A stator insulation frame structure for an electric machine

CN121192985BActive Publication Date: 2026-10-30GREEN SMART MOTOR (SUINING) CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202511514350.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-10-22
Publication Date
2026-10-30
Estimated Expiration
2045-10-22

AI Technical Summary

Technical Problem

[0005]本发明的目的在于:为了解决现有的电机用定子绝缘框架结构仍存在一些不足之处,在绕线工序中,线圈在绕线部上易发生滑动,这不仅导致绕线效率低下、操作困难,更会造成绕线不均匀、线圈松散及排布不规整,直接影响绕线质量,此外,由于绝缘框架与线圈材质的热膨胀系数存在差异,电机运行时内部温升将引发绝缘框架的不均匀形变,进而对线圈产生额外的热应力,此应力会加剧线圈的微动与磨损,威胁其长期绝缘可靠性的问题,而提出的一种用于电机的定子绝缘框架结构

Benefits of technology

1、本发明中,绕线时,填充有非牛顿流体的橡胶囊能对漆包线产生自适应形变,形成紧密贴合的软接触,提供均匀支撑力,并结合防滑纹设计,有效防止线缆滑动,获得了更高的绕线密度与一致性,上述动态稳定的支撑与定位作用,使得漆包线能够更紧密、更规整地排列,直接提升了槽满率与产品一致性。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN121192985B_ABST
    Figure CN121192985B_ABST
Patent Text Reader

Abstract

The application discloses a kind of stator insulation frame structures for motor, belong to motor technology and electrical engineering technical field, including multiple stator components, multiple stator components are arranged at intervals along circumference, and jointly define a ring structure, stator component includes the stator core by multiple silicon steel sheets stamping and laminating, and upper layer insulation frame and lower layer insulation frame symmetrically sleeved on it, upper layer insulation frame and lower layer insulation frame are all provided with sink groove to back surface, and each sink groove is embedded with a support component, in the application, when winding, rubber capsule filled with non-newtonian fluid can be self-adapting deformation to enameled wire, form close fitting soft contact, provide uniform support force, and combined with anti-skid line design, effectively prevent cable sliding, obtain higher winding density and consistency, the above dynamic stable support and positioning effect make enameled wire more closely, more regular arrangement, directly improve slot fill factor and product consistency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of motor technology and electrical engineering technology, and particularly relates to a stator insulation frame structure for motors. Background Technology

[0002] The stator insulation frame structure is a core component of the motor stator, and its design is directly related to the motor's electrical performance, mechanical stability, and operational reliability. This structure achieves electrical isolation between the stator core and windings through the synergistic effect of the insulation material and the frame, while also providing mechanical support and heat dissipation.

[0003] Existing technologies disclose several invention patents in the fields of motor technology and electrical engineering. Among them, patent publication number CN107947420B discloses an insulating frame, an insulating structure, and a motor stator, as well as a method for manufacturing the same. The insulating frame is composed of multiple winding portions connected in a ring. Each winding portion has a first end and a second end opposite to each other along the axial direction of the insulating frame. Each winding portion has a first groove and a second groove formed thereon. The first groove is open at the first end of the winding portion and extends along the inner and outer directions of the insulating frame. The second groove is arranged in a direction surrounding the first groove, and the first groove and the second groove are spaced apart. This design is used for the insulation of the motor. The insulating frame can be assembled into an insulating frame for winding, which facilitates motor winding, thereby reducing motor assembly costs and improving assembly efficiency. However, the existing stator insulating frame structure for motors still has some shortcomings. During the winding process, the coil is prone to slippage on the winding section, which not only leads to low winding efficiency and difficult operation, but also causes uneven winding, loose coils, and irregular arrangement, directly affecting the winding quality. In addition, due to the difference in thermal expansion coefficients between the insulating frame and the coil material, the internal temperature rise during motor operation will cause uneven deformation of the insulating frame, which in turn generates additional thermal stress on the coil. This stress will exacerbate the coil's fretting and wear, threatening its long-term insulation reliability.

