KR20170055581A - Cold And Hot Food Serving Cart Enhanced Air Conditioning Capability - Google Patents

Abstract

The present invention relates to a refrigerator having a body formed with an inner space for accommodating a plate, a heater provided in the body for generating warm air, a cooler provided in the body for generating cool air, And a thermostat separator for allowing the part and the cold section to be partitioned; The plate separation slit extends in the width direction in the heat insulating separator; A central partition wall is provided on one side wall of the heat insulating portion so as to extend in a vertical direction; A plurality of heat holes passing through the central partitions in a vertical direction; Wherein the heat hole is formed to have a different size according to a position of the central partition wall.

Description

{Cold And Hot Food Serving Cart Enhanced Air Conditioning Capability}

More particularly, the present invention relates to a warming-in wiring harness with improved air-conditioning performance in which the temperature is uniformly maintained regardless of the position inside the wiring harness.

In general, a wiring car is used for the purpose of laminating, moving and distributing a large number of plates for students, guests, and patients at schools, restaurants, hotel hospitals, and the like. However, there has been a problem that it takes a long time for the food to be distributed to the final target in the case of the above-mentioned large number of people to be fed with a wiring car, which makes it difficult to maintain the temperature of the food. In order to provide a better food service in the use of the wire car, there is a demand for a wire car that can keep the food for embankment at a proper temperature from warm food and cold food respectively in the wire car.

Korean Patent Laid-Open Publication No. 10-2015-0029995 (published on March 19, 2015) discloses a method for setting the temperature of the plate accommodating space on a body having a door and a moving wheel mounted on one side thereof, Which is provided with a heater for generating cold air and a heater for generating warm air, and a compartment assembly for partitioning the food container space into a warming unit for holding the food holding space at a temperature higher than room temperature and a cold storage unit for holding the temperature at a room temperature or lower, Car.

As shown in Fig. 1, a conventional hot-wire car 1 includes a body 10, a setting section 20, and a compartment assembly 30.

The body 10 includes a plurality of plate accommodating spaces formed therein, a setting unit 20 for controlling the operating power source and setting the temperature of the plate accommodating space, a door 60, a handle 70, A wheel 40 and a housing part 80 are provided. The size of the body 10 is determined according to the degree of receptacle accommodation of the wire harness car 1, and the receptacle receiving space is separated by providing a partition wall in the space inside the body 10. The door (60) is mounted for each of the food storage spaces separated by the barrier ribs. The body (10) has a rectangular parallelepiped shape and is filled with a heat insulating material so as to be insulated from the outside.

And a storage unit 80 for storing a handle such as an instruction to distribute the heat insulation wirings to the outside and a storage unit such as a food distribution list which can be referred to the food distribution.

The setting unit 20 is configured to control the heaters and the coolers to maintain the temperatures of the warming unit and the cold storing unit to be described later in a predetermined range. In accordance with measurement results of temperature sensors (not shown) provided in the warming unit and the cold storage unit, And the cooler.

The compartment assembly 30 is divided into a warming section for keeping the food-holding space at a temperature of room temperature or higher and a cold storage section for maintaining the temperature at a temperature below normal temperature. In detail, the compartment assemblies 30 are vertically stacked in the respective compartment receiving spaces separated through the partition walls, and are partitioned into a warming unit and a cold storage unit to form a plate storage compartment. The compartment assembly 30 according to the present invention, The guide protrusion 31 protrudes in the longitudinal direction of the compartment assembly 30 and protrudes at a predetermined height from the center of the upper surface of the compartment assembly 30 so as to correspond to the guide protrusion 31 at the center of the lower surface of the compartment assembly 30 The guide grooves 32 are formed to block the spacing spaces between the plurality of compartment assemblies 30 stacked.

