CN111371193B - Wireless power transmission collector ring and electrical equipment - Google Patents
Wireless power transmission collector ring and electrical equipment Download PDFInfo
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- CN111371193B CN111371193B CN202010284806.3A CN202010284806A CN111371193B CN 111371193 B CN111371193 B CN 111371193B CN 202010284806 A CN202010284806 A CN 202010284806A CN 111371193 B CN111371193 B CN 111371193B
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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
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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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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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention provides a wireless power transmission slip ring, which is characterized by comprising: the magnetic shielding device comprises an inner ring winding, an outer ring winding and a shielding case, wherein the inner ring winding and the outer ring winding are arranged inside the shielding case and are used for shielding a magnetic field generated by the inner ring winding and the outer ring winding from the outside. Through adopting wireless biography electric principle to inner ring winding is the rotor, and outer loop winding is the stator, does not have the contact between rotor and the stator, has solved the wearing and tearing problem that traditional brush collector ring exists, can not take place phenomenons such as contact failure to need not to change the brush, thereby improved the reliability of revolving stage. Meanwhile, the layout of the rotor and the stator is consistent with that of the traditional brushed collector ring, and the traditional brushed collector ring can be conveniently replaced; in addition, the problem of magnetic shielding is solved by adding the shielding case.
Description
Technical Field
The invention relates to the technical field of energy electricity transmission, in particular to a wireless electricity transmission slip ring and electrical equipment.
Background
The collector ring is widely applied to the fields of aerospace, aviation, navigation, medical treatment and various precision instruments, and is a core component of a high-precision rotary table. The function of the device is to realize the transmission of electric power or electric signals between two relative continuous rotating parts and avoid the twisting and the twist-off of the conducting wires during the relative rotation.
Collector rings are also known as collector rings, conducting rings, slip rings, collector rings, etc. It can be used in any electromechanical system that requires continuous rotation while transmitting power and signals from a fixed position to a rotating position. The collector ring can improve the system performance, simplify the system structure and avoid the sprain caused by the lead in the rotation process.
The traditional brush collector ring adopts the brush contact type to transmit electricity, the sliding electric contact of the traditional brush collector ring has larger friction wear, and particularly for the collector ring with large through holes and large diameter, the brush and the conductor have serious wear along with the increase of the sliding distance of the brush wire group and the conducting ring which rotate relatively for one circle. In particular, when the brush and the conductor are worn, poor contact, ignition and the like occur, and the service life is particularly difficult to guarantee.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
The invention provides a wireless power transmission bus ring, which adopts a wireless power transmission principle, takes an inner ring winding as a rotor and an outer ring winding as a stator, and has no contact between the rotor and the stator, thereby solving the abrasion problem of the traditional brush bus ring, avoiding the phenomena of poor contact and the like, and having no need of replacing an electric brush, thereby improving the reliability of a turntable. Meanwhile, the layout of the rotor and the stator is consistent with that of the traditional brushed collector ring, and the traditional brushed collector ring can be conveniently replaced; in addition, the magnetic shielding of the inner winding and the outer winding is realized by adding the shielding case.
The second objective of the present invention is to provide an electrical apparatus, wherein the grounding end of the electronic device is connected to the inner ring of the bearing, and the grounding is achieved by the inner ring of the bearing being conducted to the outer ring of the bearing and the outer ring flange as the bearing seat through the bearing balls. The grounding problem of the electrical equipment is solved, and the mechanical structure is simplified.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
the invention provides a wireless power transmission slip ring, comprising: the magnetic shielding device comprises an inner ring winding, an outer ring winding and a shielding case, wherein the inner ring winding and the outer ring winding are arranged inside the shielding case and are used for shielding a magnetic field generated by the inner ring winding and the outer ring winding from the outside.
In the prior art, a brushed collector ring is mainly adopted. The traditional brush collector ring adopts brush contact type electricity transmission, but the sliding electric contact pair of the traditional brush collector ring inevitably has friction and wear, and particularly for the large-through-hole and large-diameter collector ring, the brush and the conductor have wear along with the increase of the sliding distance of the brush wire group and the conducting ring which rotate relatively for one circle. When the brush and the conductor are worn, the phenomena of poor contact, ignition and the like can occur, and the service life is particularly difficult to guarantee.
