CN110829672A

CN110829672A - Insulating skeleton texture, stator and motor

Info

Publication number: CN110829672A
Application number: CN201911152648.XA
Authority: CN
Inventors: 吴国锋; 曾文志; 李庆; 陈东锁; 李文宇
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Kaibang Motor Manufacture Co Ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-02-21

Abstract

The invention discloses an insulating framework structure, a stator and a motor, relates to the technical field of motors, and solves the problems that an enameled wire in the prior art is lack of a protection structure and is easy to damage during assembly. The insulating framework structure is used for coating the surface of an iron core and comprises an inner baffle, an outer baffle and a connecting part, wherein the inner baffle is positioned on the upper surface and the lower surface of the inner circle of the iron core, the outer baffle is positioned on the upper surface and the lower surface of the yoke part of the iron core, and the connecting part is positioned between the inner baffle and the outer baffle. The insulating framework structure is made of insulating materials, is coated on the surface of the iron core, has a certain thickness, can effectively separate the iron core from the winding, and increases the electrical safety distance between the iron core and the winding; on the other hand, the insulated framework structure can protect the enameled wire through the action of the inner baffle and the outer baffle, avoid damaging the enameled wire when manufacturing the stator, and also can effectively prevent the enameled wire from collapsing.

Description

Insulating skeleton texture, stator and motor

Technical Field

The invention relates to the technical field of motors, in particular to an insulating framework structure, a stator and a motor.

Background

The straight bar stator core of the traditional alternating current motor enables the core to be wrapped with one layer of framework to achieve the purpose of insulation in an injection molding mode, the framework is simple in structure and insufficient in reliability, an enameled wire is exposed through a notch, and the two teeth are wrapped with plastic in the process to form flash easily. The applicant has found that the conventional skeleton has at least the following drawbacks: the enameled wire has no protection structure, and is easy to damage during assembly; the safety performance of the traditional framework is difficult to meet the increasing market demand, the condition of insufficient safety distance between an enameled wire and an iron core is easy to occur, and the product quality is seriously influenced; the traditional framework has single function and can not meet the process requirements of different motors, such as incapability of installing circuit boards and positioning power lines, protectors and the like.

Disclosure of Invention

One of the purposes of the invention is to provide an insulating framework structure, a stator and a motor, which solve the technical problems that an enameled wire in the prior art is lack of a protection structure and is easy to damage during assembly. The various technical effects that can be produced by the preferred technical solution of the present invention are described in detail below.

In order to achieve the purpose, the invention provides the following technical scheme:

the insulating framework structure is used for coating the surface of an iron core and comprises an inner baffle, an outer baffle and a connecting part, wherein the inner baffle is positioned on the upper surface and the lower surface of the inner circle of the iron core, the outer baffle is positioned on the upper surface and the lower surface of the yoke part of the iron core, and the connecting part is positioned between the inner baffle and the outer baffle.

According to a preferred embodiment, the inner circle diameter of the inner barrier is larger than the inner circle diameter of the core, and the height of the inner barrier is larger than the height of the core winding.

According to a preferred embodiment, the ends of the inner and/or outer baffle are provided with a rounded corner.

According to a preferred embodiment, a plurality of reinforcing ribs are arranged on the inner baffle, the plurality of reinforcing ribs are positioned outside the inner baffle, and the reinforcing ribs connect the inner baffle and the connecting part.

According to a preferred embodiment, one surface of the reinforcing rib, which is far away from the inner baffle plate, is provided with an arc structure which is concave towards the inner baffle plate.

According to a preferred embodiment, the inner baffle is provided with an inner strap groove and an inner strap opening, wherein the inner strap groove is a groove located on the inner side of the inner baffle, and the inner strap opening is an opening located at the end part of the inner baffle.

According to a preferred embodiment, the outer baffle is provided with an outer band opening, and the outer band opening is an opening located at the end part of the outer baffle.

According to a preferred embodiment, the connecting part is provided with a tie hole, the tie hole is of an arch structure or a tubular structure, and the tie hole extends from the inner baffle to the outer baffle.

According to a preferred embodiment, the insulation framework structure further comprises a yielding groove, the yielding groove is located at the splicing position of the iron core yoke part, and part of the iron core at the splicing position is exposed out of the insulation framework structure through the yielding groove.

