KR20060063100A - Non-contact high power supply and position information transceiver - Google Patents

Abstract

The present invention relates to a non-contact large power supply and position information transmission device, and transmits power and position information to the load by sending a current to the feeder line in the high frequency power converter and using a pick-up coil movable by contactless magnetic coupling It is to.

To this end, the present invention is a feeder for supplying a high-frequency power feed line installed over the moving section of the mobile truck by converting the high-frequency power received from the external commercial AC power; The non-contact large power supply and position information transmission device is installed in the moving trolley while maintaining a constant gap with the high-frequency feed line of the feed portion, consisting of a power receiving portion receiving power from the high-frequency feed line of the feed portion in a magnetic induction manner. It provides stable power supply and location information by using low conductivity magnetic induction phenomenon without direct electrical connection or physical contact without any electric shock and short circuit risk even in extreme environments with high humidity. .

Contactless, mutual induction, magnetic coupling, high frequency feeder, large power, location information, transmission and reception

Description

Non-contact high power supply and position information transmitter {NON-CONTACT HIGH POWER SUPPLY AND POSITION INFORMATION TRANSCEIVER}

1 is an overall system block diagram of a contactless large power supply and position information transmission device according to an embodiment of the present invention

FIG. 2 is a detailed circuit diagram of a power supply unit and a power receiver in the embodiment of FIG. 1.

3 is a perspective view of a feeder cover device used in the present invention;

4 is a cross-sectional view of the feeder laying apparatus used in the present invention

5 is a cross-sectional view of a state where a high frequency feed line and an upper power receiving device according to the present invention are installed;

<Explanation of symbols for the main parts of the drawings>

10: high frequency power inverter 20: high frequency feed line

21: feeder cover device 21a: feeder installation hole

21b: Fixed part 22: Feeder laying device

22a: fixing part insertion hole 22b: laying support

23: impedance compensator 41-43: first communication module

50: power receiver 60: voltage stabilizer

70: second communication module

The present invention relates to a non-contact large power supply and position information transmission device, and more particularly to a high-speed high power and the position information of the mobile trolley in a non-contact manner to a mobile trolley that moves a long distance in the transverse direction along the track. The present invention relates to a high frequency large power transmission device and a location information transmission device of a mobile truck.

Most main-operated equipment used today is designed to be powered using sockets and plugs as a means of power delivery. Mobile devices are powered by slide contacts or batteries. It is configured to be able to supply.

However, in the case of a device that is powered by using a slide contact, contact with the main power supply may cause poor contact, and may include wear caused by friction during slide and iron, lead, and copper components. There is a concern that such dust and bad contact may cause serious problems in a place such as a clean room having a semiconductor process environment.

In order to solve this problem, it is essential to develop a contactless power supply that can supply power without direct electrical connection or physical contact.

 Accordingly, the present invention has been made to meet the above requirements, and the present invention provides power and position information to a load by intermediating a pickup coil that sends current to a feeder line in a high frequency power converter and moves using contactless magnetic coupling. Simultaneous transmission enables stable power supply and location information transfer using low conductivity magnetic induction without direct electrical connection or physical contact without any electrical shock or short circuit, even in extreme environments with high humidity. Its purpose is to provide a contactless large power supply and position information transmission device.

In order to achieve the above object, the present invention is a feeder for supplying a high frequency feed line installed over the moving section of the mobile truck by converting into a high frequency power by receiving an external commercial AC power; The non-contact large power supply and position information transmission device is installed in the moving trolley while maintaining a constant gap with the high-frequency feed line of the feed portion, consisting of a power receiving portion receiving power from the high-frequency feed line of the feed portion in a magnetic induction manner. to provide.

In the large power supply and position information transmission device according to the present invention, a plurality of the high frequency power supply lines are disposed along a moving section of the high frequency power supply line, and are arranged below the high frequency power supply line so that the power receiving unit is close to the power receiving unit. A plurality of first communication modules receiving power using intrinsic magnetic fields around the power receiving portion absorbed from the power transmission unit, and transmitting position information for starting, stopping, decelerating, and controlling product information of the mobile truck; A second communication mounted on the power receiving unit of the mobile truck and receiving current position information of the mobile truck for starting, stopping, decelerating, and controlling the information of the goods by using infrared communication with each of the first communication modules; The module may further include other embodiments.

