Electric tool grinding machine
AssigneeX'pole Precision Tools Inc.
InventorBach Pangho Chen
Life of this patent
Estimating the term…
Abstract
An electric tool grinding machine has an electric motor, a grip body, a cover connected to the body, an eccentric block in the cover and driven by the motor, and an airflow generating member attaching on the block. The body has at least one air hole having a first distance relative to an axis of the motor, the cover doesn't have a through hole, the airflow generating member has a bottom plate and a plurality of fan blades, a second distance is between a top edge of the blade and the body, a third distance is between an outer edge of the blade and the cover, the second distance is at least 50% of a longitudinal length of the blade, the third distance is at least 50% of a radial length of the blade, and an outer diameter of the airflow generating member is greater than the first distance.
Claims13
An electric tool grinding machine, comprising an electric motor, a grip body provided for disposing the electric motor, a cover connected to the grip body, an eccentric block located in the cover and driven by the electric motor, and an airflow generating member attached on the eccentric block, the grip body comprising at least one air intake hole and a channel between the grip body and the electric motor, and the cover comprising a release port facing a grinding disc, wherein the electric tool grinding machine is characterized in that:
- the grip body comprises at least one air hole, the at least one air hole communicates the grip body and the cover, a first distance is defined between the at least one air hole and an axis of the electric motor, the cover is devoid of a through hole, and the airflow generating member comprises a bottom plate and a plurality of fan blades arranged at intervals in a circle on a side of the bottom plate, and wherein a second distance is defined between a top edge of each of the plurality of fan blades facing the electric motor and the grip body, and a third distance is defined between an outer edge of each of the plurality of fan blades and the cover, the second distance is at least 50% of a longitudinal length of each of the plurality of fan blades, the third distance is at least 50% of a radial length of each of the plurality of fan blades, and wherein an outer diameter of the airflow generating member is greater than the first distance, wherein the airflow generating member is configured to, when rotates, generate a heat dissipation airflow in the electric tool grinding machine, wherein the heat dissipation airflow flows from the at least one air intake hole and passes through the channel to dissipate heat of the electric motor, and passes through the at least one air hole and the airflow generating member sequentially, and then the heat dissipation airflow is discharged from the release port of the cover.
Dependencies are inferred from the claim text.