摘要:
A door unlocking device for a vehicle includes transmit/receive device activated to send an operation signal to a portable transceiver and receives an identification code from the transceiver, the transmit/receive device unlocking a door locking mechanism when the identification code matches a preset registration code, a starter switch activating the transmit/receive device when a door knob of an exterior door handle is pressed toward a vehicle body through first door handle actuation, and the door knob actuated to a first operation position and unlock unit unlocking the door locking mechanism when the door knob of the exterior door handle is actuated to a second operation position as a result of second door handle actuation subsequent to the first door handle actuation in the direction opposite to the direction of the first door handle actuation.
摘要:
A vehicle remote controller that reduces the number of parts. The vehicle remote controller includes a portable device carried by a driver and a transceiver (11) arranged in the vehicle to output a request signal for intercommunicating with the portable device and to output a transponder driving radio wave. The transceiver outputs the request signal to either a first area, which is in a vehicle passenger compartment, or an area outside the vehicle, and has a common antenna (14) for outputting the transponder driving radio wave to a second area, which is in the vehicle passenger compartment.
摘要:
A method is provided for producing magnetic green compacts. Material powder including a rare earth alloy and containing not less than 15 mass % of fine particles with particle diameter of not more than 2 μm is filled into a compacting mold, then compacted and compressed, and subjected to magnetic fields to give a green compact. A powder compact having a packing density 1.05 to 1.2 times the bulk density is subjected to a weak magnetic field of 1 to 2 T to give a compact. The magnetic field strength is increased to not less than 3 T at an excitation rate of 0.01 to 0.15 T/sec, and the strong magnetic field of not less than 3 T is applied to the compact by a high-temperature superconducting coil. The magnetic field is applied by the high-temperature superconducting coil in a direction opposite to a direction applied by a normal conducting coil.
摘要:
The present invention provides a powder for a magnet which can form a rare earth magnet having excellent magnetic characteristics and which has excellent moldability, a method for producing the powder for a magnet, a powder compact, and a rare earth-iron-boron-based alloy material.Magnetic particles constituting a powder for a magnet each include a structure in which a particle of a phase 3 of a hydrogen compound of a rare earth element is dispersed in a phase 2 of an iron-containing material. Since the phase 2 of the iron-containing material is uniformly present in each of the magnetic particles 1, the powder has excellent moldability and easily increases the density of a powder compact 4. The powder for a magnet can be produced by heat-treating a powder of a rare earth-iron-boron-based alloy (R—Fe—B-based alloy) in a hydrogen atmosphere at a temperature equal to or higher than the disproportionation temperature of the R—Fe—B-based alloy to separate the powder into the rare earth element and the iron-containing material and to produce the hydrogen compound of the rare earth element. The powder compact 4 is produced by compacting the powder for a magnet. The powder compact 4 is heat-treated in a vacuum to produce a R—Fe—B-based alloy material 5, and the R—Fe—B-based alloy 5 is magnetized to produce a R—Fe—B-based alloy magnet 6.
摘要:
A soft magnetic material, a dust core, a method for manufacturing the soft magnetic material, and a method for manufacturing the dust core that can improve DC bias characteristics are provided.A soft magnetic material includes a plurality of metal magnetic particles 10 whose coefficient of variation Cv (σ/μ), which is a ratio of a standard deviation (σ) of a particle size of the metal magnetic particles 10 to an average particle size (μ) thereof, is 0.40 or less and whose circularity Sf is 0.80 or more and 1 or less. The metal magnetic particles 10 preferably have an average particle size of 1 μm or more and 70 μm or less. The soft magnetic material preferably further includes an insulating coated film that surrounds a surface of each of the metal magnetic particles 10.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (30) each including an iron-based particle (10) containing iron and an insulating coating film (20) surrounding a surface of the iron-based particle (10). The insulating coating film contains an organic group derived from an organic acid having at least one substance selected from the group consisting of titanium, aluminum, silicon, calcium, magnesium, vanadium, chromium, strontium, and zirconium. The at least one substance in the insulating coating film (20) is bonded to iron in the iron-based particles (10) through the organic group derived from the organic acid in the insulating coating film (20). Furthermore, a method for producing a soft magnetic material includes the steps of preparing the iron-based particles (10) containing iron and forming the insulating coating film (20) surrounding a surface of each of the iron-based particles (10). In the step of forming the insulating coating film, the organic acid containing the substance is brought into contact with the surfaces of the iron-based particles (10).
摘要:
The object of the present invention is to provide a powder core and method for making the same that is equipped with insulative coating having superior heat resistance, with the coating making it possible to adequately restrict the flow of eddy currents between particles.The powder core is equipped with a plurality of compound magnetic particles bonded to each other. Each of said plurality of composite magnetic particles includes: a metal magnetic particle 10; an insulative lower layer coating 20 surrounding a surface 10a of said metal magnetic particle 10; an upper layer coating 30 surrounding said lower layer coating 20 and containing silicon; and dispersed particles 50 containing a metal oxide compound and disposed in said lower layer coating 20 and/or said upper layer coating 30. A mean particle diameter R of the dispersed particles 50 meets the condition 10 nm
摘要:
A method of producing a soft magnetic material includes the steps of preparing soft magnetic powder containing a plurality of soft magnetic particles etching the soft magnetic powder to remove surfaces of the soft magnetic particles and, after the etching step, heat-treating the soft magnetic powder in a finely divided state at a temperature of not less than 400° C. and not more than 900° C. By this method configured as above, desired magnetic characteristics can be obtained.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles (30), wherein each of the plurality of composite magnetic particles (30) includes a metal magnetic particle (10), an insulating coating (20) covering the surface of the metal magnetic particle (10), and a composite coating (22) covering the outside of the insulating coating (20). The composite coating (22) includes a heat-resistance-imparting protective coating (24) covering the surface of the insulating coating (20), and a flexible protective coating (26) covering the surface of the heat-resistance-imparting protective coating (24). Accordingly, a soft magnetic material and a dust core which have a satisfactory compactibility and in which the insulating coating satisfactorily functions, thereby sufficiently reducing core loss, can be obtained.
摘要:
A soft magnetic material includes a plurality of composite magnetic particles each including a metal magnetic particle and an insulating coating film covering the metal magnetic particle. Each of the plurality of composite magnetic particles has a ratio Rm/c of a maximum diameter to a circle-equivalent diameter of more than 1.15 and not more than 1.35. The insulating coating film is composed of a thermosetting organic material and has a pencil hardness of 5H or higher after thermosetting. With this material, an eddy current loss can be reduced, and a compact with a high strength can be formed.