Power tools with integrated circuit boards
AssigneeTti (Macao Commercial Offshore) Limited
InventorsDenis Gaston Fauteux, Hei Man Lee, Yong Min Li, Zhao Jun Shi, Yi Jia Chang, Li Hua Xie
Life of this patent
Estimating the term…
Abstract
A power tool which contains a casing, a brushless motor (22) mounted inside the casing, a user actuated switch (38) mounted on the casing, and a circuit board (32) mounted inside the casing. The brushless motor (22) is adapted to drive one or more movable parts in the power tool. The circuit board (32) is mechanically connected to the brushless motor (22) and the switch (38) at the same time. As only a single, integrated circuit board (32) is configured in the power tool, the manufacturing cost is reduced and greater reliance and electrical safety can be achieved.
Claims27
A power tool, the power tool comprising:
- a casing;
- a drive motor mounted inside the casing, the drive motor adapted to drive one or more movable parts in the power tool, wherein the drive motor includes a drive shaft defining an axial direction;
- a gear mechanism mounted inside the casing and located in front of the drive motor in the axial direction, wherein the gear mechanism is configured to convert an output from the drive motor to a different rating;
- a user actuated switch mounted on the casing;
- and
- a circuit board mounted inside the casing, the circuit board being integrated with a motor controller for the drive motor and a microcontroller for controlling operation of the power tool, wherein the circuit board is mechanically connected to the drive motor and the user actuated switch at the same time, and wherein the circuit board is located between the drive motor and the gear mechanism along the axial direction;
- wherein
- the casing comprises a main portion extending substantially along the axial direction and a handle portion connected and extending from the main portion along a direction not parallel with the axial direction, and
- the circuit board comprises a first portion and a second portion which are accommodated in the main portion and the handle portion respectively.
A power tool, the power tool comprising:
- a casing;
- a drive motor mounted inside the casing, the drive motor adapted to drive one or more movable parts in the power tool, wherein the drive motor includes a drive shaft defining an axial direction;
- a gear mechanism mounted inside the casing and located in front of the drive motor in the axial direction, wherein the gear mechanism is configured to convert an output from the drive motor to a different rating;
- a user actuated switch mounted on the casing;
- and
- a circuit board mounted inside the casing, the circuit board being integrated with a motor controller for the drive motor and a microcontroller for controlling operation of the power tool, wherein the circuit board is mechanically connected to the drive motor and the user actuated switch at the same time, and wherein the circuit board is located between the drive motor and the gear mechanism along the axial direction;
- wherein a Hall sensor, a power control device, and a logic controller are integrated into the circuit board.
A power tool, the power tool comprising:
- a casing;
- a drive motor mounted inside the casing, the drive motor adapted to drive one or more movable parts in the power tool, wherein the drive motor includes a drive shaft defining an axial direction;
- a gear mechanism mounted inside the casing and located in front of the drive motor in the axial direction, wherein the gear mechanism is configured to convert an output from the drive motor to a different rating;
- a user actuated switch mounted on the casing;
- and
- a circuit board mounted inside the casing, the circuit board being the only circuit board in the power tool, wherein the circuit board is located between the drive motor and the gear mechanism along the axial direction.
Dependencies are inferred from the claim text.