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Rotary electric machine for vehicles

A technology for rotating electrical machines and equipment, applied in the directions of electrical machines, synchronous generators, synchronous motors for single-phase current, etc., can solve the problems of space difficulty, wiring weight and wiring cost increase, and reduce voltage drop, weight and cost. The effect of reducing and improving torque characteristics

Active Publication Date: 2009-02-11
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, there is a problem that both wiring weight and wiring cost increase significantly
[0009] Also, it becomes very difficult to secure a space for newly adding and installing the inverter and its control device in the engine room, and there arises a problem that the inverter and its control device must be extremely miniaturized

Method used

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  • Rotary electric machine for vehicles
  • Rotary electric machine for vehicles
  • Rotary electric machine for vehicles

Examples

Experimental program
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Effect test

Embodiment 1

[0015] figure 1 is a longitudinal sectional view showing a structure in which an inverter unit and a rotating electric machine are integrated in the vehicle rotating electric machine device according to Embodiment 1 of the present invention, figure 2 Viewed from the rear side with cover removed figure 1 3 is a schematic diagram of a system circuit of a hybrid electric vehicle in which the vehicle rotating electric machine device of Embodiment 1 of the present invention is installed. by the way, figure 2 The line A-A represents the figure 1 The section line corresponding to the longitudinal section view.

[0016] In FIG. 3 the rotating electric machine 2 is a winding field synchronous motor generator and includes an armature winding 24 of an armature (not shown) and a field winding 21 of a rotor (not shown).

[0017] In addition, the converter 4 in this figure includes: a plurality of switching elements 41 , diodes 42 connected in parallel to the switching elements 41 and...

Embodiment 2

[0034] Figure 4 is a longitudinal sectional view showing a structure in which an inverter unit and a rotary electric machine are integrated in the vehicle-mounted rotary engine device according to the second embodiment of the present invention. Figure 5 It is a view showing the heat radiation fin of the inverter unit viewed from the rear bracket side.

[0035] exist Figure 4 Among them, the converter unit 4 has a substantially cylindrical or polygonal rhombic shape, which is formed by cutting off only a part of the brush holder 30 to surround the slip ring 29, and its shape includes: A lid-shaped case 4b formed by connecting the outside to the circuit terminals inside, and a heat sink 410 integrally fixed to the case 4b. High thermal conductivity materials such as copper and aluminum can be used as the raw material of the heat sink 410, and as Figure 5 As shown, the outer peripheral surface side fins 410a on the outer peripheral surface side of the heat sink 410 and the...

Embodiment 3

[0048] Figure 6 is a longitudinal sectional view showing a structure in which an inverter unit and a rotary electric machine are integrated in a vehicle-mounted rotary engine device according to a third embodiment of the present invention.

[0049] exist Figure 6 Among them, the converter unit 4 has a substantially hollow cylindrical or polygonal rhombus shape, which is formed by cutting off only a part of the brush holder 30 to surround the slip ring 29, and its outer shape includes: covering with insulating resin for A circuit board 4a formed by connecting externally to internal circuit terminals, and an inner peripheral surface side radiator 401, a rear bracket end surface side radiator 402, and an outer peripheral surface side radiator 403 are integrally formed on the circuit board 4a. A high thermal conductivity material such as copper and aluminum can be used as a raw material of each heat sink 401, 402, 403, and heat radiation fins 401a, 402a, and 403a are provided s...

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Abstract

To provide a rotary electric machine for vehicles which is mounted on a car, such as an electric car or a hybrid car, wherein the rotary electric device and the inverter unit which controls the rotary electric device are integrated to improve size reduction and torque characteristics and efficiency of the rotary electric device. Since an inverter unit is cooled by cooling wind forcefully produced by a cooling fan (28), the inverter unit (4) is efficiently cooled. Thus, the radiating fins (401a, 402a, 403a) of heat sinks (401, 402, 403) can be reduced in size, with the result that size reduction of the inverter unit (4) is attained and the mountability of the inverter unit (4) onto a rear bracket (19) is improved. Further, since the inverter unit (4) and rotary electric device (2) are cooled by the cooling wind produced by the cooling fan (28), the cooling medium (cooling wind) for the inverter unit (4) is used also for the rotary electric device (2), so that the cooling structure is simplified.

Description

technical field [0001] The present invention relates to a vehicular rotating electric machine device mounted on an electric vehicle such as a hybrid electric vehicle, and more particularly to a vehicular rotating electric machine in which a rotating electric machine and an inverter unit for controlling the rotating electric machine are integrated Rotating electrical equipment. Background technique [0002] In recent years, in the context of preventing global warming, reduction of carbon dioxide emissions has been demanded. Reduction of CO2 in automobiles means improvement in fuel consumption performance, and as one of the solutions, the development and commercial application of electric vehicles (EV) or hybrid electric vehicles (HEV) has been sought. [0003] In particular, functions required of rotating motor generator sets installed in hybrid electric vehicles include idling stop when the vehicle is stopped, energy regeneration during deceleration operation, torque assist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/00H02K9/02H02K19/10H02K19/22H02M7/48
CPCH02K11/048H02K19/22H02K9/06Y02T10/641H02K19/10Y02T10/64H02K11/05H02K9/02
Inventor 北村裕尾淑人
Owner MITSUBISHI ELECTRIC CORP
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