The significance of switching life test for high-temperature environment type appliances
In modern industry and daily life, the reliability and durability of various appliances are crucial. Especially in the high-temperature environment, the performance and safety of appliances are greatly tested. In order to ensure the normal operation of these appliances under extreme conditions, it is particularly important to carry out the switching life test of high-temperature environment-type appliances. This paper will discuss the significance and importance of this test.
High-temperature environment on the impact of appliances is multi-faceted. Firstly, high temperature may lead to material performance decline, such as plastic, rubber and other materials may be softened, deformed or even melted. Secondly, electronic components may accelerate aging at high temperatures, leading to circuit failures. In addition, auxiliary materials such as lubricants may fail at high temperatures, affecting the movement of mechanical components.
The reliability of switches, as a key component in appliances, is directly related to the normal operation of the entire equipment. The performance of switches in high temperature environments requires particular attention. The switch life test is primarily designed to assess the durability and reliability of switches under severe conditions such as high temperatures. Through this test, the life of the switch in actual use can be predicted, and potential design and material problems can be detected in time, thus guiding the improvement and optimisation of the product.
Test procedure and method:
The life test of high-temperature environment type apparatus switch usually includes the following steps:
(I) Environment simulation: Firstly, a high-temperature environment needs to be established, which is usually achieved by a special high-temperature test chamber.
(II) Test preparation: The switch to be tested is mounted on the test equipment to ensure that it is in the specified high temperature environment.
(III) Cyclic testing: The switch is subjected to continuous opening and closing operations to simulate the frequent operations in actual use.
(IV) Data recording: Record the performance changes of the switch during the test, such as opening and closing force, contact resistance, etc.
(V) Analysis and evaluation: Analyse the durability and reliability of the switch according to the data, and evaluate its service life under high temperature environment.
The significance of the test:
(I) Safety guarantee: The test ensures the reliability of the switch under high temperature environment, so as to guarantee the safety of users.
(II) Product optimisation: The test results can help manufacturers understand the shortcomings of their products and guide the subsequent product design and material selection.
(III) Performance evaluation: Provide users with visual data on the performance of products in extreme environments to enhance user confidence.
(IV) Standard setting: The test results help to formulate or improve relevant industry standards and testing standards.
Therefore, the high temperature environment type switch life testing machine is becoming more and more important in the industrial production of switches. This high-temperature environment type switch life machine (SH9402TG) according to IEC 61058.1/IEC 61058-1-1/IEC 61058-1-2/IEC 60669-1 and other relevant standards, can be used for the key switch boat switch, rotary switch It can be used for mechanical life test of key switches, boat-shaped switches, rotary switches and other switches, and with SH6300 series load cabinet, it can realise the electrified life test of switches. It is suitable for switch samples with rated current up to 20A.
Technical Parameters:
1, Working power supply: AC 220V/50HZ.
2, Temperature range: room temperature - 150 ° C, temperature fluctuation +1 ° C, average degree of +3 ° C;.
3, Test rate: 15-30 times / min, can be set and displayed on the touch screen.
4, On-off (disconnection) time: 0.5 ~ 99.9s can be set, precision: 0.1s; on-off cycle time: 1 ~ 99 seconds can be set.
5, Test on/off mode: with intelligent control system, it can control the load on/off individually.
6, Counter: 1 ~ 99999 times can be preset, the number of tests to reach the automatic shutdown.
7, The number of failures: 1-99 times can be set arbitrarily.
8, Drive mode: stepping motor (double motors for each station).
9, Workstation: 3, each workstation independent drive, each workstation independent counting (in kind and contract shall prevail).
10, Display and control mode: touch screen + PLC intelligent controller
11, Intelligent discrimination function (need to support the load phase): when the switch bonding, continuous connection or disconnection, to the set number of times (the number of abnormalities 1-99 times can be set arbitrarily) can be alarmed.
12, The test process of accidental power failure, accidental power failure data automatically save the function.
13. Intelligent judgement function: when the switch is bonded, there is a continuous connection or disconnection, and it can alarm when it reaches the set number of times.
14, With two different types of switch test mode.
14.1. Key switch test (warping)
14.1.1 Driving mode: stepping motor.
14.1.2 Pusher stroke: about 20mm.
With the continuous progress of technology, the method and technology of high temperature environment type appliance switch life test are also developing. Future tests may be more accurate and efficient, and better able to simulate a variety of complex use environments. In addition, with the application of new materials and processes, the high temperature resistance of appliances will be further improved.
High-temperature environment type appliance switching life test is an important means to ensure the reliable operation of the appliance in extreme environments. Through these tests, not only can protect the user's safety, but also promote the continuous optimisation of products and the improvement of industry standards. With the development of technology, this field of research will be more in-depth, for all kinds of high-temperature environment appliances to provide more solid protection.
