KR101429600B1 - Method for controlling of open showcase - Google Patents

Abstract

An open showcase control device and its method are disclosed in which an open showcase is used for a refrigerator or a hot shop or a cold / warm shop depending on a product to be displayed, and a separate control of a shelf is possible when using a cold / do.
The disclosed open showcase controller includes a refrigerator for generating cold air for refrigeration; Heating means for generating a heat source for heating; A function selecting unit for selecting a function for selecting either the refrigerator or the heating or cold / heating combination and a shelf for controlling the individual shelves; A function selecting unit for selecting the warming and lunch box shelves and selecting the operation target shelves for controlling the shelves individually when using the warm / lunch box shelves; A compartment shelf sensing unit for sensing the combined use of the cooling / heating; And a control unit for controlling the refrigerator, the heating unit, and the heating / cooling unit by operating the refrigerator unit and the heating unit according to the selection function of the function selection unit and the detection result of the compartment shelf of the compartment shelf sensing unit.

Description

Method for controlling open showcase

The present invention relates to an open showcase, and more particularly, to an open showcase in which an open showcase is used for a cold store or a hot store or a cold / warm store depending on a product to be displayed, To an open showcase control method in which individual control of a shelf is possible.

In general, Open Showcase is installed to store and sell products in department store, large discount store, convenience store, supermarket, etc. in order to display the products freshly. So that the purchaser can increase the desire to purchase the product.

Such an open showcase utilizes a refrigeration cycle in which a refrigerating operation is repeated by continuously repeating changes in state of expansion (endothermic) and compression (heat radiation).

In the case of open showcase, it is divided into various forms according to the purpose. That is, it is roughly divided into flat face type, multistage face type, and open type depending on objects to be displayed such as vegetables, drinks, instant foods such as kimbab and lunch boxes.

In the open showcase, the front of which is opened, a cooling device for performing a refrigeration cycle and a machine room in which various electrical products are installed are provided at the lower part of the main body case opened at the front. A duct for supplying cool air to the wall and the cold air discharge opening is formed while circulating, and a shelf for displaying merchandise is provided inside the case.

Conventional open showcase having such a configuration is disclosed in Korean Utility Model Registration Utility Model Registration No. 20-0441200 (published on July 31, 2008) (design name: apparatus for attaching a price tag for a shelf for a showcase) Lt; / RTI >

The present invention provides a price tag attaching apparatus for a shelf for a showcase which is simple in structure and simple to assemble but firmly fixed in a price tag. It is an object of the present invention to provide a price tag attaching apparatus for a showcase, It is possible to prevent an unnecessary structure other than the price tag from being exposed to the outside, and the appearance of the showcase is further improved.

1. Registration of the Korean Intellectual Property Office Registration No. 20-0441200 (Name of Design: Apparatus for attaching a price tag for shelves for showcase)

However, the above-described prior art has a drawback in that it is suitable for products requiring cold air, and is not suitable for display and storage of products requiring warm storage.

For example, when a kimbap, a lunch box, or a hamburger is displayed on a showcase such as a conventional art, it is inconvenient to use another heating device (microwave oven, etc.) when consuming it.

In addition, in order to store warm beverages and the like, a dedicated warm-ware is generally used. In this case, a dedicated warm-ware for warm beverages and a showcase for storing foods requiring cold are separately installed. There is a disadvantage that the display space of the product to be sold becomes narrow and the economic burden is increased due to the purchase of the two products.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above-described problems occurring in the prior art and the related art problems caused by the simultaneous purchase of a showcase and a warm-

SUMMARY OF THE INVENTION It is an object of the present invention to provide an open showcase control method in which an open showcase can be used for both a cold store or a hot shop or a cold shop or a cold shop depending on a product to be displayed.

Another object of the present invention is to provide an open showcase control method that enables individual control of each shelf when using a cold / warm spot or a warm shop, and at the same time, saving power.

Another object of the present invention is to provide an open showcase control system that displays the current operating state when the open showcase is used for a refrigerator or a hot shop or a cold / Method.

