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315results about How to "Free from damage" patented technology

Preparation method of high-strength semi-solid lithium battery diaphragm

The invention discloses a preparation method of a high-strength semi-solid lithium battery diaphragm, and belongs to the technical field of battery diaphragms. The invention discloses a preparation method of a high-strength semi-solid lithium battery diaphragm. The preparation method comprises the following steps: S1, preparing an LLTO active skeleton with a 3D nano structure and preparing a gel matrix; s2, embedding the gel matrix into the active skeleton to form a rapid ion transport layer; s3, embedding the gel matrix into the inert skeleton to form a stable layer; and S4, combining the rapid ion transport layer and the stable layer together to form the semi-solid lithium battery diaphragm. The problems of battery deformation, liquid leakage and even low guarantee and safety performance caused by collision or high temperature in the using process in the prior art are solved, the performance of the semi-solid lithium battery diaphragm is enhanced, and the deformation of the internal structure of the battery is reduced, so that the overall stability of the battery is enhanced, and the service life of the battery is prolonged. Battery short circuit can be effectively prevented, and the battery is protected from being damaged, so that safe use of the battery is ensured.
Owner:SINOMA LITHIUM BATTERY SEPARATOR CO LTD

Cutterhead buffering and oil supplementing overflow valve group

The invention discloses a cutter head buffering and oil supplementing overflow valve group, which belongs to the technical field of coal mine construction, and comprises an energy accumulator, a valve block and a pressure measuring joint, an oil duct R1-R2 and an oil duct L1-L2 are formed in the valve block, the oil duct R1-R2 comprises an oil port R1 and an oil port R2, the oil duct L1-L2 comprises an oil port L1 and an oil port L2, the oil port R2 and the oil port L2 are used for being connected with a main pump side oil way, and the oil port R1 and the oil port L1 are used for being directly installed on a motor oil port; the energy accumulator is connected with the valve block and used for releasing stored hydraulic oil when the system generates a negative pressure trend, the energy accumulator comprises a first branch communicated with the R1-R2 oil ducts and a second branch communicated with the L1-L2 oil ducts, a first one-way valve is arranged on the first branch, and a second one-way valve is arranged on the second branch; two oil ways are arranged between the R1-R2 oil ways and the L1-L2 oil ways, and a first overflow valve and a second overflow valve are arranged on the two oil ways respectively. According to the invention, the risk of damage to the closed hydraulic system caused by high-frequency impact of the cutter head hydraulic system of the hob type rock tunneling machine can be reduced.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Switch cabinet

A switch case disclosed by the present invention comprises a case body mechanism, a modular mechanism and a heat dissipation mechanism, the heat dissipation mechanism is inserted into the case body mechanism, the modular mechanism is inserted into the case body mechanism, and the case body mechanism comprises a machine body unit and a cover plate unit. And the cover plate unit is in threaded connection with the top of the machine body unit. By adopting the modular design, when the network scale is expanded or new functions need to be added, only corresponding modules need to be added, and the whole case does not need to be replaced, so that the extension and upgrade cost is greatly reduced, the extension and upgrade time is greatly shortened, extension and upgrade are easy, and the heat dissipation efficiency is improved by optimizing the design of a heat dissipation system. According to the heat dissipation system, the operation temperature of the switch can be effectively reduced, so that the energy consumption of the heat dissipation fan is reduced, meanwhile, the optimal design of the heat dissipation system also can avoid potential safety hazards caused by overheating, and the side surface is matched with the top heat dissipation design, so that air flow can be formed, and heat can be rapidly extracted.
Owner:NANTONG KANGSENXI INFORMATION TECHNOLOGY CO LTD

