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Cooling structure of rotating electrical machines

A technology of rotating electric machines and structures, which is applied in the direction of cooling/ventilation devices, electromechanical devices, electrical components, etc., which can solve the problems of labor-intensive processing and high manufacturing costs, and achieve the effects of reducing labor in processing, simplifying structures, and reducing manufacturing costs

Inactive Publication Date: 2015-11-25
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, processing requires labor and may increase manufacturing costs

Method used

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  • Cooling structure of rotating electrical machines
  • Cooling structure of rotating electrical machines
  • Cooling structure of rotating electrical machines

Examples

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Embodiment Construction

[0014] figure 1 A rotating electrical machine to which the cooling structure according to one embodiment of the present invention is applied is shown. The rotary electric machine 1 is a motor generator functioning as an electric motor and a generator, and is mounted on a vehicle as a driving power source. The rotating electric machine 1 includes a rotor 2 and a stator 3 . figure 2 From figure 1 View the stator 3 in the direction of the arrow II. and, image 3 From figure 2 View the stator 3 in the direction of the arrow III. like figure 2 As shown, the stator 3 includes a plurality of split iron cores 4 and a shrink fit ring 5 as a fastening member for integrating the split iron cores 4 . A plurality of split iron cores 4 are combined into a ring shape, and shrink fit rings 5 ​​are fitted on the outer peripheries of these split iron cores 4 . The shrink fit ring 5 fastens and integrates the plurality of split cores 4 from the outer periphery. like image 3 As show...

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Abstract

A cooling structure includes a rotating electrical machine (1) that has a stator (3), the stator including plural split cores (4) annularly combined, and a shrink-fitted ring (5) mounted to the outer periphery of the plural split cores (4) for integrating the plural split cores (4), and a case (10) that accommodates the rotating electrical machine (1) therein, the shrink-fitted ring (5) includes a cylindrical portion (6), and a flange portion (7) that is provided at one end of the cylindrical portion (6), the case (10) includes an accommodating portion (11) which has an inner peripheral wall (11a) whose inner diameter is larger than the outer diameter of the cylindrical portion (6) and smaller than the outer diameter of the flange portion (7), and in which accommodates the stator (3), a first wall face (12) extending outward in the radial direction from the end of the inner peripheral wall (11a) where the flange portion (7) is arranged, the flange portion (7) being mounted to the first wall face (12), and a second wall face (13) extending inward in the radial direction from the end of the inner peripheral wall (11a).

Description

technical field [0001] The present invention relates to a cooling structure for cooling a rotating electrical machine including a stator formed by integrating a plurality of split iron cores with fastening members on the outer peripheries of the plurality of split iron cores. Background technique [0002] A motor is known that includes a housing in which a rotor and a stator are accommodated, and a water jacket through which cooling water flows is provided on a portion of the housing radially outside of the stator (see Patent Document 1). In addition, Patent Document 2 exists as a prior art related to the present invention. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2008-206213 [0004] Patent Document 2: Japanese Patent Application Laid-Open No. 06-099745 [0005] In the motor disclosed in Patent Document 1, it is necessary to process a water seal inside the wall surface of the casing. Therefore, processing requires labor, and there is a possibility that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K9/19
CPCH02K5/20H02K9/19H02K5/203
Inventor 岩濑雄二马场伸一加藤阳介三宅浩平
Owner TOYOTA JIDOSHA KK
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