JPH07265206A - Circulating purification type electric hot water storage container - Google Patents

Abstract

PURPOSE:To thoroughly remove foreign matter by circulatively and repeatedly passing an internal liquid through a purification section with a simple structure by utilizing an extraction path and an electric pump for extracting the internal liquid without hindering their extracting functions. CONSTITUTION:This electric hot water storage container is provided with an extraction path 11 guiding an internal liquid in a main body 1 to a delivery port 19 located at a pipe cover 12 section formed protrusively forward at the front upper section of an outer body 3 forming the exterior of the main body 1, an electric pump 13 provided in the middle of the extraction path 11 and extracting the internal liquid to the outside through the extraction path 11, a circulation path 301 returning the internal liquid sent from the extraction path 11 into the main body 1 through a purification section 306, and a selector valve 302 selectively guiding the internal liquid to the delivery port 19 side or the circulation path 301 side. The selector valve 302 is arranged in the pipe cover 12 at the outside position of the outer diameter size of the outer body 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulating purified water type electric hot water storage container, and more particularly to a circulating purified water type electric hot water storage container capable of purifying and storing hot water while circulating a content liquid.

[0002]

2. Description of the Related Art Conventionally, electric hot water storage containers have been widely provided as household electric pots.

[0003] This product keeps the content liquid in a heat-retaining state, or keeps it in a heat-retaining state after boiling water and stores hot water, so that the content liquid at a temperature necessary for extracting coffee or tea can be supplied at any time.

The content liquid is heated for the purpose of boiling or keeping it warm, and in particular, when heated for boiling water, the content liquid is brought into a boiling state to cause an offensive odor, or calcination or its compound, trihalomethane. Foreign matter is released.

[0005]

However, the foreign matter is not sufficiently dispersed only by the heat retention or the heating for boiling water.

Therefore, it has been considered to enhance the effect of removing chlorine by continuing the boiling state for a predetermined period of time or repeating the boiling state appropriately.

However, even if this is the case, the diffused scaly component is difficult to escape to the outside of the body, adheres around the body inside the body, etc., and there is a dislike that the adhered scaly is returned to the content liquid again. Is still insufficient.

In view of this, the present invention focuses on the pouring path and the electric pump that are installed in this type of electric hot water storage container, and circulates the internal solution as needed with a simple structure that utilizes these without any hindrance to the pouring function. It is an object of the present invention to provide a circulating purified water type electric hot water storage container capable of sufficiently removing foreign substances such as offensive odors and scaly substances by repeatedly passing through the water purifying unit while being allowed to do so.

[0009]

In order to achieve the above-mentioned object, the present invention guides the content liquid in the body and projects forward to the front upper part of the body forming the exterior of the body. It is sent from the pouring path that leads to the discharge port located in the pipe cover formed in this way, the electric pump that is provided in the middle of this pouring path and pours the internal solution to the outside through the pouring path, and the pouring path A circulation path for returning the inner solution into the container through the water purification unit, and a switching valve for switching and guiding the inner solution between the discharge port side and the circulation path side, the switching valve being located outside the outer diameter of the outer casing to be the pipe. It is characterized by being arranged in the cover.

[0010]

In the above-mentioned structure of the present invention, when the electric pump is operated, the solution inside the body is about to be sent out through the pouring path. At this time, by switching the switching valve to the circulation path side, the inner solution sent out can be guided to the circulation path and returned to the inside of the vessel after passing through the water purification section, and the electric pump is activated to switch the switching valve. While switching to the circuit side,
It is possible to repeatedly pass through the water purification section while continuously circulating the internal solution in the container to purify the entire amount of the internal solution in the container, and by switching the switching valve to the outlet side, The delivered internal solution can be led to the side of the discharge port and poured out of the body to use the internal solution.

In particular, the switching valve is located in the existing pipe cover formed so as to project forward in a beak-like shape on the upper front surface of the body, and is located outside the outer diameter of the outer casing. Since it is arranged in the above, the structure of the pipe cover protruding forward is effectively used, and it is not necessary to provide a special installation space.Therefore, by providing a switching valve, the outer diameter of the exterior body is not increased and the conventional It will be realized in the size and shape of the body.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

This embodiment shows the case of an electric pot capable of boiling water and pouring the content liquid by a non-pressurized type electric pump. As shown in FIG. 1, the inner container 2 in which the heater 61 is applied to the lower surface of the bottom is housed in the outer case 3 to form the body 1.

