CN204258462U - Stator punching - Google Patents

Abstract

The utility model relates to electric machine structure field, disclose a kind of stator punching, comprise circular body, the inner ring of described body is uniformly distributed with the notch of indent along the circumference, and described notch is provided with the mouth of a gorge towards the notch outside in direction, the body center of circle, the oblique extension in bottom from the described mouth of a gorge to notch and engage, described bottom is circular arc, the width at the mouth of a gorge is less than 7.2 millimeters, and the distance that the mouth of a gorge extends to bottom is less than 14.8 millimeters, and the arc radius of bottom is less than 4.8 millimeters.The beneficial effects of the utility model are: the notch of stator punching adopts miniaturized design, can save the winding number of turns of enamelled wire on the one hand thus reduce motor cost, and motor can also be made on the other hand to improve usefulness.

Description

Stator punching

Technical field

The utility model relates to electric machine structure field, particularly relates to stator punching.

Background technology

The stator core of current conventional motor is the overall structure of circle or similar round, and the stator punching one piece punching press of composition stator core completes, and stator punching is formed with multiple notch for being wound around enamelled wire.There is following problem in existing stator punching: the grooved of stator punching notch is comparatively large, and the enamelled wire of needs is many thus cause cost high; Meanwhile, if merely reduce the size of grooved, the winding space of enamelled wire can be caused again to diminish, cause motor performance to decline.

Utility model content

Technical problem to be solved in the utility model is: provide a kind of stator punching with reasonable size.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of stator punching, comprise circular body, the inner ring of described body is uniformly distributed with the notch of indent along the circumference, and described notch is provided with the mouth of a gorge towards the notch outside in direction, the body center of circle, the oblique extension in bottom from the described mouth of a gorge to notch and engage, described bottom is circular arc, the width at the mouth of a gorge is less than 7.2 millimeters, and the distance that the mouth of a gorge extends to bottom is less than 14.8 millimeters, and the arc radius of bottom is less than 4.8 millimeters.

Further, the width at the described mouth of a gorge is 6.4 millimeters.

Further, the distance that the described mouth of a gorge extends to described bottom is 13.3 millimeters.

Further, the arc radius of described bottom is 4.3 millimeters.

The beneficial effects of the utility model are: the notch of stator punching adopts miniaturized design, can save the winding number of turns of enamelled wire on the one hand thus reduce motor cost, and motor can also be made on the other hand to improve usefulness.

Accompanying drawing explanation

Fig. 1 is the structure chart of the stator punching of the utility model embodiment.

Fig. 2 is the partial enlarged drawing at A place in Fig. 1.

Label declaration: 10, body; 11, notch; 12, the mouth of a gorge; 13, bottom.

Embodiment

By describing technology contents of the present utility model in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.

The design of the utility model most critical is: the notch of stator punching is carried out Miniaturization Design, is conducive to reducing costs and improves motor usefulness.

Refer to Fig. 1 and Fig. 2, a kind of stator punching, comprise circular body 10, the inner ring of described body 10 is uniformly distributed with the notch 11 of indent along the circumference, and described notch 11 is provided with the mouth of a gorge 12 towards the notch outside in direction, the body center of circle, the oblique extension in bottom 13 from the described mouth of a gorge 12 to notch 11 and engage, described bottom 13 is circular arc, the width W at the mouth of a gorge 12 is less than 7.2 millimeters, and the distance D that the mouth of a gorge 12 extends to bottom is less than 14.8 millimeters, and the arc radius R of bottom 13 is less than 4.8 millimeters.

From foregoing description, the beneficial effects of the utility model are: the notch of stator punching adopts miniaturized design, can save the winding number of turns of enamelled wire on the one hand thus reduce motor cost, and motor can also be made on the other hand to improve usefulness.

Further, the optimal width W at the described mouth of a gorge 12 is 6.4 millimeters.

Further, the described mouth of a gorge 12 is 13.3 millimeters to the optimal distance D that described bottom 13 extends.

Further, the optimum arc radius R of described bottom 13 is 4.3 millimeters.

Seen from the above description, motor can be made after adopting above-mentioned size to obtain best balance between the two in enamelled wire use cost and motor performance, thus make the cost performance that motor reaches the highest.

Please refer to Fig. 1 and Fig. 2, embodiment one of the present utility model is: a kind of motor, include stator, described stator is made up of multi-disc stator punching, stator punching comprises circular body 10, the inner ring of described body 10 is uniformly distributed with the notch 11 of indent along the circumference, described notch 11 is provided with the mouth of a gorge 12 towards the notch outside in direction, the body center of circle, the oblique extension in bottom 13 from the described mouth of a gorge 12 to notch 11 and engage, described bottom 13 is circular arc, the width W at the mouth of a gorge 12 is 6.4 millimeters, the distance D that the mouth of a gorge 12 extends to bottom is 13.3 millimeters, the arc radius R of bottom 13 is 4.3 millimeters.

In sum, the stator punching that the utility model provides can be saved the winding number of turns of enamelled wire on the one hand thus reduce motor cost, and motor can also be made on the other hand to improve usefulness.

The foregoing is only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalents utilizing the utility model specification and accompanying drawing content to do; or be directly or indirectly used in relevant technical field, be all in like manner included in scope of patent protection of the present utility model.

Claims (4)

1. a stator punching, comprise circular body, the inner ring of described body is uniformly distributed with the notch of indent along the circumference, described notch is provided with the mouth of a gorge towards the notch outside in direction, the body center of circle, the oblique extension in bottom from the described mouth of a gorge to notch and engage, described bottom is circular arc, it is characterized in that, the width at the mouth of a gorge is less than 7.2 millimeters, and the distance that the mouth of a gorge extends to bottom is less than 14.8 millimeters, and the arc radius of bottom is less than 4.8 millimeters.

2. stator punching according to claim 1, is characterized in that, the width at the described mouth of a gorge is 6.4 millimeters.

3. stator punching according to claim 1, is characterized in that, the distance that the described mouth of a gorge extends to described bottom is 13.3 millimeters.

4. stator punching according to claim 1, is characterized in that, the arc radius of described bottom is 4.3 millimeters.