JP2931418B2 - Fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric fan for remote control.

[0002]

2. Description of the Related Art Conventionally, as a fan of this type, there has been provided a transmitter for remotely controlling the fan body, the position of the transmitter is determined, the center of the swing of the fan head is moved by a motor, and the fan head is moved to the transmitter. Japanese Patent Laid-Open No.
-110895 JP (F04D 25/08), JP-A-1-110894
(F04D 25/08). However, when operating the transmitter to start the blower fan, there is a drawback that documents and the like placed in the blower range until the fan head faces the transmitter are scattered by the blower fan. .

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and is directed to a device in which the direction of a fan head can be controlled by a transmitter. An object of the present invention is to provide a fan that does not need to be used.

[0004]

SUMMARY OF THE INVENTION The present invention provides a fan head having an electric motor for driving a blower fan to rotate, a base for supporting the fan head, and a right and left direction of the fan head with respect to the base. A motor for changing the direction of blowing air to be rotated, a head position detection sensor for detecting an orientation of the head of the fan with respect to the base, a transmitter for transmitting the motor control signal and the like, and a transmission provided on the base. A receiving device that receives a signal from the device, and based on the output of the receiving device and the output of the head position detection sensor, when the motor is stopped, drives the blower direction changing motor to direct the fan head toward the transmitter. A control circuit for driving the electric motor after changing the direction of the fan head and, in the motor driving state, driving the blower direction changing motor to direct the fan head to the transmitter.

[0005]

According to the above structure, when the control signal is transmitted by operating the transmitter, the receiving device receives the control signal. When the motor is stopped, the motor for changing the blowing direction is driven to transmit the fan head. After directing the fan, the motor is driven to blow air, and in the motor driving state, the blower direction changing motor is driven to direct the fan head to the transmitter.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings.

Reference numeral 1 denotes a synthetic resin stand which supports the column 2 so as to be able to move up and down. A base 3 is constituted by the stand 1, the column 2 and a neck piece 20, which will be described later. 4
Reference numeral denotes a switch panel formed on the stand 1. A power switch 5 for controlling power supply to the electric motor 42, which will be described later, and a blower fan 45, which controls the rotation speed of the electric motor 42, to be described later.
Air volume control switch 6 for controlling the air volume by means of electric motor 42
The timer switch 7 controls the operation time of the fan, and the power supply to the left and right oscillating motors 24 for oscillating the electric head 41 by oscillating the oscillating center adjuster 32 with respect to the neck piece 20 described later. A swing adjustment switch 8 for controlling the swing operation, a pivot 43 of a fan head 41 with respect to a swing center adjusting body 32 described later.
A wind direction left movement switch 9 for controlling the drive of a swing center moving motor 50 for rotating the fan head 41 to move the swing center of the fan head 41 so as to move the fan head 41 leftward with respect to the base 3. And a wind direction right movement switch 10 for controlling the drive of the swing center movement motor 50 and moving the fan head 41 rightward with respect to the base 3. Reference numeral 11 denotes a recess for supporting a transmitter 63 described later in a substantially upright state.

Reference numeral 12 denotes a receiving unit provided on the stand 1 and disposed in front of a swing center axis O of a fan head 41 to be described later, that is, a center of a pivot 43. Light receiving element
It comprises a receiving device 16 having 13, 14, and 15 and a lens 17 covering the receiving device. The receiving device 16 comprises a holding member 18 for holding light receiving elements 13, 14, 15 and a shield case 19 for shielding the first, second, and third light receiving elements 13, 14, 15; And shield case 19
The first, second, and third light receiving elements 13, 14, 15 are sandwiched and fixed between them. The first, second, and third light receiving elements 13, 14, and 15 are light receiving elements that receive an infrared signal transmitted from a transmitter 63 described later.
Is disposed on a line (front) connecting the support 2 and the receiving unit 12. The second light receiving element 14 is disposed on the left side of the first light receiving element 13 when viewed from the front of the base 3, and the third light receiving element 15 is disposed on the right side of the first light receiving element 13. Second light receiving element
14, the first light receiving element 13 and the third light receiving element 15
Are formed larger than the leftward swing angle angle a and the rightward swing angle angle b with respect to the front of the fan head 41, which will be described later. That is, in the present embodiment, the angle α between the first light receiving element 13 and the second light receiving element 14 and the angle β between the first light receiving element 13 and the third light receiving element 15 are both set to 77 °, The swing range of the part 41 is about 65 ° to the left with respect to the line (front) connecting the support 2 and the receiving part 12,
The angle is about 65 ° to the right.