2 is a view for explaining the configuration of the compartment assembly. Referring to FIG. 2, the compartment assembly 30 according to the prior art includes a top assembly 31 and a bottom assembly 33 coupled to form one compartment assembly 30. The compartment assembly 30 includes a plurality of compartments 30, A laminated wall separating the warming section and the cold storage section is formed with a constant thickness.

The guide protrusion 31 formed on the upper surface of the compartment assembly 30 has a structure in which the guide protrusion 31 is engaged with the guide groove 32 formed on the lower surface of the compartment assembly 30 stacked on the upper part.

The upper assembly 31 is fixed to the plate receiving space and the lower end assembly 33 is inserted in a vertical direction from a lower portion of the upper assembly 31. At both ends of the upper assembly 31, concave and convex portions 38 are formed. At both ends of the lower end assembly 33, concave and convex grooves 39 are formed.

An elastic member 35 for elastically supporting the lower end assembly 33 along the insertion direction in a state where the lower end assembly 33 is inserted into the upper end assembly 31 is provided in the upper end assembly 31 and the lower end assembly 33. [ The spring-like elastic members 35 are inserted into the respective partitioning preventing walls 36 and the spring insertion pillars 37 in the respective assemblies to push downward the lower end assembly 33 inserted into the upper end assembly 31.

However, in the conventional wiring harvester, when the temperature control device is operated, the temperature of the warming portion is not uniform, and thus the temperature of the food varies depending on the position where the plate is housed.

Korean Utility Model Publication No. 1995-0026599 (October 16, 1995)

DISCLOSURE OF THE INVENTION The present invention has been proposed in order to solve the above-mentioned problems, and it is an object of the present invention to provide a warming-in wiring harness with improved air conditioning performance in which heaters are formed in different sizes according to their positions to uniformly maintain the temperature of the warming- .

The present invention relates to a refrigerator having a body formed with an inner space for accommodating a plate, a heater provided in the body for generating warm air, a cooler provided in the body for generating cool air, And a thermostat separator for allowing the part and the cold section to be partitioned; The plate separation slit extends in the width direction in the heat insulating separator; A central partition wall is provided on one side wall of the heat insulating portion so as to extend in a vertical direction; A plurality of heat holes passing through the central partitions in a vertical direction; Wherein the heat hole is formed to have a different size according to a position of the central partition wall.

In the above, the one side wall of the cold storage unit is provided with an outer wall extending in the vertical direction; A plurality of cool air holes are vertically spaced from each other on the outer wall; And the cool air holes are formed in different sizes depending on the position of the outer wall.

In the above, the body is provided with a thermoelectric element unit; The thermoelectric element unit includes a thermoelectric element that is provided in contact with the warm air passage, the cold air passage, and the warm air passing cold air cylinder to generate heat and cold air, and a thermoelectric element that sucks warm air and cold air generated in the warm air cylinder and the cold air cylinder, And a plurality of fans to be supplied to the cold storage unit.

In this case, the size of the heat hole is reduced from the lower part of the central partitions toward the lower part, and a part of the heat holes is formed again in the upper part of the central partitions.

In this case, the size of the heat hole decreases as it goes upward from the lower part of the central partitions, and then the part of the heat hole increases again above the center of the central partitions.

In this case, the size of the cold air hole decreases as it goes down from the upper part of the outer wall.

The heat insulating wire according to the present invention has a different size depending on the position of the heat hole, so that the temperature of the heat insulating portion is uniformly maintained, and the temperature of the food is uniformly maintained irrespective of the position of the heat insulating portion.