In each embodiment of the present invention, the power supply unit, a high frequency power converter for converting into a high frequency power by receiving an external commercial three-phase AC power; High frequency power transmission enameled cable composed of more than 0.08mm and 850 strands per strand and installed over the moving section of the mobile truck. and; A feeder line covering device for covering and supporting the high frequency feeder in a surrounding shape; It may be configured to include a feeder line installation device for stably fixing the high-frequency feeder line covered and supported by the feeder line cover device at a designated laying position.

In each of the embodiments of the present invention, in particular, the feeder further includes an impedance compensator for coupling a capacitive element to the high-frequency feedline in parallel to form a resonance circuit by combining with an inductive inductance component of the high-frequency feedline itself. Will be configured.

In each of the embodiments of the present invention, the power receiving unit includes: a power receiving device which absorbs electric power from the high frequency power supply line in a non-contact manner by magnetic induction coupling while maintaining a gap therebetween by the high frequency power supply line; The voltage stabilizer may be configured to adjust the power induced in the power receiving device to deliver a stable voltage and current to the final load, in particular, the power receiving unit, the voltage stabilizer so that the power receiving device can induce maximum power A capacitive element is connected to an input terminal of the power receiver, and two capacitive elements are respectively connected in series to two power lines of the power receiver, and then another capacitive element is connected in parallel to the series inductance and the resonant circuit of the power receiver. It can be configured to form.

The objects, features and advantages of the present invention will be more readily understood by reference to the accompanying drawings and the following detailed description.

Hereinafter, the configuration and operation of the preferred embodiment of the present invention with reference to the accompanying drawings in detail as follows.

1 is an overall system block diagram of a non-contact large power supply and position information transmission device according to an embodiment of the present invention, which comprises a high frequency power converter 10, a high frequency feed line 20, and an impedance compensation device 23. A first communication module (41-43) including a power feeding portion, a power receiving portion including a power receiving device (50) and a voltage stabilization regulator (60), and a plurality of first communication modules disposed on the high frequency power feeding line while maintaining a gap at predetermined intervals; And a non-contact long distance large power and location information transmission device configured to include a second communication module 70 mounted on the power receiver and receiving respective location information from the plurality of first communication modules. Here, the first communication module (41-43) is disposed in a plurality of predetermined intervals of the high-frequency feed line along the moving section of the moving bogie, spaced apart below the high-frequency feed line, is disposed in the high-frequency feed line of the feed section It is possible to install any part of the high frequency power feeder without any position limitation by configuring each of them so as to receive power from the magnetic field and transmit position information for starting, stopping, and deceleration control of the mobile truck.

In addition, the second communication module 70 is mounted on the power receiving unit of the mobile truck and is operated by receiving power from the power receiving device. The start, stop, and deceleration of the mobile truck using infrared communication with each of the first communication modules is performed. Communication means corresponding to the first communication module to receive the current position information of the mobile truck for control is provided. This makes it possible to use the location information for performing commands such as deceleration or stop of the mobile device and the tracked vehicle.

FIG. 2 illustrates a detailed circuit diagram of the power supply unit and the power receiver unit in the embodiment of FIG. 1.

As illustrated in FIG. 2, the high frequency power converter 10 is a device that receives an external commercial three-phase AC power source and converts the high frequency power into a high frequency power supply to a power line, and connects a commercial three phase AC power source to an input terminal. (SW1), a reactor (L1) for noise removal, the rear end of the fuse (F) and rectifier (D1), a capacitive element (C1) for voltage compensation, switching element for switching to a high frequency component TR1 and a transformer T1 having a primary side connected to the final stage in order to stably transfer this high frequency power to a feed line.

A high frequency feed line 20 is connected to a secondary side of the transformer T1, which is an output terminal of the high frequency power converter 10, and inductance of a power line by connecting capacitive elements C2 and C3 to the high frequency feed line 20. Inductance compensation device 23 for compensating for is connected. This inductance compensator decorates the entire resonant circuit with the combination of the inductance component and the capacitance component of the entire high frequency feeder, and the device value of course must be converted according to the power receiver and the whole system.

The power receiving device 50 is composed of a reactor (L2) is installed in the moving trolley while maintaining the air gap between the high frequency feed line 20 and a predetermined distance or more from the high frequency feed line by magnetic induction coupling in a contactless manner. The voltage stabilizer 60 includes a rectifier D2, a reactor L3, a switching element TR2, and a capacitive element C7.