Reference numeral 20 denotes a neck piece which is pivotally supported by the bifurcated portion 21 on the upper portion of the support column 2 so as to be freely raised and lowered. A bearing portion which pivotally supports a cylindrical portion 33 of a oscillating center adjuster 32 which will be described later. 22 and the boss
And 23 are integrally formed.

Reference numeral 24 denotes a left and right oscillating motor housed in the neck piece 20. The motor 24 is constituted by a synchronous motor that rotates only in one direction, and is fixed to the boss 23 by screws. Reference numeral 25 denotes a cam plate which is attached to the output shaft 26 of the left and right oscillating motor 24 so as not to rotate. The eccentric portion 27 is integrally formed on the lower surface, and a shielding wall 28 is integrally formed on the outer periphery in a semicircular shape upward. Has formed. Reference numeral 29 denotes a drive link for loosely fitting a ring portion 30 formed at one end to the eccentric portion 27 of the cam plate 25, and a shaft hole 31 for loosely fitting at the other end to a lower eccentric shaft 34 of a oscillating center adjusting body 32 described later.
Is formed.

Numeral 32 denotes a swing center adjuster for supporting a pivot 43 of a fan head 41 to be described later.
A lower eccentric shaft 34 projecting downwardly at the eccentric position of the cylindrical portion 33 and loosely supporting the shaft hole 31 of the drive link 29; It has an upper eccentric shaft 35 projecting upward at a position above the upper end 34 and loosely supporting a shaft hole 60 of a swing link 58 described later, and an insertion hole 36 for inserting a power cord (not shown).

When the left and right oscillating motor 24 is driven, the cam plate 25 rotates, and the rotation of the cam plate 25 causes the drive link 29 to move relative to the bearing portion 22 of the neck piece 20 for oscillating center adjustment. 32 is made to rock. still,
At this time, since the oscillating center moving motor 50 built in the electric fan head 41 described later is connected to the oscillating center adjusting body 32 via the swing link 58, the non-driving of the oscillating center moving motor 50 is performed. In this state, the fan head 41 is integrated with the swing center adjustment body 32, and the fan head 41 swings right and left as the swing center adjustment body 32 moves in the left and right direction. In the present embodiment, the fan head 41 is swung about 33 ° to the left and about 33 ° to the right with respect to the center of the swing by the drive of the left and right swing motor 24.

Reference numeral 37 denotes a lid which covers an opening on the upper surface of the neck piece 20. The lid 37 is provided with a head position detecting sensor 38 for detecting the direction of a fan head 41 which will be described later. Is constituted by an optical sensor including a light emitting element 39 and a light receiving element 40. The head position detection sensor 38 is disposed so that the shielding wall 28 of the cam plate 25 passes between the light emitting element 38 and the light receiving element 39 by the rotation of the cam plate 25. The rotation position of the cam plate 25, that is, the base 3
The direction with respect to is detected. That is, due to a change in the amount of light received by the light receiving element 40 when the end of the shielding wall 28 passes between the light emitting element 39 and the light receiving element 40, the fan head 41 moves rightward and leftward with respect to the base 3. Which side of the swing limit is located is determined. The light receiving element 40 is disposed inside the shielding wall 28,
40 minimizes the reception of external light.

Next, the fan head 41 will be described. Reference numeral 42 denotes an electric motor having a pivot 43 which is inserted into the swing center adjustment body 32 and is loosely supported. A blower fan 45 is detachably mounted on an output shaft 44. Reference numeral 46 denotes a front cover which covers the front part of the electric motor 42, and a guard 47 surrounding the blower fan 45 is detachably mounted.

Reference numeral 48 denotes a mounting plate mounted on the rear portion of the electric motor 42, and has a bent portion 49 formed at the rear end. 50 is the mounting plate
48 A swinging center movement motor mounted on the upper surface, and is constituted by a reversible rotation synchronous motor that switches between forward and reverse rotation by switching power supply. Reference numeral 51 denotes a cam mounted on the output shaft of the oscillating center moving motor 50.
Are integrally formed.

Numeral 54 denotes a swing center position detecting sensor mounted on the mounting plate 48, which is constituted by a variable resistor which varies the output voltage by rotating its shaft. A meshing gear 55 is mounted. The gear 55 is formed in a semicircular shape, and when the oscillating center moving motor 50 rotates more than the rotation range, the oscillating center position detection sensor 54 prevents excessive rotation and damage. It is supposed to. The gear 55 has a gear 51 of the cam 51 when the fan head 41 faces the front of the base 3.
A phase mark 57 that matches the phase mark 56 formed on the 52 is formed to prevent variation in the output of the swing center position detection sensor 54 between products.

