CN214755782U

CN214755782U - Rotor structure, motor structure and clothes treatment device

Info

Publication number: CN214755782U
Application number: CN202120984733.9U
Authority: CN
Inventors: 杨雄; 李文瑞
Original assignee: Midea Welling Motor Technology Shanghai Co Ltd
Current assignee: Midea Welling Motor Technology Shanghai Co Ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2021-11-16
Anticipated expiration: 2031-05-10

Abstract

An embodiment of the utility model provides a rotor structure, motor structure and clothing processing apparatus, wherein, the rotor structure includes: the rotor comprises a rotor core, wherein a plurality of permanent magnet slots are formed in the rotor core and are arranged in a surrounding manner along the circumferential direction of the rotor core; the permanent magnet is arranged in the permanent magnet groove; the magnetic barrier is arranged on the rotor core, the rotor structure can rotate in a unidirectional or bidirectional mode along the circumferential direction, the magnetic barrier is arranged on at least one side of the permanent magnet groove along the rotating direction of the rotor structure, and two ends of the magnetic barrier face towards the outer edges of the permanent magnet and the rotor core respectively. In the technical scheme of the utility model, on one hand, on the basis of inhibiting the quadrature axis armature reaction of the motor, relieving the magnetic saturation degree, reducing the load back electromotive force and improving the torque density and the overload capacity of the motor, the position of the magnetic barrier can be set according to the limitation of the rotation direction of the rotor structure; on the other hand, the magnetic barrier is formed by hollowing out the rotor core, so that the use amount of the rare earth permanent magnet can be reduced.

Description

Rotor structure, motor structure and clothes treatment device

Technical Field

The utility model relates to a clothing processing apparatus technical field particularly, relates to a rotor structure, a motor structure and a clothing processing apparatus.

Background

For the clothes treatment device, the performance of the motor arranged in the clothes treatment device is an important factor for determining the using quality of the clothes treatment device, in the prior art, the requirements on the performance and the cost performance of the motor are gradually increased, and for the motor, the magnetic saturation degree of the motor is deepened under the action of quadrature axis armature reaction, so that the performance of the motor can be prevented from being improved.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

In view of this, the embodiment of the first aspect of the present invention provides a rotor structure.

An embodiment of the second aspect of the present invention provides a motor structure.

An embodiment of the third aspect of the present invention provides a clothes treatment apparatus.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a rotor structure, including: the rotor comprises a rotor core, wherein a plurality of permanent magnet slots are formed in the rotor core and are arranged in a surrounding manner along the circumferential direction of the rotor core; the permanent magnet is arranged in the permanent magnet groove; the magnetic barrier is arranged on the rotor core, the rotor structure can rotate in a unidirectional or bidirectional mode along the circumferential direction, the magnetic barrier is arranged on at least one side of the permanent magnet groove along the rotating direction of the rotor structure, and two ends of the magnetic barrier face towards the outer edges of the permanent magnet and the rotor core respectively.

According to the utility model discloses the rotor structure that the embodiment of first aspect provided, including rotor core and the permanent magnet of setting in rotor core to in driven under the magnetic action of permanent magnet, rotor structure can take place to rotate for the stator, in order to realize the normal operating of motor. Specifically, the rotor core is provided with permanent magnet slots penetrating through two end faces, and the permanent magnets can be arranged in the permanent magnet slots, so that the permanent magnets can be driven by magnetic force conveniently. Still be equipped with the magnetic barrier on rotor core, the extending direction through injecing the magnetic barrier both ends is for orientation permanent magnet and outer fringe, thereby can make the magnetic barrier as the structure of alleviating the magnetic saturation degree, form the magnetic barrier at rotor structure pivoted in-process, with the power density and the torque density that improve the motor, promote the overload capacity of motor, effectively improve the torque pulsation of motor, reduce motor permanent magnetism quantity, also on the basis that reduces manufacturing cost, very big promotion motor performance, improve the cost performance of the motor of using rotor structure, improve the product competitiveness.

It should be particularly emphasized that, since the rotation direction of the rotor structure in the present application is limited by the motor, for example, it may be used for a unidirectional motor, and therefore, for the unidirectional motor, the position of the magnetic barrier may be set according to the rotation direction of the rotor structure, so as to meet the requirement of the motor performance on the basis of further reducing the processing cost.

Further, in one specific embodiment, the magnetic barriers are only arranged on one side of the permanent magnet slots, and in another specific embodiment, the magnetic barriers are arranged on two sides of the permanent magnet slots in the magnetizing direction, namely on two circumferential sides of the rotor core.

According to the rotor structure of the scheme, on one hand, on the basis of inhibiting quadrature axis armature reaction of the motor, relieving magnetic saturation degree, reducing load counter potential and improving torque density and overload capacity of the motor, the position of a magnetic barrier can be set according to the limitation of the rotation direction of the rotor structure; on the other hand, the magnetic barrier is formed by hollowing out the rotor core, so that the use amount of the rare earth permanent magnet can be reduced.

There may be a plurality of permanent magnet slots, and typically, the plurality of permanent magnet slots are uniformly arranged around the axis of the rotor core.

Wherein, the extending direction in permanent magnet groove can be rotor core's axial direction, still can be for being the direction of certain angle with the axial, of course, because of the consideration of processing cost and processing degree of difficulty, generally only need with permanent magnet groove along the axial setting, link up rotor core's two terminal surfaces can.

In addition, for the permanent magnet slot, at least one of the two ends may pass through the end face, for example, both ends may pass through, or one of the two ends may pass through, or both ends may not pass through the end face.

It can be understood that, for the rotor core, the permanent magnet slots and the periphery of the rotor core are located in two directions, so that the magnetic barriers can be bent to a certain extent by limiting the two ends of the magnetic barriers to face the outer edges of the permanent magnets and the rotor core respectively.

