JP2012007759A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator that suppresses the temperature fluctuation of a freezing temperature zone compartment, concerning a refrigerator with the freezing temperature zone compartment.SOLUTION: The refrigerator includes the freezing temperature zone compartment which houses foods respectively by being compartmentalized in the refrigerator body, wherein the freezing temperature zone compartment includes a housing space consisting of an ice compartment 3, an upper stage freezing compartment 4 and a lower stage freezing compartment 5, and is provided with a cooling storage unit 110A having a cooling storage member between the ice compartment 3 and the upper freezing compartment 4 located in an upper portion, and the lower stage freezing compartment 5 located in a lower portion. The cooling storage unit 110A is provided in a space of the back of a front face partition 40 of the freezing compartment where foods are not fundamentally housed.

Description

  The present invention relates to a refrigerator provided with a freezing temperature zone.

  As a conventional refrigerator provided with a cold storage member, for example, refrigerators described in Patent Literature 1 and Patent Literature 2 have been proposed. The refrigerator described in Patent Document 1 considers the preservation of fruits and vegetables, and has a cold storage member installed on the inner wall surface and outer wall surface of a food storage case, or the inner wall surface of a vegetable room (inside the cabinet). In the refrigerator described in Patent Document 2, a cold storage member is installed on the bottom surface of a compartment space installed in a freezing temperature zone in consideration of the influence of warm food on other spaces.

JP 2009-192109 A (refer to claim 2, claim 3, FIG. 2, FIG. 10) Japanese Patent Laying-Open No. 2005-226984 (see paragraphs 0032 to 0034 and FIG. 3)

  However, in the refrigerator described in Patent Document 1, the installation location of the cold storage member is a place suitable for preserving the fruits and vegetables in the vegetable compartment with good freshness, and only consideration is given to the refrigerated temperature zone. Also, the freezing temperature zone has a larger temperature difference from the outside of the refrigerator cabinet than the refrigerated temperature zone, and the temperature distribution tends to be biased. If the cold storage member is installed in the refrigeration temperature zone chamber by the technique described in Patent Document 1, the temperature fluctuation of the refrigeration temperature zone chamber cannot be sufficiently suppressed, and there is a problem that the frozen food can be dissolved.

  On the other hand, in the refrigerator described in Patent Document 2, a cold storage member is installed in the storage case of the freezing temperature zone, and when hot food is put in the compartment space in the freezing temperature zone, the heat effect on other spaces by the warm food The purpose is to suppress. However, when a large amount of warm food is put in the compartment space of the freezing temperature zone chamber, there is a problem that the compartment space maintains a high temperature and the entire freezing temperature zone chamber cannot be maintained at an appropriate temperature.

  The present invention has been made in view of the above problems, and relates to a refrigerator provided with a freezing temperature zone chamber, and an object thereof is to provide a refrigerator that suppresses temperature fluctuations in the freezing temperature zone chamber.

  In order to achieve the above object, the invention according to claim 1 of the present invention is provided with a freezing temperature zone chamber that is partitioned in a refrigerator main body and stores food, and the freezing temperature zone chamber includes two or more freezing temperature zone chambers. The gist of the invention is that it has a storage space and a cold storage member is provided outside the storage space in the refrigeration temperature zone. Thereby, it becomes a refrigerator with few temperature fluctuations of a freezing temperature zone room.

  ADVANTAGE OF THE INVENTION According to this invention, it can relate to the refrigerator provided with the freezing temperature zone room, and can provide the refrigerator which suppresses the temperature fluctuation of a freezing temperature zone room. In addition, even when cooling by the cooler is not performed, a refrigerator capable of suppressing temperature fluctuations in the freezing temperature zone by the cold storage member can be obtained.

It is an external appearance front view of the refrigerator which concerns on 6th Embodiment from 1st Embodiment of this invention. It is AA sectional drawing of FIG. 1 which shows the structure in the store | warehouse | chamber of a refrigerator. It is a front view which shows arrangement | positioning etc. of the cold air duct of a refrigerator, and a cold air outlet. It is an enlarged view of the freezing temperature zone room of Drawing 2 showing the composition of the freezing temperature zone room of the refrigerator concerning a 1st embodiment of the present invention. It is BB sectional drawing in FIG. 2 which shows the structure of the freezing temperature zone room of the refrigerator which concerns on 1st Embodiment of this invention. It is sectional drawing (BB direction cross section in FIG. 2) which shows the structure of the cool storage unit of the refrigerator which concerns on 1st Embodiment of this invention. It is sectional drawing (AA direction cross section in FIG. 1) which shows the structure of the cool storage unit of the refrigerator which concerns on 1st Embodiment of this invention. It is BB sectional drawing in FIG. 2 which shows the structure of the freezing temperature zone room of the refrigerator which concerns on 2nd Embodiment of this invention. It is CC sectional drawing of FIG. 1 which shows the structure of the freezing temperature zone room of the refrigerator which concerns on 2nd Embodiment of this invention. It is a cross section which shows the cool storage unit mounted in the refrigerator which concerns on 2nd Embodiment of this invention. (A) is DD sectional drawing of FIG. 10, (b) is EE sectional drawing of FIG. 10, (c) is FF sectional drawing of FIG. It is an enlarged view of the freezing temperature zone room of Drawing 2 showing the composition of the freezing temperature zone room of the refrigerator concerning a 3rd embodiment of the present invention. It is sectional drawing which shows the cool storage unit mounted in 3rd Embodiment of this invention. It is an enlarged view of the freezing temperature zone room of Drawing 2 showing the composition of the freezing temperature zone room of the refrigerator concerning a 4th embodiment of the present invention. It is sectional drawing which shows the cool storage unit mounted in 4th Embodiment of this invention. It is BB sectional drawing of Drawing 2 showing the composition of the freezing temperature zone room of the refrigerator concerning a 5th embodiment of the present invention. It is BB sectional drawing of Drawing 2 showing the composition of the freezing temperature zone room of the refrigerator concerning a 6th embodiment of the present invention. It is BB sectional drawing of FIG. 2 which shows the structure of the freezing temperature zone room of the refrigerator which concerns on 7th Embodiment of this invention.

(First embodiment)
A refrigerator according to an embodiment of the present invention will be described with reference to FIGS. In addition, the refrigerator shown to FIG. 1 thru | or FIG. 3 has illustrated the common structure with the refrigerator which concerns on 1st Embodiment thru | or 6th Embodiment. In addition, the code | symbol 1A is the refrigerator which concerns on 1st implementation type | system | group Chia, and the code | symbol 1F is the refrigerator which concerns on 6th Embodiment.

  As shown in FIG. 1, the refrigerator 1 according to the present embodiment serves as a food storage room from the top, from the refrigerator compartment 2, the ice making room 3 (storage space located on the upper side), and the upper freezing room 4 (storage space located on the upper side). ), A lower freezer compartment 5 (a storage space located on the lower side), and a vegetable compartment 6. Further, the ice making chamber 3 and the upper freezing chamber 4 are arranged on the left and right at the same height position. In the following description, the ice making chamber 3, the upper freezing chamber 4, and the lower freezing chamber 5 are collectively referred to as a freezing temperature zone 60, and the refrigerating chamber 2 and vegetable room 6 are collectively referred to as a refrigerating temperature zone 61. is there.

  The refrigerating room 2 is provided with a left and right refrigerating room doors 2a and 2b divided on the front side, and the ice making room 3, the upper freezing room 4, the lower freezing room 5, and the vegetable room 6 are each a drawer type ice making room. The door 3a, the upper freezer compartment door 4a, the lower freezer compartment door 5a, and the vegetable compartment door 6a are provided. Hereinafter, the refrigerator compartment doors 2a and 2b, the ice making compartment door 3a, the upper freezer compartment door 4a, the lower freezer compartment door 5a, and the vegetable compartment door 6a are simply referred to as doors 2a, 2b, 3a, 4a, 5a, and 6a.

