Coil integrated stator structure and motor

Abstract

The utility model discloses a coil integrated stator structure and a motor, and the stator structure comprises a plurality of iron cores, the plurality of iron cores are sequentially spliced to form a sector, and any iron core comprises a winding part used for winding a coil winding; the plurality of frameworks are arranged, and the plurality of frameworks are respectively wrapped on the outer sides of the winding parts of the plurality of iron cores; and the coil windings are sequentially wound on the winding parts of the iron cores in the arrangement direction of the iron cores, and the coil windings between the winding parts of every two adjacent iron cores are continuously arranged. According to the utility model, the problems of complex structure, low production efficiency and poor product stability of the existing stator are solved.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a coil-integrated stator structure and motor. Background Technology

[0002] The stator structure of a rotating electric machine is an important component of the motor. The electronic structure typically includes the stator core and stator windings. In some existing motor stator structures, several cores are spliced ​​together to form a cylinder. The outside of the cores is wrapped with insulating material, and coils are wound on the insulating material. Each core has its own individually wound coil, and then the coils of each core are welded together. This structure results in low production efficiency, and because there are many weld points in the stator structure, the coil resistance increases, the temperature rise increases, and the reliability of the product is unstable. Utility Model Content

[0003] The main purpose of this utility model is to provide a coil-integrated stator structure and motor, which aims to solve the problems of complex stator structure, low production efficiency and poor product stability of existing stator structures.

[0004] To achieve the above objectives, this utility model proposes an integrated coil stator structure, comprising:

[0005] The iron core is provided in a plurality of them, and the plurality of iron cores are sequentially spliced ​​together to form a fan shape. Each iron core includes a winding part for winding a coil winding.

[0006] The skeleton is provided in several parts, and the skeletons are respectively wrapped around the outside of the winding part of the iron core;

[0007] The coil windings are sequentially wound around the winding portions of the iron cores along the arrangement direction of the iron cores, and the coil windings between the winding portions of two adjacent iron cores are continuously arranged without interruption.

[0008] Optionally, the winding directions of the coil windings of two adjacent iron cores are arranged in opposite directions.

[0009] Optionally, the winding portion of the iron core is provided with an outer plate and an inner plate at both ends, and along the splicing direction of the iron core, the first end of the outer plate is provided with a splicing protrusion, and the second end of the outer plate is provided with a splicing groove.

[0010] Optionally, the cross-sections of both the splicing protrusion and the splicing groove are set to semi-circular.

[0011] Optionally, the skeleton includes a first skeleton unit and a second skeleton unit arranged in a U-shape, the first skeleton unit and the second skeleton unit being symmetrically inserted into the winding portion of the iron core.

[0012] Optionally, both the first and second skeleton units are provided with baffles that respectively fit into the outer and inner panels.

[0013] Optionally, the coil winding is configured with a square wire structure.

[0014] Optionally, the outer plates of two adjacent iron cores are welded together.

[0015] Optionally, the skeleton is configured as a one-piece molded structure made of LCP material.

[0016] To achieve the above objectives, this utility model also proposes an electric motor, including any of the stator structures described above.

[0017] The beneficial effects of this invention are as follows: it improves the winding method of the coil winding in the existing stator structure. Because the coil winding is continuously and uninterruptedly arranged between the winding portions of two adjacent iron cores, it reduces the additional resistance caused by welded joints in the traditional structure. This not only reduces the energy consumption of the motor but also reduces the temperature rise caused by increased resistance, thereby improving the operating efficiency and reliability of the motor. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the stator structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the stator winding of this utility model;

[0021] Figure 3 This is a schematic diagram of the core structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the skeleton structure of this utility model;

[0023] Label Explanation:

[0024] 1. Iron core; 11. Winding section; 12. Outer plate; 13. Inner plate; 14. Splicing protrusion; 15. Splicing groove;

[0025] 21. First frame unit; 22. Second frame unit; 23. Baffle;

[0026] 3. Coil winding.

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] One embodiment of this utility model proposes a stator structure with an integrated coil, see reference. Figure 1 ,include:

[0032] The iron core 1 is provided in a plurality of them, and the plurality of iron core 1 are sequentially spliced ​​together to form a fan shape. Each iron core 1 includes a winding part 11 for winding the coil winding 3.

[0033] The skeleton is provided in several parts, and the skeletons are respectively wrapped around the outside of the winding part 11 of the iron core 1.

[0034] The coil winding 3 is wound sequentially around the winding portion 11 of the iron core 1 along the arrangement direction of the plurality of iron cores 1, and the coil winding 3 between two adjacent winding portions 11 of the iron core 1 is continuously arranged without interruption.

