33results about How to "Avoid short circuit problems" patented technology

The application provides an alloy frame resistance loading platform and a laser processing device. The alloy frame resistance loading platform comprises: an insulating base module, comprising a loading platform base and an insulating base plate, wherein the loading platform base is configured to provide basic support, and the insulating base plate is arranged on the loading platform base and is configured to be partially insulated from the alloy frame resistance to avoid circuit short circuit during laser processing; a supporting and adsorbing module, arranged on the loading platform base and penetrating through the insulating base plate, configured to adsorb a frame entity part of the alloy frame resistance and avoid the hollowed-out area of the alloy frame resistance to avoid air leakage; and a positioning module, arranged on the loading platform base, configured to push the alloy frame resistance to a positioning reference position.

The utility model discloses a kind of multi-pass solenoid valve with power connection plate, comprising: multiple valve bodies and power connection plate, each valve body has a pair of same direction projecting insert, the power connection plate includes: multiple metal sheets for the conductive connection of the insert and power supply, and plastic layer covering the metal sheet, the metal sheet has wiring end connected with power supply and insert connection plug-in end, the plastic layer exposes the wiring end and the plug-in end, characterized in that, between adjacent two metal sheets, there is the bending part formed by punching cutting, the plastic layer is provided with at least part recess of covering the bending part, to prevent the rebound of bending part, thereby avoid the short circuit problem that multi-pass solenoid valve appears when working.

The utility model discloses a pole piece printing clamp based on adhesive layer lamination, and relates to the field of battery manufacturing. The first positioning piece is provided with a positioning groove capable of accommodating and positioning the pole piece group; the second positioning piece is provided with a printing groove and a plurality of liquid passing channels, the two opposite sides of the second positioning piece are provided with a first surface and a second surface correspondingly, the first surface is sunken to form the printing groove, and the liquid passing channels are formed in the groove bottom of the printing groove and penetrate through the second surface; when the first positioning piece is in a first state, the second surface is attached to the first positioning piece, the second surface and the positioning groove define a positioning cavity capable of containing and positioning a pole piece set, and the liquid passing channel communicates with the positioning cavity so that the liquid passing channel can be aligned with a pole piece suspension area of the pole piece set in the positioning cavity; and when the first positioning piece is in the second state, the first positioning piece is separated from the second positioning piece. According to the utility model, the adhesive layer can be efficiently and accurately formed in the pole piece suspension area of the pole piece group, and the problem of short circuit caused by internal collapse of the battery cell module in a pressure test due to the existence of the pole piece suspension area is solved.

This invention discloses a method for preparing tin dioxide hydrated colloidal precursors via dual-anode synchronous electrolysis, belonging to the field of electrochemical preparation technology of inorganic functional materials. The method includes the following steps: a) preparing an electrolyte containing 0.01 M hydrochloric acid and adjusting the initial pH value; b) using a high-purity tin plate as anode 1 and a titanium-based size-stabilized electrode as anode 2; using the titanium-based size-stabilized electrode as a common cathode; c) applying a DC voltage for constant-voltage synchronous electrolysis; anode 1 dissolves to generate stannous ions, anode 2 electrolyzes chloride ions to generate hypochlorous acid, and the hypochlorous acid instantly oxidizes the stannous ions to tetravalent tin ions in the bulk solution far from the cathode, forming a translucent tin dioxide hydrated colloidal precursor in situ in an acidic medium; d) drying the resulting colloid under reduced pressure and then calcining it at 200–250℃ to obtain high-purity nano-tin dioxide. This invention achieves integrated "dissolution-oxidation-gelation" through dual-anode synergy, avoiding the loss of hypochlorous acid during cathode reduction.

This utility model relates to a transformer body clamping structure, belonging to the field of transformer manufacturing technology. It includes a transformer body main body, comprising a core, coils on the outer side of the core, and core clamping components. The distributed clamping structure includes side yoke pads, a central yoke pad, and a central insulating pressure plate assembly. The distributed clamping structure is used to axially clamp the coils, and the side yoke pads, central yoke pads, and central insulating pressure plate assembly are all located between the core clamping components and the coils. The side clamping protection structure includes side channel steel, a side insulating pressure plate assembly, and coil pressing support strips. This utility model, through the distributed clamping structure and the side clamping protection structure, improves the heat dissipation capacity of the internal structure of the transformer body, reduces the risk of deformation of the internal structure during sudden short circuits, and significantly improves the transformer's short-circuit withstand capability.

