CN216672682U - Permanent magnet synchronous motor stator - Google Patents

Abstract

The invention discloses a permanent magnet synchronous motor stator, and belongs to the technical field of permanent magnet synchronous motors. The permanent magnet synchronous motor stator comprises split type stator teeth (10) and a stator support base (12), wherein the split type stator teeth (10) which are connected with each other are arranged on the stator support base (12). Compared with the prior art, the invention has the characteristics of simple structure, reliable performance, high cost performance and the like. The insulating end plate of the invention replaces a glass fiber cloth plate in the prior art and obtains better technical effect.

Description

Permanent magnet synchronous motor stator

Technical Field

The invention belongs to the technical field of permanent magnet synchronous motors, and particularly belongs to a permanent magnet synchronous motor stator in a permanent magnet synchronous motor.

Background

When a segmented stator tooth iron core 7 (shown in fig. 1) in a permanent magnet synchronous motor in the prior art is wound, in order to achieve the purpose of insulation, generally, insulating materials are arranged on two end faces of the segmented stator tooth iron core 7, generally, high-temperature-resistant insulating materials such as a glass fiber cloth plate 8 are arranged on the two end faces of the segmented stator tooth iron core 7, and the glass fiber cloth plate 8 needs to be connected and fixed on the two end faces of the segmented stator tooth iron core 7 by using a high-temperature adhesive tape; the technical effect of the connection fixing mode is not ideal, the effect of fixing the glass fiber cloth plate 8 by using the high-temperature adhesive tape is not good, the spliced stator tooth iron core 7 may cause the glass fiber cloth plate 8 to displace due to stress in the copper wire winding process, and finally, the spliced stator tooth iron core 7 has bad phenomena of pressure resistance and the like, so that the winding failure rate of the spliced stator tooth iron core 7 is greatly increased, and the winding efficiency is reduced.

Disclosure of Invention

The invention provides a permanent magnet synchronous motor stator for effectively solving the technical problems.

The invention relates to a permanent magnet synchronous motor stator which is characterized by comprising split type stator teeth and a stator support seat, wherein the split type stator teeth which are connected with each other are arranged on the stator support seat, wherein:

any one of the split stator teeth comprises a split stator tooth iron core, two insulating end plates and a group of stator tooth windings, wherein the two insulating end plates are used for respectively fastening and clamping two ends of the split stator tooth iron core, and the group of stator tooth windings are wound on the split stator tooth iron core after the two insulating end plates are arranged;

the insulating end plate comprises an inner diameter baffle, an outer diameter baffle, an end surface insulating plate, an outer diameter base and an inner diameter base, the inner diameter baffle and the outer diameter baffle are respectively arranged at two ends of the insulating end plate, and the end surface insulating plate is arranged in the middle of the insulating end plate;

the inner diameter baffle, the outer diameter baffle and the end face insulation plate are matched with the block type stator tooth iron core, and the end face insulation plate is also matched with the stator tooth end face of the block type stator tooth iron core.

According to the permanent magnet synchronous motor stator, preferably, the insulating end plates on the spliced stator teeth are provided with insulating plate contact end faces on the end face insulating plates, one of the two ends of the spliced stator tooth iron core is in close insulating contact fit with one of the end faces of the spliced stator tooth iron core, and the other of the two ends of the spliced stator tooth iron core is in close insulating contact fit with the insulating plate contact end face of the insulating end plate and the other end face of the spliced stator tooth iron core.

According to above PMSM stator, preferably, on the piece together formula stator tooth insulating end plate all be provided with first clamp terminal surface and the tight terminal surface of second clamp on the terminal surface insulating plate, be provided with the first middle part contact terminal surface of stator tooth and the contact terminal surface of stator tooth second middle part on the piece together formula stator tooth iron core, first clamp terminal surface on the insulating end plate the tight terminal surface of second clamp respectively with the first middle part contact terminal surface of stator tooth on the piece together formula stator tooth iron core, perhaps the contact terminal surface of stator tooth second middle part cooperatees, wherein:

the first clamping end face of one insulating end plate at two ends of the split block type stator tooth iron core is in close contact fit with the first middle contact end face of the stator tooth, and the second clamping end face is in close contact fit with the second middle contact end face of the stator tooth;

and the first clamping end face of the other insulating end plate at the two ends of the split block type stator tooth iron core is in close contact fit with the second middle contact end face of the stator tooth, and the second clamping end face is in close contact fit with the first middle contact end face of the stator tooth.

According to the permanent magnet synchronous motor stator, preferably, a first inner diameter clamping end face and a second inner diameter clamping end face are arranged on the inner diameter baffle of any insulating end plate on any one of the split block type stator teeth, the first inner diameter clamping end face and the end face insulating plate are obliquely arranged, and the second inner diameter clamping end face and the end face insulating plate are obliquely arranged; the split block type stator tooth iron core is provided with a first inner diameter contact end surface of the stator tooth and a second inner diameter contact end surface of the stator tooth; on the insulating end plate first internal diameter presss from both sides tight terminal surface, second internal diameter press from both sides tight terminal surface with the first internal diameter contact terminal surface of stator tooth on the piece together formula stator tooth iron core, or stator tooth second internal diameter contact terminal surface cooperate, wherein:

the first inner diameter clamping end face of one insulating end plate at two ends of the split block type stator tooth iron core is in close contact fit with the first inner diameter contact end face of the stator tooth, and the second inner diameter clamping end face is in close contact fit with the second inner diameter contact end face of the stator tooth;

and the other one of the two ends of the split block type stator tooth iron core is provided with a first inner diameter clamping end face and a second inner diameter contact end face of the stator tooth, which are in close contact fit, and the second inner diameter clamping end face and the first inner diameter contact end face of the stator tooth are in close contact fit.