Junction box protection device for refrigeration compressor

The invention relates to the technical field of refrigeration compressors, and discloses a junction box protection device for a refrigeration compressor, the junction box protection device comprises a refrigeration compressor body, a power panel is arranged on the outer end face of the refrigeration compressor body, and a protection mechanism, a dehumidification mechanism and an assembly mechanism are arranged on the outer side face of the power panel; the protection mechanism comprises a driving part and a protection part; the protection part is located on the inner side face of the driving part. Through the protection mechanism, a rotating handle in a driving part is utilized, so that the rotating handle rotates to drive a threaded rod, the threaded rod drives a threaded block, and the threaded block drives an upper closing plate, so that the upper closing plate slides out of a through groove, a movable plate performs angle change under the action of a polished rod, the top of the junction box is opened, and wires of the junction box are placed above a lower closing plate; therefore, the upper plywood and the lower plywood are enabled to protect the wires through reverse operation, and the junction box and the wires are effectively protected from being damaged by external environments, such as dust, moisture, corrosive substances and the like.
Owner:HEBEI AOTAI REFRIGERATION EQUIP CO LTD

Butt joint tool for insertion loss and return loss test

ActiveCN222671380Uimprove positionprevent looseningOptical apparatus testingTest efficiencyStandard line
The utility model relates to the technical field of optical communication testing, in particular to an insertion loss and return loss testing butt joint tool. Comprising a bottom plate, and a standard line positioning block is arranged on the bottom plate and used for positioning a standard line; a slide rail is arranged on the bottom plate, a slide block is arranged on the slide rail, and a test line positioning block is arranged on the slide block and used for positioning a test line; the slide block slides on the slide rail, so that the test line positioning block moves in the direction close to or away from the standard line positioning block; a mounting groove is formed in the standard line positioning block, and a standard line connector is arranged in the mounting groove; a limiting block is arranged on the standard line positioning block, an elastic piece is arranged on the limiting block, one end, far away from the limiting block, of the elastic piece abuts against the standard line connector, and the limiting block and the standard line connector are matched to release or extrude the elastic piece through sliding of the standard line connector in the mounting groove in the direction close to or far away from the test line positioning block. The method has the advantages that damage to the end face of the workpiece in the insertion loss test is reduced, and the test efficiency is improved.
Owner:EAST POINT COMM TECH CO LTD

A DSP camera control circuit for a golf simulation system detector

The utility model discloses a DSP camera control circuit of golf simulation system detector, 40 feet, 59 feet, 65 feet, 68 feet, 87 feet, 77 feet, 66 feet, 67 feet of blackfin digital signal processor U2 respectively correspond to be connected with resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, 8 feet, 10 feet, 28 feet, 24 feet, 25 feet, 32 feet, 33 feet, 30 feet, 31 feet of CMOS image sensor U4 respectively correspond to be connected with resistance R12, resistance 13, resistance 14, resistance R15, resistance R16, resistance R17, resistance R10, resistance 11, resistance 19, the 23 feet of CMOS image sensor U4 is connected with CMOS logic chip U5, and the 5 feet of CMOS logic chip U5 connects electrolytic capacitor C2 and power supply end CAM3V3, and the resistance R18 is connected between the 1 foot and 3 feet of CMOS logic chip U5, and the 26 feet, 22 feet, 23 feet of CMOS image sensor U4 respectively correspond to be connected with resistance R20, resistance 21, resistance 22, and the resistance of the product plays current -limiting protection and impedance matching, and the protection circuit is prevented from being damaged.
Owner:GUANGZHOU CHIYI TECHNOLOGY CO LTD

Outdoor three-proofing router

The utility model discloses an outdoor three-proofing router which comprises a router body, the outer wall of the router body is fixedly connected with a casing, the top of the casing is fixedly connected with an antenna, the top of the casing is fixedly connected with a water baffle, one side of the casing is fixedly connected with an installation assembly, and the other side of the casing is fixedly connected with a waterproof cover. The bottom of the machine shell is fixedly connected with a wire arrangement assembly, and one side of the machine shell is fixedly connected with a protection assembly. The mounting assembly comprises a guide rod; and the outer wall of the guide rod is fixedly connected with a spring. According to the outdoor three-proofing router, the internal router is protected through the shell, in addition, the springs are arranged outside the guide rods and used for connecting the mounting plate and the shell, vibration and impact from the external environment can be effectively absorbed and dispersed through the arrangement of the springs when collision occurs, and when the router is vibrated, the springs can deform, so that the router is prevented from being damaged, and the service life of the router is prolonged. Therefore, the influence of vibration on the router in the casing is relieved, and the router is protected from being damaged.
Owner:SHENZHEN KANGYUAN INTELLIGENT CO LTD

