407results about How to "Shock resistance" patented technology

To suppress degradation of a transistor. A method for driving a liquid crystal display device has a first period and a second period. In the first period, a first transistor and a second transistor are alternately turned on and off repeatedly, and a third transistor and a fourth transistor are turned off. In the second period, the first transistor and the second transistor are turned off, and the third transistor and the fourth transistor are alternately turned on and off repeatedly. Accordingly, the time during which the transistor is on can be reduced, so that degradation of characteristics of the transistor can be suppressed.

The invention relates to a protective coating for aerogenerator vanes and a preparation method thereof, wherein the protective coating has the advantages of excellent ultraviolet radiation resistance, abrasion resistance, stain resistance, corrosion resistance, adhesive force and flexibility. The preparation method uses hydroxyl acrylate resin as a base material of the surface protective coating for the aerogenerator vanes and uses the mixture of HDI biuret and HDI tripolymer as a curing agent. The coating consists of a component A and a component B, wherein the component A comprises the following materials in portion by weight: 10 to 55 portions of the hydroxyl acrylate resin, 1 to 5 portions of abrasion resistant and stain resistant auxiliary agent, 0.2 to 0.4 portion of ultraviolet stabilizer, 10 to 15 portions of environment-friendly organic solvent, 15 to 20 portions of pigments and fillers, 2 to 5 portions of delustering agent, 0.15 to 0.55 portion of dispersing agent, 0.01 to 0.3 portion of drying agent, and 0.25 to 0.55 portion of levelling agent; the component B comprises 1 to 15 portions of the HDI biuret and 1 to 15 portions of the HDI tripolymer; and the mass ratio of the component A to the component B is 2-6:1. When in use, the components A and B are mixed and stirred evenly in proportion, and then the mixture is adjusted to proper viscosity for construction by using a spraying method.

It is an object to suppress deterioration in characteristics of a transistor in a driver cricuit. A driver circuit includes a first transistor, a second transistor including a gate and one of a source and a drain to which a second signal is inputted, a third transistor whose gate is electrically connected to one of a source and a drain of the first transistor and which controls whether a voltage state of an output signal is set or not by being turned on/off, and a fourth transistor whose gate is electrically connected to the other of the source and the drain of the second transistor and which controls whether a voltage state of an output signal is set or not by being turned on/off.

The invention discloses an indoor water-based ultrathin steel-structure fireproof coating and a preparation method thereof. The indoor water-based ultrathin steel-structure fireproof coating includes the following components: in weight percentage, 17-20% of tap water, 25-30% of water-based acrylic emulsion, 38-45% of expansion flame retardant system, 5-10% of waterproof filler, 0.4-0.6% of wetting dispersant A, 0.8-1,2% of wetting dispersant B, 4-6% of anti-freezing agent, 0.3-0.5% of defoamer, 1-2% of filming auxiliaries, 0.1-0.2% of pH (potential of hydrogen) regulator, 0.4-0.5% of flatting agent, 0.1-0.2% of thickener and 0.2-0.4% of anticorrosion and mildew-proof agent. The coating is free of any harmful substances such as organic solvent and heavy metal and the like and is environment-friendly, non-toxic, safe in storage and excellent in fireproof heat-insulation performance. Comprehensive performances of the coating can meet national standards and completely meet the application requirement of steel-structure fireproof protection.

The invention relates to a reinforced heat transfer tube. The heat transfer tube comprises an outer tube, a fixed rod and a helical belt, wherein the outer tube is a column-shaped hollow tube; the fixed rod is a solid metal bar; and the helical belt is welded on the fixed rod to form a plug-in element and be placed into the outer tube. Compared with the prior art, the invention has the advantages of favorable heat transfer effect, low manufacture difficulty, high finished product rate, more reliable structure and flexible application, reduces the volume in the tube by the fixed rod on the premise of not changing the heat exchange area of a heat exchange tube, can increase the specific surface area of the heat exchange tube and is beneficial to the heat exchange of the heat exchange tube.

The invention discloses a bulletproof flashboard and a preparation method and an application thereof. The preparation method of the bulletproof flashboard comprises the following steps of: bonding a protective layer, a ceramic layer, a middle layer, a supporting layer and a buffer layer which are coated with bonding agents in sequence; coating an outermost layer with a coating layer which is coated with a bonding agent; and molding under the negative pressure and curing. Due to the adoption of a novel structural design for the bulletproof flashboard, the entire bulletproof flashboard can effective resist the impact of bullets continuously shot by a light weapon without being broken. Moreover, the bulletproof flashboard has the characteristics of light weight, high bullet resistance, easiness in processing and the like.

