Insulating plate with wire fixing structure
By designing the insulating plates of the end face, tilt ring body and inner ring body, and optimizing the wire fixation with the T-shaped fork body structure, the problem of using more traditional insulating plate materials is solved, and high efficiency solid wire, low cost and high stability are achieved.
Patent Information
- Application Number
- CN202422525214.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Traditional insulating plates require a large amount of insulating material when fixing the cross-groove enameled wire at the end of the stator, which increases the manufacturing cost and production complexity of the motor while extending the production cycle.
An insulating plate including an end face, a tilt ring body and an inner ring body is designed. The inner ring body of the inner ring body is equipped with a number of T-shaped forks distributed radially. The T-shaped fork body includes a single top and a connecting rod. The wire fixation is optimized through the unique T-shaped fork body structure, reducing the use of insulating material and the solid line worker.
It improves the wire fixation efficiency, simplifies the production process, reduces costs, enhances the stability and electrical insulation performance of the insulating plate, and adapts to different diameters and types of wires.
Smart Images
Figure CN223230958U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hub motors, and particularly discloses an insulating plate with a fixed wire structure. Background Art
[0002] Insulation of the stator ends is a crucial step in motor manufacturing, directly impacting the motor's safety and reliability. Traditional insulation plates typically utilize a simple circular pressure plate design. While this design provides basic electrical insulation, it has significant limitations in practice.
[0003] Traditional insulation plate structures require a large amount of insulating material, such as insulating sleeves, insulated wires, or cable ties, to secure and tie the enameled wires across the stator ends. This approach not only increases the stator end height, requiring more space to be reserved for the end of the motor, wasting valuable space within the motor, but also increases manufacturing costs and complexity. Furthermore, both the insulation material and the tying operations require separate manual labor, increasing labor intensity and delaying production cycles. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model discloses an insulating board with a wire-fixing structure, which has strong insulation performance, high wire-fixing efficiency and a wide range of applications.
[0005] To achieve the above objectives, the utility model discloses an insulating plate with a fixed wire structure, and its technical solution is as follows:
[0006] An insulating plate with a fixed wire structure includes an end face body, an outward-turned ring body and an inner ring body, the outward-turned ring body surrounds the outer ring of the end face body, the inner ring body is located in the inner ring of the end face body, and the inner ring of the inner ring body is provided with a plurality of T-shaped fork bodies distributed radially, the T-shaped fork body includes a straight top and a connecting rod intersecting with the straight top, the straight top and the inner circumferential surface of the inner ring body are connected by the connecting rod, a gap is left between the straight top and the inner circumferential surface of the inner ring body, the straight top faces the center side and forms an angle α with the upper end face of the end face body, and the range of the angle α is 0 to 90 degrees.
[0007] The utility model provides an insulating plate with a fixed wire structure, which also has the following auxiliary technical solutions:
[0008] Wherein, the opening width of the gap left between the top portion and the inner circular surface of the inner ring body is ≥2mm.
[0009] The outer peripheral diameter D of the inner ring body is greater than or equal to 110 mm, and the height H of the inner ring body extending downward from the lower end surface of the end surface body is greater than or equal to 3 mm.
[0010] Wherein, the wall thickness δ of the insulating plate is ≥0.5 mm.
[0011] Compared with the prior art, the advantages and positive effects of the present invention are:
[0012] The insulation board design of this utility model, with its innovative structure and multifunctionality, has brought revolutionary progress to the field of motor insulation. The main advantages of this insulation board are reflected in the following aspects:
[0013] First, the design of the outward-turned ring body is located on the outer ring of the end body, which not only provides additional protection, but also enhances the fixation of the wires, ensuring the stability and reliability of the motor under various working conditions.
[0014] Secondly, the inner ring, located within the inner circle of the end face, works in conjunction with the outer ring to enhance the stability of the entire insulation plate structure. This double-layer ring design provides a more robust support for the motor, thereby improving its durability and performance.
[0015] At the same time, the wire-fixing structure of the present invention, which is located in the inner ring of the inner ring body, adopts a unique T-shaped fork design, including a straight top facing the center of the circle and a connecting rod perpendicular to it. This structure not only optimizes the fixing effect of the wires, but also connects the straight top to the inner circumferential surface of the inner ring body through the connecting rod, further ensuring the stability of the overall structure. The appropriate gap deliberately left between the straight top and the circumferential surface of the inner ring body facilitates the fixing and smooth passage of the wires. The design of the T-shaped forks being evenly distributed along the radial direction ensures that the insulating plate can provide consistent electrical performance in all directions, which is crucial to ensuring the efficient operation of the motor.
