KR101586859B1 - a freezer for maintaining the supercooled - Google Patents

Abstract

The present invention relates to a freezer capable of cooling a cooling target object to be in a supercooled state. According to an embodiment of the present invention, the freezer for maintaining a supercooled state comprises: a cooling main body; a cooling space part; a circulation fan; a supply duct; and a cooling plate. The cooling main body has a door installed thereon to allow the cooling target object to be introduced into or be discharged from the inner reception space of the freezer. The cooling space part includes an evaporator positioned on the upper part of the reception space to cool air in the reception space. The circulation fan is installed on the cooling space part to circulate the cool air. The supply duct guides the cool air generated in the evaporator from a cooling generation part to a lower part of the reception space. The cooling plate has a plurality of cool air circulating paths installed in the reception space in such a manner that the cool air circulating paths are extended in the direction of the door and are spaced in a vertical direction and connected to the supply duct not to allow the cool air supplied from the supply duct to be discharged to the cooling target object in the reception space. Also, the cooling plate performs heat exchange with the air in the reception space to cool the air in the reception space and cools the cooling target object by the air cooled through the heat exchange. Accordingly, the cooling target object is indirectly cooled to improve cooling efficiency, and all cooling target objects can be uniformly cooled regardless of their position in the reception space, thereby increasing cooling efficiency and reducing consumption of energy.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a freezer for maintaining a supercooled state,

The present invention relates to a freezer capable of cooling the object to be cooled in a supercooled state.

The supercooling phenomenon is a phenomenon in which the molten matter or solid does not change even when cooled to the phase transition temperature or lower in the equilibrium state.

In the supercooled state, since the member is in an unstable state, if it is shocked, it freezes in the form of a slush. By using such a supercooled state, a slush drink can be provided to the consumer.

On the other hand, in order to provide a supercooled beverage, a "cooling tower" of Korean Registered Patent No. 10-1205822 (registered on November 22, 2012) has been disclosed.

The conventional cooling hood includes a cooling chamber 2 for accommodating a liquid beverage container P, a heat exchanger 9 for cooling the air in the cooling chamber 2, and a cooling duct A cooling air outlet 12 provided at a position different from the inlet 10 of the cooling duct 5 and a cooling air outlet 12 provided in a part of the cooling duct 5, A cool air supply duct 6 for circulating the air, an introduction port 15 provided at one end of the cool air supply duct 6, and an air supply duct 15 for blowing air in the cool air supply duct 6 into the cooling chamber 2 And a fan 16 mounted so as to face the vent hole 20 and the introduction port 15 of the cold air supply duct 6. The cooling duct 5 is disposed inside the cooling chamber 2 Air is sucked from the suction port 10 and cooled by the heat exchanger 9 and then blown into the cool air discharge port 12 and the cool air supply duct 6 is cooled by the cooling chamber 2 ) Of And the inlet port 15 faces the cooling air discharge port 12 of the cooling duct 5 and faces the inside of the cooling chamber 2. The fan 16 is connected to the inlet port 15 by the fan 16, (15) into the cold air supply duct (6).

The conventional coolant of such a configuration can provide a supercooled beverage in such a manner as to delay the time for cooling the beverage by mixing the air and the cool air in the cooling chamber 2 and supplying the cooled mixture to the cooling chamber 2. [

However, since the conventional coolant is blown into the cooling chamber 2 containing the beverage through the coolant supply duct 6, the coolant is supplied to the coolant supply duct 6 near the coolant supply duct 6, The beverage which is not supercooled and freezes and the beverage located on the far side of the cold air supply duct 6, that is, the outside of the cooling chamber 2, is not supercooled due to insufficient cold air to be transferred, Only the beverage in the cooling chamber 2 is overcooled depending on its position in the cooling chamber 2.

Further, since the beverage is cooled by spraying cool air directly to the beverage, when the beverage is filled in the cooling chamber, there is a problem that resistance to circulation of cool air is generated and cooling efficiency is lowered.

