98results about How to "Lightweight reduction" patented technology

The invention relates to an extended range electromobile power system using a dual-clutch two-speed transmission. The extended range electromobile power system is characterized in that a crank shaft of an internal combustion engine is connected with a shell of a first dual-clutch transmission gear; a first clutch of the first dual-clutch transmission gear is connected with a shell of a second dual-clutch transmission gear through a transmission shaft; the second clutch of the first dual-clutch transmission gear is connected with a first motor rotor; a second motor rotor is connected with a shell of the second dual-clutch transmission gear through a transmission shaft; and two sets of change gears are respectively controlled to output power by controlling the disengagement or engagement of two clutches of the second dual-clutch transmission gear to realize two gears. The vehicle is mainly driven by a second motor during low-speed driving, the low-speed and low-load operation of an engine is avoided, and the economical efficiency and emission of the whole vehicle are improved; during high-speed driving, the power system operates in parallel to drive the vehicle, the energy transmission efficiency is high, and the driving range of the vehicle is further extended on the basis of ensuring the dynamic property of the whole vehicle.

Disclosed is a small-sized switched reluctance motor converter system. The system is composed of four alternating main circuits in two sets, an output circuit, a first subsidiary circuit and a secondsubsidiary circuit; the four main circuits alternately output direct current to the output circuit for direct rectify output, and the inversion link is omitted; the first subsidiary circuit can work in both directions, has the three main functions of charging a storage battery, strengthening the excitation and feeding energy backwards, and is flexible and adjustable; the second subsidiary circuitassists in achieving the three main functions and can achieve short-time double-fed power generation control work; a converter can be completely adopted as a motor during running; the system is simplein structure, diversified in function and suitable for complex four-quadrant running fields of small-sized speed-variable wind power, water pumping and energy storage power station integrated motor systems, integration micro-power grids and the like.

The invention relates to an extended-range electric automobile power system adopting a planetary transmission. The extended-range electric automobile power system adopting the planetary transmission is characterized in that a bent axle of a combustion engine is connected with a shell of a dual-clutch transmission gear; a first clutch of the dual-clutch transmission gear is connected with a planetary gear mechanism through a transmission shaft; a second clutch is connected with a first motor rotor; a second motor rotor can be connected with any one of the three elements such as a sun wheel, a planet carrier and a gear ring of the planetary gear mechanism, and a set second element outputs power; a movement state of a third element is controlled to achieve two gears; a second motor drives the vehicle when running at a low speed; low-speed and low-load work of the engine is avoided; economical efficiency and an emission performance of the entire vehicle are improved; the power system works in parallel to drive the vehicle when running at a high speed; energy transfer efficiency is high, a driving range of the vehicle is further extended on the basis of ensuring a dynamic performance of the entire vehicle.

The invention provides an automatic transmission. Due to reasonable layout, the automatic transmission can be provided with six forward gears and one reverse gear by controlling two brakes and three clutches. Only the two brakes are used by directly fixing a third sun gear on a box body, and therefore, on one hand, the structure of the automatic transmission is more compact, and on the other hand, the impact of the brakes to the box body in a gear shifting process is reduced, and the loaded condition of the box body is improved. Relatively speaking, the amount of the brakes is reduced, the amount of the clutches is increased, and therefore, on one hand, the automatic transmission can be more compact by nesting layout, and on the other hand, the utilization ratio of the clutches can be increased, an idle transfer line is disconnected or shortened, furthermore, the drag torque of an idle planet row is reduced, the churning loss of a belt row is reduced, and the transmission efficiency is increased.

The invention discloses a power system of an extended-range type electric vehicle adopting a combination of a double clutch and planetary gears. The power system comprises an internal combustion engine, a planetary gear system, a first motor, a second motor and the double clutch. The planetary gear system comprises a planetary carrier, the planetary gears, a gear ring and a sun wheel. An output shaft of the internal combustion engine is connected with the planetary carrier. A rotor of the first motor is connected with the gear ring. The sun wheel is connected with one end of a transmission shaft, and the other end of the transmission shaft is connected with an input disc of the double clutch. A rotor of the second motor is connected with the input disc of the double clutch. The output end of a first clutch part of the double clutch is provided with a first driving gear, and the output end of a second clutch part of the double clutch is provided with a second driving gear. The first driving gear is meshed with a first driven gear. The second driving gear is meshed with a second driven gear. The first driven gear and the second driven gear are arranged on a power output shaft.

