Centralized winding stator protection structure

Abstract

The utility model discloses a centralized winding stator protection structure, which comprises a shell, a plurality of assembly grooves are arranged at the upper position of the outer wall of the shell, the protection structure of this design integrally adopts PBT and is additionally provided with a 30% glass fiber material structure, has high toughness and fatigue resistance, and has better mechanical properties such as tensile strength, bending strength and the like; a lead limiting column is arranged on the upper end surface of the protection mechanism, so that the moving position of a lead sleeve of the stator can be limited, and abnormal operation caused by the fact that the lead sleeve moves within the inner diameter of the stator or touches an area of a motor shell during operation of the motor is avoided; the device has the advantages of protecting vulnerable elements in the stator, prolonging the service life, mainly aiming at protection of enameled wires, improving the operation safety of the motor, reducing the electric shock risk of testers, improving the product performance, preventing interference of an external electromagnetic field to the interior of the motor, and enabling the motor to operate more stably.

Description

Technical Field

[0001] This utility model belongs to the technical field of centralized winding stator protection structure, specifically relating to a centralized winding stator protection structure. Background Technology

[0002] A centralized winding stator protection structure is a protective structure used for motor stator windings. It is mainly designed for the characteristics of centralized windings. It typically involves wrapping, impregnating, or potting the windings with insulating materials to form a continuous and dense protective layer. This isolates the windings from the external environment, preventing moisture, dust, oil, and other contaminants from intruding and causing short circuits or corrosion. At the same time, the protective structure also enhances the mechanical strength of the windings, resists external forces such as vibration and impact, prevents coil loosening or displacement, and ensures that the windings maintain stable electrical and mechanical performance during motor operation, extending the motor's service life and improving operational reliability.

[0003] With the improvement of people's living standards and the enhancement of environmental awareness, the demand for environmentally friendly and energy-saving transportation tools has increased. New energy vehicles, with their advantages such as quietness, comfort, and good acceleration performance, are gradually being accepted and recognized by consumers. In addition, besides the automotive field, new energy motors also have broad application prospects in wind power generation, industrial automation, and other fields. The market demand is constantly expanding, which has promoted the rapid development of the new energy motor industry. Due to the reliability and stability of the technology, the stator delta connection method is more widely used in new energy vehicles. However, in most delta connection products, the enameled wire is exposed and attached to the lead frame. During the manufacturing and transportation of the product, the enameled wire is easily damaged, which leads to a decrease in the insulation performance of the product and leakage during operation. This design structure can effectively protect the enameled wire exposed on the outside of the frame and protect the internal windings from damage caused by external factors. Utility Model Content

[0004] The purpose of this utility model is to provide a centralized winding stator protection structure to address the issues raised in the background art. As people's living standards improve and environmental awareness increases, the demand for environmentally friendly and energy-saving transportation tools is growing. New energy vehicles, with their advantages of quietness, comfort, and good acceleration performance, are gradually being accepted and recognized by consumers. Furthermore, besides the automotive field, new energy motors also have broad application prospects in wind power generation, industrial automation, and other fields. The expanding market demand has driven the rapid development of the new energy motor industry. Due to the reliability and stability of the technology, the stator delta connection method is more widely used in new energy vehicles. However, in most delta-connected products, the enameled wire is exposed and attached to the lead frame. During the manufacturing and transportation of the product, the enameled wire is easily damaged, leading to reduced insulation performance and leakage during operation. This design structure can effectively protect the enameled wire exposed on the outside of the frame and also protect the internal windings from damage caused by external factors.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a centralized winding stator protection structure, including a housing, with multiple assembly slots provided on the upper part of the outer wall of the housing, and a protective structure body installed on the upper part of the housing through the assembly slots. The protective structure body has a protective structure assembly buckle fixed on the inner wall, which is engaged with the inside of the assembly slot. Multiple protective structure heat dissipation channel holes are distributed at the upper part of the protective structure body, and a lead wire limiting post is fixed at the upper part of the protective structure body.

[0006] Preferably, when the main body of the protective structure is installed with the outer shell, the multiple protective structure assembly buckles on the inner wall are engaged in the corresponding assembly slots.

[0007] Preferably, a protective structure sealing component is provided at the upper end of the main body of the protective structure.

[0008] Preferably, a motor is installed inside the housing, and the motor generates heat when it is running.

[0009] Preferably, the heat dissipation channel holes in the protective structure discharge the heat generated by the motor.

[0010] Preferably, the protective structure has multiple heat dissipation channel holes, which are evenly distributed.

[0011] Preferably, the heat dissipation channel holes in the protective structure can accelerate airflow.

[0012] Preferably, the main body of the protective structure covers the enameled wires exposed on the outside of the frame through its upper end face and outer wall.

[0013] Compared with the prior art, this utility model provides a centralized winding stator protection structure, which has the following beneficial effects:

[0014] The protective structure designed in this project is made entirely of PBT with an additional 30% glass fiber, possessing high toughness and fatigue resistance. Its tensile strength, flexural strength, and other mechanical properties are excellent. The top and outer walls of the protective structure effectively cover the exposed enameled wires on the outside of the stator frame. The buckle design of the protective structure is an insert type, embedded in the inner wall of the structure and fixed in place with the mounting slots on the stator frame, ensuring greater stability and robustness during motor operation. The protective structure has heat dissipation channel holes on its upper surface, which accelerate airflow and remove heat generated by the stator, preventing performance degradation and shortened lifespan due to overheating. This ensures the stability of the motor under high-temperature environments or high-load operation. The sealed fixing component protects the conductive parts inside the motor terminals from external environmental factors after the motor is installed in the compressor housing, preventing electrical faults such as short circuits and leakage, and extending the product's service life. The protective mechanism has lead wire limiting posts on the upper end face, which can limit the movement of the stator lead wire sleeve, preventing abnormal operation caused by the lead wire sleeve moving into the stator's inner diameter or touching the area of ​​the motor housing during motor operation. Its advantages include protecting vulnerable components inside the stator, extending service life, mainly targeting the protection of enameled wire, improving the safety of motor operation, reducing the risk of electric shock to test personnel, improving product performance, preventing external electromagnetic fields from interfering with the motor's internal structure, and making the motor operation more stable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a centralized winding stator protection structure according to the present invention.

