Fan-shaped light source for detecting appearance of circular truncated cone

Abstract

The utility model discloses a fan-shaped light source for detecting the appearance of a circular truncated cone, which comprises a short circumference arranged at the bottom, a fan-shaped bottom plate arranged on one side of the short circumference and a fan-shaped diffusion plate arranged on the other side of the short circumference, and the upper part of the fan-shaped bottom plate is connected with the upper part of the fan-shaped diffusion plate through a long circumference. The short circumference, the fan-shaped bottom plate, the fan-shaped diffusion plate and the long circumference form an accommodating space; a fan-shaped circuit board is further arranged in the containing space, the fan-shaped circuit board is bonded to the upper side of the fan-shaped bottom plate through heat conduction glue, the fan-shaped circuit board and the fan-shaped diffusion plate are arranged in parallel in a spaced mode, a plurality of patch lamp beads are evenly attached to the fan-shaped circuit board, the patch lamp beads emit light outwards, light paths are scattered through the fan-shaped diffusion plate, and even illumination is achieved. The utility model provides a fan-shaped light source for detecting the appearance of a circular truncated cone. The fan-shaped light source can wrap a large-area circular truncated cone cambered surface and uniformly illuminate the circular truncated cone cambered surface.

Description

Technical Field

[0001] The utility model relates to the technical field of light source detection, in particular to a fan-shaped light source for detecting the appearance of a truncated table. Background Art

[0002] It is extremely difficult to detect surface defects of fan-shaped products. A truncated cone is one of such difficult-to-detect items. The surface of the truncated cone includes an upper plane, a lower plane, and an inclined fan. When the volume of the truncated cone to be detected is small, a fan-shaped ring light source can be used for lighting when detecting the appearance of a part of its surface. However, when the volume of the truncated cone is large, the surface area to be detected is also large, such as truncated cone flower pots, porcelain, etc., so a larger area needs to be evenly illuminated. Due to structural limitations, the height of such fan-shaped ring light sources cannot be too high, and the circuit board of this type of light source itself is relatively thin. Once the height is too high, the larger circuit board is easy to collapse and cannot maintain its shape, thus affecting the lighting effect. At this time, a fan-shaped light source is needed to wrap and evenly illuminate a larger area of ​​the truncated cone arc. Utility Model Content

[0003] The utility model aims to overcome the defect of small illumination range in the prior art and provide a fan-shaped light source for detecting the appearance of a truncated cone, which can wrap and evenly illuminate the truncated cone arc surface with a larger area.

[0004] To achieve the above-mentioned purpose, the utility model provides a fan-shaped light source for detecting the appearance of a truncated cone, comprising a short circumference installed at the bottom, a fan-shaped base plate installed on one side of the short circumference and a fan-shaped diffuser installed on the other side of the short circumference, the upper part of the fan-shaped base plate and the upper part of the fan-shaped diffuser are connected through a long circumference, and the short circumference, the fan-shaped base plate, the fan-shaped diffuser and the long circumference form an accommodating space; a fan-shaped circuit board is also installed inside the accommodating space, the fan-shaped circuit board is bonded to the upper side of the fan-shaped base plate by thermal conductive adhesive, and is arranged parallel to the fan-shaped diffuser at intervals, a number of SMD lamp beads are evenly attached to the fan-shaped circuit board, and the SMD lamp beads emit light outward, and the light path is dispersed through the fan-shaped diffuser to achieve uniform lighting.

[0005] Preferably, the fan-shaped circuit board and the fan-shaped base plate are also fixed together by bolts.

[0006] Preferably, a fan-shaped transparent plate is further installed on the upper side of the fan-shaped diffusion plate, the fan-shaped transparent plate is tightly attached to the fan-shaped diffusion plate, and the upper part of the fan-shaped transparent plate, the upper part of the fan-shaped diffusion plate and the long circumference are fixed together by bolts.

[0007] Preferably, a fan-shaped longitudinal brightness enhancement film and a fan-shaped transverse brightness enhancement film are sequentially installed between the fan-shaped diffusion plate and the fan-shaped transparent plate from bottom to top.

[0008] Preferably, it further includes a power cord which passes through the sector bottom plate and is electrically and signal - connected to the sector circuit board.

