High-uniformity area light source UV lamp box

Abstract

The utility model discloses a high uniformity area light source UV lamp box which comprises a lamp box upper shell and a lower shell and further comprises a heat insulation cover, the heat insulation cover is installed at the bottom of a suspension on the inner side of the lamp box upper shell, an installation frame is arranged in the heat insulation cover, and lamp tube clamps are arranged at the two ends of the bottom of the installation frame. A lamp tube is detachably mounted between the two lamp tube clamps; and a reflective inner bowl with an arc-shaped reflective surface is arranged in the lower shell. According to the utility model, the reflective inner bowl with the arc-shaped reflective surface is arranged in the lower shell of the lamp box. And the arc-shaped reflecting surface can enable the light to be more uniformly distributed in the reflecting and refracting processes. For line light sources such as a mercury lamp and a halogen lamp, the arc-shaped reflective surface can reflect and refract light rays at different angles, so that the conditions of light ray concentration and uneven dispersion are effectively reduced, and the irradiation uniformity is remarkably improved. Not only is the irradiation effect improved, but also the problems of excessive or insufficient local irradiation and the like caused by uneven irradiation are avoided.

Description

Technical Field

[0001] This utility model relates to the field of UV light box technology, specifically a UV light box with high uniformity surface light source. Background Technology

[0002] UV irradiation technology, as a key link in modern industrial processing, has deeply penetrated into fields such as printing, electronics, medical, 3D printing, and semiconductor manufacturing. In traditional UV light box designs, long strip UV light boxes often use long, curved mirror aluminum or coated quartz sheets as reflectors. In large-area irradiation applications, there is a lack of effective control over the diffused light from mercury lamps and halogen lamps. The uniformity of illumination is usually less than 80%, which leads to problems such as unclear development of circuit board edges during PCB exposure, incomplete curing of 3D printing resin, and uneven wafer debonding (anti-adhesion) processing. Utility Model Content

[0003] The purpose of this invention is to provide a UV light box with high uniformity surface light source to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-uniformity surface light source UV lamp box, comprising an upper housing and a lower housing, and further comprising...

[0005] A heat insulation cover is installed on the bottom of the suspension inside the upper housing of the light box. The heat insulation cover is provided with a mounting bracket inside. Both ends of the bottom of the mounting bracket are provided with lamp tube clips. A lamp tube can be detachably installed between the two lamp tube clips. A rotary shutter is also installed inside the heat insulation cover outside the mounting bracket via a rotating shaft. One end of the rotating shaft extends to the outside of the heat insulation cover and is provided with a rotating cylinder. A limit block is installed on the rotating shaft outside the rotating cylinder.

[0006] The lower housing is provided with a reflective inner bowl with an arc-shaped reflective surface, and a connecting edge three is provided at the bottom edge of the lower housing. The edge of the reflective inner bowl is provided with a connecting edge four that matches the connecting edge three. Both the connecting edge three and the connecting edge four are provided with a one-to-one corresponding bolt hole.

[0007] Furthermore, the volume of the lower housing matches the volume of the reflective inner bowl, and the reflective inner bowl is detachably installed inside the lower housing, with an opening at the top of the reflective inner bowl for exposing the lamp tube.

[0008] Furthermore, the upper housing of the light box is connected to the lower housing via a connecting edge at the bottom edge, and the top of the lower housing is provided with a rectangular hole that communicates with the internal space of the upper housing of the light box.

[0009] Furthermore, one end of the upper housing of the light box is provided with a window for exposing the rotating cylinder and the limiting block, and two micro switches connected to the rotating cylinder are also provided inside the window.

[0010] Furthermore, an arc-shaped groove is provided on the side wall of the rotating shutter at the position corresponding to the rotation axis, and the width of the arc-shaped groove is greater than the diameter of the rotation axis.

[0011] Furthermore, a duct flange for connecting to external equipment is provided at the center of the top of the upper housing of the light box, and the upper housing of the light box is rotatable through the duct flange.

[0012] Furthermore, heat dissipation holes are evenly distributed on the bottom of the outer side of the lower housing.

[0013] Furthermore, the bottom of the heat insulation cover is provided with a connecting edge two that is installed on the top of the lower housing, and both ends of the bottom of the heat insulation cover are provided with two pole terminals that are connected to the lamp tube clamp.

[0014] This invention provides a UV light box with high uniformity surface light source, which has significant advantages over existing technologies, as detailed below:

[0015] 1. This utility model incorporates a reflective inner bowl with an arc-shaped reflective surface inside the lower housing of the lamp box. The arc-shaped reflective surface allows for a more uniform distribution of light during reflection and refraction. For linear light sources such as mercury lamps and halogen lamps, the arc-shaped reflective surface reflects and refracts light at different angles, effectively reducing uneven light concentration and dispersion, thus significantly improving irradiance uniformity. This not only enhances the irradiance effect but also avoids problems such as excessive or insufficient localized irradiation caused by uneven irradiation.

