JP2004012026A - Chill blow-off structure of refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make uniform the cooling of food, drink or the like by improving circulation efficiency in chill inside an accommodation chamber. <P>SOLUTION: A shielding member 34 is arranged inside a heat insulating housing 12, a cooling chamber 32 is demarcated at a lower portion as compared with the shielding member 34 and the storage chamber 26 is demarcated at the upper section. An outlet 36, where chill that heat-exchanged with a cooler being arranged at the cooling chamber 32 is blown to the storage chamber 26, is provided at the rear side of the shielding member 34. An air guide 46 is detachably fitted to the outlet 36 via a fitting section 51. Chill blown from the outlet 36 is guided toward the upper section of the storage chamber 26 by the air guide 46. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
BACKGROUND OF THE INVENTION
More specifically, the present invention relates to a refrigerator that cools cold air that has been heat-exchanged by a cooler disposed in the lower part of the box, and blows it into a storage room defined in the upper part of the box. This relates to a cold air blowing structure.
[0002]
[Prior art]
Refrigerators (refrigerated showcases) that store and display food and drink in a refrigerated state are preferably used in grocery stores, convenience stores, and the like. As shown in FIGS. 6 and 7, the refrigerator 10 is formed in a rectangular heat insulation box (box) 12 and a lower part of the heat insulation box 12. It is basically composed of a machine room 14 to be disposed, and a front door 16 and a rear door 18 that open and close an opening 24 opened to the front side of the heat insulating box 12. The heat insulation box 12 is composed of an inner box 20 and an outer box 22 formed so that one of the wall surfaces is opened, and an opening 24 is formed on the front side by combining the open parts in an aligned state. In addition to being formed, the inside of the space defined by both boxes 20 and 22 is filled with a foam heat insulating material such as urethane. In addition, a shielding member 34 is disposed below the inside of the heat insulating box 12, and a storage chamber 26 for storing food and drinks is defined upward via the shielding member 34. A cooling chamber 32 in which the cooler 28 and the internal fan 30 are housed is internally defined.
[0003]
The shielding member 34 is formed with a suction port 35 communicating with the storage chamber 26 and the cooling chamber 32 on the front side, and an outlet 36 is formed on the rear side. The air outlet 36 is a portion cut out in a rectangular shape along the left-right direction (width direction) of the heat insulating box 12 on the rear side of the shielding member 34, and, like the air inlet 35, the cooling chamber 32 and the storage chamber. 26 is communicated. Then, by rotating the internal fan 30, the storage room air sucked into the cooling chamber 32 from the suction port 35 is exchanged with the cooler 28 to form cold air, and then the cold air is passed through the outlet 36. And is configured to blow upward toward the rear of the storage chamber 26. Further, as shown in the drawing, a shelf network 38 is arranged in a multistage manner in the storage chamber 26, and food and drinks are stored and displayed through the shelf network 38. The opening 24 of the heat insulation box 12 is provided with an upper rail 40 at the upper inner peripheral edge and a lower rail 42 at the lower inner peripheral edge, between the upper and lower rails 40, 42. The front door 16 and the rear door 18 are slidably disposed.
[0004]
[Problems to be solved by the invention]
The refrigerator 10 is configured such that the cold air that has contacted the cooler 28 and exchanged heat is blown out into the storage chamber 26 from a blow-out opening 36 that is opened on the rear side of the shielding member 34. In this case, the cold air blown out from the air outlet 36 diffuses immediately and does not reach the upper part of the storage room 26 sufficiently, and the food or the like stored under the storage room 26 is supercooled, There is a problem that cooling of food and drink is not performed uniformly, such as insufficient cooling of food and drink stored in the upper side. In the refrigerator 10, food or the like is also placed on the shielding member 34, but even by the state of placement of the food or the like, the circulation of cold air is inhibited by the food or the like, There is a risk that uniform cooling of food and drinks may not be possible.
[0005]
OBJECT OF THE INVENTION
The present invention has been proposed in order to suitably solve the above-mentioned drawbacks inherent in the cold air outlet structure of a refrigerator according to the prior art, and improves the circulation efficiency of the cold air in the storage room. An object of the present invention is to provide a cold air blowing structure for a refrigerator that can uniformly cool food and drink.
[0006]
[Means for Solving the Problems]
In order to solve the above problems and achieve the intended purpose, the cold air blowing structure of the refrigerator according to the present invention includes:
Inside the box, a cooling chamber is defined below the shielding member provided on the box, and a storage chamber is defined above, and the shielding member is configured to exchange cold air heat exchanged with a cooler disposed in the cooling chamber. In the refrigerator configured to blow out from the outlet opened in the storage room,
An air guide that is detachably attached to the air outlet and guides the cool air blown from the air outlet upward;
The air guide is configured to be fitted by fitting a fitting portion formed at a lower end portion of the air guide to the air outlet.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, the cold air blowing structure of the refrigerator according to the present invention will be described below with reference to the accompanying drawings by giving a preferred embodiment. In addition, about the member already shown by the prior art, the same code | symbol is attached | subjected and the detailed description is abbreviate | omitted.
