CN202585081U - High-power magnetic integrated transformer for electric vehicle charging machine - Google Patents

High-power magnetic integrated transformer for electric vehicle charging machine Download PDF

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Publication number
CN202585081U
CN202585081U CN 201220171507 CN201220171507U CN202585081U CN 202585081 U CN202585081 U CN 202585081U CN 201220171507 CN201220171507 CN 201220171507 CN 201220171507 U CN201220171507 U CN 201220171507U CN 202585081 U CN202585081 U CN 202585081U
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CN
China
Prior art keywords
magnetic
coil
transformer
electric vehicle
post
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.)
Expired - Fee Related
Application number
CN 201220171507
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Chinese (zh)
Inventor
周君
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.)
Nanjing Yi Ka Electric Technology Co Ltd
Original Assignee
HEFEI HIAO ELECTRICAL TECHNOLOGY 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
Application filed by HEFEI HIAO ELECTRICAL TECHNOLOGY Co Ltd filed Critical HEFEI HIAO ELECTRICAL TECHNOLOGY Co Ltd
Priority to CN 201220171507 priority Critical patent/CN202585081U/en
Application granted granted Critical
Publication of CN202585081U publication Critical patent/CN202585081U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/80Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/92Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles

Abstract

The utility model discloses a high-power magnetic integrated transformer for an electric vehicle charging machine. The high-power magnetic integrated transformer comprises a magnetic core, wherein an electric induction coil is wound on an upper post of a central post of the magnetic core; a transformer coil is wound on a lower post of the central post of the magnetic core; the electric induction coil is a coil with a primary side winding of 16 turns; the transformer coil is a coil with a secondary side winding of 10 turns; a left post and a right post of the magnetic core are provided with air gaps; the coils are formed by adopting a two-turn-parallel winding manner; the magnetic core is a soft magnetic ferrite core UU80-160; and the coils are copper coils. According to the high-power magnetic integrated transformer for the electric vehicle charging machine, a technology that a resonant inductor is integrated with an isolation transformer is adopted, so that the volume and loss of a magnetic component are reduced, the zero ripple for current can be realized, and the EMI (Electromagnetic Interference) is greatly reduced; and the high-power magnetic integrated transformer is applied to the electric vehicle charging machine, so that not only is the electric vehicle charging machine safe and reliable, but also the overall performance of a system is improved.

