JPH11316565A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce power consumption by making essential display for operation, safety, etc., and eliminating unnecessary operations. SOLUTION: This display device is equipped with one or more control command switches (an automatic switch S1, an additional firing switch S2, an operation switch S3, a power-saving mode command switch S4, a hot-water switch S5, a call switch S6, an operation switch S7, an automatic switch S8, a temperature raising switch S9, a temperature lowering switch S10, an operation switch S11, an automatic switch S12, a temperature raising switch S13, and a temperature lowering switch S14), display elements (display units 134, 152, and 170), and a control means (a control part 102 and a control arithmetic part). Here, a normal display mode and a power-saving mode are set and then the display elements are controlled into an illuminating state to make a necessary display and in the power-saving mode, the display elements are released from operating and controlled into an extinction state to save the electric power.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device used for a remote controller installed in a bathroom, a kitchen or the like.

[0002]

2. Description of the Related Art A hot water supply / reheating unit is used for supplying water to a bathtub or a kitchen, reheating remaining water in a bathtub (that is, reheating) or pouring laundry (including reuse of hot water in a bathtub). Have been.
Normally, this type of hot water supply / reheating unit connects a single hot water supply / reheating unit to an appropriate location by piping, installs a remote control device in a bathroom, a kitchen, a laundry room, etc., and starts operation, hot water supply, and temperature control. Various operations such as setting can be performed. The remote control device includes a display device as a means for performing various displays such as a display according to an operation and a status display. In this type of display device, various display elements such as a fluorescent display tube, an LED, and a liquid crystal display are used. Depending on the liquid crystal display, etc.
There is a case where a light emitting unit is provided to make the display content stand out by illuminating the display with light from the back side.

[0003]

By the way, the display device has some display such as a set temperature and a time even when waiting for an operation input or during operation stop. However, when the display device is continuously operating, power consumption becomes a problem. For example, a fluorescent display tube used for a display device has high luminance, has high visibility even when fogging occurs due to steam, and is suitable for a display device installed in a bathroom or the like. However, since the fluorescent display tube performs the fluorescent display by controlling the thermoelectrons emitted from the cathode to the anode, it is necessary to constantly heat the cathode for emitting the thermoelectrons by heating, and the electric power for heating the cathode is required. Consumption cannot be ignored. There is also the generation of CO ₂ .

In order to suppress such power consumption, the display may be selectively stopped by the user.
Disregarding the display operation by ignoring the control operation of the control means renders the display device meaningless, and poses a problem in terms of important displays to be notified and safety.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a display device in which an indispensable display such as operation and safety is performed and unnecessary operation is eliminated to reduce power consumption.

[0006]

According to the present invention, there is provided a display device comprising:
Or a control command switch composed of two or more (automatic mode switch S1, reheating mode switch S2, operation switch S
3, power saving mode command switch S4, hot water supply switch S
5, call switch S6, operation switch S7, automatic mode switch S8, temperature increase switch S9, temperature decrease switch S10, operation switch S11, automatic mode switch S12, temperature increase switch S13, temperature decrease switch S
14), display elements (displays 134, 152, 170),
Control means (the control unit 102, the control calculation units 120 and 142,
160), the display device is set to a normal display mode and a power saving mode to control the display element to a lighting state to perform a required display. The power saving is realized by canceling the operation and controlling to the light-off state.

The display device according to the present invention comprises a control command switch (automatic mode switch S1, reheating mode switch S2, operation switch S) comprising one or more control commands.
3, power saving mode command switch S4, hot water supply switch S
5, call switch S6, operation switch S7, automatic mode switch S8, temperature increase switch S9, temperature decrease switch S10, operation switch S11, automatic mode switch S12, temperature increase switch S13, temperature decrease switch S
14) and display elements (displays 134, 152, 1) that are turned on by the display control output and display necessary characters and symbols.
70), various control outputs such as a display control output are generated by inputting the control command switch, and the display element is controlled to a lighting state so that the display element performs a necessary display. And control means for canceling the operation of the display element and controlling the display element to be turned off by shifting to the state. With this configuration,
Set display mode and power saving mode. In display mode,
Various control outputs such as a display control output are generated by inputting a control command switch, and the display element is controlled to a lighting state to make a necessary display on the display element. And
The operation of the display element is released by shifting to the power saving mode, and the display element is controlled to be turned off.

