Electric energy receiving device, static transmitting device, dynamic transmitting track and magnetic coupling system

Abstract

The embodiment of the invention provides an electric energy receiving device, a static transmitting device, a dynamic transmitting track and a magnetic coupling system, and relates to the technical field of wireless charging. The electric energy receiving device comprises a first coil group and a second coil group which have an overlapping area and do not coincide with each other; the first coil group and the second coil group have an overlapping area and are not overlapped; coils in the first coil group are independently arranged on a first plane; and adjacent coils in the second coil group are wound on the second plane in different directions and are communicated. According to the embodiment of the invention, common requirements of wireless static charging and wireless dynamic charging are compatible, and stable and efficient wireless power receiving can be realized in different scene modes.

Description

Technical Field

[0001] The present application relates to the field of wireless charging technology, and specifically to an electric energy receiving device, a static transmitting device, a dynamic transmitting track, a magnetic coupling system and a vehicle. Background Art

[0002] When electric vehicles are parked and wirelessly charged, the transmitting coil and the receiving coil will inevitably be offset, resulting in uneven magnetic field distribution between the coils and reduced energy transmission efficiency. The existing technology can use some solutions to improve the anti-offset performance in static charging scenarios.

[0003] However, in actual situations, there are two states of vehicle operation: static and dynamic. The existing anti-offset wireless charging technology is not compatible with both static and dynamic wireless charging scenarios. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide an electric energy receiving device, a static transmitting device, a dynamic transmitting track and a magnetic coupling system to at least solve some of the problems in the background technology.

[0005] In order to achieve the above-mentioned purpose, the present application provides an electric energy receiving device, including: a first coil group and a second coil group having an overlapping area and not overlapping; the coils in the first coil group are independently arranged on a first plane; and adjacent coils in the second coil group are wound in opposite directions on the second plane and are connected.

[0006] Preferably, an arrangement direction of the coils in the first coil group is orthogonal to an arrangement direction of the coils in the second coil group.

[0007] Preferably, the number of coils in the first coil group is the same as the number of coils in the second coil group.

[0008] Preferably, the first coil group includes a second coil and a fourth coil, and the second coil and the fourth coil are arranged along the symmetry axis.

[0009] Preferably, the second coil group includes a first coil and a third coil, and the arrangement direction of the first coil and the third coil is orthogonal to the arrangement direction of the coils in the first coil group.

[0010] Preferably, the second coil and the fourth coil have the same area, and / or the first coil and the third coil have the same area.

[0011] Preferably, each half area region where the second coil and the fourth coil are close to each other and each half area region where the first coil and the third coil are close to each other serve as the overlapping region.

[0012] Preferably, the electric energy receiving device further comprises a first iron core; the axial direction of the first iron core is the same as the arrangement direction of the coils in the first coil group or the second coil group.

[0013] The present application also provides a static transmitting device, comprising: a transmitting coil group wound in opposite directions and connected on the same plane.

[0014] Preferably, the transmitting coil group comprises a fifth coil and a sixth coil which are wound in opposite directions and connected on the same plane.

[0015] Preferably, it further comprises: a second iron core, wherein the axial direction of the second iron core is the same as the arrangement direction of the coils in the transmitting coil group.

[0016] The present application also provides a magnetic coupling system, which includes: the aforementioned static transmitting device and the aforementioned electric energy receiving device; the transmitting coil group in the static transmitting device can be directly opposite to the position of the second coil group in the electric energy receiving device.

[0017] Preferably, the coils in the transmitting coil group in the static transmitting device have the same area as the coils in the second coil group.

[0018] Preferably, the coils in the first coil group and the coils in the second coil group of the power receiving device can be connected to the power load through corresponding compensation circuits and rectification circuits; the power in the static transmitting device can be coupled to the transmitting coil group through corresponding inverter circuits and compensation circuits.

[0019] The present application also provides a dynamic launching track, comprising: a plurality of top plates, wherein launching column assemblies for supporting the top plates are provided on both sides below any of the top plates; a base plate, through which adjacent launching column assemblies are connected front and back; a first cable and a second cable, wherein the first cable and the second cable cross and pass around the launching column assemblies from opposite directions, so that the polarities of adjacent launching column assemblies are opposite.

[0020] Preferably, each emitting column assembly includes a first emitting column and a second emitting column, the top ends of the first emitting column and the second emitting column support two sides of a top plate, the bottom end of the first emitting column is connected to the previous substrate among the adjacent substrates, and the bottom end of the second emitting column is connected to the next substrate among the adjacent substrates.

