阅读说明：本技术 定子骨架组件、定子组件、电机 (Stator skeleton subassembly, stator module, motor ) 是由 陈炎鑫 周思 刘丽刚 蒙凯 赵坤所 孟琦璋 于 2021-08-04 设计创作，主要内容包括：本发明提供一种定子骨架组件、定子组件、电机,其中的定子骨架组件,包括第一骨架子体及第二骨架子体,所述第一骨架子体与所述第二骨架子体的结构相同,所述第一骨架子体与所述第二骨架子体彼此相向地包裹于定子铁芯上。根据本发明,采用结构完全相同的所述第一骨架子体与第二骨架子体相向配合形成定子骨架组件对所述定子铁芯形成包裹,提高物料的通用性,无需如现有技术中那样在组装时区分上骨架与下骨架的骨架类型,能够提升组装效率、省时省力的同时,仅需要开一套生产骨架子体的模具,节省开发费用。(The invention provides a stator framework assembly, a stator assembly and a motor, wherein the stator framework assembly comprises a first framework sub-body and a second framework sub-body, the first framework sub-body and the second framework sub-body are identical in structure, and the first framework sub-body and the second framework sub-body are wrapped on a stator iron core in an opposite mode. According to the stator core, the stator framework assembly is formed by oppositely matching the first framework daughter and the second framework daughter which are identical in structure, so that the stator core is wrapped, the universality of materials is improved, the framework types of the framework and the lower framework are not required to be divided during assembly as in the prior art, the assembly efficiency can be improved, time and labor are saved, and meanwhile, only one set of mold for producing the framework daughter is required to be opened, and the development cost is saved.)

1. The utility model provides a stator skeleton subassembly, its characterized in that includes first skeleton daughter (10) and second skeleton daughter (20), first skeleton daughter (10) with the structure of second skeleton daughter (20) is the same, first skeleton daughter (10) with second skeleton daughter (20) wraps up on stator core (30) in opposite directions each other.

2. A stator bobbin assembly according to claim 1, wherein a side of the first bobbin body (10) facing away from the second bobbin body (20) is for connecting a power supply line (71) of a three-phase coil of a stator winding (60), and a side of the second bobbin body (20) facing away from the first bobbin body (10) is for connecting a common line (72) of a three-phase coil of the stator winding (60).

3. The stator frame assembly according to claim 1, characterized in that the first frame sub-body (10) and the second frame sub-body (20) each comprise a frame connection portion (11) capable of covering an end of the stator core (30) and a plurality of slot wall wrapping portions (12) engaged with stator slot walls of the stator core (30), the stacking height of the stator core (30) is H, the height of the groove wall wrapping part (12) extending along the axial direction of the stator core (30) is H, H is more than H/2, the groove wall wrapping part (12) is provided with a first wrapping wall (121) and a second wrapping wall (122) which are oppositely arranged, the free ends of the first wrapping wall (121) and the second wrapping wall (122) are constructed with splicing structures, through the inserting structure the first framework daughter (10) and the second framework daughter (20) are connected into a whole.

4. The stator frame assembly according to claim 3, wherein the insertion structure comprises a first groove (1211) formed on the first wrapping wall (121) and a second groove (1221) formed on the second wrapping wall (122), wherein the first groove (1211) is formed on an outer side wall surface of the first wrapping wall (121), the second groove (1221) is formed on an inner side wall surface of the second wrapping wall (122), and the first groove (1211) and the second groove (1221) have the same shape and size.

5. The stator frame assembly according to claim 3, wherein the frame connecting portion (11) is provided with three wiring structures (40), and the three wiring structures (40) are uniformly spaced along the circumferential direction of the stator core (30).

6. The stator frame assembly according to claim 5, characterized in that the wiring structure (40) comprises a slot (41) fixedly connected with the frame connecting part (11) and a conductive insert (42) inserted in the slot (41).

7. The stator frame assembly according to claim 6, wherein the conductive tab (42) comprises a first wire connection portion (421), a second wire connection portion (422), and a third wire connection portion (423), wherein the first wire connection portion (421) and the third wire connection portion (423) are respectively located at both sides of the second wire connection portion (422); and/or the conductive insert sheet (42) is connected in the slot (41) in a snap-fit mode.

