KR20200112492A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator capable of withdrawing a door of a deep-temperature freezer compartment without completely opening the door of a freezing compartment. The refrigerator includes the freezer compartment, the deep-temperature freezer compartment, a thermoelectric module, the door, and a deep-temperature freezer basket.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator equipped with a deep freezer compartment.

In general, a refrigerator is a home appliance that stores food at a low temperature, and includes a refrigerator compartment for storing food in a refrigerated state in the range of 3°C and a freezer compartment for storing food in a frozen state in the range of -20°C.

However, when food such as meat or seafood is stored in a frozen state in the current freezer, moisture in the cells of meat or seafood escapes out of the cells while the food is frozen at -20°C, destroying the cells and defrosting. There is a phenomenon in which the texture changes.

However, by making the storage room temperature significantly lower than the current freezer temperature so that the food quickly passes through the freezing point temperature range when the food is changed to a frozen state, cell destruction can be minimized. There is an advantage that the texture can return to a state close to the state before freezing. The cryogenic temperature may be understood as referring to a temperature in the range of -40°C to -50°C.

For this reason, in recent years, there is a trend of increasing demand for a refrigerator equipped with a deep freezer compartment maintained at a temperature lower than the freezing compartment temperature.

In order to satisfy the demand for the deep-temperature freezer compartment, there is a limit to cooling using the existing refrigerant, so an attempt is made to lower the temperature of the deep-temperature freezer compartment to a cryogenic temperature using a thermoelectric element (TEM).

On the other hand, in order to open and close the deep-temperature freezer compartment, the drawer of the deep-temperature compartment must be taken out after rotating the door of the freezer compartment to open and close the front of the freezer compartment, and at this time, by a door basket for storage inside the freezer compartment door. The drawer's withdrawal path is interfered, and in order to avoid the interference, the freezing compartment door must be completely opened.

In addition, when the freezer door must be completely opened, there is a space limitation due to the installation of the refrigerator, and energy loss for maintaining the refrigerator temperature may occur.

The present invention has been conceived to solve the above-described problem, and an object of the present invention is to disclose a refrigerator capable of withdrawing the door of the deep-temperature freezing compartment without completely opening the door of the freezing compartment.

In the refrigerator according to the present invention for achieving the above object, even if the freezer door is partially opened by matching the width of the deep-temperature freezing compartment door with the width of the storage space, the freezing compartment door when the deep-temperature freezing compartment door is pulled out from the housing of the deep-temperature freezing compartment. Try not to interfere with your basket.

In addition, by forming protruding members on both sides of the front side of the deep-temperature freezing compartment door, it is intended to more firmly couple the deep-temperature freezing compartment door to the housing of the deep-temperature freezing compartment.

On the other hand, the refrigerator according to an embodiment of the present invention for implementing the above-described problem solving means, is partitioned from the freezing chamber in the freezing chamber and the freezing chamber with an open front, a housing having an opening formed in the front surface and the housing can be slid In contact with the heat absorbing surface with a core temperature freezer compartment including a core temperature freezer compartment door that is provided to open and close the opening, a heat absorbing surface facing the deep temperature freezer compartment, and a heating surface defined as a surface opposite to the heat absorbing surface And a heat sink positioned in a direction opposite to the cold sink in contact with the heating surface and rotated in the freezing chamber to open and close the freezing chamber and a thermoelectric element module provided at the rear of the deep-temperature freezing compartment It is possible to be coupled, including a door provided with a basket therein, and provided in the interior of the deep-temperature freezing compartment, and a deep-temperature freezing compartment basket that can be inserted and withdrawn from the housing as the deep-temperature freezing compartment door opens and closes the opening, The width of the deep-temperature freezing compartment door is smaller than the width of the housing.

The refrigerator according to an embodiment of the present invention has one or more of the following effects.

First, the deep-temperature freezing compartment door can be withdrawn without interference with the basket of the freezing compartment door even if the freezing compartment door is not completely open.

Second, protruding members are provided on both sides of the deep-temperature freezing compartment door, so that the deep-temperature freezing compartment door can be firmly fixed to the housing of the deep-temperature freezing compartment in a direction perpendicular to the withdrawal direction without shaking.

Third, since the door of the freezer compartment is partially opened and the door of the deep-temperature freezer compartment can be withdrawn, energy for maintaining the temperature inside the freezer compartment may be saved.

1 is a view in which a door of a refrigerator according to an embodiment of the present invention is opened.
Figure 2 is a view showing the deep freezer compartment of Figure 1;
3 is a view showing a thermoelectric device module according to an embodiment of the present invention.
4 is a view showing a refrigeration cycle applied to a refrigerator according to an embodiment of the present invention.
5 to 7 are internal perspective views of a refrigerator according to an embodiment of the present invention.
8 is an inner case and a shroud according to an embodiment of the present invention.
9 to 11 are thermoelectric device modules according to an embodiment of the present invention.
10 and 11 are thermoelectric device modules according to an embodiment of the present invention.
12 to 27 are deep-temperature freezer compartments according to an embodiment of the present invention.

Hereinafter, a conventional drawing for understanding the present invention capable of realizing the above object will be described with reference to the accompanying drawings and a preferred embodiment of the present invention.

In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms specifically defined in consideration of the configuration and operation of the present invention may vary according to the intention or custom of users or operators.

Further, in the present invention, terms such as first and/or second may be used to describe various components, but the components are not limited to the terms. The terms are only for the purpose of distinguishing one component from other components, for example, within a range not departing from the scope of the rights according to the concept of the present invention, the first component may be referred to as the second component, Similarly, the second component may also be referred to as a first transport element.

Definitions of these terms should be made based on the contents throughout the present specification.

In the present invention, the term "deep temperature" refers to a temperature lower than -20 degrees Celsius, which is a typical freezing storage temperature of the freezer, and the range is not limited numerically. In addition, even in a deep greenhouse (deep freezer compartment), the storage temperature includes minus 20 degrees Celsius and may be higher.

1 is a view showing an open door of a refrigerator according to an embodiment of the present invention, FIG. 2 is a view showing the deep-temperature freezing compartment of FIG. 1, and FIG. 3 is a thermoelectric device module according to an embodiment of the present invention. 4 is a diagram showing a refrigeration cycle applied to a refrigerator according to an embodiment of the present invention.

1 to 4, a refrigerator 1 according to an embodiment of the present invention includes a refrigerator main body 2 in the form of a rectangular exemption and opening and closing each space of the refrigerator 1 in front of the main body 2 It has a refrigerator door. The refrigerator 1 of the present invention has a bottom freezer structure in which the refrigerating compartment 20 is provided at the top and the freezing compartment 10 is provided at the bottom, and the refrigerating compartment 20 and the freezing compartment 10 have hinges at both ends ( It has a double-door door that rotates and opens based on 8).

However, the present invention is not limited to a refrigerator having a bottom freezer structure, and if a refrigerator having a structure capable of installing a deep-temperature freezing compartment in a freezer compartment, a refrigerator having a side-by-side structure in which the refrigerating compartment and the freezer compartment are disposed left and right, It can also be applied to refrigerators having a top mount structure in which the freezer compartment is disposed above the refrigerating compartment.

The refrigerator main body 2 includes an outer case 3 constituting the exterior and an inner case 4 constituting the interior of the refrigerator compartment 20 and the freezing compartment 10 and is installed with a predetermined space between the outer case 3 and the outer case 3. Include. Insulation is foamed and filled in the space between the outer case 3 and the inner case 4 to insulate the refrigerating chamber 20 and the freezing chamber 10 from the indoor space.

In the storage space of the refrigerator compartment 20 and the freezing compartment 10, shelves 7 and drawers 11 are installed to store food by increasing space utilization efficiency, and the shelves 7 and drawers 11 are located on the left and right. It may be guided along the arranged rail 14 and installed in the storage space. A door basket 9 is installed inside the refrigerator compartment door 5 and the freezing compartment door 6 as shown, and is suitable for storing containers such as beverages.

