PORTABLE ELECTRIC GENERATOR

• US 20110113910A1
• Filed: 01/24/2007
• Published: 05/19/2011
• Est. Priority Date: 03/06/2006
• Status: Abandoned Application

• Current Assignee: Seoby Lectronics Co., Ltd
• Original Assignee: Seoby Lectronics Co., Ltd
• Inventors: Lee, Sung-Sub
• Application Number:
  US12/279,741
• Publication Number:
  US 20110113910A1
• Time in Patent Office: Days
• US Class Current: 74/333
• CPC Class Codes: H02K 7/1853 driven by intermittent forces
• CPC Class Codes: Y10T 74/19242 Combined gear and clutch

Abstract

A portable electric generator that can be applied to a portable electronic device is provided. The portable electric generator includes a case defining a receiving space, a wheel member rotatably coupled to the case, a driving gear coupled to the wheel member or a shaft of the wheel member, a first one-way rotational gear rotating by a torque transmitted from the driving gear, a second one-way rotational gear rotating by the torque transmitted from the driving gear, a direction change gear rotating by a torque from the second one-way rotational gear, a power transmission gear receiving a torque of the first one-way rotational gear and a torque of the direction change gear, and a generator unit for generating electricity by receiving a torque from the power transmission gear.

Claims

1. A portable electric generator comprising;

a case defining a receiving space;

a wheel member rotatably coupled to the case;

a driving gear coupled to the wheel member or a shaft of the wheel member;

a first one-way rotational gear rotating by a torque transmitted from the driving gear;

a second one-way rotational gear rotating by the torque transmitted from the driving gear;

a direction change gear rotating by a torque from the second one-way rotational gear;

a power transmission gear receiving a torque of the first one-way rotational gear and a torque of the direction change gear; and

a generator unit for generating electricity by receiving a torque from the power transmission gear.

2. The portable electric generator of claim 1, further comprising an additional power transmission gear that is coupled to the driving gear coupled to the shaft of the wheel member to transmit a torque to the first and second one-way rotational gears.

3. The portable electric generator of claim 1, wherein the first and second one-way rotational gears are disposed such that a direction of the torque transmitted by the first one-way gear is opposite to a direction of the torque transmitted by the second one-way gear.

4. The portable electric generator of claim 1, further comprising a generator shaft gear that is coupled to the generator unit to receive the torque from the power transmission gear.

5. The portable electric generator of claim 1, wherein each of the first and second one-way rotational gears includes:

an input gear unit receiving a torque from the wheel member;

a rotation limit member fixed on a shaft of the input gear and provided with a plurality of grooves;

a plurality of rolling members disposed in the respective grooves of the rotation limit member; and

an output gear unit enclosing the rotation limit member and the rolling members and provided at an external circumference with gear teeth.

6. The portable electric generator of claim 5, wherein the grooves of the rotation limit member are formed facing an inner circumference of the output gear unit, and a distance between each of the grooves and the inner circumference of the output gear unit is gradually reduced in one direction.

7. The portable electric generator of claim 1, wherein the case is a case of a portable electronic device.

8. The portable electric generator of claim 1, which is disposed in a portable electronic device.

9. The portable electric generator of claim 1, wherein the wheel member partly protrudes out of the case.

10. The portable electric generator of claim 1, wherein the generator unit is connected to a battery storing electric energy generated by the generator unit.

11. The portable electric generator of claim 5, wherein the rolling member is spherical.

12. The portable electric generator of claim 5, wherein the rolling member is cylindrical.

13. A portable electric generator comprising:

a case defining a receiving space;

a first power transmission gear rotatably disposed in the case;

a rotational member coupled to a shaft of the power transmission gear;

a first one-way rotational gear rotating by a torque transmitted from the first power transmission gear;

a second one-way rotational gear rotating by the torque transmitted from the first power transmission gear;

a direction change gear rotating by a torque from the second one-way rotational gear;

a power transmission gear receiving a torque of the first one-way rotational gear and a torque of the direction change gear; and

a generator unit for generating electricity by receiving a torque from the power transmission gear.

14. The portable electric generator of claim 13, wherein the first and second one-way rotational gears are disposed such that a direction of the torque transmitted by the first one-way gear is opposite to a direction of the torque transmitted by the second one-way gear.

15. The portable electric generator of claim 13, wherein the case is a case of a portable electronic device.

16. The portable electric generator of claim 13, which is disposed in a portable electronic device.

17. The portable electric generator of claim 13, wherein the generator unit is connected to a battery storing electric energy generated by the generator unit.