61results about How to "Weight optimization" patented technology

The invention provides a cast iron sand mold coating and a preparation method thereof, and relates to the field of casting sand mold coatings. The cast iron sand mold coating is composed of the following raw materials: a fireproof filler, a liquid carrier, a suspending agent, a binder and an auxiliary agent. The raw materials comprise, by weight, 65-70% of the fireproof filler, 19-25% of the liquid carrier, 2-4% of the suspending agent, 4.4-5.5% of the binder and 2.4-3% of the auxiliary agent; the refractory filler is composed of magnesia powder, zircon powder and graphite powder; the magnesia powder is composed of light magnesia powder and heavy magnesia powder. According to the cast iron sand mold coating and the preparation method thereof, the problems that an existing shielding type coating is thin in anti-sulfuration coating thickness, poor in anti-sulfuration coating stability, general in anti-sulfuration effect and large in gas forming amount can be effectively solved, poor spheroidization and casting defects of castings are effectively avoided, the production cost is reduced, and the stability of the castings is improved.

The utility model relates to the technical field of batteries, and provides a battery management system and a battery pack. The battery management system comprises a shell, at least two first circuit boards and a second circuit board, wherein the at least two first circuit boards are arranged in the shell, each first circuit board extends in the first direction, the at least two first circuit boards are arranged at intervals in the second direction, and every two adjacent first circuit boards are electrically connected. The second circuit board is arranged in the shell, the second circuit board extends in the second direction, the second circuit board abuts against the at least two first circuit boards in the first direction, and the second circuit board is electrically connected with one of the first circuit boards. Wherein the first direction is perpendicular to the second direction. Therefore, the size and the weight of the battery management system can be optimized, and the technical problem that the battery management system occupies more installation space in the battery pack is solved.

The utility model relates to a mobile DC bidirectional storage and charging all-in-one machine and a system thereof. The storage and charging all-in-one machine comprises a direct-current two-way charging and discharging circuit arranged in a shell and a charging gun electrically connected with the direct-current two-way charging and discharging circuit. And when the DC bidirectional charging and discharging circuit receives a discharging signal, a discharging path is formed between the DC bidirectional charging and discharging circuit and the charging gun, so that the storage and charging all-in-one machine supplies power to the to-be-charged equipment through the discharging path. When the direct-current bidirectional charging and discharging circuit receives a charging signal, a charging path is formed between the direct-current bidirectional charging and discharging circuit and the charging gun, so that the storage and charging all-in-one machine stores energy through the charging path. According to the utility model, a charging loop and a discharging loop are integrated, so that the utilization rate of materials in the equipment is improved, the material cost is effectively reduced, the structure and the weight of the product are further optimized, and the movement flexibility of the product is improved.

The utility model relates to the technical field of asphalt road flattening devices, and discloses an asphalt road flattening device which comprises a flattening frame provided with two load-bearing rollers, an adaptive frame is arranged on the side edge of the flattening frame, a sliding bearing seat is arranged in the adaptive frame in a sliding mode, and the load-bearing rollers are arranged on the sliding bearing seat. The two ends of the load bearing roller are rotationally arranged in the sliding bearing seats, springs are arranged at the upper ends and the lower ends of the sliding bearing seats, and handrails used for pushing the flattening frame to move are fixedly arranged on the flattening frame. The asphalt pavement compacting device is simple in structure, has two compacting surfaces acting on an asphalt pavement, can increase the weight of the load-bearing roller by adding water to play a role in rapid compacting during working, and in addition, an additional downward pressure is effectively increased under the action of the linear vibrator, so that the compacting effect is better, and the asphalt pavement compacting device is suitable for popularization and application. Water can be drained after the water filling nozzle cover is taken down, the weight of the load-bearing roller is reduced, and transportation and movement are facilitated.

