Sleeve type wireless energy signal synchronous transmitting mechanismTechnical Field
The invention relates to a wireless power transmission technology, in particular to a sleeve type wireless energy signal synchronous transmitting mechanism.
Background
Conventional power transmission schemes have failed to meet the needs of certain specific applications. For example, in a wind power generation system, when a fan is driven to rotate by wind power, the blade of the wind power generation system often needs to be adjusted in posture, and energy required for driving the blade to rotate is often transmitted through a conductive slip ring. However, the conductive slip ring has a plurality of defects that firstly, the conductive ring is worn, if the content of the lubricant is high, the wear amount is small, but the conductivity is poor, and conversely, the lubricant content is small, the conductive performance is good, and the wear amount is increased. Secondly, the heat generated at the contact part of the slip ring and the electric brush is larger, and the conduction ring is difficult to dissipate heat by conduction because the conduction ring channels are insulated and the insulating material is poor in heat conductivity.
Therefore, some attempts have been made to transmit electric energy to the rotating component by using a rolling ring technology, for example, the sliding friction is changed into rolling friction, the abrasion loss is reduced, the problems of uneven stress of the rolling body, unable discharge during grinding and the like still exist, the mercury confluence ring technology is adopted, the sliding friction is replaced by liquid metal, friction is avoided, sealing is difficult, and the light confluence ring technology is adopted, and a non-contact optical fiber is used as a transmission medium, but the power which can be transmitted is smaller. Therefore, none of these techniques fully satisfies the long life power transfer requirements between rotating interfaces of moving parts.
In addition, in the existing energy transmission mechanism, an additional communication module is often required to be added for realizing the transmission of control signals and the acquisition of sensor signals, and the installation structure is complex.
Disclosure of Invention
Based on the above situation, the invention provides a sleeve type wireless energy signal synchronous transmitting mechanism aiming at the application occasion that the coupling mechanism is rotatable, and the wireless energy and the signal are synchronously transmitted by adopting the sleeve type coupling structure.
In order to achieve the above purpose, the specific technical scheme adopted by the invention is as follows:
the sleeve type wireless energy signal synchronous transmitting mechanism is characterized by comprising a cylinder structure which can be sleeved on a rotating shaft (10), wherein a plane coil (5) is arranged on a cylinder bottom (3) of the cylinder structure, a spiral coil (8) is arranged on the cylinder wall of the cylinder structure, the plane coil (5) is used for being connected with a signal transmitting circuit to realize wireless signal transmission, and the spiral coil (8) is used for being connected with the energy transmitting circuit to realize wireless energy transmission.
The invention realizes energy emission and signal emission respectively by arranging the coils with two different structural forms, can effectively reduce the cross influence between the energy field and the signal field by adopting different resonant frequencies, and is very suitable for synchronous transmission of the energy signals of the rotating body by the sleeve type structural layout.
Optionally, an inner layer installation cylinder (6) is detachably connected to the cylinder bottom (3), the spiral coil (8) is wound on the outer side of the inner layer installation cylinder (6), an annular columnar magnetic core (7) is further sleeved on the outer side of the spiral coil (8), and an outer layer installation cylinder (9) is further sleeved on the outer side of the annular columnar magnetic core (7).
Optionally, the inner layer installation cylinder (6) and the outer layer installation cylinder (9) are connected to the cylinder bottom (3) by adopting flanges.
Optionally, an annular planar magnetic core (4) is also arranged between the cylinder bottom (3) and the planar coil (5).
Optionally, the outer layer of barrel structure still is provided with outer protective housing, has reserved the circuit installation cavity between bottom plate (1) of outer protective housing with barrel structure's barrel end (3), signal transmission circuit with energy emission circuit all sets up in the circuit installation cavity.
Optionally, the signal transmission circuit is arranged on the plate surface of the barrel bottom (3), the energy emission circuit is arranged on the circuit mounting plate (2), and the circuit mounting plate (2) is arranged along the length direction of the circuit mounting cavity.
Optionally, shaft holes for the rotation shaft (10) to pass through are reserved on the bottom plate (1) of the outer protective shell and the barrel bottom (3) of the barrel structure.
Optionally, one end of the cylinder structure is open, and the section of the port is circular.
Optionally, the planar coil (5) and the spiral coil (8) are wound by litz wire.
