CN106783064A - A kind of contactless electric slip ring - Google Patents
A kind of contactless electric slip ring Download PDFInfo
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- CN106783064A CN106783064A CN201611065228.4A CN201611065228A CN106783064A CN 106783064 A CN106783064 A CN 106783064A CN 201611065228 A CN201611065228 A CN 201611065228A CN 106783064 A CN106783064 A CN 106783064A
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- magnetic core
- electric capacity
- electrode
- magnetic
- slip ring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/143—Inductive couplings for signals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
- H01F2038/146—Inductive couplings in combination with capacitive coupling
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manipulator (AREA)
Abstract
The present invention relates to a kind of contactless electric slip ring, including fixed part and rotating part；The fixed part includes：At least two groups magnetic cores that are positioned opposite and there is air gap each other, for the primary coil of transimission power, for the electric capacity fixed part electrode of transmission signal, the structural member for carrying said elements in the fixed part；The rotating part includes：For the secondary coil of transimission power, for the electric capacity rotating part electrode of transmission signal, the fixture for carrying said elements in the rotating part；Keep being relatively fixed to ensure stable magnetic field between the magnetic core, the primary coil is wound on the magnetic core, the primary coil is in the space that the magnetic core is surrounded with the secondary coil, between the air gap makes the fixture of carrying secondary coil can extend into the magnetic core.Stable magnetic field of the present invention, laser propagation effect is good, it is adaptable to rotate the contactless power and signal transmission of occasion.
Description
Technical field
The invention belongs to field of electromechanical integration, specifically, being related to a kind of contactless electric slip ring, it is adaptable to rotate occasion
Contactless power and signal transmission.
Background technology
Rotary joint is very common in modern Mechatronic Systems while also play huge effect, such as industrial robot,
Radar and CCTV camera etc..At present, in rotary joint using it is most be cable and slip ring, wherein：Former limit rotation
Turn freely rotating for joint, while long-term mechanical twisting also causes that cable is easily aging；The multiplex brush of the latter is conductive, exists easily
The shortcomings of abrasion, safe operation cycle is short.And contactless power and signal transmission technology causes that safer rotary joint is led
Electric form is possibly realized.
Early in 1996, the Gwyn Roberts team in the U.S. just existed《A Contactless Transfer Device
for Power and Data》In propose it is a kind of for power and the contactless electric slip ring of data transfer.So far state is had
Inside and outside multiple team have carried out the research of related fields.Such as Konstantinos D.Papastergiou exist《An
Airborne Radar Power Supply With Contactless Transfer of Energy-Part I:
Rotating Transformer》In coil distribution mode is contrasted, Yan Meicun etc. exists《Contactless field power supply
Resonance compensation is analyzed》The different compensation ways of drive circuit and rectification circuit to electric slip ring are studied and contrasted.
In order to improve the coefficient of coup, domestic outer portion research team is studied on core structure, such as Ali
Abdolkhani etc. exists《Improved Coupling Design of Contactless Slipring for Rotary
Applications》In the structure of U-shaped magnetic and E-type magnetic core is optimized, to improve magnetic induction intensity.
Number of patent application is 201610046691.8 Chinese invention application, discloses that a kind of axial half section LL types are non-to be connect
Power supply slip ring is touched, air gap is reduced with LL type magnetic cores, improve magnetic conductivity.In terms of the selection of magnetic core, due to pot core into
This is higher and is unfavorable for radiating, using multiple U-shaped magnetic cores or the magnetic core generation of other shapes more than powerful contactless electric slip ring
Replace, with the magnetic core of L-type reducing the air gap between magnetic core if patent CN201610046691.8.But it is that non-pot core is rotating
During due between magnetic core and magnetic core relative position change, cause magnetic field unstable.Therefore, if in contactless slip ring
Design in ensure that being relatively fixed for magnetic core, the electrical efficiency and stability to slip ring will be significantly improved.
