181results 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.

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.

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 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 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 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.

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.