Arc-shaped perforated surface light source

Abstract

The utility model discloses an arc-shaped perforated area light source which comprises an arc-shaped shell, a check ring is arranged in the middle of the arc-shaped shell, an arc-shaped light outlet is formed in the front end of the arc-shaped shell, the check ring is a hollow ring body, and a detection hole is formed in the check ring. The arc-shaped PCB is clamped in the arc-shaped shell, a heat dissipation filling pad is arranged between the arc-shaped PCB and the arc-shaped shell, and the heat dissipation filling pad is tightly attached to the arc-shaped PCB and the arc-shaped shell; an arc-shaped optical shaping piece is connected to the arc-shaped light outlet in a clamped mode and is of a curved surface structure. The check ring sequentially penetrates through the heat dissipation filling pad, the arc-shaped PCB and the middle of the arc-shaped optical shaping piece. The size of the light source can be greatly reduced, the cost of the light source is reduced, the light source becomes lighter, the space utilization rate is increased, and the detection requirements of a plane, a spherical cambered surface and a smooth surface can be met at the same time.

Description

Technical Field

[0001] This utility model relates to the field of detection light source technology, and in particular to an arc-shaped opening surface light source. Background Technology

[0002] Currently available surface light sources are all planar in structure, suitable only for samples with flat surfaces or slight curvatures. They are ill-suited for testing samples with spherical or curved surfaces. When testing spherical or curved samples, a surface light source several times larger than usual is required, increasing costs and yielding limited effectiveness. This is especially true for smooth, spherical or curved samples, where ordinary light sources are ineffective at detecting defects. Therefore, a surface light source that overcomes these limitations is needed. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide an arc-shaped open surface light source, which can greatly reduce the size of the light source, reduce the cost of the light source, make the light source lighter, increase the space utilization rate, and simultaneously meet the detection needs of flat, spherical and smooth surfaces.

[0004] To achieve the above objectives, this utility model provides an arc-shaped aperture surface light source, comprising:

[0005] An arc-shaped housing has a retaining ring in the middle and an arc-shaped light outlet at the front end. The retaining ring is a hollow ring with a detection hole formed on it.

[0006] An arc-shaped PCB circuit board is snapped into the inside of the arc-shaped housing. A heat dissipation pad is provided between the arc-shaped PCB circuit board and the arc-shaped housing. The heat dissipation pad is in close contact with the arc-shaped PCB circuit board and the arc-shaped housing.

[0007] An arc-shaped optical shaping component is snapped onto the arc-shaped light outlet; the arc-shaped optical shaping component has a curved surface structure.

[0008] The retaining ring passes sequentially through the middle of the heat dissipation pad, the arc-shaped PCB circuit board, and the arc-shaped optical shaping component.

[0009] Furthermore, a second through hole is provided in the middle of the arc-shaped PCB circuit board, a third through hole is provided in the middle of the heat dissipation pad, and a fourth through hole is provided in the middle of the arc-shaped optical shaping component. The retaining ring passes through the second, third, and fourth through holes in sequence, allowing the inner walls of the heat dissipation pad, the arc-shaped PCB circuit board, and the arc-shaped optical shaping component to be engaged with the retaining ring. Thus, the retaining ring provides support for the components, making their installation more stable.

[0010] Furthermore, the arc-shaped shell includes an arc-shaped base plate, two arc-shaped side plates, and two end plates. One side of each of the two arc-shaped side plates is fixed to the upper and lower ends of the arc-shaped base plate, respectively, so that the arc-shaped base plate and the two arc-shaped side plates are joined to form a hollow arc-shaped frame. The two end plates are fixed to the ends of the two arc-shaped side plates, and the other side of the two arc-shaped side plates is an arc-shaped light outlet. The use of a split shell structure enables modular production, effectively reducing production costs and providing quick and convenient installation and disassembly.

[0011] Furthermore, a first stepped groove is provided on one side of the two arc-shaped side plates, and the arc-shaped base plate, the heat dissipation pad, and the arc-shaped PCB circuit board are sequentially arranged in the first stepped groove from the outside to the inside. By providing the first stepped groove, the arc-shaped base plate, the heat dissipation pad, and the arc-shaped PCB circuit board can be tightly fitted, allowing the heat dissipation pad to better conduct the heat from the arc-shaped PCB circuit board to the arc-shaped base plate for heat dissipation.

