Integrating sphere test fixture

Abstract

The utility model provides an integrating sphere test fixture, which comprises a mounting base, the middle part of the mounting base is provided with a light-transmitting through hole matched with a light inlet of an integrating sphere, and a positioning step is formed at the joint of one surface of the mounting base back to the integrating sphere and the light-transmitting through hole; the guide structure is mounted on one surface, back to the integrating sphere, of the mounting base; the sliding base is movably mounted on the guide structure; the substrate pressing block is arranged on the sliding base; the connecting terminal is arranged on the sliding base and is positioned at one end, close to the mounting base, of the substrate pressing block; the target substrate is detachably connected to the connecting terminal through a connecting convex part at the bottom end of the target substrate, the target substrate is in a vertical posture matched with the positioning step when being connected to the connecting terminal, and one surface, opposite to the mounting base, of the target substrate is propped against the substrate pressing block; when the target substrate is connected to the connecting terminal, the sliding base is pushed to the mounting base along the guiding structure until the substrate pressing block presses the target substrate to the positioning step and covers the light-transmitting through hole, and the integrating sphere detects light rays emitted into the light inlet by a target light source arranged on the target substrate through the light-transmitting through hole.

Description

Technical Field

[0001] The utility model relates to the technical field of integrating sphere testing, and particularly relates to an integrating sphere testing fixture. Background Art

[0002] At present, the testing fixtures provided on the market for the integrating sphere testing of LED lamp bead aluminum substrates have a relatively complex structure for fixing the LED lamp bead aluminum substrates, resulting in a cumbersome disassembly and assembly process between the LED lamp bead aluminum substrates and the testing fixtures, which is not convenient for the testing operators to quickly replace the LED lamp bead aluminum substrates, thereby affecting the testing efficiency.

[0003] In addition, after the existing testing fixtures fix the LED lamp bead aluminum substrates, it is difficult to avoid gaps at the connection parts between the LED lamp bead aluminum substrates and the testing fixtures. When using the integrating sphere to test the LED lamp bead aluminum substrates, the light leakage at the gaps between the LED lamp bead aluminum substrates and the testing fixtures easily affects the testing effect and accuracy. Summary of the Utility Model

[0004] The utility model provides an integrating sphere testing fixture to solve the technical problem that the disassembly and assembly process between the existing testing fixture and the LED lamp bead aluminum substrate is cumbersome and it is not convenient to quickly replace the LED lamp bead aluminum substrate.

[0005] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0006] The utility model provides an integrating sphere testing fixture, comprising:

[0007] An installation base, provided with a connection structure for docking with the integrating sphere. A light-transmitting through hole matching the position of the light inlet of the integrating sphere is arranged in the middle of the installation base. A positioning step matching the outer shape of the target substrate is formed at the connection part between the side of the installation base facing away from the integrating sphere and the light-transmitting through hole;

[0008] A guiding structure, installed on the side of the installation base facing away from the integrating sphere;

[0009] A sliding base, movably installed on the guiding structure;

[0010] A substrate pressing block, arranged on the sliding base;

[0011] Connection terminals, arranged on the sliding base and located at one end of the substrate pressing block close to the installation base;

[0012] The target substrate is detachably connected to the connection terminals through the connection protrusions at its bottom end. When the target substrate is connected to the connection terminals, it is in a vertical posture matching the positioning step, and the side of the target substrate facing away from the installation base abuts against the substrate pressing block;

[0013] When the target substrate is connected to the connection terminal, the sliding base is pushed along the guiding structure towards the mounting base until the substrate pressing block presses the target substrate against the positioning step and covers the light-transmitting through-hole. At this time, the integrating sphere can detect the light of the target light source provided on the target substrate passing through the light-transmitting through-hole and entering the light inlet.

