WO2017148118A1 - Photovoltaic charging cellphone case - Google Patents

Photovoltaic charging cellphone case Download PDF

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Publication number
WO2017148118A1
WO2017148118A1 PCT/CN2016/097199 CN2016097199W WO2017148118A1 WO 2017148118 A1 WO2017148118 A1 WO 2017148118A1 CN 2016097199 W CN2016097199 W CN 2016097199W WO 2017148118 A1 WO2017148118 A1 WO 2017148118A1
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circuit
charging
photovoltaic
maximum power
power point
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PCT/CN2016/097199
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French (fr)
Chinese (zh)
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潘加龙
郑鲁杰
陈庆威
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中兴通讯股份有限公司
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Priority to CN201610122510.5A priority patent/CN107149250A/en
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2017148118A1 publication Critical patent/WO2017148118A1/en

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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45CPURSES; LUGGAGE; HAND CARRIED BAGS
    • A45C11/00Receptacles for purposes not provided for in groups A45C1/00 - A45C9/00

Abstract

A photovoltaic charging cellphone case (1), comprising: a photovoltaic panel group (11), a maximum power point tracking circuit (12) and a charging circuit (13). The photovoltaic panel group (11) is configured to convert light energy into electric energy, and the maximum power point tracking circuit (12) is configured to track the maximum power point of the photovoltaic panel group (11) and output the electric energy of the maximum power point to a battery of a device via the charging circuit (13), wherein the maximum power point tracking circuit (12) is connected to the photovoltaic panel group (11). The maximum power point tracking circuit (12) is integrated in the photovoltaic charging cellphone case (1) to track the maximum power point of the photovoltaic panel group (11) so as to realize the maximum power output, so that the charging voltage and current can both be matched reasonably, thereby solving the related problem that a photovoltaic design of a cellphone protection case needs to independently carry a control apparatus, and also shortening the charging time, improving the charging efficiency and enhancing the user experience.

Description

一种光伏充电手机套Photovoltaic charging mobile phone case 技术领域Technical field

本文涉及但不限于手机套领域,涉及一种光伏充电手机套。This article refers to, but is not limited to, the field of mobile phone cases, and relates to a photovoltaic charging mobile phone case.

背景技术Background technique

为了增强手机套的功能,相关技术提供了具有光伏发电的手机保护套,目前具有光伏发电的手机保护套,一种是利用选择好的太阳能光伏面板直接给手机充电;另一种是利用光伏发电控制装置控制光伏充电,一般这样的控制器是独立存在的。In order to enhance the function of the mobile phone case, the related technology provides a mobile phone protective cover with photovoltaic power generation, and currently has a mobile phone protective cover for photovoltaic power generation, one is to directly charge the mobile phone by using the selected solar photovoltaic panel; the other is to use photovoltaic power generation. The control device controls the photovoltaic charging, and generally such a controller is independent.

对于没有控制装置的光伏充电,从安全性角度考虑是不可行的,电池电量充电过程、电池寿命都没有得到合理的控制。对于有控制装置的光伏充电,其控制器都是独立的,这对于野外远行的人携带是及其不方便的,而且控制器大小不一,内部电路设计复杂,价格高,充电效率低下;如果旅行者忘记带控制器,这样具有光伏控制功能的手机保护套就失去了它的功能。即便是带了这样的充电器,也存在以下问题:一是体积大,不方便;二是充电方案效率低下,旅行者需要长时间中途停留给手机充电。因此相关手机保护套的光伏设计需要单独携带控制装置,不方便用户使用。For photovoltaic charging without a control device, it is not feasible from the perspective of safety, and the battery charging process and battery life are not properly controlled. For photovoltaic charging with control devices, the controllers are independent, which is inconvenient for people traveling in the wild, and the controllers are of different sizes, the internal circuit design is complicated, the price is high, and the charging efficiency is low; If the traveler forgets to bring the controller, the mobile phone case with photovoltaic control loses its function. Even with such a charger, there are the following problems: First, it is bulky and inconvenient; second, the charging scheme is inefficient, and the traveler needs to stop for a long time to charge the mobile phone. Therefore, the photovoltaic design of the relevant mobile phone case needs to carry the control device separately, which is inconvenient for the user to use.

发明内容Summary of the invention

以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

本发明实施例提供了一种光伏充电手机套,解决了相关手机保护套的光伏设计需要单独携带控制装置的问题。Embodiments of the present invention provide a photovoltaic charging mobile phone case, which solves the problem that the photovoltaic design of the related mobile phone protective cover needs to carry the control device separately.

本发明实施例提供了一种光伏充电手机套,其包括:光伏面板组、最大功率点跟踪电路和充电电路;Embodiments of the present invention provide a photovoltaic charging mobile phone case, which includes: a photovoltaic panel group, a maximum power point tracking circuit, and a charging circuit;

所述光伏面板组设置为将光能转换为电能;The photovoltaic panel group is configured to convert light energy into electrical energy;

所述最大功率点跟踪电路设置为跟踪所述光伏面板组的最大功率点,并将所述最大功率点的电能通过所述充电电路输出至设备电池;其中,所述最 大功率点跟踪电路与所述光伏面板组连接。The maximum power point tracking circuit is configured to track a maximum power point of the photovoltaic panel group, and output the electrical energy of the maximum power point to the device battery through the charging circuit; wherein the most A high power point tracking circuit is coupled to the photovoltaic panel set.

可选地,所述光伏充电手机套还包括:第一防反二极管和第二防反二极管;Optionally, the photovoltaic charging mobile phone case further includes: a first anti-reverse diode and a second anti-reverse diode;

所述第一防反二极管设置在所述光伏面板组与所述最大功率点跟踪电路之间;The first anti-reverse diode is disposed between the photovoltaic panel group and the maximum power point tracking circuit;

所述第二防反二极管设置在所述最大功率点跟踪电路与所述充电电路之间。The second anti-reverse diode is disposed between the maximum power point tracking circuit and the charging circuit.

可选地,所述光伏面板组包括至少两个光伏面板,每个光伏面板的电能输出端分别并联连接至所述最大功率点跟踪电路,所述光伏面板为高效多晶硅玻璃层压太阳能电池板。Optionally, the photovoltaic panel group includes at least two photovoltaic panels, and the power output ends of each photovoltaic panel are respectively connected in parallel to the maximum power point tracking circuit, and the photovoltaic panel is a high efficiency polycrystalline silicon laminated solar panel.

