An automobile generator rotor assembly

Abstract

The utility model discloses an automobile generator rotor assembly, including front end cover and rear end cover, the connecting portion of front end cover and rear end cover is equipped with fastening ring, the inside installation of rear end cover has the positioning frame. The utility model discloses through the double filtration structure of preposition dust filter screen and postposition dust filter screen, and preposition dust filter screen intercepts small impurity, and postposition dust filter screen intercepts larger particle impurity, effectively prevents the impurity from entering the inside of assembly, reduces the wear and tear of parts, guarantees the stable operation, and the sealed cover of heat dissipation fan cooperation accelerates the air circulation of the time and avoids the impurity contact fan, improves the heat dissipation efficiency, prevents the heat accumulation from influencing assembly performance, prolongs the life, and the spring on the surface of support rod can buffer the vibration impact in the operation process, avoids the loose connection of parts, and the clamping structure of positioning sleeve and support plate and the clamping structure of fixed frame and clamping block, the dismounting replacement of dust filter screen is convenient, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive generator technology, specifically to an automotive generator rotor assembly. Background Technology

[0002] The automotive alternator is the main power source for a car, and its rotor assembly, as a core component, directly affects the alternator's efficiency and lifespan due to its operational stability. During use, external impurities can easily enter the rotor assembly, causing wear and tear on components. Vibration and impact can also loosen component connections, reducing operational stability. In particular, when a car is in a complex road condition and changing environment, dust, debris, and other impurities can easily penetrate through gaps, and high-frequency vibration can accelerate component aging and loosening, further shortening the lifespan of the rotor assembly. Utility Model Content

[0003] The purpose of this invention is to provide an automotive generator rotor assembly with the advantage of dual dust filtration.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automotive generator rotor assembly, comprising a front cover and a rear cover, wherein a fastening ring is installed at the connection between the front cover and the rear cover, a positioning frame is installed inside the rear cover, a circular plate is installed on the outer ring of the front side of the positioning frame, support rods are fixedly installed on all four sides of the front side of the circular plate, a spring is sleeved on the surface of the support rod, a support plate is installed on the front end of the spring and sleeved on the outside of the support rod, a positioning sleeve is sleeved on the outside of the front end of the support rod, a front dust filter is installed on the front side of the positioning sleeve, a rear dust filter is installed on the back side of the positioning frame, a protective cover is installed on the front side of the positioning frame, and a cooling fan is installed inside the protective cover.

[0005] As a preferred embodiment, a fixing frame is installed at the center of the back of the positioning frame, and a snap-fit ​​block is snapped into the inside of the fixing frame. The back of the snap-fit ​​block is connected to the front of the rear dust filter.

[0006] As a preferred embodiment, a sealing ring is fixedly installed on the exterior of the front end of the rear cover, and the interior of the sealing ring is wrapped around the end surface of the front dust filter.

[0007] As a preferred embodiment, a sealing cover is fixedly installed on the front of the protective cover, and the sealing cover and the protective cover can form a sealed protective structure, with the front end of the sealing cover sealingly fitted to the back of the front dust filter.

[0008] As a preferred embodiment, the surface of the support plate is provided with a groove in an annular shape, and the rear end of the positioning sleeve is engaged with the inside of the groove by a protrusion and securely installed.

[0009] As a preferred embodiment, the mesh size of the front dust filter is larger than that of the rear dust filter, and the front and rear dust filters are respectively distributed on the front and rear sides of the cooling fan.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model features a dual filtration structure consisting of a front dust filter and a rear dust filter. The front dust filter intercepts fine impurities, while the rear dust filter intercepts larger particles, effectively preventing impurities from entering the assembly, reducing component wear, and ensuring stable operation. The cooling fan, in conjunction with the sealing cover, accelerates airflow while preventing impurities from contacting the fan, improving heat dissipation efficiency, preventing heat accumulation from affecting assembly performance, and extending service life. The springs on the support rod surface can buffer vibration and impact during operation, preventing component connections from becoming loose. At the same time, the snap-fit ​​structure between the positioning sleeve and the support plate, and the snap-fit ​​structure between the fixing bracket and the snap-fit ​​block, facilitates the disassembly and replacement of the dust filter, reducing maintenance costs.