The power receiving device 50 of the present invention is a structure that ensures independent movement of the feeder and the final load by using the principle of the traditional inductive coupling circuit, the shape can be converted into various shapes according to the user's request Therefore, it would be desirable to configure the distance to maintain a distance of 10 [mm] within the high-frequency feed line. This is because the magnetic field induction component of the feeder is transmitted to the power receiving device through the air gap. In the present invention, if the power receiving device can keep the distance from the high frequency power feeder to only about 10 mm, the power receiving device is efficiently powered from the feeder by the magnetic induction coupling. In this state, the power receiving device can be changed in various ways because it can absorb, and preferably means that all shapes such as general E-shaped shape (see FIG. 5) or flat type can be designed. .

In addition, the high-frequency electrical signal transmitted to the feeder line is a perfect sine wave to compensate for the disadvantages affecting other electrical devices, thereby minimizing harmonic and spurious components that may occur. Since the harmonic induction is minimized, it is free from noise problems commonly encountered in high power transmission, and the voltage stabilizer adjusts power induced in the power receiving device to deliver stable voltage and current to the final load.

The voltage stabilizer 60 connects two capacitive elements C4 and C5 in series to its input terminal and adds the capacitive elements C6 in series to the series inductance and resonant circuit of the power receiver. In this case, the resonance current can be lowered in the normal standby state, and the drop in voltage can be reduced by the capacitive components connected in series when the load increases, so that the voltage fluctuation rate of the load can be absolutely reduced. Can be stabilized even more. As a result, the voltage stabilizer used in the present invention can compensate for the disadvantages of conventional capacitive elements connected in parallel, that is, a large amount of resonant current, which generates a lot of heat and increases the voltage variation rate due to the load.

As a result, the power absorbed by the reactor L2 serves to transfer the maximum power to the load by the capacitive elements C4-C6 connected in series / parallel in the next stage, and the rectifier D2 and the voltage in the next stage. The stabilizer adjustment circuit makes it possible to apply the appropriate voltage and current to the load.

On the other hand, the high-frequency feed line 20 used in the present invention is composed of 0.08mm, 850 or more strands per strand is a high-frequency power transmission enamel cable that is laid over the moving section of the mobile truck, the transformer secondary side of the high-frequency power converter It is a power line that is connected to and feeds with high frequency power directly applied thereto.

Figure 3 is a perspective view of a feeder cover device used in the present invention illustrating the auxiliary means required for laying the feeder line, Figure 4 is a cross-sectional view of the feeder line laying device used in the present invention support means for fixing the device of FIG. To illustrate.

The lower end surface of the support means is generally fixed to the lower end of the feeder line laid along the moving path of the bogie, and it is preferable to set the height of the support means to 70 mm in consideration of the power absorption rate and mechanical limitations of the power receiver from the feeder line.

The feeder cover device 21 is formed in a shape that can be fixed to the lower portion with a round hole to put the feeder line in the middle, as shown in Figure 3, covering the high frequency feeder to cover the form The feeder laying hole 21a and the fixing portion 21b for supporting and fixing the lower portion of the feeder laying hole are formed to cover the feeder line when the feeder is laid. As a result, the feeder and the fixing bracket support the structure to minimize the magnetic field absorption of the metal by keeping a certain distance from the metal, and the feeder that transmits the high frequency signal is sensitive to small wounds when laying. It makes it possible.

As shown in FIG. 4, the feeder line laying device 22 includes a fixing unit insertion hole 22a having a shape into which the fixed portion of the feeder cover device can be inserted, and a high frequency feeder covered and supported by the feeder cover device. To stably fix at the designated installation position and to maintain the proper separation distance from the metal to form a support support (22b), so that the cover device of FIG. Make it possible.

5 is a cross-sectional view of a state where a high frequency feed line according to the present invention and an upper power receiving device are installed, and a high frequency feed line 20 composed of a plurality of strands is provided on the feed line cover device 21 and the feed line laying device 22 according to the present invention. The power receiving device according to the present invention, particularly the power receiving device of the embodiment in which the "E" shape is provided in a state where a predetermined gap is maintained in the installed state, is shown.

Referring to the overall operation of the contactless large power supply and position information transmission device of the present invention configured as described above and the resulting effects and effects as follows.

In the high power supply and position information transmission device according to the present invention, as shown in FIGS. 1 and 2, first, a commercial three-phase AC power is supplied from a high frequency power converter 10 of a feeder to convert power into high frequency components. When the high frequency high power is transmitted to the high frequency feed line 20 at the secondary output terminal of the transformer T1, the capacitive impedance compensator 23 connected to the high frequency feed line uses two capacitive elements C2 and C3. The inductive impedance component is compensated for, and then, in the power receiver 50 of the power receiver, the power is absorbed by the contactless magnetic coupling from the high frequency power feeder 20 of the feeder, and finally, through the voltage stabilizer 60 of the rear stage. It is possible to deliver adequate power to the load.

