JPH05332290A - Electric fan - Google Patents

Abstract

PURPOSE:To vary an oscillating area and an oscillating speed by oscillating a fan head laterally by a second motor in a specified area relative to a base in addition to an oscillating operation of the fan head by a first motor. CONSTITUTION:When an oscillating center moving motor 13 is driven, a rotating ring 33 rotates a pivot shaft 31 relative to an oscillating center adjusting body 18 by a cam 47 to move the oscillating center of an electric fan head 30. In this case, because the adjusting body 18 is connected to a right and left oscillating motor 11 through a drive link 26, it does not move and the pivot shaft 31 is rotated to oscillate a head 30 within a range of 90 deg.. Next, when the right and left oscillating motor is driven, the adjusting body 18 is rotated through the drive link 26 by the rotation of a cam plate 22 and, to oscillate in a direction reverse to that of the motor 13, the head 30 is moved within a range of approx. 30 deg., and an oscillating speed is also varied accordingly. Then, when the motors 11 and 13 are driven so that they are oscillated in the same direction, a total oscillating area can be increased up to approx. 150 deg. and also an oscillating speed is varied.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan suitable for varying the range of swinging the head of the fan with respect to a base.

[0002]

2. Description of the Related Art In a conventional fan, a blower motor for its head blows air, while the head of the fan is swung at a constant speed in a constant range with respect to a base. This is designed to send a refreshing breeze over a wide area.

[0003]

By the way, there are cases where it is preferable that the swing range and swing speed of the fan can be varied depending on the user or depending on the situation of use.

For example, there are cases where it is desired to change the swing range depending on the number and positions of people in the room. In this case, it is conceivable to mechanically adjust the swing range, but if it is mechanically adjusted, it cannot be operated remotely,
It has the drawback of being inconvenient to use.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a fan in which the swing range can be varied by controlling the swing of the head of the fan.

[0006]

According to a first aspect of the present invention, there is provided a fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and the fan for the base. In addition to the first motor that swings the head in a predetermined horizontal range, and the swinging operation of the fan head by the first motor, the head of the fan is swung in a predetermined horizontal range with respect to the base. A second motor for driving and a control means for driving and controlling the first motor while controlling the driving of the second motor are provided.

According to a second aspect of the present invention, there is provided a fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and the fan head for swinging with respect to the base. A forward / reverse rotation motor and a control means for rotating the forward / reverse rotation motor in the forward / reverse rotation / stop direction in order to swing the head of the fan irregularly with respect to the base are provided.

According to a third aspect of the present invention, there is provided a fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and a predetermined range of the fan head with respect to the base. In addition to the first motor for swinging the fan head and the swinging operation of the fan head by the first motor, a forward and reverse rotation is performed to swing the fan head with respect to the base.
And a control means for driving and controlling the first motor while rotating the second motor forward, reverse, and stop in order to swing the fan head irregularly with respect to the base. It is provided.

[0009]

According to the invention of claim 1, the first motor swings the head of the fan within a predetermined range on the left and right with respect to the base, while the first motor
In addition to the swinging motion of the fan head by the motor of No. 2, the second motor swings the fan head with respect to the base in a left and right predetermined range. The control means drives and controls the first motor while drivingly controlling the second motor. As a result, it is possible to operate by changing the swing range of the fan head. Therefore, the swinging control of the fan head can be performed according to the user's preference or according to the usage situation.

According to the second aspect of the invention, the forward / reverse rotation motor swings the fan head with respect to the base. The control means causes the forward / reverse rotation motor to normally rotate, reversely rotate, and stop in order to swing the head of the fan with respect to the base irregularly. As a result, the head of the fan can be swung in an irregular manner, and the air can be blown according to the user's preference.

According to the third aspect of the invention, the first motor swings the head of the fan with respect to the base within a predetermined range on the left and right,
In addition to the swinging motion of the fan head by the first motor, the second motor rotates forward and backward to swing the fan head with respect to the base. The control means drives and controls the first motor, while rotating the second motor forward, reverse, and stopping in order to swing the fan head irregularly with respect to the base. As a result, the head of the fan can be oscillated irregularly, and the air can be blown according to the user's preference.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of control means showing a first embodiment of the present invention. A switch circuit 7, a head position detection sensor 38, and a swing center position detection sensor 50 are connected to the control circuit 6, and a blower motor 10 and a left / right swing motor drive circuit 9 are connected via a blower motor drive circuit 8. A left and right swing motor 11 and a swing center moving motor drive circuit 12 are connected to the swing center moving motor 13 respectively.

