JPS63204045A - Ventilating switch - Google Patents

Abstract

PURPOSE:To prevent a ventilating fan from being left switched-ON and switched-OFF and to perform proper ventilation even during the absence of a user, by a method wherein indoor atmosphere, e.g. temperature, humidity, being an object is perceived by means of a simple switch to effect automatic operation. CONSTITUTION:One side of an electric contact 3, perceiving indoor atmosphere, e.g. temperature, humidity, to motion automatically, is connected to a gate pole G of a switching element 4, and the other side thereof is connected to a pole T2 of the switching element 4 through a resistor 5. A ventilating fan 7 is mounted on a ceiling surface 9, and a ventilating switch body 1 is mounted on a wall surface 10. When a switch, mounted on the wall surface 10 and perceiving temperature, perceives indoor atmosphere, the electric contact 3 is closed, a current flows through the resistor 5 to the gate pole of the switching element 4 to energize the switching element. The ventilating fan 7 is run. Inversely, when the electric contact 3 is opened, the ventilating fan 7 is stopped. When operation and a stop are effected according to humidity, the electric contact 3 of a switch part may replaced with a switch, opened or closed depending upon humidity.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ventilation switch for automatically ventilating a living room in a general residence.

Conventional technology In recent years, hot air has been generated from inside living rooms of houses.

It has become common practice to install ventilation fans to exhaust moisture, pollutant gases, etc. to the outside.

As shown in FIG. 5 and FIG. 6, the ventilation fan 100 is installed, for example, on a ceiling surface 101, and a ventilation switch 103 is connected to a power source 102, and the user inputs the ventilation switch 103 as necessary to control the ventilation inside the room. Problems to be solved by the invention The conventional ventilation switch leaves the operation and stop of the ventilation fan 100 to the user's will, which means that the user is always responsible for If you were not in the area, you would often forget to turn it off or put it on. Also, especially when people were away from home, it was common to close windows and doors and turn off switches, which allowed heat and humidity to stay indoors, often having a negative impact on furniture.

The present invention is intended to solve these problems and aims to automatically ventilate the room based on the indoor atmosphere rather than the user's will.

Means for solving the problem In order to solve this problem, the present invention provides a circuit that connects a power supply in parallel to a switching element connected in series to the motor of a ventilation fan, and senses indoor atmosphere such as temperature and humidity. Then, an operating electrical contact is connected to the gate electrode of the switching element to open and close the circuit.

With this configuration, when the electrical contact senses the indoor atmosphere and closes, current flows to the gate electrode of the switching element, making the switching element conductive, closing the circuit connected to the power supply, and starting the ventilation fan. Become. Furthermore, when the electrical contacts open, the switching element becomes non-conductive and the ventilation fan stops.

EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 to 4.

In the figure, 1 is a ventilation switch body made of resin material, and a sensing part 1b for sensing the indoor atmosphere is on the front side 1a.
An energizing circuit section 2 is provided on the rear surface 1C.

Electrical contact 3, which operates automatically even when sensing indoor atmosphere such as temperature and humidity, connects one side to the gate electrode G of switching element 4.
the other is connected to the switching element 4 through the resistor 6.
It is connected to the T2 pole of.

6 is a resistor connected to the gate pole G and T1 pole of the switching element 4. T2 pole of switching element 4 and power supply 8
A ventilation fan 7 is connected between.

Wiring connections between the power source 8, the ventilation fan 7, and the ventilation switch main body 1 are made using terminal numbers a, b, c, and d.

A ventilation fan 7 is installed on a ceiling surface 9, and a ventilation switch main body 1 is installed on a wall surface 10.

The operation of a switch operated by temperature, for example, in the above configuration will be described below.

When the temperature sensing switch installed on the wall surface 10 senses the indoor atmosphere, the electrical contact 3 closes and the switching element 4
A current flows through the resistor 6 to the gate electrode of the ventilation fan 7, the switching element becomes conductive, and the ventilation fan 7 is operated. Conversely, when the electrical contact 3 opens, the ventilation fan 7 stops.

In addition, when operating and stopping depending on humidity, this can be done by replacing the electrical contacts 3 of the switch section with a switch that opens and closes depending on humidity.

In the embodiment, a case was explained in which switches using temperature and humidity sensors were used, but switches using other sensors (for example, gas concentration, dew condensation, infrared rays) may be used.

This can be easily implemented by replacing a sensor (based on sound, etc.) with the electrical contact.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, automatic operation can be performed by sensing the target indoor atmosphere such as temperature and humidity with a simple switch, and there is no need to forget to turn off the ventilation fan. , it is possible to prevent people from forgetting to put it on, and it is also possible to provide appropriate ventilation even when the user is away from home.

[Brief explanation of the drawing]

Fig. 1 is an electrical circuit diagram of a ventilation switch according to an embodiment of the present invention, Fig. 2 is an installation diagram of the ventilation switch, Fig. 3 is a front view of the ventilation switch, and Fig. 4 is the A--A of Fig. 3. A sectional view,
FIG. 6 is an electrical circuit diagram of a conventional ventilation switch, and FIG. 6 is an installation diagram of the ventilation switch. 3... Electric contact, 4... Switching element, 7... Ventilation fan, 8... Power supply.

Claims (1)

[Claims] A circuit is provided that connects a power supply in parallel to a switching element connected in series to the motor of the ventilation fan, and an electric contact that operates by sensing the indoor atmosphere such as temperature and humidity is connected to the gate pole of the switching element, and the circuit is activated. Ventilation switch to open and close.