56results about How to "With shielding function" patented technology

The invention discloses an insulating fireproof radiation-resistant shielded cable material and a preparation method thereof. The insulating fireproof radiation-resistant shielded cable material is prepared from EPDM, ethylene-vinyl acetate copolymer, polyvinyl chloride, phenol-formaldehyde resin, polydimethylsiloxane, glass fiber, plasticizer, a vulcanizing agent, a coupling agent, an anti-aging agent, a stabilizing agent, a flame retardant and an antioxidant. Raw materials are compounded according to a ratio and then poured into a high-speed mixer to be mixed; after the raw materials are evenly mixed, the raw materials are poured into a twin-screw extruder to undergo melt extrusion, and air-cooled granulation is performed. All ingredients of the cable material have respective independent effects and advantages and are also matched with each other to form a whole, so that the cable material is insulating, fireproof and resistant to radiation, has a shielding function and is excellent in performance. Moreover, the raw material cost is low, and thus the product cost is low. A manufacturing process is simple.

The invention relates to a modified hollow microsphere and application thereof. A hollow microsphere serving as a carrier is subjected to roughening pretreatment, and then proper metal oxide is selected to modify the hollow microsphere in a chemical precipitation way, and the modified hollow microsphere is mixed with a proper organic coating to prepare a composite coating with an infrared ray shielding function. Therefore, the aims of stealth compatibility with visible light and reduction in infrared emission of a coating can be fulfilled.

The invention discloses a connector provided with a reinforced shielding shell. The connector comprises a guide pin, a connector module, a shell and a connecting piece. The guide pin is provided with steps; the connector module is provided with a lug boss and a groove; the shell is provided with a convex rib, a convex hull, a lifting lug and step holes; the connector module is inserted in the shell; the lug boss is clamped with the convex rib of the shell; the groove is contacted with the convex hull of the shell; the screw rod end of the guide pin permeates into the step holes of the shell; and the steps of the guide pin are matched with the step holes and are fastened by connecting pieces. According to the connector provided with the reinforced shielding shell, the shell is arranged outside the connector module and is positioned and fixed by the guide pin. Therefore, the connector module is connected exactly, steadily and reliably and has a shielding function. The connector provided with the reinforced shielding shell, disclosed by the invention, is mainly applied to an electromagnetic interference sensitive environment and to the electric control system having relatively high requirements on vibration resistance and impact resistance.

The invention relates to a window, in particular to a fireproof shielding window for a ship. The fireproof shielding window comprises a window frame and a window leaf. The window leaf contains the window frame. A frame and the window frame are connected detachably. Glass is arranged in the frame. The fireproof shielding window for ship is characterized in that the glass is fireproof shielding glass. A pressing plate is arranged on the outer side of the glass. The periphery of the pressing plate is connected with the frame. The periphery of the inner side face of the glass and the outer side face of the window frame are in seal fit. The periphery of the outer side face of the glass and the inner side face off the pressing plate are in seal fit. The fireproof shielding window is small in occupied space, simple in installation process and low in manufacturing cost.

To simply realize fixing of cores and countermeasures against noises in an inductance element.The inductance element is mounted to a wiring board. A pair of cores 3, 4 are fitted into a coil bobbin 2, to which a winding is formed. The cores are clipped with a fixing metal fitting 5 made of metals and incorporated. The fixing metal fitting 5 has a shielding function and functions as a shield, to interrupt leakage magnetic fluxes of the inductance element. Also, since a terminal part for fixing to the wiring board 7 is provided to the fixing metal fitting 5, mounting state is reinforced.

The invention relates to a control method of a centralized power supply type electric impedance imaging electrode system. The electrode system comprises a plurality of electrode units, wherein each electrode unit comprises a signal electrode, a power supply electrode, a wireless communication module, a power supply module, a signal control module, a high-pass filter, a signal excitation and measurement unit. The control method of each electrode unit comprises the following steps that the signal control module of the electrode unit controls the switching of a excitation state and a measurementstate of the signal electrode according to a received external wireless signal; a signal excitation and measurement module generates a high-frequency signal under an excited state of the electrode unit, and transmits the high-frequency signal to the signal electrode through the high-pass filter, so that the signal electrode is in an excitation state; and the signal electrode is in a measurement state under a measurement state of the electrode unit, high-frequency excitation signals of the other electrodes is transmitted to the signal electrode through an in-tube conducting medium, and is inputted to the signal excitation and measurement module though the high-pass filter to obtain a measurement result.

