JPH10294974A - Controller for hot water supplier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change a hot water supply temperature from high to low, to prevent burns and to improve safety and handleability, by providing an IC for outputting signals for immediately performing change to the low temperature when hot water supply setting is high temperature to an instrument main body control part when a radio remote controller is detached from a hook and a child lock state is attained. SOLUTION: When a judgment part 10 judges that the radio remote controller 1 is detached from the hook, the IC 12 receives the signals and attains the child lock state. Then, when the temperature setting of an instrument 3 is the high temperature setting (75 deg.C, for instance), the IC 13 outputs the signals of temperature change to the low temperature (42 deg.C, for instance) programmed beforehand to a main body control part 4, and the main body control part 4 which receives them controls the instrument 3 so as to change the hot water supply temperature to the programmed low temperature. Also, at the time of releasing a child lock by the decided special operation of the operation part 5 of the radio remote controller, the high temperature setting from the operation part 5 thereafter is not accepted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a water heater provided with a wireless remote controller as a remote controller for communicating with an appliance body by radio waves.

[0002]

2. Description of the Related Art Conventionally, when a wireless remote controller is detached from a hook and placed in a child lock state, it is impossible to change the temperature setting even when a high temperature is set.

When the child lock is released by a special operation of the operation unit, all remote control operations become possible.
High-temperature hot water could be delivered from the remote control removed from the hook.

[0004]

However, in the above configuration, the remote controller is detached from the hook in the high temperature setting state, and when in the child lock state, the temperature setting cannot be changed and the remote control is used in the high temperature setting state. As a result, safety and usability were not sufficient.

Also, when the child lock is released by a special operation, the remote control can be used with the hook removed from the hook. At that time, it is possible to set a high temperature. Therefore, there is a problem that safety cannot be secured when the remote control is carried. Was.

[0006]

In order to solve the above-mentioned problems, a control device for a water heater according to the present invention comprises: a battery unit for supplying battery power; an operation unit for inputting an instruction signal to the appliance; A notifying unit for notifying the setting state, operating state and operation contents of the appliance, a radio signal unit for converting and transmitting an electric signal to a radio signal and converting a received radio signal to an electric signal, and a hook for hanging on a wall; A determination unit for determining whether or not the hook is installed on the hook; and an IC for receiving an input operation of the operation unit as a signal, and setting a child lock state when the determination unit determines that the hook is not installed on the hook.
With a wireless remote control having a, the same wireless transmitting and receiving unit as the wireless transmitting and receiving unit, and outputs a signal from the wireless transmitting and receiving unit to the appliance main body control unit and outputs a signal from the appliance main body controlling unit to the wireless transmitting and receiving unit, A communication unit having an IC having a mode for outputting, to the appliance main body control unit, a signal for immediately changing to a low temperature if the hot water supply setting temperature is high when the wireless remote control enters the child lock state; Things.

According to the present invention, when the hot water supply set temperature is high when the wireless remote control enters the child lock state, it can be immediately changed to a low temperature.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 provides a power supply unit for supplying battery power, an operation unit for inputting an instruction signal to the appliance, and a notification of a setting state, an operating state, and an operation content of the appliance. The notification unit that performs, converts the electric signal into a radio signal and transmits it,
A wireless transmitting / receiving unit that converts the received radio wave signal, a hook for hanging on a wall, a determining unit for determining whether or not the hook is installed on the hook, and receiving an input operation of the operating unit as a signal, the determining unit A wireless remote control having an IC that does not accept a signal of an input operation (hereinafter referred to as a child lock) when it is determined that it is not installed on a hook;
The same wireless transmitting and receiving unit as the wireless transmitting and receiving unit, and outputs a signal from the wireless transmitting and receiving unit to the appliance main unit controlling unit, outputs a signal from the appliance main unit controlling unit to the wireless transmitting and receiving unit, and removes the wireless remote controller from the hook. And a communication unit having an IC having a mode for outputting a signal to immediately change to a low temperature to the appliance main body control unit when the hot water supply setting is high when the child lock state is set. is there. Thus, when the wireless remote control enters the child lock state, if the hot water supply set temperature is high, it can be immediately changed to a low temperature.

According to a second aspect of the present invention, when the wireless remote control is in the child lock state and the child lock is released by a special operation of the operation unit while being released from the hook, upon receiving the release signal, The wireless remote controller has a function of restricting execution of a hot water supply temperature setting signal from the operation unit. Thus, when the child lock is released while the wireless remote controller is off the hook, the high temperature setting can be restricted.

Further, the invention according to claim 3 is provided with a function of notifying the execution of an input signal from the operation unit of the wireless remote controller by the notifying unit. As a result, it is possible to notify the wireless remote controller that the execution of the input signal has been restricted.

An embodiment of a water heater control device according to the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a configuration diagram of a water heater control device as Embodiment 1 of the present invention, and FIG. 2 is an internal circuit thereof.

In FIG. 1, a radio remote controller 1 and a communication unit 2 are provided. The communication unit 2 is attached to an appliance 3 and connected to a main body control unit 4 for controlling the operation of the appliance 4 in the appliance main body.

