KR20050094674A - Cold air path structure of cold storage room door - Google Patents

Abstract

The present invention relates to a deicing cold air flow path structure in which a refrigerator is provided, in particular, an ice making device is provided inside a refrigerating compartment door and a duct is provided to secure an ice making air flow path in an adiabatic space in which the ice making device is installed.

The ice making air flow path structure in the refrigerating compartment door according to the present invention is provided with an ice maker and an ice bank having an ice maker and an ice bank in an inner heat insulating space of the refrigerating compartment door, and in the cold air supply flow path to the ice making apparatus, An insulation case installed inside the refrigerating compartment door for insulation and having a cold air outlet formed at a lower end of one side thereof; An insulation cover coupled to the front surface of the insulation case; In order to supply cold air to the ice making apparatus, a cold air inlet is formed at an upper end of the heat insulating cover, and a cold air supply duct for ice making is formed on the other side of the cold air exhaust port communicating with the heat insulating space.

Description

Cold air path structure of cold storage room door

The present invention relates to a deicing cold air flow path structure in which a refrigerator is provided, in particular, an ice making device is provided inside a refrigerating compartment door and a duct is provided to secure an ice making air flow path in an adiabatic space in which the ice making device is installed.

In general, a refrigerator is used to freeze or refrigerate food and the like by lowering the temperature in the refrigerator by discharging cold air generated by a refrigeration cycle including a compressor, a condenser, an expansion valve, and an evaporator. Top Mount-Type compartments, Bottom Freezer-Type compartments for freezer compartments and freezer compartments, and Side-by-side type compartments for left and right compartment compartments for freezer compartments and refrigerator compartments. Side-Type).

Here, in the bottom freezer type refrigerator, as shown in FIG. 1, the refrigerator compartment 2 and the freezer compartment 3 are divided up and down by the barrier 11, and the refrigerator compartment door 4 for opening and closing the upper refrigerator compartment 2. ) Is installed, and a freezer compartment door 5 for opening and closing the lower freezer compartment 3 is installed.

A bottom freezer type refrigerator having a conventional ice maker will be described with reference to FIG. 1 as follows.

As shown in FIG. 1, the refrigerator main body 1 in which the refrigerator compartment 2 and the freezer compartment 3 are divided into upper and lower sides by the barrier 11; A refrigerator compartment door (4) and a freezer compartment door (5) for opening and closing the refrigerator compartment (2) and the freezing compartment (3), respectively; A compressor (6) installed in the machine room to compress the refrigerant, an evaporator (7) and a blower fan (8) installed at the rear wall of the freezer compartment for supplying cold air, connected to the compressor (6) and the refrigerant pipe, and a freezer compartment for returning the cold air. The cold air return duct 9 and the refrigerating chamber cold air return duct 10 and the inside of the freezing chamber door 5 are installed inside the freezing chamber 3 to make ice water supplied and to take out and store the iced ice. It consists of an ice making device (30).

As shown in FIG. 3, a general ice maker 12 includes an ice maker 20 for ice-making supply water and extracting iced ice by cold air supplied to a freezing chamber, and an ice maker 20. It consists of the ice bank 30 which stores the ice taken out by it.

The ice making apparatus of the bottom freezer type refrigerator as described above will be described with reference to FIGS. 1 to 3.

As shown in FIG. 2, the refrigerant, which has been phase-changed into a low-temperature low-pressure gas phase state by the evaporator 7, is flowed to the compressor 6 and compressed from the low temperature low pressure to the high temperature high pressure through the compressor 6. The high-temperature, high-pressure gas phase refrigerant is cooled and condensed in the course of passing through the condenser, and phase-changed into a high-pressure liquid phase. As described above, the refrigerant phase-changed into a high-pressure liquid phase is passed through an expansion valve, by heat exchange in the evaporator 7. After being depressurized (thermally inflated) in an easy-to-evaporate state, the refrigerant is flowed into the evaporator 7 in which the evaporation process of the refrigerant is carried out. As described above, the refrigerant introduced into the evaporator 7 undergoes an endothermic action to absorb heat inside the refrigerator. After the phase change to the low-temperature low-pressure gas phase state to cool the air around it, it forms a refrigeration cycle that flows back into the compressor (6).

