JP2009121784A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator uniforming an interior temperature of a refrigerating chamber and improving a volume efficiency. <P>SOLUTION: This refrigerator includes: a cooler 11 for generating cold air: a refrigerating chamber 2 having discharge openings 71m, 71n for cold air; a vegetable chamber 5 disposed below the refrigerating chamber 2; a communicating passage 34 communicating the refrigerating chamber 2 with the vegetable chamber 6; an opening and closing means 20 disposed between the discharge openings 71m, 71n and the cooler 11 to thereby open and close a cold air passage 32 communicated to the refrigerating chamber 2; and a circulating blower 23 disposed in the communicating passage 34 to deliver the cold air in the refrigerating chamber 2 to the vegetable chamber 5. When the opening and closing chamber 20 is opened, the circulating blower 23 is driven, and the circulating blower 23 is disposed in a position to overlap a bottom wall 7 of the refrigerating chamber 2 in a front projection. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator that delivers cold air to a storage room through a cold air passage.

  A conventional refrigerator is disclosed in Patent Document 1. In this refrigerator, a cold air passage is provided on the back of the refrigerator compartment, and a cooler and a blower are installed in the cold air passage. Cold air is sent to the refrigerator compartment by driving the blower, and the refrigerator compartment is cooled. In addition, the vegetable room arranged below the refrigerating room is indirectly cooled through a cooling plate made of a good heat conductor by cool air convection in the refrigerating room. Thereby, the indoor temperature of a vegetable room can be made uniform.

JP 2002-147915 A Japanese Patent Laid-Open No. 10-288440 Japanese Patent Laid-Open No. 10-47828

  However, according to the conventional refrigerator, since the cold air is sent from the blower to the refrigerator compartment, there is a problem that the room temperature of the refrigerator compartment cannot be made uniform. A cold plate similar to the vegetable room can be provided in the cold room to make the room temperature of the cold room uniform. However, in order to convect the cool air in the refrigerator compartment, it is necessary to send out the cool air vigorously by the blower, so that it is not possible to sufficiently equalize the indoor temperature of the refrigerator compartment. In addition, since the blower is disposed behind the refrigerator compartment, the volume of the refrigerator compartment is reduced, and the volume efficiency of the refrigerator is reduced.

  An object of this invention is to provide the refrigerator which can improve the volume efficiency while equalizing the room temperature of a refrigerator compartment.

  In order to achieve the above object, the present invention provides a cooler that generates cold air, a cold room having a cold air outlet, a vegetable room disposed below the cold room, the cold room, and the vegetable room. A communication passage that communicates with the refrigerator, an opening / closing means that is disposed between the discharge port and the cooler and that opens and closes the cold air passage that communicates with the refrigerating chamber; and A circulating blower for feeding to the vegetable compartment, and when the opening / closing means is opened, the circulating blower is driven, and the circulating blower overlaps the bottom wall of the refrigerator compartment or the top wall of the vegetable compartment in front projection It is characterized by having been arranged in.

  According to this configuration, when the opening / closing means is opened and the circulation fan is driven, the refrigerating chamber becomes negative pressure. The cold air generated by the cooler is sucked into the refrigerating chamber through the discharge port, flows through the cold air passage, and is discharged from the discharge port to the refrigerating chamber. The cold air discharged into the refrigerator compartment flows through the refrigerator compartment, flows into the vegetable compartment through a communication passage provided with a circulation fan, and circulates through the vegetable compartment. The circulation blower arranged in the communication passage is arranged behind the bottom wall of the refrigerator compartment or the upper wall of the vegetable compartment, and the depth of the cold passage and the communication passage facing the refrigerator compartment and the vegetable compartment is narrowly formed. When the refrigerator compartment and the vegetable compartment are adjacent, the bottom wall of the refrigerator compartment and the top wall of the vegetable compartment coincide with each other, and another storage compartment may be provided between the refrigerator compartment and the vegetable compartment.

  According to the present invention, in the refrigerator configured as described above, the refrigerator is disposed between the freezer compartment and the vegetable compartment, the cooler, and the opening / closing means, and sends cold air to the freezer compartment. A freezer compartment blower is provided, the cooler is arranged to be biased to one of the left and right behind the freezer compartment, and the communication path is arranged to the side of the cooler.

  According to this configuration, the cold air generated by the cooler by driving the freezer compartment fan is discharged into the freezer compartment. When the opening / closing means is opened, the cool air on the exhaust side of the freezer blower is branched and guided to the refrigerator compartment. The cold air that has circulated in the refrigerator compartment flows into a communication passage disposed on the side of the cooler and is guided to the vegetable compartment.

  Further, according to the present invention, in the refrigerator configured as described above, the first and second storage chambers are arranged side by side between the refrigerator compartment and the freezer compartment, and the first storage chamber is kept at a lower temperature than the second storage chamber. In addition, the cooler and the freezer compartment blower are arranged so as to be biased toward the side where the first storage compartment is arranged. According to this configuration, the cold air generated by the cooler flows through the rear of the first storage room having a temperature lower than that of the second storage room and is guided to the refrigerating room.

  Further, the present invention provides the refrigerator having the above-described configuration, in which the circulation blower is disposed so as to be inclined at a position overlapping the bottom wall of the refrigerating chamber in a front projection so that the rear is lowered, and the communication path is on the intake side of the circulation blower It is characterized in that the exhaust side is arranged in front of. According to this structure, a communicating path is derived | led-out from the back surface of the refrigerator compartment, is bent ahead behind a freezer compartment via the circulation fan arranged diagonally, and is connected with a vegetable compartment.

  Further, in the refrigerator having the above-described configuration, the circulation fan is disposed so as to be inclined at a position overlapping the upper wall of the vegetable compartment in a front projection so that the front is lowered, and the communication path is on the exhaust side of the circulation fan It is characterized in that the intake side is arranged forward than. According to this structure, a communicating path is derived | led-out from the back surface of a refrigerator compartment, passes through the back of a refrigerator compartment, bends back via the circulation fan arranged diagonally, and is connected with a vegetable compartment.

  Moreover, the present invention is characterized in that, in the refrigerator having the above-described configuration, the circulation blower is constituted by an axial fan, and the axial direction is arranged vertically.

  According to the present invention, in the refrigerator configured as described above, the cold air passage is disposed behind the refrigerator compartment, and a member made of a good thermal conductor facing the cold air passage is provided on the rear surface of the refrigerator compartment. . According to this configuration, the cold heat of the cold air flowing through the cold air passage behind the cold room is transmitted to the member made of a good heat conductor and released into the cold room.

