JPS63295895A - Oscilating device for fan - Google Patents

Abstract

PURPOSE:To control the oscilating speed by providing a first motor for oscilation use which drives the sun gear of a planetary gear mechanism, and a second motor for oscilation use which drives a driven gear to cause integrally the revolution of the planetary gear. CONSTITUTION:Motors 8 and 9 for oscilation use are provided on a supporting frame 7, and a planetary gear mechanism 10 in which a pair of planetary gears 12 are engaged with a sun gear 11 is provided. The output shaft 8a of the motor 8 for oscilation use is fitted in the sun gear 11, and the output shaft 9a of the motor 9 for oscilation use is fitted in a driving gear 24, and these gears are connected through a driven gear 15. Thus, by controlling the operation (reversing, starting, and stoppage) of both motors, the speed of oscilation can be controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION (Field of Application in Industry-1-) The present invention relates to a oscillating device for an electric fan provided with a mechanism for adjusting the surface of the head of the electric fan and a mechanism for adjusting the oscillation speed.

(Prior Art) There are two types of conventional electric fan oscillation devices: one that uses a fan motor as the driving source for the oscillation, and one that uses a dedicated four-swing motor.

Among these, those that also function as a fan motor reduce the rotational force of the fan motor using a speed reduction mechanism and transmit it to a crank, and the rotational movement of the crank causes the link to swing, causing the head of the fan to perform an oscillating motion. .

However, in this case, the oscillating motion always takes place at a constant reduction ratio relative to the rotational speed of the fan motor, so when the strength of the air volume (the rotational speed of the fan motor) is changed, the oscillating speed is also increased or decreased accordingly.

For this reason, some users may feel that the swinging speed is too slow in weak winds, or too fast in strong winds, and the swinging speed is not necessarily appropriate.

On the other hand, with a device equipped with a dedicated oscillation motor, the oscillation speed is always constant regardless of the strength of the airflow, but the oscillation speed that the user generally feels comfortable with depends on the oscillation angle, airflow, and airflow. l
Because it varies depending on the crystal, etc., even when the four-wave speed is constant,
There were times when I felt that the oscillation speed was not appropriate.

(Problems to be Solved by the Invention) As stated above, the swing speed that the user feels is optimal differs depending on the swing angle, air volume, temperature, etc., but the conventional structure In all cases, the swing speed of the head is determined mechanically regardless of the user's intention, so the swing speed is not necessarily appropriate for the user.

The present invention is an attempt to solve these problems.
Therefore, the object is to provide an electric fan oscillation device that can adjust the oscillation speed according to the user's preference regardless of the strength of the airflow.

[Configuration of the Invention (Means for Solving Problems)] The four-shake device of the present invention swings a link connected to the fan head by the rotational movement of a crank to cause the fan head to swing. An internal gear provided on the crank, a planetary gear mechanism in which a planetary gear meshes with the internal gear, and a first oscillating motor that drives a sun gear of the planetary gear mechanism. a driven gear that is provided concentrically with the sun gear and rotates together with the revolution of the idler U gear; a drive gear meshed with the driven gear; and a second gear that drives the drive gear. and a swing motor, and is configured to adjust the swing speed of the fan head by controlling the operation of both the first and second swing motors.

(Function) When operating only the first oscillating motor, conversely, when operating only the second oscillating motor, when operating both oscillating motors together, or when operating only one of the oscillating motors. When operating both swing motors by reversing the swing motor, the swing speed changes depending on which one is selected. That is, when only the first oscillating motor is operated, the rotation of the sun gear is transmitted to the internal gear (crank) while the revolution of the planetary gear is blocked by the driven gear. On the other hand, when only the second swing motor is operated, the driven gear is rotated by the driving gear, so the driven gear rotates the planetary gear around the sun gear while the rotation of the sun gear is blocked. This rotates the internal gear (crank). Furthermore, when both oscillating motors are operated together, the planetary gears revolve at the same time as the sun gear rotates.