Additionally, the utility model provides a rotor structure in the above-mentioned scheme can also have following additional technical characterstic:

in the technical scheme, the cross section of the permanent magnet groove is in a polygonal shape, and the cross section of the permanent magnet groove is in a central symmetry structure.

In the technical scheme, the cross section of the permanent magnet slot is limited to be polygonal, the polygonal permanent magnet slot can be more favorable for occupying the space of the rotor core, and the space of the core inside the rotor can be fully utilized, so that the torque density is optimized.

In the above technical solution, the permanent magnet slot includes a first slot portion, a second slot portion and a third slot portion that are connected along the radial direction of the rotor core, wherein the width of the first slot portion is smaller than or equal to the width of the second slot portion, and the width of the third slot portion is smaller than or equal to the width of the second slot portion.

In this technical scheme, the permanent magnet groove that is polygonized mainly includes first slot part, second slot part and third slot part, and the three connects gradually, is located the width broad of the second slot part in the middle of, and the first slot part and the third slot part that are located both sides are narrower, do benefit to the basis of assembly, also are convenient for satisfy the demand of magnetizing.

Wherein, the width is the size of the permanent magnet slot in the magnetizing direction.

Among the above-mentioned technical scheme, the one-way rotation of rotor structure, in rotor structure's direction of rotation, the front side in permanent magnet groove is located with at least one magnetic barrier that every permanent magnet groove corresponds.

In the technical scheme, under the condition that the rotor structure rotates in a single direction, the magnetic barrier is limited to be arranged on the front side of the permanent magnet groove in the rotating direction of the rotor structure, namely, the magnetic barrier is arranged on the weak magnetic side of the permanent magnet groove. When the rotor structure rotates, the permanent magnet can form a weak magnetic side and a strong magnetic side in the magnetizing direction, and the inhibition on motor quadrature axis armature reaction can be met by arranging the magnetic barrier on the weak magnetic side of the permanent magnet groove, so that the saturation degree of a rotor core is relieved.

It will be appreciated that the front side of the permanent magnet slot is the side that first passes a fixed position during rotation. For example, rotating in a clockwise direction, the entire rotor structure is divided into a plurality of fan-shaped structures, and for each fan-shaped structure, if the permanent magnet slots are arranged in the six o 'clock direction, the magnetic barriers are arranged in the seven o' clock direction.

In the above technical solution, the magnetic barrier specifically includes: a first slot segment extending towards the permanent magnet slot; and the second slot section is communicated with the first slot section and extends towards the periphery of the rotor core.

In this technical scheme, the magnetic barrier mainly includes two parts, is first groove section and second groove section respectively, and first groove section and second groove section are linked together, and wherein, the one end that first groove section and second groove section deviate from is towards the periphery of permanent magnet groove and rotor core respectively, and two parts of magnetic barrier are towards the structure of different positions respectively, and need communicate again between two parts, can effectively realize the quadrature axis armature reaction of suppression motor under the combined action of two parts to alleviate the effect of magnetic saturation degree.

In the technical scheme, on the cross section of the rotor core, the rotor core is divided into 2P fan-shaped areas by a plurality of permanent magnet grooves, and the included angle between the extending direction of the first groove section and the extending direction of the permanent magnet grooves is [ (180 DEG/2P) and 90 DEG ]; on the cross section of the rotor core, the included angle between the extending direction of the second groove section and the rotating direction of the rotor core is [60 degrees ], 120 degrees ].

In the technical scheme, the extension directions of the first slot section and the second slot section are limited, so that the quadrature axis armature reaction of the motor can be effectively inhibited and the magnetic saturation degree can be relieved under the action of the magnetic barrier, the power density and the torque density of the motor can be improved, the overload capacity of the motor can be improved, and the torque pulsation of the motor can be effectively improved. Specifically, the cross section of the rotor core is a normal plane of the axis of the rotor core, and on the cross section, an included angle between the extending direction of the first slot segment and the extending direction of the permanent magnet slots is greater than or equal to 180 °/2P), and is less than or equal to 90 °, where 2P is the number of the fan-shaped regions, and when the shape of the cross section of the rotor core is circular, 2P is also the number of the permanent magnet slots. Also, in the cross section, the extending direction of the second slot segment and the rotating direction of the rotor core may be orthogonal or approximately orthogonal, and specifically, the angle range between the extending direction of the second slot segment and the rotating direction of the rotor core may be greater than or equal to 60 ° and less than or equal to 120 °.

In the above technical scheme, one end of the first slot section, which is far away from the second slot section, is communicated with the permanent magnet slot.

In the technical scheme, one end of the first groove section facing the permanent magnet groove is limited to be directly communicated to the permanent magnet groove, and the first groove section can be directly cut from the permanent magnet groove side and extend into the rotor core during processing, so that the processing is facilitated.

Among the above-mentioned technical scheme, there is first interval between the one end and the permanent magnet groove of second groove section is kept away from to first groove section.

In the technical scheme, one end of the first slot segment, which faces the permanent magnet slot, is not communicated with the permanent magnet slot through limitation, namely a certain distance exists between the first slot segment and the permanent magnet slot, for the magnetic barrier as a whole, one end of the magnetic barrier is of a closed structure, and in terms of structure, a certain interval exists between the first slot segment and the permanent magnet slot, so that the effect of inhibiting the quadrature axis armature reaction of the motor can be realized.

In the above technical solution, the first distance is greater than or equal to 0.2 mm.

In this technical scheme, when first groove section and permanent magnet groove intercommunication not, the interval between the two needs to be more than or equal to 0.2mm to when processing rotor core, can guarantee the structural strength of rotor core between first groove section and the permanent magnet groove.

In the above technical scheme, one end of the second slot segment, which is far away from the first slot segment, is communicated with the periphery of the rotor core.

In the technical scheme, one end of the second groove section facing the periphery is limited to be directly communicated to the periphery, and the second groove section can be directly cut and extended from the outer side of the rotor core during machining, so that the machining is facilitated.

