摘要:
Provided is an electric compressor for car air conditioning that allows insulation and airtightness to be ensured at a terminal part thereof. Provided are an opening (111) through which a motor section in a casing communicates with a control section; an insulating terminal (112) closing off the opening (111); a plurality of first wires (131) arranged substantially on a straight line, penetrating the insulating terminal (112), and extending toward the motor section and the control section; a plurality of second wires electrically connected to at least one of the motor section and the control section; plate-shaped male terminals (122) electrically connected to one of the first wires (131) and the second wires; and female terminals electrically connected to the other of the first wires (131) and the second wires, each including a plate portion extending in a plate shape and securing portions disposed at both ends of the plate portion, the male terminals (122) being secured between the plate portions and the securing portions, and the male terminals (122) and the plate portions of the female terminals are disposed so as to extend across the straight line at an acute or obtuse angle.
摘要:
Provided are methods of manufacturing an oriented ceramics containing sodium niobate and a raw material thereof. Specifically, provided is a sodium niobate powder, including cuboidal sodium niobate particles having an average side length of 0.1 μm or more to 100 μm or less, at least one face of the cuboid including a (100) plane in pseudo-cubic notation, in which the sodium niobate powder has a perovskite single-phase structure.
摘要:
An electric compressor includes a compression unit that compresses a refrigerant; an electric motor that is coupled with the compression unit via a main shaft; a housing that accommodates the compression unit and the electric motor; an end-side bearing holding part that is provided near an axial end of the housing closer to the electric motor; and a rolling bearing that has an outer ring press-fitted into the end-side bearing holding part and an inner ring into which an end of the rotating shaft is press-fitted, and that supports the main shaft, in which an opening into which an assembly jig for supporting the rolling bearing when the main shaft is press-fitted into the inner ring can be inserted and removed is provided in an end surface of the housing near the end-side bearing holding part.
摘要:
An electric compressor includes: an electric motor; a compression mechanism driven by the electric motor; a housing accommodating the electric motor and the compression mechanism; an accommodation part provided on a sidewall of the housing and accommodating a drive circuit for driving the electric motor; a lid contacting the accommodation part and fastened to the accommodation part by a fastening portion; a sealing member sandwiched between the accommodation part and the lid so as to seal between them. The accommodation part has a wall standing from the sidewall of the housing, and a step is provided on a standing end surface of the wall orthogonal to a standing direction of the wall, at a midway position from an inside toward an outside of the accommodation part.
摘要:
A position sensing device and method are provided for executing correction processing based on a reliability and error index of each component of GPS output data to increase positioning accuracy. Correction processing is performed to correct a position determination result obtained through dead reckoning, and a vehicle speed, a pitch angle, and a sensor mounting angle used in position determination executed through dead reckoning in a measurement period of GPS in accordance with direction-specific positional components and speed components of a vehicle, which are measured with GPS to determine a reliability of each of the direction-specific positional components and speed components of the vehicle and calculate an error index of a component determined to be a reliable component, to set the degree of contribution of a measurement component determined to be unreliable to correction processing to zero or almost zero, and to reduce the degree of contribution of a measurement component determined to be reliable to correction processing in accordance with a value of the error index.
摘要:
A vehicle travel amount estimation device includes a camera, a taken image storing unit, a compensated image storing unit, a travel amount calculation unit, a vehicle speed and gyro sensor, and a travel amount determination unit. The taken image storing unit and the compensated image storing unit store images taken by the camera. The travel amount calculation unit calculates the amount of travel based on two stored images. The sensors detect the amount of travel of the vehicle. The travel amount determination unit is configured to compare a first amount of travel calculated by the travel amount calculation unit with a second amount of travel detected by the vehicle speed sensor or the like in order to determine the first amount of travel to be the amount of travel of the vehicle when the difference between the first amount and the second amount is smaller than a predetermined value.
摘要:
A piezoelectric material including a strontium calcium sodium niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are strontium, calcium, sodium, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Sr/Nb=a, 0.320≦a≦0.430, when Ca/Nb=b, 0.008≦b≦0.086, and when Na/Nb=c, 0.180≦c≦0.200. The tungsten content on a metal basis is 0.40 to 3.20 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation.
摘要翻译:提供了包括具有高取向度的锶钙铌酸铌基钨青铜结构金属氧化物的压电材料。 还提供了一种压电元件,液体排出头,超声波马达和包括压电材料的除尘装置。 压电材料包括钨青铜结构金属氧化物,其包括锶,钙,钠和铌的金属元素和钨。 金属元素以摩尔计满足以下条件:当Ca / Nb = b,0.008≦̸ b≦̸ 0.086时,当Sr / Nb = a,0.320≦̸ a≦̸ 0.430;当Na / Nb = c,0.180& c≦̸ 0.200。 相对于钨青铜结构金属氧化物100重量份,金属的钨含量为0.40〜3.20重量份。 钨青铜结构金属氧化物具有c轴取向。
摘要:
Provided is a gasket (30), which is used in a motor-driven compressor including an inverter housing, including a flat core of metal (31) and an elastic foamed material (32) so disposed as to cover both surfaces of the core (31), and the gasket (30) has embossed recesses and projections (33) with predetermined shapes. It is possible to enhance sealing performance to seal the inverter housing by using this gasket (30). A motor-driven compressor using this gasket (30) enhances vibration prevention.
摘要:
A map difference data generation apparatus includes: most recent and supplementary map data storage devices storing primary most recent and supplementary map data, respectively; a map update reflection device generating secondly most recent and supplementary map data according to an update of a first link, and generating tertiary most recent and supplementary map data according to an update of a second link; a determination device determining a dependency relationship between the update of the first and second links, in accordance with results of searching a route in the tertiary most recent and supplementary map data between first and second nodes, which are both ends of the second link; and a map difference data generation device generating map difference data, which defines a combination of the update of the first and second links, when the update of the first and second links have the dependency relationship.