WO2015019686A1

WO2015019686A1 - Refrigeration storage unit

Info

Publication number: WO2015019686A1
Application number: PCT/JP2014/064080
Authority: WO
Inventors: 俊一山部; 宮崎　大輔
Original assignee: シャープ株式会社
Priority date: 2013-08-05
Filing date: 2014-05-28
Publication date: 2015-02-12
Also published as: CN204006896U; JP2015031475A; PH12016500135A1

Abstract

In order to provide a direct-cooling refrigeration storage unit that efficiently cools objects within the unit in the event that a cooling device stops, this refrigeration storage unit (Rf) is equipped with a cooler (410), which is arranged in the upper part of the interior of a storage compartment (Ty), and a cold storage member (6), which is arranged below the cooler (410) with an air layer therebetween. The cold storage member (6) is arranged so as to cover all or a portion of the lower surface of the cooler (410).

Description

Refrigerator

The present invention relates to a refrigerator, and more particularly, to a direct cooling type refrigerator that directly cools internal air with a cooler.

The cooler includes a heat-insulating housing, a door that is also heat-insulating and attached to the housing so as to be openable and closable, and a cooling device that cools an internal space surrounded by the housing and the door. I have. And the said cooling device cools the said interior space, and articles | goods, such as a foodstuff and a chemical | medical agent accommodated in the said interior space, are cryopreserved. Many of the refrigerators employ a cooling device using a refrigeration cycle. The cooling device cools the air in the internal space of the refrigerator by using heat transfer during the phase change (pressure change) of the refrigerant.

The cooling device is a device that cools the internal space with electric power, and when the power supply is stopped due to a power failure or the like, the cooler cannot cool the internal space and it is difficult to maintain a low temperature. In order to suppress such an increase in temperature of the internal space due to the stop of the power supply, there has been proposed one in which a cold storage member capable of accumulating cold energy in the internal space is arranged (for example, JP-A-2006-64314, (See JP 2013-76495 A).

In the cool box of JP-A-2006-64314, the cooling part of the cooling device is arranged in the upper part of the internal space of the cooler, and the air in the cool box is cooled by touching the cooling part (note that The cooled air is called cold air). In other words, the cold storage is a so-called direct cooling type refrigerator in which the internal space is directly cooled by the cooling unit. Then, cold air flows downward, and on the contrary, the air whose temperature has risen rises to generate convection of the air in the internal space.

And in the said cool box, the cooling part is arrange | positioned at the upper part in internal space. And the said cooling part is arrange | positioned so that the piping through which a low-temperature refrigerant | coolant circulates may be attached, and a some plate-shaped cool storage material is attached so that piping may contact. And it attaches so that the main surface of a plate-shaped cool storage material may become perpendicular | vertical or substantially perpendicular | vertical. By attaching the regenerator material in this way, cold energy is stored in the regenerator material by the refrigerant flowing through the pipes, and the cool accumulator material does not interfere with the downward flow of the cold air, so that natural convection of the cold air is likely to occur.

The refrigerator disclosed in JP 2013-76495 is provided with a plurality of cooling chambers and cooling means for cooling the cooling chambers. The refrigerator is a cold-cooled refrigerator that uses a fan or the like to forcibly circulate the cold air generated by the cooling means to the plurality of cooling chambers. In the meantime, in the cold-type refrigerator, the cooling air can be forcibly sent to the cooling chamber, so there is no need to arrange the cooling means in the cooling chamber, and the cooling means is arranged in a portion not directly facing the cooling chamber. Often. By arranging in this way, it is possible to suppress the flow of water (drain water) generated when the frost attached to the cooling means is melted into the cooling chamber.

In this way, in the intercooled refrigerator, the fan is stopped when the power supply is stopped. When the cold storage material is disposed in contact with the cooling means, it is difficult to circulate the cold air cooled by the cold storage material. Therefore, in the intercooling type refrigerator, the regenerator material is arranged inside the cooling chamber. And the articles | goods arrange | positioned inside the cooling chamber are cooled with the cool air which generate | occur | produces with a cool storage material.

JP 2006-64314 A JP 2013-76495 A

However, in the case of the cool box described in Japanese Patent Application Laid-Open No. 2006-64314, since the cool air flow is not disturbed, there is a limit to the size of the cool storage material, and it is difficult to improve the effect of the cool storage by the cool storage material. Further, cold air may be generated on the entire surface of the cooler, and the generated cold air may flow downward, so that convection is less likely to occur and the speed of cooling the article may be deteriorated.

Further, in the case of the refrigerator described in Japanese Patent Application Laid-Open No. 2013-76495, a device for circulating cold air is necessary and the structure is complicated. In addition, if the power supply is stopped and forced cold air cannot be circulated, it becomes difficult to circulate the cold air cooled by the cold storage material. In such a refrigerator, when trying to maintain the temperature of the internal article using the cold storage material, it is necessary to arrange many cold storage materials so that the cold air generated by the cold storage material reaches each cooling chamber. is there. And by arrange | positioning many cool storage materials, the volume of a cooling chamber becomes small so much.

Therefore, the present invention has been made in order to solve the above-described problems, and is capable of efficiently cooling internal articles while preparing for a temperature change caused by stopping the cooling device and / or opening and closing the door. The object is to provide a cold refrigerator.

In order to achieve the above object, the present invention provides a storage chamber surrounded by a heat insulator, a cooler disposed in an upper portion of the storage chamber and cooling the interior of the storage chamber, and the cooling with an air layer interposed therebetween. A cool storage member disposed below the cooler, wherein the cool storage member covers a part or all of the lower surface of the cooler.

According to this configuration, most of the air (generated cold air) cooled by the cooler contacts the cool storage member and flows downward. At that time, since the cool air cools the cool storage member, the cool air whose temperature is too low is cooled. It can suppress flowing into the storage room storage part directly under the vessel, and can suppress overcooling and drying in the storage room.

In addition, by configuring a part that does not cover a part of the lower surface of the cooler, a part of the cool air generated in the cooler can be directly flowed down into the storage chamber (without contacting the cool storage member). It is possible to adjust the cooling rate of the storage chamber by adjusting the temperature of the cold air flowing toward the storage chamber. Moreover, the temperature distribution inside the storage chamber can be adjusted by adjusting the temperature of the cold air flowing down.

In the refrigerator according to the present invention, the cold storage member covers a lower part of the lower side of the storage chamber on the lower surface of the cooler, and a gap is formed between the end portion and the inner surface of the storage chamber. It may be arranged.

In the refrigerator according to the present invention, the cold storage member may be detachably attached to an attachment portion provided in the cooler.

In the refrigerator according to the present invention, the upper surface of the cold storage member may be inclined so that the back side of the storage chamber is down.

In the refrigerator according to the present invention, the lower surface of the cold storage member may be inclined such that the front side of the storage chamber is on the upper side.

In the refrigerator according to the present invention, a plurality of the cold storage members may be attached below the cooler.

The refrigerator according to the present invention may include a storage container disposed with a space below the cool storage member, and the cooler and the cool storage member may be disposed within a projected area of the storage container. .

In the refrigerator according to the present invention, the upper end portion of the storage chamber may include a freezing chamber for storing articles in a frozen state, and the cooler may include a lower wall body of the freezing chamber. .

