41results about How to "In line with the development trend of lightweight" patented technology

The present invention discloses a decorative bubble panel used in vehicles, in particular to a bubble panel for a canopy of inner decoration, which is characterized in that the bubble panel is produced by a froth technology of the following weight percentage of materials: a mixture of polyether polyol and polyester polyol which comprises 40-60 percent of polyether polyol, 0.8-1 percent of bubble stabilizer should be added, material A comprises 3-5 percent of water and 0.08-0.1 percent of amine activator, mixed with isocyanate(material B) to create a combined material, with a froth proportion of A:B=1:1.3-1.5, be frothed to form a bubble panel for a canopy of inner decoration; the production is characterized in even density, good structure of bubble holes and high pressure resistance, washing out ODS completely, stopping the destruction of the ozonosphere of the atmosphere radically.

An automobile airbag shell structure is composed of a metal framework, a fabric tape net, a bracket and a U-shaped steel wire, wherein the fabric tape net is formed by weaving fabric tapes. The fabric tape tail end located on the inner side of the fabric tape net is provided with circular collars. The fabric tape tail end located on the outer side of the fabric tape net is provided with angular hanging rings. The U-shaped steel wire penetrates through all the collars on the inner side of the fabric tape net and then is fixed on the inner side of the bracket. The periphery of the metal framework is provided with hooks corresponding to all the fabric tapes. The hanging rings on the outer side of the fabric tape net penetrate through the metal framework and then are hung on the hooks on the periphery of the metal framework. The netty structure is formed by sewing the fabric tapes, one end of the netty structure is hung on the metal framework, the other end of the netty structure is fixed on the bracket through the U-shaped steel wire, and therefore a hollow netty container structure is formed. The automobile airbag shell structure is high in rigidity, low in cost and light in weight, thereby being in accordance with the light weight development trend of automobiles.

The invention discloses a method for driving multiple driving sources through one power source. The power output end of the power source drives the power input end of each driving source to act. Power transmission between the power input end and the power output end of each driving source is controlled through a clutch. If a certain driving source needs to output power, the clutch of the driving source is switched on, and power is transmitted to the power output end of the driving source to be output from the power input end of the driving source. If a certain driving source does not need to output power, the clutch of the driving source is switched off, the power input end of the driving source idly acts, and no power is transmitted to the power output end of the driving source from the power input end of the driving source. The invention further discloses a mechanism for driving the multiple driving sources through one power source. All the driving sources can be independently controlled, no interference is generated between the power output ends, transmission 1:1 output can be achieved, or output of different transmission ratios can be achieved.

The invention discloses a PVOH coating film with high peel strength. The PVOH coating film comprises a base material layer and a coating layer which are adhered in sequence; the coating layer is a self-adhesive PVOH coating layer, and the base material layer is a BOPP film layer with a heat sealing function. The invention provides the novel BOPP self-adhesive PVOH emulsion coating film with heat sealing performance. The BOPP self-adhesive PVOH emulsion coating film has an important characteristic that the adhesive force of a BOPP heat sealing surface with a PVOH coating layer is much better than that of a BOPP light film with the PVOH coating layer. The peel strength of the heat-seal BOPP and the coating PVOH coating layer is larger than or equal to 1.2 N / 15 cm, while the peel strength ofthe BOPP light film and the coating PVOH coating layer is smaller than or equal to 0.6 N / 15 cm. And the improvement of the peel strength provides greater possibility for the application of the material. For example, printing of a coating layer, compounding of the coating layer and other materials and the like are achieved. The invention provides the novel PVOH coating film which is provided with two functional layers, the outer layer is a biaxially drawn polypropylene layer and can provide good mechanical properties, and the inner layer is the PVOH coating layer and can provide good barrier properties and also has good printing and other material compounding characteristics.

The invention relates to a reserve type lithium battery which comprises a shell, an electric core and electrolyte, wherein the electric core and the electrolyte are positioned in the shell; and the reserve type lithium battery also comprises a valve which is fixed in the shell and used for isolating the electric core from the electrolyte. The electrolyte breaks through the valve and soaks the electric core at preset acceleration. The reserve type lithium battery of the invention has simple and compact structure and simple and easy manufacture process. The valve is directly fixed on the shell and occupies less internal space of the battery, and battery capacity is basically free from influence; and the invention is convenient to improve battery design capacity and shorten battery integral volume and meets the miniaturized and light-weight development tendency of the traditional battery. The battery can be in a shape of column, square, coin, button, and the like, and the reserve type lithium battery can be used as a single fuse and various ammunition fuses.

