Generator and vehicle

Abstract

The embodiment of the application provides a kind of generator and vehicle, belong to vehicle technical field.The generator includes shell, shell is used to be connected with the piece to be connected, shell has installation cavity in it;Stator winding, stator winding is arranged in installation cavity;Rotor core shaft, rotor core shaft is rotationally arranged in installation cavity, and stator winding is located at the outer circumferential side of rotor core shaft;Iron core assembly, iron core assembly is sleeved on rotor core shaft;Shell is provided with installation port that is communicated with installation cavity, installation port is for iron core assembly to go in and out installation cavity, the end of rotor core shaft towards installation port has first distance with installation port, the end of stator winding towards installation port has second distance with installation port, second distance is greater than first distance.By being set on shell installation port, and adjusting the position of rotor core shaft and stator winding relative to installation port, the assembly of generator can be more simple and smooth.

Description

Technical Field

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

[0002] Range-extended vehicles generate electricity by driving a generator through an engine, and then the generator sends the electrical energy to the drive motor to drive the vehicle.

[0003] In existing technology, the engine and generator are connected, with the generator having a separate stator and rotor structure. The generator's rotor shaft is directly connected to the engine's crankshaft via bolts. During generator assembly, first, an end cover for the generator is installed on the engine, and the rotor shaft is connected to the engine crankshaft; then, the rotor core is assembled onto the rotor shaft; next, the stator windings and housing are covered on the outside of the rotor shaft and rotor core; finally, the side of the housing facing the engine is sealed and connected to the engine using the end cover.

[0004] However, existing generators are inconvenient to assemble. Utility Model Content

[0005] This application provides a generator and a vehicle to solve the problem of inconvenient generator assembly in existing vehicles.

[0006] In a first aspect, embodiments of this application provide a generator, comprising:

[0007] A housing for connecting to a component to be connected, the housing having a mounting cavity inside;

[0008] Stator winding, wherein the stator winding is disposed within the mounting cavity;

[0009] A rotor mandrel is rotatably disposed within the mounting cavity, and the stator winding is located on the outer periphery of the rotor mandrel;

[0010] A core assembly, which is sleeved on the rotor spindle;

[0011] The housing is provided with a mounting port that communicates with the mounting cavity. The mounting port allows the core assembly to enter and exit the mounting cavity. The end of the rotor spindle facing the mounting port has a first distance from the mounting port, and the end of the stator winding facing the mounting port has a second distance from the mounting port. The second distance is greater than the first distance.

[0012] In one possible implementation, the generator provided in this application embodiment includes:

[0013] A core fixing shaft is sleeved on the rotor core shaft;

[0014] The rotor core is sleeved on the core fixing shaft, and the rotor core and the core fixing shaft are axially limited and matched along the rotor core shaft.

[0015] In one possible implementation, the generator provided in this application embodiment has a first limiting part provided on the iron core fixing shaft, and the first limiting part abuts against one of the end face of the rotor iron core facing the mounting port and the end face away from the mounting port.

[0016] The rotor core is provided with a second limiting part, which abuts against the other of the end face of the core fixing shaft facing the mounting port and the end face away from the mounting port.

[0017] In one possible implementation, the generator provided in this application embodiment further includes a limiting member in the core assembly. At least one of the rotor spindle and the core fixing shaft is provided with a limiting groove. The limiting member is disposed in the limiting groove and abuts against the rotor spindle and the core fixing shaft.

[0018] In one possible implementation, the generator provided in this application embodiment has a difference between the second distance and the first distance that is greater than or equal to 3 mm and less than or equal to 7 mm.

[0019] In one possible implementation, the generator provided in this application embodiment further includes an end cover, the housing having a first end and a second end, the mounting port being disposed at the second end, and the end cover being connected to the second end to cover the mounting port;

[0020] The iron core assembly is rotatably connected to the end cap.

[0021] In one possible implementation, the generator provided in this application embodiment further includes a rotary transformer, wherein the core assembly is rotatably connected to the end cover via the rotary transformer, and the rotary transformer is used to detect the rotation parameters of the core assembly.

