KR100649471B1 - An electric fan to make the natural wind - Google Patents

Abstract

The present invention relates to a natural wind generating device of a fan, and to provide a technical means for generating a natural wind by vibrating the wind direction angle of the fan by a program and further varying the rotational speed, the cost of doing so mainly in one microcomputer and electromagnet It relates to a fan that improves savings and productivity.

DESCRIPTION OF REFERENCE NUMERALS 1: fan body, 2: fan blade, 3: handle for right and left rotation, 4: fan body fixing stand, 5: stand, 6: pedestal, 100: wind direction angle switching device, 200: fixing mechanism part for generating vibration, 7: control Circuit

Description

An electric fan to make the natural wind}

1 is a cross-sectional view showing a conventional electric fan

2 is a cross-sectional view showing the internal structure of FIG.

3 is a cross-sectional view illustrating the principle of an embodiment of the present invention.

FIG. 4 is a cross-sectional view showing enlargement and operation of the embodiment of the present invention of FIG.

5 is a cross-sectional view illustrating the action of the fan vibrating the wind direction angle in accordance with the present invention.

6 is a block diagram showing an electric circuit configuration of the control circuit unit of the present invention.

7 is a block diagram showing another example of the control circuit unit.

The present invention relates to an air volume and / or wind speed control device of the fan, in particular, a technique including a configuration to generate a natural wind by vibrating the wind angle of the fan with the force of the electromagnet.

As is well known, the fan is a wind generator that generates wind by using electric energy, so it does not use manpower, so it is very useful to cool down the heat in the summer. It is widely used because of its ability to be easily moved to a place.

In general, there are two ways to generate wind. There are two methods of generating wind by rotating a blade having a constant angular pitch, such as a fan, and a method of periodically driving the wind using a fan.

Fans and fans generate different winds. In other words, in fan, the winds occur intermittently according to the reciprocating motion of the blades. However, the fans push the winds to the pitch according to the (high speed) rotation of the blades. The difference is that the wind of the fan has a constant air volume without change, so if you shoot the fan with the same rotational power for a long time, unlike wind of the fan, it will cause people's bodily immunity, and the feeling of coolness for a long time will gradually decrease. In addition to the action of evaporating moisture in the human body, severe discomfort can occur.

Nevertheless, it is needless to explain that fans are used more widely than fans because they do not require manpower by using electrical energy.

In the conventional fan, there are 90 ° (or 120 °) rotation function and speed conversion function to change the wind, but the 90 ° rotation function changes the direction with one fan so that the wind is transmitted to several people. Because it is configured for the purpose, the period of transmission is very long, for example, 10 seconds, so that it cannot be compared with the natural wind where the instantaneous wind changes to strong and weak. As it is, it was completely different from the natural wind.

Recently, there have been many attempts to improve the direction of rotation of the fan by 360 ° or by adding up and down movements to the left and right rotations, but it is far from generating the natural wind, but it is only a change to the left and right rotation movements. It is true.

If you change the pitch or rotational speed of the fan blades at high speeds, or if you have a plurality of vortex generating rotors (motors) at different speeds, you can get natural wind, but in this way change the wind speeds at high speeds or generate vortices. For this purpose, there is a drawback that the mechanical cost is greatly increased, which is not practical.

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The first object of the present invention is to provide a fan configuration means for generating an extremely close to the natural wind by combining the advantages of the fan and the advantages of the fan,

The second object of the present invention is to provide a comfortable life to the general by configuring a structure that can achieve a low cost and multi-purpose effect.

The present invention for this purpose provides a first control means for causing the wind to blow from the fan by vibrating the direction of the wind calmly with the force of the magnet despite the rotational speed of the fan.

In addition, the present invention by using a microcomputer program control the cycle of the current supplied to the electromagnet and the rotational speed of the motor to generate a wind that is extremely close to the nature of the random (Random) natural wind, the program given conditions or users It provides a second control means for changing the wind in a dynamic (dynamic) and rhythmical (linked to a program input to fit the preference).

FIG. 1 is a cross-sectional view showing an outline structure of a conventional electric fan, and FIG. 2 is a cross-sectional view showing an internal structure. First, the outline structure shown in FIG.