Electric motors, electric propulsion systems and aircraft

ActiveCN224427814Ulightning highImprove electrostatic protection abilityFlight vehicleControl theory
This application provides an electric motor, an electric propulsion device, and an aircraft. The electric motor includes: a stator having a cavity; a rotor rotatably connected to the stator via a shaft; and the rotor being insulated from the stator; a conductive component disposed within the cavity, one end of the conductive component being conductively connected to the shaft, and the other end extending to the outside of the electric motor. The electric motor of this application, by incorporating the conductive component, creates a complete low-impedance electrical path between the shaft and the conductive component, allowing current that might be input into the electric motor via the rotor hub to be output to the outside of the electric motor, thus improving the electrical protection performance of the electric motor.
Owner:SICHUAN AEROFUGIA TECH DEV CO LTD

visual tactile sensor

The application discloses a visual-tactile sensor, which comprises a touch module, a visual module and a first sealing element, wherein the touch module is an elastomer, and an internal part of the touch module is provided with a pattern layer so that the touch module produces pattern deformation when contacting with an external object; the visual module comprises a visual component and a shell, the shell is provided with an accommodating space and a first opening communicated with the accommodating space, the touch module is detachably arranged at the first opening, and the visual component is arranged in the accommodating space and used for collecting images of the deformation of the touch module; and the first sealing element is arranged at a connecting position of the touch module and the shell. In this way, the visual-tactile sensor of the application effectively realizes the sealing protection of the key interface part by arranging the first sealing element at the connecting position of the touch module and the shell, so as to protect the visual component and other precise elements arranged in the accommodating space from being polluted or damaged.
Owner:DAIMON (SHENZHEN) ROBOTICS TECHNOLOGY CO LTD

Peanut seeding device for agricultural machinery

ActiveCN224402177UReduce operating linksImprove seeding efficiencySeederAgricultural engineering
The utility model discloses a kind of peanut seeding devices for agricultural machinery, including carrier structure, which is dragged forward by agricultural machinery, ditching device, the ditching device is installed at the bottom of the carrier structure, and the ditching device is provided with more than one, seeding mechanism, the seeding mechanism is installed by the carrier structure, the seeding mechanism corresponds to the ditching device, and the seeding mechanism spreads seeds into planting groove opened by the ditching device;Soil covering mechanism, the soil covering mechanism is installed by the carrier structure, and the soil covering mechanism re-enters planting groove into soil that ditching device pushes away;The device advances in the form of dragging, and high-efficiency seeding can be realized.
Owner:微山县农业机械现代化发展促进中心

Gamma-cyclodextrin crystal form and preparation method thereof

The invention provides a gamma-cyclodextrin crystal form A and a preparation method thereof, an X-ray powder diffraction pattern of the gamma-cyclodextrin crystal form A has characteristic peaks when a 2 theta value is 9.15 + / -0.2 degrees, 12.04 + / -0.2 degrees and 16.35 + / -0.2 degrees, and the preparation method comprises the following steps: adding a certain amount of gamma-cyclodextrin into a certain amount of water, stirring, and carrying out ultrasonic dispersion to obtain a gamma-cyclodextrin crystal form A; the preparation method comprises the following steps: covering a bottle with a cover, heating in a biochemical incubator, dissolving, filtering a dissolved clear solution into a nuclear magnetic tube, adding a certain amount of hydroxypropyl methyl cellulose, vacuumizing, introducing nitrogen, fastening a rubber plug, heating in the biochemical incubator, setting heating and cooling procedures of the biochemical incubator, crystallizing, separating out white cluster-shaped solids at the bottom of the bottle, and drying, thereby obtaining the white cluster-shaped solid. And separating out a solid to obtain the gamma-cyclodextrin crystal form A. The crystal form A is low in energy, more stable, higher in stacking density and convenient to package, transport and store.
Owner:SHANGHAI SHUYA BIO-TECH CO LTD

