KR20070008822A - Kimchi refrigerator with fermented soybeans function - Google Patents

Abstract

A kimchi refrigerator for soup prepared with fermented soybeans(cheongkukjang) capable of automatically controlling the operation of a heating means inside a cheongkukjang compartment by the operation of an outdoor temperature sensor due to outdoor air temperature is provided. The kimchi refrigerator can manufacture uniform-quality cheongkukjang regardless of the change in environmental conditions according to season. The kimchi refrigerator for cheongkukjang contains: a cheongkukjang compartment to ferment and store cheongkukjang; an outdoor air temperature sensor to sense outdoor air temperature(D1); a heating device mounted on one side of a cheongkukjang compartment to heat the interior of the compartment; and a control part to control the operation of the heating device. The control part selects the operation of the heating device by comparing the outdoor air temperature which is sensed by the outdoor air temperature sensor and the reference temperature(D2) which becomes a standard for judgment of a season. The reference temperature is 10deg.C.

Description

Cheonggukjang Kimchi Refrigerator {Kimchi refrigerator with fermented soybeans function}

1 is a perspective view showing the appearance of the kimchi refrigerator employing a preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Figure 2 is a side cross-sectional view showing the configuration of the kimchi refrigerator employing a preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Figure 3 is a schematic cross-sectional view showing the internal configuration of the cheongukjangkan that is the main configuration of the preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Figure 4 is a block diagram schematically showing a control system of the heating means which is a main component of the preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Figure 5 is a flow chart schematically showing the operating sequence of the preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Figure 6 is a graph showing the temperature change over time inside the Cheongukjang Khan that is the main component of the preferred embodiment of the Cheonggukjang Kimchi refrigerator according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Body 120. Outcase

140a. Upper Inner Case 140b. Lower inner case

160. Insulation material 180. Motion control part

182. Display 184. Operation Buttons

186. Air Sensor 200. Storage Container

220. Lid seat 222. Left door

240. Lid Ucan 242. Ucan Door

300. Cooler 300 '. Drawer cooler

320. Heater 340. Compressor

360. Machine room 400. Drawer slot

420. Ucan Drawer 422. Ucan Drawer

424. Ucan Drawer Basket 440. Drawer Rail

500. Cheonggukjang Khan 520. Cheonggukjang Drawer

522. Cheonggukjang Drawer Door 524. Cheonggukjang Drawer Basket

540. High temperature sensor 560. Heating means

600. Cheonggukjang container 700. Control unit

D1. Ambient temperature D2. Reference temperature

D3. Fermentation temperature D4. Storage temperature

R1. Normal operation R2. Winter operation

The present invention relates to a kimchi refrigerator, and more particularly, to the Chungkookjang kimchi refrigerator that is provided with an outside air sensor for sensing the outside temperature to control the operation of the heating means by automatically selecting the appropriate operation according to the detected outside temperature will be.

In general, Cheonggukjang is a Korean soybean paste made with soybeans cooked in a hot place to create Bacillus natto. In addition, anti-cancer prevention and adult disease prevention effects have been proven to increase the consumption of foods that meet the well-being trend.

Because of this, in recent years, a number of devices for manufacturing Cheonggukjang, such as slow cookers and multi-purpose cookers, have been developed in an effort to easily manufacture Cheonggukjang. However, it is necessary to purchase a separate device and have some inconveniences in use such as storage after use. There is this.

In addition, the kimchi refrigerator is a refrigerator made for the purpose of storing kimchi, and is capable of temperature control so that 0-5 ° C. is maintained so that the kimchi can be aged and stored, and has an excellent intermittent performance of cold air compared to a general refrigerator.

In recent years, independent temperature control is possible in each storage space formed inside the Kimchi refrigerator, which is used to store not only kimchi but also various foods such as vegetables, fruits, and meat.

The cooling method of the Kimchi refrigerator is divided into an indirect cooling method by the supply of cold air and a direct cooling method that directly cools the inside of the refrigerator, and a direct cooling method having excellent cooling effect and cold storage ability is commonly used.

The kimchi refrigerator is divided into a lid type for opening and closing the lid of the upper surface according to the opening and closing method, a drawer type for storing the drawer-shaped storage space in and out of the drawer type, and a combination of the lid type and the drawer type.