At this time, the air (cold air) cooled while losing heat to the refrigerant through heat exchange with the evaporator 7 is discharged from the freezing chamber 3 side by driving the blower fan 8 installed on the top of the evaporator 7. In this case, the cold air discharged by driving the blower fan 8 is branched to the freezing chamber 2 and the refrigerating chamber 3 according to the damper operation.

In particular, the cold air discharged to the freezer compartment 3 side flows into the ice maker 20 of the ice maker 12 installed in the freezer compartment 3 to perform an ice making operation in the ice maker 12.

As shown in FIG. 3, the ice maker 20 has an ice making chamber 21 in which ice is generated, and a water supply unit formed at one side of the ice making chamber 21 to supply water to the ice making chamber 21. (22) is formed.

The ice making chamber 21 has a substantially semi-cylindrical shape, and partition ribs 21a are formed to protrude upward at predetermined intervals so that ice can be separated therein. In addition, a fastening part 25 is formed at a rear portion of the ice making chamber 21 so as to fix the ice making device to the freezing chamber.

The motor unit 23 is installed at one side of the ice making chamber 21. The motor unit 23 has a motor embedded therein, the ejector 24 (ejector) is rotatably connected to the rotation shaft of the motor.

The ejector 24 is installed so that the rotating shaft crosses the center of the ice making chamber 21, and a plurality of ejector pins 24a are spaced at predetermined intervals so that the rotating shaft of the ejector 24 is substantially perpendicular to the rotating shaft. do. At this time, the ejector pins 24a are disposed for each section partitioned by the partition ribs 21a.

A plurality of slide bars 26 extend to the upper end of the front side of the ice making chamber 21 to about the rotation axis of the ejector 24.

In addition, a heater (not shown) is attached to a bottom surface of the ice making chamber 21. The heater heats the surface of the ice making chamber for a short time to slightly melt the ice surface attached to the surface of the ice making chamber so that the ice can be easily separated from the ice making chamber 21.

The ice maker 20 is provided with an ice-covering arm 28 to measure the amount of ice filled in the ice bank 30. The ice detection arm 28 is installed to be movable up and down and is connected to a control unit embedded in the motor unit 23. By the action of the ice detection arm 28 and the control unit, the ice bank 30 is filled with a certain amount of ice.

The ice bank 30 stores the falling ice.

Looking at the operation of such an ice making apparatus, when ice making is completed in the ice maker 20 through the ice making operation, the lower end of the ice maker 20 is placed in a state where ice is easily separated through a heater installed on the bottom of the ice maker 20. After heating, the ice is separated by the rotation of the ejector 24 installed to be rotatable in the ice maker 20 and stored in the ice bank 30 installed at the bottom of the ice maker 20.

The cold air supplied by the evaporator and the blower fan is supplied through the cold air supply duct 2a provided on the rear wall of the refrigerating chamber, and is supplied to the refrigerating chamber by the cold air discharge port 2b. The cold air used by the refrigerating compartment 2 is returned to the lower part of the evaporator through the return duct 10.

However, in the conventional bottom freezer type refrigerator, the ice dispenser does not exist in the product in which the dike device is installed in the freezer compartment. In addition, there is a problem that can not be used as a high volume as the space occupied by the ice making device in the freezer compartment, there was a big problem that the overall use volume of the refrigerator is reduced.

The present invention has been made to solve the above problems, to form a heat insulation space in the refrigerating compartment door to install the embankment device, and to form a cold air inlet in the heat insulation cover located in front of the heat insulation space, the cold air sucked in the heat insulation cover An object of the present invention is to provide a flow path structure of ice making cold air that can be discharged to an ice making space therein.

