32results about How to "Improve short circuit" patented technology

The invention relates to intelligent cable short circuit grounding and a temperature fault indicator. The indicator comprises a sensor high voltage area and a host machine low voltage area, wherein the sensor high voltage area comprises a short circuit sensor unit, a temperature sensor unit and a grounding sensor unit, and the host machine low voltage area is used for receiving and processing data information transmitted by the short circuit sensor unit, the temperature senor unit and the grounding sensor unit. By means of intelligent cable short circuit grounding and the temperature fault indicator, the accuracy rate of short circuit and grounding failure warning is improved, the fault section is positioned fast, the intensity of maintenance work is reduced, and work efficiency is improved.

The invention relates to the field of air conditioner outdoor unit equipment, in particular to an air conditioner outdoor unit air outlet grid structure capable of effectively increasing the air outlet rate of an air conditioner outdoor unit in a window blind. The air conditioner outdoor unit air outlet grid structure comprises a grid body. The grid body is composed of vertical rib grids and transverse rib grids, wherein the upper portion and the lower portion of the grid body are provided with the transverse rib grids, the rest of the grid body is provided with the vertical rib grids, and theproportion of the vertical rib grids to the grid body is larger than that of the transverse rib grids to the grid body. According to the air conditioner outdoor unit equipment, by means of the creative structure improvement, vertical air guiding of vertical ribs of the vertical rib grids is given priority, the traverse rib grids are distributed above and below the vertical rib grids correspondingly, so that transverse air pressing can be achieved through transverse ribs of the transverse rib grids in the upper direction and the lower direction, outlet air is prompted to be centralized betterin the vertical direction of the grid body, the blowing distance is larger, the short-circuit phenomenon caused by the fact that outlet air is rapidly dispersed and reflected by objects at present isgreatly improved, and the air conditioner outdoor unit air outlet grid structure is especially suitable for various air conditioner outdoor units.

The invention discloses a winding tube type heat exchanger with a circular tube flow guider and an inner lining barrel device. The winding tube type heat exchanger comprises a tube box (4), a tube plate (5) and a shell pass barrel body (7), and the winding tube type heat exchanger is characterized in that the annular tube flow guider (1) is mounted on the outer side of the shell pass barrel body(7) corresponding to a straight tube transitional area (13); on one hand, the annular tube flow guider (1) communicates with a reaction medium, and on the other hand, the annular tube flow guider (1)uniformly conveys the medium into the straight tube transitional area (13) through multiple channels; simultaneously / or, the inner lining barrel (10) is mounted in a barrel body, corresponding to a winding tube heat exchange area (11), of the inner part of the shell pass barrel body (7); the upper end of the inner lining barrel (10) is hermetically connected with an inner wall of the shell pass barrel body (7); and a channel into which the medium enters is reserved between the lower end of the inner lining barrel (10) and the inner wall of the shell pass barrel body (7). According to the winding tube type heat exchanger disclosed by the invention, a flowing dead area of an entrance part of a shell pass medium is reduced, a flowing area of the shell pass medium is widened, a flowing gap isreduced, flowing short-circuit of the shell pass medium is effectively improved, an effective utilization ratio of the heat exchange area of the winding tube type heat exchanger is increased, and theoverall heat exchange efficiency of the heat exchanger is also obviously improved.

The invention discloses a circuit board pattern electroplating sandwich film remover, and relates to the technical field of printed circuit board production, and the sandwich film remover is composed of the following components by the mass percentage: 5-20% of an organic alkali, 0.2-3% of a penetrant, 0.2-5% of a softening material, 0.05-10% of an accelerator, 0.05-1% of a tin surface bank protection agent, and the balance water. The sandwiched film remover can reduce the surface tension of a dry film, quickly permeate into a sandwiched film layer, soften and dissolve part of dry film slag, accelerate the fracture of a bond bridge between the dry films, enable the adhesive force of the dry films and a copper layer to disappear, and achieve the purpose of quickly and thoroughly removing the sandwiched film.

The invention provides an array substrate, a display panel and a display device. The array substrate comprises a display region and a driving circuit region, the driving circuit region comprises multiple driving circuit pads and multiple thin-film transistors, each thin-film transistor comprises a source electrode and a drain electrode, each drain electrode comprises multiple first comb tooth electrodes which are spaced and parallelly arranged and a first comb handle electrode connecting the first comb tooth electrodes, and each source electrode comprises second comb tooth electrodes which are spaced and parallelly arranged and a second comb handle electrode connecting the second comb tooth electrodes; each drain electrode and the corresponding source electrode are in interpolation structure distribution, each drain electrode further comprises a drain electrode connecting lead, and the first end of each drain electrode connecting lead is connected with the corresponding first comb handle electrode while the second end of the same is connected with the corresponding driving circuit pad. Circuits with the drain electrodes subject to influence of optical proximity effect in the driving circuit region of a GOA (gate on array) product are arranged in an optimized manner, so that influence of the optical proximity effect in the process of exposure is avoided, and circuit short-out of the driving circuit region is improved.

