Generator shell assembly, generator and vehicle

Abstract

The invention provides an electric generator shell assembly and a vehicle, the electric generator shell assembly comprises a first shell and a second shell, the first shell is provided with a first side and a second side opposite to the first side, the first side is connected to an engine cylinder block, a motor stator is fixedly connected to the second side, a first bearing hole is formed in the first shell, and a second bearing hole is formed in the second side of the first shell; the first bearing is used for mounting a motor shaft; the second shell is connected to the first shell, and an accommodating space is defined by the second shell and the first shell; the bearing supporting plate is fixed to the second shell, a second bearing hole is formed in the bearing supporting plate, and a second bearing of the motor shaft is installed in the second bearing hole. The generator shell assembly is light in overall weight, low in manufacturing cost, reasonable in space distribution, compact in structure and high in practicability. High strength, NVH (Noise Vibration and Harshness) performance and cooling performance are realized.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle generators, and in particular, to a generator housing assembly, a generator and a vehicle. Background Art

[0002] In order to reduce fuel consumption and increase vehicle range, extended-range electric vehicles (EREV) have become one of the mainstream technical routes for the development of new energy vehicles. In order to reduce the cost of the entire vehicle, the generator of the extended-range electric vehicle also urgently needs to reduce costs and increase efficiency, further improve motor performance and reduce manufacturing costs. As the main structure of the motor system, the motor housing system needs to be further developed in the direction of compact structure, high reliability of the whole machine and low cost.

[0003] In some known generator systems, the motor stator is usually connected to the generator housing which is far from the engine, and the strength, integration, cooling method, pressure relief method, etc. of the housing have room for improvement.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] One aspect of the present application is to solve a technical problem of how to improve the NVH performance of a range-extended electric vehicle generator.

[0006] In addition, other aspects of the present application are also intended to solve or alleviate other technical problems existing in the prior art.

[0007] The present application provides a generator housing assembly, a generator and a vehicle. Specifically, according to one aspect of the present application, the present application provides:

[0008] A generator housing assembly, comprising:

[0009] A first housing having a first side and a second side opposite to the first side, wherein the first side is connected to the engine cylinder block, a motor stator is fixedly connected to the second side, and a first bearing hole is provided on the first housing for mounting a first bearing of the motor shaft;

[0010] a second shell, the second shell being connected to the first shell and enclosing a containing space with the first shell;

[0011] A bearing support plate is fixed to the second housing, and a second bearing hole is provided on the bearing support plate for mounting a second bearing of the motor shaft.

[0012] Optionally, according to one embodiment of the present application, a plurality of annular reinforcing ribs are arranged on the second side of the first shell with the first bearing hole as the center, and the first bearing hole is connected to the annular reinforcing ribs in a radial direction through straight reinforcing ribs evenly distributed along the circumference.

[0013] Optionally, according to one embodiment of the present application, the second shell has a front side facing the second side and a rear side opposite to the front side, and a mounting recess is provided on the front side, and a mechanical oil pump is installed on the second shell through the mounting recess, and the low-pressure and high-pressure oil chambers of the mechanical oil pump are integrated into the second shell.

[0014] Optionally, according to one embodiment of the present application, a plurality of annular reinforcing ribs are arranged on the front side of the second shell with the mounting recess as the center, and the mounting recess is connected to the annular reinforcing ribs in a radial direction through straight reinforcing ribs evenly distributed along the circumference.

[0015] Optionally, according to an embodiment of the present application, a tic-tac-toe shaped reinforcement rib is provided on the outer side of the first shell except the first side, and / or a tic-tac-toe shaped reinforcement rib is provided on the outer side of the second shell except the rear side.

[0016] Optionally, according to an embodiment of the present application, a spray pipe for spray cooling of the motor is installed on the first shell, and the spray pipe is installed on the first shell through a mounting hole provided on the first shell, and a positioning step portion is provided at the mounting hole.

[0017] Optionally, according to an embodiment of the present application, an oil cooler and oil inlet and outlet pipes connected to the oil cooler are provided on the second side of the first shell.

