JPS6039696Y2 - ventilation fan - Google Patents

Description

[Detailed description of the invention] This invention relates to a ventilation fan, particularly a ventilation fan that performs forced simultaneous supply and exhaust.

The general configuration of a conventional ventilation fan of this type is shown in Figure 1a.

Shown in b and c.

In each of these figures, 1 is the main body casing of the ventilation fan, 2 is a motor that is built in and fixed in the center of this main casing 1 and has a pair of motor shafts 2a and 2b protruding from the left and right sides, and 3 and 4 are the main body casing. A pair of air supply and exhaust fans 5 and 6 are arranged on the left and right sides of the body 1, separated from each other by appropriate partition plates, etc., and attached to the motor shafts 2a and 2b, respectively. The air supply and exhaust air paths 7 and 8 are formed in the air paths 5 and 6, respectively.
Indoor air supply and exhaust grilles formed in 9 and 1
Similarly, 0 is an air supply and exhaust port to the outdoors.

Therefore, in the conventional configuration, by driving the motor 2, a pair of air supply and exhaust fans 3.4 are simultaneously rotated, and on the side of the air supply fan 3, outdoor air is supplied to the air supply port 9.
On the exhaust fan 4 side, indoor air is supplied from the exhaust grill 8 to the exhaust port 10.
It is then exhausted outdoors.

In other words, it performs the so-called forced simultaneous supply and exhaust function, but in this case, it is generally difficult to use in winter because cold air from outside flows into the room on the air supply side and lowers the room temperature. There was an inconvenience.

In view of the above-mentioned conventional circumstances, this invention is an attempt to improve the use of the ventilation fan so that it can be used even in winter by adding new mechanical features to the ventilation fan.

Below, we will explain the second embodiment of the ventilation fan according to this invention.
This will be explained in detail with reference to FIGS. a, b, c to 4.

In these FIGS. 2a, b, and c, the same reference numerals as those in FIGS. 11 is the air supply port 9 of the main body case 1 and the air supply fan 3
A single air supply shutter 13 is rotatably attached to the main body casing 1 to open and close the air supply port 9 and the circulation port 11. Mouth 1
2 is provided on the lower surface of the main body casing 1 between the exhaust port 10 and the exhaust fan 4, and one exhaust shutter 14 for opening and closing the exhaust port 10 and the circulation port 12 can be interlocked with the air supply shutter 13. This is the one attached to 1.

In this exemplary embodiment, therefore, the respective air supply and exhaust air shutter 13.14 closes the respective air inlet 11.12 and thereby opens the respective air inlet and exhaust air outlet 9,10. When the configuration shown in Fig. 3 is adopted, it is similar to the conventional example shown in Fig. 1 above, and by driving the motor 2, forced simultaneous supply and exhaust can be performed between indoors and outdoors, and then When the air supply and exhaust shutters 13.14 close the respective air supply and exhaust ports 9, 10 and thereby open the respective flow ports 11.12, and the configuration shown in FIG. 4 is achieved, the motor 2, on the air supply fan 3 side, indoor air is taken in through the distribution port 11 and discharged into the same room through the air supply grill 7, and on the exhaust fan 4 side, indoor air is taken in into the exhaust grill 8. Then, it is discharged into the same room from the distribution port 12 in the same way.

In other words, in addition to being able to perform the so-called circulation effect, if the motor 2 is stopped in this state, it can be used indoors or
These interlocking shutters 13,
14 and the motor 2 are also easily connected.

As detailed above, according to this invention, in a ventilation fan that has a pair of air supply and exhaust fans driven by the same motor to perform forced simultaneous air supply and exhaust, Indoor air circulation ports are opened on each side of the air supply and exhaust ports in the air passage, and these air supply and exhaust ports are opened and closed by mutually interlocking air supply and exhaust shutters. Because of this, in addition to the forced simultaneous supply and exhaust functions as in the past, the air supply and exhaust ports can be blocked when not in use, making it possible to prevent dust from entering from outside, for example. It also has the ability to circulate indoor air, and with the addition of a small amount of mechanism, its uses can be expanded, making it usable in winter. It is something that you have.

[Brief explanation of the drawing]

Figures 1a, b, and c are front views and cross-sectional views of the air supply and exhaust sides showing the general configuration of a conventional forced simultaneous supply and exhaust ventilation fan, and Figures 2a, b, and c are views of one example of this invention. A front view, an air supply side and an exhaust side sectional view, and FIGS. 3 and 4 are explanatory diagrams showing an example of the usage state of the ventilation fan to which the embodiment is applied. 1...Main body housing, 2...Motor, 3
and 4... air supply and exhaust fan, 5 and 6... air supply and exhaust air path, 7 and 8...
...Air supply and exhaust grilles, 9 and 10...
- Air supply and exhaust ports, 11 and 12...Air supply and exhaust flow ports, 13 and 14...Air supply and exhaust shutters.

Claims (1)

[Scope of utility model registration request] A pair of left and right air supply and exhaust fans that are rotationally driven by a single motor are built into the main body housing, and an air supply air path is formed on the air supply fan side with an air supply vent and an air supply grille from the outdoors to the indoors. and form an exhaust air path on the exhaust fan side with an exhaust grill from indoors and an exhaust port to the outdoors,
A ventilation fan that performs forced simultaneous air supply and exhaust by rotating the air supply and exhaust fans in a predetermined direction by a motor,
A distribution port having substantially the same opening shape as the air supply port is provided on a surface between the air supply port and the exhaust fan on the indoor side of the main body casing, and a single air supply shutter that opens and closes between the air supply port and the distribution port is provided. It is rotatably attached to the main body casing, and a distribution port having almost the same opening shape as the exhaust port is provided on the surface between the exhaust port and the exhaust fan on the indoor side of the main body casing, and the exhaust port and the circulation port are opened and closed. A ventilation fan characterized in that one exhaust shutter is attached to a main body housing so as to be rotatable with respect to the air supply shutter, so that the air supply shutter and the exhaust shutter are opened and closed in the same state.