The inner container 2 receives an upper end flange by a shoulder member 4 made of synthetic resin, which is forcibly fitted to the upper end of an outer case 3 as an outer body forming the outer casing of the container 1 according to the present invention.

A bottom ring 5 made of synthetic resin is applied to the lower end of the outer case 3, and the bottom ring 5 and the bottom of the inner container 2 are connected by a connecting fitting (not shown) to form the outer case 3 and the inner container 2. And the bottom ring 5 are integrated with each other. A bottom ring 10 is attached to the opening of the bottom ring 5 by fitting a plurality of claws and fixing it with a screw at one place, and the bottom ring 10 has a plurality of claws 8 provided on the outer periphery of the lower surface thereof for rotation. The seat body 9 is rotatably fitted, and when the body body 1 is placed, the body body 3 slides and rotates on the rotary seat body 9.

A pouring path 11 for pouring out the content liquid is connected to the bottom of the inner container 2. This pouring path 11 guides the content liquid in the inner container 2 and guides it to a discharge port 19 located at a pipe cover 12 formed so as to project forward in the upper part of the front surface of the body 1. , Rises in a space between the inner container 2 and the outer case 3 from a connection part to the bottom of the inner container 2, reaches the inside of the pipe cover 12, bends in an inverted U shape, and opens the discharge port 19 downward. ing. The pipe cover 12 is a hollow portion in which the shoulder member 4 of the body 1 forms an upper surface wall, and the lower cover 15 which is attached to the body 1 from below and attached to the body 1 forms a lower surface wall. An electric pump 13 for delivering the content liquid flowing into the pouring path 11 to the discharge port 19 is provided in a portion of the pouring path 11 below the inner container 2, and is driven by a motor 14.

A liquid injection guide 16 is provided on the lower cover 15 of the pipe cover 12, and the content liquid discharged from the discharge port 19 is once exposed to the atmosphere and then received by the liquid injection guide 16 to guide it. So that it can be injected.
The injection guide 16 has a double pipe structure, and the above-mentioned discharge content liquid is easily released to the atmosphere, and the outside air is sucked at the time of injection to make the injection liquid into fine bubbles together with the blasting net 20 to be extremely quiet. Moreover, it is possible to inject liquid without bounce.

The liquid injection guide 16 is detachably attached by a threaded portion 18 to an opening provided in the lower cover 15. Further, the rising portion of the pouring path 11 is provided with a liquid amount detection unit 21 for detecting the amount of liquid by utilizing the same liquid level as the inner container 2 by a capacitance method or a photo sensor method.

A heat shield plate 24 is screwed under the bottom of the inner container 2 by using a metal fitting 23, and a restraining spring 28 is sandwiched between the heat shield plate 24 and the back side of the heater 61, whereby a heater is provided. 61 is pressed against the bottom surface of the bottom of the inner container 2. The electric motor 14 is attached to a part of the heat shield plate 24.

A temperature sensor 33 for detecting the temperature of the content liquid is provided in the through hole at the center of the heater 61, and a holding plate 35 screwed to the heat shield plate 24 holds the temperature sensor 33 via the heat shield wall. is doing.

The bottom ring 5 is provided with a circuit accommodation box 41. The circuit housing box 41 includes a lid portion 42 integrally formed with the bottom ring 4, and a container portion 44 attached to the lid portion 42 from below. A seal packing 47 is sandwiched at a joint between the container portion 44 and the lid portion 42 to form the circuit housing box 42 as a hermetic container. This makes the circuit board 48 housed in the circuit housing box 41 waterproof enough.

A body lid 62 is provided on the upper end of the body 1. The body lid 62 has a hinge pin 6 attached to the shoulder member 4 at the rear portion thereof.
It is pivotally attached by means of 3. This pivoting is performed on a bearing member 64 that is detachably fitted to the shoulder member 4, and the body lid 62 can be attached and detached by attaching and detaching the bearing member 64. This makes it easy to clean the inside of the container 1 and to supply and discharge the content liquid.

The bearing member 64 is inserted into the concave portion 65 of the shoulder member 4 from above, and the resin spring piece 164 elastically engages with the locking portion 66 in the concave portion 65 to prevent accidental disengagement. In order to surely lock the bearing member 64 in the mounted state and to release it, the hook member elastically engages with a part of the bearing member 64 inserted into the recess 65.
The lock member 67 is slid in the lock releasing direction against the spring 221 to release the lock.