Description

The high-power magnetic integrated transformer of a kind of charging electric vehicle machine
Technical field
The utility model relates to a kind of transformer, is specifically related to the integrated change device of the high-power magnetic of a kind of charging electric vehicle machine.
Background technology
The research of charging electric vehicle is to be the basis with the power electronics, and the electric energy conversion through the control semiconductor device is opened and turn-offed obtains needed high-quality power supply.Along with improving constantly of industrialization degree, the development of Switching Power Supply is a primary goal with high frequencyization, high efficiency, high reliability, high power density etc. also.
Magnetic element is a pith in the power electronic equipment, mainly realizes the function of energy storage, conversion, filtering and electrical isolation, and its volume, weight are also occupied significant proportion in overall apparatus.The high frequency development helps to reduce the weight and the volume of magnetic cell, but DeGrain.In addition, the height miniaturization of Switching Power Supply development can produce serious electromagnetic compatibility problem, is unfavorable for power electronic equipment and peripheral equipment reliably working, and electric current, voltage ripple produce EMI, also can't guarantee high-quality supply of electrical energy.
The utility model content
The utility model provides a kind of high-power magnetic integrated transformer of charging electric vehicle machine that reduces magnetic element volume and loss, reduces power supply output ripple.
The scheme of the utility model is following: the high-power magnetic integrated transformer of a kind of charging electric vehicle machine; Comprise magnetic core; The newel upper prop coiling inductance coil of said magnetic core, the newel lower prop coiling transformer coil of said magnetic core, described inductance coil are former limit winding 16 circle coils; Described transformer coil is secondary winding 10 circle coils, and described magnetic core left side post and right post are provided with air gap.
Described coil adopts the canoe of two circles parallel connection.
Described magnetic core is earlier with UU80-160 soft magnetic ferrite iron core, and described coil is a copper coil.
The beneficial effect of the utility model:
1, with the discrete resonant inductance of traditional LLC circuit and discrete isolating transformer through certain coupled modes; Adopt certain technique for coiling that the magnetic element (transformer, inductance etc.) in the power electronic equipment is integrated on the magnetic core; Become an integrated magnetic component; Effectively reduce volume, weight, loss and the power supply output ripple of magnetic element, improve the overall performance of switch converters.
2, enhance productivity, guaranteed the consistency of magnetic element parasitic parameter, strengthen in fact with being worth.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is applied to the full-bridge topological diagram of charging electric vehicle for the utility model.
Embodiment
Below in conjunction with Fig. 1, Fig. 2 the utility model is further specified.
The structure of the utility model integrated magnetics method for designing is shown in accompanying drawing 1, and magnetic core 1 is selected UU80-160 soft magnetic ferrite iron core for use, and it is 16 circles that coil adopts the former limit of round conductor coiling winding, because secondary current is bigger, elite with AWG18 lead coiling 10 circles.Core center post upper prop 2 coiling inductance coils, newel lower prop 3 coiling transformer coils.Described magnetic core left side post and right post are provided with air gap 4.
The utility model coil adopts two circles parallel connection canoe to be designed to the plane integrated magnetics to integrated magnetics.At first convert round conductor into planar conductor; Should guarantee during conversion that cross-sectional area of conductor is long-pending constant; Convert round conductor to uiform section long-pending square lead earlier, and then convert square lead to corresponding Copper Foil lead, consider that the maximum current density that copper conductor passes through is generally 3~5A/mm 2, the planar conductor line Copper Foil is 10~20A/mm 2, the sectional area of the corresponding Copper Foil in conversion back is merely 1/3~1/4 of round conductor sectional area, and Copper Foil is extremely thin.If convert a round conductor to a Copper Foil conductor, Copper Foil will be non-constant width so, and this obviously is not suitable for the width requirement of magnetic spare; Therefore can be divided into several Copper Foils that wait width to it; Just passable these several Copper Foil parallel connections again, the every lead in the former limit of the integrated magnetics that obtains like this becomes two planar conductor parallel connections, the thick 0.2mm of the wide 0.6mm of each Copper Foil; Be convertible into 5 planar conductor parallel connections for every round conductor of secondary, the thick 0.2mm of the wide 2mm of conductor.Because the shared cumulative volume of conversion back winding reduces; And the planar conductor arrangement is compacter; The thick 0.2mm of every rhizoplane conductor, the thickness of 16 layer plane conductors is 3mm, even add that it also is very little that thickness of insulating layer is compared with the wide 23.4mm of the high 42.2mm of window of UU80-160 magnetic core.This makes UU windows of magnetic cores utilance obviously improve; The maximum functional magnetic flux density that has guaranteed magnetic spare iron core is less than its saturation flux density; It is bigger that effective magnetic circuit length reduces, can exert an influence to the inductance value of integrated magnetics, but because three magnetic posts of iron core all have air gap; So the size of inductance value mainly by the magnetic circuit decision of air gap, can be ignored by the influence of magnetic core magnetic circuit.Adopt this manufacture craft to improve much than traditional magnetic spare system performance, the magnetic flux density of integrated back, plane magnetic core reduces, and therefore integrated back core loss is also with corresponding little.
The full-bridge topology that this high-power magnetic integrated transformer is applied to charging electric vehicle sees shown in the accompanying drawing 2 that former limit is a full bridge circuit, and what secondary connected is to be with centre tapped rectification circuit.This converter has following advantage, in full-load range, has the ZVS function zero, and the IGBT shutoff voltage is low, so the turn-off power loss of converter is very low, has high efficiency under the high input voltage.The converter secondary does not have filter inductance, the voltage stress of secondary rectifying tube is low, has made full use of leakage inductance Ls and magnetizing inductance Lm of transformer on the magnetic core etc.
The utility model adopts the technology that integrates resonant inductance and isolating transformer, has not only reduced volume, the loss of magnetic spare, but also can realize the current zero ripple; Reduce EMI greatly; Be applied in the charging electric vehicle machine, not only safe and reliable, and improved the overall performance of system again.
Although preceding text have given to describe in detail and explanation to the embodiment of the utility model; But what should indicate is; We can carry out various equivalences to above-mentioned execution mode according to the conception of the utility model and change and modification; When the function that it produced does not exceed spiritual that specification and accompanying drawing contain yet, all should be within the protection range of the utility model.

