33results about How to "Short trace" patented technology

The invention discloses a laser radar. The laser radar comprises a main shaft, a radar rotor, a base, a first main board, a second main board, an angle measurement assembly, a power supply assembly and a communication assembly. The first main board is fixedly arranged relative to the radar rotor and surrounds the main shaft, and the second main board is fixedly arranged relative to the base and iscloser to the base than the first main board; the angle measuring assembly, the power supply assembly and the communication assembly are located between the first main board and the second main board, and at least one part of the angle measuring assembly, at least one part of the power supply assembly and at least one part of the communication assembly are arranged around the main shaft; the first measurement module, the first power supply module and the first communication module are fixedly arranged relative to the radar rotor, and the second measurement module, the second power supply module and the second communication module are fixedly arranged relative to the radar stator. According to the invention, the wiring of each module can be shortened, the installation and maintenance are convenient, and the mechanical reliability of the laser radar is improved.

The invention relates to doubling process step equipment in spinning machinery and particularly relates to a novel doubling groove drum and a manufacturing process thereof. The existing superplastic alloy groove drum has the defects that the superplastic alloy groove drum has poor gas bulging forming effect, and is less prone to gas bulging forming, a chromium coating on the surface of the groove drum is thin, has bubbles and is easy to peel off, the surface roughness is not smooth, the material impact toughness is poor, the superplastic alloy groove drum can not ensure that a groove curve and edge angles can not be formed according to stipulations, the routing in a doubling state is inconsistent and bent, a sliver has more pilling and hair feather, a spider web becomes wide and shows crescent type overlap / a small spider web occurs frequently, the groove drum can vibrate under high-speed operation conditions, and the routing is not fast. The invention provides the novel doubling groove drum and the manufacturing process thereof, and the structure can improve a traditional smelting process and overcome the defects of the existing superplastic alloy groove drum by optimizing the groove curve on a groove drum body, and adding a trace misch metal element component in the manufacturing process.

The invention discloses an LED display screen capable of rising and falling. The LED display screen comprises a control system, an LED screen body, an LED screen body lifting system and a power supply system. The LED screen body comprises a plurality of display units. Each display unit comprises a plurality of LED lamp strips. The LED screen body lifting system comprises a horizontal guide rail, a vertical guide rail, two lifting trolleys, trusses and an auxiliary device. The horizontal guide rail is used for dragging and guiding the lifting trolleys in the horizontal direction. The vertical guide rail is used for lifting all the trusses. The trusses move along the horizontal guide rail and the vertical guide rail. The two ends of the trusses are provided with the lifting trolleys respectively. The auxiliary device is used for fixing the LED lamp strips. At least two lamp strips are transversely arranged on each truss. The power supply system comprises an AC cable and an AC / DC conversion module. The display screen can rise and fall in a timed mode according to demands of a user, and video information can be displayed in real time without influencing the attractive appearance of a building.

The invention discloses a control system for a lifting LED display screen. The control system comprises multiple display units arranged on guide rails, receiving cards arranged on the display units, sending cards arranged on a control chamber of the LED display screen, and a video player. Each display unit comprises multiple LED light bars and a truss and further comprises distance sensors, a speed sensor and proximity switches. The sending cards are used for receiving video information sent by the video player and converting the video information into a mode recognized by the receiving cards. The receiving cards are used for sending the video information to the LED light bars so as to be displayed. The sending cards can control the LED display screen according to information of the speed sensors, the distance sensors and the proximity switches, the LED display screen can be kept in a non-working state in the ascending and descending processes, a lifting system and a display system cannot work at the same time, and flexibility and safety of the lifting LED display screen are improved.

The invention discloses a built-in type switch cabinet. The built-in type switch cabinet comprises a cabinet body and a circuit breaker. The cabinet body is provided with a front cabinet plate; the cabinet body is internally provided with a three-phase static contact unit; the static contact unit comprises an upper static contact and a lower static contact; the upper static contact is electrically connected with a main busbar; the lower static contact is electrically connected with a branch busbar; the circuit breaker is provided with a three-phase moving contact unit; the moving contact unit comprises an upper moving contact and a lower moving contact; the three-phase static contact unit is arranged in tandem; the three-phase moving contact unit is arranged in tandem; the circuit breaker can be pushed into the cabinet body from the front of the cabinet and can move to the left and right between a test position and a work position; each phase of moving contact unit and each phase of static contact unit of the circuit breaker at the work position are contacted and electrically connected; and the front cabinet plate is provided with an observation window. The advantages are as follows: user operation is carried out in front of the cabinet, contact states can be observed through the observation window during operation, good isolation or contact is ensured, safety hidden risks are avoided, the performance is improved, the cost is reduced, and the reliability and safety are improved.