The invention provides a non-stick pot and a manufacturing method for the same. The non-stick pot provided by the invention comprises a pot body, a grid body and a non-stick coating, wherein the grid body is embedded into or pressed into the inner surface of the pot body, ribs of the grid body is bulged out of the inner surface of the pot body, and the non-stick coating is sprayed to the inner surface of the pot body, and is filled into meshes of the grid body. By applying the technical scheme of the invention, a metal grid made from a base material different from the material of the pot body is embedded into the inner surface of the pot body, the ribs of the grid form ridges which play a supporting role, and the formed ridges have better toughness and wear-resistant performance, can resist the impact of an iron turner, so the wear-resistant performance and anti-scratch performance of the non-stick pot are improved.

The invention is a method and device for measuring the slope of a surface. The device includes a frame, one or more clear tubes containing a liquid and a gas bubble, and an attachment facilitating attachment to a sloped surface. The attachment may be a removable strap or magnets. The tubes are fixed at angles greater than zero degrees and less than ninety degrees relative to the bottom surface of the frame and a visual indication of the angle of each tube is present on the device. The device is designed to be placed parallel to the slope of a sloped surface and the slope of the surface can then be increased or decreased such that the gas bubble will become centered within the tube when the angle of slope conforms to a desired standard.

The invention provides a bidirectional tri-path turn-on high-voltage ESD (Electro-Static Discharge) protective device which can be used in an on-chip IC (Integrated Circuit) high-voltage ESD protective circuit. The bidirectional tri-path turn-on high-voltage ESD protective device comprises a P minus substrate, an N plus buried layer, a left N-type epitaxy, a right N-type epitaxy, a drifting area, a high-voltage P trap, a drain region, a source region, a polysilicon gate, a positive pole contact area and a negative pole contact area, wherein the drifting area, the high-voltage P trap, the drain region, the source region and the polysilicon gate form an NLDMOS (laterally diffused metal oxide semiconductor) structure, and the positive pole contact area, the N plus buried layer, the high-voltage P trap and the source region form a positive SCR (semiconductor control rectifier)structure, so that two high-voltage ESD current discharge paths are formed to improve secondary striking current of the device and reduce the turn-on resistance and trigger voltage; and the negative pole contact area, the left N-type epitaxy, the high-voltage P trap, the N plus buried layer and the drain region form a reverse SCR structure to form a reverse high-voltage ESD current discharge path. The current paths of the two SCR structures are longer, so that the maintaining voltage of the device can be improved, bidirectional discharge of ESD current can be realized, and the device has bidirectional ESD protection function.

An LED lamp includes a housing, a heat sink received in the housing, a plurality of LED modules thermally attached to the heat sink and a plurality of wire clips spanning over the heat sink and securing the heat sink on the housing. The heat sink includes a base and a plurality of fins extending from the base. Each of the clips includes a pivoting portion pivotally mounted on the housing, two locking portions located opposite to the pivoting portion and detachably engaging with the housing, and two pressing portions respectively interconnecting the pivoting portion with the two locking portions and abutting against the base.

An LED lamp includes a fixing rod, a first heat sink mounted to the fixing rod, a second heat sink mounted on the first heat sink, a plurality of LED modules attached on the second heat sink and a lamp cover engaging the first heat sink to enclose the second heat sink and the LED modules. The second heat sink includes a plurality of heat-conducting faces formed on a bottom end thereof and arranged at different levels. The LED modules are respectively attached on the heat-conducting faces of the second heat sink. The lamp cover includes a panel and a plurality of annular steps extending outwardly from the panel in sequence. Each annular step has a concave lens attached thereon. The annular steps are located corresponding to the LED modules of the second heat sink, respectively.

The invention discloses an LED light embedded art glass and a manufacture method for the art glass. The invention comprises a base layer, a middle layer and a covering layer. The base layer is a conductive glass and the conductive glass is provided with a conductive line and a power interface. An LED illuminant is arranged in the conductive line and is arranged according to the pattern and effect needed displaying. The middle layer is a PVB film arranged between the base layer and the covering layer. The base layer, the middle layer and the covering layer are agglutinated through the treatment of a high-pressure autoclave. The invention has the advantages of anti-explosion, endurance, attractive appearance, etc., and has a broad market prospect.

A radiation detecting cassette 1 includes a casing constituted by upper and lower shell halves 11, 12 and a frame 13 fixed therein; and a solid-state radiation detector 10 which is an image pickup device. Four corners of the solid-state radiation detector 10 are sandwiched by plate springs 41 and 42 both of which are fixed to the frame 13.

