JP3038119U - Temperature control type simple cool box for distribution freezer installation - Google Patents

Abstract

(57) [Abstract] [Problem] To be installed appropriately in a freezing room used for logistics,
One or more cold storage chambers with a predetermined temperature are provided, and each cold storage chamber can be set to an independent temperature so that the space temperature in the cold storage chamber is uniform even in a freezing room where the surrounding temperature is not isothermal. To obtain a temperature-controlled type simple cool box for installation in a distribution freezing room that can be maintained at various temperatures. SOLUTION: This is installed in a refrigerating room used for physical distribution such as a refrigerating vehicle, an aircraft, a ship, a frozen warehouse, etc. Such as a sheet-like heating element or other heater integrally attached to a required inside portion, a temperature sensor that is a heat-sensitive portion installed at a required portion of the heater, and a thermostat for controlling the temperature sensed by the temperature sensor. A temperature controller and means for energizing the heater from a power source via the temperature controller are provided.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a cold insulation box installed in a freezing compartment used for physical distribution such as a cold insulation vehicle, an aircraft, a ship, a frozen warehouse, etc., and particularly, the ambient temperature where the cold insulation box is installed is not isothermal and varies depending on the location. The present invention relates to a temperature control type simple cold insulation box for installation in a physical distribution freezing room, which can maintain a space temperature in the cold insulation box in a stable cold state at a predetermined temperature in a freezing room.

[0002]

[Prior art]

 Generally, the temperature zone for low-temperature transportation includes a freezing temperature zone of −18 ° C. or lower and a refrigeration temperature zone of 0 ° C. to 10 ° C., and there exists a low temperature zone suitable for the property and state of the object to be transported.

Recently, especially in the fields of various perishable foods, blood, organs / medicines, other medical products, chemicals, etc., the refrigeration temperature to avoid freezing is required due to the need to maintain quality, maintain efficacy, and ensure safety. The need for transportation in other predetermined temperature regions is rapidly increasing, and strict temperature control specified is required for the refrigeration temperature zone and other constant temperature transportation.

For example, a dedicated vehicle that individually corresponds to the freezing temperature zone and the refrigerating temperature zone has an advantage that each low temperature control is relatively easy. It is not possible to carry goods. Therefore, if it is possible to collect cargo that corresponds to the loading limit only by the quantity of goods transported in the dedicated temperature zone, it is difficult to collect goods that are transported in the dedicated temperature zone on a regular basis. On the other hand, since it is not possible to mix and load products that have different transport temperatures, the storage space becomes empty, which is wasteful in terms of transport efficiency and also contributes to increased transport costs. There is.

Therefore, in order to realize simultaneous transportation in a plurality of low temperature zones, a two-temperature, two-chamber type vehicle is manufactured and used. A heat insulating structure is usually used for the partition walls that partition the space of different temperature zones in the vehicle.

However, when the partition wall is fixed, the necessary heat insulation performance can be secured because the airtightness is maintained, but since the space for each temperature zone is fixed, there is no freedom of loading. There are restrictions on loading efficiency. On the other hand, when the partition wall is movable, the degree of freedom of loading increases, but the sealing structure around the partition wall becomes loose and sufficient airtightness cannot be maintained, making it difficult to secure heat insulation performance.

Further, in the two-temperature two-chamber type vehicle, it is necessary to install a refrigerator for each temperature zone, which increases the cost of the equipment. In addition, in the case of remodeling an existing single-temperature vehicle to the two-temperature, two-chamber type, in addition to the interior cost, a large remodeling work such as adding a refrigerator is required. In any case, it will increase the transportation cost.

In addition, Japanese Utility Model Application Laid-Open No. 63-23296 proposes a structure related to a liquid heating container. However, the structure is such that in a liquid container including a container tank and an outer frame that supports the outer surface of the container tank, the outer surface including at least the bottom plate of the container tank has both sides of the heat generating layer formed by the coating film. A surface heating element covered with an insulating sheet is attached, and a heat insulating material is provided on the inner surface of the outer frame. Therefore, the container heats the liquid in the tank by the heat conducted to the inner surface of the tank by heating the outer surface of the container tank. It is structurally completely different from the one that keeps the temperature constant.

[0009]

[Problems to be solved by the device]

 INDUSTRIAL APPLICABILITY The present invention is appropriately installed in a refrigerating room used for physical distribution such as a refrigerated vehicle, an aircraft, a ship, a frozen warehouse, etc., and at least one refrigerating temperature or other predetermined temperature refrigerating room is appropriately provided. By allowing each cold storage room to be set to an independent predetermined temperature, all the drawbacks of the past were eliminated, and the space inside the cold storage room was changed even in the freezing room where the surrounding temperature is not isothermal but fluctuates depending on the location. Aim to obtain a temperature-controlled simple cold-keeping box for installation in a physical freezing room that can maintain the temperature strictly at a uniform and stable predetermined temperature and is extremely easy to handle and transport efficiently. It is a thing.

