Flywheel, transmission assembly, range extending system and vehicle

Abstract

The utility model relates to a flywheel, a transmission assembly, a range extending system and a vehicle. The flywheel comprises a disc body and a first vibration absorption structure. The first vibration absorption structure comprises a vibration part and an elastic part. The vibration part is connected to the disc body through the elastic part. According to the flywheel, on the basis that speed fluctuation in the engine running process is reduced, vibration generated when the crankshaft of the engine rotates can be absorbed from the source through the additionally-arranged first vibration absorption structure, then the shafting safety is protected, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicle vibration reduction, and in particular to a flywheel, a transmission assembly, a range-extending system and a vehicle. Background Art

[0002] The rapid development of the automobile industry has greatly promoted economic growth and improved people's living standards. However, the accompanying energy crisis and environmental pollution problems are also becoming increasingly serious, forcing the automotive power system to continuously upgrade and transform its technology. Extended-range electric vehicles came into being in this context. The extended-range mode of electric vehicles usually uses the engine as a range extender to drive the generator to rotate and generate electricity to store energy, thereby achieving the purpose of increasing the mileage of electric vehicles.

[0003] In the related art, the engine is usually connected to the generator through a flywheel and a torsional vibration damper. The torsional vibration damper mostly relies on damping devices such as springs and rubber to reduce the vibration generated when the engine is running, that is, through the compression and deformation of the damping spring or rubber, the mechanical energy is converted into heat energy, thereby effectively suppressing the amplitude of the torsional vibration. However, this design often leads to a complex structure and increased costs. In addition, this vibration reduction method is not easy to achieve the purpose of absorbing the vibration generated by the engine crankshaft during rotation from the source. Utility Model Content

[0004] The purpose of the present disclosure is to provide a flywheel, a transmission assembly, a range-extending system and a vehicle, so as to absorb the vibration generated by the crankshaft of the engine during rotation from the source, thereby protecting the safety of the shaft system, and having a simple structure and low cost, so as to at least partially solve the related technical problems.

[0005] In order to achieve the above-mentioned object, according to a first aspect of the present disclosure, a flywheel is provided. The flywheel comprises:

[0006] Plate; and

[0007] The first vibration absorbing structure includes a vibration part and an elastic part, and the vibration part is connected to the disk body through the elastic part.

[0008] Optionally, the disk body has a weight-reducing gap, the vibration part and the elastic part are located in the weight-reducing gap, and the vibration part is connected to a side wall of the weight-reducing gap through the elastic part.

[0009] Optionally, a lifting lug connected to the elastic part is provided on the side wall of the weight-reducing gap.

[0010] Optionally, the disk body includes a first connecting ring, a second connecting ring and a connecting piece, the second connecting ring is located on the inner side of the first connecting ring and is arranged coaxially with the first connecting ring, the connecting piece is connected between the first connecting ring and the second connecting ring, and the gap formed between the first connecting ring and the second connecting ring forms the weight reduction gap.

[0011] Optionally, there are a plurality of the connecting members and the connecting members are arranged at intervals along the circumference of the disk body, and at least one of the first vibration absorbing structures is provided between any two adjacent connecting members in the circumferential direction.

[0012] Optionally, there are multiple elastic parts and they are arranged around the circumference of the vibration part. One end of the elastic part is connected to the vibration part, and the other end is connected to the disk body.

[0013] Optionally, the elastic part is a spring.

[0014] According to a second aspect of the present disclosure, a transmission assembly is provided. The transmission assembly comprises:

[0015] The flywheel described above, wherein the flywheel disc is connected to the crankshaft of the engine; and

[0016] A transmission structure, wherein the flywheel is connected to the drive shaft of the generator through the transmission structure.

[0017] Optionally, the transmission structure includes:

[0018] A gear ring connected to the disc body and arranged coaxially with the disc body;

[0019] A support plate connected to the crankshaft, the support plate is located inside the plate body and is coaxially arranged with the plate body, and a track extending in the circumferential direction is formed between the support plate and the plate body;

[0020] an electromagnet, at least partially located in the track and capable of being magnetically attracted to the support disk and / or the disk body, wherein the electromagnet can move along the track under the action of an external force in an attracted state;

[0021] an intermediate gear connected to the electromagnet and capable of rotating around its own axis relative to the electromagnet; and

[0022] The main gear is connected to the support disk and can rotate around its own axis relative to the support disk. The intermediate gear is meshed and connected between the main gear and the ring gear. The main gear is connected to the drive shaft of the generator to rotate synchronously with the drive shaft.