[0011] 2. This utility model adopts a snap-fit ​​connection structure between the fixing frame and the snap-fit ​​block. The snap-fit ​​block is directly connected to the front of the rear dust filter. This design can not only quickly realize the positioning and installation of the rear dust filter and ensure the stability of the connection between the filter and the positioning frame, but also greatly simplify the filter disassembly and assembly process. Replacement and maintenance can be completed without the need for complicated tools, effectively improving the efficiency of later maintenance. Attached Figure Description

[0012] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the rear end cover of this utility model; Figure 4 This utility model Figure 3 A magnified view of a portion of point A in the middle.

[0013] In the diagram: 1. Front cover; 2. Rear cover; 3. Fastening ring; 4. Positioning frame; 5. Circular plate; 6. Support rod; 7. Spring; 8. Support plate; 9. Positioning sleeve; 10. Fixing frame; 11. Snap-fit ​​block; 12. Rear dust filter; 13. Front dust filter; 14. Sealing ring; 15. Protective cover; 16. Cooling fan; 17. Sealing cover. Detailed Implementation

[0014] 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.

[0015] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0016] Please see Figure 1 As shown, this utility model provides an automotive generator rotor assembly, including a front cover 1 and a rear cover 2. A fastening ring 3 is installed at the connection between the front cover 1 and the rear cover 2. A positioning frame 4 is installed inside the rear cover 2. A circular plate 5 is installed on the outer ring of the front side of the positioning frame 4. Support rods 6 are fixedly installed on all four sides of the front side of the circular plate 5. A spring 7 is sleeved on the surface of the support rod 6. A support plate 8 is installed on the front end of the spring 7 and sleeved on the outside of the support rod 6. A positioning sleeve 9 is sleeved on the outside of the front end of the support rod 6. A front dust filter 13 is installed on the front side of the positioning sleeve 9. A rear dust filter 12 is installed on the back side of the positioning frame 4. A protective cover 15 is installed on the front side of the positioning frame 4. A cooling fan 16 is installed inside the protective cover 15.

[0017] This technical solution uses a dual filtration structure consisting of a pre-dust filter 13 and a rear dust filter 12. The pre-dust filter 13 intercepts fine impurities, while the rear dust filter 12 intercepts larger particles, effectively preventing impurities from entering the assembly, reducing component wear, and ensuring stable operation. The cooling fan 16, in conjunction with the sealing cover 17, accelerates airflow while preventing impurities from contacting the fan, improving heat dissipation efficiency, preventing heat accumulation from affecting assembly performance, and extending service life. The spring 7 on the surface of the support rod 6 can buffer vibration and impact during operation, preventing component connections from becoming loose. At the same time, the snap-fit ​​structure between the positioning sleeve 9 and the support plate 8, and the snap-fit ​​structure between the fixing bracket 10 and the snap-fit ​​block 11, facilitates the disassembly and replacement of the dust filter, reducing maintenance costs. Example

[0018] Based on Embodiment 1, this utility model is as follows: Figure 2 As shown, a fixing frame 10 is installed at the center of the back of the positioning frame 4. A snap-fit ​​block 11 is installed inside the fixing frame 10. The back of the snap-fit ​​block 11 is connected to the front of the rear dust filter 12.

[0019] Adopting such Figure 1 The technical solution shown adopts a snap-fit ​​connection structure between the fixing frame 10 and the snap-fit ​​block 11. The snap-fit ​​block 11 is directly connected to the front of the rear dust filter 12. This design can not only quickly realize the positioning and installation of the rear dust filter 12 and ensure the stability of the connection between the filter and the positioning frame 4, but also greatly simplify the filter disassembly and assembly process. Replacement and maintenance can be completed without the need for complicated tools, effectively improving the efficiency of later maintenance.

[0020] Secondly, in the technical solution, a sealing ring 14 is fixedly installed on the front end of the rear cover 2, and the inside of the sealing ring 14 is wrapped around the end surface of the front dust filter 13; a sealing cover 17 is fixedly installed on the front of the protective cover 15, and the sealing cover 17 and the protective cover 15 can form a sealed protective structure, and the front end of the sealing cover 17 is sealed and fitted to the back of the front dust filter 13.

[0021] Its adoption is as follows Figure 1 The technical solution shown has a sealing ring 14 wrapped around the end surface of the front dust filter 13. At the same time, the sealing cover 17 on the front of the protective cover 15 forms a sealed protective structure with the front end sealed to the back of the front dust filter 13. The double sealing design not only completely blocks the path of external impurities from seeping into the assembly from the gap, avoiding impurities from affecting the operation of internal components, but also enhances the sealing and stability of the overall structure, further ensuring the filtering and protective effect of the front dust filter 13. Example

[0022] This utility model is as follows Figures 1-4 As shown, the support plate 8 has a groove on its surface, and the rear end of the positioning sleeve 9 is fastened to the inside of the groove by a protrusion; the mesh of the front dust filter 13 is larger than that of the rear dust filter 12, and the front dust filter 13 and the rear dust filter 12 are respectively distributed on the front and rear sides of the cooling fan 16.