This utility model relates to an anode, comprising an anode plate, an anode plate frame, a gas collecting chamber, a first diaphragm, and a second diaphragm. The anode plate frame defines an anode plate receiving space with front and rear openings. The anode plate is placed within this space, and the gas collecting chamber is located above and communicates with it. An acid mist outlet is provided on one side of the gas collecting chamber. The first diaphragm covers the front end of the anode plate frame to close the front opening of the anode plate receiving space, and the second diaphragm covers the rear end of the anode plate frame to close the rear opening of the anode plate receiving space. Furthermore, the periphery of the first diaphragm is detachably and sealingly connected to the front end of the anode plate frame and the front wall of the gas collecting chamber, and the periphery of the second diaphragm is detachably and sealingly connected to the rear end of the anode plate frame and the rear wall of the gas collecting chamber. This design avoids a series of adverse effects caused by the diaphragm contacting the anode and cathode during use.

The utility model discloses a combined circuit board, include: circuit female board and circuit daughter board, the outer edge of circuit female board is provided with the socket, one end of circuit daughter board is provided with the plug, the utility model discloses through the butt joint of plug and socket, realizes the connection of circuit female board and circuit daughter board circuit, then is provided with the tensioning assembly between plug and socket, makes plug and socket close adhesion, prevents the separation of plug and socket, leads to the circuit virtual connection of plug and socket inside, is provided with locking assembly on plug and socket simultaneously, is used for with circuit female board and circuit daughter board and carries out stable connection, prevents the shake between circuit daughter board and circuit female board, leads to the shake of plug and socket and circuit female board and circuit daughter board junction, causes the short circuit of circuit, thereby avoids the problem that traditional combined circuit board circuit is easy to short circuit.

This utility model discloses a battery, comprising: a casing having a receiving cavity, the casing having a lead-out wall surface, the lead-out wall surface having a first through hole communicating with the receiving cavity; a battery cell disposed within the receiving cavity, the battery cell including a tab assembly; a terminal assembly including a terminal body, a connecting piece, and an insulating and sealing connection layer, the connecting piece and the lead-out wall surface being welded together to form a solder mark, the connecting piece having a second through hole, the first through hole and the second through hole corresponding to each other, the terminal body being connected to the tab assembly, the terminal body including a sheet portion and a pillar portion, the pillar portion passing through the first through hole and the second through hole, the sheet portion and the pillar portion being connected, the insulating and sealing connection layer being disposed between the sheet portion and the connecting piece; and an insulating member disposed between the tab assembly and the casing, wherein, in the length direction of the battery, the orthographic projection of the insulating member on the lead-out wall surface at least partially covers the solder mark. The battery of this utility model embodiment not only has good sealing performance and simple manufacturing process, but also high energy density.

The invention discloses a transistor, a preparation method thereof, a semiconductor device and electronic equipment. The transistor includes a channel, a gate structure, a first pole assembly, and a second pole assembly. The gate structure includes a gate electrode. The first pole assembly and the second pole assembly are located on the two sides of the gate structure in the first direction respectively and connected with the channel. The orthographic projection of at least one of the first pole assembly and the second pole assembly on the substrate is overlapped with the orthographic projection of the channel on the first plane; or, the orthographic projection of the first pole assembly and the orthographic projection of the second pole assembly on the first plane are not overlapped with the orthographic projection of the channel on the first plane, and the two ends of the gate structure in the first direction are correspondingly flush with the two ends of the channel in the first direction. According to the transistor and the preparation method thereof, the semiconductor device and the electronic equipment, the distance between the gate electrode and the source / drain electrode can be reduced, and the electrical property of the transistor can be improved.

