Huawei Technologies Co., Limited

Shenzhen Chenbei Technology Co., Ltd.

Aerospace Dongfanghong Development Ltd

Yingchun Zhang

Zhiguo Zhang

Haitao Zhen

Nanbo Kang

Yu Tang

Lei Bai

Teng Long

Junchao Luo

Lijun Xue

Yimin Kou

Bibo Guo

Shilong Wei

Yanbo Ji

Qin Yuan

The present invention provides an air purifier which includes an outer case () having a filtering cavity () and a driving cavity () space apart from each other, a filter () received in the filtering cavity (), a driving fan () received in the driving cavity (). The outer case has at least one air inlet () and an air output arrangement (). The air purifier further includes an air hub () provided between the filtering cavity () and the driving cavity (). The air hub () includes a first air drawing frame () and a second air drawing frame (). The first air drawing frame () extending within a central cavity () of the filter () and is coaxially formed with respect to the filter (). An axial direction of the first air drawing frame () is aligned with a longitudinal axis of the driving fan (). The second air drawing frame () peripherally, upwardly and radially extends from the first air drawing frame () toward an upper end of the filter (). The first air drawing frame () and a second air drawing frame () increase total surface area for air flow and reduces air resistance and noise.

Air purifier

A touchpad assembly includes a baseplate, a support, and a balance bar. The baseplate includes a first plate body and a second plate body. The first plate body is higher than the second plate body in a thickness direction of the touchpad assembly, and the first plate body is configured to accommodate a battery of the electronic device. The support is disposed on a side of the baseplate, the balance bar is supported between the support and the baseplate, and is capable of rotating around a set fulcrum of the baseplate. The balance bar includes a main body portion and supporting portions. At least part of each of the supporting portions is located on the first plate body. An end of each of the supporting portions that extends away from the main body portion does not extend past a bottom surface of the first plate body in the thickness direction.

Touchpad assembly and electronic device

Provided is a single-axis pointing pure magnetic control algorithm for a spacecraft based on geometrical analysis to realize single-axis pointing control of the spacecraft through the pure magnetic control algorithm in which a magnetic torque is only output by a magnetorquer to interact with a geomagnetic field to generate a control torque. The algorithm uses a spatial geometry method to obtain an optimally controlled magnetic torque direction, thereby designing a PD controller. The problem that the traditional magnetic control method is low in efficiency and even cannot be controlled is overcome. The algorithm is simple and easy, can be used in the attitude control field of spacecrafts, and achieves the pointing control in point-to-sun of a solar array and point-to-ground of antennae.

Single-axis pointing pure magnetic control algorithm for spacecraft based on geometrical analysis

A mobile terminal includes a circuit board, a heat emitting element disposed on the circuit board, a shielding can, and a middle frame, where the shielding can is connected to the circuit board, and forms a shielding space together with the circuit board; the heat emitting element is accommodated in the shielding space; the circuit board is disposed on one side of the middle frame; the middle frame is provided with an accommodating space; and the shielding can includes a top and a bottom that are disposed opposite to each other, where the bottom is configured to be connected to the circuit board, and the top is located above the heat emitting element and extends to the accommodating space. The present disclosure further provides a heat dissipation and shielding structure. The present disclosure helps make a mobile terminal and a heat dissipation and shielding structure lighter and thinner.

Mobile terminal and heat dissipation and shielding structure

Growing community of inventors

Shenzhen, China

Yingchun Zhang