However, the prior art as described above has the following problems.

Conventionally, in order to manufacture Cheonggukjang, Cheonggukjang should be manufactured by purchasing a dedicated device for manufacturing Cheonggukjang, and after use, it should be stored in a separate storage space and taken out whenever necessary. have.

In addition, the conventional dedicated device for manufacturing the Cheonggukjang manufactures the Cheonggukjang by operating the heater in the heating method specified by the user's input. However, in the case of manufacturing Cheonggukjang in this way, the quality of the Cheonggukjang produced in Korea, where the temperature and humidity difference is severe according to the season is not uniform.

In particular, when the temperature and humidity is low in winter, the fermentation itself of Cheonggukjang is not made or the fermentation quality is lowered.

An object of the present invention is to solve the problems of the prior art as described above, is provided with an external air sensor for detecting the outside temperature to automatically select the appropriate operation in the control unit according to the detected outside temperature to control the operation of the heating means Cheonggukjang is to provide kimchi refrigerator.

Cheonggukjang kimchi refrigerator according to the present invention for achieving the object as described above, in the kimchi refrigerator equipped with the Cheonggukjang Khan that can be produced and stored Cheonggukjang, mounted on one side of the main body to form the outer, to detect the outside temperature An outside sensor; A heating means provided at one side of the cheongguk jangkan to heat the interior of the chungguk jangkan; It is connected to the outside air sensor and the heating means, and comprises a control unit for controlling the operation of the heating means; The control unit is configured to select the operation of the heating means by comparing the outside air temperature sensed by the outside air sensor and the reference temperature set in the control unit as a reference for the season judgment.

Operation of the heating means consists of a normal operation performed when the temperature sensed by the outside air sensor is higher than the reference temperature, and a winter operation performed when the temperature sensed by the outside air sensor is lower than the reference temperature.

The reference temperature is 10 ° C.

The reference temperature can be arbitrarily set by a user's operation.

Operation of the heating means is performed when the temperature sensed by the outside air sensor is higher than the reference temperature which is the standard of the season judgment, and the temperature sensed by the outside air sensor is higher than the reference temperature which is the standard of the season judgment. It is composed of winter operation when it is low.

According to the present invention having such a configuration, it is possible to manufacture the Cheonggukjang with a uniform quality even in accordance with the change of environmental conditions according to the season, there is an effect of improving the manufacturing performance of the Cheonggukjang.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention having the configuration as described above will be described in detail.

1 is a perspective view showing the appearance of a kimchi refrigerator employing a preferred embodiment of the Chungkookjang kimchi refrigerator according to the present invention, Figure 2 is a side cross-sectional view showing the configuration of a kimchi refrigerator employing a preferred embodiment of the Chungkookjang kimchi refrigerator according to the present invention. .

As shown in these figures, the main body 100 forming the overall shape of the kimchi refrigerator is formed in a substantially rectangular parallelepiped shape, the outer case 120 and the outer case 120 forming the appearance of the main body 100 The inner case 140a and 140b are provided to be spaced apart by a predetermined interval to form a shape inside the main body 100.

The inner cases 140a and 140b are formed in various shapes according to the shape of the storage space formed in the main body 100, and in the case of the composite kimchi refrigerator, an upper inner case forming the storage space above the main body 100. 140a and a lower inner case 140b forming a storage space under the main body 100.

Between the outer case 120 and the inner case (140a, 140b) is filled with a heat insulating material 160 to prevent the loss of cold air.

Meanwhile, lid compartments 220 and 240 are formed at an upper portion of the main body 100. The lid compartments 220 and 240 are spaces formed for storing food, and are formed such that the upper inner case 140a is recessed downward by a predetermined depth to form a storage space having an upper opening.

The lid compartment 220 and 240 are generally divided into a lid seat compartment 220 and a lid compartment 240 to form separate storage spaces, and the lid compartment 220 and the lid compartment 240 are hinged to be rotatable. The left compartment door 222 and the right compartment door 242 which are coupled to selectively cover the opened upper surface of the lid seat compartment 220 and the lid compartment 240 are provided.

