40results about How to "Little impact on weight" patented technology

The invention discloses a power battery composite heat management system and a method thereof. The power battery composite heat management system comprises a water tank filled with a circulating fluid, a circulating pump, a sealing cover plate of the water tank, and a battery pack array which is fixedly mounted above the sealing cover plate and is composed of a plurality of battery cells, wherein a temperature equalizing plate and a heat pipe are adhered onto the surface of each battery cell respectively, and cooing sections of the heat pipes pass through the sealing cover plate to be arranged in the circulating fluid in the water tank; a circulating fluid inlet is formed in one side end of the water tank, a circulating fluid outlet is formed in the other side end of the water tank, and a circulating fluid turbulent flow structure is arranged inside the water tank, so that the circulating fluid flows into the circulating fluid outlet from the circulating fluid inlet of the water tank in a curve flowing manner. The system and the method thereof can solve the technical problems such as heat dissipation, battery pack temperature difference reduction, battery preheating and heat cyclic utilization under different working conditions of batteries; and meanwhile, the system is compact and simple in structure and convenient in installation and maintenance, accords with the development tendency of battery heat management systems and electric automobiles, and has good application prospects.

A technique of finishing laterally-hydrophilic and laterally-waterproof clothing fabrics relates to textile fabric finishing techniques and includes: weaving fabrics; pre-finishing; sequentially refining, dyeing, soaping and drying the fabrics obtained by weaving; rotary screen printing and waterproofing; hydrophilic finishing by padding process; and completing finishing of the laterally-hydrophilic and laterally-waterproof clothing fabrics. Thinning agent is applied to one side of each fabric by means of rotary screen printing, hydrophilic agent is applied to the other side of the fabric by means of padding, and accordingly, one side of the fabric is waterproof and the other side of the fabric is hydrophilic, namely the waterproof side and the hydrophilic side can be combined well to achieve function diversity of the double sides. Using a double-layer or multi-layer structure is avoided, the rotary screen printing technique and the padding process are used for hydrophilic finishing and waterproofing of the fabrics, and accordingly, affection on fabric weight is low, and flexibility of the fabrics can be improved.

The invention discloses a power battery composite thermal management system and a power battery composite thermal management method based on natural circulation. The system comprises a battery pack array, a cooling cavity shell, a condenser and a heat pipe array composed of a plurality of heat pipes; sleeves which do not communicate with one another are distributed in the inner cavity of the cooling cavity shell; working solution is filled into the inner cavity of the cooling cavity shell; the condenser is connected between the steam outlet and working solution return port of the cooling cavity shell; the evaporation section of each heat pipe is clamped between the batteries, the condensation sections separately correspondingly stretch into the sleeves, and the outer circumferential surfaces of the condensation sections are fit with the inner circumferential surfaces of the sleeves. The system utilizes the heat pipes to quickly export heat generated by the batteries to the working solution, so that the working solution is heated and boiled; by using the natural circulation, the working solution returns to the cooling cavity shell after flowing through the cooling system, and the heat is finally radiated to the external environment via the condenser. The system can solve the technical problems of heat dissipation and energy saving of the batteries under different working conditions can be solved, and meanwhile, the system is compact and simple in structure, and convenient to install and maintain.

The present invention discloses a sound amplification wooden guitar, including a resonator, a sound hole, strings and a bridge, wherein, the resonator is composed of an upper panel, a lower panel and side panels, the sound hole is arranged on the upper panel, the strings are arranged over the sound hole, and the bridge is used for fixing one ends of strings. The sound amplification wooden guitar also includes a pickup device, an audio amplification module, a vibration enhancing device, and a power module, wherein, the pickup device is used for converting the mechanical vibration of strings to electrical signals, the audio amplification module is used for amplifying the electrical signals, the vibration enhancing device is used for converting the amplified electrical signals to the mechanical vibration and transmitting the mechanical vibration to the upper panel and the lower panel of the resonator, and the power module is used for providing a power source. The sound amplification wooden guitar can solve an acoustic wooden guitar volume problem that had plagued guitar players for a long time, greatly enhance the music performance, and drive the guitar music far-reaching development. The sound amplification wooden guitar has the very high market value in consideration of the huge inventory and demands of the acoustic wooden guitar in the globe.

