Amplification stator
By designing an amplifying stator, adopting a separate inner and outer ring structure and a reasonable coil layout, the load problem of the stator when increasing the slot fill factor was solved, thus improving the operating stability and efficiency of the motor.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU CHANGE OPTOELECTRONICS CO LTD
- Filing Date
- 2025-05-08
- Publication Date
- 2026-04-21
AI Technical Summary
Increasing the slot fill factor of existing stators to improve motor power can easily overload the motor and affect its performance.
Design an amplifying stator with a separate inner and outer ring structure. The inner ring is provided with toothed protrusions to form a wire groove. The coil is wound on the toothed protrusions and a gap space is provided in the same wire groove. The gap space does not exceed 20% of the wire groove area. The outer ring and the inner ring are connected by grooves and toothed protrusions.
By optimizing coil layout and improving production efficiency, the stator's performance in the motor can be enhanced, motor performance can be improved, roundness can be guaranteed, and efficiency loss caused by uneven magnetic field can be reduced.
Smart Images
Figure CN224154033U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of stator technology, and particularly relates to an amplifying stator. Background Technology
[0002] The torque of a motor is directly proportional to the number of turns of its electromagnetic coil. When the number of turns of the coil increases, the torque of the motor also increases accordingly. In addition, when the coil wire diameter is increased, the resistance of current flow can be reduced, thereby reducing the loss of electrical energy conduction. In other words, increasing the number of coil turns or the coil wire diameter, and other techniques that increase the slot fill factor, all contribute to the improvement of motor efficiency.
[0003] Existing stators typically increase the slot fill factor, which can enhance motor power, but blindly increasing it can easily overload the motor and affect its use. Therefore, we have specially designed an amplifying stator. Utility Model Content
[0004] The purpose of this invention is to address the aforementioned technical problems by providing an amplifying stator that achieves a durable effect.
[0005] In view of this, the present invention provides an amplifying stator, comprising:
[0006] Outer ring body;
[0007] The inner ring is coaxially located within the outer ring, and multiple toothed protrusions are provided on the outer wall of the inner ring, with grooves formed between adjacent toothed protrusions.
[0008] The coil is set in the slot and wound on the toothed protrusion. A gap space is formed between adjacent coils in the same slot. The cross-sectional area of the gap space is less than or equal to 20% of the cross-sectional area of the corresponding slot.
[0009] Among them, multiple tooth-shaped protrusions extend radially outward from the inner ring body in a radial direction.
[0010] In the above technical solution, the coil is further provided with the same number of turns on multiple toothed protrusions.
[0011] In the above technical solution, the outer ring body further includes a main body and a plurality of grooves recessed on the inner ring surface of the main body.
[0012] In the above technical solution, the toothed protrusion is further assembled onto the outer ring body after being fitted with the groove, and the groove and the fitted toothed protrusion complement each other.
[0013] In the above technical solution, furthermore, the cross-sectional area of the gap space in the same wire groove is greater than or equal to nine percent of the cross-sectional area of the wire groove.
[0014] In the above technical solution, the inner ring is further composed of multiple stacked steel sheets.
[0015] In the above technical solution, the outer ring body is further composed of multiple stacked steel sheets.
[0016] In the above technical solution, furthermore, the cross-sectional area of adjacent coils in multiple wire slots is greater than or equal to 70% of the cross-sectional area of the wire slot.
[0017] The beneficial effects of this utility model are as follows:
[0018] 1. A reasonable coil layout can be calculated, which helps to improve the working effect of the stator when it is subsequently assembled into the motor, thereby achieving an amplification effect;
[0019] 2. The separate inner and outer ring design facilitates coil winding, thereby improving production efficiency and product quality, and the outer ring can ensure the overall roundness of the stator. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the assembly between the outer ring body and the inner ring body of this utility model;
[0021] Figure 2 This is a schematic diagram of one end face of the stator of this utility model;
[0022] Figure 3 yes Figure 2 Enlarged view of A in the middle;
[0023] Figure 4 This is a diagram showing the relationship between the coil area and the number of turns in this utility model;
[0024] The markings in the diagram are as follows: 10, stator; 20, outer ring; 21, body; 22, groove; 30, inner ring; 40, toothed protrusion; 50, wire groove; 60, coil; 70, gap space. Detailed Implementation
[0025] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0026] Example 1:
[0027] This embodiment provides an amplification stator, including:
[0028] Outer ring body;
[0029] The inner ring is coaxially located within the outer ring, and multiple toothed protrusions are provided on the outer wall of the inner ring, with grooves formed between adjacent toothed protrusions.
[0030] The coil is set in the slot and wound on the toothed protrusion. A gap space is formed between adjacent coils in the same slot. The cross-sectional area of the gap space is less than or equal to 20% of the cross-sectional area of the corresponding slot.
[0031] Among them, multiple tooth-shaped protrusions extend radially outward from the inner ring body in a radial direction.
[0032] As can be seen from this embodiment, an amplification stator includes an outer ring body, an inner ring body, and a coil;
[0033] The outer ring body is circular, and the inner ring body is located inside the outer ring body. The outer wall of the inner ring body has multiple tooth-shaped protrusions arranged in an array along its circumference. The tooth-shaped protrusions extend outward in a radial direction along the inner ring body until they abut against the outer ring body. The outer ring body and the inner ring body are assembled to form a stator frame, and the grooves are formed between adjacent tooth-shaped protrusions.
[0034] The coil is wound on the toothed protrusion, and there is a gap space between the coils in the slots on both sides of the toothed protrusion. The gap space can reduce the mutual interference between adjacent coils in the same slot, and further improve the operating stability and efficiency of the motor.
