Straight chain type framework

Abstract

The utility model relates to the technical field of motors, in particular to a straight chain type framework. The stator framework comprises a framework body arranged on a stator core, the framework body comprises a mounting plate, a winding part and a wire blocking part, and the mounting plate is fixedly connected with the winding part; the part, located at one axial end of the radial outer side of the winding part, of the mounting plate comprises a vertical part and an inclined part, and the vertical part is fixedly connected with the inclined part; and one side wall surface, close to the winding part, of the inclined part is inclined towards the outer side direction of the stator iron core. According to the technical scheme, the problem that the coil extrudes the framework body to cause deformation and even exceed the inner circle of the iron core is solved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, specifically a linear frame. Background Technology

[0002] Electric motors play a crucial role in industrial and agricultural production. They are devices that convert electrical energy into mechanical energy and are widely used to drive various production machinery and equipment. Electric motors are also widely used in household appliances, industrial and agricultural equipment, transportation, national defense, and living facilities.

[0003] In the automated winding process of motor manufacturing, the enameled wire bundles accumulate higher and higher with the coils, increasing the force on the bobbin. Since there is no pre-designed compression space within the bobbin, this causes deformation. For example... Figure 1 As shown, in the existing frame body, the mounting plate near the wall of the winding part and the outer peripheral surface of the winding part are arranged vertically. During the automatic winding process, the enameled wire will be squeezed to both sides of the frame when it accumulates at the end, causing the coil to squeeze and deform the frame body or even exceed the inner circle of the iron core. This causes jamming when the motor rotates, resulting in abnormal motor noise. Utility Model Content

[0004] In order to solve the problems in related technologies, this utility model provides a straight-chain skeleton, which solves the problem that the coil squeezes the skeleton body, causing deformation or even exceeding the inner circle of the iron core.

[0005] To solve the above problems, the following technical solutions are provided:

[0006] This utility model discloses a trapezoidal straight-chain type including a skeleton body disposed on a stator core. The skeleton body includes a mounting plate, a winding part, and a wire-blocking part. The mounting plate and the winding part are fixedly connected. The portion of the mounting plate located at one axial end of the radially outer side of the winding part includes a vertical part and an inclined part. The vertical part and the inclined part are fixedly connected. The side wall of the inclined part near the winding part is inclined towards the outer side of the stator core.

[0007] In the above solution, the inclined section, which is arranged outwards, reserves space for the winding extrusion frame body, avoiding deformation of the frame body caused by winding extrusion. This solves the problem of deformation caused by coil extrusion of the frame body, which may even exceed the inner circle of the iron core. The trapezoidal frame body structure reserves space for coil extrusion, avoiding abnormal motor noise caused by frame body deformation, improving the motor's pass rate and stability, and solving problems such as abnormal motor noise caused by frame body deformation. It also reduces the lateral force of the coil and reduces the coil height, thus improving insulation.

[0008] The angle between the inclined portion near the wall of the winding portion and the outer peripheral surface of the winding portion is 94-95°, and the height of the vertical portion is 5.5mm-6mm.

[0009] In the above scheme, the wall of the inclined part is arranged to be inclined outward, so that the winding part and the inclined part are reserved with coil wiring space. This avoids the wiring space being too full, the coil squeezing the inner frame, causing frame deformation and rotor interference, increasing the wiring space area, ensuring the strength of the frame body, and making the reserved space more reasonable. This allows the enameled wire to be laid down reasonably while ensuring that the frame body does not deform.

[0010] The skeleton body and the stator core are injection molded as one piece. The vertical part and the inclined part are one piece of structure. The winding part and the mounting plate are one piece of structure. The skeleton body is a plastic skeleton body.

[0011] With the above solution, the winding part and the mounting plate are integrated into one structure, making the entire straight chain skeleton arranged as one piece, which helps to enhance the strength of the straight chain skeleton.

