Multi-stage motor stator combination structure
By setting limit blocks and positioning blocks on the silicon steel sheet body, the motor stator core can be stacked quickly and accurately, which solves the problem of inaccurate steel sheet stacking in the prior art and improves work efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2026-04-03
AI Technical Summary
In the current process of laminating stator cores for motors, the steel laminations are not stacked accurately, resulting in low work efficiency.
A multi-stage motor stator assembly structure is adopted. By setting limit blocks and positioning blocks in arc grooves on the edge of the silicon steel sheet body, the silicon steel sheets can be quickly positioned and stably stacked. Stability is enhanced by welding connecting strips.
It improves stator assembly efficiency, ensures accurate splicing of steel sheets, reduces manual adjustment time, enhances the stability and connection strength of stator stacking, and avoids welding damage.
Smart Images
Figure CN224083271U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor stators, and more particularly to a multi-stage motor stator assembly structure. Background Technology
[0002] The stator is an important component of motors such as generators and starters. It is a crucial part of the electric motor. The stator consists of three parts: the stator core, the stator windings, and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force within this rotating magnetic field, thereby generating (output) current.
[0003] Existing motor stator cores are usually made by punching silicon steel sheets out using a regular punch press and then stacking them manually. Because the stator core is flat on both sides, it is impossible to accurately stack the steel sheets together manually, which requires a lot of time to adjust later, reducing work efficiency. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of the cumbersome stator lamination process in existing technologies by proposing a multi-stage stator assembly structure.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0006] A multi-stage motor stator assembly structure includes a circular silicon steel sheet body. Four arc-shaped grooves are evenly distributed along the edge of the silicon steel sheet body, symmetrically distributed on its circumference. Limiting blocks are provided in two opposite arc-shaped grooves, both of which are concave. Positioning blocks are provided in the other two opposite arc-shaped grooves. The two positioning blocks are configured to engage with the limiting blocks on the opposite silicon steel sheet body, thereby achieving rapid positioning of the two fitted silicon steel sheet bodies.
[0007] Preferably, the upper surface of the positioning block has inclined surfaces on both sides, and the height of the positioning block is the same as the thickness of the two silicon steel sheets.
[0008] Preferably, a slot is provided in the middle of the side of the positioning block away from the silicon steel sheet body, and a connecting strip is inserted into the slot.
[0009] Preferably, the silicon steel sheet body has multiple heat dissipation holes arranged in a circular pattern.
[0010] Preferably, the silicon steel sheet body has multiple circumferentially formed slots.
[0011] Preferably, the height of the limiting block is the same as the thickness of the silicon steel sheet body, and the two ends of the positioning block are attached to the two sides of the inner wall of the limiting block.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this utility model, when one silicon steel sheet body is placed on another silicon steel sheet body, the upper limiting block is fitted onto the lower positioning block, and the two silicon steel sheet bodies are accurately spliced together. Then, silicon steel sheet bodies are placed in sequence to improve the stator assembly efficiency. The positioning block and the limiting block are both rectangular, with one side protruding from the circumference of the silicon steel sheet body, which facilitates the connection between the stacked stator and the motor housing.
[0014] 2. In this utility model, a connecting strip is inserted into the slot in the middle of the positioning block, and then the connecting strip is welded to the positioning block. The connecting strip not only improves the stability of the silicon steel sheet stack, but also prevents damage to the silicon steel sheet during welding. Attached Figure Description
[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0016] Figure 1 This is a schematic diagram of the stator stacking structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the silicon steel sheet body structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the inclined plane structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the connecting strip structure of this utility model.
[0020] The numbers in the diagram are: 1. Silicon steel sheet body; 11. Arc groove; 12. Limiting block; 13. Positioning block; 2. Angled surface; 3. Slot; 31. Connecting strip; 4. Heat dissipation hole; 5. Groove. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example: This example provides a multi-stage motor stator assembly structure, see [link / reference]. Figure 1-4Specifically, it includes a circular silicon steel sheet body 1, with four arc-shaped grooves 11 evenly distributed on the edge of the silicon steel sheet body 1. The four arc-shaped grooves 11 are symmetrically distributed on the circumference of the silicon steel sheet body 1. Limiting blocks 12 are provided in two opposite arc-shaped grooves 11, and both limiting blocks 12 are concave. Positioning blocks 13 are provided in the other two opposite arc-shaped grooves 11. The two positioning blocks 13 are configured to be able to be inserted into the limiting block 12 on the other opposite silicon steel sheet body 1, thereby realizing the rapid positioning of the two silicon steel sheet bodies 1 that are attached together.
