109results about How to "Free from influence" patented technology

The invention provides a novel nano material as well as an immobilized enzyme and application thereof, and relates to the fields of biotechnology and application, material synthesis and application, water environment treatment and environmental protection. The particle size of the nano material is 2-30 microns, and the aperture of the surface is 2-30 nm; the solid nanomaterial is prepared by the following method: adding an alkali solution into a metal salt solution, fully mixing, then adding a ligand aqueous solution, fully reacting, and then separating to obtain the solid nanomaterial. When the material is used for immobilizing enzyme, the particle size of the obtained immobilized enzyme is 2-20 microns, and the aperture of the surface is 1-15 nm; the preparation method comprises the following steps: mixing an enzyme with a ligand aqueous solution, then adding the mixture into a metal salt mixed solution, and separating a solid product. The nano material has excellent biocompatibility and mild synthesis conditions, can protect the reaction activity of the enzyme under harsh conditions such as high temperature, acid and alkali, and improves the recycling capability and storage capability of the enzyme.

The utility model relates to the technical field of GIS discharge sensors, in particular to an installation mechanism of a GIS partial discharge sensor, which comprises a base, a support frame and a pressing block, the support frame is arranged above the base, the pressing block is connected to the bottom of the support frame in a sliding manner, and three limiting grooves are formed in the top of the pressing block at equal intervals. And three polished rods are fixedly connected to the top of the inner wall of the supporting frame at equal intervals, limiting plates are fixedly connected to the exteriors of the polished rods, the limiting plates make contact with the tops of the abutting blocks, and the bottoms of the polished rods extend into the corresponding limiting grooves. The GIS partial discharge sensor buffering device has the advantages that the GIS partial discharge sensor is buffered, the partial discharge sensor can be protected from being affected by the external environment, normal operation of the sensor is guaranteed, proper protection is provided for the sensor, the operation reliability of the whole GIS device can be improved, and the reliability of the GIS device is improved. Unnecessary operation and maintenance intervention caused by sensor faults is reduced, and compared with a traditional device, the operation quality and the use efficiency are greatly improved.

The utility model discloses a battery pack PDU device for an electric heavy truck, which comprises a box body with an opening at the upper end and an upper cover, the upper cover covers the opening of the box body, and an electric device mounting seat, an electric device assembly, a copper bar assembly, a BMS adapter bracket and a BMS controller which are distributed from bottom to top are arranged in the box body. A plurality of columns are fixedly arranged on the inner bottom surface of the box body, the electric device mounting seat is detachably arranged at the upper ends of the columns, the electric device assembly is arranged on the upper end surface of the electric device mounting seat, the copper bar assembly is arranged at the upper end of the electric device assembly, the BMS adapter bracket is arranged above the copper bar assembly, and the BMS adapter bracket is arranged above the copper bar assembly. The BMS controller is arranged on the upper end surface of the BMS adapter bracket; the box has the advantages that the electric devices can be orderly arranged in the box body, and the space utilization rate is high.

The invention belongs to the technical field of pork flavor additives, and particularly relates to a precursor substance additive composition for adjusting pork flavor and a preparation method thereof. According to the precursor substance additive composition prepared by the preparation method disclosed by the invention, various effective components such as the folium cortex eucommiae extracting solution, the liquorice root and the hawthorn fruit are scientifically proportioned and are matched with the plant slow-release agent and the blender, so that the gastrointestinal function and the disease resistance of pigs are regulated through a synergistic effect, and the contents of meat flavor pre-substances such as linoleic acid and inosinic acid in pork are increased; the plant slow-release agent is prepared in an embedding emulsion mode, release of active ingredients can be controlled in the digestion process of pigs, lasting nutritional supplement is provided, the anti-oxidation and immune effects of plant extracts are enhanced, the palatability of the pig feed is improved through the blender, the taste is enhanced, meanwhile, the antibacterial effect is enhanced, intestinal health and digestion are promoted, and the effect of improving the immunity of the pigs is achieved. The obtained pork is fresh, tender and juicy, and meets the requirements of consumers for high quality of meat products.

