Test reasons of High and Low Temperature Thermal Shock Chamber for LED lights

High and Low Temperature Thermal Shock Chamber is the main equipment of modern reliability laboratory, which is used for cold and hot cycles of various materials and environmental stress tests of high and low temperature impact. The physical changes and material properties of the product after the thermal expansion and contraction environmental test are evaluated through the cold and hot impact test.

In terms of the quality of LED products, whether it is indoor or outdoor, the environmental climate of LED depends on the utilization rate of LED to a certain extent. The environmental test equipment of High and Low Temperature Thermal Shock Chamber can simulate the rapidly changing climate of high and low temperature in the natural environment. The application test of LED experimental products under natural environment simulation is undoubtedly an important means to improve the products.

Why do LED lighting lamps need to be tested in a High and Low Temperature Thermal Shock Chamber?
1. The plastic shell of LED lamps is prone to embrittlement damage under the impact of high and low temperature environmental capacity;
2. The LED lamp tube burns out when the temperature changes sharply;
3. LED circuit board chips are easy to short-circuit under high and low temperature impact environment.
During the high and low temperature impact test of qualified LED, after the high temperature and high pressure test of the lamp, the surface cannot be peeled off, discolored, cracked, deformed and other abnormal phenomena; After the impact test, the lamp shall be free of electric leakage, electrical abnormality and gas abnormality.

In the natural environment, temperature and humidity are two inseparable natural factors. Due to different geographical locations, the temperature and humidity effects in different regions are also different. High and Low Temperature Thermal Shock Chamber test is used to confirm the storage and transportation adaptability of products under temperature, humidity, climate and environmental conditions.

Timely inspection and maintenance of High and Low Temperature Thermal Shock Chamber：
The “cleaning” of the High and Low Temperature Thermal Shock Chamber should be in place to maintain the cleanliness of the equipment. The equipment should be kept on a flat ground and the installation site should be clean. If the equipment is tilted and needs to be adjusted in time, the cleaning of the equipment should be carried out periodically: clean the dust around the equipment, clean the dust on the components, for example, clean the distribution board regularly. If there is any dust accumulation in the equipment. It affects the electrical insulation and heat dissipation of components.

If the contact joints of components are loose, the equipment will be in a dangerous state, and the components may be burnt or catch fire. The dust can be removed from the switchboard through the dust suction device, which can be locked after the contact connector of the maintenance device, and can also be locked after the maintenance of components such as the condenser that need to be cleaned regularly. A vacuum cleaner can also be used to clean the dust on the radiator network of the condenser. Also, the equipment is cleaned regularly with a vacuum cleaner, and the shell can be wiped with a clean cotton cloth.

The “maintenance” of High and Low Temperature Thermal Shock Chamber is also important and must be completed. Equipment overhaul mainly refers to inspection and maintenance. Under normal conditions, it is necessary to check whether the power supply of the equipment has been turned off, whether the water supply system of the equipment has water leakage and blockage, and whether the water level control cup has water leakage and whether the water level is normal.

The dirt in the water system also needs to be cleaned in time to prevent the dirt from blocking the water system. The refrigeration system of the equipment should be checked regularly. Once a month, the copper pipe and all pipe joints and welding joints should be checked to see if there are hidden dangers in the equipment. If any problems are found during the inspection process, contact after-sales service personnel and let professional technicians deal with the maintenance problems in time.

High and Low Temperature Thermal Shock Chamber can be used in the temperature shock test and fast-changing temperature test in a wide range such as aviation, air space, electronic components and material research.

HLST-500D has two separate chambers: high temperature chamber and low temperature chamber.
HLST-500T has three separate chambers: high temperature chamber, low temperature chamber and test chamber.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator Guns, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

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Tags：HLST-500D