Abstract: An electric ratchet wrench comprises a wrench main casing, a motor, a ratchet head casing and a motor fixing member. The wrench main casing comprises two main casing locking parts, the two main casing locking parts are symmetrically arranged at one end of the wrench main casing, the motor is accommodated in the wrench main casing, the ratchet head casing comprises a plug-connected part, and the plug-connected part is inserted into the aforementioned end of the wrench main casing. The motor fixing member is accommodated in the wrench main casing and located between the plug-connected part and the motor, the motor fixing member is used to fix the motor, and the motor fixing member is clamped and positionally limited between one end edge of the plug-connected part and the main casing locking parts. Thereby, effects of reducing structural complexity and improving ease of assembly can be achieved.

Abstract: The invention relates to a power tool with an electrically controlled commutating assembly comprising: an electrically controlled commutating assembly and a control unit; the electrically controlled commutating assembly has an electromagnetic unit; the electromagnetic unit is capable of performing a change in displacement due to electromagnetic action; the control unit has a control member, the control member is capable of changing a working direction of a power tool, and displacement of the electromagnetic unit is capable of actuating the control member of the control unit to make the power tool switch the working direction.

Abstract: A power tool has a housing and a control assembly. The control assembly is disposed within the housing and has a switch, and a controlling circuit board. The switch has a length and a width. The length is defined along the housing. The width is defined along a radial direction of the housing and is smaller than the length of the switch to form two convection passages between the switch and the housing. The two convection passages are formed between the switch and the housing to facilitate ventilation inside the power tool and promote heat-dissipation efficiency of the power tool.

Abstract: The invention relates to a power tool with an electrically controlled commutating assembly comprising: an electrically controlled commutating assembly and a control unit; the electrically controlled commutating assembly has an electromagnetic unit; the electromagnetic unit is capable of performing a change in displacement due to electromagnetic action; the control unit has a control member, the control member is capable of changing a working direction of a power tool, and displacement of the electromagnetic unit is capable of actuating the control member of the control unit to make the power tool switch the working direction.