Phase connecting piece assembly structure of multi-phase motor
By using the bent open annular connecting sheet assembly and copper hook wiring structure in the multi-phase motor, the problems of large space, high cost and poor accuracy in the prior art are solved, and the space is small , low cost and high accuracy of the connecting piece assembly structure ensures the stability and high accuracy of the connection.
Patent Information
- Application Number
- CN202323296329.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-05
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-05
AI Technical Summary
The phase connecting plate components of existing multi-phase motors occupy a large space, are costly and have insufficient accuracy. Especially in high-current motors, the large number of winding branches leads to complex processes, poor dimensional accuracy, and the risk of loosening.
The open annular connecting sheet assembly is formed by cutting sheet material into the main body of the connecting sheet, and then bending it, and the copper hook is designed to complete the wiring, save materials, reduce costs, and form an integral structure through axial arrangement and plastic wrap, improving installation stability .
It realizes a connecting piece component structure with small space, low cost and high accuracy, ensuring the stability and high accuracy of the connection, and reducing material waste and production costs.
Smart Images
Figure CN222234537U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a phase connecting piece component structure of a multi-phase motor. Background Art
[0002] Motors are widely used in various industries. Motors generally include a stator assembly and a rotor assembly. Usually, the stator assembly of a motor includes a stator core and a stator winding wound on the stator core. The stator core includes an annular yoke, a plurality of teeth extending inward from the yoke and spaced circumferentially, each tooth is wound with a stator winding, and an insulating component is lined between the stator core and the stator winding to electrically insulate each other. The stator coil needs to be connected to a connector and connected to a multi-phase power supply (generally connected to a PCBA) through the phase terminals of the connector. The phase terminals of the connector are relatively scattered, the PCBA layout cost is high, and the connector and the stator are fixed by interference fit, which is easy to deform and there is a risk of loosening during use.
[0003] Therefore, a phase connecting plate is needed, and then the stator winding is connected by winding. For high-current motors, the number of winding branches is large. Considering the welding process between the winding's lacquered wire and the phase connecting plate, the winding process and the requirements of the installation space, the form of the phase connecting plate is more complicated, resulting in a complex structure of the phase connecting plate, poor dimensional accuracy and high cost. Summary of the invention
[0004] The utility model provides a phase connecting plate component structure of a multi-phase motor with small occupation of space, low cost, high precision and stable and reliable connection, and solves the technical problems existing in the prior art of large occupation of space, high cost and insufficient precision of the phase connecting plate component.
[0005] The above technical problems of the utility model are solved by the following technical solutions: a phase connecting piece assembly structure of a multi-phase motor, including a plurality of axially arranged connecting piece assemblies, the connecting piece assembly includes a plurality of connecting piece bodies, copper hooks are arranged between adjacent connecting piece bodies, each connecting piece assembly is provided with a phase terminal, the connecting piece assembly is formed by punching a sheet material into a connecting piece body and then bending it, and the connecting piece assembly is an open ring. The connecting piece assembly is a sheet structure, and the axially arranged connecting piece assembly has a small axial volume and occupies a small space. A copper hook is designed on the connecting piece assembly, and wiring is completed by the copper hook. Therefore, the connecting piece assembly can be designed to be open, saving materials and reducing costs. The connecting piece assembly is cut from a long strip of plate, and then bent to form a connecting piece body and a copper hook, with less waste material cut off, saving costs, replacing the original connecting piece assembly center integral cutting, which wastes a lot of materials and is costly.
[0006] Preferably, the connecting piece body is in the shape of concentric arcs or straight lines. The arc-shaped connecting piece bodies or straight-line connecting piece bodies are axially overlapped to form an annular connecting piece assembly, and the blank space in the center of the connecting piece assembly can be used for the rotor to pass through.
[0007] Preferably, the size of the opening of the connecting piece assembly is the size of a connecting piece body, thereby saving materials and reducing costs.
[0008] Preferably, the phase terminals are located at the open ends of the connecting piece assemblies, so as to facilitate staggered arrangement of the connecting piece assemblies in the axial direction.
[0009] Preferably, there are three connecting plate assemblies, and the openings of the three connecting plate assemblies are staggered in the axial direction.
[0010] Preferably, the connecting piece assembly is axially installed and then coated with plastic to form an integral assembly structure, and the connecting piece structure formed after the coating is integrally installed in the stator.