In order to solve the technical problems in the prior art, the invention provides a wireless power transmission slip ring. The wireless power transmission collector ring takes the inner ring winding as a rotor and the outer ring winding as a stator, and electric energy transmission is realized through electromagnetic induction of the inner and outer windings. There is not the contact between rotor and the stator, has solved the wearing and tearing problem that traditional brush collector ring exists, can not take place phenomenons such as contact failure and need not to change the brush to the reliability of improvement. And after the shielding case is added, the problem of magnetic shielding of the wireless power transmission collector ring is solved.
Preferably, the shielding case includes an inner ring shielding case and an outer ring shielding case which are concentrically disposed, and the inner ring winding and the outer ring winding are disposed between the inner ring shielding case and the outer ring shielding case. Through setting up two inside and outside shield covers, can exert the shielding effect to the best more.
Further, the inner ring shielding case, the inner ring winding, the outer ring winding and the outer ring shielding case are coaxially arranged. The inner ring shield cover and the outer ring shield cover jointly form a shield cover system, so that an external magnetic field can be better shielded, and the interference of the external magnetic field on the energy transmission process is avoided.
Furthermore, the inner ring shielding cover and the outer ring shielding cover are made of metal materials; furthermore, the shielding cover is made of aluminum. The aluminum shielding cover has good mechanical performance and the most excellent electromagnetic shielding effect, so that the electromagnetic interference of the external environment can be effectively isolated; and meanwhile, the cost can be saved by selecting the aluminum material.
According to the structure, the inner ring shielding cover is arranged on the innermost side of the collector ring, the outer ring shielding cover is arranged on the outermost side of the collector ring, and therefore the whole shielding space formed by surrounding is guaranteed to shield the outside, and electromagnetic interference is avoided.
Preferably, an inner ring flange is arranged between the inner ring winding and the inner ring shielding case, the inner ring winding is mounted on the inner ring flange, and the inner ring flange is symmetrically arranged at the upper end and the lower end of the inner ring shielding case. This arrangement can enhance the structural stability thereof.
In addition, preferably, an outer ring flange is arranged between the outer ring winding and the outer ring shielding case, the outer ring winding is mounted on the outer ring flange, and the outer ring flange is symmetrically arranged at the upper end and the lower end of the outer ring shielding case. Set up like this and can improve collector ring overall structure stability.
More preferably, a bearing for grounding is installed between the inner ring flange and the outer ring flange, the bearing includes a bearing outer ring and a bearing inner ring, the bearing outer ring is installed on the outer ring flange, and the bearing inner ring is installed on the inner ring flange. The grounding is realized through the contact between the inner ring and the outer ring of the bearing and the bearing balls; the grounding end of the electronic equipment on the rotor is connected into the bearing inner ring, and the bearing inner ring is conducted to the bearing outer ring and an outer ring flange serving as a bearing seat through a bearing ball to realize grounding. The design realizes grounding on the premise of keeping no contact between the rotor and the stator, and simplifies the mechanical structure.
For the collector ring, the concrete structure of the inner ring flange is as follows: the bearing comprises an inner ring flange plate, a radial body and a first annular clamping groove, wherein the radial body and the first annular clamping groove are respectively arranged on two sides of the inner ring flange plate; the inner ring winding comprises an inner ring coil and an inner ring framework made of non-metal materials, the inner ring coil is arranged in a gap between the inner ring framework and the inner ring shielding cover, and the inner ring framework is arranged on the first annular clamping groove.
Therefore, the inner ring winding mainly comprises an inner ring coil and an inner ring framework arranged on the first annular clamping groove, and further comprises the inner ring framework, the inner ring coil and a first C-shaped magnet, wherein the inner ring coil is wound on the inner ring framework, and the inner ring coil is pressed on the inner ring framework by the first C-shaped magnet so as to fix the axial position of the winding coil. Furthermore, the inner ring coil is wound on the inner ring circumferential surface of the inner ring framework and is axially fixed by the first C-shaped magnet, so that the working efficiency of the inner ring winding can be improved. For the collector ring, the concrete structure of the outer ring flange is as follows: comprises an outer ring flange; a through hole is formed in the middle of the outer ring flange plate, and a step groove is formed in the periphery of the through hole; a second annular clamping groove is formed in the flange plate, and the second annular clamping groove and the step groove are located on the same side of the flange plate; the end face of the bearing outer ring is tightly attached to the step groove, the outer ring winding comprises an outer ring coil and an outer ring framework made of non-metal materials, the outer ring coil is arranged in a gap between the outer ring framework and the outer ring shielding cover, and the outer ring framework is arranged on the second annular clamping groove.