[0016] 2. The reflective inner cup matches the connecting edge four of the lower housing with the connecting edge three, and bolt holes are provided for connection, allowing the reflective inner cup to be detachably installed inside the lower housing. The modular design not only facilitates installation and maintenance but also allows users to replace panels with different diffusion coefficients for different UV lamps (such as mercury lamps or LEDs). For example, a high-haze quartz plate can be used for mercury lamps, and a low-haze diffusion film for LEDs, thereby achieving optimized adaptation to different light sources and improving the flexibility and applicability of the lightbox.

[0017] 3. A rotary shutter is mounted on the outside of the lamp tube mounting bracket via a rotating shaft. One end of the rotating shaft extends to the outside of the heat shield and is equipped with a rotating cylinder. A limit block is installed on the rotating shaft outside the rotating cylinder. Combined with an arc-shaped groove on the side wall of the rotary shutter, wider than the diameter of the rotating shaft, the rotary shutter can rotate 180 degrees around the lamp tube. This design not only allows users to easily adjust the position of the rotary shutter according to actual needs but also effectively controls the duration of illumination, avoiding overexposure or underexposure, thus improving efficiency and effectiveness. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the exploded structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 3 This is a bottom view of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the reflective inner bowl installation structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the heat insulation cover structure of this utility model;

[0024] Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 7 This is a schematic diagram of the internal structure of the reflective inner bowl of this utility model;

[0026] Figure 8 For the present utility model Figure 1 Enlarged internal structure diagram at point B;

[0027] In the diagram: 1. Upper housing of the light box; 101. Duct flange; 102. Suspension; 103. Window; 104. Connecting edge one; 2. Heat insulation cover; 201. Mounting bracket; 202. Rotary shutter; 203. Arc-shaped groove; 204. Rotating shaft; 205. Lamp tube clamp; 206. Limit block; 207. Micro switch; 208. Rotary cylinder; 209. Connecting edge two; 210. Two-pole terminal block; 3. Lamp tube; 4. Lower housing; 401. Heat dissipation hole; 402. Rectangular hole; 403. Connecting edge three; 5. Reflective inner cup; 501. Connecting edge four; 502. Opening; 503. Bolt hole; 504. Arc-shaped reflective surface; 505. Mounting groove; 6. Coated quartz glass. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0029] Please see Figure 1-8 The present invention provides an embodiment of a high-uniformity surface light source UV lamp box, comprising an upper housing 1 and a lower housing 4, and further comprising...

[0030] Heat insulation cover 2 is installed at the bottom of the suspension 102 inside the upper housing 1 of the light box. The heat insulation cover 2 is provided with a mounting bracket 201 inside. Both ends of the bottom of the mounting bracket 201 are provided with lamp tube clips 205. A lamp tube 3 can be detachably installed between the two lamp tube clips 205. A rotating shutter 202 is also installed inside the heat insulation cover 2 outside the mounting bracket 201 through a rotating shaft 204. An arc-shaped groove 203 is provided on the side wall of the rotating shutter 202 at the position corresponding to the rotating shaft 204. The width of the arc-shaped groove 203 is greater than the diameter of the rotating shaft 204.

[0031] Upper housing 1 of the light box: The upper housing 1 of the light box is the top structure of the entire light box. It is made of high-strength material and has good heat resistance and anti-aging properties.

[0032] Heat insulation cover 2: The heat insulation cover 2 is installed at the bottom of the suspension 102 inside the upper housing 1 of the light box. The suspension 102 is connected to the upper housing 1 of the light box by screws or other fixing methods to ensure the stable installation of the heat insulation cover 2. The heat insulation cover 2 is made of a high reflectivity material to improve the utilization rate of UV light.

[0033] Mounting bracket 201: Mounting bracket 201 is located inside the heat insulation cover 2 and is fixed to the bottom of the heat insulation cover 2 by welding or screws. The design of mounting bracket 201 should ensure that it has sufficient strength and rigidity to support the weight of lamp tube 3.

[0034] Lamp clip 205: A lamp clip 205 is provided at each end of the bottom of the mounting bracket 201. The structural design of the lamp clip 205 enables it to engage with both ends of the lamp tube 3, realizing the quick installation and removal of the lamp tube 3.