The invention discloses a preparation method and application of POSS-SH based on trimethoxysilane, and belongs to the technical field of organic-inorganic hybrid materials. The preparation method comprises the following steps: (1) adding (3-mercaptopropyl) trimethoxysilane and a methanol aqueous solution into a round-bottom flask, uniformly mixing, adjusting the pH value to 7 by using hydrochloric acid, and reacting at 30-40 DEG C for 2-3 hours to obtain a mixed solution A; (2) adding (3-aminopropyl) trimethoxysilane into the mixed solution A, uniformly mixing, adjusting the pH value to 6 by using hydrochloric acid, and reacting at 50-60 DEG C for 1-2 hours to obtain a mixed solution B; and (3) adding vinyltriethoxysilane into the mixed solution B, uniformly mixing, adjusting the pH value to 3-5 by using hydrochloric acid, reacting at 80-100 DEG C for 15-24 hours, filtering, washing, extracting and drying to obtain a POSS-SH product. The POSS material prepared by adopting a step-by-step reaction method of three silane raw materials is applied to deaggregation of insoluble organic drug molecules with amino groups / hydroxyl groups, so that the dispersity and the stability of the drug molecules are improved.

The present invention discloses an easily removable protective cover for a muffler module. The protective cover body has a sealing adhesive for quick sealing after the muffler module is inserted. An easy-tear strip with a reserved easy-tear seam is arranged at the front and rear center position of the protective cover body. A reserved finger buckle is arranged at the upper end or lower end of each vertical segment of the easy-tear strip. A removal component is arranged outside each horizontal segment of the easy-tear strip. The removal component includes a removal driving piece, a pull rope, a fixing nail and a pull ring. The removal driving piece is composed of two upper and lower clamping pieces, and one end of the horizontal segment and one end of the pull rope are clamped in the middle and fixed firmly. The fixing nail is installed at the other end of the horizontal segment to fix the other end of the pull rope. The pull rope passes through the fixing nail and is tied with a pull ring on the end. At the same time, an array type muffler and a method for installing and removing the protective cover of the array type muffler are also disclosed. It can avoid the influence of dust, sewage and moisture on the muffler module at the construction site, and solve the problem that the protective film is difficult to remove.

The invention discloses a preparation method of a formaldehyde-free high-performance vegetable protein adhesive. According to the formaldehyde-free high-performance vegetable protein adhesive disclosed by the invention, the addition of the plant-based degerming agent brings remarkable beneficial effects to the formaldehyde-free high-performance vegetable protein adhesive. Firstly, tea polyphenol, aloe extract, honeysuckle flower extract, antibacterial silver ions and other components in the degerming agent endow the adhesive with excellent antibacterial performance, growth of bacteria and mould is effectively inhibited, and the service life of the adhesive is prolonged. Meanwhile, due to the moisturizing effect of the hyaluronic acid and the glycerol, the water resistance of the adhesive is improved, and it is ensured that the adhesive can still keep a stable bonding effect in a humid environment. In addition, the thickening effect of the xanthan gum enhances the bonding strength of the adhesive, so that the adhesive is firmer in the application process. The natural plant extract and essential oil components in the plant-based degerming agent not only improve the environmental friendliness of the adhesive, but also bring natural fragrance to the adhesive, improve the use experience, and bring more environment-friendly, healthy and efficient choices to the adhesive industry.