[0004] Based on this, the present invention designs a stator insulation frame structure for motors to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing stator insulation frame structures for motors. During the winding process, the coil is prone to slippage on the winding section, leading not only to low winding efficiency and operational difficulties, but also to uneven winding, loose coils, and irregular arrangement, directly affecting winding quality. Furthermore, due to the difference in thermal expansion coefficients between the insulation frame and coil materials, the internal temperature rise during motor operation will cause uneven deformation of the insulation frame, resulting in additional thermal stress on the coil. This stress exacerbates coil fretting and wear, threatening its long-term insulation reliability. Therefore, this invention proposes a stator insulation frame structure for motors.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A stator insulation frame structure for an electric motor includes multiple stator assemblies, which are spaced apart circumferentially and together define an annular structure. Each stator assembly includes a stator core formed by stamping and stacking multiple silicon steel sheets, and an upper insulation frame and a lower insulation frame symmetrically mounted thereon. Both the upper and lower insulating frames have recessed grooves on their opposite surfaces, and each recessed groove contains a support component.

[0007] As a further description of the above technical solution: The support assembly includes a rubber bladder embedded in the sinkhole and two clamping plates located on its side and also embedded in the sinkhole. Two flanges extending outward are formed at the bottom edge of the rubber bladder. Each clamping plate has a clamping groove at its bottom, and the two flanges are respectively clamped and connected to the clamping grooves of the two clamping plates.

[0008] As a further description of the above technical solution: The top of the clamping plate is provided with a plurality of first countersunk grooves, and a first bolt is disposed in each first countersunk groove. The inner bottom surface of the countersunk groove is provided with a plurality of first threaded grooves. The threaded end of the first bolt is screwed into the first threaded groove to fix the clamping plate in the countersunk groove.

[0009] As a further description of the above technical solution: The two opposite end faces inside the settling trough are provided with compensation grooves, and compensation components are embedded in the two compensation grooves. The two compensation components are respectively located at both ends of the rubber bladder.

[0010] As a further description of the above technical solution: The compensation component includes a compensation bladder disposed at the end of the rubber bladder and communicating with the interior of the rubber bladder. The compensation bladder and the interior of the rubber bladder are filled with a non-Newtonian fluid. The compensation component also includes a compensation plate, which is fixedly connected to the side of the compensation bladder opposite to the rubber bladder. The compensation plate is slidably connected in a compensation groove. Multiple compensation springs are fixedly connected to the side of the compensation plate opposite to the compensation bladder. The compensation plate forms an elastic support with the inner wall of the compensation groove through the multiple compensation springs.

[0011] As a further description of the above technical solution: The upper and lower insulating frames are provided with combination grooves on their opposite sides. Each combination groove is embedded with a combination plate. The combination plate is fixed in the combination groove by a plurality of second bolts. The bottom of the combination plate is provided with a plurality of second countersunk grooves. The top surface of the combination groove is provided with a plurality of second threaded grooves. The second bolts pass through the second countersunk grooves and are screwed into the second threaded grooves.

[0012] As a further description of the above technical solution: Multiple settling grooves are provided on the top of the inner side of the combined groove. Each settling groove is slidably connected with a clamping component. One end of the clamping component abuts against the inner top surface of the settling groove, and the other end abuts against the top surface of the combined plate.

[0013] As a further description of the above technical solution: The clamping assembly includes a first elastic element and a second elastic element slidably connected within the same settling tank, and the opposing surfaces of the first elastic element and the second elastic element are connected to an elastic clamping plate.

[0014] As a further description of the above technical solution: The first elastic element includes: The rear support plate is slidably connected to the settling trough, and its top abuts against the inner top surface of the settling trough. Multiple directional shafts are fixedly connected to the bottom of the rear support plate. The sliding block is slidably connected to the settling trough, and its top is provided with multiple directional grooves corresponding to the multiple directional shafts.