  In the refrigerator 1, the door sensor (not shown) that detects the open / closed state of the doors 2a, 2b, 3a, 4a, 5a, and 6a and the state determined as the door open state are continued for a predetermined time (for example, 1 minute) or more. In this case, an alarm (not shown) for notifying the user, a temperature setting device (not shown) for setting the temperature of the refrigerator compartment 2 and the vegetable compartment 6 and the temperature setting of the freezing temperature zone 60 are provided.

  As shown in FIG. 2, the outside of the refrigerator 1 and the inside of the refrigerator are separated by a heat insulating box 10 (refrigerator body) formed by filling a foam heat insulating material (foamed polyurethane). Further, the heat insulating box 10 of the refrigerator 1 is mounted with a vacuum heat insulating material 25.

  In the refrigerator 1, the refrigerator compartment 2 is separated from the refrigerator compartment 4 by the refrigerator compartment insulating wall 28, the upper freezer compartment 4 and the ice making room 3 (see FIG. 1). The lower freezer compartment 5 and the vegetable compartment 6 are separated.

  A plurality of door pockets 32 are provided on the inner side of the doors 2a and 2b. The refrigerator compartment 2 is partitioned into a plurality of storage spaces in the vertical direction by a plurality of shelves 36.

  The upper freezer compartment 4, the lower freezer compartment 5, and the vegetable compartment 6 are respectively provided with storage containers 4b, 5b, 6b that are pulled out integrally with the doors 4a, 5a, 6a provided at the front of each chamber, The storage containers 4b, 5b, and 6b can be pulled out by placing a hand on a handle portion (not shown) of the doors 4a, 5a, and 6a and pulling it out to the front side. Similarly, the ice making chamber 3 shown in FIG. 1 is provided with an unillustrated storage container (indicated by (3b) in FIG. 2) integrally with the door 3a. The container 3b can be pulled out by pulling it out.

  Also, as shown in FIG. 4, slide rails 71 (see FIG. 4) are provided on the left and right sides of the storage containers 3b, 4b, and 5b to facilitate the pulling out of the storage containers 3b, 4b, and 5b and to support the storage containers 3b, 4b, and 5b. 5) is installed. Although not shown, slide rails are also installed on the left and right sides of the storage container 6b. On the other hand, sliders 72 (see FIG. 5) that are slidably supported by the slide rails 71 are formed on the left and right outer surfaces of the storage containers 3b, 4b, and 5b.

  The upper freezer compartment 4 is configured to be used as a quick freezer compartment. In order to improve the quick freezing performance, the storage container 4b of the upper freezer compartment 4 is provided with an aluminum tray (not shown) so that the freezing speed is improved.

  Returning to FIG. 2, the refrigerator 1 includes a freezer compartment front partition 40 (see FIG. 1) for filling the gaps between the doors 3 a, 4 a, and 5 a and preventing cold air leakage from the freezing temperature zone chamber 60 to the outside air. . The freezer compartment front partition 40 and the doors 3a, 4a, and 5a are adsorbed by magnetic force to improve the sealing degree of the freezing temperature zone 60. A freezer compartment central partition 41 (see FIG. 5) for providing slide rails 71 (see FIG. 5) of the storage containers 3b and 4b is provided between the storage containers 3b and 4b.

  The refrigerator 1 also includes a cooler 7, a cooler storage chamber 8, an internal fan 9, and a warm air storage space 26. The cooler 7 is disposed substantially in the back of the lower freezer compartment 5 and is provided in the cooler storage chamber 8. Air cooled by the heat exchange with the cooler 7 by the internal fan 9 provided above the cooler 7 (cooler cool air, hereinafter referred to as cooler cool air, (Referred to as “cold air”) is sent to the refrigerator compartment 2 through the refrigerator compartment duct 11, and is sent to the upper freezer compartment 4, the lower freezer compartment 5, and the ice making compartment 3 through the freezer compartment duct 12. Air blowing to each room is controlled by opening and closing the refrigerator compartment damper 20 and the freezer compartment damper 50.

  Specifically, when the refrigerator compartment damper 20 is in the open state and the freezer compartment damper 50 is in the closed state, as shown in FIG. 3, the cooler cool air flows from the outlets 2 c provided in multiple stages via the refrigerator compartment duct 11. It is sent to the refrigerator compartment 2. The cooler cool air (cold air) that has finished cooling the refrigerator compartment 2 flows out of the refrigerator compartment return port 2d provided at the lower right side of the back of the refrigerator compartment 2, and is connected to the vegetable compartment via the refrigerator compartment-vegetable compartment communication duct 16. The vegetable compartment 6 is cooled by flowing into the vegetable compartment 6 from the vegetable compartment outlet 6c provided on the upper right side of the back surface of the vegetable compartment 6. The cooler air that has cooled the vegetable compartment 6 passes through the vegetable compartment return duct 18 (see FIG. 2) from the vegetable compartment return port 6d (see FIG. 2) provided in front of the lower portion of the freezer compartment-vegetable compartment insulation partition wall 29. Then, it returns to the cooler 7 from the vegetable room return outlet 18a (see FIG. 3) having a width substantially equal to the width of the cooler 7.

  Further, when the freezer damper 50 is in the open state, the cooler cool air heat-exchanged by the cooler 7 is boosted by the internal fan 9 and passes through the freezer compartment duct 12 from the outlets 3c, 4c, 5c, respectively. 3. Air is sent to the upper freezer compartment 4 and the lower freezer compartment 5. The cooler air that has cooled the freezer compartments 3, 4, and 5 returns to the cooler 7 from the freezer compartment return port 17 (see FIG. 2). In addition, in the refrigerator 1 of this embodiment, although the seven outlets 3c-5c of the freezing temperature zone room 60 are provided in total, it is not limited to this, It can change suitably.

  In the refrigerator 1 of this embodiment, the internal fan 9 is provided above the cooler 7, and the freezer compartment damper 50 is provided above the internal fan 9 (refer FIG. 2). Further, a blower outlet 4 c for sending cooler cool air to the upper freezer compartment 4 positioned above the freezer temperature zone 60 and a blower outlet 3 c for sending cooler cool air to the ice making chamber 3 are provided above the freezer damper 50. .

  A defrost heater 22 is provided below the cooler storage chamber 8 in which the cooler 7 is stored. The defrosting heater 22 is, for example, a glass tube heater, and includes an aluminum radiating fin (not shown) on the outer periphery of the glass tube. Further, an upper cover (not shown) for preventing defrost water from dripping onto the defrost heater 22 is provided above the defrost heater 22.

  As shown in FIG. 4, the warm air storage space 26 is provided in front of the lower part of the cooler storage chamber 8. The warm air storage space 26 is formed along the front wall surface constituting the cooler storage chamber 8, and has a shape in which the lower end portion 26a is opened and the upper end portion 26b is closed. Therefore, the warm air (updraft) generated during the defrosting operation performed by energizing the defrost heater 22 can be prevented from flowing into the refrigeration temperature zone 60 by accumulating in the warm air storage space 26. It is like that.

  In the refrigerator 1 of the present embodiment, the warm air storage space 26, the freezer compartment return port 17, and the front portion (the freezing temperature zone chamber 60 side) of the freezer compartment duct 12 are integrally molded products, and the warm air storage space 26, the back part (freezer compartment 8 side) of each of the freezer compartment return port 17 and the freezer compartment duct 12 is also an integrally molded product. The members constituting the warm air storage space 26, the freezer compartment return port 17, and the freezer compartment duct 12 are hereinafter referred to as a freezer compartment back cover body 70. Moreover, among the freezer compartment back cover body 70, the upper part from the outlet 5c which is the lowest part of the freezer compartment outlet is referred to as a freezer compartment duct forming part 70a, and the lower part from the outlet 5c is referred to as a freezer return part forming part 70b.

  The frost adhering to the wall of the cooler 7 and the surrounding cooler storage chamber 8 is melted during the defrosting operation, and the defrost water generated at that time is provided in the lower portion of the cooler storage chamber 8. 2, reaches the evaporating dish 21 (see FIG. 2) disposed in the machine room 19, which will be described later, via the drain pipe 27, and is disposed in the compressor 24 (see FIG. 2) and the machine room 19. It is evaporated by the heat of a condenser (not shown).

