10results about How to "Increase electrical clearance" patented technology

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 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 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 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.