According to a preferred embodiment, the insulation framework structure further comprises a splicing baffle, the splicing baffle is located below the abdicating groove and comprises a first protruding portion and a second protruding portion, wherein the first protruding portion protrudes towards the splicing position, and a gap is formed between two adjacent first protruding portions after the first protruding portions are spliced; the second boss projects inwardly of the groove.

According to a preferred embodiment, the insulation framework structure further comprises a notch baffle, the notch baffle is located at the position of the notch of the iron core tooth part, and the notch baffle comprises a third protruding part protruding towards the inside of the slot and a fourth protruding part protruding towards the iron core.

According to a preferred embodiment, the insulating framework structure further includes a plurality of positioning pillars, and the positioning pillars are located on both upper and lower surfaces of the connecting portion.

According to a preferred embodiment, the positioning column has a circular, square or oval cross-section and the height of the positioning column corresponds to the height of the inner baffle.

According to a preferred embodiment, the positioning column is provided with a pin hole for fixing a pin, and the pin hole is a structure with an inner diameter gradually reduced from the upper end to the lower end.

According to a preferred embodiment, a boss is disposed between the positioning column and the outer baffle, so that the enameled wire and the iron core are separated from each other by the boss.

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

According to a preferred embodiment, the insulating skeleton structure further comprises a plurality of buckling columns, wherein the top ends of the buckling columns are provided with inverted buckling structures, and the inverted buckling structures occupy partial areas of the top ends of the buckling columns and protrude out of the top ends of the buckling columns towards the side faces.

According to a preferred embodiment, the insulating framework structure is a structure integrally formed by injection molding of an insulating material.

The stator comprises the insulating framework structure in any technical scheme of the invention.

The motor comprises the stator according to any technical scheme of the invention.

The insulating framework structure, the stator and the motor provided by the invention at least have the following beneficial technical effects:

the insulating framework structure is made of insulating materials, is coated on the surface of the iron core, has a certain thickness, can effectively separate the iron core from the winding, and increases the electrical safety distance between the iron core and the winding; on the other hand, the insulated framework structure can protect the enameled wire through the action of the inner baffle and the outer baffle, avoid damaging the enameled wire when manufacturing the stator, and also can effectively prevent the enameled wire from collapsing. The insulated framework structure solves the problem that the enameled wire is easy to be damaged during assembly because the enameled wire is not provided with a protection structure due to the use of the traditional framework.

In addition, the preferred technical scheme of the invention can also produce the following technical effects:

according to the technical scheme, the splicing position baffle is arranged on the insulating framework structure, the first protruding parts of the splicing position baffle protrude to the splicing position by a certain height, and a gap is reserved between every two baffle plates of the first protruding parts after the iron core is rounded, so that the rounding cannot be influenced even if a small amount of burrs are generated at the position during manufacturing; the second bellying of concatenation department baffle is protruding in first bellying department is to the inslot, can block partial enameled wire to the concatenation department and walk a position pine and take off, increases the creepage distance of enameled wire and concatenation department iron core, increases insulating skeleton texture's security performance. According to the preferred technical scheme, the insulating framework structure is further provided with a notch baffle, and a third protruding part of the notch baffle protrudes towards the inside of the groove and can prevent part of enameled wires from loosening towards the notch; the fourth bellying of notch baffle is to the iron core protrusion, and the creepage distance of multiplicable enameled wire and notch iron core increases insulating skeleton texture's security performance. The insulating framework in the preferred technical scheme of the invention can increase the creepage distance between the enameled wire and the notch iron core through the action of the splicing position baffle and the notch baffle, and solves the problem that the product quality is affected due to the insufficient safety distance between the enameled wire and the iron core in the traditional framework.

In addition, the insulating skeleton structure is last to set up the knot post, and the top of detaining the post is provided with the back-off structure to the back-off structure occupies the partial area of detaining the post top and to the side protrusion in detaining the post top, and the usable terminal surface of detaining the post and not being occupied by the back-off structure is responsible for bearing the weight of the circuit board, and the back-off structure bulge is used for tightly detaining the circuit board, thereby fixes the circuit board. The invention adopts the preferred technical scheme that the arranged buckling columns can be used for fixing the circuit board, and the problems that the traditional framework has single function and the circuit board cannot be installed are solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a preferred embodiment of the stator of the present invention;

FIG. 2 is a partial schematic view of a preferred embodiment of the upper end of the stator of the present invention;

FIG. 3 is a partial schematic view of a preferred embodiment of the lower end of the stator of the present invention;

FIG. 4 is a schematic view of a preferred embodiment of a reinforcing bar according to the present invention;

FIG. 5 is a partial top view of a preferred embodiment of the stator of the present invention;

FIG. 6 is a schematic view of a preferred embodiment of the present invention of a yield slot;

FIG. 7 is a schematic view of a preferred embodiment of a splice closure of the present invention;

FIG. 8 is a first schematic view of a preferred embodiment of the notch baffle of the present invention;

figure 9 is a second schematic view of a preferred embodiment of the notch baffle of the present invention.

