CN113410917B - High-efficient redundant wireless power transmission device - Google Patents
High-efficient redundant wireless power transmission device Download PDFInfo
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- CN113410917B CN113410917B CN202110695237.6A CN202110695237A CN113410917B CN 113410917 B CN113410917 B CN 113410917B CN 202110695237 A CN202110695237 A CN 202110695237A CN 113410917 B CN113410917 B CN 113410917B
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- rotating
- power transmission
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- module
- magnetic field
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
Abstract
The invention discloses a high-efficiency redundant wireless power transmission device, which comprises: the device comprises a rotating unit, a signal transmission unit and a redundant structure; the redundancy structure includes: a plurality of power transmission units and magnetic field shielding units; the power transmission unit includes: a fixed end and a rotating end power transmission carrier module; the magnetic field shielding unit includes: the fixed end and the rotating end are provided with magnetic field shielding modules; the rotating end magnetic field shielding module is arranged on the outer side of the rotating unit; the power transmission unit and the signal transmission unit are respectively used for wirelessly transmitting power and signals from the fixed end to the rotating end in the rotating process of the rotating unit. The high-efficiency redundant wireless power transmission device has the advantages of less abrasion and long service life, can realize simultaneous transmission of multiple strands of power, and can achieve sufficient efficiency in the power transmission function.
Description
Technical Field
The invention relates to the technical field of wireless power transmission, in particular to a high-efficiency redundant wireless power transmission device.
Background
At present, in the field of electromechanical equipment, power is transmitted from a fixed end to a rotating end mainly by adopting a contact mode of a conductive slip ring with a contact point for power transmission. Although there is no problem with the winding of wires in this arrangement, long-term friction due to physical contact in this manner can wear the contacts, which can lead to open circuits, ultimately leading to "failure of the conductive slip ring", reducing the life of the electromechanical device load.
Disclosure of Invention
The invention provides a high-efficiency redundant wireless power transmission device aiming at the problems in the prior art, which has the advantages of less abrasion and long service life, can realize simultaneous transmission of multiple strands of power, and can achieve sufficient efficiency of the power transmission function.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention provides a high-efficiency redundant wireless power transmission device, which comprises: the device comprises a rotating unit, a signal transmission unit and a redundant structure; wherein the content of the first and second substances,
the redundancy structure includes: a power transmission unit and a magnetic field shielding unit; the power transmission unit and the magnetic field shielding unit respectively comprise a plurality of units;
the power transmission unit includes: a fixed end power transmission carrier module and a rotating end power transmission carrier module;
the magnetic field shielding unit includes: the magnetic field shielding module at the fixed end and the magnetic field shielding module at the rotating end are arranged in the shell;
the fixed end power transmission carrier module is arranged on the inner side of the fixed end magnetic field shielding module; the rotating end magnetic field shielding module is arranged on the inner side of the rotating end power transmission carrier;
the power transmission unit and the signal transmission unit are respectively connected with the rotating unit, and the rotating unit is used for controlling the power transmission unit and the signal transmission unit to rotate around a rotating shaft of the rotating unit;
the power transmission unit is used for wirelessly transmitting power from a fixed end power transmission carrier to a rotating end power transmission carrier in the rotating process of the rotating unit;
the signal transmission unit is used for transmitting signals from the fixed end to the rotating end in the rotating process of the rotating unit.
The fixed end of the invention is a part which does not move relatively in the device; wherein the fixed end includes: the fixed end shell serves as an installation place of the whole device and provides support and other functions for the device; the fixed end magnetic field shielding module is fixed on the inner side of the fixed end shell.
Preferably, the signal transmission unit includes: a signal transmission line and a connector module; wherein the content of the first and second substances,
one end of the signal transmission line is connected with the fixed end, and the other end of the signal transmission line is connected with the rotating end;
the connector module is used for driving the signal transmission line to rotate around the rotating shaft in a non-winding mode.
Preferably, the connector module is a signal transmission line slip ring.
The signal transmission line slip ring includes: the stator is fixedly connected with the rotating end; the rotor is connected with the stator, and the rotor and the stator can rotate relatively.
Preferably, the rotating unit includes: the device comprises a driving module and a rotating module; the driving module is connected with the rotating module and used for driving the rotating module to rotate around the rotating shaft.
Preferably, the rotation module includes: the rotary shaft, the upper end cover of the rotary shaft and the lower end cover of the rotary shaft; one end of the rotating shaft is connected with the rotating shaft upper end cover, and the other end of the rotating shaft is connected with the rotating shaft lower end cover.
Preferably, the driving module includes: the driving motor, the motor fixing seat and the motor flange; the motor fixing seat is arranged at the fixing end; the driving motor is fixed on the motor fixing seat; the driving motor is connected with the motor flange; the motor flange is connected with the upper end cover of the rotating shaft; the driving motor is used for driving the motor flange to rotate around the rotating shaft so as to drive the rotating module to rotate around the rotating shaft.
