JP2003079063A - Electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an electronic device, which can charge a secondary battery, by operating a drive motor which actuates an intrinsic function of an electronic device body as a generator, without installing an independent generator, when the state of charge of the built-in secondary battery is reduced. SOLUTION: The electronic device is constituted of an electronic device body built-in inside a cabinet 10; the secondary battery 30 to supply power to actuate the intrinsic function of the electronic device body; a drive motor 220 to actuate the function with power from the secondary battery 30; a train of gears 230 which is disengaged from the drive motor 220 when actuating the electronic device body with the intrinsic function, and is coupled to a rotor of the drive motor 220, for operating the drive motor 220 as the generator when charging the secondary battery 30; a charging circuit part 50A to charge the secondary battery 30; and a rotating means, for example, a handle 210, which is mounted on the external surface of the cabinet 10, and manually rotates the train of gears 230.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device provided with a storage element and a drive motor for operating the original function of the electronic device main body by the electric power of the storage element, and particularly when the storage amount of the storage element decreases. In addition, the present invention relates to an electronic device that causes the drive motor to function as a generator to charge the storage element.

[0002]

2. Description of the Related Art Due to the increase in the use of fossil fuels since the Industrial Revolution, environmental destruction due to fossil fuel combustion and depletion of fossil fuels have become major problems for humankind in the 21st century.

[0003] For household electronic devices, a technique for reducing power consumption has been advanced, but on the other hand, the number has increased exponentially. In particular, a battery-powered portable electronic device is one of the most noticeable products in the electric and electronic industry in the future, and thus it is desired to reduce its power consumption.

Conventional optical and magneto-optical recording / reproducing devices such as portable MD (mini disc) devices, CD (compact discs) and DVDs (digital versatile discs) always require charging from an outlet, ,
As the frequency of use increases, the environmental load is increasing. Also, because it requires charging from a household outlet,
If the battery is discharged in the city, it is necessary to recharge it from the outlet or replace the primary battery if it can be used with the primary battery, and in most cases, you have to stop playing music etc. There wasn't.

For this reason, an electronic device partially provided with a power generator has been proposed or proposed. For example, a hand-operated radio receiver (manufactured by Sony Corporation, JP 2000-17465 A).
5), remote control with built-in generator (Japanese Patent Laid-Open No. 7-2
40968, Japanese Patent Laid-Open No. 2000-197310) and the like.

[0006]

However, these electronic devices are, in the end, a combination of two devices, a radio receiving device or a remote control device and a generator, with a single generator incorporated therein. A main drive motor or a drive motor equivalent thereto, such as a drive motor that rotationally drives an optical or magneto-optical disk as in an optical or magneto-optical disk device, a drive motor that drives a magnetic tape as in a magnetic tape device, etc. No example is found in which the device is also used as a power generator and the power storage element built in the device is charged.

Therefore, according to the present invention, when the amount of electricity stored in the built-in electricity storage element is reduced, an independent generator is not provided.
An object of the present invention is to obtain an electronic device that charges a storage element by causing a drive motor that operates the original function of the electronic device main body to function as a generator.

[0008]

Therefore, in the invention described in claim 1, an electronic device including a rechargeable electric storage element and a drive motor for operating the original function of the electronic apparatus main body by the electric power of the electric storage element. In the apparatus, when the charge amount of the storage element is reduced, the drive motor is caused to function as a generator to generate power, and the storage element is charged with the generated current, thereby solving the above problem. ing.

According to a second aspect of the present invention, the electronic device is provided with a rechargeable storage element for supplying electric power for operating the original function of the electronic apparatus main body, and the electric power of the storage element operates the function. And a power generation rotation means for manually rotating the rotor of the drive motor to cause the drive motor to function as a generator when the amount of electricity stored in the electricity storage element decreases, and power generation by the power generation rotation means. The charging circuit means for charging the storage element with the generated current is provided and configured to solve the above problems.

According to a third aspect of the invention, the electric power generating and rotating means in the electronic device according to the second aspect comprises a plurality of gear trains and a rotating means for rotating the gear trains. It is characterized by

Further, according to the invention described in claim 4,
The electronic device includes a cabinet, an electronic device main body, a rechargeable storage element for supplying electric power for operating the original function of the electronic device main body, and an electric power of the storage element. In order to operate the drive motor that operates the function and the electronic device main body away from the drive motor when operating with the original function, and to cause the drive motor to function as a generator when charging the storage element. A gear train connected to the rotor of the drive motor; charging circuit means for charging the power storage element; and rotating means mounted on the outer surface of the cabinet for manually rotating the gear train. When the storage element is charged, the rotating means is manually rotated to rotate the rotor of the drive motor through the gear train, and the generated electric current Configured to charge the serial storage element, it solves the problems.

