Wireless power supply device and positioning system

Abstract

This application relates to the field of power supply technology, and discloses a wireless power supply device and a positioning system. The wireless power supply device includes a transmitting cable and a receiving cable. The transmitting cable extends from a first end of a Gray busbar to a second end along a first zigzag trajectory, and returns from the second end to the first end along a second zigzag trajectory. The first and second zigzag trajectories overlap at multiple locations, forming multiple overlapping regions. The transmitting cable is divided into multiple cable units by the overlapping regions, and the current on adjacent cable units generates induced magnetic fields in opposite directions. The receiving cable is mounted on an antenna box and electrically connected to the power-consuming device, obtaining electrical energy through electromagnetic induction with the transmitting cable. This application, through the design of the arrangement of the transmitting cable, reduces the overall induced magnetic field strength of the transmitting cable in the direction perpendicular to its plane, reduces electromagnetic interference to the Gray busbar positioning system, and can better adapt to the needs of low-power power supply.

Description

Technical Field

[0001] This application relates to the field of power supply device technology, specifically to a wireless power supply device and positioning system. Background Technology

[0002] In industrial production and daily life, many types of production equipment and products require electricity. In order to meet the electricity demand, corresponding power supply devices need to be configured.

[0003] With advancements in technology, wireless power supply devices, which achieve contactless power delivery based on the principle of electromagnetic induction, are becoming increasingly popular. These devices typically consist of a transmitting coil and a receiving coil. The transmitting coil, when connected to alternating current, generates an induced magnetic field. The receiving coil, through electromagnetic induction with the transmitting coil, acquires electrical energy, thus powering the device. Because wireless power supply eliminates the need for cables, it avoids the obstruction caused by cables during device movement, preventing issues like loose cables and poor contact. This offers significant advantages over traditional wired power supply methods. Currently, wireless power supply devices are widely used in various fields, such as logistics sorting, where they can power automated sorting equipment.

[0004] However, wireless power supply devices are difficult to apply to Gray bus positioning systems because Gray bus positioning systems also utilize the principle of electromagnetic induction. Specifically, a Gray bus positioning system includes a Gray bus as the transmitting end of the position signal and an antenna box as the receiving end of the position signal. The antenna box is installed on the target device to be located. As the target device moves, the circuit structure in the antenna box undergoes electromagnetic induction with the induced magnetic field generated by the Gray bus to transmit position signals in real time, thereby enabling the positioning of the target device. Therefore, if a conventional wireless power supply device is used to power the circuit structure in the antenna box, the induced magnetic field generated by the transmitting coil will severely interfere with the induced magnetic field generated by the Gray bus, affecting the normal operation of the Gray bus positioning system. Utility Model Content

[0005] In view of the above problems, this application provides a wireless power supply device and a positioning system, which can power the circuit structure in the antenna box through the wireless power supply device while reducing the interference of the wireless power supply device to the Gray bus module, so as to ensure the normal use of the Gray bus positioning system.

[0006] According to a first aspect of the present application, a wireless power supply device is provided for supplying power to an electrical device in an antenna box of a Gray bus module, comprising a transmitting cable and a receiving cable; the transmitting cable is installed at a Gray bus, extending from a first end of the Gray bus to a second end along a first zigzag trajectory, and returning from the second end to the first end along a second zigzag trajectory; the first zigzag trajectory and the second zigzag trajectory overlap each other at multiple locations along the extension direction of the Gray bus, forming multiple overlapping regions; in the extension direction of the Gray bus, the transmitting cable is divided into multiple cable units by the overlapping regions, and the current on two adjacent cable units generates induced magnetic fields in opposite directions; the receiving cable is installed on the antenna box and electrically connected to the electrical device; the receiving cable obtains electrical energy through electromagnetic induction with the transmitting cable.

[0007] In some embodiments, n cable units are provided between two adjacent overlapping regions, and every m cable units are repeatedly arranged in the extension direction of the Gray busbar; where n is a multiple of m.

[0008] In some embodiments, the spacing between any two adjacent overlapping regions is equal in the direction of extension of the Gray busbar.

[0009] In some embodiments, the first zigzag trajectory and the second zigzag trajectory are symmetrical with respect to the perpendicular bisector of the line connecting the two ends of the transmitting cable.

[0010] In some embodiments, both the first tortuous trajectory and the second tortuous trajectory are square-shaped.

[0011] In some embodiments, the receiving cable is spirally coiled, and the center of the receiving cable is located on one side of the perpendicular plane of the line connecting the two ends of the transmitting cable.