The deep-temperature freezing compartment 100 according to an embodiment of the present invention is provided in the freezing chamber 10. The space of the freezing chamber 10 is divided left and right for efficient use, which is partitioned by a partition wall 12 extending vertically from the center of the freezing chamber. Referring to FIG. 2, the partition wall 12 is installed by being fitted inward from the front of the cabinet, and may be supported in the freezing chamber 10 through an installation guide 13 provided on the bottom of the refrigerator.

According to an embodiment of the present invention, it is illustrated that the deep-temperature freezing compartment 100 is located in the upper right of the freezing compartment 10. However, it is not limited that the deep-temperature freezing compartment 100 of the present invention must be provided in the freezing chamber. That is, the deep-temperature freezing compartment 100 according to an embodiment of the present invention may be provided in the refrigerating compartment 20. However, when the deep-temperature freezing compartment 100 is disposed in the freezing compartment 10, the temperature difference between the inside and the outside (freezer atmosphere) of the deep-temperature freezing compartment 100 is smaller, so from the viewpoint of preventing leakage of cold air or insulation, the freezing compartment ( 100) it will be more advantageous to install.

Meanwhile, the thermoelectric device module 200 is an assembly in which a cold sink 210, a thermoelectric device 230, an insulating material 220, and a heat sink 240 are stacked and installed on the module housing 250 to form a module. .

The thermoelectric device 230 is a device using the Peltier effect. The Peltier effect refers to a phenomenon in which when a DC voltage is applied to both ends of two different devices, heat is absorbed on one side and heat is generated on the other side according to the direction of the current.

The thermoelectric element is a structure in which an n-type semiconductor material whose electrons are the main carrier and a p-type semiconducting material whose holes are carriers are alternately connected in series. The first surface is a p-type semiconductor material based on a direction in which current flows. An electrode portion that allows current to flow from the material to the n-type semiconductor material is disposed, and an electrode portion that allows current to flow from the n-type semiconductor material to the p-type semiconductor material is placed on the second surface to supply current in the first direction. When the first surface becomes a heat absorbing surface and the second surface becomes a heating surface, and when current is supplied in a second direction opposite to the first direction, the first surface becomes a heating surface and the second surface becomes a heat absorbing surface.

According to an embodiment of the present invention, since the thermoelectric device module 200 is inserted and fixed from the rear of the grill fan assembly 15 to the front, and the deep-temperature freezing compartment 100 is provided in front of the thermoelectric device module 200, the thermoelectric device Endothermic heat occurs on the surface forming the front of the element 230, that is, the surface facing the deep-temperature freezing compartment 100, and the surface forming the rear of the thermoelectric element, that is, the surface facing the deep-temperature freezing compartment 100 or the deep-temperature freezing compartment ( 100) can be configured to generate heat on the opposite side of the facing direction. In addition, by supplying current in the first direction so that heat absorption occurs on the surface facing the deep-temperature freezing compartment 100 from the thermoelectric element 230 and heat is generated on the opposite surface, the deep-temperature freezing compartment 100 can be frozen. do.

In one embodiment of the present invention, the thermoelectric element 230 has a shape such as a flat plate having a front and a rear surface, and the front surface becomes the heat absorbing surface 230a and the rear surface becomes the heating surface 230b. The DC power supplied to the thermoelectric element 230 causes a Peltier effect, and accordingly, the heat of the heat absorbing surface 230a of the thermoelectric element 230 is moved toward the heating surface 230b. Therefore, the front surface of the thermoelectric element 230 becomes a cold surface, and the rear surface becomes a heat-generating part. That is, it can be said that the heat inside the deep-temperature freezing compartment 100 is discharged to the outside of the deep-temperature freezing compartment 100. Power supplied to the thermoelectric element 230 may be applied to the thermoelectric element 230 through a wire provided in the thermoelectric element 230.

The cold sink 210 is stacked in contact with the front surface of the thermoelectric element 230, that is, the heat absorbing surface 230a facing the deep-temperature freezing compartment 230. The cold sink 210 may be made of a metal material or alloy material such as aluminum having high thermal conductivity, and a plurality of heat exchange fins 211 extending in the vertical direction are formed spaced apart from each other on the front surface thereof. It is preferable that the heat exchange fins 211 have a shape that extends vertically and continuously extend without interruption. This is to ensure that water melted in the cold sink when defrosting the cold sink 210 flows smoothly along the continuous shape of the heat exchange fins 211 extending vertically in the direction of gravity. It is preferable that the distance between the heat exchange fins 211 be minimized so that water formed between the two adjacent heat exchange fins 211 is prevented from flowing down due to surface tension.

In the cold sink 210 attached to the heat absorbing surface of the thermoelectric element, the air inside the deep-temperature freezing compartment 100 flows and exchanges heat. The food in the deep-temperature freezing compartment 100 is cooled, and moisture containing air is A phenomenon of freezing occurs on the surface of the colder cold sink 210. In order to remove such frozen water, power is applied in the supply direction of the current described above, that is, in the second direction opposite to the first direction. Then, the heat absorbing surface and the heating surface of the thermoelectric element 200 are changed to each other compared to when power is applied in the first direction. Accordingly, the surface of the thermoelectric element in contact with the heat sink acts as a heat absorbing surface, and the surface in contact with the cold sink 210 acts as a heat generating surface. Therefore, the frozen water frozen in the cold sink 210 is melted and flows down in the direction of gravity, thereby defrosting. That is, according to the present invention, when condensation occurs in the cold sink 210 and defrost is required, a current is applied in a second direction opposite to the first direction, which is the direction of the current applied to cause the deep temperature cooling action. It is possible to defrost.

A heat sink 240 is stacked in contact with the rear surface of the thermoelectric element 230, that is, the heating surface 230b facing the direction in which the core temperature and freezing compartment 100 is disposed. The heat sink 240 is a configuration for rapidly dissipating or dissipating heat generated on the heating surface 230b due to the Peltier effect, and corresponds to the evaporator 37 of the refrigeration cycle cooling device 30 used for cooling the refrigerator. The heat sink 240 may be configured as a part. That is, when the heat sink 240 causes the process of absorbing heat or the process of evaporating while absorbing heat by the low temperature and low pressure liquid refrigerant passing through the expansion device 35 on the refrigeration cycle, the heating surface 230b of the thermoelectric element 230 ) Is evaporated while the refrigerant absorbs or absorbs the heat generated in the refrigeration cycle, so that the heat of the heating surface 230b can be cooled very immediately.

Since the above-described cold sink 210 and heat sink 240 are stacked on each other with the thermoelectric element 230 having a flat shape therebetween, it is necessary to isolate the heat therebetween. Therefore, the thermoelectric device module 200 of the present embodiment surrounds the thermoelectric device 230 and fills the gap between the cold sink 210 and the heat sink 240. That is, the area of the cold sink 210 is larger than that of the thermoelectric element 230 and is substantially the same as the area of the thermoelectric element 230 and the heat insulating material 220. Likewise, the area of the heat sink 240 is substantially the same as the area of the thermoelectric element 230 and the heat insulating material 220.

Meanwhile, the cold sink 210 and the heat sink 240 do not have to have the same size as each other, and it is possible to configure the heat sink 240 to be larger in order to effectively dissipate heat.

However, according to this embodiment, the inlet pipe 241 and the outlet pipe 243 pass through the heat sink 240 so that the heat discharging efficiency of the heat sink 240 can occur immediately and reliably. ) Of the refrigerant flows, but the refrigerant flow path is arranged over the entire area of the heat sink 240 so that the refrigerant evaporates in the heat sink 240 and heats from the heating surface of the thermoelectric element 230 as vaporization heat. It was made to absorb quickly. In addition, a pipe through hole 255 is formed in the module housing 250 so that the inlet pipe 241 and the outlet pipe 243 can be provided through the pipe through hole 255.