[0014] Preferably, a relief groove matching the outer shape of the connection terminal is provided at an interval below the positioning step on the side of the mounting base facing away from the integrating sphere, and a relief notch communicating with the relief groove and matching the outer shape of the connection convex part at the bottom end of the target substrate is formed on the bottom end surface of the positioning step;

[0015] When the substrate pressing block presses the target substrate against the positioning step and covers the light-transmitting through-hole, the connection convex part and the connection terminal are respectively snapped into the relief notch and the relief groove.

[0016] Further, the integrating sphere test fixture further includes:

[0017] At least one magnetic part, which is provided on the sliding base or the mounting base;

[0018] When the sliding base slides along the guiding structure to be close to the mounting base, the sliding base and the mounting base are firmly attached by the magnetic attraction of the magnetic part, so that the substrate pressing block presses the target substrate against the positioning step.

[0019] Further, there are a pair of magnetic parts. The mounting base is made of ferromagnetic material. A pair of mounting grooves matching the outer shape of the magnetic parts are provided at an interval on the side of the mounting base facing away from the integrating sphere, and the pair of magnetic parts are respectively embedded in the pair of mounting grooves;

[0020] A pair of mounting through-holes are provided at an interval at one end of the top surface of the sliding base close to the mounting base. One end of the mounting through-hole close to the mounting base communicates with one end of the sliding base close to the mounting base, and a mounting hole is provided on the bottom surface of the mounting through-hole;

[0021] The integrating sphere test fixture further includes:

[0022] A pair of magnetic attraction brackets, made of ferromagnetic material, the magnetic attraction brackets are in an L shape and include a horizontal section and a vertical section which are vertically connected. The outer shape of the horizontal section matches the mounting through-hole, and a connection hole matching the mounting hole is provided on the horizontal section;

[0023] The horizontal section is embedded in the mounting through-hole and is fastened to the sliding base by a connecting piece passing through the corresponding connection hole and the mounting hole, so that the vertical section extends to the outside of one end of the sliding base close to the mounting base;

[0024] When the sliding base slides along the guiding structure until the vertical section is close to the mounting base, the sliding base and the mounting base are firmly attached by the magnetic attraction between the magnetic part and the vertical section.

[0025] Preferably, the guiding structure includes:

[0026] A pair of guide rods, vertically and spacedly connected to both sides of the mounting base;

[0027] A connecting end plate, connected between the ends of a pair of guide rods far from the mounting base;

[0028] A pair of sliders, respectively and movably mounted on a pair of guide rods;

[0029] Both sides of the sliding base are respectively mounted on a pair of sliders.

[0030] Preferably, the connecting terminal is horizontally arranged, and a pair of connecting perforations are respectively provided at the horizontal two ends of the connecting terminal;

[0031] A pair of support columns are spacedly mounted at one end of the sliding base close to the mounting base, fixing holes matching the connecting perforations are provided at the tops of the support columns, and the distance between a pair of fixing holes matches the distance between a pair of connecting perforations;

[0032] The connecting terminal is firmly mounted at one end of the sliding base close to the mounting base by a connecting member passing through the corresponding connecting perforations and fixing holes.

[0033] Preferably, the substrate pressing block includes:

[0034] A pair of support blocks, spacedly arranged on the top surface of the sliding base;

[0035] A U-shaped pressing strip, and both ends of the U-shaped pressing strip are respectively connected to the tops of a pair of support blocks.

[0036] Further, the substrate pressing block further includes:

[0037] At least two flexible cushion blocks, spacedly arranged on the surface of the U-shaped pressing strip close to the mounting base;

[0038] When the target substrate is connected to the connecting terminal, the surface of the target substrate facing away from the mounting base abuts against the flexible cushion blocks.

[0039] Further, the integrating sphere test fixture further includes:

[0040] A push-pull handle, provided on the surface of the U-shaped pressing strip away from the mounting base.

[0041] Preferably, the target substrate is an aluminum substrate, and the target light source is an LED lamp bead provided on the surface of the target substrate facing the light-transmitting through hole.

