KR20210089531A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator capable of improving efficiency thereof since reference temperature, where a compressor is controlled, is changed according to a first state where a full-ice function or an ice-making function is turned off and a second state where the ice-making function is turned on.

Description

refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator capable of improving efficiency of a refrigerator by changing a reference temperature at which a compressor is controlled according to a first state in which the ice full or ice making function is turned off and a second state in which the ice making function is turned on.

BACKGROUND ART In general, a refrigerator is a home appliance for storing food in a refrigerated or frozen state in a storage compartment opened and closed by a door, and typically includes a refrigerator compartment for storing food in a low-temperature refrigerated state and a freezer compartment for freezing food and storing it in a frozen state. be prepared

In addition, the refrigerator may additionally include an ice-making chamber for generating and storing ice for the convenience of the user, and a dispenser may be provided so that the user can take out the ice stored in the ice-making chamber to the outside.

Recently released refrigerators tend to provide a refrigerating compartment, which is used relatively more frequently than the freezer compartment, on the upper part of the main body, and provide a freezer compartment that is used relatively less than the refrigerating chamber on the lower part of the main body. A French door type refrigerator in which the refrigerating compartment is opened and closed by two rotatable doors arranged side by side and the freezer compartment is opened and closed by a slidably installed drawer-type door is in the spotlight.

In such a refrigerator, an insulating material is provided on the wall of the ice-making chamber forming the main body and the ice-making chamber, and there is one disclosed in 'Korea Patent Publication No. 10-0531298' as a related prior art.

'Korea Patent Publication No. 10-1182276' describes a control method of such a French door type refrigerator.

The refrigerator of 'Korea Patent Publication No. 10-1182276' includes a cold air duct communicating with the inside of a freezing chamber or an evaporator, a cooling fan mounted on the cold air duct to supply cold air into the ice making chamber, and the temperature of the ice making chamber. It includes an ice-making temperature sensor for sensing, and a controller for receiving the temperature sensed by the ice-making temperature sensor and controlling the operation of the cooling fan.

The controller drives the cooling fan at high speed when the temperature detected by the ice-making temperature sensor is greater than or equal to the set driving temperature of the cooling fan, and drives the cooling fan when the temperature detected by the ice-making temperature sensor is less than the set cooling fan driving temperature to stop

In addition, after the ice is full, the temperature sensed by the ice making temperature sensor is compared with the set driving temperature of the cooling fan, and if the temperature sensed by the control temperature sensor is higher than the set cooling fan driving temperature, the cooling fan is driven at a low speed.

That is, when ice making is performed, the cooling fan is driven at a high speed, and after the ice is full, the cooling fan is driven at a low speed.

In this control method of the refrigerator, since there is no difference in the driving temperature of the cooling fan when the ice is full and when the ice is made, and there is no difference in the driving temperature of the cooling fan when the ice is turned off and when the ice is made, there is no difference in the driving temperature of the refrigerator. There is a problem in that the efficiency of the

Korean Patent Publication No. 10-0531298 Korean Patent Publication No. 10-1182276

The present invention has been devised to solve the above-mentioned problem, and sets the reference temperature at which the compressor is controlled differently according to a first state in which the full ice or ice-making function is turned off and a second state in which the ice-making function is turned on. An object of the present invention is to provide a refrigerator that can increase the efficiency of

The refrigerator of the present invention for achieving the above object includes a main body including a refrigerating compartment, a freezing compartment and an ice-making compartment, an ice-making temperature sensor measuring the temperature of the ice-making compartment, and a compressor operated by a signal from the ice-making temperature sensor, , the reference temperature of the ice-making chamber in which the compressor is turned on or off is set differently according to a first state in which the ice-making function is turned off, and a first state in which the ice-making function is turned on.

A reference temperature at which the compressor is turned on in the first state may be set higher than a reference temperature at which the compressor is turned on in the second state.

The rpm of the compressor in the first state may be set to be lower than the rpm of the compressor in the second state.

The ice-making chamber evaporator that exchanges heat with the ice-making chamber and the freezing chamber evaporator that exchanges heat with the freezing chamber are connected to each other, so that a refrigerant may flow from the ice-making chamber evaporator toward the freezing chamber evaporator.

