KR0136679B1 - Wind direction converting device of a motor fan - Google Patents

Abstract

The present invention discloses a technique for changing the blowing direction by operating the inclination angle of the louver mounted in front of the blade without swinging the fan head from side to side. A rectangular main body 10 having a discharge port 11 formed at the front, a blower fan 13 fixed to a motor rotating shaft installed inside the main body 10, a diaphragm 26 which divides the discharge port into two upper and lower stages, And a plurality of louvers 23 vertically rotatably rotatably opened by hinge pins at upper and lower ends of the discharge port partitioned by the diaphragm, and direction switching means for changing the inclination angle of the louvers in left and right directions by using a rotational force of a motor. Here, the direction switching means is a drive gear 21 and the driven gear 22, the rear end hinge 22c is angular movement coupled to the diaphragm 26 and the front end is coupled to the driven gear 22 The driven lever 22b and the center hinge 25c coupled to the diaphragm 26 to the angular movement, and the driving lever 25b having the tip ring 25d coupled to the driven lever 22b, and The ring 25 when rotated by the control knob 25a, which is eccentrically installed at the rear end of the drive lever 25b. d) a cam 25 for urging the rear end of the driving lever 25b downward so that the d is raised; a spring 25c for pulling the front end of the driving lever 25b downward so that the ring 25d is lowered; 24b) and a vertical long hole (24c) and the wind direction switching device comprising a movable plate (24) formed with a projection (24a) for supporting each louver (23) between the upper and lower ends.

Description

Fan direction change device

The present invention relates to a wind direction switching device of the fan, and more particularly, by installing a plurality of louvers vertically in front of the wing, and to turn the direction to the left and right, the head of the fan, that is, the wind direction in the state that the blade is not turned The present invention relates to a wind direction switching device for a fan configured to variably discharge in various directions.

Generally, as shown in FIG. 1, a fan 2 is installed at an upper portion of a vertically placed pedestal 1, and is blown to a tip of a rotation shaft of a motor 2 extending horizontally in a direction perpendicular to the pedestal. The vanes 3 are coupled in a rotatable state.

On the other hand, the rear of the wing 3 is wrapped and protected by the rear safety net 4 at the front of the motor 2, and the front safety net 5 is clipped with respect to the rear safety net 4 at the front of the rear safety net 4. It is assembled in a decomposable state by the front of the wing 3 is wrapped and protected. In addition, when the direction changer 6 is operated according to the driving of the motor 2, the wind direction is directed to a desired place by the motor 2 and the blade 3 being turned left and right about the base 1.

In the conventional fan configured as described above, the head equipped with the motor 2 and the front and rear safety nets 4 and 5 are rotated left and right together with the blowing fan to change the blowing direction. There is a disadvantage. Therefore, the conventional fan is inconvenient in use that a space in which the motor 2 and the front and rear safety nets 4 and 5 can be rotated must be secured.

The present invention has been developed in view of the above problems of the conventional fan, the object of which is to install a plurality of louvers vertically in front of the blowing wing, and by using the rotational force of the motor to rotate the left and right, the motor and the wing It is to provide a wind direction switching device of the fan so that the variable direction is changed to the desired direction in the state that is not the direction change.

1 is a side cross-sectional view of a general electric fan.

Figure 2 is a side cross-sectional view of a fan equipped with a wind direction switching device according to the present invention.

Figure 3 is an exploded perspective view of the wind direction switching device of the linear plane according to the present invention.

Figure 4 is a front view of a fan equipped with a wind direction switching device according to the present invention.

5a and 5b is a partial cross-sectional plan view of the wind direction switching device according to the present invention.

* Explanation of symbols for main parts of the drawings

10: main body 11: discharge outlet

12: motor 13: wings

14: rotating shaft 21: drive gear

22: driven gear 22a: eccentric pin

22b: driven lever 22c: hinge

23: louver 24: movable version

24a: protrusion 24c: vertical

25: cam 25a: adjustment knob

25b: Driving lever 25c: Hinge

25d: Ring

In order to achieve the above object, a fan according to the present invention includes a rectangular main body having a discharge port formed at the front, a blower fan fixed to an approximately middle portion of a motor rotation shaft installed inside the main body so as to correspond to the discharge hole, and the discharge port. A plurality of louvers installed vertically rotatably by hinge pins at upper and lower ends, a drive gear mounted at the front end of the motor rotation shaft, an eccentric pin formed eccentrically on a driven gear meshed with the drive gear, and protrusions formed at the upper and lower ends. It is characterized in that the movable plate is inserted between the louvers and moved to the left and right through a vertical hole fitted to the eccentric pin.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a side cross-sectional view of a fan having a wind direction switching device according to the present invention, Figure 3 is an exploded perspective view of the wind direction switching device of the fan according to the present invention. That is, in the fan according to the present invention, a discharge port 11 is formed above the front of the main body 10 having a rectangular parallelepiped shape, and a motor 12 directed toward the center of the discharge port 11 is installed at the rear upper side of the main body 10. .

The motor 12 is fixedly installed in the main body 10 by a predetermined bracket 15 and is provided with a rotating shaft 14 in front of the motor 12 to rotate at a high speed.

In addition, a blowing fan is fixedly installed at a substantially central portion of the rotary shaft 14 by a hub 14a inserted from the tip of the rotary shaft to discharge the wind toward the discharge port 11. On the other hand, the discharge port 11 is provided with a diaphragm 26 in the center horizontal direction so that the discharge port 11 is divided up and down.

