Because of the advantage of non-contact large-scale temperature measurement, infrared thermal imaging technology is more and more frequently used in various fields of automotive product development and production, such as automotive power system, brake system, automotive electronics, automotive interior R & D testing, production process control and so on.
Let's take a look at the application of infrared thermal technology in the R & D and production fields of automobile parts.
The automobile lamp business department of a large electronic group conducts temperature test on the research and development of automobile headlamp
Heating state of halogen headlamp wick
Heating status of LED headlamp
At present, halogen light source and LED light source are the two main designs of automobile lamps, but both of them are limited by heating: halogen light source has large heating capacity, which is easy to deform the hood of automobile headlamp; while LED lamp has small heating capacity, but the temperature is not accurately controlled, which will affect the color of light source. For example, white light will change into light of other colors at different temperatures. Therefore, the temperature distribution of different light sources is tested on site, so as to adjust the design of the lamp, especially the heat dissipation design, to meet the quality requirements and lifetime of the lamp.
With the rapid development of vehicle electronic technology, the proportion of electrical and electronic parts in vehicles is increasing, and its quality directly affects the safety of vehicles. In R & D and production, thermal imager can be used to detect the change of high temperature point of electronic devices, which simplifies the detection process, improves the work efficiency and greatly improves the quality of products.
Temperature distribution detection of circuit board of automotive electronic components
When the engine works, it will produce a lot of heat. The temperature performance of each link is directly related to the working status of the engine. Through the detection and analysis of the engine performance temperature, engineers can understand the engine performance and status, and improve its performance and work maintenance.
Heat dissipation function test of engine shell
The catalytic exhaust purifier can only work in a certain temperature range: when the vehicle is cold started, the catalytic exhaust purifier can hardly reduce the pollutants in the exhaust gas; if the purifier is exposed to a very high temperature, the service life of the purifier may be shortened, or the purification effect may be lost. Therefore, the catalytic exhaust purifier can be placed at a suitable position away from the engine by using the thermal imager to ensure the normal use of the purifier.
Function test of catalytic exhaust gas purifier
According to statistics, 60% ～ 70% of automobile parts are produced by stamping process. This is a very important step in automobile manufacturing. Therefore, stamping technology has an important impact on the product quality, production efficiency and production cost of automobile.
Central control board formed by stamping
After the steel plate is formed, the infrared thermal imager can be used to detect whether the surface temperature of the steel plate is uniform, so as to determine whether there are bubbles, layers or other problems on the surface of the steel plate. The infrared thermal imaging technology can very effectively detect the stamping quality, and make a steel plate into the expected ideal shape of the car plate shell.
Fuel nozzle in combustion
The infrared thermal imager is used to evaluate the combustion efficiency of the fuel nozzle. During the test, the infrared thermal imager, the fuel nozzle and all parts of the site are consistent. Through the calculation of the software, the average energy of the flame radiation in the infrared thermal image can be obtained, which can be used to evaluate the efficiency of the fuel nozzle.
Using infrared thermal imager can directly display the working state of the whole tire and reflect the working performance of the tire. When designing and producing tires, tire design engineers can choose different materials according to the pressure and friction they need to bear, so as to improve the performance of tires.
The heat detection of tire running for a long time
If the temperature of the brake pad is too high, its efficiency will be reduced. In case of emergency braking, the temperature of brake disc and pad can reach 1000 ℃ due to strong friction. If the friction material is too hard, it will accelerate the wear of the brake disc, and the brake lining may crack or fall off during emergency braking, eventually leading to brake failure. Using the thermal imager, engineers can fully know the temperature change trend of the whole brake pad and brake system. According to the temperature change trend, they can analyze the braking condition and wear resistance of the brake pad.
Heating detection of brake pad in operation
The uneven distribution of heating sources may cause uneven seat heating, and the temperature rise may be too fast or too slow, which will bring discomfort to the human body. The infrared thermal imager can directly and conveniently observe the uniform distribution of temperature and the trend of temperature rise when the heating source is working. The continuous shooting function of the infrared thermal imager can be used to analyze the electric heating wires on the thermal images at different times, improve the design of heating mode, and make users safer and more comfortable.
Heating part of electric heating seat
Infrared thermal imaging technology can be applied in many aspects in the field of automobile research and production. Infrared thermal imaging technology has become an indispensable backbone in industrial manufacturing, helping the healthy development of automobile industry and technological innovation and upgrading.
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