JPH04246291A - Electric fan - Google Patents

Abstract

PURPOSE:To surely direct a fan head part toward a transmitter on the basis of the signal of the transmitter by correcting the deflection between the direction calculated from the signal and the actual direction of the transmitter according to the correction data of the memory in a control circuit. CONSTITUTION:The infrared ray signal supplied from a transmitter 62 is received by a reception part 12 of a receiving device installed on the base board 3 of the stand 1 of a fan, and inputted into a control circuit, and the direction is shifted by an oscillation center shifting motor installed in a fan head part 41 by the output of the receiving device, and the oscillation center is directed to a transmitter 62. The intensity of the infrared ray signal supplied from the transmitter 62 is varied according to the distance, brightness on the periphery, etc., and since deflection is generated in the direction calculated by the receiving part 12 on the basis of the intensity, the oscillation center shifting motor is driven according to the correction data of the memory in the control circuit on the basis of the output of an oscillation center position detecting sensor installed in the fan head part 41, and the deflection is corrected. Accordingly, oscillation can be out correctly around the transmitter 62.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an electric fan that is remotely controlled by a transmitter.

0002

[Prior Art] Conventionally, this type of electric fan has been equipped with a transmitter that remotely controls the electric motor for driving the blower fan, and is configured to determine the position of the transmitter and direct the fan head in the direction of the transmitter. Japanese Unexamined Patent Publication No. 1-110895 (F04
D 25/08) etc.

[0003] This electric fan has a structure in which a support is rotatably supported on a base, a fan head is supported on the support, and the support is rotated by a motor to move in the direction of the fan head. , the receiving device that receives the transmitted signal from the transmitter is attached to the base, and since there is a gap between the center of rotation of the fan head, that is, the center of the support, and the receiving device, the transmission detected by the receiving device When the motor is controlled based on the direction of the fan, there is a drawback that the direction of the transmitter and the direction of the fan head are misaligned due to the distance between the center of the support and the receiving device.

[0004] Furthermore, when controlling a fan with a transmitter, the amount of reception at the receiving device changes depending on the distance from the transmitter to the fan, etc., and due to this change in the amount of reception, the amount of transmission calculated based on the output of the receiving device changes. There was a drawback that there was a discrepancy between the direction of the transmitter and the actual direction of the transmitter.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned drawbacks, and an object of the present invention is to provide a fan whose head can be reliably directed toward a transmitter.

[0006]

[Means for Solving the Problems] The present invention provides a fan head having an electric motor that rotationally drives a blower fan, a base that supports the fan head, and a base that supports the fan head in a left-right direction with respect to the base. a position detection sensor that detects the orientation of the fan head with respect to the base;
a transmitter that outputs the electric motor operation signal, a receiver that is provided on the base and receives the signal from the transmitter, and an output of the receiver that is placed at a position between the center of rotation of the electric fan and the receiver. a control circuit that detects the position of the transmitter based on the output of the correction means and the output of the position detection sensor, and drives the blowing direction changing motor to direct the fan head toward the blower; It is characterized by having the following.

The present invention also provides a fan head having an electric motor that rotationally drives a blower fan, a base that supports the fan head, and an air blower that moves the fan head laterally with respect to the base. a direction change motor, a position detection sensor that detects the orientation of the fan head with respect to the base, a transmitter that outputs the motor operation signal, etc., and is provided on the base,
A receiving device that receives a signal from a transmitter, a correction means that corrects the output of the receiving device according to the amount of reception by the receiving device, and a position of the transmitter based on the output of the correction means and the output of a position detection sensor. The present invention is characterized by comprising a control circuit that detects the direction of the fan and drives the fan direction changing motor to direct the head of the fan in the direction of the fan.

[0008]

[Operation] According to the structure of claim 1 of the present invention, the output of the receiving device is corrected by the correcting means according to the distance between the receiving device and the center of rotation of the fan head, and the output of the receiving device is corrected based on the output of the correcting means. The control circuit controls the blowing direction changing motor according to the current direction of the fan head and the direction of the transmitter calculated by the correction means, and directs the fan head toward the transmitter.

According to the structure of claim 2 of the present invention, the output of the receiving device is corrected by the correcting means according to the receiving device and the amount of reception, and the control circuit adjusts the current fan head based on the output of the correcting means. The fan head is directed toward the transmitter by controlling the fan direction changing motor according to the direction of the fan and the direction of the transmitter calculated by the correction means.

