CN205507700U - Wireless photovoltaic power supply formula bluetooth keyboard - Google Patents

Abstract

The utility model discloses a wireless photovoltaic power supply formula bluetooth keyboard relates to operation input device field, including keyboard shell (14), several button (9), 5 LED lamp holes, photovoltaics window (1), transparent cover (2), the flexible keyboard circuit board (8) of FPC, photovoltaic power generation board (10) and keyboard dirver circuit board (11), through the self -power ability of keyboard, make its portability of breaking away from the constraint to the charging wire, improvement keyboard.

Description

Wireless PV Powered Bluetooth Keyboard

technical field

The utility model relates to the field of operation input devices, in particular to a photovoltaic-powered wireless fluorescent bluetooth keyboard.

Background technique

As an important input device, the keyboard has become an indispensable office and entertainment tool in people's life. Existing keyboards are mainly divided into wired keyboards and wireless keyboards; wherein, wired keyboards mainly rely on USB, COM or PS2 interface for direct power supply; most wireless keyboards are powered by ordinary dry batteries or rechargeable batteries, and the rechargeable batteries are connected to The power supply is used for charging; and when the battery power is low, it is necessary to replace the battery artificially, or recharge it through the USB interface. The pursuit of life.

Utility model content

The purpose of the utility model is to provide a wireless photovoltaic power supply bluetooth keyboard, through the self-power supply capability of the keyboard, it can get rid of the shackles of the charging line and improve the portability of the keyboard.

In order to achieve the above object, the utility model adopts the following technical solutions:

The wireless photovoltaic-powered Bluetooth keyboard includes a keyboard case, several buttons, 5 LED light holes and a photovoltaic window are arranged on the top of the keyboard case, a transparent cover is provided on the top of the photovoltaic window, and a There is an FPC flexible keyboard circuit board, a keyboard drive circuit board is arranged next to the FPC flexible keyboard circuit board, a photovoltaic power generation board is arranged under the FPC flexible keyboard circuit board, a keyboard switch and a USB socket are arranged on the side of the keyboard shell, The keyboard drive circuit board is provided with a first LED light, a second LED light, a third LED light, a fourth LED light and a fifth LED light, and the first LED light, the second LED light, and the third LED light , the fourth LED lamp and the fifth LED lamp are respectively inserted in the five LED lamp holes;

The keyboard drive circuit board is provided with a photovoltaic power generation board interface module, a rectification filter circuit, a voltage stabilizer, an anti-reverse charging module, a charge and discharge controller, a USB charging module, a two-color LED light module, a keyboard circuit board interface module, a single-chip microcomputer, Bluetooth module, keyboard switch module, keyboard LED light module, bluetooth LED light module, transformer and storage battery, the charge and discharge controller is provided with charge input end, battery input end, LED prompt output end and discharge output end, photovoltaic power generation board interface The input end of the module is electrically connected to the photovoltaic power generation board, the output end of the photovoltaic power generation board interface module is connected to the input end of the rectification filter circuit, the output end of the rectification filter circuit is connected to the input end of the voltage stabilizer, and the voltage stabilizer The output end of the anti-reverse charging module is connected to the input end of the anti-reverse charging module, the output end of the anti-reverse charging module is connected to the charging input end, the storage battery is electrically connected to the battery input end, and the input end of the two-color LED lamp module is connected to the LED prompt output terminal, the output terminal of the two-color LED light module is electrically connected to the first LED light, the single-chip microcomputer is provided with the first group of IO ports, the second group of IO ports, the third group of IO ports and the fourth group of IO ports, and the keyboard The input end of the circuit board interface module is connected to the output end of the FPC flexible keyboard circuit board, the output end of the keyboard circuit board interface module is connected to the first group of IO ports, and the input end of the keyboard switch module is connected to the keyboard switch circuit board. connection, the input end of the keyboard switch module is connected to the second group of IO ports, and the second LED light, the third LED light and the fourth LED light are all electrically connected to the third group of IO ports, The Bluetooth module is provided with a control interface and a Bluetooth LED light interface, the control interface is connected to the fourth group of IO ports, the input end of the Bluetooth LED light module is connected to the Bluetooth LED light interface, and the fifth LED light is connected to the bluetooth LED light interface. The output terminal of the Bluetooth LED light module is electrically connected, the discharge output terminal supplies power for the keyboard circuit board interface module and the single-chip microcomputer, and the storage battery is also connected to the input terminal of the transformer, and the output terminal of the transformer supplies power for the Bluetooth module. The discharge output end is also connected to the output end of the USB charging module, and the input end of the USB charging module is electrically connected to the USB socket 12 .

