182results about How to "Stable mechanical structure" patented technology

The invention is directed to a rechargeable battery pack for an electrical load with the load being connected to the rechargeable battery pack by a connection cable. A housing of the rechargeable battery pack has an inner space for accommodating a large number of rechargeable individual cells which are electrically connected to one another and supply the load via the connection cable. To provide the housing with a high level of stability, provision is made for the receiving space in the housing to be subdivided into individual receptacles by partition walls. A cell pack includes a predefined number of the individual cells and is arranged in a corresponding individual receptacle. Each cell pack forms an independent unit which is held in the individual receptacle. The individual cells of a cell pack are electrically and mechanically connected to one another by cell connectors.

The invention relates to an intelligent explosive ordnance disposal robot. The intelligent explosive ordnance disposal robot comprises a vehicle body and driving systems which are symmetrically arranged on two sides of the vehicle body, wherein an operating system and a control system are further arranged on the vehicle body, and the control system is respectively connected with the driving systems and the operating system; the operating system comprises a waist joint system movably connected with the vehicle body, a shoulder joint system movably connected with the waist joint system, a mechanical arm system movably connected with the shoulder joint system and an end actuator arranged at the end of the mechanical arm system, wherein a panoramic camera system is further movably connected onto the shoulder joint system and a binocular vision system is further arranged on the mechanical arm system. The intelligent explosive ordnance disposal robot can acquire surrounding environment information, information is transmitted and commands are received in real time through the control system, the function of controlling the operating system to realize grapping is realized, the mechanical structure is stable, the stability during running and obstacle surmounting is improved, the explosive ordnance disposal process is enabled to be quicker and safer, and the explosive ordnance disposal efficiency and safety are improved.

In an upright CT scanner, an X-ray source and a two-dimensional digital X-ray detector are mounted on a rotating platform with a vertical axis of rotation. During scanning, the X-ray source and the detector are on opposite sides of the rotational axis for orbiting about a body to thereby scan it with pyramid-shaped X-ray beam. During scanning, the source and detector can be jointly translated along a horizontal axis that is perpendicular to the rotation axis and parallel to the detector surface, to scan a specific part of a body that is not centered or a body that is too large. The mounting height and distance of source and the detector can also be adjusted.

Support structures for semiconductor devices and methods of manufacturing thereof are disclosed. In some embodiments, the support structures include a plurality of support members that is formed in a substantially annular shape beneath a wire bond region. The central region inside the substantially annular shape of the plurality of support members may be used to route functional conductive lines for making electrical contact to active areas of the semiconductor device. Dummy support structures may optionally be formed between the functional conductive lines. The support structures may be formed in one or more conductive line layers and semiconductive material layers of a semiconductor device. In other embodiments, support members are not formed in an annular shape, and are formed in insulating layers that do not comprise low dielectric constant (k) materials.

The invention relates to a design method used for transmitting DC high-temperature superconducting cable body coaxially and bidirectionally, belonging to the field of power system transmission and transformation; the design method comprises the steps as follows: according to the mechanical characteristic and the radius of enwinding framework of the superconducting strips, parameters of the superconducting cable body such as the enwinding helix angle and the enwinding pitch are determined; the magnetic field distribution of all layers of superconducting cable body are determined according to the operation current, thus determining the critical current on all layers of the cable; according to the critical current and the operation redundancy, iterative calculation is carried out for operation current and the magnetic field, thus finally gaining the critical current, best operation current, enwinding layer number and number of the cables. The designed superconducting cable body increases no enwinding process difficulty and achieves bidirectional transmission of DC current; the utilization ratio of the superconducting strip critical current reaches more than 90%; the quantity and low-temperature heat loss of the superconducting cable low-temperature container are respectively reduced by half. The design method has the advantages of large transmission capability, no loss, compact structure, certain current limiting capability, stable mechanical structure, self-shielding, no electromagnetic interference and the like.

