51results about How to "Achieve the effect of miniaturization" patented technology

The invention relates and belongs to the field of terahertz time-domain spectroscopy diagnostic technique, in particular to a terahertz spectrograph and a terahertz transceiver probe (b). (/b) The technical problems to be solved are as follows: the existing terahertz time-domain spectroscopy systems mostly adopt an off-axis parabolic mirror to implement the space transmission for terahertz pulses, and have complex structures, long optical paths and weak stability, so that the energy utilization rate of terahertz waves is low. Against the existing problems, the invention provides the terahertz spectrograph and the terahertz transceiver probe; laser emitted by a laser is converted to detection light and pump light through a terahertz converter; then, the detection light and the pump light output by the terahertz converter are received through the terahertz transceiver probe so as to implement the sample reflection type detection and transmission type detection to obtain sample spectral information. The problems of complex structure and large volume of the existing terahertz spectrographs in the prior art are solved. Further, the defects of large volume and low utilization efficiency of terahertz energy of the existing terahertz transceiver probes are solved. The terahertz spectrograph comprises the laser, the terahertz converter, the terahertz transceiver probe and the like. The terahertz spectrograph and the terahertz transceiver probe are applied to the terahertz spectral imaging and diagnose application fields.

The invention provides a high-isolation polarization diversity microstrip MIMO antenna for an intelligent terminal. The antenna is composed of a first antenna unit, a second antenna unit, and a dielectric substrate. The first antenna unit and the second antenna unit are orthogonally arranged and share the dielectric substrate. Each antenna unit consists of a printed monopole sub radiation patch, amicrostrip line and a metal grounding plate; the printed monopole sub radiation patch and the microstrip line are arranged on the upper surface of the dielectric substrate, wherein the diameter sideof the printed monopole sub radiation patch is parallel to the short side of the dielectric substrate and the microstrip line is arranged at the edge of the long side of the dielectric substrate and deviates from the center at a first preset distance; and the metal grounding plate is arranged a the lower surface of the dielectric plate right below the microstrip line and is aligned with two adjacent right-angle sides of the lower surface of the dielectric substrate. A signal line of a radiation system of a mobile terminal is connected directly with a feed microstrip line of the microstrip lineof each antenna unit. The MIMO antenna has advantages of having low manufacturing cost, being easy to process, being convenient to batched production, and having the great practical application value.

The present invention relates to an engine structure of a motor cycle. The engine is arranged on the rear of a descending pipe arranged on a cycle frame. The engine comprises a crank case, a cylinder body and a cylinder head, wherein the crank case consists of a left crank case and a right crank case, a crank, a main shaft, an output shaft and an engine fuel pump are arranged in the crank case, and the crank is connected to a piston by a connecting rod; the connecting rod and the piston are arranged in the cylinder body, and the center of the crank does not penetrate through the center of the cylinder body; a cam shaft, a rocker arm, an air inlet, an air outlet and a combustion chamber are arranged on the cylinder head; the cylinder body shifts toward the rear of the cycle body, the central line of the cylinder body shifted is between the center of the crank and the center of the main shaft, and the crank rotates clockwise. Thus, part configuration space before the engine can be effectively increased, and side friction produced when the piston runs is reduced. Meanwhile, the purpose in conveniently arranging an exhaust pipe is achieved.

The invention relates to a high-isolation MIMO antenna of a complementary semicircular structure and belongs to the technical field of wireless communication. The antenna includes a first antenna unitand a second antenna unit disposed orthogonally on a dielectric substrate; each of the two antenna units is composed of a semicircular metal patch and a rectangular metal patch; with a polarization diversity technology adopted, coupling between the two antenna units is very small, so that high port isolation is realized; a distance between the two antenna unit is smaller than one wavelength, so that the size of the MIMO system composed of the two antenna units is significantly reduced, and the effect of miniaturization is achieved. Many working frequencies of an intelligent terminal are included in the frequency band of the antenna of the present invention, and therefore, the same antenna can be used to perform a plurality of functions, the number of antennas in the intelligent terminal can be finally reduced, and the performance of the antenna can be improved.

A slide switch includes a body, a slider, a terminal, and an armature. The slider is slidably held in the body and is pushed by insertion of the object to slidingly move. The terminal is provided with a fixed contact point disposed on a surface, facing the slider, of the body along a sliding movement direction. The armature is attached to the slider and is provided with a moving contact point that slides on a fixed contact point disposition surface of the body in association with sliding movement of the slider. The slider is provided with an engagement part to receive an action of a moving part that moves in the sliding movement direction in association with extraction and insertion of the object, and the engagement part is in shape of generating a free running distance in which the slider does not act even when the moving part acts.

