KR20070062844A - Method for controlling motor of kimchee refrigerator - Google Patents

Abstract

A method of controlling the operation of a motor of a Kimchi refrigerator is provided, which prevents an overload of the Kimchi refrigerator, improves user's convenience by preventing reset of the Kimchi refrigerator and enables designing a low power output section. The motor of a Kimchi refrigerator is controlled by the following steps of: judging whether a cooling fan is operated or not in case a request for operation of a step motor is detected during the operation of the Kimchi refrigerator; terminating operation of the cooling fan in case the operation of the cooling fan is detected and operating the step motor by a preset step; and operating the cooling fan again in case the operation of the step motor is terminated by judging whether the operation of the step motor is terminated or not. The cooling fan is operated successively by the preset priority order in the operation of the cooling fan.

Description

Method for controlling motor of kimchee refrigerator}

1 is a cross-sectional view showing the configuration of a typical kimchi refrigerator.

Figure 2 is a block diagram showing in more detail the conventional kimchi refrigerator configuration.

3 is a flow chart showing a motor control process of the kimchi refrigerator according to the present invention.

Figure 4 is a waveform diagram showing a waveform that the motor control signal of the kimchi refrigerator according to the present invention.

(Explanation of symbols for the main parts of the drawing)

100: kimchi refrigerator 110: compressor

120: condenser 130: cooling fan

140: first evaporator 141: second evaporator

150: first storage 151: second storage

160: first door 161: second door

170: first cooling fan 171: second cooling fan

200: control unit 210: temperature detection unit

220: compressor drive unit 230: step motor drive unit

240: step motor 250: first cooling fan drive unit

260: second cooling fan drive unit

The present invention relates to a motor control of a kimchi refrigerator, and more particularly, by setting priorities during operation of a step motor and various cooling fans operating in the kimchi refrigerator to prevent the simultaneous operation of the kimchi refrigerator overload prevention and low power It relates to a motor control method of kimchi refrigerator that can be designed.

In general, in order to store frozen and refrigerated foods or fermented foods (for example, kimchi, etc.), they should be stored at a temperature suitable for storing them. A refrigerator having a freezer and a refrigerating chamber is mainly used to perform these functions. do.

On the other hand, when the refrigerated food and the fermented food is stored together in the refrigerator, the odor generated by the fermentation of the fermented food will not only cause odors in the refrigerating chamber, but also odors will be infiltrated into other refrigerated foods, so There is a need to store bulky fermented foods (eg, kimchi) in separate reservoirs due to the increase in refrigerated and fermented foods that can be altered and stored in the refrigerator compartment.

Also, kimchi should be buried in the ground with a storage container (for example, kimchi jar) to store kimchi for proper ripening, and stored in this storage container so that it can be ripened and tasted properly.

However, it is difficult to bury storage containers such as Kimchi jars in the ground due to the limitations of the residential environment of apartments, townhouses, and the like.

Recently, in order to solve the problems described above, research on kimchi refrigerators that can store kimchi in a separate refrigerator instead of a general refrigerator has been variously studied in various technical fields related to such kimchi refrigerators. Control to supply the refrigerant compressed in the compressor into the desired reservoir.

In addition, the kimchi refrigerator is a drawer of the upper opening and closing the door is formed in the form of a drawer, the door is attached to the upper surface by a hinge or the like according to the door opening and closing method of the kimchi refrigerator for storing kimchi, the mixed mixing of the upper opening and closing and the drawer It is divided into expressions.

This conventional top-opening kimchi refrigerator is shown in FIG. In this case, the Kimchi refrigerator 100 includes a compressor 110 for compressing a refrigerant, a cooling fan for exchanging the refrigerant passing through the condenser 120 and the condenser 120 for exchanging the refrigerant compressed in the compressor 110. 130 and the first evaporator 140 and the second evaporator 141 through which the refrigerant heat exchanged in the condenser 120 is passed through an expansion valve (not shown) and vaporized to be cooled by heat exchange with surrounding air. It is provided in the 1st reservoir 150 and the 2nd reservoir 151, respectively.

In addition, the first sensor 160 and the second sensor 161 detecting the temperature of the first reservoir 150 and the second reservoir 150 cooled by the first and second evaporators 140 and 141 are respectively. It is installed in the first and second reservoirs 150 and 151.

In addition, the first door 160 and the second door 161 are installed on the first reservoir 150 and the second reservoir 151 through the main body and the hinge of the kimchi refrigerator 100, respectively, the first door Inside the 160 and the second door 161, the first cooling fan 170 and the second cooling fan allow the cold air of the first reservoir 150 and the second reservoir 151 to circulate inside the reservoir. 171 is provided.