Another object of the present invention is to provide a deicing cold air flow path structure for supplying cold air directly to the ice maker of the ice making machine, by providing a cold air inlet, an internal duct, and a cold air outlet in the insulation cover.

Another object of the present invention is to provide an ice-making cold flow channel structure that allows the cooling air exhaust port of the insulation cover different from each other, so that more cold air can be supplied to the center portion of the ice maker.

Still another object of the present invention is to provide an ice-making cold flow channel structure in which ice-making cold air is supplied through an insulation case by forming a cold air inlet, an internal duct, and an exhaust air outlet in an insulation case of an insulation cover and an insulation case forming an insulation space. The purpose is.

The ice making air passage structure in the refrigerating compartment door according to the present invention for achieving the above object,

An ice making device including an ice maker and an ice bank is installed in an inner heat insulating space of the refrigerating compartment door, and in the cold air supply flow path to the ice making device,

A heat insulation case installed inside the refrigerating compartment door to insulate the ice making machine, and having a cold air outlet formed at a lower end of one side thereof;

An insulation cover coupled to the front surface of the insulation case;

In order to supply cold air to the ice making apparatus, a cold air inlet is formed at an upper end of the heat insulating cover, and a cold air supply duct for ice making is formed on the other side of the cold air exhaust port communicating with the heat insulating space.

The ice making air passage structure of the refrigerating compartment door according to the embodiment of the present invention,

An ice maker equipped with an ice maker and an ice bank is provided inside the refrigerator compartment door, and in the cold air supply flow path to the ice maker,

A heat insulation case installed inside the refrigerating compartment door to insulate the ice making machine, and having a cold air outlet formed at a lower end of one side thereof;

An insulation cover coupled to the front surface of the insulation case to form an insulation space;

Cold air inlet is formed on one side of the upper surface of the heat insulating case to supply cold air to the ice making device, characterized in that it comprises a cold air supply duct for ice making the cold air exhaust port formed in communication with the heat insulating space at the lower end of the other side.

Preferably, the cold air exhaust port is characterized in that at least one is formed at a predetermined interval in the longitudinal direction of the ice maker.

Preferably, the cold air outlet is characterized in that arranged in one or more different sizes at a predetermined interval in the longitudinal direction of the ice maker.

Preferably, the cold air exhaust port is characterized in that at least one formed perpendicular to the longitudinal direction of the ice maker.

Preferably, the cold air vent is characterized in that at least one is formed inclined with respect to the longitudinal direction of the ice maker.

Hereinafter, with reference to the accompanying drawings as follows.

As shown in FIGS. 4 and 5, the barrier 111 partitioning the refrigerating compartment 102 and the freezing compartment 103 up and down, and the door 104 for opening and closing the refrigerating compartment 102 and the freezing compartment 103 ( 105), the evaporator 107 and the plurality of blowing fans 108 and 108b for generating cold air, the cold return ducts 109 and 110, and the barrier 111 are installed and discharged by the second blowing fan 108b. A first cold air supply duct 120 for flowing cold air, a second cold air supply duct 121 formed at a sidewall of the first cold air supply duct 120 in communication with the first cold air supply duct 120, and an inner ice making space of the refrigerating compartment door 104 The ice making device 130 is installed in the 130a and receives the cold air of the second cold air supply duct 121 to ice the supplied water and store the iced ice, and one side communicates with the ice making space and is used for ice making. And a third cold air supply duct 128 for discharging the cold air to the freezing chamber 103 through the side wall.

As shown in FIG. 6, the ice making device 130 includes an insulation cover 131 and an insulation case 132 for forming and insulating an ice making space in the refrigerating compartment door, and ice provided in the ice making space. An ice making duct 124a for ice making, which is formed in the maker 133 and the ice bank 134 and the heat insulation cover 131 and has a cold air inlet 124 and a cold air exhaust port 124b so that cold air flows into the ice making space 130a. ), A cold air outlet 126 formed at one lower end of the heat insulation case 132, an ice outlet 136, and a dispenser 137.

