JPH0895B2 - Purification type electric hot water storage container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circulation purifying type electric hot water storage container, and more particularly to a purifying section for heating a content liquid with a heater to boil water and keep it warm and to purify the content liquid. The present invention relates to a purifying electric hot water storage container.

[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.

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

Therefore, it is considered that the boiling state is appropriately continued for a predetermined period of time or repeated to enhance the effect of removing chlorine, but this is not sufficient.

In order to deal with this, a purifying type electric hot water storage container is conceivable in which the content liquid is brought into contact with an adsorbing member such as activated carbon or ceramics to purify it, and it is disclosed in JP-A-4-99532 and JP-A-4-75612. Japanese Patent Laid-Open No. 4-31
Japanese Patent No. 7612 and Japanese Patent Application Laid-Open No. 4-361712 disclose
Such is disclosed.

[0008] By the way, since the diffused chyle is difficult to escape to the outside of the body, there is a tendency that it will stop inside the body and adhere around the body, and the attached chyle will be returned to the content liquid again. If not done, descaling is still insufficient.

[0009] In the invention disclosed in (1), a purifying unit is provided at the mouth of the container, and when the internal solution is introduced into the container, the solution is purified therethrough so that hot water can be stored in the container.
Further, in the one disclosed in (1), a purifying section is placed in the flow path when the internal solution is forcedly circulated, and the internal solution is circulated so that the internal solution is purified.

When the inner solution does not pass through and the inner solution is in good contact with the air in the vessel, the purifying section disclosed therein adsorbs and removes the chlorine content and odor particles in the air diverging from the inner solution. You can also do it.

[0011]

However, the materials described in (1) to (3) do not have a structure for actively contacting the air. The purifying section disclosed in ,, has only one surface exposed to the inside of the container through the lid, and even if the purifying section disclosed in is in the space of the container, only the bottom surface of the case is covered. Since they are only exposed and communicate as a downflow port into the body, in both cases, contact with air is insufficient and purification of the air inside the vessel is not so much hoped for.

In addition, since the purifying unit disclosed in (1) can purify the inner solution only when the inner solution is charged into the container, the purifying of the inner solution tends to be insufficient. Also, the one disclosed in (1) circulates the inner solution to forcibly purify the purifying section, so that the inner solution can be sufficiently purified, but since the forced circulation structure is required, the structure becomes complicated and the body is It becomes large and expensive.

An object of the present invention is to solve the above-mentioned problems, and the structure is simple and inexpensive without increasing the size of the body.
It is an object of the present invention to provide a purification-type electric hot water storage container that can achieve a well-balanced and sufficient purification of the internal solution and the air in the vessel.

[0014]

In order to achieve the above object, the inventions of claims 1 and 2 heat the content liquid by a heater to boil it and keep it warm, and purify the content liquid. A purification type electric hot water storage container having a purification part, in which a purification part made of an adsorptive purification material made of activated carbon, ceramics, etc. is immersed in a solution in the storage in the body and in contact with the content liquid And a gas phase purification state in contact with air or steam above the solution in the storage in the container, and in particular, the invention of claim 1 is a shape that expands and contracts in response to the temperature of the content liquid. The purifying section is suspended in the body by the memory alloy, and the purifying section is moved downward due to the deformation of the shape memory alloy when the temperature of the content liquid is below the predetermined temperature to enter the liquid phase purification state. Due to the deformation of the shape memory alloy, It is characterized in that as a gas-phase purifying state.

According to the second aspect of the present invention, the purifying section is suspended in the stored content liquid, the lower half side is in a liquid phase purification state of being immersed in the content liquid, and the upper half side is exposed to the upper space in the body. It is characterized in that it is brought into a gas phase purification state.

