19results about How to "Avoid electrical connection" patented technology

The utility model relates to the technical field of battery cells, and discloses a tab connecting structure of a high-capacity soft package battery cell, which comprises a plurality of battery cell bodies, the plurality of battery cell bodies are sequentially stacked and distributed, one side of each battery cell body is provided with a positive tab and a negative tab, and the positive tabs and the negative tabs of the plurality of battery cell bodies are sequentially distributed at intervals along the stacking direction; conductive plates for supporting the corresponding positive tabs or negative tabs are arranged between the positive tabs or the negative tabs on the same side of the plurality of battery cell bodies; the upper surface and the lower surface of the current-conducting plate are respectively provided with a tab pressing plate, a fixing space for inserting a tab is arranged between each tab pressing plate and the upper surface or the lower surface of the current-conducting plate, and the tab pressing plates are fixed on the current-conducting plate and are locked with the tabs into a whole through the fixing spaces. The utility model has the beneficial effects of simple structure and stable tab connection.

According to the main-grid-free battery string and the preparation method thereof disclosed by the invention, direct contact between a grid line and a welding strip is avoided by arranging a conducting layer, so that tin-silver alloy formed by grid line silver paste and tin on the welding strip during welding of the welding strip is avoided, the over-welding problem is reduced, and electric connection between the special-shaped grid line and the welding strip is avoided by arranging an insulating layer. Furthermore, the height of the conductive layer is larger than that of the insulating layer, so that the welding strength and the electric connection between the welding strip and the conductive layer are ensured. Or the height of the conductive layer is smaller than the height of the insulating layer by adopting a specific preparation process, and meanwhile, electric contact between the welding strip and the conductive layer is realized.

This invention relates to the field of lithium battery heat dissipation technology, specifically disclosing a heat dissipation device for lithium battery packs, comprising a support plate and a top plate. The support plate and the top plate are arranged longitudinally symmetrically in parallel. Multiple sets of coaxially corresponding mounting holes 1 and 2 are arrayed along the length direction on their opposite end faces. Hollow sealing rings are fixedly installed on the inner walls of both mounting holes 1 and 2. Two symmetrically arranged side plates 1 and 2 are fixedly connected to the two side edges of the support plate and the top plate. The support plate, the top plate, the side plates 1 and 2 together form a cavity structure for accommodating the lithium battery pack and heat dissipation components. Several fan support frames are arrayed along the length direction of the side plates 1 facing the inner side of the cavity, and each of the fan support frames is equipped with a corresponding heat dissipation fan. The air outlet direction of the heat dissipation fan faces the inner cavity. This invention addresses the problem of the single heat dissipation function of lithium batteries.

The embodiment of the utility model provides a radiator and power equipment. The power equipment comprises a power module, the power module comprises a heating device, a metal heat dissipation substrate and a packaging body, the heating device is arranged on the surface of the metal heat dissipation substrate, and the packaging body packages the heating device. The radiator is used for radiating heat for the heating device, specifically, when the radiator is arranged, the radiator comprises a radiator body and an insulation structure arranged on the surface of the radiator body, the insulation structure covers part of the surface of the radiator body, and the insulation structure is used for being in heat conduction connection with the metal radiating substrate. The surface of the radiator body is provided with the insulation structure, so that the radiator has a self-insulation function, a ceramic substrate in the power module can be omitted when the power module is arranged, the problem that the insulation and voltage resistance of the power module fails due to the fact that the ceramic substrate cracks in the packaging process is solved, and the service life of the power module is prolonged. And the production yield and the reliability of the power module are improved.

The invention discloses a back contact battery and a preparation method thereof, and a photovoltaic module. The back contact battery comprises a battery body, wherein the battery body is provided with a first surface and a second surface which are oppositely arranged; the first current collection electrodes and the second current collection electrodes are arranged on the first surface, the first current collection electrodes and the second current collection electrodes are alternately arranged at intervals in the first direction and extend in the second direction, first insulation parts are arranged on the first current collection electrodes, and second insulation parts are arranged on the second current collection electrodes; the first insulating part and the second insulating part are arranged at an interval in the second direction; the first connecting conductor is arranged on the second insulating part, extends along the first direction and is electrically connected with the plurality of first collector electrodes; the first electric connection part is arranged between the first insulation part and the second insulation part and is electrically connected with the first collector electrode. By adopting the electrode structure, the design of the opening structure in the screen printing plate is facilitated, the processing steps can be simplified, and the preparation efficiency of the electrode is improved.