可选地,所述光伏充电手机套还包括:充电控制电路和电池电压检测电路;Optionally, the photovoltaic charging mobile phone case further includes: a charging control circuit and a battery voltage detecting circuit;

电池电压检测电路所述充电控制电路设置为对所述最大功率点跟踪电路的输出电能进行充电控制;a battery voltage detecting circuit, wherein the charging control circuit is configured to perform charging control on an output power of the maximum power point tracking circuit;

所述电池电压检测电路设置为对所述设备电池的电池电压及充电控制电路输出的充电电流进行检测,根据检测结果控制所述充电控制电路;The battery voltage detecting circuit is configured to detect a battery voltage of the device battery and a charging current output by the charging control circuit, and control the charging control circuit according to the detection result;

其中,所述充电控制电路设置在所述最大功率点跟踪电路与所述充电电路之间;所述电池检测电与所述充电控制电路连接。The charging control circuit is disposed between the maximum power point tracking circuit and the charging circuit; and the battery detecting power is connected to the charging control circuit.

可选地,所述充电控制电路包括由多个MOS管组成的开关电路及主芯片;其中,所述多个MOS管的栅极控制电压由所述主芯片提供。Optionally, the charging control circuit includes a switching circuit composed of a plurality of MOS transistors and a main chip; wherein a gate control voltage of the plurality of MOS transistors is provided by the main chip.

可选地,所述最大功率点跟踪电路采用集成电路的形式设置在所述光伏充电手机套内。Optionally, the maximum power point tracking circuit is disposed in the photovoltaic charging mobile phone case in the form of an integrated circuit.

可选地,所述最大功率点用于跟踪环境检测电路,及同步压降电路;所述最大功率点跟踪电路是设置为检测所述光伏面板组的环境温度及光照强度;Optionally, the maximum power point is used to track an environment detection circuit, and a synchronous voltage drop circuit; the maximum power point tracking circuit is configured to detect an ambient temperature and a light intensity of the photovoltaic panel group;

所述同步压降电路设置为在所述环境检测电路的控制下对所述光伏面板组的输出电压进行压降处理。The synchronous voltage drop circuit is configured to perform a voltage drop process on an output voltage of the photovoltaic panel group under the control of the environment detecting circuit.

可选地,所述环境检测电路包括充电管理芯片,以及热敏电阻和/或温度 检测器;Optionally, the environment detection circuit includes a charge management chip, and a thermistor and/or temperature Detector;

其中,所述热敏电阻设置为检测环境温度,所述温度检测器用于检测环境温度,所述充电管理芯片用于检测所述光伏面板组输出功率。The thermistor is configured to detect an ambient temperature, the temperature detector is configured to detect an ambient temperature, and the charge management chip is configured to detect the output power of the photovoltaic panel group.

可选地,所述热敏电阻由非线性热敏电阻与匹配电阻并列后,与分压电阻串联形成。Optionally, the thermistor is formed by a non-linear thermistor and a matching resistor, and is formed in series with the voltage dividing resistor.

可选地,所述最大功率点跟踪电路包括:同步压降电路及控制电路,所述同步压降电路设置为对所述光伏面板组的输出电压进行压降处理,所述控制电路设置为检测工作环境,根据所述工作环境控制所述同步压降电路。Optionally, the maximum power point tracking circuit includes: a synchronous voltage drop circuit and a control circuit, wherein the synchronous voltage drop circuit is configured to perform voltage drop processing on an output voltage of the photovoltaic panel group, and the control circuit is configured to detect The working environment controls the synchronous voltage drop circuit according to the working environment.

可选地,所述控制电路是设置为:通过控制芯片实时采集工作环境,根据所述工作环境控制所述同步压降电路的开通与关断,所述工作环境包括外界环境温度、设备电池电量电压、所述光伏面板组的输出电压电流。Optionally, the control circuit is configured to: collect a working environment in real time through a control chip, and control turn-on and turn-off of the synchronous voltage drop circuit according to the working environment, where the working environment includes an ambient temperature and a device battery power. Voltage, output voltage and current of the photovoltaic panel group.

本发明实施例的有益效果:Advantageous effects of embodiments of the present invention:

本发明实施例提供了一种光伏充电手机套,通过在手机套内集成最大功率点跟踪电路跟踪光伏面板最大功率点,实现最大功率输出,这样充电电压和电流都能够得到合理的匹配,解决了相关手机保护套的光伏设计需要单独携带控制装置的问题,同时,缩短了充电时间,提高了充电效率,增强了用户的使用体验。在阅读并理解了附图和详细描述后,可以明白其它方面。The embodiment of the invention provides a photovoltaic charging mobile phone sleeve, which can track the maximum power point of the photovoltaic panel by integrating the maximum power point tracking circuit in the mobile phone sleeve, thereby realizing the maximum power output, so that the charging voltage and the current can be reasonably matched, and the solution is solved. The photovoltaic design of the related mobile phone case requires the problem of carrying the control device separately, and at the same time, the charging time is shortened, the charging efficiency is improved, and the user experience is enhanced. Other aspects will be apparent upon reading and understanding the drawings and detailed description.

附图说明DRAWINGS

图1为本申请第一实施例提供的光伏充电手机套的结构示意图;1 is a schematic structural diagram of a photovoltaic charging mobile phone case provided by a first embodiment of the present application;

图2为本申请第二实施例提供的光伏充电手机套的示意图;2 is a schematic diagram of a photovoltaic charging mobile phone case provided by a second embodiment of the present application;

图3为本申请第三实施例提供的光伏充电手机套的结构示意图;3 is a schematic structural diagram of a photovoltaic charging mobile phone case provided by a third embodiment of the present application;

图4为本申请第三实施例中的光伏充电手机套的电路连接示意图;4 is a schematic diagram of circuit connection of a photovoltaic charging mobile phone case in a third embodiment of the present application;

图5为本申请第三实施例中的充电电路开光管变化示意图;FIG. 5 is a schematic diagram of a change of a light-emitting tube of a charging circuit in a third embodiment of the present application; FIG.

图6为本申请第四实施例提供的光伏充电手机套的结构示意图。 FIG. 6 is a schematic structural diagram of a photovoltaic charging mobile phone case according to a fourth embodiment of the present application.

具体实施方式detailed description

现通过具体实施方式结合附图的方式对本申请做出进一步的诠释说明。The present application will be further illustrated by the specific embodiments in conjunction with the accompanying drawings.