Therefore, the outer ring winding mainly comprises an outer ring coil and an outer ring framework arranged on the second annular clamping groove, and further comprises the outer ring framework, the outer ring coil and a second C-shaped magnet. The outer ring coil is wound on the outer ring framework, and the second C-shaped magnet presses the outer ring coil on the outer ring framework to fix the axial position of the winding coil. Further, the outer ring coil is wound on the outer circumferential surface of the outer ring bobbin. And is axially fixed by a second C-shaped magnet. The arrangement can improve the working efficiency of the outer ring winding.
In terms of material, the inner ring framework and the outer ring framework are both made of non-metal materials. Furthermore, the framework of the inner ring winding and the outer ring winding can be made of glass fiber reinforced plastic. The glass fiber reinforced plastic material has the characteristics of high strength, excellent corrosion resistance and mechanical properties and the like, has good structural strength, and can be well penetrated by a magnetic field.
It is worth emphasizing that the outer ring coil is installed in a gap between the outer ring framework and the outer ring shielding case, the inner ring coil is installed in a gap between the inner ring framework and the inner ring shielding case, specifically, the inner ring coil and the outer ring coil are arranged oppositely, so that the working efficiency of the wireless current transmission slip ring is improved, and the magnetic field effect is stronger.
In addition, preferably, an inner ring pressure plate is further arranged on the inner ring flange. The inner ring pressure plate is fixed with the diameter body of the inner ring flange through mechanical connection. Furthermore, the inner ring pressure plate is connected and fixed on the radial body of the inner ring flange through a screw rod. The inner ring pressure plate is arranged for pressing the bearing on the inner ring flange so as to prevent the bearing from moving axially relative to the inner ring flange.
Preferably, an outer ring pressure plate is further arranged on the outer ring flange. The outer ring pressure plate is fixed on the flange plate of the outer ring flange through mechanical connection. Furthermore, the outer ring pressure plate is fixed on a flange plate of the outer ring flange through screws. The outer ring pressure plate is arranged to be matched with the outer ring flange to clamp the outer ring of the bearing, so that the bearing is fixed relative to the outer ring flange at the axial position, and the overall reliability of the equipment is improved.
The invention provides a wireless power transmission slip ring and also provides electrical equipment based on the wireless power transmission slip ring.
The electrical equipment comprises an electronic device, and the electronic device is arranged on the wireless power transmission slip ring so as to realize the grounding of the electronic device. The grounding end of the electronic device is connected to the bearing inner ring, and the bearing inner ring is conducted to the bearing outer ring and an outer ring flange serving as a bearing seat through the bearing balls to realize grounding. The design realizes grounding on the premise of keeping no contact between the rotor and the stator, and simplifies the mechanical structure.
The connection mode of the wireless power transmission slip ring and the electronic device is consistent with that of the traditional wired slip ring. By adopting the same connection mode, the seamless conversion between the wireless power transmission collector ring and the traditional wired collector ring is facilitated.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic overall structural shape diagram of a wireless power transmission slip ring according to an embodiment of the present invention;
fig. 2 is a side view of a wireless power transfer slip ring provided by an embodiment of the present invention;
fig. 3 is a top view of a wireless power transfer slip ring according to an embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of FIG. 3;
FIG. 5 is a schematic structural diagram of an outer ring flange according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a wireless power transmission slip ring according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an inner ring flange according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an inner-ring winding according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an outer loop winding according to an embodiment of the present invention.