[0016]

A purifying electric hot water storage container having the above-mentioned common structure of the inventions of claims 1 and 2, which has a purifying part for heating the content liquid by a heater to boil and keep it warm and to purify the content liquid. In, in the liquid phase purification state in which the purification part made of the adsorptive purification material is immersed in the solution in the storage in the vessel and comes into contact with the content liquid, positive contact immersed in the inner solution and heating of the inner solution It is possible to purify the inner solution by making even contact with a large amount of the inner solution using the convection by the flow and the flow of pouring out of the body, and the purifying unit is located above the stored solution in the body. If it is in a gas phase purification state where it contacts air and steam, it is often exposed to the air and steam in the upper space of the body,
The chlorine and odor particles emitted from the content liquid accompanying the air and steam can be captured by adsorption and removed from the air and steam inside the vessel. Since the liquid phase purification state and the gas phase purification state can be obtained at any time during hot water storage or at the same time, a sufficient balance between the purification of the inner solution by the liquid phase purification state and the purification of the air inside the vessel by the gas phase purification state can be achieved. It can be achieved, and in the gas phase purification state, the purification unit can be released from the immersion state in the internal solution that is in the liquid phase purification state, so that the purification unit remains immersed in the internal solution for a long time. As a result, it is possible to prevent deterioration at an early stage and shortening of the life. Moreover, the above-described liquid phase purification state and vapor phase purification state of the purification unit can be achieved by a simple movement of the purification unit, and the structure is simple, the vessel does not become large, and it is inexpensive. be able to.

Particularly, in the characteristic configuration of the invention of claim 1,
Deformation of the shape memory alloy when the content liquid temperature is equal to or higher than the predetermined temperature due to deformation of the shape memory alloy when the content liquid temperature is equal to or lower than the predetermined temperature With the configuration in which the purifying section is moved upward to be in the gas phase purification state by the above, switching between the liquid phase purification state and the gas phase purification state can be achieved by a simple means, and by setting the predetermined temperature, Both of the purification states can be achieved at proper timing and balance.

Further, in the characteristic configuration of the invention of claim 2,
The purification section suspended in the stored content liquid is configured so that the lower half side is in the liquid phase purification state where it is immersed in the content liquid, and the upper half side is in the gas phase purification state where it is exposed to the upper space inside the vessel. Since both purification states can be obtained without special means for moving the water purification section, it is possible to further simplify the structure, reduce the size of the body and reduce the cost, and continue both purification states. Obtained.

[0019]

EXAMPLE A first example of the present invention shown in FIGS. 1 and 2 will be described. The present embodiment shows the case of an electric pot capable of boiling water and pouring the content liquid by a manually operated bellows pump. As shown in FIG. 1, an inner container 2 in which a heater 1 is applied to the bottom side peripheral surface is housed in an outer case 3 to form a body 4. Inner container 2 is outer case 3
The upper end flange is received by a shoulder member 5 made of synthetic resin which is forcibly fitted to the upper end of the.

A bottom ring 6 made of synthetic resin is applied to the lower end of the outer case 3, and the bottom ring 6 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 6 are integrated with each other. A circuit box 8 is integrally formed on the bottom ring 6, and a bottom lid 9 is fixed to the center opening of the bottom ring 6 from below, and a rotary seat 11 is rotatably held on the outer periphery of the bottom lid 9. are doing. As a result, when the body 4 is stationary, the body 4 slides and rotates on the rotary seat 11.

A pouring path 12 for pouring out the content liquid is connected to the bottom of the inner container 2. The pouring path 12 is a space between the inner container 2 and the outer case 3, and rises up to the inside of the beak-shaped protrusion 13 provided at the front portion of the shoulder member 5, and bends in an inverted U shape at this portion. The discharge port 14 opens downward.

A liquid injection guide 17 is attached to a lower cover 16 which is attached to the lower side of the beak-like protrusion 13 and which is attached to the front part of the outer case 3.
, And the content liquid discharged from the discharge port 14 is once opened to the atmosphere and then received by the liquid injection guide 17 to be guided and injected.

