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WO2014063401A1 - 汽车内后视镜的供电系统和汽车内后视镜 - Google Patents

汽车内后视镜的供电系统和汽车内后视镜 Download PDF

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Publication number
WO2014063401A1
WO2014063401A1 PCT/CN2012/085087 CN2012085087W WO2014063401A1 WO 2014063401 A1 WO2014063401 A1 WO 2014063401A1 CN 2012085087 W CN2012085087 W CN 2012085087W WO 2014063401 A1 WO2014063401 A1 WO 2014063401A1
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WO
WIPO (PCT)
Prior art keywords
power supply
lithium battery
power
battery pack
supply system
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.)
Ceased
Application number
PCT/CN2012/085087
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English (en)
French (fr)
Inventor
易润平
侍强
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 RIDERS INTERNET TECHNOLOGY Co Ltd
Original Assignee
SHENZHEN RIDERS INTERNET TECHNOLOGY Co Ltd
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Publication of WO2014063401A1 publication Critical patent/WO2014063401A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02Rear-view mirror arrangements
    • B60R1/04Rear-view mirror arrangements mounted inside vehicle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12Mirror assemblies combined with other articles, e.g. clocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/40Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the details of the power supply or the coupling to vehicle components
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other DC sources, e.g. providing buffering with light sensitive cells

Definitions

  • the present invention relates to a power supply system for an interior rear view mirror of an automobile and an interior rear view mirror for an automobile, and more particularly to a power supply system for an interior rear view mirror of a vehicle having a solar panel and an interior rear view mirror having the same.
  • the power line travels through the interior space, and the manufacturing method is quite time consuming, and the degree of interference of the conductor in the magnetic field and the electromagnetic wave is proportional to its length.
  • the power line often receives the advantages and disadvantages of the wire.
  • the transmission loss and the coupling-induced interference make the supplied power supply not the voltage drop too large or the power supply is non-pure DC.
  • This kind of power supply will be a kind of damage to the precision electronic equipment, which may increase the error and reduce the electronic equipment. Life expectancy.
  • the load on the vehicle generators is relatively increased, and of course the fuel consumption and carbon dioxide emissions are also increasing, which drives us to adopt environmentally-friendly and energy-saving solar panels.
  • the electronic equipment in the mirror is powered, but the power generation efficiency of the solar panel is determined by the strength of the light. As the weather changes and the location of the vehicle is different, the solar energy obtained by the solar panel varies. Or in a room with low light, the solar panel may not provide enough power to drive the electronics of the mirror, so the lithium battery is required to store the energy generated by the solar panel.
  • the service life of the lithium battery is related to the number of charge and discharge cycles of the battery.
  • the service life of the lithium battery is related to the number of charge and discharge cycles of the battery.
  • An object of the present invention is to solve the problems of the prior art, and to provide a power supply system for a vehicle interior rearview mirror having a solar panel and having a high-efficiency power management unit, and an automotive interior rearview mirror having the power supply system.
  • the invention provides a power supply system for an interior rearview mirror, the power supply system comprising one or more lithium battery packs and a solar power supply device, the solar power supply device comprising a solar panel and a conversion circuit, characterized in that the power supply system
  • the utility model further includes a power management unit, wherein the power management unit is configured to control the lithium battery pack to turn off the power supply of the lithium battery pack to the rearview mirror electronic device when the solar power supply device generates the power required for the rear view mirror electronic device to work normally.
  • the power supply system includes a first lithium battery pack and a second lithium battery.
  • the solar power supply device supplies the first lithium Charging the battery pack
  • the power management unit controls the second lithium battery pack to supply power to the rearview mirror electronic device; or, when the solar power supply device charges the second lithium battery pack, the power management unit controls the first lithium battery pack to the rearview mirror Electronic equipment is powered.
  • the conversion circuit increases the output of the voltage so that the output voltage can charge the lithium battery pack.
  • the power management unit controls the first lithium battery pack to supply power to the inner mirror electronic device, the solar power supply device charges the second lithium battery pack, or when the first lithium battery pack is exhausted Thereafter, the power management unit controls the second lithium battery pack to supply power to the inner mirror electronic device, and the solar power supply device charges the first lithium battery pack.
  • the power management power source charges the lithium battery pack with less than 20% of the power.
  • the power supply system further includes an external power supply interface. After the external power supply interface is connected to the external power supply, the power management unit controls the external power supply to supply power to the inner mirror electronic device, and the power management unit controls the external power supply to the lithium battery. Group charging.