The invention discloses an encapsulating piece of a semiconductor and a preparation method thereof. The invention provides a carrier plate on which a plurality of metal blocks are formed; a resistance layer is covered on the carrier plate and an opening which exposes the metal blocks are formed on the resistance layer, wherein, the width of the opening of the resistance layer is slightly smaller than that of the metal block so as to form a metal layer in the opening of the resistance layer; the metal layer comprises an extension circuit and an extension cushion and a welding cushion which are formed at an end point of the extension circuit; then the resistance layer is removed, and at least one semiconductor chip is electrically connected with the welding cushion, and an encapsulating glue body coating the semiconductor chip is formed on the carrier plate; then, the carrier plate and the metal blocks are removed to expose the metal layer so as to electrically connect the metal layer with external devices through interval conductive materials of the extension cushion of the exposed metal layer, therefore, the extension circuit can be flexibly arranged due to the integration degree of the chip so as to effectively reduce the electric connection path between the chip and the extension circuit.

The invention discloses an electrolyte material intermediate and low-temperature solid oxide fuel cells. The molecular formula of the electrolyte material is SmxInyCe1-x-yO2-delta, wherein x is more than 0.01 and less than 1, y is more than 0.01 and less than 1, and delta is oxygen vacancy concentration and is more than -0.5 and less than 0.5. The electrolyte material has the following advantages: through codoping and substitution of elemental In and elemental Sm at the Ce site of a CeO2-delta base, performance and conductivity of the electrolyte material are improved; since elemental In has high electronegativity, electrons can be adsorbed onto the periphery of elemental In, so free electrons in a CeO2-based electrolyte are reduced, the phenomenon of short circuit in a cell is improved, and the open-circuit voltage of a cell prepared from the electrolyte material is increased; the material has a temperature range of 500 to 800 DEG C, has good oxygen ion conductivity and small electron conductivity in an air atmosphere compared with traditional Sm-doped CeO2, enables a cell to have high open-circuit voltage at a same temperature, overcomes the problems of low sintering activity and low cell open-circuit voltage of CeO2 and is an ideal material for electrolytes of intermediate and low-temperature solid oxide fuel cells.

The invention relates to a preparation method of an anode pole piece of a lithium iron phosphate lithium ion battery for a large-capacity vehicle. The preparation method comprises the following steps of: (1) placing 86-92% of lithium iron phosphate, 2-4% of a conductive agent, 3-4% of PVDF (polyvinylidene fluoride) and the residual amount of solvent according to weight percentage into a stirrer; and vacuumizing and sufficiently stirring to obtain slurry; (2) coating the slurry on an anode current collection body according to a surface density of 310-320 g / m<2>, and drying to obtain a pole piece; (3) roasting the pole piece and then rolling the pole piece to a certain thickness according to process requirements; (4) splitting the rolled pole piece by using an automatic splitting machine, so as to obtain the pole piece with a desired width; and (5) carrying out die-cutting on the split pole piece, so as to obtain the desired pole piece. The slurry prepared by the invention has good rheological property, consistency and stability; the blanking condition of the pole piece can be greatly improved; the short-circuit condition, the cycle life and the security of the battery can be greatly improved; and the preparation method provided by the invention has a good application prospect.

The invention discloses tin-silver alloy solder and a preparation process thereof. The tin-silver alloy solder comprises 97-99 parts of tin metal and 1-3 parts of silver metal. In the prepared tin-silver alloy solder, the average particle size of the silver metal is smaller than 50 micrometers, and the silver metal is distributed in the tin metal evenly. Through the tin-silver alloy solder prepared with the preparation process, the thermal expansion coefficient of tin-silver alloy can be lowered, the difference value between the thermal expansion coefficients of the tin-silver alloy and a diode welded assembly is reduced, the condition that a short circuit occurs to a product is improved, and service life of a diode is prolonged.

The invention provides a circuit connecting material, a circuit connecting structure and a circuit element connecting method, wherein the circuit connecting structure can utilize the circuit connecting material. The circuit connecting material comprises an electric conduction rubber layer and a plurality of insulating protruding blocks which are arranged at intervals and are at least arranged on one surface of the electric conduction rubber layer. When the circuit connecting material is applied to the circuit connecting structure, the insulating protruding blocks and gaps among a plurality of electric connecting terminals of one circuit element of the circuit connecting structure are correspondingly arranged. Therefore, the short circuit phenomenon of an electric connection end of the circuit connecting structure utilizing the circuit connecting material and the circuit element connecting method cannot happen easily.