A temperature sensor 21 is applied to the center of the bottom of the inner container 2 by utilizing the central hole of the heater 1 to give temperature information of the content liquid to a control circuit 22 housed in the circuit box 8.

Thus, the control circuit 22 controls the energization of the heater 1 so as to keep the content liquid at a predetermined temperature.

A body lid 31 is provided on the upper end of the body 4. The body lid 31 has a hinge pin 33 on a bearing portion 32 provided at a rear portion thereof so as to partially open inside the shoulder member 5.
It is pivotally attached so that it can be opened and closed and removed. The body lid 31 can be attached and detached by opening the body lid 31 so that the hinge pin 33 integrated with the body lid 31 can be inserted and removed from the opening of the bearing portion 32. Therefore, it is possible to prevent the body lid 31 from being unintentionally detached when the body lid 31 is in the closed state.

A lock member 34 is provided at the front end portion of the body lid 31, and when the body lid 31 is closed, the lock member 34 is elastically engaged with a not-shown locking portion provided on a part of the shoulder member 5 so that the body lid 31 is locked. The body lid 31 is locked in the closed state. The lock member 34 is pushed in the backward direction by the lock releasing member 30 against the spring exerted thereon, so that the lock member 34 is disengaged from the lock portion and the lock of the device body lid 31 is released.

A bellows pump 101, which pressurizes the content liquid through the pouring path 12 and discharges it to the discharge outlet pouring 14, is provided inside the vessel lid 31, and is exposed at the center of the upper portion of the vessel lid 31. The pressing plate 102 is operated for pressing. Reference numeral 103 is an air supply passage for supplying pressurized air from the bellows pump 101 into the inner container 2.

An inner lid 36 made of a metal plate is attached to the inside of the back plate 35 of the container lid 31, and is attached by screws 37. A seal packing 38 is provided on the outer periphery of the inner lid 36.
Is attached, and this comes into contact with the rear portion of the inner container 2 and
I'm trying to close.

A steam passage 39 is provided between the inner lid 36 and the back plate 35 of the vessel lid 31 to let the steam generated in the inner container 2 escape to the outside. The abnormal pressure rise is avoided.

In the middle of the steam passage 39, a water stop valve 41 at the time of falling is provided to prevent the liquid content from flowing out through the steam passage 39 at the time of falling.

The air supply passage 103 and the steam passage 39 are branched at a branch hole 104, and a valve 105 interlocked with the pressing and returning operation of the pressing plate 102 is a branch hole 104 and a discharge port of the bellows pump 101. By selectively closing 106 and 106, pressurization of the content liquid to pour out the content liquid,
The discharge of steam through the steam passage 39 when the content liquid is not poured out is achieved.

At the rear of the shoulder member 5 of the body 4, a steam sensor 43 which faces the steam passage 39 and detects the temperature of the steam.
Is provided for supplying the temperature of the steam discharged through the steam passage 39 to the control circuit 22.

As a result, the control circuit 22 determines whether or not the content liquid has boiled depending on the steam temperature, and controls the continuation and stop of the boiling operation of the content liquid.

An operation panel 44 for setting various modes of the electric pot is provided on the upper surface of the beak-shaped protrusion 13 of the shoulder member 5, and an operation board 45 provided inside the operation panel 44.
The above various switches are pushed, and various indicators such as LEDs provided on the operation board 45 are used to indicate whether to turn on or off.

Immediately below the inverted U-shaped bent portion of the pouring path 12, a water stop valve 61 for falling is provided.

Protrusions 111 projecting from several places on the inner surface are provided a little above the full water display portion 2b of the mouth 2a of the inner container 2, and the purifying unit 112 is fitted onto these protrusions 111 from above.

The purifying unit section 112 includes the projection section 11
1. A metal disk-shaped support plate 113 which is placed on 1 from above and is stably held, and a purifying unit case 114 which is fitted into a central opening of the support plate 113 so as to be detachable from above and which receives a flange 114a. And a purification material 64 made of activated carbon or ceramic in the purification part case 114.
The purification unit 64 holding a is accommodated.

