23results about How to "Reduce short circuit" patented technology

This utility model discloses a circuit breaker, belonging to the field of low-voltage electrical technology. The circuit breaker includes a contact structure and a leakage current test circuit. The contact structure includes a first moving contact and a conductive rod electrically connected to the first moving contact. The leakage current test circuit includes a test resistor and a spring contact. The test resistor has a first lead, and the first lead and the end of the conductive rod facing the spring contact are both abutted against and electrically connected to the first surface of the spring contact. The circuit breaker provided by this utility model adopts a lap-connection power extraction method to electrically connect the test resistor and the first moving contact, so as to realize the leakage current test circuit extracting power from the first end of the test resistor, effectively reducing the use of wires, that is, reducing the number of wire connection points and soldering points, reducing the risk of short circuit and leakage current test circuit failure, facilitating assembly, and effectively reducing manufacturing costs.

The invention relates to an energy storage device and a power utilization system. The energy storage device comprises a shell, an electrode assembly, an end cover assembly and a binding piece, wherein the shell is provided with an accommodating cavity; the electrode assembly is arranged in the accommodating cavity, the electrode assembly comprises a plurality of tabs and an electrode main body which are electrically connected, and the tabs and the electrode main body are arranged along a first direction; the end cover assembly is arranged on one side of the shell and used for sealing the containing cavity. The binding piece is positioned between the end cover assembly and the electrode main body; the binding piece is provided with a penetrating hole, and the penetrating hole penetrates through the two opposite surfaces of the binding piece in the first direction. The penetrating hole extends along a second direction, the plurality of tabs penetrate through the penetrating hole, and the first direction is intersected with the second direction; the penetrating hole is provided with a first side wall and a second side wall which are oppositely arranged in the second direction, and in the second direction, the distance between the first side wall and the second side wall is larger than the size of the ends, close to the electrode body, of the tabs.

The utility model relates to Christmas ball technical field especially one kind adopts the Christmas ball of environmental protection water-based paint, including shell and top cover, shell inner wall is connected with top cover thread, the upper portion of the inside of shell is equipped with sealing structure, the LED lamp is installed below top cover, the upper portion of LED lamp is connected with power cord electrically, the top cover is fixedly connected with fixed block, the inside of fixed block is equipped with limit structure. This adopts the Christmas ball of environmental protection water-based paint, inserts the elastic ring and sealing washer into the installation groove, the elastic ring can increase additional elasticity, make sealing washer always with top cover and shell resistance tightly, play the role of sealing, reduce the circuit in shell interior to be damped, trigger short circuit condition, bolt rotation drives the top block to move to the both sides slider along the inner wall of slide groove to slide, when the top block tightens the fixed block on the towline, stop rotating bolt, reduce when being subjected to external force, lead to the condition of fixed failure.

This application discloses a PCB interconnect structure for reducing carbon film resistance. The PCB interconnect structure for reducing carbon film resistance includes: a conductive carbon film and a substrate film; a copper foil contact assembly is disposed between the conductive carbon film and the substrate film; the copper foil contact assembly includes an upper copper foil and a lower copper foil, the upper copper foil being fixedly disposed at the conductive carbon film, and the lower copper foil being fixedly disposed at the substrate film. In order to solve the problem that the carbon film button produced by ordinary manufacturing process has a high carbon film resistance due to process problems in the prior art, this application designs a copper foil contact assembly. By setting the copper foil contact assembly, the conductivity of the conductive current can be effectively enhanced during use, and at the same time, a support structure is set to ensure the support gap between the conductive carbon film and the substrate film, thereby greatly reducing short circuits caused by accidental contact, and the use effect is better.

A circulating water pump motor for dish-washing machine is convenient for heat dissipation, which comprises a stator core, front and rear machine covers clamped and fixed at two ends of the stator core, bearing holes are formed at central positions of the front and rear machine covers, front butt joints are connected with front end covers through a plurality of front connecting ribs, front heat dissipation holes are formed between adjacent two front connecting ribs, the rear machine cover comprises a rear butt joint and a rear end cover, a rear clamping seat is arranged at an end surface of the rear butt joint, a rear end surface of the stator core is clamped and installed in the rear clamping seat, the rear butt joint is connected with the rear end cover through a plurality of rear connecting ribs, rear heat dissipation holes are formed between adjacent two rear connecting ribs. The front and rear heat dissipation holes constitute direct and effective heat dissipation channels, air convection between the inside and outside of the motor is promoted, and the operating temperature of the motor as a whole, especially the stator core and other heating components, is significantly reduced.

