Stator structure and motor structure having the same

Abstract

The application provides a stator structure and a motor structure with the same, wherein the stator structure comprises: a plurality of stator modules arranged in a splicing mode, each of the stator modules comprising a basic winding structure, a first compensation winding structure arranged at a first side of the basic winding structure, the first compensation winding structure comprising a plurality of second coils arranged in an array, and a second compensation winding structure arranged at a second side of the basic winding structure, the second compensation winding structure comprising a plurality of third coils arranged in an array, the first side and the second side of the basic winding structure being two sides arranged oppositely in a first direction; and wherein the first compensation winding structure of one of the two stator modules arranged adjacently in the first direction is arranged in a lap joint mode with the second compensation winding structure of the other stator module. The technical scheme of the application can effectively solve the problem of unstable movement of a mover structure at a splicing gap between adjacent stator modules in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a stator structure and an electric machine structure with the same. BACKGROUND

[0002] In the related art, the planar stator is usually a single stator module with multiple layers of coils stacked inside, and multiple such stator modules are placed in the same plane to form a large-area planar magnetic suspension system. However, from a physical point of view, the splicing of adjacent stator modules cannot be seamless, which causes the mover structure to move unstably at the splicing gap of adjacent stator modules and vibrate when moving across the stator modules.

[0003] Therefore, there is currently a problem in the field that the mover structure moves unstably at the splicing gap of adjacent stator modules. SUMMARY

[0004] The main purpose of the present application is to provide a stator structure and an electric machine structure with the same to solve the problem of the mover structure moving unstably at the splicing gap of adjacent stator modules in the related art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a stator structure is provided, comprising multiple stator modules arranged in splicing, wherein each stator module comprises: a basic winding structure comprising multiple first coils arranged in an array, the first coil comprising multiple first sub-coils arranged in a second direction and multiple second sub-coils arranged in a first direction, wherein the first direction and the second direction are arranged perpendicularly; a first compensation winding structure arranged at a first side of the basic winding structure, the first compensation winding structure comprising multiple second coils arranged in an array; a second compensation winding structure arranged at a second side of the basic winding structure, the second compensation winding structure comprising multiple third coils arranged in an array, the first side and the second side of the basic winding structure being two sides arranged oppositely in the first direction; wherein the first compensation winding structure of one of the two stator modules arranged adjacently in the first direction is arranged in lap with the second compensation winding structure of the other stator module.

[0006] Further, the cross section of the basic winding structure is a rectangular structure, and the stator module further comprises: a third compensation winding structure arranged at a third side of the basic winding structure, the third compensation winding structure comprising multiple fourth coils arranged in an array; a fourth compensation winding structure arranged at a fourth side of the basic winding structure, the fourth compensation winding structure comprising multiple fifth coils arranged in an array, the third side and the fourth side of the basic winding structure being two sides arranged oppositely in the second direction; wherein the third compensation winding structure of one of the two stator modules arranged adjacently in the second direction is arranged in lap with the fourth compensation winding structure of the other stator module.

[0007] Further, the stator module further comprises: a fifth compensation winding structure arranged at a corner position of the basic winding structure and adjacent to the first compensation winding structure and the third compensation winding structure, the fifth compensation winding structure comprising a plurality of sixth coils arranged in an array; a sixth compensation winding structure arranged at a corner position of the basic winding structure and adjacent to the second compensation winding structure and the fourth compensation winding structure, the sixth compensation winding structure comprising a plurality of seventh coils arranged in an array; wherein the fifth compensation winding structure of one of the four stator modules arranged in a 2x2 array is arranged in a lap joint with the sixth compensation winding structure of another stator module arranged diagonally.

[0008] Further, the basic winding structure and the first compensation winding structure are arranged separately, and the basic winding structure and the first compensation winding structure are electrically connected through a first connecting piece; and / or, the basic winding structure and the second compensation winding structure are arranged separately, and the basic winding structure and the second compensation winding structure are electrically connected through a second connecting piece.

[0009] Further, the basic winding structure comprises a first base body, the first coils are arranged on the first base body, the first compensation winding structure comprises a second base body, the second coils are arranged on the second base body, and the second compensation winding structure comprises a third base body, the third coils are arranged on the third base body, wherein the first base body, the second base body and the third base body are an integral structure.

[0010] Further, the coil phase regularity of the plurality of second coils is continuous with the coil phase regularity of the plurality of first sub-coils, and the plurality of second coils form at least one three-phase winding structure; and / or, the coil phase regularity of the plurality of third coils is continuous with the coil phase regularity of the plurality of second coils, and the plurality of third coils form at least one three-phase winding structure.

[0011] Further, along a third direction, the first compensation winding structure and the second compensation winding structure are arranged in a staggered manner, wherein the third direction is a height direction of the stator structure; the thickness t1 of the basic winding structure, the thickness t2 of the first compensation winding structure and the thickness t3 of the second compensation winding structure satisfy: t1≥t2+t3; or, the thickness t1 of the basic winding structure, the thickness t2 of the first compensation winding structure and the thickness t3 of the second compensation winding structure satisfy: t2=t3=0.5t1.

[0012] Further, the first compensation winding structure is provided with a first magnetic sensing structure, and the second compensation winding structure is provided with a second magnetic sensing structure; the first magnetic sensing structure comprises at least three first magnetic sensors arranged along the first direction; and / or, the second magnetic sensing structure comprises at least three second magnetic sensors arranged along the first direction.

[0013] Further, the width of the first compensation winding structure and the width of the second compensation winding structure are the same, and the coincidence rate of the first compensation winding structure of one of the two stator modules and the second compensation winding structure of the other stator module in the first direction is greater than or equal to 80%.

