KR20060096534A - A refrigerator door with sub-pcb - Google Patents

Abstract

The present invention relates to a refrigerating chamber door having a sub-PC ratio in which a sub-printed circuit board (Sub-PCB) controlling a plurality of electrical appliances mounted in the refrigerating chamber door is mounted on one side of the refrigerating chamber door.

The refrigerating chamber door with the sub-PC ratio according to the present invention is formed on one side of the rear surface of the refrigerating chamber door 220 in the refrigerating chamber door 220 that selectively shields the opened front surface of the refrigerating chamber 200. Ice making room 500 which is a space where work is performed; Ice making means (600) provided inside the ice making chamber (500) to make and store ice; A dispenser 400 formed at one side of the front surface of the refrigerating chamber door 520 to allow the ice made in the ice making chamber 500 to be taken out to the outside; It is provided on one side of the refrigerating chamber door 220, and comprises a sub-PCB (Sub-PCB, 460) for controlling the operation of at least one of the ice making means 600 and the dispenser 400. According to this invention which has such a structure, there exists an advantage that an assembly operation becomes easy.

Refrigerator, fridge door, ice machine, sub-PC

Description

Fridge door with sub-PCB {A refrigerator door with sub-PCB}

1 is a front view showing a state in which a door of a typical refrigerator is opened.

Figure 2 is a front view showing the appearance of a refrigerator employing a refrigerator compartment door with a sub-PC ratio according to the present invention.

Figure 3 is a perspective view showing a state in which the door of the refrigerator employing the refrigerator compartment door equipped with the sub-PC ratio according to the present invention is opened.

Figure 4 is a partial perspective view showing the interior of the ice making chamber, which is a main component of the refrigerating chamber door with a sub-PC ratio according to the present invention.

Figure 5 is an exploded perspective view showing the mounting appearance of the sub-PC ratio, which is a main component of the refrigerating chamber door provided with the sub-PC ratio according to the present invention.

Explanation of symbols on the main parts of the drawings

100. Main body 110. Wire outlet

200. Refrigerator 220. Refrigerator door

222. Wire Entry 240. Hinge

300. Freezer compartment 320. Freezer compartment door

340. Storage Box 360. Freezer Evaporator

380. Cold Duct 400. Dispenser

420. Dispenser base 440. Dispenser cover

442. Outlet 460. Sub-PC Ratio

480. Display 490. Operation Buttons

500. Ice making room 520. Ice making room door

540. Outlet 600. Ice machine

620. Ice makers 640. Ice banks

642.Storage Case 644. Icebreaker

C. Wires

The present invention relates to a refrigerator, and more particularly, to a refrigerator door having a sub-PCB mounted on one side of a refrigerating chamber door for controlling a plurality of electrical appliances mounted on the refrigerating chamber door.

In general, a refrigerator is a device for low temperature storage of food, and stores the food by freezing or refrigerating according to the state of the food to be stored. The cold air supplied to the inside of the refrigerator is generated by the heat exchange action of the refrigerant, is continuously supplied into the refrigerator while repeatedly performing a cycle of compression, condensation, expansion, and evaporation, and the supplied refrigerant is supplied by convection. It is evenly distributed inside the refrigerator to store food in the refrigerator at a desired temperature.

FIG. 1 is a front view showing a door of a general refrigerator opened, and as shown in these drawings, the main body 10 of the refrigerator is formed in a rectangular parallelepiped shape, and the inner side of the main body 10 is located at an upper side and a lower side, respectively. The refrigerating chamber 20 for refrigerating and storing food and the freezing chamber 30 for freezing are formed by partitioning.

The spaces of the refrigerating chamber 20 and the freezing chamber 30 each form an independent space, and the front surface is formed to be opened. The front surface of the opened main body is selectively opened and closed by doors 40 and 50, and the doors 40 and 50 have a refrigerating chamber door 40 that shields the refrigerating chamber 20 above the main body 10, and a main body ( 10) is composed of a freezer compartment door 50 that shields the freezer compartment 30 at the bottom.

The refrigerating chamber door 40 is formed at both left and right sides, and is coupled by the main body 10 and the hinge 42 so that both ends thereof are fixed to the main body 10 and rotated. Accordingly, the user can selectively open and close the opened front surface of the refrigerating compartment 20 by rotating the refrigerating compartment door 40 to the left / right.