[0022] In one possible implementation, the generator provided in this application embodiment has a connection port at the first end, the connection port communicating with the mounting cavity, and the first end is configured to cover the connection port through the component to be connected.

[0023] In one possible implementation, the generator provided in this application embodiment further includes a seal, wherein a sealing groove is provided at the first end, and the seal is disposed in the sealing groove, and the seal is used to seal the connection between the first end and the component to be connected.

[0024] Secondly, embodiments of this application provide a vehicle, including a vehicle body and any of the aforementioned generators, wherein the vehicle body has an engine, and the engine is connected to a first end of the generator.

[0025] This application provides a generator and a vehicle. The generator includes a housing, a stator winding, a rotor spindle, and a core assembly. The housing is used to connect to a component to be connected and has an mounting port. Both the stator winding and the rotor spindle are disposed within a mounting cavity, and the first distance between the rotor spindle and the mounting port is smaller than the second distance between the stator winding and the mounting port, making the rotor spindle closer to the mounting port than the stator winding. Therefore, when installing the core assembly onto the rotor spindle, the rotor spindle and the housing connected to the stator winding can be installed first. The core assembly can then be inserted through the mounting port on the side opposite to the component to be connected, and will contact the rotor spindle first, thus achieving initial positioning with the rotor spindle. During subsequent installation, even if a large magnetic force is generated between the core assembly and the stator winding, it will be restricted by the rotor spindle, allowing the core assembly to overcome the magnetic force with the stator winding during installation, thereby preventing the core assembly and stator winding from approaching each other and colliding. Compared to existing technologies, which require the rotor spindle and core to be installed first, and then the housing containing the stator windings to be fitted with tooling, the generator provided in this application provides a simpler and smoother assembly process by opening an installation port on the housing and adjusting the axial position of the rotor spindle and stator windings relative to the installation port, thus eliminating the need for dedicated assembly tooling. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0027] Figure 1 This is a schematic diagram of the generator provided in an embodiment of this application;

[0028] Figure 2 for Figure 1 Assembly diagram of the generator Figure 1 ;

[0029] Figure 3 for Figure 1 Assembly diagram of the generator Figure 2 ;

[0030] Figure 4 for Figure 1 Assembly diagram of the generator Figure 3 ;

[0031] Figure 5 for Figure 1 Assembly diagram of the generator Figure 4 .

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Housing; 110 - First end; 111 - Connection port; 112 - Sealing groove; 120 - Second end; 121 - Mounting port; 130 - Mounting cavity;

[0034] 200 - Stator winding;

[0035] 300 - Rotor mandrel; 310 - Limiting groove; 311 - Limiting component;

[0036] 400 - Core assembly; 410 - Core fixing shaft; 411 - First limiting part; 420 - Rotor core; 421 - Second limiting part;

[0037] 500-End Cap;

[0038] 600-Rotary Transformer;

[0039] 700 - Seals;

[0040] 800 - Part to be connected; 810 - Crankshaft.

[0041] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In the absence of conflict, the following embodiments and features can be combined with each other.

[0043] In existing technology, the engine and generator are connected, and the generator has a separate stator and rotor structure, with both the stator and rotor being detachable and segmented. The generator's rotor shaft is directly connected to the engine's crankshaft via bolts. During generator assembly, first, the generator end cover is installed on the engine, and the rotor shaft is connected to the engine crankshaft; then, the rotor core is assembled onto the rotor shaft; next, the stator windings and housing are covered on the outside of the rotor shaft and rotor core; finally, the side of the housing facing the engine is sealed and connected to the engine via the end cover.

[0044] However, during the assembly of existing generators, the rotor core mounted on the rotor spindle generates a strong magnetic force with the stator windings during assembly. This causes the stator windings to easily collide with the rotor core, resulting in damage to the enameled wire of the stator windings and potentially leading to generator burn-out faults. Therefore, specialized tooling is required for stator winding assembly to prevent collisions between the stator windings and the rotor core, thus complicating generator assembly.