Another object of the present invention is to provide an open showcase control method that displays a shelf used when an open showcase is used as a cold / warm spot or as a warm-up shop, and provides convenience to a user when displaying a product.

According to another aspect of the present invention, there is provided an open showcase control device,

A refrigerator for generating cold air for refrigeration;

Heating means for generating a heat source for heating;

The shelves for function selection and shelf individual control for the refrigeration or warming or the cold / warming are selected, the shelves for the warming and lunch boxes are selected, and the shelves for the individual control of the shelves are selected ;

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A compartment shelf detecting unit for detecting the combination of the cold / warm-up;

And a control unit for controlling the refrigerator, the heating unit, and the heating / cooling unit by operating the refrigerator unit and the heating unit according to a selection function of the function selection unit and a detection result of the compartment shelf of the compartment shelf sensing unit.

Further, in the open showcase control device according to the present invention,

And a heater driving unit for driving the heating unit under the control of the control unit.

Further, in the open showcase control device according to the present invention,

The refrigerator further includes a temperature sensing unit for sensing a refrigeration temperature during refrigeration and providing the refrigeration temperature to the control unit, and detecting the temperature during the warming period and providing the sensing unit to the control unit.

Further, in the open showcase control device according to the present invention,

Further comprising a display unit for visually displaying the operation status of the open showcase under the control of the control unit and displaying only the shelves operating in the warm or cold / warm running mode.

In this case,

The heating means is driven when the refrigerator is selected, and when the user selects the operation subject shelf, only the heater provided on the operation target shelf in the heating means is selectively operated, and when the refrigerator is selected, And the heating means is simultaneously driven. When the user selects the operation target shelf only for the heating room, only the heater provided on the operation target shelf in the heating means is selectively operated.

In this case,

If the user selects the operation target shelf while controlling the display of the refrigeration operation during refrigeration operation and controls the display of temperature operation during warm operation, Is controlled.

According to another aspect of the present invention, there is provided an open showcase control method,

(a) searching for a function selected by the user, controlling the display of the refrigeration operation upon selection of the refrigerator, detecting the refrigeration temperature after driving the refrigerator, and controlling the refrigeration temperature by comparing with the set temperature;

(b) when the function selected by the user is a warmth selection, it is determined whether or not the individual warmth is selected; if the individual warmth is not selected, the display of the warmth operation is controlled; Controlling the warming temperature through comparison with the temperature;

(c) when the function selected by the user is a cold / warm-up combination, it is determined whether or not the individual warm-up is selected, and when the individual warm-up is not selected, the display of the cold / warm- And simultaneously controlling the cold storage and the warm storage by simultaneously driving them.

Further, in the open showcase control method according to the present invention,

(d) when the individual warmth is selected in the step (b), the operation state display of the selected shelf is controlled, and only the heating means of the operation subject shelf is driven, and then the ambient temperature of the operation subject shelf is detected, And controlling the individual warmths through the heating means.

Further, in the open showcase control method according to the present invention,

(e) when the individual warmth is selected in the step (c), the operation state display of the selected shelf is controlled, and only the heating means of the operation target shelf is driven while the refrigerator is driven, and the refrigeration temperature and the ambient temperature And controlling refrigeration and individual warming through comparison with the set temperature.

In the above step (a)

(a-1) displaying refrigeration operation and driving the refrigeration unit to perform refrigeration;

(a-2) detecting a refrigerating temperature;

(a-3) controlling the refrigerating temperature by comparing the detected refrigerating temperature with a predetermined set temperature, and controlling the solenoid valve to control the flow of the refrigerant based on the comparison result.

In the step (b)

(b-1) displaying a warm-up operation and driving the entire heating means to perform a warm-up function;

(b-2) detecting a warm-up temperature;

(b-3) comparing the detected warmth temperature with a predetermined set temperature, and controlling the heating temperature by controlling the driving of the heating means based on whether the detected warmth temperature is large or small.