Further, in the invention described in claim 5, when the electronic device main body in the electronic device according to claim 4 is operated by the original function, the rotating means is mounted on the outer surface of the cabinet. , When connecting so that electric power can be automatically supplied from the storage element to the electronic device main body, and automatically separating the gear train from the rotor of the drive motor to charge the storage element, By disconnecting the rotating means from the mounted state of the cabinet to cut off the power supply to the electronic device body of the storage element, connecting the charging circuit means to the storage element,
Then, the gear train is configured to include a switching unit that automatically connects the gear train from the separated state to the rotor of the drive motor, thereby solving the above problem.

Further, according to the invention described in claim 6, the rotating means in the electronic device according to claim 5 has a base end portion connected to a rotating shaft of an outermost gear of the gear train. A handle composed of an arm portion that is hingedly connected to the base end thereof and has a rotation knob formed on the cabinet surface side of the tip end portion, wherein at least the rotation knob is formed on the cabinet when not charged. The electronic device body is automatically operated in its original function by pressing the switching means housed in the concave portion and facing the concave portion. The knob is pulled out from the concave portion and the arm portion is inverted to release the pressing of the switching means, so that the gear train is automatically connected to the rotor of the drive motor and the charging is performed. Connect the circuit means to said storage element,
The drive motor is configured to function as a generator by pinching the rotation knob and rotating the handle, thereby solving the above problem.

Furthermore, the invention according to claim 7 is characterized in that the drive motor in the electronic device according to claim 4 is an optical disk, a magneto-optical disk, or a spindle motor for rotationally driving a magnetic disk. .

Further, in the invention described in claim 8, the drive motor in the electronic device according to claim 4 is a magnetic tape running capstan motor or a magnetic tape loading motor.

Therefore, according to the invention of claim 1,
The drive motor can also be used as a generator to generate power, and the built-in power storage element can be charged with the generated current.

According to the second aspect of the present invention, when the drive motor is also used as a generator to generate electric power and the built-in power storage element is charged with the generated electric current, the drive motor is rotated by the electric power generation rotating means. Rotate the child manually to generate electricity,
The electricity storage element can be charged by adjusting the generated current to a charging current having a desired value by the charging circuit means.

According to the third aspect of the present invention, in addition to the function of the electronic device according to the second aspect, the drive motor is rotated by providing the power generation rotating means with a plurality of gear trains. The rotation of the child can be easily increased.

Further, according to the invention described in claim 4, since the rotating means is provided, the gear train can be easily speeded up and rotated manually by using the rotating means.

Further, according to the invention described in claim 5, in addition to the operation of the electronic device according to claim 4, the rotating means is mounted in the cabinet and is separated from the mounted state. , The electronic device can be automatically switched between the original operating state and the charging state.

Further, according to the invention described in claim 6, in addition to the operation of the electronic device according to claim 5, the state in which the handle is mounted on the surface of the cabinet and the state in which the handle is detached from the mounted state are set. By doing so, the electronic device can be automatically switched between the original operating state and the charging state, and the rotation knob of the handle is picked up to accelerate and rotate the gear train and the rotor of the drive motor to easily generate power, The storage element can be charged.

According to the invention of claim 7, in addition to the effect of the electronic device of claim 4, the electronic device is an optical disk device, a magneto-optical disk device or a magnetic disk device. In this case, those optical disks, magneto-optical disks, or spindle motors for rotating the magnetic disks can be used as a generator.

Further, according to the invention described in claim 8, in addition to the effect of the electronic device according to claim 4, when the electronic device is a magnetic tape device, the electronic device is used for running the magnetic tape. A capstan motor or a magnetic tape loading motor can be used as a generator.

[0024]

DETAILED DESCRIPTION OF THE INVENTION An electronic device according to an embodiment of the present invention will be described below with reference to the drawings. In the following description, an MD device will be taken as one of the electronic devices.