In the above technical scheme, a second distance exists between one end of the second slot segment, which is far away from the first slot segment, and the periphery of the rotor core.

In the technical scheme, one end of the second groove section facing the periphery is not communicated with the periphery through limitation, namely a certain distance exists between the second groove section and the periphery, for the magnetic barrier as a whole, one end of the magnetic barrier is of a closed structure, and for the structure, a certain distance exists between the second groove section and the periphery, so that the effect of inhibiting the quadrature axis armature reaction of the motor can be realized.

In the above technical solution, the second pitch is greater than or equal to 0.2 mm.

In this technical scheme, when the second groove section is not communicated with the periphery, the distance between the two needs to be greater than or equal to 0.2mm to when processing the rotor core, certain intensity of periphery can be guaranteed.

In the technical scheme, among the magnetic barriers correspondingly arranged with the same permanent magnet, the communication relation between the first slot section and the permanent magnet slot is consistent, and the communication relation between the second slot section and the outer edge of the rotor core is consistent.

In the technical scheme, for a plurality of magnetic barriers correspondingly arranged in the same permanent magnet slot, the connection relation between the first slot section and the second slot section and the outer edges of the permanent magnet slot and the outer edges of the rotor core are respectively consistent by limiting, so that the processing efficiency is improved.

In the technical scheme, among the plurality of magnetic barriers correspondingly arranged with the same permanent magnet, the communication relation between the first groove sections of at least two adjacent magnetic barriers and the permanent magnet groove is inconsistent, and the communication relation between the second groove sections and the outer edge of the rotor core is inconsistent.

In this technical scheme, for a plurality of magnetic barriers that same permanent magnet groove corresponds and sets up, the intercommunicating relationship of first groove section and second groove section is crisscross, can understand, if first groove section and permanent magnet groove intercommunication, then can have great armature inhibitory effect, nevertheless because direct breach design, can produce certain influence to intensity, if first groove section and permanent magnet groove do not communicate, then have certain intensity, but to the inhibitory effect of armature, can be slightly weak, the intercommunicating relationship of second groove section and outer fringe is also the same, through crisscross intercommunicating relationship, can synthesize promotion armature inhibitory effect and intensity, improve rotor structure's use feasibility.

In the above technical scheme, among the plurality of magnetic barriers corresponding to the same permanent magnet, the first slot segment having at least one magnetic barrier is not communicated with the permanent magnet slot, and the second slot segment is not communicated with the outer edge of the rotor core.

In this technical scheme, to a plurality of magnetic barriers that same permanent magnet groove corresponds the setting, first groove section and the second groove section that set up the magnetic barrier through the restriction do not communicate with permanent magnet groove and outer fringe respectively, can understand, because both ends are all not communicated, can effectively improve the structural strength of rotor core in the operation process to improve the overall stability of rotor structure whole when rotating.

In the above technical solution, the first groove section is linear, the second groove section is linear, and an included angle between the first groove section and the second groove section is [60 °,120 ° ].

In this technical scheme, first groove section and second groove section are the straightway, and the processing of being convenient for, and through the contained angle between the two limits of straightway, more do benefit to the inhibitory effect to quadrature axis armature reaction.

In another embodiment, one or both of the first and second slot segments may be further restricted to being curved.

Among the above-mentioned technical scheme, rotor core specifically includes: the punching sheets are arranged in a laminated mode, wherein each punching sheet is provided with an assembly opening, and the assembly openings form permanent magnet grooves.

In this technical scheme, for the convenience of processing, rotor core mainly comprises a plurality of towards the piece, can form rotor core through carrying out the stromatolite equipment with a plurality of towards the piece, needs explain, add man-hour, can process alone on every towards the piece and form the assembly mouth, and then after the equipment, a plurality of assembly mouths can form the permanent magnet groove that is used for holding the permanent magnet to do benefit to the rotation that realizes rotor structure.

Among the above-mentioned technical scheme, a plurality of towards the piece and form a plurality of iron core sections that set up along the axial, a plurality of iron core sections set up along rotor core's axial and form rotor core.

In this technical scheme, the lamination is divided into the multistage towards the piece that the stromatolite set up, and every section comprises a plurality of towards the piece, and multistage core section is arranged along the axial can form rotor core to realize the electromagnetic action of rotor in the motor.

An embodiment of the second aspect of the present invention provides a motor structure, including: a stator; as in the first aspect of the present invention, the rotor structure is disposed coaxially with the stator, and the rotor structure is capable of rotating relative to the stator.

According to the utility model discloses the motor structure that the embodiment of second aspect provided, including stator and rotor structure, wherein, be equipped with the rotor structure among the above-mentioned first aspect technical scheme in the motor structure, so have the beneficial effect of above-mentioned arbitrary rotor structure, no longer describe here.

It is emphasized that, because the motor structure comprises the rotor structure, on one hand, the quadrature axis armature reaction of the motor is effectively inhibited, the magnetic saturation degree is relieved, the load counter electromotive force is reduced, and the torque density and the overload capacity of the motor are improved; on the other hand, the magnetic field harmonic of the rotor in the air gap can be weakened, and the torque ripple of the motor is improved.

An embodiment of the third aspect of the present invention provides a clothes treatment apparatus, including: a housing; the motor structure in the above second aspect technical solution is disposed in the housing.