The utility model relates to the technical field of batteries, in particular to a battery pack which comprises a battery box body, cylindrical batteries and a fixing plate, the cylindrical battery is arranged in the battery box body, two end surfaces of the cylindrical battery are respectively a first surface and a second surface, the cylindrical surface of the cylindrical battery is a third surface, the first surface and the second surface are arranged at an interval in a first direction and are respectively vertical to the first direction, the first direction is the axial direction of the cylindrical battery, and the third surface is connected between the first surface and the second surface; the connecting area of the third surface and the first surface is provided with a first welding mark, the third surface is provided with a first insulating layer, and the first insulating layer does not cover the first welding mark; the fixing plate is arranged on the third surface of the cylindrical battery and is made of a metal material; the fixing plate and the third surface are oppositely arranged and are fixedly connected; wherein the first welding mark and the fixing plate are arranged at an interval, and in the first direction, the minimum distance between the first face and the adjacent edge of the fixing plate ranges from 1.5 mm to 30 mm.

The present invention relates to the technical field of flue gas purification devices, and specifically discloses an electrostatic field and an installation method thereof, and a flue gas purification system. The present application discloses an electrostatic field that integrates square tubes into a plate-shaped cathode frame, and by installing an insulator between two opposite surfaces of the plate-shaped cathode frame and a mounting plate, one end of the insulator is fixedly connected to the cathode frame, and the other end is fixedly connected to the mounting plate. That is, the insulator is clamped by the cathode frame and the mounting plate. At this time, regardless of whether the mounting holes at both ends of the insulator are coaxial, after the holes for mounting the insulators at the mounting plate or the cathode frame are enlarged, the insulator arranged between the plate-shaped cathode frame and the mounting plate can still be well clamped, and the cathode plate and the cathode frame can still remain stable during the flow of flue gas, that is, the polar distance of the electrostatic field is stable, ensuring that the polar distance of the electrostatic field is stable so that the flue gas can be stably purified.

The application provides a display substrate and a manufacturing method and a display device. The display substrate comprises a back plate, a front body layer, and a display chip. The back plate is provided with a driving circuit. The front body layer is arranged on the back plate and comprises a conductor unit, a void and a front body. The conductor unit and the void are arranged in the front body. The display chip is arranged on the front body layer. Electrodes of the display chip are electrically connected to corresponding pads on the driving circuit through the conductor units. The application can improve the short circuit or open circuit phenomenon of the display chip caused by the warping of the transfer substrate.

The vertical conductive adhesive manufacturing method comprises the following steps that a metal elastic piece base body is manufactured, an elastic metal sheet is manufactured into the metal elastic piece base body with a plurality of single elastic pieces through a subtractive machining technology, and the metal elastic piece base body is of an elastic metal sheet upper and lower end connecting structure; a separation gap formed by a subtractive machining process is formed between every two adjacent single elastic sheets; manufacturing a clamping groove plate, wherein the clamping groove plate is provided with a clamping groove corresponding to the metal elastic piece base body; manufacturing an insulating plate, wherein the insulating plate is connected with the bottom surface of the clamping groove plate; filling liquid insulating elastic glue, pouring the liquid insulating elastic glue into the clamping groove, and filling the space between the separation gap and the insulating plate and between the inner side surface of the metal elastic part base body and the insulating plate; after the liquid insulation elastic glue is solidified, processing the two ends, connected up and down, of the metal elastic piece base body until the monomer elastic pieces are separated from each other, and releasing the connection to obtain the metal elastic piece; and after the metal elastic piece is manufactured, the clamping groove plate is removed.