[0012] In some embodiments, multiple receiving cables are arranged along the extension direction of the Gray busbar.

[0013] In some embodiments, the wireless power supply device further includes a processing module, which is installed on the antenna box to electrically connect each of the receiving cables to the power-consuming device and output the larger of the induced electromotive forces generated by each of the receiving cables to the power-consuming device.

[0014] According to a second aspect of the embodiments of this application, a positioning system is provided, including a support base, a Gray bus module, and a wireless power supply device as described above; the support base is configured to extend along the movement path of the mobile device; the Gray bus module includes a Gray bus and an antenna box, the Gray bus is fixedly mounted on the support base, and the antenna box is fixedly mounted on the mobile device; the transmitting cable is fixedly mounted on the support base, the receiving cable is mounted on the antenna box, and the receiving cable is electrically connected to a power supply device in the antenna box.

[0015] In some embodiments, the first zigzag trajectory and the second zigzag trajectory are both square-shaped, and the first zigzag trajectory and the second zigzag trajectory are symmetrical with respect to the perpendicular bisector of the line connecting the two ends of the transmitting cable; the support base is provided with a plurality of cable grooves spaced apart along its extension direction, and the spacing between any two adjacent cable grooves is equal; the Gray busbar is partially housed in the cable groove, and the portions of the transmitting cable located in different overlapping areas are respectively housed in different cable grooves.

[0016] The wireless power supply device provided in this application embodiment designs the arrangement of the transmitting cables to form multiple cable units along the extension direction of the Gray busbar by intertwining them, and the current in adjacent cable units generates induced magnetic fields in opposite directions. In this way, the mutual influence of these opposite induced magnetic fields weakens the overall induced magnetic field strength of the transmitting cables in the direction perpendicular to their plane, reducing electromagnetic interference to the Gray busbar positioning system and ensuring its normal operation. Simultaneously, the weakened induced magnetic field perfectly suits the low-power supply requirements, enabling the wireless power supply device to be applied to the Gray busbar positioning system, replacing the traditional lithium battery power supply solution and reducing system maintenance costs and usage risks.

[0017] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the transmitting coil in an existing wireless power supply device; Figure 2A perspective view of the positioning system provided in the embodiments of this application; Figure 3 A perspective view of the wireless power supply device provided in the embodiments of this application; Figure 4 A schematic diagram of the structure of the Gray busbar in the positioning system provided in the embodiments of this application; Figure 5 A schematic diagram of the arrangement trajectory of the transmitting cable in the wireless power supply device provided in the embodiments of this application; Figure 6 A schematic diagram of the structure of the transmitting cable in the wireless power supply device provided in the embodiments of this application; Figure 7 A schematic diagram of another arrangement of the transmitting cable in the wireless power supply device provided in the embodiments of this application; Figure 8 Another schematic diagram of the transmitting cable in the wireless power supply device provided in the embodiments of this application; Figure 9 A schematic projection of the wireless power supply device provided in the embodiments of this application in a plane perpendicular to the plane containing the transmitting cable; Figure 10 A perspective view of another wireless power supply device provided in the embodiments of this application; Figure 11 A perspective view of the support base in the positioning system provided in the embodiments of this application.

[0019] The reference numerals in the detailed embodiments are as follows: 10. Wireless power supply device; 11. Transmitting cable; 12. Receiving cable; 20. Gray bus module; 21. Gray bus; 22. Antenna box; 30. Support base; 31. Cable tray; 100. Positioning system. Detailed Implementation

[0020] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0022] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A exists, A and B exist simultaneously, and B exists. In addition, the character " / " in this document generally indicates that the related objects before and after it have an "or" relationship.

[0025] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0026] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0027] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0028] In existing Gray busbar positioning systems, lithium batteries are typically used to power the circuitry within the antenna box. However, lithium batteries are flammable and explosive, posing significant safety hazards and increasing system maintenance costs and operational risks. Therefore, a superior antenna box power supply solution is urgently needed, and using a wireless power supply device is one viable option.

[0029] Since both the wireless power supply device and the Gray bus positioning system utilize the principle of electromagnetic induction, the problem of magnetic field interference must be overcome in order to apply the wireless power supply device to the Gray bus positioning system. Furthermore, considering that the antenna box is mounted on the target equipment to be located and moves with the target equipment, it is also necessary to maintain effective power supply throughout the movement of the antenna box.

