Power system and vehicle

Abstract

The embodiment of the utility model provides a power system and a vehicle, and the power system comprises an engine, a generator and a first sealing part arranged between the engine and the generator; the engine is provided with a first cavity, the first cavity is used for containing engine oil, the generator is provided with a second cavity, and the second cavity is used for containing lubricating oil; the first sealing piece comprises a connecting plate, a first sealing layer and a second sealing layer, one face of the first sealing layer is connected with the first side face of the connecting plate, the other face of the first sealing layer is connected with the engine, one face of the second sealing layer is connected with the second side face of the connecting plate, and the other face of the second sealing layer is connected with the generator. The first side face and the second side face are two opposite side faces. Therefore, the first sealing piece is arranged between the engine and the generator, so that the risk that engine oil in the engine leaks and is mixed with lubricating oil of the generator is reduced, and further, the service life of the power system can be prolonged.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and particularly to a power system and a vehicle. Background Art

[0002] Compared with pure electric vehicles, range-extended electric vehicles can solve problems such as short cruising range and inconvenient charging. Specifically, the power system of a range-extended electric vehicle includes an engine and a generator, and the engine is connected to the generator through a motor rotor.

[0003] Currently, the rear end of the engine is sealed with engine oil through a crankshaft oil seal, and the connection between the generator and the engine is sealed by applying glue on the end face. There is a risk of leakage after long-term driving. If the rear oil seal of the engine leaks and mixes with the engine oil of the generator, it will affect the lubrication of the engine and the generator, and further reduce the service life of the power system. Utility Model Content

[0004] The embodiments of the present application provide a power system and a vehicle, which can solve the problem of low service life of the power system.

[0005] To solve the above technical problems, the present application is implemented as follows:

[0006] In a first aspect, the embodiments of the present application provide a power system, including an engine, a generator, and a first seal disposed between the engine and the generator;

[0007] The engine has a first cavity for placing engine oil, and the generator has a second cavity for placing lubricating oil;

[0008] The first seal includes a connecting plate, a first sealing layer, and a second sealing layer. One side of the first sealing layer is connected to the first side of the connecting plate, the other side of the first sealing layer is connected to the engine, one side of the second sealing layer is connected to the second side of the connecting plate, and the other side of the second sealing layer is connected to the generator. The first side and the second side are two opposite sides.

[0009] Optionally, a first through hole is provided on the connecting plate, and the crankshaft of the engine passes through the first through hole and is connected to the generator.

[0010] Optionally, the power system further includes a clamping member disposed on the connecting plate. The generator has a first groove with an opening facing the connecting plate, and the connecting plate is disposed in the first groove through the clamping member.

[0011] Optionally, the first groove is an annular groove, and the engaging member is an annular structure provided on the connecting plate and facing the annular groove from the second side surface.

[0012] Optionally, the power system further includes a second seal provided between the second sealing layer and the generator, and a vertically projected area of the second seal on the connecting plate is located outside a vertically projected area of the annular structure on the connecting plate.

[0013] Optionally, the generator has a first mounting hole, and the power system further includes a positioning post provided on the connecting plate, and the positioning post is adapted to the first mounting hole.

[0014] Optionally, the first mounting hole is a threaded hole, and a second through hole is further provided on the connecting plate. The positioning post is formed by a bolt passing through the second through hole, and the bolt is adapted to the second through hole.

[0015] Optionally, the second seal is made of a metal material.

[0016] In a second aspect, an embodiment of the present application provides a vehicle, including the power system as described in the first aspect.

[0017] In the technical solution provided by the embodiment of the present application, the power system includes an engine, a generator, and a first seal provided between the engine and the generator; the engine has a first cavity for placing engine oil, and the generator has a second cavity for placing lubricating oil; the first seal includes a connecting plate, a first sealing layer, and a second sealing layer. One side of the first sealing layer is connected to the first side surface of the connecting plate, the other side of the first sealing layer is connected to the engine, one side of the second sealing layer is connected to the second side surface of the connecting plate, the other side of the second sealing layer is connected to the generator, and the first side surface and the second side surface are two opposite side surfaces. In this way, by providing the first seal between the engine and the generator, the risk of engine oil leakage in the engine and mixing with the lubricating oil in the generator can be reduced. Further, the service life of the power system can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the first seal provided by the embodiment of the present application;

[0019] Figure 2 is a side view of the first seal and the engaging member provided by the embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0021] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the ordinary meanings understood by those of ordinary skill in the art to which the present application belongs. The "first", "second" and similar terms used in the present application do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms "upper", "lower", "left", "right" and the like are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship also changes accordingly.

[0022] Please refer to Figure 1 and Figure 2 , which is a schematic structural diagram of the first seal provided by the embodiment of the present application. A power system includes an engine, a generator, and a first seal 10 disposed between the engine and the generator;

[0023] The engine has a first cavity for placing engine oil, and the generator has a second cavity for placing lubricating oil;

[0024] The first seal 10 includes a connecting plate 11, a first sealing layer, and a second sealing layer. One side of the first sealing layer is connected to the first side surface of the connecting plate 11, the other side of the first sealing layer is connected to the engine, one side of the second sealing layer is connected to the second side surface of the connecting plate 11, and the other side of the second sealing layer is connected to the generator. The first side surface and the second side surface are two opposite side surfaces.