In addition, when the door is opened, the outside air is introduced into the cooling chamber 2 to lower the efficiency of cooling the beverage, and it takes a long time to cool the beverage.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to indirectly cool the object to be cooled by cold air, thereby minimizing the resistance of the cold air circulation, So that the object to be cooled located in the cooling chamber can be uniformly cooled regardless of the position in the cooling chamber and the cooling efficiency and cooling time can be shortened by keeping the object to be cooled when the door is opened So that the supercooled state can be maintained.

It is another object of the present invention to provide a freezer capable of automatically controlling a supply amount of cold air in accordance with an amount of an object to be cooled and a temperature to be accommodated in the cooling chamber, thereby maintaining a supercooled state in which cooling of the object to be cooled can be uniformly and stably cooled.

According to an aspect of the present invention, there is provided a freezer for maintaining a supercooled state according to an embodiment of the present invention includes a freezing body provided with a door for loading or unloading the object to be cooled into an accommodation space inside, A circulation fan installed in the cooling space to circulate cool air, a cooling fan for guiding cooling air generated from the evaporator to the lower portion of the accommodating space, And a cool air circulation conduit extending in a direction in which the door is positioned and spaced vertically apart from the accommodation space and communicating with the supply duct so that cool air supplied from the supply duct is not blown into the object to be cooled in the accommodation space, And the air in the accommodation space is cooled in the form of heat exchange with the air in the accommodation space And a cooling plate for cooling the object to be cooled with the air cooled by the heat exchange.

Wherein the cooling plate includes a cool air discharge hole protruding in a direction in which the door is positioned in a cool air circulation path communicating with the supply duct, And the cold air discharge hole is formed to be larger than the size of the radiating heat transfer hole so that the pressure of the cold air passing through the air flow path during operation of the circulation fan is equal to or lower than the lower pressure of the radiating heat transfer hole, And may be discharged only to the cold air discharge hole and not to the radiating heat transfer hole.

When the circulation fan stops, the pressure of the cool air supplied to the cooling plate is released, and the cool air remaining in the cooling plate is discharged to the cool air discharge hole to insulate the object to be cooled.

The amount of the cool air supplied to the supply duct is changed to the amount of cool air supplied to the supply duct by discharging a part of the cool air to be supplied to the supply duct, Wherein the amount of cold air discharged into the cold air amount adjusting space is automatically adjusted by changing the pressure of the cooled air accommodated in the accommodating space according to the temperature, The amount of cold air to be supplied to the heat exchanger can be adjusted.

And a shelf for supporting the object to be cooled so as to be spaced apart from the cooling plate so that the object to be cooled does not contact the cooling plate and is cooled only by radiant heat.

And a cool air control plate for controlling the amount of cool air supplied from the supply duct to the cooling plate.

At least one or more of the plurality of cooling plates may have different lengths protruding in a direction in which the door is located.

According to the present invention, by indirectly cooling the object to be cooled in such a manner that the cool air cools the cooling plate to cool the air in the accommodation space, the resistance due to the circulation of cool air can be minimized to improve the cooling efficiency and energy, However, all the objects to be cooled can be uniformly subcooled regardless of the position of the accommodation space.

Further, the cold air amount adjusting space is provided to automatically adjust the supply amount of cool air according to the amount of the object to be cooled and the temperature of the object to be accommodated in the accommodating space, thereby uniformly and stably bringing the object to be cooled to a supercooling degree.

Further, since the cold air covers and warms the object to be cooled when the door is opened, the cooling efficiency can be improved and the time required for cooling can be shortened.

Also, since the cold air amount adjusting space is located at the upper portion and the cold air discharged from the cold air amount adjusting space is directly supplied to the cooling space portion, the energy efficiency can be improved.

In addition, by discharging a part of the cool air supplied to the supply duct to the cold air amount adjusting space, it is possible to minimize noise generated by supplying all cool air to the supply duct.

1 is a side sectional view showing a conventional freezer.
2 is a side cross-sectional view illustrating a freezer for maintaining a supercooled state according to an embodiment of the present invention.
3 is a front view showing a freezer for maintaining a supercooled state according to an embodiment of the present invention.
4 is an exploded perspective view illustrating a cooling plate of a freezer for maintaining a supercooled state according to an embodiment of the present invention.
FIG. 5 is a front view showing a freezer for maintaining a supercooled state according to an embodiment of the present invention, and is a view showing the flow of cool air.
6 is a view showing a cold air amount adjusting space of a freezer for maintaining a supercooled state according to an embodiment of the present invention.
7 is a view showing a flow of cool air when a door is opened in a freezer for maintaining a supercooled state according to an embodiment of the present invention.