The invention provides a satellite power controller. The controller is used for tracking the peak power of N photovoltaic cell arrays which are in parallel connection. The controller comprises N output diodes, a first switch S1, a second switch S2, a third switch S3, a second diode D2, a third diode D3, an output capacitor C1, an output capacitor Co, an inductor L1, an input voltage sensor, an input current sensor, an output voltage sensor and a control unit. The satellite power controller combines the S3R sequential switch shunting regulation and MPPT maximum power point tracking control for enhancing the satellite power system peak power tracking efficiency and reliability, thus obtaining a satellite platform with high power, high efficiency and high reliability.

The invention discloses a full-automatic parking device of an electric-wheel automobile. The full-automatic parking device comprises wheels, wheel hub motors, lock pin driving mechanisms and a vehicle controller. The wheels are connected to an automobile body by adoption of independent suspension frames. The wheel hub motors are mounted in the wheels and used for driving the wheels to independently rotate. The lock pin driving mechanisms utilize lock pin driving motors to be inserted into or exit out of lock pins at center-line through holes of rear shaft steering transverse pull rods selectively and are used for locking or unlocking the rear shaft steering function. The vehicle controller controls the lock pin driving motors to work, receives all sensor signals and formulates a parking strategy according to the signals so as to control the wheel hub motors to rotate. The parking algorithm is higher in automation degree, under the premise that safety is ensured, the needed space for parking is reduced, and convenience is improved; and certain application prospects are also achieved in traditional automobiles.

The invention discloses an expanded graphite (EG) / polyimide (PI) composite bipolar plate and a preparation method thereof; the expanded graphite / polyimide composite bipolar plate is prepared from, by weight, 30-70% of EG and 30-70% of PI by means of dry mixing process and compression molding process, wherein EG is a main conductive filling material and PI is an adhesive; compared with metal bipolar plates, the bipolar plate has the excellent advantages, such as low density, low cost, corrosion resistance and light weight, the forming process is simple, processing is easy, the process is environment-friendly and energy-efficient, and planar conductivity and bending strength of the bipolar plate may reach 175.25 S per cm<-1> and 68.54 MPa respectively, with significant charge effect.

The embodiment of the invention provides a microstrip radiation unit and an array antenna. The microstrip radiation unit comprises a dielectric substrate, a radiation circuit and a feeding circuit, wherein the dielectric substrate is integrally formed by injection molding and comprises a top part, a support part and a welding part, the support part is connected with the top and the welding part, the radiation circuit is arranged on an upper surface of the top part, and the feeding circuit is arranged on a lower surface of the top part and extends to the welding part along the support part. With the microstrip radiation unit and the array antenna, provided by the embodiment of the invention, integration of the radiation unit is achieved, the structure is simple, no assembly is needed, the reliability and the consistency of the radiation unit are improved, and the microstrip radiation unit and the array antenna are more suitable for manufacturing on a large scale. Moreover, the microstrip radiation unit has favorable low profile characteristic, the height of the radiation unit is effectively reduced, the weight of the radiation unit is further reduced, and the lightness of the radiation unit is achieved.

The invention discloses a device for testing tension of a test piece, and relates to a device used for the tension of the test piece. In order to solve the problems that the existing tension testing machine is complicated in structure, large in occupied area, high in cost, inconvenient to used in a manner of being matched with an optical measurement system, and poor in adaptability. The device for testing the tension of the test piece comprises a base, two sets of chuck components, two pretensioners and two top plates, wherein each set of chuck component comprises a chuck seat, a cover plate and a plurality of cushion plates; a groove is formed in the chuck seat; a threaded hole communicated with the groove is formed in the side wall of the chuck seat; the axial direction of the threaded hole is identical to the length direction of a test piece to be tensioned; the cover plate covers the upper surfaces of the cushion plates and is detachably connected with the chuck seat; the two top plates are arranged on the base in a face-to-face manner; the two sets of chuck seats are arranged on the base between the two top plates; the opening ends of the grooves in the side walls of the two sets of chuck seats are arranged in the face-to-face manner; and one end of each pretensioner is in threaded connection with the corresponding threaded hole. The device for testing the tension of the test piece is used in the fields of materials science, mechanics or optics.

