CN104659945A - Rotary Motor - Google Patents

Abstract

A rotary motor of the present invention enables the external diameter to be reduced. The motor of the present invention comprises a support (1), a shell (3), a stator (5)and a stator frame (4),wherein an opening part of the shell is covered by the support (1) and is fixed to the support (1), and the shell possesses a cylindrical shell main body and a cover part (9); the stator (5) is accepted in the shell main body (8) and possesses a stator iron core (11) and a coil (12) wound and arranged on the stator iron core (11), and the stator frame (4) possesses a frame main body (16) covering the whole periphery of the stator (5) and a flange part (17) formed at the side reverse with the support (1), and the stator (5) is fixed to the shell to be supported by the flange part (7).

Description

Electric rotating machine

Technical field

The rotor frame that the present invention relates to a kind of covering stator is fixed on the electric rotating machine of shell.

Background technology

Current known a kind of electric rotating machine, it has flange part in one end of the rotor frame of covering stator, and utilizes screw that this flange part is fixed on shell, and stator is held in (such as with reference to patent documentation 1) in shell by rotor frame.

Prior art document

Patent documentation

Patent documentation 1: Japanese Patent Laid-Open 2012-157180 publication (Fig. 1)

In the electric rotating machine of said structure, first, the flange part of the rotor frame of covering stator is screwed at the peristome place of shell.

Then, inserting rotor from the peristome of shell towards stator being held in inner shell by rotor frame, carrying out the center contraposition of rotor and stator, finally, being screwed support in the mode of the peristome of covering shell.

Therefore, in the peristome side of shell, there is in the outside of the fixed part based on screw of rotor frame and shell the fixed part based on screw of support and shell, thus there is outside dimension and expand such problem.

Summary of the invention

The present invention is to solve the problem a little for technical problem, its object is to obtain a kind of electric rotating machine, by the fixed part of rotor frame and shell and support are located at shell both sides in the axial direction with the fixed part of shell in the mode of separating, reduce outside dimension.

Electric rotating machine of the present invention comprises: support; Shell, the peristome of this shell is covered by above-mentioned support and is fixed on this support, and this shell has housing main body and the bottom surface sections of drum; Stator, this stator is accommodated in the inside of above-mentioned housing main body, and has the coil that stator core and winding are installed on this stator core; And rotor frame, this rotor frame has the chassis body covered by the complete cycle of said stator and the joggling part being formed at the side contrary with above-mentioned support, and said stator is fixed on above-mentioned shell by above-mentioned joggling part and is supported.

According to electric rotating machine of the present invention, in the opposite side of the support fixed in the mode of the peristome of covering shell, the joggling part of the rotor frame of covering stator is fixed on shell, the fixed part of rotor frame and shell and support are located at shell both sides in the axial direction with the fixed part of shell in the mode of separating, therefore, outside dimension can be reduced.

Accompanying drawing explanation

Fig. 1 is the sectional side view of the motor representing embodiment of the present invention one.

Fig. 2 is the sectional side view of the motor representing comparative example.

Fig. 3 is the sectional side view of the motor representing embodiment of the present invention two.

Fig. 4 is the sectional side view of the motor representing embodiment of the present invention three.

(symbol description)

1 support

2 screws

3 shells

4 rotor frames

5 stators

6 axles

7 rotors

8 housing main bodies

9 caps (bottom surface sections)

10 screws

11 stator cores

12 coils

13 terminals

14,14A keeper

15 connecting portions

16 chassis body

17 flange parts (joggling part)

18 fixtures

19 extensions

20 supporting members

Embodiment

Below, the motor of each execution mode of the present invention is described, but in the various figures same or equivalent component, position mark same-sign is illustrated.

Execution mode one

Fig. 1 is the sectional side view of the motor representing embodiment of the present invention one.

This motor as electric rotating machine comprises: the support 1 of circular plate shape; Shell 3, the peristome of this shell 3 is covered by support 1 and is fixed by screw 2; Stator 5, this stator 5 is accommodated in shell 3; Rotor frame 4, this rotor frame 4 hot charging or press-in stator 5; Axle 6, this axle 6 runs through the central axis of support 1; And rotor 7, this rotor 7 is fixed on axle 6.

Shell 3 comprises the housing main body 8 of drum and bottom surface sections and cap 9.

Said stator 5 comprises: stator core 11, and this stator core 11 is formed by being folded by sheet steel flaggy; Coil 12, this coil 12 is grooving (not shown) by being extended on the axis direction in stator core 11 by Wire-wound and forms; Terminal 13, this terminal 13 is electrically connected with coil 12 at connecting portion 15 place; The keeper 14 of ring-type, this keeper 14 keeps terminal 13, and its cross section is コ word shape and extends in the circumferential; And the fixture 18 of ring-type, this fixture 18 is pressed into the inner circumferential wall of rotor frame 4 in the mode abutted with the peripheral end face of keeper 14, and keeps keeper 14.

Rotor frame 4 comprises: the chassis body 16 of the cylindrical shape be made up of metal; And be formed at joggling part and the flange part 17 of the side contrary with support 1.

Flange part 17 is sandwiched between the side end face of housing main body 8 and the outer circumferential side edge of cap 9, utilizes multiple screw 10 to make shell 3 and lid 9 across flange part 17 integration, thus is fixed by stator 5, is held in shell 3.

In the motor of present embodiment, using terminal 13 as near installation personnel side from after a side of the housing main body 8 of drum inserts hot charging or press-in has the stator 5 of rotor frame 4, the flange part 17 of rotor frame 4 is clipped between cap 9 and housing main body 8, and uses screw 10 to be fixed in shell 3.

