KR100671830B1 - Installation for controlling night light of microwave oven - Google Patents

Abstract

In the present invention, disclosed is a microwave night light control device and method that can reduce the power consumption for the night light of the microwave.

According to the present invention, a solar cell panel is mounted as a front panel of a microwave oven and receives a solar light source or an indoor light source and converts it into electrical energy; A lamp driver configured to receive power supplied from the solar cell panel and charge the battery at a constant voltage, and supply and control the charging voltage to a night light in response to a lamp control signal; And when the key signal of the microwave oven for manual control of night lights is input, generates a lamp control signal for controlling the lamp driving unit on and off in response to the key signal, the key signal of the microwave oven for automatic control of night lights Is input, the microcomputer generates a lamp control signal for automatically turning on and off the lamp driver based on the amount of light detected from the solar cell panel.

Therefore, according to the present invention, as it is used as a night light of a microwave oven, it not only prevents unnecessary power waste of the microwave oven, but also implements a night light function used as a microwave oven as a simple circuit, thereby reducing the cost of the product. Save.

Microwave, Mood Lamp, Night Light, Manual, Automatic, Solar Cell, Battery

Description

INSTALLATION FOR CONTROLLING NIGHT LIGHT OF MICROWAVE OVEN}

1 is a configuration diagram for explaining the night light control of the conventional microwave oven.

Figure 2 is a perspective view for explaining the appearance of a conventional microwave oven.

3 is a perspective view for explaining a microwave oven according to the present invention.

Figure 4 is a block diagram for explaining the night light control of the microwave oven according to the present invention.

5 is a flowchart for explaining the main operation of the present invention.

<Explanation of symbols for main drawings>

310: input unit 320: solar cell panel

330: display unit 340: lamp unit

410: battery 420: lamp drive unit

430: microcomputer 440: clock power supply

The present invention relates to a microwave oven, and more particularly, a night light used as a night light of a microwave oven by mounting a solar cell as a front panel of a microwave oven and using power provided from the solar cell. The present invention relates to a nighttime lamp control apparatus and method of a microwave oven capable of minimizing power consumption.

In general, in the living room, kitchen or restaurant hall of the home where the microwave is located, the general lighting is turned off in the middle of the night when human activity is reduced, and only the night lighting which is lower in brightness than the general lighting is turned on in case of sudden activities at night. In order to turn on or off the night light, the user needs to turn on or turn off the switch by directly moving to a switch for controlling the night light. In addition, when the user forgets the state in which the night light is turned on, the night light is turned on for a long time, which causes unnecessary power consumption.

In order to prevent this, as shown in FIG. 1, the conventional microwave oven includes an input unit 110, a microcomputer 120, a display unit 130, a driving unit 140, and a lamp unit 150. . The input unit 110 is composed of input keys for setting and inputting various conditions such as cooking selection, cooking time, operation start and end of the microwave. In addition, the input key includes a lamp mode setting key for selecting or setting the on / off time of the lamp.

The microcomputer 120 includes a programmable microcomputer having a RAM capable of temporarily storing data and a ROM capable of storing a program. The microcomputer 120 displays an operation command input from an input unit on the display unit 130, and stores a program for operating the driving unit 140 and the lamp unit 150 according to the operation command.

Therefore, when the lamp mode is selected, the microcomputer 120 is programmed to automatically set the on / off time of the lamp. In addition, the user selects the lamp mode and adjusts the lamp on / off time by setting the lamp on / off time using a timer. In addition to the on / off time of the lamp, it includes a function to adjust the brightness of the lamp.

The display 130 displays an input operation command and a state in which the operation is in progress so that the user can see it. The driving unit 140 performs a cooking operation of a microwave oven, including a component for cooking food such as a magnetron, a lamp in an electric room, a cooling fan, and a driving motor.

The lamp unit 150 is formed on one side of the front surface of the microwave oven, and the lamp unit 150 is turned on or off in response to a control signal of the microcomputer to perform a lamp function. Therefore, the lamp unit 150 is set by the user directly on / off time, or operate according to the programmed on / off time.

