105results about How to "Change the transmission path" patented technology

The invention belongs to the field of pipes, relates to an enhanced drainage pipe and mainly relates to a superstrong-muting PE (polyethylene) core layer micro-foamed drainage pipe which is suitable for wastewater discharging, engineering transforming projects and home decoration of villa communities, high-rise residential communities, high-grade residential apartment communities and the like and industrial building fields like water discharging, sewage discharging, waste discharging and the like of industrial enterprises. The superstrong-muting PE composite drainage pipe is a multilayer composite body formed by a high-density polyethylene resin inner layer, a middle PE micro-foamed layer and a high-density polyethylene resin outer layer, the thickness ratio of the inner layer, the middle layer and the outer layer is 1:4:1, and the PE micro-foamed layer is composed of regenerated polyethylene resin powder, inorganic filler or organic filler, natural fibers, a cross-linking agent, a coupling agent, a lubricating agent, a foaming agent and an antioxidant. The superstrong-muting PE core layer micro-foamed drainage pipe has excellent denoising and muting performance, superstrong resistance to chemical corrosion and good impact resistance.

The invention relates to a variable optical attenuator based on a reflecting mirror, in particular to a wavelength dependent loss (WDL) compensation variable optical attenuator capable of compensating the wavelength dependent loss by adjusting the optical waveguide position. In a reflecting variable optical attenuator (VOA) system, through adjusting the position of the input optical waveguide on an input surface and the position of the output optical waveguide on an output surface, the transmission path of the light beam containing different wavelength components in a lens, chromatic dispersion generated by the lens self is increased, and the wavelength dependent loss (WDL) is compensated.

The invention discloses a light distribution method of a vehicle brake lamp. The light distribution method of the vehicle brake lamp is characterized by comprising an LED light source and an inner light distribution mirror; a discrete material is arranged in a substrate of the inner light distribution mirror; and emitted light of the LED light source is emitted out after passing through the inner light distribution mirror. The light distribution method is adopted; and the novel discrete material is used as an auxiliary material of the inner light distribution mirror, so that output light rays are scattered more uniformly, bright and dark areas formed on the surface of the inner light distribution mirror after lightening can be effectively weakened and eliminated, the illumination is uniform and beautiful, and the internal structure and light source selection is wider and more various.

A high-efficiency low-noise axial flow fan mainly solves the technical problems that an existing axial flow fan is low in efficiency, high in noise and the like. According to the technical scheme, the high-efficiency low-noise axial flow fan is characterized by comprising a main fan body (2), a radial annular inlet (outlet) air muffler device (1) and a muffling diffusion cylinder (4), wherein the two ends of the main fan body (2) are connected with the radial annular inlet (outlet) air muffler device (1) and the muffling diffusion cylinder (4) respectively. A cylindrical housing (209) of the main fan body (2) and a motor housing (215) form an airflow passage. The inner wall of the motor shell (215) is provided with an axial rib plate or a fan-shaped block to support a stator (205). The outer diameter of the motor housing (215) is consistent with the diameter of a hub of an impeller (216), the diameter of an inner cylinder of a front muffler and the diameter of an inner cylinder of a rear muffler. The two ends of the motor housing (215) are basically flush with one end of a main fan body housing. A flange fixing a rotator and an end cover are arranged on the inner side of the motor housing (215). Accordingly, resistance loss is reduced. An air inlet (outlet) flow passage is designed to be of a gradual-shrinkage structure and a gradual-expansion structure, so aerodynamic performance and efficiency are improved; by the adoption of the radial annular inlet (outlet) air muffler device and the main fan body housing muffling structure combining multiple mechanisms, the purpose of noise reduction is achieved. The high-efficiency low-noise axial flow fan can be widely applied to ventilation on various occasions such as mines, tunnels, industries and enterprises.