The utility model relates to a connector device capable of reducing connection space, and belongs to the technical field of battery connectors. The device comprises a wiring terminal, a conductive nut and a pressing rivet nut, a bent strip main body of the wiring terminal is laterally provided with a wire interface connected with a first wire, the bottom of the wiring terminal fixes a fuse and the pressing rivet nut through a bolt, and the pressing rivet nut is connected with a second wire. Through the integrated design of the bending structure of the wiring terminal and the fuse and the nut, the vertical layout of the two wires is realized, and the occupation of the transverse space is reduced by more than 50%. The device solves the problem of insufficient wiring space of the upper sealing cover of the sodium battery due to limitation of the bending radius of the lead, improves the space utilization rate and the connection reliability, and reduces the risk of short circuit through partition protection of the insulating layer.

This utility model discloses a control box and a freezer for a refrigerator, comprising: a box body, an installation cavity and a wire baffle plate inside the box body, the wire baffle plate having a first end and a second end, the first end being connected to one side wall of the installation cavity, and the second end being spaced from the other side wall of the installation cavity to form a first wiring interval; the wire baffle plate divides the installation cavity into a first cavity segment and a second cavity segment, and the first wiring interval connects the first cavity segment and the second cavity segment. A freezer includes a cabinet body and a control box for the freezer. The control box of this freezer has a wire baffle plate inside, which can prevent direct contact between the control board and other components, reducing the probability of other components accidentally touching the control board and causing short circuits or signal interference faults. Furthermore, the second end of the wire baffle plate is spaced from the side wall of the control box installation cavity to form a first wiring interval, which constrains the wiring path and reduces the risk of wiring deviating from the preset path and accidentally touching the control board.

This utility model discloses an electrolytic cell, including a side plate and a bottom plate. The side plate and the bottom plate are connected to form a cell body. The bottom plate is provided with several V-shaped grooves, which are arranged in parallel with each other. The V-shaped grooves extend along the length of the cell body. The V-shaped grooves at opposite ends of the bottom plate are connected to the side plate. An anode mud cone is provided at one opposite end of the bottom plate. The V-shaped grooves are all connected to the top of the anode mud cone. Under the condition of maintaining a constant width of the cell body, compared with the traditional single V-shaped bottom structure, this design can make the anode mud directionally accumulate inside the V-shaped grooves by arranging multiple V-shaped grooves in parallel along the horizontal direction at the bottom of the cell body. At the same time, by using the included angle (i.e., friction angle) parameter of the V-shaped grooves, the distance between the electrode plate and the bottom of the cell body can be effectively shortened, thereby achieving effective control of the overall height of the electrolytic cell, inhibiting the discharge of the electrolyte body along the bottom of the cell body, promoting uniform flow of the electrolyte between the electrode plates, and reducing the occurrence of electrolyte short circuits.

This invention relates to the field of lithium battery technology, and in particular to a method for preparing a lithium-ion battery cell. The invention discloses a method for preparing a lithium-ion battery cell, comprising: first, preparing a positive electrode slurry containing modified titanium aluminum carbide, graphene oxide, etc., and a negative electrode slurry containing aminated carbon nanotubes, zinc aluminum spinel, etc., both processed according to specific proportions and processes; second, coating the positive and negative electrode slurries separately onto a current collector, and obtaining positive and negative electrode sheets through drying, coating with a coating agent, etc.; next, preparing a composite separator coated with a separator coating agent and curing it; finally, winding the separator in a positive-separator-negative-separator sequence, and obtaining a lithium-ion battery cell through drying, encapsulation, electrolyte injection, formation, etc.

The utility model relates to energy storage device technical field especially, relates to a kind of energy storage box and energy storage system.Energy storage device includes box, ventilation mechanism and exhaust mechanism, and box is equipped with heat dissipation hole and air outlet.Ventilation mechanism includes driving element and the heat dissipation window of being movably installed in heat dissipation hole, driving element is transmission connection with heat dissipation window, to drive heat dissipation window to open or close heat dissipation hole.Exhaust mechanism includes fan, dust removal box and filter screen, filter screen is installed in dust removal box, and dust removal box is communicated with air outlet;Fan is configured to suck the air in box into dust removal box, and after filtering, it is discharged from air outlet.Energy storage system includes the energy storage box described above, ventilation mechanism realizes the air cooling of energy storage box, and the fan of exhaust mechanism sucks the air in box into dust removal box and discharges box, while improving the air cooling effect of energy storage box, it also realizes the filtration and collection of dust particles and other impurities through dust removal box, improves the safety and reliability of energy storage box.