  A cooler temperature sensor 35 attached to the cooler 7 is located at the upper left as viewed from the front of the cooler 7. The temperature of the cooler 7 (hereinafter referred to as the cooler temperature), the temperature of the refrigerator compartment 2 (hereinafter referred to as the refrigerator temperature), and the temperature of the lower freezer compartment 5 (hereinafter referred to as the freezer temperature), respectively. Can be detected). Furthermore, the refrigerator 1 includes an outside temperature sensor (not shown) that detects the temperature outside the refrigerator. The vegetable room temperature sensor 33a is also disposed in the vegetable room 6.

  Incidentally, in this embodiment, isobutane is used as a refrigerant, and the amount of refrigerant filled is about 88 g.

  A control board 31 on which a CPU, a memory such as a ROM and a RAM, an interface circuit, and the like are mounted is disposed on the upper surface of the ceiling wall of the refrigerator 1 (see FIG. 2). The control board 31 includes the outside temperature sensor (not shown), the cooler temperature sensor 35 (see FIG. 2), the refrigerating room temperature sensor 33 (see FIG. 2), the vegetable room temperature sensor 33a (see FIG. 2), and the freezer compartment. A temperature sensor 34 (see FIG. 2), the door sensor for detecting the open / closed state of each door of the doors 2a, 2b, 3a, 4a, 5a, 6a, and a temperature setter (not shown) provided on the inner wall of the refrigerator compartment 2 Etc., and control of ON / OFF of the compressor 24, control of the respective actuators (not shown) for individually driving the refrigerator compartment damper 20 and the freezer compartment damper 50, and storage by a program preinstalled in the ROM Control such as ON / OFF control and rotation speed control of the internal fan 9 and ON / OFF of an alarm for notifying the door open state described above are performed.

  As shown in FIGS. 4 and 5, the refrigerator 1 </ b> A of the first embodiment is between the ice making room 3, the upper freezer room 4, and the lower freezer room 5, and the freezer compartment front partition 40 (see FIG. 4). ) Is provided with a regenerator unit 110A at a location on the back side. The cold storage unit 110A is formed in a plate shape, extends from the left panel 10a to the right panel 10b of the refrigerator 1A (see FIG. 5), and extends from the back of the freezer compartment front partition 40 to the freezer compartment back cover body 70. It extends to the front surface (see FIG. 5). That is, the freezing temperature zone 60 is partitioned by the cold storage unit 110 </ b> A so that cold air (fluid) does not go back and forth between the ice making chamber 3 and the upper freezing chamber 4 and the lower freezing chamber 5.

  As shown in FIGS. 6 and 7, the cold storage unit 110 </ b> A includes a cold storage member 100 in which a cold storage agent 101 is enclosed. The container of the cool storage member 100 that covers the cool storage agent 101 is formed of a resin to prevent corrosion by the cool storage agent 101. The melting point of the cold storage agent 101 of this embodiment is, for example, −15 ° C. When the temperature around the cool storage member 100 is lower than that of the cool storage agent 101, the cool storage agent 101 is cooled by the internal air (cold air). Further, when the temperature around the cool storage member 100 is higher than that of the cool storage agent 101, the cool storage agent 101 cools the air around the cool storage member 100 and is cooled by the cold air (cool storage member cold air, hereinafter referred to as the cool storage member 100. The low temperature air is referred to as “cold storage member cold air”) to cool the freezing temperature zone 60.

  In addition, the shape of the regenerator member 100 is such that, when viewed from the front side, a concave and convex shape is continuously formed in the left and right directions on the upper surface and the lower surface, the convex surface 100a on the upper surface side, and the convex surface 100b on the lower surface side, Are arranged so as to face each other, and the concave surface 100c on the upper surface side and the concave surface 100d on the lower surface side are arranged to face each other. Thus, in order to improve the heat transfer amount between the cool storage agent 101 and the cool storage member cold air, the unevenness is provided and the heat transfer area is expanded.

  The cold storage unit 110 </ b> A includes a cold storage member cover 200 </ b> A that covers the periphery of the cold storage member 100. The cool storage member cover 200 </ b> A is formed to be slightly larger in the horizontal direction than the cool storage member 100. That is, the cold storage member cover 200 </ b> A is formed such that the vertical height is substantially in contact with the cold storage member 100 (see FIGS. 6 and 7), and the horizontal length (width) is slightly larger than the cold storage member 100 width. Widely formed (see FIG. 6), the length in the front-rear direction (depth) is slightly longer than the depth of the cold storage member 100 (see FIG. 7).

  Moreover, the height H1 (see FIG. 7) of the cold storage member cover 200A is formed in the same or substantially the same manner as the height H2 (see FIG. 4) of the freezer compartment front partition 40. That is, the ceiling surface 200c of the cool storage member cover 200A and the upper surface 40a of the freezer compartment front partition 40 are flush with each other, and the bottom surface 200d of the cool storage member cover 200 and the lower surface 40b of the freezer compartment front partition 40 are flush with each other. Is formed. In other words, the ceiling surface 200c of the cool storage member cover 200A is formed so as not to protrude upward from the upper surface 40a of the freezer compartment front partition 40, and the bottom surface 200d of the cool storage member cover 200A is lower than the lower surface of the freezer compartment front partition 40. It is formed so as not to protrude.

  Moreover, the cool storage member cover 200A is provided with a cool storage agent basket 203 on the inner bottom surface thereof. This cool storage agent basket 203 has cool storage agent basket walls 204 a and 204 b in front and rear of the cold storage agent 100. In addition, about the right and left of the cool storage member 100, the left side surface 200a and the right side surface 200b of the cool storage member cover 200A itself function as a cool storage agent wall. Therefore, on the lower side of the regenerator member 100, a reed (reservoir) formed in a concave shape by the regenerator agent reed walls 204a and 204b, the left side surface 200a and the right side surface 200b is configured.

  The cool storage member cover 200A is formed with cool storage member cover inlets 201a and 201b through which the cool storage member cooling air flows into the bottom surface 200d and the ceiling surface 200c behind the cool storage agent wall 204b. Further, the cool storage member cover 200A is formed with cool storage member cover outlets 202a and 202b through which cool storage member cool air flows out on the bottom surface 200d and the ceiling surface 200c in front of the cool storage agent wall 204a.

  Since the ice making chamber 3 and the upper freezing chamber 4 are smaller in volume than the lower freezing chamber 5 and less air is circulated, the opening area of the cold storage member cover inlet 201b and the cold storage member cover outlet 202b is reduced. However, it is formed smaller than the opening area of the cool storage member cover inlet 201a and the cool storage member cover outlet 202a.

  In addition, when the height dimension of the regenerator wall 204a is h2 and the height dimension of the regenerator wall 204b is h1, the regenerator cover on the cool storage member cover inlets 201a and 201b side into which the cool storage member cool air flows. The wall 204b is set to be lower than the regenerator wall 204a. The cold storage member cover 200A is formed of a resin having low heat transfer performance.

  Further, inside the cool storage member cover 200A, a cool storage member for circulating cool air in the cool storage member separately from the internal fan 9 between the cool storage agent wall 204a and the cool storage member cover outlets 202a and 202b. A fan 102 is provided.

  In the refrigerator 1A of the first embodiment, the cool storage member fan 102 is brought close to the cool storage member 100 to form one unit. However, if the cool storage member fan 102 can blow air around the cool storage member 100, the cool storage member fan 102 is cooled. The member fan 102 may be installed at any position in the freezing temperature zone chamber 60 or the freezing chamber duct 12.

  By operating the cold storage member fan 102, the inflow and outflow of air can be performed between the air in the cold storage unit 110A (cold storage member cover 200A) and the refrigeration temperature zone chamber 60. Specifically, cold air in the refrigeration temperature zone chamber 60 flows into the cold storage unit 110A from the cold storage member cover inlets 201a and 201b, and cold air flows out from the cold storage member cover outlets 202a and 202b into the refrigeration temperature zone chamber 60.

