CN108667157A - A kind of magnetic column type coupling device for slewing wireless power - Google Patents
A kind of magnetic column type coupling device for slewing wireless power Download PDFInfo
- Publication number
- CN108667157A CN108667157A CN201810601337.6A CN201810601337A CN108667157A CN 108667157 A CN108667157 A CN 108667157A CN 201810601337 A CN201810601337 A CN 201810601337A CN 108667157 A CN108667157 A CN 108667157A
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- China
- Prior art keywords
- coil
- magnetic core
- primary coil
- magnetic
- secondary coil
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Classifications
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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
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- 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
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
The present invention provides a kind of magnetic column type coupling devices for slewing wireless power, including for electromagnet core and power supply coil, described includes primary side magnetic core for electromagnet core, the power supply coil includes primary coil and secondary coil, the primary side magnetic core is pot magnetic core, the primary coil is wound in the magnetic tank of pot magnetic core, the magnetic tank of the pot magnetic core is in barrel-shaped, the secondary coil is wound in the support cylinder being sleeved on the newel of pot magnetic core, the support cylinder is fixedly connected with the rotating shaft, the position of the primary coil and secondary coil is corresponding, there are air gap distances between the primary coil and secondary coil, the primary coil is coaxial nested solenoid coil with secondary coil.The present invention can realize that the wireless transmission of stable electric power, receiving coil rotary work, receiving terminal significantly reduce the weight of round end without magnetic core, avoid influence of the magnetic core to rotary shaft in 360 ° of rotating ranges.
Description
Technical field
The invention belongs to wireless power technical field, more particularly, to a kind of magnetic for slewing wireless power
Pillar coupling device.
Background technology
Slewing can not be directly powered using cable mode, because cable can be wound when its rotary work,
And then service cable is destroyed, lead to power failure.Slewing relies primarily on conducting slip ring and is powered at present, and slip ring uses
Brush contact mode is powered, therefore is worked long hours, and contact surface serious wear, contact resistance becomes larger, and it is existing to generate hot-spot
As being detached from so as to cause poor contact or contact, greatly reducing the reliability of slewing power supply, that reduces slip ring uses the longevity
Life may seriously lead to major accident, and replace slip ring, need to consume larger cost.
Invention content
In view of this, the invention is directed to a kind of magnetic column type coupling device for slewing wireless power,
The wireless transmission of stable electric power can be realized in 360 ° of rotating ranges, receiving coil rotary work, receiving terminal is without magnetic core, significantly
The weight for alleviating round end avoids influence of the magnetic core to rotary shaft.
In order to achieve the above objectives, the technical solution of the invention is realized in：
A kind of magnetic column type coupling device for slewing wireless power, including for electromagnet core and power supply coil, it is described
Include primary side magnetic core for electromagnet core, the power supply coil includes primary coil and secondary coil, and the primary side magnetic core is
Pot magnetic core, the primary coil are wound in the magnetic tank of pot magnetic core, and the magnetic tank of the pot magnetic core is in barrel-shaped, institute
The secondary coil stated is wound in the support cylinder being sleeved on the newel of pot magnetic core, and the support cylinder is solid with rotation axis
The position of fixed connection, the primary coil and secondary coil is corresponding, exists between the primary coil and secondary coil
Air gap distance, the primary coil and secondary coil are coaxial nested solenoid coil.
Further, the primary coil pastes the magnetic tank wall coiling of the pot magnetic core, and the primary coil size is more than
The secondary coil size.
Further, the primary coil pastes the newel coiling of the pot magnetic core, and the primary coil size is less than
The secondary coil size.
Further, the primary coil and secondary coil location swap form rotary power supply device and power for fixing device
Pattern.
Further, the air gap distance between the primary coil and secondary coil is 0.1mm-1m.
Further, the primary coil and secondary coil are fixed on by glue on pot magnetic core and support cylinder.
Further, the support cylinder is made of nonmetallic materials PLA, ABS or PMMA.
Compared with the existing technology, a kind of magnetic column type for slewing wireless power described in the invention couples dress
It sets and has the advantage that：
A kind of magnetic column type coupling device for slewing wireless power of the present invention, such device avoid biography
Unite slip ring power supply mode present in contact wear it is serious, poor reliability, it is of high cost the problems such as, have it is non-contact, securely and reliably
The characteristics of, have and be more widely applied foreground, is suitable for wind-driven generator, satellite, radar, oil drilling, lifting airscrew
It is needed to the occasion of rotation power supply for electrical equipment etc. multiple.And designed coupling device, only transmitting terminal have magnetic core, receiving terminal
Only include single coil, greatly alleviates the weight of receiving terminal, while power supply coil uses solenoid coil nested form, tool
There is the higher coefficient of coup, and coupling device, in rotary course, magnetic core immobilizes, so each parameter stability of coupling device is not
Become, the smooth transport of system power can be effectively ensured；This device suitability is high, is widely used.