Fan body (1) is composed of a motor and a gear to rotate the blade for generating wind power by using the rotational force of the rotor and to adjust the wind direction angle from side to side;

A blade 2 connected to the rotor of the fan body and configured to generate wind power according to the rotational force of the rotor by forming a pitch of a predetermined angle;

A gear to rotate the wind direction of the fan by a predetermined angle to the left and right by connecting and controlling the teeth extending from the fan rotor and a knob to control the driving thereof;

A fixed plate 4 supporting the fan body 1;

A stand 5 for holding the fan body 1 as high as a predetermined position;

A pedestal 6 for fixing the stand 4 to the floor;

The internal structure of the main body is as follows.

A motor 1-1 rotating in a constant direction according to a power supply;

The first gear 1-5 extending from the rotor 1-2 of the motor, and the second gear 1-6 which transfers the rotational force by 90 ° (or 120 °) and transfers it at a predetermined reduction ratio. And a third gear (1-7) and a wind gear angle switching means (100) composed of a fourth gear (1-8) for converting the rotational movement into a left-right direction shifting motion in conjunction with the third gear (1-7).

The clutch 1-4 is provided between the first gear and the second gear, and constitutes a means for transmitting or blocking their power, and a knob 3 for operating the same.

Unexplained reference numeral (1-3) is a first fixing rod for supporting the second gear and the third gear, and (1-10) converts the rotational force into a turning moment when the fourth gear (1-8) is turned. It is the second fixation stand to do it.

In addition, the reference numeral (1-11) is a third fixing bar to support the body (1) or by the rotational force of the fourth gear (1-8) can be moved horizontally so that the direction of the body can be turned left and right. It consists of a structure.

The operation of the fan configured as described above is already known in the art, but in order to specify the scope of the present invention, the principle of right and left angle adjustment of the fan, in particular, is as follows.

When the knob Knob 3 is pulled upward by hand, the clutch 1-4 is connected and the rotational force of the rotor 1-2 is transmitted to the second gear 1-6, which in turn is the third gear ( It is transmitted to the fourth gear 1-8 via 1-7). In this process, each gear switches the rotation moment by 90 ° and simultaneously decreases the rotation speed by a predetermined reduction ratio.

Accordingly, the fourth gear 1-8 rotates at a constant deceleration rate corresponding to the rotational force of the rotor 1-2, but the shaft 1-9 is eccentric to the center of the fourth gear 1-8. Since the fourth gear 1-8 is rotated, the shaft 1-2 of the motor 1-1 is rotated at a constant angle around the second fixing stand 1-10, and then returns to its original position. Will be repeated.

Since this leads to a function of switching the wind angle of the fan, it is configured based on this principle to turn 90 ° (or 120 °) from side to side in a general fan.

This change of direction is one cycle between 10 seconds and 20 seconds, and the interval of one cycle is generally changed in proportion to the rotational movement of the fan blades.

3 is a cross-sectional view showing an embodiment of the present invention that is implemented in addition to the configuration of FIG. 1 and FIG.

A first fixing plate 4-1 of the means for supporting the fan body 1;

A second fixing plate 4-2 of the means configured by fixing the magnetic material 4-3 so that the inclination can be changed with respect to the bottom surface;

A first fixing plate (4-5 and 4-7) for fixing the first fixing plate and the second fixing plate to be spaced apart by a predetermined interval, and facing the magnetic body of the second fixing plate (4-2); By attaching the electromagnet 4-4 at the position of 4-1) and changing the magnetic force supplied to the electromagnet, the attraction force or repulsive force acts between the magnetic body 4-3 and the electromagnet 4-4 so that the first fixed plate 4 Wind direction vibration means (200) configured to change the wind from the rotor installed at -1);

The output terminal is connected to the electromagnet 4-4, and a control circuit unit 7 of means for controlling the magnetic force of the electromagnet by supplying and blocking the current to the electromagnet according to the user's selection.
Here, the means configured to vibrate the fan rotor by combining the first fixing plate and the second fixing plate through the fixing mechanism having flexibility will be referred to as "first and second fixing plate coupling means."