In the figure: 1-an iron core; 10-an inner baffle; 20-an outer baffle; 30-a connecting portion; 40-a yielding groove; 50-a splicing baffle; 60-notch baffles; 70-a positioning column; 80-a wire-passing groove; 90-a button post; 101-reinforcing ribs; 102-inner strap groove; 103-inner ribbon port; 201-outer band mouth; 301-a tie hole; 501-a first boss; 502-a second boss; 601-a third boss; 602-a fourth boss; 701-pin hole; 702-a boss; 901-inverted structure.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

The insulating frame structure, the stator and the motor according to the present embodiment will be described in detail with reference to fig. 1 to 9.

The insulating framework structure of the embodiment is used for coating the surface of the iron core 1. Preferably, the insulating framework structure comprises an inner baffle 10, an outer baffle 20 and a connecting part 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 yoke part of the iron core, and the connecting part 30 is located between the inner baffle 10 and the outer baffle 20, as shown in fig. 1 to 3. Preferably, the core 1 of the present embodiment is a straight stator core.

The insulating framework structure of the embodiment is made of insulating materials, is coated on the surface of the iron core 1, has a certain thickness, can effectively separate the iron core 1 from the winding, and increases the electrical safety distance between the iron core 1 and the winding; on the other hand, the insulated framework structure can protect the enameled wire through the action of the inner baffle 10 and the outer baffle 20, avoid damaging the enameled wire when manufacturing the stator, and also effectively prevent the enameled wire from collapsing. The problem that the enameled wire is easily damaged when being assembled because the enameled wire is not provided with a protection structure due to the fact that a traditional skeleton is used is solved by the insulating skeleton structure of the embodiment.

According to a preferred embodiment, the inner circle diameter of the inner barrier 10 is larger than the inner circle diameter of the core 1, and the height of the inner barrier 10 is larger than the height of the winding of the core 1. Preferably, the inner baffle 10 extends to a certain height perpendicular to the connecting portion 30 to two ends far away from the iron core 1, and the height of the inner baffle is greater than the height of the winding, so that the enameled wire of the winding can be prevented from collapsing towards the inner circle, the winding can be protected, and meanwhile, the electrical safety distance between the enameled wire and the rotor can be increased.

According to a preferred embodiment, the ends of the inner baffle 10 and/or the outer baffle 20 are provided with a rounded corner shape. Preferably, the ends of the inner baffle 10 and the outer baffle 20 are both rounded as shown in fig. 1 to 3. The preferable technical scheme of this embodiment sets up the tip of interior baffle 10 and outer baffle 20 into big fillet shape, can increase stator internal clearance to can strengthen the inside radiating effect of stator.

According to a preferred embodiment, a plurality of ribs 101 are provided on the inner barrier 10, the plurality of ribs 101 are located outside the inner barrier 10, and the ribs 101 connect the inner barrier 10 and the connecting portion 30, as shown in fig. 4. Preferably, the surface of the reinforcing rib 101 away from the inner barrier 10 is configured as an arc structure concave towards the inner barrier 10, as shown in fig. 4. When the enameled wire is wound, along with the increase of the number of turns of the enameled wire, the pressure borne by the inner baffle plate 10 is larger, and the inner baffle plate 10 has the risk of deformation of an inner circle and can interfere with the assembly of the rotor. According to the preferable technical scheme of the embodiment, the inner baffle plate 10 is provided with the plurality of reinforcing ribs 101, so that the rigidity of the inner baffle plate 10 can be enhanced through the reinforcing ribs 101, and the deformation amount of the inner baffle plate 10 is greatly reduced. On the other hand, the surface of the reinforcing rib 101, which is far away from the inner baffle 10, is arranged into an arc structure which is concave towards the inner baffle 10, so that the hardness of the inner baffle 10 can be increased, the groove fullness rate is not influenced, and the enameled wire can not be scratched when being wound.

