Round panel light test fixture
By designing a circular panel light test fixture, and using a closed structure and magnet fixation, the problems of light leakage and size adaptability in light guide plate testing were solved, and fast and accurate light guide plate testing was achieved.
Patent Information
- Application Number
- CN202520073548.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-01-13
AI Technical Summary
In the existing technology, the illuminance uniformity test of the light guide plate requires the light guide plate to be installed in the whole lamp for testing, which leads to stripped screws and light leakage. In addition, it is not suitable for light guide plates of different sizes, the operation is complicated and the light guide plate is easily scratched.
A circular panel light test fixture was designed, including a support frame, a base plate, reflective paper, light strips, a light diffusion plate, and a diaphragm. The closed structure prevents light leakage, and the use of slide rails and sliders enables multi-angle observation. It can adapt to light guide plates of different sizes, and uses magnets to fix the light diffusion plate, simplifying the testing process.
It enables fast and accurate light guide plate testing, avoids light leakage due to stripped screws, adapts to light guide plates of different sizes, reduces operational complexity and the risk of scratches, and improves testing efficiency and accuracy.
Smart Images
Figure CN223637072U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a circular panel lamp test fixture and belongs to the technical field of lamp test fixtures. BACKGROUND
[0002] The side light-emitting LED circular panel lamp is a high-grade indoor lighting lamp, and the light source thereof is LED. The lamp is overall beautiful, simple, atmospheric and luxurious, has good lighting effect, and can bring people a sense of beauty. The side light-emitting LED circular panel lamp is unique in design, and the light-emitting principle thereof is that light forms a uniform planar light-emitting effect after passing through a light guide plate with high light transmittance and adding a diffusion plate, so that the lamp has the advantages of good illuminance uniformity, soft light, comfort and brightness, and can effectively relieve eye fatigue.
[0003] As can be known from the above light-emitting principle, the light guide plate plays a decisive role in the light-emitting effect of the side light-emitting LED circular panel lamp, and whether the overall appearance of the side light-emitting LED circular panel lamp is uniform and whether the light-emitting effect reaches the best depend on the light guide plate. Therefore, in the debugging or process sampling of the side light-emitting LED circular panel lamp product, the illuminance uniformity data of the light guide plate need to be tested to determine whether the side light-emitting LED circular panel lamp product is qualified.
[0004] At present, the device for testing the illuminance uniformity data of the light guide plate in the prior art is generally a luminometer, and the universal testing method is as follows: the light guide plate is installed in the whole lamp, the lamp back plate is locked, the lamp is turned on, and the 9-point test position is tested in sequence. This testing method needs to spend 5-10 minutes for each test, and due to the frequent disassembly and locking of the lamp back plate, the screws on the lamp back plate may be loosened, the lamp back plate may not be locked after being loosened, and the lamp back plate may be damaged, which may cause light leakage, result in errors in the test data, and thus affect the subsequent product quality. In addition, the sizes of the light guide plates of different customers are mostly inconsistent, so various types of whole lamps are needed to correspond to the light guide plates of corresponding sizes. When the light guide plates of different sizes need to be tested, the corresponding type of whole lamp needs to be found, and the whole operation is relatively troublesome, and the light guide plate may be scratched during the lamp installation process. UTILITY MODEL CONTENTS
[0005] In order to solve the above problems in the prior art, the utility model provides a circular panel lamp test fixture.
[0006] The technical scheme of the utility model is as follows:
[0007] A circular panel lamp test fixture, comprising a light guide plate, further comprising a support frame, the upper of the support frame is sequentially provided with a bottom plate, a reflecting paper and a light bar from bottom to top, the light bar is arranged in a closed shape, the light emitting part of the light bar is arranged at the inner side of the light bar, the light guide plate is placed in the light bar, the upper of the light guide plate is covered with a light diffusion plate, the light diffusion plate is arranged at the top of the closed light bar, a diaphragm is further arranged on the top surface of the light diffusion plate, a plurality of positioning holes are formed in the diaphragm, and each positioning hole is used for testing by a lux meter.
[0008] Wherein, the top surface of the support frame is further provided with symmetrically arranged sliding rails, the bottom surface of the bottom plate is provided with symmetrically arranged sliding blocks, both sides of the sliding blocks are slidingly connected in the corresponding side sliding rails, and the bottom plate is slidingly arranged on the top surface of the support frame through the connection of the sliding blocks and the sliding rails.
[0009] Wherein, the outer side of the light bar is further fixedly provided with a circle of heat dissipation aluminum.
[0010] Wherein, the test fixture further comprises a pair of magnet groups, one of the magnets in the magnet group is arranged on the light diffusion plate, the other magnet is arranged on the bottom plate, and when the light diffusion plate covers the top surface of the light guide plate, the two magnets in the magnet group are arranged to be attracted to each other.
[0011] Wherein, the shape of the closed shape surrounded by the light bar is larger than the light guide plate, and the shape of the diaphragm is adapted to the light guide plate.
