49results about How to "Fix oversize" patented technology

The invention discloses a flat integrated harmonic speed reducer apparatus for a built-in electric motor, and aims to solve the problems of relatively large overall sizes of a speed reducer and a motor, and limited application range caused by the fact that the current motor is externally connected with the harmonic speed reducer generally. The flat integrated harmonic speed reducer apparatus comprises a front end cover, a back end cover, a motor stator, a stator coil, permanent magnetic steel, an integrated cam rotor, a first connecting bearing, a harmonic steel wheel, a flexible bearing, an integrated flexible wheel matched with the front end cover, and a crossed roller bearing, wherein the front end cover comprises an annular cover body, and a hollow connecting shaft connected with the annular cover body. According to the flat integrated harmonic speed reducer apparatus, the speed reducer cam and the motor rotor adopt the integrated design; the cam is directly driven by the motor rotor to turn, so that the equipment structure is effectively simplified, and the equipment cost is lowered; meanwhile, the apparatus adopts the flat design, so that the axial length of the speed reducer is effectively shortened; the phenomenon of insufficient axial installation space of the speed reducer can be solved; and the axial applicability of the product is improved.

The invention discloses a high common-mode rejection transmission line based on a double-layer half-mode comb-shaped substrate integrated waveguide. The high common-mode rejection transmission line comprises an upper dielectric substrate, a lower dielectric substrate, a middle metal layer, an upper HMCSIW transmission line, a lower HMCSIW transmission line, a rectangular metal gap and an artificial surface plasmon structure. The rectangular metal gap is etched in the middle metal layer, and an artificial surface plasmon structure of a plurality of fishhook-shaped metal strips which are distributed at equal intervals is arranged in the rectangular metal gap; wherein the upper HMCSIW transmission line and the lower HMCSIW transmission line are vertically overlapped and respectively comprisea rectangular metal sheet, two feed microstrip lines and a plurality of open circuit branches; the open circuit direction of each open circuit branch knot is opposite to the opening direction of the fishhook of the metal strip. The open-circuit branch knot can form an artificial surface plasmon, and when the input frequency is the cut-off frequency of the artificial surface plasmon structure, zerotransmission can be formed. The rectangular metal slot and the artificial surface plasmon structure can suppress a slot transmission mode, improve the high common mode rejection performance of the transmission line, and meet the actual requirements of a differential system.

This invention discloses a kind of electronic sphygmomanometer and its displaying technique: a sensor senses gasbag pressure signal and educe pressure value after operation process, and outputs the value to a displaying unit to display it by means of a simulated quicksilver column scale. Wherein, the scale is divvied into sections according to designed program, and the scale mark is set by pressure comparison and judgment. In this way, pressure values can be displayed by a subsection manner instead of a full and consistent long column shape. So liquid crystalline display screen of the sphygmomanometer can be smaller and cheaper, at the same time, the resolution ratio of this invention is enough to meet high accuracy need of the scale mark.

The invention provides a camera module comprising an integrated lens, a chip and an optical filter. The integrated lens is provided with a lens supporting part and an optical filter supporting part, the chip is directly disposed on the lens supporting part in the inner cavity at the bottom of the integrated lens, the optical filter is directly disposed on the optical filter supporting part in theinner cavity at the bottom of the integrated lens, and the optical filter and the chip are kept in parallel with the integrated lens. By adoption of the scheme, the conventional mode of packaging a gold wire and a capacitor in a support is broken through, the chip is directly embedded on the lens supporting part in the inner cavity at the bottom of the integrated lens, thereby ensuring the parallel situation between the lens and the chip, and meanwhile, after the lens and the chip are packaged, clear focusing is directly performed, therefore non-focus assembly is achieved. The distance betweenthe lens and the chip is directly controlled by both, thus eliminating a base and reducing the size.

The invention discloses a pile and cable combined platform and an application method adapting to tidal range changes of the pile and cable combined platform. The pile and cable combined platform adapts to the normal change of the water level through relative lifting movement of a pile foundation and a top platform, the pile and cable combined platform adapts to the acute change of water depth by paying off and winding up tension cables, the change range of the applicable water depth and tidal range of the top platform is widened, and the problem that under the limit that the design air gap of a large tidal range sea area platform is too large, the sizes of all piles in the pile foundation are too large is solved. Due to the fact that the free length and diameter of the piles are reduced, offshore construction cost can be correspondingly lowered, and the pile and cable combined platform is an open sea platform structural mode suitable for frequent windstorms, the large tidal range changes and the severe environmental conditions.

The invention provides an air bath control device which has a double-layer air bath structure that comprises an air pressure equalizing unit and an air releasing unit. The air pressure equalizing unitperforms pressure reduction on input air through a plurality of pipes for obtaining uniform-pressure air, and conveys the input gas to an edge through pipe. The air releasing unit comprises a plurality of air bath outlets, thereby releasing the uniform-pressure air through the air bath outlets, and forming thin-film air bath. The air bath control device provided by the invention has an ultrathinstructure and can be used in a compact space, thereby setting a problem of overlarge dimension of an existing air bath structure.

