JP4693449B2 - refrigerator - Google Patents

Description

  The present invention relates to a refrigerator including a temperature switching chamber that can be switched to a desired room temperature by a user.

  In recent years, where the living environment has changed significantly, more and more families have different times for their families to eat. For this reason, in order to keep the heated food warm, a heat insulation box or a heat storage container is used. Thereby, the effort which cooks many times can be saved.

On the other hand, Patent Document 1 discloses a refrigerator provided with a temperature switching chamber in addition to a freezer compartment and a refrigerator compartment. This refrigerator includes a damper device that opens and closes a passage of cool air sent to the temperature switching chamber, and a heater that raises the temperature of the temperature switching chamber. Thereby, the room temperature of the temperature switching chamber can be switched to a desired low temperature range such as freezing, refrigeration, partial, chilled, etc. according to the user's application.
Japanese Patent Laid-Open No. 10-288440

  However, when a heat insulation box or a storage container is used to keep the heated food warm, there is a problem that it is difficult to secure an installation place and a problem that a user's economic burden is increased. In addition, there is a problem in that it requires a complicated operation of transferring the food and is not convenient.

  It is an object of the present invention to provide a highly convenient refrigerator that reduces economic burden and facilitates securing of a place.

In order to achieve the above object, the refrigerator of the present invention can switch the room temperature between a low temperature side for refrigerated storage or frozen storage and a high temperature side for keeping heated food by cooling with a cooling device and heating with a heater. In a refrigerator provided with a temperature switching chamber, the heater is a thermal radiation heater, the indoor temperature on the high temperature side is 50 ° C. or higher, and a storage case disposed in the temperature switching chamber and a storage covering the storage case Provided with a case cover, and provided with a blower that sends cold air or air that has exchanged heat with the heater to the front of the temperature switching chamber along the storage case cover via an inflow port provided at the upper back of the temperature switching chamber. The blower is positioned upstream of the heater, at least a part of the rear surface of the storage case cover is opposed to the inlet, and the rear surface of the storage case is the front Positioned below the inlet, is characterized in that a flow path between the back and the inlet of the housing case cover opposite to the inlet.

  According to this configuration, when the temperature switching chamber is switched to the low temperature side, cold air is introduced from the cooling device to become a low temperature chamber for freezing, partial, chilled, refrigerated, or the like. Thereby, a store thing can be stored refrigerated or frozen. When the temperature switching chamber is switched to the high temperature side, the heater is driven and the temperature switching chamber becomes hot. Thereby, temporary heat insulation of the cooked food can be performed. A storage case for storing stored items is provided in the temperature switching chamber, and the storage case is covered with a storage case cover. The storage case cover prevents the stored item from being dried by direct hot air hitting the stored item.

The present invention is characterized in that inclined as in the refrigerator structured as described above, the front at least a portion of the back surface of the storage case cover opposite the front Symbol inlet with respect to the horizontal becomes upward.

  According to this structure, cold air or hot air is sent out from the inlet provided at the upper back of the temperature switching chamber. The air sent into the temperature switching chamber is sent toward the back of the inclined storage case cover, and flows through the temperature switching chamber along the storage case cover.

  According to the present invention, in the refrigerator configured as described above, a grill having a wind direction plate for regulating a wind direction is provided at the inflow port, and the wind direction plate is inclined so that the front is upward with respect to the horizontal. According to this configuration, the air is sent upward from the inflow port, and flows through the temperature switching chamber along the storage case cover.

  Moreover, the present invention is characterized in that, in the refrigerator having the above-described configuration, the surface shape of the storage case cover is made uneven. According to this configuration, the surface area of the storage case cover increases due to the uneven shape.

  According to the present invention, in the refrigerator configured as described above, the storage case cover is made of metal. According to this configuration, the heat in the temperature switching chamber is transmitted to the storage case via the metal storage case cover.

  According to the present invention, in the refrigerator configured as described above, the storage case is made of a metal whose surface is covered with a resin.

