14results about How to "Avoid Electrical Failures" patented technology

The high-protection outer rotor axial flow fan comprises an outer rotor motor and a wind wheel, the outer rotor motor comprises a base, an outer rotor assembly, a rotating shaft and a stator assembly, and the base comprises a bottom plate and a sleeve protruding upwards from the middle of the top face of the bottom plate. The shaft support is installed on the two bearings, the top end of the shaft support is connected with the outer rotor assembly, the stator assembly is arranged outside the sleeve in a sleeving mode, an annular boss is arranged on the edge of the bottom plate, and a labyrinth sealing structure is formed by the annular boss and the end of the outer rotor assembly. The wind wheel comprises blades and a hub, the blades are installed on the outer side of the hub, and the hub is installed outside the outer rotor assembly through an installation support. The base is sleeved with an outer water retaining ring, an inner water retaining ring is installed on the installation support, and the outer water retaining ring and the inner water retaining ring are matched to form a water retaining device on the periphery of the labyrinth sealing structure. The waterproof and dustproof levels of the axial flow fan are greatly improved, the reliability is high, and the failure rate is low.

The utility model is suitable for the technical field of power equipment, and provides a power distribution cabinet convenient for hidden arrangement of cables, which comprises a power distribution cabinet body, and a guide rail plate is fixedly arranged in the power distribution cabinet body and is used for assembling an air switch and a leakage protection switch; the wire inlet and the wire outlet are respectively formed in one side and the bottom of the power distribution cabinet body and are used for connecting in and connecting out a cable; the first wiring groove and the second wiring groove are fixedly installed in the power distribution cabinet body through screws and used for wiring, and detachable cover plates are arranged on the first wiring groove and the second wiring groove and used for covering cables. The power distribution cabinet convenient for hidden arrangement of the cables provided by the scheme solves the problem that the cables of the existing power distribution cabinet are exposed and are not beautiful in arrangement.

This utility model provides an intelligent high and low voltage switchgear control device, which includes a high and low voltage switchgear body and a heat dissipation component. The heat dissipation component is detachably connected to the side wall of the high and low voltage switchgear body near the bottom end via a limiting component. The heat dissipation component includes a vent plate, which is detachably connected to the side wall of the high and low voltage switchgear body. The vent plate has multiple vent holes. A guide plate is integrally connected to the side wall of the vent plate, and a rain shield is integrally connected to the upper surface of the guide plate. Two cooling fans are detachably connected to the side wall of the rain shield. A duct is inserted through one side of the guide plate and passes through the vent plate. By setting up the structure composed of the guide plate and the rain shield, when water enters through the vent holes, rainwater can be guided into the guide channel and discharged through the duct, preventing rainwater from directly seeping into the interior of the high and low voltage switchgear body. This significantly improves the rainproof capability of the equipment, prevents electrical faults caused by rainwater, and ensures the safe operation of the equipment.

The utility model discloses an electric connection assembly of a battery equalization wire harness, which relates to the field of power battery systems and comprises a connector, a plurality of connecting wires are arranged on one side of the connector, each connecting wire is used for being electrically connected with a positive electrode or a negative electrode of a single battery cell of a battery, a connecting cap is arranged at the tail end of each connecting wire, and each connecting cap is provided with an oval inner cavity. The connecting cap is used for being arranged on a wiring terminal of a positive electrode or a negative electrode of a battery in a sleeved mode, a short rod is connected to the interior of the connecting cap in a threaded mode, an extrusion block is fixedly connected to the bottom end of the short rod, and the short rod and the axis of the extrusion block are arranged in a staggered mode. According to the utility model, the design of the connecting terminal, the short rod and the extrusion block are adopted, so that the fastening and clamping of the connecting terminal are realized, the reliable electric connection between the battery equalization wire harness and the battery cell is ensured, and the electrical fault caused by loose connection or poor contact is effectively prevented.