The invention discloses a CSIW transmission line based on mode conversion. The CSIW transmission line comprises a dielectric substrate, a top metal layer and a bottom metal layer, wherein the top metal layer and the bottom metal layer are respectively arranged on the upper and lower surfaces of the dielectric substrate. A plurality of open circuit branches are correspondingly arranged on one sideof each of the top metal layer and the bottom metal layer in the up and down manner. A long-strip-shaped gap is formed in one side, far away from the open circuit branches, of the top metal layer. A central conduction band is arranged on one side, far away from the open circuit branches, of the long-strip-shaped gap. The CSIW transmission line based on mode conversion has two transmission modes. Compared with a traditional CSIW, the overall size of the CSIW transmission line is reduced by nearly a half. Moreover, the bandwidth of the CSIW transmission line is wider, and the insertion loss andthe return loss of the CSIW transmission line are better.

The invention relates to the optical connector field, especially to an optical fiber contact module. The optical fiber contact module comprises a contact pin and an attached member. The contact pin has a pin housing; the attached member includes a connecting seat that is connected with the pin housing at the rear end of the pin housing; the connecting seat and the pin housing are connected by more than two guide pins; and the two ends of the guide pins are arranged at the pin housing and the connecting seat. According to the connector, the attached member includes the connecting seat connected to the pin housing at the rear end of the pin housing and the connecting seat and the pin housing are connected by more than two guide pins. Therefore, there is no need to arrange a special-purpose connecting structure at the outer side of the pin housing, so that the size of the attached member is reduced to the greatest extent; for example, the cross section dimension of the attached member can be equal to or even smaller than that of the pin housing. And thus, a problem of the too large size of the existing optical fiber contact module can be solved.

The present invention discloses a portable tail vertical excitation device. The portable tail vertical excitation device comprises a control system, a reaction system and a loading device. The loading device is connected with the control system and the reaction system; the loading device includes a drop hammer, a first balancing weight, a power device and second balancing weights; the first balancing weight is connected with the power device through wire ropes; two pulleys are respectively arranged at two side surfaces of the first balancing weight at intervals; a plurality of second balancing weights is arranged between the drop hammer and the first balancing weight, and a circular hole is arranged at the center of the second balancing weights and configured to a sensor; the drop hammer, the second balancing weights and the first balancing weight are fixedly connected in order; and the sensor and the control system are connected. The portable tail vertical excitation device is easy to carry, convenient for operation, reasonable in size of the test device and small in weight.

The invention discloses a method for realizing ultra-high precision circular inductosyn. The method for realizing the ultra-high precision circular inductosyn completes ultra-high precision small-angle indexing by a high-precision scribing device formed by a differential indexing system and a scribing processing system. The differential indexing system is composed of two multi-tooth indexing tables with different tooth numbers. The scribing processing system is composed of a high precision milling machine and a synchronizer scribing tool. According to the method for realizing the ultra-high precision circular inductosyn, small-angle rotation is provided through the differential indexing system, and the scribing processing system completes the circular concentricity of a synchronizer base plate and the winding processing to realize the processing of the high-precision circular inductosyn (the pole number is more than 720). The method for realizing the ultra-high precision circular inductosyn is convenient to operate, easy to realize and high in operability, is completed by relying on differential multi-tooth indexing technology and synchronizer high-precision scribing technology, solves the problem that the high-precision synchronizer winding cannot break through the limiting of 720 poles and the problem that the size is too large when the angle resolution of a single multi-tooth indexing table is high, and improves the precision grade of the circular inductosyn.

The present invention provides an optical acceleration sensor and an acceleration sensor system. The optical acceleration sensor comprises: a conductive optical fiber, wherein light waves are conducted in the conductive optical fiber; a semiconductor structure, wherein Bragg grating is etched on the semiconductor structure, and the semiconductor structure is aligned with the conductive optical fiber, modulates incident light waves, and then reflects back the modulated incident light waves to the conductive optical fiber; and a vibration assembly connected with the semiconductor structure and used for sensing the vibration of a measured object and transmitting the vibration to the Bragg grating. According to the invention, the semiconductor structure and the conductive optical fiber are arranged in a separated mode, and when packaging is needed, the semiconductor structure is directly packaged, so that the problems that the bending radius of the optical fiber is too small, and the size of the packaged sensor is too large are solved; and the semiconductor structure is more stable, so that the problems that the Bragg fiber grating is fragile and fragile, and high-frequency vibration signals cannot be measured are solved.