Next, the mechanism of the fan 1 of this embodiment will be described with reference to FIGS. 2 to 5. Reference numeral 15 denotes a neck piece pivotally supported by a forked portion 17 on the upper part of the support column 16 so as to be capable of being tilted down and down. And are integrally formed.

Reference numeral 11 denotes a left and right swing motor housed in the neck piece 15, which is composed of a synchronous motor that rotates only in one direction, and is fixed to the boss 21 by screws. Reference numeral 22 denotes a cam plate which is mounted on the output shaft 23 of the left and right swing motor 11 so as not to rotate. An eccentric portion 24 is integrally formed on the lower surface, and a shielding wall 25 is integrally formed on the outer periphery in a semicircular shape upward. ing. Reference numeral 26 is a drive link for loosely fitting a ring portion 27 formed at one end into an eccentric portion 24 of the cam plate 22, and has a shaft hole 29 at the other end for loosely fitting a lower eccentric portion 28 of a swing center adjusting body 18, which will be described later. Is forming.

Reference numeral 18 denotes a swing center adjusting body for supporting a pivot 31 of a fan head 30 which will be described later, and a cylindrical portion 19 which is loosely fitted and supported by the bearing portion 20 of the neck piece 15, and this cylindrical portion 19
A lower eccentric portion 28 protruding downward at an eccentric position and loosely fitted and supporting the shaft hole 29 of the drive link 26, and an upper position protruding above the lower eccentric portion 28.
It has an upper eccentric portion 35 that loosely fits and supports an insertion hole 34 of a swing link 33, which will be described later, and an insertion hole 36 that inserts a power cord (not shown).

When the left and right swing motor 11 is driven, the cam plate 22 rotates, and the rotation of the cam plate 22 causes the drive link 26 to move to the bearing portion 20 of the neck piece 15.
On the other hand, the swing center adjusting body 18 is swung. At this time, since the swing center moving motor 13 built in the fan head 30 described later is connected to the swing center adjusting body 18 via the swing link 33, the swing center moving motor 13 is not driven. The fan head 30 is integrated with the swing center adjuster 18, and the fan head 30 swings left and right as the swing center adjuster 18 moves in the left-right direction.

Reference numeral 37 denotes a lid which covers the upper opening of the neck piece 15 and is equipped with a head position detecting sensor 38 for detecting the direction of the fan head 30 described later. Is composed of an optical sensor including a light emitting element 39 and a light receiving element 40. The head position detecting sensor 38 causes the light emitting element 3 to rotate when the cam plate 22 rotates.
9 and the light receiving element 40 between the shield wall 25 of the cam plate 22.
Is arranged so as to pass therethrough, and the rotational position of the cam plate 22, that is, the direction of the fan head 30 with respect to the base (not shown) is detected by the change in the amount of light received by the light receiving element 40 by the shielding wall 25. There is. That is, when the end of the shielding wall 25 passes between the light emitting element 39 and the light receiving element 40, the fan head 30 is moved to the right or left with respect to the base due to a change in the amount of light received by the light receiving element 40. It is designed to determine whether or not it is located at the swing limit. The light receiving element 40 is arranged inside the shielding wall 25 so that the light receiving element 40 receives the external light as much as possible.

Next, the fan head 30 will be described.
Is a blower motor having a pivot 31 that is inserted into the swing center adjuster 18 and is supported by loose fitting, and a blower fan 42 is detachably attached to the output shaft 41. 43
Is a cover covering the front part of the blower motor 10, and a guard 44 surrounding the blower fan 42 is detachably attached.

Reference numeral 45 is a mounting plate mounted on the rear portion of the blower motor 10, and has a bent portion 46 formed at the rear end. Thirteen
Is a swing center moving motor mounted on the upper surface of the mounting plate 45, and is constituted by a reversible synchronous motor that switches between forward and reverse rotation by switching energization. 47 is a swing center movement motor 13
The cam is mounted on the output shaft of the above, and the gear 48 is integrally formed on the upper portion and the eccentric shaft 49 is integrally formed on the lower surface.

Reference numeral 50 denotes a swing center position detecting sensor mounted on the mounting plate 45, which is composed of a variable resistor for varying the output voltage by rotating the shaft, and the shaft meshes with the gear 48 of the cam 47. The gear 51 is attached. The gear 51 is formed in a semicircular shape, and prevents the swing center position detection sensor 50 from being excessively rotated and damaged when the swing center moving motor 13 is rotated in a rotation range or more. It is like this.

