Non-contact rotary transmission device

Abstract

The application relates to a non-contact rotary transmission device, belonging to the technical field of electric slip rings, and solves the technical problems of contact wear, poor matching precision and low service life of a contact type slip ring. The non-contact rotary transmission device comprises an inner ring assembly, an outer ring assembly, a primary side conversion / control circuit module, a secondary side conversion / control circuit module, an upper shell and a lower shell; the inner ring assembly and the outer ring assembly are rotationally connected through bearings, the upper shell is connected to a first end of the inner ring assembly, and the lower shell is connected to a second end of the outer ring assembly; the primary side conversion / control circuit module is connected to the lower shell, and the secondary side conversion / control circuit module is connected to the upper shell; the inner ring assembly comprises an inner magnetic core coil unit and an inner insulation unit, and the outer ring assembly comprises an outer magnetic core coil unit and an outer insulation unit; a gap exists between the inner magnetic core coil unit and the outer magnetic core coil unit, and energy is transmitted through electromagnetic coupling. The non-contact rotary transmission device has no mechanical friction, is widely applicable and has a long service life.

Description

Technical Field

[0001] This invention relates to the field of electric slip ring technology, and more particularly to a non-contact rotary transmission device. Background Technology

[0002] Slip rings are electrical components primarily used to connect and transmit energy and signals to rotating bodies. They mainly consist of two parts: a rotating part and a stationary part. Electrical slip rings are used to conduct electricity and are specifically designed to transmit power and signal power during unrestricted continuous rotation. Traditional electrical slip rings are also called "collector rings" or "conductor rings." They primarily transmit large currents. In recent years, precision electrical slip rings have emerged and have become essential precision electronic and electrical devices for both military and civilian use.

[0003] Most slip rings on the market currently use physical contact for rotational transmission. During operation, this is often accompanied by destructive factors such as wear and electro-corrosion, and also generates noise. As the operating time of the slip ring increases, the wear between the brushes and conductive rings inside the slip ring becomes increasingly noticeable due to frequent contact, affecting the stability of the electrical connection. The decline in the transmission quality of the slip ring will inevitably affect the performance of products using it, and may even cause product failure.

[0004] The contact-type transmission connection method inside the slip ring inevitably causes sliding contact wear, which damages the service life of the brush and conductive ring, and reduces the effective transmission capacity of the transmission device. Summary of the Invention

[0005] Based on the above analysis, the present invention aims to provide a non-contact rotary transmission device to solve the technical problem of wear caused by the internal transmission method of the slip ring, which reduces the service life of the slip ring and reduces the energy transfer efficiency of the transmission device.

[0006] This invention is achieved through the following technical solution:

[0007] A non-contact rotary transmission device includes an inner ring assembly, an outer ring assembly, a primary-side transformation / control circuit module, a secondary-side transformation / control circuit module, an upper housing, and a lower housing. The upper housing is connected to the inner ring assembly, and the lower housing is connected to the outer ring assembly. The upper housing is connected to the secondary-side transformation / control circuit module, and the lower housing is connected to the primary-side transformation / control circuit module. The inner ring assembly includes multiple inner magnetic core coil units, each inner magnetic core coil unit including multiple inner transmission coil groups. The outer ring assembly includes multiple outer magnetic core coil units, each outer magnetic core coil unit including an outer transmission coil group. The inner and outer magnetic core coil units are correspondingly arranged. There is a gap between the inner and outer transmission coil groups, and the inner and outer ring assemblies achieve energy transmission during relative rotation through electromagnetic coupling.

[0008] Furthermore, the inner ring assembly also includes an inner insulation unit, which includes an inner insulating arc-shaped body with an outer stepped shaft platform; the outer ring assembly also includes an outer insulation unit, which includes an outer insulating arc-shaped body with an inner stepped shaft platform.

[0009] Furthermore, the inner insulating arc-shaped body (605) is provided with an outer stepped shaft platform, and multiple inner transmission coil groups are respectively installed on different outer stepped shaft platforms.

[0010] Furthermore, the outer insulating arc-shaped body is provided with an inner stepped shaft platform corresponding to the outer stepped shaft platform; multiple outer magnetic core coils are installed individually on different inner stepped shaft platforms and correspond to the inner transmission coil group.

[0011] Furthermore, the plurality of inner insulating arc-shaped bodies are evenly distributed circumferentially within the inner ring assembly, and the plurality of outer insulating arc-shaped bodies are evenly distributed circumferentially within the outer ring assembly.