Reference numeral 58 denotes an insertion hole 59 formed at one end of the cam.
With the swing link loosely fitted to the eccentric shaft 53 of 51, the insertion hole 60 formed at the other end is loosely fitted to the upper eccentric shaft 35 of the swing center adjustment body 32.

When the motor 50 is moved, the cam 51 rotates.
58 rotates the pivot 43 of the electric motor 42 with respect to the swing center adjusting body 32 to move the swing center of the fan head 41. At this time, since the oscillating center adjusting body 32 is connected to the left and right oscillating motor 24 via the drive link 29, the oscillating center adjusting body 32 is in the state of the neck piece when the left and right oscillating motor 24 is stopped. 20, that is, integrated with the base 3, the oscillating center adjustment body 32 does not move, and the pivot 43 of the fan head 41 rotates in the left-right direction with respect to the oscillating center adjustment body 32, and the fan head 41 The swing center moves. In the present embodiment, by driving the motor 50 for moving the oscillating center, the oscillating center of the fan head 41 can be moved about 33 ° to the left and about 33 ° to the right with respect to the front of the base 3. I can do it.

Reference numeral 61 denotes a condenser for driving the electric motor 42, and 62 denotes a rear cover which covers the electric motor 42, the motor 50 for moving the center of the swing, the center position detection sensor 54 for the swing, and the like. At the same time, the rear portion is fixed to the bent portion 49 of the mounting plate 48 by screwing.

The above constitutes the electric fan main body 41.
Next, the transmitter will be described with reference to FIG.

Reference numeral 63 denotes a transmitter having a battery (not shown) and a transmitting means (not shown) for outputting an infrared signal according to the operation of each of switches 64, 65, 66, 67 and 68 described later using the battery as a power source. It is. Reference numeral 64 denotes a wind direction adjustment switch formed on the transmitter 63.When the fan body receives an infrared signal according to the operation of the wind direction adjustment switch 64, the fan head 41 moves in the direction of the transmitter 63 when the electric motor 42 is driven. When the motor 42 is stopped, the motor 42 is driven and the fan head 41 is directed to the transmitter 63 while the motor 42 is stopped. Reference numeral 65 denotes an air volume control switch which outputs an infrared signal for controlling the rotation speed of the electric motor 42 to control the air volume. Reference numeral 66 denotes a swing adjustment switch that controls the energization of the left and right swing motor 24 and outputs an infrared signal that causes the fan head 41 to swing left and right. 67 is a timer switch,
An infrared signal for controlling the operation time of the electric motor 42 is output. Reference numeral 68 denotes a power-off switch which outputs an infrared signal for stopping the electric motor 42.

Next, the circuit will be described in detail with reference to FIG. 69
Is a first receiving unit having a first light receiving element 13 for receiving an infrared signal from the transmitter 63; an amplifier 70 for amplifying the output of the first light receiving element 13; noise from the output of the amplifier 70 A band-pass filter section 71 for removing a signal, a detection section 72 for detecting an output of the band-pass filter section 71, an amplification section 73 for amplifying an output of the detection section 72 and outputting the amplified signal to a control circuit 89 described later, An AGC adjustment unit 76 is provided. The output of the detection unit 72 is output to the waveform shaping unit 74 together with the output of the detection unit 80 of the second reception unit 77 and the output of the detection unit 86 of the third reception unit 83, which will be described later. Control circuit that will be described later
Output to 89. The output of the detector 72 is output to the AGC amplifier 75 together with the output of the detector 80 of the second receiver 77 and the output of the detector 86 of the third receiver 83, which will be described later.
The amplifier 75 has the largest output among the output from the first receiver 69 to the control circuit 89, the output from the second receiver 77 to the control circuit 89, and the output from the third receiver 83 to the control circuit 89. The AGC adjusters 76, 82, 88 of each of the receivers 69, 77, 83 so as to have a predetermined value.
And outputs it to a control circuit 89 described later.

Reference numeral 77 denotes a second receiving section having a second light receiving element 14 for receiving an infrared signal from the transmitter 63. An amplification section 78 for amplifying the output of the second light receiving element 14; , A band-pass filter section 79 for removing a noise signal from the output of the band-pass filter section 79, a detection section 80 for detecting the output of the band-pass filter section 79, an amplification section for amplifying the output of the detection section 80 and outputting the amplified output to a control circuit 89 described later. 81, an AGC adjusting unit 82 for adjusting the output of the control circuit 89 described later from the amplification unit 81 based on the output of the AGC amplification unit 75.

