JPH07280410A - Portable electronic heat/cold insulating case - Google Patents

Abstract

PURPOSE:To provide a portable case with a heat/cold insulating function for carrying an object whose temperature requires to be controlled. CONSTITUTION:In a case 1 a thermally insulated receptacle 3 made of material with good thermal conductivity is enclosed by a thermally insulating material 2. To its side a thermally conductive block is attached. This thermally conductive block is of aluminum and transmits warm heat or cold heat from a temperature-controlling Peltier device to the thermally insulated receptacle 3. The case 1 and an inside lid 15 increase the insulating effect on the insulated receptacle 3. The temperature inside the insulated receptacle can be controlled accurately with the temperature inside evened out by a diffusion fan and measured by a temperature sensor 17. An appropriate temperature is set at a control 6 and the heating or cooling is manually or automatically controlled by a controller 4. For the release of heat from the temperature-controlling element a heat-releasing duct 7 with a radiation fan 16 and radiation fins is provided.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a cooling and heating function housed in a portable case for carrying body fluids, genes, organs, reagents, chemical substances, fresh foods, etc. that require temperature control. It is a thing. It can also be used as a cool box or a warm box for storing the above-mentioned items requiring temperature control.

[0002]

2. Description of the Related Art Conventionally, there has been a cooler box that is kept cool with dry ice or the like.

[0003]

However, this has the following drawbacks. (B) The temperature cannot be controlled to a constant temperature. (B) Accurate temperature cannot be set. (C) The internal temperature cannot be made uniform. (D) There was something to keep cold, but there was no equipment to keep warm. (E) Heat efficiency is not good The present invention was devised to solve the above drawbacks.

[0004]

[Means for Solving the Problem] The surface of the element is heated by connecting an adiabatic tank (3) and a Peltier element (8) for electronic cooling to a heat conduction block (9) and applying an electric current to the Peltier element (8). Or it is cooled. The heat is transferred to the heat conduction block (9) and the heat insulation tank (3) is overheated or cooled. Since the diffusion fan (10) is installed in the heat insulation tank (3), the temperature distribution in the heat insulation tank becomes uniform. By setting the set temperature with the operation unit (6) and controlling the current to the Peltier element (8), the temperature can be kept constant and accurate temperature control can be performed.

[0005]

The required temperature is set by the operating portion (6), and the temperature of the heat insulation tank (3) is detected by the temperature sensor (17).
It is constantly displayed on the thermometer (11). Peltier element (8)
When a voltage is applied to, cold or warm heat is generated at the boundary surface between the heat conduction block (9) and the Peltier element (8). The heat energy is transferred to the heat conduction block (9) and efficiently transferred to the heat insulation tank. Therefore, the heat insulation tank is heated or cooled. Although heating and cooling can be performed manually by the operation unit (6), switching control is automatically performed in comparison with the outside air temperature. During the cooling operation of the heat control element (8), the boundary surface with the metal plate (13) generates heat, but the heat dissipation duct (7) and the heat dissipation fins (14) installed therein,
It is forcedly circulated by the heat radiation fan (16).

[0006]

Embodiments of the present invention will be described below with reference to the drawings. The heat insulation tank (3) has a structure in which a material having a high heat conductivity such as aluminum is used and the periphery thereof is surrounded by a heat insulation material, and the heat conduction block (9) is attached to the side surface as shown in FIG. ing. The heat conduction block (9) may be on the front or the bottom, but is made of aluminum, which has good heat conduction and good workability. Accordingly, the hot heat or cold heat generated by the Peltier element of the temperature control element (8) is transferred to the heat insulating tank (3). The heat insulating tank has a structure in which the heat insulating effect is further enhanced by the inner lid (15) and the heat insulating material of the case (1). Urethane was used as the heat insulating material. The heat insulation tank (3) has a diffusion fan (10) for the purpose of making the temperature in the tank uniform,
The temperature sensor (17) is also configured to enable accurate temperature control and temperature measurement inside the adiabatic tank. The appropriate temperature of the contents is set by the operation unit (6), and heating or cooling is manually or automatically controlled in the same manner as the control unit (4) by comparing with the external temperature at that time. That is, it is realized by controlling the direction of current flow of the Peltier element. Therefore, heating and cooling can be performed by controlling the direction of current flow with one temperature control element. At this time, in order to efficiently dissipate heat from the Peltier element of the temperature control element (8), the heat dissipation duct (7) was attached. This heat radiation duct has a heat radiation fan (16) for forced circulation,
And a heat dissipation fin (14) having a large surface area. Although the heat dissipation duct (7) is U-shaped, it may be L-shaped or I-shaped. When using 100 V AC,
Since the battery (5) is charged while controlling heating and cooling operations, it is controlled by the battery during transportation. or,
By equipping the surface of the case (1) with solar cells,
In addition, it can be used for a long time and can be used outdoors.

[0007]

Since the present invention is constructed as described above, it has the following effects. (A) Accurate temperature control is possible (b) Easy to move and carry. (C) It is possible to keep warm or cool, but it is possible to equip a warm and cold storage in the same case. (D) The temperature control can be programmed with time by programming the temperature control by interlocking the clock.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is an arrow view of the present invention.

[Explanation of symbols] 1 case 2 heat insulating material 3 heat insulating tank 4 control unit 5 battery 6 operation unit 7 heat radiation duct 8 temperature control element 9 heat conduction block 10 diffusion fan 11 thermometer 12 metal plate 13 metal plate 14 heat radiation fin 15 middle Lid 16 Radiant fan 17 Temperature sensor 18 Accessory box

Claims (8)

[Claims] 1. A portable case (1), a heat insulating tank (3) provided in the case, and heating the heat insulating tank (3),
A temperature control element (8) for cooling, a temperature sensor (17) for detecting the temperature in the heat insulation tank (3), and this heat insulation tank (3)
Control means for controlling the temperature control element (8) so that the temperature is preset by the control section (4) for controlling heating and cooling of the 2. An application example of a Peltier device as a temperature control device (8) 3. A heat conduction block (9) for transmitting the heated and cooled temperature of a temperature control element (8) to an adiabatic tank (3). 4. A heat dissipation duct (7) for forced circulation is provided as a heat dissipation means for dissipating heat of the temperature control element (8), and in order to further enhance the heat dissipation effect, a heat dissipation fin (14) is provided in the heat dissipation duct (7). ) And heat radiation fan (16) 5. A means capable of realizing a heating tank and a cooling tank equipped with one heat insulation tank (3). 6. A control means capable of individually controlling a heating tank and a cooling tank by equipping a plurality of heat insulation tanks (3) with several temperature control elements (8). 7. A multi-power supply system for portability AC 100V. DC 12V for vehicle loading. 24V input, battery solar cell, 8. Control means for automatically controlling heating and cooling depending on a set temperature depending on a difference from an outside temperature.