In addition, a plurality of first communication modules 41 to 43 are attached to the high frequency feed line 20 at predetermined intervals, and the high frequency feed lines are installed in the first communication modules without a separate power line. The power receiving device 50 of the moving trolley moving along the section is absorbed power from the high frequency feed line 20 and is operated by the operation power supplied by using the intrinsic magnetic field. It is possible to immediately transmit the unique location information by using the infrared communication method, and thus the mobile truck can receive its own location information through the second communication module 70 mounted on the power receiving device.

According to the present invention, it is possible to supply a large amount of power to the mobile truck by the magnetic coupling method using the air gap rather than the physical contact method, thereby reducing the wear caused by friction and the occurrence of dust or dust caused by any electrical shock even in a humid environment It is useful to enable stable power supply without the risk of electrical shock or short circuiting.

In addition, the present invention has a communication module that operates by receiving power from the intrinsic magnetic field around the power receiving unit generated only when absorbing the magnetic field of the high-frequency feeder on the track in which a single feeder is installed so as to transmit the position information. And the trolley moving along the track is equipped with a power receiving device and a communication module to receive the location information, does not require a separate control power line, the location of the mobile trolleys used for transporting goods in most industrial sites It is possible to exchange information with control and stop station devices, and also to decelerate, stop, start position, goods of moving trolleys by using the position information in these moving sections of mobile trolleys, which have a predetermined place to load or load goods. Allows the user to specify information at will.

In addition, according to the present invention, since the contactless method does not require a separate power supply line and control line in the mobile truck and the fixed station, the mobile installation is easy to install at any position, and the disconnection phenomenon of the transmission signal generated by the existing method is also eliminated. As a result, it is possible to obtain the advantage of enabling the control of a stable transmission vehicle.

Claims (6)

A power supply unit which receives external commercial AC power and converts the radio frequency power into high frequency power and supplies the high frequency power feed line installed over the moving section of the mobile truck; Contactless large power supply and position information transmission, characterized in that it is installed in the moving trolley while maintaining a constant gap with the high-frequency feeder of the feeder, the power receiving unit receives power from the high-frequency feeder of the feeder in a self-guided manner. Device. The method of claim 1, A plurality of the high frequency feed line is disposed in each of the necessary sections along the moving section of the moving trolley, and is disposed below the high frequency feed line and is supplied with power from a magnetic field induced in the high frequency feed line of the feeder to start, stop, A plurality of first communication modules for transmitting positional information for deceleration and control of article information; A second communication mounted on the power receiving unit of the mobile truck and receiving current position information of the mobile truck for starting, stopping, decelerating, and controlling the information of the goods by using infrared communication with each of the first communication modules; Contactless large power supply and location information transmission device further comprising a module. The power feeding unit of claim 1 or 2, A high frequency power converter for converting into high frequency power by receiving an external commercial three-phase AC power; High frequency power transmission enameled cable composed of 0.08mm or more than 850 strands per strand and installed over the moving section of the mobile truck, and is connected to the secondary side of the high frequency power converter and directly receives and feeds high frequency power directly from the high frequency feeder. and; A feeder line covering device for covering and supporting the high frequency feeder in a surrounding shape; And a feeder wire laying device for stably fixing the high frequency feeder covered and supported by the feeder line covering device to a designated laying position. The method of claim 3, wherein the power supply unit, And an impedance compensator for coupling a capacitive element to the high frequency feed line in parallel to form a resonant circuit by coupling with an inductance component of the high frequency feed line itself. The said power receiving part of Claim 1 or 2, A power receiving device which absorbs electric power from the high frequency feed line in a non-contact manner by magnetic induction coupling while maintaining a space therebetween with the high frequency feed line; Non-contact large power supply and position information transmission device comprising a voltage stabilizer for adjusting the power induced in the power receiving device to deliver a stable voltage and current to the final load. The method of claim 5, wherein the power receiving unit, A capacitive element is connected to an input terminal of the voltage stabilizer so that the power receiver can induce maximum power, and two capacitive elements are connected in series to each of the two power lines of the power receiver. Non-contact large power supply and position information transmission device, characterized in that configured to form a resonant circuit and the series inductance of the power receiving device by connecting the elements in parallel.

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