The invention provides a transportation component, a suspension transmission system and an electroplating line. The transportation component comprises a rack, two circulating transmission devices andat least one hanging tool, wherein the hanging tool is located between two circulating transmission devices, each hanging tool comprises a pendant and two sets of matching parts, and the two sets of matching parts are respectively arranged at two sides of the pendant; the matching parts are correspondingly arranged on the circulating transmission devices in a linkage mode, a double-side bridge type structure is formed through the two circulating transmission devices, and the hanging tool is connected to the double-side bridge type structure in a spanning mode. Two circulating transmission devices drive the hanging tool to operate, and therefore stress on the two sides of the hanging tool is balanced, and operation is more stable. Meanwhile, single-side stress concentration of a single circulating transmission device is avoided, and the service life of the transmission component is prolonged.

The invention provides a production line. The production line comprises a plurality of hangers, a hanger transfer system and work sections disposed along the hanger transfer system. The hanger transfer system comprises guide parts arranged on the two sides of the running path of the hangers in parallel, and the guide parts on the two sides form a bilateral bridge-type structure; and each hanger comprises a hanging part and matching parts symmetrically arranged on two sides of the hanging part, and each hanger is connected to the bilateral bridge-type structure through the matching parts and issuitable for running in the working sections along the guide parts. The hangers are suitable for fixing to-be-processed parts, in the running process of the hangers, the hangers run on the bilateralbridge-type structure, the two sides of the hangers are symmetrically supported on the bilateral bridge-type structure, the hangers are always stressed and balanced, the electroplating uniformity is improved, and the faults such as plate clamping, tooth jumping caused by tilting of one sides of the hangers are avoided.

The invention provides a motor fan housing which is arranged at a rear end cover of a motor. A plurality of lugs are uniformly distributed on the outer circumference of the rear end cover. The motor fan housing includes a fan housing cylinder. A circular truncated cone shaped deflector shield is coaxially arranged in the fan housing cylinder. The large-diameter end of the deflector shield is connected with the rear end of the fan housing cylinder. A fan is coaxially arranged in the deflector shield, and the rotating shaft of the fan is coaxially connected with the motor shaft. The front end of the fan housing cylinder is coaxially sleeved with a flange which is fixedly connected with the outer circumference of the fan housing cylinder. The front end face of the flange is adhered to the rear end faces of the lugs, and the flange and the lugs are connected through rabbet fit. The coaxiality between the fan housing cylinder and the fan is ensured. Vortex flow is avoided. The efficiency of the fan is improved. The motor cooling capacity is improved. The ventilation noise is reduced.

The invention belongs to the technical field of wireless energy transmission, and provides a controllable intelligent surface auxiliary energy transmission device and a transmission method thereof. Firstly, all the receiving terminals transmit orthogonal pilot signals, and each controllable intelligent surface estimates channel information from all the receiving terminals to the controllable intelligent surface; all the controllable intelligent surfaces send orthogonal pilot signals, and the energy station can estimate channels from all the controllable intelligent surfaces to each antenna ofthe energy station; secondly, all the controllable intelligent surfaces and the energy station exchange large-scale channel information, and the controllable intelligent surfaces calculate required phase angles and precoding coefficients required by the energy station by using the estimated channel information; and finally, the energy station radiates signals to the controllable intelligent surface by using the constructed precoding, and all receiving terminals collect energy. According to the invention, the controllable intelligent surfaces are used to change the transmission path of the signal, and energy transmission of the user is shielded.

The invention discloses a production process of silicon-based sunscreen and heat-insulation powder, and relates to the field of paints.The silicon oxide-based sunscreen and heat-insulation powder is prepared with water glass as a silicon source through a sol-gel method; SiO2 hydrosol is obtained after the water glass is treated with ion exchange resin, and SiO2 gel is obtained by adding a base catalyst and gelling; aging, surface modification, drying, heat treatment and other processes are performed to obtain dry gel coarse powder; and air jet pulverization is performed to obtain aerogel microparticles. In the process, boric acid, calcium chloride, aluminum chloride and zirconium oxychloride are used as raw materials and are doped into SiO2, so that the problems that the heat conductivity coefficient of a nano silicon oxide heat insulation material is sharply increased along with temperature rise and the heat insulation capacity at high temperature is greatly reduced are solved; and doped SiO2 is modified by using a modifier, and a large amount of hydroxyl groups on the surface of the doped SiO2 are eliminated, so that the doped SiO2 can be more easily dispersed in the coating, and the sunscreen and heat insulation effects are further improved.