WO2004010063A1

WO2004010063A1 - Constant temperature container, and sanitary supervision and freshness holding system for constant temperature container

Info

Publication number: WO2004010063A1
Application number: PCT/JP2003/009291
Authority: WO
Inventors: Yousuke Takahashi
Original assignee: Yanmar Co., Ltd.
Priority date: 2002-07-22
Filing date: 2003-07-22
Publication date: 2004-01-29
Also published as: JP3776063B2; CN1330912C; JP2004053160A; CN1703605A

Abstract

A constant temperature container (1), comprising an ozone generator (30) and a negative ion generator (40) installed in a chamber (10), wherein the negative ion generator (40) is installed, by recessing, in the ceiling (22) portion of the chamber (10) having a refrigeration unit (12) with downward blow near a door (11) apart from the refrigeration unit (12), the ozone generator (30) is installed near the air suction port (13) of the refrigeration unit (12), and the AC power of an engine unit (50) for generator for driving the refrigeration unit (12) is used as the power supply of the ozone generator (30) and the negative ion generator (40).

Description

Description Sanitary control of constant temperature containers and constant temperature containers

The present invention relates to a constant-temperature container having a refrigeration cycle of downward blowing, and more particularly to a constant-temperature container provided with an ozone generator and a negative ion generator. Background art

Constant-temperature containers, which are generally called cool containers, maintain the inside of the refrigerator at a constant temperature in order to maintain the freshness of fresh foods for a long period of time, thereby suppressing the life activities (respiration, etc.) of the fresh foods. However, even if the inside of the refrigerator is kept at a constant temperature (for example, low temperature such as 5 ° C), the corrosion of perishable products due to fungi (molds and bacteria) that grow at low temperatures will occur. There was a problem when putrefaction odor due to reproduction adhered to fresh produce. .

Also, some types of perishables generate ethylene gas, and there was a problem that freshness was further degraded by the ethylene gas generated by themselves. As a countermeasure, ethylene gas adsorbents were conventionally stored in a refrigerator to keep freshness from dropping.However, ethylene gas adsorbents must be collected and replaced each time fresh goods are transported. If the user forgets to replace the battery and keeps using it, there is a problem that the bag is torn and the bead-shaped adsorbent spills into the refrigerator. Recently, as a means for maintaining hygiene and maintaining freshness of such fresh products, a fresh product preserving and distributing apparatus having an ozone generator and a negative ion generator in a constant-temperature container has been proposed (Japanese Patent Application Laid-Open No. 20-20). 0 2—6 8 4 2 2).

By the way, ozone is oxidized, decomposed, and sterilized by floating in the air or adsorbing to dust and bacteria attached to walls and fresh products. Even if there is a metal plate or the like, it is not affected by this. Negative ions, on the other hand, have the property of repelling each other and spreading in space, but have the property of being rapidly consumed when passing through a narrow space. In addition, if a metal plate or the like is in the vicinity, it will not be adsorbed by the metal plate and the sterilization effect cannot be expected.

Therefore, it is necessary to install the ozone generator and the negative ion generator in consideration of such characteristics. However, such a point is not considered at all in the above-mentioned conventional fresh food storage and distribution device, and the The generator and the negative ion generator are integrated and installed in the same place (the ceiling in the refrigerator). For this reason, the characteristics of each device could not be fully demonstrated, and a sufficient sterilization effect could not be expected.

The present invention has been developed to solve the above problems, and the purpose is to make the most of the characteristics of each device by arranging the characteristics of the ozone generator and the negative ion generator sufficiently. To provide a constant temperature container. Disclosure of the invention

The constant temperature container of the present invention includes an ozone generator and a negative ion generator Wherein the negative ion generator is installed on a ceiling portion of a refrigerator having a bottom-blowing type refrigeration unit and away from the refrigeration unit, and the ozone generator is disposed inside the refrigerator. It is characterized by being installed near the refrigeration unit described above.

