Framework structure, stator assembly and motor

Abstract

The invention provides a skeleton structure, a stator assembly and a motor. The skeleton structure comprises a pushing assembly and a skeleton assembly. The framework assembly comprises a first framework body and a second framework body, a first coil is wound on the first framework body, and a second coil is wound on the second framework body; one end of the pushing assembly is rotatably connected with the first framework body, the other end of the pushing assembly is rotatably connected with the second framework body, and a wire body of the first coil or a wire body of the second coil passes through the first wire passing groove to be led out; in the first direction, when the first framework body and the second framework body are folded inwards, the first framework body and the second framework body push the pushing assembly to move outwards, and the pushing assembly is used for tightening a wire body of the first coil or a wire body of the second coil. The pushing assembly pushes the wire body to move outwards, so that the wire body is tightened in the wire passing groove, and the problem that an iron core is bonded outside the bridging wire body or the bridging wire body is clamped by a circle formed by the iron core is avoided.

Description

Technical Field

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

[0002] The existing motor stator insulation skeleton structure and wiring method are not very reasonable. On the chain structure, when the stator assembly is transformed from a straight bar state into a circular state through rounding, since the coil is wound on the insulating skeleton, the wire body must cross another skeleton after winding from one skeleton, which causes the inter-slot connection path between the skeletons to become loose and hang out of the slot. In the process of rounding the stator assembly, the wire body will also move due to changes in shape. The existing skeleton structure cannot fix the wire body, resulting in the wire body being connected to the iron core outside the bridge or being pinched by the iron core during rounding, causing quality problems such as poor motor withstand voltage or short circuit damage. Summary of the invention

[0003] The present invention provides a skeleton structure, a stator assembly and a motor, which can solve the technical problems that the inter-slot connection paths between skeletons are prone to become loose and hang out of the slots, and in the process of rounding the stator assembly, the wires passing through the bridge are connected to the iron core outside or are clamped by the iron core during rounding.

[0004] The present invention provides a skeleton structure, which includes a push assembly and a skeleton assembly;

[0005] The skeleton assembly comprises a first skeleton body and a second skeleton body, the first skeleton body is wound with a first coil, and the second skeleton body is wound with a second coil;

[0006] One end of the push assembly is rotatably connected to the first frame body, and the other end of the push assembly is rotatably connected to the second frame body. The push assembly is provided with a first wire groove, and the wire body of the first coil or the wire body of the second coil passes through the first wire groove to be discharged;

[0007] In a first direction, when the first skeleton body and the second skeleton body are retracted inward, the first skeleton body and the second skeleton body push the pushing assembly to move outward, and the pushing assembly is used to tighten the wire body of the first coil or the wire body of the second coil.

[0008] In some embodiments, a second wire passing groove is provided on the first skeleton body, and a third wire passing groove is provided on the second skeleton body, and the wire body of the first coil passes through the first wire passing groove and the third wire passing groove in sequence to come out, or the wire body of the second coil passes through the first wire passing groove and the second wire passing groove in sequence to come out.

[0009] In some embodiments, the pushing assembly includes a first push plate, a second push plate and a back plate, the two ends of the back plate are rotatably connected to the first push plate and the second push plate respectively, the end of the first push plate away from the back plate is rotatably connected to the first skeleton body, the end of the second push plate away from the back plate is rotatably connected to the second skeleton body, the first push plate and the second push plate push the back plate to be movably arranged, and the first wire groove is arranged on the back plate.

[0010] In some embodiments, a first end plate is provided on the inner wall of one end of the first push plate away from the back plate, and the first end plate is connected to the end surface of the first skeleton body via a first pin shaft, and a second end plate is provided on the inner wall of one end of the second push plate away from the back plate, and the second end plate is connected to the end surface of the second skeleton body via a second pin shaft.

[0011] In some embodiments, the first wire-passing groove includes a first branching groove and a second branching groove, and a first baffle, a second baffle and a third baffle are provided on the outer side of the first back plate, the first branching groove is formed between the first baffle and the second baffle, and the second branching groove is formed between the second baffle and the third baffle.

[0012] In some embodiments, the first skeleton body and the second skeleton body both include an upper skeleton and a lower skeleton, a first plug-in step is provided at the bottom of the upper skeleton, and a second plug-in step is provided at the top of the lower skeleton, and the first plug-in step is plugged into the second plug-in step to form a stator core accommodating cavity between the inner cavity of the upper skeleton and the inner cavity of the lower skeleton.

[0013] In some embodiments, the first plug-in step has a plug-in portion, and the second plug-in step has a male plug-in portion, the plug-in portion is plugged with the male plug-in portion, and the plug-in length of the plug-in portion inserted into the male plug-in portion is adjustable.

[0014] In some embodiments, in the plug-in direction of the upper frame and the lower frame, the outer edge of the plug-in portion is provided with a plurality of sawtooth structures, and the male plug-in portion is provided with a plurality of tooth grooves, and the sawtooth structures can be plugged with the tooth grooves in different height directions.

[0015] In some embodiments, in the plug-in direction of the upper skeleton and the lower skeleton, the height of the inner cavity of the upper skeleton is H1, the height of the plug-in portion is C, the height of a single sawtooth structure is D, the heights of the first plug-in step and the second plug-in step are both T, the height of the inner cavity of the lower skeleton is H2, the set thickness of the stator core is L, the minimum thickness of the stator core that can be installed in the stator core accommodating cavity is L', the maximum thickness of the stator core that can be installed in the stator core accommodating cavity is L", the minimum thickness satisfies: L'=H1+H2-T, the maximum thickness L" satisfies: L"=H1+H2-T+(C-1.5D), and the set thickness L satisfies: L'≤L≤L".

