CN1163903C - Power generating device for electronic audio tape - Google Patents

Abstract

A power generating apparatus for an electronic tape recorder, comprising: the magnetic tape comprises a first gear disc, a second gear disc, a magnetic body, a coil and a rectifier/transformer, wherein the second gear disc is connected with the first gear disc in a transmission mode, the coil is arranged in a magnetic field of the magnetic body, the first gear disc can be driven by a rotating shaft of a cassette player and is used for transmitting the second gear disc, the magnetic body is arranged on the second gear disc, the movement of the magnetic body can act with the coil, alternating current power is generated by utilizing an electromagnetic cutting effect, and the alternating current power is converted into direct current power through the rectifier/transformer so as to supply power to an electronic recording tape for use.

Description

Power generating device for electronic audio tape

The invention relates to a power generating device, in particular to a power generating device which utilizes the electromagnetic cutting effect to supply power to cassette-type electronic recording tapes.

In daily life, cassette players (audio cassette player) or tape recorders (audio cassette recorder) are widely used by people, such as audio equipment on cars, portable audio players and advanced audio equipment for home use.

Due to the widespread application of computer technology and networks, a large amount of voice information is stored in a data compression format, such as MP3 format, so that storage, transmission, and processing are convenient and sound quality is improved. These digital voice messages must be played with special digital playback equipment or multimedia computers.

In order to enable the traditional cassette player to play digital voice information, digital electronic tapes (Digital Record) have recently emerged. This electronic tape is like a general tape, and can be inserted into the cassette slot of the cassette player to play the recording. There is an electronic device in the electronic tape to store digital voice information, and convert the digital voice information into an analog voice signal for the cassette player to play, so there must be a power supply in the electronic tape. For example, it supplies power necessary for storing voice data in a memory in an electronic tape or reading out voice data in the memory from an electronic tape. Yet because the volume of digital electronic tape is small, and the time of playing voice or music is long, if battery is placed in the digital electronic tape to provide its required power supply, just often need to change the battery of electronic tape, make use on Relatively inconvenient, this is the problem that must be solved.

The purpose of the present invention is to provide a power generation device for electronic audio tapes, which is used to install in the electronic audio tapes to provide the power required by the electronic audio tapes. The rotating shaft of the tape generates electricity through the mechanical rotation of the rotating shaft for the use of the electronic tape, so that the electronic tape can perform functions such as recording and playback without batteries, thereby facilitating use.

The object of the present invention is achieved by providing a power generating device for an electronic audio tape, which is used for playing sound in a cassette player, and the cassette player has a rotating shaft for Rotating the electronic tape, the power generating device includes: a first gear plate, which is sleeved on the rotating shaft; a second gear plate, which is connected with the first gear plate in a transmission mode, when the first gear When the disc rotates, it drives the second gear disc to rotate; a magnetic body is fixed on the same shaft as the second gear disc; a coil is placed in the magnetic field of the magnetic body, and when the magnetic body rotates, it generates Electromagnetic induction, and output a power; and a rectifier/transformer, convert the power into a DC power.

The present invention also provides a power generating device for an electronic audio tape. The electronic audio tape is used for playing sound in a cassette player. The cassette player has a rotating shaft for rotating the electronic audio tape. The power supply The generating device includes: a first wheel, which is sleeved on the rotating shaft; a second wheel, which is connected with the first gear wheel in a transmission mode, and when the first wheel rotates, drives the second wheel The two wheels rotate; a magnetic body is fixed on the same shaft as the second wheel; a coil is placed in the magnetic field of the magnetic body, and when the magnetic body rotates, it generates electromagnetic induction with the coil and outputs a power supply ; and a rectifier/transformer to convert the power supply to a DC power supply.

The above-mentioned second gear disc and the first gear disc can be driven by a chain or in a meshing manner. In addition, the second gear disc and the first gear disc can also be designed as non-gear structures, for example, the second gear disc and the first gear disc are replaced by the second gear disc and the first gear disc. When the second wheel disc and the first wheel disc are used to replace the second gear disc and the first gear disc, the transmission mode can be transmitted by means of rolling friction or by means of a transmission belt or a belt.

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is the relevant structural diagram of the electronic audio tape and cassette player of preferred embodiment of the present invention;

Fig. 2 is the structural diagram of electronic tape power generation device and cassette player rotating shaft in Fig. 1;

Fig. 3 is a structural diagram of replacing the gear disc with a wheel disc in Fig. 2 .

Please refer to FIG. 1 , which shows a related structural diagram of an electronic audio tape and a cassette player according to a preferred embodiment of the present invention. As shown in Figure 1, the power generation device 200 is set in the electronic audio tape 130, and the power generation device 200 has a first gear plate 210, when the user puts the electronic audio tape 130 into the cassette slot of the cassette player 100 At 110, the first gear plate 210 is sleeved on the rotating shaft 111 of the cassette player.

