A composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals

Abstract

The present invention relates to the technical field of simultaneous transmission of wireless power signals, and in particular to a composite magnetic coupling machine suitable for simultaneous transmission of four energy signals, comprising a transmitting end and a receiving end. The transmitting end comprises a primary first coil 11, a primary second coil 12, a primary third coil 13, and a primary fourth coil 14 stacked sequentially from bottom to top, and the receiving end comprises a secondary first coil 21, a secondary second coil 22, a secondary third coil 23, and a secondary fourth coil 24 stacked sequentially from top to bottom. The present invention builds a four-way transmission channel, and by designing the structure of each transceiver coil, the transmitting coils of the transmitting end are decoupled from each other, and the receiving coils of the receiving end are decoupled from each other, so that the transmissions between the four channels do not interfere with each other, thereby achieving that during the energy transmission process, after a signal transmission path fails, the information interaction system can continue to work, and after a power transmission path fails, charging can continue.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless power signal simultaneous transmission, and in particular to a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of power signals. Background Art

[0002] Highly integrated wireless devices require information interaction while transmitting power. For example, in the scheme "An Energy Signal Simultaneous Transmission Structure and Dynamic Wireless Energy Transmission System" shown in application number CN202011327325.2, different coils are used for energy transmission and signal transmission, respectively, and the energy coil and signal coil on each side are decoupled from each other, so that energy transmission and signal transmission do not affect each other. For example, in the scheme "Full-duplex WPT Energy Signal Parallel Transmission System Based on Bilateral LCC" shown in application number CN202010895860.1, energy and signal share a set of coils, and by adding a wave blocking network, energy transmission and signal transmission do not interfere with each other.

[0003] To ensure signal transmission is resilient to risks, wireless signal transmission often requires an emergency response function. This means that even if a signal transmission path fails, the information exchange system can continue to operate. To ensure energy transmission is resilient to risks, wireless energy transmission often requires an emergency response function. This means that even if a single energy transmission path fails, charging can still be continued. However, current technology can only achieve simultaneous transmission of energy and signals; it cannot achieve simultaneous transmission of both energy and signals in two paths, providing the necessary emergency response functions for both energy and information. Summary of the Invention

[0004] The present invention provides a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy and signals, and solves the technical problem of how to achieve two-way simultaneous transmission of energy and two-way simultaneous transmission of signals (four-way simultaneous transmission of energy and signals) to provide emergency guarantee functions for energy and information.

[0005] To solve the above technical problems, the present invention provides a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals, comprising a transmitting end and a receiving end; the transmitting end comprises a primary first coil, a primary second coil, a primary third coil, and a primary fourth coil stacked in any order; the receiving end comprises a secondary first coil, a secondary second coil, a secondary third coil, and a secondary fourth coil stacked in any order; the primary first coil and the secondary first coil form a first coupling channel, the primary second coil and the secondary second coil form a second coupling channel, the primary third coil and the secondary third coil form a third coupling channel, and the primary fourth coil and the secondary fourth coil form a fourth coupling channel;

[0006] The first primary coil, the first secondary coil, the second primary coil, and the second secondary coil are 8-shaped coils with the same specifications, and the 8-shaped coils are wound in an 8-shaped winding manner. The first primary coil and the first secondary coil are placed in the same position, and the second primary coil and the second secondary coil are placed in the same position. The first primary coil and the second primary coil are placed orthogonally to each other.

[0007] The primary third coil and the secondary third coil are rectangular coils that match the size of the figure-8 coil;

[0008] The fourth primary coil and the fourth secondary coil are double figure-8 coils with the same specifications. The double figure-8 coils are wound in an 88-shaped manner, and their size is adapted to the figure-8 coil.

[0009] Preferably, the first coupling channel, the second coupling channel, the third coupling channel, and the fourth coupling channel can all be used as energy transmission channels or signal transmission channels, when one, two, or three of them are used as signal transmission channels, the rest are used as energy transmission channels; the four transmission channels work simultaneously or at different times, and the lines do not interfere with each other.