[0045] To overcome the deficiencies in the prior art, this application provides a generator and a vehicle. The generator includes a housing, a stator winding, a rotor spindle, and a core assembly. The housing is used to connect to the component to be connected and has an mounting port. Both the stator winding and the rotor spindle are disposed within a mounting cavity, and the first distance between the rotor spindle and the mounting port is smaller than the second distance between the stator winding and the mounting port, making the rotor spindle closer to the mounting port than the stator winding. Therefore, when installing the core assembly onto the rotor spindle, the rotor spindle and the housing connected to the stator winding can be installed first. The core assembly can then be inserted through the mounting port on the side opposite to the component to be connected, and will contact the rotor spindle first, thus achieving initial positioning with the rotor spindle. During subsequent installation, even if a large magnetic force is generated between the core assembly and the stator winding, it will be restricted by the rotor spindle, allowing the core assembly to overcome the magnetic force with the stator winding during installation, thereby preventing the core assembly and stator winding from approaching each other and colliding. Compared to existing technologies, which require the rotor spindle and core to be installed first, and then the housing containing the stator windings to be fitted with tooling, the generator provided in this application provides a simpler and smoother assembly process by opening an installation port on the housing and adjusting the axial position of the rotor spindle and stator windings relative to the installation port, thus eliminating the need for dedicated assembly tooling.

[0046] The present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the present invention.

[0047] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this application embodiment provides a generator, including:

[0048] The housing 100 is used to connect with the component 800 to be connected, and the housing 100 has a mounting cavity 130 inside;

[0049] Stator winding 200 is disposed within mounting cavity 130;

[0050] The rotor spindle 300 is rotatably disposed within the mounting cavity 130, and the stator winding 200 is located on the outer periphery of the rotor spindle 300.

[0051] Iron core assembly 400, iron core assembly 400 is sleeved on rotor spindle 300;

[0052] The housing 100 is provided with a mounting port 121 that communicates with the mounting cavity 130. The mounting port 121 allows the iron core assembly 400 to enter and exit the mounting cavity 130. The end of the rotor spindle 300 facing the mounting port 121 has a first distance from the mounting port 121, and the end of the stator winding 200 facing the mounting port 121 has a second distance from the mounting port 121. The second distance is greater than the first distance.

[0053] The housing 100 has a first end 110 and a second end 120, and an internal mounting cavity 130. The first end 110 is used to connect with the component 800 to be connected, which means that the generator can be connected and combined with other devices through the first end 110 to achieve specific functions or installation requirements; the second end 120 is provided with a mounting port 121, so that after the first end 110 of the housing 100 is connected with the component 800 to be connected, other components of the generator can also be installed through the mounting port 121 of the second end 120.

[0054] It is understandable that the component to be connected 800 can be an engine, thereby connecting the generator to the engine to form a range extender. The generator is driven by the engine, and the electrical energy generated by the generator is delivered to the vehicle's drive motor, which then drives the vehicle.

[0055] The stator winding 200 is disposed within the mounting cavity 130 and connected to the housing 100, thereby fixing the stator winding 200 inside the generator and forming a relatively stable structure with the housing 100. During actual assembly, the stator winding 200 and the housing 100 can be pre-assembled as a single unit to simplify the generator assembly process.

[0056] The rotor spindle 300 is rotatably mounted within the mounting cavity 130, and along the extending direction of the rotor spindle 300, the first distance between the rotor spindle 300 and the mounting port 121 is less than the second distance between the stator winding 200 and the mounting port 121. This layout design brings the rotor spindle 300 closer to the mounting port 121, facilitating the subsequent installation of the core assembly 400. Specifically, it can be connected to the crankshaft 810 of the engine, thereby driving the rotor spindle 300 to rotate within the mounting cavity 130 via the crankshaft 810.

