A sealed stator protection structure

Abstract

The utility model discloses a sealed stator protection structure, including the protection shell and the skeleton of setting in the protection shell inboard position, when using this protection structure, because protection structure adopts PBT and adds 30% glass fiber material structure production, therefore has high tenacity, fatigue resistance, protection structure buckle is not equal built -in suspension buckle, because this product is the angle joint product, if adopts fixed buckle, when assembling, because buckle can not unload force, and it is easy to have the risk of buckle to scratch the enameled wire or buckle fracture, so the buckle design built -in suspension structure of protection structure avoids touching the winding coil reasonably at the same time with the through -hole of lead skeleton outer wall fixed assembly satisfies the performance requirement, the protection structure is on the upper end surface except reserving two outlet holes and the periphery heat dissipation hole, the rest are all solid plane, and the relative sealing effect is increased while radiating, through the setting of sealed stator protection structure, the sealing property, insulation protection effect of product has been promoted.

Description

Technical Field

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

[0002] Due to its reliability and stability, 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 and leakage during operation. This utility model of a sealed stator protection structure is mainly composed of a protective shell, upper end face, frame, lead body, sealing component, lead limit post, through hole, secondary fixing tenon structure, asymmetrical built-in suspended buckle, assembly hole, telescopic plate, limiting hole, limiting knob, mounting plate, stop hook, protective pad and other components. Existing sealed stator protection structures have poor sealing and insulation protection effects and unstable motor operation, which will affect the normal use of the equipment. Therefore, a sealed stator protection structure is essential. Utility Model Content

[0003] The purpose of this utility model is to provide a sealed stator protection structure to solve the problems mentioned in the background art, such as poor sealing and insulation protection effects of existing sealed stator protection structures, and unstable motor operation that affects the normal use of equipment.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sealed stator protection structure, comprising...

[0005] A protective housing and a frame disposed on the inner side of the protective housing;

[0006] The lower end of the protective shell is provided with an upper end face, and a secondary fixing tenon structure is provided at the upper end of the upper end face and at the outer side of the frame.

[0007] An assembly hole is provided at the lower outer wall of the protective shell, and an asymmetrical built-in suspended buckle is connected to the inner wall of the upper surface and located inside the assembly hole.

[0008] A through hole is provided at the lower end of the upper surface, and a sealing component is provided at the lower right side of the upper surface. The stator winding outside the skeleton is connected to the sealing component through a lead wire body.

[0009] The sealed stator protection structure not only improves the product's sealing and insulation protection, but also enhances the safety and stability of motor operation and greatly extends the product's service life.

[0010] Preferably, a mounting plate is provided at the lower end of the upper surface and at the outer side of the lead wire body, and a lead wire limiting post is installed at the lower end of the mounting plate.

[0011] Preferably, a telescopic plate is connected inside the mounting plate and at the upper end of the lead wire limiting post, and a stop hook is connected to the inner side of the lead wire limiting post.

[0012] Preferably, protective pads are glued to the inner walls of the mounting plate, lead wire limiting post, and stop hook, and the protective pads are made of rubber material.

[0013] Preferably, a limiting hole is provided on the outer wall of the mounting plate, and an internal thread is provided on the inner wall of the limiting hole.

[0014] Preferably, a limiting knob is installed inside the limiting hole and at a position on the outer side of the mounting plate, and an external thread is provided on the outer wall of the limiting knob.

[0015] Preferably, the limiting knob is connected to the internal thread of the limiting hole via the external thread on the outer wall, thereby pressing the telescopic plate with the limiting knob and thus restricting the telescopic plate. Through the combined use of the telescopic plate, mounting plate, limiting knob, limiting hole, stop hook and threaded connection, the lead wire limiting post can better restrict lead wires of different diameters, while the protective pad can protect the lead wire body.

[0016] Compared with the prior art, this utility model provides a sealed stator protection structure, which has the following beneficial effects:

[0017] In this sealed stator protection structure, the overall structure is made of PBT with an additional 30% glass fiber, resulting in high toughness and fatigue resistance. Its tensile strength, bending strength, and other mechanical properties are excellent. The top and outer wall of the protection structure effectively cover the exposed enameled wires on the outside of the frame. The protection structure uses asymmetrical, internally suspended buckles. Because this product is a corner-joint product, using fixed buckles during assembly could easily lead to the buckles rubbing against the enameled wires or breaking. Therefore, the buckles are designed as internally suspended structures to avoid contact with the winding coils while securing them to the through holes on the outer wall of the lead frame to meet performance requirements. Except for two pre-drilled wire outlet holes and peripheral heat dissipation holes, the upper surface of the protection structure is a solid plane, which dissipates heat while increasing the sealing effect. The sealed stator protection structure not only improves the product's sealing and insulation protection but also enhances the safety and stability of motor operation and significantly extends the product's service life.

