An insulating skeleton structure, a stator and an electric motor

Abstract

The present invention discloses an insulating skeleton structure, a stator and a motor, relating to the technical field of motors, and solves the problem in the prior art that the enameled wire lacks a protection structure and is easily damaged during assembly. The insulating skeleton structure of the present invention is used to cover the surface of the iron core and includes an inner baffle, an outer baffle and a connecting portion. Among them, the inner baffle is located on the upper and lower surfaces of the inner circle of the iron core, the outer baffle is located on the upper and lower surfaces of the yoke portion of the iron core, and the connecting portion is located between the inner baffle and the outer baffle. The insulating skeleton structure of the present invention is made of an insulating material and covers the surface of the iron core. It has a certain thickness, can effectively separate the iron core from the winding, and increase the electrical safety distance between the iron core and the winding. On the other hand, through the action of the inner baffle and the outer baffle, the insulating skeleton structure can not only protect the enameled wire and avoid damaging the enameled wire when manufacturing the stator, but also effectively prevent the enameled wire from collapsing.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular, to an insulating skeleton structure, a stator, and a motor. Background Art

[0002] The straight-bar stator core of a traditional AC motor is insulated by injection molding a skeleton around the core. However, this skeleton has a simple structure and insufficient reliability. The enameled wire is exposed through the slot opening, and flash is likely to occur during the plastic coating process at the connection of two teeth. The applicant has found that the traditional skeleton has at least the following defects: the enameled wire has no protection structure and is easily damaged during assembly; the safety performance of the traditional skeleton is also difficult to meet the growing market demand, and the safety distance between the enameled wire and the core is likely to be insufficient, seriously affecting the product quality; the traditional skeleton has a single function and cannot meet the process requirements of different motors, such as being unable to install a circuit board or position a power cord, a protector, etc. Summary of the Invention

[0003] One object of the present invention is to provide an insulating skeleton structure, a stator, and a motor, which solve the technical problem that the enameled wire in the prior art lacks a protection structure and is easily damaged during assembly. The numerous technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] The insulating skeleton structure of the present invention is used to cover the surface of the core and includes an inner baffle, an outer baffle, and a connecting portion. Among them, the inner baffle is located on the upper and lower surfaces of the inner circle of the core, the outer baffle is located on the upper and lower surfaces of the core yoke portion, and the connecting portion is located between the inner baffle and the outer baffle.

[0006] According to a preferred embodiment, the inner diameter of the inner circle of the inner baffle is greater than the inner diameter of the core, and the height of the inner baffle is greater than the height of the core winding.

[0007] According to a preferred embodiment, the ends of the inner baffle and / or the outer baffle are provided in a rounded shape.

[0008] According to a preferred embodiment, a plurality of reinforcing ribs are provided on the inner baffle. The plurality of reinforcing ribs are located outside the inner baffle, and the reinforcing ribs connect the inner baffle and the connecting portion.

[0009] According to a preferred embodiment, the surface of the reinforcing rib away from the inner baffle is provided in an arc-shaped structure that is concave towards the inner baffle.

[0010] According to a preferred embodiment, inner tie-rod grooves and inner tie-rod openings are provided on the inner baffle, wherein the inner tie-rod grooves are grooves located on the inner side of the inner baffle, and the inner tie-rod openings are openings located at the ends of the inner baffle.

[0011] According to a preferred embodiment, an outer tie-rod opening is provided on the outer baffle, and the outer tie-rod opening is an opening located at the end of the outer baffle.

[0012] According to a preferred embodiment, a tie-rod hole is provided on the connecting portion, the tie-rod hole is in an arched structure or a tubular structure, and the tie-rod hole extends from the inner baffle to the outer baffle.

[0013] According to a preferred embodiment, the insulating skeleton structure further includes a relief groove, and the relief groove is located at the splicing portion of the iron core yoke portion, so that a part of the iron core at the splicing portion is exposed outside the insulating skeleton structure through the relief groove.