In addition, the coil-shaped cooler 300 is mounted along the upper outer surface of the upper inner case 140a so as to be pulled out a plurality of times, and the coil-shaped heater 320 is disposed along the lower outer surface of the upper inner case 140a. It is mounted to be wound several times.

In addition, the operation control unit 180 is formed on the upper front of the main body 100. The operation control unit 180 is to control the overall operation of the kimchi refrigerator, the operation control unit 180 is provided with a display 182 showing the operating state and the operation button 184 for adjusting the operation.

One side of the motion control unit 180 is equipped with an outside air sensor 186. The outside sensor 186 measures the temperature of the air in the indoor space where the kimchi refrigerator is installed, and may be mounted to be exposed to the outside of the main body 100, that is, the outside of the motion control unit 180. .

The outside sensor 186 is connected to the control unit 700 to be described below to transmit the temperature of the measured outside air, thereby adjusting the operation of the heating means 560.

Meanwhile, drawer bins 400 and 500 are formed below the main body 100. The drawer compartments 400 and 500 are formed so that the lower inner case 140b is recessed to the rear, and are formed to be opened to the front. The cheonggukkan compartment 500 formed on the left side of the center and the drawer compartment 400 formed on the right side are formed. It is divided into

The drawer cooler 300 ′ is mounted on an inner surface of the lower inner case 140 b forming the inner shape of the drawer compartments 400 and 500. The drawer cooler 300 ′ is for cooling the inside of the drawer compartments 400 and 500 and is bent and mounted a plurality of times in a meandering manner so as to be evenly distributed over the entire upper surface. It may also be mounted on both sides and the rear of the (400,500).

The cheongukjang drawer 500 and the drawer wooche 400 is formed inside the drawer type is a drawer draw / withdrawal is equipped with the cheongukjang drawer 520 and the Ucan drawer 420, respectively, the cheongukjang drawer 520 and the Ucan drawer Each storage space is formed at 420.

The Ucan drawer 420 is composed of a Ucan drawer 422 and a Ucan drawer basket 424 to form a storage space, the Ucan drawer basket 424 is a food or storage container for storage ( 200) is accommodated.

In addition, both sides of the right drawer 420 or the both sides of the inner side of the drawer Wook 400 corresponding to the drawer rail 440 is provided with a multi-extension and contraction is provided, by the take-out rail 440 The slide drawer / mouth of the drawer drawer 420 is possible.

The withdrawal rail 440 and the withdrawal guide 460 are also mounted on the cheongguk drawer 520 to be described in detail below, so that the cheongguk drawer 520 can slide out / receive inside the cheongguk drawer 500. Of course.

In the exemplary embodiment of the present invention, the cheongguk drawer 520 is formed on the left side of the drawer compartment 400, 500, but may be formed on the right side of the drawer compartment 400, 500 as necessary.

On the other hand, the rear of the drawer compartment (400, 500) formed in the lower portion of the kimchi refrigerator main body 100, the machine room is provided with components for constituting the refrigeration cycle of the kimchi refrigerator, including the compressor 340 and a condenser (not shown) ( 360 is formed, and the machine room 360 is separated from the drawer compartments 400 and 500 to form an independent space.

Figure 3 is a cross-sectional view schematically showing the internal configuration of the cheongukjangkan main components of the preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

Looking at the interior of the cheongukjangkhan in more detail as shown in these drawings, the cheongukjangkhan 500 is formed on the lower left side of the main body (100).

The cheongukjang drawer 520 is mounted inside the cheonggukjang drawer 500 drawer / drawer, the cheongukjang drawer 520 is composed of a cheongukjang drawer door 522 and a cheongukjang drawer basket 524. In addition, the inside of the Cheongguk drawer 520, that is, the inside of the Cheongguk drawer basket 524, the cheongukjang container 600 is selectively seated.

The Cheonggukjang container 600 is a container for storage and fermentation of Cheonggukjang, and is formed to accommodate soybeans or Cheonggukjang for fermentation, and a plurality of through-holes are formed to control moisture and humidity to be suitable for the production of Cheonggukjang. .

The inside of the Cheonggukjang (500) can accommodate the kimchi, including the fermented soybeans for fermentation, by the operation of the heating means 560 the inside of the Cheonggukjang (500) is formed a temperature suitable for fermentation.