A water-heating and water-cooling dual-purpose electric blanket comprises an upper blanket surface, a lower blanket surface, a heating layer, a temperature sensor, a temperature monitoring module, a refrigerating device, a switch and sealing pins. The heating layer comprises a surface layer, an inner layer and an interlayer, the interlayer is provided with a heating pipe in which a heating wire is arranged, and a shielding wire is wound around the heating wire; the outer wall of the heating pipe is made of an insulating material, the heating pipe is sleeved with a sleeve pipe with a cavity reserved between the heating pipe and the sleeve pipe, and the cavity is filled with heat transfer liquid; the two ends of the sleeve pipe are connected with three-way pieces in an insertion mode respectively, the other two joints of each three-way piece are connected with an extension pipe and a tightening cap respectively, the two ends of the heating pipe are plugged by the sealing pins, and the tightening caps are in screw connection with the sealing pins through threads; the extension pipes are connected with the refrigerating device; the heating wire is led out from the sealing pins and connected with a power line, and a circuit breaker is arranged on the power line; the temperature sensor is arranged on the heating layer and connected to the temperature monitoring module through a wire, and the temperature monitoring module is connected with the switch; the switch is connected with an external power supply through a plug. The water-heating and water-cooling dual-purpose electric blanket can perform refrigerating or heating selectively and is safer to use.

The invention discloses a reinforced high-power optical fibre composite control cable. The reinforced high-power optical fibre composite control cable comprises an inner conductor centre reinforced core, a buffer layer, an inner hollow conductor, an insulation layer, an outer conductor and an outer sheath from inside to outside; and bearing metal wires and conductive single wires of the outer conductor same in number are wound at intervals and then combined with one optical fibre unit and one control insulation wire core, such that the outer conductor is formed. The reinforced high-power optical fibre composite control cable disclosed by the invention is high in self-bearing reinforcement performance, low in attenuation and good in shielding effect and has the effects of transferring and controlling signals simultaneously.

The invention relates to the technical field of coatings and in particular relates to an environment-friendly polyurethane waterproof coating and a preparation method thereof. The environment-friendly polyurethane waterproof coating comprises components A and B. The component A comprises the following substances in parts by weight: 20-30 parts of polyether glycol, 30-50 parts of polyether triol, 3-6 parts of montmorillonite, 3-6 parts of nano silicon dioxide and 4-7 parts of methylbenzene-2,4-diisocyanate; the component B comprises the following substances in parts by weight: 6-8 parts of water, 0.5-1 part of a dispersant, 8-12 parts of petroleum fraction oil, 3-6 parts of calcium hydroxide, 3-6 parts of talc powder, 3-6 parts of light calcium carbonate and 0.3-0.6 part of a plasticizer. By taking water or other diamines and polyhydric alcohol as a curing agent, the coating does not contain volatile organic compounds, so that the coating is harmless to the environment and has excellent mechanical properties and anti-ageing property.

The invention relates to an information module with a shielding function in a network system, which comprises a base, a socket and a line pressing cover, wherein the socket is arranged on the base; the line pressing cover is arranged between the base and the socket; a through hole is arranged in the line pressing cover; a branching rib is arranged on the through hole and divides the through hole into two sub through holes; and data cables are respectively arranged in the two sub through holes in a penetrating manner and are connected with a socket. The information module with the shielding function is adopted, the branching rib on the through hole divides the through hole into the two sub through holes, and the data cables are respectively arranged in the two sub through holes in the penetrating manner, so that a space between each two cables is ensured, the crosstalk of signals is avoided; when the information module with the shielding function is arranged, the performances of the information module with the shielding function cannot be affected by a construction technology or a construction environment, and the signal transmission quality and the overall performance of the information module are ensured; and the information module with the shielding function in the network system has a simple structure and broader application range and is low in cost.

A sanitary urinal comprises a urinal body, a water feeding tube and a water draining tube, wherein the urinal body has a side opening groove structure; the top of the urinal body is connected with the water feeding tube; the bottom of the urinal body is connected with the water draining tube; a protecting door is movably arranged at the position of a side opening of the urinal body; a connection position of the protecting door and a groove opening of the urinal body is sealed by a push type elastic lock; a storage box which faces the groove opening is fixed on the outside of the protecting door; and a water valve is arranged on a portion, which is connected with the urinal body, of the water feeding tube. The sanitary urinal has the advantages of exquisite structure, convenience in use and the like.

