JPH0591948A - Electric water heater - Google Patents

Abstract

(57) [Summary] [Objective] In an electric water heater that uses an electric pump as a discharge means, the purpose is to prevent the risk of burns caused by discharge of hot water due to an erroneous operation, and to make it easy to use. And [Structure] When the lighting switch 21 is pressed, the lamp 22 is lit and one point W of the body mounting surface 15 is irradiated. Next, when the liquid lead-out operation switch 10 is turned on, the pump 5 is activated and hot water is discharged from the lead-out port 20 to the vicinity of a point W of the vessel installation surface 15. When the liquid lead-out operation switch 10 is turned off, the pump 5 stops. The irradiation of the lamp 22 is automatically turned off when left for a certain period of time. The pump 5 can be operated only while the lamp 22 emits light.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric water heater that heats and keeps a contained liquid and discharges it outside the body.

[0002]

2. Description of the Related Art A conventional electric water heater has a structure as shown in FIG. That is, it comprises a main body 1, a container 2 with an upper opening arranged in the main body 1, a lid 3 for covering the opening of the container 2, a heating means 4 such as a heater for heating the liquid in the container 2, and It has an electric pump 5 and a motor 6 which are liquid discharging means for guiding the liquid to the outside of the container. Then, by driving the pump 5, the liquid is led out to the outside of the container via the water pipe 8 which communicates with the outlet 7. The operation switch 10 is an operation means for on / off controlling the motor 6, and the operation switch 10 is alternately turned on and off every time it is operated. The operation knob 9 is arranged on the upper part of the body. The operation knob 9
A lighting switch 11 is provided near the. The lighting switch 11 is a switch of the lamp 12 which is a light source and has a safety function in association with the operation switch 10. That is, when the lighting switch 11 is pressed once, the lamp 12 is turned on, and when it is pressed again, the lamp 12 is turned off. When the lamp 12 is lit, the operation switch 1 is operated via the operation knob 9.
When 0 is turned on, the motor 6 operates, the pump 5 is driven, and hot water comes out from the outlet 7 via the water pipe 8. When the operation switch 10 is turned off after the desired hot water is obtained, the motor 6 stops and the hot water discharge stops. When the lighting switch 11 is pressed again to turn it off, the lamp 12 is turned off, and even if the operating knob 9 is operated, the motor 6 does not operate and hot water does not come out from the outlet 7. That is, the motor 6 operates only when the lighting switch 11 and the operation switch 10 are turned on at the same time. Control circuit 1 built in the main body 1
3 is an operation switch 10, a motor 6, and a lighting switch 11
And the lamp 12 described above.

In the figure, 14 is a cup for drinking, 15 is a container mounting surface on which the main body 1 is mounted, and 16 is a power cord.

[0004]

In such a conventional electric water heater, the lighting switch 11 is forgotten to be turned off on a daily basis. When the lamp 12 is lit, the operation knob 9 may be operated unintentionally to discharge the liquid in the container 2 from the outlet 7. If the liquid is hot water, burns or the like may occur. There was a risk of doing. Also,
When a relatively small container such as the cup 14 is placed on the container mounting surface 15 and the liquid is poured, the position at which the cup 14 is placed is the position W at which the liquid led out from the outlet 7 reaches the container mounting surface 15.
If it is deviated, there is a possibility that the liquid may be poured out of the cup 14 or may be poured on the peripheral surface of the cup 14 and scattered around the cup 14. Especially when the liquid is hot water, there is a risk of burns and the like.

Further, in a general use state, the outlet 7 is looked down obliquely from above, so it is difficult to understand the arrival position W of the liquid on the container mounting surface 15, and it is necessary to place it in a register. There is a problem that it is not easy to place the cup 14 without being displaced.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an electric water heater which prevents hot water from being discharged due to an erroneous operation of the operating knob.

[0007]

In order to achieve this object, the present invention provides a container for containing a liquid, a heating means for heating the liquid in the container, and a liquid discharge for discharging the liquid out of the container. Means, liquid deriving operation means for operating the liquid deriving means, a light source for irradiating the reached position of the derived liquid to the body installation surface or its vicinity, a light source switch for operating the light source to blink, and the liquid By controlling the lead-out operation means, the liquid lead-out means, the light source, and the light source switch, the light source is turned on for a certain period of time when the light source switch is operated or the operation of the liquid lead-out means is completed, and the light source is being turned on. And a control circuit that drives the liquid derivation means only when the liquid derivation operation means is operated.

[0008]

In this structure, the light source is automatically turned off after a lapse of a certain time after the light source switch is operated or after the operation of the liquid derivation means, and the liquid derivation means does not operate even if the liquid derivation operation means is operated. It is possible to prevent burns or the like due to an erroneous operation caused by forgetting to turn off the light source switch. In addition, by operating the light source switch first, it is possible to clearly inform the user of the position where the cup or the like is placed by the irradiation light from the light source, and while the light source is on, operating the operation knob of the liquid outlet means hot water will be generated. A warning can be issued to alert the user of the discharge, and attention can be prompted. Furthermore, when pouring a liquid into a relatively small vessel such as a cup or a vessel with a unique shape such as a teapot, the position where the vessel is placed can be clearly known by the irradiation light of the light source.

[0009]

【Example】

(Embodiment 1) Hereinafter, FIG. 1 and FIG.
Will be described with reference to. The same reference numerals are used for the same components as those shown in the conventional example.

