JPH05111429A - Electric water heater - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a circulating water purification structure in an electric water heater that can more efficiently remove unnecessary components in the contained liquid, has high reliability and safety, and does not impair the operational feeling. The purpose is to [Structure] In the middle of a series of paths connecting the lower part of the container 2 and the outlet 15 to the outside of the body, the path is branched to communicate with the upper part of the container 2, and the valve body 11 is provided at the branching part. By the operation of the valve element 11, the lower portion of the container 2 and the outlet 1
It is possible to select either the communication state with the container 5 or the communication state between the lower part and the upper part of the container 2, and in the middle of the circulation path from the lower part of the container 2 to the upper part, or near the outlet of the circulation path to the upper part of the container 2. Case 16 containing water purification agent 17
And the operation of the operating portion composed of the knob 8 and the switch 7 and the like is made into a rotational movement, and this behavior is converted into a linear movement and transmitted to the valve body 11 to operate the valve body 11. ..

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 In recent years, interest in safety, taste, odor and the like of drinking water has increased, and products such as water purifiers have come to the forefront. Among electric water heaters, more and more electric water heaters have the function of extending the boiling time and increasing the removal rate of chlorine and the like in tap water.

A conventional electric water heater will be described below. An example of a schematic configuration of a conventional electric water heater is as shown in FIG. 7, where 41 is a main body, 42 is a container with an upper surface opening arranged in the main body 41, and 43 is a lid that covers the opening of the container 42. A body, 44 is a heating element for heating the liquid in the container.
Reference numeral 45 denotes an electric pump, which is a means for discharging the liquid in the container 42 to the outside of the body, and is driven by a motor 46 and sucks the liquid from the suction port 47 to form the pump 45 and the outlet 48 to the outside of the body. The liquid is led out to the outside of the body via a water pipe 49 that communicates with each other.

[0004]

In the conventional structure as described above, when tap water or the like is supplied into the container 2 to boil water, chlorine and the like in the tap water are removed and purified.
Although it is necessary to extend the boiling time, a few minutes of boiling time is required to perform purification to a sufficiently satisfactory level, and as a result, problems such as increased power consumption and steam filling the room are encountered. there were. Also, when new water is added to bring it to a boil, the temperature of the water accumulated in the water pipe 49 hardly rises, and chlorine and other substances remain almost unchanged. There was also a problem that remained.

This also applies to musty odors and harmful substances such as trihalomethane contained in water.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide an electric water heater capable of more efficiently removing unnecessary components in the contained liquid.

[0007]

In order to achieve this object, the electric water heater of the present invention divides the path in the middle of a series of paths connecting the lower part of the container and the outlet to the outside of the vessel. A valve body is provided at the branching portion so that the lower part of the container communicates with the outlet, or the lower part of the container communicates with the upper part. Any one of the states can be selected, and a case containing a water purification agent is arranged in the middle of the circulation path from the lower part of the container to the upper part or near the outlet of the circulation path to the upper part of the container, and external operation is performed. The operation of the operation unit for controlling the operation of the liquid derivation means is changed to a rotational operation, the behavior is converted into a linear operation, and the linear operation is transmitted to the valve body to operate the valve body.

[0008] Further, the operation of the operating portion is a rotational operation, a cam-shaped portion is formed on at least one of the members constituting the operating portion, and this behavior is transmitted to the valve body to operate the valve body. It is a thing.

Further, the behavior of the member constituting the operating portion is transmitted to the valve body through at least one lever, and the valve body is operated.

Further, the behavior of the member constituting the operating portion is transmitted by transmission including rotational contact at at least one location, thereby operating the valve body.

[0011]

With this structure, the outlet route of the liquid in the container is branched to form a circulation route, and the valve unit is provided at the branched portion to operate the outlet unit, thereby using the outlet unit as the circulation unit. be able to.

By disposing a case containing a water purification agent in the middle of the circulation path or in the vicinity of the outlet, the liquid can be circulated and purified during processes such as heating and heat retention. However, there is no need to significantly extend the boiling time.