1 is a perspective view showing a wiring car of the prior art,
2 is an exploded perspective view showing a compartment assembly provided inside a wiring car of the prior art,
Fig. 3 is a perspective view showing the heat insulating wire according to the present invention,
Fig. 4 is a side view showing the internal space of the wire harness according to the present invention,
Fig. 5 is a front view showing the central partition wall of the insulating wiring harness,
6 is a perspective view showing a lower member constituting a heat insulating separator,
Fig. 7 is a front view showing the lower member of Fig. 6,
8 is a perspective view showing a separating member constituting a heat insulating separator,
Fig. 9 is a front view showing the separation member of Fig. 8,
10 is a side view showing a state in which the lower member and the upper member are engaged,
11 is a front view showing a sealing member coupled to the upper member,
12 is a side view showing the sealing member of Fig. 11,
FIG. 13 is a side view showing another embodiment of the insulation wiring car according to the present invention,
Fig. 14 is a perspective view showing a thermoelectric element unit provided in the thermal insulation wiring harness of Fig. 13; Fig.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a warm-keeping wirecar will be described in detail with reference to the accompanying drawings.

Fig. 3 is a perspective view showing the insulation wiring car according to the present invention, Fig. 4 is a side view showing the internal space of the insulation wiring car according to the present invention, Fig. 5 is a front view showing a central partition wall of the insulation wiring car, 6 is a perspective view showing a lower member constituting a heat insulating separator, FIG. 7 is a front view showing a lower member of FIG. 6, FIG. 8 is a perspective view showing a separating member constituting a heat insulating separator, 11 is a front view showing a sealing member coupled to the separating member, and Fig. 12 is a front view showing the sealing member of Fig. 11, and Fig. 10 is a side view showing a state in which the lower member and the separating member are engaged. Fig. 13 is a side view showing another embodiment of the heat-insulating wirecar according to the present invention, and Fig. 14 is a perspective view showing a thermoelectric-element unit provided in the heat-insulating wirecar in Fig.

In the following description, " lateral direction " in Fig. 4 is referred to as " longitudinal direction ", and " outside " in a direction toward the outer wall 113 from the longitudinal center of the body 110, Quot; inner direction ", and " vertical direction from the paper surface " in the " width direction ".

3 to 4, the warming wire car 100 with improved air conditioning performance according to the present invention includes a body 110, a heater H, a cooler C, and a heat insulating separator 120 .

The body 110 is provided in a box shape. The body 110 has an internal space 111 formed therein to accommodate the plate. On both sides of the longitudinal direction of the body 110, a door 117 is provided to seal the internal space 111 from the outside. The door 117 is provided with a see-through window 117a so that the user can check the internal space when the door 117 is closed. The door 117 is provided for each side in the width direction so as to independently open and close the warm keeping unit 111b and the cold storage unit 111a.

The body 110 is provided at one side thereof with a driving wheel 118 connected to a motor (not shown).

The plurality of driving wheels 118 are spaced apart from each other in the width direction.

The body 110 is spaced apart from the driving wheel 118 in the longitudinal direction and provided with an auxiliary wheel 119.

The auxiliary wheels 119 are spaced apart from each other in the width direction.

A temperature adjusting dial 143 is provided on one side of the longitudinal direction of the internal space 111 of the body 110 to adjust the temperature.

A driving control part 130 is provided on one side of the body 110 in the longitudinal direction.

A power switch 131 is provided on one side of the driving controller 130. The operation regulating part 130 is provided on both sides in the width direction with an operation handle 136 extending in the width direction.

An acceleration lever 133 is provided on any one of the manipulation handles 136 provided on both sides of the driving regulator 130 in the width direction. The acceleration lever 133 is provided so as to be rotatable by being divided from the widthwise inner end of the operation handle 136.

And a forward / backward button 135 is provided at a position adjacent to the acceleration lever 133.

The driving control unit 130 includes a maximum speed adjusting dial 137 on one side thereof. The drive control unit 130 includes a display 139.

A temperature regulating power switch 141 is provided under the driving regulator 130.

Accordingly, the user can set the temperature of the internal space 111 by operating the temperature control dial 143 provided on one side of the internal space 111 after turning on the temperature regulating power switch 141.