The purifying material 64a is housed in a case 64b, and the purifying portion 64 formed by these is supported on the bottom of the purifying portion case 114 via a spring-shaped alloy 117.
The purifying unit case 114 is located below the full water level except for the upper end and is immersed in the content liquid.

The shape memory alloy 117 is in the contracted state shown by the solid line in FIG. 2 until, for example, the content liquid stored in the container 4 reaches 70 ° C., and the supporting purification unit 64 is immersed in the content liquid. , The liquid phase contacting state with the content liquid is maintained, and when the content liquid exceeds 70 ° C., it expands as shown by the phantom line in FIG. Is located in the upper space of the inner container 2 and is in a gas phase purification state where it contacts the air and steam in the upper space in the inner container 2.

As described above, when the purifying unit 64 is in a liquid phase purifying state in which it is immersed in the solution in the storage in the container 4 and comes into contact with the content liquid, positive contact immersed in the inner solution and internal It is possible to purify the inner solution by making even contact with a large amount of the inner solution by utilizing the convection caused by heating the solution and the flow caused by pouring out of the body 4, and When in a gas phase purification state where it contacts the air and steam above the solution in the storage in 4, the content liquid that is often exposed to the air and steam in the upper space of the container 4 and accompanies this air and steam Chalk components and odor particles emitted from the inside can be captured by adsorption and removed from the air and vapor inside the container 4. The liquid phase purification state and the gas phase purification state of the purification unit 64 are as follows.
It can be achieved by a simple movement of the purification unit 64,
The structure is simple, the body does not become large, and it can be made inexpensive. Moreover, during the gas phase purification state, the purifying unit 64 is released from the immersion state in the internal solution that is in the liquid phase purification state,
It is possible to prevent the purification unit 64 from being soaked in the solution for a long time and being deteriorated at an early stage to shorten the life.

In particular, in this embodiment, the purifying section 64 is forcibly purifying the content liquid efficiently while being immersed in the content liquid only when the content liquid is at 70 ° C. or lower, and thus while the purifying material works efficiently. Since the content liquid exceeds 70 ° C and the function of the purifying unit 64 becomes weaker, the content liquid is withdrawn from the content liquid, and the content liquid is heated and boiled, so that the content liquid diverges into the upper space of the inner container 2. It is possible to perform vapor-phase purification that adsorbs and removes chlorine components and odor particles that are present, and switching between a liquid-phase purification state and a vapor-phase purification state is as simple as suspending the purification unit 64 by the shape memory means. It can be achieved by means.

According to the basic idea of the present invention, the liquid phase purification state and the gas phase purification state can be obtained at any time during hot water storage or at the same time. It is possible to achieve a well-balanced and sufficient purification of the air inside the vessel.

In the case of this embodiment, the purification section 64
By changing the temperature setting for switching between both purification states, it is possible to change the switching timing of both purification states and adjust the balance state of both.

The purifying unit 64 is replaced by the purifying unit case 114.
Can be easily achieved by attaching and detaching the support plate 113 to and from the support plate 113. In the case of supplying the liquid into the inner container 2, draining it conversely, or cleaning the inner container 2, the support plate 113
By attaching / detaching to / from the mouth portion 2a of the inner container 2, the entire purifying unit 112 can be attached / detached without difficulty.

The second embodiment of the present invention shown in FIGS. 3 and 4 utilizes a simple purifying unit 112.

As shown in the figure, the purifying unit 112 of this embodiment has a projection 111 provided at the mouth 2a of the inner container 2.
A support grid 121 is placed on the above, and the purification unit 64 is directly suspended by the linear shape memory alloy 122.

In the present embodiment, when the content liquid is 70 ° C. or lower, the shape memory alloy 122 is in the expanded state and the purification unit 6
3 is soaked in the content liquid as shown by the solid line in FIG. 3, and when the temperature exceeds 70 ° C., the shape memory alloy 122 contracts and the purifying section 64 is pulled up from the content liquid.

