36results about How to "Prevent electrical breakdown" patented technology

The invention discloses a crude oil emulsion fluid electrostatic coalescer. The crude oil emulsion fluid electrostatic coalesce comprises a barrel which is of a cylindrical structure, wherein a grounding terminal inlet pipeline and an outlet pipeline are arranged on the outer side surface of the barrel; the two ends of the barrel are connected with an insulating end enclosure and end surface sealing covers; cable introducing holes which are used for introducing high/low-voltage cables and are connected with multiple high/low-voltage electrodes in the barrel are formed in the two end surface sealing covers respectively; a low-voltage electrode is arranged on an axis, and a high-voltage electrode is wound outside the axis in a concentric manner, and the high-voltage electrode is closest to the barrel housing; a plurality of foldout supporting plates for guiding the crude oil emulsion fluid and supporting high/low-voltage electrodes are arranged on the inner part of the barrel. The crude oil emulsion fluid electrostatic coalesce has the advantages of being compact in structure, small in floor space and convenient to dismount, is suitable for an oil-water separating process on the sea and improving original oil-water separating equipment; uneven electric fields are introduced to achieve good coalescence effect on uncharged liquid drops in the emulsion fluid with low moisture content, which is difficult to treat by dipole coalescence and electrophoresis coalescence through normal electric dehydrating equipment, so that the treatment capacity of electrostatic coalescence equipment is strengthened.

The invention relates to a electric distribution apparatus comprising a circuit breaker device or interrupting device which is named as a first device, and an electric isolation device named as a second device. The first device and the second device are connected in parallel and occupying open and closed positions of a switching device. The two electric devices may use a first position and a second position. The opening and closing of the first and the second electric devices are controlled by the first electric device. When the switching device is moved from the closing position to the opening position, the contact of the isolation device is firstly opened. Arc and arc voltage generate between contacts so that current is switched to the breaker device or interrupting device. before the contact of the breaker device or interrupting device is opened, the contacts are open till the ample gap generates between contacts of the isolation device. Therefore, after contacts of two devices are closed, when transient recovery voltage is established, any subsequent dielectric breakdown at the position of the isolation device is prevented.

The invention relates to the technical field of integrated circuit interconnection dielectric materials, and in particular, relates to a high-thermal-conductivity and high-insulation thermoplastic resin composition as well as a preparation method and an application thereof. The invention discloses the preparation method of the high-thermal-conductivity and high-insulation thermoplastic resin composition. The preparation method comprises the following steps: (1) preparation of carboxyl-terminated polysiloxane modified epoxy resin; (2) preparation of dendritic three-dimensional graphene oxide; and (3) preparation of the high-thermal-conductivity and high-insulation thermoplastic resin composition: adding the dendritic three-dimensional graphene oxide into the carboxyl-terminated polysiloxanemodified epoxy resin, and mixing and stirring to obtain the high-thermal-conductivity and high-insulation thermoplastic resin composition. The invention aims to provide the preparation method of thehigh-thermal-conductivity and high-insulation thermoplastic resin composition; the resin composition prepared by the preparation method has high thermal conductivity and high insulation, the thermal conductivity coefficient can be adjusted according to a formula, and the resin composition has good thermal conductivity, excellent insulation performance, and wide application range.

When ion beam 14 is irradiated onto a substrate 2 to conduct processing such as ion injection, plasma 30 emitted from a plasma generating device 20 is supplied to a portion close to the substrate 2 to suppress electric charging on a substrate surface caused by ion beam irradiation. A ratio of IE/IB is kept at a value not lower than 1.8, a ratio of II /IE is kept at a value not lower than 0.07 and not higher than 0.7, wherein IB is an electric current of the ion beam 14 irradiated onto the substrate 2, II is an ion current expressing a quantity of ions in the plasma 30 emitted from the plasma generating device 20, and IE is an electron current expressing a quantity of electrons in the plasma 30.