In the above step (c)

(c-1) displaying the selected operation target shelf and driving the heating means of the operation target shelf to control only the operation target shelf with the warm-up function;

(c-2) detecting the temperature of the operation target shelf;

(c-3) comparing the detected temperature with a predetermined set temperature, and controlling the heating temperature by controlling the driving of the heating means corresponding to the operation target shelf based on whether the detected temperature is larger or smaller.

Wherein the step (d)

(d-1) displaying refrigeration / warming-up operation, driving both the refrigeration unit and the heating unit to simultaneously perform refrigeration and heating;

(d-2) detecting refrigeration and hot temperature;

(d-3) comparing the detected refrigeration temperature and the warming temperature with the predetermined first and second set temperatures, respectively, and controlling the refrigeration temperature and the warming temperature based on the comparison.

Wherein the step (e)

(e-1) displaying the combined refrigeration / warm-up operation and simultaneously displaying the operation target shelf;

(e-2) simultaneously performing the cold storage and the warm storage by driving the refrigeration unit and the heating means of the operation target shelf;

(e-2) detecting refrigeration and heating temperature;

(e-3) comparing the detected refrigeration temperature and the warming temperature with the predetermined first and second preset temperatures, respectively, and controlling the refrigeration temperature and the warming temperature based on the comparison.

According to the present invention, there is an advantage that one open showcase can be used as a refrigerator, a warm-up shop, or a cold / warm shop depending on a product to be displayed.

In addition, according to the present invention, it is possible to individually control each shelf when using a refrigerator or a hot-store or when using a warm-up shop, thereby saving a power saving function.

In addition, according to the present invention, when the open showcase is used for a refrigerator, a warm shop, or a cold / warm shop, the present operation status is displayed to allow the user to easily recognize the operating status of the open showcase.

Further, according to the present invention, shelves used when the open showcase is used as a refrigerator / warm-up shop or as a warm-up display are displayed, thereby providing convenience to the user at the time of displaying the merchandise.

1 is a perspective view of an open showcase to which the present invention is applied,
Fig. 2 is a side sectional view of the open showcase of Fig. 1,
3 is a block diagram of an open showcase control apparatus according to the present invention,
4 is a flowchart illustrating an open showcase control method according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 1 is a perspective view of an open showcase to which the present invention is applied, and FIG. 2 is a side sectional view of the open showcase of FIG.

As shown in FIGS. 1 and 2, an open showcase 1 to which a present invention for displaying and storing goods is applied includes a body case 10 having a box shape in which a front is opened to facilitate storage of a product to be displayed, A refrigerating unit 20 for supplying cold air with a device for performing a normal refrigeration cycle and a variety of electric devices installed in the lower part of the main body case 10, A plurality of shelves 40 which are detachably connected to both sides of the inside of the main body case 10 and are connected to the main body case 10 so as to store the products to be displayed, And a partition shelf 60 for dividing the entire space into a cold storage room and a warm storage room for use in combination with a refrigerator /

Here, the shelves 40 are composed of a plurality of units, and the heating means 50 preferably uses a hot wire heater.

When the open showcase to which the present invention configured as described above is to be used for refrigeration, the refrigerating function is performed by the cold air generated by turning off the heating means 50 and driving the refrigerating unit 20.

In addition, when the open showcase to which the present invention is applied is to be used as a warming cloth, the refrigerator 20 is turned off and the heating means 50 is driven to perform a warming function.

In addition, when the user selects the operation target shelf, the user only drives the heating means provided on the operation target shelf to generate a heat source, so that the operation target shelf and the space around the operation target shelf perform a warm- do.

When the open showcase to which the present invention is applied is used for both the cold storage and the warm storage, the upper part of the entire space is divided into a warming room and a lower part by a partition shelf 60, The heating means 50 is simultaneously driven to simultaneously use the cooling and warming functions.

As is well known, the present invention is advantageous in that one open showcase can use a refrigerator function, a warm-up function, and a cold / warm-compatible function.