The invention relates to the field of rubber, and discloses a rubber composition, vulcanized rubber, and preparation methods and applications thereof, wherein the composition contains a rubber matrix,an interface modifier, lignin, a plasticizing dispersant, an activator, an anti-aging agent, a softener, a vulcanizing agent and an accelerator, and optionally contains carbon black; wherein the interface modifier is a polymer containing a maleic anhydride grafted diene structural unit, and the rubber matrix contains a mixture of butadiene rubber and natural rubber. The rubber composition provided by the invention has the advantages of high strength, low rolling resistance and good dynamic flexibility, and vulcanized rubber formed by the composition can be used for tire sidewalls.

The invention discloses a telescopic wing mechanism suitable for a small unmanned aerial vehicle. The telescopic wing mechanism is formed by nesting an inner wing and an outer wing, and the length of the wings is adjusted in a manner that the inner wing is fixed relative to the fuselage of the unmanned aerial vehicle and the outer wing slides relative to the inner wing. When the telescopic wing works, the steering engine of the inner side wing drives the ball screw to move, so that the screw nut moves along the preset guide rail, the moving process of the outer side wing relative to the inner side wing is completed, and the length of the wing is adjusted. A ball screw transmission mode is adopted, and the problem that the wing length of the unmanned aerial vehicle cannot be adjusted according to flight requirements when the unmanned aerial vehicle flies is solved.

The invention discloses a rotation lock structure used for a car seat. The car seat includes a lazyback and a cushion. The lazyback and the cushion are connected with each other through a rotation lock in a rotation mode. The rotation lock structure includes a lock pulling mechanism, a lower supporting frame plate, an upper supporting plate and a rotation lock body. The lower supporting frame plate is connected with the cushion. The upper supporting plate is connected with the lazyback, wherein, the rotation lock body includes a cover plate, a guiding plate, a pulling rod, a locking plate, a spring and a tooth plate. The rotation lock structure used for the car seat has the following advantages that (1), the rotation lock structure is only provided with twelve components; compared with a normal lock assembly structure, five parts are omitted; and in the situation that it is ensured that the strength is not changed, the weight is greatly reduced, the cost is reduced, and the rotation lock structure is in line with the current seat lightweight development trend; (2), assembly can be completed only through one riveting and four welding, and assembly is simple and convenient; and (3),a semi-closed structure is used, and the risk that foreign matters enter the mechanism resulting in unlocking is reduced.

The invention discloses a pulley connecting structure used for a guide rail elevator and the guide rail elevator comprising the pulley connecting structure. The pulley connecting structure comprises an upper guide rail, a cylindrical boss assembly, a metal ring, a pulley and a self-tapping screw A. The cylindrical boss assembly is fixed to the top of the upper guide rail and comprises a boss baseand a cylindrical boss fixed to the center of the boss base. A plurality of supporting ribs which are arranged around the cylindrical boss are fixed to the boss base of the cylindrical boss assembly.The cylindrical boss of the cylindrical boss assembly is sleeved with the metal ring. The pulley is arranged outside the metal ring in a running fit mode. A screw hole A is formed in the cylindrical boss of the cylindrical boss assembly. The self-tapping screw A is mounted in the screw hole A in the cylindrical boss. The pulley is mounted outside the metal ring in a limited mode through the self-tapping screw. The pulley connecting structure used for the guide rail elevator and the guide rail elevator comprising the pulley connecting structure have the advantages that the structure is simple,the number of part is small, and installation is convenient and fast; and the weight of the pulley connecting structure is effectively reduced, and the pulley connecting structure is in conformity with the lightweight development tendency of automobile.

The embodiment of the invention discloses a three-valued neural network weight processing method and device in embedded equipment. The method comprises the following steps: loading a neural network model to embedded equipment; grouping the original ternary network weight data in the neural network model, carrying out bitwise AND operation on the grouped weight data to obtain a low 2-bit weight data of each weight data, carrying out leftward shift according to the sequence of the weight data, and carrying out bitwise OR operation on the leftward shifted weight data to obtain compressed weight data; performing memory space development according to the storage space required by the single-layer weight data of the neural network model, performing bitwise and operation on the compressed weightdata corresponding to the single-layer weight data before the single-layer weight data is operated, and performing right shift on the bitwise and operated compressed weight data to obtain original ternary network weight data. And on the premise of ensuring the accuracy and speed of neural network operation, the problem that the three-valued neural network model occupies a relatively large memory space on embedded equipment is solved.

