JPH0519695Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is mainly installed on the ceiling of a living room,
This relates to a duct ventilation fan that is connected to a duct installed in the ceiling and exchanges air in a living room.

2. Description of the Related Art Conventional ventilation fans for ducts of this type generally have a configuration as shown in FIGS. 3 and 4. That is, a box-shaped main body 101 having a suction port 102 on the lower surface and a main body discharge port 103 opened on one side, disposed within this main body 101, and incorporating a blade 104,
a ventilation casing 108 in which a groove 107 is formed around the discharge port 105 to fit into the open end 106 forming the main body discharge port 103;
1, and a decorative panel 110 that covers the suction port 102 of the main body 101 from the indoor side.

Problems that the invention attempts to solve In such a conventional configuration, the blower casing 1
08 from the main body 101 for repairs etc., the opening end 106 of the main body outlet 103 and the groove 10 around the outlet 105 of the ventilation casing 108
7 and pulled out downward from the suction port 102. At this time, the open end 106
Discharge port 10 of the blower casing 108 in the lower corner of
5. The surrounding area gets caught, especially the blower casing 1.
Since the blower casing 108 is generally made of resin, the blower casing 108 gets wedged in the corner of the opening end 106, resulting in extremely poor workability.

The present invention is intended to solve these problems, and aims to provide a duct ventilation fan whose ventilation casing can be easily removed from the main body for repairs or the like.

Means for Solving the Problem In order to solve this problem, the present invention includes a box-shaped main body having a suction port on the lower surface and a main body discharge port on one side, and a box-shaped main body having a built-in blade disposed inside the main body and a discharge port. A ventilation sheath having grooves that fit into at least both sides of the opening end forming the main body discharge port around the outlet, excluding one lower end, and a ventilation sheath provided on one side of the main body in communication with the main body discharge port. The opening end portion forming the main body discharge port has one lower end inclined toward the outside of the main body to constitute a duct ventilation fan.

Effect: With this configuration, one end of the opening end forming the main body discharge port, that is, the lower end, is inclined toward the outside, where the peripheral part of the discharge port of the blower casing hits when the blower casing is separated from the main body and taken out. Therefore, the peripheral portion of the discharge port slopes downward along one lower end of the opening end, so that the blower casing can be easily taken out from the main body without getting caught.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, 1 is a box-shaped main body having a suction port 2 on the lower surface and a main body discharge port 3 opened on one side.A blade 4 is built into the main body 1, and the main body discharge port 3 is arranged around the discharge port 5. A blower casing 8 having a groove 7 formed therein is disposed so as to fit into the open end 6 forming the opening end 6 except for one lower end 6a. A duct connecting portion 9 is provided on one outer side surface of the main body 1 in communication with the main body discharge port 3. The suction port 2 of the main body 1 is covered with a decorative panel 10 from the indoor side. And the main body outlet 3
The lower end 6a of the open end 6 forming the main body 1
It is slanted outward.

In the above configuration, when the blower casing 8 is installed inside the main body 1, as shown in FIG. 6d, and with the grooves 7 fitted to both ends 6b of the open end 6, push up, and stop when the grooves 7 fit into the upper end 6c of the open end 6. Then, the blower casing 8 is fixed to the main body 1 by well-known means, and the work is completed. On the other hand, when separating and removing the blower casing 8 from the main body 1, the procedure can be reversed to the above, but at that time, the groove 7 moves along both sides 6b of the opening end 6, and the groove The lower part 7a of the opening end 6 hits the lower end 6a of the opening end 6, and since the lower end 6a is inclined toward the outside of the main body 1, it can be easily and reliably removed without getting caught. Become.

In the embodiment, a groove 7 is formed around the outlet of the blower casing 8 to fit into both side edges 6b excluding the lower end 6a and the upper end 6c of the open end 6 forming the main body outlet 3. However, as long as the groove portion 7 has at least a portion that moves along both side edges 6b of the opening end portion 6 when the blower casing 8 is attached or detached, the groove portion 7 can be formed even if there is no fitting portion on the upper end 6c. However, there is no difference in the essential operation and effect of the present invention.

Effects of the Invention As is clear from the description of the embodiments above, according to the present invention, by tilting the lower end of the opening end forming the main body outlet toward the outside of the main body, the blower casing can be separated from the main body and taken out. At this time, the discharge port of the blower casing is no longer caught in the open end, and the blower casing can be separated and taken out easily and reliably.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of a duct fan according to one embodiment of the present invention, Fig. 2 is a partial detailed view of the main body outlet of the duct fan, Fig. 3 is a cross-sectional view of a conventional duct fan, and Fig. 4 is a partial detailed view of the main body outlet of the duct fan. 1...Main body, 2...Suction port, 3...Main body outlet, 4...Blade, 5...Outlet, 6...Open end, 6a...Lower end, 7...Groove, 8...Ventilation casing, 9...Duct connection part.

Claims (1)

[Scope of utility model registration request] A box-shaped main body 1 having a suction port 2 on the lower surface and a main body discharge port 3 on one side, and an opening disposed inside the main body 1 that has a built-in blade 4 and forms the main body discharge port 3 around the discharge port 5. A ventilation casing 8 in which a groove 7 is formed to fit into at least both side ends 6b of the end 6 excluding one lower end 6a, and a duct connection part provided on one side of the main body 1 in communication with the main body discharge port 3. 9, the opening end 6 forming the main body discharge port 3 has one lower end 6a inclined toward the outside of the main body 1.