[0012] Furthermore, the inner ring assembly and the inner insulation unit are grouped and connected to the outer surface of the inner insulation arc-shaped body; the inner ring assembly also includes an inner shaft, an inner sleeve, and an inner bearing retaining ring. Furthermore, multiple inner insulation arc-shaped bodies are attached to the outer surface of the inner shaft; multiple inner magnetic core coil units are sequentially spaced along the axial direction on the outer cylindrical surface of the inner insulation arc-shaped body; the outer wall surface of the inner magnetic core coil unit is attached to the inner wall surface of the inner sleeve.

[0013] Furthermore, the inner insulation unit includes multiple inner shielding plate units and an inner insulation ring.

[0014] Furthermore, each inner shielding plate unit includes two inner shielding plates, and each of the two shaft ends of each inner transmission coil group is connected to one inner shielding plate; an inner insulating ring is provided between adjacent inner shielding plates.

[0015] Furthermore, the inner magnetic core coil assembly includes an annular inner magnetic core coil base and an inner magnetic core coil with multiple turns wound on the outer wall of the inner magnetic core coil base.

[0016] Furthermore, the radial dimensions of each inner magnetic core coil group vary sequentially; the inner magnetic core coil groups and inner insulation units in the same group have the same dimensions.

[0017] Furthermore, the outer diameters of the multiple inner magnetic core coil bases change sequentially, and the dimensions of the multiple sets of inner shielding plate units and inner insulating rings of the inner insulation unit are matched with the inner magnetic core coil group; the outer wall of the inner insulation arc-shaped body is provided with a stepped axle platform, and the dimensions of the stepped axle platform of the outer wall of the inner insulation arc-shaped body are matched with the dimensions of the inner magnetic core coil group.

[0018] Furthermore, the outer ring assembly and the outer insulation unit are connected in groups to the inner surface of the outer insulation arc-shaped body, and the outer ring assembly also includes an outer shaft, an outer sleeve, a barrier plate, and an outer shaft cover plate.

[0019] Furthermore, the outer wall surfaces of the plurality of outer insulating arc-shaped bodies are attached to the inner surface of the outer shaft; the plurality of outer magnetic core coil units are sequentially arranged along the axial direction on the inner cylindrical surface of the outer insulating arc-shaped body; the inner wall surfaces of the outer magnetic core coil units are attached to the outer wall surfaces of the outer sleeve;

[0020] Furthermore, the barrier plate covers the outer sleeve and limits the axially positioned outer magnetic core coil unit; the barrier plate is connected to the outer shaft;

[0021] Furthermore, the outer shaft cover plate covers the outer end face of the barrier plate, and the outer shaft cover plate, the barrier plate, and the outer shaft are integrally connected.

[0022] Furthermore, the outer insulation unit includes multiple outer shielding plate units and an outer insulation ring assembly.

[0023] Furthermore, each of the outer shielding plate units includes two outer shielding plates, and each of the two shaft ends of each of the outer magnetic core coil groups is connected to one of the outer shielding plates; an outer insulating ring is provided between adjacent outer shielding plate units.

[0024] Furthermore, the outer magnetic core coil assembly includes an annular outer magnetic core coil base and an outer magnetic core coil with multiple turns wound on the inner wall of the outer magnetic core coil base.

[0025] Furthermore, the radial dimensions of each of the outer magnetic core coil groups change sequentially; the outer magnetic core coil groups and outer insulation units in the same group have the same dimensions.

[0026] Furthermore, the inner diameters of the multiple outer magnetic core coil bases change sequentially, the dimensions of the multiple sets of outer shielding plate units and outer insulating rings of the outer insulation unit are matched with the outer magnetic core coil group, and the stepped axle dimensions of the outer wall of the outer insulating arc-shaped body (706) are matched with the dimensions of the outer magnetic core coil group.

[0027] Furthermore, the non-contact rotary transmission device also includes a secondary side conversion / control circuit module (3), a shift fork cover plate (1), and a first socket (2) connected to the upper housing (4); one end of the secondary side conversion / control circuit module (3) is electrically connected to the socket (2), and the other end of the secondary side conversion / control circuit module (3) is electrically connected to multiple inner magnetic core coil units respectively.