[0023] Optionally, the intermediate gear includes a first shaft segment and a first tooth portion connected to the first shaft segment, a first bearing located between the first shaft segment and the electromagnet is sleeved on the first shaft segment, and the first tooth portion is meshingly connected between the main gear and the ring gear.

[0024] Optionally, a limiting portion is provided on a side of the first shaft segment facing away from the first tooth portion, and the first bearing and the electromagnet are stopped at the limiting portion.

[0025] Optionally, the main gear includes a second tooth portion, a second shaft section and a sleeve portion, the second shaft section and the sleeve portion are respectively connected to both sides of the second tooth portion, the second tooth portion is used to engage with the intermediate gear, the second shaft section is sleeved with a second bearing located between the second shaft section and the support plate, and the inner wall of the sleeve portion is provided with a spline connected to the drive shaft of the generator.

[0026] Optionally, an installation space and a second vibration absorbing structure located in the installation space are provided on the gear ring, and the second vibration absorbing structure includes a vibration absorbing spring extending in the circumferential direction, and the vibration absorbing spring is sleeved on a guide rod located in the installation space.

[0027] Optionally, adjusting members are respectively provided on both sides of the vibration absorbing spring along the circumferential direction, and the adjusting members are adjustably connected to the guide rod along the circumferential direction.

[0028] Optionally, a buffer pad sleeved on the guide rod is provided between the vibration absorbing spring and the adjusting member.

[0029] According to a third aspect of the present disclosure, a range-extending system is provided, which includes an engine, a generator, and the transmission assembly described above, wherein the engine is connected to the generator via the transmission assembly.

[0030] According to a fourth aspect of the present disclosure, a vehicle is provided, which includes the above-mentioned range-extending system.

[0031] Through the above technical scheme, namely, a flywheel, a transmission assembly, a range-extending system and a vehicle. Among them, the flywheel includes a disc body and a first vibration-absorbing structure. The vibration part of the first vibration-absorbing structure is connected to the disc body through an elastic part. When assembled, the flywheel is connected to the crankshaft of the engine. In this way, when the crankshaft of the engine is rotating, under the action of excitation, it can simultaneously drive the first vibration-absorbing structure to vibrate, and the inertial force generated by the first vibration-absorbing structure reacts to the crankshaft, and the inertial force is tuned so that it reacts to the vibration of the crankshaft, thereby achieving the purpose of reducing the vibration energy of the engine, that is, it can be understood that the first vibration-absorbing structure and the disc body together constitute, for example, a dynamic vibration-absorbing structure, which can at least partially convert the vibration energy of the crankshaft into the vibration energy of the first vibration-absorbing structure, thereby achieving the purpose of absorbing the vibration energy of the crankshaft and reducing the vibration energy of the crankshaft. The flywheel provided by the present disclosure can not only reduce the speed fluctuation during the operation of the engine, but also absorb the vibration generated by the crankshaft of the engine from the source through the additional first vibration-absorbing structure, reduce the torsional amplitude, and thus protect the safety of the shaft system, and has a simple structure and low cost.

[0032] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0034] Figure 1 is a schematic structural diagram of a flywheel provided according to an embodiment of the present disclosure;

[0035] Figure 2 yes Figure 1 The enlarged schematic diagram of point A in the middle;

[0036] Figure 3 is a first structural schematic diagram of a transmission assembly provided according to an embodiment of the present disclosure;

[0037] Figure 4 is a second structural schematic diagram of a transmission assembly provided according to an embodiment of the present disclosure;

[0038] Figure 5 is a schematic structural diagram of a gear ring provided according to an embodiment of the present disclosure;

[0039] Figure 6 yes Figure 5 The enlarged schematic diagram of point B in the middle;

[0040] Figure 7 is a schematic diagram of assembling an electromagnet and an intermediate gear according to an embodiment of the present disclosure;

[0041] Figure 8 It is a schematic structural diagram of a limiting portion of an intermediate gear provided according to an embodiment of the present disclosure.