The utility model discloses a threaded vertical plate evaporation equipment, including base, the top center position fixed mounting stand of base, spiral flow channel, spiral flow channel spiral installation is on the outer wall of stand, the inner wall of spiral flow channel is equipped with evaporation flow channel, the inner wall of evaporation flow channel evenly is provided with vertical plate the utility model belongs to evaporation equipment technical field, the utility model discloses the purpose is in the prior art in the limited space cannot effectively increase the contact area of water body and air, reaches the technical effect for: spring -like spiral flow channel has prolonged the liquid flow path, and the overflow structure formed by vertical plate makes liquid need to fill the current water storage space after can enter next space, and the residence time of liquid in evaporation flow channel is forced to prolong, and this design effectively avoids the short circuit problem caused by liquid flow too fast in traditional equipment, and the contact area is increased, and the evaporation efficiency is improved significantly, and the liquid processing speed is accelerated.

The invention relates to a biomass gasification system and a gasification method. The gasification system comprises a pressurized feeding unit, a fluidized bed gasification unit, a deslagging unit, an entrained-flow bed high-temperature cracking unit, a synthesis gas washing unit, a slag water unit and a gasification agent conveying unit, the fluidized bed gasification unit comprises a fluidized bed gasification furnace and a high-temperature cyclone separator; the fluidized bed gasification furnace is connected with the pressurized feeding unit, the gasifying agent conveying unit, the high-temperature cyclone separator and the deslagging unit; the entrained-flow bed high-temperature cracking unit comprises an entrained-flow bed high-temperature cracking furnace, and the entrained-flow bed high-temperature cracking furnace is connected with a high-temperature cyclone separator, a gasifying agent conveying unit, a synthesis gas washing unit and a slag water unit. Compared with the prior art, the invention couples the advantages of the fluidized bed and the entrained-flow bed, and has the characteristics of wide raw material applicability, high effective gas content, no tar, low energy consumption and the like.

The utility model relates to the technical field of lamp fixing devices, and particularly discloses a wire waterproof tensile device for a landscape lighting lamp, an upper cover is provided with a barb matched with a clamping groove, a lower cover is provided with a first arc-shaped groove penetrating through the two ends of the upper cover, and a first sealing gasket and an anti-skid belt are laid in the first arc-shaped groove; the first sealing gaskets are located at the two ends of the first arc-shaped groove, the anti-skid belt is located in the middle of the first arc-shaped groove, the upper cover is provided with a second arc-shaped groove penetrating through the two ends of the upper cover, and a second sealing gasket and a buffering gasket are laid in the second arc-shaped groove. The electric wire is effectively prevented from moving due to manual pulling, gaps are avoided, meanwhile, the waterproof capacity of the connecting position of the electric wire and the lamp tube is improved, the short circuit problem is avoided, and the service life of the lamp is guaranteed.

The application discloses a circulating fan for dry quenching system and relates to the field of circulating fans, which comprises a fan shell, an air inlet, an air outlet, an air inlet flange, a cleaning cylinder arranged at the air inlet of the fan shell, a filter cylinder arranged in the cleaning cylinder, wherein the filter cylinder is in the shape of a truncated cone, the smaller end of the filter cylinder is arranged away from the fan shell, and a wind guide cylinder corresponding to the filter cylinder is arranged at the end of the cleaning cylinder away from the fan shell; and a dust collecting unit is arranged at the end of the filter cylinder close to the fan shell, which is used for collecting and treating the impurities filtered out. The cleaning cylinder with the filter cylinder in the shape of a truncated cone is arranged at the air inlet of the fan, the coke powder and dust impurities in the circulating gas are completely filtered out before entering the fan shell through the front filter structure, the problems of the erosion and abrasion of the fan impeller and the internal flow channel and the flow channel blockage caused by the dust are avoided from the root, the operation failure rate of the fan is significantly reduced, and the service life of the whole machine is prolonged.

The application belongs to the technical field of fuel cells, and particularly discloses a fuel cell composite bipolar plate and an assembling method thereof, which comprises an anode plate frame and a cathode plate frame matched with the anode plate frame, an embedded anode graphite plate is arranged on the inner ring of the anode plate frame, a first sealing ring is arranged between the anode plate frame and the embedded anode graphite plate, an embedded cathode graphite plate is arranged on the inner ring of the cathode plate frame, and a second sealing ring is arranged between the cathode plate frame and the embedded cathode graphite plate; and the anode plate frame is fixedly connected with the cathode plate frame through a buckle structure. The fuel cell composite bipolar plate and the assembling method thereof are adopted, so that good conductivity and heat conductivity are realized without being crushed, the cost is reduced, the assembly complexity is simplified, and the assembly reliability is improved.