Reference numeral 33 is a swinging link in which an insertion hole 52 formed at one end is loosely fitted to an eccentric shaft 49 of the cam 47, and an insertion hole 34 formed at the other end is formed in an upper eccentric portion of the swing center adjusting body 18. It fits loosely in 35.

When the swing center moving motor 13 is driven, the cam 47 rotates, and the rotation of the cam 47 causes the swing link 33 to move the swing center adjusting body 18 to the blower motor 10.
The pivot 31 of the fan is rotated to move the center of swing of the fan head 30. At this time, since the swing center adjuster 18 is connected to the left and right swing motor 11 via the drive link 26, the swing center adjuster 18 is connected to the neck piece 15 when the left and right swing motor 11 is stopped. That is, the swing center adjusting body 18 is integrated with the base, the swing center adjusting body 18 does not move, and the pivot shaft 31 of the fan head 30 does not move.
With respect to the left-right direction, the center of swing of the fan head 30 moves.

Reference numeral 53 is a condenser for driving the blower motor 10, 54 is a rear cover for covering the blower motor 10, the swing center moving motor 13, the swing center position detection sensor 50, etc., and the front end portion is the front cover 43. , And the rear portion is fixed to the bent portion 46 of the mounting plate 45 by screwing.

Next, the processing of the control means of this embodiment will be described with reference to FIG.

First, the operation switch of the switch circuit 7 is turned off.
When set to N, the blower motor drive circuit 8 in the control circuit 6 turns on the blower motor 10 (determination 1) (process 1). Here, when the switch operation for setting the air volume is turned on, a predetermined air volume is set (determination 2) (process 2). Next, when the swing switch operation is turned ON, the swing mode described below is entered and various swing modes are executed (determination 3) (process 3).

When the head right movement switch operation is turned on without turning the head swing switch operation ON, the head swing center movement motor 13 is normally rotated as a reversible motor, and the fan head 30 is moved to the right with respect to the base. The center of swing is moved to (step 4) (process 4). Further, when the head left movement switch operation is turned on, the swing center moving motor 13 as a reversible motor reverses to move the fan head 30 to the left with respect to the base (judgment 5). ) (Processing 5). That is, when the swing center moving motor 13 is driven, the cam 47
When the cam 47 rotates, the swing link 33 rotates the pivot 31 with respect to the swing center adjusting body 18, and the swing center of the fan head 30 moves. At this time, the oscillating center adjusting body 18 is connected to the left and right oscillating motor 11 via the drive link 26, so that the oscillating center adjusting body 18 does not move, and the pivot 31 of the fan head 30 moves the oscillating center adjusting body. It rotates in the left-right direction with respect to 18, and the swing center of the fan head 30 is moved.

The operation switch is OFF for the above processing and judgment.
When the operation switch is turned off, the blower motor 10 is turned off (process 6).

Next, based on the position information of the head position detecting sensor 38 and the swing center position detecting sensor 50, the left and right swing motors 11 and the swing center moving motor 1 as a reversible motor.
3 is turned on to move the fan head 30 in the front direction with respect to the base, and when this operation is completed, the left and right swing motors 11 and the swing center moving motor 13 as a reversible motor are turned off. (Processing 7) (Decision 7) (Processing 8).

Here, the swing mode of the first embodiment of the present invention described with reference to FIG. 6 will be specifically described. If the swing mode is changed to the swing mode according to the processing procedure described with reference to FIG. 6, the process shown in FIG. The procedure shifts to processing of various swing modes.

First, when the angle changeover switch (1) is turned on (judgment 1), the operation shifts to the first swing mode shown in FIG. 8 (process 1). In the embodiment shown in FIG. 8, the left and right swing motors 11 and the swing center moving motor 13 as a reversible motor have heads 30 of 60 ° and 90 ° respectively with respect to the base within the same time. It is designed to shake. That is, the left and right swing motor 11 is driven to rotate the cam plate 22 to swing the swing center adjusting body 18 via the drive link 26, and the swing link connected to the swing center adjusting body 18. While the fan head 30 swings by 60 ° via 33, the swing center moving motor 13 is driven within the same time and the swing link 33 is rotated by the rotation of the cam 47 with respect to the swing center adjusting body 18. Rotate the pivot 31 to rotate the fan head 3
0 should move 90 ° around the center of swing.

In the first swing mode, the left and right swing motor 1
When 1 is turned on and the head position detection sensor 38 determines that it is in the right direction with respect to the base, the swing center moving motor 13 as a reversible motor is rotated in the reverse direction, that is, the direction of the next left and right swing motor 11. The swing center is moved to the left in the opposite direction, and the swing center moving motor 13 as the reversible motor is rotated in the reverse direction until the head position detection sensor 38 determines that the swing is in the left direction (determination 1) (Process 1). ) (Decision 2) (Process 2).

