet. Therefore, mercury lamp installation shell and shutter can be effectively and efficiently cooled, effectively prolong service life and improve curing uniformity.

Description

Technical Field

[0001] This utility model relates to the field of ultraviolet curing technology, and in particular to an ultraviolet curing device and an ultraviolet light source heat dissipation structure. Background Technology

[0002] Ultraviolet (UV) curing equipment uses UV (ultraviolet) lamps to emit ultraviolet light, initiating the polymerization reaction of photosensitive materials and thus curing them. Photosensitive materials typically contain prepolymers, reactive diluents, photoinitiators, and pigments. When these materials are exposed to medium-to-short-wave UV radiation, the photoinitiator in the liquid material absorbs the energy of UV photons, is excited to an excited state, and becomes a free radical or cation. This energy is then transferred to the prepolymer and reactive diluent, causing them to polymerize into a solid coating. However, UV light sources generate a large amount of heat during electro-optical conversion, and high temperatures reduce UV radiation efficiency. Therefore, UV lamps are equipped with air-cooled heat dissipation structures.

[0003] Traditional UV curing equipment's heat dissipation structure only addresses the heat dissipation of the mercury lamp, neglecting the heat dissipation of the mercury lamp mounting housing, shutter, and other structures. This results in the entire structure being under high temperatures for extended periods, shortening its lifespan and increasing the failure rate. Uneven heat dissipation can also cause spectral shifts, reducing the effective UV radiation ratio and affecting curing uniformity. Utility Model Content

[0004] Therefore, it is necessary to provide an ultraviolet curing device and an ultraviolet light source heat dissipation structure that can effectively extend service life and improve curing uniformity in response to the above-mentioned technical problems.

[0005] A heat dissipation structure for an ultraviolet light source, comprising:

[0006] A mercury lamp mounting housing, wherein the lower part of the mounting housing has an opening, the side of the mounting housing has an air inlet, and the top surface of the mounting housing has an air outlet; and

[0007] The shutter is located inside the mercury lamp mounting housing and is spaced apart from the inner sidewall of the mercury lamp mounting housing. The shutter has a hollow through hole, and the shutter has an air inlet and an air outlet that communicate with the hollow through hole. The air inlet of the shutter is directly opposite the air inlet of the mounting housing, and the air outlet of the shutter is directly opposite the air outlet of the mounting housing.

[0008] In one embodiment, the cross-section of the hollow through hole is approximately arc-shaped.

[0009] In one embodiment, the lower dimension of the hollow through-hole is larger than the upper dimension.

[0010] In one embodiment, the shutter air inlet is located at the lower side of the shutter, and the shutter air outlet is located at the top of the shutter.

[0011] In one embodiment, the number of shutter air inlets is multiple, and they are evenly distributed along the length of the shutter on the side of the shutter; and / or the number of shutter air outlets is multiple, and they are evenly distributed along the length of the shutter on the top surface of the shutter.

[0012] In one embodiment, the size of the air inlet of the mounting housing is larger than the size of the air inlet of the shutter.

[0013] In one embodiment, the outer wall of the shutter is provided with multiple heat dissipation ribs.

[0014] In one embodiment, the device further includes an upper outer cover, a lower outer cover, and a duct shell. The top of the upper outer cover has an air inlet, which serves as an inlet for external cold air. The lower outer cover and the upper outer cover are tightly fitted together by protrusions and sealing grooves, forming a receiving cavity. The mercury lamp mounting shell is located within the receiving cavity. The duct shell is located within the receiving cavity and is disposed on the mercury lamp mounting shell. The duct shell and the mercury lamp mounting shell together form a duct cavity, which is connected to the air outlet of the mounting shell. A guide duct is formed between the outer walls of the mercury lamp mounting shell and the duct shell and the inner walls of the upper and lower outer covers, and the guide duct is connected to the air inlet of the mounting shell.

[0015] An ultraviolet curing device includes a mercury lamp and an ultraviolet light source heat dissipation structure as described in any of the preceding claims. The mercury lamp is disposed inside the mercury lamp mounting housing, and there are two shutters, which are respectively located between the mercury lamp and the side wall of the mercury lamp mounting housing.

[0016] In one embodiment, a glass cover is also included, which is disposed on the lower cover of the housing.

