CN106828131A - 用于车辆的无线充电系统 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- 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
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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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
- B60L53/60—Monitoring or controlling charging stations
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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
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/27—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by heating
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/48—The network being an on-board power network, i.e. within a vehicle for electric vehicles [EV] or hybrid vehicles [HEV]
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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
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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
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- 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
- Y02T90/12—Electric charging stations
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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
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- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
本发明提供一种用于车辆的无线充电系统,起包括:无线功率接收器,其无线地接收电力。传热装置,其传输从无线功率接收器产生的热。可充电电池以从无线功率接收器接收的电力被充电,并且通过接收由传热装置传输的热而被加热。
Description
技术领域
本发明总体涉及一种用于车辆的无线充电系统。且更具体地,本发明涉及一种能够提高接收的电力的充电效率的用于车辆的无线充电系统。
背景技术
一般地,无线充电技术是在充电设备和电池的各个接触端子之间无接触的情况下无线传输电力来给电池充电的技术。
无线充电技术已被用于给便携式电子设备的低容量电池充电,例如移动电话以及个人数字助理(PDA:personal digital assistant)。然而,正在开发用于需要高电力传输的应用的新技术,例如给应用至电动车辆或插电式混合动力电动车辆的电池充电。
无线充电技术的原理是使用电磁感应或谐振来传输和接收电力。为了实现这项功能,应当提供在功率发送单元和功率接收单元中都具有相应线圈的无线充电设备。具体地,用于给电动车辆或插电式混合动力电动车辆充电的无线充电设备需要高容量电池,并且因此,需要高电力传输,以减少电池的充电时间。因此,无线充电设备会产生大量的热,且具有较大的尺寸。
现有技术中,从无线充电系统中产生的热被认为是能量损耗,因此研究和开发都集中在有效地进行散热的方法上。
上文仅意在帮助理解本发明的背景,并且不旨在意味着本发明落入本领域的技术人员已知的现有技术的范围内。
发明内容
本发明是鉴于现有技术中出现的上述问题而做出的。本发明的一方面是提供一种用于车辆的无线充电系统,其能够使用从在车辆的电池充电过程中无线地接收电力的无线充电接收器产生的热提高所接收的电力的充电效率。
根据本发明的一个示例性实施例,一种用于车辆的无线充电系统包括:无线功率接收器,其无线地接收电力;传热装置,其传输从无线功率接收器产生的热;以及可充电电池,其以从无线功率接收器接收的电力被充电,并且接收由传热装置传输的热。