Hereinafter, the detailed operation of the refrigerator or the heating or the combined use of the refrigerator / warm-up or the partial warm-up (the hot-spot operating only the selected shelf) will be described in detail below.

3 is a configuration diagram of an open showcase control apparatus according to the present invention and includes a function selection unit 101, a memory 102, a power supply unit 103, a control unit 104, a refrigeration unit 20, a heater driving unit 105, A temperature sensing unit 106, a display unit 107, a heating means 50, and a compartment lathe sensing unit 108.

The refrigerating unit 20 serves to generate cold air for refrigeration, and includes an evaporator, a blowing fan, a solenoid valve, and the like for a normal refrigeration cycle.

The heating means 50 serves to generate a heat source for warming up, and it is preferable to use a hot wire heater or other heater.

The function selection unit 101 is a key input device for selecting a function for selecting either the refrigerator, the warming or the cold / warm, and the shelf for the individual control of the shelf. The function selection unit 101 includes a selection switch for selecting a refrigerator, a warm or a cold / warm, a shelf selection key for selecting an individual shelf, a temperature setting key for setting a refrigeration / warming temperature, and the like.

The power supply unit 103 not only supplies driving power to the control unit 104 but also supplies driving power to the respective components requiring power supply. The memory 102 is a control program for controlling the refrigeration control and the heating control It acts as a built-in storage device.

The heater driving unit 105 drives the heating means 50 under the control of the control unit 104. The temperature sensing unit 106 detects the refrigeration temperature during refrigeration and provides the detected temperature to the control unit 104 And provides the detected temperature to the control unit 104. The control unit 104 also detects the refrigeration temperature and the warming temperature during the cold / warm-up operation, and provides the detected temperature to the control unit 104. [ The temperature sensing unit 106 preferably uses a temperature sensor for temperature sensing, and is preferably installed at a position where the refrigeration temperature or the warming temperature can be detected optimally. It is also desirable to provide a temperature sensor on each shelf to detect the temperature of each shelf and surrounding space for individual shelf control.

The display unit 107 visually displays the operation status of the open showcase under the control of the control unit 104 and displays only the shelves operating during the cold / warm-up operation or the warm-up operation. The display unit 107 preferably includes a light emitting diode, and is provided near an indicator that distinguishes between cold storage and warm or cold / warm storage so as to display a combined refrigerated or hot or cold / hot storage operation status, It is desirable to indicate the operation status of the shelf during the combined cold / warm-up operation or in the warm-up operation.

The control unit 104 selectively operates the refrigerator unit 20 and the heating unit 50 according to a function selected by the function selection unit 101 for either the cold storage function or the warm / cold storage function. A microprocessor, a controller, and a central processing unit.

The controller 104 drives the refrigerator 20 when the refrigerator is selected and drives the heating device 50 when the refrigerator is selected. When the user selects the shelf to be operated, the controller 104 controls the heating device 50 The heating unit 50 simultaneously drives the refrigerator unit 20 and the heating unit 50 when the combined use of the cold / warm one is selected, and the heating unit 50 operates only the heater provided on the operation target shelf selected by the user . In addition, the control unit 104 controls the refrigeration operation display at the time of refrigerating operation, the display of the warming-up operation at the time of warming operation, and the display of the combined operation of cooling and heating at the time of cold / warm- The operation display of the operation target shelf is controlled.

When the user selects a specific operation state through the function selection unit 101 in order to use the open showcase as a refrigerator, a warm-up shop, or a cold / warm-up operation, 104) is aware of this and controls the open showcase as either cold storage or hot storage or cold / warm storage.

For example, when the user selects refrigeration, the control unit 104 lights the light emitting diode indicating the refrigeration operation through the display unit 107 so that the user can recognize that the open showcase is currently operating in the refrigerated state, (50) is turned off and the refrigerator (20) is started to generate cold air.

