32results about How to "No need to increase manufacturing costs" patented technology

The invention can automatically tunes the volume of playing sound signal to meet a volume weaken condition and includes the follow steps: when the signal meets the sound volume weaken condition, after tuning down the sound volume, the media signals are played again; when the signal doesn't meet the volume weaken condition, the current signal is directly played; deciding if the played signal meets the condition of continuing play; if yes, then returning to the initial state of the program, and then deciding if the signal still meets the sound volume weaken condition.

The invention discloses a hydraulic system, a pressure control method of the hydraulic system, and an engineering machine. The hydraulic system comprises an electronically controlled variable displacement pump, a pressure detector and a controller. The pressure detector is used for detecting pressure of an outlet of the electronically controlled variable displacement pump. The controller is connected with the electronically controlled variable displacement pump and the pressure detector and is used for controlling currents of the electronically controlled variable displacement pump when the pressure of the outlet cannot reach the preset pressure so as to change the displacement and lead the pressure of the outlet to reach the preset pressure. By adopting the hydraulic system and the pressure control method of the hydraulic system, system power can be saved, impact to the system is avoided, meanwhile the pressure of the system is kept constant, and no additional production cost needs to be added.

The invention discloses a bitumen concrete feeding device and a method for heating bitumen concrete. First directly feeding the high-temperature tail gas discharged by the internal-combustion engine of the construction device for building bitumen road into the inner space of said bitumen concrete feeding device, to contact the bitumen concrete, then heating the bitumen concrete feeding device and the bitumen concrete. The invention has simple structure, easy installment, simple operation and lower cost.

The prevent invention provides an integrated circuit structure, including a first workpiece selected from the group consisting of a semiconductor chip and a package substrate, wherein the first workpiece includes a plurality of first under bump metallurgies (UBMs) distributed on a major surface of the work piece; and a plurality of first metal bumps, with each of the plurality of first metal bumps directly over, and electrically connected to, one of the plurality of UBMs. The plurality of UBMs and the plurality of metal bumps are allocated with an overlay offset, with at least some of the plurality of UBMs being misaligned with the respective overlying ones of the plurality of metal bumps. The integrated circuit structure has advantages of eliminating non-alignment of bumps on the semiconductor chip and the package substrate without addition of manufacture cost by only a measuring step where residual steps are performed by a step exposing machine automatically.

The embodiment of the invention discloses automobile air conditioner diagnosis method, system and equipment. The method comprises the steps of judging whether refrigerant concentration of an automobile air conditioner is normal or not; judging whether an environmental temperature is normal or not; judging whether a first node pressure value in an automobile air conditioner refrigerant loop is normal or not; judging whether a second node pressure value in the automobile air conditioner refrigerant loop is normal or not; judging whether an air outlet temperature of the automobile air conditioneris normal or not; judging whether refrigerant transmittance of the automobile air conditioner is normal or not; and diagnosing the automobile air conditioner according to a judgment result. The automobile diagnosis method provided by the embodiment of the invention is low in influence of artificial experience, rapid in diagnosis speed and high in accuracy, and the automobile diagnosis method is simpler and more convenient during process systematization application.

The invention discloses a lead-in and limiting mechanism for a vehicle-carried container of an unmanned aerial vehicle. The lead-in and limiting mechanism comprises a lead-in strip arranged on the side wall of the farm chemical loading container, and a limiting groove is formed in the lead-in strip; and a lead-in structure is mounted on a machine body and can make contact with the lead-in strip and move along with the farm chemical loading container to make the lead-in structure be clamped in the limiting groove after the farm chemical loading container is inserted into the machine body. According to the lead-in and limiting mechanism for the vehicle-carried container of the unmanned aerial vehicle, the mechanism design is simplified, the anti-retreating and limiting functions are added onthe basis of the lead-in structure, redesigning the mechanism is not required, the occupied space is reduced, the manufacturing cost is reduced, the structural design is simplified, and meanwhile, the assembling convenience is promoted; the wedge-shaped lead-in outline of the side wall of a farm chemical box is fused with a box body to increase the strength of the side wall; idlers wheels can bemade of rubber, silicone and other soft materials, so that the damping function is achieved to realize intensity adjusting when the farm chemical box is leaded in, and abrasion of the wall of the container is reduced; and on the other hand, after loading is finished, the rubber idler wheels are in a compression state and can limit shaking of the farm chemical box and promote the limiting effect.

