JP2017003143A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator which prevents dew condensation water from flowing over an installation surface of the refrigerator and causing the installation surface to be immersed in the water even if dew condensation occurs on an outer surface of a heat insulation box.SOLUTION: In a refrigerator 1, a storage space is formed in a heat insulation box 2. The refrigerator 1 includes a projection 5, which protrudes outward and extends in a fore and aft direction, at an outer surface lower part of a side wall of the heat insulation box 2.SELECTED DRAWING: Figure 4

Description

  Embodiments of the present invention relate to refrigerators.

  The refrigerator is composed of a heat insulating box provided with a heat insulating material in a heat insulating space formed between the outer box and the inner box, and forms a storage space inside the heat insulating box. In order to prevent dew condensation that occurs on the outer surface of the heat insulation box due to the temperature difference between the heat sink, a heat source such as a heat radiating pipe or a dew proof heater that forms part of the refrigeration cycle is provided on the heat insulation space side of the outer box (for example, Patent Document 1).

  However, in the refrigerator, there is a high demand for a large internal volume with respect to the installation space, and since the wall thickness of the heat insulation box is becoming thinner, a heat source for preventing condensation is transferred to the heat insulation space of the heat insulation box. It is difficult to dispose and condensation tends to occur in the heat insulating box.

JP 2008-57919 A

  Accordingly, an object of the present invention is to provide a refrigerator in which, even if condensation occurs on the outer surface of the heat insulating box, the generated condensed water does not flow down to the refrigerator installation surface and the installation surface is not flooded.

  The refrigerator of this embodiment is a refrigerator in which a storage space is formed inside the heat insulation box, and includes a protrusion that protrudes outward and extends in the front-rear direction at the lower part of the outer surface of the side wall of the heat insulation box.

It is a front view of the refrigerator which concerns on one Embodiment of this invention. It is sectional drawing of the refrigerator of FIG. It is a figure which shows the refrigerating cycle of the refrigerator of FIG. It is a side view of the refrigerator of FIG. It is a top view which shows the front part of the refrigerator of FIG. 1 which abbreviate | omitted the door. It is AA sectional drawing of FIG. It is a side view of the refrigerator which concerns on the example of a change of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The refrigerator 1 which concerns on this embodiment is provided with the heat insulation box 2 opened to the front, as shown in FIG.1 and FIG.2. The heat insulation box 2 is configured by including a heat insulating material such as a vacuum heat insulating material or a foam heat insulating material in a heat insulating space 7 formed between an outer box 4 made of steel plate and an inner box 6 made of synthetic resin. . The heat insulation box 2 is provided with a plurality of storage spaces inside the inner box 6, specifically, a refrigerating room 10 and a vegetable room 12 are provided in order from the upper stage, and an ice making room 14 and a small freezer are provided below. The chambers 16 are provided side by side, and a freezing chamber 18 is provided below them. An automatic ice making device is provided in the ice making chamber 14.

  Each of the refrigerator compartment 10 and the vegetable compartment 12 is a storage compartment that is cooled to a refrigeration temperature zone (for example, 1 to 4 ° C.), and is partitioned vertically by a partition wall 13 made of synthetic resin. . The front opening of the refrigerator compartment 10 is provided with a rotating heat insulating door 10a pivotally supported by a hinge 8.

  A drawer-type heat insulating door 12 a is provided at the front opening of the vegetable compartment 12. An upper and lower two-stage storage case 20 constituting a storage container is connected to the back surface of the heat insulating door 12a.

  The ice making room 14, the small freezing room 16, and the freezing room 18 are all storage rooms cooled to a freezing temperature zone (for example, −10 to −20 ° C.), and the vegetable room 12, the ice making room 14, and the small freezing room. 16 is partitioned vertically by a heat insulating partition wall 22 provided with a heat insulating material inside. In addition, drawer-type heat insulating doors 14a, 16a, and 18a are also provided at the front opening portions of the ice making chamber 14, the small freezing chamber 16, and the freezing chamber 18, and are stored in the rear portions of the heat insulating doors 14a, 16a, and 18a. The containers 24 and 28 are connected.