[0017] The above-mentioned ultraviolet light source heat dissipation structure has at least the following advantages:

[0018] During use, an exhaust fan is installed at the air outlet of the mounting housing to create a negative or low-pressure area. Cool air enters from the air inlet on the side of the mercury lamp mounting housing. Since the shutter air inlet is directly opposite the mounting housing air inlet, the mainstream airflow enters the hollow through-hole of the shutter through the shutter air inlet, evenly contacting the inner wall of the hollow through-hole, achieving efficient cooling of the inner wall of the shutter before exiting from the shutter air outlet. A secondary airflow enters the upper part of the inner cavity of the mercury lamp mounting housing through the gap between the shutter and the mercury lamp mounting housing, cooling the upper surface of the shutter before exiting from the mounting housing air outlet. Therefore, it can effectively dissipate heat from the mercury lamp mounting housing and the shutter, effectively extending service life and improving curing uniformity. The open design also improves the heat dissipation efficiency of the mercury lamp mounting housing to some extent. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an ultraviolet curing device in one embodiment;

[0022] Figure 2 for Figure 1 An exploded view of the UV curing equipment shown.

[0023] Figure 3 for Figure 2 The front view of the UV curing equipment shown;

[0024] Figure 4 for Figure 1 The image shows a cross-sectional view of the UV curing equipment, where the dashed lines represent the airflow path.

[0025] Figure 5 for Figure 4 A schematic diagram of the structure of a medium shutter.

[0026] Figure 6 for Figure 4 A front view of a medium shutter speed.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10. Ultraviolet curing equipment; 100. Mercury lamp; 200. Glass cover; 310. Top cover of outer casing; 320. Bottom cover of outer casing; 330. Mercury lamp mounting shell; 340. Air duct shell; 350. Shutter; 311. Air inlet of outer casing; 312. First side plate; 313. First top plate; 314. Upper top plate; 315. Lower top plate; 316. Dustproof opening; 321. Base plate; 322. Second side panel; 331, mounting shell air inlet; 332, mounting shell air outlet; 333, second top panel; 334, third side panel; 341, air duct cavity; 342, air guide duct; 343, cable tray; 344, cable baffle; 345, third top panel; 346, fourth side panel; 351, hollow through hole; 352, shutter air inlet; 353, shutter air outlet; 354, heat dissipation ribs. Detailed Implementation

[0029] The technical solution of this application will be described in detail below through specific embodiments.

[0030] like Figures 1 to 4 As shown, in one embodiment, the ultraviolet curing device 10 includes a mercury lamp 100, an ultraviolet light source heat dissipation structure, and a glass cover plate 200. The mercury lamp 100 is the core light-emitting element. Ultraviolet light is emitted by the mercury lamp 100 to trigger the polymerization reaction of the photosensitive material, thereby achieving the curing of the material.

[0031] The heat dissipation structure of the ultraviolet light source mainly includes an upper outer cover 310, a lower outer cover 320, a mercury lamp mounting shell 330, an air duct shell 340, and a shutter 350. The upper outer cover 310 and the lower outer cover 320 fit together to form an outer shell structure, while the mercury lamp mounting shell 330 and the air duct shell 340 fit together to form an inner shell structure. Thus, the overall structure is a double-shell structure, which is beneficial for optimizing the heat dissipation airflow.

[0032] Specifically, the top of the outer casing 310 is provided with an air inlet 311, which serves as an inlet for external cold air. Multiple air inlets 311 can be provided, spaced apart along the length of the outer casing 310. The outer casing 310 includes two spaced-apart first side plates 312 and a first top plate 313 located between the two first side plates 312. The first top plate 313 includes an upper top plate 314 and at least one lower top plate 315. The upper top plate 314 has at least one dustproof opening 316. The lower top plate 315 has a roughly U-shaped cross-section and is located below the upper top plate 314. The lower top plate 315 prevents the dustproof opening 316 from directly communicating with the interior of the outer casing 310. The air inlets 311 are located on the lower top plate 315, and the air inlets and dustproof openings 316 are staggered. The advantage of this design is that after external dust enters through the dustproof port 316, it will fall on the lower top plate 315 where there is no outer shell air inlet 311, instead of falling directly into the inside of the outer shell cover 310. Therefore, it can effectively prevent external dust from falling into the inside of the outer shell cover 310 through the outer shell air inlet 311.

[0033] Furthermore, in this embodiment, a dustproof net (not shown) can be provided at the dustproof opening 316 to further reduce the probability of external dust falling onto the lower top plate 315. The dustproof net can be installed at the dustproof opening 316 by snap-fit. There can be two dustproof openings 316, spaced apart on the upper top plate 314, and two lower top plates 315, which prevent the dustproof openings 316 from directly communicating with the interior of the outer casing 310. Of course, in other embodiments, the number of dustproof openings 316 can be one, three, or more.

