2008results about How to "Small structure size" patented technology

An apparatus having an optical structure, ridges and an electrostatic actuator with a cantilever electrode is described, wherein the ridges connect the optical structure to a supporting structure and the electrostatic drive is implemented to deflect the optical structure.

Device and method for generating brief strong current pulses in a coil for generating magnetic field pulses which according to the electromagnetic induction principle induce stimulation currents in the body tissue triggering an action potential of the nerve and/or muscle cells, where the coil is positionable close to the body tissue to be stimulated so that its magnetic field passes through the body tissue, and where the device comprises a power generating unit that can generate a freely selectable temporal course of the current through the coil during the current pulse. A method for determining an optimized temporal course of a brief strong current pulse through the coil, where the temporal course of the current pulse is calculated using a method which numerically simulates the electrical behavior of nerve and/or muscle cells and the coil and optimizes the course of the current pulse regarding at least one parameter, or which by means of stimulating the nerve and/or muscle cells with predetermined current pulses optimizes the temporal course of the current pulse regarding at least one parameter and therefrom determines essential parameters of nerve and/or muscle cells.

PCT No. PCT/EP97/06344 Sec. 371 Date May 20, 1999 Sec. 102(e) Date May 20, 1999 PCT Filed Nov. 13, 1997 PCT Pub. No. WO98/23868 PCT Pub. Date Jun. 4, 1998A microvalve has a base element provided with a passage opening, a tappet, a suspension device for guiding the tappet, and a piezoelectric actuator for actuating the tappet. The suspension device guides the tappet relative to the base element in such a way that the passage opening can be closed or opened by the tappet. The longitudinal dimensions of the piezoelectric actuator can be changed by the application of an electric voltage. Longitudinally spaced ends of the piezoelectric actuator are connected to longitudinally spaced ends of the suspension device in such a way that the suspension device provides a way for mechanical translation between the actuator and the tappet. A change in the longitudinal dimensions of the piezoelectric actuator caused by the application of an electric voltage to the piezoelectric actuator is mechanically translated by the suspension device into a movement of the tappet essentially at right angles to the longitudinal direction so that the passage opening will be opened or closed. In addition, the suspension device is secured to the base element with the aid of a hinge-like element. At least two spaced points are used to secure the suspension device to the base element.

An optical transceiver 10 includes an optical device 16 which is provided upon a substrate 11, an optical connector 14 which is connected to an optical fiber 15a, and a connector holder 13 for optically connecting together the optical device and the optical connector 14. The connector holder 13 includes an engagement means 13c which holds the optical connector 14. The engagement means 13c holds the optical connector 14 when the optical connector 14 is pressed in towards the substrate. The optical connector 14 supports the optical fiber 15a so that the optical axis of the optical fiber 15a subtends a fixed angle with respect to the optical axis of the optical device 16. And the optical connector 14 includes a mirror 14g for optically connecting between the optical device 16 and the optical fiber 15a.

The present invention discloses an antenna structure. The antenna structure is used for taking ad a base shell and comprises a metal floor, a metal frame, a feeding port, a matching circuit, a resonance circuit and a parasitic branch knot. A slit with a width in the range from 0.5mm to 3mm is arranged between the metal floor and the metal frame; the feeding port is electrically connected with the metal floor and is electrically connected with the metal frame through the matching circuit; and one end of the parasitic branch knot is electrically connected with the metal floor through the resonance circuit. The antenna structure is able to realize multi-band frequency work, and is small in size and required space and high in practicality. The present invention further discloses a mobile terminal with the antenna structure.

The present invention is directed to a storage container for at least one portable electronic apparatus including a circumferential side wall and a bottom wall connected thereto for forming a main receiving space of the storage container as well as a lid construction for closing the main receiving space, wherein at least one additional receiving space accessible from the outside and substantially closed with respect to the main receiving space is formed in the lid construction.

