Abstract:
An in-wheel motor drive device includes a motor part, a speed reducer part, a wheel bearing part, a casing, and a lubrication mechanism configured to supply lubricating oil to the motor and speed reducer parts. A rotation shaft of a motor in the motor part is configured to drive an input shaft of a speed reducer having eccentric portions to rotate. The speed reducer part reduces a speed of rotation of the input shaft of the speed reducer and transmits the rotation to an output shaft of the speed reducer. The wheel bearing part is connected to the output shaft of the speed reducer. The motor part includes a stator fixed to the casing and a rotor arranged at the rotation shaft of the motor. A shielding plate that reduces stirring resistance of the lubricating oil generated by rotation of the rotor is arranged in the motor part.
Abstract:
An object of the present invention is to reduce an axial dimension of an in-wheel motor driving device in which a motor section A and a wheel hub bearing section C are connected coaxially in series via a speed reducer section B, thereby providing a large inside space of a vehicle as well as increasing freedom of routing a power supply wires. A terminal box for the power supply wires which supply power to the motor section A is disposed on the outer circumferential side surface of the housing which holds the motor section A. The power supply wires 61 are routed out of the terminal box to an inboard side and are anchored by an power supply wire holder which extends perpendicularly to an axial centerline of the housing.
Abstract:
An in-wheel motor drive device includes a motor part, a speed reducer part, a wheel bearing part, a casing, and a lubrication mechanism that supplies lubricating oil to the motor and speed reducer parts. A rotation shaft of a motor in the motor part drives an input shaft of a speed reducer. The speed reducer part reduces a rotation speed of the input shaft and transmits the rotation to an output shaft. The lubrication mechanism includes an oil path in the speed reducer part, which discharges oil inside the speed reducer part to the motor part, and an oil path in the motor part, which discharges oil inside the motor part to an oil tank together with the oil from the speed reducer part. The motor part includes a partition plate that guides the oil from the speed reducer part to the oil path in the motor part.
Abstract:
An in-wheel motor drive device includes a motor part, a speed reduction part, a wheel bearing part, and a casing configured to hold those parts. The motor part is configured to rotationally drive an input shaft of a speed reducer having eccentric portions. The speed reduction part is configured to reduce a speed of rotation of the input shaft of the speed reducer to transmit the rotation to an output shaft of the speed reducer. The wheel bearing part is connected to the output shaft of the speed reducer. The speed reduction part includes a lubrication mechanism for the speed reduction part, which is configured to supply lubricating oil to the speed reduction part. Rolling bearings configured to support the input shaft of the speed reducer are ball bearings each having an initial radial internal clearance of from 10 μm to 60 μm.
Abstract:
An optical system for a projector, through a projecting optical system on a screen, is provided. The optical system includes a modulating system configured to modulate color components corresponding to three primary colors in accordance with image data, the modulating system being configured such that the color components emerging from the modulating system proceed along optical paths different from those of color components incident on the modulating system, respectively, and a color combining system configured to combine the color components emerged from the modulating system, the combined color components being directed to the projecting optical system. The modulating system includes first through third reflecting optical elements. Each of the first through third reflecting optical elements is inclined with respect to a plane that includes axes of color components emitted from the first through third reflecting optical elements.
Abstract:
An object is to provide a compact power transmission device which comprises a small number of parts and is compact in size, and which can transmit the rotation of a rotary shaft to a wheel with a high reduction ratio.A rotary shaft 11 is provided so as to be coaxial with an inner member 11 which comprises a hub ring 4 and a bearing inner ring 5. External gears 16a and 16b are rotatably provided around eccentric portions 14a and 14b formed on the rotary shaft 11. The external gears 16a and 16b mesh with internal teeth 18 formed on the inner periphery of a casing 1. When the rotary shaft 11 rotates, the external gears 16a and 16b mesh with the internal teeth 18 one after another, so that their centers rotate about the axis of the rotary shaft. When the rotary shaft 11 rotates once, the external gears 16a and 16b rotate about their own axes by an amount corresponding to the difference in number between the external teeth 17 and the internal teeth 18. The rotation of the external gears about their axes is transmitted through a torque transmission means 20 to the inner member 3, thereby rotating the inner member 3 at a reduced speed.
Abstract:
An in-wheel motor drive unit (21) comprises a casing (22), a motor part (A), a deceleration part (B), a wheel hub (31), and a wheel hub bearing (33) rotatably supporting the wheel hub (31) with respect to the casing (22). The wheel hub bearing (33) includes first and second outer track surfaces (33a) and (33b) provided on the inner diameter surface of the casing (22), a first inner track surface (33c) provided on the outer diameter surface of a wheel-side rotation member (30) and opposed to the first outer track surface (33a), a second inner track surface (33d) provided on the outer diameter surface of the wheel hub (31) and opposed to the second outer track surface (33b), and a plurality of rolling elements (33e) arranged between the outer track surfaces (33a) and (33b) and the inner track surfaces (33c) and (33d).
Abstract:
An in-wheel motor drive unit (21) comprises a casing (22), a motor part (A), a deceleration part (B), a wheel hub (31), and a wheel hub bearing (33) rotatably supporting the wheel hub (31) with respect to the casing (22). The wheel hub bearing (33) includes first and second outer track surfaces (33a) and (33b) provided on the inner diameter surface of the casing (22), a first inner track surface (33c) provided on the outer diameter surface of a wheel-side rotation member (30) and opposed to the first outer track surface (33a), a second inner track surface (33d) provided on the outer diameter surface of the wheel hub (31) and opposed to the second outer track surface (33b), and a plurality of rolling elements (33e) arranged between the outer track surfaces (33a) and (33b) and the inner track surfaces (33c) and (33d).
Abstract:
The electronic clinical thermometer includes a thermistor, a reference resistor, a voltage switch for selectively applying a voltage in order to accumulate electric charge in a capacitor via the thermistor or reference resistor, an A/D converter for detecting a voltage change occurring when removing the electric charge accumulated in the capacitor, and outputting an ON signal while the capacitor has a voltage equal to or higher than a predetermined voltage, a timer for measuring the duration of the ON signal, and an arithmetic processor for calculating the ambient temperature of the thermistor by using the discharge time when removing the electric charge accumulated in the capacitor via the thermistor, and the average value of the discharge times when removing the electric charge accumulated in the capacitor via the reference resistor immediately before and after removing the electric charge accumulated in the capacitor via the thermistor.
Abstract translation:电子体温计包括热敏电阻,参考电阻,用于选择性地施加电压以便通过热敏电阻或参考电阻积蓄电容器的电容的电压开关; A / D转换器,用于检测在去除 蓄积在电容器中的电荷,并且当电容器具有等于或高于预定电压的电压时输出ON信号,用于测量ON信号的持续时间的定时器和用于计算热敏电阻的环境温度的运算器 通过使用经由热敏电阻去除累积在电容器中的电荷的放电时间,以及在去除积累在电容器中的电荷之前和之后通过基准电阻去除累积在电容器中的电荷的放电次数的平均值 电容通过热敏电阻。
Abstract:
The present invention relates to a patch package having a patch and a packaging film sandwiching the patch, wherein the packaging film is tightly sealed in two or more flat heat-sealed parts, and respective adjacent two or more flat heat-sealed parts are separated across a non-sealed part.