第一实施例:First embodiment:

图1为本申请第一实施例提供的光伏充电手机套的结构示意图,由图1可知,在本实施例中,光伏充电手机套1包括:光伏面板组11、MPPT(Maximum Power Point Tracking,最大功率点跟踪)电路12和充电电路13;FIG. 1 is a schematic structural diagram of a photovoltaic charging mobile phone case provided by the first embodiment of the present invention. As shown in FIG. 1 , in the embodiment, the photovoltaic charging mobile phone case 1 includes: a photovoltaic panel group 11 and a MPPT (Maximum Power Point Tracking). Power point tracking circuit 12 and charging circuit 13;

光伏面板组11设置为将光能转换为电能;MPPT电路12设置为跟踪光伏面板组11的最大功率点,并将最大功率点的电能通过充电电路13输出至设备电池;所述MPPT电路12与所述光伏面板组11连接。The photovoltaic panel group 11 is arranged to convert light energy into electrical energy; the MPPT circuit 12 is arranged to track the maximum power point of the photovoltaic panel group 11 and output the electrical energy of the maximum power point to the device battery through the charging circuit 13; the MPPT circuit 12 and The photovoltaic panel group 11 is connected.

可选地,上述实施例中的光伏充电手机套1还包括:第一防反二极管和第二防反二极管;其中,第一防反二极管设置在光伏面板组与MPPT电路之间,第二防反二极管设置在MPPT电路与充电电路之间。Optionally, the photovoltaic charging mobile phone case 1 in the above embodiment further includes: a first anti-reverse diode and a second anti-reverse diode; wherein the first anti-reverse diode is disposed between the photovoltaic panel group and the MPPT circuit, and the second protection The anti-diode is disposed between the MPPT circuit and the charging circuit.

可选地,上述实施例中的光伏面板组11包括至少两个光伏面板,每个光伏面板的电能输出端分别并联连接至MPPT电路,光伏面板为高效多晶硅玻璃层压太阳能电池板。Optionally, the photovoltaic panel group 11 in the above embodiment includes at least two photovoltaic panels, and the power output ends of each photovoltaic panel are respectively connected in parallel to the MPPT circuit, and the photovoltaic panel is a high efficiency polycrystalline silicon laminated solar panel.

可选地,上述实施例中的光伏充电手机套1还包括:充电控制电路和电池检测电;电池电压检测电路充电控制电路设置为对MPPT电路的输出电能进行充电控制,电池电压检测电路设置为对设备电池的电池电压及充电控制电路输出的充电电流进行检测,根据检测结果控制充电控制电路;Optionally, the photovoltaic charging mobile phone case 1 in the above embodiment further includes: a charging control circuit and a battery detecting power; the battery voltage detecting circuit charging control circuit is configured to perform charging control on the output power of the MPPT circuit, and the battery voltage detecting circuit is set to Detecting a battery voltage of the device battery and a charging current output by the charging control circuit, and controlling the charging control circuit according to the detection result;

其中,所述充电控制电路设置在所述最大功率点跟踪电路与所述充电电路之间;所述电池检测电与所述充电控制电路连接。The charging control circuit is disposed between the maximum power point tracking circuit and the charging circuit; and the battery detecting power is connected to the charging control circuit.

可选地,上述实施例中的充电控制电路包括由多个MOS管组成的开关电路及主芯片,其中,多个MOS管的栅极控制电压由主芯片提供。Optionally, the charging control circuit in the above embodiment includes a switching circuit composed of a plurality of MOS transistors and a main chip, wherein gate control voltages of the plurality of MOS transistors are provided by the main chip.

可选地,上述实施例中的MPPT电路12采用集成电路的形式设置在光伏充电手机套内。Optionally, the MPPT circuit 12 in the above embodiment is disposed in the form of an integrated circuit in a photovoltaic charging mobile phone case.

可选地,上述实施例中,所述最大功率点用于跟踪环境检测电路,及同步压降电路;MPPT电路12是设置为检测光伏面板组的环境温度及光照强度;同步压降电路设置为在环境检测电路的控制下对光伏面板组的输出电压 进行压降处理。Optionally, in the above embodiment, the maximum power point is used to track the environment detection circuit and the synchronous voltage drop circuit; the MPPT circuit 12 is configured to detect the ambient temperature and the illumination intensity of the photovoltaic panel group; and the synchronous voltage drop circuit is set to Output voltage to the photovoltaic panel group under the control of the environmental detection circuit Perform pressure drop processing.

可选地,上述实施例中的环境检测电路包括充电管理芯片,以及热敏电阻和/或温度检测器;Optionally, the environment detecting circuit in the above embodiment includes a charging management chip, and a thermistor and/or a temperature detector;

其中,所述热敏电阻设置为检测环境温度,所述温度检测器设置为检测环境温度,所述充电管理芯片设置为检测光伏面板组输出功率的。The thermistor is configured to detect an ambient temperature, the temperature detector is configured to detect an ambient temperature, and the charge management chip is configured to detect a photovoltaic panel group output power.

可选地,上述实施例中的热敏电阻由非线性热敏电阻与匹配电阻并列后,与分压电阻串联形成。Optionally, the thermistor in the above embodiment is formed by juxtaposing the nonlinear thermistor and the matching resistor in series with the voltage dividing resistor.

可选地,上述实施例中的MPPT电路12包括:同步压降电路及控制电路,同步压降电路设置为对光伏面板组的输出电压进行压降处理,控制电路设置为检测工作环境,根据工作环境控制同步压降电路。Optionally, the MPPT circuit 12 in the foregoing embodiment includes: a synchronous voltage drop circuit and a control circuit, wherein the synchronous voltage drop circuit is configured to perform voltage drop processing on the output voltage of the photovoltaic panel group, and the control circuit is configured to detect the working environment, according to the work. Environmentally controlled synchronous voltage drop circuit.

可选地,上述实施例中的控制电路是设置为:通过控制芯片实时采集工作环境,根据工作环境控制同步压降电路的开通与关断,工作环境包括外界环境温度、设备电池电量电压、光伏面板组的输出电压电流。Optionally, the control circuit in the foregoing embodiment is configured to: collect the working environment in real time through the control chip, and control the turn-on and turn-off of the synchronous voltage drop circuit according to the working environment, and the working environment includes the ambient temperature, the device battery voltage, and the photovoltaic The output voltage and current of the panel group.

第二实施例:Second embodiment:

现结合具体应用场景对本发明实施例做进一步的诠释说明。The embodiments of the present invention are further explained in conjunction with specific application scenarios.