The heating means 560 is for heating the inside of the Cheonggukjang Khan 500, the heat generated so as to heat the inside of the Cheonggukjang Khan 500 to 37 ~ 57 ℃ for fermentation of Cheonggukjang according to the user's operation Done.

The heating means 560 is mounted to the side forming the inner bottom and / or circumference of the Cheonggukjang 500. In addition, the heating means 560 is formed to be bent a plurality of times in a meander shape (狀 行,), and formed to a size that can occupy the entire surface of the cheongukjangkan 500 for even heating of the cheongukjangkan (500). It would be desirable to.

The heating means 560 may be formed in plural as necessary, and the mounting position may also be mounted at other positions inside the Cheonggukjang compartment 500.

The heating means 560 is generally composed of an electric heater, and if necessary, it may be composed of a Peltier element instead of the electric heater. The Peltier device may be formed in a flat plate shape unlike an electric heater by heating the inside of the Cheonggukjang compartment 500 by a heat transfer effect.

On the other hand, the inner temperature sensor 540 is mounted on one side of the Cheonggukjang 500. The high temperature sensor 540 measures the temperature inside the Cheonggukjang compartment 500, and transmits the measured temperature to the control unit 700 so that the temperature inside the Cheonggukjang compartment 500 can be adjusted.

The control unit 700 is for controlling the operation of a plurality of electrical components, including the heating means 560, are connected to the operation control unit 180, the outside air sensor 186 and the high temperature sensor 540 these The operation of the heating means 560 is adjusted according to the value input by each.

That is, the user's manipulation through the motion control unit 180 and the value input by the outside air sensor 186 are transmitted to the control unit 700, and the control unit 700 accordingly controls the heating means 560. Will choose to drive. And, the temperature value detected by the temperature sensor 540 during operation of the heating means 560 is transmitted to the control unit 700, according to the conditions of the control unit 700 of the heating means 560 The operation is determined.

On the other hand, the drawer cooler (300 ') is wound inside the lower inner case (140b) forming the upper portion of the cheongukjang (500). The drawer cooler 300 ′ is for cooling the inside of the Cheonggukjang compartment 500, ie, the inside of the Cheongguk drawer 520 and the inside of the Cheonggukjang container 600, so that the fermentation finished Cheonggukjang can be stored at a specific temperature. do.

Hereinafter, the operation of the Cheonggukjang Khan, which is a main component of the Cheonggukjang Kimchi Refrigerator according to the present invention having the configuration as described above, will be described with reference to the drawings of FIGS. 1 to 6.

Figure 4 is a schematic block diagram showing a control system of the heating means which is a main component of the preferred embodiment of the Chungkookjang kimchi refrigerator according to the present invention, Figure 5 schematically shows the operation sequence of the preferred embodiment of the Chungkookjang kimchi refrigerator according to the present invention. Flowchart. And, Figure 6 is a graph showing the temperature change with time inside the cheongukjangkan which is the main component of the preferred embodiment of the cheongukjang kimchi refrigerator according to the present invention.

As shown in the drawing, in order to manufacture the Cheonggukjang in the Cheonggukjang Khan 500, after filling a certain amount of boiled soybeans or soaked soybeans in the Cheonggukjang container 600, the cheonggukjang drawer (520) withdrawn sliding sliding Cheonggukjang drawers basket 524 is placed inside.

Next, by sliding the cheonggukjang drawer 520 so that the Cheonggukjang compartment 500 is completely sealed to the outside and then operating the operation button 184 of the operation control unit 180 for the fermentation of Cheonggukjang Will be selected.

The user selects a course suitable for the fermentation of the soybeans in accordance with the amount or state of the beans filled in the chungkukjang container 600, each has a different heating temperature and heating time. [Course input step (S100) )]

A corresponding input signal is transmitted to the controller 700 according to the course input of the operation button 184 and the heating means 560 is operated according to the transmitted input signal. For the fermentation of the Cheonggukjang, the heating means 560 generates heat until the temperature inside the Cheonggukjang compartment 500 reaches the fermentation temperature D3.

The fermentation temperature (D3) can be set in various ways depending on the state of the stored beans or the user's choice is generally determined in the range of 37 ~ 57 ℃, the inside of the Cheonggukjang (500) the fermentation temperature (D3) By continuing with the Cheonggukjang inside the Cheonggukjang Khan 500 reaches the fermentation temperature (D3).

