JP5255378B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator having an isolation room in a refrigerator.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator includes a temperature switching chamber in which the internal temperature can be switched. The temperature switching chamber is separated from the refrigerator compartment and the freezer compartment by a heat insulating wall. Cold air from the cooler is supplied to the temperature switching chamber, and the temperature switching chamber can be maintained at a desired cooling temperature by driving the blower fan.

  A heater is provided in the temperature switching chamber. When the heater and the blower fan are driven, the heated air circulates and the temperature switching chamber is maintained at a temperature higher than the refrigeration temperature (0 ° C. to 10 ° C.). Thereby, the temperature switching chamber can be maintained in a temperature zone (about 15 ° C.) suitable for storage of red wine, pineapple, or the like.

JP-A-2006-138627 (page 3 to page 7, FIG. 3)

  However, according to the conventional refrigerator, when the temperature switching chamber is maintained at a temperature higher than the refrigeration temperature, the air heated by the heater is circulated by the blower fan. For this reason, there is a problem that the stored items, wine cork, and the like are dried because the stored item is exposed to wind. In addition, when the outside air temperature is high, cold air is supplied into the temperature switching chamber to maintain a temperature range suitable for storing red wine, pineapple, and the like. For this reason, there was a problem that the stored item, the cork of wine, and the like were dried because the stored item was blown in the same manner as described above.

  An object of this invention is to provide the refrigerator which can preserve | save the stored matter in a temperature zone higher than refrigeration temperature, and can prevent drying of a stored matter.

  In order to achieve the above object, the present invention provides a refrigerating room for discharging cool air generated by a cooler to store a stored product at a refrigerating temperature, an isolating room disposed in the refrigerating room, and an isolating room. The isolation chamber is heated to a temperature higher than the refrigeration temperature by natural convection of air heated by the heater.

  According to this configuration, the refrigerator compartment is supplied with cold air from the cooler and is maintained at the refrigerator temperature. The isolation room arranged in the refrigerator compartment is maintained at the refrigeration temperature by the cold air in the refrigerator compartment, and the air heated by the heater is naturally convected and maintained at a temperature higher than the refrigeration temperature.

  In the refrigerator having the above-described configuration, the isolation chamber is formed of a heat insulating panel in which a wall partitioning from a refrigeration temperature region is filled with a heat insulating material, and is openable and closable with air enclosed between a front plate and a back plate. The front surface is covered with a lid body. According to this configuration, the isolation chamber is disposed, for example, in the lower part of the refrigerator compartment, and the upper wall and the side wall of the isolation chamber are formed by the heat insulating panel. Further, the front surface of the isolation chamber is closed by an openable / closable lid, and is thermally insulated.

  Further, the present invention provides a refrigerator having the above-described configuration, wherein a return duct that is adjacent to the side of the isolation chamber and that has an opening at the front portion of the refrigeration chamber and into which cold air from the refrigeration chamber flows, And a return passageway that is provided on the back surface and guides the cool air flowing through the return duct to the cooler through a return port. According to this configuration, the cold air in the refrigerator compartment flows through the return duct on the side of the isolation chamber through the opening provided in the front portion, and flows through the return passage through the return port on the back surface and returns to the cooler.

  Further, the present invention is characterized in that in the refrigerator having the above-described configuration, the return duct is detachable. According to this configuration, when the return duct is detached, cold air flows through the isolation chamber, and returns from the return port to the cooler through the return passage.

  Moreover, the present invention is characterized in that in the refrigerator configured as described above, the isolation room is adjacent to a freezing room for storing stored items in a frozen state through a heat insulating wall, and the heater can be turned on and off by a user. According to this configuration, when the heater is stopped, the isolation chamber is cooled by the cold heat of the refrigerator compartment and the freezer compartment.

  Further, the present invention is characterized in that in the refrigerator configured as described above, the heater is arranged on a wall surface excluding a wall surface that separates the refrigeration temperature region of the refrigeration chamber from the isolation chamber. According to this configuration, the heater is provided on the wall surface that does not face the refrigerator compartment, and heat leakage from the heater to the region of the refrigerator temperature is prevented.