The invention provides an image reading apparatus and an image scanning apparatus. In the image scanning apparatus, when documents on a document tray are sequentially transferred, different control steps are performed according to a scanning speed when an upper surface height of the documents is lowered thereby turning off a height detection sensor. In a low scanning speed, the document tray is elevated one time until the upper surface height becomes a target height which is higher by a predetermined distance since a height detection sensor is turned on at an inter-transfer time between completion of document transfer and start of a subsequent document transfer. In an intermediate scanning speed, the document tray is elevated little by little in each transfer of one document at the inter-transfer time until the upper surface height reaches the target height. In a fast scanning speed, the transfer of the document is tentatively interrupted, the document tray is elevated one time until the upper surface height reaches the target height, and the transfer of the document is resumed.

The invention relates to a lithium battery system capable of replacing a lead-acid electric vehicle battery system and a manufacturing method thereof. The lithium battery system comprises a battery pack shell, a battery module, a support, a battery management system (BMS) and electric parts, wherein the battery pack shell comprises an upper shell and a lower shell, and the upper shell and the lower shell are connected in a closable manner; the battery module is assembled and formed by connecting lithium batteries in a series-parallel manner, and is fixed to the lower battery pack shell through the support; the BMS is mounted on the support; and the electric parts are mounted at corresponding design positions of the battery pack shell. The manufacturing method comprises the following steps: (1) processing the battery pack shell and the internal support; (2) connecting the lithium batteries in the series-parallel manner to assemble and form the module by using connecting cables and connecting copper bars; (3) putting the module into the lower battery pack shell, and mounting the support to fix the module; (4) mounting the related electric parts at the design positions of the battery shell; (5) mounting the BMS on the support; and (6) closing the upper battery pack shell. Through the replacement scheme, the usage of lead-acid batteries can be reduced, and the risks of environmental pollution are reduced; the lithium batteries are used for replacing the lead-acid batteries, and a low-temperature charging heating system is added, so that the low-temperature discharge capacity and the low-temperature charge performance of the battery system are improved.

The invention discloses a special material for an UHMWPE (Ultrahigh molecular weight polyethylene) alloy capacity increasing and toughening modified polypropylene corrugated pipe and a preparation method of the special material. The special material comprises, by weight, 60-85 parts of block co-polypropylene granules, 5-10 parts of fillers, 5-30 parts of capacity increasing and toughening agents and 1-5 parts of flowability modifiers. The corrugated pipe produced by the special material has the advantages of good mechanical properties, better low-temperature impact resistance, high heat distortion temperature, high heat conductivity coefficient, good flame resistance, good surface glossiness, good production stability and the like.

The invention relates to a range extended electric vehicle power system, which mainly comprises an internal combustion engine, a first motor, a second motor, a double clutch transmission device and a set of change gear mechanism, wherein a crank shaft of the internal combustion engine 1 is connected with a shell 2 of the double clutch transmission device; a first clutch 3 of the double clutch transmission device is connected with a first transmission gear 11 through a transmission shaft 13; a second clutch 4 of the double clutch transmission device is connected with a rotor 7 of the first motor; and a rotor 10 of the second motor is connected with a second transmission gear 8. The series operation mode and the parallel operation mode of the range extended electric vehicle power system can be switched by controlling the combination or separation of the first clutch 3 and the second clutch 4 of the double clutch transmission device. The first transmission gear and the second transmission gear form the change gear mechanism, so that the output torque of the second motor can be increased.

The invention discloses a heterogeneous / special-shaped acoustic black hole and phononic crystal mixed vibration and noise reduction enhancing structure which comprises two laminates. The two laminates are fixed in a mutually attached mode, heterogeneous / special-shaped acoustic black hole arrays are embedded in the two laminates respectively, the heterogeneous / special-shaped acoustic black hole arrays on the two laminates are in mirror symmetry, and the corresponding acoustic black hole structures in the heterogeneous / special-shaped acoustic black hole arrays on the two laminates form a black hole cavity. Each heterogeneous / special-shaped acoustic black hole array comprises a special-shaped acoustic black hole structure, and the special-shaped acoustic black hole structure is obtained by combining the characteristics of a uniform circular two-dimensional acoustic black hole structure and a wedge-shaped two-dimensional acoustic black hole structure. The structure further comprises a damping material piece or a sound absorption material piece which is attached to the interior of the black hole cavity. Full-frequency-band vibration and noise reduction can be achieved, and the cost is reduced while an automobile is lightened.