The operation of the present invention configured as described above will be described with reference to FIG.

Normally, the first fixing plate 4-1 balances with the elasticity of the spring 4-7 to perform a horizontal state with the second fixing plate 4-2.

When the user selects the natural wind, the control circuit unit 7 generates an electric current to control the magnetic force of the electromagnet. When a magnetic force is generated in the electromagnet (which refers to the case in which the electric current is supplied to the electromagnet from the control circuit unit), the electromagnet is the first. Due to the positional characteristics eccentrically installed at the center, not at the center of the fixed plate, the first fixed plate moves at a different angle to (4-1-1) at the lower dotted line, and the spring mechanism (4-7) when no magnetic force is generated in the electromagnet. With the force of, the first fixing plate returns to the solid line position 4-1, which is the original horizontal position. The vibration occurs due to the mixed action of the electromagnet and the fixing mechanism part because the electromagnet is fixed in this manner.

Therefore, if a cycle is formed by repeatedly interrupting the current applied to the electromagnet, the wind of the fan delivered to the user may be vibrated. If the cycle is set to 1 second, the wind will vibrate every second. The wind of the fan felt by the user forms a wave effect of the wave, and as a result, an effect close to the natural wind is obtained.

As a means to enhance the effect of the natural wind, if the output current of the control circuit part is strongly controlled or if the vibration period is randomly changed to about 0.5 to 3 seconds, the natural wind effect is obtained as a further improved function.

The most preferable means is to control the output current of the control circuit part up to the rotational speed of the motor (for example, to change the rotational speed in multiple stages at intervals of 5 ^to 10 seconds). The physical structure that can create is completed.

This rotation speed can be controlled by controlling the excitation coil current of the motor. Specific circuits include digital control using a relay or digital or analog control circuit using a thyristor (TRIAC, SCR) or transistor. It is used, but since it is a technique widely used in the art from the prior art, the detailed description is omitted in the present invention.

As described above, a description of the fan action in which the natural wind is generated is shown in cross-sectional view in FIG. 5, and it will be easy to understand the principle of generating the natural wind by vibrating the wind direction of the fan up and down.

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In FIG. 4, reference numeral 4-6 exemplifies a fastener of the fastening mechanism part for fastening the first fixing plate 4-1, and this fastener is used to smoothly move the first fixing plate up and down. It is effective to insert the bearing mechanism inside.

6 is a block diagram of an electric circuit configuration of the control circuit unit 7 of the present invention.

A microcomputer 7-1 generating an electrical output by performing a vibration program in accordance with a previously input vibration program or a signal input from the outside;

An amplifier 7-2 connected to an output terminal of the microcomputer 7-1, and configured to drive an electromagnet 4-4 by amplifying the microcomputer output current;

A power supply unit 7-3 for supplying power to the microcomputer and amplification unit;

Control signal input means (7-4) connected to the input terminal of the microcomputer (7-1) to receive an external sound signal or a program, if necessary, during production;

A display mechanism 7-5 additionally connected to the microcomputer 7-1 as necessary to produce the program driving status or user operation information;

A conversion unit 7-6, which is connected to an output terminal of the microcomputer 7-1 and configured as a means for changing the speed of the motor 1-1 as necessary during manufacture.

The operation of FIG. 6 configured as described above is explained as follows.

The microcomputer 7-1 is configured by inputting a preset vibration program. For example, when a music program is embedded, the microcomputer 7-1 detects a change in the height of the sound to create a vibration period, and detects a change in sound intensity. Creating a wind creates a natural wind that changes the wind randomly. The frequency divider circuit adds a delay circuit function that makes the change rate of a limited range (for example, within 1 second) to be ignored when the change period caused by this music is too fast or slows down the change rate uniformly. Of course, the function can be additionally applied to the program.

When implementing the microcomputer's vibration program, if the period to control the wind speed is slower than the period to vibrate the wind, it can perform a smooth motion mechanically. The cycle can be divided in detail into the second vibration cycle, and the vibration cycle of the microcomputer includes all means for applying only one of the first vibration cycles (when the speed of the motor is not variable) or all of them together. It refers to a comprehensive concept, which will be easy to understand by referring to the hardware structure of FIG.

