JPH07121248B2 - 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. More specifically, the content liquid is heated by a heater to initially boil the content liquid when the power is turned on or when the content liquid temperature is below a predetermined temperature. Mode, heat retention mode to keep the content liquid after boiling at a predetermined temperature, reboil mode to boil the content liquid in the heat retention mode again to the heat retention mode, and continue boiling for a predetermined time to perform descaling. The present invention relates to an electric hot water storage container that executes a descaling mode.

[0002]

2. Description of the Related Art An electric hot water storage container is often used to fill water, heat it, make tea or coffee, or melt baby's milk.

The content liquid is boiled once and then kept warm. However, most of the content liquid is tap water, and even if it is boiled once, a smell may remain. Also, it is difficult to remove chlorine compounds such as trihalomethane, which are said to be harmful.

In order to deal with this, the scaly removal mode in which the content liquid is once boiled and then continued to be boiled for a predetermined time, thereby more actively releasing odors and harmful substances, is selected by the user. It is supposed to be done when.

[0005]

By the way, the liquid content is boiled once and kept at a safe temperature slightly lower than the boiling temperature. For this reason, when used, the content liquid is boiled again before use.

The user who selects the descaling mode may want to choose the descaling mode in any case where the content liquid is boiled.

However, in order to execute the descaling mode by a microcomputer or the like based on the selection of the descaling mode, various mode selections can use a signal of an instantaneous input operation by an operation button of an automatic reset type. Has been done. In this case, there is an advantage that it is not necessary to perform the returning operation in the present age when many operations are performed due to the multi-functionalization. On the other hand, the user is inconvenient to use because the user only selects the mode each time the mode in which the content liquid is boiled is selected. In particular, it is more inconvenient to remove the descaling by boiling when selecting the re-boiling mode, because it is necessary to select two modes.

Therefore, an object of the present invention is to provide an electric hot water storage container capable of eliminating such inconvenience.

[0009]

In order to achieve the above-mentioned object, the present invention heats the content liquid with a heater so that the content liquid is temporarily supplied when the power is turned on or when the content liquid temperature is below a predetermined temperature. Initial boiling mode to boil, heat retention mode to keep the content liquid after boiling at a predetermined temperature, reboil mode to boil the content liquid in the heat retention mode again to heat retention mode, and continue boiling for a predetermined time In the electric hot water storage container that executes the descaling mode for descaling, the reboiling selection means for selecting the reboiling mode, the descaling selection means for selecting the descaling mode, and the descaling mode for the initial boiling mode are selected. When the re-boiling mode is selected, the storage means for storing this and when the re-boiling mode selection is stored, the re-boiling mode is followed by the descaling removal. And a calking removal control means that shifts to the warming mode after executing the mode, and when the selection of the calking removal mode is not stored, executes the reboil mode and then shifts to the warming mode. It is what

[0010]

According to the above configuration of the present invention, the initial boiling mode,
The heat retention mode and the reboil mode are executed at any time based on the conditions and mode selection at that time. When the descaling mode is selected when the initial boiling mode is executed, the storage unit stores the descaling mode, while the descaling mode is executed in addition to the initial boiling mode, and then the heat retention mode is entered. If the descaling mode is not selected, the initial boiling mode is executed and then the heat retention mode is immediately entered. When the re-boiling mode is selected in this heat retention mode, the descaling removal control means operates, and when the storage means stores the descaling removal mode selection in the initial boiling mode, no special descaling removal selection operation is performed. In addition, after the re-boiling mode is executed, the descaling mode is also executed, and then the warming mode is entered, so that the quality of the liquid content is controlled by the user's intention to select the descaling mode at the initial boiling. If the storage means does not remember the selection of the descaling mode in the initial boiling mode, the re-boiling mode is executed and then the warming mode is directly followed, and the calking is performed at the initial boiling. The control that respects the user's will without selecting the removal mode can prevent the heating for descaling from wasting the waiting for this.

[0011]

1 to 8 show one embodiment of an electric hot water storage container to which the present invention is applied.

As shown in FIG. 1, an inner container 2 is housed in an outer case 3 to form a body 1.

The upper end flange of the inner container 2 is received by a shoulder member 4 made of synthetic resin which is force fitted onto the upper end of the outer case 3.