[0016] A stator assembly comprises a stator core and a plurality of skeleton structures, wherein the skeleton structure is the skeleton structure mentioned above, the stator core is a straight bar core, the stator core comprises a plurality of stator core units connected in sequence along a straight line direction, a first skeleton body and a second skeleton body of the plurality of skeleton structures are respectively mounted on the stator core units, and a side of the second skeleton body away from the first skeleton body is connected to the first skeleton body of the adjacent skeleton structure through the pushing assembly, when the stator assembly is connected end to end from a straight bar shape and shaped into a circular ring shape, the first direction is the radial direction of the stator assembly, the plurality of stator core units are radially retracted inward, and the first skeleton body and the second skeleton body are retracted inward.

[0017] A motor comprises the above-mentioned stator assembly or the above-mentioned skeleton structure.

[0018] The present invention provides a skeleton structure, a stator assembly and a motor, which have the following beneficial effects:

[0019] The two ends of the push assembly of the present invention are rotatably connected to the first skeleton body and the second skeleton body. When the skeleton body is retracted inward, the push assembly pushes the wire body to move outward, thereby applying an outward thrust to the wire body wound in the first wire groove, so that the wire body is tightened in the wire groove, enhancing the fixation and stability of the coil, and reducing the risk of the wire body being loose and hanging out of the groove. The present invention reduces the displacement and hanging of the wire body through the rotatable connection of the push assembly and the tension applied to the wire body, which can reduce quality problems such as poor voltage resistance or short circuit damage of the motor, and improve the electrical performance and reliability of the motor. Through the setting of the push assembly, during the process of the first skeleton body and the second skeleton body retracting inward, the displacement of the wire body due to shape change is reduced, thereby avoiding the problem of the bridge wire being connected to the core outside or being pinched by the core. In addition, the pushing assembly can adapt to changes in the shape of the skeleton body, maintain the tension of the wire, and prevent the wire from loosening or being damaged. The setting of the pushing assembly allows the coil to be transferred more smoothly from one skeleton body to another during the winding process, thereby optimizing the coil winding and assembly process and reducing insulation risks caused by improper assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0021] Figure 1 is a schematic diagram of a skeleton structure of an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the first frame body and the second frame body of the embodiment of the present invention being retracted inwards;

[0023] Figure 3 is a schematic diagram of a push assembly according to an embodiment of the present invention;

[0024] Figure 4 An exploded schematic diagram of a push assembly according to an embodiment of the present invention

[0025] Figure 5 is a schematic diagram of a backplane according to an embodiment of the present invention;

[0026] Figure 6 A top view of a push assembly according to an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of a first push plate and a second push plate pushing a back plate according to an embodiment of the present invention;

[0028] Figure 8An exploded view of the skeleton structure of an embodiment of the present invention;

[0029] Fig. 9 is a schematic diagram of an upper skeleton of an embodiment of the present invention;

[0030] Fig.10 A side view of an upper frame according to an embodiment of the present invention;

[0031] Fig.11 A front view of an upper frame according to an embodiment of the present invention;

[0032] Fig.12 is a schematic diagram of a lower frame of an embodiment of the present invention;

[0033] Fig.13 is a side view of a lower frame of an embodiment of the present invention;

[0034] Fig.14 Schematic diagram of the upper frame height H1, height T, height C and height D of an embodiment of the present invention;

[0035] Fig.15 Schematic diagram of the height H2 and height T of the lower frame according to an embodiment of the present invention;

[0036] Fig.16 is a schematic diagram of the minimum thickness L' of an embodiment of the present invention;

[0037] Fig.17 Schematic diagram of the maximum thickness L" of an embodiment of the present invention;

[0038] Fig.18 It is a schematic diagram of a stator assembly of an embodiment of the present invention when it is in a straight bar shape;

[0039] Fig.19 It is a schematic diagram of a stator assembly of an embodiment of the present invention when it is shaped into a circular ring;

[0040] Fig. 20 A top view of a stator assembly of an embodiment of the present invention when it is shaped into a circular ring;

[0041] Fig.21 Schematic diagram of the movement process of the push assembly;

[0042] Fig. 22 It is the force diagram of the push assembly.

[0043] Figure: 1-push assembly; 101-first wire groove; 111-first wire dividing groove; 112-second wire dividing groove; 102-first push plate; 103-second push plate; 104-back plate; 141-first baffle plate; 142-second baffle plate; 143-third baffle plate; 105-first end plate; 106-first pin shaft; 107-second end plate; 108-second pin shaft; 191-hinge column; 192-mounting platform; 193-annular protrusion; 194-hinge hole; 21-first skeleton body; 211-second wire groove; 22-second Skeleton body; 221-third wire groove; 201-upper skeleton; 202-lower skeleton; 203-stator core accommodating chamber; 231-inner plate; 232-outer plate; 233-winding part; 234-protective plate; 235-inner baffle plate; 236-outer baffle plate; 204-first plug-in step; 205-second plug-in step; 206-plug-in part; 207-male plug-in part; 208-sawtooth structure; 209-tooth slot; 3-stator core; 301-stator core unit; 401-wire body of the first coil; 402-wire body of the second coil. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0046] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0047] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0048] See also Figure 1 and Figure 2 As shown, according to an embodiment of the present invention, a skeleton structure is provided, which includes a pushing assembly 1 and a skeleton assembly; the skeleton assembly includes a first skeleton body 21 and a second skeleton body 22, a first coil is wound on the first skeleton body 21, and a second coil is wound on the second skeleton body 22; one end of the pushing assembly 1 is rotatably connected to the first skeleton body 21, and the other end of the pushing assembly 1 is rotatably connected to the second skeleton body 22, the pushing assembly 1 is provided with a first wire passing groove 101, and the wire body 401 of the first coil or the wire body 402 of the second coil is discharged through the first wire passing groove 101; in the first direction, when the first skeleton body 21 and the second skeleton body 22 are retracted inwardly, the first skeleton body 21 and the second skeleton body 22 push the pushing assembly 1 to move outward, and the pushing assembly 1 is used to tighten the wire body 401 of the first coil or the wire body 402 of the second coil.

