Automobile LED lamp test fixture

By designing a testing fixture for automotive LED headlights with a matching positioning groove and a limiting structure, the problem of inaccurate positioning in existing testing methods has been solved, enabling rapid and stable electrical performance testing.

CN223985844UActive Publication Date: 2026-03-10SHENZHEN LITONG ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In existing automotive LED headlight testing methods, the universal fixture has a single positioning method, which can easily lead to misalignment between the test elastic probe and the contact point. Operators need to repeatedly adjust the headlight angle, which reduces the test effect.

Method used

A test fixture for automotive LED headlights was designed, comprising a base and a positioning component. The positioning component has a positioning groove and a limiting structure that match the shape of the headlight to ensure accurate positioning of the headlight. It also achieves quick clamping through a protective rod and a pressing component to avoid skewing. The fixture is combined with an elastic probe for electrical performance testing.

Benefits of technology

It enables rapid and accurate alignment of LED vehicle lights, eliminates poor test contact caused by clamping misalignment, and improves test stability and operational safety.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223985844U_ABST
    Figure CN223985844U_ABST
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Abstract

The utility model discloses an automobile LED automobile lamp test fixture, which comprises a base and a positioning assembly, the positioning assembly is arranged at the top of the base, the positioning assembly comprises a positioning plate, the top of the positioning plate is provided with a plurality of positioning grooves matched with the shape of an LED automobile lamp to be tested, the front and rear sides of the positioning grooves are provided with limiting structures, and the limiting structures are connected with the positioning plate. The left side and the right side of the positioning groove are provided with taking grooves, and the depth of the taking grooves is larger than that of the positioning groove. By arranging the positioning groove and the limiting structure matched with the shape of the to-be-tested LED vehicle lamp, accurate positioning and anti-misoperation of the to-be-tested LED vehicle lamp are achieved, the design enables the LED vehicle lamp to be rapidly and accurately aligned, the problem of poor testing contact caused by clamping deflection is effectively solved, meanwhile, deviation of the mounting position is avoided through physical limiting, and the testing accuracy is improved. And the test stability and the operation safety are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile LED car light test, specifically is a kind of automobile LED car light test fixture. BACKGROUND

[0002] As the core component of modern vehicle lighting system, automobile LED car light usually contains LED light-emitting chip, driving circuit module and heat dissipation structure and other multifunctional units. LED car light needs to ensure stable light efficiency output and electrical safety performance under complex working conditions, and its manufacturing process must go through strict conduction test, optical parameter detection and durability verification.

[0003] The existing test method is mostly realized by general fixture and artificial positioning to realize the temporary fixing of LED car light, and the positioning structure is single, which can easily lead to misplacement risk between test elastic probe and contact point, and the operator needs to repeatedly adjust the angle of LED car light to complete clamping, which reduces the use effect. UTILITY MODEL CONTENT

[0004] In order to overcome the shortcomings of the prior art, the utility model embodiment provides a kind of automobile LED car light test fixture, and the technical problems to be solved are: the existing test method is mostly realized by general fixture and artificial positioning to realize the temporary fixing of LED car light, and the positioning structure is single, which can easily lead to misplacement risk between test elastic probe and contact point, and the operator needs to repeatedly adjust the angle of LED car light to complete clamping, which reduces the use effect.

[0005] To solve the above technical problems, the utility model provides the following technical scheme: a kind of automobile LED car light test fixture, including base and positioning assembly, the positioning assembly is installed at the top of base, the positioning assembly includes positioning plate, the top of the positioning plate is equipped with multiple positioning slots suitable for the shape of the LED car light to be measured, the front and back sides of the positioning slot are equipped with limiting structure, for limiting the position of the LED car light to be measured.

[0006] Further, the left and right sides of the positioning slot are provided with taking grooves, and the groove depth of the taking groove is greater than the groove depth of the positioning slot.

[0007] Further, the top of the positioning plate is fixedly connected with a plurality of protective rods in equidistant array, and the top of the protective rod is provided in a round head.

[0008] Further, the top of the base is fixedly connected with a bracket, the side surface of the bracket is fixedly connected with a pressing assembly, the bottom end of the pressing assembly is fixedly connected with a test assembly, and the test assembly is used for electrical performance test on LED car light.

