23results about How to "Increase electrical clearance" patented technology

The utility model discloses a high-voltage direct-current relay which comprises an insulating cover and a yoke clamp, the yoke clamp is provided with a first tail end and a second tail end, the first tail end is connected with the second tail end, so that an annular structure is defined by the yoke clamp, and the annular structure surrounds the periphery of the insulating cover. According to the yoke clamp, the one-piece structure is adopted, the first tail end and the second tail end are connected to form the annular structure, and compared with the design that two U-shaped yoke clamps are adopted in the prior art, on one hand, the yoke clamp is of the one-piece structure, the number of parts is reduced, assembling is convenient, and the assembling efficiency is improved; and on the other hand, the yoke clamp is easy to machine, automation is easier to achieve, and the machining efficiency is remarkably improved.

The utility model discloses a vehicle-mounted capacitor, which comprises an insulating layer, a capacitor inner core, an input busbar and an output busbar, the output busbar comprises a positive busbar and a negative busbar which are stacked, the positive busbar comprises a positive welding pole plate and a positive alternating current leading-out end, and the negative busbar comprises a negative welding pole plate and a negative alternating current leading-out end; the input busbar comprises a positive direct-current bus end and a negative direct-current bus end, the positive direct-current bus end and the negative direct-current bus end are located on a positive welding pole plate and a negative welding pole plate respectively, the positive welding pole plate and the negative welding pole plate are arranged in a stacked mode, and the positive direct-current bus end and the negative direct-current bus end are arranged in a stacked mode; a first concave groove and a second concave groove are formed in the two opposite sides of the insulating layer respectively, so that the positive pole alternating current leading-out end and the negative pole alternating current leading-out end are arranged in the first concave groove and the second concave groove in the two opposite sides of the insulating layer in a stacked mode respectively. And the riding experience of the user is improved.

The application discloses a packaging structure of a power module, which comprises an insulating substrate, a plurality of base islands, a power device, a first diode, a second diode, a signal terminal, a power terminal and a plastic package body. The combination of the power device and the first diode is packaged together with the second diode, so that the stray inductance in the device is reduced, the layout and wiring are simplified, the device performance is improved, the application range of the device is wider, and the space utilization is greatly improved.

The utility model discloses a relay, a power distribution box and a battery pack. The relay comprises a first shell, an isolation plate, a first static contact terminal and a second static contact terminal. The first static contact terminal penetrates through the first shell and is provided with a first section exposed out of the first shell; the second static contact terminal penetrates through the first shell and is provided with a second section exposed out of the first shell; the isolation plate and the first shell are integrally formed, and the isolation plate is arranged between the first section and the second section. The creepage distance and the electric gap between the first section and the second section are increased through the isolation plate, so that the risk of electric leakage between the first static contact terminal and the second static contact terminal is reduced, and the insulation requirement of the high-voltage battery pack is met. Meanwhile, the isolation plate and the first shell are arranged to be of an integrally-formed structure, the connection strength of the isolation plate and the first shell can be improved, the isolation plate and the first shell are prevented from falling off in the use process, and the relay is convenient to assemble and use.

The utility model discloses a novel terminal wiring protection structure of a contactor, which relates to the technical field of terminal protection and comprises an upper cover, an upper shell is arranged at the bottom of the upper cover, a connecting seat is arranged at the bottom of the upper shell, a mounting base is arranged at the bottom of the connecting seat, and a terminal positioning component is arranged on the side surface of the upper shell. According to the utility model, the terminal cover and the terminal fixing seat are arranged to realize fixation and protection of the terminal, the fixing bolt and the connecting nut are arranged to realize positioning of the terminal and connection of the terminal and the connecting line, and the fixing bolt is matched with the connecting nut to realize locking, so that the situation that the use stability is influenced due to sliding in the use process is prevented, and the service life of the terminal is prolonged. And the side surface of the terminal cover is provided with the convex block, so that the creepage distance and the electric clearance between the terminals are improved, the electric clearance and the creepage distance are relatively large, the short circuit between the wiring terminals is effectively prevented, and the wiring safety is greatly improved.

The utility model provides a testing device and a residual-current circuit breaker, and relates to the technical field of circuit breakers, the testing device comprises a testing button, a reset testing torsion spring, a contact piece and a magnet yoke, the reset testing torsion spring comprises a magnet yoke contact part, a button connecting part, a spring coil, a supporting part and a contact piece connecting part which are arranged in sequence, and the magnet yoke contact part is obliquely arranged. The button connecting part is connected with a test button, the contact piece connecting part is used for being connected with a contact piece, and the contact piece is connected with an electronic assembly board through a test lead. By adopting the design of the special-shaped torsion spring and the contact piece, the electric gap between the torsion spring and the magnet yoke is increased, the operation safety is improved, the reset test torsion spring in the scheme is good in deformation stability, large in torsion moment and good in reset performance, the service life is prolonged, a test device is stable and reliable in operation, and the product quality is improved.

