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39results about How to "Short connection distance" patented technology

Semiconductor integrated circuit device

A scan chain group structure in which a group of scan chains formed for each clock tree system in an LSI is subjected to a reconnection process so that the scan chain group is not present across a plurality of clock distribution regions obtained by dividing the clock-supplied region of the clock tree of one system and that the connection distance thereof in the distribution region becomes short, a test clock input mechanism in which test clocks to be input to the distribution regions are independent sub-clock phases, and an on / off mechanism of the clocks to be input to the distribution regions are realized. Further, the scan-in / out and scan test performed at the same time are limited in one region or between single regions, and tests in all regions and between all regions are carried out by a plurality of times of test steps.
Owner:HITACHI LTD

Circuit board and method of manufacturing same

The present invention provides a circuit board and a method for manufacturing the circuit board, the circuit board and method allowing a further shorter connection distance between electrodes of a semiconductor device, and also allowing a sufficient thickness of a solder pre-coat in a soldering process. The circuit board comprises bonding pads for being connected with bumps of a semiconductor element, which act as connection terminals, the bonding pads being arrayed in parallel lines on a surface of the circuit board, and, on the adjacent parallel lines, the bonding pads being positioned to form a zigzag pattern along the parallel lines longitudinally.
Owner:SHARP KK

Integrated antenna array and base station

The invention provides an integrated antenna array and a base station. The integrated antenna array comprises at least two antenna oscillators, a power split coupling plate and a filter. The power split coupling plate is provided with a power split coupling circuit for coupling a signal outputted by the filter and transmitting the signal to different antenna oscillators. The filter and the antennaoscillators are mounted on two sides of the power split coupling plate and are connected by the power split coupling circuit on the power split coupling plate, therefore, the two antenna oscillators,the power split coupling plate and the filter are integrated to be an integrated structure, the structural components are highly integrated, the connection distance between various components is short, the antenna space is saved, the weight of the antenna is reduced, and a circuit board is not needed and the signal loss is small.
Owner:东莞弗兰德通信科技有限公司

3D printer slice contour path planning algorithm

The invention relates to protect a 3D printer slice contour path planning algorithm. According to the 3D printer slice contour path planning algorithm, firstly, an optimized shortest distance algorithm is adopted to determine starting points of all closed loop contours in the slicing process, the starting points serve as connecting points of a 3D printing contour sequence, and the target of the algorithm is to shortens the distance between the starting points as much as possible; secondly, an initial parameter value of the ant colony algorithm is determined by adopting a single variable method; and thirdly, path planning is carried out on the determined printing starting point by utilizing an improved ant colony algorithm, so as to obtain an optimal printing path. According to the 3D printer slice contour path planning algorithm, the optimal printing sequence is planned by reasonably selecting the printing starting point of each closed loop contour, so that the 3D printing efficiency is improved, and the printing time is shortened.
Owner:HARBIN UNIV OF SCI & TECH

Television main board PCB and TDMA noise inhibition method thereof

Provided are a television main board PCB and a TDMA noise inhibition method thereof. The television main board PCB comprises an operation amplifier IC and a filtering capacitor. The operation amplifier IC is arranged on the top layer of the television main board PCB and comprises power supply input ends and power supply ground ends. The filtering capacitor and the operation amplifier IC are arranged in a back-to-back manner. The filtering capacitor is arranged on the bottom layer of the television main board PCB. The power supply ground ends of the operation amplifier IC are firstly electrically connected with one pole of the filtering capacitor, and then electrically connected with the main board ground of the television main board PCB though one pole of the filtering capacitor. The power supply input ends of the operation amplifier IC are electrically connected with the other pole of the filtering capacitor. The peripheral areas of the wires electrically connected between the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are not covered by copper layers. According to the invention, the connection distance between the operation amplifier IC and the filtering capacitor of the television main board PCB is the shortest, the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are connected with the main board ground of the television main board PCB together, a single-point loop mode is formed since the wired areas between the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are not covered by the copper layers, and audio and video signals containing TDMA noises are directly sent to the filtering capacitor to be effectively filtered.
Owner:TCL CORPORATION

