JPH0225673A - Thermos bottle having mechanism to make cold water - Google Patents

Abstract

PURPOSE:To reduce the thermal resistance existing between the thermo module and water to be cooled by disposing a cooling water passage having a large area integrally in a radiator block which is tightly in contact with the heat absorbing jointed surface of the thermo module so as to allow a direct heat exchange with water to be cooled. CONSTITUTION:Water W to be cooled is fed in a thermo bottle 3, and a radiator block 4 whose lower part works as a plug is inserted into the mouth of the thermo bottle. When the power switch S1 is closed after a DC power source is connected to the DC power source terminal PS with the polarity matched, the DC power is applied to the thermo module Th with the predetermined polarity to cause the first jointed surface 23 to absorb the heat so as to cool the radiator block 4. At the same time, a pump M is operated at a low speed to draw the water to be cooled in the thermo bottle 3 through a suction pipe 22 and a suction passage 17 and deliver same from its delivery side. The water exchanges heat and is cooled as it enters a cooling water passage 7 having a large area in the cooled radiator block 4 at a low speed through a Y-shaped pipe 12 and a circulating water rubber tube 13, and is pushed up to the water surface in the thermo bottle 3 as cold water jets WJ. Thereafter, the water becomes water W to be cooled and is again circulabed and cooled.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a thermos flask having a mechanism for producing cooling water using a thermo module.

(B) Conventional technology Conventionally, devices for producing cold water using a thermo module using a metal water container have been known. Tabletop pot j that can be made and patent application No. 143, 1983
No. 857 states, ``There are tabletop dual-type cold/warm pots A that can separate cold water and hot water at the same time, but all of them use a metal water container that is heat-insulated from the outside world by an insulating material. However, the insulation effect of ordinary insulation materials is not very good.Also, with the conventional cooling mechanism that cools the water inside the water container through double thermo modules,
The thermal resistance between them is also large. 1. Regarding the ability to keep warm and cold, it is extremely difficult to use a thermos flask, which is unrivaled even today, as a cooling element because the mouth of the bottle is narrow, and it is fragile and cannot be processed. The heat insulating materials used in artificial satellites and the like have an extremely excellent heat insulating effect, but due to the nature of their intended use, they are extremely expensive, and are not available for civilian use. Conventional devices of this type have low cooling efficiency due to a combination of various negative factors.

(c) Problems to be Solved by the Invention The present invention provides a cooling mechanism for using a narrow-mouthed thermos flask with high cold and heat retention ability as one element, and a cooling mechanism for using a thermos flask with a high ability to retain heat and cold, and a cooling mechanism that is provided between a thermo module and water to be cooled. The problem to be solved is to develop a new cooling mechanism that minimizes the thermal resistance.

(d) Means for Solving the Problems Here, the present invention provides cooling using the spout part of a narrow-mouthed thermos flask, and provides a radiator block whose lower part has an outer diameter within the range of the stopper diameter. At the same time, a cooling channel with a large total area is installed in the radiator block that is in direct contact with the heat-absorbing joint surface of the thermo module, and it is possible to directly exchange heat with the water to be cooled and circulate cooling. solve problems. Hereinafter, the configuration of one embodiment will be described in detail with reference to the accompanying drawings.

FIG. 1 is a longitudinal cross-sectional view of the main part of one embodiment, with some parts projected and shown together. FIG. 2 is also a circuit diagram, partially shown in blocks.

In Figure 1, 1 is the bottom of the main unit, 2 is the top of the main unit, 3 is a thermos flask, and T
h is a thermo module, and 23 in the second figure is its first joint surface, and 24 is its second joint surface. Reference numeral 4 designates a radiator block, which is made of a material with good heat conduction, aluminum in one embodiment, and has a cooling channel 7 with a large total area and a suction channel 17 in the same body, and is made of a material with good heat conduction, such as aluminum in one embodiment. The first joint surface 2 of the thermo module E9 which absorbs heat exchanges heat with the water to be cooled W passing through
3 in close contact with low thermal resistance.

