JP3052851B2 - 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 an electric hot water storage container in which a liquid content is heated by a heater to store hot water.
For example, it is used as a household electric pot.

[0002]

2. Description of the Related Art Such electric hot water storage containers are widely used as electric pots in general homes and workplaces. Electric pots are now used while connected to a household power source all the time except when refilling or replacing the contents, and can be used by discharging the contents during warming at any time.
When a boiling content solution is desired, the content solution being kept warm can be boiled in a short time by a re-boiling operation.

[0003]

By the way, there are occasions when it is desired to carry an electric kettle to a place where a home AC power supply is not provided, such as in a home or a work place. In this case, since the content liquid cannot be heated by the heater in a place where there is no AC power supply, the content liquid is being cooled down at the same time, and is cooled down early in winter or in a cold region, so that it cannot be used in a short time.

[0004] It is an object of the present invention to provide an electric hot water storage container which can be used while keeping the content liquid warm without using an AC power supply in a secondary battery.

[0005]

In order to achieve the above-mentioned object, an electric hot water storage container according to the first aspect of the present invention includes a container for storing a hot water by heating a content liquid with a heater or a heat retaining heater. It has a discharge pump that discharges the liquid inside the container to the outside of the container through a passage, and a secondary battery that is charged by an AC power supply, and when the AC power supply is connected, supplies power to the water heater or the heat retention heater to store hot water, When AC power is not connected, power is supplied from the secondary battery to the warming heater so that power consumption is lower than in the case of using the AC power, the hot water is stored, and power is supplied from the secondary battery to the discharge pump.
And a power supply circuit for performing the ejection is provided .

In such a configuration, when an AC power supply is connected, the power supply circuit supplies power from the AC power supply to the hot water heater or the heat retaining heater to heat and store the content liquid in the container by the water heater or the heat retaining heater. While heating and keeping warm, the power supply circuit when there is no AC power supply connected,
Power is supplied from the secondary battery charged by the AC power supply to the heater so that the power consumption is lower than in the case of the AC power supply, so that the temperature is kept warm. By extending the time required for the liquid to reach a low temperature that is unsuitable for discharge, the service life without an AC power supply can be extended, and if the voltage guarantee value of the secondary battery rises, sufficient insulation can be maintained. Can be achieved.
In addition, the power is supplied from the secondary battery to the electric pump.
Because there is an electric pot for electric discharge, place where there is no AC power supply.
However, it can be used conveniently by taking advantage of the electric discharge function.
Wear.

According to a second aspect of the present invention, there is provided an electric hot water storage container, comprising: a container for heating a content liquid by a heater or a heat retaining heater to store the hot water; a discharge pump for discharging the content liquid in the container to the outside of the container through an outlet path; A secondary battery that is charged by an AC power supply; and a power heater is supplied from the AC power source to the water heater to boil the liquid content, and a warming heater is provided using the AC power source as a power source. When the AC heater is connected, power is supplied from the AC power supply to the heater that is powered by the AC power supply, and when the AC power supply is not connected, the heater is powered by the secondary battery. A power supply circuit for supplying power from a battery is provided.

[0008] In such a configuration, in order to heat and store hot water contained in the container with a hot water heater or a heat retaining heater, when an AC power supply is connected, the power supply circuit switches the hot water heater or the AC power supply from the AC power supply to the power supply. When the AC heater is not connected, the power supply circuit supplies power from the secondary battery that is charged by the AC power to the heater that uses the secondary battery as a power source to maintain the temperature. Even if the heating is not sufficient as in the first aspect of the present invention, the temperature drop rate of the content liquid is greatly slowed down, and the time required for the content liquid to reach a low temperature at which the liquid is incompatible with ejection is extended to use without an AC power supply. In order to extend the service life, the resistance value of the heat retaining heater using the secondary battery as a power source is set in accordance with the type of the secondary battery and any power source voltage obtained depending on the usage. Door can be. In addition, secondary batteries
Power to the electric pump from the
The electric dispenser can be used in places where there is no AC power supply
It can be used conveniently by taking advantage of the ability.

According to a third aspect of the present invention, there is provided an electric hot water storage container for heating a content liquid by a heater to store the hot water, a discharge pump for discharging the content liquid inside the content body out of the body via an outlet path, and an AC power supply. Having a secondary battery charged by an AC power supply, and providing a heat retention heater using a secondary battery as a power supply separately from the heat retention heater,
A power supply circuit is provided to supply power from an AC power supply to a warming heater powered by an AC power supply when an AC power supply is connected, and to supply power from a secondary battery to a warmed heater powered by a secondary battery when no AC power supply is connected. It is characterized by the following.