[0057] The core assembly 400 is configured to be fitted onto the rotor spindle 300 through the mounting port 121. That is, the core assembly 400 is installed by fitting it onto the rotor spindle 300 through the mounting port 121. Both the core assembly 400 and the housing 100 are assembled from the side of the rotor spindle 300 away from the part to be connected 800, so that the assembly direction of the components on the generator is consistent, the assembly consistency is good, it is easy to assemble and disassemble, and it is beneficial to the maintenance and repair of the generator.

[0058] Therefore, the generator provided in this application embodiment includes a housing 100, a stator winding 200, a rotor spindle 300, and a core assembly 400. The first end 110 of the housing 100 is used to connect to the component 800 to be connected, and the second end 120, opposite to the first end 110, has a mounting opening 121. Both the stator winding 200 and the rotor spindle 300 are disposed within a mounting cavity 130, and the first distance between the rotor spindle 300 and the mounting opening 121 is less than the second distance between the stator winding 200 and the mounting opening 121, making the rotor spindle 300 closer to the mounting opening 121 than the stator winding 200. Therefore, when installing the core assembly 400 onto the rotor spindle 300, the rotor spindle 300 and the housing 100 connected to the stator winding 200 can be installed first. The core assembly 400 can be inserted through the mounting port 121 on the side opposite to the part to be connected 800, and will contact the rotor spindle 300 first, thus completing the positioning with the rotor spindle 300. During the subsequent installation process, even if a large magnetic force is generated between the core assembly 400 and the stator winding 200, it will be restricted by the rotor spindle 300, allowing the core assembly 400 to overcome the magnetic force with the stator winding 200 during installation, thereby preventing the core assembly 400 and the stator winding 200 from getting close to each other and colliding. Compared to the prior art, which requires first installing the rotor spindle 300 and the iron core, and then using tooling to mount the housing 100 containing the stator winding 200, the generator provided in this application embodiment can be smoothly assembled without the need for special assembly tooling by opening an installation port 121 on the housing 100 and adjusting the axial position of the rotor spindle 300 and the stator winding 200 relative to the installation port 121, making the generator assembly simpler and smoother.

[0059] In some embodiments, refer to Figure 1 and Figure 5 As shown, the core assembly 400 includes:

[0060] The iron core fixing shaft 410 is sleeved on the rotor core shaft 300;

[0061] The rotor core 420 is sleeved on the core fixing shaft 410, and the rotor core 420 and the core fixing shaft 410 are axially limited and matched along the rotor core shaft 300.

[0062] Before assembling the core fixing shaft 410 with the rotor core 420, it can be pre-assembled with the rotor core 300 to simplify subsequent assembly steps.

[0063] The rotor core 420 and the core fixing shaft 410 are axially positioned along the rotor spindle 300, ensuring the accurate axial positioning of the rotor core 420. During generator operation, the rotor rotates at high speed; this axial positioning prevents axial movement between the rotor core 420 and the core fixing shaft 410, thus avoiding impact on the generator's magnetic field distribution and power generation efficiency, and reducing the likelihood of vibration and noise.

[0064] Furthermore, the core fixing shaft 410 serves to transmit torque and provide support between the rotor spindle 300 and the rotor core 420. During generator operation, the rotational force of the rotor spindle 300 is transmitted to the rotor core 420 through the core fixing shaft 410, enabling the rotor core 420 to rotate stably alongside the rotor spindle 300. Simultaneously, the core fixing shaft 410 also enhances the structural strength of the rotor spindle 300 and provides radial and axial support to the rotor core 420, thereby improving the structural stability of the entire core assembly 400 and reducing the possibility of damage to the rotor core 420 caused by vibration and centrifugal force.

[0065] In some embodiments, refer to Figure 1 , Figure 4 and Figure 5 As shown, a first limiting part 411 is provided on the iron core fixing shaft 410, and the first limiting part 411 abuts against one of the end face of the rotor iron core 420 facing the mounting port 121 and the end face away from the mounting port 121.

[0066] A second limiting part 421 is provided on the rotor core 420, and the second limiting part 421 abuts against the other of the end face of the core fixing shaft 410 facing the mounting port 121 and the end face away from the mounting port 121.