The invention discloses a hydraulic lifting device, and belongs to the field of ocean engineering. The device comprises a jacking frame sleeved on a pile leg, a fixed ring beam, a lifting cylinder, a moving ring beam, a plurality of first inserted pin modules arranged on the fixed ring beam, and a plurality of second inserted pin modules arranged on the moving ring beam, wherein both ends of the lifting cylinder are respectively connected with the fixed ring beam and the moving ring beam; one end of the jacking frame is connected with the fixed ring beam, and the other end of the jacking frame is provided with a connecting structure for detachably connecting with a ship body. The jacking frame and the ship body are detachably connected, so that the hydraulic lifting device is simple in connection and convenient to detach; and the lifting device is compact in inner structure, small in size of integral structure and convenient to transport integrally; the hydraulic lifting device is directly assembled with the ship body after reaching the destination; and all structures inside are not required to be assembled again, so that the work load is reduced.

The invention provides a hybrid type rapid direct current breaker, comprising: a main flow branch, a current transferring branch and an energy consumption branch. All are connected in parallel. The main flow branch comprises a rapid mechanical switch unit and a main branch sub-module unit. The two units are in series connection. The current transferring branch comprises valve module units in successive cascade connection with each valve module unit comprising a plurality of semiconductor modules in series connection. The energy consumption branch comprises energy consumption components in successive cascade connection. According to the invention, the design of the breaker structure is such a design featuring the electrical topology corresponding to modularization. This means that for the application requirement of different voltage grades, the structure can be expanded to do so. As the breaker adopts a single platform supporting structure, all functional units can be integrated onto the platform, therefore, making the equipment highly integrated, small in size, and strongly resistant to earthquakes. Highly reliable and flexible in structure, better electric compatibility can be achieved. With the breaker, it is possible to rapidly cut off the current in fault when the direct current system meets a fault.

The invention discloses a ray pectoral fin-imitated piezoelectric coupling propulsive mechanism. The ray pectoral fin-imitated piezoelectric coupling propulsive mechanism comprises a crankshaft, guide rods, a swinging block, a piezoelectric compound fin, a fish body pedestal, a crankshaft support, a driving motor, a battery pack and a main control panel, wherein the crankshaft is arranged on the crankshaft support; the swinging block comprises a pin shaft and a swinging block support; the pin shaft is arranged on the swinging block support; the crankshaft support and the swinging block support are fixedly arranged on the fish body pedestal; one of the guide rods is arranged between one end of the swinging block and the crankshaft; the driving motor and the crankshaft are connected through a gear; the piezoelectric compound fin is arranged at the other end of the swinging block; the battery pack can provide a direct current power source; the main control panel is electrically connected with the piezoelectric compound fin; the crankshaft is a four-turn crankshaft; the guide rod is arranged on each turning shaft of the four-turn crankshaft. The ray pectoral fin-imitated piezoelectric coupling propulsive mechanism can reduce the structural size, the weight of the fish body, and can realize chordwise fluctuation propulsion.

A three-finger mechanical gripper with a variable structure relates to a three-finger mechanical gripper and solves problems of large size, high maintenance cost and gripping structural limitation of the whole gripper in the present three-finger mechanical gripper. Three rotating shafts are evenly distributed on a rotating pedestal; an output shaft of a motor on the bottom end of each finger is fixedly connected with a corresponding worm rod; each worm rod is engaged with a corresponding worm gear; each small straight gear is engaged with a large straight gear; an output shaft of each finger joint motor is fixedly covered with a coupling connection rod; one end of the coupling connection rod is connected with the tail end of a short side of a second joint via a first driving rod; the other end of the coupling connection rod is connected with one end of a second connection rod and one end of a first connection rod via a second driving rod; the other end of the first connection rod is connected with the second joint; and the tail end of the long side of the second joint and the other end of the second connection rod are both connected with a first joint. The three-finger mechanical gripper with the variable structure can be applied to the technical field of robots.