The rectification and filtering circuit includes a rectification bridge D1, a fuse F1, a fuse F2 and a rectification transformer T1, the input of the rectification bridge D1 is the input of the rectification and filtering circuit, and the output of the rectification bridge D1 is connected to the primary of the rectification transformer T1 , the secondary of the rectifier transformer T1 is the output terminal of the rectifier filter circuit, the fuse F2 is connected in series in the circuit loop between the output terminal of the rectifier bridge D1 and the primary circuit of the rectifier transformer T1, and the fuse F1 is connected in series The output terminal of the rectification filter circuit.

The charge and discharge controller is BQ24030, pin 4 of the charge and discharge controller is the charging input end, pin 5 of the charge and discharge controller is the battery input end, pin 2 of the charge and discharge controller is and pin 3 form the LED prompt output end, and pin 17 of the charge and discharge controller is the discharge output end.

The key is made of transparent plastic.

The surface of the keys and the keyboard casing is coated with a nanometer coating.

The first LED lamp is a two-color LED lamp.

The wireless photovoltaic power supply bluetooth keyboard described in the utility model is generated by a photovoltaic power generation panel, and the current is converted into a DC voltage by a rectifier circuit, and then the voltage is stabilized by a voltage stabilizer, and then enters the controller module through the anti-reverse charging device, through The charge and discharge are controlled by the microchip, which is safe and simple. This application makes full use of abundant natural resources and uses more efficient polymer photovoltaic materials to convert light energy into electrical energy to power the keyboard, which greatly reduces the use of electrical energy by the keyboard in daily life, and the efficiently converted electrical energy is stored in the battery It can be used as a keyboard for power consumption, and can also be used to charge power-consuming facilities such as mobile phones through the USB charging interface, which greatly reduces the use of power in daily life and saves energy; at the same time, the self-power supply capacity of the application reduces It reduces the keyboard's dependence on USB, improves the portability of the keyboard, and facilitates people's daily use; in addition, the nano-materials used on the upper surface of the keyboard are preferably waterproof and anti-corrosion, as well as the growth of bacteria, which greatly facilitates people's use .

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a block diagram of a hardware schematic diagram of the present utility model;

Fig. 4 is a circuit diagram of the rectification filter circuit of the present invention.

detailed description

The wireless photovoltaic-powered Bluetooth keyboard shown in Figure 1-2 includes a keyboard casing 14, and several buttons 9, 5 LED light holes and a photovoltaic window 1 are arranged on the keyboard casing 14, and the photovoltaic window 1 A transparent cover plate 2 is arranged on it to ensure the illuminance of the photovoltaic power generation panel 10. The keyboard housing 14 is provided with an FPC flexible keyboard circuit board 8. The FPC flexible keyboard circuit board 8 is a transparent circuit board, which improves the brightness of the photovoltaic power generation panel 10 illuminance, the FPC flexible keyboard circuit board 8 is provided with a keyboard driver circuit board 11, the bottom of the FPC flexible keyboard circuit board 8 is provided with a photovoltaic power generation board 10, and the side of the keyboard shell 14 is provided with a keyboard switch 13 and a USB socket 12, the keyboard drive circuit board 11 is provided with a first LED light 3, a second LED light 4, a third LED light 5, a fourth LED light 6 and a fifth LED light 7, the first LED light 3 , the second LED lamp 4, the third LED lamp 5, the fourth LED lamp 6 and the fifth LED lamp 7 are respectively inserted in the five LED lamp holes;

As shown in Figure 3, the keyboard drive circuit board 11 is provided with a photovoltaic power generation board interface module, a rectification filter circuit, a voltage stabilizer, an anti-reverse charging module, a charge and discharge controller, a USB charging module, a two-color LED light module, and a keyboard circuit. board interface module, single-chip microcomputer, bluetooth module, keyboard switch module, keyboard LED light module, bluetooth LED light module, transformer and storage battery, the charge and discharge controller is provided with charge input end, battery input end, LED prompt output end and discharge output The input end of the photovoltaic generation panel interface module is electrically connected to the photovoltaic generation panel 10, the output end of the photovoltaic generation panel interface module is connected to the input end of the rectification and filtering circuit, and the output end of the rectification and filtering circuit is connected to the voltage stabilizer. The input end is connected, the output end of the voltage regulator is connected to the input end of the anti-reverse charging module, the output end of the anti-reverse charging module is connected to the charging input end, the storage battery is electrically connected to the battery input end, and the two-color LED light The input terminal of the module is connected to the LED prompt output terminal, and the output terminal of the two-color LED light module is electrically connected to the first LED light 3, and the first LED light 3 is a two-color LED light for indicating charging, discharging and fault status. The green light is for charging, the red light is for discharging power, and the light is off when there is a fault;

