Stator universal for upper framework and lower framework

Abstract

The utility model discloses a stator with universal upper and lower skeletons, and aims to provide a stator skeleton assembly in which two skeletons can be universal and only one skeleton mold needs to be arranged, so that the manufacturing cost is reduced, the later production management of the skeleton mold is facilitated, and the problem that the production cost is reduced due to the matching of the two skeleton molds is effectively solved. And the matching reject ratio of the two frameworks is increased. The stator comprises a stator framework assembly, the stator framework assembly comprises two frameworks of the same structure, each framework comprises an annular framework and a plurality of axial plug-ins which are arranged on the annular framework and sequentially distributed in the circumferential direction of the stator, the axial plug-ins extend in the axial direction of the stator, and each axial plug-in is internally provided with a framework winding groove; the ends of half of the axial plug-ins of the same framework are provided with female plugs, the ends of the other half of the axial plug-ins of the same framework are provided with male plugs, and the two frameworks are connected in an inserted mode through the male plugs and the female plugs of the axial plug-ins.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor stator field, concretely relates to a kind of stator of upper and lower framework general. BACKGROUND

[0002] The stator framework of current motor stator is generally connected by upper and lower two frameworks.Currently, the structure of the upper and lower two frameworks of the stator framework of motor stator is generally different, and cannot be used universally, so it needs to be made separately, that is, two framework molds need to be made, which not only increases the production cost and the investment in early development, but also increases the production management cost due to the additional framework mold in the later production management, and the cooperation of the two framework molds also increases the problem of the cooperation failure rate of the upper and lower frameworks. CONTENT OF UTILITY MODEL

[0003] The utility model aims at providing a kind of stator of upper and lower framework general, the two frameworks of the stator framework assembly can be used universally, only one framework mold needs to be set up, so as to reduce the production cost, facilitate the later production management of framework mold, and effectively solve the problem of the cooperation failure rate of the two frameworks due to the cooperation of the two framework molds.

[0004] The technical scheme of the utility model is:

[0005] A kind of stator of upper and lower framework general, including stator framework assembly, the stator framework assembly includes two frameworks with same structure, the framework includes annular framework and a plurality of axial inserts arranged on annular framework and sequentially distributed around the stator, the axial insert extends along the stator axis, and the axial insert is provided with framework winding slot, and the framework winding slot extends along the stator axis and penetrates the axial insert and annular framework;The end of one half of the axial insert of each axial insert of the same framework is provided with female plug, and the end of the other half of the axial insert is provided with male plug, and the two frameworks are connected by the male plug and female plug of the axial insert.The structure of the two frameworks of the stator framework assembly of the present scheme is the same, and the two frameworks can be used universally, specifically, since the end of one half of the axial insert of each axial insert of the same framework is provided with female plug, and the end of the other half of the axial insert is provided with male plug;In this way, when the two frameworks are connected, only one of the two frameworks needs to be rotated around the stator axis by a certain angle, so that the male plug and female plug of the two frameworks are aligned, and then the male plug and female plug of the axial insert are connected by plugging to realize the connection of the two frameworks.Therefore, the two frameworks of the stator framework assembly of the present scheme can be used universally, only one framework mold needs to be set up, so as to reduce the production cost, facilitate the later production management of framework mold, and effectively solve the problem of the cooperation failure rate of the two frameworks due to the cooperation of the two framework molds.

[0006] As preferred, the skeleton is further provided with a terminal block mounting structure for mounting the terminal block, the terminal block mounting structure comprises a plurality of support posts and a plurality of hooks, the support posts and the hooks are arranged on the annular skeleton and away from the axial inserts, the hooks extend along the axial direction of the stator, the support posts extend along the axial direction of the stator, the end of the support post is provided with a positioning pin, and a stepped surface is arranged between the support post and the positioning pin. According to the scheme, the terminal block can be directly mounted on the skeleton through the terminal block mounting structure. Specifically, the terminal block is supported on the stepped surface of each support post, the positioning pin is inserted into the positioning hole of the terminal block, and the hooks are buckled on the stepped surface to facilitate the direct mounting of the terminal block on the skeleton. In this way, the compactness of the motor structure can be effectively improved, and the length of the wire can be shortened.

[0007] As preferred, the scheme further comprises two terminal blocks corresponding to the skeletons, the terminal blocks are provided with a plurality of positioning holes corresponding to the positioning pins, the terminal blocks are mounted on the terminal block mounting structures of the corresponding skeletons, the terminal blocks are supported on the stepped surfaces of the support posts, the positioning pins are inserted into the positioning holes, and the hooks are buckled on the stepped surfaces.