According to the utility model discloses the clothing processing apparatus that third aspect embodiment provided, including the casing and locate the motor structure in the casing, be equipped with the motor structure among the above-mentioned second aspect technical scheme in the off-premises station, so have the beneficial effect of above-mentioned motor structure, no longer describe here.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

Fig. 1 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 2 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

FIG. 3 shows a partially enlarged schematic view of portion A of FIG. 2;

FIG. 4 is an enlarged partial schematic view of portion B of FIG. 2;

fig. 5 shows a schematic structural diagram of a partial punch according to an embodiment of the present invention;

fig. 6 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 7 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 8 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 9 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 10 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 11 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 12 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 13 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 14 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

FIG. 15 is an enlarged partial schematic view of portion C of FIG. 14;

FIG. 16 is an enlarged partial schematic view of portion D of FIG. 14;

fig. 17 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 18 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 19 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 20 shows a schematic structural view of a rotor structure according to an embodiment of the invention;

fig. 21 shows a schematic structural view of a motor structure according to an embodiment of the present invention;

fig. 22 shows a schematic structural view of a motor structure according to an embodiment of the present invention;

fig. 23 shows a schematic structural view of a laundry treating apparatus according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 23 is:

100: a rotor structure; 102: a rotor core; 1022: punching; 1024: an assembly port; 103: a permanent magnet slot; 104: a permanent magnet; 106: a magnetic barrier; 1062: a first groove section; 1064: a second groove section; 200: a motor structure; 202: a stator; 204: an air gap; 300: a laundry treating apparatus; 302: a housing.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 23.

Example one

As shown in fig. 1 to 5, the rotor structure 100 according to the present embodiment includes a rotor core and a permanent magnet disposed in the rotor core so as to be driven by the magnetic action of the permanent magnet, and the rotor structure can rotate relative to the stator to achieve normal operation of the motor. Specifically, the rotor core is provided with permanent magnet slots penetrating through two end faces, and the permanent magnets can be arranged in the permanent magnet slots, so that the permanent magnets can be driven by magnetic force conveniently. Still be equipped with the magnetic barrier on rotor core, the extending direction through injecing the magnetic barrier both ends is for orientation permanent magnet and outer fringe, thereby can make the magnetic barrier as the structure of alleviating the magnetic saturation degree, form the magnetic barrier at rotor structure pivoted in-process, with the power density and the torque density that improve the motor, promote the overload capacity of motor, effectively improve the torque pulsation of motor, reduce motor permanent magnetism quantity, also on the basis that reduces manufacturing cost, very big promotion motor performance, improve the cost performance of the motor of using rotor structure, improve the product competitiveness.

Further, in one particular embodiment, as shown in fig. 12-20, the flux barriers are provided on only one side of the permanent magnet slots. Further, locate the magnetic barrier on the weak magnetism side in permanent magnet groove, can understand, when rotor structure rotated, the permanent magnet can form weak magnetism side and strong magnetism side in the direction of magnetizing, can satisfy the suppression to motor quadrature axis armature reaction to alleviate rotor core's saturation.

Specifically, in the case of unidirectional rotation of the rotor structure, the magnetic barrier is disposed on the front side of the permanent magnet slot by being restricted in the rotational direction of the rotor structure, that is, the magnetic barrier is disposed on the weak magnetic side of the permanent magnet slot. When the rotor structure rotates, the permanent magnet can form a weak magnetic side and a strong magnetic side in the magnetizing direction, and the inhibition on motor quadrature axis armature reaction can be met by arranging the magnetic barrier on the weak magnetic side of the permanent magnet groove, so that the saturation degree of a rotor core is relieved.

In another specific embodiment, as shown in fig. 1, the magnetic barriers are disposed on both sides of the permanent magnet slot in the magnetizing direction, that is, on both circumferential sides of the rotor core.

According to the rotor structure 100 of the scheme, on one hand, quadrature axis armature reaction of the motor is effectively inhibited, the magnetic saturation degree is relieved, the load counter electromotive force is reduced, and the torque density and the overload capacity of the motor are improved; on the other hand, since the magnetic barriers 106 are hollowed out of the rotor core 102, the amount of the rare earth permanent magnets 104 can be reduced.

There may be a plurality of permanent magnet slots 103, and generally, the plurality of permanent magnet slots 103 are uniformly arranged around the axis of the rotor core 102.

Wherein, the extending direction of permanent magnet slot 103 can be the axial direction of rotor core 102, still can be for being the direction that is certain angle with the axial, of course, because of the consideration of processing cost and processing degree of difficulty, generally only need with permanent magnet slot 103 along the axial setting, link up rotor core 102 two terminal surfaces can.

It can be understood that, for rotor core 102, permanent magnet slots 103 and the periphery of rotor core 102 are located in two directions, so that magnetic barrier 106 is bent to some extent by limiting the two ends of magnetic barrier 106 to face the outer edges of permanent magnets 104 and rotor core 102, respectively.

Further, for convenience of processing, the rotor core 102 is mainly composed of a plurality of punching sheets 1022, the rotor core 102 can be formed by laminating and assembling the plurality of punching sheets 1022, it should be noted that, during processing, an assembly opening 1024 can be separately processed on each punching sheet 1022, and then after assembly, the plurality of assembly openings 1024 can form the permanent magnet slots 103 for accommodating the permanent magnets 104, so as to facilitate the rotation of the rotor structure 100.

Further, rotor core can formula structure as an organic whole, still can be for multistage formula structure, specifically, if for multistage formula structure, then the accessible divide into the multistage with the punching sheet that the stromatolite set up, and every section constitutes by a plurality of punching sheets and realizes, and multistage core section is arranged along the axial can form rotor core to realize the electromagnetic action of rotor in the motor.

In a specific embodiment, the cross section of the rotor core 102 is circular, the rotor core 102 is cylindrical as a whole, the rotor core 102 can be divided into the same number of sector areas by arranging an even number of permanent magnet slots 103, it can be understood that the permanent magnet slots 103 are uniformly arranged on the rotor core 102 around the axis, and two permanent magnet slots 103 are respectively arranged on two circumferential sides of each sector area, so that the permanent magnets 104 can be conveniently installed on one hand, and the whole processing and assembling are facilitated on the other hand.

