25results about How to "Avoid short circuit conditions" patented technology

The utility model relates to the field of grid-connected high-voltage cabinets, and discloses a grid-connected high-voltage cabinet communication device, which comprises a grid-connected cabinet, one side of the grid-connected cabinet is provided with an equipment cabin, one side of the grid-connected cabinet is provided with a communication cabin, and the inner bottom surface of the communication cabin is provided with a data acquisition unit. A communication protocol converter is arranged on the inner bottom surface of the communication cabin, a microprocessor is arranged on the inner bottom surface of the communication cabin, an interface converter is arranged on the inner bottom surface of the communication cabin, a single chip microcomputer is arranged on the inner bottom surface of the communication cabin, and an upper cabinet door is rotationally arranged on one side of the grid-connected cabinet. One side of the upper cabinet door is provided with a plurality of indicating lamps, and one side of the upper cabinet door is provided with an anti-islanding protection device. Working information data of various devices in the grid-connected cabinet are efficiently transmitted and interacted, and various network interfaces on the interface converter are utilized, so that the communication application range of the grid-connected high-voltage cabinet is expanded.

The utility model relates to battery technical field discloses a kind of cylindrical battery and battery pack, cylindrical battery includes: battery core;Cover plate assembly;Current collection component, connect between battery core and cover plate assembly;First current collection piece is electrically connected with pole, and the region of pole in the inside of shell and second current collection piece are arranged in the same end surface of battery core;Along axial direction, the projection of the side of pole close to battery core in second current collection piece and second current collection piece at least partially overlap, to form overlap area;Insulating layer, at least partially between second current collection piece and pole, the projection of insulating layer in the plane perpendicular to axial direction covers overlap area;The width of insulating layer along radial direction is d1, the width of overlap area along radial direction is d2, the value range of d1 / d2 satisfies:1.1≤d1 / d2≤5.The cylindrical battery provided by the utility model guarantees the insulating effect of second current collection piece and pole, avoids the short-circuit situation that pole and opposite current collection piece contact.

This invention provides an all-solid-state battery, including a casing and a solid-state battery body disposed inside the casing. The solid-state battery body includes a positive electrode portion, a solid electrolyte layer, and a negative electrode portion stacked sequentially. The solid electrolyte layer includes a first surface and a second surface facing each other. The first surface has a receiving groove, and the second surface has a protrusion. The positive electrode portion includes a positive electrode body and a positive electrode current collector. The positive electrode body is disposed within the receiving groove, and the positive electrode current collector is attached to the first surface of the solid electrolyte layer. The negative electrode portion includes a negative electrode body, a negative electrode current collector, and an elastic buffer layer. The elastic buffer layer has a cavity inside to accommodate the negative electrode body and the negative electrode current collector. An opening is provided on the surface of the elastic buffer layer near the protrusion, and the protrusion seals the opening and abuts against the negative electrode body inside. The all-solid-state battery of this invention has advantages such as high safety and low expansion rate.

The utility model discloses a kind of short-circuit-preventing string light components, comprising: substrate, the substrate has bearing surface;Insulating boss, be set on the bearing surface, and the bearing surface is divided into two halves;Positive electrode wire and negative electrode wire, respectively set on two the bearing surface of the insulating boss two sides;And at least one lamp pearl, two ends are respectively welded on the positive electrode wire and negative electrode wire.The setting of bearing surface can carry positive electrode wire and negative electrode wire, insulating boss can separate positive electrode wire and negative electrode wire, so that when welding lamp pearl, due to the blocking effect of insulating boss, the tin paste on positive electrode wire and negative electrode wire will not flow together, prevent the short-circuit situation occurs.

The utility model discloses a battery and a power battery system, and relates to the technical field of batteries, the battery and power battery system comprises an insulating film, the insulating film covers the peripheral side of a battery cell, and the insulating film extends out of the battery cell towards a top cover and is connected with an insulating assembly; moreover, the shortest vertical distance between the insulating film and the top cover in the length direction is h1, the shortest vertical distance between the insulating film and the overlapping region of the insulating film and the insulating assembly in the length direction is h2, and the parameters meet a preset relationship, so that the battery and the power battery system can avoid the conditions of explosion point and welding failure of the insulating film caused by welding of the top cover; the connection strength of the insulating film and the insulating assembly is ensured, and the condition of battery short circuit caused by lap joint of the battery core and the shell is avoided.

