KR101385122B1 - Apparatus for suppling refrigerant of complexed storage with 5 way step valve - Google Patents

Abstract

The present invention relates to a refrigerant supply device for a mixed reservoir having a 5-way step valve, and that a kimchi storage room and a refrigeration refrigerating room of a mixed reservoir having a 5-way step valve having one inlet pipe and four discharge pipes are provided. By selectively connecting the four discharge pipes in accordance with the opening and closing order of the refrigerant supply can be made by the unnecessary opening and closing of the discharge pipe located in the middle can be minimized the deviation of the internal temperature even if the refrigerant is supplied.

Description

Refrigerant supply unit for mixed storage with 5-way step valve {APPARATUS FOR SUPPLING REFRIGERANT OF COMPLEXED STORAGE WITH 5 WAY STEP VALVE}

The present invention relates to a refrigerant supply device for a mixed storage having a 5-way step valve, and more particularly, to a kimchi storage room and a refrigeration freezing room of a mixed storage having a 5-way step valve having one inlet pipe and four discharge pipes. The present invention relates to a refrigerant supply device of a mixed reservoir having a 5-way step valve selectively connected to four discharge pipes according to the opening and closing sequence of the 5-way step valve to supply a refrigerant.

Generally, a Kimchi refrigerator is composed of a compressor, a condenser, an expansion device, and an evaporator as main components, constitutes a refrigeration cycle, and requires a storage item stored in a storage room through heat transfer between a heater and a storage room separately provided around the evaporator and storage room And is kept at a low temperature.

The kimchi refrigerator includes a direct cooling type (hereinafter referred to as "direct cooling type") cooling the storage compartment by using a pipe type evaporator arranged to surround the outer surface of the storage compartment according to a cooling system, an evaporator having a cooling fin on one side of the storage compartment, (Hereinafter referred to as "indirect cooling") in which cool air is supplied to the storage room by mounting a blower fan and driving the blower fan. On the other hand, in recent years, a mixed storage for mixing and applying a direct cooling room and an intercooling room has been proposed.

In addition, the mixed storage can be divided into Kimchi Storage Room and Refrigerated Refrigeration Room according to the usage of each room, so that Kimchi Storage Room can store Kimchi and other refrigerated foods. It is set to store frozen or refrigerated food.

Background art of the present invention is disclosed in Republic of Korea Patent Publication No. 10-2010-0084715 (2010.07.28.) "Composite Kimchi Refrigerator".

As described above, in a mixed storage pool having a plurality of rooms, a step valve for selectively supplying refrigerant supplied to each room for independent control is applied.

As the step valve drives the step motor, as the step motor rotates and the inner pad opens and closes each discharge pipe, the refrigerant introduced through the inlet pipe is selectively discharged to the discharge pipe, thereby controlling the amount of rotation of the step motor. Refrigerant can optionally be supplied to the.

At this time, the step valve opens and closes the discharge pipe while operating in the clockwise and counterclockwise direction from the origin to the stop point range without continuing to rotate in one direction. While the refrigerant is supplied there is a problem that unwanted cooling occurs.

The present invention was created to improve the above problems, the kimchi storage room and the freezer refrigeration room of the mixed storage having a five-way step valve having one inlet pipe and four discharge pipes in the opening and closing sequence of the five-way step valve. Accordingly, an object of the present invention is to provide a refrigerant supply device of a mixed reservoir having a 5-way step valve selectively connected to four discharge pipes so that a refrigerant supply can be made.