Description of the drawings
The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1 is a kind of magnetic column type coupling device for slewing wireless power described in the invention embodiment
Dimensional structure diagram；
Fig. 2 is a kind of magnetic column type coupling device for slewing wireless power described in the invention embodiment
The one of which arrangement figure of primary coil and secondary coil；
Fig. 3 is a kind of magnetic column type coupling device for slewing wireless power described in the invention embodiment
Another arrangement figure of primary coil and secondary coil；
Fig. 4 is primary coil and secondary coil location swap figure in Fig. 2；
Fig. 5 is primary coil and secondary coil location swap figure in Fig. 3；
Fig. 6 is induction type circuit diagram；
Fig. 7 is string-string resonance topological (S-S types) figure；
Fig. 8 is string-and resonance topological (S-P types) figure；
Fig. 9 is simultaneously-string resonance topological (P-S types) figure；
Figure 10 is simultaneously-and resonance topological (P-P types) figure；
Figure 11 is LCL- string resonance topological (LCL-S types) figures；
Figure 12 is LCL- and resonance topological (LCL-P types) figure；
Figure 13 is string-LCL resonance topologicals (S-LCL types) figure；
Figure 14 is simultaneously-LCL resonance topologicals (P-LCL types) figure；
Figure 15 is LCC- string resonance topological (LCC-S types) figures；
Figure 16 is LCC- and resonance topological (LCC-P types) figure；
Figure 17 is string-LCC resonance topologicals (S-LCC types) figure；
Figure 18 is simultaneously-LCL resonance topologicals (P-LCC types) figure；
Figure 19 is LCL-LCL resonance topologicals (LCL-LCL types) figure；
Figure 20 is LCC-LCC resonance topologicals (LCC-LCC types) figure；
Figure 21 is single primary side mode of resonance circuit diagram；
Figure 22 is single secondary side mode of resonance circuit diagram；
Figure 23 is that circuit topological structure derives relational graph with coupling device.
Reference sign：
1- primary side magnetic cores, 11- magnetic tanks, 12- newels, 2- primary coils, 3- secondary coils, 4- support cylinders.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
As shown in Figure 1, a kind of magnetic column type coupling device for slewing wireless power, including for electromagnet core and power supply
Coil, described for electromagnet core includes primary side magnetic core 1, and the power supply coil includes primary coil 2 and secondary coil 3, described
Primary side magnetic core 1 be pot magnetic core, the primary coil 2 is wound in the magnetic tank 11 of pot magnetic core 1, the pot magnetic core
Magnetic tank 11 in barrel-shaped, the secondary coil 3 is wound in the support cylinder 4 on the newel 12 for being sleeved on pot magnetic core,
The support cylinder 4 is fixedly connected with the rotating shaft, and the position of the primary coil 2 and secondary coil 3 is corresponding, described
There are air gap distance between primary coil 2 and secondary coil 3, the primary coil 2 and secondary coil 3 are coaxial nested spiral shell
Spool coil.
This device is powered for slewing, and the relative position of primary coil and secondary coil has following two situations：
The first：As shown in Fig. 2, primary coil 2 pastes the tank skin coiling of the magnetic tank 11 of the pot magnetic core, the primary side line
It encloses 2 sizes and is more than 3 size of the secondary coil.
Second：As shown in figure 3, primary coil 2 pastes 12 coiling of newel of the pot magnetic core, the primary coil 2
Size is less than 3 size of the secondary coil.
Primary coil and secondary coil location swap form rotation power supply unit and power for fixed equipment, primary coil and pair
The relative position of sideline circle has following two situations：
The first：As shown in figure 4, in interchange graph 2 primary coil 2 and secondary coil 3 position.
Second：As shown in figure 5, in interchange graph 3 primary coil 2 and secondary coil 3 position.
Primary coil and secondary coil realize that the power supply unit powered or rotated to slewing is around to position difference
Fixing device power supply both of which.
The distance between primary coil 2 and secondary coil 3 are referred to as air gap distance, between primary coil 2 and secondary coil 3
Air gap distance can be 0.1mm-1m, air gap distance is smaller, and the coefficient of coup is bigger.
Primary coil 2 and secondary coil 3 are fixed on by glue on pot magnetic core and support cylinder 4.
Support cylinder 4 is made of nonmetallic materials PLA, ABS or PMMA.