  • the power management unit controls the external power source to first charge the lithium battery pack with a lower power, and then charges the lithium battery pack with a higher power when the lithium battery pack with a lower power is fully charged.
  • the solar panel is attached to the front windshield and is located inside the vehicle of the front windshield.
  • the solar panel has the same length as the front windshield and has a width of 5 to 15 cm.
  • the invention also provides an interior rear view mirror, comprising a mirror, an electronic device is arranged inside the mirror, the electronic device comprises a circuit board and a power supply system for supplying power to the circuit board, wherein
  • the power supply system is a power supply system for an interior rear view mirror as described above.
  • the invention controls the effective use of the solar power supply device and the lithium battery combination through an effective power management unit, reduces the use time and the charge and discharge time of the lithium battery, and is beneficial to saving the service life of the lithium battery pack.
  • lithium battery packs By setting two lithium battery packs to charge and discharge in turn, the number of charge and discharge of the lithium battery pack can be effectively reduced, and the problem of discharge of the lithium battery pack while charging is avoided, and the lithium battery pack can be used efficiently after being efficiently utilized. Both lithium-ion battery packs and solar-powered devices are unable to power the electronics of the interior mirrors.
  • FIG. 1 is a schematic perspective structural view of a rear view mirror of a vehicle according to an embodiment of the present invention
  • FIG. 2 is a schematic view showing the installation of a rear view mirror of a vehicle on a vehicle according to an embodiment of the present invention
  • 3 is a structural block diagram of a vehicle interior mirror power supply system according to an embodiment of the present invention
  • FIG. 4 is a structural block diagram of a vehicle interior rearview mirror according to an embodiment of the present invention.
  • an interior rear view mirror includes a mirror 10, and an electronic device 20 is disposed on an inner side of the mirror, and the electronic device 20 includes a circuit board 21 And a power supply system 22 for supplying power to the circuit board, the power supply system 22 includes two lithium battery packs 221 and a solar power supply device 222, the solar power supply device 222 includes a solar panel 2221 and a conversion circuit 2222, and the power supply system 22 further
  • the power management unit 223 is configured to control the two lithium battery packs to turn off the lithium battery pack 221 to supply power to the mirror electronic device when the solar power supply device 222 generates the power required for the rear view mirror electronic device to work normally.
  • the solar power supply device 222 directly supplies power to the rearview mirror electronic device 20, and the solar power supply device charges the lithium battery pack with less than 20% of the power; when the solar power supply device 222 generates insufficient power to ensure the rearview mirror electronic device In normal operation, that is, when the output power of the solar power supply device is less than the rated power of the rear view mirror electronic device, the electricity Two lithium battery management unit 223 controls a group of lithium batteries 221 supplying power to the electronic device within the rearview mirror.
  • the two lithium battery packs 221 include a first lithium battery pack 2211 and a second lithium battery pack 2212.
  • the first lithium battery pack 2211 supplies power to the mirror electronics
  • the second lithium battery pack 2212 stops moving toward the rearview mirror.
  • the electronic device supplies power.
  • the first lithium battery pack 221 1 stops supplying power to the rearview mirror electronic device.
  • the solar power supply device cannot generate power, the first lithium battery pack And the second lithium battery pack is not charged, after the first lithium battery pack is used up, the second lithium battery pack supplies power to the rearview mirror electronic device, or after the second lithium battery pack runs out of power, the first The lithium battery pack supplies power to the rearview mirror electronics.
  • the power management unit controls the first lithium battery pack 2211 to supply power to the inner mirror electronic device, the solar power supply device charges the second lithium battery pack 2212, or, when the first lithium battery pack After the power is exhausted, the power management unit controls the second lithium battery pack 2212 to supply power to the inner mirror electronic device, and the solar power supply device charges the first lithium battery pack 221.
  • the switching circuit 2222 of the solar power supply device increases the output of the voltage so that the output voltage can charge the lithium battery pack.
  • the power management unit controls the solar power supply unit to charge the lithium battery pack.
  • the power supply system 22 further includes an external power interface 224.
  • the external power interface is a USB interface, and may also be other power interfaces.
  • the solar power supply device charges the lithium battery pack, the power consumption of the rear view mirror electronic device is lower than that of the rear view mirror electronic device.
  • the first lithium battery pack 221 1 and the second lithium battery pack 2212 will be gradually used up.