[0014] According to a preferred embodiment, the insulating skeleton structure further includes a splicing baffle, the splicing baffle is located below the relief groove, and the splicing baffle includes a first convex portion and a second convex portion. Among them, the first convex portion protrudes towards the splicing portion, and there is a gap after adjacent two first convex portions are spliced; the second convex portion protrudes into the groove.

[0015] According to a preferred embodiment, the insulating skeleton structure further includes a notch baffle, the notch baffle is located at the notch position of the iron core tooth portion, and the notch baffle includes a third convex portion protruding into the groove and a fourth convex portion protruding towards the iron core.

[0016] According to a preferred embodiment, the insulating skeleton structure further includes a plurality of positioning columns, and the positioning columns are located on the upper and lower surfaces of the connecting portion.

[0017] According to a preferred embodiment, the cross-section of the positioning column is circular, square or oval, and the height of the positioning column is equivalent to the height of the inner baffle.

[0018] According to a preferred embodiment, a pin hole for fixing a pin is provided on the positioning column, and the pin hole is a structure with a gradually decreasing inner diameter from the upper end to the lower end.

[0019] According to a preferred embodiment, a boss is provided between the positioning column and the outer baffle, so that the enameled wire and the iron core are separated from each other through the boss.

[0020] According to a preferred embodiment, a wire passing groove is formed between the outer baffle, the positioning column and the boss, and the enameled wire passes through the wire passing groove.

[0021] According to a preferred embodiment, the insulating skeleton structure further includes a plurality of fastening posts, and an inverted buckling structure is provided at the top end of the fastening posts. The inverted buckling structure occupies a partial area of the top end of the fastening posts and protrudes laterally from the top end of the fastening posts.

[0022] According to a preferred embodiment, the insulating skeleton structure is a structure integrally formed by injection molding using an insulating material.

[0023] The stator of the present invention includes the insulating skeleton structure according to any technical solution of the present invention.

[0024] The motor of the present invention includes the stator according to any technical solution of the present invention.

[0025] The insulating skeleton structure, stator and motor provided by the present invention at least have the following beneficial technical effects:

[0026] The insulating skeleton structure of the present invention is made of an insulating material and is coated on the surface of the iron core. It has a certain thickness, can effectively separate the iron core from the winding, and increase the electrical safety distance between the iron core and the winding. On the other hand, through the action of the inner baffle and the outer baffle, the insulating skeleton structure can not only protect the enameled wire and avoid damaging the enameled wire when manufacturing the stator, but also effectively prevent the enameled wire from collapsing. That is, the insulating skeleton structure of the present invention solves the problem that the enameled wire has no protection structure when using a traditional skeleton and is easily damaged during assembly.

[0027] In addition, the preferred technical solution of the present invention can also produce the following technical effects:

[0028] On the insulating skeleton structure of the preferred technical solution of the present invention, a splicing joint baffle is provided. The first protrusion of the splicing joint baffle protrudes a certain height towards the splicing joint. After the iron core is formed into a circle, there is a gap between the baffles of the two first protrusions, so that even if a small amount of burrs are generated here during manufacturing, it can be ensured that the circular formation is not affected. The second protrusion of the splicing joint baffle protrudes into the groove at the first protrusion, which can block part of the enameled wire from moving towards the splicing joint and loosening, increase the creepage distance between the enameled wire and the iron core at the splicing joint, and increase the safety performance of the insulating skeleton structure. On the insulating skeleton structure of the preferred technical solution of the present invention, a notch baffle is also provided. The third protrusion of the notch baffle protrudes into the groove, which can block part of the enameled wire from loosening towards the notch; the fourth protrusion of the notch baffle protrudes towards the iron core, which can increase the creepage distance between the enameled wire and the iron core at the notch, and increase the safety performance of the insulating skeleton structure. That is, through the action of the splicing joint baffle and the notch baffle, the preferred technical solution of the insulating skeleton of the present invention can increase the creepage distance between the enameled wire and the iron core at the notch, and solve the problem that the traditional skeleton is prone to insufficient safety distance between the enameled wire and the iron core, affecting the product quality.