[0015] As a further description of the above technical solution: The other ends of the plurality of directional shafts are slidably connected to the plurality of directional grooves, and the plurality of directional springs are respectively sleeved on the plurality of directional shafts, so that the sliding block is elastically supported and connected to the rear support plate, and the bottom of the sliding block is connected to the top of the elastic clamping plate.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, during winding, the rubber bladder filled with non-Newtonian fluid can adaptively deform the enameled wire, forming a tight and soft contact, providing uniform support force. Combined with the anti-slip texture design, it effectively prevents the cable from slipping, resulting in higher winding density and consistency. The aforementioned dynamic and stable support and positioning function enables the enameled wire to be arranged more tightly and regularly, directly improving the slot fill factor and product consistency.

[0017] 2. In this invention, a fluid circuit consisting of a rubber bladder, a compensation bladder, and a compensation spring is used to actively absorb the internal stress caused by the different thermal expansion coefficients of the materials when the motor temperature rises, and it can automatically reset when cooling, forming an intelligent thermal compensation cycle that effectively protects the winding from damage caused by alternating thermal stress.

[0018] 3. In this invention, a split design and process of winding first and then forming is adopted, which winds the stator in a linear state, providing an open and ample operating space, improving production efficiency and quality. The open operating space makes the winding equipment operate more smoothly and facilitates the integration of various auxiliary functions, thereby significantly improving the stability of the winding process, winding quality and production efficiency.

[0019] 4. In this invention, the pre-tightening design of the clamping assembly and the controllable deformation of the elastic clamping plate can automatically compensate for the connection gap between the insulating frame and the iron core caused by high temperature, and restore and maintain the connection rigidity in real time. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a stator insulation frame structure for an electric motor proposed in this invention. Figure 2 This is a schematic diagram of the upper insulation frame in a stator insulation frame structure for an electric motor proposed in this invention. Figure 3 This invention proposes a stator insulation frame structure for an electric motor. Figure 2 A schematic diagram of the structure of the supporting components after disassembly; Figure 4 This invention proposes a stator insulation frame structure for an electric motor. Figure 3 Enlarged structural diagram at point A; Figure 5 This invention proposes a stator insulation frame structure for an electric motor. Figure 3 A schematic diagram of the three-dimensional structure viewed from below; Figure 6 This invention proposes a stator insulation frame structure for an electric motor. Figure 2 A schematic diagram of the structure after disassembling the clamping component; Figure 7 This invention proposes a stator insulation frame structure for an electric motor. Figure 6 A schematic diagram of the three-dimensional structure viewed from below; Figure 8 This invention proposes a stator insulation frame structure for an electric motor. Figure 1 A schematic diagram of the three-dimensional structure viewed from below; Figure 9 This invention proposes a stator insulation frame structure for an electric motor. Figure 1 A schematic diagram of the disassembled structure; Figure 10 This invention proposes a stator insulation frame structure for an electric motor. Figure 1 A schematic diagram of the structure consisting of the upper and lower insulation frames; Figure 11 This invention proposes a stator insulation frame structure for an electric motor. Figure 1 Schematic diagram of the middle stator assembly; Figure 12 This invention proposes a stator insulation frame structure for an electric motor. Figure 11 A three-dimensional structural diagram of the middle stator assembly viewed from the side.