Description of the drawings:
10-inner ring platen; 20-outer ring pressure plate;
30-an outer ring flange; 301-step groove;
302-outer ring flange; 303-a second ring-shaped card slot;
40-a bearing; 50-an inner ring flange;
501-an inner ring flange plate; 502-footpath;
503-a first ring card slot; 60-inner ring winding
601-a first C-shaped magnet; 602-inner loop coil;
603-inner ring framework; 70-outer ring winding;
701-a second C-shaped magnet; 702 — an outer loop coil;
703-outer ring skeleton; 80-outer ring shield;
90-inner ring shield;
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings and the detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to more clearly illustrate the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Fig. 1 is a schematic diagram of an external structure of a wireless power transmission slip ring according to an embodiment of the present invention. Fig. 2 is a side view thereof, and fig. 3 is a top view thereof. Fig. 4 is a cross-sectional view of the wireless power transfer slip ring taken along a-a of fig. 3. The wireless power transmission slip ring of the embodiment of the invention comprises an inner ring pressure plate 10; an outer ring platen 20; an outer ring flange 30; a bearing 40; an inner ring flange 50; the inner-ring winding 60; an outer ring winding 70; an outer ring shield 80; the inner ring shield 90.
The structure of the outer ring flange 30 is shown in fig. 5, and comprises an outer ring flange 302; a through hole is formed in the middle of the outer ring flange plate 302, and a step groove 301 is formed in the periphery of the through hole; and a second annular clamping groove 303 is arranged on the flange plate, and the second annular clamping groove 303 and the step groove 301 are positioned on the same side of the outer ring flange 302.
The inner ring flange 50 is structurally shown in fig. 7, and includes an inner ring flange 501, a radial body 502 and a first ring slot 503, which are respectively disposed on two sides of the inner ring flange.
The structure of the inner ring winding 60 is shown in fig. 8, and includes an inner ring frame 603, the inner ring frame 603 is made of glass fiber reinforced plastic, an inner ring coil 602 is wound around an inner circumferential surface of the inner ring frame 603, and the inner ring coil 602 is axially fixed by a first C-shaped magnet 601.
The structure of the outer ring winding 70 is shown in fig. 9, and includes an outer ring bobbin 703, an outer ring coil 702 is wound on the outer circumferential surface of the outer ring bobbin 703, and the outer ring coil 702 is axially fixed by a second C-shaped magnet 701.
The inner ring framework 603 and the outer ring framework 703 are both made of glass fiber reinforced plastic, the glass fiber reinforced plastic has the performance characteristics of high strength, corrosion resistance and the like, the structural strength can be ensured on the premise that a magnetic field can penetrate through, and the use requirement is met.
Fig. 6 is an exploded perspective view of a wireless power transmission slip ring according to an embodiment of the present invention. Wherein the inner ring winding 60 is coaxially arranged with the outer ring winding 70. An inner ring shielding cover 90 is arranged on the inner side of the inner ring winding 60, an outer ring shielding cover 80 is arranged on the outer side of the outer ring winding 70, and the inner ring shielding cover 90 and the outer ring shielding cover 80 are coaxially arranged with the inner ring winding 60 and the outer ring winding 70.
In order to ensure that the inner ring shield 90 and the outer ring shield 80 can shield the external magnetic field, the inner ring shield 90 and the outer ring shield 80 are made of aluminum. The aluminum shielding cover has good mechanical property and can effectively isolate electromagnetic interference of external environment; and meanwhile, the cost can be saved by selecting the aluminum material.
The upper end and the lower end of the inner ring winding 60 are symmetrically provided with an inner ring flange 50, and an inner ring framework 603 of the inner ring winding 60 is installed on a first annular clamping groove 503 of the inner ring flange 50. Outer ring flanges 30 are arranged at the upper end and the lower end of the outer ring winding 70; the outer ring winding 70 is fixed to the second ring-shaped clamping groove 303 of the outer ring flange 30. The inner ring shield 90 is fixed to the inner circumferential surface of the inner ring flange 50 by screw connection, and the outer ring shield 80 is fixed to the outer circumferential surface of the outer ring flange 30 by screw connection. The inner ring shield 90 and the outer ring shield 80 together form a shield system, which can shield the external magnetic field and avoid the interference of the external magnetic field.