[0009] Preferably, a left end plate is installed on one side of the short circumference and the sector bottom plate, and a right end plate is installed on the other side; the left end plate and the right end plate are fixedly connected to the short circumference and the sector bottom plate by bolts; the short circumference, the sector bottom plate, the sector transparent plate, the long circumference, the left end plate and the right end plate form a closed space.

[0010] Preferably, a first arc - shaped groove for installing the sector circuit board is provided on one side of the short circumference, and a second arc - shaped groove for installing the sector diffuser plate, the sector longitudinal brightening film, the sector transverse brightening film and the sector transparent plate is provided on the other side.

[0011] Preferably, the sector bottom plate includes a first connecting part installed at the bottom, a second connecting part installed at the upper part and an inclined part installed in the middle. The first connecting part is connected to the short circumference by bolts, the second connecting part is connected to the long circumference by bolts. The first arc - shaped groove is provided with an inclined surface, and the inclination angle of the inclined surface is the same as that of the inclined part. The sector circuit board is attached to the inclined surface and the inclined part.

[0012] Preferably, the long circumference is L - shaped, and a placing surface is provided on one side of the long circumference. The upper ends of the sector diffuser plate and the sector transparent plate are sequentially placed on the placing surface from bottom to top and are fixedly connected to the placing surface by bolts.

[0013] Preferably, both the left end plate and the right end plate are provided with accommodation grooves for accommodating the sector transparent plate and the sector diffuser plate.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Inside the accommodation space of the present utility model, a sector circuit board is further installed. The sector circuit board is bonded to the upper side of the sector bottom plate by a thermal conductive adhesive and is arranged in parallel at an interval with the sector diffuser plate. A number of surface - mount lamp beads are evenly attached to the sector circuit board. The surface - mount lamp beads emit light outward, and the light path is diffused through the sector diffuser plate to achieve uniform illumination; when illuminating a relatively large frustum - shaped object surface, a more uniform illumination effect can be obtained.

[0016] 2. The present utility model uses surface - mount lamp beads without pins, which can make full use of the accommodation space. The sector circuit board is fixed by using a thermal conductive adhesive and is attached to the upper side of the sector bottom plate at the same time, so that the sector circuit board has a stable attachment and a stable support. The height can be made higher, it is not easy to collapse, and the shape can be stably maintained, thus having a more uniform illumination effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a front structural schematic diagram of a sector-shaped light source provided by the present invention for detecting the appearance of a frustum.

[0019] Figure 2 It is a bottom structural schematic diagram of a sector-shaped light source provided by the present invention for detecting the appearance of a frustum.

[0020] Figure 3 It is a front exploded schematic diagram of a sector-shaped light source provided by the present invention.

[0021] Figure 4 It is a front structural schematic diagram of the sector-shaped light source with the left end plate removed provided by the present invention.

[0022] Figure 5 It is Figure 4 An enlarged schematic diagram of part A in

[0023] Figure 6 It is Figure 4 An enlarged schematic diagram of part B in

[0024] Figure 7 It is an internal structural schematic diagram of the right end plate provided by the present invention.

[0025] In the figure, there are included:

[0026] 1. Short perimeter; 2. Sector bottom plate; 4. Sector diffuser plate; 5. Long perimeter; 6. Accommodation space; 3. Sector circuit board; 7. Sector transparent plate; 81. Sector longitudinal brightness enhancement film; 82. Sector transverse brightness enhancement film; 9. Power cord; 91. Left end plate; 92. Right end plate; 11. First arc-shaped groove; 12. Second arc-shaped groove; 21. First connection part; 23. Second connection part; 22. Inclined part; 111. Inclined slope; 51. Placing surface; 93. Accommodation groove. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are one of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1 to 7 , the present invention provides a sector-shaped light source for detecting the appearance of a frustum.

[0029] As Figure 1 and Figure 4 shown, the sector-shaped light source is also frustum-shaped, but only a part of the frustum; specifically, it includes a short circumference 1 installed at the bottom, a sector-shaped bottom plate 2 installed on one side of the short circumference 1, and a sector-shaped diffuser plate 4 installed on the other side of the short circumference 1. The upper parts of the sector-shaped bottom plate 2 and the sector-shaped diffuser plate 4 are connected by a long circumference 5. Both the short circumference 1 and the long circumference 5 are semi-circular rings; when placed as Figure 4 shown, the short circumference 1 is the support surface; when placed as Figure 2 shown, the long circumference 5 is the support surface; as Figure 4 shown, the short circumference 1, the sector-shaped bottom plate 2, the sector-shaped diffuser plate 4 and the long circumference 5 form an accommodation space 6; there is a certain distance between the sector-shaped bottom plate 2 and the sector-shaped diffuser plate 4, so that the accommodation space 6 has a certain space, which also provides a certain space basis for the divergence of light later.