[0010]

[Means for Solving the Problems]

 The present invention has been made in view of the above point of view, and is to be installed in a refrigerating compartment used for physical distribution such as a refrigerated vehicle, an aircraft, a ship, a frozen warehouse, etc. A box or a molded box, a sheet-like heating element or other heater integrally mounted on a required portion on the inner side of the heat insulating panel, and a temperature sensor which is a heat-sensitive portion installed at a required portion of the heater. A temperature controller such as a thermostat for controlling the temperature sensed by the temperature sensor, and means for energizing the heater from a power source via the temperature controller. It is intended to provide a cool box.

[0011]

[Action]

 Next, the operation of the present invention will be described. Insulation panels are used to store the refrigerating box, which stores refrigeration temperatures and other objects that need to be maintained at a prescribed temperature, in a freezing room during operation such as cold storage vehicles, aircraft, ships, and frozen warehouses. Configure and install one or more of them. Since the outside ambient temperature of the cold insulation box is usually -18 ° C or lower in the freezing temperature zone, the frozen cold air is transmitted to the internal space of the cold insulation box and is cooled over time and gradually cooled toward the freezing temperature direction. To be cooled. Therefore, even if the refrigerating box is not equipped with equipment for refrigerating, the internal space temperature naturally reaches a low temperature of about 0 ° C to 10 ° C, which is the refrigerating temperature zone.

The internal space of the cold insulating box is usually cooled to a temperature lower than 0 ° C. to 10 ° C. which is a refrigerating temperature zone. In that case, when the temperature sensed by the temperature sensor provided on the inner wall of the cold insulation box becomes lower than a predetermined set temperature, the temperature controller operates and the cold insulation is performed via a cord connected to a power source. A controlled current is applied to a sheet heating element or other heater that is integrally attached to the heat insulation panel of the box. In this way, the fed heater heats up and heats up, raising the excessive cooling temperature of the internal space of the cold insulating box and maintaining it at a predetermined refrigerating temperature or other temperature.

In this way, the cold storage boxes placed in the freezing compartment during operation are set to a predetermined independent refrigeration temperature and other temperatures depending on the articles stored in each box.

By the way, the cold-insulating box is a cube whose one side is 1 meter, and is made of a heat insulating material having a thermal conductivity of 0.03 W / m · k and a thickness of 100 mm, and the surrounding freezing temperature is −18 ° C. In order to keep the temperature of the internal space of the cold insulating box at 3 ° C., 0.03 × 6 × 1 / 0.1 × (3 + 18) = 37.8 W, and the power consumption is small.

In that case, when the temperature distribution around the cold storage box where the cold storage box is installed is not isothermal and fluctuates depending on the location, for each heat insulation panel forming each surface of the cold storage box, The temperature sensor senses each cooling temperature, which varies depending on the temperature of the outside, and the heater from the power source such as the battery adjusts the temperature according to the sensed temperature to the preset temperature by the thermostat or other temperature controller. Control the action of energizing the power supply.

As a result, as shown in FIG. 6, each surface of the cool box is leveled to a preset set temperature even if the cooling temperature is different due to the fluctuation of the temperature distribution around the cool box. . Therefore, the temperature does not fluctuate depending on the position of the internal space of the cool box, and the temperature is made uniform.

[0017]

【Example】

 Hereinafter, a configuration of an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a cross-sectional view of a heat insulating panel that constitutes a cold insulating box, Fig. 2 is a schematic conceptual diagram showing the related configuration of several heat insulating panels that make up the cold insulating box, and Fig. 3 each has a predetermined size. Fig. 4 is an assembly mode diagram showing an aspect of assembling the cold insulation box with one heat insulating panel, Fig. 4 is a sectional explanatory view showing a state in which a lifter is installed in the bottom of the cold insulation box and the operation of the lifter, and Fig. 5 is a freezing room of a cold insulation vehicle. Fig. 6 is a schematic conceptual diagram showing a state in which a cool box is installed, and Fig. 6 is a performance test result chart of the cool box.

In the several heat insulation panels 1 constituting the cold insulation box A, the inner wall material 3 is attached to the inner surface of the lightweight heat insulation material 2 such as styrofoam or the like facing the refrigeration temperature space (inside the box) a, and the refrigeration thereof is performed. The outer wall member 4 is attached to the outer surface facing the temperature space (outside the box) b. A heater 5 such as a sheet-like heating element that generates surface heat when energized is integrally mounted on a required portion inside the inner wall member 3. A temperature sensor 6, which is a heat-sensitive section, is installed at a required portion of the heater 5. A temperature controller such as a thermostat 7 is electrically connected to the temperature sensor 6, whereby a current from a power source 8 such as a battery for energizing the heater 5 according to the temperature sensed by the temperature sensor 6 is supplied. To control.

