JPS6026281Y2 - Control device for bathtub with water heater - Google Patents

Description

[Detailed description of the invention] This invention relates to an electrically controlled bathtub with a water heater, and in particular, to enable remote control of a series of controls from ignition to extinguishing of this type of equipment installed outdoors. At the same time, a main operation section is provided outside the bathroom, which allows all controls and operations to be performed, and a sub-operation section placed inside the bathroom can also be operated as needed, improving safety. The aim is to

Hereinafter, the structure and effects of the present invention will be described in detail according to the illustrated embodiments. Fig. 1 shows the electrical circuit diagram, 1 is the main operation part, 2 is the sub-operation part, 3 is the instrument, and the main operation part is For example, 1 is placed on the wall of the kitchen, the sub-operation part 2 is placed on the wall of the bathroom, and the appliance 3 is placed near the outer wall of the bathroom, and the three are electrically connected as appropriate.

Further, a plurality of electromagnetic valves inserted into the gas circuit within the appliance 3 are arranged as shown in FIG.

Here, to explain the relationship between the solenoid valves in more detail, the main valve 4 following the gas inlet opens and closes the main gas circuit and the circuit to the pilot burner 5, and the main gas circuit is branched as appropriate for bath use. Gas is supplied to the main burner 6, sub-pilot burner 7, and the first burner 8, second burner 9, and third burner 10 for the water heater, respectively.

A bath valve 11 is inserted into the circuit to the main burner 6, and a sub-pilot valve 1 is connected to the sub-pilot burner 7.
2 is inserted to open and close the gas circuits to these burners, and a first hot water supply valve 13 and a water pressure responsive gas valve 14 are inserted in series downstream of the branch point to these gas circuits to control the water pressure. The first burner 8 and the second burner 9 from the downstream side of the responsive gas valve.
, branched to the third burner 10 for gas connection, and connected to the second burner 9
A second hot water supply valve 15 is inserted in the branch circuit to the third burner 10, and a third hot water supply valve 16 is inserted in the branch circuit to the third burner 10.

The electrical connections of the electromagnetic valves described above will be further explained in detail with reference to FIG.

The power is turned on to the main operation unit 1 installed in the kitchen, etc., and the three are appropriately connected to the sub-operation unit 2 and the appliance 3 through a plurality of connection terminals provided respectively. Although the electrical components are designed to operate, the main operation unit 1 includes a power supply device 18 including a power switch 17;
An ignition switch 19, a flame detection circuit 20, and a capacity changeover switch 21 are accommodated, and eight connection terminals are provided to enable electrical connection with the sub-operation section 2 or the appliance 3.

The power supply device 18 includes a diode bridge circuit rectifier and a transformer, the negative terminal of which is grounded.

On the other hand, a flame detection circuit 20, a main valve circuit 22, an ignition circuit 23, and a main operation circuit 24 are connected in parallel to the positive electrode.
The negative pole of the flame detection circuit 20 is grounded, and its input terminals 25, 26 are connected to the connection terminal 2 of a thermocouple 27 arranged inside the appliance 3 and near the pilot burner 5.
Connected to 8.29.

The main valve circuit 22 includes a normally open contact 30 which serves as an output contact of the flame detection circuit 20, and a light emitting diode 31 connected in series with the normally open contact 30.
The negative electrode of the light emitting diode 31 is grounded, and the negative electrode of the other diode 32 is connected to the terminal 33.

The ignition circuit 23 also includes a normally open contact 34 of the ignition switch 19.
A light emitting diode 35 and a terminal 36 are connected in series to
The negative electrode of the light emitting diode 35 is grounded, and the negative electrode of the diode 37 is connected to the terminal 33 described above.

The main operating circuit 24 is a normally closed contact 38 of the ignition switch 19.
The normally open output contact 39 of the flame detection circuit 20 and the terminal 40 are connected in series. It is connected to a confirmation circuit whose negative pole in 20 is grounded, thereby forming a start confirmation circuit.

The movable contact 43 of the capacity selector switch 21 is the normally open output contact 3
9, whose corresponding fixed contacts are configured as three poles, one pole being in the neutral state and the other two poles being connected to terminal 44.
．． 45.

