JPS6236018Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a mounting frame for a ventilation fan that is fitted into a ventilation hole in an outer wall or the like.

For houses with conventionally well-sealed interiors and exteriors,
A ventilation fan is attached to the outer wall that closes off the indoor and outdoor areas, and an outside air intake is formed separately from this ventilation fan.
It is common to draw fresh air from outside into the building to provide natural ventilation.

In addition, in order to bring outside air indoors, for example,
- As shown in Publication No. 164433, air vents for taking in outside air are formed in the main body casing of the ventilation fan itself, which is inserted into ventilation holes in external walls, etc., and contaminated air is discharged from the indoor side of the ventilation fan. Additionally, a device has been proposed in which fresh outside air is taken into the room through an air hole formed in the main casing itself.

However, forming a separate outside air intake in addition to the ventilation fan installed on the exterior wall described above is costly and laborious. If the ventilation fan is formed on the main body casing itself, the construction of the main body casing that houses the ventilation fan becomes complicated, making it difficult to manufacture, making it impossible to use existing ventilation fans, and making it expensive. There was a problem with getting used to it.

This idea was made in order to solve the above problems, and it is possible to use the existing ventilation fan without forming a separate outside air intake other than the ventilation hole for installing the ventilation fan on the outside wall, and it is possible to use the outside air intake. To provide a mounting frame for a ventilation fan that can be easily installed.

The ventilation fan mounting frame of this invention has an outside air intake hole at the top that communicates indoors and outdoors, and below this outside air intake hole is the ventilation fan installation hole into which the main body casing of the ventilation fan with a built-in blower is inserted and supported. At the same time, on the indoor front of the partition wall that separates the outdoor air intake hole and the ventilation fan mounting hole, a cover to prevent mixing of intake and exhaust flows is provided near the outdoor air supply port on the indoor side of the outdoor air intake hole. A stepped portion is formed for fastening the base end portion together with the flange of the main body casing.

This idea uses an outside air intake hole in the mounting frame and a mixing prevention cover installed near the outside air supply port on the indoor side of this outside air intake hole to prevent contaminated air from being exhausted from the indoor side by the ventilation fan. , mixing with fresh air from the outside is partitioned, and fresh outside air can be supplied indoors with efficient natural ventilation without being contaminated by directly mixing the incoming outside air with the indoor exhaust flow. . In addition, the proximal end of the mixing prevention cover and the upper flange of the main body casing are overlapped and tightened together at the stepped part formed on the mounting frame. Since the mounting heights of the upper and lower flanges are approximately horizontal, the front oil receiver mounted on the front of the main body casing can be mounted without wobbling.

An embodiment of this invention will be described below with reference to FIGS. 1 to 3.

Figure 1 shows a ventilation fan attached to the mounting frame of this invention.
FIG. 2 is a longitudinal sectional side view of the mounting frame fixed to the outer wall, FIG. 2 is a perspective view of the mounting frame, and FIG. 3 is a perspective view of the mixing prevention cover. In the diagram, A is a ventilation fan.
This ventilation fan A includes a cylindrical main body casing 1, a blower 2 installed in the casing 1, a front oil pan 3 installed so as to surround the impeller 2a of the blower 2, and a mounting fixed to the main body casing 1. leg 4
It consists of an impeller 2a drive motor 2b fixed to the main body casing 1, and a shutter 5 fixed to the outdoor side of the main body casing 1. Reference numeral 6 indicates a mounting screw for fixing the main body casing 1 to a mounting frame 8 integrally formed of wood or plastic, which is inserted into a ventilation hole 7a of the outer wall 7, and 9 indicates an outside air intake provided at the top of the mounting frame 8. The intake hole 10 is an intake/exhaust hole provided near the indoor outside air supply port 9a of the intake hole 9 so as to prevent the outside air that entered through this mounting hole 9 from being directly discharged from the room along with the exhaust flow. This is a mixing prevention cover that prevents mixing of flows. Further, reference numeral 8a denotes a stepped portion, and this stepped portion 8a is located on the indoor front side of the partition wall 8c that partitions the outside air intake hole 9 of the mounting frame 8 and the ventilation fan mounting hole 8b into which the outer periphery of the main body casing 1 is inserted and fixed. It was formed.