[0014] Further, the plurality of second coils of the first compensation winding structure are arranged in layers to form a plurality of first coil layers, and the second coils in all the first coil layers extend in the same direction; the plurality of third coils of the second compensation winding structure are arranged in layers to form a plurality of second coil layers, and the third coils in all the second coil layers extend in the same direction, wherein the extending direction of the second coils is arranged at an angle with the extending direction of the third coils; or the plurality of second coils of the first compensation winding structure are arranged in layers to form a third coil layer and a fourth coil layer, and the extending direction of the second coils in the third coil layer is arranged at an angle with the extending direction of the second coils in the fourth coil layer.

[0015] According to another aspect of the present application, there is provided a motor structure, comprising a rotor structure comprising a magnet array; the stator structure as described above, the magnet array being configured to magnetically couple with at least one of the basic winding structure, the first compensation winding structure, and the second compensation winding structure.

[0016] Further, the magnet array comprises a first magnetic group and a second magnetic group, the first magnetic group comprises a plurality of first magnets arranged in columns, and the second magnetic group comprises a plurality of second magnets arranged in columns, wherein the arrangement direction of the first magnetic group is arranged at an angle with the arrangement direction of the second magnetic group.

[0017] Further, the first magnetic group further comprises a plurality of third magnets, the plurality of first magnets are located in the middle part of the first magnetic group, and the two ends of the plurality of first magnets are respectively provided with the third magnets, and the width of the first magnet is greater than the width of the third magnet; and / or, the second magnetic group further comprises a plurality of fourth magnets, the plurality of second magnets are located in the middle part of the second magnetic group, and the two ends of the plurality of second magnets are respectively provided with the fourth magnets, and the width of the second magnet is greater than the width of the fourth magnet.

[0018] Further, the first magnetic group further comprises a plurality of fifth magnets and a plurality of sixth magnets, the two ends of the plurality of first magnets are respectively provided with the fifth magnets and the sixth magnets, and the fifth magnets are located between the first magnets and the sixth magnets, wherein the width of the first magnet is greater than the width of the fifth magnet, and the width of the fifth magnet is greater than the width of the sixth magnet.

[0019] Applying the technical solution of this invention, the stator structure is assembled from multiple stator modules. Each stator module includes a basic winding structure, a first compensation winding structure, and a second compensation winding structure. The basic winding structure includes multiple first coils arranged in an array to provide driving force for the mover structure. The first compensation winding structure is located on a first side of the basic winding structure, and the second compensation winding structure is located on a second side of the basic winding structure. When assembling the stator modules, the first compensation winding structures and second compensation winding structures of two adjacent stator modules arranged along the first direction overlap. Thus, when the mover structure passes two adjacent stator modules... When the moving part passes through the joint between the blocks, it passes through the joint between the first compensating winding structure and the adjacent stator module, and the joint between the second compensating winding structure and the adjacent stator module. When passing through the gap between the joint between the first compensating winding structure and the adjacent stator module, the second compensating winding structure and the base winding structure connected to it provide driving force for the moving part. When passing through the gap between the joint between the second compensating winding structure and the adjacent stator module, the first compensating winding structure and the base winding structure connected to it provide driving force for the moving part, reducing the vibration of the moving part and allowing it to pass smoothly through the adjacent stator module. Therefore, the technical solution of this application can effectively solve the problem of unstable movement of the moving part at the joint between adjacent stator modules in related technologies. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 A perspective schematic diagram of a first embodiment of the stator structure according to the present invention is shown;

[0022] Figure 2 It shows Figure 1 An enlarged schematic diagram of part A of the stator structure;

[0023] Figure 3 A perspective schematic diagram of a second embodiment of the stator structure according to the present invention is shown;

[0024] Figure 4 A perspective schematic diagram of a third embodiment of the stator structure according to the present invention is shown;

[0025] Figure 5 It shows Figure 4 A side view of the stator structure;

[0026] Figure 6 A perspective schematic diagram of a fourth embodiment of the stator structure according to the present invention is shown;

[0027] Figure 7 a side view of a stator structure of the electric machine according to the present application is shown; Figure 6 a side view of a stator structure of the electric machine according to the present application is shown;

[0028] Figure 8 a front view of a first embodiment of a magnet array of a stator of an electric machine structure according to the present application is shown;

[0029] Figure 9 a front view of a second embodiment of a magnet array of a stator of an electric machine structure according to the present application is shown;

[0030] Figure 10 a front view of a third embodiment of a magnet array of a stator of an electric machine structure according to the present application is shown.

[0031] wherein the above figures comprise the following reference signs:

[0032] a, first direction; b, second direction; c, third direction;

[0033] 10, stator module;

[0034] 20, basic winding structure; 21, first coil; 211, first sub-coil; 212, second sub-coil; 21a, U coil; 21b, V coil; 21c, W coil;

[0035] 30, first compensation winding structure; 31, second coil; 31a, compensation U coil; 31b, compensation V coil; 31c, compensation W coil;

[0036] 40, second compensation winding structure; 41, third coil;

[0037] 50, third compensation winding structure; 51, fourth coil;

[0038] 60, fourth compensation winding structure; 61, fifth coil;

[0039] 70, fifth compensation winding structure; 71, sixth coil;

[0040] 80, sixth compensation winding structure; 81, seventh coil;

[0041] 91, first magnetic group; 911, first magnet; 912, third magnet; 92, second magnetic group; 921, second magnet; 922, fourth magnet. DETAILED DESCRIPTION

[0042] Clearly, only a part of the embodiments of the present application instead of the whole is described, and the following describes at least one example embodiment actually only for illustration, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0043] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0044] Unless specifically stated otherwise, the relative arrangement of the components and steps illustrated in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized description. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0045] Figures 1-2 A structural schematic diagram of a first embodiment of a stator structure according to the present application is shown.

