CN100533351C - A keyboard with a generator - Google Patents

Abstract

The invention discloses a keyboard with a power generation device, which comprises a keyboard body and a button arranged on the keyboard body, wherein the button is provided with an electromagnetic power generation device which can generate electric energy along with the up-and-down movement of the button. Two ends of the electromagnetic induction coil are connected with the rechargeable battery and the power supply circuit through the charging circuit. The invention is provided with the power generation device, can convert the motion of the finger keystroke into electric power to supply power to the keyboard and circuits connected with the keyboard, the calculator, the instrument and the like, and has the advantages of novelty, uniqueness, energy conservation, environmental protection and the like.

Description

A keyboard with a generator

technical field

The invention relates to a keyboard used in computers, calculators and other data entry devices, in particular to a keyboard with a power generating device.

Background technique

Computers, calculators, instruments and meters with data input keyboards in the prior art, especially portable devices with data input keyboards, all rely on batteries or external power supplies for power supply, and have the following defects: 1, waste of energy, high use cost, and unnecessary Environmental protection, and in the case of no external power supply or poor battery power supply, these devices cannot be used; 2. When using the keyboard to input data, it is necessary to frequently tap the keyboard with fingers and rely on manpower to generate a kind of kinetic energy. Utilized but wasted.

Contents of the invention

The task of the present invention is to provide a power generation device with a power generation device that can use the kinetic energy generated when people's fingers tap the keyboard to input data, so as to supply power to the corresponding keyboard and the circuits connected to it, such as computers, calculators, instruments and meters. keyboard.

Task of the present invention is realized by technical solution:

A keyboard with a power generating device, including a keyboard body and a button mounted on it, and a button switch under the button, which is characterized in that there is a device under the button that can generate electricity when the button moves up and down. The electromagnetic generating device; the electromagnetic generating device includes a magnet that is connected with the button and can move up and down accordingly, and a static electromagnetic induction coil is arranged opposite to the magnet, and the two ends of the electromagnetic induction coil are connected to the rechargeable battery and the external connection through the charging circuit. The circuit is connected; the magnet is a magnetic tank with a closed top and four sides. The electromagnetic induction coil is placed in the magnetic tank, and a cylinder is arranged in the middle of the magnetic tank. The coil enters and exits with the movement of the key.

The charging circuit is a diode rectifier circuit.

It can be seen from the above scheme that the present invention obviously provides a novel, unique, energy-saving, green and environmentally friendly keyboard with its own power generation device. The electronic device equipped with the keyboard can automatically convert the power of finger strokes without external power supply. Provides power to the keyboard and its system circuits.

Description of drawings

Fig. 1 is a kind of specific structural representation of the present invention;

Fig. 2 is a schematic diagram of another specific structure of the present invention.

Detailed ways

Example 1:

As shown in FIG. 1 , the keyboard with the power generating device includes a keyboard body (not shown, the appearance is similar to a standard keyboard of a notebook computer), and dozens of buttons 1 are arranged on the keyboard body. On the key 1, there is an electromagnetic generator 2 that can generate electric energy as it moves up and down.

Electromagnetic generating device 2 has multiple realization methods, such as, it comprises a magnet 21 that links to each other by key 1 and can move up and down thereupon, is oppositely provided with a static electromagnetic induction coil 22 with magnet 21, and the two ends of electromagnetic induction coil 22 It is connected with the rechargeable battery E and the power supply circuit 24 through the charging circuit 23 .

The charging circuit 23 is usually a diode rectification circuit, such as a single or two-diode half-bridge or four-diode full-bridge rectification circuit.

The magnetic core of the magnet 21 can be cylindrical, and can move up and down across the electromagnetic induction coil 22 to generate an induced potential.

The magnet 21 can be in the shape of a magnetic pot, the upper port is closed, and the magnetic core moves up and down in the middle to pass through the electromagnetic induction coil 22 to generate an induced potential. In other words, the magnet 21 is a magnetic tank whose top and surroundings are closed, and a cylinder 211 (preferably a cylinder) is arranged in the middle. The inner diameter of the electromagnetic induction coil 22 is greater than the outer diameter of the cylinder 211, and the cylinder 211 can be In and out of the electromagnetic induction coil 22 following the movement of the button 1, an induced current is generated in the electromagnetic induction coil 22, and then processed by circuits such as rectification, voltage stabilization, and charging for use by the system.

The magnetic pot magnet 21 can play better shielding and anti-interference effects.

Example 2:

The present embodiment has the keyboard of generating device, and embodiment 1 is substantially the same, and difference is: electromagnetic generating device 2 comprises an electromagnetic induction coil 22 that links to each other by key 1 and can move up and down thereupon, sets oppositely with electromagnetic induction coil 22 There is a static electromagnet 21, and the two ends of the electromagnetic induction coil 22 are connected with the rechargeable battery E and the power supply circuit 24 through the charging circuit 23.

Specifically, the electromagnetic induction coil 22 is fixed on the bottom of the button 1, the electromagnet 21 is in the shape of a magnetic rod, and is arranged between the button 1 and the button switch 11, and the outer diameter of the electromagnet 21 is smaller than the electromagnetic induction coil. The inner diameter of the coil 22 can move in and out therein, thereby generating an induced current in the electromagnetic induction coil 22 .

Claims (4)

1. A keyboard with a power generating device, comprising a keyboard body and a button (1) installed thereon, a button switch (11) located under the button (1), characterized in that the button (1) is provided with the electromagnetic power generation device (2) that can generate electricity with the up and down movement of the key; the electromagnetic power generation device (2) includes a magnet (21) that is connected with the key (1) and can move up and down thereupon , a static electromagnetic induction coil (22) is oppositely provided with the magnet (21), and the two ends of the electromagnetic induction coil (22) are connected with the rechargeable battery (E) and the external circuit (24) by the charging circuit (23); the magnet (21 ) is a magnetic tank with a top and four sides closed. The electromagnetic induction coil (22) is placed in the magnetic tank, and a cylinder (211) is arranged in the middle of the magnetic tank. The outer diameter, the cylinder (211) can move in and out with the key (1) in the electromagnetic induction coil (22). 2. The keyboard with a power generating device according to claim 1, characterized in that the surrounding walls of the magnet (21) are in the shape of a ring. 3. A keyboard with a power generating device according to claim 1 or 2, characterized in that the charging circuit (23) is a diode rectification circuit. 4. The keyboard with power generation device according to claim 3, characterized in that said diode rectification circuit is a half-bridge or full-bridge rectification circuit.

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