That is, the size of the heat sink 240 shown in this embodiment is designed to have a size sufficient to immediately absorb and discharge heat generated by the thermoelectric element 230, and the cold sink 210 is Can have a small size. However, in this embodiment, considering that the cold sink 210 is a heat exchange between gas and solid, while the heat sink 240 is a liquid to solid heat exchange, the size of the cold sink 210 is further increased. It is worth noting that the heat exchange efficiency of the cold sink 210 side is also made higher. In the extent to which the size of the cold sink is enlarged, in this embodiment, the cold sink is designed to have a size corresponding to the heat sink in consideration of the compactness of the thermoelectric device module, but the heat exchange efficiency of the cold sink is further increased. For this reason, the cold sink may be larger than the heat sink.

On the other hand, the module housing 250 includes a cold sink 210, a thermoelectric element 230, an insulating material 220, and a receiving portion 251 in which the heat sink 240 is stacked and accommodated. A fixing part 257 is provided on the opposite surface of the formed module housing 250 to fix the module housing 250 to the inner case 4. In addition, a fastening boss 253 is formed in the receiving part 251, and the cold sink 210, the heat insulating material 220, and the heat sink 240 are formed with through holes at positions corresponding to the fastening boss 253. The fastening member 213 is inserted into the through hole and coupled to the fastening boss 253 to accommodate the stacked cold sink 210, thermoelectric element 230, heat insulating material 220, and heat sink 240 It may be fixed to the part 251.

Meanwhile, the refrigeration cycle cooling device 30 of the refrigerator according to the present embodiment is a device that discharges heat from the inside of the freezer to the outside of the refrigerator through a refrigerant that undergoes a thermodynamic cycle of evaporation, compression, condensation, and expansion. The compressor 31 and the condenser 33 of the cooling device 30 are located in a machine room separated from the freezing chamber 100 at the rear and lower portions of the freezing chamber 100, and the space forming the freezing chamber and the rear of the inner case 4 Between the walls, a grill fan assembly 15 including a grill fan defining a rear wall of the freezing chamber and a shroud that is coupled to the rear of the grill fan to distribute cool air in the cooling chamber is installed.

In addition, an evaporator 37 of the refrigeration cycle cooling device 30 is installed in a predetermined space between the grill fan assembly 15 and the rear wall of the inner case 4. When the refrigerant inside the evaporator 37 evaporates, the evaporating refrigerant exchanges heat with the air flowing through the freezer compartment 10, and the air cooled by this heat exchange is defined by the grill fan and the shroud. The freezing chamber 10 is cooled by being distributed in the cold air distribution space and flowing through the freezing chamber 10.

The refrigeration cycle cooling apparatus of the present invention pressurizes the evaporator 37 in which a liquid refrigerant in a low pressure atmosphere heat exchanges with air and evaporates in a cooling chamber (space between the grill fan assembly and the inner housing), and the gaseous refrigerant vaporized in the evaporator. The compressor 31 discharges the high-temperature and high-pressure gas refrigerant, and the high-temperature and high-pressure gas refrigerant discharged from the compressor exchanges heat with air outside the refrigerator (machine room) and condenses to dissipate heat. And an expansion device 35 such as a capillary tube for pressure dropping the refrigerant into a low-temperature atmosphere. The low-temperature, low-pressure refrigerant in the liquid phase whose pressure has been reduced in the expansion device 35 is again introduced into the evaporator.

According to the present invention, since the heat of the heat sink 240 of the thermoelectric device module 200 needs to be quickly cooled, a low-temperature, low-pressure liquid refrigerant whose pressure and temperature are lowered after passing through the expansion device 35 is transferred to the evaporator 37 It is configured to first pass through the heat sink 240 of the thermoelectric device module 200 before flowing into the unit.

More specifically, the compressor 31 pressurizes the low-temperature and low-pressure gaseous refrigerant to discharge the high-temperature and high-pressure gaseous refrigerant. And this refrigerant generates heat in the condenser 33 and condenses, that is, liquefied. As described above, these compressors 31 and condensers 33 are disposed in the machine room of the refrigerator.

The high-temperature, high-pressure liquid refrigerant liquefied through the condenser 33 passes through a device such as an expansion valve such as a capillary tube, and flows into the evaporator 37 while the pressure is reduced. In the evaporator 37, the refrigerant absorbs surrounding heat and evaporates. According to the present embodiment, the refrigerant passing through the condenser 33 is branched to the refrigerating chamber side evaporator 37b or the freezing chamber side evaporator 37a, wherein the heat sink 240 of the thermoelectric element module 200 is on the flow path of the refrigerant. It is provided in front of the freezing chamber side evaporator (37a), and is disposed in the rear of the expansion device (35).

The deep freezer compartment 100 is a space that must maintain a maximum of minus 50 degrees Celsius, and it is necessary to keep the heating surface 230b of the thermoelectric element 230 very cold, so that the heat absorbing surface 230a can be kept cooler than that. It's smooth. Therefore, by placing the portion of the heat sink 240 passing through the refrigerant in front of the flow bed of the refrigerant rather than the evaporator 37a on the freezing chamber side, the coolest state can be maintained. In particular, since the heat sink 240 directly contacts the thermoelectric element 230 and absorbs heat from the thermoelectric element 230 in a conduction method through a heat conductor such as metal, the heating surface 230b of the thermoelectric element 230 You can cool down for sure.

On the other hand, when the deep freezer compartment 100 is not cooled to a core temperature of minus 50 degrees Celsius, and wants to use it at minus 20 degrees Celsius like a normal freezer, simply do not supply power to the thermoelectric element 230 to use a general freezer compartment. It is possible to use. In this case, if power is not applied to the thermoelectric element 230, heat absorption and heat generation do not occur in the heat sink 240 of the thermoelectric element 230. Therefore, the refrigerant passing through the heat sink 240 does not absorb heat and thus flows into the freezing chamber side evaporator 37a in a liquid refrigerant state that has not evaporated.

Hereinafter, in this embodiment, that the freezing compartment door 6 is completely opened means that the door basket 9 of the freezing compartment door 6 is located outside the front of the freezing compartment 10, as shown in FIG. Open means that a part of the door basket 9 is located in front of the freezing compartment 10.

In addition, although some configurations having the same name are disclosed, the configurations are different from each other, and the reference numerals in the drawings are different and differently distinguished and described throughout the specification. For example, in FIG. 18, different configurations are named with the same name as'hook', but the hook 153 formed in the deep-temperature freezing compartment basket 150 and the hook 1313 formed in the deep-temperature freezing compartment door 130 are As different configurations, reference numerals in the drawings are different and differently distinguished and described throughout the present specification.

5 to 7 are internal perspective views of a refrigerator according to an embodiment of the present invention, and FIG. 8 is a view showing an inner case and a shroud according to an embodiment of the present invention.

5 to 8, the refrigerator according to the present embodiment includes a refrigerating compartment 20 with an open front and a freezing compartment 10 with an open front and partitioned from the refrigerating compartment 20. Inside, a deep-temperature freezing compartment 100 forming a separate space separated from the inside of the freezing compartment 10 may be provided. The core-temperature freezing compartment 100 may be detachably provided inside the freezing compartment 10 for maintenance.

In detail, the interior of the freezing compartment 10 may be divided into a space inside the freezing compartment 10 through a partition wall fitted to the installation guide 13, and the deep-temperature freezing compartment 100 may be any of the divided spaces. Can be inserted into one. At this time, a guide rail 16 is provided on the inner side wall of the freezing chamber 10, and a guide member slidable to the guide rail 16 is formed on the outer side of the housing 110, so that the guide member is formed with the guide rail ( By moving along 16), the deep-temperature freezing compartment 100 may form a structure capable of entering and leaving any of the internally partitioned spaces of the freezing compartment 10.