8. The stator frame assembly according to claim 7, characterized in that the first wiring portion (421) comprises a first wiring groove (4211), the opposite groove wall of the first wiring groove (4211) has a cutting edge, and/or the second wiring portion (422) comprises a second wiring groove (4221), the opposite groove wall of the second wiring groove (4221) has a cutting edge, and/or the third wiring portion (423) comprises a third wiring groove (4231), the opposite groove wall of the third wiring groove (4231) has a cutting edge capable of cutting a cable insulation layer embedded therein during the embedding process.

9. The stator frame assembly according to claim 8, wherein the first wire connection slot (4211) has at least two, at least two of the first wire connection slots (4211) being arranged in parallel; and/or the second wiring groove (4221) has at least two, at least two of the second wiring grooves (4221) are arranged in parallel; and/or the third wire connection groove (4231) has two, at least two of the third wire connection grooves (4231) are arranged in parallel.

10. The stator frame assembly of claim 8, wherein the cutting edge is a double layer cutting edge.

11. The stator bobbin assembly according to any one of claims 3 to 10, wherein the bobbin connecting portion (11) is provided with a temperature sensing component mounting structure (51) for mounting a temperature sensing component (101), the temperature sensing component mounting structure (51) having a first opening facing a side of the stator winding (60); and/or a temperature control component mounting structure (52) is arranged on the framework connecting part (11) and used for mounting a temperature control component (102), and the temperature control component mounting structure (52) is provided with a second opening facing one side of the stator winding (60).

12. The stator frame assembly according to claim 11, wherein the frame connecting portion (11) is further provided with a mounting post (53) for fixedly connecting a fixing limiting plate (54), and the fixing limiting plate (54) can position the temperature sensing component (101) in the temperature sensing component mounting structure (51) and the temperature control component (102) in the temperature control component mounting structure (52); and/or the temperature sensing component mounting structures (51) are provided with three groups, the three groups of temperature sensing component mounting structures (51) are respectively in one-to-one correspondence with the three-phase arrangement of the stator windings (60), and/or the temperature control component mounting structures (52) are provided with three groups, and the three groups of temperature control component mounting structures (52) are respectively in one-to-one correspondence with the three-phase arrangement of the stator windings (60).

13. The stator frame assembly according to claim 12, wherein the fixing position-limiting plate (54) is provided with a position-limiting boss (541) corresponding to the temperature-control component mounting structure (52), and the position-limiting boss (541) can extend into the temperature-control component mounting structure (52) to axially limit the temperature-control component (102) in the temperature-control component mounting structure (52).

14. The stator frame assembly of claim 12, wherein the fixing retainer plate (54) has a power line fixing structure (542) for fixing a power line (71) corresponding to the stator winding (60).

15. The stator frame assembly of claim 14, wherein the power cord securing structure (542) is adapted to fit one of three wiring structures (40) when the frame connecting portion (11) is provided with the wiring structure (40).

16. A stator frame assembly according to claim 3, characterized in that the frame connection (11) comprises an inner ring (111) cooperating with the yoke part of the stator core (30), the edge of the inner ring (111) being configured with a first marking structure (112) and the edge of the yoke part of the stator core (30) being configured with a second marking structure (31).

17. The stator frame assembly of claim 16, wherein the first mark structure (112) is a first arc groove, the second mark structure (31) is a second arc groove, the second arc groove runs through the axial ends of the stator core (30) along the axial direction thereof, and when the first frame sub-body (10) and the second frame sub-body (20) are assembled with the stator core (30) as a whole, the first frame sub-body (10) has the center of the first arc groove, the second arc groove, and the second frame sub-body (20) has the center of the first arc groove on the same straight line parallel to the axial direction of the stator core (30).

18. A stator assembly comprising the stator frame assembly of any of claims 1 to 17.

19. An electrical machine comprising the stator assembly of claim 18.

Technical Field

The invention belongs to the technical field of motor manufacturing, and particularly relates to a stator framework assembly, a stator assembly and a motor.