[0008] As preferred, the hook comprises an elastic arm extending along the axial direction of the stator and a clamping block arranged at the end of the elastic arm, the side of the clamping block facing the annular skeleton is an abutting inclined surface matched with the terminal block, and the distance between the abutting inclined surface and the stepped surface gradually decreases from the center of the stator to the outside. When the hook is buckled on the stepped surface, a gap may exist between the terminal block and the clamping block of the hook, which may cause the terminal block to move along the axial direction of the stator, affecting the connection stability of the wire and the terminal block, and even causing the connection structure of the wire and the terminal block to break. In order to avoid the movement of the terminal block along the axial direction of the stator, the side of the clamping block facing the annular skeleton is arranged as an abutting inclined surface matched with the terminal block, and the distance between the abutting inclined surface and the stepped surface gradually decreases from the center of the stator to the outside. In this way, when the hook is buckled on the stepped surface, the abutting inclined surface will be abutted on the edge of the terminal block under the action of the elastic arm, and the terminal block will be pressed on the stepped surface, thereby eliminating the gap between the terminal block and the clamping block of the hook, so as to avoid the movement of the terminal block along the axial direction of the stator, affecting the connection stability of the wire and the terminal block, and even causing the connection structure of the wire and the terminal block to break.

[0009] As preferred, the scheme further comprises a stator core, the stator core is provided with a plurality of core winding grooves arranged in sequence along the circumferential direction, the core winding grooves extend along the axial direction of the stator and penetrate the stator core, the core winding grooves correspond to the axial inserts on the same skeleton one by one, the axial inserts are inserted into the corresponding core winding grooves, and the stator core is located between the annular skeletons of the two skeletons.

[0010] As preferred, at least one of the axial inserts on the skeleton is provided with a positioning protrusion, the positioning protrusion is close to the annular skeleton, the inner side end of the iron core is provided with a positioning groove matched with the positioning protrusion, and one end of the positioning groove is communicated with the end surface of the iron core. In this way, the iron core can be positioned through the cooperation of the positioning protrusion and the positioning groove.

[0011] As preferred, the female plug is formed by extending outward from the end of the axial insert, the wire slot of the skeleton penetrates through the female plug, the male plug is formed by extending outward from the end of the axial insert, and the wire slot of the skeleton penetrates through the male plug. In this way, the actual manufacturing of the female plug and the male plug is facilitated, and the male plug and the female plug can be integrally manufactured with the skeleton.

[0012] As preferred, the inner wall of the wire slot of the skeleton in the axial insert is provided with wire blocking protrusions on both sides close to the slot opening, and the wire blocking protrusions extend along the axial direction of the stator. In this way, the coils wound in the wire slot of the skeleton can be limited by the wire blocking protrusions, so that the coils are prevented from falling out of the slot opening of the wire slot of the skeleton.

[0013] As preferred, the annular skeleton is provided with annular wire slots at the end away from the axial insert, and each annular wire slot is communicated with the annular wire slot. In this way, after the coils of the stator are wound, the coils can be accommodated in the annular wire slots and the wire slots of the skeleton.

[0014] As preferred, the annular skeleton of the skeleton is integrally formed with each axial insert. In this way, the actual processing and manufacturing of the skeleton are facilitated.

[0015] The utility model discloses a kind of stator skeleton assemblies, which comprises two skeletons, and the two skeletons are integrally connected by axial insert. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic diagram of the utility model of a kind of upper and lower skeleton universal stator.

[0017] Figure 2 It is the explosion view of the utility model of a kind of upper and lower skeleton universal stator of stator skeleton assembly.

[0018] Figure 3 It is the assembly drawing of the utility model of a kind of upper and lower skeleton universal stator of stator skeleton assembly.

[0019] Figure 4 It is a kind of local enlarged view of the utility model of a kind of upper and lower skeleton universal stator of terminal block mounting structure.