Meanwhile, as shown in FIG. 2, the conventional microwave oven is provided with a cooking chamber 122 as the main body 121 of the microwave oven, and inside the cooking chamber, food is introduced through a door, and a rotating dish is placed therein. 123 is formed. The rotating plate 123 is rotated by the drive motor of the bottom of the cooking chamber, and the microwaves emitted into the cooking chamber are incident on the food evenly.

In addition, an input unit 110 for setting and inputting various conditions such as cooking selection, cooking time, operation start and end of the microwave, and a display unit 120 for displaying the operation of the microwave are provided on one side of the front of the microwave. Is formed. The input unit 110 includes a lamp mode setting key 114 for automatically or manually setting a lamp operation timing in addition to cooking selection keys for selecting a normal cooking mode. In addition, a lamp unit that performs an illumination function is formed on an upper portion of the display unit, and the lamp unit turns on and off according to the lamp mode setting key 114.

However, the lamp unit applied to the above-mentioned conventional microwave oven uses the power provided from the power cord of the microwave oven as the standby power, thereby performing a flashing of the lamp unit based on user setting, and thus, a waste of power is generated. On the other hand, according to the design of the microwave oven is used as the power consumption when the lamp unit is turned on by using the rechargeable battery, this is not only takes a long time to charge the rechargeable battery, but also can not rule out the elements of power waste generated therefrom to be.

The present invention was created to solve such a problem, an object of the present invention is to mount a solar cell (Solar Cell) to the front panel of the microwave oven, to utilize the power charged from the solar cell as a night light, that is, a night light By providing a microwave night light control device that can minimize the power consumption of the microwave oven.

Still another object of the present invention is to install a solar cell as a front panel of a microwave oven, and by using a predetermined battery in parallel, the nighttime of the microwave oven which can prolong the life of the battery using the output power of the solar cell. To provide a lighting control device.

The nighttime lamp control apparatus of the microwave oven according to the first aspect of the present invention for achieving the above object, in the device for controlling the nightlights of the microwave oven, it is mounted as a front panel of the microwave oven, the solar light source or A solar cell panel for receiving an indoor light source and converting the light into electric energy; A lamp driver configured to receive power supplied from the solar cell panel and charge the battery at a constant voltage, and supply and control the charge voltage to a night light in response to a lamp control signal; And when the key signal of the microwave oven for manual control of the night light is input, generates the lamp control signal for controlling the lamp driver to be turned off in response to the key signal, and automatically controls the night light. When the key signal of the microwave oven is input, the microcomputer generates the lamp control signal for automatically turning on and off the lamp driver based on the amount of light detected from the solar cell panel.

According to a preferred embodiment of the present invention, the lamp driving unit further includes a battery connected in parallel with the solar panel, the battery and the solar panel are each diode in the forward direction to exclude the interference to the mutual output power It is characterized by being connected.

Night light control method of the microwave oven according to the second aspect of the present invention for achieving the above object, in the night light control method of the microwave oven for operating the night light control device of the microwave oven according to claim 1 Determining whether a key signal for manually controlling the night light is input, recognizing it as a manual mode when the key signal is input, and recognizing it as an automatic mode when the key signal is not input; b) it is determined whether a lighting key for turning on the night lamp is input according to the manual mode; and when the lighting key is input, the lamp driving unit is operated to determine the voltage charged from the solar cell panel. Supplying night lights; c) disabling the lamp driving unit when the lighting key is not input in step b) to cut off power connected to the night light; d) detecting a voltage supplied from the solar cell panel according to the automatic mode of step a) to determine whether a preset reference value is exceeded; e) when the reference value is not exceeded, assuming that it is night and enabling the lamp driving unit to supply a voltage charged from the solar cell panel to the night lamp; And f) when the reference value is exceeded, assuming that it is daytime, and disabling the lamp driver to cut off power connected to the night light.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is a perspective view showing a microwave oven according to the present invention. As shown, the cooking chamber 370 is provided as the main body 350 of the microwave oven, the food is introduced through the door inside the cooking chamber, and a rotating plate for seating the food in the center of the cooking chamber 370 ( 380 is formed. In addition, the display unit 330 for displaying the operation of the microwave oven is formed. A lamp unit 340 is formed on an upper side of the display unit 330 or a rear surface of the display panel to provide night light. A cooking side, cooking time, operation start and end of a microwave oven are formed on one side of the microwave oven. Various conditions such as an input unit 310 for instructing automatic or manual control for turning on / off the lamp unit 340, and mounted between the display unit 330 and the input unit 310. The solar cell panel 320 for supplying power to the 340 is mounted.

