Insulating skeleton, stator, motor, compressor and vehicle

Abstract

The present invention provides an insulating skeleton, a stator, a motor, a compressor and a vehicle. The insulating skeleton includes: a first bracket; a second bracket, which is disposed opposite to the first bracket, and a terminal accommodating portion is provided on a side of the second bracket facing away from the first bracket. The terminal accommodating portion includes: a receiving groove for accommodating a crimp terminal, and notch openings are provided on opposite side walls of the receiving groove along a first direction; an overflow glue groove, along the first direction, the overflow glue groove is located on at least one side of the receiving groove, and the overflow glue groove communicates with the notch opening; a third bracket, which is located between the first bracket and the second bracket and is connected to the first bracket and the second bracket. In the insulating skeleton provided by the present invention, due to the arrangement of the overflow glue groove, during the process of sealing the crimp terminal with sealant, the excess sealant will be blocked by the overflow glue groove, so that the sealant will not overflow to the outside of the terminal accommodating portion, achieving a better seal for the coil.

Description

Technical Field

[0001] The present invention relates to the technical field of compressors, and more particularly, to an insulating skeleton, a stator, an electric motor, a compressor, and a vehicle. Background Art

[0002] Currently, an electric motor includes a stator and a rotor, and the rotor and the stator are configured as laminated iron cores. Coils are wound around each individual tooth in the stator slots. Usually, the coils are wound around the stator iron core, and there is an insulating skeleton for insulating the coils between the stator iron core and the coils. The coils of the same phase are electrically connected through the insulating skeleton and crimp terminals.

[0003] Among them, in a compressor, the bare wires need to be sealed to meet the production safety requirements of the compressor, but it is difficult to achieve the seal between the crimp terminals and the bare wires of the coils in the related art. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related arts.

[0005] To this end, a first aspect of the present invention provides an insulating skeleton.

[0006] A second aspect of the present invention further provides a stator.

[0007] A third aspect of the present invention further provides an electric motor.

[0008] A fourth aspect of the present invention further provides a compressor.

[0009] A fifth aspect of the present invention further provides a vehicle.

[0010] In view of this, a first aspect of the present invention provides an insulating skeleton, including: a first bracket; a second bracket, disposed opposite to the first bracket, a terminal receiving portion is provided on a side of the second bracket facing away from the first bracket, and the terminal receiving portion includes: a receiving groove for receiving a crimp terminal, and notch openings are provided on opposite side walls of the receiving groove along a first direction; an overflow groove, along the first direction, the overflow groove is located on at least one side of the receiving groove, and the overflow groove is communicated with the notch opening; a third bracket, the third bracket is located between the first bracket and the second bracket and is connected to the first bracket and the second bracket.

[0011] The insulating skeleton provided by the present invention includes a first bracket, a second bracket and a third bracket, the second bracket and the first bracket are arranged in a relative manner, the third bracket is arranged between the first bracket and the second bracket, and one end of the third bracket is connected to the first bracket, and the other end of the third bracket is connected to the second bracket, so that the first bracket, the second bracket and the third bracket are connected as a whole. Among them, the insulating skeleton also includes a terminal accommodating portion, the terminal accommodating portion is arranged on the second bracket, the crimping terminal is arranged in the terminal accommodating portion, and the coils of the same phase are connected in the terminal accommodating portion through the crimping terminal, so that the coils of the same phase are connected in series. Among them, the terminal accommodating portion is arranged on the side of the second bracket away from the first bracket, thereby avoiding the occupation of the coil winding space. At the same time, the terminal accommodating portion and the wire slot are distributed along the first direction, which is convenient for the winding of the coil and the series connection of the same phase coil. In addition, by arranging the terminal accommodating portion on the insulating skeleton, the electrical connection of each coil is realized by the crimping terminal, which avoids superimposing other structures for realizing the same phase electrical connection on the insulating skeleton, thereby reducing the size of the stator as a whole.

[0012] The first direction is the circumferential direction of the stator core.

[0013] Furthermore, the terminal accommodating portion includes an accommodating groove and a glue overflow groove, wherein the accommodating groove is used to accommodate the crimping terminal of the stator, wherein a notch is provided on the accommodating groove, and the wire head and wire tail of the same-phase coil extend into the accommodating groove through the notch on one side of the accommodating groove, which plays a role in positioning the coil and ensuring the stability of the coil. At the same time, the electrical connection of the same-phase coil is realized through the crimping terminal.

[0014] In addition, the glue overflow groove is arranged on at least one of the two sides of the accommodating groove and is connected with the notch. In this way, after the same-phase coils are electrically connected through the wiring terminals, the coils are sealed at the accommodating groove and the notch by sealant, thereby improving the safety performance of the coils. Moreover, due to the setting of the glue overflow groove, in the process of sealing the crimped terminals with sealant, excess sealant will be blocked by the glue overflow groove, so that the sealant will not overflow to the outside of the terminal accommodating part, thereby achieving better sealing of the coil.

[0015] In a specific application, two notches are provided on the receiving groove, and the two notches are respectively provided on two side walls of the receiving groove in the first direction. Similarly, there are two overflowing glue grooves, and the two overflowing glue grooves are respectively provided corresponding to the two notches, so that when sealing is performed at the two notches, the overflowing glue can be prevented from overflowing at both notches through the overflowing glue grooves.

[0016] It can be understood that when sealing the crimp terminal and the cut section of the wire, when using a sealant with low viscosity, the sealant easily flows away along the side wall of the receiving groove, making it difficult to achieve complete sealing of the crimp terminal and the cut section of the wire. When using a sealant with high viscosity, since the fluidity of the sealant is not high and the notch of the receiving groove is relatively narrow, it is difficult to completely cover. Therefore, by providing an overflow groove in this application, it is possible to prevent the sealant from overflowing and achieve complete sealing of the crimp terminal and the cut surface of the coil wire. Moreover, when sealing the tail of the coil wire, good sealing of the tail can be achieved.

[0017] According to the above heating device provided by the present invention, it may further have the following additional technical features:

[0018] In the above technical solution, further, the terminal receiving portion further includes: an overflow platform, along the first direction, the overflow platform is provided on both sides of the receiving groove; a convex platform, provided on the overflow platform, and at least the convex platform and the overflow platform enclose an overflow groove.

[0019] In this technical solution, the terminal receiving portion further includes an overflow platform and a convex platform. The overflow platform is provided on both sides of the receiving groove, that is, there are protruding overflow platforms on both sides of the receiving groove in the first direction. The convex platform is provided on the overflow platform, so that at least the overflow platform and the convex platform enclose an overflow groove, and the overflow groove surrounds at least a part of the notch. Further, when pouring sealant into the receiving groove and the notch for sealing, the excess sealant can flow into the overflow groove, preventing the sealant from overflowing from the terminal receiving portion.

[0020] It can be understood that the crimp terminal pierces the coil, enabling the connection of the coils of the same phase.

[0021] In a specific application, the crimp terminal is a piercing type terminal. Thus, during the process of pressing the crimp terminal towards the coil in the receiving groove, it can pierce the insulating film on the surface of the coil, thereby achieving electrical connection of the coils of the same phase to achieve rapid connection.

[0022] In any of the above technical solutions, further, the convex platform includes: a first convex platform, along the first direction, the first convex platform is provided on the first side of the receiving groove and is located on the side of the notch away from the first bracket; a second convex platform, along the first direction, the second convex platform is provided on the second side of the receiving groove, and the second convex platform, the second bracket, the receiving groove and the overflow platform enclose an overflow groove, and there is a notch between the second convex platform and the receiving groove.

[0023] In this technical solution, the boss includes a first boss and a second boss. The first boss and the second boss are respectively arranged on the glue overflow platforms on both sides of the receiving groove. Among them, the first boss is arranged on the side of the receiving groove away from the terminal receiving part and is located on the side of the groove opening away from the first bracket. In this way, when injecting sealant into the receiving groove and the groove opening, the excess sealant will be blocked by the first boss, preventing the sealant from overflowing. The second boss is arranged on the side of the receiving groove close to the terminal receiving part. Moreover, the second boss, the surface of the second bracket, and the outer side wall surface of the receiving groove enclose a glue overflow groove. Among them, there is an incomplete closure between the end of the second boss and the wall surface of the receiving groove, with a notch, which facilitates the cutting and sealing of the wire tails of the coil.

[0024] In specific applications, a wire groove is provided at the bottom of the first boss. The wire groove is arranged opposite to the groove opening, enabling the coil to be further fixed in the wire groove and enhancing the firmness of the coil.

[0025] In addition, the size of the notch is small to prevent the sealant from flowing out. Specifically, the width of the notch is greater than or equal to 1 mm and less than or equal to 5 mm.

[0026] In any of the above technical solutions, further, the groove opening includes a first channel and a second channel that are connected. The first channel is located at the top of the second channel, and the side walls of the first channel are tapered outward on both sides of the first channel.

[0027] In this technical solution, the groove opening includes a first channel and a second channel that are connected. That is, the groove opening is divided into an upper part and a lower part. Among them, the first channel is located in the upper part, and the second channel is located in the lower part. The upper part and the lower part are connected, and the side walls of the first channel are tapered, facilitating wire passing at the groove opening. At the same time, the inclined setting of the upper part of the groove opening also facilitates the pouring of the sealant, enabling the sealant to flow along the inclined wall surface towards the bottom of the groove opening of the groove opening, enhancing the sealing effect of the sealant on the cross-section of the coil.

[0028] In specific applications, the groove opening is generally U-shaped. The side walls of the first channel are bevel-shaped, and the side walls of the second channel are generally straight.

[0029] In any of the above technical solutions, further, the insulating skeleton further includes: a protruding part, which is arranged on the side of the second bracket facing away from the first bracket, and the protruding part and the terminal receiving part are arranged in sequence along the first direction.

[0030] In this technical solution, the insulating skeleton further includes a protruding part. The protruding part is arranged on the second bracket and is located on the side of the second bracket facing away from the first bracket and the third bracket. The protruding part and the terminal receiving part are arranged in sequence along the first direction. The arrangement of the protruding part can limit the coil and prevent the coil from coming out. Specifically, the arrangement of the protruding part can prevent the wire tail part of the coil from coming out, enhancing the fixation of the coil.

[0031] In a specific application, the stator includes a stator core, an insulating skeleton, and insulating cover plates. The insulating skeleton is disposed at both ends of the stator core, and the insulating cover plates are disposed at both ends of the insulating skeleton away from the stator core. The insulating cover plates play an insulating role and improve the safety performance of the motor. Among them, the convex portions are clamped with the insulating cover plates, so that the insulating skeleton and the insulating cover plates are connected, improving the reliability of the connection between the insulating cover plates and the insulating skeleton.

[0032] It can be understood that both the insulating cover plates and the insulating skeleton are made of insulating materials.