[0042] Compared with the prior art, the utility model has the following beneficial effects:

[0043] The overall structure of the integrating sphere test fixture provided by the present utility model is simple and low in cost. Moreover, the positioning and docking structure between the LED lamp bead aluminum substrate and the test fixture simplifies the disassembly and assembly process between the LED lamp bead aluminum substrate and the test fixture while maintaining precise positioning of the LED lamp bead aluminum substrate, facilitating the rapid replacement of the LED lamp bead aluminum substrate by test operators, and enabling a single test operator to quickly perform integrating sphere detection operations on a batch of target substrates. In addition, with the cooperation of the positioning structure and the magnetic attraction of the magnetic part, the connection between the target substrate and the test fixture is tightly pressed, avoiding light leakage at the connection and improving the test effect and accuracy when using the integrating sphere to test the LED lamp bead aluminum substrate. Description of the Drawings

[0044] In order to more clearly illustrate the technical solutions proposed by the present utility model, the present utility model will be described in detail below in conjunction with the embodiments and the drawings. It should be understood that the embodiments and the drawings in the following specific implementation manners and the description of the drawings of the specification are only some embodiments of the present utility model, and those skilled in the art can make changes to these drawings under the concept of the present utility model.

[0045] Figure 1 Schematic three-dimensional structure diagram of the test state of the target substrate of the embodiment of the integrating sphere test fixture provided by the present utility model;

[0046] Figure 2 Schematic three-dimensional structure diagram of the target substrate detachment state of the embodiment of the integrating sphere test fixture provided by the present utility model;

[0047] Figure 3 For Figure 2 Schematic three-dimensional structure diagram of disassembling and assembling the target substrate of the integrating sphere test fixture in

[0048] Figure 4 For Figure 1 Schematic exploded three-dimensional structure diagram of the integrating sphere test fixture in

[0049] Among them, the main reference signs of each drawing in the figure are as follows:

[0050] 1. Mounting base; 11. Light-transmitting through-hole; 111. Positioning step; 112. Main mounting hole; 12. Relief groove; 13. Relief notch; 14. Mounting groove; 141. Connecting through-hole; 2. Guide structure; 21. Guide rod; 22. Connecting end plate; 23. Slide block; 231. Mounting flange; 2311. Flange opening; 3. Sliding base; 31. Mounting through-slot; 311. Mounting hole; 32. Clamping hole; 33. Support column; 331. Fixing hole; 4. Substrate pressing block; 41. Support block; 42. U-shaped pressing strip; 421. Flexible cushion block; 5. Connection terminal; 51. Mounting protrusion; 511. Connecting through-hole; 6. Target substrate; 61. Connecting protrusion; 7. Magnetic adsorption bracket; 71. Horizontal section; 711. Connecting hole; 72. Vertical section; 73. Magnetic part; 8. Push-pull handle; 9. Connecting piece. Detailed implementation mode

[0051] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the following further details the present utility model in conjunction with the attached Figures 1-4 drawings and embodiments.

[0052] Please refer to Figures 1-4 together. The integrating sphere test fixture provided by the present utility model includes:

[0053] A vertically arranged mounting base 1, the mounting base 1 is provided with a connecting structure for docking with the integrating sphere, a light-transmitting through-hole 11 is provided in the middle of the mounting base 1, which is matched with the position of the light inlet of the integrating sphere when the mounting base 1 is docked with the integrating sphere (not shown in the figure). At the connection of the side of the mounting base 1 facing away from the integrating sphere and the light-transmitting through-hole 11, a positioning step 111 surrounding the through-hole and matching the outer shape of the target substrate 6 is formed;

[0054] A guide structure 2 is installed on the side of the mounting base 1 facing away from the integrating sphere; a sliding base 3 is movably installed on the guide structure 2 along the guide structure 2; a substrate pressing block 4 is arranged on the sliding base 3; a connection terminal 5 is arranged on the sliding base 3 and is located at one end of the substrate pressing block 4 close to the mounting base 1;