[0028] Furthermore, the non-contact rotary transmission device also includes a primary-side conversion / control circuit module, a fixed cover plate, and a second socket, which are respectively connected to the lower housing; one end of the primary-side conversion / control circuit module (8) is electrically connected to the second socket (11), and the other end of the primary-side conversion / control circuit module (8) is electrically connected to a plurality of the external magnetic core coil units.

[0029] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0030] 1. The non-contact rotary transmission device of the present invention avoids wear, heat generation, electro-corrosion and other problems caused by contact slip rings, achieving zero wear and improving service life.

[0031] 2. The non-contact rotary transmission device of the present invention has low electrical noise and high internal mechanical precision.

[0032] 3. The non-contact rotary transmission device of this invention has no contact wear, resulting in less post-production maintenance and effectively reducing maintenance costs.

[0033] 4. The non-contact rotary transmission device of the present invention has a simple structure, is easy to install, and can transmit energy and various control signal forms.

[0034] 5. The wireless contact method of the non-contact rotary transmission device of the present invention has the advantages of no mechanical friction, less wear on parts, low torque, and long service life, and can be applied to occasions with long-term use.

[0035] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0036] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0037] Figure 1 This is a schematic diagram of the overall structure of the non-contact rotary transmission device of the present invention.

[0038] Figure 2 This is a schematic diagram of the rotating section of the inner ring component structure of the present invention;

[0039] Figure 3 This is a schematic diagram of the outer ring component structure rotated and cut.

[0040] Figure 4This is a schematic diagram of the radial midpoint of the inner insulating arc-shaped body of the present invention;

[0041] Figure 5 for Figure 4 Top view;

[0042] Figure 6 Schematic diagram of the radial midpoint of the external insulating arc-shaped body of the present invention;

[0043] Figure 7 for Figure 6 Top view.

[0044] Figure label:

[0045] 1. Shift fork cover plate; 2. First socket; 3. Secondary side conversion / control circuit module; 4. Upper housing; 5. Bearing cover plate;

[0046] 6. Inner ring assembly; 601. Inner bearing retaining ring; 602. First inner insulating ring; 603. First inner shielding plate; 604. First inner magnetic core coil unit; 605. Inner insulating arc-shaped body; 606. Inner sleeve; 607. Second inner insulating ring; 608. Second inner shielding plate; 709. Second inner magnetic core coil unit; 610. Third inner insulating ring; 611. Third inner magnetic core coil unit; 612. Third inner shielding plate; 613. Fourth inner insulating ring; 614. Fourth inner shielding plate; 615. Inner shaft; 616. Fourth inner magnetic core coil unit;

[0047] 7. Outer ring assembly; 701. Outer shaft cover plate; 702. Barrier plate; 703. First outer insulating ring; 704. Outer sleeve; 705. First outer magnetic core coil unit; 706. Outer insulating arc-shaped body; 707. First outer shielding plate; 708. Second outer insulating ring; 709. Second magnetic core coil unit; 710. Second outer shielding plate; 711. Third outer insulating ring; 712. Third outer magnetic core coil unit; 713. Third outer shielding plate; 714. Fourth outer insulating ring; 715. Fourth outer shielding plate; 716. Outer shaft; 717. Fourth outer magnetic core coil unit;

[0048] 8. Primary-side conversion / control circuit module; 9. Lower housing; 10. Fixing cover plate; 11. Second socket. Detailed Implementation

[0049] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0050] The following is combined Figures 1-7 The technical solution of the present invention will be described in more detail below:

[0051] Example 1

[0052] A non-contact rotary transmission device:

[0053] Figure 1 The diagram shows the overall structure of the non-contact rotary transmission device provided by the present invention. The device has a cylindrical structure and includes an inner ring assembly 6, an outer ring assembly 7, a primary side transformation / control circuit module 8, a secondary side transformation / control circuit module 3, an upper housing 4, and a lower housing 9.

[0054] The non-contact rotary transmission device also includes a fixed cover plate 10 and a second socket 11 connected to the lower housing 9, and a fork cover plate 1 and a first socket 2 connected to the upper housing 4.

[0055] Specifically, in this embodiment, the inner ring assembly 6 and the outer ring assembly 7 are rotatably connected by bearings at both ends, forming a rotary pair. The inner rings of the two bearings are pressed against the outer end faces of the shafts at both ends of the inner ring assembly 6, and the inner end faces of the shafts at both ends of the outer ring assembly 7 are pressed against the outer rings of the two bearings.