Reference numeral 83 denotes a third receiving section having a third light receiving element 15 for receiving an infrared signal from the transmitter 63. An amplification section 84 for amplifying the output of the third light receiving element 15, and an amplification section 84. , A band-pass filter unit 85 that removes a noise signal from the output of the band-pass filter unit 85, a detection unit 86 that detects the output of the band-pass filter unit 85, and an amplification unit that amplifies the output of the detection unit 86 and outputs the amplified signal to a control circuit 89 described later. 87, an AGC for adjusting an output from the amplification unit 87 to a control circuit 89 described later based on an output of the AGC amplification unit 75
An adjusting unit 88 is provided.

Reference numeral 89 denotes a control circuit composed of a microcomputer. The first, second, and third receiving units 69, 77, and 83, the waveform shaping unit 74, and the switches 5 formed on the switch panel 4 of the base 3; A switch circuit 90 having 6, 7, 8, 9, 10;
The swing center position detection sensor 54 and the head position detection sensor
37, and according to each input, a motor drive unit 9 described later.
1. Output to the left and right swing motor drive unit 92 and the swing center movement motor drive unit 93.

Reference numeral 91 denotes a motor drive unit for driving and controlling the motor 42 based on the output of the control circuit 89, and 92 denotes a control circuit 89
A left / right oscillating motor drive unit that drives and controls the left / right oscillating motor 24 based on the output of the oscillating center moving motor drive unit 93 that drives the oscillating center moving motor 50 based on the output of the control circuit 89. , 94 are indicator light control units for controlling lighting of the air volume display LED 95, timer time display LED 96, and wind direction adjustment display LED 98 provided on the stand 2 based on the output of the control circuit 89, and 97 is the output of the control circuit 89. Is a sounding device control section that controls a sounding device (not shown) disposed on the stand 2 based on the sound signal.

Next, the operation will be described in detail with reference to the flowcharts shown in FIGS. First, FIGS. 18 and 19
The main routine will be described based on the following. In step S1, it is determined whether or not the receiving unit 12 has received an infrared signal from the transmitter 63.
Then, it is determined whether or not the signal is a signal when the wind direction adjustment switch 64 is operated. If the signal is the signal of the wind direction adjustment switch 64, the process proceeds to a wind direction setting routine described later. Step S
If the received signal of the receiving unit 12 is not an operation signal of the wind direction adjusting switch 64 in 2, the control unit determines in step S3 whether the electric motor 42 is driven. The transmitter 63 is provided with an air volume control switch 65, a swing control switch 66, a timer switch 67, and a power-off switch 68 in addition to the wind direction control switch 64, and these switches are operated when the motor 42 is not driven. Is an erroneous operation, and if the motor 42 is not driven, the process proceeds to step S1.

If it is determined in step S3 that the electric motor 42 is being driven, the process proceeds to step S4, where it is determined whether or not the infrared signal from the transmitter 63 is a signal from the air volume adjustment switch 65. If the signal from the transmitter 63 is the signal of the air volume adjustment switch 65 in step S4, the process proceeds to the air volume setting routine described later.

If it is determined in step S4 that the signal from the transmitter 63 is not the signal of the air volume adjustment switch 65, the process proceeds to step S5.
Then, it is determined whether or not the signal is from the swing adjustment switch 66. If the signal is from the swing adjustment switch 66, the process proceeds to step S6.
Then, it is determined whether or not the left and right swinging motors 24 are being driven. If the left and right oscillating motor 66 is driven in step S6, then in step S7 the left and right oscillating motor is driven.
24 can be stopped, the left and right swing of the fan head 41 can be stopped, and the fan head 41 can be held in a desired orientation. If the left and right oscillating motors are stopped in step S6, the left and right oscillating motors are driven in step S8 to cause the fan head 41 to oscillate in the left and right directions around the oscillating center to blow air over a wide area. Can be. FIG. 5 shows a state in which the fan head 41 faces the front, and FIG.
FIG. 41 shows a head swinging state to the left, and FIG.
Is a diagram showing a state in which is turned rightward.

If it is determined in step S5 that the signal from the transmitter 63 is not the signal from the swing adjustment switch 66, step S9
Then, it is determined whether or not the signal is a timer switch 67 signal. If the signal is a timer switch 67 signal, the process proceeds to a timer setting routine described later.

