A heating energy control method of microwave oven

专利摘要:
The present invention relates to a heating energy control method of a microwave oven for adjusting heating energy output in a microwave oven. According to the present invention, the microwave and the heater heat are output as the heating energy output in the furnace. At this time, the heater heat continues to be driven until it reaches the time / temperature set by the user, and when the heater time reaches the set time and temperature, the heater drives on / off. On the other hand, the magnetron is connected to a plurality of relays, by controlling the power supply applied to the magnetron as the relay alternately controls on / off switching, to control the microwave output in the interior. According to the present invention, it is possible to cook in a short time, thereby maximizing user satisfaction.
公开号:KR20040061687A
申请号:KR1020020087974
申请日:2002-12-31
公开日:2004-07-07
发明作者:김규영
申请人:엘지전자 주식회사；
IPC主号:

专利说明:

A heating energy control method of microwave oven
[9] The present invention relates to a microwave oven, and more particularly to a heating energy control method of the microwave oven for controlling the output of the heating energy output in the interior of the refrigerator.
[10] Hereinafter, the heating energy control method of the microwave oven according to the prior art will be described in detail.
[11] 1 is a state diagram showing a heating energy control process of a microwave oven according to the prior art.
[12] As shown in the related art, microwave waves are output on / off at a predetermined time interval in a refrigerator. As described above, the on / off output process is performed until the cooking end time.
[13] On the other hand, the heater heat outputs heating energy in the refrigerator in the on state as the user starts cooking selected by the user. When the food in the refrigerator reaches the preset set temperature according to the cooking selected by the user, the on / off switching is controlled at a predetermined time interval thereafter and the heating energy is output in the kitchen. And the on / off switching control as described above, the process of outputting the heating energy in the interior, the cooking proceeds to the end time.
[14] The combination mode of the convection model is capable of simultaneously outputting the microwaves and the heat of the heater in the refrigerator, and is output at predetermined time intervals as shown in FIG. That is, the power level adjusting method in which the microwave is output in the combination mode of the convection model is configured to periodically repeat the on / off time using a relay device as a time control method.
[15] In this case, when the microwave and the heater are driven, the heating energy is not output in the refrigerator in the off-switching state, and as a result, there is a problem in that the cooking heating time for outputting the heating energy in the refrigerator to heat the food is extended. . As a result, the juice of the food flows out due to prolonged heating, and the taste of the food is reduced, or the shape of the food is deformed.
[16] Accordingly, an object of the present invention is to provide a heating energy control method of a microwave oven that controls the heating energy of microwaves in a refrigerator continuously.
[1] 1 is a state diagram showing a heating energy control process of the microwave oven according to the prior art.
[2] 2 is a control circuit diagram for controlling the heating energy of the microwave oven according to the present invention.
[3] 3 is a state diagram showing a heating energy control process of the microwave oven according to the present invention.
[4] Explanation of symbols on the main parts of the drawings
[5] 10: first relay 20: second relay
[6] 30: high voltage transformer 40: magnetron
[7] 50: power input terminal C: high voltage capacitor
[8] D1: diode
[17] The heating energy control method of the microwave oven according to the present invention for achieving the above object comprises the steps of: inputting an automatic cooking signal according to the combination mode for simultaneously outputting the heating energy of the heater and the magnetron; On-off switching control of the power supplied to the heater at predetermined time intervals; And controlling the output of the magnetron to be continuously output within the rated current range of the product including the use current of the heater, wherein the control of the magnetron includes the rated current of the product including the use current of the heater. It is characterized in that the maximum allowable output value within the range and the value below it are controlled alternately at a predetermined period.
[18] In the present invention, the on-off control of the heater is characterized in that it is performed after the time when the heating energy of the heater is output in the refrigerator reaches a predetermined time or a predetermined temperature.
[19] Looking at the heating energy control method of the microwave oven according to the invention as follows.
[20] 2 is a control circuit diagram for controlling the heating energy of the microwave oven according to the present invention, Figure 3 is a state diagram showing a heating energy control process of the microwave oven according to the present invention.
[21] First, the connection relationship of the control circuit diagram shown in FIG. 2 will be described.
[22] The high voltage transformer 30 is provided, and the first relay 10 and the second relay 20 which are configured at the first stage of the high voltage transformer 30 to control whether the power is applied are configured. In addition, the fourth terminal of the first coil 30a configured at the second end of the high voltage transformer 30 is connected to one side of the magnetron 40. And the sixth terminal of the second coil 30b configured in the second stage of the high voltage transformer 30 is connected to the high voltage capacitor (C). The resistor R is connected to both ends of the high voltage capacitor C. The other side of the high voltage capacitor C is connected to the other side of the magnetron 40. The magnetron 40 is grounded.
[23] Meanwhile, terminal 5 of the first coil 30a configured at the second end of the high voltage transformer 30 is connected to the anode of the first diode D1, and the cathode of the first diode D1 is grounded. And the seventh terminal of the second coil 30b configured for the second interruption of the high voltage transformer 30 is grounded.
[24] In this case, the on / off switching driving of the first relay 10 and the second relay 20 is performed through the control of a microcontroller (not shown).
[25] Referring to the operation control process of the control circuit, the power is applied and the magnetron 40 and the heater (not shown) starts driving according to the cooking specification selected by the user. That is, the microcontroller (not shown) drives the magnetron 40 to detect whether the set temperature or time according to the cooking specification input by the user is reached. When the set temperature or time according to the cooking specifications is reached, the on / off switching control of the heater (not shown) is then performed at predetermined time intervals, and as shown in FIG. To control the output on / off. And the on-off output of the heater heat is advanced until the cooking time ends.
[26] On the other hand, when the power is applied and the power is delivered to the first cut-off of the high voltage transformer 30, it is applied to the first relay 10 and the second relay 20 connected to the first stage of the high voltage transformer 30. According to the applied power, when the first relay 10 is in an on switching state, power is applied to the second stage of the high voltage transformer 30, and when the first relay 10 is in the off switching state, power is not applied to the second stage of the high voltage transformer 30. . In addition, when the second relay 20 is in an on switching state, power is applied to the second stage of the high voltage transformer 30, and in the off switching state, power is not applied to the second stage of the high voltage transformer 30.
[27] Therefore, when the first relay 10 is switched on and the second relay 20 is switched off, the secondary cut-off power of the high voltage transformer 30 is applied to supply the power to the magnetron 40. In this way, the power is supplied to the magnetron 40 while the first relay 10 is switched on and the second relay 20 is switched off, and the heating energy of the microwave is output to the inside of the refrigerator. In the off switching control, the power supply of the magnetron 40 is switched on / off at predetermined time intervals so that the application of the power is cut off for a predetermined time and the internal output of the microwave is cut off.
[28] As the first relay 10 controls the on / off switching of the power applied to the magnetron 40 as described above, the microwaves outputted in the interior of the interior of the interior of the interior of the refrigerator are periodically displayed in the cycle shown in the first relay 10 of FIG. 3. Is output.
[29] In addition, when the first relay 10 is switched off and the second relay 20 is switched on and driven, the secondary cut-off power of the high voltage transformer 30 is applied to supply power to the magnetron 40. In this way, the power is supplied to the magnetron 40 with the first relay 10 switched off and the second relay 20 switched on to output the heating energy of the microwave to the inside of the refrigerator, and the magnetron for a predetermined time thereafter. The power applied to the 40 is cut off, and the power supply of the magnetron 40 is switched on / off at predetermined time intervals.
[30] As the second relay 20 controls the on / off switching of the power applied to the magnetron as described above, the microwaves output in the refrigerator are output in the interior of the refrigerator at a cycle as shown in the second relay 20 of FIG. 3. .
[31] Thus, the microwaves are continuously output as shown in FIG. 3 in accordance with the on-switching operation of the first relay 10 and the second relay 20. That is, in the combi mode, the heater is switched on and off at predetermined time intervals and outputs heating energy in the refrigerator. At the same time, microwaves are output at different heating energy levels through the magnetron 40 by the power applied to the magnetron 40 according to the driving of the first relay 10 and the second relay 20.
[32] Therefore, in contrast to the conventional technology of controlling the microwave to simply output the heating energy of a certain size in the on / off state in the refrigerator, according to the present invention, different heating energy sizes are continuously output to the cooking end time at predetermined time intervals. I'm in control.
[33] At this time, the reference to control the magnitude of the heating energy output in the interior is based on the reference current value.
[34] As described above, in the present invention, it is a basic technical idea to control the heating energy output in the refrigerator to be continuously output. In particular, in order to control the microwaves output in the refrigerator to be continuously output, the output energy of the microwave is controlled by switching on / off switching the power supply alternately with the power applied to the magnetron.
[35] The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.
[36] Therefore, the following effects can be expected due to the heating energy control method of the microwave oven according to the present invention.
[37] According to the present invention, in the combination mode according to the convection model in which the heater and the microwave are simultaneously output in the refrigerator, the microwaves are continuously output in the refrigerator, thereby increasing the amount of heating energy supplied to the refrigerator in the same time. Accordingly, it is possible to perform the cooking process in a short time. As a result, the heating state of the food is improved by heating the food in a short time, and the food can be prevented from being deformed.

