JP2003204091A - Power generating unit for portable telephone - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a portable telephone is driven by very small electrical energy of the order of milliamperes because an electrical energy source which drives the portable telephone and is carried by a user is located very close to a human body even through it is brought into close contact with it through the intermediary of his clothes, on the other hand, the portable telephone must keep its standby function ready continuously so as to receive communications from outside and also must keep consuming electrical energy continuously, and electrical energy supplied to the portable telephone must avoid being interrupted, so that a rechargeable cell is used as a power supply for the portable telephone, the rechargeable cell requires a power as a charging source, and therefore the portable telephone almost can not be used in an undeveloped region where an electrical power infrastructure is not enough. <P>SOLUTION: This invention designed for the portable telephone takes advantage of a user's hands which open or fold a hinged twice-folded portable telephone to drive a piezoelectric power generating unit for ensuring a power supply for the potable telephone. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to power generation for mobile phones.

[0002]

2. Description of the Related Art Electric energy for driving a mobile phone is
Despite the presence of clothes, it is carried close to the human body, so it is driven by extremely weak electrical energy in milliamperes, while it has a standby function for receiving external communications. Since it has to work all the time, it has to constantly consume a certain amount of electric energy, and it has a fate that cannot interrupt electric energy. It used a rechargeable battery.

[0003]

SUMMARY OF THE INVENTION Since charging a rechargeable battery requires electric power as a charging source,
It was almost impossible to use a mobile phone in an area where the electric infrastructure was undeveloped, because there had to be a well-equipped environment.

The present invention seeks to provide a means for enabling the use of mobile phones in areas where electrical infrastructure is underdeveloped.

[0005]

In order to achieve the above object, in the present invention, the piezoelectric generator is driven by utilizing the force of the hand of the person who folds and folds a hinged two-fold mobile phone.
It aims to secure the power source for mobile phones.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the invention will be described with reference to the drawings. FIG. 1 is a schematic view schematically showing the principle of the present invention, in which 1 is a lid portion of a mobile phone, 2 is a base portion of the mobile phone,
3 is a hinge part and 4 is a hinge shaft.

FIG. 2 is a schematic view showing the basic power generation unit of the present invention in a simplified manner. 5 is a piezoelectric element array, 6 is an element array support base,
Reference numeral 7 is an eccentric camshaft.

FIG. 3 is a schematic diagram showing the system of the power generation mechanism of the present invention, in which 8 is a hinge shaft, 9 is a crown gear that transmits only the rotational torque of the hinge shaft 8 in a fixed direction, 10 is a pinion gear, and 11 is a pinion gear. Is a spur gear fixed coaxially with the pinion gear 10, 12 is a relay shaft, 13
Is a relay pinion gear, 14 is a relay spur gear, 15 is a mainspring shaft, 16 is a mainspring winding gear, 17 is a mainspring, 18 is a rotary housing for fixing the mainspring 17, 17 is a spur gear fixed to the upper surface of the rotary housing 18, 20 Is an output relay shaft, 21 is an output relay pinion gear, 22 is an output relay spur gear, 23 is an output shaft, 24 is an output pinion gear, 25 is an output crown gear, 26 is a flywheel, 27 is an eccentric cam shaft,
28 is a pinion gear fixed to the eccentric cam shaft,
Reference numeral 29 is a piezoelectric element array.

[0009]

Since the present invention is constructed as described above, it has the following effects.

When the hinge type mobile phone is opened and closed by the hand, the hinge shaft 4 makes two left and right rotational movements. Therefore, the crown gear 9 provided on the hinge shaft 4 is
Since the rotary motion is transmitted only in the direction and the reverse rotation prevention function is provided, all the transmission mechanisms connected to the downstream side from this rotate only in one direction.

The torque for opening and closing the mobile phone is determined by the hinge shaft 8
Through crown gear 9, pinion gear 10, spur gear 11, relay pinion gear 13, relay spur gear 1
4. The mainspring spring 17 will be wound and squeezed through the mainspring shaft 15 and mainspring winding gear 16. However, even if the opening / closing movement is interrupted, the mainspring spring 17 will not loosen due to reverse rotation, and rotational torque will be stored. Go away.

The rotating torque stored in the mainspring spring 17 works in search of the outlet, and the mainspring spring 17 is operated.
The rotary housing 18 for fixing is rotated, and then the eccentric cam shaft 27 is rotated from the spur gear 19, the output relay pinion gear 21, the output relay spur gear 22, the output pinion gear 24, and the output crown gear via the pinion gear 28, and the piezoelectric element row is formed. The vertical vibration is continuously applied to 29.

At this time, the flywheel 26 provided on the output shaft 23 together with the output pinion gear 24 and the output crown gear 25 has a complementary function of overcoming the uneven resistance of the eccentric cam shaft 27 due to the action of the rotational inertia torque. Play an important role.

With such an eccentric cam shaft 27,
The piezoelectric element array 29 to which the continuous vibration is forcibly applied starts to release the electric energy by its characteristic mechanical deformation and pressurization.

If the hinge shaft 4 is provided with a crown gear having a rotation characteristic opposite to that of the crown gear 9 and a power generation mechanism of the same system is provided downstream of the crown gear 9, it is possible to utilize both the opening and closing torques of the hinge for power generation. Next, the electric energy supply to the hinged mobile phone will be doubled.

[Brief description of drawings]

FIG. 1 is a schematic diagram illustrating the principle of the present invention.

FIG. 2 is a schematic diagram showing a basic power generation unit of the present invention.

FIG. 3 is a schematic diagram of the power generation mechanism system of the present invention.

[Explanation of symbols]

1 lid 2 base 3 hinges 4 hinge shaft 5,29 Piezoelectric element row 6 element row support 7,27 Eccentric camshaft 8 hinge shaft 9 Crown gear 10, 28 pinion gear 11, 19 spur gear 12 Relay shaft 13 Relay pinion gear 14 Relay spur gear 15 Mainspring shaft 16 Mainspring winding gear 17 Mainspring 18 rotating housing 20 output relay shaft 21 Output relay pinion gear 22 Output relay spur gear 23 Output shaft 24 output pinion gear 25 output crown gear 26 flywheel

Claims (2)

[Claims] 1. Utilizing the force of a hand to open and fold a hinge-type two-fold mobile phone, the electric energy obtained by vibrating the piezoelectric element array of claim 3 of Japanese Patent Application No. 2001-154643 to generate electricity is driven by a telephone. Mobile phone power generator used as a power source for mobile phones. 2. A mobile phone power generator in which the opening and closing torque of a hinged mobile phone is stored in a mainspring to vibrate a piezoelectric element array as a continuous vibration source.