Working principle of Pentium electric rice fort
1, electric rice is cooking at the bottom of an aluminum pot by using a heating plate. A heating wire is hidden in the heating plate. At this time, the heating wire is controlled by an automatic switch.
2. There is a round hole in the center of the heating plate, and there is a temperature-sensitive soft magnetic in the hole, which is pressed upward against the bottom of the pot by a spring. This is a pure ferrite. It can be attracted by a permanent magnet at 100℃ or below. But when it rises to 103℃, it loses its magnetism and is no longer attracted by permanent magnets.
3. When the switch button is pressed, the switch crossbar pushes the magnet upward against the temperature-sensitive soft magnetic. At this time, the heating wire is connected and heating begins. When the rice in the pot boils, the water in the pot gradually decreases. When the water begins to evaporate, the temperature in the pot rises from 100℃. When the temperature rises to 103℃, the temperature-sensitive soft magnetic is not attracted by the magnet, and the lever of the switch drops due to the elasticity of the spring and its own gravity, so that the contact points are separated by pressure, and the heating wire is cut off. At the same time, connect another insulation circuit to keep the temperature of rice at about 70℃.
Maintenance skills of Pentium rice cooker
Fault 1: cooking rice
Causes and maintenance:
The fault may be that the normally closed contacts of the insulation switch are sintered and stuck together. Although the rice has been cooked and the temperature limiter has jumped, the insulation switch continues to energize the heating tube, and the rice is sour. At this time, the contact can be separated with a knife, and then the contact surface can be cleaned with fine sandpaper.
Fault 2: Plug in the power plug and the power fuse will blow immediately.
Causes and maintenance:
1, short circuit caused by water or rice soup in the power socket of the rice cooker. In this case, you can dry the water in the socket and continue to use it;
2. Due to long-term use, the surface of the power socket or plug of the rice cooker is aging and causes short circuit. In this case, the carbonized layer on its surface can be ground off with fine sandpaper and cleaned with alcohol. You can continue to use it
Fault 3: Cooking raw rice
Causes and maintenance:
This fault is generally caused by the weakening of the permanent magnetic ring in the temperature limiter. At this time, the temperature limiter of the rice cooker can be disassembled to check whether the magnetic ring is broken and how attractive it is. If the permanent magnetic ring is broken, the temperature limiter of the same model must be replaced; If the suction force decreases, adjust the temperature adjusting screw on the temperature limiter, and adjust 1/4 turns each time, and try to cook rice once.
Fault 4: Can't cook.
Causes and maintenance:
1, the source wire is open. Check the power conductor with the ohmmeter;
2. The current limiting resistor is blown. At this time, the resistance can be checked by the ohmmeter. If the resistor is blown, it must be replaced by the current limiting resistor of the same model, and it cannot be directly replaced by a wire;
3. The heating tube is burnt out. A rice cooker without limited current resistance works for a long time and burns out the heating tube. At this time, check the heating tube with the ohmmeter. If the circuit is broken, it must be replaced together with the heating plate.
Fault 5: You can't keep warm after cooking.
Causes and maintenance:
This fault may be that the normally closed contact surface of the heat preservation switch is dirty or ablated, which makes the contact resistance of the contact too large, resulting in the contact being closed and the circuit being blocked, the heating tube not heating, and the rice cooker not keeping warm. At this time, the contact surface can be cleaned with fine sandpaper and plated with a layer of tin. If the insulation is still not maintained, the insulation switch can be replaced.
Editor's summary: The working principle of Pentium electric rice cooker and the maintenance skills of Pentium rice cooker are introduced here, hoping to help everyone.
How about Pentium rice cooker?
Pentium rice cooker, the most famous of which is the earthen cooker series and the Golden Triangle series. Pentium rice cooker adopts European pure design concept, exquisite technology, various styles suitable for all kinds of kitchen decoration styles, EU environmental protection standards, and unique national certification level 2, which not only leads in energy efficiency, but also uses environmentally-friendly and safe materials. As the perfect crystallization of science and technology and traditional cookers, Pentium multifunctional rice cooker has more than ten cooking functions, unique features and a variety of taste food choices, such as cakes and noodles, which adds a lot of fun to the family kitchen. The original patent of Golden Triangle of Aerobic Breathing is called the new era of windowing kitchen in the industry, with three basic functions: numerical control, precision forging and energy gathering. Household heating site, original two-way heating, innovative gold aerobic breathing program, original breathing boiling, using two-way illusory heating, as if to make a spa for rice, super energy gathering, not only heat storage, but also achieve environmental protection secondary energy efficiency, making rice sweet and delicious. The original six-stage functional cooking program, Pentium team studied the cooking process of rice and the nutrition release law of rice grains. Through six-stage functional cooking, the rice was locked in nutrition, soft and delicious.
Pentium rice cooker reservation function
Pentium rice cooker, with its 24-hour reservation function, can actually make an appointment effectively within 24 hours. For example, you have to eat at 8 o'clock the next morning, but you don't think of it so early. Then the rice will be scoured at 1 1 in the evening, make an appointment for 8 hours, and press the porridge button. Then the rice will be steamed at 7:00 the next day, and the heat will be automatically turned off when it is cooked. You can eat hot rice when you get up at 8: 00. Press what you need to cook first. For example, if you need to cook porridge, you should press porridge first, then press make an appointment twice. Generally, a few hours and minutes will appear on the display screen, and then press+or-to adjust. Press start again. The key of reservation function is that the time of reservation is longer than that of the selected function. Otherwise, it will start heating immediately.