The invention relates to a transmission capable of realizing low cost, light weight and compaction, having a speed changing function with setting freedom degree and high variation ratio containing speed increasing ratio and a clutch function for switching the transference / truncation of the torque moment, and capable of realizing durability improvement by application of optimum clamp press force corresponding to the variation ratio. The inventive transmission has a circular plate shaped input disk installed on an input shaft; a circular plate shaped output disk installed on an output shaft; a pair of pressure rollers provided to be movable along a two-axes connecting line of the axes of the input and output shafts, within a disk overlapping area that the input and output disks overlap witheach other. The pressure roller pair is configured to sandwich the input and output disks at a position corresponding to a required transmission ratio, wherein the pressure roller pair includes a guide plate and a cam follower which regulate the acting force of the disk spring applied as the clamping press force of the two disks to obtain the optimum push clamp force corresponding to the transmission condition.

The invention provides a battery module capable of preventing generation of bending stress of at a connection portion between an end plate and a side plate. The battery module (1) includes: a cell stack body (2) that is constituted by a plurality of cells (21) stacked in a front-rear direction and comprises a front surface, a rear surface, a left surface, a right surface, an upper surface, and a lower surface; a pair of end plates (3) that are disposed on the front surface and the rear surface of the cell stack body (2); and a pair of side frames (4) disposed on the right surface and the leftsurface of the cell stack body (2). An end of the end plate (3) and an end of the side frame (4) have an overlapping portion (R) in which the end of the end plate and the end of the side frame overlapwith each other when viewed from an up-down direction. The overlapping portion (R) has a through hole (34, 44) passing through in the up-down direction. A connection shaft (5) is inserted into the through hole (34, 44).

The invention discloses a high-performance functionalized alloy modified polypropylene corrugated pipe special-use material and a preparation method thereof. The special-use material includes, by weight, 40-70 parts of homo-polypropylene powder, 15-25 parts of block-copolymerized polypropylene powder, 3-15 parts of filler, 2-10 parts of a compatibilizing and toughening agent, 1-5 parts of a flowability modifier, 1-5 parts of a flame retardant, 0.1-1.2 parts of an antioxidant, and 0.05-0.5 parts of an ultraviolet absorber. The corrugated pipe manufactured from the special-use material has goodmechanical performance and low-temperature anti-impact effect, is high in thermal-deformation temperature and heat-conductivity, and has good flame retarding effect, excellent surface glossiness and production stability.

The invention relates to a satellite-borne SAR (Synthetic Aperture Radar) and GNSS (Global Navigation Satellite System)-S (Global Navigation Satellite System) integrated system and a cooperative detection method, and the system comprises an L-band three-frequency-band common-aperture phased array antenna (100) which is used for transmitting and receiving electromagnetic signals of three sub-frequency bands of an L-band at the same time; the radar host (200) is used for receiving and transmitting SAR signals, receiving GNSS-S signals and performing radar time sequence control; and the on-orbit processing system (300) is used for carrying out coherent processing, SAR imaging and target detection on SAR signals and GNSS-S radar signals, carrying out on-orbit shaping on wave beams of the L-band three-frequency-band common-aperture phased array antenna (100), and completing sea surface ship target search detection, imaging identification and positioning tracking. The method has the advantages of large-range sea surface target search, high-resolution imaging, long-time tracking and the like.

The invention aims at providing a plastic and metal mixed front frame which has low cost and light weight and has an anti-static function and a liquid crystal module. The plastic and metal mixed front frame is composed of at least one metal part made of metal materials and at least one plastic part made of plastic materials in connection mode. The metal part is applied to the front frame on the corresponding portion of at least one chip on film, the metal part and a rear panel of an electric conduction material are electrically connected through an electric conduction part, and accordingly electrostatic discharge of a liquid crystal display panel is effectively achieved. The at least one plastic part is applied to other portions of the front frame. Therefore, weight of the front frame is effectively reduced, the purpose of reducing weight of the whole liquid crystal product is achieved, and liquid crystal production weight reduction is achieved. Simultaneously, use amount of metal materials used for producing the mixed front frame can be greatly reduced so that production cost of the front frame is greatly reduced and the technical problems of high production cost and large weight of the liquid crystal module are solved.