A Multi-Line Phase Shifter (MLPS) for a vertical beam tilt-controlled antenna is provided, in which a housing is shaped into an elongated rectangular box, a fixed plate is attached on an inner bottom surface of the housing and has transmission lines printed thereon, the transmission lines forming part of a plurality of phase shifting patterns and a plurality of signal division patterns, for dividing an input signal and shifting phases of divided signals, and a mobile plate is installed within the housing, movably along a length direction at a position where the mobile plate contacts a surface of the fixed plate, and has transmission lines printed thereon, the transmission lines forming a remaining part of the plurality of phase shifting patterns for phase shifting by forming variable lines through coupling with the part of the plurality of phase shifting patterns.

The invention relates to a birdcage coil for a magnetic resonance imaging system and a tuning method thereof. The birdcage coil comprises an upper annular conductor, a lower annular conductor and a plurality of linear conductors which are distributed on a cylindrical surface, wherein the linear conductors are connected between the upper annular conductor and the lower annular conductor. A plurality of capacitors are connected in series in the upper annular conductor and the lower annular conductor. The whole or a part of the linear conductor is flexibly bendable and deformable. The distance between the upper annular conductor and the lower annular conductor is changed when the degree of bending deformation of the linear conductor is adjusted so that the resonant frequency of the birdcage coil is changed. The resonant frequency is adjusted by changing the position of a debugging ring. Thus, an expensive adjustable capacitor device is replaced so as to reduce the cost of the birdcage coil. The birdcage coil can be easily debugged at the installation site of the magnetic resonance system. The structure of the whole birdcage coil is adjusted synchronously and a large tuning range is achieved. The distribution of coil current and the uniformity of an RF magnetic field inside the coil are not influenced. The birdcage coil is stable in mechanical structure and can withstand high voltage.

The invention discloses a full-open permanent magnet for MRI, wherein the permanent magnet comprises: full-open main structure of a rectangular structure composed of two vertical yokes arranged left and right symmetrically and two transverse yokes arranged up and down symmetrically with an air gap zone of the permanent magnetic positioned in the middle of the full-open main structure; up and down two parallel opposite main poles which are respectively arranged on the sides close to the air gap zone of and connected with the up and down two transverse yokes; and up and down two parallel opposite pole plates which are respectively arranged on the sides close to the air gap zone of and connected with the up and sown two main poles. The invention enormously reduces the weight of the yokes, improves the shimming efficiency and increases the openness of the magnetic field.

An encapsulated circuit device has a substrate, components configured on a substrate surface portion of a component side of the substrate, an encapsulation, at least one electrical contact having an outer portion projecting out of the encapsulation and an inner portion provided in the circuit device that is electrically connected to the substrate. The encapsulation includes a rigid outer encapsulation, which extends completely around the substrate, the components and the inner portion of the at least one electrical contact, as well as a compressible deformation absorption layer, which is provided between the components and the outer encapsulation and at least completely covers the substrate surface portion on which the components are configured.

The wiring substrate includes a cavity and a plurality of metal leads disposed around the cavity. The metal leads are bonded with a resin compound and provide horizontal and vertical routing for a semiconductor device to be disposed in the cavity. The resin compound fills in spaces between the metal leads and surrounds the cavity and provides a dielectric platform for a re-distribution layer or a build-up circuitry optionally deposited thereon.

