94results about How to "Shorten working life" patented technology

The invention discloses a backlight drive circuit, a driving method thereof and a liquid crystal device. The backlight drive circuit comprises a power module and a constant current driving chip, the power module comprises a first controllable switch, an adjustable load is connected between the first controllable switch and a backlight drive circuit grounding end, the adjustable load comprises a switching module capable of switching different resistance values, a control end of the switching module is coupled to a mode switch signal of the backlight drive circuit, and one end of the adjustable load, which is connected with the first controllable switch, is coupled to an over-current protection port of the constant current driving chip. According to the backlight drive circuit, the driving method thereof and the liquid crystal device, two and even more over-current protection (OCP) threshold values can be provided, and reliable over-current protection can be achieved whether in a 2 dimensional (2D) or 3 dimensional (3D) mode.

An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption α that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption α being defined as α=1−ρ−T, where ρ is the spectral reflectance and T is the spectral transmittance of the emitter.

A mouse with a screen saver control function is provided. The mouse includes a left button, a right button, a scroll button, a screen saver control button, a memory unit, and a micro-processing unit. The memory unit stores a simulation program. When receiving a signal from the screen saver control button, the micro-processing unit runs the simulation program of the memory unit, and generates simulated input signals to a computer connected thereto, and thus to prevent the computer from running a screen saver program. Utilizing the mouse, a computer user can control a screen saver of the computer momentarily, without resetting a duration of initiating the screen saver program. Therefore, the mouse is very convenient for the computer user to control the computer.

A soldering iron tip having a copper or copper alloy core and a metal particle sintered member connected to the core to transfer heat therefrom to form a working soldering tip. The sintered member can be manufactured by powder metallurgy from a base material (iron, nickel and/or cobalt particles) and an additive (silicon, copper, silver, tin, boron and/or carbon particles) where needed. The sintered member can be formed as a cap which is fitted onto the working tip with a silver paste sandwiched therebetween, a brazing filler metal ring is positioned between an abutment shoulder and the cap, flux applied to the joint and the cap brazed into place. A metal, cermet or ceramic coating sprayed on the outer surface of the core, except for the (masked) working tip end, is not wettable by solder. An Ag—Al—Cu alloy coating layer in the rearwardly-disposed cavity improves heat conduction from the heater therein.

A piercing nut element having a strength in the range between 700 and 900 MPa which is designed to be pressed into the sheet metal part. The nut element is characterized in that the self-piercing attachment of the nut element into a sheet metal part of higher strength, or into a sheet metal part with a thickness greater than 3.5 mm, the nut element is designed in such a way that the piercing section has a peripheral extending groove below the sheet metal contact surface and in that the piercing section has a piercing edge at its free end face with the piercing edge being spaced from the boundary of the groove adjacent to the piercing section by a peripheral surface having an axial height which corresponds to at least 30% and preferably to at least 50% of the sheet metal thickness, wherein the radial wall thickness of the piercing section in the region of its free end face from the outer side of the piercing section up to the nominal diameter of the thread corresponds to a thickness between 1.2 to 1.8 and preferably 1.5 times the intended sheet metal thickness.

Provided is a developing toner for electrostatic latent images capable of coping with the size reduction of an image forming apparatus and decrease of the consumption amount, not shortening the working life of a photoreceptor, less causing paper jam, background fogging, etc., excellent in various characteristics required for the toner, and capable of forming images of good picture quality. The developing toner being used when images are formed to a recording material in an image forming apparatus comprising an image forming station, a recording material feeding station, an image fixing station and a controlling station, the developing toner for electrostatic latent images containing hydrophobic fluidizing particles deposited to the surface of coloring resin particles comprising a binder resin containing a polyester resin, a polyalkylene, a polyolefin dispersant and a non-oxidized polyethylene resin, and an inorganic pigment, and having time constant τ of from 100 to 350 msec.