The invention discloses a battery, and belongs to the technical field of electronic equipment. The insulating part is additionally arranged in the battery, and the second pole piece main body part of the battery is arranged between the inner side edges of the insulating part, so that the insulating part can be positioned on the periphery of the second pole piece main body part and surrounds at least partial area of the second pole piece main body part to limit the second pole piece main body part; the ratio of the projected area S1 of the insulating part on the single-layer diaphragm to the area S2 of the single-layer diaphragm is controlled to meet the condition that S1 / S2 is more than or equal to 0.005 and less than or equal to 0.07, so that the insulating part can be ensured to have a sufficient isolation effect, and two pole pieces with opposite polarities in the battery are prevented from being in contact short circuit; and meanwhile, the viscosity of the chain carboxylic ester electrolyte in the electrolyte is relatively small, and when the mass content of the chain carboxylic ester is within the range of 5-65%, the problems of low electrolyte infiltration rate and poor internal infiltration of the battery cell caused by arranging an insulating part in the battery cell can be improved, so that the cycle life of the battery cell is prolonged.

The application relates to the technical field of semiconductors, in particular to a purification system for semiconductor wet chemicals, which comprises a negative pressure assembly, a bottle body capable of containing a high-purity degassing membrane, a first sealing plate and a second sealing plate arranged at two ends of the bottle body, a liquid inlet arranged on the outer wall of the first sealing plate, a liquid outlet, a gas outlet, a liquid outlet arranged on the outer wall of the second sealing plate, and a two-way diaphragm winding structure formed by a center column and an isolation column, which effectively enlarges the contact area of the wet chemicals, avoids the short circuit problem of the flow path, and greatly improves the degassing efficiency. Meanwhile, a full-sealing gasket sealing design is combined to prevent the invasion of external impurities and secondary pollution caused by chemical oxidation.

This application discloses a device for improving the vibration resistance of a parking air conditioning battery, comprising a battery and an automotive welding tray. The battery includes a battery cover, a battery casing, and a battery storage compartment. The battery cover is connected to the battery casing, and the battery casing is at least partially housed within the battery storage compartment. A buffer assembly is provided between the automotive welding tray and the battery, and the automotive welding tray is connected to the battery storage compartment through the buffer assembly. There are at least two sets of buffer assemblies, symmetrically arranged around the center of the battery storage compartment. This device for improving the vibration resistance of a parking air conditioning battery can effectively absorb and buffer the impact force generated by vehicle vibration during vehicle operation, thereby improving the vibration resistance of the parking air conditioning battery, ensuring the stability and service life of the battery, and extending the battery's lifespan.

The utility model discloses a kind of prevent stupid structure for lead-acid battery, to solve the deficiency of the symmetry of the position of the pole post of the existing lead-acid battery and easily misplace. The utility model includes shell, pole group being set in shell, busbar being attached with the pole lug of pole group, pole post being set on busbar and battery top cover, lead-acid battery is equipped with two pole posts, at least one pole post is located in the axis of battery top cover, battery top cover is equipped with the opening hole of adapting pole post position, the orientation of battery top cover is limited by adjusting the position of pole post, avoid the short circuit problem of subsequent use caused by reverse installation.

The utility model relates to battery technical field discloses a kind of winding type electric core and battery, winding type electric core has straightaway and circular arc area, winding type electric core includes polar plate and diaphragm of laminated and winding arrangement;Polar plate includes current collector and active layer, active layer is located at the at least one side of current collector, active layer includes circular arc segment and straightaway, circular arc segment is located in circular arc area, straightaway is located in straightaway, and circular arc segment is equipped with positioning groove;Winding type electric core further includes ion-conducting membrane, at least part of ion-conducting membrane is located in positioning groove, and ion-conducting membrane is arranged between polar plate and diaphragm.The utility model of winding type electric core is by being provided with positioning groove on polar plate, the relative position of ion-conducting membrane and polar plate is limited, so that ion-conducting membrane can continuously insulate the burr of the part of polar plate located in circular arc area, reduce the probability of battery self-discharge.

