JPH03295517A - Composite hot-water supplier - Google Patents

Abstract

PURPOSE:To obtain the composite kettle being safe and sure by interlocking an open circuit and a closed circuit in reverse with respect to a first kettle in which an auxiliary heating device and a first main heating device are connected in parallel, and a second kettle connected in series to a second main heating device, and discharging hot water from one of discharge ports of two parts. CONSTITUTION:When hot water is desired, a single-pole double-throw switch 41 forms a second series circuit 42 by a first series circuit 39 and an auxiliary heating circuit 40, and hat water of the desired quantity is obtained. Also, when coffee is desired, as soon as a second switch 47 is turned on and water is heated, a first switch 38 interlocked with a second switch 47 closes a bridge circuit 37 and a circuit of single-pole double-throw switch 41. Accordingly, when a second switch 47 is closed, a first switch 38 is opened and DC motor 10 does not operate, hot water is not discharge from a first container, and also, when first switch 38 is closed, a second switch 47 is opened and hot water is not discharged from a second container.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a multiple water heater for general household use.

BACKGROUND OF THE INVENTION Conventionally, it has been common for a combination product of an electric coffee boiler and an electric water heater of this type, in which a hot water outlet is provided nearby, to be equipped with an independent power switch.

Problems to be Solved by the Invention In such a conventional configuration, if the electric coffee boiler is operated by mistake due to the power switch being operated incorrectly, hot water will be discharged from an unexpected outlet and the original purpose will be discharged. There were times when I was unable to brew delicious coffee using an electric coffee boiler.

The present invention solves these problems, and aims to provide a composite water heater that discharges water from only one of the two discharge ports at most.

Means for Solving the Problems In order to solve the above problems, the present invention provides a first container, a first main heating device provided in the first container, and an auxiliary heating device provided in the first container. an electric water supply device having one end communicating with the bottom of the first container and the other end communicating with the first discharge port; a second container; and a check valve in the bottom of the second container. a flow path having one end communicating with the second discharge port provided in the vicinity of the first discharge port and the other end communicating with the second discharge port provided in the vicinity of the first discharge port, and a second main heating device heating a part of the flow path; a first switch connected in series with the electric water supply device to form a first series circuit; and a second switch connected in series with the auxiliary heating device and the first series circuit to form a second series circuit. a first water heater configured with a changeover switch that connects the auxiliary heating device and the first main heating device in parallel by switching to form a first parallel circuit; and the second main heating device. connected in series with the device to form a second water heater;
This switch is composed of a switch and a second switch whose opening and closing are reversely linked.

For production It is possible to provide a composite water heater that can.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 to 3.

In the figure, 1 is a main body formed into a rectangular parallelepiped with a plurality of steel plates. Reference numeral 2 denotes a substantially cylindrical first container made of stainless steel or the like and built into the rear part of the main body 1. Reference numeral 3 denotes a storage section formed in a recessed portion on the front surface of the main body 1. A second container 4 is made of synthetic resin and has an outer shape that follows the shapes of the first container 2 and the storage section 3. The bottom of the first container 2 is equipped with a first main heating device 5 and an auxiliary heating device e formed by winding heating wires around an insulator such as mica. 7 is a triac that controls the energization of the auxiliary heating device 6. 8 is a first temperature fuse that is activated when the first main heating device 5 generates abnormal heat. Reference numeral 9 denotes a centrifugal discharge pump driven by a DC motor 1o, with one end communicating with the first container 2 and the other end communicating with the oval-shaped first water raising pipe 11. 1
゜ and form an electric water supply device. Reference numeral 12 denotes a first discharge port provided in the upper part of the storage section 3, which communicates with the first water raising pipe 11 via an L-shaped tube 13. 1
Reference numeral 4 denotes a step section provided upward at approximately the center of the bottom of the first container 2, and a temperature detection section 16 using a scissor limiter.
is attached thermally. 16 is a second main heating device having a heater body 17iC sheathed heater 18 and a stainless steel pipe 19 thermally attached to the heater body 17 cast from aluminum; One end of the pipe 19 is communicated with the bottom of the second container 4, and the other end is communicated with the second rising pipe 21. Reference numeral 22 is an L-shaped tube that communicates with the second rising pipe 21 and is attached through a through hole 23 provided near the first discharge port 12 in the upper part of the storage section 3. This is the second outlet. Said stainless steel pipe 1
9 and the second water rising pipe 21 form a flow path.

