108results about How to "Reduce touch points" patented technology

The invention discloses a wireless earphone, a charging box and a wireless earphone charging system. The wireless earphone comprises: a charging port which is configured to access an earphone chargingvoltage and receive / transmit a communication signal; a communication switching circuit which comprises a first input / output end and a second input / output end, wherein the first input / output end is connected with the charging port, the communication switching circuit is switched to be in a closed state when earphone charging voltage is accessed to the charging port, and is switched to be in an open state when a communication signal is accessed to the charging port; a communication switch circuit which is connected with the second input / output end of the communication switch circuit; and an earphone control circuit which is configured to carry out boxing detection on the wireless earphone and generate a corresponding detection signal so as to control the communication switching circuit to connect / disconnect the earphone control circuit with / from the communication switching circuit according to the detection signal. According to the invention, reuse of charging and communication of the charging port is realized, and contact points between the wireless earphone and the charging box can be reduced.

The invention discloses a dioxin control method for the iron ore sintering garbage fly ash coprocessing process. According to the method, garbage fly ash, lime milk, flammable solid fuel and sludge are subject to mixed granulation and drying, and small balls containing garbage fly ash are obtained; iron core sintering raw materials are granulated and then are mixed with the small balls of the garbage fly ash, and after distribution, ignition and sintering are carried out. According to the method, on the premise that the iron ore sintering is not affected, efficient decomposing of dioxin contained in the fly ash can be achieved, dioxin secondarily formed in the garbage fly ash sintering process is prevented, according to the method, the decomposing rate of the garbage fly ash dioxin reaches 90% or above, meanwhile, effective solidifying of the garbage fly ash can be ensured, and in the sintering process, the aim of cleaning the garbage fly ash is achieved.

The invention relates to a high-conductivity and low-temperature cured conductive paste and a preparation method thereof. The high-conductivity and low-temperature cured conductive paste comprises conductive metal powder, a nanometer conductive carbon material, cured resin and a curing agent. The conductive paste is connected with the conductive metal powder by means of structure characteristic ofthe nanometer conductive material to form a three-dimensional continuous conductive passage, a material capable of being liquefied or sintered at a low temperature is utilized, a connection effect between the conductive metal powder and the nanometer conductive carbon material is improved, so that the resistivity of the conductive paste reaches microohms.cm scale and is approximate to that of a favorable conductor such as silver and copper.

An optimal design method of a low-wear high-speed train wheel profile is characterized in that a curve of the high-speed train wheel profile is divided via equal arc length, N discrete coordinate points are used as data points, and a wheel profile curve is reconfigured; vertical coordinates of N data apexes are used as design variables, a circuit average for reducing wheel wear consumption and wheel track transverse force are used as target functions, wheel profile wear statistics and concavity and continuity of the profile curve are used as geometric constraints, a high-speed train wheel profile multi-target optimization model is established, and the model is subjected to multi-target optimizing calculation. Results show that contact points of a rim portion of the profile and the side of a track are significantly reduced, and line average of each single wheel for low wear consumption is 26.8% lower than that of the original standard profile; the wheel track transverse force of the wheel is reduced; root-mean-square values of the wheel track transverse forces of left and right wheels are decreased by 17.6% and 18.3% respectively; root-mean-square values of maximum contact stresses of the left and right wheels are decreased by 21.6% and 19.8% respectively; root-mean-square values of derailment coefficients of the left and right wheels are decreased by 9.5% and 6.2% respectively.

The present invention relates to a new technological process of preventing refined salt from caking. Trace amount of potassium ferrocyanide is added into saturated refined salt solution of pH 7-9 to prepare material solution with potassium ferrocyanide content of 1.0-3.0 mg / L, and the solution is evaporated to concentrate in evaporating crystallizer in the evaporation strength of 0.2-0.4 kg water / hr.L while controlling the material slurry concentration in not higher than 10 vol%, so as to obtain refined salt without caking. The refined salt has potassium ferrocyanide content not higher than 10 mg / kg. The said process is obviously superior to traditional production process.