A bottom ring 7 made of synthetic resin is applied to the lower end of the outer case 3, and the bottom ring 7 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 7 are integrated with each other.

A bottom lid 10 is attached to the opening of the bottom ring 7 by fitting a plurality of claws provided on the bottom lid 10 and screwing at one location.

A rotary seat body 9 is rotatably fitted on the outer peripheral portion of the lower surface of the bottom lid 10 by a plurality of claws provided on the bottom cover 10, and when the body body 1 is stationary, the rotary seat body 9 is mounted on the rotary seat body 9. 1
Can be rotated lightly.

A bottom heater 8 is provided on the lower surface of the bottom of the inner container 2.
a and 8b are applied. This bottom heater 8a, 8
Reference numeral b denotes a water heater and a heat-retaining heater. For example, the wire bottom heaters 8a and 8b are alternately wound around an annular mica plate, sandwiched between the mica plates, and housed in a case.

A heat shield plate 32 is fixed to the bottom of the bottom of the inner container 2 using a metal fitting 31, and a presser 35 is sandwiched between the heat shield plate 32 and the back side of the bottom heaters 8a and 8b. Thereby, the bottom heaters 8a and 8b are pressed against the bottom surface of the bottom of the inner container 2. The pouring pump 11 is attached to a part of the heat shield plate 32. .

In the central through holes of the bottom heaters 8a and 8b,
A temperature sensor 33 that detects the temperature of the content liquid is provided, and is thermally isolated from the bottom heaters 8a and 8b by the heat shield wall 34, and the temperature of the inner container 2 is accurately detected without the thermal influence of the bottom heaters 8a and 8b. I am able to do it.

A circuit housing box 40 is provided on the bottom ring 7 so as to open downward, and a circuit board 41 housed in the circuit housing box 40 is waterproof against water leakage from above.

Control circuit 4 mounted on this circuit board 41
Reference numeral 2 denotes a microcomputer 43 which receives output signals from the operation board 18 and detection signals from various sensors to control operation of boiling and heat retention, and display operation thereof and display control by timer selection. Is supposed to do.

At the upper end of the body 1, the body 1 formed by the shoulder member 4 is formed.
A container lid 6 for covering the mouth portion 61 of the container is provided. The inner peripheral portion of the mouth edge of the mouth portion 61 is formed into a taper 65, and the outer peripheral edge of the outer plate 64 of the vessel lid 6 is also formed into a taper surface 65.

By these tapered surfaces 65, both the contact surfaces of the body lid 6 in the closed state are aligned with each other, and the outer surfaces of the shoulder member 4 and the body lid 6 are flush with each other at the contact boundary portion 67. Become. The body lid 6 is attached to the shoulder member 4 at the rear by a hinge pin 68.
It is pivotally attached so that it can be opened and closed. The vessel lid 6 is pivotally attached to a bearing 69 formed integrally with the shoulder member 4, and when the vessel lid 6 is opened, the hinge pin 68 is used to support the bearing 6.
I am able to put on and take off from 9.

By attaching and detaching the hinge pin 68, the container lid 6 can be attached and detached, which facilitates cleaning of the inside of the container 1 and supply and discharge of the content liquid.

At the free end of the body lid 6, there is provided a lock member 71 for advancing and retracting the upper surface of the back plate 81 of the body lid 6 to lock the body lid 6 in the closed state.

The locking member 71 is integrally formed with a locking projection 72 at its front end, and has a sliding contact surface 73a at its rear end 73.

The spring 76 presses and urges the lock member 71 so that the locking projection 72 at the tip end elastically engages with the engagement hole 70 formed in the shoulder member 4, and the body lid 6 is attached to the shoulder member 4. Keep closed.

A cam portion 79b of a lock release lever 79 having an operating portion 79a is in contact with the rear end portion 73 of the lock member 71. The lock member 79 is rotatably attached to a bearing portion in the body lid 6 by a shaft 78.

The lock release lever 79 is the lock member 7.
When 1 is advanced to the engagement position by the spring 76, the operation portion 79 a is inserted into the upper surface opening 80 of the body lid 6 at the body lid 6.
It is flush with the surface of.

