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54results about How to "Easy and efficient connection" patented technology

Electrical machine with electronic power unit for conversion

A matrix converter (3) for the conversion of a polyphase alternating current (6) into a desired alternating output current (7) in which m phases of the polyphase alternating current (6) are converted into alternating output current with n (n<m) phases of a load by a multiple number of controllable bidirectional switches (4). The converter includes at least one stage (8,9), and in that at least one stage (8,9) of the converter each phase (6) of the polyphase alternating current (6) is controlled by a controllable bidirectional switch (4). The at least one stage (8,9) of the converter (3) is formed by a two-dimensional array of stage stacks (41) of switching elements (10) which stage stacks (41) are arranged substantially parallel to each other along a stack direction (62) perpendicular to the plane (47) of the matrix converter (3), and wherein the input of the stage stacks (41) is provided by bus bars (43) located on one side of the stage stacks (41) and substantially in a plane parallel to the plane (47) of the matrix converter (3), and the output of the stage stacks (41) is collected by grid bus bars (42) located on the other side of the stage stacks (41) and substantially in a plane parallel to the plane (47) of the matrix converter (3). An electrical machine (1) includes a stator (15) and a rotor (16) rotatably and coaxially mounted therein, and a housing (2) within which the stator (15) and the rotor (16) are substantially located, and such a matrix converter (3) for conversion of polyphase alternating current, wherein the matrix converter (3) is located in a separate cubicle (27) and this separate cubicle (27) is located outside of the housing (2) and substantially radially adjacent to the stator (15), thus sideways attached or on top of the generator housing next to the stator.
Owner:ALSTOM TECH LTD

Qt-based 3D printing control system and communication method thereof

The invention discloses a Qt-based 3D printing control system and a communication method thereof. The Qt-based 3D printing control system comprises a controller, a field printing device and an upper computer. The field printing device comprises motion shafts, namely, servo motors. The method comprises the steps that a controller transmits a control signal to the servo motors to enable all the shafts to move according to a planned path; the upper computer communicates with the controller; tasks include monitoring motion information of the motion shafts and controlling and adjusting parameters in the printing process; controller communicates with the upper computer in a communication mode based on the Ethernet network, the IP address of the controller is preset, and whether communication succeeds or not is judged through a QT open instruction designated communication method and the opened port number; a query request is transmitted to a lower computer controller from upper computer software, and the controller returns corresponding data in a certain format according to the communication protocol. The Qt-based 3D printing control system is good in data processing capability, rich in on-chip resource and capable of detecting and controlling kinematic variables of a lower computer more and has the advantages of being high in reliability and good in stability.
Owner:NANJING UNIV OF SCI & TECH

System for detecting and correcting filing posture of bench worker

PendingCN113284398APlay the role of data transmissionEasy and efficient connectionTeaching apparatusComputer hardwareGyroscope
The invention discloses a bench worker filing posture detection and correction system in the field of bench workers, and the bench worker filing posture detection and correction system comprises a bench worker table, a display screen, a bench vice, a cutter body, a connecting cover, a hollow cutter handle, a mounting frame, a battery, a mainboard, a sealing cover, a workbench, a file, a detector and feedback software, and the workbench is formed by the bench worker table, the display screen and the bench vice. The file is composed of a file body, a hollow handle, a connecting cover and a sealing cover, the detector is composed of a mounting frame, a mainboard and a battery, the mainboard is composed of a Bluetooth module, a wifi module, a six-axis gyroscope, an eccentric rotor, a buzzer, an RGB bulb and a charging interface, and the feedback software is used for reflecting the attitude of the gyroscope in real time, collecting use data of the file and performing immediate warning to correct the filing posture. The real-time data of filing postures are transmitted through cooperation of the six-axis gyroscope and the client feedback software, and the gyroscope is installed in the detection device to directly feed back the balance state of the file.
Owner:南京师范大学中北学院 +1

Building steel structure connecting structure

The invention discloses a building steel structure connecting structure, and relates to the technical field of building steel structures. The building steel structure connecting structure comprises amain keel, two symmetrically-arranged connecting assemblies are installed on the main keel, and auxiliary keels are installed on the connecting assemblies; a first positioning groove is formed in theouter wall of the main keel; the connecting assemblies comprise mounting plates, the side walls of the mounting plates are fixedly connected with T-shaped sliding rails, first fixing plates and secondfixing plates, the included angle positions of the first fixing plates and the mounting plates are fixedly connected with first reinforcing ribs correspondingly, the included angle positions of the second fixing plates and the mounting plates are fixedly connected with second reinforcing ribs correspondingly, and the base face of a movable plate is rotationally connected with a threaded rod; andtwo second positioning grooves are symmetrically formed in the side wall of each auxiliary keel. According to the building steel structure connecting structure, the problems that when the main keel and the auxiliary keels of a building steel structure are connected, a supporting plate needs to be welded to the main keel firstly, then the auxiliary keels are installed on the supporting plate through bolts, the operation is quite inconvenient, and the assembling efficiency is quite low are solved.
Owner:惠安洛强装修设计中心

Zipper cloth belt, cloth belt connecting structure, cloth belt connecting process and article

The invention provides a zipper cloth belt. The structure form of a traditional zipper cloth belt is broken through. In the actual installation process of the zipper cloth belt, for example, when thezipper cloth belt is connected with connecting cloth of clothes, backpacks and the like, the zipper cloth belt can be connected with the connecting cloth only by overlapping the connecting areas together and adopting a heating ironing mode to melt the thermoplastic adhesive and adhere the thermoplastic adhesive to the connecting cloth, and firm installation of the zipper cloth belt is completed after cooling. Compared with the prior art, the zipper cloth belt is convenient and efficient to connect, good in flatness and integrity, excellent in waterproof performance and tear resistance, low incost, firm and high in practicability. The invention further provides a cloth belt connecting structure with the effect. The invention further provides a connecting process of the cloth belt with theeffect. The invention further provides an article using the cloth belt connecting structure, and the cloth belt connecting structure is good in flatness and integrity, excellent in waterproof performance and tear resistance, low in cost and firm.
Owner:FUJIAN ZIPPER SCI & TECH CO LTD

A zipper cloth tape, a cloth tape connection structure, a cloth tape connection process and articles

The present invention proposes a zipper tape, which breaks through the structure of the traditional zipper tape. In the actual installation process of the zipper tape, when the zipper tape is connected with the connecting cloth of clothing, backpacks, etc., only the connecting areas need to be overlapped. And adopt the way of heating and ironing to melt the thermoplastic adhesive and stick together with the connecting cloth to realize the connection between the zipper cloth tape and the connecting cloth, and complete the firm installation of the zipper cloth after cooling. Compared with the prior art, the zipper tape of the present invention has convenient and efficient connection, good flatness and integrity, excellent waterproof performance and tear resistance, low cost, firmness and strong practicability. The present invention also proposes a cloth tape connection structure with the aforementioned effects. The present invention also proposes a fabric tape connection process with the aforementioned effects. The present invention also proposes an article using the aforementioned tape connection structure, which has good flatness and integrity, excellent waterproof performance and tear resistance, low cost and firmness.
Owner:FUJIAN ZIPPER SCI & TECH CO LTD
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