According to a preferred embodiment, the inner baffle 10 is provided with an inner strap slot 102 and an inner strap opening 103, as shown in fig. 1 or 2. Preferably, the inner cable tie slot 102 is a slot located inside the inner baffle 10; the inner tie wrap 103 is an opening at the end of the inner barrier 10 as shown in fig. 1 or 2. More preferably, the groove depth and the groove width of the inner band groove 102 are not limited, and are determined according to the band. The width of the inner band opening 103 is equivalent to the width of the inner band groove 102, and the depth is not limited. The preferable technical scheme of this embodiment sets up interior band groove 102 and interior ribbon mouth 103 on baffle 10 including, when the ribbon is pricked here, can effectively reduce the ribbon protrusion height, space allowance when increasing the income rotor reduces the risk that rotor and ribbon rubbed the limit.

According to a preferred embodiment, the outer baffle 20 is provided with an outer band opening 201, and the outer band opening 201 is an opening at the end of the outer baffle 20, as shown in fig. 1 to 3. Similarly, in the preferred technical scheme of this embodiment, the outer band opening 201 is arranged on the outer baffle 20, so that the band can be conveniently bound.

According to a preferred embodiment, the connecting portion 30 is provided with a tie hole 301, as shown in fig. 1 or 2. Preferably, the tie strap aperture 301 is an arch-shaped structure, and the tie strap aperture 301 extends from the inner baffle 10 to the outer baffle 20, as shown in fig. 1 or 2. The height and width of the strap aperture 301 will depend on the strap used. Preferably, the strap aperture 301 may also be a tubular structure. I.e. the inner band opening 103 and the outer band opening 201, are separated from the core 1 by an insulating layer. In the preferred technical scheme of the embodiment, the connecting part 30 is provided with a tie strap hole 301, and the tie strap hole 301, the inner tie slot 102, the inner tie opening 103 and the outer tie opening 201 are used for binding a tie strap, so that other parts can be fixed above a winding, such as protectors, power wires, thermocouple wires and the like.

According to a preferred embodiment, the insulating bobbin structure further comprises a relief groove 40, the relief groove 40 is located at the split of the core yoke portion, so that a part of the core at the split is exposed to the insulating bobbin structure through the relief groove 40, as shown in fig. 5 or 6. Preferably, the shape of the relief groove 40 may be determined according to the shape of the core 1. The avoiding groove 40 of the preferred technical scheme of the embodiment is formed by the following steps: a certain area is hollowed along the edge of the iron core 1, so that the insulating framework structure at the splicing part is exposed out of part of the iron core 1. I.e., the edges of the insulating skeleton structure are not flush with the edges of the core 1 and have a width smaller than the width of the core 1, so that a portion of the core 1 is exposed, as shown in fig. 6. The preferred technical scheme of this embodiment sets up the groove of stepping down 40 in iron core yoke portion amalgamation department, can effectively prevent to produce excessive glue at the amalgamation face when moulding plastics, hinders 1 amalgamation of iron core circle.

According to a preferred embodiment, the insulation skeleton structure further includes a split stopper 50, the split stopper 50 is located below the relief groove 40, and the split stopper 50 includes a first convex portion 501 and a second convex portion 502, as shown in fig. 5 or 7. The first convex parts 501 protrude towards the splicing part, and a gap is formed between every two adjacent first convex parts 501 after splicing; the second boss 502 projects inwardly of the channel as shown in fig. 7. The preferred technical scheme's of this embodiment amalgamation department baffle 50 comprises two parts, and first bellying 501 is to amalgamation department protrusion certain height, and after iron core 1 becomes the circle, a gap is left between two liang of first bellying 501's baffle for even produce a small amount of burrs here and can guarantee not influence the circle of formation when making. The second boss 502 protrudes inwards from the first boss 501, the function of the second boss is similar to that of the notch baffle 60, part of enameled wires can be prevented from moving away from the splicing position, the creepage distance between the enameled wires and the iron core at the splicing position is increased, and the safety performance of the insulating framework structure is improved.

According to a preferred embodiment, the insulation skeleton structure further comprises a notch guard 60, the notch guard 60 is located at the core tooth notch position, and the notch guard 60 comprises a third protrusion 601 protruding into the slot and a fourth protrusion 602 protruding toward the core 1, as shown in fig. 5 or fig. 8 or fig. 9. According to the preferred technical scheme of this embodiment, the third protruding portion 601 of the notch baffle 60 protruding into the slot can block part of enameled wires from loosening towards the notch, and the creepage distance between the enameled wires and the notch iron core can be increased by the notch baffle 60 to the fourth protruding portion 602 protruding from the iron core 1, so that the safety performance of the insulating framework structure is improved.

