Light and heat aging test device for vehicle lamp material

Abstract

The utility model discloses a kind of light-heat aging test devices of car lamp material, including the test module of being electrically connected with power supply, the test module includes: radiator, and the circuit board is loaded on the radiator;The radiator is equipped with the LED module electrically connected with circuit board, and the radiator is further equipped with height adjustment component, and the height adjustment component is equipped with the sample board to be measured, and the sample board to be measured is adjusted its spacing with LED module by height adjustment component.The utility model car lamp material's test device, test component is integrated on radiator, forms test module, test module is convenient to carry, meets the use requirement under different scenes, can adjust the spacing of test sample board and LED module, meets different test demand.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, specifically to a testing device for automotive lamp materials, and more particularly to a photothermal aging testing device for automotive lamp materials. Background Technology

[0002] Polymer materials are widely used in automotive lighting systems due to their excellent properties. Some components are directly exposed to the high-intensity radiation of LED light sources and operate in the high-temperature engine compartment environment for extended periods, leading to a photothermal aging effect that causes yellowing, ablation, cracking, and other failures. Photothermal aging failure of materials severely impacts the function and appearance of automotive lights.

[0003] Currently, there is limited research on testing equipment for photothermal aging of automotive lighting materials. Among them, CN212780423U discloses a testing device for testing the photothermal aging resistance of optical materials. However, this testing device is difficult to set the LED type, number of LEDs, and distance between the sample and the LEDs, and cannot meet the increasing demand for LED types and numbers.

[0004] Currently, the types and numbers of LEDs used in automotive lights vary considerably. Different LED types and numbers have a significant impact on photothermal aging. Existing equipment requires customized circuit boards and lighting drivers, making it impossible to achieve rapid response. In addition, existing equipment is relatively bulky, with a large size and weight, making it unsuitable for portable use. Utility Model Content

[0005] The technical problem to be solved by this utility model is: In order to solve the technical problem that the testing device in the prior art is not portable, this utility model provides a testing device for photothermal aging of automotive lamp materials. The testing components are integrated on the heat sink to form a testing module. The testing module is easy to carry, meets the usage requirements in different scenarios, and can adjust the distance between the test sample and the LED module to meet different testing needs.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a photothermal aging test device for automotive lamp materials, including a test module electrically connected to a power supply, the test module including: a heat sink, a circuit board mounted on the heat sink; an LED module electrically connected to the circuit board on the heat sink, a height adjustment component on the heat sink, a test sample on the height adjustment component, and the distance between the test sample and the LED module is adjusted by the height adjustment component.

[0007] This utility model provides a photothermal aging testing device for automotive lighting materials. By adjusting the height of the shims, the distance between the test sample and the LED module can be precisely controlled, reducing the space occupied by the equipment, making it easy to carry and use, and meeting the testing requirements of different scenarios.

[0008] Furthermore, in order to fix the size of the test sample, the screws are located inside the edges on the left and right sides of the circuit board, and the screws pass through the circuit board and connect to the test substrate.

[0009] Furthermore, in order to control the spacing between the test sample and the LED, a height adjustment shim is added between the circuit board and the test sample, and the shim and the test sample are fixed by screws.

[0010] Furthermore, in order to test the temperature of the sample when the LED is lit, a thermocouple is placed on the part of the sample under test close to the LED module, and the thermocouple is electrically connected to a thermocouple thermometer.

[0011] Furthermore, to ensure the thermocouple is stable, it is fixed to the plastic template with high-temperature tape.

[0012] Furthermore, in order to allow for the replacement of the type and quantity of LEDs, the LED module is electrically and detachably connected to the circuit board.

[0013] Furthermore, in order to ensure that the LED module is in optimal working condition, the circuit board has a resistance adjustment knob, which is electrically connected to the LED module.

[0014] Furthermore, in order to power the test module, the connector of the circuit board is electrically connected to an external driver, which is electrically connected to a power supply.

[0015] Furthermore, in order to approximate the temperature inside the lamp cavity during actual use, the entire testing device is placed inside an oven to perform photothermal aging testing on the sample to be tested.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The photothermal aging test device for automotive lamp materials integrates the heat sink, circuit board and LED module into a test module, which reduces the size and makes it easy to carry. At the same time, it can accurately adjust the distance between the sample under test and the LED module, thereby improving the test accuracy.

[0018] 2. The photothermal aging test device for vehicle lamp materials of this utility model has a detachable LED module that allows for adjustment of the type and quantity of LEDs to meet various experimental needs.

[0019] 3. The photothermal aging test device for automotive lamp materials of this utility model can place the entire test component in an oven for experimentation, and the failure of the sample can be easily observed without stopping the machine during the test. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the structure of the photothermal aging test device for vehicle lamp materials according to this utility model;

[0022] Figure 2 This is a schematic diagram of the testing state of the photothermal aging testing device for automotive lamp materials.

[0023] In the diagram: 1. Heat sink, 2. Oven, 3. Circuit board, 4. LED module, 5. Sample to be tested, 6. Screw, 7. Height adjustment shim, 8. Thermocouple, 9. Thermocouple thermometer, 10. Resistance adjustment knob, 11. Power supply, 12. Driver. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1 and Figure 2 Therefore, a photothermal aging test device for automotive lighting materials includes a test module electrically connected to a power supply 11, and the test module includes a heat sink 1. The heat sink 1 is equipped with a circuit board 3, an LED module 4, and a height adjustment component.