In such a configuration, the power supply circuit supplies power from the AC power supply to the heat retention heater using the AC power supply when the AC power supply is connected, in order to heat and store the content liquid in the container by the heat retention heater. When the AC power supply is not connected, the power supply circuit supplies power from a secondary battery charged by the AC power supply to a warming heater using the secondary battery as a power supply to perform heat retention. Even if the heating is not sufficient, the temperature drop rate of the content liquid is greatly slowed down, the time required for the content liquid to reach a low temperature that is incompatible with discharge is extended, and the service life without AC power supply is extended. However,
The resistance value of the heat retaining heater using the secondary battery as a power source can be set in accordance with the type of the secondary battery and any power source voltage obtained depending on how the secondary battery is used. In addition, secondary
Power is supplied from the pond to the electric pump.
Electric discharge is possible even in places where there is no AC power supply
It can be conveniently used with its functions.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of the electric hot water storage container of the present invention will be described below in detail with reference to the drawings.

(Embodiment 1) Embodiment 1 is shown in FIGS. 1 and 2
In the case of a household electric pot in which the content liquid is heated by the heater 3 to heat the water or keep warm as shown in FIG. Is shown. The container 6 is formed by housing an inner container 2 made of an aluminum plate or a stainless steel plate in an outer member 1 made of a synthetic resin, and connecting the outer member 1 and the inner container 2 with each other at both mouths. A bearing portion 32 is integrally formed on a projecting portion 8b which protrudes outward from a rear portion of a shoulder member 8 made of a synthetic resin, which is designated by reference numeral 6, so that the lid 31 of the body 6 can be opened and closed by a shaft 33 with the bearing portion 32. So pivotal. The lid 31 is urged in the opening direction by a spring (not shown).

The lid 31 has a locking member 36 provided at a free end thereof.
The closed state is maintained by engaging with a. When the lock release member 37 is pulled up so as to rotate the pivot 37a counterclockwise, the lock member 36 is retracted by a cam (not shown) against the spring 36a, and the engagement with the locking portion 8a is stopped. The lid 31 is released, and the lid 31 is immediately opened with the urging of the spring, with the lifting operation of the unlocking member 37. Therefore, even if the user releases his / her hand immediately after the lifting operation of the unlocking member 37, the locking member 36 holds the locking portion 8a. To prevent the lid 31 from being locked in the closed state.

The lid 31 is made of synthetic resin and is formed hollow by combining a surface plate 139 and a lower plate 39. An inner lid 34 made of a stainless steel plate is attached below the lower plate 39, and the lid 31 is in a closed state. This inner lid 34 closes the mouth of the inner container 2. Inner lid 3
4 is provided with a seal packing 35 sandwiched between the inner cover 3 and the inner cover 3.
Seal the space between 4 and the mouth of the inner container 2.

Between the lower plate 39 of the lid 31 and the inner lid 34,
A steam vent passage 239 communicating from the inside of the inner container 2 to the outside of the lid 31 is provided to prevent the internal pressure from being abnormally increased by the steam generated in the inner container 2. Steam vent passage 239
Has a plurality of vents 9a opening into the inner container 2,
A vent 239b to the outside is provided at one position near the rear, and one of the vents 239a is provided so as to be the lowest at the center of the other, and this lowest vent 23
A water stop valve 40 for overturning is provided in the portion 9a to prevent the content liquid from flowing out through the vapor vent passage 239 when the container 6 is turned over.

The electric pump 14 is located in the middle of the lead-out passage 7 and immediately below the discharge port 2a of the inner container 2 to which the lead-out passage 7 is connected.
Of the so-called pumping type. However, the present invention is not limited to this, and any type of electric pump can be used. For example, it is also possible to supply pressurized air into the inner container 2 by an electric pump to push out the content liquid to the outlet path 7 and discharge it from the discharge port 11.

The lead-out path 7 rises between the inner container 2 and the exterior body 1 and reaches a beak-shaped protruding portion 9 that protrudes in a beak shape to the front surface of the container body 6 provided on the shoulder member 8. The discharge port 11 is opened downward in the section 9, and the liquid discharged from the discharge port 11 flows downward to the outside through a liquid injection port 13 formed at the bottom of the beak-shaped protrusion 9, and is injected. It has become.

Since the rising portion of the outlet path 7 has the same water level as the water level in the inner container 2, a water amount detecting means 173 for electrically automatically detecting this water level by a photocoupler system is provided. The water amount detecting means 173 is provided with a light projecting device 173a and a light receiving device 173b on both sides of a rising portion 7a which is a transparent tube of the lead-out path 7, and the light from the light transmitting device 173a determines whether or not there is a liquid in the rising portion 7a. The refraction state when traversing the rising portion 7a differs depending on the difference, and the amount of water is determined from the electric signal when the light receiver 173b receives or does not receive light from the light transmitter 173a. ing.

