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31results about How to "Avoid shorting" patented technology

Shaft mechanism and electronic equipment

The present application provides a hinge mechanism and an electronic device, which relate to the technical field of electronic products. The hinge mechanism is provided with a support member in at least one of the main shaft and the connecting plate assembly. When the electronic device switches between the unfolded state and the folded state, the flexible circuit board will repeatedly contact and separate from the support member, and the flexible circuit board will be deformed at the contact portion with the support member. By configuring the support member to include a supporting body and a protective portion, the protective portion is arranged on a side surface of the supporting body facing the flexible circuit board, the protective portion at least covers the contact portion of the support member, and the side surface of the protective portion facing the flexible circuit board is an insulating wear-resistant surface. In this way, the flexible circuit board contacts the insulating wear-resistant surface of the protective portion, which can prevent the surface of the flexible circuit board from being worn. In addition, the insulating wear-resistant surface of the protective portion has a good insulating effect, which can prevent the flexible circuit board from short-circuiting, thereby improving the reliability and service life of the flexible circuit board.
Owner:HONOR DEVICE CO LTD

Battery pack and electric equipment

The utility model provides a battery pack and electric equipment, and relates to the technical field of batteries. The battery pack comprises a box body and a power distribution box, the box body is provided with a first containing cavity, the first containing cavity is used for containing a battery cell, the power distribution box comprises a shell and a power distribution device, the shell is located outside the box body, the shell is fixedly connected with the outer wall face of the box body, a second containing cavity is formed in the shell, or the shell and the outer wall face of the box body define the second containing cavity, and the power distribution device is arranged in the second containing cavity. And the power distribution device is accommodated in the second accommodating cavity. According to the battery pack and the electric equipment, the battery cell and the distribution box are separated in two spaces by enabling the battery pack and the electric equipment to meet the structure, so that combustible gas can be prevented from diffusing into the distribution box when the battery cell is subjected to thermal runaway, arc discharge and short circuit of the distribution box are avoided, and the overall safety performance of the battery pack is improved.
Owner:BYD CO LTD

Battery piece, manufacturing method thereof and photovoltaic module

The embodiment of the invention relates to the photovoltaic field, and provides a battery piece and a manufacturing method thereof, and a photovoltaic module, and the battery piece comprises a substrate which comprises a front surface and a back surface which are opposite to each other; the first auxiliary grid and the second auxiliary grid are positioned on the back; the first main grid is electrically connected with the first auxiliary grid, and the second main grid is electrically connected with the second auxiliary grid; the first insulating layer covers part of the surface of the first auxiliary gate; the second insulating layer covers part of the surface of the second auxiliary gate; wherein the distance between the second auxiliary grid directly facing and adjacent to the first bonding pad and the first bonding pad is a first distance L1, the distance between the end part of the second insulating layer covering the second auxiliary grid and the first bonding pad is a second distance L2, L1 is greater than or equal to 7L2 / 6 and less than or equal to 6L2, and / or L1 is greater than or equal to 7L2 / 6 and less than or equal to 6L2 in the second direction. The distance between the first auxiliary grid directly facing and adjacent to the second bonding pad and the second bonding pad is a third distance L3, the distance between the end of the first insulating layer covering the first auxiliary grid and the second bonding pad is a fourth distance L4, L1 is larger than or equal to 7L2 / 6 and smaller than or equal to 6L2, and the performance of the battery piece can be improved.
Owner:JINKO SOLAR CO LTD +1

Relay contact assembly and relay

The invention provides a relay contact assembly and a relay, and relates to the technical field of electric power. The relay contact assembly comprises a pair of static contact leading-out ends, a movable contact spring, a first arc isolating piece and a second arc isolating piece, wherein the movable contact spring is used for being in contact with or separated from the pair of static contact leading-out ends; the first arc isolating piece is arranged outside the static contact leading-out end and is used for blocking arc transfer; and the second arc isolating piece is arranged on the movable contact spring and is used for blocking arc transfer. Under the combined action of the first arc-isolating piece and the second arc-isolating piece, the risk that the arc ablates the peripheral side wall of the stationary contact leading-out end and the peripheral side wall of the movable contact spring is reduced, the arc can be isolated more comprehensively, the transfer of the arc is hindered, and the thoroughness of arc extinguishing is improved.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD

Carp robot brain electrode waterproof adapter and carrying device and using method thereof

