CN103779880A - Solar charger with electric quantity display and temperature protection - Google Patents

Abstract

The invention discloses a solar charger with electric quantity display and temperature protection. The solar charger comprises a solar panel which receives solar energy and converts the solar energy into electrical energy, a first booster circuit which increases the voltage of the electrical energy which is obtained through the conversion of the solar panel to first voltage, a spare battery which carries out charging storage on the electrical energy after the boost of the first booster circuit, a temperature detection circuit which detects whether the temperature of the spare battery exceeds a first preset value in charging, an electric quantity display circuit which displays the battery electric quantity of the spare battery in real time, a second booster circuit which increases the voltage outputted by the spare battery to second voltage, and a charging interface which charges an outside unit. Since the temperature detection circuit is added, a user can be reminded to stop the charging when the temperature is high, and a problem that the life of the battery is reduced due to high temperature when the spare battery is a lithium ion battery is solved. The electric quantity display circuit is added, thus the user visually knows whether the spare battery has power or not and whether the charging of the spare battery is needed or not.

Description

Translated fromChinese

具有电量显示和温度保护的太阳能充电器Solar charger with power display and temperature protection

【技术领域】【Technical field】

本发明涉及一种太阳能充电器，特别是涉及一种具有电量显示和温度保护的太阳能充电器。The invention relates to a solar charger, in particular to a solar charger with power display and temperature protection.

【背景技术】【Background technique】

太阳能既是一次能源，又是可再生能源。它资源丰富，既可免费使用，又无需运输，对环境无任何污染。为人类创造了一种新的生活形态，使社会及人类进入一个节约能源减少污染的时代。因此，太阳能作为一种清洁且方便获得的能源，越来越为人们所青睐。Solar energy is both primary energy and renewable energy. It is rich in resources, can be used for free, does not need to be transported, and has no pollution to the environment. It has created a new life form for human beings, and brought society and human beings into an era of saving energy and reducing pollution. Therefore, solar energy is more and more favored by people as a clean and easily accessible energy source.

对于便携式电子产品来说，通常会使用电池供电。而对电池进行充电，人们便考虑采用太阳能充电器。目前的太阳能充电器无电量显示，用户不知道备用电池大概有多少电量。同时，目前的太阳能充电器无温度保护，用太阳能板给备用电池充电时不知道备用电池内部温度，亦无法在温度过高时进行保护。For portable electronic products, batteries are usually used for power supply. And to charge the battery, people just consider adopting the solar charger. The current solar charger has no power display, and the user does not know how much power the backup battery has. At the same time, the current solar charger has no temperature protection. When charging the backup battery with a solar panel, the internal temperature of the backup battery is unknown, and it cannot be protected when the temperature is too high.

有鉴于此，实有必要开发一种模具滑块的弹簧结构，以解决上述问题。In view of this, it is necessary to develop a spring structure for the mold slider to solve the above problems.

【发明内容】【Content of invention】

因此，本发明的目的是提供一种具有电量显示和温度保护的太阳能充电器，解决无法知道备用电池的电量及充电时温度是否过高的问题。Therefore, the object of the present invention is to provide a solar charger with power display and temperature protection, which solves the problem of not being able to know the power of the backup battery and whether the temperature is too high during charging.

为了达到上述目的，本发明提供的具有电量显示和温度保护的太阳能充电器，包括：In order to achieve the above purpose, the solar charger with power display and temperature protection provided by the present invention includes:

太阳能板，接收太阳能以转换为电能；Solar panels, which receive solar energy for conversion into electricity;

第一升压电路，与所述太阳能板电性连接，将所述太阳能板所转换得到的电能升压至第一电压；a first boost circuit, electrically connected to the solar panel, and boosting the electric energy converted by the solar panel to a first voltage;

备用电池，与所述第一升压电路电性连接，并将所述第一升压电路升压后的电能进行充电储备；A backup battery electrically connected to the first boosting circuit, and charging and storing the boosted electric energy of the first boosting circuit;