The utility model discloses a novel disc-type steering mechanism of a three-wheel passenger car, which belongs to the technical field related to vehicle accessories and comprises a frame, a front fork, a steering gear box, a steering connecting rod, a steering rocker arm, a steering column, a steering disc, a front fork vertical pipe, a steering gear box support, a steering column support, a ball head, a front wheel connecting bolt, a hexagon bolt and a steering column. The rear disc type steering mechanism is compact in structure and reasonable in arrangement, the overall arrangement space is reduced, the driving space of a driver is increased, and the driving comfort and pleasure are further improved; all the parts are arranged in the cab, the sealing performance of the whole vehicle is improved, the installation efficiency of the whole vehicle is improved, and the device is suitable for being further popularized and used in large and small vehicle factories.

The invention relates to the field of soil pollution remediation, and discloses a micro-ecological reconstruction and remediation method for micro-plastic polluted soil, which comprises the following steps: firstly, screening and enriching micro-plastic degradation functional florae which have the advantages of pseudomonas and bacillus, and the bacillus can secrete lipase and protease; the preparation method comprises the following steps: mixing biomass charcoal prepared by pyrolysis of corn straws with a functional bacterium suspension for adsorption, and carrying out sodium alginate-calcium chloride crosslinking to prepare an immobilized composite repairing agent; applying a repairing agent accounting for 1-5% of the mass of the soil, uniformly mixing the repairing agent with the soil, regulating the soil humidity to 20-30% and the carbon-nitrogen ratio to (15-25): 1, and maintaining the environment temperature of 15-35 DEG C; microplastics are removed through the synergistic effect of biomass charcoal adsorption and functional flora enzymatic degradation, beneficial microorganisms are enriched synchronously, and functional gene expression is activated; the problems that in the prior art, functional flora planting is difficult, the degradation efficiency is low, micro-ecological restoration is deficient, and the environmental adaptability is poor are solved.

This utility model relates to the field of chip storage technology and discloses a semiconductor chip storage device that solves the problems mentioned in the background art. It includes a storage box with an opening, connecting ears on both sides of the opening, a fixed shaft between the connecting ears, a chip storage board sleeved on the fixed shaft, a chip storage slot on the chip storage board, a locking part with a locking buckle, and a locking slot on the storage box that matches the locking buckle. This utility model can efficiently store a large number of micro-semiconductor chips, facilitates quick chip access for users, solves the problems of difficult individual chip management and easy loss in traditional storage methods, and ensures that the chips are not physically damaged during storage.

The application relates to a kind of all-around three-dimensional stress testing device and method based on liquid pressure transmission principle, which includes liquid cavity pressure transmission module, involves the deformation induction and stress calculation of each local azimuth, and stress pressure sensing module, which involves the all-around azimuth stress integrated calculation of target measuring point.The liquid cavity pressure transmission module and stress pressure sensing module can make three-dimensional stress calculation cover to each azimuth stress, reduce the stress measurement error caused by the difference of particle size, the anisotropy of soil body and the interference of soil deformation.The improvement of stress testing precision significantly improves the actual data testing efficiency of test, and provides convenience for the fine processing and analysis of soil stress testing data.

The invention relates to a method for operating an air system (1), comprising:-at least one air supply path (2) for supplying air to at least one fuel cell stack (3); and-at least one exhaust gas path (4) for discharging the exhaust gas flowing out of the fuel cell stack (3), air fed to the at least one fuel cell stack (3) being wetted by means of the exhaust gas of the same fuel cell stack (2) or a further fuel cell stack (2), and wherein liquid water (5) contained in the exhaust gas is previously separated by means of a water separator (6). The invention further relates to an air system (1) and to a fuel cell system having an air system (1) according to the invention.