[0056] The first end face of the upper housing 4 is connected to the first end of the inner ring assembly 6, the second end face of the upper housing 4 is connected to the shift fork cover plate 1, the first socket 2 is connected to the wall of the upper housing 4, and the secondary side conversion / control circuit module 3 is connected inside the upper housing 4.

[0057] The first end face of the lower housing 9 is connected to the second end of the outer ring assembly 7; the second end face of the lower housing 9 is connected to the fixed cover plate 10; the second socket 11 is connected to the wall of the lower housing 9; and the primary-side conversion / control circuit module 8 is connected inside the lower housing 9.

[0058] In this embodiment, the inner ring assembly 6 is the rotor, and the outer ring assembly 7 is the stator. In specific applications, the positions of the shift fork cover plate 1 and the fixed cover plate 10 can be interchanged, and the inner ring assembly 6 can be converted into a rotor, while the outer ring assembly 7 can be converted into a stator.

[0059] The secondary-side transformation / control circuit module 3 and the primary-side transformation / control circuit module 8 can also be converted to each other depending on the specific application.

[0060] The inner ring assembly 6 includes multiple inner magnetic core coil units and inner insulation units. Each inner magnetic core coil unit includes multiple inner transmission coil groups, and the inner insulation unit also includes multiple circumferentially spaced inner insulation arc-shaped bodies 605. The outer ring assembly 7 includes multiple sets of outer magnetic core coil units and outer insulation units. The outer magnetic core coil units include outer transmission coil groups, and the outer insulation units also include multiple circumferentially spaced outer insulation arc-shaped bodies 706. The inner and outer magnetic core coil units are axially positioned correspondingly. A gap is provided between the inner and outer transmission coil units. At this gap, energy is transferred during relative rotation through electromagnetic coupling between the inner ring assembly 6 and the outer ring assembly 7.

[0061] The inner ring assembly 6 of this embodiment includes multiple inner magnetic core coil units, and also includes three circumferentially distributed inner insulating arc-shaped bodies 605 on the outer surface of the inner shaft 615. The inner ring assembly 6 also includes the inner shaft 615, the inner sleeve 606, and the inner bearing retaining ring 601. The upper housing 4 is connected to the inner shaft 615.

[0062] The inner wall surfaces of multiple internally insulated arc-shaped bodies 605 are attached to the outer wall surface of the inner shaft 615;

[0063] Multiple inner magnetic core coil units are arranged sequentially along the axial direction on the outer cylindrical surface of the inner insulating arc-shaped body 605; the inner magnetic core coil unit includes a magnetic core coil wound around the outer wall.

[0064] like Figure 4 and Figure 5 As shown, the inner insulating arc-shaped body 605 is part of a circular annular column. The inner surface of the circular annular column is a cylinder, and the outer surface of the circular annular column is a stepped shaft, forming a multi-step inner insulating arc-shaped body axle.

[0065] like Figure 2 As shown, in this embodiment, the inner surfaces of the three inner insulating arc-shaped bodies 605 are attached to the outer surface of the inner shaft 615; multiple inner magnetic core coil units are arranged along the axial direction at intervals of the inner insulating units on the outer cylindrical surface of the inner insulating arc-shaped body 605; the outer wall surface of the inner magnetic core coil unit is attached to the inner wall surface of the inner sleeve 606.

[0066] The inner bearing retaining ring 601 is connected to one end face of the inner shaft 615 and limits the axially positioned inner magnetic core coil unit by pressing the inner insulation unit.

[0067] The inner insulation unit includes multiple inner shielding plate units and an inner insulation ring.

[0068] Each inner shielding plate unit includes two inner shielding plates, and one inner shielding plate unit shields and protects one inner transmission coil group; the two shaft ends of each inner transmission coil group are respectively connected to one inner shielding plate; an inner insulating ring is set between adjacent inner shielding plates.

[0069] Preferably, each inner shielding plate is a ring structure, and the inner insulating ring is a polytetrafluoroethylene insulating ring.