If the signal from the transmitter 63 is not the signal of the timer switch 67 in step S9, step S10
Then, it is determined whether or not the signal is the signal of the power-off switch 68. If the signal is the signal of the power-off switch 68, the process proceeds to step S11, in which the motor 42 is stopped to stop the operation.
Left and right oscillating motor 24 and oscillating center moving motor 12
The fan 50 is driven so that the fan head 41 faces the front of the base 3. Therefore, the swing center of the fan head 41 is directed toward the front of the base 3, and when restarting, the user can reliably determine the position of the swing center, and the usability can be improved. it can. Further, since the fan head 41 is located in front of the base 3, repacking can be easily performed.

Next, the wind direction setting routine will be described with reference to FIG. 20. In step S13, the outputs of the first, second and third receiving sections 69, 77 and 83 are detected. Each of these receiving sections 69,
If the outputs of 77 and 83 are impossible outputs, for example,
When both the output of the second receiver 77 and the output of the third receiver 83 are larger than the output of the first receiver 69, that is, when the signal of the transmitter 63 is reflected and input to a wall or the like, The input is invalidated and does not operate.

At this time, based on the infrared signal from the transmitter 63, the first, second, and third receiving units 69, 77, 83 and the waveform shaping unit 74
Will be described with reference to FIG. FIG. 17A shows an output waveform from the waveform shaping unit 74, where a is a determination signal for determining that the signal is an infrared signal from the transmitter 63, and b is a control content signal. Is a case where a control content signal when the wind direction adjustment switch 65 is operated is output. c is a position signal. When a control content signal when the wind direction control switch 65 is operated is input to the control circuit 89, the position signal is input after a predetermined time from the start of input of the position signal, in this embodiment, after elapse of 5 msec. During this time, signals from the first, second, and third receiving units 69, 77, and 83 are input.

FIG. 17B shows an output waveform of the first receiving section 69,
(c) shows the output waveform of the second receiving unit 77, (d) shows the output waveform of the third receiving unit 83, and the control circuit 89 inputs the output of each of the receiving units 69, 77 and 83, and Each receiver 6 for infrared signals
The relative light receiving intensity of 9, 77, 83 is determined. At this time, the waveforms of the receiving units 69, 77, and 83 shown in FIGS. 17B, 17C, and 17D correspond to the discrimination signal a of the output of the waveform shaping unit 74 shown in FIG.
The part corresponding to AGC amplification unit 75 and each AGC adjustment unit 7
6, 82, 88, the maximum value of the outputs of the receiving sections 69, 77, 83 is adjusted to be a predetermined value, and greatly attenuated, but the control content signal and the position of the output of the waveform shaping section 74 are controlled. The portion corresponding to the signal has a substantially constant value, and by reading the position signal, the control circuit 89 can accurately detect the relative light receiving intensity of each of the receiving units 69, 77, and 83. In particular, since the control circuit 89 starts inputting the position signal after a predetermined time from the start of inputting the position signal of the output of the waveform shaping unit 74, the input level becomes constant, and each of the receiving units 69,
The relative light receiving intensity of 77 and 83 can be detected more reliably.

Next, at step S14, the AGC amplification unit
The output of the AGC amplifier 75 is detected, and the intensity of the infrared signal is detected based on the outputs of the first, second, and third receivers 69, 77, and 83 and the output of the AGC amplifier 75 in step S15.

The strength of the infrared signal varies depending on the distance between the receiver 12 and the transmitter 63, the remaining capacity of the battery of the transmitter 63, the brightness of the surroundings, and the like. There may be a deviation between the direction of the transmitter 63 calculated from the ratio of the outputs of the third receiving units 69, 77, and 83 and the actual direction of the transmitter 63, and the first, second, and third receiving units Even if the fan head 41 is directed in the direction of the transmitter 63 calculated from the output of 69, 77, 83,
There is a possibility that the direction of the transmitter 63 and the direction of the fan head 41 may be displaced due to the distance between the receiving unit 12 and the oscillation center axis O of the fan head 41. Therefore, in the memory of the microcomputer constituting the control circuit 89, a look having an appropriate number of correction data corresponding to the strength of the infrared signal and the interval between the receiving unit 12 and the oscillation center axis O of the fan head 41 is provided. An up-table is provided, and in step S16, correction data is derived from the look-up table in accordance with the intensity of the infrared signal detected in step S15.
The transmitter 63 calculated from the ratio of the outputs of the third receivers 69, 77, 83
Is corrected to calculate the direction of the transmitter. Further, the calculation result is calculated by a correction data calculation formula using a neural network method, and correction data is calculated.
The accuracy is further improved.