[0046] As Figure 1As shown, the present application provides a stator structure, comprising a plurality of stator modules 10 arranged in splicing, wherein each stator module 10 comprises: a basic winding structure 20 comprising a plurality of first coils 21 arranged in an array, the first coil 21 comprising a plurality of first sub-coils 211 arranged in a second direction b and a plurality of second sub-coils 212 arranged in the first direction a, wherein the first direction a and the second direction b are arranged perpendicularly; a first compensation winding structure 30 arranged at a first side of the basic winding structure 20, the first compensation winding structure 30 comprising a plurality of second coils 31 arranged in an array; a second compensation winding structure 40 arranged at a second side of the basic winding structure 20, the second compensation winding structure 40 comprising a plurality of third coils 41 arranged in an array, the first side and the second side of the basic winding structure 20 being two sides arranged oppositely in the first direction a; wherein the first compensation winding structure 30 of one of the two stator modules 10 arranged adjacently in the first direction a is arranged in lap with the second compensation winding structure 40 of the other stator module 10.

[0047] By applying the technical scheme of the embodiment, the stator structure is arranged by splicing a plurality of stator modules 10, each of which comprises a basic winding structure 20, a first compensation winding structure 30 and a second compensation winding structure 40, wherein the basic winding structure 20 comprises a plurality of first coils 21 arranged in an array to provide driving force for the mover structure (to be described in detail below); the first compensation winding structure 30 is arranged at a first side of the basic winding structure 20, and the second compensation winding structure 40 is arranged at a second side of the basic winding structure 20, so that when the stator modules 10 are spliced, the first compensation winding structure 30 and the second compensation winding structure 40 of the two stator modules 10 arranged adjacently in the first direction a are arranged in staggered splicing. Thus, when the mover structure passes through the splicing position between the two adjacent stator modules 10, it will pass through the joint between the first compensation winding structure 30 and the adjacent stator module 10 and the joint between the second compensation winding structure 40 and the adjacent stator module 10, respectively. When passing through the gap of the joint between the first compensation winding structure 30 and the adjacent stator module 10, the second compensation winding structure 40 and the basic winding structure 20 connected thereto provide driving force for the mover structure; when passing through the gap of the joint between the second compensation winding structure 40 and the adjacent stator module 10, the first compensation winding structure 30 and the basic winding structure 20 connected thereto provide driving force for the mover structure. This arrangement can more stably drive the mover structure and reduce the vibration generated by the mover structure, so that the mover structure smoothly passes through the adjacent stator modules 10. Therefore, the technical scheme of the embodiment can effectively solve the problem of unstable movement of the mover structure at the splicing gap of the adjacent stator modules in the related art.

[0048] In addition, the first compensation winding structure 30 and the second compensation winding structure 40 can also provide a setting basis for the setting of the adjacent stator modules 10, and additional constraints can be generated on the splicing of the adjacent stator modules 10 through the shape structure of the stator modules 10, so as to increase the splicing accuracy between the adjacent stator modules 10.

[0049] In the embodiment, the basic winding structure 20 includes a plurality of coil layers, the first compensation winding structure 30 includes a plurality of coil layers, and the second compensation winding structure 40 includes a plurality of coil layers. The plurality of coil layers in the first compensation winding structure 30 are arranged in one-to-one correspondence with part of the coil layers in the basic winding structure 20, and the plurality of coil layers in the second compensation winding structure 40 are arranged in one-to-one correspondence with part of the coil layers in the basic winding structure 20. The two coil layers arranged in correspondence in the first compensation winding structure 30 and the basic winding structure 20 are arranged in coplanar manner, and the two coil layers arranged in correspondence in the second compensation winding structure 40 and the basic winding structure 20 are arranged in coplanar manner.

[0050] As Figure 1As shown, the cross section of the basic winding structure 20 is a rectangular structure, and the stator module 10 further comprises: a third compensation winding structure 50 arranged at a third side of the basic winding structure 20, the third compensation winding structure 50 comprising a plurality of fourth coils 51 arranged in an array; and a fourth compensation winding structure 60 arranged at a fourth side of the basic winding structure 20, the fourth compensation winding structure 60 comprising a plurality of fifth coils 61 arranged in an array, the third side and the fourth side of the basic winding structure 20 being two sides arranged opposite to each other in a second direction b, the second direction b being perpendicular to the first direction a; wherein the third compensation winding structure 50 of one of the two stator modules 10 arranged adjacent to each other in the second direction b is arranged in abutment with the fourth compensation winding structure 60 of the other stator module 10. The cross section of the basic winding structure 20 can be rectangular or square; the third compensation winding structure 50 is arranged at the third side of the basic winding structure 20, and the fourth compensation winding structure 60 is arranged at the fourth side of the basic winding structure 20, and when the stator modules 10 are spliced, the third compensation winding structure 50 and the fourth compensation winding structure 60 of the two stator modules 10 arranged adjacent to each other in the first direction b are arranged in abutment, so that when the mover structure passes through the splicing position between the two adjacent stator modules 10, it will pass through the joint between the third compensation winding structure 50 and the adjacent stator module 10 and the joint between the fourth compensation winding structure 60 and the adjacent stator module 10, respectively, and when the gap of the joint between the third compensation winding structure 50 and the adjacent stator module 10, the fourth compensation winding structure 60 and the basic winding structure 20 connected thereto provide driving force for the mover structure; when passing through the gap of the joint between the fourth compensation winding structure 60 and the adjacent stator module 10, the third compensation winding structure 50 and the basic winding structure 20 connected thereto provide driving force for the mover structure. When the stator modules 10 are arranged in an N x M manner (N and M are both positive integers greater than or equal to 2), the stator modules 10 are provided with compensation winding structures at the first side, the second side, the third side and the fourth side, respectively, so that the vibration of the mover structure when passing through the joints of the stator modules 10 in the first direction a and the second direction b can be reduced.