[0029] In addition, buckle posts are provided on the insulating skeleton structure. An inverted buckle structure is provided at the top of the buckle post. The inverted buckle structure occupies a part of the top area of the buckle post and protrudes laterally from the top of the buckle post. The end face of the buckle post not occupied by the inverted buckle structure can be used to bear the circuit board, and the protruding part of the inverted buckle structure is used to tightly fasten the circuit board, thereby fixing the circuit board. That is, the preferred technical solution of the present invention can be used to fix the circuit board through the provided buckle posts, solving the problem that the traditional skeleton has a single function and cannot install the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic diagram of a preferred embodiment of the stator of the present invention;

[0032] Figure 2 It is a partial schematic diagram of a preferred embodiment of the upper end of the stator of the present invention;

[0033] Figure 3 It is a partial schematic diagram of a preferred embodiment of the lower end of the stator of the present invention;

[0034] Figure 4 It is a schematic diagram of a preferred embodiment of the reinforcing rib of the present invention;

[0035] Figure 5 It is a partial top view of a preferred embodiment of the stator of the present invention;

[0036] Figure 6 It is a schematic diagram of a preferred embodiment of the relief groove of the present invention;

[0037] Figure 7 It is a schematic diagram of a preferred embodiment of the splicing joint baffle of the present invention;

[0038] Figure 8 It is a first schematic diagram of a preferred embodiment of the slot baffle of the present invention;

[0039] Figure 9 It is a second schematic diagram of a preferred embodiment of the slot baffle of the present invention.

[0040] In the figure: 1-iron core; 10-inner baffle; 20-outer baffle; 30-connecting part; 40-giving groove; 50-joining baffle; 60-notch baffle; 70-positioning column; 80-wire slot; 90-buckle column; 101-reinforcement rib; 102-inner tie groove; 103-inner tie opening; 201-outer tie opening; 301-tie hole; 501-first raised part; 502-second raised part; 601-third raised part; 602-fourth raised part; 701-pin hole; 702-boss; 901-undercut structure. DETAILED DESCRIPTION

[0041] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0042] The following is combined with Figures 1 to 9 The insulating skeleton structure, stator and motor of this embodiment are described in detail.

[0043] The insulating skeleton structure of this embodiment is used to cover the surface of the iron core 1. Preferably, the insulating skeleton structure includes an inner baffle 10, an outer baffle 20 and a connecting portion 30, wherein the inner baffle 10 is located on the upper and lower surfaces of the inner circle of the iron core 1, the outer baffle 20 is located on the upper and lower surfaces of the iron core yoke, and the connecting portion 30 is located between the inner baffle 10 and the outer baffle 20. Figures 1 to 3 Preferably, the iron core 1 of this embodiment is a straight stator iron core.

[0044] The insulating skeleton structure of this embodiment is made of insulating material and coated on the surface of the iron core 1. It has a certain thickness and can effectively separate the iron core 1 from the winding and increase the electrical safety distance between the iron core 1 and the winding. On the other hand, the insulating skeleton structure can not only protect the enameled wire through the inner baffle 10 and the outer baffle 20 to avoid damaging the enameled wire during stator manufacturing, but also effectively prevent the enameled wire from collapsing. That is, the insulating skeleton structure of this embodiment solves the problem that the enameled wire has no protective structure when using the traditional skeleton, and the enameled wire is easily damaged during assembly.

[0045] According to a preferred embodiment, the inner diameter of the inner baffle 10 is greater than the inner diameter of the core 1, and the height of the inner baffle 10 is greater than the height of the winding of the core 1. Preferably, the inner baffle 10 extends perpendicularly to the connection portion 30 to a certain height away from both ends of the core 1, and its height is greater than the height of the winding, so as to prevent the winding enameled wire from collapsing toward the inner circle, protect the winding, and increase the electrical safety distance between the enameled wire and the rotor.