According to a preferred embodiment, the insulating frame structure further includes a plurality of positioning posts 70, and the positioning posts 70 are located on both upper and lower surfaces of the connecting portion 30, as shown in fig. 1 to 3. Preferably, the positioning posts 70 are located on both upper and lower surfaces of the core yoke. Preferably, the cross section of the positioning column 70 is circular, square or oval, and the height of the positioning column 70 is equivalent to the height of the inner baffle 10. Preferably, the positioning post 70 is provided with a pin hole 701 for fixing a pin, as shown in fig. 1 or 2. More preferably, the pin hole 701 has a structure in which an inner diameter is gradually reduced from an upper end to a lower end. The positioning post 70 of the preferred embodiment has the following advantages: firstly, the shape of the winding is kept, so that the winding does not collapse outwards; secondly, the pin is used as a pin column, a pin hole 701 is formed in the positioning column 70, the pin can be welded with a circuit board after being inserted, and the pin hole 701 is of a structure with the inner diameter gradually reduced from the upper end to the lower end, so that the fastening degree of the pin can be increased; thirdly, the height of the positioning column 70 is equivalent to that of the inner baffle 10, and the whole iron core 1 can be erected on a workbench together with the inner baffle 10, so that the winding is protected from being damaged.

According to a preferred embodiment, a boss 702 is disposed between the positioning column 70 and the outer baffle 20, so that the enameled wire and the iron core 1 are separated from each other by the boss 702, as shown in fig. 1-3. The boss 702 of the preferred technical solution of this embodiment can be used as an overhead platform in addition to being used as a reinforcing rib to enhance the hardness of the positioning column 70 and the outer baffle 20. Specifically, the insulating skeleton texture of the concatenation department between iron core yoke portion and yoke portion can expose a little iron core 1, through arrange the enameled wire in boss 702 on, the electric clearance of multiplicable enameled wire and iron core 1 has strengthened the security performance of product.

According to a preferred embodiment, a wire passing groove 80 is formed among the outer baffle 20, the positioning column 70 and the boss 702, and the enameled wire passes through the wire passing groove 80, as shown in fig. 1 to 3. The wire passing groove 80 of the preferred embodiment is used for winding routing. According to the preferred technical scheme of the embodiment, the wire passing grooves 80 are formed in the upper surface and the lower surface of the iron core 1, so that tapped wires of different phases can be separately wired, the wiring is standard and attractive, and the risk of interphase short circuit of the motor can be reduced.

According to a preferred embodiment, the insulating skeleton structure further comprises a plurality of studs 90, the top ends of the studs 90 are provided with inverted structures 901, and the inverted structures 901 occupy partial areas of the top ends of the studs 90 and protrude out of the top ends of the studs 90 towards the side, as shown in fig. 1 or 2. Preferably, the inverted structure 901 occupies a portion of the area of the top end of the stud 90 and protrudes outward beyond the top end of the stud 90, as shown in fig. 1 or 2. Preferably, the cross-section of the post 90 is circular, square or oval. The buckling column 90 of the preferred embodiment can replace any positioning column 70. The reverse-buckling structure 901 of the preferred embodiment occupies a part of the top of the buckling column 90 and protrudes laterally beyond the top of the buckling column 90, so that the circuit board can be mounted by using the buckling column 90. Specifically, the end face of the buckling column 90 not occupied by the inverted buckling structure 901 is responsible for carrying the circuit board, and the protruding part of the inverted buckling structure 901 is used for tightly buckling the circuit board, so that the circuit board is fixed.

According to a preferred embodiment, the insulating framework structure is a structure which is integrally formed by injection molding by using an insulating material. Preferably, the insulating material is, for example, a PBT material, or glass fibers are added to the PBT material. The insulating skeleton texture of the preferred technical scheme of this embodiment is through mode integrated into one piece of moulding plastics, both can save the link of artifical cover skeleton, improves production efficiency, can make insulating skeleton texture's quality obtain guaranteeing again.

The stator of this embodiment includes the insulating skeleton structure of any technical solution of this embodiment, as shown in fig. 1. The stator of this embodiment wraps up one deck multiple functional, safe and reliable's insulating skeleton texture on iron core 1, has solved the yielding, easy scratch enameled wire, function singleness, the not enough problem of factor of safety of traditional skeleton.

