JPS6123245Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a capacity switching device for a bath device with a water heater, which allows the capacity to be switched in two places. The purpose is to prevent it from becoming large when it is set to large by the controller's switch.

Conventional gas baths with water heaters that can switch the capacity at two points have a two-contact switch on both the main controller and the bath controller, and the capacity can be switched at both. When I was in the kitchen, there were serious drawbacks, such as the fact that if you turned up the capacity in the kitchen, hot water would come out even in the bathroom, which could cause burns.

The present invention eliminates the above-mentioned conventional drawbacks, and embodiments thereof will be described below with reference to the drawings.

In Figure 1, 1 is the main controller,
2 is a 2-contact switch, a and b are its contacts,
3 is the bath controller, 4 is the 3-contact switch, a, b, and c are the contacts;
are connected to the contacts a and b of the above 2. 5
Hafuro's combustion control circuit, 6 is a water heater combustion control circuit, 7 is a water pressure responsive switch, 8 is a contact point of relay 12, 9 is a contact point of relay 13, 10 is a solenoid valve, 1
1 is a timer circuit, 14 is a thyristor, 15 is a transistor, 16 is a flame detection circuit, 17 is a thermocouple, 18 is a solenoid valve, and 19 is a solenoid valve for switching capacity.

In FIG. 2, 20 is an orifice, 21 is a main burner, 22 is a pilot burner, 23 is an igniter electrode, 24 is a water governor, 25 is a heat exchanger, 26 is a water heater, and 27 is a bath.
28 is the igniter.

When operating the water heater with the above configuration, connect commercial power to outlet 1 and turn on the switch.
Next, when the hot water heater 26 is opened, water flows through 24 and the rod senses the flow of water and closes the water pressure responsive switch 7. (At that time, water flows into 25
6), a current flows through the relay contact 8, the igniter 28 is operated, and a spark is produced at the electrode 23.
At the same time, current flows through the contact 9 to the solenoid valve 10, opening the valve. Then, gas is emitted from the pilot 22, ignited by the energy of the spark, and the flame heats the thermocouple 17, generating an electromotive force. This electromotive force is amplified by 16 flame detection circuits, and its output is applied to 15 bases and 14 gates. Then, 15 and 14 operate, and relay 12,
13 is reversed at the same time, and contacts 8 and 9 are reversed. Then, the solenoid valve 18 opens, gas passes through the orifice 20, flows to the main burner 21, ignites the flame 22, which heats the heat exchanger 25,
Hot water comes out from 6. At this time, selector switch 2b
and 4b are connected by a contact point, current flows to the solenoid valve 19, which opens 19, and gas flows from both 20 and 19 to the burner 21, which burns at high capacity and burns from 26. The temperature of the water is very high. Next, when switch 2 is reversed in the direction of a, no current flows to 19, so gas only flows from 20, so it burns at a low capacity and the temperature of the hot water from 26 is low.
Next, when switch 2 is at contact a, if contact 4 is set to a, current will flow through 19 again, increasing the capacity. In this way, the ability can be switched by the partner, and if the contact point of 4 is set to c, the switch of 2 can be used to switch between a and b.
No matter which point of contact, the ability will not be large.

As explained above, according to the present invention, the capacity can be changed by operating the changeover switch at two different locations, and one bath controller has a small dedicated contact point to change the capacity during the summer. When I am using it at a small capacity, I try to increase the capacity using the other main controller, but it does not increase the capacity even if I switch it. It is safe because the hot water does not reach high temperatures when you are taking a shower.

[Brief explanation of the drawing]

FIG. 1 is a control circuit diagram of a bath device with a water heater according to an embodiment of the present invention, and FIG. 2 is a configuration diagram of the same. 3... Bath controller, 4... Selector switch, 5... Combustion control circuit, 7... Water pressure responsive switch, 16... Flame detection circuit.

Claims (1)

[Scope of utility model registration request] The configuration is such that the capacity can be changed by changing the gas flow rate by opening and closing a solenoid valve installed in a part of the gas passage by switching multiple switches, and the main controller is equipped with a switch with two contacts a and b. The bath controller is equipped with a switch with three contacts a, b, and c, and the two contacts a and b of each switch are connected, and the third contact c of the bath controller's switch is the contact of the main controller. A bath device with a water heater, which is not connected to the switch and is open, and the electromagnetic valve for switching the capacity is connected to a circuit connected in series with each of the switching switches.