JP2000258035A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a cooling efficiency of a cooler by disposing the cooler arranged in a cooling chamber at a position deviated to a front door side opened in front of a heat insulation case. SOLUTION: A cooler 23 is disposed at a position deviated to a front door 20 side of the state that an opening 14a is closed to the center of a width wise direction of a heat insulation case 14 at an inner bottom of the case 14. The cooler 23 is disposed in an attitude in which its air suction side is directed toward a front side and its air outlet side is directed toward a rear side. A cooling chamber 25 of the case 14 is formed to integrally form a rear protrusion 26 extended to the vicinity of corresponding right and left side rear parts of the cooler 23 at a rear side of both the opposed right and left inside surfaces, and an air outlet space S is formed at an air outlet side of the cooler 23. Thus, the air inlet or the air outlet to the cooler 23 can be conducted without resistance, and hence the cooling efficiency of the cooler 23 can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator,
More specifically, a cooler that cools the storage chamber defined inside the heat-insulating box is biased toward the front door that opens and closes the opening of the heat-insulating box to improve cooling efficiency. The present invention relates to a refrigerator as described above.

[0002]

2. Description of the Related Art In a grocery store or a convenience store,
A refrigerated showcase (refrigerator) for storing and displaying foods and beverages in a refrigerated state is suitably used. This refrigerated showcase has a storage room for storing display items such as food and beverages inside a heat-insulated box body filled with a foamed heat-insulating material such as urethane between the interior and exterior, And a cooling chamber for accommodating the internal fan are defined in a vertical relationship via a shielding plate. In the shielding plate, a suction port communicating the storage chamber and the cooling chamber is formed on the front side, and an air outlet is formed on the rear side,
By rotating the fan in the refrigerator, the room air sucked into the cooling chamber from the suction port of the shielding plate is brought into contact with the cooler to be cooled, and then blown out to the storage chamber through the outlet of the shielding plate. It is configured to cool the storage room.

At the front of the heat-insulating box, a rectangular opening which opens forward is opened, and an upper rail and a lower rail are provided at an upper part and a lower part of an inner periphery of the opening. A front door and a rear door are slidably disposed in a front-to-back relationship, and the two doors open and close the opening. In the storage room, a shelf network is provided in a multi-tiered manner up and down, and display items are placed on the shelf network.

[0004]

In the refrigerated showcase, in order to store a large number of items to be displayed in the storage room, the front end of the shelf network is arranged close to a rear door located on the indoor side. I have. In this case, when the display items are placed near the front end of the shelf net, the display items block the cool air passage, and the air is efficiently sucked into the cooling chamber from the suction port formed on the front side of the shielding plate. Be inhibited. However, on the rear side (indoor side) of the front door located on the outdoor side, there is a space that allows the rear door to slide, but the cooler and the suction port are arranged at substantially the center in the width direction of the heat insulating box. Therefore, the efficiency of suction from the space was not sufficient.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks inherent in the prior art, and has been proposed to solve the problem suitably. It is an object of the present invention to provide a refrigerator in which a cooling device is arranged to be biased on the front door side to improve cooling efficiency in the cooling device.

[0006]