[0035] In this example, the integrated stator structure achieves continuous and uninterrupted winding of the coil winding 3 by splicing several iron cores 1 into a fan shape and sequentially winding the coil winding 3 along the arrangement direction of the iron cores 1. In actual production, several iron cores 1 can be grouped together according to production needs, with each group of iron cores 1 arranged in a fan shape. By adjusting the number of iron core 1 groups, stator structures of different diameters can be spliced ​​together. By splicing the iron cores 1 into a fan shape and using a frame to fix and support the coil winding 3, the integrated stator structure maintains a compact stator structure while optimizing the magnetic circuit distribution and improving motor performance. In addition, this design facilitates motor assembly and maintenance, avoiding the cumbersome process of individually winding the coil for each iron core 1 and then welding it, as is done in traditional structures, thus significantly improving production efficiency. Since the coil winding 3 is continuously and uninterruptedly arranged between the winding portions 11 of adjacent iron cores 1, the additional resistance caused by welding joints in traditional structures is reduced. This not only reduces the motor's energy consumption but also minimizes temperature rise caused by increased resistance, improving the motor's operating efficiency and reliability. Simultaneously, the structure of this embodiment reduces the overall number of solder joints, thereby lowering the risk of failure due to poor welding or solder joint detachment. Furthermore, since the coil winding 3 is continuous and uninterrupted, motor failures caused by loose or broken joints are reduced, further enhancing product reliability. The coil winding 3 can be more tightly wound onto the winding portion 11 of the iron core 1, thereby improving material utilization. This not only reduces raw material waste but also lowers production costs.

[0036] Furthermore, the winding directions of the coil windings 3 of two adjacent iron cores 1 are arranged in opposite directions. Specifically, in this embodiment, referring to... Figure 2 The arrows above indicate the winding direction of the overall coil winding 3, starting from the left core 1 and continuing continuously to the left and right cores 1 without interruption. The three arrows below represent the winding direction of the coil winding 3 on each core 1. With this structure, when the coil winding 3 is energized, it generates a magnetic field around the core 1. The opposite winding directions of the coil winding 3 on adjacent cores 1 allow the magnetic fields generated by adjacent cores 1 to partially cancel each other out, thus balancing the electromagnetic forces within the stator structure and reducing electromagnetic vibration and noise. Due to this electromagnetic force balance, the stator structure is more stable during operation, reducing mechanical losses and wear caused by electromagnetic vibration and extending the stator's service life. The opposite winding directions of the coil winding 3 on adjacent cores 1 also optimize heat dissipation to some extent. Since the coil winding 3 generates heat when energized, the opposite winding direction helps to evenly distribute and dissipate the heat, thereby improving the heat dissipation performance of the stator structure.

[0037] Further, refer to Figure 3The winding portion 11 of the iron core 1 is provided with an outer plate 12 and an inner plate 13 at both ends. Along the splicing direction of the iron core 1, the first end of the outer plate 12 is provided with a splicing protrusion 14, and the second end of the outer plate 12 is provided with a splicing groove 15.

[0038] In this example, the outer plate 12 and inner plate 13 not only enhance the strength of the iron core 1 itself, but also, through precise splicing design, make the entire stator structure more stable during operation, reducing failures caused by structural loosening. Simultaneously, the outer plate 12 and inner plate effectively confine the coil winding 3 to the winding portion 11 during winding, providing effective winding space for the coil winding 3 and effectively limiting its movement to prevent it from detaching from the winding portion 11. Furthermore, the interlocking of the protrusions and grooves ensures a tighter splicing between the iron cores 1, reducing electromagnetic leakage and mechanical vibration caused by loose splicing, thereby improving the overall performance of the motor. The protrusion and groove design makes the splicing process of the iron core 1 simpler and faster, reducing assembly difficulty and cost, and improving production efficiency.

[0039] Furthermore, the cross-sections of both the splicing protrusion 14 and the splicing groove 15 are set to semi-circular.

[0040] In this embodiment, the semi-circular splicing protrusion 14 and splicing groove 15 design make the splicing between the iron cores 1 tighter, reducing electromagnetic leakage and mechanical vibration caused by splicing gaps. Simultaneously, this design also enhances the connection strength between the iron cores 1, improving the overall stability of the stator structure. The semi-circular splicing structure makes the splicing process of the iron cores 1 more intuitive and simple; operators only need to align the protrusion with the groove and then gently push to achieve a tight splice. This greatly reduces assembly difficulty and cost, and improves production efficiency. Furthermore, the welding of the outer plates 12 between adjacent iron cores 1 further enhances the stability of the splicing between adjacent iron cores 1.