  According to the present invention, since the temperature switching chamber that can switch the room temperature between the low temperature side for storing the refrigerated or frozen storage and the high temperature side for keeping the heated food is provided, the economic burden for keeping the heated food warm is provided. It is possible to provide a highly convenient refrigerator while reducing the location and making it easy to secure a place. In addition, a storage case cover is provided to cover the storage case by placing a storage case in the temperature switching room, so that the stored product is prevented from drying due to direct hot air hitting the stored product, and food stored outside the storage case can be prevented. Odor transfer can be prevented.

  Further, according to the present invention, since the back surface of the storage case cover facing the inflow port is inclined with respect to the direction perpendicular to the direction of air sent from the inflow port provided at the upper back of the temperature switching chamber, the inflow port The turbulent flow due to the air sent out from the vehicle colliding with the storage case cover can be reduced. Therefore, air can smoothly flow through the temperature switching chamber to improve the air blowing efficiency, and the inside of the storage case can be set to a more uniform temperature.

  Further, according to the present invention, the wind direction plate provided on the grill is inclined so that the front is upward with respect to the horizontal, so that it faces the inlet with respect to the direction perpendicular to the direction of the air sent from the inlet. The back surface of the storage case cover can be greatly inclined.

  In addition, according to the present invention, since the surface shape of the storage case cover is made uneven, the surface area of the storage case cover can be increased, the inside of the storage case can be made more uniform, and the strength of the storage case cover can be improved can do.

  Further, according to the present invention, since the storage case cover is made of metal, heat is transferred to the storage case through the entire storage case cover by heat conduction of the storage case cover, so that the storage case has a uniform temperature. Can do.

  According to the present invention, since the storage case is made of metal whose surface is covered with resin, the heat in the temperature switching chamber is efficiently transferred to the storage case, and there is a risk of burns when the user grips the storage case. Can be prevented.

  Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a right side view showing the refrigerator of the first embodiment. The refrigerator 1 is provided with a refrigerator compartment 2 in the upper stage, and a temperature switching room 3 and an ice making room 4 in the middle stage. A vegetable room 5 and a freezer room 6 are arranged in the lower stage of the refrigerator 1.

  The refrigerating room 2 has a double door and stores stored items in a refrigerator. The temperature switching chamber 3 is provided on the left side of the middle stage, and the room temperature can be switched by the user. The ice making chamber 4 is provided on the right side of the middle stage and performs ice making. The vegetable room 5 is provided on the lower left side and is maintained at a temperature suitable for vegetable storage (about 8 ° C.). The freezer compartment 6 is provided on the lower right side and communicates with the ice making compartment 4 to store the stored items in a frozen state.

  FIG. 3 is a right side sectional view of the refrigerator 1. The freezing compartment 6 and the ice making compartment 4 are provided with a storage case 11 for storing stored items. A similar storage case is provided in the vegetable room 5 and the temperature switching room 3. The refrigerator compartment 2 is provided with a plurality of storage shelves 41 on which stored items are placed. A storage pocket 42 is provided on the door of the refrigerator compartment 2. Thereby, the usability of the refrigerator 1 is improved. A chilled chamber 23 maintained at a chilled temperature zone (about 0 ° C.) is provided in the lower part of the refrigerator compartment 2.

  A cold air passage 31 is provided behind the freezer compartment 6, and an evaporator 17 connected to the compressor 35 is disposed in the cold air passage 31. A cold air passage 32 communicating with the cold air passage 31 is provided behind the refrigerator compartment 2. A refrigerant such as isobutane is circulated by driving a compressor 35 connected to a condenser and an expander (both not shown) to operate a refrigeration cycle. As a result, the evaporator 17 on the low temperature side of the refrigeration cycle exchanges heat with air to generate cold air. Therefore, the compressor 35 and the evaporator 17 constitute a cooling device that generates cold air together with the condenser and the expander.

