JP3167869B2 - Electric water heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container provided in a main body for storing water, heating means for heating the water in the container,
The present invention relates to an electric water heater having an electric pump for pouring hot water in the container heated by the heating means from a pouring hole provided in the main body.

[0002]

2. Description of the Related Art An example of a conventional electric water heater will be described with reference to FIG. A conventional electric water heater is a water heater main body 31.
A container 32 for storing water is provided therein, and a lid 33 for opening and closing the upper opening of the container 32 is provided on the upper portion of the water heater main body 31 so as to be openable and closable. A heater 34 for heating water and a temperature detector 35 for detecting the temperature of water in the container 32 are provided at the bottom of the container 32, and the hot water heated by the heater 34 flows out to the bottom of the container 32. Outflow pipe 36
Was connected. At one end of the outlet pipe 36, the container 3
An electric pump 37 for pouring hot water in 2 is connected,
One end of a pouring pipe 38 is connected to the electric pump 37,
Pouring pipe 4 having pouring port 39 at the other end of pouring pipe 38
0 was connected to one end.

[0003] A control board 41 provided with a control section for controlling the heater 34 and the electric pump is provided below the water heater main body 31, and the electric pump is provided in an upper cover 42 provided above the water heater main body 31. A pouring switch 3 for operating the 37 and pouring from the pouring port 39 is provided, and a pouring button 44 for operating the pouring switch 43 is provided on the upper outside of the water heater main body 31.

[0004] The lid 33 is provided with a steam port 45 for discharging steam generated in the container 32. Incidentally, 46
Is a base provided below the water heater main body 31.

[0005] When pouring hot water into a cup or the like, the cup is brought to the lower part of the pouring port 39 and a pouring button 44 is provided.
(Pouring switch 43) was pressed to operate electric pump 37, and pouring was performed from pouring port 39 to the cup.

[0006]

In the electric water heater having the above structure, there is only one pouring switch on the upper part of the main body of the water heater. Therefore, the pouring switch on the upper part of the main body of the water heater must always be operated to perform the pouring. It had to be performed, and the pouring operation was sometimes inconvenient. In addition, it is necessary to bring the cup or the like close to the pouring port and then operate the pouring switch, which requires two procedures.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a pouring switch for pouring by operating an electric pump on a side surface of a main body below the pouring port. It is an object of the present invention to easily perform pouring by pressing a pouring switch with a cup when a cup or the like is brought close to the lower part of the container.

[0008]

The electric water heater according to the present invention comprises a container provided in the main body for storing water, a heating means for heating the water in the container, and a heating means for heating the water in the container. An electric pump for pouring hot water in a container from a pouring port provided in the main body, and a first pouring switch for operating the electric pump to pour hot water on an upper surface of the main body,
A second pouring switch is provided on the side of the main body below the pouring port to operate the electric pump to perform pouring. Further, a changeover switch for switching the operable pouring switch to one of the first pouring switch and the second pouring switch is provided. The changeover switch is provided with a pouring stop position that does not switch to either the first pouring switch or the second pouring switch.

Further, the first pouring switch or the second pouring switch may be used.
A control unit is provided for enabling only the first operation of the pouring switch among the pouring switches.

Further, the first pouring switch or the second pouring switch may be used.
A display unit is provided for displaying the first operated pouring switch among the pouring switches.

[0011]

With the above-described electric water heater, when a cup or the like is brought close to the lower part of the pouring port for pouring, the second pouring switch is pressed with the cup to perform pouring. In addition, if the pouring switch operable by the changeover switch is switched to the first pouring switch, the pouring is not performed when the cup or the like is inadvertently brought close to the pouring port, and the first pouring switch is safe.
Depending on the location of the electric water heater of the pouring switch or the second pouring switch, the switch that cannot be operated is switched to the operable pouring switch from a pouring switch that can be operated. By switching the changeover switch to the pouring stop position, careless pouring is prevented.