[0042] Description of Reference Numerals

[0043] 100. Transmission assembly;

[0044] 10. Flywheel;

[0045] 101, disk body; 1011, weight-reducing gap; 1012, first connecting ring; 1013, second connecting ring; 1014, connecting piece;

[0046] 102, first vibration absorbing structure; 1021, vibration part; 1022, elastic part; 1023, hanging ear;

[0047] 20. Transmission structure;

[0048] 201, gear ring; 2011, installation space; 2012, second vibration absorbing structure; 2012a, vibration absorbing spring; 2012b, guide rod; 2012c, adjustment member; 2012d, buffer pad;

[0049] 202, support plate;

[0050] 203, track;

[0051] 204. Electromagnet;

[0052] 205, intermediate gear; 2051, first shaft section; 2052, first tooth portion; 2053, first bearing; 2054, limiting portion;

[0053] 206, main gear; 2061, second shaft section; 2062, second tooth portion; 2063, second bearing; 2064, sleeve portion. DETAILED DESCRIPTION

[0054] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0055] In the present disclosure, unless otherwise specified, “inside and outside” refer to the inside and outside of the corresponding component outline; in addition, it should be noted that the terms used, such as “first, second”, etc., are used to distinguish one element from another.

[0056] According to the first aspect of the present disclosure, Figure 1 and Figure 2As shown, a flywheel 10 is provided. The flywheel 10 may include a disk body 101 and a first vibration absorbing structure 102. The first vibration absorbing structure 102 may include a vibration part 1021 and an elastic part 1022. The vibration part 1021 is connected to the disk body 101 through the elastic part 1022.

[0057] The flywheel 10 provided by the technical solution of the present disclosure can be connected to the crankshaft of the engine during assembly. In this way, when the crankshaft of the engine rotates, under the action of excitation, it can simultaneously drive the first vibration absorbing structure 102 to vibrate, and the inertial force generated by the first vibration absorbing structure 102 reacts to the crankshaft, and the inertial force is tuned so that it reacts to the vibration of the crankshaft, thereby achieving the purpose of reducing the vibration energy of the engine, that is, it can be understood that the first vibration absorbing structure 102 and the disk body 101 together constitute, for example, a dynamic vibration absorbing structure, which can convert the vibration energy of the crankshaft at least partially into the vibration energy of the first vibration absorbing structure 102, thereby absorbing the vibration energy of the crankshaft and reducing the vibration energy of the crankshaft. The flywheel 10 provided by the present disclosure can, on the basis of reducing the speed fluctuation during the operation of the engine, absorb the vibration generated by the crankshaft of the engine from the source through the additional first vibration absorbing structure 102, reduce the torsional amplitude, and thus protect the safety of the shaft system, and has a simple structure and low cost.

[0058] In some embodiments, Figure 1 and Figure 2 As shown, the disk body 101 has a weight-reducing gap 1011. The setting of the weight-reducing gap 1011 can reasonably balance the relationship between the output torque stability of the engine and the corresponding speed. It is not difficult to understand that a larger moment of inertia of the flywheel 10 will make the output torque of the engine smoother and the speed more stable. However, the moment of inertia of the flywheel 10 cannot be too large. If the inertia is large, the mass of the flywheel 10 will also increase, the engine starting power demand will increase, and the responsiveness of the engine torque output will also deteriorate. Therefore, in the technical solution provided by the present disclosure, the weight-reducing gap 1011 is reasonably designed on the disk body 101 of the flywheel 10, so that a larger moment of inertia can be obtained under a relatively small mass of the flywheel 10.

[0059] Further, the vibration part 1021 and the elastic part 1022 may be located in the weight-reducing gap 1011. The vibration part 1021 is connected to the side wall of the weight-reducing gap 1011 through the elastic part 1022. The first vibration absorbing structure 102 is arranged in the weight-reducing gap 1011, so that the structure of the disc body 101 can be reasonably utilized to avoid increasing the thickness of the flywheel 10.

[0060] In some embodiments, Figure 1 and Figure 2As shown, a lug 1023 connected to the elastic part 1022 is provided on the side wall of the weight-reducing gap 1011. The setting of the lug 1023 can provide a more reliable installation position for the elastic part 1022 of the first vibration absorbing structure 102. In addition, the setting of the lug 1023 also facilitates the assembly and disassembly of the first vibration absorbing structure 102, and facilitates later maintenance and replacement. Of course, it can be understood that the connection method between the first vibration absorbing structure 102 and the weight-reducing gap 1011 can also be welding, bolt connection, etc., which is not limited here, and those skilled in the art can make design adjustments according to actual conditions.