Continuous synthesis of glyphosate by dimethyl ester is carried out by taking paraformaldehyde, amino acetic acid and dimethyl ester as raw materials to obtain synthetic liquid, acidizing it with hydrochloric acid, mixing, entering into hydrolytic reactive zone, reacting in hydrolytic reactor continuously, acidizing synthetic liquid, hydrolyzing in hydrolytic reactive zone continuously, forming into glyphosate salt, batching continuously and neutralization crystallizing to obtain the final product. It realizes continuous hydrolysis and simplifies process and can be used in large-scale production.

The invention relates to a double-clad active optical fiber. Aiming at the defects in the prior art, the invention provides a realization method of an air gap clad optical fiber. The realization method adopts air as an optical cladding layer and adopts a core layer with a novel structure, so that the realization method can be used for improving an energy transmitting optical fiber or a photonic crystal optical fiber of an air cladding layer; the manufacturing process is simplified, the manufacturing cost is reduced and the pumping coupling efficiency is improved. The realization method is characterized in that the optical fiber is formed by a core layer with a polygonal section, the air cladding layer, an inner protection layer with a circular section, and an outer protection layer with a circular section in sequence from inside to outside; the core layer is connected with the inner wall of the inner protection layer with the circular section through the top of a polygonal structure; and an air gap between the inner protection layer and the core layer is the air cladding layer of the optical cladding layer. The double-clad active optical fiber solves the problem of low numerical pore diameters of the conventional high-energy transmission optical fiber and a double-clad optical fiber, and the high-temperature resistance of a low-refractive-index coating material, can improve the structure and the performance of the air cladding layer of the photonic crystal optical fiber, improves the optical fiber production efficiency, and greatly propels application of the optical fiber on the aspects of kilowatt and myriawatt high-energy transmission, a high-power laser system and the like.

The invention discloses a nano-scale insulation board and a manufacturing method thereof. The board body is manufactured by coating a thermal insulation material in a non-woven fabric and packaging the thermal insulation material in a packaging bag in a vacuum seal mode. The thermal insulation material comprises the following raw materials in percentage by weight: 70 to 80 percent of nano-scale fumed silica, 1 to 3 percent of reinforced fiber, 1 to 3 percent of far infrared additive, 12 to 18 percent of silicon carbide, 0.8 to 1.2 percent of drying agent and 5 to 10 percent of adhesive, wherein the heat conductivity coefficient is less than or equal to 0.008W / (m.K). Due to detection, the heat conductivity coefficient of the product is less than 0.008W / (m.K), the heat preservation and heat insulation performances are high, the product is light, the defects that the traditional wall heat preservation building materials have poor fireproof performance, poor heat preservation and heat insulation performances and low crack resistance can be overcome, and the nano-scale insulation board can be widely applied to heat preservation and heat insulation roofs of buildings, outer-wall external thermal insulation and outer-wall internal thermal insulation construction.

The invention relates to a compound type powder waterproof agent and a preparation method thereof. The compound type powder waterproof agent comprises raw materials of stearate, lignin, hydroxymethyl, calcium substances and silicon dioxide. The compound type powder waterproof agent disclosed by the invention is identical with cement in property and belongs to a rigid inorganic compound cement additive. The compactness and the impermeability of cement and cement mortar in which the compound type powder waterproof agent is added are greatly enhanced; and a three-dimensional water resistant mode is formed, and thus the waterproof effect is excellent and the strength of the concrete is improved by 20-30 percent.