The invention provides a wave absorbing unit and a wave absorbing structure, and relates to the technical field of electromagnetic wave absorbing materials. The wave absorbing unit comprises a first wave absorbing body and a second wave absorbing body. The first wave absorber is made of a dielectric material. The first wave absorbing body comprises a base and a wave absorbing main body, and the wave absorbing main body is conical or wedge-shaped; the wave absorbing body is arranged on the base, and a cavity is formed in the wave absorbing body. And the second wave absorbing body is made of a magnetic material. The second wave absorbing body is arranged on the side, away from the wave absorbing body, of the base, or the second wave absorbing body is arranged in the cavity. The wave absorbing structure provided by the invention adopts the wave absorbing unit. According to the wave-absorbing unit and the wave-absorbing structure provided by the invention, the problems of large overall weight, high cost and high installation difficulty of a wave-absorbing material caused by increase of manufacturing materials in order to improve the wave-absorbing performance in the prior art can be solved.

The utility model discloses a titanium teakettle which comprises a kettle body, a kettle cover and a kettle mouth, the kettle cover is connected with the kettle body in a covering mode, the kettle cover is provided with a lifting ring, the kettle body is provided with a lifting beam, the kettle body is connected with the kettle mouth in a welding mode, and the kettle body and the kettle mouth are of an integrally-formed structure. The kettle body and the kettle nozzle are of an integrally-formed structure, so that the titanium kettle is not welded at other positions except the kettle body and the kettle nozzle, the problems of microstructure damage and performance reduction possibly caused by welding are avoided, and meanwhile the sealing performance, the integrity and the attractiveness of the product are improved.

The utility model discloses a sea cucumber soaking combined pot which is provided with an outer container and an inner container which can be separated, and the outer container comprises an outer heating bottom, an outer heating wall and an outer port; the inner container comprises an inner heat transfer bottom, an inner heat transfer wall and an inner port; the inner container is arranged in a containing space which is defined by the outer heating bottom and the outer heating wall and used for dry pot cooking through the outer end opening, and the containing space is defined by the outer heating bottom and the outer heating wall. By means of the innovative design of the sea cucumber soaking combined pot, more efficient, safer and more convenient sea cucumber soaking experience is achieved, meanwhile, better rice taste and multifunctional use possibility are additionally provided, cost is lower, and remarkable market advantages are achieved.

The bracket assembly and automobile of this application belong to the field of automotive technology. The bracket assembly includes a support plate and a support frame. The support frame has a support body and a hollow area. The support body spans across both ends of the support plate along its length. The hollow area and the support body are arranged along the width of the support plate. The support frame is fixed to the support plate. The elastic modulus of the material of the support frame is greater than that of the material of the support plate, and the density of the material of the support plate is less than that of the material of the support frame. The bracket assembly and automobile of this application, on the one hand, can reduce the probability of vibration and abnormal noise of the rear shelf during vehicle operation, and the rear shelf, supported by the bracket assembly, can bear a larger weight to better realize the storage function of the rear shelf. On the other hand, the bracket assembly composed of the support plate and the support frame has a lighter structural weight, which can reduce the overall vehicle weight.

The utility model discloses a sword type crank arm structure, an arm support and a trolley, the sword type crank arm structure comprises a rib plate and two symmetrical side plates, and the rib plate is fixedly connected between the two side plates; a first hinging structure is arranged at the first end of the side plate and is used for hinging a big arm; a second hinge structure is arranged at the second end of the side plate and used for being hinged to a rotary table; a first protrusion extending upwards is arranged at the position, close to the first end, of the side plate, and a first hinge hole is formed in the first protrusion and used for being hinged to a large arm pitching oil cylinder. The large arm pitching oil cylinder is applied to the technical field of tunnel machinery, the hinge point of the large arm pitching oil cylinder and the side plate of the crank arm are integrally designed, and a trolley folding gap between the crank arm and the large arm can be effectively reduced, so that the aim of reducing the height of a cantilever crane and the whole trolley is fulfilled.