On the lower surface of the back plate 81 of the vessel lid 6, the inner container 2
A metal inner lid 85 that closes the rear of the
It is screwed at 3. Outer periphery of inner lid 85 and back plate 81
A seal punk 84 facing the edge of the inner lid 85 is sandwiched between the inner lid 85 and the inner lid 85. When the body lid 6 is closed, the inner lid 85 contacts the edge of the inner container 2 with the seal packing 84. , The inner container 2 is closed.

As shown in FIG. 3, a steam passage 87 is provided between the back plate 81 and the inner lid 85 to let steam generated in the inner container 2 escape to the outside.

This steam passage 87 has an opening 86 to the inner container 2 side in the inner lid 85, and has an opening 52 to the outside on the upper surface of the rear side of the vessel lid 6.

A liquid reservoir 90 fitted from below through a seal member 88 is pressed by a back plate 81 into the opening 86.

The liquid storage body 90 is annular and has a valve chamber 91 that accommodates a water stop valve 92 for a fall which is closed when the body 1 falls.
And a first area 93 divided into several parts, and this first area 93
Forming a content liquid reservoir chamber consisting of a second region 94 around the.

Immediately downstream of the valve chamber 91, a reservoir 50 having a wide space reaching the upper portion of the vessel lid 6 is provided. In this pool portion 50, a downstream outlet 51 communicating with the opening 52 is oriented laterally and the passage cross-sectional area is reduced.

Various arrangements have been made with respect to the outlet 51 such that the shape of the reservoir 50 is widened in the front, rear, left and right directions of the body 1 and the upper surface side of the body lid 6. .

As a result, when the water stop valve 92 at the time of fall moves to the position shown by the phantom line when the body 1 falls to the front or rear or to the left or right, the liquid content is stopped by the water stop valve 92 at the time of fall. When the content liquid is attempted to flow out through the vapor passage 87 without being blocked, the content liquid to be flowed out is stored in the reservoir 50, and the flow of the content liquid to the downstream side is suppressed or prevented until the content liquid overflows.

Further, the first region 93 and the second region 94 of the liquid reservoir 90 suppress the outflow of the content liquid to the outside, and return the body 1 to a normal state before the outflow to the outside. You can give a sufficient margin.

When the body lid 6 is opened, when a finger is put into the upper surface opening 80 and the operating portion 79a is lifted, the lock release lever 79 rotates clockwise, and the lock release lever 79 is rotated.
The rear end portion 73 of the lock member 71 is pressed by the cam portion 79b.

As a result, the lock member 71 is pushed and retracts against the spring 76, so that the engagement between the engagement hole 70 and the engagement projection 72 is released.

Further, when the operating portion 79a is moved upward, the unlocked body lid 6 is opened. The spring 76 presses the lock member 71 by a natural operation of releasing the hand from the operation portion 79a, and the locking projection 72 is projected from the free end portion of the body lid 6.

On the other hand, when the body lid 6 is closed, when the body lid 6 is rotated, a locking projection 72 is formed on the inner peripheral edge portion 62 of the shoulder member 4.
When is inserted, it is projected and locked by the pressing force of the spring 76.

In this closed state, the base lid 6 is locked by the inner lid 85 provided on the inner surface side. In this closed state, the mouth of the inner container 2 is closed by the inner lid 85 provided on the inner surface side of the vessel lid 6. At this time, the seal packing 84 seals between the inner lid 85 and the mouth of the inner container 2.

At the bottom of the inner container 2, a pouring path 12 for pouring out the content liquid is connected. The pouring path 12 rises up to the inside of the beak-shaped protrusion 5 provided in the front portion of the shoulder member 4 in the space between the inner container 2 and the outer case 3.

The beak-shaped protrusion 5 protrudes from the shoulder member 4, and a passage cover 15 forming a part of the beak-shaped protrusion 5 is fitted in the downward opening. A lower cover 15a and a liquid injection guide 16 are integrally formed with the passage cover 15, and the discharge port 19a is covered with the outer surface of the body 1 and the discharge port 19a is exposed downward.

