JPH0961043A - Truck container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower ozone concentration in a container to a safe region in a short time. SOLUTION: This truck container comprises an ozone producer 3, and a freezing apparatus 4 for cooling air containing ozone produced in the ozone producer 3 circulating the air with a fan T in a box shaped container 1 for keeping fresh foods, etc. In the truck container, an exhaust hole 10 is provided in the container 1, and the exhaust hole 10 and a blow-off side of the fan 7 are communicated with each other through a duct 6. A blow-off hole 6b is formed in the duct 6 facing the inside of the container 1, and a damper 12 is provided for changing over the blow-off direction of air containing ozone flowing the duct 6 to either of an exhaust hole 10 side or a blow-off hole 6b side.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to deodorization / freezing in a freezer.
The present invention relates to a truck container equipped with an ozone generator that generates ozone having a bactericidal action.

[0002]

2. Description of the Related Art Generally, a truck container for transporting fresh foods such as fresh fish and vegetables is equipped with a refrigerating device for cooling the inside of the container to an ambient temperature or below,
It is designed to prevent the freshness of fresh food products from decreasing during transportation.

Furthermore, more recently, an ozone generator has been provided inside the container, and the action of ozone generated from the ozone generator has been utilized to maintain the freshness of fresh food products and simultaneously deodorize and sterilize the inside of the container. Something like that is proposed.

[0004]

By the way, in order to effectively carry out such deodorization and sterilization by ozone, the ozone concentration inside the container must be set high, but this set concentration is toxic to the human body. Yes, 0.1p
When it is pm or more, it has an adverse effect on the worker, and therefore, when carrying in and out the cargo inside the container, it is necessary to wait until the ozone is naturally decomposed and the concentration is lowered, resulting in poor workability. Therefore, as in Japanese Patent Laid-Open No. 64-25865, a method of installing an ultraviolet ray generating lamp inside the container and accelerating the decomposition rate of ozone by ultraviolet rays of 254 nm emitted from this can be considered. There is an inconvenience that it cannot be used for perishable foods that are easily affected by. In addition, JP-A-3
It is conceivable to forcibly decompose ozone by using an ozone decomposition catalyst as in Japanese Patent Publication No. 146113, but if this is done, a space for installing this is required and the ozone concentration falls to a safe range. However, there is a drawback that it takes some time.

Therefore, the present invention has been devised in order to effectively solve such a problem, and its purpose is to provide a novel truck container capable of lowering the ozone concentration in the container to a safe range in a short time. Is provided.

[0006]

In order to solve the above problems, the present invention includes an ozone generator and ozone generated by the ozone generator in a box-shaped container for storing fresh foods and the like. In a truck container equipped with a refrigeration device that cools air while circulating it with a blower, an exhaust port is provided in the container, and the exhaust port and the blowout side of the blower are connected by a duct, and the duct is connected to the container side. In addition to forming a facing air outlet, a damper is provided for switching the air blowing direction of ozone-containing air flowing through this duct to either the exhaust port side or the air outlet side.

As a result, when loading and unloading the cargo in the container, the damper provided in the duct closes the outlet side and opens the exhaust side so that the high concentration of the high concentration existing in the container can be achieved. Ozone is forcibly exhausted together with the air in the container from the exhaust port through the exhaust port to the outside of the container by the blower of the refrigeration system in the container. Therefore, since the ozone concentration in the container is reduced in a short time, the work of loading and unloading the cargo can be immediately started.
Also, if this exhaust port is formed in the upper partition wall that partitions the container, high-concentration ozone in the container will be exhausted above the container, preventing adverse effects on workers around it. can do. Further, by providing the rain cover at the upper part of the exhaust port, rain water does not enter the container even during the exhaust work as described above in the rain.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a truck container according to the present invention. As shown in the figure, the truck container has a box-shaped container 1 in which a refrigerating device 2 and an ozone generator 3 are housed at an upper end in a traveling direction. While cooling, the ozone generated from the ozone generator 3 simultaneously deodorizes and sterilizes the inside of the container 1.