FIG. 1 is a rear plan view of an MD device according to an embodiment of the present invention when it is originally operated, and FIG. 2 is a plan view showing only a gear train incorporated in FIG.
3 is an enlarged sectional side view taken along the line AA of FIG.
Is a rear plan view of the MD device shown in FIG. 1 during charging,
FIG. 5 is a plan view showing only a gear train in a charged state as seen through from below, FIG. 6 is an enlarged sectional side view taken along the line AA of FIG. 4, and FIG. 7 is an original operation and charging of the MD device. FIG. 8 is a plan view of the gear train showing the operation, FIG. 8 is a block circuit diagram of a charging / discharging circuit unit incorporated in the electronic device of the invention, and FIG. 9 is a gear train mechanism of an embodiment in which a wire is used as a rotating means. FIG. 10 is a plan view of a gear train mechanism of an embodiment in which a grip handle is used as a rotating unit for rotation, and FIG. 11 is a plan view of a gear train mechanism in which a dial is used as a rotating unit for rotation. FIG. 12 is a schematic plan view of a magnetic tape device when a gear train is rotated by using a rotating handle as a rotating means and an incorporated capstan drive motor is used as a generator.

The MD device is provided with an optical pickup unit for recording / reproducing an audio signal originally of the MD device, an audio signal recording / reproducing circuit unit, a control unit unit, an operation unit, etc. Since it is not a main part of the above, those parts are not shown in each figure.

First, the M of the present invention will be described with reference to FIGS.
The configuration and structure of the D device will be described.

In the figure, reference numeral 1 generally indicates an MD device. This MD device 1 includes a power generation / rotation means 20 including a drive motor, which is a main part of the present invention, in a cabinet 10.
(FIGS. 2 and 3), a rechargeable power storage element, for example, a power supply unit (not shown) including a secondary battery 30 (FIG. 8), a cassette compartment 40 (FIGS. 3 and 6), and a charging / discharging circuit unit 50.
(FIG. 8) and the like.

The cabinet 10 is formed in a flat, substantially cubic structure, and various operation buttons and the like are arranged on the front surface side thereof, but the outer surface on the rear surface 11 side is
As will be described later, one rotation means, specifically, a handle 210, which constitutes the power generation rotation means 20 for driving the gear train arranged therein is mounted. Further, the inside of the cabinet 10 is divided into two upper and lower stages in a substantially central portion, and in the central portion, the power supply circuit of the power supply portion and the charge / discharge circuit portion 5 are provided.
0, an electronic circuit board 60 on which an audio signal recording / reproducing circuit and various control circuits are formed is incorporated.

The upper stage of the cabinet 10 is a cassette compartment 40 in which a drive motor 220 main body and its spindle are arranged, and a disk cartridge 70 which is mounted on the spindle and accommodates an MD rotating at a high speed is mounted. It

In the lower stage of the cabinet 10, the power generation / rotation means 20 including the drive motor 220 excluding the handle 210, a part of the charging / discharging circuit section 50, and the like are incorporated.

Furthermore, on the rear surface 11 side surface of the cabinet 10, there is formed a handle storage portion 12 having a depth substantially equal to the thickness of the arm 212 of the handle 210 and a shape following the contour of the arm 212. At times other than when power is being generated (when charging), the handle 2 is placed in the handle storage unit 12.
10 has a structure in which it can be housed in the same plane as the surface of the cabinet 10 on the rear surface 11 side. The bottom of the recess 121 of the handle housing 12 that contacts the tip of the arm 212 will be described in detail later, but the charging / discharging circuit unit 5 shown in FIG.
The button 51 for switching the charging on / off switches 52 and 57 of 0 is biased by a spring (not shown)
It is formed so as to project to the space side of 1.

The handle 210 has a base end 21.
1, an arm 212 and a rotation knob 213. The arm 212 is connected to the base end portion 211 by a hinge 214, and the arm 212 rotates about a plane of the base end portion 211 through a rotation angle of about 180 degrees. Can move, arm 212
A rotary knob 213 is formed perpendicular to the plane of the arm 212 on the cabinet 10 surface side of the tip of the, and when the user opens the rotary knob 213 as shown in FIG. By picking and rotating the arm 212 in a plane substantially parallel to the back surface 11 of the cabinet 10, the base end portion 211 also rotates, and the base end portion 211 is disposed inside the cabinet 10 as described later. It is connected to the rotating shaft of the outermost gear of the gear train 230, which is a component of the power generation rotating means 20. In addition, the base end portion 211
To the rear of the arm when the arm 212 is fully opened.
A stopper 215 having a pillow structure is provided so as not to rotate more than a rotation angle of 0 degree (FIGS. 1 and 3).