The utility model discloses a speed-increasing type draught fan pipe barrel frame inhaul cable supporting structure which comprises a supporting platform, a supporting column assembly, an outer frame assembly, an inhaul cable supporting assembly, a first mandrel and a second mandrel, the supporting column assembly is vertically fixed to the top of the supporting platform, the first mandrel is fixedly arranged on one side of the top of the supporting column assembly, and the second mandrel is fixedly arranged on the other side of the top of the supporting column assembly. A second core shaft is fixedly arranged on one side of the top of the supporting column assembly, the outer wall of the first core shaft is fixedly connected with an outer frame assembly through an inhaul cable supporting assembly, the outer wall of the second core shaft is fixedly connected with the outer frame assembly through an inhaul cable supporting assembly, and the bottom of the outer frame assembly is fixedly connected with the supporting platform through a plurality of fixing rods. The utility model has the beneficial effects of reasonable structure, light weight and high strength, and is suitable for being used in wind fields with lower wind speed.

The invention belongs to the technical field of metal piece machining, and particularly relates to a bicycle handlebar and a manufacturing method thereof.The bicycle handlebar comprises a handlebar body, handlebar parts bent downwards are formed at the two ends of the handlebar body, an axle connecting part is formed in the middle of the handlebar body, and a cross arm part is formed between the handlebar parts and the axle connecting part; the included angle between the cross arm part and the axis of the axle connecting part is 2-6 degrees; according to the handlebar, the design that the wall thickness of the axle connecting part is large is adopted, so that the handlebar has better stress capacity and impact resistance, the cross arm part and the axle connecting part form an included angle, the wind breaking capacity is improved, the wind resistance during riding is reduced, the handlebar part and the cross arm part are small in wall thickness, the weight of the handlebar is fully reduced, riding is more labor-saving and convenient, and the service life of the handlebar is prolonged. A traditional manufacturing process is improved, a spinning machining mode is combined, and the limitation that the diameter and the wall thickness of a traditional bicycle handlebar are uniform is eliminated through multi-stage spinning, pipe bending and electroplating.

The present invention discloses a broadband signal real-time digital predistortion method, terminal and system, belonging to the field of information transmission and processing. The present invention adopts framing, coding, shaping filtering, DA conversion, AD coding, matching filtering, clock recovery, carrier recovery, decoding, data extraction, time domain equalization and tap update processing at the ground end, and adopts framing, coding, shaping filtering, DA conversion, AD coding, matching filtering, clock recovery, carrier recovery, decoding and data extraction processing at the satellite end, which can match the distortion of the channel and realize compensation for the distortion of the channel. The satellite-borne platform of the present invention can save the digital equalizer with large resource occupation, and has a relatively obvious improvement on the weight, volume and power consumption of the satellite-borne platform, and can respond to the distortion of the channel in a short time.

A current decoupling control method for an auxiliary inductor dual-buck half-bridge power amplifier relates to the field of precision motor drive. The present invention controls the magnitude of the average current flowing through the auxiliary inductor to balance the current passing through the filter inductors on the two branches, thereby reducing the output current pulsation and further reducing the loss. The magnitudes of the currents in the two branches are set to constant values, so that the two branch currents output a half-cycle sine wave, and the branch output current does not pass through the zero point, thereby reducing the switching loss and harmonic distortion. The topological method of auxiliary increase in inductance can reduce the total inductance volume of the loop, and improve the problem of large inductance volume and weight caused by the DC bias magnetization of the inductor caused by the bias current. In addition, the auxiliary inductor current is added to the bias current of the loop, thereby reducing the nonlinear distortion of the system. The present invention improves the disadvantage of large inductance volume in the traditional dual-buck half-bridge inverter circuit loop, reduces the cost, and reduces the harmonic distortion of the circuit.

