Power tools with built-in circuitry

Abstract

An electric tool with a built-in circuit structure includes a housing, a battery cell for providing electrical energy, a motor cell for converting electrical energy into kinetic energy, a power output unit mounted in the housing, a main control board unit disposed within the housing and electrically connected to the motor cell, and a charging board unit disposed within the housing and contacting and connected to the main control board unit. The power output unit includes a transmission component capable of being driven by the motor cell and outputting kinetic energy. The charging board unit forms an angle with the main control board unit and is electrically connected to both the battery cell and the main control board unit. This L-shaped configuration of the main control board unit and charging board unit provides a larger heat dissipation area and improves space utilization, thereby reducing the overall length and volume.

Claims

1. An electric tool with a built-in circuit structure, comprising: a housing; a battery unit disposed within the housing for providing electrical energy; a motor unit disposed within the housing for converting electrical energy into kinetic energy; a power output unit mounted on the housing, including a transmission component capable of being driven by the motor unit and outputting kinetic energy; a main control board unit disposed within the housing, electrically connected to the motor unit, and for transmitting electrical signals and electrical energy; and a charging board unit disposed within the housing, contacting and connected to the main control board unit, and forming an angle with the main control board unit, the charging board unit also being electrically connected to the battery unit and the main control board unit, and for transmitting electrical signals and electrical energy.

2. A power tool with a built-in circuitry as described in claim 1, wherein, The included angle is between 85 and 95 degrees.

3. A power tool with a built-in circuitry as described in claim 1, wherein, The housing defines a first chamber extending along a first axis and a second chamber adjacent to the first chamber, wherein the motor unit is disposed in the first chamber and the battery unit, the main control board unit and the charging board unit are disposed in the second chamber.

4. A power tool with a built-in circuitry as described in claim 3, wherein, The second chamber extends along the direction of the first axis.

5. A power tool with a built-in circuitry as described in claim 3, wherein, The second chamber extends along a second axis, and the first axis forms an obtuse angle with the second axis.

6. A power tool with a built-in circuitry as described in claim 1, wherein, The main control board unit includes a main control board having two opposite main control board surfaces and a socket extending from one of the main control board surfaces toward the other main control board surface. The charging board unit includes a charging board and a plug connected to the charging board and detachable from the socket. The charging board has two opposite charging board surfaces, with one of the charging board surfaces and one of the main control board surfaces forming an angle.

7. A power tool with a built-in circuitry as described in claim 6, wherein, The charging board and the main control board define an open space, and the battery unit is disposed in the open space, adjacent to one of the charging board surfaces and one of the main control board surfaces.

8. A power tool with a built-in circuitry as described in claim 6, wherein, The charging board unit includes a connection port that connects to the charging board and defines an interface. The connection port is used to input external electrical energy so that the battery unit can store electrical energy.

9. A power tool with a built-in circuitry as described in claim 6, wherein, Each of the main control boards has two short sides spaced apart and two long sides spaced apart, and the charging board is adjacent to one of the short sides of the main control board.

10. A power tool with a built-in circuitry as described in claim 6, wherein, Each of the main control boards has two short sides spaced apart and two long sides spaced apart, and the charging board is adjacent to one of the long sides of the main control board.

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