JPH02225937A - Remote operation device having plurality of operation sections - Google Patents

Abstract

PURPOSE:To reduce the number of wiring between respective operation sections and the main body by performing the selection of the first operation section and the second operation section merely by switching the regulating voltage with a resistance level switching means in the first operation section having a variable resistor for regulating the voltage applied. CONSTITUTION:When the user opens a hot water tap, water flows into the heat exchanger 13, which is detected by a flow switch 19. Then, a constant voltage VDD is supplied from the voltage supplying section 41 to respective controllers, and the ignition control is performed with the predetermined sequence. When the ignition is detected by a flame rod and the flame became stable, a subcontroller 60 is selected if the user kept the selection switches 91, 92 and the voltage V60 from the subcontroller 60 is within the predetermined range. Conversely, if the selection switches 91, 92 are opened, the main controller 50 is selected. Based on the respectively regulated voltages V60, V50, the burning rate of burners 11 is determined, which, in turn, operates the fan 12 and the governor proportioning valve 23 for temperature adjustment to cause the water flowing in the heat exchanger 13 to be heated to the intended temperature.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a remote control device that includes a plurality of operating sections and controls equipment by giving priority to the operating state of one of the operating sections.

[Prior Art] In a water heater equipped with a plurality of hot water supply ports, for example, as shown in FIG.
A hot water temperature controller (hereinafter referred to as r main operation section) 110 is provided for setting the hot water temperature. In addition, since a large amount of hot water is generally used in the bathroom, a hot water temperature controller (hereinafter referred to as "remote control unit") 120 is also provided in the bathroom, so that the hot water temperature can be freely set even in the bathroom. .

In this case, each of the operating units 110 and 120 may use, for example, a variable resistor to adjust the supplied applied voltage by changing its resistance value.

In addition, for safety reasons, a remote control unit in the bathroom is installed to control the hot water temperature with priority given to the set temperature in the bathroom.
20 is equipped with a changeover switch 150 that is used as a priority switch that allows the remote control unit 120 to be operated preferentially.

This selector switch 150 is used to determine which operating unit sends an effective operating signal for control, and the operating signal is sent only from the operating unit selected by the selector switch 150.

In this case, the main operation section 110 is connected only to the main body 100 through connection lines 111 and 112.

In order to perform preferential operation by the remote control unit 120 using the changeover switch 150, the main operation unit 110 is once connected to the connection adapter 130 provided in the main body 100, and then
Furthermore, the adapter 130 is connected by connecting wires 121 and 122.
is connected to the remote control section 120. Then, the operation signal is transmitted only from the priority side operation section selected by the changeover switch 150 in the remote operation section 120 to the connection line 123.12.
4. In addition, although the non-priority side operation section does not send out an operation signal, each operation section has combustion lamps 118 and 12 to notify the user that the water heater is operating.
8, and the non-priority side operation section is also connected to connection lines 125 and 126 in order to turn on or blink the combustion lamp during operation. Therefore, a plurality of connection lines 121 to 126 are provided between the remote control section 120 and the adapter 130 of the main body 100. Note that 119 and 129 are numbers for operating the variable resistor.

[Problems to be Solved by the Invention] In this way, in the past, the operating operation unit was connected to the remote control unit 1.
In order to switch using the changeover switch 150 provided in the main body 100, first, the main operation unit 110 connected to the main body 100 is
Furthermore, since the remote control section 120 is also connected, the number of connection lines between the remote control section 120 and the main body 100 increases. Further, since the remote control section 120 is usually provided at a location apart from the main body 100, there is a problem that wiring may be incorrectly performed or that wiring is time-consuming.

An object of the present invention is to reduce the number of wires between each operating section and the main body in a remote control device including a plurality of operating sections.

[Means for Solving the Problems] The present invention provides a first operating section and a second operating section each including a variable resistor for adjusting an applied voltage;
A selection means for selecting the first operation section or the second operation section is provided, and a constant voltage is applied to each of the first operation section and the second operation section, and the selection means selects the first operation section or the second operation section. a control unit that controls the operating state of the device based on a voltage value within a predetermined voltage range detected by a voltage detection unit for detecting the voltage adjusted by the first operation unit or the second operation unit, respectively; In the remote control device, the first operating section includes resistance value switching means for switching the voltage value adjusted by the variable resistor to outside the predetermined voltage range, and the selecting means detecting the voltage regulated by the voltage, selecting the first operating section when the detected voltage is within the predetermined voltage range, and selecting the second operating section when the detected voltage is outside the predetermined voltage range. As a practical means.

[Function] In the present invention, when the resistance value switching means is operated and the regulated voltage of the first operating section is switched to a voltage within a predetermined voltage range, the selection means switches the first operating section to a voltage within a predetermined voltage range. Select the first
The operating state of the device is controlled based on the voltage adjusted by the operating section of the device.

Furthermore, when the regulated voltage of the first operation section is switched to a voltage outside the predetermined voltage range by operating the resistance value switching means, the selection means selects the second operation section and The operating state of the device is controlled based on the voltage adjusted by the operating section. Therefore, in the first operating section, the operating state layer can be operated preferentially at any time by operating the resistance value switching means. can.

