43results about How to "Guaranteed flow capacity" patented technology

The invention relates to a busbar assembly and a busbar connecting structure. When the busbar assembly disclosed by the invention is used for being connected with GIS devices, a front-section busbar and a rear-section busbar are connected with two GIS devices respectively, the front-section busbar and the rear-section busbar are connected with a corrugated pipe between the front-section busbar and the rear-section busbar through a busbar connecting structure, when the two GIS devices generate mismatching in the vertical direction, the corrugated pipe between the front-section busbar and the rear-section busbar is deformed by stress, the busbars are prevented from being damaged by stress to guarantee the flow capacity of shells of the busbars, a flow guide row set is arranged between the front-section busbar and the rear-section busbar through electric conduction connection, and the front section and the rear section of a first flow guide row in the flow guide row set are articulated and connected through an articulated shaft of which an axis is vertical to the extension direction of the corrugated pipe, so that the front section and the rear section of the first flow guide row can rotate relatively so as to adapt the mismatching in the vertical direction, or the front section and the rear section of the first flow guide row are articulated and connected through a universal hinge, so that the first flow guide row can adapt deformation in various directions.

The invention discloses a preparation method for a copper / aluminium nitride ceramic composite heat-conductive substrate. The method comprises the following steps: 1) providing through holes in the surface of an aluminium nitride substrate; 2) coating copper electronic paste layers on the double surfaces of the aluminium nitride substrate; 3) filling the through holes with pre-oxidation copper cylinders; 4) carrying out overall sintering for 30 min; 5) carrying out brazing after the double surfaces of the aluminium nitride substrate being coated with tin silver copper solder materials; 6) carrying out surface polishing; and 7) carrying out copper plating processing directly and forming uniform copper layers, and thus, the copper / aluminium nitride ceramic composite heat-conductive substrate is obtained. The through holes in the copper / aluminium nitride ceramic composite heat-conductive substrate produced with the preparation method are communicated up and down; the combination between the metalized layers in the holes and the ceramic substrate is strong; the middle copper cylinders can realize the communication of the copper layers on the upper and lower surfaces; and the copper / aluminium nitride ceramic composite heat-conductive substrate helps the transmission of electrical signals and has the advantages of ideal heat-conductive effect, low thermal expansion coefficients and good conductivity and the like.

The invention discloses a connecting device, in particular a connecting device for a busbar channel and switch circuit breaker in switchgear and belongs to the technical field of distribution switchgear. The device comprises multiple insulation modules provided with mounting grooves and conductive plug strips, wherein the insulation modules press the conductive plug strips in the mounting grooves to form busbar plug channels, the device further comprises outer protective cases which sleeve the insulation modules and are used for protection and reinforcement, the insulation modules sleeve the conductive plug strips through the outer protective cases, and insulation partitions for isolation are arranged among plug channels. With the adoption of the connecting device, the problem that circuits for electrical connection in the switchgear are complex is solved, so that inner connecting units are modular, the connecting device is easy to assemble and free from maintenance due to adoption of the plug manner, the structure in the switchgear is effectively optimized, and the cost is reduced.

The invention discloses a golden finger structure and a power source module with the same. The golden finger structure is used for avoiding the phenomenon that in hot plug, breakdown short circuit occurs between adjacent golden fingers due to striking and arc discharging of golden fingers. The golden finger structure comprises at least two golden fingers which are arranged in an adjacent mode, the distance between front ends of the inserted direction of the two adjacent golden fingers is larger than that between rear ends of the inserted direction, and the distance between the front ends of the inserted direction of the two adjacent golden fingers is larger than that of arc extinguishing.

Disclosed are a connection device and a method for parameter matching using same. The connection device comprises: a first port, one end of which is connected to a microstrip line, and the other end of which is used as a data interface; a second port, one end of which is connected to the microstrip line, and the other end of which is used as a connection interface for a feed circuit of a tunable antenna; and a third port, one end of which is connected to the microstrip line, and the other end of which is used as a connection interface for an antenna calibration radio frequency channel.

The present invention provides a fixed contact and a fixed contact module, and a GIS isolation switch. The fixed contact module comprises a fixed contact and an arcing contact, the fixed contact comprises a hollow contact seat, one end, in an axial direction, of the hollow contact seat is provided with an opening configured to allow a moving contact to plug, the other end of the hollow contact seat is provided with a fixed connection structure connected with an insulator, the inner cavity of the hollow contact seat is provided with an installation support, and the arcing contact is installed on the installation support and is extended into the opening. According to the design of the structure, the fixed contact module only needs connection of the fixed contact and the insulator with no need for preservation of a connection position of the arcing contact on the insulator so as to reduce the size of an insertion piece on the insulator; and moreover, the arcing contact is installed on thefixed contact to shorten a distance between the arcing contact and the plugging position, the breaking of the arcing contact is not easy to happen, and the reliability is high.

