Power supply unit for external devices of a transport cart system using high frequency track cables

Abstract

To provide an electric power supply apparatus that can be conveniently installed without specific machining on an existing transport truck system.SOLUTION: An electric power supply apparatus for external devices in a transport truck system that includes a transport track installed on a ceiling at a work site, a transport truck installed to be movable along the transport track, a high frequency track cable through which high frequency current flows, a cable holder of the high frequency track cable, and an external device installed on the other side of the transport track, comprises: a wireless electric power generation module installed at one side of the cable holder adjacent to the external device and supplied with inductive power transmitted by magnetic induction through a magnetic field generated from the high frequency track cable; and a power supply conversion module converting inductive power supplied to the wireless electric power generation module to voltage required for operating the external device and then supplying the inductive power to the external device.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a power supply device, and more particularly, to a power supply device for an external device for a transport platform system using a high frequency track cable, which can be easily installed on a paved structure on one side of a transport platform system adjacent to an external device installed to monitor the status of a transport track or transport platform without any additional processing, and which can supply power required for operating the external device by receiving induced power through magnetic induction caused by a magnetic field generated from the high frequency track cable, and which does not require structural modification of the existing transport platform system or processing work for attaching a power supply device. [Background technology]

[0002] Generally, semiconductor and OLED production lines often use overhead hoist transports (OHTs) as transport platforms to transport objects. These OHTs are installed on the ceiling of the work site, making it difficult for workers to access them.

[0003] Fig. 1 is a schematic perspective view of a transport platform system using a conventional high frequency track cable, and Fig. 2 is a schematic cross-sectional view of the transport platform system using a conventional high frequency track cable. As shown in Fig. 1, the transport platform system (1000') comprises a transport platform (100') installed along a predetermined transport path on the ceiling of a work site, a transport platform (200') installed under the transport platform (100'), a vertical arm (301') extending upward from one side of the upper part of the transport platform (200'), horizontal arms (302') extending from both ends of the vertical arm (301'), and wheels (303') rotatably installed on both ends of the horizontal arm (302') and moving along the upper surface of each transport platform (100'), and the transport platform (200') is connected to the transport platform (100'). a high frequency track cable (400') arranged adjacent to the transport track (100') along the transport path as a conductor through which high frequency current flows; a cable holder (500') having one end connected to one side of the transport track (100') and the other end gripping the high frequency track cable (400'); and a wireless power generating means (600') installed on the vertical arm (301') for receiving induced power through magnetic induction caused by the magnetic field generated by the high frequency track cable (300') and generating the power required to drive the transport carriage (200').

[0004] The wireless power generating means 600' includes a current collecting core 601' installed on both sides of the vertical arm 301', and a current collecting coil 602' wound multiple times around the outer periphery of the current collecting core 601'.

[0005] The above-mentioned transport cart system (1000') converts the power supplied through the wireless power generating means (600') into DC power of a preset voltage and supplies it to the transport cart (200'), thereby moving the transport cart (200').

[0006] Meanwhile, the transport cart system (1000') may be provided with a separate external device (700') on the other side of the transport track (100') for monitoring the status of the transport track (100') and the transport cart (200'). However, since such external device (700') is placed on the ceiling of the work site where it is difficult for workers to access, it is difficult to install a separate power supply facility to drive it, and even if it is installed, there is a problem that additional costs are incurred due to the construction of additional facilities.

[0007] For the reasons mentioned above, Patent Document 1 proposes a cart transport system with a wireless power supply base that uses a high frequency track cable. A magnetic coupler is installed inside a cable holder and receives induced power generated by magnetic induction due to the magnetic field generated from the high frequency track cable, and power is supplied to external devices through this.