The single-chip microcomputer is provided with the first group of IO ports, the second group of IO ports, the third group of IO ports and the fourth group of IO ports, the input end of the keyboard circuit board interface module is connected with the output end of the FPC flexible keyboard circuit board 8, and the keyboard The output end of the circuit board interface module is connected to the first group of IO ports, the input end of the keyboard switch module is electrically connected to the keyboard switch 13, and the input end of the keyboard switch module is connected to the second group of IO ports. The second LED lamp 4, the third LED lamp 5 and the fourth LED lamp 6 are all electrically connected to the third group of IO ports, and the Bluetooth module is provided with a control interface and a Bluetooth LED lamp interface, and the control interface is connected to the Bluetooth LED lamp interface. The fourth group of IO ports is connected, the input end of the Bluetooth LED light module is connected to the Bluetooth LED light interface, and the fifth LED light 7 is electrically connected to the output end of the Bluetooth LED light module. When the keyboard is in normal use , turn on the keyboard switch, the indicator light will be green, and it will be off for normal operation;

The discharge output end supplies power to the keyboard circuit board interface module and the single-chip microcomputer, the storage battery is also connected to the input end of the transformer, the output end of the transformer supplies power to the bluetooth module, and the discharge output end is also connected to the USB charging module. The output end is connected, and the input end of the USB charging module is electrically connected with the USB socket 12, and the mobile phone and other electrical facilities can be charged through the USB charging interface, which greatly reduces the use of electric energy in life and saves energy.

As shown in Figure 4, the rectifier filter circuit includes a rectifier bridge D1, a fuse F1, a fuse F2 and a rectifier transformer T1, the input end of the rectifier bridge D1 is the input end of the rectifier filter circuit, and the output end of the rectifier bridge D1 is connected to The primary of the rectifier transformer T1, the secondary of the rectifier transformer T1 is the output end of the rectification filter circuit, and the fuse F2 is connected in series in the circuit loop between the output end of the rectifier bridge D1 and the primary circuit of the rectifier transformer T1, and is fused The device F1 is connected in series with the output end of the rectification and filtering circuit.

The charge and discharge controller is BQ24030, pin 4 of the charge and discharge controller is the charging input end, pin 5 of the charge and discharge controller is the battery input end, pin 2 of the charge and discharge controller is and pin 3 form the LED prompt output end, and pin 17 of the charge and discharge controller is the discharge output end.

The key 9 is made of transparent plastic, which improves the illuminance on the photovoltaic power generation panel 10 .

The surface of the key 9 and the keyboard shell 14 is coated with a nano-coating, which is a high molecular polymer coating such as recyclable nano-polyethylene, nano-nylon 6, and nano-PET polyester.

The anti-reverse charging module preferably adopts silicon crystal diodes.

In the utility model, the voltage converted by the photovoltaic power generation panel 10 is integrated into a DC voltage through a rectification and filtering circuit, and then converted into a stable DC voltage through a voltage stabilizer. The built-in control circuit manages the charging and discharging process of the battery. When using the keyboard, the keyboard circuit is supplied with electric energy by the discharge output terminal of the charge and discharge controller. The electrical signal generated by the keyboard is collected and processed by the single-chip microcomputer, and then transmitted to the Bluetooth module, and then transmitted to the computer, and the battery is converted into a rated voltage by a transformer to provide voltage for the Bluetooth module.