The invention discloses a carp robot brain electrode waterproof adapter and carrying device and a using method thereof, and belongs to the field of biological control, and the carp robot brain electrode waterproof adapter comprises a plastic tube cavity, a brain electrode cap, a wire connecting cap, a connector, a clamping device, a supporting plate and a needle tube; the brain electrode cap, the plastic tube cavity, the wire connecting cap and the connector are sequentially connected through a thread structure and finally connected into the waterproof bag. The brain electrode is connected with a lead in the lead connecting cap in a plastic tube cavity through a rubber plug of the brain electrode cap by adopting an auxiliary device needle tube, so that waterproof switching between the brain electrode and the microprocessor is realized; and the clamping device and the supporting plate are used for fixing the device on the skull of the carp. The invention provides a waterproof treatment and carrying device for joints of brain electrodes and wires for underwater motion control of aquatic organism robots such as carps and the like. The device can be combined according to the number of the brain electrodes and can be detached for repeated use.
Owner:YANSHAN UNIV

Top cover, battery and electronic equipment

The utility model provides a top cover, a battery and electronic equipment. The top cover comprises a light aluminum sheet, an upper plastic ring, an extension edge part formed by the outward extension of the upper plastic ring, and a top cover patch, the light aluminum sheet is arranged on the top surface of the battery; the upper plastic ring is used for surrounding the side surface of a pole of the battery, and the bottom surface of the upper plastic ring is propped against the surface of the bright aluminum sheet; the extension edge part is arranged on one side, far away from a pole of the battery, of the upper plastic ring; the top cover patch is arranged on one side, back to the battery, of the light aluminum sheet, and one side, facing the battery, of the top cover patch abuts against one side, back to the battery, of the extension edge part. And the gap between the top cover patch and the battery pole is filled through the expansion edge part. And the top cover patch is abutted against the extension edge part, so that a gap between the top cover patch and the light aluminum sheet is isolated. And the metal chips are prevented from short-circuiting the light aluminum sheet and the pole of the battery through the gap.
Owner:广州融捷能源科技有限公司

Automatic gripper device for truss coil stock

The invention discloses an automatic gripper device for truss coil stock, which is used for gripping the coil stock for transferring, and comprises a gripper platform connected with a truss for lifting, two gripper assemblies capable of moving in opposite directions are arranged below the gripper platform, a liftable first correlation detection piece is arranged on each gripper assembly, and a second correlation detection piece is arranged on each first correlation detection piece. The first correlation detection piece detects the thickness of a coil material through lifting to determine the position of a hollow pipe of the coil material and then enables the gripper platform to drive the gripper assemblies to descend to the position of the hollow pipe, and a translation driving assembly is further arranged on the gripper platform and used for driving the two gripper assemblies to move horizontally and draw close to grab the coil material after the gripper platform descends in place. The truss coil stock automatic gripper device has the advantages of being high in automation degree, stable in coil stock gripping, high in gripping precision, high in reliability, high in safety and the like.
Owner:CHANGSHA HUAHENG ROBOT SYST

Secondary battery and electric device

The application discloses a secondary battery and an electric device, comprising: a shell, an electrode assembly, a top cover sheet, an insulating piece and a protruding piece, the top cover sheet is connected with the shell, and the top cover sheet is provided with a liquid injection hole; the insulating piece is connected with one side of the top cover sheet facing the electrode assembly; the protruding piece comprises an extension part and a blocking part, the extension part is connected with one side of the insulating piece away from the top cover sheet; the blocking part is connected with one side of the extension part away from the insulating piece, and the orthogonal projection of the blocking part on the top cover sheet covers at least part of the liquid injection hole; at least one flow guide hole is arranged on the extension part, and the flow guide hole is communicated with the liquid injection hole; the sum of the areas of the at least one flow guide hole is S1 mm 2 , the area of the liquid injection hole is S2 mm 2 , and the following condition is met: 1≤S1 / S2≤4. After the secondary battery meets the range of 1≤S1 / S2≤4, the strength of the protruding piece is improved, and the electrolyte injection efficiency is further improved, so that the production yield of the secondary battery is significantly increased.
Owner:SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD

Network security disconnection structure

The utility model belongs to the technical field of network equipment, and particularly relates to a network safety disconnection structure, which comprises an access metal sheet, an access metal sheet is fixedly mounted on the inner wall of a casing, a sliding rod is slidably connected to an inner cavity of a sliding pipe, the surface of a pressing rod is movably connected with the top of the access metal sheet, and the surface of the pressing rod is movably connected with the outer wall of the casing. A clamping plate is slidably connected to an inner cavity of the sliding groove, a clamping groove is formed in the surface of the sliding rod, and a push handle is slidably connected to the surface of the machine shell. By arranging the connecting mechanism, an operator presses and pushes a sliding rod, a pressing rod pushes an access metal sheet to move, the access metal sheet is in contact with an outgoing metal sheet, and the operator pushes a push handle backwards, so that the extrusion force of the pressing rod on the access metal sheet can be relieved, and the access metal sheet can bounce upwards through the elastic force of the access metal sheet; therefore, the purpose of network disconnection can be achieved, network disconnection operation is not convenient, and damage to a network end interface caused by repeated plugging and unplugging of a network cable is avoided.
Owner:GUANGDONG FOREIGN LANGUAGE ART VOCATIONAL COLLEGE

Load resistor device

The invention discloses a load resistor device. The load resistor device comprises an insulating bracket and a resistor rope, the insulating bracket comprises two panels which are arranged side by side at an interval; a plurality of rope penetrating holes through which the resistance rope can penetrate are formed in the panels; the resistance rope penetrates through the panel rope penetrating hole back and forth, the resistance rope comprises a heat-resisting main rope and a resistance wire, and the resistance wire is spirally wound on the heat-resisting main rope. When the load resistance box works, the resistance rope penetrates through the panel back and forth, heat is generated when the resistance rope works, the heat-resistant main rope is arranged to be of a main body structure, and the heat-resistant main rope can keep stable in size when the load resistance box works and is small in size change due to expansion caused by heat and contraction caused by cold by utilizing the heat-resistant performance of the heat-resistant main rope; after long-time use, good dimensional stability can be maintained, and short circuit between the resistance wires on the adjacent resistance ropes is avoided.
Owner:SHENZHEN ZENITHSUN ELECTRONICS TECH CO LTD

Low voltage shut-off system and apparatus therefor

ActiveCN115411810Bavoid shortingReduce maintenance costs
The application discloses a low-voltage shutdown and power grid activation system and equipment thereof, and relates to the technical field of battery protection, in particular to a low-voltage shutdown and power grid activation system and equipment thereof. The first voltage signal of a target battery is acquired through a battery sampling circuit; the controller performs voltage judgment on the first voltage signal, and when the first voltage signal is lower than a preset voltage threshold, a shutdown signal is delivered to the low-voltage shutdown circuit; then the low-voltage shutdown circuit performs shutdown processing on the auxiliary source of the transformer according to the shutdown signal of the controller; and the low-voltage protection circuit and the activation circuit perform start processing or clamping processing on the auxiliary source of the transformer according to the second voltage signal of the power grid. The application can realize low-voltage protection of the battery, prevent the continuous operation of the inverter from causing the battery to be empty, and based on the low-voltage protection of the battery, the inverter can be charged by the power grid when the power grid is powered, without artificially adding a power supply to the battery for charging, thereby saving the equipment maintenance cost, and can be widely applied to the technical field of battery protection.
Owner:GUANGZHOU SANJING ELETRIC

Battery test fixture and battery test frame

ActiveCN224231806UAvoid shortingThe layout is confusingMeasurement instrument housingElectrical batteryStructural engineering
The utility model provides a battery test fixture and a battery test frame, the battery test fixture comprises a bottom plate, a first support structure and a second support structure, the first support structure and the second support structure are both arranged on the bottom plate, the first support structure comprises a first support plate, and the second support structure comprises a second support plate. The first supporting plate and the second supporting plate are correspondingly arranged, the first supporting plate comprises a first supporting surface, the first supporting surface is used for supporting a first palladium sheet connected with a negative electrode of a to-be-tested battery, the second supporting plate comprises a second supporting surface, and the second supporting surface is used for supporting a second palladium sheet connected with a positive electrode of the to-be-tested battery. The test power lines and palladium sheets are stored through the supporting surfaces of the two supporting plates, so that disordered arrangement positions of the power lines and the to-be-tested battery are avoided, the operation table is arranged in order, and short circuit between the power lines and the power lines of different groups of tests is avoided.
Owner:JIANGSU RELIANCE ENERGY TECHNOLOGY CO LTD