The invention provides an electric bass or electric guitar with multiple functions. The electric bass or electric guitar comprises a head, a neck and a body. The body comprises a sound pickup, a sound volume turn button potentiometer, an external equipment connecting port and a battery module. The electric bass or electric guitar is characterized in that the body further comprises a core circuit board, a core circuit board switch, a display lamp, a loudspeaker, a control panel and a USB interface; and the core circuit board switch, the display lamp, the loudspeaker, the control panel, the USB interface, the sound pickup, the sound volume turn button potentiometer, the external equipment connecting port and the battery module are connected with the core circuit board. According to the electric bass or electric guitar, an external connected sound box loudspeaker, an effect device, a tuning meter, a drum machine and a circuit of a USB interface memory player of the common electric bass or electric guitar are integrated on the core circuit board; use and adjustment of each function are realized through the core circuit board switch and the control panel; convenience in performance or exercise of the electric bass or electric guitar is greatly improved; and furthermore a large amount of cost is saved.

The invention provides a waterproof air-isolating paper cone and a preparation method and application thereof. The waterproof air-isolating paper cone is prepared from the following raw materials: bleached sulfate softwood pulp, cotton pulp, Spanish grass pulp, a cationic styrene-acrylic emulsion and chitosan. The paper cone is composed of the paper pulp, the cationic styrene-acrylic emulsion and the chitosan. Pulp with long and soft fibers and excellent interweavability and filling property is selected as the paper pulp so as to reduce inherent porosity in a network structure of the paper cone; and then the paper cone is endowed with excellent waterproof air-isolating performance through the synergistic interaction of the cationic styrene-acrylic emulsion and the chitosan.

The invention discloses an electronic jitter absorbing method based on a common precision gyro, which is mainly used in a sensor electronic jitter absorbing system. In the method, the common precision gyro is used to calculate the jitter offset of a camera system and estimate the quadrant ( direction) of the jitter, local motion estimation is performed by taking the center of the quadrant as the initial searching position of a block matching algorithm, and after 'abnormal points' in a local motion vector are eliminated according to the jitter direction information, a global motion vector is estimated quickly and the image is compensated to achieve a jitter absorbing effect. The method is based on a simple principle and easy to implement, can improve operation speed and estimation precision, has low requirement on the precision of gyro, and can greatly reduce hardware cost, use a micro mechanical gyro with a very small volume, avoid making system more complex and avoid complex offset calibration and compensation drift calculation.

The invention discloses an easy-to-lay anti-freezing heat-resistant cable for municipal construction and a matched cable bracket. The cable comprises a cable body, a transmission line, a temperature detection probe, a cable core, a filling layer, a protection ring, a cable support and a laying pit. The outer side of the cable body is provided with a pressure-resistant plate. Wiring grooves are formed in the upper and lower ends of the cable body; a transmission line is fixed in the wiring grooves, temperature detection probes are connected to the exterior of the transmission line at equal intervals, a cable core is arranged in the cable body, a communicating pipe is arranged in the outer side of the cable core, filling layers are arranged in the outer side of the communicating pipe and theouter side of the cable core, and a guide plate is welded to the outer side of a protection ring. According to the easy-to-lay anti-freezing heat-resistant cable for municipal construction and the matched cable bracket, an existing cable structure is improved, so that rapid cooling and anti-freezing protection can be carried out on the cable, and meanwhile, the cable with a special structure canbe directly fixed.

The invention provides a pulling device of a sewing machine, which can make the sewing machine run stably at high speed. In the pulling device (100) with the clutch sleeve (53a, 53b) and the spacer (54) of the built-in one-way overrunning clutch, on the opposite end faces of the clutch sleeve (53a) and the spacer (54), respectively Two first thrust plates (56a, 56b) made of phosphor bronze are provided, and one second thrust plate (57) made of steel is provided between the two first thrust plates. Each first thrust plate is respectively engaged with the opposite end surfaces of the clutch sleeve (53a) and the spacer member, and can rotate integrally with them in the direction around the axis. In addition, an oil supply path (55) is formed on the clutch sleeve (53a), and through holes are formed on each of the first thrust plate and the second thrust plate. Guide grooves (A, B, C) for guiding grease are provided on the end surface of the second thrust plate, and grease can be supplied from the oil supply path.

The invention belongs to the field of road surface detection, and particularly relates to a vehicle dynamic tire pressure acquisition system and method. According to the invention, a road condition is acquired through a vehicle provided with a road surface detection device, and the road surface condition is uploaded to a central server; and the road surface detection device is used for collecting tire pressure changes of a vehicle, vibration of a vehicle chassis suspension, a vehicle driving route and a vehicle driving posture so as to collect road surface information of vehicle driving. According to the invention, the adopted specific structure is simple, modification is convenient, the influence on the weight of the vehicle is small, and the modification cost is low. However, more perfect road surface information can be acquired in a mode different from a conventional road surface information acquisition method.