[0061] In some embodiments, Figure 1 and Figure 2 As shown, the disc body 101 may include a first connecting ring 1012, a second connecting ring 1013 and a connecting piece 1014. The second connecting ring 1013 is located at the inner side of the first connecting ring 1012 and is arranged coaxially with the first connecting ring 1012. The connecting piece 1014 is connected between the first connecting ring 1012 and the second connecting ring 1013. The gap formed between the first connecting ring 1012 and the second connecting ring 1013 forms a weight-reducing gap 1011. This method of forming the weight-reducing gap 1011 is simple and easy to operate.

[0062] In some embodiments, Figure 1 and Figure 2 As shown, the number of the connecting members 1014 can be multiple and arranged at intervals along the circumference of the disk body 101. At least one first vibration absorbing structure 102 is arranged between any two adjacent connecting members 1014. In this way, a weight reduction space can be uniformly formed in the circumference of the disk body 101 through the connecting members 1014. Furthermore, the first vibration absorbing structures 102 can also be arranged at intervals along the circumference of the disk body 101, so as to achieve uniform and reliable absorption of the vibration energy of the crankshaft and protect the safety of the shaft system.

[0063] In some embodiments, Figure 1 and Figure 2 As shown, the number of elastic parts 1022 is multiple and they are arranged circumferentially around the vibration part 1021. One end of the elastic part 1022 is connected to the vibration part 1021, and the other end is connected to the disk body 101. Such an arrangement enables the vibration part 1021 to uniformly and reliably absorb the vibration energy of the crankshaft when it is connected to the disk body 101 through the elastic part 1022. It should be noted here that the vibration part 1021 can be constructed as a mass block. The elastic part 1022 can be a spring. The first vibration absorbing structure 102 composed of a spring and a mass block in this form has a simple structure, reliable use, and low cost. Of course, it can be understood that the elastic part 1022 can also be other forms such as metal shrapnel, rubber strips, etc., which are not limited here, and those skilled in the art can choose according to actual conditions.

[0064] According to a second aspect of the present disclosure, Figure 3 and Figure 4 As shown, a transmission assembly 100 is provided. The transmission assembly 100 may include the flywheel 10 and the transmission structure 20. The disk 101 of the flywheel 10 is connected to the crankshaft of the engine. The flywheel 10 is connected to the drive shaft of the generator through the transmission structure 20. The engine can stably and reliably drive the generator to rotate through the transmission assembly 100 integrated with the flywheel 10, so that the generator can perform reliable power generation.

[0065] In some embodiments, Figure 3 and Figure 4 As shown, the transmission structure 20 may include a ring gear 201, a support disc 202, an electromagnet 204, an intermediate gear 205 and a main gear 206. The ring gear 201 is connected to the disc body 101 and is arranged coaxially with the disc body 101. The support disc 202 is connected to the crankshaft. The support disc 202 is located on the inner side of the disc body 101 and is arranged coaxially with the disc body 101. A track 203 extending in the circumferential direction is formed between the support disc 202 and the disc body 101. The electromagnet 204 is at least partially located in the track 203 and can be magnetically attracted to the support disc 202 and / or the disc body 101. The electromagnet 204 can move along the track 203 under the action of an external force in the adsorption state. The intermediate gear 205 is connected to the electromagnet 204 and can rotate around its own axis relative to the electromagnet 204. The main gear 206 is connected to the support disc 202 and can rotate around its own axis relative to the support disc 202. The intermediate gear 205 is meshedly connected between the main gear 206 and the ring gear 201. The main gear 206 is connected to the driving shaft of the generator to rotate synchronously with the driving shaft.

[0066] It can be understood that the disk body 101 of the flywheel 10 includes a first connecting ring 1012 and a second connecting ring 1013. The ring gear 201 can be connected to the first connecting ring 1012 of the disk body 101 to achieve a coaxial arrangement with the disk body 101. The support disk 202 can be located inside the second connecting ring 1013 and coaxially arranged with the second connecting ring 1013 of the disk body 101. During assembly, with the flywheel 10 as the boundary, the engine is located on the side of the flywheel 10 where the ring gear 201 is not installed, and the outer side of the crankshaft of the engine can be connected to the first connecting ring 1012 of the disk body 101 of the flywheel 10, and the inner side of the crankshaft can be connected to the support disk 202, wherein the radial size of the end of the existing crankshaft is adjusted so that the crankshaft can be connected to the first connecting ring 1012 and the support disk 202, and the crankshaft and the first connecting ring 1012 or the support disk 202 can be connected by existing methods such as bolts, etc., and the present disclosure is not limited thereto. The generator is located on one side of the flywheel 10 where the gear ring 201 is installed, and the drive shaft of the generator is connected to the main gear 206 .