0010

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

Reference numeral 1 denotes a stand made of synthetic resin, which supports a column 2 so as to be movable up and down.The stand 1, column 2, and neck piece 20, which will be described later, constitute a base 3. Reference numeral 4 denotes a switch panel formed on the stand 1, which includes a power switch 5 for controlling power supply to and disconnection from a motor 42 (described later), and a power switch 5 for controlling the rotation speed of the motor 42 to control the amount of air blown by a blower fan 45 (described later). An air volume adjustment switch 6, a timer switch 7 that controls the operating time of the electric motor 42, and a left/right oscillation motor that oscillates the fan head 41 by oscillating a oscillation center adjustment body 32 relative to the neck piece 20, which will be described later. The swing adjustment switch 8 controls the energization to the fan head 41 and controls the swing operation, and the swing center adjustment switch 8 rotates the pivot shaft 43 of the fan head 41 relative to the swing center adjustment body 32 (described later) to adjust the swing center of the fan head 41. , a wind direction left movement switch 9 that moves the fan head 41 to the left with respect to the base 3, and a swing center movement motor 50 to be described later. , a wind direction right movement switch 10 for moving the fan head 41 to the right with respect to the base 3. 11 is a recess that supports a transmitter 63, which will be described later, in a substantially upright state.

Reference numeral 12 denotes a receiving section provided on the stand 1 and located forward of the oscillation center axis O of the fan head 41, that is, the center of the pivot shaft 43, which will be described later. It consists of a receiving device 16 having light receiving elements 13, 14, and 15, and a lens 17 that covers this receiving device. The receiving device 16 includes a holding member 18 that holds the light receiving elements 13, 14, and 15, and the first, second, and third light receiving elements 13, 14.
, 15, and a shield case 19 that shields the
The first, second, and third light receiving elements 13, 14, and 15 are clamped and fixed between the holding member 18 and the shield case 19. The first, second and third light receiving elements 1
3, 14, and 15 are light receiving elements that receive an infrared signal transmitted from a transmitter 63, which will be described later, and the first light receiving element 1
3 is disposed on the line connecting the support 2 and the receiving section 12 (on the front). The second light receiving element 14 is arranged 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 arranged on the right side of the first light receiving element 13.
and the second light receiving element 14 and the first light receiving element 1
The angle β between the fan head 41 and the third light receiving element 15 is set to be larger than a leftward swinging range angle a and a rightward swinging range angle b, respectively, with respect to the front of the fan head 41, which will be described later. That is, in this 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°, and the fan head is The swing range of the section 41 is approximately 65 degrees to the left and approximately 65 degrees to the right with respect to the line connecting the support 2 and the receiving section 12 (front).
°.

Reference numeral 20 denotes a neck piece which is pivotally supported on the bifurcated part 21 at the upper part of the support column 2 so as to be freely tiltable and vertically, and a bearing part which rotatably supports a cylindrical part 33 of a swing center adjusting body 32 which will be described later. 22 and boss 23 are integrally formed.

Reference numeral 24 denotes a left and right swing motor housed in the neck piece 20, which is composed of a synchronous motor that rotates in only one direction, and is screwed onto the boss 23. A cam plate 25 is attached to the output shaft 26 of the left-right oscillation motor 24 so that it does not rotate, and has an eccentric portion 27 integrally formed on the lower surface, and a semicircular shielding wall 28 integrally formed upward on the outer periphery. is forming. Reference numeral 29 designates a drive link in which a ring portion 30 formed at one end is loosely fitted into the eccentric portion 27 of the cam plate 25, and a shaft hole 31 is formed at the other end into which a lower eccentric shaft 34 of a swing center adjusting body 32, which will be described later, is loosely fitted. is forming.

Reference numeral 32 denotes a pivot 43 of the fan head 41, which will be described later.
A cylindrical part 33 that is loosely fitted and supported by the bearing part 22 of the neck piece 20, and the cylindrical part 3
a lower eccentric shaft 34 protruding downward at an eccentric position No. 3, and loosely fitting and supporting the shaft hole 31 of the drive link 29; a lower eccentric shaft 34 protruding upward at a position above the lower eccentric shaft 34;
It has an upper eccentric shaft 35 that loosely fits into and supports a shaft hole 60 of a swing link 58, which will be described later, and an insertion hole 36 through which a power cord (not shown) is inserted.

When the left and right swinging motor 24 is driven, the cam plate 25 rotates, and the rotation of the cam plate 25 causes the drive link 29 to move toward the bearing portion 2 of the neck piece 20.
The oscillation center adjusting body 32 is made to oscillate relative to 2. At this time, since the oscillation center moving motor 50 built in the fan head 41, which will be described later, is connected to the oscillation center adjusting body 32 via the swing link 58, the oscillation center moving motor 50 is In the non-driving state, the fan head 4
1 is integrated with the oscillation center adjustment body 32, and as the oscillation center adjustment body 32 moves in the left-right direction, the fan head 41 oscillates left and right. In this embodiment, by driving the left-right oscillation motor 24, the fan head 41 is oscillated approximately 33 degrees to the left and approximately 33 degrees to the right with respect to the center of oscillation.