[0051] As Figure 1As shown, the base winding structure 20 is provided separately from the first compensation winding structure 30, and the base winding structure 20 is electrically connected to the first compensation winding structure 30 through a first connecting member; the base winding structure 20 is provided separately from the second compensation winding structure 40, and the base winding structure 20 is electrically connected to the second compensation winding structure 40 through a second connecting member. The first connecting member and the second connecting member are a pin or a FPC (Flexible Printed Circuit), and the input end and the output end of each layer of coils in the base winding structure 20 are located on the circumferential side, so that the first compensation winding structure 30 can be electrically connected to the base winding structure 20 through the first connecting member, and the second compensation winding structure 40 can be electrically connected to the base winding structure 20 through the second connecting member. In this way, the assembly between the base winding structure 20, the first compensation winding structure 30 and the second compensation winding structure 40 is more flexible. Of course, in an embodiment not shown in the figure, the base winding structure is provided separately from the first compensation winding structure, or the base winding structure is provided separately from the second compensation winding structure; the base winding structure also has a similar arrangement between the third compensation winding structure and the fourth compensation winding structure.

[0052] As shown in FIG. 1, the first coil 21 includes a plurality of first sub-coils 211 arranged along the second direction b and a plurality of second sub-coils 212 arranged along the first direction a; the coil phase rule of the plurality of second coils 31 is continuous with the coil phase rule of the plurality of first sub-coils 211, and the plurality of second coils 31 form at least one three-phase winding structure; the coil phase rule of the plurality of third coils 41 is continuous with the coil phase rule of the plurality of second sub-coils 212, and the plurality of third coils 41 form at least one three-phase winding structure. Figures 1-2 As shown in FIG. 1, the first coil 21 includes a plurality of first sub-coils 211 arranged along the second direction b and a plurality of second sub-coils 212 arranged along the first direction a; the coil phase rule of the plurality of second coils 31 is continuous with the coil phase rule of the plurality of first sub-coils 211, and the plurality of second coils 31 form at least one three-phase winding structure; the coil phase rule of the plurality of third coils 41 is continuous with the coil phase rule of the plurality of second sub-coils 212, and the plurality of third coils 41 form at least one three-phase winding structure. Figure 2 As shown in FIG. 1, the three first coils 21 near the edge position of the base winding structure 20 relative to the first compensation winding structure 30 form a three-phase winding, and the three first coils 21 are respectively a U coil 21a, a V coil 21b and a W coil 21c from the right bottom to the left top direction in Figure 2 As shown in FIG. 1, the three first coils 21 near the edge position of the base winding structure 20 relative to the first compensation winding structure 30 form a three-phase winding, and the three first coils 21 are respectively a U coil 21a, a V coil 21b and a W coil 21c from the right bottom to the left top direction in Figure 2 As shown in FIG. 1, the three first coils 21 near the edge position of the base winding structure 20 relative to the first compensation winding structure 30 form a three-phase winding, and the three first coils 21 are respectively a U coil 21a, a V coil 21b and a W coil 21c from the right bottom to the left top direction in

[0053] Figure 3A structural schematic of a second embodiment of a stator structure according to the present application is shown.

[0054] As shown in Figure 3 the stator module 10 further comprises: a fifth compensation winding structure 70 arranged at a corner position of the basic winding structure 20 and adjacent to the first compensation winding structure 30 and the third compensation winding structure 50, the fifth compensation winding structure 70 comprising a plurality of sixth coils 71 arranged in an array; and a sixth compensation winding structure 80 arranged at a corner position of the basic winding structure 20 and adjacent to the second compensation winding structure 40 and the fourth compensation winding structure 60, the sixth compensation winding structure 80 comprising a plurality of seventh coils 81 arranged in an array; wherein the fifth compensation winding structure 70 of one of the four stator modules 10 arranged in a 2x2 array is arranged in overlap with the sixth compensation winding structure 80 of another stator module 10 arranged diagonally. When the stator modules 10 are arranged in a 2x2 array, the corner positions where the four stator modules 10 intersect are also driven by winding structures. In addition, the thickness of the fifth compensation winding structure 70 and the sixth compensation winding structure 80 arranged in overlap at the corner can be equivalent to the thickness of the first compensation winding structure 30 and the second compensation winding structure 40 arranged in overlap at the first side and the second side, or equivalent to the thickness of the third compensation winding structure 50 and the fourth compensation winding structure 60 arranged in overlap at the third side and the fourth side.

[0055] As shown in Figure 3 the basic winding structure 20 comprises a first base body on which the first coils 21 are arranged, the first compensation winding structure 30 comprises a second base body on which the second coils 31 are arranged, and the second compensation winding structure 40 comprises a third base body on which the third coils 41 are arranged, wherein the first base body, the second base body, and the third base body are an integral structure. That is, the basic winding structure 20, the first compensation winding structure 30, and the second compensation winding structure 40 are integrally arranged, and when being manufactured, a manufacturing allowance for the first compensation winding structure 30 and the second compensation winding structure 40 is additionally reserved at the outer periphery of the basic winding structure 20, and then the first compensation winding structure 30 and the second compensation winding structure 40 can be formed by printing, winding, or the like in the manufacturing allowance, so that the first coils 21, the second coils 31, and the third coils 41 can be printed or wound in the same batch. Such an arrangement makes the control response of the compensation winding more rapid and the connection more stable. Of course, the basic winding structure 20 and the third compensation winding structure 50 and the fourth compensation winding structure 60 also have similar arrangements.

[0056] In other embodiments of the present application, part of the first compensation winding structure 30, the second compensation winding structure 40, the third compensation winding structure 50, the fourth compensation winding structure 60, the fifth compensation winding structure 70, and the sixth compensation winding structure 80 is provided separately from the basic winding structure 20, and the rest is integrated with the basic winding structure 20.

[0057] Figure 4 And Figure 5 A structure diagram of a third embodiment of the stator structure according to the present application is shown.

