JP2572084Y2 - Transport warmer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport warmer for transporting medical products, blood, cultured bacteria and the like while keeping the temperature within a certain temperature range.

[0002]

2. Description of the Related Art Conventionally, transport containers have been developed for transporting biological specimens such as foods and beverages, pharmaceuticals, blood, and cultured bacteria while keeping the temperature within a predetermined temperature range. Some of these heat-insulating containers have been made by coating or plating the inner and outer surfaces of styrofoam or the like to enhance the heat-insulating effect.
No. 7583), hot water is poured between a container provided in the center of the container and the container exterior to keep the center container warm (Japanese Utility Model Application Laid-Open No. 56-101574) or a container lid. Insulated with heat storage agent
No. 91860) has been proposed.

Further, there has been proposed a food heating / insulation bag using a surface heating element, which is connected to a 100 V household power supply so that retort foods can be heated and eaten (Japanese Utility Model Application Laid-Open No. 61-40370). ).

[0004]

[Problem to be solved by the present invention]
The method of coating or plating a container as described in Japanese Patent No. 37583 does not have a sufficient heat-retaining effect, and the method of using water as described in Japanese Utility Model Application Publication No. Because the effect is lost,
In order to maintain the heat retaining effect, hot water must be replaced each time, which is troublesome. Since those using a heat storage agent also have a short duration, it is necessary to replace the heat storage agent in order to maintain the heat retention effect, which is troublesome.

A device using a surface heating element as described in Japanese Utility Model Application Laid-Open No. 61-40370 cannot be used for transportation because it cannot be used without a 100 V household power supply. In addition, since it is in the shape of a bag, those that can keep heat are limited, and cannot be used for, for example, a test tube rack.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and has as its object to provide a transport warmer which has a high thermal insulation effect and can be easily transported. Another object of the present invention is to provide a transport warmer that can be used any number of times without replacing the warming means.

[0007]

According to the present invention, there is provided a transport warmer for achieving the above object, comprising a heat-insulating container made of a synthetic resin molded body and containing a heat-insulated material, a lid for covering an opening of the heat-insulating container. A heat generating unit provided on at least one inner surface of the heat insulating container or the lid, a rechargeable battery that is a power source of the surface heat generating unit, and a battery storage unit that stores the rechargeable battery ; Heating part is made of carbon fiber or metal filler
Sheet or conductive filter dispersed in non-woven fabric or synthetic resin
Of conductive paint in which color is dispersed in resin.
You. In addition, the transport warmer of the present invention further has an outer case for housing the heat insulating container, and the outer case is provided with a battery housing for housing the rechargeable battery.

[0008]

When the heat is kept, the rechargeable battery and the surface heat-generating portion are conducted to generate heat in the surface heat-generating portion, thereby keeping the heat insulating container at a predetermined temperature and keeping the heat-insulated material to be stored. The heat retaining temperature can be set by selecting a surface heating portion having a predetermined resistance. The heat retention can be performed up to the capacity limit of the rechargeable battery, and the heat retention can be stopped by cutting off the conduction between the rechargeable battery and the surface heating unit. In addition, the battery can be used any number of times by charging the rechargeable battery, if necessary, other than during warming.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a transport warmer according to the present invention. As shown in FIG. 1, a transport warmer A is made of a synthetic resin molded body, and is made of a heat-insulating container 1 for storing a heat-insulated material such as food, medicine, blood, and culture bacteria, and a material similar to the heat-insulating container 1. Lid 2, surface heat generating portion 3 provided on the bottom surface of heat insulating container 1, and battery housing portion 4 provided on heat insulating container 1
And a rechargeable battery 5 stored in the battery storage unit 4 and serving as a power source for the surface heating unit 3.

The materials of the heat insulating container 1 and the lid 2 are as follows.
It is desirable to use a foamable resin which is lightweight and has a large heat insulating and heat retaining effect, and foamed polystyrene, foamed polyurethane, foamed polyethylene, foamed polypropylene and the like are preferably used. The shape of the heat-insulating container 1 and the lid 2 can be any shape in accordance with the shape of the heat-insulating material to be stored, and the heat-insulating container 1 has an appropriate size so that the heat-insulating material can be easily taken in and out. It has an opening, and the lid 2 is provided integrally with or separately from the heat insulating container 1 so as to cover the opening.

