JP2009019850A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a refrigerator capable of installing a heat insulating partition wall in a body, before foaming and filling a heat insulating material in a refrigerator body, by reducing the size by arranging a freezing cooler and a cooling fan on a back face of a storage chamber by taking into consideration a position of the heat insulating partition wall. <P>SOLUTION: This refrigerator is provided with refrigerating and cooling coolers for respectively exclusively cooling a refrigerating storage space and a freezing storage space partitioned into a plurality of independent storage chambers by insulating heat, and a fan for circulating cold air to respective cooling spaces. A refrigerating cooler 14 and a refrigerating fan 15 are arranged on a back face of a refrigerating chamber 5 arranged in the uppermost part of the storage space, and a freezing cooler 16 and a freezing fan 17 are arranged on a back face between upper-lower heat insulating partition walls 12 and 13 forming an independent storage chamber 9 of the largest storage volume among the storage chambers positioned under the refrigerating chamber. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a refrigerator having a refrigerated storage space and a refrigerated storage space and provided with a cooler for cooling each of them and a fan for circulating cold air.

  As shown in a vertical cross-sectional view in FIG. 8, a refrigerator in recent years has a refrigerator room (55) that is used most frequently and has a large volume at the uppermost part in a heat insulating box (51) that is a main body. The ice-making room (57) and the temperature switching room are placed side by side, and a vegetable room (60) that is a refrigerated space similar to the refrigerated room (55) and stores vegetables is provided at the bottom, and the freezer room is at the bottom. There are more types to arrange (59).

  A refrigeration cooler (64) and a refrigeration fan (65) for cooling the refrigeration space are arranged on the back of the refrigeration room (55), and the vegetable room (60) and ice making room (57) below are arranged. ), A freezing cooler (66) for cooling a freezing space such as the ice making room (57), the temperature switching room, the freezing room (59), and a freezing fan (67). ) Is installed in the cooler chamber (69), and the refrigerant from the compressor (70) provided in the machine chamber at the lower part of the main body is refrigerated and cooled by the switching valve or the like (64) ( 66) alternately flows into the storage spaces by the fans (65) and (67), and cools them to a predetermined temperature (see, for example, Patent Document 1).

The heat insulating space in the heat insulating box (51) is filled with a foam heat insulating material () made of urethane foam by an on-site foaming method, and the refrigerator compartment (55) has a front opening. The vegetable room (60), ice making room (57), temperature switching room, and freezing room (59) are closed by a pivoting door, and can be pulled out by a pull-out door, container, and rail. Yes.
JP 2006-220377 A

  However, in the case of the above-described configuration, the refrigerator room (69) in which the refrigeration cooler (66), the refrigeration fan (67) and the like are installed is, as described above, the vegetable room (60) and the ice making room (57 ), Since the temperature switching chamber is arranged over the back surface, as is clear from FIG. 9 showing the front view, the heat insulating partition walls (62) and (63) separating the chambers are refrigerators. After the foam insulation (54) is filled in the main body (51 '), it can only be assembled in the main body after the refrigeration cooler (69) is installed in the cooler chamber (69). The seal configuration and screw fixing to prevent the cold air flow between the storage chambers such as the chamber (60), the ice making chamber (57), and the temperature switching chamber (58) are necessary. was there.

  The present invention has been made in consideration of the above circumstances, and is designed to be compact by disposing a refrigeration cooler, a cooling fan, etc. on the back of the storage room in consideration of the position of the heat insulating partition wall. An object of the present invention is to provide a refrigerator in which a heat insulating partition wall can be assembled to a main body before foam filling of the heat insulating material.

  In order to solve the above-mentioned problems, the present invention circulates cold air in a refrigeration and refrigeration cooler that cools a refrigerated storage space and a refrigerated storage space that are insulated in a plurality of independent storage chambers, respectively, and each cooling space In a refrigerator provided with a fan, a refrigeration cooler and a refrigeration fan are installed on the back of a refrigeration room arranged at the top of the storage space, and the storage capacity of the storage room located below the refrigeration room is the largest. A refrigeration cooler and a refrigeration fan are arranged on the back surface between the upper and lower heat insulating partition walls forming a large independent storage chamber.

