Stator core structure

Abstract

The utility model discloses a stator iron core structure, which comprises a plurality of iron core sheets which are sequentially stacked from top to bottom, each iron core sheet comprises an annular ring body part, six T-shaped wrapping posts are integrally and outwardly arranged on the peripheral side wall of the ring body part in a protruding manner, and the six T-shaped wrapping posts are sequentially and uniformly arranged at intervals along the circumferential direction; a positioning groove is formed in the inner circumferential side wall of the ring body part, the T-shaped wrapping post comprises a main body part and an arc-shaped plate part, one end of the main body part is integrally connected to the outer circumferential side wall of the ring body part, the arc-shaped plate part is integrally connected to the end, away from the ring body part, of the main body part, and the arc-shaped plate part extends in the circumferential direction and is concavely arranged outwards; the two ends, in the circumferential direction, of the arc-shaped plate part extend out of the two ends of the main body part correspondingly, and first R angles are arranged at the two ends, in the circumferential direction, of the inner side face of the arc-shaped plate part correspondingly. A riveting convex part is downwards and convexly arranged on the lower surface of the main body part, and a riveting concave part corresponding to the riveting convex part is concavely arranged on the upper surface of the main body part; the purpose of preventing burrs and burrs can be achieved, and winding can be prevented from being cut off.

Description

Technical Field

[0001] The utility model relates to the field of motor stator technology, in particular to a stator core structure. Background Art

[0002] The current traditional motor stator structure simply includes a stator yoke and a winding column. Under the same conditions, the stability of the traditional stator punching winding group is not good enough and there is a problem of high heat generation. To this end, some stator punching sheets with strong stability and the ability to reduce heat generation efficiency have emerged one after another. For example, China's announcement number CN208094298U discloses a new type of stator punching sheet for a motor, including a stator yoke, the outer ring of the stator yoke extends outward along the circumferential direction with several T-shaped winding posts, a hollow circular hole is provided in the middle of the stator yoke, and four T-shaped winding posts are provided, the outer walls of which are arc-shaped and form an outer circle, the inner wall of the column head of the T-shaped winding post and inner grooves are provided on both sides of the column body, and semicircular grooves are provided at intervals on the inner wall of the hollow circular hole. Although the winding function can be enhanced by the inner groove, thereby enhancing stability and reducing heat generation appropriately, the two ends of the column head of the T-shaped winding post are sharp corners on the side facing the inner groove, which makes it easy to have burrs and burrs, making it difficult to achieve the purpose of preventing burrs and burrs, and the winding may be cut during winding.

[0003] Therefore, it is necessary to develop a new technology to solve the above problems. Utility Model Content

[0004] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a stator core structure that can prevent burrs and burrs, and can prevent the winding from being cut.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A stator core structure, comprising a plurality of core sheets stacked in sequence, each core sheet having a circular hole in the middle; each core sheet comprises an annular ring body portion, the outer peripheral side wall of the ring body portion is provided with six T-shaped winding posts protruding outwardly, and the six T-shaped winding posts are arranged in sequence with uniform spacing along the circumferential direction; the circular hole is formed in the middle of the ring body portion; the inner peripheral side wall of the ring body portion is provided with a positioning groove, the positioning groove extends in the axial direction and passes through the upper and lower ends of the ring body portion; the T-shaped winding post comprises a main body The main body comprises a main body portion and an arc-shaped plate portion, one end of the main body portion is integrally connected to the outer peripheral side wall of the ring body portion, the arc-shaped plate portion is integrally connected to one end of the main body portion away from the ring body portion, the arc-shaped plate portion extends in the circumferential direction and is concave outward, the two ends of the arc-shaped plate portion in the circumferential direction respectively extend out of the two ends of the main body portion, and the inner side surface of the arc-shaped plate portion is provided with a first R angle at both ends in the circumferential direction; a riveted convex portion is convexly provided on the lower surface of the main body portion, and a riveted concave portion is concavely provided on the upper surface of the main body portion corresponding to the riveted convex portion.

[0007] As a preferred solution, the positioning grooves include semicircular grooves and square grooves, and the semicircular grooves and square grooves are arranged at intervals along the circumferential direction.

[0008] As a preferred solution, one semicircular groove and one square groove are provided.

[0009] As a preferred solution, the riveted protrusion and the riveted concave portion both extend to a side of the arc-shaped plate portion close to the main body portion.