Please refer to FIG. 2 , which is a structural diagram of the power generating device of the electronic audio tape and the rotating shaft of the cassette player in FIG. 1 . As shown in FIG. 2 , the power generation device 200 includes: a first gear plate 210 , a second gear plate 220 , a magnetic body 230 , a coil 240 and a rectifier/transformer 250 . The first gear plate 210 is sleeved on the rotating shaft 111 and rotates with the rotating shaft 111 at the same angular velocity; the second gear plate 220 is meshed with the first gear plate 210 and driven. The magnetic body 230 and the second gear plate 220 are fixed on the same rotating shaft 235, and are driven by the second gear plate 220 at the same angular velocity. The magnetic body is, for example, a disk; When rotating, the magnetic body 230 and the coil 240 produce an electromagnetic cutting effect to generate AC current and AC voltage; the rectifier/transformer 250 is used to convert the AC current and AC voltage generated by the coil 240 into a DC that can be properly used by the electronic tape current and DC voltage.

When the user starts the cassette player 100 to play the recording, the rotating shaft 111 of the cassette player 100 will rotate, and drive the first gear plate 210 of the electronic tape 130, and rotate with the rotating shaft 111 at the same angular velocity, The second gear plate 220 with a smaller radius rotates at a faster angular velocity, and the magnetic body 230 also rotates thereupon, and the electromagnetic cutting effect between the magnetic body 230 and the coil 240 generates alternating current through the rotation of the magnetic body 230, and then The AC power is converted into usable DC power by the rectifier/transformer 250 to supply the electronic devices in the electronic tape 130 for use.

In Fig. 2, the transmission mode between the second gear plate 220 and the first gear plate 210 can be transmitted in a meshing manner, or can be transmitted by means of a chain, etc., and the second gear plate 220, the first gear plate 210 It can also be designed as a non-gear structure. Please refer to FIG. 3 , which is a structural diagram of a wheel disc instead of a gear disc in FIG. 2 . As shown in FIG. 3 , when the rotating shaft 111 rotates, the first wheel disc 30 is synchronously driven, thereby driving the second wheel disc 32 . Although in FIG. 3 , the transmission between the first wheel 30 and the second wheel 32 is driven by rolling friction, it can also be driven by a transmission belt, a belt, or the like.

In the description of the above-mentioned embodiment of the present invention, the radius of the second gear disc 220 (or the second disc 32) can be designed as a gear disc ( or roulette), so that the second gear plate 220 (or the second roulette 32) rotates at a faster angular velocity. Whether the electromagnetic induction generated by 240 is sufficient to provide a considerable power supply and other conditions.

The invention utilizes the rotating shaft of the cassette tape recorder to drive, and converts the power into electric power to be supplied to the power generation device used by the electronic recording tape, so that the electronic recording tape can work without batteries. For general small electronic devices, the operating voltage required for electronic recording and playback is about 3.3 volts (V), and they can work normally with only about 0.5 watts (W). Utilizing the technical features disclosed in the present invention can meet such requirements and make the use of the electronic audio tape more convenient without causing inconvenience due to short battery life and saving hardware costs.

In summary, although the present invention is disclosed in combination with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art should be able to make various changes without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be regarded as defined by the appended claims.

Claims (10)

1. the power supply generator of an electronic recording tape, this electronic recording tape is in order to carry out playback in a cassette cassette player, and this cassette cassette player has a rotation axis, and in order to rotate this electronic recording tape, this power supply generator comprises:

One first toothed disc is socketed on this rotation axis;

One second toothed disc, it is connected with this first toothed disc with a kind of drive, when this first toothed disc rotates, drives this second toothed disc and rotates;

One magnetic is fixed in same rotating shaft with this second toothed disc;

One coil places the magnetic field of this magnetic, when this magnetic rotates, produces electromagnetic induction with this coil, and exports a power supply; And

One rectification/transformer is a direct current power supply with this power source conversion.

2. power supply generator as claimed in claim 1, wherein this magnetic is a disk.

3. power supply generator as claimed in claim 1, wherein the radius of this second toothed disc is less than the radius of this first toothed disc.

4. power supply generator as claimed in claim 1, wherein this first toothed disc and second toothed disc are with the mode transmission of engagement.

5. power supply generator as claimed in claim 1, wherein this first toothed disc and second toothed disc come transmission with chain.

6. the power supply generator of an electronic recording tape, this electronic recording tape is in order to carry out playback in a cassette cassette player, and this cassette cassette player has a rotation axis, and in order to rotate this electronic recording tape, this power supply generator comprises:

One first wheel disc is socketed on this rotation axis;

One second wheel disc, it is connected with this first toothed disc with a kind of drive, when this first wheel disc rotates, drives this second wheel disc and rotates;

One magnetic is fixed in same rotating shaft with this second wheel disc;

One coil places the magnetic field of this magnetic, when this magnetic rotates, produces electromagnetic induction with this coil, and exports a power supply; And

One rectification/transformer is a direct current power supply with this power source conversion.

7. power supply generator as claimed in claim 6, wherein this magnetic is a disk.

8. power supply generator as claimed in claim 6, wherein the radius of this second wheel disc is less than the radius of this first wheel disc.

9. power supply generator as claimed in claim 6, wherein this first wheel disc and second wheel disc are with the mode transmission of rolling friction.

10. power supply generator as claimed in claim 6, wherein this first wheel disc and second wheel disc use transmission to bring transmission.

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