传热装置可包括布置成与无线功率接收器接触并且消散从无线功率接收器产生的热的热沉。
传热装置可包括在从无线功率接收器至可充电电池的方向上产生气流的风扇。
可充电电池可以是全固态电池。
上述无线充电系统还可包括:电加热线圈,其布置在传热装置和可充电电池之间。
根据本发明的另一实施例,一种用于车辆的无线充电系统包括:无线功率接收器,其无线地接收电力;热沉,其布置成与无线功率接收器接触,并且消散从无线功率接收器产生的热;风扇,为了将从热沉消散的热传输至空气中而产生气流;以及,全固态电池,其以从无线功率接收器接收的电力被充电,并且通过由风扇产生的气流而传输来的热被加热。
无线充电系统还可包括:电加热线圈,其设置在风扇和全固态电池之间。
根据配置成如上所述的用于车辆的无线充电系统,全固态电池能够使用从无线功率接收器产生的热能被充分加热,以实现最优充电温度,从而能够提高全固态电池的充电性能。
因此,根据本发明的用于车辆的无线充电系统,能够减少全固态电池完全充电的时间,并且提高车辆的可靠性和适销性。
附图说明
图1是示出根据本发明的实施例的用于车辆的无线充电系统的技术构思的框图;
图2是示出根据本发明的实施例的用于车辆的无线充电系统的视图;
图3是示出根据本发明的实施例的当使用用于车辆的无线充电系统对车辆进行无线充电时的能量流和充电的视图。
具体实施方式
在下文中,将参考附图详细描述本发明的示例性实施例。贯穿附图,相同的附图标记将指代相同或相似的部件。
图1是示出根据本发明的实施例的用于车辆的无线充电系统的技术概念的方框图。
如图1所示,根据本发明的用于车辆的无线充电系统包括:无线功率接收器10、传热装置20、和可充电电池30。在图1中实线箭头指的是电能流,并且图1中的虚线箭头指的是热能流。
无线功率接收器10接收来自用于车辆的无线充电系统的无线功率发射器200(参见图3)的电力。在无线充电系统中,无线功率发射器200和无线功率接收器10可包括彼此电磁耦合的各自相应的线圈。即,设置在无线功率发射器200中的线圈使用经由配电网传输来的商用交流电来建立磁场,并且设置在无线功率接收器10中的线圈产生由无线功率发射器200建立的磁场感应出的电力,从而使得能够进行无线功率发射和接收。
在无线功率发射和接收过程中,在电磁耦合期间,无线功率发射器200和无线功率接收器10产生大量的热作为能量损耗。
在根据本发明的无线充电系统中,热在给车辆充电时产生,并且用于提高驱动电动机的车辆电池的效率。换句话说,从设置在车辆中的无线功率接收器10产生的热用于将电池加热至适当的温度,以优化电池充电效率。
传热装置20是为了将从无线功率接收器10产生的热传递至可充电电池30而设置的。换句话说,传热装置20能够将由无线功率接收器10产生的热产生的热能的流动方向定向为朝向可充电电池30。
传热装置20可包括以具有良好的导热性的材料制成的热沉21(参见图2)或产生气流的风扇22(参见图2)。
可充电电池30是为了接收来自无线功率接收器10的电力并且存储该电力而设置的。此处,可充电电池30可以是全固态电池。
全固态电池具有允许离子经其通过的固体电解质。锂离子电池被用作现有技术中的可充电电池,其中,通过隔膜(separator)将锂离子电池的阴极与其阳极分开。当由于震动等而导致隔膜受损时,由于阳极和阴极之间相遇而产生热,因此被加热的电解质将转换成气体,因此锂离子电池可能会存在例如着火或爆炸的安全隐患。相反,全固态电池具有无液体的电解质,因此对于震动具有高抵抗性。
进一步地,广泛用于车辆的现有技术的高压电池的锂离子聚合物电池,在高温下会具有劣化的性能或效率,并且会造成安全隐患,例如着火或爆炸,因此,锂离子聚合物电池需要电池的热管理系统。相反,全固态电池在高温条件下安全,因此无需热管理系统。此外,电池温度越高,其离子导电性和充电效率越好。
因此,可充电电池30可以是全固态电池,从而使充电效率能够通过经由传热装置20传来的热而提高。通过接收从无线功率接收器10产生并且通过传热装置20传输的热,全固态电池30能够被加热至实现最优充电效率的温度,例如,约70℃到80℃。
图2是示出根据本发明的实施例的用于车辆的无线充电系统的视图。
如图2所示,用于车辆的无线充电系统可包括:无线功率接收器10,其无线地接收电力;热沉21,其通过与无线功率接收器10紧密接触来消散从无线功率接收器产生的热;风扇22,为了将从热沉消散的热传输至空气中,产生气流;以及,全固态电池30,其以从无线功率接收器10接收的电力被充电,并且通过由风扇22产生的气流而传输来的热被加热。根据本发明的用于车辆的无线充电系统还可以包括电加热线圈40,其设置在风扇22和全固态电池30之间。
根据本发明的用于车辆的无线充电系统,上述传热装置20包括热沉21和风扇22。
热沉21与无线功率接收器10紧密接触,并且协助消散热,因此扩大从无线功率接收器10传输的热与空气接触的接触面积。一般地,热沉(heat sink)21可包括与无线功率接收器10紧密接触的散热板(heatsinking plate)和用于扩大与空气接触的接触面积的散热片(heat sinkingfin)。
