A stator insulation framework and axial flux motor using the same
By designing a snap-fit structure for the left and right halves of the frame, the problems of complex assembly and poor insulation of the stator insulation frame of the existing axial flux motor are solved, achieving simple assembly and improved insulation, and enhancing the insulation effect of the coil and the iron core.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BROAD OCEAN MOTOR (WUHAN) RESEARCH INSTITUTE CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-07-24
AI Technical Summary
The stator insulation frame of existing axial flux motors is cumbersome to assemble and has poor insulation. The traditional insulation frame is divided into two half-frames, which require external winding and fixing during assembly. The gap in the middle is too close to the iron core, resulting in complicated operation and poor insulation.
A stator insulation frame is designed, including a left half frame and a right half frame. The left half frame and the right half frame are fastened together by the first and second fastening parts to form a receiving space for the iron core. The left front baffle is assembled with the right front baffle, the left rear baffle is assembled with the right rear baffle, and the left top plate is fastened with the right top plate and the left bottom plate is fastened with the right bottom plate through a hook and buckle structure, which enhances insulation and ease of assembly.
It enables simple assembly and fastening of the stator insulation frame, improves insulation, simplifies the operation process, and enhances the creepage distance between the coil and the iron core.
Smart Images
Figure CN224555313U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an axial flux motor with a stator insulating frame and its application. Background Technology
[0002] Existing axial flux motors typically use an I-shaped core structure for the stator. These I-shaped cores are insulated from each other, requiring insulation treatment on all eight sides of the core. Three methods exist: Method 1: Cut and paste insulating paper or film onto the core. However, cutting insulating paper or film is complex and results in poor wrapping around the core. Method 2: Coat the surface with insulating varnish. However, the surface coating is easily worn. Method 3: Use an insulating frame. However, traditional insulating frames consist of two halves with no connecting structure. Assembly requires external wrapping and fixation, and the gap between the halves is too close to the core, making assembly cumbersome and providing poor insulation. Utility Model Content
[0003] This invention provides a stator insulation frame and its application in an axial flux motor, which solves the problem of cumbersome assembly of stator insulation frames in the prior art.
[0004] The technical solution of this utility model is implemented as follows:
[0005] The first objective of this utility model is to provide a stator insulation frame, characterized in that it comprises a left half frame and a right half frame. The left half frame includes a left front baffle and a left rear baffle. A left winding groove plate, a left top plate, and a left bottom plate are provided between the left front baffle and the left rear baffle. The right half frame includes a right front baffle and a right rear baffle. A right winding groove plate, a right top plate, and a right bottom plate are provided between the right front baffle and the right rear baffle. The left winding groove plate, left bottom plate, right bottom plate, right winding groove plate, right top plate, and left top plate form a receiving space for accommodating the iron core. The left front baffle and the right front baffle are joined together, and the left rear baffle and the right rear baffle are joined together. The left top plate and the right top plate are fastened together by a first fastening part, and the left bottom plate and the right bottom plate are fastened together by a second fastening part.
[0006] The first fastening part mentioned above includes a first lower hook buckle provided at the end of the left top plate and a first upper hook buckle provided at the end of the right top plate, the first upper hook buckle and the first lower hook buckle being fastened together.
[0007] The second fastening part mentioned above includes a second upper hook provided at the end of the left base plate and a second lower hook provided at the end of the right base plate, the second upper hook and the second lower hook being fastened together.
[0008] The two ends of the first lower hook extend to the left front baffle and the left rear baffle, and the two ends of the first upper hook extend to the right front baffle and the right rear baffle; the two ends of the second upper hook extend to the left front baffle and the left rear baffle, and the two ends of the second lower hook extend to the right front baffle and the right rear baffle.
[0009] The thickness of the left base plate gradually increases from left to right, and the thickness of the right base plate gradually increases from right to left.
[0010] The thickness of the left top plate gradually increases from left to right, and the thickness of the right top plate gradually increases from right to left.
[0011] The aforementioned left top plate is provided with a left clearance hole; the right top plate is provided with a right clearance hole.
[0012] The aforementioned left clearance hole penetrates the left front baffle and the left rear baffle; the right clearance hole penetrates the right front baffle and the right rear baffle.
[0013] The second objective of this utility model is to provide an axial flux motor, characterized in that it includes a stator insulating frame and an I-shaped stator core, the stator insulating frame being wrapped around the I-shaped stator core, the stator insulating frame being the aforementioned stator insulating frame, the I-shaped stator core being installed in an accommodating space, one end of the I-shaped stator core being secured to the left front baffle and the right front baffle, and the other end of the I-shaped stator core being secured to the left rear baffle and the right rear baffle.