3D stacked spatial power synthesis amplifier

The invention discloses a 3D stacked spatial power synthesis amplifier, and aims to provide a 3D power synthesis amplifier which is shorter in connection distance and higher in integration degree. According to the technical scheme, a first composite array plane 1 and a second composite array plane 2 are stacked, a composite array plane N and a composite array plane N1 are stacked, and input / outputnodes of the composite array planes 1-N are vertically interconnected from bottom to top and overlapped together in the Z direction to form an N array; an input radio frequency channel and an outputradio frequency channel which penetrate through the layers in the X direction are formed in layer stacks of the synthetic array planes 1-N based on the 3D micromechanical technology, and three-dimensional packaging of three-dimensional integration and signal communication is formed in the Z-axis direction; therefore, a hybrid 3D array in which a plurality of amplifier array planes and power distribution / synthesis network array planes are alternately stacked and vertically interconnected is formed. According to the invention, more amplifiers can be combined in the same volume. And the small-sized and high-power use is met.
Owner:10TH RES INST OF CETC

Satellite positioning navigation module for mobile terminal

In order to solve the problems of electromagnetic interference and electromagnetic compatibility when satellite positioning navigation chips are integrated into a module, the invention provides a satellite positioning navigation module of a mobile terminal. The problems of the electromagnetic interference and the electromagnetic compatibility are eliminated or reduced through reasonable arrangement of pins. The satellite positioning navigation module can be widely applied to the mobile terminal.
Owner:北京登合科技有限公司

Wireless local area network module for mobile terminal

In order to solve the problems of electromagnetic interference and electromagnetic compatibility occurring when WLAN chips are integrated into a module, the invention provides a WLAN module for mobile terminals. The problems of electromagnetic interference and electromagnetic compatibility are eliminated or reduced by reasonably sorting pins. The WLAN module can be widely applied to the mobile terminals.
Owner:北京登合科技有限公司

Band clip and wire harness

A band clip includes a binding band portion and a clip portion. The clip portion has a flange portion, a column portion, four inclined pieces inclined relative to the column portion, and a connecting piece connecting the column portion and each inclined piece. The clip portion is constituted of a shape memory resin and acquires a memorized shape such that a connecting distance between the column portion and each inclined piece becomes shorter than at normal temperature. When fitting the clip portion to a through hole, a second end portion near a vehicle body panel bends so that the inclined piece is locked to an edge of the through hole. When removing the clip portion from the through hole, a distance between a lower end portion of the inclined piece and a central axis of the column portion reaches a size that can pass through the through hole.
Owner:SUMITOMO WIRING SYST LTD

Pixel driving structure and display panel

The invention provides a pixel driving structure and a display panel, relates to the technical field of display, and solves the problem that various different types of feed-through effects occur due to parasitic capacitance between pixels, the pixel driving structure at least comprises a pixel unit, the pixel unit comprises a first pixel group, a second pixel group and a gate line group, the gate line group comprises upper scanning lines and lower scanning lines, all sub-pixels in the first pixel group are electrically connected with the same upper scanning line, and all sub-pixels in the second pixel group are electrically connected with the same lower scanning line. According to the pixel driving structure, the types of various stray capacitances of the sub-pixels in the first pixel group and the second pixel group are reduced, so that in the scanning driving process of the pixel driving structure, compared with a pixel driving structure in the prior art, the types of feed-through effects occurring in the pixel driving process are reduced, the problem of uneven display brightness is solved, and the display quality is improved. And the risk of head shaking lines in the display process is reduced.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

DC combiner box

The invention relates to a DC combiner box, which belongs to the technical field of combiner devices for photovoltaic power generation. The DC combiner box comprises a box body. The box body is internally provided with combiner branches of which each is connected with an incoming end, a current sensor, a fuse, a combiner bus-bar, a circuit breaker and an outgoing end in turn. A monitoring device is arranged in the box body for being in collection connection with the current sensor. The current sensor of the DC combiner box is directly connected to the incoming ends of the combiner branches, sothat the current sensor can detect a current from an external input cable of the DC combiner box directly without going through the fuses, and the measurement is more accurate and reliable. Moreover,because the current sensor is located between the incoming ends and the fuses, a combiner box manufacturer does not need to connect the fuse by a wire, pass the wire through the current sensor and then connect the wire to the combiner bus-bar in order to connect the combiner branches and can directly connect the current sensor, the fuses and the combiner bus-bars in turn, the installation is convenient, and the efficiency of installation is improved.
Owner:XUCHANG XUJI WIND POWER TECH +1

