CN107332356A - Wireless power transmission coupling coil Optimization Design - Google Patents

Wireless power transmission coupling coil Optimization Design Download PDF

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Publication number
CN107332356A
CN107332356A CN201710687012.XA CN201710687012A CN107332356A CN 107332356 A CN107332356 A CN 107332356A CN 201710687012 A CN201710687012 A CN 201710687012A CN 107332356 A CN107332356 A CN 107332356A
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CN
China
Prior art keywords
coupling coil
coupling
job information
power transmission
wireless power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710687012.XA
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Chinese (zh)
Inventor
何照丹
肖经
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Hangsheng Electronic Co Ltd
Original Assignee
Shenzhen Hangsheng Electronic Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CN201710687012.XA priority Critical patent/CN107332356A/en
Publication of CN107332356A publication Critical patent/CN107332356A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

The invention discloses a kind of wireless power transmission coupling coil Optimization Design, comprise the following steps:Step S10, the job information based on coupling coil under normal electromagnetic coupled state sets up correspondence electro thermal coupling model;Step S20, electromagnetic coupled simulation is carried out based on electro thermal coupling model in physical field, obtains the correlation between electric current, heat and coupling coil structure in electro thermal coupling model;Step S30, optimizes the job information of the coupling coil based on correlation.The present invention optimizes adjustment by building model with the job information to coupling coil, to improve the coupling efficiency and stability of coupling coil.

