阅读说明：本技术 会根据电池电量自动开启和关闭的电池充电器 (Battery charger capable of automatically turning on and off according to electric quantity of battery ) 是由 张鹏辉 于 2020-04-15 设计创作，主要内容包括：本发明提供了分开了一种会根据电池电量自动开启和关闭的电池充电器,所述充电器会根据电池的电量自动开启和关闭充电器所连接的电源,达到充电器连接电池,充电器开启充电器电源,充电器为电池充电,当电池电量充满后,充电器关闭充电器电源。在电池充电器内除原有的充电模块外还需加装电源开关、控制和分析模块、电压检测模块,在充电器的充电模块与电源之间加装一个电源开关,电源开关受控制和分析模块控制,电压检测模块连通充电器的充电口,即与电池相连且可检测电池电压。所述充电器的电压检测模块、控制和分析模块、电源开关最开始时利用电池内电力进行工作。(The invention provides a battery charger capable of being automatically turned on and turned off according to the electric quantity of a battery, wherein the charger can be used for automatically turning on and turning off a power supply connected with the charger according to the electric quantity of the battery, so that the charger is connected with the battery, the charger is used for turning on the power supply of the charger, the charger is used for charging the battery, and the charger is used for turning off the power supply of the charger after the electric quantity of the battery is fully charged. The battery charger is characterized in that a power switch, a control and analysis module and a voltage detection module are additionally arranged in the battery charger besides an original charging module, the power switch is additionally arranged between the charging module and a power supply of the charger and is controlled by the control and analysis module, and the voltage detection module is communicated with a charging port of the charger, namely is connected with a battery and can detect the voltage of the battery. The voltage detection module, the control and analysis module and the power switch of the charger work by utilizing the electric power in the battery at the beginning.)

1. A battery charger that will turn on and off automatically according to the battery power, characterized by; the battery charger is characterized in that a power switch, a control and analysis module and a voltage detection module are additionally arranged in the battery charger besides an original charging module, the power switch is additionally arranged between the charging module of the charger and a power supply and is controlled by the control and analysis module, the voltage detection module is communicated with a charging port of the charger, namely, the voltage detection module is connected with a battery and can detect the voltage and the current of the battery during charging, the voltage detection module detects the voltage and the current of the battery during charging and transmits a detection result to the control and analysis module, the control and analysis module analyzes whether the battery needs to be charged according to the voltage of the battery, if the voltage of the battery does not reach a preset charging voltage, the control and analysis module controls the power switch to be turned on, the charging module of the charger starts to work, and the battery starts to be charged; when the battery is fully charged, the voltage value measured by the voltage detection module can reach the voltage value when the battery is fully charged, the charging current smaller than the preset charging current can be detected, the control and analysis module analyzes that the battery is fully charged, the control power switch is turned off, the power supply of the charging module of the charger is disconnected, and the charging module stops working.

2. The battery charger of claim 1 that automatically turns on and off based on battery charge; when the battery is fully charged and is connected with the charger, the voltage detection module detects voltage and transmits a detection result to the control and analysis module, the control and analysis module analyzes whether the battery needs to be charged or not according to the voltage of the battery, and the control and analysis module judges that the battery does not need to be charged and does not start a power switch because the battery is fully charged and the voltage of the battery reaches the voltage when the battery is fully charged.

3. The battery charger of claim 1 that automatically turns on and off based on battery charge; the charger comprises a voltage detection module, a control and analysis module and a power switch, wherein the voltage detection module, the control and analysis module and the power switch of the charger work by using the electric power in the battery at the beginning, when the battery is judged to need to be charged, the control power switch is turned on, and after the charging module of the charger starts to work, the voltage detection module, the control and analysis module and the power switch adopt the electric power converted after the charging module works.

4. The battery charger of claim 1 that automatically turns on and off based on battery charge; the control and analysis module of the charger analyzes the voltage value of the battery and judges whether a power switch needs to be turned on to charge the battery; the determination value for determining whether the voltage value of the battery needs to be charged is different according to different batteries, and the determination value is flexibly changed according to the batteries with different voltages.

Technical Field

The present invention relates to a battery charger, and more particularly, to a battery charger that can be automatically turned on and off according to the amount of power of a battery.

Background

With the continuous improvement of battery technology and the continuous increase of battery capacity, the charging time of the battery becomes longer and longer, the application of the battery charger is more frequent, but the problem of inconvenient use of the battery charger is also exposed; the battery charger is manually connected with a power supply every time, and is manually cut off after use, if the power supply of the charger is not cut off when the battery charger is not used, certain damage can be caused to electrical elements of the charger, and certain potential safety hazards can be caused. When the battery is fully charged by the charger, the charger does not need to work and does not need to be connected with a power supply, but the existing charger can also charge the battery at a low current when the battery is fully charged, so that the battery and the charger are unsafe and the service life of the battery and the charger can be reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the battery charger which can be automatically turned on and off according to the electric quantity of the battery.