The application discloses a power supply circuit and an energy storage system, and relates to the technical field of power supply switching. The power supply circuit is connected with a load, and comprises a multi-path alternating current power supply and a first relay. The multi-path alternating current power supply comprises a first alternating current power supply and a second alternating current power supply. The power supply priority of the first alternating current power supply is higher than that of the second alternating current power supply. The first relay comprises a first coil, a first switch and a second switch. The input end of the first coil is connected with the firewire end of the first alternating current power supply. The output end of the first coil is connected with the zero line end of the first alternating current power supply. The first switch is connected with the firewire end of the load, and the second switch is connected with the zero line end of the load. The closing state of the first switch and the second switch is controlled based on the energization state of the first coil, so that the switching of the first alternating current power supply and the second alternating current power supply is realized. By setting alternating current power supply branches with different priorities and automatically switching to the highest priority available power supply by using the relay, the power supply stability is improved.

The utility model relates to a high-strength relay mounting box which comprises a box body and a mounting seat, a sealing cover is arranged at the top of the box body, a placing cavity for placing a relay is formed in the box body, reinforcing ribs are arranged in the placing cavity, and the reinforcing ribs are longitudinally and transversely arranged in a crossed manner to form a latticed structure. The mounting seat is fixedly mounted in the placement cavity through bolts, and the relay is fixedly mounted on the mounting seat. The box body is made of iron, and the mounting seat is made of plastic. The box body is made of an iron material, so that the mechanical strength is obviously higher than that of a traditional plastic protection box, and the box can bear larger external force impact and long-term vibration and is not easy to crack and damage.

The utility model discloses a new energy automobile signal connector device, which comprises a socket shell, a plug shell and matched electrical connection structures arranged in the socket shell and the plug shell, and further comprises a cylinder fixedly arranged at the side end of the socket shell; the handle is rotationally arranged on the outer side of the plug shell through a connecting structure; the arc-shaped groove is formed in the handle; and the elastic limiting structure is arranged on the socket shell. According to the utility model, firstly, the operation convenience is improved and the service life of the connector is prolonged through the rotating structure of the handle, secondly, the stable establishment of electrical connection is realized through the close fit of the pin mechanism and the insertion spring mechanism, the reliability of signal transmission and power supply is ensured, and the high requirements of automobile parts on electrical connection are met; and finally, by adopting a multi-stage sealing structure, the reliability of the connecting device is improved, and the service life of the connecting device is prolonged.

The application provides an arc extinguishing mechanism and a switch, and relates to the technical field of low-voltage electrical apparatuses. The arc extinguishing mechanism comprises an arc extinguishing chamber with an arc inlet. A permanent magnet is rotatably installed on one side of the arc extinguishing chamber close to the arc inlet. The permanent magnet is driven by the magnetic field generated by the conduction current, so that the magnetic field direction of the permanent magnet is consistent with the magnetic field direction generated by the conduction current, thereby effectively cooperating with the magnetic field generated by the current to guide the arc to flow into the arc extinguishing chamber. Through the rotatable installation mode, the permanent magnet can automatically adjust its position according to the change of the conduction current flow direction, thereby being able to adapt to the breaking requirements of forward and reverse currents and being suitable for more extensive application scenarios. Regardless of the forward current or the reverse current, the magnetic field of the permanent magnet can always guide the arc to the arc inlet, ensuring that the arc enters the arc extinguishing chamber in the shortest time, effectively inhibiting the persistence of the arc and avoiding the damage of the equipment and the electrical fault caused by the failure of the arc to be extinguished in time.

The invention relates to the technical field of electromechanical components, and discloses a quick-locking sealing connector which comprises a plug and a socket, the plug comprises a contact pin, a cable and a conical screw, the socket comprises a shell and a jack which is formed in the shell and corresponds to the plug, and a copper core climbs along an external thread which is gradually shrunk under manual assistance and is tightly wound on a rod part of the conical screw. The copper cores are arranged more orderly and normatively, bidirectional fastening between the copper cores and the conical screws, circumferential holding and limiting of the threads on the copper cores and winding and restraining of the screws by the copper cores can be achieved, the overall connection strength is greatly improved, external force such as vibration and pulling can be effectively resisted, loosening and falling are avoided, the structure can adapt to the copper cores of different lengths, and the service life of the copper cores is prolonged. The too long copper core can be wound for multiple circles, the too short copper core can be attached for few circles, the length of the copper core does not need to be trimmed like a traditional structure, meanwhile, the copper core attached in a climbing mode and the screw form stable large-area conductive contact, the remaining copper core is stored and positioned in cooperation with the containing hole, and conductive point positions are further increased.

