JP2875506B2 - Cool box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for storing fresh foods, medicines and the like which need to be kept cool and transported by a truck or other transport vehicle.

[0002]

2. Description of the Related Art Conventionally, when delivering goods such as fresh foods that need to be kept cool, goods from a client are once collected at a collection place, mounted on a transport vehicle from this collection place, and cooled while receiving the goods. A distribution system has been established to deliver the goods to a transportation vehicle. When the goods are to be mounted on a transportation vehicle, they are stored in a refrigerator beforehand, and the refrigerator is loaded on the transportation vehicle.

[0003] As a cooling structure of such a cool box, for example, a structure disclosed in Japanese Patent Application Laid-Open No. 5-296662 is known.

[0004] In this cool box, an evaporator and a cold storage agent are installed inside the cool box body, and a machine room in which a compressor, a condenser, a fan unit for the condenser and the like are installed on the ceiling of the cool box body. Provided. The condenser fan unit is driven to forcibly air-cool the condenser with outside air, and cools the regenerator by the heat of vaporization of the evaporator to keep the inside of the cold storage main body cool.

[0005]

In the condenser fan unit installed in the machine room, a fan duct for guiding the outside air is arranged around the blade in order to efficiently suck and exhaust the outside air. The fan duct guides the outside air that has exchanged heat in the condenser toward the blades, and exhausts the air to the outside through the outlet of the machine room.

Here, for example, when the cool box is to be cooled again for delivery to a remote place, the cool box is once lowered from the transport vehicle and moved again to the place where the cool operation is performed. When rainy, rainwater may enter the machine room through the outlet and accumulate in the fan duct.

However, when cooling operation is performed in a state in which rainwater is accumulated in the fan duct, the rainwater is scattered around the cool box by the blowing air of the fan of the condenser fan unit, and the cooling operation using electricity is dangerous. And the operator's clothes etc. got wet and unpleasant.

[0008] In view of the above-mentioned conventional problems, an object of the present invention is to provide:
It is an object of the present invention to provide a cool box with improved safety and workability of cool work by draining rainwater or the like that has entered a fan duct.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a machine room in which a fan unit for a condenser, which is a component of a cooling device, is mounted above a ceiling of a refrigerator box. In the cool box that surrounds the fan unit blades and has a concave fan duct outside the fan compartment facing the air outlet opening in the upper plate of the machine room, a drain port for the fan duct is provided in a part of the recess of the fan duct. It has a structure provided.

Accordingly, even if rainwater enters from the outlet and enters the recess of the fan duct, the rainwater is drained out of the fan duct through the fan duct outlet. Therefore, when the condenser fan unit is driven, the rainwater does not splash around.

Further, when the machine room has a machine room drain port, even if rain water is drained into the machine room from the fan duct drain port, the rain water is discharged to the outside through the machine room drain port.

[0012]

1 to 3 show an embodiment of a cool box according to the present invention. FIG. 1 is a sectional view of the cool box.
FIG. 2 is a plan view of the condenser fan unit, and FIG. 3 is a sectional view of the condenser fan unit.

The cool box 1 is movable and has a vertically long box-shaped cool box main body 2, and articles housed in the cool box main body 2 are formed of a heat insulating material so as not to be affected by the outside air temperature. Have been. A machine room 3 is installed on the ceiling of the cool box body 2, and a compressor 4, a condenser 5, and a fan unit 6 for the condenser are installed in the machine room 3, while a lower part of the cool box body 2 is provided. Has an evaporator 8 provided with a regenerator 7;
An evaporator fan 9 is provided, and these devices 4 to 9 constitute a cooling device.

