JP3049321U - Building ventilation blower - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention aims to maintain a good cooling effect by forcibly ventilating the temperature and humidity of the ceiling s in summer. SOLUTION: A ventilation hole 2 is formed at an eccentric position of a disk 1,
An inner cylinder 3 is connected to the ventilation hole 2, an electric motor 4 is supported in the cylinder 3 through a ventilation gap t, and an output shaft 5 of the electric motor 4 is projected outward at an eccentric position of the disk 1, A small-diameter disk 6 is provided at the tip of the ', and a plurality of air-blowing blades 7 are provided on the outer periphery of the small-diameter disk 6 on the disk 1 side. The vane plate 7 and the guide plate 8 are covered with a semicircular plate 10 provided on the disk 1 and having an air blowing window 9 opened in the direction of air flow by the guide plate 8,
An outward check claw 11 is formed on the side surface of the cylinder 3 and a waterproof weir 12 is formed on the inner end of the cylinder 3.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a ceiling fan that forcibly discharges air from the ceiling in summer.

[0002]

[Prior art]

 Conventionally, the temperature and humidity behind the ceiling are high in summer, so the cooling effect is worse.Currently, there are ceiling ventilation holes and ceiling ventilation fans, but conventional ventilation fans need to be installed inside the ceiling. Installation work or installation work required a lot of labor and remodeling work.

[0003]

[Problems to be solved by the invention]

 It is an object of the present invention to install a forced ventilation system above the ceiling in a short time without much effort, to remove the warm and humid space above the ceiling, and to maintain a good cooling effect.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a ventilation hole at an eccentric position of a disk, connects an inner cylinder to the ventilation hole, supports a motor in the cylinder through a ventilation gap, and provides an output shaft of the motor. Is projected outward at the eccentric position of the disk, a small-diameter disk is provided at the tip of the protruding portion, and a plurality of air blowing blades are provided on the outer periphery of the small-diameter disk on the disk side. An air guide plate facing the outside of the cylinder is provided on the disk, and the vane plate and the guide plate are covered with a semi-circular plate having an air blow window opened in the direction of air flow by the guide plate. It consists of a ventilation blower for buildings that forms a check claw and a waterproof weir at the inner end of the cylinder.

[0005]

[Embodiment of the invention]

 A through-hole 14 communicating with the outside air is formed in the upper outer wall 13 of the suspended ceiling 12 ′ of the roof, a PVC short tube 15 is fitted and fixed in the through-hole 14, and the cylinder 3 is inserted into the short tube 15 from outdoors to indoors. The outer check valve 11 is inserted into the short cylinder 15 (see FIG. 1) until the inner edge 10 ″ provided on the outer peripheral flange 10 ′ of the semicircular plate 10 contacts the outer wall 13. The existing gallery will not be dislodged by being hooked on the inner peripheral surface of the existing １００100 mm).

In this state, when the electric motor 4 is started, the output shaft 5 rotates the small-diameter disk 6 and the blowing blade 7 in the direction of arrow a in FIG. Air is blown from the inside, and the air blows along the inner peripheral surface of the semicircular plate 10, hits the guide plate 8, changes its direction, and is taken out of the blower window 9 to the outside.

[0007]

【Example】

 A ventilation hole 2 is formed around the eccentric position of the disk 1. As shown in FIG. 2, a support rod 16 of the AC motor 4 is installed in the ventilation hole 2, and a semicircular portion orthogonal to the support rod 16 is opened 2 ′. The fixed blade plate 17 in the direction parallel to the diameter orthogonal to the direction is inclined so as to guide the air flow in the direction of the semicircular opening 2 '.

The AC motor 4 provided on the support rod 16 is fixed to the cylinder 3 connected to the inside of the ventilation hole 2 with a bolt 18 ′ through a ventilation gap t, and connects the output shaft 5 of the motor 4 to the disk 1. A small-diameter disk 6 is provided at the tip of the protruding portion 5 '.

On the outer periphery of the small-diameter disk 6, a large number of air-blowing blades 7 are formed on the side of the disk 1, and the air-blowing guide plate 8 facing the outside of the blade 7 is erected on the disk 1. The sirocco fan is formed by covering the small-diameter disk 6, the blade plate 7 and the guide plate 8 with a semicircular plate 10 having an air blowing window 9 opened in the direction of air flow by the guide plate 8.

As shown in FIG. 3, the ventilation window 9 has a plurality of long holes arranged side by side to prevent pests and other small animals from entering. Further, a plurality of outward check claws 11, 11 are cut out on the side surface of the cylinder 3 and an arc-shaped waterproof weir 12 is formed at the inner end of the cylinder 3.

3, 4, and 5, reference numerals 18 and 19 denote power cord insertion grooves from the outside, 20 denotes a power cord insertion groove from the inside, 21 denotes a stator of the electric motor 4, and 22 denotes a stator of the electric motor 4. The rotor unit, 23 in FIG. 1 is a boundary slab of the upper and lower floors of the roof or a square material behind the ceiling, and 24 is a suspension wire of the suspension ceiling 12 ′.

[0012]

[Effect of the invention]

 In this case, the inner cylinder is inserted and fitted into the through hole in the existing ceiling-side outer wall. It has the effect of maintaining the cooling effect well and prolongs the life of the house. In addition, the waterproof weir can reduce rainwater intrusion at the time of strong wind.

[Brief description of the drawings]

FIG. 1 is a side view showing an installation state of a building ventilation blower of the present invention.

FIG. 2 is a vertical sectional view taken along the line AA of FIG. 1;

FIG. 3 is a bottom view taken along the line BB of FIG. 1;

4 is a rear view of the blower of FIG. 3 as viewed from the inside.

FIG. 5 is a side view in a state where a semicircular plate is removed.

FIG. 6 is a vertical sectional side view taken along line CC of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Disc 2 Ventilation hole 3 Inner cylinder 4 Electric motor t Ventilation gap 5 Output shaft 5 'Projection 6 Small-diameter disk 7 Ventilation blade 8 Ventilation guide plate 9 Ventilation window 10 Semicircular plate 11 Outward non-return claw 12 Waterproof weir

Claims (1)

[Utility model registration claims] 1. A ventilation hole is formed at an eccentric position of a disk, an inner cylinder is connected to the ventilation hole, an electric motor is supported in the cylinder through a ventilation gap, and an output shaft of the motor is connected to the disk. The eccentric position protrudes outward, a small-diameter disk is provided at the tip of the protruding portion, and a plurality of air-blowing blades are provided on the outer periphery of the small-diameter disk on the side of the disk, and a blowing guide directed to the outside of the blade. A plate is provided on the disc, and the vane plate and the guide plate are covered with a semi-circular plate having an air blowing window opened in a direction of air blowing by the guide plate, and an outward check claw is formed on a side surface of the cylinder, And a ventilation blower for buildings, wherein a waterproof weir is formed at the inner end of the cylinder.