However, in the photocoupler system, a float may be provided in the rising portion 7a, and a height position corresponding to the amount of water may be detected to determine the amount of water. In addition, a reed switch provided in multiple stages outside the rising portion 7a may or may not respond to the magnet provided in the float for detecting the height position of the float depending on the height position of the float. Can also determine the amount of water. Further, it is also possible to determine the amount of water by detecting the capacitance corresponding to the amount of water in the content liquid.

The amount of water detected by the water amount detecting means 173 is equal to the amount of the synthetic resin display panel 22 provided on the front surface of the container 6.
To be displayed. The display panel 22 has six Ls arranged vertically.
The amount of water determined by the ED lamps 22a to 22f is displayed in stages. However, the number of lamps and the display method can be selected for the transfer. Immediately above the water amount detecting means 173 using the rising portion 7a of the lead-out path 7, a valve chamber 16 accommodating the water stop valve 15 at the time of falling is provided.
When the container 6 rolls over, the content liquid is prevented from flowing out to the outside through the outlet path 7.

An operation panel 122 is provided on the upper surface of the beak-shaped protruding portion 9 for setting various modes, performing operations such as discharging of a liquid content, and displaying related thereto. Inside the operation panel 122, there are provided switches to be pressed from the operation panel 122, LED lamps for various displays, and an operation board 20 having necessary connection patterns. As shown in FIG. 5, the operation panel 122 has a hot water supply key 70 for discharging the content liquid, a hot water supply lock / unlock key 71 for preventing or releasing the discharge of the content liquid, and cooking of instant noodle cup noodles. Cup noodle timer key 72 for setting time, boiling / descaling key 73 for switching and setting between re-boil and descaling, and keeping temperature at 95 ° C.
Temperature setting key 7 for setting either the temperature or 75 ° C
4. A good night timer key 75 for setting the time until the start of using the content liquid after boiling, an LED lamp 71a for displaying a hot water supply lock state, an LED lamp 72a for displaying a cup noodle mode setting state, a boiling mode and descaling mode. LED lamps 73a and 73b for displaying the temperature and the LED lamp 7 for displaying whether the heat retention temperature is 95 ° C. or 75 ° C.
4a, 74b and an LED lamp 75a for indicating that the sleep timer is set.

In this connection, as shown in FIG. 6, a hot water supply key 70, a hot water supply lock / unlock key 71, a cup noodle timer key 72, a boiling / descaling removal key 73, and a heat retention temperature setting key 74 are provided on the operation board 20 as shown in FIG. A hot water supply switch 80, a hot water supply lock / unlock switch 81, a cup noodle timer switch 82, a boiling / descaling removal switch 83, and a heat retention temperature setting switch 84, which are turned on by opposing key operations, are mounted on the operation panel. 12
2 are also mounted with various LED lamps 71a to 75a.

A discharge switch 21 is provided, and the discharge key 2
By pressing the button 3, the discharge key 23 is turned on so that the electric pump 14 is driven.

A circuit box 1c is integrally formed downward at an opening 1b of a bottom 1a integrally formed at the lower end of the exterior body 1 made of synthetic resin, and a heater 3 is provided inside the circuit box 1c.
And a drive control electronic circuit board 5 of a control circuit 19 for controlling the drive of the electric pump 14 in accordance with a setting mode and various operations on the operation panel 122. Bottom 1
A bottom cover 18 made of a synthetic resin is attached to the opening 1b, and a rotary seat 24 is fitted to the bottom cover 18. A temperature sensor 4 is applied to the lower surface of the inner container 2 together with the heater 3.

As shown in FIG. 6, the control circuit 19 includes a power supply circuit 5 using a household AC power supply 51 and a secondary battery 55 in combination.
3, while the AC power supply 51 is connected, and when the power load is small, the secondary battery 55 is charged and the power is supplied from the AC power supply while the AC power supply 51 is not connected. 55 is supplied. In addition, while power is being supplied from the secondary battery 55, the power supply to the heater 3 is stopped to suppress power consumption, and when the temperature of the content liquid drops to a low temperature range where use is not endurable, the discharge of the content liquid is restricted. In this case, it is easy to cope with this, and the wasteful discharge of the content liquid is prevented.

The rechargeable battery 55 is removably mounted in a battery chamber 301 formed by using a protruding portion 8b provided with the bearing portion 32 of the shoulder member 8 as shown in FIGS. 1, 3, and 4. It is. The battery chamber 301 can be formed only by the protruding portion 8b.