Description

Wireless power transmission coupling coil Optimization Design
Technical field
The invention belongs to technical field, more particularly to a kind of wireless power transmission coupling coil Optimization Design.
Background technology
At present, wireless power transmission can be realized as transmission medium using electromagnetic field.According to the difference of principle, radio Can transmit can substantially be divided into three classes:The first is induction type, and this mode transimission power is big, but transmission is closer to the distance; Second is radiant type, and this mode directionality is good, long transmission distance, but influences big to periphery electromagnetic environment;The third is Resonant mode, this is a kind of emerging wireless power transmission mode, also known as magnet coupled resonant type wireless electric energy transmission technology.Which Larger distance can be transmitted under higher efficiency with larger power.Wherein, wireless power transmission coupling coil belongs to Three kinds, during electromagnetic coupled, often because the changes of magnetic field produced by electromagnetic coupled is with the working condition to coupling coil Impact, it is also possible to which size of current is influenceed, it is also possible to temperature is influenceed, to cause coupling coil in certain time model Enclose the low technical problem of internal efficiency.
Therefore, prior art is needed to be improved.
The content of the invention
It is a primary object of the present invention to propose a kind of wireless power transmission coupling coil Optimization Design, it is intended to pass through Build electrothermic model and adjustment is optimized with the job information to coupling coil, to improve the coupling efficiency and stably of coupling coil Property, reduce influence of the magnetic field for coupling coil in coupling process.
To realize above-mentioned technique effect, wireless power transmission coupling coil Optimization Design of the invention, including it is following Step:
Step S10, the job information based on coupling coil under normal electromagnetic coupled state sets up correspondence electro thermal coupling model;
Step S20, based on electro thermal coupling model physical field carry out electromagnetic coupled simulation, obtain electro thermal coupling model in electric current, Correlation between heat and coupling coil structure;
Step S30, optimizes the job information of the coupling coil based on correlation.
Preferably, in step slo, the job information includes coupling coil power bracket or flows through the electricity of coupling coil Flow scope.
Preferably, step is included after step S30:
Coupling efficiency of the coupling coil under normal electromagnetic coupled state after step S40, calculation optimization, and judge the coupling Whether efficiency is more than default efficiency;
Step S50, if being more than, regard the job information after optimization as routine work information.
Step S60, if being less than, return to step S10.
Preferably, the physical field includes the one or more of gravity, electric power and magnetic field force.
Preferably, step is included before the step S10:
Step S1, is powered to coupling coil, obtains job information when coupling coil is in normal electromagnetic coupled state.
Preferably, the step S30 includes step:
Step S31, confirms the minimum correlation of heat from each correlation;
Step S32, the job information of coupling coil is adjusted according to the correlation.
The invention has the advantages that:
1st, the Optimization Design of the present invention, the electrothermic model based on foundation, to obtain coupling coil in electromagnetic coupled mistake are passed through Job information when coupling efficiency is high in journey, and optimized with this, to improve coupling efficiency.
2nd, by the Optimization Design of the present invention, determine coupling coil when coupling efficiency is high during electromagnetic coupled Job information, to improve coupling stability.
Brief description of the drawings
Fig. 1 is the schematic flow sheet in first embodiment of the invention;
Fig. 2 is the schematic flow sheet in second embodiment of the invention;
Fig. 3 is the schematic flow sheet in third embodiment of the invention;
The refinement schematic flow sheet that Fig. 4 is step S30 in first embodiment of the invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
With reference to Fig. 1, Fig. 1 is the schematic flow sheet of first embodiment of the invention.
As shown in figure 1, the wireless power transmission coupling coil Optimization Design of the present invention, comprises the following steps:
Step S10, the job information based on coupling coil under normal electromagnetic coupled state sets up correspondence electro thermal coupling model;
In step slo, job information includes power bracket of the coupling coil under normal electromagnetic coupled state or flows through coupling The current range of coil;Normal electromagnetic coupled state representation is that coupling coil magnetic field intensity produced by after electric current reaches at least 5A/cm(Peace is per cm);Implementation can be that electro thermal coupling model is set up in the finite element software of terminal;What terminal was represented It is palm PC, cell phone and IPAD.
Step S20, electromagnetic coupled simulation is carried out based on electro thermal coupling model in physical field, obtains electricity in electro thermal coupling model Correlation between stream, heat and coupling coil structure;
Set up after electro thermal coupling model, be i.e. after execution of step S10, electromagnetic coupled is carried out in physical field to electro thermal coupling model Simulation, can be simulated by finite element software;Physical field includes the one or more of gravity, electric power and magnetic field force.Pass through Electromagnetic coupled is simulated, and can obtain the correlation between some groups of electric currents, heat and coupling coil structure;What heat was represented is Temperature of the coupling coil during normal electromagnetic coupled;The coupling coil structure includes coupling coil deformation quantity;Pass through coupling Zygonema cast variable is with clearly corresponding electric current and heat, for optimizing and revising for subsequent step.
Step S30, optimizes the job information of the coupling coil based on correlation.
After execution of step S20, according to step S20 some groups of correlations, select coupling efficiency high one group is mutual Relation, using the routine work information as coupling coil, realizes optimization.The present embodiment reduces coupling compared to prior art Coil deformation quantity of the coil during electromagnetic coupled, to improve coupling efficiency.
With reference to Fig. 2, Fig. 2 is the schematic flow sheet of second embodiment of the invention.
As shown in Figure 2, it is preferable that include step after step S30:
Coupling efficiency of the coupling coil under normal electromagnetic coupled state after step S40, calculation optimization, and judge the coupling Whether efficiency is more than default efficiency;
Step S50, if being more than, regard the job information after optimization as routine work information.
Step S60, if being less than, return to step S10.
After step S30, the coupling coil after step S40, calculation optimization is performed under normal electromagnetic coupled state Coupling efficiency, embodiment can be that coupling coil is powered, and obtain the magnetic field produced in the coupling coil unit interval strong Degree, as coupling efficiency, to judge whether the coupling efficiency is more than default efficiency;If being more than, the work after optimization is believed Breath as routine work information, for example can using flowed through after optimization the current range of coupling coil as after optimization coupling coil it is normal Advise job information.The default efficiency is the average coupling efficiency before coupling coil optimizes.The present embodiment further increases excellent The coupling efficiency of coupling coil after change, improves coupling stability.
With reference to Fig. 3, Fig. 3 is the schematic flow sheet of third embodiment of the invention.
As shown in Figure 3, it is preferable that include step before the step S10:
Step S1, is powered to coupling coil, obtains job information when coupling coil is in normal electromagnetic coupled state.
In the present embodiment, the mode for obtaining the job information that coupling coil is in normal electromagnetic coupled state is limited It is fixed, coupling coil is placed in the scene in zero magnetic field, and coupling coil is powered, obtain coupling coil and be in normal electromagnetism coupling Job information during conjunction state.To improve the accuracy of acquired job information.
With reference to Fig. 4, the refinement schematic flow sheet that Fig. 4 is step S30 in first embodiment of the invention.
As shown in Figure 4, it is preferable that the step S30 includes step:
Step S31, confirms the minimum correlation of heat from each correlation;
Step S32, the job information of coupling coil is adjusted according to the correlation.
The present embodiment is defined to step S30, in step S31, and heat is confirmed from each correlation of acquisition Minimum correlation;The operating current of coupling coil is adjusted to the electric current in the minimum correlation of heat, it is excellent to realize Change.The temperature of coupling coil coupling coil during electromagnetic coupled is reduced, to reduce the deformation quantity of coil, coupling effect is improved Rate.Wherein, what heat was represented is temperature of the coupling coil during normal electromagnetic coupled.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills Art field, is included within the scope of the present invention.