[0012] The wire-blocking portion includes a first wire-blocking portion and a second wire-blocking portion. The first wire-blocking portion is located on the side of the winding portion away from the mounting plate and is connected to the side end face of the winding portion. The first wire-blocking portion extends outwards along the end face of the winding portion to form a first skirt. The second wire-blocking portion is located on the side of the winding portion close to the mounting plate and is connected to the side end face of the winding portion. The second wire-blocking portion extends outwards along the end face of the winding portion to form a second skirt.

[0013] The first and second skirts are at least partially inclined toward the direction away from the winding portion, such that the angle between the first and second skirts and the outer peripheral surface of the adjacent winding portion is greater than 90°.

[0014] The above solution provides space for coil wiring between the winding section and the wire blocking section by setting the wire blocking part, and also helps to prevent the wound coil from slipping off the winding section.

[0015] The inclined portion has multiple wire routing grooves arranged in parallel and parallel circumferential directions on the wall surface away from the winding portion.

[0016] The above solution facilitates the winding of the bridging cable on the outside of the frame body by setting up the cable routing groove.

[0017] The above solution has the following advantages:

[0018] 1. The present invention provides a linear skeleton comprising a skeleton body mounted on a stator core. The skeleton body includes a mounting plate, a winding portion, and a wire-blocking portion. The mounting plate and the winding portion are fixedly connected. The portion of the mounting plate located at one axial end of the radially outer side of the winding portion includes a vertical portion and an inclined portion. The vertical portion is fixedly connected to the inclined portion. The side wall of the inclined portion near the winding portion is inclined towards the outer side of the stator core. By setting the inclined portion, the position for the winding to compress the skeleton body is reserved, avoiding deformation of the skeleton body caused by winding compression. This solves the problem of deformation caused by coil compression of the skeleton body, which may even exceed the inner circle of the core. The trapezoidal skeleton body structure reserves space for coil compression, avoiding abnormal motor sound caused by skeleton body deformation, improving the motor's pass rate and stability, and solving the problem of abnormal motor sound caused by skeleton body deformation. It also reduces the lateral force of the coil and reduces the coil height, thus improving insulation.

[0019] 2. The angle between the wall surface of the inclined section near the winding section and the outer circumference of the winding section is 94-95°. The outward tilt of the inner wall surface of the inclined section provides space for coil wiring between the winding section and the inclined section, avoiding excessive filling of the wiring space, coil compression of the inner frame, frame deformation, and rotor interference. This increases the wiring space area and ensures the strength of the frame body. It also makes the reserved space more reasonable, allowing the enameled wire to be laid out properly while ensuring that the frame body does not deform. The winding section and the mounting plate are an integrated structure, making the entire linear frame integrated, which helps to enhance the strength of the linear frame. The wire blocking part helps to prevent the wound coil from slipping off the winding section. Multiple wire routing grooves are arranged in parallel on the circumference of the inclined section away from the winding section, which facilitates the winding of the bridge wire on the outside of the frame body. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the skeleton body in the prior art;

[0022] Figure 2 This is a schematic diagram of a linear skeleton structure;

[0023] Figure 3 This is a schematic diagram of the skeleton body in a linear skeleton.

[0024] Figure 4 This is a schematic diagram of the skeleton body from another perspective in a linear skeleton.

[0025] Figure 5 This is a schematic diagram showing the angle and height markings in a linear skeleton.

[0026] Figure 6 This is a schematic diagram of the structure of a stator assembly after the straight-chain skeleton is fully rounded;

[0027] Figure 7 for Figure 5 A cross-sectional view along the AA direction;

[0028] Figure 8 This is a schematic diagram of the first and second trapezoidal cavities in a trapezoidal straight-chain skeleton.