All-in-one machine for wind turbine generator set

The invention discloses an all-in-one machine for a wind turbine generator set, and the all-in-one machine is characterized in that the all-in-one machine comprises a cabinet body, and a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed in the cabinet body; the grid-connected unit comprises a main circuit breaker; the main control power distribution unit comprises a three-phase transformer and a PLC; the input side of the three-phase transformer is electrically connected with any side of a main circuit breaker of the grid-connected unit,and the output side of the three-phase transformer forms a power supply of each power distribution loop; each input interface of the PLC is used for receiving various parameters, and each output interface of the PLC is electrically connected with a control coil of a contactor in each power distribution loop; the frequency conversion unit comprises a power grid side frequency converter, the input side of the power grid side frequency converter is used for being electrically connected with the alternating-current power grid, and the output side of the power grid side frequency converter is connected with the input side of the rotor side three-phase frequency converter. The all-in-one machine for the wind turbine generator set has the advantages of smaller size, lower manufacturing cost, safeand reliable structure and high cost performance.
Owner:CHONGQING KK QIANWEI WINDPOWER EQUIP

A TV main board pcb and its method for suppressing tdma noise

Provided are a television main board PCB and a TDMA noise inhibition method thereof. The television main board PCB comprises an operation amplifier IC and a filtering capacitor. The operation amplifier IC is arranged on the top layer of the television main board PCB and comprises power supply input ends and power supply ground ends. The filtering capacitor and the operation amplifier IC are arranged in a back-to-back manner. The filtering capacitor is arranged on the bottom layer of the television main board PCB. The power supply ground ends of the operation amplifier IC are firstly electrically connected with one pole of the filtering capacitor, and then electrically connected with the main board ground of the television main board PCB though one pole of the filtering capacitor. The power supply input ends of the operation amplifier IC are electrically connected with the other pole of the filtering capacitor. The peripheral areas of the wires electrically connected between the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are not covered by copper layers. According to the invention, the connection distance between the operation amplifier IC and the filtering capacitor of the television main board PCB is the shortest, the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are connected with the main board ground of the television main board PCB together, a single-point loop mode is formed since the wired areas between the power supply ground ends of the operation amplifier IC and one pole of the filtering capacitor are not covered by the copper layers, and audio and video signals containing TDMA noises are directly sent to the filtering capacitor to be effectively filtered.
Owner:TCL CORPORATION

membrane switch

The membrane switch provided by the present invention comprises an upper substrate, a partition and a lower substrate which are sequentially arranged from top to bottom. The cavity enclosed between the surface and the upper surface of the lower substrate forms a pressing air cavity, and a conductor is arranged inside the pressing air cavity, and the conductor is arranged on the surface of the opposite side of the upper and lower substrates. A second through hole connecting the pressing air cavity and the outside world is opened on the lower substrate, an isolation layer is set on the outer wall of the conductor, and the conduction of the upper and lower conductors is realized through the mutual contact of the isolation layer, so that the pressing air cavity is connected to the outside world. They are only connected through the second through hole, the connection distance is short, the efficiency of drainage and exhaust is high, the pressing comfort is good, the drainage is good, and the conductor can be isolated from the air and water in the pressing air cavity through the isolation layer to avoid Oxidation and corrosion of conductors achieve the technical effect of restoring the original function after the water is discharged.
Owner:KUNSHAN JOING TECH

Compact high-pressure plunger pump

The invention relates to a compact high-pressure plunger pump which comprises a gear pump component, a low-pressure disk component, a high-pressure oil passage block component and a high-pressure plunger disk component. The gear pump component is arranged on and connected with the low-pressure disk component, one end of the high-pressure oil passage block component is connected with the low-pressure disk component, and the other end of the high-pressure oil passage block component is connected with the high-pressure plunger disk component. Compared with the prior art, the invention has the advantages of few components, safety, reliability, small volume, convenient repair, and the like.
Owner:SHANGHAI HEPU MACHINERY MFG

Four-pin integrated circuit packaging structure with heat dissipation

The invention provides a four-pin integrated circuit packaging structure with heat dissipation, which comprises an encapsulation structure composed of a base island, a lead pin, a heat dissipation pinand a plastic packaging body. The packaging structure is used for packaging a device with three to four ports. Gaps are reserved between a PIN1 and a PIN2, and between a PIN1 and a PIN2 and a PIN4 and the base island, thereby improving the voltage withstanding ability. The PIN3 is connected with the base island, the pin width is increased, laying of a grounding wire is facilitated, heat generatedwhen a chip works can be radiated through the PIN3 exposed outside, and the chip can be prevented from being overheated and burnt down. Each flow channel of the frame can be molded with four lead frame units left and right, and the molding compound utilization rate is improved.
Owner:江西芯诚微电子有限公司