[0030] As Figure 4 and Figure 5 shown, a sector-shaped circuit board 3 is also installed inside the accommodation space 6. The sector-shaped circuit board 3 is inclined and bonded to the upper side of the sector-shaped bottom plate 2 by a heat-conducting adhesive, and is arranged in parallel and spaced apart from the sector-shaped diffuser plate 4. A number of surface-mounted lamp beads are evenly attached to the sector-shaped circuit board 3. Using surface-mounted lamp beads without pins can make full use of the accommodation space 6. The surface-mounted lamp beads emit light outward, and the light path is diffused through the sector-shaped diffuser plate 4 to achieve uniform illumination and improve the uniformity of the light of the light source in this embodiment.

[0031] One side of the heat-conducting adhesive bonds to the sector-shaped bottom plate 2, and the other side bonds to the sector-shaped circuit board 3, thereby fixing the sector-shaped circuit board 3 above the sector-shaped bottom plate 2; the sector-shaped circuit board 3 is inclined and leans against the sector-shaped bottom plate 2, and the sector-shaped bottom plate 2 provides a stable attachment and stable support for it. The heights of both the sector-shaped circuit board 3 and the sector-shaped bottom plate 2 can be made higher, and the sector-shaped circuit board 3 is not easily collapsed and can stably maintain its shape, so as to have a more uniform illumination effect.

[0032] Further, the thermal conductive adhesive can transfer the heat generated by the sector circuit board 3 to the sector base plate 2, and then dissipate it into the air, which is beneficial to the heat dissipation of the sector circuit board 3.

[0033] Furthermore, in order to further reinforce the connection between the sector circuit board 3 and the sector base plate 2, the sector circuit board 3 and the sector base plate 2 are also fixedly connected together by bolts, so that the sector circuit board 3 is not easily deformed, maintains its original shape, and emits uniform light and uniform illumination stably outward.

[0034] As Figure 5 shown, a sector transparent plate 7 is also installed on the upper side of the sector diffuser plate 4. The sector transparent plate 7 is located at the outermost part to protect one side of the sector light source, which is beneficial to extending the service life of the sector light source and the internal brightness enhancement film; Further, the sector transparent plate 7 is closely attached to the sector diffuser plate 4. As Figure 6 shown, the upper part of the sector transparent plate 7, the upper part of the sector diffuser plate 4, and the long perimeter 5 are fixedly connected together by bolts; the fixation of the upper part of the sector transparent plate 7 and the upper part of the sector diffuser plate 4 is realized.

[0035] As Figure 5 and Figure 6 shown, a sector longitudinal brightness enhancement film 81 and a sector transverse brightness enhancement film 82 are successively installed between the sector diffuser plate 4 and the sector transparent plate 7 from bottom to top. The sector longitudinal brightness enhancement film 81 and the sector transverse brightness enhancement film 82 correct the light emitted by the SMD lamp beads to increase the luminous efficiency.

[0036] As Figure 2 shown, the sector light source further includes a power cord 9. The power cord 9 passes through the sector base plate 2 and is electrically and signal-connected to the sector circuit board 3. The power cord 9 supplies power to the sector circuit board 3 and also provides a control signal to control the SMD lamp beads on the sector circuit board 3 to emit light outward.

[0037] As Figure 1 shown, a left end plate 91 is installed on one side of the short perimeter 1 and the sector base plate 2, and a right end plate 92 is installed on the other side; the left end plate 91 and the right end plate 92 are fixedly connected to the short perimeter 1 and the sector base plate 2 by bolts; the short perimeter 1, the sector base plate 2, the sector transparent plate 7, the long perimeter 5, the left end plate 91, and the right end plate 92 form a closed space. In this way, the accommodating space can be sealed, and then the sector circuit board 3, the SMD lamp beads, the sector diffuser plate 4, the sector longitudinal brightness enhancement film 81, and the sector transverse brightness enhancement film 82 in the accommodating space can be protected, improving the service life of the sector light source.