Background

The mode that skeleton and lower skeleton combination formed is adopted to present stator skeleton mostly, and this kind of mode need be respectively to last skeleton and lower skeleton two sets of moulds of opening, and the die sinking expense is high, and need distinguish skeleton and lower skeleton when installing stator skeleton to stator core, corresponds the installation, and staff's operation is inconvenient, and is consuming time longer.

Disclosure of Invention

Therefore, the invention provides a stator framework assembly, a stator assembly and a motor, which can overcome the defects that the cost is high due to the fact that the upper framework structure and the lower framework structure are different and the upper framework structure and the lower framework structure need to be distinguished in the related art, and the time and labor are wasted.

In order to solve the above problems, the present invention provides a stator frame assembly, which includes a first frame sub-body and a second frame sub-body, wherein the first frame sub-body and the second frame sub-body have the same structure, and the first frame sub-body and the second frame sub-body are wrapped on a stator core in an opposite direction.

Preferably, a side of the first bobbin sub-body facing away from the second bobbin sub-body is used for connecting a power supply line of a three-phase coil of a stator winding, and a side of the second bobbin sub-body facing away from the first bobbin sub-body is used for connecting a common line of the three-phase coil of the stator winding.

Preferably, first skeleton daughter and second skeleton daughter all including can cover the skeleton connecting portion of stator core's tip and a plurality of with stator core's stator slot cell wall complex cell wall parcel portion, stator core's stack height is H, cell wall parcel portion along stator core's axial extension highly be H, H > H/2, cell wall parcel portion has relative first parcel wall, the second parcel wall that sets up, first parcel wall the free end structure of second parcel wall has the structure of piecing together, through piece together the structure first skeleton daughter with the second skeleton daughter is connected as an organic wholely.

Preferably, the splicing structure comprises a first groove configured on the first wrapping wall and a second groove configured on the second wrapping wall, wherein the first groove is configured on the outer side wall surface of the first wrapping wall, the second groove is configured on the inner side wall surface of the second wrapping wall, and the first groove and the second groove have the same shape and size.

Preferably, be provided with wiring structure on the skeleton connecting portion, wiring structure has threely, three wiring structure follows stator core's circumference is evenly spaced and is set up.

Preferably, the wiring structure comprises a slot fixedly connected with the framework connecting part and a conductive insertion sheet inserted in the slot.

Preferably, the conductive insert comprises a first wiring portion, a second wiring portion and a third wiring portion, wherein the first wiring portion and the third wiring portion are respectively located at two sides of the second wiring portion; and/or the conductive insertion sheet is connected in the slot in a buckling mode.

Preferably, the first wiring portion includes a first wiring groove, the relative cell wall of first wiring groove has the blade, and/or, the second wiring portion includes a second wiring groove, the relative cell wall of second wiring groove has the blade, and/or, the third wiring portion includes a third wiring groove, the relative cell wall of third wiring groove has the blade, the blade can cut the cable insulating layer that inlays dress in it inlaying the dress in-process.

Preferably, the first wire connection slot has at least two, at least two of the first wire connection slots being arranged in parallel; and/or the second wiring grooves are provided with at least two, and at least two second wiring grooves are arranged in parallel; and/or the third wiring groove is provided with two, and at least two third wiring grooves are arranged in parallel.

Preferably, the cutting edge is a double-layer cutting edge.

Preferably, a temperature sensing component mounting structure is arranged on the framework connecting part and used for mounting a temperature sensing component, and the temperature sensing component mounting structure is provided with a first opening facing one side of the stator winding; and/or, be provided with temperature control components and parts mounting structure on the skeleton connecting portion for install temperature control components and parts, temperature control components and parts mounting structure has the second opening towards in stator winding one side.