[0030] Research has found that wireless power supply devices can be used to power some automated sorting equipment in the logistics sorting industry. Since sorting equipment frequently moves during operation, the transmitting coils of these wireless power supply devices are typically arranged along the moving path of the sorting equipment to maintain a stable power supply during this movement. For example, when the moving path of the sorting equipment is a straight line, such as... Figure 1 As shown, the conductors of the transmitting coil are arranged in a U-shape along the moving path of the sorting equipment. This arrangement causes the current in the conductors to generate an induced magnetic field perpendicular to the plane shown in the diagram within the area enclosed by the conductors. For example, when the current direction is clockwise as shown in the diagram, according to Ampere's law, an induced magnetic field perpendicular to the plane shown in the diagram is generated within the area enclosed by the conductors, thus accumulating more magnetic field energy within the area to meet the power requirements of the sorting equipment.

[0031] The aforementioned wireless power supply device, applied in the logistics sorting industry, enables contactless power supply to moving sorting equipment and is more suitable for powering moving antenna boxes compared to other types of wireless power supply devices. However, using... Figure 1 The transmitting coil arranged as shown accumulates a significant amount of magnetic field energy within the area enclosed by the conductors. When applied to a Gray busbar positioning system, this substantial magnetic field energy causes severe electromagnetic interference, affecting the system's normal operation. Therefore, wireless power supply devices used in logistics sorting cannot be directly used to power the antenna box's circuitry.

[0032] Considering that the power supply requirement of the antenna box is typically around 5W, far lower than the power supply required by the sorting equipment, the required strength of the induced magnetic field for wireless power supply can be reduced, and the magnetic interference caused by a lower magnetic field strength is also smaller. Based on the above considerations, this application provides a wireless power supply device that, by changing the arrangement of the transmitting coil, weakens the strength of the induced magnetic field generated by the transmitting coil under the same power supply parameters (voltage, current, resonant frequency, etc.). This reduces electromagnetic interference to the Gray busbar positioning system while meeting the power supply requirements of the antenna box, enabling the application of the wireless power supply device in the Gray busbar positioning system.

[0033] Please see Figure 2 and Figure 3 The wireless power supply device 10 provided in this application embodiment includes a transmitting cable 11 and a receiving cable 12. The transmitting cable 11 is installed at a Gray bus 21, extending from a first end of the Gray bus 21 to a second end in a first zigzag trajectory, and returning from the second end to the first end in a second zigzag trajectory. The receiving cable 12 is installed on an antenna box 22 and electrically connected to an electrical device in the antenna box 22. The receiving cable 12 obtains electrical energy through electromagnetic induction with the transmitting cable 11.

[0034] It should be noted that the Gray busbar 21 is typically a harness composed of multiple signal lines. Each signal line extends in the same direction and then turns back along the same path at different locations (see reference). Figure 4 As shown in the diagram, the longest signal line's fold-back position corresponds to the endpoint of the antenna box 22's moving path, covering the entire moving path of the antenna box 22. In this embodiment, the first end of the Gray bus 21 is the starting end of each signal line's extension, while the second end is the fold-back point of the longest signal line in the Gray bus 21. These two ends correspond to the two ends of the antenna box 22's moving path, rather than referring to the two connection ends of any single signal line. For example, in Figure 4 End A is the first end of Gray bus 21, and end B is the second end of Gray bus 21.

[0035] The first and second zigzag trajectories are non-linear, with multiple bends and / or turns occurring within them. This causes the first and second zigzag trajectories to intertwine and overlap at multiple locations along the extension direction of the Gray busbar 21 (i.e., the direction from the first end of the Gray busbar 21 to the second end), forming multiple overlapping regions. These overlapping regions can be points or line segments. Furthermore, along the extension direction of the Gray busbar 21, the transmitting cable 11 is divided into multiple cable units by the overlapping regions, and the currents on adjacent cable units generate induced magnetic fields in opposite directions.

[0036] In one implementation scheme, such as Figure 5 and Figure 6As shown, both the first tortuous trajectory T1 and the second tortuous trajectory T2 are trapezoidal wave shapes. The first tortuous trajectory T1 and the second tortuous trajectory T2 extend in the direction of the Gray line 21 (e.g., ...). Figure 6 The lines (in the direction C shown) intersect to form multiple overlapping regions, namely intersection points P1, P2, P3 and P4. The transmitting cable 11 is divided into cable units U1, U2, U3, U4 and U5 by each intersection point. As can be seen from the current direction marked at various points on the transmitting cable 11 in the figure, the current in two adjacent cable units is in opposite directions. According to Ampere's law, the current in two adjacent cable units will generate induced magnetic fields in opposite directions.