A plurality of louvers 23 are installed at equal intervals between the upper and lower surfaces of the diaphragm 26 and the upper and lower ends of the discharge port 11 to be rotated by a hinge pin 23a formed at the lower end thereof. In addition, a direction switching means for turning each louver 23 to the left and right sides in accordance with the rotation of the rotary shaft 14 to the inner side of the diaphragm 26 is provided as shown in Figs. As described above, the driven gear 22 and the rear end hinge 22c which are decelerated in engagement with the drive gear 21 and the drive gear 21 formed at the front end of the rotary shaft 14 are coupled to the diaphragm 26 to each other. A driven lever 22b whose end is moved and coupled to the driven gear 22, and the central hinge 25c are engaged with the diaphragm 26 are angularly moved, and the end ring 25d is driven by the driven lever 22b. The rear end of the drive lever 25b coupled to the drive lever 25b and the central hinge 25c is engaged with the diaphragm 26 and angularly moved, and the end ring 22d is coupled to the driven lever 22b. Cam 25 for pressing the rear end of the drive lever 25b downward so that the ring 25d is raised when rotated by the adjustment knob 25a, which is eccentrically installed, and A spring 25c is provided to pull the tip of the driving lever 25b downward so that the lid 25d is lowered.

On the other hand, the projection 24a is formed between the drive gear 21 and the blade 13, the horizontal long hole 24b is fitted into the rotary shaft 14, the rotary shaft 14 is fitted between the louvers 23 at the upper and lower ends. The movable plate 24 formed with) is provided in the horizontal direction at the center of the discharge port 11. Moreover, it fits in the vertical slot 24c in the center upper side of the horizontal slot 24b of the movable plate 24. As shown in FIG.

According to the present invention configured as described above, the motor 12 is fixedly installed in the main body 10 by the bracket 15 and the blade 13 is installed on the rotating shaft 14 through the hub 14a, so that it is not exposed to the outside. In this state, since the discharge port 11 is formed in front of the blade 13, the wind is discharged to the room through the discharge port (11). On the other hand, since the plurality of louvers 23 are vertically installed in the discharge port 11, the wind direction changes according to the direction of the louver 23. That is, when changing the inclination angle of the louver to switch the wind direction, as shown in Figure 4, the adjustment knob 25a protruding outward of the diaphragm 26 is placed in a state in which the cam 25 is not operated. . Then, the driving lever 25b is lowered about the hinge 25c by the pulling force of the spring 25e and meshes with the driven gear 22 and the driving gear 21. Thus, when the driving gear and the driven gear are engaged, the rotating shaft ( When the 14 is rotated, the drive gear 21 is rotated and its rotational force is transmitted to the driven gear 22 so that the eccentric plate 22a eccentrically formed therefrom is radially offset from the center of the driven gear 22. The working plate 24, which is idle and coupled to the vertical long hole 24c, is moved left and right. In other words, when the eccentric pin 22a is positioned on the upper and lower shafts by the rotation of the driven gear 22, the movable plate 24 is stopped by the vertical long hole 24c, and the movable plate 24 is moved to the left and right sides when positioned on the left and right sides. Is moved. On the other hand, when the movable plate 24 is moved to the left and right sides, the projections 24a formed at the upper and lower ends thereof move together, and each louver 23 is oriented to the left and right as shown in FIG. 5 about the hinge pin 23a. It is switched. Therefore, the wind direction is switched to the left and right.

On the other hand, when the wind direction is to be fixed in one direction, the adjustment knob 25a is rotated in the direction in which the cam 25 moves. When the cam 25 is rotated to its operating position, as one side of the driving lever 25b is lowered, the ring 25d is raised about the hinge 25c, and the driven lever 22b is centered on the hinge 22c. As the spring 25c is tensioned upward, the driven gear 22 is separated from the driving gear 21 and stopped. Therefore, since the eccentric pin 22a is not rotated, the movable plate 24 is stopped and the louver 23 is stopped, so that the wind direction is directed in a constant direction.

As described above, according to the present invention, when the wind direction is switched in the state where the motor and the blade are installed inside the main body, the motor and the blowing fan itself are not switched to the left and right, so that they do not interfere with the surrounding obstacles during the direction switching. That is, when the blade is rotated in the state in which the plurality of louvers are installed in the discharge port in front of the wing, the direction of the louver is switched to the left and right by the rotational force thereof has the effect of automatically switching the wind direction.

Claims (1)

A rectangular body 10 having a discharge port 11 formed in front, a blower fan 13 fixed to a motor rotating shaft installed inside the main body 10 so as to correspond to the discharge hole 11, and a discharge hole 11; The diaphragm 26 which is installed in the horizontal direction at the center and divides the discharge opening into two upper and lower stages, and the plurality of louvers 23 vertically rotatably installed by hinge pins at the upper and lower ends of the discharge opening partitioned by the diaphragm, And a direction switching means for converting the inclination angle of the louver to the left and right directions by using the rotational force of the rotor, wherein the direction switching means includes a drive gear 21 formed at the tip of the rotation shaft 14 and the drive gear 21. And driven gear 22, which is decelerated in engagement with the gear, and driven lever 22b having a rear hinge 22c coupled to the diaphragm 26, each of which is moved, and whose front end is coupled to the driven gear 22. The central hinge 25c is coupled to the diaphragm 26 and angularly When the ring 25d at the front end is rotated by the driving lever 25b coupled to the driven lever 22b and the adjustment knob 25a installed at the rear end of the driving lever 25b, the ring 25d is rotated. The cam 25 presses the rear end of the drive lever 25b downwardly so as to be lifted up, the cam 25 presses the rear end of the drive lever 25b downwardly so that the loop 25d rises, and the loop 25d is A spring 25c for pulling the front end of the driving lever 25b downward, a horizontal hole 24b and a vertical hole 24c are provided, and a protrusion 24a for supporting each louver 23 between the upper and lower ends. The wind direction switching device of the fan, characterized in that provided with a movable plate (24) formed.