权利要求:
Claims (2)
[1" claim-type="Currently amended] Inputting an automatic cooking signal according to a combination mode for simultaneously outputting heating energy of the heater and the magnetron;
On-off switching control of the power supplied to the heater at predetermined time intervals;
And controlling the output of the magnetron to be continuously output within the rated current range of the product including the use current of the heater,
The control of the magnetron is a heating energy control method of a microwave oven, characterized in that the maximum allowable output value and less than the allowable value within the rated current range of the product including the use current of the heater alternately control at a predetermined cycle.
[2" claim-type="Currently amended] The method of claim 1,
The on-off control of the heater, the heating energy control method of the microwave oven, characterized in that performed after the time when the heating energy of the heater output in the interior reaches a predetermined time or a predetermined temperature.

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同族专利:

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公开号 | 公开日

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KR100942573B1|2010-02-16|

引用文献:

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公开号 | 申请日 | 公开日 | 申请人 | 专利标题

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法律状态:
2002-12-31|Application filed by 엘지전자 주식회사

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2002-12-31|Priority to KR1020020087974A

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2004-07-07|Publication of KR20040061687A

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2010-02-16|Application granted

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2010-02-16|Publication of KR100942573B1

优先权:

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申请号 | 申请日 | 专利标题

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KR1020020087974A|KR100942573B1|2002-12-31|2002-12-31|A heating energy control method of microwave oven|