Power tool
According to an aspect of the present invention, there is provided a power tool including: a housing; a fan rotatably supported by the housing so as to generate an air flow; a wall portion supported by the housing; and a heat generation portion supported by the wall portion, wherein the wall portion has an exposing hole to expose a part of the heat generation portion so that the exposed part of the heat generation portion is positioned within the air flow.
1. A power tool comprising:
a motor;
a housing accommodating the motor;
a fan rotatably accommodated in a first space of the housing to generate an air flow;
a wall portion supported by the housing;
a first ratchet accommodated in the housing and supported by the wall portion, the first ratchet accommodated in a second space of the housing;
a spindle;
a gear step portion supported by the spindle and configured to abut against the first ratchet;
a chuck supported by the spindle; and
a metal heat dissipation portion connected to the first ratchet, the metal heat dissipation portion extending toward an inside of the air flow,
wherein the wall portion is formed of a resin; and
wherein the first space of the housing communicates with the second space of the housing.
2. The power tool according to claim 1 , wherein the chuck is disposed at a front side of the first ratchet,
the first ratchet is disposed at a front side of the wall portion,
the fan is disposed at a rear side of the wall portion, and
the wall portion has an exposing hole to expose a rear end of the first ratchet.
3. The power tool according to claim 1 , wherein a ball is connected to the spindle, and the heat dissipation portion is configured to guide a change plate connectable to the ball.