[0014] Compared with the prior art, this utility model has the following advantages:
[0015] 1. The stator insulation frame includes a left half frame and a right half frame. The left half frame includes a left front baffle and a left rear baffle. A left winding slot plate, a left top plate, and a left bottom plate are provided between the left front baffle and the left rear baffle. The right half frame includes a right front baffle and a right rear baffle. A right winding slot plate, a right top plate, and a right bottom plate are provided between the right front baffle and the right rear baffle. The left winding slot plate, left bottom plate, right bottom plate, right winding slot plate, right top plate, and left top plate form a receiving space for accommodating the iron core. The left front baffle and the right front baffle are joined together, and the left rear baffle and the right rear baffle are joined together. The left top plate and the right top plate are fastened together by a first fastening part, and the left bottom plate and the right bottom plate are fastened together by a second fastening part. The left and right halves of the frame are fastened together by the first and second fastening parts, resulting in a simple structure and easy assembly.
[0016] 2. Other advantages of this utility model are described in detail in the embodiments section. Attached Figure Description
[0017] Figure 1This is a schematic diagram of the structure of the stator insulation frame provided in Embodiment 1 of this utility model;
[0018] Figure 2 This is a front view of the stator insulation frame;
[0019] Figure 3 Left view of the stator insulation frame;
[0020] Figure 4 for Figure 3 AA section view;
[0021] Figure 5 Exploded view of the stator insulation frame;
[0022] Figure 6 This is a schematic diagram of the left half of the stator insulation frame.
[0023] Figure 7 This is a schematic diagram of the right half of the stator insulation frame.
[0024] Figure 8 This is a schematic diagram of the structure after the stator insulation frame is installed into the I-shaped stator core in Example 2. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0026] Example 1:
[0027] like Figures 1 to 7As shown, this embodiment provides a stator insulation frame, characterized in that it includes a left half frame 1 and a right half frame 2. The left half frame 1 includes a left front baffle 11 and a left rear baffle 12, with a left winding groove plate 13, a left top plate 14 disposed on top of the left winding groove plate 13, and a left bottom plate 15 disposed at the bottom of the left winding groove plate 13 between the left front baffle 11 and the left rear baffle 12. The right half frame 2 includes a right front baffle 21 and a right rear baffle 22, with a right winding groove plate 23 disposed between the right front baffle 21 and the right rear baffle 22. The right top plate 24, which is set at the top of the right winding slot plate 23, and the right bottom plate 25, which is set at the bottom of the right winding slot plate 23, together with the left winding slot plate 13, the left bottom plate 15, the right bottom plate 25, the right winding slot plate 23, the right top plate 24, and the left top plate 14, form a receiving space 10 for accommodating the iron core. The left front baffle 11 is joined with the right front baffle 21, and the left rear baffle 12 is joined with the right rear baffle 22. The left top plate 14 and the right top plate 24 are fastened together by the first fastening part 3, and the left bottom plate 15 and the right bottom plate 25 are fastened together by the second fastening part 4.
[0028] The stator insulation frame connects the left half frame 1 and the right half frame 2 together through the first snap-fit part 3 and the second snap-fit part 4. The structure is simple and easy to assemble.
[0029] The first fastening part 3 mentioned above includes a first lower hook 141 disposed at the end of the left top plate 14 and a first upper hook 241 disposed at the end of the right top plate 24. The first upper hook 241 and the first lower hook 141 are fastened together. The first lower hook 141 and the first upper hook 241 have a simple structure and a good fastening effect.
[0030] The second fastening part 4 mentioned above includes a second upper hook 151 provided at the end of the left base plate 15 and a second lower hook 251 provided at the end of the right base plate 25. The second upper hook 151 and the second lower hook 251 are fastened together. The two fastening structures make the fastening more secure.
[0031] The two ends of the first lower hook 141 extend to the left front baffle 11 and the left rear baffle 12, and the two ends of the first upper hook 241 extend to the right front baffle 21 and the right rear baffle 22; the two ends of the second upper hook 151 extend to the left front baffle 11 and the left rear baffle 12, and the two ends of the second lower hook 251 extend to the right front baffle 21 and the right rear baffle 22.
[0032] The thickness of the left base plate 15 gradually increases from left to right, and the thickness of the right base plate 25 gradually increases from right to left. This increases the creepage distance between the coil and the iron core.
[0033] The thickness of the left top plate 14 gradually increases from left to right, and the thickness of the right top plate 24 gradually increases from right to left.