  According to the present invention, since the circulation blower is provided in the communication path that allows the refrigerator compartment and the vegetable compartment to communicate with each other, the negative pressure is uniformly applied to the refrigerator compartment, so that the room temperature of the refrigerator compartment can be made uniform. Moreover, since a positive pressure is applied to the vegetable compartment, the vegetable compartment door can be easily opened together with a storage case for storing stored items. Furthermore, since the circulation blower is disposed at a position overlapping the bottom wall of the refrigerator compartment or the top wall of the vegetable compartment in front projection, a cold air passage with a narrow depth can be provided on the back of the refrigerator compartment. Therefore, the depth of the refrigerator compartment can be widened, and the volumetric efficiency of the refrigerator can be improved.

  Further, according to the present invention, since the cooler is disposed in the left and right sides behind the freezer compartment disposed between the refrigerator compartment and the vegetable compartment, and the communication path is disposed on the side of the cooler, the freezer compartment The depth of can be secured widely. Therefore, the volumetric efficiency of the refrigerator can be further improved.

  Further, according to the present invention, the first and second storage chambers are arranged side by side between the refrigerator compartment and the freezer compartment, and the cooler and the freezer compartment fan are arranged at a temperature lower than that of the second storage compartment. Since it is arranged to be biased to the side to be cooled, the cold heat of the cold air led from the cooler to the refrigerating room is released to the first storage room. Therefore, the cooling heat is not lost to the second storage room having a temperature higher than that of the first storage room, and the cooling efficiency of the refrigerator can be improved.

  Further, according to the present invention, the circulation blower is disposed at a position overlapping the bottom wall of the refrigerator compartment so as to be lowered at the rear, so that the depth of the communication path can be narrowed to further improve the volumetric efficiency of the refrigerator. it can. In addition, since the exhaust passage is disposed forward of the communication passage from the intake side of the circulation fan, the communication passage can be disposed in a thick heat insulating wall behind the low-temperature freezer compartment. Therefore, the circulation blower can be installed without narrowing the depth of the freezer compartment.

  In addition, according to the present invention, the circulation blower is inclined and disposed at a position overlapping the upper wall of the vegetable compartment so that the front is lowered, so that the depth of the communication path is narrowed to further improve the volumetric efficiency of the refrigerator. it can. In addition, since the intake passage is disposed in front of the exhaust side of the circulation fan, the communication passage can be disposed in a thick heat insulating wall behind the low-temperature freezer compartment. Therefore, the circulation blower can be installed without narrowing the depth of the freezer compartment.

  Further, according to the present invention, since the circulating fan is an axial fan and the axial direction is vertically arranged, the circulating fan is easily installed within the width in the height direction of the bottom wall of the refrigerator compartment or the upper wall of the vegetable compartment. be able to.

  Further, according to the present invention, since the cold air passage is disposed behind the refrigerator compartment and the member made of a good thermal conductor facing the cold air passage is provided on the back surface of the refrigerator compartment, the cold heat is uniformly discharged from the member to The room temperature can be made more uniform.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 show front views of the refrigerator according to the first embodiment with the door closed and opened. The refrigerator 1 is provided with a refrigerator compartment 2 at the top, and below the refrigerator compartment 2, a temperature switching chamber 3 and an ice making chamber 4 are arranged side by side. A freezing room 6 is arranged below the temperature switching room 3 and the ice making room 4, and a vegetable room 5 is arranged below the freezing room 6. The doors of the refrigerator compartment 2 are provided on the left and right sides of the middle and are double-opened.

  The refrigerator compartment 2 stores stored items in a refrigerator, and the vegetable compartment 5 cools and preserves vegetables at a room temperature (about 8 ° C.) higher than the refrigerator compartment 2. As will be described later in detail, the temperature switching chamber 3 can be switched by the user at room temperature. The freezer 6 stores the stored items in a frozen state, and the ice making chamber 4 communicates with the freezer 6 to make ice. The ice making chamber 4 and the freezing chamber 6 are maintained below the freezing point.

  In the lower part of the refrigerator compartment 2, a chilled chamber 21, an accessory storage chamber 102, and a water tank chamber 103, which are isolated chambers, are arranged side by side. The chilled chamber 21 is maintained in a temperature range different from that of the refrigerator compartment 2, for example, a chilled temperature range (about 0 ° C.). An ice greenhouse maintained at an ice temperature (about −3 ° C.) may be provided instead of the chilled chamber 21. In the tank chamber 103, a water tank 103a for ice making is detachably stored. The accessory storage chamber 102 is disposed in front of a cold air passage 32 (see FIG. 3) described later, and stores accessories such as eggs.

  3 and 4 show a front sectional view of the refrigerator 1 and a side sectional view passing through the tank chamber 103. The main body of the refrigerator 1 is configured by filling a foam heat insulating material 1c between the outer box 1a and the inner box 1b. The ice making chamber 4 and the temperature switching chamber 3 are separated from the refrigerator compartment 2 by a heat insulating wall 7, and the freezer compartment 6 and the vegetable compartment 5 are separated from each other by a heat insulating wall 8. Thereby, the heat insulation wall 7 forms the bottom wall of the refrigerator compartment 2, and the heat insulation wall 8 forms the top wall of the vegetable compartment 5. Further, the temperature switching chamber 3 and the freezing chamber 6 are isolated by a heat insulating wall 35, and the temperature switching chamber 3 and the ice making chamber 4 are isolated by a vertical heat insulating wall 36.

  When the foam heat insulating material 1c is filled between the outer box 1a and the inner box 1b, the heat insulating walls 7 and 8 are filled simultaneously. That is, the stock solution of the foam heat insulating material 1c is injected simultaneously between the outer box 1a and the inner box 1b and into the heat insulating walls 7 and 8 communicating with the outer box 1a, and is foamed integrally. For the conventional heat insulating walls 7 and 8, a heat insulating material such as a polystyrene foam different from the foam heat insulating material 1c between the outer box 1a and the inner box 1b has been used. By filling the heat insulating walls 7 and 8 simultaneously with the space between the outer box 1a and the inner box 1b with the foam heat insulating material 1c such as urethane foam heat insulating material, the heat insulating walls 7 and 8 can be easily formed thin. Therefore, the internal volume of the refrigerator 1 can be secured widely.