On the other hand, when it is determined in Judgment 1 that the left / right swing motor 11 is swinging leftward based on the head position detection sensor 38, the swing center moving motor 13 as a reversible motor is used.
Is normally rotated, that is, the center of the swing is moved to the right in the direction opposite to the direction of the next left / right swing motor 11 (determination 1) (process 3). In the above process, the angle changeover switch (1) is OF
It is repeated until it becomes F (decision 3). When the angle changeover switch (1) is not OFF, the process returns to the process 2 (decision 4).

As described above, in the first swing mode, in order to swing the left and right swing motors 11 and the swing center moving motor 13 as a reversible motor in opposite directions, the fan head 30 is moved.
Moves in a swing range of approximately 30 ° with respect to the base, and the swing speed also changes accordingly.

Next, the angle changeover switch (2) shown in FIG.
When is turned on, the mode shifts to the second swing mode (process 2) (determination 2). Specifically, the second swing mode shown in FIG. 9 is entered, and the swing center moving motor 13 as a reversible motor is rotated in the forward direction. Then, when the right end is detected based on the swing center position detection sensor 50, the swing center moving motor 13 as a reversible motor is reversed, and this operation is performed based on the swing center position detection sensor 50. The process is performed until is detected (process 1) (decision 1) (process 2). This process is repeated until the angle changeover switch (2) is turned off, and ends when the angle changeover switch (2) is turned off (judgment 2) (judgment 3).

In this second swing mode, only the swing center moving motor 13 as a reversible motor drives.
The swing range is 90 °.

Next, the angle changeover switch (3) shown in FIG.
When is turned ON, the mode shifts to the third swing mode (process 3) (decision 3). Specifically, when the third swing mode shown in FIG. 10 is entered, the left and right swing motor 11 is turned on, and the right swing direction is detected based on the head position detection sensor 38, the reversible motor is used. Swing center movement motor 13 as
Is set to normal rotation and the head is driven until it swings to the left (process 1) (judgment 1) (process 2) (judgment 2).

On the other hand, when it is determined in the judgment 1 that the oscillating motion is to the left, the oscillating center moving motor 13 as the reversible motor is rotated in the reverse direction
Drive until the head swing is detected to the right (judgment 1)
(Processing 3).

In the above processing, the angle changeover switch (3) is OF
It is repeated until it becomes F (decision 3) (decision 4). As a result, in the third swing mode, 60 ° within the same time
Since the left and right swing motors 11 for swinging and the swing center moving motor 13 as a reversible motor for swinging 90 ° swing in the same direction, the swing range should be approximately 150 ° as a whole. Accordingly, the swing speed becomes different from that of the first and second swing modes.

Next, the swing mode of the second embodiment of the present invention will be described with reference to FIG.

When shifting to the swing mode of the processing described with reference to FIG. 6 and the random swing switch is turned on, the swing center moving motor 13 as a reversible motor is rotated in the forward direction according to a preset and stored procedure. Reverse operation is stopped, and irregular operation is driven (decision 1) (process 1). Further, when the random swing switch is not turned on, the left and right swing motor 11 is driven (process 2). As a result, the fan 1 does not send a constant air flow but an irregular air flow, and the user can be satisfied if an irregular air flow control is set in advance according to the user's preference and use situation. You can

Next, a swing mode showing a third embodiment of the present invention will be described with reference to FIG. In this embodiment, the swing center moving motor 13 is irregularly driven by the start of the random operation, while the left and right swing motors also swing left and right.

When shifting to the swing mode of the processing described with reference to FIG. 6 and the random swing switch is turned on, the left and right swing motors 11 are driven, while the swing center moving motor 13 as a reversible motor is driven. According to the procedure stored in advance and stored, irregular operations such as normal rotation, reverse rotation, and stop are performed.
(Judgment 1) (Process 1) (Process 2). When the random swing switch is OFF, only the left and right swing motor 11 is driven (process 3). Thereby, in the third embodiment,
Since the left and right swing motors 11 are also driven, more irregular air flow different from that of the second embodiment can be performed, so that the user's preference can be met. In addition, in the second and third embodiments, it is possible to supply a variable speed frequency to the swing center moving motor 13 to make the swing center moving speed variable.