The acceleration lever 133 is provided in a rod shape. The acceleration lever 133 is proportionally controlled by the user so that the wiring car can be moved forward or backward. The accelerator lever 133 serves as a handle for facilitating the direction maintenance and movement of the heat insulating wire car by the user.

The operation handle 136 is provided in a rod shape. The operation handle 136 serves as a knob to facilitate the user to maintain and move the direction of the heat insulating wiring harness.

The forward / backward button 135 is continuously operated so that the user can select the advancing direction of the wiring car as "forward" or "backward".

The maximum speed adjustment dial 137 allows the user to set the maximum speed at which the insulation wiring car is driven.

In the display 139, forward and backward directions of the wiring car and rear view through the rear camera are displayed. In addition, the display 139 may display the maximum speed information of the thermal insulation wiring harness and the temperature information of the inner space 111.

The inner space 111 is provided in an opening shape in the width direction. The inner space 111 is provided with a central partition 112 at the longitudinal center thereof. The inner space 111 is provided with an installation member 114 spaced downward from the upper end. A heater H is provided between the upper portion of the inner space 111 and the upper and lower direction of the installation member 114. A cooler C is provided between the upper portion of the inner space 111 and the upper and lower direction of the mounting member 114. A fan F is provided between the upper portion of the inner space 111 and the upper and lower direction of the installation member 114. On both sides of the longitudinal direction of the inner space 111, an outer wall 113 is provided to be spaced inwardly in the longitudinal direction. A heat insulating separator 120 is provided between the outer wall 113 of the inner space 111 and the longitudinal direction of the central partition wall 112.

The mounting member 114 is provided in a plate shape. The mounting member 114 is spaced outwardly in the longitudinal direction from the longitudinal center portion to form a plurality of warm holes 114b.

The outer wall 113 extends vertically. The outer wall 113 is provided with a locking protrusion 1133 extending on both sides in the longitudinal direction. The latching jaws 1133 are spaced apart from each other in the vertical direction. A cold wire (not shown) may be provided inside the outer wall 113. A plurality of cooling holes 113a may be formed in the outer wall 113 so as to be spaced apart from each other in the vertical direction.

The size of the cooling hole 113a is reduced from the upper portion of the outer wall 113 downward.

Accordingly, a relatively large amount of cold air is discharged to the upper portion, so that the temperature of the cold storage unit 111a can be uniformly maintained regardless of the vertical height.

As shown in FIG. 5, the central partition wall 112 extends vertically. The central partition wall 112 divides the internal space 111 to accommodate the plate 2 in two rows. A median separator 1123 is provided at a central portion in the width direction of the central partition wall 112. The central partition wall 112 is provided with a latching protrusion 1121 extending on both sides in the longitudinal direction. A heating wire (L) connected to the heater (H) is provided in the central partition wall (112). A temperature sensor (not shown) for maintaining the temperature is provided in the upper part of the central partition wall 112. A plurality of heat holes 112a are vertically spaced from each other on the central partition wall 112. The size of the heat hole 112a decreases from the upper portion of the central partition wall 112 to the lower portion and increases again.

The size of the heat hole 112a is increased from the lower portion of the central partition wall 112 and then increased in size from the upper portion of the central partition wall 112 to the position where the second central locking tab 1121 is located .

The median separator 1123 extends vertically. The median separator 1123 is vertically spaced to form a plurality of separator holes 1123a. The separator 1123 allows the plate to be supported in the width direction. The separation hole 1123a is formed so as to decrease from the upper portion to the lower portion of the separation portion 1123 and increase again. The separator hole 1123a may be formed to extend in the width direction so that the warm air is discharged toward the plate in the widthwise outer side surface of the center separator 1123.

As described above, the heat hole 112a and the separator hole 1123a are formed in a decreasing shape and decreasing in the downward direction, so that the upper heat in the central partition wall 112 can not be discharged, A relatively large amount of warm air is supplied to the lower part, and the uniform internal temperature can be maintained regardless of the height of the warming part 111b.