本实施例针对传统的光伏充电方案效率不高的缺陷,由于其控制系统精度不高,充电效率低下,而且对于四季温差大的地区,光伏充电效率将会受到很大的影响。在实际应用中,由于光伏面板有其特有的光伏充电曲线,最适合的充电电压和电流就是在其最大功率点处,这样充电电压和电流都能够得到合理的匹配,进而缩短充电时间,提高充电效率。This embodiment is directed to the defect that the conventional photovoltaic charging scheme is not efficient, because the control system has low precision, the charging efficiency is low, and the photovoltaic charging efficiency is greatly affected in regions with large temperature differences in the four seasons. In practical applications, since the photovoltaic panel has its own unique photovoltaic charging curve, the most suitable charging voltage and current are at its maximum power point, so that the charging voltage and current can be reasonably matched, thereby shortening the charging time and improving the charging. effectiveness.

本发明实施例提供的光伏充电手机套包括:光伏充电手机套正反面的两块光伏面板,MPPT电路,充电控制电路,电池电压检测电路,充电电路,在本实施例中,光伏面板输出的电能通过最大功率跟踪电路输入到充电电路中再充入到手机电池中。这种光伏面板采用技术成熟、低价格的高效多晶硅玻璃层压太阳能电池板,其内置光电管,转换效率能够达到15%,相比较目前的8%的转换效率,提高了很多,而且比传统的太阳能面板制造成本降低了10%,一举解决了便携和高效两者不可兼得的难题。 The photovoltaic charging mobile phone case provided by the embodiment of the invention comprises: two photovoltaic panels on the front and back of the photovoltaic charging mobile phone case, an MPPT circuit, a charging control circuit, a battery voltage detecting circuit, a charging circuit, and in the embodiment, the photovoltaic panel outputs the electric energy It is input to the charging circuit through the maximum power tracking circuit and then charged into the mobile phone battery. This kind of photovoltaic panel adopts high-efficiency polycrystalline glass laminated solar panel with mature technology and low price. Its built-in photocell can achieve conversion efficiency of 15%, which is much higher than the current 8% conversion efficiency. Solar panel manufacturing costs have been reduced by 10%, solving the problem of both portable and efficient.

本发明实施例采用了具有宽温度补偿恒压式的MPPT电路,实时追踪太阳能面板的最大功率点,来发挥光伏面板的最大输出功效。通过对MPPT外围电路的输出反馈匹配控制,实现在一定温度条件下,光伏面板的最大输出功率实时跟随光照强度变化;通过增加负温度系数电阻,实现在一定光照强度条件下,光伏面板的最大输出功率实时跟随外界温度变化,通过上述两者的结合使得MPPT电路能够根据外界光照强度和环境温度的变化实时跟踪光伏面板的最大功率点,实现其最大功率的输出。最大功率点跟踪电路能够在最大功率点状态下输出对应的电压和电流,可对电池实现预充电、恒流充电、恒压充电及浮充充电流程,最大功率的输出再通过充电控制电路给手机电池充电。这种输出控制方法对于外界光照强弱和温度变化都能够以最大功率输出,提高了充电速度和效率,解决了传统光伏发电充电慢、效率低下的现状,其实用性、可靠性都能够得到提高,而且电路设计简单、集成在手机保护套上,这对于旅行者来说携带方便且充电时间得以缩短。The embodiment of the invention adopts an MPPT circuit with wide temperature compensation constant voltage type, and tracks the maximum power point of the solar panel in real time to exert the maximum output efficiency of the photovoltaic panel. Through the output feedback matching control of the MPPT peripheral circuit, the maximum output power of the photovoltaic panel follows the change of the illumination intensity in real time under certain temperature conditions; by increasing the negative temperature coefficient resistance, the maximum output of the photovoltaic panel under certain light intensity conditions is realized. The power follows the external temperature change in real time. Through the combination of the above two, the MPPT circuit can track the maximum power point of the photovoltaic panel in real time according to the change of external light intensity and ambient temperature, and realize the output of its maximum power. The maximum power point tracking circuit can output corresponding voltage and current at the maximum power point state, and can implement pre-charging, constant current charging, constant voltage charging and floating charging charging processes for the battery, and the maximum power output is then sent to the mobile phone through the charging control circuit. Charging batteries. This output control method can output the maximum power for external light intensity and temperature change, improve the charging speed and efficiency, solve the current situation of slow charging and low efficiency of traditional photovoltaic power generation, and its practicality and reliability can be improved. And the circuit design is simple and integrated on the mobile phone case, which is convenient for the traveler and the charging time is shortened.

本发明实施例所要解决的技术问题是针对旅行中的人们如何便捷使用光伏发电,高效、快速地给手机充电的情景,提出了高效、低成本的手机光伏面板最大功率充电技术。将太阳能转变为电能,经过最大功率跟踪电路,使得输出的电压与电流通过充电控制电路输入到手机电池中。The technical problem to be solved by the embodiments of the present invention is to provide a high-efficiency, low-cost mobile phone photovoltaic panel maximum power charging technology for how to conveniently use photovoltaic power generation during travel to efficiently and quickly charge the mobile phone. The solar energy is converted into electrical energy, and the maximum power tracking circuit is passed so that the output voltage and current are input to the mobile phone battery through the charging control circuit.

请参考图2,图2所示为本实施例提供设计的光伏充电手机套示意图,其中201、202表示光伏充电手机套上正反两面的太阳能光伏面板,由于光伏充电手机套面积大小的限制,本实施例的太阳能光伏面板采用的是高效多晶硅玻璃层压太阳能电池板,其内置光电管,转换效率较高。为了降压给手机电池充电以及提供给控制芯片所需的供电电压,此处采用工作电压为9V,工作电流为220mA的光伏面板,而且在光伏充电手机套上正反两面采用两块光伏面板并联连接,以此达到降压给手机电池与充电控制电路所需的理想工作条件为5V额定充电电压和440mA额定充电电流。203表示的空间用于放置集成电路,因本实施例的电路简洁高效,占用空间不大,所以集成在光伏充电手机套上是可行的;204表示充电电路,在使用中只要将线路接入或接触到手机充电端口即可。205表示放置手机的内部空间;Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a photovoltaic charging mobile phone case designed according to the embodiment. 201 and 202 represent solar photovoltaic panels on the front and back sides of the photovoltaic charging mobile phone. Due to the limitation of the size of the photovoltaic charging mobile phone cover, The solar photovoltaic panel of the embodiment adopts a high-efficiency polycrystalline silicon glass laminated solar panel, and the built-in photocell has high conversion efficiency. In order to reduce the charging of the mobile phone battery and the supply voltage required for the control chip, a photovoltaic panel with a working voltage of 9V and a working current of 220mA is used, and two photovoltaic panels are connected in parallel on the front and back sides of the photovoltaic charging mobile phone case. The ideal operating conditions required to connect the buck to the cell phone battery and charge control circuit are 5V rated charging voltage and 440mA rated charging current. The space indicated by 203 is used for placing an integrated circuit. Since the circuit of the embodiment is simple and efficient, and the occupied space is not large, it is feasible to be integrated on the photovoltaic charging mobile phone case; 204 denotes a charging circuit, and the line is connected or used in use. Just touch the phone charging port. 205 indicates that the internal space of the mobile phone is placed;