The body lid 62 and the bearing member 64 are connected to each other by the spring 6
8 is urged in the opening direction, and the closed state is the vessel lid 62.
The lock member 69 provided at the front end portion of is locked by being engaged with the locking portion 72 provided at a part of the shoulder member 4 by the bias of the spring 71.

The lock member 69 is guided forward and backward by a projection 83 formed on the upper surface of the back plate 82 of the body lid 62.

On the slope 75 of the lock member 72, the body lid 6
A protrusion 78 at the tip of a lock release lever 77 pivotally attached at the rear by a shaft 76 is in contact with the bearing 201 in the second bearing. The lock release lever 77 is the lock member 69.
When the spring 71 is advanced to the engagement position, it is pushed upward by the slope 75 through the protrusion 78, and the operation portion 79 at the tip end is moved from the upper surface opening 81 of the body lid 62 to the body lid. It is exposed so as to be flush with the surface of 62.

When the operating portion 79 is pushed down in this state, the lock release lever 77 is rotated counterclockwise and the protrusion 78 is moved.
The sloping surface 75 of the lock member 69 is pushed by the lock member 69 against the spring 68, and the lock member 69 is retracted to disengage from the locking portion 72. Therefore, the lock of the body lid 62 in the closed state is released. At the time when this unlocking is completed, there is a play in the unlocking direction between the unlocking lever 77 and the body lid 62, and whether the unlocking lever 77 is released from the pressing operation of the body lid 62. It is slightly rotated in the opening direction by the spring 68 regardless of whether it is performed or not.

As a result, the lock member 69 is slightly displaced upward from the position of the locking portion 72, so that the lock member 69 is again moved to the locking portion 72 by the natural operation of releasing the lock and releasing the hand from the operating portion 79. The body lid 62 is automatically opened to the fully opened state by the spring 68 without any engagement.

The unlocking lever 77 has a safety member 111.
Is working. The safety member 111 is supported by the body lid 62 so as to be slidable in the longitudinal direction of the lock release lever 77. Then, when the slide portion is operated by the operation portion 112, the locking portion 113 is advanced and retracted below the tip portion of the lock release lever 77, and the lock release lever 77 is prevented from moving while entering below the tip portion. Prevents easy unlocking.

A spring piece 84, which is pressed against the outer peripheral portion of the bearing member 64, is attached to the rear portion of the container lid 62 by a screw 85. This spring piece 84 is in sliding contact with the outer periphery of the bearing member 64 when the container lid 62 is opened and closed, so that the container lid 62 is closed by the spring 6.
8 exerts braking on the opening operation when opened. Therefore, the automatic opening operation of the container lid 62 at the time of releasing the lock is performed slowly.

On the lower surface of the back plate 82 of the vessel lid 62, the inner container 2
An inner lid 85 made of metal for closing the rear part is applied, and is screwed at a position not shown. A seal packing 86 facing the rim of the inner container 2 is sandwiched between the outer periphery of the inner lid 85 and the back plate 82, and when the container lid 62 is closed, the inner lid 85 is the seal packing 86 portion. The inner container 2 is closed by coming into contact with the rim of the inner container 2.

A steam passage 87 is provided between the inner lid 85 and the back plate 82 for allowing steam generated in the inner container 2 to escape to the outside. The steam passage 87 has an opening 88 to the inner container 2 side in the inner lid 85, and an opening 89 to the outside on the upper surface of the rear side of the vessel lid 62. A valve chamber 91 fitted to the back plate 82 from below is provided in the opening 88, and a water stop valve 92 at the time of tipping is provided in the valve chamber 91 which is closed when the body 1 falls.

Control circuit 1 mounted on the circuit board 48
00 is the one using the microcomputer 101. The pouring operation key 102 provided on the operation panel 210 provided on the upper surface of the beak-shaped protrusion 12 is provided so as to press the pressure sensor 103, and the pressure sensor 103 measures the difference in pressing force during the pouring operation. By converting the signal into an electric signal and inputting it to the microcomputer 101 (FIG. 3), the drive voltage of the electric pump 13 is switched to increase / decrease the pouring flow rate.