  A blower 18 is disposed in the cold air passage 31, and a blower 28 is disposed in the cold air passage 32. As will be described in detail later, the cold air generated by the evaporator 17 is supplied to the freezer compartment 6, the ice making chamber 4, the chilled chamber 23, and the temperature switching chamber 3 through the cold air passage 31 by driving the blower 18. Further, the fan 28 is supplied to the refrigerator compartment 2 and the vegetable compartment 5 through the cold air passage 32.

  FIG. 4 is a right side sectional view showing the temperature switching chamber 3. The upper and lower surfaces of the temperature switching chamber 3 are partitioned from the refrigerator compartment 2 and the vegetable compartment 5 by heat insulating walls 7 and 8. The front surface of the temperature switching chamber 3 can be opened and closed by a rotating door 9. The side surface of the temperature switching chamber 3 is insulated from the ice making chamber 4 and the freezing chamber 6 by a heat insulating wall (not shown). The storage case 51 disposed in the temperature switching chamber 3 is made of a resin molded product, and can be drawn out and put in and out stored items.

  The upper surface of the storage case 51 is covered with a storage case cover 37. The storage case cover 37 is made of metal such as stainless steel or aluminum and can be opened and closed. Thereby, drying of the stored matter by a hot air hitting a stored matter directly is prevented. In addition, it is possible to prevent the odor of the food from moving out of the storage case. In addition, since heat is transferred to the storage case 51 through the entire storage case cover 37 by the heat conduction of the storage case cover 37, the inside of the storage case 51 can be kept at a uniform temperature.

  The back surface of the temperature switching chamber 3 is covered with a back plate 33. A grill 40 in which a plurality of wind direction plates 40 a are arranged in the vertical direction is provided on the back plate 33. An inlet 33 a through which air flows into the temperature switching chamber 3 is formed by the grill 40. The back surface of the storage case cover 37 faces the inflow port 33a, and is inclined so that the front is upward with respect to the horizontal. The wind direction plate 40a of the grill 40 is inclined so that the front is upward.

  As a result, the back surface of the storage case cover 37 is inclined at a large angle θ with respect to a direction perpendicular to the air sending direction N sent from the inflow port 33a. Thereby, the air sent out from the inflow port 33a circulates along the storage case cover 37, and the turbulent flow due to the air colliding with the storage case cover 37 can be reduced. Therefore, air can smoothly flow through the temperature switching chamber 3 to improve the blowing efficiency. Further, heat is uniformly transmitted from the surroundings of the storage case 51 and the storage case cover 37, so that the inside of the storage case 51 can be brought to a more uniform temperature.

  An outlet 33 b through which air flows out of the temperature switching chamber 3 is provided below the temperature switching chamber 3. Further, temperature sensors 24 and 30 for detecting the temperature of air are provided in the vicinity of the inlet 33a and the outlet 33b.

  An introduction ventilation path 12 is provided behind the back plate 33 and the heat insulating wall 10 that forms the outer wall. The introduction ventilation path 12 is provided with a temperature switching chamber discharge damper 13 (see FIG. 5), and communicates with the cold air passage 31 to guide the cold air generated in the evaporator 17 (see FIG. 3) to the temperature switching chamber 3. The cool air path between the evaporator 17 and the inflow side of the temperature switching chamber 3 is opened and closed by opening and closing the temperature switching chamber discharge damper 13, and the amount of air flowing into the temperature switching chamber 3 from the introduction ventilation path 12 is adjusted by the opening and closing amount. .

  In the introduction ventilation path 12, a blower 14 is provided between the temperature switching chamber discharge damper 13 and the inflow port 33a. A lot of cool air is led from the cool air passage 31 to the temperature switching chamber 3 by driving the blower 14.

  A temperature switching chamber return damper 20 is provided behind the outlet 33b. The temperature switching chamber return damper 20 has openings 20a and 20b, and has a rotating plate 20c that opens one side by rotation and closes the other. When the opening 20b is opened, the air flowing out from the temperature switching chamber 3 is guided to the evaporator 17 via the return ventilation path 19 (see FIG. 5).