The invention relates to a 1.3-centimeter-waveband dual-polarized refrigeration receiver dewar used for observing molecular spectra lines, pulsar and VLBI (very long baseline interferometry) in the radio astronomy. The receiver dewar consists of a dewar cavity, a shielding cover, a microwave window, a frame carrier, a support, a ring-shaped fixing frame, a soft connector, a feed source, a transition waveguide, a circle and square converter, a polarizer, a low-noise amplifier, a waveguide coaxial converter, an isolator, a semi-rigid coaxial cable, a microwave window sealing film, a microwave window fastening ring, an air-filled cavity, an air-filled cavity sealing film, an air-filled cavity fastening ring, an air cylinder and a refrigerator. The 1.3-centimeter-waveband dual-polarized refrigeration receiver dewar with high sensitivity has the advantages that the design scheme is more reasonable, good sealing performance is ensured, internal devices can be well fixed and supported, the refrigeration effect is more excellent, the stability is better, the sensitivity is higher, and the thermal radiation can be effectively isolated, thereby being capable of being better applied to high frequence radiation characteristic study of molecular spectra lines and pulsar and radio astronomy observation of VLBI.

The invention relates to a biaxial numerical control machine tool correction positioning implementation method and system based on a counterpoint platform. The counterpoint platform is arranged on a working platform of a biaxial numerical control machine tool. A first workpiece is arranged on the working platform, and a second workpiece is arranged on the counterpoint platform. The method includes the steps that the first actual position of the first workpiece and the second actual position of the second workpece are collected; the rotating deviation of the second workpiece relative to the first workpiece is worked out through a processor of the biaxial numerical control machine tool; the counterpoint platform conducts moving and rotating according to the rotating deviation. The invention further relates to a biaxial numerical control machine tool correction positioning system based on the counterpoint platform. The system comprises an image collection module, a processing module and the counterpoint platform. By the adoption of the biaxial numerical control machine tool correction positioning achieving method and system based on the counterpoint platform, the difficulty in correcting the two workpieces simultaneously is lowered, processing efficiency and accuracy are improved, and the system is stable in work performance and high in reliability and has the wider application range.

The invention discloses a semi-automatic rotary riveting fixture and a riveting method thereof, and belongs to the technical field of riveting fixtures. The semi-automatic rotary riveting fixture disclosed by the invention comprises a pressing machine, an upper die, lower dies, a material taking unit and an electronic control unit, wherein the upper die is connected with the pressing machine, an indexing unit is arranged below the upper die, the indexing unit comprises a pneumatic divider and an indexing disc, and the pneumatic divider drives the indexing disc to rotate in a horizontal direction; a plurality of the lower dies are provided, and are movably arranged on the indexing disc at an equal interval; the material taking unit is arranged at the side of the indexing unit, and is used for absorbing the riveted parts; and the electronic control unit is used for controlling the mechanisms to cooperatively act. According to the semi-automatic rotary riveting fixture and the riveting method thereof which are disclosed by the invention, two or more parts can be riveted in one process, the three steps of loading, riveting and material taking are completed simultaneously, and only the upper die and the lower die need to be replaced if different parts need to be replaced for riveting due to a creative modularized design, thus the use range of the equipment is expanded, and the working efficiency is increased.

The invention relates to a frictional full-automatic high-speed online dynamic balance system and control method thereof, belonging to the field of precision super precision process and atomization. A balance head mechanical device of said online dynamic balance system uses symmetrical structure design. The core is two left-right symmetrical rectified balance rings and drive implementing mechanism thereof. The balance head mechanical structure is particularly reliable and simple. In design of the said dynamic balance system controller, a high-functional digital signal processor is chosen as core processor which has a high data processing speed and precision. The processor ensures balance shorter dynamic balance time and greater effect. The doable control method of said dynamic balance system and effective data processing arithmetic enables the entire system more improved. This invention makes important significance for the high-speed precision super precision process.

