Sleeve-type wireless energy signal synchronous transmission mechanism

Abstract

The present invention provides a sleeve-type wireless energy signal synchronous transmission mechanism, which is characterized by comprising a cylindrical structure that can be sleeved on a rotating shaft (10), a planar coil (5) arranged on the bottom (3) of the cylindrical structure, and a spiral coil (8) arranged on the wall of the cylindrical structure, wherein the planar coil (5) is used to connect to a signal transmission circuit to realize wireless signal transmission, and the spiral coil (8) is used to connect to an energy transmission circuit to realize wireless energy transmission. The effect is that the mechanism can be used in a rotating structure wireless energy signal synchronous transmission system, the product has a compact structure, is easy to install, and the energy and signal coils are staggered and work at different resonant frequencies, which can effectively reduce the mutual influence between the two.

Description

Technical Field

[0001] The present invention relates to wireless energy transmission technology, and in particular to a sleeve-type wireless energy signal synchronous transmitting mechanism. 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 a sleeve-type wireless energy signal synchronous transmission mechanism for applications where the coupling mechanism is rotatable. By adopting a sleeve-type coupling structure, it can realize the synchronous transmission 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] A sleeve-type wireless energy signal synchronous transmission mechanism, the key of which is that it comprises a cylindrical structure that can be sleeved on a rotating shaft (10), a planar coil (5) is arranged on the bottom (3) of the cylindrical structure, and a spiral coil (8) is arranged on the wall of the cylindrical structure, the planar coil (5) is used to connect to a signal transmission circuit to realize wireless signal transmission, and the spiral coil (8) is used to connect to an energy transmission circuit to realize wireless energy transmission.

[0008] The present invention realizes energy emission and signal emission respectively by setting up two coils with different structural forms. By adopting different resonant frequencies, the cross-influence between the energy field and the signal field can be effectively reduced. The sleeve-type structural layout is very suitable for the synchronous transmission of energy signals of rotating bodies.

[0009] Optionally, an inner layer mounting tube (6) is detachably connected to the bottom of the tube (3), the spiral coil (8) is wound on the outside of the inner layer mounting tube (6), an annular columnar magnetic core (7) is sleeved on the outside of the spiral coil (8), and an outer layer mounting tube (9) is sleeved on the outside of the annular columnar magnetic core (7).

[0010] Optionally, the inner layer mounting cylinder (6) and the outer layer mounting cylinder (9) are both connected to the cylinder bottom (3) by flanges.

[0011] Optionally, an annular planar magnetic core (4) is further provided between the cylinder bottom (3) and the planar coil (5).

[0012] Optionally, the outer layer of the cylindrical structure is further provided with an outer protective shell, and a circuit installation cavity is reserved between the bottom plate (1) of the outer protective shell and the bottom (3) of the cylindrical structure, and the signal transmission circuit and the energy emission circuit are both provided in the circuit installation cavity.

[0013] Optionally, the signal transmission circuit is arranged on the board surface of the barrel bottom (3), the energy emission circuit is arranged on the circuit mounting board (2), and the circuit mounting board (2) is arranged along the length direction of the circuit mounting cavity.

[0014] Optionally, an axis hole for the rotating shaft (10) to pass through is reserved on the bottom plate (1) of the outer protective shell and the bottom (3) of the cylinder structure.

[0015] Optionally, one end of the cylindrical structure is open and the cross-section of the port is circular.

[0016] Optionally, the planar coil (5) and the spiral coil (8) are both wound with Litz wire.

[0017] Optionally, the inner mounting cylinder (6) is made of magnetically permeable material.

[0018] Beneficial effects of the present invention:

[0019] The sleeve-type wireless energy signal synchronous transmission mechanism 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. The energy and signal coils are arranged in an interlaced manner and operate at different resonant frequencies, which can effectively 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 an exploded view of the installation structure of the present invention.

[0022] Markings in the figure: 1-base plate, 2-circuit mounting plate, 3-cylinder bottom, 4-annular planar magnetic core, 5-planar coil, 6-inner mounting cylinder, 7-annular cylindrical magnetic core, 8-spiral coil, 9-outer mounting cylinder, 10-rotating axis. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] like Figure 1 As shown, this embodiment provides a sleeve-type wireless energy signal synchronous transmission mechanism, including an outer protective shell and a cylindrical structure fixed inside the outer protective shell. The shell of the outer protective shell is stripped and omitted in the figure, and only the bottom plate 1 of the outer protective shell is reflected. A circuit installation cavity is reserved between the bottom plate 1 of the outer protective shell and the bottom 3 of the cylindrical structure. The circuit installation board 2 is arranged along the length direction of the circuit installation cavity. The bottom plate 1 of the outer protective shell and the bottom 3 of the cylindrical structure are both reserved with axial holes for the rotating shaft 10 to pass through. The other end of the cylindrical structure is open and the port cross-section is circular, so that the entire device can be sleeved on the rotating shaft 10 and rotated.