[0033] Specifically, wire grooves are provided on the second bracket, and the convex portions, the wire grooves, and the terminal accommodating portions are arranged in sequence along a first direction. The wire groove includes a bottom wall, and the bottom wall of the wire groove is inclined towards the bottom of the second bracket to form an inclined portion which is inclined. Among them, the inclined portion is located on the side close to the first bracket. In this way, when winding the wire through the insulating skeleton, the coil extends into the wire groove from the side of the wire groove away from the first bracket, and then extends along the inclined portion towards the bottom of the first bracket, thus facilitating the winding of the coil. At the same time, the wire groove can pre-fix the coil, making the winding of the coil more compact, improving the fixing of the coil, and improving the slot filling factor of the stator core.

[0034] In a specific application, the insulating skeleton is applied to the stator. The stator includes a stator core, a coil, and the above-mentioned insulating skeleton. Among them, the insulating skeleton is disposed at both ends in the axial direction of the stator core, and the coil is wound around the insulating skeleton and the stator core. The first bracket, the second bracket, and the third bracket enclose a wire winding accommodating portion for accommodating the coil. The stator core enters the wire through the wire groove, making the coil incline downward along the inclined portion, so that the winding of the coil is tighter.

[0035] It can be understood that the wire groove includes an opening and a bottom wall opposite to the opening. A part of the bottom wall of the wire groove is inclined towards the bottom of the second bracket to form an inclined portion, and the inclined portion is disposed on the side of the wire groove facing the first bracket, that is, the inclined portion is disposed inside the first bracket. That is, the upper half of the wire groove is substantially U-shaped, the opening is located at the top of the U-shape, and the lower half of the wire groove is in a slope shape, so that the coil is more compact when passing the wire, improving the fixing of the coil winding.

[0036] Specifically, when applying the insulating skeleton to the stator, the first bracket is close to the inner side of the stator core, the second bracket is close to the outer side of the stator core, and the third bracket is connected to the first bracket and the second bracket and is located between the two.

[0037] For the segmented iron core, a coil is wound on each segmented iron core. Each coil includes a wire head portion and a wire tail portion. After winding, the wire tail portion extends into the wire groove from the bottom of the convex portion, and the wire groove limits the coil.

[0038] It can be understood that along the first direction, the wire groove includes a first side and a second side, and the first side and the second side of the wire groove are two opposite sides of the wire groove. Among them, the side of the wire groove close to the terminal accommodating part is the first side of the wire groove, and the side of the wire groove close to the convex part is the second side of the wire groove.

[0039] Furthermore, the width of the wire groove is greater than the width of the slot opening.

[0040] In this technical solution, both the head and the tail of the coil wire are arranged in the slot opening, which is convenient for the coil to enter the slot. The width of the wire groove is larger than the width of the slot opening, so that when the head and the tail of the wire enter the slot opening, they are more tightly connected to the slot opening, improving the fixing of the slot opening to the coil.

[0041] In specific applications, the width of the wire groove is the width of the wire groove along the first direction, and the width of the slot opening is the width of the slot opening along the second direction. Specifically, both the wire groove and the slot opening are generally U-shaped, and the width of the wire groove and the width of the slot opening are the distances between the left and right side walls of the U-shape.

[0042] Through the above settings of the widths of the slot opening and the wire groove, on the one hand, the head and the tail of the coil can be accommodated in the slot opening at the same time, and on the other hand, the tightness of the coil can be improved.

[0043] In any of the above technical solutions, further, at least a part of the top wall of the convex part is inclined towards the bottom of the second bracket.

[0044] In this technical solution, at least a part of the top wall of the convex part is inclined towards the bottom of the second bracket. On the one hand, the material used for the convex part is reduced, reducing the production cost. On the other hand, when the insulating skeleton is used in cooperation with other structures, interference with other structures is avoided.

[0045] In specific applications, the cross-section of the convex part is generally triangular.

[0046] In any of the above technical solutions, further, the length by which the terminal accommodating part protrudes from the second bracket is greater than the length by which the convex part protrudes from the second bracket.

[0047] In this technical solution, both the terminal accommodating part and the protruding part protrude from the second bracket towards the side away from the first bracket. Among them, the length by which the protruding part protrudes from the second bracket is shorter than the length by which the terminal accommodating part protrudes from the second bracket. In this way, when the insulating skeleton is connected to the insulating cover plate, interference with the connection between the two is avoided, ensuring the connection reliability between the two.

[0048] It can be understood that the second bracket, the third bracket, and the first bracket are sequentially distributed along the second direction, and the length of the protruding part along the second direction is less than the length of the terminal accommodating part.

[0049] It can be understood that the second direction is the radial direction of the stator core.

[0050] In any of the above technical solutions, further, the surface of the convex portion close to the bottom of the second bracket is located on the side of the bottom wall of the wire groove away from the bottom of the second bracket.

[0051] In this technical solution, the surface of the convex portion close to the bottom of the second bracket is located on the side of the bottom wall of the wire groove away from the bottom of the second bracket. Through the above setting, the surface of the convex portion close to the bottom of the second bracket is higher than the bottom wall of the wire groove, that is, the bottom wall of the wire groove is lower than the lower surface of the convex portion. Furthermore, the wire tail of the coil winds from the side of the convex portion away from the wire groove to the wire groove, which can avoid the coil from being bent at the wire groove, and thus make the wiring of the coil more compact.

[0052] Specifically, the distance difference between the lower surface of the convex portion and the bottom wall of the wire groove is greater than or equal to the diameter of the wire in the coil. It can be understood that a wire is wound around the segmented iron core and the insulating skeleton to form a coil.

[0053] In any of the above technical solutions, further, the insulating skeleton further includes: a stepped portion provided on the second bracket, and the stepped portion is located on the side of the convex portion away from the terminal accommodating portion.

[0054] In this technical solution, the insulating skeleton further includes a stepped portion provided on the second bracket for carrying the coil. Specifically, the stepped portion is used to carry the wire tail of the coil. This improves the tightness of the coil winding.

[0055] Specifically, the stepped portion is provided on the side of the convex portion away from the wire groove. In this way, the wire tail portion of the coil winds from the upper surface of the stepped portion to the lower part of the convex portion and then extends into the wire groove, and the wire tail portion of the coil is fixed through the wire groove.

[0056] In any of the above technical solutions, further, a plurality of auxiliary grooves are provided on the third bracket, any one of the auxiliary grooves extends along the first direction, and the plurality of auxiliary grooves are distributed along the direction from the first bracket to the second bracket, and the first bracket, the third bracket and the second bracket are sequentially distributed along the second direction.

[0057] In this technical solution, auxiliary grooves are provided on the third bracket, and the number of the auxiliary grooves is multiple. The coil is fixed through the auxiliary grooves, which improves the tightness and stability of the coil winding. Among them, each auxiliary groove extends along the first direction, and the plurality of auxiliary grooves are arrayed and distributed along the second direction, and the coil is wound around the insulating skeleton through the auxiliary grooves.

[0058] Specifically, the auxiliary grooves are provided on the upper surface of the third bracket. When the auxiliary grooves extend naturally along the outer surface of the third bracket, they are directly cut flat by the side surface of the third bracket.

[0059] Specifically, the second direction is the radial direction of the stator.

[0060] In any of the above technical solutions, further, the inclined portion is close to the edge of the bottom of the second bracket and is substantially flush with the bottom of the auxiliary groove.

[0061] In this technical solution, the inclined portion is close to the edge of the bottom of the second bracket and is substantially aligned with the bottom of the auxiliary groove, avoiding coil bending and ensuring the tightness of coil winding.

[0062] It can be understood that the edge of the inclined portion close to the bottom of the second bracket is also the lower edge of the inclined portion. The lower edge of the inclined portion is substantially flush with the bottom of the auxiliary groove, that is, the lower edge of the inclined portion is flush with the bottom of the auxiliary groove, or the lower edge of the inclined portion is slightly higher than the bottom of the auxiliary groove.

[0063] In any of the above technical solutions, further, the wall surface of the wire groove close to the terminal accommodating portion is substantially flush with the wall surface of the third bracket close to the wire groove.

[0064] In this technical solution, the wall surface of the wire groove close to the terminal accommodating portion is substantially flush with the wall surface of the third bracket close to the wire groove. In this way, when the coil is wound from the wire groove to the third bracket, the coil can be wound more tightly, improving the slot filling factor of the stator core.

[0065] It can be understood that the wall surface of the wire groove close to the terminal accommodating portion is substantially flush with the wall surface of the third bracket close to the wire groove, that is, the wall surface of the wire groove close to the accommodating portion is flush with the wall surface of the third bracket close to the wire groove, or there is a small gap between the wall surface of the wire groove close to the accommodating portion and the wall surface of the third bracket close to the wire groove.

[0066] In any of the above technical solutions, further, a notch is provided on the side of the first bracket facing the second bracket. The notch is provided close to the bottom of the first bracket and, along the first direction, is located on both sides of the third bracket.

[0067] In this technical solution, a notch is provided on the first bracket. The notch is located inside the first bracket and can avoid the winding of the coil, ensuring the tightness of coil winding.

[0068] Specifically, the notch is located on the side of the first bracket facing the second bracket and is provided close to the bottom of the first bracket. Further, along the first direction, the notch is provided on both sides of the third bracket, thereby not only reducing the overall weight of the insulating skeleton and the production cost, but also avoiding excessive extrusion of the coil by the third bracket and affecting the winding of the coil.

[0069] In a specific application, the wall surface of the first bracket facing the second bracket is an approximate plane, and the wall surface of the first bracket away from the second bracket is arc-shaped. When the insulating skeleton is applied to the stator, the first bracket can be enclosed into a circle to adapt to the shape of the tooth part of the stator, thereby facilitating the installation and movement of the rotor. At the same time, due to the setting of the notch, the shape of the first bracket can be adapted to the end of the tooth part of the stator facing the inside of the stator, increasing the slot fill factor of the stator and making the overall connection tighter.

[0070] Specifically, the notch is a flat but non-penetrating structure.

[0071] In any of the above technical solutions, further, the side of the notch close to the top of the first bracket is flush with the top of the auxiliary slot.

[0072] In this technical solution, the side of the notch close to the top of the first bracket is flush with the side of the top of the auxiliary slot, thereby ensuring the avoidance effect of the notch on the coil and increasing the slot fill factor of the stator.

[0073] In any of the above technical solutions, further, the insulating skeleton further includes: a mark provided on at least one of the second bracket and the first bracket, and the mark corresponds to the width of the slot opening and the width of the auxiliary slot of the third bracket.

[0074] In this technical solution, the insulating skeleton further includes a mark, and the mark is provided on at least one of the second bracket and the first bracket. It can be understood that when winding different stators, different coil diameters will be corresponding, and thus different widths of the auxiliary slots and different widths of the slot openings will be corresponding. That is, the diameter of the coil is in one-to-one correspondence with the width of the slot opening and the width of the auxiliary slot. Therefore, the diameter of the coil changes synchronously with the width of the slot opening and the width of the auxiliary slot. Therefore, the technical solution proposed in this application sets a mark on the insulating skeleton, and the mark is in one-to-one correspondence with the diameter of the coil, the width of the slot opening, and the width of the auxiliary slot. In this way, different insulating skeletons can be selected according to different coil diameters based on the mark. Specifically, different insulating skeletons correspond to different widths of the slot opening and the auxiliary slot, so that insulating skeletons of multiple size specifications can adapt to coils of different sizes.