Chopping disc for solving empty and hollow cigarette ends

The present invention discloses a chopping knife disk for solving the problem of empty and hollow ends of cigarettes, comprising a front chopping knife disk and a rear chopping knife disk rotating in opposite directions; the front chopping knife disk and the rear chopping knife disk are in the shape of a disk, and the outer edges of the disks are respectively provided with a lower wire clamping strip and an upper wire clamping strip protruding from the outer edges of the disks, and the front chopping knife disk and the rear chopping knife disk are provided with a wire clamping platform I and a wire clamping platform II which also have a lower wire clamping strip and an upper wire clamping strip at equal angles in the circumferential direction of the outer edges of the disks, and when the front chopping knife disk and the rear chopping knife disk rotate in opposite directions to the intersection, the lower wire clamping strip cooperates with the upper wire clamping strip to form an S-shaped wire clamping structure, and forms a periodic, upper and lower wire clamping part and a lower wire clamping part alternating up and down as the chopping knife disk rotates. The present invention has modified the structure of the chopping knife disk, and can clamp the tobacco in the process of trimming the tobacco bundle, fundamentally solving the problem that the lower brushing wheel takes the tobacco out of the tobacco bundle when brushing it, and avoiding the phenomenon of empty and hollow ends of cigarettes.
Owner:ZHANGJIAKOU CIGARETTE FACTORY

Polierzusammensetzungen und verfahren zur verwendung davon

UndeterminedAT1904229Tprevent shorting of electrical circuitshigh rate
This disclosure relates to a polishing composition that includes at least one abrasive; at least one nitride removal rate reducing agent, an acid or a base; and water. The at least one nitride removal rate reduce agent can include a hydrophobic portion containing a C4 to C40 hydrocarbon group; and a hydrophilic portion containing at least one group selected from the group consisting of a sulfinite group, a sulfate group, a sulfonate group, a carboxylate group, a phosphate group, and a phosphonate group; in which the hydrophobic portion and the hydrophilic portion are separated by zero to ten alkylene oxide groups. The polishing composition can have a pH of from about 2 to about 6.5.
Owner:FUJIFILM ELECTRONIC MATERIALS U S A INC

Intelligent detection equipment and detection method for appearance of polycrystalline diamond compact

The invention relates to the technical field of industrial defect detection, and discloses a polycrystalline diamond compact appearance intelligent detection device and a detection method.The polycrystalline diamond compact appearance intelligent detection device comprises a working table top, and an upper rack and a lower rack are arranged at the upper end and the lower end of the working table top; a mechanical arm control device, a moving device, a vertical microscope detection device, a horizontal microscope detection device, a rotating device and a measuring device are mounted on the surface of the worktable. The computer vision detection technology is used for replacing a traditional manual recognition means, the detection efficiency is remarkably improved, the false detection rate is greatly reduced, and the double leap of the detection speed and quality is achieved.
Owner:SHAANXI TAIHE TECH CO LTD

Safe solid electrolytic capacitor

The utility model discloses a safe solid electrolytic capacitor, which comprises a shell, a heat-conducting fin and a sealing seat, an anti-cracking groove is arranged at the center of the upper surface of the shell, a capacitor core is arranged in the shell, the surface of the capacitor core is wrapped by an insulating glue layer, the heat-conducting fin is arranged at the upper part of the capacitor core and is positioned in the shell, and a conducting hole and a plurality of conducting grooves are arranged on the surface of the heat-conducting fin. The sealing seat is arranged in the shell and is located below the insulating rubber layer, a reinforcing ring is arranged on the lower portion of the surface of the shell, the reinforcing ring is sunken into the surface of the sealing seat, the heat dissipation capacity of the capacitor is improved through the shell and the heat conduction piece, and then the high temperature resistance capacity of the capacitor is improved; when the capacitor is heated and bulged due to unstable voltage, the anti-cracking groove in the upper surface of the shell can crack preferentially, so that the shell is prevented from being excessively cracked, the capacitor core is ensured to be in a state of being wrapped by the shell, the circuit is prevented from being abnormal, and the safety degree of the capacitor is higher.
Owner:NANJING XINGFAN ELECTRONIC TECH CO LTD