In step S18, the left and right swinging motor 24
It is determined whether or not the camera is being driven, that is, whether or not the camera is swinging left and right. If the camera is swinging left and right, the process proceeds to a motor driving routine for swing center movement to be described later.

If the left and right swing has not been performed in step S18, the process proceeds to step S19. In step S19, the direction of the transmitter 63 calculated in step S17 drives the motor 50 for centering the swing to move the fan head. It is determined whether or not 41 is within a range in which it can be directed to the blower 63, and in the present embodiment, whether or not it is within approximately 33 ° in the left-right direction with respect to the front of the base 3, and the movement range by the motor 50 for moving the swing center. If it is within the range, it is determined in step S20 whether or not the fan head 41 is stopped in a state facing the front with respect to the swing center adjustment body 32. If the fan head 41 is stopped in a state where the fan head 41 faces the front of the swing center adjusting body 32 in step S20, the process proceeds to a swing center moving motor drive routine. In addition, when the direction of the transmitter 63 is equal to or more than the movement range of the swing center movement motor 50 in step S18, and when the fan head 41 is not facing the front of the swing center adjustment body 32 in step S19. Executes a motor drive routine for moving the swing center and a right and left swing motor in step S21.

FIG. 2 shows a motor drive routine for moving the swing center.
In step S22, the swing center position of the fan head 41 with respect to the base 3 is detected based on the output of the swing center position detection sensor 54 in step S22, and in step S23 the transmitter 63 calculated in step S17 is detected. It is determined whether or not the direction and the current direction of the swing center position match. If the direction of the transmitter 63 does not match the swing center position in step S23, it is determined in step S24 whether the fan head 41 is more rightward than the direction of the transmitter 63 calculated in step S17. In step S25, the motor 50 for swing center movement is driven to move the fan head 41
Move the center of the swing to the left. Steps S22 to S25 are repeated, and the transmitter calculated in step S17
The direction of 63 and the position of the swing center of the fan head 41 are matched. FIG. 5 is a diagram illustrating a state in which the swing center of the fan head 41 is directed to the front, FIG. 8 is a diagram illustrating a state in which the swing center of the fan head 41 is directed to the left, and FIG. It is a figure showing the state where the swing center was turned to the right.

When it is determined in step S23 whether the center position of the swing of the fan head 41 and the position of the transmitter 63 match, the center position of the swing of the transmitter 63 calculated in step S17 is determined. Within a predetermined angle in the left and right direction around the position,
In the present embodiment, when the transmitter 63 is within the range of about 2 °, it is determined that the transmitter 63 and the swing center position match. Since the air blown by the blower fan 45 is diffused, it can be blown over a relatively wide range centering on the direction of the fan head 41, and within a range of about 2 °, the fan 63 can be moved without moving the fan head 41. Can be blown in the direction of Therefore, unnecessary driving of the swing center moving motor 50 can be reduced, and the durability can be improved.

In step S24, it is determined whether or not the fan head 41 is pointing rightward from the direction of the transmitter 63 calculated in step S17. If not, ie, if it is pointing left, it is determined in step S26. Motor for swing center movement
50 is driven to move the swing center of the fan head 41 to the right. Steps S22, S23, S24, and S26 are repeated to match the direction of the transmitter 63 calculated in step S17 with the position of the swing center of the fan head 41. During the movement of the swing center and during the adjustment of the direction of the fan head with respect to the swing center according to the left and right swing motor drive routine to be described later, the wind direction adjustment display LED 97 provided on the switch panel 4 of the stand 1 is blinked to adjust the wind direction. Is displayed.

If the direction of the transmitter 63 coincides with the swing center position of the fan head 41 in step S23, the flow proceeds to step S27.
In step S5, the motor 50 for moving the swing center is stopped.
In 28, it is determined whether or not a left / right swing motor drive routine to be described later has ended, that is, whether or not the drive control of the left / right swing motor 24 has ended. Incidentally, when the process is shifted from the step S18, S19 or S20 in the above-mentioned wind direction setting routine to the motor drive routine for moving the swing center, that is,
Drive control only the motor 50 for moving the center of the swing
When turning 41 toward the transmitter 63, the drive end signal of the left / right movement motor 24 is input.