[0049] Specifically, the first coil is wound on the first skeleton body 21, and the second coil is wound on the second skeleton body 22. The wire is led out in a clockwise direction, and the wire body 401 of the first coil is wound around the pushing component 1. The wire body 401 of the first coil passes through the first wire groove 101 and then leads out. Since the first coil and the second coil have to cross a skeleton body to lead out, the wire body 401 of the first coil is not wound around the second skeleton body 22. Similarly, when leading out in a counterclockwise direction, the wire body 401 of the first coil is not wound around the pushing component 1, and the wire body 402 of the second coil is wound around the pushing component 1. In the first direction, when the first skeleton body 21 and the second skeleton body 22 are retracted inward, since one end of the pushing assembly 1 is rotatably connected to the first skeleton body 21, and the other end of the pushing assembly 1 is rotatably connected to the second skeleton body 22, the two ends of the pushing assembly 1 can rotate relative to the first skeleton body 21 and the second skeleton body 22. Therefore, when the skeleton bodies are retracted inward, the pushing assembly 1 is pushed to move outward without changing the length of the pushing assembly 1. At this time, the wire body wound in the first wire groove 101 is applied with an outward thrust, thereby tightening the wire body in the first wire groove 101.

[0050] In this embodiment, the two ends of the push assembly 1 are rotatably connected to the first skeleton body 21 and the second skeleton body 22. When the skeleton body is retracted inward, the push assembly 1 pushes the wire body to move outward, thereby applying an outward thrust to the wire body wound in the first wire groove 101, so that the wire body is tightened in the wire groove, enhancing the fixation and stability of the coil, and reducing the risk of the wire body being loose and hanging out of the groove. In this embodiment, the displacement and hanging of the wire body are reduced by the rotatable connection of the push assembly 1 and the tension applied to the wire body, which can reduce the quality problems such as poor voltage resistance or short circuit damage of the motor, and improve the electrical performance and reliability of the motor. Through the setting of the push assembly 1, the displacement of the wire body due to shape change is reduced during the process of the first skeleton body 21 and the second skeleton body 22 being retracted inward, thereby avoiding the problem of the bridge wire being connected to the core outside or being pinched by the core. In addition, the pushing assembly 1 can adapt to changes in the shape of the skeleton body, maintain the tension of the wire, and prevent the wire from loosening or being damaged. The setting of the pushing assembly 1 allows the coil to be transferred more smoothly from one skeleton body to another during the winding process, thereby optimizing the winding and assembly process of the coil and reducing insulation risks caused by improper assembly.

[0051] It is worth noting that the first direction of the present embodiment refers to the vertical line at the adjacent positions of the first skeleton body 21 and the second skeleton body 22 with the end face of the skeleton structure as the projection plane; when multiple skeleton structures are provided, the side of the second skeleton body 22 away from the first skeleton body 21 is connected to the first skeleton body 21 of the adjacent skeleton structure through the pushing assembly 1, and the first skeleton body 21 and the second skeleton body 22 need to be gathered inward to form a circular shape, and the first direction also refers to the radial direction of the circular shape.

[0052] See also Figures 1 to 7 As shown, the push assembly 1 includes a first push plate 102, a second push plate 103 and a back plate 104, both ends of the back plate 104 are rotatably connected to the first push plate 102 and the second push plate 103 respectively, the end of the first push plate 102 away from the back plate 104 is rotatably connected to the first skeleton body 21, the end of the second push plate 103 away from the back plate 104 is rotatably connected to the second skeleton body 22, the first push plate 102 and the second push plate 103 push the back plate 104 to be movably arranged, and a first wire groove 101 is arranged on the back plate 104.

[0053] Specifically, initially, the first skeleton body 21 and the second skeleton body 22 are arranged in parallel, that is, arranged side by side, and the first push plate 102 and the second push plate 103 are also straight. When the wire is output in a clockwise direction, the wire body 401 of the first coil is wound around the back plate 104, and the wire body 401 of the first coil is passed through the first wire groove 101 before outputting the wire; when the wire is output in a counterclockwise direction, the wire body 402 of the second coil is wound around the back plate 104, and the wire body 402 of the second coil is passed through the first wire groove before outputting the wire. When the first frame body 21 and the second frame body 22 are retracted inward, the connection positions of the first push plate 102 and the first frame body 21, and the second push plate 103 and the second frame body 22 do not change. Only the first push plate 102 rotates relative to the first frame body 21, and the second push plate 103 rotates relative to the second frame body 22. Under the premise that the lengths of the first push plate 102 and the second push plate 103 do not change, the parallel state of the first frame body 21 and the second frame body 22 is changed to an angle between the first frame body 21 and the second frame body 22. The first push plate 102 and the second push plate 103 are pushed by the frame bodies, and the angle between the first push plate 102 and the second push plate 103 becomes smaller. The first push plate 102 and the second push plate 103 push the back plate 104 to move outward, and the wire body in the first wire groove 101 moves outward with the back plate 104. The wire body also changes from the original straight state to the angled straight state. The wire body is tightened in the first wire groove 101 and is not easy to slide out. Similarly, the wire 402 of the second coil is also tightened in the counterclockwise direction.

[0054] In this embodiment, by the relative rotation of the first push plate 102 and the second push plate 103, when the first skeleton body 21 and the second skeleton body 22 are retracted inward, the stability of the push assembly 1 can be maintained, the problems caused by structural deformation can be reduced, the tension of the wire body in the first wire groove 101 can be maintained, and the wire body can be prevented from being loose or slipping out. The first push plate 102 and the second push plate 103 push the back plate 104 to be movably arranged, so that the thrust can be effectively transmitted to the back plate 104, and then the required tension is applied to the wire body to keep the wire body in a taut state in the wire groove. When the first skeleton body 21 and the second skeleton body 22 change from a parallel state to an angled setting, the first push plate 102 and the second push plate 103 push the back plate 104 to move outward, so that the wire body is tightened in the first wire groove 101, thereby fixing the position of the wire body and reducing the displacement of the wire body during the rounding process. After the wire is tightened in the first wire groove 101, the chance of the wire contacting the iron core or other components is reduced, thereby reducing the risk of the wire being pinched or damaged. By reducing the movement and damage of the wire, the voltage resistance and electrical reliability of the motor can be improved, and quality problems such as short circuits and poor insulation can be reduced. The setting of the push assembly 1 improves the structural stability of the entire skeleton.