[0058] In the present embodiment, the first compensation winding structure 30 is arranged in a staggered manner with the second compensation winding structure 40 along the third direction c, where the third direction c is the height direction of the stator structure, so that when the stator modules 10 are spliced, the first compensation winding structure 30 of one stator module 10 can be spliced in a staggered manner with the second compensation winding structure 40 of another stator module 10.

[0059] The thickness t1 of the basic winding structure 20, the thickness t2 of the first compensation winding structure 30, and the thickness t3 of the second compensation winding structure 40 satisfy t2=t3=0.5t1, so that the first compensation winding structure 30 and the second compensation winding structure 40 after splicing have a driving force comparable to that of the basic winding structure 20. Of course, the third compensation winding structure 50 and the fourth compensation winding structure 60 also have similar arrangements.

[0060] In addition, the plurality of second coils 31 of the first compensation winding structure 30 are arranged in layers to form a plurality of first coil layers, and the second coils 31 in all the first coil layers extend in the same direction. The plurality of third coils 41 of the second compensation winding structure 40 are arranged in layers to form a plurality of second coil layers, and the third coils 41 in all the second coil layers extend in the same direction, where the extension direction of the second coils 31 is arranged at an angle with the extension direction of the third coils 41. In the present embodiment, the extension direction of the second coils 31 is perpendicular to the extension direction of the third coils 41, and the first compensation winding structure 30 can drive the mover structure to move in a direction perpendicular to the extension direction of the second coils 31, and the second compensation winding structure 40 can drive the mover structure to move in a direction perpendicular to the extension direction of the third coils 41. After splicing the first compensation winding structure 30 and the second compensation winding structure 40, the mover structure can be driven to move in a direction perpendicular to the extension direction of the second coils 31 or in a direction perpendicular to the extension direction of the third coils 41. Of course, the third compensation winding structure 50, the fourth compensation winding structure 60, the fifth compensation winding structure 70, and the sixth compensation winding structure 80 also have similar arrangements.

[0061] Figure 6 And Figure 7A structural schematic view of a fourth embodiment of the stator structure according to the present application is shown.

[0062] In the present embodiment, the thickness t1 of the basic winding structure 20, the thickness t2 of the first compensation winding structure 30, and the thickness t3 of the second compensation winding structure 40 satisfy: t1≥t2+t3, that is, the sum of the thickness t2 of the first compensation winding structure 30 and the thickness t3 of the second compensation winding structure 40 is thinner than the thickness t1 of the basic winding structure 20. That is, there is a part of the circumferential side of the basic winding structure 20 on which the first compensation winding structure 30 / second compensation winding structure 40 is not arranged, and an element such as a circuit board, a bridge plate, etc. can be arranged on the circumferential side of the basic winding structure 20 to realize electrical connection with the coils, so as to improve the control performance and reduce the volume of the stator structure.

[0063] Specifically, the thickness of the first compensation winding structure 30 and the thickness of the second compensation winding structure 40 are not limited to specific values in the present application, for example, the thickness of the first compensation winding structure 30 can be greater than the thickness of the second compensation winding structure 40. In specific implementation, the thickness of the first compensation winding structure 30 and the thickness of the second compensation winding structure 40 can be selected according to actual needs.

[0064] In addition, the plurality of second coils 31 of the first compensation winding structure 30 are arranged in layers to form a third coil layer and a fourth coil layer, and the extension direction of the second coils 31 in the third coil layer is arranged at an angle with the extension direction of the second coils 31 in the fourth coil layer. In the present embodiment, the extension direction of the second coils 31 in the third coil layer is perpendicular to the extension direction of the second coils 31 in the fourth coil layer, and the first compensation winding structure 30 can enable the mover structure to move along two extension directions of the second coils 31.

[0065] In other embodiments of the present application, the plurality of second coils 31 form at least one three-phase winding structure; and the plurality of third coils 41 form at least one three-phase winding structure. In this way, the first compensation winding structure 30 has the ability to independently drive the mover structure, and the second compensation winding structure 40 also has the ability to independently drive the mover structure. Of course, the fourth coil 51 and the fifth coil 61 also have similar arrangements.

[0066] In other embodiments of the present application, the first compensation winding structure 30 is provided with a first magnetic sensing structure, and the second compensation winding structure 40 is provided with a second magnetic sensing structure. Since the first compensation winding structure 30 and the second compensation winding structure 40 are arranged in a lap joint manner, the magnetic sensing structures in the overlapping part of the two structures will respectively sense the running track of the mover structure, and the running track sensed by the two magnetic sensing structures partially overlaps, and this partially overlapping track can be used for correction, so that the magnetic sensing structure senses a more continuous running track of the mover structure, avoiding the fault of the running track sensed by the magnetic sensing structure when the mover structure passes through the joint.

[0067] Specifically, in other embodiments of the present application, the first magnetic sensing structure includes at least three first magnetic sensors arranged along the first direction a, and the second magnetic sensing structure includes at least three second magnetic sensors arranged along the first direction a. Preferably, the first magnetic sensors are arranged at the center of the second coil 31, and the second magnetic sensors are arranged at the center of the third coil 41. The three magnetic sensors can sense the magnet array of one period of the mover structure, so that the stator can more accurately sense the movement position of the mover structure. In the present application, the magnetic sensors can be staggered, so that there are more magnetic sensors at the joint gap of the adjacent stator modules 10 to measure the movement data of the mover structure, so that the terminal can process more information to more accurately determine the movement position of the mover structure. When the mover structure runs to the overlapping area, one of the stator modules 10 (the former stator module 10) measures the displacement curve of the mover structure, and the other stator module 10 (the latter stator module 10) simultaneously measures the displacement curve of the mover structure, and the two displacement curves must have an overlapping area, which serves as a verification area. Therefore, for the displacement curve of the mover structure, the displacement curve measured by the former stator module 10 is used before the verification area, the displacement curve of the verification area is measured by the two stator modules 10, and the displacement curve measured by the latter stator module 10 is used after the verification area, until the movement of the mover structure ends, so that a relatively complete displacement curve can be obtained, avoiding the fault of the displacement curve of the mover structure at the joint gap of the adjacent stator modules 10.