The solar cell panel 320 is an element for converting electrical energy by receiving a solar light source or a fluorescent light of a room, and a solar cell may be used. In addition, the lamp unit 340 may be used as a light emitting diode or a high brightness light emitting diode. The input unit 310 may set a separate lighting time and a lighting time in performing the control of the lamp of the lamp unit 340, and the user may directly control any of the lights.

Figure 4 is a block diagram for explaining a night light control device of the microwave oven according to the present invention.

As shown, the lamp driving unit 420 for receiving the power supplied from the solar panel 320 and the battery 410 to charge it with a constant voltage, and to turn off the lamp unit 340 in response to a lamp control signal When the manual control of the night light is selected from the input unit 310, the lamp driving signal is provided to the lamp driver 420, or the automatic control of the night light is selected from the input unit 310. The microcomputer 430 generates a lamp control signal for automatically controlling the lamp driver 420 based on the amount of light detected from the battery panel 320.

The lamp driving unit 420 is connected to the lamp unit 340 to control power for turning on and off the lamp unit 340, and the lamp unit 340 protects a plurality of light emitting diodes or high brightness light emitting diodes and the like. It includes a resistance to. The lamp unit 340 has a switching circuit for receiving the charging power provided from the solar panel 320 and the battery 410 according to the lamp control signal. In addition, in consideration of the low power consumption tendency of the lamp unit 340, an AND gate or a transistor circuit may be used. If necessary, when the light emitting diode (LED) of the lamp unit 340 is used with high power consumption of high brightness, the AND gate applied to the lamp unit 340 is preferably a high-power TTL element, the lamp unit 340 If a low transistor circuit is applied, the Darlington circuit will be suitable.

The solar panel 320 and the battery 410 are connected in parallel to each other, and the respective diodes D1 and D2 are connected in a forward direction to eliminate mutual interference with each output power. The battery 410 may be a mercury battery.

In addition, the microcomputer 430 is connected to the clock power supply unit 440 for driving the clock of the microwave oven, and used as a power source for driving the clock operation of the microwave oven and a night light control program.

5 is a flowchart for explaining the main operation of the present invention.

As shown, in step S501 the user controls whether to manually control or automatically control the night light of the microwave oven through the input unit 310 of the microwave oven. Accordingly, the microcomputer 430 receives the night light lighting instruction information provided by the input unit 310.

The night light on and off indication information is to receive the key signal of the night light on the key button provided to the input unit 310, as in step S503, the microcomputer 430 recognizes the operation of the night light on the key button night Recognize it in manual mode for lighting. The microcomputer 430 notifies the user of the manual mode switching for the night light through the display unit 330.

The microcomputer 430 outputs a lamp control signal for turning on the lamp in step S505 in response to the key signal of the night lamp lighting key button. The lamp control signal is provided to the lamp driver 420, and the lamp driver 420 supplies the charging voltage charged from the solar panel 320 or the battery 410 to the lamp unit 340. The lamp unit 340 turns on the light emitting diode or the high luminance light emitting diode by using the charging voltage provided from the lamp driver 420.

Afterwards, when the user operates the night light off key, the microcomputer 430 recognizes the command to turn off the night light through step S509, and outputs a lamp control signal to turn off the lamp. ) The lamp driver 420 cuts off the charging power provided to the lamp unit 430. Therefore, the night light of the microwave oven is turned off.

On the other hand, when the manual button for manually controlling the night light at step S501 is not operated, the microcomputer 430 enters the step S507 to enter the automatic mode for automatic control of night light of the microwave oven. Here, the microcomputer 430 measures the amount of voltage or current for the applied power provided from the solar cell panel 320.

That is, the microcomputer 430 measures a light source irradiated to the solar cell panel 320, and controls the lights of night lights according to the amount of light. Accordingly, the microcomputer 430 includes an AD converter (not shown), and the AD converter converts the voltage output from the solar cell panel 320 into a digital signal. The microcomputer 430 determines whether the reference value is greater than or equal to the reference value based on the digital signal currently input through the AD converter, and determines whether it is night or day based on the reference value.