According to the present invention, it is possible to provide a direct-cooling type refrigerator that can efficiently cool an internal article while preparing for a temperature change caused by stopping a cooling device and / or opening and closing a door.

It is a perspective view of an example of the refrigerator concerning this invention. It is a front view of the refrigerator shown in FIG. FIG. 3 is a cross-sectional view of the refrigerator shown in FIG. 2 cut along line III-III. It is a figure which shows schematic arrangement | positioning of a cooling device. It is a front view of the freezer compartment concerning the present invention. It is a bottom view of the freezer compartment shown in FIG. FIG. 6 is a cross-sectional view of the freezer compartment shown in FIG. 5 taken along line VII-VII. It is a schematic sectional drawing which shows the flow of the air of the store room of the refrigerator concerning this invention. It is the front view to which the freezer compartment of the other examples of the refrigerator concerning this invention was expanded. FIG. 10 is a cross-sectional view of the freezer compartment shown in FIG. 9 taken along line XX. It is the front view to which the freezer compartment of the other examples of the refrigerator concerning this invention was expanded. FIG. 12 is a cross-sectional view of the refrigerator shown in FIG. 11 taken along line XII-XII. It is the front view to which the freezing room of the further another example of the refrigerator concerning this invention was expanded. It is sectional drawing which cut | disconnected the refrigerator shown in FIG. 13 by the XIV-XIV line. It is the front view which expanded the cool storage member of the further another example of the refrigerator concerning this invention. It is sectional drawing which expanded the cold storage member of the further another example of the refrigerator concerning this invention. It is a top view of the storage container used for the further another example of the refrigerator concerning this invention.

The present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 is a perspective view of an example of a refrigerator according to the present invention, FIG. 2 is a front view of the refrigerator shown in FIG. 1, and FIG. 3 is a cross-sectional view of the refrigerator shown in FIG. FIG. Note that the refrigerator Rf according to the present invention is used in the state shown in FIG. 1, and in the following description, in the case of describing up and down, left and right, front and back (back), the state of FIG. 1 is used as a reference. Suppose that

As shown in FIGS. 1 to 3, the refrigerator Rf includes a housing 1 that is a heat insulating box, a door 2 that is attached to the front surface of the housing 1 so as to be opened and closed, and a cooling device 3. The housing 1 is provided with a concave portion whose front side is open. In addition, the part enclosed by this recessed shape part and the door 2 is the storage chamber Ty for preserving food, a medicine, etc. at low temperature.

The door 2 is attached to the front surface of the housing 1 so as to block the concave portion. The door 2 is a hinge door and is pivotally attached to the housing 1 by a hinge 20. When the door 2 is rotated, the front surface of the housing 1 and the door 2 are in contact with each other to close the concave portion. Further, a packing Pk is attached to the door 2, and when the packing Pk comes into contact with the casing 1, a contact portion between the casing 1 and the door 2 becomes airtight, and the storage chamber Ty is sealed.

The casing 1 is a space between the outer box 11 and the inner box 12 by combining a metal outer box 11, an inner box 12 serving as an inner wall of each inner space, and the outer box 11 and the inner box 12. And a heat insulator 13 filled in the container.

The outer box 11 is formed by bending a metal plate (for example, a steel plate) into a box. The outer box 11 has a box shape whose front side is open. The inner box 12 is attached to the opening of the outer box 11 and has a so-called dome shape when viewed from the outside. Since the inner box 12 mainly includes a wall that surrounds a space for storing food, the inner box 12 is manufactured by vacuum molding of a resin such as ABS, PP, or PS.

The heat insulator 13 is a heat insulating member that suppresses the movement of heat between the outside and the inside of the housing 1 and also serves as a strength member for maintaining the structural strength of the housing 1. The heat insulator 13 is made of polyurethane foam. In addition to the polyurethane foam, it is also possible to employ a foamed styrene resin, a foamed phenol resin, a foamed urea resin, or the like. The heat insulator 13 is formed by injecting a raw solution of foam heat insulating material into a space formed when the outer box 11 and the inner box 12 are combined to form a box, and filling the inside of the space with foam. .

For the molding of the heat insulator 13 (foamed polyurethane), a stock solution in which cyclopentane is added as a foaming agent to a mixed solution of polyol and isocyanate is used. The heat insulator 13 is formed by injecting this stock solution into the space between the outer box 11 and the inner box 12 to cause a foaming reaction (dehydration reaction). Although not described in detail, the door 2 similarly has a structure in which a heat insulator is disposed between an inner box and an outer box of a box that combines an inner box and an outer box. In the refrigerator Rf, the housing 1 and the door 2 have the above-described configuration, so that the storage room Ty is surrounded by the heat insulator 13 and the entry of heat from the outside is suppressed.

Moreover, the housing | casing 1 is equipped with the machine room 14 by which a part of cooling device 3 is arrange | positioned at the lower part of the rear surface. Here, the cooling device will be described with reference to the drawings. FIG. 4 is a diagram showing a schematic arrangement of the cooling device. As shown in FIG. 4, the cooling device 3 includes a compressor 31, a wall condenser 32, a dryer 33, a capillary tube 34, and an evaporator 35. And the cooling device 3 is cyclically connected in this order, and comprises the refrigerating cycle which enclosed the refrigerant | coolant inside.

The cooling device 3 will be further described. The cooling device 3 is a heat pump for taking out cold heat by changing the phase of the enclosed refrigerant between gas and liquid. In the cooling device 3, the gaseous refrigerant is compressed by the compressor 3 and sent to the wall condenser 32 in the state of a high-temperature and high-pressure gas refrigerant (gas). The wall condenser 32 is disposed in a space between the outer wall 11 and the inner wall 12 of the wall surface (rear surface, left and right side surfaces, upper surface) of the housing 1, releases the heat of the refrigerant to the outside, and converts the refrigerant from gas to liquid. It is a device that changes (condenses).

Then, the refrigerant cools the storage chamber Ty by releasing the heat of the storage chamber Ty of the refrigerator Rf to the outside, and the heat released from the wall condenser 32 is not easily transmitted to the storage chamber Ty and is released to the outside. It is preferred that Therefore, the wall condenser 32 is disposed in the vicinity of the outer wall 11. Thereby, since the heat insulator 13 is disposed between the wall condenser 32 and the storage chamber Ty, when the heat of the refrigerant is released to the outside, it is possible to suppress the transmission to the inside of the storage chamber Ty. It has become.

The refrigerant condensed by the wall condenser 32 is sent to the dryer 33. The dryer 33 separates water, foreign matter, and the like mixed in the refrigerant from the refrigerant. The refrigerant passes through the dryer 33 and is then sent to the capillary tube 34. The capillary tube 34 is a narrow tube having a smaller inner diameter than the pipe through which the refrigerant has flowed so far, and is a restrictor for reducing the flow rate of the refrigerant. The refrigerant flows out from the outlet of the capillary tube 34 and is sent to the evaporator 35. The decompressed refrigerant rapidly expands and absorbs the amount of heat around it by absorbing the heat of vaporization.