Reference numeral 37 denotes a lid that covers the upper opening of the neckpiece 20, and is equipped with a head position detection sensor 38 for detecting the direction of the fan head 41, which will be described later. is constituted by an optical sensor consisting of a light emitting element 39 and a light receiving element 40. The head position detection sensor 38 is arranged such that the shielding wall 28 of the cam plate 25 passes between the light emitting element 38 and the light receiving element 39 as the cam plate 25 rotates. The rotational position of the cam plate 25, that is, the orientation of the fan head 41 with respect to the base 3 is detected by the change in the amount of light received by the light receiving element 40. That is, due to the 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 is moved closer to the base 3.
It is designed to determine which side of the swing limit, rightward or leftward, the vehicle is located at. Note that the light receiving element 40 is disposed inside the shielding wall 28, and the light receiving element 40 is arranged inside the shielding wall 28.
0 receives external light as much as possible.

Next, the fan head 41 will be explained. Reference numeral 42 denotes an electric motor having a pivot shaft 43 that is inserted into the oscillation center adjusting body 32 and supported with a loose fit, and a blower fan 45 is attached to the output shaft 44.
is designed to be removably attached. 46 is a front cover that covers the front part of the electric motor 42, and
A guard 47 surrounding 5 is detachably attached.

Reference numeral 48 denotes a mounting plate attached to the rear of the electric motor 42, and has a bent portion 49 at its rear end. Reference numeral 50 denotes a motor for moving the center of oscillation mounted on the upper surface of the mounting plate 48, and is constituted by a reversible synchronous motor that switches between forward and reverse directions by switching energization. A cam 51 is attached to the output shaft of the oscillating center moving motor 50, and has a gear 52 on its upper part and an eccentric shaft 53 on its lower face.

Reference numeral 54 denotes a swing center position detection sensor mounted on the mounting plate 48, which is composed of a variable resistor that changes the output voltage by rotating its shaft. It is equipped with gears 55 that mesh with each other. The gear 55 is formed in a semicircular shape, and prevents the oscillation center position detection sensor 54 from rotating too much and being damaged in the event that the oscillation center moving motor 50 rotates beyond its rotation range. It is supposed to be done. In addition, the gear 55
When the fan head 41 faces the front of the base 3, a matching mark 57 is formed that matches the matching mark 56 formed on the gear 52 of the cam 51, and a sensor 54 for detecting the center position of the oscillation between the products is formed. This is to prevent variations in output.

Reference numeral 58 denotes a swing link having an insertion hole 59 formed at one end loosely fitted to the eccentric shaft 53 of the cam 51, and an insertion hole 60 formed at the other end connected to the upper eccentric shaft of the oscillating center adjusting body 32. 35 so that it fits loosely.

When the swing center moving motor 50 is driven, the cam 51 rotates, and the rotation of the cam 51 causes the swing link 58 to rotate the pivot shaft 43 of the electric motor 42 relative to the swing center adjustment body 32. , the center of oscillation of the fan head 41 is moved. In addition, at this time, the swing center adjustment body 32
is connected to the left-right swing motor 24 via the drive link 29, so when the left-right swing motor 24 is stopped, the swing center adjustment body 32 is integrated with the neck piece 20, that is, the base 3. , the swing center adjustment body 32 does not move,
The pivot 43 of the fan head 41 rotates in the left-right direction relative to the oscillation center adjustment body 32, and the oscillation center of the fan head 41 moves. In this embodiment, by driving the oscillation center moving motor 50, the oscillation center of the fan head 41 can be moved approximately 33 degrees to the left and approximately 33 degrees to the right with respect to the front of the base 3. It is now possible to do so.

61 is a capacitor for driving the motor 42;
Reference numeral 62 denotes a rear cover that covers the electric motor 42, the oscillation center movement motor 50, the oscillation center position detection sensor 54, etc.; It is designed to be fixed by screwing to the portion 49.

The electric fan main body 41 is constructed as described above. Next, the transmitter will be explained based on FIG. 13.

Reference numeral 63 denotes a battery (not shown) and switches 64, 65, 66, 67, 68, which will be described later using the battery as a power source.
The transmitter has a transmitting means (not shown) that outputs an infrared signal in response to the operation of the transmitter. Reference numeral 64 denotes a wind direction adjustment switch formed on the transmitter 63, and when the fan body receives an infrared signal corresponding to the operation of the wind direction adjustment switch 64, it moves the fan head 41 in the direction of the transmitter 63 when the electric motor 42 is driven. When the electric motor 42 is stopped, the electric motor 42 is driven and the fan head 41 is directed toward the transmitter 63. Reference numeral 65 denotes an air volume control switch that outputs an infrared signal for controlling the rotational speed of the electric motor 42 and controlling the air volume. Reference numeral 66 denotes a swing adjustment switch which outputs an infrared signal to control the power supply to the left and right swing motor 24 and cause the fan head 41 to swing left and right. A timer switch 67 outputs an infrared signal to control the operating time of the electric motor 42. 68 is a power cut-off switch which outputs an infrared signal to stop the electric motor 42.