At the portion of the pouring path 12 below the inner container 2, the content liquid flowing into the pouring path 12 is discharged from the outlet 1.
A pouring pump 11 for feeding to 9a is provided and is driven by a motor. Although not shown in the drawing, the rising portion of the pouring path 12 has the same liquid level as the inner container 2, so that the liquid amount is detected by using a capacitance or a photo sensor. A detector is provided.

The discharge port 19 is made of elastic silicon rubber, and an annular seal portion 20 is integrally formed in the middle of the discharge port 19, and a protruding portion 19b is provided at the lower portion of the seal portion 20.

The discharge pipe 19 is connected to the connecting pipe 14, and when the passage cover 15 is attached to the beak-shaped protrusion 5, the protrusion 19b abuts on the inner peripheral wall 16c of the liquid injection guide 16. Also, at the edge of the upper opening 16a of the liquid injection guide 16,
The seal portion 20 abuts and is firmly held while being pressed by a pressing force.

As a result, the upper opening 16a and the lower opening 16b of the liquid injection guide 16 which are the openings of the beak-shaped protrusion 5 are formed.
The annular gap G formed between the lower end of the discharge pipe 19 and the lower end of the discharge pipe 19 is sealed by the seal portion 20.

Further, the discharge pipe 19 is provided with a slit 19c in the length direction of the discharge pipe 19 at a part of the end edge of the lower end, and when the content liquid is discharged from the lower end, it is opened to the atmosphere at the upper end of the slit 19c. Therefore, it is possible to discharge as a quiet laminar flow without splash.

An operation panel 17 is provided on the upper surface of the beak-shaped protrusion 5, and an operation substrate 18 is accommodated in a recess 30 provided in the lower portion of the operation panel 17. On the operation panel 17 ,. As shown in FIGS. 2 to 4, the dispensing operation key 1
31, re-boiling / descaling removal selection key 132, timer selection key 133 and related display lamps 134 to 13
7. A pouring lock / unlock key 138 and a display lamp 139 associated therewith are provided.

On the operation board 18, two first and second switches 141 and 142 facing the pouring key 131, and three switches 143 to 145 facing the other keys 132, 133 and 138, respectively. The indicator lamps 134-1
37, 139, a resistor 147, and a connection terminal group 148.
Is a printed wiring board equipped with.

Each of the keys 131 to 133 and 138 constitutes a switch operating member located in the through hole 151 of the operation board 18, and is operated via a part of the rim of the through hole 151 of the operation board 18 and the resin spring 152. Actuators 141a to 145a of the switches 141 to 145 which are integrally formed on the substrate 18 and are moved downward with the elastic deformation of the resin spring 152 portion.
Can be pushed, and after the operation, can be returned to the normal position by the elastic restoring force of the resin spring 152.

In particular, the pouring key 131 is provided with first and second switch pushing protrusions 131a and 131b which are formed downward at positions separated from each other. Pouring key 131
First and second switch pressing protrusions 131a, 131b
Between the first switch pushing protrusion 131a and the operating portion 1
31a is provided, and after the pushing to the operation portion 131c preferentially acts on the first switch pushing projection 131a, the pushing point of the actuator 141a of the first switch 141 by the first switch pushing projection 131a is set. As a fulcrum, it acts on the second switch pressing protrusion 131b.

As a result, the operating portion 1 of the dispense key 131
The pushing operation force applied to 31c preferentially acts on the side of the first switch pushing protrusion 131a, and this is applied to the first switch 1
The actuator 41a of No. 41 can be pressed to operate only the first switch 141.

The side of the second switch pushing protrusion 132a is also moved downward, but the actuator 1 of the second switch 142 is
It is not moved down until it comes into contact with 42a, or even if it is moved down, the operating force until it is pushed is not transmitted. Pouring key 13
This is because the elasticity of 1 itself causes the escape.

When the operating portion 131c is pushed further, the pouring key 131 is swung about the pushing point with respect to the actuator 141a of the first switch 141 by the first switch pushing projection 131a as a fulcrum. The second switch 142 can be operated while pressing the second switch pressing protrusion 131b against the actuator 142a of the second switch 142 to keep the first switch 141 in the pressing operation state.

Further, the first switch pushing protrusion 131a and the first switch pushing protrusion 131a
The facing distance S1 between the switch 141 and the actuator 141a is equal to the facing distance S between the second switch pushing protrusion 131b and the actuator 142a of the second switch 142.
Selected smaller than 2.