[0026] A planar coil 5 is provided on the bottom 3 of the cylindrical structure, and a spiral coil 8 is provided on the wall of the cylindrical structure. The planar coil 5 is used to connect to the signal transmitting circuit to realize wireless signal transmission, and the spiral coil 8 is used to connect to the energy transmitting circuit to realize wireless energy transmission.

[0027] pass Figure 1It can be seen that during the specific implementation, an inner layer mounting tube 6 is detachably connected to the bottom of the tube 3, the spiral coil 8 is wound on the outside of the inner layer mounting tube 6, an annular cylindrical magnetic core 7 is sleeved on the outside of the spiral coil 8, and an outer layer mounting tube 9 is also sleeved on the outside of the annular cylindrical magnetic core 7. The inner layer mounting tube 6 is made of magnetically conductive material, so that the energy field emitted by the spiral coil 8 can be smoothly transmitted inside and outside. The planar coil 5 and the spiral coil 8 are both wound with Litz wire, and an annular planar magnetic core 4 is also arranged between the bottom of the tube 3 and the planar coil 5.

[0028] In order to ensure stable installation, the inner installation cylinder 6 and the outer installation cylinder 9 are both connected to the cylinder bottom 3 by flanges.

[0029] During implementation, the signal transmission circuit can be arranged on the board surface of the bottom 3 of the tube, and the energy emission circuit can be arranged on the circuit mounting board 2, and most of the redundant space can be used to realize the installation of the energy emission circuit to meet the heat dissipation requirements of the circuit components.

[0030] The working principle of the present invention is:

[0031] By adopting a sleeve structure, the outer diameter of the planar coil 5 is smaller than the inner diameter of the inner mounting sleeve 6, so that the receiving device can be directly embedded in the inner transmitting device from the open end of the inner mounting sleeve 6, and the planar coil arranged on the inner end face of the bottom of the tube is used to realize wireless signal transmission, and the spiral coil arranged on the side of the tube wall is used to realize wireless energy transmission. Under the action of the annular planar magnetic core 4 and the annular cylindrical magnetic core 7, the propagation direction of the energy field and the signal field can be effectively controlled, and the influence of the magnetic field on other external electronic devices can be reduced. The whole product structure is compact and easy to install. In combination with the corresponding wireless energy signal synchronous receiving device, it can effectively realize the wireless energy and signal synchronous transmission of the rotating structure.

[0032] 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. Sleeve-type wireless energy signal synchronous transmission mechanism, characterized by: It comprises a cylindrical structure that can be sleeved on a rotating shaft (10), a planar coil (5) is provided on the bottom (3) of the cylindrical structure, and a spiral coil (8) is provided on the wall of the cylindrical structure, the planar coil (5) is used to connect to a signal transmission circuit to realize wireless signal transmission, and the spiral coil (8) is used to connect to an energy transmission circuit to realize wireless energy transmission; An inner layer mounting cylinder (6) is detachably connected to the cylinder bottom (3), the spiral coil (8) is wound on the outer side of the inner layer mounting cylinder (6), an annular columnar magnetic core (7) is sleeved on the outer side of the spiral coil (8), and an outer layer mounting cylinder (9) is sleeved on the outer side of the annular columnar magnetic core (7); An annular planar magnetic core (4) is further provided between the cylinder bottom (3) and the planar coil (5), and the inner mounting cylinder (6) is made of magnetically conductive material.

2. The sleeve-type wireless energy signal synchronous transmission mechanism according to claim 1, characterized in that: The inner layer mounting cylinder (6) and the outer layer mounting cylinder (9) are both connected to the cylinder bottom (3) by flanges.

3. The sleeve-type wireless energy signal synchronous transmission mechanism according to claim 1, characterized in that: The outer layer of the cylindrical structure is further provided with an outer protective shell, and a circuit installation cavity is reserved between the bottom plate (1) of the outer protective shell and the bottom (3) of the cylindrical structure, and the signal transmission circuit and the energy transmission circuit are both provided in the circuit installation cavity.

4. The sleeve-type wireless energy signal synchronous transmission mechanism according to claim 3, characterized in that: The signal transmitting circuit is arranged on the board surface of the barrel bottom (3), and the energy transmitting circuit is arranged on the circuit mounting board (2). The circuit mounting board (2) is arranged along the length direction of the circuit mounting cavity.

5. The sleeve-type wireless energy signal synchronous transmitting mechanism according to claim 3 or 4, characterized in that: Axial holes for the rotation shaft (10) to pass through are reserved on the bottom plate (1) of the outer protective shell and the bottom (3) of the cylindrical structure.

6. The sleeve-type wireless energy signal synchronous transmitting mechanism according to claim 1 or 3, characterized in that: One end of the cylindrical structure is open, and the cross section of the port is circular.

7. The sleeve-type wireless energy signal synchronous transmitting mechanism according to claim 1 or 3, characterized in that: The planar coil (5) and the spiral coil (8) are both wound using Litz wire.

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