A refrigeration evaporation chamber 40 is located behind the freezing chamber 10, and a refrigeration cycle cooling device 30 may be provided in the refrigeration evaporation chamber 40, and the freezing evaporation chamber 40 and the freezing chamber 10 It may be partitioned by the grill pan assembly 15 and the inner case 4.

The grill pan assembly 15 may include a grill pan 15a, a shroud 15b, and a fan 17 to form a rear surface of the freezing compartment 10, and the grill pan 15a includes a fan 17 By forming an upper passage (18a) and a lower passage (18b) in the upper and lower portions of the fan 17, the air that is discharged from the fan 17 and introduced into the deep-temperature freezing compartment 100 circulates inside the deep-temperature freezing compartment 100 It is possible to form a flow path. A flow path formed inside the deep-temperature freezing compartment 100 will be described later.

Meanwhile, a thermoelectric device module 200 is located between the shroud 15b and the inner case 4, and the fan 17 is located in front of the thermoelectric device module 200, and the fan 17 In the front of the deep-temperature freezing compartment 100 is located. Here, the front side means a surface from the inner case 4 of the freezing compartment 10 toward the inside of the freezing compartment 10, and the rear side is the inner case 4 of the freezing compartment 10 from the inside of the freezing compartment 10 It means the side facing in the) direction.

That is, the fan 17 is provided to supply cold air of'core temperature' by the thermoelectric element module 200 to the core temperature freezing compartment 100, and a fan that supplies cold air to the freezing chamber 10 and May be provided separately. A fan for supplying cold air to the freezing chamber 10 may be provided in a freezing chamber fan mounting hole 153h located at the rear of the freezing chamber 10.

Meanwhile, a conductive wire L is passed through and drawn out to one side of the housing 110 to supply power to the hot wire 1117 formed along the circumference of the opening 111. The housing 110 has a large internal and external temperature difference, so that a phenomenon in which liquid is frozen may occur around the opening 111 and the deep-temperature freezing compartment door 130, so that the heating wire is provided to melt the frozen liquid. have. In addition, by supplying an induced current to a part of the core temperature and freezing compartment door 130 through the conducting wire L, the deep temperature and freezing compartment 100 may be more firmly sealed. That is, the conducting wire L may supply power to a load that may be provided in the deep-temperature freezing compartment 100.

The conducting wire L may be positioned along the guide rail 16 to be guided together when the deep-temperature freezing compartment 100 is brought in and withdrawn along the guide rail 16. If the lead wire (L) is caught in the gap between the housing 110 and the side of the freezing chamber 10, the lead in and out of the core temperature freezer compartment 100 is not smooth, and furthermore, the cover of the lead wire L is peeled off, causing a breakdown. , Since it may be exposed to the risk of an accident, the conducting wire L may be guided in the groove of the guide rail 16.

Referring to the enlarged view of the lower side of the housing 110 of FIG. 12, a hole 110h is formed on one side of the guide member protruding from the lower portion of the housing 110, and the conducting wire L is formed through the hole 110h. ) May be drawn out of the housing 110.

Referring to Figs. 21 and 22, looking at the structure in which the deep-temperature freezing compartment 100 is separated from the inside of the freezing compartment 10, the freezing compartment 10 forms a space with an open front side, A guide rail 16 is extended toward the direction, and the guide rail 16 has a fixing member 161 coupled to the fitting groove 115 formed in the housing 110 on the rear side of the freezing chamber 10 Can be.

The fixing member 161 is elastically supported on the top of the guide rail 16, and when it is coupled to the fitting groove 115, the position of the fixing member 161 may be elastically deformed and then restored. The elastic deformation and restoration means that the degree of protrusion of the fixing member 161 from the upper portion of the guide rail 16 is elastically deformed, and when coupled to the fitting groove 115, the degree of protrusion depends on the elastic force. Can be restored by

In detail, the fixing member 161 is provided in a semicircular shape having a curvature, and may be formed to protrude from a position close to the rear side of the freezing chamber 10 from the upper portion of the guide rail 16. One side of the guide rail 16 is located in the front of the freezing compartment 10, and the other side of the guide rail 16 is located in the rear of the freezing compartment 10, and the freezing compartment 10 from the front of the freezing compartment 10 ) Is formed to extend to the rear surface, and the fixing member 161 may be formed to protrude from the upper portion of the other side of the guide rail 16.

If the fixing member 161 is formed on one side of the guide rail 161 (a portion facing the front of the freezing chamber), the deep-temperature freezing compartment 100 is interfered with friction when entering and drawing out the freezing chamber 10 This may occur, and the rear surface of the deep-temperature freezing compartment 100 must be in contact with the grill fan assembly 15 to prevent the cold air generated from the thermoelectric device module 200 from flowing into the freezing compartment 10, It is preferable that the fixing member 161 is formed at a position close to the rear side of the freezing chamber 10.

Further, the fixing member 161 may be formed as a groove corresponding to the outer shape of the fixing member 161 so that the fixing member 161 is in surface contact with the insertion groove 115, and the fixing member 161 of the present embodiment As) is provided in a semicircular shape having a curvature, the fitting groove 115 may be formed as a semicircular groove corresponding to the curvature.

Therefore, through the combination of the fixing member 161 and the fitting groove 115, it is possible to prevent the housing 110 from being pulled out from the freezing compartment 10 when the user pulls out the core temperature freezer door 130. In addition, when the housing 110 is pulled out, the user must pull the housing 110 so that the protruding degree of the fixing member 161 is elastically deformed.

9 to 11 are thermoelectric device modules according to an embodiment of the present invention.

9 to 11, the deep-temperature freezing compartment 100 forms a separate space partitioned from the freezing compartment 10 in the freezing compartment 10, and the temperature of the deep-temperature freezing compartment 100 is It may be kept lower than the temperature of the freezing chamber 10. A thermoelectric element module 200 may be provided at the rear of the core temperature and refrigeration compartment 100 in order to maintain the temperature of the deep temperature and refrigeration compartment 100 at'core temperature', and the thermoelectric device module 200 is the core temperature and refrigeration compartment. A thermoelectric element 230 including a heat absorbing surface 230a facing 100 and a heating surface 230b defined as a surface opposite to the heat absorbing surface, and a cold sink 210 positioned in contact with the heat absorbing surface 230a And a heat sink 240 positioned in a direction opposite to the cold sink 210 by contacting the heating surface 230b. As described above, the thermoelectric element module 200 may be fixed to the inner case 4 at the rear of the deep temperature and refrigeration compartment 100 and may be positioned at the rear of the deep temperature and refrigeration compartment 100.

In detail, an outer case 3 forming the exterior of the refrigerator and an inner case 4 which is installed with a predetermined space from the outer case 3 and constitutes the interior of the freezing chamber 10 are provided, and the inner case ( The cooling device 30 is provided in a predetermined space between 4) and the outer case 3. In addition, a grill fan assembly 15 is stacked on the front surface of the inner case 4 to form the inner rear surface of the copper chamber 10.

That is, some of the predetermined space may form a freezing and evaporation chamber 40, and the freezing and evaporation chamber 40 may be partitioned from the freezing chamber 10 by the grill pan 15a, and the grill pan ( A shroud 15b forming a flow path for supplying cold air generated in the freezing and evaporation chamber 40 to the freezing chamber 10 may be coupled to the rear surface of 15a). The rear surface of the grill pan 15a means a direction from the grill pan 15a toward the freezing and evaporation chamber 40, and the freezing and evaporation chamber 40 includes a grill pan assembly 15 and an inner case 4 ), but the grill pan assembly 15 forms the rear surface of the freezing chamber 10, so that the grill pan 15a of the grill pan assembly 15 forms a freezing and evaporation chamber. It can also be considered that 40 and the freezing compartment 10 are divided.

The thermoelectric device module 200 is fixed to the inner case 4 to be located at the rear of the portion of the grill pan 15a where the fan 17 is located between the inner case 4 and the grill pan 15a. I can.