  A refrigerated cooler room 30 and a duct 32 are formed in the back of the refrigerated temperature zone storage room (the refrigerated room 10 and the vegetable room 12) of the heat insulating box 2. The refrigeration cooler room 30 is provided with a refrigeration cooler 52 and a refrigeration fan 53, and the refrigeration fan 53 cools the air in the refrigeration cooler room 30 cooled by the refrigeration cooler 52 through the duct 32. These storage rooms are cooled by supplying to 10 and the vegetable compartment 12.

  A refrigeration cooler room 34 and a duct 36 are provided at the back of the storage room (the ice making room 14, the small freezing room 16, and the freezing room 18) in the freezing temperature zone of the heat insulating box 2. A refrigeration cooler 54 and a refrigeration fan 55 are provided inside the refrigeration cooler chamber 34, and the refrigeration fan 55 cools the air in the refrigeration cooler chamber 34 cooled by the refrigeration cooler 54 through the duct 36. By supplying the ice making room 14, the small freezing room 16, and the freezing room 18, these storage rooms are cooled.

  The refrigeration cooler 52 and the refrigeration cooler 54 constitute a refrigeration cycle 50 together with the compressor 56 and the condenser 58. As shown in FIG. 3, the refrigeration cycle 50 includes a compressor 56 that discharges a high-temperature and high-pressure gaseous refrigerant, a condenser 58 that receives the gaseous refrigerant discharged from the compressor 56 and liquefies heat, and a condenser A switching valve 60 provided on the outlet side of the cooler 58 for switching the refrigerant flow path, a refrigeration cooler 52 and a refrigeration cooler 54, a refrigeration decompression device 62 and a refrigeration as a throttle means for the coolers 52 and 54. The pressure reducing device 64 and the check valve 66 are connected to each other by a refrigerant pipe, whereby the refrigerant discharged from the compressor 56 is circulated to cool the refrigeration cooler 52 and the refrigeration cooler 54.

  The compressor 56 and the condenser 58 constituting the refrigeration cycle 50 are accommodated in a machine room 38 formed by sinking the lower back portion of the heat insulating box 2 upward. Specifically, the compressor 56 is placed on the comp table 68 via a vibration isolating rubber on one side in the width direction of the machine room 38. Further, on the other side in the width direction of the machine room 38, a duct 70 formed along a front wall defining the front of the machine room 38, a condenser 58 housed in the duct 70, and a condenser 58 A heat dissipating fan 72 located behind is provided. And by the drive of the heat radiating fan 72, the air outside the compartment flows from the front of the heat insulation box 2 to the rear through the gap between the bottom surface of the heat insulation box 2 and the installation surface of the refrigerator 1, and below the machine room 38. The air is taken into the machine room 38 through the duct 70 from the suction port 74 that opens, and is sent to the condenser 58 and the compressor 56 to cool them.

  A pair of left and right front legs 40 provided on the front side and a pair of left and right rear legs 41 provided on the rear side are arranged on the bottom surface of the heat insulation box 2, and the heat insulation box 2 and an installation surface such as a floor are arranged. A space with a constant interval is provided between them. The pair of left and right front legs 40 positioned forward among the legs arranged at the four corners are provided such that the height can be adjusted by the user.

  The pair of left and right front feet 40 are fixed to the bottom surface of the heat insulating box 2 and are installed with a pair of left and right foot mounting portions 42 protruding forward from the bottom surface of the heat insulating box 2 with a length not exceeding the thickness of the heat insulating door 18a. And a foot member 44 having a flat column shape that contacts the surface. The pair of left and right foot mounting portions 42 are provided with screw holes into which male screws provided on the foot member 44 are screwed. By rotating the foot member 44, the height of the heat insulating box 2 can be adjusted. ing.