The refrigerant is easy to vaporize because it is decompressed, and vaporizes inside the evaporator 35. When the refrigerant evaporates, it cools the evaporator 35 and further cools the air in contact with the evaporator 35 (the cooled air is called cold air). Then, the cool air circulates (convects) inside the storage chamber Ty, thereby cooling the articles disposed inside and inside the storage chamber Ty. Note that the refrigerant has energy (cooling energy) for cooling the article, and it can be considered that the article is cooled by passing the cooling energy to the article.

In the cooling device 3, the compressor 31 and the wall condenser 32 are devices that release heat to the outside, and the evaporator 35 is a device that cools the storage chamber Ty. Further, the compressor 31 requires a device for supplying power. Therefore, as shown in FIG. 1, the compressor 31 is disposed inside the machine room 14.

The refrigerator Rf is a direct cooling type refrigerator that directly cools the air inside the storage chamber Ty by the evaporator 35 and generates cold air. In the direct-cooling type refrigerator, the evaporator 35 is disposed above the storage chamber Ty. As a result, the cold air generated around the evaporator 35 moves downward, absorbs external heat as it moves downward, and the hot air moves upward due to the moved cold air. The refrigerator Rf generates a flow (convection) of such naturally occurring air (cold air) and circulates the cold air. This naturally generated air convection allows the cool air to cool the interior of the storage chamber Ty to every corner.

Next, the inside of the storage chamber Ty of the refrigerator Rf will be described with reference to the drawings. As shown in FIG. 1 to FIG. 3, the inside of the storage room Ty of the refrigerator Rf is in the freezer compartment 4, the cold storage member 6 provided in the lower part of the freezer room 4, and the lower part of the freezer room 4 (cool storage member 6). There are provided

shelves

71 and 72 arranged, and a storage box 8 arranged at the lowest level. The door 2 has a basket-

like door pocket

21, 22, 23 for storing eggs, bottles, cans and the like on the surface on the storage chamber Ty side. In addition, although the door pockets 21, 22, and 23 are three, it is not limited to this.

In the freezer compartment 4, according to the freezing temperature (for example, refrigeration performance (JIS C 9607) stipulated by JIS), one star is -6 degrees Celsius, two star is -12 degrees Celsius, three star is Celsius -18 degrees or less). The freezer compartment 4 includes a main body portion 41 having an opening on the front surface, and a cover 42 provided on the front surface side of the main body portion 41. The cover 42 includes a window portion 421 for taking in and out the article, and includes a door portion 43 that is rotatably attached to the cover 42 and opens and closes the window portion 421.

The freezer compartment 4 will be described in more detail with reference to a new drawing. 5 is a front view of the freezer compartment according to the present invention, FIG. 6 is a bottom view of the freezer compartment shown in FIG. 5, and FIG. 7 is a cross-sectional view of the freezer compartment shown in FIG. 5 cut along the line VII-VII. is there. As shown in FIGS. 5 and 6, the main body 41 of the freezer compartment 4 has walls on the top and bottom and on the left and right as viewed from the front side of the refrigerator Rf. The main body 41 is made of metal. As shown in FIGS. 5 to 7, the freezer compartment 4 includes the evaporator 35 in the lower wall body 410 of the main body 41. . The refrigerant atomized by the capillary tube 34 is vaporized in the evaporator 35 to cool the wall 410. That is, the wall 410 including the evaporator 35 functions as a cooler.

In the refrigerator Rf, the main body 41 is made of metal and has high thermal conductivity, and therefore, the lower wall body 410 (cooler) is cooled, so that it is continuous with the wall body 410 (cooler) of the main body 41. The wall bodies (left and right, upper and rear wall bodies) formed in this way are also cooled. Since the refrigerant flows into the evaporator 35 to cool the upper, lower, left and right wall bodies of the main body 41, the contact area between the air inside the freezer compartment 4 and the cooled wall body is large, and the internal air The cooling efficiency of is increased. At this time, by setting the air (cold air) heat-exchanged with the refrigerant to a temperature at which the article can be frozen (for example, a temperature of −18 degrees Celsius or less), the article stored in the freezer compartment 4 is frozen or frozen. Can be maintained.

The cover 42 and the door 43 provided on the front side of the freezer compartment 4 are made of resin. As described above, since the resin has a lower thermal conductivity than the metal, it is difficult to lower the temperature. Therefore, even when the user puts in / out the article, even if the user touches the cover 42 and / or the door 43 with his / her hand, the touched portion is less likely to feel uncomfortable or painful.

As shown in FIGS. 5 and 6, in the freezer compartment 4, the lower wall body 410 of the main body 41 includes the evaporator 35. However, the present invention is not limited to this. The structure which the body 410 and refrigerant | coolant piping contact may be sufficient. For example, the configuration may be such that the refrigerant pipe is fixed to the wall body of the main body 41 using a joining means such as brazing, or may be configured to be sandwiched between the sheet metal main bodies 41.

And as shown in FIG. 3 etc., the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4 comes into contact with the space (air) inside the storage compartment Ty. By driving the cooling device 3, the air in the space other than the inside of the freezer compartment 4 of the storage compartment Ty is also cooled. As described above, in order to cool the main body portion 41 of the freezer compartment 4 by circulating the refrigerant through the evaporator 35, the lower wall 410 and the evaporator 35 facing the lower portion of the storage chamber Ty are provided in the storage chamber. It acts as a cooler that cools the lower part of Ty.

Furthermore, the storage room Ty is disposed below the freezer room 4 (cold storage member 6) and includes

shelves

71 and 72 for placing articles. The

shelves

71 and 72 are plate-like members, and are supported by convex portions 121 that protrude inward from the left and right side walls of the inner box 12. In addition, the

shelves

71 and 72 may be fixed to the convex part 121, or the convex part 121 may be configured to extend toward the back, and at least one of the

shelves

71 and 72 may be slidably supported. Further, the convex portions 121 may be provided at a plurality of positions (heights) of the inner box 12 so that the shelf 71 and / or the shelf 72 can be replaced. Thereby, it is possible to adjust the shelf 71 and the shelf 72 according to the height of the article to be placed.

A storage box 8 is provided at the bottom of the storage room Ty. The storage box 8 is for storing articles that are not stable, such as vegetables and fruits, and are difficult to store on the

shelves

71 and 72. In addition to these, the storage box 8 has a height and thickness, and has a shape and a size capable of storing articles that cannot be stored in the door pockets 21, 22, and 23.

As shown in FIG. 2, in the refrigerator Rf, the rear side of the storage box body 8 is a wall body that is inclined toward the front toward the lower side, and a compressor 31 or the like is located behind the wall body. A machine room 14 to be stored is formed.

Next, details of the cold storage member 6 will be described with reference to the drawings. As shown in FIG. 5 to FIG. 7 and the like, the cold storage member 6 is slidably supported by a mounting rail 44 attached to the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4. . The cold storage member 6 is a plate material having a rectangular shape in plan view. As shown in FIG. 5 and FIG. 7, the planar area (horizontal projection area) of the cold storage member 6 is larger than that of the evaporator 35, and the cold storage member 6 has a lower wall 410 (cooler) in plan view (in the vertical direction). ) Is formed so as to cover the lower part. And there exists a part arrange | positioned so that the wall 410 (cooler) and the cool storage member 6 may not overlap in a perpendicular direction. In the refrigerator Rf, a portion where the peripheral portion of the wall body 410 (cooler) does not overlap with the cold storage member 6 is formed.