Preferably, the method further comprises the following steps: and the blocking piece is used for positioning the position of the winding in the power transmission unit.
Preferably, the redundancy structure further comprises: and the power transmission unit and the magnetic field shielding unit are positioned through the baffle.
Preferably, each power transmission carrier module is uniformly distributed around the outer circumference of the rotating shaft, so as to ensure the stability of the magnetic field distribution and the stability of transformer parameters of the rotating end in the rotating process.
Compared with the prior art, the embodiment of the invention has at least one of the following advantages:
(1) the high-efficiency redundant wireless power transmission device provided by the invention comprises a plurality of power transmission units and magnetic field shielding units through a redundant structure design, can realize the simultaneous transmission of a plurality of strands of same power or different powers, ensures that different modules carry out power transmission independently, does not influence the normal operation of other transmission modules due to the damage of a certain power transmission module, and improves the transmission efficiency;
(2) according to the efficient redundant wireless power transmission device, power is transmitted in a wireless mode, the problem of failure caused by abrasion of the conductive sliding ring contact is avoided, and the service life of the device is prolonged;
(3) the high-efficiency redundant wireless power transmission device provided by the invention can simultaneously realize the transmission of power and signals through the power transmission unit and the signal transmission unit, and has multiple functions.
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, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an efficient redundant wireless power transmission apparatus according to an embodiment of the invention.
Description of reference numerals:
1-a shell at the fixed end,
2-the axis of rotation is,
3-arranging an upper end cover of the device,
4, an upper end cover of the rotating shaft,
5-the lower end cover of the rotating shaft,
6-a signal transmission line slip ring,
7-a magnetic core at the fixed end,
8-a magnetic core at the rotating end,
9-fixing the end coil at the end,
10-rotating the end coil of the coil,
11-a bearing at the lower part of the device,
12-a bearing at the upper part of the device,
13-a flange of the motor, wherein the flange is provided with a flange,
14-a motor mounting seat, wherein the motor mounting seat is provided with a motor,
100-a rotating unit, the rotating unit,
200-a power transmission unit for transmitting power,
300-a signal transmission unit for transmitting a signal,
400-driving the module.
Detailed Description
The following examples are given for the detailed implementation and specific operation of the present invention, but the scope of the present invention is not limited to the following examples.
In one embodiment, an apparatus for efficient redundant wireless transmission comprises: a rotation unit 100, a signal transmission unit 300, and a redundant structure. Wherein, redundant structure includes: the power transmission unit 200 and the magnetic shielding unit (two are shown in the figure), the power transmission unit 200 and the magnetic shielding unit respectively comprise a plurality of power transmission carrier modules, and the plurality of power transmission carrier modules can independently transmit power and can transmit different powers or the same power. The power transmission unit 200 and the signal transmission unit 300 are respectively connected to the rotation unit 100, and the rotation unit 100 is used for controlling the power transmission unit 200 and the signal transmission unit 300 to rotate around a rotation axis. The device comprises: a fixed end and a rotating end; the power transmission unit 200 is used for wirelessly transmitting power from the fixed end to the rotating end in the rotation process of the rotating unit 100; the signal transmission unit 300 is used for transmitting a signal from the fixed end to the rotating end in the rotating process of the rotating unit; the power transmission unit includes: a plurality of power transmission carrier modules;
in one embodiment, the number of the shielding modules and the number of the power transmission carrier modules may be the same, and the shielding modules and the power transmission carrier modules correspond to each other one to one; the two quantities can also be different, such as: one shielding module may correspond to two or more power transmission carrier modules or two or more shielding modules correspond to one power transmission carrier module.
In this embodiment, the power transmission unit 200 includes: please refer to fig. 1, which shows a fixed end power transmission carrier and a rotating end power transmission carrier. Wherein, stiff end power transmission carrier sets up in the stiff end, includes: a fixed end core 7, a fixed end coil 9, and a fixed end circuit (not shown), the fixed end coil 9 being wound on the fixed end core 7. The rotation end power transmission carrier is provided at the rotation end for rotating around the rotation axis 2 of the rotation unit 100 following the rotation unit, and includes: the rotating end magnetic core 8, the rotating end coil 10 and the rotating end circuit, the rotating end coil 10 is wound on the rotating end magnetic core 8. The power transmission between the fixed end power transmission carrier and the rotating end power transmission carrier is realized through the interaction of the magnetic fields of the fixed end power transmission carrier and the rotating end power transmission carrier and the circuits on the two sides. The magnetic field shielding unit also includes: the rotating end magnetic field shielding module is arranged on the inner side of the rotating end power transmission carrier. The magnetic field shielding unit is used for shielding the influence of an external magnetic field on power transmission and signal transmission, reducing mutual interference among different power transmission units and improving the running stability and transmission performance of the device. The fixed end magnetic field shielding module realizes the positioning of two ends and is connected with the fixed end through the step shape inside the fixed end and the protrusion of the end cover of the fixed end, and the rotating end shielding module is positioned through a step shaft and a gasket and is connected with the rotating shaft 2.