The expansion and contraction condition of this shape memory alloy 122 is the first
Although it is the opposite of the embodiment described above, there is no difference in obtaining a gas-liquid two-phase purified state.

The support grid 121 only needs to be able to suspend the purifying unit 64, and since it has rough eyes, it does not particularly disturb the supply of the content liquid, and it does not have to be removed one by one.

In the third embodiment of the present invention shown in FIG. 5, the disc-shaped purifying section 64 having a size substantially closing the entire area of the mouth 2a is directly mounted on the protrusion 111 of the mouth 2a of the inner container 2. is there.

As a result, when the content liquid is supplied into the inner container 2, it passes through the purifying unit 64 and is accommodated in the inner container 2, thereby forcibly performing liquid phase purification, and the other components are contained in the inner container 2. Two
It is located in the upper space inside and is in a gas phase purification state.

In the liquid phase purification state, the content liquid to be supplied is at room temperature, or even if the content liquid exceeds 70 ° C., it is hardly supplied and the function of the purification unit 64 is vigorous. It is performed under various conditions, and there is an advantage that the configuration is extremely simple.

In the fourth embodiment of the present invention shown in FIG. 6, the float type purifying section 164 is suspended above the content liquid.

Therefore, the purifying section 164 appropriately selects the purifying material 64a to be used and the case 64b for accommodating the purifying material 64a, and as shown in the figure, the lower half is immersed in the content liquid and the upper half is exposed. To be However, if this cannot be satisfied depending on the material, a hollow portion may be provided in a part of the case 64b or the like, or a hollow member may be housed in the case 64 to obtain the necessary buoyancy.

However, most advantageously, the purifying material 64a having a porous structure and having sufficient buoyancy can be adopted.

In the purifying section 64 thus provided, the lower half side is in a liquid phase purifying state where it is immersed in the content liquid, and the upper half side is in a gas phase purifying state where it is exposed to the upper space in the body. It is not necessary to switch between the two purification states, and the two-phase gas-liquid purification state can be continuously obtained with the simplest configuration, and the floating purification unit 64 changes its direction depending on the convection of the content liquid or the flow due to the pouring. Therefore, it is possible to prevent the portion immersed in the inner solution from moment to moment and the same portion continue to be kept immersed in the inner solution and deteriorate early.

The purifying unit 64 is housed in the guide case 131 so as to follow the liquid level at a predetermined location in the inner container 2. The guide case 131 is detachably locked at a predetermined position by hooking a hook 132 provided on one side to a stopper 133 fixedly provided on the inner surface of the inner container 2.

In the fifth embodiment of the present invention shown in FIG. 7, a collar 6 is provided on the upper end of the case 64b of the float type purifying section 164.
4c is provided, and the notches 64d provided at two locations on the diameter line of the collar 64c are fitted to the vertical guide ridges 134 formed by bending at the two locations on the diameter line of the guide case 131 to guide the vertical movement. , So that it can smoothly follow changes in liquid level.

[0059]

According to the first and second aspects of the present invention, in common, when the purifying section is in a liquid phase purifying state in which it is immersed in the solution in the reservoir and comes into contact with the content solution, It is possible to purify the inner solution by making an even contact with the large amount of the inner solution using the convection by the immersion of the inner solution and the convection by the heating of the inner solution or the flow by the pouring out of the vessel. When the purification unit is in a gas phase purification state where it contacts the air or steam above the stored solution in the body, it is often exposed to the air or steam in the upper space of the body and is accompanied by this air or steam. The chlorine content and odor particles emitted from the liquid contained can be captured by adsorption and removed from the air and vapor inside the vessel. And the liquid phase purification state and the gas phase purification state are
Alternatively, since it can be obtained at the same time, purification of the inner solution in the liquid phase purification state and purification of the air inside the vessel in the gas phase purification state can be sufficiently achieved in a well-balanced manner. Since it can be released from the state of being immersed in the inner solution to be in the purified state, it is possible to prevent the purification part from being deteriorated early and shortening the life by being left immersed in the inner solution for a long time. . Moreover, the above-mentioned liquid phase purification state and gas phase purification state of the purification unit are
This can be achieved by a simple movement of the purification unit, and the structure is simple, the vessel does not become large, and the cost can be reduced.

