Embedded wireless energy signal synchronous receiving mechanism

Abstract

The present invention provides an embedded wireless energy signal synchronous receiving mechanism, which is characterized in 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 a signal receiving circuit to realize wireless signal reception, and the spiral coil is used to connect an energy receiving circuit to realize wireless energy reception. The effect is that it can be used in a rotating structure wireless energy signal synchronous transmission system, the product structure is compact, the installation is convenient, and it is controlled with different operating frequencies to reduce the mutual influence between the two.

Description

Technical Field

[0001] The present invention relates to wireless power transmission technology, and particularly to an embedded wireless energy signal synchronous receiving mechanism. Background Art

[0002] Traditional power transmission methods can no longer meet the needs of some special application scenarios. For example, in a wind power generation system, when the wind turbine blades are driven to rotate by the wind, their blades often need to adjust their postures, and the energy required to drive the blades to rotate is often transmitted through a conductive slip ring. However, the conductive slip ring has many deficiencies: one is that the conductive ring has wear. If the lubricant content is high, the wear amount is small, but the conductivity becomes poor; on the contrary, if the lubricant content is small, the conductivity is good, but the wear amount increases. The second is that the contact part between the slip ring and the carbon brush generates a large amount of heat. Since the channels of the conductive ring must be insulated from each other, and the insulating material usually has poor thermal conductivity, it is difficult to dissipate the heat of the conductive ring through conduction.

[0003] Therefore, some new methods have also been tried to transmit power to rotating components. For example, the rolling ring technology is adopted to change the sliding friction into rolling friction, reducing the wear amount, but there are still problems such as uneven stress of the rolling elements and inability to discharge grinding; the mercury slip ring technology is adopted to use liquid metal to replace sliding friction, without wear, but it is difficult to seal; the optical slip ring technology is adopted to use non-contact optical fibers as the transmission medium, but the power that can be transmitted is small. Therefore, these technologies cannot fully meet the requirements of long-life power transmission between the rotating interfaces of moving components.

[0004] In addition, for existing energy transmission mechanisms, if they want to achieve the transmission of control signals and the acquisition of sensor signals, they often need to add additional communication modules, and the installation structure is complex. Summary of the Invention

[0005] Based on the above situation, for application scenarios where the coupling mechanism can rotate, the present invention proposes an embedded wireless energy signal synchronous receiving mechanism, which realizes wireless energy and signal synchronous receiving by adopting an embedded coupling structure.

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

[0007] The embedded wireless energy signal synchronous receiving mechanism is characterized in 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 a signal receiving circuit to realize wireless signal receiving, and the spiral coil is used to connect an energy receiving circuit to realize wireless energy receiving.

[0008] The present invention realizes energy reception and signal reception respectively by setting two coils with different structural forms, reduces the cross influence between the energy field and the signal field, and can cooperate with the sleeve-type energy signal synchronous transmission device through the embedded structural layout, which is very suitable for the synchronous transmission of energy signals of rotating bodies.

[0009] Optionally, the core structure is provided with a first flange, and an inner mounting cylinder is detachably connected to the first flange. The planar coil is arranged on the surface of the first flange, and the spiral coil is arranged on the side wall of the inner mounting cylinder.

[0010] Optionally, an annular columnar magnetic core is further arranged between the spiral coil and the inner mounting cylinder.

[0011] Optionally, an outer mounting cylinder is sleeved outside the spiral coil, and one end of the outer mounting cylinder is connected to the first flange.

[0012] Optionally, the other end of the outer mounting cylinder is further provided with an annular surface structure with a card interface. One end of the inner mounting cylinder abuts against the surface of the first flange, and the other end of the inner mounting cylinder is provided with a card foot structure and is clamped with the card interface on the annular surface structure of the outer mounting cylinder.

[0013] Optionally, the core structure is further provided with a second flange, and a circuit mounting 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 mounting cavity.

[0014] Optionally, the signal receiving circuit is arranged on a first circuit mounting board, and the energy receiving circuit is arranged on a second circuit mounting board. A heat dissipation rack 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 rack.

[0015] Optionally, one end of the outer mounting cylinder is in an open shape, and the cross section of the port is circular.

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

[0017] Optionally, the outer mounting cylinder is made of a magnetic conductive material.

[0018] Advantages of the present invention:

[0019] The embedded wireless energy signal synchronous receiving mechanism proposed by the present invention can be used in the wireless energy signal synchronous transmission system of a rotating structure. The product structure is compact, the installation is convenient, and it is controlled with different working frequencies to reduce the mutual influence between the two. Description of the Drawings

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or 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 exploded view of the present invention.

[0023] Markings in the figure: 1 - rotating shaft, 2 - planar coil, 3 - helical coil, 4 - first flange, 5 - inner mounting cylinder, 6 - annular columnar magnetic core, 7 - annular planar magnetic core, 8 - outer mounting cylinder, 9 - card interface, 10 - card foot, 11 - second flange, 12 - first circuit mounting board, 13 - second circuit mounting board, 14 - heat dissipation rack. Specific Embodiments

[0024] The following will describe in detail the embodiments of the technical solutions of the present invention in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, so they are only examples and cannot be used to limit the protection scope of the present invention.

