Generator and vehicle

Abstract

The utility model discloses an electric generator and a vehicle, and belongs to the technical field of automobiles, the electric generator comprises an electric generator body and an electric generator shield, heat dissipation holes are formed in the side face of the electric generator body, and the electric generator shield comprises a shield body; the shield body is arranged on the outer side of the generator body and covers the heat dissipation holes, and a gap exists between the shield body and the generator body. According to the generator provided by the invention, the shield body covers the heat dissipation hole area of the generator body, so that the heat dissipation holes can be shielded and protected to a certain extent, large-particle foreign matters are prevented from falling into the heat dissipation holes to damage internal devices of the generator body, and meanwhile, a gap is reserved between the shield body and the generator body, so that the internal devices of the generator body are prevented from being damaged. Heat dissipation of the generator body is not affected, normal work of the generator body is guaranteed, faults can be reduced, and the service life of the generator is prolonged.

Description

Technical Field

[0001] This application relates to the field of automotive technology, and more specifically, to a generator and a vehicle. Background Technology

[0002] With the rapid development of the modern automotive industry, competition is particularly fierce. OEMs have also developed their own hybrid and new energy products. As a hybrid project, the 48V hybrid generator is an indispensable component. Given the varying application environments of different vehicles, ensuring the generator's normal operation and low failure rate has become paramount.

[0003] Generators generate heat during operation. To maintain their normal operating temperature, they are equipped with cooling vents. These vents connect the internal airflow to the external airflow, allowing outside air to enter and exchange heat, thus cooling the generator. However, the generator's stator, rotor, fan, and electrical components are located near these cooling vents. Large foreign objects can easily enter the generator through these vents and, driven by the high-speed rotation of the fan, can easily collide with the stator, rotor, and electrical components, causing damage and potentially leading to generator failure. Utility Model Content

[0004] This application aims to provide a generator and vehicle that solves the problem in the prior art where large foreign objects can easily enter the generator through the heat dissipation holes and cause damage to the generator.

[0005] A generator includes a generator body and a generator cover; the generator body is provided with heat dissipation holes, and the generator cover includes a cover body; the cover body is disposed outside the generator body and covers the heat dissipation holes, and there is a gap between the cover body and the generator body.

[0006] Optionally, the heat dissipation holes are disposed on the side of the generator body; the shield body is configured as an arc-shaped side shell structure, the shield body is disposed on the side of the generator body and arranged coaxially with the generator body; viewed radially along the generator body, the two ends of the shield body in its circumferential direction extend beyond the boundary of the heat dissipation holes in the circumferential direction of the generator body; the two ends of the shield body in its axial direction extend beyond the boundary of the heat dissipation holes in the axial direction of the generator body.

[0007] Optionally, the generator cover further includes a first connecting portion, which is connected to the cover body; the thickness of the first connecting portion is less than the axial width of the cover body, and the first connecting portion is located at the middle position in the axial direction of the cover body; a first connecting structure is provided on the first connecting portion, which connects and fixes the engine cover to the generator body along the radial direction of the generator body.

[0008] Optionally, the generator body is provided with a plurality of spaced first bolts along the circumference; the shape of the first connecting part is set to an arc shape, the first connecting structure includes a plurality of slots, the plurality of slots are spaced along the inner circumference of the first connecting part, and the plurality of slots engage with the plurality of first bolts.

[0009] Optionally, the first connecting structure includes a first slot, a second slot, and a third slot, which are sequentially distributed on the inner circumference of the first connecting portion; the opening directions of the first slot and the second slot are directly opposite to the center of the inner circumference of the first connecting portion, and the opening direction of the third slot is opposite to the center of the inner circumference of the first connecting portion.

[0010] Optionally, the generator cover further includes a second connecting portion, which is connected to the cover body; the thickness of the second connecting portion is less than the axial width of the cover body, and the second connecting portion is located at the end position of the cover body in the axial direction; the second connecting portion is provided with a second connecting structure, which connects and fixes the generator cover to the generator body along the axial direction of the generator body.