[0055] See also Figures 1 to 7 As shown, a first end plate 105 is provided on the inner wall of one end of the first push plate 102 away from the back plate 104, and the first end plate 105 is connected to the end surface of the first skeleton body 21 through a first pin shaft 106. A second end plate 107 is provided on the inner wall of one end of the second push plate 103 away from the back plate 104, and the second end plate 107 is connected to the end surface of the second skeleton body 22 through a second pin shaft 108.

[0056] Specifically, the pushing assembly 1 of the present embodiment can be connected to the end face of the skeleton body, or to the outer wall or inner wall of the skeleton body. Considering the application mode and structural characteristics of the skeleton structure, the pushing assembly in the present embodiment is arranged on the end face of the skeleton body as a whole, that is, the first push plate 102 is connected to the top end of the first skeleton body 21 through the first end plate 105, the bottom of the first end plate 105 is fitted with the end face of the first skeleton body 21, the second push plate 103 is connected to the top end of the second skeleton body 22 through the second end plate 107, the bottom of the second end plate 107 is fitted with the end face of the second skeleton body 22, and the first end plate 105 is connected to the first skeleton body 21 through the first pin shaft 106, that is, the first end plate 105 is rotatable relative to the first skeleton body 21, the second push plate 103 is connected to the second skeleton body 22 through the second end plate 107, the second end plate 107 is rotatable relative to the second skeleton body 22, and the back plate 104 has no direct connection with the first skeleton body 21 and the second skeleton body 22. With this arrangement, when the first frame body 21 and the second frame body 22 are retracted inwardly, it is actually the relative rotation of the end plates that pushes the first push plate 102 and the second push plate 103 to rotate, thereby moving the back plate 104 outwardly.

[0057] In this embodiment, the push assembly 1 is connected to the end face of the frame body through the end plate, rather than directly connected to the outer wall or inner wall of the frame body, which provides higher flexibility and adaptability. This arrangement allows the push assembly 1 to adapt to different movements and deformations through the relative rotation of the end plate when the frame body is retracted inward, without the need for complex adjustments to the frame body itself. The connection and assembly process between the push assembly 1 and the frame body is simplified by connecting the end plate and the frame body with a pin. The pin connection is a simple and effective connection method that can be easily disassembled and assembled, and also provides the necessary rotational freedom. The push assembly 1 is arranged on the end face of the frame body as a whole, making the force transmission more direct and effective. When the frame body is retracted inward, the relative rotation of the end plate pushes the first push plate 102 and the second push plate 103 to rotate, thereby moving the back plate 104 outward. This arrangement helps to maintain the stability of the structure, especially when bearing force and deformation. Moreover, since the end plate fits the end face of the frame body and is connected by a pin, this arrangement reduces the friction and wear between the end plate and the frame body during the movement, thereby extending the service life of the components. In addition, when the first skeleton body 21 and the second skeleton body 22 are retracted inward, the relative rotation of the end plates directly pushes the first push plate 102 and the second push plate 103. This arrangement optimizes the force transmission path, making the force transmission more uniform and effective, and reducing structural damage caused by uneven force transmission.

[0058] As a specific implementation manner, the two ends of the back plate 104 are hinged to the first push plate 102 and the second push plate 103 respectively through hinge columns 191, and mounting platforms 192 are respectively provided at the two ends of the back plate 104. The hinge column 191 is installed on the mounting platform 192, and an annular protrusion 193 is provided at the top of the hinge column 191. The ends of the first push plate 102 and the second push plate 103 connected to the hinge column 191 are respectively provided with hinge holes 194, and the hinge holes 194 are provided with annular grooves. During the installation process of the push assembly 1: the hinge holes 194 of the first push plate 102 and the second push plate 103 are aligned with the hinge columns 191, the notches of the first push plate 102 and the second push plate 103 are matched with each other and pressed into the mounting platform 192, the annular protrusion 193 of the hinge column 191 and the annular groove of the hinge hole 194 are matched and fixed so that the three cannot be loosened and circumferential rotational movement can be retained; the assembled push assembly 1 is installed on the skeleton body, the circular hole of the end plate of the push assembly 1 corresponds to the pin shaft, and the end plate is installed on the pin shaft.

[0059] See also Figures 1 to 7 As shown, the first wire-passing groove 101 includes a first wire-dividing groove 111 and a second wire-dividing groove 112, and a first baffle plate 141, a second baffle plate 142 and a third baffle plate 143 are provided on the outer side of the first back plate 104, and a first wire-dividing groove 111 is formed between the first baffle plate 141 and the second baffle plate 142, and a second wire-dividing groove 112 is formed between the second baffle plate 142 and the third baffle plate 143.

[0060] Specifically, the outer side of the first back plate 104 is the opposite side of the first skeleton body 21 and the second skeleton body 22 that are folded inward. When multiple skeleton structures are provided, the side of the second skeleton body 22 of the first skeleton structure away from the first skeleton body 21 is connected to the first skeleton body 21 of the second skeleton structure through the push assembly 1, and the multiple skeleton structures are connected in sequence. Since the first coil is wound on the first skeleton body 21 of the first skeleton structure, the first coil must cross the second skeleton body 22 to be wound on the first skeleton body 21 of the second skeleton structure. Similarly, the second coil wound on the second skeleton body 22 of the first skeleton structure must cross the first skeleton body 21 of the second skeleton structure to be wound on the second skeleton body 22 of the second skeleton structure. In this way, two wires are actually required to be wound into two coils, and the winding directions of the two coils are the same. The coils of the two coils must pass through the first wire groove 101 to exit the wire, and the wire body wound to the back plate 104, the wire body 401 of the first coil exits from the first branching groove 111, and the wire body 402 of the second coil exits from the second branching groove 112.

