Li Zhongxin was very troubled by the fact that at this time in 1984, rice cookers had not appeared in large numbers in China. To cook, you had to use a stew pot or a large pot to steam the rice. Sometimes the steamed rice was hard and sometimes soft, which was really frustrating.

He felt upset.

Li Zhongxin remembered clearly in later generations that the first rice cooker his family bought was probably a Triangle brand rice cooker. When this thing started to be available, it was already in the early 1990s.

Electric rice cookers and electric frying spoons are two things that people all over the country need. How come no one has come up with them at this time and let such small appliances enter thousands of households?

Although Li Zhongxin’s home and Zhongxin Fish House both use rice cookers, those rice cookers were sent to Li Zhongxin from Masako Mitsui.

Although Zhongxin Company Headquarters has been using stew pots to steam rice before, Li Zhongxin really didn't notice this problem before.

After all, it was quite a good thing to have enough food to eat during the period from 1982 to 1983.

It was during the great grain harvest in 1983 that everyone in the country had enough to eat and could buy bargain-priced grain anytime and anywhere.

When Zhongxin Company first opened its canteen, most of the food was brought to the company from the countryside.

Li Zhongxin knows very well that the principle of a rice cooker is very simple. An ordinary rice cooker mainly consists of a heating plate, a temperature limiter, a heat preservation switch, a lever switch, a current limiting resistor, an indicator light, a socket, etc.

The heating plate is the main heating element of the rice cooker. It is an aluminum alloy disc with an electric heating tube embedded in it. The inner pot is placed on it, and you can see it when you remove the inner pot.

The temperature limiter is also called a magnet. It is equipped with a permanent magnetic ring and a spring inside, which can be pressed. It is located in the center of the heating plate. When cooking, when the cooking switch is pressed, it is driven by the attraction of the magnet.

The lever switch keeps the power contacts on.

When cooking rice, the temperature of the bottom of the pot continues to rise, and the suction force of the permanent magnetic ring weakens with the increase in temperature. When the water in the inner pot is evaporated and the temperature of the bottom of the pot reaches 103±2C, the suction force of the magnetic ring weakens.

Less than the elastic force of the spring on it, the temperature limiter is pushed down by the spring, driving the lever switch and cutting off the power supply.

Thermal switch, also known as thermostat. It is composed of a spring leaf, a pair of normally closed contacts, a pair of normally open contacts, and a bimetallic piece.

When cooking, the temperature inside the pot rises. Due to the different thermal expansion rates of the two metal sheets that constitute the bimetallic sheet, the bimetallic sheet bends upward.

When the temperature reaches above 80 degrees Celsius, the spring leaf drives the normally open and normally closed contacts to switch, thus cutting off the power supply to the heating tube and stopping heating. When the temperature in the pot drops below 80 degrees Celsius, the spring leaf drives the normally open and normally closed contacts to switch.

At this time, the bimetallic piece gradually cools down and recovers, the normally open and normally closed contacts switch again, and the power of the heating tube is turned on for heating. By repeating this, the heat preservation effect is achieved.

The switch is entirely mechanical and has a normally open contact.

When cooking, press this switch to connect the power to the heating tube, and at the same time supply power to the heating indicator light to light up. When the rice is ready, the temperature limiter pops down, driving the lever switch to disconnect the contacts. After that, the heating tube

Only controlled by the heat preservation switch.

Li Zhongxin remembers very clearly that when he was in the 1990s, the rice cookers and electric frying spoons at home often had problems like this.

And these are all minor problems. If you send them to the home appliance repair department, it will just replace the small parts inside, which will cost more than ten yuan. At that time, if there were problems with things like rice cookers and electric frying spoons, you would usually fix them yourself.

It can be repaired at home.

Because he could save money by doing repairs at home, Li Zhongxin spent a lot of time playing with these things at that time, and he knew everything about the structure of rice cookers, electric frying spoons, etc.