[0010] Preferably, the double figure-8 coil is regarded as consisting of an upper left rectangular coil, an upper right rectangular coil, a lower left rectangular coil, and a lower right rectangular coil, and the winding steps of the double figure-8 coil include:

[0011] 1) Winding the left side, top side, and right side of the upper left rectangular coil in sequence;

[0012] 2) Winding the lower side, right side, upper side, and left side of the upper right rectangular coil in sequence;

[0013] 3) Winding the upper side, right side, lower side, and left side of the lower right rectangular coil in sequence;

[0014] 4) Wind the upper side, left side, lower side, right side, and upper side of the lower left rectangular coil in sequence.

[0015] Preferably, the figure-8 coil is regarded as consisting of a left rectangular coil and a right rectangular coil, and the steps of winding the figure-8 coil include:

[0016] 1) Winding the left side, top side, and right side of the left rectangular coil in sequence;

[0017] 2) Winding the bottom, right, top, and left sides of the right rectangular coil in sequence;

[0018] 3) Wind the lower side of the left rectangular coil.

[0019] Preferably, the first coupling channel serves as a first energy transmission channel, the second coupling channel serves as a second energy transmission channel, the third coupling channel serves as a first signal transmission channel, and the fourth coupling channel serves as a second signal transmission channel.

[0020] Preferably, the first coupling channel serves as an energy transmission channel, the second coupling channel serves as a first signal transmission channel, the third coupling channel serves as a second signal transmission channel, and the fourth coupling channel serves as a third signal transmission channel.

[0021] Preferably, the first coupling channel serves as a first energy transmission channel, the second coupling channel serves as a second energy transmission channel, the third coupling channel serves as a third energy transmission channel, and the fourth coupling channel serves as a signal transmission channel.

[0022] Preferably, the first primary coil, the second primary coil, the third primary coil and the fourth primary coil are stacked sequentially from bottom to top, and the first secondary coil, the second secondary coil, the third secondary coil and the fourth secondary coil are stacked sequentially from top to bottom.

[0023] Preferably, the first primary coil, the second primary coil, the third primary coil and the fourth primary coil are stacked sequentially from top to bottom, and the first secondary coil, the second secondary coil, the third secondary coil and the fourth secondary coil are stacked sequentially from bottom to top.

[0024] The present invention provides a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals. It establishes four transmission channels and, by designing the structures of the transmitting and receiving coils of each channel, decouples the transmitting coils at the transmitting end from each other, and decouples the receiving coils at the receiving end from each other, so that the transmissions between the four channels do not interfere with each other. This ensures that during the energy transmission process, even if one signal transmission channel fails, the information exchange system can continue to operate, and even if one energy transmission channel fails, charging can continue. The present invention:

[0025] 1) Embedding four magnetic coupling coils into one tool saves the installation area of ​​wireless power transmission equipment;

[0026] 2) A wireless signal transmission redundancy function has been added to the coupling mechanism. If one signal transmission path fails, the other path can still operate normally, ensuring uninterrupted information exchange.

[0027] 3) Energy transmission redundancy has been added to the coupling mechanism. If one energy transmission path fails, the other path can still operate normally, ensuring uninterrupted charging.

[0028] 4) Wireless energy and wireless signals are transmitted simultaneously without interfering with each other;

[0029] 5) 4 channels can work simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the stacking relationship of a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals provided in Example 1 of the present invention;

[0031] Figure 2 This is a diagram showing the placement of the first coil on the primary side and the first coil on the secondary side provided in an embodiment of the present invention;

[0032] Figure 3 This is a diagram showing the placement of the primary second coil and the secondary second coil provided in an embodiment of the present invention;

[0033] Figure 4 This is a diagram showing the placement of the primary third coil and the secondary third coil provided in an embodiment of the present invention;

[0034] Figure 5 This is a diagram showing the placement of the fourth coil on the primary side and the fourth coil on the secondary side provided in an embodiment of the present invention;

[0035] Figure 6 This is a diagram of magnetic field interference between the first transmitting coil and the second transmitting coil provided by an embodiment of the present invention;