[0021] Legend: 1. Stator assembly; 101. Stator core; 102. Upper insulating frame; 103. Lower insulating frame; 2. Countersunk groove; 3. Support assembly; 301. Rubber bladder; 302. Flange; 303. Clamping plate; 304. First countersunk groove; 305. First bolt; 306. Clamping groove; 4. Compensation assembly; 401. Compensation bladder; 402. Compensation plate; 403. Compensation spring; 5. First threaded groove; 6. Compensation groove; 7. Settling groove; 8. Clamping assembly; 801. First elastic element; 8011. Rear support plate; 8012. Sliding block; 8013. Orientation shaft; 8014. Orientation spring; 802. Second elastic element; 803. Elastic clamping plate; 9. Combination groove; 10. Second threaded groove; 11. Combination plate; 12. Second bolt; 13. Second countersunk groove. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 12This invention provides a technical solution: a stator insulation frame structure for an electric motor, comprising multiple stator components 1, which are spaced apart circumferentially and together define an annular structure. Each stator component 1 includes a stator core 101 formed by stamping and stacking multiple silicon steel sheets, and an upper insulation frame 102 and a lower insulation frame 103 symmetrically mounted thereon. The motor stator is composed of multiple stator components 1. In the initial state, the multiple stator components 1 are connected and arranged linearly. After winding the multiple stator components 1 using relevant winding equipment, bending equipment is used to bend the linearly arranged multiple stator components 1, and finally welding equipment is used for welding. After bending, the multiple stator components 1 are spaced apart circumferentially and together define an annular structure. When the multiple stator components 1 arranged linearly are wound, the winding space is larger than that of a traditional integrated motor stator, making the winding equipment operate more smoothly and facilitating the addition of more winding auxiliary functions, making the winding process more stable and more effective. Both the upper insulating frame 102 and the lower insulating frame 103 have grooves 2 on their opposite surfaces, and each groove 2 has a support component 3 embedded in it.

[0024] Specifically, the support assembly 3 includes a rubber bladder 301 embedded in the recess 2, and two clamping plates 303 located on its side and also embedded in the recess 2. Two outwardly extending flanges 302 are formed at the bottom edge of the rubber bladder 301. Each clamping plate 303 has a clamping groove 306 at its bottom, and the two flanges 302 are respectively clamped and connected to the clamping grooves 306 of the two clamping plates 303. The top of the clamping plates 303 has multiple first countersunk grooves 304, and each first countersunk groove 304 is equipped with a first screw. The inner bottom surface of the recessed groove 2 is provided with multiple first threaded grooves 5. The threaded end of the first bolt 305 is screwed into the first threaded groove 5 to fix the clamping plate 303 in the recessed groove 2. Compensation grooves 6 are provided on both opposite end faces of the inner side of the recessed groove 2. Compensation components 4 are embedded in both compensation grooves 6, and the two compensation components 4 are respectively disposed at both ends of the rubber bladder 301. The compensation component 4 includes a compensation bladder 401, which is disposed at the end of the rubber bladder 301 and communicates with the inside of the rubber bladder 301. The compensation bladder 401 communicates with the inside of the rubber bladder 301. The compensation assembly 4, which is filled with a non-Newtonian fluid, also includes a compensation plate 402. The compensation plate 402 is fixedly connected to the side of the compensation bladder 401 facing away from the rubber bladder 301. The compensation plate 402 is slidably connected within the compensation groove 6. Multiple compensation springs 403 are fixedly connected to the side of the compensation plate 402 facing away from the compensation bladder 401. The compensation plate 402 forms an elastic support with the inner wall of the compensation groove 6 through the multiple compensation springs 403. The upper insulating frame 102 and the lower insulating frame 103 each have a combination groove 9 on their opposite sides. Each combination groove 9 is embedded with a... There is a combination plate 11, which is fixed in the combination groove 9 by a plurality of second bolts 12. The bottom of the combination plate 11 has a plurality of second countersunk grooves 13, and the top surface of the combination groove 9 has a plurality of second threaded grooves 10. The second bolts 12 pass through the second countersunk grooves 13 and are screwed into the second threaded grooves 10. The top of the inner side of the combination groove 9 has a plurality of settling grooves 7, and each settling groove 7 is slidably connected with a clamping component 8. One end of the clamping component 8 abuts against the inner top surface of the settling groove 7, and the other end abuts against the top surface of the combination plate 11.