In this embodiment, the thermoelectric device module is described as referring to the cold sink 210, the thermoelectric device 230, the heat insulating material 220, and the heat sink 240, and the module housing 250 is the thermoelectric device module. It is described as referring to a configuration in which (210, 220, 230, 240) are stacked to form the receiving portion 251 to be accommodated.

An accommodating part 251 for accommodating the thermoelectric element module is formed on one surface of the module housing 250, and a fixing part 257 for fastening to the inner case 4 is formed on the other surface opposite to the one surface. The top portion 257 may be forcibly fitted into the groove 41 formed in the inner case 4.

The fixing part 257 is in contact with the inner case 4, but a circumference smaller than the circumference of the support member 2571 and the support member 2571 formed in a cylindrical shape that is not inserted into the groove 41 It may include an insertion member 2573 that forms a circumference and extends to be spaced apart from each other at positions facing each other at the support member 2571 and is inserted into the groove 41.

The insertion member 2573 is formed extending in the longitudinal direction of the support member 2571 from the cross-section of the support member 2571, and is provided at a predetermined interval at positions opposite to each other, so that the insertion member 2573 is disposed in the groove When inserted into (41), it may be elastically deformed within the range of the predetermined interval. When the insertion member 2573 is inserted into the groove 41, the insertion member 2573 may contact a portion of the inner circumferential surface of the groove 41.

In detail, the insertion member 2573 forms a wider circumference than the inner circumference of the groove 41 so that it can be forcibly fitted into the groove 41, and when the insertion member 2573 is inserted into the groove 41 It may be elastically deformed by the range of the predetermined interval and inserted into the groove 41.

Looking at the connection of the refrigerant pipe of the thermoelectric element module, first, the thermoelectric element modules are stacked on each other and provided in the receiving part 251 formed in the module housing 250, and the inlet pipe 241 and the outlet pipe 243 are It may be provided through the wiring through hole 255 of the module housing 250. After temporarily fixing the module housing 250 to the inner case 4, a refrigerant pipe is connected to the inlet pipe 241 and the outlet pipe 243.

That is, in order to pipe the refrigerant to the inlet pipe 241 and the outlet pipe 243, the module housing 250 must be temporarily fixed to the inner case 4, and at the same time, the inner case 4 so that the pipe can be located. ), the support member 2571 forms a space spaced at a constant distance between the inner case 4 and the module housing 250, and provides the module housing 250 Support, and the insertion member 2573 may be inserted into the groove 41 to temporarily fix the module housing 250 to the inner case 4.

12 to 27 are deep temperature freezer compartments according to an embodiment of the present invention.

12 to 27, the refrigerator according to the present embodiment includes a refrigerating compartment 20 with an open front and a freezer compartment 10 with an open front and partitioned from the refrigerating compartment 20. Inside, there is provided a housing 110 partitioned from the freezing chamber 10 and having an opening 111 formed on the front side thereof, and a deep-temperature freezing compartment door 130 that is slidably provided in the housing 110 to open and close the opening 111. A deep-temperature freezing compartment 100 may be provided. In addition, the deep-temperature freezing compartment 100 may be detachably provided inside the freezing compartment 10 for maintenance.

That is, the always-on deep-temperature freezing compartment 100 forms an opening 111 and is slidably provided in the housing 110 and the housing 110 forming the inner space of the deep-temperature freezing compartment 100 to form the opening 111. It may include a deep freezer compartment door 130 that opens and closes. In more detail, a guide part 170 is provided at the lower part of the deep-temperature freezing compartment door 130, and the guide part 170 is movable along a guide rail formed inside the housing 110 so that the deep-temperature freezing compartment The door 130 may be provided to be slidable into the inner space of the housing 110.

Meanwhile, in the freezing compartment, as the door 6 rotates, the opened front of the freezing compartment 6 may be opened and closed, and the door 6 rotates to open the front of the freezing compartment, so that the deep temperature freezing compartment 100 As it is opened and the deep-temperature freezing compartment door 130 slides on the housing 110 to open and close the opening 111 of the housing, the deep-temperature freezing compartment basket 150 is drawn in and out of the housing 110, (100) Food can be stored or taken out inside.

Meanwhile, protruding members 113 protruding from the front of the opening 111 are provided on both sides of the deep-temperature freezing compartment door 130 so that the deep-temperature freezing compartment door 130 contacts the opening 111 to seal the opening. In this case, it is possible to prevent the deep temperature and freezing compartment door 130 from shaking.

That is, the width of the deep-temperature freezing compartment door 130 is provided to be smaller than the width of the housing 110, so that the difference between the width of the deep-temperature freezing compartment door 130 and the width of the housing 110 is equal to the 130) may be less interfered with by the door basket 9 of the freezer door 6.

More specifically, the deep-temperature freezing compartment door 130 has a first width h1, the deep-temperature freezing compartment basket 150 has a second width h2, and the protruding member 113 has a third width h3 ), and the housing 110 may have a fourth width h4.

Here, the first width h1 may be provided smaller than the fourth width h4, and preferably may be provided larger than the second width h2. That is, the width (h1) of the deep-cooling compartment door is provided smaller than the width (h4) of the housing, so that interference by the door basket 9 is prevented even if the freezing compartment door 6 is not completely opened by the difference in width (h4-h1). Do not receive. However, the width (h1) of the deep-temperature freezing compartment door is provided larger than the width of the deep-temperature freezing compartment basket (h2) so that the deep-temperature freezing compartment basket 150 can be stably fixed to the deep-temperature freezing compartment door 130. It is desirable. However, it is not necessarily limited to this embodiment, and the first width h1 may match the second width h2.

That is, the first width h1 is provided with a width smaller than the fourth width h4 in order to minimize interference by the door basket 9 of the freezing compartment door 6, but is equal to or equal to the second width h2 It may be provided larger.

In addition, in this embodiment, the sum of the first width h1 and the third width h3 of the protruding member 113 for stable coupling between the core temperature and freezing compartment door 130 and the housing 110 is the housing 110 It may coincide with the sum of the fourth width h4 of ). At this time, since the protruding members 113 are provided on both sides of the deep-temperature freezing compartment door 130, when the first width h1 and the third width h3 are doubled, the fourth width ( It can match the value of h4).

Meanwhile, a magnet 1115 may be provided in at least one of the deep-temperature freezing compartment door 130 or the opening 111 of the present embodiment, and the deep-temperature freezing compartment door 130 opens and closes the opening 111 by magnetic force. can do. Further, the deep-temperature freezing compartment door 130 may include a hook 1313 protruding toward the opening 111, and the hook 1313 is inserted into a coupling groove 1113 formed in the opening 111 The deep and cold compartment door 130 may be fixed to 111.

Since the inside of the deep-temperature freezing compartment 100 is maintained at a lower temperature than the inside of the freezer compartment, cold air must be prevented from flowing out of the deep-temperature freezing compartment as described above. The door 130 must be provided so as to be in close contact with the opening 111 to be opened and closed.

The magnet 1115 itself may be provided with a magnetic material, or may be provided with a magnetic material when a current flows, and a lead wire L drawn out of the deep-temperature freezing compartment 100 It can also be supplied with current by Accordingly, the user may adjust the degree to which the deep-temperature freezing compartment door 130 is sealed by contacting the opening 111 by adjusting the magnetism according to the supply degree of current.

In addition, the magnet 1115 may be provided in one of the deep-temperature freezing compartment door 130 or the opening 111, as described above, but at positions corresponding to each other in the deep-temperature freezing compartment door 130 and the opening 111 It may be provided to perform a combination of each other by manpower. If the magnet 1115 is provided only in one of the core temperature freezer door 130 or the opening 111, the portion where the magnet 1115 is not provided must be made of a material such as iron to which the magnet is attached. The weight, cost, and the like of the entire compartment 100 may be increased. Therefore, as in the above-described example, when magnets are provided in each of the deep-temperature freezing compartment door 130 and the opening 111 to perform the coupling by manpower to each other, the material of the deep-temperature freezing compartment door 130 or the opening 111 is insulated. There is an advantage that can be adopted as the optimal material for

On the other hand, the hook 1313 is formed protruding from the deep-temperature freezing compartment door 130 toward the opening 111 and is elastically supported by the deep-temperature freezing compartment door 130 in the gravitational direction so that the hook 1313 is connected to the coupling groove. When inserted into the 1113, the position of the hook 1313 may be elastically deformed and then restored.