  Further, the exterior of the heat insulating walls 7 and 8 is made of a member different from the inner box 1b, and the side surfaces of the heat insulating walls 7 and 8 are opened before the foam heat insulating material 1c is filled, and the inner box 1b is formed of the heat insulating walls 7 and 8. Open to face the side. By filling the foam heat insulating material 1c, the openings on the side surfaces of the heat insulating walls 7 and 8 and the opening of the inner box 1b are connected and integrated.

  Thereby, the leakage of cold air or warm air between the storage chambers separated by the heat insulating walls 7 and 8 in different temperature zones is prevented. Therefore, it is possible to save energy by reducing heat loss. Moreover, the abnormal noise which generate | occur | produces by the vibration of the heat insulation walls 7 and 8 and the sliding of the heat insulation walls 7 and 8 and the inner case 1b by this vibration can be prevented. In addition, the structural strength can be increased by integral formation.

  The ice making room 4, the freezing room 6, the vegetable room 5 and the temperature switching room 3 are provided with a storage case 43 for storing stored items. The refrigerator compartment 2 is provided with a plurality of storage shelves 41 on which stored items are placed. A plurality of storage pockets 42 are provided on the door of the refrigerator compartment 2. As a result, the usability of the refrigerator 1 is improved.

  A machine room 50 is provided behind the vegetable room 5, and a compressor 57 (see FIG. 5) is arranged in the machine room 50. The compressor 57 is connected to a condenser, an expander (not shown) and a cooler 11, and a refrigerant such as isobutane is circulated by driving the compressor 57 to constitute a refrigeration cycle. The cooler 11 is on the low temperature side of the refrigeration cycle.

  A cool air passage 32 through which cool air flows is arranged behind the refrigerator compartment 2. The cold air passage 32 is formed by a cooling panel 70 having a member 72 made of a good heat conductor on the front surface. The cold air passage 32 has a right passage 32a and a left passage 32b that extend upward from the refrigerator compartment damper 20 (opening / closing means) and branch left and right.

  A plurality of discharge ports 71m and 71n are respectively provided at the side ends of the right passage 32a and the left passage 32b so as to open laterally. The opening areas of the lower discharge ports 71m and 71n are smaller than the opening areas of the upper discharge ports 71m and 71n. Thus, the amount of cool air discharged from lower discharge ports 71m and 71n close to the cool air inflow side of the cool air passage 32 and close to the outlet 2a described later can be limited and the cool air can be guided to the upper part. Discharge ports 101a and 101b for discharging cool air to the chilled chamber 21 are provided at the lower end of the right passage 32a.

  An outlet 2a through which the cold air from the refrigerator compartment 2 flows out is provided at the lower back of the chilled chamber 21, and a communication passage 34 is led out. A cool air return chamber 34a (see FIG. 6) is formed in the upper part of the communication passage 34. The communication path 34 opens to the vegetable compartment 5 through the inflow port 104, and connects the refrigerator compartment 2 and the vegetable compartment 5. Further, a circulation fan 23, which will be described in detail later, is disposed in the communication path 34.

  FIG. 5 shows a side sectional view through the accessory storage chamber 102 of the refrigerator 1. Behind the freezer compartment 6 is provided a cold air passage 31 partitioned by a back plate 6a. The cold air passage 31 communicates with the cold air passage 32 via the refrigerator compartment damper 20. Since the cold air immediately after flowing into the cold air passage 32 from the refrigerator compartment damper 20 is extremely low temperature (about −20 ° C. to −18 ° C.), a heat insulating material 107 is disposed inside the cold air passage 32. Thereby, dew condensation on the back wall surface of the refrigerator compartment 2 can be prevented.

  Further, on the downstream side of the refrigerator compartment damper 20, the back wall of the refrigerator compartment 2 is inclined and the depth of the cold air passage 32 is reduced to about 10 mm. Thereby, the depth of the cold air | gas channel | path 32 can be formed narrowly, and the depth of the refrigerator compartment 2 can be ensured widely.

  Moreover, the refrigerator compartment damper 20 is arrange | positioned in the position which overlaps with the heat insulation wall 7 in front projection. For this reason, the refrigerator compartment damper 20 does not protrude into the refrigerator compartment 2 or the freezer compartment 6, and the depth of the refrigerator compartment 2 and the freezer compartment 6 can be increased.

  The cool air passage 31 is partitioned into a front part 31a and a rear part 31b by a partition plate 31c, and the cooler 11 is arranged in the rear part 31b. Since the cooler 11 is arranged on the back side of the freezer compartment 6, the cold heat of the cooler 11 is released to the freezer compartment 6 side through the partition plate 31c, the front portion 31a, and the back plate 6a. For this reason, the freezer compartment 6 is indirectly cooled efficiently, and the cooling efficiency is improved.

  The cooler 11 on the low temperature side of the refrigeration cycle exchanges heat with the air flowing through the cold air passage 31 to generate cold air. A defrost heater 33 for defrosting the cooler 11 is provided below the cooler 11. Below the defrost heater 33, a drain pan 63 for receiving water by defrost is provided. The drain pan 63 is provided with a drain pipe 64, and drain water is guided to the evaporation dish 66 (see FIG. 4) disposed in the machine room 50 through the drain pipe 64.

  In the cold air passage 31, a freezer compartment fan 12 composed of an axial fan is disposed with its axial direction horizontal. The cold air passage 31 is provided with an opening (not shown) facing the ice making chamber 4 in front of the freezer fan 12. In the lower part of the freezer compartment 6, there is provided a return port 22 that opens in front of the cooler 11 and returns cool air to the cooler 11.

  As will be described in detail later, the cold air generated by the cooler 11 flows through the front portion 31 a of the cold air passage 31 by driving the freezer compartment fan 12, and is supplied to the ice making chamber 4, the freezer compartment 6, and the temperature switching chamber 3. . The cold air is supplied to the refrigerating room 2, the chilled room 21, and the vegetable room 5 through the cold air passage 32 by driving the circulation blower 23 (see FIG. 6). In the upper part of the vegetable compartment 5, there is provided a return passage 46 that opens to the front of the vegetable compartment 5 and the front of the cold air passage 31 and returns the cold air to the cooler 11.

