Huawei Digital Power Technologies Co., Ltd.

Huawei Technologies Co., Limited

Xiong Hu

Peng Wang

Bo Zhou

Huan Wang

Hu Zhong

Xueyu Mei

Guohua Fan

Senlin Ma

Zhengyi Tang

Dingnan Song

Yanzhong Wang

Yongling Wang

Yejian Yao

Xiaofei Pu

Jijun Chen

A motor shaft, a motor, and an electric vehicle. The motor shaft includes a shaft body and an insulation coating. The shaft body includes a first mounting portion and a second mounting portion that are connected by fastening. A positioning step surface is disposed at an end that is of the first mounting portion and that is close to the second mounting portion. The first mounting portion is configured to mount a rotor. The second mounting portion is covered with the insulation coating, and the second mounting portion is configured to mount a bearing. A resistivity of the insulation coating is not less than 10Ω·m. In this way, a possibility that a shaft current is generated when a shaft voltage discharges and breaks down a lubricating oil film in the bearing to form a path can be effectively reduced.

Motor shaft, motor, and electric vehicle

A hot swap component is provided, which includes a movable portion and a fixed portion that may be electrically connected to each other by using electrical connectors. When a circuit breaker works, a pin that is of an electrical connector and that is located on the movable portion is correspondingly connected to a base located on the fixed portion, and the fixed portion and the circuit breaker inside the movable portion are conducted. When the circuit breaker is faulty and needs to be repaired and replaced, the movable portion can be pulled out from the fixed portion, and the circuit breaker is electrically disconnected from the fixed portion. An anti-electric shock protection mechanism of the fixed portion isolates a first base inside the fixed portion, thereby implementing safe hot swap of the circuit breaker.

Hot swap component and circuit breaking apparatus used with circuit breaker

A foldable cabinet framework includes two side frames, a first beam body, and a second beam body, where two opposite ends of each of the first and second beam bodies are respectively connected to the two side frames. The first beam body and the second beam body each include a hinged part, and when the first beam body and the second beam body are in a straight state, the first beam body and the second beam body are supported between the two side frames, so that the two side frames are spaced apart and symmetrically disposed. The first beam body and the second beam body enclose a framework of a three-dimensional structure. The first beam body and the second beam body are folded by using the hinged part; and after the first beam body and the second beam body are folded, the two side frames are superposed with each other.

Foldable cabinet framework and cabinet

The present invention provides an elastic washer structure and a fastener, including: an elastic washer () and one or more tongues (), where the elastic washer () is a sheet object with an inner hole (), one surface of the elastic washer () is a convex surface, the other surface is a concave surface, a tongue () is disposed towards a side of the convex surface on an outer edge of the elastic washer, an angle between the tongue () and a surface () on which the outer edge of the elastic washer is located is a first angle (), and when the convex surface of the elastic washer bears pressure, there is a negative correlation between the first angle () and the pressure borne by the elastic washer.

Elastic washer structure and fastener

Growing community of inventors

Shenzhen, China

Xiong Hu