In the display device of the present invention, there is provided a power saving mode command switch (S4) which is provided separately from the control command switch and instructs execution of a power saving mode. A control unit (control unit 102) for canceling the operation of the display element based on an input and controlling the display element to be turned off is provided. With such a configuration, the setting of the power saving mode is set by the command switch, so that the display can be released and the display can be controlled to be turned off.

The display device of the present invention further includes a power saving mode display element (135) for displaying the power saving mode, and when the mode is shifted to the power saving mode, the power saving mode display element displays the power saving mode. Is displayed. With this configuration, it is notified that the mode has shifted to the power saving mode.

[0010] In the display device of the present invention, the control means may display a clock on the display element when the driving operation is stopped. With this configuration, it can be seen from the clock display that the operation is stopped.

In the display device according to the present invention, in the power saving mode, when the control command switch is operated, the control means keeps the display element operating for a predetermined time from the start of the operation. I do. With this configuration, a necessary operation command is accepted prior to the power saving mode. In this case, the display is performed for a predetermined time, thereby facilitating the user's convenience.

Further, in the display device according to the present invention, the control means may be configured to control the display element in a power saving mode until a necessary control operation is completed based on a control command issued based on an operation of the control command switch. Is maintained in an operating state. With this configuration,
A required operation command is received prior to the power saving mode, operation control based on the control command is performed prior to the power saving mode, and a display in that case is performed, thereby providing convenience to the user.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

FIG. 1 shows a hot water supply / reheating device as an embodiment of the display device of the present invention.

A remote controller 4 for bathroom, a remote controller 6 for kitchen, and a remote controller 8 for washing and pouring water are linked to the hot water supply / reheating unit 2 as display devices. The hot water supply / reheating unit 2 is installed outdoors such as an outer wall of a house, the bathroom remote controller 4 is installed in a bathroom, the kitchen remote controller 6 is installed in a kitchen, and the laundry pouring remote controller 8 is installed in a laundry room or the like.

The hot water supply / reheating unit 2 has a gas supply port 1
0, a water supply port 12, a hot water supply port 14, a washing pouring port 16, and bathtub connection ports 18 and 20 are provided. Fuel gas G is supplied to the gas supply port 10, and tap water W is supplied to the water supply port 12. Hot water HW on the water supply side obtained from the hot water supply port 14 is supplied to a kitchen, a bathroom, and the like. Hot water obtained at the washing pouring port 16 is supplied to the washing machine 22 through a pipe. Further, a circulation pipe 30 of a bathtub 28 is connected to the bathtub connection port 18 through a going pipe 24 and a return pipe 26 to the bathtub connection port 20, and a hot water supply path is provided between the hot water supply / reheating unit 2 and the bathtub 28. , A reheating path is formed.

The hot water supply / reheating unit 2 is provided with an independent hot water supply side combustion chamber 32 and a separate reheating combustion side combustion chamber 33. The hot water supply side combustion chamber 32 has a heat exchanger 34, and the reheating combustion side combustion chamber 33 has heat. Exchangers 36 are provided respectively. Two burners 38 and 40 are installed on the heat exchanger 34 side, and a burner 42 is installed on the heat exchanger 36 side, and the fuel gas G is supplied through a pipe 44. On the way of the pipe 44, a fuel valve 46 for supplying and shutting off the combustion gas G to the burners 38 and 40, a proportional valve 48 for continuously controlling the supply of fuel, and a switching valve 50 for switching the fuel gas amount. , 51 are installed, and a reheating source valve 52 for supplying and shutting off fuel is installed on the burner 42 side. An igniter 53 for igniting the fuel gas G by discharge and a flame rod 55 for detecting combustion of the burner 38 are provided near the crater of the burner 38, and an igniter for igniting the fuel gas G by discharge near the crater of the burner 42. 57, a frame rod 59 for detecting combustion of the burner 42 is provided. In the combustion chamber 32, a fan motor 54 for supplying combustion air to the burners 38 and 40 and a similar fan motor 56 for the burner 42 are individually provided.
8, 60 are provided.