[0070] This embodiment uses four sets of inner magnetic core coil units, namely a first inner magnetic core coil unit 604, a second inner magnetic core coil unit 709, a third inner magnetic core coil unit 611, and a fourth inner magnetic core coil unit 616. The first inner magnetic core coil unit 604 has two shielding plates of the first inner shielding plate 603 at each end; the second inner magnetic core coil unit 709 has two shielding plates of the second inner shielding plate 608 at each end; the third inner magnetic core coil unit 611 and the fourth inner magnetic core coil unit 616 have two shielding plates of the third inner shielding plate 612 at each end; and the fourth inner magnetic core coil unit 616 has one shielding plate of the fourth inner shielding plate 614 between its outer end and the inner insulating arc-shaped body 605. A first inner insulating ring 602 is provided between two adjacent shielding plates of the first inner shielding plate 603 and the second inner shielding plate 608; a second inner insulating ring 607 is provided between two adjacent shielding plates of the second inner shielding plate 608 and the third inner shielding plate 612; a third inner insulating ring 610 is provided between the third inner shielding plate 612 and the fourth inner shielding plate 614; and a fourth inner insulating ring 613 is provided between the fourth inner shielding plates 614. The radial dimensions of the inner shielding plates and the inner insulating rings are the same as the radial dimensions of the matching inner magnetic core coil assembly.

[0071] In a further preferred embodiment, the third inner magnetic core coil unit 611 and the fourth inner magnetic core coil unit 616 have the same radial dimensions. Correspondingly, the third inner shielding plate 612 and the fourth inner shielding plate 614 have the same radial dimensions, and the third inner insulating ring 613 and the fourth inner insulating ring 613 have the same dimensions.

[0072] Four sets of inner magnetic core coils are sequentially arranged on the corresponding inner insulating arc body shafts of three inner insulating arc bodies 605. The dimensions of the four sets of inner magnetic core coils, together with the matching inner shielding plates and inner insulating rings, match the radial dimensions of the corresponding inner insulating arc body shafts.

[0073] Each inner core coil assembly includes an annular inner core coil base and multiple turns of inner core coil wound on the outer wall of the inner core coil base. Each inner core coil base is a ring-cylindrical structure, with its inner wall fitting against the outer wall of the inner insulating arc-shaped body 605. A cylindrical annular groove is formed on the outer wall for winding the inner core coil. The radial dimensions of the four inner core coil bases change sequentially to match the stepped axle structure set on the outer wall of the inner insulating arc-shaped body 605.

[0074] The outer ring assembly 7 of this embodiment includes multiple outer magnetic core coil units, and also includes three circumferentially distributed outer insulating arc-shaped bodies 706 on the inner surface of the outer shaft 716. The outer ring assembly 7 also includes the outer shaft 716, the outer sleeve 704, the barrier plate 702, and the outer shaft cover plate 701.

[0075] The outer wall surfaces of multiple externally insulating arc-shaped bodies 706 are attached to the inner surface of the outer shaft 716;

[0076] Multiple outer magnetic core coil units are arranged sequentially along the axial direction on the inner cylindrical surface of the outer insulating arc-shaped body 706; the outer magnetic core coil unit includes a magnetic core coil wound on the inner wall; the inner wall surface of the outer magnetic core coil unit is attached to the outer wall surface of the outer sleeve 704.

[0077] A baffle plate 702 covers the outer sleeve 704 and limits the axially positioned outer magnetic core coil unit; the baffle plate 702 is connected to the outer shaft 716;

[0078] The outer shaft cover plate 701 covers the outer end face of the barrier plate 702, and the outer shaft cover plate 701, the barrier plate 702 and the outer shaft 716 are integrally connected.

[0079] like Figure 6 and Figure 7 As shown, the outer insulating arc-shaped body 706 in this embodiment is part of a circular cylinder. The outer surface of the circular cylinder is a cylinder, and the inner surface of the circular cylinder is a stepped shaft, forming a multi-step outer insulating arc-shaped body shaft platform.

[0080] In this embodiment, the outer surfaces of the three outer insulating arc-shaped bodies 706 are attached to the inner wall surface of the outer shaft 716. Multiple outer magnetic core coil units are arranged axially at intervals of outer insulating units on the outer insulating arc-shaped body shaft platform on the inner cylindrical surface of the outer insulating arc-shaped body 706; the outer wall surface of the outer magnetic core coil unit is attached to the outer wall surface of the outer sleeve 704.

[0081] In this embodiment, the outer shaft cover plate 701 connects to the first end face of the outer shaft 716 and presses against the first end face of the outer insulating arc-shaped body 706; the first end face of the lower housing 9 connects to the second end face of the outer shaft 716 and axially limits the outer magnetic core coil unit by pressing against the second end face of the outer insulating arc-shaped body 706; the second end face of the lower housing 9 connects to the fixing cover plate 10. The fixing part of the fixing cover plate 10 is fixed to the external fixing end.