[0009] Further, the pressing assembly comprises a mounting plate fixedly connected to the side of the support, a pressure rod hingedly connected to the top of the side of the mounting plate, a connecting plate hingedly connected to the bent part of the pressure rod, a movable rod hingedly connected to the end of the connecting plate away from the pressure rod, and a limiting sleeve fixedly connected to the bottom of the side of the mounting plate, and the bottom end of the movable rod penetrates through the limiting sleeve and is fixedly connected to the testing assembly.

[0010] Further, the end of the pressure rod away from the mounting plate is sleeved with a handle.

[0011] Further, the testing assembly comprises a lifting block, the top of the lifting block is fixedly connected to the bottom end of the movable rod, the bottom of the lifting block is fixedly connected with a fixed plate, the bottom of the fixed plate is provided with a plurality of elastic probes corresponding to the contacts on the LED car lamp to be tested.

[0012] Further, the four corners of the bottom of the fixed plate are fixedly connected with positioning rods, the four corners of the top of the positioning plate are fixedly connected with positioning sleeves, and the positioning rods are located directly above the positioning sleeves.

[0013] Further, the two sides of the bottom of the fixed plate are fixedly connected with sliding rods, and the two sides of the top of the positioning plate are provided with sliding sleeves corresponding to the sliding rods.

[0014] Further, the side of the support is fixedly connected with guide rods in a symmetrical manner, the two sides of the fixed plate are fixedly connected with linear bearings, and the linear bearings are sleeved on the outer surfaces of the guide rods.

[0015] By means of the above technical scheme, the automobile LED car lamp testing jig provided by the utility model has at least the following beneficial effects:

[0016] According to the utility model, the positioning groove and the limiting structure matched with the shape of the LED car lamp to be tested are arranged, the accurate positioning and the anti-misoperation of the LED car lamp to be tested are realized, the LED car lamp can be quickly and accurately aligned, the problem of poor testing contact caused by clamping deviation is effectively eliminated, the deviation of the installation position is avoided through physical limiting, and the testing stability and the operation safety are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the utility model and form part of the present application:

[0018] Figure 1 The drawings described herein are used to provide a further understanding of the utility model and form part of the present application:

[0019] Figure 2 The drawings described herein are used to provide a further understanding of the utility model and form part of the present application:

[0020] Figure 3This is a schematic diagram of the positioning component structure of this utility model;

[0021] Figure 4 In this utility model Figure 1 Enlarged view of a portion at point A;

[0022] Figure 5 This is a schematic diagram of the test component structure of this utility model;

[0023] Figure 6 This is a bottom view of the test component structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the LED vehicle light structure of this utility model.

[0025] Reference numerals: 10. Base; 11. Support plate; 20. Positioning component; 21. Positioning plate; 22. Positioning groove; 23. Retrieval groove; 24. Limiting structure; 25. Protective rod; 26. Sliding sleeve; 27. Positioning sleeve; 30. Bracket; 31. Guide rod; 40. Pressing component; 41. Mounting plate; 42. Pressure rod; 43. Connecting plate; 44. Movable rod; 45. Limiting sleeve; 46. Handlebar; 50. Test component; 51. Lifting block; 52. Fixing plate; 53. Elastic probe; 54. Positioning rod; 55. Sliding rod; 56. Linear bearing; 60. LED vehicle light. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 7 As shown, a testing fixture for automotive LED headlights is provided, including a base 10 and a positioning component 20. The positioning component 20 is mounted on the top of the base 10 and includes a positioning plate 21. The top of the positioning plate 21 has multiple positioning grooves 22 adapted to the shape of the LED headlight 60 under test. The inner wall of the positioning groove 22 has protrusions that correspond to the inner grooves on the left and right sides of the LED headlight 60. Limiting structures 24 are provided on both the front and rear sides of the positioning groove 22. The limiting structures 24 include symmetrically distributed limiting rods that engage with the inner grooves on the front and rear sides of the LED headlight 60 to limit the position of the LED headlight 60 under test. By setting positioning grooves 22 and limiting structures 24 that match the shape of the LED headlight 60 under test, precise positioning and prevention of misoperation of the LED headlight 60 under test are achieved. This design enables the LED headlight 60 to be quickly and accurately aligned, effectively eliminating the problem of poor test contact caused by clamping misalignment. At the same time, physical limiting avoids deviation in installation position, improving test stability and operational safety.