SUMMARY OF THE INVENTION In order to overcome the above-mentioned problems and achieve the intended object, a refrigerator according to the present invention comprises an insulating box having an opening opening forward, and a front and rear opening provided in the box. A front door and a rear door, which are respectively slidably disposed in relation to each other, and open and close the opening, and a storage chamber defined in a vertical relation through a shielding member disposed inside the heat insulating box. A cooling chamber, comprising a cooler and a fan in the refrigerator disposed in the cooling room, and by rotating the fan in the refrigerator, the air sucked from the storage room into the cooling room is heat-exchanged by the cooler and then into the storage room. In a refrigerator that blows out and circulates, the cooler is arranged so as to be biased toward a front door that closes the opening.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a refrigerator according to the present invention. As shown in FIGS. 2 and 3, a refrigerated showcase 10 as a refrigerator according to the embodiment includes a heat insulating box 14 in which a foam insulating material such as urethane is filled between an interior and an exterior, and the box 14. Is basically composed of a chassis 15 on which the. Further, a refrigeration mechanism 17 is housed in a machine room 16 defined inside the chassis 15. A rectangular opening 14a that opens forward is formed at the front of the heat-insulating box 14, and the upper and lower inner circumferences of the opening 14a extend over the entire length in the width direction (lateral direction). An upper rail 18 and a lower rail 19 made of synthetic resin are arranged correspondingly. The front door 20 and the rear door 21 are supported between the rails 18 and 19 so as to be slidable in the width direction in a front-rear relationship, so that the opening 14a can be opened and closed. The width of the front door 20 and the rear door 21 is determined by the opening 14a.
Is set longer than the width of the door by a predetermined length.
In a state where the opening 14a is closed at 1, one side in the width direction of the two doors 20 and 21 overlaps at substantially the center of the heat insulating box 14 in the width direction. Opening 1 by both doors 20, 21
4a, in the closed state, inside the front door 20 located outside the room
On the (indoor side), a space is provided to allow the rear door 21 to slide. In the refrigerated showcase 10 of the embodiment, the right front half of the opening 14a is
0 is closed, and the left half is closed by the rear door 21.

As shown in FIG. 3, a first shielding plate (shielding member) 31 to be described later is provided inside the heat insulating box 14.
A storage room 22 for refrigeration of foods and beverages is defined above, and a cooler 23 for circulating and supplying a refrigerant from the freezing mechanism 17 and a fan 24 for circulating cool air are provided below. A cooling chamber 25 is defined. Storage room 22
A plurality of shelves 34 for orderly placing and displaying items such as foods and beverages are provided via support step portions 35, 35 formed on both inner side surfaces in the width direction inside the heat insulating box 14. They are arranged in multiple stages. At the rear end of the shelf net 34,
A stopper 38 that rises at a predetermined height and extends over the entire length in the width direction is disposed above the stopper 38.
Functions to regulate the rearward movement of the display items placed on the shelf network 34 and to secure a rear cool air passage W between the display items and the inner rear surface of the heat insulating box 14. In addition, the supporting step 35,
As shown in FIG. 3, the front end of the shelf network 34 placed between the 35 is set to be close to the rear surface of the rear door 21 located on the indoor side, and many display items are placed on the shelf network 34. It is configured so that it can be placed.

On the inner bottom surface of the heat insulating box 14, as shown in FIG. 1, the cooler 23 is closed before opening the opening 14a with respect to the center of the heat insulating box 14 in the width direction. Door 2
It is arranged at a position biased toward the zero side (right side in the figure). This cooler 23 has its air suction side directed forward,
It is arranged with the air blowing side facing rearward. In addition, the cooling chamber 25 of the heat insulating box 14 is defined at the rear side of the left and right inner surfaces facing each other, and the corresponding left and right side rear of the cooler 23 disposed at a position biased to the front door 20. The rear protruding portions 26, 26 extending to the vicinity are integrally formed, and the cooler 2
A blow-out space S1 is defined on the blow-out side (rear side) of _{No. 3} .
Then, the outlet space S _1, the in-compartment fan 24
But accommodated in a posture for blowing air (cool air) sucked from the front side toward the rear side through the mounting member 27 is disposed, the cold air in contact with heat exchanger and the cooler 23, from the air space S ₁ Room 2
2 The inside fan 24
Is disposed at the center in the width direction of the heat insulating box 14 so that the blowing of cool air into the storage chamber 22 is not biased to the left and right.

On both inner side surfaces of the heat insulating box 14, front protruding portions 28, 28 protruding inward by a predetermined length shorter than the protruding length of the rear protruding portions 26, 26 on the inner side are provided. Protrusion 2
6, 26 are integrally connected so as to extend a predetermined length forward from the front side. The upper surfaces of the rear protruding portion 26 and the front protruding portion 28 are provided on the upper surface of the cooler 23.
The first shielding plate 31 is set between the projections 26, 26, 28, 28 so as to be substantially at the same level as the upper surface of the first shielding plate 31.
Are detachably mounted. The front ends of the front projections 28 are set to be located a predetermined length behind the front end of the heat insulating box 14. As described above, since the cooler 23 is arranged to be deviated to the right, a sufficient space is defined between the front projection 28 on the left side and the cooler 23. The piping 36, the wiring 37, etc. of the container 23 are arranged collectively.