Preferably, the framework connecting part is further provided with a mounting column for fixedly connecting and fixing a limiting plate, and the fixing limiting plate can position a temperature sensing component in the temperature sensing component mounting structure and a temperature control component in the temperature control component mounting structure; and/or the temperature sensing component mounting structures are provided with three groups, the three groups of temperature sensing component mounting structures are respectively in one-to-one correspondence with the three-phase setting of the stator winding, and/or the temperature sensing component mounting structures are provided with three groups, and the three groups of temperature sensing component mounting structures are respectively in one-to-one correspondence with the three-phase setting of the stator winding.

Preferably, the fixed limiting plate is provided with a limiting boss at a position corresponding to the temperature control component mounting structure, and the limiting boss can extend into the temperature control component mounting structure to axially limit the temperature control components in the temperature control component mounting structure.

Preferably, the fixing limit plate has a power line fixing structure for fixing the power line of the stator winding.

Preferably, when a wiring structure is arranged on the framework connecting part, the power line fixing structure is adapted to one of the three wiring structures.

Preferably, the bobbin connecting part includes an inner ring fitted to the yoke part of the stator core, an edge of the inner ring is configured with a first mark structure, and an edge of the yoke part of the stator core is configured with a second mark structure.

Preferably, first mark structure is first circular arc groove, second mark structure is second circular arc groove, second circular arc groove is followed stator core's axial link up its axial both ends, works as first skeleton daughter and second skeleton daughter with when stator core equipment is as an organic whole, first skeleton daughter has the centre of a circle of first circular arc groove the second skeleton daughter has the centre of a circle of first circular arc groove be in same with on stator core's the axially parallel's of axial straight line.

The invention also provides a stator assembly which comprises the stator framework assembly.

The invention provides a motor which comprises the stator assembly.

According to the stator framework assembly, the stator assembly and the motor, the stator framework assembly is formed by oppositely matching the first framework sub-body and the second framework sub-body which are completely the same in structure, so that the stator core is wrapped, the universality of materials is improved, the framework types of the framework and the lower framework are not required to be divided in the assembling process as in the prior art, the assembling efficiency can be improved, the time and the labor are saved, and meanwhile, only one set of mold for producing the framework sub-bodies is required to be opened, so that the development cost is saved.

Drawings

Fig. 1 is a schematic perspective view of a stator frame assembly (including mating components, such as stator windings, etc.) according to an embodiment of the present invention;

FIG. 2 is a schematic view of the opposing mounting structure of the first and second skeletal sub-bodies of FIG. 1;

FIG. 3 is a top view of the first skeletal subvolume of FIG. 2;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a schematic perspective view of a conductive insert according to an embodiment of the present invention;

FIG. 6 is a partially disassembled schematic view of the stator frame assembly of FIG. 1;

FIG. 7 is an enlarged view of a portion of FIG. 6 at B;

FIG. 8 is an enlarged view of a portion of FIG. 6 at C;

FIG. 9 is a schematic view of the winding sequence and wiring of the stator windings in an embodiment of the present invention;

fig. 10 is a schematic wiring diagram of the U-phase stator coil of fig. 9 on the lead-out wire power supply line side;

fig. 11 is a schematic wiring diagram of the lead-out wire power supply line side of the three-phase stator coil of fig. 9;

fig. 12 is a schematic wiring diagram on the common line side of the lead-out lines of the three-phase stator coil in fig. 9.

The reference numerals are represented as:

10. a first scaffold daughter; 11. a framework connecting part; 111. an inner ring; 112. a first marker structure; 113. an inboard baffle; 114. an outer baffle; 12. a slot wall wrapping part; 121. a first wrap wall; 1211. a first groove; 122. a second wrap wall; 1221. a second groove; 20. a second scaffold daughter; 30. a stator core; 31. a second marker structure; 40. a wiring structure; 41. a slot; 42. a conductive insert; 421. a first wiring portion; 4211. a first wiring groove; 422. a second wiring portion; 4221. a second wiring groove; 423. a third wiring portion; 4231. a third wiring groove; 424. a triangular barb; 51. a temperature sensing component mounting structure; 52. a temperature control component mounting structure; 53. mounting a column; 54. fixing a limit plate; 541. a limiting boss; 542. a power line fixing structure; 60. a stator winding; 71. a power line; 711. a U-phase power line; 712. a V-phase power line; 713. a W-phase power supply line; 72. a common line; 101. a temperature sensing component; 102. and a temperature control element.