The invention discloses an electromagnetic relay, and relates to the technical field of relays, the electromagnetic relay comprises a shell, a pushing member and a moving terminal group, the pushing member is slidably mounted on the shell, the moving terminal group comprises two moving terminals, and the two moving terminals are mounted on the pushing member and are arranged at intervals along the sliding direction of the pushing member; the parts, extending out of the pushing part, of the moving terminals are the outward extending parts, the pushing part is provided with the insulating part, and the insulating part is located between the outward extending parts of the two moving terminals, so that the insulating distance between the moving terminals can be increased, and the insulating performance can be improved.

The invention provides an insulation protection structure of a vacuum circuit breaker. The insulation protection structure comprises an upper protection cover, a lower protection cover, an upper grounding contact and a lower grounding contact, the protection structure is mounted on a carrier formed by the vacuum circuit breaker, the grounding switch and the mounting base; the upper grounding contact and the lower grounding contact are correspondingly arranged on an upper flange and a lower flange of the vacuum circuit breaker respectively; the upper protective cover is used for shielding the upper grounding contact, the lower protective cover is used for shielding the lower grounding contact, and the electric gap between the upper grounding contact and the lower grounding contact is increased through the upper protective cover and the lower protective cover. By means of the upper protective cover and the lower protective cover, the electrical distance between the upper grounding contact (high-voltage electrified body) and the lower grounding contact (high-voltage electrified body) is increased, the insulating performance between high-voltage fractures is improved, the technical requirements for application of railway locomotives in high-altitude areas are met, and the safety and reliability of the vacuum circuit breaker are improved.

The utility model discloses an insulation protection assembly of a conductive plug-in, the conductive plug-in is installed on a bearing member, the conductive plug-in comprises a positive pole plug-in and a negative pole plug-in which are distributed at intervals along a first direction, the insulation protection assembly comprises an insulation support and an insulation separator plate, the insulation support is arranged on the bearing member and is located at one side of the conductive plug-in along a second direction, and the insulation separator plate is arranged on the bearing member. An included angle is formed between the second direction and the first direction, the insulating support is provided with a first side face close to the conductive plug-in, the first side face is provided with an insulating partition plate, and the insulating partition plate is inserted between the negative plug-in and the positive plug-in so as to separate the negative plug-in from the positive plug-in. The insulation protection assembly is reliable in protection, easy to install and high in safety.

The utility model relates to the technical field of connectors, and discloses a high-power connector capable of rapidly dissipating heat, which comprises a connecting nut, a central conductor I is arranged in the middle of the connecting nut, an outer conductor I is arranged outside the central conductor I, and an insulator is arranged at the bottom of the central conductor I; two sealing rings are arranged on one side of the outer portion of the first outer conductor, two check rings are arranged on the other side of the outer portion of the first outer conductor, the second outer conductor is arranged at the bottom of the first center conductor, the second center conductor is arranged in the second outer conductor, the welding body is arranged at the bottom of the second center conductor, and the tailstock is arranged outside the welding body. According to the utility model, the insulator is reinforced, two layers of materials are used, and the connector tail seat is additionally provided with the radiating fin structure, so that the high-power radiating capability of a product is enhanced, when the temperature of the product is over high, the radiating capability is improved, and the problem that the product is burnt or the performance of the product is reduced due to high heat is efficiently prevented.

The invention belongs to the technical field of electric heating tubes, and particularly relates to a double-end high-voltage heating tube end sealing structure which comprises an electric heating tube composed of a metal outer tube, an electric heating wire and a lead-out rod. Two symmetrically arranged electric heating wires and two symmetrically arranged lead-out rods are mounted in the electric heating pipe; according to the invention, the requirement of an electrical gap under a high-voltage condition is met, the adopted insulating medium adopts an insulating material with high dielectric strength, a certain angle is formed in the insulating assembling component to enlarge the distance between the two lead-out rods, and the insulating material is arranged outside the lead-out rods, so that when the lead-out rods are in the air, the lead-out rods are separated from each other; and the requirement of an electrical gap can still be met. And meanwhile, the requirement of creepage under a high-voltage condition is met. And the difficulty of process preparation is reduced, and the assembly component can be independently prepared. Meanwhile, compared with a low-voltage electric heater, the high-voltage electric heater saves the power distribution cost of an electric heater system and improves the comprehensive electro-thermal conversion efficiency of the system.