[0029] Explanation of reference numerals in the attached drawings: 1. Mounting plate; 101. Vertical part; 102. Inclined part; 2. Winding part; 3. Wire blocking part; 301. First wire blocking part; 3011. First skirt; 302. Second wire blocking part; 3021. Second skirt; 4. Cable routing groove; 5. Stator core; 6. Stator assembly. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] In specific embodiment 1, such as Figures 2-6 As shown, the stator assembly 6 of this utility model includes a stator core 5 and a frame body disposed on the stator core 5. The stator core 5 can be a linear core. The frame body includes a mounting plate 1, a winding portion 2, and a wire-blocking portion 3. The wire-blocking portion 3 is located at both ends of the winding portion 2, and the mounting plate 1 is located at one end of the winding portion 2, specifically on the side away from the center line of the stator assembly 6. The mounting plate 1 and the winding portion 2 are fixedly connected. The mounting plate 1 is divided into upper and lower parts, which abut against the axial end faces of the stator core 5. The upper mounting plate 1 includes a vertical portion 101 and an inclined portion 102, and the vertical portion 101 and the inclined portion 102 are fixedly connected.

[0032] like Figure 4 , 5 As shown, the wire-blocking part 3 includes a first wire-blocking part 301 and a second wire-blocking part 302. The first wire-blocking part 301 is located on the side of the winding part 2 away from the mounting plate 1, is connected to the end face of the winding part 2 on that side, and extends a first skirt 3011 around the end face. The second wire-blocking part 302 is located on the side of the winding part 2 close to the mounting plate 1, is connected to the end face of the winding part 2 on that side, and extends a second skirt 3021 around the end face.

[0033] like Figure 3 As shown in the figure, the outer peripheral surface of the winding part 2 is divided into upper and lower outer peripheral surfaces and a side peripheral surface extending between the upper and lower outer peripheral surfaces. The first skirt 3011 and the second skirt 3021 include upper and lower skirts connected to the upper and lower outer peripheral surfaces and a side skirt connected to the side peripheral surface. The mounting plate 1 is a structure that is integrally formed with the upper and lower skirts in the second skirt 3021 and is thickened and lengthened in the axial and radial directions.

[0034] like Figure 5 , 8 As shown, the mounting plate 1 at the bottom, near the side wall of the winding section 2, is inclined towards the outside of the stator core 5, forming a trapezoidal groove b. Specifically, the inclined section 102 is configured such that the side wall of the inclined section 102 near the winding section 2, i.e., the side wall facing the center line, is inclined towards the outside of the stator core 5, i.e., inclined away from the center line, forming a trapezoidal groove a. The angle between the wall of the inclined section 102 near the winding section 2 and the upper outer circumferential surface of the outer circumferential surface of the winding section 2 is 94–95°. The height of the vertical section 101 is 5.5 mm–6 mm. By setting the inclined part 102, the inclined part 102 is arranged outward, so that the winding part 2 and the inclined part 102 reserve space for coil wiring, avoiding excessive fullness of the wiring space, reserving the position for the winding to squeeze the frame body, greatly avoiding the situation where the frame body is deformed due to the extrusion of the enameled wire winding, and even exceeding the inner circle of the iron core. This avoids abnormal motor sound caused by frame body deformation, improves the motor's pass rate and stability, solves the problem of abnormal motor sound caused by frame body deformation, reduces the lateral component force of the coil, and also reduces the coil height, thus improving insulation.

[0035] In addition to the inclined portion 102, the skirt edge can also be inclined. All or part of the first skirt edge 3011 and the second skirt edge 3021 are inclined away from the winding portion 2, that is, the angle between the skirt edge and the outer peripheral surface of the adjacent winding portion 2 is greater than 90°. In this embodiment, the portions of the first skirt edge 3011 and the second skirt edge 3021 connected to the side peripheral surface of the winding portion 2 are inclined as described above. For ease of processing, the axially extending vertical portions of the first skirt edge 3011 connected to the side peripheral surface of the winding portion 2 are all inclined. For example... Figure 7 As shown, the first skirt 3011, the second skirt 3021, and the winding groove formed on the outer peripheral surface of the winding portion 2 between them constitute a trapezoidal groove c due to the inclined arrangement of the first skirt 3011 and the second skirt 3021. The inclined arrangement of the first skirt 3011 and the second skirt 3021 in this application facilitates the entry of the enameled wire into the winding portion 2 during winding and provides space for the enameled wire, preventing deformation of the frame due to compression.