The invention relates to a pair of rubber dipping type insulation gloves and a manufacture method thereof. A dipping liquor comprises the following raw materials in parts by weight: natural rubber, zinc oxide, sulphur, an accelerant, an anti-aging agent, stearic acid and light calcium carbonate. The manufacture method comprises the steps: dissolving plastified rubber and the raw materials into liquid after being conventionally mixed; performing dipping for multiple times in the liquor according to a certain speed by using a glove model through dipping equipment, and drying after dipping; and sulfurizing according to a designed temperature, pressure and time; finally, testing a voltage, verifying and packaging. The pair of rubber dipping type insulation gloves has the advantages of attractive appearance, good cold resistance, good water repellency, good insulation, safety and reliability, and accords with the requirement of IEC60903 (International Electrotechnical Commission).

The invention relates to a multifunctional multilayer insulated wire, which comprises a copper lead, a bonding layer, an insulating layer, a flame-retardant layer and a protecting layer, wherein the bonding layer is coated outside the copper lead, the insulating layer is covered outside the bonding layer, the flame-retardant layer is covered outside the insulating layer, and the protecting layer is covered outside the flame-retardant layer. The insulated wire can be widely used in the high-frequency wires of power supplies and transformers.

The invention provides a semiconductor device comprising a substrate having a first region and second regions, the first region being located between two adjacent second regions; two sub drain regions located in the first region of the substrate; a dummy structure positioned on the substrate between the two adjacent sub drain regions; a source region located in the second region of the substrate; a gate structure positioned on the substrate between the first region and the second regions. The ESD capacity of the device is improved through the dummy structure, an SAB photomask in the prior art is not needed, a new technological process does not need to be introduced, and the dummy structure can be directly and synchronously formed in the manufacturing process, so that the manufacturing cost of the device is reduced.

The invention relates to a horn antenna which comprises a feed source and a horn and is characterized in that multiple metamaterial media layers are filled in the horn, each metamaterial media layer has the same dielectric constant, the multiple metamaterial media layers have different dielectric constants, and each metamaterial media layer is composed of a plurality of metamaterial units. The horn antenna is simple in structure, low in manufacture price, high in gains, good in directionality, strong in pressure resistance, free of electric breakdown, small in structure, light in weight and flexible.

The invention provides an integrated circuit testing method including (1) providing an integrated circuit testing structure; (2) testing a single trench isolation structure for a first dielectric parameter; (3) testing a single semiconductor device for a second dielectric parameter; (4) testing adjacent single trench isolation structures and the single semiconductor device for a third dielectric parameter; and (5) comparing the first, second and third dielectric parameters and evaluating the single trench isolation structure.

The invention relates to a piezo-electrical actuator module (2) in particular for fuel injection valves of fuel injection systems for internal combustion engines, comprising an actuator body (3) and at least one transition piece (4). The transition piece (4) has a contact surface (25). According to the invention, the actuator body (3) contacts the contact surface (25) of the transition piece (4) with an end face (26) on one end (28) of the actuator body (3). The transition piece (4) has a frame (6) which surrounds the contact surface (25). The frame (6) positions the actuator body (3) at the end (28) thereof on all sides on the contact surface (25). A reliable electrical contacting of outside electrodes (16) of the actuator body (3) is thus possible, since a relative movement between the actuator body (3) and the transition piece (4) is prevented. The invention additionally relates to a fuel injection valve (1) having such a piezo-electrical actuator module (2).

The invention relates to the technical field of microwave mode converters, and in particular relates to a high-power TE-TEM microwave mode converter which is used for solving the problems of insufficient power capacity and high manufacturing difficulty of a TE-TEM mode converter in the prior art. The high-power TE-TEM microwave mode converter comprises a central waveguide, a microwave feed-in waveguide, a microwave sliding circuit breaker, a coaxial output, a coaxial short-circuit surface and a coaxial inner conductor; the coaxial short-circuit surface comprises a centering ring installed in the coaxial inner conductor; a short-circuit surface outer conductor is installed on the centering ring; a coaxial downward-extending section is installed between the short-circuit surface outer conductor and the central waveguide; and a microwave choking coil which is not in contact with the coaxial inner conductor is installed between the coaxial downward-extending section and the short-circuit surface outer conductor. The coaxial downward extending section, the short-circuit surface outer conductor and the end face of the microwave choking coil are in contact, the electric conductivity is good, the sparking phenomenon is avoided, the power capacity of the converter can be improved, meanwhile, the converter can be divided into a plurality of parts during machining, and therefore the manufacturing difficulty is greatly reduced.