11 results about "Conical projection" patented technology

The invention relates to the technical field of simulation optimization, and discloses a charging module heat dissipation optimization method based on temperature field simulation, and the method comprises the steps: firstly discretizing a heat dissipation space into voxel units, and collecting flow heat data; calculating the flow resistance sensitivity according to the relationship between the flow velocity vector and the main wind direction; calculating an effective convection potential energy density and a gradient vector thereof by combining a Reynolds number and a temperature difference; then, generating a chasing cold source driving vector based on the heat flux demand of the component; establishing a thermal wake flow cone projection model, and calculating a thermal wake flow rejection vector; generating a flow resistance avoidance vector in combination with the regional flow velocity direction; and finally, performing weighted synthesis on the three vectors to obtain optimized displacement, and updating coordinates of the component. According to the technical scheme, through multi-physics field coupling analysis, while a driving component finds a high cooling potential area, flow channel smoothness and thermal wake avoidance are effectively considered, and deterministic optimization of the charging module layout is realized.

The utility model belongs to the technical field of breeding equipment, and particularly provides an anti-accumulation feeding barrel which comprises a charging barrel body and a charging tray. A feeding hole is formed in the upper end of the charging basket body, and a side wall opening is formed in the side wall of the lower end of the charging basket body; a charging tray connecting piece is arranged on the charging barrel body; a conical bulge is arranged on the base plate; the charging basket body is detachably mounted on the charging tray through the charging tray connecting piece, and the top of the conical bulge is positioned in the charging basket body; and a discharge hole is formed between the side wall opening and the conical bulge. According to the anti-accumulation feeding barrel, the conical protrusion is arranged on the charging tray, so that feed in the charging barrel body can be drained out of the discharging opening through the inclined side wall of the conical protrusion, the feed is prevented from being accumulated in the barrel, and ingestion of fed animals is not affected. In addition, the grid baffle is arranged at the feeding port, the fed animals can be effectively prevented from entering the feed barrel body by mistake, and potential safety hazards are avoided; and through arrangement of clamping blocks and clamping grooves, dismounting and mounting of the charging barrel body and the charging tray can be rapidly achieved, the feeding barrel is convenient to clean, and feed residues are avoided.

A semiconductor wafer cleaning apparatus is provided. The semiconductor wafer cleaning apparatus includes a spin base, a spindle extending through the spin base, and a clamping member covering the spin base. The spindle includes a mounting part and a supporting part disposed on the mounting part. The mounting part includes an inner projection, the supporting part includes a conical projection, and the conical projection is surrounded by the inner projection. The semiconductor wafer cleaning apparatus further includes a first sealing ring disposed between the spin base and the mounting part.

The enclosure is easy to assemble, yet the electrical conductivity between the metal plates is firmly maintained even when installed in an environment subject to mechanical stress. [Solution] The first disc spring washer (40A) and the second disc spring washer (40B) of the fastening portion (2) of the housing of the power receiving equipment have a plurality of conical projections (43) arranged along the outer circumference and protruding from the surface, and when the fastening portion fastens the two metal plates (12A, 12B), the tips of the conical projections pierce the coating (121) of the metal plates and reach the metal part.

The application discloses a kind of columnar parts diffuse reflection inner surface size detection method, by the cooperation of laser assembly and conical lens, can be changed into light plane projection by solid conical projection, the main shaft of reference cylinder, industrial camera and laser three is vertical to light plane projection, compared to the light plane and inner surface oblique intersection in prior art, cause the problem of light stripe width is wide, light plane projection and reference cylinder inner surface orthogonal in the application, with the inner surface of the cylinder to be measured is oblique, but the angle of oblique intersection is close to orthogonal, light stripe width extension is not obvious, will not interfere with the accurate extraction of light stripe, reduce the error caused by the width of light stripe, and then improve the precision of subsequent calculation;In addition, solid conical projection is changed into light plane projection, also significantly shorten the distance between laser and columnar parts, even in the case of limited space, can also ensure the accurate, comprehensive projection of stripe.

The application discloses a kind of Compton imaging iterative reconstruction methods for radiation hotspot fast positioning.This method is:1) from the coincidence event of detection screening imaging event;2) calculate the Compton conical projection of imaging event in projection space;3) according to each Compton conical projection generates a response matrix;4) projection space is divided into low resolution imaging space;5) after dividing into multiple subsystem response matrix, response matrix;Low resolution system response matrix is generated, and the integral value of its element corresponds to the subsystem response matrix;6) the iterative reconstruction of low resolution imaging space is carried out to obtain low resolution image;7) according to the maximum value index of the pixel of low resolution image corresponding subsystem response matrix, local high resolution iterative reconstruction is carried out, and the real angular orientation of radiation hotspot is obtained;8) according to the pixel of high resolution iterative reconstruction result of heat value area in low resolution image, projection space pixel is sequentially valued, and complete high resolution image is obtained.