The electric pump 14 is a DC electric pump,
Together with the microcomputer 56, a DC circuit is formed. As shown in FIG. 6, the power supply circuit 53 of the control circuit 19 has an AC circuit section for supplying the AC from the AC power supply 51 to the warming heater 3a, the boiling heater 3b, and the DC power supply circuit 57 in which the heater 3 is separately provided. are doing. The DC power supply circuit 57 converts the AC from the AC power supply 51 to a predetermined DC voltage via the transformer 54 and supplies power to the DC circuit unit.
While the AC power supply 51 is connected and the control circuit 19 is in a state of a small power load, the secondary battery 55 is charged through the charging circuit 58 while the power from the AC power supply 51 to the warming heater 3a and the boiling heater 3b is supplied. When the power load of power supply is large, the power supply is performed without charging the secondary battery 55.

Power is supplied from the DC power supply circuit 51 of the first embodiment to the pump circuit 59 through the booster circuit 60.
Although the necessary voltage is ensured, it is also possible to generate a required type of DC voltage by the DC power supply circuit 57 and supply it to the pump circuit 59 directly.

Whether or not the AC power supply 51 is connected is determined by a signal from a reset circuit 162 connected between the AC circuit section and the microcomputer 56, and whether the AC power supply 51 is connected or not is determined. The above control difference is automatically switched. The heating heater 3a is energized under control of the microcomputer 56 through the triac 61 so as to achieve the setting mode and the heating mode according to the program, and the boiling heater 3b is controlled by the microcomputer 5 through the relay 62.
Under the control of 6, the energization control is performed so as to achieve water heating in accordance with the setting mode and its program.

In the first embodiment, the boiling heater 3
By utilizing the low capacity of b and supplying power from the secondary battery 55 through the booster circuit 60, the DC power supply circuit 57
Thus, power can be supplied to the boiling heater 3b through a relay 62 controlled by a microcomputer 56. Specifically, from the relation of the equation W = V ² / R, for example, the heat retention heater 3a
w = 100V ² / 150Ω and a resistance value of about 150Ω in order to obtain a heat generation capacity of about 66W.
Is also 100W AC power, 1000W = 10
The resistance value is about 10Ω in order to obtain a heating capacity of about 0W ² / 10Ω and about 1000W. Therefore, the secondary battery 5
Even if the voltage from the power supply 5 is boosted by the booster circuit 60 or the like, the voltage is currently as low as about 10 V, which is a low voltage. The heat generation capacity is 10w = 10V ² / 10Ω, and the heat can be kept with low power consumption. However, at present, lithium-ion batteries are provided with a specification of a capacity of 25 mmAh and a terminal voltage of 3.6 V. If three of these are used in series, a power supply voltage of about 10 V can be obtained without boosting. .

When the temperature is maintained by supplying power from the secondary battery 55, even if the heating is not sufficient, the temperature decreasing rate of the content liquid is greatly delayed, and the time required for the content liquid to reach the low-temperature region where the ejection is incompatible is lengthened. Thus, the service life without the AC power supply 51 can be extended. If the voltage guarantee values of the secondary battery 55 and the booster circuit 60 increase, sufficient heat retention can be achieved.

When the hot water supply key 70 is operated, the control circuit 19 drives the electric pump 14 by operating the pump circuit 59 via the relay 63 by the microcomputer 56 to discharge the liquid content.

The microcomputer 56 includes, for various necessary controls, the operation board 20 of the operation panel 122, the projection of the water amount detecting means 173, the light receivers 173a, 173b, and the LE.
Equipped with D lamps 22a to 22f, and an LED lamp 22g that indicates the necessity of water absorption when the amount of incompatible water is discharged,
Or the water amount display board 173 as shown in FIG.
c, and each other. The microcomputer 56 also receives a signal from the temperature sensor 4 and
Based on this, boiling control, heat retention control, and the like are performed, and a buzzer 64 connected to the output side is activated at appropriate times to issue various warnings, and also notifies the progress and state of various operations by sound along with lamp display. It should be noted that a warning or display using pseudo sound can be performed instead of the buzzer.

Bearing 32 for supporting lid 31 on shaft 33
As shown in FIGS. 1, 3 and 4, has a bearing recess 32a which is opened forward so that the shaft 33 can be taken in and out and the lid 31 can be attached and detached. In the closed state of the lid 31 shown in FIG. 1, the lid 31 and the upper end opening of the container 6 and the inner container 2
The lid 31 cannot move in any of the front, rear, left, and right directions due to entry into the opening of the shaft 33, so that the shaft 33 is stably inserted into the back of the bearing recess 32a, and the lid 31 is firmly closed. You.