Example two

As shown in fig. 1 to 5, the rotor structure 100 according to the present embodiment includes a rotor core 102 and permanent magnets 104 disposed in the rotor core 102, so as to be driven by magnetic action of the permanent magnets 104, and the rotor structure 100 can rotate relative to a stator 202 to achieve normal operation of the motor. Specifically, permanent magnet slots 103 penetrating through both end surfaces are provided on the rotor core 102, and the permanent magnets 104 may be disposed in the permanent magnet slots 103, which may facilitate the permanent magnets 104 to be driven by magnetic force. Still be equipped with magnetic barrier 106 on rotor core 102, through the extending direction of restricting magnetic barrier 106 both ends for towards permanent magnet 104 and outer fringe, thereby can make magnetic barrier 106 be as the structure of alleviating the magnetic saturation degree, form the magnetic barrier at rotor structure 100 pivoted in-process, with the power density and the torque density that improve the motor, promote the overload capacity of motor, effectively improve the torque ripple of motor, reduce the motor permanent magnetism quantity, also on the basis of reducing manufacturing cost, very big promotion motor performance, improve the cost performance of the motor that uses rotor structure 100, improve product competitiveness.

The magnetic barrier 106 mainly comprises two parts, namely a first groove section 1062 and a second groove section 1064, wherein the first groove section 1062 is communicated with the second groove section 1064, one ends of the first groove section 1062, which are opposite to the second groove section 1064, face the periphery of the permanent magnet groove 103 and the periphery of the rotor core 102, the two parts of the magnetic barrier 106 face structures at different positions, and need to be communicated with each other, and the quadrature axis armature reaction of the motor can be effectively inhibited under the combined action of the two parts, so that the effect of magnetic saturation degree is relieved.

Furthermore, the extension directions of the first groove section 1062 and the second groove section 1064 are limited, so that the quadrature axis armature reaction of the motor can be effectively inhibited and the magnetic saturation degree can be relieved under the action of the magnetic barrier, so that the power density and the torque density of the motor are improved, the overload capacity of the motor is improved, and the torque pulsation of the motor is effectively improved. Specifically, the cross section of the rotor core 102 is a normal plane of the axis of the rotor core 102, and on the cross section, the rotor core is divided into 2P sector areas by the permanent magnet slots, and the angle between the extending direction of the first slot segment and the extending direction of the permanent magnet slots is [ (180 °/2P),90 ° ]. Of course, in this cross section, the extending direction of the second slot segment 1064 and the rotating direction of the rotor core 102 may be orthogonal or approximately orthogonal, and the angle therebetween may be in the range of [60 °,120 ° ].

In one embodiment, the first and

second channel segments

1062, 1064 are in communication with each other, which reduces the difficulty and cost of machining by limiting the smooth transition between the first and

second channel segments

1062, 1064.

It is understood that the smooth transition between the first groove portion 1062 and the second groove portion 1064 is a curved transition, and when a certain included angle is formed between the first groove portion 1062 and the second groove portion 1064, if the groove widths of the two groove portions are the same, the two groove portions may also be circular arc transitions.

In a specific embodiment, the cross section of the permanent magnet slot is polygonal, and the polygonal permanent magnet slot can be more favorable for occupying the space of the rotor core, namely the space of the rotor internal core can be fully utilized, so that the torque density is optimized. The magnetizing direction of the polygon from the radial outer side to the radial inner side of the rotor is in a narrow-wide-narrow structure, the width of the narrow part is w1, the width of the wide part is w2, and the relation is satisfied, wherein w2 is more than or equal to w 1.

EXAMPLE III

As for the first slot segment 1062, in an embodiment, one end of the first slot segment 1062 facing the permanent magnet slot 103 is directly connected to the permanent magnet slot 103, and may be directly cut from the permanent magnet slot 103 side and extended into the rotor core 102 during machining, so as to facilitate machining, and as for the structure, the first slot segment 1062 is directly connected to the permanent magnet slot 103, so as to achieve the effect of suppressing the quadrature axis armature reaction of the motor.

In another embodiment, the end of the first slot segment 1062 facing the permanent magnet slot 103 is not communicated with the permanent magnet slot 103, that is, there is a certain distance therebetween, and as for the magnetic barrier 106 as a whole, the end thereof is a closed structure, and as for the structure, there is a certain distance between the first slot segment 1062 and the permanent magnet slot 103, so that the effect of suppressing the quadrature axis armature reaction of the motor can also be achieved.

Wherein the first spacing between the first slot segment 1062 and the permanent magnet slot 103 is greater than or equal to 0.2 mm.

As for the second slot segment 1064, in an embodiment, one end of the second slot segment 1064 facing the peripheral edge is directly connected to the peripheral edge, and can be directly cut and extended from the outer side of the rotor core 102 during machining, so as to facilitate machining, and as for the structure, the second slot segment 1064 is directly connected to the peripheral edge, so as to achieve the effect of suppressing the quadrature axis armature reaction of the motor.

In another embodiment, the end of the second slot segment 1064 facing the periphery is not communicated with the periphery, i.e. there is a certain distance therebetween, and as for the magnetic barrier 106 as a whole, the end thereof is a closed structure, and as for the structure, there is a certain distance between the second slot segment 1064 and the periphery, so as to achieve the effect of suppressing the quadrature axis armature reaction of the motor.

Wherein a second spacing between the second groove section 1064 and the periphery is greater than or equal to 0.2 mm.

It is emphasized that the communication relationship of both the first slot section 1062 and the second slot section 1064 with both the permanent magnet slot 103 and the periphery, respectively, combines four, in particular: the first groove section 1062 is communicated, and the second groove section 1064 is not communicated; the first groove sections 1062 are communicated, and the second groove sections 1064 are communicated; the first groove section 1062 is not communicated, and the second groove section 1064 is communicated; the first channel section 1062 is not in communication and the second channel section 1064 is not in communication.