Therefore, the operating portion 13 of the dispense key 131
The first push operation force received by 1c preferentially acts on the first switch push projection 131a to cause the first switch 14 to move.
The pushing operation of 1 alone becomes reliable.

Further, in the pouring key 131, the side of the first switch pressing protrusion 131a is elastically supported by the resin spring 152. Moreover, the resin spring 15
2 is located in the gap between the pouring key 131 and the through hole 151, extends from the supporting point 153 with the pouring key 131 toward the second switch pressing protrusion 131b, and is continuous with the inner edge of the through hole 151. It has an elongated shape with a portion 154, and the pouring key 1
When 31 pushes the operating portion 131c, it is easy to swing in addition to vertical movement.

Therefore, when the one operation portion 131c is pushed, the switch pushing protrusions 131a and 131b are pushed.
The first switch 141 and the second switch 14 according to
The delicate movement of the two-step push operation for 2 is smoothly performed.

On the operation portion 131c side of the pouring key 131, a large flat portion 131d is provided with a second switch pressing protrusion 1.
The side of 31b is formed into an elongated planar shape portion 131e extending from the large planar shape portion 131d, and is located in the through hole 151 of the operation panel 17 formed along the contours of the large planar shape portion 131d and the elongated planar shape portion 131e. It is supposed to do.

Therefore, although the operating portion of the pouring key 131 is located in the large plane-shaped portion 131d and is located in the through hole 151, the large plane area is the through hole 151 as the escape portion of the finger for the pushing operation. It will be pushed in and you will be able to perform the pushing operation without any trouble.

On the other hand, the elongated flat portion 131e provided with the second switch pushing protrusion 131b is located within the narrow portion 151a of the through hole 151 along the outer periphery of the second flat portion 131e so as to make it difficult to receive pushing force from the outside. be able to.

On the upper surface of the operation panel 17, a resin-made thin film panel sheet 150 as shown in FIG. 5 is provided.
As shown in FIG. 11, the seal cover of the operation panel 17 and the sheet for performing necessary display are combined.

The microcomputer 43 has a clock transmission circuit 161, receives the basic clock from the clock transmission circuit 161, and selects an initial boiling mode, a heat retention mode, and a reboil mode based on the conditions and mode selection at each time. Executed by software control at any time.

In the microcomputer 43, the operation board 18, the temperature sensor 33, the liquid amount detection circuit 160, the pump drive circuit 162, the power supply circuit 1 are provided for the above various controls.
70, the bottom heaters 8a and 8b, the pump drive circuit 162, and the switching transistors 163 to 165 which individually control the bottom heaters 8a and 8b, and the buzzer 166.
Are connected to form a control circuit 42 as shown in FIG.

The control circuit 42 controls the operation of the relay 171 having the relay contact 171a for turning on / off the pump drive circuit 162 by the switching transistor 163, and the switching transistor 164 controls the bottom heater 8a, Turn on the heater for boiling water in 8b,
The operation of the relay 172 having the relay contact 172a to be turned off is controlled. Also switching transistor 165
Then, the operation of the triac 174 for controlling the energization of the heater for keeping heat in the bottom heaters 8a and 8b is controlled.

The first switch 141 is adapted to directly turn on / off the switching transistor 163, whereby the relay 171 is turned on / off and the pump drive circuit 162 is turned on / off via the relay contact 171a.

The ON state of the pump drive circuit 162 in this case is the first state when the pushing operation of the dispensing key 31 in the first stage is performed.
The switch 141 is turned on to drive the pouring pump 11 at a low speed. Therefore, pouring with a small flow rate is performed.

The second switch 142 turns on / off the connection line between the pump drive circuit 162 and the microcomputer 43. After the pouring key 31 presses the first switch 141, the second switch 142 is operated. At the time of the pushing operation of the second stage, the first switch 141 is turned on while maintaining the on state, whereby the driving of the pouring pump 11 is changed to the high speed state, and the pouring state is switched to the large flow rate. .

In short, it is possible to accurately perform the selective operation between the small flow rate dispensing state and the large flow rate dispensing state by the two-step pushing operation of the dispensing key 31 with a sufficient stroke difference without fail. Can be achieved.

