JPH09257358A - Cold reserving cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the safety and operability of cold reserving operation by draining rain water invaded into a fan duct. SOLUTION: This cold reserving cabinet has a machine room 3 for mounting a fan unit 6 for a condenser of the component of a cooling equipment above the ceiling of a cold reserving cabinet body 2, and a fan duct 62 having a recess 62f at the outside around the periphery of the blade 61a of the fan unit 6 for the condenser and opposed to the air outlet 32 opened at the upper plate 31 of the room 3, and comprises a drain port 62g for the duct provided at the part of the recess 62f of the duct 62. Thus, even if rain water is introduced to the recess 52f of the duct 62 from the outlet 32, the water is drained out of the duct 52 via the port 62g. Accordingly, when the fan unit 6 is driven, the rain water is not scattered to the circumference.

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 perishable food products that need to be kept cold, the goods from the client are temporarily collected at a collection place, mounted on a transport vehicle from this collection place, and cooled by the recipient. A physical distribution system for delivering the goods to the transportation vehicle has been established, and when this article is mounted on the transportation vehicle, it is stored in a cold storage box in advance and the cold storage box is loaded on the transportation vehicle.

As a cooling structure for such a cool box, for example, one disclosed in Japanese Patent Laid-Open No. 5-296642 is known.

This cool box has a machine room in which an evaporator and a cold storage agent are installed inside the cool box body, while a compressor, a condenser, a fan unit for the condenser, etc. are installed on the ceiling of the cool box body. It is provided. The condenser fan unit is driven to forcibly cool the condenser with the outside air, and the heat of vaporization of the evaporator is used to store the regenerator to keep the inside of the refrigerating box body cool.

[0005]

By the way, in the condenser fan unit installed in the machine room, a fan duct for guiding the outside air is arranged around the blades in order to efficiently suck and exhaust the outside air. The fan duct guides the outside air, which has undergone heat exchange in the condenser, toward the blades, and further discharges this air to the outside through the outlet of the machine room.

Here, for example, when the cold storage is kept cold for delivery to a remote place, the cold storage is once removed from the transport vehicle and moved again to the place where the cold storage operation is performed. If it is, rainwater may enter the machine room through the outlet and collect in the fan duct.

However, when cold-cooling operation is performed with rainwater accumulated in the fan duct, the rainwater is scattered around the cold-storage box by the wind force of the fan of the condenser fan unit, and the cold-cooling work using electricity is dangerous. In addition, the operator's clothes and the like became wet and unpleasant work.

[0008] In view of the above-mentioned conventional problems, an object of the present invention is to provide:
(EN) It is intended to provide a cool box in which rainwater or the like that has entered a fan duct is drained to improve the safety and workability of the cool work.

[0009]

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 cool box body. In a cool box where the fan duct that surrounds the periphery of the fan unit's blades and is concave outside of the fan unit faces the blowout port opened in the upper plate of the machine room, install a fan duct drainage port in a part of the fan duct recess. It has a structure provided.

As a result, even if rainwater enters through the outlet and enters the recess of the fan duct, the rainwater is drained to the outside of the fan duct through the drain outlet for the fan duct. Therefore, when the condenser fan unit is driven, this rainwater does not scatter around.

Further, when the machine room has a machine room drain port, even if rainwater is drained into the machine room from the fan duct drain port, this rainwater is discharged to the outside from 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,
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-like cool box body 2 which is formed of a heat insulating material so that the articles housed in the cool box body 2 are not affected by the outside air temperature. Has been done. Further, a machine room 3 is installed on the ceiling of the cool box body 2, and a compressor 4, a condenser 5, and a condenser fan unit 6 are installed in the machine room 3, while a lower part of the cool box body 2 is installed. An evaporator 8 to which a cold storage agent 7 is attached,
An evaporator fan 9 is installed, and these devices 4 to 9 and the like constitute a cooling device.