If the vibration cycle does not match the user's preference by using a simple program for a long time, connect the microphone or digital signal that detects an external sound signal or the keyboard or keypad to the input unit (7-4) to the user's favorite signal from the outside. In this case, the microcomputer rewrites the vibration program using this signal in the same principle.

The microcomputer may also constitute a vibration program by limiting only the characteristics of sound intensity or high and low, and of course, it is possible to implement a fixed vibration period as shown in FIG.

In addition, the microcomputer can be operated in various ways such as a reservation function for the sleep function to generate or block the natural wind at a long time interval.

The electrical output generated from the microcomputer mainly refers to a direct current (DC) output, and includes a means for changing the output current by turning the output on or off or shortening the on period again with the oscillation period. can do.

The power supply unit 7-3 is for supplying an appropriate current necessary for driving the microcomputer, and provides a function for supplying a power (DC) suitable for electromagnet control and a power (AC) suitable for speed adjustment of the motor, respectively. The semiconductor circuit may be supplied after converting a commercial power source into a DC power source and stabilizing the circuit in an automatic voltage regulation circuit.

The display mechanism 7-5 is mainly for displaying the situation that the user selects or operates, and indicates which one of a plurality of vibration programs is designated or whether the vibration program is set or not, or the conversion unit 7-6. And the display mechanism (7-5) is not an essential component that is indispensable in the present invention, it is provided as needed at the time of manufacture to maximize the effect of the natural wind or to facilitate the operation.

7 is a block diagram showing another example of the control circuit section, which is the simplest implementation only with the oscillation sections 7-7 and 7-8.

The oscillator 7-7 is a circuit configured to have a fixed oscillation period. In general, since the oscillation part 7-7 can be simply configured as a high power device, the output of the oscillator 7-7 is directly supplied to the electromagnet 4-4, thereby amplifying the circuit of FIG. Part 7-2 is omitted.

The control circuit part 7 of FIG. 7 has a long period for adjusting the rotational speed of the short period oscillator 7-7 and the driving motor 1-1 for driving the electromagnet 4-4. ) Of the long period oscillator 7-8, which is configured as the oscillator 7-8 and is mainly composed of a divider (Divider or Counter), unlike the short period oscillator output generated by a simple on-off output. The output is configured to adjust the rotational speed step of the motor by cycles in the conversion unit 7-6.

In comparison with the micom program of FIG. 6, the output of the short period oscillator corresponds to the first vibration period of the microcomputer program, and the output of the long period oscillator corresponds to the second vibration cycle of the microcomputer program.

7 is a control circuit part that can be easily implemented at the lowest cost since it does not require a complicated program, and the long period oscillation part 7-8 is excluded when it is not necessary to change the rotational speed of the motor. It can be applied with or without addition.

The present invention is not limited to the above embodiment, and if the second fixing plate 4-2 is configured as shown in FIG. 4, the present invention is located at a position opposite to the electromagnet 4-4 of the first fixing plate 4-1. When the installed magnetic material 4-3 is replaced with a permanent magnet, when the polarity of the current output from the control circuit unit 7 is changed, the first and second poles of the N and S poles of the magnet are pushed and pulled. As the fixing plate 4-1 is reciprocated from the lower dotted line position 4-1-1 to the upper dotted line position 4-1-2, it can be seen that various implementations are possible.

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Although somewhat primitive, the present invention may be implemented as follows, for example, by combining a separate gear to move the rotational force of the rotor 1-2 in parallel or with a separate low-speed rotary motor, Permanent magnets are installed on the first fixing plate at the same period as the rotation when the permanent magnet is installed eccentrically so that the magnet moves away from the second fixing plate 4-2 every time the motor 1-1 rotates. 1) is configured to be movable.

Therefore, in the present invention, the electromagnet and magnetic material (or permanent magnet) attached to the first fixing plate and the second fixing plate and attached to each of the first and second fixing plates as the fixing mechanism part having the flexibility generate attraction or repulsive force. The means in which the 'rotor of the fan bound to the first fixing plate' is vibrated from the 'second fixing plate which is bound to the fixing station fixed to the user installation place' is referred to as the wind direction vibration means 200.