[0067] In this way, the relative position between the rotor core 420 and the core fixing shaft 410 can be positioned in the axial direction. This ensures that the rotor core 420 is accurately installed on the core fixing shaft 410 and avoids unnecessary axial displacement of the rotor core 420.

[0068] Furthermore, by restricting the axial displacement of the rotor core 420, friction and collision caused by axial movement between the rotor core 420 and the core fixing shaft 410 are avoided, reducing wear between components and extending the service life of the equipment.

[0069] For example, as in this embodiment, the first limiting part 411 may abut against the end face of the rotor core 420 facing the second end 120, and the second limiting part 421 may abut against the end face of the core fixing shaft 410 facing the first end 110. In other embodiments, the first limiting part 411 may abut against the end face of the rotor core 420 facing the first end 110, and the second limiting part 421 may abut against the end face of the core fixing shaft 410 facing the second end 120. Furthermore, the first limiting part 411 may be a stepped surface extending radially along the core fixing shaft 410, and the second limiting part 421 may also be a stepped surface extending radially along the rotor core 420; this application does not impose any limitations on this.

[0070] Furthermore, in some embodiments, reference is made to Figure 1 , Figure 2 and Figure 3 As shown, the core assembly 400 also includes a limiting member 311. At least one of the rotor spindle 300 and the core fixing shaft 410 is provided with a limiting groove 310. The limiting member 311 is disposed in the limiting groove 310 and abuts against the rotor spindle 300 and the core fixing shaft 410.

[0071] For example, a limiting groove 310 is provided on the outer periphery of the rotor spindle 300, and a limiting member 311 is installed in the limiting groove 310 and abuts against the inner side wall of the iron core fixing shaft 410. This can accurately limit the relative position of the two in the axial direction, ensuring that the rotor spindle 300 and the iron core fixing shaft 410 will not have unnecessary displacement in the axial direction, thereby ensuring the overall stability of the iron core assembly 400.

[0072] Meanwhile, the limiting component 311 is typically an elastic component, such as a rubber or resin component. Therefore, when setting the limiting component 311, factors such as the matching clearance and tolerance between the iron core fixed shaft 410 and the rotor core shaft 300, the generator's maximum internal operating temperature requirements, and the generator's component lifespan requirements can be considered to ensure the limiting component 311 is well-suited for the generator. Furthermore, the elastic limiting component 311 effectively buffers vibrations during high-speed generator operation, improving the generator's operational stability.

[0073] In some embodiments, refer to Figure 3 As shown, the difference between the second distance D2 and the first distance D1 (D2-D1) is greater than or equal to 3mm and less than or equal to 7mm.

[0074] It is understandable that setting the difference between the second distance D2 and the first distance D1 (D2-D1) to be greater than or equal to 3mm provides sufficient space for the core fixing shaft 410 to be positioned with the rotor spindle 300 through the mounting port 121. This avoids interference or collision between the core assembly 400 and the stator winding 200 due to insufficient positioning of the core fixing shaft 410 by the rotor spindle 300 during installation. This ensures that the core fixing shaft 410 of the core assembly 400 can be successfully positioned with the rotor spindle 300 first, and then fitted onto the rotor spindle 300 under the positioning and guiding effect of the rotor spindle 300, without assembly misalignment caused by the mutual influence between the rotor core 420 and the stator winding 200.

[0075] Meanwhile, setting the difference between the second distance D2 and the first distance D1 (D2-D1) to be less than or equal to 7mm ensures that after the core assembly 400 and rotor spindle 300 are positioned, the change in magnetic force is relatively gradual as the core assembly 400 continues to be fitted into the stator winding 200, thus reasonably controlling the range of magnetic force exerted by the stator winding 200 on the core assembly 400. If the difference is too large, the core assembly 400 may initially experience less magnetic force due to its distance from the stator winding 200 during the fitting process, but then be subjected to a sudden increase in magnetic force upon approaching, causing the core assembly 400 to rapidly approach the stator winding 200 and collide with it.