Reference numeral 24 denotes a thermostat which is thermally attached to the heater body 17 and controls the supply of electricity to the sheathed heater 18 according to the temperature of the heater body 17. 26 is a second temperature fuse that is activated when the sheathed heater 18 generates abnormal heat. Reference numeral 26 denotes an inverted conical flow regulating member located below the first discharge port 12 and the second discharge port 22, provided on the top surface of the storage portion 3, and having a flow regulating port 27 at the lower part. Inside the rectifying member 26, four rectifying plates 28 are attached in a vertical direction surrounding the rectifying port 27. The current plate 28 is the first
The force of the flow of hot water from the second discharge port 12 and the second discharge port 22 is adjusted to flow out from the rectifying port 27.

29 is a glass container placed on the second main heating device 16; 3o is a filter paper filter containing coffee powder 31; this paper filter 30 is set in the coffee basket 32; Next, the electric circuit will be explained.

33 is a control board that controls the electric circuit. 34 is a relay that controls the supply of electricity to the first main heating device 5 by the control board 33. The control board 33 receives a signal from the temperature detection section 15 and controls the first main heating device 5 by means of a relay 34 . The control board 33 also controls the triac 7 to energize the first main heating device 5 until the water in the first container 2 boils, and to keep the hot water in the first container 2 at about 95 degrees Celsius. and auxiliary heating device 6
Controls energization to.

Further, the control board 33 controls the rotation speed of the DC motor 1o according to the rotation angle of a discharge knob 36 formed of a rotary variable resistor and attached to the control panel 36.
cormorant. 37 is a bridge circuit which is a power supply circuit for the pump 9. A first switch 38 is connected in series with the bridge circuit 3 to form a first series circuit 39. The triac 7 is connected in series with the auxiliary heating device 6 to form an auxiliary heating circuit 4o. 41
is a single-pole double-throw switch forming a changeover switch, and is interlocked with the rotation of the discharge knob 36. When switched to one side in conjunction with the rotation of the discharge knob 36, the first series circuit 39 and the auxiliary heating circuit 4o are connected in series and the second series circuit 39 is connected in series.
A series circuit 42 is formed. When the discharge knob 36 is released, the switch is switched to the other side, and the main heating circuit 43 and the auxiliary heating circuit 4o are formed by connecting the first temperature fuse 8 and the relay 34 in series with the first main heating device 6. are connected in parallel to form a first parallel circuit 44.

Reference numeral 45 denotes a water heater switch, which is connected in series with the first parallel circuit 44 to form a first water heater 46 .

4A is a second switch, which is the first switch 38.
When the first switch 38 is on, the second switch 47 is turned off, and when the first switch 38 is off, the second switch 47 is turned on. The second switch 47, the second temperature fuse 25, and the thermostat 2
4 and the second main heating device 16 form a second water heater 48. The first water heater 46 and the second water heater 48 are connected in parallel to a power source 49. 6o is a pair of rails for taking the main body 1 in and out of the storage wall 61, and 62 is a third switch. Third
The switch 52 is connected in series with the drive circuit 54 of the electromagnet 53 and connected to the power source 49. third switch 5
When 2 is pressed, the electromagnet 53 is activated, and the main body 1 slides on the rail 5o and presses the rail 5o. 55 is the first container 2
A steam passage 66 is provided with one end opening above the first container 2 and the other end opening outside the lid 55. The lid 55 is opened and closed by rotating around the hinge part 67 and operating the lock knob 58. 59 is a drain valve for the first container 2. 60 is a cord reel for power supply.