As the surface heat generating portion 3, a sheet in which carbon fibers, metal fillers and the like are dispersed in a nonwoven fabric or a synthetic resin, a conductive paint in which a conductive filler is dispersed in a thermosetting resin or the like can be used. In the case of a sheet in which carbon fiber or metal filler is dispersed in a nonwoven fabric or a synthetic resin, for example, FIG.
As shown in FIG. 2, an electrode portion 32 and a terminal 33 are provided on both sides of such a sheet-like material 31, and a lead layer 34 is connected to each terminal 33. What is adhered is used as the surface heating portion 3.

The temperature of the surface heating portion 3 rises after energization and reaches a saturation point, and the saturation temperature is determined by the specific resistance of the sheet-like material 31. Therefore, if it is desired to keep the temperature at a low temperature, a sheet 31 having a high specific resistance may be used, and if it is desired to keep the temperature at a high temperature, a sheet 31 having a low specific resistance may be used. When a conductive paint is used, the conductive paint is applied to the inner surface (side surface and / or bottom surface) of the heat insulating container 1 to a predetermined thickness so that two ends are present, and after the resin is thermally cured or dried, Electrodes are provided at these ends, lead wires are connected, and if necessary, overcoated with an appropriate resin. By applying a voltage of several volts to several tens of volts for such a conductive paint,
Although the temperature rises, when the temperature reaches a certain temperature, the contact of the conductive filler dispersed in the resin is released due to the expansion of the resin, so that the electricity is cut off. Therefore, a temperature control unit such as a thermostat is not required. The saturation temperature of the surface heating portion 3 using the conductive paint can be determined by the amount of the conductive filler contained in the resin and the thickness of the conductive paint application layer.

The surface heat generating section 3 may be provided on either the inner surface of the heat insulating container 1 or the inner surface of the lid 2, or may be provided in plural. In particular, when the surface heat generating portion 3 is arranged on the bottom surface of the heat insulating container 1 and the inner surface of the lid 2 or on both opposite sides of the heat insulating container 1 as shown in FIG. Part 3
As a result, the particles of air cause a so-called vibration absorption effect due to the effect of far-infrared rays emitted from the surface heating portion 3, and the heat retention effect is enhanced.

The rechargeable battery 5 serves as a power source for the surface heating unit 3 and may be a known rechargeable battery such as a lead storage battery, a nickel-cadmium battery, or a nickel-zinc battery. Therefore, a lead storage battery is preferable. A battery storage unit 4 for storing the rechargeable battery 5 is provided in the heat insulating container 1. The battery accommodating portion 4 is appropriately provided at a lower portion, a side portion, or the like of the heat insulating container 1, and is provided inside the bottom surface of the heat insulating container 1 as shown in FIG. Stored in the recess,
This recess may be covered with a plate-like member 7 or as shown in FIG.
As shown in (1), it may be accommodated in a space provided on the side of the heat insulating container 1.

The connection between the rechargeable battery 5 and the surface heat generating portion 3 can be made by providing a terminal portion on the rechargeable battery 5 side at a position where the electrode portion contacts when the surface heat generating portion 3 is installed. As shown in FIGS. 1 and 3, it is desirable that the connection be made via a switch 6. The switch 6 can be switched between, for example, "warming" and "charging". When the switch 6 is set to "warming", the surface heating unit 3 is conducted through the wirings 20 and 21, and the surface heating unit 3 is turned on only when necessary. The heating unit 3 can be driven. When the switch 6 is set to “charge”, the conduction between the rechargeable battery 5 and the surface heating unit 3 is cut off, and the rechargeable battery 5 is connected to the charging socket 8 instead. By inserting the socket of the charger main body 9 into the charging socket 8 with the switch 6 in the “charge” state, the rechargeable battery 5 can be charged. At this time, by selecting an appropriate type of the charger main body 9 or by switching a switch of the charger main body 9, various power supplies such as a household 100 volt power supply and a 12 volt power supply for automobiles and the like can be handled. Needless to say.

If the charger main body 9 is provided with an overcharge prevention function, it is not necessary to pay attention to the charging time. FIG. 4 shows a transport warmer B according to a second embodiment of the present invention. The insulated container B is substantially the same as the insulated container 1, the lid 2, the surface heating unit 3 and the rechargeable battery 5 in the insulated container B of FIG. Is provided, and a battery housing part 4 for housing the rechargeable battery 5 is provided between the outer case 10 and the heat insulating container 1.

