Panasonic Corporation

Panasonic Ecology Systems Guangdong Co., Ltd.

Jingtao Yang

Shouyong Gao

Zewei Rao

Jianrong Zhu

Zhenjian Yang

Min Long

Yannong Wu

Qianhao Tan

Pingting Yang

Qingquan Liu

Guangzhu Xuan

A ventilating fan includes a sirocco fan disposed in a box-shaped body and an adapter connected to an air outlet of the sirocco fan. The sirocco fan is composed of two opposite scroll plates with scroll shapes and a casing plate sandwiched between the two scroll plates. An overall air inlet of the sirocco fan is disposed on the first scroll plate and a central line of the air outlet of the adapter is offset towards the second scroll plate. The present invention is advantageous in that no turbulence is generated at the adapter and the wind amount of the ventilating fan is thus ensured and noise is reduced. Therefore, the present invention can provide a small air blowing device with high efficiency and improve stability of performance of the product.

Ventilating fan

An air exchange fan, includes: a frame provided with an opening, a helicoid housing with an air suction inlet disposed in the frame, an air blower disposed in the helicoid housing, and, a circuit board box mounted at the air suction inlet side, wherein a silencing plate is mounted above the outer peripheral of the air suction inlet, the silencing plate has a streamlining structure formed by outwardly expanding from the air suction inlet in an axial direction of a rotation axis of the air blower, the rotation axis of which serving as the center, within a range that is from a tongue of the helicoid housing to a location with a 90 degrees angled from the tongue in a direction opposing to the rotation direction of the air blower, and the silencing plate has a curved chamfered shape which mates with the peripheral shape of the air suction inlet.

Air exchange fan and circuit board box therefor

A ventilation device comprises: a body, a fan disposed In the body, and an adapter connected with an air outlet of the body. Two or more pipe coupling parts are disposed in sequence from a side of an air Inlet of the adapter to a side of an air outlet of the adapter, and each pipe coupling part is provided with a protruding circular ring with a diameter larger than that of the respective pipe coupling part at a root thereof. An air guide structure Is disposed in the adapter, a pipe is fitted over the pipe coupling part and Is abutted against the protruding circular ring located at the root to be fixed, and the air guide structure Is engaged to an inside of the protruding circular ring of the adapter.

Ventilation device

A ventilator () includes a frame (), a volute () mounted in the frame (), a motor bracket () mounted in the opening of the volute () and a motor () fitted in the motor bracket (). The frame () is made of metal material. The character of the ventilator is in that the motor bracket () is made of metal material. Since the metal motor bracket has favorable performances of heat radiation and rigidity, the ventilator () has better security and stability.

Ventilator

Growing community of inventors

Guangdong, China

Jingtao Yang