Electric tool grinding machine and casing thereof
AssigneeX'pole Precision Tools Inc.
InventorBach Pangho Chen
Life of this patent
Estimating the term…
Abstract
An electric tool grinding machine includes an electric motor, an airflow generating member, and a casing. The casing includes a hollow shell, a motor housing located in the hollow shell, two partitioning plates located between a side wall of the motor housing and the hollow shell, at least one air outlet facing the airflow generating member, a first air inlet formed on the hollow shell, and at least one second air inlet formed on the hollow shell and spaced apart from the first air inlet. When the airflow generating member is activated, the first air inlet generates a pressure difference in the hollow shell near an air inlet portion of the motor housing to cause air to be drawn into the second air inlet.
Claims15
An electric tool grinding machine, comprising:
- an electric motor;
- an airflow generating member, rotating when the electric motor being activated;
- and
- a casing, comprising a hollow shell, a motor housing located in the hollow shell and provided for disposing the electric motor, two partitioning plates located between a side wall of the motor housing and the hollow shell, at least one air outlet facing the airflow generating member, at least one first air inlet formed on the hollow shell, and at least one second air inlet formed on the hollow shell and spaced apart from the first air inlet, wherein the two partitioning plates define a connecting line therebetween, and the connecting line divides the motor housing into an air inlet portion and an air outlet portion communicating with the air inlet portion, the at least one air outlet is disposed between the air outlet portion and the hollow shell, the at least one first air inlet faces the air inlet portion of the motor housing, when the airflow generating member is activated, a pressure difference is generated by the intake air of the at least one first air inlet between the hollow shell and the air inlet portion of the motor housing, and air is drawn into the second air inlet.
A casing of an electric tool grinding machine, comprising:
- a hollow shell;
- a motor housing, located in the hollow shell;
- two partitioning plates, located between a side wall of the motor housing and the hollow shell, the two partitioning plates located on two opposite sides of the motor housing;
- at least one air outlet, formed on the hollow shell or an outer edge of the motor housing;
- at least one first air inlet, formed on the hollow shell, the at least one first air inlet and the at least one air outlet respectively located on two sides of one of the two partitioning plates, the at least one first air inlet facing the motor housing and adjacent to one of the two partitioning plates;
- and
- at least one second air inlet, formed on the hollow shell and located on one side of one of the two partitioning plates where the first air inlet is located, and wherein a distance between the second air inlet and the air outlet is greater than a distance between the first air inlet and the air outlet.
Dependencies are inferred from the claim text.