[0012] Furthermore, the two end plates and the two arc-shaped side plates are respectively provided with a first groove and a second groove that are matched in position. The first groove and the second groove are spliced ​​together to form a continuous mounting groove, and the arc-shaped optical shaping component is inserted into the first groove and the second groove. This realizes the snap-fit ​​installation of the arc-shaped optical shaping component, which is simple in structure and convenient for disassembly and repair.

[0013] Furthermore, the front end of the retaining ring has an arc structure, and its curvature matches that of the end face of the arc-shaped optical shaping component, forming a smooth arc surface. This ensures that the arc-shaped end face of the arc-shaped optical shaping component forms a complete arc surface, preventing the front end of the retaining ring from protruding and affecting the overall illumination, thus guaranteeing the stability and effectiveness of the detection light source.

[0014] Furthermore, the heat dissipation pad is a silicone heat dissipation pad.

[0015] Furthermore, the arc-shaped optical shaping component is an arc-shaped diffuser plate. It is used to homogenize light, eliminate the non-uniformity of the light source, or reduce glare.

[0016] Furthermore, the arc-shaped optical shaping component is an arc-shaped grid plate. It is used to control the direction of light, reduce stray light, or form a specific light field distribution.

[0017] Furthermore, multiple sets of LED beads are arranged in an array on the arc-shaped PCB circuit board.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. This arc-shaped opening surface light is perfectly suited for detecting spherical arc surface samples. Compared with ordinary light sources for detecting arc surface samples, this invention can greatly reduce the size of the light source, reduce the cost of the light source, make the light source lighter, increase the space utilization rate, and better meet the actual detection needs while meeting the detection effect.

[0020] 2. This utility model adopts a baffle ring set in the middle position and forms a detection port inside the baffle ring. The baffle ring not only supports the internal components, but also avoids the influence of light from the curved PCB circuit board inside the housing, thereby ensuring the quality of the detection effect.

[0021] 3. The arc-shaped optical shaping component of this utility model adopts a snap-fit ​​structure, which enables quick replacement. For example, in the detection of general spherical arcs and planes, the arc-shaped optical shaping component can directly use a diffuser plate. When detecting spherical arc surfaces and smooth samples, the arc-shaped optical shaping component can use an arc-shaped grid plate to detect surface defects, which greatly optimizes the detection process, improves detection efficiency, and meets different adaptability requirements. Attached Figure Description

[0022] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an arc-shaped open-face light source according to this utility model;

[0024] Figure 2 yes Figure 1 A cross-sectional view along line AA;

[0025] Figure 3 yes Figure 1 A schematic diagram of the decomposition process;

[0026] Figure 4 This is an exploded view of the arc-shaped shell of this utility model;

[0027] Figure 5 This is an assembly diagram of the two arc-shaped side plates and the two ends of this utility model;

[0028] Figure 6 yes Figure 1 Another perspective illustration.

[0029] The diagram includes:

[0030] 1. Arc-shaped housing; 11. Arc-shaped base plate; 111. Retaining ring; 1111. Detection hole; 112. First through hole; 12. Arc-shaped side plate; 121. First stepped groove; 122. Second groove; 13. End plate; 131. First groove; 14. Arc-shaped light outlet; 2. Arc-shaped PCB circuit board; 21. Second through hole; 22. LED lamp bead; 3. Arc-shaped optical shaping component; 31. Fourth through hole; 4. Heat dissipation pad; 41. Third through hole. Detailed Implementation

[0031] The technology of this embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of the present invention, and not all embodiments thereof. Based on this embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0034] Please see Figures 1 to 6 An embodiment of this utility model provides an arc-shaped open-face light source, including an arc-shaped housing 1, an arc-shaped PCB circuit board 2, an arc-shaped optical shaping component 3, and a heat dissipation pad 4.

[0035] like Figure 2 As shown, in this embodiment, the arc-shaped shell 1 includes an arc-shaped bottom plate 11, two arc-shaped side plates 12 and two end plates 13. One side of the two arc-shaped side plates 12 is fixed to the upper and lower ends of the arc-shaped bottom plate 11 respectively, so that the arc-shaped bottom plate 11 and the two arc-shaped side plates 12 are spliced ​​together to form a hollow arc-shaped frame. The two end plates 13 are fixed to the ends of the two arc-shaped side plates 12, and the other side of the two arc-shaped side plates 12 forms an arc-shaped light outlet 14.