A Marine Intelligent DC Bus Tie Controller

The invention discloses a marine intelligent DC bus-couple controller, which comprises a water-cooling frame, and left and right water channels arranged inside the water-cooling frame, wherein a plurality of cable joints are arranged on the front surface of the water-cooling frame, an accommodating cavity of the water-cooling frame is internally provided with a main switch circuit assembly, an L-shaped laminated busbar, a pre-charging capacitor assembly, a negative busbar, larboard and starboard positive busbars, a current-limiting water-cooled electric reactor, a freewheeling loop assembly and a control assembly, the main switch circuit assembly is communicated with the left water channel, and the current-limiting water-cooled electric reactor is communicated with the right water channel.According to the marine intelligent DC bus-couple controller, the water-cooling frame is internally provided with the left and right water channels having waterway inlet and outlet, thereby reducingpipeline connection and being beneficial to heat dissipation; the number of layers of the L-shaped laminated busbar is few, and the stray inductance of the electric loop is small; the main switch circuit assembly and the pre-charging capacitor assembly are directly connected with the L-shaped laminated busbar, thus the structure is compact, the size is small, the energy density is high, and the layout form is beneficial to heat dissipation through natural convection; meanwhile, the number of interfaces of the whole bus-couple controller is small, the assembly is convenient, the size is small,the cost is low, and the disassemble and maintenance are very convenient.
Owner:WUHAN MARINE ELECTRIC PROPULSION RES INST CHINA SHIPBUILDING IND CORP NO 712 INST

All-in-one machine for wind turbine

The invention discloses an all-in-one machine for wind turbines, which is characterized in that it includes a cabinet body, and a grid-connected unit, a main control power distribution unit and a frequency conversion unit are installed in the cabinet; the grid-connected unit includes a main circuit breaker; the main control power distribution unit The unit includes a three-phase transformer and PLC. The input side of the three-phase transformer is electrically connected to any side of the main circuit breaker of the grid-connected unit. The output side of the three-phase transformer constitutes the power supply of each power distribution circuit; each of the PLC The input interface is used to receive various parameters, and each output interface of the PLC is used to electrically connect with the control coil of the contactor in each power distribution circuit; the frequency conversion unit includes a grid-side inverter, and the input side of the grid-side inverter is used to communicate with the above The AC grid is electrically connected, and the output side of the inverter on the grid side is used to connect with the input side of the three-phase inverter on the rotor side. The all-in-one machine for wind turbines of the present invention has the advantages of smaller volume, lower cost, safe and reliable structure, and high cost performance.
Owner:CHONGQING KK QIANWEI WINDPOWER EQUIP

Telephone functional module for mobile terminal

The invention provides a mobile phone functional module of a mobile terminal, which aims to solve the problems of electromagnetic interference and electromagnetic compatibility when a chip with a mobile phone function is integrated into a module. The electromagnetic interference among signals of pins is reduced or eliminated by reasonably arranging the pins. The mobile phone functional module canbe widely applied to mobile communication terminals.
Owner:北京登合科技有限公司

Machine base

The invention relates to a base of a machine tool. The base comprises a foundation, a middle support structure and an outer support structure. The foundation is of a frame structure, a water collecting disc surface is formed on the foundation, a spindle mounting hole is formed in the water collecting disc surface, the side surface, which is used for collecting cutting fluid, of the water collecting disc surface is a first side surface, and the surface, which is opposite to the first side surface, of the water collecting disc surface is a second side surface; the middle support structure is used for mounting a spindle of the machine tool, and the outer support structure is arranged around the middle support structure. The base is characterized in that the section, which is perpendicular to the spindle of the machine tool, of the outer support structure comprises a section outer ring and a section inner ring; the section outer ring is a convex polygon. The base of the machine tool has the advantages that shortcomings of large cantilevers, poor casting properties and insufficient rigidity due to the fact that an existing base of an existing machine tool is of an equal-wall structure in the shape of a circular ring and partial stressed rib plates are far away from the peripheral side walls of the existing machine tool when the solar radiation rib plates are connected with an existing middle support structure for an existing rotary spindle of a worktable can be overcome by the aid of the base; the machine tool is high in bearing capacity and good in casting property.
Owner:厦门市荟智精密机械科技有限公司