In step S28, the left and right oscillating motor 24
Is completed, it is determined in step S29 whether or not the electric motor 42 is driven. If the electric motor 42 is not driven, the electric motor 42 is driven in step S30. Therefore, the fan head 41 can be moved in the direction of the transmitter 63 and the blowing can be started only by controlling the wind direction adjustment switch 64 of the transmitter 63, and the operability can be improved. In addition, the electric motor 42 starts driving the fan after the fan head 41 faces the direction of the transmitter 63 and starts blowing air. There is no inconvenience such as blowing documents to the air.

Next, a description will be given of a left / right swing motor driving routine with reference to FIG. 22. In step S31, the left / right swing motor 24 is driven, and in step S32, the head position detection sensor 38 detects the shielding wall of the cam plate 25. Whether the end of the tip of the rotation direction 28 has been detected, that is, the light emitting element 39 and the light receiving element 40
It is determined whether or not the end of the shielding wall 28 has entered between them, and when the head position detection sensor 38 detects the end of the shielding wall 28, it is calculated in step S17 in the above-described wind direction setting routine in step S33. A timer for driving the left and right swinging motor 24 is set based on the direction of the transmitter 63.

In step S32, the head position detecting sensor
In a case where 38 does not detect the end of the shielding wall 28 on the front end side in the rotation direction, in step S34, it is determined whether the head position detection sensor 38 has detected the end of the shielding wall 28 on the rear end side in the rotation direction, It is determined whether the end of the shielding wall 28 has come out from between the light emitting element 39 and the light receiving element 40, and the head position detection sensor 38
Is detected, the process proceeds to step S35.
Based on the direction of the transmitter 63 calculated in step 17, a timer for driving the left and right oscillating motor 24 is set.

In step S36, it is determined whether or not the driving timer for the left and right swing motor 24 set in step S33 or step S35 has expired. When the timer has expired, the flow advances to step S37 to move to the left and right swing motor 24. Is stopped, and in step S38, it is determined whether the drive control of the swing center movement motor 50 has been completed, that is, whether the drive center movement motor drive routine has been completed.

In the left-right swing motor driving routine, the direction of the transmitter 63 calculated in step S17 drives the swing center movement motor 50 in step S19 of the above-described wind direction setting routine, so that the fan head 41 is rotated. The blower 63
This is executed when it is determined that the angle is not less than about 33 ° in the left and right directions with respect to the front of the base 3 in the embodiment, and the left and right necks set in step S32 or step S34. The shake motor 24 drive timer drives the swing center movement motor 50 to move the swing center in the direction of the transmitter 63 to the movement limit, and calculates the difference between the movement limit and the direction of the transmitter 63. The time to move the angle is set. Therefore, when the transmitter 63 is located at a position beyond the movement range of the swing center, the left and right swing motors 24
And the motor 50 for moving the swinging center are driven, and the fan head 41 can be directed toward the transmitter 63.

The motor driving routine for moving the left and right oscillating center is also executed when the fan head 41 is not oriented to the oscillating center position in step S20 of the above-described wind direction setting routine, and step S32 or step S34 is executed. The driving timer for the left and right oscillating motor 24, which is set in, is the time from when the left and right oscillating motor 24 detects the end of the shielding wall 28 of the cam plate 25 to when the fan head 41 turns to the center of the oscillating motion. Is set. Accordingly, both the left and right oscillating motor 24 and the oscillating center moving motor 50 are driven, and the left and right oscillating motors 24 direct the fan head 41 to the oscillating center position, and the oscillating center to the transmitter 63. The fan head 41 can be directed toward the transmitter 63.

Since the left and right oscillating motors 24 and the oscillating center moving motor 50 are simultaneously driven, they can be directed to the blower 63 quickly.

The position at which the air blow control switch 64 of the transmitter 63 is operated moves the swing center with respect to the base 3 to the movement limit, and moves the fan head 41 with respect to the swing center to the movement limit. In the embodiment, if the angle is within a predetermined angle from the moved position, the fan head 41 is moved to the movement limit if it is in the range of about 65 ° to about 75 ° in the left and right directions with respect to the front of the base 3 respectively. Then, the fan can be blown, so that the swing center is moved to the movement limit and the fan head 41 is moved to the position where the fan head 41 has been moved to the movement limit with respect to the swing center. Also, if the distance is outside the above range, the fan head 41 is not moved, and the sounding control device 97 activates the sounding control device to generate an alarm sound to notify the user of misuse. Has become.