[0061] In this embodiment, by setting the first branching groove 111 and the second branching groove 112, a clear outlet path can be provided for the wires of different coils, so that the winding of the coils is more orderly, and the crossing and confusion between the coils are reduced. The clear branching groove setting helps to improve the efficiency of coil winding, and the path of the wire body can be identified more quickly during the winding process, reducing errors and rework during the winding process. By setting the baffle plate on the outside of the first back plate 104, the wire body can be better fixed and protected, and the vibration and displacement of the wire body during the operation of the motor can be reduced, thereby improving the stability and reliability of the motor. In addition, the setting of the branching groove helps to protect the wire body and avoid unnecessary damage to the wire body during the winding process. In particular, when the coil crosses the skeleton body, the branching groove can guide the wire body to transition smoothly, reducing the friction and collision between the wire body and the skeleton or other hard objects.

[0062] See also Figure 1 , Figures 8 to 13 As shown, the first skeleton body 21 and the second skeleton body 22 both include an upper skeleton 201 and a lower skeleton 202, a first plug-in step 204 is provided at the bottom of the upper skeleton 201, and a second plug-in step 205 is provided at the top of the lower skeleton 202, the first plug-in step 204 is plugged into the second plug-in step 205 to form a stator core accommodating cavity 203 between the inner cavity of the upper skeleton 201 and the inner cavity of the lower skeleton 202.

[0063] Specifically, when the skeleton structure is installed on the stator core 3, the upper skeleton 201 is inserted into the slot of the stator core 3 from above until the skeleton completely covers the upper half of the tooth portion of the stator core 3, and the lower skeleton 202 is inserted into the slot of the stator core 3 from below until the skeleton completely covers the lower half of the tooth portion of the stator core 3. When the upper skeleton 201 and the lower skeleton 202 overlap, the first plug-in step 204 is inserted into the second plug-in step 205. After the two are plugged in, a stator core accommodating cavity 203 is formed between the inner cavity of the upper skeleton 201 and the inner cavity of the lower skeleton 202, and the stator core accommodating cavity 203 is used to wrap the tooth portion of the stator core 3.

[0064] In this embodiment, by the plug-in setting of the upper frame 201 and the lower frame 202, the position of the frame structure relative to the stator core 3 can be accurately positioned to ensure that the frame completely wraps the teeth of the stator core 3. The plug-in method of the first plug-in step 204 and the second plug-in step 205 enhances the stability of the frame structure. By adjusting the setting of the plug-in steps, the frame structure can adapt to stator cores 3 of different sizes, thereby increasing the flexibility and versatility of the setting.

[0065] See also Figure 1 , Figures 8 to 13As shown, the first plug-in step 204 has a plug-in portion 206 , and the second plug-in step 205 has a male plug-in portion 207 . The plug-in portion 206 is plugged into the male plug-in portion 207 , and the plug-in length of the plug-in portion 206 inserted into the male plug-in portion 207 is adjustable.

[0066] Specifically, the plug-in portion 206 protrudes from the first plug-in step 204, and the male plug-in portion 207 is recessed in the second plug-in step 205. The first plug-in step 204 is inserted into the second plug-in step 205, and the plug-in portion 206 is plugged into the male plug-in portion 207. That is, in this embodiment, not only the first plug-in step 204 is inserted into the second plug-in step 205, but the plug-in portion 206 is also plugged into the male plug-in portion 207. The stator core 3 is formed by laminating silicon steel sheets. The thickness of the stator core 3 can be different. The plug-in portion 206 is inserted into the male plug-in portion 207. The plug-in length of 7 determines the length of the first plug-in step 204 inserted into the second plug-in step 205, which also determines the volume of the stator core accommodating cavity 203. If the stator core 3 is thicker, the plug-in length of the plug-in portion 206 inserted into the male plug-in portion 207 is shorter, and the stator core accommodating cavity 203 can wrap the stator core 3 with a thicker thickness. If the stator core 3 is thinner, the plug-in length of the plug-in portion 206 inserted into the male plug-in portion 207 is longer, and the stator core accommodating cavity 203 can wrap the stator core 3 with a thinner thickness.

[0067] In this embodiment, through the adjustable plug-in length, the connection between the first plug-in step 204 and the second plug-in step 205 can adapt to stator cores 3 of different thicknesses, thereby improving the versatility and adaptability of the skeleton structure. By adjusting the length of the plug-in portion 206 inserted into the male plug-in portion 207, the volume of the stator core accommodating cavity 203 can be accurately controlled to ensure that the skeleton structure tightly wraps the stator core 3, thereby improving the stability and protection performance of the structure. The adjustable plug-in length makes the installation process more flexible and can be adjusted according to the actual thickness of the stator core 3 to ensure a close fit between the skeleton structure and the core. The adjustable plug-in length reduces the material waste caused by the fixed-size skeleton structure not being suitable for cores of different thicknesses, thereby improving the utilization rate of the material.

[0068] See also Figure 1 , Figures 8 to 13 As shown, in the plug-in direction of the upper frame 201 and the lower frame 202, the outer edge of the plug-in portion 206 is provided with a plurality of sawtooth structures 208, and the male plug-in portion 207 is provided with a plurality of tooth grooves 209. The sawtooth structures 208 can be plugged with the tooth grooves 209 at different height directions.