Note that 10a is the base end of the mixing prevention cover, and 1a is the flange of the main body casing 1.

According to the ventilation fan mounting frame according to the embodiment of this invention configured as described above, the base end 10a of the mixing prevention cover 10 is arranged at the stepped portion 8a of the mounting frame 8, and then the blower 2 etc. are built in. The main body casing 1 in the ventilation fan is inserted and supported into the ventilation fan mounting hole 8b of the mounting frame 1, and the upper flange 1a of the main body casing 1 is inserted and supported.
are superimposed on the base end 10a of the mixing prevention cover 10 and tightened together with the mounting screws 6, and the lower flange 1a is similarly tightened and fixed to the lower part of the mounting frame 8 with the mounting screws 6. Thereafter, by engaging the front oil pan 3 with the flange 1a of the main body case 1, the ventilation fan A is inserted and supported in the mounting frame 8, and the mounting frame 8 is connected to the ventilation hole provided in the outer wall 7 that closes the indoor and outdoor areas. 7a to complete the hemming work.

Therefore, according to the embodiment of this invention, by simply attaching a ventilation fan to a mounting frame and inserting and fixing this mounting frame into a ventilation hole provided on an outer wall, etc., a natural ventilation opening for the room can be secured, and this ventilation opening This allows fresh outside air to be supplied indoors in an efficient natural ventilation state without being contaminated by directly mixing the intake air from the room with the exhaust flow from the room.

As explained above, according to the ventilation fan mounting frame of this invention, the outside air intake hole is formed in the upper part, and the ventilation fan mounting hole for fitting and supporting the ventilation fan is provided below the outside air intake hole. This is because a stepped portion is formed on the indoor front of the partition wall that separates the intake hole and the ventilation fan mounting hole to allow the base end of the intake/exhaust flow mixing prevention cover to be fastened together with the flange of the main body casing. , It is possible to take in fresh air indoors from the outside air intake hole of the mounting frame, and
The cover that prevents mixing of intake and exhaust flows allows efficient natural ventilation to be maintained without mixing the indoor exhaust flow with outdoor air. In addition, the base end of the intake/exhaust flow mixing prevention cover is positioned on the step formed in the mounting frame, and the upper flange of the main body casing can be overlapped with this upper surface and tightened together, making installation extremely easy. It's easy to do, and
Since the mounting heights of the upper and lower flanges are approximately horizontal, the front oil receiver that is mounted on the front of the main body casing can be mounted without wobbling. In addition, when installing a ventilation fan on an exterior wall, the ventilation fan can be fixed to a mounting frame on the ground and then attached to the exterior wall, making it easy to work, safe, and extremely quick. be. Furthermore, a conventional ventilation fan without an outside air intake can be used as one with an outside air intake by simply making the ventilation hole in the outer wall slightly larger and inserting and fixing the mounting frame. This provides excellent practical effects.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an embodiment of the ventilation fan of the present invention, FIG. 2 is a perspective view of a ventilation fan mounting frame, and FIG. 3 is a perspective view of a cover for preventing mixing of intake and exhaust flows. A... Ventilation fan, 1... Body casing, 2...
Blower, 7...Outer wall, 7a...Ventilation hole, 8...Mounting frame, 9...Outside air intake hole, 9a...Indoor outside air supply port, 10...Intake/exhaust mixture prevention cover. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] It has an outside air intake hole on the top that connects the indoor and outdoor areas.
A ventilation fan mounting hole into which the main body casing of the ventilation fan is inserted and supported is provided below this outside air intake hole, and
A stepped portion is formed on the front face of the partition wall that separates the outside air intake hole and the ventilation fan mounting hole to fasten together the base end of the intake/exhaust flow mixing prevention cover and the upper flange of the main body casing. Features a mounting frame for ventilation fans.