According to the permanent magnet synchronous motor stator, preferably, the outer diameter baffle of any insulation end plate on any one of the split stator teeth is provided with a first outer diameter clamping end face and a second outer diameter clamping end face, and the split stator tooth iron core is provided with a stator tooth first outer diameter contact end face and a stator tooth second outer diameter contact end face; the insulating end plate is last the tight terminal surface of first external diameter clamp, the tight terminal surface of second external diameter clamp with the first external diameter contact terminal surface of stator tooth on the piece formula stator tooth iron core, or stator tooth second external diameter contact terminal surface cooperate, wherein:

the first outer diameter clamping end face of the other insulating end plate at two ends of the split block type stator tooth iron core is in close contact fit with the first outer diameter contact end face of the stator tooth, and the second outer diameter clamping end face is in close contact fit with the second outer diameter contact end face of the stator tooth;

and the other end of the two ends of the split block type stator tooth iron core is provided with a first outer diameter clamping end face and a second outer diameter contact end face which are in close contact fit with each other, and the second outer diameter clamping end face is in close contact fit with the first outer diameter contact end face of the stator tooth.

According to the stator of the permanent magnet synchronous motor, the insulating end plate is preferably made of an insulating heat-resistant material.

According to the permanent magnet synchronous motor stator, preferably, the outer diameter base and the inner diameter base are oppositely arranged, the outer diameter base and the outer diameter baffle are connected, and the inner diameter base and the inner diameter baffle are connected.

According to the permanent magnet synchronous motor stator, preferably, the outer diameter base and the inner diameter base of any one of the insulation end plates on the split block type stator teeth limit the stator teeth winding on the split block type stator teeth together.

According to the permanent magnet synchronous motor stator, preferably, the outer diameter baffle is provided with a winding through hole for passing through the stator tooth winding.

According to the permanent magnet synchronous motor stator, preferably, the block type stator teeth comprise stator tooth splicing convex grooves and stator tooth splicing grooves, the stator tooth splicing convex grooves on any block type stator tooth on the stator support seat are matched with the stator tooth splicing grooves on the block type stator teeth on one adjacent side, and the stator tooth splicing grooves on the block type stator teeth on the other adjacent side are matched with the stator tooth splicing convex grooves on the block type stator teeth on the other adjacent side.

Compared with the prior art, the invention has the characteristics of simple structure, reliable performance, high cost performance and the like. The insulating end plate of the invention replaces a glass fiber cloth plate in the prior art and obtains better technical effect.

Drawings

FIG. 1 is a schematic structural view of a segment type stator tooth in the prior art;

FIG. 2A is a first schematic view of the insulating end plate of the present invention;

FIG. 2B is a second schematic structural view of the insulating end plate of the present invention;

FIG. 2C is a third schematic view of the insulating end plate of the present invention;

FIG. 2D is a fourth schematic view of the insulating end plate of the present invention;

FIG. 2E is a fifth schematic view of the insulating end plate of the present invention;

FIG. 2F is a sixth schematic view of the insulating end plate of the present invention;

FIG. 3A is a first schematic view of an assembly of an insulating end plate for a segment type stator tooth according to the present invention;

FIG. 3B is a second schematic view of the assembly of the insulating end plate for the segment type stator tooth core of the present invention;

FIG. 3C is a schematic cross-sectional view of a piece-wise stator tooth core according to the present invention;

FIG. 3D is a schematic sectional view of the assembly of the insulating end plate and the segment type stator tooth core according to the present invention;

FIG. 3E is a schematic plan view of an unwrapped segmented stator tooth in accordance with the present invention;

FIG. 3F is a schematic plan view of a segmented stator tooth with winding in accordance with the present invention;

FIG. 4A is a schematic structural view of the block-type stator teeth assembly of the present invention;

FIG. 4B is an enlarged partial schematic view of FIG. 4A;

FIG. 4C is a schematic view of a structure of the split type stator teeth with winding according to the present invention;

FIG. 4D is an enlarged partial schematic view of FIG. 4C;

FIG. 4E is a schematic structural view of a PMSM stator according to the present invention;

fig. 4F is a partially enlarged structural view of fig. 4E.