Figure 2 is a block diagram showing in more detail the conventional kimchi refrigerator configuration.

As shown in FIGS. 1 and 2, the first and second reservoirs 151 and the first and second reservoirs 150 and 151 for storing kimchi are circulated inside the reservoirs. A control unit for outputting a control signal for controlling the step motor 240 to circulate the refrigerant of the Kimchi refrigerator using the control signal of the first cooling fan 170 and the second cooling fan 171 and the temperature detected by the sensors ( 200 and a temperature detector 210 connected to a sensor (not shown) that detects a temperature of each storage unit and transmitting a temperature detected from each sensor to the controller 200, and a control output from the controller 200. The compressor driver 220 for controlling the compressor 110 for compressing the refrigerant in accordance with the signal, the motor driver 230 for driving the step motor 240 for controlling the refrigerant, and is output from the controller 200 The operation of the first cooling fan 170 is controlled in accordance with the control signal. The air cooling unit includes a first cooling fan driver 250 and a second cooling fan driver 260 for controlling the operation of the second cooling fan 171 according to a control signal output from the controller 200.

The conventional kimchi refrigerator 100 is designed to independently control the step motor 240 and the first and second cooling fans 170 and 171 to control the refrigerant, but when designing the power supply The power unit is designed on the assumption that the maximum current flows in anticipation of the conditions for simultaneously driving the first and second cooling fans 170 and 171 and the step motor 240.

However, designing such a high output power supply unit not only increases the production cost of the Kimchi refrigerator, but also has a complicated design problem.

In addition, the first and second cooling fans 170 and 171 and the step motor 240 simultaneously operate during the operation of the kimchi refrigerator 100, causing the Kimchi refrigerator to be overloaded due to the driving of the motor. There is this.

In addition, in the case of the Kimchi refrigerator 100, it is a basic function to control the temperature of each reservoir by controlling a refrigerant. When the first and second cooling fans 170 and 171 are driven while the step motor 240 is in operation, the power supply unit There is a problem that the kimchi refrigerator is reset due to the overload generated in the.

In order to solve the above problems, the present invention sets a priority when the step motor and various cooling fans used in the Kimchi refrigerator operate the motor control method of the Kimchi refrigerator to prevent the step motor and various cooling fans from operating at the same time. It aims to provide.

In order to achieve the above object, the present invention is a motor control method of the kimchi refrigerator to allow the cold air of the reservoir to be circulated through the cooling fan, and select the reservoir to be supplied with the refrigerant through the step adjustment of the step motor, during the operation of the kimchi refrigerator Determining whether the cooling fan is operating when detecting the operation request of the step motor; When the operation of the cooling fan is detected when the operation request of the step motor is detected during the operation of the kimchi refrigerator, the operation of the cooling fan is terminated when the operation of the cooling fan is detected, and the step motor Operating according to a preset step; And when the operation of the cooling fan is detected, terminating the driving of the cooling fan and allowing the step motor to operate according to a preset step to determine whether the operation of the step motor is terminated to operate the step motor. If it is terminated is characterized in that it comprises the step of operating the cooling fan again.

In addition, the step motor is characterized in that the first operation among the plurality of motors provided in the kimchi refrigerator.

In the case where the operation request of the step motor is detected during the operation of the Kimchi refrigerator, the step of determining whether the cooling fan is operating may include operating the step motor according to a preset step if the operation of the cooling fan is not detected. It characterized in that it comprises a step to make.

The cooling fan may be sequentially operated according to a predetermined operation priority in the step of allowing the cooling fan to be operated again when the operation of the step motor is terminated.

In addition, the operating priority of the cooling fan to be sequentially operated is characterized in that it is set according to the operation before the drive of the step motor, and the presence or absence of rapid cooling.

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

First, repeated description of the same configuration as in the prior art is omitted, and the same reference numerals are used for the same configuration.

3 is a flowchart illustrating a motor control process of the kimchi refrigerator according to the present invention.

1 to 3, the kimchi refrigerator 100 operates according to a control signal from the controller 200 for controlling the operation of the kimchi refrigerator 100 (S100), and the controller 200 controls the refrigerant. When the operation request of the step motor 240 for the control is detected (S110), the control unit 200 includes a cooling fan provided in the kimchi refrigerator 100, that is, the first cooling fan 170 and the second cooling fan 171. It is determined whether it is in operation (S120).

The operation request detection of the step motor 240 in the step S110 detects the temperature value of each storage from the temperature detector 210 for detecting the temperature of the storage and provides it to the controller 200.