[0018] In this sealed stator protection structure, when using it, the telescopic plate is first pulled out from inside the mounting plate, allowing the mounting plate, lead wire limiting post, and stop hook to restrict lead wire bodies of different diameters. Then, the limiting knob is connected to the internal thread of the limiting hole via the external thread on the outer wall, causing the limiting knob to press against the telescopic plate, thus restricting it. The protective pads installed on the inner walls of the mounting plate, lead wire limiting post, and stop hook, made of rubber, protect the lead wire body when in contact with it, preventing wear and tear caused by prolonged friction between the lead wire and the lead wire limiting post. Through the coordinated use of the telescopic plate, mounting plate, limiting knob, limiting hole, stop hook, and threaded connection, the lead wire limiting post effectively restricts lead wire bodies of different diameters, while the protective pads provide protection for the lead wire body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the sealed stator protection structure of this utility model.

[0020] Figure 2 This is a top view schematic diagram of the sealed stator protection structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the front view of the sealed stator protection structure of this utility model.

[0022] Figure 4 This is a structural schematic diagram of the sealed stator protection structure of this utility model, viewed from the front and cutaway.

[0023] Figure 5 This is an enlarged structural schematic diagram of the lead wire limiting post of the sealed stator protection structure of this utility model.

[0024] In the diagram: 1. Protective outer shell; 2. Top surface; 3. Frame; 4. Lead wire body; 5. Sealing component; 6. Lead wire limiting post; 7. Through hole; 8. Secondary fixing tenon structure; 9. Asymmetrical built-in suspended buckle; 10. Assembly hole; 11. Telescopic plate; 12. Limiting hole; 13. Limiting knob; 14. Mounting plate; 15. Stop hook; 16. Protective pad. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides, for example Figure 1-5 The sealed stator protection structure shown includes a protective shell 1 and a frame 3 located inside the protective shell 1. An upper surface 2 is installed at the lower end of the protective shell 1, and a secondary fixing tenon structure 8 is located at the upper end of the upper surface 2, outside the frame 3. An assembly hole 10 is provided at the lower outer wall of the protective shell 1, and an asymmetrical internal suspended buckle 9 is connected to the inner wall of the upper surface 2, inside the assembly hole 10. A wire passage hole 7 is provided at the lower inner part of the upper surface 2, and a sealing component 5 is located at the lower right side of the upper surface 2. The stator windings outside the frame 3 are connected to the sealing component 5 via a lead wire body 4. The sealed stator protection structure not only improves the product's sealing performance and insulation protection effect but also enhances the safety and stability of motor operation and significantly extends the product's service life.

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, to improve the sealing and insulation protection of the product, a sealed stator protection structure is used. Because the entire protection structure is made of PBT with an additional 30% glass fiber, it possesses high toughness and fatigue resistance, and its tensile strength, bending strength, and other mechanical properties are good. The top and outer wall of the protection structure can better cover the enameled wire exposed on the outside of the frame 3. The protection structure's buckles are asymmetrical, internally suspended buckles 9. Because this product is a corner-joint product, if fixed buckles were used, the buckles would easily rub against the enameled wire or break during assembly due to the inability to release force. Therefore, the buckles of the protection structure are designed as internally suspended structures to reasonably avoid contact with the winding coils while being fixedly assembled with the through holes on the outer wall of the lead frame 3 to meet performance requirements. On the upper end face 2 of the protection structure, except for two pre-reserved wire outlet holes and peripheral heat dissipation holes, the rest is a solid plane, which dissipates heat while increasing the relative sealing effect. Through the setting of the sealed stator protection structure, not only is the product's sealing and insulation protection improved, but the safety and stability of motor operation are also enhanced, and the service life of the product is greatly extended.