[0008] However, the aforementioned Patent Document 1 has the problem that a specially manufactured cable holder must be used so that the magnetic coupler can be installed inside the cable holder, and the problem that the structure of the cable holder must be changed or replaced in order to apply it to an already installed system. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Korean Patent Publication No. 10-2019-0045782 Summary of the Invention [Problem to be solved by the invention]

[0010] The present invention has been made to solve the above problems, and an object of the present invention is to provide a power supply device for an external device for a transport cart system using a high frequency track cable, which can be easily installed on a paved structure on one side of the transport cart system adjacent to an external device installed to monitor the status of the transport track or transport cart without any additional processing, and can receive induced power through magnetic induction caused by the magnetic field generated from the high frequency track cable to supply power required for the operation of the external device, thereby eliminating the need for structural changes to the existing transport cart system or processing of the structure to attach the power supply device. [Means for solving the problem]

[0011] The power supply device for external devices for a transport vehicle system using a high frequency track cable according to the present invention includes a transport vehicle system including a transport vehicle installed along a predetermined path on the ceiling of a work site, a transport vehicle installed movably along the transport vehicle system, a high frequency track cable arranged adjacent to each other along the length of the transport vehicle as a conductor through which a high frequency current flows, a cable holder extending laterally from one side of the transport vehicle and having one side gripping the high frequency track cable, and at least one external device installed on the other side of the transport vehicle system. The power supply device supplies power to the external devices from the transport vehicle system, the power supply device including: a wireless power generation module installed on at least one side of the cable holder adjacent to the external device and receiving induced power transmitted by magnetic induction due to a magnetic field generated from the high frequency track cable; and a power conversion module configured to convert the induced power supplied to the wireless power generation module into a predetermined voltage required for operation of the external device and supply the power to the external device.

[0012] Here, the cable holder may further include a magnetic module including at least one magnetic body that is installed at at least one position among the top, bottom, or side of the high frequency track cable, and forms a magnetic circuit that minimizes the magnetic resistance of the magnetic field generated from the high frequency track cable.

[0013] The wireless power generation module may include a coil winding section wound a plurality of times parallel to the cable holder on at least one side of the upper or lower surface of the cable holder, and receiving induced power transmitted by magnetic induction due to a magnetic field generated from the high frequency track cable, and a rectifier section converting the induced power supplied to the coil winding section into DC power and supplying the converted DC power to the power conversion module.

[0014] Meanwhile, the coil winding portion may include a first coil winding portion wound a plurality of times on an upper surface of the cable holder in parallel to the cable holder, and a second coil winding portion wound a plurality of times on a lower surface of the cable holder in parallel to the cable holder.

[0015] The magnetic module may include a first magnetic body disposed above the first coil winding portion and a second magnetic body disposed below the second coil winding portion.

[0016] The magnetic module may further include a third magnetic body installed on a side of the high-frequency track cable.

[0017] Meanwhile, the wireless power generating module may be configured such that one end of the first coil winding portion and one end of the second coil winding portion are connected to each other so that the direction of the magnetic field generated by the first coil winding portion and the direction of the magnetic field generated by the second coil winding portion are aligned, and the other end of the first coil winding portion and the other end of the second coil winding portion are connected to the rectifier.

[0018] The power conversion module includes a first power conversion module and a second power conversion module, the rectifier includes a first rectifier and a second rectifier, and the wireless power generation module includes a first wireless power generation module including a first coil winding section and the first rectifier to which one end of the first coil winding section is connected, and a second wireless power generation module including the second coil winding section and the second rectifier to which one end of the second coil winding section is connected, and the first wireless power generation module can be connected to the first power conversion module, and the second wireless power generation module can be connected to the second power conversion module.

[0019] In addition, the rectifier includes a first rectifier and a second rectifier, and the wireless power generating module includes a first wireless power generating module including a first coil winding unit and the first rectifier connected to one end of the first coil winding unit, and a second wireless power generating module including the second coil winding unit and the second rectifier connected to one end of the second coil winding unit, and may further include a switch module that connects the first wireless power generating module and the second wireless power generating module in series or in parallel to provide the power to the power conversion module. [Effects of the Invention]