Detailed Description

Referring to fig. 1 to 12 in combination, according to an embodiment of the present invention, a stator bobbin assembly is provided, which includes a first bobbin sub-body 10 and a second bobbin sub-body 20, the first bobbin sub-body 10 and the second bobbin sub-body 20 have the same structure, and the first bobbin sub-body 10 and the second bobbin sub-body 20 are wrapped on a stator core 30 in an opposite manner. In this technical scheme, adopt the structure identical first skeleton daughter 10 forms the stator skeleton subassembly with the cooperation of second skeleton daughter 20 in opposite directions right stator core 30 forms the parcel, improves the commonality of material, need not to divide the skeleton type of skeleton and lower skeleton in the equipment time like among the prior art, can promote packaging efficiency, labour saving and time saving in, only need open the mould of one set of production skeleton daughter, saves the development cost.

In some embodiments, a side of the first bobbin sub-body 10 facing away from the second bobbin sub-body 20 is used to connect a power line 71 of a three-phase coil of a stator winding 60 (specifically, for example, a concentrated winding), and a side of the second bobbin sub-body 20 facing away from the first bobbin sub-body 10 is used to connect a common line 72 of the three-phase coil of the stator winding 60, so that the power line 71 and the common line 72 of the stator winding 60 are respectively connected to two axial ends of the stator core 30, thereby reducing the number of windings on the same side, facilitating the order of winding and cable arrangement, and further facilitating straight pipe distinguishing between different winding enameled wires and power lines. It should be noted that, the most current stator wiring connects in the same side of skeleton, and winding enameled wire in addition power cord has very many lines, and the confusion is complicated between line and line, and staff's operation is not good when the wiring judges which winding enameled wire is which looks, connects the wrong line easily, and need welding, reason line rewiring during the wiring, and the step is very complicated, can't realize automated production.

In some embodiments, the first bobbin sub-body 10 and the second bobbin sub-body 20 each include a bobbin connecting portion 11 capable of covering an end of the stator core 30 and a plurality of slot wall wrapping portions 12 engaged with stator slot walls of the stator core 30, the stack height of the stator core 30 is H, the height of the slot wall wrapping part 12 extending along the axial direction of the stator core 30 is H, H is more than H/2, so that there is a possibility that two bobbin sub-bodies fitted to each other are overlapped in the axial direction of the stator core 30, the groove wall wrapping part 12 has a first wrapping wall 121 and a second wrapping wall 122 which are oppositely arranged, the free ends of the first wrapping wall 121 and the second wrapping wall 122 are configured with a splicing structure, through the inserting structure the first framework daughter 10 and the second framework daughter 20 are connected into a whole. In this technical scheme, through the piece inserting structure will first skeleton daughter 10 is connected as an organic wholely with second skeleton daughter 20, can guarantee first skeleton daughter 10 and second skeleton daughter 20 wrap up more reliably in on the stator core 30.

Referring to fig. 2 in combination, the inserting structure includes a first groove 1211 configured on the first wrapping wall 121 and a second groove 1221 configured on the second wrapping wall 122, wherein the first groove 1211 is configured on an outer side wall surface of the first wrapping wall 121, the second groove 1221 is configured on an inner side wall surface of the second wrapping wall 122, the first groove 1211 and the second groove 1221 have the same shape and size, and the first groove 1211 and the second groove 1221 are obtained by thinning a wall thickness of the first wrapping wall 121 and the second wrapping wall 122, respectively, and it can be understood that the purpose of the inserting structure is to ensure that the first wrapping wall 121 in the first skeleton sub-body 10 assembled in an opposite direction can form an inserting and tight fit with the second wrapping wall 122 in the second skeleton sub-body 20, and similarly, the first wrapping wall 121 in the second skeleton sub-body 20 can form an inserting and tight fit with the second wrapping wall 122 in the first skeleton sub-body 10 The first framework sub-body 10 and the second framework sub-body 20 are spliced and inserted oppositely and are tightly matched, so that the wall thickness of the assembled first framework sub-body 10 and the assembled second framework sub-body 20 (after the first groove 1211 and the second groove 1221 are spliced and inserted and matched) is consistent with the wall thickness of the non-thinned position, the winding surface of the assembled stator framework assembly is smooth, and the winding process is not unfavorable.