The invention discloses a high-voltage light-emitting diode with a double-sided horizontal bridging structure and a manufacturing method of the high-voltage light-emitting diode. According to the invention, by means of a first series electrode and a second series electrode, the connection of a first type semiconductor layer and a second type semiconductor layer above and below an epitaxial structure is realized. Finally, the serial connection between different light emitting structures is realized. Moreover, a horizontal bridging structure is realized due to the fact that the first serial electrode and the second serial electrode have no large height difference. As a result, the conditions of short circuit and open circuit in the process of manufacturing the high-voltage light emitting diode are improved. The reliability of the high-voltage light-emitting diode is further improved.

The invention discloses a novel U-shaped pipe bundle type heat exchanger. The novel U-shaped pipe bundle type heat exchanger comprises a flow guide barrel, a pipe box end cover and a pipe plate, wherein the pipe box end cover and the pipe plate are arranged on the left end and the right end of the flow guide barrel respectively; the right side of the pipe plate is fixedly provided with a U-shaped pipe bundle communicated with the flow guide barrel; the right side of the pipe plate is further connected with a shell for containing the U-shaped pipe bundle; the shell is internally provided with U-shaped baffle plates in parallel; pass partition plates are respectively arranged on the upper and lower sides of the crossed parts of inlets and outlets of the U-shaped baffle plates at a certain distance by the flow guide barrel; the pass partition plates extend to the pipe plate from the pipe box end cover; a straight pipe which rightwards stretches into an innermost-layer cavity of a U-shaped pipe bundle to reach the baffle plate on the rightmost side is further arranged in the middle of the pipe plate; and the left end of the straight pipe is communicated with a flow channel surrounded by the pass partition plates. According to the U-shaped pipe bundle type heat exchanger disclosed by the invention, the utilization rate of the pipe plate can be improved by distributing the straight pipe in a non-pipe-distribution space of the innermost layer of the U-shaped pipe bundle, so that a short-circuit phenomenon caused by shell pass fluid due to the larger innermost-layer distance of the pipe bundle is improved and the heat transferring efficiency of the heat exchanger is improved.

The invention provides a touch control device and a preparation method of the touch control device. The touch control device comprises a substrate, and the substrate is provided with a grounding wire,a signal protection wire, a touch control signal receiving wire, a first shielding wire and a second shielding wire; the signal protection lines are arranged between the grounding lines and the touchsignal receiving lines at intervals. The first shielding wire is arranged between the grounding wire and the signal protection wire at intervals; and the second shielding lines are intermittently arranged between the signal protection lines and the touch signal receiving lines. According to the embodiment of the invention, the first type shielding wire is arranged between the grounding wire and the signal protection wire to improve poor short circuit between the grounding wire and the signal protection wire; and a second shielding line is arranged between the signal protection line and the touch signal receiving line to reduce short circuit between the signal protection line and the touch signal receiving line. And the cost is not increased under the condition of reducing the short circuit.

The invention provides a dustproof ventilation electric power control cabinet, and relates to the technical field of electric power equipment. The dustproof ventilation electric power control cabinetcomprises a cabinet body, a controller, two pressure sensors connected with the controller, a temperature sensor, a controller and two alarms; the cabinet body is provided with a first air inlet and asecond air inlet which communicate with an air inlet mechanism, and an air outlet which communicates with an air outlet mechanism. One dust filtering mechanism is arranged between the first air inletand the air inlet fan of the air inlet mechanism; the other one dust filtering mechanism is arranged at the second air inlet; the pressure sensors detect a pressure numerical value on a filter element, the temperature sensor detects a temperature numerical value in the cabinet body, and the numerical value is transmitted to the controller; the controller controls the alarm to give an alarm and controls the air outlet motor of the air outlet mechanism to increase the rotating speed. The above arrangement can prevent the module of the electronic component from working in an overheat environmentfor a long time, improves the conditions of short circuit and aging failure of the component, and improves the safety of a power system.

The invention provides a printed circuit board and a display device including the same. The display device includes a wiring pattern portion including a wiring pattern and a wiring pad connected to the wiring pattern; a printed circuit board electrically connected to the wiring pattern portion; and a conductive substance for electrically connecting the wiring pattern portion and the printed circuit board, and the printed circuit board includes a base substrate; a plurality of circuit pads disposed on the base substrate and electrically connected to the wiring pattern through the conductive material; and a dummy pad provided between the adjacent circuit pads. A wiring pad includes a first portion overlapping the circuit pads and a second portion not overlapping the circuit pads, and the conductive material is provided at the second portion and is in contact with side surfaces of the circuit pads.