As shown in FIGS. 6 and 7, the first shielding plate 31 has a rectangular flat plate portion 31a and a vertical portion 31b formed at the front end of the flat plate portion 31a by bending downward at a right angle.
And a plurality of outlets 31 formed at the rear end of the flat plate portion 31a.
c is basically constituted by a horizontal projection 31d in which a hole is formed. The first shielding plate 31 has the left and right edges of the flat plate portion 31a placed on the upper surfaces of the front and rear step portions 26 and 28.
(See FIG. 4), the storage chamber 22 and the cooling chamber 25 are defined. The vertical portion 31b of the first shielding plate 31
As shown in FIGS. 3 and 5, the front projections 28 are bent along the front ends of the front projections 28 and 28 so as to extend to the inner bottom surface, and between the vertical portion 31 b and the front and rear doors 20 and 21. defining a suction space S _2. The vertical portion 31b is provided with a plurality of suction ports 31e at positions biased toward the front door 20 with the opening 14a closed (FIG. 7).
See), configured to communicate with each other through the suction plug mouth 31e and the cooling chamber 25 and the suction space S ₂ which is defined by the first shielding plate 31.

The upper part of the suction space S ₂ is closed by a second shielding plate 32. The second shielding plate 32 includes a rectangular flat plate portion 32a which can substantially cover the upper part of the suction space S _2, and the inclined portion 32b which is bent formed obliquely downward forward to the front end of the plate portion 32a , Flat plate part 32
a vertical portion 3 bent at a right angle downward at the rear end of a
2c. And the inclined part 32b
Receiving end 1 formed on the rear surface of the lower rail 19
9a, and by engaging a plurality of notches 32d formed in the vertical portion 32c with corresponding engagement protrusions 33 provided in the vertical portion 31b of the first shielding plate 31 (see FIG. 2),
The second shielding plate 32 is disposed with the flat plate portion 32a at substantially the same level as the flat plate portion 31a of the first shielding plate 31.
Further, a plurality of suction ports 32e are formed in the flat plate portion 32a of the second shielding plate 32 over substantially the entire surface thereof (see FIG. 4). inlet 32e, configured to flow into the cooling chamber 25 through the suction port 31e of the suction space S ₂ and the first shield plate 31.

[0013]

Next, the operation of the refrigerated showcase according to the embodiment will be described. When rotating the in-compartment fan 24, the front side of the air in the storage chamber 22, after being sucked into the suction space S ₂ from the suction port 32e of the second shield plate 32, the suction of the first shielding plate 31 It is sucked into the cooling chamber 25 from the port 31e. The air is cooled by contacting the cooler 23 cooled by the refrigeration mechanism 17, and then from the outlet space S ₁ to the rear side of the storage chamber 22 through the outlet 31 c of the first shielding plate 31. To be blown out. The cool air blown to the rear side of the room rises through a rear cool air passage W defined between the stopper 38 of the shelf net 34 and the inner rear face, and the shelf net 3
The display items placed on 4 are cooled. In addition, the cool air flowing forward along the ceiling surface is dissipated by the front door 20 and the rear door 21.
After flowing down along the rear surface of the suction port 32 again.
The cycle of returning to the cooling chamber 25 via e and 31e is repeated.

Here, when the display items are placed on the shelf net 34 to the front end, the flow of the air descending along the rear surfaces of the doors 20, 21 is blocked. However, since a space is defined between the rear surface of the front door 20 and the front end of the shelf net 34 with a width that allows the rear door 21 to slide, the flow of air is allowed through the space. . Refrigerated showcase 10 of the embodiment
In this case, since the suction port 31 e of the first shielding plate 31 and the cooler 23 are biased toward the front door 20 with the opening 14 a closed, the air flows down along the rear surface of the front door 20. The generated air can be efficiently sucked into the cooling chamber 25 and the air can be efficiently cooled by the cooler 23.
In addition, since the in-compartment fan 24 is disposed at the center in the width direction of the heat-insulating box 14, the cool air cooled by the cooler 23 is blown out into the storage chamber 22 right and left (in the width direction). In this case, the entire storage chamber 22 can be uniformly cooled.