A bearing 40 used for grounding is installed between the inner ring flange 50 and the outer ring flange 30, the outer ring of the bearing 40 is fixed on the outer ring flange through interference fit, and the inner ring of the bearing 40 is fixed on the inner ring flange 50 through interference connection. The grounding is realized through the contact between the inner ring and the outer ring of the bearing and the bearing balls; the grounding end of the electronic equipment on the rotor is connected into the bearing inner ring, and the bearing inner ring is conducted to the bearing outer ring and the outer ring flange 30 serving as the bearing seat through the bearing balls to realize grounding.
The inner ring flange 50 is further provided with an inner ring pressure plate 10, the inner ring pressure plate 10 is connected to the inner ring flange 50 through a screw rod to play a role of a shaft end plate, and the bearing 40 is pressed on the inner ring flange 50 so as to prevent the bearing 40 from moving axially relative to the inner ring flange 50.
The outer ring flange 30 is further provided with an outer ring pressure plate 20, the outer ring pressure plate 20 and the outer ring flange 30 are fixed and clamped with the bearing outer ring through screws, and the bearing 40 is fixed relative to the outer ring flange 30 at the axial position.
In operation, the inner surrounding set 60 is the rotor and the outer surrounding set 70 is the stator. The inner and outer ring shield covers are provided with openings, and the wires are led out from the openings and used for connecting power supply equipment and electric equipment. The current of the power supply equipment enters the collector ring stator, and the current is generated at the rotor end through the electromagnetic induction of the inner winding and the outer winding, so that the electric energy transmission is realized. The grounding end of the electronic equipment on the rotor is connected into the bearing inner ring, and the bearing inner ring is conducted to the bearing outer ring and the outer ring flange 30 serving as the bearing seat through the bearing balls to realize grounding.
The wireless power transmission bus ring provided by the embodiment of the invention realizes the transmission of electric energy by adopting a movement mode that an inner rotor coaxially rotates relative to an outer stator, wherein an inner aluminum shielding cover, an outer aluminum shielding cover and an aluminum inner flange are connected through screws to form an aluminum cavity for wrapping an inner winding and an outer winding, so that the magnetic shielding of the wireless power transmission bus ring is realized; the grounding is realized through the contact between the inner ring and the outer ring of the bearing and the bearing balls; and the traditional wired collector ring can be conveniently replaced by adopting the same working mode as the traditional wired collector ring.
In a word, the wireless power transmission bus ring has good reliability, solves the abrasion problem of the traditional brush bus ring, does not have the phenomena of poor contact and the like, and does not need to replace the electric brush; the layout of the rotor and the stator is consistent with that of the traditional brushed collector ring, so that the traditional brushed collector ring is convenient to replace; the mechanical structure is simplified by grounding the shielding cover system and the bearing; the magnetic shielding of the inner winding and the outer winding is realized.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A wireless power transfer slip ring, comprising: the inner ring winding and the outer ring winding are arranged inside the shielding case and are used for shielding a magnetic field generated by the inner ring winding and the outer ring winding from the outside;
the shielding cover comprises an inner ring shielding cover and an outer ring shielding cover which are concentrically arranged, and the inner ring winding and the outer ring winding are arranged between the inner ring shielding cover and the outer ring shielding cover;
an inner ring flange is arranged between the inner ring winding and the inner ring shielding case, the inner ring winding is arranged on the inner ring flange, and the inner ring flange is symmetrically arranged at the upper end and the lower end of the inner ring shielding case;
an outer ring flange is arranged between the outer ring winding and the outer ring shielding case, the outer ring winding is arranged on the outer ring flange, and the outer ring flange is symmetrically arranged at the upper end and the lower end of the outer ring shielding case;
a bearing used for grounding is arranged between the inner ring flange and the outer ring flange, the bearing comprises a bearing outer ring and a bearing inner ring, the bearing outer ring is arranged on the outer ring flange, and the bearing inner ring is arranged on the inner ring flange;
the grounding is realized through the contact between the inner ring and the outer ring of the bearing and the bearing balls; the grounding end of the electronic equipment on the rotor is connected into the bearing inner ring, and the bearing inner ring is conducted to the bearing outer ring and an outer ring flange serving as a bearing seat through a bearing ball to realize grounding;
the inner ring flange comprises an inner ring flange plate, a radial body and a first annular clamping groove, wherein the radial body and the first annular clamping groove are respectively arranged on two sides of the inner ring flange plate, and the bearing inner ring is arranged on the radial body; the inner ring winding comprises an inner ring coil and an inner ring framework made of non-metal materials, the inner ring coil is arranged in a gap between the inner ring framework and the inner ring shielding case, and the inner ring framework is arranged on the first annular clamping groove;
the outer ring flange comprises an outer ring flange plate; a through hole is formed in the middle of the outer ring flange plate, and a step groove is formed in the periphery of the through hole; a second annular clamping groove is formed in the outer ring flange plate, and the second annular clamping groove and the step groove are located on the same side of the outer ring flange plate; the end face of the bearing outer ring is tightly attached to the step groove, the outer ring winding comprises an outer ring coil and an outer ring framework made of non-metal materials, the outer ring coil is arranged in a gap between the outer ring framework and the outer ring shielding cover, and the outer ring framework is arranged on the second annular clamping groove.
