KR20070010090A - Wireless power supply type electronic apparatus for levitation controlled with a electromagnetism force - Google Patents

Abstract

A wireless power supply type electronic apparatus for a levitation controlled with electromagnetism force is provided to levitate an object according to a weight change of the object by adjusting sensitivity of a hall sensor. A wireless power supply type electronic apparatus for a levitation controlled with electromagnetism force includes a wireless power transmitter, a wireless power receiver, and at least one electronic/electric apparatus. The wireless power transmitter is installed to transmit wireless power on a side of a levitation apparatus. The wireless power receiver to receive the wireless power is installed on a side of an object(30) which is levitated. At least one electronic/electric apparatus operated by the wireless power is installed on a side of the object(30).

Description

Wireless Power Supply Type Electronic Apparatus For Levitation Controlled With A Electromagnetism Force}

1 is a perspective view of a levitation globe manufactured by Stella Nova, Germany,

2 is a perspective view of an analog electronic clock mounted on a target object of a levitation electric device (hereinafter referred to as a levitation device) by introducing a wireless power transmission and reception method according to the present invention.

3 is a perspective view of a digital electronic clock, a hygrometer, and a thermometer mounted on a target object of the levitation device by introducing a wireless power transmission method according to the present invention.

Figure 4 is a perspective view of the digital electronic clock mounted on the object of the levitation device according to the present invention.

Figure 5 is a perspective view of the digital electronic clock and the electronic board mounted on the object of the levitation device according to the present invention.

Figure 6 is an explanatory view of the main part of the levitation device according to the present invention.

7 is a circuit diagram of one embodiment of the levitation installed in the levitation device according to the present invention.

8 is an operation diagram of a notebook computer wirelessly powered.

9 is a use of the splash pad is a mobile phone wireless power transmission and reception charger developed by the UK Splash Power.

10 is a plan view of a printed circuit board (PCB) rectenna of a wireless power receiver used in an embodiment of the present invention.

11 is an explanatory diagram of the principle of the rectenna which is a wireless power antenna.

※ Explanation of code about main part of drawing ※

10: Electromagnet 12a, 12b: Hall sensor

18: handle support 20: stand

22: controller

30: object (also called air flotation device)

32a, 32b: permanent magnet 34: rotation drive means

The present invention relates to a wireless power transmission and reception device for elevating a desired object to a predetermined position in a non-contact manner through a manpower or reaction force generated by an electromagnet, and more particularly, a hall sensor with an electric device. It can sense the object in the same direction and location as the electromagnet, and adjust the sensitivity to control the electromagnetic force that can stably lift the aerial object by structurally eliminating the factors that can cause the object to be suspended by the external environment. The present invention relates to a levitation device having a built-in levitation device and operating with wireless power.

Usually, the magnetic levitation device is composed of a magnetizable object, an electromagnet and a distance monitoring sensor, which are objects to be levitation, and the object is disposed between the electromagnet and the sensing sensor to lift the object by magnetic attraction and reaction force generated by the electromagnet. do.

In particular, the sensor detects the distance from the object to the sensor and generates a distance signal.The generated signal is transmitted to the control unit and the phase and frequency of the alternating current flowing through the electromagnet are controlled in response to the distance signal. It is to be levitation in a predetermined position between the electromagnets.

Referring to the conventional levitation device shown in FIG. 1, the object is sensed by controlling the electromagnet by detecting the position of the object and controlling the electromagnet through the light emitting element and the light receiving element as the sensing sensor, but the light receiving element as the sensing sensor is external. In addition to the malfunction caused by the light of the light, there was a limitation in appearance design depending on the position of the sensor.

That is, in the conventional levitation device, the levitation position of the target object is determined by the positioning of the light receiving element and the light emitting element, which are optical sensors. When the force of the electromagnet and the weight of the object do not match, a problem may occur. In addition, the position of these detection sensors arranged in the vertical direction with respect to the electromagnet and the object is not only limited in terms of appearance but also the light receiving element. There was a problem that a malfunction caused by the external light of the.