A copper complex titanium oxide dispersion liquid includes: titanium oxide particles; and 0.1 to 20 parts by mass of cuprous oxide particles per 100 parts by mass of the titanium oxide particles. The dispersion liquid further includes: 5 to 100 parts by mass of phosphate ester-based anionic surfactant per 100 parts by mass of the titanium oxide particles and the cuprous oxide particles combined; and 300 to 2000 parts by mass of an organic solvent per 100 parts by mass of the titanium oxide particles and the cuprous oxide particles combined. The titanium oxide particles and the cuprous oxide particles have an average primary particle diameter of 2 nm to 80 nm and have an average secondary particle diameter of 50 nm to 150 nm as measured by dynamic light scattering using cumulant analysis. Moreover, 10 or more parts by mass of the titanium oxide particles are contained in 100 parts by mass of non-volatile matter content of the copper complex titanium oxide dispersion liquid.

A hydrodynamic bearing assembly (10) includes a bearing sleeve (11) defining a receiving chamber (113) therein, a bearing (12) received in the receiving chamber of the bearing sleeve, a sealing cover (15) mounted to an open end (112) of the bearing sleeve and including an enlarged section (153) adjacent to the bearing, a shaft (13) extending through the sealing cover and rotatably disposed in the bearing, on which a plurality lubricant pressure generating grooves are defined, and a lubricant retaining space (117) defined by the enlarged section of the sealing cover, an end of the bearing and the shaft for receiving lubricant therein. One of the sealing cover and the shaft defines a groove (134) therein, while the other one of the sealing cover and the shaft extends a flange (156) into the groove.

The invention relates to a thunder-resisting temperature-controlling light-dimming LED (Light Emitting Diode) lamp which comprises three parts, namely a thunder-resisting rectifying circuit (100), a pulse generation circuit (200) and an LED assembly (300), wherein the thunder-resisting rectifying circuit (100) is a four-port network which is provided with a first input end (N1), a second input end (N2), a first output end (T1) and a second output end (T2); an AC (Alternate Current) voltage is accessed between the first input end (N1) and second input end (N2) of the thunder-resisting rectifying circuit (100); one end of the pulse generation circuit (200) is connected with the first output end (T1) of the thunder-resisting rectifying circuit (100), and the other end of the pulse generation circuit (200) is connected with the positive end of the LED assembly (300); and the second output end (T2) of the thunder-resisting rectifying circuit (100) and the negative end of the LED assembly (300) are both connected with an earth circuit (E).

The invention discloses a surge voltage resistant pulse-type driving power supply for an LED lamp. The driving power supply is provided with a rectifier bridge and a limiter circuit, wherein the limiter circuit is composed of a negative temperature coefficient (NTC) thermistor and a third monopole type transient voltage suppressor (TVS3); and the rectifier bridge is composed of a first bridge arm, a second bridge arm, a third bridge arm and a fourth bridge arm. Each of the first bridge arm and the second bridge arm is formed by a fourth rectifier diode (D4) and a third rectifier diode (D3); the third bridge arm is composed of a second rectifier diode (D2) and a second monopole type transient voltage suppressor (TVS2); and the fourth bridge arm is composed of a first rectifier diode (D1) and a first monopole type transient voltage suppressor (TVS1) whose negative poles are connected.

An electrical brush includes an electrically conductive base and a plurality of carbon nanotubes. The electrically conductive base has a contact surface. The carbon nanotubes are formed on the contact surface of the base and are configured for contacting with a rotary member. The method includes the steps of: providing an electrically conductive base having a contact surface; and forming a plurality of carbon nanotubes on the contact surface of the base. The electrical brush can be applied in various electrical machineries for efficiently collecting and transferring machine current over a long working period.

The invention discloses oxidation-resistant high energy density magnesium alloy for 500-600 degrees and a process thereof. The alloy comprises the following components by weight: Li: 2.0-3.0%, Al: 5.0-6.0%, In: 1.0-1.2%, Zn: 2.5-2.8%, B: 0.10.2%, Sn: 1.0-1.2%, Bi: 5.0-6.0%, Sb: 2.4-2.5% and the balance magnesium. A multi-element near-eutectic alloy solution for the oxidation-resistant high energydensity magnesium alloy for 500-600 degrees in the field of alloy energy storage is provided. Alloy melt has excellent oxidation resistance, thermal cycle performance and thermophysical performance. The alloy can effectively overcome the defect of innovation shortage of novel alloy materials in the field of energy storage, and is expected to obtain great market value while solving industrial problems.

