JPS605745A - Rotary electric machine - Google Patents

Abstract

PURPOSE:To enable to use one type of an end bracket even when the thickness of a stator is different by dividing the stator, displacing the divided stators at arbitrary angles, contacting and coupling a mounting seat plate of a pair of end brackets with the divided surfaces. CONSTITUTION:A stator 9 of noncircular shape is divided at the position of approx. half of the thickness, left and right stator segments 9a, 9b are displaced at arbitrary angle theta to form a stepwise difference at the divided surfaces, and a hole 14 is formed. A plurality of mounting seat plates 15 projected outside direction and a plurality of stator engaging recesses 16 are formed at the port edges of end brackets 11, 11'. The portions projected outwardly to form the stepwise difference of the segments 9a, 9b at the beforehand side are engaged with the recesses 16 of the brackets 11, 11', the plate 15 is contacted with the divided surfaces which form the stepwise difference of the corresponding segments 9a, 9b, and clamped by bolts 17.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rotating electric machine having an end bracket.

Conventional configuration and its problems In general, rotating electric machines have end brackets 2 and 2' abutted on both sides of a stator 1, as shown in Fig. 1, and these are connected with bolts 3, or as shown in Fig. 2. The stator 1 is provided inside the end bracket (2), 2' whose ends are connected with bolts 4, and the protrusion 6.5' protruding inside the end bracket 2.2' is connected to the stator 1. By locating them on both sides, the stator 1 was positioned and fixed.

By the way, in the case shown in FIG. 1, when the stacking thickness of the stator 1 changes, the position of the bearing 8°8' that receives the shaft 7 of the rotor 6 changes, that is, the spacing between the bearings 8°8' changes. Since it changes, there is no compatibility of axis 7. Also, in the case shown in Fig. 2, when the stacking thickness of the stator 1 changes, the end bracket 2.2'
The problem is that we have to change it to something that adapts to this.

OBJECTS OF THE INVENTION The present invention takes into account the above-mentioned conventional problems, and provides a rotating electric machine in which a fixed structure of a stator and an end bracket allows the use of one type of end bracket even when the stacking thickness of the stator is different. The purpose is to provide

Structure of the Invention In order to achieve the above-mentioned object, the present invention divides a stator made of laminated non-Enchin iron cores at approximately half the laminated thickness, and divides the left and right stator components at an arbitrary angle. A stator fitting recess and a mounting seat plate protruding outwardly are provided on the edges of the pair of end brackets, and the front side is fixed to the stator fitting recess of each end bracket. fitting the protruding portions forming the step of the child structure, and abutting the mounting seat plate against the dividing surface forming the step of the corresponding stator structure;
The structure of the rotating electric machine is made by combining the two.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 6. In the figure, 9 is a stator, 10 is a rotor, 11.
11' is the end bracket, 12 is the rotor shaft, 13
, 13' are bearing parts. The stator 9 is made of laminated iron cores, and its outer shape is formed into a non-circular shape, such as an approximately square shape. A step is formed on the divided surface by being displaced by an angle θ, and the stator components 9a and 9b are connected to each other, and a lateral coupling hole 1 is formed in the outwardly protruding portion forming the step.
There are 4. Furthermore, the end bracket 11° 11' has a plurality of mounting seat plates 16 protruding outwardly at the mouth edge and a plurality of stator insertion recesses 16, and the mounting seat plates 15 and the stator The fitting recess 16 is the stator component 91L.
, 9b has an angular relationship that coincides with the smooth angle θ. Further, the depth of the stator fitting recess 16 is such that even if the thickness of one stator structure changes, it can be fitted therein. The pair of end brackets 1
1° 11' fit the stepped outward protruding portions of the stator structures 9a and 9b on the near side into the stator fitting recessed portions 16, respectively, and then attach the mounting seat plate 16 to the corresponding stator structure. The stator structure 92L is brought into contact with the stepped divided surfaces of 9a and 9b, and fixed with bolts 17.

9b.

Effects of the Invention In the rotating electric machine of the present invention, the stator is divided and shifted by an arbitrary angle, and the mounting seats of a pair of end brackets are brought into contact with the divided surfaces and joined together. is always located at the center of the stator stack thickness,
Therefore, even if the stacking thickness of the stator is changed, the position of the bearing portion of the end bracket will not change. For this reason, the end bracket has common use, is convenient to manufacture, and has great practical effects.

[Brief explanation of drawings]

1 and 2 are sectional views of a conventional rotating electrical machine, FIG. 3 is a sectional view of a rotating electrical machine according to an embodiment of the present invention, FIG. 4 is a plan view of a stator of the rotating electrical machine, and FIG. 5 is a cross-sectional view of the same stator,
FIG. 6 is a perspective view of the end bracket. 9... Stator, 91L, 9b... Stator structure, 1o. Rotor, 11.11'... End bracket, 12 Shaft, 13, 13'... Bearing section, 14.
...Joining hole, 15 ・Mounting seat plate, 16 ・Stator insertion recess notch, 17 ・Bolt. Name of agent: Patent attorney Toshio Nakao and 1 other person 1st
Figure 6

Claims (1)

[Claims] A stator made of laminated non-circular iron cores is divided at about half the laminated thickness, and the left and right stator components are displaced by an arbitrary angle to form a step on the divided plane. Providing a stator fitting recess and an outwardly protruding mounting seat plate on the mouth edge of the end bracket, fitting the protruding part forming the step of the stator structure on the near side into the stator fitting recess of each end bracket, A rotating electric machine in which a mounting seat plate is connected to a corresponding stator structure by coming into contact with a divided surface that forms a step.