JPH11289715A - Manual generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a load from increasing by supplying power to external equipment when the external equipment is connected to a supply part and automatically switching power feed so that a secondary battery can be charged when the external equipment is not connected. SOLUTION: While a connection connector 15 is inserted into a cylindrical case 21, a side part electrode 24 and an electrode 23 are brought into contact each other for continuity, and an electrode lead B is connected to an electrode lead C for charging a secondary battery. Then, the connection connector 15 is inserted into a supply terminal part 6, the side part electrode 24 is pushed and bent by an engagement part 25 of the connection connector 15, the continuity with the electrode 23 is canceled and charging is stopped, the side part electrode 24 is brought into contact with an external electrode 26 for continuity, a central electrode 22 is brought into contact with an internal electrode 27 for continuity, and power is supplied to the external equipment via a power- feeding cable 16 by switching.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manual generator that can manually supply power to external devices, particularly small portable devices, and can also charge secondary batteries.

[0002]

2. Description of the Related Art In recent years, with the development of electronics, various devices have been miniaturized and used as portable devices such as mobile phones and personal computers.

[0003] These portable devices are powered by batteries because they can be moved. However, when these batteries are exhausted, the portable devices cannot be used. Etc., but it is not always possessed and sometimes there is no power supply nearby when trying to charge.

[0004] As shown in the Great Hanshin Earthquake and the like, when there is no power supply, disasters such as earthquakes are conceivable. In these disasters, communication devices such as mobile phones and wireless devices play an important role as communication means. That is a well-known fact.

For this reason, in recent years, manual generators capable of manually supplying power to these portable devices even in an emergency or the like have been reconsidered. Devices that can be recharged are being developed.

[0006]

However, in a manual generator that supplies power to these portable devices and charges a secondary battery, power is supplied to external devices in addition to charging the secondary batteries. , The load increases,
Since the generator motor is rotated manually, there is a problem that the rotating torque becomes extremely large and the hand becomes tired.

In addition, in order to individually supply and charge these portable devices, it is necessary to sequentially switch a changeover switch and the like, which is troublesome.

Therefore, the present invention has been made in view of the above-mentioned problems, and by connecting a portable device or the like,
It is an object of the present invention to provide a manual generator that can prevent the power supply method from automatically switching from charging to power supply and increasing the load.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a manual generator according to the present invention is provided with at least one generator motor that is manually rotated to generate electricity, and rectifies an output current from the generator motor. A power generator for supplying a current output from the voltage regulator to an external device, and a storage unit for storing a rechargeable secondary battery. Power supply switching for automatically supplying power to an external device when the external device is connected to the supply unit, and automatically charging a secondary battery when the external device is not connected. Means are provided. According to this feature, by connecting an external device such as a portable device, the power supply switching unit automatically supplies the generated power to only the external device, so that the rotational load of the generator motor increases. Since these switchings are performed automatically, there is no need to switch at any time, which is convenient.

[0010] In the manual generator according to the present invention, the power supply switching means is realized by a terminal configuration in which a power supply circuit is automatically switched when a connection terminal to an external device is mounted on the supply unit. Is preferred. With this configuration, the power supply switching means can be provided with a simple configuration, and reliable power supply switching can be performed with the simple configuration.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a top view showing a manual generator according to the present embodiment, FIG. 2 is a rear view showing the manual generator according to the present embodiment, and FIGS. FIG. 4 is an enlarged sectional view illustrating a power supply unit used in the manual generator according to the present embodiment and a connection state thereof, and FIG. 4 is a circuit diagram illustrating a circuit configuration of the manual generator according to the present embodiment.

The manual generator 1 according to the present embodiment has an appearance as shown in FIGS. 1 and 2, and a rotation lever 4 which is manually rotated is provided on the upper surface of the upper case 2. At its tip, a rotatable rotary knob 5 is provided.

As shown in FIG. 2, a battery case 7 in which four rechargeable batteries 10 can be stored is provided on the back of the manual generator 1, and this rechargeable battery 10 Electrode plates 8 are provided at both ends in contact with the battery case 7, and these upper case 2 and lower case 3
They are joined and integrated by bolts 9.