[0036] Figure 7 This is a diagram of magnetic field interference between the first transmitting coil and the third transmitting coil provided by an embodiment of the present invention;

[0037] Figure 8 This is a diagram of magnetic field interference between the first transmitting coil and the fourth transmitting coil provided by an embodiment of the present invention;

[0038] Figure 9 This is a diagram of the magnetic field interference of the third transmitting coil on the first transmitting coil provided by an embodiment of the present invention;

[0039] Figure 10 This is a diagram of the magnetic field interference of the third transmitting coil on the second transmitting coil provided by an embodiment of the present invention;

[0040] Figure 11 This is a diagram of magnetic field interference between the third transmitting coil and the fourth transmitting coil provided by an embodiment of the present invention;

[0041] Figure 12 This is a diagram of magnetic field interference caused by the fourth transmitting coil on the first transmitting coil provided by an embodiment of the present invention;

[0042] Figure 13This is a diagram of the magnetic field interference caused by the fourth transmitting coil on the third transmitting coil provided by an embodiment of the present invention.

[0043] Reference numerals: primary first coil 11 , primary second coil 12 , primary third coil 13 , primary fourth coil 14 , secondary first coil 21 , secondary second coil 22 , secondary third coil 23 , secondary fourth coil 24 . DETAILED DESCRIPTION

[0044] The following describes the embodiments of the present invention in detail with reference to the accompanying drawings. The embodiments are provided for illustrative purposes only and are not to be construed as limiting the present invention. The accompanying drawings are provided for reference and illustration only and do not constitute a limitation on the scope of protection of the present invention. Many changes may be made to the present invention without departing from the spirit and scope of the present invention.

[0045] Example 1

[0046] The embodiment of the present invention provides a composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals, including a transmitting end and a receiving end. Figure 1 As shown, the transmitting end includes a primary first coil 11, a primary second coil 12, a primary third coil 13, and a primary fourth coil 14 stacked sequentially from bottom to top, and the receiving end includes a secondary first coil 21, a secondary second coil 22, a secondary third coil 23, and a secondary fourth coil 24 stacked sequentially from top to bottom. The primary first coil 11 and the secondary first coil 21 form a first coupling channel, the primary second coil 12 and the secondary second coil 22 form a second coupling channel, the primary third coil 13 and the secondary third coil 23 form a third coupling channel, and the primary fourth coil 14 and the secondary fourth coil 24 form a fourth coupling channel.

[0047] The first primary coil 11, the first secondary coil 21, the second primary coil 12, and the second secondary coil 22 use 8-shaped coils of the same specifications, and the 8-shaped coils are wound using an 8-shaped winding method. The first primary coil 11 and the first secondary coil 21 are placed in the same position, and the second primary coil 12 and the second secondary coil 22 are placed in the same position. The first primary coil 11 and the second primary coil 12 are placed orthogonally to each other. Figure 2 The figure shows the placement of the first coil 11 of the primary side and the first coil 21 of the secondary side. Figure 3 The figure shows the placement of the second primary coil 12 and the second secondary coil 22. It can be seen that the placement of the two is orthogonal to each other (crossed 90 degrees). This is to achieve decoupling. The following describes in detail how the decoupling is achieved.

[0048] by Figure 2The placement shown here illustrates the steps for winding the figure-8 coil. Figure 2 As indicated by the arrow, the figure-8 coil is considered to be composed of a left rectangular coil and a right rectangular coil. The winding steps of the figure-8 coil include:

[0049] 1) Wind the left, top, and right sides of the left rectangular coil in sequence;

[0050] 2) Wind the bottom, right, top, and left sides of the right rectangular coil in sequence;

[0051] 3) Wind the bottom side of the left rectangular coil.

[0052] like Figure 4 As shown, the primary third coil 13 and the secondary third coil 23 are rectangular coils that match the size of the figure-eight coil.