The invention discloses a jump catch clamp, an integrated tool for jump catch riveting and flanging and a machining method thereof, and the jump catch clamp is a special clamp. The tool disclosed by the invention comprises an upper die, a guide post, a guide post spring, a base plate, sliding block assemblies, a first lower die upright post plate and the jump catch clamp, wherein the guide post is serially connected to the upper die, the first lower die upright post plate and the base plate; the guide post spring is arranged on the guide post in a penetrating manner; the jump catch clamp can be inserted in a drawer groove in the middle part of the base plate; the sliding block assemblies capable of moving horizontally are arranged on the left side and the right side of the jump catch clamp; a riveting punch is arranged on the side, close to the jump catch clamp, of each sliding clock assembly, and an inclined wedge surface is arranged on the other side of each sliding block assembly; an inclined pressing block is arranged above each inclined wedge surface; the inclined pressing blocks are connected with the upper die; and the inclined pressing blocks are provided with inclined wedge surfaces matched with the inclined wedge surfaces of the sliding block assemblies. The jump catch can be assembled at a time, the riveting and flanging quality is reliable, and the production efficiency is improved.

The invention discloses a landing buffering device for an unmanned aerial vehicle. The landing buffering device comprises an outer bag and an inner bag which is composed of an inflation framework. After being inflated, the inflation framework of the inner bag comprises four cylindrical main air columns in the same shape, the top surfaces of the main air columns are located on the top plane, and the bottom surfaces of the main air columns are located on the bottom plane. The main air columns are connected through side air columns and the projections of the side air columns on the top plane are distributed along the sides of a rectangle. The outer bag is used for wrapping the inner bag and is in a rectangular solid shape or a cube shape after being inflated, the height of the outer bag is larger than or equal to that of the main air columns, and the projection of the outer bag on the top plane covers the projections of the main air columns and the side air columns. The landing buffering device for the unmanned aerial vehicle can be in a fixed square shape after being inflated, the fixed shape of the unmanned aerial vehicle can be guaranteed in the landing process of the unmanned aerial vehicle, even though the unmanned aerial vehicle is affected by air resistance, the unmanned aerial vehicle does not impact on the ground directly, and therefore the good unmanned aerial vehicle protection effect can be achieved.

The invention discloses an aircraft fuel measuring and controlling system with a self compensation capacitance type level sensor. The system comprises a measuring circuit and the self compensation capacitance type level sensor comprising an electrode AA, an electrode AB, an electrode BB and an electrode CC; during measurement, the electrode AA is grounded and serves as an external electrode for measuring the capacitance, the electrode BB and electrode CC serve as internal electrodes, and aircraft fuel medium is capable of entering the cavity between the electrode AA and the electrode AB. A processing chip of the measuring circuit is provided with a capacitance compensation relationship (img file = 'DDA0000612921630000011.TIF' wi = '336' he = '126' / ), and the height h of the measured level can be calculated through a capacitance compensation ratio K. By the aid of the capacitance type level sensor, influence caused by temperature and medium change and fuel dielectric constant change can be eliminated, and the complex process of repeated calibrations is reduced.

The invention discloses a method for enabling a spacebar to have a mouse key function. When the fact that any key except the spacebar in a keyboard is pressed down is detected, the spacebar is knocked to play the spacebar function; when the fact that the mouse pointer moves is detected, the left half part of the spacebar is pressed down to play the function of the mouse left key, and the right half part of the spacebar is pressed down to play the function of the mouse right key; and when the fact that the mouse pointer never moves to exceed some preset time value is detected, the spacebar is knocked to play the spacebar function.

The invention discloses a novel structure for a polyethylene reinforced compound pipe and belongs to the technical field of pipes. The novel structure for the polyethylene reinforced compound pipe comprises a substrate pipe, a metal reinforced layer, a fiber reinforced layer and an outer wall, wherein at least one metal reinforced layer and at least one fiber reinforced layer are arranged; specially used glues are heated and are used for integrally adhering the substrate pipe to the fiber reinforced layer, adhering the fiber reinforced layer to the metal reinforced layer and adhering the metal reinforced layer to the metal reinforced layer; the fiber reinforced layer is arranged at an equidistant interval, in the form of forming an inclined angle of 0-10 degrees between the fiber reinforced layer and the axial line of the pipe; an inclined angle between the metal reinforced layer and the axial line of the pipe is 54-70 degrees; the metal reinforced layer has a steel wire bidirectional crossed wound structure; the steel wire is a spring steel wire; and the diameter of the steel wire is 0.3-2.5 millimeters. The novel structure for the polyethylene reinforced compound pipe has the advantages of reasonable structure design, strong wear-resisting decay resistance and high loading capacity. Compared with a traditional pipe, the novel structure for the polyethylene reinforced compound pipe has the advantages that the loading capacity of the pipe is increased by 2-3 times, a steel pipe in a specific application field can be replaced by the polyethylene reinforced compound pipe, the application range is wide and the service life is long.