The utility model discloses a water lamp structure with dynamic light and shadow pattern effect, include: a base, be equipped with an electronic control module in this base, a water lamp main part is the hermetic cavity of hollow light -transmitting, and fixed mounting is in the base, and the hermetic cavity is filled with transparent liquid, a bridge structure is arranged in the water lamp main part inside, and is installed with the sealed frame on the bridge structure, and at least is equipped with a light emitting component in the sealed frame, and the wiring end of light emitting component is passed through the wire passage of sealed frame and bridge structure and is connected with the electronic control module of base electrically through extension, the utility model discloses a water lamp structure with dynamic light and shadow pattern effect, can realize the sealing waterproof of light emitting component through the sealed frame, avoids the short circuit situation of light emitting component, to this improves the waterproof performance of light emitting component to ensure the service life of light emitting component, and through the cooperation of electronic control module and light emitting component, can realize a variety of light and shadow effect, and then improve consumer visual sense.

This invention relates to the field of lithium battery pack technology and discloses a lithium battery pack with multiple protection functions, including a bottom shell and a top shell. The bottom of the top shell abuts against the bottom shell. An installation groove is formed inside the top shell, and a temperature sensor and a pressure sensor are fixedly connected inside the installation groove. A fire detector is fixedly connected inside the bottom shell. By activating a first suction fan, hot air inside the bottom and top shells can be discharged to prevent the heat inside the bottom and top shells from damaging the operation of the lithium battery pack. Activating a second suction fan can draw cold air from outside into the bottom and top shells to cool the inside of the bottom and top shells. At the same time, the circulation of coolant carries away the heat of the lithium battery pack itself, which can quickly dissipate heat from the lithium battery pack and effectively prevent heat damage to the lithium battery pack. It also prevents the lithium battery pack from short-circuiting due to heat, thus effectively protecting the lithium battery pack.

The application relates to a waterproof plug for charging and discharging, which comprises a plug body, the upper portion of the plug body is provided with an insulating positioning sleeve, a plug hole is formed in the insulating positioning sleeve, the top end of the outer wall of the insulating positioning sleeve is provided with a positioning convex edge, and connecting holes are formed on the two sides of the positioning convex edge; the lower portion of the plug body is provided with an insulating protection block which is arranged on the bottom surface of the insulating positioning sleeve and protrudes from the bottom surface, and positive and negative electrode connecting terminals are arranged in the plug hole; a rubber sealing gasket which is matched with the bottom surface of the positioning convex edge is arranged on the outer wall of the insulating positioning sleeve, and the rubber sealing gasket is provided with a rubber cover which can close the plug hole. The utility model belongs to the technical field of battery charging and discharging, can be quickly inserted into the positioning hole on the lithium battery pack shell, is convenient to install, is additionally provided with a rubber sealing gasket for sealing, and can effectively prevent rainwater, moisture and dust from entering the inside of the lithium battery pack shell to cause a short circuit.

This utility model relates to the field of pipeline inspection technology and discloses an amphibious pipe crawler, including a crawler body with two wheels installed on both sides. A charging port is provided on the surface of the crawler body, and floating devices are provided on both sides of the crawler body. Each floating device includes two connecting plates, which are fixedly connected to both sides of the crawler body. A strip plate is slidably inserted into each connecting plate, and a suspension frame is fixedly connected to one side of each strip plate. This amphibious pipe crawler achieves the effect of switching the crawler body to a floating state on water, avoiding the situation where a large amount of residual water in the pipeline makes it difficult for the crawler body to enter the water flow for use, thus improving the practicality of the device.

The utility model discloses an air door interlocking device which comprises a sliding cavity arranged between two air doors, a sliding groove is formed in the sliding cavity, a fixed clamping plate is arranged in the middle of the sliding groove, the distances between the fixed clamping plate and the air doors on the two sides are the same, and a left sliding block and a right sliding block which are connected with the sliding groove in a sliding mode are arranged on the two sides of the fixed clamping plate respectively. First fixed pulleys corresponding to the left sliding block and the right sliding block are arranged at the top ends of the sides, close to the sliding groove, of the two air doors respectively, the head ends of the left sliding block and the right sliding block are connected through springs, and the tail ends are fixedly connected with steel wire ropes, and the other ends of the steel wire ropes are connected with lug plates of the air doors after bypassing the first fixed pulleys; when the tail end of the left sliding block is located at the left end of the sliding groove, the head end of the right sliding block abuts against the fixed clamping plate, the spring is in the maximum extension state, the left air door is opened, the right air door is closed, when one air door is opened, the other air door is always closed, and the situation that the two air doors are opened at the same time, and consequently a ventilation system is short-circuited is effectively avoided. And the safety and the reliability are higher.

