What is LED constant heat and humidity testing machine?
In the R&D and production process of LED products, environmental reliability testing is one of the key links to ensure product quality. As an important environmental testing equipment, LED constant heat and humidity testing machine is widely used in the LED industry to simulate high temperature and high humidity environments and evaluate the performance and durability of LED products under harsh conditions. This article will introduce in detail the definition, working principle, application scenarios and comparison of popular models in the market of LED constant heat and humidity testing machine.
1. Definition of LED constant heat and humidity testing machine
The LED constant heat and humidity testing machine is a testing equipment specially used to simulate a constant high temperature and high humidity environment. By controlling the temperature and humidity parameters, it can conduct long-term environmental adaptability testing of LED products. The purpose is to verify the stability, lifespan and reliability of LEDs under high temperature and high humidity conditions, and to ensure that the products can withstand harsh environments in actual use.
2. Working principle
The LED constant heat and humidity testing machine achieves environmental simulation through the following technologies:
| Technology module | Function description |
|---|---|
| Temperature control system | Electric heating or compressor refrigeration technology is used to achieve precise temperature control (usually range: 20℃~150℃). |
| Humidity control system | Adjust the humidity through a steam generator or humidifier (range: 20%RH~98%RH). |
| circulatory system | Forced air circulation ensures uniform distribution of temperature and humidity in the test chamber. |
| Security protection | It has over-temperature protection, leakage protection and other functions to ensure test safety. |
3. Application scenarios
LED constant heat and humidity testing machine is mainly used in the following fields:
| Application areas | Test purpose |
|---|---|
| LED lamps | Test the sealing and circuit stability of lamps in humid and high-temperature environments. |
| LED display | Evaluate the color consistency and brightness degradation of display modules under hot and humid conditions. |
| LED chip | Verify the moisture-proof performance and corrosion resistance of chip packaging materials. |
| Automotive LED | Simulate the car's internal and external environment and test the reliability of car lights in extreme climates. |
4. Comparison of popular models in the market (search data in the past 10 days)
According to the search popularity of the entire network in the past 10 days, the following is a comparison of the LED constant humidity and heat testing machine models and their parameters that users are more concerned about:
| Model | temperature range | Humidity range | Volume (L) | brand |
|---|---|---|---|---|
| TH-225 | -40℃~150℃ | 20%RH~98%RH | 225 | ESPEC |
| GDJS-500B | 10℃~85℃ | 30%RH~95%RH | 500 | Guangwu Institute |
| HSX-150 | 20℃~150℃ | 20%RH~98%RH | 150 | Hongzhan Technology |
| KSON-TH-80 | -20℃~150℃ | 10%RH~98%RH | 80 | Kosai Instruments |
5. Conclusion
The LED constant heat and humidity testing machine is an indispensable equipment in the reliability testing of LED products. Its precise temperature and humidity control and wide range of application scenarios provide important technical support for the industry. With the continuous development of LED technology, testing machines will evolve towards higher precision, intelligence and multi-function in the future to further meet market demand.
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