Display panel and preparation method thereof

The embodiment of the invention discloses a display panel and a preparation method thereof, a second electrode is formed on a first electrode, and the second electrode covers an abnormal bulge and the first electrode. According to the display panel and the preparation method thereof, the second electrode is adopted to cover and flatten the abnormal protrusions formed on the first electrode, so that the light-emitting material layer of the light-emitting functional layer can cover the second electrode on the whole surface, the short circuit path of the first electrode and the third electrode is cut off, and short circuit of the first electrode and the third electrode is avoided.
Owner:TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD

Secondary battery and electric device

The secondary battery is provided with an anti-explosion assembly, one end of a main body in the anti-explosion assembly is inserted into a mounting hole of a top cover plate, the other end of the main body is located on the side, away from an electrode assembly, of the top cover plate in the first direction, and a channel penetrating through the main body in the first direction is formed in the main body; the diaphragm is internally connected to the main body to seal the channel, and the main body can be connected with the pipeline, so that when the secondary battery is subjected to thermal runaway, the main body can discharge thermal runaway gas generated by the electrode assembly into the pipeline through the channel, and the thermal runaway gas is subjected to oriented discharge through the pipeline; therefore, short circuit between the thermal runaway gas, electrolyte carried by the thermal runaway gas and other electric parts of the electric equipment is avoided, the use safety of the secondary battery and the electric equipment is ensured, and the service life of the secondary battery and the electric equipment is prolonged.
Owner:SUNWODA MOBILITY ENERGY TECHNOLOGY CO LTD

Foldable handrail

The utility model discloses a handrail, in particular to a foldable handrail, which comprises a base, a handrail main body, a reinforcing piece, a first connecting piece, a second connecting piece and a base protective cover, a limiting beam is arranged on the base, a first limiting part and a second limiting part are respectively arranged at two ends of the limiting beam, and positioning holes are formed in the first limiting part and the second limiting part. And the armrest main body is hinged with the first limiting part and the second limiting part. According to the utility model, a supporting effect can be provided for old people when the old people sit to go to the toilet, the armrest main body is made of a flat tube, can be mounted at the front end of the toilet, can support the two hands to hold, has a large assistance area, prevents the old people from leaning forward and falling down, reduces potential safety hazards and facilitates the life of the old people. And the toilet stool can be folded up and down for use, can be stored and does not occupy the toilet area.
Owner:RUIAN TEBANG BARRIER-FREE FACILITIES CO LTD

Battery piece and photovoltaic module

The invention discloses a battery piece and a photovoltaic module. The battery piece comprises a substrate, and the surface of the substrate is provided with an N-type doped layer, a P-type doped layer and an isolation region arranged between the N-type doped layer and the P-type doped layer; the N-type doping layer and the P-type doping layer are arranged in an interdigital manner, each of the N-type doping layer and the P-type doping layer comprises a main body part and a finger-shaped part, the main body parts extend along a first direction, and the finger-shaped parts are arranged on at least one side of the main body parts along a second direction; the finger-shaped part is provided with a current collection electrode extending along a second direction; the first insulating layer is arranged at the position, close to the main body part of the opposite conductive type, of the finger-shaped part; the first insulating layer covers the end portion of the collector electrode, and the first insulating layer and the adjacent isolation region are arranged at an interval in the second direction. The first insulating layer is utilized to play an insulating and isolating role, meanwhile, the shielding area of the first insulating layer on the surface of the substrate is reduced, and the problem of poor local connection of the interconnector caused by the fact that the interconnector is heightened due to the fact that the first insulating layer partially extends below the interconnector can also be avoided.
Owner:LONGI GREEN ENERGY TECHNOLOGY CO LTD XIXIAN NEW AREA BRANCH

Laser-induced phase change radio frequency switch with antireflection layer for enhancing absorption

The invention relates to a laser-induced phase change radio frequency switch with an anti-reflection layer for enhancing absorption. The switch comprises a laser light source and a switch structure, the switch structure comprises an anti-reflection passivation layer, a phase change material layer, a metal electrode layer and a dielectric substrate layer. The metal electrode layer and the phase-change material layer are arranged on the dielectric substrate layer, the metal electrode layer is located on the periphery of the phase-change material layer, and the anti-reflection passivation layer is located on the uppermost layer and used for completely covering the phase-change material layer; the anti-reflection passivation layer is a light-transmitting layer, and the anti-reflection passivation layer right above the phase-change material layer is used as a light incident surface of incident laser and an emergent surface of reflected laser; and the laser light source is arranged opposite to the anti-reflection passivation layer so as to induce the phase change material layer to generate phase change based on the anti-reflection passivation layer. The anti-reflection passivation layer is added on the surfaces of the phase change material layer and the metal electrode layer, the material refractive index and thickness of the anti-reflection passivation layer are controlled, laser reflection is reduced, and the problem that the light-operated phase change radio frequency switch is low in laser utilization rate is effectively solved.
Owner:NAT UNIV OF DEFENSE TECH