[0082] The external insulation unit includes multiple external shielding plate units and an external insulation ring.

[0083] Each outer shielding plate unit includes two outer shielding plates, and one outer shielding plate unit shields and protects one outer transmission coil group; the two shaft ends of each outer transmission coil group are respectively connected to one outer shielding plate; and an outer insulating ring is set between adjacent outer shielding plates.

[0084] Preferably, each outer shielding plate is a ring structure, and the outer insulating ring is a polytetrafluoroethylene insulating ring.

[0085] This embodiment uses four sets of external magnetic core coil units, namely a first external magnetic core coil unit 705, a second external magnetic core coil unit 709, a third external magnetic core coil unit 712, and a fourth external magnetic core coil unit 717. The first external magnetic core coil unit 705 has two shielding plates of the first external shielding plate 707 at each end; the second external magnetic core coil unit 709 has two shielding plates of the second external shielding plate 710 at each end; the third external magnetic core coil unit 712 and the fourth external magnetic core coil unit 717 have two shielding plates of the third external shielding plate 713 at each end; and the fourth external magnetic core coil unit 717 has one shielding plate of the fourth external shielding plate 715 between its outer end and the outer insulating arc-shaped body 706. A first outer insulating ring 703 is provided between two adjacent shielding plates of the first outer shielding plate 707 and the second outer shielding plate 710; a second outer insulating ring 708 is provided between two adjacent shielding plates of the second outer shielding plate 710 and the third outer shielding plate 713; a third outer insulating ring 711 is provided between the third outer shielding plate 713 and the fourth outer shielding plate 614; and a fourth outer insulating ring 714 is provided between the fourth outer shielding plate 715 and the fourth outer shielding plate 614. The radial dimensions of the outer shielding plates and the outer insulating rings are the same as the radial dimensions of the matching outer magnetic core coil assembly.

[0086] In a further preferred embodiment, the third outer magnetic core coil unit 712 and the fourth outer magnetic core coil unit 717 have the same radial dimensions. Correspondingly, the third outer shielding plate 713 and the fourth outer shielding plate 715 have the same radial dimensions, and the third outer insulating ring 711 and the fourth outer insulating ring 714 have the same dimensions.

[0087] Four sets of external magnetic core coils are sequentially arranged on the corresponding external insulating arc body shafts of three external insulating arc bodies 706. The dimensions of the four sets of external magnetic core coils, together with their matching external shielding plates and external insulating rings, match the radial dimensions of the corresponding external insulating arc body shafts.

[0088] Each outer magnetic core coil assembly includes an annular outer magnetic core coil base and multiple turns of outer magnetic core coil wound on the outer wall of the outer magnetic core coil base. Each outer magnetic core coil base is a ring-cylindrical structure, with its outer wall fitting against the outer wall of the outer insulating arc-shaped body 706. Cylindrical annular grooves are formed in the outer wall for winding the outer magnetic core coil. The radial dimensions of the four outer magnetic core coil bases change sequentially to match the stepped axle structure set on the outer wall of the outer insulating arc-shaped body 706.

[0089] The non-contact rotary transmission device of the present invention is equipped with magnetic core coils of different radial dimensions, and can transmit multiple levels of energy and / or multiple control signal forms with one device.

[0090] Multiple external insulating arc-shaped bodies 706 have their outer wall surfaces attached to the outer surface of the outer shaft 716;

[0091] Multiple outer magnetic core coil units are sequentially arranged axially on the outer cylindrical surface of the outer insulating arc-shaped body 706; the outer wall surface of the outer magnetic core coil unit is attached to the outer wall surface of the outer sleeve 704;

[0092] A baffle plate 702 covers the outer sleeve 704 and limits the axially positioned outer magnetic core coil unit; the baffle plate 702 is connected to the outer shaft 716;

[0093] The outer shaft cover plate 701 covers the outer end face of the barrier plate 702, and the outer shaft cover plate 701, the barrier plate 702 and the outer shaft 716 are integrally connected.

[0094] One end of the secondary-side conversion / control circuit module 3 of the non-contact rotary transmission device is electrically connected to the socket 2, and the other end of the secondary-side conversion / control circuit module 3 is electrically connected to multiple external magnetic core coil units.

[0095] One end of the primary-side conversion / control circuit module 8 of the non-contact rotary transmission device is electrically connected to the second socket 11, and the other end of the primary-side conversion / control circuit module 8 is electrically connected to multiple external magnetic core coil units.