Although the hinge 42 is not illustrated as the only part to which the refrigerating chamber door 40 and the main body 10 are connected, wires inside the main body 10 are connected to the refrigerating chamber door 40 through the hinge 42. It will go inside. Therefore, it is preferable that a predetermined passage is formed at one side of the upper end of the refrigerating chamber door 40 in which the hinge 42 is mounted.

Foods of various sizes and states are stored in the refrigerating compartment 20 and the refrigerating compartment door 40, and are stored in the refrigerating compartment 20 and the inner surface of the refrigerating compartment door 40 for their storage. Drawers, baskets, shelves, etc. are provided for storing food to suit the characteristics of the food.

The lower part of the main body 10, that is, the opened front surface of the freezing compartment 20 is selectively shielded by the freezing compartment door 50. The freezer compartment door 50 is formed to selectively shield the opened front surface of the freezer compartment 30 while sliding forward / rearward.

An upper portion of the freezer compartment door 50 is provided with a freezer compartment handle 52 so as to protrude forward so that the user can easily grip it. In addition, a plurality of drawers and baskets are provided inside the freezing compartment 30 to separate and store various foods, and an ice maker 60 is provided at one side of the freezing compartment 30 to make ice.

In the refrigerator having the structure as described above, an ice maker 60 for freezing ice is provided in the freezer compartment 30 under the main body 10 so that the user opens the freezer compartment 50 to bow out the ice and bows the waist to make the ice maker ( There is a problem that causes inconvenience in use, such as the need to operate 60).

In order to solve this problem, the ice bank 60 is provided in the refrigerating chamber 20 and an ice bank for storing ice in the refrigerating chamber door 40 at a position corresponding to the position where the ice maker 60 is installed. Refrigerators having a structure in which they are mounted are being studied.

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

In order to make ice with the ice maker 60 and the ice bank in the refrigerating chamber door 40, a separate evaporator and a cold air supply fan for supplying cold air to the ice maker 60 should be provided.

Therefore, the increase in the number of parts and the increase in the number of work, the problem of product productivity as well as the price rises. In addition, there is a problem that the storage space of the refrigerating chamber 20 or the refrigerating chamber door 40 is reduced by the installation of additional components.

When the refrigerator compartment door 40 includes a plurality of electric devices and components such as an ice maker 60, an ice bank, a dispenser (not shown) and a display (not shown), the refrigerator body ( 10) From the main PCB (not shown) mounted on one side, a number of wires should be connected to these electrical components.

In addition, the plurality of electric wires may enter the refrigerating chamber door 40 through a predetermined space provided inside the hinge 42, which is the only part connecting the refrigerating chamber door 40 and the main body 10. The size of the space is bound to be limited by the size of the hinge.

In addition, since a plurality of electric wires are brought into the refrigerating chamber door 40 to be connected to a variety of electrical components, the connection work with various electrical components provided in the refrigerating chamber door 40 becomes difficult, and thus the workability is inferior. have.

An object of the present invention is to solve the problems of the prior art as described above, to provide a refrigerating chamber door having a sub-PC ratio having an ice making chamber for making and storing ice on one side of the refrigerator door.

Another object of the present invention is to provide a refrigerating chamber door in which a sub fish for controlling a plurality of electrical appliances mounted in the refrigerating chamber door is provided with a sub fish dish mounted on one side of the refrigerating chamber door.

A refrigerator compartment door provided with a sub-PCB according to the present invention for achieving the above object is formed in one side of the rear side of the refrigerator compartment door in a refrigerator compartment door that selectively shields an opened front surface of the refrigerator compartment. An ice making room, which is a space in which ice making is performed; Ice making means provided inside the ice making chamber and making and storing ice; A dispenser formed at one side of the front side of the refrigerating chamber door to allow the ice made in the ice making chamber to be taken out; Is provided on one side of the refrigerator door, and comprises a sub-PCB (Sub-PCB) for controlling the operation of at least one of the ice making means and the dispenser.

The ice making means is mounted on one side of the ice making chamber, the ice making machine for making ice; It is installed below the ice maker, and comprises an ice bank for storing and transporting the ice made in the ice maker.