According to the present invention having the above-described features, the negative ion generator is installed at a location away from the freezing unit, which is a ceiling portion of the inside of the refrigerator having the bottom-blowing type freezing unit. . Specifically, it is installed in the space between the luggage and the ceiling, which is the maximum space created when loading luggage (perishables), and opposite to the inlet of the refrigeration unit. Negative ions have a spatial diffusivity that repels each other and spreads out into the space, so that they are effectively sterilized while diffusing into the upper space of the loaded fresh product. On the other hand, the metal plate that adsorbs and eliminates the negative ions is used in the refrigerator for the heat exchanger of the refrigeration unit. Therefore, in the present invention, the negative ion generator is installed at a place away from the refrigeration unit. As a result, the sterilizing action of the negative ions can be maintained for a longer time.

Ozone, on the other hand, has no charge, so it is not affected by nearby metal plates, etc., and dust and fungi floating in the air, and fungi adhering to walls and perishables Act on etc. Therefore, by installing the ozone generator near the refrigeration unit, the characteristics of the ozone generator can be fully utilized. As a specific installation position, if the refrigeration tub is installed on the inner back side opposite to the door inside the refrigerator, install the ozone generator on the ceiling near the refrigeration unit, Install the negative ion generator on the ceiling near the door. In this case, the ozone generator should be installed near the upper suction port of the refrigeration unit. Due to the structure of the bottom-blowing type refrigeration unit, dust and bacteria tend to accumulate in the heat exchanger and the downstream side, which is the air outlet, from the upstream side, which is the air intake, and the moisture in the air. Also congealed and damp. Therefore, by installing an ozone generator near the suction port of the refrigeration unit, high-concentration ozone is immediately sucked into the refrigeration unit from the suction port, and bacteria that are growing near the downstream outlet are reduced. It can work and sterilize it. That is, ozone in a high concentration state can directly act on the refrigeration unit. This can prevent contamination of luggage (perishable goods) by fungi in the refrigeration unit.

In addition, the negative ion generator will be installed so as to be embedded in the ceiling of the warehouse. This ensures that the minus ion generator does not get in the way when opening the door and loading and unloading perishables.

If the constant temperature container is equipped with a generator engine cut that drives the refrigeration tub, the power supply for the ozone generator and the negative ion generator is used as an engine unit for the rice generator. Use the AC power supply as it is. In the case of a conventional cool container, both the transportation vehicle and the cool container are equipped with

Only DC power supply. Therefore, in order to use an ozone generator or a negative ion generator, a DC / AC converter is required separately, but if an engine unit for a generator that drives a refrigeration unit is installed, When such unnecessary devices are newly installed, wastefulness can be eliminated. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a schematic cross-sectional view as viewed from the side showing the entire configuration of the constant temperature container of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic cross-sectional view as viewed from the side showing the entire configuration of the constant temperature container of the present invention.

The constant temperature container 1 of the present embodiment has, for example, a door 11 at the rear side (opposite to the driver's seat) of the inside of the storage compartment 10, from which a luggage A such as perishables is loaded or unloaded. It has become. In addition, the refrigeration unit 12 is configured to be installed inside the refrigerator compartment 10 (on the back side of the driver's seat).

In the present embodiment, the refrigeration unit 12 is of a bottom blowing type. That is, the refrigeration unit 12 is provided with an air inlet 13 on the upper side and an air outlet 14 on the lower side. In addition, a cooling fan 15 is arranged near the lower part of the suction port 13, and a heat exchanger 16 is arranged near the lower part.

The cool air blown out from the outlet 14 passes between the rails 21 that are arranged in multiple strips to lift the load A from the floor and load it in the warehouse 10, and from the interior of the warehouse to the door 11 side. In the middle of the flow, it blows upward from between the loaded luggage Α, passes through the space 23 between the uppermost luggage A and the ceiling 2 2 of the storage 10, Flow toward the suction port 13 side of the refrigeration unit 1 2 Will be.

