JP2579311Y2 - Electric insulated pot - 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 insulation pot that keeps warm by boiling water in a container.

[0002]

2. Description of the Related Art In this kind of electric insulation pot, a container is provided in a pot body, and a heating element is attached to the container, and the heating element is used to sterilize water in the container once for the purpose of disinfection and descaling. Heat until boiling and then keep the water warm. Then, the hot water in the container can be appropriately poured out through the hot water supply mechanism.

[0003] In the conventional general electric insulation pot, it is usual to keep the hot water in the container at 95 ° C or higher. In recent years, however, the warming temperature of the hot water is used for extracting sencha and dissolving infant milk. There is provided one that can be set in multiple stages, as appropriate. For example, it is configured such that setting of a high temperature of 95 ° C. or more, setting of a medium temperature of about 85 ° C., and setting of a low temperature of about 70 ° C. are possible. When the medium temperature or low temperature is set, the once-boiled water is cooled by natural cooling, and after reaching the set temperature, the hot water is maintained at the set temperature by controlling the heating element. .

[0004]

However, it takes a considerable time for the boiling water to drop to a medium or low temperature by natural cooling. For example, boiling water at 85 ° C
It takes about 90 minutes to lower to 70 ° C., and about 180 minutes to lower to 70 ° C., which requires a long waiting time and is inconvenient to use.

The present invention has been made in view of such a point, and an object of the present invention is to shorten the cooling time of the boiling water to obtain a medium- or low-temperature water relatively quickly. An object of the present invention is to provide an electric insulation pot.

[0006]

According to the present invention, a container housed in a pot body is provided to achieve such an object.
In a device comprising a heating means for heating the water in the container once to boiling and then keeping the temperature at a set temperature in a plurality of stages, and a tapping means for pouring out the hot water in the container, an electric motor is provided inside the pot body. A circulation path for circulating and flowing the hot water in the container by the operation of the pump is provided, a cooling section is formed in the middle of the circulation path, an intake port and an exhaust port are respectively formed in the pot body, and an electric fan is provided inside the pot body. The operation of the electric fan allows air to be sucked into the pot body from the intake port and allows the air to flow out of the pot body from the exhaust port through the periphery of the cooling unit. is there.

[0007]

When the heat retaining temperature of the hot water is set at a medium temperature or a low temperature, the electric pump and the electric fan operate, and the operation of the electric pump causes the hot water in the container to sequentially circulate through the circulation path. In addition, the operation of the electric fan draws low-temperature air into the pot body from the intake port, and this air flows around the cooling portion of the circulation path, thereby forcibly cooling the hot water passing through the circulation path,
The fall of the hot water temperature in the container is promoted.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a cylindrical pot body, in which a container 2 is housed, a heating element 3 as a heating means is provided on the lower surface of the container 2, and a hot water temperature sensor 4 is provided on a lower side surface.
However, a boiling sensor 5 is further provided above the container 2.

A tapping pipe 6 extends from the bottom of the container 2, and rises along the outside of the container 2, and at the inside of a tapping cover 1 a provided at the front end of the upper end of the pot body 1. It is bent in a substantially inverted V-shape, and the opening at the tip is exposed as a tap hole 7 on the lower surface side of the tapping cover 1a.

A lid 9 for opening and closing the opening at the upper end of the container 2 is rotatably attached to the upper end of the pot body 1. A bellows-type air pump 10 is provided inside the lid 9 as a tapping means, and a push-type operating body 11 for operating the air pump 10 is provided at the center of the upper surface of the lid 9. When the air pump 10 is operated via the operation body 11, compressed air is sent from the air pump 10 into the container 2 to pressurize the liquid level of the hot water, and the hot water in the container 2 is discharged by the pressure. It is poured out from the tap 7 through 6.

A circulation pipe 14 constitutes a circulation path. One end of the circulation pipe 14 is connected to the bottom of the container 2 as an inlet 14a, and the other end is connected to the upper side of the container 2 as an outlet 14b. The inside of the circulation pipe 14 communicates with the inside of the container 2 by means of the electric pump 15.
Is provided. Further, a certain section in the middle of the circulation pipe 14 serves as a cooling section 14c as shown in FIG.
The cooling portion 14 c is bent substantially in a U-shape in a horizontal plane, and is arranged so that the cooling portion 14 c faces the inner bottom portion of the pot body 1. A large number of cooling fins 16 are provided on the outer peripheral surface of the cooling portion 14c.
… Is attached.

An intake port 18 is formed on the upper side surface of the pot body 1, and an exhaust port 19 is formed on the bottom surface of the pot body 1. An electric fan 2 is provided on the inner bottom of the pot body 1 so as to face the cooling portion 14c of the circulation pipe 14.
Air is drawn into the pot body 1 from the intake port 18 by the rotation of the electric fan 21, flows around the cooling section 14 c, and flows out from the exhaust port 19.

A mode selection switch 23 is provided on the upper surface of the hot water cover 1a. Can be set at low temperatures.

A control circuit section 24 is provided below the container 2, and a microcomputer 25 is provided in the control circuit section 24. As shown in FIG. The boiling sensor 5 and the mode selection switch 23 are connected to the output port of the heating element 3 via the heating element control circuit 26, the electric pump 15 via the pump driving circuit 27, and the electric fan 20 via the fan driving circuit 28, respectively. It is connected. Next, the operation will be described.