2. The wireless power transfer slip ring of claim 1, wherein the shield is metallic.
3. The wireless power transfer slip ring of claim 2, wherein the shield is aluminum.
4. An electrical device comprising a wireless power transfer slip ring according to any of claims 1 or 2.
5. The electrical apparatus of claim 4, comprising electronics mounted on the wireless power transfer slip ring to enable grounding of the electronics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284806.3A CN111371193B (en) | 2020-04-13 | 2020-04-13 | Wireless power transmission collector ring and electrical equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284806.3A CN111371193B (en) | 2020-04-13 | 2020-04-13 | Wireless power transmission collector ring and electrical equipment |
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| Publication Number | Publication Date |
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| CN111371193A CN111371193A (en) | 2020-07-03 |
| CN111371193B true CN111371193B (en) | 2021-11-16 |
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| CN202010284806.3A Active CN111371193B (en) | 2020-04-13 | 2020-04-13 | Wireless power transmission collector ring and electrical equipment |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998872B (en) * | 2020-07-26 | 2022-02-01 | 哈尔滨理工大学 | Electrified coil magnetoelectric encoder and angle value temperature drift suppression method thereof |
| CN112564303B (en) * | 2020-12-15 | 2023-09-26 | 重庆前卫无线电能传输研究院有限公司 | Sleeve type wireless power transmission coupling mechanism |
| CN112583126B (en) * | 2020-12-15 | 2023-09-26 | 重庆前卫无线电能传输研究院有限公司 | Nested wireless energy signal synchronous transmission device with slip ring |
| CN112600311B (en) * | 2020-12-15 | 2023-06-30 | 重庆前卫无线电能传输研究院有限公司 | Nested wireless energy signal synchronous transmission device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645617A (en) * | 2009-08-26 | 2010-02-10 | 中国海洋石油总公司 | Slip ring |
| CN205303909U (en) * | 2015-12-30 | 2016-06-08 | 成都工业学院 | Ultra -thin radar collector ring |
| CN106532970A (en) * | 2016-12-01 | 2017-03-22 | 上海思岚科技有限公司 | Wireless power transmission slip ring |
| CN108964286A (en) * | 2018-08-17 | 2018-12-07 | 天津工业大学 | A kind of electric slip ring of high-power Dynamic Coupling wireless power transmission |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019030089A (en) * | 2017-07-27 | 2019-02-21 | Tdk株式会社 | Coil unit, and power transmission device, power reception device, and wireless power transmission system using coil unit |
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2020
- 2020-04-13 CN CN202010284806.3A patent/CN111371193B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645617A (en) * | 2009-08-26 | 2010-02-10 | 中国海洋石油总公司 | Slip ring |
| CN205303909U (en) * | 2015-12-30 | 2016-06-08 | 成都工业学院 | Ultra -thin radar collector ring |
| CN106532970A (en) * | 2016-12-01 | 2017-03-22 | 上海思岚科技有限公司 | Wireless power transmission slip ring |
| CN108964286A (en) * | 2018-08-17 | 2018-12-07 | 天津工业大学 | A kind of electric slip ring of high-power Dynamic Coupling wireless power transmission |
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| CN111371193A (en) | 2020-07-03 |
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