[0053] like Figure 5 As shown, the primary fourth coil 14 and the secondary fourth coil 24 are double figure-8 coils of the same specifications. The double figure-8 coils are wound in an 88-shaped manner, and their size is adapted to the figure-8 coils.

[0054] refer to Figure 5 As indicated by the arrow, the double figure-8 coil is considered to consist of an upper left rectangular coil, an upper right rectangular coil, a lower left rectangular coil, and a lower right rectangular coil. The winding steps of the double figure-8 coil include:

[0055] 1) Wind the left, top, and right sides of the upper left rectangular coil in sequence;

[0056] 2) Wind the bottom, right, top, and left sides of the upper right rectangular coil in sequence;

[0057] 3) Wind the upper, right, lower, and left sides of the lower right rectangular coil in sequence;

[0058] 4) Wind the upper side, left side, lower side, right side, and upper side of the lower left rectangular coil in sequence.

[0059] In specific applications, the first coupling channel serves as the first energy transmission channel, the second coupling channel serves as the second energy transmission channel, the third coupling channel serves as the first signal transmission channel, and the fourth coupling channel serves as the second signal transmission channel. If one signal transmission channel fails, the other can operate normally, ensuring uninterrupted information exchange. If one energy transmission channel fails, the other can operate normally, ensuring uninterrupted charging.

[0060] It should also be noted that in this example, two of the four channels are used for energy transmission, and the other two for information transmission. In other implementations, three channels can be used for energy transmission and one for information transmission, or three channels can be used for information transmission and one for energy transmission, depending on specific needs. During information transmission, the signal coil at the transmitting end can serve as either a signal transmitting coil or a signal receiving coil, depending on the specific application requirements. The following example uses the four coils at the transmitting end as both energy and signal transmitting coils, and the four coils at the receiving end as both energy and signal receiving coils.

[0061] The transmission between the channels does not interfere with each other. The implementation principle is analyzed below.

[0062] Apply an alternating current I to the transmitter P When the total magnetic field strength is not zero, an alternating magnetic field is generated. According to Lenz's law, when the total magnetic field strength is not zero, the closed coil (receiving coil) will generate an induced electromotive force U. From formula (1), when the resonant angular frequency ω, the transmitting end current I P Under fixed conditions, the induced electromotive force is proportional to the mutual inductance M, which is determined by the characteristics of the two energy coils. When the relative angle between the two energy coils is fixed and the center distance remains unchanged, the mutual inductance M value remains unchanged, that is, the induced electromotive force remains unchanged, and stable energy can be picked up at any angle.

[0063] U=jωMI p (1)

[0064] First, analyze the alternating current I applied to the first transmitting coil. P1 , the remaining 7 coils will be affected by the first transmitting coil. Since the winding method of each transmitting coil is the same as that of the receiving coil, we only analyze the influence between the transmitting coils and can make analogies. Figure 6 As shown, the first transmitting coil and the second transmitting coil are overlapped at 90 degrees, and both the first transmitting coil and the second transmitting coil are wound in the shape of a figure 8. Taking the first transmitting coil as an example, an alternating current I is applied to the first transmitting coil. P1 When the first transmitting coil is applied, the left and right sides generate an alternating magnetic field of uniform intensity and opposite direction. Influenced by the magnetic field of the first transmitting coil, the upper half of the second transmitting coil receives a magnetic field of uniform intensity but in a different direction. Overall, the magnetic field strength within the upper half of the second transmitting coil is zero. Similarly, the alternating magnetic field strength of the first transmitting coil within the lower half of the second transmitting coil is zero, and the sum of the two is still zero, indicating that the mutual inductance M is zero and the induced electromotive force is zero, indicating that the interference of the first transmitting coil on the second transmitting coil is zero. Similarly, the analysis at the receiving end shows that the interference of the first transmitting coil on the second receiving coil is also zero.

[0065] In summary, the first transmitting coil does not interfere with the second coil (the transmitting coil and the receiving coil).

