5results about How to "Guaranteed switching performance" patented technology

The utility model discloses a high temperature resistant pressure vessel, relates to pressure vessel field, including container body, the front center of container body is provided with the switch pipeline, the upper, lower, left and right both sides of switch pipeline inner wall front side all are provided with the moving groove, the one side of each of the four moving groove inner wall is provided with the sliding groove, the sliding groove is provided with the sliding groove. By arranging the transmission mechanism, the sealing mechanism and the like, the sealing performance of equipment is improved, the problem that a gap between a sealing gasket and a container cover is enlarged after a traditional high-temperature-resistant pressure container is opened and closed for multiple times is solved, the sealing performance of the equipment is improved, and the service life of the equipment is prolonged. According to the invention, the leakage of the medium in the equipment is prevented, the potential safety hazard during the use of the equipment is reduced, the problem of serious consequences such as fire or explosion possibly caused by the reduction of the leakproofness of the traditional equipment is avoided, and the use effect of the equipment is greatly improved.

The embodiment of the utility model discloses a waterway switching device and a shower head, and relates to but is not limited to kitchen and bath technologies. The waterway switching device comprises a shell provided with a cavity, a swing assembly installed in the cavity and rotationally connected with the shell, and a driving mechanism movably installed on the shell. Wherein the shell is provided with a water inlet flow channel, a first water outlet flow channel and a second water outlet flow channel which are communicated with the cavity, the first water outlet flow channel is provided with a first upstream side communicated with the cavity, and the second water outlet flow channel is provided with a second upstream side communicated with the cavity. The driving mechanism is arranged to be capable of driving the swing assembly to swing relative to the shell so as to seal the first upstream side or the second upstream side. In this way, the swing assembly can be designed according to the positions of the first upstream side and the second upstream side so as to guarantee the switching effect of the water outlet flow channel, and therefore the positions of the first upstream side and the second upstream side can be more flexible so as to be matched with innovative designs such as layout and flow channel trend of the water outlet flow channel on the shower head.

The present invention relates to the technical field of piezoelectric pumps, and in particular to a valve plate structure, a valve assembly and a piezoelectric pump, wherein the valve plate structure comprises: a valve plate body, the valve plate body is made of metal, the valve plate body has at least two windows, a valve extending from the valve plate body is provided in the window, and the valve comprises a connecting arm connected to the valve plate body and a valve flap connected to the connecting arm; wherein the valve flap can swing away from or close to the window along the thickness direction of the valve plate body under the action of an external force, and the thickness of the connecting arm is less than the thickness of the valve flap. The present invention fundamentally solves the service life problem of the valve plate by setting the valve plate body to be made of metal material, because the toughness and rigidity of the metal material are higher than those of the existing polymer materials, and by reducing the thickness of the connecting arm on the valve, the valve is easier to open. Compared with the prior art, the service life of the valve plate is improved, and the switching performance of the valve plate is guaranteed.

This invention discloses a semiconductor device, a fabrication method, a power module, a conversion circuit, and a vehicle. The semiconductor device includes: a semiconductor body comprising a well region and a first region; the first region being configured with a first conductivity type and located on a first surface, and the well region being configured with a second conductivity type and located on the side of the first region away from the first surface; the first surface having at least two trenches arranged at intervals; and at least one third region and at least one fourth region, both of the second conductivity type, and respectively located on the side of different trenches near the second surface; the distance from the third region to its corresponding trench is greater than the distance from the fourth region to its corresponding trench, and the distance between the third region and the fourth region is greater than zero; a gate located in a trench; a source located on the first surface; and a drain located on the second surface. The technical solution provided by this invention maintains low on-resistance and high cell density while suppressing electric field concentration at the bottom of the trench and reducing Miller capacitance.

The invention discloses a condition switching method for a satellite-ground convergence network, and belongs to the field of wireless communication. Aiming at the problem that the switching failure rate is high due to the fact that a ground switching strategy is used in satellite-ground converged communication, the invention provides a conditional switching method adaptive to target base station selection by analyzing the influence of frequent switching and unnecessary switching times increase caused by high-speed movement of a satellite on a conditional switching strategy. In a switching preparation stage, defining a measurement event based on a receiving power change rate to screen candidate base stations, and generating three candidate base station lists; in the switching execution stage, a dual execution event based on multi-attribute weighting is defined, a target base station is selected based on the three candidate base station lists, and after the base stations in the candidate lists meet the first execution event, the target base station is selected according to a second execution event weighted by the receiving power change rate, the user speed and the load balance degree. The provided condition switching method can effectively reduce the switching frequency and the failure rate, and load balancing between the base stations is achieved.