[0020] In the drawing:

[0021] skeleton 1, annular skeleton 1.1, axial insert 1.2, female plug 1.3, male plug 1.4, skeleton wire slot 1.5, wire blocking bump 1.6, positioning protrusion 1.7, annular wire slot 1.8;

[0022] stator core 2;

[0023] terminal board 3;

[0024] terminal board mounting structure 4, support 4.1, clamping hook 4.2, elastic arm 4.21, clamping block 4.22, abutting inclined surface 4.23, positioning pin 4.3, stepped surface 4.4. DETAILED DESCRIPTION

[0025] Specific embodiment one, as shown in Figure 1 、 Figure 2 、 Figure 3 A universal stator for up and down skeletons includes a stator skeleton assembly. The stator skeleton assembly includes two skeletons 1 which are structurally identical. The skeleton 1 includes an annular skeleton 1.1 and a plurality of axial inserts 1.2 arranged on the annular skeleton 1.1. The number of axial inserts 1.2 is determined according to the specific structure of the stator. In this embodiment, the number of axial inserts 1.2 is an even number, for example, the number of axial inserts 1.2 is 4 or 6 or 8 or 10 or more. Each axial insert 1.2 on the same skeleton 1 is uniformly distributed in sequence around the circumference of the stator. The axial insert 1.2 extends along the axial direction of the stator. Each axial insert 1.2 is provided with a skeleton wire slot 1.5, which extends along the axial direction of the stator and penetrates the axial insert 1.2 and the annular skeleton 1.1. Half of the axial inserts 1.2 on the same skeleton 1 are provided with female plugs 1.3 at the end, and the other half of the axial inserts 1.2 are provided with male plugs 1.4 at the end. Two skeletons 1 are connected by the male plugs 1.4 and female plugs 1.3 of the axial inserts 1.2. When the two skeletons 1 are connected, one of the two skeletons 1 is rotated around the stator axis by a certain angle, so that the male plugs 1.4 and female plugs 1.3 of the two skeletons 1 are aligned, and the two skeletons 1 are connected by the male plugs 1.4 and female plugs 1.3 of the axial inserts 1.2.

[0026] The two stator frame assemblies of the embodiment are identical in structure, and the two stator frames 1 can be universal. Specifically, half of the axial inserts 1.2 of the same stator frame 1 are provided with female plugs 1.3 at the end, and the other half of the axial inserts 1.2 are provided with male plugs 1.4 at the end. In this way, when the two stator frames 1 are connected, only one of the two stator frames 1 needs to be rotated around the stator axis by a certain angle, so that the male plugs 1.4 and the female plugs 1.3 of the two stator frames 1 are aligned, and then the male plugs 1.4 and the female plugs 1.3 of the axial inserts 1.2 are connected by plug-in connection, so as to realize the connection of the two stator frames 1. Thus, the two stator frames 1 of the stator frame assembly of the present scheme can be universal, and only one stator frame 1 mold needs to be opened, thereby reducing the manufacturing cost; only one stator frame 1 mold needs to be managed in the later production management process, which is convenient for the later production management of the stator frame 1 mold and reduces the production management cost; and the problem of increased poor matching rate of the two stator frames 1 due to the matching of the two stator frames 1 molds can be effectively solved.

[0027] Specifically, as shown in Figure 1 、 Figure 2 、 Figure 3 A universal stator for upper and lower frames includes a stator frame assembly. The stator frame assembly includes two stator frames 1 which are identical in structure. The stator frame 1 includes an annular stator frame 1.1 and a plurality of axial inserts 1.2 arranged on the annular stator frame 1.1. The number of axial inserts 1.2 is determined according to the specific structure of the stator. In the present embodiment, the number of axial inserts 1.2 is an even number, for example, the number of axial inserts 1.2 is 4 or 6 or 8 or 10 or more. Each axial insert 1.2 on the same stator frame 1 is uniformly distributed in sequence around the stator circumference. The axial insert 1.2 extends along the stator axis. Each axial insert 1.2 is provided with a stator winding slot 1.5 which extends along the stator axis and penetrates the axial insert 1.2 and the annular stator frame 1.1. The annular stator frame 1.1 and the axial inserts 1.2 of the stator frame 1 are integrally formed. In this way, the actual processing and manufacturing of the stator frame 1 are facilitated.

[0028] Half of the axial inserts 1.2 of the same stator frame 1 are provided with female plugs 1.3 at the end, and the other half of the axial inserts 1.2 are provided with male plugs 1.4 at the end. The two stator frames 1 are connected by plug-in connection of the male plugs 1.4 and the female plugs 1.3 of the axial inserts 1.2.

