CN113572269B - 一种电动汽车无线充电三相解耦发射和接收线圈结构 - Google Patents
一种电动汽车无线充电三相解耦发射和接收线圈结构 Download PDFInfo
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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
- H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/12—Inductive energy transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
- H02J50/402—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
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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
- H02J50/90—Circuit arrangements or systems for wireless supply or distribution of electric power involving detection or optimisation of position, e.g. alignment
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Current-Collector Devices For Electrically Propelled Vehicles (AREA)
Abstract
本发明公开了一种电动汽车无线充电三相解耦发射和接收线圈结构,包括三个发射线圈和一个接收线圈;三个发射线圈均为矩形,分别为发射线圈A、发射线圈B和发射线圈C;所述的接收线圈的矩形平面与发射线圈的矩形平面互相平行且相隔一定距离。采用上述技术方案,解决目前电动汽车无线充电***能量传输效率低的问题,可以保证在接收线圈中心和发射线圈中心偏差较大的情况下,也能保持高效率的能量传输。
Description
技术领域
本发明属于电动汽车电池充电的技术领域,特别涉及无线充电技术。更具体地,本发明涉及一种电动汽车无线充电三相解耦发射和接收线圈结构。
背景技术
在当前新能源汽车续航短、充电难问题依然困扰着整个新能源汽车行业之际,无线充电技术在新能源汽车的应用关注度就越来越高,市场上常见的无线电传输方式中,电磁感应式是主流的技术,但目前***传输效率普遍较低,不能满足批量应用。
在影响传输效率的诸多因素中,位于发射模块的发射线圈和位于接收模块的接收线圈的设计是很重要的一个环节,也是突破瓶颈的一个重要途径。
究其主要原因,是发射线圈及接收线圈的数量、尺寸和相对位置不合理,导致电能传输效率低。
发明内容
本发明提供一种电动汽车无线充电三相解耦发射和接收线圈结构,其目的是实现高效率的能量传输。
为了实现上述目的,本发明采取的技术方案为:
本发明的电动汽车无线充电三相解耦发射和接收线圈结构,包括三个发射线圈和一个接收线圈;三个发射线圈均为矩形,分别为发射线圈A、发射线圈B和发射线圈C;所述的接收线圈的矩形平面与发射线圈的矩形平面互相平行且相隔一定距离。
所述的发射线圈和接收线圈在直角坐标系XYZ中的分布为:发射线圈A和发射线圈C依次沿X轴在一个平面上并列,其矩形平面垂直于Z轴;发射线圈B的矩形平面在射线圈A和发射线圈C的矩形平面沿Z轴的上表面上,并且在X轴方向上,发射线圈B在发射线圈A和发射线圈C的正中间位置;所述的接收线圈在发射线圈B沿Z轴的正向。
所述的发射线圈A、发射线圈B和发射线圈C的矩形长度均相同,其宽度分别为Wa、Wb、Wc;所述的发射线圈A与发射线圈C的同向侧边的距离为d1;发射线圈A与发射线圈C的外侧边的距离为Wp,Wa=Wc;Wp=700mm;d1=1.2Wa。
所述的发射线圈B与发射线圈A的同向侧边的距离为d2,d2=0.5Wa;Wb=Wp-2d2。
所述的接收线圈的矩形尺寸为300mm×300mm。
所述的接收线圈的矩形平面与发射线圈B的矩形平面之间的距离为200mm。
所述的发射线圈和接收线圈的匝数均为25。
本发明采用上述技术方案,解决目前电动汽车无线充电***能量传输效率低的问题,可以保证在接收线圈中心和发射线圈中心偏差较大的情况下,也能保持高效率的能量传输。
附图说明
附图所示内容分别是:
图1为本发明的发射线圈和接收线圈总体布置图;
图2为发射线圈A和发射线圈C位置关系图;
图3为发射线圈A、发射线圈B、发射线圈C位置关系图。
具体实施方式
下面对照附图,通过对实施例的描述,对本发明的具体实施方式作进一步详细的说明,以帮助本领域的技术人员对本发明的发明构思、技术方案有更完整、准确和深入的理解。
如图1至图3所示本发明的结构,为一种电动汽车无线充电三相解耦发射和接收线圈结构。为了克服现有技术的缺陷,实现高效率的能量传输的发明目的,本发明采取的技术方案为:
如图1至图3所示,本发明的电动汽车无线充电三相解耦发射和接收线圈结构,包括三个发射线圈和一个接收线圈;三个发射线圈均为矩形,分别为发射线圈A、发射线圈B和发射线圈C;所述的接收线圈的矩形平面与发射线圈的矩形平面互相平行且相隔一定距离。
本发明通过对线圈位置、形状、尺寸的改进设计,可以在接收线圈中心相对接收线圈中心偏差比较大的情况下,也能保持高效率的能量传输。