In the case of operating the swing center moving motor irregularly, for example, the set position information of the swing center moving motor with respect to the center direction of the swing is previously set as the irregular set position information in time series. The start-of-random operation may cause the swing center movement motor to follow the irregular set position information based on the irregular set position information and the position information of the swing center position detection sensor. At this time, the setting position information is
The information is to rotate in the normal direction, reverse direction, or stop according to the user's preference and usage situation. Further, the operation of the switch in the above-described embodiment is performed from the switch circuit 7 of the control means, but the same operation can be performed by providing a signal receiving unit in the fan 1 and remotely operating from the external transmitting unit.

[0045]

As described above, according to the present invention, since the control means drives and controls the motor for swinging, the swing range can be changed. Therefore, it is possible to blow air according to the usage situation and the preference of the user. Moreover, since the swing control is performed by the control means, remote operation is easy and usability is improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a control means showing a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a fan head showing a first embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view seen from another direction of the fan head.

FIG. 4 is a cross-sectional view of the head of the fan.

FIG. 5 is an exploded perspective view of the relevant part.

FIG. 6 is a flowchart showing a processing procedure of the control means in FIG.

7 is a flowchart showing a processing procedure in a swing mode of FIG.

FIG. 8 is a flowchart showing a processing procedure of a first swing mode of FIG.

9 is a flowchart showing a processing procedure of a second swing mode of FIG.

FIG. 10 is a flowchart showing a processing procedure in a third swing mode of FIG.

FIG. 11 is a flowchart showing a processing procedure in a swing mode showing a second embodiment of the present invention.

FIG. 12 is a flowchart showing a processing procedure in a swing mode showing a third embodiment of the present invention.

[Explanation of symbols]

 1 Fan 6 Control Circuit 8 Blower Motor Drive Circuit 9 Left / Right Swing Motor Drive Circuit 10 Blower Motor 11 Left / Right Swing Motor 12 Swing Center Moving Motor Drive Circuit 13 Swing Center Moving Motor 18 Swing Center Adjusting Body 22 Cam Plate 26 Drive Link 30 Fan head 33 Swing link 38 Head position detection sensor 50 Swing center position detection sensor

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[Procedure amendment]

[Submission date] October 1, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief explanation of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a block diagram of a control means showing a first embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of a fan head showing a first embodiment of the present invention.

FIG. 3 is a vertical cross-sectional view seen from another direction of the fan head.

FIG. 4 is a cross-sectional view of the head of the fan.

FIG. 5 is an exploded perspective view of the relevant part.

FIG. 6 is a flowchart showing a processing procedure of the control means in FIG.

7 is a flowchart showing a processing procedure in a swing mode of FIG.

FIG. 8 is a flowchart showing a processing procedure of a first swing mode of FIG.

9 is a flowchart showing a processing procedure of a second swing mode of FIG.

FIG. 10 is a flowchart showing a processing procedure in a third swing mode of FIG.

FIG. 11 is a flowchart showing a processing procedure in a swing mode showing a second embodiment of the present invention.

FIG. 12 is a flowchart showing a processing procedure in a swing mode showing a third embodiment of the present invention.

[Explanation of symbols] 1 fan 6 control circuit 8 blower motor drive circuit 9 left and right swing motor drive circuit 10 blower motor 11 left and right swing motor 12 swing center movement motor drive circuit 13 swing center movement motor 18 swing center adjuster 22 Cam Plate 26 Drive Link 30 Fan Head 33 Swing Link 38 Head Position Detection Sensor 50 Swing Center Position Detection Sensor

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

FIG. 11

[Fig. 12]

[Figure 7]

[Figure 8]

[Figure 9]

[Figure 10]

Claims (3)

[Claims] 1. A fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and a head for swinging the fan head within a predetermined right and left range with respect to the base. A first motor, a second motor for swinging the fan head within a predetermined left and right range with respect to the base, separately from the swinging operation of the fan head by the first motor; And a control means for driving and controlling the second motor. 2. A fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and a forward / reverse motor for swinging the fan head with respect to the base. An electric fan, comprising: a control unit that normally rotates, reversely rotates, and stops the normal / reverse rotation motor to swing the head of the fan irregularly with respect to the base. 3. A fan head having a blower motor for rotationally driving a blower fan, a base for supporting the fan head, and a head for swinging the fan head in a predetermined right and left range with respect to the base. A first motor; and a second motor that, in addition to the swinging motion of the fan head by the first motor, rotates forward and backward to swing the fan head with respect to the base, the first motor While controlling the driving of the electric motor, the electric motor further comprises control means for rotating the second motor forward, reverse, and stopping in order to swing the head of the fan irregularly with respect to the base. ..