The utility model relates to a self-cleaning plasma generator for combustible medium plasma ignition, which comprises an anode assembly and a cathode assembly which are matched with each other to generate plasma, and the cathode assembly is detachably inserted in the anode assembly. An insulation assembly capable of carrying out antifouling wrapping on the cathode assembly to isolate the cathode from the anode is arranged between the anode assembly and the cathode assembly; the outer side of the anode assembly is further provided with a purging assembly which can be inserted into a plasma generation cavity defined by the anode assembly to conduct airflow purging cleaning on the cavity space and pull plasma to flow directionally. The electrode has an anti-pollution clean structure, so that the ionization stability and reliability of the electrode are improved.

The application relates to a passive electromagnetic grounding lock which comprises a mounting base plate, a lock body shell, a grounding lock mechanism, a locking mechanism, an unlocking mechanism and a trigger switch device, the lock body shell is sleeved outside the mounting base plate, one end of the mounting base plate is provided with a waterproof joint, an inner thread is arranged on the inner wall of the waterproof joint, an insertion hole is arranged on the vertical end of the mounting base plate, and the grounding lock mechanism and the locking mechanism are arranged on the outer end and the inner end of the insertion hole of the mounting base plate respectively; the unlocking mechanism is arranged on the inner side wall of the mounting base plate and located at one side of the locking mechanism; the trigger switch device is arranged on the inner side wall of the mounting base plate through a supporting rod and located at one end of the locking mechanism; the inner thread of the waterproof joint can be matched with the outer thread of a stainless steel sleeve wrapped outside a signal line and a power line, and no additional connecting sleeve assembly is needed, so that quick connection is realized.

The utility model provides a kind of battery pack, overcome the problem of excessive local heat of monomer battery pole in existing battery pack, and cause heat runaway. The battery pack includes shell assembly, at least one electrically conductive heat exchange device and battery pack string;The inner chamber of shell assembly is divided into first area and second area isolated from each other in z direction;First area is used to place at least one battery pack string, and the size of first area along x direction is compatible with the size of battery pack string along x direction;Second area needs to ensure that electrically conductive heat exchange device is located in second area as a whole;Electrically conductive heat exchange device corresponds to battery pack string one by one, and electrically conductive heat exchange device is connected with the part of each monomer battery polarity terminal located in first area;Second area is filled with insulating sealant layer, and at least a part of electrically conductive heat exchange device and each monomer battery polarity terminal is wrapped in insulating sealant layer.

The utility model relates to the technical field of display screen mounting, and discloses a buckle structure for mounting and dismounting a vehicle-mounted LED display screen, which comprises a mounting plate, two sliding grooves are formed in the top of the mounting plate, L-shaped plates are connected to the inner walls of the sliding grooves in a sliding manner, a display screen plate is fixedly connected to the tops of the L-shaped plates, and the display screen plate is fixedly connected to the top of the mounting plate. A stop block is fixedly connected to the rear side of the middle of the top end of the mounting plate, two U-shaped buckles are fixedly connected to the rear side of the display screen plate, two discs are fixedly connected to the rear sides of the U-shaped buckles, and two second fixing blocks are fixedly connected to the rear side of the top of the mounting plate. According to the display screen panel mounting device, the connecting column is pulled out, the clamping column is pushed to be clamped with the connecting column, the position of the baffle is fixed, after the U-shaped buckle enters the inner side of the second fixing block, the disc extends out of the groove of the second fixing block under the action of the baffle, mounting of the display screen panel is achieved, the operation steps are simple, and the mounting efficiency is improved.

The application discloses a kind of battery module disassembly methods, comprising the following steps: (1) the positive and negative pole connecting piece of battery module to be disassembled is milled, and the milled battery module is obtained;The milled battery module is frozen, and the frozen battery module is obtained;(2) organic solvent is reduced pressure and heated, and organic vapor is obtained;Organic solvent is one or more of n-butanol, n-pentanol, phenethyl alcohol, dimethyl hexanol;(3) the frozen battery module is placed in airtight reaction tank, and organic vapor is introduced into airtight reaction tank for organic vapor treatment, and the battery module after organic vapor treatment is obtained;(4) the battery module after organic vapor treatment is disassembled, and the monomer fixed glue in the battery module after organic vapor treatment is removed, and the battery monomer is obtained.The application can reduce the disassembly difficulty of battery module.