[0018] Optionally, according to one embodiment of the present application, a vent channel is provided in the first shell above the motor stator, a vent plug is provided at the outlet of the vent channel, and an oil and gas blocking structure is provided at the bottom of the vent channel, and the oil and gas blocking structure is configured as a protrusion protruding inward from the inner wall of the vent channel.

[0019] Optionally, according to one embodiment of the present application, an adapter plate bracket is provided on the first shell for transferring the three-phase electrical interface of the generator to a high-voltage connector, and an opening for installing the adapter plate bracket is provided at corresponding positions of the second shell and the adapter plate bracket, and the opening is closed by a cover plate.

[0020] Optionally, according to an embodiment of the present application, a rotary transformer and a temperature sensor are installed between the bearing support plate and the second shell.

[0021] Optionally, according to an embodiment of the present application, a suction filter is provided on the second housing below the motor stator, an oil drain port is provided below the suction filter, and the oil drain port is closed by an oil drain plug.

[0022] According to another aspect of the present application, the present application provides a generator, which has the generator housing assembly described above and a motor shaft, a motor stator and a motor rotor installed in the accommodating space, one end of the motor shaft is supported on the first bearing hole through the first bearing, and the other end is supported on the second bearing hole through the second bearing, and the motor stator is fixedly mounted on the first housing.

[0023] Optionally, according to an embodiment of another aspect of the present application, the motor stator is connected to the first housing by means of 6 mounting hole bolts evenly arranged along the circumference thereof.

[0024] Optionally, according to an embodiment of another aspect of the present application, a cooling oil channel is provided on the motor rotor to achieve internal cooling of the generator by stirring the oil of the motor shaft.

[0025] According to still another aspect of the present application, the present application provides a vehicle, wherein the vehicle includes the generator described above, and the generator is mounted on an engine block of the vehicle through the first housing.

[0026] Benefits of this application include:

[0027] 1. The generator housing assembly of the present application sets the motor stator on the housing directly connected to the engine, optimizes the arrangement and integration of the components in the generator, shortens the axial space of the housing, makes the generator more compact as a whole, and improves the NVH performance of the generator;

[0028] 2. The generator housing assembly of the present application is provided with annular, radial and well-shaped reinforcement ribs on each housing, which improves the strength of the housing and also improves the NVH performance of the whole machine;

[0029] 3. The generator housing assembly of the present application is cooled by spray cooling and internal cooling of the motor shaft, which has a better cooling effect than the general external spray cooling method. In addition, a bleed channel is constructed on the housing, which can bleed air through the bleed plug to adjust the problem of excessive oil pressure in the generator compartment, thereby ensuring safe and reliable operation of the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] With reference to the accompanying drawings, the above and other features of the present application will become apparent. It is easy for those skilled in the art to understand that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present application. In addition, similar numbers in the drawings are used to represent similar components, among which,

[0031] Figure 1 An exploded schematic diagram of a generator according to one embodiment of the present application is shown;

[0032] Figure 2 An exploded schematic diagram of a generator according to an embodiment of the present application viewed from another direction and a high-voltage connector and an inverter connected to the generator are shown. DETAILED DESCRIPTION

[0033] It is easy to understand that according to the technical solution of the present application, without changing the essential spirit of the present application, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present application, and should not be regarded as the entirety of the present application or as a limitation or restriction on the technical solution of the present application.

[0034] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to their different positions and different usage states. Therefore, these or other directional terms should not be interpreted as restrictive terms. In addition, the terms "first", "second", "third", etc. or similar expressions are only used for description and distinction purposes, and cannot be understood as indicating or implying the relative importance of the corresponding components or the order or assembly order of the components.

[0035] In an extended-range electric vehicle, the generator mainly generates electricity through the operation of the internal combustion engine. When the battery power of the electric vehicle drops to a certain level, the generator will start to charge the battery or directly provide electricity to the motor, thereby increasing the vehicle's mileage. Therefore, one end of the generator is connected to the engine, and the engine inputs power into the generator to generate electricity, and the other end is electrically connected to the battery to provide electricity for charging the battery. Since the generator in the extended-range electric vehicle is closer to the engine, its own motor shaft also needs to rotate at a higher speed to work, so the NVH performance of the generator is very important to the driving comfort of the extended-range electric vehicle. For this type of generator, since both ends of the motor shaft are supported on a housing component respectively, how to set the structure of the generator housing has a great influence on the overall NVH performance of the generator.