Reference numeral 5 denotes a heat sink, which is also provided in close contact with the heat-generating second joint surface 24 of the thermo module Th, and is connected to the electric blower M.
1 for forced air cooling. 6 represents its rotor blade, and reference arrow AJ represents its airflow. M2 is an electric pump, and in one embodiment, a small and simple Persta Bomb, which is well known as a blood pump, is used, and this is provided at the tip of a rotating arm 8 fixed to the rotating shaft of a geared motor. The squeezing roller 9 squeezes the squeezing tube 10 in the traveling direction while pressing it against the pressing wall 11, and the pressure inside the squeezing tube 10 located behind the squeezing roller 9 becomes negative pressure, and that in the traveling direction is pressurized. . Since the inside of this type of pump is made up of only rubber tubes, it is possible to completely ensure the cleanliness of the water to be cooled W. In addition, this electric pump M2 includes a magnetic coupling impeller having a magnetic coupling hand using a permanent magnet for transmitting power between an independent impeller shaft inside a casing shielded from the outside and a rotating shaft of an external electric motor. Even if a car pump is used, the cleanliness of the cooled water W can be maintained. Further, the electric pump M2 is normally supplied with power from a low-speed drive power source 28 shown in the second diagram, and is driven at a low speed. 12 is a Y-shaped pipe that branches one waterway into three waterways, the inlet side is connected to the water discharge side of the electric pump M2, and the branched water outlet side has a circulation waterway rubber pipe 13 installed in parallel inside the outer frame 27. A rubber water supply pipe 14 is connected, and a closing pin 16 fixed to the tip of the plunger 15 is provided between the rubber tubes 13 and 14. The closing pin 16 is normally closed by a biased pressing spring 18. presses and closes the water supply channel rubber pipe 14 against the outer frame 27, and when one water supply button is pressed, the linked water supply switch S3 is engaged, and the plunger 15 is energized by the electromagnetic force of the connected solenoid So. It overcomes the applied pressure spring 18 and is attracted, and the position of the closing pin 16 is switched to close the water supply waterway rubber pipe 1.
4 is opened, and the circulation waterway rubber pipe 13 is pressed and closed. When the pressure on the water supply button is released, the water supply switch S3 is opened, the solenoid So is demagnetized, and the closing pin 16 is restored. This Y-shaped pipe 12, the circulation waterway rubber pipe 13, the water supply waterway rubber pipe 14, the closing pin 16, the pressing spring 18, and the outer frame 27 constitute a waterway switching rubber pipe valve. Since the inside of the valve is made up of only a rubber tube, it is possible to ensure that the water inside the valve is clean. This also means that A's waterway is always open and B's waterway is always open.
Even if a general-purpose waterway switching valve is used, which can block the waterway A and open the waterway B electrically or manually as needed, the overall operation will not change. In this case, it is necessary to ensure that the water inside the valve is clean. Further, in this embodiment, the closing pin 16 is operated electrically by the plunger 15 and the solenoid So, but it may also be operated manually by mechanically interlocking with the water supply button 19. 2o is a thermoswitch provided in close contact with the radiator block 4, and has an upper limit set for the temperature of the first joint surface 23, and when this exceeds the upper limit, the circuit is opened to prevent the thermomodule from being destroyed. 21
22 is a water supply pipe, 22 is a water suction pipe, W is water to be cooled, and WJ is a cooling water flow group. A limiter 25 is provided in close contact with the heat sink 5, and sets an upper limit for the temperature of the second bonding surface 24. When the temperature exceeds the set value, the circuit is opened to prevent the thermo module Th from being destroyed. 26 is a heat insulating material. In Fig. 2, ps is a DC power supply terminal, SL is a power switch, f is a fuse, and S2 is a power supply polarity switch to change the polarity of the DC power applied to the thermo module. The bonding surface may generate heat, or the first bonding surface may generate heat and the second bonding surface may absorb heat. Arrow C is the cooling (heat absorption) position, arrow H is the heating (heat generation) position, Dl is the cooling display light emitting diode, D2 is the heating display light emitting diode,
The cooling and heating are each based on the action of the first joint surface. Reference numeral 28 is a low-speed drive power source that supplies power to the electric pump M2. D3 and D4 are backflow blocking diodes, and the others are the same as in FIG.

(e) Operation Now, put the water to be cooled W into the thermos flask 3, insert the lower part of the radiator block 4 into the mouth of the thermos flask 3 using the stopper, match the polarity with the DC power supply terminal PS, connect the DC power supply, and then connect the Regarding switch S1, power supply plus → power switch S1
→Fuse f-+Polarity changeover switch S2 →Limiter 25→Thermo module E →Polarity changeover switch S
2 -> thermo switch 20 -> power supply negative, a DC power supply with a preset polarity is applied to the thermo module E9, the first joint surface 23 absorbs heat, and the radiator block 4 is cooled. At the same time, low-speed drive power is supplied to the electric pump M2 from the low-speed drive power supply 28 connected to the power supply via the backflow blocking diode D3, and the pump M
2 is driven at low speed, the cooled water W inside the thermos flask 3 is sucked up from the water suction pipe 22 through the suction channel 17 through the water suction side of the electric pump M2, and is pushed out from the water discharge side, forming a Y-shape. Through the pipe 12 and the circulation waterway rubber pipe 13, the cooled water flows slowly into the cooling water N7 having a large total area of the cooled radiator block 4, and is cooled by heat exchange.
It forms a cooling water flow group WJ and is pushed out onto the water surface in the thermos flask 3, convects downward toward the bottom of the thermos flask 3, and then becomes cooled water W again and is absorbed from the water suction pipe 22, where it is circulated and cooled through the above-mentioned path. Ru. When water is supplied, when the water supply button 19 is pressed, the linked water supply switch S3 is closed, power is supplied to the solenoid SO, which becomes an electromagnet, cancels the bias of the pressure spring 18, attracts the plunger 15, and removes the blockage fixed to the tip. The circulation waterway rubber pipe 13 is closed by the bottle 16, the water supply waterway rubber pipe 14 is opened, and at the same time, power is supplied from the closed water supply switch S3 to the electric pump M2 via the backflow prevention diode D4, and the pump M2 is activated. When the 9 water supply button 19, which is driven at high speed and promptly supplies cold water to the outside, is released, the water channel switching rubber tube valve is restored and the cooled water W is also returned to the circulation cooling path.