Coupling device designed by the present invention is applicable not only to induction type wireless power, could be applicable to any type magnetic coupling
Resonance type wireless power supply is closed, and is suitable for any type resonant circuit topology, such as string-string resonance topological (S-S types),
String-and resonance topological (S-P types), and-string resonance topological (P-S types), and-and resonance topological (P-P types), LCL- go here and there resonance topological
(LCL-S types), LCL- and resonance topological (LCL-P types), string-LCL resonance topologicals (S-LCL types), and-LCL resonance topologicals (P-
LCL type), LCC- goes here and there resonance topological (LCC-S types), LCC- and resonance topological (LCC-P types), string-LCC resonance topologicals (S-LCC
Type), and-LCL resonance topologicals (P-LCC types), LCL-LCL resonance topologicals (LCL-LCL types), LCC-LCC resonance topologicals (LCC-
LCC types), equally the coupling device designed by the present invention applies also for the topological structure of unilateral resonance, and physical circuit topology is as schemed
Shown in 6- Figure 22.
In foregoing circuit topology, USFor the equivalent inversion source of system；RSFor inversion source equivalent internal resistance；R1, R2, R3, R4Respectively
The internal resistance value of inductance, R in corresponding topologyLFor system load；C0, C1, C2, C3Respectively corresponding resonance compensation capacitor.
Coupling device designed by the present invention meets mutual inductance computation modelM is coupling device mutual inductance；K is coupling
Collaboration number, calculation formulaL1, L2 are respectively former and deputy sideline turn coil inductance value.
Usually using the quality factor q 1 and Q2 of the coefficient of coup k of coupling device and original secondary coil as parametric variable,
Analysis is optimized come the output power to wireless power supply system, efficiency.The changing rule of system effectiveness is generally：The product of coil
Prime factor Q1, Q2 is higher, and k is bigger, and efficiency is higher.The efficiency or output power formula of system can be derived by by topology,
Then coupling device can be optimized according to theoretical analysis result, specific relationship block diagram is as shown in figure 23.Wherein
The quality factor of former and deputy sideline circle be denoted as respectively for：Wherein, ω is system work angular frequency, ω
=2 π f, f are system frequency.
Relevant parameter is：
Coupling device parameter variation range：
The air gap distance variation range of such coupling device is：0.1mm-1m；
Coefficient of coup k variation ranges：0.001-0.99；
Applicable system operating frequency range：50Hz-20MHz；
Self-induction of loop L1, L2 variation range:1μH-5mH.
It is applicable in loading range：0.1Ω-1000Ω.
Quality factor q parameter area：1-50000.
This coupling device suitability is high, is widely used.
The course of work of the present invention can be generally described as follows：Primary coil 2 is given to be powered first, primary coil 2 generates after energization
Magnetic field loop primary coil 2 is wrapped in by pot magnetic core in, if the electric current of primary coil 2 changes at this time, just
Induced voltage can be generated in secondary coil 3, energy, signal etc. are coupled to secondary coil 3 to realize.
The present invention can be used for the wireless power of fan paddle-changing system, can substitute original slip ring, will via coupling device
Electric energy gives the pitch-controlled system of wind turbine in a non-contact manner.Coupling device outer coil connects inversion as primary coil at this time
Source exports, and as energy supply end, inner coil connects fan paddle-changing system as secondary coil, as energy pair side.Magnetic core is only
Canned magnetic core including primary side, requires simultaneously, and secondary coil is rotated synchronously with blower fan main shaft, and one is connected to by mechanical structure
Rise, former limit part is fixed, i.e., primary side magnetic core and coil are fixed, can by associated mechanical structure be fixed to pedestal or
On shell.
It present invention can equally be used in slewing and give fixed equipment wireless power, such as applied to space flights such as satellites
Device.When being powered to spacecraft main body accumulator in view of solar cell windsurfing, solar cell windsurfing and space
Aircraft body, which exists, to be relatively rotated, therefore coupling device designed by the present invention may be used.Wherein solar cell windsurfing is
Electric energy transmitting terminal connects coupling device primary coil, can carry out 360 degree rotation in space.Then by coupling device by electric energy
It is transferred to secondary coil, secondary coil is connected with spacecraft main body accumulator, to realize slewing to fixing device
Wireless power.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection domain within.
Claims (7)
1. a kind of magnetic column type coupling device for slewing wireless power, it is characterised in that：Including for electromagnet core and power supply
Coil, described for electromagnet core includes primary side magnetic core (1), and the power supply coil includes primary coil (2) and secondary coil
(3), the primary side magnetic core (1) is pot magnetic core, and the primary coil (2) is wound on the magnetic tank (11) of pot magnetic core (1)
Interior, the magnetic tank (11) of the pot magnetic core is in barrel-shaped, and the secondary coil (3) is wound on the center for being sleeved on pot magnetic core
In the support cylinder made of nonmetallic materials (4) on column (12), the support cylinder (4) is fixedly connected with the rotating shaft,
The primary coil (2) is corresponding with the position of secondary coil (3), between the primary coil (2) and secondary coil (3)
There are air gap distance, the primary coil (2) is coaxial nested solenoid coil with secondary coil (3).