[0036] refer to Figure 1 and Figure 2 , which respectively show the exploded schematic diagrams of the generator proposed according to an embodiment of the present application from two different directions. The generator of the present application has a generator housing with higher strength and integration and lower weight and cost, thereby improving the overall NVH performance of the generator. The generator 10 includes a generator housing assembly 1, a motor shaft 2, a motor stator 3 and a motor rotor 4. The motor shaft 2, the motor stator 3 and the motor rotor 4 are arranged inside the generator housing assembly 1. Figure 2 Also shown are a high-voltage connector 5 and an inverter 6 for connecting to the three-phase electrical interface of the generator 10. The high-voltage electricity generated by the generator 10 is transmitted to the battery through the high-voltage connector 5 and processed by the inverter 6 to charge the battery.

[0037] The generator housing assembly 1 includes a first housing 100, a second housing 200 and a bearing support plate 300. For the convenience of description, the direction from the first housing 100 to the second housing 200 is defined as the direction from front to back, and the vertical direction in the drawings is defined as the direction from top to bottom. The first housing 100 has a first side 110 (at the front) Figure 1 ) and a rear second side 120 opposite to the first side 110 (in Figure 2 (as can be seen in the figure), according to the arrangement of the first housing 100, the first side 110 belongs to a part of the outer side of the first housing 100, and the second side 120 belongs to a part of the inner side of the first housing 100. The first housing 100 is connected to the engine block at the first side 110. In particular, the first side 110 is designed to conform to the shape of the engine block, so that the shape of the first housing 100 at the first side 110 matches the engine. In one embodiment, the gap between the first housing 100 and the shock absorber is greater than or equal to 3.8 mm, so as to achieve a compact design of the front end of the generator housing assembly 1 and ensure the space requirement with the shock absorber. The motor stator 3 is fixedly connected to the second side 120 of the first housing 100, and the motor stator 3 is first positioned on the first housing 100 by a hollow positioning pin, for example, and then fixed to the second side 120 by bolts. The motor stator 3 is arranged on the first housing 100 instead of the second housing 200, so that the motor stator 3 is closer to the engine end, thereby improving the overall NVH performance of the generator 10. In one embodiment, there is a gap of 1.95 mm or more between the motor stator 3 and the first housing 100, so that the overall space layout of the first housing 100 is more compact and better meets the space limit requirements of the vehicle. A first bearing hole 101 is provided on the first housing 100 for mounting the first bearing 21 of the motor shaft 2.

[0038] In one embodiment of the present application, the motor stator 3 is bolted to the first housing 100 through six mounting holes 31 evenly arranged along its circumference. In some known generators, the motor stator is generally bolted to the housing through three or four mounting holes. The mounting structure of six mounting holes 31 adopted in the present application makes the fixation between the motor stator 3 and the housing more stable and has better NVH performance.

[0039] The second housing 200 is connected to the first housing 100 and encloses a receiving space of the generator housing assembly 1 with the first housing 100. The motor shaft 2, the motor stator 3 and the rotor 4 are received in the receiving space. The second housing 200 has a front side 210 facing the second side 120 (at Figure 1 ) and a rear side 220 (in the rear) opposite to the front side 210. Figure 2 According to the arrangement of the second housing 200, the front side 210 is a part of the inner side of the second housing 200, and the rear side 220 is a part of the outer side of the second housing 200. The bearing support plate 300 is fixed to the second housing 200, especially to the front side 210 of the second housing 200. A second bearing hole 301 is provided on the bearing support plate 300 for mounting the second bearing 22 of the motor shaft 2.

[0040] Thus, one end of the motor shaft 2 is supported on the first bearing hole 101 of the first housing 100 through the first bearing 21, and the other end is supported on the second bearing hole 301 of the bearing support plate 300 through the second bearing 22. In this way, the first housing 100, the bearing support plate 300, the second housing 200, the motor shaft 2, the first bearing 21 and the second bearing 22 together constitute the rotation system of the generator 10, which can ensure that the motor shaft 2 rotates coaxially with the engine crankshaft, and the axial space of the generator housing assembly 1 is shorter, and the generator 10 is more compact as a whole.