[0036] The specific connection between the two arc-shaped side plates 12 and the arc-shaped base plate 11 is as follows: a first stepped groove 121 is provided on one side of the two arc-shaped side plates 12, and the end of the arc-shaped base plate 11 is placed directly on the outermost side of the first stepped groove 121. The arc-shaped PCB circuit board 2 is snapped into the inner side of the first stepped groove 121, so that the arc-shaped PCB circuit board 2 is placed inside the arc-shaped housing 1. A heat dissipation filling pad 4 is provided between the arc-shaped PCB circuit board 2 and the arc-shaped housing 1. Then, the arc-shaped base plate 11 and the two arc-shaped side plates 12 are locked together by screws. The arc-shaped base plate 11, the heat dissipation filling pad 4 and the arc-shaped PCB circuit board 2 are arranged sequentially from the outside to the inside in the first stepped groove 121, so that the heat dissipation filling pad 4 is tightly attached to the arc-shaped PCB circuit board 2 and the arc-shaped housing 1. In this way, the heat dissipation filling pad 4 can better conduct the heat of the arc-shaped PCB circuit board 2 to the arc-shaped base plate 11 for heat dissipation.

[0037] Among them, the heat dissipation pad 4 is a silicone heat dissipation pad, which can quickly transfer the heat of the arc-shaped PCB circuit board 2 to the arc-shaped base plate 11 for heat dissipation.

[0038] like Figure 5 As shown, a first groove 131 and a second groove 122 with matching positions are respectively provided on the two end plates 13 and the two arc-shaped side plates 12. After the arc-shaped shell 1 is assembled, the first groove 131 and the second groove 122 are placed inside the arc-shaped light outlet 14. Therefore, when the two ends are fixed to the two arc-shaped side plates 12 by screws, the first groove 131 and the second groove 122 are spliced ​​to form a continuous mounting groove. The arc-shaped optical shaping component 3 is inserted into the first groove 131 and the second groove 122, thereby realizing the arc-shaped light outlet 14. The curved optical shaping component 3 is snapped onto the arc-shaped light outlet 14. This utility model of the curved optical shaping component 3 can be configured as an arc-shaped diffuser plate or an arc-shaped grid plate according to different needs. Generally, an arc-shaped diffuser plate is used to homogenize light, eliminate the non-uniformity of the light source, or reduce glare, which can meet the testing needs of most products. However, when testing samples with a spherical arc surface and smooth surface, the curved optical shaping component 3 can be replaced with an arc-shaped grid plate to detect surface defects, which greatly optimizes the testing process and improves testing efficiency.

[0039] like Figure 3 and Figure 4As shown, a retaining ring 111 is fixedly attached to the middle of the arc-shaped base plate 11. The retaining ring 111 is a hollow ring with a detection hole 1111 formed on it. A first through hole 112 is provided on the arc-shaped base plate 11. The retaining ring 111 surrounds the first through hole 112 and is fixedly attached to the arc-shaped base plate 11, so that the first through hole 112 and the detection hole 1111 are connected. The retaining ring 111 passes through the middle of the heat dissipation pad 4, the arc-shaped PCB circuit board 2, and the arc-shaped optical shaping component 3 in sequence. Specifically, a second through hole 21 is provided in the middle of the arc-shaped PCB circuit board 2, a third through hole 41 is provided in the middle of the heat dissipation pad 4, and a fourth through hole 31 is provided in the middle of the arc-shaped optical shaping component 3. The retaining ring 111 passes through the second through hole 21, the third through hole 41, and the fourth through hole 31 in sequence, so that the inner wall of the middle part of the heat dissipation pad 4, the arc-shaped PCB circuit board 2, and the arc-shaped optical shaping component 3 is connected to the retaining ring 111. In this way, when in use, the light or other incident light from the curved PCB circuit board 2 will not enter the detection hole 1111 inside the retaining ring 111 and interfere with the detection operation, which can effectively improve the detection accuracy.