[0067] In this embodiment, the gear ring 201, the main gear 206 and the intermediate gear 205 are meshed with each other, so that the torque of the engine can be reliably transmitted to the generator. In addition, it should be noted that since the optimal efficiency speed zone of the generator and the engine is inconsistent, the optimal efficiency speed zone of the engine is usually lower than the optimal speed zone of the generator. Therefore, in the process of the engine driving the generator to rotate and generate electricity, in order to make the engine and the generator both in the optimal speed zone to achieve the purpose of efficient power generation, the generator needs to be increased in speed accordingly. In the transmission assembly 100 provided in the present application, the purpose of increasing the speed of the generator rotation can be achieved by controlling the electromagnet 204 connected to the intermediate gear 205.

[0068] In order to enable those skilled in the art to better understand the speed increase process of the transmission assembly 100 of the present application, the following will be described in detail:

[0069] Specifically, when the generator needs to generate electricity, the electromagnet 204 is controlled to be magnetically attracted to the support disk 202 and / or the disk body 101, and the crankshaft of the engine rotates, which can transfer the torque to the flywheel 10. The flywheel 10 can further transfer the torque to the ring gear 201, and the ring gear 201 can further transfer the torque of the engine to the intermediate gear 205, and transfer the torque to the main gear 206 through the rotation of the intermediate gear 205. The main gear 206 can finally transfer the torque to the drive shaft of the generator. Since the number of teeth of the ring gear 201 is greater than the number of teeth of the main gear 206, the ring gear 201 transfers the torque to the main gear 206, which is the process of increasing the speed of the generator. In addition, it should be noted that during the starting stage of the engine, the electromagnet 204 can be controlled to be magnetically attracted to the support disk 202 and / or the disk body 101, and the drive shaft of the generator can rotate, so that the torque can be transferred from the main gear 206 to the intermediate gear 205, and the torque can be transferred to the ring gear 201 through the rotation of the intermediate gear 205. The ring gear 201 can eventually transfer the torque to the crankshaft of the engine through the flywheel 10. Since the number of teeth of the ring gear 201 is greater than the number of teeth of the main gear 206, the main gear 206 transfers the torque to the ring gear 201, thereby realizing the engine starting process of deceleration and torque increase.

[0070] In addition, it is worth noting that when the engine is connected to the generator through the transmission assembly 100 to increase the speed, more vibrations will inevitably be generated. At this time, the flywheel 10 provided by the present application is adopted. Since the first vibration absorbing structure 102 is added to the flywheel 10, the first vibration absorbing structure 102 can absorb vibrations from the source of the engine, effectively improving the safety of the shaft system. The transmission assembly 100 provided by the present application has high reliability in use.

[0071] In some embodiments, Figure 7As shown, the intermediate gear 205 may include a first shaft section 2051 and a first tooth portion 2052 connected to the first shaft section 2051. A first bearing 2053 is sleeved on the first shaft section 2051 and is located between the first shaft section 2051 and the electromagnet 204. The first tooth portion 2052 is meshedly connected between the main gear 206 and the ring gear 201. When the electromagnet 204 is magnetically attracted to the support disk 202 and / or the disk body 101, the intermediate gear 205 can rotate relative to the electromagnet 204 through the first bearing 2053, that is, the intermediate gear 205 can achieve self-rotation, so as to achieve the purpose of transmitting torque between the ring gear 201 and the main gear 206.

[0072] In some embodiments, Figure 8 As shown, a limiting portion 2054 is provided on the side of the first shaft section 2051 away from the first tooth section 2052. The first bearing 2053 and the electromagnet 204 are stopped at the limiting portion 2054. The setting of the limiting portion 2054 prevents the electromagnet 204 and the first bearing 2053 from slipping off the first shaft section 2051, thereby improving the reliability of the torque transmission of the intermediate gear 205. For example, the limiting portion 2054 can be a limiting boss formed at the end of the first shaft section 2051 away from the first tooth section 2052. Of course, the limiting portion 2054 can also be a limiting strip, a limiting block, etc., which is not limited here, and those skilled in the art can make design adjustments according to actual conditions.