[0028] like Figure 3 As shown, there are retrieval grooves 23 on the left and right sides of the positioning groove 22. The edges of the retrieval grooves 23 are rounded. The depth of the retrieval grooves 23 is greater than that of the positioning groove 22. The operator can directly pick up the edge of the LED vehicle light 60 with his thumb and forefinger without the need for tools.

[0029] like Figure 3 As shown, multiple protective rods 25 are fixedly connected to the top of the positioning plate 21 in an equidistant array. The top of the protective rods 25 is rounded, and the rounded top of the protective rods 25 is equipped with a detachable silicone buffer sleeve to provide flexible contact protection when the test component 50 is pressed down, preventing rigid impact from causing the elastic probe 53 to deviate or causing damage to the LED vehicle light 60.

[0030] like Figure 1 As shown, a bracket 30 is fixedly connected to the top of the base 10, a pressing component 40 is fixedly connected to the side of the bracket 30, and a test component 50 is fixedly connected to the bottom of the pressing component 40. The test component 50 is used to perform electrical performance tests on the LED vehicle light 60.

[0031] like Figure 1 and Figure 4 As shown, the pressing assembly 40 includes a mounting plate 41, which is fixedly connected to the side of the bracket 30. A pressure rod 42 is hinged to the top of the side of the mounting plate 41, and a connecting plate 43 is hinged to the bend of the pressure rod 42. A movable rod 44 is hinged to the end of the connecting plate 43 away from the pressure rod 42. A limit sleeve 45 is fixedly connected to the bottom of the side of the mounting plate 41. The bottom end of the movable rod 44 passes through the limit sleeve 45 and is fixedly connected to the test assembly 50. When the pressure rod 42 is pressed down, the movable rod 44 is moved downward through the connecting plate 43. The outer surface of the movable rod 44 slides inside the limit sleeve 45, causing the test assembly 50 to move vertically downward, which facilitates the electrical performance testing of the LED vehicle light 60.

[0032] like Figure 4 As shown, a handle 46 is fitted onto the end of the pressure bar 42 away from the mounting plate 41. The surface of the handle 46 is provided with an anti-slip flange to enhance grip stability and prevent slippage caused by sweaty hands.

[0033] like Figure 1 , Figure 5 and Figure 6As shown, the test assembly 50 includes a lifting block 51, the top of which is fixedly connected to the bottom of the movable rod 44, and a fixing plate 52 is fixedly connected to the bottom of the lifting block 51. The bottom of the fixing plate 52 is provided with multiple elastic probes 53. The elastic probes 53 are used to correspond to the contacts on the LED vehicle light 60 under test. When the test assembly 50 moves downward, the elastic probes 53 come into contact with the contacts on the LED vehicle light 60 under test, thereby performing electrical performance testing on the LED vehicle light 60.

[0034] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, positioning rods 54 are fixedly connected to the four corners of the bottom of the fixing plate 52, and positioning sleeves 27 are fixedly connected to the four corners of the top of the positioning plate 21. The positioning rods 54 are located directly above the positioning sleeves 27. When the test component 50 moves downward, the positioning rods 54 are inserted into the interior of the positioning sleeves 27, which can limit the downward range of the test component 50 and make the elastic probe 53 fully contact the contact point on the LED vehicle light 60 under test, preventing excessive downward movement that could damage the elastic probe 53 or the LED vehicle light 60.

[0035] like Figure 1 , Figure 3 , Figure 5 and Figure 6 As shown, sliding rods 55 are fixedly connected to both sides of the bottom of the fixed plate 52, and sliding sleeves 26 are provided on both sides of the top of the positioning plate 21. The sliding rods 55 and the sliding sleeves 26 correspond to each other. When the test component 50 moves downward, the sliding rods 55 are inserted into the sliding sleeves 26 and slide within the sliding sleeves 26, ensuring the smooth and stable downward pressing process of the test component 50.

[0036] like Figure 1 , Figure 5 and Figure 6 As shown, guide rods 31 are symmetrically fixedly connected to the side of the bracket 30, and linear bearings 56 are fixedly connected to both sides of the fixing plate 52. The linear bearings 56 are sleeved on the outer surface of the guide rods 31 and slide on the outer surface of the guide rods 31 to ensure the stability of the test assembly 50 moving up and down.