[0035] Lamp 3: Lamp 3 is a UV lamp, which is detachably mounted between the two ends of the bottom of the mounting bracket 201 via lamp clip 205. The selection of lamp 3 should ensure that the UV light emitted has high uniformity and sufficient intensity.

[0036] Rotating shutter 202: The rotating shutter 202 is installed inside the outer side of the heat shield 2 via a rotating shaft 204. The rotating shutter 202 can rotate 180° to block the lamp tube 3, which can effectively control the duration of illumination, avoid overexposure or underexposure, and improve the efficiency and effect of use.

[0037] Rotating shaft 204: The rotating shaft 204 is fixed to the side wall of the heat shield 2, and the rotating shutter 202 rotates through the rotating shaft 204. The diameter of the rotating shaft 204 should be smaller than the width of the arc-shaped slot 203 to ensure that the rotating shutter 202 can rotate smoothly.

[0038] Arc-shaped slot 203: An arc-shaped slot 203 is provided on the side wall of the rotating shutter 202 at the position corresponding to the rotation axis 204. The width of the arc-shaped slot 203 is greater than the diameter of the rotation axis 204, so that the arc-shaped slot 203 can move smoothly along the rotation axis 204 when the rotating shutter 202 rotates around the rotation axis 204.

[0039] One end of the rotating shaft 204 extends to the outside of the heat insulation cover 2 and is provided with a rotating cylinder 208. A limit block 206 is installed on the rotating shaft 204 outside the rotating cylinder 208.

[0040] One end of the rotating shaft 204 is fixed to the inside of the heat insulation cover 2, and the other end extends to the outside of the heat insulation cover 2. The material of the rotating shaft 204 should have high rigidity and wear resistance, and stainless steel or high-strength alloy material is usually selected. A rotating cylinder 208 is provided at the outer end of the rotating shaft 204 to ensure that the rotating cylinder 208 rotates synchronously with the rotating shaft 204.

[0041] The limiting block 206 is mounted on the rotating shaft 204, located outside the rotating cylinder 208. The material of the limiting block 206 should have a certain degree of elasticity and wear resistance, and is usually made of materials such as rubber or nylon. The limiting block 206 is designed to be annular or semi-annular, with its inner side tightly fitting the rotating shaft 204 and its outer side contacting the edge of the rotating cylinder 208.

[0042] The function of the limit block 206 is to limit the rotation angle of the rotating shutter, ensuring that the rotating shutter rotates within the set range.

[0043] When the user needs to adjust the direction of the rotating shutter, simply rotate the rotary cylinder 208. Rotating the cylinder 208 drives the rotating shaft 204 and the rotating shutter to rotate together. Due to the presence of the limit block 206, the rotation angle of the rotating shutter is limited to within 180 degrees, avoiding damage or inconvenience caused by excessive rotation of the rotating shutter.

[0044] The upper housing 1 of the light box is connected to the lower housing 4 via a connecting edge 104 at the bottom edge, and the bottom of the heat insulation cover 2 is provided with a connecting edge 209 that is installed on the top of the lower housing 4.

[0045] The top of the lower housing 4 is provided with a rectangular hole 402 that communicates with the internal space of the upper housing 1 of the light box.

[0046] One end of the upper housing 1 of the light box is provided with a window 103 for exposing the rotating cylinder 208 and the limiting block 206, and two micro switches 207 connected to the rotating cylinder 208 are provided inside the window 103 for detecting the opening and closing status of the rotating shutter 202.

[0047] A connecting edge 104 is provided at the bottom edge of the upper housing 1 of the light box, which is used to connect with the lower housing 4.

[0048] The bottom of the heat insulation cover 2 is provided with a connecting edge 209, which is used for installation connection with the top of the lower housing 4. Furthermore, both ends of the bottom of the heat insulation cover 2 are provided with two-pole terminals 210 that connect to the lamp tube clamp 205.

[0049] The top of the lower housing 4 is provided with a rectangular hole 402, which communicates with the internal space of the upper housing 1 of the light box, facilitating the installation and maintenance of internal components.

[0050] The top edge of the lower housing 4 is provided with a connection structure that matches the connecting edge 104, ensuring a firm connection between the upper housing 1 and the lower housing 4 of the light box.

[0051] The lower housing 4 has a reflective inner bowl 5 with an arc-shaped reflective surface 504 inside. The volume of the lower housing 4 matches the volume of the reflective inner bowl 5. The reflective inner bowl 5 can be detachably installed inside the lower housing 4. The top of the reflective inner bowl 5 has an opening 502 for exposing the lamp tube 3.