第三实施例: Third embodiment:

图3所示为本实施例的框架示意图,由图3可知,光伏面板21输出的电能经过MPPT电路22输出到充电控制电路24,MPPT电路22中的主芯片支持5V-28V范围的输入电压,在2.1V-26V输出电压范围内设置5V的电压给充电控制电路24,其中MPPT电路22通过面板温度检测电路25实时采集检测光伏面板21上的环境温度和光照强度,从而追踪最大功率点,实现最大充电效率。充电控制电路24是由一系列MOS管组成的开关电路,其栅极控制电压由主芯片提供,这里充电控制电路24的主芯片可以是单片机、RAM芯片或其他能够起控制功能的IC芯片即可。电池检测电路26将充电控制电路24输出的电能进行负反馈检测,再输入到IC((Integrated Circuit,集成电路)控制主芯片中,使其合理的对MOS管进行开通与关断,防止充电电压波动与电池电量饱和的问题,检测输出的电能通过充电线路连接到手机端口给电池充电。本发明实施例中的集成控制电路体积小,设计在保护套背面,不用携带额外的充电装置。3 is a schematic view of the frame of the present embodiment. As can be seen from FIG. 3, the power outputted by the photovoltaic panel 21 is output to the charging control circuit 24 via the MPPT circuit 22, and the main chip in the MPPT circuit 22 supports an input voltage in the range of 5V-28V. The voltage of 5V is set in the output voltage range of 2.1V-26V to the charging control circuit 24, wherein the MPPT circuit 22 collects and detects the ambient temperature and the illumination intensity on the photovoltaic panel 21 in real time through the panel temperature detecting circuit 25, thereby tracking the maximum power point. Maximum charging efficiency. The charging control circuit 24 is a switching circuit composed of a series of MOS tubes, and the gate control voltage thereof is provided by the main chip. Here, the main chip of the charging control circuit 24 can be a single chip microcomputer, a RAM chip or other IC chip capable of controlling functions. . The battery detecting circuit 26 performs negative feedback detection on the electric energy outputted by the charging control circuit 24, and then inputs it into the IC ((Integrated Circuit) control main chip, so that the MOS tube is turned on and off reasonably to prevent the charging voltage. The problem of fluctuation and battery saturation is that the detected output power is connected to the mobile phone port through the charging line to charge the battery. The integrated control circuit in the embodiment of the invention is small in size, designed on the back of the protective cover, and does not need to carry an additional charging device.

图4为本发明可选实例的光伏充电手机套的集成电路图,该实施例中的光伏充电手机套具有最大功率光伏发电功能。4 is an integrated circuit diagram of a photovoltaic charging mobile phone case according to an alternative example of the present invention. The photovoltaic charging mobile phone case in this embodiment has a maximum power photovoltaic power generation function.

如图4所示,模块401表示的是采用两块太阳能光伏面板S1、S2并联连接采集太阳能进行光电转换,光伏面板输出端串联防反二极管VD1、VD2,目的是防止后续电流向光伏面板逆流。这里采用工作电压为9V,工作电流为220mA多晶硅太阳能面板,两块并联连接后得到9V额定输出电压和440mA额定输出电流,再经过MPPT电路中的同步Buck电路降压到5V后给手机充电。As shown in FIG. 4, the module 401 represents two solar photovoltaic panels S1, S2 connected in parallel to collect solar energy for photoelectric conversion, and the photovoltaic panel output end series anti-reverse diodes VD1, VD2, in order to prevent the subsequent current from flowing back to the photovoltaic panel. Here, the working voltage is 9V, and the working current is 220mA polycrystalline solar panel. After two parallel connections, the 9V rated output voltage and 440mA rated output current are obtained, and then the battery is charged after the voltage is reduced to 5V through the synchronous Buck circuit in the MPPT circuit.

模块402表示的是宽温度补偿的光伏最大功率点跟踪电路,通过非线性热敏电阻(Resistance Temperature Coefficient,RTC)与匹配电阻R4并联,再与R1、R2串联得到近似线性曲线的热敏电阻来采集面板上环境温度,此采集的温度值与经过分压电阻R1和R2分压后的值来调节最大功率状态下输出对应的电压、电流值。本申请可以采用RTC热敏电阻检测,也可以采用(Temperature Sensor,TS)温度检测器(如图4所示,在TS处采用TS温度检测器),本发明实施例采用任何温度检测器都可实现,不局限于此。The module 402 represents a wide temperature compensated photovoltaic maximum power point tracking circuit, which is connected in parallel with the matching resistor R4 through a nonlinear thermistor (RTC), and then connected in series with R1 and R2 to obtain a thermistor with an approximate linear curve. The ambient temperature on the panel is collected, and the collected temperature value and the value divided by the voltage dividing resistors R1 and R2 are used to adjust the voltage and current values corresponding to the output in the maximum power state. The present application can use RTC thermistor detection, or can use a (Temperature Sensor, TS) temperature detector (as shown in FIG. 4, using a TS temperature detector at the TS), and any temperature detector can be used in the embodiment of the present invention. Implementation is not limited to this.