Further, a circulation path 301 for returning the internal solution branched and sent from a part of the discharge path 11 on the discharge side of the electric pump 13 to the inside of the vessel 1 through the water purification section 306, and a circulation path 301 provided at the branch section. A switching valve 302 for switching and guiding the incoming internal solution to the discharge port 19 side and the circulation path side 301 is provided. The switching valve 302 is provided at the upper end of the inverted U-shaped bent portion of the spout passage 11 in the pipe cover 12.
The position of the circulation path 301 from the switching valve 302 is set higher than the lower surface of the vessel lid 62 so that this does not enter the circulation path 301 side from the switching valve 302 even when the lower surface of the vessel lid 62 is full of water. ing. The circulation path 301 is a body-side circulation path 301a that opens from the inside of the body 1 to the inner circumferential surface of the shoulder portion.
And a lid side circulation path 301b provided in the vessel lid 62
It consists of and.

When the container cover 62 is closed, the lid side circulation path 301b is connected so that the mouth packing 303 and the one end 304 of the opening of the container side circulation path 301a face each other under pressure contact with each other so that they can be connected to and disconnected from each other. The other end 305 projects from the lower surface of the inner lid 85 and faces the inner container 2.

When the electric pump 13 operates, the switching valve 302
Is switched to the circulation path 301 side, the inner solution sent out by the electric pump can be guided to the circulation path 301, returned to the inner container 2 after passing through the water purification unit 306, and the electric pump 13 is activated. , The switching valve 302 to the circulation path 3
While switching to the 01 side, the inner solution in the inner container 2 can be repeatedly passed through the water purifying unit 306 while continuously circulating, so that the entire amount of the inner solution in the inner container 2 can be purified. By switching the valve 302 to the discharge port 19 side, the delivered internal solution can be guided to the discharge port 19 side and poured out of the container 1, and the internal solution can be used.

In particular, the switching valve 302 is located in the existing pipe cover 12 formed so as to project forward in a beak-like shape in the upper part of the front surface of the body 1, and the pipe is located outside the outer diameter of the exterior body. Since it is arranged in the cover 12, the structure of the pipe cover protruding forward is effectively used and it is not necessary to provide a special installation space. Therefore, by providing the switching valve 302, the outer diameter dimension of the outer case 3 which is the outer body. Can be realized with the body 1 having the conventional size and shape without increasing the size.

The water purification section 306 is positioned higher than the lower surface of the vessel lid 62. As a result, the inside of the inner container 2 can be effectively used and there is an advantage that it does not interfere with cleaning or the like.

Moreover, the water purification unit 306 is a case 307 which is forcibly fitted into the opening 310 of the inner lid 85 as shown in FIG.
And a water-purifying agent cartridge 309 that is detachably attached to the screw portion 308, and is located inside the vessel lid 62. The water purifying agent cartridge 309 contains a water purifying agent although it can remove odors and foreign substances such as activated carbon 311.

The switching valve 302 can be connected to an operating lever or the like located outside the body 1 so as to be manually operated from the outside. It is convenient to automatically switch so that the liquid is guided to the discharge port 19 side and the other so that the content liquid flows to the circulation path 301 side.

In this case, the electric pump 13 has a switching valve 302.
Is circulated to the side of the circulation path 301, and is circulated at an appropriate time during non-pouring, for example, while boiling the content liquid or while continuing boiling for removing scaly, or at a certain time during heat retention or at a predetermined time. Water purification can be performed by.

When the content liquid is at the lower limit water level, the water purification operation by circulating the content liquid as described above is unnecessary. Therefore, when such a water level is detected by the liquid amount detecting section 21, It is preferable to control so that the circulating water purification treatment of the content liquid is not performed.

In summary, the pouring path 11 and the circulation path 301 are poured into the outside of the body 1 through the pouring path 11 under the cooperation of the electric pump 13 by switching the switching valve 302 at the branch point between these. It is possible to achieve a simple passage structure to discharge the content liquid through the part of the pouring path 11 and the circulation path 301 and then to return the content liquid to the inside of the body body 1 again and circulate it. The section has a water purifying unit 306 to clean the water so that the circulated content liquid passes through the water purifying agent 311. Therefore, the content liquid is circulated as necessary to repeatedly and forcibly for a necessary time. After water purification, the content liquid after sufficiently purified in this way can be poured out at a suitable time and used.

Further, since the water purification section 306 is provided at a position higher than the lower surface of the vessel lid 62, it does not narrow the space inside the inner container 2 or interfere with the cleaning inside the inner container 2, and it is as usual. There are advantages that can be used for.