In such an arrangement, in the present embodiment, the ozone generator 30 is installed on the ceiling 22 of the refrigerator 10 so as to face the suction port 13 of the freezing unit 12, The ion generator 40 is installed on the ceiling 22 in the vicinity of the door 11.

As a result, ozone generated from the ozone generator 30 is immediately sucked into the refrigeration unit 12 from the suction port 13 at a high concentration in the high-concentration state, passes through the heat exchanger 16 and is located near the downstream outlet 14. Acts on bacteria that are breeding in the soil and sterilizes it.

In addition, the negative ions generated from the negative ion generator 40 spread while spreading in the upper space 23 of the stacked baggage A, and after the dust and fungi floating in the space are effectively sterilized, However, it is sucked out from the suction port 13 of the freezing unit 12 and disappears.

In addition, in Fig. 1, the negative ion generator 40 is installed so as to be exposed from the ceiling 22 of the compartment 10 to the bottom, but it does not interfere with opening and closing the door 11 and loading and unloading luggage A. It is good to install it so that it is embedded in the ceiling 22.

In the constant temperature container 1 of the present embodiment, a generator engine unit 50 is mounted as an electric source for driving the refrigeration tub 12. Therefore, as the power source of the ozone generator 30 and the negative ion generator 40, the AC power source of the generator engine unit 50 can be used as it is. Also, in the above embodiment, a bottom-blowing type refrigeration unit is mounted. Although the present invention is applied to a constant-temperature container, the present invention can be applied to a constant-temperature container equipped with a refrigeration unit of an upper blowing type (air flow is completely opposite to that of a lower blowing type). In this case, it is preferable to install the ozone generator and the negative ion generator on the floor side of the warehouse 10 in order to maximize their characteristics, but it is also possible to install it on the ceiling side. is there. .

The present invention may be embodied in various other forms without departing from its spirit or essential characteristics. Therefore, the above-described embodiment is merely an example in every respect, and should not be construed as limiting. The scope of the present invention is defined by the appended claims, and is not restricted by the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

The present application is an application based on Japanese Patent Application No. 2002-212123, filed in Japan, and the contents thereof are incorporated in the present application by referring to the present application. The references cited in the present specification are specifically incorporated by reference in their entirety. Industrial applicability · As described above, the constant temperature container of the present invention and the sanitary management of the constant temperature container 'freshness maintenance system is used for long-term freshness maintenance of perishable products in sea transportation by ship or land transportation by rail or truck. It is suitable for containers that can be used. It is also suitable for temporary storage before and after shipment of perishables and temporary storage, such as temporary storage.

Claims

The scope of the claims

1. In a constant temperature container (1) equipped with an ozone generator (30) and a negative ion generator (40)

The negative ion generator (40) is installed at a location away from the refrigeration unit (1 2) on the ceiling (22) of the interior (10) that has the refrigeration unit (1 2) of the bottom blow-out type. And the ozone generator (30) is installed near the freezing unit (12) in the ceiling (22) of the interior (10). ).

2. The ozone generator (30) is installed on the ceiling (22) near the refrigeration unit (1 2) installed at the back of the refrigerator on the opposite side of the door (11), and the negative ion is generated. The constant-temperature container (1) according to claim 1, wherein the vessel (40) is installed on a part of the ceiling (22) near the door (11).

3. The constant temperature container (3) according to claim 1 or 2, wherein the ozone generator (30) is installed near a suction port of the refrigeration unit (12). 1) Hygiene management · Freshness maintenance system.

4. The system according to claim 2, wherein the negative ion generator (40) is buried in a ceiling (22) of the inside of the refrigerator (10).

5. The ozone generator (30) and the negative ion generator (40) The sanitary control and freshness maintenance system for a constant temperature container (1) according to claim 1, wherein an AC power supply of a generator engine for driving the refrigeration unit (12) is used as a power supply.