The present invention also relates to a levitation device using a wireless high-frequency power as a power source, and more particularly, a high-frequency transmitter for transmitting a high-frequency signal is installed on the pedestal, receiving the high-frequency signal of the high-frequency transmitter to convert into a DC power source A rectenna is installed at one side of the target object 30, so that the direct current power converted by the rectenna is directly used as the power source of the target object 30, so that a very convenient battery is not built in. Air power supply type electronic device adopting wireless power transmission and reception method that can not only efficiently use the electric device of the object but also reduce the weight and make the operation easier. {Wireless Power Supply Type Electronic Apparatus For Levitation Controlled With A Electromagnetism Force}.

Therefore, the present invention was devised to solve various problems that are easy to malfunction due to the influence of the surrounding environment as well as the product appearance limitations of the conventional levitation device described above, and using the Hall element in the same direction and position as the electromagnet The purpose of the present invention is to provide a levitation device by controlling the electromagnetic force, which can freely condition the product appearance according to the position of the detection sensor and structurally prevent malfunctions caused by the external environment, thereby enabling stable levitation. have.

In addition, the levitation device according to the present invention allows to adjust the distance between the electromagnet and the permanent magnet embedded in the object by adjusting the sensitivity of the sensor so that the object is attached to the electromagnet even if the object is cut off while the object is suspended. Its purpose is to prevent the risk of damage to the product due to free fall of the levitation object, which can occur in the event of a power outage or similar accident.

In addition to the above, a technical problem has been put into implementing a wireless power transmission and reception method for embedding an electronic clock, an electronic sign, a lamp, etc. in a general levitation device, which can be called an advanced method.

Referring to the accompanying drawings, a configuration of a levitation type electric device adopting a wireless power transmission and reception method according to the present invention for achieving the above object will be described in detail as follows.

1 is a perspective view of a rotating globe capable of levitation as a product developed and marketed by Stella Nova, Germany, characterized in that the present invention is constructed based on this principle.

2 is a perspective view of an analog electronic clock embedded in a target object 30 of a levitation electric device (hereinafter, referred to as a levitation device) by introducing a wireless power transmission and reception method according to the present invention, and FIG. 4 is a perspective view of a digital electronic clock, a hygrometer and a thermometer mounted on a target object of the levitation device by introducing a wireless power transmission and reception method, and FIG. 4 is a perspective view of a digital electronic clock mounted on a target object of the levitation device according to the present invention. 5 is a perspective view showing a digital electronic clock and an electronic board mounted on the object of the levitation device according to the present invention.

In other words, if a device capable of wireless power transmission and reception is embedded in the levitation device, the analog or digital clock, thermometer, hygrometer, and at least one of a light or an electronic board may be selected and embedded in the object.

Figure 6 is an explanatory view of the main part of the levitation device according to the present invention, which will be described in more detail, so that a non-magnetic object is embedded in a permanent magnet can be maintained in a stopped state without physical contact at a predetermined position against gravity Hall sensors (12a, 12b) for generating a reference signal while detecting the position of the electromagnet positioned above the target object 30 and the target object to be suspended by the electromagnet via the handle support (18) And a controller 22 configured to control the force of the electromagnet through feedback control by receiving a change position with respect to the object to be levied by being embedded in a pedestal positioned below the object through the handle support 18. Characterized in that made.

In particular, the hall sensors 12a and 12b detect a position of a target object in levitation control and generate a comparison signal through a comparison signal of the controller with respect to a position sensor and a set reference signal transmitted to the position signal of the controller 22. Characterized in that it is divided into a comparison sensor.

In addition, the hall sensors 12a and 12b may be connected to a signal with the controller 22 so as to control the intensity of attraction by adjusting the distance between the object 30 and the electromagnet in response to the change in weight even if the weight of the object is changed. It is characterized in that the configuration.

In addition, the pedestal 20 is preferably characterized in that the rotary drive means is installed on the upper side to be rotated and stopped at an arbitrary speed in the state in which the object is embedded in the permanent magnet is suspended in the air.