[0037] For example, the direction of the current in cable unit U2 is counterclockwise, generating an induced magnetic field perpendicular to the plane shown in the figure in the area enclosed by its conductors, and an induced magnetic field perpendicular to the plane shown in the figure in the area outside the area enclosed by its conductors. The direction of the current and the direction of the induced magnetic field generated in cable unit U3 are opposite to those of cable unit U2. In this way, the induced magnetic fields generated between adjacent cable units influence each other, thereby weakening the overall induced magnetic field strength of the transmitting cable 11 in the direction perpendicular to the plane shown in the figure, thus achieving the effect of reducing electromagnetic interference.

[0038] It is understandable that the shapes of the first and second zigzag trajectories can also be designed as other shapes, such as sine waves, rectangular waves, etc., as long as they achieve the effect of reducing electromagnetic interference through the same principle as the above scheme.

[0039] Please continue reading. Figure 2 and Figure 3 The receiving cable 12 is typically positioned on one side of the plane containing the transmitting cable 11, maintaining a certain distance to avoid direct contact. Therefore, the receiving cable 12 primarily undergoes electromagnetic coupling with the induced magnetic field perpendicular to the plane containing the transmitting cable 11. When the transmitting cable 11 is arranged as described above, the intensity of the induced magnetic field generated by the transmitting cable 11 on its perpendicular plane is weakened, which perfectly suits the low-power power supply requirements of the receiving cable 12 to the electrical components of the antenna box 22.

[0040] The wireless power supply device 10 provided in this application embodiment designs the arrangement of the transmitting cable 11 so that it is self-entwined and intertwined to form multiple cable units, and the current on adjacent cable units generates induced magnetic fields in opposite directions. In this way, the mutual influence of the opposite induced magnetic fields weakens the overall induced magnetic field strength of the transmitting cable 11 in the direction perpendicular to its plane, reducing electromagnetic interference to the Gray bus positioning system and ensuring its normal operation. Simultaneously, the weakened induced magnetic field strength perfectly matches the low-power power supply requirements, thus enabling the wireless power supply device to be applied to the Gray bus positioning system to replace the traditional lithium battery power supply solution, reducing system maintenance costs and usage risks.

[0041] In some embodiments, n cable units are provided between two adjacent overlapping areas, and every m cable units are repeatedly arranged in the extension direction of the Gray bus 21, where n is a multiple of m. For example, Figure 6 In the transmitting cable 11 shown, three cable units, U2, U3, and U4, are provided between two adjacent overlapping areas, and these three cable units are arranged repeatedly in direction C shown in the figure. Each cable unit has the same specifications. In other embodiments, an even number of cable units may be provided between two adjacent overlapping areas, such that every two adjacent cable units form a repeating unit.

[0042] The above embodiment uses a method of repeatedly arranging cable units between two adjacent overlapping areas in a certain pattern, so that the distribution of the induced magnetic field presents a certain pattern. The receiving cable 12 moves with the antenna box 22 and undergoes electromagnetic induction in the regularly distributed induced magnetic field, which is beneficial to improving the stability of power supply.

[0043] In some embodiments, the spacing between any two adjacent overlapping regions is equal along the extension direction of the Gray busbar 21. For example, in Figure 6 In the transmitting cable 11 shown, along direction C as illustrated, the spacing between intersection points P1 and P2, P2 and P3, and P3 and P4 are all equal. This arrangement ensures that each cable unit (e.g., ...) between adjacent overlapping areas... Figure 6 The cable units U2, U3 and U4 in the middle are all the same size in the extension direction of the Gray bus 21, which further optimizes the regularity of the cable unit arrangement, thereby further improving the stability of power supply.

[0044] In some embodiments, the first and second zigzag trajectories are symmetrical with respect to the perpendicular bisector of the line connecting the two ends of the transmitting cable 11. For example, in Figure 6In the transmitting cable 11 shown, the perpendicular bisector of the line connecting the two ends of the transmitting cable 11 is a straight line L1, and the first bend trajectory T1 and the second bend trajectory T2 are symmetrical with respect to the straight line L1. This arrangement makes the shape of the transmitting cable 11 uniform, which is beneficial to improving the stability of power supply.