  Moreover, the present invention is characterized in that in the refrigerator configured as described above, the isolation chamber is maintained at 15 ° C. ± 2 ° C. According to this configuration, the isolation room is maintained at a temperature suitable for storage of red wine, pineapple, banana, melon, tomato, etc., and for eating watermelon, castella and the like.

  According to the present invention, the isolation room having the heater is provided in the refrigerating room, and the temperature of the isolation room is higher than the refrigerating temperature by natural convection of the air heated by the heater, so that the temperature suitable for storage is higher than the refrigerating temperature. Hot storage can be stored without drying. Further, when the outside air temperature is high, there is no need to provide a path for supplying cold air to the isolation chamber, and the structure can be simplified.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a refrigerator according to an embodiment. The refrigerator 1 has a refrigerator compartment 2 at the top, and a freezer compartment 3 is arranged below the refrigerator compartment 2. A vegetable compartment 4 is arranged below the freezer compartment 3. The refrigerator compartment 2, the freezer compartment 3, and the vegetable compartment 4 are opened and closed by doors 2a, 3a, and 4a, respectively, and partitioned by a heat insulating wall 9 (see FIG. 2). An operation panel 5 is provided in front of the door 2a of the refrigerator compartment 2, and the temperature of each storage compartment can be set.

  2 and 3 show a front view and a side sectional view of the refrigerator compartment 2. A plurality of placement shelves 13 on which stored items are placed are provided in the refrigerator compartment 2. A plurality of door pockets 16 are provided on the inner surface of the door 2a. A back panel 29 is provided on the back of the refrigerator compartment 2. A cool air passage 25 through which cool air from a cooler (not shown) flows is provided behind the refrigerator compartment 2. The cool air flowing through the cool air passage 25 discharges the cool air to the refrigerator compartment 2 from a discharge port (not shown) that opens to the side of the back panel 29. A return passage 26 for returning the cool air in the refrigerator compartment 2 to the cooler is provided in the lower rear portion of the refrigerator compartment 2.

  A wine room 6 (isolation room) and a water tank room 7 are juxtaposed on the left and right sides of the refrigerator compartment 2. The upper surfaces of the wine chamber 6 and the water tank chamber 7 are partitioned from the upper portion by a heat insulating panel 14 filled with a heat insulating material. The wine chamber 6 and the water tank chamber 7 are partitioned by a heat insulating panel 15 filled with a heat insulating material. The water tank chamber 7 is provided with a detachable water tank 7a for ice making.

  Heaters 27 and 28 that can be switched on and off by the user are disposed on the back and bottom of the wine chamber 6. A storage case 20 for storing wine W is disposed in the wine chamber 6. The storage case 20 has an upper surface and an upper front portion opened. A handle portion 20 c is provided at the lower front portion of the storage case 20.

  The upper part of the front surface of the storage case 20 is closed by a rotating container lid 30. The wine chamber 6 is an isolation chamber whose front is closed by the lower portion of the storage case 20 and the container lid 30. When the storage case 20 is pulled out by gripping the handle portion 20c, the container lid 30 engages with the storage case 20 and the lower part rotates forward to open. Thereby, the wine W can be taken out.

  As will be described in detail later, the wine chamber 6 is maintained at a temperature (15 ° C. ± 2 ° C.) suitable for storing wine higher than the refrigeration temperature (0 ° C. to 10 ° C.). For this reason, the heat insulation panels 14 and 15 prevent heat leakage upward and laterally. The container lid 30 is formed by enclosing air between a transparent front plate 30a and a back plate 30b arranged in the front and rear, and forward heat leakage is prevented by air insulation. When the material and coloring of the front plate 30a and the back plate 30b are selected so as to reduce the transmittance of ultraviolet rays (for example, colored in black), the deterioration of the wine can be reduced.

  On the right side of the wine chamber 6, a return duct 8 having an opening 8a on the front surface is provided adjacently. The opening 8a of the return duct 8 is disposed in the front part of the refrigerator compartment 2, and the cold air in the refrigerator compartment 2 flows out from the opening 8a. For this reason, cool air reaches the vicinity of the lower door pocket 16. Thereby, it is possible to prevent the stored item in the door pocket 16 from being insufficiently cooled by the hot wine chamber 6.