[0066] Similarly, the first transmitting coil applies an alternating current I P1 When the third transmitting coil is disturbed by the magnetic field, Figure 7 As shown in the figure, the range of the third transmitting coil is interfered by the magnetic field generated by the first transmitting coil, which has the same strength and opposite direction on the left and right sides. The comprehensive magnetic field strength is 0, which is manifested as the mutual inductance M is 0 and the induced electromotive force U is 0. Similarly, the analysis at the receiving end is similar, and the interference of the first transmitting coil on the third receiving coil is also 0.

[0067] In summary, the first transmitting coil does not interfere with the third coil (the transmitting coil and the receiving coil).

[0068] like Figure 8 As shown, a current I is applied to the first transmitting coil. p1 The left part of the back generates a magnetic field in the downward direction, and the right part generates a magnetic field in the upward direction. The magnetic field strength of the two parts is the same. Under the influence of the magnetic field of the figure 8 coil, the double 8-shaped coil induces a corresponding current I p1-1 , I p1-2 , I p1-3 , I p1-4 , and the currents are equal. According to Lenz's law, the upper left part of the double 8-shaped coil generates an upward magnetic field, the upper right part generates a downward magnetic field, the lower left part generates an upward magnetic field, and the lower right part generates a downward magnetic field. Due to the special winding method of the double 8-shaped coil, I p1-1 with I p1-4 Reverse, I p1-2 with I p1-3 In reverse order, following the winding direction, it's easy to see that the sum of the induced currents in the double 8-shaped coils is zero, meaning the interference of the figure-8 coil on the double 8-shaped coil is zero (the induced voltage is zero). Similarly, the analysis on the receiving end shows a similar situation: the interference of the first transmitting coil on the fourth receiving coil is also zero.

[0069] In summary, the first transmitting coil does not interfere with the fourth coil (the transmitting coil and the receiving coil).

[0070] Since the winding method of the second coil is the same as that of the first coil, and the two are placed at 90 degrees, the analysis method is similar and will not be repeated here.

[0071] Similarly, after the second coil is loaded with current, there is no magnetic field interference to other coils.

[0072] like Figure 9 As shown, the third transmitting coil applies an alternating current I P3When the first transmitting coil is affected by the magnetic field of the second signal coil, according to Lenz's law, the left half of the first transmitting coil generates an upward magnetic field, that is, it generates a counterclockwise current I P3-1 Similarly, the right half of the first transmitting coil generates an upward magnetic field, that is, a counterclockwise current I P3-2 , the two induced currents are equal. Since the first transmitting coil is wound in the opposite direction, looking along the winding direction of the first transmitting coil, I P3-1 with I P3-2 The direction is opposite, that is, the total induced electromotive force is 0, so it can be considered that the interference voltage of the third transmitting coil on the first transmitting coil is 0. Similarly, the analysis at the receiving end is similar, and the interference of the third transmitting coil on the first receiving coil is also 0.

[0073] In summary, the third transmitting coil does not interfere with the first coil (the transmitting coil and the receiving coil).

[0074] like Figure 10 As shown, the third transmitting coil applies an alternating current I P3 When the second transmitting coil is affected by the magnetic field of the third transmitting coil, according to Lenz's law, the upper half of the second transmitting coil generates an upward magnetic field, that is, it generates a counterclockwise current I P3-3 Similarly, the lower half of the second transmitting coil generates an upward magnetic field, that is, a counterclockwise current I P3-4 , the two induced currents are equal. Since the second transmitting coil is wound in the opposite direction, looking along the winding direction of the second transmitting coil, I P3-3 with I P3-4 The direction is opposite, that is, the total induced electromotive force is 0, so it can be considered that the interference voltage of the third transmitting coil on the second transmitting coil is 0. Similarly, the analysis at the receiving end is similar, and the interference of the third transmitting coil on the second receiving coil is also 0.

[0075] In summary, the third transmitting coil does not interfere with the second coils (transmitting coil and receiving coil).