Referring to the accompanying drawings, the ice making air flow path structure of the bottom freezer type refrigerator according to the embodiment of the present invention configured as described above is as follows.

4 to 6, in the bottom freezer type refrigerator 100, the refrigerator compartment 102 and the freezer compartment 103 are partitioned up and down by the barrier 111, and the inner insulation space of the one refrigerator compartment door 104 is formed. Or an ice making device 130 in the ice making space).

Since the ice maker 130 is installed inside the refrigerating chamber door 104, a flow path for supplying the freezer cold air to the ice maker 130, the freezing chamber 103 and the refrigerating chamber 104 is provided.

That is, the heat insulation space 130a is formed inside the refrigerating compartment door 104, the ice making device 130 is installed in the heat insulation space 130a, and the cold air supply passage for ice making is formed in the ice making device 130. Let it be. The de-icing cold air supply passage is formed by communicating the first cold air supply duct 120 formed on the barrier 111 and the second cold air supply duct 121 formed on the sidewall, and the first and second cold air supply ducts 120 and 121 communicate with each other. Through the ice to supply the ice device 130.

Therefore, the cold air discharged by the evaporator 107 and the second blowing fan 108b installed on the other side of the upper part of the evaporator, as shown in FIG. 4, is supplied to the ice maker 130 through the first and second cold air supply ducts 120 and 121. As shown in FIG. 5, the first cold air supply flow path and the second cold air supply flow path supplying the cold air discharged by the evaporator 107 and the first blowing fan 108 to the refrigerating chamber 103 and the freezing chamber 104. Will work. Each of the first and second cold air supply flow paths may be operated separately or used in common.

Here, the 1st cold air supply flow path is aimed at rapid ice-making, and when it is not rapid ice making, it can be used in parallel with a 2nd cold air supply flow path. These modes may be used for each mode through the user's selection control from outside and the ice making time control in the controller, or may be used in common.

Here, the second blower fan 108b uses a fixed pressure fan because it needs to supply cold air through the cold air supply ducts 120 and 121. Since the fixed pressure fan discharges cold air at a constant high pressure, it is possible to increase the amount of air to reduce the temperature difference between the discharge cold air and the freezing chamber.

In another embodiment, a single blower fan may be installed to provide a predetermined cold air supply path to be supplied to the freezing compartment, the freezing compartment, and the ice making space.

On the other hand, the ice making device 130 is installed in the heat insulating space (130a) formed of the heat insulating case 132 and the heat insulating cover 131, as shown in Figure 6 to include the ice maker 133 and the ice bank 134 do.

Here, the ice making unit 130 is an ice making space 130a through the first and second cold air supply ducts 120 and 121 formed on the barrier 111 and the sidewall of the refrigerator, wherein the cold air discharged by the second blowing fan 108b is formed. It can be supplied as so that the temperature can be kept below a certain level. Accordingly, the ice maker 133 ices the supplied water, removes the iced ice, and stores the iced water in the ice bank 134. The cold air used for ice making flows along the third cold air supply duct 128 through the cold air outlet 126 and is supplied to the freezing compartment.

Referring to the flow path for supplying the freezer cold air to the ice making device 130 as described above are as follows.

4 and 6, the first cold air supply duct 120 is formed in the barrier 111 and flows cold air generated by the evaporator 107 and the second blower fan 108b which are cold air generating means. It is supplied to the second cold air supply duct 121 through the cold air inlet 123. The second cold air supply duct 121 is formed on the sidewall of the refrigerator and supplies cold air introduced through the cold air inlet 123 to the cold air inlet 124 formed in the heat insulation cover 131 of the refrigerating compartment door 104.