[0011] Optionally, the generator body is provided with a connecting boss, and the connecting boss has a threaded hole along the axial direction of the generator body; the second connecting part is provided corresponding to the connecting boss, and the second connecting structure includes a bolt through hole and a second bolt, the second bolt passes through the bolt through hole and is threadedly engaged with the threaded hole to abut against the connecting boss.

[0012] Optionally, an insert is provided inside the bolt through hole, and the insert has an inner hole through which the second bolt can pass.

[0013] Optionally, the outer side of the protective cover body is provided with reinforcing ribs.

[0014] Optionally, the generator cover is provided with ventilation holes.

[0015] Beneficial effects:

[0016] The generator described in this application includes a generator body and a generator cover. The generator body has heat dissipation holes, and the generator cover includes a cover body. The cover body is disposed outside the generator body and covers the heat dissipation holes, with a gap between the cover body and the generator body. The generator provided in this application, by covering the heat dissipation hole area of ​​the generator body with the cover body, can provide a certain degree of shielding and protection for the heat dissipation holes, effectively preventing large foreign objects from falling into the heat dissipation holes and damaging the internal components of the generator body. At the same time, the gap between the cover body and the generator body does not affect the heat dissipation of the generator body, ensuring the normal operation of the generator body, helping to reduce the failure rate and extend the service life of the generator.

[0017] This application also provides a vehicle including the generator described above.

[0018] The advantages of the vehicle and the generator mentioned above compared to existing technologies are the same, and will not be elaborated here. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the arrangement of the generator cover and the generator body in a generator according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the structure of the generator cover in a generator according to an embodiment of this application;

[0022] Figure 3 This is a side view of the generator housing in a generator according to an embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of the generator body in a generator according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram showing the correspondence between the fixed points of the generator cover and the generator body in an embodiment of this application.

[0025] Figure 6 This is a schematic diagram of the snap-fit ​​direction of the first, second, and third snap-fit ​​slots of the generator cover in an embodiment of this application (the direction indicated by the arrows in the diagram is the snap-fit ​​direction).

[0026] Figure 7 This is a cross-sectional schematic diagram of the groove structure of the generator cover in an embodiment of this application;

[0027] Figure 8 This is a cross-sectional schematic diagram of the bolt through holes in the generator cover of a generator according to an embodiment of this application.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Generator body; 11. Heat dissipation hole; 12. First bolt; 13. Connecting boss; 2. Generator cover; 21. Cover body; 22. First connecting part; 221. First slot; 222. Second slot; 223. Third slot; 23. Second connecting part; 231. Bolt through hole; 232. Insert; 24. Reinforcing rib; 25. Ventilation hole; 26. Groove structure. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In related technologies, generators generate heat during operation. To maintain the generator's normal operating temperature, cooling vents are installed on the generator. These vents connect the internal airflow to the external airflow, allowing external air to enter the generator for heat exchange and thus dissipate heat. However, the generator's stator, rotor, fan, and electrical components are located near these cooling vents. Large foreign objects can easily enter the generator through these vents and, driven by the high-speed rotation of the fan, can easily collide with the stator, rotor, and electrical components, causing damage and potentially leading to generator failure.

[0032] In view of this, an embodiment of this application proposes a generator.

[0033] See Figure 1 A generator includes a generator body 1 and a generator cover 2; the generator body 1 is provided with heat dissipation holes 11, and the generator cover 2 includes a cover body 21; the cover body 21 is disposed on the outside of the generator body 1 and covers the heat dissipation holes 11, and there is a gap between the cover body 21 and the generator body 1.

[0034] Specifically, Figure 1The diagram shows the arrangement of the generator body 1 and the generator cover 2. Both the front and rear housings of the generator body 1 are provided with heat dissipation holes 11. The generator cover 2 is fixed to the outside of the generator body 1 and includes a cover body 21. The cover body 21 covers the area where the heat dissipation holes 11 are located, thus providing some shielding and protection for the heat dissipation holes 11. This effectively prevents large external particles from falling directly into the heat dissipation holes 11 and entering the generator body 1, avoiding damage to the internal components of the generator body 1 and ensuring the normal operation of the generator. At the same time, a certain gap is left between the cover body 21 and the generator body 1 to ensure air circulation and not affect the heat dissipation of the generator body 1, ensuring that the generator remains at a normal operating temperature. Therefore, by setting up the generator cover 2, the product failure rate can be reduced, product quality improved, and maintenance costs reduced.