On the other hand, at the same time as the selection of the course for the fermented soybean paste by the operation of the operation button 184, the outside air sensor 186 is activated to detect the outside air temperature (D1). The temperature value detected by the outside air sensor 186 is transmitted to the controller 700, and the controller 700 selects the operation of the heating means 560 in comparison with the reference temperature D2.

The reference temperature (D2) is a temperature for distinguishing winter and summer, which generally have a large temperature and humidity difference. The reference temperature (D2) is based on a time of approximately 10 ° C., and if necessary, the reference temperature (D2). It is also possible for the user to adjust and set appropriately.

That is, it is obvious that the quality of Cheonggukjang will be lowered when the heating means 560 is operated in the summer, which is generally performed in a relatively low humidity, and in order to prevent this, Operation of the heating means 560 is also performed differently according to the difference in environmental conditions. [Operation selection step (S200)]

When the outside air temperature (D1) detected by the outside sensor (186) is higher than the reference temperature (D2), the control unit 700 in the humidity and temperature is suitable for the general fermentation of Cheonggukjang so that the fermentation of Cheonggukjang in normal operation It is determined that the heating means 560 is controlled so that the normal operation (R1).

The normal operation (R1) is to operate the heating means in accordance with the operating course input by the user, it is generally set to be the same as the operating temperature and time of the heating means 560 is set during the fermentation of Cheonggukjang.

Referring to FIG. 5, the normal operation (R1) state is relatively higher than the initial temperature during the winter operation (R2). Therefore, the time to reach the fermentation temperature (D3) by the operation of the heating means 560 is relatively shorter than during the winter operation.

When the temperature inside the Cheongukjang Khan reaches the fermentation temperature D3 during the normal operation (R1), the heating means 560 refers to the Cheonggukjang Khan with reference to the temperature value detected by the internal temperature sensor 540. Operation 500 is controlled by the control unit 700 so that the interior can continuously maintain the fermentation temperature (D3). [Normal operation step (S300)]

When the heating means 560 is continuously operated to reach the normal completion point T1 at which fermentation of the chungkukjang is completed, the heating means 560 is turned off and drops to a storage temperature D4 at which the cheonggukjang can be stored.

The storage temperature (D4) may be preferably set to approximately 1 ℃ as a temperature that is easy to use Cheonggukjang without the growth of the fermented Baekdujang of fermented Cheonggukjang.

In order to cool the inside of the Cheonggukjang compartment 500 at a storage temperature (D4), stop the operation of the heating means 560 and then naturally cool or drawer cooler 300 'mounted inside the Cheonggukjang compartment 500. By operating the internal temperature of the Cheonggukjang compartment 500 to reach the storage temperature (D4).

At this time, the storage temperature (D4) is an average temperature, there is some change by the repeated on / off of the drawer cooler (300 ') cooling the inside of the Cheonggukjang (500), but the average of about 1 ℃ As the temperature inside the Cheonggukjang compartment 500 is maintained at the storage temperature (D4), the temperature of the fermented Cheonggukjang itself also drops to the storage temperature (D4). [Storage step (S400)]

On the other hand, when the outside air temperature (D1) detected by the outside air sensor 186 is lower than the reference temperature (D2), the control unit 700 is low in humidity and temperature, it is determined that the fermentation of Cheonggukjang in normal operation is impossible The heating means 560 is controlled to be winter operation (R2).

The winter operation (R2) is to operate the heating means 560 for a time increased by 20% than the operating time of the heating means 560 according to the operation course by the user's selection, the winter operation ( Let's take a closer look at R2).

Looking at the winter operation state with reference to Figure 5, the initial temperature at the winter operation (R2) is relatively lower than the normal operation (R1), and thus the fermentation temperature by the operation of the heating means 560 The arrival time up to D3 is longer than in the normal operation R1.