[0076] Meanwhile, limiting the difference (D2-D1) to less than or equal to 7mm can also effectively limit the relative length of the rotor spindle 300 and the stator winding 200, preventing the rotor spindle 300 from being too long and occupying too much space in the mounting cavity 130, thus affecting the compactness of the generator structure. At the same time, it can also prevent the stability of the rotor spindle 300 from decreasing when rotating due to excessive length.

[0077] In practice, the difference between the second distance D2 and the first distance D1 (D2-D1) can be set to 5mm.

[0078] In some embodiments, reference is made to Figure 1 and Figure 5 As shown, the generator also includes an end cover 500. The housing has a first end 110 and a second end 120. A mounting port 121 is disposed on the second end 120. The end cover 500 is connected to the second end 120 to cover the mounting port 121.

[0079] The iron core assembly 400 is rotatably connected to the end cap 500.

[0080] In practical implementation, the end cap structure at the first end 110 can be omitted, allowing the first end 110 to be directly and sealed to the component 800 to be connected. An end cap 500 is then installed at the second end 120, forming a stator assembly together with the housing 100 and the stator winding 200. The end cap 500 seals the mounting opening 121, ensuring the mounting cavity 130 is relatively closed, preventing dust, moisture, and other impurities from entering the generator. This effectively extends the service life of the generator components and improves the generator's reliability and stability. To ensure the sealing of the connection between the end cap 500 and the second end 120, adhesive can be applied to the connection point.

[0081] Meanwhile, the core assembly 400 is rotatably connected to the end cover 500, which provides a stable support point for the core assembly 400, ensuring its stability during rotation and reducing vibration and noise. Furthermore, the rotor spindle 300 is connected to the component 800 on the side facing the first end 110, and further rotatably connected to the end cover 500 on the side facing the second end 120. The end cover 500 is also connected to the component 800 via the housing 100, thus ensuring the axial position stability of the core assembly 400 and ensuring a uniform axial gap between the core assembly 400 and the stator winding 200.

[0082] In order to ensure the reliability and stability of the connection between the rotor spindle 300 and the end cover 500 through the iron core fixing shaft 410, the rotor spindle 300 can be made of a high-strength material. The shaft strength simulation and radial runout simulation of the rotor spindle 300 are performed. This application does not limit the specific material of the rotor spindle 300.

[0083] In some embodiments, refer to Figure 1 and Figure 5 As shown, the generator also includes a rotary transformer 600. The core assembly 400 is rotatably connected to the end cover 500 through the rotary transformer 600, and the rotary transformer 600 is used to detect the rotation parameters of the core assembly 400.

[0084] The rotary transformer 600 is an electromagnetic induction precision sensor used to detect the position, angle, or speed of rotating machinery (such as the core fixed shaft 410 of a generator). Through the rotary transformer 600, the rotational parameters (such as speed and angle) of the core assembly 400 can be accurately detected, allowing the control system to dynamically adjust the generator's operating mode according to the actual load conditions. This ensures the generator always operates at an appropriate efficiency, outputting stable voltage and frequency to meet the needs of different electrical devices. The rotary transformer 600 has a structure similar to a small electric motor, also including a stator, rotor, and windings. The stator is fixed to the end cover 500, the rotor is coaxially connected to the core fixed shaft 410, and the windings are wound on the stator and rotor.

[0085] In this way, the bearing structure between the end cover 500 and the iron core fixing shaft 410 is eliminated, thereby avoiding the problem of abnormal noise from the bearing at the second end 120 when the rotor spindle 300 rotates. At the same time, the smoothness of the rotor spindle 300 rotation is ensured by the rotary transformer 600.

[0086] In practice, after the core fixing shaft 410 is sleeved on the rotor spindle 300, the core fixing shaft 410 and the rotor spindle 300 are fixed together by bolts. To ensure this, a gap must be maintained between the bolts fixing the core fixing shaft 410 and the rotor spindle 300 and the rotary transformer 600 to prevent them from colliding with each other. This gap can be 5mm.