When the rotor is communicated, the q-axis inductance can be effectively reduced, motor quadrature axis armature reaction is inhibited, iron core saturation is relieved, and when the rotor is not communicated, the structural strength of the rotor can be guaranteed.

The number of the permanent magnet slots 103 arranged on the rotor core 102 is multiple, and the communication relationship between the first slot section 1062 and the second slot section 1064 of each permanent magnet slot 103 is independent, so that the permanent magnet slots can be flexibly arranged according to actual requirements.

In a specific embodiment, among the plurality of magnetic barriers arranged corresponding to the same permanent magnet, the first slot segment is consistent with the permanent magnet slot in communication relation, and the second slot segment is consistent with the outer edge of the rotor core in communication relation. For a plurality of magnetic barriers correspondingly arranged in the same permanent magnet slot, the connection relation between the first slot section and the second slot section and the outer edges of the permanent magnet slot and the outer edges of the rotor core are respectively consistent by limiting, so that the processing efficiency is improved.

In a specific embodiment, among the plurality of magnetic barriers corresponding to the same permanent magnet, the communication relationship between the first slot segment of at least two adjacent magnetic barriers and the permanent magnet slot is inconsistent, and the communication relationship between the second slot segment and the outer edge of the rotor core is inconsistent. For a plurality of magnetic barriers correspondingly arranged in the same permanent magnet groove, the communication relation between the first groove section and the second groove section is staggered, it can be understood that if the first groove section is communicated with the permanent magnet groove, a larger armature suppression effect can be achieved, but due to the direct crevasse design, certain influence can be generated on the strength, if the first groove section is not communicated with the permanent magnet groove, certain strength can be achieved, but for the suppression effect of the armature, the strength can be slightly weaker, the communication relation between the second groove section and the outer edge is also the same, through the staggered communication relation, the armature suppression effect and the strength can be comprehensively improved, and the use feasibility of the rotor structure is improved.

In a specific embodiment, among the plurality of magnetic barriers corresponding to the same permanent magnet, the first slot segment of at least one magnetic barrier is not communicated with the permanent magnet slot, and the second slot segment is not communicated with the outer edge of the rotor core. For a plurality of magnetic barriers correspondingly arranged in the same permanent magnet groove, the first groove section and the second groove section which are used for limiting the magnetic barriers are not communicated with the permanent magnet groove and the outer edge respectively, so that the structural strength of the rotor core in the operation process can be effectively improved due to the fact that the two ends are not communicated, and the overall stability of the whole rotor structure in the rotating process is improved.

In a specific embodiment, the first slot section and the second slot section are straight line sections, so that the processing is convenient, and the suppression effect on the quadrature axis armature reaction is further facilitated by limiting the included angle between the two straight line sections to [60 degrees, 120 degrees ].

Example four

For the structure in which the magnetic barriers are disposed on both sides in the magnetizing direction, the communication manner between the two ends of the magnetic barriers is diversified, as shown in fig. 1 and 6 to 11.

As shown in fig. 1, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. Three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. All magnetic barriers on two sides of each permanent magnet slot are not communicated with the permanent magnet slot, and all magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 6, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. One of the magnetic barriers is communicated with the permanent magnet slot, and the two magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 7, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. Two magnetic barriers are communicated with the permanent magnet slots, and one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 8, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. One of the magnetic barriers is communicated with the permanent magnet slots, and the two magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 9, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. Three magnetic barriers are communicated with the permanent magnet grooves, and the three magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 10, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. The three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is not communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 11, three magnetic barriers are respectively disposed on two sides of the permanent magnet slot, but the present invention is not limited to three magnetic barriers. Three magnetic barriers are communicated with the permanent magnet slots, and the three magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots on two sides of each permanent magnet slot, and at least one magnetic barrier is not communicated with the air gap on the radial outer side of each sector area of the rotor core.

Further, in the structure in which the magnetic barrier is provided only on the weak magnetic side in the magnetization direction, the communication method between both ends of the magnetic barrier is also diversified.

As shown in fig. 12, the motor is along anticlockwise rotation, is provided with three magnetic obstacles beside the permanent magnet groove along the anticlockwise rotation direction side of motor, the utility model discloses not limited to three magnetic obstacles. Three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. All magnetic barriers on two sides of each permanent magnet slot are not communicated with the permanent magnet slot, and all magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 13, the motor is along clockwise rotation, is provided with three magnetic barrier along the clockwise rotation direction side of motor by the permanent magnet groove, the utility model discloses not limited to three magnetic barrier. Three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. All magnetic barriers on two sides of each permanent magnet slot are not communicated with the permanent magnet slot, and all magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core.

As shown in fig. 17, the motor is provided with three magnetic barriers along the anticlockwise side of the permanent magnet slot along the anticlockwise side of the motor, the utility model discloses not limited to three magnetic barriers. One of the magnetic barriers is communicated with the permanent magnet slot, and the two magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots, and at least one magnetic barrier is communicated with the air gap at the radial outer side of each sector area of the rotor core.

As shown in fig. 18, the motor rotates clockwise, and is provided with three magnetic barriers beside the permanent magnet slot along the counterclockwise direction of the motor, the utility model discloses not limited to three magnetic barriers. One of the magnetic barriers is communicated with the permanent magnet slot, and the two magnetic barriers are not communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots, and at least one magnetic barrier is communicated with the air gap at the radial outer side of each sector area of the rotor core.

As shown in fig. 19, the motor is along anticlockwise rotation, is provided with three magnetic obstacles beside the permanent magnet groove along the anticlockwise rotation direction side of motor, the utility model discloses not limited to three magnetic obstacles. Three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots respectively, and at least one magnetic barrier is not communicated with the air gap on the radial outer side of each sector area of the rotor core; or at least one magnetic barrier on two sides of each permanent magnet slot is not communicated with the permanent magnet slot, and at least one magnetic barrier on the radial outer side of each sector area of the rotor core is communicated with the air gap.