The cold storage member 6 includes, for example, a latent heat storage material that stores latent heat due to a phase change (liquid / solid phase change) as cold energy. As a latent heat cool storage material, the gel which added the gelatinizer to the aqueous solution containing ethylene glycol or the aqueous solution containing ethylene glycol can be mentioned, for example. In addition, as freezing start temperature of a latent-heat cool storage material, temperature higher than -6 degreeC can be mentioned, for example. This -6 degrees Celsius is a one-star temperature according to Japanese Industrial Standard C 9607 (JIS C 9607).

The cold storage member 6 has a configuration in which the above-described aqueous solution or gel is sealed in a hollow container formed in a rectangular plate shape and sealed. The latent heat storage material expands in volume by cooling. The cold storage member 6 is slidably supported on the mounting rail 44. Therefore, it is preferable that the shape of the cold storage member 6 does not change due to the expansion of the latent heat cold storage material.

Therefore, the cold storage member 6 of the refrigerator Rf has a structure in which a hollow container that is not easily deformed is filled with a clearance for the latent heat cold storage material to expand and sealed. Thereby, even if the latent-heat cool storage material of the cool storage member 6 expand | swells, the change of the external shape of a container can be suppressed. In addition, when the support by the attachment rail 44 can be performed exactly, it is also possible to use the material which has the softness | flexibility which deform | transforms according to expansion | swelling of a latent heat cool storage material to a container.

As shown in FIGS. 5 and 7, the mounting rail 44 is a member that is in contact with the left, right, rear, and lower surfaces of the cold storage member 6, and is provided on the lower wall body 410 (cooler) of the freezer compartment 4. It is arranged on the left and right. The attachment rail 44 is disposed so as to have a mirror image relationship with the center line of the wall body 410 (cooler) interposed therebetween as viewed from below.

The mounting rail 44 includes a holding portion 441, a restriction portion 442 connected to one end portion of the holding portion 441, a guide portion 443 connected to the other end portion of the holding portion 441, a restriction portion 442 and a guide portion. 443 of the holding | maintenance part 441 of 443, and the fixing | fixed part 444 connected with the edge part on the opposite side. In the refrigerator Rf, the mounting rail 44 is formed by bending a metal plate. That is, the holding portion 441, the restriction portion 442, the guide portion 443, and the fixing portion 444 are integrally formed. However, the present invention is not limited to this, and some or all of them may be independent members and assembled.

The holding part 441 has a trapezoidal flat plate shape when viewed from below, and holds the bottom surface of the cold storage member 6. The holding portion 441 is arranged to be parallel to the lower wall body 410 (cooler) of the main body portion 41 of the freezer compartment 4.

The holding portion 441 is a long member, and a regulating portion 442 is connected to the oblique side of one end portion. The restriction portion 442 is a rectangular plate-like member, and is a member that restricts movement of the cold storage member 6 toward the rear surface side. The restricting portion 442 is perpendicular to the holding portion 441.

Also, a guide portion 443 is connected to the hypotenuse of the other end portion of the holding portion 441. The guide portion 443 is a rectangular plate-like member, and is arranged along the sliding direction of the cool storage member 6 (here, the front-rear direction of the refrigerator Rf), and the cool storage member 6 is attached to the mounting rail 44. When used as a sliding guide for the cold storage member 6. Moreover, after attaching the cool storage member 6 to the attachment rail 44, it is utilized also as a control member which controls the movement of the left-right direction.

The fixing portion 444 is connected so that the end of the regulating portion 442 and the guide portion 443 opposite to the holding portion 441 is parallel to the holding portion 441. The fixing portion 444 is fixed to the lower wall body 410 (cooler) of the main body portion 41 of the freezer compartment 4. This fixing can be performed by screwing, fitting, or the like, and here, it is fixed by a screw. In addition, when the mounting rail 44 formed of metal contacts the wall body 410 (cooler), the mounting rail 44 is also cooled in the same manner as the wall body 410 (cooler), and cools the surrounding air. In some cases, such cooling is unnecessary. In this case, the thermal resistance between the fixed portion 444 and the wall body 410 (cooler) may be increased (a member having a high thermal resistance is disposed). .

The pair of mounting rails 44 are arranged so as to form a mirror image with a center line dividing the wall 410 (cooler) left and right. And the guide part 443 of each of a pair of attachment rail 44 is parallel. Then, the left and right ends of the cold storage member 6 (a pair of rectangular short sides in FIG. 7) are brought into contact with the guide portion 443, and the long side of the cold storage member 6 is slid until it comes into contact with the regulating portion 442. Thereby, the cool storage member 6 can be positioned in an appropriate position with respect to the wall body 410 (cooler).

When the cool storage member 6 is attached to the mounting rail 44, the rear end of the cool storage member 6 is in contact with the restricting portion 442, and the left and right end portions are in contact with the guide portion 443. In addition, when the holding | maintenance part 441 is seen from the lower side, while connecting either the right or left side of the cool storage member 6 and a back side, the shape which can hold | maintain the cool storage member 6 firmly with the holding part 441 of a pair of attachment rail 44 And having a size.

Further, as shown in FIGS. 5 and 6, the length L1 in the vertical direction of the restricting portion 442 and the guide portion 443 of the mounting rail 44 is larger than the width W1 of the cold storage member 6. Therefore, when the cold storage member 6 is held by the mounting rail 44, a space Va (air layer) is formed between the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4 and the cold storage member 6. .

Next, the refrigerator Ty with the cold storage member 6 attached to the attachment rail 44 will be described. FIG. 8 is a schematic cross-sectional view showing the air flow in the storage room of the refrigerator according to the present invention. FIG. 8 shows a cross section of the storage chamber according to the present invention as seen from the side. A gap is formed between the rear end of the

shelves

71 and 72 and the rear surface of the storage chamber Ty and between the front end of the

shelves

71 and 72 and the door 2. Air flows through the gap.

In the refrigerator Rf, the storage chamber Ty is covered with the door 2 at the front, so that outside air easily flows in by opening and closing the door 2, and external heat enters from the contact portion (packing Pk) between the cabinet 1 and the door 2. It's easy to do. That is, in the storage room Ty, the front is likely to be hotter than the rear. Therefore, when the cooling device 3 is driven in the refrigerator Rf, high-temperature air flows to the front side of the storage chamber Ty, and low-temperature air flows to the rear side. Thereby, an air flow rising to the front side of the storage chamber Ty is likely to be generated, and an air flow falling to the rear side is likely to be generated.

In the cooler Rf, the cooling device 3 operates and heat exchange is performed by the evaporator 35, whereby the air around the main body 41 of the cooling chamber 4 is cooled and cold air is generated. At this time, the air in the space Va between the lower wall body 410 (cooler) of the main body 41 and the cold storage member 6 is also cooled by the wall body 410 (cooler), and cold air is generated. The cold air generated on the lower surface of the wall body 410 (cooler) flows downward because it has a low temperature. And since the cool storage member 6 is arrange | positioned under the wall 410 (cooler), cold air contacts the cool storage member 6. FIG. The cold air in contact with the cold storage member 6 flows toward the end of the cold storage member 6 while taking heat (latent heat) from the latent heat storage material of the cold storage member 6.