When the lid 31 is opened beyond the upper end opening of the container 6 as shown in FIG.
Move back and forth with movement in the bearing recess 32a,
The shaft 33 can be attached to and detached from the bearing recess 32a, and the cover 31 can be removed from the body at the moving position of the cover 31 where the shaft 33 comes off the bearing recess 32a. By removing the lid 31, it is possible to wash the container 6 in a state independent of the container 6 equipped with electric equipment, to supply the container 6 with a liquid content, to discharge the remaining amount of the content liquid, and to clean the inside of the container 6. It is convenient for cleaning.

However, when the container 6 is tilted with the lid 31 opened halfway or more to discharge the remaining amount of the liquid,
There are times when the lid 31 is accidentally dropped. In order to prevent this, in the present embodiment, a stopper 311 is provided in a protruding portion 8b provided with a bearing portion 32 as shown in FIGS. 311 is always at a position where the shaft 33 is locked so that the shaft 33 is located at the back of the bearing recess 32a, thereby preventing the lid 31 from accidentally falling off. Only when the lid 31 is removed, the operating portion 311a of the stopper 311 protruding from the window 32b on the back of the bearing portion 32 is pushed downward, and the stopper 311 is moved downward against the spring 312.
The bearing recess 32a is opened, and the lid 31 can be removed. When the cover 31 is mounted, when the shaft 33 is moved from the state outside the bearing recess 32a to the deep portion of the bearing recess 32a, the shaft 33 pushes the tip slope 311b of the stopper 311 and the stopper 311 is moved by the spring 312. The stopper 311 is disengaged from the shaft 33 when the shaft 33 reaches the deep portion of the bearing recess 32 a while being moved downward against the shaft 33. Stop. Thus, when attaching the lid 31, the operation of the stopper 311 is unnecessary.

However, such attachment and detachment of the lid 31 is complicated in that the lid 31 is moved while maintaining a predetermined posture and height position.
Attachment without any guide until it fits over 2a may not be easy for some people, such as children. Therefore, in the present embodiment, as shown in FIG. 1, FIG. 3, and FIG.
The mounting piece 31f on which the shaft 33 of the lid body 31 is mounted on both left and right sides is received so that the shaft 33 is located immediately before the bearing recess 32a, and is guided until the shaft 33 enters into the depth of the bearing recess 32a. A guide surface 32c is formed.

Furthermore, the initial guide position of the lid 31 on the guide surface 32c is curved so as to match the roundness of the lower end of the mounting piece 31f. As a result, as shown in FIG. 4, the cover 31 is first placed almost upright, the mounting piece 31f is brought into contact with the guide surface 32c, and then the cover 31 is tilted to a predetermined position so that the shaft 33 is inserted into the bearing recess 32a. Since it is possible to guide the change in the posture of the lid 31 when the shaft 33 is inserted into the inner part of the bearing recess 32a after the insertion position, the attachment of the lid 31 is facilitated. However, even when the lid 31 is removed, the guide surface 32c is completely opposite to the above.
The removal operation is also easy because it guides the user's movement.

As shown in FIGS. 3 and 4, the battery chamber 301 in which the secondary battery 55 is detachably mounted has a projecting portion 8a of the shoulder member 8 and a projecting portion 8a corresponding to the projecting portion 8a protruding from the outer surface of the exterior body 1. A secondary battery 55 is mounted on a synthetic resin battery case main body 321 sandwiched in the battery chamber 301 to form a power supply circuit in the housing 6. The secondary battery 55 is detachable by opening and closing the lid 322 of the battery case 321.

The battery case opening 321a facing the rear of the battery case main body 321 is located slightly inside the battery chamber opening 301a facing the rear of the battery chamber 301.
1a is located, and the lid 322 takes an opening 321a of the battery case main body 321 in a state fitted in the battery chamber opening 301a.

At the upper end of the battery case body 321, a guide wall 321 b projecting into the projecting portion 8 a to guide the vertical movement of the stopper 311 between the projecting portion 8 a,
Spring seat 32 for receiving the lower end of the spring 312 applied to the spring 11
1c is integrally formed. The upper end of the spring 312 is received by a spring seat 311c integrally formed on the surface of the stopper 311.

The substrate chamber 3 is provided on the inner wall of the battery case body 321.
21d is integrally formed, a male connector 324 for connecting the female connector 323a of the lead wire 323 from the secondary battery 55 side, a lead wire 325 for connecting to the power supply circuit 53 in the housing 6, and a wiring (not shown) A connection board 326 having a pattern is attached, and when a predetermined secondary battery 55 is mounted in a predetermined position in the battery case main body 321, this is automatically connected to the power supply circuit 53.

