Qkm Technology (dong Guan) Co., Ltd

Gree Electric Appliances, Inc. of Zhuhai

Gree Electric Appliances (wuhan) Co., Ltd

Hui Du

Bin Wang

Mingzhu Dong

Jianming Tan

Yu Lei

Lihui Chen

Rongkui Zheng

Jiang Liu

Huoxi Zhou

Yuhai Su

Weixue Lin

Chi Sha

Yong Deng

Zhongcai Guo

Xuelin Tian

Yaobiao Yue

Cheng Wang

Wenqi Kuang

Zebo Chen

Xiaolong Chi

Zhiwen Feng

Biao Jiang

Jiangcheng Zhu

Zhengxing Shi

Boqiang Chen

Huiyuan Feng

Yingsong Zhang

Xinjian Lei

Chenglong Zhao

Bo Cai

Yaqian Pan

An integrated radiator having a temperature gradient is disposed between a high-temperature device and a low-temperature device. The integrated radiator includes a first heat dissipation unit and a second heat dissipation unit which are integrally fixed. The first heat dissipation unit is configured to maintain the high-temperature device within a first temperature range, and the second heat dissipation unit is configured to maintain the low-temperature device within a second temperature range. A thermal conductive path of the first heat dissipation unit is isolated from a thermal conductive path of the second heat dissipation unit, and the first heat dissipation unit is physically connected to but thermally separated from the second heat dissipation unit.

Integrated radiator having temperature gradient

A distributed multi-node control system () and method, relating to the field of control technology. The distributed multi-node control system () comprises: a first control node (), a second control node (), a plurality of servo nodes () and a plurality of execution devices (), the first control node () and the second control node () being respectively communicationally connected to the plurality of servo nodes (), the servo nodes () being electrically connected to the execution devices () and configured to control operating states of the corresponding execution devices (), the first control node () being configured to control an operating state of at least one first servo node () among the plurality of servo nodes (), the second control node () being configured to control an operating state of at least one second servo node () among the plurality of servo nodes ().

Distributed multi-node control system and method, and control node

The present application provides an air duct machine with switchable air-out directions and a control method thereof, and an air-conditioning apparatus. The air duct machine with switchable air-out directions comprises: a housing, a first fan (), a second fan () and a control mechanism, wherein the first fan () and the second fan () are both mounted in the housing, the housing has a first vent () at a side corresponding to the first fan () and a second vent () at a side corresponding to the second fan (), and a communicating air channel is formed between the first vent () and the second vent (); the control mechanism is used for linkage control of the rotation of two fans, and when one fan serves as an air supply fan, the other fan is controlled as a regulating fan to rotate in a direction opposite to a direction in which air is supplied to a corresponding vent, and reverse rotation of the regulating fan reduces obstruction to return air, optimizes a flow field of return air, enlarges the area of return air, increases the air output amount, and effectively lowers the noise.

Air duct machine with switchable air-out directions and control method thereof and air-conditioning apparatus

The present invention provides a method for detecting motor initial phase and phase sequence and a system for controlling a permanent-magnet synchronous motor. The method is applied to the system and comprises sequentially acquiring, through an encoder, first displacement data which register the encoder's reading when a rotor spins to a Q-axis, second displacement data which register the encoder's reading when the rotor spins from the Q-axis to a D-axis, third displacement data which register the encoder's reading when the rotor spins from the D-axis to a negative Q-axis and fourth displacement data which register the encoder's reading when the rotor spins from the negative Q-axis to the D-axis; obtaining an initial phase of the motor to be detected according to the second displacement data, the fourth displacement data and the encoder's CPR; and determining the phase sequence of the motor based on the first displacement data, the second displacement data and the encoder's CPR. That is to say, the method can not only automatically detect the initial phase of the rotor, but also the motor wiring phase sequence, and overcome the influence of friction force to improve the initial phase detection precision.

Method for detecting motor initial phase and phase sequence and system for controlling permanent-magnet synchronous motor

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Guangdong, China

Hui Du