[0020] According to the present invention, a high-frequency track cable on one side of a transport platform system adjacent to an external device installed to monitor the status of the transport truck or transport platform can be conveniently installed on an installed structure without any additional processing, and the power required to operate the external device can be supplied with induced power through magnetic induction caused by the magnetic field generated from the high-frequency track cable. Furthermore, since there is no need to modify the structure of the existing transport platform system or process the structure separately to attach a power supply device, the associated costs can be reduced. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a schematic perspective view of a conventional transport carriage system using a high frequency track cable. [Figure 2] 1 is a schematic cross-sectional view of a conventional transport carriage system using a high frequency track cable. [Figure 3] 1 is a schematic perspective view of a transport platform system using a high frequency track cable to which a power supply device according to the present invention is applied; [Figure 4] 1 is a diagram illustrating a wireless power generation module according to a first embodiment of the present invention. [Figure 5] 10(a) and 10(b) are diagrams illustrating a wireless power generating module according to a second and third embodiment of the present invention. [Figure 6] 10(a) and 10(b) are diagrams illustrating the magnetic resistance reduction effect of the wireless power generation module according to the present invention. [Figure 7] 4 is a diagram illustrating the influence of a magnetic field of a wireless power generating means on a wireless power generating module according to the present invention; [Figure 8] 1 is a diagram illustrating an example of a connection relationship between coil windings of a wireless power generating module according to an embodiment of the present invention; [Figure 9] 1 is a diagram illustrating an example of a connection relationship between a wireless power generation module and a power conversion module according to the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will now be described in detail with reference to the drawings.

[0023] It should be noted that the same components are denoted by the same reference numerals in the drawings as much as possible, and detailed descriptions of known functions and configurations that obscure the gist of the invention will be omitted.

[0024] 3 is a schematic perspective view of a transport platform system using a high frequency track cable to which a power supply device according to the present invention is applied, and FIG. 4 is a view for explaining a wireless power generation module according to a first embodiment of the present invention. The power supply device (1) according to the first embodiment of the present invention comprises a pair of transport tracks (100) installed along a predetermined path on the ceiling of a work site, a transport platform (200) installed under the pair of transport tracks (100), a transport frame (300) which includes a vertical arm (301) extending upward from one side of the upper part of the transport platform (200), horizontal arms (302) extending from both ends of the vertical arm (301), and wheels (303) rotatably installed at both ends of the horizontal arm (302) and moving along the upper surface of each transport track (100), and which moves the transport platform (200) along the transport track (100), and a high The transport carriage system (1000) includes high-frequency track cables (400) arranged adjacent to each other along the length of each transport track (100) as conductors through which high-frequency current flows, a pair of cable holders (500) extending inward from the inner surface of each transport track (100) and one end of which grips the high-frequency track cables (400), and at least one external device (700) installed on the outer surface of the transport track (100).The transport carriage system (1000) includes a wireless power generation module (10), a power conversion module (20), and a magnetic module (30) for supplying power to the external device (700).

[0025] Meanwhile, the transfer frame (300) is provided with a wireless power generating means (600) including current collecting cores (601) installed on both sides of the vertical arm (301) and current collecting coils (602) wound multiple times around the outer periphery of the current collecting cores (601), as described in the background art, which receives induced power transmitted by magnetic induction due to the magnetic field generated from the high frequency track cable (400), converts it into DC power of a preset voltage, and supplies it to the transfer cart (200).

[0026] The wireless power generation module (10) receives induced power generated by magnetic induction due to the magnetic field generated from the high-frequency track cable (400) and provides it to the power conversion module (20), and includes a coil winding section (11) and a rectifier section (not shown).

[0027] The coil winding portion (11) includes a first coil winding portion (11') that is wound multiple times on the upper surface of the cable holder (500) in parallel to the cable holder (500), and a second coil winding portion (11'') that is wound multiple times on the lower surface of the cable holder (500) in parallel to the cable holder (500).

[0028] In this embodiment, as shown in Figure 4, the first coil winding portion (11') and the second coil winding portion (11'') are simultaneously installed on the upper and lower surfaces of the cable holder (500), but the present invention is not limited to this and may be formed into a structure in which only the first coil winding portion (11') is installed on the upper surface of the cable holder (500) or only the second coil winding portion (11'') is installed on the lower surface of the cable holder (500).