[Effects of the Invention] In the present invention, selection between the first operating section and the second operating section is performed simply by switching the adjustment voltage using the resistance value switching means of the first operating section. Therefore, each operating section can be independently connected to the selection means. Therefore, the wiring for connecting each operation section is simplified.

Therefore, the effort required for wiring work is reduced, and wiring errors are also reduced.

[Example] Next, a remote control device including a plurality of operation sections of the present invention will be described based on an example shown in the drawings.

Inside the combustor case 10 of the gas water heater 1 shown in FIG.
A bar group 11 consisting of a plurality of burners is provided. A blower 12 is provided below the combustor case 10 for supplying combustion air to the burner group 11. A wood-tube heat exchanger 13 is provided above the burner group 11 in the combustor case 10, and water passing through the interior is heated by combustion heat from the burner group 11. Combustor case 1
A sparker 14 for igniting the burner group 11 and a flame rod 15 for detecting ignition of the burner group 11 are provided near the burner group 11 in the burner group 11 . Furthermore, an exhaust port 2 is provided on one side of the combustor case 10 for discharging combustion exhaust gas to the outside.

A nozzle pipe 16 for supplying fuel gas is provided below the burner group 11.
A plurality of fuel injection ports L6a that eject fuel gas are provided corresponding to each burner.

The fuel pipe 20 that guides the fuel gas to the nozzle pipe 16 includes two electromagnetic valves 21 and 22 that allow the fuel gas to pass when energized, and a governor that adjusts the amount of fuel gas supplied by controlling the supply pressure according to the energized current. Proportional valves 23 are provided in order from the upstream side.

A water supply pipe 17 that leads water from a water supply source (not shown) to the heat exchanger 13 is equipped with an electric water flow control device 18 for adjusting the amount of hot water supply, and a flow rate sensor 19 for detecting the amount of water passing through the heat exchanger 13. The heat exchanger 1 is provided in order from the upstream side.
Hot water pipe 1 that leads hot water flowing out from 3 to a hot water supply port (not shown)
7a is equipped with a hot water outlet temperature thermistor 25 that detects the outlet temperature of hot water flowing out from the heat exchanger 13.

The control device t30, as shown in FIG. The blower 12, governor proportional valve 23, etc. are driven by this.

Further, in order to set the hot water temperature, the main controller 50 is provided close to the water heater, and a sub-controller 60 is provided, for example, in the bathroom. It is connected to the control circuit 31 via.

As shown in FIG. 1, the remote control interface circuit 40 (hereinafter referred to as [remote control circuit 40)]
. . a voltage supply section 41 that generates a voltage, a remote control selection section 42,
It has each functional section of a voltage discrimination section 42a and a voltage detection section 43,
A signal according to the operating state of each controller 50, 60,
It is sent to the control circuit 31 as a hot water temperature setting signal.

The voltage supply unit 41 supplies a constant voltage (■) in response to a signal from the control circuit 31 when the water heater starts operating. . This constant voltage VaD is applied to each controller 50, 60 via terminals 41A and 41B.

The remote controller selection unit 42 receives voltages (1), 2, which are adjusted by the respective controllers 50, 60, are input via the terminals 42A, 42B, and appear across the respective ends of the resistors 44, 45;
. , ■Select 6°.

Here, the input voltage V changes from 2 [V] to 4 [■] as shown by the diagonal line A in FIG.
], the sub-controller 60 is selected, and the voltage of the sub-controller 60 is . is the hot water temperature setting signal. 2[
If the voltage is less than 71, the main controller 50 is selected, and the voltage V of the main controller 50 is set. is the hot water temperature setting signal.

The voltage detection unit 43 detects 2[ of the selected controllers].
v] to 4[■] are sent to the control circuit 31 as control signals.

The main controller 50 has a terminal 50A and a terminal 50B connected to the terminals 41A and 42A of the recon circuit 40 via a connection line 71 and a connection line 72, respectively, and a terminal 5O.
A constant voltage V applied to A. The remote control circuit 40 is lowered by an adjustment diagram 151 consisting of a plurality of resistors.
Send to.

The adjustment circuit 51 is provided between the terminals 50A and 50B, and has a simple configuration in which a variable resistor 52 for temperature adjustment, a fixed resistor 53, and a semi-fixed resistor 54 for fine adjustment are connected in series.

The main controller 50 also has an output circuit of a bridge diode 55 connected in parallel to the adjustment circuit 51.
A light emitting circuit 59 consisting of a resistor 56, a light emitting diode 57, and a semi-fixed resistor 58 is provided, and the light emitting diode 57 lights up in response to a constant voltage VDD applied in response to the operation of the gas water heater, indicating that the gas water heater is in operation. It serves as a burning lamp to let you know that something is going on.

The sub-controller 60 has a terminal 60A and a terminal 60B.
It is connected to the terminals 41B and 42B of the remote control circuit 40 via the connection line 73 and the connection line 74, respectively, and the terminal 60
The constant voltage ■DD applied to A is lowered by an adjustment circuit 61 consisting of a plurality of resistors, and
Send to.

