JPS5875660A - Automatic controller for gas boiler for bath - Google Patents

Abstract

PURPOSE:To enable to automatically heat a desired amount of water to a desired temperature, by a method wherein an ignition sequence circuit for igniting and extinguishing is controlled by a hot water amount signal generated by a water level detecting circuit and a hot water temperature signal fed from a heated-up condition detecting circuit. CONSTITUTION:A change-over switch 13 is operated on the modes of cut-off (a), additional heating (b), water supply (c), water level detection (d) and automatic operation (e). When the switch 13 is set into the automatic operation mode, a water supplying valve 3 is opened through the water level detecting circuit 14, and when the level of a sensor 2 is reached, the valve 3 is closed, a power source voltage is simultaneously fed to the ignition sequence circuit 11 through the heated-up condition detecting circuit 16, and a main burner 7 starts combustion. When an agitator 17 is operated and hot water temperature reaches a value set by a hot water temperature setting volume control 18, all operations are stopped and the heated-up condition is informed of by an informing buzzer 15. When the water level is lowered during the automatic operation, all the operations are stopped through the circuit 14, and the abnormality is informed of by the buzzer 15.

Description

[Detailed Description of the Invention] The present invention relates to a gas bath kettle, and aims to improve the ease of use of the gas bath kettle by setting the amount and temperature of hot water, causing automatic operation, and boiling the water to the desired amount and temperature. purpose.

In a conventional gas bath kettle, the water supply is filled into the bathtub, the water supply is stopped when the appropriate amount of water is reached, and then the operation switch is turned manually to boil the water, and when the water reaches the appropriate temperature, It was necessary to turn off the operation switch to stop combustion. In other words, at the start of water supply, at the end of ignition,
It was inconvenient to do this in the bathroom at each point in time when extinguishing a fire, and to check the amount of water or water temperature several times to make sure it was the right temperature.

The present invention eliminates the drawbacks of the conventional example described above, and will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing the overall configuration of an automatic control device for a gas bath kettle according to an embodiment of the present invention, and FIG. 2 is a diagram showing the configuration of the automatic control circuit.

In FIG. 1, reference numeral 1 denotes a controller, which includes a hot water temperature setting volume switch, an operation mode changeover switch, and a notification speaker. First, the water level is set by the sensor 2 that detects the water amount (water level) and water temperature, and the water temperature is set by the controller 1. When automatic operation is started by the controller 1, a signal is sent to the water supply pulp 3 to start the water supply. Start. When the water level reaches the set water level, the water supply pulp 3 is closed and the water supply is stopped.
At the same time, the ignition operation starts. For ignition, the closed pulp 4 is first opened, and the pilot burner 6 is ignited.

8 is a heat exchanger, which is heated by the main barf and boils the bath. Further, the stirring device 9 is activated at the same time as the ignition, thereby eliminating unevenness in the temperature of the water in the bathtub. When it detects that the water temperature has reached the set temperature based on the signal from sensor 2, it stops all operations and sounds the alarm speaker to alert you that the water has heated up.

Next, the configuration and operation of an automatic control circuit according to an embodiment of the present invention will be explained with reference to FIG. 1o is a DC power supply, 11
is the ignition sequence circuit. 12 is an automatic control circuit for the gas bath pot. 13 is the operation mode selector switch, which has the following modes: off, reheating, water supply, water level detection, and automatic operation. First, when the selector switch 13 is in the off state, no power supply voltage is transmitted and all operations are stopped. next,
When the changeover switch 13 is set to the reheating mode, the power supply voltage is directly applied to the ignition sequence circuit 11, and the main burner 7 burns. When the changeover switch 13 is set to the water supply mode, the water supply pulp 3 is kept open via the water level detection circuit 14. In this case, the sensor 2 remains open regardless of its condition. When the changeover switch 13 is set to water level detection mode,
A water supply pulp 3 is opened via a water level detection circuit 14, and when the water level set by a sensor 2 is reached, the water supply pulp 3 is closed, and at the same time as water supply is stopped, a notification buzzer 15 notifies that the set water amount has been reached. When the changeover switch 13 is set to automatic operation mode, the water supply pulp 3 is opened via the water level detection circuit 14, and when the water level set by the sensor 2 is reached, the water supply pulp 3 is closed, and at the same time as the water supply is stopped, the boiling detection circuit 16 A power supply voltage is applied to the ignition sequence circuit 11 via the ignition sequence circuit 11, and the main burner 7 starts combustion. At the same time, a signal is given to the stirring device 17 to start stirring. When the water temperature reaches the value set by the water temperature setting volume 18, all operations are stopped and a notification buzzer 16 is used to notify that the water has heated up. Furthermore, if the water level decreases during automatic operation, all operations are stopped via the water level detection circuit in response to a signal from the sensor 2, and the alarm buzzer 15 notifies that there is an abnormality. In addition, after setting the changeover switch 13 to water supply mode and setting the water level to the set level,
When the changeover switch 13 is set to automatic operation, the water supply operation is not performed, but the sequence starts with ignition and stirring operations, and ends when the water temperature reaches the set temperature. If the water supply pulp is not installed here, selector switch 1
Set 3 to full water detection mode, supply water, and turn on notification buzzer 1.
If you stop the water supply when you know that the water level has reached the set water level by step 6, and then switch to automatic operation, you can boil the water to the set water temperature.

If you haven't set up the stirring device yet, you can learn at what temperature the temperature at sensor 3 should be to reach the appropriate temperature by stirring, and then you can automatically control the boiling temperature in the same way as when using the stirring device. It is possible to

As explained above, the present invention can automatically boil water to the desired amount and temperature simply by setting the desired amount and temperature, and can also perform additional heating, water supply, and water amount detection separately. In addition, all operations can be stopped when the water level decreases to prevent dry heating, which significantly improves the usability and safety of the electronically controlled gas bath pot.

[Brief explanation of drawings]

FIG. 1 is an overall configuration diagram of an automatic control device for an Ω gas bath kettle according to an embodiment of the present invention, and FIG. 2 is a block diagram of the same automatic control device.

Claims (1)

[Scope of Claims] (1) An ignition sequence circuit for igniting and extinguishing the bath kettle is provided, and a water level detection circuit and boiling detection circuit are provided to control the ignition sequence circuit based on signals from a sensor that detects the amount and temperature of water. Automatic control device for gas bath kettle with circuit. (2) The automatic control device for a gas bath boiler according to claim 1, which is capable of adding a complete mechanism for stopping water supply or hot water supply when a set amount of hot water is reached. (3) The gas bath boiler according to claim 1, which has a device that stops the operation of the bath boiler and notifies the user when the bath reaches a set amount of hot water and reaches a preset water temperature, or when some abnormality occurs. Automatically controlled loading. (4) 2/'- Gas bathtub according to claim 1, in which a device for driving a bubble generator or the like that stirs the hot water in the bathtub can be added to prevent uneven water temperature detection. Automatic control device. (6) The automatic control device for a gas bath boiler according to claim 1, which also has hot water amount detection, hot water temperature detection, and reheating functions in addition to automatic operation.