[0069] Specifically, the insertion length of the plug-in portion 206 into the male plug-in portion 207 determines the length of the first plug-in step 204 inserted into the second plug-in step 205, and thus determines the volume of the stator core accommodating cavity 203. Although the insertion of the first plug-in step 204 into the second plug-in step 205 can ensure the connection stability of the skeleton structure, the provision of the sawtooth structure 208 and the tooth slot 209 can better engage, so that the upper skeleton 201 is not easy to be loosened from the lower skeleton 202. If the thickness of the stator core 3 is relatively thick, the insertion length of the plug-in portion 206 into the male plug-in portion 207 is relatively short, and the sawtooth structure 208 is plugged into part of the tooth slot 209; if the thickness of the stator core 3 is relatively thin, the insertion length of the plug-in portion 206 into the male plug-in portion 207 is relatively long, and the sawtooth structure 208 is plugged into most of the tooth slots 209.

[0070] In this embodiment, the arrangement of the sawtooth structure 208 and the tooth slots 209 provides multiple contact points, which can better clamp the upper frame 201 and the lower frame 202, making them less likely to loosen, thereby enhancing the connection stability of the skeleton structure. By plugging the sawtooth structure 208 with the tooth slots 209 in different height directions, it can adapt to stator cores 3 of different thicknesses. This arrangement allows the skeleton structure to be fine-tuned according to the actual thickness of the core to ensure optimal wrapping and protection. The cooperation of the sawtooth structure 208 and the tooth slots 209 provides additional mechanical locking, reducing the dislocation or separation of the skeleton structure caused by vibration or external force, thereby improving the durability of the entire motor structure. The sawtooth structure 208 provides multiple plug-in options, so that the skeleton structure can flexibly adapt to stator cores 3 of different sizes and shapes, increasing the versatility of the arrangement.

[0071] As a specific implementation method, the number of serration structures 208 is the same as the number of tooth grooves 209, and the two can be used in conjunction with each other better. The tooth grooves 209 are opened along the height direction of the lower frame 202. The second plug-in step 205 is a step structure formed by thinning the frame wall, and the first plug-in step 204 is also a step structure formed by thinning the wall. When the first plug-in step 204 and the second plug-in step 205 are plugged in, the inner wall of the first plug-in step 204 abuts against the outer wall of the second plug-in step 205, and the serration structure 208 is plugged in with the tooth grooves 209.

[0072] See also Figure 1 , Figures 8 to 13 As shown, a second wire groove 211 is provided on the first skeleton body 21, and a third wire groove 221 is provided on the second skeleton body 22. The wire body 401 of the first coil passes through the first wire groove 101 and the third wire groove 221 in sequence, or the wire body 402 of the second coil passes through the first wire groove 101 and the second wire groove 211 in sequence.

[0073] Specifically, in this embodiment, not only is the first wire passing groove 101 provided on the back plate 104, but since the wire body 401 of the first coil and the wire body 402 of the second coil will inevitably pass through the skeleton body, a second wire passing groove 211 is provided on the first skeleton body 21, and a third wire passing groove 221 is provided on the second skeleton body 22. The wire body 401 of the first coil passes through the first wire passing groove 101 and the third wire passing groove 221 in sequence, and after the wire is output, the wire body 401 of the first coil crosses the adjacent second skeleton body 22 and is wound around the adjacent first skeleton body 21. Similarly, the wire body 402 of the second coil passes through the first wire passing groove 101 and the second wire passing groove 211 in sequence, and after the wire is output, the wire body 402 of the second coil crosses the adjacent first skeleton body 21 and is wound around the adjacent second skeleton body 22.

[0074] In this embodiment, by respectively providing a second wire passing groove 211 and a third wire passing groove 221 on the first skeleton body 21 and the second skeleton body 22, when the wire body passes through the skeleton body, the setting of the wire passing groove can protect the wire body from damage by the edge of the skeleton or other hard objects, reducing the risk of wear and breakage. At the same time, the wire passing grooves are provided on the skeleton body and the pushing assembly 1, which can provide a clear and orderly routing path for the wire body of the coil, reduce the confusion and crossing of the coil winding, allow the coil to cross and wind between different skeleton bodies, and adapt to different winding settings and motor structure requirements.

[0075] As a specific implementation, the upper frame 201 and the lower frame 202 both include a winding portion 233, an inner plate 231 and an outer plate 232, the inner plate 231 and the outer plate 232 are respectively arranged on both sides of the winding portion 233, the outer edges of the inner plate 231 and the outer plate 232 extend out of the winding portion 233, and a winding groove is formed between the inner plate 231, the winding portion 233 and the outer plate 232. When the upper frame 201 and the lower frame 202 are plugged in, The inner plate 231, winding part 233 and outer plate 232 of the upper frame 201 are arranged correspondingly to the inner plate 231, winding part 233 and outer plate 232 of the lower frame 202 to form a complete frame body. A radially outward protective plate 234 is arranged on the outer plate 232, and the protective plate 234 covers the yoke surface of the stator core 3. The coil is wound on the winding part 233, and the inner plate 231 and the outer plate 232 respectively press against the two ends of the coil. The winding part 233, the inner plate 231 and the outer plate 232 are symmetrically arranged about the central axis of the height direction of the winding part 233, and the first plug-in step 204 extends from the bottom of the inner plate 231 of the upper frame 201 to the bottom of the winding part 233 and the bottom of the outer plate 232 in sequence, and the second plug-in step 205 extends from the bottom of the inner plate 231 of the lower frame 202 to the bottom of the winding part 233 and the bottom of the outer plate 232 in sequence. The first plug-in step 204 and the second plug-in step 205 are relatively arranged.

[0076] As a specific implementation, the protective plate 234 of the upper frame 201 is provided with an inner baffle plate 235 and an outer baffle plate 236, a second wire groove 211 is formed between the inner baffle plate 235 and the outer baffle plate 236 of the first frame body 21, and a third wire groove 221 is formed between the inner baffle plate 235 and the outer baffle plate 236 of the second frame body 22. The first pin 106 is provided on the protective plate 234 on the first frame body 21, and the second pin 108 is provided on the protective plate 234 on the second frame body 22. The top of the pin is provided with a conical portion to facilitate the installation and insertion of the push assembly 1, and the lower portion of the pin is slightly larger than the mounting hole on the end plate, which can effectively prevent the push assembly 1 from loosening.