[0029] The rectifier (not shown) converts the induction power supplied to the coil winding unit 11 into DC power and supplies the converted DC power to the power conversion module 20. The power conversion module 20 is installed on one side of the interior of the external device 700 as shown in Fig. 3 and is connected to the wireless power generation module 10 via a wired cable C. The power conversion module 20 converts the DC power supplied by the wireless power generation module 10 into a preset voltage and supplies it to the external device 700.

[0030] In this embodiment, as shown in FIG. 3, the power conversion module (20) is shown as being installed on one side of the inside of the external device (700) as an example, but the power conversion module (20) of the present invention can be installed at any location, such as on one side of the outside of the external device (700) or near the high frequency track cable (400), and is installed so as to connect the wireless power generation module (10) and the external device (700) in series.

[0031] The magnetic module (30) forms a magnetic circuit that minimizes the magnetic resistance of the magnetic field generated from the high frequency track cable (400), and as shown in Figure 4, includes a first magnetic body (31) installed above the first coil winding part (11'), a second magnetic body (32) installed below the second coil winding part (11''), and a third magnetic body (33) installed on the side of the high frequency track cable (400).

[0032] Here, the magnetic module (30) is arranged so that both ends of the third magnetic body (33) are adjacent to the respective ends of the first magnetic body (31) and the second magnetic body (32) so as to more clearly minimize the magnetic resistance of the magnetic field generated from the high-frequency track cable (400) through the magnetic circuit formed by the first magnetic body (31), the second magnetic body (32) and the third magnetic body (33).

[0033] In this embodiment, the magnetic module (30) is described as being separated into a first magnetic body (31), a second magnetic body (32), and a third magnetic body (33) as an example, but the present invention is not limited to this, and the first magnetic body (31), the second magnetic body (32), and the third magnetic body (33) may be integrally formed.

[0034] In addition, in this embodiment, a structure in which the magnetic module (30) includes a first magnetic body (31), a second magnetic body (32), and a third magnetic body (33) is illustrated as an example, but the present invention is not limited to this, and the magnetic module (30) may be formed into a structure in which the third magnetic body (33) is excluded.

[0035] 5(a) and 5(b) are diagrams illustrating wireless power generation modules according to second and third embodiments of the present invention.

[0036] As shown in FIG. 5, the wireless power generating modules (10) according to the second and third embodiments of the present invention differ only in the structure in which the coil winding portion (11) is arranged within the magnetic module (30), and the remaining configurations are the same as those of the first embodiment of the present invention, so detailed explanations thereof will be omitted.

[0037] More specifically, as can be seen from (a) of the wireless power generating module 10 according to the second embodiment of the present invention, the coil winding unit 11 can be installed only on the lower surface of the cable holder 500. And as can be seen from (b) of the wireless power generating module 10 according to the third embodiment of the present invention, the coil winding unit 11 can be installed only on the upper surface of the cable holder 500.

[0038] 6(a) and 6(b) are diagrams illustrating the magnetic resistance reduction effect of the wireless power generating module according to the present invention. Referring to FIG. 6(a), it can be seen that the path of the magnetic field generated by the high frequency current flowing through the high frequency track cable 400 is distributed radially around the high frequency track cable 400. As a result, the magnetic field generated from the high frequency track cable 400 has an increased magnetic resistance as it moves away from the high frequency track cable 400, and the magnetic field with increased magnetic resistance is not converted into induced power from the wireless power generating module 10.

[0039] Therefore, as can be seen from Figure 6 (b), the invention forms a magnetic circuit that can minimize the magnetic resistance of the magnetic field generated from the high frequency track cable (400) through the magnetic module (30) including the first magnetic body (31) installed on the top of the first coil winding part (11') constituting the wireless power generation module (10), the second magnetic body (32) installed on the bottom of the second coil winding part (11''), and the third magnetic body (33) installed on the side of the high frequency track cable (400).

[0040] In more detail, the magnetic field generated from the high frequency track cable (400) passes through the magnetic circuit formed through the magnetic module (30), minimizing the magnetic resistance while moving, and as a result, the magnetic field generated from the high frequency track cable (400) is transmitted more to the wireless power generation module (10), allowing more induced power to be generated through the wireless power generation module (10).