Optionally, the inner layer mounting cylinder (6) is made of a magnetically permeable material.
The invention has the beneficial effects that:
the sleeve type wireless energy signal synchronous transmitting mechanism provided by the invention can be used in a rotating structure wireless energy signal synchronous transmission system, has compact structure, is convenient to install, adopts staggered arrangement of energy and signal coils, works at different resonant frequencies, and can effectively reduce the mutual influence between the energy and the signal coils.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.
Fig. 1 is an exploded view of the mounting structure of the present invention.
The drawing shows a 1-bottom plate, a 2-circuit mounting plate, a 3-cylinder bottom, a 4-annular plane magnetic core, a 5-plane coil, a 6-inner layer mounting cylinder, a 7-annular columnar magnetic core, an 8-spiral coil, a 9-outer layer mounting cylinder and a 10-rotating shaft.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention.
It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs.
As shown in fig. 1, this embodiment provides a synchronous emission mechanism of telescopic wireless energy signal, including the outer protective housing and fix the inside barrel structure of outer protective housing, the casing of outer protective housing is stripped and omitted in the drawing, only shows the bottom plate 1 of outer protective housing, reserves circuit installation cavity between bottom plate 1 of outer protective housing and barrel structure's barrel end 3, and circuit installation board 2 sets up along the length direction in circuit installation cavity, all reserves the shaft hole that supplies axis of rotation 10 to pass on bottom plate 1 of outer protective housing and barrel structure's the barrel end 3, and the barrel structure other end is uncovered form, and the port cross-section is circular for whole device can cup joint and rotate on axis of rotation 10.
The wireless energy transmission device is characterized in that a plane coil 5 is arranged on the barrel bottom 3 of the barrel structure, a spiral coil 8 is arranged on the barrel wall of the barrel structure, the plane coil 5 is used for being connected with a signal transmission circuit to realize wireless signal transmission, and the spiral coil 8 is used for being connected with an energy transmission circuit to realize wireless energy transmission.
It can be seen from fig. 1 that, in the concrete implementation, an inner layer installation cylinder 6 is detachably connected to a cylinder bottom 3, a spiral coil 8 is wound on the outer side of the inner layer installation cylinder 6, an annular columnar magnetic core 7 is sleeved on the outer side of the spiral coil 8, an outer layer installation cylinder 9 is sleeved on the outer side of the annular columnar magnetic core 7, the inner layer installation cylinder 6 is made of a magnetically conductive material, so that an energy field emitted by the spiral coil 8 can be smoothly transmitted on the inner side and the outer side, a planar coil 5 and the spiral coil 8 are formed by winding litz wires, and an annular planar magnetic core 4 is further arranged between the cylinder bottom 3 and the planar coil 5.
In order to ensure stable installation, the inner layer installation cylinder 6 and the outer layer installation cylinder 9 are connected to the cylinder bottom 3 by adopting flanges.
In the implementation process, the signal transmission circuit can be arranged on the plate surface of the barrel bottom 3, the energy emission circuit is arranged on the circuit mounting plate 2, and the installation of the energy emission circuit is realized by utilizing most redundant space, so that the heat dissipation requirement of circuit components is met.
The working principle of the invention is as follows:
Through adopting the sleeve structure, the external diameter of planar coil 5 is less than the internal diameter of inlayer installation section of thick bamboo 6 for receiving arrangement can directly inlay from the open end of inlayer installation sleeve 6 and establish in the interior emitter, the planar coil that the inboard terminal surface of cooperation section of thick bamboo bottom set up realizes wireless signal transmission, and utilize the helical coil that the section of thick bamboo wall side set up to realize wireless energy transmission, under the effect of annular planar magnetic core 4 and annular columnar magnetic core 7, can effective control energy field and signal field's propagation direction, reduce the influence that the magnetic field led to the fact to outside other electronic equipment, whole product compact structure, simple to operate, cooperation corresponding wireless energy signal synchronous receiving arrangement can effectively realize revolution mechanic's wireless energy and signal synchronous transmission.
In addition, the foregoing embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solution described in the foregoing embodiments may be modified or some or all of the technical features may be substituted for the same, and the modifications or substitutions should not depart from the spirit of the technical solution of the present invention, and are intended to be encompassed by the scope of the claims and specification of the present invention.