Preferably, the different shielding modules are separated from each other using gaskets.
Preferably, the redundancy structure further comprises: the baffle, power transmission unit and magnetic field shielding unit are fixed a position through the baffle.
In one embodiment, the rotating unit 100 includes: a driving module 400 and a rotating module; wherein, the driving module is connected to the rotating module, and the driving module 400 is used for driving the rotating module to rotate around the rotating shaft 2. In practical application, the rotating unit is usually driven by an independent motor, so that the driving module is an optional module, and the rotating module is driven by the driving module or the independent motor to rotate.
In one embodiment, the rotation module includes: a rotating shaft upper end cover 4 and a rotating shaft lower end cover 5, please refer to fig. 1. One end of the rotating shaft 2 is connected with an upper end cover 4 of the rotating shaft, and the other end of the rotating shaft 2 is connected with a lower end cover 5 of the rotating shaft; the rotating shaft 2 is rotatably connected with the fixed end through a bearing. Preferably, the bearing comprises: a device upper bearing 11 and a device lower bearing 12, the rotating shaft 2 is connected to the fixed end housing 1 of the fixed end through the device upper bearing 11 and the device lower bearing 12, and the rotating unit 100 is located in the fixed end housing 1. In this embodiment, the method further includes: and the device upper end cover 3 is covered above the fixed end shell 1.
In one embodiment, the driving module 400 includes: a driving motor, a motor fixing base 14 and a motor flange 13, please refer to fig. 1. Wherein, the driving motor is fixed on the motor fixing seat 14, the motor fixing seat 14 is arranged on the fixed end shell 1 of the device; the driving motor is connected with a motor flange 13; the motor flange 13 is connected with the upper end cover 4 of the rotating shaft, so that the rotating shaft is driven to rotate by the rotating shaft of the driving motor.
In one embodiment, the central shaft of the driving motor is hollow, and the central wiring hole can pass through.
In one embodiment, the signal transmission unit includes: a signal transmission line and a connector module; one end of the signal transmission line is connected with the fixed end, and the other end of the signal transmission line is connected with the rotating end; the connector module is used for driving the signal transmission line to rotate around the rotating shaft in a non-winding mode. In this embodiment, the connector module employs a signal transmission line slip ring 6, which is fixed to a side of the lower end cover 5 of the rotating shaft facing the inside of the rotating shaft. The signal transmission line slip ring includes: the stator is fixedly connected with the rotating end; the rotor is connected with the stator through a bearing, and the rotor and the stator can rotate relatively.
In a preferred embodiment, the power transmission unit further comprises: and the separation blade is used for assisting in winding and positioning the coil position. Preferably, the shutter includes: a fixed end blocking piece and a rotating end blocking piece. Further preferably, the blocking piece is provided with a winding groove so as to facilitate winding and fixing.
In a preferred embodiment, each power transmission carrier module is evenly distributed around the outer circumference of the axis of rotation.
The high-efficiency redundant wireless power transmission device provided by the embodiment avoids the service life influence caused by physical wear through the wireless power transmission device with the redundant structural design, can realize the simultaneous transmission of power in different loops, ensures that different modules independently carry out power transmission, prevents the damage of a certain power transmission module from influencing the normal operation of other transmission modules, and improves the transmission efficiency.
The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and not to limit the invention. Any modifications and variations within the scope of the description, which may occur to those skilled in the art, are intended to be within the scope of the invention.
Claims (9)
1. An efficient redundant wireless power transfer apparatus, comprising: the device comprises a rotating unit, a signal transmission unit and a redundant structure; wherein the content of the first and second substances,
the redundancy structure includes: a power transmission unit and a magnetic field shielding unit; the power transmission unit and the magnetic field shielding unit respectively comprise a plurality of units;
the power transmission unit includes: a fixed end power transmission carrier module and a rotating end power transmission carrier module;
the magnetic field shielding unit includes: the magnetic field shielding module at the fixed end and the magnetic field shielding module at the rotating end are arranged in the shell; the fixed end power transmission carrier module is arranged on the inner side of the fixed end magnetic field shielding module; the rotating end magnetic field shielding module is arranged on the inner side of the rotating end power transmission carrier;
the power transmission unit and the signal transmission unit are respectively connected with the rotating unit, and the rotating unit is used for controlling the power transmission unit and the signal transmission unit to rotate around a rotating shaft of the rotating unit;
the power transmission unit is used for wirelessly transmitting power from a fixed end power transmission carrier to a rotating end power transmission carrier in the rotating process of the rotating unit;
the signal transmission unit is used for transmitting signals from the fixed end to the rotating end in the rotating process of the rotating unit.
