7 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.

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 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.