The invention belongs to the field of broadband reconfigurable micro-strip antennas and particularly relates to a mobile phone antenna with a reconfigurable directional diagram. The mobile phone antenna with the reconfigurable directional diagram is used for receiving and transmitting wireless signals in communication devices such as a mobile phone and an ISM communication device. The mobile phone antenna with the reconfigurable directional diagram is composed of two medium substrates, four bending-shaped passive vibrators, four horizontal straight passive vibrators, six switches, two dipole excitation vibrators, two perpendicular parasitic vibrators, a balancer and a coaxial feeder. The first bending-shaped passive vibrator, the first horizontal straight passive vibrator, the second horizontal straight passive vibrator and the second bending-shaped passive vibrator are sequentially connected together to form a first connecting structure through the switches. The third bending-shaped passive vibrator, the third horizontal straight passive vibrator, the fourth horizontal straight passive vibrator and the fourth bending-shaped passive vibrator are sequentially connected together to form a second connecting structure through RF-PIN switches. The antenna is small in SAR value, low in radiation, high in efficiency, simple in structure, convenient to machine and low in cost.

Disclosed in the invention is a dynamic entropy probe comprising a rectifying cover, a static vent, a first high-frequency response pressure sensor, a hotline hole, a total pressure tube, a rectifying cover hole, a pressure guiding tube, a second high-frequency response pressure sensor, a pressure sensor support, a hotline, a hotline support and a semi-infinite long flexible tube. According to the dynamic entropy probe, the flowing total pressure, static temperature and velocity can be measured dynamically, thereby obtaining the local entropy. Because the obtained entropy is the physical parameter for measuring the most reasonable internal flowing loss, the weight on the efficiency influence by the nonsteady flow loss and even the internal flow loss of the turbomachinery can be analyzed in a quantitative mode.

The invention discloses an antenna structure comprising a metal sheet case, a feed port, and a resonance circuit. The metal sheet case is in a rectangular shape; and a gap is formed in the position approaching one side, wherein the gap parallel to the side has the width of 0.5 millimeter to 5 millimeters. The feeding port is electrically connected with the metal sheet case. The two ends of the resonance circuit are connected with two sides of the gap of the metal sheet case. According to the antenna structure, multi-band working can be realized; because of the small size, the needed space is small; and the practicability is high. In addition, the invention also discloses a communication terminal having the antenna structure.

The invention relates to a mounting arrangement for optical devices having a mounting plate forming an undercut guide for receiving a clamping plate, the mounting plate comprising a side bar in which an undercut profile groove is formed, and having a strip located opposite the bar movably connected to the mounting plate via a clamping mechanism and a second undercut profile groove forming the undercut guide together with the first undercut profile groove, the strip being able to be tightened against the mounting plate by the clamping mechanism to fix the clamping plate, whereby the spacing distance between the undercut profile grooves is reduced. A second undercut guide is formed by additional undercut profile grooves in the same side bar of the mounting plate and the same strip, wherein the guides are both disposed on one side of the plane (X) spanned by the mounting plate.

The invention discloses a high-power heavy low seam mining machine, which comprises a machine body, a left traction part, a right traction part, a left cutting part, a right cutting part, a swinging arm elevating hydraulic system and an electric control system, wherein the electric control system comprises an electric control box and a controller; the left cutting part comprises a left swinging arm, a left roller and left cutting motors; the right cutting part comprises a right swinging arm, a right roller and right cutting motors; the left traction part comprises a left traction motor and a left traction transmission mechanism; the right traction part comprises a right traction motor and a right traction transmission mechanism; the left cutting motors, the right cutting motors, the left traction motor, the right traction motor and swinging arm elevating hydraulic system are controlled by the controller; and two left cutting motors and two right cutting motors are provided. The high-power heavy low seam mining machine has the advantages of reasonable design, high overall power, high mining efficiency, stable and reliable working performance and good using effect, and can be used for solving the problems of low power, low mining efficiency, poor using effect and the like existed in the conventional coal mining machine in the mining process of a low coal seam.

A vehicular lamp that is mounted on a vehicle has a light source, a transparent part that is transparent when viewed from inside of a compartment when mounted on the vehicle, a light guiding member that forms at least a part of the transparent part, wherein the light guide member is configured to guide light emitted from the light source toward outside of the compartment when mounted on the vehicle, and a light-shielding member that blocks the light emitted from the light source and that travels toward the inside of the compartment when mounted on the vehicle.