[0028] A mounting plate 14 is provided at the lower end of the upper end face 2 and at the outer side of the lead wire body 4. A lead wire limiting post 6 is installed at the lower end of the mounting plate 14. A telescopic plate 11 is connected inside the mounting plate 14 and at the upper end of the lead wire limiting post 6. A stop hook 15 is connected to the inner side of the lead wire limiting post 6. Protective pads 16, made of rubber, are glued to the inner walls of the mounting plate 14, the lead wire limiting post 6, and the stop hook 15. A limiting hole 12 is provided on the outer wall of the mounting plate 14. An internal thread is provided on the inner wall of the limiting hole 12. A limiting knob 13 is installed on the outer side of the mounting plate 14. The outer wall of the limiting knob 13 is provided with an external thread. The limiting knob 13 is connected to the internal thread of the limiting hole 12 through the external thread of the outer wall. This allows the limiting knob 13 to press against the telescopic plate 11, thereby restricting the telescopic plate 11. Through the combined use of the telescopic plate 11, mounting plate 14, limiting knob 13, limiting hole 12, stop hook 15 and threaded connection, the lead wire limiting post 6 can better restrict lead wire bodies 4 of different diameters. The protective pad 16 can protect the lead wire body 4.

[0029] like Figure 2 , Figure 3 and Figure 5 As shown, in order to better restrict lead wire bodies 4 of different diameters by the lead wire limiting post 6, when using the sealed stator protection structure, first pull the telescopic plate 11 out from inside the mounting plate 14, so that the mounting plate 14, lead wire limiting post 6, and stop hook 15 can restrict lead wire bodies 4 of different diameters. Then, connect the limiting knob 13 to the internal thread of the limiting hole 12 through the external thread of the outer wall, so that the limiting knob 13 squeezes the telescopic plate 11, thereby restricting the telescopic plate 11. The protective pads 16 on the inner walls of the positioning post 6 and the stop hook 15 are made of rubber material. When they come into contact with the lead wire body 4, they protect the lead wire body 4, thus preventing the lead wire body 4 from being worn out due to long-term friction with the lead wire limiting post 6. Through the combined use of the telescopic plate 11, the mounting plate 14, the limiting knob 13, the limiting hole 12, the stop hook 15 and the threaded connection, the lead wire limiting post 6 can better limit lead wire bodies 4 of different diameters, while the protective pads 16 can protect the lead wire body 4.

[0030] 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 sealed stator guard structure, characterized by: include The protective shell (1) and the frame (3) disposed inside the protective shell (1); The protective shell (1) has an upper end face (2) installed at the lower end position, and a secondary fixing tenon structure (8) is provided at the upper end of the upper end face (2) and at the outer side of the frame (3). An assembly hole (10) is provided at the lower outer wall of the protective shell (1), and an asymmetrical built-in suspended buckle (9) is connected to the inner wall of the upper end face (2) and located inside the assembly hole (10). A through hole (7) is provided at the lower inner position of the upper end face (2), and a sealing component (5) is provided at the lower right side of the upper end face (2). The stator winding outside the skeleton (3) is connected to the sealing component (5) through the lead wire body (4).

2. A sealed stator protection structure according to claim 1, characterized in that: An installation plate (14) is provided at the lower end of the upper surface (2) and at the outer side of the lead body (4), and a lead limiting post (6) is installed at the lower end of the installation plate (14).

3. A sealed stator protection arrangement according to claim 2, characterized in that: A telescopic plate (11) is connected inside the mounting plate (14) and at the upper end of the lead wire limiting post (6), and a stop hook (15) is connected to the inner side of the lead wire limiting post (6).

4. A sealed stator protection arrangement according to claim 3, characterized in that: The inner walls of the mounting plate (14), lead wire limiting post (6) and stop hook (15) are all glued with protective pads (16), which are made of rubber material.

5. A sealed stator protection arrangement according to claim 4, characterized in that: A limiting hole (12) is provided on the outer wall of the mounting plate (14), and an internal thread is provided on the inner wall of the limiting hole (12).

6. A sealed stator protection arrangement according to claim 5, characterized in that: A limiting knob (13) is installed inside the limiting hole (12) and at a position outside the mounting plate (14), and an external thread is provided on the outer wall of the limiting knob (13).

7. A sealed stator protection arrangement according to claim 6, characterized in that: The limiting knob (13) is connected to the inner thread of the limiting hole (12) through the external thread of the outer wall, so that the limiting knob (13) squeezes the telescopic plate (11) and thus the telescopic plate (11) is restricted. Through the cooperation of the telescopic plate (11), the mounting plate (14), the limiting knob (13), the limiting hole (12), the stop hook (15) and the threaded connection, the lead wire limiting post (6) can better restrict the lead wire body (4) of different diameters, while the setting of the protective pad (16) can protect the lead wire body (4).

Images