  As shown in FIG. 3 described above, the cooler 11 is disposed to be biased toward the ice making chamber 4, and the communication path 34 is disposed to the side of the cooler 11. The cooler 11 is formed by meandering refrigerant pipes 11a through which refrigerant flows, and left and right ends of the refrigerant pipes 11a are supported by end plates 11b. A large number of fins (not shown) for heat dissipation are provided in contact with the refrigerant pipe 11a. A gas-liquid separator 45 is connected to the upper part of the refrigerant pipe 11a.

  Further, the refrigerator compartment damper 20 and the freezer compartment fan 12 are arranged in the vertical direction so as to be biased in the same direction as the cooler 11. That is, the refrigerator compartment damper 20 and the freezer compartment fan 12 are arranged so as to overlap in the planar projection. Thereby, while the width | variety of the left-right direction of the refrigerator 1 can be narrowed, the cool air passages 31 and 32 can be shortened and volume efficiency and ventilation efficiency can be improved more.

  In addition, the cooler 11, the freezer compartment fan 12, and the refrigerator compartment damper 20 are provided in one direction of the left-right direction of the refrigerator main body, and the communicating path 34 is provided in the side (temperature switching chamber 3 side) different from the cooler 11. For this reason, the refrigerator compartment damper 20 and the circulation blower 23 can be sufficiently spaced in the left-right direction. Therefore, the refrigerator compartment damper 20 and the circulation blower 23 can be stored comfortably behind the heat insulation wall 7.

  Further, an introduction ventilation path 15 that branches from the cold air passage 31 and guides the cold air to the temperature switching chamber 3 is provided. In order to secure a large volume of the temperature switching chamber 3, the vertical heat insulating wall 36 that separates the temperature switching chamber 3 and the ice making chamber 4 is arranged biased to the left in FIG. 3. When the front portion 31 a of the cold air passage 31 and the refrigerator compartment damper 20 are provided behind the temperature switching chamber 3, heat is released from the temperature switching chamber 3 to the cold air in the cold air passage 31.

  If the cold air flowing through the cold air passage 31 is, for example, −23 ° C., and the temperature switching chamber 3 is controlled to a temperature higher than the cold air (for example, 3 ° C., 8 ° C., or 50 ° C.), the heat loss increases. For this reason, the refrigerator compartment damper 20 and the front part 31a (see FIG. 5) of the cold air passage 31 are provided behind the vertical heat insulating wall 36 or on the left side thereof to prevent heat from being released from the temperature switching chamber 3 to the cold air. Yes. Thereby, cooling efficiency can be improved more.

  FIG. 7 shows an enlarged side sectional view of the refrigerator compartment 2. FIG. 8 shows a top cross-sectional view of the refrigerator 1 and is a cross-sectional view taken along line EE in FIG. The cooling panel 70 forming the cold air passage 32 is disposed on the back wall of the refrigerator compartment 2. The cooling panel 70 has a width that substantially covers the width of the refrigerator compartment 2. The cooling panel 70 has a rectangular front shape, and is formed by combining a panel base 71 made of a heat insulating material with a member 72 made of a metal plate of a good heat conductor.

  An interior lighting device 80 is provided on the ceiling of the refrigerator compartment 2. The cover 81 of the interior lighting device 80 has a width substantially equal to that of the cooling panel 70, and the depth is formed to be approximately half of the depth of the refrigerator compartment 2. Thereby, the interior lighting device 80 has a large area as a whole. An engagement portion 81a with which the end cover 73 (see FIG. 10) of the cooling panel 70 is engaged is provided at the rear corner of the cover 81.

  The cover 81 is subjected to diamond cutting, for example, and functions as a light diffusing plate. Light sources 82 made up of a plurality of LEDs are distributed and arranged at several places in the space surrounded by the cover 81. The interior lighting device 80 is lit in conjunction with the opening of the refrigerator compartment 2 door. When the interior lighting device 80 is turned on, the light emitted from the light source 82 is reflected by the cooling panel 70 and the interior of the refrigerator compartment 2 is illuminated.

  The cooling panel 70 has a member 72 disposed on the front surface of the panel base 71. As the material of the panel base 71, for example, polystyrene can be selected. As the material of the member 72, aluminum, stainless steel, copper, brass, plated steel plate, or the like can be selected. It is more desirable that the member 72 is made of aluminum in consideration of thermal conductivity, rust prevention, strength, lightness, price, and the like.

  The front surface of the cooling panel 70 is a cylindrical surface having a vertical axis, and is curved convexly. The cylindrical surface shape of the cooling panel 70 is formed by the shape of the panel base 71. The member 72 is formed in a flat plate shape and is curved in close contact with the panel base 71 when combined with the panel base 71.

  FIG. 9 is an enlarged view of a portion H in FIG. The left and right ends of the member 72 are formed with bent portions 72a that are bent into a planar U-shape. The member 72 is locked so as to hold the panel base 71 by the bent portion 72a. Thereby, the whole cooling panel 70 is covered with the member 72, the panel base 71 is not exposed, and the beauty of the cooling panel 70 is improved. In addition, the presence of the U-shaped bent portions 72 a at the left and right ends of the member 72 can increase the strength of the cooling panel 70.

  10 and 11 show a front view and a side view of the cooling panel 70. The metal surface on the surface of the member 72 is mirror-finished by buffing or the like, for example. A large number of beads 72b are formed on the surface in stripes. The beads 72b are formed to have a width of, for example, 2 mm and an interval between the beads 72b of 7 mm. The bead 72 b is formed horizontally and extends along the circumferential direction of the cylindrical surface of the cooling panel 70.

  FIG. 12 shows a rear view of the cooling panel 70. FIG. 13 shows a sectional view taken along the line DD of FIG. The panel base 71 has a lattice-like skeleton 71a. The cooling panel 70 can have sufficient strength by the skeleton 71a. A part of the skeleton part 71a projects downward, and this part becomes the cold air introduction part 71b.

  The front surface of the cold air introducing portion 71b defined by the skeleton portion 71a faces the member 72 and is filled with a heat insulating material 71d. In addition, the space between the lattices of the lower skeleton 71a close to the cold air introduction part 71b is filled with the heat insulating material 71c. The heat insulating material 71d is formed thicker than the heat insulating material 71c. Further, the heat insulating material is not buried between the lattices of the upper skeleton part 71a away from the cold air introduction part 71b, and the cold air directly hits the back surface of the member 72.