The utility model provides a branch module and power distribution equipment. The branch module is applied to power distribution equipment and can be connected with input sources with different polarities. The branch module comprises a circuit board, a conducting bar group and a bearing seat. The circuit board is provided with a first assembling area, a second assembling area and a through groove. The through groove penetrates through the circuit board and is at least arranged between the first assembly area and the second assembly area. The conducting bar group comprises a first conducting bar and a second conducting bar. The first conducting bar is assembled to the first assembling area. The second conducting bar is assembled to the second assembling area. And the first conducting bar and the second conducting bar are configured to be connected with input sources with different polarities. The bearing seat comprises a seat body and a partition plate. The circuit board is assembled to the seat body. The partition plate is arranged on the base body and penetrates through the through groove. And the groove wall of the through groove is clamped on the partition plate. The partition plate is at least partially located between the first conducting bar and the second conducting bar. According to the branch module and the power distribution equipment provided by the invention, the miniaturization design of the power distribution equipment is facilitated, and the production cost is reduced.

This application relates to the field of power converter technology, specifically to a power module and a power converter. This application aims to solve the technical problem of excessive parasitic inductance introduced into the circuit board, leading to significant power loss in the power converter. Embodiments of this application provide a power module, including a package, a first power chip, and a second power chip. Both the first and second power chips are packaged within the package. The power module also includes connecting lines disposed within the package. The first and second power chips are electrically connected via these connecting lines, facilitating the integration of the power module and improving the power density of the power converter. Because the connecting lines are disposed within the package, and the first and second power chips are electrically connected via these connecting lines, the trace distance on the circuit board can be reduced, lowering the parasitic inductance on the circuit board and thus reducing the power loss of the power converter.

The present invention discloses an insulator string for heavy ice areas, an installation method, an environmental simulation device and a method of use. The insulator string for heavy ice areas comprises two or more insulators connected in series, the insulator comprises an insulator and hardware arranged at both ends of the insulator, and the hardware of adjacent insulators is movably sleeved through a connector; the installation method of the insulator for heavy ice areas comprises two or more sets of insulator strings connected in parallel; the environmental simulation device comprises a bracket, a load box, a controller and a sensor assembly, and the two ends of the insulator or the insulator string are respectively connected to the load box and the bracket; a driver is arranged below the load box, and a tension releaser is arranged between the driver and the load box; the load box comprises a counterweight cavity for accommodating a counterweight block, and a spring is arranged between the counterweight cavity and the counterweight block. The insulator string for heavy ice areas of the present invention has good load-bearing and anti-destruction capabilities, and the environmental simulation device can quickly and accurately simulate the stress state of the insulator string when the conductor is covered with ice or de-iced.

The utility model discloses a capacitor, which comprises a shell, a first busbar, a second busbar, a capacitor core and a partition plate, a first busbar leading out power from the capacitor core, the first busbar having a first connection terminal portion adapted to be connected to an external terminal; a second busbar facing the first busbar and leading out power from the capacitor core, the second busbar having a second connection terminal portion adapted to be connected to an external terminal; the shell is provided with an accommodating cavity for accommodating a capacitor core connected with a first busbar and a second busbar; the partition plate is arranged outside the containing cavity and located between the first connecting terminal part and the second connecting terminal part to separate the first connecting terminal part and the second connecting terminal part, and the partition plate has insulativity. Therefore, the electrical gap of the capacitor is increased by using a physical isolation mode, the spatial isolation is increased, and the short circuit risk caused by metal foreign matter pollution is avoided.

The utility model discloses a connecting structure of a circuit breaker flashover cover, which is used for connecting a circuit breaker body and the flashover cover, the flashover cover is provided with a downward opening, and the connecting structure comprises a supporting piece, a connecting piece and a connecting piece, the circuit breaker body is connected with the front side surface of the flashover cover; firstly, the front side face of the flashover cover is connected with the circuit breaker body, the rear side face of the flashover cover is connected with the circuit breaker body through the supporting piece, compared with the prior art, the flashover cover is of an integrated design with a downward opening, the flashover cover is directly and downwards assembled in the installation and fixing process, and therefore the flashover cover is not prone to being damaged. And then connection and fixation are formed through the connecting structure, operation is easy, and many steps are not needed for operation. And two large components which are separated originally can be produced by one component, so that the processing cost is greatly reduced, and the processing efficiency is improved.