The invention discloses a capacitive voltage transformer. The capacitive voltage transformer comprises a capacitance voltage division assembly and an electromagnetic unit, the capacitance voltage division assembly comprises a one-stage or multi-stage stacked column, which is a coupling capacitor, and the coupling capacitor includes: an upper cover plate, a lower cover plate, an insulating sleeve,a capacitor core, a mouse cage electrode, a volume adapting device, a high-voltage lead and a low-voltage lead, a medium-voltage lead and a lead terminal are also arranged on a lowermost coupling capacitor, the low-voltage lead of the lowermost coupling capacitor is led out through a low-voltage lead-out pipe arranged in the lead terminal, the medium-voltage lead of the lowermost coupling capacitor is led out through a medium-voltage lead-out column arranged in the lead terminal, and the medium-voltage lead-out column penetrates out of the low-voltage lead-out pipe and is coaxial with the low-voltage lead-out pipe. The capacitive voltage transformer provided by the invention has the advantages of good insulation performance, small partial discharge capacity, excellent sealing performance,reliable performance, high mechanical strength, small product height, long operation life, stable and reliable operation and the like.

The invention provides a thin film and a preparation method thereof. The thin film comprises a metal thin film layer, a conductive pressure-sensitive adhesive tape, a phase-change heat-conducting adhesive and an insulating adhesive tape, the conductive pressure-sensitive adhesive tape comprises a pressure-sensitive adhesive, conductive cloth, conductive filling powder, a crosslinking aid, a leveling agent, an anti-settling agent and a diluting solvent, the phase-change heat-conducting adhesive comprises paraffin, a high polymer material, heat-conducting filling powder, a coupling agent and thediluting solvent. An upper cover of a traditional shielding case is replaced by the thin film, the thickness can be reduced to 20 microns, the thin film becomes lighter and thinner, the copper foil is coated with the phase-change heat-conducting glue, so that the thin film has an excellent heat-conducting function, and the thin film has a shielding function.

The invention discloses a self-bearing anti-tension optical fiber composite cable. The cable comprises an inner conductor, an insulating layer, a shielding layer, an outer conductor and an outer sheath from inside to outside. The inner conductor is formed by stranding of a central bearing core and a plurality of inner conductor conductive single wires which surround the bearing core with the bearing core serving as a circular center; a metal anti-tension pipe is arranged between the insulating layer and the shielding layer. The outer conductor is formed in such a manner that a plurality of anti-tension metal wires are parallelly wound and then are combined with at least one optical fiber unit. The integral cable is of a total-symmetric structure, is high in self-bearing and anti-tension performance, is good in pressing resistance, moisture prevention and sealing performance, is low in attenuation, is good is shielding effect and simultaneously has signal transmission and control effects, so that the unicity of a conventional cable is changed.

The invention discloses a self-bearing compression-resistant type coaxial cable. The self-bearing compression-resistant type coaxial cable comprises an inner conductor, an insulating layer, an outer conductor, a buffer layer and an outer sheath from inside to outside, wherein the inner conductor is formed by a bearing core positioned in the center of the inner conductor and a plurality of inner conductor conductive single wires that take the bearing core as the center of a circle and surround the bearing core in a twisting mode; the outer conductor is formed by a plurality of outer conductor conductive single wires that are twisted in parallel; a metal compression-resistant tube is arranged between the buffer layer and the outer sheath; the outer sheath is further provided with a single wire convex ridge; and the height of the single wire convex ridge is not less than 0.5 mm and the width of the single wire convex ridge is not less than 1 mm. The overall cable adopts a full-symmetrical structure; copper wires and zinc plated steel wires have shielding functions; the inner conductor and the outer conductor are in the concentric position; and the electromagnetic energy is limited to being transmitted in a medium between the inner conductor and the outer conductor, so that the cable is low in attenuation and good in shielding property. Compared with the prior art, a new reinforcing structure is not added; and the cable is simple in structure, relatively small in outer diameter, and convenient to lay.