Further, only the first operated pouring switch of the first pouring switch or the second pouring switch can be operated by the control section, and the operation of the other pouring switches is invalidated. Further, the first pouring switch operated is displayed to inform the user which of the first pouring switch and the second pouring switch is in the operable state.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electric water heater according to the present invention will be described with reference to FIG. As shown in FIG. 1, the electric water heater of the present invention is provided with a container 2 for storing water in a water heater main body 1, and a lid 3 for opening and closing an upper opening of the container 2 is provided above the water heater main body 1. Is provided. A heater 4 for heating water and a temperature detector 5 for detecting the temperature of water in the container 2 are provided at the bottom of the container 2, and the hot water heated by the heater 4 flows out to the bottom of the container 2. Outflow pipe 6 is connected. One end of the outflow pipe 6 is connected to an electric pump 7 for pouring hot water in the container 2, one end of a pouring pipe 8 is connected to the electric pump 7, and the other end of the pouring pipe 8 One end of a pouring pipe 10 having a pouring port 9 is connected.

The heater 3 is provided below the water heater main body 1.
And control board 11 provided with a control unit for controlling electric pump
The electric pump 7 is operated in an upper cover 12 provided on the upper portion of the water heater main body 1 so that the pouring port 9 is provided.
A first pouring switch 3 for pouring water from the inside, a first pouring button 14 for operating the first pouring switch 13 on the upper outer side of the water heater main body 1, and a water heater below the pouring port 9. A second pouring switch 15 (see FIG.
, And a second pouring button 16 for operating the second pouring switch 15 is provided outside the side surface of the water heater main body 1. And the first pouring button 1
A changeover switch 17 for switching between the operable pouring switches of the first pouring switch 13 and the second pouring switch 15 is provided in front of 4.

The lid 3 is provided with a steam port 18 for discharging steam generated in the container 2. Reference numeral 19 denotes a base provided at a lower portion of the water heater main body 1.

A first embodiment of the electric water heater according to the present invention will be described with reference to FIG. 2 showing an electric circuit diagram.
Is a power outlet, 21 is a fuse connected in series to a power line of the power outlet 20, and 9 is a water heater 9
a and a heater 9b, 22 is a controller, 2
Reference numeral 3 denotes a relay for boiling water provided in the control unit 22; 24, a triac for controlling energization of the heat retaining heater 9b; 25, a relay for driving the electric pump 7; and 26, a display board connected to the control unit 22. is there. The temperature detector (thermistor) 5 and the electric pump 7 are connected to the control unit 22, and the first pouring switch 13 and the second pouring switch 15 are connected to the display board 26. They are connected in parallel.

The operation of the first embodiment of the electric water heater having the above construction will be described. When the cup or the like is brought close to the pouring port 9 in order to pour hot water into the cup or the like, the water heater body 1 is used by the cup or the like.
The second pouring button 16 on the side surface of is pressed. When the second pouring switch 15 is turned on by the second pouring button 16, the driving relay 25 is turned on and the electric pump 7 is turned on.
Operates to pour hot water in the container 2 from the pouring port 9 into the cup or the like via the pouring pipe 8. When a container is placed on a desk or the like on which an electric water heater is placed and pouring is performed, the first pouring button 14 on the top of the water heater main body 1 is pressed and the first pouring switch 13 is turned on. Turn ON and pour.

A second embodiment of the electric kettle of the present invention will be described with reference to FIG. The second embodiment of the present invention has almost the same configuration as the first embodiment. The feature of the second embodiment is that a changeover switch 27 is connected to a display substrate 26 and the changeover switch 17 The first pouring switch 1
3 and the second pouring switch 15 are connected, and when the second pouring switch 15 is not operated due to the mounting position of the electric water heater or the like, the changeover switch 17 is switched to a state where only the first pouring switch 13 can be operated. By preventing the second pouring switch 15 from operating, careless pouring is prevented and danger such as burns is prevented.

Next, a third embodiment of the electric kettle of the present invention will be described with reference to FIG. The third embodiment of the present invention has almost the same configuration as the second embodiment, and the feature of the third embodiment is that a changeover switch 27 connected to a display board 26 is provided with a first note. There is provided a pouring stop position (contact point a) which does not switch to either the hot water switch 13 or the second pouring switch 15, and the changeover switch 27
Is switched to the pouring stop position, pouring due to erroneous operation in the non-use state of the electric water heater can be reliably prevented, and safety can be improved.

Further, a fourth embodiment of the electric kettle of the present invention will be described with reference to FIGS. The fourth embodiment of the present invention has almost the same configuration as the first embodiment, and
A feature of the embodiment is that the first pouring switch 13 or the second pouring switch 1 connected to the display substrate 26 is provided.
Only the first operation of the pouring switch is operated by the control unit 22.
And the operation of the other pouring switch is invalidated.

