Embedded wireless energy signal synchronous receiving mechanism with slip ring

Abstract

The present invention provides an embedded wireless energy signal synchronous reception mechanism with a slip ring. The mechanism features a core structure fixed to a rotating shaft, radially provided with a planar coil and axially provided with a spiral coil. The planar coil is connected to a signal receiving circuit for wireless signal reception, while the spiral coil is connected to an energy receiving circuit for wireless energy reception. Furthermore, a slip ring assembly is provided on the rotating shaft for connecting to brushes for sliding contact power reception. This mechanism can be used in wireless energy signal synchronous transmission systems for rotating structures. It offers a compact structure, easy installation, and controllable operation with different operating frequencies, minimizing interaction between the two.

Description

Technical Field

[0001] The present invention relates to wireless power transmission technology, and in particular to an embedded wireless energy signal synchronous receiving mechanism with a slip ring. Background Art

[0002] Traditional methods of power transmission no longer meet the needs of certain specialized applications. For example, in wind power systems, when the wind drives the turbine, its blades often need to adjust their position. The energy required to drive the blades is often transmitted through conductive slip rings. However, conductive slip rings have many drawbacks: First, the conductive rings are subject to wear. A high lubricant content reduces wear, but conductivity deteriorates; conversely, a low lubricant content improves conductivity but increases wear. Second, the contact area between the slip ring and the brush generates significant heat. Since the conductive ring channels must be insulated, and insulating materials generally have poor thermal conductivity, heat dissipation from the conductive rings is difficult to achieve through conduction.

[0003] To this end, some new methods have been tried to transmit power to rotating parts. For example, rolling ring technology converts sliding friction into rolling friction, reducing wear, but still faces problems such as uneven stress on the rolling elements and the inability to remove grinding. Mercury slip ring technology uses liquid metal to replace sliding friction, eliminating wear but making sealing difficult. Optical slip ring technology uses contactless optical fiber as the transmission medium, but the power it can transmit is relatively low. Therefore, none of these technologies can fully meet the demand for long-term power transmission between the rotating interfaces of moving parts.

[0004] In addition, existing energy transmission mechanisms often require the addition of additional communication modules in order to achieve the transmission of control signals and the collection of sensor signals, and the installation structure is complex. Summary of the Invention

[0005] Based on the above situation, the present invention proposes an embedded wireless energy signal synchronous receiving mechanism with a slip ring for applications where the coupling mechanism is rotatable. By adopting an embedded coupling structure, it can achieve synchronous reception of wireless energy and signals.

[0006] In order to achieve the above object, the specific technical solutions adopted by the present invention are as follows:

[0007] The key to the embedded wireless energy signal synchronous receiving mechanism with slip ring is that it includes a core structure fixed on a rotating shaft, a planar coil is arranged radially on the core structure, and a spiral coil is arranged axially. The planar coil is used to connect to the signal receiving circuit to realize wireless signal reception, and the spiral coil is used to connect to the energy receiving circuit to realize wireless energy reception. A slip ring assembly is also provided on the rotating shaft, and the slip ring assembly is used to connect to the brush to realize sliding contact power reception.

[0008] While retaining the sliding contact type of electric energy transmission, the present invention realizes energy reception and signal reception respectively by setting two coils with different structural forms, thereby reducing the cross-influence between the energy field and the signal field. Through the embedded structural layout, it can work with the sleeve type energy signal synchronous transmission device, and is very suitable for the energy signal synchronous transmission of rotating bodies.

[0009] Optionally, the core structure includes a first flange plate connected to the connecting plate flange, an inner mounting tube is detachably connected to the first flange plate, the planar coil is arranged on the disk surface of the first flange plate, and the spiral coil is arranged on the side wall of the inner mounting tube.

[0010] Optionally, the core structure includes a first flange plate connected to the connecting plate flange, an inner mounting tube is detachably connected to the first flange plate, the planar coil is arranged on the disk surface of the first flange plate, and the spiral coil is arranged on the side wall of the inner mounting tube.

[0011] Optionally, an annular cylindrical magnetic core is further provided between the spiral coil and the inner mounting cylinder.

[0012] Optionally, an outer mounting tube is further sleeved on the outer side of the spiral coil, and one end of the outer mounting tube is connected to the first flange.

[0013] Optionally, the other end of the outer mounting tube is also provided with an annular structure with a card interface, one end of the inner mounting tube abuts against the disk surface of the first flange, and the other end of the inner mounting tube is provided with a card foot structure and is carded with the card interface on the annular structure of the outer mounting tube.