[0029] In one embodiment, as shown in Figure 2As shown, the axial inserts 1.2 are divided into two groups, the end of each axial insert 1.2 in one group of axial inserts 1.2 is provided with a female plug 1.3, and the end of each axial insert 1.2 in the other group of axial inserts 1.2 is provided with a male plug 1.4. The number of axial inserts 1.2 in the two groups is the same and symmetrically distributed. The number of axial inserts 1.2 in each group is one or more, as shown, the number of axial inserts 1.2 in each group is three. In this embodiment, when connecting the two frames 1, one of the two frames 1 is rotated by 180 degrees around the axis of the stator, so that the male plug 1.4 and the female plug 1.3 of the two frames 1 are aligned, and the connection of the two frames 1 is realized by the connection of the male plug 1.4 and the female plug 1.3 of the axial inserts 1.2.

[0030] In another embodiment, the axial inserts 1.2 where the female plug 1.3 is located and the axial inserts 1.2 where the male plug 1.4 is located are alternately distributed in sequence. In this embodiment, when connecting the two frames 1, the two frames 1 with the same structure are rotated by a certain angle in opposite directions (for example, one of the two frames 1 is rotated by 60 degrees around the axis of the stator), so that the male plug 1.4 and the female plug 1.3 of the two frames 1 are aligned, and the connection of the two frames 1 is realized by the connection of the male plug 1.4 and the female plug 1.3 of the axial inserts 1.2.

[0031] Of course, it is also possible that the two axial inserts 1.2 where the two female plugs 1.3 are located are a group and the two axial inserts 1.2 where the two male plugs 1.4 are located are a group, which are alternately distributed in sequence. Similarly, when connecting the two frames 1, the two frames 1 with the same structure are rotated by a certain angle in opposite directions, so that the male plug 1.4 and the female plug 1.3 of the two frames 1 are aligned, and the connection of the two frames 1 is realized by the connection of the male plug 1.4 and the female plug 1.3 of the axial inserts 1.2.

[0032] The two stator frame assemblies of the embodiment are identical in structure, and the two stator frames 1 can be universal. Specifically, half of the axial inserts 1.2 of the same stator frame 1 are provided with female plugs 1.3 at the end thereof, and the other half of the axial inserts 1.2 are provided with male plugs 1.4 at the end thereof. In this way, when the two stator frames 1 are connected, only one of the two stator frames 1 needs to be rotated around the stator axis by a certain angle, so that the male plugs 1.4 and the female plugs 1.3 of the two stator frames 1 are aligned, and then the male plugs 1.4 and the female plugs 1.3 of the axial inserts 1.2 are connected by plug-in connection, so as to realize the connection of the two stator frames 1. Thus, the two stator frames 1 of the stator frame assembly of the present scheme can be universal, and only one stator frame 1 mold needs to be opened, thereby reducing the manufacturing cost. In the later production management process, only one stator frame 1 mold needs to be managed, which is convenient for the later production management of the stator frame 1 mold and reduces the production management cost. Moreover, the problem of increased mismatch rate of the two stator frames 1 caused by the cooperation of the two stator frame 1 molds can be effectively solved.

[0033] Specifically, as shown in Figure 1 A universal stator for the upper and lower frames further includes a stator core 2. The stator core 2 is provided with a plurality of core winding grooves which are uniformly distributed in the circumferential direction. The core winding grooves are arranged on the inner wall of the stator core 2 and are T-shaped grooves. The core winding grooves extend along the stator axis and penetrate the stator core 2. The core winding grooves correspond one-to-one to the axial inserts 1.2 on the same stator frame 1. The axial inserts 1.2 are inserted into the corresponding core winding grooves. The stator frame winding groove 1.5 corresponding to the core winding groove is also a T-shaped groove. The stator core 2 is located between the two stator frames 1.

[0034] Further, as shown in Figure 2 At least one of the axial inserts 1.2 on the stator frame 1 is provided with a positioning protrusion 1.7. The positioning protrusion 1.7 is close to the annular stator frame 1.1. In the present embodiment, the positioning protrusion 1.7 is connected to the annular stator frame 1.1. The inner side of the core is provided with a positioning groove matched with the positioning protrusion 1.7, and one end of the positioning groove is in communication with the end face of the core. In this way, the core can be positioned by the cooperation of the positioning protrusion 1.7 and the positioning groove.

[0035] Further, as shown in Figure 2 The female plug 1.3 is formed by extending outward from the end of the axial insert 1.2, and the stator frame winding groove 1.5 penetrates the female plug 1.3. The male plug 1.4 is formed by extending outward from the end of the axial insert 1.2, and the stator frame winding groove 1.5 penetrates the male plug 1.4. In this way, the actual manufacturing of the female plug 1.3 and the male plug 1.4 is facilitated, and the female plug 1.3 and the male plug 1.4 can be integrally manufactured with the stator frame 1.