The invention discloses a synchronous rectification driving circuit suitable for central tapped structure rectifying circuit, comprising a high frequency transformer T1, a current transformer CT1, an output capacitor C1, an output capacitor C1, a synchronous rectifying tube SR1, a synchronous rectifying tube SR2 and a driving circuit for driving the synchronous rectifying tube SR1 and the synchronous rectifying tube SR2, wherein the current transformer CT1 has two primary side windings N1, N2 and one secondary side winding N3, which can drive two synchronous rectifying tubes. The favourable effects of the invention are as follows: 1, it only needs one currant transformer and one secondary side winding to realize the driving of two SRs so as to simplify the circuit and reduce the cost; and thus it is good for the high frequency and integrated development; 2, it is able to realize supplying power by itself of the driving circuit; the driving is simple; 3, it reduces the driving power consumption of the synchronous rectification, improves the light loading efficiency, reduces the loss and lowers the cost.

The present invention provides a solution to how an antenna of the Patch or PIFA type can be made from a sheet metal in order for thereafter to be mounted on a printed circuit board with particularly formed mounting areas in order to provide both an inexpensive but yet robust and efficient antenna solution.

The invention relates to a carbon fiber graphite grounding connector which comprises carbon fibers, wherein the carbon fibers are glued into one row through first conductive glue; a puffing furnace is used for puffing graphite into graphite worms; the graphite worms are respectively compounded on upper and lower sides of the carbon fibers, and then the carbon fibers are pressed to form graphite paper; the graphite paper is cut into strips and then the strips are rolled, so that the graphite lines are prepared; the mass ratio of the graphite to the carbon fibers to the conductive glue is (77-83):(10-12):(0.5-1.5); the carbon content of the graphite is more than or equal to 99.9%; the graphite lines are arranged in parallel so as to form a line core; the graphite lines are weaved into a weaved conductive layer on the periphery of the line core. The carbon fiber graphite grounding connector provided by the invention has excellent conductivity and surge current tolerance, reliable corrosion resistance, stable mechanical structure, high thermal stability, convenience in transportation and construction and high soil compactness.

The invention relates to an equipment transferring obstacle overcoming vehicle, and belongs to the technical field of mechanical transportation equipment of electric equipment. The vehicle comprises a frame-shaped rack, supporting legs which are arranged on the rack and can ascend and descend, a horizontal sliding device arranged on the rack and a lifting suspension device which is arranged on the horizontal sliding device and used for lifting and suspending equipment to be transferred. The equipment transferring obstacle overcoming vehicle is stable in mechanical structure and excellent in weighing performance; the height of the supporting legs can be adjusted, and therefore the supporting legs can adapt to different work environments and can stably overcome obstacles to achieve the equipment transferring aim. The lifting suspension device can fix the equipment to be transferred and then lift and suspend the equipment, and then the whole equipment is promoted to be transferred.

The invention relates to a dismounting, mounting and transferring device for a transformer, and belongs to the technical field of mechanism transportation equipment for power equipment. The device comprises a rack, liftable supporting legs mounted on the rack, a horizontal sliding device arranged on the rack, and a lifting suspending device arranged on the horizontal sliding device; a lifting ring is arranged at the bottom part of the lifting suspending device. The device is stable in mechanical structure, and outstanding in weighting performance; the height of the supporting legs can be adjusted to adapt to different working environments; the lifting suspending device can lift the fixed transformer and then pushes the whole device to transfer.

