Nr Electric Co., Ltd

Nr Engineering Co., Ltd

Nr Electric Power Electronics Co., Ltd.

Southeast University

Jiangsu Normal University

Bozhon Precision Industry Technology Co., Ltd.

Suzhou Bozhon Robot Co., Ltd.

Tencent Technology Company Limited

Xiang Zhang

Taixun Fang

Zhao Li

Lei Liu

Fan Yang

Bo Chen

Chihan Chen

Haibo Liu

Feng Rao

Dadong Xie

Weiming Pan

Fengfeng Ding

Guangtai Zhang

Liang Liu

Gongbo Zhou

Jian Ming Liu

Haiying Li

Dongming Cao

Eryu Wang

Chaoquan Tang

Yongping Wang

Zhenzhi He

Haibin Liu

Ping Zhou

Peng Zhang

Ningning Hu

Ming Yuan

Dongyu Shen

Songyu Liu

Yanyu Su

Guqing Zhou

Zhenyang Yuan

Chen Zhou

Huiliang Zhang

Jinhe Wu

Li Zheng

Ge Song

Xiaodong Shi

Shengfu Gao

Guoxing Bai

Duling Lu

Lu Li

The disclosure belongs to the technical field of materials for civil construction engineering, and specifically relates to a green and low carbon emission foamed lightweight soil prepared by using serpentine, magnesium oxide and COas raw materials. In the serpentine carbon sequestration foamed lightweight soil, the ingredients of raw material include: magnesium oxide, serpentine, a filler, CObubbles and water.

Serpentine carbon sequestration foamed lightweight soil and preparation method thereof

A point stabilization control method includes determining a first displacement of the robot relative to the target object according to a position of the target object and an initial position of the robot; determining a to-be-offset displacement according to the first displacement and a second displacement of the target object relative to a target point and determining a target motion rate and a target motion direction of the robot according to the to-be-offset displacement and a mapping relation of a motion rate, a motion direction and the to-be-offset displacement; determining a current position of the robot according to the target motion rate and the target motion direction; and using the current position as the initial position and returning to the preceding steps until a distance between the current position of the robot and a position of the target point is less than a preset threshold.

Point stabilization control method and apparatus for a mobile robot

A thyristor valve test system based on cooperation of logic functions of software, wherein the test system comprises: a thyristor valve () to be tested, a VBE () and a tester (), and the VBE () has a dedicated test mode, the tester () provides three steps for each test item. The thyristor valve () to be tested and the VBE () are connected by optical fibers (), and the thyristor valve () to be tested and the tester () are connected by cables (), and there is no connection between the VBE () and the tester ().

Thyristor valve test system based on cooperation of logical functions of software

Within a predetermined time range, record time information of status indication signals fed back by thyristor control units (TCU) of a converter valve. Perform statistics and comparison of the pieces of time information using a bias statistics method. Mark a thyristor level whose bias exceeds a preset value. And determine a probability of failure in the thyristor according to the marking result.

Converter valve fault warning method and system

An assembly method for a DC converter valve includes: assembling a top shielding case: lifting the top shielding case to a designated height via a lifting platform, and then fixedly connecting the top shielding case to lower ends of insulators, fixedly connecting upper ends of the insulators to a truss, the truss being located on the top of a valve hall; assembling valve layers: lifting the valve layers to designated locations in a sequence from top to bottom via the lifting platform; and assembling a bottom shielding case: lifting the bottom shielding case to a designated height via the lifting platform, connecting the bottom shielding case to a lowermost valve layer and suspending the bottom shielding case below the lowermost valve layer via suspension insulators. By means of the present invention, the operation is convenient, a small quantity of devices is used, and the security and reliability are high.

Assembly method for DC converter valve

A housing structure of a planar resistor is provided, wherein electrode extraction ends of the planar resistor are on the same side of the resistor. A housing structure body is made of an insulating material covering the surface of the resistor. An insulating structure having a groove opening facing toward or away from the resistor is provided around each electrode extraction end of the resistor. The insulating structure is configured to be a multi-tooth or multi-groove insulating structure.

Housing structure of planar resistor

An automatic handle assembly system for a paint brush, including a feeding device, a conveying device, a handle pushing device, a pneumatic system, and a control system. The feeding device is used for transporting a glue-filled paint brush head to an entrance of the conveying device. The conveying device is used for realizing transportation, pressing and precise positioning of the paint brush head. The handle pushing device is used for pushing a paint brush handle to precisely insert into the paint brush head. The feeding device, the conveying device, and the handle pushing device are all connected to the pneumatic system and the control system.

Automatic handle assembly system for paint brush

Disclosed are a resistor, a heat dissipater and a combinatory device of the resistor and the heat dissipater, and relates to the field of power electronics. The resistor is cylindrical, and comprises a metal end, an insulating part, a casing, metal bars, a resistor wire, thermally conductive insulating fillers and a metal connection mechanism. The metal connection mechanism of the resistor and the heat dissipater are connected by means of direct contact. The structure and the connection method can shorten the length of the resistor, completely insulate the electrical circuits of the resistor from the possible leakage of the water inlet- and outlet-pipe of the heat dissipater, and enable the combinatory device of the resistor and the heat dissipater to be structurally more compact and the connections thereof cleaner.

Resistor, a heat dissipater and a combinatory device of resistor and heat dissipater

A thyristor assembly radiator for a DC converter valve. A water discharging port of an Nradiator is communicated with a water discharging port of an (N&#x2212;2)radiator. A water feeding port of the Nradiator is communicated with a water feeding port of an (N+2)radiator. Or, a water feeding port of the Nradiator is communicated with a water feeding port of the (N&#x2212;2)radiator, and a water discharging port of the Nradiator is communicated with a water discharging port of the (N+2)radiator. A water discharging port of an Mradiator is communicated with a water discharging port of an (M&#x2212;2)radiator, and a water feeding port of the Mradiator is communicated with a water feeding port of an (M+2)radiator, or a water feeding port of an Mradiator is communicated with a water feeding port of the (M&#x2212;2)radiator, and a water discharging port of the Mradiator is communicated with a water discharging port of an (M+2)radiator. Water feeding ports of the last two radiators are communicated. According to the radiator, the number of joints of a cooling system is reduced, the risk of leakage is lowered, the operation reliability of a converter valve is improved, the maintenance difficulty is lowered, and the maintenance time is shortened.

Thyristor assembly radiator for DC converter valve

A converter valve includes a top shielding cover, a bottom shielding cover, at least two vertically stacked valve layers, and a maintenance platform. The top shielding cover is disposed at an upper portion of an uppermost valve layer. The bottom shielding cover is disposed at a lower portion of a lowermost valve layer. Each of the valve layers comprises two valve modules disposed side-by-side in a horizontal direction. The two valve modules are electrically connected via a busbar and mechanically connected via securing connectors. A lower valve layer is connected to an upper valve layer in a suspended manner. A body of the maintenance platform is located between horizontal planes on which two vertically adjacent valve layers are located, or between horizontal planes on which the lowermost valve layer and the bottom shielding cover are located.

Converter valve

Growing community of inventors

Jiangsu, China

Xiang Zhang