[0055] The target substrate 6 is detachably electrically connected to the connection terminal 5 through the connecting protrusion 61 at its bottom end, and when the target substrate 6 is connected to the connection terminal 5, it is in a vertical posture parallel to the target substrate 6 and matching the positioning step 111, and at the same time, the side of the target substrate 6 facing away from the mounting base 1 abuts against the substrate pressing block 4;

[0056] After the test operator connects the target substrate 6 to the connection terminal 5, the sliding base 3 is pushed along the guiding structure 2 towards the mounting base 1 until the substrate pressing block 4 presses the target substrate 6 against the positioning step 111 and covers the light-transmitting through hole 11. At this time, the connection terminal 5 can be energized to cause the target light source on the target substrate 6 to emit light, and the integrating sphere detects the light that passes through the light-transmitting through hole 11 and enters its light inlet on the target substrate 6.

[0057] In this embodiment, the mounting base 1 is made of aluminum alloy.

[0058] Please refer to Figures 1-4 , in this embodiment, the mounting base 1 is a vertically arranged mounting seat plate, and the connection structure of the mounting base 1 includes:

[0059] A plurality of main mounting holes 112 are evenly spaced around the circumference of the mounting base 1 and penetrate through the two opposite sides of the mounting base 1 near and far from the integrating sphere in the thickness direction of the mounting base 1 (i.e., perpendicular to the mounting base 1). By passing a connecting member 9 through the main mounting holes 112 and the corresponding hole positions of the integrating sphere, the light-transmitting through hole 11 is aligned with the light inlet of the integrating sphere, and the mounting base 1 is firmly mounted on one side of the integrating sphere provided with the light inlet.

[0060] Please refer to Figures 1-4 , in this embodiment, the target substrate 6 is a rectangular aluminum substrate, the target light source is an LED lamp bead (not shown in the figure) provided on one side of the target substrate 6 facing the light-transmitting through hole 11, the positioning step 111 is a rectangular step matching the shape of the rectangular aluminum substrate, and the light-transmitting through hole 11 is a rectangular through hole with an area smaller than that of the rectangular aluminum substrate.

[0061] In other embodiments (not shown in the figure), the mounting base 1, the target substrate 6, the rectangular step, and the light-transmitting through hole 11 may also adopt other geometric shapes.

[0062] Please refer to Figures 1-4 , in this embodiment, a relief groove 12 matching the shape of the connection terminal 5 is provided at an interval below the positioning step 111 on the side of the mounting base 1 facing away from the integrating sphere, and a relief notch 13 communicating with the relief groove 12 and matching the shape of the connection convex part 61 at the bottom end of the target substrate 6 is formed on the bottom end surface of the positioning step 111;

[0063] While the substrate pressing block 4 presses the target substrate 6 against the positioning step 111 and covers the light-transmitting through hole 11, the connection convex part 61 and the connection terminal 5 are respectively snapped into the relief notch 13 and the relief groove 12, so as to achieve structural relief and avoid structural interference.

[0064] Please refer to Figures 1-4 , in this embodiment, the integrating sphere test fixture further includes:

[0065] At least one magnetic member 73 is provided on the sliding base 3 or the mounting base 1, and one of the sliding base 3 and the mounting base 1 where the magnetic member 73 is not provided needs to be made of ferromagnetic material;

[0066] When the sliding base 3 slides along the guiding structure 2 to approach the mounting base 1, the sliding base 3 and the mounting base 1 are firmly attached through the magnetic attraction of the magnetic member 73, so that the substrate pressing block 4 tightly presses the target substrate 6 against the positioning step 111 and tightly covers the through hole, avoiding light leakage at the light-transmitting through hole 11 due to the gap at the connection between the target substrate 6 and the positioning step 111, and improving the test effect and accuracy when testing the LED lamp bead aluminum substrate with an integrating sphere.

