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Control method for coin-operated microwave oven

A control method and technology of microwave ovens, which can be applied to household stoves/stoves, household heating, lighting and heating equipment, etc., can solve problems such as inability to use, and achieve the effect of being convenient for heating and eating.

Inactive Publication Date: 2007-11-14
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And existing microwave oven as mentioned above is only suitable for family or office to use at will, can not be used by people by inserting coins as automatic vending machine

Method used

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  • Control method for coin-operated microwave oven

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Embodiment Construction

[0014] Next, the control method of the coin-operated microwave oven of the present invention will be described in detail in conjunction with the drawings and specific embodiments.

[0015] As shown in Figure 1, a coin-operated microwave oven is provided with a coin throwing opening 1 on the control panel of the microwave oven with various loads such as lighting, child lock, cooking, and barbecue, and a coin slot 1 is provided in the side wall of the microwave oven. The coin storage box 2 connected to the throwing port 1 is provided with a sensor for identifying coins at the coin throwing port 1, and the sensor is connected with the control chip. Among them, the control chip uses a model of TMP87CH470, and the child lock relay uses a model of 6920W5A012A.

[0016] As shown in Figure 2, the control method of the coin-operated microwave oven of the present invention is to have the following subroutines in the control flow of the microwave oven with various loads such as lighting,...

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Abstract

The method to control coin-microwave ovens, in the process of controlling the microwave ovens, there are subroutines as following: signal reception; conversion from analog signal to Electric signal; judging the value of the coins, that is to judge the coin is 10 cents, 50 cents or 100 cents; deciding how long it need to close the relay and open the lock according to different value of coins, 10 cents coins for one minute, 50 cents coins for 5 minutes, and 100 cents for 10 minutes; opening the relay and closing the lock to return to the first stage. It can control the time of opening lock through throwing coins into the mouth which is set on the panel and then it can heat food. To set the microwave ovens which have the functions above in various public places such as tourist attractions, trains, will be very convenient for travelers and also suitable for heating instant noodles, rice, and watery gruel. Make travelers or visitors can eat hot meals at any time.

Description

technical field [0001] The invention relates to a control method for a microwave oven. In particular, it relates to a control method for a coin-operated microwave oven which is conveniently used by travelers or passengers on trains. Background technique [0002] At present, microwave ovens have been popularized in every family. It is equipped with a high-voltage transformer and a magnetron, and uses the microwaves generated by the oscillation of the magnetron to heat the food inside the cooking chamber. After its high-voltage transformer generates a predetermined high voltage, the magnetron starts to start. The magnetron emits high-frequency (about 2450MHz) microwaves into the sealed space where the food is placed. Under the action of the radiated microwaves, the water molecules contained in the food will vibrate, and at the same time, the molecular friction generated by the vibration of the water molecules will heat / cook the food. As described above, a general microwave...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24C7/08
Inventor 沈成彬
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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