[0075] Specifically, the width of the slot opening and the width of the yoke of the auxiliary slot have multiple sizes and can be selected according to the actual situation.

[0076] Specifically, the mark can be a number, a letter, or a symbol with the same function.

[0077] In a specific application, the mark is provided on the terminal receiving part of the second bracket. Further, the mark is provided on the top of the terminal receiving part for easy identification by the user.

[0078] According to a second aspect of the present invention, a stator is further provided, comprising: a crimp terminal disposed in a receiving groove; a stator core including a plurality of segmented cores connected in sequence, each segmented core including a tooth portion, and the tooth portions of two adjacent segmented cores enclosing a stator slot; and an insulating skeleton as proposed in any one of the first aspects, the number of insulating skeletons being a plurality, insulating skeletons being provided at both ends of any one segmented core, and the third bracket being disposed opposite to the tooth portion; and a winding wound around the tooth portion and the insulating skeleton.

[0079] The stator provided by the second aspect of the present invention includes the insulating skeleton proposed in any of the above technical solutions, and thus has all the beneficial effects of the insulating skeleton.

[0080] Further, the stator includes a stator core, the stator core including a plurality of segmented cores connected in sequence, each segmented core including a tooth portion, and a stator slot being formed between the tooth portions of two adjacent segmented cores for receiving the winding. Insulating skeletons are provided at both ends of each segmented core, so that the winding can be wound around the tooth portion and the insulating skeleton, ensuring the insulation performance. At the same time, this winding method enables the electrical connection of the same-phase windings on the insulating skeleton without the need to stack other structures for electrical connection, thereby reducing the axial height of the stator and making the end portion of the stator more compact. Among them, the crimp terminal realizes the connection of the same-phase windings in the receiving groove.

[0081] Further, the winding includes a plurality of coils. One coil is wound around one segmented core and the insulating skeletons at both ends of the segmented core. The coil includes a lead head and a lead tail, and the wire groove is used for receiving the lead head and the lead tail.

[0082] In this technical solution, the winding includes a plurality of coils. One segmented core and the insulating skeletons at both ends thereof form a core assembly. One coil is wound around each core assembly. After each coil is wound, the plurality of core assemblies are combined into a circle to form a stator, thereby improving the slot fill factor and avoiding scratching the insulating layer on the surface of the coil.

[0083] Among them, the coil includes a lead head and a lead tail, and the wire groove is used for receiving the lead head and the lead tail to ensure the tightness of the coil winding.

[0084] Specifically, the wire head is stuck in the wire slot at one end of the stator core in the axial direction, and then extends to the other end of the stator core, and is wound from the side of the insulating frame away from the wire slot, so that the wire tail is located on the side of the insulating frame close to the wire slot, and then the wire tail is wound to the step portion, through the upper surface of the step portion to the bottom of the protrusion, and then extends into the wire slot, and is pre-fixed in the wire slot. When all the coils are wound, multiple block cores are combined into a circle to form a stator. Compared with the prior art, the technical solution proposed in this application can not only improve the slot filling rate of the stator, but also avoid damage to the insulation layer of the coil itself.

[0085] In any of the above technical solutions, further, the stator also includes: an insulating cover plate, which is arranged on both sides of the insulating frame, and the insulating cover plate is provided with an avoidance groove, and the avoidance groove is arranged corresponding to the mark on the insulating frame for avoiding the mark.

[0086] In this technical solution, the stator also includes an insulating cover plate, and an avoidance groove is provided on the insulating cover plate for avoiding the mark on the insulating frame.

[0087] Furthermore, the stator further comprises: an insulating cover plate, which is arranged on a side of the insulating frame away from the stator core, and the insulating cover plate is clamped with a raised portion of the insulating frame.

[0088] In this technical solution, the insulating frame also includes an insulating cover plate, which is arranged on the side of the insulating frame away from the stator core. Through the arrangement of the insulating frame, the curling protection of the two ends of the coil can be achieved, thereby improving the safety performance of the stator. The insulating cover plate is connected to the raised portion of the insulating frame, thereby fixing the insulating cover plate, making the overall structure of the stator more compact and achieving effective locking of the two.

[0089] Furthermore, the insulating cover plate is snap-fitted with the raised portion of the insulating frame.

[0090] In a specific application, a buckle is provided on the insulating cover plate, and the buckle is engaged with the protrusion. It can be understood that the length of the protrusion is shorter than the length of the terminal accommodating portion, so the engagement between the buckle and the protrusion is guaranteed.

[0091] Furthermore, any segmented core includes a plurality of punching sheets, and the plurality of punching sheets are stacked and distributed along the axial direction of the stator core.

[0092] In this technical solution, each segmented iron core is provided with a plurality of punching sheets, and the plurality of punching sheets are stacked and distributed along the axial direction of the stator iron core, so that overlapping portions are formed at the peripheral edges of the punching sheets. When the plurality of punching sheets are stacked and distributed along the axial direction of the iron core, overlapping gaps are defined between adjacent punching sheets and are formed in stator slots, so as to facilitate winding around the teeth of the stator iron core and being located in the stator slots.

[0093] Specifically, the punching sheets are silicon steel sheets.

[0094] Furthermore, two adjacent segmented iron cores are rotationally connected through an overlapping portion.

[0095] In this technical solution, two adjacent segmented iron cores are rotationally connected through an overlapping portion, that is, the two connected segmented iron cores can rotate relative to each other.

[0096] By making two adjacent segmented iron cores rotationally connected through an overlapping portion, one segmented iron core can rotate around the other segmented iron core with the connection point of the overlapping portion as the center of the circle. This connection method is simple and reliable, facilitating the operator to adjust the shape and structure of the stator iron core, and the position of the segmented iron core can be adjusted according to the usage requirements.

[0097] In the above technical solution, further, the stator iron core includes tooth portions and yoke portions, and the stator iron core has at least a first state and a second state; in the first state, multiple segmented iron cores form a first ring, and the tooth portions are located inside the yoke portions; in the second state, multiple segmented iron cores are unfolded to be substantially linear.

[0098] In this technical solution, the stator iron core has a first state, which is the conventional state after the stator iron core is wound with a winding. In the first state, multiple segmented iron cores form a first ring, and the tooth portions are located inside the yoke portions. In this state, the winding is wound in the stator slots formed by adjacent tooth portions, the winding is close to the inner side of the stator iron core, and two adjacent stator iron cores are rotationally connected through the overlapping portions provided on the outer yoke portions, and jointly enclose a circular stator iron core.

[0099] The stator iron core also has a second state. Since two adjacent segmented iron cores are rotationally connected, when two adjacent segmented iron cores in the stator iron core move relative to each other, multiple segmented iron cores can be unfolded to be substantially linear. The tooth portions of each unfolded segmented iron core are substantially linearly distributed, and since the stator iron core is in the unfolded state, compared with the first state, the space of the stator slot between two tooth portions is increased, facilitating the operator to wind the winding.

[0100] By making the stator iron core in the second state, the tooth portions can be substantially linearly distributed, and the space of the stator slot can be increased, facilitating the operator to wind the winding. After completing the operation of winding the winding, the stator iron core is enclosed into the first state, and each segmented iron core encloses a circular stator iron core to make the structure of the stator iron core stable and reliable.

[0101] Furthermore, in the second state, the two segmented iron cores at both ends are connected together after being formed into a circle. Specifically, the two segmented iron cores can be welded after being formed into a circle.

[0102] It can be understood that in the second state, the stator iron core is substantially linear, including that the stator iron core is linear or the stator iron core has a certain curvature.

[0103] In the above technical solution, further, the multiple punching sheets include first punching sheet layers and second punching sheet layers which are alternately arranged; an overlapping portion is arranged on a first side of the first punching sheet layer, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer, and an overlapping gap is defined between two adjacent first punching sheet layers; an overlapping portion is arranged on a second side of the second punching sheet layer, and the overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer, and an overlapping gap is defined between two adjacent second punching sheet layers; in two adjacent segmented iron cores, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core.

[0104] In this technical solution, the multiple punching sheets include a first punching sheet layer and a second punching sheet layer, and the multiple first punching sheets and the multiple second punching sheets are alternately distributed along the axial direction of the stator iron core. The first punching sheet layer is provided with an overlapping portion on a first side, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer. Since the multiple first punching sheet layers and the multiple second punching sheet layers are alternately arranged, the two adjacent first punching sheet layers both protrude from the second punching sheet layer disposed therebetween, so that an overlapping gap is defined between the two adjacent first punching sheet layers. The second punching sheet layer is provided with an overlapping portion on a second side, that is, the second punching sheet layer is provided with an overlapping portion on a side different from the first punching sheet layer. The overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer. Since the multiple first punching sheet layers and the multiple second punching sheet layers are alternately arranged, the two adjacent second punching sheet layers both protrude from the first punching sheet layer disposed therebetween, so that an overlapping gap can also be defined between the two adjacent second punching sheet layers.

[0105] It can be understood that when the multiple first punching sheet layers and the multiple second punching sheet layers are alternately distributed along the circumferential direction of the stator iron core, the overlapping portions provided on the first side of the multiple first punching sheet layers and the overlapping portions provided on the second side of the multiple second punching sheet layers are arranged in a staggered manner. Further, the overlapping gap between two adjacent first punching sheet layers and the overlapping gap between two adjacent second punching sheet layers are respectively located on two sides of the segmented iron core and are arranged in a staggered manner.

[0106] On one side of two adjacent segmented iron cores close to each other, an overlapping portion and an overlapping gap are respectively provided. Since the overlapping portions provided on the first side of the multiple first punching sheet layers and the overlapping portions provided on the second side of the multiple second punching sheet layers are arranged in a staggered manner, and the overlapping gap between two adjacent first punching sheet layers and the overlapping gap between two adjacent second punching sheet layers are arranged in a staggered manner, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core, thereby realizing the connection between two adjacent segmented iron cores.

[0107] By alternately arranging the first punching sheet layer and the second punching sheet layer, overlapping portions are respectively arranged on different sides of the first punching sheet layer and the second punching sheet layer, and the first punching sheet layer and the second punching sheet layer enclose an overlapping gap on different sides, so that two adjacent segmented iron cores can be connected through the overlapping portions and the overlapping gap. Specifically, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core. This connection method is stable and reliable, and the operator can quickly disassemble and assemble the stator iron core, improving work efficiency. Moreover, the same structure can be used for multiple segmented iron cores to achieve mutual connection, reducing the variety of segmented iron cores, improving the versatility of the segmented iron cores, and reducing product costs.