Detailed Description

Fig. 2A, fig. 2B, fig. 2C, fig. 2D, fig. 2E and fig. 2F are schematic perspective views of insulating end plates for a segmented stator tooth of the present invention, wherein the insulating end plate 1 includes an inner diameter baffle 101, an outer diameter baffle 102, an end surface insulating plate 103, an outer diameter base 104 and an inner diameter base 105; the insulating end plates 1 arranged at two ends of the split block type stator teeth 10 are respectively provided with an inner diameter baffle 101 and an outer diameter baffle 102, and the middle parts of the insulating end plates 1 are provided with end surface insulating plates 103; the inner diameter baffle 101, the outer diameter baffle 102 and the end face insulating plate 103 of each insulating end plate 1 are respectively matched with a first middle contact end face 7031 of a stator tooth, a second middle contact end face 7032 of the stator tooth and an end face 7033 of a stator tooth at one end of the split stator tooth iron core 7, and the end face insulating plate 103 is in close contact fit with a corresponding stator tooth end face 7033 on the split stator tooth iron core 7.

An inner diameter baffle 101 and an outer diameter baffle 102 are respectively arranged at two ends of the insulating end plate 1, and an end surface insulating plate 103 is arranged in the middle of the insulating end plate 1; the outer diameter base 104 is matched and tightly connected with one end face of the split block type stator tooth iron core 7; the inner diameter baffles 101 of all the split type stator tooth iron cores 7 form the inner diameter of a stator of the permanent magnet synchronous motor, the outer diameter baffles 102 of all the split type stator tooth iron cores 7 form the outer diameter of the stator of the permanent magnet synchronous motor, and the end surface insulating plates 103 are matched with the split type stator tooth iron cores 7.

The end surface insulating plate 103 is provided with a first clamping end surface 1031 and a second clamping end surface 1032, the first clamping end surface 1031 is matched with a first middle contact end surface 7031 of the stator teeth or a second middle contact end surface 7032 of the stator teeth on the split stator tooth iron core 7, and the second clamping end surface 1032 is matched with a first middle contact end surface 7031 of the stator teeth or a second middle contact end surface 7032 of the stator teeth on the split stator tooth iron core 7. The first clamping end surface 1031 is in close contact fit with the first middle contact end surface 7031 of the stator teeth or the second middle contact end surface 7032 of the stator teeth, and the second clamping end surface 1032 is in close contact fit with the first middle contact end surface 7031 of the stator teeth or the second middle contact end surface 7032 of the stator teeth, so that the insulating end plate 1 and the split type stator tooth iron core 7 can be tightly attached together at the positions.

Can be tightly fitted together.

The first inner diameter clamping end face 1011 is obliquely arranged with the end face insulating plate 103, and the first inner diameter clamping end face 1011 is obliquely arranged with the first clamping end face 1031 on the end face insulating plate 103; the second inner diameter clamping end face 1012 is obliquely arranged with the end face insulating plate 103, and the second inner diameter clamping end face 1012 is obliquely arranged with the second clamping end face 1032 on the end face insulating plate 103. An inclined disposition between the first inner diameter clamping end surface 1011 and the first clamping end surface 1031, and an inclined disposition between the second inner diameter clamping end surface 1012 and the second clamping end surface 1032; correspondingly, the stator tooth first inner diameter contact end 7011 and the stator tooth first middle contact end 7031 are in an inclined relationship, and the stator tooth second inner diameter contact end 7012 and the stator tooth second middle contact end 7032 are in an inclined relationship. The first inner diameter clamping end face 1011 and the second inner diameter clamping end face 1012 symmetrically apply clamping forces to the stator tooth first inner diameter contact end face 7011 and the stator tooth second inner diameter contact end face 7012; the acting force between the first inner diameter clamping end face 1011 and the first inner diameter contact end face 7011 of the stator tooth, the acting force between the second inner diameter clamping end face 1012 and the second inner diameter contact end face 7012 of the stator tooth, and the two acting forces simultaneously and commonly apply the action to the first inner diameter contact end face 7011 and the second inner diameter contact end face 7012 of the stator tooth, so that an excellent fixing effect is obtained; the obliquely arranged first inner diameter clamping end surface 1011 and the obliquely arranged second inner diameter clamping end surface 1012 can achieve better fastening and clamping effects.

The inner diameter baffle 101 is provided with a first inner diameter clamping end face 1011 and a second inner diameter clamping end face 1012, the first inner diameter clamping end face 1011 is matched with a first inner diameter contact end face 7011 of a stator tooth or a second inner diameter contact end face 7012 of the stator tooth on the split stator tooth iron core 7, and the second inner diameter clamping end face 1012 is matched with a first inner diameter contact end face 7011 of the stator tooth or a second inner diameter contact end face 7012 of the stator tooth on the split stator tooth iron core 7. The first inner diameter clamping end surface 1011 is in close contact fit with the first inner diameter contact end surface 7011 of the stator teeth or the second inner diameter contact end surface 7012 of the stator teeth, and the second inner diameter clamping end surface 1012 is in close contact fit with the first inner diameter contact end surface 7011 of the stator teeth or the second inner diameter contact end surface 7012 of the stator teeth, so that the insulating end plate 1 and the segmented stator tooth iron core 7 can be tightly connected together at the positions.