  According to the present invention, each storage room can be effectively cooled by installing a cooling device and a cooling fan dedicated to each storage space for refrigeration and refrigeration, and the refrigeration cooler and the cooling fan on the back of the storage room By arranging it between the upper and lower heat insulating partition walls forming the independent storage chamber, the heat insulating partition wall can be assembled to the main body in advance before foam filling of the heat insulating material into the refrigerator main body, eliminating the need for sealing work between the storages. As a result, manufacturing efficiency can be improved and costs can be reduced.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of a refrigerator, and FIG. 2 is a front view thereof. A foam heat insulating material (2) and an inner box (3) and a foam heat insulating material (in-situ foaming) filled in a space portion between these inner and outer boxes An ice making room equipped with an automatic ice maker having a relatively small volume via a heat insulating partition wall (6) at the top, with the inside of the heat insulating box (1) comprising 4) as a storage space at the top. (7) and a temperature switching chamber (8) are provided side by side, and a freezing chamber (9) is disposed below them and a vegetable chamber (10) is independently disposed at the lowermost portion. Between the ice making chamber (7) and the temperature switching chamber (8), between these chambers and the lower freezing chamber (9), and between the freezing chamber (9) and the vegetable chamber (10). Insulating partition walls (11), (12), and (13) are provided, and a dedicated door is provided at the front opening of each storage chamber so as to be freely opened and closed.

  Since the refrigerator compartment (5) has the largest storage capacity and is frequently used, the opening is pivotally closed by pivotally supporting a double door with hinges provided on both sides of the front opening. The storage rooms such as the ice making room (7) and the temperature switching room (8), the freezing room (9), and the vegetable room (10) other than the refrigerating room (5) arranged in the lower part have a smaller storage capacity than the refrigerating room. From the ease of use depending on the installation height position, the container held on the support frame fixed to the door is slid back and forth with the rail member provided on the indoor wall surface, and is pulled out of the room together with the opening operation to open the upper surface of the container The drawer door system is used to store and take out food from.

  On the back of the refrigerator compartment (5), a refrigerator for cooling (14) for cooling the refrigerator compartment (5) and the vegetable compartment (10), and the cold air generated by the cooler through the duct ( 5) A refrigeration fan (15) to be supplied into the refrigeration room (9), which is installed next to the refrigeration room (5) positioned downward from the central part of the main body, is placed behind the freezing room (9). A freezing cooler (16) for cooling the freezing storage space including the freezing room (9), ice making room (7) or temperature switching room (8) and a freezing fan (17) for supplying cold air to each room are installed. ing.

  As described above, the refrigeration storage space is provided separately from the refrigeration storage space dedicated cooler and fan, so that the refrigeration storage space can be refrigerated compared to a system that cools both the refrigeration and freezing storage space with a single cooler. The chiller (16) and the refrigeration fan (17) can be made compact by reducing their height dimensions, and the cold air from the refrigeration fan (17) is transferred to the ice making chamber (7) and the temperature switching chamber (8). ) And the like, and a damper (18) that is supplied to each freezing storage space and controlled to cool to a predetermined temperature, and a ceiling portion of the freezing room (9) that has a relatively large storage capacity with respect to other drawer door type storage rooms. The cooler chamber (19) formed in the space between the heat-insulating partition wall (12) to be formed and the heat-insulating partition wall (13) that forms the bottom surface of the freezer compartment (9) and partitions the vegetable compartment (10) below. ) Can be stored in. In addition, (20) is an evercomb that divides the cooler chamber (19) and the freezer chamber (9).

  Therefore, as shown by hatching in FIG. 3 which is the state of the heat insulating space before foaming of the refrigerator main body (1), the partition wall constituting body (11 ′) which becomes the heat insulating partition walls (11), (12) and (13) (12 ') and (13') can be assembled in advance in a box (1 ') consisting of inner and outer boxes (3) and (2) that are not yet filled with foam insulation. By forming an opening (21) communicating with the space between the inner and outer boxes (3) and (2) at the rear and side of the partition wall structure (11 ', 12' and 13 ') When the stock solution of the foam insulation (4) is injected into the space between the outer box (2) and the inner box (3) by foaming in-situ, the stock solution is divided into the partition walls (11 ′) (12 ′) The heat insulating partition walls (11), (12), and (13) can be formed by also flowing into the space constituting (13 '), foaming, and solidifying.