[0046] According to a preferred embodiment, the ends of the inner baffle 10 and / or the outer baffle 20 are provided with rounded corners. Preferably, the ends of both the inner baffle 10 and the outer baffle 20 are provided with rounded corners, as Figures 1 to 3 shown. In the preferred technical solution of this embodiment, the ends of both the inner baffle 10 and the outer baffle 20 are provided with large rounded corners, which can increase the internal clearance of the stator, thereby enhancing the heat dissipation effect inside the stator.

[0047] According to a preferred embodiment, a plurality of reinforcing ribs 101 are provided on the inner baffle 10. The plurality of reinforcing ribs 101 are located outside the inner baffle 10, and the reinforcing ribs 101 connect the inner baffle 10 and the connecting portion 30, as Figure 4 shown. Preferably, the surface of the reinforcing rib 101 away from the inner baffle 10 is provided with an arc-shaped structure concave towards the inner baffle 10, as Figure 4 shown. When winding the enameled wire, as the number of turns of the enameled wire increases, the pressure on the inner baffle 10 becomes greater. At this time, the inner baffle 10 has a risk of deforming inwardly, which will interfere with the assembly of the rotor. In the preferred technical solution of this embodiment, a plurality of reinforcing ribs 101 are provided on the inner baffle 10, and the hardness of the inner baffle 10 can be enhanced through the reinforcing ribs 101, greatly reducing the deformation amount of the inner baffle 10. On the other hand, the surface of the reinforcing rib 101 away from the inner baffle 10 is provided with an arc-shaped structure concave towards the inner baffle 10, which can not only increase the hardness of the inner baffle 10 but also does not affect the slot fill factor, and will not scratch the enameled wire when winding the enameled wire.

[0048] According to a preferred embodiment, an inner cable tie groove 102 and an inner cable tie opening 103 are provided on the inner baffle 10, as Figure 1 or 2 shown. Preferably, the inner cable tie groove 102 is a groove located inside the inner baffle 10; the inner cable tie opening 103 is an opening located at the end of the inner baffle 10, as Figure 1 or 2 shown. More preferably, the depth and width of the inner cable tie groove 102 are not limited and are determined according to the cable tie. The width of the inner cable tie opening 103 is equivalent to the width of the inner cable tie groove 102, and the depth is not limited. In the preferred technical solution of this embodiment, the inner cable tie groove 102 and the inner cable tie opening 103 are provided on the inner baffle 10. When the cable tie is tied here, the protruding height of the cable tie can be effectively reduced, the space margin when inserting the rotor can be increased, and the risk of the rotor rubbing against the cable tie can be reduced.

[0049] According to a preferred embodiment, an outer cable tie opening 201 is provided on the outer baffle 20. The outer cable tie opening 201 is an opening located at the end of the outer baffle 20, as Figures 1 to 3 shown. Similarly, in the preferred technical solution of this embodiment, the outer cable tie opening 201 is provided on the outer baffle 20, which can facilitate the tying of the cable tie.

[0050] According to a preferred embodiment, a cable tie hole 301 is provided on the connecting portion 30, as Figure 1As shown in FIG. 1 or 2. Preferably, the cable tie hole 301 is an arched structure, and the cable tie hole 301 extends from the inner baffle 10 to the outer baffle 20, such as Figure 1 As shown in FIG. 1 or 2. The height and width of the cable tie hole 301 depend on the cable tie used. Preferably, the cable tie hole 301 can also be a tubular structure. That is, there is an insulating layer inside the inner cable tie opening 103 and the outer cable tie opening 201 to separate from the iron core 1. In the preferred technical solution of this embodiment, the cable tie hole 301 is provided on the connecting portion 30. This cable tie hole 301, together with the inner cable tie groove 102, the inner cable tie opening 103 and the outer cable tie opening 201, is used for tying the cable tie, and can fix the remaining components above the winding, such as protectors, power lines, thermocouple wires, etc.