  More specifically, the air in the lower freezing chamber 5 flows into the cold storage unit 110A from the cold storage member cover inlet 201a, and the air in the upper freezing chamber 4 and the ice making chamber 3 into the cold storage unit 110A from the cold storage member cover inlet 201b. Flows in. Then, it passes through the air passage S formed by the concave surfaces 100c and 100d of the cold storage member 100 and the cold storage member cover 200A, and enters the lower freezing chamber 5 from the cold storage member cover outlet 202a or the upper stage freezing from the cold storage member cover outlet 202b. Air flows into the chamber 4 and the ice making chamber 3.

  Although the structure of the refrigerator 1A according to the first embodiment has been described above, the effects achieved by the refrigerator 1 according to the first embodiment will be described below.

  By the way, many household refrigerators having a plurality of food storage spaces above and below the freezing temperature zone 60 have a large storage volume in the lower food storage space, and cool the food in the lower freezing chamber 5. The amount of cooling required for maintaining the low temperature is larger than that of the other chambers (the ice making chamber 3 and the upper freezing chamber 4). According to the refrigerator 1A of the first embodiment, the cold storage unit 110A (cool storage member 100) is placed above the lower freezer compartment 5, that is, the ice making chamber 3 and the upper freezer compartment 4 (the storage space located on the upper side), and the lower freezer compartment 5 By disposing it between (the storage space located on the lower side), the cool storage member cold air is directed to the lower freezer compartment 5 by natural convection, and the lower freezer compartment 5 can be cooled effectively. Therefore, it is possible to suppress temperature fluctuations in the freezing temperature zone chamber 60 by effectively cooling the lower freezing chamber 5 that requires a large amount of cooling.

  Moreover, according to the refrigerator 1A of 1st Embodiment, the cool storage member 100 is provided in the location used as the back surface of the freezer compartment front partition 40 between the ice-making room 3, the upper stage freezer compartment 4, and the lower stage freezer compartment 5. Thus, it is possible to suppress a decrease in the storage volume (actually, the volume of the space in which food can be stored) by the cold storage member 100. That is, when the door 5a is opened and food is stored in the storage container 5b up to the height of the freezer compartment front partition 40, the food compartment comes into contact with the freezer compartment front partition 40 when the door 5a is closed, and the door 5a cannot be closed. . Therefore, the back surface of the freezer compartment front partition 40 is a space where food cannot be stored. Therefore, the cold storage member 100 is provided by providing the cold storage member 100 at the location (the location between the ice making chamber 3 and the upper freezing chamber 4 and the lower freezing chamber 5 and the back of the freezer compartment front partition 40). The cold storage member 100 can be installed without reducing the storage volume as compared with a refrigerator that is not provided, and the refrigerator has high space efficiency.

  Moreover, according to the refrigerator 1A of 1st Embodiment, by providing the cool storage member 100 in the said location, it uses as a partition between the ice-making room 3, and the upper stage freezing room 4 and the lower stage freezing room 5 (between upper and lower rooms). Therefore, when the freezing temperature zone 60 is cooled by the cooler 7, it is possible to suppress the convection of cool air between the upper and lower chambers without newly using a partition. Incidentally, when there is no partition between the upper and lower chambers, the cold air in the ice making chamber 3 and the upper freezing chamber 4 is directed to the lower freezing chamber 5 by natural convection. However, by providing the cold storage member 100 at the above location, it is possible to suppress the convection of the cold air between the upper and lower chambers, to suppress the temperature fluctuations of the ice making chamber 3 and the upper freezing chamber 4, It becomes a refrigerator that can be suppressed.

  In addition, according to the refrigerator 1A of the first embodiment, by providing the cold storage member fan 102 for circulating the cold storage member cold air separately from the internal fan 9, the temperature fluctuation of the freezing temperature zone chamber 60 is suppressed. It becomes a refrigerator that can. The reason is as follows.

  That is, in the refrigerator 1 </ b> A, the refrigeration temperature zone chamber 60 needs to be cooled by the cold storage member 100 when the refrigeration temperature zone chamber 60 cannot be circulated mainly by the internal fan 9. One of the cases where cooling by the regenerator member 100 is required is when the cooler 7 is defrosted. In order to defrost the cooler 7, when the defrost heater 22 is energized, the air temperature in the cooler storage chamber 8 rises. For this reason, in order to prevent the temperature in the freezing temperature zone chamber 60 from rising without causing the air in the cooler storage chamber 8 to flow into the freezing temperature zone chamber 60, it is necessary to perform cooling by the cold storage member 100 without using the internal fan 9. There is.

  Further, when the cooling by the cold storage member 100 is necessary, there is a time when the temperature of the freezing temperature zone 60 is increased after the doors 3a, 4a, 5a are opened and closed. In this case, a method of cooling with both the cooler 7 and the cold storage member 100 and a method of cooling with only the cold storage member 100 are conceivable. In the former case, since cooler cool air is blown, cold air circulation in the freezing temperature zone chamber 60 by the internal fan 9 is possible. However, in the latter case, the cold air circulation by the internal fan 9 is difficult. Here, the latter situation will be described. If the cooling load of the refrigerator 1A is low before the doors 3a, 4a and 5a are opened and closed, the compressor 24 is temporarily stopped for energy saving and the air temperature in the cooler storage chamber 8 is raised. There is time to be. In the meantime, even if the air temperature in the refrigeration temperature zone chamber 60 suddenly increases due to the opening and closing of the door, the compressor 24 is first operated to lower the air temperature in the cooler storage chamber 8 and then the cooler cool air is cooled to the freezing temperature. It is necessary to blow air to the belt chamber 60. Therefore, when the refrigeration temperature zone chamber 60 is to be cooled while the air temperature in the cooler housing chamber 8 is being lowered, it is necessary to cool the regenerator member 100 without using the internal fan 9.

  Further, in the refrigerator 1A having the freezer damper 50 as in the first embodiment, when it is necessary to perform cooling by the cold storage member 100, the freezer damper 50 is closed and a cooler is used to cool the refrigeration temperature zone 61. There are times when you are blowing cool air. At this time, since cooler cool air does not enter the freezing temperature zone chamber 60, cooling by the cold storage member 100 is necessary to suppress the temperature rise of the freezing temperature zone chamber 60, but the freezing chamber damper 50 is closed. Therefore, the internal fan 9 cannot be used when cooling by the cold storage member 100 is performed.

  However, during the cooling by the cold storage member 100, the cold air circulation in the freezing temperature zone chamber 60 is effective. Generally, the amount of heat transfer between a gas and a liquid or between a gas and a solid is determined by the temperature difference between the gas and the liquid or between the gas and the solid, the heat transfer coefficient, and the heat transfer area. Therefore, if the cold air in the freezing temperature zone 60 is not circulated, the heat transfer rate is constant, and the heat transfer area is constant, the amount of heat transfer between the internal air and the cold storage member 100 is the internal air and the cold storage member 100. It is determined by the temperature difference. Therefore, in order to improve the heat transfer amount, it is necessary to improve the heat transfer coefficient by forced convection.

  Therefore, as in the first embodiment, it is effective to provide the cold storage member fan 102 separately from the internal fan 9. By attaching the cold storage member fan 102, it is possible to adjust the amount of heat transfer between the cold storage member 100 and the internal air even when the cold air circulation of the freezing temperature zone 60 by the internal fan 9 cannot be performed as described above. By adjusting the amount of heat transfer, it is possible to suppress temperature fluctuations in the freezing temperature zone 60.

  In addition, when there is no cool air circulation fan other than the internal fan 9, the internal fan 9 is used for blowing air to a temperature zone room other than the freezing temperature zone chamber 60, or the internal fan 9 is stopped. Due to natural convection, a temperature difference occurs in the air in the refrigerator temperature zone chamber 60. At this time, as in the first embodiment, the cold storage member fan 102 is used as a dedicated fan for the refrigeration temperature zone chamber 60, whereby the cold air in the refrigeration temperature zone chamber 60 can be circulated. It is possible to make the temperature distribution in the inside uniform and to suppress temperature fluctuations throughout the freezing temperature zone chamber 60.