  As a result, the thermal conductivity of the cooling panel 70 (the thermal conductivity in the normal direction of the panel surface) is higher at a position away from the vicinity of the cool air introduction portion 71b. For this reason, the surface temperature of the portion close to the cool air introduction portion 71b in the cooling panel 70 does not drop compared to other portions, and the surface temperature of the cooling panel 70 becomes uniform. Thereby, the temperature nonuniformity in the refrigerator compartment 2 can be made small. In addition, condensation, frost formation, icing, and the like at a position close to the cold air introduction portion 71b can be reduced, and dripping of a large amount of water droplets due to abnormal occurrence of many of these can be prevented.

  The difference in thermal conductivity for each part of the cooling panel 70 can be easily set by the heat insulating material 71c. By increasing the thickness step of the heat insulating material 71c, the difference in thermal conductivity can be set more finely.

  In addition, a rib 71e surrounding the outer periphery is provided on the back surface of the panel base 71. A rib 71 f extending in the vertical direction is formed at the center of the back surface of the panel base 71. The upper end of the rib 71f is continuous with the rib 71e, and the lower end is separated from the rib 71e. The rear surface of the panel base 71 is divided into a right section 71g and a left section 71h by the ribs 71e and 71f.

  The right section 71g forms the right passage 32a (see FIG. 3) of the cold air passage 32, and the left section 71h forms the left passage 32a (see FIG. 3) of the cold air passage 32. A plurality of openings are formed in the ribs 71e forming the side walls of the right section 71g and the left section 71h to form discharge ports 71m and 71n.

  A rib 71i extending in the lateral direction is formed at the lower end of the rib 71f. The cold air flowing in from the cold air introducing portion 71b is guided to the left and right by the ribs 71i. In addition, throttle portions 71j and 71k are formed to restrict the flow path of the cold air led to the right passage 32a and the left passage 32b by the rib 71i. All of the ribs 71e, 71f, 71i are in close contact with the back wall of the refrigerator compartment 2.

  The positions, orientations, shapes, and dimensions of the throttle portions 71j and 71k are set so that the amount of cold air introduced corresponds to the area ratio of the right section 71g and the left section 71h. For this reason, the amount of cool air passing through the right passage 32a and the amount of cool air passing through the left passage 32b are made to be substantially the same amount even though the cold air introduction portion 71b is provided on the right side of the back wall of the refrigerator compartment 2. Can do. Thereby, the surface temperature of the cooling panel 70 is made uniform.

  Synthetic resin end covers 73 and 74 are fitted and attached to the upper and lower ends of the cooling panel 70. FIG. 14 shows a detailed view of a portion F in FIG. The end cover 73 has a claw 73 a that engages with a through hole 72 c formed in the member 72. A plurality of claws 73a are provided, whereby the end cover 73 can be attached to the cooling panel 70 without using screws or the like.

  FIG. 15 shows a detailed view of the G part in FIG. Similarly to the above, the end cover 74 also has a claw 74 a that engages with a through hole 72 d formed in the member 72. Thereby, the end cover 74 can be attached to the cooling panel 70 without using screws or the like. Furthermore, the panel base 71 is covered and covered by the end covers 73 and 74, and the aesthetic appearance of the cooling panel 70 can be improved.

  In FIG. 12, a skirt portion 74b that covers the outflow port 2a is formed in the end cover 74, and a grill 74c that forms the outflow port 2a (see FIG. 3) is formed in the skirt portion 74b. The cold air discharged from the discharge ports 71m and 71n is sucked into the communication passage 34 through the outlet 2a formed by the grill 74c.

  The cooling panel 70 can be attached to and detached from the engaging portion 81 a of the interior lighting device 80 and the engaging portion 7 a (see FIG. 8) provided on the heat insulating wall 7. At this time, since the resin-made end covers 73 and 74 have elasticity and are easy to slide, the cooling panel 70 can be easily attached and detached without using a tool in the manner of inserting a shoji or a bag.

  When the assembled cooling panel 70 is engaged with the engaging portions 81a and 7a and attached, and cold air is sent from the cold air passage 32 to the cold air introducing portion 71b, the member 72 is cooled. Since the thermal conductivity of the cooling panel 70 is adjusted by the heat insulating material 71c, the surface temperature of the member 72 is almost the same at any part.

  The member 72 whose surface is cooled maintains the temperature in the refrigerator compartment 2 at a set temperature. When the door of the refrigerator compartment 2 is opened, outside air flows in, but moisture contained in the outside air immediately condenses on the surface of the member 72. This moisture evaporates after the door of the refrigerator compartment 2 is closed, and the humidity in the refrigerator compartment 2 is maintained.

  FIG. 6 shows a side sectional view through the chilled chamber 21 of the refrigerator 1. A cool air return chamber 34a is provided in the upper part of the communication passage 34 behind the chilled chamber 21 of the refrigerator compartment 2, and the outlet 2a opens to the front of the cool air return chamber 34a. Further, the discharge port 106 (see FIG. 3) of the cold air passage 32 opens in the side wall of the cold air return chamber 34a.

  A temperature detector 105 is provided in the vicinity of the wall surface of the cold air return chamber 34a. The temperature detector 105 detects the temperature of the cold air flowing from the refrigerator compartment 2 into the cold air return chamber 34a. Based on the detection result of the temperature detection device 105, it is determined whether or not it is necessary to supply cold air to the refrigerator compartment 2, and the temperature of the refrigerator compartment 2 is controlled.

  In addition, when the stored item is stored from the outside in a part of the refrigerator compartment 2 side near the outlet 2a, the temperature of the cold air flowing out from the outlet 2a may rapidly increase due to the stored item. is there. Thereby, the temperature detection apparatus 105 detects a temperature rise, supplies cold air to the refrigerator compartment 2, and the other stored item cooled enough may be cooled too much.

  By supplying a small amount of cool air from the discharge port 106 provided in the cool air passage 32 to the cool air return chamber 34a, it is mixed with the cool air rapidly rising in temperature flowing out from the outlet 2a. Thereby, the temperature rise of cold air | gum is relieve | moderated and cooling of the stored item more than necessary can be prevented.

  As shown by the two-dot chain line 2c in FIG. 3 described above, the position of the outlet 2a may be provided away from the communication path 34 and from the center. Thereby, the mixing effect of the cold air from the discharge port 106 and the outflow port 2a can be improved, and the effect of relieving the temperature rise of the cold air can be increased. In addition, as mentioned above, the freezer compartment fan 12 and the cooler 11 are arranged so as to be biased to one of the left and right, and the communication path 34 is biased to the other and is arranged on the side of the cooler 11. For this reason, the outflow port 2a shown with the dashed-two dotted line 2c can be formed in the width | variety wide in the left-right direction near the center.