The outer diameter baffle plate 102 is provided with a first outer diameter clamping end face 1021 and a second outer diameter clamping end face 1022, the first outer diameter clamping end face 1021 is matched with a first outer diameter contact end face 7021 of a stator tooth or a second outer diameter contact end face 7022 of the stator tooth on the split type stator tooth iron core 7, and the second outer diameter clamping end face 1022 is matched with a first outer diameter contact end face 7021 of the stator tooth or a second outer diameter contact end face 7022 of the stator tooth on the split type stator tooth iron core 7. The first outer diameter clamping end surface 1021 is in close contact fit with the first outer diameter contact end surface 7021 of the stator teeth or the second outer diameter contact end surface 7022 of the stator teeth, the second outer diameter clamping end surface 1022 is in close contact fit with the first outer diameter contact end surface 7021 of the stator teeth or the second outer diameter contact end surface 7022 of the stator teeth, and the insulating end plate 1 and the block type stator tooth iron core 7 are tightly combined together at the position.

The first inner diameter clamping end surface 1011 is obliquely arranged with the end surface insulating plate 103, and the first inner diameter clamping end surface 1011 is obliquely arranged with the first clamping end surface 1031 on the end surface insulating plate 103; the second inner diameter clamping end face 1012 is obliquely arranged with the end face insulating plate 103, and the second inner diameter clamping end face 1012 is obliquely arranged with the second clamping end face 1032 on the end face insulating plate 103. An inclined disposition between the first inner diameter clamping end surface 1011 and the first clamping end surface 1031, and an inclined disposition between the second inner diameter clamping end surface 1012 and the second clamping end surface 1032; correspondingly, the stator tooth first inner diameter contact end 7011 and the stator tooth first middle contact end 7031 are in an inclined relationship, and the stator tooth second inner diameter contact end 7012 and the stator tooth second middle contact end 7032 are in an inclined relationship. The first inner diameter clamping end face 1011 and the second inner diameter clamping end face 1012 symmetrically apply clamping forces to the stator tooth first inner diameter contact end face 7011 and the stator tooth second inner diameter contact end face 7012; the acting force between the first inner diameter clamping end face 1011 and the first inner diameter contact end face 7011 of the stator tooth, the acting force between the second inner diameter clamping end face 1012 and the second inner diameter contact end face 7012 of the stator tooth, and the two acting forces simultaneously and commonly apply the action to the first inner diameter contact end face 7011 and the second inner diameter contact end face 7012 of the stator tooth, so that an excellent fixing effect is obtained; the obliquely arranged first inner diameter clamping end surface 1011 and the obliquely arranged second inner diameter clamping end surface 1012 can enable the inner diameter baffle 101 and the outer diameter baffle 102 on the insulating end plate 1 to obtain a better fastening clamping effect on the split stator tooth iron core 7 in opposite-top clamping.

Fig. 3A and 3B are schematic assembly views of an insulating end plate for a segmented stator tooth core, and fig. 3C and 3D are cross-sectional views of insulating end plate 1 in the direction indicated by the arrows in fig. 3A and 3B; fig. 3C is a schematic cross-sectional view of the segment type stator tooth core 7; fig. 3D is an assembled cross-sectional view of insulating end plate 1 and segmented stator tooth core 7, which are effectively mated together.

Any piece type stator tooth 10 includes a piece type stator tooth iron core 7, two insulating end plates 1, piece type stator tooth iron core 7, two insulating end plates 1 that set up at piece type stator tooth iron core 7 both ends and the stator tooth winding 11 of winding on it has formed a piece type stator tooth 10, wherein: the two insulating end plates 1 are arranged at two ends of the split type stator tooth iron core 7 and are used for fastening, insulating and clamping two ends of the split type stator tooth iron core 7, and the two insulating end plates 1 at the two ends are equivalent to the two glass fiber cloth plates 8 at the two ends in the prior art to play a technical effect and a technical effect; the inner diameter baffle 101, the outer diameter baffle 102 and the end face insulating plate 103 are closely matched with the block type stator tooth iron core 7, and the insulating end plate 1 and the block type stator tooth iron core 7 are closely clamped and in insulating fit.

The end face insulating plate 103 is provided with an insulating plate contact end face 1033, the insulating plate contact end face 1033 is in contact with a stator tooth end face 7033 on the split type stator tooth iron core 7, the insulating plate contact end face 1033 is attached to the stator tooth end face 7033 on the split type stator tooth iron core 7 to insulate the split type stator tooth iron core 7, the end face insulating plate 103 can be tightly attached to one side of the stator tooth end face 7033 in the life cycle of the permanent magnet synchronous motor, the insulating end plate 1 cannot be easily separated from the split type stator tooth iron core 7 like a glass fiber cloth plate 8 in the prior art in the life cycle, and the technical problem existing after the glass fiber cloth plate 8 is attached in the prior art is solved.

Now, the technical description is given on the insulating end plate 1 on one side of the split stator tooth iron core 7, and the insulating end plate 1 on the other side of the split stator tooth iron core 7 is the same; the end face insulating plate 103 is further provided with a first clamping end face 1031 and a second clamping end face 1032, the first clamping end face 1031 is matched with a first middle contact end face 7031 of the stator teeth on the split stator tooth iron core 7, and the second clamping end face 1032 is matched with a second middle contact end face 7032 of the stator teeth on the split stator tooth iron core 7. The first clamping end surface 1031 is in close contact fit with a first middle contact end surface 7031 of the stator teeth, the second clamping end surface 1032 is in close contact fit with a second middle contact end surface 7032 of the stator teeth, and the two close fits form a certain clamping effect of the insulating end plate 1 on the split type stator tooth iron core 7.