The clean water W supplied to the water supply port 12 is supplied to the pipe 6
After being supplied to the heat exchanger 34 through the heater 1 and heated, it is supplied to the outside from the hot water supply port 14 through the conduit 63. The amount of water supplied to the heat exchanger 34 is electrically detected through a water supply sensor 62. The temperature on the inlet side of the heat exchanger 34 is detected by a feedwater temperature sensor 64, and the temperature on the outlet side of the heat exchanger 36 is detected by a tapping temperature sensor 66. Branch pipes 68 and 70 are provided in the middle of the pipe lines 61 and 63, and open / close valves 72 and 74 are provided.
The hopper 76 is connected via the. This hopper 76
And the heat exchanger 36 are connected through a pipe 78, and the heat exchanger 36 and the pump 80 are connected through a pipe 82. The pipe 78 is provided with a water quantity sensor 84 for detecting both water flow to the bathtub and the like, and a switching valve 86.
Is connected to a pipe 88, and the pipe 88 is connected to a switching valve 90.
A pipe 92 is connected between the switching valve 90 and the washing pouring port 16, and a pipe 94 is connected between the switching valve 90 and the bathtub connection port 18. Pump 80 and bathtub connection 20
Is connected to a line 96, and a water flow switch 98 for detecting flowing water is connected to the line 96.
A temperature sensor 100 is provided as means for detecting the temperature of the hot and cold water passing through 6.

The hot water supply / reheating unit 2 is provided with a control unit 102 as a means for controlling combustion, water supply, and the like necessary for hot water supply, reheating, washing and pouring, and the like. Bathroom remote control device 4 through signal line 104,
The kitchen remote controller 6 and the laundry pouring remote controller 8 are linked.

FIGS. 2 and 3 show specific examples of the control unit 102, the bathroom remote controller 4, the kitchen remote controller 6, and the laundry pouring remote controller 8.

The control unit 102 includes a processing unit such as a CPU, storage elements such as a RAM and a ROM, an input / output interface, and an A / D converter.
06, the input circuit 108, the drive circuit 11
0, a transmission / reception circuit 112, a power supply circuit 114, and the like. A detection signal is input from the sensor 116 to the input circuit 108. This sensor 116 is connected to the frame rod 5
5, 59, a water supply amount sensor 62, a water supply temperature sensor 64, a tap water temperature sensor 66, a water amount sensor 84, a flowing water switch 98, a temperature sensor 100, and various other sensors. Further, an actuator 118 is connected to the drive circuit 110, and the actuator 118 is connected to the drive circuit 11
Driven by a drive output from 0. Here, the actuator 118 is a drive unit in the fuel source valve 46, the proportional valve 48, the switching valves 50 and 51, the reheating source valve 52, the on-off valves 72 and 74, the switching valves 86 and 90, and the like. Also, the driving circuit 1
The drive output from 10 is applied to fan motors 54, 56, pump 80, and the like.

The transmission / reception circuit 112 is a means for transmitting and receiving signals to and from the bathroom remote controller 4, the kitchen remote controller 6, and the laundry pouring remote controller 8, and transmits a signal transmission medium such as a wire, radio wave, light, or ultrasonic wave. use. In this embodiment, signals are transmitted and received by wire, and the power supply circuit 1
Reference numeral 14 supplies power to the control unit 102 and also supplies power to the bathroom remote controller 4, the kitchen remote controller 6, and the laundry pouring remote controller 8 through the signal line 104. That is, a DC output from the power supply circuit 114 and a digital signal as control information from the control operation unit 106 are superimposed and transmitted on the signal line 104, and the bathroom remote controller 4, the kitchen remote controller 6, and the laundry pouring remote controller are provided. A digital signal, which is control information from the control unit 8, is transmitted. Therefore, the transmission / reception circuit 112
Transmits and receives necessary control information and the like separately from the DC voltage.