A side surface of the manual generator 1 is connected to a circuit board 17 which will be described later, is connected to a connector 15 for supplying electric power to an external device, conducts electricity, and supplies electric power to the external device. A supply terminal section 6 is provided as a supply section.

Inside the manual generator 1, a rotating gear A11 connected to the rotating lever 4 and rotatably supported is provided.
, A small-diameter rotary gear B12 'that meshes with the rotary gear A11 and rotates in conjunction therewith, and a rotary gear C12 that is coaxial with the rotary gear B12' and rotates integrally with the rotary gear B12 '. Meshes with this rotating gear C12,
A pinion gear 13 that cooperates to rotate a generator motor 14
When the rotation lever 4 is rotated, the rotation is accelerated and transmitted to the power generation motor 14 to generate power.

The manual generator 1 according to the present embodiment has a structure shown in FIG.
As shown in FIG. 2, two power generation motors 14 are provided internally, and these power generation motors 14 are connected to a circuit board 17 provided inside the main body.

The circuit configuration of the manual generator according to the present embodiment is as shown in FIG. 4, and the generator motor 14 is a three-layer motor.
An alternating current having a phase shift of 0 degrees is output to a full-wave rectifier circuit 19 composed of a diode or the like, and the generator motor 1
4 is converted to a direct current and output.

The direct current output from the full-wave rectifier circuit 19 is converted into a predetermined voltage by a voltage adjusting circuit as a voltage adjusting unit formed on the circuit board 17 as shown in FIG. The battery is supplied to the supply terminal section 6 or the secondary battery stored in the battery case 7.

Referring to the current control circuit shown in FIG. 4, the resistors R1 and R2 measure the voltage of the DC current output from the full-wave rectifier circuit 19 based on the voltage applied to both ends of the resistor R2. C1 is a capacitor for reducing noise caused by the opening and closing of the circuit by the FET transistor T1. Similarly, R3 and C2 are high spikes caused by the ON / OFF of the current by the FET transistor T1. This is a snubber circuit for preventing a voltage. The FET transistor T1, the coil L1, the diode D1, and the capacitor C3 are FE
The T-transistor T1 has a configuration equivalent to a step-down converter circuit that averages a pulse-like current obtained by performing ON / OFF of a current based on a signal from the drive circuit 20 to obtain a DC current. .

The resistors R4 and R5 are for measuring the output voltage based on the voltage applied to both ends of the resistor R5. The resistor R6 is connected to the full-wave rectifier circuit 1.
9 is a very small resistor for measuring a current value flowing into the voltage adjustment circuit.

The circuit board 17 includes the FET
A controller 18 for controlling a drive circuit 20 for driving the transistor T1 is provided. Inside the charge controller 18, an I / O unit for outputting a predetermined signal pulse to the drive circuit 20 and the resistor R2 , R5, R
A / D converting and detecting the voltage applied to both ends of the A / D 6
Conversion section and internal ROM storing control programs and the like
And a control unit for controlling each of these units is provided. A signal to the drive circuit 20 is controlled based on each of these voltage values to control the ON / OFF operation of the FET transistor T1. I have.

The operation of the voltage adjusting circuit will be described. First, the DC current output as the current I0 from the full-wave rectifier circuit 19 is converted into a pulsed current by the ON / OFF operation of the FET transistor T1. The amount of current is limited, and this pulsed current is
The voltage is averaged by a capacitor C3, converted to a predetermined voltage, and output. By controlling the ON / OFF ratio of the FET transistor T1, the controller 18 appropriately adjusts the voltage, It can be fixed.

The supply terminal 6 and the connector 15 used in the present embodiment are configured as shown in FIG. 3 (a). These three electrode leads are led out, and these electrode leads are connected to respective parts as shown in FIG.