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

The freezer 100 that maintains the supercooled state according to the embodiment of the present invention is a freezer that can keep the object 200 in an uncooled state by forming a supercooling condition such that the object 200 to be cooled is supercooled, (100).

Here, the supercooling phenomenon is a phenomenon in which the phase does not change even when the liquid is cooled to the phase change temperature or lower in the equilibrium state. Since the constituent is unstable in the supercooled state, when the supercooled liquid is impacted, Can be manufactured.

And, the object to be cooled may be a beverage containing carbonic acid or a beverage containing alcohol, or

On the other hand, the method of satisfying the supercooling condition is a method of rapidly cooling the temperature of the object 200 to be cooled to a temperature not higher than the phase change temperature or a method of slowly cooling the object 200 to be cooled to a phase change temperature Lt; 0 > C.

The freezer 100 that maintains the supercooled state according to the embodiment is configured to satisfy the supercooling condition by slowly cooling the cooled object 200 to the phase change temperature or lower.

2 and 3, the freezer 100, which maintains the supercooled state according to the embodiment of the present invention, may include a freezing body 110.

The freezing body 110 is formed in a box shape and includes a receiving space 111 for receiving the object 200 to be cooled and a door 113 for opening and closing the receiving space 111.

A heat insulating material (not shown) for inserting the receiving space 111 may be provided around the inner surface of the wall surface of the freezing body 110.

In addition, the door 113 may be formed of glass so that the object to be cooled 200 contained in the accommodation space 111 can be seen, and the glass can be realized by a vacuum glass having high heat insulation property.

2, 3 and 6, the freezer 100, which maintains the supercooling state according to the embodiment of the present invention, may include a cooling space 120.

The cooling space 120 can cool air in the accommodation space 111 to generate cool air.

The cooling space 120 may be positioned above the accommodation space 111 and may be formed by partially partitioning the upper portion of the accommodation space 111 by the diaphragm 123, 120 may be inclined downward in the direction in which the door 113 is positioned.

An air inlet 121 through which the air in the receiving space 111 flows into the cooling space 120 may be formed on a front surface of the cooling space 120 formed to be inclined downward.

In addition, the cooling space 120 may include an evaporator 130. The evaporator 130 may be located inside the cooling space 120 and may exchange heat with the air in the accommodation space 111 to cool the air in the accommodation space 111 to generate cool air.

Meanwhile, the evaporator 130 can be cooled by the refrigerant as it passes through the refrigerant.

The freezer 100 for maintaining the supercooled state further includes a compressor 135 and an evaporator 130 and an expansion valve so that the compressor 135 compresses the refrigerant and the refrigerant compressed in the compressor 135 is condensed by the condenser 135. [ The evaporator 130 is expanded and liquefied through the expansion valve 133 so that the refrigerant is expanded and taken to the evaporator 130. In the evaporator 130, Can be cooled to generate cold air.

The refrigerant vaporized in the evaporator 130 is supplied to the compressor 135 again to continuously cool the refrigerant.

At this time, only the evaporator 130 is installed in the cooling space 120 to generate cool air, and the remaining components may be installed at different parts such as the upper part, the lower part, or the rear part of the freezing body 110.

The cooling space unit 120 may include a controller to set the temperature of the accommodation space 111 according to the adjustment of the controller.

In addition, the cooling space 120 may include a heater including a heater for defrosting the frozen steam. Since the heater is a well-known technology, a detailed description thereof will be omitted.

2 and 3, the freezer 100, which maintains the supercooled state according to the embodiment of the present invention, may include a circulation fan 125.

The circulating fan 125 may forcibly circulate the air in the receiving space 111 and may provide the air in the receiving space 111 to the evaporator 130.

The circulation fan 125 may be installed in the air inlet for sucking air in the accommodation space 111 in the cooling space 120.