[0041] In one embodiment of the present application, the basic wall thickness of the first shell 100 and the second shell 200 is about 4 mm, and the wall thickness is designed to be uniform. The first shell 100 and the second shell 200 are made of Si9Cu3Fe, for example, which ensures a lightweight shell design while also having high rigidity and strength.

[0042] In one embodiment of the present application, a mounting recess 201 is provided on the front side 210 of the second housing 200, and a mechanical oil pump 7 is mounted on the second housing 200 through the mounting recess 201. The low-pressure and high-pressure oil chambers of the mechanical oil pump 7 are integrated into the second housing 200, thereby making the housing more integrated.

[0043] In one embodiment of the present application, a plurality of annular reinforcing ribs 111 are provided on the first side 110 and the second side 120 of the first housing 100 with the first bearing hole 101 as the center, and the first bearing hole 101 is connected to the annular reinforcing ribs 111 in the radial direction through the linear reinforcing ribs 112 evenly distributed along the circumference; a plurality of annular reinforcing ribs 211 are provided on the front side 210 of the second housing 200 with the mounting recess 201 as the center, and the mounting recess 201 is connected to the annular reinforcing ribs 211 in the radial direction through the linear reinforcing ribs 212 evenly distributed along the circumference. By providing the annular reinforcing ribs 211 and the linear reinforcing ribs 212 (also referred to as radial reinforcing ribs) connecting the annular reinforcing ribs 211, the strength of the housing is improved, especially the strength of the first side 110 and the second side 120 of the first housing 100 and the front side 210 of the second housing 200 is improved.

[0044] In one embodiment of the present application, a criss-cross shaped reinforcing rib 131 is provided on the outer side of the first shell 100 except the first side 110, and a criss-cross shaped reinforcing rib 231 is provided on the outer side of the second shell 200 except the rear side 220, so as to improve the strength of the shells, especially the strength of the outer sides of the first shell 100 and the second shell 200.

[0045] In one embodiment of the present application, a spray pipe 102 for spray cooling of the motor is provided in the first housing 100, especially at the second side 120 of the first housing 100. The spray pipe 102 is provided, for example, above the motor stator 3, and one end thereof is fixed in a mounting hole (not clearly shown in the figure due to the obstruction of other structures) provided on the first housing 100, and a positioning step 103 is provided at the mounting hole. When the spray pipe 102 is installed, the positioning step 103 can realize the pre-positioning of the spray pipe 102 and the mounting hole. When the positioning feature provided on the spray pipe 102, such as the positioning protrusion, abuts against the positioning step 103, the spray pipe 102 can be accurately inserted into the mounting hole, thus preventing the spray pipe 102 from being misplaced and installed in a mounting hole that does not match it, making the generator 10 more ergonomically friendly. The other end of the spray pipe 102 is fixed on the second housing 200, especially fixed in the mounting hole provided on the second housing 200.

[0046] In one embodiment of the present application, an oil cooler 104 and an oil inlet 1041 and an oil outlet pipe 1042 connected to the oil cooler 104 are provided on the second side 120 of the first housing 100. The oil cooler 104 is used to achieve heat exchange of the generator cooling oil to reduce the cooling temperature of the cooling oil and improve the cooling efficiency.

[0047] In one embodiment of the present application, a venting channel is provided at the first housing 100 above the motor stator 3, a venting plug 105 is provided at the outlet of the venting channel, and an oil and gas shielding structure is provided at the bottom of the venting channel. The oil and gas shielding structure is provided as a protrusion protruding inward from the inner wall of the venting channel. Since at least a part of the venting channel and the oil and gas shielding structure are provided inside the housing wall of the first housing 100, their structure and shape are not specifically shown in the figure.