The bathroom remote controller 4 constitutes a main remote controller for the other kitchen remote controller 6 and the laundry pouring remote controller 8. This bathroom remote controller 4
A control operation unit 120 including a microcomputer is provided. The control operation unit 120 includes a transmission / reception circuit 122, a switch 126 via an input circuit 124, and an audio output circuit 1.
28, and a display 134 is linked via a display output circuit 132.

The switch 126 comprises one or more control switches, a power saving mode command switch, and the like. Specifically, as shown in FIG. 3, an automatic mode switch S1, a reheating mode switch S2, Operation switch S3,
A power saving mode command switch S4, a hot water supply switch S5, a call switch S6, and the like are provided. The automatic mode switch S1 is a switch for instructing automatic start and stop of hot water supply and additional heating. When the automatic mode switch S1 is operated, it instructs an operation of filling the bathtub 2 to the set water level, reheating to the set temperature, and performing reheating for a fixed time. When the reheating mode switch S2 is operated, the temperature of the hot water in the bathtub 2 is reheated to the set temperature.

The reheating mode switch S2 is a switch for instructing the start and stop of the reheating mode, the operation switch S3 is a switch for instructing the start and stop of the hot water supply and reheating, and the power saving mode command switch S4 is Display 13
A mode setting switch for stopping all displays 4, 152, and 170 and instructing the start or stop of the power saving mode.

The hot water supply switch S5 is an operation switch for supplying a predetermined amount of hot water to the bathtub 2. For example, the hot water supply operation is performed when running water generated by opening a faucet is detected. The call switch S6 is provided for the bather to send a signal to the outside of the bathroom, and is a switch for issuing a ringing sound from the bathroom through the kitchen remote control device 6 and the laundry pouring remote control device 8 or instructing the stop thereof.

The utterance unit 130 is means for outputting input information and control status by voice, and outputs voice information from the voice output circuit 128 as voice according to the control output of the control operation unit 120.

The display 134 is constituted by a display element such as a fluorescent display tube having a cathode 136, and performs a character display with a display drive output output from the display output circuit 132 by a display control output of the control operation unit 120. . A power supply circuit 140 is connected to the display 134 via a cutoff circuit 138, and the cutoff circuit 138 is configured by a switch, and a cutoff control output from the control operation unit 120 outputs the power from the power supply circuit 140 to the display 134. Supply or cut off power.

In addition to the display 134, a power saving mode display 135 and a priority mode display 137, which are composed of light emitting elements such as LEDs, are provided (FIG. 3). When a power saving mode command is input from the power saving mode command switch S4, the power saving mode display 135 lights up and displays the power saving mode.

The kitchen remote controller 6 has a control operation unit 142 composed of a microcomputer. The control operation unit 142 has a transmission / reception circuit 144, a switch 148 via an input circuit 146, and a display via a display output circuit 150. The device 152 is linked. The switch 148 includes one or two or more control switches, and specifically includes an operation switch S7, an automatic mode switch S8, a temperature increase switch S9, and a temperature decrease switch S10, as shown in FIG. ing. The operation switch S7 is a switch for instructing the start and stop of hot water supply / reheating, and the automatic mode switch S8 is a switch for instructing automatic start and stop of hot water supply and reheating, a temperature increase switch S9 and a temperature decrease switch S10. Is a switch for instructing a rise or fall of the set temperature.

The indicator 152 is a lamp 1 for illuminating the back surface.
And a display output circuit 150 based on a display control output of the control operation unit 142.
The character display is performed by the display drive output output from. The power supply circuit 158 is connected to the display 152 via a cutoff circuit 156, and the cutoff circuit 156 is configured by a switch. The cutoff control output from the control operation unit 142 causes the power supply circuit 158 for the display 152 to output from the power supply circuit 158. Supply or cut off power.

The laundry pouring remote controller 8 includes a control operation unit 160 composed of a microcomputer. The control operation unit 160 includes a transmission / reception circuit 162 and an input circuit 164.
And a display 170 via a display output circuit 168. The switch 166 includes one or two or more control switches, and specifically includes, as shown in FIG. 3, an operation switch S11, an automatic mode switch S12, a temperature increase switch S13, and a temperature decrease switch S14. The operation switch S11 is a switch for instructing the start and stop of the operation of washing and pouring, the automatic mode switch S12 is a switch for instructing the automatic start and stop of washing and pouring, and the temperature increasing switch S13 and the temperature decreasing switch S14 are set. A switch for instructing a rise or fall in temperature.