When the temperature inside the Cheonggukjang 500 reaches the fermentation temperature D3 during the winter operation (R2), the heating means 560 refers to the temperature value detected by the high temperature sensor 540. The operation is controlled by the control unit 700 so that the interior of the Cheonggukjang 500 can be continuously maintained in the fermentation temperature (D3). [Winter operation step (S300 ')]

When the heating means 560 is continuously operated to the winter completion point (T2) when the fermentation of chunggukjang is completed, the heating means 560 is turned off to fall to the storage temperature (D4) that can be stored It will be able to store the fermented soybean paste. [Storage step (S400)]

On the other hand, when looking at the normal completion time (T1) and the winter completion time (T2), which is the fermentation completion time of the normal operation (R1) and winter operation (R2), the winter completion time (R2) ( It can be seen that T2) is later than the normal completion point T1 in the normal operation R1, which means that the operation time of the heating means 560 is longer in the winter operation R2.

That is, when the outside air sensor 186 detects the outside temperature D1 and transfers the detected temperature value to the controller 700, the outside temperature D1 detected by the controller 700 is the reference temperature ( If higher than D2), a normal operation (R1) such as a course input by the user is performed. If the detected outside temperature (D1) is lower than the reference temperature (D2), the heating means is higher than the course input by the user. The winter operation R2 is performed to make the 560 operate longer.

At this time, the operating time of the heating means 560 during the winter operation (R2) is the operating time of the heating means 560 of the course input by the user through the operation control unit 180, that is, during the normal operation (R1) It is adjusted by the control unit 700 to add 20% more than the operating time of.

Therefore, it is possible to have the same quality as the Cheonggukjang fermented in the environment during the winter operation (R2), where the outside temperature (D1), initial temperature and humidity are lower than the normal operation, in the environment during the normal operation (R1). It is possible to prepare so that.

The scope of the present invention is not limited to the above embodiments, and many other modifications based on the present invention will be possible to those skilled in the art within the above technical scope.

 Cheonggukjang kimchi refrigerator according to the present invention as described in detail above, by detecting the outside air in the outside sensor to distinguish the winter and summer having a difference in temperature and humidity to perform the winter operation in winter and normal operation in the summer, During the winter operation, the heating means can be operated for a longer time than in the normal operation corresponding to the step input by the user.

Therefore, it is possible to manufacture Cheonggukjang with the same quality as Cheonggukjang produced during normal operation, such as summer, even in winter with relatively low temperature and humidity, thereby improving the production performance of Cheonggukjang.

In addition, even when the outside air is very cold winter, even if the internal temperature of the Cheonggukjang Khan is affected by the outside air, it is possible to manufacture the Cheonggukjang of uniform quality by the continuous operation of the heating means.

In addition, in Korea, where the temperature and humidity change is relatively high according to the season, the user does not need to input the operation of the heating means differently according to the change of the season, that is, the temperature and the humidity, and the operation is automatically performed in one operation. Because it is set, there is an effect that can maximize the user's convenience.

Claims (6)

In the kimchi refrigerator equipped with the Cheonggukjang Khan that can manufacture and store the Cheonggukjang, An external air sensor mounted on one side of the main body to form an external shape, and configured to sense an external air temperature; A heating means provided at one side of the cheongguk jangkan to heat the interior of the chungguk jangkan; It is connected to the outside air sensor and the heating means, and comprises a control unit for controlling the operation of the heating means; The control unit is configured to select the operation of the heating means by comparing the outside temperature detected by the outside air sensor and the reference temperature which is set in the control unit as a reference for the season judgment, the kimchi refrigerator. According to claim 1, wherein the operation of the heating means, Normal operation performed when the temperature sensed by the outside air sensor is higher than the reference temperature; Cheonggukjang kimchi refrigerator characterized in that the winter operation is performed when the temperature sensed by the outside air sensor is lower than the reference temperature. [Claim 3] The Cheonggukjang Kimchi refrigerator according to claim 2, wherein the reference temperature is 10 ° C. [Claim 3] The Cheonggukjang kimchi refrigerator according to claim 2, wherein the reference temperature can be arbitrarily set by a user's operation. The method according to claim 3 or 4, wherein in the normal operation, Cheonggukjang kimchi refrigerator, characterized in that the heating means is operated in accordance with the operation course by the user selected. The method of claim 3 or 4, wherein in the winter operation, Cheonggukjang kimchi refrigerator characterized in that the heating means is operated for a time increased by 20% than the operating time of the heating means according to the operation course of the user's choice.

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