[0067] Please refer to Figures 1-4 In this embodiment, there are a pair of magnetic members 73, the mounting base 1 is made of ferromagnetic material, a pair of mounting grooves 14 matching the outer shape of the magnetic members 73 are spacedly arranged on the side of the mounting base 1 facing away from the integrating sphere, a connecting through hole 141 is provided on the bottom surface of the mounting groove 14, the magnetic member 73 is provided with a connecting through hole matching the connecting through hole 141, and a connecting member 9 passes through the corresponding connecting through hole and connecting through hole 141 to respectively embed a pair of magnetic members 73 in a pair of mounting grooves 14;

[0068] A pair of mounting through grooves 31 are spacedly arranged at one end of the top surface of the sliding base 3 close to the mounting base 1, one end of the mounting through groove 31 close to the mounting base 1 communicates with the end surface of the sliding base 3 close to the mounting base 1, and a mounting hole 311 is provided on the bottom surface of the mounting through groove 31; The integrating sphere test fixture further includes:

[0069] A pair of magnetic attraction brackets 7, made of ferromagnetic material, the magnetic attraction brackets 7 are L-shaped, including a horizontal section 71 and a vertical section 72 connected vertically, the outer shape of the horizontal section 71 matches the mounting through groove 31, and the horizontal section 71 is provided with a connecting hole 711 matching the mounting hole 311;

[0070] During assembly, the horizontal section 71 is embedded in the mounting through groove 31, and a connecting member 9 passes through the corresponding connecting hole 711 and mounting hole 311 and is fastened to the sliding base 3, so that the vertical section 72 extends to the outside of one end of the sliding base 3 close to the mounting base 1;

[0071] When the sliding base 3 slides along the guiding structure 2 to make the vertical section 72 close to the mounting base 1, the sliding base 3 and the mounting base 1 are firmly attached through the magnetic attraction between the magnetic member 73 on the mounting base 1 and the vertical section 72.

[0072] In other embodiments (not shown in the figure), the magnetic member 73 can also be provided on the magnetic attraction bracket 7, and the number of the magnetic members 73 can also be one or more.

[0073] In other embodiments (not shown in the figures), an elastic reset member can also be used to replace the magnetic member 73, and the sliding base 3 and the mounting base 1 are firmly attached through the clamping or pressing action of the elastic reset member.

[0074] Please refer to Figures 1-4 together. In this embodiment, the guiding structure 2 includes:

[0075] A pair of guiding rods 21 are vertically connected to both sides of the bottom of the mounting base 1 at intervals, that is, the axial direction of the guiding rods 21 is perpendicular to the mounting base 1 and perpendicular to the target substrate 6 connected to the connection terminal 5, and is parallel to the axial directions of the light-transmitting through holes 11 and the positioning steps 111; a connecting end plate 22 is connected between the ends of the pair of guiding rods 21 away from the mounting base 1, so that the pair of guiding rods 21 are integrated; a pair of sliders 23 are respectively movably mounted on the pair of guiding rods 21; both sides of the sliding base 3 are respectively mounted on the pair of sliders 23.

[0076] Please refer to Figures 1-4 together. In this embodiment, the mounting base 1 is a vertically arranged mounting seat plate, the axial direction of the guiding rods 21 is parallel to the horizontal direction, that is, the guiding rods 21 are vertically connected to the mounting base 1 (mounting seat plate); the sliders 23 are in the form of cylindrical sliding sleeves, and one axial end of the sliding sleeve is provided with a mounting flange 231, and the middle of the mounting flange 231 communicates with the hollow part of the sliding sleeve; both sides of the sliding base 3 are provided with a pair of clamping holes 32 that match the outer shape of the sliding sleeve, and a plurality of connection hole positions 711 are arranged at intervals on the peripheral side of the clamping holes 32 on the end face of the sliding base 3 facing away from the mounting base 1. The peripheral side of the mounting flange 231 is provided with flange openings 2311 that match the connection hole positions 711. The two sides of the sliding base 3 are respectively fastened and mounted on the pair of sliding sleeves through the corresponding flange openings 2311 and connection hole positions 711, and then the sliding base 3 is movably mounted on the pair of guiding rods 21 by respectively sleeving the hollow parts of the pair of sliding sleeves on the outer sides of the pair of guiding rods 21.

