JPH01263446A - Ventilation device - Google Patents

Abstract

PURPOSE:To enable a sufficient ventilation function to be attained by a method wherein in the case that a humidity sensor switch placed inside a room is operated and another humidity sensor switch placed outside the room is not operated, a ventilation fan is operated, and in turn when a humidity outside the room is high and the humidity sensor switch placed outside the room is operated, the ventilation fan is stopped. CONSTITUTION:In the case that a humidity sensor switch 4 placed inside a room is operated and another humidity sensor switch 5 placed outside the room is not operated, i.e. an interior humidity is higher than an outside humidity, a ventilation fan 3 is automatically operated. In turn, when the outside humidity sensor switch 5 is being operated, i.e. the outside humidity is higher than a set value, the ventilation fan 3 is stopped. Then, the operating humidities of the inside and outside humidity sensor switches 4 and 5 are set at the same value and a detection of the inside and outside humidities corresponding to this set value is carried out within a humidity operating range of ON point and OFF point. If this humidity operating range is 10%RH or so, the inside and outside humidity sensor switches 4 and 5 show a stable operation and then the ventilation function can be sufficiently realized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ventilation system that automatically operates a ventilation fan using a humidity sensor switch.

BACKGROUND OF THE INVENTION Conventionally, this type of ventilation system has been constructed as shown in FIGS. 4 and 5. That is, a ventilation fan 102 was connected to a commercial power source 103 via a humidity sensor switch 101 and attached to a wall surface of a house 1002-7. When the indoor humidity exceeds the humidity setting of the humidity sensor switch 101, the ventilation fan 102 is automatically operated.

Problems to be Solved by the Invention In such a conventional configuration, the humidity sensor switch 101
There is no problem in terms of automatic operation, but since the humidity detection method is based on relative humidity, it is difficult to operate not only when indoor humidity is high, but also when outdoor humidity is high, or at night. There were cases where the relative humidity increased due to the temperature drop and the vehicle continued to be operated, making the noise and cold feel uncomfortable. The present invention solves these problems, and aims to provide a ventilation system that stops operating when the outdoor humidity is high even when the indoor humidity is high.

Means for Solving the Problem In order to solve this problem, the present invention provides a ventilation fan for indoor ventilation, a humidity sensor switch 3/\- switch provided on the indoor side, and a humidity sensor switch provided on the outdoor side. have,
The operating temperatures of the indoor humidity sensor switch and the outdoor humidity sensor switch are made the same, and the operating contact of the 3-way contact of the indoor humidity sensor switch and the non-operating contact of the 3-way contact of the outdoor humidity sensor switch are connected. A ventilation device is constructed by connecting the humidity sensor switches on the indoor side and the outdoor side and the ventilation fan in series.

Function: With this configuration, the ventilation fan is operated only when the humidity sensor switch on the indoor side is activated and the humidity sensor switch on the outdoor side is not activated. If the switch operates, the ventilation fan will stop.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 3.

In FIG. 1, indoor air is ventilated by a ventilation fan 3 attached to a wall 2 of a house. The indoor humidity sensor switch 4 attached to the indoor wall and the outdoor humidity sensor switch 5 attached to the outdoor wall are configured to have three contacts, as shown in FIG. The operating contact 4a of the sensor switch 4 and the non-operating contact 5a of the outdoor humidity sensor switch 6 are connected, and a series circuit in which the ventilation fan 3 is connected is connected to the commercial power source 6 to form an electric circuit. In addition, the indoor and outdoor humidity sensor switches 4 and 5
The operating points of are set to be the same.

In the above configuration, when the indoor humidity sensor switch 4 is activated and the outdoor humidity sensor switch 5 is not activated, that is, when the indoor humidity is higher than the outdoor humidity, the ventilation fan 3 is automatically operated. - On the other hand, when the outdoor humidity sensor switch 5 is operating, that is, when the outdoor humidity is higher than the set value, the ventilation fan 3 is stopped.

Next, Fig. 3 shows an operation diagram of the indoor and outdoor humidity sensor switches 4 and 6, but the operating humidity of each is set to be the same, and the detection of indoor and outdoor humidity is still ON for this set value. This is done within the humidity operating range of the OFF point and OFF point. In addition, if this humidity 51\-2 degree operation width is set to about 10%RH, the indoor and outdoor humidity sensor switches 4 and 5 will operate stably and can fully exhibit their ventilation function.

As is clear from the description of the embodiments above, according to the present invention, ventilation can be performed when the indoor humidity is higher than the outdoor humidity. It is possible to stop the ventilation fan even when the temperature is low, and there is no need to change the humidity setting again at night, so you can eliminate the discomfort caused by noise and cold at night. can be done efficiently, so the effect of fully demonstrating the ventilation function can be obtained.

[Brief explanation of the drawing]

Fig. 1 is an installation diagram showing a ventilation system according to an embodiment of the present invention, Fig. 2 is an electric circuit diagram of the ventilation system, Fig. 3 is an operation diagram of the humidity sensor switch of the ventilation system, and Fig. 4 is a conventional one. Figure 5 is an electrical circuit diagram of the ventilation system. 6,,-,. 3...Ventilation fan, 4...Indoor humidity sensor switch, 4a...Operation contact, 5...-Outdoor humidity sensor switch, 5a...Non-operation contact. Name of agent: Patent attorney Toshio Nakao and 1 other person Q) Ward 0 Ba)

Claims (1)

[Claims] It has a ventilation fan for indoor ventilation, a humidity sensor switch provided on the indoor side, and a humidity sensor switch provided on the outdoor side, and the operating temperature of the humidity sensor switch on the indoor side and the outdoor side is made the same, and Indoor humidity sensor switch 3
3 of the operating contact of the road contact and the outdoor humidity sensor switch.
A ventilating device comprising a non-operating contact of a road contact and a humidity sensor switch on the indoor side and an outdoor side and the ventilation fan connected in series.