Gree Electric Appliances, Inc. of Zhuhai

Shenzhen Woer Heat-Shrinkable Material Co., Ltd

Shenzhen Woer Special Wire & Cable Co., Ltd

Changzhou Woer Heat-Shrinkable Material Co., Ltd

Ltk Electric Wire (Huizhou) Ltd

Huizhou Ltk Electronic Cable Ltd

Weiguo Li

Yihe Zhang

Shiqiang Zhang

Kai Yu

Jianguo Xiong

Wenjie Dai

Heping Zhou

Jiawei Wang

Zengguo Zhang

Benyong Bao

Shufeng Kang

A variable refrigerant volume system includes: a compressor; a four-way valve; an indoor unit; a liquid tube, the first end thereof being connected to the indoor unit, the second end thereof being connected to the third valve port of the four-way valve, and a condenser being provided on the liquid tube; a low pressure air pipe, the first end thereof being connected to the indoor unit, and the second end thereof being connected to the fourth valve port of the four-way valve; a refrigerant adjustment tank, the first port thereof being connected to the liquid tube, the second port thereof being connected to the low pressure air pipe, and the third port thereof optionally communicating with the liquid tube or the low pressure air pipe.

Variable refrigerant volume system and control method thereof

Disclosed is a drive wheel set, comprising a common shaft and at least two external rotor motors installed on the common shaft. External rotors of the external rotor motors form drive wheels of the drive wheel set. Also disclosed are a vertical-type wire storage frame, a swing-type wire storage frame, a guide wheel frame, a traction mechanism and a multi-path conveying mechanism using the drive wheel set. The drive wheel set is small in size, occupies less space, and is suitable for a situation where a plurality of motors need to be driven but sufficient space is lacking.

Drive wheel set, wire storage frame, guide wheel frame, traction mechanism and conveying mechanism

Growing community of inventors

Guangdong, China

Weiguo Li