  Further, in the refrigerator 1 having a plurality of storage spaces (the ice making chamber 3, the upper freezing chamber 4, and the lower freezing chamber 5) in the freezing temperature zone chamber 60 as in the first embodiment, each storage space is provided by the cold storage member fan 102. Cold storage member cold air can be distributed. In particular, in the case of the refrigerator 1A of the first embodiment, in order to cool the storage space installed above the cool storage member 100 by the cool storage member 100 without a fan, like the ice making chamber 3 and the upper freezing chamber 4, the basics Specifically, the cooling is performed not by natural convection but by heat conduction. In that case, it is difficult to sufficiently cool the ice making chamber 3 and the upper freezing chamber 4. However, since the cool storage member fan 102 can be sent to the upper space by installing the cool storage member fan 102 as in the first embodiment, the ice making chamber 3 and the upper freezing chamber 4 are cooled by the cool storage member 100. Thus, temperature fluctuations throughout the freezing temperature zone chamber 60 can be suppressed.

  Moreover, according to 1st Embodiment, even when only the cool storage member 100 with a small heat-transfer area can be installed by restrictions, such as installation space and cost, it is high by raising a heat transfer rate by providing the cool storage member fan 102. The amount of heat transfer can be obtained.

  Moreover, since the cool storage agent 101 becomes liquid at a temperature equal to or higher than the melting point, when the cool storage member 100 is damaged, the cool storage agent 101 may flow out, and the cool storage agent 101 and food may come into contact with each other. Therefore, in the refrigerator 1A of the first embodiment, the cold storage agent basket 203 is provided on the cold storage member cover 200A, so that the cold storage agent basket 203 flows out of the cold storage member 100 even if the cold storage agent 101 flows out of the cold storage member 100. Thus, the cold storage agent 101 is collected, and contact between the cold storage agent 101 and the food can be prevented. Thereby, it becomes the reliable refrigerator 1A. Incidentally, the cool storage agent 101 collected in the cool storage agent basket 203 can be used without any trouble for cooling even after flowing out of the cool storage member 100 and collecting in the cool storage agent basket 203.

  In addition, since the cooler cool air flowing in the freezing temperature zone chamber 60 is usually dry air, even if frost adheres to the cool storage unit 110A, it evaporates over time. Although there is little possibility of accumulating, frost may temporarily accumulate in the regenerator bowl 203 due to the flow of air with high absolute humidity such as opening and closing of the door. Therefore, when the cool storage agent 101 flows in a state where frost is accumulated in the cool storage agent basket 203, it may not be stored in the cool storage agent basket 203. However, if the heights h1 and h2 (see FIG. 7) from the bottom surface 200d of the regenerator wall 204a, 204b are increased too much in order to increase the capacity of the regenerator wall 203, the air passage in the regenerator unit 110A is blocked. become. Therefore, the cool storage member cover inlet 201 a also functions as an outlet for the cool storage agent 101. When the cool storage agent 101 cannot be stored in the cool storage agent basket 203, it is discharged from the cool storage member cover inlet 201a to the outside of the cool storage unit 110A, so that the cold storage agent 101 does not touch the food in the storage container 5b. It can be discharged outside the chamber 60. In order to ensure that the cool storage agent 101 can be discharged from the cool storage member cover inlet 201a, the cool storage agent cover wall 204b on the cool storage member cover inlet 201a side of the cool storage agent cover wall 204a, 204b is replaced with another wall including the cool storage agent cover wall 204a. (See FIG. 7).

  Thereby, even if the cool storage agent 101 that cannot be received by the cool storage agent basket 203 flows out of the cool storage unit 110A from the cool storage member cover inflow port 201a, the space between the storage container 5b and the freezer compartment back cover body 70 is thereafter changed. Through the freezer return port 17, the refrigerant flows into the basket 23 provided at the lower portion of the cooler storage chamber 8, and accumulates in the evaporating dish 21 disposed in the machine room 19 through the drain pipe 27. Therefore, even when the cool storage agent 101 flows out from the cool storage member 100 and the cool storage agent 101 cannot be stored in the cool storage agent basket 203, the contact between the cool storage agent 101 and the food can be reliably prevented. Thereby, it becomes a reliable refrigerator.

  In the refrigerator 1 of the first embodiment, the cool storage member cover 200 </ b> A also serves as a blower air path to the cool storage member 100 by the cool storage member fan 102. Like the refrigerator 1 of 1st Embodiment, when the unevenness | corrugation is provided in the surface of the cool storage member 100, since the resistance around the cool storage member 100 is large and it is difficult for air to flow, unless the cool storage member cover 200A is provided, The flow rate of air flowing around the cold storage member 100 is reduced. Therefore, as in the first embodiment, the cool storage member cover 200 </ b> A forms an air path that blows air from the cool storage member fan 102 to the cool storage member 100, so that air passes through the vicinity (near) of the cool storage member 100 and the cool storage member 100. The amount of heat exchange of the internal air can be increased. Therefore, it is possible to sufficiently cool the refrigeration temperature zone chamber 60, and to suppress temperature fluctuations in the refrigeration temperature zone chamber 60.

(Second embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1B of the second embodiment will be described with reference to FIGS. In addition, about the structure same as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. 8 is a cross-sectional view taken along the line BB in FIG. 2 showing the configuration of the freezing temperature zone of the refrigerator according to the second embodiment of the present invention, and FIG. 9 is the freezing temperature zone of the refrigerator according to the second embodiment of the present invention. CC sectional view of FIG. 1 showing the configuration, FIG. 10 is a sectional view showing a cold storage unit mounted in the refrigerator according to the second embodiment, FIG. 11A is a DD sectional view of FIG. ) Is a cross-sectional view taken along line EE in FIG. 10, and (c) is a cross-sectional view taken along line FF in FIG. 10.

  As shown in FIGS. 8 and 9, in the refrigerator 1 </ b> B of the second embodiment, the cold storage unit 110 </ b> B is between the ice making chamber 3 and the upper freezer compartment 4, and is the back of the freezer compartment front partition 40 (FIG. 9). Reference), and is configured to be installed at a location on the upper surface side of the freezer central partition 41.

  As shown in FIG. 10, the cold storage unit 110B includes a cold storage member 100 and a cold storage member fan 102 in the cold storage member cover 200B. In addition, the cool storage member cover 200B is formed with a partition plate 200f having a communication portion 200e formed on the upper portion thereof and extending upward from the bottom surface in the cool storage member cover 200B at the rear of the cool storage member 100. Further, the cold storage member cover 200B is formed with a partition plate 200h having a communication portion 200g formed in the lower portion in front of the cold storage member 100 and extending downward from the ceiling surface in the cold storage member cover 200B.

  As shown in FIG. 11A, the cold storage member 100 has a concavo-convex shape continuously formed in the vertical direction (vertical direction) on both left and right side surfaces. The convex surface 100a of the cool storage member 100 abuts on the inner wall surface of the cool storage member cover 200B, and the space formed by the concave surface 100c and the cool storage member cover 200B is configured as an air passage S through which the cool storage member cool air flows.

  As shown in FIG. 11 (b), cool storage member cover inlets 201c and 201d into which the cool storage member cool air flows in are formed on the left and right side surfaces of the rear lower portion of the cool storage member cover 200B. Moreover, as shown in FIG.11 (c), the cool storage member cover outflow ports 202c and 202d from which cool storage member cold air flows out are formed in the right-and-left both sides of the front upper part of the cool storage member cover 200B. In addition, the opening area of the cool storage member cover inlet 201c and the cool storage member cover outlet 202c facing the upper freezing chamber 4 is larger than the opening area of the cool storage member cover inlet 201d and the cool storage member cover outlet 202d facing the ice making chamber 3. Is also formed large.

  By operating the cool storage member fan 102, the cool storage member cold air flows into the cool storage member cover 200B via the cool storage member cover inlets 201c and 201d, and the air passages of the communication portion 200e and the cool storage member 100 (as in the first embodiment). The air flows out of the cool storage member cover 200B through the similar air passage S) and the communication portion 200e.