Refrigerant supply apparatus of the mixed reservoir having a 5-way step valve according to an aspect of the present invention has an inlet pipe and a first, second, third, fourth discharge pipe in which the refrigerant is introduced, while reciprocating rotation within the origin and stop range The first, second, third, and fourth discharge pipes are sequentially opened and closed for each staff to discharge the refrigerant, but when rotating from the origin to the stop point, the first, second, third, and fourth discharge pipes are opened and closed in the order, and rotate from the stop point to the origin. In this case, a five-way step valve is opened and closed in the order of fourth, third, second, and first discharge pipes, but the first and second discharge pipes have a narrow control temperature range, so that even if there is temporary refrigerant inflow, the first to second freezing It is connected to the first evaporator and the fourth evaporator of the first to second kimchi storage rooms, where the temperature change is greater than that of the refrigeration rom, and the second discharge pipe and the third discharge pipe have a wide control temperature range, so that even if there is temporary refrigerant inflow, To 2nd kimchi storage room The 5-way step valve is connected to the second evaporator and the third evaporator of the first to second refrigerated freezing rooms, which are less likely to appear, and according to the cooling conditions of the first to second kimchi storage rooms and the first to second freezer refrigerator rooms. It characterized in that it comprises a control unit for driving the reciprocating rotation within the range of the origin and the stop point.

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The present invention selectively connects the kimchi storage room and the freezing and refrigerating room of the mixed reservoir having a 5-way step valve having one inlet pipe and four discharge pipes to four discharge pipes according to the opening and closing sequence of the 5-way step valve. By making it possible, even if the supply of the refrigerant due to unnecessary opening and closing of the discharge pipe located in the middle can minimize the deviation of the internal temperature.

1 is a block diagram showing a refrigerant supply apparatus of a mixed reservoir having a 5-way step valve according to an exemplary embodiment of the present invention.
Figure 2 is a graph showing the opening and closing state of the discharge pipe according to the step of the 5-way step valve according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the refrigerant supply of the mixed reservoir having a 5-way step valve according to the present invention. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a block diagram showing a refrigerant supply device of a mixed storage having a 5-way step valve according to an embodiment of the present invention, Figure 2 is a discharge pipe according to the step of the 5-way step valve according to an embodiment of the present invention A graph showing the open / closed state of.

As shown in FIG. 1, a refrigerant supply device of a mixed storage having a 5-way step valve according to an embodiment of the present invention includes a 5-way step valve 30, first to fourth evaporators 51 to 54, and a controller ( 70).

Looking at the refrigerant circulation state of the mixed reservoir 100 shown in FIG. 1, the refrigerant compressed in the compressor 10 is condensed in the condenser 20 and then branched through the 5-way step valve 30, and the 5-way step valve ( The refrigerant selectively branched at 30 flows back to the compressor 10 through any one of the first to fourth evaporators 51 to 54 via any one of the first to fourth expansion devices 41 to 44. It will cycle.

At this time, the 5-way step valve 30 has an inlet pipe 35 through which the refrigerant flows and the first to fourth discharge pipes 31 to 34, and rotates from the origin to the stop point, and the first to fourth discharge pipes for each staff ( 31 to 34 are sequentially opened and closed to discharge the refrigerant.

As illustrated in FIG. 2, the 5-way step valve 30 sequentially opens and closes the first to fourth discharge pipes 31 to 34 while the step motor (not shown) rotates.

That is, as the rotation amount of the 5-way step valve 30 is adjusted, only the first discharge pipe 31 is opened at the A step, only the second discharge pipe 32 is opened at the B step, and the third discharge pipe 33 is opened at the C step. ) Is opened and only the fourth discharge pipe 34 is opened at the D step.

As described above, only one of the first to fourth discharge pipes 31 to 34 is opened for each step according to the rotation of the step motor, and the other discharge pipe is closed.

At this time, the 5-way step valve 30 is clockwise because it opens and closes the first to fourth discharge pipes 31 to 34 while operating clockwise and counterclockwise within the range of the origin and the stop point without continuously rotating in one direction. When rotating from the origin to the stop point, the first discharge pipe 31, the second discharge pipe 32, the third discharge pipe 33, and the fourth discharge pipe 34 are opened and closed in sequence, but are counterclockwise. When the rotation from the stop point to the origin is opened and closed in the order of the fourth discharge pipe 34-> the third discharge pipe 33-> the second discharge pipe 32-> the first discharge pipe (31).

If the first discharge pipe 31 and the fourth discharge pipe 34 are alternately opened and closed, the 5-way step valve 30 reciprocates clockwise and counterclockwise while the first discharge pipe 31 and the fourth discharge pipe 34 are rotated. ) Will be opened and closed.