This invention relates to a picture element structure, which comprises one driving part, one picture element electrode, one isolation layer, one protective layer and one pad layer. The driving part is electrically connected with the scanning aligning line and data aligning line and the picture element electrode is connected with the driving part. The isolation layer stretches from the driving part into the electrode bottom and the protective layer stretches from the driving part into the electrode bottom to cover the isolation layer. The pad layer is set between the protective layer and the isolation layer with one groove between them locating between the scanning aligning line and the data aligning line and the picture electrode.

The invention provides a wafer structure, comprising a plurality of particles, a plurality of cutting channels, and a plurality of process patterns. The cutting channels are disposed at first edge andsecond edge of adjacent particles. The process patterns are collectively disposed in the cutting channel of the adjacent first edge, or in the particles, or collectively disposed in the cutting channel of the adjacent first edge and a part of the cutting channel of the adjacent second edge. Accordingly, when the width of the cutting channel having no process patterns is reduced, the quantity of particles, generated by each wafer can be increased.

The invention belongs to the field of power equipment, and particularly relates to a multipurpose combined protection type transformer which comprises a transformer body, a base is mounted at the bottom end of the transformer body, a box is fixedly mounted on the base, components are arranged in the transformer body, the box wraps the outer sides of the components, the box is made of insulating materials, and the transformer body is made of insulating materials. An observation window is arranged on the box body, driving plates which are uniformly distributed are mounted in the annular side wall of the box body, and spikes are arranged at the end parts of the driving plates and are positioned on the outer side of the box body; components in the transformer main body are wrapped by the insulated box body, the situation that short circuit of the transformer is easily caused after animals such as rats and snakes bite or make contact with the components is improved, the rats and snakes are arranged on the outer side of the box body, so that the animals such as the rats and the snakes are difficult to climb to the box body, and the safety of the transformer is improved. The conditions that the box body is damaged and components are exposed outside after animals such as rats and snakes bite and step on the box body for a long time are improved, and the use is safer.

The embodiment of the invention provides a display panel, a display device and a preparation method of the display panel. The display panel comprises a substrate; a light-emitting element which is arranged on the substrate, wherein the light-emitting element comprises a first connecting end and a second connecting end which are oppositely arranged in the first direction, and an included angle area exists between the side wall of the light-emitting element and the outer surface of the substrate; an electrode element which is arranged on the substrate and comprises a first contact electrode and a second contact electrode, wherein the first contact electrode is connected to the first connecting end, and the second contact electrode is connected to the second connecting end; and an auxiliary insulation part, wherein at least part of the auxiliary insulation part is located between the first contact electrode and the second contact electrode and is arranged in the included angle area. According to the display panel, short circuit caused by mutual connection of the first contact electrode and the second contact electrode due to metal residues can be improved, and the yield of the display panel is effectively improved.

The present invention is to provide a next-generation safety connector for electric heating pads, and in more detail relates to a next-generation safety connector for electric heating pads for providing connector standards for the connection of electric heating pads The device is modeled to facilitate miniaturization, while ensuring structural safety, improving assembly and workability, and can be stably used on electric heating pads. In the present invention, for the electric heating pad composed of a plug connector and a socket connector, wherein, the plug connector is formed with connection holes, assembly holes and bosses; the terminal fixed on the wiring board is in the shape of a hollow tube ; The receptacle connector combined with the terminals arranged on the wiring board of the plug connector has a built-in socket and a plug. The plug includes a guide groove for separating the socket and inserting the terminal. The upper and lower parts of the plug are respectively A boss is formed; the cover is used to cover the outside of the plug connector and the plug of the socket connector.

The invention discloses a control device for a smart campus system. The control device comprises an outer shell and a roof plate. A rotating shaft is fixed to one side of the front end surface of theouter shell. The outer shell and a dustproof sealing door are connected with each other through the rotating shaft. An observation window is fixed in the dustproof sealing door. An inner shell is welded to the inside edge of the outer shell. Heat dissipation openings are symmetrically and transversely formed in the two side wall faces of the inner shell. An anti-collision block set is fixed to theouter surface of the inner shell. Cushioning pieces are installed to the side of the anti-collision block set. The inner shell is connected with the inner surface of the outer shell through shock absorption pieces installed on the upper end surface of the inner shell. A protection block is welded to the outer side surface of the lower end of a top plate. According to the control device for the smart campus system, the adjacent surfaces of first pressing pieces and second pressing pieces installed in the cushioning pieces and the shock absorption pieces are the same-name magnetic poles, so that the first pressing pieces and the second pressing pieces can perform magnetic attraction shock resistance by utilizing the principle that the same-name magnetic poles repel each other, and the protection performance is good.