CN203243128U

CN203243128U - Iron core end plate

Info

Publication number: CN203243128U
Application number: CN 201320120985
Authority: CN
Inventors: 翁伟涛; 徐建洪; 吴军; 王俊; 李萍
Original assignee: JIANGSU CHANGQIAN MOTOR CO Ltd; New United Group Co Ltd
Current assignee: New United Rail Transit Technology Co Ltd; New United Group Co Ltd
Priority date: 2013-03-18
Filing date: 2013-03-18
Publication date: 2013-10-16
Anticipated expiration: 2023-03-18

Abstract

The utility model discloses an iron core end plate. The end plates are arranged at two ends of a stator and a rotor core. The end plate is provided with a plurality of grooves corresponding to groove positions of the stator and the rotor core. Tooth portions of the end plate are formed between the adjacent grooves. The end plate is composed of two overlapped annular steel plates with a thickness of 0.5-1.5 mm. The end plate bends in the direction of the stator and the rotor core at a place near to the bottom of the groove to form a frustum bending portion. The axial distance of the bending portion along the end plate is preferably 2-5 mm. The end plate is composed of two annular steel plates with a thickness of 0.5-1.5 mm for each and superposed and fixed together by spot welding in the diameter direction with a distance of 20-40 mm. The iron core end plate can prevent the stator and the rotor core from tooth swelling and tooth broken accidents, prevent damage of insulation at motor groove, and extend the life of the motor.

Description

A kind of core end plate

Technical field

The utility model relates to a kind of parts of motor, particularly relates to the end plate of a kind of motor stator, rotor core.

Background technology

The stator of motor, when rotor iron core laminated, because the silicon steel sheet thickness that most motor stators, rotor core adopt is 0.35mm or 0.5mm, after silicon steel sheet was gone out groove, tooth root part intensity was lower, after laminating certain-length, the perk of tooth section easily occurs and flick.Prevent that at present the measure that tooth section flicks from being at the thicker steel end plate of iron core two ends used thickness, utilize thick end plate to compress iron core teeth section, but when laminating, because end plate discontinuity, iron core produces easily that tooth rises, the problem of broken teeth, and because the thickness of end plate is thicker, so that the waste of eddy current increases and caloric value increases, thereby cause the damage of motor slot place insulation and the shortening in useful life.

Summary of the invention

The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, provides a kind of stator, rotor core of preventing to occur when laminating that tooth rises, the broken teeth accident, and can avoid motor slot place insulation damages, prolongs the motor core end plate in useful life.

For solving the problems of the technologies described above, the utility model adopts a kind of like this core end plate, this end plate is arranged on the two ends of stator, rotor core, offer several grooves corresponding with stator, rotor core groove position at this end plate, between adjacent groove, form the tooth section of end plate on this end plate, this end plate is made of two annular steel plates that are superimposed together of every thickness between 0.5～1.5 millimeter, and this end plate forms the taper type bending part at the bottom land place of adjacent trenches to described stator, the bending of rotor core direction.

In the utility model, described bending part is preferably 2～5 millimeters along the axial distance of end plate.

In the utility model, described end plate can be separated by 20～40 millimeters between 0.5～1.5 millimeter and in tooth section diametric(al) by every thickness and be consisted of by superimposed two the annular steel plates that are fixed together of spot welding.

The thickness of every annular steel plate of the present utility model preferably is 1 millimeter.

The width of groove and the degree of depth are all greater than 1～3 millimeter of the width of stator, rotor core groove and the degree of depth on the end plate of the present utility model.

After adopting said structure, because end plate of the present utility model forms the taper type bending part at the bottom land place of adjacent trenches to stator, the bending of rotor core direction, described bending part is preferably 2～5 millimeters along the axial distance of end plate, therefore, in the iron core laminated process, because the end plate bending part at first contacts with iron core teeth section, laminate put in place after, end plate is pressed into a plane, end plate bending part generation deformation, this moment, the end plate bending part was pressed in iron core teeth section tightly under the active force of deformation, thereby had prevented that effectively tooth from rising, the generation of broken teeth.And, because end plate of the present utility model is made of two annular steel plates that are superimposed together of every thickness between 0.5～1.5 millimeter, the thickness of described every annular steel plate is preferably 1 millimeter, thereby the thinner thickness of end plate, the larger eddy current loss that has produced when having avoided adopting steel plate, reduce caloric value, avoided the insulation of motor slot place is caused damage, prolonged the useful life of motor.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a kind of structural representation of the utility model core end plate.

