JP2008267660A - Circulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circulator, reducing pressure loss in changing the wind direction to make the blowing performance improved, and eliminating wind noise. <P>SOLUTION: This circulator includes a substantially cylindrical fan casing 4 having an air suction port 4b on one end and a blowout port 4a on the other end; and a blowing fan 3 rotated in the fan casing 4, wherein the air in a room is suctioned by rotation of the blowing fan 3 from the suction port 4b, and an air current is blown out from the blowout port 4a. A rotating shaft 3a of the blowing fan 3 and the center of rotation of the blowout port 4a of the fan casing 4 are provided on the same axis, and the fan casing 4 is driven by making a pinion gear 9 of a casing rocking motor 8 rotate, meshing with a circular-arc rack gear 10 provided on the inner peripheral surface of a flange part 43 of the fan casing 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a circulator that is attached to a ceiling or inner wall of a room and used to circulate room air.

  A circulator that circulates cool air and warm air in the room up and down has a suction port at one end and a blowout port at the other end, and a duct having an air flow passage formed between the suction port and the blowout port. The fan is installed on the ceiling or inner wall surface of the room (see Patent Document 1), which is provided with a fan that allows air to flow from the inlet port toward the outlet port at an intermediate position of the duct. There is a type (see Patent Document 2) in which indoor air is sucked in by rotating the air and air current is blown out from the centrifugal Dufuser air passage. In addition, in order to increase the circulation efficiency, there is a type in which a plate blade-like swing louver that swings up and down is attached to the outlet to change the air direction (see Patent Document 3).

Japanese Utility Model Publication No.59-167337 Japanese Patent No. 3536195 JP-A-8-94165

  However, in the wind direction conversion by the blade-shaped swing louver, pressure loss occurs due to the louver blocking the air flow, the reach distance of the air blow is short, and the air volume and wind speed are not uniform with changing the louver angle. And there was a problem that wind noise was generated. The present invention has been made in view of the above-described problems of the prior art, and an object thereof is to provide a circulator capable of reducing pressure loss when changing the wind direction, improving air blowing performance, and eliminating wind noise. To do.

  For this reason, in the present invention, an air suction port is provided on one end side and an air outlet is provided on the other end side, and an air passage is provided between the suction port and the air outlet, and air is supplied from the suction port to the air outlet. In a circulator including a blower fan that is made to flow, the first feature is that the air outlet is provided so as to be swingable up and down. In addition, a substantially cylindrical fan casing having an air suction port on one end side and an air outlet on the other end side, a blower fan that rotates in the fan casing, and rotation of the blower fan from the suction port In the circulator that sucks air and blows out the airflow from the blowout port, the rotation axis of the blower fan and the rotation center of the blowout port of the fan casing are provided on the same axis, and the fan casing is driven by the flange portion of the fan casing. The second feature is that the rotation is performed by rotating a pinion gear of a casing swinging motor meshed with an arc-shaped rack gear provided on the inner peripheral surface of the casing.

The present invention has the following excellent effects.
(1) Since the air outlet itself is oscillated, the pressure loss when changing the wind direction can be reduced, the air blowing performance can be improved, and the wind noise can be eliminated. (2) The rotating shaft of the air blowing fan Since the rotation center of the air outlet of the fan casing is on the same axis, the air volume, wind speed, and wind noise do not change regardless of the position of the air outlet.
(3) The fan casing is driven by providing an arc-shaped rack gear on the inner surface of the flange portion of the fan casing and rotating the pinion gear of the fan casing swinging motor meshing with the rack gear. Can be moved with less force than rotating.

  Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings. 1 is a front view showing an embodiment of a circulator main body according to the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1, FIG. 3 is a front view showing a state in which a fan casing is moved upward, and FIG. 3 is a cross-sectional view taken along the line BB in FIG. 3, FIG. 5 is a cross-sectional view taken along the line CC in FIG. 3, FIG. 6 is a front view, and FIG. FIG. 8A is a front view and FIG. 5B is a side view showing another example of the attachment state of the circulator.

