5 results about "Circuit integrity" patented technology

The invention discloses an insulating multi-layer Clip applied to a power module and a preparation method of the insulating multi-layer Clip, aging and layering risks of a traditional adhesive are eliminated through an adhesive-free laminated structure of the insulating multi-layer Clip, heat resistance, chemical resistance and long-term reliability of a product are improved, and meanwhile, an adhesive layer is omitted, so that the overall thickness of the product is thinner and more flexible; through the connection of deep drawing forming and the surface silver / nickel plating process, the three-dimensional assembly requirement of the insulation multi-layer Clip is met, and the conductive performance and the contact reliability of the circuit are improved. Multiple alignment errors are avoided through a one-time pressing process, the interlayer alignment precision is extremely high, the thickness of the dielectric layer is uniform, and the electrical performance consistency is good; the size precision and the circuit integrity of the product are guaranteed through the working procedures of drilling, etching, laser cutting and the like in combination with the precise temperature control and positioning technology. The method can be applied to the technical field of chip packaging.

The invention belongs to the technical field of cables, and particularly relates to a high-flexibility and high-fire-resistance composite sheath cable and a manufacturing method thereof. The composite sheath cable comprises conductors, insulating layers are extruded outside the conductors, the conductors extruded with the insulating layers form a cable core in a 0 + 6 structure, a center layer of the cable core is filled with a filling core, an inner sheath is extruded on the outer layer of the cable core, a fire-resistant shielding layer is lapped on the outer layer of the inner sheath, and a composite outer sheath is arranged on the outer layer of the fire-resistant shielding layer. Through the innovative layered structure and material design, the defect that a cable in the prior art is difficult to have high flexibility and high fire resistance at the same time is overcome, and the cable which is novel in structure and can still keep circuit integrity and fire resistance under severe mechanical stress is provided. The cable is suitable for special occasions with high vibration, frequent bending and extremely high requirements on fire resistance, such as robot drag chains, offshore oil platforms and internal wiring of automation equipment.

The invention discloses a circuit breaker opening and closing monitoring system and monitoring method, and relates to the technical field of power system relay protection, and the system comprises a closing unit, an opening unit and a monitoring unit. The closing unit comprises a re-closing monitoring loop which is used for monitoring the conduction state of the circuit when the circuit breaker is closed next time in the closing state. The opening unit comprises a re-opening monitoring loop which is used for monitoring the conduction state of the circuit when the circuit breaker is opened next time in the opening state. The monitoring unit comprises a re-closing signal loop and a re-opening signal loop which respectively take the normally closed contacts of the corresponding relays as cores and convert the abnormal states of the loops into alarm signals sent to the background. The monitoring system realizes real-time and comprehensive monitoring of the integrity of the circuit breaker loop, and improves the absolute reliability of the action of the circuit breaker.

The application relates to a gate circuit reliability critical path identification method, which comprises the following steps: S1, constructing a circuit integrity chain table to identify all paths existing in the circuit; S2, constructing a local probability matrix based on input probability distribution and output probability distribution; S3, constructing a circuit adjacency matrix; S4, obtaining a local adjacency probability matrix; S5, obtaining a global probability matrix; S6, reading all paths to obtain a reliability value matrix of each path, sorting the paths according to the numerical value of each row of the reliability value matrix, and obtaining a reliability critical path. Compared with the prior art, the application has the advantages of reducing the complexity of calculation under the premise of ensuring the evaluation accuracy.