[0021] The present application also provides a magnetic coupling system, which includes: the aforementioned dynamic transmitting track and the aforementioned power receiving device; the power receiving device is located above the dynamic transmitting track so as to move along the dynamic transmitting track with the arrangement direction of the coils in the first coil group as the movement direction.

[0022] Preferably, the coil in the first coil group and the coil in the second coil group of the power receiving device are both connected to the power load through corresponding compensation circuits and rectification circuits;

[0023] The electric energy in the dynamic emission track is coupled to the emission track through the corresponding inverter circuit and compensation circuit.

[0024] The present application also provides a vehicle, which includes the aforementioned electric energy receiving device.

[0025] The present application also provides an electronic device, which includes the aforementioned power receiving device.

[0026] Preferably, the electronic device is an electric car.

[0027] The above technical solution has the following beneficial effects: the power receiving device in the present application takes into account the magnetic flux compensation characteristics under static offset and dynamic offset by setting two groups of coils. The compensation method provided is compatible with the common needs of static and dynamic wireless charging. Only one power receiving device is needed to achieve relatively stable and efficient wireless charging in the above two scenario modes.

[0028] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0030] Figure 1 The schematic diagram shows the structure of a receiving coil in a power receiving device according to an embodiment of the present application;

[0031] Figure 2 The schematic diagram shows the structure of a transmitting coil group in a static transmitting device according to an embodiment of the present application;

[0032] Figure 3 A system structure diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown;

[0033] Figure 4 A circuit diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown;

[0034] Figure 5 A coupling distribution diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown;

[0035] Figure 6A partial structural diagram of a dynamic launch track according to an embodiment of the present application is schematically shown;

[0036] Figure 7 A system structure diagram of another magnetic coupling system according to an embodiment of the present application is schematically shown;

[0037] Figure 8 A circuit diagram of another magnetic coupling system according to an embodiment of the present application is schematically shown;

[0038] Fig. 9 A coupling distribution diagram of another magnetic coupling system according to an embodiment of the present application is schematically shown.

[0039] Description of Reference Numerals

[0040] 1-first coil; 2-second coil; 3-third coil; 4-fourth coil; 5, 6, 7, 8, 9, 10, 13, 14, 15-iron core; 11-fifth coil; 12-sixth coil; 16-top plate; 17, 18-pillars; 19-base plate; 20-first cable; 21-second cable. DETAILED DESCRIPTION

[0041] The specific implementation of the embodiment of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present application, and is not used to limit the embodiment of the present application.

[0042] Figure 1 The structure diagram of the receiving coil in the electric energy receiving device according to the embodiment of the present application is schematically shown. Figure 1 As shown, an electric energy receiving device includes a receiving coil and a receiving circuit; wherein the receiving coil includes: a first coil group and a second coil group with an overlapping area, the two coil groups are wound in different ways, and are not located in the same plane. The upper and lower relationship between the first plane and the second plane is not limited. Under normal circumstances, the second coil group is the main receiving coil, and the first coil group is the offset compensation coil, thereby achieving offset compensation during wireless charging. The coils in the first coil group are independently arranged, that is, the coils in the group and their corresponding receiving circuits receive electric energy independently, so as to achieve the desired effect. Figure 1 For example, the first coil group is composed of the second coil 2 and the fourth coil 4. The adjacent coils in the second coil group are wound in opposite directions on the same plane and are connected, that is, the coils in the group share a receiving circuit to receive electrical energy. The second coil group is composed of the first coil 1 and the third coil 3. Figure 1 As shown, coil No. 2 and coil No. 4 are two separate receiving coils that are orthogonal to and partially overlap coil No. 1 and coil No. 3, and are placed above and in the middle of coil No. 1 and coil No. 3.

[0043] This embodiment forms a longitudinal compensation mechanism by overlapping two coil groups, which improves the anti-drift performance of the system in static scenarios. At the same time, the longitudinal receiving ends are cross-arranged to reduce the coupling fluctuation of the system in dynamic scenarios, and the transverse compensation mechanism improves the stability of the system and enhances the anti-drift performance in dynamic scenarios.

[0044] In the previous embodiment, the first coil group and the second coil group may be at a certain angle to achieve compensation. In some optional embodiments, the arrangement direction of the coils in the first coil group is orthogonal to the arrangement direction of the coils in the second coil group, and the compensation effect is optimal at this time.