[0016] The innovation of this utility model lies in its unique T-shaped fork-type wire-fixing structure. This design not only reduces the amount of insulating material required in traditional wire-fixing operations but also eliminates the need for tedious labor, significantly improving wire fixing efficiency. This design simplifies the production process, improves production efficiency, reduces manufacturing costs, and enhances the efficient use of space at the motor end, while also enhancing the overall stability and electrical insulation performance of the insulation board. Furthermore, by adjusting the inclination angle and gap size of the T-shaped fork, the insulation board of this utility model can accommodate wires of varying diameters and types, demonstrating wide applicability and providing new possibilities for the development of motor insulation technology. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the present utility model.
[0019] In the figure, 1, end face body; 2, inner ring body; 3, outward-turned ring body; 4, T-shaped fork body; 11, upper end face of the end face body; 12, lower end face of the end face body; 21, inner circumferential surface of the inner ring body; 22, outer circumferential surface of the inner ring body; 41, straight top; 42, connecting rod; δ, wall thickness of the insulating plate; H, height of the lower end face of the end face body extending downward. DETAILED DESCRIPTION
[0020] The following describes in detail the specific embodiments of the present invention and further illustrates the technical solution of the present invention in conjunction with the accompanying drawings. It should be noted that these descriptions are intended to help those skilled in the art better understand the present invention and do not constitute any limitation on the scope of protection of the present invention.
[0021] Example 1:
[0022] See also Figures 1 to 2 As shown, this embodiment introduces an insulating plate with a wire-fixing structure, which is specially designed for the end of the motor stator core and is intended to provide fixation and electrical insulation of the enameled wire. The insulating plate consists of three main parts: an end face body 1, an outer ring body 3 and an inner ring body 2. The outer ring body 3 is arranged around the outer ring of the end face body 1, while the inner ring body 2 is located in the inner ring of the end face body 1. This structural design enables the end face body 1 to cover the exposed conductive part of the end of the stator core, effectively achieving end insulation. The outer ring body 3 provides the necessary support space for the raised conductive part of the end of the stator core, ensuring the function of insulation support. The outer circumferential surface 22 of the inner ring body 2 is tightly fitted with the inner circumferential surface of the stator core bracket. This matching design helps to fix the insulating plate. The inner ring of the inner ring body 2 is provided with a plurality of T-shaped fork bodies 4 distributed in the radial direction, and each T-shaped fork body 4 includes a straight top 41 and a connecting rod 42 perpendicularly intersecting the straight top 41. The top portion 41 is connected to the inner circumference 21 of the inner ring body 2 via a connecting rod 42, and an appropriate gap is left between the top portion 41 and the inner circumference 21 of the inner ring body 2. The top portion 41 faces the center of the circle and forms an angle α with the upper end face 11 of the end face body 1, and the range of the angle α is 0 to 90 degrees. More specifically, the preferred range of the angle α is 15 to 90 degrees, further preferably 30 to 70 degrees, and further preferably 45 to 60 degrees. In this embodiment, the angle α is set to 60 degrees. This precise angle control helps to simplify the stator wire fixing process, making the wire fixing bending and clamping process simpler, thereby improving production efficiency, while ensuring excellent insulation effect. The design of this insulating plate not only improves the insulation performance of the motor stator, but also improves production efficiency and process simplicity by optimizing the structural design. It is an innovative technology in the field of motor manufacturing.
[0023] In the above technical solution: the opening width of the gap left between the top 41 of the straight line and the inner circumference 21 of the inner ring body 2 is ≥2mm to ensure that there is enough space for the enameled wire to pass smoothly. A more preferred design is to set the opening width of this gap to ≥3mm, and a further preferred design is ≥5mm. Such a design provides a larger operating space, ensuring that it is convenient and reliable when fixing the enameled wire, making the installation of the enameled wire more convenient.
[0024] The T-shaped prongs 4 are a key feature of the insulation board design. Their forked openings facilitate the insertion and securing of the enameled wire. The forks are located not only above the T-shaped prongs but also below them. This design allows for flexible, alternate positioning of the wires, either above or below, to secure the wires at their junctions or across the wires. Once the wires are engaged with the prongs, the straight-edge top 41 effectively prevents the wires from sliding or falling off along the connecting rod 42. This, combined with the downward extension of the inner ring 2, significantly enhances electrical insulation.
[0025] Because all components of the structure are made of insulating material, the enameled wires secured to the plate require no additional insulation or securing measures. This design simplifies the installation process, improves work efficiency, and ensures secure and reliable wire retention. This insulating plate design not only enhances the insulation performance of the motor stator but also improves production efficiency and process simplicity through optimized structural design, making it an innovative technology in motor manufacturing.
