3results about How to "Increase flux density" patented technology

The invention discloses an application method of a component embedded packaging unit in a PCB, and belongs to the technical field of printed circuit boards, the method comprises the steps that a second PCB substrate is processed according to design requirements, a scooping groove is generated, and the surface of the second PCB substrate after the scooping groove is formed is provided with a second copper layer; vertically embedding a component embedding and packaging unit into the fishing groove; and sequentially laying a prepreg and a copper foil on the surface of the second copper layer, carrying out lamination, processing a laser hole for external conduction at the pin position of the component, and carrying out electroplating copper plating on the laser hole so as to realize circuit conduction in the PCB. The application mode has flexibility; and compared with the traditional horizontal structure, the vertical embedding structure can reduce the plane occupied space and increase the through-flow density.

The invention relates to the technical field of nuclear power, and provides a reactor passive starting device and a reactor passive starting method in order to reduce or eliminate a blind area range during passive starting of a nuclear power reactor. The device comprises a detector arranged in an out-of-reactor detection duct and a neutron channel box arranged in a descending section coolant layer between a pressure vessel and a hanging basket of a reactor, wherein the neutron channel box is close to the out-of-reactor detector; when the neutron channel box is a hollow channel, the passive starting method of the reactor comprises the following steps: in the starting process of the reactor, keeping that the neutron channel box is filled with high-pressure gas, keeping that a coolant does not circulate in the neutron channel box, and keeping that the coolant still circulates in other areas between the hanging basket and the pressure vessel; after the critical start of the reactor is completed, injecting a coolant into the neutron channel box; according to the method, the critical monitoring blind area in the critical starting process of the first-cycle reactor is eliminated, and blind-area-free passive starting of the first-cycle reactor is realized.

The application discloses a connector terminal, a connector and a connector assembly. The connector terminal comprises a first terminal and a second terminal. The first terminal comprises a first body in a sheet shape, having upper and lower sides opposite in a vertical direction and front and rear sides opposite in a longitudinal direction, and a first pin connected to the lower side of the first body. The second terminal comprises a second body in a sheet shape, having upper and lower sides opposite in a vertical direction and front and rear sides opposite in a longitudinal direction, and a second pin connected to the lower side of the second body. The first body and the second body are laminated and fixed together, and the first pin and the corresponding second pin are combined together, so as to be simultaneously inserted into the same hole on a circuit board. The application can improve the current density of the circuit board, is suitable for a space-limited case, and expands the application range of the connector.