The invention provides a railway sleeper capable of being heated which comprises a sleeper body, a heating carrier, a control power source and a temperature sensor. The sleeper body is made of a fiber cement composite. The fiber cement composite comprises, by weight, 55% to 65% of fiber materials. The heating carrier is arranged on the sleeper body, installed on the upper side of the sleeper body and connected with the control power source. A heating circuit is arranged in the heating carrier. The temperature sensor is further arranged on the sleeper body. According to the railway sleeper, the safety running level of a train is increased, it is guaranteed that the train is not threatened by freezing and snowing disasters, the transportation efficiency of a railway is improved, the railway sleeper can save more energy and is environmentally friendly, and a contribution to protection of ecological resource balance is made.

A multi-roller rolling mill for eliminating the rolled tracing on plate or band material is composed of a machine frame and upper and lower tower-shaped roller trains. Said machine frame consists of front panel with discharge opening, back plate with feeding opening, top plate and bottom plate. The backing rollers, upper roller seat and lower roller seat are vertically arranged. A pressing down unit is arranged between said top plate and upper roller seat. A regulator is arranged between said bottom plate and lower roller seat. Said backing rollers are staggered.

The invention provides a nitrogen cylinder structure capable of prolonging the service lifetime. The nitrogen cylinder structure comprises a piston rod, a fixed part, a moving part, a nitrogen cylinder body, an isolation protection block, a protection sleeve and a sealing device, the moving part is arranged at the upper end of the piston rod, the piston rod is arranged in the nitrogen cylinder body, the sealing device is arranged at the inner sides of the piston rod and the nitrogen cylinder body, the fixed part is arranged at the outer side of the moving part, and the nitrogen cylinder body is connected with the fixed part through the isolation protection block. According to the structure, the goals of reducing abrasion of the sealing device and the piston rod and prolonging the service lifetime of the nitrogen cylinder can be achieved.

The invention discloses a dehumidification control system of an air conditioner. The dehumidification control system comprises an indoor heat exchanger, a first one-way electromagnetic valve, an outdoor heat exchanger, a second throttling valve set, a second one-way electromagnetic valve, an air conditioner compressor, a four-way valve, a controller and a silicon controlled rectifier, wherein theindoor heat exchanger further comprises a first indoor heat exchanger body, a second indoor heat exchanger body and a first throttling valve used for throttling, and the controller is used for controlling the air conditioner to enter different dehumidification modes and detecting the indoor environment temperature; and the rotating speed of an outdoor fan is adjusted according to the indoor environment temperature, so that the coil pipe temperature of the indoor heat exchanger correspondingly meets preset user comfort conditions under the different dehumidification modes. The embodiment of theinvention further provides the air conditioner, the purposes of dehumidification and but not cooling are achieved, and the multiple different dehumidification modes can be set to meet different use environments.

The invention relates to the field of chip wafer-level packaging, in particular to wafer-level packaging of a micro electro mechanical system chip which is easily influenced by packaging stress and a related manufacturing process of the wafer-level packaging. The wafer level packaging structure comprises a substrate and a cover plate, the substrate is a micro electro mechanical system chip to be packaged, and a concave part is formed on the cover plate. The cover plate and the substrate are bonded to form a sealed cavity, and the substrate in the cavity is provided with a micro-electro-mechanical element. The cover plate can be divided into a plurality of mutually insulated elastic electric pins through scribing. The bottom of the electric pin is smaller than the top of the electric pin, and the electric pin is of a mushroom-shaped structure and has the function of releasing packaging stress. The wafer level package can reduce the packaging stress, thereby improving the performance of the micro electro mechanical system chip. In addition, the wafer-level packaged micro-electro-mechanical system chip is smaller in size and low in packaging cost, meets the requirement of flip ball bonding, and is favorable for improving the integration level of the micro-electro-mechanical system.

The invention discloses a stator assembly for an eddy current retarder, the stator assembly being used for increasing the torque without an increase on the height of the eddy current retarder. The stator assembly includes a plurality of magnetic poles fixed to a stator disc. Each magnetic pole is formed by a pole column and a coil that is wound around the outer side of the pole column. The magnetic poles include a first magnetic pole group and a second magnetic pole group. The first magnetic pole group is positioned in a first circumference that takes the center of the eddy current retarder as a center of circle. The second magnetic pole group is positioned in a second circumference that takes the center of the compact eddy current retarder as a center of circle. The radius of the first circumference is smaller than that of the second circumference.

A simple burn-record method that is used for computer system that is with the function key and the compact disk driver. The computer system makes the data of the disk in the compact disk driver into the image file automatically and save it in the computer system. The computer system burn-record the image files automatically to the blank disk in the compact disk driver when the disk in the compact disk driver is replaced to a blank disk.