[0034] The lower cover 320 and the upper cover 310 of the outer casing fit together tightly, forming a receiving cavity. A glass cover 200 is disposed on the lower cover 320. Therefore, the upper cover 310, the lower cover 320, and the glass cover 200 together form a sealed receiving cavity, providing an environment for the closed-loop ventilation system. Specifically, the lower cover 320 includes a base plate 321 and two spaced-apart, oppositely arranged second side plates 322. The base plate 321 is connected to the bottom of the two second side plates 322. The second side plates 322 of the lower cover 320 can fit tightly with protrusions and sealing grooves. For example, a sealing groove is provided at the top of the second side plate 322 of the lower cover 320, and a protrusion that mates with the sealing groove is provided at the bottom of the first side plate 312.

[0035] The mercury lamp mounting housing 330 is located within the receiving cavity, primarily in the lower part of the cavity. The mercury lamp mounting housing 330 is mainly used to mount the mercury lamp 100. The mercury lamp mounting housing 330 has an opening at its bottom, through which the mercury lamp 100 is inserted. This opening also improves the heat dissipation efficiency of the mercury lamp mounting housing to some extent. Multiple air inlets 331 are provided on the side of the mercury lamp mounting housing 330, spaced apart along its length. Multiple air outlets 332 are provided on the top surface of the mercury lamp mounting housing 330, also spaced apart along its length.

[0036] Specifically, the mercury lamp mounting housing 330 includes a second top plate 333 and two third side plates 334 spaced apart and opposite to each other. The second top plate 333 is connected to the top of the two third side plates 334. The mounting housing air inlet 331 is opened on the third side plate 334, and the mounting housing air outlet 332 is opened on the second top plate 333.

[0037] The duct housing 340 is located within the receiving cavity and is mounted on the mercury lamp mounting housing 330. The duct housing 340 and the mercury lamp mounting housing 330 together form a duct cavity 341. The duct cavity 341 is connected to the air outlet 332 of the mounting housing. Therefore, the airflow from the air outlet 332 of the mounting housing converges into the duct cavity 341 and can be extracted together by the exhaust fan. For example, the duct housing 340 is fixed to the top of the mercury lamp mounting housing 330 with screws via a connecting plate. The outer walls of the mercury lamp mounting housing 330 and the air duct housing 340 form a guide air duct 342 between the inner walls of the outer shell upper cover 310 and the outer shell lower cover 320. The guide air duct 342 is connected to the air inlet 331 of the mounting housing. Therefore, the external cold air entering from the outer shell air inlet 311 flows from top to bottom along the guide air duct 342, which can carry away the heat of the outer shell upper cover 310, the outer shell lower cover 320 and the mercury lamp mounting housing 330, thereby improving the heat dissipation efficiency.

[0038] Specifically, the air duct shell 340 includes a third top plate 345 and two fourth side plates 346 spaced apart and opposite to each other. The third top plate 345 is connected to the top of the two fourth side plates 346. The distance between the third top plate 345 and the lower top plate 315 forms the top portion of the air duct 342. The distance between the first side plate 312 and the fourth side plate 346 forms the upper portion of the air duct 342. The distance between the first side plate 312, the second side plate 322 and the third side plate 334 forms the lower portion of the air duct 342. The top portion, the upper portion and the lower portion of the air duct together form the air duct 342.

[0039] Furthermore, in this embodiment, the fourth side plate 346 of the air duct shell 340 is recessed to form a wire receiving groove 343, which is used to receive the wires. The groove opening of the wire receiving groove 343 is provided with a wire blocking plate 344, which is used to isolate the internal wiring area and ensure air circulation between the outer cover 310 and the air duct shell 340.

[0040] The shutter 350 is located inside the mercury lamp mounting housing 330, and is positioned directly opposite the mercury lamp mounting housing 330. The shutter 350 is mainly used for reflective focusing to improve curing efficiency. Specifically, in this embodiment, there can be two shutters 350, with the two shutters 350 located between the mercury lamp 100 and the side wall of the mercury lamp mounting housing 330, respectively, for better reflective focusing.