  • the inner and the rear The mirror electronic device reminds by the audio signal that after the external power source is connected to the external power source, the power management unit controls the external power source to supply power to the inner mirror electronic device, and the power management unit controls the external power source to charge the lithium battery pack. .
  • the power management unit controls the external power supply to charge the lithium battery pack after the external power supply is connected to the external power supply.
  • the power management power source controls the external power source to charge the lithium battery pack with a lower power
  • the external power source is provided for the mobile power source or the vehicle battery or the generator
  • the electric energy is converted into a 5V power supply by the power converter through the power output of the car cigarette lighter.
  • the external battery pack charges the lithium battery pack when it is charged.
  • the power management unit controls the external power source to first charge the lithium battery pack with a lower power, and then charges the lithium battery pack with a higher power when the lithium battery pack with a lower power is full.
  • the external power source supplies power to the rear view mirror electronic device
  • the power management unit controls the external power supply to stop to the lithium battery pack. Charging and stopping powering the electronics of the introverted mirror, and controlling the solar powered device to power the electronic device and charge the lithium battery pack.
  • the solar panel 2221 of the power supply system of the interior mirror of the automobile is attached to the front windshield 30 and located inside the front windshield 30, the length of the solar panel. Same as the width of the front windshield, the length is 0.8 ⁇ 1.2m, and the width is 5 ⁇ 15cm.
  • the electrical energy output by the solar panel is electrically connected to the electronic device of the inner rearview mirror through a wire.