The display 170 is constituted by a display element such as an LCD display or an LED, and performs a character display with a display drive output outputted from the display output circuit 168 by a display control output of the control operation section 160. The power supply circuit 174 is connected to the display 170 via a cutoff circuit 172, and the cutoff circuit 172 is configured by a switch.
The power supply from the power supply circuit 174 to the display 170 or the interruption thereof is performed by the interruption control output from the power supply.

On the front panel of the bathroom remote controller 4, the kitchen remote controller 6 and the laundry pouring remote controller 8, a display is provided on the upper side and switches 126 and 14 are provided on the lower side.
8, 166 are installed. The bathroom remote controller 8
An open / close panel 182 that opens and closes in front and rear is provided on the front panel 180, and a plurality of control switches (not shown) are provided on an inner panel surface of the open / close panel 182.
On the inner panel surface of the opening / closing panel 182, there are various setting switches such as a temperature change switch, a water bath (water level) change switch, a clock / time adjustment switch, an operation reservation switch, and a priority changeover switch for changing the operation priority. Provided. For example, when priority is given to the hot water supply temperature, the priority mode indicator 137 is turned on.

Next, FIG. 4 shows a specific circuit configuration example of the display 134, the cutoff circuit 138, and the power supply circuit 140 in the bathroom remote controller 4.

The signal line 1 is connected to the DC input terminals 181 and 183.
A constant DC voltage Vi is applied from the power supply circuit 114 of the control unit 102 through the signal line 104. The DC input terminal 183 is connected to a reference potential, that is, is grounded. This power supply circuit 140 includes:
A transformer 184 is installed as a voltage transformer.
It has a primary coil N1 and secondary coils N2, N3, N4. A transistor 186 is connected in series to the primary coil N1 as a switching element.
The DC voltage Vi is interrupted by the continuous switching of 86, and the interrupted pulse voltage is applied to the coil N1.

On the base input side of the transistor 186,
An oscillation circuit 188 is provided as means for switching the transistor 186. This oscillation circuit 188
Uses the DC voltage Vi as a starting voltage (driving voltage), includes the secondary coil N2 of the transformer 184 in a feedback circuit, and includes a transistor 190, a photocoupler 192, and a diode 19
4. Capacitors 196, 198 and resistors 200, 20
2, 204. The photocoupler 192 is a means for shutting off the output side, and includes a light emitting diode 206 and a light receiving transistor 208.
Reference numeral 06 emits light with a light emission current corresponding to the load current, and the light emission amount is proportional to the load current. The light receiving transistor 208 receives light emitted from the light emitting diode 206 and receives a light receiving current corresponding to the amount of emitted light. This light receiving current becomes a base feedback input of the transistor 190, and the switching output of the transistor 190, that is, the conduction period is controlled, and the conduction period in the switching of the transistor 190 is controlled. That is, the width of the conduction period in the switching of the transistor 186 is controlled so as to correspond to the increase or decrease in the load current and compensate for the increase or decrease.

According to the pulse current applied to the primary coil N1, an AC output is obtained from the secondary coil N2, and its voltage value is proportional to the number of turns between the primary coil N1 and the secondary coil N2. Then, the pressure is increased. The secondary coil N3 is provided with a half-wave rectifier circuit 214 composed of diodes 210 and 212, the rectified output of which is smoothed by capacitors 216 and 218,
A positive output voltage V _DD is obtained on the cathode side of 10, ie, the positive power supply line 220 side, and a negative output voltage is obtained on the anode side of the diode 212, ie, the negative power supply line 222. The output taps of the secondary coils N3 and N4 are commonly connected, and the common line 224 is set to a negative potential lower than the reference potential.