温度检测电路，与所述备用电池电性连接，检测所述备用电池在充电时温度是否超过一预设值；A temperature detection circuit electrically connected to the backup battery to detect whether the temperature of the backup battery exceeds a preset value during charging;

电量显示电路，与所述备用电池电性连接，实时显示所述备用电池的电池电量；The power display circuit is electrically connected to the backup battery, and displays the battery power of the backup battery in real time;

第二升压电路，与所述备用电池电性连接，将所述备用电池输出的电压升压至第二电压；a second boost circuit, electrically connected to the backup battery, and boosting the output voltage of the backup battery to a second voltage;

充电接口，其一端与所述第二升压电路电性连接，另一端对外界进行充电。A charging interface, one end of which is electrically connected to the second boost circuit, and the other end charges the outside world.

可选的，所述太阳能充电器还具有降压电路，所述降压电路输入端与一外接充电器电性连接、输出端与所述备用电池电性连接，将所述外接充电器所提供的电压进行降压以对所述备用电池进行充电。Optionally, the solar charger also has a step-down circuit, the input end of the step-down circuit is electrically connected to an external charger, the output end is electrically connected to the backup battery, and the The voltage is stepped down to charge the backup battery.

可选的，所述备用电池与一外接充电器电性连接，所述外接充电器对所述备用电池进行充电。Optionally, the backup battery is electrically connected to an external charger, and the external charger charges the backup battery.

可选的，所述第一升压电路为TPS61220集成电路。Optionally, the first boost circuit is a TPS61220 integrated circuit.

可选的，所述第二升压电路为BQ24090集成电路。Optionally, the second boost circuit is a BQ24090 integrated circuit.

可选的，所述第一电压为4.2V。Optionally, the first voltage is 4.2V.

可选的，所述第二电压为5V。Optionally, the second voltage is 5V.

可选的，所述温度检测电路包括显示单元，所述显示单元例如为红色的LED灯，所述备用电池在充电时温度超过一预设值，则所述红色的LED灯发光。Optionally, the temperature detection circuit includes a display unit, such as a red LED light, and the red LED light will emit light when the temperature of the spare battery exceeds a preset value during charging.

可选的，所述电量显示电路具有一开关，打开所述开关后，才进行所述电量显示。Optionally, the power display circuit has a switch, and the power display is performed only after the switch is turned on.

可选的，所述电量显示电路具有若干电量显示单元，例如为四个发光二极管，发光二极管发光个数与所述备用电池的电量正相关。Optionally, the power display circuit has several power display units, such as four light-emitting diodes, and the number of light-emitting diodes is positively correlated with the power of the backup battery.

可选的，所述充电接口为USB接口。Optionally, the charging interface is a USB interface.

相较于现有技术，利用本发明的具有电量显示和温度保护的太阳能充电器，一方面由于增加温度检测电路，可以提醒用户温度高时应停止充电，如此对于备用电池是锂离子电池时，温度经常偏高会使电池寿命减少的问题；另一方面增加电量显示电路，使用户比较直观的知道备用电池有没有电，需不需要充电。Compared with the prior art, using the solar charger with power display and temperature protection of the present invention, on the one hand, due to the increase of the temperature detection circuit, the user can be reminded to stop charging when the temperature is high, so when the backup battery is a lithium ion battery, Frequently high temperature will reduce the life of the battery; on the other hand, adding a power display circuit allows the user to intuitively know whether the backup battery has power and whether it needs to be charged.

【附图说明】【Description of drawings】

图1绘示为本发明具有电量显示和温度保护的太阳能充电器的模块结构图。FIG. 1 is a block diagram of a solar charger with power display and temperature protection according to the present invention.

【具体实施方式】【Detailed ways】

请参阅图1，图1绘示为本发明具有电量显示和温度保护的太阳能充电器的模块结构图。Please refer to FIG. 1 . FIG. 1 is a block diagram of a solar charger with power display and temperature protection according to the present invention.