Each time the re-boiling / scalping removal selection key 132 is pressed, the re-boiling mode and the descaling removal mode are alternately selected. The re-boiling selection means and the descaling removal selection means are used in combination. To be done. Then, the display of the properly used state is displayed by turning on and off the display lamp 136. Therefore, both modes can be freely selected by viewing and operating the current display.

The heating of the content liquid is controlled according to the information of the content liquid temperature input from the temperature sensor 33 and various heating modes such as the initial boiling mode, the descaling mode and the re-boiling mode.

When the power is turned on, when the content liquid is lower than a predetermined heat retention temperature, that is, when water is first added and when water is replenished, the initial boiling mode is automatically selected and the content liquid is once initially boiled. After that, the temperature is automatically switched to the heat retention mode to keep the content liquid at a predetermined heat retention temperature.

By the boiling of the content liquid, impurities and odors in the content liquid are diffused to some extent. However, the user who is not perfect yet is anxious to select the descaling mode. In the descaling mode, in the present embodiment, the content liquid is allowed to continue to the boiling state for a predetermined time, and then transitions to the heat retention mode.

When the reboil mode is selected, the content liquid in the heat retaining state is boiled again and then returned to the heat retaining mode.

The initial boiling state and the re-boiling state are displayed by turning on the display lamp 134.

In particular, in the present embodiment, when the descaling removal mode is selected in the initial boiling mode in addition to the above, the re-boiling / descaling removal selection key 132 for making this selection is instantly and automatically restored. The storage means as an internal function of the microcomputer 43 for storing the selection and the re-boiling mode followed by the descaling removal mode when the selection of the descaling mode when the re-boiling mode is selected are stored. To a heat retention mode, and when the selection of the descaling mode is not stored, a reboil mode is executed and then a descaling control means as an internal function of the microcomputer 43 for shifting to the heat retention mode is provided. There is.

As a result, when the descaling mode is selected when the initial boiling mode is executed, the internal function of the microcomputer 43 stores this, while the descaling mode is executed in addition to the initial boiling mode. After that, it shifts to the heat retention mode. If the descaling mode is not selected, the initial boiling mode is executed and then the heat retention mode is immediately entered.

When the reboil mode is selected in this heat retention mode, the microcomputer 43 works to cause a special operation when the microcomputer 43 stores the descaling mode selection in the initial boiling mode. Without performing the descaling removal selection operation, the reboiling mode is executed and then the descaling mode is also executed and then the heat retention mode is entered. As a result, the quality of the content liquid can be improved by the control that respects the intention of the user who has selected the descaling mode at the initial boiling.

Further, when the microcomputer 43 does not store the selection of the descaling mode in the initial boiling mode, the microcomputer 43 executes the re-boiling mode and then shifts to the heat retention mode as it is, so that the initial boiling mode is set. The control that respects the intention of the user who did not select the descaling mode can prevent the heating for descaling from wasting the waiting for this.

Each time the timer selection key 133 is operated,
The timer selection state and timer selection deselection state alternate,
This is displayed by turning on and off the display lamp 137.

In the timer selected state, the boiling content liquid having a predetermined temperature is obtained after heating the content liquid for 6 hours, or the boiling and descaling content liquid is obtained depending on the selection of the descaling mode.

When the reboil mode is selected, it is necessary to perform the boiling process by the immediate heating of the content liquid. Therefore, if the timer is selected, this is automatically canceled so that the immediate heating can be performed. To do. Therefore, the inconvenience that the user has to bother to cancel the timer selection along with the selection of the reboil mode is eliminated.

The timer may be selected from a plurality of times or arbitrary times.

Each time the pouring lock / unlock key 134 is operated, even if the pouring key 131 is pressed, the pouring pump 1
1 is prevented from operating, and a pouring lock state in which the content liquid is not poured out and a lock release state in which such pouring stop is released and pouring is possible are alternately switched. .

The pouring lock function prevents the pouring when the pouring key 131 is inadvertently pushed or when the infant manipulates it by mischief to ensure the safety of use.

