JP3175578B2 - 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 an electric water heater used in ordinary households.

[0002]

2. Description of the Related Art A conventional electric water heater of this type is shown in FIG.
The configuration was as shown in FIG. That is, the container 10
Reference numeral 1 denotes a cylindrical container with a bottom provided in the container 102,
A heating element 103 is fixed to the back side of the bottom of the container 1, a lid 104 is provided to cover the upper opening of the container, and an outlet 105 for guiding the liquid in the container 101 to the outside of the container 102, and one end of the outlet 105 Is provided with a discharge port 106 facing the outside of the body 102 and a check valve 108 is provided in a case portion 107 provided on the discharge port 106 side of the discharge path 105.
The sealing member 107a provided on the case portion 107 is brought into close contact with the housing 102 by sliding of the container 102 or pressure rise in the container 101. Further, the steam port 1 provided on the lid 104
When the steam valve 104b for preventing water flow from the container 04a slides on the container 102 or when the pressure inside the container 101 rises, the lid seal portion 1
A configuration was provided to prevent running water by making close contact with 04c.

[0005] In the pot shown in Japanese Utility Model Publication No. 60-24261 in FIG. 5, the water stop ball 20 closes the case pipe 21 to prevent the liquid from leaking when tilting or falling forward. Had a configuration.

[0004]

However, in the configuration of the above-described conventional electric water heater, when a liquid is stored in a rated amount, the check valve in the case does not slide beyond the inclined outflow angle in front of the body. In some cases, the liquid flowed from the outlet when the water was inclined.

[0005] Further, in the configuration of the pot disclosed in Japanese Utility Model Publication No. 60-24261, when used in an electric water heater, steam may leak if the body is greatly inclined when the internal pressure is increased. Was. Also, when falling to a position other than the front, hot water could spill out from the outlet.
In particular, in our electric water heater that keeps hot water at 98 ° C., since the inside is kept at a relatively high pressure, more reliable measures against liquid leakage and the like have been required.

An object of the present invention is to solve such a conventional problem, and it is an object of the present invention to provide a highly safe electric water heater that does not flow water from an outlet port at any angle. I do.

[0007]

In order to solve the above-mentioned problems, the present invention comprises: a bottomed cylindrical container for housing a liquid provided in a container; a heating element for heating the liquid in the container; covering the outlet passage leading to the outside from outlet of the upper portion near the unit body pumped liquid in the container, the upper opening in the said container
Lid and a steam valve to prevent water from flowing through the steam port provided in the lid
And the lead-out path is provided when the vehicle is inclined other than forward and when it falls down.
A substantially vertical case portion provided with a check valve for preventing water from flowing out from the outlet, and a substantially horizontal case pipe positioned between the case portion and the outlet.
The case pipe is inclined slightly upward toward the outlet and forwardly to an angle at which the vessel discharges fluid.
When it is tilted, it moves inside and drains the water from the outlet.
The water stopping ball is provided to prevent the water from flowing out when the ball is inclined forward, and the water stopping ball is in close contact with a seal portion provided on the outlet side of the case pipe. The stop valve is in close contact with a seal portion provided on the case pipe side of the case portion to prevent flowing water. Accordingly, it is possible to prevent the water from flowing out from the outlet port regardless of the angle of inclination / fall.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a bottomed cylindrical container for housing a liquid provided in a container, a heating element for heating the liquid in the container, and a container for pumping the liquid in the container. A lead-out path leading to the outside from a lead-out port near the upper part of the
A lid covering the upper opening, and a flow from a steam port provided in the lid
A steam valve for preventing water , wherein the outlet path is inclined other than in front.
A substantially vertical case portion provided with a check valve for preventing water from flowing out from the outlet at the time of leaning and falling, and a substantially horizontal case pipe located between the case portion and the outlet. The case pipe is inclined slightly upward toward the outlet, and the container body has an outflow of fluid.
When tilted forward to an angle that, derived by moving the internal
A water stop ball is provided to prevent water from flowing from the mouth .

Further, in the present invention, a plurality of projections serving as grooves for moving the water stopping balls are provided inside the case pipe.

In the present invention, the cross-sectional area of the case pipe is reduced as approaching the outlet side.

In the case where the water stopping ball and the check valve are provided as described above, when the water stopping ball is tilted forward, the water stopping ball adheres to the seal portion provided on the outlet port side of the case pipe to prevent water from flowing. When tilting to a position other than the above, the check valve is in close contact with a case seal portion provided on the case pipe side of the case portion and can prevent flowing water.
Even if the vehicle falls, safety can be increased without running water from the outlet.

Further, in the case where the projection is provided inside the case pipe, the movement of the water stopping ball is smooth, and it is possible to prevent the water stopping ball from coming into close contact with the seal provided on the case pipe except when necessary. it can.

In the configuration in which the cross-sectional area of the case pipe is reduced as approaching to the outlet, the turbulent flow which may occur while the liquid is guided from the outlet path to the case pipe governs the turbulent flow. The flow of the liquid derived from the outlet can be regulated.