[0035] In this embodiment, the generator body 1 has a cylindrical structure, and the heat dissipation holes 11 are located on the side of the generator body 1. To further ensure the shielding and protection of the heat dissipation holes 11, the shield body 21 is set as an arc-shaped side shell structure, arranged coaxially with the generator body 1, and located on the side of the generator body 1. When viewed radially along the generator body 1, the two ends of the shield body 21 in the circumferential direction extend beyond the boundary of the heat dissipation holes 11 in the circumferential direction of the generator body 1, and the two ends of the shield body 21 in the axial direction extend beyond the boundary of the heat dissipation holes 11 in the axial direction of the generator body 1. In this way, the shield body 21 can cover the area where the heat dissipation holes 11 are located in both the axial and circumferential directions of the generator body 1, ensuring the shielding and protection effect.

[0036] Optionally, the generator cover 2 further includes a first connecting part 22, which is connected to the cover body 21; the first connecting part 22 is provided with a first connecting structure, which connects and fixes the first connecting part 22 to the generator body 1 along the radial direction of the generator body 1.

[0037] For details, see Figure 2 The generator cover 2 also includes a first connecting part 22, which is fixedly mounted on the cover body 21 for installation and fixation with the generator body 1. Specifically, the first connecting part 22 is provided with a first connecting structure, which can connect and fix the first connecting part 22 to the generator body 1 along the radial direction of the generator body 1, thereby ensuring the installation stability of the generator cover 2 on the outside of the generator body 1.

[0038] Optionally, the generator cover 2 further includes a second connecting part 23, which is connected to the cover body 21; the second connecting part 23 is provided with a second connecting structure, which connects and fixes the second connecting part 23 to the generator body 1 along the axial direction of the generator body 1.

[0039] Specifically, the generator cover 2 also includes a second connecting part 23, which is fixedly mounted on the cover body 21 for installation and fixation with the generator body 1. Specifically, the second connecting part 23 is provided with a second connecting structure, which can connect and fix the second connecting part 23 to the generator body 1 along the axial direction of the generator body 1, thereby ensuring the installation stability of the generator cover 2 on the outside of the generator body 1.

[0040] In this embodiment, by providing the first connecting part 22 and the second connecting part 23, the protective cover body 21 can be conveniently installed and fixed on the outside of the generator body 1. By providing the first connecting structure and the second connecting structure, the generator protective cover 2 can be connected and fixed to the generator body 1 from the radial and axial directions of the generator body 1, respectively, thereby enhancing the stability and reliability of the installation and preventing the generator protective cover 2 from becoming loose and affecting the normal operation of the generator body 1.

[0041] Optionally, the generator body 1 is provided with a plurality of spaced first bolts 12 along the circumferential direction; the shape of the first connecting part 22 is set to an arc shape, and the first connecting structure includes a plurality of slots, the plurality of slots are spaced along the inner circumference of the first connecting part 22, and the plurality of slots are engaged with the plurality of first bolts 12.

[0042] Specifically, the front and rear housings of the generator body 1 are connected by multiple first bolts 12, the axes of which are parallel to the axis of the generator body 1, and the multiple first bolts 12 are distributed circumferentially around the generator body 1. In this embodiment, to improve the compatibility with the generator body 1, the protective cover body 21 is configured as an arc-shaped side shell structure, coaxially disposed on the side of the generator body 1. The first connecting part 22 is disposed on the inner side of the protective cover body 21, that is, on the side facing the generator body 1. The thickness of the first connecting part 22 is less than the axial width of the protective cover body 21. The first connecting part 22 is located at the middle position of the protective cover body 21 in the axial direction, corresponding to the position of the first bolts 12. The shape of the first connecting part 22 is also set as an arc, which can adapt to the outer shape of the generator body 1. At the same time, the arc-shaped structure can also provide better support for the protective cover body 21, which helps to enhance the structural strength of the generator cover. By setting multiple slots, the generator cover 2 can be directly snapped onto the connecting bolt between the front and rear housings of the generator body 1, i.e., the first bolt 12. There is no need to set additional connectors on the generator body 1 to connect the generator cover 2, which makes the structure simpler and helps to reduce costs.