[0026] In the above technical solution, the insulation plate design takes into account compatibility with motor stators of varying diameters. The diameter D of the outer circumference 22 of the inner ring body 2 is designed to be ≥100 mm. This dimension ensures that the insulation plate can adapt to motor stators of various specifications. To provide better adaptability and stability, the diameter D of the outer circumference 22 of the inner ring body 2 is preferably at least 161.5 mm, and even more preferably at least 168 mm. In this embodiment, the diameter D is set to 170 mm. This design ensures the insulation plate has wide applicability, meeting the requirements of motor stators of varying diameters.
[0027] Furthermore, the inner ring body 2 extends downward from the lower end surface 12 of the end body 1 to a height H ≥ 3 mm to ensure adequate support and insulation. The preferred height H is at least 6 mm, more preferably at least 7 mm. In this embodiment, the height H is set between 6 mm and 7 mm. This height design not only provides adequate support but also ensures good electrical insulation between the secured enameled wire and the stator core support.
[0028] Through these meticulously designed details, the insulation plate provides stable and reliable insulation and fixation for the motor stator. The optimized design of the outer surface 22 of the inner ring 2, diameter D, and downward extension height H, allows the insulation plate to adapt to motor stators of varying specifications while ensuring reliable electrical insulation and efficient production. This design not only improves motor performance and safety, but also reduces production costs and increases efficiency.
[0029] In the above technical solution: In this technical solution, the wall thickness δ of the insulating plate is a key design parameter, which directly affects the insulation performance and mechanical strength. The wall thickness δ of the insulating plate is designed to be ≥0.5mm. This basic requirement ensures that the insulating plate has the necessary rigidity and durability. In order to provide higher insulation performance and stronger mechanical support, the wall thickness δ is preferably at least 1mm. In this embodiment, the wall thickness δ of the insulating plate is further refined to a range of 1mm to 1.2mm. Such a wall thickness design allows the insulating plate to be adapted and adjusted according to the specifications of the enameled wire used in the motor. By selecting an insulating plate with a suitable wall thickness, good electrical insulation can be ensured between the enameled wire and the stator steel sheet to prevent electrical breakdown or short circuit, thereby improving the reliability and safety of the motor.
[0030] Furthermore, an insulating plate of appropriate thickness provides ample end support for the enameled wire during winding and bending. This helps reduce damage to the enameled wire during winding, improves winding neatness and consistency, and thus increases the stator winding pass rate. This is crucial for improving motor production efficiency and reducing defective product rates.
[0031] In summary, the insulation plate's wall thickness δ has been carefully designed and optimized in this technical solution, meeting electrical insulation requirements while providing necessary mechanical support and taking into account practical production needs. This design allows the insulation plate to accommodate motor stators and enameled wires of varying specifications, improving both insulation performance and production efficiency.
[0032] Example 2:
[0033] This embodiment is generally similar to Embodiment 1 in terms of technical solutions, and only the differences are described in detail. The same contents between the two embodiments are not repeated here.
[0034] In this embodiment, the opening width of the gap between the top 41 and the inner circumference 21 of the inner ring body 2 is ≥2mm to ensure that there is enough space for the enameled wire to pass smoothly. A more preferred design is to set the opening width of this gap to ≥4mm. The opening width of this embodiment is set to 4.5mm.
[0035] In the above technical solution: the diameter D of the outer circumferential surface 22 of the inner ring body 2 is designed to be at least 100 mm, and the diameter D of the outer circumferential surface 22 of the inner ring body 2 is further preferably at least 170 mm, and further preferably at least 173 mm. In this embodiment, the diameter D is set to 173 mm.
[0036] Example 3:
[0037] This embodiment is generally similar to Embodiment 1 in terms of technical solutions, and only the differences are described in detail. The same contents between the two embodiments are not repeated here.
[0038] In this embodiment, the opening width of the gap between the top 41 and the inner circumference 21 of the inner ring body 2 is ≥2mm to ensure that there is enough space for the enameled wire to pass smoothly. A more preferred design is to set the opening width of this gap to ≥5mm. The opening width of this embodiment is set to 7mm.
[0039] In the above technical solution: the diameter D of the outer circumferential surface 22 of the inner ring body 2 is designed to be at least 100 mm, and the diameter D of the outer circumferential surface 22 of the inner ring body 2 is further preferably at least 210 mm, and further preferably at least 215 mm. In this embodiment, the diameter D is set to 215 mm.
[0040] In the above technical solution, the wall thickness δ of the insulating plate is designed to be at least 0.5 mm, preferably at least 1 mm. In this embodiment, the wall thickness δ of the insulating plate is further refined to be in the range of 1.5 mm to 2 mm.