  When the opening 20a is opened, the air flowing out from the temperature switching chamber 3 is guided to the intake side of the blower 14, and the cool air path between the outflow side of the temperature switching chamber 3 and the evaporator 17 is closed. Therefore, the air in the temperature switching chamber 3 can be circulated as shown by the arrow F by driving the blower 14, closing the opening 20 b and closing the temperature switching chamber return damper 20. Note that the blower 14 may be provided in the temperature switching chamber 3.

  A heater 15 is provided behind the inlet 33 a of the temperature switching chamber 3. The heater 15 is formed of a heat radiation type glass tube heater, and raises the temperature of the temperature switching chamber 3 by radiant heat released through the back plate 33. The blower 14 is disposed so as to blow toward the surface of the heater 15. Thereby, the surface temperature of the heater 15 can be lowered and safety can be improved. Further, the outlet 33b is provided with a temperature fuse 30 that cuts off the energization of the heater 15 when the temperature reaches a predetermined temperature.

  FIG. 5 is a front sectional view of the vicinity of the middle stage of the refrigerator 1. The cool air passage 31 behind the freezer compartment 6 opens at the upper front of the blower 18, and air is sent to the ice making chamber 4 by the blower 18. A freezer compartment damper 22 is provided below the freezer compartment 6 that communicates with the ice making compartment 4. A return ventilation path 21 (see FIG. 3) is provided in the lower rear part of the freezer compartment 6 to guide air to the evaporator 17 via the freezer damper 22 and return to the cool air passage 31. The amount of air flowing out of the freezer compartment 6 is adjusted by opening and closing the freezer compartment damper 22.

  The upper part of the cold air passage 31 communicates with the cold air passage 32 via the refrigerator compartment damper 27. Further, the cold air passage 31 is branched between the blower 18 and the refrigerator compartment damper 27, and the introduction ventilation path 12 (see FIG. 4) is provided. The introduction ventilation path 12 further branches, communicates with the temperature switching chamber via the temperature switching chamber discharge damper 13, and communicates with the chilled chamber 23 via the chilled chamber damper 25.

  A refrigerator outlet (not shown) is opened at the lower back of the refrigerator compartment 2 and a vegetable compartment inlet (not shown) is provided in the vegetable compartment 5. The refrigerator compartment outlet and the vegetable compartment inlet are connected by a passage (not shown) passing through the back surface of the temperature switching chamber 3 so that the refrigerator compartment 2 and the vegetable compartment 5 communicate with each other.

  The temperature switching chamber return damper 20 is provided in the lower left part of the temperature switching chamber 3. Behind the temperature switching chamber 3 and the vegetable chamber 5 is provided a return ventilation path 19 that extends downward from the temperature switching chamber return damper 20 and communicates with the return ventilation path 21 (see FIG. 3). As described above, the air in the temperature switching chamber 3 is guided to the evaporator 17 through the return ventilation paths 19 and 21 by opening the opening 20b (see FIG. 4) of the temperature switching chamber return damper 20. A vegetable room outlet (not shown) communicating with the return ventilation path 19 is provided on the back of the vegetable room 5.

  FIG. 6 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. Further, the ice making room 4 is arranged in series with the freezing room 6, and the chilled room 23 and the vegetable room 5 are arranged in series with the refrigerating room 2. The cold air generated by the evaporator 17 is sent up to the ice making chamber 4 by raising the cold air passage 31 as shown by an arrow A (see FIG. 5) by driving the blower 18. The cold air sent to the ice making room 4 flows through the ice making room 4 and the freezing room 6 and flows out from the freezing room damper 22. And it returns to the evaporator 17 via the return ventilation path 21. As a result, the ice making chamber 4 and the freezing chamber 6 are cooled.

  The cold air branched at the upper part of the cold air passage 31 by driving the blower 28 circulates through the cold air passage 32 through the refrigerator compartment damper 27 as shown by an arrow B (see FIG. 5). The cold air flowing through the cold air passage 32 is discharged into the chilled chamber 23 and the refrigerator compartment 2 through the discharge port 32a. As shown by the arrow C (see FIG. 5), the cold air branched from the cold air passage 31 is sent to the chilled chamber 23 through the chilled chamber damper 23. These cold air flows through the refrigerating room 2 and the chilled room 23, then flows out from the refrigerating room outlet (not shown) and flows into the vegetable room 5.