根据本发明的用于车辆的无线充电系统配置成通过热沉21消散从无线功率接收器10产生的热,并且将所消散的热传输至全固态电池30,因此,热沉21可设置在无线功率接收器10的电池侧的表面。
风扇22是为了产生气流而设置的,其中风扇22能够从其一侧吸入空气并且将空气释放至其另一侧。根据本发明,从热沉21消散的热应通过将热传输至全固态电池30来加热全固态电池30,从而操作风扇22并且在从热沉21至全固态电池30的方向上产生气流。
根据本发明,用于车辆的无线充电系统还包括:电加热线圈40。电加热线圈40设置成当电流流经时产生热。当经由包括热沉21和风扇22的传热装置传输来的热不足以充分加热全固态电池30时,操作电加热线圈40。
电加热线圈40可布置在风扇22和全固态电池30之间,从而使全固态电池30能够通过使用由如上所述的风扇22产生的气流而被加热。
传热装置20包括热沉21和/或风扇22。例如,当传热装置仅包括热沉21时,可充电电池30可靠近热沉21或可与热沉21紧密接触。
图3是示出根据本发明的实施例的当使用用于车辆的无线充电系统对车辆进行无线充电时的能量流和充电概念的视图。
如图3所示,为了对车辆进行无线充电,车辆100具有无线功率接收器10和可充电电池(全固态电池)30,并且进入具有无线功率发射器200的车辆充电站,并且随后,设置在车辆100的下部的无线功率接收器10、和设置在充电站地面上的无线功率发射器200彼此面对对准。
接收来自配电网的交流电的无线功率发射器200产生磁场,并且,无线功率接收器10产生通过磁场感应的电力,从而能够进行电力传输。
从无线功率接收器10提供的电力是交流电,但是为了给可充电电池30充电,交流电必须转换为直流电。因此,在车辆100中设置的AC/DC变换器110将从无线功率接收器10产生的电力转换为直流,并且将已转换的直流电传输至车辆的能量管理系统(EMS:energymanagement system)120。EMS 120将从AC/DC变换器110传输来的直流转换成能够使可充电电池30进行充电的电压和电流,并且向可充电电池30提供电流。因此,可充电电池30能够以无线功率接收器10从无线功率发射器200接收的电力进行充电。
当无线功率接收器10产生由磁场感应出的交流电时,产生热,并且该热通过与无线功率接收器10的上部紧密接触的热沉21在无线功率接收器10的朝上方向上消散。
风扇22设置在热沉21的上部并且在无线功率接收器10和可充电电池30之间的空间内产生气流。换句话说,风扇22在从无线功率接收器10至可充电电池30的方向上产生气流,因此,向可充电电池30提供从无线功率接收器10产生并且通过热沉21消散的热。
参考图3,无线功率接收器10、热沉21、风扇22以及可充电电池30依次布置在车辆的上下方向上,即,车辆的垂直方向上。然而,上述布置能根据车辆的内部布局而进行改变。换句话说,根据本发明的用于车辆的无线充电系统还可以包括:管道(duct)130,其用于允许空气在无线功率接收器10和可充电电池30之间流动,并且管道130的结构能够根据需求进行改变,因此形成所期望的结构。
如上所述,根据本发明的实施例的用于车辆的无线充电系统可通过使用从无线功率接收器产生的热能充分地将全固态电池加热至最优充电温度,从而提高全固态电池的充电性能。
因此,能够减少全固态电池完全充电的时间,并且提高具有无线充电系统的车辆的可靠性和适销性。
尽管上述示例性实施例已为示例性目的进行描述,但本领域的技术人员应当意识到的是,在不违背如所附权利要求中所公开的本发明的范围和精神的情况下,能够做出各种修改、增添和替换。
Claims (8)
1.一种用于车辆的无线充电系统,所述无线充电系统包括:
无线功率接收器,其无线地接收电力;
传热装置,其传输从所述无线功率接收器产生的热;以及
可充电电池,其以从所述无线功率接收器接收的电力被充电,并且接收由所述传热装置传输的热。
2.根据权利要求1所述的无线充电系统,其中所述传热装置包括布置成与所述无线功率接收器接触并且消散从所述无线功率接收器产生的热的热沉。
3.根据权利要求1所述的无线充电系统,其中所述传热装置包括风扇,所述风扇在从所述无线功率接收器至所述可充电电池的方向上产生气流。
4.根据权利要求1所述的无线充电系统,其中所述可充电电池是全固态电池。
5.根据权利要求1所述的无线充电系统,所述无线充电系统还包括:
电加热线圈,其布置在所述传热装置和所述可充电电池之间。
6.根据权利要求1所述的无线充电系统,其中,所述无线功率接收器接收由来自无线功率发射器的磁场所感应出的电力,所述无线功率发射器布置在电池充电站的地面上。
7.一种用于车辆的无线充电系统,所述无线充电系统包括:
无线功率接收器,其配置成无线地接收电力;
热沉,其布置成与所述无线功率接收器接触,并且消散从所述无线功率接收器产生的热;
风扇,其产生气流,以将从所述热沉消散的热传输至空气中;以及
全固态电池,其以从所述无线功率接收器接收的电力被充电,并且通过由所述风扇产生的气流传输的热而被加热。
8.根据权利要求7所述的无线充电系统,还包括:
电加热线圈,其布置在所述风扇和所述全固态电池之间。
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