A quick embedding structure of a stator coil

Abstract

The utility model relates to motor engineering technical field, concretely is a kind of stator coil quick embedding structure, including stator main body, stator main body includes stator core, and the outer periphery of stator core is equipped with several pole shoes, and pole shoe is equipped with coil winding set, and coil winding set includes winding post, outer baffle and inner baffle.The stator coil quick embedding structure, by setting the coil winding set of independent component, can be pre-completed coil winding in the state of being separated from stator main body, after winding, only need to be set in the outer side of pole shoe by the sleeve cavity axial sleeve of coil winding set, the assembly of coil and stator main body can be completed, without in the limited space of stator core on-site winding, reduce the space limitation of winding process, help to shorten overall assembly time, improve the convenience of coil embedding.

Description

Technical Field

[0001] This utility model relates to the field of motor engineering technology, specifically to a stator coil quick-mounting structure. Background Technology

[0002] The stator coil is the core component of the motor stator, made of insulated wire. When energized, it generates a magnetic field, which interacts with the rotor to convert energy. It is widely used in generators, motors, and other equipment. Its performance directly affects the motor's efficiency, power, and other parameters; the winding process and insulation treatment are crucial for operational stability.

[0003] Utility model patent CN209948804U discloses a stator core, including a stator core body. The stator core body includes multiple pole shoes and a yoke for fixing the pole shoes. The yoke is provided with multiple relief grooves, and at least one relief groove has a lead hole at its end for the motor lead wire to pass through. This stator core has the advantages of convenient and firm winding, solving the problems of existing methods where enameled wire is wound on both sides of the yoke of the core, and the lead wire needs to be fixed with cable ties or other fixing parts after welding the enameled wire to prevent it from unraveling. However, after a long period of use, the cable ties are prone to loosening, resulting in the motor lead wire not being fixed to the end of the stator core.

[0004] The stator core has pole shoes that are directly supplied with enameled wire for winding. The winding process requires the enameled wire to be wound onto the pole shoes one turn at a time after the stator core is assembled. Since the pole shoes and yoke are an integral structure and the space between adjacent pole shoes is limited, the winding operation must be completed within the fixed space of the stator core. It is impossible to pre-wind in batches, which results in a long winding time. In view of this, we propose a stator coil quick-mounting structure. Utility Model Content

[0005] The purpose of this invention is to provide a rapid stator coil mounting structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A stator coil quick-installation structure includes a stator body, which comprises a stator core formed by stacking multiple sheet-like structures. A plurality of pole shoes are arranged in an array around the outer periphery of the stator core with the stator core axis as the center. A coil winding sleeve for winding the coil is installed outside the stator body. The coil winding sleeve includes a winding post, an outer baffle integrally formed at the outer end of the winding post, and an inner baffle integrally formed at the inner end of the winding post. The coil winding sleeve is axially sleeved on the outside of the pole shoes, and the coil is wound around the outside of the winding post. The coil winding sleeve and the pole shoes are detachably connected.

[0008] Preferably, the stator core has end rings at both the top and bottom ends, and the two end rings are symmetrically distributed with the stator core as the center. The end of the end ring away from the stator core is provided with a positioning ring coaxially. Several screws are arranged in a circular array with the stator core axis as the center. The screws pass through the stator core along the axis of the stator core. The end of the screw passes through the end ring and the positioning ring in sequence and is threaded with a nut.

[0009] In this configuration, the stator core, end rings, and positioning rings are securely connected through the cooperation of screws and nuts, enhancing the overall structural stability.

[0010] Preferably, a sleeve cavity is formed on the inner end face of the inner baffle, the sleeve cavity extends into the winding post, and the coil winding is sleeved on the outside of the pole shoe through the sleeve cavity;

[0011] In this configuration, the cavity provides precise positioning for the coil winding sleeve and the pole shoe, ensuring their coaxiality and facilitating rapid assembly.

[0012] Preferably, the inner baffle is provided with positioning protrusions at both the top and bottom edges near the end face of the stator core, and the end ring is provided with a plurality of positioning grooves in a ring array at the outer edge away from the end face of the stator core. When the coil winding is sleeved onto the pole shoe, the two positioning protrusions on the inner baffle are respectively inserted into the positioning grooves corresponding to the two end rings.

[0013] In this configuration, the positioning protrusion and positioning groove work together to restrict the circumferential rotation of the coil winding sleeve, thereby improving the stability after assembly.