[0077] In other embodiments (not shown in the figures), the guiding structure 2 can also include one or more guiding rods 21.

[0078] In other embodiments (not shown in the figures), the guiding structure 2 can also use a guide rail to replace the guiding rods 21.

[0079] Please refer to Figures 1-4 together. In this embodiment, the connection terminal 5 is horizontally arranged, and a pair of mounting bumps 51 are respectively provided at the horizontal two ends of the connection terminal 5. The mounting bumps 51 are provided with connection through holes 511 that extend vertically up and down and penetrate the horizontal top surface and bottom surface of the mounting bumps 51;

[0080] One end of the sliding base 3 close to the mounting base 1 is provided with a pair of support columns 33 spaced apart by a connecting member 9 passing through corresponding hole positions. The horizontal top ends of the support columns 33 are provided with fixing holes 331 matching the connecting through holes 511. The distance between a pair of fixing holes 331 matches the distance between a pair of connecting through holes 511.

[0081] The connecting terminal 5 is firmly installed at one end of the sliding base 3 close to the mounting base 1 by passing the connecting member 9 through the corresponding connecting through holes 511 and fixing holes 331.

[0082] Please refer to Figures 1-4 as well. In this embodiment, the substrate pressing block 4 includes:

[0083] A pair of support blocks 41 are connected to the top surface of the sliding base 3 at intervals by a connecting member 9 passing through corresponding hole positions. The connecting terminal 5 is located between the support block 41 and the mounting base 1; a U-shaped pressing strip 42, and the two open ends of the U-shaped pressing strip 42 are respectively connected to the tops of a pair of support blocks 41.

[0084] When the target substrate 6 is detachably connected to the connecting terminal 5 through the connecting convex portion 61 at its bottom end, the side of the target substrate 6 facing away from the mounting base 1 abuts against the U-shaped pressing strip 42. The sliding base 3 is pushed along the guiding structure 2 towards the mounting base 1 until the magnetic attraction bracket 7 on the sliding base 3 enters the magnetic force range of the magnetic member 73 on the mounting base 1. Under the magnetic attraction of the magnetic member 73 on the magnetic attraction bracket 7, the U-shaped pressing strip 42 presses the target substrate 6 against the positioning step 111 and covers the light-transmitting through hole 11.

[0085] Please refer to Figures 1-4 as well. In this embodiment, the substrate pressing block 4 further includes:

[0086] At least two flexible cushion blocks 421 are arranged at intervals on the side of the U-shaped pressing strip 42 close to the mounting base 1;

[0087] When the target substrate 6 is connected to the connecting terminal 5, the side of the target substrate 6 facing away from the mounting base 1 abuts against the flexible cushion blocks 421.

[0088] When the U-shaped pressing strip 42 presses the target substrate 6 against the positioning step 111 and covers the light-transmitting through hole 11 through the flexible cushion blocks 421, it avoids the U-shaped pressing strip 42 directly contacting the target substrate 6 hard and causing damage to the target substrate 6.

[0089] In this embodiment, the flexible cushion blocks 421 are made of soft rubber.

[0090] In other embodiments, the substrate pressing block 4 can also be a pressing block with other geometric shapes.

[0091] Please refer to Figures 1-4 as well. In this embodiment, the integrating sphere test fixture further includes:

[0092] The push-pull handle 8 is provided on the side of the U-shaped pressing strip 42 away from the mounting base 1, and can be held by the test operator as a force application point when pushing and pulling the sliding base 3, making the operation of the sliding base 3 easier and more labor-saving.

[0093] Please also refer to Figures 1-4 , in this embodiment, the above-mentioned connecting member 9 is a screw or a bolt.