The utility model relates to the technical field of energy storage, in particular to a modularized lithium ion battery energy storage cabin which comprises a cabin body, a battery chamber and an equipment chamber are arranged in the cabin body, a partition plate is arranged between the battery chamber and the equipment chamber, and the battery chamber comprises a plurality of battery racks distributed in the length direction of the cabin body. Two groups of battery clusters can be placed on each battery rack along the height direction of the cabin body, each group of battery clusters comprises a plurality of battery modules, and all the battery clusters are equally divided into two sets of battery stacks; a high-voltage box guide rail for mounting a high-voltage box is arranged below each battery rack, and a high-voltage box cover plate is arranged between the battery rack and the high-voltage box guide rail of the high-voltage box; the equipment chamber is located on one side of the cabin body in the length direction, the side, located on the cabin body in the length direction, of the equipment chamber is open, and the equipment chamber is divided into a liquid cooling chamber and an electrical chamber in the width direction of the cabin body. The modular design of one rack with two clusters and one cabin with two stacks is adopted, the spatial layout is reasonable, and the expansibility, compatibility and environmental applicability are high.

The utility model relates to a road surface state monitoring system, which belongs to the technical field of monitoring equipment and comprises a protective shell, a monitoring mechanism, a control element and a power supply assembly for supplying power to the whole system are arranged in the protective shell, and two open holes are arranged at the front end of the protective shell. The monitoring mechanism comprises a first guide pipe, a second guide pipe, a first lens, a second lens, an infrared light source transmitting assembly and an infrared light source receiving assembly. According to the utility model, the infrared light source transmitting and receiving technology is adopted, so that the system can stably operate under different weather and illumination conditions, and the anti-interference capability is improved. By measuring the reflection and scattering conditions of infrared light on the road surface, the system can accurately sense the road surface state, and the problem of monitoring data distortion caused by human factors or environmental factors in a traditional method is avoided.

This utility model relates to a biliary particle tube implantation kit, including a particle tube implantation kit assembly and a particle tube. The particle tube is a hollow and transparent cylindrical tube with an opening at one end. The open end of the particle tube is coaxially connected to a connector with openings at both ends. A traction suture, which is an absorbable suture, is also installed on the outer wall of the particle tube. This utility model facilitates the rapid assembly of the particle tube and allows for easy integration with a self-expanding metal stent. During surgery, the particle tube and the self-expanding metal stent can be accurately, efficiently, and safely implanted into the predetermined position within the biliary tract.

The invention relates to the technical field of skin care essential oil preparation, and discloses waxberry kernel flavone-based skin care essential oil for delaying cell aging and removing acnes, which is prepared from 89% of waxberry kernel flavone extract, 5% of ganoderma lucidum polysaccharide extract, 2% of penetration enhancer, 0.5% of hyaluronic acid, 3% of lecithin and 0.5% of preservative phenoxyethanol. According to the skincare essential oil for delaying cell aging and removing acnes based on waxberry kernel flavone, impurities are removed and the waxberry kernel flavone is extracted through a supercritical carbon dioxide extraction method, the efficient and selective extraction process is achieved, the extraction rate of flavonoid compounds is increased, it is guaranteed that the biological activity of the flavonoid compounds is not damaged, and the skincare essential oil is suitable for being used as a skincare essential oil for delaying cell aging and removing acnes. According to the ganoderma lucidum polysaccharide powder and the preparation method thereof, a high-quality base material is provided for preparation of subsequent skin care products, a high-purity ganoderma lucidum polysaccharide extract is obtained through the steps of drying, smashing, hot water extraction, centrifugal separation, ethanol precipitation, dialysis freeze drying and the like on ganoderma lucidum sporocarp, and the finally obtained ganoderma lucidum polysaccharide powder finished product has extremely high purity and stability.

The utility model discloses a packaging structure of a high-stability laser, and relates to the technical field of lasers, and the packaging structure of the high-stability laser comprises a housing which is provided with an accommodating cavity with an opening; the chip assembly is arranged in the accommodating cavity; the cover body is fixed at the opening to seal the accommodating cavity; the first heat dissipation piece is fixed to the cover body, one end of the first heat dissipation piece abuts against the top of the chip assembly, and the other end of the first heat dissipation piece penetrates through the cover body and extends out of the containing cavity. According to the technical scheme provided by the utility model, the stability of the laser is improved.