In addition, the control signal input unit 7-4 analyzes an analog signal by a Fourier Transform (FFT) algorithm using a digital signal processor (DSP) and as a result, the microcomputer program. It can be used to control the music input from outside, or to switch the operation to voice recognition.

In addition, the input unit 7-4 of the microcomputer may additionally implement a function of automatically blocking the operation of the fan when the indoor temperature drops below a certain level by adding a temperature detection circuit unit at night.

As described above, according to the present invention, since the electric fan using the conventional electric energy is rotated at a fixed wind speed, the bodily sensation does not become cool when used for a long time, and furthermore, the shortcoming of the shortcoming of the unpleasant feeling is obtained by the short vibration period. In addition, the sensory effect can be greatly increased.

As a means of further improvement, when the wind direction of the fan is vibrated or changed to a speed by a random vibration cycle, the wind is very close to the natural wind, so that a comfortable indoor environment can be realized. .

In addition, according to the present invention, it is possible to adopt a very simple structure and to adapt variously to the change of user's demand by software program, so that it is easy to mass-produce with the same hardware as the compact configuration. .

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Claims (5)

In a typical fan composed of a main body for coupling the fan motor to the fixed plate, a wing coupled to the motor, a fixed support for supporting the main body, The stationary plate coupled to the fan motor is composed of a first stationary plate bound to the fan motor and a second stationary plate bound to the stator, wherein the first stationary plate and the second stationary plate are flexible fixing parts and the first stationary plate and the second stationary plate. First and second fixing plate coupling means of means configured to be opposed to each other so as to have a predetermined interval so that the first and second fixing plates are mechanically vibrated; The magnetic body 4-3 and the electromagnet (4-) are attached to the first fixing plate and the second fixing plate by attaching the magnetic body 4-3 and the electromagnet 4-4 to each other and changing the magnetic force supplied to the electromagnet. 4) wind direction vibrating means configured to vibrate in a vertical direction a motor bound to the first fixing plate 4-1 by changing an interval between the first and second fixing plates by the attraction or repulsive force acting therebetween; An output terminal connected to the electromagnet 4-4, and a control circuit unit 7 of means for controlling wind direction vibration means by supplying current to the electromagnet 4-4 according to a set condition; And a fan configured to vibrate the wind. The method of claim 1, The control circuit unit 7 further includes a 'rotation speed control means for supplying a current to the excitation coil of the drive motor as a control signal output to control the rotation speed of the drive motor', and drives the output of the rotation speed control means. And a means configured to be connected to the motor (1-1) to change the rotational speed of the driving motor as well, so that the effect of the natural wind is improved. The method of claim 1, wherein the control circuit unit A microcomputer 7-1 for generating a corresponding electrical output by vibrating a preset vibration program or a signal input from the outside; An amplifier 7-2 connected to an output terminal of the microcomputer 7-1, and configured to drive an electromagnet by amplifying an output current of the microcomputer; A power supply unit 7-3 connected to the microcomputer and amplification unit to supply operating power; And a means configured to connect the microcomputer to supply an electric current to the electromagnet via the amplifying unit. 3. The control circuit according to claim 1 or 2, An oscillation unit 7-7 for generating a short period signal of a fixed simple on-off period, and connecting the output of the oscillation unit 7-7 to 'means for supplying current to the electromagnet' And a fan configured to comprise a natural wind. 2. The control circuit according to claim 1, wherein First vibration period oscillator 7-7 for generating a short period signal of a fixed simple on-off period and a second vibration period for generating a long period signal of a fixed simple on-off period Including the oscillation part 7-8, The output of the first oscillation cycle oscillator 7-7 is connected to the means for supplying current to the electromagnet 4-4, and the output of the second oscillation cycle oscillator 7-8 is driven. By supplying a current to the exciting coil of the motor (1-1) to control the rotational speed ' And a means configured to control the vibration of the fan and the rotational speed of the drive motor by controlling the electric current of the electromagnet and the excitation current of the drive motor.

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