  In the refrigerator 1 having such a configuration, the lower part of the left and right side walls of the heat insulation box 2, preferably the part of the side wall of the freezer compartment 18 that is cooled to the freezing temperature on the left and right side walls of the heat insulation box 2. The protrusion 5 is provided below the lower part or the part. The ridge 5 is formed by projecting and deforming the left and right side plates 4a of the outer box 4 outward. The ridge 5 is provided over substantially the entire width of the side plate 4a of the outer box 4 from the rear end to the front end of the heat insulating box 2 along the front-rear direction of the heat insulating box 2. In this example, the protrusion 5 is provided so as to be inclined downward as it goes forward, and a tray 46 is provided below the front end of the protrusion 5.

  As shown in FIGS. 5 and 6, the tray 46 is formed in a dish shape that is open upward and recessed downward, and is provided integrally with the foot mounting portions 42 of the pair of left and right front legs 40. The receiving tray 46 is connected to the foot mounting portion 42 of the pair of left and right front feet 40, and protrudes outward in the width direction from the heat insulating box 2 and extends rearward from the front end of the heat insulating box 2 to the side plate of the outer box 4. The water receiving part 46b located under the front end of the protrusion 5 provided in 4a and the handle hole 46c which penetrates the connection part 46a in the up-down direction are provided.

  A front foot cover 48 is attached to the pair of left and right front feet 40 and the tray 46 and covers the upper and front surfaces of the front feet 40 and the tray 46. The forefoot cover 48 has a vent hole 48 a formed at a position facing the front surface or the upper surface of the tray 46.

  The operation of the refrigerator having the above-described configuration will be described.

  In the refrigerator 1, the compressor 56 is driven to start the operation of the refrigeration cycle 50, and the refrigeration fan 53 and the refrigeration fan 55 are rotated to supply cold air to the respective storage chambers for cooling. At this time, if condensation occurs on the outer surfaces of the left and right side walls of the heat insulation box 2 due to a temperature difference between the outside air and the storage chamber, the debris flows down through the side plates 4a of the outer box 4 constituting the outer surfaces of the side walls. Condensed water that flows downward is received by the ridge 5 provided at the lower part of the refrigerator 1 and does not flow down to the installation surface of the refrigerator 1.

  In the present embodiment, since the protrusion 5 is provided so as to be inclined downward as it goes forward, the condensed water received by the protrusion 5 is guided forward along the inclination of the protrusion 5. Since the water flows into the water receiving portion 46b of the receiving tray 46 disposed below the front end of the tray and is stored in the receiving tray 46, even if the amount of condensation increases, the water leaks down from the ridge 5 and the condensed water flows down to the installation surface of the refrigerator 1. There is nothing.

  In addition, since the receiving tray 46 is provided with a handle hole 46c penetrating the connecting portion 46a in the vertical direction, it is not necessary to separately provide the handle portion in the heat insulating box 2, and the number of parts can be reduced.

  In addition, in the present embodiment, the vent hole 48a is provided in the forefoot cover 48 that covers the forefoot 40 and the tray 46, and the outside air flows into the forefoot cover 48 through the vent hole 48a, so that water is stored in the tray 46. Condensed water tends to evaporate naturally. In particular, by rotating the radiating fan 72 along with the operation of the refrigeration cycle 50, the air below the machine room 38 is taken into the duct 70 from the suction port 74, and the condenser 58 provided inside the duct 70 is cooled while The compressor 56 provided in the machine room 38 is cooled, and at that time, the outside air flows from the front of the heat insulation box 2 to the rear through the gap between the bottom surface of the heat insulation box 2 and the installation surface. Since it is sucked into the mouth 74, natural evaporation of the condensed water stored in the tray 46 can be promoted.

  Further, in the present embodiment, the protrusion 5 is provided below or below the portion of the heat insulating box 2 that divides the side of the freezer compartment 18 that has a large temperature difference from the outside air and is likely to cause dew condensation. The dew condensation water generated on the side wall of the heat insulation box 2 can be reliably received by the ridge 5, and the installation surface can be prevented from being flooded.