A semiconductor device includes a substrate, a first gallium nitride type high electron mobility transistor, a second gallium nitride type high electron mobility transistor, a first inner connector, and a second inner connector. The substrate includes a first type doped semiconductor region and a second type doped semiconductor region. The first gallium nitride type high electron mobility transistor covers a first region on the first type doped semiconductor region and the second type doped semiconductor region. The second gallium nitride type high electron mobility transistor covers a second region on the first type doped semiconductor region and the second type doped semiconductor region. The first region and the second region are separated from each other. The first inner connector connects the first region, and a width of the first inner connector is greater than a source-drain pitch of the first gallium nitride type high electron mobility transistor. The second inner connector connects the second region, and a width of the second inner connector is greater than a source-drain pitch of the second gallium nitride type high electron mobility transistor.

The utility model relates to the technical field of liquid level meters, and discloses an anti-explosion and anti-corrosion radar liquid level meter applied to chemical industry. A protective shell is arranged on the outer side surface of a bolt, a groove is formed in one end of the outer side of the protective shell, a top plate is fixedly connected to the upper end of the protective shell, and a rotating plate is rotationally connected to the interior of a through hole formed in the upper surface of the top plate; installation and maintenance are convenient and fast; the protective shell structure adopts a threaded pressing plate structure and can be conveniently connected to the radar liquid level meter body, so that the mounting process can be simplified, the mounting time can be shortened, and the mounting reliability can be improved; the protective shell structure has the anti-explosion and anti-corrosion characteristics, can protect the radar liquid level meter from being influenced by the external environment, and can provide an effective physical barrier to prevent the liquid level meter from being corroded by moisture, corrosive media and the like. By additionally arranging the protective shell structure which is easy and convenient to install, the installation difficulty and risk of the radar liquid level meter can be reduced, and the safety and convenience of operators are improved.

This utility model relates to the technical field of waste incineration environmental protection devices, and discloses a waste incineration fly ash flue gas treatment system, including an oxygen-enriched side-blowing module, a primary denitrification module, a dioxin control module, a desulfurization module, and a secondary denitrification and whitening emission module arranged in sequence. The entire equipment revolves around the treatment of waste fly ash flue gas containing high chlorine. Through smelting and resource recovery, and then through multi-stage flue gas purification, pollutants are discharged in compliance with standards. The various modules and devices work together to achieve the dual goals of resource recovery and environmental protection.

The utility model belongs to farmland drainage technical field, concretely relates to a overflow drainage channel of high standard farmland, including the drainage channel of setting between plots, one side inner wall fixed mounting of drainage channel has first rotation axis, the other side inner wall swing joint of drainage channel has second rotation axis, and second rotation axis penetrates the other side wall of drainage channel, and it is installed between first rotation axis and second rotation axis to have cylinder, one side wall of cylinder is set on first rotation axis, and the other side wall of cylinder is fixedly connected with second rotation axis, and a plurality of filter devices are equipped in cylinder, and a plurality of impurity removal subassemblies are installed on the surface of cylinder. The utility model can quickly, safely drain excess water in field, prevent farmland waterlogging, ensure that high standard farmland can realize drought and flood and ensure yield, and high yield and stable yield.

The utility model relates to the technical field of radiators, in particular to a novel radiator with a needle-column-shaped fin high-density arrangement structure, which comprises a substrate, the substrate is provided with at least one heat source contact surface, mounting holes are arranged at corners of the heat source contact surface so as to facilitate fixation, and a plurality of needle-column-shaped fins are arranged on the non-contact surface side of the substrate in a high-density vertical array mode. The cross section of the substrate is polygonal or circular, turbulent flow grooves (preferably V-shaped grooves or trapezoidal grooves) are formed in the top of the substrate so as to increase air turbulence and improve the heat dissipation effect, the projection area of the needle-column-shaped fins accounts for 70%-95% of the total area of the non-contact face of the substrate, the space is utilized to the maximum extent, the needle-column-shaped fins are made of copper alloy, aluminum alloy or metal matrix composite materials, and therefore the heat dissipation efficiency is improved. And the surface of the needle-column-shaped fin is covered with the nano oxide layer, so that the heat-conducting property and the corrosion resistance are enhanced, the needle-column-shaped fin can be arranged in a staggered array or hexagonal close packing manner, and the airflow path is optimized.