Heating furnace burner control device

The utility model relates to a heating furnace burner control device, which is characterized in that the input end of a total gas regulating valve is connected with a mixed gas pipeline, the output end of the total gas regulating valve is connected with a plurality of subsection gas pipelines, and each subsection gas pipeline is sequentially connected with a subsection gas regulating valve I, a subsection gas butterfly valve and a subsection gas regulating valve II; and the output end of the second sectional gas regulating valve is connected with the gas inlet of the burner of the corresponding section through a pipeline. The utility model has the advantages that the PLC master station gives opening instructions to the second segmented gas regulating valve, the first segmented gas regulating valve, the total gas regulating valve, the total air regulating valve, the first segmented air regulating valve and the second segmented air regulating valve through the HMI human-computer interaction screen, so that the opening of the regulating valves is adjusted, the opening of a hand valve does not need to be manually adjusted on site, and time and labor are saved.
Owner:ANSTEEL GRP CHAOYANG ANLING STEEL & IRON

Distribution box, battery pack and vehicle

The invention relates to a power distribution box, a battery pack and a vehicle. The power distribution box comprises a plurality of electrical components, a box body and a liquid medium, a mounting cavity is formed in the box body; the plurality of electrical components are mounted in the mounting cavity; the installation cavity is filled with the liquid medium, the liquid medium immerses at least one part of the multiple electrical assemblies, and the liquid medium comprises a cooling insulation arc extinguishing medium. The invention aims to solve the technical problems of complex structure, low cooling efficiency and poor product compatibility of the existing distribution box.
Owner:BYD CO LTD

Preparation method of chip packaging structure

The invention discloses a preparation method of a chip packaging structure, which is suitable for the technical field of semiconductors, and comprises the following steps: sequentially forming a first mask layer and a second mask layer which are stacked on a wafer; a conductive via hole is formed, the conductive via hole penetrates through the second mask layer and the first mask layer and extends into the wafer, the conductive via hole comprises a first sub-via hole located in the second mask layer, the first sub-via hole comprises a first opening close to the wafer and a second opening away from the wafer, and the area of the second opening is larger than that of the first opening. Forming a conductive structure in the conductive via hole, wherein the conductive structure comprises a first part located in the first sub-via hole; and removing the second mask layer to expose the first part of the conductive structure. The first portion of the conductive structure is removed. According to the technical scheme, the electrical performance of the chip packaging structure is improved.
Owner:BEIJING XINLI TECH INNOVATION CENT CO LTD

A compressor refrigeration system rapid oil return device and a refrigeration system

The utility model discloses a kind of compressor refrigeration system quick oil return device and refrigeration system, including compressor, gas-liquid separation tank, still including oil temporary storage tank;The liquid outlet of gas-liquid separation tank is communicated with oil temporary storage tank by liquid outlet pipeline;Oil temporary storage tank is communicated with the suction port of compressor by oil return pipeline;Oil temporary storage tank and compressor outlet are communicated by power line;First control assembly is set on the power line, second control assembly is set on the liquid outlet pipeline.The utility model increases the process of temporary storage tank flow, power line by in compressor refrigeration system, realize the quick backflow of lubricating oil in pipeline, avoid screw compressor long-term low oil level operation, ensure that compressor normal operation.
Owner:CHINA PETROLEUM & CHEMICAL CORP +1