When the cold air flows on the surface of the cold storage member 6, the temperature is raised by taking heat from the cold storage member 6, but the temperature does not rise as it flows upward. And the cool air which took heat from the cool storage member 6 flows toward the further downward direction of the store room Ty from the edge part of the cool storage member 6. FIG.

Cold air generated in a region (edge region) where the cold storage member 6 is not disposed below the wall body 410 (cooler) flows downward without contacting the cold storage member 6. The cold air that has flowed along the surface of the cold storage member 6 and has been heated, and the cold air that has been directly generated and generated by the wall body 410 (cooler) join together outside the edge of the cold storage member 6, and It flows toward the bottom. Therefore, the cold air flowing down below the storage chamber Ty has a higher temperature than when the cold storage member 6 is not attached.

Thus, by arranging the cold storage member 6, it is possible to increase the temperature of the cold air flowing down the storage chamber Ty. And it is possible to adjust the temperature of the cold air | flow which flows down below the store room Ty by changing the ratio of the cold air which flows directly down from the wall 410, and the cold air which flows through the surface of the cool storage member 6. FIG.

As a method of changing the ratio of the cold air flowing directly from the wall body 410 (cooler) and the cold air flowing on the surface of the cold storage member 6, for example, a method of changing the size of the cold storage member 6 can be mentioned.

For example, if the cold storage member 6 is made small, the amount of cold air flowing down (ratio) increases without the cold air generated on the surface of the wall body 410 (cooler) coming into contact with the cold storage member 6, and the surface of the cold storage member 6 is reduced. The amount (ratio) of cold air that has flowed and heated is reduced.

Further, by changing the material and capacity of the latent heat regenerator material of the regenerator member 6, the temperature of the cool air flowing through the surface of the regenerator member 6 can be adjusted, and the cool air flowing directly from the wall 410 (cooler) and the regenerator The temperature of the cold air mixed with the cold air flowing on the surface of the member 6 can also be changed. Thereby, it is possible to adjust the cooling rate of the storage chamber Ty. Further, the ratio of the cold air flowing directly from the wall body 410 (cooler) by changing the size of the gap between the wall body 410 (cooler) and the cold storage member 6 and the cold air flowing through the surface of the cold storage member 6 The temperature of the cold air can be adjusted and the cooling rate of the storage chamber Ty can be adjusted also by changing the value. And it is possible to adjust the temperature distribution inside the storage room Ty by adjusting the cooling rate inside the storage room Ty. The cold storage member 6 plays a role as a thermal buffer when the storage device Ty is cooled by the cooling device 3.

Further, a part of the cold air flowing downward from the gap between the cold storage member 6 and the inner wall of the storage chamber Ty flows along the upper surface of the shelf 71, and the rest flows downward of the shelf 71. The cold air that flows along the upper surface of the shelf 71 flows toward the front side, and becomes air that has been heated by cooling the articles placed on the upper surface of the shelf 71. The heated air joins the rising air flow generated on the front side and flows upward. Since the same cool air and air flow are generated in the shelf 72, the details are omitted.

Then, the cold air flowing downward from the gap between the rear end of the shelf 72 and the inner wall of the storage chamber Ty flows into the storage box 8. Since the storage box 8 is inclined so that the rear side is the front side, the cold air flows along the inclination. The cool air flows forward in the storage box 8 and becomes air that has been heated by cooling the articles stored in the storage box 8. Then, the heated air flows upward on the front side of the storage chamber Ty.

Thus, it becomes possible to effectively generate convection of cold air generated from the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4. By generating convection of the cold air, it is possible to efficiently distribute the cold air to every corner of the storage chamber Ty, and it is possible to quickly eliminate the temperature unevenness inside the storage chamber Ty.

In addition, if the cool storage member 6 is brought into contact with the wall body 410 (cooler), after the cool storage member 6 is cooled, cold air from a portion covered with the cool storage member 6 flows into the storage chamber Ty. Therefore, although the cool storage to the cool storage member 6 becomes quick, the cool air from the part covered with the cool storage member 6 does not flow down into the store room Ty until the cool storage is completed, and the cooling becomes slow.

In the refrigerator Rf of the present invention, by forming an air layer between the wall body 410 (cooler) and the cold storage member 6, the cold storage member 6 does not solidify in a short time, but instead. The cold air that has flowed through the surface flows down into the storage chamber Ty. Therefore, even during cold storage in the cold storage member 6, since cool air flows down inside the cooler Ty, it is possible to avoid slow cooling of the inside of the storage chamber Ty. Moreover, since the cool storage member 6 does not solidify in a short time, it is also possible to suppress the inside of the storage chamber Ty immediately below the cool storage member 6 by the cool storage member 6 from being overcooled for a long time.

Moreover, when it is comprised so that a big clearance gap may be formed between the lower wall body 410 (cooler) and the cool storage member 6 of the main-body part 41, the wall 410 (cooler) and the cool storage member 6 It may be possible to adjust the gap. As such an adjustment method, a spacer is attached to the lower surface of the regenerator member 6, or a mounting rail 44 (for example, by a screw) configured such that the restricting portion 442 and the guide portion 443 can be expanded and contracted and fixed at an arbitrary position. There are methods using fastening, worm gears, etc.). Moreover, it is not limited to these.

As described above, the refrigerator Rf can store articles at a plurality of temperatures in a refrigerator having one storage chamber Ty (one door 2). Moreover, it is possible to adjust the temperature distribution of the up-down direction inside the store room Ty by arrange | positioning the cool storage member 6 and adjusting the temperature of the cold air which flows through the inside of the store room Ty. In addition, since the cooling rate inside the storage chamber Ty can be adjusted, the cooling rate of the article stored in the storage chamber Ty can be made suitable for the article. Thereby, it is possible to suppress the quality deterioration by cooling of articles | goods.

Further, the cold storage member 6 may be attached and detached during operation of the storage room Ty (during cooling operation). For example, when it is desired to rapidly cool the inside of the storage room Ty of the cooler Rf, the cooling is started without attaching the cold storage member 6, and thereafter, certain conditions (for example, the internal temperature of the storage room Ty becomes a predetermined temperature). Etc.), the cooling rate of the storage chamber Ty can be adjusted by attaching the cold storage member 6. Conversely, the cooling rate of the storage chamber Ty can be increased by removing the cold storage member 6.

Furthermore, by replacing the cool storage member 6 with a different size and material, it is possible to adjust the portion of the wall body 410 (cooler) that does not overlap the cool storage member 6 and cool the storage chamber Ty appropriately. . Moreover, when replacing and using the cool storage member 6, you may make it arrange | position in the inside of a store room in the range which does not interfere with the store room Ty.

Further, in the configuration in which the cold storage member 6 is attached / detached during the operation of the refrigerator Rf as described above, a notification unit that notifies that the cold storage member 6 is attached / detached when a predetermined condition is satisfied may be provided.

In this embodiment, the mounting rail 44 is attached to the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4, but is not limited thereto. For example, it may be attached to the inner surface of the storage chamber Ty.

