Blowing device
AssigneeNanjing Chervon Industry Co., Ltd.
InventorsHuaping Pan, Rui Zhan
Life of this patent
Estimating the term…
Abstract
A blowing device includes an electric motor including a motor body and a motor shaft; a fan discharging air from an air exhaust vent of a nozzle; and a power supply device. The fan is located between an air inlet of the main housing and the motor body in an axial direction of the motor shaft; a maximum rotational speed of the motor shaft is greater than or equal to 120,000 RPM and less than or equal to 300,000 RPM; a circuit board is located between the air exhaust vent and the motor body in the axial direction of the motor shaft; and when the electric motor is driven at the maximum rotational speed, maximum wind pressure of air discharged from the air exhaust vent is greater than or equal to 12 kPa and less than or equal to 230 kPa.
Claims20
A blowing device configured to discharge air from an air exhaust vent of a nozzle, comprising:
- a main housing formed with a handle for a user to hold and a mounting portion for detachable mounting the nozzle;
- an electric motor at least partially accommodated in the main housing comprising a motor body and a motor shaft, the motor body comprising a stator and a rotor, and the motor shaft being rotatable synchronously with the rotor and having a maximum rotational speed greater than or equal to 120,000 RPM and less than or equal to 300,000 RPM;
- a fan at least partially accommodated in the main housing, located between an air inlet of the main housing and the motor body in an axial direction of the motor shaft, and configured to rotate in response to rotation of the motor shaft to discharge air from the air exhaust vent of the nozzle;
- a power supply device configured to supply electrical energy to the electric motor;
- and
- a circuit board electrically connected to the electric motor and located between the air exhaust vent and the motor body in the axial direction of the motor shaft;
- wherein, when the electric motor is driven at the maximum rotational speed, a maximum wind pressure of air discharged from the air exhaust vent is greater than or equal to 12 kPa and less than or equal to 230 kPa.
A blowing device configured to discharge air from an air exhaust vent of a nozzle, comprising:
- a main housing formed with a handle for a user to hold and a mounting portion for detachably mounting the nozzle;
- an electric motor at least partially accommodated in the main housing, the electric motor comprising a motor body and a motor shaft, the motor body comprising a stator and a rotor, and the motor shaft being rotatable synchronously with the rotor and having a maximum rotational speed greater than 120,000 RPM;
- a circuit board electrically connectable to the electric motor and located between the air exhaust vent and the motor body in the axial direction of the motor shaft;
- a fan at least partially accommodated in the main housing, located between an air inlet of the main housing and the motor body in an axial direction of the motor shaft, and configured to rotate in response to rotation of the motor shaft to discharge air from the air exhaust vent;
- and
- a power supply device comprising a battery pack configured to supply electrical energy to the electric motor.
A blowing device configured to discharge air from an air exhaust vent of a nozzle, comprising:
- a main housing formed with a handle for a user to hold and a mounting portion for detachably mounting the nozzle;
- an electric motor at least partially accommodated in the main housing, the electric motor comprising a motor body and a motor shaft, the motor body comprising a stator and a rotor, and the motor shaft being rotatable synchronously with the rotor and having a maximum rotational speed greater than or equal to 120,000 RPM and less than or equal to 300,000 RPM;
- a fan at least partially accommodated in the main housing, located between an air inlet of the main housing and the motor body in an axial direction of the motor shaft, and configured to rotate in response to rotation of the motor shaft to discharge air from the air exhaust vent of the nozzle;
- a power supply device configured to supply electrical energy to the electric motor;
- and
- a circuit board electrically connected to the electric motor and located between the air exhaust vent and the motor body in the axial direction of the motor shaft;
- wherein, when the motor shaft is driven at the maximum rotational speed, a maximum value of a product of an area of the air exhaust vent and a wind speed of air discharged from the air exhaust vent is greater than or equal to 0.008 m3/s and less than or equal to 0.064 m3/s.
Dependencies are inferred from the claim text.