The application discloses a negative-electrode-free sodium battery diaphragm, a preparation method and application thereof, and relates to the technical field of negative-electrode-free sodium batteries. The application forms a sandwich structure by using a positive electrode side polymer layer, a heat conduction layer and a negative electrode side polymer layer, introduces polyolefin elastomer POE into the negative electrode side polymer layer, enhances the elasticity of the diaphragm, buffers the expansion and contraction of the negative electrode side in the charging and discharging process, guarantees the close adhesion of the interface, the heat conduction layer quickly conducts heat, reduces the interface side reaction caused by the heat accumulation, avoids the loss of elasticity of the elastic layer due to high temperature aging, and the positive electrode side polymer support layer guarantees the overall mechanical strength, avoids the deformation of the diaphragm in the cycle process, and prevents the short circuit condition. The sandwich structure can effectively solve the core problems of the interface buffer adhesion and the low heat dissipation efficiency of the negative-electrode-free battery, provide sufficient mechanical strength to prevent the deformation of the diaphragm and the short circuit of the battery, and can simultaneously improve the expansion buffer effect, the heat dissipation capacity, the electrochemical performance and the gas production inhibition effect.

The utility model relates to the technical field of energy storage power supply mainly provides energy storage equipment toppling detection circuit and energy storage equipment, the circuit includes drive module, and the control module and detection module connected with drive module, detection module and drive module still all are connected with first power supply, and control module still is connected with controller. Detection module is used for receiving the first voltage of first power supply output, and when the inclination angle of energy storage equipment is less than the preset angle, the first voltage is released to avoid the false triggering of controller when energy storage equipment is placed horizontally, and when greater than the preset angle, the first voltage is input to drive module after the delay preset time, so that drive module outputs drive signal to control module when the first voltage is greater than voltage threshold, thereby controlling control module to output abnormal signal to controller based on drive signal, and then making controller cut off the charge and discharge function of energy storage equipment according to abnormal signal, avoiding the emergence of short circuit situation due to toppling, and improving the safety of energy storage equipment.

The application discloses a multi-stage interconnection connecting device based on a marine fire alarm controller and a control method, and relates to the technical field of ship equipment. The multi-stage interconnection connecting device based on the marine fire alarm controller and the control method are characterized in that a buffer mechanism is arranged on the side of the wire drum that is far away from the external thread, each wire of the marine fire alarm controller is connected through a line connection auxiliary mechanism, the wires can be arranged in an orderly manner, the distribution of the wires is prevented from being disorderly, the subsequent wire maintenance work is facilitated, a plurality of clamping pieces are extruded by the conical sleeve, the wires are clamped, the wires are prevented from shaking, the wires are not prone to falling off, the wires are stably connected, the wires are S-shapedly wound on the first guide wheel and the second guide wheel, when the wires are subjected to external force pulling, the spring elastic force is utilized to play a buffering role, the wires are prevented from being broken due to external rigid pulling, and the marine fire alarm controller is favorably and stably operated.

This invention relates to an anti-misalignment battery cell, a lithium-ion battery, and a method for manufacturing a lithium-ion battery. The battery includes a positive electrode, a separator, and a negative electrode, wherein the positive and negative electrode are respectively attached to opposite sides of the separator. The positive electrode includes a positive active layer, and the negative electrode includes a negative active layer, the width of which is greater than the width of the positive active layer. This invention provides an anti-misalignment battery cell, a lithium-ion battery, and a method for manufacturing a lithium-ion battery, which can prevent misalignment between the positive and negative electrode.

The utility model relates to a top cover assembly, a battery monomer and a battery. The top cover assembly comprises a cover plate and a lower insulating part, at least one pole hole is formed in the cover plate, the cover plate comprises a first surface and a second surface which are oppositely arranged in the thickness direction of the cover plate, and the lower insulating part is arranged on the second surface; the terminal post comprises a main body and an annular flange part arranged at one end of the main body, the main bodies are inserted into the terminal post holes in a one-to-one correspondence manner, the sealing rings are sleeved on the main bodies of the terminal post in a one-to-one correspondence manner, and at least partial structure of each sealing ring is clamped between the flange part of the terminal post and the first surface; and the insulating film layer covers the first surface of the cover plate and continuously extends to the peripheral surface of each flange part so as to seal and shield the peripheral side of the sealing ring. According to the top cover assembly, the battery monomer and the battery, the service life of the sealing ring is longer, and the sealing reliability is better.

The utility model relates to the technical field of electronic tags, and discloses a flexible RFID electronic tag for archive management, which comprises a fabric base layer and a protective shell, an antenna layer is adhered to the top end of the fabric base layer through glue, an RFID chip is arranged on the inner wall of the antenna layer, a flexible layer is adhered to the top end of the antenna layer through glue, and the protective shell is arranged on the flexible layer. The top end of the flexible layer is bonded with a paper material layer through glue; the waterproof glue is arranged on the protection shell and the paper layer, so that water can be prevented from entering the protection shell in the use process, the RFID chip and the circuit in the protection shell can be protected, the short circuit condition in the use process is prevented, the waterproof performance is improved, and the service life is prolonged; the problems that a traditional electronic tag cannot be bent in the using process and cannot be attached to a bent surface, waterproof operation is lacked, water seepage occurs in the using process, and the safety of an internal chip is affected are solved.