The application discloses an isolation assembly and an energy storage device, relates to the technical field of energy storage devices, and comprises a first protective piece, wherein the first protective piece comprises a first protective part, and the first protective part is made of insulating material. The first protective part comprises a plurality of isolation plates arranged at intervals, and each isolation plate is arranged between two adjacent wiring branches to insulate and isolate the exposed live parts of the plurality of wiring branches arranged side by side and at intervals, in particular the exposed live parts of the wiring branches, and to reduce the diffusion of circuit arc discharge between adjacent wiring branches, so that the safety hazard can be reduced and the loss can be reduced. The isolation assembly disclosed by the application prolongs the electrical gap by the second protective part with insulation performance, realizes the insulation isolation between the exposed live parts of each wiring branch arranged side by side, suppresses the diffusion of the single wiring branch circuit arc discharge phenomenon, reduces the safety hazard, and improves the safety protection performance.

The application provides a hanging adjustable phase type fuse type isolating switch, which comprises a switch body, a conductive busbar and a busbar clamp assembly arranged on the switch body, the busbar clamp assembly is movable along the length direction of the conductive busbar and is suitable for clamping an incoming line busbar, the busbar clamp assembly is arranged to be flexible in position, so that a user can freely take power according to own needs, and the production cost is greatly reduced.

The invention provides a packaging structure of a power semiconductor module, which relates to the technical field of semiconductor packaging and comprises a shell, a direct copper-clad ceramic substrate is fixed on the inner wall of the bottom of the shell, and a power semiconductor chip, a signal terminal and a power terminal are welded on the direct copper-clad ceramic substrate; insulating baffles are arranged at the connecting positions of the side faces of the shell, and / or insulating parts are arranged on the outer walls of the two sides of the shell in the width direction respectively. The beneficial effects are that on the premise of being compatible with the original installation environment, the electrical safety and the installation convenience are synchronously improved.

The invention discloses a switching device and an energy storage system, the switching device is used for a charging and discharging circuit, the charging and discharging circuit comprises a main loop and a pre-charging circuit, and the main loop comprises at least two branches; comprising first switches which are respectively arranged corresponding to each branch and are used for being connected to the corresponding branch; the second switch is used for being connected with the pre-charging circuit in parallel, and the second switch is further used for being connected with one of the first switches in series to a branch where the first switch is located; the first switch and the second switch are connected or disconnected according to a set sequence. The switching device provided by the invention has the advantages of fewer devices, simpler structure and control logic, lower cost and reduced occupied space while meeting the control function of the charging and discharging circuit.

The utility model discloses air disinfection equipment which comprises a shell, a main control unit, an ion generation part and a partition, the shell is used for forming a containing space, a metal strip is arranged on the outer surface of the shell, and at least part of the metal strip is exposed in the environment and can be in contact with a user; a large resistor is arranged in the accommodating space, one end of the large resistor is electrically connected with the metal strip, and the other end of the large resistor is grounded to form a first path; the main control unit is arranged in the accommodating space; the ion generation part is arranged in the accommodating space, is electrically connected with the main control unit and is used for generating and releasing electrons to the environment; and the baffle is arranged in the accommodating space, so that an electrical gap formed between a first section formed from the metal strip to the large resistor in the first path and other electronic components in the accommodating space exceeds a preset safety value. By adopting the mode, other electronic components can be effectively prevented from being damaged by high-voltage discharge, and the electrical reliability of the air disinfection equipment is improved.

The invention discloses a linear actuator with electrostatic protection, which comprises an actuating unit for providing an actuating torque, a screw rod driven by the actuating torque to rotate, an inner pipe which sleeves the outer side of the screw rod and is driven by the rotation of the screw rod to do linear telescopic motion, a shell which sleeves the outer side of the inner pipe, and a stroke control unit, the travel control unit comprises a first travel switch and a second travel switch, and the first travel switch and the second travel switch are distributed on the radial side of the inner pipe at intervals in the telescopic direction of the inner pipe, so that the telescopic travel of the inner pipe is limited; the linear actuator further includes a first insulator and a second insulator, the first travel switch being radially electrically isolated from the inner tube by the first insulator, and the second travel switch being radially electrically isolated from the inner tube by the second insulator. According to the linear actuator, electrostatic protection is carried out on the first travel switch and the second travel switch, the influence of static electricity on the two travel switches and the control unit can be avoided, and normal use of the linear actuator is guaranteed.

The application provides an adjustable fuse-type isolating switch, which comprises a switch body, a conductive busbar arranged on the switch body and a busbar clamp assembly. The busbar clamp assembly is movable along the length direction of the conductive busbar and is suitable for clamping an incoming busbar. A positioning structure is arranged between the busbar clamp assembly and the conductive busbar. The busbar clamp assembly can be flexibly moved, so that the user can freely take power according to the own needs, and the production cost is greatly reduced. The positioning structure can facilitate the movement of the busbar clamp assembly to the accurate position, so that the adjustment is more convenient and fast.