[0048] When the generator 10 is running, sometimes the pressure in the accommodation space of the generator housing assembly 1 is too high, which is not conducive to the operation of the generator 10 and the cooling inside the generator 10. The vent channel and the vent plug 105 are designed so that when the gas pressure in the accommodation space is too high, the pressure can be released through the vent plug 105, effectively reducing the pressure in the accommodation space and improving the operation and cooling efficiency of the generator 10. In one embodiment, the oil and gas shielding structure is configured as a protrusion protruding inward from the inner wall of the vent channel, especially a plurality of protrusions arranged in an interlaced manner along the longitudinal direction of the channel. The protrusion only blocks a partial cross-section of the vent channel. Thus, when venting, the gas can overflow through the vent channel to reduce the pressure, and the oil in the gas will contact the protrusion and condense or adhere to the protrusion, preventing the oil from being carried out of the vent channel by the gas, thereby reducing the amount of cooling oil inside the generator 10.

[0049] In one embodiment of the present application, an adapter plate bracket 106 is provided on the first shell 100 for connecting the three-phase electrical interface of the generator to the high-voltage connector 5, and an opening 202 for installing the adapter plate bracket 106 is provided at the corresponding position of the second shell 200 and the adapter plate bracket 106, and the opening 202 is closed by a removable cover 203.

[0050] The high voltage electricity generated by the generator 10 needs to be processed by the high voltage connector 5 and the inverter 6 before being transferred to the battery. Therefore, the three-phase electrical interface of the generator 10 needs to be connected to the high voltage connector 5, especially through the adapter plate bracket 106 arranged on the side of the first shell 100. The adapter plate bracket 106 is similar to the structure of a double-head socket, the output end of the motor coil is connected to one end of the adapter plate bracket 106, the high voltage connector 5 is connected to the other end of the adapter plate bracket 106, and the two ends of the adapter plate bracket 106 are connected by a conductive member arranged inside the adapter plate bracket 106. The adapter plate bracket 106 is installed through an opening 202, such as a U-shaped opening, arranged at a corresponding position of the second shell 200, especially when the generator 10 is installed. Therefore, the adapter plate bracket 106 can be installed from the outside through the opening 202 after the first shell and the second shell are installed. After the adapter plate bracket 106 is installed, the U-shaped opening is closed by the cover plate 203, and the cover plate 203 is installed to the opening 202 by glue-coated bolts, for example, to improve the sealing reliability.

[0051] In one embodiment of the present application, a rotary transformer 204 and a temperature sensor are installed between the bearing support plate 300 and the second housing 200 for detecting and feeding back the motor speed and temperature, so that the cooling system can be controlled more accurately and safely to prevent the generator 10 from overheating.

[0052] In one embodiment of the present application, a suction filter 205 is provided at the lower part of the second housing 200 where the motor stator 3 is located, and an oil drain port 206 is provided below the suction filter 205, and the oil drain port 206 is closed by an oil drain plug 207, and the oil drain plug 207 is, for example, configured as a threaded seal. The suction filter 205 is used to filter the cooling oil to reduce impurities in the cooling oil. In one embodiment, a refueling port (not specifically shown in the figure) is provided at the upper part of the first housing 100 where the motor stator 3 is located, and preferably, the refueling port can be sealed by a threaded seal of the same structure as the oil drain plug 207. The refueling port is used to add cooling oil into the accommodation space, and the oil drain port 206 is used to lead the cooling oil out of the accommodation space.

[0053] In one embodiment of the present application, the generator 10 is cooled by two cooling methods: internal cooling of the motor shaft and spray cooling of the motor shaft. Specifically, a cooling oil channel is provided on the motor rotor 4, and the motor shaft 2 introduces cooling oil into the cooling oil channel of the rotor 4 by stirring the oil, thereby cooling the rotor 4 and the stator 3 of the generator 10. This method is called internal cooling of the motor shaft. Spray cooling of the motor shaft is performed through the spray pipe 102 arranged above the motor stator 3. This combined cooling method is superior to the cooling method of using spray cooling alone, and achieves a better cooling effect.

[0054] In one embodiment of the present application, a hoisting bracket is also provided on the top of the first housing 100 and the second housing 200 to facilitate the assembly and disassembly of the first housing 100 and the second housing 200 during repair. In addition, a suspension interface for the entire vehicle is also designed on the first housing 100.

[0055] Another aspect of the present application provides a vehicle, which includes the generator 10 described above. The generator 10 is installed on an engine block of the vehicle through a first housing 100 .