The content of the invention
To realize object above, the invention provides a kind of contactless electric slip ring, with contactless power transmission with it is non-
The connected mode of contact signal transmission, improves that magnetic field in the rotation process that above-mentioned existing noncontact slip ring is present is unstable, coupling
The low problem of syzygy number.
To achieve the above object, the present invention uses following technical scheme：
The present invention provides a kind of contactless electric slip ring, including fixed part and rotating part；
The fixed part includes：At least two groups magnetic cores that are positioned opposite and there is air gap each other, for transimission power
Primary coil, for the electric capacity fixed part electrode of transmission signal, the structure for carrying said elements in the fixed part
Part；
The rotating part includes：For the secondary coil of transimission power, for the electric capacity rotating part electrode of transmission signal,
Fixture for carrying said elements in the rotating part；Wherein：
Keep being relatively fixed between at least two groups magnetic cores positioned opposite and there is air gap each other, to ensure that magnetic field is steady
It is fixed；Primary coil is wound on magnetic core, and secondary coil is bonded or is wrapped on fixture, and primary coil and secondary coil are in
In the magnetic core encircling space positioned opposite of position；Secondary coil is derived power by power output line, the air gap between magnetic core
Between the fixture of carrying secondary coil is can extend into position magnetic core positioned opposite.
Preferably, at least two groups magnetic cores positioned opposite and there is air gap each other are non-contacting or phase mutual connection
Tactile part.
Preferably, the holding is relatively fixed and refers to：Magnetic core is bonded on structural member, or magnetic core by interference fits or
Interference fit is stuck on structural member.
It is highly preferred that the magnetic core selects U-shaped magnetic core, E-type magnetic core；Or, the magnetic core selects the magnetic core of a side opening,
Will the arm of magnetic core side grind away a part, it is ensured that while secondary coil gos deep into magnetic core encircling space, at least two groups phases
That can be contacted with each other between the magnetic core arranged, to reduce the air gap in whole magnetic circuit, and then reduce magnetic resistance.
Preferably, in the electric capacity fixed part electrode, the outer surface arranging shielding layer of electric capacity rotating part electrode, or
The arranging shielding layer on structural member, fixture, to shield the magnetic field produced by the electric current on primary coil and secondary coil to letter
Number transmission interference.
It is highly preferred that the screen layer is arranged in electric capacity fixed part electrode, electric capacity rotation by the way of bonding or molding
On the outer surface of transfer part sub-electrode, or the structural member, fixture.
It is highly preferred that the screen layer is from a kind of in the magnetic conductivity of soft iron, silicon steel, permalloy soft magnetic materials high；
Or from the copper or aluminium of good conductivity.Under high frequency operating mode, because the magnetic field of alternation makes screen layer produce vortex, and it is vortexed existing
The effect of external magnetic field can be effectively canceled out as the magnetic field for producing,
Preferably, the first cable hole is provided with the structural member, for access power input line and signal input line, its
In：Power input line connects primary coil, signal input line connection electric capacity fixed part electrode.
It is highly preferred that the structural member is made of rigidity insulating materials high, to ensure carrying the same of secondary coil
When it is as thin as possible, to reduce two groups of magnetic core air gaps.
Preferably, the second cable hole is provided with the fixture, for sending out signals output line and power output line, its
In：Output line is connected with electric capacity rotating part electrode, and power output line is connected through the air gap between magnetic core with secondary coil.
It is highly preferred that the material that the fixture is used is FR-4.
Preferably, the primary coil and the secondary coil select solid conductor, Litz lines, Copper Foil or PCB windings；
The number of turn of former and deputy side winding is identical or different.