本发明揭示的具有电量显示和温度保护的太阳能充电器100，于本实施例，包括：Thesolar charger 100 with power display and temperature protection disclosed by the present invention, in this embodiment, includes:

太阳能板10，接收太阳能以转换为电能，所述太阳能板10转换得到的电能电压例如为0.7～1.0V；Thesolar panel 10 receives solar energy and converts it into electrical energy, and the voltage of the electrical energy converted by thesolar panel 10 is, for example, 0.7-1.0V;

第一升压电路20，与所述太阳能板10电性连接，将所述太阳能板10所转换得到的电能升压至第一电压，所述第一电压例如为4.2V，所述第一升压电路20例如为TPS61220集成电路；Thefirst boost circuit 20 is electrically connected with thesolar panel 10, and boosts the electric energy converted by thesolar panel 10 to a first voltage, the first voltage is, for example, 4.2V, and the first boost Thepiezoelectric circuit 20 is, for example, a TPS61220 integrated circuit;

备用电池30，与所述第一升压电路20电性连接，并将所述第一升压电路20升压后的电能进行充电储备；Thebackup battery 30 is electrically connected to thefirst booster circuit 20, and stores the boosted electric energy of thefirst booster circuit 20;

温度检测电路40，与所述备用电池30电性连接，检测所述备用电池30在充电时温度是否超过一预设值；Atemperature detection circuit 40, electrically connected to thebackup battery 30, detects whether the temperature of thebackup battery 30 exceeds a preset value during charging;

电量显示电路50，与所述备用电池30电性连接，实时显示所述备用电池30的电池电量；Thepower display circuit 50 is electrically connected to thebackup battery 30 and displays the battery power of thebackup battery 30 in real time;

第二升压电路60，与所述备用电池30电性连接，将所述备用电池30输出的电压升压至第二电压，所述第二电压例如为5V，所述第二升压电路60例如为BQ24090集成电路；Thesecond boost circuit 60 is electrically connected to thebackup battery 30, and boosts the output voltage of thebackup battery 30 to a second voltage, the second voltage is, for example, 5V, and thesecond boost circuit 60 For example, BQ24090 integrated circuit;

充电接口70，其一端与所述第二升压电路60电性连接，另一端对外界进行充电。One end of thecharging interface 70 is electrically connected to the secondvoltage boosting circuit 60 , and the other end charges the outside world.

于本实施例，所述太阳能充电器100还具有降压电路80，所述降压电路80输入端与一外接充电器90电性连接、输出端与所述备用电池30电性连接，将所述外接充电器90所提供的电压进行降压以对所述备用电池30进行充电。此处，所外接充电器的输入电压例如为100～240V的交流点，所述外接充电器90的输出电压例如为5V的直流电。In this embodiment, thesolar charger 100 also has a step-down circuit 80, the input end of the step-down circuit 80 is electrically connected to anexternal charger 90, the output end is electrically connected to thebackup battery 30, and the The voltage provided by theexternal charger 90 is stepped down to charge thebackup battery 30 . Here, the input voltage of the external charger is, for example, an AC point of 100-240V, and the output voltage of theexternal charger 90 is, for example, a DC of 5V.

当然，所述备用电池30也可以直接与一外接充电器90电性连接，所述外接充电器90对所述备用电池30进行充电，此时的外接充电器90的输出电压例如为4.2V的直流电。Of course, thebackup battery 30 can also be directly electrically connected to anexternal charger 90, and theexternal charger 90 charges thebackup battery 30. At this time, the output voltage of theexternal charger 90 is, for example, 4.2V. direct current.

其中，所述温度检测电路40包括显示单元，所述显示单元例如为红色的LED灯，所述备用电池在充电时温度超过一预设值，则所述红色的LED灯发光。Wherein, thetemperature detection circuit 40 includes a display unit, such as a red LED light, and the red LED light will emit light when the temperature of the spare battery exceeds a preset value during charging.