(Example) Hereinafter, one example of the present invention will be described based on the drawings. First, in FIG. 2, reference numeral 1 denotes a fan head, and a fan motor 3 is disposed in the front half of the cover 2. and,
A 14' oscillating center shaft 4 protrudes downward from the lower surface of the fan motor 3, and the lower end of this oscillating center shaft 4 is rotatably supported by a neck piece 6 at the upper end of the support column 5. 1 can be swung around the light center 4. Also, a rotating shaft 3 protruding forward of the fan motor 3
A fan (not shown) is fitted in a. on the other hand,
A support frame 7 is fixed with screws 11 between the rear surface of the fan motor 3 and the back surface of the cover 2, and a first four-stroke motor 8 and a second four-stroke motor are mounted on this support frame 7. A motor 9 is attached.

In this case, both the first and second oscillating motors 8, 9 are, for example, synchronous motors with a built-in deceleration mechanism, and their output shafts 8a, 9a (see Fig. 1) are both protruded downward. There is. Reference numeral 10 denotes a planetary gear mechanism consisting of a sun gear 11 and a pair of planetary gears 12 meshing with each other, and its sun gear width 11 is fitted onto the output shaft 8a of the first oscillating motor 8. In this case, the fitting (1η structure) is such that the rotation stop pin 13 penetrating the output shaft 8a is locked in the locking groove 14 of the sun tooth width 11. Historically, the output shaft 8a has a driven Gear 15 and support plate 1
6 is rotatably inserted through the inner planetary gear 12 in such a manner that it is sandwiched from both sides below 1, and both planets 1' and 41 are supported by both upper and lower ends of the same rotating shaft 12a of the wheel 12 or by the driven gear 15 and the support plate 16. has been done. As a result, the driven gear 15 is provided concentrically with the sun tooth width 11 and rotates together with the revolution of the planetary gear 12. In addition, both reverse star gears 1
2 are located 180° opposite each other with the sun gear 11 in between. A crank 17 is rotatably inserted through the output shaft 8a, and the crank 17 is removed downward by a stop ring 19 located in front of the lower end of the output shaft 8a. In this case, the crank 17 is formed into a circular container shape so as to cover the support plate 16 and both the reverse star gears 12 from below, and the internal gear 20 formed on the inner peripheral wall of the crank 17 covers the support plate 16 and both the reverse star gears 12.
It is meshed with 2.

Further, a boss portion 21 is protruded from an eccentric position on the lower surface of the crank 17, and a rear end of a link 22 is rotatably connected to this boss portion 21. The front end of the link 22 is
As shown in FIG. 2, it is rotatably connected to a support portion 23 provided on the upper surface of the neck piece 6 near the central axis of swing 4. As shown in FIG. On the other hand, a drive gear 24 is fitted onto the output shaft 9a of the second oscillation motor 9, as shown in FIG. 1, and this drive gear 24 is meshed with the driven gear 15. This drive gear 24 is rotated by a rotation stopper pin 25 that is fixed to the output shaft 9a, so that it rotates together with the output shaft 9a.

Therefore, in this embodiment, the sun gear 11 and the 't1 star gear 1
The ratio of the number of teeth between the gear 2 and the internal gear 20 is set to 2:1:4, and the ratio of the number of teeth between the driving gear 24 and the driven gear 15 is set to 1:1. Furthermore, both first and second swing motors 8
, 9 are set to be the same, and the rotation direction of the first swing motor 8 (in the direction of arrow A in FIG. ) are in opposite directions.

In FIG. 6 showing the electrical configuration, 26 is a wind gauge changeover switch that switches the air volume between high, medium, and low (switches the rotation speed of the fan motor 3 between high, medium, and low), and is linked to its operation. The four-stroke power switch 27 is turned on and off. Then, for this power switch 27, the first and second
Both front swing motors 8 and 9 are connected to the first and second switches 2
8.29 are connected in parallel.