The dispenser is formed in the front of the refrigerating chamber door, the dispenser base for forming a space so that the user can easily take out water or ice; Is formed to shield a portion of the front surface of the dispenser base, and comprises a dispenser cover to form a front appearance of the dispenser.

The sub-PC ratio is mounted on one side of the dispenser base.

One side of the dispenser is further provided with a display indicating the operating state of the refrigerator and the dispenser.

 According to the present invention having such a configuration, there is an effect of improving the user's ease of use, facilitating the assembling work of the product and improving productivity.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the refrigerator door equipped with a sub-PCB according to the present invention having the configuration as described above will be described in detail.

Figure 2 is a front view showing the appearance of a refrigerator employing a refrigerator compartment door with a sub-PC in accordance with the present invention, Figure 3 is a view of the door of the refrigerator employing the refrigerator compartment door with a sub-PC in accordance with the present invention is opened. As shown in the figure, as shown in the drawing, the refrigerator main body 100 is formed in a substantially rectangular parallelepiped shape, and the inside of the main body 100 is divided into a refrigerating chamber 200 and a freezing chamber 300.

The refrigerating compartment 200 is formed on the upper portion of the main body 100, and although not shown in detail, there are various types of baskets, shelves and drawers for efficiently storing various kinds of foods in the refrigerating compartment 200. The space of the refrigerating chamber 200 is partitioned and installed.

Therefore, the cold air supplied into the refrigerating compartment 200 is affected by the flow of the basket, the shelf and the drawers, thereby limiting or adjusting the convection of the cold air. The user can store and store foods appropriate to the proper position according to the temperature characteristics due to the difference in the cold air supply.

Meanwhile, the front surface of the refrigerating chamber 200 is formed to be opened, and the front surface of the opened refrigerating chamber 200 is selectively shielded by the refrigerating chamber door 220. The refrigerating chamber door 220 is formed at both left and right sides of the main body 100, and the left and right ends of the refrigerating chamber door 220 are hinged to one side of the main body 100.

Therefore, the refrigerating chamber door 220 is rotated around both ends of the refrigerating chamber door 220 which is hinged, and the opened front surface of the refrigerating chamber 200 is selectively rotated by the refrigerating chamber door 220. Shielded.

On the other hand, the hinge 240 is connected to the refrigerating chamber door 220 so as to be rotatable to the main body 100 is the only part that is connected to the main body 100 and the refrigerating chamber door 220, the wires inside the main body 100 (C) enters the refrigerating chamber door 220 through the hinge 240.

Looking at this in more detail, one end of the upper surface of the refrigerating chamber door 220, that is, the inner end adjacent to the main body 100 is equipped with one end of the hinge 240, the other end of the hinge 240 The left and right edges of the front end of the main body 100 are respectively mounted. Therefore, the refrigerating chamber door 220 installed on the left and right front sides of the main body 100 can be rotated left and right by the hinge 240.

In addition, wire outlets 110 through which electric wires for supplying electric power to electric devices and components provided in the refrigerating chamber door 220 pass through left and right edges of the front end of the main body 100 on which the hinge 240 is mounted. ) Is formed.

In addition, a wire inlet 222 for inserting the wire C is formed at one end of the upper surface of the refrigerating chamber door 220 in which the hinge 240 is mounted, and the wire C extending from the inside of the main body 100. ) Enters into the refrigerating chamber door 220.

The wire inlet 222 may be structurally limited in size due to the shape of the upper surface of the refrigerating chamber door 220, and may be formed in an appropriate size in consideration of the size of the hinge 240.

In addition, one side of the refrigerating chamber door 220 of the refrigerating chamber door 220 of the left / right side has an ice making chamber 500 to be described in detail below and a dispenser 400 for extracting purified water or ice from the outside. One side of the dispenser 400 is further provided with a display 480 and an operation button 490 for temperature control and status display inside the main body 100.

In addition, although not shown, the other side of the refrigerator compartment door 220 in which the dispenser 400 is not installed among the left and right refrigerator compartment doors 220 includes foods frequently taken out of the refrigerator compartment door (such as drinks or alcohol). A groove bar (not shown) may be further installed to allow the product to be taken out from the outside without opening 220.

On the other hand, the freezer compartment 300 is formed below the refrigerating compartment 200, that is, the lower portion of the main body 100, which is a separate space separated from the refrigerating compartment 200. The freezing chamber 300 is a place for freezing fish or meat or foods that require long-term storage, and a drawer or basket for separating and storing the foods stored in the freezing compartment 300 according to size or condition. Is provided.