其中，所述电量显示电路50可以具有一开关，打开所述开关后，才进行所述电量显示，如此可以在无需知道电量的时候，不进行显示，从而节省电量。Wherein, thepower display circuit 50 may have a switch, and the power display is performed only after the switch is turned on, so that the power display is not performed when there is no need to know the power, thereby saving power.

其中，所述电量显示电路50具有若干电量显示单元，例如为四个发光二极管，发光二极管发光个数与所述备用电池30的电量正相关，当电量为100%时四个LED灯亮，当电量为75%时三个LED灯亮，当电量为50%时两个LED灯亮，当电量为25%时一个LED灯亮。Wherein, thepower display circuit 50 has a number of power display units, such as four light-emitting diodes, and the number of light-emitting diodes is positively correlated with the power of thebackup battery 30. When the power is 100%, the four LED lights are on. When the power is 75%, three LED lights are on, when the power is 50%, two LED lights are on, and when the power is 25%, one LED light is on.

其中，所述充电接口70可以为USB接口，从而可以适用较多现有便携式电子设备。Wherein, thecharging interface 70 can be a USB interface, so that it can be applied to many existing portable electronic devices.

相较于现有技术，利用本发明的具有电量显示和温度保护的太阳能充电器100，一方面由于增加温度检测电路40，可以提醒用户温度高时应停止充电，如此对于备用电池是锂离子电池时，温度经常偏高会使电池寿命减少的问题；另一方面增加电量显示电路50，使用户比较直观的知道备用电池有没有电，需不需要充电。Compared with the prior art, using thesolar charger 100 with power display and temperature protection of the present invention, on the one hand, due to the increase of thetemperature detection circuit 40, the user can be reminded to stop charging when the temperature is high, so the backup battery is a lithium ion battery When the temperature is often on the high side, the battery life will be reduced; on the other hand, thepower display circuit 50 is increased, so that the user can intuitively know whether the backup battery has power or not, and whether it needs to be charged.

Claims (10)

1. a solar charger with electric weight demonstration and temperature protection, is characterized in that, it comprises:

Solar panels, receive solar energy to be converted to electric energy;

The first booster circuit, is electrically connected with described solar panels, and the electric energy that described solar panels are converted to boosts to the first voltage;

Reserve battery, is electrically connected with described the first booster circuit, and electric energy after described the first booster circuit the is boosted deposit that charges;

Temperature sensing circuit, is electrically connected with described reserve battery, detects described reserve battery temperature in the time of charging and whether exceedes a preset value;

Electric quantity display circuit, is electrically connected with described reserve battery, shows in real time the battery electric quantity of described reserve battery;

The second booster circuit, is electrically connected with described reserve battery, and the boost in voltage that described reserve battery is exported is to second voltage;

Charging inlet, its one end and described the second booster circuit are electrically connected, and the other end charges to external world.

2. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1; it is characterized in that; described solar charger also has reduction voltage circuit; described reduction voltage circuit input and an external charger electric connection, output and described reserve battery are electrically connected, and the voltage that described external charger is provided carries out step-down so that described reserve battery is charged.

3. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described reserve battery and an external charger are electrically connected, and described external charger charges to described reserve battery.

4. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described the first booster circuit is TPS61220 integrated circuit.

5. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described the second booster circuit is BQ24090 integrated circuit.

6. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described the first voltage is 4.2V, and described second voltage is 5V.

7. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described charging inlet is USB interface.

8. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described temperature sensing circuit comprises display unit, and described reserve battery temperature in the time of charging exceedes a preset value, and described display unit shows.

9. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1, is characterized in that, described electric quantity display circuit has a switch, controls the break-make that described electric weight shows.

10. the solar charger with electric weight demonstration and temperature protection as claimed in claim 1; it is characterized in that; described electric quantity display circuit has some electric weight display units, for example, be four light-emitting diodes, the electric weight positive correlation of lumination of light emitting diode number and described reserve battery.

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