Q1、Q2、L1、C4和C5组成同步降压Buck电路模式,当电池板的输出 功率因光照强度变化时,充电管理(Battery Quiescent,BQ)芯片会自动控制外部开关管,来适度的降低充电电流维持充电电压的恒定,如果太阳能光伏面板不能提供足够的功率输出时,充电电流就会降为零。采样电阻Rs根据所需要的电流选择不同的电阻值。电阻R8、R9、R10和MOS管Q5用来设定恒压充电电压和浮充电压,恒压充电电压设置为5V,恒压充电时Q5导通,灯D1亮;浮充充电电压设置为4.35V,浮充时Q5关断,灯D2亮;如果充电过程中系统出现不良状况时,灯D1、D2同时亮,提醒停止充电,保证了整个系统的可靠运行。模块402输出端串联防反二极管VD3,目的是防止后续电流向模块402。Q1, Q2, L1, C4 and C5 form a synchronous buck Buck circuit mode when the output of the panel When the power changes due to the light intensity, the Battery Quiescent (BQ) chip will automatically control the external switch to moderately reduce the charging current to maintain a constant charging voltage. If the solar photovoltaic panel cannot provide sufficient power output, the charging current will be Will drop to zero. The sampling resistor Rs selects different resistance values depending on the required current. Resistors R8, R9, R10 and MOS tube Q5 are used to set the constant voltage charging voltage and floating charging voltage. The constant voltage charging voltage is set to 5V. When constant voltage charging, Q5 is turned on, and the lamp D1 is on; the floating charging voltage is set to 4.35. V, when floating charge Q5 is turned off, lamp D2 is on; if there is a bad condition in the system during charging, the lamps D1 and D2 are on at the same time, reminding to stop charging, ensuring reliable operation of the whole system. The output of module 402 is connected in series with anti-reverse diode VD3 in order to prevent subsequent current flow to module 402.

模块403表示的是充电控制电路和电池电压检测电路,该电路设计进一步对预充电、恒流充电和恒压充电起到了很好的控制作用。电池检测电路由R16、R17和Ct组成,当检测到的电池电压低于充电电压,并且充电电流低于恒流充电电流时,第三开关管Q3导通,并且由R13提供预充电电流,第四开关管Q4则关断;当充电电流达到恒流充电电流以上时,关断Q3,开通Q4;如果充电过程中系统出现不良状况时,控制芯片MCU(Micro Control Unit,微控制单元)将Q3和Q4都关断,保证了系统的安全。Module 403 represents the charge control circuit and the battery voltage detection circuit. The circuit design further controls the precharge, constant current charge and constant voltage charge. The battery detection circuit is composed of R16, R17 and Ct. When the detected battery voltage is lower than the charging voltage and the charging current is lower than the constant current charging current, the third switching transistor Q3 is turned on, and the pre-charging current is provided by R13. The four-switch Q4 is turned off; when the charging current reaches the constant current charging current, Q3 is turned off and Q4 is turned on; if the system has a bad condition during charging, the control chip MCU (Micro Control Unit) will be Q3. Both Q4 and Q4 are turned off to ensure the safety of the system.

图5所示了最大功率点跟踪电路中输出端开关管驱动波形图与充电电流波形图,图5中,横坐标时间单位为微秒(time/uSecs),图中每格为1us(1uSecs/div)。第一开关管Q1、第二开关管Q2与电感L1组成同步降压Buck电路,其栅极驱动电压VGS(Q1)、VGS(Q2)处于交替导通状态,并留有一定的死区时间,以便第二开关管Q2实现零电压导通,这里采用固有开关频率为f=600KHz,经过储能电感L1的充电电流可达到400mA。Figure 5 shows the waveform diagram of the output switching transistor and the charging current waveform in the maximum power point tracking circuit. In Figure 5, the time unit of the abscissa is microseconds (time/uSecs), and each cell in the figure is 1us (1uSecs/ Div). The first switching transistor Q1, the second switching transistor Q2 and the inductor L1 form a synchronous buck Buck circuit, and the gate driving voltages VGS(Q1) and VGS(Q2) are alternately turned on, and a certain dead time is left. In order to achieve zero voltage conduction of the second switching transistor Q2, the inherent switching frequency is f=600KHz, and the charging current through the energy storage inductor L1 can reach 400mA.

可选地,本发明实例的参数可以做如下设置:太阳能光伏面板额定工作电压设置为9VDC;输出电压设置为5VDC;输出电流为220mA,最大功率控制电路中主芯片采用BQ24650,输出电流最大设置为1A;热敏电阻RTC为470KΩ/25℃;分压电阻R1为64.9K,R2为10K;电感L1为15uH;C4为10uF;检测电阻Rs为40mΩ;第一开关管Q1、第二开关管Q2采用集成MOS管Si7288,开关频率为600KHz;输出匹配电阻R8为34.8K、R9为10.7K、R10为10K;Q3、Q4、Q5为2N7002;R16为30K;R17为10K;主控芯片 MCU采用单片机STC15F104W。Optionally, the parameters of the example of the present invention can be set as follows: the rated working voltage of the solar photovoltaic panel is set to 9 VDC; the output voltage is set to 5 VDC; the output current is 220 mA, and the main chip in the maximum power control circuit is BQ24650, and the output current is set to a maximum of 1A; thermistor RTC is 470KΩ/25°C; the voltage dividing resistor R1 is 64.9K, R2 is 10K; the inductance L1 is 15uH; the C4 is 10uF; the detection resistance Rs is 40mΩ; the first switching transistor Q1 and the second switching transistor Q2 Adopt integrated MOS tube Si7288, switching frequency is 600KHz; output matching resistor R8 is 34.8K, R9 is 10.7K, R10 is 10K; Q3, Q4, Q5 are 2N7002; R16 is 30K; R17 is 10K; main control chip The MCU uses the single-chip STC15F104W.

本发明实施例通过采用最大功率点追踪电路,可比传统的光伏充电效率挺高20%至30%左右,这对于应用在光伏充电手机套上的小功率的光伏面板具有很大的开发意义。By adopting the maximum power point tracking circuit, the embodiment of the present invention can be 20% to 30% higher than the conventional photovoltaic charging efficiency, which has great development significance for the low-power photovoltaic panel applied on the photovoltaic charging mobile phone case.

第四实施例:Fourth embodiment:

对于光伏发电效率的利用,也可采用简单易行的方法,如6所示,直接利用具有模数转换器(Analog-to-Digital Converter,ADC)采集功能的主控芯片MCU控制器67,采集太阳能光伏面板61电压、电流值、手机电池的电量以及外界环境温度来控制同步Buck电路68,实现最大功率点追踪(MPPT)功能。For the utilization of photovoltaic power generation efficiency, a simple and easy method can also be adopted, as shown in FIG. 6, directly using the main control chip MCU controller 67 having an analog-to-digital converter (ADC) acquisition function, and collecting The solar photovoltaic panel 61 voltage, current value, battery power of the mobile phone, and ambient temperature control the synchronous Buck circuit 68 to achieve maximum power point tracking (MPPT).