Next, the operation of the above configuration will be explained. When operating the electric fan, turn on the switch corresponding to the desired air volume among the air volume selector switches 26, the fan motor 3 is started, the fan (not shown) rotates, and operation with the desired air volume is executed. Ru. During this operation, when only the first switch 28 is turned on and the first oscillation motor 8 is operated in order to cause the fan head 1 to oscillate, its output shaft 8a rotates in the direction of arrow A in FIG. As a result, the sun gear 11 is rotationally driven.

Due to the rotation of the sun gear 11, the planetary gear 12 rotates (rotates) about the rotating shaft 12a in the direction of arrow C, but the orbital movement of the planetary gear 12 is blocked by the driven gear 15. That is, since the rotating shaft 12a of the planetary gear 12 is supported by the driven gear 15, in order for the planetary gear 12 to revolve, the driven gear 15 must be rotated together with this, but in this case, the second neck Since the swing motor 9 is stopped and the drive gear 24 is held in a stopped state by its output shaft 9a, the driven gear 1 is
5 is prevented from rotating, thereby causing the play I′ tooth itf,
12 is prevented from orbiting. As a result, the double-reverse Ji1 gear 12 is in the normal position 11. By rotating the internal gear 20 in the direction of the arrow, and rotating the crank 17 together with this, the link 22
is swung from side to side to cause the fan head 1 to oscillate from side to side about the oscillation center shaft 4. In this case, since the tooth ratio of the sun gear 11, the t1 star gear 12, and the internal teeth 120 is set to 2:1:4, only the first oscillating motor 8 is operated as described above. In this case, the crank 17 (internal tooth 1
The rotation speed P1 of the first oscillating motor 8 (sun gear 11) is 1/2 of the rotation speed of the first oscillating motor 8 (sun gear 11). Therefore, the swinging speed v1 at this time is a speed at which swinging is performed once every two revolutions of the first swinging motor 8.

On the other hand, when only the second switch 29 is turned on and only the second vibration motor 9 is operated, the driving gear 24 is rotated in the direction of arrow B in FIG. 4, and the driven gear 15 is rotated in the direction of arrow A. Rotationally driven. In this case, the first four-stroke motor 8 is stopped and the sun gear 11 is held in a stopped state, but due to the rotation of the driven tooth 1t15 described above, both t1 and t1 are rotated.
i12 rotates around the sun gear 11 in the direction of the arrow E and revolves in the direction of the arrow. As a result, the rotation of both reverse star gears 12 causes the internal gear 20 (crank 17) to rotate in the direction of the arrow, causing the fan head 1 to swing.

In this way, when only the second four-stroke motor 9 is operated, the gear ratio between the driving gear 24 and the driven gear 15 is set to 1=1, and the sun gear 11, the planetary gear 12, and the internal gear 20
Since the ratio of the number of teeth is set to 2:1:4, the rotation speed P2 of the crank 17 (internal gear 20) is 1.5 times the rotation speed of the second portrait motor 9. In this case, since the rotation speeds of both the first and second oscillation motors 8 and 9 are set to be the same, the crank 17 when only the second oscillation motor 9 is operated. The rotation hpz of
Crank 1 when only the first swing motor 8 is operated
Therefore, the swing speed V2 is also three times as high as v1.

Further, when both the first and second switches 28 and 29 are turned on and both the first and second oscillation motors 8 and 9 are operated, the sun gear 11 is set to the first oscillation mode 8. When it is rotationally driven in the direction of the arrow Ah in Fig. 5 by ((+p, the second
The driven gear 15 is also rotationally driven in the direction of arrow A by the oscillating motor 9 via the drive gear 24, so that both inverted star gears 12 revolve around the sun gear 11 in the direction of arrow A. . In this case, both 4-stroke motors 8.
9 are opposite to each other, the rotation direction of the sun gear 11 coincides with the rotation direction of the driven gear 15 and the revolution direction of the planetary gear 12. The rotational speeds of the sun gear 1
1 and the driven gear 15 rotate at the same rotation speed and in the same direction. Therefore, the rotational motion of the sun gear 11 and the revolving motion of the planetary gears 12 coincide, and as a result, the idler d gear 12 only performs a revolving motion without rotating.