[0096] Example 2

[0097] A method for transmitting energy using a non-contact rotary transmission device, employing the non-contact rotary transmission device of Example 1, for transmitting energy and / or signals.

[0098] When the fork part of the fork cover plate 1 is moved, the upper housing 4 and the inner shaft 615 connected in sequence rotate, and then the inner ring assembly 6 rotates as a whole, that is, the four sets of inner magnetic core coils, together with the matching inner shield plate and inner insulation ring, rotate together.

[0099] The lower housing 9 is fixed to the outer shaft 716 of the outer ring assembly 7, and the fixing cover plate 10 is fixed to the lower housing 9. When the fork part of the fork cover plate 1 is moved, the four sets of inner magnetic core coils rotate. However, since the fixing part of the fixing cover plate 10 is fixed to the external fixing end, the lower housing 9 and the upper housing connected to the outer shaft 716 are fixed. Therefore, the relative rotation between the upper housing 4 and the lower housing 9 ensures the relative rotation between the inner ring assembly 6 and the outer ring assembly 7, thereby ensuring that the inner magnetic core coil of the inner ring assembly 6 and the outer magnetic coil of the outer ring assembly 7 achieve non-contact transmission of signals and energy between the inner ring assembly 6 and the outer ring assembly 7 during relative rotation through electromagnetic coupling.

[0100] Example 3

[0101] A method for installing a non-contact rotary transmission device:

[0102] The inner shaft 615 has a threaded hole and a wire outlet groove at its upper end, and a lateral threaded hole at its lower end. The inner insulating arc-shaped body 605 and the inner shaft 615 are fixedly assembled. Based on the wire outlet space, the radial arrangement of the inner insulating arc-shaped bodies 605 is set to M (M is a natural number), evenly distributed. The inner surfaces of the M inner insulating arc-shaped bodies 605 together form a cylindrical surface. The cylindrical surface formed by the outer surfaces of the M inner insulating arc-shaped bodies 605 has steps of different diameters to match inner magnetic core coil units, inner shielding plates, and inner insulating rings of different apertures, thus ensuring fitting accuracy. The cables of the inner magnetic core coil units are arranged in the space between two inner insulating arc-shaped bodies 605. Each inner magnetic core coil unit has corresponding inner shielding plates on its upper and lower sides, and an inner insulating ring is placed between the outer shielding plates. If the number of inner magnetic core coil units is set to N (N is a natural number), then there are 1 to N types of inner magnetic core coil units. Different numbers and combinations of inner magnetic core coil units can be used according to different requirements. The inner bearing retaining ring 601 is fixed to the threaded hole at the upper end of the inner shaft 615 by screws, ensuring the axial fixation of the inner magnetic core coil unit, the inner shielding plate, and the inner insulating ring. The inner magnetic core coil unit cable is led out from the wire outlet hole at the upper end of the inner bearing retaining ring 601. The inner sleeve 606 is fitted onto the outer cylindrical surface formed by the inner magnetic core coil unit, the inner shielding plate, and the inner insulating ring, and is fixed to the lateral threaded hole at the lower end of the inner shaft 615 by screws.

[0103] The outer shaft 716 has a threaded hole at its upper end and a threaded hole and a wire outlet hole at its lower end. The outer insulating arc-shaped body 706 and the outer shaft 716 are fixedly assembled. The radial arrangement of the outer insulating arc-shaped bodies 706 is determined according to the wire outlet space. Preferably, the number of outer insulating arc-shaped bodies 706 is the same, M, where M is a natural number, preferably 3, evenly distributed. The outer walls of the M outer insulating arc-shaped bodies 706 together form a cylindrical surface. The inner circular surface of the outer insulating arc-shaped body 706 has steps of different diameters to match outer magnetic core coil units, outer shielding plates, and outer insulating rings of different diameters, thereby ensuring fitting accuracy. The cable of the outer magnetic core coil unit is arranged in the space between two outer insulating arc-shaped bodies 706. The number and types of outer magnetic core coil units are the same as those of inner magnetic core coil units. Preferably, this invention has 4 outer magnetic core coil units, with 3 types of outer magnetic core coil units. The barrier plate 702 can effectively block electromagnetic coupling leakage through gaps, reducing losses. The outer circumference of the outer sleeve 704 mates with the inner circumference of the outer magnetic core coil unit, the outer shielding plate, and the outer insulating ring. The outer shaft cover plate 701 is connected to the threaded hole at the upper end of the outer shaft 716 by screws, thereby axially fixing the outer magnetic core coil unit, the outer shielding plate, and the outer insulating ring to the outside of the outer shaft 716. The cable of the outer magnetic core coil unit is led out from the cable outlet hole of the outer shaft 716.