This invention discloses a regenerative energy harvesting system based on oscillating dual-series blunt body vortex-induced vibration, comprising a serial dual-blunt body vortex-induced vibration device 1, a speed-increasing gear set 2, and a generator system 3. The serial dual-blunt body vortex-induced vibration device 1 has two blunt bodies arranged in series and vertically along the ocean current flow direction, and telescopic swing arms 1-3 at both ends of them. The upstream blunt body has inner and outer layers, with the inner layer being a transmission shaft 1-1-1 and the outer layer being an upstream blunt body shell 1-1; the downstream blunt body is a downstream blunt body shell 1-2. The transmission shaft 1-1-1 and the downstream blunt body shell 1-2 are connected at their upper and lower ends by telescopic upper swing arm 1-3-2 and telescopic lower swing arm 1-3-1, respectively. The speed-increasing gear set 2 and the generator system 3 are arranged sequentially above the transmission shaft 1-1-1 and coaxially with it. This invention avoids the problems of self-locking and high friction that may exist in the linear vibration of a single object, reduces the impact of the water flow environment on the power generation system, and meets the requirements of high environmental adaptability.

The invention relates to a full-attaching type machine tool protection device, and belongs to the field of machine tools. The invention aims to solve the problem that in the prior art, a machine tool cannot be fully sealed in the axial movement and radial movement processes. The key components of the device comprise a door opening air cylinder, a protective door, a workbench, a damping buffering mechanism, a dustproof ring, a telescopic organ cover, a fixed end and a movable end. The protective door is controlled to be opened and closed through the door opening air cylinder, and the workbench is tightly attached to the damping buffering mechanism when axially moving and radially moving, so that full sealing is achieved. The dustproof ring is installed at the moving end and matched with the outer ring of the workbench, and independence of a machining area is guaranteed. The telescopic organ cover is connected with the fixed end and the moving end to form a complete protection structure. The device is simple in structure and convenient to install and maintain, the cost is reduced, and the device has wide industrial application potential.

The thermoelectric device according to an embodiment of the present invention includes: a fluid inflow portion including a surface and a reverse surface spaced apart from the surface in a first direction; a first thermoelectric element disposed on the surface of the fluid inflow portion; a second thermoelectric element disposed on the reverse surface of the fluid inflow portion; a first shielding member disposed on the first thermoelectric element; and a second shielding member disposed on the second thermoelectric element, wherein the first shielding member and the second shielding member each include a connecting hole, and the connecting hole of the first shielding member and the connecting hole of the second shielding member are offset from each other in the first direction.

The utility model provides aluminum material packaging equipment, which relates to the technical field of aluminum material packaging and comprises a transverse packaging mechanism, a longitudinal packaging mechanism is fixedly connected to one side of the outer wall of the transverse packaging mechanism, the transverse packaging mechanism comprises a workbench, and two fixing plates are fixedly connected to the top, close to the edge, of the workbench. And two groups of holes are formed in one side of the outer wall of each fixing plate. According to the transverse packaging mechanism, the sliding rail is arranged at the bottom of the shell and connected with the sliding block in the sliding mode, the sliding block can move in a surrounding mode along the track of the sliding rail, the winding film roll shaft for winding a film is arranged at the bottom of the sliding block, and the transverse packaging mechanism wraps the two ends of an aluminum product through the connecting mode; the aluminum material packaging effect is more comprehensive, aluminum materials are prevented from being affected by the external environment in the storage and transportation process, the service life of the aluminum materials is prolonged, and the overall attractiveness of aluminum material packaging is enhanced.