Next, the circuit will be described in detail with reference to FIG. 6
Reference numeral 9 denotes a first receiving section having a first light receiving element 13 that receives an infrared signal from the transmitter 63;
3, a bandpass filter section 71 that removes noise signals from the output of the amplification section 70, a detection section 72 that detects the output of the bandpass filter section 71,
It includes an amplification section 73 that amplifies the output of the detection section 72 and outputs it to a control circuit 89, which will be described later, and an AGC adjustment section 76, which will be described later. The output of the detection section 72 is the output of the detection section 80 of the second reception section 77 and the detection section 8 of the third reception section 83, which will be described later.
6 is outputted to a waveform shaping section 74, the waveform shaping section 74 shapes the waveform, and the resulting signal is outputted to a control circuit 89, which will be described later. Further, the output of the detection section 72 is outputted to the AGC amplification section 75 together with the output of the detection section 80 of the second reception section 77 and the output of the detection section 86 of the third reception section 83, which will be described later.
The C amplifying section 75 has the maximum output among the output from the first receiving section 69 to the control circuit 89, the output from the second receiving section 77 to the control circuit 89, and the output from the third receiving section 83 to the control circuit 89. The AGC adjusting sections 76, 82, 88 of each receiving section 69, 77, 83 are controlled so that the value becomes a predetermined value, and the signal is also output to a control circuit 89, which will be described later.

Reference numeral 77 denotes a second receiving section having a second light receiving element 14 for receiving the infrared signal from the transmitter 63; an amplifying section 78 for amplifying the output of the second light receiving element 14; a bandpass filter section 79 that removes a noise signal from the output of the bandpass filter section 79, a detection section 80 that detects the output of the bandpass filter section 79, and an amplification section that amplifies the output of the detection section 80 and outputs it to a control circuit 89 described later. 81, it has an AGC adjustment section 82 that adjusts the output of a control circuit 89, which will be described later, from the amplification section 81 based on the output of the AGC amplification section 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 amplifying section 84 for amplifying the output of the third light receiving element 15; a band-pass filter section 85 that removes noise signals from the output of the band-pass filter section 85, a detection section 86 that detects the output of the band-pass filter section 85, and an amplification section that amplifies the output of the detection section 86 and outputs it to a control circuit 89, which will be described later. 87, it has an AGC adjustment section 88 that adjusts the output from the amplification section 87 to a control circuit 89, which will be described later, based on the output of the AGC amplification section 75.

Reference numeral 89 denotes a control circuit consisting of a microcomputer, which controls the first, second and third receiving sections 69, 77, 83.
, a waveform shaping section 74, a switch circuit 90 having each switch 5, 6, 7, 8, 9, and 10 formed on the switch panel 4 of the base 3, the head vibration center position detection sensor 54, and the head position detection sensor. 37, and according to each input, a motor drive section 91, a left/right swing motor drive section 92, which will be described later.
It is designed to be outputted to a motor drive section 93 for moving the center of oscillation.

Reference numeral 91 denotes a motor drive unit that drives and controls the electric motor 42 based on the output of the control circuit 89, and 92 a left and right swing motor drive that drives and controls the left and right swing motor 24 based on the output of the control circuit 89. 93 is a swing center moving motor drive unit that drives the swing center moving motor 50 based on the output of the control circuit 89; 94 is the control circuit 8;
Air volume display L installed on stand 2 based on the output of 9
ED95, an indicator light control section that controls lighting of the timer time display LED 96 and the wind direction adjustment display LED 98; 97, a sounding device that controls a sounding device (not shown) disposed on the stand 2 based on the output of the control circuit 89; This is the control section.

Next, the operation will be explained in detail based on the flowcharts shown in FIGS. 18 to 24. First, Figures 18 and 19
The main routine will be explained based on the following. In step S1, the receiving unit 12 determines whether or not it has received an infrared signal from the transmitter 63. If the infrared signal is received, in step S2, the signal is activated by the wind direction adjustment switch 64. If it is a signal from the wind direction adjustment switch 64, the flow moves to a wind direction setting routine to be described later. If the received signal of the receiving section 12 is not an operation signal of the wind direction adjustment switch 64 in step S2, it is determined in step S3 whether or not the electric motor 42 is being driven. Transmitter 6
3 is provided with an air volume adjustment switch 65, a swing adjustment switch 66, a timer switch 67, and a power off switch 68 in addition to the wind direction adjustment switch 64.
Since it is an erroneous operation if these switches are operated in a non-driving state, if the electric motor 42 is in a non-driving state, the process moves to step S1.