At the upper edge of the battery chamber opening 301a immediately behind the battery case opening 321a, there is formed a downwardly engaging wall 301b while maintaining a predetermined gap 327 with the opening 321a. Engagement piece 32 at upper end
When the lower end of the lid 322 is pressed against the battery case opening 321a in this state, the engagement hook 32 provided on the inner surface of the lower end of the lid 322 is inserted.
2b elastically engages with an engaging projection 321e provided substantially at the center of the inner surface of the bottom wall of the battery case main body 321 so that the lid 322 is engaged with the opening 321a while being pressed. At this time, since the seal packing 328 covering the opening 321a seals between the battery case opening 321a and the lid 322, it is possible to prevent water from entering the battery case main body 321. A convex wall 32 which engages with the inner surface of the upper edge of the battery case opening 31a is provided on the inner surface of the upper end of the lid 322.
2c is integrally formed to further stabilize the mounting state of the lid 322.

When the secondary battery 55 has reached the end of its service life and is replaced, the middle of the side edge of the lid 322 or the lower edge may be pryed with a knife-shaped object, so that the engagement protrusion of the engagement hook 322b is formed. 321e is disengaged and can be removed, so if the secondary battery 55 is replaced and then closed again, it can be reused. Although the lid 322 may be more easily detachable, the replacement frequency of the secondary battery is not so high, so that the present embodiment is effective in the sense of preventing careless removal.

In short, in the present embodiment, the AC power supply 5
1 is connected, the power supply circuit 53
Electricity is supplied from the AC power supply 51 while charging, the electric liquid such as the heater 3 and the electric pump is operated as usual to store the hot water, and the heat-maintaining hot water and the boiling hot liquid are discharged and used at any time. Power supply circuit 5 when the AC power supply 51 is not connected.
3 operates the necessary electric equipment by the power supply from the secondary battery 55 charged during the power supply from the AC power supply 51, so that the function corresponding to the type of the electric equipment to be operated can be performed even in a place without the AC power supply. It can be used by showing it. In addition, since the secondary battery 55 is mounted so as to be detachable by itself and is replaced when it reaches the end of its life, the use of the electric pot utilizing the secondary battery 55 can be prevented by reaching the end of the life of the secondary battery 55. Problems that can no longer be solved are resolved.

The secondary battery 55 is a battery formed by using a protruding portion 8a in which a part of the shoulder member 8 protrudes outward to provide a bearing portion 32 for pivotally supporting the lid 31 of the container 6. Room 3
01, which is located on the outer surface side of the container 6 and is not affected not only by the heat from the heater 3 at the bottom of the container 6 but also by the contents liquid, and the life is shortened due to the heat. Such a problem is solved, and a new protruding portion is not formed on the container body 6 due to the installation of the secondary battery 55, so that it does not obstruct or change the shape. Absent.

Further, the secondary battery 55 is charged by the charging control means as an internal function of the microcomputer 56 only when the power supply load is small when the power supply circuit 53 is supplied with power from the AC power supply 51. The power supply load becomes excessive due to the charging of the battery, and the function of the electric device functioning by the power supply from the AC power supply 51 becomes weaker.
It is possible to avoid problems such as malfunction or inoperability. Further, since the electric power is supplied to the electric pump 14 from the secondary battery 55, the electric pot for electric discharge can be conveniently used even in the place without the AC power supply 51 by utilizing the electric discharge function.

Also, since the temperature is maintained even when the power is supplied from the secondary battery 55, the temperature of the content liquid can be suppressed or the predetermined temperature can be maintained even when the electric pot is not provided with the AC power supply 51. Since the power is supplied from the power supply 55, it is possible to solve the problem that the content liquid is cooled early without being kept warm. In addition, since the power supply state is such that the consumption of the secondary battery is small, the life of the secondary battery is particularly short. It also eliminates such problems.

The electric pump 14 can be replaced by various discharge pumps such as a bellows pump that is manually operated. According to this, even when the AC power supply is not connected, the liquid content can be discharged and used at any time by manual operation. can do.

(Embodiment 2) In Embodiment 2, as shown in FIGS.
1 is detected by the power failure detection relay 331, and when the AC power supply 51 is connected, the AC power supply 51 shown in FIG. 7 supplies power to the warming heater 3a and the boiling heater 3b. 3 when there is no connection
The electric power is supplied from the secondary battery 55 of the lithium ion battery to the heater 3b. Electric power is supplied to the electric pump 14 through the DC power supply circuit 57 when the AC power supply 51 is connected, and from the secondary battery 55 when the AC power supply 51 is not connected.

Hereinafter, the heat keeping heater 3a and the boiling heater 3b
A detailed description will be given of the energization of. AC power supply 5 of FIG.
1 is connected, the power failure detection relay 331
Is on. As a result, the warming heater 3a and the boiling heater 3b are turned on and off by the half-wave energization through the commutator 332 and the half-wave energization through the commutator 333 indicated by the double arrow in FIG. The waves are energized. Then, the secondary battery 55 is charged by half-wave energization through the commutator 333. Therefore, the charging load is smaller than when the secondary battery 55 is charged with full waves.