In some embodiments, the framework connection portion 11 is provided with three wiring structures 40, the three wiring structures 40 are uniformly arranged along the circumferential direction of the stator core 30 at intervals, so that the wiring structures 40 can correspond to three-phase coils (U-phase, V-phase and W-phase) of the stator winding 60, coil outgoing lines can be connected nearby, and the cable arrangement is more regular and orderly.

Wiring structure 40 include with skeleton connecting portion 11 fixed connection's slot 41 and cartridge in electrically conductive inserted sheet 42 in the slot 41, slot 41 specifically for example with the integrative injection moulding's of skeleton connecting portion 11 structure, and electrically conductive inserted sheet 42 can adopt conducting material to make alone. (ii) a As a specific implementation manner, conductive insertion sheet 42 snap-fit connection in slot 41 to can change alone when conductive insertion sheet 42 has a quality problem, specifically for example, be provided with triangle barb 424 on two relative sides of conductive insertion sheet 42 respectively, it is corresponding, corresponding catching groove has on the slot 41, conductive insertion sheet 42 passes through triangle barb 424 with catching groove snap-fit connection guarantees the reliability of wiring, effectively prevents conductive insertion sheet 42 follows drop in the slot 41.

Referring to fig. 5 in combination, the conductive insert 42 includes a first wiring portion 421, a second wiring portion 422, and a third wiring portion 423, wherein the first wiring portion 421 and the third wiring portion 423 are respectively disposed at two sides of the second wiring portion 422, and the first wiring portion 421, the second wiring portion 422, and the third wiring portion 423 are respectively used for connecting with a coil outgoing line and a power line. First wiring portion 421 includes first wiring groove 4211, the relative cell wall of first wiring groove 4211 has the blade, and/or, second wiring portion 422 includes second wiring groove 4221, the relative cell wall of second wiring groove 4221 has the blade, and/or, third wiring portion 423 includes third wiring groove 4231, the relative cell wall of third wiring groove 4231 has the blade, the blade can cut open winding enameled wire and power cord surface coat when the assembly with inlaying the cable insulating layer of adorning in it inlaying the dress in-process, can cut open winding enameled wire and power cord surface coat, can realize the effect that winding enameled wire and power cord electric current switched on, has replaced original polishing and soldering tin technology, when laborsaving in trouble-saving, can also avoid the rosin joint or the potential risk of striking sparks that adopt the mode of soldering tin connection to exist among the prior art.

In some embodiments, the first wire groove 4211 has at least two, at least two of the first wire grooves 4211 being arranged in parallel; and/or, the second wire connection slot 4221 has at least two, at least two of the second wire connection slots 4221 are arranged in parallel; and/or, the third wiring groove 4231 has two, at least two the third wiring groove 4231 parallel arrangement, will form the wrapping post arch between two adjacent parallel arrangement slotted holes, makes corresponding cable can form the winding, can further guarantee the connection reliability of wiring and the smoothness nature of electricity intercommunication. Preferably, the blade is double-deck blade, can cut once more to the different positions of cable and form the electricity intercommunication, guarantees the reliability of electricity connection.

In the related art, the temperature sensing component is directly placed in the gap between the windings of different slots, and this mounting manner cannot ensure that the temperature sensing component is tightly attached to the windings, the winding temperature cannot be effectively measured, and the reliability of temperature sensing data is not high, based on this deficiency of the related art, in some embodiments, the skeleton connecting portion 11 is provided with a temperature sensing component mounting structure 51 for mounting the temperature sensing component 101, and the temperature sensing component mounting structure 51 has a first opening facing one side of the stator winding 60; and/or a temperature control component mounting structure 52 is arranged on the framework connecting part 11 and used for mounting the temperature control component 102, and the temperature control component mounting structure 52 is provided with a second opening facing one side of the stator winding 60. The temperature sensing component 101 and the temperature control component 102 are respectively in contact (close contact) with the corresponding stator windings 60 through the first opening and the second opening, so that the reliability of temperature sensing data and temperature control is effectively improved.