The circulating fan 125 sucks the air in the receiving space 111 into the cooling space 120 and provides the air to the evaporator 130. The cool air generated through the evaporator 130 flows through the supply duct And the air passing through the supply duct 140 is discharged to the front of the accommodation space 111 through the cooling plate 150 and is sucked into the cooling space 120 again. Air can be circulated.

 The circulation fan 125 is installed at the air inlet so that the air discharged from the circulation fan 125 passes through the evaporator 130. The circulation fan 125 is installed at the rear side of the evaporator 130, (130) by a suction force in a direction in which the evaporator (130) is located.

Here, the circulation fans 125 may be installed in parallel, and the circulation fan 125 is a well-known configuration, so a detailed description thereof will be omitted. If the circulation fan 125 is configured to circulate the air, This is possible.

The circulating fan 125 is configured to operate only when the door 113 is closed so as to seal the accommodation space 111 and to stop when the door 113 is opened so as to minimize leakage of cold air due to circulation of the cool air .

2 and 3, the freezer 100, which maintains the supercooled state according to the embodiment of the present invention, may include a supply duct 140.

The supply duct 140 is connected to the cooling space 120 to move the cool air generated by the evaporator 130 to a lower portion of the accommodation space 111.

On the other hand, the supply duct 140 may be disposed on the rear surface facing the door 113 in the accommodation space 111. [

Here, the supply duct 140 does not form a hole for discharging cool air into the accommodation space 111. That is, when a hole for blowing cold air is formed in the supply duct 140, the cool air directly comes into contact with the object 200 to be cooled and thereby the object 200 to be cooled is not supercooled, .

Further, the supply duct 140 may include a cool air guide member 143.

The cool air guide member 143 can guide the cool air so that the cool air that is rotated in one direction by the circulation fan 125 and is discharged to the supply duct 140 is scattered and guided in the opposite direction (refer to FIG. 3).

The cool air guide member 143 may be installed inside the supply duct 140 and the cool air guide member 143 may be installed at a plurality of lengths in the vertical direction of the supply duct 140, Is formed in a curved or curved shape in a direction opposite to the direction in which the cool air is rotated so that the cool air is uniformly dispersed in the entirety of the supply duct 140 in the direction opposite to the direction of rotation of the cool air discharged from the circulating fan 125 .

At this time, the cool air guide member 143 may be installed to adjust the angle of the cool air guide member 143 according to the intensity of the cool air.

2 to 4, the freezer 100, which maintains the supercooled state according to the embodiment of the present invention, may include a cooling plate 150.

The cooling plate 150 is cooled by cold air and can cool the air in the accommodation space 111 in the form of heat exchange with the air in the accommodation space 111.

The cooling plate 150 may be cooled by the cool air supplied from the supply duct 140 through the supply duct 140 and the cooling plate 150 may be cooled by the supply duct 140 And the cooling plate 150 may be disposed so that a plurality of the cooling plates 150 are spaced apart from each other in the upper and lower portions of the accommodation space 111. [

The cooling plate 150 may be formed in the form of a duct so as to communicate with the supply duct 140 and to be cooled by cool air supplied through the supply duct 140. In addition, And can also be formed as a plate.

The cooling plate 150 may be provided with a cool air discharge hole 151 at the end of the cooling plate 150 so that the cool air can be discharged to the front where the door 113 is located.

The cool air introduced into the cooling plate 150 is discharged through the cool air discharge hole 151 of the cooling plate 150 and is not introduced into the accommodation space 111, So that the refrigerant can be sucked into the cooling space 120.

A radiating heat transfer hole 153 formed through the cooling plate 150 to cool the object 200 to be cooled, which is positioned below the cooling plate 150, may be formed on the bottom surface of the cooling plate 150 .

A plurality of radiating heat transfer holes 153 may be formed and the radiating heat transfer holes 153 may have a size smaller than that of the cool air discharging holes 151. Conversely, ) Larger than the size of the substrate.

When the radiating heat transfer hole 153 is formed to be larger than the size of the cold air discharging hole 151, since the cold air passing through the cooling plate 150 is discharged to the radiating heat transfer hole 153, ) Can not reach the supercooling, and it may freeze immediately.