[0094] Please also refer to Figures 1-3 , the working principle of the integrating sphere test fixture provided by the present utility model is as follows:

[0095] The test operator connects the target substrate 6 to the connection terminal 5, and then the test operator pushes the sliding base 3 through the push-pull handle 8 to drive a pair of sliders 23 to slide synchronously along the axial direction of a pair of guide rods 21 close to the mounting base 1, pushes the sliding base 3 towards the mounting base 1 until the substrate pressing block 4 presses the target substrate 6 against the positioning step 111 and covers the light-transmitting through hole 11, and firmly fits the sliding base 3 and the mounting base 1 through the magnetic attraction of the magnetic member 73. After the test operator turns on the power to energize the connection terminal 5 to make the target light source of the target substrate 6 to be tested emit light, and the light passes through the light-transmitting through hole 11 and enters the light inlet of the integrating sphere, the integrating sphere performs the detection operation on the light emitted by the target light source of the target substrate 6 to be tested.

[0096] After the integrating sphere finishes testing the target substrate 6, the test operator pulls the sliding base 3 to overcome the magnetic attraction of the magnetic member 73, drives a pair of sliders 23 to slide synchronously along the axial direction of a pair of guide rods 21 away from the mounting base 1, pulls the sliding base 3 back to disengage from the mounting base 1 until the sliding base 3 reaches the end close to the connection end plate 22 to get out of the magnetic force range of the magnetic member 73, so that the tested target substrate 6 disengages from the positioning step 111. At this time, the test operator can easily and quickly remove the tested target substrate 6 from the connection terminal 5, and then quickly replace the next target substrate 6 to be tested, and cycle in this way to realize the rapid integrating sphere detection operation on a batch of target substrates 6.

[0097] The above is only the preferred embodiment of the present utility model, and is not intended to limit the present utility model. Those of ordinary skill in the art should understand that any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrating sphere test fixture, characterized in that, Comprising: An installation base (1) is provided with a connection structure for docking with an integrating sphere. A light-transmitting through hole (11) matching the position of the light input port of the integrating sphere is provided in the middle of the installation base (1). A positioning step (111) matching the outer shape of the target substrate (6) is formed at the connection of the side of the installation base (1) facing away from the integrating sphere and the light-transmitting through hole (11). A guiding structure (2) is installed on the side of the installation base (1) facing away from the integrating sphere. A sliding base (3) is movably installed on the guiding structure (2). A substrate pressing block (4) is provided on the sliding base (3). Connection terminals (5) are provided on the sliding base (3) and are located at one end of the substrate pressing block (4) close to the installation base (1). The target substrate (6) is detachably connected to the connection terminals (5) through the connection convex portions (61) at its bottom end. When the target substrate (6) is connected to the connection terminals (5), it is in a vertical posture matching the positioning step (111), and the side of the target substrate (6) facing away from the installation base (1) abuts against the substrate pressing block (4). When the target substrate (6) is connected to the connection terminals (5), the sliding base (3) is pushed along the guiding structure (2) towards the installation base (1) until the substrate pressing block (4) presses the target substrate (6) onto the positioning step (111) and covers the light-transmitting through hole (11). At this time, the integrating sphere can detect the light of the target light source provided on the target substrate (6) passing through the light-transmitting through hole (11) and entering the light input port.

2. The integrating sphere test fixture according to claim 1, characterized in that On the side of the installation base (1) facing away from the integrating sphere, a relief groove (12) matching the outer shape of the connection terminals (5) is spaced below the positioning step (111). The bottom end surface of the positioning step (111) forms a relief notch (13) communicating with the relief groove (12) and matching the outer shape of the connection convex portions (61) at the bottom end of the target substrate (6). While the substrate pressing block (4) presses the target substrate (6) onto the positioning step (111) and covers the light-transmitting through hole (11), the connection convex portions (61) and the connection terminals (5) are respectively snapped into the relief notch (13) and the relief groove (12).

3. The integrating sphere test fixture according to claim 1, wherein, Further comprising: At least one magnetic member (73) is provided on the sliding base (3) or the installation base (1). When the sliding base (3) slides along the guiding structure (2) to be close to the installation base (1), the sliding base (3) and the installation base (1) are firmly attached by the magnetic attraction of the magnetic member (73), so that the substrate pressing block (4) presses the target substrate (6) onto the positioning step (111).