[0028] Specifically, the heat sink 1 is equipped with an LED module 4 electrically connected to the circuit board 3. The heat sink 1 also has a height adjustment component, in which a test sample 5 is placed on an adjustment shim. The distance between the test sample 5 and the LED module 4 is adjusted by the adjustment shim. The LED module 4 is lit up, and the test sample 5 is illuminated by the LED module 4 in the test environment, thereby performing a photothermal aging test on the test sample 5. Since the LED module 4 operates at a very high temperature (far exceeding the temperature of the oven 2), the heat sink 1 can dissipate heat from both the circuit board 3 and the LED module 4 as a whole, preventing the operating temperature from becoming too high.

[0029] Preferably, the height adjustment assembly further includes a screw 6, which passes through a height adjustment shim 7. The height adjustment shim 7 abuts against the test sample 5 to adjust the height of the test sample 5. Since the distance between the LED module 4 and the test sample 5 varies under different experimental requirements, the height of the test sample 5 is adjusted by raising the shim, thereby achieving the distance adjustment between the LED module 4 and the test sample 5. Moreover, the size of the height adjustment shim can be reasonably selected as needed to improve the adjustment accuracy between the two.

[0030] In this embodiment, screw 6 is located inside the edges on both sides of the circuit board 3, and screw 6 passes through the circuit board 3 and connects to the heat sink 1. According to the distance requirements between the LED module 4 and the test sample 5, first place the shim and the test sample 5, and after the height is adjusted to the correct position, tighten screw 6.

[0031] Specifically, a thermocouple 8 is connected to the part of the test sample 5 near the LED module 4, and the thermocouple 8 is connected to a thermocouple thermometer 9. The thermocouple 8 is attached to the plastic sample with high-temperature tape. The thermocouple 8 can detect the temperature of the test sample 5 when it is lit, ensuring that the test sample 5 is within a reasonable test temperature range, which facilitates temperature fine-tuning and monitoring, and enables accurate temperature measurement.

[0032] Specifically, LED module 4 is electrically and detachably connected to circuit board 3. LED module 4 can be replaced as needed, and the number and type of LED module 4 can be adjusted appropriately. LED module 4 and circuit board 3 use a conventional connection method, which will not be described in detail here.

[0033] Specifically, circuit board 3 has a resistance adjustment knob 10, which is electrically connected to LED module 4. The interface of circuit board 3 is electrically connected to an external driver 12, which is in turn electrically connected to a power supply 11. When adjusting LED module 4 or the number of LEDs, the resistance needs to be adjusted appropriately; therefore, a rotary discrete resistance adjuster is provided to achieve a specific LED power. The power supply 11 and driver 12 control the current and voltage to illuminate LED module 4.

[0034] Of course, in other embodiments, screws 6 are located on the left and right sides of circuit board 3, and screws 6 are connected to heat sink 1.

[0035] The photothermal aging test device for automotive lighting materials can be placed entirely inside the oven 2 to test the sample 5. The condition of the sample 5 can be easily observed through the observation window of the oven, avoiding the need to stop the machine for inspection.

[0036] In summary, the testing device for automotive lighting materials of this utility model integrates the testing components onto the heat sink to form a testing module. The testing module is easy to carry, meets the usage requirements in different scenarios, and can adjust the distance between the test sample and the LED module to meet different testing needs.

[0037] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. A photothermal aging testing device for automotive lamp materials, characterized in that, The test module includes a test module electrically connected to a power supply (11), the test module comprising: A radiator (1) on which a circuit board (3) is mounted; The heat sink (1) is provided with an LED module (4) electrically connected to the circuit board (3). The heat sink (1) is also provided with a height adjustment component. The height adjustment component is provided with a test sample (5). The test sample (5) is adjusted to adjust its distance from the LED module (4) by the height adjustment component.

2. The photothermal aging testing device for automotive lamp materials according to claim 1, characterized in that, The height adjustment component includes a screw (6) that fixes a height adjustment shim (7) and the height adjustment shim (7) abuts against the test sample (5) to adjust the height of the test sample (5).

3. The photothermal aging testing device for automotive lamp materials according to claim 2, characterized in that, The screw (6) is located inside the edges on the left and right sides of the circuit board (3), and the screw (6) passes through the circuit board (3) and connects to the heat sink (1).

4. The photothermal aging testing device for automotive lamp materials according to claim 3, characterized in that, A thermocouple (8) is connected to the part of the test sample (5) near the LED module (4), and the thermocouple (8) is connected to a thermocouple thermometer (9).

5. The photothermal aging testing device for automotive lamp materials according to claim 4, characterized in that, The thermocouple (8) is attached to the plastic template with high-temperature tape.

6. The photothermal aging testing device for automotive lamp materials according to claim 1, characterized in that, The LED module (4) is electrically and detachably connected to the circuit board (3).

7. The photothermal aging testing device for automotive lamp materials according to claim 6, characterized in that, The circuit board (3) has a resistance adjustment knob (10), which is electrically connected to the LED module (4).

8. The photothermal aging testing device for automotive lamp materials according to claim 7, characterized in that, The interface of the circuit board (3) is electrically connected to an external driver (12), and the driver (12) is electrically connected to a power supply (11).

9. The photothermal aging testing device for automotive lamp materials according to claim 1, characterized in that, The entire testing device is placed inside the oven (2) to perform photothermal aging testing on the sample (5).

Images