[0068] In other embodiments of the present application, the first magnetic sensing structure includes a magnetic sensor that can emit an analog signal. The magnetic sensor can intuitively calculate the displacement curve, and has stronger anti-interference ability and more accurate measurement results.

[0069] In other embodiments of this application, the first magnetic sensing structure includes a first induction coil and a second induction coil, wherein the first induction coil and the second induction coil have a phase difference. The first magnetic sensing structure includes a first induction coil and a second induction coil, the induction coils including a sine coil and a cosine coil, the sine coil and the cosine coil being jointly disposed in the stator module 10, and the sine coil and the cosine coil having the same peak value and period; if the period of the sine coil and the cosine coil is T, then the phase difference between the sine coil and the cosine coil can be T / 4. Of course, the first magnetic sensing structure may also include a combination of a magnetic sensor capable of emitting analog signals and an induction coil; the second magnetic sensor may also have a similar arrangement.

[0070] In other embodiments of this application, the width of the first compensation winding structure 30 is the same as the width of the second compensation winding structure 40, and the overlap rate of the first compensation winding structure 30 of one stator module 10 and the second compensation winding structure 40 of the other stator module 10 in the first direction a is ≥80%.

[0071] It should be noted that the “width” mentioned above refers to the dimensions of the first compensation winding structure 30 and the second compensation winding structure 40 in the first direction a.

[0072] This application also provides a motor structure, which includes a stator structure and a mover structure. The mover structure includes a magnet array. The stator structure is the stator structure in any of the above embodiments. The magnet array is used for magnetic coupling with at least one of the basic winding structure 20, the first compensating winding structure 30, and the second compensating winding structure 40. The above-described stator structure can effectively solve the problem of unstable movement of the mover structure at the splicing gap between adjacent stators in the related art. The motor structure with the above-described stator structure also has the above-described advantages.

[0073] In other embodiments of this application, a roller structure is provided on the moving part structure, and the roller structure rolls in cooperation with the stator structure. The roller structure slides in cooperation with the stator structure, providing support and making the movement of the moving part structure more stable.

[0074] In other embodiments of this application, the magnet array includes a first magnetic group 91 and a second magnetic group 92. The first magnetic group 91 includes a plurality of first magnets 911 arranged in a column, and the second magnetic group 92 includes a plurality of second magnets 921 arranged in a column. The arrangement direction of the first magnetic group 91 intersects the arrangement direction of the second magnetic group 92. In several embodiments, the arrangement direction of the first magnetic group 91 and the arrangement direction of the second magnetic group 92 are perpendicular to each other. Figure 8In the shown embodiment, the magnet array comprises two first magnetic groups 91 and two second magnetic groups 92, each of which is in a rectangular structure, and the two first magnetic groups 91 are located at the upper left and lower right of the magnet array, and the two second magnetic groups 92 are located at the lower left and upper right of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a rectangular structure, the two first magnetic groups 91 are arranged side by side and located in the middle of the magnet array, and the two second magnetic groups 92 are located at the upper end and lower end of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a square structure, and the two first magnetic groups 91 are located at the upper left and lower right of the magnet array, and the two second magnetic groups 92 are located at the lower left and upper right of the magnet array. In this way, the magnet array can move in the direction in which the first magnets 911 are arranged or in the direction in which the second magnets 921 are arranged. Figure 9 In the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a rectangular structure, the two first magnetic groups 91 are arranged side by side and located in the middle of the magnet array, and the two second magnetic groups 92 are located at the upper end and lower end of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a rectangular structure, the two first magnetic groups 91 are arranged side by side and located in the middle of the magnet array, and the two second magnetic groups 92 are located at the upper end and lower end of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a square structure, and the two first magnetic groups 91 are located at the upper left and lower right of the magnet array, and the two second magnetic groups 92 are located at the lower left and upper right of the magnet array. In this way, the magnet array can move in the direction in which the first magnets 911 are arranged or in the direction in which the second magnets 921 are arranged. Figure 10 In the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a rectangular structure, the two first magnetic groups 91 are arranged side by side and located in the middle of the magnet array, and the two second magnetic groups 92 are located at the upper end and lower end of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a rectangular structure, the two first magnetic groups 91 are arranged side by side and located in the middle of the magnet array, and the two second magnetic groups 92 are located at the upper end and lower end of the magnet array; in addition, in the shown embodiment, the first magnetic group 91 and the two second magnetic groups 92 are each in a square structure, and the two first magnetic groups 91 are located at the upper left and lower right of the magnet array, and the two second magnetic groups 92 are located at the lower left and upper right of the magnet array. In this way, the magnet array can move in the direction in which the first magnets 911 are arranged or in the direction in which the second magnets 921 are arranged.

[0075] In other embodiments of the present application, the plurality of first magnets 911 are arranged in an NS period or an NHS period or an NHSH period, or the plurality of second magnets 921 are arranged in an NS period or an NHS period or an NHSH period. Specifically, the NS period refers to: on the side of the first magnetic group 91 facing the stator, the first magnets 911 are arranged in the order of N-pole permanent magnet, S-pole permanent magnet; on the side of the second magnetic group 92 facing the stator, the second magnets 921 are arranged in the order of N-pole permanent magnet, S-pole permanent magnet. The NHS period refers to: on the side of the first magnetic group 91 facing the stator, the first magnets 911 are arranged in the order of N-pole permanent magnet, halbach array, S-pole permanent magnet; on the side of the second magnetic group 92 facing the stator, the second magnets 921 are arranged in the order of N-pole permanent magnet, halbach array, S-pole permanent magnet. The NHSH period arrangement refers to: on the side of the first magnetic group 91 facing the stator, the first magnets 911 are arranged in the order of N-pole permanent magnet, halbach array, S-pole permanent magnet, halbach array; on the side of the second magnetic group 92 facing the stator, the second magnets 921 are arranged in the order of N-pole permanent magnet, halbach array, S-pole permanent magnet, halbach array. Such an arrangement can increase the magnetic field strength on the side of the mover structure facing the stator. Of course, the plurality of first magnets and the plurality of second magnets can be arranged in an NS period or an NHS period or an NHSH period.