[0056] It should be understood that the generator 10 of the present application can be installed on various vehicles, including cars, trucks, buses, hybrid vehicles, etc. Therefore, the subject matter of the present application is also intended to protect various vehicles equipped with the generator 10 of the present application.

[0057] It should be understood that all the above preferred embodiments are illustrative rather than restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of the present application should be within the legal protection scope of the present application.

Claims

1. A generator housing assembly, characterized in that: include: A first housing having a first side and a second side opposite to the first side, wherein the first side is connected to the engine cylinder block, a motor stator is fixedly connected to the second side, and a first bearing hole is provided on the first housing for mounting a first bearing of the motor shaft; a second shell, the second shell being connected to the first shell and enclosing a containing space with the first shell; A bearing support plate is fixed to the second housing, and a second bearing hole is provided on the bearing support plate for mounting a second bearing of the motor shaft.

2. The generator housing assembly according to claim 1, characterized in that: A plurality of annular reinforcing ribs are arranged on the second side of the first shell with the first bearing hole as the center, and the first bearing hole is connected to the annular reinforcing ribs in a radial direction through straight reinforcing ribs evenly distributed along the circumference.

3. The generator housing assembly according to claim 1, characterized in that: The second housing has a front side facing the second side and a rear side opposite to the front side, a mounting recess is provided on the front side, a mechanical oil pump is mounted on the second housing through the mounting recess, and the low-pressure and high-pressure oil chambers of the mechanical oil pump are integrated into the second housing.

4. The generator housing assembly according to claim 3, characterized in that: A plurality of annular reinforcing ribs are arranged on the front side of the second shell with the mounting recess as the center, and the mounting recess is connected to the annular reinforcing ribs in a radial direction through straight reinforcing ribs evenly distributed in the circumferential direction.

5. The generator housing assembly according to claim 4, characterized in that: A tic-tac-toe-shaped reinforcement rib is provided on the outer side of the first shell except the first side, and / or a tic-tac-toe-shaped reinforcement rib is provided on the outer side of the second shell except the rear side.

6. The generator housing assembly according to claim 1, characterized in that: A spray pipe for spray cooling of the motor is installed on the first shell. The spray pipe is installed on the first shell through a mounting hole provided on the first shell. A positioning step portion is provided at the mounting hole.

7. The generator housing assembly according to claim 1, characterized in that: An oil cooler and oil inlet and outlet pipes connected to the oil cooler are arranged on the second side of the first shell.

8. The generator housing assembly according to claim 1, characterized in that: A vent channel is arranged above the motor stator in the first shell, a vent plug is arranged at the outlet of the vent channel, and an oil and gas shielding structure is arranged at the bottom of the vent channel. The oil and gas shielding structure is arranged as a protrusion protruding inward from the inner wall of the vent channel.

9. The generator housing assembly according to claim 1, characterized in that: An adapter plate bracket is provided on the first shell for connecting the three-phase electrical interface of the generator to the high-voltage connector, and an opening for installing the adapter plate bracket is provided at the corresponding position of the second shell and the adapter plate bracket, and the opening is closed by a cover plate.

10. The generator housing assembly according to claim 9, characterized in that: A rotary transformer and a temperature sensor are installed between the bearing support plate and the second housing.

11. The generator housing assembly according to claim 1, characterized in that: A suction filter is arranged on the second housing below the motor stator, and an oil drain port is arranged below the suction filter. The oil drain port is closed by an oil drain plug.

12. A generator, characterized in that: A generator housing assembly according to any one of claims 1 to 11 and a motor shaft, a motor stator and a motor rotor installed in the accommodating space, one end of the motor shaft is supported on the first bearing hole through the first bearing, and the other end is supported on the second bearing hole through the second bearing, and the motor stator is fixedly mounted on the first housing.

13. The generator according to claim 12, characterized in that The motor stator is connected to the first housing through six mounting hole bolts evenly arranged along the circumference of the motor stator.

14. The generator according to claim 12, characterized in that A cooling oil channel is provided on the motor rotor to achieve internal cooling of the generator through oil stirring of the motor shaft.

15. A vehicle, characterized in that: The vehicle comprises the generator according to any one of claims 12 to 14, the generator being mounted on an engine block of the vehicle via the first housing.

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