[0025] The specific implementation method is as follows: After the upper insulating frame 102 and the lower insulating frame 103 are connected by plugging, the main body of the stator insulating frame is formed. During the winding process using special equipment, the two rubber bladders 301 set at the top and bottom play a supporting and positioning role for the enameled wire. The surface of the rubber bladder 301 is provided with anti-slip texture, which can prevent the enameled wire from sliding due to tension during the winding process to a certain extent. Since the rubber bladder 301 is filled with non-Newtonian fluid, the surface of the rubber bladder 301 will be concave under the action of the enameled wire, thereby further improving the stability during the winding process and making the winding density of the enameled wire higher. After the motor has been running for a long time, its internal temperature is high. During this process, the upper insulating frame 102 and the lower insulating frame 103 will deform. Because the upper insulating frame 102 and the lower insulating frame 103 are in contact with the enameled wire... Due to the different materials used, the coils have different coefficients of expansion. The coils will be subjected to expansion forces from the upper insulating frame 102 and the lower insulating frame 103. As the force between the coil and the rubber bladder 301 increases, the non-Newtonian fluid inside the rubber bladder 301 gradually flows into the two compensation bladders 401. The compensation bladders 401 gradually expand, pushing the compensation plate 402 to slide in the compensation groove 6 and pressing the compensation spring 403 to cause elastic deformation. This can prevent the internal interaction force of the winding from increasing, thereby avoiding internal arrangement disorder. After the motor cools down, under the action of the reset elastic force of the compensation spring 403, the compensation plate 402 pushes the compensation bladder 401, and the non-Newtonian flow inside the compensation bladder 401 flows back into the rubber bladder 301, thereby reducing the impact of the motor's internal temperature on the stability of the coil and preventing excessive internal force of the winding from causing wear.

[0026] Specifically, the clamping assembly 8 includes a first elastic element 801 and a second elastic element 802 slidably connected within the same settling tank 7. The opposing surfaces of the first elastic element 801 and the second elastic element 802 are connected to an elastic clamping plate 803. The first elastic element 801 includes: a rear support plate 8011, which is slidably connected within the settling tank 7 and whose top abuts against the inner top surface of the settling tank 7; multiple directional shafts 8013, which are fixedly connected to the bottom of the rear support plate 8011; a sliding block 8012, which is slidably connected within the settling tank 7 and whose top has multiple directional grooves corresponding to the multiple directional shafts 8013; the other ends of the multiple directional shafts 8013 are slidably connected within the multiple directional grooves; and multiple directional springs 8014 are respectively sleeved on the multiple directional shafts 8013, so that the sliding block 8012 is elastically supported and connected to the rear support plate 8011. The bottom of the sliding block 8012 is connected to the top of the elastic clamping plate 803.

[0027] The specific implementation method is as follows: Under the high-temperature operating conditions of the motor for a long time, due to the difference in the coefficient of linear expansion caused by different materials, the upper insulating frame 102 and the lower insulating frame 103 become loose with the stator core 101. Affected by the motor vibration, the stability of the upper insulating frame 102 and the lower insulating frame 103 decreases, which in turn affects the stability inside the coil. Since pressure is applied to the clamping assembly 8 when the assembly plate 11 is installed, energy is stored inside the clamping assembly 8. When the upper insulating frame 102 When the connection gap between the lower insulating frame 103 and the stator core 101 increases, the directional spring 8014 releases potential energy. The two sliding blocks 8012 slide towards each other in the settling groove 7 under the push of the two sets of directional springs 8014. The elastic clamp 803 undergoes metal deformation under the compression of the two sliding blocks 8012, thereby improving the connection stability between the upper insulating frame 102 and the lower insulating frame 103 and the stator core 101, avoiding coil disorder, and improving the stability of the motor during operation.