[0011] Therefore, the phase connecting plate assembly structure of a multi-phase motor of the utility model has the following advantages: the sheet-shaped connecting plate assembly structure allows the overall structure to occupy less space in the axial direction; the connecting plate assembly is cut by sheet material and then bent into a ring-shaped connecting plate assembly, so there is less waste material and low cost; the wiring of the winding is completed by copper hooks, with high precision and good stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional diagram of the phase connecting plate assembly structure of a multi-phase motor in Example 1 of the utility model.
[0013] Figure 2 yes Figure 1 A three-dimensional view of the connecting piece assembly inside.
[0014] Figure 3 yes Figure 1 Expanded view of the inner connecting plate assembly.
[0015] Figure 4 yes Figure 1 Three-dimensional image after plastic packaging.
[0016] Figure 5 It is a stereogram of embodiment 2 of the present utility model.
[0017] Figure 6 It is a three-dimensional diagram of the connecting piece assembly in Example 2 of the present utility model. DETAILED DESCRIPTION
[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.
[0019] Embodiment 1:
[0020] like Figure 1 As shown, a phase connecting plate assembly structure of a multi-phase motor includes three connecting plate assemblies 2 arranged axially and concentrically, and the connecting plate assembly 2 is in an open ring shape. The openings 5 of the three connecting plate assemblies are arranged alternately, that is, the openings 5 of each layer of the connecting plate assembly are facing different directions.
[0021] like Figure 2 As shown, the connecting piece assembly 2 includes three concentric arc-shaped connecting piece bodies 4, and a copper hook 3 is formed between two adjacent connecting piece bodies 4, and the copper hook 3 is perpendicular to the connecting piece body 4. A phase terminal 1 is formed at one end of the connecting piece assembly 2, and the phase terminal 1 is located on one side of the opening. The connecting piece assembly 2 is formed by cutting a long strip of plate, and the plate is cut into the following shapes: Figure 3 After the strip is formed into the shape shown, it is then bent into a circular shape, and the connecting piece body 4 and the copper hook 3 are kept perpendicular to each other.
[0022] like Figure 4 As shown, after the connecting piece assembly 2 is axially staggered, the three three-phase terminals are staggered, namely, the U-phase terminal 7, the V-phase terminal 8 and the W-phase terminal 9. The U-phase terminal 7, the V-phase terminal 8 and the W-phase terminal 9 are all connected to the PCBA board. Then, the assembled connecting piece assembly is integrally encapsulated 6 to form a whole.
[0023] Embodiment 2:
[0024] like Figure 5 and 6 As shown, different from Example 1, the connecting piece body 4 is straight, and the straight connecting piece body 4 forms a quadrilateral, one side of which is an open end, and the connecting piece components 2 are still staggered, so that the openings 5 of each connecting piece component 2 are staggered.
[0025] The specific embodiments described herein are merely examples of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A phase connecting piece assembly structure of a multi-phase motor, characterized in that: It comprises a plurality of axially arranged connecting piece assemblies, wherein the connecting piece assemblies comprise a plurality of connecting piece bodies, copper hooks are arranged between adjacent connecting piece bodies, and each connecting piece assembly is provided with a phase terminal. The connecting piece assemblies are formed by punching and cutting sheet materials into connecting piece bodies and then bending them, and the connecting piece assemblies are in the shape of an open ring.
2. The phase connecting piece assembly structure of a multi-phase motor according to claim 1, characterized in that: The connecting piece body is in the shape of concentric arcs or straight lines.
3. A phase connecting piece assembly structure of a multi-phase motor according to claim 1 or 2, characterized in that: The size of the opening of the connecting piece assembly is the size of a connecting piece body.
4. A phase connecting piece assembly structure of a multi-phase motor according to claim 1 or 2, characterized in that: The phase terminal is located at the open end of the connecting piece assembly.
5. A phase connecting piece assembly structure of a multi-phase motor according to claim 1 or 2, characterized in that: There are three connecting plate assemblies, and the openings of the three connecting plate assemblies are staggered in the axial direction.
6. A phase connecting piece assembly structure of a multi-phase motor according to claim 1 or 2, characterized in that: After the connecting piece assembly is axially installed, it is coated with plastic to form an integral assembly structure.