  • the electronic device further includes a GPS navigation module, a GSM/3G module, a processor, a flash memory, and a memory module, and the GPS navigation module, the GSM/3G module, the processor, the flash memory, and the memory module are located on the circuit board 21.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

一种汽车内后视镜的供电系统(22),该供电系统(22)包括一个或多个锂电池组(221)和太阳能供电装置(222),所述太阳能供电装置(222)包括太阳能电池板(2221)以及转换电路(2222),其特征在于,该供电系统(22)还包括一电源管理单元(223),所述电源管理单元(223)用于控制锂电池组(221)在太阳能供电装置(222)产生后视镜电子设备正常工作所需的电量时关闭锂电池组(221)向后视镜电子设备供电。还公开了一种包括该供电系统(22)的汽车内后视镜。通过有效的电源管理单元(223),控制太阳能供电装置(222)和锂电池组(221)合的有效利用,减少锂电池的使用时间和充放电时间,有利于节省锂电池组(221)的使用寿命。

Description

汽车内后视镜的供电系统和汽车内后视镜
【技术领域】
本发明涉及一种汽车内后视镜的供电系统和汽车内后视镜,特别涉及一种 具有太阳能电板的汽车内后视镜的供电系统和具有该供电系统的汽车内后视 镜。
【背景技术】
现金世界各大车厂, 为提供消费者更为安全舒适的驾驶环境, 所有车厂 无不竟相发展车用的电子系统, 诸如倒车雷达系统、 蓝牙通讯、 行车记录仪、 车友互联或导航设备等先进的辅助系统, 然而这些电子设备在设计开发部门 中, 为求能不破坏驾驶抢的整体性, 无不费尽心思研发, 以能融入驾驶抢的环 境中, 方便驾驶操作。
目前市面上的高级车种均可见相当多的经典设计,例如将上述倒车雷达系 统、 行车记录仪、 蓝牙通讯、 车友互联和导航设备等融入到后视镜中, 在实际 运用上对行车安全的提升实有相当大的帮助, 然而后视镜是设置在前挡风玻璃 的正上方, 所以后视镜与电源连接的电源线分布是开发设计者最头痛的问题, 该电源线的穿设不但要注重安全而且要能达到隐藏,方能保有驾 3史抢的筒洁完 整性, 但是现实是这些电源线均需预先穿设在车顶隔热顶棚内加以固定, 然后 再穿入后视镜的支架, 以供应安装在后视镜内的电子设备, 此种设计以现今的 科技水平, 难以达到。
再者, 电源线行经车内空间, 制造方法上相当费时, 且导体在磁场及电磁 波的环境中, 受干扰的程度与其长度成正比, 实际的运用上该电源线经常收到 线材的优劣而产生传到损失, 以及耦合感应的干扰, 使得供应的电源不是压降 太大就是电源非纯净的直流, 这种电源对精密电子设备将是一种伤害, 可能使 误差加大, 且降低电子设备的寿命。 又, 以日益受到重视的环保议题为论, 车用配备越多, 车用发电机的负载 相对增加, 当然油耗和二氧化碳的排放也累增, 这些都驱使我们采用环保节能 的太阳能电池板对后视镜内的电子设备供电,但是太阳能电池板的发电效能受 光线的强弱因素决定, 随着天气的变化以及车辆所处的位置不同, 太阳能电池 板获得的太阳能的能量有所不同, 在晚上或者光线很弱的室内, 太阳能电池板 可能无法提供足够的电量驱动后视镜的电子设备工作,所以需要锂电池对太阳 能电池板产生的电能进行存储。
然而锂电池的使用寿命与电芯的充放电次数有关,为了避免锂电池过多的 充放电以及有效的利用太阳能电池直接对后视镜的电子设备进行供电,需要对 汽车内后视镜的供电系统进行管理。
【发明内容】
本发明的目的就是为了解决现有技术存在的问题,提出了一种具有太阳能 电板的且具有高效电源管理单元的汽车内后视镜的供电系统和具有该供电系 统的汽车内后视镜。
本发明的具体技术方案如下:
本发明提供一种汽车内后视镜的供电系统,该供电系统包括一个或多个锂 电池组和太阳能供电装置,所述太阳能供电装置包括太阳能电池板以及转换电 路, 其特征在于, 该供电系统还包括一电源管理单元, 所述电源管理单元用于 控制锂电池组在太阳能供电装置产生后视镜电子设备正常工作所需的电量时 关闭锂电池组向后视镜电子设备供电。
该供电系统包括第一锂电池组和第二锂电池, 当所述太阳能供电装置产生 的电量不足以维持后视镜电子设备正常工作但又满足锂电池正常充电时,太阳 能供电装置给第一锂电池组充电,所述电源管理单元控制第二锂电池组向后视 镜电子设备供电; 或, 太阳能供电装置给第二锂电池组充电时, 电源管理单元 控制第一锂电池组向后视镜电子设备供电。
当所述太阳能供电装置产生的电量不足, 转换电路提高电压的输出, 使输 出的电压能够对锂电池组充电。 该当第二锂电池组电量耗尽后, 电源管理单元控制第一锂电池组向内后视 镜电子设备供电, 太阳能供电装置给第二锂电池组充电, 或当第一锂电池组电 量耗尽后, 电源管理单元控制第二锂电池组向内后视镜电子设备供电, 太阳能 供电装置给第一锂电池组充电。