[0087] Furthermore, in some embodiments, to achieve a reliable connection between the first end 110 and the component to be connected 800, reference is made to... Figure 1 and Figure 3 As shown, the first end 110 has a connection port 111, which connects to the mounting cavity 130. The first end 110 is configured to cover the connection port 111 through the component to be connected 800.

[0088] By sealing the connection port 111 of the component to be connected 800, a tight and stable connection can be formed between the first end 110 of the generator and the component to be connected 800. This eliminates the need for an additional end cap structure between the component to be connected 800 and the first end 110 of the generator. The first end 110 of the generator can be directly connected to the component to be connected by bolts, which increases the contact area and connection strength between the two, simplifies the connection structure, and simplifies the assembly steps.

[0089] Furthermore, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the generator also includes a seal 700. A sealing groove 112 is provided at the first end 110, and the seal 700 is disposed in the sealing groove 112. The seal 700 is used to seal the connection between the first end 110 and the component 800 to be connected.

[0090] The sealing groove 112 is located on the end face of the first end 110 facing the component 800 to be connected, and surrounds the connection port 111. The sealing element 700 is embedded in the sealing groove 112. By setting the sealing element 700 between the generator and the component 800 to be connected, the sealing performance of the connection between the generator and the component 800 to be connected is ensured.

[0091] Meanwhile, the seal 700 usually has a certain degree of elasticity, which can play a buffering role to reduce the relative displacement and wear between the first end 110 and the part to be connected 800 caused by vibration and impact.

[0092] Furthermore, during the installation of the generator and the component to be connected 800, the seal 700 can compensate for the assembly error between the generator and the component to be connected 800 through its own elastic deformation, so that the first end 110 and the component to be connected 800 can achieve good fit and sealing, thereby improving the reliability of the connection.

[0093] The following describes the assembly steps of the generator relative to the component 800, using the component to be connected as the engine:

[0094] Step 1: Refer to Figure 2 As shown, the generator rotor spindle 300 is connected to the engine crankshaft 810 by bolts.

[0095] Step Two: Refer to Figure 3 As shown, the seal 700 is pre-assembled into the sealing groove 112 of the first end 110 of the housing 100;

[0096] Step 3: Refer to Figure 3 As shown, the housing 100, to which the stator winding 200 is pre-fixed, is connected to the engine by bolts, and the seal 700 seals the housing 100 and the first end 110.

[0097] Step Four: Refer to Figure 4 As shown, the core fixing shaft 410, on which the rotor core 420 is pre-fixed, is positioned and sleeved on the rotor core shaft 300 through the mounting port 121, and the rotor core shaft 300 and the core fixing shaft 410 are fastened together by bolts.

[0098] Step 5: Refer to Figure 5 As shown, the end cap 500 is assembled to the second end 120 of the housing 100, and adhesive is applied between the end cap 500 and the second end 120 for sealing.

[0099] This application also provides a vehicle, including a vehicle body and any of the above-mentioned generators, the vehicle body having an engine, the engine being connected to the first end 110 of the generator.

[0100] The engine is connected to the first end 110 of the generator, thus allowing the engine to be used as the connecting component 800. The generator has been described in detail in the above embodiments and will not be repeated here.

[0101] The vehicle provided in this application embodiment includes a generator, which includes a housing 100, a stator winding 200, a rotor spindle 300, and a core assembly 400. A first end 110 of the housing 100 is used to connect to a component 800 to be connected, and a second end 120 opposite to the first end 110 has a mounting opening 121. Both the stator winding 200 and the rotor spindle 300 are disposed within a mounting cavity 130, and a first distance between the rotor spindle 300 and the mounting opening 121 is less than a second distance between the stator winding 200 and the mounting opening 121, such that the rotor spindle 300 is closer to the mounting opening 121 than the stator winding 200. Therefore, when installing the core assembly 400 onto the rotor spindle 300, the rotor spindle 300 and the housing 100 connected to the stator winding 200 can be installed first. The core assembly 400 can be inserted through the mounting port 121 on the side opposite to the part to be connected 800, and will contact the rotor spindle 300 first, thus completing the positioning with the rotor spindle 300. During the subsequent installation process, even if a large magnetic force is generated between the core assembly 400 and the stator winding 200, it will be restricted by the rotor spindle 300, allowing the core assembly 400 to overcome the magnetic force with the stator winding 200 during installation, thereby preventing the core assembly 400 and the stator winding 200 from getting close to each other and colliding. Compared to the prior art, which requires first installing the rotor spindle 300 and the iron core, and then using tooling to mount the housing 100 containing the stator winding 200, the generator provided in this application embodiment can be smoothly assembled without the need for special assembly tooling by opening an installation port 121 on the housing 100 and adjusting the axial position of the rotor spindle 300 and the stator winding 200 relative to the installation port 121, making the generator assembly simpler and smoother.

