JPH0211352Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a container for storing precision equipment (mainly portable small electronic equipment such as personal computers) that requires temperature control, especially for precision equipment in cold regions. This invention relates to a container suitable for carrying equipment and using precision equipment.

[Conventional technology]

Thermal insulation devices in conventional thermal containers include:
A passive heat-retaining type heat-retaining device that surrounds the stored equipment using heat insulating material installed inside the container and allows the heat to radiate from inside the container only when the lid is closed. As with the heat-insulating container shown in the above issue, a chamber for storing a heat-insulating medium such as a heat-storage material is set up in a container made of a heat-insulating material using a ventilated member, and the air heated by the heat-insulating medium conducts heat transfer. There has been an active heat-retaining type of heat-retaining device that heats and retains heat in a sealed heat-retaining container using so-called hot air circulation.

Both the former passive heat retention type heat retention device and the latter active heat retention type heat retention device have a certain degree of heat retention effect, although it is insufficient, when the container or container is closed and closed. . However, when the lid was opened, the heat was dissipated into the atmosphere, resulting in little heat retention effect.

However, some of the precision small electronic devices used by the Ground Self-Defense Force, such as personal computers for calculating shooting specifications, are carried outdoors in temperatures as cold as -25°C inside containers, and the containers are opened at the site. However, there are some products that must be used while being housed in a container body, with the temperature controlled to a predetermined level of heating and heat retention in response to the cold outside temperature environment. For this reason, conventional methods were used to keep the container warm by installing an electric heater inside the container body. When using this method, power is consumed when the output of the battery decreases, the operating power of important precision equipment such as small electronic equipment is reduced, and it is bulky and inconvenient to carry.In addition, it is necessary to prepare a spare battery. However, there were drawbacks such as the need to carry them with you.

[Purpose of invention]

The purpose of this invention is to store precision equipment, which does not operate properly unless it is kept at a certain temperature range, in a container and carry it around while keeping it at that temperature, and then to open the container outdoors in a cold region and carry the equipment. It is an object of the present invention to provide a container that can easily maintain the above-mentioned temperature state even during use, does not require a battery, is lightweight, and is convenient to carry.

[Structure of the idea]

In order to satisfy the purpose of the previous section, the present invention includes a support member made of a buffer insulation material fitted inside the container body,
In a heat-retaining container that forms a fitting space for precision equipment that requires temperature control and is housed in the support member, a heating element made of a heat-generating material that oxidizes and generates heat when it comes into contact with air, the main material of which is iron powder, is used. A housing recess for fitting and accommodating is provided at the bottom of the fitting space,
Required distance between the stored precision equipment and the heating element
The container is configured to be able to hold the stored precision equipment by forming a container body, and has a ventilation hole for allowing an appropriate amount of air from outside the container to flow into the storage recess through an air flow control valve provided in the container body. .

〔Example〕

In the figure, 1 is a container body, and 2 is a lid of the container body. Storage equipment support members 3 and 4 made of a buffer insulation material such as polyurethane foam are fitted into the main body 1 and lid 2, and the support members 3 are fitted to accommodate precision equipment that requires temperature control, such as a personal computer C. A joint space 5 is formed. 6 is a fitting space for the printer P.

The fitting space 5 of the personal computer C has at its bottom a housing recess 8 for accommodating a heating element 7 mainly made of iron powder which oxidizes and generates heat when exposed to air.

The depth of the accommodation recess 8 is formed so as to provide an appropriate distance between the heating element 7 accommodated in the accommodation recess 8 and the precision equipment C such as a personal computer accommodated in the fitting space 5. be.

Reference numeral 10 denotes an air vent through which air from outside the container necessary for oxidizing the heating element 7 flows into the container, and reference numeral 11 denotes an air flow rate control valve such as a stop valve. The amount of oxidation heat generated by the heating element 7 is increased or decreased by adjusting the amount of incoming air by operating the air flow rate control valve.

Reference numeral 12 denotes an accessory storage chamber formed in the buffer and heat insulating material 13 on the inner surface of the lid 2. The mass of the heating element 7 is increased or decreased to adjust the amount of heat generated depending on the correlation between the mass of the precision equipment to be heated, heat transfer characteristics, external environmental conditions, and heat retention temperature.

[Effect]

When the container is sealed, a small amount of air is stored in the container body 1 and the air flow control valve 11 of the container body 1 is slightly opened, taking into account the airtightness of the container body and the heat retention by the interior buffer insulation materials 3 and 4. A small amount of air flowing into the recess 8 causes the heating element 7 to oxidize and generate heat, and the heat is transferred between the heating element 7 in the accommodation recess 8 and the precision equipment C by radiant heat conduction.
Regarding precision equipment C, the equipment stored in the container in a sealed state is kept at an appropriate temperature with a small amount of oxidation calorific value, and the air flow rate is increased when the container is opened to use the equipment stored in the container. control valve 1
1 is opened wide and a large amount of air is supplied to the heating element 7.
In this case, a large amount of oxidation heat is obtained, and the radiant heat hits equipment C in the same way as above. The above-mentioned amount of heat and service life are adjusted so as to offset the amount of cooling caused by the cold air outside the container and to supply a sufficient amount of heat.

This adjustment allows accurate temperature control to be carried out simply and reliably using the amount of heating air and heating element calculated in advance.

[Effect of idea]

According to the present invention, precision equipment that does not operate properly unless kept within a certain temperature range can be kept in a container in a sealed state in a state where it can be used immediately even at an atmospheric temperature of, for example, -25°C, and The amount of heat required to heat and keep the equipment warm can be used for a considerable length of time when the lid of this container is opened and the container is stored in the main body of the container at atmospheric temperature. By making the most skillful use of the characteristics, it is possible to obtain a simple, reliable and safe heat-retaining device, which does not require a battery, is lightweight, and has the effect of providing a heat-retaining container that is convenient to carry.

[Brief explanation of the drawing]

The drawings show an embodiment of the heat-retaining container according to the present invention, with FIG. 1 being a longitudinal sectional front view and FIG. 2 being a longitudinal sectional side view. DESCRIPTION OF SYMBOLS 1... Container body, 2... Lid, 3... Support member, 5... Fitting space, 7... Heat generating element, 8... Accommodating recess.

Claims (1)

[Scope of utility model registration request] A heat-retaining container in which a support member formed of a buffer insulation material is fitted into the container body to form a fitting space for precision equipment that requires temperature control and is housed in the support member, the main material being iron powder, A housing recess for fitting and accommodating a heating element made of a heat generating material that generates heat by oxidation upon contact with air is provided at the bottom of the fitting space, and a necessary distance is provided between the stored precision equipment and the heating element. A heat-retaining container configured to hold the precision equipment stored therein, and having a ventilation hole for allowing an appropriate amount of air from outside the container to flow into the accommodation recess through an air flow control valve provided in the container body. .