Further, since the valve element is operated in conjunction with the operation of the derivation operation section, it is possible to set the route to the circulation side except during the derivation operation, that is, when the valve element is in operation. Even in the unlikely event that the valve body does not operate, there is no danger of it being led out of the body during circulation.

[0014]

【Example】

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a main body, 2 is a container having an upper surface opening arranged in the main body 1, 3 is a lid for covering the opening of the container 2, and 4 is heat generation for heating the liquid in the container. It is the body.

Reference numeral 5 denotes an electric pump which is a means for drawing out the liquid in the container 2 to the outside of the container and is driven by a motor 6.

Reference numeral 7 is a switch for controlling the operation of the motor 6, which is interlocked with a knob 8 for external operation.
The operation part is composed of the knobs 8 and the like.

The suction port 9 of the pump 5 communicates with the lower portion of the container 2, and the discharge port 10 thereof is formed by a valve body 11 composed of several parts described later and a first water channel 12. It is in communication.

From the valve body 11, the water channel is the second water channel 13
To the third water channel 14, the second water channel 13 is the outlet 15 to the outside of the vessel, and the third water channel 14 is the container 2
Are connected to the top of each.

Reference numeral 16 denotes a case containing a water purification agent 17 such as activated carbon, which is arranged at the outlet of the third water passage 14 to the container 2.

The operation of the valve body 11 is interlocked with the operation of the knob 8, and when the knob 8 is not operated, that is, the container 2
When the liquid inside is not drawn out of the container, as shown in FIG. 1, the first water channel 12 and the third water channel 14 are in communication. That is, the lower portion and the upper portion of the container 2 are in communication with each other and form a circulation path.

In this state, when the pump 5 is operated, the liquid in the container 2 is sent to the first water passage 12 by the pump 5 and is returned to the container 2 through the valve body 11 and the third water passage 14. .. At this time, the liquid is a water purification agent 17 such as activated carbon.
After passing through the inside of the case 16 that encloses, the unnecessary components such as chlorine are removed.

FIG. 2 shows a state in which the knob 8 is being operated, that is, a state in which the liquid in the container 2 is discharged to the outside of the container. The valve body 11 interlocking with the knob 8 operates, The first water channel 12 and the second water channel 13 communicate with each other. That is, the lower part of the container 2 and the outlet 15 to the outside of the container communicate with each other.

FIGS. 3 to 6 show a schematic structure around the operating portion including the valve body 11 and the knob 8, and FIGS.
The figures show the state when the knob 8 is not operated, and FIGS. 5 and 6 show the state when the knob 8 is operated.

In FIGS. 3 and 4, reference numeral 18 denotes a valve case for accommodating the shaft 19 and the packing 20 attached thereto, and the valve body 11 is constituted by these.

Three openings are formed in the valve case 18, and the first opening 21, the second opening 22, and the third opening 23 are respectively the first water channel 12 and the second opening 12. Waterway 13,
It is connected to the third waterway 14.

Reference numeral 24 is a first lever, one of which is connected to the upper portion of the shaft 19 and the other of which is rotatably attached to the bearing portion 26 of the support base.

Reference numeral 25 is a second lever, which is arranged so as to be movable in a substantially horizontal direction, and the first roller 2 is provided at both ends thereof.
7 and a second roller 28 are rotatably mounted.

Reference numeral 29 denotes a rotary plate which constitutes an operating portion together with the switch 7 and the knob 8 and rotates in conjunction with the rotary operation of the knob 8. On the outer peripheral portion of the rotary plate 29, a portion where the distance from the center of rotation gradually changes, that is, a cam portion 30 is formed.

Reference numeral 31 denotes a spring for urging the first lever 24 upward in this figure. When the knob 8 is not operated, the force acting on the valve body 11 is only the urging force of the spring 31. Due to this bias, the first lever 24 pulls the shaft 19 and the packing 20 attached thereto upward. As a result, the second opening 22 is closed and the first opening 21 and the third opening 23 are communicated with each other. That is, the lower part of the container 2 and the upper part are in communication with each other,
Form a circulation path.