[0008]
1 to 4 show a cold air blowing structure of a refrigerator according to an embodiment of the present invention, in a cooling chamber 32 defined below a shielding member 34 disposed inside the heat insulating box 12. Is arranged at a substantially central position in the width direction of the heat insulating box 12 in a posture in which the cooler 28 directs the air suction side to the front side and the air blowing side to the rear side. A blow-out space 60 communicating with a blow-out port 36 described later is defined on the rear side of the cooler 28, and the internal fan 30 is disposed in the blow-out space 60. That is, by rotating the internal fan 30, the cool air exchanged with the cooler 28 is blown out from the blow-out space 60 to the storage chamber 26 defined above the shielding member 34 through the blow-out port 36. Composed. The suction port 35 is formed on the front side of the shielding member 34 so that the air on the front side in the storage chamber 26 is sucked into the cooling chamber 32 on the front side of the cooler 28 through the suction port 35. It has become.
[0009]
On the rear side of the shielding member 34, a rectangular air outlet 36 extending in the width direction in the vicinity of the inner rear wall 12a of the heat insulating box 12 is provided. The air outlet 36 is defined by an image wall body 44 that rises at a predetermined height along the rear rear wall 12a, and an air guide 46 having a predetermined height dimension can be attached to and detached from the image wall body 44. Installed.
[0010]
The air guide 46 is formed in a plane U shape in which both end portions in the width direction (front left and right direction) of the horizontally long rectangular plate material are bent substantially at right angles toward the inner rear wall 12a, The dimension between the outer sides of the left and right bent pieces 48, 48 is set so as to substantially match the inner diameter dimension in the width direction at the outlet 36. The front and rear dimensions of each bent piece 48 are set so as to substantially match the inner diameter dimension of the air outlet 36 in the front and rear direction. Further, as shown in FIG. 4, an inverted L-shaped locking piece 50 that is bent in an inverted L shape and extends a predetermined length in the width direction is provided at the lower front end portion of the air guide 46. Is bent so as to protrude forward by a predetermined length. The projecting dimension of the locking piece 50 toward the front side is set to be substantially the same as or slightly wider than the thickness dimension of the wall forming the painting wall body 44. That is, both the left and right lower end portions 46a, 46a sandwiching the locking piece 50 in the air guide 46 are inserted into the air outlet 36 from above, and the locking piece 50 faces the front side (outside) of the painting wall body 44. As a result, the air guide 46 is attached to the air outlet 36. In the embodiment, a fitting portion 51 is constituted by the locking piece 50 and the lower end portions 46a, 46a on both sides, and the fitting portion 51 is detachably fitted to the air outlet 36.
[0011]
Here, the air guide 46 is set to a height that allows the cool air blown out from the air outlet 36 to flow stably upward without immediately diffusing, whereby the cool air is allowed to flow into the storage chamber 26. It is constituted so that it can circulate efficiently to the upper side of the. Further, when food or drink is placed on the shielding member 34, a cold air passage is secured by an air guide 46 on the back side (between the inner rear wall 12 a) of these food and drink, The cold air blowout is not hindered.
[0012]
A plurality of supporting step portions 52, 52 are formed on the inner side walls on both sides in the width direction of the heat insulating box 12 defining the storage chamber 26, with a predetermined interval therebetween in the vertical direction. A shelf network 38 for placing food and drink is placed thereon. A stopper 54 is disposed at the rear end of the shelf net 38 so as to rise upward at a predetermined height and extend over the entire length in the lateral direction. The stopper 54 is placed on the shelf net 38. The rearward movement of the food and drink that has been performed is regulated, and a cold air passage 56 through which the cold air blown from the air guide 46 flows between the food and the like and the inner rear wall 12a of the heat insulation box 12 is provided. It works to ensure.
[0013]
[Effect of the embodiment]
Next, the operation of the cold air blowing structure of the refrigerator according to the embodiment will be described below. When the internal fan 30 is rotated, the air on the front side of the storage chamber 26 is sucked into the front side of the cooling chamber 32 through the suction port 35. This air contacts the cooler 28 that is cooled by a refrigeration mechanism (not shown), is heat-exchanged to become cold air, and flows from the blowing space 60 toward the blow-out port 36. The cool air is guided by the air guide 46 attached to the air outlet 36 and flows upward by a predetermined height, and then blown out from the guide 46 to the storage chamber 26. The cool air blown into the storage chamber 26 rises through the cool air passage 56 defined between the stopper 54 of the shelf network 38 and the inner rear wall 12a of the heat insulation box 12, and then the heat insulation box 12 A cycle that moves forward along the ceiling surface of the cabinet and flows downward along the rear surfaces of the front door 16 and the rear door 18 and then returns to the cooling chamber 32 through the suction port 35 is repeated repeatedly. To do.