When cooling the interior of the cool box 2 by this cooling device, the devices 4 to 8 except for the evaporator fan 9 are operated, and the outside air is blown into the machine room 3 as shown by a two-dot chain line arrow in FIG.
The air is sucked from the air suction panel 3a and passed through the condenser 5 to perform heat exchange, while the evaporator 8 exchanges heat with the cold storage agent 7 to store cold heat in the cold storage agent 7. When the cold storage is completed, only the evaporator fan 9 is operated, and the cold storage agent 7 is operated.
As shown by the dashed line arrow in FIG.
The inside air is circulated through the inside of the cool box main body 2 through the duct 10 inside, and the inside of the cool box main body 2 is cooled to a predetermined temperature by a temperature sensor or the like (not shown). When the cold storage in the cold storage main body 2 is completed, the front door 11 is opened and the cold storage main body 2 is opened.
In the interior, fresh foods and other articles are stored.
Is loaded and delivered to the transport vehicle.

The cooling and delivery of the cool box 1 as described above is not different from the conventional example, but the feature of the present invention lies in the fan duct structure of the condenser fan unit (hereinafter referred to as the fan unit) 6. . This fan duct structure will be described with reference to FIGS.

The fan unit 6 includes two fan motors 61 each including an axial-flow blade 61a and a motor 61b.
And a fan duct 62 for guiding outside air to the fan motor 61. The fan motor 61 is supported by the fan duct 62 by motor support legs 61c.

The fan duct 62 is formed in a horizontally long box shape having an open upper surface.
It is installed in. The upper surface opening 62b of the fan duct 62 is directly above the outlet 32 formed in the upper plate 31 of the machine room 3, and is disposed so as to face the outlet 32. In addition, fan duct 6
The left and right sides of the bottom plate 62c of the second suction port 62 are formed in a cylindrical shape.
Two d are provided. A wing portion 61a is disposed inside the suction port 62d so as to surround the wing portion 61d.
1a, a suction port 62d, a bottom plate 62c and a side plate 62
A recess 62f surrounded by e is formed.

A part of the recess 62f thus formed,
In this embodiment, a part of the suction port 62d is cut out in a rectangular shape to form a fan duct drain port 62g. As a result, the water that has entered the recess 62 f
g to flow out to the bottom of the machine room 3. Further, in order to discharge the water that has flowed out to the machine room 3 to the outside of the cool box 1, the machine room drain port 3
4 are formed.

As described above, in the cool box 1 according to the present embodiment, since the drainage port 62g for the fan duct is provided in a part of the recess 62f of the fan duct 62, the rainwater is discharged from the outlet 32 to the recess 62f. , This rainwater flows out to the bottom side of the machine room 3 through the fan duct drainage port 62g as shown in FIG. Thus, when the fan motor 61 is driven during the cool-preserving operation, rainwater does not scatter as in the related art.

The rainwater flowing to the bottom side of the machine room 3 is drained out of the cool box 1 through a machine room drain port 34 as shown in FIG. Various devices are not deteriorated by rainwater.

[0021]

As described above, according to the present invention,
Since the drain port for the fan duct is provided in a part of the recess of the fan duct, rainwater does not scatter as in the related art when the fan motor 61 is driven at the time of the cooling operation.

Also, since rainwater that has entered the machine room is also drained from the machine room drain port, various devices installed in the machine room are not corroded by the rainwater, and the durability is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cool box according to the present invention.

FIG. 2 is a plan view of a condenser fan unit according to the present invention.

FIG. 3 is a sectional view of a condenser fan unit according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cool box, 2 ... Cool box main body, 3 ... Machine room, 6 ... Condenser fan unit, 31 ... Upper plate, 32 ... Outlet, 3
4 ... Drain port for machine room, 61a ... Blade part, 62 ... Fan duct, 62f ... Concave part, 62g ... Drain port for fan duct.

Claims (2)

(57) [Claims] 1. A machine room in which a condenser fan unit, which is a component of a cooling device, is mounted above a ceiling of a cool box main body. The machine room surrounds a blade of the condenser fan unit and has a concave outside thereof. A cool box having a fan duct facing a blowout opening opened in an upper plate of a machine room, wherein a drain port for a fan duct is provided in a part of a recess of the fan duct. 2. The cold storage according to claim 1, further comprising a machine room drain port for discharging water discharged from the fan duct drain port to the outside of the machine room.