[0014] Optionally, the core structure is further provided with a second flange, a circuit installation cavity is formed between the first flange and the second flange, the signal receiving circuit and the energy receiving circuit are both arranged in the circuit installation cavity, and the slip ring assembly is arranged on the other side of the second flange.

[0015] Optionally, the signal receiving circuit is arranged on a first circuit mounting board, the energy receiving circuit is arranged on a second circuit mounting board, a heat dissipation frame is arranged in the middle of the circuit mounting cavity, and the first circuit mounting board and the second circuit mounting board are respectively fixed on both sides of the heat dissipation frame.

[0016] Optionally, one end of the outer mounting cylinder is open, and the cross section of the port is circular.

[0017] Optionally, the planar coil and the spiral coil are both wound with Litz wire, and the outer mounting cylinder is made of magnetically permeable material.

[0018] Beneficial effects of the present invention:

[0019] The embedded wireless energy signal synchronous receiving mechanism with slip ring proposed in the present invention can be used in the wireless energy signal synchronous transmission system of the rotating structure. The product has a compact structure and is easy to install. It can be controlled in conjunction with different operating frequencies to reduce the mutual influence between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific implementation or the description of the prior art.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is an explosion diagram of the present invention.

[0023] Markings in the figure: 1-rotating shaft, 2-planar coil, 3-spiral coil, 4-first flange, 5-inner mounting cylinder, 6-annular cylindrical magnetic core, 7-annular planar magnetic core, 8-outer mounting cylinder, 9-card interface, 10-card foot structure, 11-second flange, 12-first circuit mounting plate, 13-second circuit mounting plate, 14-heat dissipation frame, 15-mounting bracket, 16-conductive slip ring, 17-connecting plate. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0026] like Figure 1 As shown, the embedded wireless energy signal synchronous receiving mechanism with slip ring provided in this embodiment has the following key features: it includes a core structure fixed on a rotating shaft 1, a planar coil 2 is arranged radially on the core structure, and a spiral coil 3 is arranged axially, the planar coil 2 is used to connect to the signal receiving circuit to realize wireless signal reception, the spiral coil 3 is used to connect to the energy receiving circuit to realize wireless energy reception, and a slip ring assembly 16 is also provided on the rotating shaft 1, and the slip ring assembly 16 is used to connect to the brush to realize sliding contact power reception.

[0027] pass Figure 2As can be seen, the slip ring assembly includes a mounting bracket 15 that rotates coaxially with the rotating shaft 1. Multiple conductive slip rings 16 are evenly distributed along the length of the mounting bracket 15. A connecting plate 17 is also provided at one end of the mounting bracket 15. The core structure includes a first flange 4 flange-connected to the connecting plate. An inner mounting tube 5 is detachably connected to the first flange 4. The planar coil 2 is mounted on the surface of the first flange 4, and the spiral coil 3 is mounted on the sidewall of the inner mounting tube 5. An annular cylindrical magnetic core 6 is also positioned between the spiral coil 3 and the inner mounting tube 5. An annular planar magnetic core 7 is also positioned between the first flange 4 and the planar coil 2. An outer mounting tube 8 is sleeved around the outer surface of the spiral coil 3, one end of which is connected to the first flange 4. One end of the outer mounting tube 8 is open, with a circular cross-section. A magnetic shielding ring is also provided on the open end of the outer mounting tube 8 to prevent magnetic flux leakage from the end of the spiral coil 3, thereby minimizing any impact on other circuits.

[0028] In order to facilitate the positioning and assembly of the outer mounting tube 8 and the inner mounting tube 5, the other end of the outer mounting tube 8 is also provided with an annular structure with a clamping interface 9, and one end of the inner mounting tube 5 is abutted against the disk surface of the first flange 4, and the other end of the inner mounting tube 5 is provided with a clamping foot structure 10 and is clamped with the clamping interface 9 on the annular structure of the outer mounting tube 8.

[0029] The core structure is also provided with a second flange 11, and a circuit installation cavity is formed between the first flange 4 and the second flange 11. The signal receiving circuit and the energy receiving circuit are both arranged in the circuit installation cavity, and the slip ring assembly 16 is arranged on the other side of the second flange 11.

[0030] During implementation, the signal receiving circuit is mounted on a first circuit mounting board 12, and the energy receiving circuit is mounted on a second circuit mounting board 13. A heat sink 14 is provided in the center of the circuit mounting cavity, with the first circuit mounting board 12 and the second circuit mounting board 13 respectively fixed to either side of the heat sink 14. The energy receiving circuit and the signal receiving circuit are mounted using the majority of the redundant space, meeting the heat dissipation requirements of the circuit components.