Embodiments of the present application provide a semiconductor structure and a forming method thereof; wherein the semiconductor structure comprises: a substrate comprising a trench extending along a first direction; N-1 protruding structures arranged along a second direction on a surface of the substrate; heights of the N-1 protruding structures decrease successively along a direction close to the trench; N is greater than or equal to 2; a capacitor structure comprising N electrode plates successively covering surfaces inside the trench and extending along the second direction on the surface of the substrate, and dielectric layers between adjacent electrode plates; wherein an i-th electrode plate extends along the second direction to a surface of an N-i-th protruding structure; a topmost electrode plate on each protruding structure surface has a same height as an N-th electrode plate in the first direction.

This utility model relates to the field of battery technology, specifically a safe and reliable self-protecting short-circuit battery electrode protection structure. It includes a battery body, a protective plate fixedly mounted on the top of the battery body, and a mounting base fixedly mounted on the top of the protective plate. Through holes are provided in the middle of the mounting base and inside the protective plate. The advantages of this utility model are: through the cooperation between the battery body, protective plate, mounting base, through holes, metal conductive parts, semi-circular baffle, and return spring, it can effectively reduce the occurrence of short circuits caused by contact between the two ends of the battery body and metal or other conductors, thus ensuring battery safety. The cooperation between the mounting base and the mounting groove allows for easy disassembly of the mounting base. After the return spring loses its elasticity after prolonged use, it is easy to replace the semi-circular baffle with a new one. The operation is simple and convenient.

This invention relates to a negative electrode sheet, its preparation method, and a battery. The negative electrode sheet includes a current collector and an active material layer disposed on at least one surface of the current collector. A coating is disposed on the surface of the active material layer away from the current collector. The coating material includes modified lithium titanate. In this invention, a coating containing modified lithium titanate is disposed on the surface of the active material, which can effectively improve the safety of the battery cell during overcharging. The modified lithium titanate coating not only improves the chemical stability of the negative electrode interface and reduces internal heat generation during overcharging, but also effectively suppresses the excessive lithium plating caused by overcharging by the structural stability of the modified lithium titanate coating, thereby inhibiting lithium dendrite growth and greatly reducing short circuits caused by microperforations in the separator.

This invention proposes a fire-resistant insulation structure and fire detection method for a permanent magnet traction converter. The fire-resistant insulation structure includes a converter module, an isolating contactor, and a cabinet. The AC output terminal of the converter module is connected to the input terminal of the isolating contactor, and the output terminal of the isolating contactor is connected to the AC output terminal of the cabinet using a complete cable or a copper busbar with insulating material. This fire-resistant insulation structure fills the gaps in existing fire-resistant design and protection methods for permanent magnet traction systems, ensuring the operational safety of the permanent magnet traction system during application.

The invention relates to the technical field of new energy automobile charging piles, in particular to a new energy automobile full-automatic safety charging pile which comprises a charging pile cabinet fixedly installed on the ground, a six-axis mechanical arm fixedly installed on the charging pile cabinet, a charging gun installed on the six-axis mechanical arm, a sealing mechanism and an extrusion mechanism. By arranging the sealing mechanism, in combination with the sliding adaptation characteristic of the sliding plate, fitting guiding of the arc-shaped plate and double sealing protection of the sealing gasket and the inclined rubber strip, the effect of effectively preventing dust, rainwater and other impurities from entering the vehicle charging port is achieved, and the problem of charging interruption caused by the impurities is avoided; the occurrence probability of safety accidents such as short circuit and electric leakage is reduced; through the arrangement of the extrusion mechanism, the sealing mechanism is tightly attached to the vehicle charging port through guiding sliding of the abutting rod, uniform force application of the abutting piece and continuous elastic pushing linkage of the elastic piece, the sealing mechanism can adapt to curved surface structures on the peripheries of charging ports of different vehicle types, and the sealing reliability is enhanced.

The utility model provides a battery monomer fixing device, and relates to the technical field of battery testing, the battery monomer fixing device comprises a fixing seat, a driving pump and two clamping plates arranged oppositely, the two clamping plates are arranged on the fixing seat in a sliding manner, and the clamping plates are internally provided with first cavities for accommodating cooling liquid; the driving pump communicates with the first cavity channels of the two clamping plates and is used for pumping cooling liquid into the first cavity channels. According to the invention, the battery monomers can be cooled through the internal cooling liquid while the battery monomers are fixed, so that the temperature rise of the battery caused by frequent charging and discharging of the battery monomers is reduced or even avoided, and the possibility of thermal runaway and even explosion of the battery in the test process is reduced; and life and property safety in the test process is ensured.