  At this time, the heat insulation partition walls (11), (12) and (13) are integrated with the heat insulation box (1) on the refrigerator body side through the opening (20), and are made of urethane foam having high heat insulation performance. Since the wall thickness can be reduced by reducing the wall thickness, the storage space in the compartment can be increased, and at the same time, the rigidity as the heat insulating box (1) can be enhanced by the adhesive force. Cooling air flow between the partition wall periphery and the inner surface of the inner box, which was necessary in the conventional method of attaching a heat insulating partition wall after foam filling of the heat insulating material between the inner and outer boxes, that is, in the case of the retrofitting method of the heat insulating partition wall Since the seal configuration and the reinforcement configuration for prevention are not required, and screw fixing for holding the heat insulating partition wall is also unnecessary, the productivity can be significantly improved and the cost can be reduced.

  The damper (18) can also be installed between the heat insulating partition walls (12) and (13) in the same manner as described above. However, since the damper (18) is small in size, after filling with the foam heat insulating material (4). You may make it attach to an appropriate location.

  In the said structure, cooling of the said vegetable compartment (10) arrange | positioned at the lowest is cooling air after circulating the inside of a refrigerator compartment (5), as the member arrangement | positioning in a heat insulation box (1) is shown in FIG. A cold air outlet duct (23) arranged at the back of the temperature switching chamber (8) and the freezing chamber (9) is caused to flow down from the suction port (22) formed below the refrigerator compartment (5) to the vegetable chamber (10). The cold air after cooling the vegetable compartment (10) is returned to the lower side of the refrigeration cooler (14) through the cool air return duct (24), and cooled and cooled. The circulation of the cool air discharged into the refrigerator compartment (5) again by (15) is repeated.

  And the cold air blowing duct (23) and the cold air return duct (24) from the said refrigerator compartment (5) to the vegetable compartment (10) are shown in FIG. 5 which is a cross-sectional view of the freezer compartment (9) portion of FIG. As described above, the two refrigeration coolers (16) on the back side of the freezer compartment (9) are arranged in a state of being overlapped in the front-rear direction. At this time, the cold blowout duct (23) is arranged on the low temperature freezer compartment (9) side, and the cold return duct (24) whose temperature is increased by heat exchange is arranged on the back side, so that the blown cold air is cooled at a lower temperature. The heat exchange efficiency can be satisfactorily performed, for example, by suppressing the heat leakage of the return cold air to the outside air.

  In the above configuration, the two ducts (63) (64) for returning and returning are usually provided on both sides of the refrigeration cooler (66). By arranging them in the direction, it is possible to increase the width of the refrigeration cooler (16) on the back, and to reduce the height of the cooler accordingly, the heat insulating partition wall (12) (13 ) Are easily arranged within the limited dimensions.

  The refrigeration cooler (16) is a heat insulating partition wall after foam filling of the foam heat insulating material (4) into the box (1 ') and the partition wall structure (11') (12 ') (13'). It is attached to the cooler chamber (19) between (12) and (13), but is not limited to this, and is attached in advance between the partition wall structures (12 ') and (13'). Then, it may be made to foam on-site.

  In contrast to the embodiment, as shown in FIG. 6 in which the same parts as in FIG. 1 are denoted by the same reference numerals, the heat insulating partition wall (13) on the lower side of the cooler chamber (19) is recessed downward to form a recess (25). When the lower end of the refrigeration cooler (16) is lowered downward, the position of the refrigeration fan (17) can be lowered together with the upper end position of the refrigeration cooler (16). The refrigeration cooler (16) and the refrigeration fan (17) can be arranged between the partition walls (12) and (13), and the partition wall structure is placed inside the housing before foaming of the foam insulation (4). It becomes easier to assemble.