[0037] When in use, the LED vehicle light 60 to be tested is placed into the positioning groove 22 on the positioning plate 21 in sequence. The physical limitation of the limiting structure 24 avoids the deviation of the installation position of the LED vehicle light 60.

[0038] During testing, grip the grip 46 and press down on the pressure rod 42. The connecting plate 43 drives the movable rod 44 to move downward. The outer surface of the movable rod 44 slides within the limiting sleeve 45, causing the test component 50 to move vertically downward. At this time, the linear bearing 56 slides on the outer surface of the guide rod 31, the slide rod 55 is inserted into the slide sleeve 26 and slides within the slide sleeve 26, and the positioning rod 54 is inserted into the positioning sleeve 27. This limits the downward range of the test component 50 and ensures that the elastic probe 53 makes full contact with the contacts on the LED vehicle light 60 under test. The elastic probe 53 is used to perform electrical performance testing on the LED vehicle light 60.

Claims

1. An automobile LED vehicle lamp test fixture, characterized in that, Include: Base (10); Positioning assembly (20) is installed on the top of the base (10), the positioning assembly (20) includes a positioning plate (21), the top of the positioning plate (21) is provided with a plurality of positioning slots (22) matched with the shape of the LED car light (60) to be tested, the front and back sides of the positioning slot (22) are provided with limiting structures (24) for limiting the position of the LED car light (60) to be tested.

2. The automotive LED vehicle lamp testing fixture of claim 1, wherein: The left and right sides of the positioning slot (22) are provided with a taking slot (23), and the slot depth of the taking slot (23) is greater than the slot depth of the positioning slot (22).

3. The automotive LED vehicle lamp testing fixture of claim 1, wherein: The top of the positioning plate (21) is fixedly connected with a plurality of protection rods (25) in equidistant array, and the top of the protection rod (25) is provided in a round head.

4. The automotive LED vehicle lamp testing fixture of claim 1, wherein: The top of the base (10) is fixedly connected with a support (30), the side surface of the support (30) is fixedly connected with a pressing assembly (40), the bottom end of the pressing assembly (40) is fixedly connected with a test assembly (50), and the test assembly (50) is used for electrical performance test of the LED car light.

5. The automotive LED vehicle lamp testing fixture of claim 4, wherein: The pressing assembly (40) includes a mounting plate (41) fixedly connected to the side surface of the support (30), a pressure rod (42) hinged to the top of the side surface of the mounting plate (41), a connecting plate (43) hinged to the bending part of the pressure rod (42), an activity rod (44) hinged to the end away from the pressure rod (42) of the connecting plate (43), and a limiting sleeve (45) fixedly connected to the bottom of the side surface of the mounting plate (41). The bottom end of the activity rod (44) penetrates through the limiting sleeve (45) and is fixedly connected to the test assembly (50).

6. The automotive LED vehicle lamp testing fixture of claim 5, wherein: The end away from the mounting plate (41) of the pressure rod (42) is sleeved with a handle sleeve (46).

7. The automotive LED vehicle lamp testing fixture of claim 5, wherein: The test assembly (50) includes a lifting block (51), the top of the lifting block (51) is fixedly connected with the bottom end of the activity rod (44), the bottom of the lifting block (51) is fixedly connected with a fixed plate (52), the bottom of the fixed plate (52) is provided with a plurality of elastic probes (53), and the elastic probes (53) are used for corresponding contact points on the LED car light (60) to be tested.

8. The automotive LED vehicle lamp testing fixture of claim 7, wherein: The bottom of the fixed plate (52) is fixedly connected with a positioning rod (54) at the four corners, the top of the positioning plate (21) is fixedly connected with a positioning sleeve (27) at the four corners, and the positioning rod (54) is located directly above the positioning sleeve (27).

9. The automotive LED vehicle lamp testing fixture of claim 8, wherein: The bottom of the fixed plate (52) is fixedly connected with a sliding rod (55) on both sides, and the top of the positioning plate (21) is provided with a sliding sleeve (26) on both sides. The sliding rod (55) corresponds to the sliding sleeve (26).

10. The automotive LED vehicle lamp testing fixture of claim 9, wherein: The side surface of the support (30) is fixedly connected with a guide rod (31) in symmetry, the two sides of the fixed plate (52) are fixedly connected with a linear bearing (56), and the linear bearing (56) is sleeved on the outer surface of the guide rod (31).