I have been exploring the domestic inverter industry for 20 years. From the time when inverters were mainly promoted as energy-saving, to today, inverters are a must-have accessory for electronic control in the machinery industry. The methods used by everyone to sell them have changed the deep-seated anatomy. The selling point of the product is to explain the essential issues of the product to customers. At present, the salesperson in the industry talks most about why our product is good. To put it simply, it is no longer marketable.

 Around 2000, domestically produced inverters mainly relied on a certain university or a few people, who took advantage of the opportunity of industry-university exchanges to bring back two sets of inverter solutions from foreign technical exchange venues, and deduced the schematic diagram and selected components at home. For PCB processing (manual welding), if there is no source code program, you can only enter an unmodifiable application package, and you accidentally start the machine. In addition to excitement, facing such advanced high-tech products, my heart aroused the desire to make money, so I found the first batch of high-tech entrepreneurs in the industry to start a business together.

 Shenzhen is a good place. As long as there are opportunities, there will be people who dare to do it. As a result, frequency converters have developed rapidly in Shenzhen, a city that was only relatively developed at the time but absolutely open. Puzhuan, Anbangxin, etc. are also slightly famous, and Jialing has been divided into several companies. This time, Senlan and Huifeng plus Kangwo shouted that I was number one every day. A large number of outstanding young people who go out to work and pursue their dreams in life, under the cover of anti-static clothing, chant various quality control slogans, and install 300 1.5-kilowatt inverters every day on long benches that are described as assembly lines. Enjoying all kinds of glory in the tournament.

 However, the failure rate of domestic inverters at this time was extremely high, about 20%. What was the main reason? Because inverters were a very new thing in China at that time, and they were almost just a set of experimental products that were quickly used as As a tool for making money, there is no relevant industrial chain in China to support the purchase of high-quality and guaranteed materials. There is no quality control process at all. All we can do is shout slogans to strengthen workers' attention.