When the refrigerator 20 starts to generate cool air, the temperature sensor of the temperature sensor 106 detects the refrigerator temperature and transmits the refrigerator temperature to the controller 104. The controller 104 controls the temperature of the refrigerant, The user compares the set temperature set through the function selection unit 101, and controls the refrigeration operation by on / off controlling the solenoid valve that controls the flow of the refrigerant according to whether the set temperature is large or small. Here, the method of controlling the refrigeration operation by comparing the detected temperature and the set temperature is the same as the method of controlling the temperature appropriately in a general open showcase, and therefore, a detailed description thereof will be omitted.

As is known, when the open showcase is operated in the refrigerator, the user can always recognize the operation mode of the open showcase through the display unit 107, thereby making it possible to prevent a mistake in displaying the product on the shelf of the open showcase.

On the other hand, when the user selects the operation mode of the open showcase as the warm-up mode, the control unit 104 lights the light-emitting diode indicating the warm-up operation through the display unit 107 to inform the user that the open showcase is in the warm- . At this time, the user can select only the shelf to be used through the function selection unit 101.

If the shelf to be used is not selected in the selection of the warming function, the controller 104 stops the operation of the refrigerator 20 and drives the heater driving unit 105 to drive the heater of all the heating means 50 . Each of the shelves is provided with a heater as a heating means.

The heating means 50 operates to generate a heat source to generate a heat source, and the product displayed on the shelf is maintained in a warm state by the generated heat source.

When the heater of the heating means 50 is driven to generate a heat source, the temperature sensor of the temperature sensing unit 106 detects the warming temperature and transmits it to the control unit 104. The control unit 104 controls the temperature And the set temperature set by the user through the function selection unit 101, and controls the warming operation by controlling the heating of the heating unit 50 on or off according to whether the set temperature is large or small. Here, the method of controlling the warm-up operation by comparing the detected temperature with the set temperature is generally the same as the temperature control method applied to the heating apparatus that controls the operation of the heater according to the temperature, so a detailed description thereof will be omitted.

As is known, when the open showcase is operated as a hot spot, the user can always recognize the operation mode of the open showcase through the display unit 107, so that mistakes can be prevented in displaying the product on the shelf of the open showcase. For example, it is possible to prevent a mistake of displaying a product requiring cold air on a shelf while the open showcase is operated by a warm-up function.

In addition, in the present invention, when the open showcase is operated in a warm-up mode, the user can select a shelf to be driven through the function selection unit 101. [ If a shelf to be driven is selected through the function selection unit 101, the control unit 104 turns on a light emitting diode for indicating the warming operation through the display unit 107, and simultaneously displays a light emitting diode So that the open showcase is now operated in a warm state, and the user can easily recognize which shelf is operating only. For example, when a user selects a shelf to be driven, the light emitting diode is used to inform the operation target shelf.

The control unit 104 stops driving the refrigerator unit 20 and drives the heater driving unit 105 to drive only the heater included in the heating means 50 of the operation target shelf. Each shelf is provided with a heater as a heating means. Here, it is assumed that the control unit 104 can distinguish the operation target shelves based on the operation target classification information stored in the memory 102. [

The heating unit 50 provided on the operation target shelf operates under the control of the control unit 104 to generate a heat source and the product displayed on the operation target shelf is kept warm by the generated heat source.

When the heater of the heating means 50 of the operation target shelf is driven to generate a heat source, the temperature sensor provided on the operation target shelf detects the temperature of the shelf and transmits the detected temperature to the control unit 104, The control unit 100 compares the detected temperature to be transmitted with the set temperature set by the user through the function selection unit 101 and controls the heating means 50 of the operation target shelves to be turned on or off individually according to the magnitude of the detected temperature, Thereby controlling the operation. Here, even if the heating means of the operation target shelf is driven at the same value at the same time, the influence of the outside air is differently applied depending on the amount of the commodity displayed on the shelf and the position of the shelf so that the temperature of each operation target shelf may be different . Therefore, the control unit 104 compares the detected temperatures of the operation target shelves one by one, one by one, based on the control program stored in the memory 102, and individually controls the heating means provided on the operation target shelf .