If the electric motor 42 is being driven in step S3, the process moves to step S4, where it is determined whether the infrared signal from the transmitter 63 is a signal from the air volume control switch 65. If the signal from the transmitter 63 is the signal from the air volume adjustment switch 65 in step S4, the process moves to an air volume setting routine to be described later.

If the signal from the transmitter 63 is not a signal from the air volume adjustment switch 65 in step S4, the process proceeds to step S5, where it is determined whether or not the signal is from the swing adjustment switch 66. If it is a signal, the process moves to step S6 and it is determined whether or not the left-right swing motor 24 is being driven. If the left and right oscillation motor 66 is being driven in step S6, the left and right oscillation motor 24 is stopped in step S7, the left and right oscillation of the fan head 41 is stopped, and the fan head 41 is oriented in a desired direction. It can be held in an oriented position. If the left and right oscillation motor is stopped in step S6, the left and right oscillation motor is driven in step S8 to oscillate the fan head 41 in the left and right direction around the oscillation center to blow air over a wide range. Can be done. FIG. 5 shows the fan head 41 facing forward, FIG. 6 shows the fan head 41 swinging to the left, and FIG. 7 shows the fan head 41 facing right. FIG.

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

If the signal from the transmitter 63 is not a signal from the timer switch 67 in step S9, the process proceeds to step S10, where it is determined whether or not the signal is from the power off switch 68. For example, in step S11, the electric motor 42 is stopped to stop the operation, and in step S12, the left/right swing motor 24 and the swing center movement motor 50 are driven to move the fan head 41 in front of the base 3. turn to Therefore, the center of swing of the fan head 41 faces the front of the base 3, and when restarting, the user can reliably determine the position of the center of swing, improving usability. can. Furthermore, 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 explained based on FIG. 20. In step S13, the first, second, third
The outputs of the receiving sections 69, 77, and 83 are detected. If the outputs of these receiving sections 69, 77, and 83 are impossible, for example, the output of the second receiving section 77 and the output of the third receiving section 83
If both of the outputs of the transmitter 63 are larger than the outputs of the first receiver 69, that is, if the signal from the transmitter 63 is reflected by a wall or the like and is input, the input is invalidated and it does not operate. .

At this time, signals output from the first, second, and third receiving sections 69, 77, and 83 and the waveform shaping section 74 to the control circuit 89 based on the infrared signal from the transmitter 63 are shown in FIG.
The explanation will be based on. FIG. 17(a) shows the output waveform from the waveform shaping section 74, where a is a discrimination signal for determining that it is an infrared signal from the transmitter 63, b is a control content signal,
This wind direction setting routine is executed when a control content signal is output when the wind direction adjustment switch 65 is operated. c is a position signal, and when the control content signal when operating the wind direction control switch 65 is input to the control circuit 89,
After a predetermined time from the start of position signal input, in the example, 5 m
The first
Signals from the second and third receiving sections 69, 77, and 83 are input.

FIG. 17B shows the output waveform of the first receiver 69, FIG. 17C shows the output waveform of the second receiver 77, and FIG. 17D shows the output waveform of the third receiver 83. Each receiving section 6
The outputs of the receivers 9, 77, and 83 are inputted, and the relative light reception strength of each receiver 69, 77, and 83 with respect to the infrared signal of the transmitter 63 is determined. At this time, FIGS. 17(b), (c), (d)
The waveforms of each receiving section 69, 77, and 83 shown in FIG.
) The portion corresponding to the discrimination signal a of the output of the waveform shaping section 74 is the AGC amplification section 75 and each AGC adjustment section 76, 82.
, 88, the maximum value among the outputs of the respective receiving sections 69, 77, and 83 is adjusted to a predetermined value, and is greatly attenuated, but corresponds to the control content signal and position signal of the output of the waveform shaping section 74. The portion corresponding to the position signal has a substantially constant value, and the control circuit 89 can accurately detect the relative light reception intensity of each receiving section 69, 77, and 83 by reading the portion corresponding to the position signal. In particular, since the control circuit 89 starts inputting the position signal after a predetermined period of time from the start of inputting the position signal output from the waveform shaping section 74, the input level becomes constant, and each of the receiving sections 69, 77, 83 Relative light reception intensity can be detected more reliably.

Next, in step S14, the output from the AGC amplifying section 75 is detected, and in step S15, the output from the first, second, and third receiving sections 69, 77, and 83 and the AGC amplifying section 75 are detected.
The strength of the infrared signal is detected based on the output from the amplification section 75.