[0041] Please participate Figure 5 and Figure 6 Furthermore, the shutter 350 has a hollow through-hole 351, and the shutter 350 has a shutter air inlet 352 and a shutter air outlet 353 that communicate with the hollow through-hole 351. The shutter air inlet 352 is directly opposite the mounting housing air inlet 331, and the shutter air outlet 353 is directly opposite the mounting housing air outlet 332. There is a gap between the shutter 350 and the inner sidewall of the mercury lamp mounting housing 330. Therefore, the mainstream airflow entering from the mounting housing air inlet 331 enters the hollow through-hole 351 of the shutter 350 through the shutter air inlet 352 to dissipate heat from the inside of the shutter 350, and then flows out from the shutter air outlet 353 and merges into the mounting housing air outlet 332. The tributary airflow entering from the mounting housing air inlet 331 passes through the shutter air inlet 352 into the interior of the mercury lamp mounting housing 330, dissipating heat from the outside of the shutter 350 before converging into the mounting housing air outlet 332. Therefore, both the interior and exterior of the shutter 350 are adequately cooled, significantly extending its service life. It should be clarified that the term "aligned" here should be interpreted in the broadest sense, encompassing not only cases where the central axes of the shutter air inlet 352 and the mounting housing air inlet 331 are completely aligned, but also cases where the central axes are not completely aligned. The goal is to ensure that airflow from both the shutter air inlet 352 and the mounting housing air inlet 331 flows smoothly into the mounting housing air inlet 331.

[0042] Furthermore, the cross-section of the hollow through-hole 351 is approximately arc-shaped to increase the contact area between the mainstream airflow and the interior of the shutter 350, thereby further improving heat dissipation efficiency. The lower dimension of the hollow through-hole 351 is larger than the upper dimension to conform to the profile material structure design of the shutter 350.

[0043] Furthermore, the shutter air inlet 352 is located on the lower side of the shutter 350. Since the shutter air inlet 352 is designed to face the mounting housing air inlet 331, the shutter 350 is located on the lower side of the shutter 350. Therefore, the mounting housing air inlet 331 on the mercury lamp mounting housing 330 also needs to be designed to be lower. This can extend the downward travel of the air duct 342, and remove heat from the upper housing cover 310, lower housing cover 320, air duct housing 340, and mercury lamp mounting housing 330 more effectively. The shutter air outlet 353 is located at the top of the shutter 350. Therefore, the mainstream airflow has a longer travel inside the shutter 350, which can remove heat from the shutter 350 more efficiently.

[0044] Furthermore, there are multiple shutter air inlets 352, which are evenly distributed along the length of the shutter 350 on its sides; and multiple shutter air outlets 353, which are evenly distributed along the length of the shutter 350 on its top surface. Since the shutter 350 is approximately a long strip with a roughly arc-shaped cross-section, providing multiple shutter air inlets 352 and shutter air outlets 353 can make heat dissipation more uniform.

[0045] Furthermore, the size of the air inlet 331 of the mounting housing is larger than the size of the air inlet 352 of the shutter. This design allows for a reasonable distribution of the main airflow and the tributary airflow, resulting in higher heat dissipation efficiency.

[0046] Furthermore, the outer wall of the shutter 350 is provided with multiple heat dissipation ribs 354 to increase the heat dissipation area of ​​the shutter 350 and further improve the heat dissipation efficiency.

[0047] The specific working principle of the ultraviolet curing equipment 10 and the heat dissipation structure of the ultraviolet light source is as follows:

[0048] In use, an exhaust fan is installed at the tail of the air duct housing 340 to create a negative pressure or low pressure area in the air duct cavity 341. External cold air enters through the housing air inlet 311 on the top of the housing cover 310, and then flows from top to bottom along the guide air duct 342. It then enters the mercury lamp mounting housing 330 through the mounting housing air inlet 331 on the side of the mercury lamp mounting housing 330, and then enters the air duct cavity 341 through the mounting housing air outlet 332 on the top surface of the mercury lamp mounting housing 330. After that, it is drawn out by the exhaust fan. The air duct circulates in one direction inside, ensuring that the mercury lamp 100 is at the optimal operating temperature while maximizing the efficiency of cooling the shutter 350 and the housing structure.

[0049] Because of the double-layer shell structure, which combines an upper shell 310, a lower shell 320, a mercury lamp mounting shell 330, and an air duct shell 340, the airflow enters through the air inlet 311 at the top of the upper shell 310, then flows downwards along the air duct 342, and finally enters the mercury lamp mounting shell 330 through the mounting shell air inlet 331 on the side. Since the shutter 350 is directly opposite the mercury lamp mounting shell 330, it does not directly blow air onto the mercury lamp 100 for cooling, effectively preventing over-cooling. Furthermore, the airflow along the air duct 342 formed by the double-layer shell structure, flowing downwards and then from bottom to center, also carries away heat from the upper shell 310, lower shell 320, mercury lamp mounting shell 330, air duct shell 340, and shutter 350, improving overall heat dissipation efficiency and extending service life.