[0010] As a preferred solution, the outer peripheral side wall of the ring body is provided with two semicircular grooves, which extend in the axial direction and pass through the upper and lower ends of the ring body.

[0011] As a preferred solution, the upper and lower surfaces of the main body are respectively flush with the upper and lower surfaces of the ring body, and a second R angle is provided at the connection between the main body and the outer peripheral side wall of the ring body.

[0012] As a preferred solution, the upper and lower surfaces of the main body are respectively flush with the upper and lower surfaces of the arc-shaped plate, and a third R angle is provided at the connection between the main body and the arc-shaped plate.

[0013] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical scheme that it is mainly achieved by providing a first R angle at both ends of the inner side surface of the arc-shaped plate portion of the T-shaped winding column in the circumferential direction. In this way, the first R angle can achieve the purpose of preventing burrs and burrs on the T-shaped winding column, and can prevent the winding from being cut. Secondly, a riveted protrusion is provided on the lower surface of the main body, and a riveted concave portion is provided on the upper surface of the main body corresponding to the riveted protrusion. In this way, the riveted connection between two adjacent iron core sheets can be achieved through the combined design of the riveted protrusion and the riveted concave portion. In addition, a positioning groove is provided on the inner circumferential side wall of the ring body, which can facilitate the subsequent assembly and positioning of other components, and the positioning groove is specifically provided with a semicircular groove and a square groove, so that it can facilitate the assembly and positioning of components of different shapes.

[0014] In order to more clearly illustrate the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a top view of an embodiment of the present utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of an embodiment of the present utility model.

[0017] Description of the accompanying drawings:

[0018] 10. Iron core 11. Round hole

[0019] 12. Ring body 121. Positioning groove

[0020] 122, groove 13, T-shaped winding column

[0021] 131, main body 132, curved plate

[0022] 133, first R angle 134, riveting convex part

[0023] 135, riveting concave portion 136, second R angle

[0024] 137. The third R angle. DETAILED DESCRIPTION

[0025] Please refer to Figures 1 to 2 As shown, it shows the specific structure of an embodiment of the present utility model.

[0026] A stator core structure includes a plurality of core sheets 10 stacked in sequence, each core sheet 10 having a circular hole 11 in the middle; each core sheet 10 includes an annular ring body 12, the outer peripheral side wall of the ring body 12 is provided with six T-shaped winding posts 13 protruding outward, and the six T-shaped winding posts 13 are arranged in sequence and at uniform intervals along the circumferential direction; the circular hole 11 is formed in the middle of the ring body 12; the inner peripheral side wall of the ring body 12 is provided with a positioning groove 121, the positioning groove 121 extends in the axial direction and passes through the upper and lower ends of the ring body 12; the positioning groove 121 includes a semicircular groove and a square groove, and the semicircular groove and the square groove are arranged at intervals along the circumferential direction. Each of the semicircular groove and the square groove is provided with one, so that the provision of the positioning groove 121 can facilitate the subsequent assembly and positioning of other components, and the positioning groove 121 is specifically provided with a semicircular groove and a square groove, so that it can facilitate the assembly and positioning of components of different shapes. In addition, in this embodiment, the outer peripheral side wall of the ring body 12 is provided with two semicircular grooves 122, which extend in the axial direction and pass through the upper and lower ends of the ring body 12, so that the subsequent assembly and positioning of other components can be facilitated through the grooves 122.

[0027] The T-shaped winding column 13 includes a main body 131 and an arc-shaped plate 132. One end of the main body 131 is integrally connected to the outer peripheral side wall of the ring body 12. The arc-shaped plate 132 is integrally connected to the end of the main body 131 away from the ring body 12. The arc-shaped plate 132 extends in the circumferential direction and is concave outward. The two ends of the arc-shaped plate 132 in the circumferential direction extend out of the two ends of the main body 131 respectively. The inner side surface of the arc-shaped plate 132 is provided with a first R angle 133 at both ends in the circumferential direction. The upper and lower surfaces of the main body 131 are respectively connected to the ring body. The upper and lower surfaces of the main body 131 are flush with each other, and a second R angle 136 is provided at the connection between the main body 131 and the outer peripheral side wall of the ring body 12; the upper and lower surfaces of the main body 131 are respectively flush with the upper and lower surfaces of the arc-shaped plate portion 132, and a third R angle 137 is provided at the connection between the main body 131 and the arc-shaped plate portion 132; in this way, the combination design of the first R angle 133, the second R angle 136 and the third R angle 137 can achieve the purpose of preventing burrs and burrs on the T-shaped winding column 13, and the purpose of preventing the wire from hanging and cutting the winding can be achieved through the R angle.