The power supply line 220 and the common line 224 are provided with a detection circuit 226 for detecting a change in the output voltage Vo. That is, the power supply line 220 and the common line 2
24, a Zener diode 230 is connected via a resistor 228, and the Zener diode 230 generates a reference voltage Vf. This reference voltage Vf is applied to the emitter side of the transistor 232 which is a comparison means,
The output voltage Vo is connected to the resistor 2
A voltage Vn obtained by dividing the voltage at a voltage dividing ratio of 34, 236 is applied, and a current is drawn into the transistor 232 based on a comparison between the voltage Vn and the reference voltage Vf. A resistor 238 is connected between the power supply line 220 and the collector of the transistor 232.
The light emitting diode 206 of the photocoupler 192 is connected in series via the. That is, the current drawn by the transistor 232 based on the comparison between the voltage Vn and the reference voltage Vf is the light emitting current of the light emitting diode 206.

The fluorescent display tube 2 is used as the display 134.
40 are installed. The fluorescent display tube 240 in this embodiment has a three-digit display for simplicity of explanation and is shown with three anodes. However, actually, the fluorescent display tube 240 has three or more display digits, and each digit is displayed in eight. An anode is installed. Each of the anodes and the grid has a switch SA1, SA2,..., SG1, SG2,.
, The power supply voltage V _DD is selectively applied. Each of the switches SA1, SA2,..., SG1, SG2,. That is, the switches SA1, SA2,.
, SG2,... Are individually connected between the power supply lines 220, 222 via the resistor R. Then, an AC output is applied from a secondary coil N4 to a cathode 136 integrally formed with a filament for generating thermoelectrons by heat generation via a cutoff circuit 138. The cutoff circuit 138 is configured by relay contacts 241 and 242 that are opened and closed by the switching output of the arithmetic control frequency divider 120.

According to such a configuration, the control operation unit 12
.. Or the switches SA1, SA2... Or the switches SA1, SA2... Through the display output circuit 132 to selectively open and close the anode voltage and grid to the fluorescent display tube 240. As a result of the voltage being selectively applied, a necessary display is performed.
For example, when the switches SA1 and AG1 are closed at the same time, a positive voltage is applied to the anode and the grid selected by the switches SA1 and AG1, and the anode corresponding to the grid selected by the switch SG1 emits light to perform display.

Then, the relay contact 24 of the shutoff circuit 138
When the relays 1 and 242 are closed, the cathode is energized, and when the relay contacts 240 and 242 are open, the energization is released and the display is released. This display control is performed according to the opening and closing of the power saving mode command switch S4.

Although FIG. 4 shows a specific circuit configuration example of the display 134, the shutoff circuit 138, and the power supply circuit 140 in the bathroom remote control device 4, the display 152 and the shutoff circuit 156 of the kitchen remote control device 6, The display 170 and the shutoff circuit 172 of the pouring remote controller 8 can be similarly configured.

Next, a display operation accompanying hot water supply and additional heating will be described.

When the operation switch S3 is operated to enter the operation standby state, the hot water supply set temperature, the operation state, and other control information are displayed on the display 134 of the bathroom remote controller 4, and the operation switch S3 is operated. When the operation is stopped, the time and the like are displayed on the display 134 of the bathroom remote controller 4. In this state, the power saving mode command switch S
4 is operated, the input is transmitted from the transmission / reception circuit 122 to the control unit 102, and an instruction to turn off the display is output to the bathroom remote controller 4, the kitchen remote controller 6, and the laundry pouring remote controller 8, and the display 134, The display of 152 and 170 shifts to an extinguished state.

By the way, when the display is shifted to the light-off state (at the time of the power saving mode), when the control input, for example, the automatic switch S1 is operated, the bathroom remote controller 4 which detects the switch input is turned on. The display stop is returned to the display state for a predetermined time so that the contents of the switch operation can be visually recognized, and the display is restarted.

A hot water supply switch S5 and a reheating switch S
When the switch 2 is operated, the control command is transmitted together with the detection of the switch input, and the switch for changing the set data such as the set temperature is set for a predetermined time in order to prevent the hot water supply temperature from being erroneously changed to a high temperature. When a new switch input is detected, the setting change input is accepted and the display is newly maintained for a predetermined time. As a result, erroneous change of the setting data due to the switch operation is prevented.