2. a kind of magnetic column type coupling device for slewing wireless power according to claim 1, it is characterised in that：
The primary coil (2) pastes the tank skin coiling of the magnetic tank (11) of the pot magnetic core, and primary coil (2) size is more than described
Secondary coil (3) size.
3. a kind of magnetic column type coupling device for slewing wireless power according to claim 1, it is characterised in that：
The primary coil (2) pastes newel (12) coiling of the pot magnetic core, and primary coil (2) size is less than the secondary side
Coil (3) size.
4. a kind of magnetic column type coupling device for slewing wireless power according to claim 2 or 3, feature exist
In：It is fixing device powering mode that the primary coil (2) and secondary coil (3) location swap, which form rotary power supply device,.
5. a kind of magnetic column type coupling device for slewing wireless power according to claim 4, it is characterised in that：
Air gap distance between the primary coil (2) and secondary coil (3) is 0.1mm-1m.
6. a kind of magnetic column type coupling device for slewing wireless power according to claim 5, it is characterised in that：
The primary coil (2) and secondary coil (3) are fixed on by glue on pot magnetic core and support cylinder (4).
7. a kind of magnetic column type coupling device for slewing wireless power according to claim 6, it is characterised in that：
The support cylinder (4) is made of nonmetallic materials PLA, ABS or PMMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601337.6A CN108667157A (en) | 2018-06-12 | 2018-06-12 | A kind of magnetic column type coupling device for slewing wireless power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810601337.6A CN108667157A (en) | 2018-06-12 | 2018-06-12 | A kind of magnetic column type coupling device for slewing wireless power |
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| CN108667157A true CN108667157A (en) | 2018-10-16 |
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| CN201810601337.6A Pending CN108667157A (en) | 2018-06-12 | 2018-06-12 | A kind of magnetic column type coupling device for slewing wireless power |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660008A (en) * | 2019-02-21 | 2019-04-19 | 南京达斯琪数字科技有限公司 | A kind of wireless power supply and electronic equipment |
| CN109888893A (en) * | 2019-02-28 | 2019-06-14 | 西安交通大学 | A kind of two-freedom WPT loop construction |
| CN112231988A (en) * | 2020-12-14 | 2021-01-15 | 中国人民解放军海军工程大学 | Anti-offset parameter optimization method and system for IPT system and computer equipment |
| CN113937906A (en) * | 2021-10-29 | 2022-01-14 | 中国石油天然气集团有限公司 | Integrated inductive coupling mechanism based on LCC energy transmission topology |
| CN117727542A (en) * | 2023-12-18 | 2024-03-19 | 青岛科技大学 | Butt-joint type magnetic coupling structure for underwater wireless energy transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012105454A (en) * | 2010-11-10 | 2012-05-31 | Sharp Corp | Non-contact power supply system |
| CN107658996A (en) * | 2017-11-16 | 2018-02-02 | 中国电子科技集团公司第三十八研究所 | A kind of rotary non-contact electric energy transmission device |
-
2018
- 2018-06-12 CN CN201810601337.6A patent/CN108667157A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012105454A (en) * | 2010-11-10 | 2012-05-31 | Sharp Corp | Non-contact power supply system |
| CN107658996A (en) * | 2017-11-16 | 2018-02-02 | 中国电子科技集团公司第三十八研究所 | A kind of rotary non-contact electric energy transmission device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660008A (en) * | 2019-02-21 | 2019-04-19 | 南京达斯琪数字科技有限公司 | A kind of wireless power supply and electronic equipment |
| CN109888893A (en) * | 2019-02-28 | 2019-06-14 | 西安交通大学 | A kind of two-freedom WPT loop construction |
| CN112231988A (en) * | 2020-12-14 | 2021-01-15 | 中国人民解放军海军工程大学 | Anti-offset parameter optimization method and system for IPT system and computer equipment |
| WO2022127462A1 (en) * | 2020-12-14 | 2022-06-23 | 中国人民解放军海军工程大学 | Ipt system anti-offset parameter optimization method and system and computer device |
| CN113937906A (en) * | 2021-10-29 | 2022-01-14 | 中国石油天然气集团有限公司 | Integrated inductive coupling mechanism based on LCC energy transmission topology |
| CN117727542A (en) * | 2023-12-18 | 2024-03-19 | 青岛科技大学 | Butt-joint type magnetic coupling structure for underwater wireless energy transmission |
| CN117727542B (en) * | 2023-12-18 | 2024-05-07 | 青岛科技大学 | Butt-joint type magnetic coupling structure for underwater wireless energy transmission |
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Application publication date: 20181016 |