  FIG. 4 shows a top sectional view of the refrigerator compartment 2. A water supply pump 7b that is connected to a water tank 7a (see FIG. 2) and supplies water to an ice tray (not shown) is disposed at the rear of the water tank chamber 7. On the bottom surface of the storage case 20, a plurality of recesses 20 a on which wine W bottles are placed are formed so as to be inclined forward and backward.

  A return port 8b facing the return passage 26 (see FIG. 3) is formed at the rear end of the return duct 8. The cold air in the refrigerator compartment 2 flows into the return duct 8 through the opening 8a, flows through the return passage through the return port 8b, and returns to the cooler. Thereby, the cold air in the refrigerator compartment 2 is returned to the cooler without flowing directly through the wine compartment 6. Therefore, the wine chamber 6 can be prevented from being cooled more than necessary, and the energization amount of the heaters 27 and 28 can be reduced to obtain a temperature suitable for wine.

  In the refrigerator 1 having the above configuration, the cold air generated by the cooler flows through the cold air passage 25 as shown by an arrow A1 (see FIG. 3). The cold air flowing through the cold air passage 25 is discharged into the refrigerating chamber 2 through the discharge port as indicated by an arrow A2 (see FIG. 2). The cold air discharged into the refrigerator compartment 2 descends in the refrigerator compartment 2 and flows into the return duct 8 through the opening 8a as shown by an arrow A3 (see FIG. 2).

  The cold air flowing through the return duct 8 flows into the return passage 26 through the return port 8b as shown by an arrow A4 (see FIG. 3) and returns to the cooler. Thereby, the inside of the refrigerator compartment 2 is maintained at the refrigerator temperature (0 degreeC-10 degreeC). Moreover, the cold air produced | generated with the cooler is discharged to the freezer compartment 4, and the freezer compartment 4 is maintained below freezing point.

  The wine chamber 6 is adjacent to the region of the refrigeration temperature via the heat insulating panels 14 and 15. When the heaters 27 and 28 are turned on, the air in the wine chamber 6 is heated and naturally convected. As a result, the interior of the wine chamber 6 is maintained at a temperature suitable for storing red wine (15 ° C. ± 2 ° C.). At this time, since the temperature in the wine chamber 6 is raised by natural convection, drying of the cork can be prevented.

  This temperature is also suitable for storing pineapples, bananas, melons, tomatoes, etc., and is the temperature at which watermelon and castella are eaten. For this reason, these stored items may be stored in the storage case 20. At this time, since the inside of the wine chamber 6 is heated by natural convection, drying of each stored product can be prevented.

  The wine chamber 6 is adjacent to the refrigeration temperature region via the heat insulating panels 14 and 15 and is adjacent to the freezer compartment 3 via the heat insulating wall 9. For this reason, when the heaters 27 and 28 are turned off, the inside of the wine chamber 6 is cooled by the cold heat in the refrigeration temperature region and the cold heat in the freezer compartment 3. Thereby, the inside of the wine chamber 6 can be maintained at a refrigeration temperature (for example, 3 ° C.), and a stored product such as white wine can be refrigerated.

  According to the present embodiment, the wine chamber 6 which is an isolation chamber having the heaters 27 and 28 is provided in the refrigerating chamber 2, and the wine chamber 6 is moved from the refrigerating temperature by natural convection of the air heated by the heaters 27 and 28. Since the temperature is also high, it is possible to store a storage product having a temperature suitable for storage higher than the refrigeration temperature without drying. Further, it is not necessary to provide a path for supplying cold air to the wine chamber 6 when the outside air temperature is high, and the structure can be simplified.

  The wine chamber 6 is formed of heat insulating panels 14 and 15 whose walls partitioning from the refrigeration temperature region are filled with heat insulating material, and an openable and closable container lid 30 (with air enclosed between the front plate 30a and the back plate 30b). Since the front surface is covered by the lid), heat insulation from the region of the refrigeration temperature can be isolated and heat leakage from the wine chamber 6 can be reduced.

  Moreover, since the opening 8a into which the cool air flows into the return duct 8 is arranged at the front part of the refrigerator compartment 2, the cool air reaches the vicinity of the lower door pocket 16. Thereby, it is possible to prevent the stored item in the door pocket 16 from being insufficiently cooled by the hot wine chamber 6.