[0036] Further, as shown in Figure 2As shown, the inner wall of the skeleton winding slot 1.5 in the axial insert 1.2 is provided with winding blocking protrusions 1.6 on both sides close to the slot opening, and the winding blocking protrusions 1.6 extend along the stator axis. In this way, the winding blocking protrusions 1.6 can limit the coil wound in the skeleton winding slot 1.5, so as to prevent the coil from falling out of the slot opening of the skeleton winding slot 1.5.

[0037] Further, as shown in the drawings, Figure 2 The end of the annular skeleton 1.1 away from the axial insert 1.2 is provided with an annular winding slot 1.8, and each skeleton winding slot 1.5 is connected to the annular winding slot 1.8. In this way, after the coil of the stator is wound, the coil can be accommodated in the annular winding slot 1.8 and the skeleton winding slot 1.5.

[0038] Further, as shown in the drawings, Figure 1 、 Figure 2 The universal stator for the upper and lower skeletons further includes two terminal blocks 3 corresponding to the skeletons 1. The skeletons 1 are further provided with terminal block mounting structures 4 for mounting the terminal blocks 3. The terminal block mounting structure 4 includes a plurality of supports 4.1 distributed in sequence along the circumference of the stator and a plurality of hooks 4.2. The supports 4.1 and the hooks 4.2 are arranged at the end of the annular skeleton 1.1 away from the axial insert 1.2. The hooks 4.2 extend along the stator axis. The supports 4.1 extend along the stator axis. The end of the support 4.1 is provided with a positioning pin 4.3, and a stepped surface 4.4 is arranged between the support 4.1 and the positioning pin 4.3. The stepped surface 4.4 is perpendicular to the stator axis. The terminal block 3 is provided with a plurality of positioning holes corresponding to the positioning pins 4.3. The terminal block 3 is mounted on the terminal block mounting structure 4 corresponding to the skeleton 1. The terminal block 3 is supported on the stepped surface 4.4 of each support 4.1, the positioning pin 4.3 is inserted into the positioning hole, and the hook 4.2 buckles the terminal block 3 on the stepped surface 4.4. The skeleton 1 of the present scheme can also directly mount the terminal block 3 on the skeleton 1 through the terminal block mounting structure 4. Specifically, the terminal block 3 is supported on the stepped surface 4.4 of each support 4.1, the positioning pin 4.3 is inserted into the positioning hole of the terminal block 3, and the hook 4.2 buckles the terminal block 3 on the stepped surface 4.4, thereby facilitating the direct mounting of the terminal block 3 on the skeleton 1; in this way, the compactness of the motor structure can be effectively improved, and the length of the wiring can be shortened.

[0039] In the present embodiment, as shown in the drawings, Figure 1 、 Figure 2As shown, the four struts 4.1 are evenly distributed around the stator in sequence. The four hooks 4.2 correspond to the four struts 4.1 respectively. The hooks 4.2 are close to the corresponding struts 4.1. It should be noted that the number of struts 4.1 can be set as needed, for example, 3-6 struts 4.1; the number of hooks 4.2 can also be set as needed, for example, 2-4 hooks 4.2. The number of hooks 4.2 can be the same as or different from the number of struts 4.1.

[0040] Further, as shown in Figure 2 、 Figure 4 The hook 4.2 includes an elastic arm 4.21 extending along the stator axis and a clamping block 4.22 provided at the end of the elastic arm 4.21. The clamping block 4.22 extends towards the center of the stator. The side of the clamping block 4.22 facing the annular framework 1.1 is an abutting inclined surface 4.23 cooperating with the terminal plate 3. The distance between the abutting inclined surface 4.23 and the stepped surface 4.4 gradually decreases from the center of the stator. The distance between the abutting inclined surface 4.23 and the stepped surface 4.4 refers to the distance along the stator axis. When the hook 4.2 is clamped on the stepped surface 4.4, the abutting inclined surface 4.23 is abutted on the edge of the terminal plate 3 under the action of the elastic arm 4.21. After the hook 4.2 is clamped on the stepped surface 4.4, there may be a gap between the terminal plate 3 and the clamping block 4.22 of the hook 4.2, which may cause the terminal plate 3 to move along the stator axis, affecting the stability of the connection between the wire and the terminal plate 3, and even causing the connection structure between the wire and the terminal plate 3 to break. In order to avoid the terminal plate 3 moving along the stator axis, the side of the clamping block 4.22 facing the annular framework 1.1 is provided as an abutting inclined surface 4.23 cooperating with the terminal plate 3, and the distance between the abutting inclined surface 4.23 and the stepped surface 4.4 gradually decreases from the center of the stator. In this way, after the hook 4.2 is clamped on the stepped surface 4.4, the abutting inclined surface 4.23 will be abutted on the edge of the terminal plate 3 under the action of the elastic arm 4.21, and the terminal plate 3 will be pressed on the stepped surface 4.4, thereby eliminating the gap between the terminal plate 3 and the clamping block 4.22 of the hook 4.2, to avoid the terminal plate 3 moving along the stator axis, affecting the stability of the connection between the wire and the terminal plate 3, and even causing the connection structure between the wire and the terminal plate 3 to break.

