JPS61249418A - Electromotive jar pot - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric jar pot with an improved method of dispensing hot water.

BACKGROUND OF THE INVENTION Conventional electric jar pots of this type generally used a bellows pump driven by a motor to pump air into the container and pour out the liquid contained therein.

Problems to be Solved by the Invention However, in conventional jar pots, when the liquid contained in the medium bottle is hot water that has just been boiled, the pressure inside the medium bottle increases due to the vapor pressure of the hot water, and the discharge volume decreases. is higher than in non-boiling water. Therefore, when using the water immediately after boiling, more water than expected is poured out, so the electric pump must be rotated at a low speed, which requires the use of a transformer to lower the voltage or a speed reduction mechanism. As a result, the device has become complicated. In addition, when pouring out the contents, it was necessary to close the steam vent hole, and in this case, it was difficult to close the valve and adjust the amount of hot water.

The present invention solves these problems by changing the voltage applied to the motor according to the amount of depression of the push button.
To provide an electric jar pot capable of easily changing the discharge amount of hot water.

Means for Solving the Problems In order to solve the above problems, the present invention provides a solenoid for opening and closing the steam vent hole, and a tap is provided at an intermediate position of the heater consisting of a heating heater and a heat retention heater. A variable resistor that interlocks with the motor and push button is connected in series from the tap point, and a motor start switch is operated, and a solenoid is operated when the push button is operated, and then the pouring amount is adjusted according to the amount of depression of the push button. This is how it was done.

Effects According to the above configuration, when the push button is pressed, the solenoid first operates to close the τ steam vent, and the voltage applied to the motor gradually increases depending on the amount by which the push button is pressed, thereby increasing the amount of hot water discharged. Since the amount gradually increases, stable dispensing can be performed.

Embodiment One embodiment of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, reference numeral 1 denotes an exterior main body of a jar pot, and a container 2 for storing hot water is provided inside. Reference numeral 3 indicates an inner stopper fitted to seal the mouth of the container 2, and reference numeral 4 indicates an upper lid attached to the upper part of the exterior main body 1 so as to be able to be opened and closed. Reference numeral 5 denotes a spout, which communicates with a water pump 6 inserted into the container 2 through the inner stopper 3. 7 is a bellows pump provided in the upper lid 4; 8 is a motor that causes the bellows pump 7 to expand and contract; when the bellows pump 7 expands and contracts due to the rotation of this motor 8, the intake valve 9 and the air supply valve 1o are respectively opened. Air is pumped into the container 2 by alternately opening and closing.

11 is a solenoid, a piston ring 12 is inserted into this solenoid 11, and a diaphragm 13 is fixed to the end of the piston ring 12 in brackets. In this case, since the outer circumferential end of the diaphragm 13 is fixed and concave, the steam vent hole 14 moves as the piston ring 12 moves up and down.
can be opened and closed.

16 is a motor start switch for starting the motor 8; 16 is a variable resistor; both the variable resistor 16 and the motor start switch 16 are operated via a switch rod 18 by pressing a push button 17 for operation; It will be done. 1
Reference numeral 9 denotes a compression type spring, and this spring 19 always urges the switch rod 18 upward.

In FIG. 2, 20 is a heating heater, and this heating heater 2o is fixed to the lower side of the container 2 together with the heat-retaining heater 21. Reference numeral 22 denotes a temperature switch provided on the bottom surface of the container 2, and this temperature switch 22 performs switching when a predetermined temperature is reached. 23 is a switch for keeping warm.

B is a commercial power source, one end of the commercial power source B is connected to one end of the heater 2o, and the other end of the heater 2o is connected to the heater 21 and the temperature switch 22, and A tap is provided from the middle, and the motor 8, variable resistor 16, and motor starting switch 16 are connected in series from this tap point to the other end of the commercial power source B. Further, the solenoid 11 is connected between the connection point between the motor electromotive switch 15 and the variable resistor 16 and the other end of the power source B.

The operation in the above configuration will be explained. When pouring molten metal, push down the push button 17 to release the switch rod 18.
is lowered, the motor start switch 15 is turned on, and the motor 8 is energized.

The solenoid 11 is activated and the piston ring 12 is lowered, and this lowering causes the diaphragm 13 to expand and open the steam vent hole 1.
Block 4. When the push button 17 is further pushed from this state, the switch rod 18 reduces the resistance value of the variable resistor 16, so the rotation speed of the motor 8 gradually increases, and as a result, the amount of air sent into the container 2. The amount of hot water that can be discharged also increases. That is, by lightly touching the push button 17 and pushing it in, the steam vent hole 14 is closed.
Since the voltage can be gradually increased, a large amount of hot water will not be suddenly discharged unlike in the past.As described above, according to the present invention, when dispensing hot water, there is no need to press the push button. By pressing lightly and then pushing this push button, you can change the rotation speed of the motor and gradually increase the amount of air pumped into the container by the bellows pump, allowing the hot water in the container to reach its latent time. Even when pouring hot water immediately after
The amount of hot water discharged does not increase suddenly, and therefore there is no danger of burns. In addition, since the power supply for driving the motor can be a low-voltage power supply due to the partial voltage of the heater, a small, low-voltage power supply can be used.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an electric jar pot showing an embodiment of the present invention, and FIG. 2 is a circuit diagram of the same jar pot. 2... Container, 7... Bellows pump,
8...Motor, 11...Solenoid,
14...Steam vent hole, 16...Motor start switch %16 Old variable resistor, 17...
・Push button, 2o... Heater for heating.

Claims (1)

[Claims] An electric jar pot that uses a bellows pump driven by a motor to pump air into the container and pour out the liquid inside the container, is equipped with a solenoid that opens and closes a steam vent, and has a heater that includes a heater for heating and a heater for keeping warm. A tap is taken out from the middle position, and from this tap point, the variable resistor that works with the motor and push button is connected in series with the motor start switch.
The electric jar pot is configured to operate a solenoid when the push button is operated, and then adjust the pouring amount according to the amount of depression of the push button.