[0014]

Embodiment (First Embodiment) FIG. 1 is a schematic overall view showing the configuration of all embodiments of the present invention. In FIG. 1, there is a bottomed cylindrical container 2 for storing a liquid inside a container 1, and a heating element 3 is fixed to the back side of the bottom surface of the container 2. Heats the liquid such as water contained in it. The lid 4 covers the upper opening of the container, and the steam port 4a provided in the lid 4
The steam valve 4b for preventing flowing water from coming into close contact with the lid seal portion 4c due to sliding of the container 1 or a rise in pressure in the container 2 prevents the flowing water. Then, the liquid in the container 2 heated by the heating element 3 flows out of the outlet 1 through the outlet 6 through the outlet 6.

FIG. 2 is a sectional view showing the vicinity of the case pipe portion of this embodiment having the above-mentioned structure. A case pipe 7 is provided at the outlet 6 side of the outlet path 5 at an angle smaller than the inclined outflow angle θ1 toward the front of the body 1.
A water stopping ball 8 that rolls inside by inclining the container 1 forward or the like is provided in the inside, and the water stopping ball 8 is provided on the outlet 6 side of the case pipe 7 when the container 1 is tilted forward. The sealing portion 7a can be tightly attached to prevent running water. The case portion 9 provided on the case pipe 7 side of the lead-out path 5 has a check valve 10, and the check valve 10 is provided inside the case portion 9 when the vehicle is inclined other than forward and when it falls down. By making close contact with 9a, running water can be prevented.
Therefore, by using the water stopping ball 8 and the check valve 10 in combination, the water can be prevented from flowing at any angle and the safety can be improved.

In FIG. 3, the case pipe 7 is provided with a projection 11. The provision of the projection 11 makes the movement of the water stopping ball 8 smooth, and the case 11 is provided on the case pipe 7 by the momentum at the time of discharging the liquid. The water stop ball 8 can be prevented from sticking to the seal portion 7a, and the water stop ball 8 operates only when necessary, such as when it falls down, so that the water stop ball 8 remains in close contact with the seal portion 7a and is normally used. Inconveniences such as inability to take a hot water at times can be eliminated.

In this embodiment, four projections 11 are provided. However, it is needless to say that three or more projections 11 can provide substantially the same effect.

In FIG. 2, the opening 12 of the case pipe 7 is configured to become smaller as approaching the outlet 6. That is, the cross-sectional area of the case pipe 7 is
By decreasing the diameter as the distance approaches a, even if a turbulent flow occurs while the liquid is guided from the outlet channel 5 to the case pipe 7, the turbulent flow can be controlled and rectified by gradually reducing the cross-sectional area. There is an effect that the rectified liquid can be led out from the outlet 6.

In FIG. 2, reference numeral 13 denotes a stopper located at an upper portion of the case portion 9 and has a role of preventing the water stop ball 8 from falling from the case pipe 7 to the case portion 9. Thereby, the water stop ball 8 can be always kept in the case pipe 7, and the operation of the water stop ball 8 can surely prevent the water from flowing out from the outlet 6 when the water falls down forward.

[0020]

As is apparent from the above embodiment, according to the first aspect of the present invention, when the water stopping ball and the check valve are operated together, the angle of the container body is set at any angle. In this case, since the liquid does not flow from the outlet, a highly safe electric water heater can be provided.

Further, when the projection is provided inside the case pipe as in the second aspect of the present invention, the movement of the water-stopping ball becomes smooth, so that the water-stopping ball is provided on the case pipe during normal use. An electric water heater that does not adhere to the seal portion can be provided.

When the opening area of the case pipe is reduced as approaching to the outlet port as in the third aspect of the present invention, an effect of rectifying turbulent flow that may occur while being guided from the outlet path to the case pipe. Electric kettle can be provided.

[Brief description of the drawings]

FIG. 1 is a schematic overall view of an electric water heater in the present embodiment.

FIG. 2 is a cross-sectional view of a case pipe portion of the electric water heater in the present embodiment.

FIG. 3 is a cross-sectional view of a case pipe portion of the electric water heater in the present embodiment.

FIG. 4 is a cross-sectional view of a conventional electric water heater.

FIG. 5 is a sectional view of a pot disclosed in Japanese Utility Model Publication No. 60-24261.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 102 Container body 2, 101 Container 3, 103 Heating element 5, 105 Outgoing path 6, 106 Outlet 7 Case pipe 7a Seal part 8 Water stopping ball 9, 107 Case part 10, 108 Check valve 11 Projection

Claims (3)

(57) [Claims] 1. A bottomed cylindrical container for housing a liquid provided in a container, a heating element for heating the liquid in the container, and a liquid in the vicinity of an upper portion of the container by pumping up the liquid in the container. Cover the outlet path leading from the outlet to the outside and the upper opening of the container.
Lid and a steam valve to prevent water from flowing through the steam port provided in the lid
And the lead-out path is provided when the vehicle is inclined other than forward and when it falls down.
A substantially vertical case portion provided with a check valve for preventing water from flowing out from the outlet, and a substantially horizontal case pipe positioned between the case portion and the outlet.
The case pipe is inclined slightly upward toward the outlet and forwardly to an angle at which the vessel discharges fluid.
When it is tilted, it moves inside and drains the water from the outlet.
An electric water heater equipped with a waterproof ball to prevent it. 2. The electric water heater according to claim 1, wherein a plurality of projections serving as moving grooves of the water stop ball are provided inside the case pipe. 3. The electric water heater according to claim 1, wherein the cross-sectional area of the case pipe is reduced as approaching the outlet side.