JPH10311651A - Cold-storage-type insulation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the quality of a frozen or refrigerated article from deteriorating due to temperature increase in an insulation room while an insulation container is being carried by forming a space for installing a spare cold-storage agent separately from the cold-storage agent in the ventilation path in the cold-storage room. SOLUTION: An opening 50 that communicates with a cold-storage room 27 being provided on the front surface of a cabinet 24 is opened and closed by a door 51, the gap between the door 51 and the cabinet 24 is sealed with a gasket 26, and a space 54 where a spare cold-storage agent 53 can be installed is formed in the ventilation path being adjacent to the door 51. When chill being accumulated in a cold-storage agent 28 during insulation operation becomes scarce and the temperature in the insulation room 33 increases, the door 51 is opened and the spare cold-storage agent 53 is loaded into the cold-storage room 27 and is installed at the space 54. Air in the container in an insulation room 33 passes through a ventilation hole 32 and enters the cold-storage room 27, is cooled in a process for flowing around the spare cold- storage agent 53, passes a cooling equipment 29 and the cold-storage agent 28, is energized by a ventilation fan 30 and is blown from the ventilation hole 32 to the insulation room 33.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerative cold storage device suitable for transporting frozen or refrigerated products such as fresh foods and pharmaceuticals while keeping the product cold.

[0002]

2. Description of the Related Art FIG. 2 shows an example of a conventional regenerative cold storage device. In FIG. 2, reference numeral 23 denotes a refrigerator, a cabinet 24 insulated by a heat insulating material, a door 25, and a door 25.
Gasket 26 that seals the gap between 25 and cabinet 24
It has.

[0003] The interior of the cool box 23 is vertically divided by a partition wall 31 having heat insulation, and a cold room 33 formed on the upper part thereof contains a frozen or refrigerated product 43 such as fresh food and medicine.
Is stored, and a refrigerator temperature sensor 41 for detecting the temperature in the cold storage room 33 is provided.

[0004] A latent heat type regenerator 28 having a freezing point lower than a preset temperature in the cold storage room 33 is provided in a regenerator 27 formed below the partition wall 31, and the regenerator 28 is cooled and solidified. A cooler 29 and a ventilation fan 30 are built in.
Is detected by the regenerator temperature sensor 38.

[0005] A refrigeration unit 37 is mounted on the cool box 23. Inside the refrigeration unit 37, a compressor 3 is mounted.
4, condenser 35, condenser fan 36, aperture mechanism 39
And so on.

[0006] When the power cord 40 is connected to a commercial power supply, charging of the rechargeable battery is started by a charger (not shown), and at the same time, the cold storage operation is started. During this cold storage operation, the refrigerant gas discharged from the compressor 34 enters the condenser 35 and radiates heat to the outside air blown by the condenser fan 36 to condense and liquefy.

This liquid refrigerant is adiabatically expanded by being throttled by a throttle mechanism 39, and then cooled and cooled by cooling a regenerator 28 in the course of flowing through a cooler 29, thereby evaporating and evaporating.
Return to 34. The temperature of the regenerator 28 drops and the regenerator temperature sensor 38
Is reached, the operation of the compressor 34 and the condenser fan 36 is stopped.

When the frozen or chilled product 39 is accommodated in the cool room 33 and the cool switch is pressed, the cool operation starts. During this cold-holding operation, the ventilation fan 30 is driven by the rechargeable battery, and the air in the refrigerator cooled by flowing around the regenerator 28 enters the cold-holding room 33 through the ventilation hole 32, and enters the cold-holding room 33. After the temperature rises in the process of flowing through, the air returns to the cold storage chamber 27 through the vent hole 32.

When the temperature in the cool room 33 decreases and the temperature detected by the temperature sensor 41 in the refrigerator reaches the set temperature, the ventilation fan 30
Is stopped. Thereafter, by repeatedly operating and stopping the ventilation fan 30, the inside of the cold storage room 33 is maintained at the set temperature. In this state, the power cord 40 is unplugged, the cool storage box 23 is mounted on a truck, and transported to a predetermined place.