[0045] like Figure 1 As shown, the second coil group, that is, the first coil 1 and the third coil 3 wound in opposite directions and connected on the same plane, are arranged in the Y direction shown in the figure. The first coil group, that is, the second coil 2 and the fourth coil 4, partially overlap with the first coil 1 and the third coil 3 respectively, that is, they are arranged in the X direction orthogonal to the Y direction. The first coil 1, the second coil 2, the third coil 3 and the fourth coil 4 are distributed in a cross shape. The above multiple coils are connected in parallel through an external circuit to achieve relatively stable transmission. In common usage scenarios, the X direction is the lateral direction, and the first coil 1 and the third coil 3 in the Y direction provide longitudinal compensation.

[0046] Figure 1 Only the case where both the first coil group and the second coil group have two coils is illustrated. When there are more than two coils in the coil group, their arrangement and distribution are derived by analogy with the case of two coils. For example, multiple separate receiving coils are arranged along the X direction, and multiple receiving coils that are wound in opposite directions and connected are arranged along the Y direction, and the arrangement directions of the two are orthogonal to each other.

[0047] In some optional embodiments, the second coil and the fourth coil have the same area, and / or the first coil and the third coil have the same area. When the second coil and the fourth coil have the same area, a relatively equal magnetic flux can be provided, so that the change of compensation energy is more stable. When the first coil and the third coil have the same area, the received electric energy is more stable based on the consideration of the change of magnetic flux.

[0048] In some optional embodiments, the half area of ​​the second coil and the fourth coil close to each other and the half area of ​​the first coil and the third coil close to each other are the overlapping areas. This embodiment further defines the overlapping area between the coils, and defines the aforementioned overlapping area as the central area of ​​the cross-shaped structure formed by the aforementioned multiple coils, which is conducive to providing a larger optimal power receiving area for the power receiving device.

[0049] In summary, the power receiving device in this embodiment is compatible with the common requirements of static and dynamic wireless charging, and only one power receiving device is needed to achieve relatively stable and efficient wireless power reception in both static and dynamic scene modes.

[0050] Likewise Figure 1 As shown, in some embodiments of the present application, the electric energy receiving device further includes a plurality of iron cores, namely, iron cores 5 to 10 in the figure, and a plurality of iron cores are arranged on the receiving coil, the effect of which is to strengthen the coupling between the transmitting and receiving ends.

[0051] The layout directions of the above several cores are determined based on the cross-shaped distribution. As shown in the figure, the axial direction of core 5, core 6, and core 7 is the first direction of the cross-shaped distribution, and the three are arranged at intervals between the edge and the center axis of the coil. The axial direction of core 5, core 6, and core 7 is the second direction of the cross-shaped distribution orthogonal to the first direction, and they are also arranged at intervals between the edge and the center axis of the coil.

[0052] The receiving circuit in the electric energy receiving device includes a compensation circuit and a rectification circuit. The first coil 1 and the third coil 3 are the first group, the second coil 2 and the fourth coil 4 are the second group and the third group respectively, and each group provides the electric energy received by the coil to the load through the corresponding compensation circuit and rectification circuit.

[0053] In the present application, a static transmitting device is also provided, comprising: a transmitting coil group wound in opposite directions and connected on the same plane. Exemplarily, the structure of the transmitting coil group is similar to that of the second coil group. Figure 2 The structure diagram of the transmitting coil group in the static transmitting device according to the embodiment of the present application is schematically shown. Figure 2 As shown, the transmitting coil group in the static transmitting device includes: a fifth coil 11 and a sixth coil 12 which are wound in opposite directions and connected on the same plane.

[0054] In some embodiments, the iron cores 13, 14, and 15 are placed under the transmitting coil to strengthen the coupling between the transmitting and receiving ends. After the coil is connected to the external circuit, energy transmission in a static charging scenario can be achieved.

