48 results about "Solenoidal coil" patented technology

A means for fabrication of solenoidal inductors integrated in a semiconductor chip is provided. The solenoidal coil is partially embedded in a deep well etched into the chip substrate. The non-embedded part of the coil is fabricated as part of the BEOL metallization layers. This allows for a large cross-sectional area of the solenoid turns, thus reducing the turn-to-turn capacitive coupling. Because the solenoidal coils of this invention have a large diameter cross-section, the coil can be made with a large inductance value and yet occupy a small area of the chip. The fabrication process includes etching of a deep cavity in the substrate after all the FEOL steps are completed; lining said cavity with a dielectric followed by fabrication of the part of the coil that will be embedded by deposition of a conductive material metal through a mask; deposition of dielectric and planarization of same by CMP. After planarization the fabrication of the remaining part of the solenoidal coil is fabricated as part of the metallization in the BEOL (i.e. as line/vias of the BEOL). To further increase the cross section of the solenoidal coil part of it may be built by electrodeposition through a mask on top of the BEOL layers.

An electromagnetic well logging instrument includes an instrument housing, at least one transmitter coil disposed on the housing and at least one receiver coil disposed on the housing. At least one of the transmitter and receiver coils is formed from a combination solenoidal (axial) and saddle coils. The net dipole moment direction of the combined coil is determined by selecting the relative turn-areas of the saddle and solenoidal coil. The combined coil can be formed from a single wire wound to have both a longitudinal magnetic dipole moment and a transverse magnetic dipole moment with respect to a longitudinal axis of the housing.

A multi-beam electron gun provides a plurality N of cathode assemblies comprising a cathode, anode, and focus electrode, each cathode assembly having a local cathode axis and also a central cathode point defined by the intersection of the local cathode axis with the emitting surface of the cathode. Each cathode is arranged with its central point positioned in a plane orthogonal to a device central axis, with each cathode central point an equal distance from the device axis and with an included angle of 360/N between each cathode central point. The local axis of each cathode has a cathode divergence angle with respect to the central axis which is set such that the diverging magnetic field from a solenoidal coil is less than 5 degrees with respect to the projection of the local cathode axis onto a cathode reference plane formed by the device axis and the central cathode point, and the local axis of each cathode is also set such that the angle formed between the cathode reference plane and the local cathode axis results in minimum spiraling in the path of the electron beams in a homogenous magnetic field region of the solenoidal field generator.

The invention discloses a road sign for building construction. The road sign comprises a column pole and a sign body fixedly connected to the side wall of the column pole, a device cavity is formed inthe side wall of the upper end of the column pole, and a telescopic airbag is fixedly connected to the inner top of the device cavity; and a fixing part is fixedly installed at the lower end of the telescopic airbag, and a cleaning mechanism for cleaning the surface of the sign body is installed on the fixing part. By arranging a driving mechanism, the telescopic airbag, the cleaning mechanism, aspiral coil, a magnetic stripe and an indicator light, t the self-cleaning of the surface of the sign body can be realized, so that a driver can clearly grasp the road conditions, manual cleaning isnot needed, the danger of falling during manual cleaning is avoided, the labor intensity of construction workers is reduced, meanwhile, an indicator light strip can emit light during cleaning to enhance the warning effect of the road sign, the driver is attracted to actively watch for obtaining sign content, and the driver can be better helped to get the sign content.

The invention discloses an ecological corridor vegetation wall with an automatic irrigation function. The vegetation wall comprises a wall body fixedly connected on the upper end of a ground. A plurality of planting slots are provided on the sidewall of the wall body. A water collection tank is provided on the upper end of the water body. A water storage cavity is provided in the wall body. The lower end of the water collection tank communicates with the inner wall of the water storage cavity through a one-way water inlet hole. According to the invention, when pedestrians continuously step onan elastic board, rainwater in the water collection tank can be pumped into the water storage cavity, and then presses a magnetic sliding plate to slide downward. Also, when high-speed gas flow is ina one-way gas inlet pipe, induced current is generated on a spiral coil, such that power is supplied for a conductive block. When a conductive column contacts the conductive block, a circuit on an electromagnetic board is closed, such that the magnetic sliding plate slides upwards rapidly, and further the water in the water storage cavity is pressed out through a water outlet pipe for irrigating plants in the planting slots. With the vegetation wall provided by the invention, manual water spraying with equipment is avoided, such that time and effort are greatly saved, and electric energy consumption is saved.