[0052] A connecting edge 3 403 is provided at the bottom edge of the lower housing 4, and a connecting edge 4 501 matching the connecting edge 3 403 is provided at the edge of the reflective inner bowl 5. A bolt hole 503 is evenly provided on both the connecting edge 3 403 and the connecting edge 4 501.

[0053] The bottom of the outer side of the lower housing 4 is provided with heat dissipation holes 401 evenly distributed.

[0054] The internal volume of the lower housing 4 is designed to match the volume of the reflective inner cup 5 to ensure that the reflective inner cup 5 can be stably installed inside the lower housing 4. A connecting edge 3 403 is provided at the bottom edge of the lower housing 4, and bolt holes 503 are evenly distributed on the connecting edge 3 403 for fixing to the connecting edge 4 501 of the reflective inner cup 5.

[0055] In addition, heat dissipation holes 401 are evenly distributed on the outer bottom of the lower housing 4. The design of the heat dissipation holes 401 not only effectively improves the heat dissipation effect of the lamp, but also ensures the overall aesthetics of the lamp. The distribution and size of the heat dissipation holes 401 have been optimized to ensure the best heat dissipation effect and structural strength.

[0056] The reflective inner cup 5 is made of a high-reflectivity material, and its inner surface has an arc-shaped reflective surface 504. The arc-shaped reflective surface 504 effectively reflects the light emitted by the lamp tube 3, thereby improving the light utilization rate and enhancing the lighting effect of the lamp. The top of the reflective inner cup 5 is provided with an opening 502 for exposing the lamp tube 3. The size and shape of the opening 502 match the lamp tube 3 to ensure that the lamp tube 3 can be installed smoothly and exposed in an appropriate manner.

[0057] The bottom of the reflective inner bowl 5 is provided with coated quartz glass 6, and both sides of the opening of the reflective inner bowl 5 are provided with mounting grooves 505 for fixing the coated quartz glass 6.

[0058] The reflective inner cup 5 has a connecting edge 501 that matches the connecting edge 403 of the lower housing 4. The connecting edge 501 also has evenly distributed bolt holes 503, which securely connect the reflective inner cup 5 to the lower housing 4 using bolts. The design of the reflective inner cup 5 allows for easy disassembly and installation, facilitating routine maintenance and replacement.

[0059] The upper housing 1 of the light box has a duct flange 101 at the center of its top, which is connected to an external cooling fan. The upper housing 1 of the light box can rotate through the duct flange 101.

[0060] The design of the duct flange 101 allows it to rotate 360 ​​degrees, making it convenient for users to adjust the connection direction according to actual needs.

[0061] When this application embodiment is used,

[0062] The heat insulation cover 2 is fixed to the bottom of the inner side of the upper housing 1 of the light box by means of the suspension 102. The suspension 102 is connected to the upper housing 1 by screws to ensure that the heat insulation cover 2 is horizontal and stable. The connecting edge 209 at the bottom of the heat insulation cover 2 is aligned with the top of the lower housing 4 and is pre-fixed by bolts to reserve space for the subsequent installation of the reflective inner bowl 5.

[0063] A UV lamp 3 is inserted into the lamp clip 205 at the bottom of the mounting bracket 201. The elastic structure of the lamp clip 205 enables quick locking. The rotating shutter 202 is installed on the outside of the heat shield 2 via the rotating shaft 204. The rotating shaft 204 passes through the arc-shaped slot 203 of the rotating shutter 202, ensuring that the slot width is greater than the shaft diameter (leaving a gap of 0.5-1mm). A rotating cylinder 208 is installed on the exposed end of the rotating shaft 204, and a limiting block 206 is sleeved on the outside. The limiting block 206 contacts the edge of the rotating cylinder 208, limiting the rotation angle of the rotating shutter 202 within the range of 0-180°.

[0064] Place the reflective inner cup 5 inside the lower housing 4, ensuring that the arc-shaped reflective surface 504 faces upward and the top opening 502 is aligned with the position of the lamp tube 3; align the connecting edge 401 of the reflective inner cup 5 with the connecting edge 403 of the lower housing 4 through the bolt hole 503, and tighten the bolts evenly; keep the heat dissipation hole 401 at the bottom of the outer side of the lower housing 4 unobstructed to avoid blockage by foreign objects during assembly.

[0065] The connecting edge 104 of the upper housing 1 of the light box is connected to the top edge of the lower housing 4 and fixed by bolts; the opening 103 of the upper housing 1 exposes the rotating cylinder 208 and the limiting block 206, and the micro switch 207 inside the opening is electrically connected to the lamp tube clamp 205 to complete the circuit conduction.