[0051] According to a preferred embodiment, the insulating skeleton structure further includes a relief groove 40, and the relief groove 40 is located at the joint of the iron core yoke portion to expose a part of the iron core at the joint through the relief groove 40, such as Figure 5 As shown in FIG. 5 or 6. Preferably, the shape of the relief groove 40 can be determined according to the shape of the iron core 1. The relief groove 40 in the preferred technical solution of this embodiment is formed in the following way: a certain area is hollowed out along the edge of the iron core 1 to expose a part of the iron core 1 at the joint of the insulating skeleton structure. That is, the edge of the insulating skeleton structure is not flush with the edge of the iron core 1, and the width is smaller than the width of the iron core 1, so that a part of the iron core 1 is exposed, such as Figure 6 As shown. In the preferred technical solution of this embodiment, the relief groove 40 is provided at the joint of the iron core yoke portion, which can effectively prevent glue overflow at the joint surface during injection molding and hinder the iron core 1 from being assembled into a circle.

[0052] According to a preferred embodiment, the insulating skeleton structure further includes a joint baffle 50. The joint baffle 50 is located below the relief groove 40, and the joint baffle 50 includes a first protrusion 501 and a second protrusion 502, such as Figure 5 As shown in FIG. 7 or 8. Among them, the first protrusion 501 protrudes towards the joint, and there is a gap after two adjacent first protrusions 501 are joined; the second protrusion 502 protrudes into the groove, such as Figure 7 As shown. The joint baffle 50 in the preferred technical solution of this embodiment is composed of two parts. The first protrusion 501 protrudes a certain height towards the joint. After the iron core 1 forms a circle, there is a gap between the baffles of two first protrusions 501, so that even if a small amount of burrs are generated here during manufacturing, it can be ensured that it does not affect the formation of a circle. The second protrusion 502 protrudes into the groove at the first protrusion 501, and its function is similar to that of the groove mouth baffle 60. It can block part of the enameled wire from moving and loosening towards the joint, increase the creepage distance between the enameled wire and the iron core at the joint, and increase the safety performance of the insulating skeleton structure.

[0053] According to a preferred embodiment, the insulating skeleton structure further includes a notch baffle 60. The notch baffle 60 is located at the notch position of the core tooth portion, and the notch baffle 60 includes a third convex portion 601 protruding into the slot and a fourth convex portion 602 protruding towards the core 1, as Figure 5 or Figure 8 or Figure 9 shown. In the preferred technical solution of this embodiment, the third convex portion 601 of the notch baffle 60 protruding into the slot can block part of the enameled wire from loosening towards the notch, and the fourth convex portion 602 of the notch baffle 60 protruding towards the core 1 can increase the creepage distance between the enameled wire and the notch core, thereby increasing the safety performance of the insulating skeleton structure.

[0054] According to a preferred embodiment, the insulating skeleton structure further includes a plurality of positioning posts 70, and the positioning posts 70 are located on the upper and lower surfaces of the connecting portion 30, as Figures 1 to 3 shown. Preferably, the positioning posts 70 are located on the upper and lower surfaces of the core yoke portion. Preferably, the cross-section of the positioning posts 70 is circular, square or oval, and the height of the positioning posts 70 is comparable to the height of the inner baffle 10. Preferably, the positioning posts 70 are provided with pin holes 701 for fixing pins, as Figure 1 or shown in Figure 2. More preferably, the pin holes 701 are of a structure with a gradually decreasing inner diameter from the upper end to the lower end. The positioning posts 70 in the preferred technical solution of this embodiment have the following advantages: First, they maintain the shape of the winding and prevent the winding from collapsing outwards; second, they act as pin posts. By providing pin holes 701 on the positioning posts 70, they can be welded to the circuit board after inserting the pins. Setting the pin holes 701 to have a gradually decreasing inner diameter from the upper end to the lower end can increase the fastening degree of the pins; third, the height of the positioning posts 70 is comparable to the height of the inner baffle 10, and they can, together with the inner baffle 10, make the entire core 1 stand upright on the workbench to protect the winding from being damaged.