[0076] like Figure 11 As shown, a current I is applied to the third transmitting coil. p3 Affected by the magnetic field of the figure 8 coil, the double figure 8 coil induces a corresponding current I P3-5 , I P3-6 , I P3-7 , I P3-8 , and the currents are equal. According to Lenz's law, the four parts of the double 8-shaped coil all generate an upward magnetic field. Due to the special winding method of the double 8-shaped coil, I P3-5 with I P3-6Reverse, I P3-7 with I P3-8 In reverse. Tracing the winding direction reveals that the sum of the induced currents in the double 8-shaped coils is zero, meaning the interference of the figure-8 coil on the double 8-shaped coil is zero (the induced voltage is zero). Similarly, the analysis on the receiving end reveals that the interference of the third transmitting coil on the fourth receiving coil is also zero.

[0077] In summary, the third transmitting coil does not interfere with the fourth coil (the transmitting coil and the receiving coil).

[0078] Apply alternating current I to the fourth transmitting coil P4 When the first transmitting coil is disturbed by the magnetic field, Figure 12 As shown, the left half of the first transmitting coil is interfered with by the upper and lower magnetic fields generated by the fourth transmitting coil, both of equal strength and opposite direction. Overall, the magnetic field strength within the left half of the first transmitting coil is zero; similarly, the magnetic field strength within the right half of the first transmitting coil is zero. Based on the above analysis, the first transmitting coil is not interfered with by the magnetic field of the fourth transmitting coil, indicating that the two coils are decoupled. Similarly, the analysis on the receiving end shows that the interference of the fourth transmitting coil on the first receiving coil is also zero.

[0079] In summary, the fourth transmitting coil does not interfere with the first coil (the transmitting coil and the receiving coil).

[0080] The effect of applying current to the fourth transmitting coil on the second transmitting coil is similar to the effect of the fourth coil on the first coil. The two are decoupled from each other and will not be described in detail here.

[0081] Similar to the effect of the fourth coil on the first coil, the fourth transmitting coil applies an alternating current I P4 When the third transmitting coil is disturbed by the magnetic field, Figure 13 As shown, the third transmitting coil is subject to interference from the fourth transmitting coil, which generates a magnetic field of equal strength and opposite direction. Overall, the magnetic field strength experienced by the third transmitting coil is zero, indicating that the two coils are decoupled. Similarly, analysis at the receiving end reveals zero interference from the fourth transmitting coil on the third receiving coil.

[0082] In summary, the fourth transmitting coil does not interfere with the third coil (the transmitting coil and the receiving coil).

[0083] From the above analysis, we can see that in the four-way simultaneous transmission composite coupling mechanism proposed in this paper, when any one pair of coils is operating, it does not affect the other three pairs of coils; it can have the function of simultaneous energy and signal transmission; it has a redundant design for energy or signal transmission, that is, if one energy or signal transmission channel fails, the other energy or signal transmission channel can operate normally without being affected; and all four channels can operate simultaneously.

[0084] Example 2

[0085] The difference between this embodiment and embodiment 1 is that:

[0086] The first primary coil 11, the second primary coil 12, the third primary coil 13 and the fourth primary coil 14 are stacked sequentially from top to bottom, and the first secondary coil 21, the second secondary coil 22, the third secondary coil 23 and the fourth secondary coil 24 are stacked sequentially from bottom to top.

[0087] In this embodiment, similar to the first embodiment, two channels are used for energy transmission, and the remaining two channels are used for information transmission, and the channels do not interfere with each other.

[0088] Regarding the superposition of the transmitter or receiver, the total There are several stacking methods, of which Examples 1 and 2 only illustrate two. Other stacking methods can be obtained through permutations and combinations, and are not described in detail in this disclosure. The above examples only illustrate the case where the coils at the transmitter and receiver are stacked symmetrically. However, the order of stacking the coils at the transmitter and receiver can be set arbitrarily.