The outer case 10 includes a lid 11 and the heat insulating container 1
To further enhance the heat insulation effect.
As in the case of the above, a bag-shaped material in which a flexible foamed resin material is laminated on a box made of a foamed resin or the like, a film such as polyvinyl chloride, or a material in which aluminum or the like is applied and laminated thereon, is used as appropriate. The outer case 10 can be provided with the switch 6 and the charging socket 8 via the wirings 20 and 21 in the same manner as the transport warmer A in FIG. The functions of the switch 6 and the charging socket 8 are exactly the same as those of the transport warmer A in FIG. The wiring 21 is detachable from the terminal portion of the surface heating section 3 so that the heat insulating container 1 and the lid 2 except for the rechargeable battery 5 can be taken out of the outer case 10.

The transport warmer B constructed as described above is
For example, when the collected test blood is kept warm and transported, each hospital collects the test blood using only the insulated container 1,
The heat-insulating container 1 containing blood is set in an outer case 10 provided in a car for collection and delivery, and transported while keeping the temperature. After arriving at the inspection organization, the heat insulating container 1 is taken out of the outer case 10 again and transported to a predetermined department. Accordingly, it is not necessary to carry the relatively heavy rechargeable battery 5 and the wiring section, so that the weight burden on the collection and delivery staff can be reduced.

Also, when it is necessary to keep heat only in the cargo compartment of an aircraft whose temperature is always lower than room temperature during transportation, only the heat insulating container 1 and the lid 2 are removed from the outer case 10 and collected and delivered.
It is efficient if the temperature is set in the outer case 10 when the aircraft is loaded to keep the temperature.

[0020]

[Effects of the Invention] As is clear from the above description, according to the insulated transport device of the present invention, the rechargeable battery is used as the power source for the surface heating part, so that it can be used without being restricted by the location of the power source. In addition, the heat generating means does not need to be replaced and can be used any number of times, and its handling is easy. In addition, it is possible to keep the heat for a long time by selecting the capacity of the rechargeable battery appropriately,
By selecting a surface heat generating portion having a predetermined resistance, a predetermined heat retaining temperature can be obtained, and it is particularly suitable for application to medical products and the like that require high-precision temperature control.

Further, according to the insulated warmer of the present invention, the outer case is detachable from the main body, and the rechargeable battery and its wiring portion are housed in the outer case. In addition, it is possible to efficiently carry out heat retention and transportation.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a transport warmer of the present invention.

FIGS. 2A and 2B are views showing an embodiment of a surface heating unit, wherein FIG. 2A is a plan view and FIG.

FIG. 3 is a sectional view showing another embodiment of the transport warmer of the present invention.

FIG. 4 is a sectional view showing another embodiment of the transport warmer of the present invention.

[Explanation of symbols]

 A, B: Insulation device for transport 1: Insulated container 2: Lid 3: Surface heating unit 4: Battery storage Part 5: Rechargeable battery 10: Outer case

Claims (2)

(57) [Scope of request for utility model registration] 1. A heat insulating container made of a synthetic resin molded body and containing a heat insulating material, a lid covering an opening of the heat insulating container, and a surface heat generating portion provided on at least one inner surface of the heat insulating container or the lid. A rechargeable battery that is a power source for the surface heating unit, and a battery storage unit that stores the rechargeable battery , wherein the surface heating unit is made of non-woven carbon fiber or metal filler.
Sheet or conductive filler dispersed in cloth or synthetic resin
Characterized by being made of a conductive paint in which is dispersed in a resin . 2. A heat insulating container made of a synthetic resin molded body and containing a heat insulating material, a lid covering an opening of the heat insulating container, and a surface heat generating portion provided on at least one inner surface of the heat insulating container or the lid. a rechargeable battery as a power supply of the surface heating unit, and the outer case for housing the heat insulating container, setting the external case
And a battery storage unit for storing the rechargeable battery.
The surface heating section is made of non-woven carbon fiber or metal filler.
Sheet or conductive filler dispersed in cloth or synthetic resin
Characterized by being made of a conductive paint in which is dispersed in a resin .