The invention relates to a lithium ion battery and tab and pole connecting pieces thereof. The lithium ion battery comprises tabs drawn out from battery cells, wherein a connecting piece is connected with each tab and a corresponding pole of the battery; each connecting piece comprises a tab connecting part which is in conductive connection with the corresponding tab; each tab consists of at least two tab bodies which are separated from each other along the thickness direction of the tab and are arranged at intervals; each tab body is connected with a corresponding battery cell; and the tab connecting part of each connecting piece is provided with connecting bodies which are arranged in parallel and are attached and connected to each tab body in a matching mode one by one. Each tab is provided with the at least two tab bodies which are separated from each other along the thickness direction of the tab and are arranged at intervals, and the connecting pieces of the tabs and the poles are provided with the multiple branch connecting bodies, so that the connecting thickness of the tabs and the connecting pieces can be greatly reduced. Therefore, the tabs and the poles are easier to be connected with one another, and in particular an outstanding thickness reduction effect can be achieved for an ultrasonic welding process.

An optical module provided by the present application includes a circuit board, the circuit board includes an upper surface, an intermediate layer and a lower surface, wherein the upper surface is provided with an upper power supply structure, and the upper power supply structure includes a first power supply pin and a first power supply pin connection end , the middle layer is provided with a power supply metal layer on the projection area of ​​the upper power supply structure, and the lower surface is provided with a lower power supply structure, and the lower power supply structure includes a second power supply pin and a second power supply pin connection terminal, wherein, on the one hand, the first The area design of the first power supply pin or the second power supply pin is larger than that of other pins, which can increase the flow capacity of the power supply signal; on the other hand, the area of ​​the middle power supply metal layer is larger than the area of ​​the upper power supply structure. At the same time, it is also larger than the area of ​​the lower power supply structure, that is, the area of ​​the power metal layer in the middle layer is designed to be larger, which can ensure the power signal flow capability, and the parasitic parameters and crosstalk are smaller, thereby meeting the power consumption of higher-speed optical modules. need.

The invention provides a solid-sealed pole post and a circuit breaker employing the same, which are used for solving the problem of complicated movable-end outgoing line seat structure due to heat dissipation hole opening in an existing solid-sealed pole post. The solid-sealed pole post comprises a solid-sealed pole post body, wherein the solid-sealed pole post body is provided with an arc extinguishing chamber, a moveable-end outgoing line seat and a heat dissipation outlet, the movable-end outgoing line seat comprises an outgoing line part and a connection part, the connection part is electrically connected with a mobile end of the arc extinguishing structure in a moving way, a heat sink is fixedly pasted at an outer side of the connection part and is provided with a plurality of heat dissipation fins, the plurality of heat dissipation fins are arranged at intervals, and a heat dissipation passage communicating the heat dissipation outlet is formed between adjacent heat dissipation fins. The heat sink is fixedly pasted at the outer side of the connection part of the movable-end outgoing line seat, heat of the connection part of the movable-end outgoing line seat can be transferred to the heat sink, the heat dissipation passage is formed between two adjacent heat dissipation fins in the heat sink and communicates with the heat dissipation outlet, the heat generated by the connection part can be rapidly released to the exterior of the solid-sealed pole post, and the problem of complicated movable-end outgoing line seat structure is solved.

The invention provides an isolation switch conducting structure formed by special-shaped aluminium tubes. The isolation switch conducting structure comprises two upper portion conductive parts and two lower portion conductive parts. The upper portion conductive parts include conductive tubes and contact pads that are installed on the conductive tubes; the two conductive tubes are symmetrically connected together through a rotating shaft pin, wherein the rotating shaft pin is in the middle of the conductive tubes, so that an X shape is formed; and connection pins are installed at the low portions of the conductive tubes. Besides, the two lower portion conductive parts are symmetrically arranged at positions, wherein the positions are below and corresponded to the upper portion conductive parts; end portion shafts are fixed at inner side ends of the two lower portion conductive parts; and pins are installed at outboard ends. And the connection pins are connected with the corresponded pins through two side plates. According to the invention, the contact pads employ a fixed contact mode with arc plane contacting; and the contact pads have simple structures and can be installed conveniently as well as the contact areas of the contacts are large. A copper belt fixed electrical connection mode is employed during the conductive connection, so that a conductive contact area is increased, current distribution is uniform and heat is radiated fast and conductive reliability is improved. Moreover, the whole conducting structure can be assembled conveniently and fast.