Fig. 2 is along the cutaway view of A-A line among Fig. 1.

Fig. 3 is a kind of schematic perspective view of the utility model core end plate.

Fig. 4 is the another kind of structural representation of the utility model core end plate.

Fig. 5 is along the partial sectional view of B-B line among Fig. 4.

Fig. 6 is the another kind of schematic perspective view of the utility model core end plate.

Fig. 7 is the structural representation that the utility model core end plate is installed in the stator core two ends.

Fig. 8 is the structural representation that the utility model core end plate is installed in the rotor core two ends.

Embodiment

Referring to Fig. 1 to a kind of core end plate shown in Figure 8, this end plate 1 is arranged on stator core 2, the two ends of rotor core 3, this end plate 1 offer several with at stator core 2, the groove 1-1 that rotor core 3 groove positions are corresponding, between adjacent groove 1-1, form the 1-2 of tooth section of end plate 1 on this end plate 1, this end plate 1 is made of two annular steel plate 1a that are superimposed together of every thickness between 0.5～1.5 millimeter, this end plate 1 at the bottom land 1-1-1 place of adjacent trenches 1-1 to described stator core 2, rotor core 3 direction bendings form taper type bending part 1-3.

In the utility model, shown in Fig. 2,5, described bending part 1-3 is preferably 2～5 millimeters along the axial distance D of end plate 1.

End plate of the present utility model 1 preferably is separated by 20～40 millimeters between 0.5～1.5 millimeter and in tooth section diametric(al) by every thickness and is consisted of by superimposed two the annular steel plate 1a that are fixed together of spot welding.

In the utility model, the thickness of every annular steel plate 1a preferably is 1 millimeter.

The width of groove 1-1 and the degree of depth are all greater than 1～3 millimeter of the width of stator core 2, rotor core 3 grooves and the degree of depth on the end plate 1 of the present utility model.

As shown in Figure 7, when stator core 2 laminates, end plate 1 is placed at two ends at stator core 2, the bending part 1-3 of end plate 1 is towards stator core 2 sides, then place the stator pressing ring 4 of annular in the outside of end plate 1, above stacked each good parts are adopted the hydraulic press pressurization, iron core 2 is depressed into specific length, the end plate 1 of iron core 2 both sides is driven plain simultaneously, at this moment, deformation occurs in the bending part 1-3 of end plate 1, and bending part 1-3 is pressed in stator core 2 tooth sections tightly under the active force of deformation, thereby has prevented that effectively tooth from rising, the generation of broken teeth.

As shown in Figure 8, when rotor core 3 laminates, end plate 1 is placed at two ends at rotor core 3, the bending part 1-3 of end plate 1 is towards rotor core 3 sides, then place the rotor pressing ring 5 of annular in the outside of end plate 1, above stacked each good parts are adopted the hydraulic press pressurization, iron core 3 is depressed into specific length, the end plate 1 of iron core 3 both sides is driven plain simultaneously, at this moment, deformation occurs in the bending part 1-3 of end plate 1, and bending part 1-3 is pressed in rotor core 3 tooth sections tightly under the active force of deformation, thereby has prevented that effectively tooth from rising, the generation of broken teeth.

Claims

1. core end plate, this end plate (1) is arranged on stator, the two ends of rotor core, offer several and stator at this end plate (1), the groove (1-1) that rotor core groove position is corresponding, the upper tooth section (1-2) that between adjacent groove (1-1), forms end plate (1) of this end plate (1), it is characterized in that: this end plate (1) is made of two annular steel plates (1a) that are superimposed together of every thickness between 0.5～1.5 millimeter, and this end plate (1) is located to described stator at the bottom land (1-1-1) of adjacent trenches (1-1), the bending of rotor core direction forms taper type bending part (1-3).

2. core end plate according to claim 1, it is characterized in that: described bending part (1-3) is 2～5 millimeters along the axial distance (D) of end plate (1).

3. core end plate according to claim 1 is characterized in that: described end plate (1) is separated by 20～40 millimeters between 0.5～1.5 millimeter and in tooth section diametric(al) by every thickness and is consisted of by superimposed two the annular steel plates (1a) that are fixed together of spot welding.

4. core end plate according to claim 1, it is characterized in that: the thickness of every annular steel plate (1a) is 1 millimeter.

5. each described core end plate in 4 according to claim 1 is characterized in that: the width of the upper groove (1-1) of described end plate (1) and the degree of depth are all greater than 1～3 millimeter of the width of stator, rotor core groove and the degree of depth.