The invention provides a filter packaging structure and a packaging method thereof. The method comprises the following steps of 1) providing a high-resistance silicon substrate; 2) forming a groove with a preset depth in a first surface of the high-resistance silicon substrate, and forming a through silicon via in the high-resistance silicon substrate; 3) forming an insulating layer on the inner wall of the through silicon via; 4) forming a conductive through silicon via structure; 5) forming a first ground wire and a second ground wire, and forming a first dielectric layer; 6) forming a second dielectric layer, and forming a third dielectric layer; 7) forming a first transmission line, and forming a second transmission line; and 8) forming a fourth dielectric layer, and forming a third transmission line. The high-resistance silicon substrate is adopted as a chip substrate of a filter; the filter is connected with the substrate through a micro-strip line transmission structure; and theconductive through silicon via structure on the high-resistance silicon substrate leads a lead to the back surface of the high-resistance silicon substrate, so that the lead can be directly connectedwith a packaging substrate in a vertical direction and can be interconnected with other devices in a packaging body.

According to the embodiment, the invention discloses a gate drive circuit. In the gate drive circuit, first control modules respond to signals of first signal en and second signal ends, and in a touch control stage, third voltage ends and first output ends are conducted by virtue of the first control modules; second control modules respond to the signals of the first signal ends and the second signal ends, and in the touch control stage, the third voltage ends and the second output ends are conducted by virtue of the second control modules; therefore, by arranging the first and the second control modules in various canning units, in the touch control stage, the first output ends are controlled at a low potential by virtue of the first control modules, and meanwhile, the second output ends are controlled at a low potential by virtue of the second control modules, so that a capacity coupling action between various gate lines and a touch control electrode in a touch control display panel applied to the gate drive circuit is weakened, and touch control detection precision is enhanced; and an added cable is relatively short, relatively narrow and relatively small in occupied bezel area; therefore, the gate drive circuit is conducive to implementation of a narrow bezel.

The application discloses a laser radar. The laser radar in the present application comprises a main shaft, a radar rotor, a base, a first mainboard, a second mainboard, an angle measuring assembly, apower supply assembly and a communication assembly. The first mainboard is fixedly arranged relative to the radar rotor and is arranged around a main shaft, and the second mainboard is fixedly arranged relative to the base and is closer to the base than the first mainboard; the angle measuring assembly, the power supply assembly and the communication assembly are disposed between the first mainboard and the second mainboard, and at least a portion of the angle measuring assembly, at least a portion of the power supply assembly, and at least a portion of the communication assembly are disposedaround the main shaft; a first measuring module, a first power supply module and a first communication module are fixedly arranged relative to the radar rotor, and a second measuring module, a secondpower supply module and a second communication module are fixedly arranged relative to the radar stator. The laser radar can shorten the traces of each module, facilitate installation and maintenance, and improve the mechanical reliability of the laser radar.

The invention discloses a patch antenna structure with an adjustable directional diagram. The patch antenna structure comprises a metal floor. A feed patch is connected to the metal floor and is provided with a first feeder line, a feeding point connected to the first feeder line, a second feeder line, and a second feeding point connected to the second feeder line. The first feeder line and the second feeder line intersect at a node, wherein the length of the first feeder line between the node and the first feeding point is equal to that of the second feeder line between the node and the second feeding point. A switching component for changing the relative phase between the first feeding point and the second feeding point is disposed in the first feeder line and / or the second feeder line.The invention also discloses an antenna feeder board. The patch antenna structure with an adjustable directional diagram and the antenna feeder board of the invention can switch or scan two directional diagrams by using one antenna, are simplified in design, low in cost, and reasonable in structural design, effectively control the direction of the circuit, and have less influences on the radiationdirectional diagram.

The invention relates to material loading equipment for a thermal treatment furnace. The equipment comprises a frame, a rail component which is arranged on the frame, a hopper which can vertically ascend and descend along the rail component, a transmission mechanism, a travel control device which is in transmission connection with the transmission mechanism and a motor, wherein the transmission mechanism comprises a pair of first chain wheels which is coaxially arranged and is in transmission connection with the motor; each first chain wheel is wound with a chain; each chain is provided with two end parts; and one end part is connected with the hopper, and the other end part is suspended downwards. In the equipment, only one pair of chain wheels and one transmission shaft are required; one end of each chain is connected with the hopper, and the other end of the chain moves around the chain wheel on the upper side and then is freely suspended, so that cost can be reduced, and the structure can be simplified; the tensity of the chains are not required to be adjusted; and a stepping motor is used for driving the transmission shaft to rotate and concentrating the travel control deviceon the upper side of the material loading equipment, the material loading hopper can be precisely controlled to stop at a certain height through the triggering of a plurality of cams, electric wires have short routing paths, and the equipment is easy to maintain and repair.