Preferably, magnetic core, primary coil and secondary coil constitute power section, electric capacity fixed part electricity at least described in two groups
Pole and electric capacity rotating part electrode collectively constitute signal section i.e. electric capacity, and the biography of low and high level is realized by the discharge and recharge to electric capacity
Pass；Electric capacity fixed part electrode, electric capacity rotating part electrode are ring-type and electric capacity fixed part electrode sleeve is in electric capacity rotating part
Outside sub-electrode；
The arrangement of the power section and signal section is radial arrangement, and power section is enclosed within the outside of signal section
Or signal section is enclosed within the outside of power section；Or, the arrangement of power section and signal section is axial arranged.
Preferably, the fixed part overlaps with the axis of the rotating part, and the fixed part passes through axle with the rotating part
Hold connection.
Compared with prior art, the present invention has following beneficial effect：
The all permeability magnetic materials of the present invention are that a group magnetic core positioned opposite is fixed, therefore avoid that typical high power is non-to be connect
Touch magnetic core dislocation in slip ring rotation process.The magnetic conductance of whole slip ring is stablized relatively, and power transmission during rotation is more stablized, while
The laser propagation effect of power will not be influenceed by rotating speed.Stable magnetic field of the present invention, laser propagation effect is good, it is adaptable to rotate the non-of occasion
Contact power and signal transmission.
Brief description of the drawings
The detailed description made to non-limiting example with reference to the following drawings by reading, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is annular contactless electric slip ring structural representation for the radial section of one embodiment of the invention；
In figure：101st, 102 is U-shaped magnetic core, and 103 is the structural member of fixed part, and 104 is the fixture of rotating part, and 105 is secondary
Level coil, 106 is primary coil, and 107 is electric capacity fixed part electrode, and 108 is electric capacity rotating part electrode, and 109 is that signal is defeated
Enter line, 110 is power input line, and 111 is output line, and 112 is power output line；
Fig. 2 is the contactless electric slip ring structural representation that the radial section of one embodiment of the invention is annular, wherein E types
Magnetic core is the E-type magnetic core of standard；
In figure：201st, 202 is E-type magnetic core, and 203 is the first bearing part, 204 consolidating for rotating part for the structural member of fixed part
Determine part i.e. the second bearing part, 205,215 is secondary coil, and 206,216 is primary coil, and 207 are for electric capacity fixed part electrode
First electrode, 208 is second electrode for electric capacity rotating part electrode, and 209 is signal input line, and 210 is power input line, 211
It is output line, 212 is power output line, and 217 is magnetic induction line；
Fig. 3 is the contactless electric slip ring structural representation that the radial section of one embodiment of the invention is annular, wherein U-shaped
Magnetic core is the U-shaped magnetic core by processing, and processing mode is that the arm of magnetic core side is ground away into a part；
In figure：301st, 302 is U-shaped magnetic core, and 303 is the first bearing part, 304 consolidating for rotating part for the structural member of fixed part
Determine part i.e. the second bearing part, 305 is secondary coil, and 306 is primary coil, and 307 is first electrode for electric capacity fixed part electrode,
308 is second electrode for electric capacity rotating part electrode, and 309 is signal input line, and 310 is power input line, and 311 is signal output
Line, 312 is power output line；
Fig. 4 is the contactless electric slip ring structural representation that the radial section of one embodiment of the invention is annular, wherein：Work(
Rate hop and signal transmission are partially radially arranged；
In figure：401st, 402 is U-shaped magnetic core, and 403 is the first bearing part, 404 consolidating for rotating part for the structural member of fixed part
Determine part i.e. the second bearing part, 405 is secondary coil, and 406 is primary coil, and 407 is first electrode for electric capacity fixed part electrode,
408 is second electrode for electric capacity rotating part electrode, and 409 is signal input line, and 410 is power input line, and 411 is signal output
Line, 412 is power output line；
Fig. 5 is a kind of screen layer arrangement of the contactless electric slip ring of one embodiment of the invention,
In figure：501st, 502 is U-shaped magnetic core, and 503 is the first bearing part, 504 consolidating for rotating part for the structural member of fixed part
Determine part i.e. the second bearing part, 505 is secondary coil, and 506 is primary coil, and 507 is first electrode for electric capacity fixed part electrode,
508 is second electrode for electric capacity rotating part electrode, and 509 is signal input line, and 510 is power input line, and 511 is signal output
Line, 512 is power output line, and 513,514 is soft magnetic materials；
Fig. 6 is the screen layer arrangement of another contactless pad slip ring of one embodiment of the invention；
In figure：601st, 602 is U-shaped magnetic core, and 603 is the first bearing part, 604 consolidating for rotating part for the structural member of fixed part
Determine part i.e. the second bearing part, 605 is secondary coil, and 606 is primary coil, and 607 is first electrode for electric capacity fixed part electrode,
608 is second electrode for electric capacity rotating part electrode, and 609 is signal input line, and 610 is power input line, and 611 is signal output
Line, 612 is power output line, and 613,614 is soft magnetic materials.
