32results about How to "Reduce R&D and manufacturing costs" patented technology

The invention provides a circuit and a method for detecting audio frequency, wherein the audio frequency detecting circuit comprises a waveform conversing module for converting the collected audio frequency sine wave signal into square wave signal, and a frequency detecting module for detecting the audio frequency according to the square wave signal. The audio frequency detecting circuit specifically comprises a counting sub-module for counting the pulse number of the square wave signal in the pre-set time and a calculating sub-module for calculating the audio frequency parameter according to the pre-set time and the pulse number. The circuit and method for detecting audio frequency can improve the use efficiency of CPU, reduce manufacturing cost, shorten the research and development period and improve the test speed and efficiency.

The invention relates to a vehicle body opening / closing piece and a connecting method thereof, wherein the opening / closing piece comprises at least one external part, at least one internal part and at least one connecting piece; the connecting piece is in a shape of an arch bridge, and one end of the connecting piece is fixedly connected with one end of the external part via an overlapping way while the other end of the connecting piece is fixedly connected with the external part via an elastic piece; and the connecting piece is fixedly connected with the top or side part of the internal part. When a new vehicle model is developed, even if the external part is changed, the structure form of the connecting piece can be changed to ensure that the internal part is not adjusted, and the specified connection mode ensures that the external part, the connecting piece and the internal part form a reliable whole so as to form a new opening / closing piece structure. The invention has the beneficial effects that: by the vehicle body opening / closing piece in the invention, a new vehicle model can be developed on the premise that only the external part is replaced and the internal part is unchanged so as to bring great convenience to the same platform serialization vehicle model development. The invention can reduce the research development and manufacturing cost of the whole vehicle, shorten the development cycle, improve the development quality, reduce the investment risk and enhance the market competitive power.

The invention relates to the technical field of environmental chemistry monitoring, in particular to a seawater multiparameter sensor based on a full-wavelength spectrum method. The seawater multiparameter sensor comprises a housing, wherein a filtering unit, a pressure reduction unit, a temperature-salinity monitoring and controlling unit, a detection unit, a waste liquid tank and a power supply. The seawater multiparameter sensor based on the full-wavelength spectrum method applies a single detector to achieve the multiparameter detection purpose based on spectrum detection. Due to the fact that multiparameter detection is achieved by adopting the spectrum method, most of devices are shared, the overall energy consumption can be reduced, the underwater operating time can be prolonged, the cruising power is improved, and possibility is provided for system integration. By adopting the design, the seawater multiparameter sensor is integrated in the same double-layer pressure-resistant cabin, normal work of the multiparameter sensor under the deep sea condition can be ensured, the operation that a titanium alloy coated sensor housing is designed for a single sensor is also avoided, and the cost is effectively reduced.

The invention provides a UAV charging device, including a UAV charging positioning mechanism and a charging coil launching platform; the UAV charging and positioning mechanism includes a charging platform transmission device, a bottom plate, a UAV landing plate and a positioning device; The charging platform transmission device includes a front and rear transmission device and a left and right transmission device, and the positioning device includes a left and right positioning device and a front and rear positioning device; after the UAV of the present invention locates the base station by GPS, it lands on the UAV landing area. The interactive mode of the human-machine charging and positioning mechanism can accurately dock with the charging coil launch platform. The docking method is simple and efficient. The R&D and manufacturing costs of the base station and the corresponding module of the drone are low, reducing the dependence of the drone on sensors.

The invention discloses an anti-fouling license plate installation device for off-road vehicles. The anti-fouling license plate installation device comprises a license plate installation box, a license plate box cover, a cycle cleaning assembly, a motor drive assembly, a mud scraping plate and a tension structure. The front side of the license plate installation box is detachably covered with thelicense plate box cover, a license plate body is installed in the middle of an inner cavity of the license plate installation box, and the motor drive assembly is located on the right side of the license plate body. The license plate body and the motor drive assembly are arranged in an inner cavity of the cycle cleaning assembly, the cyclic cleaning assembly is installed in the license plate installation box, the tension structure is installed on the left side wall of the license plate installation box, and the mud scraping plate is arranged on the license plate box cover. According to the anti-fouling license plate installation device for the off-road vehicles and a use method of the anti-fouling license plate installation device, the license plate body can be well protected; it is guaranteed that an internal transmission mechanism is not damaged caused by foreign object clamping and resisting; and complex sensors or control elements are not required to be used, the cost of device research, development and manufacture can be saved, and the failure rate of the device is reduced.