  By the way, many household refrigerators having a plurality of food storage spaces above and below the freezing temperature zone 60 have a large storage volume in the lower food storage space, and cool the food in the lower freezing chamber 5. The amount of cooling required for maintaining the low temperature is larger than that of the other chambers (the ice making chamber 3 and the upper freezing chamber 4). According to the refrigerator 1B of the second embodiment, the cold storage unit 110B (cold storage member 100) is disposed above the lower freezing room 5, that is, between the ice making room 3 and the upper freezing room 4, so that the cold storage member is formed by natural convection. The cold air is directed to the lower freezer compartment 5, and the lower freezer compartment 5 can be cooled effectively. Therefore, it is possible to suppress temperature fluctuations in the freezing temperature zone chamber 60 by effectively cooling the lower freezing chamber 5 that requires a large amount of cooling.

  Further, by providing a cold storage unit 100B (cool storage member 100) in the place (between the ice making chamber 3 and the upper freezing chamber 4), similarly to the refrigerator 1A of the first embodiment, the storage volume (in practice) The volume of the space in which food can be stored can be prevented from decreasing. The back surface of the freezer compartment front partition 40 is a space where food cannot be stored because the freezer compartment front partition 40 and the food product cannot be taken out when the door is opened and closed. By providing the cold storage member 100 on the back surface of the freezer compartment front partition 40, the cold storage member 100 can be installed without reducing the storage volume compared to a refrigerator without the cold storage member 100, resulting in a space efficient refrigerator. .

  Further, by providing a cold storage unit 110B (cool storage member 100) in the place (between the ice making chamber 3 and the upper freezing chamber 4), it can be used as a partition between the ice making chamber 3 and the upper freezing chamber 4, When the refrigeration temperature zone chamber 60 is cooled by the cooler 7, it becomes possible to suppress the convection of the cold air between the left and right chambers without newly using a partition. In the refrigerator 1B in which the roles of the left and right rooms are different, such as the ice making room 3 and the upper freezing room 4, the amount of cooling required for each role is different. Since the object stored in the ice making chamber 3 is ice, it can play the role of the ice making chamber 3 if it can be kept below the freezing point. Cold air is required. Therefore, when there is no partition between the left and right chambers, the cold air is exchanged between the left and right chambers, and unnecessary cooling is performed in order to cool the other chambers even in a chamber that requires a small amount of cooling. However, by providing a cold storage unit 110B (cool storage member 100) at the location (between the ice making chamber 3 and the upper freezing chamber 4), convection of cold air between the left and right chambers is suppressed, and the ice making chamber 3 and the upper freezing chamber 4, respectively. It becomes possible to give only the cooling amount necessary for cooling the refrigerator, and the refrigerator 1B can be operated more efficiently.

  Moreover, according to the refrigerator 1B of 2nd Embodiment, the cold storage member fan 102 for circulating cold storage member cold air is provided separately from the internal fan 9, similarly to the refrigerator 1A of 1st Embodiment. In order to cool the storage spaces installed on the left and right sides of the cold storage member 100 by the cold storage member 100 without a fan like the ice making chamber 3 and the upper freezing chamber 4, the cooling is basically performed by heat conduction instead of natural convection. However, in that case, it is difficult to sufficiently cool the ice making chamber 3 and the upper freezing chamber 4. Then, since it becomes possible to send cool storage member cold air to the space of the left-right direction by installing the cool storage member fan 102, the ice making room 3 and the upper freezer compartment 4 can be cooled effectively with the cool storage member 100, Temperature fluctuations throughout the freezing temperature zone chamber 60 can be suppressed.

(Third embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1C of the third embodiment will be described with reference to FIGS. 12 and 13. In addition, about the structure same as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. 12 is an enlarged view of the refrigeration temperature zone chamber of FIG. 1 showing the configuration of the refrigeration temperature zone chamber of the refrigerator of the third embodiment, and FIG. 13 is a cross-sectional view showing a cold storage unit mounted in the third embodiment of the present invention. .

  As shown in FIG. 12, the refrigerator 1C of the third embodiment includes a cold storage unit 110C (cool storage member 100) between the freezer compartment back cover body 70 and the storage container 5b.

  As shown in FIG. 13, the cold storage unit 110 </ b> C includes a cold storage member 100 and a cold storage member fan 102 inside a cold storage member cover 200 </ b> C. The cool storage member 100 has an air passage S through which cool air of the cool storage member flows.

  The cool storage member cover 200C has a shape that is flat in the front-rear direction and formed long in the left-right direction, and is formed with a cool storage member cover inlet 201e into which cool air stored in the cool storage member circulates in the lower part of the front surface. A cold storage member cover outlet 202e through which the member cold air flows out is formed. In addition, the cool storage agent cover 203C in which the cool storage agent leaked from the cool storage member 100 is stored is formed in the bottom part of the cool storage member cover 200C.

  According to the refrigerator 1C of the third embodiment, the temperature of the freezing temperature zone 60 is provided by installing the cold storage unit 110C (cold storage member 100) at the above-described location (between the freezer compartment back cover body 70 and the storage container 5b). The fluctuation can be suppressed. The reason is as follows.

  When the air near the cooler 7 temporarily rises when the compressor 24 (see FIG. 2) is stopped or the defrost heater 22 (see FIG. 2) is energized, the freezing temperature zone is It is conceivable that heat flows into the chamber 60. Since the cold storage unit 110C (cold storage member 100) absorbs the heat by installing the cold storage unit 110C (cold storage member 100) in the location (between the freezer compartment back cover body 70 and the storage container 5b), the freezing temperature It becomes possible to suppress the temperature rise of the belt chamber 60. In particular, from the freezer compartment return port 17, not only inflow of heat into the freezing temperature zone 60 due to heat conduction but also inflow of air itself heated by the heater can be considered. The effect which suppresses the temperature rise of the freezing temperature zone room 60 by attaching to the part 70b is acquired. In the third embodiment, the cold storage unit 110C (cold storage member 100) is provided between the freezer compartment back cover body 70 and the storage container 5b, but cold storage is performed inside the freezer compartment back cover body 70, that is, in the warm air storage space 26. Even if the unit 110C (cold storage member 100) is installed, the same effect can be obtained.

  In addition, it is desirable to reduce the space between the freezer compartment back cover body 70 and the storage container 5b in order to increase the storage volume. However, the space between the freezer compartment back cover body 70 and the storage container 5b is stored by the warm air storage space 26 when the cooler storage room 8 is warmed and the heat inflow from the cooler storage room 8 into the storage container 5b. It plays the role of the heat insulation layer which suppresses the temperature rise of the container 5b. Therefore, according to the third embodiment, by installing the cold storage unit 110C (cool storage member 100) at the location (between the freezer compartment back cover body 70 and the storage container 5b), as described above, the freezing temperature zone chamber Since the temperature rise of 60 can be suppressed, the cold storage unit 110C (cold storage member 100) can be installed without reducing the storage volume (actually, the volume of the space in which food can be stored). It becomes a high refrigerator 1C.

  By the way, although the back side (cooler 7 side) of the lower freezing chamber 5 is cooled even without the cold air circulation by the cold storage member fan 102, the cold storage unit 110C (cold storage member) like the ice making chamber 3 and the upper freezing chamber 4 is cooled. It is difficult to cool the storage space installed above 100) with the cold storage unit 110C (cool storage member 100) only by natural convection. Therefore, according to the refrigerator 1C of the third embodiment, the cold storage member by installing the cold storage member fan 102 for circulating the cold storage member cold air separately from the internal fan 9 as in the refrigerator 1A of the first embodiment. Since the cold air can be sent to the upper space, the ice making chamber 3 and the upper freezing chamber 4 can be cooled by the cold storage member 100, and temperature fluctuations in the entire freezing temperature zone chamber 60 can be suppressed. .

(Fourth embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1D of the fourth embodiment will be described with reference to FIGS. 14 and 15. In addition, about the component same as 3rd Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. FIG. 14 is an enlarged view of the refrigeration temperature zone chamber of FIG. 1 showing the configuration of the refrigeration temperature zone chamber of the refrigerator of the fourth embodiment, and FIG. 15 is a cross-sectional view showing a cold storage unit mounted in the fourth embodiment of the present invention. .