Claims (3)

1. high-power magnetic integrated transformer of charging electric vehicle machine; Comprise magnetic core; The newel upper prop coiling inductance coil that it is characterized in that said magnetic core, the newel lower prop coiling transformer coil of said magnetic core, described inductance coil are former limit winding 16 circle coils; Described transformer coil is secondary winding 10 circle coils, and described magnetic core left side post and right post are provided with air gap.
2. the high-power magnetic integrated transformer of a kind of charging electric vehicle machine according to claim 1 is characterized in that described coil adopts the canoe of two circles parallel connection.
3. the high-power magnetic integrated transformer of a kind of charging electric vehicle machine according to claim 1 is characterized in that described magnetic core earlier with UU80-160 soft magnetic ferrite iron core, and described coil is a copper coil.
CN 201220171507 2012-04-23 2012-04-23 High-power magnetic integrated transformer for electric vehicle charging machine Expired - Fee Related CN202585081U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220171507 CN202585081U (en) 2012-04-23 2012-04-23 High-power magnetic integrated transformer for electric vehicle charging machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220171507 CN202585081U (en) 2012-04-23 2012-04-23 High-power magnetic integrated transformer for electric vehicle charging machine

Publications (1)

Publication Number Publication Date
CN202585081U true CN202585081U (en) 2012-12-05

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Family Applications (1)

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Country Status (1)

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CN (1) CN202585081U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI584314B (en) * 2015-09-23 2017-05-21 台達電子企業管理(上海)有限公司 Magnetic assembly
CN108335834A (en) * 2017-12-21 2018-07-27 浙江埃能德电气有限公司 High-frequency charger high-performance energy-saving transformer
CN108335835A (en) * 2017-12-21 2018-07-27 浙江埃能德电气有限公司 Charger integrated energy-saving environmental protection transformer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI584314B (en) * 2015-09-23 2017-05-21 台達電子企業管理(上海)有限公司 Magnetic assembly
CN108335834A (en) * 2017-12-21 2018-07-27 浙江埃能德电气有限公司 High-frequency charger high-performance energy-saving transformer
CN108335835A (en) * 2017-12-21 2018-07-27 浙江埃能德电气有限公司 Charger integrated energy-saving environmental protection transformer

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C14 Grant of patent or utility model
ASS Succession or assignment of patent right

Owner name: NANJING YIKA ELECTRICAL TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: HEFEI HIAU ELECTRICAL TECHNOLOGY CO., LTD.

Effective date: 20140718

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20140718

Address after: Zhongshan Science Park by the road in Liuhe District of Nanjing City, Jiangsu province 211505 No. 9 building A11 Room 301

Patentee after: Nanjing Yi Ka Electric Technology Co Ltd

Address before: 230088 circular economy institute, No. 2221 West Changjiang Road, Hefei hi tech Zone, Anhui

Patentee before: Hefei Hiao electrical Technology Co., Ltd.

COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 230088 HEFEI, ANHUI PROVINCE TO: 211505 NANJING, JIANGSU PROVINCE

DD01 Delivery of document by public notice

Addressee: Nanjing Yi Ka Electric Technology Co Ltd

Document name: Notification to Pay the Fees

DD01 Delivery of document by public notice

Addressee: Nanjing Yi Ka Electric Technology Co Ltd

Document name: Notification of Termination of Patent Right

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121205

Termination date: 20160423