  The cold air flowing into the vegetable compartment 5 flows through the vegetable compartment 5 and returns to the evaporator 17 via the return passages 19 and 21. Thereby, the inside of the refrigerator compartment 2 and the vegetable compartment 5 in which the chilled compartment 23 is provided is cooled, and the refrigerator compartment damper 27 and the chilled compartment damper 23 are closed when the set temperature is reached.

  Further, the cold air branched at the upper portion of the cold air passage 31 by driving the blower 14 circulates through the introduction ventilation path 12 as shown by an arrow D (see FIG. 5), and enters the temperature switching chamber 3 via the temperature switching chamber discharge damper 13. Inflow. The cold air that has flowed into the temperature switching chamber 3 flows through the temperature switching chamber 3 and flows out of the temperature switching chamber return damper 20. And as shown to the arrow E (refer FIG. 5), it returns to the evaporator 17 via the return ventilation path 19,21. 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 stored product in a frozen state or a refrigerated state at a desired temperature. The room temperature can be switched by changing the amount of opening of the temperature switching chamber discharge damper 13. For example, the heater 15 may be energized to switch the temperature from the freezing room temperature to the refrigerated room temperature. Thereby, it can switch to desired room temperature rapidly.

  Further, by energizing the heater 15, the room temperature of the temperature switching chamber 3 is switched from the low temperature side where the stored items are stored frozen or refrigerated to the high temperature side where the cooked heated food is temporarily kept warm or cooked. Can do. 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 miscellaneous 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 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 preferable that the room temperature on the high temperature side is set to 80 ° C. in consideration of the tolerance of the heater capacity and the temperature distribution in the temperature switching chamber 3.

The following are the test results on the 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 the present embodiment, since the temperature switching chamber 3 that can switch the room temperature between the low temperature side for storing the refrigerated product or the frozen food and the high temperature side for keeping the heated food is provided, it is economical without requiring a separate warmer. Thus, it is possible to provide a highly convenient refrigerator 1 that can reduce the burden on the user and keep the heated food without having to secure a place.

  Next, FIG. 7 is a side sectional view showing a temperature switching chamber of the refrigerator of the second embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. In this embodiment, the surface shape of the storage case cover 37 is formed in a concave-convex shape having a turtle shell shape. Other parts are the same as those in the first embodiment.

  By making the surface shape of the storage case cover 37 uneven, the surface area of the storage case cover 37 increases. Thereby, the inside of the storage case 51 can be brought to a more uniform temperature, and the strength of the storage case cover 37 can be improved. As in the first embodiment, one or both of the back surface of the storage case cover 37 and the wind direction plate 40a may be inclined.

  Next, FIG. 8 is a side sectional view showing the temperature switching chamber of the refrigerator of the third embodiment. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the storage case 51 is made of a metal such as stainless steel or aluminum, and a part of the outer peripheral surface is covered with a grill 39 made of a net-like resin. Other configurations are the same as those of the first embodiment.

  Since metal has a high thermal conductivity, the heat in the temperature switching chamber 3 can be easily transferred into the storage case 51. Further, the user can pull out the storage case 51 while holding the resin grill 39, and the danger of being burned when the user grips the storage case 51 can be prevented.

  Further, the storage case 51 has a metal exposed on the contact surface with the storage case cover 37, and the contact surface of the storage case 51 and the storage case cover 37 has a surface roughness of 0.05S by polishing processing such as electric abrasive polishing. The following mirror surface is finished. As a result, the storage case 51 and the storage case cover 37 are in close contact with each other, and the smell transfer of food to the outside of the storage case 51 can be more reliably prevented.

  The storage case cover 37 may be covered with a grill made of a net-like resin. Moreover, you may incline one or both of the back surface of the storage case cover 37, and the wind direction board 40a similarly to 1st Embodiment. Similarly to the second embodiment, the surface shape of the storage case cover 37 may be an uneven shape.