Here, the method of controlling the warm-up operation by comparing the detected temperature with the set temperature is performed in the same manner as the temperature control method applied to the heating device that controls the operation of the heater according to the temperature, .

In addition, when the user desires to operate the open showcase to which the present invention is applied as combined with the cold / warm, the user selects the combination of cold and warm through the function selection unit 101, and inserts the divided shelf 60 at a predetermined position. The compartment shelf detection unit 108 senses this and transmits it to the control unit 104.

The control unit 104 detects the compartment shelf 60 by the compartment shelf sensing unit 108 and selects the cooling / heating combination mode through the display unit 107 when the combined cooling / The user is informed that the current open showcase is operating in the combined cold / warm condition by turning on a light emitting diode indicating operation. At this time, the user can select the shelf to be used through the function selection unit 101. Here, the operation target shelves are limited to the shelves provided in the warm room.

In this case, when the shelf to be used is selected, the control unit 104 simultaneously drives the refrigerator unit 20 and the heater driving unit 105 to operate the upper part of the open showcase as a warm shop, Will be operated as a refrigerated room. Here, the control of the temperature of the warming room and the control of the refrigeration temperature of the refrigerating chamber are performed in the same manner as the control of the temperature of the warming-temperature and the control of the temperature of the refrigerator, so a detailed description thereof will be omitted.

In addition, when a shelf to be used in selecting the cold / warm-up operation function is selected, the control unit 104 turns on the light-emitting diode for indicating both the cold / warm-up operation and the operation target shelf through the display unit 107, / It is operated in combination with the warmth, and the user recognizes which shelf is to be operated in the warm room.

The controller 104 drives the refrigerator unit 20 to drive only the heating means included in the operation target shelf selected by the user through the heater driving unit 105 to perform the combined heating / do. Hereinafter, the refrigerator compartment temperature control and the warming-up temperature control are performed in the same manner as the warmth temperature control and the cold-storage temperature control described above, so a detailed description will be omitted in order to avoid redundant description.

In the present invention, when an open showcase is controlled to be combined with a cold / hot spot or a hot spot, a specific shelf can be selected and controlled individually, so that only a few heating means of the shelf can be selectively driven when there are few products to be displayed, Power consumption can be prevented.

FIG. 4 is a flowchart illustrating an open showcase control method according to the present invention. In FIG. 4, S indicates a step of controlling an open showcase by software in the control unit 104 of FIG.

As shown in FIG. 4, the open showcase control method according to the present invention includes: (a) searching for a function selected by a user, controlling display of the refrigeration operation upon selection of the refrigerator, driving the refrigerator, (S101 to S105) controlling the refrigeration temperature by comparing with the detected temperature; (b) when the function selected by the user is a warmth selection, it is determined whether or not the individual warmth is selected; if the individual warmth is not selected, the display of the warmth operation is controlled; (S106, S108 to S111) of controlling the warming temperature through comparison with the temperature; (c) when the function selected by the user is a cold / warm-up combination, it is determined whether or not the individual warm-up is selected, and when the individual warm-up is not selected, the display of the cold / warm- (S116 to S121) simultaneously controlling the cold storage and the warm storage by driving them simultaneously; (d) when the individual warmth is selected in the step (b), the operation state display of the selected shelf is controlled, and only the heating means of the operation subject shelf is driven, and then the ambient temperature of the operation subject shelf is detected, (S107, S112 to S115) for controlling the individual warmths through the steps of: (e) when the individual warmth is selected in the step (c), the operation state display of the selected shelf is controlled, and only the heating means of the operation target shelf is driven while the refrigerator is driven, and the refrigeration temperature and the ambient temperature (S117, S122, S119 to S121) of controlling refrigeration and individual warming through comparison with the set temperature.

In the case where the individual warmth is selected in the combined cold / warm-up operation, the control is performed in the same process as the part (S119 to S121) of the step in which the individual warmth is not selected.