[0076] As shown in FIG. 1, the mover structure 1 comprises a plurality of first magnets 911 and a plurality of second magnets 921, and the plurality of first magnets 911 and the plurality of second magnets 921 are arranged in a periodic manner. Figures 8-10As shown, the first magnetic group 91 further comprises a plurality of third magnets 912, the plurality of first magnets 911 are located in the middle of the first magnetic group 91, and the two ends of the plurality of first magnets 911 are respectively provided with the third magnets 912, and the width of the first magnet 911 is greater than the width of the third magnet 912; the second magnetic group 92 further comprises a plurality of fourth magnets 922, the plurality of second magnets 921 are located in the middle of the second magnetic group 92, and the two ends of the plurality of second magnets 921 are respectively provided with the fourth magnets 922, and the width of the second magnet 921 is greater than the width of the fourth magnet 922. The third magnet 912 is provided to enhance the magnetic field on the side of the first magnet 911 facing the stator, and the fourth magnet 922 is provided to enhance the magnetic field on the side of the second magnet 921 facing the stator. Of course, in the embodiments not shown in the figure, the middle of the first magnetic group 91 is provided with a plurality of first magnets 911, the two ends of the first magnetic group 91 are respectively provided with third magnets 912, the width of the first magnet 911 is greater than the width of the third magnet 912, or the middle of the second magnetic group 92 is provided with a plurality of second magnets 921, the two ends of the second magnetic group 92 are respectively provided with fourth magnets 922, and the width of the second magnet 921 is greater than the width of the fourth magnet 922.

[0077] In other embodiments of the application, the middle of the first magnetic group 91 is provided with a plurality of fifth magnets, the two ends of the first magnetic group 91 are respectively provided with sixth magnets and seventh magnets, and the sixth magnets are located between the fifth magnets and the seventh magnets, wherein the width of the fifth magnet is greater than the width of the sixth magnet, and the width of the sixth magnet is greater than the width of the seventh magnet. The sixth magnet and the seventh magnet are provided to enhance the magnetic field on the side of the fifth magnet facing the stator. Of course, the second magnetic group 92 can also have similar arrangements.

[0078] In the description of the application, it should be understood that the orientation words such as "front, rear, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, therefore it cannot be understood as a limitation on the protection scope of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0079] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", and the like, can be used, and relate to the device as illustrated in the figures. However, it is to be understood that no absolute or relative orientation of the device is intended or implied, unless specifically described as such. Terms concerning attachments, coupling and the like, such as "connected" and "coupled" and the like, are to be construed in accordance with their normal meanings, that is, as referring to an indirect or direct connection or coupling. Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to". Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to".

[0080] In addition, it should be pointed out that the use of the terms "first", "second" and the like, to describe various elements, is merely intended to differentiate the elements from one another, and does not connote any special order or order of precedence, unless otherwise specifically indicated. Thus, the use of the terms "first", "second" and the like, is not intended to limit the scope of the present application, and is not intended to connote any special order or order of precedence.

[0081] The preferred embodiments herein disclosed are not intended to limit or restrict the scope of the application, but merely convey the best mode contemplated by the inventors of carrying out the claimed application. Any modifications, variations or changes within the spirit and scope of the application as disclosed herein will be considered to fall within the scope of the application.

Claims

1. A stator structure, characterized by, The stator module (10) comprises a plurality of stator modules (10) arranged in a splicing manner, wherein each of the stator modules (10) comprises: a basic winding structure (20) comprising a plurality of first coils (21) arranged in an array manner, the first coils (21) comprising a plurality of first sub-coils (211) arranged in a second direction (b) and a plurality of second sub-coils (212) arranged in a first direction (a), wherein the first direction (a) and the second direction (b) are arranged in a perpendicular manner; a first compensation winding structure (30) arranged on a first side of the basic winding structure (20), the first compensation winding structure (30) comprising a plurality of second coils (31) arranged in an array manner; a second compensation winding structure (40) arranged on a second side of the basic winding structure (20), the second compensation winding structure (40) comprising a plurality of third coils (41) arranged in an array manner, the first side and the second side of the basic winding structure (20) being two sides arranged in a relative manner in the first direction (a); wherein the first compensation winding structure (30) of one of the stator modules (10) arranged in a relative manner in the first direction (a) is arranged in a lap manner with the second compensation winding structure (40) of another of the stator modules (10).

2. The stator structure of claim 1, wherein The cross section of the basic winding structure (20) is a rectangular structure, and the stator module (10) further comprises: a third compensation winding structure (50) arranged on a third side of the basic winding structure (20), the third compensation winding structure (50) comprising a plurality of fourth coils (51) arranged in an array manner; a fourth compensation winding structure (60) arranged on a fourth side of the basic winding structure (20), the fourth compensation winding structure (60) comprising a plurality of fifth coils (61) arranged in an array manner, the third side and the fourth side of the basic winding structure (20) being two sides arranged in a relative manner in the second direction (b); wherein the third compensation winding structure (50) of one of the stator modules (10) arranged in a relative manner in the second direction (b) is arranged in a lap manner with the fourth compensation winding structure (60) of another of the stator modules (10).