In FIGS. 3 and 4, when the knob 8 is rotated in order to draw out the liquid in the container 2, the cam portion 30 of the rotary plate 29, which was not in contact with the first roller 27 at first, is rotated. Gradually contact each other, and the first roller 27
And the second lever 25 is moved. Accordingly, the second roller 28, which is attached to the second lever 25, is brought into rotational contact with the inclined surface 32 of the first lever 24 and resists the biasing force of the spring 31 to cause the first lever 24 to move. Is rotated, and the shaft 19 and the packing 20 attached thereto are pushed downward.

As a result, the third opening 23 is closed and the first opening 21 and the second opening 23 are communicated with each other. That is, the lower portion of the container 2 and the outlet port 15 to the outside of the container are put in communication with each other to form an outlet path.

With the above-described structure, the outlet path of the liquid in the container 2 is branched to form a circulation path, and the valve body 11 is provided at the branched portion to operate the outlet means to circulate the outlet means. It can be used as a means.

By disposing the case 16 containing the water purification agent 17 in the middle of the circulation path or in the vicinity of the outlet, the liquid can be circulated and purified during processes such as heating and heat retention. There is no need to significantly extend the boiling time.

Since the liquid accumulated in the water channel is also circulated, it can be purified in the same manner as the liquid in the container 2.

Further, since the valve element 11 is operated in conjunction with the operation of the derivation operation section, the route is set to the circulation side except when the derivation operation is performed, that is, when the valve element 11 is in operation. Even if the valve body 11 does not operate, there is no danger of being led out of the body during circulation.

The above-described embodiment comprehensively incorporates the first to fourth inventions. In addition to the above, the unique configuration of the first invention is to operate the operation portion including the knob 8. This is a rotation operation, and this behavior is finally converted into a linear motion and transmitted to the valve body 11, so that the configuration of the valve body 11 can be simplified and the reliability becomes high.

According to the unique construction of the second invention, the cam portion 30 is formed on the rotary plate 29 interlocking with the knob 8 and this behavior is transmitted to the valve body 11. The shape of the cam portion 30 is devised. As a result, the operation feeling of the operation unit including the knob 8 can be improved.

The unique configuration of the third aspect of the invention transmits the behavior of the member forming the operating portion including the knob 8 to the valve body 11 via at least one or more levers and operates the operating portion. In addition, the degree of freedom in arranging the valve body 11 in the main body 1 is increased, and space saving can be realized.

According to the unique constitution of the fourth invention, the roller is rotatably attached to the lever and the behavior of the operating portion is transmitted to the valve body 11 by the rotational contact, so that the frictional resistance can be reduced and the reliability and the operation can be improved. The feeling can be raised.

[0041]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, the circulation path is formed by branching the outlet path of the liquid in the container outside the container.
By providing a valve element at the branch portion and operating the valve element, the derivation means can be used as a circulation means.

By disposing a case containing the water purification agent in the circulation path or near the outlet,
Since liquid can be circulated and purified during processes such as heating and heat retention, it is not necessary to greatly extend the boiling time as in the conventional case.

Further, since the liquid accumulated in the water channel is also circulated, it can be purified like the liquid in the container.

Further, since the valve element is operated in conjunction with the operation of the operation part for the derivation, the valve body should be set to the circulation side except when the derivation operation is performed, that is, when the valve element is in operation. Even if a situation occurs that does not work, there are many effects that there is no danger of being led out of the vessel during circulation, more effective removal of unnecessary components in the contained liquid, and reliability It is possible to provide a high electric water heater.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing a circulating state of a contained liquid in an embodiment of an electric water heater of the present invention.

FIG. 2 is a vertical cross-sectional view showing how a stored liquid is discharged in an embodiment of the electric water heater of the present invention.