  The circulator main body 1 of the present invention includes a substantially cylindrical fan casing 4 that is mounted in a mounting frame 2 so as to be swingable up and down, and a cylindrical blower fan 3 built in the fan casing 4. The blower fan 3 has one end of the rotating shaft 3 b connected to the fan motor 5 and the other end pivotally supported by the bearing bearing 7.

  The fan casing 4 is integrally provided with an air outlet 4a whose front side is narrowed and opened over the entire longitudinal direction, and the rear side is also opened to be an inlet 4b, with guide plates 4c on both sides. Is provided. Further, a bearing fitting cylinder portion 4 d is projected from both guide plates 4 c of the fan casing 4, and the outer circumference side of the casing receiving bearing 6 is fitted and fixed to the bearing receiving cylinder portion 2 a of the mounting frame 2. Mated. That is, the inside of the casing receiving bearing 6 is fixed to the mounting frame 2, the outside is fixed to the fan casing 4, and the air outlet 4 a is swingable up and down.

  The casing bearing 6 is penetrated with a gap so that the rotating shaft 3a of the blower fan 3 does not come in contact, and the rotation center of the rotating shaft 3a of the blower fan 3 and the outlet 4a of the fan casing 4 are coaxial. Therefore, since the fan casing 4 moves around the rotating shaft 3a of the blower fan 3, the air volume, the wind speed, and the wind noise do not change regardless of the position of the outlet 4a. The fan casing 4 is driven by providing an arc-shaped rack gear 10 on the inner peripheral surface of the flange 4e of the fan casing 4 and rotating the pinion gear 9 of the casing swinging motor 8 engaged therewith. Thereby, it can be moved with a smaller force than rotating around the center of the outlet 4a as a support shaft. In addition, although it does not specifically limit as the ventilation fan 3, A sirocco fan is suitable.

  As shown in FIGS. 6 and 7, the circulator of the present invention is formed in a stationary type apparatus in which the circulator body 1 is attached to the upper part and the suction grille 11 is integrally attached to the air passage 12, or in the wall surface. An air passage 12 is formed, and the circulator body 1 is used in the lower part and the suction grill 11 is directly attached to the wall surface. The length of the air passage 12 is arbitrary, and in the case of an integrated device, the device may be a device having a low height such that the circulator body 1 is positioned near the floor surface. Moreover, you may attach a caster etc. so that a movement is possible.

It is a front view which shows one Example of the circulator main body which concerns on this invention. It is the sectional view on the AA line of FIG. It is a front view which shows the state which the fan casing moved upwards. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is CC sectional view taken on the line of FIG. (A) which shows an example of the attachment state of a circulator is a front view, (b) is a side view. (A) which shows the other example of the attachment state of a circulator is a front view, (b) is a side view.

Explanation of symbols

1 Circulator body 2 Mounting frame 2a Bearing tube (inner circumference side)
3 Blower fan 3a Rotating shaft of blower fan 4 Fan casing 4a Air outlet 4b Suction port 4c Guide plate 4d Bearing fitting cylinder (outer peripheral side)
4e flange 5 fan motor 6 casing bearing 7 bearing bearing 8 casing swinging motor 9 pinion gear 10 rack gear 11 suction grill 12 ventilation path

Claims (2)

An air inlet is provided on one end side, and an air outlet is provided on the other end side. A ventilation passage is provided between the air inlet and the air outlet, and a blower fan is provided to flow air from the air inlet to the air outlet. A circulator characterized in that the air outlet is provided so as to be swingable up and down. A substantially cylindrical fan casing having an air inlet at one end and a blower outlet at the other end, a blower fan that rotates in the fan casing, and air in the room by rotation of the fan from the inlet In the circulator that sucks in and blows out the airflow from the blowout port, the rotation axis of the blower fan and the rotation center of the blowout port of the fan casing are provided on the same axis, and the drive of the fan casing is performed within the flange portion of the fan casing. 2. The circulator according to claim 1, wherein the circulator is rotated by rotating a pinion gear of a casing swinging motor meshed with an arc-shaped rack gear provided on a peripheral surface.