[0010]

In the above-mentioned conventional cold storage device, since the amount of cold stored in the cold storage agent 28 is limited, the type and amount of the frozen or refrigerated product 43 accommodated in the cold storage room 33, Depending on the temperature, the temperature in the cold storage room 33 may increase during transportation of the cool storage 23, and the quality of the frozen or refrigerated product 43 may be degraded.

[0011]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its gist is to provide a cold storage room for cooling a frozen or refrigerated product, a cold storage agent and a cold storage agent. In a cold storage room equipped with a cooler for cooling, and in a cold storage type cold storage device including a ventilation fan for sending cold air cooled by flowing through the cold storage room to the cold storage room,
The cold storage device according to the present invention is characterized in that a space is provided in the ventilation path in the cold storage room, in which a spare cold storage agent different from the cold storage agent can be installed.

Another feature is that a door is provided for putting the spare regenerator into and out of the space in the regenerator.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIG. An opening 50 communicating with the cold storage chamber 27 is provided on the front surface of the cabinet 24, and the opening 50 is opened and closed by a door 51. The gap between the door 51 and the cabinet 24 is sealed by the gasket 26.

A space 54 in which a spare cold storage agent 53 can be installed is provided in the front of the cold storage room 27, that is, in the ventilation passage close to the door 51.
Are formed. The other configuration is the same as that of the conventional one shown in FIG. 2, and the corresponding members are denoted by the same reference numerals and description thereof will be omitted.

When the cold stored in the refrigerating agent 28 becomes insufficient during the refrigerating operation and the temperature in the refrigerating room 33 rises, the door 51 is opened and the spare refrigerating agent cooled in another freezer is opened. The door 53 is closed after the 53 is inserted into the cool storage room 27 through the opening 50 and installed in the space 54.

Thus, the air inside the refrigerator compartment 33 is vented.
After entering the cold storage room 27 through 32 and being cooled in the process of flowing around the spare cold storage agent 53, it passes through the cooler 29 and the cold storage agent 28 and is urged by the ventilation fan 30 to be vented 32 From the cooling room 43. As a result, it is possible to prevent the temperature of the frozen or chilled product 43 housed in the cold storage room 33 from rising, and to prevent the quality from being deteriorated.

[0017]

According to the present invention, when the cold energy stored in the cold storage agent becomes insufficient during the cold storage operation, a spare cold storage agent previously cooled is installed in the space formed in the ventilation path in the cold storage room. As a result, a rise in the temperature in the cool room can be prevented, so that quality deterioration of the frozen or refrigerated product can be prevented.

By providing a door for taking in and out of the spare regenerator in the space inside the regenerator, the spare regenerator can be easily taken in and out.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a cold storage type cold storage device showing an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a conventional cold storage type cold storage device.

[Explanation of symbols]

 23 Cold storage 24 Cabinet 25 Door 26 Gasket 27 Cool storage room 28 Cool storage agent 29 Cooler 30 Ventilation fan 32 Vent hole 33 Cool storage room 34 Compressor 35 Condenser 36 Condenser fan 37 Refrigeration unit 38 Cool storage agent temperature sensor 39 Throttle mechanism 40 Power cord 41 Storage temperature sensor 43 Frozen or refrigerated goods 51 Door 53 Spare regenerator 54 Space

Claims (2)

[Claims] 1. A cold storage room for cooling a frozen or refrigerated product, a cold storage room equipped with a regenerator and a cooler for cooling the same, and cold air cooled by flowing through the cold storage room is supplied to the cold storage room. A regenerative cold storage device comprising a ventilating fan for feeding, wherein a space is provided in the ventilation path in the regenerator to allow installation of a spare regenerative agent different from the regenerator. 2. The regenerative cold storage device according to claim 1, further comprising a door for taking the spare regenerator into and out of the space in the regenerator.