The strength of the infrared signal is determined by the receiving section 12 and the transmitter 6.
3, the remaining battery capacity of the transmitter 63, the surrounding brightness, etc., and is calculated from the ratio of the outputs of the first, second, and third receivers 69, 77, and 83 depending on the strength of the infrared signal. There may be a difference between the direction of the transmitted transmitter 63 and the actual direction of the transmitter 63.
Even if the fan head 41 is directed in the direction of the transmitter 63 calculated from the outputs of the receivers 9, 77, and 83, the receiver 12 and the fan head 4
There is a possibility that the direction of the transmitter 63 and the direction of the fan head 41 may be misaligned depending on the distance from the center axis O of the fan head 41. Therefore, in the memory of the microcomputer constituting the control circuit 89, an appropriate number of correction data according to the strength of the infrared signal and the distance between the receiving section 12 and the oscillation center axis O of the fan head 41 are stored. A look-up table is provided, and in step S16, correction data is derived from the look-up table according to the strength of the infrared signal detected in step S15, and in step S17, the first, second, and third
The direction of the transmitter 63 calculated from the ratio of the outputs of the receivers 69, 77, and 83 is corrected to calculate the direction of the transmitter. Furthermore,
Based on the calculation result, correction data is calculated using a correction data calculation formula using a neural network method, and a more accurate direction of the transmitter 63 is calculated.

In step S18, it is determined whether or not the left and right swing motor 24 is being driven, that is, whether or not the left and right swing is being performed. Move to motor drive routine.

[0042] If the head is not oscillated left and right in step S18, the process moves to step S19, and step S19
Whether or not the direction of the transmitter 63 calculated in step S17 is within a range in which the fan head 41 can be directed toward the fan 63 by driving the swing center movement motor 50. It is determined whether or not the angle is within about 33 degrees in the left and right directions, and the motor 5
If it is within the movement range defined by 0, it is determined in step S20 whether or not the fan head 41 is stopped facing forward with respect to the oscillation center adjustment body 32. Step S2
If the fan head 41 is stopped facing the front of the oscillation center adjusting body 32 at 0, the routine moves to a motor drive routine for moving the oscillation center. Further, if the direction of the transmitter 63 is beyond the movement range of the oscillation center movement motor 50 in step S18, and if the fan head 41 is not facing the front of the oscillation center adjustment body 32 in step S19, In step S21, a motor drive routine for moving the swing center and a motor drive routine for left and right swing are executed.

FIG. 2 shows the motor drive routine for moving the center of oscillation.
1, in step S22, the swing center position of the fan head 41 relative to the base 3 is detected based on the output of the swing center position detection sensor 54, and in step S23
In this step, it is determined whether the direction of the transmitter 63 calculated in step S17 matches the current direction of the center position of the head. If the direction of the transmitter 63 and the swing center position do not match in step S23, the fan head 41 moves to the transmitter 6 calculated in step S17 in step S24.
It is determined whether the fan head 41 is oriented to the right or not, and if it is oriented to the right, the oscillation center moving motor 50 is driven in step S25 to move the oscillation center of the fan head 41 to the left. Steps S22 to S25 are repeated to match the direction of the transmitter 63 calculated in step S17 with the position of the center of swing of the fan head 41. 5 is a diagram showing a state in which the swing center of the fan head 41 is directed to the front, FIG. 8 is a diagram showing a state in which the swing center of the fan head 41 is directed to the left, and FIG. FIG. 3 is a diagram showing a state in which the center of swing is directed to the right.

[0044] In step S23, the fan head 4
When determining whether or not the center position of the head oscillation corresponds to the position of the transmitter 63, the center position of the oscillation is within a predetermined angle in the left-right direction around the position of the transmitter 63 calculated in step S17, In this embodiment, if the transmitters 63 are within a range of about 2 degrees, it is determined that the transmitters 63 and the center position of the head oscillation coincide. Blow fan 4
Since the air blown in 5 is diffused, it can be blown over a relatively wide range centered on the direction of the fan head 41, and within a range of about 2 degrees, the direction of the fan 63 can be changed without moving the fan head 41. Air can be blown to Therefore, unnecessary driving of the swing center moving motor 50 can be reduced and durability can be improved.

In step S24, it is determined whether the fan head 41 is facing to the right from the direction of the transmitter 63 calculated in step S17, and if it is not facing to the right, that is,
If it is facing left, the oscillation center moving motor 50 is driven in step S26 to move the oscillation center of the fan head 41 to the right. Steps S22, S23, S24
, S26 are repeated to match the direction of the transmitter 63 calculated in step S17 with the position of the center of oscillation of the fan head 41. During this movement of the oscillation center and during adjustment of the direction of the fan head relative to the oscillation center by the left and right oscillation motor drive routine described later, the wind direction adjustment display LED 97 provided on the switch panel 4 of the stand 1 blinks. It is designed to display that it is.