[0108] In the above technical solution, further, a plurality of punching sheets include a first punching sheet layer and a second punching sheet layer arranged alternately; an overlapping portion is arranged on a first side of the first punching sheet layer, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer, and overlapping gaps are enclosed by two adjacent first punching sheet layers; an overlapping portion is arranged on a second side of the second punching sheet layer, and the overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer, and overlapping gaps are enclosed by two adjacent second punching sheet layers; in two adjacent segmented iron cores, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core.

[0109] In this technical solution, a plurality of punching sheets include a first punching sheet layer and a second punching sheet layer, and a plurality of first punching sheets and a plurality of second punching sheets are alternately distributed along the axial direction of the stator iron core. The first punching sheet layer is provided with an overlapping portion on the first side, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer. Since a plurality of first punching sheet layers and a plurality of second punching sheet layers are alternately arranged, two adjacent first punching sheet layers both protrude from the second punching sheet layer arranged between the two adjacent first punching sheet layers, so that an overlapping gap is enclosed between the two adjacent first punching sheet layers. The second punching sheet layer is provided with an overlapping portion on the second side, that is, the second punching sheet layer is provided with an overlapping portion on a side different from the first punching sheet layer. The overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer. Since a plurality of first punching sheet layers and a plurality of second punching sheet layers are alternately arranged, two adjacent second punching sheet layers both protrude from the first punching sheet layer arranged between the two adjacent second punching sheet layers, so that an overlapping gap can also be enclosed between the two adjacent second punching sheet layers.

[0110] It can be understood that when a plurality of first punching sheet layers and a plurality of second punching sheet layers are alternately distributed along the circumferential direction of the stator iron core, the overlapping portions arranged on the first side of the plurality of first punching sheet layers and the overlapping portions arranged on the second side of the plurality of second punching sheet layers are arranged alternately. Further, the overlapping gaps located between two adjacent first punching sheet layers and the overlapping gaps located between two adjacent second punching sheet layers are respectively located on both sides of the segmented iron core and are arranged alternately.

[0111] On one side of two adjacent segmented iron cores that are adjacent to each other, there are respectively an overlapping portion and an overlapping gap. Since multiple first lamination layers are arranged in an interleaved manner with multiple second lamination layers at the overlapping portion on the first side, and the overlapping gaps between adjacent two first lamination layers are arranged in an interleaved manner with the overlapping gaps between adjacent two second lamination layers, the overlapping portion of one segmented iron core is inserted into the overlapping gap of another segmented iron core, thereby realizing the connection of two adjacent segmented iron cores.

[0112] By alternately arranging the first lamination layers and the second lamination layers, arranging overlapping portions on different sides of the first lamination layers and the second lamination layers respectively, and enclosing overlapping gaps on different sides of the first lamination layers and the second lamination layers, the connection of two adjacent segmented iron cores can be realized through the overlapping portions and the overlapping gaps. Specifically, the overlapping portion of one segmented iron core is inserted into the overlapping gap of another segmented iron core. This connection method is stable and reliable, and the operator can quickly disassemble and assemble the stator core, improving work efficiency. And by using the same structure for multiple segmented iron cores, their mutual connection can be realized, reducing the variety of segmented iron cores, improving the versatility of the segmented iron cores, and reducing the product cost.

[0113] In any of the above technical solutions, further, a connecting protrusion is provided at the bottom of the second bracket, and a groove is provided on the stator core, and the connecting protrusion is connected to the groove.

[0114] In this technical solution, the second bracket has a connecting protrusion for cooperating with the stator core to fix the insulating skeleton on the stator core.

[0115] According to the third aspect of the present invention, there is also provided a motor, including: a stator as proposed in the second aspect; a rotor, which cooperates with the stator and rotates.

[0116] The motor provided by the third aspect of the present invention includes the stator proposed in the first aspect, so it has all the beneficial effects of the stator.

[0117] In addition, the motor further includes a rotor, which is arranged inside the stator and can cooperate with the stator to rotate, and then output torque.

[0118] According to the fourth aspect of the present invention, there is also provided a compressor, including: a motor as proposed in the third aspect.

[0119] The compressor provided by the fourth aspect of the present invention includes the motor proposed in the third aspect, so it has all the beneficial effects of the motor.

[0120] According to the fifth aspect of the present invention, there is also provided a vehicle, including: a compressor as proposed in the fourth aspect.

[0121] The vehicle provided by the fifth aspect of the present invention includes the compressor proposed in the above fourth aspect, and thus has all the beneficial effects of the compressor.

[0122] The additional aspects and advantages of the present invention will become apparent in the following description section, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0123] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0124] Figure 1 FIG. 1 shows one of the schematic structural diagrams of the insulating skeleton according to an embodiment of the present invention;

[0125] Figure 2 FIG. 2 shows another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0126] Figure 3 FIG. 3 shows yet another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0127] Figure 4 FIG. 4 shows still another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0128] Figure 5 FIG. 5 shows yet another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0129] Figure 6 FIG. 6 shows still another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0130] Figure 7 FIG. 7 shows yet another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0131] Figure 8 FIG. 8 shows still another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0132] Figure 9 FIG. 9 shows yet another schematic structural diagram of the insulating skeleton according to an embodiment of the present invention;

[0133] Figure 10 FIG. 10 shows one of the schematic structural diagrams of the stator according to an embodiment of the present invention;

[0134] Figure 11 FIG. 11 shows another schematic structural diagram of the stator according to an embodiment of the present invention;

[0135] Figure 12 FIG. 12 shows the schematic structural diagram of the insulating cover plate according to an embodiment of the present invention.

[0136] Wherein, Figures 1 to 12The corresponding relationship between the reference signs in the drawings and the component names is as follows:

[0137] 1 First bracket, 10 Notch, 2 Second bracket, 20 Wiring groove, 22 Inclined part, 24 Terminal accommodating part, 240 Accommodating groove, 2400 Notch, 2402 First channel, 2404 Second channel, 242 Glue overflow groove, 244 Glue overflow table, 246 Boss, 2460 First boss, 2462 Second boss, 26 Protruding part, 27 Connecting protrusion, 28 Step part, 29 Mark, 3 Third bracket, 30 Auxiliary groove, 4 Stator core, 5 Winding, 6 Insulating cover plate, 60 Snap fastener. Detailed implementation manners

[0138] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0139] Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0140] Next, refer to Figures 1 to 12 Describe an insulating skeleton, a stator, a motor, a compressor and a vehicle according to some embodiments of the present invention.

[0141] Embodiment 1:

[0142] As Figure 1 and Figure 2 shown, according to an embodiment of the first aspect of the present invention, the present invention provides an insulating skeleton, including: a first bracket 1, a second bracket 2 and a third bracket 3.

[0143] Specifically, the second bracket 2 is disposed opposite to the first bracket 1, and a terminal accommodating part 24 is provided on a side of the second bracket 2 facing away from the first bracket 1. The terminal accommodating part 24 includes an accommodating groove 240 and a glue overflow groove 242. Among them, the accommodating groove 240 is used for accommodating a crimp terminal, and notches 2400 are provided on opposite side walls of the accommodating groove 240 along a first direction; along the first direction, the glue overflow groove 242 is located on at least one side of the accommodating groove 240, and the glue overflow groove 242 communicates with the notch 2400; the third bracket 3 is located between the first bracket 1 and the second bracket 2 and is connected to the first bracket 1 and the second bracket 2.

[0144] The insulating skeleton provided by the present invention includes a first bracket 1, a second bracket 2, and a third bracket 3. The second bracket 2 and the first bracket 1 are arranged relatively. The third bracket 3 is disposed between the first bracket 1 and the second bracket 2, and one end of the third bracket 3 is connected to the first bracket 1, and the other end of the third bracket 3 is connected to the second bracket 2, so that the first bracket 1, the second bracket 2, and the third bracket 3 are connected as a whole. Among them, the insulating skeleton further includes a terminal accommodating portion 24. The terminal accommodating portion 24 is provided on the second bracket 2. The crimping terminal is disposed in the terminal accommodating portion 24. The coils of the same phase are connected in the terminal accommodating portion 24 through the crimping terminal, so that the coils of the same phase are connected in series. Among them, the terminal accommodating portion 24 is provided on the side of the second bracket 2 facing away from the first bracket 1, thereby avoiding occupying the space for winding the coil. At the same time, the terminal accommodating portion 24 and the wire groove 20 are distributed in the first direction, which is convenient for winding the coil and connecting the coils of the same phase in series. In addition, by providing the terminal accommodating portion on the insulating skeleton, other structures for realizing the same-phase electrical connection are avoided from being stacked above the insulating skeleton, thereby reducing the overall size of the stator.

[0145] Among them, the first direction is the circumferential direction of the stator core 4.

[0146] Further, as Figure 1 and Figure 3 shown, the terminal accommodating portion 24 includes a receiving groove 240 and an overflow groove 242. The receiving groove 240 is used to accommodate the crimping terminal of the stator. Among them, a notch 2400 is provided on the receiving groove 240. The head and tail of the wire of the coils of the same phase extend into the receiving groove 240 from the notch 2400 on one side of the receiving groove 240, which plays a role in positioning the coil, ensuring the stability of the coil, and at the same time realizing the electrical connection of the coils of the same phase through the crimping terminal.

[0147] In addition, the overflow groove 242 is provided on at least one of the two sides of the receiving groove 240 and is communicated with the notch 2400. In this way, after the coils of the same phase are electrically connected through the wiring terminal, the coils are sealed with sealant at the receiving groove 240 and the notch 2400, improving the safety performance of the coils. And, due to the setting of the overflow groove 242, during the process of sealing the crimping terminal with sealant, the excess sealant will be blocked by the overflow groove 242, so that the sealant will not overflow to the outside of the terminal accommodating portion 24, realizing a good seal for the coils.

[0148] In a specific application, two notches 2400 are provided on the receiving groove 240, and the two notches 2400 are respectively provided on the two side walls of the receiving groove 240 in the first direction. Similarly, the number of the overflow grooves 242 is two, and the two overflow grooves 242 are respectively arranged corresponding to the two notches 2400, so that when sealing at the two notches 2400, the sealant can be prevented from overflowing at the two notches 2400 through the overflow grooves 242.

[0149] It can be understood that when sealing the crimp terminal and the cut section of the wire, when using a sealant with low viscosity, the sealant easily flows away along the side wall of the receiving groove 240, making it difficult to achieve complete sealing of the crimp terminal and the cut section of the wire. When using a sealant with high viscosity, since the fluidity of the sealant is not high and the notch 2400 of the receiving groove 240 is relatively narrow, it is difficult to completely cover. Therefore, by providing the overflow groove 242 in this application, it is possible to prevent the sealant from overflowing and achieve complete sealing of the crimp terminal and the cut surface of the coil wire. Moreover, when sealing the tail of the coil wire, good sealing of the tail can be achieved.

[0150] Embodiment Two:

[0151] As Figure 2 and Figure 3 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The terminal receiving portion 24 further includes: an overflow platform 244, which is provided on both sides of the receiving groove 240 along the first direction; a convex platform 246, which is provided on the overflow platform 244, and at least the convex platform 246 and the overflow platform 244 enclose the overflow groove 242.