Fig. 7 is the contactless electric slip ring structural representation that the radial section of one embodiment of the invention is annular, has used 4
The U-shaped magnetic core of group；
In figure：701st, 702,713,714 is U-shaped magnetic core, and 703 is the first bearing part for the structural member of fixed part, and 704 is rotation
The fixture of transfer part is the second bearing part, and 705,715 is secondary coil, and 706,716 is primary coil, and 707 is electric capacity fixed part
Sub-electrode is first electrode, and 708 is second electrode for electric capacity rotating part electrode, and 709 is signal input line, and 710 is that power is defeated
Enter line, 711 is output line, and 712 is power output line.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment one：
As shown in figure 1, a kind of radial section is the contactless electric slip ring of annular, including：Fixed part and rotating part, it is fixed
Portion and rotating part are connected by bearing, and fixed part overlaps with the axis of rotating part；
The fixed part includes：The U-shaped magnetic core 101,102 that two groups of relative positions are fixed, primary coil 106, electric capacity is fixed
Partial electrode 107 is first electrode, structural member 103 i.e. the of the fixed part for carrying primary coil 106 and first electrode 107
One bearing part；
The rotating part includes：Secondary coil 105, electric capacity rotating part electrode 108 is second electrode, for carrying secondary
The fixture 104 of the rotating part of coil 105 and second electrode 108 is the second bearing part；
Two groups of magnetic core 101, primary coil 106 and secondary coil 105 composition power sections, electric capacity fixed part electrode 107,
The composition signal section of electric capacity rotating part electrode 108 is electric capacity；
Capacitance electrode is that first electrode 107, second electrode 108 use cyclic structure, with ensure signal transmission effect not with
Rotate and change；Primary coil 106 is wound on U-shaped magnetic core 101, and secondary coil 105 is bonded or is wrapped in the second bearing part 104
On, and primary coil 106 and secondary coil 105 be in the spaces that two groups of U-shaped magnetic cores 101,102 are surrounded；Two groups of U-shaped magnetic cores
101st, in having air gap between 102 to ensure that the second bearing part 104 can extend into the spaces that two groups of U-shaped magnetic cores 101,102 are surrounded.
Further, the secondary coil 105 is derived power by power output line 112, and the air gap between magnetic core makes
Between the fixture and power output line 112 of carrying secondary coil can extend into position magnetic core positioned opposite.
As one preferred embodiment, the primary coil 106 and the secondary coil 105 use copper stranded conductor to reduce
Kelvin effect, so as to reduce coil heating.
As one preferred embodiment, cable hole is provided with first bearing part 103, it is defeated for access power
Enter line 110, signal input line 109；Cable hole is provided with second bearing part 104, for sending out signals output line 111
With power output line 112；
Wherein：The power input line 110 connects primary coil 106, the connection first electrode of the signal input line 109
107, the output line 111 is connected with second electrode 108, the power output line 112 through two groups of U-shaped magnetic cores 101,
Air gap between 102 is connected with secondary coil 105.