The technical scheme adopted by the invention is as follows: the battery charger is characterized in that a power switch, a control and analysis module and a voltage detection module are additionally arranged in the battery charger besides an original charging module, the power switch is additionally arranged between the charging module and a power supply of the charger and is controlled by the control and analysis module, and the voltage detection module is communicated with a charging port of the charger, namely is connected with a battery and can detect the voltage of the battery.

When the battery is connected with the charger, the voltage detection module detects the voltage of the battery and transmits the detection result to the control and analysis module, the control and analysis module analyzes whether the battery needs to be charged according to the voltage of the battery, if the voltage of the battery does not reach the voltage when the battery is fully charged, the control and analysis module controls the power switch to be switched on, the charging module of the charger starts to work, and the battery starts to be charged; when the battery is fully charged, the voltage value measured by the voltage detection module can reach the voltage value when the battery is fully charged, the control and analysis module analyzes that the battery is fully charged, the control power switch is turned off, the charger charging module is powered off, and the charging module stops working.

When the battery is fully charged and is connected with the charger, the voltage detection module detects voltage and transmits a detection result to the control and analysis module, the control and analysis module analyzes whether the battery needs to be charged or not according to the voltage of the battery, and the control and analysis module judges that the battery does not need to be charged and does not start a power switch because the battery is fully charged and the voltage of the battery reaches the voltage when the battery is fully charged.

The charger comprises a voltage detection module, a control and analysis module and a power switch, wherein the voltage detection module, the control and analysis module and the power switch of the charger work by using the electric power in the battery at the beginning, when the battery is judged to need to be charged, the control power switch is turned on, and after the charging module of the charger starts to work, the voltage detection module, the control and analysis module and the power switch adopt the electric power converted after the charging module works.

The control and analysis module of the charger analyzes the voltage value of the battery and judges whether a power switch needs to be turned on to charge the battery; the judgment value for judging whether the voltage value of the battery needs to be charged is different according to different batteries, and the judgment value is flexibly changed according to the batteries with different voltages; the voltage value for opening the power switch is less than the voltage value for closing the power switch;

examples are given; when the battery charger is used for charging the mobile phone, when the voltage of the mobile phone battery reaches 4.2 volts, the battery power is full, the mobile phone is communicated with the charger, the charger detects the battery voltage and analyzes the battery voltage, the voltage reaches 4.2 volts and is greater than the charging voltage required by judgment, namely 4.06 volts (about 90 percent of the power), at the moment, the power switch of the charger is not opened, and the charging module of the charger does not work;

when the voltage of a mobile phone battery is 3.79V (about 40% of electric quantity), the mobile phone is communicated with the charger, the charger detects and analyzes the battery voltage, the battery voltage is 3.79V, is less than the charging voltage needed for judging 4.06V (about 90% of electric quantity), and is less than the charging voltage needed for judging 4.06V (about 90% of electric quantity), the control and division module of the charger controls the power switch to be switched on, and the charging module of the charger starts to work to charge the mobile phone; when the voltage of the mobile phone battery reaches 4.2V, the control and splitting module of the charger controls the power switch to be closed, and the power supply of the charger is closed; the control and division module of the charger can also analyze the charging current of the charging module of the charger, and when the current is smaller than a preset value, the control and division module controls the power switch to be closed to disconnect the power supply of the charger.

The charger can also be used for charging electric automobiles, electric mopeds, mobile phones, tablet computers, notebook computers, chargers and sweeping robots, and electric appliances with batteries.

Compared with the prior art, the invention has the beneficial effects that: the charger can be communicated with a household power supply within 24 hours, no current flows in the charger when the charger is not charged, and the convenience service life of the charger is not influenced without worrying about potential safety hazards; after the charger is connected with the battery, the charger can also analyze the voltage and the electric quantity of the battery (the voltage of the battery is in direct proportion to the electric quantity), the battery is charged according to the voltage of the battery, and after the battery is fully charged, the connection between a charging module of the charger and a household power supply is automatically disconnected, so that the overcharge of the battery by the charger is not worried.

The battery charger is characterized in that the charger can detect the voltage of the battery and judge whether the battery needs to be charged according to the voltage of the battery, when the battery does not need to be charged, a power switch of the charger is not started, and the charger is not communicated with an external power supply; when the battery needs to be charged, the charger turns on a power switch of the charger, the charger is communicated with an external power supply, the charger starts charging work on the battery, and when the voltage of the battery reaches a preset value, the charger turns off the power switch of the charger; when the power switch is not turned on, the charger uses the power in the battery.