  In addition, since the wine chamber 6 is adjacent to the freezer compartment 3 and the heaters 27 and 28 can be turned on and off by the user, the heaters 27 and 28 are stopped and the freezer compartment 3 and the refrigerator compartment 2 outside the wine compartment 6 are removed. The stored product can be refrigerated by maintaining the inside of the wine chamber 6 at the refrigeration temperature by the cold heat. Thereby, the convenience of the refrigerator 1 can be improved.

  Further, the heaters 27 and 28 are not arranged on the wall surface partitioned from the refrigeration temperature region of the refrigeration chamber 2 but are arranged on the back and bottom surfaces of the wine chamber 6. For this reason, it can reduce that the heat of the heaters 27 and 28 leaks in the refrigerator compartment 2, and can improve cooling efficiency.

  Further, since the wine chamber 6 is maintained at 15 ° C. ± 2 ° C., it is suitable for storing red wine, pineapple, banana, melon, tomato, watermelon, castella and the like. In addition, when the wine chamber 6 is set to about 13 ° C., it is particularly suitable for storing red wine with a short aging period, and when it is set to about 17 ° C., it is particularly suitable for storing red wine having a long aging period. Thus, the wine chamber 6 is preferably set to 15 ° C. ± 2 ° C.

  In addition, if the temperature of the wine chamber 6 is higher than refrigeration temperature (0-10 degreeC), it can set to desired temperature. However, if the temperature exceeds room temperature (20 to 25 ° C.), the influence of heat leakage into the refrigerator compartment 2 is increased.

  In the present embodiment, the return duct 8 may be detachable. When the return duct 8 is removed, cold air flows through the wine chamber 6 and flows into the return passage 26 via the return port 8b. As a result, the wine chamber 6 can be used as a cooling chamber through which cool air flows. Moreover, since the refrigerator which can utilize the wine chamber 6 as a cooling chamber can be obtained easily, several types of refrigerators of a different type can also be provided easily.

  According to this invention, it can utilize for the refrigerator which has the isolation room in the refrigerator compartment.

The front view which shows the refrigerator of embodiment of this invention The front view which shows the refrigerator compartment of the refrigerator of embodiment of this invention Side surface sectional view which shows the refrigerator compartment of the refrigerator of embodiment of this invention Top sectional drawing which shows the refrigerator compartment of the refrigerator of embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigeration room 2a, 3a, 4a Door 3 Freezing room 4 Vegetable room 6 Wine room 7 Water tank room 8 Return duct 8a Opening part 8b Return port 9 Heat insulation wall 13 Mounting shelf 14, 15 Heat insulation panel 16 Door pocket 20 Storage Case 25 Cold air passage 26 Return passage 27, 28 Heating heater

Claims (6)

The cold air generated in the cooler is discharged from a discharge port arranged at the upper part to store the stored item at the refrigerating temperature, and the cold air in the refrigerating chamber is transferred through the return port provided at the lower back of the refrigerating chamber. A return passage returning to the cooler, an isolation chamber disposed in the lower part of the refrigerator compartment, a heater disposed in the isolation chamber, and disposed in front of the return port adjacent to the side of the isolation chamber. And a return duct through which an opening is opened at the front of the refrigerator compartment and into which the cold air of the refrigerator compartment flows , and the isolation chamber is heated to a temperature higher than the refrigerator temperature by natural convection of air heated by the heater. A refrigerator characterized by that.   The isolation chamber is formed of a heat insulating panel filled with a heat insulating material on the wall surface that separates from the refrigeration temperature region, and the front surface is covered with an openable / closable lid that encloses air between the front plate and the back plate. The refrigerator according to claim 1. The refrigerator according to claim 1 or 2 , wherein the return duct is detachable. The refrigerator according to any one of claims 1 to 3 , wherein the isolation chamber is adjacent to a freezing chamber for storing stored items through a heat insulating wall, and the user can switch on and off the heater. . The refrigerator according to any one of claims 1 to 4 , wherein the heater is disposed on a wall surface excluding a wall surface that partitions the refrigeration temperature region of the refrigerator room and the isolation chamber. The refrigerator according to any one of claims 1 to 5 , wherein the isolation chamber is maintained at 15 ° C ± 2 ° C.

Images