When the direction of the transmitter 63 and the oscillation center position of the fan head 41 match in step S23, the oscillation center moving motor 50 is stopped in step S27.
In step S28, it is determined whether or not a later-described lateral oscillation motor drive routine has been completed, that is, whether or not the drive control of the lateral oscillation motor 24 has been completed. Note that steps S18, S19, and
Or, if the transition is made from S20 to the oscillation center movement motor drive routine, that is, when only the oscillation center movement motor 50 is drive-controlled to direct the fan head 41 toward the transmitter 63, the oscillation center movement motor drive routine is moved in the left-right direction. A drive end signal for the motor 24 is input.

If the drive control of the left and right oscillation motor 24 has been completed in step S28, it is determined in step S29 whether or not the electric motor 42 is being driven, and the electric motor 4
2 is not driven, the electric motor 42 is driven in step S30. Therefore, simply by controlling the wind direction adjustment switch 64 of the transmitter 63, the fan head 41 can be moved to the transmitter 6.
It is possible to move in the direction 3 and start blowing air, which improves operability. Further, the electric motor 42 is driven and starts blowing air after the fan head 41 faces the transmitter 63.
There will be no inconvenience such as blowing air to unnecessary places and scattering documents etc. until the direction is turned.

Next, the motor drive routine for left and right oscillation will be explained based on FIG. Whether or not the end of the light emitting element 3 in the rotational direction of the light emitting element 3 is detected.
9 and the light receiving element 40, and when the head position detection sensor 38 detects the end of the shielding wall 28, the wind direction setting routine described above is performed in step S33. A timer for driving the left and right swing motor 24 is set based on the direction of the transmitter 63 calculated in step S17.

If the head position detection sensor 38 does not detect the front end of the shielding wall 28 in the rotational direction in step S32, the head position detection sensor 38 detects the rear end of the shielding wall 28 in the rotational direction in step S34. In other words, 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 detects the end of the shielding wall 28. is detected, step S
In step S35, a timer for driving the left and right swing motor 24 is set based on the direction of the transmitter 63 calculated in step S17.

In step S36, the left and right swing motor 2 set in step S33 or step S35
4. It is determined whether or not the drive timer has ended. When the timer has ended, the process moves to step S37 to stop the left and right swing motor 24. In step S38, the drive control of the swing center movement motor 50 is completed. In other words, it is determined whether the motor drive routine for moving the swing center has been completed.

In this left-right oscillation motor drive routine, in step S19 of the wind direction setting routine described above, the direction of the transmitter 63 calculated in step S17 is determined by driving the oscillation center movement motor 50, so that the fan head 41
This is executed when it is determined that the angle is greater than the range in which the air blower 63 can be directed toward the blower 63, and in the embodiment, it is determined that the angle is approximately 33 degrees or more in the left and right directions relative to the front of the base 3, and is set in step S32 or step S34. Left and right swing motor 24
The 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 then moves the swing center by an angle equal to the difference between the movement limit and the direction of the transmitter 63. The time is now set. Therefore,
When the transmitter 63 is located beyond the movement range of the oscillation center, both the left and right oscillation motor 24 and the oscillation center movement motor 50 are driven to move the fan head 41 to the transmitter 63.
can be directed in the direction of

The motor driving routine for moving the oscillation center left and right is also executed when the fan head 41 is not facing the oscillation center position in step S20 of the above-mentioned wind direction setting routine, and is executed in step S32 or step S3.
The left and right oscillation motor 24 drive timer set in step 4 is a time period from when the left and right oscillation motor 24 detects the end of the shielding wall 28 of the cam plate 25 until the time when the fan head 41 is directed to the oscillation center position. The time is now set. Therefore, both the left and right oscillation motor 24 and the oscillation center movement motor 50 are driven, and the left and right oscillation motor 24 drives the fan head 4.
1 to the oscillation center position, the oscillation center to the transmitter 63, and the electric fan head 41 to the transmitter 63.

Since the left-right oscillation motor 24 and the oscillation center movement motor 50 are driven at the same time, they can be quickly directed in the direction of the blower 63.