[0041] In the present invention, the outer folded ring body is designed to be located on the outer ring of the end face body, which not only provides additional protection, but also enhances the fixing effect on the wires, ensuring the stability and reliability of the motor under various working conditions; secondly, the inner ring body is located on the inner ring of the end face body, and cooperates with the outer folded ring body to jointly enhance the stability of the entire insulation board structure. This double-layer ring body design provides a more solid support for the motor, thereby improving the durability and performance of the motor.
[0042] At the same time, the wire-fixing structure of the present invention, which is located in the inner ring of the inner ring body, adopts a unique T-shaped fork design, including a straight top facing the center of the circle and a connecting rod perpendicular to it. This structure not only optimizes the fixing effect of the wires, but also connects the straight top to the inner circumferential surface of the inner ring body through the connecting rod, further ensuring the stability of the overall structure. The appropriate gap deliberately left between the straight top and the circumferential surface of the inner ring body facilitates the fixing and smooth passage of the wires. The design of the T-shaped forks being evenly distributed along the radial direction ensures that the insulating plate can provide consistent electrical performance in all directions, which is crucial to ensuring the efficient operation of the motor.
[0043] The innovation of this utility model lies in its unique T-shaped fork-type wire-fixing structure. This design not only reduces the amount of insulating material required in traditional wire-fixing operations but also eliminates the need for tedious labor, significantly improving wire fixing efficiency. This design simplifies the production process, improves production efficiency, reduces manufacturing costs, and enhances the efficient use of space at the motor end, while also enhancing the overall stability and electrical insulation performance of the insulation board. Furthermore, by adjusting the inclination angle and gap size of the T-shaped fork, the insulation board of this utility model can accommodate wires of varying diameters and types, demonstrating wide applicability and providing new possibilities for the development of motor insulation technology.
[0044] The embodiments described in this document are only examples of the present invention and are intended to illustrate the technical solutions of the present invention, rather than to limit the scope of patent protection. Although we have elaborated on the specific implementation methods of the present invention in detail, it is entirely possible for those skilled in the art to make appropriate adjustments or improvements to the present invention without departing from the core spirit and basic principles of the present invention. The scope of protection of the present invention is strictly defined in accordance with the claims and their equivalents. Any improvements, equivalent replacements based on the contents of the specification and drawings of the present invention, or attempts to apply the technical solutions of the present invention to other technical fields, are deemed to be within the scope of patent protection of the present invention.
[0045] Although this article frequently mentions professional terms such as the end face body 1, the inner ring body 2, the outward-turned ring body 3, the T-shaped fork body 4, the upper end face 11 of the end face body, the lower end face 12 of the end face body, the inner peripheral surface 21 of the inner ring body, the outer peripheral surface 22 of the inner ring body, the straight top 41, the connecting rod 42, the wall thickness δ of the insulating plate, and the height H of the lower end face of the end face body extending downward, this does not mean that the possibility of using other terms is excluded. The purpose of selecting these terms is to more clearly and accurately describe and explain the core content of the present invention. Any attempt to interpret these terms as adding restrictions to the present invention is inconsistent with the main purpose of the present invention.
Claims
1. An insulating plate with a fixed wire structure, comprising an end face body (1), an outward-turned ring body (3) and an inner ring body (2), wherein the outward-turned ring body (3) is arranged around the outer ring of the end face body (1), and the inner ring body (2) is located in the inner ring of the end face body (1), characterized in that: The inner ring of the inner ring body (2) is provided with a plurality of T-shaped fork bodies (4) distributed in the radial direction, and the T-shaped fork body (4) includes a straight top (41) and a connecting rod (42) intersecting with the straight top (41), and the straight top (41) is connected to the inner peripheral surface (21) of the inner ring body (2) through the connecting rod (42), and a gap is left between the straight top (41) and the inner peripheral surface (21) of the inner ring body (2), and the straight top (41) faces the center side and forms an angle α with the upper end surface (11) of the end face body (1), and the range of the angle α is 0 to 90 degrees.
2. The insulating board with a fixed wire structure according to claim 1, characterized in that: The opening width of the gap between the top portion (41) and the inner circumferential surface (21) of the inner ring body (2) is ≥2 mm.
3. The insulating board with a fixed wire structure according to claim 1, characterized in that: The diameter D of the outer peripheral surface (22) of the inner ring body (2) is ≥100 mm, and the height H of the inner ring body (2) extending downward from the lower end surface (12) of the end surface body (1) is ≥3 mm.
4. The insulating board with a fixed wire structure according to claim 1, characterized in that: The wall thickness of the insulation board is δ≥0.5mm.