(Second Embodiment)
Another example of the refrigerator according to the present invention will be described with reference to the drawings. FIG. 9 is an enlarged front view of a freezing room of another example of the refrigerator according to the present invention, and FIG. 10 is a cross-sectional view of the freezing room shown in FIG. 9 taken along line XX. The cooling chamber 4 shown in FIGS. 9 and 10 has the same configuration as the refrigerator Rf shown in FIG. 1 and the like except that the cold storage member 6B disposed below the freezing chamber 4 and the mounting rail 45 for mounting the cold storage member 6B are different. have. Therefore, substantially the same parts are denoted by the same reference numerals, and detailed description of the same parts is omitted.

The cold storage member 6B is formed so that the length in the left-right direction is substantially the same as the length in the left-right direction of the wall body 410 (cooler) of the main body 41 of the freezer compartment 4. The wall 410 (cooler) of the main body 41 of the freezer compartment 4 is provided with an attachment rail 45 for attaching such a special member 6B.

As shown in FIGS. 9 and 10, the mounting rail 45 is formed at the holding portion 451 that holds the lower surface of the cold storage member 6B and the rear end portion of the holding portion 451, and the rear end portion of the cold storage member 6B. And a guide part 453 for guiding the sliding of the cold storage member 6B. In addition, at the ends of the restricting portion 452 and the guide portion 453, a fixing portion 454 for attaching to the lower wall body 410 (cooler) of the main body portion 41 is provided. The holding portion 451 and the fixing portion 454 are the same as the holding portion 441 and the fixing portion 444 of the mounting rail 44 except that the sizes are different. The restricting portion 452 is a restricting portion of the mounting rail 44 except that the position relative to the wall body 410 (cooler) when the attachment rail 45 is attached is arranged outside the projected area of the wall body 410 (cooler). It is the same as 442.

Then, as shown in FIG. 10, the rear end of the cold storage member 6 </ b> B extends rearward from the rear end of the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4. Are arranged. And the rear-end part of the cool storage member 6B is attached so that it may not contact the inner surface of the store room Ty.

As shown in FIG. 10, the rear end portion of the cold storage member 6 </ b> B is configured to rotate further to the rear side of the wall body 410 (cooler) of the freezer compartment 4. Cold air generated at the rear end also contacts the cold storage member 6B. Thereby, the very low temperature cold air generated at the rear end of the wall 410 (cooler) passes a part of the cold energy to the cold storage member 6B, so that the temperature rises and the heated cold air is stored. It flows down inside the chamber Ty. Thereby, the speed at which the cold air flows down can be suppressed, and more cold air can be branched by the

shelves

71 and 72 and the like. Moreover, since the speed of convection is slow, it takes a long time to transfer the cold energy of the cold air to the article, and the inside of the storage room Ty can be efficiently cooled.

In this embodiment, the cold storage member 6B has a length in the left-right direction that is substantially the same as the length of the wall body 410 (cooler), but is not limited to this. It is possible to widely adopt a shape that can cover the lower part of the rear end portion of the wall body 410 (cooler).

Other features are the same as in the first embodiment.

(Third embodiment)
Still another example of the refrigerator according to the present invention will be described with reference to the drawings. FIG. 11 is an enlarged front view of a freezer compartment of another example of the refrigerator according to the present invention, and FIG. 12 is a cross-sectional view of the refrigerator shown in FIG. 11 taken along line XII-XII. The refrigerator Rfc shown in FIGS. 11 and 12 has the same configuration as the refrigerator Rf shown in FIG. 1 and the like except that the storage container 5 is provided below the cold storage member 6. In the refrigerator Rfc, parts that are substantially the same as those in the refrigerator Rf are assigned the same reference numerals, and detailed descriptions of the same parts are omitted.

As shown in FIGS. 11 and 12, the storage chamber Ty of the refrigerator Rfc is provided with a storage container 5 below the freezing chamber 4 and the cold storage member 6. The storage container 5 includes a rectangular bottom plate portion 51 and side wall portions 52 erected from four sides of the bottom plate portion 51. The storage container 5 protrudes inward from the left and right side walls of the inner box 12 of the cabinet 1 and is slidably supported by a ridge 121 extending from the opening toward the back. Thereby, the storage container 5 is slidable between the protrusion position which protruded outside from the opening opened and closed by the door 2, and the storage position accommodated inside the storage chamber Ty. As can be seen from the fact that the storage container 5 is disposed close to the freezer compartment 4, a material suitable for storage at a low temperature is disposed as compared with the articles stored in the

shelves

71 and 72 and the storage box body 8. It is like that.

Cold air from the lower wall 410 (cooler) of the main body 41 of the freezer compartment 4 flows on the surface of the cold storage member 6 and flows downward from the edge of the cold storage member 6. Moreover, in the part which does not overlap with the cool storage member 6 of the wall 410 (cooler) in the up-down direction, the cool air generated in the wall 410 (cooler) flows down from the edge of the cool storage member 6 as it is. . And the cool air which flows in the wall 410 (cooler) and flows down directly, and the cool air which flowed on the surface of the cool storage member 6 make the clearance gap between the cool storage member 6 and the inner wall of the storehouse Ty of the cool storage member 6 and the storage member 5. Flow down.

Since the bottom plate portion 51 of the storage container 5 faces the cold storage member 6, the article placed on the bottom plate portion 51 is cooled by radiation from the lower surface of the cold storage member 6. The cool storage member 6 is arranged with a gap from the wall body 410 (cooler) to suppress overcooling, and the cool storage member 6 has a temperature close to the freezing point. Therefore, the article placed on the bottom plate portion 51 is cooled by radiation of the cold storage member 6, so that the article is cooled more slowly than the case where the article is cooled directly from the wall body 410 (cooler). Therefore, it is possible to cool the article stored in the storage container 5 slowly, and since the cool storage member 6 is arranged in the vicinity, the influence on the stored article is prevented against a sudden temperature change due to opening and closing of the door. Can be reduced.

In such a direct cooling type refrigerator, the storage container 5 stores articles stored at a low temperature so as not to be frozen. When an article put in from the outside is stored in such a storage container 5, a temperature difference with the article already stored in the storage container 5 becomes large, which causes a temperature increase of the already stored article. Since the cold storage member 6 is disposed close to the storage container 5, the entire storage container 5 is cooled by radiation of the cold storage member 6. The cooling by the radiation of the cool storage member 6 can cool the entire bottom plate portion 51 of the storage container 5, and thus suppresses the temperature rise of the stored articles already stored in the storage container 5 and is input from the outside. It is possible to cool the article effectively.

In this embodiment, the mounting rail 44 is attached to the lower wall body 410 (cooler) of the main body 41 of the freezer compartment 4, but is not limited thereto. For example, one having a configuration protruding from the bottom plate portion 51 of the storage container 5 and capable of holding the cold storage member 6 such that a gap (air layer) is formed between the wall body 410 (cooler) and the cold storage member 6. It may be.

Other features are the same as those in the first and second embodiments.

(Fourth embodiment)
Still another example of the refrigerator according to the present invention will be described with reference to the drawings. FIG. 13 is an enlarged front view of a freezer compartment of still another example of the refrigerator according to the present invention, and FIG. 14 is a cross-sectional view of the refrigerator shown in FIG. 13 cut along the line XIV-XIV. Although the door 2 is not shown in FIGS. 13 and 14 for convenience of explanation, actually, the door 2 is attached so as to close the opening on the front side as in FIG. The refrigerator Rfd shown in FIG. 13 and FIG. 14 has the same configuration as the refrigerator Rf shown in FIG. 1 and the like except for the storage member 6d, and substantially the same parts are denoted by the same reference numerals and detailed in the same parts. Description is omitted.