[0041] 7 is a diagram illustrating the influence of the magnetic field of the wireless power generating means on the wireless power generating module according to the present invention. As shown in FIG. 7, the wireless power generating means (600) includes the current collecting cores (601) installed on both sides of the vertical arm (301) and the current collecting coils (602) wound multiple times around the outer periphery of the current collecting cores (602), as described above, and receives induced power transmitted by magnetic induction due to the magnetic field generated from the high frequency track cable (400), converts it into DC power of a preset voltage, and supplies it to the transport cart (200), thereby moving the transport cart (200).

[0042] At this time, the capacity of the power supplied through the wireless power generating means 600 is at least several times, and in some cases several tens of times, greater than the capacity of the power supplied through the wireless power generating module 10. Furthermore, the current flowing through the current collecting coil 602 of the wireless power generating means 600 also induces an external magnetic field. At this time, the first coil winding portion 11' and the second coil winding portion 11'' of the wireless power generating module 10 may be interfered with by the external magnetic field generated by the wireless power generating means 600.

[0043] However, in the present invention, a magnetic path is formed along which the external magnetic field generated by the wireless power generating means (600) moves along the magnetic module (30), which includes a first magnetic body (31) installed on the top of the first coil winding portion (11'), a second magnetic body (32) installed on the bottom of the second coil winding portion (11''), and a third magnetic body (33) arranged on the side of the high-frequency track cable (400), as shown in Figure 7, so that the external magnetic field generated by the wireless power generating means (600) can be prevented from interfering with the wireless power generating module (10).

[0044] Although not specifically shown in the drawings, various examples of the power supply device according to the present invention will be described below. The power supply device according to the present invention may be configured to have a structure in which a first coil winding part and a second coil winding part are installed on the upper and lower surfaces of a cable holder, and a magnetic module including a first magnetic body installed on the upper side of the first coil winding part and a second magnetic body installed below the second coil winding part is installed.

[0045] In addition, the power supply device according to the present invention may be configured so that the coil winding unit is installed only on the upper surface of the cable holder, or the coil winding unit is installed only on the lower surface of the cable holder. In addition, the power supply device according to the present invention may be configured so that the coil winding unit is installed only on the upper surface of the cable holder and a magnetic module including a magnetic body installed above the coil winding unit is installed, or so that the coil winding unit is installed only on the lower surface of the cable holder and a magnetic module including a magnetic body installed below the coil winding unit is installed.

[0046] Although the above-described embodiment has been described as being limited to a case where a power supply device is installed on one of a pair of transport tracks of a transport cart system, the present invention is not limited thereto, and the power supply device may be installed on both sides of the transport track or multiple units may be installed along the transport track depending on the installation position and number of external devices.

[0047] As described above, the power supply device according to the present invention is installed on one side of the transport cart system adjacent to the external device, and generates power through the magnetic field generated from the high frequency track cable to supply it to the external device. This eliminates the need for structural changes to the existing transport cart system or the need for additional equipment for power supply, thereby reducing the associated costs.

[0048] 8 is a diagram illustrating an example of the connection relationship of the coil winding units of the wireless power generating module according to the present invention. As shown in FIG. 8, the wireless power generating module (10) according to the present invention includes a first coil winding unit (11'), a second coil winding unit (11'', a resonating unit (12) and a rectifying unit (13).

[0049] Here, the resonator 12 can be configured with an inductor determined by the characteristics of the connection between the first coil winding 11' and the second coil winding 11''. In many cases, a capacitor is used as the resonator 12, and it plays a role in maximizing the conversion efficiency of the power induced in the first coil winding 11' and the second coil winding 11''.

[0050] The rectifier unit 13 converts the power maximized through the resonator unit 12 into DC power and provides it to the power conversion module 20. Meanwhile, in the present invention, the first coil winding unit 11' and the second coil winding unit 11'' which are wound multiple times parallel to the cable holder can be arranged on the top or bottom of the cable holder or facing the cable holder.