[0016] Figure 2 This is a schematic diagram of the outer shell structure of a centralized winding stator protection structure according to the present invention.

[0017] Figure 3 This is a schematic diagram of a split structure of a centralized winding stator protection structure according to the present invention.

[0018] In the diagram: 1. Main body of the protective structure; 2. Heat dissipation channel hole of the protective structure; 3. Sealing component of the protective structure; 4. Assembly buckle of the protective structure; 5. Lead wire limiting post; 6. Outer shell; 7. Assembly groove. Detailed Implementation

[0019] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The utility model provides, for example Figure 1-3 The centralized winding stator protection structure shown includes a housing 6. Multiple assembly slots 7 are provided on the upper part of the outer wall of the housing 6. The housing 6 is equipped with a protective structure body 1 at the upper end through the assembly slots 7. The protective structure body 1 is secured to the inner wall of the protective structure assembly buckle 4, which is engaged in the inner position of the assembly slot 7. Multiple protective structure heat dissipation channel holes 2 are distributed at the upper end of the protective structure body 1. Lead wire limiting posts 5 are fixed at the upper end of the protective structure body 1.

[0023] When using the centralized winding stator protection structure, the entire structure is made of PBT material containing 30% glass fiber. Its top and outer wall can cover the enameled wire exposed on the outside of the frame. The inner wall is embedded with a buckle and is fixed in place with the mounting groove 7 on the stator frame to ensure stable and secure operation. The heat dissipation channel holes on the upper plane accelerate airflow and remove heat, ensuring the stability of the motor under high temperature or high load. The sealed fixing components can protect the internal conductive parts of the terminals from external factors such as refrigerant and antifreeze. The lead wire limiting post 5 on the upper surface restricts the movement of the stator lead wire sleeve, preventing the lead wire sleeve from shifting or touching the motor housing area, which would cause abnormal operation. This achieves protection of the enameled wire, improves the safety and stability of motor operation, and extends the service life of the product.

[0024] like Figure 1 and Figure 3 As shown, when the main body 1 of the protective structure is installed with the outer shell 6, multiple protective structure assembly buckles 4 on the inner wall are snapped into the corresponding assembly slots 7. A protective structure sealing component 3 is provided at the upper end of the main body 1 of the protective structure. A motor is installed inside the outer shell 6. The motor generates heat when it runs. The heat dissipation channel holes 2 of the protective structure dissipate the heat generated by the motor. Multiple heat dissipation channel holes 2 of the protective structure are provided and are evenly distributed. The heat dissipation channel holes 2 of the protective structure can accelerate the air flow. The main body 1 of the protective structure covers the enameled wire exposed on the outside of the skeleton through the upper end face and the outer wall.

[0025] The protective mechanism has a lead wire limiting post 5 on the upper end face, which can limit the movement of the stator lead wire sleeve. This prevents abnormal operation caused by the lead wire sleeve moving into the inner diameter of the stator or touching the area of ​​the motor housing during motor operation. Its advantages include protecting vulnerable components inside the stator, extending service life, mainly protecting enameled wire, improving the safety of motor operation, and reducing the risk of electric shock to test personnel.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centralized winding stator protection structure, characterized in that, Includes an outer shell (6), and multiple assembly slots (7) are provided on the upper part of the outer wall of the outer shell (6). The outer shell (6) is equipped with a protective structure body (1) at the upper end through the assembly slots (7). The protective structure body (1) is fitted with a protective structure assembly buckle (4) fixed at the inner wall position and is engaged in the inner position of the assembly slot (7). Multiple protective structure heat dissipation channel holes (2) are distributed at the upper end of the protective structure body (1). A lead wire limiting post (5) is fixed at the upper end of the protective structure body (1).

2. The centralized winding stator protection structure according to claim 1, characterized in that: When the main body (1) of the protective structure is installed with the outer shell (6), the multiple protective structure assembly buckles (4) on the inner wall are snapped into the corresponding assembly slots (7).

3. The centralized winding stator protection structure according to claim 1, characterized in that: A protective structure sealing component (3) is provided at the upper end of the main body of the protective structure (1).

4. The centralized winding stator protection structure according to claim 1, characterized in that: A motor is installed inside the outer casing (6), and the motor generates heat when it is running.

5. A centralized winding stator protection structure according to claim 4, characterized in that: The heat dissipation channel holes (2) of the protective structure discharge the heat generated by the motor.

6. The centralized winding stator protection structure according to claim 1, characterized in that: The protective structure has multiple heat dissipation channel holes (2), which are evenly distributed.

7. A centralized winding stator protection structure according to claim 6, characterized in that: The heat dissipation channel holes (2) of the protective structure can accelerate airflow.

8. A centralized winding stator protection structure according to claim 1, characterized in that: The main body of the protective structure (1) covers the enameled wires exposed on the outside of the skeleton through the upper end face and the outer wall.

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