[0014]
That is, since the air guide 46 is attached to the air outlet 36, the cold air blown from the air outlet 36 is not diffused immediately, but is stably guided upward by the air guide 46. Cold air can be circulated throughout the chamber 26. Thereby, it is possible to prevent the food and drink stored in the lower side of the storage room 26 from being overcooled and the cooling of the food and drink stored in the upper side from being insufficient. Uniform cooling is achieved. Further, since the air guide 46 has only the fitting portion 51 fitted to the air outlet 36, the air guide 46 can be easily removed without using a tool or the like when cleaning the storage chamber 26 or the like.
[0015]
Even when food or drink is placed on the shielding member 34, a cold air passage is secured by the air guide 46. Therefore, the cold air flows upward depending on the state of placing the beverage or the like. Is not hindered, and the cool air smoothly circulates throughout the storage chamber 26.
[0016]
[Example of change]
FIG. 5 shows a modified example of the air guide, and only different portions from the above-described embodiment will be described. In the air guide 61 of the modified example, a notch 62 extending in the front-rear direction is formed in each of the bent pieces 48, 48 at a position above the fitting portion 51, and a portion facing between the notches 62, 62. The upper side is bent at a predetermined angle toward the rear side. The bending angle on the upper side of the air guide 61 is such that when the air guide 61 is mounted on the air outlet 36 via the fitting portion 51, the rear surface on the upper end side of the guide 46 is the air guide 61 itself. Is set to abut against the inner rear wall 12a.
[0017]
That is, in a state where the air guide 61 is mounted on the air outlet 36, the lower side of the guide 61 is positioned on the painting wall body 44 by the fitting portion 51, and the upper side is positioned in contact with the inner rear wall 12a. The Therefore, when mechanical vibration is transmitted to the air guide 61 by starting the compressor or the like disposed in the machine room 14, generation of vibration sound (so-called chatter sound) accompanying this is suitably suppressed. Since the air guide 61 can be easily attached to and detached from the outlet 36 as in the above-described embodiment, cleaning of the storage chamber 26 and the like is easy. In addition, as a material of the air guide 61, a metal, resin, etc. are employ | adopted.
[0018]
【The invention's effect】
As described above, in the cool air blowing structure of the refrigerator according to the present invention, since the cold air discharged from the blow outlet can be spread to the upper side of the storage room by the air guide, the entire storage room is uniformly cooled. It is possible to achieve uniform cooling of the stored food and drink. Further, since the air guide is detachably attached to the air outlet through the fitting portion, it can be easily removed when cleaning the storage chamber or the like. Further, by configuring the upper end side of the air guide to abut against the inner rear wall of the box, the guide can be stably mounted and the generation of vibration noise and the like can be suppressed.
[Brief description of the drawings]
FIG. 1 is a schematic longitudinal sectional front view showing a refrigerator employing a cold air blowing structure according to a preferred embodiment of the present invention.
FIG. 2 is a schematic longitudinal sectional side view showing the refrigerator according to the embodiment.
FIG. 3 is a longitudinal sectional side view of a main part of the refrigerator showing the location of the air guide according to the embodiment.
FIG. 4 is a schematic perspective view showing a state in which a shielding member and an air guide are disassembled.
FIG. 5 is a longitudinal sectional side view of a main part of a refrigerator showing the location of an air guide according to a modified example.
FIG. 6 is a schematic longitudinal sectional front view showing a refrigerator employing a cold air blowing structure according to a conventional technique.
FIG. 7 is a schematic longitudinal side view showing a refrigerator according to a conventional technique.
[Explanation of symbols]
12 heat insulation box (box), 12a inner rear wall, 26 storage room, 28 cooler 32 cooling room, 34 shielding member, 36 outlet, 46 air guide, 51 fitting part 61 air guide

Claims (2)

Inside the box (12), a cooling chamber (32) is defined below the shielding member (34) provided on the box (12), and a storage chamber (26) is defined above, and the cooling chamber (12) is defined. In the refrigerator configured to blow the cold air exchanged with the cooler (28) disposed in the chamber (32) into the storage chamber (26) from the outlet (36) opened in the shielding member (34),
An air guide (46, 61) that is detachably attached to the air outlet (36) and guides the cool air blown from the air outlet (36) upward,
The air guide (46, 61) is configured to be fitted by fitting a fitting portion (51) formed at a lower end portion thereof into the air outlet (36). Blowout structure. The air outlet (36) is opened close to the inner rear wall (12a) of the box (12), and the air guide (61) is located above the fitting portion (51). The cold air blowing structure for a refrigerator according to claim 1, wherein when the air guide (61) is attached to the air outlet (36), an upper end portion thereof is bent so as to contact the inner rear wall (12a).

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