JPH0422089B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electric dispensing pot for dispensing liquid stored in a container using an electric pump.

BACKGROUND ART Conventionally, this type of electric dispensing pot has been constructed as shown in FIG. A container 2 containing water 1 is sealed with a stopper lid 3, and pressurized air is sent into the container 2 with an electric pressurizing pump 5 through a pressurized air supply port 4 provided at the top of the container 2. The internal pressure of the container 2 is increased, and the pressure difference between the inside and outside of the container 2 causes the stopper cap 3 to close.
The water 1 is pushed up through the spout passage 6 formed in the spout 7 and sent to the spout 7, and the water 1 can be discharged to a position below the spout 7; 8 is a heater for heating the container 2; 9 is a casing.

Problems to be Solved by the Invention In such a conventional configuration, energization to the electric pressurizing pump 5 is turned on and off by manual operation of a switch (not shown), and the pressurization generated from the electric pressurizing pump 5 is turned on and off. It is selected whether to dispense or stop the dispensing by turning on and off the pressurized air, and since the pressurizing force is constant, the dispensing flow rate is constant. This is because if the pouring flow rate per unit time is set for pouring into a large-capacity container such as a pot, the flow rate will be too strong when pouring into a small container such as a coffee cup.
It's something that scatters. When the water 1 is heated by the heater 8 and becomes hot water, the splashed hot water may cause burns to the user, which is dangerous. However, if the pouring flow rate per unit time is set low to prevent boiling water from splashing when pouring into a small vessel, it will take too long to pour the required amount into a large capacity vessel. , it is not easy to use.

The present invention is an easy-to-use electric dispensing system that is safe because there is no splashing of liquid when dispensing into small-capacity containers, and also short in dispensing time even when dispensing large quantities into large-capacity containers. The purpose is to provide a formula pot.

Means for Solving the Problems The electric dispensing pot of the present invention is configured so that the liquid stored in the container is dispensed by an electric pump, and the first and second connections are connected according to the strength of the operating force. A self-resetting switch that switches to a state, and a power control circuit that controls the power of the electric pump depending on the connection state of the switch are provided, and the discharge flow rate of the electric pump is selected. .

Effect: According to this configuration, when the operating force of the self-resetting switch is adjusted to bring it into the first connected state, the rotational speed of the electric pump is changed to, for example, a low rotational speed via the power control circuit, and the rotational speed of the electric pump is changed to a low rotational speed to reduce the amount of power per unit time. When the output flow rate is small and the operating force is adjusted to the second connected state, the electric pump rotates at high speed and the output flow rate increases.

Embodiment Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 7.

FIG. 1 shows an electric circuit diagram of the electric dispensing pot of the present invention, FIG. 2 shows an external perspective view, and FIG. 3 shows a longitudinal sectional view. In FIGS. 2 and 3, a spout 11 is placed on the upper end of a cylindrical casing 10, and a third
As shown in the figure, a container 12 having a bottom is housed in the opening of the spout 11. Casing 1
A base 13 is attached to the lower end of 0. The upper opening of the spout 11 is covered with a lid 14, the rear part of the lid 14 is pivoted to the rear part of the spout 11 so that it can be opened and closed freely, and the front part of the lid 14 is covered with a lock button 1.
5 is locked to the front part of spout 11 to restrict opening. A guide hole 16 bored in the lower part of the container 12 is connected to the electric pump 1 through a waterproof packing 17.
The discharge port 20 of the electric pump 18 is connected to the suction port 19 of the electric pump 18, and the water is poured out from the spout 24 to the outside of the casing 10 through a water tube bushing 23 having a built-in outlet pipe 21 and an outflow prevention valve 22. 25
is a heater provided at the bottom of the container 12, 26 is a temperature regulator that detects the temperature of the container 12, 27 is a power supply plug, 28 is a steam port provided in the lid body 14,
It communicates with the inside of the container 12. Further, in the front part of the spout 11, there are first and second operation switches 2.
9 and 30 are provided.

