136results about How to "Flexible wiring" patented technology

Provided is an ac blushless double-feed motor relating to ac motor field and aiming to overcome defect of blushless double-feed speed regulating motor. The present invention comprises a stator and a rotor. The rotor winding is composed of variable-pole winding which has different pole-pairs number of p1 and p2. Coil type windings are provided on the rotor. The connection between the coil type winding coils is common m phase symmetirical winding with respect to pole-pairs number p1 and p2. The number z of rotor grooves placing the coil type winding coils satisfies relation: z is equal to p1 adding p2, wherein m is integer equal to or more than 2, p1 or p2 is positive integer. The present invention uses winding 'tooth harmonic' theory of ac motor to configure rotor windings so as to make the rotor winding of high conductor utilization rate. The effect of two sets of windings can be completely realized by only one set of winding, thus the motor structure is simplified, the volume is reduced. The wire connection is flexible, the rail manufacture technic is easy. The invention is particularly applicable for large motor.

The invention relates to a busway jack box with high safety performance. The jack box comprises a box body, wherein a jack seat, pins and a support positioning mechanism are arranged at the bottom of the box body; a locking mechanism is respectively arranged on two sides of the box body; the jack seat is fixed at the bottom of the box body through a fixed seat of the jack seat, and the pins can run through horizontal fixed grooves; a jack seat gasket is arranged at the bottom of the support positioning mechanism, and is arranged around the inner wall of the horizontal fixed groove, and is fixedly connected with the fixed seat of the jack seat through screws, so that the jack box can be jacked accurately, conveniently and quickly, and the safety and reliability of hot plugging can be ensured.

The invention belongs to a servo motion controller circuit, and specifically relates to a novel high-speed and high-precision multi-axis servo motion controller circuit. The circuit comprises an ARM-based intelligent control unit, SCM intelligent control modules, a USB bus communication unit, a data storage unit, an external network communication unit, a power management unit, a debugging and simulation unit, a passive crystal oscillation unit, and a human-computer interaction unit, wherein the USB bus communication unit is connected with N single-chip microcomputer intelligent control modules and is further connected with the ARM-based intelligent control unit through a USB bus, and the ARM-based intelligent control unit is connected with the data storage unit, the external network communication unit, the power management unit, the debugging and simulation unit, the passive crystal oscillation unit and the human-computer interaction unit. The novel high-speed and high-precision multi-axis servo motion controller circuit of the invention has the advantages of low cost, low power consumption, small size, high expansibility, good real-time performance, fast response, simple system wiring, high reliability, long life, and high resistance to electromagnetic interference.

The present invention is composite material sheet winding formation process and aims at avoiding empty and sliding during winding onto irregular surface. The composite material sheet winding formation process includes the first determining the empty core mold position, constituting core mold data by means of CAD technology and outputting core mold data file in the IEGES format to obtain the detail information of the surface and detect and optimize the empty points; and the subsequent increasing the winding angle to eliminate fiber empty and fiber sliding. The present invention has the beneficial effects of high versatility for winding formation of revolving body and non-revolving body, easy line profile control, convenient winding angle regulation and complete elimination of empty and sliding in winding onto irregular surface.

The invention discloses a two-bus communication and power supply MCU system, and the system comprises an intermediate control module, a terminal module and a bus power supply communication circuit. The intermediate control module is in communication connection with external equipment through serial port communication, and the intermediate control module is in communication and power supply connection with the terminal module through the bus power supply communication circuit; the intermediate control module comprises a first driving circuit module, a first decoding circuit module and a first MCU module with a serial port communication module; the first MCU module is in communication connection with external equipment through the serial port communication module and is used for receiving anequipment instruction of the external equipment and sending a control instruction to the external equipment; the terminal module comprises an RX-TX circuit module, a DC-DC circuit module, an open circuit and short circuit detection module, a second drive circuit module and a second MCU module. The system has the characteristics of high detection precision and good stability.