[0152] In this embodiment, the terminal receiving portion 24 further includes an overflow platform 244 and a convex platform 246. The overflow platform 244 is provided on both sides of the receiving groove 240, that is, there are protruding overflow platforms 244 on both sides of the receiving groove 240 in the first direction. The convex platform 246 is provided on the overflow platform 244, such that at least the overflow platform 244 and the convex platform 246 enclose the overflow groove 242, so that the overflow groove 242 surrounds at least a part of the notch 2400. Then, when pouring the sealant into the receiving groove 240 and the notch 2400 for sealing, the excess sealant can flow into the overflow groove 242 to prevent the sealant from overflowing from the terminal receiving portion 24.

[0153] It can be understood that the crimp terminal pierces the coil, enabling the connection of the in-phase coils.

[0154] In a specific application, the crimp terminal is a piercing type terminal. Thus, during the process of the crimp terminal pressing towards the coil in the receiving groove 240, it can pierce the insulating film on the surface of the coil, thereby realizing the electrical connection of the in-phase coils to achieve rapid connection.

[0155] Embodiment Three:

[0156] As Figure 1 and Figure 3As shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The boss 246 includes: a first boss 2460, along the first direction, the first boss 2460 is disposed on the first side of the receiving groove 240 and is located on the side of the notch 2400 away from the first bracket 1; a second boss 2462, along the first direction, the second boss 2462 is disposed on the second side of the receiving groove 240, and the second boss 2462, the second bracket 2, the receiving groove 240 and the overflow glue table 244 enclose an overflow glue groove 242, and there is a notch between the second boss 2462 and the receiving groove 240.

[0157] In this embodiment, the boss 246 includes a first boss 2460 and a second boss 2462. The first boss 2460 and the second boss 2462 are respectively disposed on the overflow glue tables 244 on both sides of the receiving groove 240. Among them, the first boss 2460 is disposed on the side of the receiving groove 240 away from the terminal receiving portion 24 and is located on the side of the notch 2400 away from the first bracket 1. In this way, when injecting the sealant into the receiving groove 240 and the notch 2400, the excess sealant will be blocked by the first boss 2460, preventing the sealant from overflowing. The second boss 2462 is disposed on the side of the receiving groove 240 close to the terminal receiving portion 24. Moreover, the second boss 2462, the surface of the second bracket 2, and the outer wall surface of the receiving groove 240 enclose an overflow glue groove 242. Among them, the end of the second boss 2462 and the wall surface of the receiving groove 240 are not completely closed and have a notch, thus facilitating the cutting and sealing of the wire tails of the coil.

[0158] In specific applications, a wire groove 20 is provided at the bottom of the first boss 2460. The wire groove 20 is disposed opposite to the notch 2400, so that the coil can be further fixed in the wire groove 20, improving the firmness of the coil.

[0159] In addition, the size of the notch is small to prevent the sealant from flowing out. Specifically, the width of the notch is greater than or equal to 1 mm and less than or equal to 5 mm.

[0160] Embodiment Four:

[0161] As Figure 1 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The notch 2400 includes a first channel 2402 and a second channel 2404 that are connected and communicate with each other. The first channel 2402 is located at the top of the second channel 2404, and the side walls of the first channel 2402 are tapered outward on both sides of the first channel 2402.

[0162] In this embodiment, the notch 2400 includes a first channel 2402 and a second channel 2404 that are in communication with each other. That is, the notch 2400 is divided into an upper half and a lower half. Among them, the first channel 2402 is located in the upper half, and the second channel 2404 is located in the lower half. The upper half and the lower half are in communication with each other, and the side wall of the first channel 2402 is gradually expanded, so that it is convenient for wires to pass through at the notch 2400. At the same time, the inclined setting of the upper half of the notch 2400 can also facilitate the pouring of the sealant, so that the sealant can flow along the inclined wall surface to the bottom part of the notch 2400, improving the sealing effect of the sealant on the coil cross-section.

[0163] In specific applications, the notch 2400 is generally U-shaped, the side wall of the first channel 2402 is bevel-shaped, and the side wall of the second channel 2404 is generally straight.

[0164] Embodiment Five:

[0165] As Figure 4 、 Figure 5 and Figure 6 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The insulating skeleton further includes: a convex portion 26, which is provided on the side of the second bracket 2 facing away from the first bracket 1, and the convex portion 26 and the terminal accommodating portion are arranged in sequence along the first direction.

[0166] In this embodiment, the insulating skeleton further includes a convex portion 26. The convex portion 26 is provided on the second bracket 2 and is located on the side of the second bracket 2 facing away from the first bracket 1 and the third bracket 3. The convex portion 26 and the terminal accommodating portion 24 are arranged in sequence along the first direction. The setting of the convex portion 26 can limit the coil of the coil and prevent the coil from coming out. Specifically, the setting of the convex portion 26 can prevent the wire tail of the coil from coming out, improving the fixing property of the coil.

[0167] In specific applications, the stator includes a stator core 4, an insulating skeleton, and an insulating cover plate 6. The insulating skeleton is arranged at both ends of the stator core 4, and the insulating cover plate 6 is arranged at both ends of the insulating skeleton away from the stator core 4. The insulating cover plate 6 plays an insulating role and improves the safety performance of the motor. Among them, the convex portion 26 is engaged with the insulating cover plate 6, so that the insulating skeleton and the insulating cover plate 6 are connected, improving the connection reliability between the insulating cover plate 6 and the insulating skeleton.

[0168] It can be understood that both the insulating cover plate 6 and the insulating skeleton are made of insulating materials.

[0169] Specifically, a wire groove 20 is provided on the second bracket 2, and the protrusion 26, the wire groove 20 and the terminal accommodating portion 24 are sequentially arranged along the first direction. The wire groove 20 includes a bottom wall, and the bottom wall of the wire groove 20 is inclined toward the bottom of the second bracket 2 to form an inclined portion 22, wherein the inclined portion 22 is located on a side close to the first bracket 1, so that when winding the wire through the insulating skeleton, the coil extends into the wire groove 20 from the side of the wire groove 20 away from the first bracket 1, and then extends toward the bottom of the first bracket 1 along the inclined portion 22, thereby facilitating the winding of the coil. At the same time, the wire groove 20 can pre-fix the coil, making the winding of the coil more compact, improving the fixity of the coil, and improving the slot full rate of the stator core 4.

[0170] In a specific application, the insulating frame is applied to the stator, which includes a stator core 4, a coil and the insulating frame, wherein the insulating frame is arranged at both ends of the axial direction of the stator core 4, and the coil is wound on the insulating frame and the stator core 4. The first bracket 1, the second bracket 2 and the third bracket 3 enclose a winding accommodating portion for accommodating the coil, and the stator core 4 is fed with wires through the wire slots 20, so that the coil is tilted downward along the inclined portion 22, so that the coil is wound more tightly.

[0171] It can be understood that the wire slot 20 includes an opening and a bottom wall arranged opposite to the opening, a portion of the bottom wall of the wire slot 20 is inclined toward the bottom direction of the second bracket 2 to form an inclined portion 22, and the inclined portion 22 is arranged on the side of the wire slot 20 facing the first bracket 1, that is, the inclined portion 22 is arranged on the inner side of the first bracket 1. That is, the upper half of the wire slot 20 is roughly U-shaped, the opening is located at the top of the U-shape, and the lower half of the wire slot 20 is sloped, so that the coil is more compact when passing the wire, and the fixity of the coil winding is improved.

[0172] Specifically, when the insulating frame is applied to the stator, the first bracket 1 is close to the inner side of the stator core 4, the second bracket 2 is close to the outer side of the stator core 4, and the third bracket 3 is connected to the first bracket 1 and the second bracket 2 and is located therebetween.

[0173] For the segmented cores, each segmented core is wound with a coil, and each coil includes a wire head and a wire tail. After winding, the wire tail extends from the bottom of the protrusion 26 into the wire slot 20, and the coil is limited by the wire slot 20.

[0174] It can be understood that along the first direction, the wire groove 20 includes a first side and a second side, and the first side of the wire groove 20 and the second side of the wire groove 20 are two sides of the wire groove 20 that are relatively arranged, wherein the side of the wire groove 20 close to the terminal accommodating portion 24 is the first side of the wire groove 20, and the side of the wire groove 20 close to the protrusion 26 is the second side of the wire groove 20.

[0175] Furthermore, the width of the wire groove 20 is greater than the width of the notch 2400 .

[0176] In this embodiment, both the head and the tail of the coil are arranged in the notch 2400, which facilitates the insertion of the coil into the slot. The width of the wire slot 20 is larger than the width of the notch 2400, so that when the head and the tail of the wire enter the notch 2400, they are more tightly connected to the notch 2400, improving the fixing of the notch 2400 to the coil.

[0177] In a specific application, the width of the wire slot 20 is the width of the wire slot 20 along the first direction, and the width of the notch 2400 is the width of the notch 2400 along the second direction. Specifically, both the wire slot 20 and the notch 2400 are generally U-shaped, and the width of the wire slot 20 and the width of the notch 2400 are the distances between the left and right side walls of the U-shape.

[0178] Through the above settings of the widths of the notch 2400 and the wire slot 20, on the one hand, the head and the tail of the coil can be accommodated in the notch 2400 at the same time, and on the other hand, the tightness of the coil can be improved.

[0179] Embodiment Six:

[0180] As Figures 4 to 7 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: at least a part of the top wall of the protrusion 26 is inclined towards the bottom of the second bracket 2.

[0181] In this embodiment, at least a part of the top wall of the protrusion 26 is inclined towards the bottom of the second bracket 2. On the one hand, the material used for the protrusion 26 is reduced, reducing the production cost. On the other hand, when the insulating skeleton is used in cooperation with other structures, interference with other structures is avoided.

[0182] In a specific application, the cross-section of the protrusion 26 is generally triangular.

[0183] Embodiment Seven:

[0184] According to an embodiment of the present invention, on the basis of the above embodiment, further: the length by which the terminal accommodation part 24 protrudes from the second bracket 2 is greater than the length by which the protrusion 26 protrudes from the second bracket 2.

[0185] In this embodiment, both the terminal accommodation part 24 and the protruding part protrude from the second bracket 2 towards the side away from the first bracket 1. Among them, the length by which the protruding part protrudes from the second bracket 2 is shorter than the length by which the terminal accommodation part 24 protrudes from the second bracket 2. In this way, when the insulating skeleton is connected to the insulating cover plate 6, interference with the connection between the two is avoided, ensuring the connection reliability between the two.

[0186] It can be understood that the second bracket 2, the third bracket 3 and the first bracket 1 are sequentially distributed along the second direction, and the length of the protruding portion along the second direction is less than the length of the terminal accommodating portion 24.

[0187] It can be understood that the second direction is the radial direction of the stator core 4.

[0188] Embodiment Eight:

[0189] According to an embodiment of the present invention, on the basis of the above embodiment, further: the surface of the protruding portion 26 close to the bottom of the second bracket 2 is located on the side of the bottom wall of the wire groove 20 away from the bottom of the second bracket 2.