As shown in FIGS. 13 and 14, the refrigerator Rfd is formed such that the horizontal projected area of the storage container 5 d disposed at the lower part of the freezer compartment 4 is larger than the planar area of the cold storage member 6. The storage container 5d is attached to the storage chamber Ty so as to completely cover the lower portion of the cold storage member 6 in the vertical direction.

In the refrigerator Rfd, a part of the cold air mixed with the cold air from the lower wall body 410 (cooler) of the main body 41 and the cold air flowing on the surface of the cold storage member 6 flows into the storage container 5d. Thus, the article placed on the bottom plate portion 51d of the storage container 5d is cooled by the cold air flowing from the end of the cold storage member 6 and the radiation of the cold storage member 6. Thereby, it becomes possible to quickly cool the article placed on the upper portion of the bottom plate portion 51d of the storage container 5d.

And the cooling rate of the articles | goods mounted in the baseplate part 51d of the storage container 5d is adjusted by adjusting the ratio of the cooling by the cold air which flows in from the side part of the cool storage member 6, and the cooling by the radiation from the lower surface of the cool storage member 6. It is possible to change. Examples of a method for changing the cooling rate of the article placed on the bottom plate portion 51d of the storage container 5d include a method of adjusting the sizes of the storage container 5d and the cold storage member 6.

For example, when the cold storage member 6 is made smaller than the storage container 5d, cold air having a very low temperature from the surface of the wall 410 (cooler) passes through the side of the cold storage member 6, and the bottom plate portion 51d of the storage container 5d. It becomes easy to flow into. Moreover, the ratio of the cooling by the radiation from the lower surface of the cool storage member 6 can be made low because the cool storage member 6 becomes small. The article placed on the bottom plate portion 51d of the storage container 5d has a higher rate of cooling because it is cooled by low-temperature cold air.

Thus, by forming the vertical projected area of the storage container 5d larger than that of the cold storage member 6, it is possible to change the cooling rate of the article placed on the bottom plate portion 51d of the storage container 5d. Other features are the same as in the third embodiment.

(Other embodiments)
Other examples of the refrigerator according to the present invention will be described with reference to the drawings. FIG. 15 is an enlarged front view of a cold storage member of still another example of the refrigerator according to the present invention. The refrigerator Rfe shown in FIG. 15 has the same configuration as the refrigerator Rf shown in FIG. 1 and the like except for the provision of the mounting rails 44e and the two cold storage members 6, and substantially the same parts are the same. A reference numeral is attached and a detailed description of the same part is omitted.

As shown in FIG. 15, the mounting rail 44e is provided with two upper and lower holding portions 441. And the two cool storage members 6 are arrange | positioned so that a lower surface may be hold | maintained at the holding | maintenance part 441 of 2 steps | paragraphs of upper and lower sides. By attaching the regenerator member 6 to the upper and lower two-stage holding portions 441, the regenerator members 6 are arranged apart from each other. Thereby, since the lower regenerator member 6 is cooled by radiation from the upper regenerator member 6, it is possible to lengthen the time until cold energy is accumulated in the regenerator member 6. Thereby, the cooling rate of the articles | goods arrange | positioned at the storage container arrange | positioned under the cool storage member 6 can be made low.

Further, a plurality of the regenerator members 6 (two are illustrated, but not limited thereto) may be arranged in an overlapping manner. At this time, two of the same cool storage members 6 may be disposed, or cool storage members 6 having different sizes (thicknesses, projected areas) may be disposed. Moreover, you may make it arrange | position the cool storage member 6 from which a freezing point differs.

For example, by disposing the cold storage member 6 having a high freezing point on the side closer to the

storage containers

5 and 5d (lower side in FIG. 15), it is possible to slowly cool the articles stored in the

storage containers

5 and 5d. . Further, when a plurality of cold storage members 6 are provided, they may be arranged so that an air layer is also formed between the cold storage members 6. By arrange | positioning in this way, since cool air flows between the some cool storage members 6, it is possible to adjust the temperature of cold air further finely. In the example described above, two cold storage members 6 are provided. However, the present invention is not limited to this, and at least a gap is formed between the cold storage member 6 and the wall body 410 (cooler). The number is not limited as long as it can be arranged.

Moreover, in the case of a configuration in which a plurality of cold storage members 6 can be provided in this way, the cooling rate and temperature distribution inside the storage Ty are changed by changing the number of the cold storage members 6 during operation of the refrigerator Rf. You may make it do.

FIG. 16 is an enlarged cross-sectional view of a cold storage member of still another example of the refrigerator according to the present invention. As shown in FIG. 16, the mounting rail 44f for mounting the cold storage member 6 is inclined by θ ° so that the holding portion 441f goes downward as it goes rearward. Moreover, in order to hold | maintain the cool storage member 6 firmly, the control part 442f is also inclined (theta) degrees with respect to the perpendicular.

By attaching the cold storage member 6 to the mounting rail 44f, the rear side of the cold storage member 6 itself is inclined downward. By forming the slope in this way, the cold air that comes into contact with the upper surface of the cold storage member 6 and flows downward tends to flow toward the rear side of the refrigerator Rff that is on the lower side of the slope. By forming in this way, convection of cold air is likely to occur.

Moreover, as shown in FIG. 16, since the lower surface of the cool storage member 6 is parallel (or substantially parallel) to the upper surface, the lower surface is inclined upward toward the front side. When the air whose temperature has been raised inside the storage chamber Ty flows upward and comes into contact with the cold storage member 6, the air easily flows forward along the lower surface. In this way, by tilting so as to send the rising air flow to the front side, convection is likely to occur inside the storage chamber Ty.

The inclination angle θ ° of the cold storage member 6 is an angle at which the front end of the cold storage member 6 does not contact the lower wall body 410 (cooler) of the freezer compartment 4.

In addition, as a method for inclining the cold storage member 6, the mounting rail 44f is inclined, but the present invention is not limited to this. For example, you may make it use the cool storage member 6 formed so that it may incline below, so that an upper surface goes to the rear side. At this time, the lower surface may be formed to be an inclined surface except for a portion held by the mounting rail 44.

Further, it is possible to lower the cool air on the front side of the storage room Ty by setting the inclination direction of the cold storage member 6 so that the front side is downward. In this way, by curing the cool air on the front side of the storage chamber Ty, for example, when the door pockets 21, 22, and 23 are cooled, the front side of the

shelves

71 and 72 can be quickly cooled. Furthermore, the inclination direction of the cold storage member 6 may be left or right, or may be an oblique direction. By changing the inclination direction of the cold storage member 6, the position at which the cold air flows downward can be adjusted.