[0012] The utility model has the following beneficial effects:
[0013] 1, the utility model discloses a support frame, bottom plate, reflecting paper, light bar, light diffusion plate, diaphragm and other components are arranged, when the light guide plate is tested, the light guide plate is placed in the light bar, then the light diffusion plate is covered on the light guide plate, the light diffusion plate is arranged at the top of the closed light bar, so that the light guide plate is in the closed space, to avoid the light leakage, then the light bar is controlled to work, the light emitted by the light bar is transmitted through the light guide plate and the reflecting paper, and then diffused through the light diffusion plate and emitted outward from the positioning hole, at this time, the required data can be obtained by testing each positioning hole by the lux meter, compared with the prior art, the structure is simple, the manufacturing cost is low, the light guide plate does not need to be placed in the whole lamp during testing, not only can avoid the light leakage caused by the screw slipping, but also can speed up the testing speed without rotating the screw, and has the advantages of low manufacturing cost and fast measuring speed.
[0014] 2、The utility model discloses a slide rail and sliding block are set up to enable the bottom plate to be slidably connected on the support frame, through the sliding of the bottom plate on the support frame, the light guide plate can be driven to slide compared with the support frame, thereby can conveniently observe the overall appearance of light guide plate from multiple angles for staff, help staff to find bad products, compared with prior art, have the advantage that the inspection work is convenient to carry out.
[0015] 3、The utility model discloses a closed shape that the lamp strip surrounds is set to be greater than the shape size setting of light guide plate, to be able to accommodate the light guide plate of different sizes and put in, when carrying out detection work, only need to select the diaphragm of size that light guide plate is adapted to can carry out the detection work required, whole operation is simple, difficult to cause the scratch of light guide plate, compared with prior art, have good applicability, the advantage that ensure that light guide plate is not easy to scratch phenomenon occurs. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is the structural diagram of the utility model;
[0017] Fig. 2 It is the exploded view of the utility model;
[0018] Fig. 3 It is the enlarged view of A place;
[0019] Fig. 4 It is the enlarged view of B place;
[0020] Fig. 5 It is the enlarged view of C place.
[0021] The reference signs in the drawing are shown as follows:
[0022] 1, light guide plate;2, support frame;3, bottom plate;4, reflection paper;5, lamp strip;6, light diffusion plate;7, diaphragm;8, positioning hole;9, slide rail;10, sliding block;11, heat dissipation aluminum;12, magnet group. DETAILED DESCRIPTION
[0023] The utility model will be explained in detail below in combination with the drawing and specific embodiment.
[0024] Embodiment: please refer to Figs. 1-5The embodiment provides a circular panel lamp test fixture which comprises a light guide plate 1 and a support frame 2, in the embodiment, the support frame 2 is welded by aluminum profiles and is a rectangular frame structure with four supporting legs, so that the support frame 2 has a stable structure and provides a required operation height, and the specific structure of the support frame 2 can be set according to actual conditions in actual use. A bottom plate 3, a reflecting paper 4 and a light bar 5 are sequentially arranged above the support frame 2 from bottom to top, the bottom plate 3 is arranged on the top surface of the support frame 2, the reflecting paper 4 is fixedly bonded on the top surface of the bottom plate 3, and the light bar 5 is arranged on the top surface of the reflecting paper 4; the light bar 5 is arranged in a closed shape, and the light emitting part of the light bar 5 is arranged at the inner side of the light bar 5; in order to ensure that the reflecting paper 4 can have sufficient reflection effect, the shape and size of the reflecting paper 4 need to be greater than those of the closed shape surrounded by the light bar 5, so as to ensure that the light emitted by the light bar 5 can be fully reflected by the reflecting paper 4. The light guide plate 1 is placed in the light bar 5, and a light diffusion plate 6 is arranged above the light guide plate 1 and covers the top of the light bar 5, so that the light guide plate 1 is arranged in the closed space formed by the light diffusion plate 6, the light bar 5 and the light guide plate 1 when the light guide plate 1 is placed in the light bar 5, thereby avoiding light leakage. A diaphragm 7 is further arranged on the top surface of the light diffusion plate 6, a plurality of positioning holes 8 are formed in the diaphragm 7, and each positioning hole 8 is used for testing by an illuminometer. The specific number and distribution of the positioning holes 8 can be determined according to actual testing requirements.
[0025] Through the foregoing arrangement, when the light guide plate 1 needs to be tested, the worker first places the light bar 5 on the reflecting paper 4, and the light bar 5 can be fixed on the reflecting paper 4 by using glue or by using a common fixing clamp to clamp the light bar 5 on the bottom plate 3. Then the worker places the light guide plate 1 in the light bar 5, covers the light diffusion plate 6 on the light guide plate 1, and arranges the light diffusion plate 6 to cover the top of the light bar 5, so that the light guide plate 1 is arranged in the closed space, thereby avoiding light leakage. Then the worker places the diaphragm 7 on the light diffusion plate 6, and then controls the light bar 5 to work, and the light bar 5 can work by connecting an external power supply and a controller. The light emitted by the light bar 5 is emitted through the light guide plate 1 and the reflecting paper, then passes through the light guide plate 1 and the light diffusion plate 6 again, and is emitted outward from the positioning holes 8. At this time, the worker can obtain required data by testing each positioning hole 8 by using the illuminometer, and can judge the uniformity of the illuminance of the light guide plate 1.