Next, the operation of the composite water heater having the above configuration will be explained.

The state of each switch in the electric circuit at this point is as shown in FIG. First of all, the third switch 52
Press to activate the electromagnet 53 and pull out the main body 1 by sliding it on the rail 6o. Push the lock knob 58 to open the lid 66 and fill the first container 2 with water. Next, turn on the water heater switch 46.

The control board 33 activates the relay 34 and energizes the first main heating device 6 . The water turns into hot water by the first main heating device 5 and eventually boils. The temperature detection unit 15 detects boiling, and the control board 33 inputs the signal to cut off the power to the first main heating device 5. After that, the control board 33 becomes the temperature detection section 16.
While detecting the signal, the supply of electricity to the auxiliary heating device 6 is controlled via the triac 7 to maintain the temperature of the water in the first container 2 at approximately 95 degrees Celsius. When hot water is desired, press the discharge knob 3.
Turn 6. A single-pole double-throw switch 41 that operates in conjunction with the discharge knob 36 forms a second series circuit 42 with the first series circuit 39 and the auxiliary heating circuit 4°, and the control board 33 detects the rotation angle of the discharge knob 36. Drive the DC motor 1o. The hot water in the first container 2 is supplied to the pump 9 from the first water rising pipe 11 to the L-shaped tube 13. It passes through the first discharge port 12 and flows into the rectifying member 26 . Inside the rectifying member 26, the flow of hot water is adjusted by the rectifying plate 28, and the hot water flows through the rectifying port 2.
It flows out from 7. This is then placed in a container (not shown). When the desired amount of hot water is obtained, the discharge knob 36 is returned to its original position. The control board 33 detects the signal from the discharge knob 36 and stops the rotation of the DC motor 10. In this way, the desired amount of hot water is obtained. Further, the control board 33 detects the signal from the discharge knob 36 and stops the rotation of the DC motor 1o, and the single-pole double-throw switch 41 disconnects the first series circuit 39 and the auxiliary heating circuit 40 to separate the auxiliary heating circuit 4o from the main one. heating circuit 43
are connected in parallel to enable energization to the auxiliary heating device e and return to the heat retention state. In the heat retention state, the signal from the temperature detection section 15 causes the relay 34 to be opened, and the first main heating device 6 is not energized.

Next, when coffee is desired, a predetermined amount of water is poured into the second container 4, coffee powder 31 is stored in the paper filter 30, set in the coffee basket 32, and placed in the glass container 29.
Place it on. This glass container 29 is placed on the second main heating device 16 .

The water in the second container 4 passes through the check valve 20 and partially fills the inside of the stainless steel pipe 19 and the inside of the second water rising pipe 21.

At this point, the second switch 47 is turned on.

The supply of electricity to the sheathed heater 18 is started, the temperature of the second main heating device 16 rises, and the water in the stainless steel pipe 19 is heated. Simultaneously with the energization of the second switch 47, the first switch 38, which operates in conjunction with the second switch 47, closes the circuit of the bridge circuit 37 and the single-pole double-throw switch 41. Therefore, no current flows through the bridge circuit 37, and even if the discharge knob 36 is operated, the DC motor 1o will not rotate and the pump 9 will not operate. Part of the water in the stainless steel pipe 19 boils, and the expansion force of the steam and the action of the check valve 2o push the hot water in the cystineless pipe 19 and the hot water in the second rising pipe 21 to the second rising pipe. The water flows into the flow regulating member 26 from the discharge port 22 of the flowchart. Inside the rectifying member 26, the flow of the hot water is adjusted by the rectifying plate 28 and flows out from the rectifying port 27. The hot water that flows out is discharged and falls onto the coffee grounds 31 in the coffee basket 32. Water flows into the stainless steel pipe 19 and the second water rising pipe 21 from the second container 4 via the check valve 20, and water boiling is repeated until the water in the second container 4 runs out. The hot water dripped onto the coffee powder 31 extracts coffee liquid, is filtered through a paper filter 30, and is stored in a glass container 29. When the water in the second container 4 runs out, the second main heating device 16 enters a dry firing state, the temperature rises, and the thermostat 24 is operated to cut off the power supply to the sheathed heater 618. The thermostat 24 is the second main heating device 1
The power supply to the sheathed heater 18 is controlled so as to maintain the temperature of the sheathed heater 18 at about 120 degrees Celsius. As mentioned above, when the coffee has finished brewing, the coffee in the glass container 29 is in the second state.
The main heating device 16 maintains the temperature at approximately 90 degrees Celsius. A desired amount of coffee is poured from the glass container 29 into a cup (not shown) as needed.