The invention relates to a plate type heat exchanger which includes: a housing which includes a plurality of plate sheets which are formed by repetition of a first flow path which flows a first thermal medium and a second flow path which flows a second thermal medium, the first flow path and the second flow path being placed in an overlapping arrangement at a certain interval in a front and back direction, and vaporizing space being formed in the upper parts of the plate sheets, the second flow path being configured to form discharge holes which discharge the second thermal medium to the vaporizing space; a first supplying line which is configured to form a shape which penetrates the plurality of plate sheets so as to enable the first thermal medium to only flow to the first flow path; a first outflow line which is configured to form a shape which penetrates the plurality of plate sheets so as to recycle the first thermal medium which is subject to thermal exchange in the first flow path; a second supplying line which is configured to form a shape which penetrates the plurality of plate sheets so as to enable the second thermal medium to only flow to the second flow path; a second outflow line which is connected to the housing and discharges the second thermal medium in the vaporizing space.

The invention discloses an angle logarithm folding groove waveguide slow-wave structure and relates to the field of electronic vacuum high-power devices and components. The structure includes two metal cover plates which are in vertical mirror symmetry with each other; the metal cover plates are connected with each other through brazing, and each metal cover plate includes a metal cavity, a cathode emitter arranged on the metal cavity, a groove waveguide etched in the metal cavity, an angular-directional electromagnetic wave channel groove etched in the groove waveguide and end openings formedin both ends of the groove waveguide; the gaps between the upper portion and lower portion of each groove waveguide form radial electron injection channels, and angle logarithm groove waveguides which have high frequency bands and can substantially reduce voltage are adopted as the groove waveguides. The angle logarithm folding groove waveguide slow-wave structure solves the problems that when existing folding waveguides run at high frequency bands, the interiors lose effects and devices and components cannot be miniaturized due to excessively high working voltage. The effects of generating high-power electromagnetic waves with terahertz wave bands, effectively reducing working voltage of the electronic vacuum devices and components, reducing the sizes of corresponding devices and miniaturizing the electronic vacuum devices and components are achieved.

The invention relates to a thermal conductance piece, comprising a heat-conducting strip, at least one extending strip and at least one connection strip, wherein the heat-conducting strip is provided with a first heat-dissipation face; at least one extending strip is provided with a second heat-dissipation face; and at least one connection strip is used for connecting at least one extending strip and the heat-conducting strip mutually. The first heat-dissipation face of the heat-conducting strip and the second heat-dissipation face of at least one heat-dissipation strip are non-coplane; and when the heat-conducting strip is applied to a heat-dissipation system, the assembly height after the mutually combination of the heat-dissipation system and various heat sources is reduced.

Provided is a water purifier comprising a raw water receiving port, a body having a switching mechanism for switching the passage of raw water introduced from the raw water receiving port, and a waterpurifying cartridge containing a filter material for filtering the raw water and disposed removably relative to the body. The water purifier is characterized in that a male connector is disposed in one of the water purifying cartridge and the body whereas a female connector is disposed in the other and inserted and fitted on the male connector, in that plural pairs of those male and female connectors exist between the body and the water purifying cartridge and along the longitudinal direction of the water purifying cartridge, in that the male connector and the female connector of at least oneof the plural pairs form a water passage between the body and the water purifying cartridge, and in that the water purifying cartridge is mounted in the body by fitting the male connector and the female connector.

The invention provides a small fuel supply device with a few amounts of elements. The rotating inclined plate of the fuel supply device is arranged by a rolling bearing whose axle center is inclined relative to a drive shaft, the axle center of the drive shaft passes trough the axle center of the rolling bearing and crossing points of planes including a plurality of centers of bearing balls. The rotating inclined plate uses the inclining support face of a bush to support the oblique of the rotating inclined plate under the state that the rotating inclined plate is inclined by that rotating inclined plate tables with the installation axis which is inclined relative to the drive shaft or tables with the ball part of the drive shaft. The rotating inclined plate can be supported by the bush across an elastic component or that the torque failure intensity of the bush is lower than self-locking torque. The invention can reduce the amount of the elements and realize the miniaturization of the fuel supply device.