The utility model relates to the technical field of shock absorption and noise reduction mechanisms, in particular to an excavator with a shock absorption and noise reduction mechanism, a cab shell is mounted on the rear side of the upper portion of an excavator body, a base is mounted in the middle of the upper portion of the excavator body, a shock absorption damping rod is hinged to the upper portion of the base, and a movable seat is hinged to the upper portion of the shock absorption damping rod. A rubber sleeve is mounted on the lower side of the periphery of the movable seat; the excavator has the beneficial effects that when an excavator body works, vibration can be transmitted to a cab, the vibration is transmitted to the damping rods through the base, the vibration amplitude and frequency are preliminarily weakened through stretching and retracting of the multiple sets of damping rods, and the rubber sleeves protect the internal damping rods against external influences; the movable seat and the connecting seat are connected through the air bag, the air bag can well absorb vibration, the spring rod limits the movement range of the connecting seat under the influence of vibration, and when the connecting seat collides with the movable seat under the influence of vibration, the rubber pad can effectively absorb vibration and reduce noise.

This utility model discloses a panel-separating fixture for inspecting the flatness of a product, belonging to the technical field of panel-separating fixtures. The inspection operating table is symmetrically equipped with slide rails, and a sliding plate is slidably mounted on the slide rails. An inspection panel is mounted on the sliding plate, and a red light inspection sensor is installed on the inner side of each inspection panel. A drive assembly is mounted on the slide rails of the inspection operating table, and a support scanning assembly is also mounted on the inspection operating table. The drive assembly includes a micro-drive component, a take-up and release wheel, a pull rope, and a pull groove. Micro-drive components are mounted at both ends of the slide rails, and a take-up and release wheel is mounted at the output end of each micro-drive component. A pull rope is wound around the take-up and release wheel, and the outer end of the pull rope is connected to the sliding plate for pulling. A pull groove is provided on the slide rails, meaning that the red light inspection sensors on the two supports are arranged opposite each other, enabling the emission of detection light from both sides above the product to achieve comprehensive inspection of the product's flatness.

The invention provides a motor control method and device, a vehicle and a storage medium, and relates to the technical field of vehicles. The method comprises the following steps: when a relay used for connecting a power battery and an inverter in the electric driving system is disconnected, performing first preset control on a motor through the inverter according to an operation mode and operation parameters of the motor in the electric driving system; when it is detected that the relay is disconnected, the current operation mode and operation parameters of the motor in the electric drive system are obtained, corresponding first preset control is carried out on operation of the motor according to the current operation mode and operation parameters of the motor, the operation state of the motor after the relay is disconnected can be effectively managed, and the operation efficiency of the motor is improved. Therefore, serious over-voltage, over-current, under-voltage and the like in a loop separated from the power battery are avoided, torque impact caused by unstable torque output of the motor is avoided, and an electric drive system where the motor is located is protected under the fault working condition such as load throwing.

This utility model discloses an airport lighting cable, comprising a conductor one and a conductor two. The conductor one and conductor two are twisted together, and the outer walls of both conductor one and conductor two are respectively covered with an insulation layer one. A metal layer is disposed on the outer wall of the insulation layer one, and an insulation layer two is disposed on the outer wall of the metal layer. The insulation layer two and the metal layer are connected by a covering process. This utility model relates to the field of airport lighting cable technology. This airport lighting cable, through the arrangement of conductor one, conductor two, insulation layer one, metal layer, insulation layer two, shielding layer, filling layer, and protective layer, improves conductivity. The use of high-purity copper or aluminum as conductors and the application of a multi-strand twisted conductor structure enhance the cable's conductivity and current carrying capacity, reduce power loss, ensure a stable power supply for airport lighting equipment, guarantee the normal operation of the lighting system, and enhance anti-interference capabilities.