JPS63187036A - Ventilation fan installed at window - Google Patents

Abstract

PURPOSE:To eliminate a mistake of leaving the window open and make it possible to conduct proper ventilation all the time by providing a microswitch with an actuating piece and make it possible to operate the switch only when a supply and discharge air port on the outdoor side is opened with the window open. CONSTITUTION:The main body 1 of a ventilation fan installed at a window is provided with a microswitch 3 in series with an operation switch 4. When a window 7 on the side of the outdoor 9 is closed, that is a supply and discharge air port 2 is closed by the window 7, an actuating piece 5 is turned to the side of the main body by the window 7, making the microswitch 3 open, and if an operation switch 4 is turned on, a blower 6 is not operated. On the contrary when the window 7 is open, that is the supply and discharge air port 2 on the outdoor side is not closed by the window 7, the microswitch 3 becomes closed and the blower 6 is operated with the operation switch 4 ON, because the actuating piece 5 is given a force which forces it in the direction at right angle to the direction of the movement of the window 7 by a spring built in the microswitch 3.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a window ventilation fan that can be easily attached to a window of an existing house or the like without drilling or the like for ventilation.

BACKGROUND OF THE INVENTION Conventionally, window ventilation fans that are attached to windows, etc. have often been attached so that the window can be opened and closed.

This window ventilation fan that can be opened and closed is shown in FIGS. 5 and 6, and in the figures, 100 is the main body of the window ventilation fan.
It has an outdoor air supply/exhaust port 101 on its back side. The window ventilation fan main body 100 is mounted with a mounting frame 1 on a rail 109 on the indoor 108 side of a window frame 103 in which a window 107 is housed so as to be openable and closable.
04. It is attached by the lower plate 105, and the attachment is completed by fitting the panel 106 into the gap. Further, the window ventilation fan main body 100 is attached so that a window 107 can be opened and closed. Note that 110 in the figure indicates the outdoors.

Problems to be Solved by the Invention In the emergency ventilation fan installed as described above, when ventilation is to be performed, the window ventilation fan is turned on each time, and the window 107 is opened by the outdoor air supply/exhaust port 101 in a predetermined manner. If you leave the window 107 closed and forget to open it, and manually turn on the emergency ventilation fan switch, it will still operate, but the problem is that it will not be able to perform its original function of normal ventilation. Ta.

The present invention takes into consideration the above-mentioned conventional problems, and includes a device that prevents people from forgetting to open the window, which does not operate even if a person turns the switch on the window ventilation fan unless the window is opened to a predetermined position where the outdoor air supply/exhaust port opens. The purpose of the present invention is to provide a window ventilation fan with a

Means for Solving the Problem In order to solve this problem, the present invention has a blower installed in a Z frame to which a window is attached so that it can be opened and closed, and an outdoor supply/exhaust port communicating with the blower. In the window ventilation fan body,
A microswitch is connected to the power source in series with the blower and has a normally closed contact, and the microswitch is provided with an actuating piece that normally protrudes perpendicular to the direction of movement of the window and comes into contact with it when the window is closed. This is a window ventilation fan made of

With this configuration, if the outdoor air supply/exhaust port of the window ventilation fan is blocked by a window, the operating piece of the microswitch is knocked down to open the power circuit, and the window ventilation fan can be operated by pressing the operation switch. If the vehicle is not operated by anyone, but if the window is opened and the outdoor air supply/exhaust port is opened, the actuating piece of the microswitch will protrude perpendicular to the direction of movement of the window, and the contact will be closed. Then, if you turn the operation switch to the human position, the window ventilation fan will start operating.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. In the figure, 1 is the main body of a window ventilation fan, which is equipped with a blower 6, an operation switch 4 for operating the blower 6, and an outdoor supply/exhaust port 2, and is attached to the indoor rail 11 on the indoor side 1o on the window frame 8. It is attached by a frame 12 and a plate 13, and the attachment is completed by fitting the panel 14 into the gap. The window ventilation fan main body 1 is mounted so that the window 7 on the outdoor side rail 15 on the outdoor side 9 can be opened and closed. Further, the window ventilation fan main body 1 is provided with a microswitch 3 connected to a power source in series with the operation switch 4. The microswitch 3 is located near the outdoor air supply/exhaust port 2 of the window ventilation fan main body 1, and has a normally closed contact and an actuation piece 5 that turns on and off the normally closed contact, and the actuation piece 5 is a microswitch. The spring built into window 3 keeps window 7 open.
A holding force is applied in a direction perpendicular to the direction of movement. In the above configuration, when the window 7 on the outdoor side 9 is closed, that is, when the outdoor air supply/exhaust port 2 is closed by the window 7, as shown in FIG.
is tilted toward the main body side by the window 7, the microswitch 3 becomes non-conductive, and even if the operation switch 4 is turned on, the blower 6 is not operated. Conversely, when the window 7 is open, that is, when the outdoor air supply/exhaust port 2 is no longer closed by the window 7, the actuating piece 6 is moved by the spring built into the microswitch 3 to close the window 7. Since the force is applied in a direction perpendicular to the moving direction of the microswitch 7, the microswitch 3 becomes conductive, and the operation switch 4 is turned to O.
If N is selected, the blower 6 will be operated.

As described above, according to this embodiment, the window ventilation fan main body 1 does not operate when the outdoor air supply/exhaust port 2 is closed by the window 7 on the side (9), and operates only when it is opened. Therefore, even if the operation switch 4 is turned on, it will only operate when the window 7 is open, that is, when the outdoor f!! It does not operate outside of the above conditions, so you will not forget to open the window 7, and you will always be able to have normal ventilation.

Effects of the InventionAs is clear from the explanation of the embodiments above, the present invention has the advantage that, whereas conventionally it was possible to drive even with the windows closed,
By configuring the system so that it can only be operated when the window is opened and the outdoor air supply/exhaust port is open, there is no need to forget to open the window9, and normal ventilation can be achieved at all times. is obtained.

[Brief Description of the Drawings] Fig. 1 is a sectional view showing a window ventilation fan according to an embodiment of the present invention when the window is open, Fig. 2 is a top plan view showing the window when the window is closed, and Fig. 3 is a cross-sectional view showing the window ventilation fan according to an embodiment of the present invention. FIG. 4 is a front view of the indoor side showing how the ventilation fan is installed, FIG. 4 is a front view of the outside of the room showing how the conventional window ventilation fan is installed, and FIG. 5 is a side view of the same. 1...Window ventilation fan body, 2...Outdoor air supply/exhaust port, 3...Micro switch, 4...
Operation switch, 5...operating piece, 6...blower, 7...window, 8...window frame. Name of agent: Patent attorney Toshio Nakao and 1 other person
Figure 4 Figure 5

Claims (1)

[Claims] A window ventilation fan body has a blower installed on a window frame on which a window is attached so that it can be opened and closed, and an outdoor air supply/exhaust port communicating with the blower, and a normally closed contact is connected to a power source in series with the blower. A ventilation fan for a window, the microswitch being provided with an actuating piece that normally protrudes perpendicular to the direction of movement of the window and comes into contact with it when the window is closed.