[0038] As Figure 5As shown, on one side of the short circumferential ring 1, there is a first arc-shaped groove 11 for installing the sector circuit board 3, and on the other side, there is a second arc-shaped groove 12 for installing the sector diffuser plate 4, the sector longitudinal brightness enhancement film 81, the sector transverse brightness enhancement film 82, and the sector transparent plate 7. Among them, the first arc-shaped groove 11 is concentric with the short circumferential ring 1, which not only facilitates the installation of the sector circuit board 3 but also makes the installed sector circuit board 3 concentric with the short circumferential ring 1. Among them, the second arc-shaped groove 12 is concentric with the short circumferential ring 1, which not only facilitates the installation of the sector diffuser plate 4, the sector longitudinal brightness enhancement film 81, the sector transverse brightness enhancement film 82, and the sector transparent plate 7 but also makes the installed sector diffuser plate 4, the sector longitudinal brightness enhancement film 81, the sector transverse brightness enhancement film 82, and the sector transparent plate 7 concentrically arranged, thereby improving the uniformity of light divergence of this technical solution.

[0039] As Figure 2 shown, the sector bottom plate 2 includes a first connecting portion 21 installed at the bottom, a second connecting portion 23 installed at the upper part, and an inclined portion 22 installed in the middle. The first connecting portion 21 is bolted to the short circumferential ring 1, the second connecting portion 23 is bolted to the long circumferential ring 5, the first arc-shaped groove 11 is provided with an inclined surface 111, and the inclined angle of the inclined surface 111 is the same as that of the inclined portion 22. The sector circuit board 3 is attached to the inclined surface 111 and the inclined portion 22.

[0040] As Figure 3 shown, the long circumferential ring 5 is L-shaped. As Figure 6 shown, on one side of the long circumferential ring 5, there is a placement surface 51. The upper ends of the sector diffuser plate 4 and the sector transparent plate 7 are sequentially placed on the placement surface 51 from bottom to top and are fixedly connected to the placement surface 51 by bolts.

[0041] As Figure 7 shown, the left end plate 91 and the right end plate 92 have the same structure and are both provided with a receiving groove 93 for accommodating the sector transparent plate 7 and the sector diffuser plate 4. The receiving groove 93 also positions and fixes the sector transparent plate 7 and the sector diffuser plate 4, making the connection more stable.

[0042] The assembly steps of the sector light source:

[0043] Step S1: As Figure 4 shown, take out the short circumferential ring 1 and place it at the bottom. The first connecting portion 21 of the sector bottom plate 2 is bolted to the short circumferential ring 1 to realize the connection between the short circumferential ring 1 and the sector bottom plate 2.

[0044] Step S2: Coat the inner side of the sector bottom plate 2 with heat-conducting glue, and paste the sector circuit board 3 on the heat-conducting glue; and fix the sector bottom plate 2 and the sector circuit board 3 by bolts. The lower end of the sector circuit board 3 is placed inside the first arc-shaped groove 11.

[0045] Step S3: Take out the long peripheral ring 5, and connect the second connecting portion 23 and the long peripheral ring 5 by bolts.

[0046] Step S4: Place the bottom of the sector diffuser plate 4 inside the second arc-shaped groove 12, and place the upper part on the placement surface 51 of the long peripheral ring 5. Then, place the sector longitudinal brightness enhancement film 81 and the sector transverse brightness enhancement film 82 on the sector diffuser plate 4 in sequence from bottom to top.

[0047] Step S5: Place the sector transparent plate 7 on the upper side of the sector transverse brightness enhancement film 82. Among them, place the bottom inside the second arc-shaped groove 12 and the upper part on the placement surface 51 of the long peripheral ring 5. The upper ends of the sector diffuser plate 4 and the sector transparent plate 7 are fixedly connected to the placement surface 51 by bolts.

[0048] Step S6: Install the left end plate 91 on one side of the short peripheral ring 1 and the sector bottom plate 2, and install the right end plate 92 on the other side of the short peripheral ring 1 and the sector bottom plate 2. Insert the sector transparent plate 7 and the sector diffuser plate 4 into the accommodation groove 93. The left end plate 91 and the right end plate 92 are fixedly connected to the short peripheral ring 1 and the sector bottom plate 2 by bolts, thereby completing the assembly of the sector light source.