The revolution of the idler gear 12 causes the inner jaw wheel 2° (crank 17) to rotate in the direction of arrow A, causing the fan head 1 to swing. In this way, when both the first and second four-shaft motors 8 and 9 are operated, the rotation speed P3 of the crank 17 (internal gear 20) is equal to the rotation speed of the double-shaft motors 8 and 9. The rotation speed P1 of the crank 17 when only the first vibration motor 8 described above is operated is twice the rotation speed P1.
The head swing speed V3 is also twice that of (1) above.

According to the above embodiment, when it is desired to slow down the swing speed,
If you want to operate only the first oscillating motor 8 and, on the other hand, want to increase the oscillating speed, you may want to operate only the second oscillating motor 9 and oscillate at an intermediate speed between the two. in case of,
The swing speed can be switched to three levels according to the user's preference, such as by operating the first and second swing angle motors 8 and 9 together. .

An appropriate swing speed can be selected in consideration of air pressure 11μ, etc., and comfortable cooling can be achieved. Moreover, in this case, since two motors 8 and 9 are provided exclusively for the four-stroke, the switching of the strength of the air temperature (the number of rotations of the fan motor 3) and the switching of the four-stroke speed are completely unrelated. , the oscillation speed can be adjusted regardless of the strength or weakness of the air volume.

In addition, in the above embodiment, the swing speed is configured to be switchable in three stages, but in the above embodiment, a swing operation mode is added in which both swing motors 8.9 are rotated in the same direction at the same time. It is also possible to adopt a configuration in which the swinging speed can be switched in four stages. Moreover, in the above embodiment, aJ+! Although the number of gears 12 is two, it may be one or three or more.

In addition, the present invention provides that each gear 11, 12, 15°20.2
Various modifications can be made without departing from the scope of the present invention, such as changing the ratio of the number of teeth of the oscillating motors 8 and 9 as appropriate, or making the rotational speeds of the two oscillating motors 8 and 9 different from each other.

[Effects of the Invention] As is clear from the above description, the present invention comprises an internal gear provided on a crank, a planetary gear mechanism in which a planetary gear meshes with the internal gear, and a sun gear of this planetary gear mechanism. a first oscillating mortar to be driven; a driven gear that is provided concentrically with the sun gear and rotates together with the revolution of the oscillating gear; a driving gear meshed with the driven gear; Since it is composed of a second oscillation motor that drives the drive gear, by controlling the operation of both oscillation motors,
It is possible to adjust the swing speed according to the user's preference regardless of the strength of the wind, and it has the excellent effect of providing comfortable cooling.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is an enlarged vertical side view of the main part, FIG. 2 is a vertical side view of the head of the electric fan,
Figure 3 is a bottom view of each gear section showing the rotation direction of each gear with arrows when only the first oscillation motor is operated, and Figure 4 is a bottom view of each gear when only the second oscillation motor is operated. 3 is a diagram corresponding to FIG. 3, FIG. 5 is a diagram corresponding to FIG. 3 when both the first and second oscillating motors are operated, and FIG. 6 is an electric circuit diagram. In the drawing, 1 is the fan head, 3 is the fan motor, and 8 is the first
9 is a second oscillation motor, 10 is a planetary gear mechanism, 11 is a sun gear, 12 is a planetary gear, 15 is a driven gear, 17 is a crank, 20 is an internal gear, 22 is a link, 24 is a drive gear.

Claims (1)

[Claims] 1. In a device in which a link connected to the fan head is swung by the rotational movement of a crank to cause the oscillating movement of the fan head, an internal gear provided on the crank, and a planet attached to the internal gear. A planetary gear mechanism formed by meshing gears, a first oscillating motor that drives a sun gear of the planetary gear mechanism, and a first oscillation motor that is provided concentrically with the sun gear and rotates together with the revolution of the planetary gear. A driven gear, a drive gear meshed with the driven gear, and a second oscillating motor for driving the drive gear,
An electric fan oscillation device configured to adjust the oscillation speed of the electric fan head by controlling the operation of both oscillation motors.