  The circulation blower 23 provided in a communication passage 34 formed extending downward from the outlet 2a is composed of an axial fan, and is disposed in the same horizontal plane so as to overlap the heat insulating wall 7 in front projection. Thereby, the circulation blower 23 is not disposed behind the refrigerator compartment 2, and the depth of the cold air passage 32 can be narrowed. Accordingly, the depth of the refrigerator compartment 2 in front of the cold air passage 32 is increased, and the volume of the refrigerator compartment 2 can be secured widely.

  In addition, the circulation blower 23 is disposed so as to be inclined so that the intake side is directed upward, the exhaust side is directed downward, and the rear is lowered. Thereby, even if the depth of the communicating path 34 is narrowed, the wide and large circulating fan 23 can be stored without difficulty, and the efficiency of suction and discharge is not reduced.

  In addition, the exhaust passage side of the communication passage 34 is disposed forward of the intake side of the circulation fan 23. Thereby, while being able to distribute | circulate cold air smoothly, the depth of the refrigerator compartment 2 can be ensured widely. In addition, the communication path 34 can be disposed in a thick heat insulating wall behind the low temperature freezer compartment 6. Therefore, the circulation fan 23 can be installed without narrowing the depth of the freezer compartment 6.

  Note that the axial direction of the circulation fan 23 may be arranged vertically. Thereby, the circulating air blower 23 can be easily installed within the width in the height direction of the heat insulating wall 7 that forms the bottom wall of the refrigerator compartment 2. Further, the circulation fan 23 may be formed by a centrifugal fan. At this time, the centrifugal fan may be arranged with the intake side facing upward and the exhaust side facing left and right, so that the cold airflow is directed downward during or after the discharge of cold air.

  A temperature switching chamber blower 18 and a heater 16 are disposed at the rear of the temperature switching chamber 3. A temperature switching chamber discharge damper 37 (see FIG. 3) is provided at the lower left portion of the temperature switching chamber 3. The temperature switching chamber discharge damper 37 is disposed in the introduction ventilation path 15 (see FIG. 3), and the temperature switching chamber blower 18 is disposed in the upper part of the introduction ventilation path 15.

  When the temperature switching chamber discharge damper 37 is opened and the temperature switching chamber blower 18 is driven, cold air flows from the cooler 11 into the temperature switching chamber 3 through the introduction ventilation path 15. The amount of air flowing into the temperature switching chamber 3 from the introduction ventilation path 15 is adjusted by the opening / closing amount of the temperature switching chamber discharge damper 37. In addition to the heater 16, the temperature switching chamber 3 is provided with a panel heater (not shown) at the bottom.

  A temperature switching chamber return damper 38 is provided below the temperature switching chamber 3. The temperature switching chamber return damper 38 opens and closes the return passage 17 extending downward, and the air in the temperature switching chamber 3 returns to the cool air passage 31 via the return passage 17.

  The air flowing through the return passage 17 is returned to the cooler 11 from an outlet 17a (see FIG. 3) provided in the middle of the cooler 11 in the vertical direction. The cold air flowing out from the freezer compartment 6 through the freezer return port 22 returns to the lower part of the cooler 11, and the cold air flowing out from the vegetable compartment 5 and passing through the return passage 46 returns to the lower part of the cooler 11.

  Therefore, the cold air flowing out from each storage chamber is returned to the cooler 11 in a dispersed manner. For this reason, the frost by the cold air containing the water | moisture content which circulated through each store room and returned does not generate | occur | produce intensively, but disperse | distributes and generate | occur | produces to the cooler 11 whole. Thereby, clogging of the cold air flow due to frost is prevented, and a decrease in cooling performance of the cooler 11 can be prevented.

  The cold air that has passed through the temperature switching chamber 3 with a small volume is cooled at the upper part of the cooler 11, and the cold air that has passed through the refrigerator compartment 3, the vegetable room 5, and the freezer room 6 with a large volume is cooled in the entire vertical direction of the cooler 11. Is done. Therefore, the cold air flowing out from the temperature switching chamber 3 is not heat exchanged with the cooler 11 more than necessary, and the heat exchange efficiency of the cooler 11 can be improved.

  The cold air flowing out of the freezer compartment 6 through the freezer compartment return port 22 is guided between the end plates 11b on both sides. The cold air flowing out from the vegetable compartment 5 is guided to the entire left and right directions inside and outside the end plates 11b on both sides of the cooler 11 via a return passage 46 (see FIG. 5).

  Thereby, the heat exchange area of the cold air flowing out from the vegetable compartment 5 becomes larger than the heat exchange area of the cold air flowing out from the freezer compartment 6. Therefore, the low temperature cold air returning from the freezer compartment 6 is not cooled more than necessary, and the high temperature cold air returning from the vegetable compartment 5 is cooled by the entire cooler 11 so that the heat exchange efficiency of the cooler 11 can be further improved.

  Since the temperature switching chamber 3 may be maintained at the freezing temperature, the end plate 11 b is provided with a notch (not shown) at a position facing the outlet 17 a of the return passage 17. Thereby, the cold air that has flowed out of the temperature switching chamber 3 can be guided between the end plates 11b on both sides to disperse the cold air. Therefore, the condensation of the cooler 11 can be dispersed and clogging can be further prevented.

  FIG. 16 is a cold air circuit diagram showing the flow of cold air in the refrigerator 1. The freezer compartment 6, the refrigerator compartment 2, and the temperature switching chamber 3 are each arranged in parallel. The ice making room 4 is arranged in series with the freezer room 6, and the vegetable room 5 is arranged in series with the refrigerator room 2. The cold air generated by the cooler 11 is sent to the ice making chamber 4 by driving the freezer blower 12. The cold air sent to the ice making room 4 flows through the ice making room 4 and the freezing room 6, flows out from the freezing room return port 22, and returns to the cooler 11. As a result, the ice making chamber 4 and the freezing chamber 6 are cooled.

  When the refrigerating blower 23 synchronized with the refrigerating room damper 20 is driven by opening the refrigerating room damper 20, negative pressure is uniformly applied to the refrigerating room 2 and the chilled room 21. Thereby, the cold air branched on the exhaust side of the freezer blower 12 flows through the cold air passage 32. The cold air flowing through the cold air passage 32 is branched into the right passage 32a and the left passage 32b by the rib 71i. A part of the cold air passing through the right passage 32a is discharged to the chilled chamber 21 through the discharge ports 101a and 101b. The cold air flowing through the chilled chamber 21 flows out from the outlet 2a.

