JP2595404Y2 - Underfloor forced ventilation fan device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an underfloor forced-ventilation fan device, and more particularly, to a ventilation device at an appropriate position away from a vent formed in an outer frame portion for high-humidity underfloor ventilation. The present invention relates to an underfloor ventilation device which is provided and can blow air to every corner under the floor by the blower, and relates to an underfloor forced ventilation fan device.

[0002]

2. Description of the Related Art A conventional under-floor ventilator is provided with a ventilator at a portion of an air vent formed by a natural ventilation type ventilating method, and in particular, air inside the under-floor is discharged to the outside. In that case, relatively warm air was introduced from the south side vent into the inside of the floor under the same method as in the natural ventilation system, but it was necessary to provide even stronger ventilation. For that purpose, the air inside the floor under the floor is forcibly discharged to the outside by the ventilator from the vent on the north side. In any case, due to the nature of the fluid, the air will collect and flow at the closest point between the southern and northern vents, forming a flow path, and at a distance from it, the movement of the air will effectively be Since this does not occur, there has been a problem that air stagnates for a long time, particularly at the corners. As a result, moisture was trapped there, causing the foundation to rot.

[0003]

In the present invention, air stagnated in four corners is diffused and flowed by an air diffusion forced under-floor fan disposed at the center of the internal space under the floor or at another appropriate position. The first task is to forcibly exhaust air and to promote ventilation to every corner under the floor. A second object of the present invention is to achieve the object of the present invention by attaching the air diffusion rotary fan to a joist located at the center of the internal space under the floor or at another appropriate position.

[0004]

According to the present invention, an air diffusion rotary fan 6 is mounted on a joist 7 located at the center of the internal space under the floor or at another appropriate position. The underfloor ventilation fan 5 provided separately is attached to the exhaust port 4 so that the air sucked into the ventilation port 3 provided on the opposite side flows toward the exhaust port 4. The air stagnated in the four corners is diffused and made to flow, and is guided toward the underfloor ventilation fan 5 for exhaust, and the stagnant air is forcibly exhausted from the exhaust port 4 to encourage underfloor ventilation. The rotary fan 6 for air diffusion is mounted on the joist 7 with mounting screws 8 so that the joist 7 is sandwiched by the housing 9, and the lower end flat portion 10 of the housing 9 and a fan attached therebelow. Cover 1 Screw 13 stop and the upper portion 12 of the
And a motor 14 is fitted into the upper part of the space formed by the housing 9 and the fan cover 11.
4 to the upper surface 12 of the fan cover 11.
The fan portion 17 of the air diffusion rotary fan 6 is fixed by a nut 18 at the lower end portion of the downward vertical rotation shaft 16 of the motor 14 by being supported by the inner peripheral surface portion of the motor 14 so as not to fall downward. 11 is an underfloor forced-ventilation fan device in which a blowout portion 19 is formed on a side surface of the fan 11.

[0005]

According to the present invention, an air diffusion rotary fan 6 is mounted on a joist 7 located at the center of the internal space under the floor or at another appropriate position, and the exhaust fan provided separately from the air diffusion rotary fan 6 is provided. Attach the underfloor ventilation fan 5 to the exhaust port 4,
The air sucked into the ventilation port 3 provided on the opposite side is caused to flow toward the exhaust port 4, and the air stagnating at the four corners is diffused and flown by the air diffusion rotary fan 6, and the air is discharged under the floor. It is an underfloor forced-ventilation fan device that guides toward the ventilation fan 5 and forcibly exhausts the stagnant air from the exhaust port 4 to promote underfloor ventilation. Diffuses and flows, forcing the air to be exhausted, thereby promoting underfloor ventilation. The underfloor ventilation fan device using the blower according to the present invention is not mounted only on the ventilation hole as in the conventional case, but is mounted on the joist 7 located at an appropriate position inside the outer frame portion of the underfloor foundation. In particular, the air stagnating in the four corners is diffused and flowed, guided toward the exhaust underfloor ventilation fan 5, and the stagnant air is forcibly exhausted from the exhaust port 4.
It can encourage underfloor ventilation. In addition, since the installation is simple, an appropriate number and number of the air blowers can be easily installed in appropriate places even under the floor having different sizes and shapes of the working space.

[0006]