  As shown in FIG. 14, the refrigerator 1 </ b> D of the fourth embodiment includes a cold storage unit 110 </ b> D (cool storage member 100) in the freezer compartment duct 12 in the freezer compartment back cover body 70.

  As shown in FIG. 15, the cool storage unit 110D includes a cool storage member 100 and a cool storage member fan 102 inside a cool storage member cover 200D. The cool storage member 100 has an air passage S through which cool air of the cool storage member flows.

  The cool storage member cover 200D has a shape that is flat in the front-rear direction and formed long in the left-right direction, and is formed with a cool storage member cover inlet 201e into which the cool storage member cool air that circulates in the lower part of the front surface flows. A cold storage member cover outlet 202e through which the member cold air flows out is formed. A cold storage agent basket 203a in which the cold storage agent leaking from the cold storage member 100 is stored is formed at the bottom of the cold storage member cover 200D.

  According to refrigerator 1D of 4th Embodiment, it can cool-store efficiently by installing cold storage unit 110D (cold storage member 100) in the said location (inside freezer compartment duct 12). The reason is as follows.

  When the regenerator member 100 is in the freezer compartment duct 12, when the regenerator unit 110 </ b> D cools the air with the cooler cool air, the air around the regenerator member 100 is cooler cool air before cooling the freezing temperature zone chamber 60. The temperature difference with the cool storage member 100 can be sufficiently large with low temperature air. In the freezer compartment duct 12, a lot of cold air flows when the internal fan 9 is operated, and the heat transfer coefficient becomes sufficiently large. Therefore, by installing the cold storage member 100 in the freezer compartment duct 12, a high amount of exchange heat can be obtained, and the cold storage member 100 can be efficiently stored.

  Furthermore, since the cold storage member 10 is in the freezer compartment duct 12, a refrigerator with high energy saving performance can be obtained even when food is excessively contained in the storage container. In the case where the cold storage unit 110D is in the freezing temperature zone chamber 60, when the user packs food in the storage container excessively, the air flow in the freezing temperature zone chamber 60 changes due to the air path resistance due to the stored food, and the inside of the refrigerator When the fan 9 is in operation, there is a case where sufficient cool air does not reach the periphery of the cold storage unit 110D and the cold storage becomes insufficient. In this case, for sufficient cold storage, it is necessary to operate the cold storage member fan 102 simultaneously with the operation of the internal fan 9 and send sufficient cold air to the cold storage unit 110D. In this case, since not only the internal fan 9 but also the cold storage member fan 102 is operated for cold storage, the fan power increases. On the other hand, in the refrigerator 1D of the fourth embodiment, the cold storage member 100 is disposed in the freezer compartment duct 12. A large amount of cold air flows through the freezer compartment duct 12 when the internal fan 9 is operated, and it is difficult to be affected by the state of food in the storage container. However, cold storage can be basically performed only by operating the internal fan 9. Therefore, it becomes a refrigerator with high energy saving as much as the cold storage member fan 102 is not operated.

  By the way, when there is no cool air forced circulation by the cool storage member fan 102, the cool storage member cool air is moved from the outlet 5c below the cool storage unit 110D to the lower freezer compartment 5 by natural convection and the outlets 3c and 4c at the top. The air warmed in the refrigeration temperature zone chamber 60 flows in. Therefore, although the lower freezer compartment 5 can be cooled, it is difficult to cool the ice making chamber 3 and the upper freezer compartment 4. Therefore, according to the refrigerator 1D of the fourth embodiment, as with the refrigerator 1A of the first embodiment, a cold storage member is provided by installing the cold storage member fan 102 for circulating the cold storage member cold air separately from the internal fan 9. It becomes possible to send cold air to the upper space. Therefore, when it is desired to cool the ice making chamber 3 and the upper freezer compartment 4, the cold storage member fan 102 is operated, and the cold air outlet 5c is used as a cold air return air passage from the freezing temperature zone chamber 60 to store cold from the cold air outlets 3c and 4c. The member cold air can be sent to the ice making chamber 3 and the upper freezing chamber 4 to be cooled. Thereby, it becomes possible to suppress the temperature fluctuation of the whole freezing temperature zone room 60.

(Fifth embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1E according to the fifth embodiment will be described with reference to FIG. In addition, about the component same as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. FIG. 16 is a cross-sectional view taken along the line BB in FIG. 2 illustrating the configuration of the freezing temperature zone of the refrigerator according to the fifth embodiment.

  As shown in FIG. 16, in the refrigerator 1 </ b> E of the fifth embodiment, the cold storage unit 110 </ b> E (cool storage member 100) is installed on the upper wall surface of the refrigeration temperature zone 60 (refrigeration chamber—inner surface of the freezer compartment heat insulation partition wall 28). Yes. Although not shown, the cold storage unit 110E includes the cold storage member 100 and the cold storage member fan 102 in the cold storage member cover 200A, as in the first embodiment, and the cold storage member cover inlet of the cold storage member cover 200A. 201a, 201b and cool storage member cover outlets 202a, 202b.

  According to the refrigerator 1E of the fifth embodiment, since the cold storage unit 110E (cool storage member 100) is installed at the location (upper wall surface of the freezing temperature zone chamber 60), the cold storage member 100 is positioned above the freezing temperature zone chamber 60. Therefore, the cold storage member cold air can cool the entire region of the freezing temperature zone 60 by natural convection. As a result, it is possible to suppress temperature fluctuations throughout the freezing temperature zone chamber 60.

  Further, according to the refrigerator 1E of the fifth embodiment, by installing the cold storage unit 110E (cool storage member 100) at the location (upper wall surface of the freezing temperature zone 60), the refrigerator compartment is opened and closed by opening and closing the doors 2a and 2b. 2, and the heat inflow into the refrigeration temperature zone chamber 60 increases, the cold storage member 100 (cold storage agent 101) having a high heat capacity absorbs the heat, so the temperature of the refrigeration temperature zone chamber 60. It becomes possible to suppress fluctuations.

  Moreover, the refrigerator 1E of 5th Embodiment is provided with the cool storage member fan 102 for circulating the cool storage member cold air separately from the internal fan 9, similarly to the refrigerator 1A of the first embodiment. Incidentally, although the cold storage unit 110E (cold storage member 100) is installed in the location (the upper wall surface of the freezing temperature zone 60), when the cold storage member fan 102 is not provided, It is necessary to adjust the outlets 3c and 4c of the freezer compartment duct 12 so as to cool the cool storage member 100 or to blow cooler cool air to the cool storage member 100. However, in the former method, it takes a long time to cool the regenerator member 100, and in the latter method, the outlets 3c and 4c are adjusted so that cooler cool air is blown to the refrigerator compartment-freezer compartment insulation partition wall 28. Therefore, there is a possibility that the refrigerator compartment 2 is excessively cooled. Therefore, according to the refrigerator 1E of the fifth embodiment, by providing the cool storage member fan 102, the cool air in the refrigerator can be taken into the cool storage unit 110E as needed, and the cooler cool air can be blown to the cool storage member 100. . Therefore, the cold storage member 100 is easy to store cold.

(Sixth embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1F of the sixth embodiment will be described with reference to FIG. In addition, about the component same as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. FIG. 17 is a cross-sectional view taken along the line BB of FIG. 2 showing the configuration of the freezing temperature zone of the refrigerator according to the sixth embodiment of the present invention.

  As shown in FIG. 17, in the refrigerator 1F of 6th Embodiment, between the storage container 5b of the lower wall surface of the freezing temperature zone room 60, and the freezer compartment-vegetable room heat insulation partition wall 29, the cool storage unit 110F (cool storage member 100). Is installed. By installing the cold storage member 100 at the location (between the storage container 5b and the freezer compartment-vegetable room heat insulation partition wall 29), the temperature of the vegetable room 6 rises due to opening and closing of the door 6a, etc. When the heat inflow increases, the cold storage agent 101 having a high heat capacity absorbs the heat, so that it is possible to suppress the temperature fluctuation of the freezing temperature zone 60.

