JPS623085Y2 - - Google Patents

Description

[Detailed explanation of the invention] Traditionally, thermos bottles have been designed primarily for heat retention, and are made of a double-layered container made of an insulating material such as vacuum and glass or stainless steel. It is used to maintain the temperature of cold water, cold liquid, etc. for several hours. However, when traveling long distances for half a day or more than a day, it is difficult to maintain the same temperature at all times.

Therefore, thermos bottles with electric heaters were devised, and products that can boil water when needed have begun to be manufactured. However, although this method is convenient in places with electrical equipment (electrical outlets), it is completely useless in places without such equipment, such as in the fields, mountains, and beaches. Furthermore, simply heating a container heat-insulated by a vacuum or other insulating material from the outside cannot warm the liquid inside.

In the thermos bottle of the present invention, a heat pipe having a heat dissipating part (or heat absorbing part) A inside and a heating part (or cooling part) B outside indirectly penetrates the container, and the penetrating part is airtightly bonded (or glued). ) structure.

For example, in the case of boiling water, the external B of the heat pipe, that is, the heat transfer receiver, is ignited (using a piezoelectric method, etc.) to the gas released from the gas cylinder through the aperture.
When heated, the heat medium (water, etc.) inside the heat pipe increases in temperature and pressure, and the liquid (water) inside the container is heated in part A and becomes hot water. When the hot water rises to the specified value, it will be displayed on the temperature display. Normally, a thermos bottle has a volume of about 1 to 2, and the calories required to boil that volume of water to about 90℃ are 80 to 160 Kcal, and the time required is 5.
If it takes ~6 minutes, the amount of heat will be around 1000~1700Kcal/H (the area of the heat pipe should be selected according to the container), and a portable gas lighter will be sufficient. Heat pipes can also be used for water. If you are using a thermos with a heat pipe that is intended for hot water at around 90°C, a water bottle is suitable because it does not overheat the water. For example, if the temperature inside the heat pipe is suppressed to about 150℃, the heat pipe surface area will be 70 to 120cm2 for water with a capacity of 1 to ² , and the required heat amount for hot water of 90℃ is as follows.
The required time is sufficient. However, in order to keep the temperature at about 150°C, it is necessary to regulate the gas flame, which requires measures such as controlling the opening of the gas outlet and controlling the amount of heat received. This idea is especially necessary from the perspective of preventing the danger of dry firing.
One example is controlling the amount of heat received in a heat pipe by moving the heat receiving plate 7 using the shape memory metal 5 in FIG. 1, or controlling the aperture opening of the gas outlet using the shape memory metal (not shown) connected to the knob 6. It is.

The lid, spout, or spout receiver is equipped with an internal temperature indicator such as a thermostat or liquid injection type (a liquid crystal thermometer can also be used if a conductive material with low thermal conductivity is used) to indicate the water temperature or a specified value. Display that it has arrived.

In Fig. 1, in order to easily heat the other end B of the heat pipe 2 externally, a heat medium receiver 3 made of a thin cylindrical pressure-resistant container is integrally connected to the heat pipe B, and steam and return water are The separator 4 is connected to the heat transfer receiver 3.
It has a structure that can fully demonstrate the performance of the heat pipe installed inside the thermos bottle, and it has a compact shape that can be used as a thermos flask.

In addition, the heat pipe 2, heat medium receiver 3, and separator 4 can be removed and installed, and if these are removed and the blind lid is replaced, the heat pipe 2, low temperature case 8, and upper lid can be replaced for cooling. It can also be used as a cooling thermos flask as shown in Figure 2. Furthermore, in order to suppress the temperature inside the heat pipe to a specified value and regulate the internal pressure, a heat medium receiver 3 is provided with a shape memory metal 5.
An example of a structure is shown in which the heat receiving plate 7 is separated from the bottom surface of the heat medium receiver 3 to control the amount of heat received by the heat medium receiver 3 when the temperature reaches a specified temperature.

