CN209823546U

CN209823546U - Motor without casing

Info

Publication number: CN209823546U
Application number: CN201920943281.2U
Authority: CN
Inventors: 魏生旺; 谷增祥; 王彤
Original assignee: KINETEK DESHENG MOTOR (FOSHAN SHUNDE) CO Ltd
Current assignee: KINETEK DESHENG MOTOR (FOSHAN SHUNDE) CO Ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2019-12-20
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a no shell motor. The stator is arranged between the rear end cover and the front end cover, the rear end cover is connected with the front end cover through bolts and clamps the stator tightly, limiting blocks are arranged on the inner end face of the front end cover and/or the inner end face of the rear end cover along the axial direction, limiting grooves are formed in the stator corresponding to the limiting blocks, and the limiting blocks are in concave-convex fit with the limiting grooves. The utility model relates to a rationally, restrict through the stopper between front end housing and/or rear end cap and the stator, prevent front end housing and/or rear end cap and stator relative rotation, moreover, the stopper is outer hexagon bolt, the head of outer hexagon bolt and the mutual lock in V-arrangement groove of stator, outer hexagon bolt and front end housing or rear end cap threaded connection, the V-arrangement groove comprises stator towards the breach of stepping down of punching press, and processing technology is simple, the manufacturing requirement is low, easy to carry out, with low costs.

Description

Motor without casing

Technical Field

The utility model relates to the technical field of motors, specifically relate to a no shell motor.

Background

At present, in order to save motor material cost and reduce the motor volume, cancelled the frame of motor, only fasten front end housing, stator and rear end cap with the bolt, this kind of structure has following not enough: 1. Under the condition of insufficient bolt pretightening force, the stator and the end cover relatively rotate, and in order to prevent the stator and the front end cover/the rear end cover from relatively rotating, the front end cover and/or the rear end cover and the stator are fixed by adopting a cylindrical pin, and the cylindrical pin penetrates through the front end cover and/or the rear end cover and the stator, so that the manufacturing and assembling are difficult, and the process cost is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a relative fixed, and easy-to-implement no casing motor between stator and front end housing rear end cap.

The purpose of the utility model is realized like this.

The utility model provides a no shell motor, includes rear end housing, stator and front end housing, and the stator is arranged in between rear end housing and the front end housing, and rear end housing and front end housing pass through bolted connection clamp stator, the interior terminal surface of front end housing and/or rear end housing is equipped with the stopper along the axial, and the stator surface corresponds the stopper and is equipped with the spacing groove, stopper and the unsmooth cooperation of spacing groove.

The technical scheme can be further perfected as follows.

More specifically, the limiting groove is a V-shaped groove, the limiting block is an outer hexagon bolt, a screw rod of the outer hexagon bolt is in threaded connection with the inner end face of the front end cover or the inner end face of the rear end cover, the head of the outer hexagon bolt is partially inserted into the V-shaped groove, and the V-shaped groove is partially matched with the head of the outer hexagon bolt.

More specifically, be equipped with two spacing grooves on the stator, central symmetry sets up between two spacing grooves, the stator is folded by a plurality of stator punching and is pressed and form, and the stator punching is stamped two notch of stepping down that central symmetry set up, and after a plurality of stator punching laminated into the stator, the notch of stepping down constituted the spacing groove.

The utility model relates to a rationally, restrict through the stopper between front end housing and/or rear end cap and the stator, prevent front end housing and/or rear end cap and stator relative rotation, moreover, the stopper is outer hexagon bolt, the head of outer hexagon bolt and the mutual lock in V-arrangement groove of stator, outer hexagon bolt and front end housing or rear end cap threaded connection, the V-arrangement groove comprises stator towards the breach of stepping down of punching press, and processing technology is simple, the manufacturing requirement is low, easy to carry out, with low costs.

Drawings

Fig. 1 is a schematic view of a structure of a motor without a casing.

Fig. 2 is a front view of the motor without a casing.

Fig. 3 is a schematic structural view of the front end cap.

Fig. 4 is a front view of the front end cap.

Fig. 5 is a schematic view of the structure of the stator.

Fig. 6 is a front view of the stator.

Detailed Description

The invention will be further described with reference to the following drawings and examples:

first embodiment, referring to fig. 1 to 6, a motor without a housing includes a rear end cap 1, a stator 2, and a front end cap 3. Stator 2 is equipped with two spacing grooves 20 on the surface, and central symmetry sets up between two spacing grooves 20 to, stator 2 is folded by a plurality of stator 2 towards the piece and is pressed and form, and stator 2 is stamped the breach of stepping down that has two central symmetry settings on the piece, and the breach of stepping down is stamping forming once when stator 2 is stamped the piece and is made, and a plurality of stator 2 are stamped and fold into stator 2 after, the breach of stepping down constitutes spacing groove 20.

Stator 2 is arranged between rear end housing 1 and front end housing 3, and rear end housing 1 and front end housing 3 pass through bolted connection to press from both sides tight stator 2, front end housing 3 and the interior terminal surface of rear end housing 1 all are equipped with stopper 4 along the axial, and stator 2 corresponds stopper 4 and is equipped with spacing groove 20, stopper 4 and the unsmooth cooperation of spacing groove 20.

In this embodiment, the limiting groove 20 is a V-shaped groove, the limiting block 4 is an outer hexagon bolt, the inner sides of the front end cover 3 and the rear end cover 1 extend to form an enclosure wall, a screw hole 5 is formed in the end face of the corresponding enclosure wall corresponding to the V-shaped groove, a screw rod of the outer hexagon bolt is in threaded connection with the screw hole 5 of the inner end face of the front end cover 3 or the rear end cover 1, the head of the outer hexagon bolt is partially inserted into the V-shaped groove, and the V-shaped groove is partially engaged with the head of the outer hexagon.

In the assembling process, firstly, the outer hexagon bolts are screwed on screw holes of the front end cover 3 and the rear end cover 1, then the stator 2 is assembled between the front end cover 3 and the rear end cover 1, the head parts of the outer hexagon bolts are clamped into the V-shaped grooves of the stator 2, and the front end cover 3 is connected with the rear end cover 1 through the bolts so as to clamp the stator 2.

Wherein, the bolts connecting the front end cover 3 and the rear end cover 1 can also pass through the stator 2.

Claims

1. The utility model provides a no shell motor, includes rear end housing, stator and front end housing, and the stator is arranged in between rear end housing and the front end housing, and rear end housing and front end housing pass through bolted connection and press from both sides tight stator, its characterized in that: the inner end face of the front end cover and/or the inner end face of the rear end cover are/is provided with limiting blocks along the axial direction, limiting grooves are formed in the surfaces of the stators corresponding to the limiting blocks, and the limiting blocks are in concave-convex fit with the limiting grooves.

2. The machine housing-less motor of claim 1, wherein: the limiting groove is a V-shaped groove, the limiting block is an outer hexagon bolt, a screw rod of the outer hexagon bolt is in threaded connection with the inner end face of the front end cover or the inner end face of the rear end cover, the head part of the outer hexagon bolt is inserted into the V-shaped groove, and the V-shaped groove is partially matched with the head part of the outer hexagon bolt.

3. The machine housing-less motor of claim 1, wherein: the stator is provided with two limiting grooves, the two limiting grooves are arranged in a centrosymmetric mode, the stator is formed by laminating a plurality of stator punching sheets, two abdicating notches which are arranged in a centrosymmetric mode are punched in the stator punching sheets, and after the stator is formed by laminating the stator punching sheets, the abdicating notches form the limiting grooves.