6 and 7, the refrigerant flowing into the cold air inlet 124 formed on one side of the heat insulating cover 131 flows through the internal duct 124a of the heat insulating cover 131, and then, To the two cold air exhaust ports 124b.

As shown in (a) and (b) of FIG. 8, the heat insulating cover 131 is provided with a cold air supply duct 124a for ice making. A cold air inlet 124 is formed at one side of the ice making air supply duct 124a for ice making, and at least one cold air outlet 124b is formed at the other side. The cold air inlet 124 is combined with an end of the second cold air supply duct 121 in a rectangular shape to suck in cold air.

And the ice-making cold air supply duct 124b is formed in the horizontal direction, and a plurality of cold air exhaust ports 124b processed at regular intervals are formed in the inner duct 124a. That is, the cold air exhaust port 124b is arranged to face the portion where the ice maker 133 is installed at regular intervals in the longitudinal direction.

As such, the ice maker 131 ices the supply water by using the cold air sucked into the ice making space through the cold air inlet 124 of the heat insulating cover 131, and the iced ice is fixed temperature in the ice bank 132. To be maintained.

The cold air used for the ice making by the ice making device 130 is discharged to the freezing chamber 104 through the third cold air supply duct 128.

At this time, the cold air discharged into the freezing chamber through the cold air outlet 129 of the third cold air supply duct 128 is used in the freezing chamber 104 and then returned to the cold air return duct 109.

On the other hand, as shown in Figure 7 and 8, since the cold air is supplied through the cold air inlet 124, the ice-making cold air supply duct 124a, the cold air outlet 124b formed in the heat insulating cover 131, Since the ice maker 133 is installed, that is, the cold water for ice making can be directly supplied to the portion where the supply water is iced, the ice making efficiency is improved. Here, the cold air exhaust port 124b is simply a structure in which cold air is injected in the forward direction in a rectangular shape.

On the other hand, Figure 9 is another embodiment of the present invention, the cold air exhaust port 224b formed in the inner duct 224b of the heat insulating cover 231 is formed to be inclined in one direction, concentrated injection in the inclined direction, heat insulation This allows the cold air to flow in a location relatively remote from the cold air outlet of the case.

10 is another embodiment of the present invention, the shape and size of the cold air exhaust port 324b of the heat insulating cover 333 may be different from each other. That is, the shape of the cold air exhaust port 324b may be formed in a square or a rectangle, or formed in one or more rows in the lateral direction, or may have a different shape. This allows the cold air exhaust port 324b to be concentrated in the center direction of the ice maker.

11 illustrates a cold air inlet 424, an ice making air supply duct 424b, and a cold air exhaust port 424b on the ceiling of the heat insulation case 432. This is because when the cold air flowing into the ice making air supply duct 424a through the cold air inlet 424 flows into the ice making space 430a through the plurality of cold air exhaust ports 424b, the cold air flows upward of the ice maker 433. Since it is supplied directly, the ice making efficiency is improved.

On the other hand, the cold air inlet and the cold air outlet formed in the heat insulating cover and the heat insulating case according to an embodiment of the present invention is to be communicated with the side wall of the refrigerator body through the refrigerating chamber door, that is, the structure is formed in an uneven shape so that cold air does not leak to the outside Has Alternatively, the gasket structure may be a joining structure around the concave-convex shape.

On the other hand, as another embodiment, by changing the positions of the one side cold air inlet and the other side of the cold air outlet of the heat insulating space according to the present invention can be supplied to the cold air in the downward direction and discharge the cold air in the upward direction. This can be achieved by changing only the end positions of the second and third cold air supply ducts.

Therefore, the present invention is to install an ice making device inside the refrigerating compartment door, and to form an ice making air supply (discharge) duct in the heat insulating member (insulation case, heat insulation cover) for insulating for the ice making machine, bottom freezer type In addition to the refrigerator, the top mount type with the freezer compartment and the refrigerating compartment divided up and down, and the side by side refrigeration compartment door where the freezer compartment and the refrigerating compartment are divided left and right Application is possible.