[0077] As a specific implementation, the first end plate 105 is connected to the top of the upper frame 201 of the first frame body 21 via a first pin 106 , and the second end plate 107 is connected to the top of the upper frame 201 of the second frame body 22 via a second pin 108 .

[0078] See also Figure 1 , Figures 8 to 17 As shown, in the plug-in direction of the upper skeleton 201 and the lower skeleton 202, the height of the inner cavity of the upper skeleton 201 is H1, the height of the plug-in portion 206 is C, the height of the single serrated structure 208 is D, the heights of the first plug-in step 204 and the second plug-in step 205 are both T, the height of the inner cavity of the lower skeleton 202 is H2, the set thickness of the stator core 3 is L, the minimum thickness of the stator core 3 that can be installed in the stator core accommodating cavity 203 is L', the maximum thickness of the stator core 3 that can be installed in the stator core accommodating cavity 203 is L", the minimum thickness satisfies: L'=H1+H2-T, the maximum thickness L" satisfies: L"=H1+H2-T+(C-1.5D), and the set thickness L satisfies: L'≤L≤L".

[0079] In this embodiment, the set thickness of the stator core 3 can be selected between the maximum thickness L" and the minimum thickness L'. The thickness of the stator core 3 that can be installed in the skeleton body is inseparable from the inner cavity of the skeleton body and the height of the plug-in step. Compared with only being able to install a stator core 3 of the same thickness, this embodiment can flexibly adjust the stator core accommodating cavity 203 by setting a sawtooth structure 208 and a slot, so as to install stator cores 3 of different thicknesses. This can ensure that the skeleton structure can adapt to stator cores 3 of different thicknesses within a specific range. Combined with the height value of the relevant structure, different thickness selection values ​​can be met, which provides flexibility and allows the use of cores of different thicknesses while ensuring that the cores are correctly fixed in place.

[0080] See also Figures 18 to 20As shown, a stator assembly includes a stator core 3 and multiple skeleton structures, the skeleton structure is the above-mentioned skeleton structure, the stator core 3 is a straight bar core, the stator core 3 includes multiple stator core units 301 connected in sequence along a straight line direction, the first skeleton body 21 and the second skeleton body 22 of the multiple skeleton structures are respectively installed on the stator core unit 301, and the side of the second skeleton body 22 away from the first skeleton body 21 is connected to the first skeleton body 21 of the adjacent skeleton structure through a pushing assembly 1, when the stator assembly is connected end to end from a straight bar and shaped into a circular ring, the first direction is the radial direction of the stator assembly, the multiple stator core units 301 are radially retracted inward, the first skeleton body 21 and the second skeleton body 22 are retracted inward, and the components of the skeleton body and the pushing assembly 1 are injection molded of nylon and processed to a certain extent, and have certain mechanical strength and good elasticity.

[0081] Specifically, the stator core 3 includes a tooth portion and a yoke portion, and the yoke portion forms the outer circle of the stator core 3. When the stator assembly is in a straight bar shape, the upper frame 201 and the lower frame 202 are inserted into each other, and the upper frame 201 and the lower frame 202 wrap the tooth portion of the stator core 3. The first end plate 105 is connected to the first pin shaft 106, and the second end plate 107 is connected to the second pin shaft 108. The push assembly 1 is installed as a whole on the top surface of the upper frame 201, and the first coil and the second coil are wound on the frame body. The wire body 401 of the first coil is arranged according to The wire 402 of the second coil passes through the first wire slot 101 and the second wire slot 211 in turn; when the stator assembly is shaped into a circular ring, the stator core units 301 at both ends of the stator assembly are connected, and the teeth of the stator core 3 are facing the center of the stator core 3. The first push plate 102 and the second push plate 103 push the back plate 104 to move radially outward, and the wire bodies in the first wire slot 101, the second wire slot 211 and the third wire slot 221 are straightened.

[0082] In this embodiment, when the stator assembly is transformed from a straight bar state to a circular state through rounding, this setting can adapt to the shape change, maintain the tension and position of the wire body, and ensure that the wire body will not be displaced due to the shape change. Through the setting of the push assembly 1, the displacement of the wire body due to shape change can be reduced during the rounding process of the stator assembly, thereby avoiding the problem of the bridge wire body being connected to the iron core outside or being pinched by the iron core rounding. The two ends of the push assembly 1 are rotatably connected to the first and second skeleton bodies 22. When the skeleton body is retracted inward, the push assembly 1 pushes the wire body outward, so that the wire body is tightened in the wire slot, which enhances the fixation and stability of the coil and reduces the risk of the wire body being loose and hanging out of the slot.

[0083] It is worth noting that, in conjunction with Fig.21 and Fig. 22In the process of the stator assembly forming a circle, the force process of the push assembly 1 is as follows: when the stator assembly is wound in a straight state, the wire body 401 of the first coil and the wire body 402 of the second coil are routed through the first wire groove 101 of the push assembly 1. When forming a circle, the adjacent frame bodies make a circular motion around the vertex D. The component 1 / 2 of the push assembly 1 will be subjected to the thrust F from the upper frame 201 toward the inside, and the component force is F 分 , force F 分 It will be transferred to the back plate 104, and further generate a component force f in the direction of the vertical component entity. Under the influence of this, the pushing assembly 1 as a whole will move toward the outer edge of the yoke of the stator core 3, pushing the wire connection of the coil outward and keeping it properly taut during the rounding process, thereby effectively solving a series of quality problems caused by loose inter-slot connections after the stator is rounded.

[0084] A motor comprises the above-mentioned stator assembly or the above-mentioned skeleton structure.

