High torque electromotive tool

• US 20050194166A1
• Filed: 05/03/2005
• Published: 09/08/2005
• Est. Priority Date: 06/10/2003
• Status: Abandoned Application

• Current Assignee: Goodti Industrial Company Limited
• Original Assignee: Goodti Industrial Company Limited
• Inventors: Chu, Wu-Lung
• Application Number:
  US11/120,357
• Publication Number:
  US 20050194166A1
• Time in Patent Office: Days
• US Class Current: 173/217
• CPC Class Codes: B25B 21/00 Portable power-driven screw or nut setting or loosening tools; details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F5/00; for mounting or dismounting wheels B60B29/006; Attachments for drilling apparatus serving the same purpose machines B23P19/06
• CPC Class Codes: B25B 23/18 Devices for illuminating the head of the screw or the nut
• CPC Class Codes: B25F 5/021 with guiding devices guiding devices for hand tools on stands or supports B25H1/0078

Abstract

An electromotive tool includes a housing, a motor, an electric control device, and a circuit device connected to the electric control device in a parallel manner. The electric control device includes a battery set. The circuit device includes an electric double layer capacitor connected to the battery set of the electric control device in a parallel manner. Thus, the electric double layer capacitor supplies a relatively higher electric current to the motor so that the output shaft of the motor produces a relatively higher torque instantaneously.

Claims

1. An electromotive tool, comprising:

a housing;

a motor mounted in the housing and having an output shaft protruded outward from the housing;

an electric control device mounted in the housing to supply an electric power to the motor;

a circuit device mounted in the housing to supply an electric power to the motor and connected to the electric control device in a parallel manner;

wherein

the electric control device includes a battery set mounted in the housing and connected to the motor to supply an electric power to the motor;

the circuit device includes an electric double layer capacitor mounted in the housing and connected to the battery set of the electric control device in a parallel manner.

2. The electromotive tool in accordance with claim 1, wherein the electric control device further includes a push button protruded outward from the housing and connected to the battery set to control operation of the battery set.

3. The electromotive tool in accordance with claim 1, wherein the electric double layer capacitor is connected to the motor to supply an electric power to the motor.

4. The electromotive tool in accordance with claim 1, wherein when the electric double layer capacitor is charged or discharged, the electric double layer capacitor has a physical reaction without accompanying a chemical reaction, so that the electric double layer capacitor has an instantaneously amplified feature to produce a relatively higher electric current during the charging and discharging process.

5. The electromotive tool in accordance with claim 1, wherein the electric double layer capacitor supplies a relatively higher electric current to the motor so that the output shaft of the motor produces a relatively higher torque instantaneously.

6. The electromotive tool in accordance with claim 1, wherein the circuit device further includes a charging plug connect to the electric double layer capacitor and the battery set for charging the electric double layer capacitor and the battery set.

7. The electromotive tool in accordance with claim 6, wherein the charging plug is mounted on a bottom of the housing and exposed to an outside of the housing.

8. The electromotive tool in accordance with claim 6, wherein the circuit device further includes a charging indicator connected to the charging plug to provide an indication function during the charging process of the electric double layer capacitor and the battery set.

9. The electromotive tool in accordance with claim 8, wherein the charging indicator is mounted on and protruded outward from a lower portion of the housing.

10. The electromotive tool in accordance with claim 1, wherein the circuit device further includes an illuminating light mounted on an upper portion of the housing and located adjacent to the output shaft of the motor.

11. The electromotive tool in accordance with claim 10, wherein the illuminating light is parallel with the output shaft of the motor to provide an illuminating effect to the output shaft of the motor.

12. The electromotive tool in accordance with claim 10, wherein the circuit device further includes a control switch mounted on the bottom of the housing and connected to the illuminating light to control operation of the illuminating light.

13. The electromotive tool in accordance with claim 1, wherein the illuminating light is a light emitting diode.

14. The electromotive tool in accordance with claim 1, wherein the electric double layer capacitor has an instantaneously amplified feature to produce a relatively higher electric current so that the electric double layer capacitor reaches a saturated state during a shorter period of time before the battery set reaches a saturated state.

15. The electromotive tool in accordance with claim 1, wherein the electric double layer capacitor can supply an electric power to the motor instantaneously.

16. The electromotive tool in accordance with claim 1, wherein the electric double layer capacitor supplies a relatively higher electric current to the motor so that the output shaft of the motor produces a relatively higher torque instantaneously.