FIG. 7 shows the main routine of each operation control by the microcomputer 43, and FIGS. 8 to 11 show one of the heating processing subroutines for carrying out the initial boiling mode, the re-boiling mode, and the descaling mode by continuing boiling. 12 shows a pouring process subroutine for pouring out the content liquid at different flow rates by the first and second switches 141 and 142.

In the heat treatment subroutine of FIGS. 8 to 11, when the power is turned on or water is replenished and the content liquid is at a predetermined temperature, for example, 80 ° C. or less, the boiling flag is set to 1 to boil the content liquid. Run the initial boiling mode, reset the selection flag to 0, and notify the buzzer of boiling.
The display is turned on and the boiling flag is set to 0 and the selection flag is set to 1 (FIGS. 8, 9, and 11). Then, after the initial boiling, returning to FIGS. 8 and 9, a heat retention routine (not shown) is entered, and the heat retention mode is switched in a control state in which the descaling mode is omitted.

In the initial boiling mode, when the reboiling / descaling removal selection key 132 is operated for the first time, the continuous boiling flag is set to 1 because the boiling flag is 1 in the flow charts of FIGS. 8 and 10. When both the boiling flag and the continuous boiling flag are set to 1, the descaling display is performed (FIG. 9), and then the addition time selection and the descaling timer flag are set to 1 (FIG. 11).

Then, in the routine of FIG. 11, the boiling is continued while the flow of FIGS. 8 and 9 is continued until the addition timer is finished, and when the addition timer is finished, the descaling process by continuing the boiling is finished.

At this time, in the process of FIG. 11, the bleach timer flag is reset to 0 and the selection flag is set to 1 to notify the buzzer of the boiling and the lighting is displayed, and the boiling flag is reset to 0 and the continuous boiling flag is set. It is set to 1 and the state that the descaling mode is set in the initial boiling mode is stored.

After the descaling process, returning to FIGS. 8 and 9, a heat retention routine (not shown) is entered to switch to the heat retention mode.

When the reboiling / descaling removal selection key 132 is operated again after such processing, since both the selection flag and the continuous boiling flag are 1, the continuous boiling flag is passed through the flow of FIGS. 8 to 9. Set both the boiling flag and the boiling flag to 1 so that descaling by continuing boiling can be automatically performed without any special operation by the user.
The quality of the content liquid can be improved by the control that respects the intention of the user who has selected the descaling mode at the initial boiling.

Reboiling / descaling key 13 in the heat-retention state after the so-called general boiling process in which only the initial boiling process is performed and the heat-removing mode is switched to without performing the descaling process.
When 2 is operated, the selection flag is set to 1, but the continuous boiling flag is reset to 0. Therefore, the boiling flag is set to 1 from the flow of FIG. 8 through the flow of FIG.
Is set to.

As a result, even if the content liquid exceeds 80 ° C., the content liquid is boiled through the flow of FIGS. 9 and 11.
However, since the continuous boiling flag is reset to 0,
In FIG. 11, the descaling is not executed and the process returns to the heat retention mode. Therefore, it is possible to prevent the heating for removing the descaling from being wasted in the standby for the control by respecting the intention of the user who did not select the descaling mode at the initial boiling.

According to the pouring processing control of FIG. 12, while the first switch 141 is being independently pushed, the pouring at a small flow rate is continued due to the low speed driving of the pouring pump 11,
While the switch 142 of is also being pushed, the pouring at the large flow rate is continued by the high speed drive of the pouring pump 11, and when the pushing operation state of the first switch 141 alone is returned, the pouring at the small flow rate is performed. Return to the exit state.

Pour-out lock state and first switch 1
When 41 is not pushed, the pump 11
Is put to a standstill. Therefore, even if the first and second switches 141 and 142 are pushed in the dispensing lock state, the content liquid is not dispensed, and the second switch 14 should not be dispensed.
Even if 2 is operated independently, the content liquid is not poured out.

13 to 15 show a second embodiment of the present invention. In this embodiment, a reboil key 201 and a descaling key 202 are individually provided as shown in FIG. 13, and two protrusions 202a and 202b provided on the descaling key 202 are provided.
To switch the first and second switches 203 and 204 to 2
It can be operated in steps.

Then, the first and second switches 203, 3
Depending on the pushing operation state of 04, the descaling mode is selected or deselected.