Also, as shown in FIG.
When the handle is stored in the handle storage unit 12, the rotary knob 2
13 fits into the recess 121, and the button 51
Press to retreat inward. To store the handle 210, the charging on / off switches 52 and 57 of the charging / discharging circuit unit 50 (FIG. 8) are switched.

As shown in FIGS. 2 and 3, the main body of the drive motor 220, which is the main constituent element of the power generation / rotation means 20, is disposed in the upper central portion (front surface side) of the cabinet 10. The rotary shaft 221 of the drive motor 220 is pulled out toward the lower stage. The rotation shaft 221 has a gear train 230.
The gear 236 constituting the above is fixed.

The gear train 230 is arranged around the drive motor 220 and in the vicinity thereof, and gears 231 and 23 are provided.
2, 233, 234, 235, 236 and a swing arm 237.

The gear 231 is a large gear located on the outermost side with respect to the drive motor 220 and having a relatively large diameter. The gear 231 is rotatably supported by the rotary shaft 2311 and the base end portion 211 of the handle 210 is fixed. ing.

The gear 232 is a small gear having a relatively small diameter which meshes with the outer periphery of the gear 231. A gear 233 having a coaxial and medium diameter is formed below the small gear 232, and the gear 232 and the gear 233 are gears having a structure in which they are integrally overlapped with each other, and are supported by a rotary shaft 2321. .

A small gear 234 having a relatively small diameter meshes with the outer periphery of the gear 233. On the gear 234, a large gear 235 which is coaxial and has a relatively large diameter is integrally laminated. The gear 234 and the gear 235 are rotated by a swing arm 237,
It is supported.

The swing arm 237 includes a pair of rotating arms 2371 and 2372, a base end portion 2373 and a rotating shaft 2.
374 and a spring (not shown). These rotating arms 2371 and 2372 are supported by the base end portion 2373 and are formed in parallel with each other at a predetermined interval. A base end portion 2373 thereof is axially supported by a rotating shaft 2374, and a gear (not shown) 236 (drive motor 2
Biased towards 20). Lower rotation arm 2
An elongated hole 2375 having an inner peripheral surface formed into a tapered surface is formed in the middle portion of 372, and the tapered surface of the elongated hole 2375 is always in contact with the outer peripheral surface of the gear locking pin 238 so as to be inserted. Has been done.

The gears 234 and 235 are rotatably supported by the rotary shaft 2341 at the free ends of the pair of rotating arms 2371 and 2372.

In the gear train 230 described above, the maximum power generation capacity is known because the electric characteristics of the drive motor incorporated in the electronic device are known in advance, and the gear ratio is selected according to the maximum power generation capacity to increase the speed. The ratio can be set in advance, and the rotor can be rotated at high speed without burning the coil of the drive motor.

As shown in FIG. 8, the charging / discharging circuit section 50 includes a charging circuit section 50A and a discharging circuit section 50B, and a charging terminal including a movable terminal 521, a charging side fixed terminal 522 and a discharging side fixed terminal 523. An on / off switch 52, a rectifying circuit 53 connected to the charging side fixed terminal 522, a smoothing circuit 54 connected to the output side, a DC-DC converter 55 connected to the output side, and an output side thereof. The charging-side fixed terminal 562, the discharging-side fixed terminal 563 and the charging-on / off switch 56 having the movable terminal 561 are connected to each other, and the one discharging circuit section 50B includes the discharging-side fixed terminal 5 of the charging-on / off switch 56.
A motor drive circuit 57 connected to 63 is provided, the output side of which is the discharge side fixed terminal 5 of the charge on / off switch 52.
It is connected to 23. The drive motor 220 is connected to the movable terminal 521 of the charging on / off switch 52, and the secondary battery 30 is connected to the movable terminal 561 of the charging on / off switch 56.

Both charging on / off switches 52 and 56
Are configured to interlock in response to the pressing operation of the button 51 (FIGS. 3 and 6). That is, when the handle 210 is raised from the handle storage portion 12 of the cabinet 10, the button 51 projects to the space side of the recess 121 (FIG. 6), and the movable terminals 521 and 561 are interlocked with each other in response to this movement, respectively. The drive motor 220 is automatically connected to the fixed terminals 522 and 562, the function of the drive motor 220 is switched, and the charging circuit unit 50A is connected to the secondary battery 30.

Also, the handle 210 is the handle storage portion 1.
When stored in 2, the button 51 is pushed by the rotary knob 213 and retracts inward (FIG. 3), and the movable terminals 521 and 561 are interlocked with each other in response to this movement, and the discharge-side fixed terminals 523 and 563, respectively. Side, automatically connected to the secondary battery 30
Power is supplied to the drive motor 220.