[0073] In some embodiments, Figure 7 and Figure 8 As shown, the main gear 206 may include a second tooth portion 2062, a second shaft section 2061 and a sleeve portion 2064. The second shaft section 2061 and the sleeve portion 2064 are respectively connected to the two sides of the second tooth portion 2062. The second tooth portion 2062 is used to mesh with the intermediate gear 205. The second shaft section 2061 is sleeved with a second bearing 2063 located between the second shaft section 2061 and the support disk 202. The inner wall of the sleeve portion 2064 is provided with a spline connected to the drive shaft of the generator. When the intermediate gear 205 drives the main gear 206 to rotate, the main gear 206 can rotate relative to the support disk 202 through the second bearing 2063 to drive the drive shaft of the generator to rotate. The spline provided on the sleeve portion 2064 can realize a reliable connection between the drive shaft of the generator and the main gear 206.

[0074] In some embodiments, Figure 5 and Figure 6As shown, the ring gear 201 is provided with an installation space 2011 and a second vibration absorbing structure 2012 located in the installation space 2011. The second vibration absorbing structure 2012 may include a vibration absorbing spring 2012a extending in the circumferential direction. The vibration absorbing spring 2012a is sleeved on a guide rod 2012b located in the installation space 2011. It is worth noting that when the engine rotates, the flywheel 10 and the ring gear 201 can be driven to rotate simultaneously. The second vibration absorbing structure 2012 provided on the ring gear 201 can further improve the vibration absorbing effect and protect the shaft system safety on the basis of the vibration absorbing of the first vibration absorbing structure 102 provided on the flywheel 10. Specifically, during the continuous rotation of the ring gear 201, the vibration absorbing spring 2012a will be compressed by the inertia force, thereby achieving the purpose of vibration absorption. The installation space 2011 can be constructed as a mounting groove opened on the ring gear 201, and the vibration absorbing spring 2012a can be provided in the mounting groove. Furthermore, the provision of the guide rod 2012b can further limit the vibration absorbing spring 2012a and guide the vibration absorbing spring 2012a to absorb vibration.

[0075] In some embodiments, Figure 5 and Figure 6 As shown, the vibration absorbing spring 2012a is provided with adjusting pieces 2012c on both sides along the circumferential direction. The adjusting piece 2012c is adjustably connected to the guide rod 2012b along the circumferential position. For example, both ends of the guide rod 2012b may be provided with external threads, and the adjusting piece 2012c may be constructed as a nut. By adjusting the initial position of the nut compared to the guide rod 2012b, the initial compression amount of the vibration absorbing spring 2012a can be adjusted, so that the vibration absorbing spring 2012a can be in a more suitable initial state of vibration absorption. Of course, it can be understood that the adjusting piece 2012c can also be in other forms, which is not limited here, and those skilled in the art can adjust the design according to actual conditions.

[0076] In some embodiments, Figure 5 and Figure 6 As shown, a buffer pad 2012d sleeved on the guide rod 2012b is provided between the vibration absorbing spring 2012a and the adjusting member 2012c. The buffer pad 2012d can be constructed as a rubber pad. The provision of the buffer pad 2012d can avoid the problem of collision and abnormal sound between the vibration absorbing spring 2012a and the adjusting member 2012c during the vibration absorbing compression process.

[0077] According to the third aspect of the present disclosure, a range-extending system is provided. The range-extending system may include an engine, a generator and the above-mentioned transmission assembly 100. The engine is connected to the generator through the transmission assembly 100. Specifically, in the power generation mode, the range-extending system can control the electromagnet 204 to be magnetically attracted to the support disk 202 and / or the disk body 101, so that the engine and the generator can be in a high-efficiency range to achieve the purpose of efficient power generation. The range-extending system composed of the above-mentioned transmission assembly 100, the engine and the generator can have a relatively stable reliability of use.

[0078] According to a fourth aspect of the present disclosure, a vehicle is provided. The vehicle may include the above-mentioned range-extending system and have all the beneficial effects of the above-mentioned range-extending system. The vehicle with the above-mentioned range-extending system can have a longer driving range, thereby improving the driving experience of the driver.