Further, the power output line 112 is used by the part of two groups of U-shaped magnetic cores 101,102 air gaps and applies copper
Mode, to reduce volume shared by wire so that air gap can be made it is smaller.
As one preferred embodiment, second bearing part 104 is made of rigidity insulating materials high, to ensure
It is as thin as possible while secondary coil is carried, to reduce the air gap between two groups of U-shaped magnetic cores 101,102.
As one preferred embodiment, U-shaped magnetic core 101,102 described in two groups is non-contacting or contacts with each other；U-shaped magnetic
Core 101,102 is bonded on the first bearing part 103；Or be stuck in U-shaped magnetic core 101,102 by interference fits or interference fit
On first bearing part 103.
Alternating current is input on primary coil 106 by power input line 110, the magnetic field of change is produced, in this
The induced-current of alternation, the electric current is produced to pass through power output on secondary coil 105 in the magnetic field of change due to electromagnetic induction
To external loading, so as to realize the transmission of power, magnetic core 101,102 is used to constrain magnetic flux, improves the degree of coupling output of line 112, from
And bigger induced-current is produced on secondary coil 105；By signal input line 109 by low and high level signal transmission to electric capacity
Fixed part electrode 107, output end judges the low and high level of input by the discharge and recharge of electric capacity, so as to realize the transmission of signal.By
Fixed part is mutually not in contact with each other with rotating part when work, so being achieved that the noncontact of power and signal when rotating part is rotated
Transmission.
Embodiment two：
As shown in Fig. 2 a kind of radial section is the contactless electric slip ring of annular, its building block and building block it
Between annexation it is identical with embodiment one, compared to embodiment one, difference is：Substituted with two groups of E-type magnetic cores 201,202 real
Apply in the two groups of U-shaped magnetic cores 101,102 in example one, and same group of magnetic core 201 (or 202) two groups of primary coils 206,216 (or
Secondary coil 205,215) winding direction conversely, by taking E-type magnetic core 201 as an example, magnetic induction line 217 is by the center pillar of E-type magnetic core 201,
The center pillar of E-type magnetic core 201 is returned to by the center pillar of E-type magnetic core 202, the two side arms of E-type magnetic core 202, the two side arms of E-type magnetic core 201.At the beginning of two groups
Level coil 206,216 and two groups of secondary coils 205,215 can realize more powerful transmission under same volume.
Embodiment three：
As shown in figure 3, a kind of radial section is the contactless electric slip ring of annular, its building block and building block it
Between annexation it is identical with embodiment one；Compared to embodiment one, difference is：
Using the two groups of U-shaped magnetic cores 101,102 in two groups of U-shaped magnetic cores 301,302 alternate embodiments one by processing, plus
Work mode is that the arm of two groups of U-shaped magnetic cores 301,302 sides is ground away into a part respectively, makes two groups of magnetic cores 301,302 sides
Arm can be close to, have air gap between the arm of opposite side, so that the second bearing part 304 stretches into what two groups of U-shaped magnetic cores 301,302 were surrounded
In space, the air gap of so whole magnetic strength line loop reduces, and effectively improves the magnetic conductivity of power train portion, and to EMI
Inhibition it is more preferable.
Example IV：
As shown in figure 4, a kind of radial section is the contactless electric slip ring of annular, its building block and building block it
Between annexation it is identical with embodiment one；Compared to embodiment one, difference is：
Power section (including two groups of U-shaped magnetic cores 401,402, primary coil 406 and secondary coil 405) and signal section
(i.e. electric capacity, including first electrode 407, second electrode 408) is axial arranged, it is adaptable to radial space is smaller and axial space compared with
Big occasion.Because the leakage field of power section is concentrated at air gap, air gap from signal transmission part farther out, therefore power transmission portion
Divide smaller to the interference of signal transmission part.