2. The apparatus of claim 1, wherein the signal transmission unit comprises: a signal transmission line and a connector module; wherein the content of the first and second substances,
one end of the signal transmission line is connected with the fixed end, and the other end of the signal transmission line is connected with the rotating end;
the connector module is used for driving the signal transmission line to rotate around the rotating shaft in a non-winding mode.
3. The efficient redundant wireless power transfer apparatus of claim 2, wherein the connector module is a signal transmission line slip ring;
the signal transmission line slip ring includes: a stator, and a rotor, wherein,
the stator is fixedly connected with the rotating end;
the rotor is connected with the stator, and the rotor and the stator can rotate relatively.
4. The efficient redundant wireless power transfer apparatus of claim 1, wherein the rotating unit comprises: the device comprises a driving module and a rotating module; wherein the content of the first and second substances,
the driving module is connected with the rotating module and used for driving the rotating module to rotate around the rotating shaft.
5. The apparatus of claim 4, wherein the rotation module comprises: the rotary shaft, the upper end cover of the rotary shaft and the lower end cover of the rotary shaft; wherein the content of the first and second substances,
one end of the rotating shaft is connected with the upper end cover of the rotating shaft, and the other end of the rotating shaft is connected with the lower end cover of the rotating shaft.
6. The apparatus of claim 5, wherein the driver module comprises: the driving motor, the motor fixing seat and the motor flange; wherein the content of the first and second substances,
the motor fixing seat is arranged at the fixing end;
the driving motor is fixed on the motor fixing seat;
the driving motor is connected with the motor flange;
the motor flange is connected with the upper end cover of the rotating shaft;
the driving motor is used for driving the motor flange to rotate around the rotating shaft so as to drive the rotating module to rotate around the rotating shaft.
7. The apparatus of claim 1, wherein the redundancy structure further comprises: and the blocking piece is used for positioning the position of the winding in the power transmission unit.
8. The apparatus of claim 1, wherein the redundancy structure further comprises: and the power transmission unit and the magnetic field shielding unit are positioned through the baffle.
9. The efficient redundant wireless power transfer apparatus of any of claims 1 to 8, wherein each of the power transfer bearer modules is evenly distributed around an outer circumference of the rotational axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110695237.6A CN113410917B (en) | 2021-06-23 | 2021-06-23 | High-efficient redundant wireless power transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110695237.6A CN113410917B (en) | 2021-06-23 | 2021-06-23 | High-efficient redundant wireless power transmission device |
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| CN113410917A CN113410917A (en) | 2021-09-17 |
| CN113410917B true CN113410917B (en) | 2022-08-02 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| DE10209656A1 (en) * | 2001-09-15 | 2003-04-10 | Abb Research Ltd | Magnetic field generation system and arrangement for the wireless supply of a large number of sensors and / or actuators with a magnetic field generation system |
| JP2011045189A (en) * | 2009-08-21 | 2011-03-03 | Fujitsu Ltd | Method and device for shielding electromagnetic wave in radio power transmission system, and radio power transmission device |
| CN112564303A (en) * | 2020-12-15 | 2021-03-26 | 重庆前卫无线电能传输研究院有限公司 | Sleeve type wireless electric energy transmission coupling mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017075405A1 (en) * | 2015-10-29 | 2017-05-04 | PogoTec, Inc. | Hearing aid adapted for wireless power reception |
| CN108964286B (en) * | 2018-08-17 | 2023-12-01 | 天津工业大学 | High-power dynamic coupling wireless power transmission electric slip ring |
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- 2021-06-23 CN CN202110695237.6A patent/CN113410917B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10209656A1 (en) * | 2001-09-15 | 2003-04-10 | Abb Research Ltd | Magnetic field generation system and arrangement for the wireless supply of a large number of sensors and / or actuators with a magnetic field generation system |
| JP2011045189A (en) * | 2009-08-21 | 2011-03-03 | Fujitsu Ltd | Method and device for shielding electromagnetic wave in radio power transmission system, and radio power transmission device |
| CN112564303A (en) * | 2020-12-15 | 2021-03-26 | 重庆前卫无线电能传输研究院有限公司 | Sleeve type wireless electric energy transmission coupling mechanism |
Non-Patent Citations (1)
| Title |
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| "基于磁耦合谐振的旋转机械嵌入式监控供能技术研究";王磊 等;《工程设计学报》;20111031;第391页至第395页 * |
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