So far, the present invention has been described with reference to the preferred embodiments, and those skilled in the art to which the present invention pertains to the detailed description of the present invention and other forms of embodiments within the essential technical scope of the present invention. Could be implemented. Here, the essential technical scope of the present invention is shown in the claims, and all differences within the equivalent range will be construed as being included in the present invention.

As described above, according to the ice-making cold flow path structure of the refrigerating compartment door according to the embodiment of the present invention, an ice making device is installed in the refrigerating compartment door, and a cold air supply duct for ice making is formed in the insulation cover, thereby increasing the volume of the freezing compartment. In addition, there is an effect that can efficiently supply the ice for ice making to the ice making device.

1 is a configuration diagram showing a conventional bottom freezer type refrigerator.

2 is a configuration diagram in which an ice making device of a conventional bottom freezer type refrigerator is installed.

3 is a detailed configuration diagram of a general embankment device.

4 is a side cross-sectional view illustrating a structure of a cold air flow path for ice making in a bottom freezer type refrigerator according to an embodiment of the present invention.

Figure 5 is a side cross-sectional view showing a cold air supply flow path to the refrigerator compartment and the freezer compartment in Figure 4 of the present invention.

6 is a structure of the embankment installed in the refrigerator compartment door of FIG.

FIG. 7 is a perspective view illustrating an ice making duct for ice making of an insulation cover coupled to the inside of a refrigerating compartment door in FIG. 4 of the present invention. FIG.

8 is a perspective view of the heat insulating cover in Figure 7, and a side cross-sectional view thereof.

Figure 9 is a side cross-sectional view showing another configuration of the insulating cover according to the present invention.

10 is a perspective view showing another configuration of the insulating cover according to the present invention.

11 is a view showing the structure of an embankment installed in a refrigerating compartment door as another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100 ... fridge 102 ... fridge

103 ... Freezer 104,105 ... Door

107 ... Evaporator 108,108b ... Blower Fan

Cold return duct 111 Barrier

120,121,128 ... Cold supply duct 130,430 ... Ice machine

131,431 Insulation cover 132,432 Insulation case

133,433 ... Ice Maker 134,434 ... Ice Bank

137,437 ... Dispenser 124,224,324,424 ... Cool air intake

124a, 224a, 324a, 424a ... Ice supply duct for ice making

124b, 224b, 324b, 424b ... Cold vent

126,426.Cool air outlet

Claims (3)

An ice making device including an ice maker and an ice bank is installed in an inner heat insulating space of a refrigerating compartment door, and in the ice making flow path structure of the ice making device, A heat insulation case installed inside the refrigerating compartment door to insulate the ice making machine, and having a cold air outlet formed at a lower end of one side thereof; A heat insulation cover installed on the front of the heat insulation case so as to be opened and closed to form a heat insulation space; A cold air inlet is formed at an upper end of one side of the heat insulating cover to supply cold air to the ice making device, and an ice making duct for ice making is formed on the other side of the cold air exhaust port communicating with the heat insulating space. Cold Euro Structure. In the ice-making apparatus provided with an ice maker and an ice bank inside the refrigerating chamber door, In the ice-making cold air flow path structure to the said ice-making apparatus, A heat insulation case installed inside the refrigerating compartment door to insulate the ice making machine, and having a cold air outlet formed at a lower end of one side thereof; An insulation cover coupled to the front surface of the insulation case to form an insulation space; A cold air inlet is formed on one side of an upper surface of the heat insulation case to supply cold air to the ice making device, and a cold air supply duct for ice making is formed on the other end of the cold air exhaust port communicating with the heat insulation space. Cold Euro Structure. The method according to claim 1 or 2, The ice-cooling air passage structure of the refrigerating compartment door, characterized in that at least one cold air exhaust port is formed in the longitudinal direction of the ice maker.