In order to discharge the cold air through the radiating heat transfer hole 153 having a smaller size than the cold air discharge hole 151, the cold air must pass through the cooling plate 150 at a high pressure. As the cooling plate 150, The cold air can not be discharged to the radiating heat transfer hole 153 but can be discharged only to the cold air discharging hole 151. [

At this time, the size of the radiating heat transfer hole 153 may be designed so as not to discharge the cold air by adjusting the design according to the pressure of the cold air passing through the cooling plate 150, or to control the amount of cold air supplied to the cooling plate 150 .

On the other hand, the cold air passing through the cooling plate 150 is blown by the forced pressure of the circulation fan 125. When the door 113 is opened and the circulation fan 125 stops, That is, the blowing of the circulating fan 125 is stopped and the flow velocity is not generated.

7, the cold air can not be discharged to the cold air discharge hole 151 formed at the end of the cooling plate 150, and is positioned below the cooling plate 150 through the radiating heat transfer hole 153 The cooled air is discharged to the object 200 to be cooled. The cooled air covers the object 200 to be cooled and prevents the warm air flowing from the outside from directly contacting the object 200 to be cooled, thereby performing the function of the air curtain The object 200 to be cooled can be kept warm.

The cooling plate 150 located at the uppermost end of the accommodating space 111 among the plurality of cooling plates 150 can be excessively cooled due to the cold air amount adjusting space 160 through which cool air is discharged, A radiating heat transfer hole 153 for transmitting radiant heat to the object 200 to be cooled may not be formed in the lower part.

The plurality of cooling plates 150 may be formed such that the length of the plurality of cooling plates 150 protruding in the direction in which the door 113 is positioned is shortened from the upper portion to the lower portion or the length is decreased from the lower portion to the upper portion, 150 may be formed to be long or short.

The temperature of the accommodation space 111 may vary depending on the degree of filling and the temperature of the object 200 to be cooled or the nature of the cold air. The temperature of the accommodation space 111 can be uniformly adjusted.

Since the cooling space 120 for generating the cool air is located in the upper part of the accommodation space 111 and the lower part of the accommodation space 111 has a lower temperature than the lower part of the accommodation space 111, The length of the cooling plate 150 located at the lower portion of the accommodation space 111 is longer than the length of the cooling plate 150 positioned at the upper portion of the door 113. [

The cooling plate 150 configured as described above is cooled by the cool air supplied from the supply duct 140 and a plurality of the cooling plates 150 are spaced apart from each other above and below the cooling space to entirely cool the air in the accommodation space 111, 111 are configured to cool the object 200 to be cooled so that the cool air does not directly cool the object 200 to be cooled but indirectly cools the object 200 to be cooled The water 200 can be maintained in a supercooled state.

In addition, since the object to be cooled 200 is indirectly cooled, not only the front where the door 113 is located and the rear where the supply duct 140 is located can be uniformly cooled in the accommodation space 111, It is prevented that the cooling water 200 hits against the movement of the air, so that the cooling air can be circulated quickly and the cooling efficiency can be improved.

As shown in FIGS. 2 and 3, the freezer 100 for maintaining the supercooled state according to the embodiment of the present invention may include a cold air amount adjusting space 160.

The cold air amount regulating space 160 regulates the amount of cool air supplied to the object to be cooled 200 in the accommodation space 111 through the supply duct 140 as a whole to prevent the object 200 to be cooled rapidly Whereby the object 200 to be cooled can be brought into an unfreezed supercooled state.

Here, in order to supercool the object 200 to be cooled, it is necessary to cool it more slowly than the normal cooling rate. To increase the cooling rate, if it is assumed that the amount of supercooling supply and cooling necessary for the entire space is constant, It is necessary to reduce the inlet / outlet temperature difference so that it can be made into a supercooled state (supercooling supply amount of heat of refrigerant, amount of heat of refrigerating heat × difference of inlet / outlet temperature × supply time).

The cooling air amount adjusting space 160 may be located between the cooling plate 150 and the cooling space 120 located at the uppermost end of the accommodation space 111 and may be formed by passing through a part of the supply duct 140 The cooling rate can be delayed to reduce the amount of cool air supplied to the supply duct 140 in such a manner as to discharge a part of the cool air supplied to the supply duct 140 from the cooling space 120, thereby being supercooled.