Next, the MD device 1 configured as described above.
The operation of the power generation (charging) function of will be described.

First, referring to FIGS. 1 to 3 and 8, the handle 210 is the handle storage portion 12 of the cabinet 10.
First, the case where the MD device 1 is in the normal recording / reproducing state will be described.

In the state where the handle 210 is stored in the handle storage portion 12, the arm 212 is moved to the gear stopper pin 2.
38, and the rotary knob 213 presses the button 51. When the gear stop pin 238 is pressed, it deeply enters into the elongated hole 2375 formed in the rotating arm 2372 of the swing arm 237, and the tapered surface of the elongated hole 2375 is pressed in accordance with the entry. By this operation, the swing arm 237 rotates upward (counterclockwise) in the figure as shown in FIG. 2 against a spring (not shown). With this rotation, the gear 235 retracts from the gear 236, and the engagement between the two is released. Therefore, the rotary shaft 221 (rotor) of the drive motor 220 can freely rotate.

When the button 51 is pressed, the charge on / off switch 52 of the charge / discharge circuit section 50 shown in FIG.
The respective movable terminals 521, 561 of 56 are switched to the discharge side fixed terminals 523, 563 side which is the discharge side, and the secondary battery 30 charged to the motor driver circuit 57.
The electric power is discharged to the side, and the drive motor 220 is driven at a predetermined rotation speed. Therefore, the MD mounted on the MD device 1 can be rotated at a predetermined rotation speed to record and reproduce the audio signal.

Next, referring to FIG. 4 to FIG. 6 and FIG. 8, the handle 210 is the handle storage portion 12 of the cabinet 10.
A state in which the MD device 1 is in a charging (power generation) state will be described.

From the stored state of the handle 210 shown in FIG. 1, as shown in FIGS.
The handle 212, the arm 212 is inverted about the hinge 214, and the user turns the rotary knob 2
Open 13 to make it easier to pick. By the pulling-out operation of the arm 212, the pressing force of the gear stop pin 238 is released, the gear stop pin 238 projects outward, and at the same time, the swing arm 237 is pulled by a spring (not shown), and the state shown in FIG. As shown in FIG. 5, it rotates downward (clockwise) in the drawing. With this rotation, the gear 235 is brought into a state of automatically meshing with the gear 236.

Further, the button 51 is released from the pressing, and the movable terminals 521 and 56 of the charging on / off switches 52 and 56 are released.
1 is automatically switched to the charging side fixed terminals 522, 562 side by the action of a spring (not shown) to form the charging circuit section 50A.

In these states, the user rotates the rotary knob 213.
When the handle 210 is rotated counterclockwise as shown by the arrow in FIG. 5, the drive motor 220 functions as a generator and the base end portion 211 of the handle 210 causes the gear 2 to rotate.
31 is rotated in the same direction, and the rotational force thereof causes the gears 232, 2
33 rotates clockwise, its rotational force rotates in the counterclockwise direction of gears 234 and 235, and its rotational force accelerates the gear 236 through the gear 235 and the rotor of the drive motor 220 in the clockwise direction. . When the rotor rotates, an electromotive force is generated in the coil of the drive motor 220 to generate electricity.

The generated current is rectified by the rectifying circuit 53, stabilized by the smoothing circuit 54, the charging voltage is controlled by the DC-DC converter 55, and the charging side fixed terminal 562,
A charging current is supplied to the secondary battery 30 via the movable terminal 561 to charge the secondary battery 30.

FIG. 7 shows the position of the swing arm 237 during normal operation (during discharge) and the position of the swing arm 237 during charge in an overlapping manner. The position during discharging is indicated by a dotted line, and the position during charging is indicated by a solid line.