Claims (6)

1. The wireless photovoltaic-powered Bluetooth keyboard is characterized in that it includes a keyboard casing (14), and several buttons (9), 5 LED light holes and a photovoltaic window (1) are arranged on the top of the keyboard casing (14). The photovoltaic window (1) is provided with a transparent cover (2), the keyboard housing (14) is provided with an FPC flexible keyboard circuit board (8), and a keyboard is provided next to the FPC flexible keyboard circuit board (8). A drive circuit board (11), a photovoltaic power generation panel (10) is provided under the FPC flexible keyboard circuit board (8), and a keyboard switch (13) and a USB socket (12) are provided on the side of the keyboard casing (14) , the keyboard drive circuit board (11) is provided with a first LED lamp (3), a second LED lamp (4), a third LED lamp (5), a fourth LED lamp (6) and a fifth LED lamp ( 7), the first LED lamp (3), the second LED lamp (4), the third LED lamp (5), the fourth LED lamp (6) and the fifth LED lamp (7) are respectively inserted in the Inside 5 LED light holes; The keyboard drive circuit board (11) is provided with a photovoltaic power generation board interface module, a rectification filter circuit, a voltage stabilizer, an anti-reverse charging module, a charge and discharge controller, a USB charging module, a two-color LED light module, and a keyboard circuit board interface module , single-chip microcomputer, bluetooth module, keyboard switch module, keyboard LED light module, bluetooth LED light module, transformer and battery, the charge and discharge controller is provided with charge input end, battery input end, LED prompt output end and discharge output end, photovoltaic The input end of the power generation board interface module is electrically connected to the photovoltaic power generation board (10), the output end of the photovoltaic power generation board interface module is connected to the input end of the rectification and filtering circuit, and the output end of the rectification and filtering circuit is connected to the input of the voltage stabilizer The output terminal of the voltage regulator is connected to the input terminal of the anti-reverse charging module, the output terminal of the anti-reverse charging module is connected to the charging input terminal, the storage battery is electrically connected to the battery input terminal, and the two-color LED lamp module The input terminal is connected to the LED prompt output terminal, the output terminal of the two-color LED lamp module is electrically connected to the first LED lamp (3), and the single-chip microcomputer is provided with a first group of IO ports, a second group of IO ports, and a third group of IO ports. port and the fourth group of IO ports, the input end of the keyboard circuit board interface module is connected with the output end of the FPC flexible keyboard circuit board (8), and the output end of the keyboard circuit board interface module is connected with the first group of IO ports, The input end of the keyboard switch module is electrically connected with the keyboard switch (13), the input end of the keyboard switch module is connected with the second group of IO ports, the second LED light (4), the third LED light ( 5) and the fourth LED light (6) are electrically connected to the third group of IO ports, the Bluetooth module is provided with a control interface and a Bluetooth LED light interface, and the control interface is connected to the fourth group of IO ports, The input end of the Bluetooth LED light module is connected to the Bluetooth LED light interface, the fifth LED light (7) is electrically connected to the output end of the Bluetooth LED light module, and the discharge output end is the keyboard circuit board interface The module and the single-chip microcomputer supply power, the storage battery is also connected to the input terminal of the transformer, the output terminal of the transformer supplies power to the Bluetooth module, the discharge output terminal is also connected to the output terminal of the USB charging module, and the input terminal of the USB charging module is connected to the Bluetooth module. The USB socket (12) is electrically connected. 2. The wireless photovoltaic-powered Bluetooth keyboard as claimed in claim 1, wherein the rectification and filtering circuit includes a rectification bridge D1, a fuse F1, a fuse F2 and a rectification transformer T1, and the input end of the rectification bridge D1 is the The input end of the rectifier filter circuit, the output end of the rectifier bridge D1 is connected to the primary of the rectifier transformer T1, the secondary of the rectifier transformer T1 is the output end of the rectifier filter circuit, and the fuse F2 is connected in series with the output of the rectifier bridge D1 In the circuit loop between terminal and the primary side of the rectifying transformer T1, the fuse F1 is connected in series with the output terminal of the rectifying and filtering circuit. 3. The wireless photovoltaic-powered Bluetooth keyboard as claimed in claim 1, characterized in that: the charging and discharging controller is BQ24030, the pin 4 of the charging and discharging controller is the charging input terminal, and the charging and discharging controller Pin 5 of the controller is the battery input terminal, pin 2 and pin 3 of the charge and discharge controller form the LED prompt output terminal, and pin 17 of the charge and discharge controller is the discharge output terminal. 4. The wireless photovoltaic-powered Bluetooth keyboard according to claim 1, characterized in that: the key (9) is made of transparent plastic. 5. The wireless photovoltaic-powered Bluetooth keyboard according to claim 1, characterized in that: the surface of the key (9) and the keyboard shell (14) is coated with a nano-coating. 6. The wireless photovoltaic-powered Bluetooth keyboard according to claim 1, characterized in that: the first LED light (3) is a two-color LED light.