The freezing chamber further includes a freezing temperature sensor measuring a temperature of the freezing chamber, the compressor is operated by the ice making temperature sensor and the freezing temperature sensor, and the temperature of the ice making chamber measured by the ice making temperature sensor is the When the temperature of the freezing chamber measured by the freezing temperature sensor is lower than the reference temperature at which the compressor is turned off is lower than the reference temperature at which the compressor is turned off, the operation of the compressor may be stopped.

A storage space is provided and an inner case including a partition in which a heat insulating material accommodating space is provided, and an outer case provided around the inner case so that a space communicating with the heat insulating material accommodating space is provided, wherein the storage space is the inside The refrigerating chamber and the ice-making chamber are partitioned by the partition unit formed in the case, and the insulation material injected into the main body is injected into the space portion and the insulation accommodating space and foamed, so that the refrigerating chamber and the ice-making chamber are simultaneously independent of each other. It is characterized in that it is formed as an insulating space.

The inner case includes a partition wall provided with a space for accommodating an insulating material to partition the refrigerating compartment and the freezing compartment, and the partition wall is formed by injecting the insulating material injected into the main body to form integrally with the refrigerating compartment, the freezing compartment and the ice-making compartment. At the same time, it is characterized in that it is formed as an insulating space independent of each other.

The partition wall divides the refrigerating compartment and the freezing compartment by a separate insulating material.

According to the present invention, there are the following effects.

The efficiency of the refrigerator may be improved by differently setting the reference temperature at which the compressor is controlled according to the first state in which the ice-making function is turned off and the first state in which the ice-making function is turned off, and the second state in which the ice-making function is turned on.

The ice making efficiency may be improved by setting the rpm of the compressor in the second state to be higher than the rpm of the compressor in the first state.

By installing each evaporator in the order of an evaporator for a refrigerating chamber, an evaporator for an ice-making chamber, and an evaporator for a freezing chamber, when the ice-making chamber is overcooled, cold air is distributed to the freezing chamber to ensure the reliability of the compressor defrosting.

Since the refrigerating compartment, the freezing compartment, and the ice making compartment are formed as independent spaces at the same time by foaming, the number of work hours is reduced and productivity and durability are improved.

1 is a perspective view of a refrigerator according to a preferred embodiment of the present invention;
2 is a block diagram of a refrigerator according to a preferred embodiment of the present invention.
3 is a graph of a reference temperature for controlling a compressor when the refrigerator according to a preferred embodiment of the present invention is in a first state (A) and in a second state (B).
4 is an rpm graph of the compressor when the refrigerator according to the preferred embodiment of the present invention is in a first state (A) and in a second state (B).
5 is a front view schematically illustrating a process of forming a refrigerator according to a preferred embodiment of the present invention.

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

The terminology used herein is for the purpose of referring to specific embodiments only, and is not intended to limit the invention. As used herein, the singular forms also include the plural forms unless the phrases clearly indicate the opposite.

As used herein, the meaning of "comprising" specifies a particular characteristic, region, integer, step, operation, element and/or component, and the presence of another particular characteristic, region, integer, step, operation, element and/or group. I am not excluding the addition.

As shown in Fig. 1, the main body 10 of this preferred embodiment is composed of three storage compartments.

The storage compartment is provided with a refrigerating compartment 11 , an ice making compartment 13 , and a freezing compartment 15 .

A freezing chamber 15 is provided at a lower portion of the main body 10 , and a refrigerating chamber 11 and an ice making chamber 13 are provided at an upper portion of the main body 10 .

As shown in FIG. 5, the body 10 includes an inner case including a partition in which an insulating material accommodating space is provided, and an outer case provided on the periphery of the inner case to provide a space communicating with the insulator accommodating space. However, the storage space is divided into a refrigerating compartment 11 and an ice-making compartment 13 by the compartment formed in the inner case, and the insulating material injected into the body 10 is injected into the space and the insulating material accommodating space. As the unit is foamed, the refrigerating chamber 11 and the ice making chamber 13 are simultaneously formed as independent insulating spaces.

Contrary to the above, the storage space may be divided into a refrigerating compartment 11, a freezing compartment 15 and an ice making compartment 13, and the insulating material injected into the body 10 is injected into the space and the insulating material accommodating space. According to the integral foaming, the refrigerating compartment 11 , the freezing compartment 15 , and the ice-making compartment 13 can be formed as an insulating space independent of each other at the same time.