The purpose of the invention is to provide an image display device which divides single frames into a plurality of fields to perform drive operations, and in which light-source lighting periods of sufficient lengths are ensured. Accordingly, a field-sequential image display device has, provided therein as modes for when data is to be written to pixel units, a normal writing mode in which data is written one row at a time, and a high-speed writing mode in which data having the same values is written a plurality of rows at a time for each column. In blue fields (F(B)), the high-speed writing mode is used to perform data-writing processing. In green fields (F(G)) and red fields (F(R)), the normal writing mode is used to perform data writing processing.

A tubeless steel wheel with no welding and unequal thickness on the rim, including spokes and rims, the spokes and rims are made of the same round cake material, which is ring-cut into spokes after repeated spinning Raw materials and rim raw materials, the spoke raw materials and rim raw materials are spinned for many times to form a spoke and a rim, and the spoke and rim are welded together by welding. The raw material of the spoke and the rim is spinning formed by the same blank material, and the rim part has no assembly joint surface, welding line and solder filler, and its structure is fine and dense. At the same time, the strength of the spoke and the rim is enhanced, and the assembly and welding accuracy is high. . The spokes and rim parts can be formed by spinning to achieve unequal thickness and variable cross-section, so that weak parts can be reinforced, and the material of the parts with little or no stress can be appropriately reduced, so as to realize the weight reduction of the wheel. The rim part has no welding links, and there are no welding and grinding defects; the overall surface quality of the rim part is good, and the airtightness is good.

The invention discloses a new-energy vehicle motor suspension assembly. The new-energy vehicle comprises a motor, a vehicle cold air pipeline, an electric vehicle controller and vehicle power supply;the new-energy vehicle motor suspension assembly comprises a vehicle frame end suspension supporting frame, a suspension rubber gasket which is arranged on the vehicle frame end suspension supportingframe and is in connection with the vehicle frame end suspension supporting frame, a motor end suspension supporting frame which is arranged on the suspension rubber gasket and is in connection with the suspension rubber gasket, a stress relief pad arranged on the vehicle frame end suspension supporting frame, and a motor cooling device which is arranged on the vehicle frame end suspension supporting frame and is in connection with the vehicle frame end suspension support frame. The new-energy vehicle motor suspension assembly has the advantages of being simple in structure, light, excellent in stiffness performance, low in cost, and being capable of effectively prolonging the service life of suspension parts and the motor.

The invention relates to a heat dissipation device for an oil pump. The oil pump comprises a motor and a hydraulic oil tank. The motor comprises a motor controller IGBT module. The heat dissipation device is arranged on the lower portion of the motor controller IGBT module. The IGBT module comprises a control panel, a driving plate, a gate pole plate and an IGBT element. The heat dissipation device comprises a groove and an oil fluid assembly. The groove is a rectangular water-cooling groove composed of a left water tank and a right water tank. The left water-cooling tank is arranged at the lower end of the IGBT element, and the right water-cooling tank is arranged on the lower portion of the oil fluid assembly. According to the heat dissipation device, integrated consideration of the IGBTelement and hydraulic oil fluid heat dissipation is put forward for the first time, the function of an oil cooler is achieved simultaneously on the basis of traditional water-cooling heat dissipation, the characteristic of the low cold source temperature of the heat dissipation device is fully utilized, a cooling liquid flowing out of the heat dissipation device can still serve as a cold source of an oil-water heat exchanger, one path of circulating water is reduced, and the high integration and lightweight effects are achieved.

A rotating speed detection sensor is an active sensor, and a sensing section (35) of the sensor is directly faced to a magnetic encoder (10) without an interposed object provided between the sensing section and the magnetic encoder (10). A harness (34) (or connector) of the rotating speed detection sensor (30) is led out from a gap between a knuckle (N) and a constant velocity joint (9).