JPS586166Y2 - Control box for central heating system - Google Patents

Description

[Detailed Description of the Invention] The purpose of the present invention is to propose a control box (device) for energy-saving operation of a central heating system using a fan convector.

In the case of a conventional central heating system using a fan convector, the operation of the heat source device and the fan convector are controlled separately.

For this reason, when a room thermostat is installed and the room temperature is adjusted while controlling the operation of the fan convector, the heat source device continues to operate even when the fan convector is stopped, resulting in natural heat dissipation loss and There is a problem that fuel and electricity are wasted.

The present invention was proposed to solve such problems, and its configuration consists of AC100V power input terminals 1 and 2, a control input terminal 3 for connection with a room thermostat,
4 and control output terminal 5.6 of heat source device a and AC1
00V fan convector connection terminals 7, 8, 9.
10 is provided, and when AC 100 V is applied between terminals 1 and 2, a voltage of 100 V is always obtained between terminals 7 and 8.
When 100V is applied, transformer relay 12 causes 36
When the room thermostat is turned on and the terminals 3 and 4 are closed, the transformer relay switch 13 is closed and the terminals 7 and 9 are closed.
A voltage of AC100V is obtained between the terminals
, 10, a voltage of AC 100V is obtained between terminals 9, 10,
This is a control box for a central heating system, which constitutes a circuit in which a relay switch 15 is closed when a voltage of AC 100V is obtained for 10 minutes, and the operating circuit on the heat source device a side is closed.

The present invention will be described in detail below based on the embodiment diagrams.The control box according to the present invention includes AC100V power input terminals 1, 2,
and control input terminals 3 and 4 to which the room thermostat is connected, control output terminals 5 and 6 to which the heat source control switch is connected, and connection terminals 7.8 and 9.10 for connection with AC100V fan convector b. and terminal 1
, a circuit that constantly obtains a voltage of 100 V between terminals 7 and 8 when 100 V AC is applied between terminals 7 and 2, and control input terminal 3.
, 4 constitutes a circuit such that when AC 100V is applied between the terminals 1 and 2, a low voltage of 36V or less is obtained by the transformer relay 12, and the room thermostat is turned on and the voltage between the terminals 3 and 4 is turned on. When closed, the transformer relay switch 13 is closed and a voltage of 100 V is obtained between terminals 7 and 9, and when the fan switch 16 on the fan convector b side is in the ON state, an AC voltage of 10 V is obtained between terminals 9 and 10.
A voltage of 0V is obtained, and AC100 is applied between these terminals 9 and 10.
The circuit configuration is such that when a voltage of V is obtained, the relay switch 15 is closed and the operating circuit on the side of the heat source device a is closed.

Next, an example of operation using the control box configured as described above will be explained.

First, connect the terminals 7', 8', 9', and 10' on the fan convector b side to the terminals 7, 8, 9, and 10 on the control box side of the present invention.
At the same time, terminals 5 and 6 are connected to the operating switch of water heater a, and terminals 3 and 4 are connected to a room thermostat.

Therefore, when a voltage of AC 100V is applied to input terminals 1 and 2, this voltage remains unchanged at terminal 7 of fan convector b.
It takes ',8'.

Furthermore, on the fan convector b side, the antifreeze switch 20 and the automatic valve 19 for controlling circulating water are connected to terminal 7'.

It is inserted between 8' and 10', and when the temperature reaches freezing temperature, the switch 20 is turned on and a signal is sent to the automatic valve 19 to open the automatic valve 19.

In addition, a low voltage of AC 36 V or less is applied between the control input terminals 3 and 4 by the action of the transformer relay 12, and when the room thermostat connected between these terminals is turned on, the relay switch 13 closes and a voltage is applied between the terminals 7 and 9. AC100V can be obtained.

Therefore, the fan switch 16 on the fan convector b side
When the fan 18 enters any operational position, the fan 18 is activated.

That is, when the fan switch 16 is in the ON state, the fan convector b is automatically controlled by the room thermostat.

Since the fan switch 16 uses a double switch having a contact 17, when the switch is turned on, terminals 7' and 10' are short-circuited via the contact 17, and the terminals 8' and 10' are short-circuited. A voltage of AC 100V is applied between the terminals 10' and 19, and the automatic valve 19 opens.

In this way, the automatic valve 19 is opened by operating the fan switch 16 regardless of the room thermostat.

Next, the fan switch 16 is turned on and the contact 17 is closed.
When terminals 7' and 10' are short-circuited and the room thermostat connected between terminals 3 and 4 is turned on, input terminals 2 and 9 of the control box are short-circuited.

As a result, AC 100V is obtained between terminals 9' and 10', relay switch 15 is closed, and control output terminals 5 and 6 are short-circuited.

As a result, the operating circuit of heat source device a is closed.

Note that since the room thermostat is connected to the terminals 3 and 4, the heat source device a is operated only when the fan switch 16 is turned on and the room thermostat is in the ON state.

As described above, when a central heating system is operated using the control box of the present invention, the following effects can be expected.

■ Conventionally, the heat source device and fan convector operated independently, so if the heat source device was not stopped when the fan convector stopped, the heat source device would continue to operate.

For this reason, there was natural heat radiation from the heat source device and the circulation circuit, and fuel was also wasted.

However, by using the control box of the present invention, the heat source device is also stopped in conjunction with the fan convector, so there is no such waste and it is effective in terms of energy saving.

■ When the fan convector is controlled by the room thermostat, the heat source device is also controlled in conjunction with this.

■ The heat source device also starts linked operation by operating only the fan switch on the fan convector side, so there is no need to operate the fan switch and the operation switch of the heat source device separately when starting system operation, which is very easy to do. It is.

This point also applies when the system is stopped.

4. Since the room thermostat is connected to the room thermostat at a low voltage, installation of the room thermostat is easy and safe.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a control box according to the present invention and a fan convector controlled by the control box, and FIG. 2 is an overall diagram of a central heating system using the control box of the present invention. 1, 2... Power input terminal, 3, 4...
Control input terminal, 5゜6... Control output terminal, 7,
8,9.10... Connection terminal, 12...
Transformer relay, 13...Transformer relay switch, 15...Relay switch.

Claims (1)

[Scope of utility model registration request] AC 100V power input terminals 1, 2, input terminals 3, 4 for connection to the room thermostat, output terminals 5, 6 for controlling the heat source device a, and connection terminals 7, 8, 9, 10 for connection to the AC 100V fan convector, When AC100V is applied between terminals 1 and 2, 100V is constantly applied between terminals 7 and 8.
Between the circuit that can obtain the voltage (2) and the control input terminals 3 and 4, a circuit is constructed such that when AC 100V is applied between the terminals 1 and 2, a low voltage of 36V or less is obtained by the transformer relay 12. The room thermostat turns on at the same time.
When the terminals 3 and 4 are closed, the transformer relay switch 13 is closed and a voltage of AC 100V is obtained between the terminals 7 and 9. When the fan switch 16 on the fan convector b side is in the ON state, the transformer relay switch 13 is closed and the voltage of AC 100V is obtained between the terminals 7 and 9. A central heating system constitutes a circuit in which a voltage of AC 100V is obtained between terminals 9 and 10, and when a voltage of AC 100V is obtained between terminals 9 and 10, a relay switch 15 is closed and the operation circuit on the heat source unit a side becomes a leap. control box.