[0040] Preferably, such as Figure 6 As shown, the front end of the retaining ring 111 has an arc structure, and its curvature matches that of the end face of the arc-shaped optical shaping component 3, forming a smooth arc surface. This ensures that the arc end face of the arc-shaped optical shaping component 3 forms a complete arc surface, and the front end of the retaining ring 111 will not protrude and affect the overall illumination, thus guaranteeing the stability and effectiveness of the detection light source.

[0041] like Figure 3 As shown, multiple sets of LED beads 22 are arranged in an array on the curved PCB circuit board 2.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A light source with an arc-shaped opening, characterized in that, include: An arc-shaped housing (1) is provided with a retaining ring (111) in the middle of the arc-shaped housing (1) and an arc-shaped light outlet (14) is provided at the front end of the arc-shaped housing (1). The retaining ring (111) is a hollow ring body and a detection hole (1111) is formed on the retaining ring (111). An arc-shaped PCB circuit board (2) is snapped into the inside of the arc-shaped housing (1). A heat dissipation filling pad (4) is provided between the arc-shaped PCB circuit board (2) and the arc-shaped housing (1). The heat dissipation filling pad (4) is tightly attached to the arc-shaped PCB circuit board (2) and the arc-shaped housing (1). An arc-shaped optical shaping component (3) is snapped onto the arc-shaped light outlet (14), and the arc-shaped optical shaping component (3) has a curved surface structure; The retaining ring (111) passes through the middle of the heat dissipation filling pad (4), the arc-shaped PCB circuit board (2), and the arc-shaped optical shaping component (3) in sequence.

2. The arc-shaped aperture surface light source according to claim 1, characterized in that, The arc-shaped PCB circuit board (2) has a second through hole (21) in the middle, the heat dissipation filling pad (4) has a third through hole (41) in the middle, and the arc-shaped optical shaping component (3) has a fourth through hole (31) in the middle. The retaining ring (111) passes through the second through hole (21), the third through hole (41) and the fourth through hole (31) in sequence, so that the inner wall of the middle part of the heat dissipation filling pad (4), the arc-shaped PCB circuit board (2) and the arc-shaped optical shaping component (3) is connected to the retaining ring (111).

3. The arc-shaped aperture surface light source according to claim 1, characterized in that, The arc-shaped shell (1) includes an arc-shaped bottom plate (11), two arc-shaped side plates (12) and two end plates (13). One side of the two arc-shaped side plates (12) is fixed to the upper and lower ends of the arc-shaped bottom plate (11) respectively, so that the arc-shaped bottom plate (11) and the two arc-shaped side plates (12) are spliced ​​together to form a hollow arc-shaped frame. The two end plates (13) are fixed to the ends of the two arc-shaped side plates (12). The other side of the two arc-shaped side plates (12) is an arc-shaped light outlet (14).

4. The arc-shaped aperture surface light source according to claim 3, characterized in that, A first stepped groove (121) is provided on one side of the two arc-shaped side plates (12), and the arc-shaped bottom plate (11), heat dissipation filling pad (4) and arc-shaped PCB circuit board (2) are arranged sequentially from the outside to the inside in the first stepped groove (121).

5. The arc-shaped aperture surface light source according to claim 3, characterized in that, The two end plates (13) and the two arc-shaped side plates (12) are respectively provided with a first groove (131) and a second groove (122) that are matched in position. The first groove (131) and the second groove (122) are spliced ​​together to form a continuous mounting groove. The arc-shaped optical shaping component (3) is inserted into the first groove (131) and the second groove (122).

6. The arc-shaped aperture surface light source according to claim 1, characterized in that, The front end of the retaining ring (111) is an arc structure, and its curvature is consistent with that of the end face of the arc-shaped optical shaping component (3), so that the two form a smooth arc surface.

7. The arc-shaped aperture surface light source according to claim 1, characterized in that, The heat dissipation pad (4) is a silicone heat dissipation pad.

8. A curved aperture surface light source according to claim 7, characterized in that, The arc-shaped optical shaping component (3) is an arc-shaped diffuser plate.

9. A curved aperture surface light source according to claim 1, characterized in that, The arc-shaped optical shaping component (3) is an arc-shaped grid plate.

10. A light source with an arc-shaped opening surface according to claim 1, characterized in that, Multiple sets of LED beads (22) are arranged on the arc-shaped PCB circuit board (2), and the LED beads (22) are arranged in an array on the arc-shaped PCB circuit board (2).

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