[0045] Considering that when the transmitting cable 11 adopts such Figure 6 In the arrangement shown, the induced magnetic fields generated by the conductors near the overlapping area cancel each other out in a direction perpendicular to the plane shown. Specifically, for example, in region V of the figure, there are two conductors. The conductor on the left generates an induced magnetic field perpendicular to the plane shown outwards between the two conductors, while the conductor on the right generates an induced magnetic field perpendicular to the plane shown inwards between the two conductors. This causes the induced magnetic fields generated by the two conductors to cancel each other out. Such an arrangement may lead to a waste of magnetic field energy in some cases, affecting the efficiency of power supply.

[0046] In some embodiments, such as Figure 7 and Figure 8 As shown, the shapes of the first tortuous trajectory T1 and the second tortuous trajectory T2 are both set to square waveforms, such that the first tortuous trajectory T1 and the second tortuous trajectory T2 are in the extension direction of the Gray generatrix 21 (e.g., Figure 8 The overlapping areas formed by the intersections in the C direction shown are intersection lines Q1, Q2, etc., and each intersection line is parallel to the line connecting the two ends of the transmitting cable 11, that is, perpendicular to the perpendicular bisector L1 of the line connecting the two ends of the transmitting cable 11 shown in the figure. This setting is compared to... Figure 6 The arrangement shown eliminates, for example, the following Figure 6 In region V, magnetic field energy is prevented from canceling each other out and being wasted, thereby improving power supply efficiency.

[0047] In some embodiments, the receiving cable 12 is spirally coiled, and the center of the receiving cable 12 (i.e., the center of the spiral coiling of the receiving cable 12) is located on one side of the perpendicular bisector of the line connecting the two ends of the transmitting cable 11. Specifically, as shown... Figure 9 As shown, on the projection plane perpendicular to the plane containing the transmitting cable 11, the perpendicular bisector of the line connecting the two ends of the transmitting cable 11 is projected as a straight line L1, and the center point O of the receiving cable 12 is located above the line L1. Of course, the center point O can also be located below L1. When the receiving cable 12 is positioned as described above, compared to positioning it on the perpendicular bisector of the line connecting the two ends of the transmitting cable 11, simulation and field tests show that the receiving cable 12 has a higher electromagnetic coupling efficiency and a higher power supply efficiency.

[0048] In some embodiments, such as Figure 10As shown, multiple receiving cables 12 are arranged along the extension direction of the Gray bus 21, and each receiving cable 12 is mounted on the antenna box 22, capable of supplying power to the electrical devices on the antenna box 22. This design increases the coverage area of ​​the receiving cables 12 and improves power supply efficiency.

[0049] Considering that the induced current generated by the electromagnetic induction between the receiving cable 12 and the transmitting cable 11 is an alternating current, it needs to be converted to direct current before being output to the power device on the antenna box 22. However, if multiple receiving cables 12 are provided, connecting each receiving cable 12 to the power device through a different rectifier circuit would increase the space occupied by the circuit components and the cost. Based on the above considerations, in some embodiments, the wireless power supply device 10 also includes a processing module. The processing module is installed on the antenna box 22, electrically connects each receiving cable 12 to the power device, and outputs the larger of the induced electromotive forces generated by each receiving cable 12 to the power device.

[0050] Specifically, each receiving cable 12 is indirectly connected to the power user via a processing module, allowing the alternating current to be processed by the module before being output to the power user. The processing module typically includes a rectifier bridge and a BUCK circuit, capable of converting the alternating current to direct current. Furthermore, it can select the larger induced electromotive force generated by each receiving cable 12 for output when their magnitudes differ, maximizing power supply efficiency. This configuration, compared to connecting each receiving cable 12 independently to the power user in the antenna box 22 via different rectifier circuits, reduces the space occupied by circuit components and associated costs.

[0051] Please refer to it again. Figure 2 This application also provides a positioning system 100 for locating a mobile device, including a support base 30, a Gray bus module 20, and the aforementioned wireless power supply device 10. The support base 30 extends along the movement path of the mobile device. The Gray bus module includes a Gray bus 21 and an antenna box 22. The Gray bus 21 is fixedly mounted on the support base 30, and the antenna box 22 is fixedly mounted on the mobile device. A transmitting cable 11 is fixedly mounted on the support base 30, and a receiving cable 12 is mounted on the antenna box 22, and the receiving cable 12 is electrically connected to a power supply device in the antenna box 22.

[0052] The positioning system 100 provided in this application embodiment, by designing the arrangement of the transmitting cable 11, not only meets the power requirements of the antenna box 22, but also overcomes the problem of electromagnetic interference to the Gray bus module 20, thereby realizing the application of the wireless power supply device 10 in the Gray bus module 20.