应用此方案追踪光伏的最大功率,在于主控芯片实时采集外界环境温度、光伏面板的电压和电流值,来计算面板的输出功率,通过这一次检测得到的功率与上一次的功率进行比较,确定较大功率状态下的电压、电流值,主控芯片在最大功率状态下控制同步Buck电路中的开关管来给手机电池充电。这种控制方案中的充电电压对于恒压充电不能保持电压恒定;充电电流对于恒流充电不能保持电流恒定,而且功率变化范围大,充电时间较长,效率上也不及前述方法的最大功率追踪效果。Applying this scheme to track the maximum power of photovoltaics, the main control chip collects the ambient temperature and the voltage and current values of the photovoltaic panel in real time to calculate the output power of the panel. The power obtained by this detection is compared with the previous power to determine The voltage and current values in the large power state, the main control chip controls the switching tube in the synchronous Buck circuit to charge the mobile phone battery in the maximum power state. The charging voltage in this control scheme cannot keep the voltage constant for constant voltage charging; the charging current cannot keep the current constant for constant current charging, and the power variation range is large, the charging time is long, and the efficiency is not as high as the maximum power tracking effect of the foregoing method. .

在实际应用中,采用第三实施例提供的最大功率跟踪电路实时外界采集光照与环境温度来跟踪光伏面板最大功率点,实现最大功率输出,通过对MPPT外围电路的输出反馈匹配控制,实现在一定温度条件下,光伏面板的最大输出功率实时跟随光照强度变化;通过增加负温度系数电阻,实现在一定光照强度条件下,光伏面板的最大输出功率实时跟随外界温度变化,通过上述两者的结合使得MPPT电路能够根据外界光照强度和环境温度的变化实时跟踪光伏面板的最大功率点,实现其最大功率的输出。最大功率点跟踪电路能够在最大功率点状态下输出对应的电压和电流,可对电池实现预充电、恒流、恒压及浮充充电流程,最大功率的输出再通过充电控制电路给手机电池充电。这种输出控制方法对于外界光照强弱和温度变化都能够以最大功率输出,提高了充电速度和效率,缩短了充电时间。 In practical applications, the maximum power tracking circuit provided by the third embodiment is used to collect the illumination and ambient temperature in real time to track the maximum power point of the photovoltaic panel, and realize the maximum power output. The output feedback matching control of the MPPT peripheral circuit is realized. Under the temperature condition, the maximum output power of the photovoltaic panel follows the change of the light intensity in real time; by increasing the negative temperature coefficient resistance, under the condition of certain light intensity, the maximum output power of the photovoltaic panel follows the external temperature change in real time, and the combination of the two The MPPT circuit can track the maximum power point of the photovoltaic panel in real time according to changes in ambient light intensity and ambient temperature to achieve its maximum power output. The maximum power point tracking circuit can output corresponding voltage and current at the maximum power point state, and can realize pre-charging, constant current, constant voltage and floating charging process for the battery, and the maximum power output is used to charge the mobile phone battery through the charging control circuit. . This output control method can output the maximum power for external light intensity and temperature change, which improves the charging speed and efficiency and shortens the charging time.

第四实施例主要通过MCU控制芯片实时采集外界环境温度、电池电量电压和光伏电压、电流来控制同步Buck电路开通与关断,实现最大功率输出。该充电效率相对于传统的方案有所提高,但是输出功率变化范围大,充电时间还是较长。In the fourth embodiment, the MCU control chip collects the ambient temperature, the battery voltage, the photovoltaic voltage and the current in real time to control the turn-on and turn-off of the synchronous Buck circuit to achieve maximum power output. The charging efficiency is improved compared to the conventional scheme, but the output power varies widely and the charging time is still long.

综上可知,通过本发明实施例,至少存在以下有益效果:In summary, through the embodiments of the present invention, at least the following beneficial effects exist:

本发明实施例提供了一种光伏充电手机套,通过在手机套内集成最大功率点跟踪电路跟踪光伏面板最大功率点,实现最大功率输出,这样充电电压和电流都能够得到合理的匹配,解决了现有手机保护套的光伏设计需要单独携带控制装置的问题,同时,缩短了充电时间,提高了充电效率,增强了用户的使用体验。The embodiment of the invention provides a photovoltaic charging mobile phone sleeve, which can track the maximum power point of the photovoltaic panel by integrating the maximum power point tracking circuit in the mobile phone sleeve, thereby realizing the maximum power output, so that the charging voltage and the current can be reasonably matched, and the solution is solved. The photovoltaic design of the existing mobile phone case needs to carry the control device separately, and at the same time, the charging time is shortened, the charging efficiency is improved, and the user experience is enhanced.

本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件(例如处理器)完成,所述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地,上述实施例中的各模块/单元可以采用硬件的形式实现,例如通过集成电路来实现其相应功能,也可以采用软件功能模块的形式实现,例如通过处理器执行存储于存储器中的程序/指令来实现其相应功能。本申请不限制于任何特定形式的硬件和软件的结合。本领域的普通技术人员应当理解,可以对本申请的技术方案进行修改或者等同替换,而不脱离本申请技术方案的精神和范围,均应涵盖在本申请的权利要求范围当中。One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, executing a program stored in the memory by a processor. / instruction to achieve its corresponding function. This application is not limited to any specific combination of hardware and software. A person skilled in the art should understand that the technical solutions of the present application can be modified or equivalent, without departing from the spirit and scope of the technical solutions of the present application, and should be included in the scope of the claims of the present application.

工业实用性Industrial applicability

上述技术方案实现了最大功率输出,解决了相关手机保护套的光伏设计需要单独携带控制装置的问题,同时,缩短了充电时间,提高了充电效率,增强了用户的使用体验。 The above technical solution realizes the maximum power output, and solves the problem that the photovoltaic design of the related mobile phone protective cover needs to carry the control device separately, and at the same time, the charging time is shortened, the charging efficiency is improved, and the user experience is enhanced.