[0050] In addition, after the cold air enters through the air inlet 331 on the side of the mercury lamp mounting housing 330, since the shutter air inlet 352 is directly opposite to the air inlet 331, the mainstream airflow enters the hollow through-hole 351 of the shutter 350 through the shutter air inlet 352, and evenly contacts the inner wall of the hollow through-hole 351 of the shutter 350, so as to achieve efficient cooling of the inner wall of the shutter 350 and then exit from the shutter air outlet 353. The secondary airflow enters the upper part of the inner cavity of the mercury lamp mounting housing 330 through the gap between the shutter 350 and the mercury lamp mounting housing 330, cools the upper surface of the shutter 350 (the inner wall and the upper surface can also be said to be the three heat dissipation surfaces of the shutter, and the cold air can achieve the effect of cooling the three heat dissipation surfaces of the shutter) and then exits through the air outlet 332. Therefore, efficient heat dissipation can be achieved on the inner and outer walls of the mercury lamp mounting housing 330 and shutter 350, effectively extending service life and improving curing uniformity.

[0051] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0055] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 an electrical 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 utility model according to the specific circumstances.

[0056] In this utility model, 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," "on top of," and "over" 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.

[0057] 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.

Claims

1. A heat dissipation structure for an ultraviolet light source, characterized in that, include: A mercury lamp mounting housing, wherein the lower part of the mounting housing has an opening, the side of the mounting housing has an air inlet, and the top surface of the mounting housing has an air outlet; and The shutter is located inside the mercury lamp mounting housing and is spaced apart from the inner sidewall of the mercury lamp mounting housing. The shutter has a hollow through hole, and the shutter has an air inlet and an air outlet that communicate with the hollow through hole. The air inlet of the shutter is directly opposite the air inlet of the mounting housing, and the air outlet of the shutter is directly opposite the air outlet of the mounting housing.

2. The ultraviolet light source heat dissipation structure according to claim 1, characterized in that, The cross-section of the hollow through hole is approximately arc-shaped.

3. The ultraviolet light source heat dissipation structure according to claim 2, characterized in that, The lower dimension of the hollow through hole is larger than the upper dimension.

4. The ultraviolet light source heat dissipation structure according to claim 1, characterized in that, The shutter air inlet is located on the lower side of the shutter, and the shutter air outlet is located on the top of the shutter.

5. The ultraviolet light source heat dissipation structure according to claim 1, characterized in that, The shutter air inlets are multiple and are evenly distributed along the length of the shutter on the side of the shutter; and / or the shutter air outlets are multiple and are evenly distributed along the length of the shutter on the top surface of the shutter.

6. The ultraviolet light source heat dissipation structure according to claim 1, characterized in that, The size of the air inlet of the mounting housing is larger than the size of the air inlet of the shutter.

7. The ultraviolet light source heat dissipation structure according to claim 1, characterized in that, The outer wall of the shutter is provided with multiple heat dissipation ribs.

8. The ultraviolet light source heat dissipation structure according to any one of claims 1 to 7, characterized in that, It also includes an outer shell top cover, an outer shell bottom cover, and an air duct shell. The top of the outer shell top cover has an outer shell air inlet, which is an inlet for external cold air. The outer shell bottom cover and the outer shell top cover are tightly fitted together by protrusions and sealing grooves, and the outer shell bottom cover and the outer shell top cover together form a receiving cavity. The mercury lamp mounting housing is located within the receiving cavity; the air duct housing is located within the receiving cavity and is disposed on the mercury lamp mounting housing. The air duct housing and the mercury lamp mounting housing together enclose an air duct cavity, which is connected to the air outlet of the mounting housing. A guide air duct is formed between the outer walls of the mercury lamp mounting housing and the air duct housing and the inner walls of the upper and lower outer covers of the outer shell, and the guide air duct is connected to the air inlet of the mounting housing.

9. A UV curing device, characterized in that, The device includes a mercury lamp and a heat dissipation structure for an ultraviolet light source as described in any one of claims 1 to 8, wherein the mercury lamp is disposed inside the mercury lamp mounting housing, and the device has two shutters, which are respectively located between the mercury lamp and the side wall of the mercury lamp mounting housing.

10. The ultraviolet curing equipment according to claim 9, characterized in that, It also includes a glass cover plate, which is disposed on the lower cover of the housing.

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