[0055] Figure 3 The system structure diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown. The system includes: the aforementioned static transmitting device and the electric energy receiving device. Figure 3As shown, it illustrates a possible relative position of the power receiving device and the static transmitting device in the magnetic coupling system. The preferred position is that the transmitting coil group in the static transmitting device is directly opposite to the position of the second coil group in the power receiving device, at which time the magnetic flux coupling is the best. In the magnetic coupling system, when the power receiving device is within the range of the static transmitting device, the static transmitting device can achieve magnetic coupling with the receiving device to provide wireless charging for the stationary electric vehicle. At this time, the first coil 1 and the third coil 3 in the power receiving device serve as the main power receiving coils, and the second coil 2 and the fourth coil 4 serve as offset compensation coils. When the first coil 1 and the third coil 3 are directly opposite to the fifth coil 11 and the sixth coil 12 in the static transmitting device, the received magnetic flux is the largest and the coupling degree is the highest. Since the second coil 2 and the fourth coil 4 are located directly above the middle of the static transmitting device, the magnetic flux entering the coil is equal to the magnetic flux passing through the coil, the net magnetic flux is zero, and the coupling is minimal. When the relative position of the power receiving coil and the static transmitting device is offset, the coupling performance of the first coil 1 and the third coil 3 begins to decrease due to the misalignment, and the second coil 2 and the fourth coil 4 are offset to the top of the fifth coil 11 and the sixth coil 12. The magnetic flux entering the coil and the magnetic flux exiting the coil are no longer equal, and the net magnetic flux is no longer zero. The coupling degree increases, thereby compensating for the reduced coupling degree of the first coil 1 and the third coil 3. It can be seen that the compensation provided by the second coil 2 and the fourth coil 4 can improve the anti-offset performance of the power receiving device in a static scene, and greatly improve the power receiving efficiency.

[0056] Figure 4 A circuit diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown; Figure 4 As shown, the circuit of the static transmitting device includes a power supply, an inverter circuit and a compensation circuit, and the output of the compensation circuit is used to provide electric energy to the transmitting coil group. The receiving circuit in the electric energy receiving device includes a compensation circuit and a rectifier circuit. The first coil and the third coil are connected to the load through the first compensation circuit and the first rectifier circuit; the second coil is connected to the load through the second compensation circuit and the second rectifier circuit; the fourth coil is connected to the load through the third compensation circuit and the third rectifier circuit. After each receiving coil in the receiving device is connected to the rectifier circuit respectively, it is connected in parallel to the load for charging. The aforementioned rectifier circuit is a bridge rectifier circuit, the inverter circuit is a bridge inverter circuit, and the compensation circuit includes a compensation capacitor and a compensation resistor.

[0057] In an optional embodiment of the present application, the transmitting coil in the static transmitting device is the same size as the receiving coil in the electric energy receiving device. When the two are the same size, the coupled magnetic flux can be maximized. The transmitting coil and the receiving coil are preferably bipolar transmitting coils, and the transmitting distance is longer. The transmitting coil and the receiving coil are the same size, and the transmitting energy can be received to the maximum extent, saving energy. The transmitting coil is preferably a bipolar transmitting coil, and the transmitting distance is longer. The transmitting distance of the transmitting coil in this embodiment is longer, and when the receiving end is the same size as the transmitting end, the transmitting energy can be received to the maximum extent, significantly saving energy.

[0058] Figure 5 The coupling distribution diagram of a magnetic coupling system according to an embodiment of the present application is schematically shown. Figure 5 As shown, the red region (representing a high coupling coefficient) is relatively large, and exhibits strong anti-offset performance in both the X and Y directions.

[0059] Figure 6 The following schematically shows a partial structural diagram of a dynamic launch track according to an embodiment of the present application. Figure 6 As shown, the dynamic launch track includes: a plurality of top plates 16, with launch column assemblies for supporting the top plates being provided on both sides below each top plate 16; a base plate 19, adjacent launch column assemblies being connected front and back through the base plate 19; a first cable 20 and a second cable 21, the first cable 20 and the second cable 21 crossing and passing around the launch column assemblies from opposite directions, so that the polarities of adjacent launch column assemblies are opposite; the layout direction of the plurality of top plates 16 or the layout direction of the plurality of base plates 19 determines the layout direction of the dynamic launch track.

[0060] In some optional embodiments, the emitting column assembly is arranged in the following manner: each emitting column assembly includes a first emitting column 17 and a second emitting column 18, the top ends of the first emitting column 17 and the second emitting column 18 support two sides of a top plate 16, the bottom end of the first emitting column is connected to the previous substrate among the adjacent substrates, and the bottom end of the second emitting column is connected to the next substrate among the adjacent substrates.

[0061] The dynamic launch track in this embodiment adopts a guide rail type dynamic launch end, which improves the pressure resistance, increases the service life, simplifies the control circuit, and reduces the production cost.

[0062] In some embodiments of the present application, the distance between adjacent top plates is determined according to the size of the second coil 2 and the fourth coil 4. For example, the top plate length plus the top plate spacing is equal to the length formed by the second coil 2 and the fourth coil 4. By setting the distance in this way, when one of the second coil 2 and the fourth coil 4 is directly above the transmitting column, the other will not have magnetic flux coupling with the adjacent transmitting column with opposite polarity, thereby avoiding the loss of magnetic flux receiving efficiency.

