Segmented stator core

By using a segmented stator core design, the problems of high production difficulty and high cost of traditional integral stator cores are solved, thus reducing processing difficulty and cost.

CN224138773UActive Publication Date: 2026-04-17CHUZHOU SHUGUANG PRECISION IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHUZHOU SHUGUANG PRECISION IND CO LTD
Filing Date
2025-05-15
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional integral stator cores are difficult to manufacture, especially large-sized cores, resulting in high production costs.

Method used

The modular design breaks down the integral iron core into multiple smaller iron core blocks. By combining components such as baffles, fixing rings, and pressure plates, the production and processing difficulty and equipment requirements are reduced.

Benefits of technology

It reduced production costs and improved production efficiency, as well as the reliability and stability of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224138773U_ABST
    Figure CN224138773U_ABST
Patent Text Reader

Abstract

The utility model discloses a block type stator core which comprises four iron core connecting pieces, baffles are fixedly installed on the surfaces of the four iron core connecting pieces, bolts are connected to the interiors of the baffles in a threaded mode, pressing plates are sleeved on the surfaces of the bolts, fixing rings are installed on the surfaces of the four iron core connecting pieces, and the fixing rings are connected with the baffles in a threaded mode. Auxiliary plates are fixedly mounted on the surfaces of the four iron core connecting pieces, the surfaces of the auxiliary plates abut against the fixing rings, two reinforcing rods are fixedly mounted on the surfaces of the four pressing plates, the reinforcing rods are iron rods, two mounting pads are fixedly mounted on the surfaces of the four pressing plates, and the mounting pads are rubber pads. And auxiliary grooves are formed in the surfaces of the four pressing plates. According to the utility model, the block type design can be adopted, and the original integral iron core with large volume and heavy weight is split into a plurality of smaller iron core blocks, so that the production and processing difficulty is reduced, the requirements on production equipment and process are relatively reduced, and the production cost is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technology of segmented stator core structure, specifically to segmented stator core. Background Technology

[0002] The stator core is an important stationary component in an electric motor. It is usually made of stacked silicon steel sheets with an insulating layer between them to reduce eddy current losses. It provides a path for the motor's magnetic circuit, and its slots are used to house the stator windings. The stator core interacts with the rotor to achieve electromechanical energy conversion. Its performance directly affects the motor's efficiency, power factor, and operational stability.

[0003] Traditional stator cores are usually integral structures. In terms of production, integral stator cores are difficult to process, especially for larger cores. The manufacturing process requires highly sophisticated equipment and processes, which increases production costs. Therefore, there is an urgent need for modular stator cores to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a segmented stator core to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] The segmented stator core includes four core connectors. Each of the four core connectors has a baffle fixedly installed on its surface. Bolts are threaded into the baffles, and pressure plates are fitted onto the surfaces of the bolts. Fixing rings are installed on the surfaces of the four core connectors. The effect achieved by the above components is that the segmented design can break down the originally large and heavy monolithic core into multiple smaller core blocks, reducing the difficulty of production and processing, and relatively reducing the requirements for production equipment and processes, thereby reducing production costs.

[0007] Preferably, an auxiliary plate is fixedly installed on the surface of each of the four core connectors, and the surface of the auxiliary plate abuts against the fixing ring. The effect achieved by the above components is that the auxiliary ring can assist the worker in placing the fixing ring on the surface of the baffle.

[0008] Preferably, two reinforcing rods are fixedly installed on the surface of each of the four pressure plates. The reinforcing rods are iron rods. The effect achieved by the above components is that the reinforcing rods can increase the strength of the pressure plates and facilitate the pressure plates to squeeze the fixing ring.

[0009] Preferably, two mounting pads are fixedly installed on the surface of each of the four pressure plates. The mounting pads are rubber pads. The effect achieved by the above components is that the operator can move the pressure plates with the help of the mounting pads, thus achieving the effect of assisting in moving the pressure plates.

[0010] Preferably, each of the four pressure plates has an auxiliary groove on its surface. The size of the auxiliary groove is adapted to the size of the fixing ring. The effect achieved by the above components is that the auxiliary groove can assist the pressure plates in squeezing the fixing ring.

[0011] Preferably, protective sleeves are fixedly installed on the surfaces of the four pressure plates, and the inner walls of the protective sleeves are slidably connected to the bolts. The effect achieved by the above components is that the protective sleeves can assist the bolts in squeezing the pressure plates.

[0012] Preferably, two balance bars are fixedly inserted inside each of the four baffles, and two balance holes are opened on the surface of each of the four pressure plates. The size of the balance holes is adapted to the size of the balance bars. The effect achieved by the above components is that the balance bars are fitted onto the pressure plates by means of the balance holes. At this time, when the bolts are turned, the pressure plates cannot be rotated, thus achieving the effect of restricting the rotation of the pressure plates.

[0013] In the above technical solution, the segmented stator core provided by this utility model,

[0014] (1) By setting up baffles, fixing rings and pressure plates, a modular design can be adopted to break down the original large and heavy integral iron core into multiple smaller iron core blocks, which reduces the difficulty of production and processing, and relatively reduces the requirements for production equipment and processes, thereby reducing production costs.

[0015] (2) By setting up auxiliary grooves, balance bars and balance holes, the pressure plate can be used to squeeze the fixed ring, so that the pressure plate can squeeze the fixed ring stably and firmly, ensuring the reliability and stability of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the segmented stator core of this utility model.