The elastic deformation and restoration means that while the hook 1313 is inserted into the coupling groove 1313, the hook 1313 moves upward while receiving an elastic force, and the hook 1313 moves to the coupling groove 1313. When coupled to ), it means that the position of the hook 1313 is restored.

The hook 1313 may be elastically deformed and then restored as described above, or the hook 1313 is coupled to the coupling groove 1313 by a switch or button formed on one side of the deep-temperature freezing compartment door 130 Or disengagement.

On the other hand, in addition to opening and closing of the opening 111 of the core hot and cold compartment door 130 by the hook 1313, the coupling groove 1113, and the magnet 1115, the cold air inside the deep temperature freezer compartment 100 goes to the outside. A gasket 1311 may be formed along the circumference of the inner surface of the deep-temperature freezing compartment door 130 so as not to leak out, and the hook 1313 and the coupling groove (in a range outside the circumference formed by the gasket 1311) 1113), a magnet 1115 may be provided. When the hook 1313, the coupling groove 1113, and the magnet 1115 are provided in an area overlapping with the gasket 1311, the effect of preventing the outflow of cold air by the gasket 1311 may be significantly reduced. As described above, the hook 1313, the coupling groove 1113, and the magnet 1115 are preferably formed in a range outside the circumference of the gasket 1311.

On the other hand, a heating wire 1117 may be provided along the periphery of the opening 111, and the heating wire 1117 may be supplied with power from a conducting wire L that is drawn out of the deep-temperature freezing compartment 100, and , A hole 110h is formed at one side of the housing 110 so that the conducting wire L may pass through the deep-temperature freezing compartment 100 through the hole 110h and be drawn out.

The hole 110h is formed in the lower part of the deep-temperature freezing compartment 100 as described above, and the protruding members formed on both sides of the lower part of the deep-temperature freezing compartment 100 are guided by the guide rails 16 of the freezing compartment. It is located above the deep-temperature freezing compartment 100 may not be interfered with when entering and withdrawing the freezing compartment. In addition, on one side of the hole (110h), the upper portion of the hole (110h) to prevent accidents such as the lead wire (L) is caught in the inner wall of the deep temperature freezing compartment 100 and the freezing compartment 10 A cover member having a surrounding shape may be formed.

On the other hand, in the interior of the deep-temperature freezing compartment 100, as the deep-temperature freezing compartment door 130 is opened and closed, a deep-temperature freezing compartment basket 150 capable of being drawn in and withdrawn from the deep-temperature freezing compartment 100 may be provided, and the The deep-temperature freezing compartment basket 150 includes a hook 153 protruding from one side of the deep-temperature freezing compartment basket 150, and the hook 153 is formed on the inner surface of the deep-temperature freezing compartment door 130. It is inserted into the groove 1315 and the deep-temperature and freezing compartment basket 150 may be fixed to the deep-temperature and freezing compartment door 130.

Preferably, the deep-temperature and freezing compartment basket 150 may be provided to be detachable from the deep-temperature and freezing compartment door 130, and the deep-temperature and freezing compartment basket 150 is facing the inner surface of the deep-temperature and freezing compartment door 130. It is provided at a position opposite to the first surface 152 and the first surface 152 and may be formed as a second surface 151 on which a grill is formed, and the hook 153 is the first surface 152 ) Can be formed on top of.

In addition, a first support member 1521 is protruded from a lower portion of the first surface 152 to make contact with the inner surface of the deep-temperature freezing compartment door 130, and a second support member is provided under the second surface 151. The member 1511 may protrude to contact the bottom surface 112 of the housing 110.

The hook 153 of the deep-temperature freezing compartment basket 150 may be formed along the length direction of the first surface 152 of the deep-temperature freezing compartment basket 150 from the top of one surface of the deep-temperature freezing compartment basket 150, The groove 1315 of the deep-temperature freezing compartment door 130 may be formed to correspond to the length of the hook 153.

The hook 153 is located above the first surface 152 and is formed in a structure capable of being caught in the groove 1315 so that the deep-temperature and freezing compartment basket 150 is placed on the inner surface of the deep-temperature freezing compartment door 130. It is a structure that is hung and fixed. Accordingly, a first support member 1521 that contacts the inner surface of the deep-temperature and freezer compartment door 130 and supports the deep-heat freezer basket 150 is provided under the first surface 152. It may be formed to protrude from the bottom.

The second surface 151 may be defined as a surface on which a grill is formed, and the grill 151 may form an inlet through which cold air generated from the thermoelectric element module 200 located at the rear of the deep-temperature freezing compartment 100 is introduced. I can.

Meanwhile, a second support member 1511 is protruded under the grill 151 to make contact with the bottom surface 112 of the housing 110. The housing 110 has an opening 111 formed on the front surface, and is composed of a bottom surface 112, an upper surface 114, a rear surface, and a side surface, and the bottom surface 112 covers the inner surface of the housing 110. And the upper surface 114 forms the inner upper surface of the housing 110, the rear surface forms the inner rear surface of the housing 110, and the rear surface has a space for accommodating the fan 17 Since it is open, cold air of the thermoelectric device module 200 can flow into the interior of the housing 110, and the side surface forms a side surface extending in a depth direction from the front side of the housing 110 toward the rear side.

The deep-cooling compartment basket 150 of this embodiment has a hook 153 formed on the first surface 152 and is fitted into the groove 1315 of the deep-temperature freezer compartment door, and the groove 1315 and the hook ( The deep-temperature freezing compartment basket 150 rotates in a clockwise direction based on the portion 153 contacts with. Therefore, the horizontal position of the deep-temperature and freezing compartment basket 150 is fixed, and the hook (in the lower portion of the first surface 152), that is, the first surface 152, is more rigidly coupled to the deep-temperature freezing compartment door 130. A first support member 1521 may be formed that protrudes toward the inner surface of the deep-temperature freezing compartment door 130 from the opposite side of the upper portion where the 153 is formed to contact the inner surface of the deep-heat freezing compartment door 130.

In addition, as described above, in order to prevent the deep temperature and freezing compartment basket 150 from being dragged to the bottom surface 112 of the housing 110 as the deep temperature and freezing compartment basket 150 is inclined, the grill 151 The second support member 1511 may be formed to protrude from the lower portion of the housing and contact the bottom surface 112 of the housing. In addition, a contact member 1513 is formed on the second support member 1511 so that the contact member 1513 protrudes from the support member 1511 toward the direction of gravity, and directly contacts the bottom surface 112 of the housing. can do.

As the contact member 1513 is separately provided, the second support member 1511 may have a groove into which the contact member 1513 is inserted, and the contact member 1513 may be formed on the bottom surface 112 of the housing. ) By direct contact, the second support member 1511 can be injected through a series of processes with the same material as the deep-temperature freezing compartment basket 150, thereby simplifying the process, and the contact member 1513 is made of a POM material. It is made of a separate material having high strength, hardness, and rigidity including, and may be fitted to the second support member 1511.

The deep-temperature freezing compartment door 130 of this embodiment is provided to be slidably provided on a guide rail 173 formed under the housing 110, and the deep-temperature freezing compartment door 130 is inserted into the guide rail 173. In and out of the sliding method is implemented by the guide unit 170. Since the deep freezer compartment 100 of the present embodiment is maintained at a temperature of 40 degrees Celsius or less, the guide rail 173 is maintained at a temperature of about 20 degrees Celsius, unlike a general freezer, which is maintained at a temperature of about 20 degrees Celsius. It is formed in a portion outside the space maintained at a temperature below degrees Celsius to implement the sliding of the deep-temperature freezing compartment door 130.

