JPH01123947A - Hot water supply device - Google Patents

Abstract

PURPOSE:To prevent reboiling during suspension by providing a timer which is dapted to start action after having received a stop hot-water supply signal from a remote control device and output a close signal to an electric open/close means after specified time. CONSTITUTION:When a switch 7 is turned OFF in order to stop the supply of hot water, this signal forces a hot-water supply device 1 to stop combustion immediately and put the device into stop status. An indicator 8 puts out light, thereby indicating the stop of combustion. On the other hand, an OFF delay timer 10 receives a signal to stop the supply of hot water from a switch 7, starts action, and outputs a close signal to a motor-driven valve 5 after a specified time. Therefore, the motor-driven valve 5 turns into a closed status after the lapse of a specified time since the hot-water supply device 1 comes to a halt. Having received a closed signal from the OFF delay timer 10, a second indicator 9 puts out light, then indicates that the motor-driven valve 5 is under closed state. During the suspension of hot-water supply, hot water is supplied by the OFF delay timer 10 as described above. In other words, under the condition where water is flowing into the hot-water supply device 1, the hot-water supply device 1 stops the operation, thereby eliminating the reboiling observed in the prior art devices, that is, the rise in the temperature of hot water.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a water heater, and more particularly to a water heater comprising a water heater and an opening/closing means for supplying and stopping hot water from the water heater.

BACKGROUND OF THE INVENTION Conventional hot water supply apparatuses that supply hot water have conventionally had the configuration shown in FIG. In other words, 1 is a 2-hage type gas water heater that serves as a water heater and supplies hot water at a nearly constant temperature.

Reference numeral 2 is a click-and-turn means for supplying and stopping the hot water supplied from the instantaneous gas water heater 1 through the piping 3, and the user manually controls the hot water supply and stop by opening and closing the click-on. do. Reference numeral 4 denotes a remote controller which gives a command to stop operation of the water heater 1 and sets the temperature of hot water supplied from the water heater 1. As the opening/closing means, an electric valve may be used in addition to the clicker shown in FIG. 2. When using an electric valve as an opening/closing means, a second remote controller for commanding opening/closing of the electric valve is used in addition to the remote controller 4 shown in FIG. 2.

Here, the instantaneous gas water heater 1 will be explained in more detail below. This type of water heater detects the flow of water to start and stop combustion, but especially when stopped, it detects that the amount of water has reached the amount of extinguishing water and stops combustion. When the water heater is stopped, the temperature of the hot water rises due to a delay in detection by the water amount detection means that detects the amount of water, the heat capacity of the heat exchanger in the water heater, etc., which is called after-boiling. This rise in the temperature of the water, or post-boiling, depends on the speed at which the water volume stops, and the temperature rises rapidly.
, - becomes larger when the opening/closing means is closed. This after-boiling will appear as a large rise in water temperature the next time the opening/closing means is opened, making it inconvenient to use and posing a risk of burns.

Problems to be Solved by the Invention As mentioned above, in conventional water heaters, there is a rise in water temperature when hot water supply is stopped, that is, after-boiling. This may cause discomfort, and in some cases, there is a risk of burns if you are not aware of the existence of after-boiling.

The present invention solves the above-mentioned problems by eliminating post-boiling, that is, a rise in water temperature when the water is stopped, so that users can use the water with peace of mind. The purpose is to obtain a safe water heater.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a water heater, an electric opening/closing means that performs opening/closing operations based on an electric signal as a switching means, etc., and a switch for starting and stopping hot water supply. a remote controller comprising an input means for inputting into the apparatus and outputting a hot water supply start signal and a hot water supply stop signal from the input means; and the electric opening/closing means which starts operating upon receiving the hot water supply stop signal from the remote controller and after a predetermined period of time. It is equipped with a configuration that outputs a close signal.

Operation With the above configuration, when the user inputs a hot water supply stop signal using the input means of the remote controller to stop hot water supply, the water heater immediately stops combustion upon receiving the hot water supply stop signal from the input means. Further, the timer starts operating upon receiving the hot water supply stop signal, and outputs a close signal after a predetermined time. The electric opening/closing means operates upon receiving this closing signal and enters the closed state. In other words, the timer delays the closing operation of the electric opening/closing means, causing the water heater to stop combustion while water is flowing, and prevents the after-boiling that occurs when conventional water heaters stop. .

EXAMPLE An example of the present invention will be described below with reference to FIG. The same reference numerals as in FIG. 2 indicate the same parts. 5 is.

To the electric opening/closing means 5 which performs opening/closing operations based on electrical signals.
2 is an electric valve. Reference numeral 6 denotes a remote control, which is operated by the user, and includes a switch 7 as an input means whose on/off corresponds to the start/stop of hot water supply, and a display 8 as a notification means that responds to the on/off of the switch 7 and notifies the outside of the state of the switch. , a second indicator 9 is provided as a second notification means for notifying the state of the electric valve 5 to the outside. A timer 1o is an off-delay timer that starts operating upon receiving an off signal from the switch 7 of the remote controller 6, that is, a hot water supply stop signal, and outputs a closing signal to the electric valve 5 and the second display 9 after a predetermined time. The off-delay timer 10 delays only the hot water supply stop signal from the switch 7, and immediately outputs an open signal to the electric valve 5 and the second display 9 without delay when the hot water supply start signal is input from the switch 7. The water heater 1 is configured to receive hot water supply start and stop signals from a switch 7.

When the user turns on the switch 7 to start hot water supply, the pumping machine 1 immediately enters the operating state according to the on signal of the switch 7, that is, the hot water supply start signal, while the off delay timer 1o starts operating immediately after receiving the hot water supply start signal. Since an open signal is output to 6, the electric valve 5 opens and starts hot water supply. The indicator 8 lights up in response to the hot water supply start signal from the switch 7, and the second indicator 9 lights up in response to the open signal from the timer 10.
Each user is informed that the water heater 1 is in operation and that the electric valve 9 is open.

When the user turns off the switch 7 to stop hot water supply, the water heater 1 immediately stops combustion and is in a stopped state in response to the off signal of the switch 7, that is, the hot water supply stop signal, and the display 8
The light goes out to notify the stop.

On the other hand, the off-delay timer 1o starts operating upon receiving the hot water supply stop signal from the switch 7, and outputs a close signal to the electric valve 5 after a predetermined period of time. Therefore, the electric valve 5 is closed a predetermined time after the water heater 1 stops. The second indicator 9 turns off in response to the closing signal from the off-delay timer 1o to notify that the electric valve 5 is in the closed state.

When the hot water supply is stopped, the hot water is being supplied to the off delay timer 1o as described above, that is, water is flowing to the water heater 1, and the water heater 1 stops operating. There is no post-boiling, that is, a rise in water temperature when the water is stopped.

Effects of the Invention As described above, according to the water heater of the present invention, there is no after-boiling, and a water heater that can be used safely by the user with peace of mind can be provided.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of an embodiment of the present invention, and FIG. 2 is a schematic diagram of a conventional water heater. 1...Water heater, 5...Electric valve, 6...
...Remote control, OK...Switch, 10...
...off delay timer.

Claims (1)

[Claims] A water heater, an electric opening/closing means for opening and closing hot water supplied from the water heater using an electric signal, and an input means for inputting start and stop of hot water supply into the apparatus, and a hot water supply start signal and a hot water supply from the input means. A water heater comprising: a remote control that outputs a stop signal; and a timer that starts operation upon receiving a hot water supply stop signal from the remote controller and outputs a close signal to the electric opening/closing means after a predetermined time.