Now, the technical description is given on the insulating end plate 1 on one side of the split stator tooth iron core 7, and the insulating end plate 1 on the other side of the split stator tooth iron core 7 is the same; the inner diameter baffle 101 is provided with a first inner diameter clamping end face 1011 and a second inner diameter clamping end face 1012, and a stator tooth first inner diameter contact end face 7011 and a stator tooth second inner diameter contact end face 7012 on the split stator tooth iron core 7. The insulation end plate 1 on one side of the split stator tooth iron core 7 is matched with a first inner diameter clamping end surface 1011 and a first inner diameter contact end surface 7011 of the stator tooth on the split stator tooth iron core 7, and the second inner diameter clamping end surface 1012 is matched with a second inner diameter contact end surface 7012 of the stator tooth on the split stator tooth iron core 7; the first inner diameter clamping end face 1011 is in close contact fit with the stator tooth first inner diameter contact end face 7011, and the second inner diameter clamping end face 1012 is in close contact fit with the stator tooth second inner diameter contact end face 7012. The insulating end plate 1 on the other side of the split stator tooth iron core 7 is matched with a first inner diameter clamping end surface 1011 and a second inner diameter contact end surface 7012 of the stator teeth on the split stator tooth iron core 7, and the second inner diameter clamping end surface 1012 is matched with a first inner diameter contact end surface 7011 of the stator teeth on the split stator tooth iron core 7; the first inner diameter clamping end face 1011 is in close contact fit with the stator tooth second inner diameter contact end face 7012, and the second inner diameter clamping end face 1012 is in close contact fit with the stator tooth first inner diameter contact end face 7011.

Now, the technical description is given on the insulating end plate 1 on one side of the split stator tooth iron core 7, and the insulating end plate 1 on the other side of the split stator tooth iron core 7 is the same; the outer diameter baffle plate 102 is provided with a first outer diameter clamping end surface 1021 and a second outer diameter clamping end surface 1022, and a stator tooth first outer diameter contact end surface 7021 and a stator tooth second outer diameter contact end surface 7022 on the split stator tooth iron core 7. The insulation end plate 1 on one side of the split stator tooth iron core 7 is matched with a first outer diameter clamping end surface 1021 and a second outer diameter clamping end surface 1022 of a stator tooth on the split stator tooth iron core 7, and is matched with a second outer diameter contact end surface 7022 of the stator tooth on the split stator tooth iron core 7; the first outer diameter clamping end surface 1021 is in close contact fit with the first outer diameter contact end surface 7021 of the stator teeth, and the second outer diameter clamping end surface 1022 is in close contact fit with the second outer diameter contact end surface 7022 of the stator teeth. The insulation end plate 1 on the other side of the split stator tooth iron core 7 is matched with a first outer diameter clamping end surface 1021 and a second outer diameter contact end surface 7022 of the stator teeth on the split stator tooth iron core 7, and the second outer diameter clamping end surface 1022 and a first outer diameter contact end surface 7021 of the stator teeth on the split stator tooth iron core 7 are matched; the first outer diameter clamping end surface 1021 is in close contact fit with the second outer diameter contact end surface 7022 of the stator teeth, and the second outer diameter clamping end surface 1022 is in close contact fit with the first outer diameter contact end surface 7021 of the stator teeth.

Now, the insulating end plate 1 on one end of the split stator tooth iron core 7 is explained, and the insulating end plate 1 on the other end of the split stator tooth iron core 7 is the same. The tight contact fit between a first inner diameter clamping end face 1011 of the insulating end plate 1 on one end of the split stator tooth iron core 7 and a first inner diameter contact end face 7011 of the stator tooth and the tight contact fit between a second inner diameter clamping end face 1012 and a second inner diameter contact end face 7012 of the stator tooth; meanwhile, the first outer diameter clamping end surface 1021 is in close contact fit with the first outer diameter contact end surface 7021 of the stator teeth, and the second outer diameter clamping end surface 1022 is in close contact fit with the second outer diameter contact end surface 7022 of the stator teeth, so that the opposite-vertex clamping effect of the inner diameter baffle plate 101 and the outer diameter baffle plate 102 on the insulating end plate 1 on the split type stator tooth iron core 7 is realized; two kinds of closely cooperations of first clamp terminal surface 1031 and the first middle part contact terminal surface 7031 of stator tooth, second clamp terminal surface 1032 and the second middle part contact terminal surface 7032 of stator tooth form the clamping effect to piecing together formula stator tooth iron core 7, and insulating board contact terminal surface 1033 has constituted insulating end plate 1 jointly and has closely clamped insulating effect to piecing together formula stator tooth iron core 7 to the centre gripping insulating effect of stator tooth terminal surface 7033.