[0089] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

Claims

1. A composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals, characterized in that: The invention comprises a transmitting end and a receiving end; the transmitting end comprises a primary first coil (11), a primary second coil (12), a primary third coil (13) and a primary fourth coil (14) stacked in any order; the receiving end comprises a secondary first coil (21), a secondary second coil (22), a secondary third coil (23) and a secondary fourth coil (24) stacked in any order; the primary first coil (11) and the secondary first coil (21) form a first coupling channel; the primary second coil (12) and the secondary second coil (22) form a second coupling channel; the primary third coil (13) and the secondary third coil (23) form a third coupling channel; and the primary fourth coil (14) and the secondary fourth coil (24) form a fourth coupling channel. The primary first coil (11), the secondary first coil (21), the primary second coil (12), and the secondary second coil (22) are 8-shaped coils with the same specifications, and the 8-shaped coils are wound in an 8-shaped winding manner. The primary first coil (11) and the secondary first coil (21) are placed in the same position, and the primary second coil (12) and the secondary second coil (22) are placed in the same position. The primary first coil (11) and the primary second coil (12) are placed in orthogonal positions to each other. The primary third coil (13) and the secondary third coil (23) are rectangular coils that match the size of the figure-eight coil; The primary fourth coil (14) and the secondary fourth coil (24) are double figure-8 coils of the same specifications. The double figure-8 coils are wound in an 88-shaped winding manner, and their sizes are adapted to the figure-8 coils.

2. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 1, characterized in that: The first coupling channel, the second coupling channel, the third coupling channel, and the fourth coupling channel can all be used as energy transmission channels or signal transmission channels. When one, two, or three of them are used as signal transmission channels, the others are used as energy transmission channels; the four transmission channels work simultaneously or at different times, and the lines do not interfere with each other.

3. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 2, characterized in that: Considering the double figure-8 coil as consisting of an upper left rectangular coil, an upper right rectangular coil, a lower left rectangular coil, and a lower right rectangular coil, the winding steps of the double figure-8 coil include: 1) Winding the left side, top side, and right side of the upper left rectangular coil in sequence; 2) Winding the lower side, right side, upper side, and left side of the upper right rectangular coil in sequence; 3) Winding the upper side, right side, lower side, and left side of the lower right rectangular coil in sequence; 4) Wind the upper side, left side, lower side, right side, and upper side of the lower left rectangular coil in sequence.

4. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 3, characterized in that: Considering the figure-8 coil to be composed of a left rectangular coil and a right rectangular coil, the steps of winding the figure-8 coil include: 1) Winding the left side, top side, and right side of the left rectangular coil in sequence; 2) Winding the bottom, right, top, and left sides of the right rectangular coil in sequence; 3) Wind the lower side of the left rectangular coil.

5. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 1, characterized in that: The first coupling channel serves as a first energy transmission channel, the second coupling channel serves as a second energy transmission channel, the third coupling channel serves as a first signal transmission channel, and the fourth coupling channel serves as a second signal transmission channel.

6. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 1, characterized in that: The first coupling channel serves as an energy transmission channel, the second coupling channel serves as a first signal transmission channel, the third coupling channel serves as a second signal transmission channel, and the fourth coupling channel serves as a third signal transmission channel.

7. The composite magnetic coupling mechanism for four-way simultaneous transmission of energy signals according to claim 1, characterized in that: The first coupling channel serves as a first energy transmission channel, the second coupling channel serves as a second energy transmission channel, the third coupling channel serves as a third energy transmission channel, and the fourth coupling channel serves as a signal transmission channel.

8. A composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals according to any one of claims 1 to 7, characterized in that: The first primary coil (11), the second primary coil (12), the third primary coil (13) and the fourth primary coil (14) are stacked sequentially from bottom to top, and the first secondary coil (21), the second secondary coil (22), the third secondary coil (23) and the fourth secondary coil (24) are stacked sequentially from top to bottom.

9. A composite magnetic coupling mechanism suitable for four-way simultaneous transmission of energy signals according to any one of claims 1 to 7, characterized in that: The first primary coil (11), the second primary coil (12), the third primary coil (13) and the fourth primary coil (14) are stacked sequentially from top to bottom, and the first secondary coil (21), the second secondary coil (22), the third secondary coil (23) and the fourth secondary coil (24) are stacked sequentially from bottom to top.

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