The open showcase control method according to the present invention as described above confirms whether the operating environment of the open showcase selected by the user in step S101 is cold.

If the user selects refrigeration, the flow goes to step S102 to control the display unit 107 to display the refrigerating operation status by lighting the light emitting diode indicating the refrigeration operation.

In the refrigerating operation state, the flow advances to step S103 to drive the refrigerating unit 20 to perform refrigeration, detect the refrigerating temperature in step S104, compare the refrigerating temperature detected in step S105 with the set temperature set by the user, The refrigeration operation is performed by controlling the solenoid valve controlling the flow of the refrigerant to control the refrigerating temperature appropriately.

On the other hand, if it is determined in step S101 that the user has not selected refrigeration, the flow advances to step S106 to check whether the user has selected the warm-up operation. If the user selects the warming-up operation as a result of the check, the flow goes to step S107 to confirm whether or not the individual warming-up is selected. For example, it is confirmed whether or not the user has selected the operation target shelf.

If the user does not select a particular shelf, the operation goes to step S108 to indicate that the operation state of the open showcase is in the warm state through the display unit 107 in order to operate the entire open showcase in warm- And drives the heating means 50 provided in all the shelves to perform a warming function.

Thereafter, the process goes to step S110 to detect the warming temperature, compares the detected warming temperature with the predetermined set temperature in step S111, and controls the driving of the heating device based on whether the warming temperature is detected.

If it is determined in step S107 that the user selects the individual warmth, that is, if the operation target shelf is selected, the process goes to step S112 to turn on the warm display light emitting diode through the display unit 107 to determine that the open showcase is in the warm At the same time, only the light emitting diodes provided on the shelves selected by the user are lit, thereby allowing the user to easily recognize the shelves driven by the warmth. In this case, the user can easily recognize the operation target shelf by turning on the light emitting diodes provided on the respective shelves, thereby making it possible to prevent a mistake when displaying the product later. For example, it is possible to prevent the merchandise from being displayed on the shelf where the heater does not operate.

Thereafter, in step S113, only the heating means of the operation target shelf is driven to control only the operation target shelf with the warming function. In step S114, the temperature of the operation target shelf is detected. In step S115, The warming temperature can be appropriately controlled by controlling the driving of the heating means corresponding to the operation target shelves based on the magnitude of the comparison.

If the user does not select the warming-up operation as a result of the check in step S106, the flow goes to step S116 to confirm whether the user has selected the cold / warm-up operation. If it is determined that the user has selected the cold / warm-up operation, the flow advances to step S117 to check if the user has selected the individual warmth. Here, the individual warmth means that the user selects only a part of the shelf of the warm room as the operation shelf. In the above case, when the user selects the cold / warm-up operation, the entire space of the open showcase is divided into the warming room and the cold storage room by the partition shelf 60.

If the user does not select the operation target shelf, the process proceeds to step S118 to indicate that the operation state of the open showcase is the combined cold / warm-up operation state through the display unit 107. The flow advances to step S119 to move the refrigerating unit 20 The heating means 50 provided in all the shelves are simultaneously driven to perform the warming function.

Thereafter, the flow goes to step S120 to detect the refrigeration temperature and the warming temperature. The refrigeration and warming temperature detected in step S121 and the first and second preset temperatures (the first set temperature is the temperature for refrigeration control, the second set temperature (Temperature for warm-up control), and controls the operation of the refrigerator 20 and the heating means 50 by suitably controlling the refrigerator temperature and the warm-up temperature so as to perform both the cold / warm-up operation .

If it is determined in step S117 that the user selects the individual warmth, that is, if the operation target shelf is selected, the process goes to step S122 to light up the cold / warm-up display light emitting diodes through the display unit 107, / Warm-up operation state, and at the same time, only the light-emitting diodes provided on the shelves selected by the user are lit, thereby allowing the user to easily recognize the shelves driven by the warm-up. In this case, the user can easily recognize the operation target shelf by turning on the light emitting diodes provided on the respective shelves, thereby making it possible to prevent a mistake when displaying the product later. For example, it is possible to prevent the merchandise from being displayed on the shelf where the heater does not operate.