Membrane switch

The invention provides a membrane switch comprising an upper substrate, a partition plate and a lower substrate which are sequentially arranged from top to bottom; a first through hole penetrating through the partition plate is formed in the partition plate, a cavity defined by the hole wall of the first through hole, the lower surface of the upper substrate and the upper surface of the lower substrate forms a pressing air cavity, and electric conductors are arranged in the pressing air cavity; the electric conductors are arranged on the surfaces of the opposite sides of the upper substrate and the lower substrate; the partition plate is connected with the upper substrate and the lower substrate in a sealed mode; the lower substrate is provided with second through holes communicating the pressing air cavity with the outside, the outer walls of the electric conductors are provided with isolation layers, and conduction of the upper electric conductors and the lower electric conductors is achieved through mutual contact of the isolation layers; therefore, the pressing air cavity is communicated with the outside only through second through holes, the communication distance is short, the drainage and exhaust efficiency is high, the pressing comfort is good, and the drainage performance is good; the electric conductors can be isolated from air and water in the pressing air cavity through the isolation layers, oxidation and corrosion of the electric conductors are avoided, and the technical effect that the original function is restored after water is drained is achieved.
Owner:KUNSHAN JOING TECH

A gas diversion and confluence device

The invention relates to the technical field of semiconductor film deposition equipment, in particular to a gas flow separation and gathering device capable of introducing multiple process gas. The gas flow separation and gathering device comprises a flow gathering valve, flow separation valves and a cleaning valve; the flow gathering valve is provided with multiple intake ports and an exhaust port; one intake port is connected with the cleaning valve; and the rest intake ports are correspondingly connected with the flow separation valves. Intake and exhaust pipes, independent from each other,are arranged in the flow gathering valve, the flow separation valves and the cleaning valve. The gas flow separation and gathering device has the following advantages: the flow gathering valve, the flow separation valves and the cleaning valve are integrated, and meanwhile, realizes flow separation of process gas; the valves use direct welding for replacing VCR to obtain the shortest connecting distance to reduce the shortest gas stop time and stop space in valve bodies; and meanwhile, the device is provided with a heating substrate for effectively preventing condensation of liquid-state source gas in the valve bodies and pipelines.
Owner:PIOTECH CO LTD

Hydraulic type buffering internal protective cover of machine tool

The invention relates to the technical field of numerical control machine tools, and discloses a hydraulic type buffering internal protective cover of a machine tool. The hydraulic type buffering internal protective cover of the machine tool comprises a sliding mechanism and a tool installation rack for installing a tool. A baffle is arranged on one side of the tool installation rack. The slidingmechanism comprises a first telescopic plate. The first telescopic plate is fixed to the tool installation rack. The side, away from the tool installation rack, of the first telescopic plate is in sliding connection with a second telescopic plate. The second telescopic plate is in sliding connection with a fixed plate. An air bag is arranged between the first telescopic plate and the second telescopic plate, and an air bag is arranged at the position of sliding connection between the second telescopic plate and the fixed plate as well. The first telescopic plate and the fixed plate are each provided with a guide plate used in cooperation with a guide shaft. A hydraulic cylinder is arranged on the first telescopic plate. An output shaft of the hydraulic cylinder is fixedly connected with the first telescopic plate. An air tank communicating with the air bags is fixed to the hydraulic cylinder. A piston plate is arranged in the air tank in a sliding connection manner. The hydraulic typebuffering internal protective cover of the machine tool is simple in structure, capable of avoiding scraps well, and capable of working stably.
Owner:CHONGQING HONGGANG CNC MACHINE TOOL

Electric oil pump assembly and vehicle with same

The invention discloses an electric oil pump assembly and a vehicle with the same. The electric oil pump assembly is provided with a total oil inlet and a total oil outlet, and comprises a motor assembly and an oil pump assembly; and the motor assembly comprises a driving shaft, the oil pump assembly is supported on an end cover of the motor assembly in a floating mode, and the driving shaft extends into the oil pump assembly, and drives the oil pump assembly to realize the oil pumping work from the total oil inlet to the total oil outlet. According to the electric oil pump assembly, the connection distance between the motor assembly and the oil pump assembly is short, and the electric pump assembly is small and compact in structure, low in weight and low in cost.
Owner:BYD CO LTD
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