4results about How to "Fast dissipation" patented technology

The present application relates to a kind of oil pipe dosing device, to solve the problem of traditional dosing method medicament uniform dispersion to the bottom of oil pipe.The device includes oil pipe, adjacent oil pipe male oil pipe joint and female oil pipe joint are threadedly connected;N connection flat tubes, which are closely attached to the outer wall of the oil pipe, the n connection flat tubes are connected into a complete annular sleeve in the circumferential direction of the oil pipe, and n is an even number;Wherein, from the female oil pipe joint to the extension direction of the oil pipe body, the width of the inner cavity of the connection flat tube gradually decreases along the radial direction of the oil pipe, so that the inner cavity of the connection flat tube forms an expanded diameter structure at the connection of the upper and lower adjacent oil pipes;The connection flat tube is made of wear-resistant and corrosion-resistant composite material, and an antistatic coating is provided on the outer side wall of the connection flat tube.The present application does not need to modify the existing oil pipe structure, and the modular design improves the installation efficiency, is suitable for thick oil, high sulfur / wax oil well, can reduce the load of pumping equipment, and prolong the service life of oil pipe.

The utility model provides an anti-interference multilayer circuit board, comprising a circuit board, the side surface of the circuit board is fixedly connected with a connecting block, the connecting block is provided with a lock hole, the top of the circuit board is provided with a top frame, the top frame is provided with meshes, the middle part of the top frame is provided with a bearing, the bearing is internally provided with a screw rod, and the screw rod is provided with a screw hole. The utility model has the advantages that the top frame and the bottom frame which are made of copper materials are adopted to form a structure similar to a copper net on the outer side of the circuit board, the circuit board is wrapped in the structure, and the anti-interference capability of the circuit board is improved. The top frame is provided with a plurality of meshes, so that the weight and the copper content of the top frame can be reduced by the meshes, and heat generated by the working of the circuit board can be quickly dissipated outwards conveniently. The arrangement of the air holes can enable the heat at the bottom of the circuit board to be dissipated outwards, thereby guaranteeing the heat dissipation effect of the circuit board. The structure is simple, the cost is low, the heat dissipation effect of the circuit board is better, and the practicability is higher.

This application relates to the field of optical device technology, and discloses a Faraday rotator, its fabrication method, and an isolator. The Faraday rotator comprises multiple magneto-optical crystals and multiple heat-dissipating crystals, which are alternately stacked along the optical path. Embodiments of this application can overcome the thermal focus shift defect of the isolator without increasing the output beam diameter of the collimator.

The present invention provides a backhanded filling structure and an automobile anti-collision beam, wherein the backhanded filling structure comprises: three backhanded units, wherein the backhanded units comprise a pitch circle and eight ligaments, wherein the pitch circle comprises four quadrant points evenly spaced apart, wherein every two ligaments define a ligament group, wherein four ligament groups are evenly spaced apart circumferentially on the pitch circle, wherein the first ends of two ligaments in the ligament group extend toward the pitch circle and intersect perpendicularly, and the second ends are tangent to the pitch circle and connected to two of the quadrant points of the pitch circle, wherein the centers of the pitch circles of the three backhanded units coincide and are connected to the quadrant points in pairs, intersecting perpendicularly. The application of this technical solution can realize a backhanded filling structure having light weight, high compressive strength and good energy absorption effect, which is beneficial to improving the buffering effect and an automobile anti-collision beam filled with the backhanded filling structure.