In fig. 3A and 3B, two insulating end plates 1 are respectively clamped at two ends of a split stator tooth iron core 7, the operating principle of the insulating end plates 1 clamped at two ends of the split stator tooth iron core 7 is the same, fig. 3C and 3D only have been cut through the insulating end plate 1 at one side indicated by an arrow in fig. 3A and 3B, and the installation manner of the insulating end plate 1 at the other side indicated by an arrow in fig. 3A and 3B is the same; the first inner diameter clamping end face 1011, the second inner diameter clamping end face 1012, the first outer diameter clamping end face 1021, the second outer diameter clamping end face 1022, the first clamping end face 1031 and the second clamping end face 1032 on the insulating end plates 1 at the two ends clamp and fasten the corresponding side of the split stator tooth iron core 7 together, and the insulating end plates 1 at the two ends are simultaneously, symmetrically and tightly clamped at the two ends of the split stator tooth iron core 7 respectively.

The first clamping end surface 1031 of the insulating end plate 1 at one end of the split stator tooth iron core 7 indicated by the arrow is tightly matched with the first middle contact end surface 7031 of the stator tooth, and the second clamping end surface 1032 is tightly matched with the second middle contact end surface 7032 of the stator tooth; the first inner diameter clamping end face 1011 of this insulating end plate 1 is in close fit with the first inner diameter contact end face 7011 of the stator tooth, and the second inner diameter clamping end face 1012 is in close fit with the second inner diameter contact end face 7012 of the stator tooth; the first outer diameter clamping end surface 1021 of the insulating end plate 1 is in close fit with the first outer diameter contact end surface 7021 of the stator teeth, and the second outer diameter clamping end surface 1022 is in close fit with the second outer diameter contact end surface 7022 of the stator teeth.

The first clamping end surface 1031 of the insulating end plate 1 on the other end of the split stator tooth iron core 7 is tightly matched with the second middle contact end surface 7032 of the stator tooth, and the second clamping end surface 1032 is tightly matched with the first middle contact end surface 7031 of the stator tooth; the first inner diameter clamping end face 1011 of this insulating end plate 1 is also in close fit with the stator tooth second inner diameter contact end face 7012, and the second inner diameter clamping end face 1012 is also in close fit with the stator tooth first inner diameter contact end face 7011; the first outer diameter clamping end surface 1021 of this insulating end plate 1 also mates with the stator tooth second outer diameter contact end surface 7022, and the second outer diameter clamping end surface 1022 also mates with the stator tooth first outer diameter contact end surface 7021.

FIG. 3E is a schematic plan view of an unwrapped segmented stator tooth of the present invention, and FIG. 3F is a schematic plan view of a segmented stator tooth with an unwrapped wire of the present invention; the outer diameter base 104 and the inner diameter base 105 are arranged oppositely, the outer diameter base 104 is connected with the outer diameter baffle plate 102, and the inner diameter base 105 is connected with the inner diameter baffle plate 101; the outer diameter base 104 and the inner diameter base 105 on the insulating end plates 1 at two ends of the split stator teeth 10 limit the stator teeth winding 11 wound on the split stator teeth 10 together, the outer diameter baffle 102 is provided with a winding through hole 1041 used for penetrating through the stator teeth winding, and the winding through hole 1041 is used for penetrating through the stator teeth winding 11. The outer diameter baffle 102 is provided with a winding through hole 1041, and the split type stator tooth 10 can be conveniently inserted and led out by the winding through hole 1041 in the winding process, so that the thread end of the winding 11 of the stator tooth can be conveniently inserted and led out.

The size of the outer diameter base is designed according to the size of the spliced stator tooth iron core 7, and the outer diameter base is used for fixing the whole insulation end plate with the spliced stator tooth iron core 7 and ensuring that an end surface insulation plate 103 matched with the spliced stator tooth iron core 7 does not fall off in the winding process, and two end surfaces of the spliced stator tooth iron core 7 are always matched with the end surface insulation plate 103; the end face insulation plates 103 ensure the insulation strength of the copper wire winding and the end faces on the two sides of the split stator tooth iron core 7, the end face insulation plates 103 are made of insulating heat-resistant materials with long-time working temperature higher than 180 ℃, and nylon materials and plastic materials ensure that a permanent magnet synchronous motor using the split stator tooth 10 can run reliably.

FIG. 4A is a schematic view of a segmented stator tooth of the present invention connected together to form a segmented stator; FIG. 4B is an enlarged partial schematic view of the segmented stator of FIG. 4A; fig. 4C and 4D are a schematic view and a partially enlarged view illustrating a structural process of a segmented stator according to the present invention, in which the segmented stator teeth 10, on which the stator tooth winding 11 is not wound, are spliced with each other; fig. 4E and 4F are a complete schematic view and a partially enlarged view of the block type stator of the present invention. The permanent magnet synchronous motor stator comprises split type stator teeth 10 and a stator support base 12, the split type stator teeth 10 which are connected with each other are arranged in the stator support base 12 to form a main body structure of the permanent magnet synchronous motor stator, and the stator support base 12 can be a part of a permanent magnet synchronous motor shell.