Further, all the display devices that have received the operation start signals for hot water supply, reheating, etc. issued by the control unit 102, that is, the display during the control operation of the bathroom remote control device 4, the kitchen remote control device 6, and the bathroom remote control device 8 To notify the hot water temperature information and the like.

Also, flag information of control operations such as hot water supply and additional heating transmitted from the control unit 104 to the operation start signal, a flame confirmation signal detected by a frame rod or the like, and water flow information of a water amount sensor, a flow switch, etc. May be used.

When the set temperature is changed while the display is stopped, it is necessary to notify the user of the change for safety. For example, in the kitchen remote controller 6, the set temperature is set to 5
When the temperature is changed to a high temperature of 5 ° C. or more, a sound is notified by a bathroom remote controller or the like. Alternatively, a display may be output for a predetermined time together with the voice to notify the user. Further, another remote control device may be provided with an audio output function, or a display may be turned on.

Next, a description will be given with reference to an operation flowchart shown in FIG.

In step S1, it is determined whether or not the power saving mode command switch S4 has been operated and a display stop command for display hot water supply and additional heating has been issued. Further, it is determined whether or not a display stop command has been transmitted from bathroom remote controller 4. If there is a display stop command, the process proceeds to step S2, and the display of the bathroom remote control device 4, the kitchen remote control device 6, and the laundry pouring remote control device 8 is stopped. If there is no display stop instruction, the process shifts to step S3 to continue the display output. In the display stop state, the operation switches S3 and S
7. When S11 is operated and the switch input detection is accepted, that is, in the operation preparation state, the process proceeds to the case where the power saving mode command switch S4 is input.

In step S4, when the power saving mode command switch S4 is input in step S1,
The kitchen remote controller 6 transmits a display stop command to each remote controller from the transmission / reception circuit 122. The received kitchen remote controller 6 and laundry pouring remote controller 8 stop displaying.

In step S5, it is determined whether or not a switch input has been detected in the display stop state. When a switch input is detected, the process proceeds to step S6, and when a switch input is not detected, the process proceeds to step S12.

At step S6, the switch input is a setting temperature switch, a reservation time switch, a water level change switch or other setting condition change switch, or an automatic mode switch S1, a reheating mode switch S2, a hot water supply switch S5, a call switch S6, etc. It is determined whether the switch is the operation command switch. If the operation command switch has not been input, the process proceeds to step S7 as a setting condition change switch. If it is an operation switch, the process proceeds to step S9.

In step S7, as an input of a setting condition change switch, a display is output for a predetermined time so that the setting change can be confirmed. In step S8, if there is an input of a new setting condition change switch within the display period of step S7, the change of the setting condition is accepted and the control unit 102
And a remote control device 4 for bathroom, a remote control device 6 for kitchen and a remote control device 8 for washing and pouring water, and a period display in which a setting change can be visually recognized from a switch input.

In step S9, automatic operation, reheating operation,
An operation command such as a hot water supply operation is transmitted to the control unit 102, the bathroom remote control device 4, the kitchen remote control device 6, and the laundry pouring remote control device 8. Since the transmission of the operation command can be confirmed, only the bathroom remote control device 4, the kitchen remote control device 6, or the laundry pouring remote control device 8 which has transmitted the operation command outputs the display for a predetermined time.

In step S10, it is determined whether or not operation start signals such as an operation start flag, a flame detection signal, and a water flow detection signal from the control unit 102 have been received. If the operation signal has been received, the process proceeds to step S11, and if not, the process proceeds to steps S1 and S2 to stop the display.

In step S11, a display is output until all the bathroom remote controller 4, the kitchen remote controller 6 or the laundry pouring remote controller 8 that has received the operation start signal such as the combustion operation of the water heater receives the operation end signal. . And
The display may be stopped a predetermined time after receiving the end signal.