As shown in FIG. 2, the refrigerating apparatus 2 includes an evaporator (evaporator) 4 located in a duct 6 provided at the upper end of the container 1 in the traveling direction, and a compartment in front of the container 1 in the evaporator 4. A condenser (condenser) 5 attached with the wall 1a sandwiched, a compressor and an expansion valve (not shown) are connected by a refrigerant pipe, and a blower 7 attached to the evaporator 4 connects the condenser 5 and the expansion valve as shown by an arrow in the figure. The air in the container 1 is forcibly circulated to cool the air in the container 1. On the other hand, the ozone generator 3 is provided on the upstream side of the evaporator 4, that is, on the suction port 6a side of the duct 6, and has an arbitrary concentration of ozone according to a control signal from a controller 8 provided on the driver seat side or the like. Can be generated. At the same time, in order to measure the ozone concentration in the air flowing through the duct 6, that is, the ozone concentration generated on the ozone generator 3 side, inside the duct 6 on the downstream side of the blower 7 attached to the evaporator 4. The ozone sensor 9 is provided, and the detection signal thereof is input to the controller 8 side described above so that the ozone concentration in the container 1 is detected in real time. Further, an air outlet 6b facing the container 1 side is formed on the downstream side of the duct 6, so that cooling air containing ozone flowing in the duct 6 is blown to the container 1 side.

An exhaust port 10 communicating with the duct 6 is formed in the upper partition wall 1b of the container 1, so that the air containing ozone flowing in the duct 6 can be directly exhausted to the outside of the container 1. It is like this. That is,
The exhaust port 10 is provided with a damper 12 that is operated by an actuator 11. By closing either the exhaust port 10 or the air outlet port 6a communicating with the duct 6 with the damper 12, the ozone flowing through the duct 6 is prevented. The direction in which the contained air is blown out can be controlled.
The actuator 11 that operates the damper 12 is controlled by the controller 8 described above. Further, when the damper 12 is operated so as to close the air outlet 6b and open the exhaust port 10, the controller 8 is operated. The connected buzzer 14 sounds to inform the driver or a passenger carrying a baggage that the exhaust port 10 is open. Further, the ozone concentration in the container 1 detected by the ozone sensor 9 can be notified to a driver or a passenger carrying a luggage by an output device such as a liquid crystal display (not shown).

A sun visor-like rain cover 13 is provided above the exhaust port 10, and the exhaust port 1
Even if 0 is open, rainwater does not enter the container. In addition, this rain cover 13
As shown in the figure, the front end of the exhaust port 10 is fixed in the traveling direction of the exhaust port 10, and the rear end of the exhaust port 10 is inclined obliquely upward, so that the influence of wind from the front during traveling is minimized. It is equipped with.

In the above, first, during normal operation such as during transportation, the actuator 12 controlled by the controller 8 holds the damper 12 in a state of closing the exhaust port 10 as shown by the broken line in the figure. As a result, the inside of the container 1 is hermetically sealed, and efficient cooling, deodorization and sterilization are performed. That is, the air in the container 1 is sucked into the duct 6 from the air suction port 6 a of the duct 6, and when passing through the ozone generator 3, a part of oxygen contained therein becomes ozone and the evaporator 4 is used. After being cooled by the blower 7, it is blown into the inside of the container 1 by the blower 7 from the blowout port 6b provided on the downstream side of the duct 6 as shown by the broken line in the figure, and cools the inside of the container 1 and is included therein. Ozone simultaneously deodorizes and sterilizes the inside of the container 1. At this time, as described above, since the duct 6 is provided with the ozone sensor 9 generated by the ozone generator 3, the ozone concentration in the container 1 is constantly maintained by the controller 8 that controls the ozone generator 3. It can be arbitrarily adjusted to the most effective value.