In particular, according to the invention of claim 1, when the temperature of the content liquid is below a predetermined temperature, the shape memory alloy is deformed to lower the purifying section suspended from the shape memory alloy into the liquid phase purification state. According to the configuration in which the purifying portion is moved upward to be in the gas phase cleaning state by the deformation of the shape memory alloy when the temperature is equal to or higher than the predetermined temperature, the switching between the liquid phase cleaning state and the gas phase cleaning state can be performed. This can be achieved by simple means, and the both purification states can be achieved at proper timing and balance by setting the predetermined temperature.

According to the second aspect of the invention, the purifying section suspended in the stored content liquid is in a liquid phase purification state in which the lower half side is immersed in the content liquid, and the upper half side is the upper space in the body. According to the structure in which the gas phase purification state exposed to the above is achieved, both of the purification states can be obtained without any special means for moving the water purification unit, so that the structure is further simplified and the body is downsized. Moreover, the cost can be reduced, and both purification states can be continuously obtained.

[Brief description of drawings]

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

FIG. 2 is a cross-sectional view showing an upper space portion in the electric pot of FIG.

FIG. 3 is a vertical sectional view of an electric pot showing a second embodiment of the present invention.

FIG. 4 is a cross-sectional view showing an upper space portion in the electric pot of FIG.

FIG. 5 is a sectional view showing an upper space portion in an electric pot showing a third embodiment of the present invention.

FIG. 6 is a cross-sectional view showing the vicinity of a mouth of an inner container according to a fourth embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a relationship between a purifying section and a guide case showing a fifth embodiment of the present invention.

[Explanation of symbols]

 2 Inner container 2a Mouth 4 Container 12 Outlet passage 31 Container lid 39 Vapor passage 64 Purification portion 64a Purification material 111 Protrusion 112 Purification portion unit 117, 122 Shape memory alloy

Claims (2)

[Claims] 1. A purifying type electric hot water storage container having a purifying section for purifying the content liquid by heating the content liquid with a heater to boil and keep it warm, and having an adsorptive property made of activated carbon, ceramics or the like. The purifying unit made of a purifying material has a liquid phase purification state in which it is immersed in a solution in the reservoir in the body and is in contact with the content liquid, and a gas phase purification state in which it is in contact with air or steam above the solution in the reservoir in the vessel. Provided inside,
Purification part with shape memory alloy that expands and contracts in response to the liquid temperature
When the temperature of the liquid content is below the specified temperature,
Deformation of the shape memory alloy moves the purification unit downwards to purify the liquid phase.
When the content liquid temperature is above the specified temperature, the shape description
Due to deformation of the alloy
Purifying type electric hot water storage vessel, characterized in manner things become. 2. A boiling water is heated by heating the content liquid with a heater.
In addition, it has a purifying unit that keeps the temperature warm and purifies the content liquid.
It is a purification type electric hot water storage container that is made of an adsorptive purification material such as activated carbon or ceramic.
The liquefied part is soaked in the solution in the storage in the body and contacted with this content liquid.
Liquid phase purification condition and the air above the solution in the storage inside the vessel
It is installed so that it has a gas phase purification state where it contacts steam or steam, and the purification section is suspended in the stored content liquid, the lower half side is in the liquid phase purification state immersed in the content liquid, and the upper half side is the upper part inside the body. The special feature is that the gas phase is exposed to the space and is in a purified state.
A purifying electric hot water storage container.