[0190] In this embodiment, the surface of the protruding portion 26 close to the bottom of the second bracket 2 is located on the side of the bottom wall of the wire groove 20 away from the bottom of the second bracket 2. Through the above setting, the surface of the protruding portion 26 close to the bottom of the second bracket 2 is higher than the bottom wall of the wire groove 20, that is, the bottom wall of the wire groove 20 is lower than the lower surface of the protruding portion 26. Furthermore, the wire tail of the coil winds from the side of the protruding portion 26 away from the wire groove 20 to the wire groove 20, which can avoid the coil from being bent at the wire groove 20, and thus make the wiring of the coil tighter.

[0191] Specifically, the difference in distance between the lower surface of the protruding portion 26 and the bottom wall of the wire groove 20 is greater than or equal to the diameter of the wire in the coil. It can be understood that a wire is wound around the segmented iron core and the insulating skeleton to form a coil.

[0192] Embodiment Nine:

[0193] As Figure 5 and Figure 9 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: the insulating skeleton further includes: a step portion 28, which is provided on the second bracket 2, and the step portion 28 is located on the side of the protruding portion 26 away from the terminal accommodating portion 24.

[0194] In this embodiment, the insulating skeleton further includes a step portion 28, and the step portion 28 is provided on the second bracket 2 for carrying the coil. Specifically, the step portion 28 is used for carrying the wire tail of the coil. The tightness of the coil winding is improved.

[0195] Specifically, the step portion 28 is provided on the side of the protruding portion 26 away from the wire groove 20. In this way, the wire tail portion of the coil winds from the upper surface of the step portion 28 to the lower part of the protruding portion 26, and then extends into the wire groove 20, and the wire tail portion of the coil is fixed through the wire groove 20.

[0196] Embodiment Ten:

[0197] As Figures 1 to 7As shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: A plurality of auxiliary grooves 30 are provided on the third bracket 3, any one of the auxiliary grooves 30 extends in the first direction, and the plurality of auxiliary grooves 30 are distributed along the direction from the first bracket 1 to the second bracket 2, and the first bracket 1, the third bracket 3, and the second bracket 2 are sequentially distributed along the second direction.

[0198] In this embodiment, auxiliary grooves 30 are provided on the third bracket 3, and the number of the auxiliary grooves 30 is plural. The coil is fixed through the auxiliary grooves 30, improving the tightness and stability of the coil winding. Among them, each auxiliary groove 30 extends in the first direction, and the plurality of auxiliary grooves 30 are arrayed and distributed along the second direction, and the coil is wound around the insulating skeleton through the auxiliary grooves 30.

[0199] Specifically, the auxiliary grooves 30 are provided on the upper surface of the third bracket 3. When the auxiliary grooves 30 extend naturally along the outer surface of the third bracket 3, they are directly cut flat by the side surface of the third bracket 3.

[0200] Specifically, the second direction is the radial direction of the stator.

[0201] Embodiment Eleven:

[0202] As Figure 4 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The edge of the inclined portion 22 close to the bottom of the second bracket 2 is substantially flush with the bottom of the auxiliary groove 30.

[0203] In this embodiment, the edge of the inclined portion 22 close to the bottom of the second bracket 2 is substantially aligned with the bottom of the auxiliary groove 30, avoiding the bending of the coil and ensuring the tightness of the coil winding.

[0204] It can be understood that the edge of the inclined portion 22 close to the bottom of the second bracket 2 is also the lower edge of the inclined portion 22. The lower edge of the inclined portion 22 is substantially flush with the bottom of the auxiliary groove 30, that is, the lower edge of the inclined portion 22 is flush with the bottom of the auxiliary groove 30, or the lower edge of the inclined portion 22 is slightly higher than the bottom of the auxiliary groove 30.

[0205] Embodiment Twelve:

[0206] According to an embodiment of the present invention, on the basis of the above embodiment, further: The wall surface of the wire groove 20 close to the terminal accommodating portion 24 is substantially flush with the wall surface of the third bracket 3 close to the wire groove 20.

[0207] In this embodiment, the wall surface of the wire groove 20 close to the terminal accommodating portion 24 is substantially flush with the wall surface of the third bracket 3 close to the wire groove 20. In this way, when the coil is wound from the wire groove 20 to the third bracket 3, the coil can be wound more tightly, improving the slot fill factor of the stator core 4.

[0208] It is understandable that the wall surface of the wire groove 20 close to the terminal accommodating portion 24 is substantially flush with the wall surface of the third bracket 3 close to the wire groove 20, that is, the wall surface of the wire groove 20 close to the accommodating portion is flush with the wall surface of the third bracket 3 close to the wire groove 20, or there is a tiny gap between the wall surface of the wire groove 20 close to the accommodating portion and the wall surface of the third bracket 3 close to the wire groove 20.

[0209] Example Thirteen:

[0210] As Figure 7 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: a notch 10 is provided on the side of the first bracket 1 facing the second bracket 2. The notch 10 is arranged close to the bottom of the first bracket 1 and, along the first direction, the notch 10 is located on both sides of the third bracket 3.

[0211] In this embodiment, a notch 10 is provided on the first bracket 1. The notch 10 is located inside the first bracket 1 and can avoid the winding of the coil, ensuring the tightness of the coil winding.

[0212] Specifically, the notch 10 is located on the side of the first bracket 1 facing the second bracket 2 and is arranged close to the bottom of the first bracket 1. Further, along the first direction, the notch 10 is arranged on both sides of the third bracket 3. Thus, it can not only reduce the overall weight of the insulating skeleton and lower the production cost, but also avoid the third bracket 3 from excessively squeezing the coil and affecting the winding of the coil.

[0213] In specific applications, the wall surface of the first bracket 1 facing the second bracket 2 is an approximate plane, and the wall surface of the first bracket 1 away from the second bracket 2 is arc-shaped. Thus, when the insulating skeleton is applied to the stator, the first bracket 1 can be enclosed into a circle to adapt to the shape of the tooth part of the stator, facilitating the installation and movement of the rotor. At the same time, due to the arrangement of the notch 10, the shape of the first bracket 1 can be adapted to the end of the tooth part of the stator facing the inside of the stator, increasing the slot fill factor of the stator and making the overall connection more compact.

[0214] Specifically, the notch 10 is a flat but non-penetrating structure.

[0215] Further, the side of the notch 10 close to the top of the first bracket 1 is flush with the top of the auxiliary groove 30.

[0216] In this embodiment, the side of the notch 10 close to the top of the first bracket 1 is flush with the side of the top of the auxiliary groove 30, thus ensuring the effect of the notch 10 avoiding the coil and increasing the slot fill factor of the stator.

[0217] Example Fourteen:

[0218] As Figures 1 to 7As shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: The insulating skeleton further includes: a mark 29 provided on at least one of the second bracket 2 and the first bracket 1, and the mark 29 corresponds to the width of the notch 2400 and the width of the auxiliary slot 30 of the third bracket 3.

[0219] In this embodiment, the insulating skeleton further includes a mark 29, and the mark 29 is provided on at least one of the second bracket 2 and the first bracket 1. It can be understood that when winding different stators, different coil diameters will be corresponding, and further different widths of the auxiliary slot 30 and different widths of the notch 2400 will be corresponding. That is, the diameter of the coil is in one-to-one correspondence with the width of the notch 2400 and the width of the auxiliary slot 30. Therefore, the diameter of the coil changes synchronously with the width of the notch 2400 and the width of the auxiliary slot 30. Therefore, in the embodiment proposed in the present application, a mark 29 is provided on the insulating skeleton, and the mark 29 is in one-to-one correspondence with the diameter of the coil, the width of the notch 2400, and the width of the auxiliary slot 30. In this way, different insulating skeletons can be selected according to different coil diameters based on the mark 29. Specifically, different insulating skeletons correspond to different widths of the notch 2400 and different widths of the auxiliary slot 30, so that insulating skeletons of various size specifications can adapt to coils of different sizes.

[0220] Specifically, the width of the notch 2400 and the width of the yoke of the auxiliary slot 30 have various sizes and can be selected and used according to the actual situation.

[0221] Specifically, the mark 29 can be a number, a letter, or a symbol with the same function.

[0222] In specific applications, the mark 29 is provided on the terminal receiving portion 24 of the second bracket 2. Further, the mark 29 is provided on the top of the terminal receiving portion 24 for easy identification by the user.

[0223] Embodiment Fifteen:

[0224] As Figure 10 and Figure 11 shown, according to the second aspect of the present invention, a stator is further proposed, including: a crimp terminal provided in the receiving groove 240; a stator core 4, the stator core 4 includes a plurality of segmented cores connected in sequence, the segmented core includes a tooth portion, and the tooth portions of two adjacent segmented cores enclose a stator slot; and an insulating skeleton as proposed in any one of the first aspects, the number of insulating skeletons is multiple, and insulating skeletons are provided at both ends of any segmented core, and the third bracket 3 is disposed opposite to the tooth portion; a winding 5 wound around the tooth portion and the insulating skeleton.

[0225] The stator provided by the second aspect of the present invention includes the insulating skeleton proposed in any of the above embodiments, and thus has all the beneficial effects of the insulating skeleton.

[0226] Further, the stator includes a stator core 4, and the stator core 4 includes a plurality of segmented cores connected in sequence. The segmented core includes tooth portions, and a stator slot is formed by enclosing between the tooth portions of two adjacent segmented cores for accommodating the winding 5. Wherein, insulating skeletons are arranged at both ends of each segmented core, so that the winding 5 can be wound around the tooth portions and the insulating skeletons, ensuring the insulation performance. At the same time, this winding method enables the electrical connection of the same-phase windings 5 to be realized on the insulating skeletons, without the need to stack other structures for realizing electrical connection, thereby reducing the axial height of the stator and making the end part of the stator more compact. Among them, the crimp terminals realize the connection of the same-phase windings 5 in the accommodation groove 240.

[0227] Further, the winding 5 includes a plurality of coils. One coil is wound around one segmented core and the insulating skeletons at both ends of the segmented core. The coil includes a lead end and a tail end, and the wire groove 20 is used for accommodating the lead end and the tail end.

[0228] In this embodiment, the winding 5 includes a plurality of coils. One segmented core and the insulating skeletons at both ends thereof form a core assembly. Wherein, one coil is wound around each core assembly. After each coil is wound, the plurality of core assemblies are then joined into a circle to form a stator. Thus, while improving the slot fill factor, it can also avoid scratching the insulating layer on the surface of the coil.

[0229] Wherein, the coil includes a lead end and a tail end, and the wire groove 20 is used for accommodating the lead end and the tail end to ensure the tightness of the coil winding.