In this case, the partition wall or the partition part may be integrally formed with the inner case or may be formed separately and coupled thereto, and the partition wall may partition the refrigerating chamber and the freezing chamber by a separate heat insulating material.

As a result, the refrigerating compartment 11 , the ice making compartment 13 , and the freezing compartment 15 are insulated from each other so that each of the storage compartments can be independently cooled.

As shown in FIG. 2 , the refrigeration cycle of the main body 10 includes a compressor 200 for compressing a refrigerant at high temperature and high pressure, a condenser 300 for condensing a refrigerant flowing in from the compressor 200 into a liquid state, and a condenser A dryer 400 that removes moisture from the refrigerant flowing in from the dryer 400, a four-way valve 100 that distributes the refrigerant flowing in from the dryer 400 to each refrigerant supply passage, and the refrigerant introduced through the refrigerant supply passage and an evaporator for evaporating the evaporator to lower the temperature of each of the storage chambers.

The evaporator includes a refrigerating compartment evaporator 110 that heat-exchanges with the refrigerating compartment 11 , an ice-making compartment evaporator 130 that exchanges heat with the ice-making compartment 13 , and a freezing compartment evaporator 150 that exchanges heat with the freezing compartment 15 .

The ice-making chamber evaporator 130 is included in a cooling unit (not shown) that cools the ice-making chamber 13 .

The cooling unit includes a centrifugal fan (not shown) and an ice-making chamber evaporator 130 .

The four-way valve 100 controls the direction of the refrigerant flowing in the refrigerant supply passage by a control unit (not shown).

The refrigerant discharged from the evaporator flows into the ice-making compartment evaporator 130 , the freezing compartment evaporator 150 , or the compressor 200 through each refrigerant discharge passage.

The refrigerant supply flow path is configured in parallel, and the refrigerant discharge flow path is configured in series in the order of the refrigerating compartment evaporator 110 , the ice making compartment evaporator 130 , and the freezing compartment evaporator 150 .

Accordingly, the refrigerant can be efficiently distributed to the refrigerating compartment evaporator 110 , the ice making compartment evaporator 130 , and the freezing compartment evaporator 150 according to the load applied to the refrigerating compartment 11 , the ice making compartment 13 , and the freezing compartment 15 , respectively.

The ice-making chamber 13 is placed in a full ice state or a first state (A) in which the ice-making function is turned off, or a second state (B) in which the ice-making function is turned on, depending on the operating environment.

An ice-making temperature sensor for measuring the temperature of the ice-making chamber 13 and an ice full sensor for detecting the full ice state are installed in the ice-making chamber 13 .

The temperature measured by the ice-making temperature sensor is transmitted to the control unit.

The full ice sensor may be provided as a sensor that determines whether ice has accumulated up to a position corresponding to full ice by using infrared rays.

The reference temperature of the ice making chamber 13 is largely divided into four types.

In the first state (A), the control unit transmits a signal to turn on the compressor 200, T1, which is the reference temperature, T2, which is the reference temperature, at which the control unit sends a signal to turn off the compressor 200, and the second state (B) is divided into T3, which is a reference temperature at which the control unit sends a signal to turn on the compressor 200, and T4, which is a reference temperature at which the control unit sends a signal to turn off the compressor 200.

Since the first state (A) is a state in which the ice is full or the ice making function is turned off, it is sufficient to maintain a temperature at which the ice can be maintained in a frozen state. That is, the temperature may be maintained higher than that of the second state (A) in which the ice making function is turned on.

Therefore, as shown in FIG. 3, the reference temperature T1 is set higher than the reference temperature T3.

In addition, the reference temperature T1 is set higher than the reference temperature T2, and the reference temperature T3 is set higher than the reference temperature T4.

That is, since the reference temperature at which the compressor 200 operates in the first state (A) is set higher than the reference temperature at which the compressor 200 operates in the second state (B), the first state (A) is When the power consumption is reduced, the efficiency of the refrigerator is increased.

A freezing temperature sensor for measuring the temperature of the freezing chamber 15 is installed in the freezing chamber 15 .

The temperature measured by the freezing temperature sensor is transmitted to the control unit.

When the reference temperature at which the control unit sends a signal to turn on the compressor 200 is T5 and the reference temperature at which the control unit sends a signal to turn off the compressor 200 is T6, the reference temperature T5 is set higher than the reference temperature T6 .