When only the AC power supply 51 in FIG. 8 is not connected, only the heater connection is shown, but the power failure detection relay 331 is off. As a result, a circuit for supplying power from the secondary battery 55 to the boiling heater 3b is formed. Electricity is supplied under the ON control of the microcomputer 56, and the temperature is maintained using the boiling heater 3b. According to the second embodiment, the power supply state in which the AC power supply 51 is prioritized when the AC power supply 51 is connected, the heat retention by the secondary battery and the driving of the electric pump when the AC power supply 51 is not connected Is switched by the power failure detection relay 331 without relying on the function of the microcomputer 56, so that the control is simple and reliable.

(Embodiment 3) In Embodiment 3, as shown in FIGS. 9 and 10, one boiling heater 3b of Embodiment 2 has a resistance of 10Ω, whereas two heaters 3b have a resistance of 5Ω. In the power supply state from the AC power supply 51 shown in FIG. 9, the two boil heaters 3b are energized so that the same energization state as in FIG. 7 of the second embodiment is obtained. In the power supply state from the secondary battery 55, the power failure detection relay 331 is operated so that only one boiling heater 3b is energized. Thereby, the resistance value of the boiling heater 3b when supplying power from the secondary battery 55 is reduced by half compared to the first and second embodiments,
Even with the same power supply voltage of 9 V, it is possible to obtain a power consumption state of about 20 W and exhibit twice the heat generation capacity, and it is easy to make the heat retention temperature by the power supply from the secondary battery 55 sufficient.

(Embodiment 4) In Embodiment 4, as shown in FIGS. 11 and 12, a secondary battery 5 is provided in addition to a heat retaining heater 3a using an AC power supply 51 as a power supply.
5 is provided with a warming heater 3c that uses a secondary battery 55 that is dedicated to power supply from the power supply 5 as a power source. AC power supply 5 in FIG.
1 is connected, half-wave power is supplied to the secondary battery 55 while full-wave power is supplied to both the heat retaining heater 3a and the boiling heater 3b as in the case of the second and third embodiments.
In a state where the second AC power supply 51 is not connected, the power failure detection relay 331 is operated so that power is supplied from the secondary battery 55 only to the heat retention heater 3c dedicated to heat retention and heat retention is performed.

Accordingly, the resistance value of the heat retaining heater 3c when power is supplied from the secondary battery 55 can be set in accordance with the type of the secondary battery 55 and any power supply voltage obtained depending on how the secondary battery 55 is used. it can. Therefore, the degree of freedom in selecting the type and usage of the secondary battery 55 is improved. However, two or three boiling heaters as in the third embodiment are used.
When divided into two, one or more resistance values suitable for power supply from the secondary battery 55 may be set and used. However, since it is related to the set values of other divided heaters, at least 2 It is necessary to adjust the resistance values of the two heaters.

[0056]

According to the electric hot water storage container of the first aspect of the present invention, the power supply circuit is connected to the AC power supply when the AC power supply is connected to heat the hot water or the hot water by the heater or the heat retention heater. When the AC power supply is not connected, the power supply circuit consumes less power from the secondary battery charged by the AC power supply to the heater than when the AC power supply is used, while supplying power to the water heater or the warming heater from the power supply. Even if the heating is not enough, the temperature drop rate of the content liquid is greatly slowed down, the time until the content liquid reaches a low The service life can be extended, and if the voltage guarantee value of the secondary battery increases, sufficient heat retention can be achieved. In addition, an electric
Power is supplied to the
Utilizing the electric discharge function even in places where there is no AC power supply
Can be used conveniently.

According to the electric hot water storage container of the second aspect of the present invention,
When an AC power supply is connected, the power supply circuit supplies power from the AC power supply to the hot water heater or a warming heater that uses the AC power supply as a power supply to heat the content liquid in the container by using a hot water heater or a warming heater to store hot water. On the other hand, when the AC power supply is not connected, the power supply circuit supplies power to the heat retaining heater powered by the secondary battery from the secondary battery charged by the AC power supply to maintain the temperature while maintaining the heat. Even if the heating is not enough, the temperature drop rate of the content liquid will be greatly slowed down, the time required for the content liquid to reach a low temperature that is incompatible with discharge will be extended, and the service life without AC power supply will be prolonged. In addition, the resistance value of the heat retaining heater using the secondary battery as a power source can be set in accordance with the type of the secondary battery and any power source voltage obtained depending on how the secondary battery is used.
In addition, the power is supplied from the secondary battery to the electric pump.
Because there is an electric pot for electric discharge, place where there is no AC power supply.
However, it can be used conveniently by taking advantage of the electric discharge function.
Wear.