Figure 7 is an exemplary circuit diagram for a temporary levitation to be installed on the pedestal of the levitation device according to the present invention.

8 shows an operation diagram of a wirelessly powered notebook computer, in which the operation sequence of FIG. 8 includes: ① current is transferred to the copper antenna of the charging system; (2) the copper antenna emits electromagnetic waves while resonating at a frequency of 6.4 megahertz (MHz); ③ the tail of electrical energy is generated up to 5 meters; ④ The built-in battery is charged while the antenna of the laptop resonates at the same frequency; ⑤ If there is no electronic device around, the basic principle is that electric energy is absorbed back into the charging system.

On the principle of operation, the team at the University of Massachusetts Institute of Technology Marine Solyasik presented a system that wirelessly delivers electricity even a few meters away from the charger at the American Physics Forum in San Francisco. The systems they announced are still being tested in computer simulations, but the concept is so simple that experts will come to practical use soon.

To explain the wireless power transmission and reception method again, the wireless charging system developed by the MIT team uses the concept of physics of resonance. Resonance, also found in elementary school textbooks, refers to a phenomenon in which the next wine glass rings at the same frequency when the tuning fork sounds. If two strings are side-by-side and the string of one instrument is bounced, it is the same reason that the instrument next to it sounds the same.

Instead of resonating the sound, the team resonated electromagnetic waves containing electrical energy. Electromagnetic waves are the wavelengths that transmit energy to surroundings, such as radio waves, infrared rays, and X-rays. In other words, when electromagnetic waves containing electric energy are generated, electromagnetic waves of the same energy are generated in surrounding electronic devices. The charger connected to the electrical outlet contains a coil of copper wire wound around it. Electric energy is automatically transferred when a cell phone or laptop is equipped with a coil of copper wire that causes resonance and electromagnetic waves of the same frequency.

The device can be charged wirelessly from 5 meters away. The problem is that the antenna used to send out electromagnetic waves is not suitable for transmitting energy. Antennas radiate electromagnetic waves in all directions, so they do not deliver enough electrical energy to the surrounding electronics. To solve this problem, the team developed a so-called non-radiative antenna. When electrical energy is applied to the antenna, it does not diverge into the surrounding space like a normal antenna, but survives to several meters as if it has a long tail. If your phone or laptop approaches, it will automatically charge.

The team found in computer simulations that the system can charge electronic devices three to five meters away and have no effect on other electronic devices or the human body that are not equipped with copper coils to receive electrical energy. The energy generated by the electromagnetic wave generator is said to be weaker than the electromagnetic waves produced by the Earth's magnetic field. Therefore, it is preferable that the wireless power transmitter used in the present invention uses the same principle as described above.

In addition, Figure 9 is a use of the splash pad (splash pad), a mobile phone wireless power transmitter and receiver developed by Splash Power Co., Ltd., which utilizes the electromagnetic induction phenomenon discovered by Faraday, a 19th century British physicist. . The principle is that a magnetic field is generated when current flows, and this magnetic field generates new current again. When the pad is powered on, a magnetic field is generated in the primary coil inside the pad. This magnetic field generates an induced current in the secondary coil in the power receiver of an electronic device such as a mobile phone, the current wirelessly charges the battery in the electronic device, and this type of wireless power transmitter can also be adopted in the present invention. It is done.

For example, the wireless charging system of the electric toothbrush can be described. Looking closely at the electric toothbrush, the toothbrush part has a hole, and the toothbrush part has a pillar. You can see it wrapped. Each of these forms a primary coil and a secondary coil, causing electromagnetic induction, thereby charging the electric toothbrush by induction electricity without direct contact. Since the electric toothbrush is easy to get wet with water, it is preferable to use the inductive charging method which can be charged without exposing the terminal.

FIG. 10 is a plan view of a printed circuit board (PCB) rectenna of a wireless power receiver used in an embodiment of the present invention, and FIG. 11 is an explanatory diagram illustrating a principle of a rectenna that is a wireless power antenna.