[0041] The above is only a preferred embodiment of the present application, not any limitation on the present application, any simple modification, change and equivalent transformation of the above embodiment according to the technical essence of the present application still belong to the protection scope of the technical scheme of the present application.

Claims

1. A stator with universal upper and lower frames, characterized in that: The stator frame assembly includes two frames with the same structure. The frames include an annular frame and several axial plug-ins arranged on the annular frame and distributed in sequence around the circumference of the stator. The axial plug-ins extend along the axial direction of the stator. Each axial plug-in is provided with a frame winding groove. The frame winding groove extends along the axial direction of the stator and passes through the axial plug-ins and the annular frame. Half of the axial plug-ins in the same frame have female plugs at the end, and the other half have male plugs at the end. The two frames are connected by plugging the male plugs and the female plugs of the axial plugs.

2. The stator with common upper and lower frames according to claim 1, characterized in that: The skeleton is also provided with a terminal block mounting structure for mounting a terminal block. The terminal block mounting structure includes a plurality of pillars and a plurality of hooks distributed in sequence around the circumference of the stator. The pillars and the hooks are both arranged on the end of the annular skeleton that is away from the axial plug-in. The hooks extend along the axial direction of the stator. The pillars extend along the axial direction of the stator. A positioning pin is provided at the end of the pillar, and a step surface is provided between the pillar and the positioning pin.

3. The stator with common upper and lower frames according to claim 2, characterized in that: It also includes two terminal blocks corresponding to the skeleton one by one, and a number of positioning holes corresponding to the positioning pins are provided on the terminal block mounting structure of the corresponding skeleton. The terminal block is supported on the step surface of each pillar, and the positioning pins are inserted into the positioning holes. The hooks buckle the terminal block on the step surface.

4. A stator with common upper and lower frames according to claim 2 or 3, characterized in that: The hook includes an elastic arm extending axially along the stator and a clamping block arranged at the end of the elastic arm. The side of the clamping block facing the annular frame is an abutting inclined surface that cooperates with the terminal block. The distance between the abutting inclined surface and the step surface gradually decreases from the center of the stator to the outside.

5. A stator with common upper and lower frames according to claim 1, 2 or 3, characterized in that: It also includes a stator core, which is provided with a plurality of core winding slots distributed in a circumferential direction. The core winding slots extend along the stator axis and penetrate the stator core. The core winding slots correspond one-to-one to the axial plug-ins on the same frame. The axial plug-ins are inserted into the corresponding core winding slots. The stator core is located between the annular frames of the two frames.

6. The stator with common upper and lower frames according to claim 5, characterized in that: At least one of the axial plug-ins on the skeleton is provided with a positioning protrusion, which is close to the annular skeleton. The inner side end of the iron core is provided with a positioning groove that cooperates with the positioning protrusion, and one end of the positioning groove is connected to the end face of the iron core.

7. A stator with common upper and lower frames according to claim 1, 2 or 3, characterized in that: The female plug is formed by extending the end of the axial plug-in outward, and the skeleton winding groove passes through the female plug. The male plug is formed by extending the end of the axial plug-in outward, and the skeleton winding groove passes through the male plug.

8. A stator with common upper and lower frames according to claim 1, 2 or 3, characterized in that: Winding blocking protrusions are provided on both sides of the inner wall of the skeleton winding groove in the axial plug-in unit close to the groove opening, and the winding blocking protrusions extend along the axial direction of the stator.

9. A stator with common upper and lower frames according to claim 1, 2 or 3, characterized in that: An annular winding groove is provided on one end of the annular skeleton facing away from the axial plug-in, and the winding grooves of each skeleton are evenly connected to each other.

10. A stator with common upper and lower frames according to claim 1, 2 or 3, characterized in that: The annular frame of the skeleton and each axial plug-in unit are integrally formed.

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