The invention relates to a gearless cable lift with a drive disk mechanism which is dually wound by several bearer cables, comprising a counter disk (3), an elevator car (6), guide tracks for the elevator car (6) and a counter weight, especially for installation without a machine room. According to the invention, the bearer cables are guided in semicircular grooves and the ratio of the drive disk diameter to the nominal diameter of the bearing cables is <= 40.

This evaporation burner 10 for a heating apparatus comprises a support member 12 having an absorbing element 22 and a fuel supply pipe 18 for supplying liquid fuel to the absorbing element 22, and is operated by the liquid fuel. The absorbing element 22 is formed of a layer 24 made of ceramic material and layers 26 and 28 made of metal material.

The invention provides a method of processing an inner surface of a bearing having a cylindrical shape which bearing includes a resin layer composed mainly of a synthetic resin as the inner surface, the method improving roughness of the inner surface and dimensional accuracy of an inner diameter of the bearing without cutting the inner surface. According to the method, the bearing is press-fitted into a jig and then the jig is mounted on a chuck. Next, a mandrel having a cylindrical bar shape is inserted into an inner diameter portion of the bearing and then the mandrel is heated by a heater up to 250° C., for example. The mandrel is expanded due to thermal expansion by the heating so that the inner surface, i.e., a surface of the resin layer is pressed by a press face of a peripheral surface of the mandrel.

The invention discloses a high response neutron dose equivalent meter. The probe of the equivalent meter is selected from 3He counter tube, the length thereof is 95-110 centimeter, the diameter thereof is 5-6 centimeter, the air pressure thereof is 3-4 atmospheric pressure. At the same time, the cadmium absorber of probe is evenly drilled, wherein the hole area is 0.9-1 square centimeter, the hole area accounts for 30-40% of the whole cadmium slice area. The sensitivity of the neutron dose equivalent meter can be 48.9cps/uSv h-1 to satisfy the requirement of the detection of the environment level neutron radiation field.

The invention belongs to the technical field of air conditioner control, and discloses a defrosting control method, a defrosting control device, an air conditioner and computer equipment. The air conditioner heats continuously by rising the setting temperature. On the premise of maintaining the indoor temperature set by a user unchanged, the heat additionally absorbed from the outside through a refrigerant system in a heating mode is used for defrosting a frosted part of a heat exchanger in a centralized mode through a defrosting pipeline. The air flow of a defrosting pipe is subjected to closed-loop control through a valve, so that indoor temperature fluctuation is reduced to the minimum. According to the invention, the running states of an inner fan and an outer fan of the air conditioner can be maintained without switching refrigerating/heating modes, and the purpose of defrosting is achieved without shutdown. The service life of a four-way valve is prolonged, the operation stability of the air conditioner is improved, and the air conditioner comfort is not affected. The inner fan and the outer fan are defrosted without shutdown, the indoor temperature is not changed, and the comfort of the air conditioner is guaranteed to the maximum extent. Different from a traditional defrosting mode, the four-way valve does not need to the reversed frequently, so that the service life ofthe four-way valve is prolonged.

The invention discloses a closed oil supply system of a sectional material extruding machine, belongs to the field of sectional material molding equipment, and relates to an oil supply system of an extruding machine. The closed oil supply system comprises an oil cylinder and an oil storage tank, wherein the oil cylinder is provided with a prefill valve, the oil storage tank is divided into an oil return oil tank and a pressurization oil cylinder which are respectively sealed, and the oil return oil tank is connected with the oil cylinder by virtue of a backflow oil line connected to the oil cylinder; the oil return oil tank is connected with the pressurization oil cylinder by virtue of an oil supply pipeline, a circular oil line between the oil cylinder and the pressurization oil cylinder is formed by the backflow oil line, the oil return oil tank and the oil supply pipeline, and the pressurization oil cylinder is provided with a piston; by virtue of the reciprocating motion of piston, the oil in the pressurization oil cylinder is extruded in to the oil cylinder or the oil in the oil cylinder flows back into the pressurization oil cylinder by virtue of the circulation oil line, so that the sealed oil supply system of the extruding machine is formed. The oil supply system is in a sealed state, dust sundries and the like are prevented from being mixed into the oil supply system, the cleanness of hydraulic oil is kept, and the working life of the hydraulic oil is prolonged.