Rectenna is a word synthesizing a rectifier and an antenna. As shown in FIG. 11, the antenna and the rectifier are combined to directly convert microwaves into direct current power. Rectenna is basically a structure in which a rectifier diode is connected to the center of a half-wave dipole antenna. When microwave is irradiated to the dipole antenna, it is electrically resonated and the center portion is doubled of the current. Here, by slightly adjusting the position of the diode to match the impedance of the antenna and the diode, the power is used externally through a low pass filter.

As shown in FIG. 10, the number of rectennas is enumerated as necessary to draw out the desired power. For this purpose, the Rectenna array is generally manufactured with a microstrip structure (printed substrate structure: PCB as shown in FIG. 10).

Following the description of the configuration as described above in more detail with reference to the principle of the levitation of the present invention with reference to Figure 6, the levitation device by the control of the electromotive force of the present invention is a change position with respect to the object object 30 levitation Is sensed by the hall sensors 12a and 12b and feedback is controlled by the controller 22, thereby being connected to the permanent magnets 32a and 32b embedded in the object 30 and the hall sensors 12a and 12b. Through the attraction or reaction force generated between the electromagnet 10 is configured so that the desired object 30 is suspended in a predetermined position between the electromagnet 10 and the pedestal 20 in a non-contact manner. That is, the object object 30, the permanent magnet (32a, 32b) is a non-magnetic material is stopped without physical contact at a predetermined position between the upper electromagnet 10 and the lower pedestal 20 against gravity These electromagnets 10 and pedestals 20 are integrally structured through curved bent handle supports 18 so that they can be maintained at the lower side of the electromagnet 10. Hall sensors 12a and 12b are installed to detect and generate a set reference signal, and are connected to the controller 22 configured of the pedestal 20.

In particular, the hall sensors 12a and 12b detect the position of the object 30 in the levitation control and compare the position sensor and the reference signal of the controller 22 with respect to the set reference signal. The Hall sensor 12a is configured to be divided into a comparison sensor for generating a comparison signal through the position sensor and the comparison sensor on the lower side of the electromagnet 10 on the same vertical line as the object to be levitation (30) ( 12b) can be installed to improve the appearance of the product relative to existing products using a horizontal optical sensor.

In addition, the hall sensors 12a and 12b may control the strength of the attraction force by adjusting the distance between the object 30 and the electromagnet 10 in response to the change in weight even if the weight of the object 30 is changed. It is configured to be connected to the signal 22, and the object object 30 that is levitation is a permanent magnet (32a) (32a) 32b is formed in the upper side and the lower side in which the attraction and reaction force to the electromagnet 10 do.

And by adjusting the distance between the electromagnet 10 and the object to be levitation, that is, the levitation distance, the attraction force between the iron core of the electromagnet 10 and the two ball magnet 32a embedded in the object 30 is airborne The weight of the object 30 is preferably adjusted to be greater than the weight of the object 30, which is unexpectedly cut off, or similarly, even if the attraction of the electromagnet 10 is lost, the object 30 is not freely dropped and the electromagnet above. By being attached to (10) by the attraction force, it is possible to prevent the levitation object 30 from being broken at a predetermined position.

Meanwhile, the electromagnet 10 in which the hall sensors 12a and 12b are installed is installed inside the electromagnet housing 14 fixedly coupled to the top of the handle support 18, and the electromagnet housing bottom is assembled and sealed with the electromagnet cover 16. The pedestal 20 is fixedly coupled to the lower end of the handle support 18, the controller 22 is installed therein and the bottom of the pedestal cover is assembled and sealed.

In addition, a decorative lamp, which is a light emitting device (LED), is installed on the upper side of the pedestal 20 so that an operation state for supporting the object 30 is suspended, and a permanent magnet 32b is built in the center thereof. It is preferable that the rotation driving means 34 is installed so that the 30 can be rotated and stopped at an arbitrary speed in the levitation state, and in addition to the decorative concept, anion generating means can be attached to provide external values and indoor air. Of course, it can also give fresh and cleansing.