The central locking tabs 1121 are vertically spaced apart from one another. The center stopping jaw 1121 is provided at the same height as the stopping jaw 1133. Therefore, the plate 2 is supported by both of the longitudinally opposite end portions of the plate 2 with the engaging protrusion 1133 and the central engaging tab 1121, respectively.

As shown in FIGS. 6 to 12, the heat insulating separator 120 includes a plurality of separator members 123. The heat insulating separator 120 is formed by stacking the separator members 123 in the vertical direction. The thermostat separator 120 divides the internal space 111 into a cold storage unit 111a and a warming unit 111b.

The separation member 123 is provided in a rod shape. The separator member 123 extends in the width direction. The separation member 123 is formed with a coupling groove 123b at the center thereof in the width direction. On the upper surface of the separation member 123, an upper coupling protrusion 1233 protrudes upward at a central portion in the width direction. The separator member 123 is formed with a screw hole 123a at the center in the width direction. The separator member 123 is provided with upper flanges 1231 on both sides in the width direction. The separation member 123 is formed with a sealing groove 1235 on both sides in the width direction of the separation member 123.

The sealing groove 1235 is spaced inward in the width direction of the sealing groove 1235 to form a sealing groove 1235a. The sealing groove 1235a extends vertically inwardly.

The sealing member 125 is coupled to the separator member 123 by the sealing groove 1235. [

The sealing member 125 is provided in a rod shape. The sealing member 125 extends in the width direction. The sealing member 125 is provided with a fixing protrusion 1251 protruding in the width direction of the sealing member 125. The sealing member 125 has a seal lip 1253 extending downward. The sealing member 125 is made of a rubber material. Examples of the rubber material include silicone.

The fixing protrusions 1251 are formed with protrusions 1251a spaced apart from the width direction of the suture member 125. A protrusion groove 1251b is formed between the upper and lower ends of the fixing protrusion 1251.

The projection protrusions 1251a are formed to extend outwardly in the vertical direction.

The protrusions 1251b extend in the width direction, and the fixing protrusions 1251 are divided in the vertical direction.

The fixing protrusion 1251 is inserted into the sealing groove 1235. At this time, the projection jaw 1251a is fixed to the sealing groove 1235a. When the fixing protrusion 1251 is coupled to the sealing groove 1235 by the protrusion groove 1251b, the fixing protrusion 1251 can be pressed in the vertical direction and assembled into the sealing groove 1235 easily.

The upper coupling protrusion 1233 of the lower separating member 123 is coupled to the coupling groove 123b of the upper separating member 123 so that the plurality of separating members 123 are stacked vertically, A heat insulating separator 120 is formed.

The projecting height of the upper engaging projection 1213 is longer than the depth of the engaging groove 123b. Therefore, the separator member 123 stacked up and down is vertically spaced, and the plate slit 120a is formed in the spaced apart space.

The length of the seal lip 1253 extending downward from the lower surface of the separator member 123 is smaller than the length of the separator member 123 when the separator member 123 coupled with the sealing member 125 is stacked in the vertical direction, The seal lip 1253 is pressed upward by the upper surface of the separator member 123 provided at the lower portion of the seal lip 1253 so that the length of the seal lip 1253 is longer than the length of the plate slit 120a, Or may be disposed outside the longitudinal direction of the separator member 123 provided at the lower portion.

The air flow between the cold storage unit 111a and the warming unit 111b partitioned by the warming separator 120 is blocked by the seal lip 1253 of the sealing member 125 to increase the heat insulating effect. When the plate 2 is received in the plate slit 120a, the seal lip 1253 is deformed on the upper surface of the plate 2 to press the plate 2 downward, An improvement effect is also generated.

A support base 126 may be coupled to the center of the widthwise center of the upper and lower separator members 123.

The support base 126 is provided in a rod shape. The support base 126 extends vertically. The support base (126) allows the accommodated plate to be supported in the width direction.