[0055] According to a preferred embodiment, a boss 702 is provided between the positioning posts 70 and the outer baffle 20 to separate the enameled wire and the core 1 from each other through the boss 702, as Figures 1 to 3 shown. In addition to acting as a reinforcing rib to enhance the hardness of the positioning posts 70 and the outer baffle 20, the boss 702 in the preferred technical solution of this embodiment can also act as an overhead platform. Specifically, a little of the core 1 will be exposed in the insulating skeleton structure at the joint between the core yoke portions. By placing the enameled wire on the boss 702, the electrical clearance between the enameled wire and the core 1 can be increased, enhancing the safety performance of the product.

[0056] According to a preferred embodiment, a wire passing groove 80 is formed between the outer baffle 20, the positioning posts 70 and the boss 702, and the enameled wire passes through the wire passing groove 80, as Figures 1 to 3As shown. The wire groove 80 of the preferred technical solution of this embodiment is used for the winding to pass through. The wire groove 80 is provided on both the upper and lower surfaces of the iron core 1 in the preferred technical solution of this embodiment, which can separate the tap wires of different phases to pass through, not only keeping the wiring standard and beautiful, but also reducing the risk of short circuit between phases of the motor.

[0057] According to a preferred embodiment, the insulating skeleton structure further includes a plurality of buckle posts 90. The top end of the buckle post 90 is provided with an inverted buckle structure 901, and the inverted buckle structure 901 occupies a partial area of the top end of the buckle post 90 and protrudes laterally from the top end of the buckle post 90, as Figure 1 or shown in FIG. 2. Preferably, the inverted buckle structure 901 occupies a partial area of the top end of the buckle post 90 and protrudes outward from the top end of the buckle post 90, as Figure 1 or shown in FIG. 2. Preferably, the cross section of the buckle post 90 is circular, square or oval. The buckle post 90 of the preferred technical solution of this embodiment can replace any positioning post 70. The inverted buckle structure 901 of the preferred technical solution of this embodiment occupies a partial area of the top end of the buckle post 90 and protrudes laterally from the top end of the buckle post 90, so that the circuit board can be installed by using the buckle post 90. Specifically, the end face of the buckle post 90 not occupied by the inverted buckle structure 901 is responsible for carrying the circuit board, and the protruding part of the inverted buckle structure 901 is used to tightly hold the circuit board, thereby fixing the circuit board.

[0058] According to a preferred embodiment, the insulating skeleton structure is a structure integrally formed by injection molding using an insulating material. Preferably, the insulating material is, for example, PBT material, or glass fiber is added to the PBT material. The insulating skeleton structure of the preferred technical solution of this embodiment is integrally formed by injection molding, which can not only save the link of manually sleeving the skeleton and improve production efficiency, but also ensure the quality of the insulating skeleton structure.

[0059] The stator of this embodiment includes the insulating skeleton structure of any technical solution of this embodiment, as Figure 1 shown. The stator of this embodiment wraps a layer of insulating skeleton structure with complete functions, safety and reliability on the iron core 1, solving the problems of easy deformation, easy scratching of the enameled wire, single function and insufficient safety factor of the traditional skeleton.

[0060] The motor of this embodiment includes the stator of any technical solution of this embodiment. The motor of this embodiment uses a stator wrapped with an insulating skeleton structure, which ensures the product quality of the motor and can also meet the process requirements of different motors.

[0061] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An insulating skeleton structure, characterized in that, it is used to cover the surface of the iron core (1), and includes an inner baffle (10), an outer baffle (20) and a connecting part (30). Among them, the inner baffle (10) is located on the upper and lower surfaces of the inner circle of the iron core (1), the outer baffle (20) is located on the upper and lower surfaces of the iron core yoke part, and the connecting part (30) is located between the inner baffle (10) and the outer baffle (20); It further includes a relief groove (40), and the relief groove (40) is located at the joint of the iron core yoke part, so that a part of the iron core at the joint is exposed from the insulating skeleton structure through the relief groove (40); It further includes a joint baffle (50), the joint baffle (50) is located below the relief groove (40), and the joint baffle (50) includes a first convex part (501) and a second convex part (502), where, the first convex part (501) protrudes towards the joint, and there is a gap after adjacent two first convex parts (501) are joined; the second convex part (502) protrudes towards the groove.

