JP2990567B2 - Electric jar pot with cooling function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric jar pot having a cooling function for cooling hot water or hot water.

[0002]

2. Description of the Related Art In recent years, tap water has not been directly drunk, but has been sterilized and degassed by boiling the tap water in advance. After taking it, a method of cooling it in a refrigerator and drinking it was used.

[0003]

However, in the above-mentioned conventional method, for example, 3 liters of hot water boiled to 100 ° C. is deprived of high heat with tap water to 30 to 40 ° C., and then transferred to a refrigerator to 10 ° C. It takes 6 to 7 hours to cool down to the extent that it takes a long time, and there is a problem that it is troublesome to transfer the container to the refrigerator, which is troublesome, and the invention has both functions of cooling and refrigeration and heating and warming. (For example, see Japanese Utility Model Publication No. 62-7223).
The structure is not simple, and there is a problem that it takes a long time to cool water by boiling.

The present invention solves the above-mentioned conventional problems. With a simple structure, boiling water can be cooled to a predetermined temperature in a short time , and after cooling , water at a set temperature can be used for a long time.
And to provide a cooling function electric pots that can be between supply.

[0005]

In order to achieve this object, an electric jar pot with a cooling function according to the present invention comprises a heating means for heating water in a container, a temperature sensor for measuring the temperature of the water, and a temperature sensor for measuring the temperature of the water. a temperature select button to switch the retained temperature of the water, the heat exchanger using the Peltier effect device (hereinafter referred to as P elements), an electric pump for moving water in the vessel
The electric pump is connected to the P element by direct current.
Not only during voltage application, but also when the water in the container
After cooling and stopping the application of DC voltage to the P element
Is also operated to circulate water to the heat exchanger .

[0006]

With this simple configuration, the water in the container can be boiled or the boiled water can be cooled to a predetermined temperature in a short time and discharged, and after cooling , the water can be set.
Water at different temperatures can be provided for a long time.

[0007]

An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a temperature selection button 2 is provided at the front of the exterior body 1, an intake port 3 is formed at the bottom of the exterior body 1 and an exhaust port 4 is formed at the rear, and water is provided inside. A container 6 for storing a liquid such as 5 is provided. Container 6 when closed
The upper part of the exterior body 1 is opened and closed by an upper lid 7 that seals the opening of the external body. Container 6 is placed on the bottom of container 6.
A heater 5 for heating water 5 stored in
The temperature sensor 9 which measures the temperature of this is provided. The electric pump 10 disposed at the bottom between the exterior body 1 and the container 6 is operated by rotating or pressing the operation knob 11 so that the water 5 in the container 6 is transferred to the container 6.
From the bottom through the pumping pipe 12 to the heat exchanger 13. The water 5 having passed through the heat exchanger 13 is discharged by the switching valve 14 into either the container 6 or the spout 15. The valve operation unit 16 that switches the switching valve 14 includes:
Normally, a switching valve 1 is provided so that water 5 flows to the upper part of the container 6.
Although the opening 4 is in the open state, the switching valve 14 can be switched so that the water 5 flows through the outlet 15 by operating the operation knob 11. Reference numeral 17 in the figure denotes a cooling fan that is driven by a motor 18 and blows air to the heat exchanger 13.

Next, the heat exchanger 13 will be described. FIG.
As shown in FIGS. 3 and 4, a heat exchange vessel 20 made of resin or stainless steel to which the radiation fin 19 is attached is provided with an inflow pipe 21 and an outflow pipe 22 for the water 5 circulated by the electric pump 10.
Is provided, and a partition wall 23 is provided at a central portion so that the water 5 can be entirely distributed. The heat exchange container 20 is fixed to the heat exchange plate 25 with screws A26 via the packing 24 to form a circulation flow path 27, which communicates with the inflow pipe 21 and the outflow pipe 22. ing. The heat exchange plate 25 needs to be made of a metal having good thermal conductivity such as aluminum and copper, and a surface that is in contact with the water 5 is subjected to a surface treatment having a high corrosion resistance. That is, when the material is aluminum having good thermal conductivity, the surface is subjected to alumite treatment or coating treatment with tetrafluoroethylene resin, and when the material is copper, the surface is chrome-plated. When the surface treatment is not performed on the heat exchange plate 25, a clat plate of aluminum and stainless steel, a clat plate of copper and stainless steel, or the like is used. Heat exchange container 2
No. 0 has a configuration in which the P element 28 is interposed between the heat dissipation fin 19 and the base surface 19a, and the P element 28 is tightened with the screw B29, so that the circulating water 5 and the air are heat-exchanged by close contact.

The operation of the electric jar pot with the cooling function configured as described above will be described below. Water 5 is placed in a container 6 and heated by a heater 8 to bring it to a boil. Here, when hot water is required, the operation knob 11 is operated to operate the electric pump 10, and water is pumped from the bottom of the container 6 to the switching valve 14 through the heat exchanger 13. By operating the operation knob 11, the switching valve 14 turns on the water 5.
Is switched to flow to the spout 15, so that the water 5 that has passed through the switching valve 14 is discharged from the spout 15 and can be supplied to the outside.