In addition, a freezing chamber door 320 that shields the inside of the freezing chamber 300 is formed on the front surface of the freezing chamber 300. A lower end of the freezer compartment door 320 is hinged to a lower end of a storage box 340 for storing food, and the storage box 340 is formed to be slidable back and forth, along with the freezer door 320. It is formed to be withdrawn / mouth.

The rear of the freezer compartment 300 is provided with a separate freezer evaporator 360. The freezer compartment evaporator 360 allows the refrigerant inside the freezer compartment evaporator 360 and the air outside the freezer compartment evaporator 360 to exchange heat with each other, thereby absorbing external heat to create cold air. The cold air generated by the freezer compartment evaporator 360 is introduced into the freezer compartment 300 to lower the temperature of the freezer compartment 300.

Some of the cold air generated by the freezer compartment evaporator 360 is introduced into the ice making chamber 500 through the cold air duct 380, and a cold air supply fan (not shown) is provided at one side of the freezing compartment 300. And forced cold air generated by the freezer compartment evaporator 360 to the ice making chamber 500 to be described in detail below through the cold air duct 380.

On the other hand, the cold air duct 380 is provided on the inside of one side wall surface of the refrigerating chamber 200, the wall surface of the refrigerating chamber 200 is filled with a heat insulator by the cold air is transferred through the cold air duct (380) ( 200) it is possible to prevent the change in the temperature inside.

4 is a partial perspective view showing an interior of an ice making chamber which is a main part of a refrigerating chamber door having a sub-PC ratio according to the present invention. As shown in the drawing, the ice making chamber 500 has an opened front surface of the refrigerating chamber 200. It is provided inside any one of the refrigerating chamber doors 220 on both the left and right sides to shield the.

The ice making chamber 500 is a space in which ice making is performed, and the ice making machine 620 is the dispenser 400 so that the ice made in the ice making chamber 500 can be taken out from the outside through the dispenser 400. It will be preferable to be provided above.

The ice making chamber 500 protrudes from the refrigerating chamber door 220 toward the inside of the refrigerating chamber 200, and the inner space of the ice making chamber 500 rotates to one side of the ice making chamber door 520. Selectively shielded by

Therefore, the inside of the ice making chamber 500 forms a separate space from the space of the refrigerating chamber 200. When the refrigerating chamber door 220 is closed, one side of the ice making chamber 500 is It is formed to contact one wall surface of the refrigerating chamber (200).

The ice making chamber 500 is recessed inward, and ice making means 600 is mounted inside the recessed ice making chamber 500 to manufacture and store ice.

The ice making means 600 is provided inside the ice making chamber 500 and is provided under the ice making machine 540 and ice making machine 620 to store the iced ice. Consists of the ice bank 640 for transporting, additional components may be further provided as necessary.

The ice maker 620 is supplied with cold air derived from the freezer compartment evaporator 360 to be described in detail below, and the supplied cold air exchanges heat with water in the ice maker 620 to perform ice making.

The ice bank 640 stores the ice iced in the ice maker 620 and transfers the stored ice to the dispenser 400 so that the ice can be taken out to the dispenser 400 as required by the user. do.

Meanwhile, the ice bank 640 guides the storage case 642 capable of storing the ice produced by the ice maker 620 and the ice stored in the storage case 642 to the outlet connected to the dispenser 400. It consists of the ice-making device 644.

The storage case 642 is formed below the ice maker 620 so as to store the ice stored in the ice maker 620, and is generally formed to have the same width as the left and right widths inside the ice maker 500.

At the bottom of the storage case 642, an ice-making device 644 is provided. The moving device 644 is provided at an inner lower end of the storage case 642, and the center portion of the storage case 642 may be used to more easily guide the ice stored in the storage case 642 to the outlet 540. Is provided.

The moving device 644 generally uses a rotation driving device such as a step motor to guide the ice stored in the storage case 642 to the discharge port by a predetermined number, and is used for the operation of the dispenser 400. It would be desirable to be configured to limit the amount of rotation accordingly.

The ice-breaking device 644 may be formed integrally with the storage case 642, and may be separately formed as necessary to be mounted inside the ice-making chamber 500.