A waterproof light bar and a waterproof rotary display mechanism relate to the field of electronic display products and comprise a waterproof shield, a waterproof glue layer, a first circuit board and LED lamp beads. Wherein the first circuit board is fixed to the waterproof protective cover, the plate face, deviating from the waterproof protective cover, of the first circuit board comprises a lamp bead mounting face and a non-lamp-bead mounting face, and the LED lamp beads are mounted on the lamp bead mounting face; the waterproof glue layer covers the plate face, close to the waterproof shield, of the first circuit board, the peripheral side faces of the first circuit board and the non-lamp-bead mounting face at the same time. The structural design of the waterproof light bar can improve the waterproof effect, reduce the failure rate of electronic components, prolong the service life and improve the image display quality.

This utility model provides a marine gas detector housing and a marine gas detector, relating to the field of detection equipment technology. The housing includes a base, an upper shell, and a sealing ring. The surface of the base facing the upper shell has a circumferentially surrounding groove. The upper shell is used to mount the base to form a cavity structure for accommodating the marine gas detector body. The upper shell includes a first shell, which includes a side wall and a top cover. The side wall is perpendicular to the top cover, and the end of the side wall away from the top cover has a flange that engages with the groove. The side wall has a first through hole for at least a portion of the marine gas detector body to extend out and a second through hole corresponding to the gas sensing part of the marine gas detector body. The sealing ring is embedded in the first through hole, and a flow guiding structure corresponding to the second through hole is provided on the inner side of the side wall. The surface of the flow guiding structure is coated with a hydrophobic coating. This utility model can effectively protect the gas detector inside the ship's cabin.

This invention provides a low-energy desulfurization tower liquid film assembly, relating to the field of flue gas purification. It includes an installation panel and several modules. Each module has a herringbone partition and two side liquid storage tanks. The bottom of the herringbone partition extends downwards to form a narrow, elongated channel with the liquid surface. A hydrophilic surface is provided at the corner of the bottom surface of the herringbone partition, and a water-breaking shoulder is provided at the bottom of the bottom surface. The slurry overflows from above the herringbone partition along the inclined surface. When it contacts the hydrophilic surface at the corner, the slurry rises along the bottom surface of the herringbone partition to form a bottom-attached water film. The flue gas to be purified is confined within the narrow channel between the bottom-attached water film and the liquid surface of the storage tank. This low-energy desulfurization tower liquid film assembly uses a continuous bottom-attached water film instead of discrete atomized droplets, eliminating gas-phase gaps between droplets. The flue gas is confined within the narrow channel and flows in parallel without impact, extending the gas-liquid contact time, increasing the effective contact area, reducing flue gas short-circuiting, and minimizing fluctuations in purification efficiency.

The utility model is suitable for medical instrument technical field provides a kind of surgical positioning forceps, including first forceps body and second forceps body, first forceps body is made of first forceps head and first handle, and second forceps body is made of second forceps head and second handle, first handle and second handle are all equipped with rubber-coated assembly, electrode lead and electrode plate, rubber-coated assembly includes first rubber-coated and second rubber-coated, and first rubber-coated is distributed with glue column, and glue column is engaged with the column hole distributed on second rubber-coated, to realize the quick connection of second rubber-coated and first rubber-coated and complete the wrapping of first forceps body and second forceps body, reduce assembly time, so that the whole handle part forms an integral structure, and it is convenient for operator to control it;And the step injection molding of first rubber-coated and second rubber-coated makes first forceps body and second forceps body can be relatively stable in mould, avoids the displacement or glue running phenomenon of first forceps body or second forceps body in injection molding process, ensures the overall appearance of surgical positioning forceps.

The application relates to a surgical instrument and a surgical system. The surgical instrument comprises a base, a connecting structure, an instrument structure, a sealing sleeve, a conductive element and an electrical connector. The connecting structure is connected to the base and is provided with a connecting groove; the instrument structure is arranged on the side of the connecting structure away from the base, and at least part of the structure is located in the connecting groove; the sealing sleeve is sleeved on the circumferential side of the instrument structure and the connecting structure to seal the instrument structure and the connecting structure from each other; the conductive element is at least partially exposed on the side of the base away from the connecting structure; and the electrical connector is arranged in the connecting groove and electrically connects the conductive element and the instrument structure. The surgical instrument has good sealing performance and high electrical connection stability between the conductive element and the instrument structure.