Here, the cold air amount adjusting space 160 is configured such that the pressure for supplying the cool air to the supply duct 140 by the circulation fan 125 is greater than the pressure generated by the flow rate of the cool air passing through the supply duct 140 Therefore, the cold air can be discharged from the supply duct 140 to the cold air amount regulating space 160.

At this time, depending on the load condition of the object 200 to be cooled, the cold air amount regulating space 160 may be in a neutral state substantially free from cold air flow.

The cooling air discharged into the cooling air amount adjusting space 160 does not cool the accommodating space 111, that is, does not perform heat exchange, and immediately flows into the cooling space 120 by the circulating fan 125 So that the cooling efficiency can be improved.

The cooling air amount adjusting space 160 may be formed in the case where the load 200 is further stored in the accommodating space 111 or the door 113 of the accommodating space 111 The temperature difference between the accommodation space 111 and the supply duct 140 is largely changed. As a result, the internal flow velocity of the cooling space 120 is increased by the natural convection, (Bernoulli's theorem), the amount of cold air discharged through the cold air amount regulating space 160 may be reduced.

Therefore, the amount of cool air discharged into the accommodation space 111 through the cooling plate 150 becomes relatively large, and the supply amount of cool air can be automatically adjusted in proportion to the size of the load.

On the other hand, when the load of the accommodation space 111 is reduced, the temperature difference between the inlet and outlet of the cooling air in the cooling space 120 is reduced, the flow rate in the supply duct 140 is slowed, The amount of cool air discharged to the cooler 160 is relatively increased, and the amount of cool air supplied to the object 200 to be cooled is reduced, so that the object 200 to be cooled can be gradually supercooled.

That is, the amount of cool air discharged from the cool air amount adjusting space 160 is automatically adjusted according to the amount of load, so that the time for cooling the object to be cooled 200 is controlled uniformly regardless of the load amount, Can be supercooled.

Since the cold air discharged into the cold air amount adjusting space 160 is located directly below the cooling space 120, the cooling air is circulated through the cooling space portion 120 so that the heat exchange temperature of the evaporator 130 is minimized and the cooling efficiency of the evaporator 130 can be improved.

The cooling air amount adjusting space 160 is formed to open a part of the supply duct 140 so that the pressure of the cool air leaks into the cool air amount adjusting space 160 and is supplied to the supply duct 140, It is possible to prevent the occurrence of noise due to pressure.

As shown in FIGS. 5 and 6, the freezer 100 for maintaining the supercooled state according to the embodiment of the present invention may include a cool air control plate 170.

The cool air control plate 170 can control the amount of cool air supplied to each cooling plate 150 from the supply duct 140 and the amount of cool air discharged from the supply duct 140 to the cool air amount control space 160 .

The cool air control plate 170 may be installed at a portion where the supply duct 140 communicates with the cooling plate 150 and a portion where the coolant amount control space 160 and the supply duct 140 communicate with each other. The cooling air moving downward from the upper portion of the supply duct 140 is directed toward the lower portion of the supply duct 140 so that the cool air is allowed to flow into the cooling plate 150 and the cold air amount adjusting space 160, Can be positioned downward.

The cooling plate 170 may be configured to be rotatable up and down so as to adjust the amount of cool air flowing into the cooling plate 150 and the cold air amount adjusting space 160 .

2 to 3, the freezer 100 that maintains the supercooled state according to the embodiment of the present invention may include a shelf 180.

The shelf 180 can support the object 200 to be cooled in the accommodation space 111 so as to place the object 200 to be cooled in the accommodation space 111.

The shelf 180 can support the object 200 to be cooled in the cooling plate 150 so that the object 200 to be cooled is not in direct contact with the cooling plate 150, May be disposed between the cooling plate 150 such that the object 200 to be cooled is positioned between the plurality of cooling plates 150 arranged up and down in the accommodation space 111. [

At this time, the shelf 180 is installed in the lower part of the cooling plate 150 located above and below the cooling object 200 so that the object 200 to be cooled can be cooled by the radiant heat from the lower part of the cooling plate 150, The cooling plate 150 can be installed at a position close to the cooling plate 150. [

The shelf 180 may be formed in a lattice shape so that the air in the accommodation space 111 can freely flow into the object 200 to be cooled.