If the guide rail is provided inside the housing 110, there is a possibility that more cold air may be leaked to the outside when the deep temperature freezer door 130 is opened, and furthermore, freezing between the guide rail and the guide part As a result, the sliding implementation of the deep-temperature freezing compartment door 130 may be hindered, and durability may be weakened. Therefore, the guide rail 173 of the present embodiment is provided at the outer lower end of the housing 110, and the guide part 170 is connected to the lower end of the deep-temperature freezing compartment door 130, Sliding can be implemented.

As described above, when the guide part 170 is connected to the lower end of the deep-temperature freezing compartment door 130, the deep-temperature freezing compartment basket 150 cannot be supported by the guide part 170. That is, since the inside of the deep-temperature freezing compartment 100 is maintained at'core-temperature', a thickness for internal insulation of the deep-temperature freezing compartment 100 is formed, and the guide rail 173 is formed on the outer bottom surface of the housing 110. Is formed so that the inner bottom surface 112 of the housing 110 is spaced apart from the guide rail 173 by the outer thickness of the housing 110, so that the deep-temperature freezing compartment basket 150 is separated from the guide part 170 It must be fixed at a certain height away.

Therefore, the deep-temperature freezing compartment basket 150 is supported by the guide part 170 and cannot be fixed, and must be fixed to the deep-temperature freezing compartment door 130 to be fixed at a height spaced apart from the guide part 170 by a certain distance. Therefore, a hook 153 is formed in the deep-temperature freezing compartment basket 150, a groove 1315 is formed on the inner surface of the deep-temperature freezing compartment door 130, and for stable support of the deep-temperature freezing compartment basket 150 The first support member 1521 is protruding from the first surface 152 of the deep-temperature and freezing compartment basket, and the deep-temperature and freezing compartment basket 150 is attracted to the bottom surface 112 of the housing 110 and is worn. , In order to prevent the external force from being applied to foods accommodated in the deep-temperature freezing compartment basket 150 by friction applied to the deep-temperature freezing compartment basket 150, a second support member 1511 protrudes under the grill 151 Can be.

Meanwhile, the guide rail 173 may extend from the front surface of the housing 110 to the rear surface of the housing 110, and the front surface of the housing 110 refers to the outer shell in which the opening 111 of the housing is formed. It may be described as a front surface, and the rear surface of the housing 110 may be described as an outer rear surface of the housing 110 in contact with the grill fan assembly 15.

That is, as the guide rail 173 extends from the lower outer surface of the housing 110 to the rear surface, the withdrawal distance of the guide part 170 can be secured, and the guide part 170 is the deep-temperature freezing compartment. It extends in the longitudinal direction of the housing longer than the longitudinal direction of the basket 150 and may be inserted into the guide rail 173.

The longitudinal direction of the housing 110 refers to the depth forming the inner space of the housing 110, and as the guide rail 173 extends to the outer rear surface of the housing 110, the The inner space may extend deeper than the depth direction formed, and the guide part 170 may be inserted to one end of the guide rail 173 than the depth direction formed by the inner space of the housing 110. It is formed to extend deeper to secure the withdrawal distance of the deep-temperature freezing compartment basket 150.

If, in order to secure the withdrawal distance of the deep-temperature and freezing compartment basket 150, when a rail forming a plurality of steps such as two or three steps is provided, the guide rail due to the characteristics of the deep-temperature and freezing compartment 100 of the present embodiment It is provided in the lower part of the deep-temperature freezing compartment, and the guide part is slid under the deep-temperature freezing compartment, so that the inlet and out of the deep-temperature freezing compartment door are made, so that the durability of the guide rail may be weakened. Since a guide rail for accommodating the rails forming the plurality of stages must be provided at the bottom of the, it occupies a larger volume than the guide rail 173 for accommodating the guide part 170 of the present embodiment, so that the space utilization is increased. It can be degraded.

Therefore, in order to secure the withdrawal distance of the guide unit 170 formed of one stage as in this embodiment, the guide rail 173 is located under the housing 110, but from the outer front surface of the housing 110 It is formed to extend to the outer rear surface of the housing 110 to secure the withdrawal distance of the deep-temperature freezing compartment door 130.

In addition, the guide part 170 is provided with a roller 171 so that the guide part 170 can slide while minimizing friction inside the guide rail 173.

On the other hand, the guide unit 170 includes a locking member 172 for limiting the sliding distance of the core temperature and freezing compartment door 130, the guide rail 173 is a star formed on one side of the guide rail 173 Including the fur 1173, the locking member 172 contacts the starter 1173, so that the sliding distance of the deep-temperature freezing compartment door 130 may be limited.

More specifically, the starter 1731 is formed at a position close to the opening 111 of the housing 110 among the guide rails 173, and the locking member 172 is a roller formed at one end of the guide unit 170 It may be formed in a position close to (171). That is, the starter 1731 may be formed on the guide rail 173 located at the lower front of the outer surface of the housing 110, and the locking member 172 includes the guide part 170 and the deep-temperature freezing compartment basket ( 150) may be formed in a portion extending more than the length direction.

When the deep temperature and freezing compartment basket 150 is removed from the deep temperature and freezing compartment door 130 and taken out to the outside, the deep temperature and freezing compartment door 130 is the depth of the deep temperature and freezing compartment basket 150 in the housing 110 In order to secure a distance corresponding to the direction (direction from the core temperature freezer door to the inner space of the housing), the locking member 172 contacts the stopper 1731, so that the sliding distance of the core temperature freezer door 130 May be limited. If the sliding distance of the deep-temperature freezing compartment door 130 is not limited, there is a risk that the deep-temperature freezing compartment door 130 is separated from the housing 110 and falls. In addition, the deep-temperature and freezing compartment basket 150 may form a space for containing food by itself, and a separate shelf 155 may be provided to divide the storage space within the deep-temperature and freezing compartment basket 150. have.

On the other hand, when the locking member 172 and the stopper 1731 contact with each other and the deep-temperature freezing compartment door 130 is pulled out to the maximum, a rotation moment according to the withdrawal distance of the deep-temperature freezing compartment door 130 is generated. Thus, there is a risk that the deep-temperature freezing compartment door 130 is separated from the housing 110 and falls. Therefore, the guide rail 173 further includes a rib 1733 protruding from one side of the guide rail 173, the rib 1733 when the core temperature freezer door 120 rotates in the direction of gravity, the It is possible to prevent removal of the deep-temperature freezing compartment door 120 by contacting the guide part 170.

In detail, the rib 1733 may be formed inside the guide rail 173 than the starter 1731, and when the deep-temperature freezer door 120 receives a moment and rotates, the guide part 170 You can touch the top. In this case, a roller 171 may be provided under the guide part 170, and the upper part of the guide part 170 may be provided to extend shorter than the lower part of the guide part 170. That is, the guide part 170 may be provided in the shape of a rod that extends apart from the upper and lower portions by a predetermined distance, and a locking member 172 is formed on the upper part of the guide part 170 to By contacting the starter 1731 positioned between the upper and lower portions, the withdrawal distance of the deep-temperature freezing compartment door 120 may be limited, and the lower portion of the guide portion 170 is greater than the upper portion of the guide portion 170. It is further extended in the length (depth) direction of the housing 110 from the core temperature freezer door 120, and a roller 171 may be provided at the extended end.

On the other hand, as described above, the housing 110 has an opening 111 formed in the front surface, and the inner space of the housing 110 includes a bottom surface 112 facing the bottom surface of the deep-temperature freezing compartment basket 150 and the deep-temperature freezing compartment. By connecting the upper surface 114 and the upper surface 114, the lower surface, and the bottom surface 112 which form the rear surface facing the grill 151 of the compartment basket 150 and the surface facing the floor surface 112 A side surface that divides the inner space into a cube shape may be provided. In addition, the deep-temperature freezing compartment basket 150 is positioned to be spaced a predetermined height from the bottom surface 112, and a step 1141 is formed on the upper surface 114 of the housing 110.