  Moreover, the cold air | gas which distribute | circulates the right channel | path 32a and the left channel | path 32b is discharged to the refrigerator compartment 2 through the discharge ports 71m and 71n. The cold air discharged to the refrigerator compartment 2 cools the stored items in the refrigerator compartment 2 and cools the stored items in the accessory storage chamber 102 and the tank chamber 103 and flows out from the outlet 2a. The cold air flowing out from the outlet 2 a passes through the communication passage 34 via the circulation fan 23 and flows into the vegetable compartment 5 from the inlet 104.

  At this time, since the inflow port 104 is provided above the vegetable compartment 2, it is possible to reduce the pressure loss of the cold air led from the outflow port 2a to the inflow port 104 through the circulation blower 23 by the communication path 34.

  The cold air flowing into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the cooler 11 via the return passage 46. Thereby, the inside of the refrigerator compartment 2 and the vegetable compartment 5 is cooled, and if it becomes preset temperature, the refrigerator compartment damper 20 will be closed and the circulation air blower 23 will be stopped. The cool air sent to the refrigerating chamber 2 cools the member 72 of the cool air panel 70 and indirectly cools the refrigerating chamber 2 by the cold heat released from the member 72.

  The cold air branched on the exhaust side of the freezer compartment fan 12 flows into the temperature switching chamber 3 via the temperature switching chamber discharge damper 37 by driving the temperature switching chamber blower 18. The cold air that has flowed into the temperature switching chamber 3 flows through the temperature switching chamber 3, flows out of the temperature switching chamber return damper 38, and returns to the cooler 11 through the return passage 17. Thereby, the inside of the temperature switching chamber 3 is cooled.

  As described above, the temperature switching chamber 3 can switch the room temperature by a user's operation. The operation modes of the temperature switching chamber 3 are wine (8 ° C.), refrigeration (3 ° C.), chilled (0 ° C.), soft freezing (−8 ° C.), and freezing (−15 ° C.) depending on the temperature zone. Provided.

  Thus, the user can store the refrigerated product at a desired temperature by refrigeration or refrigeration. The room temperature can be switched by varying the amount of opening of the temperature switching chamber discharge damper 37. For example, when switching from a freezing room temperature to a refrigerated room temperature, the heater 16 or a panel heater (not shown) may be energized to raise the temperature. Thereby, it can switch to desired room temperature rapidly.

  By energizing the heater 16 and the panel heater (not shown), the room temperature of the temperature switching chamber 3 can be switched from the low temperature side where the stored items are cooled and stored to the high temperature side higher than normal temperature. Thereby, temporary heat insulation, warm cooking, etc. of the cooked heated food can be performed.

  Since the growth temperature of the main food poisoning bacteria is 30 ° C. to 45 ° C., the indoor temperature on the high temperature side is preferably set to 50 ° C. or more in consideration of the tolerance of the heater capacity, the temperature distribution in the temperature switching chamber 3, and the like. Thereby, propagation of food poisoning bacteria can be prevented.

  Moreover, since the heat-resistant temperature of the general resin parts used for a refrigerator is 80 degreeC, when the room temperature of a high temperature side shall be 80 degrees C or less, it can implement | achieve cheaply. In addition, in order to sterilize food poisoning bacteria, for example, in the case of enterohemorrhagic E. coli (pathogenic E. coli O157), heating at 75 ° C. for 1 minute is required. Therefore, it is more desirable to set the indoor temperature on the high temperature side to 75 ° C. to 80 ° C.

The following are test results on sterilization of food poisoning bacteria at 55 ° C. In the initial state, E. coli 2.4 × 10 ³ CFU / mL, Staphylococcus aureus 2.0 × 10 ³ CFU / mL, Salmonella 2.1 × 10 ³ CFU / mL, Vibrio parahaemolyticus 1.5 × 10 ³ CFU / ML, Cereus 4.0 × 10 ³ CFU / mL. This test sample was heated from 3 ° C. to 55 ° C. over 40 minutes, kept at 55 ° C. for 3.5 hours, then returned from 55 ° C. to 3 ° C. over 80 minutes, and the amount of each bacterium was examined again. As a result, all the bacteria were reduced to a level of 10 CFU / mL or less (not detected). Therefore, even if the set temperature on the high temperature side of the temperature switching chamber 3 is 55 ° C., there is a sufficient sterilization effect.

  According to this embodiment, since the circulation blower 23 is provided in the communication passage 34 that allows the refrigerator compartment 2 and the vegetable compartment 5 to communicate with each other, the negative pressure is uniformly applied to the refrigerator compartment 2 so that the room temperature of the refrigerator compartment 2 is made uniform. can do. Moreover, since a positive pressure is added to the vegetable compartment 6, the door of the vegetable compartment 5 can be easily opened with the storage case 43 which accommodated the store. Furthermore, since the circulation blower 23 is disposed at a position overlapping the heat insulating wall 7 that forms the bottom wall of the refrigerator compartment 2 in front projection, a cold air passage 32 having a narrow depth can be provided on the back surface of the refrigerator compartment 2. Therefore, the depth of the refrigerator compartment 2 can be widened, and the volumetric efficiency of the refrigerator 1 can be improved.

  In addition, since the cooler 11 is arranged in the left and right sides behind the freezer compartment 6 arranged between the refrigerator compartment 2 and the vegetable compartment 5, and the communication path 34 is arranged on the side of the cooler 11, The depth of the freezer compartment 6 can be ensured widely. Therefore, the volumetric efficiency of the refrigerator 1 can be further improved.

  In addition, an ice making room 4 (first storage room) and a temperature switching room 3 (second storage room) are arranged side by side between the refrigerating room 2 and the freezing room 6, and the cooler 11 and the freezing room blower 12 are heated. Since the ice making chamber 4 having a temperature lower than that of the switching chamber 3 is arranged on the side where the ice making chamber 4 is disposed, the cold heat of the cold air led from the cooler 11 to the refrigerating chamber 2 is released to the ice making chamber 4. Accordingly, the cooling temperature is not taken away by the temperature switching chamber 3 having a temperature higher than that of the ice making chamber 4, and the cooling efficiency of the refrigerator 1 can be improved.