Next, when the power supply polarity changeover switch S2 is switched to the position indicated by the arrow H and the polarity of the power applied to the thermomodule Th is reversed, a flow of electrons in the opposite direction is generated inside the thermomodule Th, and the first junction When the surface 23 generates heat, the cooling operation is replaced with a heating operation, and the water to be cooled W inside the thermos flask 3 can be heated inversely to make hot water. In this case, words may be interchanged, such as heat absorption to heat generation, cooling to heating, heat absorption to heat radiation, forced air cooling to forced air temperature, cold water to hot water, etc., but it is easy for those skilled in the art to understand from the above explanation of the action of producing cold water. I assume that you can understand this, and since a detailed explanation of the process of producing hot water would be complicated, I will stop here.

(F) Effects of the Invention As detailed above, the thermos with a mechanism for producing cold water according to one embodiment of the present invention has a disadvantage that the heat insulation effect of the conventional metal water container using a heat insulating material is poor. This method can greatly improve cooling efficiency by eliminating various drawbacks such as the high thermal resistance between the first joint surface of the thermo module and the water to be cooled, and the effect of implementing this is significant. It is.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the main part of one embodiment, with some parts projected and shown together. FIG. 2 is also a circuit diagram, partially shown in blocks. In Figure 1, 3 is a thermos flask, Th is a thermo module, 4 is a radiator block, Ml is an electric blower, 7 is a cooling waterway,
M2 is an electric pump, 13 is a circulation waterway rubber pipe, 14 is a water supply waterway rubber pipe, 16 is a blocking bottle, 18 is a pressure spring, So is a solenoid, 15 is a plunger, 17 is a suction channel, 1 is a water supply button, 22 is Water suction pipe, W is water to be cooled, WJ is a cooling water flow group, 26 is a heat insulator, 82 is a power supply polarity switch in Fig. 2, arrow C is a cooling position, arrow H is a heating position, S3
2 is a water supply switch, 23 is a first joint surface, 24 is a second joint surface, 2'8 is a low-speed drive power source, and the other parts are the same as in FIG. 1.

Claims (1)

[Claims] 1. A radiator block equipped with cooling channels and suction channels having a large total area is provided in close contact with the first joint surface of a cooling thermoelectric element pair group (hereinafter referred to as thermo module), and a water absorption An electric pump that sucks water from a pipe through a suction channel and can vary its driving speed as needed, is connected to this water discharge side and works in conjunction with a water supply button when water is supplied.Normally, the circulation channel is open and the supply channel is blocked. A waterway switching valve is installed, and the lower part of the radiator block of the upper structure of the main body, in which the circulation waterway of the valve is connected to the cooling waterway and the water supply waterway is connected to the water supply pipe, is inserted as a stopper into the mouth of the thermos flask provided in the lower part of the main body. By applying a DC power supply with a preset polarity to the thermo module, the first joint surface absorbs heat and cools the radiator block, and at the same time, by driving the electric pump at low speed, suction is drawn from inside the thermos flask. of the radiator block where the cooled water is cooled.
The water slowly flows into the large cooling channel, where it exchanges heat and is cooled. It is pushed out onto the water surface in the thermos as cooling water, convects downward toward the bottom of the thermos, and then becomes cooled water again. Water is absorbed by the water suction pipe and circulated and cooled through the above-mentioned path. When water is to be supplied, when the water supply button is pressed, the linked waterway switching valve is switched, the circulation waterway is blocked and the supply waterway is opened, and at the same time the electric pump is driven at high speed. , a thermos flask with a mechanism for producing cooling water that is configured to quickly supply cooling water to the outside. 2. A power polarity switch is installed to change the polarity of the power applied to the thermo module and generate heat on the first joint surface, replacing the cooling operation with a heating operation, heating the water inside the thermos flask and creating hot water. A thermos flask having a mechanism for producing cooling water according to claim 1, which is constructed so that it can be used for both purposes. 3. A thermos flask having a mechanism for producing cold water according to claims 1 to 2, which uses a peristaltic pump or a magnetically coupled impeller pump as the electric pump and is configured to ensure the purity of the water to be cooled inside. . 4. A thermos flask having a mechanism for producing cooling water according to claims 1 to 3, which uses a water passage switching rubber pipe valve as the water passage switching valve and is configured to ensure the purity of the water to be cooled inside. .