FIG. 1 is a horizontal sectional view of an underfloor forced-ventilation fan device of the present invention, and FIG. 2 is a vertical sectional view of a single unit of a ventilation fan of an underfloor forced-ventilation fan device of the present invention. It is. In the present invention, as shown in FIG. 1, a ventilation port 3 is formed at a desired position of a surrounding wall 1 and a partition frame wall 2 which form an internal space under the floor, and the ventilation port 3 on the south side mainly serves as a ventilation port for inhalation. An exhaust underfloor ventilation fan 5 provided separately from the air diffusion rotary fan 6 of the present invention is attached to the north side exhaust port 4. A rotary fan 6 for air diffusion according to the present invention is mounted on a large or joist 7 located at an appropriate position inside the outer frame portion of the underfloor foundation near the exhaust underfloor ventilation fan 5, and on the other side. The air sucked from the ventilation port 3 provided in the airflow is made to flow toward the exhaust port 4, and the air stagnated at the four corners is diffused and flowed by the rotary fan 6 for air diffusion, and the air is blown toward the underfloor ventilation fan 5. This is an underfloor forced-ventilation fan device configured to guide and stagnant air to be forcibly exhausted from the exhaust port 4 to promote underfloor ventilation.
According to the present invention, an air diffusion rotary fan 6 is mounted on a joist 7 located at the center of the internal space under the floor or at another appropriate position, and an underfloor ventilation fan for exhaust provided separately from the rotary fan 6 for air diffusion. 5 is attached to the exhaust port 4 so that the air sucked into the vent port 3 provided on the opposite side flows toward the exhaust port 4, and the air stagnating at the four corners by the air diffusion rotary fan 6 is removed. The underfloor forced-ventilation fan device for diffusing, flowing, and guiding the air toward the exhaust underfloor ventilation fan 5 and forcibly exhausting the stagnant air from the exhaust port 4 to promote underfloor ventilation. Formula fan 6
Is mounted on the joist 7 with mounting screws 8 so that the joist 7 is sandwiched by the housing 9, and the lower end flat portion 10 of the housing 9 and the upper surface portion 1 of the fan cover 11 attached thereunder
2 is fixed by a set screw 13, and a motor 14 is fitted in an upper part of a space formed by the housing 9 and the fan cover 11. The fan portion 17 of the air diffusion rotary fan 6 is fixed by a nut 18 at the lower end of the downward vertical rotation shaft 16 of the motor 14 and blown out to the side surface of the fan cover 11. This is an underfloor forced-ventilation fan device having a part 19 formed therein. In the underfloor forced-ventilation fan device of the present invention, a rotary fan, which is a main component of the underfloor forced-ventilation fan device, is used as an air diffusion fan, and as an example, a rotary sirocco fan for air diffusion is used. (FIG. 2). Although a multi-blade sirocco fan is appropriate for increasing the air volume, the most appropriate fan must be selected depending on the shape of the space under the floor. However, a fan suitable for flowing air stagnating in the corners of the base wall 1 and the framing wall 2 under the floor and discharging the air to the outside is not limited to the sirocco fan but may be another type of fan. It goes without saying that it is good.

[0007]

According to the present invention, the air diffusion rotary fan 6 is mounted on the joist 7 located at the center of the internal space under the floor or at another appropriate position, and the exhaust fan provided separately from the air diffusion rotary fan 6 is provided. An underfloor ventilation fan 5 is attached to the exhaust port 4 so that the air sucked into the ventilation port 3 provided on the opposite side flows toward the exhaust port 4, and the air diffusion rotary fan 6 stagnates at the four corners. Diffuses and flows the air
The underfloor forced-ventilation fan device guides the exhaust air to the underfloor ventilation fan 5 and forcibly exhausts the stagnant air from the exhaust port 4 to promote underfloor ventilation. By exhausting the air, there is an effect that moisture under the floor is removed and decay of the xylem can be prevented. Further, since the air diffusion rotary fan 6 is attached to the joist 7 by the mounting screw 8 with the joist 7 sandwiched by the housing 9, the installation is easy, and the size and shape of the working space under the floor are different. There is an effect that an appropriate number and number of the air diffusion rotary fans 6 can be easily attached to an appropriate place.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of an underfloor space showing the positions of an underfloor forced-ventilation fan device and a sirocco fan according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which an air diffusion fan used in the underfloor forced-ventilation fan device of FIG. 1 is attached to a joist;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Enclosure wall 2 Section frame wall 3 Vent hole 4 Exhaust hole 5 Exhaust hole underfloor ventilation fan 6 Air diffusion sirocco fan 7 Joist 8 Mounting screw 9 Housing 10 Flat surface of housing 11 Fan cover 12 Upper surface of fan cover 13 Set screw 14 Motor 15 Flange 16 Motor vertical rotation axis 17 Sirocco fan fan 18 Nut 19 Blow-out part

Continuation of the front page (56) References JP-A-2-37240 (JP, A) JP-A-52-18050 (JP, A) JP-A-3-534 (JP, U) JP-A-3-34541 (JP , U) Japanese Utility Model 1-153440 (JP, U) Japanese Utility Model 1-172643 (JP, U) Japanese Utility Model 60-180940 (JP, U) Japanese Utility Model 1-175234 (JP, U) Japanese Utility Model 62-122250 (JP, U) Hira 2-44627 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) F24F 7/10

Claims (1)

(57) [Scope of request for utility model registration] 1. An air diffusion rotary fan 6 is mounted on a joist 7 located at the center of the internal space under the floor or at another appropriate position, and an underfloor ventilation for exhaust provided separately from the rotary fan 6 for air diffusion. A fan 5 is attached to the exhaust port 4 so that the air sucked into the ventilation port 3 provided on the opposite side flows toward the exhaust port 4, and the air stagnated at the four corners by the air diffusion rotary fan 6. A forced-ventilation fan device for underfloor that encourages ventilation under the floor by diffusing and flowing the air toward the underfloor ventilation fan 5 for exhaustion, and forcibly exhausting the stagnant air from the exhaust port 4 to promote ventilation under the floor. The rotary fan 6 is provided with mounting screws 8 such that the joist 7 is sandwiched by the housing 9.
The lower end flat portion 10 of the housing 9 and the upper surface portion 12 of the fan cover 11 attached thereunder are fixed to the joist 7 with set screws 13, and a space formed by the housing 9 and the fan cover 11. Motor 14 at the top of
The peripheral flange 15 of the motor 14 is supported by the inner peripheral surface of the upper surface 12 of the fan cover 11 so that the motor 14 is not disengaged downward. The underfloor forced-ventilation fan device in which the fan portion 17 of the air diffusion rotary fan 6 is fixed to the fan cover 11 and the blowout portion 19 is formed on the side surface of the fan cover 11.