In addition, if it is necessary to keep the water warm for a long time after the water temperature reaches the specified value, the medium liquid will accumulate in the cylindrical medium liquid receiver 3 at the lower end due to gravity and capillary phenomenon in the liquid state. Although there is no rapid backflow of heat, in order to prevent heat radiation from the bottom of the heating section 3 due to heat conduction, insulating material (heat-resistant resin, asbestos cloth,
A bottom cover with a lid made of glass fiber (composite material such as glass fiber, etc.) is included.

For example, this bottom cover is made by lining the inner surface of an iron plate with a cross-sectional material, and the installation method is such that it can be easily attached and removed by utilizing the spring action of the iron plate, and a rotating ring (plate) etc. is attached to the back side. It should be convenient to handle.

In the case of a type that covers the cylinder from the outside, the bottom cover is structured to simultaneously cover the air hole and cylinder removal hole of the cylindrical medium liquid receiver 3 shown in FIG.

Furthermore, in the actual design, in order to prevent performance deterioration due to deterioration of the medium (e.g. generation of hydrogen gas), a hole for removing the medium is provided at the lowest part of the cylindrical medium liquid receiver 3, and a threaded plug (metallic Practical considerations are necessary, such as sealing with a gasket, metal jacket, etc.) and making it possible to easily exchange the medium.

In Figure 2, the other end B of the cooling heat pipe 2 is led into a low temperature case 8, and dry ice is placed inside this case.
This thermos flask is equipped with a heat pipe for cooling and has a structure in which the liquid in the container 1 can be cooled by filling it with ice or the like. Case 8 is sealed with a double layer of heat insulating material. By cooling the refrigerant receiver 3 formed at the other end B of the cooling heat pipe 2 with dry ice, the liquid in the container 1 can be cooled to about 5 to 10° C. and can also be kept cold. Of course, the refrigerant in the heat pipe for cooling must be different from that for heating, such as fluorocarbon or butane, and must be compatible with the required temperature.

As described above, the present invention uses a heat pipe in a thermos bottle, and the heating part (or cooling part) is a cylindrical (or conical or flask) shaped heating medium (or refrigerant).
It has a compact structure as a thermos flask, and if you use it for boiling water, you can easily get hot water in any place, and if you use it for cooling, you can easily get cold water or cold liquid with dry ice. Moreover, the liquid in the container can be kept cold for a long time. If ice is directly added to liquids such as coffee, tea, and juice, the concentration will be diluted and the taste will be bad, but by using the proposed thermos bottle, you can enjoy the highly concentrated and chilled liquid, which has an effect that cannot be obtained by directly adding it. be able to.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the lower part of a thermos flask with a heat pipe for boiling water.The heat pipe uses a fin-shaped heat pipe to shorten its length so that even a small amount of liquid can be heated, and is indirectly (removably) attached to the container 1. An example is shown below. FIG. 2 is a longitudinal cross-sectional view of a thermos flask with a cooling heat pipe, showing an example of a case where the heat pipe is indirectly bonded to the container through a stopper. 1... Container, 2... Heat pipe (or cooling heat pipe), 3... Heat medium (or refrigerant) receiver, 4... Separator, 5... Shape memory metal, 6
...Knob, 7...Heat receiving plate, 8...Low temperature case,
9...Insulating material (vacuum, etc.), 10...Insulating vibration absorbing material, 11...Insulating material (baking or adhesion, etc.), 1
2...Heat-resistant sealing material, 13...Temperature indicator, 14
... Air hole and cylinder removal hole, 15 ... Piezoelectric ignition device, 16 ... Gas cylinder, 17 ... Cap nut, 18 ... Ventilation hole (2 places on the left and right).

Claims (1)

[Scope of utility model registration request] One end A of the cooling heat pipe is in contact with the liquid in the container, and the other end B is guided outside the container to form a cylindrical, conical, or flask-shaped refrigerant receiver there, and the container has a double structure with heat insulating material. A thermos bottle with a cooling heat pipe, in which the container and the cooling heat pipe are indirectly bonded, and a low-temperature case is provided around the refrigerant receiver.