  In the above-described embodiment, the case has been described in which the protrusion 5 provided along the front-rear direction on the lower outer surface of the left and right side walls of the heat insulation box 2 is inclined downward as it goes forward, as shown in FIG. You may provide horizontally. In this way, even by providing the protrusions 5 along the horizontal direction below the outer surface of the left and right side walls of the heat insulating box 2, it is possible to catch the condensed water that flows down through the side plate 4 a of the outer box 4. Can be prevented from flowing down to the installation surface of the refrigerator 1.

  In the above-described embodiment, the case where the ridge 5 is formed integrally with the outer box 4 by projecting and deforming the left and right side plates 4a of the outer box 4 outward is described. It may be provided separately from the box 4 and detachably fixed to the outer surface of the side wall of the heat insulating box 2 by a magnet or the like. Thus, when it is a case where the protrusion 5 is detachably fixed with respect to the side wall of the heat insulation box 2, the protrusion 5 is removed when it is unnecessary, and the side wall of the heat insulation box 2 is made into a flat plane without unevenness. It is possible to improve the aesthetics of the refrigerator, and it becomes easy to clean the side walls and the ridges 5 of the heat insulating box 2 by removing the ridges 5 at the time of cleaning.

  Further, in the present embodiment, the case where the foot mounting portion 42 and the tray 46 that constitute the front foot 40 are provided integrally has been described. However, the tray 46 is provided separately from the foot mounting portion 42 and the bottom front portion of the heat insulating box 2 is provided. You may attach to.

  As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 2 ... Thermal insulation box, 4 ... Outer box, 4a ... Side plate, 5 ... Projection, 6 ... Inner box, 7 ... Thermal insulation space, 10 ... Cold room, 12 ... Vegetable room, 13 ... Partition wall, 14 ... Ice making room, 16 ... Small freezer room, 18 ... Freezer room, 38 ... Machine room, 40 ... Forefoot, 42 ... Foot mounting part, 44 ... Foot member, 46 ... Receptacle, 46a ... Connecting part, 46b ... Water receiving part, 46c ... Hand hole, 48 ... Forefoot cover, 48a ... Vent, 50 ... Refrigeration cycle, 52 ... Refrigerator cooler, 54 ... Refrigerator cooler, 56 ... Compressor, 58 ... Condenser, 60 ... Switch valve, 68 ... Comp 70, Duct, 72 ... Radiating fan, 74 ... Suction port

Claims (8)

  In the refrigerator in which a storage space is formed inside the heat insulation box, the refrigerator includes a protrusion that protrudes outward and extends in the front-rear direction at a lower portion of the outer surface of the side wall of the heat insulation box.   The refrigerator according to claim 1, wherein the protrusion is provided horizontally. Comprising a saucer provided at the front lower part of the heat insulation box,
The refrigerator according to claim 1, wherein the ridge is provided so as to be inclined downward toward the front, and a lower end of the ridge is located above the tray.   The refrigerator according to claim 3, wherein the tray includes a handle hole penetrating in a vertical direction.   The refrigerator according to claim 3, further comprising a cover that covers an upper surface of the tray, wherein the cover is provided with a vent hole.   The heat insulation box includes a compressor room and a machine room that houses a cooling fan that blows air to the compressor, and a suction port provided on a bottom surface of the machine room, and the heat insulation box drives the heat insulation box. The refrigerator according to any one of claims 3 to 5, wherein air below the box is taken into the machine room from the suction port. A freezing room cooled to a freezing temperature is partitioned into the storage space,
The refrigerator of any one of Claims 1-6 in which the said protrusion is provided in the position which divides the side of the said freezer compartment in the side wall of the said heat insulation box, or the downward direction from the position.   The refrigerator according to any one of claims 1 to 7, wherein the protrusion is detachably fixed to the side wall.

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