Embodiment five：
As shown in figure 5, a kind of contactless electric slip ring, annexation and reality between its building block and building block
Apply example one identical；Compared to embodiment one, difference is：
It is respectively that second electrode 508, first electrode 507 are wrapped up and played by capacitance electrode with soft magnetic materials 513,514
Shielding action, to reduce interference of the power train portion to signal transmission.
As one preferred embodiment, the soft magnetic materials 513,514 is pasted and the electricity of second electrode 508, first respectively
The surface of pole 507, or be separately molded on the second bearing part 504, the first bearing part 503.
Embodiment six：
As shown in fig. 6, a kind of contactless electric slip ring, annexation and reality between its building block and building block
Apply example one identical；Compared to embodiment one, difference is：
With soft magnetic materials 613,614 respectively by the first bearing part 603, the second bearing part 604 positioned at first electrode 607,
Portion envelops between second electrode 608 and two groups of U-shaped magnetic cores 601,602 get up, and can effectively reduce power train portion product
The interference of raw electromagnetic fields on both signal hop, and can effectively reduce axis heating.
As one preferred embodiment, the first bearing part is pasted or be molded in the soft magnetic materials 613,614 respectively
603rd, on the second bearing part 604.
Embodiment seven：
As shown in fig. 7, a kind of radial section is the contactless electric slip ring of annular, its building block and building block it
Between annexation it is identical with embodiment one；Compared to embodiment one, difference is：
4 groups of relatively-stationary U-shaped magnetic cores 701,702,713,714 have been used, wherein, positioned opposite, the magnetic of magnetic core 701,702
Core 713,714 is positioned opposite；2 groups of primary coils, 706,716 and 2 groups of secondary coils 705,715, wherein primary coil are used
706 and secondary coil 705 be in the space that U-shaped magnetic core 701,702 is surrounded, primary coil 716 and secondary coil 715 are in U
In the space that type magnetic core 713,714 is surrounded.This embodiment is applicable to the bigger occasion of transimission power.
The all permeability magnetic materials of the present invention are fixed, therefore avoid magnetic in typical high power noncontact slip ring rotation process
Core misplaces.The magnetic conductance of whole slip ring is stablized relatively, and power transmission during rotation is more stablized.The laser propagation effect of power will not simultaneously
Influenceed by rotating speed.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (10)
1. a kind of contactless electric slip ring, it is characterised in that including fixed part and rotating part；
The fixed part includes：At least two groups magnetic cores that are positioned opposite and there is air gap each other, for the first of transimission power
Level coil, for the electric capacity fixed part electrode of transmission signal, the structural member for carrying said elements in the fixed part；
The rotating part includes：For the secondary coil of transimission power, for the electric capacity rotating part electrode of transmission signal, it is used for
Carry the fixture of said elements in the rotating part；Wherein：
Keep being relatively fixed between at least two groups magnetic cores positioned opposite and there is air gap each other, to ensure stable magnetic field；
Primary coil is wound on magnetic core, and secondary coil is bonded or is wrapped on fixture, and primary coil and secondary coil are in position
In putting magnetic core encircling space positioned opposite；Secondary coil is derived power by power output line, and the air gap between magnetic core makes
Between the fixture of carrying secondary coil can extend into position magnetic core positioned opposite.
2. a kind of contactless electric slip ring according to claim 1, it is characterised in that：At least two groups positioned opposite and mutual
Between to there is the magnetic core of air gap be part that is non-contacting or contacting with each other.
3. a kind of contactless electric slip ring according to claim 1, it is characterised in that：The holding is relatively fixed and refers to：
Magnetic core is bonded on structural member, or magnetic core is stuck on structural member by interference fits or interference fit.
4. a kind of contactless electric slip ring according to claim 3, it is characterised in that：The magnetic core selects U-shaped magnetic core, E
Type magnetic core；Or, the magnetic core from a side opening magnetic core, will the arm of magnetic core side grind away a part, it is ensured that secondary
While level coil gos deep into magnetic core encircling space, can be contacted with each other between at least two groups magnetic cores positioned opposite, it is whole to reduce
Air gap in magnetic circuit, and then reduce magnetic resistance.