2, the freezer 100, which maintains the supercooled state according to an embodiment of the present invention, may include an illumination 115.

The illumination light 115 illuminates the accommodation space 111 to illuminate the dark accommodation space 111.

The illumination 115 may be implemented by an LED module having a plurality of LEDs, or may be installed on the circumference of the accommodation space 111 or on the door 113.

Then, the illumination 115 can be operated to be turned on or off according to the opening and closing of the door 113.

Hereinafter, the actions and effects between the above-described respective components will be described.

The freezer 100 that maintains the supercooled state according to the embodiment of the present invention opens the door 113 to house the object to be cooled 200 in the shelf 180 installed in the accommodation space 111, Lt; / RTI >

When the door 113 is closed, the freezer 100 performs cooling in such a manner that the circulation fan 125 operates to circulate air in the accommodation space 111.

5, the air in the accommodation space 111 flows into the cooling space 120 through the air inlet 121, and the introduced air flows into the evaporator 130 through the air inlet 121. At this time, Exchanges heat with the evaporator 130 while passing through the heat exchanger 130 and is discharged to the supply duct 140.

The cooling air discharged to the supply duct 140 passes through the cooling plate 150 to cool the cooling plate 150 so that the cooling plate 150 performs heat exchange with the accommodation space 111. The heat exchanged cool air flows through the door 113 Is discharged from the cooling plate 150 to the front of the accommodation space 111 where the circulation fan 125 is located and flows into the cooling space 120 again by the circulation fan 125. [

In this cool air circulation path, since the cool air is not directly supplied to the object 200 to be cooled but indirectly cooled the object 200 to be cooled, the object 200 to be cooled is brought into a supercooled state and the object 200 to be cooled It can be maintained in a supercooled state.

6, the cool air, which is partially discharged into the cold air amount adjusting space 160 in the cool air circulation path, is cooled again by the circulating fan 125 without passing through the path for cooling the object 200 to be cooled The cool air discharged into the cold air amount regulating space 160 is supplied to the supply duct 140 according to the change in the pressure depending on the load of the object 200 to be cooled in the accommodation space 111 The amount is automatically adjusted.

For example, as the amount of the object 200 to be filled in the receiving space 111 is large and the temperature is high, the pressure of the receiving space 111 is increased, and a relatively small amount of cold air is discharged into the cold air amount controlling space 160 The amount of cool air can be automatically adjusted in such a manner that cool air supplied to the supply duct 140, that is, cool air for cooling the accommodation space 111 is supplied more.

Since the cold air amount adjusting space 160 is adjusted in accordance with the amount of the object 200 to be cooled and the temperature of the object 200 to be accommodated in the receiving space 111, So that all the objects 200 to be cooled can be made uniformly in a supercooled state and maintained at the same time.

The cooling plate 150 is cooled by the cooling air, and the cooling plate 150 is not cooled by spraying the cooling air directly onto the object 200 to be cooled on the cooling air circulation path, The object to be cooled 200 can be indirectly cooled in such a manner that the air in the cooling space 111 is cooled again by cooling the air in the cooling space 111.

That is, the cooling plate 150 does not directly cool the object to be cooled 200 by spraying cold air but indirectly cools the object to be cooled 200 by delaying the cooling time of the object 200 to be cooled, .

The shelf 180 supports the object 200 to be cooled so as to be spaced apart from the cooling plate 150 in order to prevent direct contact of the object 200 with the cooling plate 150, (200) can be indirectly cooled.

A radiating heat transfer hole 153 is formed in the lower part of the cooling plate 150 so that cool heat is not discharged to the radiating heat transfer hole 153 but is transmitted to the object 200 to be cooled, And the object to be cooled 200 is cooled by the radiant heat.