The optical fiber distribution box of the present invention includes a chassis body, and the chassis body is formed with an incoming line management cavity, an outgoing line management cavity, a mold box accommodating cavity, and a wiring cavity; the mold box accommodating cavity is used to accommodate at least one wiring module box , the wiring module box is connected through the wiring cavity; the optical fiber distribution box also includes a line management slot plate, and a number of line management slots are arranged on the line management slot plate; a line management slot plate separates the incoming line management cavity from the wiring cavity , and another cable management slot plate separates the outlet management cavity from the wiring cavity. As a result, the incoming and outgoing cables are sorted in an orderly manner in the cable management channel on the cable management channel plate, and the distribution of the cables in the wiring cavity is more orderly. At the same time, since the distribution module box itself is a distribution box, setting multiple distribution module boxes in the cavity of the module box makes the optical fiber distribution box have a larger wiring capacity, and can selectively Connect the cables to different wiring modules in a flexible way.

The embodiment of the invention provides a method for reasonably earthing and setting a cross river-sea shield tunnel. The method comprises the following steps: acquiring tunnel design and a construction parameter and determining physical and mechanical parameters of an earthing layer and a water layer on the tunnel; calculating a muddy water support pressure upper limit value capable of guaranteeing shield tunneling safety under different earthing thicknesses; calculating a muddy water support pressure lower limit value capable of guaranteeing shield tunneling safety under different earthingthicknesses; calculating a shield muddy water support pressure allowable difference value capable of guaranteeing tunneling safety under different earthing thicknesses; determining the maximal fluctuation range of shield muddy water support pressure in the tunneling process; enabling the maximal fluctuation range of the shield muddy water support pressure to be equal to the shield muddy water support pressure allowable difference value under a certain earthing thickness to acquire the minimal earthing thickness and considering safety coefficient to acquire earthing thickness. According to themethod, the rationality of the earthing thickness of the cross river-sea shield tunnel is guaranteed, and cleavage and instable failure of the tunneling face of the cross river-sea shield tunnel are avoided.

The invention relates to a cold and hot compress eye patch. The cold and hot compress eye patch comprises a patch body. A cold water bag, a hot water bag, a central control pressure stabilizer and a wiring line are arranged in the patch body. The cold water bag and the hot water bag are closely attached to the top and the bottom inside the patch body respectively. Refrigeration and heating devices used for refrigerating the cold water bag and heating the hot water bag are arranged between the cold water bag and the hot water bag. The central control pressure stabilizer is located between the cold water bag and the hot water bag. The refrigeration and heating devices are connected with the central control pressure stabilizer through lines. The central control pressure stabilizer is connected with one end of the wiring line, and the other end of the wiring line extends out of the patch body and is detachably connected with an external power supply. Compared with the prior art, the cold and hot compress eye patch is easy to operate, convenient to carry, capable of conducting refrigerating and heating at the same time and good in eye cold and hot compress effect.

The invention relates to an efficient energy-saving generatrix groove. The efficient energy-saving generatrix groove comprises a generatrix groove shell body, a plurality of bus bars arranged in the generatrix groove shell body, a jack box, a socket device and a cable wiring column; the shell body has a simple structure, is convenient to mount and has a good heat dissipation effect; meanwhile, the jack box with a high safety performance is arranged so that accurate, convenient and rapid jacking of the jack box is ensured; and meanwhile, the safety and reliability of hot plugging are ensured.

A protection system of a full-functional belt conveyer comprises a nose controller and a belt protection device, wherein the nose controller is arranged in the position of the nose of the belt conveyer, and includes a switching power supply, a bus interface converter, a PLC (Programmable Logic Controller) and a touch-control display screen; bus communication modules are internally fixed on switches of the belt protection device respectively, and are electrically connected with the switches in the belt protection device respectively; and all the bus communication modules are connected together through a two-wire system bus, and are connected with the PLC in the nose controller through the bus interface converter. Through the adoption of the protection system, the control wiring of the protection device is reduced, the material cost and the construction cost of a control cable are reduced, the wiring manner of the communication bus is flexible and can be freely topological, and the bus communication modules can set the address on line through software or a handheld programmer, so that the address is set simply and conveniently.