If no switch input is detected in step S5, it is determined in step S12 whether an operation start signal has been transmitted from the control unit 102.
This is to determine whether or not the operation command has been transmitted and the control unit 102 has started combustion control or the like. Further, in the operation preparation state, the faucet of the bathroom, the kitchen, or the like is opened, and it is determined whether or not the hot water supply combustion is started by the generation of the water flow. If the hot water supply combustion has started, step S13
And the bathroom remote controller 4, the kitchen remote controller 6, or the laundry pouring remote controller 8, which has received the operation start signal such as the combustion operation of the water heater, outputs a display until it receives the operation end signal. If the hot water supply combustion has not been started, the processing from step S1 is restarted.

[0061]

As described above, according to the present invention,
The following effects are obtained. a. Unnecessary power consumption and C
O ₂ generation can be suppressed. b. Since the power-saving mode command switch is provided to cancel the operation of the display element and control the display element to be turned off, whether or not to set the power-saving mode can be determined based on the user's intention. c. Since the power-saving mode display element for displaying the power-saving mode is provided, it is possible to know from the display that the mode has shifted to the power-saving mode. d. When the operation is stopped, the display of the display element is displayed as a clock, so that the operation stop can be displayed separately from the power saving mode. e. In the power saving mode, when the control command switch is operated, the display element is operated for a predetermined time from the start of the operation, so that the driving time of the display element can be reduced and power saving can be achieved. f. In the power saving mode, the control command issued based on the operation of the control command switch allows the display element to be in the operating state until the necessary control operation is completed, thus avoiding the non-display state during operation. it can.

[Brief description of the drawings]

FIG. 1 is a diagram showing an overall configuration of a hot water supply / reheating device as an embodiment of a display device of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a control device.

FIG. 3 is a block diagram showing a configuration of a control unit, a bathroom remote control device, a kitchen remote control device, and a laundry pouring remote control device.

FIG. 4 is a circuit diagram showing a configuration of a power supply circuit and a display.

FIG. 5 is an operation flowchart showing display and cancellation of the display in the hot water supply / reheating unit.

[Explanation of symbols]

 2 Hot water supply / reheating unit 4 Bathroom remote control device 6 Kitchen remote control device 8 Laundry pouring remote control device S1 Automatic mode switch S2 Reheating mode switch S3 Operation switch S4 Power saving mode command switch S5 Hot water supply switch S6 Call switch S7 Operation switch S8 Automatic mode Switch S9 Temperature rise switch S10 Temperature fall switch S11 Operation switch S12 Automatic mode switch S13 Temperature rise switch S14 Temperature fall switch 102 Control unit 120 Control calculation unit 134 Display 138 Cutoff circuit 142 Control calculation unit 152 Display 156 Cutoff circuit 160 Control calculation Part 170 Indicator 172 Cut-off circuit

Continued on the front page (72) Inventor Shimei Kobayashi 201 Nishi-Kashiwara Nitta, Fuji City, Shizuoka Prefecture Takagi Industry Co., Ltd.

Claims (6)

[Claims] 1. A control command switch comprising one or more control commands for inputting a control command, a display element which is turned on by a display control output and displays necessary characters and symbols, etc., and is displayed by an input of the control command switch While generating various control outputs such as a control output, the display element is controlled to a lighting state to perform a necessary display on the display element, and the operation of the display element is released by shifting to a power saving mode. A display device, comprising: control means for controlling a light-off state. 2. A power saving mode command switch which is provided separately from the control command switch and instructs execution of a power saving mode, wherein the control means controls the display element based on an input of the power saving mode command switch. The display device according to claim 1, further comprising control means for canceling the operation and controlling the light-off state. 3. A power-saving mode display element for displaying the power-saving mode, wherein the power-saving mode display element displays the power-saving mode when shifting to the power-saving mode. The display device according to claim 1. 4. The display device according to claim 1, wherein the control means displays the clock of the display element when the driving operation is stopped. 5. The power supply control device according to claim 1, wherein, in the power saving mode, when the control command switch is operated, the display element is maintained in the operating state for a predetermined time from the start of the operation. Display device. 6. The control means maintains the display element in an operation state in a power saving mode until a necessary control operation is completed based on a control command issued based on an operation of the control command switch. The display device according to claim 1, wherein: