Wireless slip ring device in duplex mode

Abstract

The invention provides a wireless slip ring device in a duplex mode. The corresponding end faces of a first slip ring assembly and a second slip ring assembly are each provided with at least one transmitting module and at least one receiving module. The at least one transmitting module is arranged on the first slip ring assembly in the circumferential direction A1, the at least one receiving module is arranged on the first slip ring assembly in the circumferential direction B1, and the circumferential direction A1 and the circumferential direction B1 are not intersected and are in a nested relationship; the at least one receiving module is arranged on the second slip ring assembly in the circumferential direction A2, the at least one transmitting module is arranged on the second slip ring assembly in the circumferential direction B2, and the circumferential direction A2 and the circumferential direction B2 are not intersected and are in a nested relationship; the circumferential direction A1 corresponds to the circumferential direction A2 in the rotation axis direction; the circumferential direction B1 corresponds to the circumferential direction B2 in the rotation axis direction. According to the invention, high-speed, high-stability and low-cost bidirectional data communication transmission and wireless power transmission can be realized.

Description

Technical Field

[0001] This invention relates to the field of slip ring technology, and more specifically to a wireless slip ring device in duplex mode. Background Technology

[0002] In the operation of precision equipment such as robot joints, gimbals, surveillance cameras, and die bonders, stable power supply and high-speed data transmission between rotating components are core requirements. While current mainstream contact slip ring solutions are widely used, they suffer from the following significant drawbacks:

[0003] 1. Lifespan bottleneck: It relies on the physical contact between the gold-plated metal brush and the metal ring to transmit electrical energy and data signals. Long-term rotational friction will cause the plating to wear down gradually, deteriorate the contact performance, and affect the reliability of transmission.

[0004] 2. Unstable impedance: The contact resistance changes dynamically with wear, making it difficult to maintain a constant impedance, which restricts the realization of high-speed signal transmission;

[0005] 3. Structural and cost disadvantages: It is bulky and complex in structure, and the manufacturing cost is high due to precision components (such as precious metal plating).

[0006] The aforementioned pain points of existing contact slip ring devices have driven the industry's demand for the application of non-contact transmission technology in slip ring devices. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a duplex wireless slip ring device that can realize high-speed, high-stability, low-cost bidirectional data communication transmission and wireless power transmission.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0009] A full-duplex wireless slip ring device includes a first slip ring assembly, a second slip ring assembly, and a wireless full-duplex communication assembly; the wireless full-duplex communication assembly includes at least two transmitting modules and at least two receiving modules; the first slip ring assembly and the second slip ring assembly are arranged end-to-end along the rotation axis, and the corresponding end faces of the two are spaced apart by a preset distance.

[0010] Both the first slip ring assembly and the second slip ring assembly have at least one transmitting module and at least one receiving module on their corresponding end faces. The at least one transmitting module is arranged along the circumferential direction A1 on the corresponding end face of the first slip ring assembly, and the at least one receiving module is arranged along the circumferential direction B1 on the corresponding end face of the first slip ring assembly. The circumferential directions A1 and B1 do not intersect and are nested. The at least one receiving module is arranged along the circumferential direction A2 on the corresponding end face of the second slip ring assembly, and the at least one transmitting module is arranged along the circumferential direction B2 on the corresponding end face of the second slip ring assembly. The circumferential directions A2 and B2 do not intersect and are nested. The circumferential directions A1 and A2 correspond to each other in the direction of the rotation axis. The circumferential directions B1 and B2 correspond to each other in the direction of the rotation axis.

[0011] Optionally, the signal radiation ranges of two adjacent transmitting modules and two adjacent receiving modules on the first slip ring assembly overlap; or, the signal radiation ranges of two adjacent transmitting modules and two adjacent receiving modules on the second slip ring assembly overlap.

[0012] Optionally, two or more transmitting modules are evenly arranged on the circumferential A1, and two or more receiving modules are evenly arranged on the circumferential A2;

[0013] And / or, two or more transmitting modules are evenly arranged on the circumferential B2, and two or more receiving modules are evenly arranged on the circumferential B1.

[0014] Optionally, when there is only one transmitting module on the circumferential A1, two or more receiving modules are evenly arranged on the circumferential A2;

[0015] When there is only one receiving module on the circumferential A2, there are two or more transmitting modules evenly arranged on the circumferential A1;

[0016] When there is only one receiving module on the circumferential B1, there are two or more transmitting modules evenly arranged on the circumferential B2;

[0017] When there is only one transmitting module on the circumferential B2, there are two or more receiving modules evenly arranged on the circumferential B1.

[0018] Optionally, both the first slip ring assembly and the second slip ring assembly are not hollow structures;

[0019] When the first slip ring assembly is located inside the nested relationship, the circumferential A1 is provided with only one transmitting module, and the transmitting module is set close to the rotation axis; correspondingly, the circumferential A2 is also provided with only one receiving module, and the receiving module is set close to the rotation axis.

[0020] When the first slip ring assembly is located inside the nested relationship, the circumferential B1 has only one receiving module, and the receiving module is set close to the rotation axis; correspondingly, the circumferential B2 also has only one transmitting module, and the transmitting module is set close to the rotation axis.

[0021] Optionally, it also includes a first annular absorbing shield wall;

[0022] A first absorbing shielding wall is provided between the circumferential A1 and the circumferential B1 on the first slip ring assembly; the first absorbing shielding wall, the circumferential A1 and the circumferential B1 are nested, and the first absorbing shielding wall does not touch the second slip ring assembly;

[0023] Alternatively, the first absorbing shielding wall is provided between the circumferential A2 and the circumferential B2 on the second slip ring assembly; the first absorbing shielding wall, the circumferential A2 and the circumferential B2 are nested, and the first absorbing shielding wall does not touch the first slip ring assembly.

[0024] Optionally, it also includes a first annular absorbing shield wall;

[0025] A first absorbing shielding wall is disposed between circumferential A1 and circumferential B1 on the first slip ring assembly; the first absorbing shielding wall, circumferential A1, and circumferential B1 are nested together; a first absorbing shielding wall is disposed between circumferential A2 and circumferential B2 on the second slip ring assembly; the first absorbing shielding wall, circumferential A2, and circumferential B2 are nested together.

[0026] The first absorbing shielding wall on the first slip ring assembly is correspondingly arranged with the first absorbing shielding wall on the second slip ring assembly, and the two are spaced apart by a preset distance; or the first absorbing shielding wall on the first slip ring assembly and the first absorbing shielding wall on the second slip ring assembly are nested, and the first absorbing shielding wall on the first slip ring assembly does not touch the second slip ring assembly, and the first absorbing shielding wall on the second slip ring assembly does not touch the first slip ring assembly.

[0027] Optionally, it also includes a second annular absorbing shield wall;

[0028] On the corresponding end face of the first slip ring assembly or the second slip ring assembly, a second absorbing shielding wall is provided, which encloses all receiving modules and all transmitting modules thereon; or

[0029] On the corresponding end faces of the first slip ring assembly and the second slip ring assembly, a second absorbing shielding wall is respectively provided, which encloses all receiving modules and all transmitting modules on it, and the two are correspondingly arranged at a preset distance; or

[0030] On the corresponding end faces of the first slip ring assembly and the second slip ring assembly, a second absorbing shielding wall is respectively provided, which includes all receiving modules and all transmitting modules on it, and the two are nested. The second absorbing shielding wall on the first slip ring assembly does not touch the second slip ring assembly, and the second absorbing shielding wall on the second slip ring assembly does not touch the first slip ring assembly.

[0031] Optionally, it also includes a wireless power supply component; the wireless power supply component includes a transmitter coil and a receiver coil;

[0032] On the corresponding end face of the first slip ring assembly, the transmitting coil is provided near its outer edge contour; the transmitting coil nests the circumferential A1 and the circumferential B1 within it;

[0033] On the corresponding end face of the second slip ring assembly, the receiving coil is provided near its outer edge contour; the receiving coil nests the circumferential A2 and the circumferential B2 within it.

[0034] Optionally, it also includes a wireless power supply component; the wireless power supply component includes a transmitter coil and a receiver coil;

[0035] On the corresponding end face of the first slip ring assembly, the transmitting coil is provided between the circumferential A1 and the circumferential B1; the transmitting coil, the circumferential A1, and the circumferential B1 are nested in a nested relationship;

[0036] On the corresponding end face of the second slip ring assembly, the receiving coil is provided between the circumferential A2 and the circumferential B2; the receiving coil, the circumferential A2 and the circumferential B2 are nested together.

[0037] The beneficial effects of this invention are as follows: The full-duplex wireless slip ring device provided by this invention enables high-speed, high-stability, and continuous bidirectional wireless data / power transmission between the first slip ring assembly and the second slip ring assembly; it significantly improves the lifespan of the slip ring, while also possessing stronger robustness and reducing maintenance costs. Specifically, this invention places the wireless full-duplex communication component on the end face of the slip ring assembly and adopts a multi-ring arrangement design. This design allows for easy and flexible implementation of various configuration schemes such as multi-T single-R, single-T multi-R, and multi-T multi-R on the end face of a single slip ring assembly with only a simple structure. Therefore, the wireless slip ring device of this invention does not rely on complex mechanical structures and also possesses the dual advantages of simple structure and low cost. Attached Figure Description

[0038] Figure 1 A schematic diagram of an exemplary structure of a duplex mode wireless slip ring device provided in an embodiment of the present invention;

[0039] Figure 2a -b are schematic diagrams of two exemplary overall layout designs of the radio frequency module on the first slip ring assembly and the second slip ring assembly in the embodiments of the present invention;

[0040] Figure 3a This is a schematic diagram illustrating the construction of the first wireless communication link using a multi-TX, multi-RX configuration scheme in a specific embodiment of the present invention;

[0041] Figure 3b This is a schematic diagram illustrating the construction of the first wireless communication link using a 1TX multi-RX configuration scheme in a specific embodiment of the present invention;

[0042] Figure 3c This is a schematic diagram illustrating the construction of the first wireless communication link using a multi-TX 1RX configuration scheme in a specific embodiment of the present invention;

[0043] Figure 3d This is a schematic diagram illustrating the construction of a second wireless communication link using a multi-TX, multi-RX configuration scheme in a specific embodiment of the present invention;

[0044] Figure 3e This is a schematic diagram illustrating the construction of a second wireless communication link using a 1TX multi-RX configuration scheme in a specific embodiment of the present invention;

[0045] Figure 3f This is a schematic diagram illustrating the construction of a second wireless communication link using a multi-TX 1RX configuration scheme in a specific embodiment of the present invention;

[0046] Figure 4a This is a schematic diagram illustrating the construction of a first wireless communication link located in the inner ring using a 1TX1RX configuration scheme for a non-hollow slip ring component in a specific embodiment of the present invention.

[0047] Figure 4b This is a schematic diagram illustrating the construction of a second wireless communication link located in the inner ring using a 1TX1RX configuration scheme for a non-hollow slip ring component in a specific embodiment of the present invention.

[0048] Figure 5a -d are schematic diagrams of four layout schemes of the first wave-absorbing shielding wall in specific embodiments of the present invention;

[0049] Figure 6a -d are schematic diagrams of four layout schemes of the second wave-absorbing shielding wall in specific embodiments of the present invention;

[0050] Figure 7a-c are cross-sectional views of three exemplary structures with wave-absorbing shielding schemes in specific embodiments of the present invention;

[0051] Figure 8a -b are schematic diagrams of two configuration schemes of the wireless power supply component in specific embodiments of the present invention;

[0052] Figure 9 To adopt Figure 8a An exemplary structural diagram of a wireless slip ring device with a configuration scheme.

[0053] Label Explanation:

[0054] 1. First slip ring assembly; 2. Second slip ring assembly; 3. Wireless full-duplex communication assembly; 4. Wireless power supply assembly; 5. First absorbing shielding wall; 6. Second absorbing shielding wall; 41. Transmitter coil; 42. Receiver coil. Detailed Implementation

[0055] To explain in detail the technical principles, specific implementable solutions, possible application scenarios, and achievable objectives and effects of the present invention, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. It is understood that the embodiments described herein and the embodiments shown in the accompanying drawings are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only examples intended to explain the present invention, and should not be construed as limiting the present invention. It should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0056] This invention places the wireless duplex communication component on the end face of the slip ring component. Through a multi-ring arrangement design, it can easily support a variety of TR configuration schemes with a simple structure on the end face of a single slip ring component, and realize high-speed, high-stability, and low-cost wireless bidirectional data / power transmission between the first slip ring component and the second slip ring component.

[0057] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0058] Please see Figure 1 , Figure 1 This is an exemplary structural diagram of a duplex mode wireless slip ring device provided in an embodiment of the present invention.

[0059] The wireless slip ring device in duplex mode provided in this embodiment of the invention can be in full-duplex mode or half-duplex mode. For example... Figure 1As shown, it includes a first slip ring assembly 1, a second slip ring assembly 2, and a wireless full-duplex communication assembly 3; the wireless full-duplex communication assembly 3 includes at least two transmitting modules TX and at least two receiving modules RX; the first slip ring assembly 1 and the second slip ring assembly 2 are arranged end to end along the rotation axis, and the corresponding end faces of the two are spaced apart by a preset distance.

[0060] The first slip ring assembly 1 and the second slip ring assembly 2 are coaxially and correspondingly arranged, one being a fixed component and the other a rotating component, without specific limitations. During operation, either the first slip ring assembly or the second slip ring assembly (which is designated as the rotating component)... Figure 1 The first slip ring assembly (which is a rotating component) will rotate along the rotation axis, which is the common axis of both components; the corresponding second slip ring assembly remains stationary. For ease of description and understanding, the corresponding end faces of the first and second slip ring assemblies, which are set end-to-end, will be referred to as "corresponding end faces" in the following text. It can be understood that there is a preset distance between the corresponding end faces of the first and second slip ring assemblies. Preferably, to ensure the stability of wireless communication / energy transmission between the two slip ring assemblies, the distance between the corresponding end faces of the fixed slip ring assembly and the rotating slip ring assembly is within 15mm.

[0061] In this embodiment, at least one transmitting module TX and at least one receiving module RX are provided on the corresponding end face of the first slip ring assembly; correspondingly, at least one transmitting module TX and at least one receiving module RX are also provided on the corresponding end face of the second slip ring assembly.

[0062] Specifically, such as Figure 2a As shown in Figure -b (where T is used to represent the transmitting module TX and R to represent the receiving module RX), on the corresponding end face of the first slip ring assembly 1, at least one transmitting module TX is arranged along the circumferential direction A1, and at least one receiving module RX is arranged along the circumferential direction B1. The circumferential directions A1 and B1 are nested in a non-intersecting relationship. Similarly, on the corresponding end face of the second slip ring assembly 2, at least one receiving module RX is arranged along the circumferential direction A2, and at least one transmitting module TX is arranged along the circumferential direction B2. The circumferential directions A2 and B2 are nested in a non-intersecting relationship. Circumferential directions A1 and A2 correspond to each other in the direction of the rotation axis; circumferential directions B1 and B2 correspond to each other in the direction of the rotation axis.

[0063] Based on the overall layout design of the radio frequency modules on the first slip ring assembly 1 and the second slip ring assembly 2 described above, during the operation of the slip ring device, it can be ensured that the transmitting module on the first slip ring assembly 1 and the receiving module on the second slip ring assembly 2 maintain a corresponding relationship to realize the first wireless communication link from the first slip ring assembly 1 to the second slip ring assembly 2; and it can also be ensured that the transmitting module on the second slip ring assembly 2 and the receiving module on the first slip ring assembly 1 maintain a corresponding relationship to realize the second wireless communication link from the second slip ring assembly 2 to the first slip ring assembly 1; thereby realizing bidirectional wireless communication transmission between the two slip ring assemblies. Furthermore, there is no specific limitation on whether the transmitting / receiving modules on the first slip ring assembly 1 and the second slip ring assembly 2 are specifically arranged in the inner ring position or the outer ring position on their respective end faces.

[0064] Below are two optional multi-ring arrangement schemes for the first and second slip ring assemblies on the opposite end faces:

[0065] In the first specific embodiment, such as Figure 2a As shown, the nesting relationship between circumferential A1 and circumferential B1 of the first slip ring assembly 1 is as follows:

[0066] Circumferential A1 corresponds to the outer ring, and circumferential B1 corresponds to the inner ring;

[0067] Consequently, the arrangement of the transmit / receive modules on the first slip ring assembly 1 is as follows:

[0068] The transmitting modules TX are arranged along the circumferential direction A1 to form an outer ring transmitting module ring array, and the receiving modules RX are arranged along the circumferential direction B1 to form an inner ring receiving module ring array;

[0069] Correspondingly, the nesting relationship between circumferential A2 and circumferential B2 of the second slip ring assembly 2 is as follows:

[0070] Circumferential A2 corresponds to the outer ring, and circumferential B2 corresponds to the inner ring;

[0071] Consequently, the arrangement of the transmit / receive modules on the second slip ring assembly 2 is as follows:

[0072] The outer ring of receiver modules (RX) is arranged along the circumferential direction A2 to form a ring array, and the inner ring of transmitter modules (TX) is arranged along the circumferential direction B2 to form a ring array.

[0073] In the second specific embodiment, such as Figure 2b As shown, the nesting relationship between circumferential A1 and circumferential B1 of the first slip ring assembly 1 is as follows:

[0074] Circumferential A1 corresponds to the inner ring, and circumferential B1 corresponds to the outer ring;

[0075] Consequently, the arrangement of the transmit / receive modules on the first slip ring assembly 1 is as follows:

[0076] The transmitting modules TX are arranged along the circumferential direction A1 to form an inner ring transmitting module ring array, and the receiving modules RX are arranged along the circumferential direction B1 to form an inner and outer ring receiving module ring array.

[0077] Correspondingly, the nesting relationship between circumferential A2 and circumferential B2 of the second slip ring assembly 2 is as follows:

[0078] Circumferential A2 corresponds to the inner ring, and circumferential B2 corresponds to the outer ring.

[0079] Consequently, the arrangement of the transmit / receive modules on the second slip ring assembly 2 is as follows:

[0080] The receiving modules RX are arranged along the circumferential direction A2 to form an inner ring receiving module ring array, and the transmitting modules TX are arranged along the circumferential direction B2 to form an inner and outer ring transmitting module ring array.

[0081] The wireless slip ring device provided in this embodiment enables high-speed, high-stability, and continuous bidirectional wireless data transmission between the two slip ring components by arranging two slip ring assemblies end-to-end along a common axis and placing the radio frequency module on the corresponding end faces in the aforementioned multi-ring arrangement. This not only significantly improves the lifespan of the slip rings (the lifespan of non-contact slip rings is increased to more than ten years) and enhances their robustness (constant impedance), but also reduces maintenance costs; furthermore, it features a simple structure and low cost.

[0082] In some specific embodiments of this example, to further ensure the continuity and reliability of wireless slip ring signal transmission, the radio frequency modules on the first and second slip ring assemblies can employ one or more combinations of the following four designs regarding wireless coverage:

[0083] Design 1: In the first slip ring assembly, within the circumferentially arranged ring array of transmitting modules A1, the signal radiation ranges of adjacent transmitting modules overlap. This achieves a 360-degree uninterrupted continuous signal transmission area on the first slip ring assembly.

[0084] Design 2: In the first slip ring assembly, the signal radiation ranges of adjacent receiving modules arranged in a circular array along the circumferential direction B1 overlap. This achieves a 360-degree uninterrupted continuous signal reception area on the first slip ring assembly.

[0085] Design 3: In the second slip ring assembly, within the circular array of receiving modules arranged circumferentially along A2, the signal radiation ranges of adjacent receiving modules overlap. This achieves a 360-degree uninterrupted continuous signal reception area on the second slip ring assembly.

[0086] Design 4: In the second slip ring assembly, within the circumferentially arranged ring array of transmitting modules B2, the signal radiation ranges of adjacent transmitting modules overlap. This achieves a 360-degree uninterrupted continuous signal transmission area on the second slip ring assembly.

[0087] It is understandable that the radiation range of a single transmitting / receiving module is limited, and there may be directional or signal coverage blind spots. By overlapping the coverage areas of adjacent RF modules, it can be ensured that regardless of the angle to which the slip ring assembly, which acts as a rotating component, rotates, the signal from at least one (or even more) transmitting modules can be stably received by at least one (or even more) receiving modules on the fixed slip ring assembly. Correspondingly, at least one (or even more) receiving modules can also stably receive the signal emitted by at least one (or even more) transmitting modules on the fixed slip ring assembly. This completely eliminates communication dead spots, achieving truly high-quality, 360-degree uninterrupted bidirectional slip ring signal transmission, significantly improving the reliability of the communication link; better meeting the stringent real-time communication requirements of high-precision equipment, and enhancing the practicality of the wireless slip ring device in this embodiment.

[0088] Below are four exemplary preferred combination designs:

[0089] The first preferred combination design is a combination of Design 1 and Design 2; thereby achieving a 360-degree uninterrupted continuous signal transmission area and a continuous signal reception area on the first slip ring assembly.

[0090] The second preferred combination design is a combination of Design 1 and Design 3; thereby achieving a 360-degree uninterrupted continuous signal reception area on the first slip ring assembly, and a 360-degree uninterrupted continuous signal reception area and a continuous signal transmission area on the second slip ring assembly.

[0091] The third preferred combination design is a combination of Design 4 and Design 2; thereby achieving a 360-degree uninterrupted continuous signal reception area on the second slip ring assembly and on the first slip ring assembly.

[0092] The fourth preferred design combination is a combination of Design 4 and Design 3; thereby achieving a 360-degree uninterrupted continuous signal reception area and a continuous signal transmission area on the second slip ring assembly.

[0093] The above-mentioned preferred combination design, through a simplified RF module layout, can achieve uninterrupted, stable and reliable bidirectional wireless slip ring signal transmission.

[0094] Please see Figure 3a -f, in the diagram, T is used to simplify the transmitting module TX, and R is used to simplify the receiving module RX.

[0095] Based on the previous embodiment, this invention provides a detailed description of the module quantity configuration scheme for the ring array of the transmit / receive modules on the first slip ring assembly 1 and the second slip ring assembly 2.

[0096] In this embodiment, the ring array of transmitting modules on circumferential A1 and the ring array of receiving modules on circumferential A2 used to implement the first wireless communication link (from the first slip ring component to the second slip ring component) can adopt a 1TX-multiple RX, multiple TX-1RX, or multiple TX-multiple RX configuration scheme. Similarly, the ring array of transmitting modules on circumferential B2 and the ring array of receiving modules on circumferential B1 used to implement the second wireless communication link (from the second slip ring component to the first slip ring component) can also adopt a 1TX-multiple RX, multiple TX-1RX, or multiple TX-multiple RX configuration scheme.

[0097] The following detailed implementation methods will illustrate the various RF module quantity configuration schemes described above.

[0098] In the first specific implementation, such as Figure 3a As shown, a multi-TX, multi-RX configuration scheme is used to construct the first wireless communication link:

[0099] Two or more transmitting modules TX are evenly arranged on the circumferential A1 of the first slip ring assembly 1, and two or more receiving modules RX are evenly arranged on the circumferential A2 of the corresponding second slip ring assembly 2.

[0100] In the second specific implementation, such as Figure 3b As shown, the first wireless communication link is constructed using a 1TX multi-RX configuration scheme:

[0101] The first slip ring assembly 1 has only one transmitting module TX on its circumferential A1, while the corresponding second slip ring assembly 2 has two or more receiving modules RX evenly arranged on its circumferential A2.

[0102] In the third specific implementation, such as Figure 3c As shown, a multi-TX 1RX configuration scheme is used to construct the first wireless communication link:

[0103] Two or more transmitting modules TX are evenly arranged on the circumferential A1 of the first slip ring assembly 1, while the corresponding second slip ring assembly 2 has only one receiving module RX on the circumferential A2.

[0104] In the fourth specific implementation, such as Figure 3d As shown, a second wireless communication link is constructed using a multi-TX, multi-RX configuration scheme:

[0105] Two or more transmitting modules TX are evenly arranged on the circumferential B2 of the second slip ring assembly 2, and two or more receiving modules RX are evenly arranged on the circumferential B1 of the corresponding first slip ring assembly 1.

[0106] In the fifth specific implementation, such as Figure 3e As shown, a second wireless communication link is constructed using a 1TX multi-RX configuration scheme:

[0107] The second slip ring assembly 2 has only one transmitting module TX on its circumferential B2, while the corresponding first slip ring assembly 1 has two or more receiving modules RX evenly arranged on its circumferential B1.

[0108] In the sixth specific implementation, such as Figure 3f As shown, a second wireless communication link is constructed using a multi-TX 1RX configuration scheme:

[0109] The second slip ring assembly 2 has two or more transmitting modules TX evenly arranged on the circumferential B2, while the corresponding first slip ring assembly 1 has only one receiving module RX on the circumferential B1.

[0110] In the above specific implementation scheme, when configuring multiple RX or multiple TX, the number of transmitting module TX or receiving module RX can be configured to be 3-20, preferably 4-8. The specific number is determined by a trade-off based on factors such as the circumference of the slip ring assembly, the signal coverage of the RF module, communication quality, cost, and power consumption.

[0111] The above-described specific implementation schemes provide three optional RF module quantity configuration schemes for the first wireless communication link and three optional RF module quantity configuration schemes for the second wireless communication link. Therefore, the duplex mode wireless slip ring device integrating the first and second wireless communication links in this embodiment has nine optional TX / RX configuration schemes in terms of RF module quantity configuration.

[0112] As can be seen, this embodiment, while ensuring uninterrupted, stable, and reliable bidirectional wireless slip ring signal transmission, provides multiple TX / RX configuration schemes for users to flexibly select and precisely match according to the performance, cost, and complexity requirements of different application scenarios. It not only possesses excellent flexibility and adaptability but also facilitates achieving the optimal cost-effectiveness ratio; it also boasts strong scalability and future practicality; furthermore, it enhances the robustness and reliability of the device.

[0113] In a preferred exemplary embodiment, the first slip ring assembly is configured as a rotating member; the second slip ring assembly is configured as a fixing member; as... Figure 2aAs shown, the outer ring of the first slip ring assembly 1 consists of 8 transmitting modules TX evenly arranged along the circumferential direction A1, and the inner ring of the receiving module consists of 4 receiving modules RX evenly arranged along the circumferential direction B1. Correspondingly, the outer ring of the second slip ring assembly 2 consists of 8 receiving modules RX evenly arranged along the circumferential direction A2, and the inner ring of the transmitting module consists of 4 transmitting modules TX evenly arranged along the circumferential direction B2.

[0114] In this embodiment, assuming that neither the first slip ring assembly nor the second slip ring assembly is a hollow structure, such as a non-hollow disk structure or a polygonal structure, a 1TX1RX configuration scheme can also be used to implement the first wireless communication link or the second wireless communication link located in the inner ring.

[0115] Specifically, in the seventh embodiment of this example, a 1TX1RX configuration scheme is used to construct the first wireless communication link located in the inner ring:

[0116] like Figure 4a As shown, the first slip ring assembly 1 has only one transmitting module TX in the circumferential direction A1 located inside the nested relationship, and the transmitting module is set close to the rotation axis; the corresponding second slip ring assembly 2 also has only one receiving module RX in the circumferential direction A2, and the receiving module RX is also set close to the rotation axis.

[0117] Preferably, one of the transmitting modules TX is directly mounted on the rotation axis, and the corresponding receiving module RX is also mounted on the rotation axis. This module layout design is symmetrical, allowing the transmitting and receiving modules to correspond precisely, resulting in more reliable signal transmission performance.

[0118] In the eighth specific implementation of this embodiment, a second wireless communication link located in the inner loop is constructed using a 1TX1RX configuration scheme:

[0119] like Figure 4b As shown, the first slip ring assembly 1 has only one receiving module RX in the circumferential direction B1 located inside the nested relationship, and the receiving module RX is set close to the rotation axis; the corresponding second slip ring assembly 2 also has only one transmitting module TX in the circumferential direction B2, and the transmitting module TX is also set close to the rotation axis.

[0120] Preferably, one of the receiving modules RX is directly mounted on the rotation axis, and the corresponding transmitting module TX is also mounted on the rotation axis. This module layout design is symmetrical, allowing the transmitting and receiving modules to correspond precisely, resulting in more reliable signal transmission performance.

[0121] The aforementioned inner-loop single-T single-R configuration scheme, specifically designed for non-hollow slip ring devices, can still be implemented using a 1TX multiple RX, multiple TX 1RX, or multiple TX multiple RX configuration scheme for the outer ring. This RF module configuration scheme enables the construction of a wireless communication link in the inner ring with a minimalist RF module configuration, achieving simplified module design and precise correspondence. Furthermore, while ensuring the wireless slip ring function, it saves on module and logic gate (OR gate, required for one-to-many or many-to-many communication) configurations, significantly reducing system complexity, power consumption, and cost.

[0122] It is worth noting that the transmitting module TX and receiving module RX involved in all embodiments of the present invention are preferably implemented at the chip level. Specifically, an AIP-packaged chip structure can be adopted; alternatively, a structure of wireless transceiver chip + board-level antenna can be used.

[0123] Among them, the AIP packaged chip structure solution has the RF antenna located inside the package structure, which makes the antenna more secure and stable; at the same time, although its verification cycle is longer, the cost required after verification will be much lower than other antenna structure solutions.

[0124] Among them, the wireless transceiver chip + board-level antenna structure has a relatively large board-level antenna size, but it has significant advantages such as low design difficulty, short verification cycle, low iteration cost and better antenna performance; it can be better suited for application scenarios that require support for higher signal rates and longer transmission distances.

[0125] Please see Figure 5a -d and Figure 7a -c, Figure 5a -d are schematic diagrams of four layout schemes of the first wave-absorbing shielding wall in specific embodiments of the present invention; Figure 7a -c are cross-sectional views of the structure with wave-absorbing shielding scheme in a specific embodiment of the present invention.

[0126] The embodiments of the present invention further extend the above embodiments to provide a wave-absorbing shielding scheme for multi-ring structures.

[0127] The duplex wireless slip ring device provided in this embodiment also includes a circular absorbing shield wall disposed on the corresponding end face of the slip ring assembly, which is used to isolate the inner and outer ring signals and eliminate wireless interference between the rings.

[0128] In some specific embodiments, the absorbing shielding wall comprises a ring of wireless signal shielding barrier and a ring of absorbing material nested thereon. The former provides support and physical shielding, while the latter absorbs wireless signals. Preferably, the absorbing material is located in the inner ring, and the shielding barrier ring is located in the outer ring. Here, the double-ring structure of the absorbing shielding wall effectively prevents wireless signals from passing through the barrier or being reflected, ensuring signal transmission quality.

[0129] In this embodiment, a first annular absorbing shielding wall is specifically included. The first absorbing shielding wall is mainly used to isolate wireless signal interference between the first and second wireless communication links, ensuring the signal transmission quality of both the first and second wireless communication links.

[0130] The first absorbing shielding wall has the following four exemplary deployment schemes available:

[0131] like Figure 5a and Figure 7a As shown, the first deployment scheme is as follows:

[0132] A first wave-absorbing shielding wall 5 is provided between circumferential A1 and circumferential B1 on the first slip ring assembly 1; the first wave-absorbing shielding wall 5, circumferential A1 and circumferential B1 are nested, and the first wave-absorbing shielding wall 5 does not touch the second slip ring assembly 2.

[0133] Here, circumferential A1, the first absorbing shielding wall 5, and circumferential B1 can be three rings nested sequentially from the inside out and spaced a certain distance apart; or they can be three rings nested in the opposite order.

[0134] like Figure 5b As shown, the second deployment scheme is as follows:

[0135] A first absorbing shielding wall 5 is provided between circumferential A2 and circumferential B2 on the second slip ring assembly 2; the first absorbing shielding wall 5, circumferential A2 and circumferential B2 are nested, and the first absorbing shielding wall 5 does not touch the first slip ring assembly 1.

[0136] Here, circumferential A2, the first absorbing shield, and circumferential B2 can be three rings nested sequentially from the inside out and spaced a certain distance apart; or they can be three rings nested in the reverse order. The corresponding structural sectional view can be found in [reference needed]. Figure 7a To understand this, the first wave-absorbing shielding wall 5 is specifically set on the second slip ring assembly 2.

[0137] It is understandable that the first and second layout schemes mentioned above are single-sided retaining wall ring designs, such as... Figure 5a -b and Figure 7a As shown, a first absorbing shielding wall 5 is provided only on the first slip ring assembly 1 or the second slip ring assembly 2, and the width (or height) of the first absorbing shielding wall 5 is determined according to the distance between the two slip ring assemblies, so as to be as close as possible to the other slip ring assembly without touching the overall structure of the corresponding slip ring assembly, so as to prevent friction during rotation.

[0138] like Figure 5c and Figure 7b As shown, the third deployment scheme is:

[0139] A first absorbing shielding wall 5 is provided between circumferential A1 and circumferential B1 on the first slip ring assembly 1; the first absorbing shielding wall 5, circumferential A1, and circumferential B1 are nested together; at the same time, a first absorbing shielding wall 5 is also provided between circumferential A2 and circumferential B2 on the second slip ring assembly 2; the first absorbing shielding wall 5, circumferential A2, and circumferential B2 are nested together.

[0140] Specifically, the first absorbing shielding wall 5 on the first slip ring assembly 1 and the first absorbing shielding wall 5 on the second slip ring assembly 2 are correspondingly arranged and are spaced at a preset distance. The preset distance is preferably greater than or equal to 0.5 mm.

[0141] like Figure 5d and Figure 7c As shown, the fourth deployment scheme is:

[0142] A first absorbing shielding wall 5 is provided between circumferential A1 and circumferential B1 on the first slip ring assembly 1; the first absorbing shielding wall 5, circumferential A1, and circumferential B1 are nested together; at the same time, a first absorbing shielding wall 5 is also provided between circumferential A2 and circumferential B2 on the second slip ring assembly 2; the first absorbing shielding wall 5, circumferential A2, and circumferential B2 are nested together.

[0143] In particular, such as Figure 7c As shown, the first absorbing shielding wall 5 on the first slip ring assembly 1 and the first absorbing shielding wall 5 on the second slip ring assembly 2 are nested, and the first absorbing shielding wall 5 on the first slip ring assembly 1 does not touch the second slip ring assembly 2, and the first absorbing shielding wall 5 on the second slip ring assembly 2 does not touch the overall structure of the first slip ring assembly 1.

[0144] Here, the nesting relationship between the first absorbing shielding wall on the first slip ring assembly and the first absorbing shielding wall on the second slip ring assembly is not specifically defined. For example, as... Figure 5d As shown, the first absorbing shielding wall on the first slip ring assembly can be nested within the first absorbing shielding wall on the second slip ring assembly, i.e., the former is the inner ring and the latter is the outer ring. Alternatively, the nesting relationship can be reversed.

[0145] It is understandable that the third and fourth deployment schemes mentioned above, such as Figure 7b As shown in -c, a first absorbing shielding wall 5 is respectively set on the first slip ring assembly 1 and the second slip ring assembly 2. The nesting relationship between the rings is consistent with the optional nesting relationship provided in the first and second layout schemes above, and will not be elaborated further. Meanwhile, the width (or height) of the first absorbing shielding wall 2 is also determined based on the spacing between the two slip ring assemblies. It is worth noting that the two first absorbing shielding walls on the two slip ring assemblies can be arranged symmetrically (e.g., ...). Figure 7bAs shown), nested structures can also be used (e.g. Figure 7c (as shown); and, similarly, it should be as close as possible to but not touching the overall structure of the corresponding other slip ring assembly to prevent friction during rotation.

[0146] In some specific implementations of this embodiment, such as Figure 6a As shown in -d, it also includes a ring-shaped second absorbing shielding wall 6. The second absorbing shielding wall is mainly used to isolate the wireless signals of the first wireless communication link / second wireless communication link located on the outer ring from external influencing factors, so as to ensure the signal transmission quality of the first wireless communication link / second wireless communication link located on the outer ring.

[0147] The second wave-absorbing shielding wall and the first wave-absorbing shielding wall mentioned above are nested, specifically, the former is nested inside the latter, that is, the former is the outer ring and the latter is the inner ring.

[0148] Similarly, the second wave-absorbing shielding wall also has four exemplary deployment options:

[0149] like Figure 6a As shown and Figure 7a As shown, the first deployment scheme is as follows:

[0150] On the corresponding end face of the first slip ring assembly, a second absorbing shielding wall is provided, which covers all the receiving modules and all the transmitting modules on it; and the second absorbing shielding wall does not touch the second slip ring assembly.

[0151] like Figure 6b As shown, the second deployment scheme is as follows:

[0152] On the corresponding end face of the second slip ring assembly, a second absorbing shielding wall is provided, which encloses all receiving modules and all transmitting modules on it; and the second absorbing shielding wall does not touch the first slip ring assembly. Its corresponding structural cross-sectional view can be found in [reference needed]. Figure 7a To understand this, the second wave-absorbing shielding wall 6 is specifically set on the second slip ring assembly 2.

[0153] It is understandable that the first and second layout schemes mentioned above are single-sided retaining wall ring designs, such as... Figure 6a As shown in -b, a second wave-absorbing shielding wall 6 is provided only on the first slip ring assembly 1 or the second slip ring assembly 2, and the width (or height) of the second wave-absorbing shielding wall 6 is determined according to the distance between the two slip ring assemblies, so as to be as close as possible to the other slip ring assembly without touching the overall structure of the corresponding slip ring assembly, so as to prevent friction during rotation.

[0154] like Figure 6c and Figure 7b As shown, the third deployment scheme is:

[0155] On the corresponding end faces of the first slip ring assembly 1 and the second slip ring assembly 2, a second absorbing shielding wall 6 is respectively provided, which encloses all receiving modules and all transmitting modules on it, and the two are correspondingly arranged at a preset distance. The preset distance is preferably greater than or equal to 0.5 mm.

[0156] like Figure 6d As shown and Figure 7c As shown, the fourth deployment scheme is:

[0157] On the corresponding end faces of the first slip ring assembly 1 and the second slip ring assembly 2, there are second absorbing shielding walls 6 that enclose all receiving modules and all transmitting modules on them, and the two are nested. The second absorbing shielding wall 6 on the first slip ring assembly 1 does not touch the second slip ring assembly 2, and the second absorbing shielding wall 6 on the second slip ring assembly 2 does not touch the overall structure of the first slip ring assembly 1.

[0158] Here, the nesting relationship between the second absorbing shielding wall 6 on the first slip ring assembly 1 and the second absorbing shielding wall 6 on the second slip ring assembly 2 is not specifically limited. For example, as shown... Figure 6d and Figure 7c As shown, the diameter of the second absorbing shielding wall 6 on the first slip ring assembly 1 is smaller than the diameter of the second absorbing shielding wall 6 on the second slip ring assembly 2, so that the second absorbing shielding wall 6 on the first slip ring assembly 1 is nested inside the second absorbing shielding wall 6 on the second slip ring assembly 2, that is, the former is the inner ring and the latter is the outer ring. The nesting relationship can also be reversed.

[0159] It is understandable that the third and fourth deployment schemes mentioned above, such as Figure 7b As shown in -c, a second absorbing shielding wall 6 is respectively set on the first slip ring assembly 1 and the second slip ring assembly 2. The width (or height) of the second absorbing shielding wall is also determined according to the spacing between the two slip ring assemblies. It is worth noting that the two first absorbing shielding walls on the two slip ring assemblies can be arranged symmetrically (e.g., ...). Figure 7b As shown), nested structures can also be used (e.g. Figure 7c (as shown); and, similarly, it should be as close as possible to but not touching the overall structure of the corresponding other slip ring assembly to prevent friction during rotation.

[0160] Based on any of the four deployment schemes mentioned above, the second absorbing shield wall will enclose the ring array of the transmitting / receiving modules located on the outer ring of the two slip ring components, effectively isolating the influence of external signals on the wireless communication link located on the outer ring of the slip ring device; combined with the synergistic effect of the first absorbing shield wall, it can ensure that the bidirectional wireless communication signal maintains high transmission quality during transmission.

[0161] Please see Figure 8a-b and Figure 9 .

[0162] Based on any of the above embodiments, this invention also integrates a wireless power supply function to simultaneously achieve bidirectional data transmission and wireless power transmission.

[0163] The wireless slip ring device in this embodiment, such as Figure 9 As shown, it also includes a wireless power supply component 4; the wireless power supply component 4 includes a power supply transmitter (not shown in the figure) and a power supply receiver (not shown in the figure).

[0164] In this embodiment, the wireless power supply component has two optional configuration options;

[0165] like Figure 8a and Figure 9 As shown, in the first specific embodiment, the wireless power supply component 4 is configured in the outermost ring:

[0166] On the corresponding end face of the first slip ring assembly 1, near its outer edge contour, there is a power supply transmitting coil 41; the transmitting coil 41 nests the circumferential A1 and the circumferential B1 inside;

[0167] On the corresponding end face of the second slip ring assembly 2, a receiving coil 42 for a power supply receiving end is provided near its outer edge contour; the receiving coil 42 nests the circumferential A2 and the circumferential B2 within it.

[0168] Here, the wireless power supply component 4 is configured on the outermost ring of the two slip ring components, with a clear spatial boundary between it and the wireless full-duplex communication component 3 located on the inner ring. This achieves a "decoupling" design of power transmission and data transmission (outer ring power supply, inner ring communication), reducing mutual interference between the two. In particular, when combined with the above-mentioned second absorbing shielding wall configuration, the signals of the two can be effectively isolated to the greatest extent through the second absorbing shielding wall, while ensuring power supply efficiency and communication quality and reliability.

[0169] Specifically, this embodiment has the following significant advantages:

[0170] (1) Effective isolation and reduced interference; There is physical isolation between the outer ring power transmission and the inner ring data transmission, which can effectively suppress the interference of electromagnetic fields on the data communication link;

[0171] (2) Optimize magnetic field design; larger coil area can be deployed to achieve higher power transmission efficiency, longer effective distance and better heat dissipation; inner loop communication has the characteristics of centralized deployment, is less affected by external factors, and the routing distance of high frequency data signals is also shortened, which can achieve more stable, reliable and centralized communication.

[0172] (3) Optimize structural design; the wireless power supply component and the wireless duplex communication component can be designed, tested and maintained independently.

[0173] like Figure 8b As shown, in the second specific embodiment, the wireless power supply component 4 is configured as an intermediate ring:

[0174] On the corresponding end face of the first slip ring assembly 1, a transmitting coil 41 for power supply is provided between circumferential A1 and circumferential B1; the transmitting coil 41, circumferential A1, and circumferential B1 are nested together. Here, the transmitting coil 41 is nested between circumferential A1 and circumferential B1, and does not contact circumferential A1 or circumferential B1; however, the nesting relationship between circumferential A1 and circumferential B1 is not specifically limited.

[0175] Meanwhile, on the corresponding end face of the second slip ring assembly 2, a receiving coil 42 for receiving power is provided between circumferential A2 and circumferential B2; the receiving coil 42, circumferential A2, and circumferential B2 are nested together. Similarly, the receiving coil 42 is nested between circumferential A2 and circumferential B2, and does not contact circumferential A2 or circumferential B2; however, the nesting relationship between circumferential A2 and circumferential B2 is not specifically limited.

[0176] It can be understood that the wireless power supply component is configured in the middle ring between the two slip ring components, that is, between the two wireless communication links of the wireless full-duplex communication component. Here, the power transmission link acts as an "isolation zone," separating data transmission in both directions and ensuring that bidirectional data transmission in full-duplex communication does not interfere with each other.

[0177] The wireless slip ring device provided in this embodiment, assuming that the power supply transmitter is located on the fixed part and the power supply receiver is located on the rotating part, then its wireless power supply transmission principle is as follows:

[0178] An external power supply is connected to the power supply transmitter, which integrates a DC-DC primary side circuit to convert the external power supply into magnetic energy. The magnetic energy is then wirelessly transmitted to the rotating component via the transmitter coil. The receiver coil on the rotating component receives the wireless magnetic energy and sends it to the DC-DC secondary side circuit of the power supply receiver to convert the wireless magnetic energy into electrical energy and store it in a capacitor for use by the load.

[0179] The wireless slip ring device provided in this embodiment can achieve high-speed, high-stability, and continuous wireless bidirectional data and power transmission between the first slip ring assembly and the second slip ring assembly.

[0180] In summary, the duplex wireless slip ring device provided by this invention, compared with the existing contact slip ring device, significantly improves the slip ring life (to more than ten years) by adopting non-contact wireless data / power transmission; compared with the traditional slip ring's transmission rate of only tens of Mbps, it can easily break through the Gbps transmission rate to achieve high-speed transmission; in addition, it also has the characteristics of simple structure, low cost and lower maintenance cost.

[0181] It should be noted that any reference signs placed between parentheses in the claims should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The invention can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

[0182] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0183] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0184] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0185] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0186] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0187] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0188] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A wireless slip ring device of duplex mode, characterized in that, The wireless duplex communication assembly comprises at least two transmitting modules and at least two receiving modules; the first slip ring assembly and the second slip ring assembly are arranged end to end along the direction of the rotation axis, and the corresponding end faces of the two assemblies are spaced apart by a preset distance; The corresponding end faces of the first slip ring assembly and the second slip ring assembly are each provided with at least one transmitting module and at least one receiving module; the at least one transmitting module is arranged on the corresponding end face of the first slip ring assembly in a circumferential direction A1, the at least one receiving module is arranged on the corresponding end face of the first slip ring assembly in a circumferential direction B1, the circumferential direction A1 and the circumferential direction B1 are non-intersecting and in a nested relationship; the at least one receiving module is arranged on the corresponding end face of the second slip ring assembly in a circumferential direction A2, and the at least one transmitting module is arranged on the corresponding end face of the second slip ring assembly in a circumferential direction B2, the circumferential direction A2 and the circumferential direction B2 are non-intersecting and in a nested relationship; The circumferential direction A1 corresponds to the circumferential direction A2 in the direction of the rotation axis; the circumferential direction B1 corresponds to the circumferential direction B2 in the direction of the rotation axis.

2. A wireless slip ring device of the duplex mode according to claim 1, characterized in that, One or more combinations of the following four designs are included: Design one, there is an overlap between the signal radiation ranges of two adjacent transmitting modules on the first slip ring assembly; Design two, there is an overlap between the signal radiation ranges of two adjacent receiving modules on the first slip ring assembly; Design three, there is an overlap between the signal radiation ranges of two adjacent transmitting modules on the second slip ring assembly; Design four, there is an overlap between the signal radiation ranges of two adjacent receiving modules on the second slip ring assembly.

3. The wireless slip ring device of claim 1, wherein, There are more than two transmitting modules uniformly arranged on the circumferential direction A1, and more than two receiving modules uniformly arranged on the circumferential direction A2; And / or, there are more than two transmitting modules uniformly arranged on the circumferential direction B2, and more than two receiving modules uniformly arranged on the circumferential direction B1.

4. The wireless slip ring apparatus of claim 1, wherein, When there is only one transmitting module on the circumferential direction A1, more than two receiving modules are uniformly arranged on the circumferential direction A2; When there is only one receiving module on the circumferential direction A2, more than two transmitting modules are uniformly arranged on the circumferential direction A1; When there is only one receiving module on the circumferential direction B1, more than two transmitting modules are uniformly arranged on the circumferential direction B2; When there is only one transmitting module on the circumferential direction B2, more than two receiving modules are uniformly arranged on the circumferential direction B1.

5. The wireless slip ring apparatus of claim 1, wherein, The first slip ring assembly and the second slip ring assembly are both non-hollow structures; When the circumferential direction A1 is inside the nested relationship on the first slip ring assembly, there is only one transmitting module on the circumferential direction A1, and the one transmitting module is arranged close to the rotation axis; correspondingly, there is only one receiving module on the circumferential direction A2, and the one receiving module is arranged close to the rotation axis; When the circumferential B1 on the first slip ring assembly is inside the nesting relationship, only one receiving module is provided on the circumferential B1, and the one receiving module is arranged close to the rotation axis; Correspondingly, only one transmitting module is provided on the circumferential B2, and the one transmitting module is arranged close to the rotation axis.

6. The wireless slip ring of claim 1, wherein, Further comprising a circular ring type first wave absorbing shielding wall; The first wave absorbing shielding wall is arranged between the circumferential A1 and the circumferential B1 on the first slip ring assembly; the first wave absorbing shielding wall, the circumferential A1 and the circumferential B1 are in a nesting relationship, and the first wave absorbing shielding wall does not touch the second slip ring assembly; Alternatively, the first wave absorbing shielding wall is arranged between the circumferential A2 and the circumferential B2 on the second slip ring assembly; The first wave absorbing shielding wall, the circumferential A2 and the circumferential B2 are in a nesting relationship, and the first wave absorbing shielding wall does not touch the first slip ring assembly.

7. The wireless slip ring of claim 1, wherein, Further comprising a circular ring type first wave absorbing shielding wall; The first wave absorbing shielding wall is arranged between the circumferential A1 and the circumferential B1 on the first slip ring assembly; the first wave absorbing shielding wall, the circumferential A1 and the circumferential B1 are in a nesting relationship; the first wave absorbing shielding wall is arranged between the circumferential A2 and the circumferential B2 on the second slip ring assembly; the first wave absorbing shielding wall, the circumferential A2 and the circumferential B2 are in a nesting relationship; The first wave absorbing shielding wall on the first slip ring assembly is arranged correspondingly to the first wave absorbing shielding wall on the second slip ring assembly, and the two are spaced apart by a predetermined distance; or the first wave absorbing shielding wall on the first slip ring assembly and the first wave absorbing shielding wall on the second slip ring assembly are in a nesting relationship, and the first wave absorbing shielding wall on the first slip ring assembly does not touch the second slip ring assembly, and the first wave absorbing shielding wall on the second slip ring assembly does not touch the first slip ring assembly.

8. A wireless slip ring device of the diplexed type according to claim 6 or 7, characterised in that, Further comprising a circular ring type second wave absorbing shielding wall; On the corresponding end face of the first slip ring assembly or the second slip ring assembly, the second wave absorbing shielding wall is arranged to cover all receiving modules and all transmitting modules thereon; or On the corresponding end face of the first slip ring assembly and the second slip ring assembly, respectively, the second wave absorbing shielding wall is arranged to cover all receiving modules and all transmitting modules thereon, and the two are correspondingly arranged with a predetermined distance apart; or On the corresponding end face of the first slip ring assembly and the second slip ring assembly, respectively, the second wave absorbing shielding wall is arranged to cover all receiving modules and all transmitting modules thereon, and the two are in a nesting relationship, the second wave absorbing shielding wall on the first slip ring assembly does not touch the second slip ring assembly, and the second wave absorbing shielding wall on the second slip ring assembly does not touch the first slip ring assembly.

9. The wireless slip ring of claim 1, wherein, Further comprising a wireless power supply assembly; the wireless power supply assembly comprises a transmitting end coil and a receiving end coil; On the corresponding end face of the first slip ring assembly, the transmitting end coil is arranged close to the outer edge contour; the transmitting end coil nests the circumferential A1 and the circumferential B1; The receiving end coil is arranged on the corresponding end face of the second slip ring assembly, close to the outer edge contour thereof; the receiving end coil nests the circumferential A2 and the circumferential B2.

10. The wireless slip ring device of claim 1, wherein, The wireless power supply assembly comprises a transmitting end coil and a receiving end coil; The transmitting end coil is arranged between the circumferential A1 and the circumferential B1 on the corresponding end face of the first slip ring assembly; the transmitting end coil, the circumferential A1 and the circumferential B1 are in a nested relationship; The receiving end coil is arranged between the circumferential A2 and the circumferential B2 on the corresponding end face of the second slip ring assembly; the receiving end coil, the circumferential A2 and the circumferential B2 are in a nested relationship.

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