Therefore, according to the configuration of this embodiment, the second switch 4
7 to extract coffee, the first switch 38 is open and the DC motor 1o does not operate, and therefore the pump 9 does not operate, so hot water from the first container 2 is not discharged. In addition, when the first switch 38 is closed, the second switch 47 is opened and hot water is not discharged from the second container 4, which enables safe operation and prevents burns etc. due to incorrect operation. can be prevented.

In addition, in the embodiment of the present invention, the rectifying port 27 is located below between the first discharge port 12 and the second discharge port 22, but the fourth
As shown in the figure, the first discharge port 12 generally has a large discharge amount.
The rectifying port 27 may be located below.

Effects of the Invention As described above, according to the present invention, the first container and the first
a first main heating device provided in the container, an auxiliary heating device provided in the first container, and an electric device having one end communicating with the bottom of the first container and the other end communicating with a first discharge port. a second container, one end of which communicates with the bottom of the second container through a check valve, and the other end of which communicates with a second outlet provided near the first outlet. a second main heating device that heats a part of the flow path, a first switch that is connected in series with the electric water supply device to form a first series circuit, and the auxiliary heating device. and the first series circuit are connected in series to form a second series circuit, and by switching, the auxiliary heating device and the first main heating device are connected in parallel to form a first parallel circuit. a first water heater, which is connected in series with the second main heating device to form a second water heater, and whose open and close circuits are reversely interlocked with the first switch; By configuring the water heater with the two switches, it is possible to provide a composite water heater that can be operated more safely and reliably since only one of the two discharge ports discharges at most.

[Brief explanation of drawings]

Figures 1 to 3 show one embodiment of the present invention.
2 is an electric circuit diagram, FIG. 3 is an overall perspective view, and FIG. 4 is a sectional view of a rectifying port. 2...First container, 4...Second container, 6...First main heating device, 6...Auxiliary heating device, 9・・・・・・Pump, 1o・・・・・・
DC motor 12...First discharge port, 16.
...Second main heating device, 19...Stainless steel pipe, 20...Check valve%21...
・Second water rising pipe, 22...second discharge port,
38...First switch, 39...First series circuit, 41...Single pole double throw switch, 4
2...Second series circuit, 44...First
parallel circuit, 46...first water heater, 47.
...Second switch, 48...River/Second water heater.

Claims (1)

[Claims] a first container, a first main heating device provided in the first container, an auxiliary heating device provided in the first container, one end communicating with the bottom of the first container, and the other end communicating with the bottom of the first container; a second container, one end of which is connected to the bottom of the second container via a check valve, and the other end of which is connected to the bottom of the second container in the vicinity of the first discharge port; A flow path communicating with a second discharge port provided in the flow path, a second main heating device that heats a part of the flow path, and the electric water supply device are connected in series to form a first series circuit. A first switch, the auxiliary heating device, and the first series circuit are connected in series to form a second series circuit, and the auxiliary heating device and the first main heating device are connected by switching. a first water heater configured with a changeover switch connected in parallel to form a first parallel circuit; and a second water heater connected in series with the second main heating device, the first water heater A composite water heater consisting of a switch and a second switch whose opening and closing are reversely linked.