The application relates to the field of polymer materials, and specifically discloses a flame-retardant nylon material used for battery pack casings and a preparation method thereof. The flame-retardant nylon material used for the battery pack shell includes the following components by weight: 50-70 parts of nylon resin, 8-15 parts of red phosphorus masterbatch coated with microcapsules, 25-35 parts of chopped glass fiber, anhydrous boric acid 1-3 parts of zinc, 1-3 parts of zinc oxide, 2-5 parts of maleic anhydride grafted ethylene-octene copolymer, 1-3 parts of aniline black masterbatch, 1-3 parts of hydrotalcite, and 0.1-1 parts of antioxidant part, 0.1-1 part of lubricant; its preparation method is: S1, weighing raw materials; S2, mixing; S3, extruding. The flame-retardant nylon material used for the battery pack casing of the present application has excellent flame retardancy, toughness and strength, light weight and good corrosion resistance.

The invention relates to the field of rubber, and discloses a coordination modifier-containing rubber composition, vulcanized rubber, a preparation method and applications thereof, wherein the rubbercomposition contains a rubber matrix, a rubber modifier, lignin, a coordination modifier, an activator, an anti-aging agent, a softener, a vulcanizing agent and an accelerator, and optionally containscarbon black; wherein the rubber modifier is a sulfydryl polyethylene glycol derivative containing a metal ligand structure, the coordination modifier is a metal salt, and the rubber matrix containsbutadiene rubber and natural rubber. The rubber composition has the advantages of high strength, low rolling resistance and good dynamic flexibility, and vulcanized rubber formed by the composition can be used for tire sidewalls.

The invention relates to the field of high polymer materials, and particularly discloses a flame-retardant nylon material for a battery pack shell and a preparation method of the flame-retardant nylon material. The flame-retardant nylon material for the battery pack shell comprises the following components in parts by weight: 50 to 70 parts of nylon resin, 8 to 15 parts of microcapsule coated red phosphorus master batch, 25 to 35 parts of chopped glass fibers, 1 to 3 parts of anhydrous zinc borate, 1 to 3 parts of zinc oxide, 2 to 5 parts of maleic anhydride grafted ethylene-octylene copolymer, 1 to 3 parts of aniline black color master batch, 1 to 3 parts of hydrotalcite, 0.1 to 1 part of an antioxidant and 0.1 to 1 part of a lubricant. The preparation method comprises the following steps: S1, weighing the above raw materials; S2, conducting mixing; and S3, performing extruding. The flame-retardant nylon material for the battery pack shell has the advantages of excellent flame retardance, toughness and strength, light weight and good corrosion resistance.

The invention discloses an automobile carpet sound insulation pad and a forming method thereof.The automobile carpet sound insulation pad comprises a PET sound insulation pad body, the PET sound insulation pad body comprises bonding structures formed by curing high-melting-point PET fibers and low-melting-point PET fibers after high-temperature melting, and the bonding structures are dispersed inthe high-melting-point PET fibers. The forming method of the automotive carpet sound insulation pad comprises the following steps: 1) opening high-melting-point PET fibers and low-melting-point PET fibers respectively; 2) mixing the two PET fibers; 3) preparing the mixed fiber into a blank; (4) transferring the blank into a steam mold, melting the low-melting-point PET fibers and then bonding intothe high-melting-point PET fibers, and therefore a sound insulation pad prototype is formed; 5) transferring the prototype of the sound insulation pad into a correction die for correction and shaping; and 6) transferring the sound insulation pad after correction and shaping onto a punching die for punching. According to the present invention, the automobile sound insulation pad is directly moldedfrom the PET fiber material, such that the use amount of the raw materials is low, the production cost is reduced, the density of each region is uniform, and the sound absorption and sound insulationperformances are good.

The invention discloses a high-shading polypropylene composition and a preparation method thereof. The polypropylene composition is prepared from the following components in parts by mass: 60-80 parts of medium-flowability polypropylene, 10-20 parts of high-flowability polypropylene, 3-5 parts of surface modified nano titanium dioxide, 2-5 parts of surface modified nano barium sulfate, 0.2-0.5 part of a dispersing agent, 5-10 parts of a toughening agent and 0.5 part of an antioxidant. Compared with the traditional titanium dioxide filled modified polypropylene, the polypropylene composition provided by the invention has the advantages that the addition amount of the surface modified nano titanium dioxide and the surface modified nano barium sulfate is small, the material density is small, and the polypropylene composition is more in line with the development trend of light weight of automobiles; under the action of the high-fluidity polypropylene, the mechanical property and the surface gloss of the material are obviously improved, and the comprehensive performance is excellent; in addition, under the combined action of the surface modified nano titanium dioxide and the surface modified nano barium sulfate, the material has a better shading effect.

