JPH08192890A - Cold storage case - Google Patents

Abstract

PURPOSE: To cool frozen goods and cold-storage goods of different cooling temperatures at a required temperature by a method wherein cold-storage goods are stored in a case with a door, and the case is put in a freezing chamber and subjected to a temperature control. CONSTITUTION: Cold-storage goods are stored in a case 1, and a door 2 is closed. The case 1 is set to a required temperature by a temperature indicating device 14 and put in a low-temperature freezer. When a temperature in the case 1 is higher than the set temperature, a cold air suction hole-blocking door 8 is opened, an air blow fan is actuated, and cold air in a cold air storage part 6 radiationally cooled through a cold air intake part 3 is fed through a cold air suction hole 7 to lower the temperature in the case 1. Men the temperature in the case 1 is lowered to the set temperature or thereabouts, the cold air suction hole-blocking door 8 is closed to interrupt intrusion of cold air. If the case 1 is left in the low-temperature freezer for a long time, the temperature in the case 1 is lowered even though the inside of the case 1 is isolated. When the temperature is lowered to the set temperature or lower, the case temperature indicating device 14 is actuated to actuate an electric heater 10, and hot air is fed by an air blow fan 11 to keep the inside of the case 1 at the set temperature.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frozen warehouse, particularly an automobile for transporting frozen materials, a container or the like having a different cooling temperature, or a product which cannot be mixed due to an odor even if the cooling temperature is about the same temperature. It is carried by one refrigeration car.

[0002]

2. Description of the Related Art Freezers and refrigerators currently installed in automobiles are divided into a refrigerating car that cools below -10 ° C to 20 ° C and a refrigerating car that keeps between -5 ° C and plus 5 ° C. It is made and it can be adjusted to less than -20 ° C from about 5 ° C. Recently, the room is divided into two parts from the beginning and separate coolers are used to keep the temperature in the freezer and refrigerating room. Although there are differences, there is no one room that can store and transport frozen and refrigerated items with different cooling temperatures at the same time. Even if the cooling temperature is about the same,
Items that emit odors or those that do not allow odors to be attached cannot be mixed, so even if the items are not fully loaded, more than one refrigerating or refrigerating vehicle is running for delivery on the same course.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
A case is installed in a freezer that has been cooled to ° C to 20 ° C or less, and the refrigerated product is stored by keeping the temperature in the case higher than that in the freezer. In the case of 1, the temperature inside the case is lowered close to the same temperature as the inside of the freezer, but the case is sealed to prevent generation and attachment of odor. In this way, products with different cooling temperatures, odors, and products that are difficult to attach are put in a single freezer in each case, mixed, and simultaneously transported.

[0004]

The present invention will be described with reference to the drawings. In FIG. 1, a case 2 is attached with a door 2 to insulate the inside of the case 1. However, since the cool air by radiative cooling is taken into the case 1, the heat insulation is performed. The cold air intake part 3 which does not apply is installed.

FIG. 3 shows the state of the cold air intake portion and the inside of the case. Although the heat insulating material 5 is attached to the inside of the exterior plate 4 of the case 1, the heat insulation is not performed and radiation cooling is performed through the exterior plate 4. 3 is provided with a cold air intake part 3
A cold air storage space portion 6 is provided on the inner side of the cold air intake hole 7, and the cold air intake hole 7 is made smaller than the area of 3 by another heat insulating material 5 '. The air intake passage 13 is communicated with the cold air storage portion 6 from inside the case 1. A cold air closing door 8 is attached to the cold air suction hole 7, and the closing door 8 is opened and closed by a closing door actuator 9. An electric heater 10 and a blower fan 11 are installed, and a temperature indicator 14 attached to the outside of the case 1, a cool air shut-off door actuator 9, an electric heater 10 and a blower fan 11 are connected by a cord, and a thermometer attached to the case 1. To send an electric current to operate. If necessary, the cover 12 is attached to the installed instrument.

The area of the cold air intake hole 7 is smaller than that of the cold air intake portion 3 because the cold air shut-off door 8 can be made smaller. The operation of the cold air hole closing door 8 is the same as long as it slides, whether it is a rotary type or an open / close type, as long as it blocks the entry of cold air.

Even if the cold air suction hole 7 is made to have the same size as the cold air intake portion 3 as shown in FIG. 4 and the cold air suction hole closing door 8 is enlarged, the same effect can be obtained, and as shown in FIG. The same effect can be obtained by fitting the cold air shielding door 8 with heat insulation.

As shown in FIG. 2, the cold air intake portion 3 may be expanded to the inside of the case 1 to increase the area.