[0053] In some embodiments, such as Figure 7 and Figure 8As shown, both the first zigzag trajectory T1 and the second zigzag trajectory T2 are square-wave-shaped, and the first zigzag trajectory T1 and the second zigzag trajectory T2 are symmetrical with respect to the perpendicular bisector L1 of the line connecting the two ends of the transmitting cable 11. At this time, as... Figure 11 As shown, the support base 30 has multiple cable slots 31 spaced apart along its extension direction, and the spacing between any two adjacent cable slots 31 is equal. The Gray busbar 21 is partially housed in the cable slots 31, and the portions of the transmitting cable 11 located in different overlapping areas are respectively housed in different cable slots 31.

[0054] Specifically, as mentioned above, the Gray busbar 21 is typically a bundle of multiple signal lines, each extending in the same direction and then turning back at different locations (see reference). Figure 4 As shown), therefore, the bends in each signal line can be fitted into different cable slots 31. And when the transmitting cable 11 adopts... Figure 8 In the arrangement shown, some conductors on the transmitting cable 11 that form overlapping areas (i.e., cross lines Q1, Q2, etc.) can also be inserted into the cable groove 31.

[0055] This design allows the Gray busbar 21 and the transmitting cable 11 to share the cable groove 31 on the support 30 for installation, eliminating the need for a separate installation structure or base for the transmitting cable 11, thus simplifying the structural design.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A wireless power supply device for supplying power to the electrical devices in the antenna box of a Gray bus module, characterized in that, Includes transmitting and receiving cables; The transmitting cable is used to be installed at the Gray bus, extending from the first end of the Gray bus to the second end in a first zigzag trajectory, and returning from the second end to the first end in a second zigzag trajectory; The first and second zigzag trajectories overlap at multiple locations along the extension direction of the Gray generatrix, forming multiple overlapping regions. In the extension direction of the Gray busbar, the transmitting cable is divided into multiple cable units by the overlapping area, and the current on two adjacent cable units generates induced magnetic fields in opposite directions. The receiving cable is used to install on the antenna box and is electrically connected to the power device; the receiving cable obtains electrical energy through electromagnetic induction with the transmitting cable.

2. The wireless power supply device according to claim 1, characterized in that, There are n cable units located between two adjacent overlapping areas, and every m cable units are repeatedly arranged in the extension direction of the Gray busbar; where n is a multiple of m.

3. The wireless power supply device according to claim 2, characterized in that, In the direction of extension of the Gray busbar, the spacing between any two adjacent overlapping regions is equal.

4. The wireless power supply device according to claim 3, characterized in that, The first and second zigzag trajectories are symmetrical with respect to the perpendicular bisector of the line connecting the two ends of the transmitting cable.

5. The wireless power supply device according to claim 4, characterized in that, Both the first and second tortuous trajectories are square-shaped.

6. The wireless power supply device according to claim 5, characterized in that, The receiving cable is spirally coiled, and the center of the receiving cable is located on one side of the perpendicular plane of the line connecting the two ends of the transmitting cable.

7. The wireless power supply device according to claim 6, characterized in that, Multiple receiving cables are arranged along the extension direction of the Gray busbar.

8. The wireless power supply device according to claim 7, characterized in that, The wireless power supply device further includes a processing module, which is installed on the antenna box to electrically connect each of the receiving cables to the power-consuming device and output the larger of the induced electromotive forces generated by each of the receiving cables to the power-consuming device.

9. A positioning system for locating a mobile device, characterized in that, Includes a support base, a Gray bus module, and a wireless power supply device as described in any one of claims 1-8; The support base is provided to extend along the movement path of the mobile device; The Gray bus module includes a Gray bus and an antenna box. The Gray bus is fixedly installed on the support base, and the antenna box is used to be fixedly installed on the mobile device. The transmitting cable is fixedly installed on the support base, the receiving cable is installed on the antenna box, and the receiving cable is electrically connected to the electrical device in the antenna box.

10. The positioning system according to claim 9, characterized in that, Both the first and second zigzag trajectories are square-shaped, and the first and second zigzag trajectories are symmetrical with respect to the perpendicular bisector of the line connecting the two ends of the transmitting cable. The support base has multiple cable slots spaced apart along its extension direction, and the spacing between any two adjacent cable slots is equal. The Gray busbar portion is housed within the cable groove, and the portions of the transmitting cable located in different overlapping areas are respectively housed within different cable grooves.

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