[0054] Also, the air blow adjustment switch 64 of the transmitter 63
If the operated position is within a predetermined angle from the position where the oscillation center is moved to the movement limit relative to the base 3 and the fan head 41 is moved to the movement limit relative to the oscillation center, In the embodiment, in the range of about 65° to about 75° in the left and right directions with respect to the front surface of the base 3, air can be blown by moving the fan head 41 to the movement limit, so that the center of oscillation can be is moved to the movement limit, and the fan head 41 is moved to a position where the fan head 41 is moved to the movement limit with respect to the center of oscillation. If the above range is exceeded, the fan head 41 is not moved and the sound generation control circuit 97 operates the sound generation control device to generate an alarm sound to notify the user of misuse. It has become. Next, the air volume setting routine will be explained based on FIG. 23. In step S39, it is determined whether or not the "strong" operation is being performed, that is, whether the electric motor 42 is operating at high speed, and the "strong" operation is determined. If so, step S4
At 0, "breeze" operation is performed, that is, the electric motor 42 is operated at a very low speed. If the "strong" operation is not performed in step S39, it is determined in step S41 whether or not the "medium" operation is being performed, that is, whether the electric motor 42 is performing the medium speed operation, and whether or not the "medium" operation is being performed. For example, "strong" operation is performed in step S42. If it is not "medium" driving in step S41, "weak" driving is performed in step S43.
It is determined whether or not the electric motor 42 is operating at a low speed, that is, whether or not the electric motor 42 is operating at a low speed. If the motor is operating at a "low" speed, a "medium" operation is performed in step S44. If "weak" operation is not performed in step S43, "weak" operation is performed in step S45.

The timer setting routine will be explained based on FIG. 24. In step S46, it is determined whether or not a 4-hour timer has been set. If it has been set, the timer setting is canceled in step S47. If the 4-hour timer is not set in step S46, it is determined in step S48 whether or not the 2-hour timer is set, and if it is set, step S48 determines whether the 2-hour timer is set.
At 49, set a 4 hour timer. Step S
If the 2-hour timer is not set in Step 48, it is determined in Step S50 whether or not the 1-hour timer is set, and if it is set, Step S5
1, a 2-hour timer is set, and step S50
If the one hour timer is not set in step S52, the one hour timer is set.

Between each step of each of the above routines,
When the receiving section 12 receives the infrared signal from the transmitter 63, the current routine is executed, and then the routine returns to the main routine, where the receiving section 12 performs control based on the received infrared signal.

[0057]

As described above, according to the structure of claim 1 of the present invention, it is possible to eliminate the misalignment between the transmitter and the fan head due to the distance between the rotation center of the fan head and the transmitter. , the head of the electric fan can be reliably directed toward the transmitter.

As described above, according to the second aspect of the present invention, it is possible to eliminate the misalignment between the transmitter and the fan head due to the amount of reception by the receiving device, and to ensure that the fan head is connected to the transmitter. It has the advantage of being able to point in the direction of

[Brief explanation of the drawing]

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

FIG. 2 is a longitudinal sectional view of the head of the electric fan seen from another direction.

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

FIG. 4 is an exploded perspective view of the same essential parts.

FIG. 5 is a diagram with the head of the electric fan facing forward.

FIG. 6 is a diagram showing a state in which the head of the electric fan is swung leftward.

FIG. 7 is a diagram showing a state in which the head of the electric fan is swung rightward.

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

FIG. 9 is a diagram showing a state in which the center of oscillation of the head of the electric fan has been moved to the right.

FIG. 10 is a cross-sectional view of the same essential parts.

FIG. 11 is a sectional view of a receiving device of the same receiving section.

FIG. 12 is a diagram showing a switch panel of the same 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 the same circuit diagram.

FIG. 17 is a diagram of input waveforms to the control circuit.

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

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

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

FIG. 21 is a flowchart of a motor drive routine for moving the center of oscillation.

FIG. 22 is a flowchart of the left-right swing 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 swing motor 32 Swing center adjustment body 38 Head position detection sensor 41 Fan head 42 Electric motor 43 Pivot 45 Blow fan 50 Swing center movement motor 54
Head vibration center position detection sensor 63 Transmitter 89 Control circuit

Claims (2)

[Claims] 1. A fan head having an electric motor that rotationally drives a blower fan, a base that supports the fan head, and a blowing direction changing motor that moves the fan head laterally with respect to the base. a position detection sensor that detects the orientation of the fan head with respect to the base; a transmitter that outputs the motor operation signal, etc.; and a receiving device that is provided on the base and receives the signal from the transmitter. a correction means for correcting the output of the receiving device according to the position between the center of rotation of the electric fan and the receiving device; a position of the transmitter is detected based on the output of the correction means and the output of the position detection sensor; An electric fan, comprising: a control circuit that drives a direction changing motor to direct the head of the electric fan in the direction of the electric fan. 2. A fan head having an electric motor that rotationally drives a blower fan, a base that supports the fan head, and a blowing direction changing motor that moves the fan head laterally with respect to the base. a position detection sensor that detects the orientation of the fan head with respect to the base; a transmitter that outputs the motor operation signal, etc.; and a receiving device that is provided on the base and receives the signal from the transmitter. a correction means for correcting the output of the receiving device according to the amount received by the receiving device; a position of the transmitter is detected based on the output of the correction means and the output of the position detection sensor, and the motor for changing the blowing direction is driven. and a control circuit for directing the fan head toward the blower.