To obtain an integrated shape with excellent appearance by combining a pair of brush bodies while each one of the brush bodies can be used for washing and massaging concerning a massage brush constituted by a combination of the pair of brush bodies.SOLUTION: A massage brush 1 is constituted by a pair of brush bodies 2, 2 each having a brush surface 10 where synthetic-resin-made projections 11, 12 are protruded, can be treated by gripping the respective brush bodies 2, 2, by right and left hands when used, and the brush surfaces 10, 10 of the brush bodies 2, 2 are superimposed with each other so as to be integrated when stored. Conical projections 11, 12 are protruded at predetermined positions in the brush surfaces 10, and a plurality of insertion holes 13, 14 are formed so as to allow the projections 11, 12 of the opposing brush surface 10 to be inserted in superimposition. All the projections 11, 12 are housed inside the insertion holes 13, 14 and are not exposed to an outside when the brush surfaces 10, 10 are integrated by superimposition.SELECTED DRAWING: Figure 2

The invention discloses a method for detecting the size of a diffuse reflection inner surface of a cylindrical part, and the method comprises the steps: enabling a laser assembly to be matched with a conical lens, converting the three-dimensional conical projection into light plane projection, and enabling the main shafts of a reference cylinder, an industrial camera and a laser to be perpendicular to the light plane projection. According to the method, light plane projection is orthogonal to the inner surface of a reference cylinder and is obliquely crossed with the inner surface of a cylinder to be measured, but the oblique crossing angle is approximately orthogonal, the width of the light stripe is not obviously prolonged, accurate extraction of the light stripe cannot be interfered, errors caused by the width of the light stripe are reduced, and then the precision of subsequent calculation is improved; besides, the three-dimensional conical projection is converted into the light plane projection, so that the distance between the laser and the columnar part is remarkably shortened, and the accurate and comprehensive projection of the stripes can be ensured even under the condition of limited space.

To provide a laser processing machine that can improve the efficiency of gas supply. [Solution] The laser processing machine 10 according to this disclosure includes a processing point nozzle 3 that supplies gas to the processing point WP of the laser beam LL. The processing point nozzle 3 includes a hemispherical portion 32 having a substantially hemispherical internal space to which gas is supplied from a gas supply unit 4, and a hemispherical concave surface 32a that encloses the substantially hemispherical internal space, and a plurality of flow paths 33 that branch off from the hemispherical portion 32. Each flow path 33 includes a straight portion 33a extending linearly from the hemispherical portion 32, a fan-shaped portion 33b spreading out in a fan shape from the straight portion 33a, a group of nozzles 33c consisting of a plurality of nozzles 33d arranged in a row at the tip of the fan-shaped portion 33b, and an opening 33aa that opens in the hemispherical concave surface 32a. The hemispherical portion 32 includes a conical projection 37 provided at the center of the plurality of openings 33aa provided by each of the plurality of flow paths 33 in the hemispherical concave surface 32a.

The invention relates to a bi-stage expandable bone fastener. The bone fastener includes an expandable outer region and a cannulated threaded bolt. The expandable outer region includes a circular disc and a plurality of surfaces conjoined via a plurality of living hinges forming a hollow cylindrical structure. The surfaces are mounted on the circular disc such that one of the surface is rigidly attached to the circular disc. The expandable outer region is operably coupled to a centrally cannulated threaded bolt. The cannulated threaded bolt has a first threaded region proximal to a first end and a second threaded region proximal to a second end. A first conical projection and a second conical projection are mounted on the cannulated threaded bolt. A hammering head is provided with a detachable screw driver for enabling bi-stage expansion of the bone fastener due to a bi-directional movement of the first conical projection and the second conical projection.

The application discloses a kind of near-field channel estimation methods based on cross antenna array in the field of wireless communication technology.The method constructs super-large-scale cross-shaped antenna array XL-CSA architecture, which is composed of two uniform linear array subarrays arranged orthogonally along the X-axis and Y-axis, proposes a spatial position decoupling method based on conical projection, converts the three-dimensional channel estimation problem into two independent estimation problems on two-dimensional planes, and constructs a low-complexity modular dictionary;The SOMP algorithm in the spatial domain is used for preliminary channel estimation;The channel parameters are refined by the enhanced structured sparse iterative off-grid ES-SIGW algorithm.The application solves the problems of low near-field channel estimation accuracy and high computational complexity in the XL-MIMO assisted unmanned aerial vehicle communication system, and is suitable for near-field and far-field scenarios, achieving high-precision channel estimation with low pilot overhead.