As described above, according to the present invention, the drive motor 220 can also be used as a generator to generate electric power, and the built-in power storage element can be charged with the generated electric current.
According to the present invention, when the drive motor 220 also functions as a generator to generate electric power and the built-in secondary battery 30 is charged with the generated electric current, the rotor of the drive motor 220 is manually operated by the electric power generation / rotation means 20. It is possible to charge the secondary battery 30 by rotating the battery to generate power and adjusting the generated current to a charging current having a desired value by the charging circuit unit 50A. Further, according to the present invention, since the power generation rotating means 20 is provided with the gear train 230 including a plurality of gears, the rotation of the rotor of the drive motor 220 can be easily increased. Further, since the rotating means such as the handle 210 is provided, the gear train 230 can be easily accelerated and rotated manually by using the rotating means. Further, according to the present invention, the electronic device 1 can be automatically switched between the original operating state and the charging state by placing the rotating means in the cabinet 10 and removing the rotating means from the attached state. it can. Furthermore, according to the present invention,
The handle 210 is used as the rotating means, and the handle 2
The electronic device 1 can be automatically switched between the original operating state and the charging state by setting the state where the electronic device 1 is mounted on the surface of the cabinet 10 and the state where the electronic device 1 is detached from the mounted state. To increase the speed of the gear train 230 and the rotor of the drive motor 220.
It can be rotated and easily generate power to charge the storage element.

For the drive motor 220 of the MD device 1, for example, a spindle motor NBL3021 manufactured by Nitto Zoki Co., Ltd.
As the secondary battery 30, a storage element that allows the relationship of discharge voltage << charging voltage, that is, a storage element that can be charged (rapid charging) in an overcurrent state, such as NiCd / NiMH, lead battery, etc. When charged using the gear train 230 having a ratio of 41.7, the normal operation time of the MD device 1 is about 5
It was possible for 4 minutes. However, other conditions in this case are: 1. The rotation speed of the handle 210 is fixed at 120 rpm 2. Power generation time is 10 minutes 3. Power generation efficiency is 80% 4. The power consumption of the MD device 1 is about 30 mW except for driving the drive motor 220. The number of rotations of the motor during the operation of the MD device 1 is 1,
It was set to 000 rpm.

Drive motor 220 incorporated in various electronic devices
Are different from each other, the secondary battery 30 suitable for charging can be selected and the speed increasing ratio of the gear train 230 can also be set naturally if the design is performed in consideration of use as a generator.

The relation of discharge voltage << charge voltage is not allowed, that is, a storage element that cannot be charged (quick charge) in an overcurrent state, for example, Li-ion, NiCd / N.
When charging using iMH or the like, the charging circuit unit 50
It is advisable to take measures to prevent overcharge by controlling the charging voltage of the DC-DC converter 55 of A.

In the above embodiment, the handle 210 is used as a means for rotating the gear train 230. Instead of the handle 210, the wire 810 is integrated with the gear 231 as shown in FIG. One end is fixedly wound around the rotating hub 811, and the knob 812 attached to the most distal end of the hub 811 is pulled to pull the gear train 2
At 30, the rotor of the drive motor 220 is accelerated and rotated, and although not shown, when the wire 810 is rewound, the gear 2 is rotated to prevent the drive motor 220 from rotating in the reverse direction.
34 does not rotate integrally with the gear 235 but incorporates a mechanism such as a ratchet that rotates only in one direction so as to rotate idly. Note that, also in the case of this embodiment, other structures and configurations such as the gear train 230 are the same as those shown in FIG.

Further, as shown in FIG. 10, a base end portion is pivotally supported on an end portion of one side surface of the cabinet 10, and a grip handle 820 having a rack 821 fixed to the tip end portion thereof is attached to the inner end surface of the rack. The formed tooth 822 and the gear 2
It is also possible to rotate the gear 231a by rotating the gear 231a by engaging with 31b and gripping the grip handle 820 to generate electric power by rotating the rotor of the drive motor 220. A spring 823 is attached to the base end of the grip handle 820 so that the grip handle 820 is always opened from the side surface of the cabinet 10. Although not shown, even when this grip handle 820 is used, when the grip handle 820 is opened by the spring 823, the gear 234 does not rotate integrally with the gear 235 to prevent reverse rotation of the drive motor 220. , A mechanism such as a ratchet that rotates only in one direction is incorporated so as to rotate freely. The configuration of the gear train 230A in this embodiment is different from that of the gear train 230 shown in FIG. 2, and a small diameter gear 231b and a large diameter gear 231a that mesh with the teeth 822 of the rack 821 are integrally concentric. It is configured by a gear train including gears formed by overlapping the shafts, and it is added that this gear train can be configured with an arbitrary gear ratio as necessary,
The configuration, the principle of operation, and the like are the same as those shown in FIG. 2, so a detailed description thereof will be omitted.

Furthermore, as shown in FIG. 11, the dial 830 is formed with a diameter slightly larger than that of the gear 231.
A part of the rotor is exposed from one side of the cabinet 10 and is integrally formed on the gear 231 by concentric shafts so that the rotor can be rotated by a user rotating the dial 830 during charging. May be rotated to generate power. Also in this case, the structure of the gear train 230, the principle of operation, and the like are the same as those shown in FIG. 2, and thus detailed description thereof will be omitted.