[0085] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0086] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention. The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention, and these improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. A skeleton structure, characterized in that: include: A push assembly (1) and a frame assembly; The skeleton assembly comprises a first skeleton body (21) and a second skeleton body (22); the first skeleton body (21) is wound with a first coil, and the second skeleton body (22) is wound with a second coil; One end of the pushing assembly (1) is rotatably connected to the first frame body (21), and the other end of the pushing assembly (1) is rotatably connected to the second frame body (22). The pushing assembly (1) is provided with a first wire passing groove (101), and the wire body (401) of the first coil or the wire body (402) of the second coil is led out through the first wire passing groove (101); In a first direction, when the first skeleton body (21) and the second skeleton body (22) are retracted inward, the first skeleton body (21) and the second skeleton body (22) push the pushing assembly (1) to move outward, and the pushing assembly (1) is used to tighten the wire body (401) of the first coil or the wire body (402) of the second coil.

2. The skeleton structure according to claim 1, characterized in that: The first skeleton body (21) is provided with a second wire passing groove (211), and the second skeleton body (22) is provided with a third wire passing groove (221); the wire body (401) of the first coil passes through the first wire passing groove (101) and the third wire passing groove (221) in sequence to be output, or the wire body (402) of the second coil passes through the first wire passing groove (101) and the second wire passing groove (211) in sequence to be output.

3. The skeleton structure according to claim 1, characterized in that: The push assembly (1) comprises a first push plate (102), a second push plate (103) and a back plate (104); two ends of the back plate (104) are rotatably connected to the first push plate (102) and the second push plate (103), respectively; one end of the first push plate (102) away from the back plate (104) is rotatably connected to the first skeleton body (21); one end of the second push plate (103) away from the back plate (104) is rotatably connected to the second skeleton body (22); the first push plate (102) and the second push plate (103) push the back plate (104) to be movably arranged; and the first wire groove (101) is arranged on the back plate (104).

4. The skeleton structure according to claim 3, characterized in that: A first end plate (105) is provided on the inner wall of one end of the first push plate (102) away from the back plate (104), and the first end plate (105) is connected to the end surface of the first skeleton body (21) via a first pin shaft (106). A second end plate (107) is provided on the inner wall of one end of the second push plate (103) away from the back plate (104), and the second end plate (107) is connected to the end surface of the second skeleton body (22) via a second pin shaft (108).

5. The skeleton structure according to claim 3, characterized in that: The first wire-passing groove (101) comprises a first wire-dividing groove (111) and a second wire-dividing groove (112); a first baffle plate (141), a second baffle plate (142) and a third baffle plate (143) are arranged on the outer side of the first back plate (104); the first wire-dividing groove (111) is formed between the first baffle plate (141) and the second baffle plate (142); and the second wire-dividing groove (112) is formed between the second baffle plate (142) and the third baffle plate (143).

6. The skeleton structure according to any one of claims 1 to 5, characterized in that: The first skeleton body (21) and the second skeleton body (22) both include an upper skeleton (201) and a lower skeleton (202); a first plug-in step (204) is provided at the bottom of the upper skeleton (201), and a second plug-in step (205) is provided at the top of the lower skeleton (202); the first plug-in step (204) is plugged into the second plug-in step (205) to form a stator core accommodating cavity (203) between the inner cavity of the upper skeleton (201) and the inner cavity of the lower skeleton (202).

7. The skeleton structure according to claim 6, characterized in that: The first plug-in step (204) has a plug-in portion (206), and the second plug-in step (205) has a male plug-in portion (207). The plug-in portion (206) is plugged into the male plug-in portion (207), and the plug-in length of the plug-in portion (206) inserted into the male plug-in portion (207) is adjustable.

8. The skeleton structure according to claim 7, characterized in that: In the plug-in direction of the upper frame (201) and the lower frame (202), the outer edge of the plug-in portion (206) is provided with a plurality of sawtooth structures (208), and the male plug-in portion (207) is provided with a plurality of tooth grooves (209), and the sawtooth structures (208) can be plugged with the tooth grooves (209) in different height directions.

9. The skeleton structure according to claim 8, characterized in that: In the plug-in direction of the upper frame (201) and the lower frame (202), the height of the inner cavity of the upper frame (201) is H1, the height of the plug-in portion (206) is C, the height of a single sawtooth structure (208) is D, the heights of the first plug-in step (204) and the second plug-in step (205) are both T, the height of the inner cavity of the lower frame (202) is H2, the set thickness of the stator core (3) is L, the minimum thickness of the stator core (3) that can be installed in the stator core accommodating cavity (203) is L', the maximum thickness of the stator core (3) that can be installed in the stator core accommodating cavity (203) is L", the minimum thickness satisfies: L'=H1+H2-T, the maximum thickness L" satisfies: L"=H1+H2-T+(C-1.5D), and the set thickness L satisfies: L'≤L≤L".

10. A stator assembly, comprising a stator core (3) and a plurality of skeleton structures, characterized in that: The skeleton structure is the skeleton structure described in any one of claims 1 to 9, the stator core (3) is a straight bar core, and the stator core (3) includes a plurality of stator core units (301) connected in sequence along a straight line direction, a plurality of first skeleton bodies (21) and a second skeleton body (22) of the skeleton structure are respectively mounted on the stator core unit (301), and a side of the second skeleton body (22) away from the first skeleton body (21) is connected to the first skeleton body (21) of the adjacent skeleton structure through the pushing assembly (1), when the stator assembly is connected end to end from a straight bar shape and shaped into a circular ring shape, the first direction is the radial direction of the stator assembly, a plurality of the stator core units (301) are radially retracted inward, and the first skeleton body (21) and the second skeleton body (22) are retracted inward.

11. A motor, characterized in that: The invention comprises the stator assembly according to claim 10 or the skeleton structure according to any one of claims 1 to 9.

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