The controller 22 which controls the attraction and reaction force of the electromagnet 10 provided with the permanent magnets 32a and 32b and the hall sensors 12a and 12b embedded in the object 30 which is a nonmagnetic material is a target position. In response to the displacement of the object 30 from the non-contact method to detect the position of the object 30 is levitation to levitation object 30 from the electromagnet 10 to a predetermined target position against gravity, Hall circuits 12a and 12b composed of a DC power supply circuit, a position sensor 12a and a comparison sensor 12b, and a circuit including a position signal, a comparison signal, a comparator q3 and an integrator q4.

First, the position sensor 12a grabs the position of the object 30 in the levitation control and sends it to the position signal q1 to generate a control signal. The comparison sensor generates a comparison signal through the comparison signal, and the comparator The position signal and the comparison signal are calculated to feedback-control the current flowing through the electromagnet 10 so that the displacement of the object 30 from the target position becomes zero, and the integrator integrates this signal to stably reach the target position. In response to the external environment, the object 30 is stably levitateed.

As described in the detailed description of the configuration of the present invention as described above, in a levitation device having a target object to levitation in general, a wireless power transmitter capable of transmitting wireless power to one side of the levitation device is built-in ; A wireless power receiver capable of receiving wireless power on one side of the object suspended in air in the air; At least one electrical or electronic device operated by the wireless power is embedded in one side of the object; The core of the present invention is that the object is a levitation type electric device adopting a wireless power transmission and reception method, characterized in that it has various functions such as a digital clock, a thermometer or a hygrometer, a light floating in the air, an electric sign floating in the air. It is the point. That is, it is the core of the present invention to introduce a wireless power transmitter into the levitation device, and to include at least one electric or electronic device that operates by receiving power wirelessly from the inside of the object.

In addition, the non-magnetic material is embedded on the object 30 through the handle support 18 so that the object 30 is embedded in the permanent magnet can be maintained in a stationary state without physical contact at a predetermined position against gravity Hall sensors 12a and 12b installed at the lower side of the electromagnet 10 and the electromagnet 10 to detect the position of the object 30 to be levitation and generate a set reference signal, and the handle support ( 18 is a controller 22 for controlling the force of the electromagnet 10 through feedback control by receiving a change position for the object 30 to be levitation is built in the pedestal 20 located below the object object via a medium In the levitation device comprising a), a high-frequency transmitter for wirelessly transmitting a directional high-frequency signal using the power supplied to the pedestal is built in one side of the pedestal; A high frequency receiver configured to receive the high frequency signal and convert the signal into a DC power source on one side of the object; A constant voltage stabilization circuit for stabilizing the DC power supply to a constant voltage of an appropriate magnitude; The high frequency receiver and the constant voltage stabilization circuit is installed on one side, and connected to the output terminal of the constant voltage stabilization circuit, an electronic device using a stabilized DC power source as a power source is characterized in that the wireless power transmission method It is also preferred that it is a levitation-type electrical device incorporating.

And the levitation device, the electromagnetic wave resonance transmitter for resonating the electromagnetic wave composed of a non-radiative antenna having a strong straightness by using the power supplied to the pedestal is built in the pedestal; An electromagnetic resonance receiver composed of a non-radiative antenna having a strong straightness is embedded in the object; According to another embodiment of the present invention, the levitation type electric device adopting the wireless power transmission and reception method is characterized by operating at least one electric or electronic device inside the object with the power produced by the electromagnetic wave resonance receiver. It can be said.

As will be seen in the above detailed configuration, those skilled in the art will be able to practice various modifications within the principles of the present invention, and therefore, it should be obvious that various implementation methods possible within the scope of the present invention should also belong to the present invention. .

