Power cell and charger assembly for an electrical tool
AssigneeTechway Industrial Co., Ltd.
InventorChun-Hsiao Lin
Life of this patent
Estimating the term…
Abstract
A power cell and charger assembly for an electrical tool has a power cell with two locking devices and a charger base with a sliding cover. The power cell and the charger base slidably engage each other. By setting the locking devices composed of push buttons and biasing members, the power cell and the charger base can be firmly engaged and conveniently detached. Additionally, the sliding cover protects the electrodes from corroding or becoming dusty when power cell is not attached to the charger base. Therefore, the power cell is conveniently attached to or disengaged from the charger base, and the power cell and charger assembly has long life span when the electrodes are kept clean by the sliding cover.
Claims7
A power cell and charger assembly for an electrical tool, the power cell and charger assembly comprising:
- a power cell (10) having
- two sides, each side having a mounting hole and an inside surface;
- a bottom contact face (12);
- two flanges (12) formed in parallel on the bottom contact face (12) respectively near the two sides;
- two through holes (126) defined in the bottom contact face (12) respectively near and outside the two flanges (12);
- a contact surface (123) formed between the two flanges (122) and having multiple slits defined longitudinally in the contact surface (123);
- multiple elongated electrodes (124) mounted respectively in the slits in the contact surface (123);
- and
- two locking devices (14) mounted respectively in the mounting holes in the two sides of the power cell (10);
- and
- a charger base (20) having
- a top contact face (21) having a mounting hole (224);
- two tracks (22) formed on the contact top face (21) to engage the two flanges (122) on the power cell (10), each track having an lip and a locking cutout (222) defined in the lip;
- an electrode base (24) mounted firmly inside the charger base (20), protruding from the mounting hole (224) in the charger base (20)and having
- a top face;
- and
- multiple elongated electrodes (244) attached to the top face of the electrode base (24);
- a positive stop (26) mounted firmly inside the charger base (20) and protruding from the mounting hole (224) in the charger base (20);
- and
- a sliding cover (28) mounted slidably on the two tracks (22) over the elongated electrodes (244) on the charger base (20) and having multiple springs (288) mounted between the sliding cover (28) and the positive stop (26).
The power cell and charger assembly as claimed in claim. 1, wherein the positive stop (26) is attached to the electrode base (24) and has
- a base (242) mounted inside the charger base (20) and attached to the electrode base (24);
- and
- a vertical stop (266) integrally formed with and extending perpendicular from the base (242) and protruding through the mounting hole (224) in the top contact face (21).
Dependencies are inferred from the claim text.