Energy-saving high-low voltage power distribution cabinet with relay protection

The utility model discloses an energy-saving high-low voltage power distribution cabinet with relay protection, and particularly relates to the technical field of energy-saving high-low voltage power distribution cabinets, which comprises an energy-saving high-low voltage power distribution cabinet main body, and the front side of the energy-saving high-low voltage power distribution cabinet main body is movably connected with a cabinet door through a hinge. A relay main body is movably arranged at the top of an inner cavity of the energy-saving high-low voltage power distribution cabinet main body, a bottom frame is fixedly connected to the bottom end of the energy-saving high-low voltage power distribution cabinet main body, a heat dissipation assembly is arranged on the bottom frame, and the heat dissipation assembly comprises a blower, a three-way pipe and two first nozzles. According to the energy-saving high-low voltage power distribution cabinet, air between the two first nozzles enters the three-way pipe through operation of the blower, cooling liquid in the bottom frame absorbs heat in the air, finally cold air is discharged through the output end of the blower, heat dissipation is conducted on electrical equipment, the structure is simple, the heat dissipation effect is good, meanwhile, moisture does not easily enter the energy-saving high-low voltage power distribution cabinet body, and the service life is long. And the service life of the electrical equipment is effectively prolonged.
Owner:HENAN XINYUESHENG ELECTRIC CO LTD

Electric servo control universal testing machine

The utility model discloses an electric servo control universal testing machine which comprises a base, a pressure detection table is arranged in the base, a supporting plate is arranged in the side direction of the base, and supporting frames are arranged at the two ends of the supporting plate. A downward pressing push plate is arranged on the inner side wall of the supporting plate, a first sliding rail and a second sliding rail are arranged on the side wall of the supporting frame from inside to outside, a first protection frame is arranged on the first sliding rail in a sliding mode, and a second protection frame is arranged on the second sliding rail in a sliding mode; the first protection frame and the second protection frame are arranged, and the sliding stroke of the second protection frame is higher than that of the first protection frame, so that scrap splashing caused by material crushing in the test process is effectively prevented. By means of the double-layer protection design, the risk of injury to surrounding equipment and workers can be greatly reduced, and the safety of the test process is improved. Splashed chippings have large kinetic energy and are prone to damaging a testing machine and other peripheral equipment.
Owner:DALIAN TIANYINENG EQUIP MFG CO LTD

A geothermal energy adjustable generation system based on carbon dioxide working medium

The application discloses a geothermal energy adjustable power generation system based on carbon dioxide working medium, which comprises a power generation well, a temperature and pressure adjusting device connected through a pipeline, a gas-liquid heat exchange device connected with the temperature and pressure adjusting device at one end and connected with a steam superheating device at the other end, a heat supply device and a turbine arranged on the steam superheating device, a power generation device connected with the turbine, the power generation device connected with the gas-liquid heat exchange device through a pressure adjusting device, a plunger pump connected with a recharging well at one end and connected with the gas-liquid heat exchange device through a refrigeration device at the other end. The system can further heat the carbon dioxide working medium after being converted into steam, thereby improving the temperature and pressure of the steam and the power generation efficiency of the turbine. Moreover, the output of the heat supply device is adjusted, the rotating speed of the turbine and the output power of the power generation device are adjusted, the adjustability of the power generation capacity is realized, and the defect of the vacancy of the technology in China is solved.
Owner:XIAN THERMAL POWER RES INST CO LTD +1

High-resolution transmission device for flexible flat cable (FFC)