Any one of the block type stator teeth 10 in the stator support base 12 comprises a block type stator tooth iron core 7 and two insulating end plates 1 arranged at two ends of the block type stator tooth iron core 7, and the two insulating end plates 1 are respectively arranged on the block type stator tooth iron core 7 for fastening, insulating and clamping; the insulating end plate 1 comprises an inner diameter baffle 101, an outer diameter baffle 102, an end face insulating plate 103, an outer diameter base 104 and an inner diameter base 105, the inner diameter baffle 101 and the outer diameter baffle 102 are respectively arranged at two ends of the insulating end plate 1, and the end face insulating plate 103 is arranged in the middle of the insulating end plate 1; the inner diameter baffle 101, the outer diameter baffle 102 and the end face insulating plate 103 are matched with the split block type stator tooth iron core 7.

The spliced stator tooth iron cores 7 on the permanent magnet synchronous motor stator are spliced and connected together, each spliced stator tooth iron core 7 comprises a stator tooth splicing convex groove 7042 and a stator tooth splicing groove 7041, the stator tooth splicing convex groove 7042 on any spliced stator tooth iron core 7 is spliced and matched with the stator tooth splicing groove 7041 on the spliced stator tooth iron core 7 on one adjacent side, and the stator tooth splicing groove 7041 on the spliced stator tooth iron core 7 is spliced and matched with the stator tooth splicing convex groove 7042 on the spliced stator tooth iron core 7 on the other adjacent side; all the split type stator tooth iron cores 7 are connected together in a ring-to-ring buckling and splicing mode to form a permanent magnet synchronous motor stator base body.

The outer diameter base 104 and the inner diameter base 105 are oppositely arranged, the outer diameter base 104 is connected with the outer diameter baffle plate 102, and the inner diameter base 105 is connected with the inner diameter baffle plate 101; the outer diameter base 104 and the inner diameter base 105 of any insulating end plate 1 on the split block type stator teeth 10 limit the stator tooth winding 11 together; the outer diameter baffle plate 102 is provided with a winding through hole 1041 for passing through the stator tooth winding 11.

The outer diameter base 104 and the inner diameter base 105 which are respectively arranged at two ends of the split block type stator tooth iron core 7 are tightly matched, the outer diameter base 104 and the inner diameter base 105 of the two insulating end plates 1 at the left end and the right end of the split block type stator tooth iron core 7 together form a space which is commonly used for limiting the wound stator tooth winding 11, and the matching relation among the outer diameter base 104, the inner diameter base 105 and the split block type stator tooth iron core 7 on any insulating end plate 1 can ensure that the stator tooth winding 11 cannot exceed the space range limited by the outer diameter base 104 and the inner diameter base 105 in the process of arranging the stator tooth winding 11, so that the stator tooth winding 11 is tightly wound and fixed on the split block type stator tooth 10 after the split block type stator tooth 10 is assembled.

Claims (10)

1. A permanent magnet synchronous motor stator is characterized by comprising split type stator teeth (10) and a stator support base (12), wherein the split type stator teeth (10) which are connected with each other are arranged on the stator support base (12), and the stator comprises:

any one of the split stator teeth (10) comprises a split stator tooth iron core (7), two insulating end plates (1) and a group of stator tooth windings (11), wherein the two insulating end plates (1) are used for fastening and clamping two ends of the split stator tooth iron core (7) respectively, and the group of stator tooth windings (11) are wound on the split stator tooth iron core (7) after the two insulating end plates (1) are arranged;

the insulating end plate (1) comprises an inner diameter baffle (101), an outer diameter baffle (102), an end surface insulating plate (103), an outer diameter base (104) and an inner diameter base (105), the inner diameter baffle (101) and the outer diameter baffle (102) are respectively arranged at two ends of the insulating end plate (1), and the end surface insulating plate (103) is arranged in the middle of the insulating end plate (1);

the inner diameter baffle (101), the outer diameter baffle (102) and the end face insulating plate (103) are matched with the split block type stator tooth iron core (7), and the end face insulating plate (103) is also matched with a stator tooth end face (7033) of the split block type stator tooth iron core (7).

2. The stator according to claim 1, wherein the insulating plate contact end face (1033) is disposed on the end face insulating plate (103) of the insulating end plate (1) on the segment-type stator tooth (10), the insulating plate contact end face (1033) of one of the insulating end plates (1) at both ends of the segment-type stator tooth core (7) is in close insulating contact fit with one of the stator tooth end faces (7033) at one end of the segment-type stator tooth core (7), and the insulating plate contact end face (1033) of the other of the insulating end plates (1) at both ends of the segment-type stator tooth core (7) is in close insulating contact fit with the other of the stator tooth end faces (7033) at the other end of the segment-type stator tooth core (7).