FIG. 17 is a plan view of a storage container used in still another example of the refrigerator according to the present invention. As shown in FIG. 17, the storage container 5g is formed with a through-hole 510 through which end cold air on the rear side of the bottom plate portion 51g passes. By forming such a through hole 510, it is easy for the cool air to flow downward, and the cool air can be circulated smoothly and reliably in the storage chamber. Thereby, the cooling rate and temperature distribution of a storage chamber can be adjusted moderately. In this embodiment, the through hole 510 is provided, but a sliding opening / closing member may be attached to adjust the opening area. Further, the bottom plate portion 51g itself can be expanded and contracted, and the bottom plate portion 51g may be expanded and contracted to form an opening through which cool air flows.

In each of the above-described embodiments, by accumulating the cold energy of the cold storage member 6, even if the cooling device 3 is stopped due to a power failure, failure, or the like, the temperature inside the storage chamber Ty is lowered for a certain period. Needless to say, it can be maintained.

Although the embodiment of the present invention has been described above, the present invention is not limited to this content, and various modifications can be made to the embodiment of the present invention without departing from the spirit of the invention. . Further, some or all of the embodiments of the present invention may be combined.

The refrigerator according to the present invention has a storage chamber Ty surrounded by a heat insulator 13, a cooler 410 that is disposed in the upper portion of the storage chamber Ty and cools the interior of the storage chamber Ty, and an air layer. The cool storage member 6 is disposed below the cooler 410, and the cool storage member 6 is disposed so as to cover part or all of the lower surface of the cooler 410.

According to this configuration, most of the air (cooled air generated) cooled by the cooler 410 contacts the cool storage member 6 and flows downward. At that time, since the cool air cools the cool storage member 6, the cool air whose temperature is too low. Is suppressed from circulating in the storage chamber Ty, and overcooling and drying in the storage chamber Ty can be suppressed.

In addition, since a part of the cold air generated in the cooler 410 can flow directly into the storage chamber Ty (without contacting the cold storage member), the temperature of the cold air flowing toward the storage chamber Ty is adjusted, It is possible to adjust the cooling rate of the storage chamber Ty. Moreover, the temperature distribution inside the storage chamber Ty can be adjusted by adjusting the temperature of the cool air flowing down.

In the refrigerator according to the present invention, the cold storage member 6 covers the lower part of the lower side of the storage chamber Ty on the lower surface of the cooler 410 and a gap is formed between the end portion and the inner surface of the storage chamber Ty. Has been placed.

According to this configuration, the cool storage member 6 is configured to cover the lower side of the storage chamber Ty on the lower surface of the cooler 410, so that the air (cold air) cooled by the cooler 410 is surely stored in the cool storage member 6. It is possible to form a ventilation path so that it may contact. Thereby, the cold energy can be accumulated in each axis in the cold storage member 6. Further, by forming a gap between the end of the cold storage member 6 and the inner surface on the back side of the storage chamber Ty, it is possible to reliably generate convection of cold air inside the storage chamber Ty. Thereby, adjustment of the temperature distribution inside the storage Ty is possible.

In the refrigerator according to the present invention, the cold storage member 6 is detachably attached to an attachment portion (attachment rail 44) provided in the cooler 410.

According to this configuration, the cold storage member 6 can be easily attached, and the space (air layer) between the cold storage member 6 and the cooler 410 can be reliably formed.

In the refrigerator according to the present invention, the upper surface of the cold storage member 6 is inclined so that the inner side of the storage chamber Ty is down.

According to this configuration, the air cooled and flowing down by the cooler 410 can be collected on the back side of the storage chamber Ty. Thereby, a convection can be efficiently generated inside the storage chamber Ty, and the temperature distribution inside the storage chamber Ty can be adjusted.

In the refrigerator according to the present invention, the lower surface of the cold storage member 6 is inclined so that the front side of the storage chamber Ty is up.

With such a configuration, when the air heated in the storage chamber Ty rises, the rising air can be collected on the front side of the storage chamber Ty. Thereby, a convection can be efficiently generated inside the storage chamber Ty, and the temperature distribution inside the storage chamber Ty can be adjusted.

In the refrigerator according to the present invention, a plurality of cold storage members 6 are attached below the cooler Ty.

By configuring in this way, the lower-stage regenerator member 6 is cooled by radiation from the upper regenerator member 6, so that the cooling time of the regenerator member 6 is extended (can be changed). Moreover, it is possible to adjust the cooling temperature and cooling rate of the storage chamber Ty by changing the size, material, and the like of the cold storage member 6.

The cooler according to the present invention includes a storage container 5d disposed with a space below the cool storage member 6, and the cooler 410 and the cool storage member 6 are disposed within the projected area of the storage container 5d.

By being configured in this way, the articles arranged in the storage container 5d are cooled by both cooling by the radiation of the cool storage member 6 and cooling by air (cold air) cooled by the cooler 410. Can do. And the ratio of the cooling by radiation and the cooling by cold air can be adjusted by changing the size of the cold storage member 6, and the cooling rate of the articles arranged in the storage container 5d can be adjusted. is there.

In the refrigerator according to the present invention, the upper end portion of the storage chamber Ty is provided with the freezing chamber 4 for freezing and storing articles, and the cooler includes a wall 410 on the lower side of the freezing chamber 4.

With this configuration, a plurality of spaces having different temperatures can be formed in the storage chamber Ty. Moreover, cooling of the freezer compartment 4 and cooling of the cool storage chamber Ty can be made common, and it can suppress that the internal space of the storage chamber Ty becomes narrow.

The present invention generates spaces with different storage temperatures, such as freezing, refrigeration (for example, about 1 to 5 degrees Celsius), ice cooling (about 0 to 1 degrees Celsius), and the like, while suppressing deterioration in the quality of articles to be stored. It can be used in a refrigerator that efficiently cools or cools an article.

Rf Refrigerator Ty Storage chamber 1 Cabinet 11 Outer box 12 Inner box 121 Convex part 13 Heat insulator 14 Machine room 2 Door 20

Hinge

21, 22, 23 Door pocket 3 Cooling device 31 Compressor 32 Wall condenser 33 Dryer 34 Capillary tube 35 Evaporator 4 Freezer compartment 41 Main body part 42 Cover 421 Window part 43 Door part 44 Mounting rail 441 Holding part 442 Restricting part 443 Guide part 444 Fixing part 5 Storage container 51 Bottom plate part 52 Side wall part 6

Cold storage member

71, 72 Shelf 8 Storage box body

Claims

A storage room surrounded by insulation,
A cooler disposed in an upper portion of the storage chamber and cooling the interior of the storage chamber;
A regenerator member disposed below the cooler across an air layer,
The said cool storage member is arrange | positioned so that a part or all of the lower surface of the said cooler may be covered, The refrigerator characterized by the above-mentioned.
The said cool storage member is arrange | positioned so that a clearance gap may be formed between the edge part and the inner surface of the back side of the said storage chamber while covering the lower part of the back side of the lower surface of the said cooler. Refrigerator.
The refrigerator according to claim 1 or 2, wherein the cold storage member is detachably attached to an attachment portion provided in the cooler.
A storage container disposed with a space below the cold storage member is provided,
The refrigerator according to any one of claims 1 to 3, wherein the cooler and the cold storage member are disposed within a projected area of the storage container.
The upper end of the storage room is equipped with a freezing room for freezing and storing articles,
The refrigerator according to any one of claims 1 to 4, wherein the cooler includes a lower wall of the freezer compartment.