在所述后视镜电子设备停止工作时,并且太阳能供电装置产生的电量满足 锂电池正常充电时, 电源管理电源对电量低于 20%的锂电池组进行充电。
所述供电系统还包括一外部电源接口,在所述外部电源接口接上外部电源 后, 所述电源管理单元控制外部电源向内后视镜电子设备供电, 同时电源管理 单元控制外部电源给锂电池组充电。
所述电源管理单元控制外部电源先给电量较低的锂电池组充电,待电量较 低的锂电池组充电充满后再向电量较高的锂电池组充电。
所述太阳能电池板贴付在前挡风玻璃上, 且位于前挡风玻璃的车内侧。 所述太阳能电池板长度与前挡风玻璃的宽度相同, 宽度为 5~15cm。 本发明还提供一种汽车内后视镜, 包括一反光镜, 在所述反光镜内侧设置 有电子设备, 所述电子设备包括一电路板以及向该电路板供电的供电系统, 其 特征在于, 所述供电系统为如上所述汽车内后视镜的供电系统。
本发明有益的技术效果在于:
本发明通过有效的电源管理单元,控制太阳能供电装置和锂电池组合理有 效的利用, 减少锂电池的使用时间和充放电时间, 有利于节省锂电池组的使用 寿命。
通过设置两个锂电池组分别轮流充电和放电, 能够有效的降低锂电池组的 充放电次数, 同时避免了锂电池组边充电边放电的问题, 而且高效的利用了锂 电池组后, 能够显著的降低锂电池组和太阳能供电装置均无法为内后视镜的电 子设备供电的几率。
【附图说明】
图 1为本发明实施例中汽车内后视镜的立体结构示意图;
图 2为本发明实施例中汽车内后视镜的安装在车上的示意图; 图 3为本发明实施例中汽车内后视镜供电系统的结构框图; 图 4为本发明实施例中汽车内后视镜的结构框图。
【具体实施方式】
为了使发明的目的、技术方案及优点更加清楚明白, 以下结合附图及实施 例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅用 以解释本发明, 并不用来限定本发明。
实施例 1
如图 1 -4所示, 一种汽车内后视镜, 该汽车内后视镜包括一反光镜 10, 在反光镜的内侧面设置有电子设备 20, 所述电子设备 20包括一电路板 21 以 及向该电路板供电的供电系统 22,所述供电系统 22包括两个锂电池组 221和 太阳能供电装置 222, 所述太阳能供电装置 222包括太阳能电池板 2221 以及 转换电路 2222, 该供电系统 22还包括一电源管理单元 223, 所述电源管理单 元 223用于控制两锂电池组在太阳能供电装置 222产生后视镜电子设备正常 工作所需的电量时关闭锂电池组 221向后视镜电子设备供电,改由太阳能供电 装置 222直接向后视镜电子设备 20供电, 并且由太阳能供电装置给电量少于 20%的锂电池组充电;当太阳能供电装置 222产生的电量不足以保证后视镜电 子设备正常工作时, 即当太阳能供电装置的输出功率小于后视镜电子设备的额 定功率时, 所述电源管理单元 223控制两锂电池组 221 中的一个锂电池组向 内后视镜电子设备供电。
两个锂电池组 221 包括第一锂电池组 221 1 和第二锂电池组 2212, 当第 一锂电池组 221 1 向后视镜电子设备供电时, 第二锂电池组 2212停止向后视 镜电子设备供电, 当第二锂电池组 2212向后视镜电子设备供电时, 第一锂电 池组 221 1停止向后视镜电子设备供电, 当太阳能供电装置不能产生电量时, 第一锂电池组和第二锂电池组均得不到充电, 待第一锂电池组电量用完后, 第 二锂电池组向后视镜电子设备供电, 或者待第二锂电池组电量用完后, 第一锂 电池组向后视镜电子设备供电。
当太阳能供电装置产生的电量不足以保证后视镜电子设备正常工作,但是 却能够向锂电池组 221充电时, 电源管理单元控制第一锂电池组 221 1向内后 视镜电子设备供电, 太阳能供电装置给第二锂电池组 2212充电, 或者, 当第 一锂电池组电量耗尽后, 电源管理单元控制第二锂电池组 2212向内后视镜电 子设备供电, 太阳能供电装置给第一锂电池组 221 1充电。
当然当所述太阳能供电装置产生的电量不足时,太阳能供电装置的转换电 路 2222提高电压的输出, 使输出的电压能够对锂电池组充电。 锂电池组电量 低于 20%时, 电源管理单元才控制太阳能供电装置向该锂电池组充电。
所述供电系统 22还包括一外部电源接口 224, 所述外部电源接口为 USB 接口, 也可为其他电源接口, 当太阳能供电装置向锂电池组充电的电量比后视 镜电子设备的耗电量小的时候, 第一锂电池组 221 1 和第二锂电池组 2212将 会被逐渐的用完,待第一锂电池组和第二锂电池组的电量均小于 20%时,所述 内后视镜电子设备通过音频信号做出提醒, 在外部电源接口接上外部电源后, 所述电源管理单元控制外部电源向内后视镜电子设备供电, 同时电源管理单元 控制外部电源给锂电池组充电。只有当锂电池组的电量小于 20%时,外部电源 接口接上外部电源后, 所述电源管理单元才均控制外部电源给锂电池组充电。 当两个电池组的电量均位于 20%~50%之间时, 所述电源管理电源控制外部电 源给电量较低的锂电池组充电,所述外部电源为移动电源或者汽车电池或发电 机提供的电能经电源转换器将汽车点烟器输出的电源转变成 5V的电源。 当采 用外部电源向电子设备供电时, 外部电源给锂电池组充电时, 都将锂电池组的 电量充满。