[0014] Preferably, a hemispherical positioning recess is provided on the end face of the positioning protrusion away from the inner baffle, and a plurality of protruding hemispherical positioning protrusions are provided in a circular array around the end face of the positioning ring near the stator core, with the positioning ring axis as the center, and the positioning protrusions extend into the positioning recess.

[0015] In this setting, the positioning recess and the positioning protrusion fit together, further enhancing the positioning effect of the coil winding sleeve and preventing the sleeve from falling off the pole shoe.

[0016] Preferably, the end ring has a plurality of through holes that axially penetrate the end ring, and the number of through holes is equal to the number of screws, with the screws passing through the through holes;

[0017] In this configuration, the through hole provides a through channel for the screw, ensuring that the screw can pass smoothly through the end ring for fixation.

[0018] Preferably, the positioning ring has a plurality of sleeve holes through which the positioning ring passes. The number of sleeve holes is equal to the number of screws. The screws pass through the sleeve holes, and the nuts on the screws abut against the positioning ring when tightened.

[0019] In this configuration, the sleeve hole, screw, and nut can be used to securely fix the positioning ring.

[0020] Preferably, the outer and inner baffles have outer contour dimensions that are larger than the cross-sectional dimensions of the winding post, and a winding groove is formed at the periphery of the winding post between the outer and inner baffles, with the coil wound in the winding groove.

[0021] In this setup, the winding slot provides a regular winding space for the coil, while the outer and inner baffles restrict the axial displacement of the coil, keeping the winding neat.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This stator coil quick-installation structure features an independent coil winding sleeve with a winding groove formed around the winding post. The coil can be pre-wound while detached from the stator body. After winding, the coil winding sleeve is simply axially fitted onto the outside of the pole shoe through the sleeve cavity to complete the assembly of the coil with the stator body. This structure achieves the separation of coil winding and stator body assembly, eliminating the need for on-site winding within the confined space of the stator core. This reduces the spatial constraints of the winding process, helps shorten the overall assembly time, and improves the convenience of coil installation. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is an exploded view of the stator body in this utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the middle ring of this utility model;

[0027] Figure 4 This is a schematic diagram of the positioning ring in this utility model;

[0028] Figure 5 This is a schematic diagram of the coil winding sleeve in this utility model;

[0029] The meanings of the labels in the diagram are as follows:

[0030] 100. Stator body; 110. Stator core; 111. Pole shoe; 120. End ring; 121. Positioning groove; 122. Through hole; 130. Positioning ring; 131. Positioning protrusion; 132. Sleeve hole; 140. Screw;

[0031] 200. Coil winding sleeve; 210. Winding post; 220. Outer baffle; 230. Inner baffle; 231. Cavity; 232. Positioning protrusion; 2321. Positioning recess; 240. Winding groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0033] Please see Figures 1-5 A stator coil quick-installation structure includes a stator body 100, which comprises a stator core 110 formed by stacking multiple sheet-like structures. The overall thickness of the stator core 110 can be flexibly adjusted to adapt to the installation requirements of equipment of different specifications. A plurality of pole shoes 111 are arranged in an array around the axis of the stator core 110 on its outer periphery. The arrayed pole shoes 111 provide a uniform installation position for the coil winding sleeve 200, ensuring... To ensure the uniformity of the magnetic field distribution, a coil winding sleeve 200 for winding coils is installed outside the stator body 100. The coil winding sleeve 200 includes a winding post 210, an outer baffle 220 integrally formed at the outer end of the winding post 210, and an inner baffle 230 integrally formed at the inner end of the winding post 210. The winding post 210 provides a winding carrier for the coil, and the outer baffle 220 and the inner baffle 230 can limit the coil on the winding post 210 to prevent axial displacement of the coil during assembly and use.

[0034] like Figure 1 and Figure 5 As shown, in this utility model, a sleeve cavity 231 is provided on the inner end face of the inner baffle 230. The sleeve cavity 231 extends into the winding post 210. The coil winding sleeve 200 is sleeved on the outside of the pole shoe 111 through the sleeve cavity 231. The sleeve cavity 231 provides precise positioning for the connection between the coil winding sleeve 200 and the pole shoe 111, ensuring the coaxiality of the two during assembly. This allows the coil winding sleeve 200 to be axially sleeved on the outside of the pole shoe 111, and makes the coil winding sleeve 200 and the pole shoe 111 detachably connected. The detachable connection method facilitates the separate production, winding, and subsequent maintenance and replacement of the coil winding sleeve 200.