The utility model relates to the technical field of batteries, and provides a cover plate structure, a battery, a battery pack and electric equipment.The cover plate structure comprises a cover plate main body, a connecting terminal and an insulating structure, a first through hole is formed in the cover plate main body and located on the side, back to a pole core, of the cover plate main body, and a supporting platform is formed on the connecting terminal and located on the side, back to the pole core, of the cover plate main body; the connecting terminal comprises a second through hole penetrating through the supporting platform, the second through hole is communicated with the first through hole, and the first through hole and the second through hole are suitable for a tab to penetrate through, so that the tab is connected to one side, back on to the pole core, of the supporting platform; the insulation structure is arranged between the cover plate main body and the connecting terminal so as to form insulation between the cover plate main body and the connecting terminal, the insulation structure further covers the inner wall of the first through hole, and at least part of the insulation structure is arranged on the cover plate main body in an injection molding mode. According to the embodiment of the invention, the safety performance and the capacity of the battery can be improved.

This utility model provides a battery electrode, a battery cell, and a battery, comprising: a substrate and active material layers disposed on two opposing surfaces of the substrate; the battery electrode has a first region and a second region, and the two active material layers have opposing windows at one end of the battery electrode, the first region being the substrate exposed by the windows; the second region being a groove formed by the recess of the battery electrode from one end to the other. By providing opposing windows at one end to expose the substrate to form the first region, and providing recessed grooves to form the second region, multiple technical effects are achieved: the window design of the first region facilitates the welding connection and current conduction of the electrode, improving the conductivity and assembly efficiency of the battery; the groove structure of the second region effectively increases the distance between the positive and negative electrodes, avoiding short circuit problems caused by burrs, deformation, or mechanical stress at the electrode edges.

The application provides a method and device for self-test of configuration memory in FPGA. The method comprises the following steps: firstly, locking the input of all multiplexers (MUX) in the FPGA to the same level; writing a first preset vector into the configuration memory based on a shift chain in parallel form; then, reading the configuration memory based on the shift chain to obtain first readout data; when the first readout data is consistent with the first preset vector, writing a second preset vector into the configuration memory based on the shift chain; reading the configuration memory based on the shift chain to obtain second readout data; when the second readout data is consistent with the second preset vector, determining that the configuration memory passes the test. In this way, the test path is parallelized, the test speed is accelerated, the input end of the MUX is fixed to the same level, and the short circuit problem is avoided. The distributed memory is automatically traversed and tested, the read and write vectors are not limited, and thus the test work is completed.

The application provides a bird repelling device and a method for electrifying installation of the bird repelling device. The bird repelling device comprises a shell cover arranged on a bottom plate, a containing cavity formed between the shell and the bottom plate, a power generation assembly comprising a power supply, an output, a first power transmission wire and a second power transmission wire, the power supply and the output being arranged on the bottom plate, the power supply being electrically connected with the output, the output being provided with a first connecting port and a second connecting port, the first connecting port and the second connecting port having a potential difference, an end of the first power transmission wire being arranged on the first connecting port, part of the first power transmission wire being located outside the containing cavity, an end of the second power transmission wire being arranged on the second connecting port, and a magnetic attraction member being arranged on the bottom plate and capable of being magnetically attracted to a power tower. Through the technical scheme provided in the application, the problem that the bird repelling effect is poor in the related art and the bird repelling device needs to be installed on an overhead transmission line by means of power-off by pulling a brake, thereby leading to complicated installation and affecting the normal operation of a power system can be solved.

This utility model relates to the field of battery manufacturing technology, and discloses a tab welding mechanism and welding machine. The tab welding mechanism has two perpendicular directions: a first direction, a second direction, and a third direction, and includes a welding head and a welding base. The welding head has a bent portion and a first welding tooth at one end facing the welding base, and the bent portion protrudes from the first welding tooth along the third direction. The welding base has a second welding tooth and a through groove at one end facing the welding head, the second welding tooth corresponding to the first welding tooth along the third direction, and the through groove corresponding to the bent portion along the third direction. The through groove is used to accommodate at least a portion of the bent portion. The welding head and the welding base can move towards each other along the third direction. The beneficial effects of this utility model are: pre-bending can be performed during the welding of multi-layer tabs on bare battery cells, simplifying the structure, reducing costs, ensuring the consistency of the bent tabs, improving production efficiency, and avoiding the problem of short circuits during core assembly.