The invention discloses a compound audio-frequency control cable for locomotives, comprising a voice control cable and two power supply control cables which are wound into a round shape by a winding belt, and a whole shielding layer and an outer sheath are sequentially wrapped outside the winding belt, and a drainage lead is arranged between the winding belt and the whole shielding layer. The compound audio-frequency control cable is particularly suitable for the transmission and signal control of the audio-frequency digital signal inside the locomotives. The main technology of the compound audio-frequency control cable adopts a novel material and a novel structure and overcomes the disadvantages of prior cable such as easy to break, no tension, no torsional strength and single function, and the strength of the whole cable is improved and the using function of the cable is increased. The compound audio-frequency control cable has the advantages of multiple functions, good shielding performance, tensile strength, torsional strength and durable performance, etc.

The invention discloses a PET (Polyethylene Terephthalate) composite film structure. The PET composite film structure comprises a PET highly-transparent film, wherein one surface of the PET highly-transparent film is attached with a PET release film layer by a coloring layer, and the other surface of the PET highly-transparent film is attached with a first non-woven fabric layer; one surface, separated from the PET highly-transparent film, of the first non-woven fabric layer is attached with a conducting layer, a second non-woven fabric layer, a copper-wire shielding layer and a protective layer in sequence from inside to outside; the thickness of the protective layer is 0.25-3mm. The PET composite film structure provided by the invention has the beneficial effects that with arrangement ofthe coloring layer, convenience is brought for coloring and printing; the shape is displayed by the PET highly-transparent film with good transparency; the PET release film layer facilitates detachment; the non-woven fabric layer plays a certain role in protection to buffer acting force on the PET composite film structure, and has the functions of conduction, electric shielding and fireproofing,and the thickness of the protective layer is in a certain range, so that the service life of the PET composite film structure is prolonged; the structure is simple and the application prospect is wide.

The invention discloses a self-bearing tensile high-power coaxial composite cable. The self-bearing tensile high-power coaxial composite cable comprises an inner conductor center bearing core, a first buffer layer, a tubular inner conductor, an insulating layer, a second buffer layer, an outer conductor and an outer sheath from the inside to the outside, wherein a metal conductive tube is arranged between the insulating layer and the second buffer layer; the outer conductor is formed by twisting a plurality of tensile metal wires in parallel and then combining with at least one control insulating wire core; a single-wire ridge is also arranged on the outer sheath; and the height of the single-wire ridge is not smaller than 0.5 mm and the width is not smaller than 1 mm. The self-bearing tensile high-power coaxial composite cable has high self-bearing capability, tensile property and pressure resistance, small attenuation and good shielding effect, and simultaneously can play the signal transmission and control roles.

The invention discloses a self-bearing anti-compression large power coaxial composite cable, which comprises an internal conductor center bearing core, a first buffer layer, a tubular internal conductor, an insulating layer, an outer conductor, a second buffer layer and an oversheath from inside to outside; the outer conductor comprises multiple outer conductor conductive wires that are winded at intervals and then combined with at least one control insulation core; a metal anti-compression pipe is installed between the second buffer layer and the oversheath; a single conductor wire protruding ridge is installed on the oversheath; the height of the single conductor wire protruding ridge is not less than 0.5mm and the width not less than 1mm. The integral body of the cable is fully symmetrical; copper wires and galvanizing steel wires have shielding functions; the inner conductor and the outer conductor are in concentric position; the electromagnetic energy is limited in a medium between the inner conductor and the outer conductor for propagation, therefore, the attenuation is small and the shielding property is high.

The invention discloses a high strength silicate concrete having shielding function, which comprises the following components by weight: 100 parts of cement, 50 parts of water, 50-60 parts of sodium silicate, 20-25 parts of alga mud, 15-19 parts of powdered carbon, 12-15 parts of quicklime, 10-15 parts of germanium oxide, 10-15 parts of zirconia, 5-8 parts of silicon dioxide, 4-6 parts of borax and 0.5-2 parts of calcium carbonate. According to the high strength silicate concrete having shielding function, based on the silicate concrete, borax, powdered carbon and alga mud are added, after adding germanium oxide and zirconia, the compressive strength and stretch-proofing strength of the concrete are not reduced, and the compressive strength is increased. With addition of mass germanium oxide and zirconia as well as silica synergism, electromagnetic wave of various wave band can be effectively shielded, and the application field of the concrete is developed.