Next, when the temperature selection button 2 is operated,
Once, the water 5 is boiled as described above to sterilize and degas, but thereafter, a DC voltage is applied to the P element 28 until the temperature sensor 9 detects the set temperature set by the temperature selection button 2, and at the same time, The electric pump 10 and the motor 18 of the cooling fan 17 are also driven by applying a voltage. The water 5 pumped by the electric pump 10 flows into the heat exchanger 13 and
The heat is taken away by the element 28, and this heat is
And the heat is released by the cooling fan 17. The heat-exchanged water 5 is discharged from the upper part of the container 6 via the switching valve 14, and is quickly cooled while circulating. In this embodiment, 3 liters of boiling water can be cooled to 10 ° C. in about 4 hours. When the operation knob 11 is operated here, the operation knob 1
The valve operating unit 16 connected to the first unit 1 can switch the switching valve 14 so that water flows to the spout port 15 and discharge water to the outside. The air that exchanges heat with the water 5 enters through the intake port 3 at the bottom of the exterior body 1 and is exhausted from the exhaust port 4 behind the exterior body 1. The heat exchange container 20 is made of plastic such as polycarbonate or polypropylene which is not corroded by the water 5, or made of stainless steel. In addition, the surface of the heat exchange plate 25 that comes into contact with the circulating water 5 has
Since the surface treatment with strong corrosion resistance is performed, metal ions and the like do not dissolve into the circulating water 5 at all.

As described above, according to the present embodiment, the heater 8 for heating the water 5 in the container 6, the temperature sensor 9 for measuring the temperature of the water 5, and the temperature selection button for switching the temperature for keeping the water 5 warm 2, the heat exchanger 13 using the P element 28, the switching valve 14 for discharging the water 5 in the container 6 to either the water inlet 15 or the circulation flow path 27 to the heat exchanger 13, and the electric pump 10. By providing, with a simple structure,
Boil water in the container and discharge it from the spout 15,
Alternatively, the boiled water can be cooled to a predetermined temperature in a short time and discharged from the outlet 15.

[0013] Then, when the water 5 in the container 6 reaches a set temperature, for example 10 ° C., but to stop the application of the DC voltage of the P element 28, by thereafter operating the electric pump 10, in the room The water 5 in the pumping pipe 12 and the heat exchanger 13 which has been exposed to the warm atmosphere and the temperature in the heat exchanger 13 is constantly circulated and exchanged with the cold water 5 in the container 6, so that the water temperature in the circulation channel 27 is always constant. When the operation knob 11 is operated and the water 5 is discharged, the water 5 having the set temperature is discharged.
Can be supplied for a long time . Furthermore, since the water temperature in the circulation flow path 27 is not suddenly increased, the circulation is intermittent and sufficient, and the operation of the electric pump 10 can be performed intermittently to shorten the operation time and prolong the life of the electric pump 10. it can.

[0014]

As is apparent from the above description, the present invention provides a heating means for water in a container, a temperature sensor for measuring the temperature of the water, a temperature selection button for switching the temperature for keeping the water, a heat exchanger using the P element, provided with an electric pump for moving water in the container, the electric Pont
Not only during the application of the DC voltage to the P element,
The water in the container is cooled to a predetermined temperature,
Even after stopping the application of voltage, circulate water to the heat exchanger.
By adopting the configuration that setting, the boiled water can be cooled in a short time to a predetermined temperature, also after stopping the application of the DC voltage
Water of the specified temperature can be provided for a long time. Furthermore, the P element
Intermittent operation of the electric pump after stopping the application of DC voltage
To intermittently circulate water to the heat exchanger.
By shortening the operating time of the electric pump,
Can be lengthened.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing the concept of the configuration of an electric jar pot with a cooling function according to an embodiment of the present invention.

FIG. 2 is a front view showing a cross section of a part of the heat exchanger of the electric jar pot with the cooling function with the heat exchanger partially removed;

FIG. 3 is a side view of the heat exchanger.

FIG. 4 is a sectional view taken along line AA of FIG. 2;

[Explanation of symbols]

 2 Temperature selection button 6 Container 8 Heater (heating means) 9 Temperature sensor 10 Electric pump 11 Operation knob 13 Heat exchanger 14 Switching valve 28 Peltier effect element

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-1-145026 (JP, A) JP-A-4-259416 (JP, A) JP-A-4-121567 (JP, A) JP-A-4- 254178 (JP, A) JP-A-5-126406 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47J 27/21 101 F25B 21/02

Claims (2)

(57) [Claims] 1. A heating means for heating water in a container, a temperature sensor for measuring the temperature of the water, a temperature selection button for switching a heat retention temperature of the water, a heat exchanger using a Peltier effect element, An electric pump for moving water in the container, wherein the electric pump is provided with the Peltier effect.
Not only during the application of DC voltage to the element, but also
Is cooled to a predetermined temperature, and is directly transferred to the Peltier effect element.
Operating after stopping the application of the stream voltage, the heat exchanger
Electric jar pot with cooling function that circulates water . 2. The water in a container is cooled to a predetermined temperature and
After stopping the application of the DC voltage to the
Operating the electric pump intermittently to supply water to the heat exchanger.
The electric jar pot with a cooling function according to claim 1, wherein the electric jar is configured to intermittently circulate .