Disclosed are an automobile front anti-collision beam structure and application thereof to automobiles. The automobile front anti-collision beam structure is composed of a main beam, an inner plate and an energy absorbing device, wherein the inner plate is fixedly connected to the main beam; the energy absorbing device is fixedly connected to the inner plate and at least composed of a bottom plate, a first conical tube, a second conical tube and a third conical tube; the bottom ends of the first conical tube, the second conical tube and the third conical tube are fixedly mounted onto the bottom plate, and the first conical tube, the second conical tube and the third conical tube are gradually nested from inside to outside; the heights of the three conical tubes are gradually reduced from inside to outside, the diameters of the bottom ends of the three conical tubes are gradually increased from inside to outside, the thicknesses of the three conical tubes are gradually increased from inside to outside, and the tapers of the three conical tubes are gradually increased from inside to outside. According to the automobile front anti-collision beam, when collision deformation occurs, crumple of a single stage gradually develops into simultaneous crumple of two stages and then into simultaneous crumple of three stages, plastic deformation can be gradually increased, a regular and stable deformation mode and significant buffer effects can be achieved, and energy absorption can be gradually increased. Therefore, the automobile front anti-collision beam can enhance structural stability and crashworthiness and meanwhile improve the collision angle adaptability.

The invention relates to an energy dissipation and vibration reduction rolling rock shed-tunnel structure with an assembled lightweight steel structure, which belongs to the protective structure used in the existing engineers of roads, railways and the like to prevent for preventing the collapse rolling rock disease. The energy dissipation and vibration reduction rolling rock shed-tunnel structure comprises a rolling rock shed-tunnel frame, a concrete shed-tunnel plate arranged on the rolling rock shed-tunnel frame and energy dissipation and vibration reduction devices. Left and right vertical boards are welded between upper and down transverse boards to form each energy dissipation and vibration reduction device. The upper and down transverse boards are provided with holes for connecting bolts. A plurality of energy dissipation and vibration reduction devices are connected between the rolling rock shed-tunnel frame and the concrete shed-tunnel plate by the bolts. The energy dissipation and vibration reduction rolling rock shed-tunnel structure with the assembled lightweight steel structure has the characteristics of safety, high efficiency, economy and simple construction.

The invention discloses a method for reinforcing aeolian sandy soil by polypropylene fibers. The method comprises the following steps: selecting materials for preparing fiber aeolian sandy soil, wherein the length of the polypropylene fiber is 18mm, the mix ratio of the fiber is 0.3 percent, and the aeolian sandy soil materials are air-dried aeolian sand or aeolian sandy soil (the moisture content accounts for 11.2wt%); according to the proportioning scheme, closely and completely mixing fine TEXSOL with aeolian sandy soil particles by way of spraying, so that a composite three-dimensional spatial structure is formed by the TEXSOL and the aeolian sandy soil; and carrying out mechanical compaction on the composite fiber aeolian sandy soil subjected to spraying, wherein the compaction method and standard of the composite fiber aeolian sandy soil are same as those of common soil, so that the compaction density of the aeolian sandy soil reaches 100 percent of the standard compaction density, and the fiber aeolian sandy soil is compacted closely. By utilizing the method in earth-filled dams, retaining walls and the drainage works of the earth-filled dams, the water stability of the interior of the soil body can be effectively improved, the shearing strength and tensile strength of the soil body can be obviously improved, and the construction process is simple; and because the fiber content of the fiber aeolian sandy soil is very low, the method has the advantages of cheapness and environmental protection.

The disclosed actuator is applicable to relay, contactor, breaker, solenoid valve and electromagnet etc. Stable state is maintained through excitated actuation by pulse current, magnet, or snap spring, spring catch and spring etc. Thus, bi-directional pulse generating circuit, winding changing switch in prior art, or complicated bistable mechanism and spring of reverberatory force can be omitted, only one switch with unidirectional pulse being input is adopted so as to possess features of energy saving, antivibration, simple structure, easy of miniaturization, unease of wobble and long working travel. The actuator includes base, electromagnet and stable maintaining unit. Two stable places are located at two sides of action spot of largest magnetic attraction. Movable piece at one stable place can be changed to another stable place by pulse magnetic force of electric magnet.

The invention discloses a deepwater net cage with a front streamline floating pipe outer frame. The deepwater net cage comprises a floating pipe frame, netting and a mooring system, the floating pipe frame is provided with the front streamline floating pipe outer frame, the front streamline floating pipe outer frame is composed of a front connecting piece, two outwards-protruding arc-shaped main floating pipes, two bent pipe connecting pieces and a back main floating pipe, the front ends of the two outwards-protruding arc-shaped main floating pipes are connected through the front connecting piece, and the back ends of the two outwards-protruding arc-shaped main floating pipes are connected with the two ends of the back main floating pipe respectively through the two bent pipe connecting pieces; in addition, a box tying point is arranged on the front connecting piece. The mooring system comprises an anchor, an anchor rope and an anchor rope weight, the anchor is sunk into the seabed, the lower end of the anchor rope is connected with the anchor, the upper end of the anchor rope is connected with the box tying point, the anchor rope weight is tied and hung on the anchor rope, and the length of the part, located between a tying and hanging point of the anchor rope weight and the upper end of the anchor rope, of the anchor rope approximates the lowest water level water depth of the position of the anchor.