  Moreover, the refrigerator 1F of 6th Embodiment is provided with the cool storage member fan 102 for circulating the cool storage member cold air separately from the internal fan 9 similarly to the refrigerator 1A of the first embodiment. When the cold storage unit 110F (cold storage member 100) is installed on the lower wall surface (bottom wall surface) of the freezing temperature zone 60, cooling by the cold storage member 100 other than food near the cold storage member 100 is difficult only by natural convection, but the cold storage member 100 In addition, by installing the cold storage member fan 102, the air in the refrigeration temperature zone chamber 60 circulates and the entire refrigeration temperature zone chamber 60 can be cooled by the cold storage member 100. Variation can be suppressed.

(Seventh embodiment)
Next, the configuration of the cold storage member 100 of the refrigerator 1G of the seventh embodiment will be described with reference to FIG. In addition, about the component same as 1st Embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted. The effects common to other embodiments are also omitted. 18 is a cross-sectional view taken along the line BB of FIG. 2 showing the configuration of the freezing temperature zone of the refrigerator according to the seventh embodiment of the present invention.

  As shown in FIG. 18, in the refrigerator 1 </ b> G of the seventh embodiment, the cold storage units 110 </ b> G (cold storage members 100) are installed on the left and right wall surfaces of the freezing temperature zone chamber 60, avoiding the slide rails 71. The cold storage unit 110G is not limited to the configuration provided in the entire gap between the left and right wall surfaces, and can be appropriately selected and applied.

  By the way, in the refrigerator 1G provided with the slide rails 71 on the left and right wall surfaces, when considering to put food on the top and bottom of the slide rails 71, the storage containers 3b, 4b, 5b have complicated shapes that avoid the slide rails 71, Food storage becomes difficult. Therefore, in many refrigerators, the upper and lower sides of the slide rail 71 are spaces in which food cannot be stored. Therefore, according to the refrigerator 1G of the seventh embodiment, by installing the cold storage unit 110G (cold storage member 100) above and below the slide rail 71 at the location, the refrigerator without the cold storage unit 110G (cold storage member 100) is installed. The cold storage member 100 can be installed without reducing the storage volume (actually, the volume of the space in which food can be stored), resulting in a refrigerator with high space efficiency.

  Further, according to the refrigerator 1G of the seventh embodiment, similarly to the sixth embodiment, when the cold storage unit 110G (cool storage member 100) is installed on the left and right wall surfaces of the freezing temperature zone 60, the vicinity of the cold storage member 100 only by natural convection. Cooling by the regenerator member 100 is difficult except for other foods, but by installing the regenerator member fan 102 together with the regenerator member 100, the air in the refrigeration temperature zone chamber 60 circulates, and the entire refrigerating temperature zone chamber 60 is cooled. It becomes possible to cool by this, and the temperature fluctuation of the whole freezing temperature zone room 60 can be suppressed.

  In addition, this invention is not limited to above-described embodiment, For example, you may install a cool storage unit (cold storage member) between the freezer compartment back cover body 70 and the storage containers 3b and 4b. Further, any one of the first embodiment to the seventh embodiment may be selected and combined.

1 (1A-1F) Refrigerator 2 Refrigeration room 3 Ice making room 3a Ice making room door 3b Storage container (storage space)
4 Upper freezer 4a Upper freezer door 4b Storage container (storage space)
5 Lower freezer compartment 5a Lower freezer compartment door 5b Storage container (storage space)
5c Outlet 6 Vegetable room 7 Cooler 8 Cooler storage room 9 Fan in the cabinet 10 Heat insulation box (refrigerator body)
DESCRIPTION OF SYMBOLS 11 Refrigeration room duct 12 Freezing room duct 13 Cold air | gap aggregation duct 16 Refrigeration room-vegetable room communication duct 17 Freezing room return port 18 Vegetable room return duct 18a Vegetable room return outlet 19 Machine room 20 Refrigeration room damper 21 Evaporating dish 22 Defrost heater 23 ２４ 24 Compressor 26 Warm air storage space 27 Drain pipe 28 Refrigeration room-freezer compartment insulation partition wall 29 Freezer compartment-vegetable room insulation partition wall 31 Control board 33 Refrigeration compartment temperature sensor 33a Vegetable compartment temperature sensor 34 Freezer compartment temperature sensor 35 Cooling Temperature sensor 40 Freezer front partition 41 Freezer central partition 50 Freezer damper 53 Top cover 60 Freezing temperature zone 61 Refrigerating temperature zone 70 Freezer back cover body 70a Freezing chamber duct forming part 70b Freezing room return opening forming part 71 Slide rail 72 Slider 100 Cold storage member 101 Cold storage agent 102 Cold storage member fan 110A to 110F Cold storage unit 200A to 200C Cold storage member cover 201a, 201b Cold storage member cover inlet 202a, 202b Cold storage member cover outlet 203, 203a Cold storage agent wall 204a, 204b Cold storage agent wall S Air path

Claims (12)

It is provided with a freezing temperature zone that is compartmented in the refrigerator body and stores food,
The refrigerator temperature zone chamber has two or more storage spaces, and a cold storage member is provided outside the storage space in the refrigerator temperature zone chamber. The storage space is arranged up and down,
The refrigerator according to claim 1, wherein the cold storage member is provided between the storage space located on the upper side and the storage space located on the lower side. The storage space is arranged on the left and right,
The refrigerator according to claim 1, wherein the cold storage member is provided between the storage space located on the left side of the freezing temperature zone and the storage space located on the right side. A freezer compartment back cover body disposed on the back of the freezer temperature zone;
The refrigerator according to claim 1, wherein the cold storage member is provided in the freezer compartment back cover body. The freezer compartment back cover body has a freezer compartment return port forming part that forms a freezer compartment return port for discharging cold air from the freezing temperature zone chamber,
The refrigerator according to claim 4, wherein the cold storage member is provided in the freezer compartment return opening forming portion. The freezer compartment back cover body has a freezer compartment duct forming part that forms a freezer compartment duct for introducing cold air into the freezing temperature zone chamber,
The refrigerator according to claim 4, wherein the cold storage member is provided in the freezer compartment duct forming portion. A freezer compartment back cover body that has a warm air storage space that is disposed on the back of the freezer temperature zone chamber and stores warm air generated during the defrosting operation in the freezer temperature zone chamber;
The refrigerator according to claim 1, wherein the cold storage member is provided in the freezer compartment back cover body.   A cooler in which cold air that cools the freezing temperature zone chamber is heat-exchanged, a cooler housing chamber that houses the cooler, and an interior that blows the cold air heat-exchanged by the cooler to the freezing temperature zone chamber A refrigerator according to any one of claims 1 to 7, further comprising a fan, wherein a cold storage member fan that blows air to the cold storage member is provided in the freezing temperature zone. A cooler that heat-exchanges cold air that cools the freezing temperature zone chamber, a cooler housing chamber that houses the cooler, and an interior that blows the cold air heat-exchanged by the cooler to the freezing temperature zone chamber And a fan,
The refrigerator according to claim 1, wherein a cold storage member is provided on an upper wall surface of the freezing temperature zone chamber, and a cold storage member fan that blows air to the cold storage member is provided in the freezing temperature zone chamber. A cooler in which cold air that cools the freezing temperature zone chamber is heat-exchanged, a cooler housing chamber that houses the cooler, and an interior that blows the cold air heat-exchanged by the cooler to the freezing temperature zone chamber And a fan,
The refrigerator according to claim 1, wherein a cold storage member is provided on a lower wall surface of the freezing temperature zone chamber, and a cold storage member fan that blows air to the cold storage member is provided in the freezing temperature zone chamber. A cooler in which cold air that cools the freezing temperature zone chamber is heat-exchanged, a cooler housing chamber that houses the cooler, and an interior that blows the cold air heat-exchanged by the cooler to the freezing temperature zone chamber And a fan,
The cold storage member and the cold storage member fan which ventilates the cold storage member in the freezing temperature zone room are provided in at least one of the left and right wall surfaces of the freezing temperature zone chamber. refrigerator.   The refrigerator according to any one of claims 1 to 11, wherein a cold storage member cover that houses the cold storage member is provided.

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