4. The integrating sphere test fixture according to claim 3, wherein, There are a pair of the magnetic members (73). The installation base (1) is made of ferromagnetic material. A pair of installation grooves (14) matching the outer shape of the magnetic members (73) are spaced on the side of the installation base (1) facing away from the integrating sphere. The pair of magnetic members (73) are respectively embedded in the pair of installation grooves (14). On the top surface of the sliding base (3), a pair of mounting through slots (31) are spaced apart near one end close to the mounting base (1). One end of the mounting through slot (31) close to the mounting base (1) communicates with one end of the sliding base (3) close to the mounting base (1), and a mounting hole (311) is provided on the bottom surface of the mounting through slot (31). The integrating sphere test fixture further includes: A pair of magnetic adsorption brackets (7), made of ferromagnetic material. The magnetic adsorption bracket (7) is L-shaped and includes a horizontal section (71) and a vertical section (72) connected perpendicularly. The outer shape of the horizontal section (71) matches that of the mounting through slot (31), and a connection hole (711) matching the mounting hole (311) is provided on the horizontal section (71). The horizontal section (71) is embedded in the mounting through slot (31) and is fastened to the sliding base (3) by a connecting member (9) passing through the corresponding connection hole (711) and mounting hole (311), so that the vertical section (72) extends to the outside of one end of the sliding base (3) close to the mounting base (1). When the sliding base (3) slides along the guiding structure (2) until the vertical section (72) is close to the mounting base (1), the sliding base (3) and the mounting base (1) are firmly attached by the magnetic adsorption action between the magnetic member (73) and the vertical section (72).

5. The integrating sphere test fixture according to any one of claims 1-4, characterized in that, The guiding structure (2) includes: A pair of guiding rods (21), spaced apart and perpendicularly connected to both sides of the mounting base (1). A connecting end plate (22), connected between the ends of a pair of the guiding rods (21) far from the mounting base (1). A pair of sliders (23), respectively movably mounted on a pair of the guiding rods (21). Both sides of the sliding base (3) are respectively mounted on a pair of the sliders (23).

6. The integrating sphere test fixture according to any one of claims 1-4, characterized in that, The connecting terminal (5) is horizontally arranged, and a pair of connection through holes (511) are respectively provided at the horizontal two ends of the connecting terminal (5). A pair of support columns (33) are spaced apart and mounted at one end of the sliding base (3) close to the mounting base (1). A fixing hole (331) matching the connection through hole (511) is provided at the top end of the support column (33), and the distance between a pair of the fixing holes (331) matches the distance between a pair of the connection through holes (511). The connecting terminal (5) is firmly mounted at one end of the sliding base (3) close to the mounting base (1) by a connecting member (9) passing through the corresponding connection through hole (511) and fixing hole (331).

7. The integrating sphere test fixture according to any one of claims 1-4, characterized in that, The substrate pressing block (4) includes: A pair of support blocks (41), spaced apart on the top surface of the sliding base (3). A U-shaped pressing strip (42), and both ends of the U-shaped pressing strip (42) are respectively connected to the tops of a pair of the support blocks (41).

8. The integrating sphere test fixture according to claim 7, wherein, The substrate pressing block (4) further includes: At least two flexible cushion blocks (421), spaced apart on the surface of the U-shaped pressing strip (42) close to the mounting base (1). When the target substrate (6) is connected to the connecting terminal (5), the surface of the target substrate (6) facing away from the mounting base (1) abuts against the flexible cushion blocks (421).

9. The integrating sphere test fixture according to claim 7, wherein It further includes: A push-pull handle (8), provided on the surface of the U-shaped pressing strip (42) away from the mounting base (1).

10. The integrating sphere test fixture according to any one of claims 1-4, characterized in that, The target substrate (6) is an aluminum substrate, and the target light source is an LED lamp bead disposed on one side of the target substrate (6) facing the light-transmitting through hole (11).

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