In the first state (A), when the temperature measured by the ice making temperature sensor reaches T2 and the temperature measured by the freezing temperature sensor reaches T6, the compressor 200 is turned off.

Also, in the second state (B), when the temperature measured by the ice making temperature sensor reaches T4 and the temperature measured by the freezing temperature sensor reaches T6, the compressor 200 is turned off.

That is, the compressor 200 is turned off only when both the temperature measured by the ice making temperature sensor and the temperature measured by the refrigeration temperature sensor reach the reference temperature at which the compressor 200 is turned off. If at least one of the temperature measured by the ice making temperature sensor and the temperature measured by the freezing temperature sensor does not reach the reference temperature at which the compressor 200 is turned off, the compressor 200 is not turned off.

After the compressor 200 is turned off, when at least one of the temperature measured by the ice-making temperature sensor and the temperature measured by the refrigeration temperature sensor reaches the reference temperature at which the compressor 200 is turned on, the compressor 200 is operated.

As shown in FIG. 4 , the rpm of the compressor 200 in the first state (A) is set lower than the rpm of the compressor 200 in the second state (B).

Due to this, the efficiency of ice making is improved in the second state (B).

In addition, since the rpm of the compressor 200 required in the first state (A) is lowered, the efficiency of the compressor 200 is improved.

In the second state (B), when an amount of cold air greater than the required amount is made in the ice-making chamber 13, the remaining cold air used to cool the ice-making chamber 13 is passed through the refrigerant discharge passage to the freezing chamber evaporator 150. is discharged with

As a result, overcooling of the ice making chamber 13 is prevented, and the reliability of the defrosting of the compressor 200 can be secured.

As described above, although described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify or modify the present invention within the scope without departing from the spirit and scope of the present invention as set forth in the claims. can be carried out.

10: body
11: Refrigerator
13: Ice making room
15: Freezer
100: four-way valve
110: refrigerator compartment evaporator
130: ice-making room evaporator
150: freezer compartment evaporator
200: compressor
300: condenser
400: dryer

Claims (8)

a body including a refrigerator compartment, a freezer compartment, and an ice-making compartment;
an ice-making temperature sensor for measuring the temperature of the ice-making chamber; and
a compressor operated by a signal from the ice-making temperature sensor;
The reference temperature of the ice-making chamber in which the compressor is turned on or off is set differently according to a first state in which the ice-making function is turned off, and a first state in which the ice-making function is turned on. The method according to claim 1,
a reference temperature at which the compressor is turned on in the first state is set higher than a reference temperature at which the compressor is turned on in the second state. The method according to claim 1,
The rpm of the compressor in the first state is set lower than the rpm of the compressor in the second state. The method according to claim 1,
an ice-making chamber evaporator exchanging heat with the ice-making chamber;
The freezing chamber evaporator that exchanges heat with the freezing chamber is connected to each other,
A refrigerator in which a refrigerant flows from the ice-making chamber evaporator toward the freezing chamber evaporator. 5. The method according to claim 4,
The freezing compartment further includes a freezing temperature sensor that is turned on or off according to the temperature of the freezing compartment,
The compressor is operated by the ice-making temperature sensor and the freezing temperature sensor,
When the temperature of the ice-making chamber measured by the ice-making temperature sensor is lower than the reference temperature at which the compressor is turned off, and the temperature of the freezing chamber measured by the freezing temperature sensor is lower than the reference temperature at which the compressor is turned off, the compressor operates frozen refrigerator. 6. The method according to any one of claims 1 to 5,
an inner case having a storage space and including a partition in which an insulating material accommodating space is provided; and
An outer case provided on the periphery of the inner case so as to provide a space portion communicating with the heat insulating material accommodating space;
The storage space is divided into the refrigerating compartment and the ice making compartment by the compartment formed in the inner case,
The insulator injected into the main body is injected into the space portion and the insulator accommodating space and is integrally foamed, so that the refrigerating chamber and the ice-making chamber are simultaneously formed as independent insulating spaces. 7. The method of claim 6,
The inner case includes a partition wall provided with an insulating material accommodating space to partition the refrigerating compartment and the freezing compartment,
In the partition wall, the refrigerating compartment, the freezing compartment and the ice making compartment are simultaneously formed as independent insulating spaces as the insulating material injected into the body is injected and foamed. 8. The method of claim 7,
The partition wall divides the refrigerating compartment and the freezing compartment by a separate insulating material.

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