[0041] Furthermore, the skeleton includes a first skeleton unit 21 and a second skeleton unit 22 arranged in a U-shape, and the first skeleton unit 21 and the second skeleton unit 22 are symmetrically inserted into the winding portion 11 of the iron core 1.

[0042] In this embodiment, the frame adopts a spliced ​​structure. Through the plug-in design of the first frame unit 21 and the second frame unit 22, the frame can more tightly wrap the winding portion 11 of the iron core 1, thereby enhancing the overall stability of the stator structure. This helps to reduce electromagnetic vibration and noise, and improve the operating efficiency of the motor. The frame structure provides effective insulation between the iron core 1 and the coil winding 3, improving safety in use.

[0043] Furthermore, both the first frame unit 21 and the second frame unit 22 are provided with baffles 23 that respectively fit into the outer plate 12 and the inner plate 13. By setting the baffle 23 structure, the coil winding 3 can be effectively insulated and separated from the outer plate 12 and the inner plate 13 of the iron core 1, improving safety performance. At the same time, the design of the baffle 23 not only provides additional support and protection, but also helps to optimize heat dissipation performance. When the coil winding 3 is energized and generates heat, the heat can be conducted to the external environment through the material of the frame and the baffle 23, thereby accelerating the heat dissipation rate and reducing the temperature of the stator structure.

[0044] Furthermore, the coil winding 3 is configured with a square wire structure. In this embodiment, the traditional round wire is eliminated from the coil winding 3, and square wire is used instead. This allows for more efficient filling of the coil space, especially in situations requiring close arrangement. The geometry of the square wire allows it to fit together more tightly, reducing gaps inside the coil and thus improving space utilization. The close arrangement of the square wire helps enhance the electromagnetic performance of the coil. Due to the increased space occupancy rate inside the coil, the electromagnetic field distribution is more uniform, thereby improving inductance and quality factor. In addition, the square wire also performs well in suppressing current harmonics and reducing reactive power losses.

[0045] Furthermore, the frame is constructed as a one-piece structure made of LCP material. LCP material possesses high strength, high modulus, and good dimensional stability, enabling the stator frame to withstand significant mechanical stress and maintain shape stability, thereby improving the overall performance and service life of the motor. LCP material exhibits excellent heat resistance, maintaining stable performance in high-temperature environments. This is crucial for the stable operation of the motor in high-temperature conditions. LCP material has a low dielectric constant and low dielectric loss, resulting in excellent performance of the stator frame in electromagnetic fields. This helps reduce electromagnetic interference and losses, improving the efficiency and stability of the motor.

[0046] An embodiment of this utility model also proposes a motor including any of the stator structures described above. Since the motor proposed in this embodiment includes all the solutions of all the above-described stator structures, it has at least the same technical effects as the stator structures described above, which will not be elaborated here.

[0047] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A coil-integrated stator structure, characterized in that, include: The iron core is provided in a plurality of them, and the plurality of iron cores are sequentially spliced ​​together to form a fan shape. Each iron core includes a winding part for winding a coil winding. The skeleton is provided in several parts, and the skeletons are respectively wrapped around the outside of the winding part of the iron core; The coil windings are sequentially wound around the winding portions of the iron cores along the arrangement direction of the iron cores, and the coil windings between the winding portions of two adjacent iron cores are continuously arranged without interruption.

2. The coil-integrated stator structure according to claim 1, characterized in that, The winding directions of the coils of two adjacent iron cores are arranged in opposite directions.

3. The coil-integrated stator structure according to claim 1, characterized in that, The winding portion of the iron core is provided with an outer plate and an inner plate at both ends. Along the splicing direction of the iron core, the first end of the outer plate is provided with a splicing protrusion, and the second end of the outer plate is provided with a splicing groove.

4. The coil-integrated stator structure according to claim 3, characterized in that, Both the splicing protrusion and the splicing groove have semi-circular cross-sections.

5. The coil-integrated stator structure according to claim 3, characterized in that, The skeleton includes a first skeleton unit and a second skeleton unit arranged in a U-shape, and the first skeleton unit and the second skeleton unit are symmetrically inserted into the winding part of the iron core.

6. The coil-integrated stator structure according to claim 5, characterized in that, Both the first and second skeleton units are provided with baffles that respectively fit into the outer and inner plates.

7. The coil-integrated stator structure according to claim 1, characterized in that, The coil winding is configured with a square wire structure.

8. The coil-integrated stator structure according to claim 3, characterized in that, The outer plates of two adjacent iron cores are welded together.

9. The coil-integrated stator structure according to claim 1, characterized in that, The skeleton is a one-piece molded structure made of LCP material.

10. An electric motor, characterized in that, Includes the stator structure described in any one of claims 1-9.

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