[0102] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0103] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0104] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0105] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90° or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0106] 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 it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A generator, characterized in that, include: A housing (100) is used to connect to a component (800) to be connected, and the housing (100) has a mounting cavity (130). Stator winding (200), the stator winding (200) is disposed in the mounting cavity (130); A rotor spindle (300) is rotatably disposed within the mounting cavity (130), and the stator winding (200) is located on the outer periphery of the rotor spindle (300). A core assembly (400) is sleeved on the rotor spindle (300); The housing (100) is provided with a mounting port (121) communicating with the mounting cavity (130). The mounting port (121) allows the core assembly (400) to enter and exit the mounting cavity (130). The end of the rotor spindle (300) facing the mounting port (121) has a first distance from the mounting port (121), and the end of the stator winding (200) facing the mounting port (121) has a second distance from the mounting port (121). The second distance is greater than the first distance.

2. The generator according to claim 1, characterized in that, The core assembly (400) includes: A core fixing shaft (410) is sleeved on the rotor core shaft (300); The rotor core (420) is sleeved on the core fixing shaft (410), and the rotor core (420) and the core fixing shaft (410) are axially limited and matched along the rotor core shaft (300).

3. The generator according to claim 2, characterized in that, A first limiting part (411) is provided on the iron core fixing shaft (410), and the first limiting part (411) abuts against one of the end face of the rotor iron core (420) facing the mounting port (121) and the end face away from the mounting port (121). The rotor core (420) is provided with a second limiting part (421), which abuts against the other of the end face of the core fixing shaft (410) facing the mounting port (121) and the end face away from the mounting port (121).

4. The generator according to claim 2, characterized in that, The core assembly (400) further includes a limiting member (311), at least one of the rotor spindle (300) and the core fixing shaft (410) is provided with a limiting groove (310), the limiting member (311) is disposed in the limiting groove (310) and abuts against the rotor spindle (300) and the core fixing shaft (410).

5. The generator according to any one of claims 1-4, characterized in that, The difference between the second distance and the first distance is greater than or equal to 3mm and less than or equal to 7mm.

6. The generator according to any one of claims 1-4, characterized in that, It also includes an end cap (500), the housing having a first end (110) and a second end (120), the mounting port (121) being disposed at the second end (120), and the end cap (500) being connected to the second end (120) to cover the mounting port (121). The core assembly (400) is rotatably connected to the end cap (500).

7. The generator according to claim 6, characterized in that, It also includes a rotary transformer (600), through which the core assembly (400) is rotatably connected to the end cap (500), and the rotary transformer (600) is used to detect the rotation parameters of the core assembly (400).

8. The generator according to claim 6, characterized in that, The first end (110) has a connection port (111) that communicates with the mounting cavity (130), and the first end (110) is configured to cover the connection port (111) through the component to be connected (800).

9. The generator according to claim 8, characterized in that, It also includes a sealing element (700), the first end (110) is provided with a sealing groove (112), the sealing element (700) is disposed in the sealing groove (112), and the sealing element (700) is used to seal the connection between the first end (110) and the part to be connected (800).

10. A vehicle, characterized in that, The vehicle includes a vehicle body and a generator as described in any one of claims 1-9, the vehicle body having an engine connected to a first end (110) of the generator.

Images