5. a kind of contactless electric slip ring according to claim 1, it is characterised in that：In electric capacity fixed part electricity
Pole, the outer surface arranging shielding layer of electric capacity rotating part electrode, or the arranging shielding layer on structural member, fixture, to shield
The interference of the magnetic field produced by electric current on primary coil and secondary coil to signal transmission.
6. a kind of contactless electric slip ring according to claim 5, it is characterised in that：The screen layer is using bonding or mould
The mode of system is arranged in electric capacity fixed part electrode, the outer surface of electric capacity rotating part electrode, or on structural member, fixture.
7. a kind of contactless electric slip ring according to claim 5, it is characterised in that：The screen layer selects soft iron, silicon
It is a kind of in steel, the magnetic conductivity soft magnetic materials high of permalloy, or select copper or aluminium.
8. a kind of contactless electric slip ring according to claim any one of 1-7, it is characterised in that：Set on the structural member
The first cable hole is equipped with, for access power input line and signal input line, wherein：Power input line connects primary coil, letter
Number input line connection electric capacity fixed part electrode；The structural member is made of rigidity insulating materials high；
The second cable hole is provided with the fixture, for sending out signals output line and power output line, wherein：Signal output
Line is connected with electric capacity rotating part electrode, and power output line passes through the air gap and secondary coil phase between the magnetic core positioned opposite of position
Even.
9. a kind of contactless electric slip ring according to claim any one of 1-7, it is characterised in that：Magnetic at least described in two groups
Core, primary coil and secondary coil constitute power section, and electric capacity fixed part electrode and electric capacity rotating part electrode are collectively constituted
Signal section is electric capacity, and the transmission of low and high level is realized by the discharge and recharge to electric capacity；Electric capacity fixed part electrode, electric capacity rotation
Partial electrode is ring-type and electric capacity fixed part electrode sleeve is outside electric capacity rotating part electrode；
The arrangement of the power section and signal section be radial arrangement, power section be enclosed within signal section outside or
Signal section is enclosed within the outside of power section；Or, the arrangement of power section and signal section is axial arranged.
10. a kind of contactless electric slip ring according to claim any one of 1-7, it is characterised in that：The rotating part with
The axis of the fixed part overlaps.
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| CN201611065228.4A CN106783064B (en) | 2016-11-28 | 2016-11-28 | A kind of contactless electric slip ring |
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|---|---|---|---|
| CN201611065228.4A CN106783064B (en) | 2016-11-28 | 2016-11-28 | A kind of contactless electric slip ring |
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| CN106783064B CN106783064B (en) | 2019-02-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109411206A (en) * | 2018-12-03 | 2019-03-01 | 常州市维多视频科技有限公司 | Magnetic slip ring structure |
| CN114152928A (en) * | 2021-12-16 | 2022-03-08 | 上海广电通信技术有限公司 | Non-contact type rotating slip ring and photoelectric data transmission system of X-band marine solid continuous wave navigation radar |
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| CN204760167U (en) * | 2015-06-06 | 2015-11-11 | 江西力磁电子有限公司 | High -power high -frequency transformer |
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Cited By (3)
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| CN109411206A (en) * | 2018-12-03 | 2019-03-01 | 常州市维多视频科技有限公司 | Magnetic slip ring structure |
| CN109411206B (en) * | 2018-12-03 | 2024-05-31 | 常州市维多视频科技有限公司 | Magnetic slip ring structure |
| CN114152928A (en) * | 2021-12-16 | 2022-03-08 | 上海广电通信技术有限公司 | Non-contact type rotating slip ring and photoelectric data transmission system of X-band marine solid continuous wave navigation radar |
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| CN106783064B (en) | 2019-02-22 |
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