摘要:
The present invention provides an automotive rotary electric machine that can suppress unnecessary disengagement of a protective cover by increasing supporting strength for the protective cover. The automotive rotary electric machine according to the present invention includes: a rectifier and a voltage regulator that are disposed outside a first axial end of a casing; and a resin protective cover that is formed so as to have a cup shape that is constituted by a bottom portion and a cylindrical peripheral wall portion, and that is mounted onto a casing so as to cover the rectifier and the voltage regulator. The protective cover is held by a circuit board of the rectifier by coupling by snap-fitting a plurality of projections that are disposed so as to protrude from an inner circumferential wall surface of the peripheral wall portion to a plurality of projection-engaging portions that are formed on an outer peripheral wall surface of the circuit board so as to be separated circumferentially.
摘要:
The present invention provides an automotive rotary electric machine that can suppress unnecessary disengagement of a protective cover by increasing supporting strength for the protective cover.The automotive rotary electric machine according to the present invention includes: a rectifier and a voltage regulator that are disposed outside a first axial end of a casing; and a resin protective cover that is formed so as to have a cup shape that is constituted by a bottom portion and a cylindrical peripheral wall portion, and that is mounted onto a casing so as to cover the rectifier and the voltage regulator. The protective cover is held by a circuit board of the rectifier by coupling by snap-fitting a plurality of projections that are disposed so as to protrude from an inner circumferential wall surface of the peripheral wall portion to a plurality of projection-engaging portions that are formed on an outer peripheral wall surface of the circuit board so as to be separated circumferentially.
摘要:
A thin metal sheet is laminated to form in advance a plurality of core units (of a circular cylinder shape) having the thickness of 1/N (N is a natural number of more than 2) of a predetermined thickness in the laminating direction and this plurality of core units is laminated again for securing so that the whole stator does not cause any mode of oscillation in the diametric direction.
摘要:
A vehicle alternator includes a case having a pair of brackets placed back-to-back, in which ribs are disposed, which define ventilation windows (29; 74) in a bracket body. The ribs serve as heat passage members (54, 60; 73), which have higher thermal conductivity than the bracket body and are partially embedded in the bracket body. Therefore, heat resistance in the heat transfer passage between the stator and the ventilation windows is reduced, and heat generated by the stator is expelled efficiently from the ventilation windows to the outside air, and the temperature of the stator can be reduced.
摘要:
A spacer in a rotary electric machine according to the present invention complements by thermal expansion a gap between a bearing housing portion and an outer ring of an outboard bearing that arises due to differences in thermal expansion between the bearing housing portion and the outer ring of the outboard bearing that result from heat generated during driving, and a flat portion is disposed on an inner circumference of the spacer at at least one position around a circumference, the flat portion being formed so that press an outer circumferential surface of the outer ring of the bearing constantly.
摘要:
An automotive rotary electric machine according to the present invention includes: a mounting bolt that is inserted through a penetrating aperture that is formed on a bottom portion of a protective cover and that is fixed to a portion at a first axial end of a casing; and a metal mounting device that is fixed to a portion of the mounting bolt that projects out through the penetrating aperture, and a harness clamp is held by the metal mounting device.
摘要:
A spacer in a rotary electric machine according to the present invention complements by thermal expansion a gap between a bearing housing portion and an outer ring of an outboard bearing that arises due to differences in thermal expansion between the bearing housing portion and the outer ring of the outboard bearing that result from heat generated during driving, and a flat portion is disposed on an inner circumference of the spacer at least one position around a circumference, the flat portion being formed so that press an outer circumferential surface of the outer ring of the bearing constantly.
摘要:
A thin metal sheet is laminated to form in advance a plurality of core units (of a circular cylinder shape) having the thickness of 1/N (N is a natural number of more than 2) of a predetermined thickness in the laminating direction and this plurality of core units is laminated again for securing so that the whole stator does not cause any mode of oscillation in the diametric direction.
摘要:
There are provided an operating mechanism that drives the opening/closing of contacts, and a sliding conduction part that forms electrical connection of these contacts and the main circuit on receipt of a connection voltage; grease is applied to the mechanical sliding part of the operating mechanism and to the sliding conduction part. The grease has as base oil at least one synthetic oil and is selected from the group consisting of poly &agr;-olefins and dialkyl diphenyl ethers, and contains as thickener 5-30 mass % of a urea compound. The dynamic viscosity of the base oil is 30-500 mm2/s at 40° C.
摘要翻译:提供了驱动触点的打开/关闭的操作机构以及在接收到连接电压时形成这些触点和主电路的电连接的滑动传导部分; 润滑脂被施加到操作机构的机械滑动部分和滑动传导部分。 润滑脂具有至少一种合成油作为基础油,并且选自聚α-烯烃和二烷基二苯基醚,并且含有5-30质量%的尿素化合物的增稠剂。 40℃时基础油的动态粘度为30-500 mm2 / s
摘要:
A stator core which joint vibration in a radial direction and can suppress a vibration mode and a production process therefor. The stator core has a plurality of welded portions formed on the exterior or interior side of the cylinder in the same direction diagonal to the lamination direction of the metal sheet from the upper end to the lower end of the cylinder.