In addition, a grounded terminal 46 is provided in the main operation section 1, and the terminal 46 is connected to a terminal 46 provided in the appliance 3.
7, and this terminal is further connected to the other terminal 48 within the instrument 3 via a main valve 4 provided within the instrument 3.

Inside the device 3 are a sub-pilot valve 12 and an igniter 49.
and the normally closed contact 51 of the relay 50 are connected in series, and the terminal 47 and the other terminal 5 are connected in series.
The terminal 52 and the terminal 48 are inserted between the terminals 36 and 33 of the main operating section 1, respectively.
connected to.

Also, a bath valve 11 whose negative electrode is connected to the terminal 47,
The first to third hot water supply valves 14, 15.16 are connected in parallel, and the positive terminal of the bath valve 11 is connected to the terminal 53, and the first hot water supply valve 1
The positive electrode of the third hot water supply valve 16 is connected via the terminal 54 to the terminal 40 of the main operation section 1 and the terminal 55 of the sub-operation section 2, and the positive electrode of the third hot water supply valve 16 is connected from the terminal 56 to the terminal 57 of the sub-operation section 2 and the normally open terminal of the relay 58. After returning to the terminal 60 on the appliance 3 side via the contact point 59, the positive terminal of the second hot water supply valve 15 is connected to the terminal 45 of the main operation part 1 from the terminal 61 in the appliance 3 to the terminal 62 of the sub-operation part 2 and the electromagnetic relay 58. are connected to the terminal 44 of the main operating section 1 after returning to the terminal 64 on the appliance 3 side via the normally open contact 63 of the
A diode 65 is inserted between the positive electrodes.

Further, a normally open contact 67 of the relay 50 inserted between the terminal 66 and the terminal 47 is inserted between the terminal 54 and the terminal 52.

Next, a changeover switch 68 and a bath operation circuit 69 are housed in the sub-operation part 2, and the movable contact 70 of the change-over switch 68 is connected to the main control unit from the terminal 55 of the sub-operation part to the terminal 54 of the appliance 3. A series circuit of the movable contact, one fixed contact 71 corresponding thereto, a relay 58, and a light emitting diode 72 are connected in series to the ignition circuit 24 of the operating unit 1.
and bath operation circuit 69 are connected in parallel to terminal 5.
5.73, the terminal 73 is grounded, and the fixed contact 71 is inserted between the terminals 74.
It is connected to the electromagnetic relay 59 via 66.

Here, the bath operation circuit 69 is a normally open contact bath switch 7.
5 and normally closed contact bath fire extinguishing switch 76 and electromagnetic relay 7
7 and its normally open contact 78 to form a self-holding circuit.

The fixed contacts of the changeover switch 68 are separated from the four poles, one pole 71 is connected to the relay 51 as described above, one pole 79 is in the neutral state, and the other two poles 80, 81 are connected to the relay 51.
One pole 80 is connected to the terminal 62 via a normally open contact 82 of the relay 58, and the other pole 81 is connected to the terminal 57 via a normally closed contact 83 of the relay 58.

To explain the operation of the above-mentioned control device in more detail, when the power switch 17 is closed, the flame detection circuit 20 is energized, the normality of the circuit is confirmed, and if the circuit is in a normal state, the flame detection circuit 20 is inserted into the confirmation circuit. When the light emitting diode 42 emits light, it is confirmed whether the circuit is normal or abnormal.

Next, when you press the ignition switch 19, the contacts switch,
The normally open contact 34 of the ignition circuit 23 is closed, and the sub-pilot valve 12, the main valve 4, and further the igniter 49 are energized, and the pilot burner 5 and the sub-pilot burner 7 are ignited.

When this state is maintained for a certain period of time, the thermocouple 27 is heated by the flame of the burner, and when the temperature rises to an appropriate temperature, the thermoelectromotive force reaches a predetermined value, and this input produces an output from the flame detection circuit 20. At the same time as the open contacts 30 and 39 are closed, the normally closed contact 41 is opened, the light emitting diode 42 extinguishes the light, the light emitting diode 31 emits light to notify the pilot ignition state, and the main valve 4 is opened. Retained.

When the operating force of the ignition switch 19 is released, the movable contact returns and the main operation circuit 24 is connected, and the light emitting diode 72 in the sub-operation section 2 is energized to emit light, and on the other hand, the light emitting diode 72 that was previously in the emitting state is The light emitting diode 35 that was there is extinguished, and the circuit to the igniter 49 and the sub-pilot valve 12 is opened.