[0051] In this case, the present invention has a structure in which one end (A1) of the first coil winding portion (11') is connected to the other end (A2') of the second coil winding portion (11'') so that the direction of the magnetic field generated by the first coil winding portion (11') and the direction of the magnetic field generated by the second coil winding portion (11'') are the same, and the other end (A2) of the first coil winding portion (11') and one end (A1') of the second coil winding portion (11'') are connected to the resonance portion (12).

[0052] As described above, in the wireless power generation module (10) according to the present invention, when the first coil winding unit (11') and the second coil winding unit (11'') are arranged on the upper or lower surface of the cable holder, or when the first coil winding unit (11') and the second coil winding unit (11'') are arranged facing each other on the cable holder, they are interconnected to increase the number of windings, thereby generating induced power with a higher voltage. The rectifier unit (13) converts the generated induced power into DC power and supplies it to the power conversion module (20), which then converts the DC power into a preset voltage required for the operation of an external device and supplies it to the external device.

[0053] Although not specifically shown in the drawings, the wireless power generating module of the present invention may have a resonating unit separated into a first resonating unit and a second resonating unit, and a rectifying unit separated into a first rectifying unit and a second rectifying unit. The first coil winding unit may be disposed on an upper surface or a lower surface of the cable holder and connected to the first resonating unit and the first rectifying unit to form a first wireless power generating module, and an output of the first rectifying unit may be connected to the first power conversion module.

[0054] In addition, the second coil winding unit is disposed opposite the first coil winding unit across the cable holder and is connected to the second resonating unit and the second rectifying unit to form a second wireless power generation module, and the output of the second rectifying unit can be connected to the second power conversion module.

[0055] In the above-described method, the inductive power generated through the first wireless power generation module and the second wireless power generation module is converted into DC power through the respective first rectifier and second rectifier, and then converted into a predetermined voltage required for the operation of the external device through the respective first power conversion module and second power conversion module, and can be supplied to the external device.

[0056] 9 is a diagram illustrating an example of a connection relationship between a wireless power generating module and a power conversion module according to the present invention. As shown in FIG. 9, the wireless power generating module 10 according to the present invention may include a first wireless power generating module 10′ in which a first coil winding unit 11′, a first resonating unit 12′, and a first rectifying unit 13′ are sequentially connected, and a second wireless power generating module 10″ in which a second coil winding unit 11″, a second resonating unit 12″, and a second rectifying unit 13″ are sequentially connected.

[0057] Also, the power converter may further include a switch module (40) for connecting the first wireless power generating module (10') and the second wireless power generating module (10'') in series or parallel with the power conversion module (20).

[0058] As described above, the present invention further includes a switch module (40), so that if the voltage of the DC power generated by the first wireless power generating module (10') and the second wireless power generating module (10'') is lower than a preset voltage, the first wireless power generating module (10') and the second wireless power generating module (10'') can be connected in series to supply DC power having the preset voltage to an external device.

[0059] In addition, if any one of the voltages of the DC power generated by the first wireless power generating module (10') and the second wireless power generating module (10'') is higher than a preset voltage, the first wireless power generating module (10') and the second wireless power generating module (10'') can be connected in parallel to supply DC power having the preset voltage to an external device.

[0060] Although the present invention has been described in terms of preferred embodiments, various modifications and variations can be made without departing from the spirit and scope of the invention, and it is therefore intended by the appended claims to cover all such modifications and variations that fall within the spirit and scope of the invention. [Explanation of symbols]

[0061] 1 Power supply device 10. Wireless power generation module 10' First wireless power generation module 10'' Secondary Wireless Power Generation Module 11 Coil winding section 11' First coil winding section 11'' Second coil winding section 12 Resonance part 12' 1st resonance part 12'' 2nd resonator 13 Rectifier 13' 1st rectifier 13'' 2nd rectifier 20 Power Conversion Module 30 Magnetic Module 31 First magnetic body 32 Second magnetic body 33 Third magnetic substance 40 Switch Module 100 transport trucks 200 Transport trolley 300 Transfer Frame 301 Vertical Arm 302 horizontal arm 303 wheel 400 High Frequency Track Cable 500 Cable Holder 600 Wireless power generation means 601 Collector core 602 Collector coil 700 External equipment C. Wired cable 1000 Transfer Cart System