The utility model discloses an FFC flexible flat cable high resolution transmission device, which relates to the FFC flat cable technology field, and comprises a connector main body and an interface slot, the interface slot is provided with a flat cable main body, and the joint of the flat cable main body and the interface slot is provided with a flat cable protection mechanism. The flat cable protection mechanism comprises a contraction cylinder, a straight cylinder and an expansion cylinder which sleeve one end, close to the interface slot, of the flat cable main body, the contraction cylinder and the expansion cylinder are positioned on two sides of the straight cylinder and are arranged in a mirror image manner, and the longitudinal sections of the expansion cylinder and the straight cylinder are semicircles which are gradually reduced towards the straight cylinder; according to the utility model, a progressive protection channel is formed through the flat cable protection mechanism composed of the contraction cylinder, the straight cylinder and the expansion cylinder, the diameter of the inlet end of the contraction cylinder is large, flat cables can enter smoothly, and the semi-arc-shaped raised lines on the inner wall of the straight cylinder are made of elastic rubber materials, so that the frictional wear between the flat cables and the channel is reduced, and the service life of the flat cables is prolonged. And the outlet end of the expansion cylinder is gradually expanded, so that the bending stress of the flat cable is effectively relieved.
Owner:SHENZHEN WENXIN ELECTRONICS

Heat pump system

The heat pump system comprises a circulation loop and a liquid storage tank, the circulation loop comprises a compressor, a heat exchanger, a coil pipe, an expansion valve and a four-way valve, the coil pipe communicates with the heat exchanger through the expansion valve, and the compressor is provided with an air inlet end and an air outlet end; the four-way valve is used for selectively communicating the coil pipe or the heat exchanger with the air outlet end or the air inlet end; the coil pipe is provided with a distribution end capable of being communicated with the expansion valve and a backflow end capable of being communicated with the compressor, the liquid storage tank is connected with the backflow end through a first pipeline, and a first switch valve is arranged on the first pipeline. According to the heat pump system, the stability and the operation efficiency during mode switching are improved.
Owner:TRANE AIR CONDITIONING SYST (CHINA) CO LTD

Air conditioner mounting and supporting structure for constructional engineering

The utility model relates to the technical field of constructional engineering, and discloses an air conditioner mounting and supporting structure for constructional engineering, which comprises two fixing frames, a plurality of connecting plates are fixedly mounted between the two fixing frames, and fixing plates are fixedly mounted at two ends of the two fixing frames. Sliding grooves are formed in the outer surfaces of the two fixing frames, a plurality of threaded grooves are formed in the outer surfaces of the two fixing frames, the threaded grooves are formed in one sides of the sliding grooves, and a supporting mechanism is installed on one sides of the fixing frames. Through cooperative work of the sliding groove, the threaded groove and the supporting mechanism, the supporting structure adapts to different air conditioner installation requirements, the situation that punching installation needs to be conducted again when the installation height needs to be finely adjusted is avoided, and the universality of the supporting structure is improved.
Owner:王心

Blood vessel suturing device

The utility model discloses a blood vessel suturing device which comprises a shell, a needle handle assembly and a sheath tube assembly are arranged at the two ends of the shell respectively, the needle handle assembly comprises a needle handle connecting piece, the needle handle connecting piece is movably connected with the shell, and a safety device is arranged between the needle handle connecting piece and the shell. The safety device comprises a sliding block and a positioning block, and the sliding block is connected with the needle handle connecting piece; the safety device is arranged at the joint between the needle handle assembly and the shell, the safety device limits the connection between the needle handle assembly and the shell by arranging the sliding block, when the sliding block does not slide towards one side of the shell, the sliding block limits the needle handle assembly and the shell, and when the shell moves towards one side of the shell by a certain distance, the sliding block can slide towards the other side of the shell. Namely, after the needle head is connected with the needle sleeve, the safety device relieves limiting between the needle handle assembly and the shell, the needle handle assembly can be pulled out of the shell, and the situation that the interior of the stitching instrument is damaged due to misoperation of an operator is avoided.
Owner:HUNAN RONGKAI TECHNOLOGY CO LTD