The motor of the embodiment comprises the stator of any technical scheme of the embodiment. The motor of this embodiment has used the parcel to have the stator of insulating skeleton texture for the product quality of motor obtains guaranteeing, still can satisfy the technological requirement of different motors simultaneously.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides an insulating skeleton texture, its characterized in that for cladding in iron core (1) on the surface, including interior baffle (10), outer baffle (20) and connecting portion (30), wherein, interior baffle (10) are located the upper and lower two sides of circle in iron core (1), outer baffle (20) are located the upper and lower two sides of iron core yoke portion, connecting portion (30) are located interior baffle (10) with between outer baffle (20).

2. Insulating bobbin structure according to claim 1, characterized in that the inner circle diameter of the inner barrier (10) is larger than the inner circle diameter of the core (1) and the height of the inner barrier (10) is larger than the height of the core (1) winding.

3. Insulating skeleton structure according to claim 1, characterized in that the ends of the inner barrier (10) and/or the outer barrier (20) are provided with a rounded corner shape.

4. Insulating skeleton structure according to claim 1, characterized in that, be provided with a plurality of strengthening rib (101) on the interior baffle (10), a plurality of strengthening rib (101) are located the interior baffle (10) outside, and the strengthening rib (101) is connected interior baffle (10) and connecting portion (30).

5. An insulating skeleton structure according to claim 4, characterized in that the surface of the reinforcing rib (101) far away from the inner baffle (10) is arranged into an arc structure concave towards the inner baffle (10).

6. Insulating skeleton structure according to claim 1, characterized in that the inner baffle (10) is provided with an inner tie groove (102) and an inner tie mouth (103), wherein,

the inner strap groove (102) is a groove positioned at the inner side of the inner baffle (10),

the inner binding belt opening (103) is an opening located at the end part of the inner baffle plate (10).

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

8. An insulating skeleton structure according to claim 1, characterized in that the connecting part (30) is provided with a tie hole (301), the tie hole (301) is an arch structure or a tubular structure, and the tie hole (301) extends from the inner barrier (10) to the outer barrier (20).

9. The insulation skeleton structure of claim 1, further comprising a relief groove (40), wherein the relief groove (40) is located at the splicing part of the core yoke part, so that part of the core at the splicing part is exposed to the insulation skeleton structure through the relief groove (40).

10. An insulating skeleton structure according to claim 1, further comprising a split flap (50), wherein the split flap (50) is located below the relief groove (40), and wherein the split flap (50) comprises a first protrusion (501) and a second protrusion (502), wherein,

the first convex parts (501) protrude towards the splicing part, and a gap is formed between every two adjacent first convex parts (501) after splicing; the second boss (502) projects inwardly of the groove.

11. An insulating skeleton structure according to claim 1, characterized by further comprising notch guards (60), the notch guards (60) being located at core tooth notch positions, and the notch guards (60) comprising third protrusions (601) protruding into slots and fourth protrusions (602) protruding into the core (1).

12. The insulating skeleton structure of claim 1, further comprising a plurality of positioning posts (70), wherein the positioning posts (70) are located on the upper and lower surfaces of the connecting portion (30).

13. Insulating frame structure as claimed in claim 12, characterized in that said positioning posts (70) have a circular, square or oval cross-section and in that the height of said positioning posts (70) corresponds to the height of said internal baffle (10).

14. The insulating skeleton structure of claim 12, wherein the positioning column (70) is provided with a pin hole (701) for fixing a pin, and the pin hole (701) is a structure with an inner diameter gradually reduced from the upper end to the lower end.

15. Insulation skeleton structure according to claim 12, characterized in that a boss (702) is provided between the positioning column (70) and the outer baffle (20) to separate the enameled wire and the iron core (1) from each other by the boss (702).

16. The insulation framework structure as recited in claim 15, wherein a wire passing groove (80) is formed among the outer baffle (20), the positioning column (70) and the boss (702), and enameled wires are passed through the wire passing groove (80).

17. The insulating skeleton structure of claim 1, further comprising a plurality of studs (90), wherein the top ends of the studs (90) are provided with inverted structures (901), and the inverted structures (901) occupy partial areas of the top ends of the studs (90) and protrude sideward beyond the top ends of the studs (90).

18. The insulating skeleton structure of claim 1, wherein the insulating skeleton structure is integrally formed by injection molding using an insulating material.

19. A stator comprising an insulating skeleton structure according to any one of claims 1 to 18.

20. An electrical machine comprising a stator according to claim 19.