[0025] It should be understood that the first sealing layer and the second sealing layer may be oily substances coated on the two opposite side surfaces of the connecting plate 11. In a specific implementation, there is an oil film controlled by the oil seal edge between the oil seal lip and the engine crankshaft. Under the action of the liquid surface tension, the stiffness of the oil film just forms a crescent surface at the end where the oil film contacts the air, preventing the leakage of the generator lubricating oil into the closed cavity, thereby achieving the sealing effect.

[0026] It should be noted that the engine crankshaft itself also has an oil seal, which is located at the connection position between the engine and the generator and is used to prevent the leakage of engine oil.

[0027] In the embodiment of the present application, the power system includes an engine, a generator, and a first seal 10 disposed between the engine and the generator; the engine has a first cavity for placing engine oil, and the generator has a second cavity for placing lubricating oil; the first seal 10 includes a connecting plate 11, a first sealing layer, and a second sealing layer. One side of the first sealing layer is connected to the first side of the connecting plate 11, the other side of the first sealing layer is connected to the engine, one side of the second sealing layer is connected to the second side of the connecting plate 11, and the other side of the second sealing layer is connected to the generator. The first side and the second side are two opposite sides. In this way, by providing the first seal 10 between the engine and the generator, the risk of engine oil leakage into the generator and mixing with the lubricating oil in the generator is reduced. Further, the service life of the power system can be extended.

[0028] Optionally, a first through hole 111 is provided on the connecting plate 11, and the crankshaft of the engine passes through the first through hole 111 and is connected to the generator.

[0029] Optionally, the power system further includes a clamping member 20 disposed on the connecting plate 11. The generator has a first groove with an opening facing the connecting plate 11, and the connecting plate 11 is disposed in the first groove through the clamping member 20.

[0030] In this embodiment, the connecting plate 11 can be connected to the generator through the clamping member 20, thereby improving the connection stability between the connecting plate 11 and the generator.

[0031] Optionally, the first groove is an annular groove, and the clamping member 20 is an annular structure provided on the connecting plate 11 from the second side towards the annular groove.

[0032] It should be understood that the annular structure surrounds the first through hole 111 and faces the annular groove on the generator. When the annular structure is located in the annular groove, the connecting plate 11 is connected to the generator.

[0033] Optionally, the power system further includes a second seal disposed between the second sealing layer and the generator, and the vertical projection area of the second seal on the connecting plate 11 is located outside the vertical projection area of the annular structure on the connecting plate 11.

[0034] It should be understood that by additionally providing a second seal, the sealing strength between the engine and the generator can be further improved.

[0035] Optionally, the second seal is made of a metal material.

[0036] In a specific implementation, since a second seal is additionally provided on the surface of the generator, the risk of leakage of the lubricating oil in the generator can be further reduced.

[0037] In an optional embodiment, the second seal can be a metal gasket.

[0038] Optionally, the generator has a first mounting hole, and the power system further includes a positioning post provided on the connecting plate 11, and the positioning post is adapted to the first mounting hole.

[0039] Optionally, the first mounting hole is a spiral hole, and a second through hole 112 is further provided on the connecting plate 11. The positioning post is formed by a bolt passing through the second through hole 112, and the bolt is adapted to the second through hole 112.

[0040] In this embodiment, by tightening the bolt, the connecting plate 11 is fixed to the generator.

[0041] An embodiment of the present application provides a vehicle, and the vehicle includes the power system as described above. Since the technical solution of this embodiment includes all the technical solutions of the above embodiment, at least all the technical effects of the above embodiment can be achieved, and details are not described herein one by one.

[0042] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A power system, characterized in that: comprising an engine, a generator, and a first seal disposed between the engine and the generator; The engine has a first cavity, the first cavity is used to place engine oil, and the generator has a second cavity, the second cavity is used to place lubricating oil; The first sealing member includes a connecting plate, a first sealing layer and a second sealing layer, one side of the first sealing layer is connected to the first side of the connecting plate, the other side of the first sealing layer is connected to the engine, one side of the second sealing layer is connected to the second side of the connecting plate, the other side of the second sealing layer is connected to the generator, and the first side and the second side are two oppositely arranged side surfaces.

2. The power system according to claim 1, characterized in that: The connecting plate is provided with a first through hole, and the crankshaft of the engine passes through the first through hole to be connected with the generator.

3. The power system according to claim 1, characterized in that: The power system further comprises a clamping member arranged on the connecting plate, the generator has a first groove, the opening of the first groove faces the connecting plate, and the connecting plate is arranged in the first groove through the clamping member.

4. The power system according to claim 3, characterized in that: The first groove is an annular groove, and the clamping member is an annular structure arranged on the connecting plate from the second side surface toward the annular groove.

5. The power system according to claim 4, characterized in that: The power system further includes a second seal member disposed between the second seal layer and the generator, wherein a vertical projection area of ​​the second seal member on the connecting plate is located outside a vertical projection area of ​​the annular structure on the connecting plate.

6. The power system according to claim 1, characterized in that: The generator has a first mounting hole, and the power system further includes a positioning column arranged on the connecting plate, and the positioning column is adapted to the first mounting hole.

7. The power system according to claim 6, characterized in that: The first mounting hole is a spiral hole, and the connecting plate is further provided with a second through hole. The positioning column is formed by a bolt passing through the second through hole, and the bolt is adapted to the second through hole.

8. The power system according to claim 5, characterized in that: The second sealing member is made of metal.

9. A vehicle, characterized in that: Comprising a power system as claimed in any one of claims 1-8.

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