According to the third aspect of the present invention, there is provided an electric hot water storage container.
When the AC power supply is connected to heat and store the hot water inside the container with the heat retention heater, the power supply circuit supplies power from the AC power supply to the heat retention heater that uses the AC power supply as a power supply, while maintaining the temperature. When there is no connection, the power supply circuit supplies power from the secondary battery charged by the AC power supply to the thermal insulation heater using the secondary battery as a power source to maintain the temperature. Even if the heating is not sufficient as in the invention of claim 1, The secondary battery must be connected to a power source to significantly slow down the temperature of the content liquid, increase the time required for the content liquid to reach a low temperature that is incompatible with discharge, and extend the service life without an AC power supply. The resistance value of the heat retaining heater can be set in accordance with the type of the secondary battery and any power supply voltage obtained depending on the usage. In addition, electric power is supplied from the secondary battery to the electric pump.
The electric pot that discharges electric power is connected to an AC power supply.
Conveniently use the electric discharge function even where
Can be.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an electric pot according to Embodiment 1 of the present invention.

FIG. 2 is a front view of a part of the electric pot shown in FIG.

FIG. 3 is a sectional view of a secondary battery mounting portion of the electric pot of FIG. 1;

FIG. 4 is an exploded perspective view of the secondary battery mounting unit in FIG. 3;

FIG. 5 is a plan view of an operation panel of the electric pot of FIG. 1;

FIG. 6 is a block diagram of a control circuit of the electric pot of FIG. 1;

FIG. 7 is a block diagram illustrating a control circuit of the electric pot according to the second embodiment of the present invention in an AC power supply connection state.

8 is a partial block diagram showing the control circuit of FIG. 7 in an AC power supply disconnected state.

FIG. 9 is a block diagram showing a control circuit of the electric pot according to the third embodiment of the present invention in an AC power supply connection state.

10 is a partial block diagram showing the control circuit of FIG. 9 in an AC power supply disconnected state.

FIG. 11 is a block diagram showing a control circuit of an electric pot according to a fourth embodiment of the present invention in an AC power supply connection state.

12 is a partial block diagram showing the control circuit of FIG. 11 in a state where an AC power supply is not connected.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 3 Heater 3a, 3c Heating heater 3b Boiling heater 6 Container 7 Outlet 14 Electric pump 19 Control circuit 23 Hot water supply key 51 AC power supply 53 Power supply circuit 54 Transformer 55 Secondary battery 56 Microcomputer 57 DC power supply circuit 58 Charging circuit 59 Pump circuit 60 Boost circuit, 61 Triac 62, 63 Relay 331 Power failure detection relay 332, 333 Rectifier

Claims (3)

(57) [Claims] 1. A container body for heating a content liquid by a water heater or a warming heater to store hot water, a discharge pump for discharging the content liquid in the container body outside through a lead-out path, and a secondary battery charged by an AC power supply. When the AC power supply is connected, power is supplied to the water heater or heat retention heater to store hot water.When the AC power supply is not connected, the power consumption from the secondary battery to the heat retention heater is lower than when using the AC power supply. so as to the secondary cell with power supply to perform the hot water storage
An electric hot water storage container provided with a power supply circuit for performing the discharge by supplying power to a discharge pump . <O: p <//
o: p 2. A container body for heating and storing the content liquid by a heater or a warming heater, a discharge pump for discharging the content liquid inside the container outside through a lead-out path, and a secondary battery charged by an AC power supply. Having an insulated heater powered by an AC power supply to the hot water heater from an AC power supply to boil the content liquid, and provided with an insulated heater powered by the AC power supply, and provided with an insulated heater powered by a secondary battery separately from the insulated heater, the AC power source when there is a connection of the AC power supply to supply power from an AC power supply to the heat insulating heater to the power supply, the secondary battery while power from the secondary battery to the insulation heater powered by a rechargeable battery when there is no connection of the AC power source To the discharge pump
An electric hot water storage container provided with a power supply circuit for performing the discharge by electricity. 3. A container for heating a content liquid by a heater to store hot water, a discharge pump for discharging the content liquid in the container through a lead-out path to the outside of the container, and a secondary battery charged by an AC power supply. In addition to providing a warming heater that uses an AC power supply as a power supply, a warming heater that uses a secondary battery as a power supply is provided separately from this warming heater. From the secondary battery, and when no AC power supply is connected, power is supplied from the secondary battery to the warming heater powered by the secondary battery and from the secondary battery to the discharge pump.
An electric hot water storage container provided with a power supply circuit for performing the discharge .