An automobile airbag support ring structure, which is composed of a dome, a wall around the dome and a base plate, the dome, the wall and the base plate are integrated and the material is an injection molded part made of plastic material, and the dome There are many round holes on the top, special-shaped holes at the four corners of the round vault, and screw holes at the four corners of the bottom plate. The gas generator can improve the inflation performance of the air bag, prevent the air bag from being burned, and has low cost and light weight, and conforms to the development trend of lightweight automobiles.

The invention relates to the field of chemical engineering, and specifically discloses a rare earth metal alkyl sulfide nanomaterial, the alkyl group (R1, R2) contained in the nanomaterial structure can improve the compatibility of the nanomaterial with an organic polymer, ‑Si ‑OH can condense with inorganic fillers (such as white carbon black) with hydroxyl groups on the surface to enhance its compatibility with inorganic fillers, and at the same time inhibit the agglomeration of small particles of inorganic fillers. The invention also provides a preparation method of the nanometer material, which is obtained by reacting a soluble rare earth metal compound and a sulfur compound, and has simple process, readily available raw materials, low energy consumption and good repeatability.

The invention aims to solve the problems that due to the fact that a discrete polarization state controller is generally formed by cascading a plurality of discrete polarizing films, wave plates, electro-optical modulators and other polarized optical elements in an existing non-invasive blood glucose concentration detection device based on the Mueller matrix rotation method, the system size is large, control is complex, calibration needs to be carried out for many times and the cost is high, and the invention provides a high-integration portable polarization regulation blood glucose measuring device and method. The blood glucose measuring device comprises a light source module, a polarizer module, an analyzer module and a detector module; the light source module emits collimated parallel light and irradiates the polarizer module; the polarizer module regulates and controls the polarization state of incident light emitted by the light source module to generate a specific polarization state, the incident light enters a to-be-detected part of a human body, and after the light is reflected and passes through the polarization analyzer module, polarized light enters the detector module for polarization imaging and detection; the polarizer module and the polarization analyzer module use an integrated polarization state controller to conveniently regulate and control the polarization state of incident light.

The invention relates to the field of rubber, and discloses a rubber composition, a vulcanized rubber and a preparation method and application thereof. , softening agent, vulcanizing agent and accelerator, and optionally containing carbon black; wherein, the interface modifier is a polymer containing maleic anhydride grafted diene structural units, and the rubber matrix contains cis-butadiene rubber and natural rubber mixture. The rubber composition of the present invention has the advantages of high strength, low rolling resistance, good dynamic flexural flexibility, and the vulcanized rubber formed from the composition can be used for vehicle tire sidewalls.

The invention discloses a PVOH coating film with high peel strength, which comprises a substrate layer and a coating layer adhered in sequence; the coating layer is a self-adhesive PVOH coating layer, and the substrate layer is a heat-sealed BOPP film layer. The invention provides a new BOPP self-adhesive PVOH emulsion coating film with heat sealing performance, which has an important characteristic: the adhesion of BOPP heat cover and PVOH coating is higher than that of BOPP light film and PVOH coating. Much better focus. The peeling strength between heat-sealed BOPP and PVOH coating is ≥1.2N / 15cm, while the peeling strength between BOPP film and PVOH coating is ≤0.6N / 15cm. The improvement of its peel strength provides greater possibilities for the application of the material. For example, the printing of the coating layer, the compounding of the coating layer and other materials, etc. The invention provides a new PVOH coating film, which has two functional layers, the outer layer is a biaxially stretched polypropylene layer, which can provide good mechanical properties, and the inner layer is a PVOH coating, which can provide good barrier properties , but also has good printing and composite properties with other materials.

An automobile airbag shell structure, which is composed of a metal frame, a webbing net woven by webbing, a bracket and a "U"-shaped steel wire. The end of the webbing is provided with an angular hanging ring; the "U"-shaped steel wire is fixed on the inside of the bracket after passing through the loops inside the webbing net, and the hooks corresponding to each webbing are provided around the metal frame. The hanging ring passes through the inside of the metal frame and hangs on the hooks around the metal frame. The mesh structure is sewn with webbing, one end is hooked on the metal frame, and the other end is fixed on the bracket through a "U-shaped" steel wire to form a hollow mesh container structure, which has good rigidity, low cost, and light weight. The development trend of automobile lightweight.