  Next, FIG. 17 has shown side surface sectional drawing of the refrigerator of 2nd Embodiment. For convenience of explanation, the same reference numerals are assigned to the same parts as those in the first embodiment shown in FIGS. The present embodiment is different from the first embodiment in the arrangement of the circulation blower 23 arranged in the communication path 34. Other parts are the same as those in the first embodiment.

  The circulation blower 23 is composed of an axial fan, and is arranged at a position overlapping the heat insulating wall 8 forming the upper wall of the vegetable compartment 5 in the front projection with the axial direction vertical. When the circulation fan 23 is driven to open the refrigerator compartment damper 20, the refrigerator compartment 2 becomes negative pressure, and the cold air is discharged to the refrigerator compartment 2 through the cold air passage 32. The cold air flowing through the refrigerator compartment 2 flows into the vegetable compartment 5 through the communication passage 34. The cold air flowing through the vegetable compartment 5 is guided to the cooler 11 through the return passage.

  According to the present embodiment, as in the first embodiment, the circulation blower 23 is provided in the communication passage 34 that allows the refrigerator compartment 2 and the vegetable compartment 5 to communicate with each other, so that the negative pressure is uniformly applied to the refrigerator compartment 2 for refrigeration. The room temperature of the chamber 2 can be made uniform. Moreover, since a positive pressure is added to the vegetable compartment 6, the door of the vegetable compartment 5 can be easily opened with the storage case 43 which accommodated the store. Furthermore, since the circulation blower 23 is disposed at a position overlapping the heat insulating wall 8 that forms the upper wall of the vegetable room 5 in the front projection, a cold air passage 32 having a narrow depth can be provided on the back surface of the refrigerating room 2. Therefore, the depth of the refrigerator compartment 2 can be widened, and the volumetric efficiency of the refrigerator 1 can be improved.

  Further, since the axial direction of the circulation fan 23 is arranged vertically, the circulation fan 23 can be easily installed within the width of the heat insulation wall 8 in the height direction.

  Note that, as in the first embodiment, the circulation blower 23 may be inclined. At this time, if the circulation blower 23 is disposed so as to be inclined so that the front becomes lower, the depth of the communication passage 34 can be narrowed and the volume efficiency of the refrigerator 1 can be further improved. At this time, if the communication path 34 is arranged in front of the exhaust side of the circulation blower 23, the communication path 34 can be arranged in a thick heat insulating wall behind the low temperature freezer compartment 6. Therefore, the circulation fan 23 can be installed without narrowing the depth of the freezer compartment 6.

  INDUSTRIAL APPLICABILITY The present invention can be used for all refrigerators that cool the inside of a refrigerator by circulating cold air.

The front view of the refrigerator of 1st Embodiment of this invention The front view of the state which opened the door of the refrigerator of 1st Embodiment of this invention Front sectional view of the refrigerator according to the first embodiment of the present invention. Side surface sectional drawing of the refrigerator of 1st Embodiment of this invention. Side surface sectional drawing of the refrigerator of 1st Embodiment of this invention. Side surface sectional drawing of the refrigerator of 1st Embodiment of this invention. Partial enlarged view of FIG. Top sectional drawing of the refrigerator of 1st Embodiment of this invention Enlarged view of part H in FIG. The front view of the cooling panel of the refrigerator of 1st Embodiment of this invention The side view of the cooling panel of the refrigerator of 1st Embodiment of this invention The rear view of the cooling panel of the refrigerator of 1st Embodiment of this invention DD sectional view of FIG. Enlarged view of part F in FIG. Enlarged view of part G in FIG. Cold air circuit diagram of the refrigerator of the first embodiment of the present invention Side surface sectional drawing of the refrigerator of 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigerating room 2a Outlet 3 Temperature switching room 4 Ice making room 5 Vegetable room 6 Freezer room 11 Cooler 12 Freezer room blower 21 Chilled room 23 Circulation fan 31, 32 Cold air passage 32a Right passage 32b Left passage 34 Communication passage 34a Cold air Return chamber 70 Cooling panel 71 Panel base 71m, 71n Discharge port 72 Member 73, 74 End plate 102 Small article storage chamber 103 Tank chamber

Claims (7)

  A cooler that generates cold air, a cold storage room having a cold air discharge port, a vegetable room arranged below the cold storage room, a communication path that connects the cold storage room and the vegetable room, and the discharge port Opening and closing means that opens and closes a cold air passage that is arranged between the cooler and communicates with the refrigerating chamber, and a circulation fan that is arranged in the communication passage and sends out the cold air in the refrigerating chamber to the vegetable compartment, The refrigerator is characterized in that, when the opening / closing means is opened, the circulation fan is driven, and the circulation fan is arranged at a position overlapping the bottom wall of the refrigerator compartment or the top wall of the vegetable compartment in front projection.   A freezer compartment disposed between the refrigerator compartment and the vegetable compartment; and a freezer compartment fan disposed between the cooler and the opening / closing means for delivering cold air to the freezer compartment, the cooler 2. The refrigerator according to claim 1, wherein the refrigerator is disposed to be biased to one of the left and right behind the freezer compartment, and the communication path is disposed on a side of the cooler.   A first storage chamber and a second storage chamber are arranged side by side between the refrigerator compartment and the freezer compartment, the first storage chamber is kept at a lower temperature than the second storage chamber, and the cooler and the freezer compartment blower. The refrigerator according to claim 2, wherein the refrigerator is arranged to be biased toward the side on which the first storage room is arranged.   The circulation blower is disposed so as to be inclined at a position overlapping the bottom wall of the refrigerating chamber in a front projection so that the rear is lower, and the communication path is disposed on the exhaust side forward of the intake side of the circulation blower. The refrigerator according to claim 2 or 3, wherein the refrigerator is characterized.   The circulation blower is disposed so as to be inclined at a position overlapping the upper wall of the vegetable compartment in a front projection so that the front is lower, and the communication path is disposed on the intake side in front of the exhaust side of the circulation blower. The refrigerator according to claim 2 or 3, wherein the refrigerator is characterized.   The refrigerator according to any one of claims 1 to 3, wherein the circulation blower includes an axial fan and the axial direction is arranged vertically.   The cold air passage is disposed behind the refrigerator compartment, and a member made of a good thermal conductor facing the cold air passage is provided on the rear surface of the refrigerator compartment. The refrigerator described.

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