The utility model discloses a modularized particle accelerator coil / magnet power supply case, which comprises a case main body, and a first back plate and a second back plate which are arranged in the case main body, and the first back plate and the second back plate are arranged face to face to divide an inner cavity of the case into a first compartment, a second compartment and a third compartment in sequence; the first compartment is used for placing a board card type control module, the third compartment is used for placing a board card type function module, and the second compartment is a wiring operation space for mutual connection of the modules; a plurality of quick-plug type connecting terminals are arranged on the plate face, facing the second compartment, of the second back plate, the quick-plug type connecting terminals are used for independently connecting all the function modules to the second back plate, and the quick-plug type connecting terminals are connected with one another through copper bars. According to the utility model, the power supply case is upgraded and reformed, so that the situation that the interior of the power supply case is disordered due to the use of a traditional wire is avoided, a reasonable ventilation channel can be planned in the case, and the heat dissipation effect is improved.

The utility model relates to a high-voltage distribution box, a battery pack and a vehicle, the high-voltage distribution box comprises a shell, a connector and a wire harness, the wire harness is fixed to the shell through the connector, the wire harness extends into the shell through the connector and is electrically connected with a connecting bar in the shell, and the connecting bar is arranged in the shell. The high-voltage distribution box can improve the reliability of wire harness connection.

The invention relates to the field of transfer platforms, and discloses a transfer platform towing cable device and a coke pouring tank efficiency improving method applying the same, and the device comprises a steel pipe penetrating through a transfer platform, a steel cable erected in a suspended manner, an 8-shaped rope fastener, a tensioning assembly and a buffer protection assembly. The method comprises the steps that a flexible guide channel is constructed, a cable is hung below a steel cable through a rope buckle to restrain the moving track of the cable, and winding and knotting are prevented; executing seasonal coarse adjustment, changing a steel cable passing path by selecting different adjusting holes in an adjusting pan head, and compensating deformation caused by seasonal temperature difference; fine adjustment in the operation period is implemented, an adjusting motor in the tensioning assembly is controlled to drive a connecting rod mechanism to act, and the axial tension of the steel cable is dynamically adjusted; graded buffering is triggered, an insulation protection plate is used for bearing friction, and an air spring is used for absorbing inertia impact energy of the cable. According to the invention, anti-winding guiding, tension self-adaptive adjustment and flexible buffering of the cable are realized, and continuity and safety of coke reversing operation are effectively improved.

This invention relates to a dispensing device and method for a medicine dispensing machine, addressing the technical problem in existing unmanned medicine vending machines where the saddle-top dispensing structure uses a built-in motor to push the medicine out of the dispensing channel. This requires a motor in each channel, resulting in complex structure and high manufacturing costs. The invention provides a dispensing device and method for an unmanned medicine vending machine. A push rod is mounted inside the housing via a rotating shaft. One end of the push rod has a push plate, and the housing has a push plate hole. The other end of the push rod has an arc-shaped rod. A drive plate is also slidably mounted inside the housing. A drive hole is provided in the housing for an external contact to extend into the housing and push the drive plate to slide within the housing. A pressure plate is provided on the upper surface of the drive plate, and the lower surface of the pressure plate is in contact with the upper surface of the arc-shaped rod to compress the arc-shaped rod, causing the push plate to extend out of the push plate hole and lift the bottom of the medicine box to be flush with the top of the baffle.

The utility model relates to the field of breast pumps, in particular to a breast pump host waterproof structure and a breast pump. The breast pump main machine waterproof structure comprises a main machine and further comprises an interaction assembly used for being operated by a user and / or used for being connected with external equipment, the main machine is provided with a main machine inner cavity used for installing electric appliance components and an interaction assembly installation hole communicated with the main machine inner cavity, and the interaction assembly has or is locally flexible. The interaction assembly is connected with the interaction assembly mounting hole in an interference fit mode so as to prevent water from entering the inner cavity of the host through the interaction assembly mounting hole. According to the utility model, water is effectively prevented from entering the inner cavity of the host through the connecting gap between the interaction assembly and the interaction assembly mounting hole, so that electrical faults caused by water invasion are avoided, the requirement of additionally arranging a waterproof cover or a sealing ring is reduced, and the structure of the host is simplified.