The invention discloses a lithium ion battery pole piece and a preparation method therefor, and a lithium ion battery. A layer of isolating binder with a relatively low melting point is coated on the surface of a positive electrode or a negative electrode; when a positive pole piece and a negative pole piece are in contact, the isolating binder coatings are in contact, and a positive electrode active coating and a negative electrode active coating are not in contact; therefore, the positive electrode active coating and the negative electrode active coating have less contact points in a condition of an internal short circuit, so that the positive electrode active coating and the negative electrode active coating are not burnt immediately; in addition, the separating binder coating is melted to be covered on the surfaces of the pole pieces in a temperature-rising process caused by the internal short circuit, so as to effectively prevent reaction; and in addition, the coating is the binder with the lower melting point, the binder is melted with the increase of the temperature in the condition of external short circuit, and the melted binder can be effectively covered on the surfaces of the pole pieces to prevent from short circuit caused by the contact between the positive electrode and the negative electrode due to the diaphragm rupture.

The invention discloses a pneumatic conveying device for conveying laminar materials, which is mainly composed of a metering, air locking and blanking part and a part of conveying air into a kiln; the metering, air locking and blanking part comprises a buffer blanking bin, wherein the lower port of the buffer blanking bin is connected with a rotary blanking device; two kick-out devices arranged up and down are transversely arranged in the buffer blanking bin, and the axle centers of the two kick-out devices are respectively situated at the two sides of a central line in the buffer blanking bin; and comb-shaped material kick-out teeth are arranged on a rotating shaft of the kick-out device, and the comb-shaped material kicking teeth are staggered with each other. The part of conveying air into the kiln comprises a roots blower connected with an air conveying pipeline; the rotary blanking device of the metering, air locking and blanking part is connected with the air conveying pipeline through a blanking chute; and the other end of the air conveying pipeline is connected with a multi-passage combustor of a cement kiln precombustion furnace or a cement kiln front. The pneumatic conveying device for conveying laminar materials, disclosed by the invention, can effectively convey glass fiber reinforced plastic composite materials serving as cement to replace fuel.

The invention relates to the technical field of thermal insulation materials for aerospace, and provides a composite aerogel thermal insulation material as well as a preparation method and applicationthereof. The preparation method comprises the following steps: mixing SiO2 aerogel and Al2O3 aerogel, grinding, mixing the mixed powder with water, and carrying out thermocuring in a mold to obtain acomposite aerogel thermal insulation material, wherein the SiO2 aerogel and the Al2O3 aerogel are prepared by adopting an improved sol-gel method. By doping the Al2O3 aerogel with the SiO2 aerogel, contact points among Al2O3 aerogel particles are reduced, and surface / body diffusion is inhibited, so that high-temperature sintering and alpha conversion of Al2O3 are inhibited, and the purpose of improving the high-temperature resistance and the heat insulation performance of Al2O3 is achieved. When the composite aerogel thermal insulation material is used for thermal insulation, the external temperature of the thermal insulation material is lower than 200 DEG C under the conditions that the internal temperature is 1200 DEG C and the thickness of the thermal insulation material is 1 cm, and the aviation thermal insulation requirement can be met.

The invention relates to a flexible fabric keyboard which comprises a key layer, an upper function layer, an isolation layer, a lower function layer and a protection layer, wherein the key layer, the upper function layer, the isolation layer, the lower function layer and the protection layer are sequentially arranged from top to bottom; key symbols of the keyboard are marked on the surface of the key layer; open holes corresponding to the key symbols of the key layer are arranged on the isolation layer; and a single thread of upper spun conductive yarn and a single thread of lower spun conductive yarn are respectively arranged on the upper function layer and the lower function layer, each of the upper spun conductive yarn and the lower spun conductive yarn is of a structure in the shape of a Chinese character gong, the upper spun conductive yarn and the lower spun conductive yarn are in 90-degree warp and weft staggered and aligned arrangement, and staggered points are arranged in the positions corresponding to the open holes on the isolation layer. Each of the upper function layer and the lower function layer of the flexible fabric keyboard provided by the invention only has two points for being in contact with external signal interfaces, so that the points of the flexible fabric keyboard for being in contact with a computer, a mobile phone or other types of hardware are greatly reduced; and portability, foldability and full-fabric property are realized, and a way for developing the computer which can be worn on a human body is opened.