The invention relates to battery moving equipment and a battery moving method. The battery moving equipment comprises a conveying mechanism and a grabbing mechanism, wherein the conveying mechanism comprises a conveying unit, the conveying unit can do linear reciprocating motion, the grabbing mechanism comprises a driving air cylinder and a magnetic attraction part, a cylinder barrel of the driving air cylinder is fixed to the top face of the conveying unit, the axis direction is the same as the conveying direction of the conveying unit, and the cylinder barrel of the driving air cylinder can linearly reciprocate in the conveying direction of the conveying unit along with the conveying unit, the magnetic attraction part is fixed to the end part of a piston rod of the driving air cylinder and can be attracted to one end face of a battery, and after the magnetic attraction part is attracted to the battery, by driving of the piston rod of the driving air cylinder and the conveying unit, the battery is driven to move to the top face of the conveying unit or move out of the top face of the conveying unit. On the whole, the battery is moved in a dragging mode, compared with a hoisting mode, the operation difficulty of taking and placing is reduced, the stability of taking and placing operation is improved, and the phenomena of falling and self-dumping do not occur in the process that the battery is taken and placed.

The invention relates to a device and method for improving crosswind resistance of an aero-engine nacelle inlet. The device for improving the crosswind resistance of the aero-engine nacelle inlet comprises an air entraining port of a high-pressure air source, an air collection cavity, a guide pipe and an air injection hole, wherein the air entraining port of the high-pressure air source is arranged at the downstream position of a fan, the air collection cavity is located at the lip of the nacelle inlet, the guide pipe is used for leading high-pressure air into the air collection cavity, and the air injection hole communicates with the air collection cavity; a plurality of air injection holes are formed in the inner wall face of a windward side lip of the nacelle inlet and the edge of a lower edge lip of the inlet respectively; the air injection holes in the inner wall face of the windward side lip are constructed to inject airflow so as to increase the flowing speed of separated air masses on the inner wall face of the inlet; and the air injection holes in the edge of the lower edge lip of the inlet are constructed to inject airflow to block ground vortexes.

The invention relates to a structure preventing an instrument board from collapsing down. The structure preventing the instrument board from collapsing down comprises an instrument board body, and a plurality of reinforcing structures are arranged below the front edge of the instrument board body. The structure is characterized in that each reinforcing structures is formed by supporting ribs and a connecting rib connected at the lower ends of the supporting ribs. The supporting ribs are four polygons which are identical in shape and structure and are arranged with equal distance in parallel, and the connecting rib is in a rectangular plate shape. The upper portions and the front portions of the supporting ribs are connected with the instrument board body, and the lower portions of the supporting ribs protrude outwards and are connected with the connecting rib. The supporting ribs, the connecting rib and the instrument board body are integrally formed in an injection molding mode. The structure preventing the instrument board from collapsing down can improve the intensity and rigidity of the front edge of the instrument board, prevent the front edge of the instrument board from collapsing down, enable the front edge of the instrument board to have enough mounting points and to be located and connected reliably, and improve the quality of a whole vehicle.

The invention provides a car door anti-collision device with high safety. The car door anti-collision device comprises an anti-collision plate front joint, an anti-collision plate body and an anti-collision plate rear joint, wherein the anti-collision plate front joint and the anti-collision plate rear joint are fixedly mounted at the two ends of the anti-collision plate body respectively; the anti-collision plate body comprises a rectangular bottom plate, a V-shaped intermediate plate and a curved shell plate; the V-shaped intermediate plate is positioned on one side of the rectangular bottom plate, and the two ends of the V-shaped intermediate plate are fixedly connected with the two ends of the rectangular bottom plate; a triangular through hole is formed between the V-shaped intermediate plate and the rectangular bottom plate; the curved shell plate is positioned on one side, far away from the rectangular bottom plate, of the V-shaped intermediate plate, and the two ends of the curved shell plate are fixedly connected with the two ends of the V-shaped intermediate plate; the rectangular bottom plate, the V-shaped intermediate plate and the curved shell plate are the same on thickness. The car door anti-collision device can effectively improve the safety of the two sides of a car and has little influence on the weight of a car door.