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

[0026] As Figure 1 shown, this embodiment provides an embedded wireless energy signal synchronous receiving mechanism, and the key lies in: including a core structure fixed on the rotating shaft 1, on which a planar coil 2 is arranged radially and a helical coil 3 is arranged axially. The planar coil 2 is used to connect a signal receiving circuit to realize wireless signal reception, and the helical coil 3 is used to connect an energy receiving circuit to realize wireless energy reception.

[0027] Through Figure 2 it can be seen that the core structure is provided with a first flange 4, on which an inner mounting cylinder 5 is detachably connected. The planar coil 2 is arranged on the disk surface of the first flange 4, and the helical coil 3 is arranged on the side wall of the inner mounting cylinder 5. An annular columnar magnetic core 6 is also arranged between the helical coil 3 and the inner mounting cylinder 5. An annular planar magnetic core 7 is also arranged between the first flange 4 and the planar coil 2. An outer mounting cylinder 8 is also sleeved outside the helical coil 3, and one end of the outer mounting cylinder 8 is connected to the first flange 4. One end of the outer mounting cylinder 8 is in an open shape, and the cross section of the port is circular.

[0028] To facilitate the positioning and assembly of the outer mounting cylinder 8 and the inner mounting cylinder 5, a toroidal structure with a card interface 9 is further provided at the other end of the outer mounting cylinder 8. One end of the inner mounting cylinder 5 abuts against the disk surface of the first flange 4, and a card foot 10 structure is provided at the other end of the inner mounting cylinder 5 and is clamped with the card interface 9 on the toroidal structure of the outer mounting cylinder 8.

[0029] The core structure is further provided with a second flange 11. A circuit installation cavity is formed between the first flange 4 and the second flange 11. Both the signal receiving circuit and the energy receiving circuit are arranged in the circuit installation cavity.

[0030] During implementation, the signal receiving circuit is arranged on the first circuit mounting board 12, and the energy receiving circuit is arranged on the second circuit mounting board 13. A heat dissipation rack 14 is arranged in the middle of the circuit installation cavity. The first circuit mounting board 12 and the second circuit mounting board 13 are respectively fixed on both sides of the heat dissipation rack 14. The installation of the energy receiving circuit and the signal receiving power is realized by using most of the redundant space, so as to meet the heat dissipation requirements of circuit components.

[0031] Specifically, both the planar coil 2 and the spiral coil 3 are wound with Litz wire. The outer mounting cylinder 8 is made of a magnetic conductive material.

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

[0033] By adopting a sleeve structure, the wireless signal is received by using the planar coil 2 radially arranged on the core structure, and the wireless energy is received 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 columnar magnetic core 6, the propagation directions of the energy field and the signal field can be effectively controlled, and the cross interference between the two can be reduced. The whole product structure is compact and easy to install. Cooperating with the corresponding wireless energy signal synchronous transmitting device, the wireless energy and signal synchronous transmission of the rotating structure can be effectively realized.

[0034] In summary, the embedded wireless energy signal synchronous receiving mechanism proposed by the present invention can be used in the wireless energy signal synchronous transmission system of the rotating structure. The product structure is compact and easy to install. By controlling with different working frequencies, the mutual influence between the two can be reduced.

[0035] In addition, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. Embedded wireless energy signal synchronous receiving mechanism, Characterized in that: It includes a core structure fixed on a rotating shaft. On the core structure, a planar coil is arranged radially and a spiral coil is arranged axially. The planar coil is used to connect a signal receiving circuit to realize wireless signal reception, and the spiral coil is used to connect an energy receiving circuit to realize wireless energy reception; The core structure is provided with a first flange. An inner layer mounting cylinder is detachably connected to the first flange. The planar coil is arranged on the surface of the first flange, and the spiral coil is arranged on the side wall of the inner layer mounting cylinder; An annular columnar magnetic core is further arranged between the spiral coil and the inner layer mounting cylinder, and an annular planar magnetic core is further arranged between the first flange and the planar coil: The core structure is further provided with a second flange. A circuit installation cavity is formed between the first flange and the second flange, and a heat dissipation rack is arranged in the middle of the circuit installation cavity; An outer layer mounting cylinder is further sleeved outside the spiral coil, and the outer layer mounting cylinder is made of a magnetic conductive material.

2. The embedded wireless energy signal synchronous receiving mechanism according to claim 1, Characterized in that: One end of the outer layer mounting cylinder is connected to the first flange.

3. The embedded wireless energy signal synchronous receiving mechanism according to claim 2, Characterized in that: The other end of the outer layer mounting cylinder is further provided with an annular surface structure with a card interface. One end of the inner layer mounting cylinder abuts against the surface of the first flange, and the other end of the inner layer mounting cylinder is provided with a card foot structure and is clamped with the card interface on the annular surface structure of the outer layer mounting cylinder.

4. The embedded wireless energy signal synchronous receiving mechanism according to claim 3, Characterized in that: Both the signal receiving circuit and the energy receiving circuit are arranged in the circuit installation cavity.

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

6. The embedded wireless energy signal synchronous receiving mechanism according to claim 3, Characterized in that: One end of the outer layer mounting cylinder is in an open shape, and the cross section of the port is circular.

7. The embedded wireless energy signal synchronous receiving mechanism according to claim 1 or 3, Characterized in that: Both the planar coil and the spiral coil are wound with Litz wire.

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