3. The stator structure of claim 2, wherein The stator module (10) further comprises: a fifth compensation winding structure (70) arranged at a corner position of the basic winding structure (20) and arranged in a relative manner with the first compensation winding structure (30) and the third compensation winding structure (50), the fifth compensation winding structure (70) comprising a plurality of sixth coils (71) arranged in an array manner; a sixth compensation winding structure (80) arranged at a corner position of the basic winding structure (20) and arranged in a relative manner with the second compensation winding structure (40) and the fourth compensation winding structure (60), the sixth compensation winding structure (80) comprising a plurality of seventh coils (81) arranged in an array manner; The fifth compensation winding structure (70) of one of the four stator modules (10) arranged in a 2*2 array is arranged in overlap with the sixth compensation winding structure (80) of another stator module (10) arranged diagonally.

4. The stator structure according to any one of claims 1 to 3, characterized in that, the basic winding structure (20) and the first compensation winding structure (30) are arranged separately, and the basic winding structure (20) and the first compensation winding structure (30) are electrically connected through a first connecting piece; and / or, the basic winding structure (20) and the second compensation winding structure (40) are arranged separately, and the basic winding structure (20) and the second compensation winding structure (40) are electrically connected through a second connecting piece.

5. The stator structure of any one of claims 1 to 3, wherein, The basic winding structure (20) comprises a first base body, the first coil (21) is arranged on the first base body, the first compensation winding structure (30) comprises a second base body, the second coil (31) is arranged on the second base body, and the second compensation winding structure (40) comprises a third base body, the third coil (41) is arranged on the third base body, wherein the first base body, the second base body and the third base body are an integral structure.

6. The stator structure according to claim 1, characterized in that, the coil phase regularity of the plurality of second coils (31) is continuous with the coil phase regularity of the plurality of first sub-coils (211), and the plurality of second coils (31) form at least one three-phase winding structure; and / or, the coil phase regularity of the plurality of third coils (41) is continuous with the coil phase regularity of the plurality of second sub-coils (212), and the plurality of third coils (41) form at least one three-phase winding structure.

7. The stator structure of any one of claims 1 to 3, wherein, The first compensation winding structure (30) and the second compensation winding structure (40) are arranged in a staggered manner along a third direction (c), wherein the third direction (c) is a height direction of the stator structure; The thickness t1 of the basic winding structure (20), the thickness t2 of the first compensation winding structure (30) and the thickness t3 of the second compensation winding structure (40) satisfy: t1≥t2+t3; or, The thickness t1 of the basic winding structure (20), the thickness t2 of the first compensation winding structure (30) and the thickness t3 of the second compensation winding structure (40) satisfy: t2=t3=0.5t1.

8. The stator structure of any one of claims 1 to 3, wherein, The first compensation winding structure (30) is provided with a first magnetic sensing structure, and the second compensation winding structure (40) is provided with a second magnetic sensing structure; the first magnetic sensing structure comprises at least three first magnetic sensors arranged along the first direction (a); and / or, the second magnetic sensing structure comprises at least three second magnetic sensors arranged along the first direction (a).

9. The stator structure of any one of claims 1 to 3, wherein, The width of the first compensation winding structure (30) and the width of the second compensation winding structure (40) are the same, and the coincidence rate of the first compensation winding structure (30) of one of the two stator modules (10) and the second compensation winding structure (40) of the other stator module (10) in the first direction (a) is ≥80%.

10. The stator structure of any one of claims 1-3, wherein, The plurality of second coils (31) of the first compensation winding structure (30) are arranged in layers to form a plurality of first coil layers, and the second coils (31) in all the first coil layers extend in the same direction; the plurality of third coils (41) of the second compensation winding structure (40) are arranged in layers to form a plurality of second coil layers, and the third coils (41) in all the second coil layers extend in the same direction, wherein the extension direction of the second coils (31) is arranged at an angle with the extension direction of the third coils (41); or, The plurality of second coils (31) of the first compensation winding structure (30) are arranged in layers to form a third coil layer and a fourth coil layer, and the extension direction of the second coils (31) in the third coil layer is arranged at an angle with the extension direction of the second coils (31) in the fourth coil layer.

11. An electric machine structure, characterized by Comprise: A mover structure comprising a magnet array; The stator structure of any one of claims 1-10, the magnet array is used to magnetically couple with at least one of the basic winding structure (20), the first compensation winding structure (30), the second compensation winding structure (40).

12. The motor structure of claim 11, wherein, The magnet array comprises a first magnetic group (91) and a second magnetic group (92), the first magnetic group (91) comprises a plurality of first magnets (911) arranged in columns, and the second magnetic group (92) comprises a plurality of second magnets (921) arranged in columns, wherein the arrangement direction of the first magnetic group (91) is arranged at an angle with the arrangement direction of the second magnetic group (92).

13. The motor structure of claim 12, wherein, The first magnetic group (91) further comprises a plurality of third magnets (912), a plurality of the first magnets (911) are located in the middle of the first magnetic group (91), and the third magnets (912) are arranged at both ends of the plurality of first magnets (911), respectively, and the width of the first magnet (911) is greater than the width of the third magnet (912); and / or, The second magnetic group (92) further comprises a plurality of fourth magnets (922), a plurality of the second magnets (921) are located in the middle of the second magnetic group (92), and the fourth magnets (922) are arranged at both ends of the plurality of second magnets (921), respectively, and the width of the second magnet (921) is greater than the width of the fourth magnet (922).

14. The motor structure of claim 12, wherein, The first magnetic group (91) further comprises a plurality of fifth magnets and a plurality of sixth magnets, both ends of the plurality of first magnets (911) are provided with the fifth magnets and the sixth magnets, the fifth magnets are located between the first magnets (911) and the sixth magnets, wherein the width of the first magnet (911) is greater than the width of the fifth magnet, and the width of the fifth magnet is greater than the width of the sixth magnet.

Images