[0230] Specifically, the lead end is clamped in the wire groove 20 at one end in the axial direction of the stator core 4, then extends towards the other end of the stator core 4, and starts to wind from the side of the insulating skeleton away from the wire groove 20. Thus, the tail end is located on the side of the insulating skeleton close to the wire groove 20. Then the tail end is wound to the step portion 28, extends to the lower side of the protrusion portion 26 through the upper surface of the step portion 28, and then extends into the wire groove 20 and is pre-fixed in the wire groove 20. After all the coils are wound, the plurality of segmented cores are joined into a circle to form a stator. Compared with the prior art, the embodiment proposed in this application can not only improve the slot fill factor of the stator, but also avoid damaging the insulating layer of the coil itself.

[0231] Further, the stator further includes: insulating covers 6 arranged on both sides of the insulating skeletons. The insulating covers 6 are provided with avoidance grooves, and the avoidance grooves are correspondingly arranged with the marks 29 on the insulating skeletons for avoiding the marks 29.

[0232] In this embodiment, the stator further includes insulating covers 6, and the insulating covers 6 are provided with avoidance grooves for avoiding the marks 29 on the insulating skeletons.

[0233] Further, the stator further includes: an insulating cover plate 6, which is arranged on the side of the insulating skeleton away from the stator core 4, and the insulating cover plate 6 is snap-connected to the convex portion 26 of the insulating skeleton.

[0234] In this embodiment, the insulating skeleton further includes an insulating cover plate 6, which is arranged on the side of the insulating skeleton away from the stator core 4. Through the arrangement of the insulating skeleton, the coiling protection of both ends of the coil can be realized, and the safety performance of the stator can be improved. Among them, the insulating cover plate 6 is connected to the convex portion 26 of the insulating skeleton, realizing the fixation of the insulating cover plate 6, making the overall structure of the stator more compact and realizing the effective locking of the two.

[0235] Further, the insulating cover plate 6 is snap-connected to the convex portion 26 of the insulating skeleton.

[0236] As Figure 12 shown, in specific applications, the insulating cover plate 6 is provided with a buckle 60, and the buckle 60 is snap-connected to the convex portion 26. It can be understood that the length of the convex portion 26 is shorter than the length of the terminal accommodating portion 24, so the snap connection between the buckle 60 and the convex portion 26 is ensured.

[0237] Further, any one of the segmented cores includes a plurality of punching sheets, and the plurality of punching sheets are stacked along the axial direction of the stator core 4.

[0238] In this embodiment, each segmented core is provided with a plurality of punching sheets, and the plurality of punching sheets are stacked along the axial direction of the stator core 4. In this way, the overlapping portion is formed on the circumferential side edge of the punching sheet. When the plurality of punching sheets are stacked along the axial direction of the core, an overlapping gap is defined between adjacent punching sheets and is formed in the stator slot, facilitating the winding 5 to be wound around the teeth of the stator core 4 and located in the stator slot.

[0239] Specifically, the punching sheet is a silicon steel sheet.

[0240] Further, two adjacent segmented cores are rotationally connected through the overlapping portion.

[0241] In this embodiment, two adjacent segmented cores are rotationally connected through the overlapping portion, that is, the two connected segmented cores can rotate relative to each other.

[0242] By making two adjacent segmented cores rotationally connected through the overlapping portion, one segmented core can rotate around the other segmented core with the connection point of the overlapping portion as the center of the circle. This connection method is simple and reliable, facilitating the operator to adjust the shape and structure of the stator core 4, and the position of the segmented core can be adjusted according to the use requirements.

[0243] In the above embodiments, further, the stator core 4 includes tooth portions and yoke portions, and the stator core 4 has at least a first state and a second state; in the first state, a plurality of segmented cores are combined into a circle to form a first ring shape, and the tooth portions are located inside the yoke portions; in the second state, the plurality of segmented cores are unfolded to be substantially linear.

[0244] In this embodiment, the stator core 4 has a first state, and the first state is the normal state after the stator core 4 winds the winding 5. In the first state, a plurality of segmented cores are combined into a circle to form a first ring shape, and the tooth portions are located inside the yoke portions. In this state, the winding 5 is wound in the stator slots formed by adjacent tooth portions. The winding 5 is close to the inner side of the stator core 4. Two adjacent stator cores 4 are rotationally connected through overlapping portions provided on the outer yoke portions and jointly enclose a circular stator core 4.

[0245] The stator core 4 also has a second state. Since two adjacent segmented cores are rotationally connected, when two adjacent segmented cores in the stator core 4 move relative to each other, the plurality of segmented cores can be unfolded to be substantially linear. The tooth portions of the unfolded segmented cores are substantially linearly distributed. And because the stator core 4 is in the unfolded state, compared with the first state, the space of the stator slot between two tooth portions is increased, which is convenient for the operator to wind the winding 5.

[0246] By making the stator core 4 in the second state, the tooth portions can be substantially linearly distributed, and the space of the stator slot can be increased, which is convenient for the operator to wind the winding 5. After the operation of winding the winding 5 is completed, the stator core 4 is enclosed into the first state, and the respective segmented cores are enclosed into a circular stator core 4 to make the structure of the stator core 4 stable and reliable.

[0247] Further, in the second state, the two segmented cores at both ends are connected together after being combined into a circle. Specifically, the two segmented cores can be welded after being combined into a circle.

[0248] It can be understood that in the second state, the stator core 4 is substantially linear, including that the stator core 4 is linear or the stator core 4 has a certain curvature.

[0249] In the above embodiments, further, the plurality of punching sheets include alternately arranged first punching sheet layers and second punching sheet layers; overlapping portions are provided on the first side of the first punching sheet layer, and the overlapping portions on the first punching sheet layer protrude from the second punching sheet layer. The overlapping portions between two adjacent first punching sheet layers enclose an overlapping gap; overlapping portions are provided on the second side of the second punching sheet layer, and the overlapping portions on the second punching sheet layer protrude from the first punching sheet layer. The overlapping portions between two adjacent second punching sheet layers enclose an overlapping gap; in two adjacent segmented cores, the overlapping portion of one segmented core is inserted into the overlapping gap of the other segmented core.

[0250] In this embodiment, the plurality of punching sheets include a first punching sheet layer and a second punching sheet layer, and the plurality of first punching sheets and the plurality of second punching sheets are alternately distributed along the axial direction of the stator core 4. The first punching sheet layer is provided with an overlapping portion on the first side, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer. Since the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately arranged, the two adjacent first punching sheet layers both protrude from the second punching sheet layer disposed between the two adjacent first punching sheet layers, so that an overlapping gap is formed between the two adjacent first punching sheet layers. The second punching sheet layer is provided with an overlapping portion on the second side, that is, the second punching sheet layer is provided with an overlapping portion on a side different from the first punching sheet layer. The overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer. Since the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately arranged, the two adjacent second punching sheet layers both protrude from the first punching sheet layer disposed between the two adjacent second punching sheet layers, so that an overlapping gap can also be formed between the two adjacent second punching sheet layers.

[0251] It can be understood that when the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately distributed along the circumferential direction of the stator core 4, the overlapping portions provided on the first side of the plurality of first punching sheet layers and the overlapping portions provided on the second side of the plurality of second punching sheet layers are alternately arranged. Further, the overlapping gaps between two adjacent first punching sheet layers and the overlapping gaps between two adjacent second punching sheet layers are respectively located on both sides of the segmented core and are alternately arranged.

[0252] On the adjacent sides of two adjacent segmented cores, an overlapping portion and an overlapping gap are respectively provided. Since the overlapping portions provided on the first side of the plurality of first punching sheet layers and the overlapping portions provided on the second side of the plurality of second punching sheet layers are alternately arranged, and the overlapping gaps between two adjacent first punching sheet layers and the overlapping gaps between two adjacent second punching sheet layers are alternately arranged, the overlapping portion of one segmented core is inserted into the overlapping gap of the other segmented core, thereby realizing the connection of two adjacent segmented cores.

[0253] By alternately arranging the first punching sheet layer and the second punching sheet layer, providing overlapping portions on different sides of the first punching sheet layer and the second punching sheet layer, and forming overlapping gaps by the first punching sheet layer and the second punching sheet layer on different sides, the connection between two adjacent segmented cores can be realized through the overlapping portion and the overlapping gap. Specifically, the overlapping portion of one segmented core is inserted into the overlapping gap of the other segmented core. This connection method is stable and reliable. The operator can quickly disassemble and assemble the stator core 4, improving the work efficiency. And by using the same structure for the plurality of segmented cores, the connection between them can be realized, reducing the types of segmented cores, improving the versatility of the segmented cores, and reducing the product cost.

[0254] In the above embodiments, further, the plurality of punching sheets include a first punching sheet layer and a second punching sheet layer which are alternately arranged; an overlapping portion is provided on a first side of the first punching sheet layer, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer, and an overlapping gap is defined between two adjacent first punching sheet layers; an overlapping portion is provided on a second side of the second punching sheet layer, and the overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer, and an overlapping gap is defined between two adjacent second punching sheet layers; in two adjacent segmented iron cores, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core.

[0255] In this embodiment, the plurality of punching sheets include a first punching sheet layer and a second punching sheet layer, and a plurality of first punching sheets and a plurality of second punching sheets are alternately distributed along the axial direction of the stator core 4. The first punching sheet layer is provided with an overlapping portion on a first side, and the overlapping portion on the first punching sheet layer protrudes from the second punching sheet layer. Since the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately arranged, the two adjacent first punching sheet layers both protrude from the second punching sheet layer disposed between the two adjacent first punching sheet layers, so that an overlapping gap is defined between the two adjacent first punching sheet layers. The second punching sheet layer is provided with an overlapping portion on a second side, that is, the second punching sheet layer is provided with an overlapping portion on a side different from the first punching sheet layer. The overlapping portion on the second punching sheet layer protrudes from the first punching sheet layer. Since the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately arranged, the two adjacent second punching sheet layers both protrude from the first punching sheet layer disposed between the two adjacent second punching sheet layers, so that an overlapping gap can also be defined between the two adjacent second punching sheet layers.

[0256] It can be understood that when the plurality of first punching sheet layers and the plurality of second punching sheet layers are alternately distributed along the circumferential direction of the stator core 4, the overlapping portions provided on the first side of the plurality of first punching sheet layers and the overlapping portions provided on the second side of the plurality of second punching sheet layers are arranged in an interleaved manner. Further, the overlapping gap between two adjacent first punching sheet layers and the overlapping gap between two adjacent second punching sheet layers are respectively located on both sides of the segmented iron core and are arranged in an interleaved manner.

[0257] On one side where two adjacent segmented iron cores are adjacent to each other, an overlapping portion and an overlapping gap are respectively provided. Since the overlapping portions provided on the first side of the plurality of first punching sheet layers and the overlapping portions provided on the second side of the plurality of second punching sheet layers are arranged in an interleaved manner, and the overlapping gap between two adjacent first punching sheet layers and the overlapping gap between two adjacent second punching sheet layers are arranged in an interleaved manner, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core, thereby realizing the connection between two adjacent segmented iron cores.