The supply terminal section 6 is formed in a cylindrical shape,
As shown in FIG. 3, a cylindrical central electrode 22 is provided substantially at the center of the inside of a cylindrical case 21, and a side electrode 24 and the side connector 24 are provided around the central electrode 22 when the connection connector 15 is not inserted. Electrode 23 that contacts and conducts with electrode 24
Are provided, and are connected to the respective electrode leads A to C as shown in FIG.

The connection connector 15 has a predetermined cylindrical fitting portion 25 at the distal end thereof, which can be inserted into the internal space of the cylindrical case 21, and has an inner surface and an outer peripheral surface. , An internal electrode 27 and an external electrode 26 are provided, and these electrodes are connected to the power supply cable 16.

Based on FIGS. 3A and 3B,
The operation of these supply terminal portions 6 will be described. The connection connector 15 is not inserted into the cylindrical case 21.
In the situation shown in FIG. 3A, the side electrode 24 and the electrode 23 come into contact with each other to conduct, and the electrode lead B and the electrode lead C
Are connected to each other, and the battery 10 shown in FIG. 4 is generated and supplied with power of a predetermined voltage.

Next, when the connector 15 is inserted into the supply terminal 6, the fitting portion 25 of the connector 15 is inserted.
As a result, the side electrode 24 is pushed and bent, the conduction with the electrode 23 is released and charging is stopped, and the side electrode 24 and the external electrode 26 come into contact with each other to conduct, and the central electrode 22 And the internal electrode 27 are brought into contact with each other to conduct, and switching is performed so that power is supplied to the external device via the power supply cable 16.

With this configuration, the charging and the power supply to the external device are automatically switched, so that the charging and the power supply to the external device are not performed simultaneously, and the rotational load of the generator motor is significantly increased. Can be prevented.

Although the embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to these embodiments, and changes and additions may be made without departing from the spirit of the present invention. Needless to say, this is included in the present invention.

[0031]

The present invention has the following effects.

(A) According to the first aspect of the invention, by connecting an external device such as a portable device, the power supply switching means automatically supplies the generated power to only the external device. The switching is performed automatically without increasing the rotational load of the generator motor, and there is no need to switch at any time, which is convenient.

(B) According to the second aspect of the invention, the power supply switching means can be provided with a simple configuration, and the power supply can be reliably switched with a simple configuration.

[0034]

[Brief description of the drawings]

FIG. 1 is a top view showing manual power generation in an embodiment of the present invention.

FIG. 2 is a rear view showing manual power generation in the embodiment of the present invention.

FIGS. 3A and 3B are enlarged cross-sectional views showing a supply unit used in a manual generator and a connection state thereof in an embodiment of the present invention;

FIG. 4 is a block diagram showing a circuit configuration of manual power generation in the embodiment of the present invention.

[Explanation of symbols]

 1 Manual Generator (Main Body) 2 Upper Case 3 Lower Case 4 Rotary Lever 5 Rotary Knob 6 Supply Terminal (Supply) 7 Battery Case 8 Electrode Plate 9 Bolt 10 Secondary Battery (Nickel / Cadmiumium Battery) 11 Rotating Gear A 12 Rotating gear B 12 'Rotating gear C 13 Pinion gear 14 Generator motor 15 Connector 16 Power supply cable 17 Circuit board 18 Controller 19 Full-wave rectifier circuit 20 Drive circuit 21 Cylindrical case 22 Center electrode 23 Electrode 24 Side electrode 25 Fitting part 26 External electrode 27 Internal electrode

Claims (2)

[Claims] 1. A manual generator having at least one generator motor that is manually rotated to generate electric power, and a voltage regulator that rectifies an output current from the generator motor to a predetermined voltage. A supply unit for supplying a current output from the external device to an external device, and a storage unit for storing a rechargeable secondary battery, wherein the external device is connected to the external device when the external device is connected to the supply unit. A manual generator, comprising: power supply switching means for supplying power and automatically switching power supply so as to charge a secondary battery when an external device is not connected. 2. The power supply switching unit according to claim 1, wherein the power supply switching unit is realized by a terminal configuration in which a power supply circuit is automatically switched when a connection terminal to an external device is attached to the supply unit. Manual generator.