In this case, if the movable contact 70 of the changeover switch 68 in the sub-operation section 2 is connected to the fixed contact 71,
The relays 50 and 58 mentioned above are activated, and the output contacts of these relays reverse thinning and closing, and the light emitting diode 1-' 35 of the main operation section 1 is in the light emitting state, and the hot water supply capacity switch is activated. The main operation unit 1 side notifies that this is possible, and the changeover switch 21 can be operated to open the second and third hot water supply valves 15 and 16 by the action of the relay 58.

That is, when the movable contact 43 of the changeover switch 21 is connected to the neutral contact, only the first hot water supply valve 13 is opened and only the first burner 8 burns in response to the operation of the hydraulic pressure responsive gas valve 14, and the hot water supply capacity is at the minimum. is in a state of

When the movable contact 21 is switched and connected to the fixed contact 84.85, the second and third hot water valves 15 are connected by the action of the diode 65.
．． 16 are additionally opened one after another, increasing the hot water supply capacity.

Conversely, the movable contact 70 of the changeover switch 68 in the sub-operation section 2
When the fixed contact 71 is switched to the other fixed contact 79°80.81, the circuit to the relay 58 is opened and each contact returns to the state shown in the figure, and hot water is supplied by the same action as described above. In addition to being able to switch the ability, in this case, the main operation section 1
On the other hand, it is impossible to switch the hot water supply capacity at relay 50.
The circuit to is also opened, its contact is restored, and the light emitting diode 3
5 goes out, confirming that the hot water supply capacity cannot be switched using the main operation unit 1.

Next, when using the bath, the movable contacts of the changeover switch 68 are the three fixed contacts mentioned above. When the bath switch 75 or the fire extinguishing switch 76 is operated, depending on whether it is connected to the switch 75 or the fire extinguishing switch 76, the main burner 6 burns and extinguishes accordingly.

Further, since the circuit for this purpose employs a self-holding circuit, even if the power switch 17 is opened while the bath is in use, accidents caused by turning it on again are prevented.

In addition, in the case of the embodiment of the present invention, a feedback circuit is appropriately incorporated between the instrument 3 and the sub-operation section 2, and the connection cord between the main operation section 1 and the instrument 3 and the connection cord between the sub-operation section 2 and the instrument 3 are connected to each other. It also has an eight-wire configuration, allowing the common use of an eight-core cable as a remote control connection cord, which is a great advantage in equipment installation work.

In the case of the embodiment of the present invention, the pilot burner 5 is arranged in the center, and the main burner 6 for bathing and the first to third burners for hot water supply are arranged on both sides of the pilot burner 5.
Burners 8, 9 and 10 are installed. Second and third burners 9 on the outside of the waist.
, 10, so that the first burner 8 is in the combustion state in both cases, and when switching the hot water supply capacity, the pilot burner 5 is switched from the pilot burner 5 to the second and third burners. The flame will surely transfer to the burners 9 and 10, and the drawback of poor flame transfer will be eliminated.

As described above in detail, the control device of the present invention is equipped with a power-on device in a bathtub with a water heater that can be operated from both the main operation section 1 and the sub-operation section 2 by electrical devices. The main operation section 1 enables ignition operation, extinguishing operation, and switching of water heater capacity, while the sub-operation section enables bath use operation and water heater capacity switching, and enables the above-mentioned bath use operations. Since this feature is characterized in that the circuit for the operation is constructed by a self-holding circuit, the danger of operating with both the main operation section 1 and the sub-operation section 2 is eliminated and safety is improved.

[Brief explanation of the drawing]

Fig. 1 is an electric circuit diagram of an embodiment of the present invention, and Fig. 2 is a gas circuit diagram thereof.
...Sub-operation section, 21...Selector switch,
68......Selector switch.

Claims (1)

[Scope of utility model registration request] In a bathtub with a water heater that can be operated from both the main operation part 1 and the sub-operation part 2 using various electrical devices, the main operation part 1 equipped with a power supply device can perform ignition, extinguishing, and water heater operations. On the other hand, the auxiliary operation section enables the bath use operation and water heater capacity switching, and the circuit for the bath use operation is configured with a self-holding circuit. A control device for a bathtub with a water heater.