Specifically, as shown in FIG. 14, when the first switch 141 is independently operated, the selection flag is set to 1
As shown in FIG. 15, while this is set, the descaling is performed by continuing the boiling for a predetermined time not only during the initial boiling that is performed when the content liquid is at a predetermined temperature or lower, but also during the reboiling. Is done.

This is because the user who selects the descaling at the initial boiling wants the descaling to be performed at every opportunity, so the descaling mode should be changed by the user at the time of re-boiling. It does not need to be selected.

Then, the first and second switches 203, 20
When 4 are simultaneously pushed, the selection flag is reset to 0 to cancel the selection of the descaling mode.

As a result, the descaling mode once selected can be canceled at any time during use.

However, the mode selection such as descaling can be canceled by the initial selection when the power is once turned off and then turned on for the next use.

[0107]

According to the electric hot water storage container of the present invention, the initial boiling mode, the heat retention mode, and the reboil mode are executed at any time based on the conditions and the mode selection at that time. When the descaling mode is selected when the initial boiling mode is executed, the storage unit stores the descaling mode, while the descaling mode is executed in addition to the initial boiling mode, and then the heat retention mode is entered. If the descaling mode is not selected, the initial boiling mode is executed and then the heat retention mode is immediately entered.
When the re-boiling mode is selected in this heat retention mode, the descaling removal control means operates, and when the storage means stores the descaling removal mode selection in the initial boiling mode, no special descaling removal selection operation is performed. In addition, after the re-boiling mode is executed, the descaling mode is also executed, and then the warming mode is entered, so that the quality of the liquid content is controlled by the user's intention to select the descaling mode at the initial boiling. If the storage means does not remember the selection of the descaling mode in the initial boiling mode, the re-boiling mode is executed and then the warming mode is directly followed, and the calking is performed at the initial boiling. The control that respects the user's will without selecting the removal mode can prevent the heating for descaling from wasting the waiting for this.

[Brief description of drawings]

FIG. 1 is a sectional view of an electric hot water container as a first embodiment to which the present invention is applied.

FIG. 2 is a cross-sectional view showing an operation panel section of FIG.

FIG. 3 is a bottom view of a part of the operation panel.

FIG. 4 is a perspective view showing an operation panel and an operation board in a disassembled state.

FIG. 5 is a plan view showing a cover sheet of an operation panel.

FIG. 6 is a schematic configuration diagram of a control circuit.

FIG. 7 is a flowchart showing a main routine of main operation control of a control circuit.

FIG. 8 is a partial flowchart of a heating processing subroutine.

FIG. 9 is a partial flowchart of a heating processing subroutine.

FIG. 10 is a partial flowchart of a heating processing subroutine.

FIG. 11 is a partial flowchart of a heating processing subroutine.

FIG. 12 is a flowchart of a pouring process subroutine.

FIG. 13 is a plan view of an operation panel showing a second embodiment of the present invention.

14 is a first-stage flowchart of a heating processing subroutine performed by an operation from the operation panel in FIG.

FIG. 15 is a flowchart of a latter stage of the heating processing subroutine continued from FIG.

[Explanation of symbols]

 8a, 8b Bottom heater 33 Temperature sensor 42 Control circuit 43 Microcomputer 132 Reboiling / descaling removal selection key 202 Descaling removal key

Claims (1)

[Claims] 1. By heating the content liquid with a heater
Ri, an initial boiling mode to no power-on of the contents liquid temperature is once boiled liquid contents when less than a predetermined temperature, after boiling
A heat insulation mode incubating the contents liquid to a predetermined temperature, chlorine removal mode for the reboiling mode back to the contents liquid is boiled again incubated mode insulation mode, continuing to chlorine removal boiling Teng a predetermined time In the electric hot water storage container for performing the reboiling selection means for selecting the reboiling mode and the descaling
Descaling selection means to select the mode and initial boiling mode
Sometimes remember this when the descaling mode is selected
Means of storage and calculus when reboil mode is selected
Pressurizing the reboiling mode select removal mode is stored
Execute the descaling mode and then shift to the heat retention mode
And the selection of the descaling mode is not stored.
Runs reboil mode and then shifts to warm mode
An electric hot water storage container comprising a descaling control means .