JPH02169943A - Ventilating fan interlocking device - Google Patents

Abstract

PURPOSE:To make a gas instrument useable only when a ventilating fan is operated and an intake dumper is opened by constructing the device as a system where a solenoid valve of the gas instrument is opened only after the intake dumper is opened. CONSTITUTION:Once contact pieces Sh, Sl of a switch 6 of a ventilating fan 1 are pushed, the device is actuated under the conditions of an electric motor being strong when the piece Sh is pushed, while it is actuated with weak when Sl. In operation, power is supplied to a rectifier of an intake dumper 2 through connection lines 21, 22 to actuate a rotary solenoid 13, whereby a dumper 13d is opened to cause the contact of a microswitch 14 to be closed toward MS2, permitting power to be fed to a power supply transformer 15. Herein, a solenoid valve 19 is opened and a gas instrument 3 is made useable by firing of a sparker 17 by operation of a gas interlocking clock 16.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a ventilation fan interlocking device, and more particularly to providing an interlocking device that supplies power to gas appliances only when the ventilation fan is operated and the supply air damper is opened.

[Conventional technology]

In the conventional device, as described in Japanese Patent Application No. 51-10!3130, a ventilation fan switch, a gas appliance solenoid valve, an exhaust blower, and a forced air blower are electrically connected.

[Problem to be solved by the invention]

In the above-described conventional technology, even if the forced air blower were to malfunction, the solenoid valve for the gas appliance would open, so there was no function to stop the use of the gas appliance, and there was a risk of an oxygen deficiency accident due to insufficient air supply.

The object of the present invention is to provide a ventilation fan, an air supply damper, and a gas appliance that can be used only when the ventilation fan is operated and the air supply damper is opened.
Our objective is to provide an interlocking system for gas appliances.

[Means to solve the problem]

The above object is achieved by providing a system that electrically connects the switch of the ventilation fan, the solenoid valve of the supply air damper gas appliance, and the solenoid valve of the gas appliance opens only after the damper of the supply air damper opens. Ru.

〔Example〕

An embodiment of the present invention will be described below with reference to FIG.

In the figure, 1 is a ventilation fan, 2 is a gas supply damper 3, and they are electrically connected to each other.

9 is a power source.

The ventilation fan 1 has an electric motor 4. Condenser 5 and strong.

It consists of a switch 6 having weak switching contacts Sh , Sm , and is electrically connected to the supply air damper 2 via connection lines 21 and 22.

The supply air damper 2 includes a gondensor 10. Diode 11.
Rectifier 12. Rotary solenoid 13° damper 13d
and a microswitch M with contacts MSt, MSz
It is composed of S.

The gas appliance 3 includes a power transformer 15. Full wave rectifier 18, solenoid valve 19. It is composed of a gas cock interlocking switch 16 and a sparker 17.

The operation of the ventilation fan interlocking device configured as described above will be explained using an example.

When the contacts Sh and St of the switch 6 of the ventilation fan 1 are pressed,
In the case of Sh, the electric motor 4 is operated at high power, and in the case of S, it is operated at low power, and during operation, power is supplied to the rectifier of the supply air damper 2 via the connecting wires 21 and 22, and the rotary solenoid 13 is activated. With the operation, the damper 13d opens, the contact of the microswitch 14 closes to the M S Z side,
The power transformer 15 is energized.

At this point, the solenoid valve 19 is opened, and the gas appliance 3 can be used by igniting the sparker 17 by operating the gas interlock cock 16.

〔Effect of the invention〕

According to the present invention, when the ventilation fan is operated and the supply air damper is opened to ensure the supply air, the solenoid valve of the gas appliance opens and becomes ready for use, and the ventilation fan is highly practical and prevents oxygen deficiency accidents. Equipment can be provided.

[Brief explanation of the drawing]

FIG. 1 is an interlocking connection diagram of the present invention.

Claims (1)

[Claims] 1. In the case where the ventilation fan (1) is electrically connected to the supply air damper (2) and the gas appliance (3), the ventilation fan (1)
When the switch (6) is operated, power is supplied to the supply air damper (2), the rotary solenoid (13) is activated, and by opening the damper (13d), the intermediate switch MS (14) connected to the gas appliance (3) is activated. ) is closed to the MS_2 side, a closed circuit for supplying power to the gas appliance (3) is formed, and the solenoid valve (19) of the gas appliance (3) opens.