  In the first to third embodiments, the storage case cover 37 may be formed of resin. Thereby, since the thermal conductivity of the storage case cover 37 is lowered, the effect of making the inside of the storage case 51 uniform is reduced, but it is possible to prevent the stored product from being dried due to direct contact with hot air. . In addition, it is possible to prevent the odor of food from being moved out of the storage case 51.

  In the first to third embodiments, a damper may be provided at the outlet of the vegetable compartment 5. Thereby, when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, it is possible to prevent the hot air from the temperature switching chamber 3 from flowing backward into the vegetable chamber 5 by closing the damper. In addition, when the blower 18 is stopped when the temperature switching chamber 3 is switched from the high temperature side to the low temperature side, the freezer compartment damper 22 is closed. Thereby, it is possible to prevent hot air from flowing backward from the freezer damper 22 into the freezer compartment 6 by driving the blower 14.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the refrigerator provided with the temperature switching chamber which can switch room temperature by the user.

The front view which shows the refrigerator of 1st Embodiment of this invention. The right view which shows the refrigerator of 1st Embodiment of this invention. Sectional drawing on the right side showing the refrigerator according to the first embodiment of the present invention. Cross section of the right side showing the temperature switching chamber of the refrigerator of the first embodiment of the present invention Front sectional drawing which shows the middle step part of the refrigerator of 1st Embodiment of this invention. The cold air circuit diagram which shows the flow of the cold air of the refrigerator of 1st Embodiment of this invention Cross section on the right side showing the temperature switching chamber of the refrigerator of the second embodiment of the present invention Cross section on the right side showing the temperature switching chamber of the refrigerator of the third embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Refrigerator 2 Refrigeration room 3 Temperature switching room 4 Ice making room 5 Vegetable room 6 Freezing room 9 Door 11, 51 Storage case 12 Introduction ventilation path 13 Temperature switching room discharge damper 14, 18, 28 Blower 15 Heater 17 Evaporator 16, 24 Temperature Sensors 19, 21 Return ventilation path 20 Temperature switching chamber return damper 22 Freezing chamber damper 25 Chilled chamber damper 27 Refrigerating chamber damper 30 Thermal fuse 31, 32 Cold air passage 33 Back plate 35 Compressor 37 Storage case cover 39 Grill 40 Grill 40a Wind direction plate

Claims (6)

In a refrigerator equipped with a temperature switching chamber capable of switching the room temperature between a low temperature side for storing stored refrigerated or frozen and a high temperature side for keeping heated food by cooling by a cooling device and heating by a heater,
The heater comprises a heat radiation heater,
The indoor temperature on the high temperature side is 50 ° C. or higher,
A storage case disposed in the temperature switching chamber, and a storage case cover that covers the storage case;
It has a blower that sends cold air or air that has exchanged heat with the heater to the front of the temperature switching chamber along the storage case cover through an inlet provided in the upper back of the temperature switching chamber,
The blower is located upstream of the heater,
At least a part of the back surface of the storage case cover faces the inflow port, the back surface of the storage case is positioned below the inflow port, and the back surface of the storage case cover and the inflow port facing the inflow port A refrigerator characterized in that a flow passage is provided therebetween.   2. The refrigerator according to claim 1, wherein at least a part of a rear surface of the storage case cover facing the inflow port is inclined so that a front side is upward with respect to a horizontal direction.   The refrigerator according to claim 1 or 2, wherein a grill having a wind direction plate for restricting a wind direction is provided at the inflow port, and the wind direction plate is inclined so that a front side is upward with respect to a horizontal direction. .   The refrigerator according to any one of claims 1 to 3, wherein a surface shape of the storage case cover is an uneven shape.   The refrigerator according to any one of claims 1 to 4, wherein the storage case cover is made of metal.   The refrigerator according to claim 5, wherein the storage case is made of a metal whose surface is covered with a resin.

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