The invention relates to the technical field of marine lamps, and discloses an addressable marine lamp based on power line carrier communication, which comprises a lamp moving box body, a charging box is arranged at the rear end of the lamp moving box body, and lamps are symmetrically arranged on the two sides of the front end surface and the lower surface of the lamp moving box body. A controller is arranged between the two lamps and comprises a loudspeaker module, a power line carrier module, a clock module, a storage module, a microcontroller module and a power supply module, and the microcontroller module is connected with the loudspeaker module through the power line carrier module. And the clock module, the memory module and the power supply module are respectively connected with the microcontroller module. The power line carrier module and the addressable loudspeaker are arranged in the lamp, the original power supply cable of the lamp is utilized, the functions of supplying power to the lamp and transmitting broadcast signals at the same time are achieved, the number of devices and the use amount of cables can be reduced, and the weight center of gravity and spatial arrangement of a ship are effectively optimized.

The invention provides a near-to-eye display structure and method based on an MEMS technology, and belongs to the technical field of near-to-eye display. A near-to-eye display structure based on an MEMS technology comprises a plurality of single pixel point structures with certain transparency, each single pixel point structure comprises a transparent substrate, a light source, a collimating micro lens and an MEMS Fabry-Perot cavity structure, and the collimating micro lens comprises a first light incident surface, a first light emergent surface, a second light incident surface, a side surface and a second light emergent surface; the lens and the screen are combined, the resolution is remarkably improved to 40-50 times that of a traditional device, meanwhile, the multi-angle adjusting capacity of the light source structure breaks through the limitation of the field angle and can reach 90 degrees or above, in addition, the scheme avoids using a miniature screen and a projection screen component, the cost is reduced, and the application range is wide. The size and the weight of the device are optimized, a software correction step needed by optical phase difference is omitted, and double improvement of performance and efficiency is achieved.

The present application provides a shell, a preparation method thereof and an electronic device. The shell of the present application comprises: a shell body, the raw material components of the shell body include inorganic powder, thermoplastic resin and photoexpansion agent; the photoexpansion agent is dispersed in part of the shell body. The shell of the present application has light weight, high hardness and wear resistance.

This invention belongs to the field of marine engineering equipment technology, and relates to a riser connector connection structure and riser module. The riser connector connection structure includes a wedge block, a wedge groove, and an inlet groove. The wedge groove and the inlet groove are connected, and their connection has a stepped structure. When the wedge block is inserted axially into the inlet groove, the male and female connectors rotate relative to each other, allowing the wedge block to rotate into the corresponding wedge groove through the stepped structure. The wedge groove restricts the axial and radial movement of the wedge block, and the wedge groove, in conjunction with the stepped structure, restricts the circumferential movement of the wedge block. The technical solution provided by this riser connector connection structure and riser module, on the one hand, can improve the pressure resistance and reliability of the connection between two risers to a certain extent, while also achieving lightweighting of the riser connector connection structure; on the other hand, it simplifies the detachable operation method between the two pipe fittings and significantly reduces maintenance and upkeep costs.

The invention relates to the technical field of cables, in particular to a compression-resistant net-shaped optical fiber ribbon cable which is reduced in cable diameter, good in flexibility, low in material consumption and low in production cost. Comprising a semicircular sheath, a base is integrally formed at the bottom of the sheath, a notch is formed between the base and the sheath, transmission assemblies are arranged at the two ends of the sheath, each transmission assembly comprises a sleeve and a plurality of round parallel belts arranged in the sleeve, and the round parallel belts are arranged in a linear array shape. The adjacent round parallel belts in each horizontal row are connected through hanging necks; two symmetrically-arranged supporting pieces are connected to the notch, the top ends of the supporting pieces incline towards the outer side so that a triangular structure can be formed between the sheath and the supporting pieces, and the surface of the sheath is sequentially provided with an isolation sleeve, a steel tape armoring layer, an outer sleeve and abrasion-resistant heat reflection coating.

