Stator assembly structure
By introducing barrier steps and protective components into the stator assembly, the problems of insulation failure and short circuit during the enameled wire winding process are solved, and safety and efficiency are improved.
Patent Information
- Application Number
- CN202422358910.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-26
AI Technical Summary
The traditional stator assembly structure can easily lead to insulating failure of enameled wire and short-circuiting of wire heads during winding, affecting the safety and efficiency of the motor.
A structure including a stator shell, enameled wire, connection terminal, barrier step and wire cutting slot is designed. The enameled wire end head is positioned through the barrier step, the wire head is blocked with protective components, and the enameled wire is cut at the wire cutting slot to prevent the wire head from contacting and short circuiting with the iron core, and at the same time, the superposition distribution of the enameled wire is optimized to achieve uniform current.
It improves the safety of the stator assembly and motor efficiency, prevents short-circuiting of the wire head, reduces resistance loss, and enhances the control accuracy and stability of the motor.
Smart Images
Figure CN223141650U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stator structures, in particular to a stator assembly structure. Background Art
[0002] In the development process of motor technology, as the core component of the motor, the structural design of the stator assembly has a crucial impact on the performance, efficiency and reliability of the motor. With the rapid development of fields such as industrial automation, intelligent manufacturing and new energy vehicles, the requirements for motor performance are increasing day by day. The traditional stator assembly structure is difficult to meet the needs of these fields for high efficiency, compactness and reliability. Therefore, the research and development of a new type of stator assembly structure is particularly important.
[0003] Currently, in the existing stator assembly, the following defects are likely to occur during automation production:
[0004] (1) The structure requires wire passing. When the wire passes through the terminal, the resistance welding is likely to damage the enameled wire, resulting in the insulation failure of the enameled wire. Usually, a wire blocking step is added to separate the wire passing from the terminal, but the wire blocking step of the stator assembly with integrated plastic coating will increase the side core pulling of the mold and increase the mold cost;
[0005] (2) The structure usually has two wire inlets and wire outlets. After the winding is completed, there are usually very long wire ends that need to be processed. The unremoved wire ends are likely to touch the iron core, resulting in a short circuit and causing the motor to burn out and fail. Summary of the Utility Model
[0006] In order to solve the above technical problems, the utility model provides a stator assembly structure that can prevent the wire end after cutting the enameled wire from contacting the iron core below to cause a short circuit and improve the use safety.
[0007] A stator assembly structure of the present utility model includes a stator housing and enameled wires, and the enameled wires are wound around the outer side wall of the stator housing; it further includes a protection component, four groups of connection terminals, a wire-blocking step and a wire-cutting groove opening. The four groups of connection terminals are respectively installed on the outer side wall of the stator housing. The wire-blocking step is arranged on the outer side wall of the stator housing. The wire-cutting groove opening is arranged on the stator housing, and the position of the wire-cutting groove opening corresponds to that of the wire-blocking step up and down. The protection component is arranged on the outer side wall of the stator housing, and the protection component is used to protect the end position of the enameled wire; the enameled wires are wound around the outer side wall of the stator housing, and the ends of the enameled wires pass under the wire-blocking step along the surface of the stator housing. By setting the wire-blocking step, the positioning effect of the end position of the enameled wire is improved, and at the same time, it is convenient to shield and protect the end position of the enameled wire. After the enameled wires are wound, the enameled wires are cut through the wire-cutting groove opening. By arranging the protection component under the wire-cutting groove opening, it is prevented that the cut wire head of the enameled wire contacts the lower iron core to cause a short circuit. And when the wire head of the enameled wire is not cut, it can still be ensured that the led-out wire head will not contact the iron core to cause a short circuit, improving the use safety of the stator assembly.
[0008] Preferably, the protection component includes a short-circuit prevention step, and the short-circuit prevention step is arranged on the outer side wall of the stator housing and is arranged at the lower side of the wire-cutting groove opening; by setting the short-circuit prevention step, the protection and shielding effect on the end of the enameled wire is improved.
[0009] Preferably, the enameled wires pass through the stator housing in upper and lower sides, and it is ensured that the superposition of the enameled wires passing through does not exceed two at most; by making the upper layer of the enameled wires on the stator housing have two superimposed wires and the lower layer of the enameled wires on the stator housing have two superimposed wires, the distribution of the current in the enameled wires is relatively uniform, which helps to reduce the heat and resistance loss generated by the current concentration, thereby improving the efficiency of the motor.
[0010] Preferably, among the four groups of connection terminals, two of the connection terminals are the head and tail end wire heads, and the other two connection terminals are the other two-phase leads; improving the circuit simplification effect, improving the control accuracy and stability, and enhancing the motor performance.
[0011] Preferably, it further includes a grounding terminal, and the grounding terminal is arranged on the stator housing; by setting the grounding terminal, the leakage protection safety of the stator assembly is improved.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows: The enameled wire is wound around the outer side wall of the stator housing, and the end of the enameled wire passes along the surface of the stator housing under the wire blocking step. By setting the wire blocking step, the positioning effect of the end position of the enameled wire is improved, and at the same time, it is convenient to shield and protect the end position of the enameled wire. After the enameled wire winding is completed, the enameled wire is cut through the cutting groove opening. By arranging a protection component below the cutting groove opening, it is possible to prevent the cut wire end of the enameled wire from contacting the iron core below and causing a short circuit. And when the wire end of the enameled wire is not cut off by mistake, it can still ensure that the lead-out wire end will not contact the iron core and cause a short circuit, improving the use safety of the stator assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is an isometric structural view of the present utility model;
[0014] Figure 2 is an isometric structural view of the connection between the stator housing and the grounding terminal, etc.;
[0015] Figure 3 is an isometric partial structural view of the connection between the stator housing and the short-circuit prevention step, etc.;
[0016] Figure 4 is an isometric structural view of the connection between the stator housing and the grounding terminal, etc.