Next, the air volume setting routine will be described with reference to FIG. 23. In step S39, it is determined whether or not the "strong" operation is being performed, that is, whether or not the electric motor 42 is operating at a high speed. If the operation is being performed, step S
At 40, the "breeze" operation, that is, the electric motor 42 is operated at an extremely low speed. If the "strong" operation is not being performed in step S39, it is determined whether or not the "medium" operation is being performed in step S41, that is, whether or not the electric motor 42 is performing a medium speed operation. For example, a "strong" operation is performed in step S42. If the "medium" operation is not being performed in step S41, it is determined whether or not the "weak" operation is being performed in step S43, that is, whether or not the electric motor 42 is operating at a low speed. In step S44, "middle" operation is performed. If "weak" operation is not performed in step S43, "weak" operation is performed in step S45.

The timer setting routine will be described with reference to FIG. 24. In step S46, it is determined whether or not a 4-hour timer has been set. If so, the timer setting is canceled in step S47. Step S46
If the four-hour timer is not set in step S48, it is determined whether or not a two-hour timer is set in step S48. If so, a four-hour timer is set in step S49. If the two-hour timer is not set in step S48, step S48
At 50, it is determined whether or not a one-hour timer is set. If it is set, a two-hour timer is set at step S51. If a one-hour timer is not set at step S50, at step S52, Set a one hour timer.

Between each step of each of the above routines,
When the receiving unit 12 receives the infrared signal of the transmitter 63, the process returns to the main routine while executing the routine being executed, and performs control based on the infrared signal received by the receiving unit 12.

[0054]

As described above, according to the present invention, when the motor is stopped, the air is blown after the airflow direction is changed. Therefore, there are inconveniences such as blowing air to a place where airflow is not required during the airflow direction change and skipping documents. And the like.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a fan head according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view of the fan head as viewed from another direction.

FIG. 3 is a cross-sectional view of the fan head.

FIG. 4 is an exploded perspective view of the main part.

FIG. 5 is a view showing a state where the fan head is directed to the front.

FIG. 6 is a diagram showing a state where the fan head is swung to the left.

FIG. 7 is a view showing a state where the fan head is swung rightward.

FIG. 8 is a diagram showing a state in which the swing center of the fan head is moved to the left.

FIG. 9 is a view showing a state in which the swing center of the fan head is moved rightward.

FIG. 10 is a sectional view of the main part.

FIG. 11 is a cross-sectional view of a receiving device of the receiving unit.

FIG. 12 is a view showing a switch panel of the base.

FIG. 13 is a front view of the transmitter.

FIG. 14 is a top view illustrating the operation of the electric fan.

FIG. 15 is an external perspective view of the electric fan.

FIG. 16 is a circuit diagram of the same.

FIG. 17 is an input waveform diagram to the control circuit.

FIG. 18 is a view showing a flowchart of the main routine.

FIG. 19 is a view showing a flowchart of the main routine.

FIG. 20 is a flowchart of the same wind direction setting routine.

FIG. 21 is a flowchart of a motor-driven routine for moving the swing center.

FIG. 22 is a flowchart of the left-right swinging motor drive routine.

FIG. 23 is a flowchart of the air volume setting routine.

FIG. 24 is a flowchart of the timer setting routine.

[Explanation of symbols]

 3 Base 12 Receiving unit 16 Receiving device 24 Left and right oscillating motor 32 oscillating center adjuster 38 Head position detection sensor 41 Fan head 42 Electric motor 43 Axis 45 Blower fan 50 Motor for oscillating center moving 54 Axis of oscillating center Detection sensor 63 Transmitter 89 Control circuit

Continuation of the front page (51) Int.Cl. ⁶ identification code FI F04D 25/10 302 F04D 25/10 302K (58) Investigated field (Int.Cl. ⁶ , DB name) F04D 27/00 F04D 25/08 F04D 25/10

Claims (1)

(57) [Claims] 1. A fan head having an electric motor for rotating and driving a blower fan, a base supporting the fan head, and a fan direction changing means for rotating the fan head in the left-right direction with respect to the base. A motor, a head position detection sensor that detects an orientation of the fan head with respect to the base, a transmitter that transmits the motor control signal, and the like, and a reception that is provided on the base and receives a signal from the transmitter. Based on the output of the device and the output of the receiving device, the output of the head position detection sensor, when the motor is stopped, the blower direction changing motor is driven to direct the fan head to the transmitter, and the electric motor after the direction of the fan head is changed. And a control circuit for driving the blower direction changing motor in the motor drive state to direct the fan head to the transmitter.