[0043] The first connection structure includes multiple spaced slots, which are located on the inner circumference of the arc-shaped first connection part 22. The number of slots is less than or equal to the number of first bolts 12. The slots can engage with the cylindrical smooth rod part of the first bolt 12 at the corresponding position, thereby achieving radial connection and fixation between the generator cover and the generator body 1.

[0044] Optionally, the first connecting structure includes a first slot 221, a second slot 222, and a third slot 223, which are sequentially distributed on the inner circumference of the first connecting portion 22. The opening directions of the first slot 221 and the second slot 222 are directly opposite to the center of the inner circumference of the first connecting portion 22, and the opening direction of the third slot 223 is opposite to the center of the inner circumference of the first connecting portion 22.

[0045] Specifically, the number of first bolts 12 is usually set to four, and the four first bolts 12 are evenly distributed along the circumference of the generator body 1. In this embodiment, the first connecting part 22 is an arc-shaped structure with a length greater than or equal to half the circumference. Three slots are provided, and the central angle between two adjacent slots is 90°. The three slots are the first slot 221, the second slot 222, and the third slot 223. The first slot 221 and the third slot 223 are located at the edge, and the second slot 222 is located in the middle. The opening direction of the first slot 221 and the second slot 222 is directly opposite to the center of the inner circumference of the first connecting part 22. When installing the generator cover 2, the snapping direction of the first slot 221 and the second slot 222 both point to the center of the inner circumference of the first connecting part 22, that is, the radial direction of their respective positions. To further facilitate installation, the opening direction of the third slot 223 is offset from the center of the inner circumference of the first connecting part 22, facing outwards. Figure 6 As shown, there is an angle between the snap-fit ​​direction of the third slot 223 and the radial direction of the location of the third slot 223, which can prevent snap-fit ​​difficulties and improve the ease of assembly. During installation, the first slot 221, the second slot 222 and the third slot 223 are snapped into the corresponding first bolts 12 in sequence, which can quickly complete the installation. Disassembly is performed in the reverse order.

[0046] In practical applications, the angle between the snapping direction of the third slot 223 and the radius direction of the location of the third slot 223 can be reasonably set according to actual needs. As an example, in this embodiment, the angle is set to 30°.

[0047] Optionally, the generator body 1 is provided with a connecting boss 13, and the connecting boss 13 is provided with a threaded hole along the axial direction of the generator body 1; the second connecting part 23 is provided corresponding to the connecting boss 13, and the second connecting structure includes a bolt through hole 231 and a second bolt, the second bolt passes through the bolt through hole 231 and is threadedly engaged with the threaded hole to abut the second connecting part 23 against the connecting boss 13.

[0048] Specifically, the generator body 1 is provided with a connecting boss 13, and the connecting boss 13 has a threaded hole inside, the axis of which is consistent with the axis of the generator body 1. A second connecting part 23 is provided on the protective cover body 21. The thickness of the second connecting part 23 is less than the axial width of the protective cover body 21. The second connecting part 23 is located at the axial end of the protective cover body 21, corresponding to the position of the connecting boss 13, facilitating connection. The second connecting structure includes a bolt through hole 231 and a second bolt provided on the second connecting part 23. The position of the bolt through hole 231 corresponds to the position of the threaded hole in the connecting boss 13. During installation, the second bolt is passed through the bolt through hole 231 and then screwed into the threaded hole, locking the second connecting part 23 and the connecting boss 13 together, thus achieving axial connection and fixation between the generator cover 2 and the generator body 1.

[0049] Optionally, an insert 232 is provided inside the bolt through hole 231, and the insert 232 has an inner hole through which the second bolt passes.

