Precautions when purchasing with a touch switch
Release time:
2023-03-30
The quality of touch switches directly affects the use of the product, so it is important to understand before purchasing. Before purchasing, pay attention to its solderability, protection, conductivity and other electrical properties, and whether the height of its service life and hand feel tolerance are within a reasonable range. External factors are also important. Although we are not associated with appearance, the appearance of a product can affect its quality. To reduce resistance, we will silver plate the pins. A good product will use a silver plating process on the needle, and the process is also controlled. The silver plating thickness should be above 0.3um to effectively prevent pin oxidation.
The quality of touch switches directly affects the use of the product, so it is important to understand before purchasing. Before purchasing, pay attention to its solderability, protection, conductivity and other electrical properties, and whether the height of its service life and hand feel tolerance are within a reasonable range. External factors are also important. Although we are not associated with appearance, the appearance of a product can affect its quality. To reduce resistance, we will silver plate the pins. A good product will use a silver plating process on the needle, and the process is also controlled. The silver plating thickness should be above 0.3um to effectively prevent pin oxidation.
A good product also needs to be used well in order to effectively exert its effectiveness. Confirm production conditions before using the touch switch. Different welding methods should be used for different pins and high-temperature resistant materials. Due to different conditions, the methods of pins are also different, and pins are divided into plug-in and patch types. After production is completed, the performance of the switch should be tested to see if it is turned on or off normally, if there are any changes in the feel, if the product resistance is normal, if the product appearance is normal, and if the switch pins are in the welding position. Develop reasonable production SOPs for unused production processes.
The effect of metal shrapnel on touch switches:
The light touch switch evolved from the disc, which was an early used thin film switch. Single structure and fast production speed. But the product has a low lifespan and single performance, which cannot meet market demand. Due to the increasing requirements for product performance, simple pan plates have gradually been phased out by the market. Then we touch the switch, and its working principle is the same. It looks like Iron Man.
At the beginning of using the touch switch, consumers only had requirements for the quality and performance of the product. With the improvement of market products and consumption levels, the quality and performance of products can no longer meet the needs of consumers. Anyone familiar with this switch knows that the switch has its feeling, which is the power of the switch. These switches are dynamic parameters: touch, button, toggle, and micro. Industry standards: 30-100GF micro motion strength, 250-400GF button strength, 200-400GF toggle strength, 50-400GF light touch. The quality of the feel is directly related to the strength. The positive and negative tolerance range of strength is relatively small, and the hand feeling is better. The positive and negative tolerance range of domestically produced shrapnel is relatively large, with a value of plus or minus 50; The range of positive and negative tolerance for Korean produced shrapnel is relatively moderate, at plus or minus 30; The imported shrapnel from Japan is also one of the best in the world, and the tolerance range for the use of Japanese ternary shrapnel is very small, with a value of plus or minus 10. Conclusion: The higher the accuracy of the shrapnel, the better the tactile sensation of the switch.
Pressing the light touch switch button at the working point can make the switch turn on. When the button is released, the switch turns off. Its internal structure relies on the force of metal shrapnel to achieve turn on and off. The working principle of metal shrapnel is abbreviated as shrapnel, and there are two types of materials used for shrapnel. There are two types of materials for shrapnel: phosphor copper and non embroidered steel, silver plating and gold plating. The gold plating and silver plating processes are both above 0.3um, and the electroplating process directly affects the electrical performance and oxidation resistance of the product.
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