In the cooling chamber 25, the cooler 2
3 is offset to the right, so the left front projection 2
A sufficient space can be defined between the cooling device 8 and the cooler 23, and the piping 36, the wiring 37, and the like of the cooler 23 can be collectively disposed in this space.

In the embodiment, the case where the storage chamber is defined on the upper side and the cooling chamber is defined on the lower side inside the heat insulating box is described. However, the storage chamber is defined on the lower side and the cooling chamber is defined on the upper side. It may be something. In addition, as for the flow of the cool air, a configuration in which the air flows from the front side to the rear side may be opposite to the configuration in which the air flows from the rear side to the front side as in the embodiment. And in this case,
Since the space that allows the flow of air in the storage room faces the air blowout side of the cooler, the blowing of cool air from the cooler is efficiently achieved without resistance, and the storage room can be efficiently cooled.

[0017]

As described above, according to the refrigerator according to the present invention, the cooler is biased on the front door side where a space allowing the rear door to slide is defined on the rear side. The suction efficiency can be improved. That is, even if the display items are stored up to the rear surface of the rear door in the storage room,
Since a space allowing air circulation is secured behind the front door, air can be sucked into the cooler or cool air can be blown out without any resistance, and the cooling efficiency of the cooler can be improved. In addition, a suction member is formed in the shielding member that defines the storage room and the cooling room so as to be biased toward the front door that closes the opening of the heat insulating box, and air in the storage room is introduced into the cooling room from the front side. In the case of a configuration in which air is sucked, air is efficiently sucked into the cooling chamber via the space secured behind the front door, and the cooling efficiency of the cooler is improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional plan view of a refrigerated showcase according to an embodiment of the present invention.

FIG. 2 is a front view showing the refrigerated showcase of the embodiment with a part thereof cut away.

FIG. 3 is a side view showing a part of the refrigerated showcase of the embodiment in a longitudinal section.

FIG. 4 is a cross-sectional plan view showing the refrigerated showcase of the embodiment with a shielding plate and a shelf net partially cut away.

FIG. 5 is a vertical sectional side view showing a main part of a cooling chamber in the refrigerated showcase of the embodiment.

FIG. 6 is a plan view showing a first shielding plate of the example.

FIG. 7 is a front view showing a first shielding plate of the embodiment.

[Explanation of symbols]

Reference Signs List 14 Insulated box, 14a opening, 20 front door, 21 rear door, 22 storage room 23 cooler, 24 internal fan, 25 cooling room, 31 first shielding plate (shielding member) 31e suction port

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshinori Tanaka 3-16 Hoshizaki, Sakaemachi Minamikan, Toyoake City, Aichi Prefecture Inside (72) Inventor ▲ Yoshi ▼ Akira Yoshida 16-16 Hoshizaki, Sakamachi Town, Toyoake City, Aichi Prefecture Electric Co., Ltd.

Claims (2)

[Claims] 1. A heat insulating box (14) having an opening (14a) that opens forward, and the heat insulating box (14) is slidably disposed in a front-back relationship with the box (14). Opening and closing the front door (20)
And a storage chamber (2) defined in a vertical relationship via a rear door (21) and a shielding member (31) disposed inside the heat-insulating box (14).
2) and a cooling chamber (25), a cooler (23) and a fan (24) disposed in the cooling chamber (25), and a storage chamber is formed by rotation of the fan (24). (22) In a refrigerator in which air sucked into the cooling chamber (25) is heat-exchanged by the cooler (23) and then blown out and circulated to the storage chamber (22), the cooler (23) is
A refrigerator characterized in that the refrigerator is arranged so as to be biased toward the front door (20) that closes the opening (14a). 2. The refrigerator according to claim 1, wherein the shielding member (31) is provided with a suction port (31e) biased toward the front door (20) that closes the opening (14a).