[0026] In order to facilitate the inspection work, in the embodiment, the top surface of the support frame 2 is also provided with symmetrically arranged slide rails 9, and the bottom surface of the bottom plate 3 is fixedly provided with symmetrically arranged slide blocks 10. Both of the slide blocks 10 are slidingly connected to the corresponding side slide rails 9. The bottom plate 3 is slidingly arranged on the top surface of the support frame 2 through the connection of the slide blocks 10 and the slide rails 9. By slidingly connecting the bottom plate 3 and the support frame 2 through the slide blocks 10 and the slide rails 9, when the staff inspects the light guide plate 1, the staff can push the bottom plate 3 to slide on the support frame 2, which can drive the light guide plate 1 on the bottom plate 3 to slide compared with the support frame 2. Therefore, the staff can observe the overall appearance of the light guide plate 1 from multiple angles, which helps the staff to find defective products.
[0027] In order to prolong the service life of the light bar 5, in the embodiment, a circle of heat dissipation aluminum 11 is fixedly arranged on the outer side of the light bar 5. The heat dissipation aluminum 11 can absorb the working heat generated by the light bar 5 during work, so as to reduce the temperature of the light bar 5 and prolong the service life of the light bar 5.
[0028] In order to ensure that the light diffusion plate 6 is not easy to fall off when placed above the light guide plate 1, the test fixture further includes a pair of magnet groups 12. One of the magnet groups 12 is arranged on the light diffusion plate 6, and the other magnet is fixedly arranged on the bottom plate 3. When the light diffusion plate 6 covers the top surface of the light guide plate 1, the two magnets of the magnet group 12 are arranged to attract each other, so as to fix the light guide plate 1. In order to facilitate use, in the embodiment, the bottom plate 3 can be selected as a plate body structure with magnetism, so that the magnets of the magnet group 12 connected with the bottom plate 3 are attracted. The specific number of the magnet group 12 can be determined according to the actual situation. Common light diffusion plates 6 are rectangular structures, so the number of the magnet group 12 is four, which is distributed at the four corner positions of the light diffusion plate 6. By fixing the four corner positions of the light diffusion plate 6, it can be ensured that the light diffusion plate 6 is not easy to fall off when placed above the light guide plate 1.
[0029] In order to adapt to the test work of light guide plates 1 of different sizes, the closed shape surrounded by the light bar 5 is larger than the size of the light guide plate 1. Specifically, it should be larger than the size of the largest common light guide plate 1, or the length of the light bar 5 can be selected according to the actual needs to form a closed shape, so as to ensure that the closed shape surrounded by the light bar 5 is larger than the size of the light guide plate 1. The size of the diaphragm 7 is adapted to the size of the light guide plate 1. When testing light guide plates 1 of different sizes, a diaphragm 7 that matches the size of the light guide plate 1 should be selected to ensure the accuracy of the test results.
[0030] The above merely illustrates the embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which are made according to the content of the present application specification and drawings, are also included in the patent protection scope of the present application.
Claims
1. A circular panel lamp test fixture comprising a light guide plate (1), characterized in that: The support frame (2) is sequentially provided with a bottom plate (3), a reflecting paper (4) and a light bar (5) from bottom to top, the light bar (5) is arranged in a closed shape, the light emitting part of the light bar (5) is arranged at the inner side of the light bar (5), the reflecting paper (4) and the light guide plate (1) are arranged inside the light bar (5), the light guide plate (1) is covered with a light diffusion plate (6) at the top, the light diffusion plate (6) is arranged to close the top of the light bar (5), the top surface of the light diffusion plate (6) is further provided with a diaphragm (7), a plurality of positioning holes (8) are formed in the diaphragm (7), and each positioning hole (8) is used for the test of an illuminometer.
2. The circular panel lamp test fixture of claim 1, wherein: The top surface of the support frame (2) is further provided with symmetrically arranged slide rails (9), the bottom surface of the bottom plate (3) is provided with symmetrically arranged slide blocks (10), the slide blocks (10) on the two sides are slidingly connected in the corresponding slide rails (9), and the bottom plate (3) is slidingly arranged on the top surface of the support frame (2) through the connection of the slide blocks (10) and the slide rails (9).
3. The circular panel lamp test fixture of claim 1, wherein: The outer side of the light bar (5) is further fixedly provided with a row of heat dissipation aluminum (11).
4. The circular panel lamp test fixture of claim 1, wherein: The test fixture further comprises a pair of magnet groups (12), one of the magnet groups (12) is arranged on the light diffusion plate (6), the other magnet is arranged on the bottom plate (3), and the two magnets in the magnet group (12) are arranged to be attracted to each other when the light diffusion plate (6) covers the top surface of the light guide plate (1).
5. The circular panel lamp test fixture of claim 1, wherein: The shape and size of the closed shape of the light bar (5) are larger than those of the light guide plate (1), and the shape and size of the diaphragm (7) are adapted to those of the light guide plate (1).