The invention discloses a technology for producing an electric-controlled valve. The technology for producing the electric-controlled valve comprises the steps that firstly, a valve body is manufactured, wherein cast parts are purchased, surfacing treatment is conducted after the cast parts are detected, then post-welding heat treatment is conducted on the cast parts, and the sealing surface of the valve body is ground; secondly, a valve clack and valve seat are manufactured, wherein raw materials are purchased, a workblank is manufactured after the raw materials are detected, ultrasonic flawdetection and surfacing operation are conducted on the workblank, the sealing surface is ground, and hardness detection is conducted on the sealing surface; thirdly, a valve rod is manufactured, wherein raw materials are purchased, the workblank is manufactured after the raw materials are detected, surfacing and post-surfacing heat treatment are conducted, fine machining is conducted on each portion, and the valve rod is put into a surface treatment system so that surface treatment can be conducted; fourthly, internal parts are manufactured, wherein raw materials are purchased, factory-entering detection is conducted on the raw materials, a workblank is manufactured with the raw materials, rough machining is conducted on the ultrasonic flaw detection surface, and finish machining is conducted on each portion; fifthly, fastening parts are manufactured, wherein raw materials are purchased, the raw materials are made into a workblank after being detected, a sample is taken and detected, finish machining is conducted after rough machining is conducted, and then spectrum detection is conducted; and sixthly, final assembly is conducted.

The invention discloses an earphone control method, which is applied to an earphone box. The earphone box is provided with a first electric contact. When the state of the first electric contact is a charging state, the first electric contact is used for charging the earphone; and when the state of the first electric contact is a communication state, the first electric contact is used for establishing communication connection between the earphone box and the earphone. The control method comprises the steps: when the state of the first electric contact is the charging state and the earphone boxdetects that a communication requirement exists between the earphone box and the earphone, the level value of the first electric contact is adjusted so as to send out a preset signal to the earphone through the first electric contact; and when a response signal fed back by the earphone based on the preset signal is received, the state of the first electric contact is switched to the communicationstate. The invention further discloses an earphone box, an earphone and a computer readable storage medium. The stability of the TWS true wireless stereo headphone is improved.

The invention provides moisture-absorbing quick-drying fabric and a preparation method thereof. The fabric comprises a hydrophilic inner layer and a quick-drying outer layer, wherein the hydrophilic inner layer is composed of bottom yarn, the quick-drying outer layer is composed of surface yarn, the bottom yarn is combed cotton yarn or twisted yarn of the combed cotton yarn and polyester filamentyarn, the surface yarn is special-shaped superfine denier polyester filament yarn, and the D value and the F value in specification of the bottom yarn are both larger than those in specification of the surface yarn. The preparation method of the fabric comprises the steps that the bottom yarn and the surface yarn are woven into gray fabric, and then after-treatment is carried out on the fabric toobtain the moisture-absorbing and quick-drying fabric; wherein the fabric after-treatment comprises alkali treatment and softening treatment; alkali treatment conditions are as follows: a 1wt.%-2wt.%sodium hydroxide solution is adopted, the bath ratio is 1:50, and the treatment is carried out at 90-100 DEG C for 30-40 minutes; softening treatment conditions are as follows: a silicon-free softening finishing agent is adopted, dipping is performed for 20-30 min at the temperature of 20-30 DEG C, then drying is performed for 3-4 min at the temperature of 100 DEG C, and finally baking is performed for 1-2 min at the temperature of 170-180 DEG C. The fabric has excellent moisture-absorbing and quick-drying properties and good durability.