Next, the structure of the power supply circuit for the heater 25 and the electric pump 18, and the first and second operation switches 29, 30 will be explained in detail based on FIG. 1 and FIGS. 4 to 7. When the first operation switch 29 is not operated, the common terminal C and the terminal NC of the first operation switch 29 are connected, and the commercial power supply 43 is applied to the series circuit of the heater 25 and the temperature controller 26. The water 31 stored inside the container 12 is heated to the set temperature of the temperature controller 26. When the first operation switch 29 is operated, the common terminal C and the terminal NC of the first operation switch 29 are connected to each other.
is turned off, the common terminal C and the terminal NO are connected, and the commercial power source 43 is applied to the series circuit of the heater 25, the bidirectional control rectifier 32 for the power control circuit, and the DC conversion circuit 33. . The DC conversion circuit 33 includes a rectifier diode 34 and a smoothing capacitor 3
5, and the power supply circuit of the motor 36 of the electric pump 18 is connected to both ends of the smoothing capacitor 35. The phase control circuit of the bidirectional control rectifying element 32 includes resistors 37 and 38, a second operation switch 30, a capacitor 39, and a trigger element 40.
It is made up of. The second operating switch 30 is a self-resetting switch, and when it is not operated, it is in the off state, the charging circuit for the capacitor 39 is turned off, the conduction angle of the bidirectional control rectifying element 32 becomes zero, and the electric pump 18 is in operation. do not.

When the second operating switch 30 is operated with a weak force, the second operating switch 30 moves to the first operating switch shown in FIG.
The capacitor 39 is charged through the series circuit of the resistors 37 and 38. Fifth
As shown in figure a, the terminal voltage of capacitor 39 V _c
When reaches the breakover voltage V _B0 of the trigger element 40, part of the charge in the capacitor 39 is discharged via the trigger element 40, and the pulse current obtained at this time makes the bidirectional control rectifier element 32 conductive.
The conduction angle α ₁ becomes larger than zero as shown by hatching 41, the output voltage level of the DC conversion circuit 33 becomes 6 volts as shown in FIG. be done.

When the second operating switch 30 is operated with strong force, the second operating switch 30 moves to the second operating switch shown in FIG.
is connected, the resistor 38 is short-circuited, and the capacitor 39 is charged only through the resistor 37.
The conduction angle α ₂ of the bidirectionally controlled rectifying element 32 in this case
As shown in FIG. 7a, the voltage becomes larger than the state in FIG. 5, and the output voltage level of the DC conversion circuit 33 reaches 12 volts as shown in FIG. ” is driven.

With this configuration, when pouring into a small vessel, the first operation switch 29 is operated and the second operation switch 30 is operated with a weak force.
Then, the motor 36 of the electric pump 18
is rotated at low speed, and the water (hot water) 31 stored in the container 12 is poured out at a small flow rate from the spout 24 through the water tube bushing 23, so that the hot water does not splash out. If pouring into a large container,
When the operation switch 29 is operated and the second operation switch 30 is operated with strong force, the motor 3
6 is poured out at a large flow rate by rotating the blade 42 at high speed, and the required amount can be poured out in a short time.

Furthermore, in the above embodiment, since the water 31 taken out from the bottom of the container 12 is sent out by the vanes 42 of the electric pump 18, when the liquid is drawn out, as in the case of the air pressurization type explained in the "Prior Art" section, There is no need for a mechanism to block the steam port 28, and the mechanism is simple.
Moreover, the operating load is small.

Effects of the Invention As described above, in the present invention, the power control circuit executes power control of the electric pump according to the connection state of the self-resetting switch that switches between the first and second connection states depending on the strength of the operating force. Since the discharge flow rate can be selected by adjusting the operating force of the self-resetting switch to reduce the dispensing flow rate per unit time when dispensing into a small-capacity vessel, boiling water can be By adjusting the operation force of the self-resetting switch to increase the flow rate for large-capacity vessels, it is possible to avoid dangerous situations such as overflowing and spilling. It is possible to dispense the required amount and is easy to use.

[Brief explanation of drawings]

FIG. 1 is an electric circuit diagram of an embodiment of the electric dispensing pot of the present invention, FIG. 2 is an external perspective view of the electric dispensing pot of the present invention, and FIG. 3 is a vertical sectional view of FIG. 2. Figure 4 shows the first self-resetting switch in Figure 1.
FIG. 5 is a voltage waveform diagram explaining the power control state in the first connection state, and FIG.
The figure is an explanatory diagram of the second connection state of the self-resetting switch in Figure 1, Figure 7 is a voltage waveform diagram explaining the power control state in the second connection state, and Figure 8 is a diagram of the conventional electric dispensing type. FIG. 3 is a vertical cross-sectional view of the pot. 12... Container, 18... Electric pump, 24... Spout, 25... Heater, 26... Temperature regulator, 30... Second operation switch [self-reset switch], 32
...Bidirectional control rectifier, 37, 38...Resistor, 3
9... Capacitor, 40... Trigger element.

Claims (1)

[Claims] 1. A self-resetting switch configured to dispense liquid stored in a container with an electric pump and switching between the first and second connection states depending on the strength of the operating force, and a self-resetting switch that switches between the first and second connection states depending on the connection state of the switch. and a power control circuit for controlling the electric power of the electric pump, the electric dispensing pot being configured to select the discharge flow rate of the electric pump.