[0258] By alternately arranging the first punched sheet layer and the second punched sheet layer, overlapping portions are respectively arranged on different sides of the first punched sheet layer and the second punched sheet layer, and the first punched sheet layer and the second punched sheet layer enclose an overlapping gap on different sides, so that two adjacent segmented iron cores can be connected through the overlapping portions and the overlapping gap. Specifically, the overlapping portion of one segmented iron core is inserted into the overlapping gap of the other segmented iron core. This connection method is stable and reliable, and the operator can quickly disassemble and assemble the stator core 4, improving work efficiency. And by using the same structure for multiple segmented iron cores, they can be interconnected, reducing the variety of segmented iron cores, improving the versatility of the segmented iron cores, and reducing product costs.

[0259] Example XVI:

[0260] As Figure 8 shown, according to an embodiment of the present invention, on the basis of the above embodiment, further: a connecting protrusion 27 is provided at the bottom of the second bracket 2, and a groove is provided on the stator core 4, and the connecting protrusion 27 is connected to the groove.

[0261] In this embodiment, the second bracket 2 has a connecting protrusion 27 for cooperating with the stator core 4 to fix the insulating skeleton on the stator core 4.

[0262] Example XVII:

[0263] According to the third aspect of the present invention, a motor is further proposed, including: a stator as proposed in the second aspect; a rotor, which cooperates with the stator and rotates.

[0264] The motor provided by the third aspect of the present invention includes the stator proposed in the first aspect, so it has all the beneficial effects of the stator.

[0265] In addition, the motor further includes a rotor, which is arranged inside the stator and can cooperate with the stator to rotate, thereby outputting torque.

[0266] Example XVIII:

[0267] According to the fourth aspect of the present invention, a compressor is further proposed, including: a motor as proposed in the third aspect.

[0268] The compressor provided by the fourth aspect of the present invention includes the motor proposed in the third aspect, so it has all the beneficial effects of the motor.

[0269] Example XIX:

[0270] According to the fifth aspect of the present invention, a vehicle is further proposed, including: a compressor as proposed in the fourth aspect.

[0271] The vehicle provided in the fifth aspect of the present invention includes the compressor proposed in the fourth aspect above, and thus has all the beneficial effects of the compressor. Specific embodiments:

[0273] As Figures 1 to 11 shown, the embodiment proposed in the present application provides an insulating skeleton for a stator, and the stator includes a winding 5 wound around the insulating skeleton.

[0274] Among them, the main body of the insulating skeleton is arranged in a substantially U-shaped shape, and the insulating skeleton includes a first bracket 1, a second bracket 2, and a third bracket 3. The second bracket 2, the first bracket 1, and the third bracket 3 have a common reference plane. Among them, along the height on one side of the reference plane, the second bracket 2 is greater than the first bracket 1, and the first bracket 1 is greater than the third bracket 3, jointly forming a winding accommodating portion.

[0275] One side of the first bracket 1, which is close to the winding accommodating portion, is approximately a plane, and the other side is arc-shaped.

[0276] The second bracket 2 mainly extends to both sides along a direction substantially perpendicular to the reference plane. The second bracket 2 has a connecting protrusion 27 for cooperating with the stator core 4 to fix the insulating skeleton on the stator core 4. When viewed from a direction perpendicular to the reference plane, a protrusion 26, a wire groove 20, and a terminal accommodating portion 24 are sequentially distributed.

[0277] The third bracket 3 extends from the reference plane to the side of the winding accommodating portion. On the surface of the third bracket 3, which is close to the winding accommodating portion, there is an auxiliary groove 30 for assisting the arrangement of winding turns during winding. The auxiliary grooves 30 are arranged in an array in the direction of the reference plane.

[0278] The protrusion 26 has a protrusion extending along the direction of the reference plane. The protrusion is inclined in a direction perpendicular to the reference plane, and the outermost shape edge of the protrusion 26 is lower than the outermost shape edge of the terminal accommodating portion 24.

[0279] The wire groove 20 is partially divided into an upper half and a lower half. The upper half is a hollow part, and the lower half has a slope-shaped feature. The upper half and the lower half are divided by a stepped surface. The upper edge of the slope starts from the stepped surface and extends to the lower edge. The lower edge is approximately aligned with the surface of the auxiliary groove 30 of the third bracket 3.

[0280] On both sides of the terminal accommodating portion 24, there are slot openings 2400 for accommodating wires. The upper half of the slot opening 2400 is a sloped opening, and the lower half is approximately U-shaped; in the middle of the terminal accommodating portion 24, there is an accommodating groove 240 with a generally hollow rectangular area for accommodating crimp terminals. There are overflow glue grooves 242 on both sides of the slot opening 2400. The overflow glue grooves 242 are formed by local protrusions or semi-protrusions in the shape of pits or approximately pits.

[0281] Further, the stepped surface of the wire groove 20 is lower than the lower surface of the outer convex portion 26.

[0282] Further, the width of the wire groove 20 is greater than the width of the notch 2400 of the outer terminal accommodating portion 24.

[0283] Further, one side of the wire groove 20 close to the terminal accommodating portion 24 is substantially aligned with one side of the third bracket 3 close to the convex portion 26.

[0284] Further, in the direction parallel to the reference plane of the terminal accommodating portion 24, there is a mark 29, and the mark 29 can be a number, a letter or a symbol with the same function. The way of the mark 29 is that when the wire diameter of the winding changes, the width of the notch 2400 of the terminal accommodating portion 24 and the width of the auxiliary groove 30 change synchronously.

[0285] Further, a stepped portion 28 is provided on the side of the convex portion 26 away from the wire groove 20, and the width of the stepped portion 28 is smaller than the width of the wire groove 20.

[0286] Further, the sum of the widths of the plurality of auxiliary grooves 30 is less than or equal to the width of the main body of the third bracket 3. When the auxiliary grooves 30 extend naturally along the outer surface of the third bracket 3, they are directly cut flat by the side surface of the third bracket 3, and the highest point where the two extend and intersect is called the side height of the auxiliary groove 30.

[0287] Further, a flat but non-penetrating cut 10 is provided on the first bracket 1.

[0288] Further, the height of the cut 10 is the same as the side height of the auxiliary groove 30.

[0289] Further, the number of the wire grooves 20 is one and only one. Compared with the prior art, the present application only needs one wire groove 20, and further the wire head and the wire tail are simultaneously accommodated in the wire groove 20, so that the coil winding is more compact.

[0290] Further, the material of the insulating skeleton is an insulating material with a temperature resistance of more than 120 °C. Specifically, the material of the insulating skeleton is an insulating material with a long-term temperature resistance of more than 120 °C.

[0291] Further, the insulating skeleton is applied to the stator, the stator is applied to the motor, and the compressor includes the motor.

[0292] Specifically, the vehicle includes a vehicle body and a compressor, and the compressor is arranged in the vehicle body.

[0293] In the present invention, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "coupled" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0294] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0295] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An insulating skeleton, characterized in that, Comprising: A first bracket; A second bracket, which is arranged opposite to the first bracket, and a terminal accommodating portion is provided on a side of the second bracket facing away from the first bracket. The terminal accommodating portion includes: A receiving groove for receiving a crimp terminal. Along a first direction, notch openings are provided on opposite side walls of the receiving groove; A glue overflow groove. Along the first direction, the glue overflow groove is located on at least one side of the receiving groove, and the glue overflow groove communicates with the notch opening; A third bracket, which is located between the first bracket and the second bracket and is connected to the first bracket and the second bracket; The terminal accommodating portion further includes: A glue overflow platform. Along the first direction, the glue overflow platform is provided on both sides of the receiving groove; A boss, which is provided on the glue overflow platform, and at least the boss and the glue overflow platform enclose the glue overflow groove.

2. The insulating skeleton according to claim 1, wherein, The boss includes: A first boss. Along the first direction, the first boss is provided on a first side of the receiving groove and is located on a side of the notch opening away from the first bracket; A second boss. Along the first direction, the second boss is provided on a second side of the receiving groove. The second boss, the second bracket, the receiving groove and the glue overflow platform enclose the glue overflow groove, and a notch is provided between the second boss and the receiving groove.

3. The insulating skeleton according to claim 1, wherein The notch opening includes a first channel and a second channel that are connected. The first channel is located at the top of the second channel, and side walls of the first channel are tapered outwardly on both sides of the first channel.

4. The insulating skeleton according to any one of claims 1 to 3, characterized in that, It further includes: A raised portion, which is provided on a side of the second bracket facing away from the first bracket. Along the first direction, the raised portion and the terminal accommodating portion are arranged in sequence.

5. The insulating skeleton according to claim 4, wherein At least a part of a top wall of the raised portion is inclined towards a bottom of the second bracket; and / or A length by which the terminal accommodating portion protrudes from the second bracket is greater than a length by which the raised portion protrudes from the second bracket.

6. The insulating skeleton according to claim 4, characterized in that, It further includes: A stepped portion, which is provided on the second bracket, and the stepped portion is located on a side of the raised portion away from the terminal accommodating portion.

7. The insulating skeleton according to any one of claims 1 to 3, wherein A plurality of auxiliary grooves are provided on the third bracket. Any one of the auxiliary grooves extends along the first direction, and the plurality of auxiliary grooves are distributed along a second direction. The first bracket, the third bracket and the second bracket are distributed in sequence along the second direction.

8. The insulating skeleton according to claim 7, wherein A notch is provided on a side of the first bracket facing the second bracket. The notch is provided near a bottom of the first bracket, and along the first direction, the notch is located on both sides of the third bracket.

9. The insulating skeleton according to claim 8, wherein A side of the notch near a top of the first bracket is flush with a top of the auxiliary groove.

10. The insulating skeleton according to any one of claims 1 to 3, characterized in that, It further includes: A mark, which is provided on at least one of the second bracket and the first bracket, and the mark corresponds to a width of the notch opening and a width of the auxiliary groove of the third bracket.

11. A stator, characterized in that, Comprising: A crimping terminal, the crimping terminal being disposed in the receiving groove; A stator core, the stator core including a plurality of segmented cores connected in sequence, the segmented core including tooth portions, and the tooth portions of two adjacent segmented cores enclosing a stator slot; and The insulating skeleton according to any one of claims 1 to 10, wherein the number of the insulating skeletons is multiple, and the insulating skeletons are provided at both ends of any one of the segmented cores, and the third bracket is disposed opposite to the tooth portion; A winding, the winding being wound around the tooth portion and the insulating skeleton.

12. The stator according to claim 11, wherein, Further comprising: Insulating cover plates, disposed on both sides of the insulating skeleton, the insulating cover plates being provided with avoidance grooves, the avoidance grooves being correspondingly disposed with the marks on the insulating skeleton for avoiding the marks.

13. The stator according to claim 11, wherein A connecting protrusion is provided at the bottom of the second bracket, and a groove is provided on the stator core, and the connecting protrusion is connected to the groove.

14. A motor, characterized in that, Comprising: The stator according to any one of claims 11 to 13; A rotor, which is matched with the stator and rotates.

15. A compressor, characterized in that, Comprising: The motor according to claim 14.

16. A vehicle, characterized in that, Comprising: The compressor according to claim 15.

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