The invention provides a circuit device and a drawer type circuit breaker. The breaker comprises a drawer type frame and a circuit breaker main body, wherein a current loop is arranged on the circuit breaker main body; the current loop comprises an incoming terminal chuck, an incoming terminal chuck bracket, a circuit module in the breaker main body, an incoming terminal contact pad, an outgoing terminal chuck, an outgoing terminal chuck bracket and an outgoing terminal contact pad; the incoming terminal chuck bracket and the outgoing terminal chuck bracket are respectively mounted on the incoming terminal contact pad and the outgoing terminal contact pad, and connected with the circuit module in the circuit breaker main body through the corresponding contact pads; and the incoming terminal chuck and the outgoing terminal chuck are respectively mounted on the incoming terminal chuck bracket and the outgoing terminal chuck bracket. The client terminals and plugs are saved; the length of the circuit is reduced; the contact points are reduced, so that the size of the product is reduced; and the power consumption and the consumption of copper and silver are also reduced.

The invention relates to a DC motor and a carbon brush thereof. The DC motor comprises a rotor and a stator, wherein the rotor comprises a rotation shaft and a commutator which is fixed on the rotation shaft, the stator comprises at least a pair of carbon brushes, the carbon brush comprises a contact surface which is used for being contacted with an arc surface of the commutator, the contact surface is of a V shape in the direction which is parallel to the axis of the rotation shaft, and the contact surface is inclined relatively to the axis direction of the rotation shaft, so the initial contact between the contact surface and the arc surface of the commutator is of the point contact, the fluctuation of the motor current can be improved, and the vibration source can be conveniently reduced so as to realize the noise reduction; and moreover, the contact points between the carbon brush and the commutator can be reduced so as to increase dBA difference value between a fundamental wave and a harmonic wave, so the speed of the motor can be calculated without a Hall element.

The present disclosure provides a terminal housing and a terminal and belongs to the terminal technical field. The terminal housing comprises a lower all-metal shell and an upper non-metal shell; theouter edge of the upper non-metal shell is wrapped with a metal frame; a first gap is left between the first side border of the metal frame and the side edge of the lower all-metal shell; the upper non-metal shell is provided with a vertical metal line; the first end of the vertical metal line is a grounding point; the second end of the vertical metal line is connected with the top border of the metal frame; and a portion between the first end of the vertical metal line and the upper edge of the first gap forms a first antenna stub; a second antenna stub of a bend line structure is disposed between the first side border and the vertical metal line; and one end of the second antenna stub is a feed point. According to the terminal housing and the terminal of the invention, the gap is formedat the side border of the terminal housing; the metal frame is adopted as a part of the antenna of the terminal; the antenna is designed to be of a bend line structure, so that a space occupied by theantenna can be decreased; and the limited clearance zone of the terminal can be utilized to design the antenna.

The present invention relates to a packing layer (10) for regulating the packing. The packing layer is provided with ripples, wherein a plurality of open channels (12, 14, 16) are formed by the ripples, wherein the channels comprises a first wave trough (22), a first wave peak (32) and a second wave peak (42). The first wave peak (32) and the second wave peak (42) define the first wave trough (22), wherein the first wave peak and the second wave peak have a first peak (33) and a second peak (43). The first peak (33) of the first wave peak (32) is provided with an insulation element (34) which extends in the direction of the first peak (33). The first wave trough (22) is provided with a trough base (23), wherein the insulation component (34) is provided with an edge (35). Compared with the first peak (33) of the first peak (32), a larger vertical distance is provided between the edge (35) and the trough base (23) of the wave trough (22).

The invention discloses a biconical vena cava filter system for temporary use. A filter main body includes three parts, namely a filtering portion, a fixing portion and tail fibers, wherein the filtering portion is represented as a conical spring structure; the fixing portion is a conical spring structure; and the filtering portion and the fixing portion follow smooth connection by virtue of a memory alloy wire. The filter main body is formed by implementing heat treatment setting on a memory alloy wire on a special mold; a round ball is fixed to a circle of spring, which has the largest diameter, in conical springs of the filtering portion and a round ball is fixed to a circle of spring, which has the largest diameter, in conical springs of the fixing portion. The filter (the filter system) further comprises a threaded connecting component and an extension wire. With the adoption of a biconical structure, the filter can achieve smooth release and recovery, and contact points of the filter with a vascular wall are reduced; the filter, which is fixedly located within the inferior vena cava in a double-layer and multi-spherical-point mode, can prevent injury of blood vessels as well as hyperplasia and climbing of endangium; and the filter, even being implanted for a long time, can be smoothly withdrawn.