An embodiment of the present application provides a bogie for a rail vehicle and the rail vehicle. The bogie, the wheel set, the wheel set includes the axle and two wheels, the axle is the axle of the hollow shaft structure; the two wheel set axle boxes and the two axle boxes use bearings, the inner rings of the axle boxes are fixed on the axle shaft and It is located between two wheels; the wheel-to-axlebox is sleeved on the outer ring of the bearing for the axlebox; the permanent magnet direct drive motor is set between the two wheel-to-axleboxes, and the permanent magnet direct-drive motor includes a motor casing and a rotor , the stator and two motor end covers, the two motor end covers are fixed at both ends of the motor shell, the motor end cover has an end cover shaft hole; the rotor is fixed on the outer peripheral surface of the axle to directly drive the axle, the stator and the motor shell are fixed It is integrated and sleeved on the outside of the rotor. The rail vehicle comprises the bogie described above. The embodiment of the present application solves the technical problems of the existing motor direct drive bogie with complex structure and high mass.

A supporting ring structure for an automobile safe airbag is composed of a circular arch top, a wall body placed at the periphery of the circular arch top and a bottom plate, wherein the circular arch top, the wall body and the bottom plate are integrated and an injection molding part is adopted and the material of the injection molding part is plastic rubber. A plurality of round holes are formed in the circular arch top. Irregular holes are respectively formed in four corners of the circular arch top. Screw holes are formed in four corners of the bottom plate. According to the supporting ring structure for the automobile safe airbag, an air inflation function, for the airbag, of an air generator can be improved and the airbag can be prevented from being burnt. The supporting ring structure for the automobile safe airbag is low in cost and light in weight and accords with the development tendency of weight reduction of automobiles.

The embodiment of the present application provides a motor end cover for a bogie, a bogie and a rail vehicle. The motor end cover has a through end cover shaft hole, and the end cover shaft hole is used for the axle of the bogie to pass through; the outer side of the motor end cover has a motor end cover flange, and the motor end cover is turned over There are bolt holes on the side of the motor end cover, and the bolt holes of the motor end cover are used to fix the wheel-to-axle box of the bogie; the inner side of the motor end cover is used to connect with the permanent magnet direct drive motor of the bogie The motor housing is fixed. The bogie includes the aforementioned motor end cover. The rail vehicle comprises the bogie described above. The embodiment of the present application provides to solve the technical problem that the existing motor direct-drive bogie needs to provide a separate support structure for the permanent magnet direct-drive motor, resulting in complex structure and high mass of the bogie.

The invention relates to a flexible heat dissipation hinge for folding electronic equipment. The flexible heat dissipation hinge comprises a flexible heat conduction band, a left fixing shaft, a rightfixing shaft, a shaft seat, a large cover plate and a small cover plate; the heat conduction band is composed of a wide band surface heat conduction section and a narrow band surface heat conductionsection; the two fixing shafts consist of shaft plates and end rings; a cavity is arranged in the shaft seat, shaft holes are formed in the two ends of the shaft seat, and a band penetrating hole is formed in the bottom of the shaft seat; the shaft seat penetrates through a shaft seat penetrating hole in the heat conduction band and is fixedly connected with the upper end of a folding electronic equipment host; plugboard parts on the two fixing shafts are respectively in plug-in fit with two sides of one end, close to a narrow band surface, of the wide band surface heat conduction section, andare fixedly connected with a screen front cover of the folding electronic equipment; the end rings of the two fixing shafts are respectively plug-in fit with shaft holes at two ends of the shaft seat; the wide band surface heat conduction section is in contact with the inner surface of a screen rear cover of the folding electronic equipment and is pressed on the screen rear cover through the large cover plate; and the narrow band surface heat conduction section is led out from the band penetrating hole, is in contact with the heat source surface of a circuit board and is pressed on the electronic equipment host through the small cover plate. According to the flexible heat dissipation hinge, the non-coplanar heat transfer requirement is met.

The method disclosed by the present invention uses one power source to drive multiple driving sources. The power output end of the power source drives the power input end of each driving source to act, and the power input end of each driving source and the power output end of the driving source The clutch is used to control the power transmission; if a driving source needs to output power, the clutch of the driving source is closed, and the power is transmitted from the power input end of the driving source to the power output end of the driving source; if a certain driving source does not When output power is required, the clutch of the drive source is disconnected, the power input end of the drive source is idle, and power is not transmitted from the power input end of the drive source to the power output end of the drive source. The invention also discloses a mechanism that uses one power source to drive multiple driving sources. Each drive source of the present invention can be controlled independently, and the power output ends will not interfere with each other, and can realize transmission 1:1 output, or output with different transmission ratios.