Claims

1. A power supply device for supplying power to an external device from a transport cart system including a transport track installed along a preset route on a ceiling of a work site, a transport cart installed movably along the transport track, high frequency track cables arranged adjacent to each other along a length direction of the transport track as conductors through which high frequency current flows, a cable holder extending laterally from one side of the transport track, one side of which grips the high frequency track cable, and at least one external device installed on the other side of the transport track, a wireless power generation module installed on at least one side of the cable holder adjacent to the external device and receiving induced power transmitted by magnetic induction due to a magnetic field generated from the high frequency track cable; a power conversion module that converts the induced power supplied to the wireless power generation module into a preset voltage required for the operation of the external device and supplies the voltage to the external device; a magnetic module including at least one magnetic body that is installed at at least one of an upper portion, a lower portion, or a side portion of the high frequency track cable of the cable holder and forms a magnetic circuit to minimize the magnetic resistance of the magnetic field generated from the high frequency track cable; 1. A power supply device for an external device of a transport cart system using a high frequency track cable, comprising:

2. The wireless power generation module includes: a coil winding part that is wound a plurality of times on at least one of an upper surface or a lower surface of the cable holder in parallel with the cable holder and receives induced power transmitted by magnetic induction due to a magnetic field generated from the high frequency track cable; 2. The power supply device for an external device for a transport platform system using a high frequency track cable according to claim 1, further comprising: a rectifier unit which converts the induced power supplied to the coil winding unit into DC power and supplies the converted DC power to the power conversion module.

3. The coil winding portion includes: a first coil winding portion wound a plurality of times on an upper surface of the cable holder in parallel with the cable holder; a second coil winding portion wound a plurality of times on a lower surface of the cable holder in parallel with the cable holder; 3. The power supply device for an external device of a transport platform system using a high frequency track cable according to claim 2, further comprising:

4. The magnetic module includes: a first magnetic body disposed on an upper portion of the first coil winding portion; a second magnetic body disposed under the second coil winding portion; 4. The power supply device for an external device of a transport platform system using a high frequency track cable according to claim 3, further comprising:

5. The magnetic module includes:

5. The power supply device for an external device of a transport platform system using a high frequency track cable according to claim 4, further comprising a third magnetic body installed on a side of the high frequency track cable.

6. The wireless power generation module includes:

4. The power supply device for an external device for a transport platform system using a high frequency track cable according to claim 3, wherein one end of the first coil winding portion and one end of the second coil winding portion are connected to each other so that a direction of a magnetic field generated by the first coil winding portion and a direction of a magnetic field generated by the second coil winding portion are aligned with each other, and the other end of the first coil winding portion and the other end of the second coil winding portion are connected to the rectifier.

7. The power conversion module includes a first power conversion module and a second power conversion module, and the rectification unit includes a first rectification unit and a second rectification unit; The wireless power generation module includes: a first wireless power generating module including a first coil winding unit and a first rectifier unit to which one end and the other end of the first coil winding unit are connected; a second wireless power generating module including the second coil winding unit and the second rectifier unit to which one end and the other end of the second coil winding unit are connected; Including, 4. The power supply device for external equipment for a transport platform system using a high frequency track cable according to claim 3, wherein the first wireless power generation module is connected to the first power conversion module, and the second wireless power generation module is connected to the second power conversion module.

8. the rectification unit includes a first rectification unit and a second rectification unit, The wireless power generation module includes: a first wireless power generating module including a first coil winding section and the first rectifier section to which one end and the other end of the first coil winding section are connected; a second wireless power generating module including the second coil winding unit and the second rectifier unit to which one end and the other end of the second coil winding unit are connected; Including, 4. The power supply device for an external device for a transport platform system using a high frequency track cable according to claim 3, further comprising a switch module which connects the first wireless power generation module and the second wireless power generation module in series or in parallel to provide the power to the power conversion module.

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