[0018] Figure 2 This utility model Figure 1 A partial structural diagram.

[0019] Figure 3 This utility model Figure 2 Enlarged view of point A.

[0020] Figure 4 This utility model Figure 2 Enlarged view of point B.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 1. Iron core connector; 2. Fixing ring; 3. Baffle; 4. Pressure plate; 5. Auxiliary plate; 6. Reinforcing rod; 7. Auxiliary groove; 8. Mounting pad; 9. Bolt; 10. Protective sleeve; 11. Balance hole; 12. Balance bar; 22, 23, 24, 25, 26, 27. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4 As shown, the segmented stator core provided in this embodiment of the present invention includes four core connectors 1. Each of the four core connectors 1 has a baffle 3 fixedly installed on its surface. Bolts 9 are threadedly connected to the inside of the baffle 3. A pressure plate 4 is fitted on the surface of the bolts 9. Fixing rings 2 are installed on the surface of the four core connectors 1. The effect achieved by the above components is that the segmented design can be adopted to break down the original large and heavy integral core into multiple smaller core blocks, which reduces the difficulty of production and processing, and relatively reduces the requirements for production equipment and processes, thereby reducing production costs.

[0025] In this specific embodiment, auxiliary plates 5 are fixedly installed on the surfaces of the four iron core connectors 1. The surfaces of the auxiliary plates 5 abut against the fixing rings 2. The auxiliary rings can assist the workers in placing the fixing rings 2 on the surface of the baffles 3.

[0026] In this specific embodiment, two reinforcing rods 6 are fixedly installed on the surface of each of the four pressure plates 4. The reinforcing rods 6 are iron rods, which can increase the strength of the pressure plates 4 and facilitate the pressure plates 4 to squeeze the fixing ring 2.

[0027] In this specific embodiment, two mounting pads 8 are fixedly installed on the surface of each of the four pressure plates 4. The mounting pads 8 are rubber pads, and the workers can move the pressure plates 4 with the help of the mounting pads 8, thus achieving the effect of assisting in moving the pressure plates 4.

[0028] In this specific embodiment, the surfaces of the four pressure plates 4 are provided with auxiliary grooves 7. The size of the auxiliary grooves 7 is adapted to the size of the fixing ring 2. The auxiliary grooves 7 can assist the pressure plates 4 in squeezing the fixing ring 2.

[0029] In this specific embodiment, protective sleeves 10 are fixedly installed on the surfaces of the four pressure plates 4. The inner wall of the protective sleeve 10 is slidably connected to the bolt 9. The protective sleeve 10 can assist the bolt 9 in squeezing the pressure plate 4.

[0030] In this specific embodiment, two balance rods 12 are fixedly inserted inside each of the four baffles 3, and two balance holes 11 are opened on the surface of each of the four pressure plates 4. The size of the balance hole 11 is adapted to the size of the balance rod 12. The balance rod 12 is fitted onto the pressure plate 4 by means of the balance hole 11. At this time, when the bolt 9 is rotated, the pressure plate 4 cannot rotate, thus achieving the effect of restricting the rotation of the pressure plate 4.

[0031] Working principle: When assembling the iron core, first align the four iron core connectors 1 together, then place the fixing ring 2 between the baffle 3 and the auxiliary plate 5 of the four iron core connectors 1. Then, use the balance hole 11 to put the pressure plate 4 on the balance bar 12. With the help of rotating the bolt 9, the bolt 9 is inserted into the baffle 3 by the thread. The bolt 9 continues to move. While the bolt 9 is moving, the pressure plate 4 is moved by the protective sleeve 10. After the pressure plate 4 has moved a certain distance, the pressure plate 4 uses the auxiliary groove 7 to squeeze the fixing ring 2. At this time, the fixing ring 2 is fixed on the iron core connector 1, so that the four iron core connectors 1 are fixed together, thus forming a complete stator iron core.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A segmented stator core comprising four core connectors (1), characterized in that, Each of the four core connectors (1) is fixedly fitted with a baffle (3), the baffle (3) is internally threaded with a bolt (9), the bolt (9) is fitted with a pressure plate (4), and the four core connectors (1) are fitted with a fixing ring (2).

2. The segmented stator core of claim 1, wherein, Auxiliary plates (5) are fixedly installed on the surfaces of the four core connectors (1), and the surfaces of the auxiliary plates (5) abut against the fixing rings (2).

3. The segmented stator core of claim 1, wherein, Two reinforcing rods (6) are fixedly installed on the surface of each of the four pressure plates (4), and the reinforcing rods (6) are iron rods.

4. The segmented stator core of claim 1, wherein, Two mounting pads (8) are fixedly installed on the surface of each of the four pressure plates (4), and the mounting pads (8) are rubber pads.

5. The segmented stator core of claim 1, wherein, Each of the four pressure plates (4) has an auxiliary groove (7) on its surface, and the size of the auxiliary groove (7) is adapted to the size of the fixing ring (2).

6. The segmented stator core of claim 1, wherein, Protective sleeves (10) are fixedly installed on the surfaces of the four pressure plates (4), and the inner wall of the protective sleeves (10) is slidably connected to the bolts (9).

7. The segmented stator core of claim 1, wherein, Two balance bars (12) are fixedly inserted inside each of the four baffles (3), and two balance holes (11) are opened on the surface of each of the four pressure plates (4). The size of the balance holes (11) is adapted to the size of the balance bars (12).