Meanwhile, since cold air supplied from the freezing chamber evaporator 360 provided at one side of the freezing chamber 300 flows into the ice making chamber 500, the inside of the ice making chamber 500 or the ice making chamber 500 is provided. The refrigerating chamber door 220 is not provided with a separate evaporator and a fan for ice making.

FIG. 5 is an exploded perspective view illustrating a mounting appearance of a sub-PCB, which is a main component of a refrigerating-door door having a sub-PC, according to the present invention. Is provided.

The dispenser 400 includes a dispenser base 420 and a dispenser cover 440. The dispenser base 420 forms a shape inside the dispenser 400, and is recessed by a predetermined depth from the front of the refrigerating chamber door 220 to the rear.

The dispenser base 420 is recessed to a predetermined size and depth so that a user can receive the water or ice while holding a container such as a cup or a bottle when taking out water or ice.

Although not shown, the dispenser base 420 is equipped with a light bulb that illuminates the inside of the dispenser 400, a motor that opens and closes an outlet through which water or ice comes out, and a plurality of electric components such as a solenoid valve and an operation lever.

In addition, an upper portion of the dispenser base 420 may be provided with a display 480 for indicating an operation state of the dispenser 400 or the refrigerator, and a plurality of operation buttons 490 for operating the dispenser 400. This may be further provided. The display 480 and the operation button 490 may be provided in the dispenser cover 440 to be described below as needed.

In addition, one side of the dispenser base 420 controls the operation of a plurality of electrical devices and components provided in the dispenser 400, including an ice maker 620 and an ice bank 640 provided in the ice making chamber 500. Sub-PCB (460) is provided for the purpose.

The sub-PC ratio 460 is for controlling the operation of the electric device and the components provided in the refrigerating chamber door 220, at least among the ice making means 600 and the dispenser 400 provided in the refrigerating chamber door 220. It will control either operation.

That is, the sub-PCB 460 controls all or part of the electrical components of the ice maker 600, that is, the ice maker 620 and the ice maker 644, and the plurality of electrical components of the dispenser 400. Done.

The sub-PC 460 is supplied with power by the wire C coming from the main body 100, and separates only the electric device and components mounted in the refrigerating chamber door 220 from the main PCB (not shown). To control.

On the other hand, the sub-PC ratio 460 may be mounted not only in the dispenser base 420 but also in the foam of the refrigerating chamber door 220, and if necessary, may be mounted in the ice making chamber 500. to be.

Meanwhile, a part of the opened front surface of the dispenser base 420 is shielded by the dispenser cover 440. The dispenser cover 440 covers the front surface of the dispenser base 420 to form the front appearance of the dispenser 400, and the front surface of the refrigerating chamber door 220 in which the dispenser 400 is provided. It is formed to be in harmony.

Most of the electrical devices and components provided in the dispenser base 420 are shielded from being exposed to the outside by the dispenser cover 440, and a user may put a container such as a cup or a bottle to take out water or ice. Only the ejection portion 442 which can be formed is formed to be opened.

Hereinafter, the operation of the refrigerator employing the refrigerating chamber door provided with the sub-PCB according to the present invention having the configuration as described above is as follows.

When external power is applied to the refrigerator main body 100, the electric devices and components inside the main body 100 operate. The refrigerant flowing in the evaporator inside the main body 100 by the operation of the electric device and components exchanges heat with the air in the refrigerating chamber 200 and the freezing chamber 300 to thereby control the temperature of the refrigerating chamber 200 and the freezing chamber 300. Will be lowered to a temperature suitable for food storage.

Some of the cold air generated by the freezer compartment evaporator 360 cooling the freezer compartment 300 is moved to the inside of the ice making chamber 500 along the cold air duct 380. The cold air introduced into the inside is supplied to the ice maker 620.

The cold air supplied to the ice maker 620 exchanges heat with the water stored in the ice maker 620, and thus ice is made in an ice maker 540 inside the ice maker 500. At this time, the speed and the amount of ice is determined according to the amount of cold air supplied from the freezer compartment evaporator (360).

Meanwhile, the cold air that has been heat-exchanged in the ice making chamber 500 is discharged back to the freezing chamber 300 along the cold air duct 380, and the cold air generated in the freezing chamber evaporator 360 repeats this process.