This application relates to the field of optical ranging device technology, and provides an optical ranging device and a mobile robot. The optical ranging device includes: an optical ranging unit, which includes a transmitting component and a rotating mirror component. The transmitting component is used to emit a detection beam, and the rotating mirror component is rotatable relative to the transmitting component about a rotation axis. An emitting layer is disposed on the rotating mirror component, and an emitting cavity is disposed within the emitting layer. A first reflecting surface is disposed within the emitting cavity, which is used to reflect the detection beam, thereby changing the illumination angle of the detection beam during the rotation of the rotating mirror component, so that the detection beam can illuminate the external environment. A first reinforcing structure is disposed on the emitting layer. The optical ranging device provided by this application optimizes the weight distribution of the rotating mirror component by providing a first reinforcing structure on the emitting layer of the rotating mirror component, reducing unnecessary material accumulation, and facilitating the lightweight and miniaturized design of the optical ranging device.

A computer implemented method to determine ego motion of a vehicle, the vehicle having at least one radar emitter with a plurality of reception antennae, the method including the steps of: • acquiring, from the reception antennae, different frames of radar data of the vehicle surrounding environment, each frame being acquired at a different time; • deriving from the radar data of each different frame, an environment map of the vehicle surrounding environment; and • deriving the ego motion of the vehicle by: - merging environment maps from at least two different frames into one accumulated map, - computing, from the accumulated map, a motion vector for each pixel of the accumulated map, - extracting, from the accumulated map, a mask map including a tensor mapping a weight for each pixel of the accumulated map.

The utility model discloses an SCI rotating cathode cooled by water cooling. The SCI rotating cathode comprises a magnetic bar assembly and a driving end assembly, the magnetic bar assembly is provided with a cooling assembly, and cooling water is circularly introduced through the cooling assembly to cool the magnetic bar assembly; the cooling assembly comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is communicated with a rear sealing cover of the driving end assembly through a water inlet flow channel, and cooling water enters from the water inlet pipe, enters a cooling chamber of the magnetic rod assembly through a center flow channel of the rear sealing cover, then passes through a cooling cavity of the magnetic rod assembly and a front sealing cover and then returns to a water return flow channel in the driving end assembly. And finally, the water is guided back through the water outlet pipe. According to the rotating cathode, the cooling pipeline is designed in the driving end, so that inlet water and outlet water of circulating cooling water can directly enter and exit from the magnetic rod assembly through the driving end, the function that the driving end drives the magnetic rod assembly to rotate is not affected through the ingenious pipeline design, and compared with an existing external cooling system, the structure is more ingenious, and the cooling efficiency is improved. The overall weight and the size of the rotating cathode are obviously improved.

The embodiment of the present application provides a composite structure for building reinforcement, which comprises a plate-shaped composite structure, wherein the plate-shaped composite structure is fixedly attached to the surface of a building and comprises a first fiber layer, a metal layer and a second fiber layer from the surface of the building outward in sequence; the plate-shaped composite structure has flexibility and changes with the shape of the surface of the building after being fixed to the surface of the building. The plate-shaped composite structure in the composite structure has the characteristics of low cross-sectional height, large unfolding area and stress dispersion, and has the advantages of good adhesion after being fully glued to the interface of the building, can effectively provide support, can provide rapid reinforcement and increase the bearing capacity for the building with small construction space, and is especially suitable for the installation of internal small-limit buildings and tunnels. The composite structure can very effectively, flexibly and quickly provide a new reliable option for the constructor, and realizes the life extension of the reinforced building.

The present invention discloses a glutarimide compound and its application, specifically a compound represented by formula (VII-0) and a pharmaceutically acceptable salt thereof.

Provided is a urate oxidase preparation. The urate oxidase preparation includes polyethylene glycol-modified urate oxidase as an active ingredient and a buffer reagent as an excipient.

The utility model belongs to the technical field of oxygen generation and supply, and discloses a portable oxygen generation breathing device based on a membrane separation technology. The oxygen supply device is connected with a breathing mask through an air delivery pipe and comprises a shell, a power device is installed in the shell, the power device is coaxially connected with an oxygen generation device, the oxygen generation device comprises an air cylinder, the bottom of the air cylinder is connected with an air storage tank through an air outlet end, and an oxygen enrichment separation membrane is installed in the air outlet end. A first valve type one-way valve is mounted at a port of the air outlet end and is positioned at the bottom of the oxygen-enriched separation membrane; according to the oxygen-rich oxygen generator, oxygen-rich gas can be efficiently separated, the oxygen generation efficiency is improved, the purity of oxygen is ensured, and rich oxygen is ensured to be provided, so that the adaptation and activity capability of an organism in a low-pressure and low-oxygen environment in an oxygen-lean region is enhanced.