The heat insulating panel 1 is constructed so that it can be assembled and disassembled into a box shape, and when assembled, its internal space is naturally sealed, so that the cold insulation box A is formed.

When the space inside the cold insulation box A is deep, as shown in FIG. 4, a lifter 9 is installed at the bottom of the cold insulation box A, and the cold insulation is stored inside the cold insulation box A. , It is convenient to be able to lift up automatically in accordance with the decrease of the load so that it is easy to pick up the object at the top by hand.

The cold insulation box A configured as described above is installed in the freezer compartment 12 of the cold insulation vehicle 11 and connected to the battery power supply 8 in the vehicle as shown in FIG. 5, for example.

In the above description, the case where the heat insulating panel is assembled and disassembled into the box has been described, but the same can be applied to the case where the molded box is fixed with the heat insulating panel.

[0023]

[Effect of the invention]

 As is clear from the above description, the cold storage box according to the present invention is appropriately installed in the cold storage room for operation such as cold storage vehicles, aircraft, ships, frozen warehouses and the like and is connected to the power source. By simply providing one or more refrigerating rooms and other cold storage rooms, it is possible to carry out mixed transportation that requires maintaining independent cold storage temperatures, such as freezing and refrigeration, and to significantly improve loading efficiency. The handling is simple and the temperature control is easy, which can make a great contribution to the improvement of transportation efficiency.

Further, even in a freezing room where the ambient temperature in which the cold insulation box is installed is not isothermal and fluctuates depending on the location, the space temperature in the cold insulation box is kept constant at a predetermined temperature. Since it can be maintained in a state, it is possible to achieve sufficient quality preservation and performance, maintenance of efficacy, and safety assurance, especially for articles whose temperature is strictly controlled during transportation.

Further, considering that the power consumption required to maintain the cool box at a predetermined temperature is small, a battery can be sufficiently used as a power source in the case of vehicle mounting. Therefore, a widely used refrigeration vehicle can be used very easily as a heat insulation vehicle in a temperature range of two or more temperatures.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a heat insulating panel that constitutes a cool box according to an embodiment of the present invention.

FIG. 2 is a schematic conceptual view showing a related configuration of several heat insulation panels that constitute a cold insulation box of an embodiment of the present invention.

FIG. 3 is an assembly mode diagram showing a mode of assembling the cold insulation box according to one embodiment of the present invention with six heat insulation panels each having a predetermined size.

FIG. 4 is a cross-sectional explanatory view showing a state in which a lifter is installed in the bottom portion of the cold insulation box of one embodiment of the present invention and the operation of the lifter.

FIG. 5 is a schematic conceptual view showing a state where the cold insulation box according to the embodiment of the present invention is installed in a freezer compartment of a cold insulation vehicle.

FIG. 6 is a result chart of a cold box performance test of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Insulation panel 2 ... Lightweight insulation material such as Styrofoam 3 ... Inner wall material 4 ... Outer wall material 5 ... Sheet heating element and other heaters 6 ... Temperature sensor 7 ... Temperature controller 8 ... Power supply 9 ... Lifter 11 ... Cold vehicle 12 ... Freezer 13 ... Battery A ... Cooling box a ... Refrigerating temperature space (inside box) b ... Freezing temperature space (outside box)

Claims (3)

[Utility model registration claims] 1. A heat insulating panel, which is installed in a refrigerating room used for physical distribution such as a refrigerated vehicle, an aircraft, a ship, a freezing warehouse, etc., and comprises a plurality of heat insulating panels constituting a disassembled box. A sheet-like heating element or other heater integrally attached to a required portion inside the, a temperature sensor that is a heat-sensitive portion installed at a required portion of the heater, a thermostat that controls the temperature sensed by the temperature sensor, and the like. And a means for energizing the heater from a power source via the temperature controller, the temperature control type simple cool box for installing in a distribution freezing room. 2. A molding box which is installed in a refrigerating compartment used for physical distribution such as a refrigerated vehicle, an aircraft, a ship, a frozen warehouse, and the like, and a required portion inside the heat insulating panel. A sheet-like heating element or other heater integrally mounted, a temperature sensor that is a heat-sensing unit installed at a required portion of the heater, and a temperature controller such as a thermostat that controls the temperature sensed by the temperature sensor. A means for energizing the heater from a power source via the temperature controller is provided, and the temperature control type simple cool box for installation in a distribution freezing room is provided. 3. A temperature-controlled simple cold-keeping box for installation in a distribution freezing room according to claim 1, wherein a lifter is installed at the bottom of the box.