4results about How to "Effective connectivity" patented technology

The invention discloses spray drying equipment for preparing waterborne polyurethane powder, and relates to the technical field of powder drying. Comprising a drying tower and a drying partition cavity, an air distribution disc and an atomizer are mounted at the top of the drying partition cavity, an air outlet ring groove is formed in the bottom of the air distribution disc, and the atomizer is connected with a spraying disc; a fixing base is installed at the bottom of the drying tower through a supporting frame, a height-adjustable lifting plate is arranged at the top of the fixing base, and a high-frequency vibration assembly is arranged at the top of the lifting plate. A convergent air curtain is formed through the air outlet ring groove of the air distribution disc, so that atomized fog drops do not make direct contact with the inner wall but move downwards after being fully mixed with hot air, attachment is reduced from the source, and drying uniformity is improved; meanwhile, the vibration tympanic membrane realizes high-frequency vibration through a coil and an annular magnet, so that deposited liquid beads or powder is continuously thrown, caking is avoided, and the powder flowability is ensured; and on the other hand, a gap channel is formed through a covering and sealing structure of the film and the drying partition cavity, and dissipation is effectively prevented in the powder collecting stage.

This invention relates to the field of tire technology and discloses a tire with low rolling resistance, high handling, and low electrical resistance, comprising a first crown, a second crown fixedly connected to the bottom of the first crown, and a third crown fixedly connected to the bottom of the second crown. This invention, by setting up a first crown, a second crown, a third crown, and vertical grooves, utilizes the vertical grooves on the first crown to pierce the water film during wet driving, thereby improving drainage efficiency and grip. On dry surfaces, the groove edges increase ground contact, enhancing handling response. Simultaneously, the groove distribution disrupts rolling noise frequencies to reduce noise, increases surface area to aid heat dissipation, buffers peak pressure to improve wear uniformity, and works synergistically with the low rolling resistance of the second crown and the electrical conductivity of the third crown. Testing has verified that this structure allows the tire to maintain a higher level of grip performance and achieve a rolling resistance coefficient reaching EU Class A.

The utility model relates to the technical field of magnetic device testing, in particular to an automatic inductance and elastic sheet testing mechanism for a magnetic device, which comprises a testing jig, an upper testing module and a lower testing module, and is characterized in that the testing jig is arranged between the upper testing module and the lower testing module and is used for fixing the tested magnetic device; the upper test module comprises an upper support, an upper driving assembly, a first contact assembly, a second contact assembly and a pressing assembly, the upper driving assembly and the pressing assembly are both arranged on the upper support, and the first contact assembly and the second contact assembly are both arranged on the upper driving assembly; the upper driving assembly is used for driving the first contact assembly and the second contact assembly to make conductive contact with the magnetic device. The lower test module is used for conducting contact with an elastic sheet on the lower surface of the magnetic device. According to the utility model, the comprehensiveness and the reliability of the performance test of the inductance and the elastic sheet of the magnetic device are improved, and the higher requirement on the quality control of the magnetic device under the scenes of industrial production and the like can be met.

This utility model relates to the field of router board technology, and discloses a router board component that supports modular expansion. In modern network communication, existing router board expansion suffers from problems such as cumbersome operation, unstable connection, difficult disassembly and assembly, and poor heat dissipation. This component consists of multiple router board units that can be stacked vertically. Each board unit includes an expansion box and a board body, which are connected by a snap-fit ​​component. The L-shaped latch of the lower unit is pushed by the abutment protrusion on the support block of the upper unit, automatically rotates and retracts, and snaps into the limiting groove of the upper unit, completing the connection and locking. To disassemble, the latch can be unlocked by moving the sliding base. At the same time, the board body is easy to install, and the stacked components form a heat dissipation channel. This component improves assembly efficiency and structural stability, enhances heat dissipation, and is suitable for router board expansion scenarios.