[0028] Working principle and usage: The motor stator adopts a split design and an innovative "winding first, forming later" process. First, multiple stator components 1 arranged in a linear pattern are wound using special equipment. Then, they are formed into a ring through a bending process. Finally, they are welded and fixed to form the final stator. Compared with the traditional integrated ring stator, this linear winding scheme provides an open and ample working space, which not only makes the equipment run more smoothly, but also makes it easier to integrate a variety of winding auxiliary functions, thereby significantly improving the stability of the winding process, winding quality and production efficiency. The lower insulation frame 103 is joined with the lower insulation frame 103 by plugging to form a complete stator insulation frame body. During the winding process, the rubber bladders 301 arranged symmetrically on the upper and lower sides play a key supporting and positioning role for the enameled wire. The anti-slip texture on its surface increases the friction and effectively suppresses the slippage of the enameled wire under tension during winding. More importantly, since the rubber bladder 301 is filled with non-Newtonian fluid, it will undergo adaptive deformation under the pressure of the enameled wire to form a concave that matches it. This soft contact not only eliminates gaps and provides more uniform support force, but also significantly improves the dynamic stability of the winding process, thereby achieving higher winding density and consistency. Under the high-temperature conditions of long-term motor operation, the difference in linear expansion coefficient due to different materials will cause the upper insulation frame 102 and the lower insulation frame 103 to generate additional thermal expansion stress on the enameled wire coil. This stress is transmitted to the rubber bladder 301, forcing the non-Newtonian fluid in the rubber bladder 301 to flow to the compensation bladders 401 at both ends, causing the compensation bladder 401 to expand. The expanded compensation bladder 401 pushes the compensation plate 402 and compresses the compensation spring 403, thereby providing a space for the fluid and storing elastic potential energy. This process effectively absorbs the excessive internal stress caused by thermal expansion, avoiding coil stress disorder and potential wear. When the motor stops running and cools down, the thermal stress decreases. At this time, the compressed compensation spring 403 releases potential energy, pushes the compensation plate 402 to reset, and pushes the non-Newtonian fluid in the compensation bladder 401 back into the rubber bladder 301, so that each component returns to its initial state. This intelligent thermal compensation mechanism significantly reduces the adverse effects of temperature cycling on the internal stability of the winding, ensuring the long-term operational reliability of the motor under thermal expansion and contraction. Under the high-temperature conditions of long-term motor operation, due to the difference in the thermal expansion coefficients of the materials, connection gaps may occur between the upper insulating frame 102, the lower insulating frame 103, and the stator core 101, leading to loosening of the mating surfaces. This loosening, under the influence of motor vibration, will exacerbate the instability of the frames, thereby threatening the fixation of the internal coils. To address this problem, this structure is designed with an adaptive compensation mechanism. When installing the assembly plate 11, a preload is applied to the clamping component 8, causing the internal directional spring 8014 to store elastic potential energy. When connection gaps occur due to thermal expansion, the spring will provide additional elastic potential energy. When the gap is closed, the preload is released, pushing the two sets of sliding blocks 8012 to slide towards each other in the settling groove 7. The sliding blocks 8012 squeeze the elastic clamp 803 in the middle, causing it to produce controllable metal deformation and expand outward, thereby continuously and tightly pressing against the insulation frame and stator core 101, automatically compensating for the gap caused by thermal effects. This mechanism can improve the rigidity and stability of the connection in real time, effectively suppress loosening and micro-movement during operation, and ensure that the coil is not disturbed by additional stress, thereby comprehensively improving the operating stability and reliability of the motor under harsh working conditions.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A stator insulation frame structure for an electric motor, comprising a plurality of stator assemblies (1) spaced circumferentially and collectively defining an annular structure, characterized in that, The stator assembly (1) includes a stator core (101) formed by stamping and stacking multiple silicon steel sheets, and an upper insulating frame (102) and a lower insulating frame (103) symmetrically mounted thereon. The upper insulating frame (102) and the lower insulating frame (103) are both provided with grooves (2) on their opposite surfaces, and each groove (2) is provided with a support component (3). The support assembly (3) includes a rubber bladder (301) embedded in the sink (2) and two clamping plates (303) located on its side and also embedded in the sink (2). The two opposite end faces inside the sink (2) are provided with compensation grooves (6), and compensation components (4) are embedded in the two compensation grooves (6), and the two compensation components (4) are respectively located at both ends of the rubber bladder (301). The compensation component (4) includes a compensation bladder (401), which is disposed at the end of the rubber bladder (301) and communicates with the interior of the rubber bladder (301). The compensation bladder (401) and the rubber bladder (301) are filled with a non-Newtonian fluid. The compensation component (4) also includes a compensation plate (402), which is fixedly connected to the side of the compensation bladder (401) away from the rubber bladder (301). The compensation plate (402) is slidably connected in the compensation groove (6). A plurality of compensation springs (403) are fixedly connected to the side of the compensation plate (402) away from the compensation bladder (401). The compensation plate (402) and the inner wall of the compensation groove (6) are elastically supported by the plurality of compensation springs (403).