As shown in fig. 20, the motor rotates clockwise, and is provided with three magnetic barriers along the clockwise rotation direction side of motor beside the permanent magnet slot, the utility model discloses not limited to three magnetic barriers. Three magnetic barriers are not communicated with the permanent magnet slots, and the three magnetic barriers are communicated with the air gap on the radial outer side of each sector area of the rotor core. At least one magnetic barrier is communicated with the permanent magnet slots respectively, and at least one magnetic barrier is not communicated with the air gap on the radial outer side of each sector area of the rotor core; or at least one magnetic barrier on two sides of each permanent magnet slot is not communicated with the permanent magnet slot, and at least one magnetic barrier on the radial outer side of each sector area of the rotor core is communicated with the air gap.

EXAMPLE five

As shown in fig. 21 and fig. 22, a motor structure 200 provided in this embodiment includes a stator 202 and a rotor structure 100, and the rotor structure 100 can rotate relative to the stator 202, wherein the rotor structure 100 of any of the embodiments is disposed in the motor structure 200, so that the motor structure has the beneficial effects of any of the embodiments, and details are not repeated herein.

It should be emphasized that, since the motor structure 200 includes the above-mentioned rotor structure 100, on one hand, the quadrature axis armature reaction of the motor is effectively inhibited, the magnetic saturation degree is relieved, the load counter electromotive force is reduced, and the torque density and the overload capacity of the motor are improved; on the other hand, the magnetic field harmonic of the rotor in the air gap 204 can be weakened, and the torque ripple of the motor can be improved.

EXAMPLE six

As shown in fig. 23, the clothes treating apparatus 300 of the present embodiment includes a casing 302 and a motor structure 200 disposed in the casing 302, and the motor structure 200 in the fifth embodiment is disposed in the casing 302, so that the beneficial effects of the motor structure 200 are achieved, and the details are not repeated herein.

The application also provides a concrete rotor, in order to restrain motor quadrature axis armature reaction, alleviates the iron core saturation, promotes the torque density and the overload capacity of motor. The utility model provides a rotor and unidirectional rotating electrical machines thereof, including permanent magnet, rotor core, wherein rotor core contains along a plurality of permanent magnet groove of radial distribution, and the permanent magnet inlays puts at the permanent magnet inslot. The rotor core is made by silicon steel sheet pile-up, is provided with the magnetic barrier along the motor direction of rotation side by the permanent magnet groove, and the towards permanent magnet groove and rotor core's towards the towards piece excircle respectively at the both ends of magnetic barrier.

In order to not influence the permanent magnet flux linkage, the path of a magnetic force line can be normalized, the magnetic field harmonic wave in an air gap is weakened, and the torque ripple of the motor is improved. The extending direction of one end of the magnetic barrier, which points to the outer circle of the punching sheet of the rotor core, is orthogonal or approximately orthogonal to the running direction of the rotor. Wherein, the range of the nearly orthogonal finger included angle is between 60 and 120 degrees. The angle between the extending direction of the magnetic barrier pointing to one end of the permanent magnet groove and the permanent magnet groove is between (180/2P) DEG and 90 deg.

In order to effectively reduce q-axis inductance, inhibit motor quadrature axis armature reaction and relieve iron core saturation when a magnetic barrier is conducted with a permanent magnet slot or the outer circle of a punching sheet of a rotor iron core; when the magnetic barrier is not conducted with the permanent magnet slot or the excircle of the punching sheet of the rotor core, the structural strength of the rotor can be ensured. At least one of each magnetic barrier and the permanent magnet slot is not communicated with the radial outer air gap of each sector area of the rotor core, or all the magnetic barriers are communicated with the permanent magnet slot and the radial outer air gap of each sector area of the rotor core.

The rotor structure strength is guaranteed, q-axis inductance can be effectively reduced, motor quadrature axis armature reaction is restrained, and iron core saturation is relieved. If the magnetic barriers on the rotor iron core are in a non-communicated state, the distance between the magnetic barriers and the permanent magnet slot or the outer surface of the rotor is d, and d is more than or equal to 0.2 mm.

In order to make full use of the rotor internal core space, the torque density is optimized. The permanent magnet slots are in the shape of a polygon with a central symmetry. The magnetizing direction of the polygon from the radial outer side to the radial inner side of the rotor is in a narrow-wide-narrow structure, the width of the narrow part is w1, the width of the wide part is w2, and the relation is satisfied, wherein w2 is more than or equal to w 1.

According to an embodiment of the present invention, one end of the magnetic barrier 106 points to the permanent magnet slot 103 and the extending direction is orthogonal or approximately orthogonal to the permanent magnet slot 103, and the other end points to the outer circle of the punching sheet 1022 of the rotor core 102 and the extending direction is orthogonal or approximately orthogonal to the rotor running direction. Wherein approximately orthogonal here means an included angle in the range of 60120 °.

The utility model also provides an unidirectional rotating motor, including permanent magnet, rotor and stator core. The stator, the stator includes stator core and stator winding, is equipped with a plurality of stator dogteeth on the stator core, and a plurality of stator dogteeth distribute around stator core's central line circumference, and the stator winding is around establishing on a plurality of stator dogteeth. The rotor, the rotor contains rotor core, and rotor core contains a plurality of permanent magnet groove along radial distribution, and rotor core is by permanent magnet groove division 2P fan-shaped region of number of poles.

According to an embodiment of the present invention, all the magnetic barriers 106 on both sides of the permanent magnet slot 103 of each pole are not communicated with the permanent magnet slot 103, and at least one magnetic barrier 106 is communicated with the air gap 204 outside each sector area of the rotor core 102 in the radial direction; or at least one magnetic barrier 106 is respectively communicated with the permanent magnet slots 103 on two sides of the permanent magnet slot 103 of each pole, and all the magnetic barriers 106 are not communicated with the air gap 204 on the radial outer side of each sector area of the rotor core 102.