As shown in FIG. 4, the heat insulating separator 120 may further include a lower member 121.

6 and 7, the lower member 121 is provided in a plate shape. The lower member 121 is extended in the width direction. The lower member 121 is provided at the lowermost part of the heat insulating separator 125. The lower member 121 is provided with a lower engaging protrusion 1213 protruding upward in the central portion in the width direction of the upper surface. The fitting portion 121 is formed with a screw hole 121a at the center in the width direction.

A screw is inserted into the screw hole 121a in order to engage the support member 126 and the lower member 121.

The lower member 121 is coupled to the coupling groove 123b of the separator member 123 located at the upper portion of the lower member 121 and is stacked up and down.

The projecting height of the lower engaging protrusion 1213 is longer than the depth of the engaging groove 123b.

Therefore, the plate slit 120a is formed between the lower member 121 and the separator member 123 stacked up and down.

The lower member 121 is provided so that the separator member 123 is spaced upward from the bottom surface of the inner space 111.

The structure and effect of the separating member 123 stacked on the upper part of the lower member 121 and the sealing member 125 coupled to the separating member 123 are the same as those described above.

As shown in FIGS. 13 to 14, the hot-wire wiring harness 100 having improved air conditioning performance according to the present invention may be provided with a thermal insulation and cooling function by the thermoelectric element unit 150 according to another embodiment.

The thermoelectric element unit 150 is provided on the upper surface of the mounting member 114. The thermoelectric element unit 150 includes a thermoelectric element 152 provided between the thermoelectric element unit 151 and the cool air tube 155 and between the thermoelectric element unit 151 and the cool air tube 155, And a plurality of fans F for sucking warm and cool air generated in the cold air circulation pipe 151 and the cold air circulation pipe 155 and supplying them to the warming unit 111b and the cold storage unit 111a, respectively.

The mounting member 114 is spaced downward from the upper end of the inner space 111. The mounting member 114 is provided in a plate shape. The mounting member 114 is spaced outwardly in the longitudinal direction from the longitudinal center portion to form a plurality of warm holes 114b. The warming hole 114b is formed in the upper part of the warming unit 111b. The mounting member 114 is spaced inwardly from both ends in the longitudinal direction to form a cool air flow hole 114a. The cold air flow hole 114a is formed in the upper part of the cold storage unit 111a.

The on cylinder 151 is provided on the upper surface of the mounting member 114. The ON-cylinder 151 is provided as a hollow tube. One end of the warm pipe 153 is connected to one side of the heat pipe 151 in the longitudinal direction.

The warming pipe 153 is provided on the upper surface of the mounting member 114. The warming pipe 153 is provided as a hollow tube. The heat pipe 153 serves as a passage through which the warm air generated from the heat cylinder 151 is discharged to the outside.

A fan (F) is connected to the lower end of the warming pipe (153). The fan F sucks warm air discharged through the warm pipe 153 and supplies the warm air to the warming unit 111b. The fan F for supplying the warmth is provided in the upper part of the warm hole 114b.

The cooling air cylinder 155 is provided on the upper surface of the installation member 114. The cool air cylinder 155 is provided as a hollow tube. One end of the cold air pipe (157) is connected to one side of the cold air cylinder (155) in the longitudinal direction.

The cooling pipe 157 is provided on the upper surface of the mounting member 114. The cooling pipe 157 is provided as a hollow pipe. The cool air pipe (157) is a passage through which the cool air generated from the cool air cylinder (155) is discharged to the outside.

A fan (F) is connected to the lower end of the cooling pipe (157). The fan (F) sucks cold air discharged through the cold air pipe (157) and supplies the cold air to the cold storage unit (111a). The fan F for supplying the cool air is provided at an upper portion of the cool air flow hole 114a.

The cool air flows through the inside of the outer wall 113 and can be supplied to the cold storage unit 111a through the cool air hole 113a.