A trackside equipment data processing board

ActiveCN224457351Uavoid lossrecord in timeCapacitanceReal-time clock
This utility model discloses a data processing board for trackside equipment, belonging to the technical field of subway trackside equipment. It includes a data processing module, a soft-start output module, a power-down voltage monitoring module, an RTC real-time clock module with a first energy storage capacitor, a power supply module with a second energy storage capacitor, and a data interface module. The data processing module is electrically connected to the other modules. The power supply module provides the operating voltage to the board, and its second energy storage capacitor temporarily supplies power to the data processing module during brief external power outages to record the voltage status data at the moment of power failure. The first energy storage capacitor of the RTC real-time clock module maintains clock operation for a preset duration after power failure. This utility model solves the problems of easy data loss and clock failure during power failures in traditional boards. It features high structural integration, stable operation, and accurate recording of power-down fault conditions, meeting the data continuity requirements of subway trackside equipment.
Owner:GUANGZHOU YUNDA INTELLIGENT TECH CO LTD

A sintering machine trolley

The present application provides a sintering machine trolley, comprising a trolley body, end bars mounted on the trolley body and rollers, the end bars are detachably connected with the trolley body through spring pin mechanisms, and the rollers are bearing embedded rollers in a modular assembly form. The present application improves the fixing and mounting mode of the end bars and the structure form and mounting mode of the rollers, overcomes the defects of the complex mounting structure of the end bars and the rollers in the traditional trolley, and the difficulty in mounting and detaching, makes the mounting and detaching of the end bars and the rollers more convenient and fast, and the structure is compact and reasonable, and easy to maintain.
Owner:MCC NORTH (DALIAN) ENG TECH CO LTD

Ion source upper lid assembly and ion source device

The application provides an ion source upper cover assembly and an ion source device. The fixed shielding cage in the ion source upper cover assembly can prevent the annular filament from being directly in contact with external structures to cause deformation or damage. The structure of the annular filament can effectively push the hot electrons emitted by the annular filament towards the ionization chamber, improve the ionization effect, and the ion source device is provided with the annular filament. The annular filament, the ionization cylinder and the shielding cage are coaxial, so that the electrons emitted by the annular filament can move in a more uniform electric field, thereby improving the probability of electron bombardment on the sample gas and improving the ionization efficiency and stability of the ion source device. Meanwhile, the ion source device has a wide range of emission current dynamic interval, strong anti-interference ability and wide range of sensitivity linear plateau area. The total pressure focusing electrode structure in the ion source device can also monitor the vacuum value in the detected space in real time, thereby playing a role in protecting the filament and the vacuum system.
Owner:YIRUI IMAGING TECH CHENGDU CO LTD

Engineering machinery spring rolling clamp

ActiveCN224058605UImprove affordabilityeffective absorptionScrew threadThreaded rod
The utility model relates to an engineering machinery spring rolling clamp which comprises a clamp body, the right end of the clamp body is fixedly connected with a fixing plate, an electric push rod is installed at the upper end of the fixing plate, the power output end of the electric push rod is fixedly connected with an upper clamping plate, and the right end of the clamp body is fixedly connected with a lower buffering plate located on the lower side of the upper clamping plate. The lower buffering plate comprises a lower clamping plate fixedly connected with the clamp body, the outer end of the lower clamping plate is sleeved with an outer protection frame, two symmetrical buffering wrapping layers are arranged between the outer protection frame and the lower clamping plate, a threaded hole is formed in the bottom end of the outer protection frame, a threaded rod is connected into the threaded hole in a threaded mode, and the upper end of the threaded rod makes contact with and abuts against the lower clamping plate. And the buffering wrapping layer comprises the first buffering layer and the second buffering layer, the first buffering layer is located on the outer side of the second buffering layer, when the round steel is bent, the lower clamping plate can be protected and cooled, the lower clamping plate is not prone to damage in the long-term use process, and the service life of the lower clamping plate is prolonged.
Owner:CHANGZHOU XINHUAMING MACHINERY TECHNOLOGY CO LTD