[0023] Four arc-shaped grooves 11 form a cross shape. The limiting block 12 and the positioning block 13 are both located in the arc-shaped grooves 11. The limiting block 12 and the positioning block 13 are integrally stamped with the silicon steel sheet body 1. The positioning block 13 is bent during stamping. When one silicon steel sheet body 1 is placed on another silicon steel sheet body 1, the limiting block 12 of the upper silicon steel sheet body 1 is aligned with the positioning block 13 of the lower silicon steel sheet body 1, so that the positioning block 13 fits against the inner wall of the limiting block 12, so that the two silicon steel sheet bodies 1 are accurately spliced together. Then, the silicon steel sheet bodies 1 are placed in sequence to improve the stator assembly efficiency. The positioning block 13 and the limiting block 12 are both rectangular, with one side protruding from the circumference of the silicon steel sheet body 1, which facilitates the connection between the stacked stator and the motor housing.
[0024] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the upper surface of the positioning block 13 has inclined surfaces 2 on both sides, and the height of the positioning block 13 is the same as the thickness of the two silicon steel sheet bodies 1. When the two silicon steel sheet bodies 1 are stacked together, the positioning block 13 can surround the two silicon steel sheet bodies 1, improving the stability of the stator after stacking. When the upper silicon steel sheet body 1 is placed on the lower silicon steel sheet body 1, the limiting block 12 will quickly slide to the side of the positioning block 13 after contacting the inclined surface 2 of the positioning block 13, thus increasing the stacking speed of the workers.
[0025] In the specific implementation process, such as Figure 2 and Figure 3 As shown, a slot 3 is provided in the middle of the side of the positioning block 13 away from the silicon steel sheet body 1, and a connecting strip 31 is inserted into the slot 3. When the number of silicon steel sheet bodies 1 stacked reaches the required amount, the silicon steel sheet bodies 1 need to be welded. Traditional welding directly welds the connection points of the silicon steel sheet bodies 1, which affects the use and assembly of the stator. Now, it is only necessary to insert a connecting strip 31 into the slot 3 in the middle of the positioning block 13, and then weld the connecting strip 31 to the positioning block 13. The connecting strip 31 not only improves the stability of the stacked silicon steel sheet bodies 1, but also does not cause damage to the silicon steel sheet bodies 1 during welding.
[0026] In the specific implementation process, such as Figure 1 and Figure 2As shown, the silicon steel sheet body 1 has multiple heat dissipation holes 4 arranged in a circular pattern; the heat dissipation holes 4 are located between the slots 5. Since the stator generates heat during use, opening multiple heat dissipation holes 4 can quickly dissipate the heat.
[0027] In the specific implementation process, such as Figure 1 and Figure 2 As shown, the silicon steel sheet body 1 has multiple slots 5 circumferentially formed on it; the slots 5 are used to install coils. The two ends of the slots 5 are different sizes, and one end has an opening to facilitate the insertion of insulating paper into the slots 5.
[0028] In the specific implementation process, such as Figure 1 and Figure 4 As shown, the height of the limiting block 12 is the same as the thickness of the silicon steel sheet body 1, and the two ends of the positioning block 13 are attached to the inner walls of the limiting block 12; thus improving the stability of the silicon steel sheet body 1 after stacking.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-stage motor stator assembly structure, comprising a silicon steel sheet body (1) in a circular shape, characterized in that: four arc-shaped grooves (11) are uniformly provided on the edges of the silicon steel sheet body (1), the four arc-shaped grooves (11) are symmetrically distributed on the circumference of the silicon steel sheet body (1), a limiting block (12) is respectively arranged in the opposite two arc-shaped grooves (11), the two limiting blocks (12) are both concave, a positioning block (13) is respectively arranged in the other two opposite arc-shaped grooves (11), the two positioning blocks (13) are configured to be clamped into the limiting block (12) on the other silicon steel sheet body (1) opposite to it, so as to realize the rapid positioning of the two silicon steel sheet bodies (1) adhered together.
2. The multi-stage motor stator assembly of claim 1, wherein: The upper surface of the positioning block (13) is provided with inclined surfaces (2) on both sides, and the height of the positioning block (13) is the same as the thickness of the two silicon steel sheet bodies (1).
3. The multi-stage motor stator assembly of claim 1, wherein: A slot (3) is provided in the middle of the side of the positioning block (13) away from the silicon steel sheet body (1), and a connecting strip (31) is inserted in the slot (3).
4. The multi-stage motor stator assembly of claim 1, wherein: A plurality of heat dissipation holes (4) are provided on the silicon steel sheet body (1) in a circular manner.
5. The multi-stage motor stator assembly of claim 1, wherein: A plurality of notches (5) are provided on the silicon steel sheet body (1) in a circular manner.
6. The multi-stage motor stator assembly of claim 1, wherein: The height of the limiting block (12) is the same as the thickness of the silicon steel sheet body (1), and the two ends of the positioning block (13) are adhered to the inner walls of the limiting block (12) on both sides.