The thermoelectric element 152 is provided in contact with the warm air cylinder 151 and the cold air cylinder 155. The thermoelectric element 152 is connected to the electric wire 152a to receive electricity. When the thermoelectric element 152 is supplied with electricity, heat is generated at one side and temperature is lower at the other side. The portion of the thermoelectric element 152 where the heat is generated is provided in contact with the heat cylinder 151. A portion of the thermoelectric element 152 where the temperature is lowered is in contact with the cool air cylinder 155.

Therefore, the temperature of the air inside the warm cylinder 151 that is in contact with the heat generated is increased to generate warm air, and the temperature of the air in the cool air cylinder 155 in contact with the portion where the temperature is lowered is lowered Cold air is generated.

In another embodiment of the present invention, the hot-wire wiring car may further include a heater line H connected to the thermoelectric element unit 150 and a heat line L connected to the heater H.

As described above, the warming wire car 100 with improved air conditioning performance according to the present invention has a structure in which the insulating slit 121 formed in the heat insulating separator 120 dividing the warming portion 111b of the internal space 111 and the cold storage portion 111a, The heat insulating performance of the heat insulating member 120 is improved and the heat insulating performance of the heat insulating member 120 is increased to improve the cooling and warming function as well as the fixability of the plate 2, The upper and lower portions of the heat insulating portion 112a are formed to have a decreasing size from the upper portion to the lower portion of the central partition wall 112 and to increase the upper and lower temperatures uniformly.

Although the present invention has been described with reference to the embodiments shown in the drawings, it will be understood that the present invention is merely illustrative and that various modifications and equivalent embodiments are possible for those skilled in the art. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: Warm-up wiring car with improved air conditioning performance
110: main body 111: inner space
120: heat insulating separator 125: sealing member
130: drive control unit 141: temperature control power switch
143: Temperature control dial 150: Thermoelectric element unit

Claims (6)

A heater 110 installed in the body 110 to generate warm air and a cooler C installed in the body 110 to generate cold air, And a thermostat 120 extending upward and downward in the internal space 111 to partition the thermostat 111b and the thermostat 111a; A plate slit 120a extends in the width direction in the heat insulating separator 120; On one side wall of the heat retaining portion 111b, a central partition wall 112 extends upward and downward; A plurality of heat holes 112a are vertically spaced from the central partition wall 112; Wherein the heat hole (112a) is formed to have a different size according to a position of the central partition wall (112). The refrigerator according to claim 1, wherein an outer wall (113) extends in a vertical direction on one side wall of the cold storage unit (111a); A plurality of cooling holes (113a) are formed in the outer wall (113) so as to be spaced apart from each other in the vertical direction; Wherein the cooling hole (113a) is formed to have a different size according to a position of the outer wall (113). 2. The apparatus of claim 1, wherein the body (110) is provided with a thermoelectric element unit (150); The thermoelectric element unit 150 includes a thermoelectric element 152 which is provided in contact with the warm air cylinder 151, the cool air cylinder 155 and between the warm air cylinder 151 and the cool air cylinder 155 to generate heat and cool air, And a plurality of fans F for sucking warm and cool air generated in the warm air cylinder 151 and the cold air cylinder 155 and supplying the warmed air and the cold air to the warming unit 111b and the cold storage unit 111a, respectively Warm-up wiring with improved air conditioning performance. The heat sink according to claim 1, wherein a size of the heat hole (112a) is reduced from the lower portion of the central partition wall (112) To improve the air conditioning performance. 5. The air conditioner according to claim 4, wherein a size of the heat hole (112a) decreases from an upper portion of the central partition wall (112) to an upper portion of the central partition wall (112) Improved thermal insulation cable. 3. The air conditioner according to claim 2, wherein a size of the cool air hole (113a) is reduced as it goes down from the upper portion of the outer wall (113).

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