A yarn break switch for a nylon zipper stitching machine comprises a fixing plate, a yarn passing board mounted on the fixing plate, at least one induction block, a fixing bar and a conductive bar, wherein at least one yarn inlet hole is formed in one side of the yarn passing board, at least one yarn outlet hole is formed in the other side, a fixed end of the induction block is rotatablly arranged on the fixing bar in a sleeving manner, and yarn arranging holes are formed in a free end of the induction block, and are located below the yarn inlet hole and the yarn outlet hole; the conductive bar is located below the induction block; yarn passes through the yarn inlet hole, the yarn arranging holes and the yarn outlet hole in sequence to be fed and conveyed, when the yarn is broken, the induction block falls by own gravity, and abuts against the conductive bar, so that the fixing bar and the conductive bar are electrically connected. The yarn break switch can detect whether the yarn (which can be subdivided into bottom yarn and upper yarn) in production of the nylon stitching machine is broken constantly, and stopping can be performed timely in case of yarn breaking; therefore, accuracy is high, and product quality is stabilized.

The invention discloses a channel cooling section platinum body installation positioning device. A lower jacking device is arranged on a channel guide rail; through puller screws which are arranged insymmetrical and disposed on an upper split frock clamp device, a platinum body which is to be fixed is clamped and left and right adjustment of the platinum body is achieved; the upper split frock clamp device is provided with screw mechanism at two sides; with application of the lower jacking device, fine adjustment of height of the platinum body in vertical direction can be achieved. Therefore,when the refractory material is mounted onto the platinum body, direction of the platinum body can be adjusted effectively by means of the upper split frock clamp device and the lower jacking device;under action of locking, the platinum body is prevented from shifting and is fixed stably in the process of installing other refractory material in the later period. The channel cooling section platinum body installation positioning device is simple in structure, convenient and rapid to use, can adjust installation angel of the platinum body in one step, and accordingly can guarantee installationprecision and speed of the platinum body.

The present invention discloses farmland irrigation and drainage mechanical equipment including a special-shaped irrigation and drainage walking assembly, a filtration-type circulating water suction assembly and a telescopic moving tank, wherein the special-shaped irrigation and drainage walking assembly includes a special-shaped front traveling wheel, a rear traveling wheel, a driving motor, a driving gear, a driven gear, a transmission gear, a special-shaped driving gear, a fixed flat plate and a support frame. The farmland irrigation and drainage mechanical equipment belongs to the technical field of farmland irrigation and in particular relates to the farmland irrigation and drainage mechanical equipment which is few in contact points with the ground and crops in a traveling process and capable of easily traveling on a farmland and reducing the self-weight on the premise of guaranteeing a favorable supporting force so as to reduce damage to the crops; a controller determines to pump water in the farmland or drain water in a water tank into the farmland according to a water level signal sent by a liquid level sensor, so that the water is recycled, and an appropriate water levelsituation in the farmland may be kept; and a spring is disposed in a supporting tank body and is sleeved and connected with a telescopic rod so as to play a buffering role in the traveling process.

An air blocking net and spring piece assembly comprises one or more air blocking net fixing frames, one or more spring pieces and one or more air blocking net fixing supports. The rear ends of the airblocking net fixing frames and the air blocking net fixing supports are rotatably connected together; each air blocking net fixing frame is provided with one or more clamping-connection grooves, thespring pieces are connected into the clamping-connection grooves in a clamped mode and each comprise one or more spring contact arcs and one or more spring sliding arcs; and each spring contact arc abuts against a guiding rail, and the spring sliding arcs always slide in the air blocking net fixing frames.