The invention provides a slurry dipping machine, which aims to solve the problems of low slurry utilization rate and high production cost of a shuttering dipping method by adopting a traditional drum scraper type slurry dipping machine. The slurry dipping machine comprises a slurry drum, a rotary driving device and a scraper, wherein the slurry drum is rotatablely installed on a base, the rotary driving device is installed in the base, the power output end of the rotary driving device is connected to the bottom of the slurry drum, and the scraper is installed in the slurry drum by virtue of a pillar. The slurry dipping machine is characterized by further comprising an insert block, wherein the insert block is removably installed in the slurry drum, and a mold cavity is formed in the insert block and is used for containing a to-be-dipped shuttering.

The invention discloses a design method of an axial-flow-type high-power density water jet propulsion pump, and belongs to the technical field of impeller machinery. The implementation method comprises the steps that after the performance of a power machine, the performance of a water jet propulsion system and the mutual influence of the water jet propulsion system and a carrier are comprehensively considered and main parameters of the water jet propulsion system are selected, an equal-head flow increasing method is adopted for determining a design working condition point of the water jet propulsion pump; the circulation distribution of the water jet propulsion pump is determined according to the lift line theory, the shape of the section of each blade is selected, the initial shape of each blade is determined, the final arched surface shape meeting the boundary conditions of the object plane of the arched surface of each blade is determined according to a lift surface method, shapingof the blades of the axial-flow-type water jet propulsion pump is completed, and the design of the high-power density water jet propulsion pump is achieved. By means of the method, the design accuracyof the design working condition point can be further improved, and the development cost of a new model is reduced; the design can be applied to the field of amphibious vehicles and ships to solve related engineering problems.

The invention belongs to the field of heat dissipating devices, and provides a liquid-cooled heat dissipating device. The liquid-cooled heat dissipating device comprises a heat conducting plate used for being connected with a heat source and a copper plate, wherein a mounting groove is formed in the upper end of the heat conducting plate; and the copper plate is arranged in the mounting groove, the lower end of the copper plate is provided with a heating conducting surface which is attached to the inner end surface of the mounting groove tightly, a liquid inlet surface and a liquid outlet surface are arranged at the two ends of the copper plate correspondingly and both are oblique tangent surfaces, a plurality of micro channels used for circulating of coolants are arranged in the copper plate, one ends of the micro channels are cut into lotus-type liquid inlets by the liquid inlet surface, and the other ends of the micro channels are cut into lotus-type liquid outlets by the liquid outlet surfaces. Compared with the prior art, the liquid-cooled heat dissipating device has the advantages that the structure is simple, and the development and manufacturing cost is low; and the areas of the liquid inlets and the liquid outlets of the micro channels are increased, so that the volume of the coolants passing through the micro channels is increased, and the cooling effect is greatly improved.

The invention discloses a dual-unit cube satellite platform which comprises a main force bearing mechanism, a windward face battery array, a leeward face battery array, a sky-facing face battery array, a ground-facing face battery array, a first unfolded battery array, a second unfolded battery array and a circuit module sets. In the cube satellite flight direction, the windward face battery array is arranged on the windward face of the main force bearing mechanism, the leeward face battery array is arranged on the leeward face of the main force bearing mechanism, the sky-facing face battery array is arranged on the sky-facing face of the main force bearing mechanism, the ground-facing face battery array is arranged on the ground-facing face of the main force bearing mechanism, the first unfolded battery array and the second unfolded battery array are arranged on the other two faces of the main force bearing mechanism, and the circuit module sets are fixed in the main force bearing mechanism. The dual-unit cube satellite platform has the remarkable advantages of being low in mass, small in size, low in cost, short in research period, high in functional density, wide in application range and the like.

The invention belongs to the technical field of washing machines, and in particular relates to an outer tub of a washing machine and a washing machine. An outer tub of a washing machine, the upper part of which is provided with an overflow port, wherein, the inner wall of the outer tub of the washing machine is provided with a water retaining rib located below the overflow port, and the water retaining rib extends from bottom to top to cover the overflow port correspondingly, and the overflow port and the water retaining rib There is an overflow gap between them. The outer barrel of the washing machine of the present invention can not only avoid the accidental overflow of the water flow to the outside of the washing machine, but also is safe and reliable. Moreover, it is suitable for washing machines with spray washing function, does not need to re-open new molds, and reduces R&D and manufacturing costs. In particular, it is helpful to improve the effect of spray washing, the washing effect of clothes is better, and the application prospect is good.

The invention discloses a vehicle B-pillar fracture test method and system, and relates to the field of vehicle safety. The method includes creating a vehicle collision simulation model and performing vehicle collision simulation to obtain the target intrusion amount of the B-pillar; The actual installation form in the car, design a test bench for crash test on the B-pillar, and create a B-pillar collision simulation model based on the designed test bench; perform collision simulation in the B-pillar collision simulation model, and adjust the collision speed , until the intrusion amount of the B-pillar in the collision simulation is equal to the target intrusion amount, and the collision speed at this time is taken as the target speed; the B-pillar to be tested is fixed on the designed test bench, and the trolley is driven to adopt the target speed for the test B The collision test is carried out on the pillar, and the deformation of the B-pillar to be tested during the entire collision test process is recorded at the same time. The present invention can effectively save vehicle R&D and manufacturing costs, and can also effectively improve the efficiency of B-pillar fracture investigation, saving time and effort.