[0031] In a specific implementation, the planar coil 2 and the spiral coil 3 are both wound with Litz wire. The outer mounting cylinder 8 is made of magnetically permeable material.

[0032] The working principle of the present invention is:

[0033] By adopting a sleeve structure, sliding contact energy transmission is formed between the slip ring assembly and the brush by cooperating with each other, wireless signal reception is achieved by using the planar coil 2 radially arranged on the core structure, and wireless energy reception is achieved by using the spiral coil 3 axially arranged on the core structure. Under the action of the annular planar magnetic core 7 and the annular cylindrical magnetic core 6, the propagation direction of the energy field and the signal field can be effectively controlled to reduce the cross-interference between the two. At the same time, based on the slip ring structure, the brush structure can also be used to achieve sliding contact power transmission. The entire product has a compact structure and is easy to install. In combination with the corresponding wireless energy signal synchronous transmission device, it can effectively achieve wireless energy and signal synchronous transmission of the rotating structure.

[0034] In summary, the embedded wireless energy signal synchronous receiving mechanism with slip ring proposed in the present invention can be used in the wireless energy signal synchronous transmission system of the rotating structure. The product has a compact structure, is easy to install, and can be controlled in conjunction with different working frequencies to reduce the mutual influence between the two.

[0035] In addition, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An embedded wireless energy signal synchronous receiving mechanism with a slip ring, characterized by: It includes a core structure fixed on a rotating shaft, a planar coil is arranged on the core structure in the radial direction, and a spiral coil is arranged in the axial direction, the planar coil is used to connect to a signal receiving circuit to realize wireless signal reception, and the spiral coil is used to connect to an energy receiving circuit to realize wireless energy reception. A slip ring assembly is also provided on the rotating shaft, and the slip ring assembly is used to connect to a brush to realize sliding contact type power reception; The core structure includes a first flange plate connected to the connecting plate flange, an inner mounting tube is detachably connected to the first flange plate, the planar coil is arranged on the disk surface of the first flange plate, the spiral coil is arranged on the side wall of the inner mounting tube, an annular cylindrical magnetic core is also arranged between the spiral coil and the inner mounting tube, an annular planar magnetic core is also arranged between the first flange plate and the planar coil, an outer mounting tube is also sleeved on the outside of the spiral coil, one end of the outer mounting tube is connected to the first flange plate, and a magnetic shielding ring is also arranged on the end face of the open end of the outer mounting tube to prevent magnetic leakage at the end of the spiral coil.

2. The embedded wireless energy signal synchronous receiving mechanism with slip ring according to claim 1, characterized in that: The slip ring assembly includes a mounting bracket that rotates coaxially with the rotating shaft. A plurality of conductive slip rings are evenly distributed along the length direction of the mounting bracket. A connecting plate is also provided at one end of the mounting bracket.

3. The embedded wireless energy signal synchronous receiving mechanism with slip ring according to claim 1, characterized in that: The other end of the outer mounting tube is also provided with an annular structure with a card interface, one end of the inner mounting tube abuts against the disk surface of the first flange, and the other end of the inner mounting tube is provided with a card foot structure and is carded with the card interface on the annular structure of the outer mounting tube.

4. The embedded wireless energy signal synchronous receiving mechanism with slip ring according to claim 3, characterized in that: The core structure is also provided with a second flange, and a circuit installation cavity is formed between the first flange and the second flange. The signal receiving circuit and the energy receiving circuit are both arranged in the circuit installation cavity, and the slip ring assembly is arranged on the other side of the second flange.

5. The embedded wireless energy signal synchronous receiving mechanism with slip ring according to claim 4, characterized in that: The signal receiving circuit is arranged on the first circuit mounting board, the energy receiving circuit is arranged on the second circuit mounting board, a heat dissipation frame is arranged in the middle of the circuit mounting cavity, and the first circuit mounting board and the second circuit mounting board are respectively fixed on both sides of the heat dissipation frame.

6. The embedded wireless energy signal synchronous receiving mechanism with slip ring according to claim 1, characterized in that: One end of the outer installation cylinder is open, and the cross section of the port is circular.

7. The embedded wireless energy signal synchronous receiving mechanism with a slip ring according to claim 5, characterized in that: The planar coil and the spiral coil are both wound with Litz wire, and the outer mounting cylinder is made of magnetically permeable material.

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