At this time, the control unit 200 selects a reservoir whose temperature value of each reservoir detected by the temperature detector 210 is less than a temperature set by the user, and supplies a stepped motor to supply the refrigerant compressed by the compressor 110 only to the selected reservoir. The step of the step motor 240 is controlled through the driver 230.

If there is no cooling fan currently operating in step S120, the step motor driver 230 outputs a control signal to the step motor 240 to operate according to a preset step (S121).

On the other hand, when at least one cooling fan operation is detected in step S120, the control unit 200 causes the first cooling fan driver to terminate the operation of the currently operating cooling fan (eg, when the first cooling fan is in operation). Outputs a control signal for terminating the operation to 250 to terminate the operation of the first cooling fan 170 (S130), when the operation of the first cooling fan 170 is terminated, the step motor 240 is set in advance The step motor 240 is operated by outputting an operation control signal to the step motor driver 230 to operate according to the step (S140).

After performing step S140, the control unit 200 determines whether the operation of the step motor 240 is terminated (S150), and if the operation of the step motor is not terminated, the step motor 240 operates according to a preset step. In step S140, the operation control signal is output to the stepper motor driver 230 so that the stepper motor 240 is operated.

On the other hand, in step S150, when the operation of the step motor 240 is terminated, the controller 200 determines the operating priority of the cooling fan in order to re-operate the terminated cooling fan according to the operation of the step motor 240. (S160).

The operation priority of the cooling fan determined in step S160 allows the cooling fan that is performing the operation before the step motor 240 is driven, and drives the cooling fan of the reservoir in which rapid cooling is selected according to the user's setting. .

Therefore, in the present exemplary embodiment, an operation control signal is output to the first cooling fan driver 250 so that the first cooling fan 170 which is stopped before the step motor 240 is operated again (S170) and then sequentially The storage fan (eg, the second cooling fan) is sequentially driven to operate.

Figure 4 is a waveform diagram showing a waveform that the motor control signal of the kimchi refrigerator according to the present invention. As shown in FIG. 4, after driving of the second cooling fan is terminated, a signal is outputted after a predetermined time delay D3 and then driven by the first cooling fan.

When the operation request of the step motor is detected while the signal is being output to operate the first cooling fan, the operation of the first cooling fan is terminated, a delay is delayed for a predetermined time (D1), and the signal is output to operate the step motor.

After the operation of the step motor is finished, a delay (D2) is performed for a predetermined time, and then a control signal is output so that the first cooling fan which is operating before the operation of the step motor is operated again.

Therefore, when the operation of the step motor is requested, the first operation among the plurality of motors provided in the kimchi refrigerator.

In addition, the motors required to drive the kimchi refrigerator are sequentially operated.

As described above, the present invention has an advantage of preventing overloading of the kimchi refrigerator due to the driving of the motor by preventing the plurality of cooling fans and the step motor from operating at the same time during the operation of the kimchi refrigerator.

In addition, the present invention has the advantage of preventing the reset of the kimchi refrigerator by blocking the overload generated during the operation of the kimchi refrigerator to improve the user's ease of use.

In addition, the present invention has the advantage that it is possible to design a power unit of a small output by sequentially operating the motor required for cooling the kimchi refrigerator.

In addition, the present invention has the advantage of reducing the production cost of the kimchi refrigerator according to the design of the small output power unit of the kimchi refrigerator.

In the above, the present invention has been illustrated and described with respect to certain preferred embodiments. However, the present invention is not limited to the above-described embodiments, and those skilled in the art to which the present invention pertains can vary as many as possible without departing from the spirit of the present invention as set forth in the claims below. Changes may be made.

Claims (5)

As a motor control method of the Kimchi refrigerator to allow the cold air of the reservoir to be circulated through the cooling fan, and to select the reservoir to be supplied with the refrigerant through the step adjustment of the step motor, a) determining whether the cooling fan is operating when the operation request of the step motor is detected during the operation of the kimchi refrigerator; b) terminating driving of the cooling fan when the operation of the cooling fan is detected in step a and allowing the step motor to operate according to a preset step; And c) determining whether the operation of the stepper motor operated in step b is terminated and causing the cooling fan to be operated again when the operation of the stepper motor is terminated. The method of claim 1, wherein the step motor operates first. The method of claim 1, wherein the step b comprises operating the step motor according to a preset step when the operation of the cooling fan is not detected. The method of claim 1, wherein the cooling fan of step c operates sequentially according to a preset operation priority. The method of claim 4, wherein the operation priority of the cooling fan is set according to whether the step motor is driven before driving and whether there is rapid cooling.

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