The invention discloses a pressure control valve for an oil sprayer. The pressure control valve comprises an armature, a solenoid valve element, an oil sprayer intermediate, an electromagnet and a solenoid valve spring, wherein the armature is connected with the solenoid valve element; the solenoid valve element is connected with the oil sprayer intermediate in a sliding manner; the solenoid valve spring is arranged in a central hole of the electromagnet and is connected with the solenoid valve element; oil containing circular grooves and high-pressure oil inlets which are communicated with the oil containing circular grooves are formed in the solenoid valve element; a low-pressure oil return hole and a static oil drainage hole which are communicated with each other are formed in the oil sprayer intermediate; a control cavity is formed by the solenoid valve element and the oil sprayer intermediate; and the solenoid valve element slides vertically in the oil sprayer intermediate under the joint effect of solenoid force, solenoid valve spring force and hydraulic force, and the closing or opening of the high-pressure oil inlets and the low-pressure oil return hole is controlled, so that the aim of adjusting the change of hydraulic force in the control cavity is achieved. According to the pressure control valve, during an oil spraying process, no high-pressure fuel oil flows back to a fuel oil tank through the oil inlets, the oil outlet and a solenoid valve of the control cavity, so that unnecessary high-pressure fuel oil waste is avoided; and the spraying response speed of the oil sprayer is improved.

The system includes some exclusive-or gates. Number of input end of each exclusive-or gate is equal to number of metal layers. Each input end of each exclusive-or gate is corresponding to each metal layer, and then each input end is connected to electrical source or ground of corresponding metal layer. An output of each exclusive-or gate represents one bit of binary number. All outputs from exclusive-or gates constitute string in binary to represent ID code of chip. The invention also discloses method for configuring ID code of chip. Advantages are: changing ID code of chip by minimal change made for chip, and lowering cost. The invention is suitable to chip in structure of multiple metal layers, and applicable to procedure for designing and manufacturing IC.

The invention provides a high-precision fixture and method for measuring the lithium-embedded impedance of the negative pole piece of a lithium-ion battery, including a sealed cabin device, a lithium piece interface leveling and fixing device, an electrode spacing adjustment device, and a pole piece fixing device to be tested; The sealed cabin device is used to ensure that the measurement environment is in an anhydrous and oxygen-free environment; the lithium sheet interface is flat and the fixing device is used to install the lithium sheet reference electrode, and through the upper flat thread, the lithium sheet surface is flat to ensure the electrode spacing Keep consistent and smooth the surface while using high pressure to ensure good contact between the lithium sheet and the electrode fixing device; the electrode spacing adjustment device adjusts the interface spacing between the reference electrode and the tested electrode according to the interface flatness of the tested electrode, Ensure that the pole spacing between different groups remains consistent; the pole piece fixing device to be tested uses microporous negative pressure to fix the pole piece to be tested to ensure good contact between the current collector of the pole piece and the lead wire. The method for measuring the high-precision impedance of the lithium battery negative pole piece according to the present invention can quickly evaluate the impedance of the negative electrode formula between different groups, can significantly reduce the group screening time and evaluation costs, improve the economic benefits of the enterprise, and is beneficial to a wide range of applications. The application in production has great practical significance in production.

The invention discloses an MOS structure trench diode device and a manufacturing method thereof. The MOS structure trench diode device comprises a silicon substrate and an epitaxial layer which are sequentially arranged from bottom to top, wherein a primitive cell trench, a primitive cell large trench, an extension trench and a cut-off trench which are sequentially arranged are formed in the epitaxial layer; the inner side walls of the primitive cell trench, the primitive cell large trench, the extension trench and the cut-off trench are sequentially provided with a silicon dioxide outer layerand a polycrystalline silicon filling layer; a gate oxide layer is arranged in an area between two adjacent primitive cell grooves on the epitaxial layer, and a polycrystalline silicon layer is arranged above the gate oxide layer; first doped regions and second doped regions are arranged on the left sides and the right sides of the tops of the primitive cell groove, the primitive cell large groove, the extension groove and the cut-off groove; third doped regions are arranged on the left side and the right side of the top of the primitive cell groove and the side, close to the primitive cell groove, of the primitive cell large groove. The device also includes a first metal layer and a second metal layer arranged on the left side and the right side. By introducing the voltage division and electric field shielding effects of the trench MOS, the performance of the device is improved, and the application field is broadened.