The utility model relates to underwater equipment measurement technical field especially relates to a kind of device for measuring the mooring thrust of underwater propeller, including test pool and device main body, the device main body includes cover, hoisting frame, sensor and propeller;The cover is covered in test pool top;One end of hoisting frame is connected with cover, and the other end of hoisting frame is connected with sensor and extends into the test pool;Sensor is connected between the propeller and hoisting frame, and sensor can directly measure the horizontal direction thrust of propeller.Adapter support is connected between sensor and propeller, so that the thrust of propeller is directly transmitted to sensor.The utility model is simple in structure, can be directly measured, thrust value and sensor reading correspond, save intermediate conversion link, improve measurement efficiency and accuracy.

The ultrahigh-pressure hydraulic riveting tool comprises a riveting clamping jaw and a riveting anvil which are driven by a hydraulic oil cylinder, and an oil cylinder body is composed of an outer-layer alloy cylinder body and an inner-layer alloy cylinder body; the inner-layer alloy cylinder body and the outer-layer alloy cylinder body are combined through interference nesting to form an oil cylinder body barrel of an integrated structure; in the interference joint surfaces of the inner-layer alloy cylinder body and the outer-layer alloy cylinder body, the side wall joint surface is of a linear cylinder joint surface structure, the front end joint surface is of a plane annular joint surface structure arranged in the radial direction, and an arc ring transition joint surface structure is arranged between the side wall joint surface and the front end joint surface. The double-layer cylinder body nesting combination mode is adopted for the first time, and the stress distribution of the cylinder body in a high-pressure state is more uniform due to prestress generated by extrusion and diameter expansion in the nesting combination process; the alloy material cylinder body has good forming performance, can be processed in multiple modes such as hot processing and liquid nitrogen cold processing, has high thermoplasticity and low plastic strain hardening index, and can effectively avoid fracture of the cylinder body.

This utility model relates to a horizontal inclined core-pulling mechanism capable of synchronous and angled core pulling. It includes an inclined core-pulling base, a first inclined slide block, a second inclined slide block, a core, and a hydraulic cylinder. The inclined core-pulling base is connected to the output end of the hydraulic cylinder, and both are horizontally arranged. The inclined core-pulling base has a first inclined guide block and a second inclined guide block arranged side-by-side with the same inclination. The first inclined slide block has a first inclined guide groove that matches and slides with the first inclined guide block. The second inclined slide block has a second inclined guide groove and a third inclined guide groove that match and slides with the first and second inclined guide blocks, respectively. The core is correspondingly positioned on the first and second inclined slide blocks. This technical solution can synchronously and angledly complete the core pulling and resetting of two cores, optimizing mold structure, space occupation, weight, and manufacturing cost. It also minimizes interference between the two cores and ensures the quality of the casting.

The utility model discloses a silicon carbide power amplification circuit integrated module and a power amplification circuit, the silicon carbide power amplification circuit integrated module comprises a ceramic substrate and a silicon carbide power amplification device, one side of the ceramic substrate is provided with a metal coating layer, and a conductive circuit is processed and formed on the metal coating layer; and a bonding pad of the silicon carbide power amplification device is electrically connected with the conductive circuit. Through the mode, the power amplification circuit integrated module can be used in a higher-voltage and higher-frequency working state, the efficiency of the power amplification circuit is improved, the energy loss of the circuit is reduced, heat generation is reduced, higher integration level and compatibility of devices are realized, the space occupied by the power amplification circuit on a circuit board is reduced, and the power amplification circuit integrated module is convenient to use. And the production cost is reduced.