Then, the rotor 7 being held in axle 6 is inserted in stator 5 from the side contrary with cap 9 of housing main body 8, and with the center contraposition of shell 3 after, use multiple screw 2 that support 1 is fixed on shell 3.

Motor according to the present embodiment, the fixed part based on screw 10 and the support 1 of rotor frame 4 and shell 3 are located at shell 3 both sides in the axial direction with the fixed part based on screw 2 of shell 3 in the mode of separating, and therefore, can reduce outside dimension.

Fig. 2 is the sectional side view of the motor represented for the comparative example compared with the motor of execution mode one.

In this reference example, in support 1 side of shell 3A, the flange part 17 of rotor frame 4 uses screw 10 to be fixed on shell 3A.

The fixed part of this screw 10 is the inside lines of edge, periphery using screw 2 support 1 to be fixed on shell 3A, shell 3A, compared with the motor of execution mode one, correspondingly expands shell 3A size diametrically.

In addition, motor according to the present embodiment, the connecting portion 15 that coil 12 is connected with the terminal 13 of powering towards coil 12 is set as near flange part 17, because of the vibration of stator 5 that is basic point with flange part 17 and the displacement of the connecting portion 15 produced suppressed, improve the durability of connecting portion 15 Resisting fractre.

In addition, shell 3 is split into housing main body 8 and bottom surface sections and cap 9, by clamping flange part 17 with housing main body 8 and cap 9, being held in simply in shell 3 by stator 5, thus improve assembleability by rotor frame 4.

In addition, between the inner circumferential wall and the periphery wall of chassis body 16 of housing main body 8, there is gap, this improves the cooling of stator 5.

Execution mode two

Fig. 3 is the sectional side view of the motor representing embodiment of the present invention two.

In the present embodiment, the outside left of keeper 14A extends in the axial direction, and in midway towards radial outside direction warpage, thus has the extension 19 that the flange part 17 along rotor frame 4 extends.

This extension 19 is sandwiched between housing main body 8 and cap 9 together with flange part 17, and is fixed by screw 10.

Other structures are identical with the motor of execution mode one.

In the present embodiment, screw 10 is also used for and keeper 14A is fixed on rotor frame 4, without the need to the fixture 18 used in execution mode one, can cut down parts count.

In addition, by use screw 10 by the extension 19 of keeper 14A and the flange part 17 of rotor frame 4 jointly fastening, can realize assembling simplification.

Execution mode three

Fig. 4 is the sectional side view of the motor representing embodiment of the present invention three.

In the present embodiment, be pressed in the gap of the outer peripheral face of rotor frame 4 and the inner circumferential wall of housing main body 8 in the side contrary with flange part 17 and be embedded with the supporting member 20 of ring-type.

Other structures are identical with the motor of execution mode two.

In execution mode one and execution mode two, stator 5 with the flange part 17 of rotor frame 4 be basic point by cantilever support, when the length of the axis direction of stator 5, the load of flange part 17 is strained greatly mutually.

To this, also can consider arranging same flange part with the opposite side of flange part 17, but this can cause the radial dimension of shell 3 to expand as shown in Figure 2.

In the present embodiment, utilize and the outer peripheral face of rotor frame 4 of flange part 17 opposite side and the gap of the inner circumferential wall of housing main body 8, by arranging supporting member 20 in the gap, stator 5 is supported at flange part 17 and these 2 places of supporting member 20, do not expand the size of the radial direction of shell 3, just can alleviate the load to flange part 17.

In addition, stator 5 is realized by the flange part 17 of rotor frame 4 relative to the location of shell 3 on axis and circumference, as long as supporting member 20 is pressed into the gap between the outer peripheral face of rotor frame 4 and the inner circumferential wall of housing main body 8.

In addition, the jut in landfill gap also circumferentially can be set, to replace supporting member 20 at housing main body 8 or chassis body 16.

In addition, in the respective embodiments described above, as electric rotating machine, be illustrated with the example of motor, but also can be generator.

In addition, this joggling part towards radial outside direction warpage, but also by the joggling part of rotor frame towards radially inner side direction warpage, and can be fixed on cap by the joggling part of rotor frame 4 and flange part 17.

In addition, shell 3 is formed to be divided into the mode of housing main body 8 and bottom surface sections and cap 9, but housing main body and bottom surface sections also can be one.

In addition, also can be electric rotating machine very close to each other between shell 3 and rotor frame 4.

Claims (6)

1. an electric rotating machine, is characterized in that, comprising:

Support;

Shell, the peristome of this shell is covered by support and is fixed on this support, and this shell has housing main body and the bottom surface sections of drum;

Stator, this stator is accommodated in the inside of described housing main body, and has the coil that stator core and winding are installed on this stator core; And

Rotor frame, this rotor frame has the chassis body covered by the complete cycle of described stator and the joggling part being formed at the side contrary with described support,

Described stator is fixed on described shell by described joggling part and is supported.

2. electric rotating machine as claimed in claim 1, is characterized in that,

Terminal towards described coil power supply is located at described stator core side in the axial direction and described joggling part side.

3. electric rotating machine as claimed in claim 1 or 2, is characterized in that,

Described shell divide becomes described housing main body and described bottom surface sections, is clipped between housing main body and described bottom surface sections towards the described joggling part of radial outside warpage and flange part.

4. electric rotating machine as claimed in claim 3, is characterized in that,

Keep the keeper towards the terminal of described coil power supply to have the extension extended along described flange part, this extension and described flange part are clipped between described housing main body and described bottom surface sections under the state of overlap.

5. electric rotating machine as claimed in claim 1 or 2, is characterized in that,

Gap is there is between the inner circumferential wall and the periphery wall of described chassis body of described housing main body.

6. electric rotating machine as claimed in claim 5, is characterized in that,

The support of ring-type is embedded with the position of described joggling part opposite side in described gap.