Thereafter, the process goes to step S119 to detect the refrigeration temperature and the warming temperature. The refrigeration and warming temperature detected in step S121 is compared with the first and second preset temperatures (the first set temperature is the temperature for the refrigeration control, (Temperature for warm-up control), and controls the operation of the refrigerator 20 and the heating means 50 by suitably controlling the refrigerator temperature and the warm-up temperature so as to perform both the cold / warm-up operation .

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims and their equivalents. Of course, such modifications are within the scope of the claims.

10 ... Body case
20 ... Refrigerator
40 ... shelf
50 ... Heating means
60 ... Compartment shelf
101 ... Function selection unit
102 ... Memory
103 ... Power supply
104 ... The control unit
105 ... Heater driver
106 ... The temperature sensing unit
107 ... Display portion
108 ... Compartment shelf sensing unit

Claims (14)

delete delete delete delete delete delete (a) searching for a function selected by the user, controlling the display of the refrigeration operation upon selection of the refrigerator, detecting the refrigeration temperature after driving the refrigerator, and controlling the refrigeration temperature by comparing with the set temperature;
(b) when the function selected by the user is a warmth selection, it is determined whether or not the individual warmth is selected; if the individual warmth is not selected, the display of the warmth operation is controlled; Controlling the warming temperature through comparison with the temperature;
(c) when the function selected by the user is a cold / warm-up combination, it is determined whether or not the individual warm-up is selected, and when the individual warm-up is not selected, the display of the cold / warm- And simultaneously controlling the refrigeration and the heating;
The step (a)
(a-1) displaying refrigeration operation and driving the refrigeration unit to perform refrigeration;
(a-2) detecting a refrigerating temperature;
(a-3) controlling the refrigeration temperature by controlling the solenoid valve for controlling the flow of the refrigerant by comparing the detected refrigeration temperature with a predetermined set temperature, .
The method of claim 7,
(d) when the individual warmth is selected in the step (b), the operation state display of the selected shelf is controlled, and only the heating means of the operation subject shelf is driven, and then the ambient temperature of the operation subject shelf is detected, Further comprising the step of controlling the individual warmth through the open showcase control method.
The method of claim 7,
(e) when the individual warmth is selected in the step (c), the operation state display of the selected shelf is controlled, and only the heating means of the operation target shelf is driven while the refrigerator is driven, and the refrigeration temperature and the ambient temperature And controlling the refrigerator and the individual warmth through comparison with the set temperature.
delete The method of claim 7, wherein the step (b)
(b-1) displaying a warm-up operation and driving the entire heating means to perform a warm-up function;
(b-2) detecting a warm-up temperature;
(b-3) comparing the detected warmth temperature with a predetermined set temperature, and controlling the warming temperature by controlling driving of the heating means based on whether the detected warmth temperature is large or small.
delete 10. The method of claim 8, wherein step (d)
(d-1) displaying refrigeration / warming-up operation, driving both the refrigeration unit and the heating unit to simultaneously perform refrigeration and heating;
(d-2) detecting refrigeration and hot temperature;
(d-3) comparing the detected refrigeration temperature and the warming temperature with the predetermined first and second set temperatures, respectively, and controlling the refrigeration temperature and the warming temperature based on the comparison Way.
The method of claim 9, wherein the step (e)
(e-1) displaying the combined refrigeration / warm-up operation and simultaneously displaying the operation target shelf;
(e-2) simultaneously performing the cold storage and the warm storage by driving the refrigeration unit and the heating means of the operation target shelf;
(e-2) detecting refrigeration and heating temperature;
(e-3) comparing the detected refrigeration temperature and the warming temperature with predetermined first and second preset temperatures, respectively, and controlling the refrigeration temperature and the warming temperature based on the comparison Way.

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