JPS63120895A - Fan - Google Patents

Abstract

PURPOSE:To enable blowing direction to be changed at will in a fan with an optical wireless remote control deice by providing additionally a direction searching receiver having narrow directivity in the same axial direction as blowing direction axis. CONSTITUTION:When the command of change in blowing direction is input from a command input section 2 of an optical signal transmitter 1, a commanding optical signal is generated from a luminescent element 4 through a signal generating circuit 3. This commanding optical signal is received by a receiver 6 of a fan body 5 and when the reception signal command is decoded by a signal processing and controlling circuit 12, an oscillating motor 14 is driven through an oscillating motor driving circuit 13 to rotate an oscillating block 17. Also, when a blowing direction searching receiver 9 searches the commanding optical signal sending direction, following said movement and the commanding optical signal enters the directional angle extent of said receiver 9 so that the luminescent element 10 receives the optical signal, a direction determination informing block 18 will inform an operator of that optical signal.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electric fan, and more particularly to an electric fan having a function of determining the direction of air flow using an optical wireless remote control device.

[Conventional technology]

Conventionally, optical wireless remote controls have been limited to wall-mounted fans, and their functions have been to turn the power on and off, adjust the air volume, set timers, and start and stop the oscillating motion. Also, tabletop and floor-standing fans do not have remote control functions.

[Problem that the invention seeks to solve]

The above-mentioned conventional electric fans have many disadvantages in that, because they do not have a function to determine the air blowing direction by remote control, if a person wants to change the air blowing direction, the person must move close to the fan and change the direction. [Means for Solving the Problem] The electric fan according to the present invention includes an optical wireless remote control transmitting device that transmits an optical signal as a control signal, a command signal receiving section having a wide directional characteristic, and a blowing section that can rotate in any direction. and a direction search receiving section having a narrow directivity characteristic in the same axial direction as the air blowing direction axis.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram of a fan with a function of determining the direction of air flow using an optical wireless remote control device.

1 is a transmitter body, 2 is an operation command input section, 3 is a signal generation circuit, 4 is a light emitting element, 5 is a fan body, 6 is a command signal receiving section, 7 is a light receiving element, 8 is an amplifier circuit, 9 is a direction search 10 is a light receiving element, 11 is an amplifier circuit, 12 is a signal processing and control circuit, 13 is a swing motor drive circuit, 14 is a swing motor, 15 is a fan rotation drive circuit, 16 is a fan rotation motor, 17 is a ventilation and swing block, 1
8 is a direction decision notification block.

Next, the operation will be explained. However, detailed operations of the electric fan and the remote control device will be omitted.

When a command to change the air blowing direction is input to the command input section 2 of the optical signal transmitter 1, a command optical signal is outputted to the light emitting element 4 via the signal generating circuit 3. At this time, it is assumed that the optical signal from the transmitter 1 continues to be output until the blowing direction is determined. The command signal receiving unit 6 receives the command signal, the signal processing and control circuit 12 decodes the command, and the swing motor drive circuit 13
By driving the oscillating motor 14 via the oscillating motor 14, the oscillating jib block 17 is rotated. By shaking the head, the air blowing direction search receiving section 9 searches for the direction in which the command signal is sent. When the command signal enters the range of the directivity angle of the air blowing direction search receiving section 9, a reception output is obtained at the light receiving element 10. In the light-receiving element, when the original axis of the single-emitting element and the optical axis of the light-receiving element coincide, maximum receiving output is obtained. Check the output from time to time, search for the direction that provides the maximum reception output, and determine the direction as the direction of air blowing. Furthermore, the direction determination notification block 18 notifies the operator.

[Embodiment 2] FIG. 2 is a diagram of Embodiment 2 of the present invention. The configuration is the same as in the first embodiment, but by installing a plurality of command signal receiving sections, there is an advantage that optical signals can be received from all angles.

Furthermore, in the case of FIG. 1, the direction in which the head oscillates in order to search for a direction after receiving a command signal is set in advance by the transmitter operator or by a program in the signal generation circuit engineer 2. % of the command signal receiving section 7.
The signal processing circuit 1 determines which receiving section a, b, or c the signal is from.
There is an advantage in that the direction search receiver 9 can be effectively directed in the direction of the transmitter 1 based on the judgment in step 2.

〔Effect of the invention〕

As described above, since the electric fan has the function of determining the air blowing direction, the present invention has the advantage that the air blowing direction can be changed in the direction of the operator of the remote control device without the person having to move close to the electric fan.

Furthermore, the operator of the remote control device sends a command signal to the fan, and until the direction of the air flow is determined,
This has the advantage that there is no need to monitor the operation of the electric fan.

[Brief explanation of the drawing]

1 and 2 are block diagrams showing embodiments of the present invention. DESCRIPTION OF SYMBOLS 1...Optical wireless remote control signal transmitter body, 2...Operation command input section, 3...Signal generation circuit, 4...Light emitting element, 5...Fan body, 6...
- Command signal receiving section, 7... Light receiving element, 8... Amplifying circuit, 9... Receiving section for direction search, 10... Light receiving element,
DESCRIPTION OF SYMBOLS 11... Amplification circuit, 12... Signal processing and control circuit, 13... Oscillating motor drive circuit, 14... Swinging motor, 15... Fan rotation drive circuit, 16...
7 An rotation motor, 17... Air blowing and swinging block, 18... Direction determination notification block. Susumu Uchihara, Patent Attorney, Susumu Uchihara. Fare■0 sunden, mo / da / 6
B;-. Masanobu 13 08
Li, 5-) Oq// Mouth Dasen Increased ・Ken Misaki

Claims (1)

[Claims] An electric fan with an optical wireless remote control device includes a command signal receiving section with wide directional characteristics that receives optical signals from the transmitting side, an air blowing section that can rotate in any direction, and an axial direction that is the same as the air blowing direction axis. An electric fan characterized by having a direction search receiving section with narrow directivity characteristics and having a function of determining the direction of air blowing.