FIG. 3 is an enlarged sectional view of an essential part showing a circulating state in an embodiment of the electric water heater of the present invention.

FIG. 4 is an enlarged plan view of the relevant part.

FIG. 5 is an enlarged sectional view of an essential part showing a lead-out state in an embodiment of the electric water heater of the present invention.

FIG. 6 is an enlarged plan view of the relevant part.

FIG. 7 is a vertical sectional view showing an example of a conventional electric water heater.

[Explanation of symbols]

 2 container 8 knob 11 valve body 12 first water channel 13 second water channel 14 third water channel 16 case 17 water purification agent 18 valve case 19 shaft 20 packing 21 first opening 22 second opening 23 third Opening 24 first lever 25 second lever 27 first roller 28 second roller 29 rotating plate 30 cam portion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kaoru Maekawa 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (4)

[Claims] 1. A container for containing a liquid, a means for heating the liquid in the container, a means for leading the liquid to the outside of the body, and an operation section for controlling the operation of the leading means by an external operation. In the middle of a series of paths for connecting the lower part of the container and the outlet to the outside of the container, the path is branched to communicate with the upper part of the container, and a valve element is provided at the branching part. By the operation of the valve element, it is possible to select either the communication state between the lower part of the container and the outlet, or the communication state between the lower part and the upper part of the container, on the way of the circulation path from the lower part of the container to the upper part, Alternatively, in the vicinity of the outlet of the circulation path to the upper part of the container, a case containing a water purification agent is disposed, and the operation of the operation section is set to a rotational operation, and this behavior is converted into a linear operation, and the valve element is provided. The valve body is operated by transmitting Electric water heater that. 2. A container for containing a liquid, a means for heating the liquid in the container, a means for leading the liquid to the outside of the body, and an operation section for controlling the operation of the leading means by an external operation. In the middle of a series of paths for connecting the lower part of the container and the outlet to the outside of the container, the path is branched to communicate with the upper part of the container, and a valve element is provided at the branching part. By the operation of the valve element, it is possible to select either the communication state between the lower part of the container and the outlet, or the communication state between the lower part and the upper part of the container, on the way of the circulation path from the lower part of the container to the upper part, Alternatively, a case containing a water purification agent is disposed near the outlet of the circulation path to the upper part of the container, and the operation of the operation section is performed as a rotary operation, and at least one of the members constituting the operation section is cammed. Form the shape part By transmitting the behavior to the valve body, an electric kettle for operating the valve body. 3. A container for containing a liquid, a means for heating the liquid in the container, a means for leading the liquid to the outside of the body, and an operation section for controlling the operation of the leading means by an external operation. In the middle of a series of paths for connecting the lower part of the container and the outlet to the outside of the container, the path is branched to communicate with the upper part of the container, and a valve element is provided at the branching part. By the operation of the valve element, it is possible to select either the communication state between the lower part of the container and the outlet, or the communication state between the lower part and the upper part of the container, on the way of the circulation path from the lower part of the container to the upper part, Alternatively, a case containing a water purification agent is disposed in the vicinity of the outlet of the circulation path to the upper part of the container, and the behavior of the members constituting the operation unit is controlled by at least one or more levers. This valve is transmitted to the body Electric water heater to operate. 4. A container for containing a liquid, a means for heating the liquid in the container, a means for discharging the liquid to the outside of the body, and an operation section for controlling the operation of the discharging means by an external operation. In the middle of a series of paths for connecting the lower part of the container and the outlet to the outside of the container, the path is branched to communicate with the upper part of the container, and a valve element is provided at the branching part. By the operation of the valve element, it is possible to select either the communication state between the lower part of the container and the outlet, or the communication state between the lower part and the upper part of the container, on the way of the circulation path from the lower part of the container to the upper part, Alternatively, a case containing a water purification agent is arranged near the outlet of the circulation path to the upper part of the container, and the behavior of the member constituting the operation portion is transmitted by transmission including at least one rotational contact. , Move this valve Electric kettle to.