The present invention provides a high voltage isolation transformer, comprising one or more sub-transformers; when the sub-transformer is provided with one, the high voltage isolation transformer is equivalent to the sub-transformer; when multiple sub-transformers are provided, the plurality of sub-transformers are connected in a cascade form, and each sub-transformer is connected in parallel withan equalizing device. The high voltage isolation transformer provided by the invention avoids the situation that partial discharge is difficult to control, the voltage level can be extended to hundreds of kilovolts and above, heat dissipation of windings is facilitated, effective insulation isolation of the compact space can be realized, and the difficulty of transformer insulation design and manufacturing process difficulty and volume can be effectively reduced. The high voltage isolation transformer in the invention has high insulation tolerance strength and low field strength distribution,simultaneously, effective suppression of the partial discharge can be realized, low partial discharge design of the transformer is realized, and the magnitude of partial discharge in the voltage level above hundred kilovolts does not exceed 50pC. The high voltage isolation transformer has the advantages of small structural size, high mechanical strength and flexible installation.

The invention discloses a movable pipeline installation assisting device. The movable pipeline installation assisting device comprises a one-way moving joint type mechanical arm, a conveying and transporting system, a lifting steel frame system, a conveying and connecting system, an enclosure structure and a fixable wheel train. The one-way moving joint type mechanical arm serves as a body and is matched with the conveying and transporting system and the conveying and connecting system, the pipeline position can be adjusted on an actual construction engineering project site, constructors are assisted in completing pipeline butt joint hoop groove pressing work, the labor cost is saved, the site wiring efficiency is improved, by adjusting the conveying and transporting system, the conveying and connecting system, the fixable wheel train and a lifting steel frame system, the height position can be flexibly changed along with the change of the construction site, and the assembly working efficiency of site wiring is improved. Through combined assembly of the one-way moving joint type mechanical arm, the conveying system and an elevator, the movable pipeline installation assisting device with a brand new using effect is achieved.

A driving circuit of a display panel and an image display device are disclosed, the driving circuit comprising: a ramp DAC adapted to output a first ramp voltage, the first ramp voltage linearly changing over time in a preset voltage range according to a preset step; a data gating circuit, accessing i digital video signals, the data gating module is suitable for generating a corresponding data gating signal at the moment associated with the numerical value of each digital video signal according to each digital video signal, the data gating signal is used for gating the first ramp voltage to directly or indirectly serve as data voltage, and the data voltage is used for controlling the display state of a pixel circuit in the display panel; wherein the slope DAC is M bits, the number of bitsof each digital video signal is N, M is less than or equal to N, and i, M and N are positive integers. By adopting the technical scheme, the area of the driving circuit of the display panel can be effectively reduced.

The invention discloses an aluminum alloy bonding wire, which is a soft wedge-shaped bonding wire during an ultrasonic bonding process and can prevent a chip from being broken and further display high-temperature strength after a wiring process. The invention provides the aluminum alloy bonding wire, which is composed of scandium (Sc) of 0.15 to 0.5 weight percent and aluminum with the balance purity being over 99.99 weight percent. The aluminum alloy bonding wire further has cold wire-drawing tissues in forcibly soluable aluminum substrates and vickers hardness ranging from 21 to 30. The aluminum alloy bonding wire can be strengthened by adding zirconium (Zr) of 0.01 to 0.2 weight percent. The aluminum alloy bonding wire is soft during a bonding process, thus the bonding wire can be connected without breaking the chip. Furthermore, by performing timely thermal processing after the bonding process, the high-temperature strength of the aluminum alloy bonding wire can be improved.