[0063] In some embodiments of the present application, the top plate 16, the pillars 17, the pillars 18 and the base plate 19 are ferrites, and the first cable 20 and the second cable 21 are copper wires. The above material selection can significantly enhance the magnetic permeability and improve the magnetic flux coupling efficiency.

[0064] The above implementation method adopts a rail-type dynamic launch end, which can improve the pressure resistance, increase the service life of the launch track, simplify the control circuit, and reduce the production cost.

[0065] Figure 7 The system structure diagram of another magnetic coupling system according to the embodiment of the present application is schematically shown. The magnetic coupling system includes the aforementioned dynamic transmitting track and the electric energy receiving device. Figure 7 As shown, it schematically illustrates a possible positional relationship of the aforementioned power receiving device on the dynamic transmitting track. In this magnetic coupling system, the second coil 2 and the fourth coil 4 in the power receiving device serve as the main power receiving coils, and the first coil 1 and the third coil 3 serve as offset compensation coils; since the polarities of adjacent transmitting columns are opposite, there is an area between the two transmitting columns where the direction of the magnetic field lines is approximately parallel to the direction of vehicle movement. When the second coil 2 moves to this area with the vehicle, the received magnetic flux is the smallest and the coupling is the lowest; at the same time, the fourth coil 4 is directly above the transmitting column, and the received magnetic flux is the largest and the coupling is the highest, which can achieve compensation for the second coil 2 in a low coupling state. Since the first coil 1 and the third coil 3 are wound in opposite directions, the magnetic flux received at this time is the same, and no compensation is provided; when the relative position of the power receiving coil and the dynamic transmitting track is laterally offset, the second coil 2 and the fourth coil 4 begin to decrease in coupling due to being away from the track, and the first coil 1 or the third coil 3 is offset to a position directly opposite to the transmitting column, and the coupling increases, which can compensate for the reduced coupling of the second coil 2 and the fourth coil 4. Therefore, the cross-shaped structure can not only reduce the coupling fluctuation of the system in the direction of movement, but also improve its dynamic anti-lateral offset performance, greatly improving the anti-offset performance. The longitudinal receiving ends in this embodiment are cross-arranged to reduce the coupling fluctuation of the power receiving device in dynamic scenarios, and the lateral compensation mechanism improves the stability of the system and enhances the anti-offset performance in dynamic scenarios.

[0066] Figure 8The schematic diagram shows another circuit principle diagram of a magnetic coupling system according to an embodiment of the present application. Figure 8 As shown, the circuit of the dynamic transmitting track includes a power supply, an inverter circuit and a compensation circuit, and the output of the compensation circuit is used to provide electric energy to different sections of the transmitting track. The electric energy passes through the inverter circuit and then is coupled to the front section transmitting track and the rear section transmitting track respectively through different compensation circuits. The rectifier circuit is a bridge rectifier circuit, the inverter circuit is a bridge inverter circuit, and the compensation circuit includes a compensation capacitor and a compensation resistor.

[0067] Fig. 9 Schematically shows a coupling distribution diagram of another magnetic coupling system according to an embodiment of the present application. Fig. 9 As shown, the red area is an ellipse with the driving direction as the major axis (the direction of travel), and the red area is relatively large, showing a strong anti-drift performance.

[0068] In an embodiment of the present application, an electronic device is also provided, the electronic device including the aforementioned power receiving device. With the popularization of wireless charging scenarios, more and more devices can be powered wirelessly. When a wireless power receiving device includes or adopts the aforementioned power receiving device, it can exhibit stable and efficient power receiving performance in both static power receiving and dynamic power receiving.

[0069] In some optional embodiments, the electronic device is an electric vehicle, which includes the aforementioned power receiving device, and the aforementioned static transmitting device is arranged in the vehicle stop area. When the vehicle stops in the area of ​​the static transmitting device, the magnetic coupling system in the present application is formed, which has good anti-drift performance and can receive the transmitted energy to the maximum extent, thereby saving energy.

[0070] In the scenario of vehicle driving, the aforementioned dynamic launch track is arranged in the direction of vehicle travel, so that when the vehicle drives within the launch area of ​​the dynamic launch track, another magnetic coupling system in the present application is formed, which also has good anti-offset performance and can receive the transmission energy to the greatest extent, thereby saving energy.