In particular, since the water purifying section 306 is provided in the inner space of the vessel lid 62, the dead space of the vessel lid 62 can be utilized to achieve efficient water purification without increasing the overall size. The lid side circulation path 301b that guides the content liquid sent to the circulation path 301 to the water purification section 306 in the body lid 62 and returns it to the body is an obstacle to the opening and closing of the body lid 62 with respect to the body side circulation path 301a. No connection can be made with the connection units 304 and 305.

Since the circulation path 301 side of the pouring path 11 from the branch point of the circulation path 301 is provided at a position higher than the lower surface of the container lid 62 provided on the container 1, the container lid 62 is provided.
Even if the content liquid is filled into the body 1 until it reaches the lower surface of the container 1, it does not enter the part of the switching valve 302 at the branch point, but it enters by entering the switching valve 302. It is possible to prevent the content liquid from cooling.

Further, the content liquid is the switching valve 302 of the spout passage 11.
The liquid is returned to the same level as the internal liquid level by stopping the injection, but this level does not rise above the position of the switching valve 302, and the liquid content above the switching valve 302 It also eliminates the inconvenience of being outside the circulation system when the switching valve 302 is switched to the circulation path 301 side.

The operation panel 201 is as shown in FIG. 4, and in addition to the pouring operation key 102, the re-boiling / scalping removal setting key 104, the timer setting key 104, the liquid amount display portion 107, the boiling / scaling removal, Insulation display units 108-1
10. Display units 111 to 113 for setting the timer time are provided. Furthermore, when the content liquid is in the boiling state or before and after it, or when the liquid level of the content liquid is below the lower limit of the pouring, pouring when controlling so as to prevent the pouring or circulating water purification treatment. The standby display unit 106 for circulating water purification treatment is also connected to receive the above-mentioned control.

The reboil / descaling removal key 104 and the pouring lock / release key 106 are designed so that the setting mode changes to a rotary type each time they are operated.

FIG. 3 shows a control circuit. In the microcomputer 101, as shown in the figure, the electric and electronic parts related to the various inputs and outputs are A / D converters 301c and 302a, a switch circuit 303a, a drive circuit 304a, and a display circuit. Thirty
It is properly connected via 5a.

Even if the circulation path 301 is provided so that the body lid 62 can be opened and closed, it is not restricted by the structure of the above embodiment.

For example, the circulation path 3 is provided around the pivot portion of the body lid 62.
01 may pass and the portion around this pivotal portion may be made to be a flexible portion or a telescopic portion so that it can respond to the opening / closing operation of the vessel lid 62.

If the body lid 62 is detachable as in this embodiment, a part of the circulation path 301 can be connected / disconnected with the attachment / detachment.

[0054]

EFFECTS OF THE INVENTION According to the present invention, the inner solution in the vessel is repeatedly supplied to the water purifying section as needed while allowing the inner solution to be poured by the electric pump and the pouring path for pouring the inner solution at any time. The required amount of purified water can be achieved through a simple passage structure with a small number of additional parts that share the spout passage and the electric pump. It is located inside the existing pipe cover that is formed on the outside and is located inside the pipe cover at a position outside the outer diameter of the exterior body.Therefore, the configuration of the pipe cover protruding forward is effectively used to create a special installation space. Since it is not necessary to provide it, by providing the switching valve, it is possible to realize the conventional body and size without increasing the outer diameter of the outer body.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an electric pot showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a water purification unit of the electric pot of FIG.

FIG. 3 is a block diagram of a control circuit for the electric pot of FIG.

4 is a plan view of an operation panel of the electric pot of FIG. 1. FIG.

[Explanation of symbols]

 1 Body 3 Exterior Case 12 Pipe Cover 13 Electric Pump 19 Discharge Port 301 Circulation Path 302 Changeover Valve 306 Water Purification Section

Claims (1)

[Claims] 1. A spouting path for guiding the content liquid in the body and leading to a discharge port located in a pipe cover part formed so as to project forward at the upper part of the front surface of the outer body forming the exterior of the body, An electric pump provided in the middle of this pouring path for pouring the internal solution to the outside through the pouring path, a circulation path for returning the internal solution sent from the pouring path to the inside of the body through the water purification section, and a discharging port for the internal solution Side and a circulation path side, and a switching valve for switching and guiding the switching valve, and the switching valve is arranged inside the pipe cover at a position outside the outer diameter of the exterior body.