[0034] The left top plate 14 is provided with a left clearance hole 16; the right top plate 24 is provided with a right clearance hole 26.
[0035] The aforementioned left clearance hole 16 penetrates the left front baffle 11 and the left rear baffle 12; the right clearance hole 26 penetrates the right front baffle 21 and the right rear baffle 22. The left clearance hole 16 and the right clearance hole 26 can increase the strength of the stator insulation frame.
[0036] Example 2:
[0037] like Figure 8 As shown, the first objective of this utility model is to provide an axial flux motor, comprising a stator insulating frame 9 and an I-shaped stator core 5, wherein the stator insulating frame 9 is wrapped around the I-shaped stator core 5. The stator insulating frame 9 is the stator insulating frame described in Embodiment 1. The I-shaped stator core 5 is installed in the accommodating space 10. One end of the I-shaped stator core 5 is secured to the left front baffle 11 and the right front baffle 21, and the other end of the I-shaped stator core 5 is secured to the left rear baffle 12 and the right rear baffle 22.
[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A stator insulation frame, characterized in that: The system includes a left half frame (1) and a right half frame (2). The left half frame (1) includes a left front baffle (11) and a left rear baffle (12). A left winding groove plate (13) is provided between the left front baffle (11) and the left rear baffle (12), a left top plate (14) is provided on the top of the left winding groove plate (13), and a left bottom plate (15) is provided on the bottom of the left winding groove plate (13). The right half frame (2) includes a right front baffle (21) and a right rear baffle (22). A right winding groove plate (23) is provided between the right front baffle (21) and the right rear baffle (22), and a right bottom plate (15) is provided on the top of the right winding groove plate (23). The top plate (24), the right bottom plate (25) set at the bottom of the right winding slot plate (23), the left winding slot plate (13), the left bottom plate (15), the right bottom plate (25), the right winding slot plate (23), the right top plate (24) and the left top plate (14) form a receiving space (10) for accommodating the iron core. The left front baffle (11) is joined with the right front baffle (21), the left rear baffle (12) is joined with the right rear baffle (22), the left top plate (14) and the right top plate (24) are fastened together by the first fastening part (3), and the left bottom plate (15) and the right bottom plate (25) are fastened together by the second fastening part (4).
2. The stator insulation frame according to claim 1, characterized in that: The first fastening part (3) includes a first lower hook (141) provided at the end of the left top plate (14) and a first upper hook (241) provided at the end of the right top plate (24), and the first upper hook (241) and the first lower hook (141) are fastened together.
3. A stator insulation frame according to claim 2, characterized in that: The second fastening part (4) includes a second upper hook (151) provided at the end of the left bottom plate (15) and a second lower hook (251) provided at the end of the right bottom plate (25), and the second upper hook (151) and the second lower hook (251) are fastened together.
4. A stator insulation frame according to claim 3, characterized in that: The two ends of the first lower hook (141) extend to the left front baffle (11) and the left rear baffle (12), and the two ends of the first upper hook (241) extend to the right front baffle (21) and the right rear baffle (22); the two ends of the second upper hook (151) extend to the left front baffle (11) and the left rear baffle (12), and the two ends of the second lower hook (251) extend to the right front baffle (21) and the right rear baffle (22).
5. A stator insulation frame according to any one of claims 1 to 4, characterized in that: The thickness of the left base plate (15) gradually increases from left to right, and the thickness of the right base plate (25) gradually increases from right to left.
6. A stator insulation frame according to claim 5, characterized in that: The thickness of the left top plate (14) gradually increases from left to right, and the thickness of the right top plate (24) gradually increases from right to left.
7. A stator insulation frame according to claim 6, characterized in that: The left top plate (14) is provided with a left clearance hole (16); the right top plate (24) is provided with a right clearance hole (26).
8. A stator insulation frame according to claim 7, characterized in that: The left clearance hole (16) passes through the left front baffle (11) and the left rear baffle (12); the right clearance hole (26) passes through the right front baffle (21) and the right rear baffle (22).
9. An axial flux motor, comprising a stator insulating frame (9) and an I-shaped stator core (5), wherein the stator insulating frame (9) is wrapped around the I-shaped stator core (5), characterized in that: The stator insulation frame (9) is the stator insulation frame according to any one of claims 1 to 8. The I-shaped stator core (5) is installed in the accommodating space (10). One end of the I-shaped stator core (5) is stuck outside the left front baffle (11) and the right front baffle (21), and the other end of the I-shaped stator core (5) is stuck outside the left rear baffle (12) and the right rear baffle (22).