[0079] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0080] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0081] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A flywheel, characterized in that: include: Plate body; and The first vibration absorbing structure includes a vibration part and an elastic part, and the vibration part is connected to the disk body through the elastic part.

2. The flywheel according to claim 1, characterized in that The disk body has a weight-reducing gap, the vibration part and the elastic part are located in the weight-reducing gap, and the vibration part is connected to the side wall of the weight-reducing gap through the elastic part.

3. The flywheel according to claim 2, characterized in that A lifting lug connected to the elastic part is arranged on the side wall of the weight-reducing gap.

4. The flywheel according to claim 2, characterized in that The disk body includes a first connecting ring, a second connecting ring and a connecting piece. The second connecting ring is located on the inner side of the first connecting ring and is arranged coaxially with the first connecting ring. The connecting piece is connected between the first connecting ring and the second connecting ring. The gap formed between the first connecting ring and the second connecting ring forms the weight-reducing gap.

5. The flywheel according to claim 4, characterized in that There are a plurality of the connecting members, which are arranged at intervals along the circumference of the disk body. In the circumferential direction, at least one first vibration absorbing structure is provided between any two adjacent connecting members.

6. A flywheel according to any one of claims 1 to 5, characterized in that: The elastic parts are in plurality and are arranged around the circumference of the vibration part. One end of the elastic part is connected to the vibration part, and the other end is connected to the disk body.

7. The flywheel according to claim 6, characterized in that The elastic part is a spring.

8. A transmission assembly, characterized in that: include: The flywheel according to any one of claims 1 to 7, wherein the flywheel disc is connected to the crankshaft of the engine; and A transmission structure, wherein the flywheel is connected to the drive shaft of the generator through the transmission structure.

9. The transmission assembly according to claim 8, characterized in that: The transmission structure comprises: A gear ring connected to the disc body and arranged coaxially with the disc body; A support plate connected to the crankshaft, the support plate is located inside the plate body and is coaxially arranged with the plate body, and a track extending in the circumferential direction is formed between the support plate and the plate body; an electromagnet, at least partially located in the track and capable of being magnetically attracted to the support disk and / or the disk body, wherein the electromagnet can move along the track under the action of an external force in an attracted state; an intermediate gear connected to the electromagnet and capable of rotating around its own axis relative to the electromagnet; and The main gear is connected to the support disk and can rotate around its own axis relative to the support disk. The intermediate gear is meshed and connected between the main gear and the ring gear. The main gear is connected to the drive shaft of the generator to rotate synchronously with the drive shaft.

10. The transmission assembly according to claim 9, characterized in that: The intermediate gear includes a first shaft section and a first tooth portion connected to the first shaft section, a first bearing located between the first shaft section and the electromagnet is sleeved on the first shaft section, and the first tooth portion is meshingly connected between the main gear and the gear ring.

11. The transmission assembly according to claim 10, characterized in that: A limiting portion is provided on a side of the first shaft segment away from the first tooth portion, and the first bearing and the electromagnet are stopped at the limiting portion.

12. The transmission assembly according to claim 9, characterized in that: The main gear includes a second tooth portion, a second shaft section and a sleeve portion, the second shaft section and the sleeve portion are respectively connected to two sides of the second tooth portion, the second tooth portion is used to engage with the intermediate gear, the second shaft section is sleeved with a second bearing located between the second shaft section and the support plate, and the inner wall of the sleeve portion is provided with a spline connected to the drive shaft of the generator.

13. The transmission assembly according to claim 9, characterized in that: The gear ring is provided with an installation space and a second vibration absorbing structure located in the installation space. The second vibration absorbing structure comprises a vibration absorbing spring extending in the circumferential direction. The vibration absorbing spring is sleeved on a guide rod located in the installation space.

14. The transmission assembly according to claim 13, characterized in that: Adjusting pieces are respectively arranged on both sides of the vibration absorbing spring along the circumferential direction, and the adjusting pieces are connected to the guide rod in an adjustable manner along the circumferential direction.

15. The transmission assembly according to claim 14, characterized in that: A buffer pad sleeved on the guide rod is arranged between the vibration absorbing spring and the adjusting member.

16. A range-extending system, characterized in that: It comprises an engine, a generator and a transmission assembly as described in any one of claims 9 to 15, wherein the engine is connected to the generator via the transmission assembly.

17. A vehicle, characterized in that: Includes the range-extending system as claimed in claim 16.

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