Similar to the main controller 50, the sub-controller 60 includes a variable resistor 62 for temperature adjustment, a fixed resistor 63,
A resistor 66, a light emitting diode 67, and a semi-fixed resistor are connected to an output circuit of an adjustment circuit 61 in which a semi-fixed resistor 64 for fine adjustment is connected in series, and a bridge diode 65 connected in parallel between terminals 60A and 60B. A light emitting circuit 69 consisting of 68
is provided.

Further, in the sub-controller 60, in order to switch the voltage adjusted by the adjustment circuit 61 to outside the predetermined voltage range, interlocking changeover switches 91 and 92 are connected in series between the adjustment circuit 61 and the terminals 60A and 60B. A fixed resistor 93 is connected between the contacts 92a and 92b of the changeover switch 92.

Here, if the purpose is simply to switch the voltage to be regulated to outside the predetermined voltage range, only the changeover switch 92 is provided,
It is sufficient to cut off the power supply to the sub-controller 60, but since the sub-controller 60 also needs to be informed by the light-emitting diode 67 that the gas water heater is operating, by opening the changeover switch 91, the control circuit 6
1 is disabled, while the voltage drop is increased by the fixed resistor 93, so that a low voltage outside the predetermined voltage range is sent from the terminal 60B.

As a result, the sub-controller 60 can prioritize the setting of the hot water temperature.

Next, the operation of the gas water heater of this embodiment having the above configuration will be explained with reference to FIG. 5, focusing on the remote control circuit 40.

The user opens the hot water tap and water flows into the heat exchanger 13,
When detected by one water flow switch (YES in step 1), a constant voltage VDD is supplied from the voltage supply section 41 and applied to each controller (step 2), and ignition control is performed in a predetermined sequence. (
Step 3).

When ignition is detected by the flame rod 15 and the flame becomes stable, the voltage v6° adjusted by the sub-controller 60 is determined.

In the sub-controller 60, if the user closes the changeover switches 91 and 92 and the voltage ■6° from the sub-controller 60 is within the predetermined range (step 4).
YES), the sub-controller 60 is selected (step 5).

Conversely, if the changeover switches 91 and 92 are open (No in step 4), the main controller 50
is selected (step 6).

When each controller is selected, the respective regulated voltage ■6°,■,. Based on the bartu group 1
1 is determined, and the temperature of the blower 12 and the governor proportional valve 23 is controlled based on it (step 7).
Water passing through the heat exchanger 13 is heated to the desired temperature.

This temperature adjustment control (step 7) is repeatedly performed through step 4 and subsequent steps if no hot water supply stop is detected (No in step 8). Therefore, if the changeover switches 91 and 92 are operated in the middle of the process and are reversed, the temperature control will be performed in the settings set by the controllers that are opposite to each other.

As described above, in this embodiment, priority can be given to the sub-controller 60 using the changeover switch of the sub-controller 60. Furthermore, since it is only necessary to provide two connection wires between each controller 50, 60 and the control device 30, it is possible to reduce the effort required for wiring work and to reduce incorrect wiring. .

In the above embodiments, a gas water heater is shown, but the present invention is not limited to a combustion device having a plurality of operation parts, and may be an air conditioner such as an air conditioner or a lighting equipment having a plurality of operation parts.

[Brief explanation of the drawing]

Fig. 1 is a circuit explanatory diagram showing the connection state between the remote control circuit and each controller in the control device for the gas water heater of this embodiment, and Fig. 2 is a schematic configuration diagram showing the outline of the gas combustion type water heater of this embodiment. , FIG. 3 is a machine IM block diagram showing the functional configuration of the control device of this embodiment. Fig. 4 is an explanatory diagram for explaining voltage discrimination in the remote control circuit of this embodiment, Fig. 5 is a flowchart for explaining the operation of this embodiment, and Fig. 6 is a schematic diagram showing a conventional remote control device. be. In the figure, 30...control device (I! remote control device equipped with several operation parts), 31... control circuit (!II control part), 4
2... Remote controller selection section (selection means), 43... Voltage detection section, 50... Main controller (second operation section), 52... Variable resistor, 60... Sub controller (second operation section). 1 operation unit), 62...variable resistor, 91.9
2... Selector switch (resistance value switching means).

Claims (1)

[Claims] 1) A first operating section and a second operating section each including a variable resistor for adjusting an applied voltage; and the first operating section or the second operating section. a selection means for applying a constant voltage to the first operation section and the second operation section, respectively, and applying a constant voltage to each of the first operation section or the second operation section selected by the selection means. In a remote control device comprising a control section that controls the operating state of the device based on a voltage value within a predetermined voltage range detected by a voltage detection section for detecting the regulated voltage, the first operation section is , further comprising resistance value switching means for switching the voltage value adjusted by the variable resistor to outside the predetermined voltage range, the selection means detecting the voltage adjusted by the first operating section, and detecting the detected voltage value. The remote control device is characterized in that the first operating section is selected when the voltage applied is within the predetermined voltage range, and the second operating section is selected when the voltage is outside the predetermined voltage range.