In the above-described embodiment, the drive motor 22 for rotationally driving the MD is used as the electronic device equipped with the drive motor.
Although the MD device 1 provided with 0 has been described, other examples of the electronic device provided with the drive motor include an optical or magneto-optical recording / reproducing device other than the MD device, a compact cassette device, a portable video camera device. Such as a magnetic tape device, a portable vacuum cleaner and the like.

In the case of an optical or magneto-optical recording / reproducing device,
Similar to the MD device 1, the drive motor that rotationally drives the optical or magneto-optical disk may also be used as a generator.

As shown in FIG. 12, the magnetic tape unit 9
In the case of 0, the drive motor 220 is a capstan motor, and the drive motor 220 is used as a generator. When generating power, the gear 236 fixed to the rotation shaft of the capstan motor 220 is connected to the gear 234 of the gear train 230. And the knob 92 of the rotary handle 91 shown by the broken line is rotated in the clockwise direction indicated by the arrow.
Can be rotated in the direction of the arrow, and the gear 236 can be rotated counterclockwise to generate electricity.

The alternate long and short dash line indicates a magnetic tape cassette Ct such as a compact cassette, and the magnetic tape T is sandwiched between a capstan 93 fixed to the rotation shaft of the capstan drive motor 220 and a pinch roller (not shown). It is sent at a predetermined speed.

In the case of the magnetic tape device, if a reel drive motor is separately provided in addition to the capstan drive motor, the reel drive motor can be used as a generator,
Alternatively, when a drive motor for the cassette holder is separately provided, the drive motor can also be used as a generator. In the case of a magnetic tape device such as a portable video camera device, as in the case of a magnetic tape device such as a compact cassette, a rotary head motor is used as a generator in addition to the capstan drive motor and the cassette holder drive motor. May be. In the case of a portable vacuum cleaner, the suction motor may also be used as a generator.

[0068]

As described above, according to the electronic device of the present invention, when charging, the main or similar drive motor incorporated therein also serves as the generator, and the user rotates the gear train. The rotor of the drive motor can be rotated at high speed to generate electric power, and the generated current can charge the secondary battery having a reduced amount of stored electricity.

Therefore, in consideration of the global environment, it is not necessary to use the primary battery if the electronic device is designed to be operated by using the secondary battery from the beginning.

Even if the electronic device is designed to operate using the primary battery, the built-in drive motor can be used as a generator when the primary battery or the secondary battery is exhausted. It can be used for emergencies and has excellent effects.

[Brief description of drawings]

FIG. 1 is a rear plan view of an MD device according to an embodiment of the present invention when it is originally operated.

FIG. 2 is a plan view showing only a gear train incorporated in FIG. 1 as seen through from below.

FIG. 3 is an enlarged sectional side view taken along the line AA of FIG.

FIG. 4 is a rear plan view of the MD device shown in FIG. 1 during charging.

FIG. 5 is a plan view showing only a gear train in a charged state as seen through from below.

6 is an enlarged cross-sectional side view taken along the line AA of FIG.

FIG. 7 is a plan view of a gear train showing the operation of the MD device during the original operation and during the charging.

FIG. 8 is a block circuit diagram of a charge / discharge circuit unit incorporated in the electronic device of the invention.

FIG. 9 is a plan view of a gear train mechanism according to an embodiment in which a wire is used as a rotating unit for rotation.

FIG. 10 is a plan view of a gear train mechanism according to an embodiment in which a grip handle is used as a rotating unit for rotation.

FIG. 11 is a plan view of a gear train mechanism according to an embodiment in which a dial is used as a rotating unit for rotation.

FIG. 12 is a schematic plan view of a magnetic tape device when a gear train is rotated by using a rotating handle as a rotating unit and an incorporated capstan drive motor is used as a generator.