Next, when an operator enters the container 1 in order to carry in / out the luggage from such a state,
The controller 8 stops the ozone generator, and the actuator 11 operates the damper 12 so as to close the blower outlet 6b side of the duct 6 and opens the exhaust outlet 10 side as shown by the solid line in the figure. Then, the air containing ozone in the container 1 is discharged from the suction port 6a of the duct 6 to the duct 6
The ozone generator 3 and the evaporator 4 are sucked into the interior.
After passing through as it is, all the air flows from the duct 6 to the exhaust port 10 side by the blower 7 as shown by the solid line arrow in the figure, and is exhausted above the container 1 from here.

As a result, a large amount of ozone in the container 1 is discharged, and the ozone concentration is lowered to the safe range in a short time, so that the loading / unloading work of the package can be started quickly. Further, since the exhaust port 10 is formed in the upper partition wall 1b of the container 1 as described above, the high-concentration ozone exhausted from the exhaust port 10 does not directly blow on the baggage unloader or the like. The risk of adverse effects is extremely low. At this time, if the carry-in / out door (not shown) provided in the container 1 is opened a little, the outside air easily enters the container 1 so that the air can be easily exhausted and the time required for lowering the ozone concentration can be further shortened. Needless to say. In addition, a rain cover 13 is provided above the exhaust port.
Since it is attached, the exhaust can be performed without problems in rainy weather, and the intrusion of rainwater into the container 1 can be prevented.

Next, the container 1 is operated by the ozone sensor 9.
If it is confirmed that the ozone concentration inside the container has fallen to a safe level, the damper 1 is installed to prevent the temperature inside the container 1 from rising.
2 is returned to the original state, that is, the state where the exhaust port 10 is closed, and the work of carrying in and out the luggage is performed. Since the buzzer 14 that interlocks with the damper 12 is ringing during this exhaust, it is possible to call attention to the surroundings and
Exhaust port 1 that is difficult to see due to the operation stop sound of buzzer
The open / closed state of 0 can be easily recognized. In addition, this damper 12
Although the closing operation of the exhaust port 10 with respect to the exhaust port 10 may be manually performed while confirming the detection value by the ozone sensor 9 as described above, the safe concentration of ozone is set in the controller 8 in advance, and the ozone sensor 9 detects it. The exhaust port 10 may be set to be automatically closed when the value reaches this value.

As described above, according to the present invention, since the exhaust port for exhausting the air containing the high concentration of ozone and the damper for opening and closing the same are formed in the upper part of the container, the ozone concentration in the container can be brought to the safe range in a short time. Can be lowered. Also, since this exhaust is performed by using the blower that has been conventionally provided in the refrigeration system as it is, it can be achieved at a lower cost than in the case where a new exhaust system or fan is provided, and furthermore, it can be achieved in the container. The object of the present invention can be easily achieved without sacrificing the storage space.

[0018]

In summary, according to the present invention, since the ozone concentration in the container can be lowered to the safe area in a short time, the work of carrying in and out of the container can be started quickly, and the work efficiency of carrying in and out can be improved. Can be improved.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of the present invention.

FIG. 2 is a partially enlarged view showing a portion A in FIG.

[Explanation of symbols]

 1 Container 1a Upper partition wall 2 Refrigerator 3 Ozone generator 6 Duct 6b Air outlet 7 Blower 10 Exhaust port 12 Damper 13 Rain cover

Claims (3)

[Claims] 1. A box-shaped container for storing fresh food and the like, comprising an ozone generator and a refrigerating device for cooling air containing ozone generated by the ozone generator with a blower. In a truck container, an exhaust port is provided in the container, and the exhaust port and the blower side of the blower are connected by a duct, and a blowout port facing the container side is formed in this duct, and ozone flowing in the duct is discharged. A truck container comprising a damper that switches the direction in which the contained air is blown out to either the exhaust port side or the blowout port side. 2. The truck container according to claim 1, wherein the exhaust port is formed in an upper partition wall that partitions the container. 3. The truck container according to claim 2, wherein a rain cover for preventing rainwater from entering is provided above the exhaust port.