The invention provides a semiconductor structure and a preparation method thereof, relates to the technical field of semiconductors, and is used for solving the technical problem that a conductive bonding pad is etched through and damaged. The semiconductor structure comprises a substrate with a first groove, a capacitor, the conductive bonding pad and a first conductive plug; the capacitor is arranged in the first groove, and the capacitor comprises a first electrode layer, a dielectric layer and a second electrode layer which are stacked in sequence; the conductive bonding pad is arranged on the substrate and is electrically connected with the first electrode layer; the conductive pad comprises a compensation layer and a conductive layer which are stacked; the first conductive plug is arranged on the substrate; the end, close to the substrate, of the first conductive plug extends into the compensation layer and is spaced from the surface, close to the compensation layer, of the substrate. According to the invention, the thickness of the conductive pad is increased, the conductive pad is prevented from being etched through, and the contact area of the conductive pad and the first conductive plug is increased.

The present invention relates to a battery cell, a battery and an electric device. The battery cell comprises: a housing having a receiving cavity and a mounting hole connected to the receiving cavity; a battery cell comprising a battery cell body received in the receiving cavity and a pole ear connected to one end of the battery cell body facing the mounting hole; and a pole assembly comprising a pole installed at the mounting hole on the housing, the pole having a through hole, the pole ear comprising a first section connected to the battery cell body and a second section connected to one end of the first section away from the battery cell body, the first section being arranged through the through hole, the second section being located on the side of the pole away from the battery cell body, and being welded and fixed on the pole using a conductive material as solder, the melting point of the conductive material being lower than the melting points of the pole ear and the pole.

The present application relates to the technical field of direct current power management and fault monitoring, and discloses a multi-dimensional abnormal early warning monitoring method and system in direct current power management, comprising: configuring a passive induction sheet in the center area of the top surface of the explosion-proof valve of the electrolytic capacitor in the direct current power supply; determining a signal acquisition pair between the passive induction sheet and the cathode of the electrolytic capacitor, and connecting a negative bias ADC channel and a polarity ADC channel in parallel on the signal acquisition pair; monitoring the negative direct current bias signal and the polarity inversion signal of the signal acquisition pair through the negative bias ADC channel and the polarity ADC channel respectively; analyzing the monotone increasing trend of the negative direct current bias signal and the relaxation time of the polarity inversion signal respectively; and realizing early failure warning of the electrolytic capacitor in the direct current power supply based on the monotone increasing trend and the relaxation time. The present application can realize long-term, online and non-interference early warning of the early failure phenomenon of the electrolytic capacitor in the direct current power supply under real working conditions.

The invention provides a semiconductor structure. The semiconductor structure comprises a circuit layer, an island-shaped conductive layer, a magnetoresistive random access memory unit, a bit line and a via hole, the circuit layer is arranged on the substrate. The island-shaped conductive layer is arranged on the circuit layer. The magnetic resistance type random access memory unit is arranged between the island-shaped conductive layer and the circuit layer, and is electrically connected with the island-shaped conductive layer and the circuit layer. The bit line is arranged on the island-shaped conductive layer. The via hole is arranged between the bit line and the island-shaped conductive layer. The island-shaped conductive layer is in contact with a top surface of the magnetoresistive random access memory cell.

The invention discloses an alarm lamp post tester device which comprises a supporting plate, an alarm lamp post body is installed on the supporting plate, the plug-in ends of the two ends of the alarm lamp post body are electrically connected with wires and comprise light-emitting diodes, and one ends of the wires are electrically connected with the light-emitting diodes. When the light-emitting diode emits light, it is indicated that the alarm lamp post body is electrified normally, otherwise, it is indicated that the alarm lamp post body is electrified abnormally, rotation of the twisting cover is limited through the limiting mechanism, then the multiple alarm lamp post bodies are tested together, and after detection is finished, the alarm lamp post body is electrified abnormally. The limiting mechanism is released, the twisting cover is loosened, the twisting cover is rotated to the closing positioning block under the elastic force effect of the torsional spring, the stop lever is rotated to the closing positioning block, then the rotating handle drives the wire to be separated from the wiring end of the wire, the power-on state of the wire is cut off, and the situation that the twisting cover is forgotten to rotate is prevented.

Disclosed in the present invention is a cylindrical battery configured to reduce deformation of an electrode assembly and intensity of a flame when a thermal event occurs inside a battery cell. A cylindrical battery according to one aspect of the present disclosure includes: an electrode assembly including a first electrode, a second electrode, and a separator therebetween, and having a center hole formed when a laminate including the first electrode, the second electrode, and the separator is wound around a winding axis; a battery case that accommodates the electrode assembly through an opening formed on one side thereof; and a flame retardant member, at least a portion of which is disposed inside the central hole.