Still be equipped with erection column 53 on skeleton connecting portion 11 for fixed connection fixes limiting plate 54, fixed limiting plate 54 can be right temperature sensing components and parts 101 (specifically for example the temperature sensing package) in the temperature sensing components and parts mounting structure 51, temperature control components and parts 102 (specifically for example the thermal protector) in the temperature control components and parts mounting structure 52 form the location (specifically for example the axial is spacing), effectively prevent dropping of temperature sensing components and parts 101 or temperature control components and parts 102, can understand, be constructed on the fixed limiting plate 54 with the mounting hole that erection column 53 matches, the mounting hole with interference fit connects between the erection column 53, and need not to increase locking piece (for example the nut). The temperature-sensing component mounting structures 51 have three groups, the three groups of temperature-sensing component mounting structures 51 respectively correspond to the three-phase arrangement of the stator windings 60 one by one, the temperature-control component mounting structures 52 have three groups, and the three groups of temperature-control component mounting structures 52 respectively correspond to the three-phase arrangement of the stator windings 60 one by one.

In some embodiments, the position of the fixing position-limiting plate 54 corresponding to the temperature-controlled component mounting structure 52 is provided with a position-limiting boss 541, and the position-limiting boss 541 can extend into the temperature-controlled component mounting structure 52 to form an axial position limitation on the temperature-controlled component 102 in the temperature-controlled component mounting structure 52. It is understood that the fixing stopper plate 54 is further configured with a wire hole corresponding to the power wires of the temperature sensing component 101 and the temperature control component 102.

The fixing and limiting plate 54 has a power line fixing structure 542 for fixing the power line 71 of the stator winding 60, specifically, the power line fixing structure 542 is a T-shaped inserting groove, and the U-phase power line 711, the V-phase power line 712, and the W-phase power line 713 are respectively inserted into three grooves of the T-shaped inserting groove, so that the power lines are more orderly arranged. When the wiring structure 40 is arranged on the framework connecting part 11, the power line fixing structure 542 is adapted to one of the three wiring structures 40, so that the wiring route is more reasonable and orderly.

Referring to fig. 3 and 4 in combination, in some embodiments, the bobbin coupling part 11 includes an inner ring 111 coupled to a yoke part of the stator core 30, the edge of the inner ring 111 is configured with a first marker structure 112, the edge of the yoke portion of the stator core 30 is configured with a second marker structure 31, when the first and second bobbin sub-bodies 10 and 20 are assembled with the stator core 30, the first marking structure 112 of the first framework sub-body 10 and the first marking structure 112 of the second framework sub-body 20 are aligned with the second marking structure 31, so that the alignment of the two framework sub-bodies at the two axial ends of the stator core 30 is realized, the alignment at this position enables the wiring structures 40 respectively arranged on the framework sub-bodies to correspond in the axial direction, thereby facilitating subsequent winding, wiring and wiring.

In some embodiments, first mark structure 112 is first circular arc groove, second mark structure 31 is second circular arc groove, second circular arc groove is followed stator core 30's axial link up its axial both ends, works as first skeleton daughter 10 and second skeleton daughter 20 with when stator core 30 equipment is as an organic whole, first skeleton daughter 10 has the centre of a circle of first circular arc groove second skeleton daughter 20 has the centre of a circle of first circular arc groove be in same with stator core 30's axially parallel's straight line.