[0035] like Figure 1 and Figure 5As shown, specifically, the outer contour dimensions of the outer baffle 220 and the inner baffle 230 are both larger than the cross-sectional dimensions of the winding post 210. A winding groove 240 is formed on the periphery of the winding post 210 between the outer baffle 220 and the inner baffle 230. The formation of the winding groove 240 clarifies the winding space of the coil, enabling the coil to be wound regularly on the winding post 210, thereby improving the neatness of the coil winding. The coil is wound in the winding groove 240 on the outside of the winding post 210.

[0036] like Figures 1-4 As shown, furthermore, end rings 120 are provided at both the top and bottom ends of the stator core 110. The end rings 120 can press the sheet-like structure of the stator core 110 to prevent the sheet-like structure from loosening. The two end rings 120 are symmetrically distributed with the stator core 110 as the center. At the end of the end ring 120 away from the stator core 110, a positioning ring 130 is provided coaxially. The positioning ring 130 can enhance the structural stability of the end ring 120 and at the same time provide positioning and cooperation with the coil winding sleeve 200. In the basic structure, a plurality of screws 140 are arranged in a circular array around the axis of the stator core 110. The screws 140 penetrate the stator core 110 along its axial direction, thus axially fixing the stator core 110, end ring 120, and positioning ring 130, ensuring a secure connection. The ends of the screws 140 sequentially pass through the end ring 120 and positioning ring 130 and are threaded with nuts. The end ring 120 has a plurality of through holes 122, which axially penetrate the end ring 120 and provide channels for the screws 140 to pass through, ensuring smooth passage. The number of through holes 122 is equal to the number of screws 140, and the screws 140 pass through the through holes 122. The positioning ring 130 has several sleeve holes 132 through which the positioning ring 130 passes. The sleeve holes 132 cooperate with the through holes 122 so that the screw 140 can pass through the positioning ring 130 in sequence, ensuring the fixing effect of the screw 140 on the positioning ring 130. The number of sleeve holes 132 is equal to the number of screws 140. The screw 140 passes through the sleeve holes 132. When the nut on the screw 140 is tightened, it abuts against the positioning ring 130. The fastening force can be transmitted through the screw 140, further strengthening the connection between the stator core 110, the end ring 120 and the positioning ring 130.

[0037] like Figure 2 , Figure 3 and Figure 5As shown, in addition, the inner baffle 230 is provided with positioning protrusions 232 at both the top and bottom edges near the end face of the stator core 110. The end ring 120 is provided with a number of positioning grooves 121 in a ring array at the outer edge away from the end face of the stator core 110. When the coil winding sleeve 200 is fitted onto the pole shoe 111, the two positioning protrusions 232 on the inner baffle 230 are respectively inserted into the positioning grooves 121 corresponding to the two end rings 120. The positioning protrusions 232 and the positioning grooves 121 can limit the relative position of the coil winding sleeve 200 and the end ring 120.

[0038] like Figure 2 , Figure 4 and Figure 5 As shown, it is worth noting that a hemispherical positioning recess 2321 is provided on the end face of the positioning convex plate 232 away from the inner baffle 230. Several protruding hemispherical positioning protrusions 131 are arranged in a ring array with the positioning ring 130 axis as the center on the end face of the positioning ring 130 near the stator core 110. The positioning protrusions 131 extend into the positioning recess 2321. The hemispherical positioning recess 2321 and the positioning protrusions 131 cooperate to further enhance the positioning effect between the coil winding sleeve 200 and the positioning ring 130 after the positioning convex plate 232 is inserted into the positioning groove 121, and prevent the coil winding sleeve 200 from falling off the pole shoe 111.