3. The stator of the permanent magnet synchronous motor according to claim 1, wherein the end insulating plates (103) of the insulating end plate (1) on the split stator teeth (10) are each provided with a first clamping end surface (1031) and a second clamping end surface (1032), the split stator teeth core (7) is provided with a first middle contact end surface (7031) of the stator teeth and a second middle contact end surface (7032) of the stator teeth, the first clamping end surface (1031) and the second clamping end surface (1032) on the insulating end plate (1) are respectively matched with the first middle contact end surface (7031) of the stator teeth or the second middle contact end surface (7032) of the stator teeth on the split stator teeth core (7), and wherein:

the first clamping end face (1031) of one insulating end plate (1) at two ends of the split block type stator tooth iron core (7) is in close contact fit with the first middle contact end face (7031) of the stator tooth, and the second clamping end face (1032) is in close contact fit with the second middle contact end face (7032) of the stator tooth;

another one of two ends of the split block type stator tooth iron core (7) the first clamping end face (1031) of the insulating end plate (1) is in close contact fit with the second middle contact end face (7032) of the stator tooth, and the second clamping end face (1032) is in close contact fit with the first middle contact end face (7031) of the stator tooth.

4. The stator of the permanent magnet synchronous motor according to claim 1, wherein a first inner diameter clamping end face (1011) and a second inner diameter clamping end face (1012) are arranged on the inner diameter baffle (101) of any insulating end plate (1) on any one of the split type stator teeth (10), the first inner diameter clamping end face (1011) and the end face insulating plate (103) are obliquely arranged, and the second inner diameter clamping end face (1012) and the end face insulating plate (103) are obliquely arranged; the split block type stator tooth iron core (7) is provided with a first inner diameter contact end surface (7011) of the stator tooth and a second inner diameter contact end surface (7012) of the stator tooth; on insulating end plate (1) first internal diameter presss from both sides tight terminal surface (1011), second internal diameter presss from both sides tight terminal surface (1012) and stator tooth first internal diameter contact terminal surface (7011) or stator tooth second internal diameter contact terminal surface (7012) on piece formula stator tooth iron core (7) cooperate, wherein:

the first inner diameter clamping end face (1011) of one insulating end plate (1) at two ends of the split block type stator tooth iron core (7) is in close contact fit with the first inner diameter contact end face (7011) of the stator tooth, and the second inner diameter clamping end face (1012) is in close contact fit with the second inner diameter contact end face (7012) of the stator tooth;

another one of two ends of the split block type stator tooth iron core (7) the first inner diameter clamping end face (1011) of the insulation end plate (1) is in close contact fit with the second inner diameter contact end face (7012) of the stator tooth, and the second inner diameter clamping end face (1012) is in close contact fit with the first inner diameter contact end face (7011) of the stator tooth.

5. The stator of the permanent magnet synchronous motor according to claim 1, wherein the outer diameter baffle (102) of any insulating end plate (1) on any one of the split stator teeth (10) is provided with a first outer diameter clamping end surface (1021) and a second outer diameter clamping end surface (1022), and the split stator tooth core (7) is provided with a stator tooth first outer diameter contact end surface (7021) and a stator tooth second outer diameter contact end surface (7022); the first outer diameter clamping end face (1021), the second outer diameter clamping end face (1022) and a first outer diameter contact end face (7021) of stator teeth or a second outer diameter contact end face (7022) of stator teeth on the split stator tooth iron core (7) on the insulating end plate (1) are matched, wherein:

the first outer diameter clamping end face (1021) of the other insulating end plate (1) at two ends of the split block type stator tooth iron core (7) is in close contact fit with the first outer diameter contact end face (7021) of the stator tooth, and the second outer diameter clamping end face (1022) is in close contact fit with the second outer diameter contact end face (7022) of the stator tooth;

the other one of two ends of the split block type stator tooth iron core (7) is that the first outer diameter clamping end face (1021) of the insulation end plate (1) is in close contact fit with the second outer diameter contact end face (7022) of the stator tooth, and the second outer diameter clamping end face (1022) is in close contact fit with the first outer diameter contact end face (7021) of the stator tooth.

6. Stator according to claim 1, characterized in that the insulating end plate (1) is an insulating heat-resistant material.

7. The stator of claim 1, wherein the outer diameter base (104) and the inner diameter base (105) are oppositely disposed, the outer diameter base (104) and the outer diameter baffle (102) are connected, and the inner diameter base (105) and the inner diameter baffle (101) are connected.

8. The stator according to claim 1, wherein the outer diameter base (104) and the inner diameter base (105) of any one of the insulating end plates (1) on the segmented stator teeth (10) together define the stator tooth windings (11) on the segmented stator teeth (10).

9. The stator according to claim 1, wherein the outer diameter baffle (102) is provided with a winding through hole (1041) for passing through the stator tooth winding (11).

10. The stator of claim 1, wherein the segmented stator teeth (10) comprise stator tooth splicing convex grooves (7042) and stator tooth splicing concave grooves (7041), the stator tooth splicing convex grooves (7042) on any one of the segmented stator teeth (10) on the stator support base (12) are matched with the stator tooth splicing concave grooves (7041) on the segmented stator teeth (10) on one side adjacent to the stator tooth splicing convex grooves, and the stator tooth splicing concave grooves (7041) on the segmented stator teeth (10) on the other side adjacent to the stator tooth splicing convex grooves (7042) are matched with the stator tooth splicing convex grooves (7042) on the segmented stator teeth (10) on the other side adjacent to the stator tooth splicing convex grooves.

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