The multi-cavity UHF dielectric filter with several connected dielectric blocks is one kind of electronic device. The UHF dielectric filter consists of printed circuit board, dielectric filter and shielding casing. The dielectric filter is welded to the printed circuit board, and the shielding casing has its upper plane welded on ground electrode, front side bottom edge welded to the ground of the printed circuit board, and rectangular through holes. Owing to the shielding casing, the UHF dielectric filter has high interference immunity and easy electric performance regulation.

A nonimaging beam combiner and collimator. The nonimaging beam combiner and collimator can include at least two light sources (110, 130) that emit light of the same wavelength (142, 144) through a focus point (150) and a nonimaging element (160) that receives the light of the same wavelength after the focus point and collimates the light at the same wavelength through the atmosphere. The at least two light sources (110, 130) can include fiber light sources, optical fibers, gradient index lenses, fiber lasers or laser diodes. The nonimaging element (160) can include an input surface (165), a paraboloid surface located adjacent to the input surface, a conical surface located adjacent to the paraboloid surface, and an ellipsoid surface located adjacent to the conical surface and located on an opposite side of the nonimaging element (160) from the input surface (165). The paraboloid surface can include a total internal reflection surface.

The invention discloses an organic / metal nanowire heterojunction, as well as a preparation method and application thereof. Due to the self assembly process of organic molecules in liquid phase, metal nanowires dispersed in the liquid phase are embedded therein, so the organic / metal nanowire heterojunctions of different structures are obtained. The preparation method provided by the invention is simple in process, convenient to operate, low in cost and wide in application, can be used for massive preparation and is environment-friendly. The organic / metal nanowire heterojunction obtained by the method has a smooth surface, a medium waveguide and a metal silver nanowire can be very tightly combined together, very high coupling efficiency of photons and surface plasmon polaritons is achieved, the problems that the surface of the composite material, prepared by the previous method, is unsmooth, the contact area between metal and a medium is small, the integral mechanical structure is unstable and the like are solved, and the method can be used for preparing nanophotonics elements such as a photonics multiplexer or a nano optical sensor.

The invention discloses a system and method of mobile sun tracking based on Beidou, wherein the system of mobile sun tracking system based on Beidou comprises a detection and control device and a mechanical execution device; the detection and control device comprises a battery panel electronic gyroscope MPU, a Beidou positioning chip, a vehicle electronic gyroscope MPU, a rainwater sensor, a clockmodule and a RISC processor module; the mechanical execution device comprises a spinning platform, two connecting rod pitching mechanisms, a solar cell supporting plate and a frame. The system can beused for mobile scenes such as vehicle-mounted or ship borne, can also be used for a stationary scenes for fixed tracking, and can be used for a scene where movement and stillness happen alternatelywithout and switching operations. The mobile sun tracking system based on Beidou can automatically identify the scene and switch the different tracking modes.

The invention is suitable for the technical field of building and decoration, and provides a production method of a hollow aluminum-plastic panel. The production method comprises the following steps: injecting a plastic particle raw material into an extruder for plasticizing to obtain a plastic hot melt; pushing the plastic hot melt into a hollow panel die; extruding the plastic hot melt from an outlet of the hollow panel die; cooling and setting the extruded plastic hot melt through a vacuum setting device to obtain a hollow plastic panel; dragging out the hollow plastic panel through a traction device; thermally treating the hollow plastic panel through a heating device; covering a glue film and an aluminum film on the upper surface and the lower surface of the thermally treated hollow plastic panel; and then performing laminating forming through a heating laminating device, and cooling to obtain the hollow aluminum-plastic panel. According to the hollow aluminum-plastic panel provided by the invention, the adhesion degree of the aluminum film and the inner layer hollow plastic panel is high, and the whole mechanical structure is stable and hard to deform.