The utility model relates to the field of wire electrode discharge machining, in particular to an electric spark multi-wire cutting auxiliary device. An electric spark multi-wire cutting auxiliary device comprises a mounting frame, the mounting frame is provided with a fixing structure used for being mounted and fixed to a wire frame or a stand column of a machine tool, at least three guide wheels are arranged in the same plane of the mounting frame, and each guide wheel is provided with at least two guide grooves which are arranged at intervals and used for containing electrode wires. By arranging the mounting frame, the device can be conveniently and fixedly arranged on a machine tool, additional mounting operation on the machine tool is facilitated, the machine tool does not need to be transformed, only the device needs to be additionally mounted on the machine tool, upgrading and transformation of the machine tool are facilitated, and the problems that in the prior art, the machine tool needs to be redesigned, and the machining efficiency is high are solved. The modification amount is large; and an old machine tool cannot be compatible.

The present invention discloses a method and equipment for cleaning the surface of a thinned wafer with full coverage, wherein when the wafer that has completed grinding is in a loading and unloading position, the top surface of the wafer is cleaned by a top cleaning mechanism; then, a material transfer mechanism absorbs the wafer on the wafer stage and moves it to a bottom cleaning mechanism; the material transfer mechanism moves the adsorbed wafer to the bottom cleaning mechanism, and the bottom surface of the wafer adsorbed by the material transfer mechanism is cleaned by the bottom cleaning mechanism, and the cleaning component of the material transfer mechanism cleans the edge of the wafer during any period or the entire period between the movement and the bottom cleaning mechanism completing the cleaning; after the cleaning is completed at the bottom cleaning mechanism, the material transfer mechanism moves the adsorbed wafer and places it into a cleaning bucket for cleaning the top surface of the wafer, and after cleaning, the loading and unloading mechanism unloads the wafer. The present invention can ensure the cleanliness of the bottom surface and edge of the wafer before the cleaning bucket is cleaned, avoid dirt being adsorbed by a ceramic suction cup to cause blockage, and avoid affecting the cleanliness of the material box.

The invention relates to the technical field of 3D printing equipment, in particular to a 3D printer automatic leveling hot end quick release module which comprises a back plate, a nozzle assembly, a heating assembly, a rebound assembly and a strain gauge. The springback assembly comprises a guide column and an elastic piece, the heating assembly is in sliding fit with the guide column, and the elastic piece applies vertical elastic force to the heating assembly; the nozzle assembly is detachably connected with the heating assembly, the strain gauge is arranged on the back plate, and the nozzle assembly is provided with a connecting end vertically abutting against the working end of the strain gauge. Through contact between the strain gauge sensing module and the printing platform, leveling of the printing platform is achieved through the 3D printer. After leveling is completed, the springback assembly drives the heating assembly, the nozzle assembly and the strain gauge to reset to the original state, and mistaken touch or mistaken reading caused by residual force is avoided. The nozzle assembly, the heating assembly and the springback assembly are relatively independent, so that the nozzle assembly and the heating assembly can be independently detached, rapid maintenance is conveniently achieved, and the reliability of equipment is improved.

The invention relates to a connector with an anti-misplug structure. The connector comprises a shielding shell, a plastic main body, a light-emitting element, an insulating sheet body, a bottom plate and a plurality of terminals, the terminals are clamped in the lower terminal grooves in a linear arrangement mode, the terminals are provided with limiting pieces, the limiting pieces, the first terminals and the second terminals are integrally formed, the bottom of the plastic body is embedded into the bottom plate grooves, the shielding shell is clamped on the plastic body, and the connector is prevented from being interfered. The connector has the following beneficial effects: the terminals are linearly arranged and clamped in the lower terminal grooves of the plastic main body, the terminals are provided with the limiting pieces, and the limiting pieces can prevent a non-standard crystal head from being inserted and electrically connected with the connector to cause damage to the connector; the lower terminal groove is also provided with a boss, which can prevent the insertion of a non-standard crystal head from damaging the terminal of the connector, and also reduces the development cost of a die; whether the plug inserted into the connector is a standard crystal plug can be visually reflected through the state of the light-emitting element, and misplug of a non-standard crystal can be prevented.