[0017] Reference numerals in the drawings: 1, stator housing; 2, enameled wire; 3, connection terminal; 4, wire blocking step; 5, cutting groove opening; 6, short-circuit prevention step; 7, grounding terminal. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive.
[0019] Embodiment 1
[0020] As Figures 1 to 4 shown, a stator assembly structure of the present utility model includes a stator housing 1 and an enameled wire 2, and the enameled wire 2 is wound around the outer side wall of the stator housing 1; it further includes a protection component, four groups of connection terminals 3, a wire blocking step 4, and a cutting groove opening 5. The four groups of connection terminals 3 are respectively installed on the outer side wall of the stator housing 1, the wire blocking step 4 is arranged on the outer side wall of the stator housing 1, the cutting groove opening 5 is arranged on the stator housing 1, and the cutting groove opening 5 and the wire blocking step 4 are vertically corresponding in position. The protection component is arranged on the outer side wall of the stator housing 1, and the protection component is used to protect the end position of the enameled wire 2;
[0021] As Figure 2As shown, the protection component includes a short - circuit prevention step 6, which is arranged on the outer side wall of the stator housing 1 and is located below the side of the wire - cutting groove opening 5;
[0022] In this embodiment, the enameled wire 2 is wound around the outer side wall of the stator housing 1. The end of the enameled wire 2 passes under the wire - blocking step 4 along the surface of the stator housing 1. By setting the wire - blocking step 4, the positioning effect of the end position of the enameled wire 2 is improved, and at the same time, it is convenient to shield and protect the end position of the enameled wire 2. After the winding of the enameled wire 2 is completed, the enameled wire 2 is cut through the wire - cutting groove opening 5. By arranging the protection component below the wire - cutting groove opening 5, it is possible to prevent the cut end of the enameled wire 2 from contacting the iron core below and causing a short - circuit. And when the end of the enameled wire 2 is not cut, it can still ensure that the lead - out end will not contact the iron core and cause a short - circuit, improving the use safety of the stator assembly.
[0023] Embodiment 2
[0024] On the basis of Embodiment 1, as Figure 4 shown, in a stator assembly structure of the present utility model, the enameled wire 2 passes through the stator housing 1 in upper and lower sides, and it is ensured that the maximum superposition of the passing enameled wire 2 does not exceed two;
[0025] As Figure 1 shown, among the four groups of connection terminals 3, two of the connection terminals 3 are the head and tail end wires, and the other two connection terminals 3 are the leads of the other two phases;
[0026] As Figure 2 shown, it further includes a grounding terminal 7, and the grounding terminal 7 is arranged on the stator housing 1;
[0027] In this embodiment, by setting the short - circuit prevention step 6, the protection and shielding effect on the end of the enameled wire 2 is improved. By making two enameled wires 2 overlap in the upper layer of the stator housing 1 and two enameled wires 2 overlap in the lower layer of the stator housing 1, the distribution of the current in the enameled wire 2 is relatively uniform, which helps to reduce the heat and resistance loss generated due to current concentration, thereby improving the efficiency of the motor.
[0028] In a stator assembly structure of the present utility model, during operation, the enameled wire 2 is wound around the outer side wall of the stator housing 1. The end of the enameled wire 2 passes under the wire - blocking step 4 along the surface of the stator housing 1. After the winding of the enameled wire 2 is completed, the enameled wire 2 is cut through the wire - cutting groove opening 5.
[0029] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present utility model, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.
Claims
1. A stator assembly structure, comprising a stator housing (1) and an enameled wire (2), the enameled wire (2) being wound around the outer sidewall of the stator housing (1); characterized in that, It further includes a protection component, four groups of connection terminals (3), a wire-blocking step (4) and a wire-shearing groove opening (5). The four groups of connection terminals (3) are respectively installed on the outer side wall of the stator housing (1). The wire-blocking step (4) is arranged on the outer side wall of the stator housing (1). The wire-shearing groove opening (5) is arranged on the stator housing (1), and the position of the wire-shearing groove opening (5) corresponds to that of the wire-blocking step (4) up and down. The protection component is arranged on the outer side wall of the stator housing (1) and is used to protect the end position of the enameled wire (2).
2. The stator assembly structure according to claim 1, wherein, The protection component includes a short-circuit prevention step (6). The short-circuit prevention step (6) is arranged on the outer side wall of the stator housing (1) and is arranged at the lower side of the wire-shearing groove opening (5).
3. A stator assembly structure as described in claim 1, characterized in that, The enameled wire (2) passes through the stator housing (1) in upper and lower sides, and it is ensured that the superposition of the enameled wire (2) passing through the wire does not exceed two at most.
4. A stator assembly structure according to claim 1, characterized in that, Among the four groups of connection terminals (3), two of the connection terminals (3) are the head and tail ends of the wire, and the other two connection terminals (3) are the leads of the other two phases.
5. A stator assembly structure according to claim 1, characterized in that, It further includes a grounding terminal (7). The grounding terminal (7) is arranged on the stator housing (1).