If any end of the magnetic barrier 106 on the rotor core 102 is in a non-communicating state (not communicating with the permanent magnet slots 103 and the air gap 204), then the end is at a distance d >0.2mm from the permanent magnet slots 103 or the outer circumferential surface of the rotor.

In the present embodiment, only by designing multiple layers of quadrature axis magnetic barriers on the rotor core 102 and using at least one relatively inexpensive permanent magnet material to perform the permanent magnet 104 combination design, the overload capability of the motor can be effectively improved, and the torque ripple and the cost of the motor can be reduced.

According to the utility model provides a rotor structure, motor structure and clothing processing apparatus, on the one hand, on the basis of having the quadrature axis armature reaction of suppression motor, alleviating the magnetic saturation degree and reducing load back electromotive force, promoting the torque density and the overload capacity of motor, can set up the position of magnetic barrier according to the restriction of the direction of rotation of rotor structure; on the other hand, the magnetic barrier is formed by hollowing out the rotor core, so that the use amount of the rare earth permanent magnet can be reduced.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotor structure, comprising:

the permanent magnet motor comprises a rotor core, wherein a plurality of permanent magnet slots are formed in the rotor core and are arranged in a surrounding manner along the circumferential direction of the rotor core;

the permanent magnet is arranged in the permanent magnet groove;

a magnetic barrier arranged on the rotor core, the rotor structure can rotate in one direction or two directions along the circumferential direction, the magnetic barrier is arranged on at least one side of the permanent magnet groove along the rotation direction of the rotor structure,

and two ends of the magnetic barrier face to the outer edges of the permanent magnet and the rotor core respectively.

2. The rotor structure according to claim 1, wherein the permanent magnet slot has a polygonal cross-section and a centrosymmetric cross-section.

3. The rotor structure according to claim 2, wherein the permanent magnet slots specifically include a first slot portion, a second slot portion, and a third slot portion connected in a radial direction of the rotor core,

wherein the width of the first groove portion is less than or equal to the width of the second groove portion, and the width of the third groove portion is less than or equal to the width of the second groove portion.

4. The rotor structure according to claim 1, wherein the rotor structure is rotated unidirectionally, and at least one of the flux barriers corresponding to each of the permanent magnet slots is provided on a front side of the permanent magnet slot in a rotational direction of the rotor structure.

5. The rotor structure according to any one of claims 1 to 4, characterized in that the magnetic barrier comprises in particular:

a first slot segment extending towards the permanent magnet slot;

and the second slot section is communicated with the first slot section and extends towards the periphery of the rotor core.

6. The rotor structure of claim 5,

the rotor core is divided into 2P fan-shaped areas by the permanent magnet grooves, and the included angle between the extending direction of the first groove section and the extending direction of the permanent magnet grooves is [ (180 DEG/2P), 90 DEG ];

the included angle between the extending direction of the second slot section and the rotating direction of the rotor core is [60 degrees ], 120 degrees ].

7. A rotor structure according to claim 5, characterized in that the end of the first slot segment remote from the second slot segment communicates with the permanent magnet slot.

8. The rotor structure of claim 5, wherein there is a first spacing between an end of the first slot segment remote from the second slot segment and the permanent magnet slot.

9. The rotor structure of claim 8, wherein the first pitch is greater than or equal to 0.2 mm.

10. The rotor structure of claim 5, wherein an end of the second slot segment remote from the first slot segment communicates with a periphery of the rotor core.

11. The rotor structure of claim 5, wherein a second spacing exists between an end of the second slot segment remote from the first slot segment and a periphery of the rotor core.

12. The rotor structure of claim 11, wherein the second pitch is greater than or equal to 0.2 mm.

13. The rotor structure according to claim 5, wherein, in the plurality of magnetic barriers provided corresponding to the same permanent magnet, the first slot segment is in communication with the permanent magnet slot, and the second slot segment is in communication with the outer edge of the rotor core.

14. The rotor structure according to claim 5, wherein, of the plurality of flux barriers provided corresponding to the same permanent magnet, the first slot segments of at least two adjacent flux barriers are not in a consistent communication relationship with the permanent magnet slot, and the second slot segments are not in a consistent communication relationship with the outer edge of the rotor core.

15. The rotor structure according to claim 5, wherein, of the plurality of magnetic barriers provided corresponding to the same permanent magnet, at least one first slot segment of the magnetic barrier is not communicated with the permanent magnet slot, and the second slot segment is not communicated with the outer edge of the rotor core.

16. The rotor structure of claim 5, wherein the first slot segment is linear and the second slot segment is linear, and wherein the angle between the first slot segment and the second slot segment is [60 °,120 ° ].

17. The rotor structure of claim 5, wherein the first slot segment and/or the second slot segment is curvilinear.

18. The rotor structure according to claim 1, characterized in that the rotor core comprises in particular:

a plurality of punching sheets which are arranged in a laminated way,

and each punching sheet is provided with the permanent magnet groove.

19. The rotor structure of claim 18, wherein a plurality of said laminations form a plurality of axially disposed core segments, and a plurality of said core segments are axially disposed along said rotor core to form said rotor core.

20. An electric machine construction, comprising:

a stator structure;

a rotor structure as claimed in any one of claims 1 to 19, arranged coaxially with the stator structure, and capable of unidirectional or bidirectional rotation relative to the stator structure.

21. The electric machine structure according to claim 20, characterized in that the stator structure comprises in particular:

stator core and stator winding, be equipped with a plurality of stator dogteeth on the stator core, a plurality of stator dogteeth center on stator core's axis circumference distributes, stator winding is around establishing on the stator dogtooth.

22. A laundry treating apparatus, comprising:

a housing;

the electric machine structure of claim 20 or 21, provided within the housing.