[0104] The secondary-side conversion / control circuit module 3 is installed in the upper housing 4 and fixed relative to the inner shaft 615. The primary-side conversion / control circuit module 8 is installed in the lower housing 9 and fixed relative to the outer shaft 716. The socket wiring of the upper housing 4 and the lower housing 9 does not require external circuitry, forming a complete rotary transmission function in one device, realizing the rotary transmission of signals and energy.

[0105] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art outside the technical scope disclosed in the present invention should be included outside the scope of protection of the present invention. Furthermore, any equipment equipped with this device to expand its application field and produce combined technical effects falls within the scope of protection of this invention.

Claims

1. A non-contact rotary transmission device, characterized by, The application relates to a power transmission device, which comprises an inner ring assembly (6), an outer ring assembly (7), a primary side conversion control circuit module (8), a secondary side conversion control circuit module (3), an upper shell (4), a lower shell (9), a first socket (2) connected to the upper shell (4) and a second socket (11) connected to the lower shell (9). The upper shell (4) is connected with the inner ring assembly (6), and the lower shell (9) is connected with the outer ring assembly (7); the upper shell (4) is connected with the secondary side conversion control circuit module (3), and the lower shell (9) is connected with the primary side conversion control circuit module (8). The inner ring assembly (6) comprises a plurality of inner magnetic core coil units, the inner magnetic core coil units comprise a plurality of inner transmission coil groups, the outer ring assembly (7) comprises a plurality of outer magnetic core coil units, the outer magnetic core coil units comprise outer transmission coil groups, and the inner magnetic core coil units and the outer magnetic core coil units are correspondingly arranged. Gaps exist between the inner transmission coil groups and the outer transmission coil groups, the inner ring assembly (6) and the outer ring assembly (7) are coupled through electromagnetic coupling, and energy transmission is realized in the relative rotation process. The inner ring assembly (6) further comprises an inner insulation unit, the inner insulation unit comprises an inner insulation arc-shaped body (605) with outer stepped shaft platforms, and a plurality of the inner magnetic core coil units are respectively arranged on different outer stepped shaft platforms. The radial dimension of each inner magnetic core coil unit changes in sequence, and the inner magnetic core coil units and the inner insulation unit in the same group have the same size. The outer ring assembly (7) further comprises an outer insulation unit, the outer insulation unit comprises an outer insulation arc-shaped body (706) with inner stepped shaft platforms, the outer stepped shaft platforms correspond to the inner stepped shaft platforms, a plurality of the outer magnetic core coil units are respectively arranged on different inner stepped shaft platforms and correspond to the inner transmission coil groups. The radial dimension of each outer magnetic core coil unit changes in sequence, and the outer magnetic core coil units and the outer insulation unit in the same group have the same size. The inner insulation unit comprises a plurality of inner shielding plate units and an inner insulation ring, each inner shielding plate unit comprises two inner shielding plates, and the two shaft ends of each inner transmission coil group are respectively connected with one inner shielding plate; one inner insulation ring is arranged between adjacent inner shielding plates.

2. The non-contact rotary transfer apparatus according to claim 1, wherein The inner magnetic core coil unit comprises a ring-shaped inner magnetic core coil base body and a plurality of turns of inner magnetic core coils wound on the outer wall of the inner magnetic core coil base body.

3. The non-contact rotary transfer apparatus of claim 1, wherein, The outer insulation unit further comprises a plurality of outer shielding plate units and an outer insulation ring group.

4. The non-contact rotary transfer apparatus according to claim 3, wherein Each outer shielding plate unit comprises two outer shielding plates, the two shaft ends of each outer magnetic core coil unit are respectively connected with one outer shielding plate, and one outer insulation ring is arranged between adjacent outer shielding plate units.

5. The non-contact rotary transfer apparatus of claim 1, wherein, The outer magnetic core coil unit comprises a ring-shaped outer magnetic core coil base body and a plurality of turns of outer magnetic core coils wound on the inner wall of the outer magnetic core coil base body.

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