When the inside of the cool box main body 2 is cooled by this cooling device, the devices 4 to 8 except the evaporator fan 9 are operated, and the outside air is exposed to the machine room 3 as shown by the two-dot chain line arrow in FIG.
The air is sucked in from the air suction panel 3a and passed through the condenser 5 for heat exchange, while the evaporator 8 exchanges heat with the cool storage agent 7 to store cold heat in the cool storage agent 7. When this cold storage is completed, only the evaporator fan 9 is operated and the cold storage agent 7
As shown by the alternate long and short dash line arrow in FIG.
The inside air is circulated in the cool box body 2 through the duct 10 therein, and the cool box body 2 is kept at a predetermined temperature by a temperature sensor or the like (not shown). When the inside of the cool box body 2 is thus kept cold, the front door 11 is opened to open the cool box body 2
Items such as perishable foods are stored inside, and further, this cool box 1
To be loaded onto a transportation vehicle for delivery.

The cold storage and delivery of the cold storage 1 as described above are 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 fan unit) 6. . This fan duct structure will be described with reference to FIGS. 2 and 3.

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

The fan duct 62 is formed in the shape of a horizontally long box having an open top surface, and the duct support legs 62a form the machine chamber 3.
It is installed in. Further, the upper surface opening 62b of the fan duct 62 is a blowout port 32 formed immediately above the upper plate 31 of the machine chamber 3, and is arranged so as to face the blowout port 32 and face it. Also, the fan duct 6
A suction port 62 is formed on the left and right sides of the second bottom plate 62c in a cylindrical shape.
Two d are provided. Inside the suction port 62d, a blade portion 61a is arranged so as to surround the periphery thereof.
A suction port 62d, a bottom plate 62c and a side plate 62 are provided on the outer side of 1a.
A recess 62f surrounded by e is formed.

A part of the recess 62f formed in this way,
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 62f will not be discharged to the drain port 62.
It is designed to flow out to the bottom of the machine room 3 through g. Further, since the water that has flowed into the machine room 3 is discharged to the outside of the cool box 1, the side wall 33 of the machine room 3 has a drain port 3 for the machine room.
4 are formed.

As described above, according to the cool box 1 of the present embodiment, since the fan duct drainage port 62g is provided in a part of the recess 62f of the fan duct 62, rainwater is discharged from the outlet 32 into the recess 62f. Even if the rainwater invades, the rainwater will flow out to the bottom surface side of the machine room 3 through the fan duct drain port 62g as shown in FIG. As a result, rainwater does not scatter when the fan motor 61 is driven during the cold-keeping operation, unlike the conventional case.

Since the rainwater flowing to the bottom side of the machine room 3 is discharged to the outside of the cool box 1 through the machine room drain port 34 as shown in FIG. 3, it is installed in the machine room 3. Various equipment will not deteriorate due to rainwater.

[0021]

As described above, according to the present invention,
Since the fan duct drainage port is provided in a part of the recess of the fan duct, rainwater is not scattered when the fan motor 61 is driven during the cold insulation operation unlike the conventional case.

Further, since rainwater that has entered the machine room is also drained from the machine room drain port, various equipment installed in the machine room will not be corroded by the rainwater, and the durability will be improved.

[Brief description of 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 cross-sectional view of a condenser fan unit according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cooling cabinet, 2 ... Cooling cabinet main body, 3 ... Machine room, 6 ... Condenser fan unit, 31 ... Upper plate, 32 ... Blowout port, 3
4 ... Machine room drain port, 61a ... Blade part, 62 ... Fan duct, 62f ... Recess, 62g ... Fan duct drain port.

Claims (2)

[Claims] 1. A machine room having a condenser fan unit, which is a component of a cooling device, mounted above a ceiling of a cooler body, and surrounds a blade portion of the condenser fan unit and has a concave portion outside thereof. A cool box in which the fan duct facing the blow-out opening opened in the upper plate of the machine room is provided with a fan duct drainage port in a part of the recess of the fan duct. 2. The cool box 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.