In addition, the ice that has completed the ice making operation by exchanging heat with cold supplied from the freezing chamber evaporator 360 inside the ice making chamber 500 is stored in the storage case 642 of the ice bank 640.

In this case, when the user takes a container such as a cup or a bottle to the dispensing unit 442 of the dispenser 400 and then operates a separate switch or the operation button 490, the sub-PC ratio 460 ), The moving device 644 is operated.

The ice making device 644 is operated to take out a predetermined amount of ice under the control of the sub-PC ratio 460, and the ice iced by the ice making device 644 is transferred to the dispenser 400.

At this time, the outlet 540 in which the ice comes out of the dispenser 400 is opened by the control of the sub-PC ratio 460, and if necessary, the lamp inside the dispenser 400 may be turned on.

Ice iced through the outlet 540 of the dispenser 400 is contained in a container held by the user. At this time, the state of the ice making chamber 500 is displayed on the display 480, and the user performs the operation of taking out the ice with reference to this.

And, by controlling the amount of cold air supplied into the ice maker 620 according to the operation of the operation button 490, it is possible to control the ice making speed, the discharge speed and the amount of water through the icemaker 644 is adjusted. It would be possible.

All of these operations are performed by the operation of the electronic components constituting the ice maker 620, the ice maker 644, and the dispenser 400 controlled by the sub-PCB 460.

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.

In the refrigerator compartment door equipped with the sub-PCB according to the present invention as described above in detail, an ice maker and an ice bank are mounted inside the ice compartment formed in the refrigerator compartment door, and the ice produced in the ice compartment is placed in the refrigerator compartment door. It is comprised so that it may take out from the dispenser of one side.

Therefore, the user can obtain the desired amount of ice by a simple operation of the dispenser without opening and closing the refrigerating chamber door, thereby improving convenience of use.

In addition, since the cold air supplied to the ice making chamber is induced by using the cold air generated by the freezing chamber evaporator, it is not necessary to include components such as an evaporator and a fan motor in the ice making chamber, thereby increasing the storage space.

In addition, a structure in which ice can be easily taken out through the dispenser should be provided with a plurality of electric devices and components, and a sub-PCB controlling the operation of the electric devices and components is provided in the refrigerating compartment. That is, the door is mounted on one side of the dispenser base.

Therefore, the number of wires coming from the main body to the inside of the refrigerating chamber door can be greatly reduced, whereby electric devices and components having various functions are provided without being affected by the size of the wire inlet of the refrigerator door. It is possible to implement a refrigerator door.

In addition, a sub-PC ratio controlling the ice maker, ice bank, etc., which constitutes the ice-making chamber, and the electronic components constituting the dispenser is mounted on the dispenser base, and the sub-PC ratio and the electrical components controlled by the sub-PC ratio are controlled. Will shorten the distance.

Therefore, the length of the wire connecting the sub PCB and the electrical components is significantly shorter than that of the main PCB of the main body, thereby reducing the production cost, and easily connecting the sub passive and the electric device and the components. By doing so, there is an effect of improving productivity.

Claims (5)

In the refrigerator door to selectively shield the open front of the refrigerator compartment, An ice making chamber formed at one side of the rear surface of the refrigerating chamber door and used to make an ice making operation; Ice making means provided inside the ice making chamber and making and storing ice; A dispenser formed at one side of the front side of the refrigerating chamber door to allow the ice made in the ice making chamber to be taken out; The refrigerator door is provided on one side of the refrigerator door, and comprises a sub-PCB for controlling the operation of at least one of the ice making means and the dispenser. The method of claim 1, wherein the ice making means, An ice maker mounted on one side of the ice making chamber to make ice; The refrigerator compartment door is provided below the ice maker, characterized in that it comprises an ice bank for storing and transporting the ice made in the ice maker. The method of claim 1, wherein the dispenser, A dispenser base recessed in front of the refrigerating chamber door to form a space for the user to easily take out water or ice; And a dispenser cover formed to shield a portion of the front surface of the dispenser base, the dispenser cover forming a front shape of the dispenser. The refrigerator compartment door of claim 3, wherein the sub-PC ratio is mounted on one side of the dispenser base. According to claim 1, One side of the dispenser, The refrigerator compartment door is provided with a sub-PCB, characterized in that the display further shows the operating state of the refrigerator and the dispenser.

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