Claims (6)

1. a kind of wireless power transmission coupling coil Optimization Design, it is characterised in that comprise the following steps:
Step S10, the job information based on coupling coil under normal electromagnetic coupled state sets up correspondence electro thermal coupling model;
Step S20, based on electro thermal coupling model physical field carry out electromagnetic coupled simulation, obtain electro thermal coupling model in electric current, Correlation between heat and coupling coil structure;
Step S30, optimizes the job information of the coupling coil based on correlation.
2. wireless power transmission coupling coil Optimization Design as claimed in claim 1, it is characterised in that in step slo, The job information includes coupling coil power bracket or flows through the current range of coupling coil.
3. wireless power transmission coupling coil Optimization Design as claimed in claim 1, it is characterised in that step S30 it Include step afterwards:
Coupling efficiency of the coupling coil under normal electromagnetic coupled state after step S40, calculation optimization, and judge the coupling Whether efficiency is more than default efficiency;
Step S50, if being more than, regard the job information after optimization as routine work information;
Step S60, if being less than, return to step S10.
4. wireless power transmission coupling coil Optimization Design as claimed in claim 1, it is characterised in that the physical field bag Include the one or more of gravity, electric power and magnetic field force.
5. wireless power transmission coupling coil Optimization Design as claimed in claim 1, it is characterised in that the step S10 Include step before:
Step S1, is powered to coupling coil, obtains job information when coupling coil is in normal electromagnetic coupled state.
6. wireless power transmission coupling coil Optimization Design as claimed in claim 1, it is characterised in that the step S30 Including step:
Step S31, confirms the minimum correlation of heat from each correlation;
Step S32, the job information of coupling coil is adjusted according to the correlation.
CN201710687012.XA 2017-08-11 2017-08-11 Wireless power transmission coupling coil Optimization Design Pending CN107332356A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710687012.XA CN107332356A (en) 2017-08-11 2017-08-11 Wireless power transmission coupling coil Optimization Design

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710687012.XA CN107332356A (en) 2017-08-11 2017-08-11 Wireless power transmission coupling coil Optimization Design

Publications (1)

Publication Number Publication Date
CN107332356A true CN107332356A (en) 2017-11-07

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757992A (en) * 2018-12-11 2019-05-17 惠州拓邦电气技术有限公司 A kind of auto dish frying pot working condition judgment method, device and auto dish frying pot

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Publication number Priority date Publication date Assignee Title
CN101344564A (en) * 2008-08-14 2009-01-14 西安电子科技大学 Active phase array antenna electrical property prediction method based on mechanical, electric and thermal three-field coupling
JP2012074016A (en) * 2010-08-30 2012-04-12 Keio Gijuku Electromagnetic, thermal and fluid analysis device
CN103208866B (en) * 2013-04-23 2015-09-16 中国科学院电工研究所 A kind of method for designing of Contactless power transmission device
CN105978172A (en) * 2016-07-29 2016-09-28 武汉大学 Inverter circuit multi-physical-field analyzing method based on wireless electric energy transmission system losses
CN106026414A (en) * 2016-08-01 2016-10-12 福建工程学院 Dynamic coupling coil magnetic field adjusting method and device for wireless power transmission

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101344564A (en) * 2008-08-14 2009-01-14 西安电子科技大学 Active phase array antenna electrical property prediction method based on mechanical, electric and thermal three-field coupling
JP2012074016A (en) * 2010-08-30 2012-04-12 Keio Gijuku Electromagnetic, thermal and fluid analysis device
CN103208866B (en) * 2013-04-23 2015-09-16 中国科学院电工研究所 A kind of method for designing of Contactless power transmission device
CN105978172A (en) * 2016-07-29 2016-09-28 武汉大学 Inverter circuit multi-physical-field analyzing method based on wireless electric energy transmission system losses
CN106026414A (en) * 2016-08-01 2016-10-12 福建工程学院 Dynamic coupling coil magnetic field adjusting method and device for wireless power transmission

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Title
段宝岩等: "微波天线多场耦合理论模型与多学科优化设计的研究", 《电子学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109757992A (en) * 2018-12-11 2019-05-17 惠州拓邦电气技术有限公司 A kind of auto dish frying pot working condition judgment method, device and auto dish frying pot
CN109757992B (en) * 2018-12-11 2020-09-15 惠州拓邦电气技术有限公司 Automatic frying pan working state judgment method and device and automatic frying pan

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Application publication date: 20171107

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