At this time, the cool air passing through the cooling plate 150 escapes to the radiating heat transfer hole 153 by the speed at which the cool air is discharged by the circulation fan 125 and the size of the cool air discharge hole 151 formed in the cooling plate 150 The cool heat is not discharged to the radiating heat transfer hole 153. [

7, when the door 113 is opened, the operation of the circulating fan 125 is stopped to minimize the loss of cool air, and when the operation of the circulating fan 125 is stopped, The remaining cold air of the cooling plate 150 is discharged to the lower portion through the radiating heat transfer hole 153 to cover the object 200 to be cooled, , The object to be cooled 200 can be kept warm.

Therefore, the freezer 100 that maintains the supercooled state according to the embodiment of the present invention does not directly cool the object 200 to be cooled, but instead indirectly performs cooling by the cooling plate 150, The water 200 can be easily supercooled and the object 200 to be cooled can be uniformly and uniformly supercooled regardless of the position of the object 200 to be accommodated in the accommodation space 111 by indirect cooling And at the same time, can be maintained in a supercooled state.

The cooling air amount regulating space 160 is provided to automatically regulate the amount of cold air that cools the accommodation space 111 so that the cooled object 200 can be uniformly and stably maintained regardless of the amount and temperature of the object to be cooled 200. [ To a supercooling degree.

In addition, when the door 113 is opened, the cooling air remaining through the radiating heat transfer hole 153 is discharged to cover the object 200, so that the object 200 can be kept warm without an air curtain.

In addition, it is possible to uniformly cool the accommodation space 111 as a whole by adjusting the length of the cooling plate 150 or adjusting the supply of the amount of cold air by the cold air regulation plate 170.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And all changes and modifications to the scope of the invention.

100: a freezer for maintaining a supercooled state 110:
111: accommodation space 113: door
115: Illumination 120: Cooling space part
121: air inlet 123: diaphragm
125: circulating fan 130: evaporator
133: condenser 135: compressor
140: supply duct 143: cold air guide member
150: cooling plate 151: cold air discharge hole
153: radiating heat transfer hole 160: cold air amount adjusting space
170: Frost control panel 180: Shelf
200: the object to be cooled

Claims (7)

A freezing main body in which a door is installed to bring the object to be cooled into or out of the accommodation space inside,
A cooling space part including an evaporator for partitioning an upper part of the accommodating space to cool air in the accommodating space,
A circulation fan installed in the cooling space to circulate cool air,
A supply duct for guiding cool air generated in the evaporator from the cooling space portion to a lower portion of the accommodation space,
A cool air circulation path extending in a direction in which the door is positioned and spaced vertically apart from the accommodation space and communicating with the supply duct so that the cool air supplied from the supply duct is not sprayed to the object to be cooled in the accommodation space And a cooling plate for cooling the air in the accommodation space in the form of heat exchange with the air in the accommodation space and for cooling the object to be cooled with the air cooled by the heat exchange,
Wherein the cooling plate includes a cool air discharge hole protruding in a direction in which the door is positioned in a cool air circulation path communicating with the supply duct, And the cold air discharge hole is formed to be larger than the size of the radiating heat transfer hole so that the pressure of the cold air passing through the air flow path during operation of the circulation fan is equal to or lower than the lower pressure of the radiating heat transfer hole, And is discharged only to the cold air discharge hole and not to the radiating heat transfer hole,
Wherein when the circulation fan stops, the pressure of the cool air supplied to the cooling plate is released, and the cool air remaining in the cooling plate is discharged to the cool air discharge hole to keep the object to be cooled. delete delete The method according to claim 1,
The amount of the cool air supplied to the supply duct is changed to the amount of cool air supplied to the supply duct by discharging a part of the cool air to be supplied to the supply duct, And a cold air amount adjusting space
The amount of cool air discharged into the cool air amount adjusting space is automatically controlled by adjusting the pressure of the cooled object accommodated in the accommodating space according to the temperature of the cool air amount adjusting room so that the amount of cold air supplied to the supply duct is controlled So as to maintain the supercooled state. The method according to claim 1,
And a shelf for supporting the object to be cooled so as to be spaced apart from the cooling plate so that the object to be cooled does not contact the cooling plate and is cooled only by radiant heat. The method according to claim 1,
And a cool air regulating plate for regulating an amount of cool air supplied from the supply duct to the coolant plate. The method according to claim 1,
The plurality of cooling plates
Wherein at least one protruding length in a direction in which the door is positioned is differently formed.

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