[0050] To further ensure connection strength, an insert 232 is provided on the inner circumference of the bolt through hole 231. The insert 232 is made of metal and is embedded in the bolt through hole 231. The insert 232 has an inner hole so that the second bolt can pass through. By providing the metal insert 232, the clamping force of the second bolt can be better supported, preventing the second connection part 23 from being crushed, thus improving the connection strength and ensuring the reliability of the connection.

[0051] Furthermore, the inner edge of the insert 232 can also be chamfered to provide guidance during the installation of the second bolt, thereby improving the ease of assembly.

[0052] Optionally, the outer side of the protective cover body 21 is provided with reinforcing ribs 24.

[0053] Specifically, to further increase the strength of the shield body 21, reinforcing ribs 24 are also provided on the shield body 21. The shape and number of reinforcing ribs 24 can be reasonably arranged according to actual needs. As an example, in this embodiment, the reinforcing ribs 24 are made of mesh ribs and are set on the outside of the shield body 21. While increasing the strength of the generator shield 2, they can also improve the modal characteristics, play a role in noise reduction, and help improve NVH (Noise, Vibration, Harshness) performance.

[0054] Optionally, the generator cover 2 is also provided with ventilation holes 25.

[0055] Specifically, to further ensure heat dissipation of the generator body 1, ventilation holes 25 are provided on the generator cover 2. The shape, number, and position of the ventilation holes 25 can be flexibly set according to actual needs. As an optional implementation, in this embodiment, four ventilation holes 25 are provided, and they are square holes, specifically opened on the arc-shaped first connecting part 22. By providing ventilation holes 25 on the generator cover 2, air circulation can be ensured during vehicle operation, which is beneficial to ensuring heat dissipation of the generator body 1.

[0056] See Figure 2 In this embodiment, a groove structure 26 is formed on the outer surface of the cover body 21. The groove structure 26 is recessed towards the side closer to the generator body 1. The groove structure 26 is located at the end of the cover body 21 axially close to the second connecting part 23. The bottom surface of the groove structure 26 is set as an arc-shaped surface, and the concave surface of the arc-shaped groove bottom faces the generator body 1. Since the groove structure 26 is recessed towards the generator body 1, when assembling the generator cover 2, the groove structure 26 can abut against the generator body 1 from the inside, thereby providing support for the installation of the generator cover 2 on the generator body 1 and improving the reliability of the installation. The position of the groove structure 26 corresponds to the position of the connecting boss 13 on the generator body 1. Setting the bottom of the groove as an arc shape can avoid the connecting boss 13 and does not affect the installation of the second bolt. Figure 7 As shown, the groove structure 26 corresponds to the position of the connecting boss 13, and the connecting boss 13 can be located in the cavity formed by the groove structure 26 on the side facing the generator body 1.

[0057] In addition, in this embodiment, the generator cover 2 is made of plastic and is formed by injection molding. Compared with the solid structure, the groove structure 26 can reduce the defects of injection molding, ensure the molding quality, and at the same time reduce weight, save materials, and meet the requirements of lightweighting.

[0058] In the embodiment of this application, the generator cover 2 is assembled by first snapping the first connecting part 22 onto the outer periphery of the generator body 1. Specifically, the first slot 221, the second slot 222, and the third slot 223 are sequentially snapped onto the corresponding first bolts 12 on the generator body 1 to achieve radial connection and fixation between the generator cover 2 and the generator body 1. After snapping, the second connecting part 23 is then connected to the connecting boss 13 on the generator body 1. Specifically, a second bolt is used, which passes through the bolt through hole 231 on the second connecting part 23 and engages with the threaded hole in the connecting boss 13 to lock it in place. Finally, the second connecting part 23 and the connecting boss 13 are locked together to achieve axial connection and fixation between the generator cover 2 and the generator body 1.

[0059] When disassembly is required, first loosen the second bolt, remove the second connecting part 23 and the connecting boss 13, and then remove the first connecting part 22 from the outer periphery of the generator body 1 in the order of the third slot 223, the second slot 222, and the first slot 221, and finally complete the disassembly of the generator cover 2 and the generator body 1.