[0028] In addition, in this embodiment, a riveted protrusion 134 is protruding downward from the lower surface of the main body 131, and a riveted recess 135 is recessed on the upper surface of the main body 131 corresponding to the riveted protrusion 134. The riveted protrusion 134 and the riveted recess 135 both extend to the side of the arc-shaped plate 132 close to the main body 131. In this way, the combined design of the riveted protrusion 134 and the riveted recess 135 can realize the riveted connection between two adjacent iron core sheets 10.

[0029] In addition, in this embodiment, Figure 2 As shown, the diameter of the circular holes 11 of the six iron core sheets 10 on the upper layer is larger than the diameter of the circular holes 11 of the iron core sheets 10 on the lower layer, so as to form a step on the seventh iron core sheet 10 from the top to the bottom, so as to facilitate the subsequent assembly and positioning of other components.

[0030] To sum up, the design focus of the present invention is that it is mainly achieved by providing a first R angle at both ends of the inner side surface of the arc-shaped plate portion of the T-shaped winding column in the circumferential direction. In this way, the first R angle can achieve the purpose of preventing burrs and burrs on the T-shaped winding column, and can prevent the winding from being cut. Secondly, a riveted protrusion is provided on the lower surface of the main body, and a riveted concave portion is provided on the upper surface of the main body corresponding to the riveted protrusion. In this way, the riveted connection between two adjacent iron core sheets can be achieved through the combined design of the riveted protrusion and the riveted concave portion, and a positioning groove is provided on the inner circumferential side wall of the ring body, which can facilitate the subsequent assembly and positioning of other components, and the positioning groove is specifically provided with a semicircular groove and a square groove, so that it can facilitate the assembly and positioning of components of different shapes.

[0031] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stator core structure comprising a plurality of core sheets stacked one above the other, each core sheet having a circular hole in the middle; characterized in that: Each iron core sheet includes an annular ring body portion, and the outer peripheral side wall of the ring body portion is integrally provided with six T-shaped winding posts protruding outward, and the six T-shaped winding posts are arranged in sequence with uniform intervals along the circumferential direction; the circular hole is formed in the middle of the ring body portion; the inner peripheral side wall of the ring body portion is provided with a positioning groove, and the positioning groove extends along the axial direction and passes through the upper and lower ends of the ring body portion; the T-shaped winding post includes a main body portion and an arc plate portion, one end of the main body portion is integrally connected to the outer peripheral side wall of the ring body portion, the arc plate portion is integrally connected to the end of the main body portion away from the ring body portion, the arc plate portion extends along the circumferential direction and is concave outward, and the two ends of the arc plate portion in the circumferential direction respectively extend out of the two ends of the main body portion, and the inner side surface of the arc plate portion is provided with a first R angle at both ends in the circumferential direction; the lower surface of the main body portion is downwardly protruded with a rivet pressing protrusion, and a rivet pressing concave is concavely provided on the upper surface of the main body portion corresponding to the riveted pressing protrusion.

2. The stator core structure according to claim 1, characterized in that: The positioning grooves include semicircular grooves and square grooves, and the semicircular grooves and square grooves are arranged at intervals along the circumferential direction.

3. The stator core structure according to claim 2, characterized in that: There is one semicircular groove and one square groove.

4. The stator core structure according to claim 1, characterized in that: The riveting protrusion and the riveting concave portion both extend to one side of the arc-shaped plate portion close to the main body portion.

5. The stator core structure according to claim 1, characterized in that: Two semicircular grooves are formed on the outer peripheral side wall of the ring body. The grooves extend in the axial direction and pass through the upper and lower ends of the ring body.

6. The stator core structure according to claim 1, characterized in that: The upper and lower surfaces of the main body are respectively flush with the upper and lower surfaces of the ring body, and a second R angle is provided at the connection between the main body and the outer peripheral side wall of the ring body.

7. The stator core structure according to claim 1, characterized in that: The upper and lower surfaces of the main body are respectively flush with the upper and lower surfaces of the arc-shaped plate, and a third R angle is provided at the connection between the main body and the arc-shaped plate.

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