The invention provides a vibration monitoring system for an opencut tunnel impacted by rockfalls and a monitoring method and relates to a safety monitoring technology. The vibration monitoring systemfor the opencut tunnel impacted by the rockfalls comprises a sensor part, a collector part and a monitoring center, the sensor part comprises acceleration sensors and video monitoring devices, and theacceleration sensors are arranged and distributed on a top plate of the opencut tunnel; the visual range of the video monitoring devices includes the tunnel top of the opencut tunnel and the top plate of the opencut tunnel, and the video monitoring devices are linked to the monitoring center in a wired transmission mode; the collector part is connected with the acceleration sensors and linked tothe monitoring center through a communication network, and a monitoring center system includes an intelligent monitoring application server and a data server and is used for monitoring storage of dataand early warning information and pushing client side data. The problem is solved that it is difficult to evaluate the damage of the opencut tunnel since the structure of the opencut tunnel and the structure of a top cushion layer of the opencut tunnel are diversified.

The invention relates to a liquid level seal connector and an underwater connection signal transmission and air guide method thereof. The connector comprises a cable. One end of the cable is sleeved by a casing cap. The front end of the casing cap can be sleeved in a sensor casing body of a transmitter sensing part. A first sealing device is arranged at the joint of the casing cap and the sensor casing body. A second sealing device which is used for sealing the cable and the casing cap is arranged on the tail end of the casing cap. A plug of a connector is arranged in the casing cap. The plug is connected with the cable. The socket of the inserter is arranged in the sensor casing body and is connected with a transmitter signal line, so as to form an integral connector structure. According to the invention, the casing cap is sleeved in the sensor casing body; the transmitter sensing part, the cable and a power supply can be flexibly separated, which is convenient for replacement and maintenance; through first and second sealing devices, the casing cap and the sensor casing body are sealed to form a cavity; the cable, the plug and the socket are arranged in the cavity and are effectively isolated from an external medium; and the liquid level seal connector has the advantages of good sealing effect, high protection degree and great reliability.

The invention discloses a method for judging the position of a failure cell in an energy storage type sodium-sulfur cell module. The energy storage type sodium-sulfur cell module consists of a plurality of sub-loops which are sequentially connected in series; each sub-loop is formed by connecting a plurality of sodium-sulfur cell series-connection units with one another in parallel; each sodium-sulfur cell series-connection unit is formed by sequentially connecting a plurality of single sodium-sulfur cells in series; and the position of the sodium-sulfur cell series-connection unit in which the failure cell is located is judged by comparing the comparison voltage of each sodium-sulfur cell series-connection unit and the variation rate of the end voltage of each sodium-sulfur cell series-connection unit. According to the method provided by the invention, the quantity of voltage collection wires led out from a thermal insulating box is greatly reduced on the premise of ensuring that the position of the failure cell is accurately judged, so that the wiring manner is relatively sensitive, a heat radiation channel of the thermal insulating box is reduced, and the thermal insulating box keeps a constant temperature. Meanwhile, the volume of data collected by a cell management unit is further greatly reduced, and system resources can be saved.

The invention discloses a ceramic lining plate of a power module. The ceramic lining plate comprises a first metal layer, a second metal layer and a third metal layer which are sequentially arranged from top to bottom, wherein a first ceramic layer is arranged between the first metal layer and the second metal layer, a second ceramic layer is arranged between the second metal layer and the third metal layer, the first metal layer is configured to be an emitter region and a control signal terminal region which are isolated with each other, the second metal layer is configured to be a collectorregion, the second metal layer also can further extend to an upper surface of the first ceramic layer via a through hole, grooves are formed in an upper surface of the lining plate along a thickness direction and are respectively used for installing a first power chip and a second power chip, and the grooves extend to the first metal layer from the first metal layer. By the ceramic lining plate, the technical problems that a circuit interconnection structure of the ceramic lining plate of an existing power module is large in stray inductance, a welding tool is needed to be used during chip welding, a metal liner on a front surface of the lining plate is a combination layer of strong electricity and weak electricity and interconnection between the lining plates is relatively complicated canbe solved.