Referring to fig. 9, as an example of a 12-slot stator core of an external rotor stator, the stator winding 60 is wound on an assembled stator frame according to a winding schematic diagram according to a winding sequence and a wiring schematic diagram. When looking down from the upper part of the stator, the stator winding 60 right above the figure is defined as 4-1U head, the stator winding 60 is marked as 4-2U tail, 4-3V head, 4-4V tail, 4-5W head, 4-6W tail, 4-7U head, 4-8U tail, 4-9V head, 4-10V tail, 4-11W head and 4-12W tail in turn clockwise, wherein, after the 4-1U head and the 4-7U head are connected, a U-phase power line 711 is led out, after the 4-3V head and the 4-9V head are connected, a V-phase power line 712 is led out, and after the 4-5W head and the 4-11W head are connected, a W-phase power line 713 is led out, and finally all tail winding enamelled wires U tail, V tail and W tail are connected and conducted. In order to separately connect the head winding enameled wire and the tail winding enameled wire, the head winding enameled wire is required to be completely led out from the upper side (the orientation shown in fig. 1) of the first bobbin sub-body 10, and the tail winding enameled wire is required to be completely led out from the lower side (the orientation shown in fig. 1) of the second bobbin sub-body 20 during winding.

As shown in fig. 10, the U-phase head winding enameled wire 4-1U head, the 4-7U head and the U-phase power supply wire 6-1U are connected in plan view from above the stator. Firstly, the conductive insertion sheet 42 is arranged in the slot 41 of the first framework daughter 10 adjacent to the 4-1U head, the winding enameled wire 4-1U head is arranged in the two third wiring grooves 4213 (right U-shaped grooves) of the conductive insertion sheet 42, the winding enameled wire 4-7U head crosses over a half stator and is arranged in the two first wiring grooves 4211 (left U-shaped grooves) of the conductive insertion sheet 42, and the winding enameled wire 4-7U head can properly bypass the inner side baffle 113 (the inner side baffle and the outer side baffle 114 can jointly limit the coil winding path of the stator winding 60) in the crossing process to realize reasonable wiring; finally, the U-phase power line 711 is assembled in two second wiring grooves 4212 (middle U-shaped grooves) of the conductive insertion sheet 42, so that connection and conduction of the U-phase head winding enameled wire 4-1U head, the U-phase head 4-7U head and the U-phase power line 711 are realized.

As shown in fig. 11, the V-phase and W-phase head winding enameled wires and the power supply line are connected in the same manner. Firstly, installing the conductive insert 42 in the slot 41 of the first framework sub-body 10 adjacent to the head 4-5W and the head 4-9V; the winding enameled wire with the V-phase head is connected with a 4-3V head, a 4-9V head and a V-phase power line 712, the 4-9V head of the winding enameled wire is connected with a conductive insertion sheet 42 positioned at the 4-9V head nearby, the 4-3V head of the winding enameled wire spans over a half stator and is connected with the conductive insertion sheet 42 positioned at the 4-9V head, and the V-phase power line 712 is led out from the position of the 4-1U head after being connected with the conductive insertion sheet 42 adjacent to the 4-9V head; the winding enameled wire with the W-phase head is connected with the 4-5W head, the 4-11W head and the W-phase power wire 713, the 4-5W head of the winding enameled wire is connected with the conductive insertion sheet 42 adjacent to the 4-5W head nearby, the 4-11W head of the winding enameled wire spans over a half stator and is connected with the conductive insertion sheet 42 positioned at the 4-5W head, and the W-phase power wire 713 is led out from the 4-1U head after being connected with the conductive insertion sheet 42 adjacent to the 4-5W head. And the first framework daughter 10 winding enameled wire is connected with a power line.

As shown in fig. 12, all tail winding enameled wires are connected from the bottom of the stator. Installing conductive inserts 42 in the slots 41 of the second skeleton sub-body 20 adjacent to the 4-1U head, the 4-5W head and the 4-9V head; all tail winding enameled wires are connected with the conductive insertion sheet 42 nearby as shown in fig. 12, and finally, a common wire 72 is assembled in two second wiring grooves 4221 (middle 'U' -shaped grooves) of the three conductive insertion sheets 42, so that connection and conduction of all tail winding enameled wires are realized.

According to an embodiment of the invention, a stator assembly is also provided, which comprises the stator skeleton assembly.

According to an embodiment of the invention, an electric machine comprises the stator assembly described above.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.