The radio remote controller 1 has an operation unit 5 for inputting an instruction signal to the appliance 3, a display unit 6 for displaying the set state, operation state and operation contents of the appliance, and can output signals as sound waves. The sound output unit 7 is provided. Further, a determination unit 10 for determining whether the wireless remote controller 1 is hooked on the hook 9 attached to the wall 8 is provided.

As shown in FIG. 2, the wireless remote controller 1 has an IC 11 for controlling the operation of the remote controller. And I
C <b> 11 controls the wireless transmission / reception unit 12, which is a converter between an electric signal and a radio signal, receives a signal from the operation unit 5, and outputs a signal to the display unit 6.

The communication unit 2 has an IC 13 for transmitting and receiving signals to and from the main body control unit 4 and a radio transmission / reception unit 14 (same as the one built in the radio remote controller 1), and the IC 13 controls the radio transmission / reception unit 14.

Next, the operation of the above configuration will be described. Judgment unit 1 that wireless remote control 1 has been removed from hook 9
If the determination is 0, the signal is received by the IC 12 and the child lock state is set. Then, at this time, if the temperature setting of the appliance 3 is a high temperature setting (for example, 75 ° C.), the IC 13 outputs a signal of a temperature change to a pre-programmed low temperature (for example, 42 ° C.) to the main body control unit 4, Upon receiving this, the main body control unit 4 controls the appliance 4 to change the hot water supply temperature to the programmed low temperature.

When the child lock is released by operating the operation unit 5 of the wireless remote controller 1 by a predetermined special operation (for example, pressing two keys simultaneously), the IC 12 receiving the signal transmits the operation unit 5 The high temperature setting from 5 will not be accepted.

Further, the IC 12 which has received the child lock release signal displays on the display unit 6 that the high temperature from the operation unit 5 is no longer accepted, or informs the user with the sound output unit 7 by means of a buzzer sound or voice synthesis. Or LED
Etc. may be used.

As described above, according to the present embodiment, when the wireless remote control is in the child lock state, the hot water supply temperature can be changed to a low temperature if the hot water temperature is set high. When it is released in a state where it cannot be mounted, the high temperature setting by the wireless remote controller can be prohibited, and the state can be notified to the user. Thereby, safety can be achieved in using the device when the wireless remote controller is off the hook.

[0021]

As is apparent from the above description, the following effects can be obtained by the water heater control device of the present invention.

According to the first aspect of the present invention, when the wireless remote controller is detached from the hook, the communication unit that has detected the child lock changes the hot water supply temperature from a high temperature setting to a low temperature to thereby control the child locked remote control. Can prevent burns when the temperature setting cannot be changed.

According to a second aspect of the present invention, when the child lock is released by a special operation, the high temperature setting of the remote controller removed from the hook is prohibited, so that the remote controller can be used by anyone other than a hot water supply user (person, object, etc.). It is possible to prevent burns at the time of high-temperature hot water discharge due to, for example, an operation when the operation is performed or an operation is performed at a place other than the hot water supply use place and the user cannot recognize the set temperature.

According to the third aspect of the present invention, the user can recognize that the reason why the high temperature cannot be set is not an abnormal operation of the appliance by displaying or notifying the state of the remote controller that the high temperature cannot be set.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a control device of a water heater according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing an internal circuit of the control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wireless remote control 2 Communication unit 5 Operation part 6 Display part 7 Sound output part 9 Hook 10 Judgment part 11,13 IC

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Takao Asada, Inventor 1006 Oaza Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (3)

[Claims] 1. A device main body having a communication unit, a wireless remote controller communicating with the communication unit, the wireless remote controller includes a power supply unit for supplying battery power, an operation unit for inputting an instruction signal to the device, and a device. A notifying unit for notifying the setting state, operating state and operation contents of the remote control, a remote control wireless transmitting and receiving unit for converting an electric signal into a radio signal and transmitting and converting the signal into a received radio signal, a hook for hanging on a wall, A determination unit for determining whether or not there is an input operation, and an IC that receives an input operation of the operation unit as a signal and does not receive a signal of the input operation when the determination unit determines that the input operation is not installed on the hook (hereinafter referred to as a child lock). A communication unit configured to communicate with the remote control wireless transmission / reception unit, and a signal transmitted from the unit wireless transmission / reception unit to the apparatus main body. Output to control unit outputs a signal from the instrument main body control unit to unit wireless transceiver,
When the wireless remote controller is removed from the hook and enters the child lock state, if the hot water supply setting is high, the control device of the water heater provided with an IC for outputting a signal for immediately changing to a low temperature to the appliance main body control unit. 2. When the wireless remote control is in the child lock state and the child lock is released by a special operation of the operation unit while being released from the hook, the release signal is received and simultaneously the high temperature from the operation unit of the wireless remote control is received. The control device for a water heater according to claim 1, wherein execution of the hot water temperature setting signal is restricted. 3. The control device for a water heater according to claim 1, wherein a notification unit notifies that execution of an input signal from the operation unit of the wireless remote controller has been restricted.