Disclosed is an extremely-low-frequency radio wave shielding test device. The device comprises a radio wave shielding cylinder and an in-cylinder test coil, the in-cylinder test coil is located in the radio wave shielding cylinder, the radio wave shielding cylinder comprises a first cylinder end cover, a second cylinder end cover, a thick-wall metal tube, screws, a dual hole cover and a shielding cover, the first cylinder end cover, the thick-wall metal tube and the second cylinder end cover are fixed into a whole through the screws to form a shielding cavity body portion of the extremely-low-frequency radio wave shielding test device, a disc support supporting a test solenoidal coil, a protective casing located outside the test solenoidal coil, the test solenoidal coil and a round tube used for winding of the test solenoidal coil are distributed in the in-cylinder test coil from outside to inside, a tube support and a test tube are arranged in a hole of the round tube, and the tube support is used for supporting the test tube. The extremely-low-frequency radio wave shielding test device is wide in shielding range, integrally airtight and high in shielding properties, good in shielding effect on medium and low frequency band radio waves, and applicable to professional laboratories.

This invention relates to method and apparatus for smelting ferrous metals, nonferrous metals and iron alloys in converter. The method provides DC to the converter to construct spacial magnetic field in the converter. The DC is pre-adjusted before applied to the converter so that the melt in the converter moves from the edge to the center of the converter. During converter smelting process, iron-containing raw material 1-40 kg/ton steel is added into the converter. The iron-containing raw material is selected from iron ore, oxide scale, pellet or other iron-containing raw materials. A supplementary magnetic field contrary to the direction of the ascending gas flow in the converter is formed by the contact electrode at the top of the converter. The apparatus comprises: a converter with refractory lining, an injection oxygen lance in the converter, a solenoidal coil in the lining, a DC generator, and a modulation signal generator.

A magnetic head for use with a magnetic recording medium includes a top write pole for use in recording information on the magnetic recording medium, and a solenoidal coil structure having a lower coil layer disposed below the top write pole and an upper coil layer disposed above the top write pole. The upper coil layer and the lower coil layer are insulated from the top write pole. The magnetic head also includes a vertical interconnect structure connecting the lower coil layer to the upper coil layer.

The invention discloses a heat dissipation system of a new energy automobile battery pack, and relates to the technical field of battery pack heat dissipation, the heat dissipation system comprises a battery box, a coiled pipe, a heat dissipation mechanism and a pressing mechanism, when the heat dissipation system is used, power is generated through a temperature difference power generation plate, the generated power is stored in an external energy storage power supply, and when the electric quantity in the energy storage power supply is sufficient, the heat dissipation mechanism is started; when the electric quantity in the energy storage power supply is insufficient, current is intermittently introduced into the spiral coil under the action of the control switch, so that a magnetic field is intermittently generated on the spiral coil, the magnetostrictive rod in the liquid storage tank intermittently extends or contracts, and the cooling liquid guides heat generated by the storage battery into the radiator and disperses the heat into external air; current is intermittently introduced into the spiral coil through the storage battery in the battery box, power generation of the thermoelectric power generation plate and the storage battery complement each other, current is continuously and intermittently introduced into the spiral coil, and the energy-saving and environment-friendly concept advocated at present is met.

The invention provides a power supply system for providing non-contact power for an active current/voltage mutual inductor. The power supply system comprises a sinusoidal output radio frequency power supply, an emitting and receiving circuit, a direct current converter circuit, an active current/voltage mutual inductor and a wireless signal emitter, wherein the emitting circuit is arranged at the low-voltage side; a receiving circuit is arranged at the high-voltage side; an emitting coil A and a receiving coil B are multi-turn spiral coils of the same structure; and the natural frequency of the multi-turn spiral coils is kept to be consistent with the frequency of a radio frequency power supply. While working, the coils A and B are in a resonant state, electric energy is transmitted to the receiving coil B from the emitting coil A through electromagnetic fields; the coil B is completely coupled with a load coil, so that the load coil obtains electric energy, and then is rectified and filtered by the direct current converter circuit to provide direct current power to the active current/voltage mutual inductor at the high-voltage side and other signal processing and emitting devices. The non-contact power supply system disclosed by the invention achieves realizes complete isolation of a high-voltage circuit and a low-voltage circuit of the active current/voltage mutual inductor power supply system.

The invention provides electromagnetic thermal coupling and thermoelectric chemical oxidation equipment. The equipment comprises an electrolytic tank, an electrolytic bath, an electromagnetic thermal coupling part, a thermoelectric chemical oxidation power supply and a temperature control system. The electrolytic bath is in the electrolytic tank and is a hollow cylinder, an electrolyte in the electrolytic tank overflows the electrolytic bath, the electromagnetic thermal coupling part is connected with the electrolytic bath, and the electromagnetic thermal coupling part is used for controlling directional movement of charged particles in the electrolytic bath through a magnetic field. The electromagnetic thermal coupling part is composed of a spiral coil and a current source, the spiral coil is formed by spirally winding an insulated wire on the outer wall of the electrolytic bath, and the two ends of the spiral coil are connected with the current source. The positive pole of the thermoelectric chemical oxidation power supply is connected with a workpiece, the negative pole of the thermoelectric chemical oxidation power supply is connected with the electrolytic bath, the workpiece is valve metal or conductive metal with the outer surface being valve metal, the workpiece is subjected to thermoelectric chemical oxidation in the electrolytic bath, and an oxidation ceramic layer grows on the surface of the workpiece in situ. The temperature control system is connected with the electrolytic tank and is used for controlling the temperature of the electrolyte in the electrolytic tank.