[0023] Using the above technical solution, a groove is opened in the annular shape on the surface of the support plate 8, and the rear end of the positioning sleeve 9 is fastened to the groove by a protrusion. This annular groove and protrusion engagement structure can achieve uniform force on the circumference of the positioning sleeve 9, ensuring the connection is stable, while facilitating quick disassembly and assembly of the positioning sleeve 9 and the connected front dust filter 13, improving maintenance convenience. The mesh size of the front dust filter 13 is larger than that of the rear dust filter 12, forming a gradient filtration system from coarse to fine from front to back. The dual synergistic filtration can significantly improve the impurity interception effect, prevent impurities of different particle sizes from entering and affecting the operation of the cooling fan 16 and internal components, and ensure the stability of the assembly.

[0024] The working principle of this utility model is as follows: the cooling fan 16 starts to accelerate the internal air circulation, realize the heat dissipation and cooling of the assembly, and avoid heat accumulation affecting the operating performance. During the air circulation, the front dust filter 13 and the rear dust filter 12 form a gradient filtration. The front filter first intercepts larger impurities in the air, and the rear filter then filters fine particulate impurities. The dual filtration can completely block impurities from entering the interior of the assembly and reduce component wear. At the same time, the sealing ring 14 wraps around the end of the front filter, and the sealing cover 17 on the front of the protective cover 15 seals and fits tightly with the back of the front filter. The double sealing structure further blocks the path of impurities seeping in from the gap. In addition, the spring 7 on the surface of the support rod 6 can buffer the vibration and impact during operation and prevent the components from loosening. The snap-fit ​​structure between the support plate 8 and the positioning sleeve 9, and the snap-fit ​​structure between the fixing frame 10 and the snap-fit ​​block 11, not only ensure that the filter and other components are installed firmly, but also facilitate later disassembly and maintenance. The whole system works together to achieve efficient, stable and long-term operation of the rotor assembly.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A rotor assembly for an automotive generator, comprising a front cover (1) and a rear cover (2), characterized in that: A fastening ring (3) is installed at the connection between the front end cover (1) and the rear end cover (2). A positioning frame (4) is installed inside the rear end cover (2). A circular plate (5) is installed on the outer ring of the front side of the positioning frame (4). Support rods (6) are fixedly installed on all four sides of the front side of the circular plate (5). A spring (7) is sleeved on the surface of the support rod (6). A support plate (8) is installed on the front end of the spring (7) and sleeved on the outside of the support rod (6). A positioning sleeve (9) is sleeved on the outside of the front end of the support rod (6). A front dust filter (13) is installed on the front side of the positioning sleeve (9). A rear dust filter (12) is installed on the back side of the positioning frame (4). A protective cover (15) is installed on the front side of the positioning frame (4). A cooling fan (16) is installed inside the protective cover (15).

2. The automotive generator rotor assembly according to claim 1, characterized in that: A fixing frame (10) is installed at the center of the back of the positioning frame (4). A snap-fit ​​block (11) is snapped into the inside of the fixing frame (10). The back of the snap-fit ​​block (11) is connected to the front of the rear dust filter (12).

3. The automotive generator rotor assembly according to claim 1, characterized in that: A sealing ring (14) is fixedly installed on the front end of the rear cover (2), and the inside of the sealing ring (14) is wrapped around the end surface of the front dust filter (13).

4. The automotive generator rotor assembly according to claim 1, characterized in that: A sealing cover (17) is fixedly installed on the front of the protective cover (15). The sealing cover (17) and the protective cover (15) can form a sealed protective structure. The front end of the sealing cover (17) is sealed and fitted to the back of the front dust filter (13).

5. The automotive generator rotor assembly according to claim 1, characterized in that: The surface of the support plate (8) is provided with a groove in an annular shape, and the rear end of the positioning sleeve (9) is engaged with the inside of the groove by a protrusion and is fastened.

6. The automotive generator rotor assembly according to claim 1, characterized in that: The mesh size of the front dust filter (13) is larger than that of the rear dust filter (12), and the front dust filter (13) and the rear dust filter (12) are respectively distributed on the front and rear sides of the cooling fan (16).

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