If the microcomputer 430 determines that the output voltage currently detected from the solar cell panel 320 is greater than or equal to the reference value, the microcomputer 430 feeds back to step S509 and the lamp driver 420. Generate a ramp control signal for disabling &quot; The lamp driver 420 stores the charging voltage provided from the solar cell panel 320 through a predetermined charging circuit according to the lamp control signal.

In addition, when it is determined by the microcomputer 430 that the output voltage currently detected by the solar cell panel 320 is equal to or less than a reference value and determined to be night, the microcomputer 430 feeds back to the step S505 and the lamp driving unit ( Generate a ramp control signal to enable 420. Accordingly, the lamp driver 420 supplies the charging voltage charged from the solar cell panel 320 or the battery voltage supplied from the battery 410 to the lamp unit 340 in response to the lamp control signal. As a result, the night light of the microwave is turned on to perform a night light function at night.

As described above, the nighttime lamp control apparatus and method of the microwave oven according to the present invention by mounting a solar cell panel of a predetermined size to the front panel of the microwave oven, by charging the output voltage supplied from the solar panel, As it is used as a night light of the, not only to prevent unnecessary waste of power of the microwave, it is also effective to reduce the unit cost of the product by implementing a night light (Night Light) function used as a microwave oven as a simple circuit.

While the invention has been shown and described with respect to specific preferred embodiments thereof, the invention is not limited to the embodiments described above, and is commonly used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge will be able to make various variations.

Claims (9)

In the device for controlling the lighting of the night light of the microwave oven, A solar cell panel mounted to a front panel of a microwave oven and configured to receive a solar light source or an indoor light source and convert it into electrical energy; A lamp driver configured to receive power supplied from the solar cell panel and charge the battery at a constant voltage, and supply and control the charge voltage to a night light in response to a lamp control signal; And Night light control device for a microwave oven, characterized in that the microcomputer for controlling the lamp driving unit on and off based on the amount of light detected from the solar cell panel. The nighttime lamp of the microwave oven according to claim 1, wherein the microcomputer generates the lamp control signal for controlling the lamp driver to be turned off in response to a key signal of the microwave oven for manual control of the nightlight. Control unit. The method of claim 1, wherein the lamp driver further comprises a battery connected in parallel with the solar panel, wherein the battery and the solar panel are connected to each diode in a forward direction to exclude interference with the mutual output power. Microwave night light control device. The nighttime lamp control apparatus according to claim 3, wherein the battery is a mercury battery. The nighttime lamp control apparatus of a microwave oven according to claim 1 or 2, wherein the nightlight is at least one light emitting diode or a high brightness light emitting diode. The lamp driver of claim 1, wherein the lamp driver comprises a switching circuit configured to receive the charging power provided from the solar panel and the battery according to the lamp control signal, and the switching circuit is AND. Night light control device for a microwave oven, characterized in that a gate is used or a transistor circuit is used. In the microwave night light control method for operating the microwave night light control device according to claim 1, a) determining whether a key signal for manually controlling the night light is input, recognizing it as a manual mode when the key signal is input, and recognizing it as an automatic mode when the key signal is not input; ; b) It is determined whether a lighting key for turning on the night lamp is input according to the manual mode, and when the lighting key is input, the lamp driving unit is operated to determine the voltage charged from the solar cell panel. Supplying the night light; c) disabling the lamp driving unit when the lighting key is not input in step b) to cut off power connected to the night light; d) detecting a voltage supplied from the solar cell panel according to the automatic mode of step a) to determine whether a preset reference value is exceeded; e) when the reference value is not exceeded, assuming that it is night and enabling the lamp driving unit to supply a voltage charged from the solar cell panel to the night lamp; And f) when the reference value is exceeded, it is assumed that the daytime and the lamp driving unit to operate the night light control method of the microwave oven, characterized in that the step of shutting off the power connected to the night light. The method of claim 7, wherein the solar cell panel is connected in parallel with a battery, and the battery is a mercury cell. The method of claim 7, wherein the night light is at least one light emitting diode or a high brightness light emitting diode.

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