[0066] After the lamp tube 3 (mercury lamp / halogen lamp) is lit, the light is directed toward the arc-shaped reflective surface 504 of the reflective inner bowl 5; the arc-shaped reflective surface 504 reflects the divergent light emitted by the line light source into a multi-angle beam, which is then evenly distributed to the light-emitting surface of the lower housing 4 through secondary reflection, improving the uniformity to over 90%; when changing the light source type (such as UV LED), the reflective inner bowl 5 is disassembled, and the panel with the corresponding diffusion coefficient is replaced (such as replacing the high haze quartz plate with a low haze diffusion film), and after reinstallation, it is adapted to the new light source.

[0067] The user rotates the rotating cylinder 208 to drive the rotating shutter 202 to rotate, and the arc-shaped slot 203 slides along the rotating shaft 204 to achieve 0-180° rotation; the limiting block 206 abuts against the rotating cylinder 208 when rotating to 180° to prevent excessive rotation; the area of ​​the rotating shutter 202 blocking the lamp tube 3 changes with the rotation angle, thereby controlling the light intensity: the light intensity is strongest when fully open (0°), and it is closed when fully blocked (180°). The intermediate angle can be adjusted to the required exposure dose (such as adjusting to 70° to achieve medium light intensity when exposing PCB).

[0068] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0071] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A UV light box with high uniformity surface light source, comprising an upper housing (1) and a lower housing (4), characterized in that: Also includes Heat insulation cover (2), the heat insulation cover (2) is installed on the bottom of the suspension (102) inside the upper housing (1) of the light box, and the heat insulation cover (2) is provided with a mounting bracket (201). Both ends of the bottom of the mounting bracket (201) are provided with lamp tube clips (205). A lamp tube (3) is detachably installed between the two lamp tube clips (205). The heat insulation cover (2) outside the mounting bracket (201) is also provided with a rotating shutter (202) through a rotating shaft (204). One end of the rotating shaft (204) extends to the outside of the heat insulation cover (2) and is provided with a rotating cylinder (208). A limit block (206) is installed on the rotating shaft (204) outside the rotating cylinder (208). The lower housing (4) is provided with a reflective inner bowl (5) with an arc-shaped reflective surface (504) inside, and a connecting edge three (403) is provided at the bottom edge of the lower housing (4). The edge of the reflective inner bowl (5) is provided with a connecting edge four (501) that matches the connecting edge three (403). Both the connecting edge three (403) and the connecting edge four (501) are provided with a one-to-one corresponding bolt hole (503).

2. The high uniformity surface light source UV lamp box according to claim 1, characterized in that: The volume of the lower housing (4) matches the volume of the reflective inner bowl (5), and the reflective inner bowl (5) is detachably installed inside the lower housing (4). The top of the reflective inner bowl (5) is provided with an opening (502) for exposing the lamp tube (3).

3. The high uniformity surface light source UV lamp box according to claim 1, characterized in that: The upper housing (1) of the light box is connected to the lower housing (4) through a connecting edge (104) provided at the bottom edge position, and the top of the lower housing (4) is provided with a rectangular hole (402) that communicates with the internal space of the upper housing (1) of the light box.

4. The high uniformity surface light source UV lamp box according to claim 1, characterized in that: One end of the upper housing (1) of the light box is provided with a window (103) for exposing the rotating cylinder (208) and the limiting block (206), and two micro switches (207) connected to the rotating cylinder (208) are also provided inside the window (103).

5. A high-uniformity surface light source UV lamp box according to claim 1, characterized in that: The rotating shutter (202) has an arc-shaped groove (203) on its side wall at the position corresponding to the rotating shaft (204), and the width of the arc-shaped groove (203) is greater than the diameter of the rotating shaft (204).

6. A high-uniformity surface light source UV lamp box according to claim 1, characterized in that: The upper housing (1) of the light box is provided with a duct flange (101) at the center of the top, which is connected to external equipment. The upper housing (1) of the light box is rotatable through the duct flange (101).

7. A high-uniformity surface light source UV lamp box according to claim 1, characterized in that: The bottom of the outer side of the lower housing (4) is uniformly provided with heat dissipation holes (401).

8. A high-uniformity surface light source UV lamp box according to claim 1, characterized in that: The bottom of the heat insulation cover (2) is provided with a connecting edge (209) that is installed on the top of the lower housing (4), and both ends of the bottom of the heat insulation cover (2) are provided with two pole terminals (210) that are connected to the lamp tube clamp (205).

9. A high-uniformity surface light source UV lamp box according to claim 1, characterized in that: The bottom of the reflective inner bowl (5) is provided with coated quartz glass (6), and both sides of the opening of the reflective inner bowl (5) are provided with mounting grooves (505) for fixing the coated quartz glass (6).

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