摘要:
In a motor driven by a drive circuit such as an inverter, there is a problem that electric current flowing through a bearing causes electric corrosion, which impairs the durability of the bearing. A motor of the invention includes: a stator in which a winding is applied through an insulating part to a stator core formed by laminating a predetermined number of electromagnetic steel plates which have been punched into a predetermined shape; a rotor assembly in which a rotor and bearings and formed by rolling bearings are fitted to a shaft; a printed wiring board which is arranged at an end part of the stator in an axial direction and to which a drive circuit is mounted; a bracket imposed to at least the end part of the stator in the axial direction to which the printed wiring board is arranged; and a conductive sheet provided between the printed wiring board and the bracket.
摘要:
In a motor driven by a drive circuit such as an inverter, there is a problem that electric current flowing through a bearing causes electric corrosion, which impairs the durability of the bearing. A motor of the invention includes: a stator in which a winding is applied through an insulating part to a stator core formed by laminating a predetermined number of electromagnetic steel plates which have been punched into a predetermined shape; a rotor assembly in which a rotor and bearings and formed by rolling bearings are fitted to a shaft; a printed wiring board which is arranged at an end part of the stator in an axial direction and to which a drive circuit is mounted; a bracket imposed to at least the end part of the stator in the axial direction to which the printed wiring board is arranged; and a conductive sheet provided between the printed wiring board and the bracket.
摘要:
A power conversion device includes a printed circuit board, whose mounting surface is opposite to an annular surface formed by an annular stator that constitutes a motor, arranged to be separated from the annular surface with a predetermined distance, and mounted with a Hall element that detects a rotation position of a rotor of the motor on a mounting surface on a side of the stator; an inverter IC that is mounted on the mounting surface on the side of the stator of the printed circuit board to supply a high-frequency current to the stator; and an overheat detection unit that is mounted on the mounting surface on the side of the stator of the printed circuit board and detects an overheated state of the inverter IC. When the overheat detection unit detects an overheated state, the inverter IC restricts or stops a current to be supplied to the stator.
摘要:
A power conversion device includes a printed circuit board, whose mounting surface is opposite to an annular surface formed by an annular stator that constitutes a motor, arranged to be separated from the annular surface with a predetermined distance, and mounted with a Hall element that detects a rotation position of a rotor of the motor on a mounting surface on a side of the stator; an inverter IC that is mounted on the mounting surface on the side of the stator of the printed circuit board to supply a high-frequency current to the stator; and an overheat detection unit that is mounted on the mounting surface on the side of the stator of the printed circuit board and detects an overheated state of the inverter IC. When the overheat detection unit detects an overheated state, the inverter IC restricts or stops a current to be supplied to the stator.
摘要:
It is provided a composite electronic part having magnetic material and dielectric material and made by co-sintering at a temperature of 1000° C. or lower. The magnetic material comprises a ferrite comprising 46 to 48 mol % of Fe2O3, 0.1 to 36 mol % of ZnO, 10 to 14 mol % of CuO and the balance being NiO. The dielectric material has a dielectric constant of 1000 or higher, and comprises a barium titanate based dielectric material to which 0.5 to 4.0 weight parts of CuO and 4.0 to 9.0 weight parts of Bi2O3 are added with respect to 100 weight parts of the barium titanate based dielectric material.
摘要翻译:提供了具有磁性材料和介电材料的复合电子部件,并通过在1000℃或更低的温度下共烧结制成。 磁性材料包括铁氧体,其包含46至48mol%的Fe 2 O 3,0.1至36mol%的ZnO,10至14mol%的CuO,余量为NiO。 电介质材料的介电常数为1000以上,并且包括钛酸钡系电介质材料,相对于100重量份的钛酸钡系,添加0.5〜4.0重量份的CuO和4.0〜9.0重量份Bi 2 O 3 介电材料。
摘要:
8-(3-pentylamino)-2-methyl-3-(2-chloro-4-methoxyphenyl)-6,7-dihydro-5H-cyclopenta[d]pyrazolo[1,5-a]pyrimidine methanesulfonate of the structural formula (I) has Corticotropin Releasing Factor (CRF) antagonist activity and is useful in treating neuropsychiatric and digestive system diseases.
摘要:
A gaming machine of the present invention performs an effect of rotating an image displayed in each display block having a second specific symbol rearranged therein in a direction so as to turn a display screen of a display over to the other side after scroll-displaying a specific character image to the display in a direction from one side of a symbol display region toward the opposite side, and also changing the second specific symbol rearranged in the each display block into a first specific symbol, when the first specific symbol and the second specific symbol have been rearranged in the symbol display region and also when it has been determined to display the specific character image; and offers an award in accordance with the number of first specific symbols arranged in the symbol display region as a result thereof.
摘要:
The present invention provides an IC tag which has a structure comprising a first adhesive layer formed on a surface of a substrate sheet, an electronic circuit and an IC chip connecting both ends of the electronic circuit, both formed on the surface of the first adhesive layer, and a second adhesive layer covering the electronic circuit and the IC chip. The IC tag further includes a release agent layer formed at positions corresponding to the both ends of the electronic circuit and located at the interface between the substrate sheet and the first adhesive layer. When the IC tag attached to an article is peeled off, the built-in electronic circuit is surely broken.
摘要:
According to the present invention, crystals comprising (2R)-2-propyloctanoic acid and an amine, which can be used as bulk drugs for safely orally administrable solid preparations with keeping the pharmacological effect, are provided. Among these crystals, the crystal with dibenzylamine per se is particularly useful as bulk drug for pharmaceuticals and can be used as an intermediate to produce (2R)-2-propyloctanoic acid having an optical purity of more than 99.5% e.e. which has not been obtained.
摘要:
A gaming machine of the present invention performs an effect of rotating an image displayed in each display block having a second specific symbol rearranged therein in a direction so as to turn a display screen of a display over to the other side after scroll-displaying a specific character image to the display in a direction from one side of a symbol display region toward the opposite side, and also changing the second specific symbol rearranged in the each display block into a first specific symbol, when the first specific symbol and the second specific symbol have been rearranged in the symbol display region and also when it has been determined to display the specific character image; and offers an award in accordance with the number of first specific symbols arranged in the symbol display region as a result thereof.