[0035] Furthermore, the total area of the cable tray (50) is defined as As;
[0036] The area of the interstitial space is defined as Ag;
[0037] The area on the left side of the gap space that can be wound is defined as Aw1;
[0038] The area on the right side of the gap space that can be wound is defined as Aw2;
[0039] The cross-sectional area of the wire trough that can be wound is defined as Aw, which is the sum of Aw1 and Aw2;
[0040] The actual cross-sectional area of the coil inside the slot is defined as Aweff;
[0041] Based on the above definition, the relationship between coil area (Aweff / Aw) and number of turns (n) can be obtained through statistical analysis.
[0042] Therefore, it can be concluded that on the cross-section of the inner ring body in the radial direction, the cross-sectional area of the gap space located in the same groove is less than or equal to 20% of the cross-sectional area of the groove.
[0043] For example, when the number of coil turns is 400, Aweff can be calculated to be approximately 0.85Aw. Therefore, the area of the gap space should be less than or equal to 20% of the total area of the wire groove, according to the following formula.
[0044] Aweff / As>0.7
[0045] a0.85Aw>0.7As
[0046] aAw / As>14 / 17
[0047] aAg / As>3 / 17
[0048] A reasonable coil layout can be calculated, which will help improve the working effect of the stator when it is subsequently assembled into the motor, thus achieving an amplification effect.
[0049] Furthermore, the separate inner and outer ring design facilitates coil winding, thereby improving production efficiency and product quality, while the outer ring ensures the overall roundness of the stator.
[0050] Example 2:
[0051] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0052] The coil has the same number of turns wound on multiple toothed protrusions.
[0053] As can be seen from this embodiment, by setting coils with the same number of turns on multiple toothed protrusions, the magnetic field strength of each toothed protrusion can be uniformly distributed during use, thereby improving the electromagnetic performance of the stator and reducing efficiency loss caused by uneven magnetic field.
[0054] Example 3:
[0055] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0056] The outer ring body includes a main body and multiple grooves recessed on the inner ring surface of the main body.
[0057] As can be seen from this embodiment, by setting a groove on the inner annular surface of the outer ring body, it is convenient to position the toothed protrusion, thereby improving the connection convenience between the outer ring body and the inner ring body.
[0058] Example 4:
[0059] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0060] After the toothed protrusions and grooves are fitted together, they are assembled onto the outer ring body, and the grooves and the fitted toothed protrusions complement each other.
[0061] As can be seen from this embodiment, the inner ring body is connected to the outer ring body by the complementary interlocking of the toothed protrusion and the groove. At the same time, the groove and the toothed protrusion form a limit, which makes the structure stable after the inner ring body is connected to the ring. The complementary interlocking connection helps to improve the structural strength.
[0062] Example 5:
[0063] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0064] The cross-sectional area of the gap space in the same cable tray is greater than or equal to nine percent of the cross-sectional area of the cable tray.
[0065] As can be seen from this embodiment, the cross-sectional area of the gap space is between 9% and 20% of the cross-sectional area of the wire groove.
[0066] Example 6:
[0067] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0068] The inner ring is made up of multiple stacked steel sheets.
[0069] As can be seen from this embodiment, the outer ring formed by cutting and stacking steel sheets is easy to process and helps to improve production efficiency.
[0070] Example 7:
[0071] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0072] The outer ring is made up of multiple stacked steel sheets.
[0073] As can be seen from this embodiment, the outer ring formed by cutting and stacking steel sheets is easy to process and helps to improve production efficiency.
[0074] Example 8:
[0075] This embodiment provides an amplification stator, which, in addition to the technical solutions of the above embodiments, also has the following technical features.
[0076] The cross-sectional area of adjacent coils in multiple slots is greater than or equal to 70% of the cross-sectional area of the slot.
[0077] As can be seen from this embodiment, the coverage of the coil wound on the toothed protrusion within the groove should be greater than or equal to 70% of the cross-sectional area of the groove, with 9% of the space remaining within the groove for forming gap space.
[0078] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. An amplifying stator, characterized in that it comprises: Outer ring body (20); The inner ring body (30) is coaxially located within the outer ring body (20), and a plurality of toothed protrusions (40) are provided on the outer side wall of the inner ring body (30), and a groove (50) is formed between adjacent toothed protrusions (40). A coil (60) is disposed in a groove (50) and wound on a toothed protrusion (40), and a gap space (70) is formed between adjacent coils (60) in the same groove (50), the cross-sectional area of the gap space (70) being less than or equal to 20 percent of the cross-sectional area of the corresponding groove (50); Among them, a plurality of the tooth-shaped protrusions (40) extend radially toward the outer ring body (20) along the radial direction of the inner ring body (30).
2. A magnification stator according to claim 1, wherein The coil (60) has the same number of turns wound on multiple toothed protrusions (40).
3. A magnification stator according to claim 2, wherein The outer ring body (20) includes a body (21) and a plurality of grooves (22) recessed on the inner ring surface of the body (21).
4. A magnification stator according to claim 3, wherein The toothed protrusion (40) is fitted into the groove (22) and then assembled onto the outer ring body (20), and the groove (22) and the fitted toothed protrusion (40) are complementary.
5. An amplification stator according to claim 4, wherein the plurality of slots are arranged in a plurality of groups, each group having a different number of slots. The cross-sectional area of the gap space (70) in the same groove (50) is greater than or equal to nine percent of the cross-sectional area of the groove (50).
6. An amplification stator according to claim 5, characterised in that The inner ring (30) is made of multiple stacked steel sheets.
7. An amplification stator according to claim 6, characterised in that The outer ring (20) is made of multiple stacked steel sheets.
8. A magnification stator according to claim 7, wherein The cross-sectional area of adjacent coils (60) within the plurality of said slots (50) is greater than or equal to seventy percent of the cross-sectional area of the slots (50).