[0049] The above embodiments are the preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and are all included in the protection scope of the present invention.

Claims

1. A fan-shaped light source for detecting the appearance of a truncated cone, characterized in that: The invention comprises a short circumference (1) installed at the bottom, a fan-shaped bottom plate (2) installed at one side of the short circumference (1), and a fan-shaped diffusion plate (4) installed at the other side of the short circumference (1); the upper part of the fan-shaped bottom plate (2) and the upper part of the fan-shaped diffusion plate (4) are connected through a long circumference (5); the short circumference (1), the fan-shaped bottom plate (2), the fan-shaped diffusion plate (4) and the long circumference (5) form a storage space (6); a fan-shaped circuit board (3) is also installed inside the storage space (6); the fan-shaped circuit board (3) is bonded to the upper side of the fan-shaped bottom plate (2) through a heat-conducting adhesive, and is arranged parallel to the fan-shaped diffusion plate (4) at intervals; a plurality of SMD lamp beads are evenly attached to the fan-shaped circuit board (3); the SMD lamp beads emit light outwards, and the light path is dispersed through the fan-shaped diffusion plate (4) to achieve uniform lighting.

2. A fan-shaped light source for detecting the appearance of a truncated cone according to claim 1, characterized in that: The fan-shaped circuit board (3) and the fan-shaped bottom plate (2) are also fixedly connected together by bolts.

3. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 1, characterized in that: A fan-shaped transparent plate (7) is also installed on the upper side of the fan-shaped diffusion plate (4). The fan-shaped transparent plate (7) and the fan-shaped diffusion plate (4) are tightly attached together. The upper part of the fan-shaped transparent plate (7), the upper part of the fan-shaped diffusion plate (4) and the long circumference (5) are fixed together by bolts.

4. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 3, characterized in that: A fan-shaped longitudinal brightness enhancement film (81) and a fan-shaped transverse brightness enhancement film (82) are sequentially installed between the fan-shaped diffusion plate (4) and the fan-shaped transparent plate (7) from bottom to top.

5. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 1, characterized in that: It also includes a power line (9), which passes through the fan-shaped base plate (2) and is electrically and signal-connected to the fan-shaped circuit board (3).

6. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 3, characterized in that: A left end plate (91) is installed on one side of the short circumference (1) and the fan-shaped bottom plate (2), and a right end plate (92) is installed on the other side; the left end plate (91) and the right end plate (92) are fixedly connected to the short circumference (1) and the fan-shaped bottom plate (2) by bolts; the short circumference (1), the fan-shaped bottom plate (2), the fan-shaped transparent plate (7), the long circumference (5), the left end plate (91) and the right end plate (92) form a closed space.

7. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 4, characterized in that: The short circumference (1) is provided with a first arc-shaped groove (11) on one side for mounting a fan-shaped circuit board (3), and a second arc-shaped groove (12) on the other side for mounting a fan-shaped diffusion plate (4), a fan-shaped longitudinal brightness enhancement film (81), a fan-shaped transverse brightness enhancement film (82) and a fan-shaped transparent plate (7).

8. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 7, characterized in that: The fan-shaped bottom plate (2) comprises a first connecting portion (21) installed at the bottom, a second connecting portion (23) installed at the top and an inclined portion (22) installed in the middle, the first connecting portion (21) is connected to the short circumference (1) by bolts, the second connecting portion (23) is connected to the long circumference (5) by bolts, the first arc-shaped groove (11) is provided with an inclined surface (111), the inclined surface (111) and the inclined portion (22) have the same inclination angle, and the fan-shaped circuit board (3) is attached to the inclined surface (111) and the inclined portion (22).

9. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 3, characterized in that: The long circumference ring (5) is L-shaped, and a placement surface (51) is provided on one side of the long circumference ring (5). The upper ends of the fan-shaped diffusion plate (4) and the fan-shaped transparent plate (7) are placed on the placement surface (51) in sequence from bottom to top, and are fixedly connected to the placement surface (51) by bolts.

10. The fan-shaped light source for detecting the appearance of a truncated cone according to claim 6, characterized in that: The left end plate (91) and the right end plate (92) are both provided with a receiving groove (93) for receiving the sector-shaped transparent plate (7) and the sector-shaped diffusion plate (4).

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