A flow path through which cold air moves is formed through a gap (a predetermined height) between the deep-temperature freezing compartment basket 150 and the bottom surface 112 and a step 1141 between the upper surface 114 of the housing 110 and the cold air The fan 17 located at the rear of the housing 110 flows into the deep-temperature freezing compartment 100, and the introduced cold air moves through the flow path.

In detail, a predetermined accommodation space is formed at the rear of the deep-temperature freezing compartment 100 so that the thermoelectric element module 200 and the fan 17 are stacked toward the inner space of the deep-temperature freezing compartment 100 so that the deep-temperature freezing compartment (100) The cold air that can maintain the'deep temperature' flows inside. A part of the cold air may be introduced (f1) into the deep-temperature freezing compartment basket 150 through the grill 151 of the deep-temperature freezing compartment basket 150, and the introduced cold air may be introduced into the deep-temperature freezing compartment basket 150 through the flow path. ) Of the upper (f2) and the lower (f3) can be moved. A hole may also be formed on the first surface 152 of the deep-temperature freezing compartment basket 150 for smooth flow of the cold air.

When the flow path of the cold air is described in more detail, a flow f1 of cold air introduced from the rear surface of the deep-temperature freezing compartment 100 from the fan 17 is formed, and part of the flow f1 is the deep-temperature freezing compartment basket It is introduced into the deep-temperature freezing compartment basket 150 through the rear grill 153 of 150. On the other hand, the cold air introduced into the deep-temperature freezing compartment 100 may be divided into the upper surface 114 and the bottom surface 112 of the deep-temperature freezing compartment 100 to move, and flow (f2) moving through the upper surface 114 Is moved through the step 1141 formed on the upper surface, and the flow f3 moving the bottom surface 112 is through the gap between the deep-temperature freezing compartment basket 150 and the bottom surface 112 Move. Meanwhile, the flow f2 passes through an upper passage 18a formed above the fan 17 of the grill fan assembly 15, and the flow f3 flows into a lower portion formed under the fan 17. Pass through (18b).

The upper surface 114 of the housing may have a stepped at a position close to the opening 111 of the housing and may extend to the rear surface of the housing. In this case, an inclined portion 1143 may be formed at a position close to the rear surface of the housing for smoother flow. If the inclined portion 1143 is not formed, the flow f2 does not flow smoothly into the upper passage 18a, and a part forms a vortex, thereby inhibiting the smooth flow of the flow passage. . The inclined portion 1143 may form a smooth flow of flow by eliminating a height difference between the step 1141 and the upper passage 18a formed on the upper surface 114 of the deep-temperature freezing compartment. Since there is no height difference between the bottom surface 112 and the lower passage 18b of the deep-temperature freezing compartment, the bottom surface 112 need not be provided with a configuration corresponding to the inclined portion 1143 of the upper surface. .

However, it is not necessary that the inclined portion 1143 is formed on a part of the upper surface 114, and the step 1141 is formed to be inclined toward the rear surface of the housing, thereby achieving the above-described object.

In addition, a guide portion 1145 for guiding the flow of cold air flowing through the upper surface 114 of the housing to the rear surface of the housing 110 may be formed at a portion adjacent to the rear surface of the housing among the steps 1141. The guide part 1145 may be formed at a position of the upper surface 114 close to the upper passage 18a to perform a horizontal guide of the flow f2 to the upper passage 18a.

The horizontal guide means guiding the flow (f2) to the center line axis of the step 1141 based on the center line in the longitudinal direction of the step 1141, and the step difference by the guide part 1145 The width of one end of the 1141 and the width of the other end where the guide part 1145 is formed may be formed to be different from each other.

That is, the step 1141 may be provided in a'U' shape on the upper surface 114, and the flow (f2) on the side opened in the'U' shape toward the centerline axis of the'U' shape A guide portion 1145 is formed to guide the flow so that the flow f2 can more smoothly flow into the upper passage 18a.

Meanwhile, the inclined portion 1143 may be formed in a portion overlapping with the region where the guide portion 1145 is formed, and in detail, when the step 1141 is provided in a'U' shape, a'U' shape It may be formed together with the guide part 1145 on the opened side.

When the flow f2 flows into the upper passage 18a through the inclined portion 1143 and the guide portion 1145 as described above, generation of a flow that may act as a resistance may be suppressed.

The present invention is not limited to the above-described embodiments, and as can be seen from the appended claims, modifications can be made by those of ordinary skill in the field to which the present invention belongs, and such modifications are within the scope of the present invention. .

1: refrigerator 2: body 3: outer case
4: inner case 5: refrigerator compartment door 6: freezer compartment door
7: shelf 8: hinge 9: door basket
10: freezer 11: drawer 12: dividing wall
13: installation guide 14: rail 15: grill pan assembly
15a: grill pan 15b: shroud 16: guide rail
17: fan 18a: upper side 18b: lower side
20: refrigerator compartment 30: cooling device 31: compressor
33: condenser 35: expansion device 37a: freezer side evaporator
37b: refrigerating chamber side evaporator 40: freezing evaporation chamber 41: groove
100: shim-on freezing compartment 110: housing 110h: hole
111: opening 112: bottom surface 113: protruding member
114: upper surface 115: fitting groove 130: deep-temperature freezing compartment door
150: shim-on freezer basket 151: grill 152: first side
153: hook 153h: freezer fan mounting hole
155: shelf 161: fixing member 170: guide part
171: roller 172: locking member 173: guide rail
174: cover member 181a: guide part 200: thermoelectric element module
210: cold sink 211: heat exchange fin 212: defrosting device
213: fastening member 220: insulation 230: thermoelectric element
230a: heat absorbing surface 230b: heating surface 240: heat sink
241: inlet pipe 243: outlet pipe 250: module housing
251: receiving part 253: fastening boss 255: pipe through hole
257: fixing part 1113: coupling groove 1115: magnet
1117: heating wire 1141: step 1143: inclined portion
1145: guide part 1311: gasket 1313: hook
1315: groove 1511: second support member 1513: contact member
1521: first support member 1731: stopper 1733: rib
2571: support member 2573: insert member
L: Conductor h1: First width h2: Second width
h3: 3rd width h4: 4th width

Claims (5)

A freezer compartment with an open front;
A deep-temperature freezing compartment partitioned from the freezing compartment in the freezing compartment, and including a housing having an opening formed at a front surface thereof and a deep-temperature freezing compartment door slidably provided in the housing to open and close the opening;
A thermoelectric element including a heat absorbing surface facing the deep temperature freezing compartment and a heat generating surface defined as a surface opposite to the heat absorbing surface, and a cold sink positioned in contact with the heat absorbing surface, and a direction facing the cold sink by contacting the heating surface A thermoelectric device module including a heat sink located at the rear of the deep-temperature freezing compartment;
A door rotatably coupled to the freezing chamber to open and close the freezing chamber, and having a basket therein; And
Including; a deep-temperature freezing compartment provided in the interior of the deep-temperature freezing compartment, the deep-temperature freezer compartment door opening and closing the opening and allowing the insertion and extraction from the housing;
The refrigerator, characterized in that the width of the deep freezer compartment door is smaller than the width of the housing.
The method of claim 1,
The refrigerator, characterized in that the width of the deep-temperature freezing compartment door is larger than the width of the deep-temperature freezing compartment basket.
The method of claim 1,
A refrigerator, characterized in that the width of the deep-temperature freezing compartment door matches the width of the deep-temperature freezing compartment basket.
The method according to any one of claims 1 to 3,
And a protruding member provided on both sides of the deep-temperature freezing compartment door and protruding from the front of the opening.
The method of claim 4,
A refrigerator, characterized in that the sum of the width of the protruding member and the width of the deep-temperature freezing compartment door coincides with the width of the housing.

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