The invention provides a display substrate, a manufacturing method thereof and a display device, and belongs to the technical field of display, at least partially solving the problem that the frame size of an existing organic light emitting diode display panel is difficult to continuously shorten. The display substrate comprises a substrate body and a plurality of light-emitting elements arrangedon the substrate body. Each light-emitting element participates in forming a pixel or a sub-pixel; wherein the display substrate is provided with a display surface and a plurality of side surfaces connected with the display surface; the display substrate is divided into a middle display area and a plurality of edge display areas located on the outer side of the middle display area, each edge display area corresponds to one side face, the light-emitting elements in the middle display area are organic light-emitting diodes, and the light-emitting elements in at least one edge display area are micro light-emitting diodes.

The invention belongs to the technical field of electric drive axle assemblies, and particularly provides an electric drive axle assembly for an automobile and the automobile. The invention aims at solving at least one of the problems that an existing electric drive axle assembly for an automobile is small in output torque, and along with increase of the torque, the development difficulty is greatly increased, the service life of a gear and a bearing is shortened, the strength of a shell is reduced, the size of the electric drive axle assembly is too large, and frame suspension design is difficult. In order to achieve the purpose, the electric drive axle assembly comprises a first motor and a second motor, the first motor and the second motor are arranged in the middle of the electric drive axle assembly side by side along the X axis, and output shafts of the first motor and the second motor are parallel to the Y axis. Therefore, the Y-direction layout is optimized, the problem that an existing electric drive axle assembly is too large in size is solved, and then the electric drive axle assembly can be conveniently carried on an automobile frame chassis.

The invention discloses a broadband sleeve antenna for a portable terminal device, in combination with actual portable terminal device application, a broadband monopole sleeve antenna design based ona terminal structure body is provided under a condition that antenna structure size is limited, and an antenna band covers 225-678 MHz. In the design, conventional bandwidth broadening methods of adding lossy devices, such as a magnet ring, are discarded, and the design is realized through a sleeve structure and a helix loading mode, meanwhile, a spiral spring is designed to be roundabout so as torealize reduction of size, and a plurality of spiral radiators are connected in parallel under different thread pitches so as to realize broad band, thus, functions of a plurality of antennae can berealized by one antenna.

The invention discloses a 3D printing sand mould which comprises N layers of transverse sand mould blocks sequentially arranged up and down in a stacking manner; a contact surface between two upper and lower adjacent layers of transverse sand mould block is a transverse parting surface; N is a positive integer equal to or greater than 2; each layer of transverse sand mould blocks comprises M longitudinal sand mould sub blocks; a contact surface between two adjacent longitudinal sand mould sub blocks is a longitudinal parting surface; the longitudinal parting surface is perpendicular to the transverse parting surface; M is a positive integer equal to or greater than 2; a reserved groove is formed in the side walls, corresponding to the outer side gap of the longitudinal parting surface, ofthe two longitudinal sand mould sub blocks; the outer side gap of the longitudinal parting surface is positioned in the bottom of the reserved groove; after mould assembling, the reserved groove is used for being filled with clay sand or resin sand; and the longitudinal parting surfaces of two adjacent layers of transverse sand mould blocks are distributed in a staggered manner. According to the technical conception, through improving the sub block structure, sand removal, chill placing and assembling are facilitated, and runout is avoided.

The invention discloses a household intelligent ironing robot, relates to the technical field of clothes ironing, and aims to solve the problems that a large amount of traditional clothes ironing products depend on manual operation, the ironing function effect of nursing machine products is weak, and the daily ironing flatness requirement cannot be met. The steam ironing module is connected with the up-down driving mechanism and used for providing close-range targeted steam to soften and iron the clothes; the air blowing and sucking module is used for being matched with the ironing process and controlling the inflatable clothes hanger to blow and suck air; the main control system is connected with the steam ironing module and the air blowing and sucking module respectively, judges the type of ironed clothes according to different input signals, controls the air blowing and sucking module and the steam ironing module to carry out corresponding ironing processes, simulates manual ironing elements in a mode of mutual cooperation of software and hardware, achieves the effect close to manual ironing, liberates manpower, and is small in whole machine structure and convenient to operate. The device is small in space limitation, very suitable for household use and easy to popularize.

The invention relates to an electron beam device and a manufacturing method thereof. The electron beam device comprises a semiconductor substrate and a GaN/AlGaN composite layer on the surface of thesemiconductor substrate, wherein a cathode is arranged at one end of the GaN/AlGaN composite layer, and an anode is arranged at the other end of the GaN/AlGaN composite layer; and a modulation input end and a modulation output end are arranged between the cathode and the anode. Due to the fact that the GaN/AlGaN composite layer is made of a semiconductor material composed of crystal lattice atomswhich are arranged orderly, when voltage bias is applied between the anode and the cathode, the electron beams generated at the heterojunction interface of the GaN/AlGaN composite layer pass through the lattice atoms, and the drift speed is greatly limited, therefore, the operation distance of the electron beams in a period of time is correspondingly reduced, so that the size of the electron beamdevice can be greatly reduced, the miniaturization of the electron beam device is realized, and the problem that the size of a traditional electron beam device is too large is solved.