The utility model relates to the technical field of lithium ion battery, especially relates to a winding electric core structure. Winding electric core structure includes positive sheet, negative sheet and diaphragm. Positive sheet, negative sheet and diaphragm are formed arc region and flat region after winding, and the arc region formed by the first bending of positive sheet in the winding process is first arc region, and the inner side of first arc region is opposite to the starting end of negative sheet, and the inner side of first arc region is provided with insulating layer. The insulating layer includes framework layer and first adhesion layer, and the first adhesion layer is towards positive sheet, and the framework layer has first surface and second surface, and the second surface is towards the starting end of negative sheet. First surface and adhesion layer are bonded, can avoid the relative displacement between insulating layer and positive sheet in the winding electric core structure during charge and discharge, thereby can avoid the short circuit of electric core in the use process, and enhances the safety performance of electric core.

The application discloses a control circuit of double-AC seat single-phase power supply, which comprises a first voltage input end, a second voltage input end, an alternating voltage output end, a control signal output end and a working voltage input end, wherein the working voltage input end is used for supplying power for the whole control circuit; the control circuit further comprises a phase comparison module, a voltage detection module, a voltage control unit, a first switch module and a second switch module. The design can effectively avoid the situation that when the phases of the first voltage input end and the second voltage input end are different, or when any one of the voltage input ends is in poor contact and causes metal loss, the on-off between the alternating voltage end and the external working circuit is cut off through the second switch module, so that the occurrence of safety accidents caused by the overloading of a single voltage input end due to short circuit is avoided.

This invention provides a composite isolation layer, which consists of an isolation layer body and a structural reinforcement layer disposed on one side thereof. The isolation layer body is ion-conductive and non-porous, so it does not experience soft shorting. The structural reinforcement layer enhances the overall mechanical strength of the isolation layer. When the isolation layer body is subjected to impact, compression and deformation, the presence of the structural reinforcement layer prevents the positive and negative electrode layers from contacting each other. The combination of the isolation layer body and the structural reinforcement layer can significantly reduce the overall thickness of the isolation layer.

The application provides a preparation method of a flash memory device, comprising the following steps: providing a substrate with a stacked floating gate layer, an ONO layer and a control gate layer formed thereon, the substrate is provided with a groove, and the groove is provided with a side wall structure; forming a conductive contact layer by using a self-aligned silicide process; performing selective etching on the side wall structure by using an SPT process; and forming an interlayer insulating medium layer. The application performs selective etching on the side wall structure by using an SPT (stress proximity technique) process. Since the etching selectivity of the SPT process on some material layers (silicon nitride layers) is high, the filling of the interlayer insulating medium layer in the groove is improved by performing targeted thinning on some material layers in the side wall structure after the formation of the conductive contact layer (self-aligned silicide process), so that the filling of the interlayer insulating medium layer can be improved without affecting the electrical performance of the device, the void defects are avoided, and the device yield is further improved.

A semiconductor structure and a method for forming the same, the structure comprising: a substrate; a vertical stack structure comprising a channel region and source-drain regions on both sides of the channel region, the channel region comprising a first stack region, an isolation region and a second stack region on the substrate, the first stack region comprising a plurality of first channel layers, the second stack region comprising a plurality of second channel layers; a first isolation layer in the isolation region; a gate structure surrounding the first channel layers and the second channel layers on the substrate; a first source-drain doped region in the source-drain regions on both sides of the first stack region; a first contact layer on a surface of the first source-drain doped region having a first projection on a surface of the substrate; a second source-drain doped region on the first contact layer; a second contact layer on a surface of the second source-drain doped region having a second projection on the surface of the substrate, an area of the first projection being greater than or equal to an area of the second projection; a second connection layer on both sides of the gate structure; and a first connection layer in the second source-drain doped region. The semiconductor structure has improved performance.

The application relates to the technical field of garbage containers, in particular to a collecting box for lithium battery recycling, which comprises a recycling box, the upper end of the recycling box is fixedly installed with a connecting shell, the upper end of the connecting shell is fixedly installed with a feeding pipe, a rotating disc is arranged in the connecting shell, rotating rods are fixedly installed at the two side ends of the rotating disc, the two rotating rods are rotationally connected with the two side inner walls of the connecting shell, and a motor three is fixedly installed at the end of the connecting shell. The rotating of the threaded rod two drives the storage box to move in the Y-axis direction, the position of the storage box can be adjusted, the position of the storage groove opening corresponds to the position of the discharging pipe, the lithium battery can be accurately placed in the storage groove, the collecting box is provided with multiple storage grooves, multiple lithium batteries can be separately and neatly stored, the short circuit caused by the stacking and discharging of the lithium batteries is avoided, and the safety of the collecting box is ensured.