An electric wok is mainly composed of a pot body, an electric heating element, a temperature control element and a base. The body of the earliest electric wok was made of cast iron. According to the saying at the time, cast iron pots were the most useful and could also replenish iron.

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The electric heating elements of electric woks mostly use coil-shaped electric heating elements, which are installed in the center of the bottom of the pot, so that the heat can be concentrated.

Generally, electric woks use a bimetal thermostat to adjust the temperature. The bimetal thermostat is mainly composed of a bimetal piece, dynamic and static contacts, temperature adjustment screws, temperature adjustment shaft, mounting bracket, etc.

It is installed at the bottom of the electric heating plate, and its temperature-adjusting shaft extends out of the control panel and is connected to the thermostat knob. When the thermostat knob is adjusted to set the temperature at a certain value, the temperature in the pot can be automatically adjusted when the power is turned on.

within the specified temperature range.

Li Zhongxin knew the principles of these things, but if he wanted to produce these things and convert his principles into productivity, it would take a lot of things.

But! Li Zhongxin still decided to research and produce these civilian commodities. He felt that these things were a good thing that could change the lives of thousands of households.

Li Zhongxin remembers very clearly that later generations of Chinese people like to buy rice cookers and electric woks from Japan and South Korea, because the rice cookers and electric woks from these two countries are of good quality and advanced. He feels that in this life, he only needs to let people start.

Starting to develop these two things, then the highest quality rice cookers and electric woks in the future must be made by China Zhongxin.

Li Zhongxin vaguely remembered that the earliest rice cookers in China should be the Triangle brand and the Hemisphere brand. These two rice cookers should have already begun to be put into production.

In the 1980s, communications were underdeveloped, and the transmission of information was even less developed. Li Zhongxin thought about it again and again, and decided to use Zhongxin Company to register a company that produces small household appliances, mainly selling small household appliances such as rice cookers, electric kettles, and electric woks.

Because it was the 1980s, we should first develop the early main things. After these things were completed, we would then form several professional R&D teams and let these R&D teams continue to engage in R&D.

Many times, the most important thing for a team's R&D is not how strong its scientific research capabilities are, but whether the scientific research goals and directions are correct. With the correct scientific research direction and goals, it will be much easier to develop more advanced things.

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Li Zhongxin is a reborn person and is very familiar with the development of small household appliances. According to his idea, he should first develop the small household appliances business, make it bigger and stronger first, and then expand and develop.

He provides the direction and goals of scientific research, and the specific operations require professional personnel.

Li Zhongxin used injection molding for the fan blades of the electric fan, and Li Zhongxin naturally thought of this technology for the shell of the rice cooker.

In the 1980s, even the casings of foreign rice cookers were made of metal. The cost ratio of using metal to make the casing of a rice cooker was quite high.

And if Li Zhongxin's injection molding method is used to create the outer shell of the rice cooker, then a considerable part of the cost of the rice cooker will be saved.

After the small appliance factory is established, the injection molded shell of the assembly line will be able to make a leap in the production speed of rice cookers.

The production technology of injection molding is not difficult, especially since Li Zhongxin had made injection molded fan blades before.

Things like fans that require high precision can be produced quickly, so plastic casings for small appliances such as rice cookers can be developed more easily.

And what’s more! This time Li Zhongxin also had a new idea. This time, the injection mold for the rice cooker will be produced domestically.

After Zhongxin Company, a mold factory for this kind of injection mold, is established, if it develops other injection mold technologies in the future, it will be conducted directly in its own factory. This is convenient on the one hand, and safety and confidentiality on the other.

Once you have any good technology, you must apply for a patent. When the time comes, you can sell the patent for a lot of money.

Li Zhongxin also thought that after small household appliances are produced, through continuous innovation, they will gradually become more advanced household appliances. These household appliances will also become a major selling point of Zhongxin Company when it goes global in the future.

In later generations, foreign small household appliances made a lot of money from Chinese people. He wanted to turn this thing around and use advanced concepts and the quality of small household appliances to make money from foreigners.
Chapter completed!