When water is stored in the container 2 and the mode selection switch 23 is operated to set the temperature of the hot water to a high temperature, the heating element 3 is controlled by the microcomputer 25 first. The water is heated until boiling. Then, the boiling is detected by the boiling sensor 5, and the control of the heating element 3 is switched by the signal of the detection, and the hot water in the container 2 is kept at a high temperature of 95 ° C. or higher. By operating the air pump 10 via the operating body 11 in this state, the hot water in the container 2 can be poured out of the tap hole 7.

When the medium temperature is maintained by the mode selection switch 23, the water in the container 2 is boiled by the heating by the heating element 3 and is detected by the boiling sensor 5 under the control of the microcomputer 25. The energization of the heating element 3 is stopped, and the electric pump 15 and the electric fan 20 are each driven.

The operation of the electric pump 15 causes the hot water in the container 2 to be sucked into the circulation pipe 14 from the inlet 14a, and the hot water flows through the circulation pipe 14 and flows out of the outlet 14b into the container 2. That is, the hot water in the container 2 is sequentially circulated through the circulation pipe 14.

The operation of the electric fan 20 causes the pot body 1 to move.
Is sucked into the pot body 1 from the intake port 18. Then, the air sequentially flows from the control circuit section 24 around the cooling section 14 c of the circulation pipe 14 and flows out of the pot body 1 from the exhaust port 19.

As described above, the cooling section 14c of the circulation pipe 14
Of the hot water in the container 2 passes through the cooling section 14c, so that the hot water is efficiently cooled by the low-temperature air, so that the temperature of the hot water in the container 2 decreases. Promoted. And the hot water temperature in the container 2 is about 85
When the temperature of the electric pump 15 has been lowered to the temperature, the signal is detected by the hot water temperature sensor 4 and a signal of this detection is inputted to the microcomputer 25.
0 is turned off and the heating element 3 is controlled so as to keep the hot water in the container 2 at around 85 ° C.

When the low-temperature heat retention is set by the mode selection switch 23, the temperature of the hot water in the container 2 becomes approximately 70%.
When the temperature has dropped to ° C., the power supply to the electric pump 15 and the electric fan 20 is stopped, and the heating element 3 is controlled so as to keep the hot water in the container 2 at around 70 ° C.

As described above, the hot water in the container 2 is
While flowing through the inside of the container 4, the hot water is forcibly cooled by the low-temperature air sucked by the operation of the electric fan 20, thereby shortening the descent time of the hot water temperature in the container 2. According to the experiment, in the conventional natural cooling, as described above, it takes about 90 minutes to reduce the boiling water to 85 ° C.
Takes about 180 minutes to lower the temperature to about 80 minutes, but in the case of the forced cooling of the present embodiment, about 30 minutes to lower to 85 ° C. and about 60 minutes to lower to 70 ° C. It took time, and it was confirmed that the descent time of the hot water temperature was surely reduced.

The low-temperature air sucked into the pot body 1 from the intake port 18 also comes into contact with the control circuit section 24. Therefore, the control circuit section 24 is cooled by the low-temperature air to control the control circuit section 24. This has the advantage that the temperature rise can be suppressed.

By the way, the electric heat-insulating pot is used by being mounted on a floor surface, a table surface or the like, and foreign matters such as dust are often scattered on the mounting surface. Here, if the intake port 18 of the pot body 1 is provided at the lower part of the pot body 1, when air outside the pot body 1 is sucked into the pot body 1 by the operation of the electric fan 20, Foreign matter on the mounting surface is sucked into the pot body 1 together with the air, and this foreign matter may cause an abnormality in the control circuit unit 24 or cause the electric pump 15 and the electric fan 20 to break down. However, in the present embodiment, the intake port 18 is provided at the upper part of the pot body 1, so that foreign matter on the mounting surface is not sucked into the pot body 1, thereby preventing the control circuit section 24 and failure of the electric pump 15 and the electric fan 20 can be prevented.

[0025]

As described above, according to the present invention, the hot water in the container can be forcibly cooled by the air sucked into the pot body, and the time required for the hot water to fall can be shortened. You can get medium or low temperature hot water quickly
Usability is improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of an electric insulation pot according to an embodiment of the present invention.

FIG. 2 is a plan view showing a cooling part of a circulation pipe in the electric heat retaining pot.

FIG. 3 is a block diagram showing a configuration of an electric circuit of the electric heat retaining pot.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pot body 2 ... Container 3 ... Heating element (heating means) 10 ... Air pump (hot water supply means) 14 ... Circulation pipe (circulation path) 14c ... Cooling unit 15 ... Electric pump 18 ... Intake port 19 ... Exhaust port 20 ... Electric fan

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-2-13413 (JP, A) JP-A-3-207315 (JP, A) (58) Fields investigated (Int.Cl. ⁶ , DB name) A47J 27/00-27/64

Claims (1)

(57) [Scope of request for utility model registration] 1. A container housed in a pot body, heating means for heating water in the container once to a boiling point, and keeping the temperature at a set temperature in a plurality of stages, and discharging the hot water in the container. A water circulation means for circulating hot water in the container by the operation of an electric pump in the interior of the pot body, forming a cooling part in the middle of the circulation path, and providing an intake port in the pot body. And an exhaust port, respectively, and an electric fan is provided inside the pot body. The operation of the electric fan sucks air from the intake port into the pot body, and passes the air through the periphery of the cooling unit to the exhaust port. An electric insulation pot that can be discharged from the pot body to the outside.