[0009]

The refrigerating material is stored in the case 1, the door 2 is closed, the temperature indicating device 14 is set to the required temperature, and the refrigerating material is put in a low temperature freezer. When the temperature inside the case 1 is higher than the set temperature, the cold air suction hole blocking door 8 is opened, the blower fan is operated, and the cold air storage portion 6 cooled by radiative cooling by the cold air intake portion 3
The cold air is sent into the case 1 through the cold air suction hole 7 to lower the temperature in the case 1. Since the air is sucked by the blower fan 11, the air is sent from the air intake passage 13, so that the cool air is sucked in well. When the inside of the case 1 is lowered to around the set temperature, the cold air suction hole blocking door 8 is closed and the invasion of cold air is stopped. Even if the inside of the case 1 is thermally insulated, the temperature of the case 1 drops if it is kept in a low-temperature freezer for a long time. The electric heater 10 is operated by the operation of the case temperature indicating device 14 below the set temperature, and warm air is sent by the blower fan 11 to keep the inside of the case 1 at the set temperature.

When an item that requires the same temperature as in the freezer is stored in the case, it is put in the freezer.
Set to the same temperature as in the freezer or leave the cold air intake hole open. Cool the inside of Case 1 to near the same temperature as the freezer.
At this time, since the case 1 is hermetically sealed, the odors of other items do not adhere and the odors in the case 1 do not diffuse, so that it is possible to mix and carry the items with a strong odor.

The temperature in the freezer mentioned here does not specify the temperature generally lower than -10 ° C, but it can be used even at -10 ° C or lower, but it means the lowest temperature of the items to be stored. Is. For example, minus 5 ° C,
When mixing 0 ° C and plus 5 ° C items together, set the inside of the freezer to minus 5 ° C and store the minus 5 ° C items directly in the freezer, but put them in a case to block odors. It is also possible to put the 0 ° C and + 5 ° C items in their respective cases and set the temperature. When the product is 0 ° C, plus 5 ° C, or plus 10 ° C, set the inside of the freezer to 0 ° C.

[0012]

Example: A case with an internal volume of 80 liters and a width of 15
The area of 15 cm in length and 15 cm in height was used as the cold air intake section 3 without heat insulation. The case as shown in FIG. 3 was set at a temperature of 0 ° C. and put in a freezer at minus 27 ° C. The temperature in case 1 was 10 ° C before it was put in the freezer.
It approached 0 ° C in a minute. Therefore, cold air intake hole 8
Was closed, but after 15 minutes, the temperature dropped to minus 2 ° C, the electric heater was activated, and the inside of Case 1 was kept between 0 ° C and minus 2 ° C. The same was true when set at plus 5 ° C and minus 5 ° C.

Minus 27 at + 5 ° C inside case
It was placed in a freezer at ° C and the cold air intake hole was left open. After 20 minutes, the temperature dropped to around minus 27 ° C. Since it was hermetically sealed, no odor was emitted even if an item with a strong odor was placed in the case, and there was no problem in storing different types of items in one freezer.

[0014]

According to the present invention, frozen and refrigerated items having different cooling temperatures can be put in a case and cooled at a required temperature, so that they can be transported by one refrigerating vehicle. Even if the cooling temperature is the same, it becomes possible to mix and place items that are difficult to emit odors and put into a case.

[Brief description of drawings]

FIG. 1 is a schematic view of an external appearance of a refrigerating case of the present invention.

FIG. 2 is a schematic view showing a state in which a cold air intake portion of the refrigerating case of the present invention is extended into the case.

FIG. 3 is a schematic view showing a configuration in which a cooling air intake hole is made small in a device for cooling and heating a refrigerating case of the present invention.

FIG. 4 is a schematic view showing a configuration in which a cooling air intake hole is not downsized in a device for cooling and heating a refrigerating case of the present invention.

FIG. 5 is a device for cooling and heating a refrigerating case of the present invention,
The schematic diagram which showed the structure which fits the heat insulation board in the cold air intake part which lost heat insulation, and prevents invasion of cold air.

[Explanation of symbols]

 1 ………… Refrigerator case 2 ………… Case door 3 ………… Cold air intake section 4 ………… Exterior plate 5 ………… Insulation material 5 ′ ……… Internal insulation plate 6 ………… Cold air storage section 7 ………… Cold air suction hole 8 ………… Cold air suction hole Closing door 9 ………… Closing door actuator 10 ………… Electric heater 11 ………… Blower fan 12 ………… Instrument storage cover 13 ……… Air intake passage 14 ……… Temperature indicator 15 ……… Thermometer

Claims (2)

[Claims] 1. A door 1 is attached to a case 1, a case 1 is thermally insulated, a cold air suction portion 3 not provided with heat is provided, and cold air that is radiatively cooled and enters through a side plate is introduced into the case 1.
A refrigerating case that shuts off the intake of cold air when the temperature inside the case 1 drops near a specified temperature. 2. A door 2 is attached to the case 1, the case 1 is heat-insulated, and a cold air suction portion 3 not provided with heat is provided, and cold air that is radiatively cooled and enters through a side plate is introduced into the case 1.
When the temperature inside the case 1 falls near the specified temperature, the intake of cold air is shut off, and when the temperature inside the case 1 drops below the specified temperature, the electric heater and the blower fan installed inside the case 1 operate to A refrigerating case that keeps the inside of 1 at a specified temperature.