[0071] In the above embodiments of the present application, when the power receiving coil is used in a magnetic coupling system, it has better anti-deviation and power receiving efficiency. However, in other occasions, the power receiving coil, the static transmitting device and the dynamic transmitting track can be set separately and belong to different implementation entities, and the effect of their combined use is better.

[0072] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0073] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included within the scope of the claims of the present application.

Claims

1. An electric energy receiving device, characterized in that: include: A first coil group and a second coil group having an overlapping area and not overlapping; The coils in the first coil group are independently arranged on a first plane; Adjacent coils in the second coil group are wound in opposite directions on a second plane and are connected.

2. The electric energy receiving device according to claim 1, characterized in that: The arrangement direction of the coils in the first coil group is orthogonal to the arrangement direction of the coils in the second coil group.

3. The electric energy receiving device according to claim 1, characterized in that: The number of coils in the first coil group is the same as the number of coils in the second coil group.

4. The electric energy receiving device according to claim 1, characterized in that: The first coil group includes a second coil and a fourth coil, and the second coil and the fourth coil are arranged along the symmetry axis.

5. The electric energy receiving device according to claim 4, characterized in that: The second coil group includes a first coil and a third coil, and the arrangement direction of the first coil and the third coil is orthogonal to the arrangement direction of the coils in the first coil group.

6. The electric energy receiving device according to claim 5, characterized in that: The second coil and the fourth coil have the same area, and / or The first coil and the third coil have the same area.

7. The electric energy receiving device according to claim 5, characterized in that: The half area regions where the second coil and the fourth coil are close to each other and the half area regions where the first coil and the third coil are close to each other are the overlapping regions.

8. The electric energy receiving device according to claim 1, characterized in that: The electric energy receiving device also includes a first iron core; The axial direction of the first iron core is the same as the arrangement direction of the coils in the first coil group or the second coil group.

9. A static launching device, characterized in that: include: A group of transmitting coils wound in opposite directions and connected on the same plane.

10. The static launching device according to claim 9, characterized in that: The transmitting coil group includes a fifth coil and a sixth coil which are wound in opposite directions and connected on the same plane.

11. The static launching device according to claim 9, characterized in that: Also includes: A second iron core, wherein the axial direction of the second iron core is the same as the arrangement direction of the coils in the transmitting coil group.

12. A magnetic coupling system, characterized in that: The system comprises: a static transmitting device as described in any one of claims 9 to 11 and an electric energy receiving device as described in any one of claims 1 to 8; The transmitting coil group in the static transmitting device may be directly opposite to the second coil group in the power receiving device.

13. The magnetic coupling system according to claim 12, characterized in that: The coils in the transmitting coil group in the static transmitting device have the same area as the coils in the second coil group.

14. The magnetic coupling system according to claim 12, characterized in that: The coils in the first coil group and the coils in the second coil group of the power receiving device can be connected to the power load through corresponding compensation circuits and rectification circuits; The electric energy in the static transmitting device can be coupled to the transmitting coil group through the corresponding inverter circuit and compensation circuit.

15. A dynamic launch track, characterized in that: include: A plurality of top plates, wherein both sides below any of the top plates are provided with emission column assemblies for supporting the top plates; A base plate, through which adjacent emission column assemblies are connected front and back; A first cable and a second cable are provided, wherein the first cable and the second cable cross and pass around the emission column assembly from opposite directions, so that the polarities of adjacent emission column assemblies are opposite.

16. The dynamic launch track according to claim 15, characterized in that: Each emitting column assembly includes a first emitting column and a second emitting column, the top ends of the first emitting column and the second emitting column support two sides of a top plate, the bottom end of the first emitting column is connected to the previous substrate among the adjacent substrates, and the bottom end of the second emitting column is connected to the next substrate among the adjacent substrates.

17. A magnetic coupling system, characterized in that: The system comprises: a dynamic transmitting track as claimed in any one of claims 15 to 16 and an electric energy receiving device as claimed in any one of claims 1 to 8; The electric energy receiving device is located above the dynamic transmitting track so as to move along the dynamic transmitting track with the arrangement direction of the coils in the first coil group as the moving direction.

18. The magnetic coupling system according to claim 17, characterized in that: The coils in the first coil group and the coils in the second coil group of the power receiving device are both connected to the power load through corresponding compensation circuits and rectification circuits; The electric energy in the dynamic emission track is coupled to the emission track through the corresponding inverter circuit and compensation circuit.

19. A vehicle, characterized in that: The vehicle comprises the electric energy receiving device according to any one of claims 1 to 8.

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