所述电源管理单元控制外部电源先给电量较低的锂电池组充电,待电量较 低的锂电池组充满后再向电量较高的锂电池组充电。 当所述外部电源向内后视 镜电子设备供电时,所述太阳能供电装置所产生的电量足够支持内后视镜的电 子设备正常工作时,所述电源管理单元控制外部电源停止给锂电池组充电以及 停止向内后视镜的电子设备供电,并且控制太阳能供电装置向电子设备供电以 及给锂电池组充电。
如图 1 -2所示, 所述该汽车内后视镜的供电系统的太阳能电池板 2221贴 付在前挡风玻璃 30上,且位于前挡风玻璃 30的内侧,所述太阳能电池板长度 与前挡风玻璃的宽度相同, 长度为 0.8~1 .2m, 宽度为 5~15cm。 所述太阳能 电池板输出的电能通过一导线与内后视镜的电子设备电性连接。
所述电子设备还包括 GPS导航模块、 GSM/3G模块、 处理器、 闪存以及 内存模块, GPS导航模块、 GSM/3G模块、 处理器、 闪存以及内存模块位于 所述电路板 21。 应说明的是, 以上实施例仅用以说明本发明的技术方案而非限制, 尽管参 照较佳实施例对本发明进行了详细说明, 本领域的普通技术人员应当理解, 可 以对本发明的技术方案进行修改或者等同替换, 而不脱离本发明技术方案的精 神和范围, 其均应涵盖在本发明的权利要求范围当中。

Claims

权 利 要 求 书 WO 2014/063401 PCT/CN2012/085087
1.一种汽车内后视镜的供电系统, 该供电系统包括一个或多个锂电池组和 太阳能供电装置, 所述太阳能供电装置包括太阳能电池板以及转换电路, 其特 征在于, 该供电系统还包括一电源管理单元, 所述电源管理单元用于控制锂电 池组在太阳能供电装置产生后视镜电子设备正常工作所需的电量时关闭锂电 池组向后视镜电子设备供电。
2.根据权利要求 1所述的汽车内后视镜的供电系统, 其特征在于, 该供电 系统包括第一锂电池组和第二锂电池, 当所述太阳能供电装置产生的电量不足 以维持后视镜电子设备正常工作但又满足锂电池正常充电时,太阳能供电装置 给第一锂电池组充电,所述电源管理单元控制第二锂电池组向后视镜电子设备 供电; 或, 太阳能供电装置给第二锂电池组充电时, 电源管理单元控制第一锂 电池组向后视镜电子设备供电。
3.根据权利要求 2所述的汽车内后视镜的供电系统, 其特征在于, 当所述 太阳能供电装置产生的电量不足, 转换电路提高电压的输出, 使输出的电压能 够对锂电池组充电。
4.根据权利要求 1或 2所述的汽车内后视镜的供电系统, 其特征在于, 该 当第二锂电池组电量耗尽后, 电源管理单元控制第一锂电池组向内后视镜电子 设备供电, 太阳能供电装置给第二锂电池组充电, 或当第一锂电池组电量耗尽 后, 电源管理单元控制第二锂电池组向内后视镜电子设备供电, 太阳能供电装 置给第一锂电池组充电。
5.根据权利要求 4所述的汽车内后视镜的供电系统, 其特征在于, 在所述 后视镜电子设备停止工作时,并且太阳能供电装置产生的电量满足锂电池正常 充电时, 电源管理电源对电量低于 20%的锂电池组进行充电。
6.根据权利要求 5所述的汽车内后视镜的供电系统, 其特征在于, 所述供 电系统还包括一外部电源接口, 在所述外部电源接口接上外部电源后, 所述电 源管理单元控制外部电源向内后视镜电子设备供电, 同时电源管理单元控制外 ^电源给裡电池组充电。
7.根据权利要求 6所述的汽车内后视镜的供电系统, 其特征在于, 所述电 源管理单元控制外部电源先给电量较低的锂电池组充电,待电量较低的锂电池 权 利 要 求 书
WO 2014/063401 PCT/CN2012/085087 组充电充满后再向电量较高的锂电池组充电。
8.根据权利要求 1所述的汽车内后视镜的供电系统, 其特征在于, 所述太 阳能电池板贴付在前挡风玻璃上, 且位于前挡风玻璃的车内侧。
9.根据权利要求 8所述的汽车内后视镜的供电系统, 其特征在于, 所述太 阳能电池板长度与前挡风玻璃的宽度相同, 宽度为 5~15cm。
10.—种汽车内后视镜, 包括一反光镜, 在所述反光镜内侧设置有电子设 备,所述电子设备包括一电路板以及向该电路板供电的供电系统,其特征在于, 所述供电系统为如权利要求 1 -9任一所述汽车内后视镜的供电系统。
PCT/CN2012/085087 2012-10-26 2012-11-23 汽车内后视镜的供电系统和汽车内后视镜 Ceased WO2014063401A1 (zh)

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