As described above, the levitation electric apparatus adopting the wireless power transmission and reception method according to the present invention can detect the object in the same direction and position as the electromagnet by applying the sensing means for the object to be levitation as a hall sensor. In addition, by adjusting the sensitivity of the Hall sensor, it is possible to easily lift the levitation device corresponding to the weight change of the object, and unlike the conventional device structure that had to be perpendicular to the electromagnet, in particular, the sensing means in the same direction as the electromagnet In addition, the appearance design can be more freely, as well as structurally eliminate the factors that can cause the malfunction by the external environment can be a stable levitation.

In addition, the present invention relates to an object that uses the power to be transmitted wirelessly as a power source, and more particularly, a high frequency transmitter for transmitting a high frequency signal is installed in the pedestal, receiving the high frequency signal of the high frequency transmitter to a direct current power source A converting rectenna is installed at one side of the target object 30 and directly uses the DC power converted by the rectenna as the power of the target object, so that a convenient battery is not built in. The present invention relates to a levitation type electric device incorporating a wireless power transmission / reception method using wireless high frequency power as a power source capable of wirelessly driving the electronic device of the object.

Also, by controlling the distance between the electromagnet and the levitation object so that the strength of the attraction force between the iron core of the electromagnet and the permanent magnet embedded in the object becomes larger than the weight of the target object, the sensitivity of the Hall sensor is applied. In addition, even if the power is cut off while the object is under levitation, the object will be automatically attached to the electromagnet to prevent the free fall of the levitation object, which may occur in the event of a power failure or similar, and may cause damage. Even if the object can be lifted with confidence and not damaged, it is possible to overcome the limitation of having to narrow the space between the object and the pedestal in consideration of the impact of free fall.

In addition, the levitation device according to the present invention is structurally stable, safe and beautiful design can be configured to enable the product is possible to levitation of a variety of decorations, which is a display stand for promotion by grafting a variety of products as a levitation object It can be used for light, which can induce scientific curiosity as a decoration, and since there is no physical contact, the display effect of the product can be made three-dimensionally when displaying the general product. It can be expected and has the advantage of more advanced efficacy by various electronic or electrical devices installed inside the object that operates with wireless power.

Claims (3)

In general, a levitation device with a levitation object, A wireless power transmitter capable of transmitting wireless power on one side of the levitation device; A wireless power receiver capable of receiving wireless power on one side of the object suspended in the air and suspended; At least one electric or electronic device operated by the wireless power is a levitation-type electric device, which incorporates a wireless power transmission and reception method, characterized in that built in one side of the object. The method of claim 1, It is located above the object 30 through the handle support 18 so that the object object 30 is a non-magnetic material is embedded in the permanent magnet can be maintained in a stationary state without physical contact at a predetermined position against gravity Hall sensors 12a and 12b installed at the lower side of the electromagnet 10 and the electromagnet 10 and generating a reference signal while sensing the position of the object 30 to be levitation, and the handle support 18. The controller 22 for controlling the force of the electromagnet 10 through the feedback control by receiving a change position for the target object 30 that is embedded in the pedestal 20 located below the target object via a medium through In the levitation device comprising, A high frequency transmitter configured to wirelessly transmit the directional high frequency signal by using the power supplied to the controller, on one side of the pedestal; A high frequency receiver configured to receive the high frequency signal and convert the signal into a DC power source on one side of the object; A constant voltage stabilization circuit for stabilizing the DC power supply to a constant voltage of an appropriate magnitude; The high frequency receiver and the constant voltage stabilization circuit is installed on one side, and connected to the output terminal of the constant voltage stabilization circuit, at least one electrical or electronic device using a stabilized DC power source as a power source is embedded on one side of the object Aerial levitation type electric device adopting a wireless power transmission method characterized in that. The levitation device according to any one of claims 1 and 2, An electromagnetic resonance transmitter for resonating electromagnetic waves composed of non-radiative antennas having strong straightness using power supplied to the controller is built in the pedestal; An electromagnetic resonance receiver for resonating electromagnetic waves composed of a non-radiative antenna having a strong straightness is built in the object; At least one electric or electronic device is a power generated by the electromagnetic wave resonance receiver is a levitation-type electric device introducing a wireless power transmission and reception method, characterized in that embedded in one side of the object.

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