[0036] The skeleton body and the stator core 5 are injection molded as one piece. After the linear stator core 5 is processed, the skeleton body and the stator core 5 are arranged as one piece by injection molding. The vertical part 101 and the inclined part 102 are one piece structure, the winding part 2 and the mounting plate 1 are one piece structure, and the skeleton body is a plastic skeleton body, so that the entire linear skeleton is arranged as one piece, which is beneficial to enhance the strength of the linear skeleton.

[0037] In a specific embodiment 2, such as Figure 3 As shown, the difference between this embodiment and embodiment 1 is that this embodiment also discloses a wiring groove 4. The wiring groove 4 is located on the wall surface of the inclined part 102 away from the winding part 2, and multiple wiring grooves 4 are arranged in parallel side by side, which facilitates the winding of the bridge wire on the outside of the skeleton body.

[0038] In a specific embodiment 3, such as Figure 5 As shown, the difference between this embodiment and embodiments 1 and 2 is that the angle α formed by the inclined part 102 near the wall of the winding part 2 and the outer peripheral surface of the winding part 2 in this embodiment is 94.62°, and the height h of the vertical part 101 is 5.84mm.

[0039] During the automated winding process of the motor, the coils accumulate higher and higher, increasing the force on the frame body. The frame body is arranged at an outward tilt, reserving space for coil wiring between the winding section 22 and the tilted section 102102. The first wire-blocking section 301301 and the second wire-blocking section 302302 are also tilted, reserving space for coil wiring between the winding section 22 and the wire-blocking section 33. This design preserves the space where the winding might compress the frame body, preventing excessive filling of the wiring space and coil compression of the inner frame body, which could lead to frame body deformation and rotor interference. It also ensures the strength of the frame body and optimizes the reserved space. This structure ensures the stability and durability of the frame body, optimizes space utilization during winding, avoids unnecessary pressure or damage to the frame body, and significantly improves the overall performance and service life of the product, ensuring the reliable operation of the motor and other related equipment.

[0040] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. For those skilled in the art, other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A linear skeleton, comprising a skeleton body disposed on a stator core, characterized in that, The frame body includes a mounting plate, a winding section, and a wire blocking section. The mounting plate and the winding section are fixedly connected. The portion of the mounting plate located at one axial end of the radially outer side of the winding section includes a vertical section and an inclined section. The vertical section and the inclined section are fixedly connected. The side wall of the inclined section near the winding section is inclined towards the outside of the stator core.

2. A linear skeleton as described in claim 1, characterized in that, The angle between the inclined portion near the wall of the winding portion and the outer peripheral surface of the winding portion is 94-95°, and the height of the vertical portion is 5.5mm-6mm.

3. A linear skeleton as described in claim 1, characterized in that, The skeleton body and the stator core are injection molded as one piece. The vertical part and the inclined part are one piece of structure. The winding part and the mounting plate are one piece of structure. The skeleton body is a plastic skeleton body.

4. A linear skeleton as described in claim 1, characterized in that, The wire-blocking portion includes a first wire-blocking portion and a second wire-blocking portion. The first wire-blocking portion is located on the side of the winding portion away from the mounting plate and is connected to the side end face of the winding portion. The first wire-blocking portion extends outwards along the end face of the winding portion to form a first skirt. The second wire-blocking portion is located on the side of the winding portion close to the mounting plate and is connected to the side end face of the winding portion. The second wire-blocking portion extends outwards along the end face of the winding portion to form a second skirt.

5. A linear skeleton as described in claim 4, characterized in that, The first and second skirts are at least partially inclined toward the direction away from the winding portion, such that the angle between the first and second skirts and the outer peripheral surface of the adjacent winding portion is greater than 90°.

6. A linear skeleton as described in claim 1, characterized in that, The inclined portion has multiple wire routing grooves arranged in parallel and parallel circumferential directions on the wall surface away from the winding portion.

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