[0039] In this embodiment, the stator coil quick-installation structure is used as follows: First, multiple sheet-like structures are stacked to form a stator core 110. Then, end rings 120 are installed at the top and bottom ends of the stator core 110, and a positioning ring 130 is installed at the end of the end ring 120 away from the stator core 110. Next, a screw 140 is inserted sequentially through the through hole 122 on the stator core 110, the end ring 120, and the sleeve hole 132 on the positioning ring 130 along the axial direction of the stator core 110. Subsequently, a coil is pre-wound in the winding groove 240 outside the winding post 210 to form a coil winding sleeve 200. Then, the coil winding sleeve 200 is formed. The coil winding sleeve 200, with the coil wound, is axially fitted onto the outside of the pole shoe 111 through the sleeve cavity 231 on the inner baffle 230, so that the positioning protrusion 232 on the inner baffle 230 is inserted into the corresponding positioning groove 121 on the end ring 120, and at the same time, the positioning protrusion 131 on the positioning ring 130 extends into the positioning recess 2321 on the positioning protrusion 232. Finally, the nut on the screw 140 is tightened so that the nuts at both ends of the screw 140 clamp the stator core 110, the end ring 120 and the positioning ring 130, and the coil winding sleeve 200 is restricted on the pole shoe 111, thus completing the installation of the entire stator coil.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A stator coil quick-installation structure, comprising a stator body (100), characterized in that: The stator body (100) includes a stator core (110) formed by stacking multiple sheet-like structures. The stator core (110) has a number of pole shoes (111) arranged in an array around the axis of the stator core (110). A coil winding sleeve (200) for winding coils is installed on the outside of the stator body (100). The coil winding sleeve (200) includes a winding post (210), an outer baffle (220) integrally formed at the outer end of the winding post (210), and an inner baffle (230) integrally formed at the inner end of the winding post (210). The coil winding sleeve (200) is axially sleeved on the outside of the pole shoes (111), and the coil is wound on the outside of the winding post (210). The coil winding sleeve (200) and the pole shoes (111) are detachably connected.

2. The stator coil quick-mounting structure according to claim 1, characterized in that: The stator core (110) has end rings (120) at both the top and bottom ends. The two end rings (120) are symmetrically distributed with the stator core (110) as the center. The end of the end ring (120) away from the stator core (110) is coaxially provided with a positioning ring (130). The stator core (110) has a plurality of screws (140) arranged in a ring array with the axis of the stator core (110) as the center. The screws (140) pass through the stator core (110) along the axial direction of the stator core (110). The end of the screw (140) passes through the end ring (120) and the positioning ring (130) in sequence and is threaded with a nut.

3. The stator coil quick-mounting structure according to claim 1, characterized in that: A sleeve cavity (231) is provided on the inner end face of the inner baffle (230). The sleeve cavity (231) extends into the winding post (210). The coil winding sleeve (200) is sleeved on the outside of the pole shoe (111) through the sleeve cavity (231).

4. The stator coil quick-mounting structure according to claim 2, characterized in that: The inner baffle (230) is provided with positioning protrusions (232) at both the top and bottom edges near the end face of the stator core (110). The end ring (120) is provided with a number of positioning grooves (121) in a ring array at the outer edge away from the end face of the stator core (110). When the coil winding sleeve (200) is fitted onto the pole shoe (111), the two positioning protrusions (232) on the inner baffle (230) are respectively inserted into the positioning grooves (121) corresponding to the two end rings (120).

5. The stator coil quick-mounting structure according to claim 4, characterized in that: The positioning protrusion (232) has a hemispherical positioning recess (2321) on its end face away from the inner baffle (230). The positioning ring (130) has a number of protruding hemispherical positioning protrusions (131) arranged in a ring array with the positioning ring (130) axis as the center on its end face near the stator core (110). The positioning protrusions (131) extend into the positioning recess (2321).

6. The stator coil rapid mounting structure according to claim 2, characterized in that: The end ring (120) has a plurality of through holes (122) that axially penetrate the end ring (120). The number of through holes (122) is equal to the number of screws (140), and the screws (140) pass through the through holes (122).

7. The stator coil quick-mounting structure according to claim 2, characterized in that: The positioning ring (130) has a plurality of sleeve holes (132) through which the positioning ring (130) passes. The number of sleeve holes (132) is equal to the number of screws (140). The screws (140) pass through the sleeve holes (132). When the nut on the screw (140) is tightened, it abuts against the positioning ring (130).

8. The stator coil quick-mounting structure according to claim 1, characterized in that: The outer baffle (220) and the inner baffle (230) have larger outer contour dimensions than the cross-sectional dimensions of the winding post (210). A winding groove (240) is formed at the periphery of the winding post (210) between the outer baffle (220) and the inner baffle (230), and the coil is wound in the winding groove (240).

Images