所述的发射线圈和接收线圈在直角坐标系XYZ中的分布为:发射线圈A和发射线圈C依次沿X轴在一个平面上并列,其矩形平面垂直于Z轴;发射线圈B的矩形平面在射线圈A和发射线圈C的矩形平面沿Z轴的上表面上,并且在X轴方向上,发射线圈B在发射线圈A和发射线圈C的正中间位置;所述的接收线圈在发射线圈B沿Z轴的正向。
如图1所示,为了增加发射线圈的耐偏差能力,以及产生更大的磁场能量,设计三个发射线圈A、B、C,且形状设计为矩形,沿X轴依次摆放,接收线圈R摆放在发射线圈Z轴正方向,形状也为矩形。
发射线圈的宽度和位置主要根据最小化三个发射线圈的互感以及对称性来确定,同时考虑接收线圈从左到右移动导致偏差时,发射线圈和接收线圈磁场耦合相同。
所述的发射线圈A、发射线圈B和发射线圈C的矩形长度均相同,为Lp,其宽度分别为Wa、Wb、Wc;所述的发射线圈A与发射线圈C的同向侧边的距离为d1;发射线圈A与发射线圈C的外侧边的距离为Wp,Wa=Wc;Wp=700mm;d1=1.2Wa。
在图2中,Wa=Wc,Wc=Wp-d1,在这里Wa为线圈A的宽度,Wc为线圈C的宽度,Wp被限定在700mm,d1为线圈A左边缘到线圈C左边缘的距离。
本发明中如果两个线圈的互感在每个线圈自感的±7%以内,认为是解耦,经过模拟仿真,当1.2Wa≤d1≤Wp时,当线圈A和线圈C互感可以控制在±7%以内,两个线圈解耦,考虑与接收线圈耦合,d1选择最小值1.2Wa,这样Wp=1.2Wa+Wa,Wa=Wc≈315mm。
如图3所示:
所述的发射线圈B与发射线圈A的同向侧边的距离为d2,d2=0.5Wa;Wb=Wp-2d2。
发射线圈B放置在发射线圈A和发射线圈Br正中间。考虑到与线圈A的互感要最小,d2应等于0.5Wa,d2取160mm,Wb=380mm。
所述的接收线圈的矩形尺寸为300mm×300mm。接收线圈形状也为矩形线圈,具体尺寸根据按照车辆尺寸,本发明选择尺寸300mm×300mm。
所述的接收线圈的矩形平面与发射线圈B的矩形平面之间的距离为200mm。为了达到最高的***传输效率,接收线圈和发射线圈之间的距离限制在200mm。
所述的发射线圈和接收线圈的匝数均为25。线圈匝数设计,主要考虑最大化发射线圈和接收线圈的互感,理论上匝数越多,但互感不随着匝数线性增加,当匝数达到一定数值值,互感就会趋于稳定,不再增加,本发明中,发射线圈和接收线圈的匝数设计为25。
上面结合附图对本发明进行了示例性描述,显然本发明具体实现并不受上述方式的限制,只要采用了本发明的方法构思和技术方案进行的各种非实质性的改进,或未经改进将本发明的构思和技术方案直接应用于其它场合的,均在本发明的保护范围之内。
Claims (4)
1.一种电动汽车无线充电三相解耦发射和接收线圈结构,包括三个发射线圈和一个接收线圈;三个发射线圈均为矩形,分别为发射线圈A、发射线圈B和发射线圈C;所述接收线圈的矩形平面与发射线圈的矩形平面互相平行且相隔一定距离;
其特征在于:
所述发射线圈和接收线圈在直角坐标系XYZ中的分布为:发射线圈A和发射线圈C依次沿X轴在一个平面上并列,其矩形平面垂直于Z轴;发射线圈B的矩形平面在发射线圈A和发射线圈C的矩形平面沿Z轴的上表面上;并且在X轴方向上,发射线圈B在发射线圈A和发射线圈C的正中间位置;所述接收线圈在发射线圈B沿Z轴的正向;
所述发射线圈A、发射线圈B和发射线圈C的矩形长度均相同,其宽度分别为Wa、Wb、Wc;所述发射线圈A与发射线圈C的同向侧边的距离为d1;发射线圈A与发射线圈C的外侧边的距离为Wp,Wa=Wc;Wp=700mm;d1=1.2 Wa;
所述发射线圈B与发射线圈A的同向侧边的距离为d2,d2=0.5Wa;Wb=Wp-2d2。
2.按照权利要求1所述的电动汽车无线充电三相解耦发射和接收线圈结构,其特征在于:所述接收线圈的矩形尺寸为300mm×300mm。
3.按照权利要求1所述的电动汽车无线充电三相解耦发射和接收线圈结构,其特征在于:所述接收线圈的矩形平面与发射线圈B的矩形平面之间的距离为200mm。
4.按照权利要求1所述的电动汽车无线充电三相解耦发射和接收线圈结构,其特征在于:所述发射线圈和接收线圈的匝数均为25。
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CN109861402A (zh) * | 2019-03-27 | 2019-06-07 | 哈尔滨工业大学 | 一种应用于电动汽车无线供电***的三极型磁耦合机构发射端及其磁耦合机构 |
CN213185544U (zh) * | 2020-07-09 | 2021-05-11 | 东莞市贝恩电子科技有限公司 | 无线充电装置及*** |
CN113036938A (zh) * | 2021-03-09 | 2021-06-25 | 奇瑞商用车(安徽)有限公司 | 一种电动汽车可调控的无线充电*** |
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CN109861402A (zh) * | 2019-03-27 | 2019-06-07 | 哈尔滨工业大学 | 一种应用于电动汽车无线供电***的三极型磁耦合机构发射端及其磁耦合机构 |
CN213185544U (zh) * | 2020-07-09 | 2021-05-11 | 东莞市贝恩电子科技有限公司 | 无线充电装置及*** |
CN113036938A (zh) * | 2021-03-09 | 2021-06-25 | 奇瑞商用车(安徽)有限公司 | 一种电动汽车可调控的无线充电*** |
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