A purified terephthalic acid filtering device

ActiveCN224404515Uavoid impact damageTroubleshoot damaged technical issuesProcess engineeringEnvironmental engineering
The utility model discloses a kind of terephthalic acid filtering devices, including shell, the shell is installed on external equipment, pressure regulating mechanism is provided on the shell, the pressure regulating mechanism includes water inlet pipe, spacer, filter bag and water outlet pipe, the water inlet pipe and water outlet pipe are respectively installed in the both sides of the shell, the spacer is installed in the shell, the water inlet pipe is connected in the upper layer of spacer, the water outlet pipe is connected in the lower layer of spacer, overflow pipe is equipped with on the water inlet pipe, this innovative terephthalic acid filtering device is through the intelligent pressure regulating system of careful design, effectively solve the technical problem that filter bag in traditional equipment is damaged due to pressure fluctuation, realizes the safe and stable operation of production process, and its core technical advantage lies in introducing an automatic pressure regulating mechanism, can respond to the fluctuation of feed pressure in real time, and automatically start pressure relief protection when pressure exceeds safety threshold.
Owner:CHONGQING NUOJI ENERGY SAVING NEW MATERIALS CO LTD

Switching DC power supply with filtering anti-burning circuit

The utility model discloses a switch direct-current power supply with a filtering anti-burning circuit, which mainly solves the problem that the existing switch power supply is easy to short-circuit and cannot be used normally. The switch direct-current power supply comprises a full-bridge rectifier D connected in series with the input end of an alternating-current power supply, a power-on protection circuit connected with the input end of the alternating-current power supply, a surge protection circuit connected with the full-bridge rectifier D, a filtering anti-burning circuit connected with the surge protection circuit, and a short-circuit protection circuit connected with the filtering anti-burning circuit, and the direct-current output end is connected with the short-circuit protection circuit. Through the above design, the switch DC power supply effectively solves various unstable factors, such as voltage fluctuation, short circuit and surge, possibly encountered by a traditional DC power supply in a complex line and a severe environment through the accurately designed circuit assembly, thereby substantially improving the operation stability and safety of electronic equipment.
Owner:MYNICE OPTOELECTRONICS CO LTD

Modularized flue gas baffle door

When smoke suddenly flows back, a backflow plate and an inclined telescopic rod are in linkage to enable the whole baffle door module to be rapidly closed, backflow is rapidly blocked, front-end equipment is protected, when the baffle door is closed, a fan-shaped air bag is pressed, gas enters an elastic gas storage bag through a gas pipe, the fan-shaped air bag and the elastic gas storage bag jointly compress an elastic liquid storage bag, and the elastic gas storage bag and the fan-shaped air bag are closed. The elastic liquid storage bag can be recovered to the initial state, the contact area between the sealing strip and the frame is reduced, the friction force is reduced, the service life of the sealing strip is prolonged, in addition, the self-locking mechanism provides reliable mechanical guarantee, and the service life of the sealing strip is prolonged. When the baffle door is in an open state, the electromagnet can be controlled to drive the guide rod to reciprocate and drive the top plate to reciprocate, vibration is generated to clean ash of the whole baffle door module, smoke dust adhesion is prevented from affecting the air tightness, and long-term stable operation of the system is ensured.
Owner:JIANGSU HANTANG ENVIRONMENTAL PROTECTION TECH CO LTD

Chip load isolation control circuit

The invention discloses a chip load isolation control circuit, and relates to the technical field of control circuits, the chip load isolation control circuit comprises a micro-control unit, a port expansion chip and a plurality of groups of silicon controlled rectifiers, and three groups of optocoupler isolation circuits are arranged between the micro-control unit and the port expansion chip; and the three groups of optocoupler isolation circuits are connected to the input end of the port expansion chip so as to realize isolation control between the micro-control unit and the port expansion chip. According to the invention, three groups of optocoupler isolation circuits are adopted to replace the original structure of eight groups of isolation optocouplers and triodes, so that the isolation control of eight paths of loads can be realized with fewer components, and the number of required electronic components is greatly reduced; the design not only maintains the effectiveness of multi-load isolation control, but also significantly reduces the material cost and the complexity of the whole system.
Owner:HEFEI WEIXIN CNC TECH CO LTD