However, since the 5-way step valve 30 must pass while opening and closing the second discharge pipe 32 and the third discharge pipe 33 in order to open and close the first discharge pipe 31 and the fourth discharge pipe 34. The refrigerant is partially supplied through the second discharge pipe 32 and the third discharge pipe 33.

In general, in the case of the first to second kimchi storage room 110, 140, although the control temperature range is narrow in order to maintain the kimchi at a constant temperature, even when there is a temporary inflow of refrigerant, the temperature change is relatively large. As the second refrigeration refrigerating room (120, 130) is controlled from the refrigerating temperature to the freezing temperature, the control temperature range is wide, and even though there is a temporary inflow of refrigerant, the temperature change is relatively low.

Accordingly, the first evaporator 51 and the fourth evaporator 54 of the first to second kimchi storage rooms 110 and 140 are respectively connected to the first discharge pipe 31 and the fourth discharge pipe 34. A second evaporator 52 and a third evaporator 53 of the first to second refrigeration refrigerator rooms 120 and 130 are connected to the second discharge pipe 32 and the third discharge pipe 33, respectively.

The controller 70 drives the 5-way step valve 30 according to the cooling conditions of the first to second kimchi storage rooms 110 and 140 and the first to second freezer refrigerator rooms 120 and 130. Selectively opening and closing the first to fourth discharge pipes (31 to 34).

Refrigerant supply device of the mixed reservoir having a five-way step valve made in this way according to the cooling conditions of the first to second kimchi storage room (110) (140) and the first to second refrigeration freezing room (120, 130) By operating the 5-way step valve 30 in the controller 70, the first to fourth discharge pipes 31 to 34 are selectively opened and closed, and the refrigerant is supplied to the first to fourth evaporators 51 to 54.

At this time, if the first to second kimchi storage room 110, 140 is a cooling condition and the first to second refrigeration freezing room 120, 130 is not a cooling condition, the 5-way step valve 30 is the first discharge pipe The 31 and the fourth discharge pipe 34 are selectively opened and closed alternately.

As described above, the second discharge pipe 32 and the third discharge pipe 33 are temporarily opened and closed while the 5-way step valve 30 is operated, and the refrigerant temporarily flows into the second evaporator 52 and the third evaporator 53. Even if it does not affect the control of the first to second refrigeration refrigerating room (120, 130) can be minimized by the refrigerant flow.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill 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 by the appended claims. I will understand. Accordingly, the technical scope of the present invention should be defined by the following claims.

10: Compressor
20: condenser
30: 5-way step valve
31 ~ 34: 1st to 4th discharge pipe
35: inlet pipe
41 ~ 44: 1st to 4th expansion device
51 ~ 54: 1st-4th evaporator
60:
100: mixed storage
110, 140: 1st to 2nd Kimchi Storage Room
120, 130: 1st to 2nd frozen refrigerator room

Claims (2)

It has an inlet tube and the first, 1,2,3,4 discharge pipe in which the refrigerant flows, and the first, second, third, fourth discharge pipe is opened and closed sequentially for each staff while reciprocating within the origin and stop range 5, which is opened and closed in the order of the 1,2,3,4 discharge pipe when rotating from the origin to the stop point, and is opened and closed in the order of the 4,3,2,1 discharge pipe when rotating from the stop point to the origin. With a way step valve,
The first discharge pipe and the fourth discharge pipe have a narrow control temperature range, and the first evaporator of the first to second kimchi storage rooms, in which the temperature change is greater than that of the first to second freezer refrigerators, even when there is a temporary inflow of refrigerant. Connected to each of the fourth evaporators,
The second discharge pipe and the third discharge pipe have a wide control temperature range, so that even if there is a temporary inflow of refrigerant, the second evaporator and the second evaporator of the first to second refrigerated refrigerating rooms exhibit less temperature change than the first to second kimchi storage rooms. Connected to each of the three evaporators,
And a control unit for driving the 5-way step valve to be reciprocally rotated within a range of origin and stop points according to cooling conditions of the first to second kimchi storage rooms and the first to second refrigeration refrigerator rooms. Refrigerant supply in a mixed reservoir with a 5-way step valve.
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