Claims (11)

  1. 一种光伏充电手机套,包括:光伏面板组、最大功率点跟踪电路和充电电路;A photovoltaic charging mobile phone set includes: a photovoltaic panel group, a maximum power point tracking circuit and a charging circuit;
    所述光伏面板组设置为将光能转换为电能;The photovoltaic panel group is configured to convert light energy into electrical energy;
    所述最大功率点跟踪电路设置为跟踪所述光伏面板组的最大功率点,并将所述最大功率点的电能通过所述充电电路输出至设备电池;其中,所述最大功率点跟踪电路与所述光伏面板组连接。The maximum power point tracking circuit is configured to track a maximum power point of the photovoltaic panel group, and output the electrical energy of the maximum power point to the device battery through the charging circuit; wherein the maximum power point tracking circuit and the The photovoltaic panel group connection.
  2. 如权利要求1所述的光伏充电手机套,所述光伏充电手机套还包括:第一防反二极管和第二防反二极管;The photovoltaic charging mobile phone case of claim 1 further comprising: a first anti-reverse diode and a second anti-reverse diode;
    所述第一防反二极管设置在所述光伏面板组与所述最大功率点跟踪电路之间;The first anti-reverse diode is disposed between the photovoltaic panel group and the maximum power point tracking circuit;
    所述第二防反二极管设置在所述最大功率点跟踪电路与所述充电电路之间。The second anti-reverse diode is disposed between the maximum power point tracking circuit and the charging circuit.
  3. 如权利要求1所述的光伏充电手机套,其中:所述光伏面板组包括至少两个光伏面板,每个光伏面板的电能输出端分别并联连接至所述最大功率点跟踪电路,所述光伏面板为高效多晶硅玻璃层压太阳能电池板。The photovoltaic charging mobile phone case of claim 1 , wherein: the photovoltaic panel group comprises at least two photovoltaic panels, and the power output ends of each photovoltaic panel are respectively connected in parallel to the maximum power point tracking circuit, the photovoltaic panel For efficient polysilicon glass laminated solar panels.
  4. 如权利要求1所述的光伏充电手机套,所述光伏充电手机套还包括:充电控制电路和电池电压检测电路;The photovoltaic charging mobile phone case of claim 1 further comprising: a charging control circuit and a battery voltage detecting circuit;
    电池电压检测电路所述充电控制电路设置为对所述最大功率点跟踪电路的输出电能进行充电控制;a battery voltage detecting circuit, wherein the charging control circuit is configured to perform charging control on an output power of the maximum power point tracking circuit;
    所述电池电压检测电路设置为对所述设备电池的电池电压及充电控制电路输出的充电电流进行检测,根据检测结果控制所述充电控制电路;The battery voltage detecting circuit is configured to detect a battery voltage of the device battery and a charging current output by the charging control circuit, and control the charging control circuit according to the detection result;
    其中,所述充电控制电路设置在所述最大功率点跟踪电路与所述充电电路之间;所述电池检测电与所述充电控制电路连接。The charging control circuit is disposed between the maximum power point tracking circuit and the charging circuit; and the battery detecting power is connected to the charging control circuit.
  5. 如权利要求4所述的光伏充电手机套,其中,所述充电控制电路包括由多个MOS管组成的开关电路及主芯片;其中,所述多个MOS管的栅极控制电压由所述主芯片提供。 The photovoltaic charging mobile phone case according to claim 4, wherein said charging control circuit comprises a switching circuit composed of a plurality of MOS transistors and a main chip; wherein a gate control voltage of said plurality of MOS transistors is controlled by said main The chip is available.
  6. 如权利要求1所述的光伏充电手机套,其中:所述最大功率点跟踪电路采用集成电路的形式设置在所述光伏充电手机套内。The photovoltaic charging mobile phone case of claim 1 wherein: said maximum power point tracking circuit is disposed in said photovoltaic charging mobile phone case in the form of an integrated circuit.
  7. 如权利要求1至6任一项所述的光伏充电手机套,其中:The photovoltaic charging mobile phone case according to any one of claims 1 to 6, wherein:
    所述最大功率点用于跟踪环境检测电路,及同步压降电路;所述最大功率点跟踪电路是设置为检测所述光伏面板组的环境温度及光照强度;The maximum power point is used for tracking an environment detecting circuit and a synchronous voltage drop circuit; the maximum power point tracking circuit is configured to detect an ambient temperature and a light intensity of the photovoltaic panel group;
    所述同步压降电路设置为在所述环境检测电路的控制下对所述光伏面板组的输出电压进行压降处理。The synchronous voltage drop circuit is configured to perform a voltage drop process on an output voltage of the photovoltaic panel group under the control of the environment detecting circuit.
  8. 如权利要求7所述的光伏充电手机套,其中:所述环境检测电路包括充电管理芯片,以及热敏电阻和/或温度检测器;The photovoltaic charging mobile phone case of claim 7 wherein: said environmental detection circuit comprises a charge management chip, and a thermistor and/or temperature detector;
    其中,所述热敏电阻设置为检测环境温度,所述温度检测器用于检测环境温度,所述充电管理芯片用于检测所述光伏面板组输出功率。The thermistor is configured to detect an ambient temperature, the temperature detector is configured to detect an ambient temperature, and the charge management chip is configured to detect the output power of the photovoltaic panel group.
  9. 如权利要求8所述的光伏充电手机套,其中,所述热敏电阻由非线性热敏电阻与匹配电阻并列后,与分压电阻串联形成。The photovoltaic charging mobile phone case according to claim 8, wherein the thermistor is formed by a non-linear thermistor and a matching resistor in parallel with the voltage dividing resistor.
  10. 如权利要求1至6任一项所述的光伏充电手机套,其中,所述最大功率点跟踪电路包括:同步压降电路及控制电路,所述同步压降电路设置为对所述光伏面板组的输出电压进行压降处理,所述控制电路设置为检测工作环境,根据所述工作环境控制所述同步压降电路。The photovoltaic charging mobile phone case according to any one of claims 1 to 6, wherein the maximum power point tracking circuit comprises: a synchronous voltage drop circuit and a control circuit, and the synchronous voltage drop circuit is set to the photovoltaic panel group The output voltage is subjected to a voltage drop process, the control circuit is configured to detect a working environment, and the synchronous voltage drop circuit is controlled according to the working environment.
  11. 如权利要求10所述的光伏充电手机套,其中,所述控制电路是设置为:通过控制芯片实时采集工作环境,根据所述工作环境控制所述同步压降电路的开通与关断,所述工作环境包括外界环境温度、设备电池电量电压、所述光伏面板组的输出电压电流。 The photovoltaic charging mobile phone case according to claim 10, wherein the control circuit is configured to: collect a working environment in real time through a control chip, and control opening and closing of the synchronous voltage drop circuit according to the working environment, The working environment includes ambient temperature, device battery voltage, and output voltage and current of the photovoltaic panel group.
PCT/CN2016/097199 2016-03-03 2016-08-29 Photovoltaic charging cellphone case WO2017148118A1 (en)

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WO2019140552A1 (en) * 2018-01-16 2019-07-25 海能达通信股份有限公司 Holder for mobile terminal

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