[Explanation of symbols]

1 ... MD device of one embodiment, 10 ... Cabinet, 11
... back side of cabinet 10, 20 ... power generation rotating means 20,
210 ... handle, 211 ... proximal end of handle 210,
212 ... Arm of handle 210, 213 ... Rotating knob,
214 ... Hinge, 215 ... Stopper, 220 ... Drive motor, 221 ... Rotating shaft, 230 ... Gear train, 231, 23
2, 233, 234, 235, 236 ... Gears, 237 ...
Swing arm, 2371, 372 ... Rotating arm, 23
73 ... Proximal end portions 237 of rotating arms 2371 and 2372
4 ... rotary shaft, 2375 ... long hole, 238 ... gear stop pin,
30 ... Secondary battery, 40 ... Cassette compartment, 5
0 ... Charge / discharge circuit section, 50A ... Charge circuit section, 50B ... Discharge circuit section, 51 ... Button, 52, 56 ... Charge on / off switch, 53 ... Rectifier circuit, 54 ... Smoothing circuit, 55 ... DC-
DC converter, 57 ... Motor drive circuit, 60 ... Electronic circuit board, 70 ... Disk cartridge, 810 ... Wire, 811 ... Hub, 812 ... Pick, 820 ... Grip handle, 821 ... Rack, 822 ... Tooth, 830 ... Dial, 90 ... Magnetic tape device, 91 ... Rotating handle, 9
2 ... Pick, 93 ... Capstan, Ct ... Magnetic tape cassette, T ... Magnetic tape

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Takashi Takamatsu             Sony 6-735 Kitashinagawa, Shinagawa-ku, Tokyo             Within the corporation F-term (reference) 5G003 AA07 BA01 CA01 CA12 GB03                 5H607 AA11 AA15 BB01 BB02 CC01                       CC03 DD05 DD17 EE31 EE36

Claims (8)

[Claims] 1. An electronic device comprising a chargeable storage element and a drive motor for operating the original function of the electronic apparatus main body by the electric power of the storage element, wherein when the charge amount of the storage element decreases, An electronic device configured to cause a drive motor to function as a generator to generate electric power, and to charge the storage element with the generated electric current. 2. A rechargeable storage element for supplying electric power for operating the original function of the electronic device body, a drive motor for operating the function by the electric power of the storage element, and a storage amount of the storage element. A power generation rotating means for manually rotating the rotor of the drive motor to cause the drive motor to function as a generator when the number decreases, and a charging circuit means for charging the storage element with a current generated by the power generation rotating means. An electronic device comprising: 3. The electronic device according to claim 2, wherein the power generation rotating means includes a plurality of gear trains and a rotating means for rotating the gear trains. 4. A cabinet, an electronic device main body contained in the cabinet, a rechargeable storage element for supplying electric power for operating the original function of the electronic device main body, and electric power of the storage element. In the case of operating the drive motor for operating the function by the above, and operating the electronic device body with the original function,
A gear train connected to a rotor of the drive motor to cause the drive motor to function as a generator when the storage device is charged away from the drive motor, and a charging circuit means for charging the storage device. And a rotating means that is mounted on the outer surface of the cabinet and that rotates the gear train manually, and the drive motor is rotated via the gear train by manually rotating the rotating mechanism when the storage element is charged. The electronic device, wherein the rotor is rotated to charge the storage element with a generated current. 5. When the electronic device body is operated by its original function, the rotating means is mounted on the outer surface of the cabinet so that electric power can be automatically supplied from the power storage element to the electronic device body. When the storage device is connected, and the gear train is automatically separated from the rotor of the drive motor to charge the storage element, the rotating means is detached from the mounted state of the cabinet to store the storage element. The electronic device main body is provided with switching means for cutting off power supply, connecting the charging circuit means to the storage element, and automatically connecting the gear train from the separated state to the rotor of the drive motor. The electronic device according to claim 4, wherein the electronic device is provided. 6. The rotating means has a base end portion connected to a rotation shaft of an outermost gear of the gear train, is connected to the base end portion by a hinge, and rotates toward a cabinet surface side of a tip end portion. A handle comprising an arm portion having a knob formed therein, wherein at least the rotary knob is housed in a concave portion formed in the cabinet and is arranged facing the concave portion when not charged. Is pressed to bring the electronic device main body into a state in which it automatically operates with its original function, and when the storage element is charged, the rotation knob is pulled out from the concave portion and the arm portion is inverted to switch the switching means. Release the pressure, automatically connect the gear train to the rotor of the drive motor, connect the charging circuit means to the storage element, and pinch the rotary knob to rotate the handle. 6. The drive motor is caused to function as a generator by causing the drive motor to operate.
The electronic device according to. 7. The electronic device according to claim 4, wherein the drive motor is an optical disk, a magneto-optical disk, or a spindle motor for rotationally driving a magnetic disk. 8. The electronic device according to claim 4, wherein the drive motor is a magnetic tape running capstan motor or a magnetic tape loading motor.