Heater

The utility model discloses a heater, which comprises a shell, a confluence plate, a lead-out piece, a power supply plate and a plurality of heating units, the current input end of each heating unit is electrically connected to the first conductive part of the confluence plate; the current output end of each heating unit is electrically connected to the second conductive part of the confluence plate; the leading-out piece comprises an insulating piece, a first electric connecting piece and a second electric connecting piece; the insulating part wraps the first electric connecting part and the second electric connecting part; the two ends of the first electric connecting piece extend out of the insulating piece and are electrically connected with the first conductive part and the first pin of the power supply plate respectively; the two ends of the second electric connecting piece extend out of the insulating piece and are electrically connected with the second conductive part and the second pin of the power supply board respectively. According to the utility model, the first electric connecting piece and the second electric connecting piece which are used for electrically connecting the bus board and the power supply board are coated with the insulating pieces, so that short circuit between the first electric connecting piece and the second electric connecting piece and other parts can be effectively avoided, and the use safety of the heater is improved.
Owner:NINGGUO HAOCHENG AUTO ELECTRIC CO LTD

46.5 MHz small-size band-pass filter

The utility model discloses a 46.5 MHz small-size band-pass filter, which comprises a metal shell and a PCB (printed circuit board) covering the opening end of the shell, components of the band-pass filter are arranged on the surface, facing the inner cavity of the shell, of the PCB, an input end is arranged on the upper left side of the PCB, an output end is arranged on the lower right side of the PCB, and a left notch and a right notch are arranged at the positions, opposite to the input end and the output end, of the shell. The left notch and the right notch are respectively kept a certain distance away from the pads at the input end and the output end, two clamping pieces which are staggered left and right are arranged on the front side wall and the rear side wall of the shell, the two clamping pieces are inserted into through holes in the PCB and then are welded and fixed, and the shell is filled with sealant. According to the utility model, the metal shell is adopted to play a shielding role and a protection role; a gap is arranged to avoid short circuit between the metal shell and the bonding pad; the clamping piece is arranged, so that the connection reliability of the shell and the PCB can be ensured; and the filled sealant is thick, so that fixation and elastic buffering of internal components can be realized, and the connection reliability is higher.
Owner:GUIYANG XINLUO ELECTRONICS CO LTD

Display module, preparation method thereof and display device

The application belongs to the technical field of display, and discloses a display module, a preparation method thereof and a display device. The display module comprises a micro display screen body, a flexible circuit board, a metal boss and an adhesive. The micro display screen body comprises a first substrate, and a display area is arranged on the first substrate. A plurality of parallel and spaced PADs are arranged on one side of the display area, and the PADs are recessed on the first substrate. The flexible circuit board comprises a second substrate, and a plurality of gold fingers are arranged on the second substrate. The plurality of gold fingers correspond to the plurality of PADs one by one. The metal boss is provided with a plurality of first ends, and the first ends are abutted to the PADs. The second ends of the metal boss protrude from the first substrate. The adhesive is used to connect the second ends of the metal boss and the gold fingers. The application also provides a preparation method of the display module, and the preparation efficiency of the metal boss is improved. The application also provides a display device, which comprises the above display module and has high use reliability.
Owner:KUNSHAN FANTAVIEW ELECTRONICS TECH CO LTD

Semiconductor packaging structure and its formation method

An embodiment of the present application provides a semiconductor packaging structure and a method for forming the same, the packaging structure comprising: a first chip, the first chip comprising a first contact structure and a first through silicon via electrically connected to the first contact structure; the back side of the first chip having a groove, the groove exposing the first contact structure; a second chip, the second chip comprising a second contact structure; the first chip and the second chip being bonded to the second contact structure via the first contact structure to form the packaging structure having an air gap.
Owner:CHANGXIN MEMORY TECH INC

Lithium / sodium ion battery electrode structure, preparation method and application

The invention discloses a lithium / sodium ion battery electrode structure, a preparation method and application, and belongs to the technical field of chemical power sources, and the specific scheme is as follows: the lithium / sodium ion battery electrode structure comprises a plurality of active material regions, a plurality of metal ion source storage regions and a plastic-metal composite current collector, the plurality of active material regions and the plurality of metal ion source storage regions are alternately arranged on the surface of the plastic-metal composite current collector, and an insulating region is arranged between any active material region and the adjacent metal ion source storage region; the active material area is coated with an active material, and the metal ion source storage area is evaporated with a metal ion source. Through the partition structure design of the plastic-metal composite current collector, the negative electrode / positive electrode and the metal ion source electrode are arranged on the same plane, electronic insulation of the negative electrode / positive electrode and the metal ion source is realized, and the novel electrode structure provides a solution for the lithium / sodium ion battery with high specific energy and long service life.
Owner:SHANGHAI HANHANG TECH CO LTD