A display unit 2 is provided above the water heater main unit 1.
8, a first pouring button 14 of the first pouring switch 13 is provided on the display section 28, and a first pouring button 14 is provided.
A display 29a for lighting and displaying the operable state of the pouring switch 14 and a display 29b for lighting and displaying the operable state of the first pouring switch 14 are provided.

In the electric water heater having the above-described structure, only the first operation, for example, the first pouring switch 13 is operated by the control unit 22, the display 29 a of the display unit 28 is turned on, and the first pouring switch 13 is turned on. Indicates that only operations are allowed. At this time, even if the other second pouring switch 15 is operated, this operation is invalidated, and pouring is performed by operating the first pouring switch 13.

When the operation of the first pouring switch 13 is released, the display 29a of the display unit 28 is turned off to indicate that both pouring switches are operable, that is, in a standby state. In the above, the pouring switch operated first is brought into the operable state in the same manner as above, and the operation of the other pouring switch is invalidated.

The pouring by the operation of the pouring switch is performed by operating the electric pump 7 while the pouring switch is being operated to perform pouring, or by operating the pouring switch once and thereafter. Even when the operation of the pouring switch is released, the electric pump 7 may be operated for a certain period of time to pour a certain amount of hot water.

[0025]

Since the electric water heater of the present invention has the above-described configuration, when a cup or the like is brought close to the lower part of the pouring port for pouring, the second pouring switch is pressed by the cup. Since pouring can be performed by operating, pouring can be performed by simply bringing a cup or the like close to the pouring port to pour hot water, improving usability and operating with a changeover switch. If the possible pouring switch is switched to the first pouring switch, pouring is not performed when a cup or the like is inadvertently brought close to the pouring port, and the danger such as burns can be reliably prevented. . In addition, the usability is changed by switching from the inoperable pouring switch to the operable pouring switch according to the location of the electric water heater in the first pouring switch or the second pouring switch. Can be improved. By switching the changeover switch to the pouring stop position, careless pouring can be prevented and dangers such as burns can be reliably prevented.

Further, since only the pouring switch operated first by the control unit can be operated, the switching operation of the pouring switch can be automatically performed, and the trouble of the switching operation can be saved. An erroneous switching operation can be prevented. Also, by displaying the operable pouring switch, it is possible to prevent erroneous operation of the user,
Burns due to erroneous operations can be prevented.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of an electric water heater of the present invention.

FIG. 2 is an electric circuit diagram showing a first embodiment of the electric water heater of the present invention.

FIG. 3 is an electric circuit diagram showing a second embodiment of the electric water heater of the present invention.

FIG. 4 is an electric circuit diagram showing a third embodiment of the electric water heater of the present invention.

FIG. 5 is an electric circuit diagram showing a fourth embodiment of the electric water heater of the present invention.

FIG. 6 is a plan view showing a display unit of a fourth embodiment of the electric kettle of the present invention.

FIG. 7 is a flowchart showing the operation of a fourth embodiment of the electric kettle of the present invention.

FIG. 8 is a sectional view showing an embodiment of a conventional electric water heater.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water heater main body 2 Container 3 Lid 4 Heater 7 Electric pump 9 Pouring port 13 First pouring switch 14 First pouring button 15 Second pouring switch 16 Second pouring button 17 Changeover switch

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A47J 27/21 101

Claims (2)

(57) [Claims] 1. A container for storing water provided in the main body,
An electric kettle comprising: heating means for heating water in the container; and an electric pump for pouring hot water in the container heated by the heating means from a pouring hole provided in the main body. A first pouring switch is provided on the upper surface of the main body to operate the electric pump for pouring water. The electric pump connected in parallel with the first pouring switch is provided on a side surface of the main body below the pouring port. A second pouring switch for pouring the hot water is provided , and one of the first pouring switch and the second pouring switch is provided .
Control that allows only the first operation of the pouring switch
An electric water heater characterized by having a part . 2. The first pouring switch or the second pouring switch.
Displays the pouring switch that was operated first among the switches
The electric water heater according to claim 1, further comprising a display unit for performing the operation.