The invention belongs to the technical field of waste water treatment and relates to a device and method for treating naproxen waste water under a low temperature environment. The device is composed of a water distribution chamber, an anaerobic magnetic-force intensified biological filter tank, an electric-biological degradation reaction tank and an aerobic magnetic-force intensified biological filter tank, and a negative plate (13) and a positive plate (14) of the electric-biological degradation reaction tank are in series connection between a spiral coil (11)of an aerobic magnetic biological filter material layer (5) and a spiral coil (11) of an anaerobic magnetic biological filter material layer (6), then are in series connection with a sliding resistor (21) and then are connected with a direct current power source (1). Water is treated through the water distribution chamber, the anaerobic magnetic biological filter material layer (6), a filling particle electrode layer (4) and the aerobic magnetic biological filter material layer (5) in sequence and then drained out. The device is compact in arrangement and simple in structure, and the naproxen waste water is treated physically, chemically and biologically under the low temperature condition, so that the removal purpose is achieved.

The invention discloses a dust-proof and explosion-proof type LED illuminating lamp for underground engineering. The dust-proof and explosion-proof type LED illuminating lamp comprises a lamp shell, alamp body is fixedly connected to the lower end of the lamp shell, a liquid storage cavity is formed in the lower end of the lamp shell, a sliding plate is connected to the inner wall of the liquid storage cavity in a sealed and sliding mode, and the side wall of the sliding plate is elastically connected with the inner wall of the liquid storage cavity through a memory spring; a circular cavityis formed in the position, located above the liquid storage cavity, of the lamp body, a plurality of impellers are rotationally connected to the inner wall of the circular cavity through a rotating shaft, and the inner wall, away from the memory spring, of the liquid storage cavity is connected with the inner wall of the circular cavity through a liquid inlet pipe. Through the liquid storage cavity and the memory spring, heat on the lamp body can be absorbed, the lamp body can be effectively cooled, meanwhile, after induced current is generated on the spiral coil, a large number of negative charges exist on the dust collection cover, then dust in underground engineering is adsorbed, the dust can be effectively prevented from drifting away freely to endanger health of workers.

The invention relates to a tubular coil coupler structure, relates to equipment, relating to power coupling, of a tubular coil-coupled electrodeless lamp and the like, and aims at providing a tubular coil coupler which is high in coupling efficiency, low in coupling frequency, reasonable in effective magnetic line distribution, high in heat dissipation rate, high in magnetic flux and energy-saving. The tubular coil coupler comprises an alternating power source, a hollow annular ferromagnetic core, a tubular metal coil group, a plurality of capacitor parts and a solenoidal coil. Compared with the prior art, the tubular coil coupler has the advantages that a new coupler is added for an existing power coupler; the tubular coil coupler is high in coupling efficiency, low in coupling frequency, reasonable in effective magnetic line distribution, high in heat dissipation rate, high in magnetic flux and energy-saving; the hollow annular ferromagnetic core is directly connected with air, and is high in heat dissipation rate; and a tubular coil of the built-in coupler plays auxiliary heat dissipation and support roles.

The invention discloses an anti-fouling interactive reflection type landscape decoration light wall which comprises a decoration wall body, a plurality of light-transmitting plates are arranged on the decoration wall body, a plurality of glass sleeves are further arranged on the decoration wall body, a plurality of through holes are formed in the side walls of the glass sleeves, a plurality of magnetic plugs are connected into the glass sleeves in a sliding mode, and the through holes are communicated with the magnetic plugs. An air inlet pipe is installed on the decorative wall, a pulse valve is installed in the air inlet pipe, an elastic corrugated pipe communicated with the air inlet pipe is fixedly arranged at the bottom in the glass sleeve, the upper end of the elastic corrugated pipe is communicated with an air guide pipe, and the upper end of the air guide pipe is sealed. The pulse airflow is injected into the air inlet pipe, the magnetic plug can be pushed to move up and down, then the spiral coil generates current to light the LED lamp beads, meanwhile, the airflow is continuously blown to the light-transmitting plates on the two sides, the lamplight projection decoration effect of the landscape wall can be achieved, meanwhile, dust attached to the light-transmitting plates can be blown away, and the service life of the landscape wall is prolonged. And the light-transmitting plate is kept clean.