Main body 1, container 2, lid 3, heating means 4, pump 5, motor 6, water tube 8, operation knob 9, operation switch 10 for drawing out liquid, cup 14, body installation surface 15, power cord 16 Are the same components as in the prior art embodiment. The member of the outlet port 20 is connected to the side of the water pipe 8 opposite to the side to which the pump 5 is connected, and opens vertically downward. The lighting switch 21 has a mechanism that is turned on only when the switch is pressed and turned off when the switch is released.
Is a substantially cylindrical case 23 arranged near the outlet 20
It is stored in one side. The light condensing member 24 is formed by a convex lens attached to the side of the case 23 opposite to the lamp 22. The irradiation light emitted from the lamp 22 is condensed by the condensing member 24 and reaches the body mounting surface 15. The arrival position of the irradiation light on the container installation surface 15 is set to be substantially the same as or near the arrival position W of the derived liquid to the container installation surface 15.

A control circuit 25 controls the motor 6, the operation switch 10, the lighting switch 21 and the lamp 22. The control contents are as follows.

The control switch 25 detects the change of state from off to on by pressing the lighting switch 21, and turns on the lamp 22. If the lighting switch 21 is pressed and the lamp 22 is left lit, the lamp 22 is turned off after a fixed time (for example, 10 seconds). When the operation switch 10 is turned on via the operation knob 9 while the lamp 22 is on, the motor 6 can be driven, and the pump 5 is interlocked to discharge hot water through the water pipe 8 and the outlet 20. .. As a result, the desired hot water can be obtained. Next, when the operation switch 10 is turned off via the operation knob 9, the motor 6
Stops and the pump 5 also stops in conjunction with this to stop hot water supply.
The control circuit 25 detects the change of the operation switch 10 from on to off, and turns off the lamp 22 for a certain period of time from that point. The motor 6 does not operate even if the operation knob 9 is operated to turn on the operation switch 9 after turning off the lamp 22. That is, while the lamp 22 is on, the operation switch 10
Is turned on, the motor 6 operates, and when the lamp 22 is off, the motor 6 does not operate even if the operation switch 10 is operated.

When the cup 14 is placed on the body mounting surface 15 and liquid is poured, first, the lighting switch 21 is operated to turn on the lamp 22. The irradiation light of the lamp 22 is condensed by the condensing member 24 and is substantially condensed on the installation surface W.
The cup 14 is placed at the position of the installation surface W illuminated by this irradiation light, and then the operation knob 9 is operated to operate the operation switch 1
When 0 is turned on, the pump 5 operates in conjunction with the motor 6 and the hot water in the container 2 is discharged from the outlet 20 via the water pipe 8 and the hot water can be reliably poured into the cup 14. Further, even when the cup 14 is held in the hand and poured, the trajectory of the boiling water and the trajectory of the irradiation light are substantially the same, so that the irradiation light irradiates almost the center of the bottom of the cup 14 and the liquid is aligned. Should be derived. Therefore, it is not necessary to lock the lighting switch 21 for ensuring safety after each hot water supply, and the lighting switch 21 is automatically locked. The operation is simple, and whether the hot water is discharged or not when the operation knob 9 is operated is determined by the lamp 22. By issuing the warning notification by using the irradiation light and indicating the delivery trajectory of the discharged hot water with the irradiation light, it is possible to configure an electric water heater without burns due to an erroneous operation.

In order to call attention, the lighting switch 2
The lamp 22 starts blinking when 1 is pressed, and is lighted when the operation switch 10 is in the ON state.
It may be blinked again after 0 has returned to the off state. Further, the lighting switch 21 and the lamp 22 do not have to be in the same closed circuit as long as they are turned on and off and turned on at the same time.

[0015]

EFFECTS OF THE INVENTION As is apparent from the above embodiments, according to the present invention, a liquid discharging means for discharging the liquid to the outside of the container, a liquid discharging operation means for operating the liquid discharging means, and a container for the discharged liquid. A light source that irradiates the vicinity of the arrival position of the body installation surface, and a switch that operates the light source. By configuring with a control circuit that drives the liquid deriving means only when the operating means is operated during lighting, the liquid deriving means automatically becomes the liquid deriving operating means after a certain time elapses after the light source is turned on by the switch. Even if only the liquid is operated, it will not operate, and the liquid in the container will not be discharged even if the liquid lead-out operating means is operated unintentionally. Also, when pouring a liquid into a relatively small container such as a cup or a peculiar shape such as a teapot, it is possible to clearly know the position where the container is placed by the irradiation light of the light source before pouring the liquid. When the liquid lead-out operation means is operated while the irradiation light is being emitted, it can also serve as a warning signal notifying that the liquid in the container may be discharged from the lead-out port.

[Brief description of drawings]

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

[FIG. 2] The same partial sectional view

FIG. 3 is a cross-sectional view of a conventional electric water heater.

[Explanation of symbols]

 2 Container 4 Heating Means 5 Pump (Liquid Deriving Means) 10 Operation Switch (Liquid Deriving Means) 21 Lighting Switch (Light Source Switch) 25 Control Circuit

Claims (1)

[Claims] 1. A container for containing a liquid, a heating means for heating the liquid in the container, a liquid deriving means for deriving the liquid to the outside of the container, and a liquid deriving operation means for operating the liquid deriving means. A light source for irradiating a position where the derived liquid arrives at or near the body installation surface, a light source switch for operating the light source, and a control circuit, the control circuit comprising the liquid derivation operation means and the liquid derivation means. Means, the light source, and the switch to control the liquid source operating means while the light source switch is operated or when the operation of the liquid outlet means is completed, and the liquid outlet operating means is operated while the light source is on. An electric water heater having a control function of driving the liquid outlet means only when