2. The stator insulation frame structure for an electric motor according to claim 1, characterized in that, Two flanges (302) extending outward are formed at the bottom edge of the rubber bladder (301), and a clamping groove (306) is provided at the bottom of each clamping plate (303). The two flanges (302) are respectively clamped and connected in the clamping grooves (306) of the two clamping plates (303).

3. The stator insulation frame structure for an electric motor according to claim 2, characterized in that, The top of the clamping plate (303) is provided with a plurality of first countersunk grooves (304), and a first bolt (305) is disposed in each first countersunk groove (304). The inner bottom surface of the countersunk groove (2) is provided with a plurality of first threaded grooves (5). The threaded end of the first bolt (305) is screwed into the first threaded groove (5) to fix the clamping plate (303) in the countersunk groove (2).

4. A stator insulation frame structure for an electric motor according to claim 3, characterized in that, The upper insulating frame (102) and the lower insulating frame (103) are provided with combination grooves (9) on their opposite sides. Each combination groove (9) is embedded with a combination plate (11). The combination plate (11) is fixed in the combination groove (9) by a plurality of second bolts (12). The bottom of the combination plate (11) is provided with a plurality of second countersunk grooves (13). The top surface of the combination groove (9) is provided with a plurality of second threaded grooves (10). The second bolts (12) pass through the second countersunk grooves (13) and are screwed into the second threaded grooves (10).

5. A stator insulation frame structure for an electric motor according to claim 4, characterized in that, Multiple settling grooves (7) are provided on the top of the inner side of the combined groove (9). Each settling groove (7) is slidably connected with a clamping component (8). One end of the clamping component (8) abuts against the inner top surface of the settling groove (7), and the other end abuts against the top surface of the combined plate (11).

6. A stator insulation frame structure for an electric motor according to claim 5, characterized in that, The clamping assembly (8) includes a first elastic element (801) and a second elastic element (802) slidably connected within the same settling tank (7), and the opposing surfaces of the first elastic element (801) and the second elastic element (802) are connected to an elastic clamping plate (803).

7. A stator insulation frame structure for an electric motor according to claim 6, characterized in that, The first elastic element (801) includes: The rear support plate (8011) is slidably connected to the settling trough (7), and its top abuts against the inner top surface of the settling trough (7). Multiple directional shafts (8013) are fixedly connected to the bottom of the rear support plate (8011). The sliding block (8012) is slidably connected to the settling trough (7), and its top is provided with multiple directional grooves corresponding to the multiple directional shafts (8013).

8. A stator insulation frame structure for an electric motor according to claim 7, characterized in that, The other ends of the plurality of directional shafts (8013) are slidably connected to the plurality of directional grooves, and the plurality of directional springs (8014) are respectively sleeved on the plurality of directional shafts (8013), so that the sliding block (8012) is elastically supported and connected to the rear support plate (8011), and the bottom of the sliding block (8012) is connected to the top of the elastic clamp (803).

Citation Information

Patent Citations

  • Insulating frames, insulating frames, and motor stators for electric motors, and their manufacturing methods.

    CN107947420B

  • Stator insulation frame, stator assembly, motor and industrial robot

    CN118572924A