2. The insulating skeleton structure according to claim 1, characterized in that, the inner diameter of the inner baffle (10) is larger than the inner diameter of the iron core (1), and the height of the inner baffle (10) is greater than the height of the winding of the iron core (1).

3. The insulating skeleton structure according to claim 1, characterized in that, the ends of the inner baffle (10) and / or the outer baffle (20) are set to be rounded.

4. The insulating skeleton structure according to claim 1, characterized in that, a plurality of reinforcing ribs (101) are arranged on the inner baffle (10), the plurality of reinforcing ribs (101) are located on the outer side of the inner baffle (10), and the reinforcing ribs (101) connect the inner baffle (10) and the connecting part (30).

5. The insulating skeleton structure according to claim 4, characterized in that, the surface of the reinforcing rib (101) away from the inner baffle (10) is set to be an arc-shaped structure concave towards the inner baffle (10).

6. The insulating skeleton structure according to claim 1, characterized in that, an inner tie strap groove (102) and an inner tie strap opening (103) are arranged on the inner baffle (10), where, the inner tie strap groove (102) is a groove located on the inner side of the inner baffle (10), the inner tie strap opening (103) is an opening located at the end of the inner baffle (10).

7. The insulating skeleton structure according to claim 1, characterized in that, an outer tie strap opening (201) is arranged on the outer baffle (20), and the outer tie strap opening (201) is an opening located at the end of the outer baffle (20).

8. The insulating skeleton structure according to claim 1, characterized in that, a tie strap hole (301) is arranged on the connecting part (30), the tie strap hole (301) is an arched structure or a tubular structure, and the tie strap hole (301) extends from the inner baffle (10) to the outer baffle (20).

9. The insulating skeleton structure according to claim 1, characterized in that, It further includes a notch baffle (60), the notch baffle (60) is located at the notch position of the core tooth part, and the notch baffle (60) includes a third convex part (601) protruding into the slot and a fourth convex part (602) protruding towards the core (1).

10. The insulating skeleton structure according to claim 1, wherein, it further includes a plurality of positioning posts (70), and the positioning posts (70) are located on the upper and lower surfaces of the connecting part (30).

11. The insulating skeleton structure according to claim 10, wherein, the cross-section of the positioning post (70) is circular, square or elliptical, and the height of the positioning post (70) is equivalent to the height of the inner baffle (10).

12. The insulating skeleton structure according to claim 10, wherein, a pin insertion hole (701) for fixing a pin is provided on the positioning post (70), and the pin insertion hole (701) has a structure with a gradually decreasing inner diameter from the upper end to the lower end.

13. The insulating skeleton structure according to claim 10, wherein, a boss (702) is provided between the positioning post (70) and the outer baffle (20) to separate the enameled wire from the core (1) through the boss (702).

14. The insulating skeleton structure according to claim 13, wherein, a wire passing groove (80) is formed between the outer baffle (20), the positioning post (70) and the boss (702), and the enameled wire passes through the wire passing groove (80).

15. The insulating skeleton structure according to claim 1, wherein, it further includes a plurality of buckling posts (90), a buckling structure (901) is provided at the top of the buckling post (90), and the buckling structure (901) occupies a partial area of the top of the buckling post (90) and protrudes laterally from the top of the buckling post (90).

16. The insulating skeleton structure according to claim 1, wherein, the insulating skeleton structure is a structure integrally formed by injection molding with an insulating material.

17. A stator, wherein, it includes the insulating skeleton structure according to any one of claims 1 to 16.

18. A motor, wherein, it includes the stator according to claim 17.

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