  Regarding the above, conversely, as shown in FIG. 7, the rear upper surface of the heat insulating partition wall (12) on the upper side of the freezer compartment (9) may be recessed upward to form a recess (26). In addition, if the thickness dimension in the front-rear direction of the refrigeration cooler (16) is increased, and the height dimension is decreased accordingly to maintain the cooler surface area, the heat insulating partition is maintained while maintaining the cooling performance of the cooler. The refrigeration cooler (16) and the refrigeration fan (17) can be easily arranged between the walls (12) and (13), and the partition wall structure is placed in the housing before foaming of the foam insulation (4). It is easy to assemble.

  In the above embodiment, the storage room layout has the refrigerator compartment (5) at the top, then the ice making room (7) and the temperature switching room (8), and the freezer compartment (9) at the bottom. Although it arrange | positioned like the vegetable room (10) in the lowest part, this invention is not restricted to this, The point is an independent storage room with the largest storage capacity among the storage rooms located below the refrigerator compartment (5). A refrigeration cooler and a refrigeration fan may be disposed on the back surface between the upper and lower heat insulating partition walls (12) and (13) that form the shape.

It is a longitudinal cross-sectional view of the refrigerator which shows one Embodiment of this invention. It is a front view which shows the positional relationship of the heat insulation partition wall of FIG. 1, a cooler, and a fan. It is a perspective view which shows the state of the heat insulation space before foaming of the refrigerator main body in FIG. It is a perspective view which shows the member arrangement | positioning in the heat insulation box in FIG. It is a cross-sectional view which shows the cooler for freezing of FIG. 4, and a duct part. It is a longitudinal cross-sectional view of the same part as FIG. 1 which shows the other Example of this invention. It is a longitudinal cross-sectional view of the same part as FIG. 1 which shows the further another Example of this invention. It is a longitudinal cross-sectional view which shows the conventional refrigerator structure. It is a front view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat insulation box 1 'Box before foaming 2 Outer box 3 Inner box 4 Foam insulation 5 Cold storage room 6 Heat insulation partition wall 7 Ice making room 8 Temperature switching room 9 Freezing room 10 Vegetable room 11, 12, 13 Heat insulation partition wall
11 ', 12', 13 'Partition wall structure 14 Refrigerator
15 Refrigeration fan 16 Refrigeration cooler 17 Refrigeration fan
18 Damper 19 Cooler chamber 21 Opening
23 Cold air outlet duct 24 Cold air return duct 25, 26 Recess

Claims (5)

  In a refrigerator provided with a refrigeration and refrigeration cooler that exclusively cools a refrigerated storage space and a refrigerated storage space that are insulated in a plurality of independent storage chambers, and a fan that circulates cold air in each cooling space. The upper and lower heat insulating partitions that form the independent storage chamber with the largest storage capacity among the storage chambers located below the refrigeration chamber, with a refrigeration cooler and a refrigeration fan installed on the back of the uppermost refrigeration chamber A refrigerator having a refrigeration cooler and a refrigeration fan disposed between the walls.   The storage room with the refrigeration cooler and the refrigeration fan on the back is the freezing room, and the cold air outlet duct from the refrigerated room to the vegetable room and the cold air return duct from the vegetable room are connected to the freezer The refrigerator according to claim 1, wherein the refrigerator is arranged on one side in the front-rear direction.   The rear lower surface of the heat-insulating partition wall below the independent storage chamber having the refrigeration cooler and the refrigeration fan disposed on the back is recessed downward, and the lower end of the refrigeration cooler is lowered downward by that amount. The refrigerator according to claim 1.   The rear upper surface of the heat insulating partition wall above the independent storage chamber with the refrigeration cooler and the refrigeration fan on the back surface is recessed upward, and the upper end of the refrigeration cooler or refrigeration fan is raised upward accordingly. The refrigerator according to claim 1.   After installing partition wall structures on the top and bottom of independent storage chambers with refrigeration coolers and refrigeration fans on the back, foaming insulation is injected into the heat insulation space of the housing consisting of the inner and outer boxes of the refrigerator body. 2. The refrigerator according to claim 1, wherein a foamed heat insulating material is filled and integrated into the partition wall constituting body through an opening communicating with the inside of the housing.

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