[0060] The generator cover 2 provided in this application embodiment has a simple structure and is easy to disassemble and assemble. It can effectively prevent foreign objects from entering the generator body 1, which helps to reduce product failure rate, improve product quality and reduce maintenance costs.

[0061] This application also provides a vehicle that includes the generator described above.

[0062] The advantages of the vehicle and the generator mentioned above compared to existing technologies are the same, and will not be elaborated here.

[0063] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0064] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0065] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. A generator, characterized in that: Includes generator body (1) and generator cover (2); The generator body (1) has heat dissipation holes (11) on its side. The generator cover (2) includes a cover body (21). The cover body (21) is located on the outside of the generator body (1) and covers the heat dissipation holes (11). There is a gap between the cover body (21) and the generator body (1).

2. The generator according to claim 1, characterized in that: The shield body (21) is configured as an arc-shaped side shell structure. The shield body (21) is disposed on the side of the generator body (1) and is coaxially arranged with the generator body (1). Viewed radially along the generator body (1), the shield body (21) extends beyond the boundary of the heat dissipation hole (11) in the circumferential direction at both ends of its circumferential direction; the shield body (21) extends beyond the boundary of the heat dissipation hole (11) in the axial direction at both ends of its axial direction.

3. The generator according to claim 1, characterized in that: The generator cover (2) further includes a first connecting part (22), which is connected to the cover body (21); The thickness of the first connecting part (22) is less than the width of the shield body (21) in the axial direction, and the first connecting part (22) is located at the middle position in the axial direction of the shield body (21); The first connecting part (22) is provided with a first connecting structure, which connects and fixes the generator cover (2) to the generator body (1) along the radial direction of the generator body (1).

4. The generator according to claim 3, characterized in that: The generator body (1) is provided with a plurality of spaced first bolts (12) along the circumferential direction. The first connecting part (22) is shaped like an arc. The first connecting structure includes multiple slots. The multiple slots are distributed at intervals along the inner circumference of the first connecting part (22), and the multiple slots are engaged with multiple first bolts (12).

5. The generator according to claim 4, characterized in that: The first connecting structure includes a first slot (221), a second slot (222), and a third slot (223). The first slot (221), the second slot (222), and the third slot (223) are sequentially distributed on the inner circumference of the first connecting part (22). The opening directions of the first slot (221) and the second slot (222) are directly opposite to the center of the inner circumference of the first connecting part (22), and the opening direction of the third slot (223) is opposite to the center of the inner circumference of the first connecting part (22).

6. The generator according to claim 1, characterized in that: The generator cover (2) further includes a second connecting part (23), which is connected to the cover body (21); The thickness of the second connecting part (23) is less than the axial width of the protective cover body (21), and the second connecting part (23) is located at the end position of the protective cover body (21) in the axial direction; The second connecting part (23) is provided with a second connecting structure, which connects and fixes the generator cover (2) to the generator body (1) along the axial direction of the generator body (1).

7. The generator according to claim 6, characterized in that: The generator body (1) is provided with a connecting boss (13), and the connecting boss (13) is provided with a threaded hole along the axial direction of the generator body (1). The second connecting part (23) is provided corresponding to the connecting boss (13). The second connecting structure includes a bolt through hole (231) and a second bolt. The second bolt passes through the bolt through hole (231) and is threadedly engaged with the threaded hole to press the second connecting part (23) against the connecting boss (13).

8. The generator according to claim 7, characterized in that: A groove structure (26) is formed on the protective cover body (21). The groove structure (26) is located at one end of the protective cover body (21) axially close to the second connecting part (23) and corresponds to the position of the connecting boss (13). The groove structure (26) is recessed towards the side closer to the generator body (1). The bottom surface of the groove structure (26) is set as an arc surface, and the concave surface of the arc surface faces the generator body (1).

9. The generator according to claim 1, characterized in that: The outer side of the protective cover body (21) is provided with reinforcing ribs (24), and / or ventilation holes (25) are provided on the generator cover (2).

10. A vehicle, characterized in that, Includes the generator as described in any one of claims 1-9.

Images