A transverse direct-drive range extender adapter board, a direct-drive range extender, and a car

Abstract

This utility model discloses a transverse direct-drive range extender adapter plate, a direct-drive range extender, and a vehicle. The transverse direct-drive range extender adapter plate is disposed between the engine and the generator. It includes: a central hole at the center of the plate body; the inner wall of the central hole is used for sealing and sleeved with the crankshaft rear oil seal seat of the engine through a radial sealing ring; a sealing ring groove is disposed on the side of the plate body near the generator; the sealing ring groove is used to house the sealing ring, so that the sealing ring is located between the plate body and the generator. The central hole of the transverse direct-drive range extender adapter plate is sealed and positioned with the crankshaft rear oil seal seat through the radial sealing ring, and is also sealed and connected with the generator end face through the sealing ring, so that the generator and the engine are sealed independently. At the same time, the sealing ring, the radial sealing ring, the crankshaft rear oil seal seat, and the generator form a sealed cavity, which is isolated from each other and does not affect each other.

Description

Technical Field

[0001] This utility model belongs to the technical field of automotive range extender adapter boards, and more specifically, relates to a horizontally mounted direct-connect range extender adapter board, a direct-connect range extender, and an automobile. Background Technology

[0002] A range extender generally refers to a component that can provide additional electrical energy, enabling a vehicle to travel a longer distance. Traditionally, a range extender refers to a combination of an engine and a generator. With the advancement of range extender design in new energy vehicles, the axial dimension of the range extender has been further reduced, costs have been lowered, the dual-mass flywheel has been eliminated, and the engine crankshaft and generator rotor have been directly connected.

[0003] Chinese patent application CN202121826483.2 discloses a rigid direct-drive range extender structure with rotor support, including a motor housing body, a rotor bracket, and an inner stop. The front end of the rotor bracket passes through the engine output end of the engine body and is directly connected to the engine output shaft. A rotor pressure plate is fixed to the rear end of the rotor bracket. The middle part of the rotor pressure plate is provided with a convex shaft structure. A motor housing cover plate is provided at the rear end of the motor housing body. A circular groove for installing a bearing is provided at the front end of the motor housing cover plate. The end of the convex shaft structure is fixed to the bearing.

[0004] The aforementioned patented solution connects the motor housing to the engine output body. In this installation method, the generator and engine are not sealed independently, which poses a risk of mixing of the generator and engine lubricating oil. The mixed lubricating oil changes its properties, reducing the service life of the engine and generator. It also has low flexibility when matching different engines, and replacing an engine requires redeveloping the engine block and oil pan, resulting in high development costs. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a horizontally mounted direct-drive range extender adapter plate, which solves the problem that existing generators and engines are not individually sealed, leading to the risk of mixing of generator and engine lubricating oil.

[0006] To achieve the above objectives, this utility model provides a horizontally mounted direct-drive range extender adapter plate, disposed between the engine and the generator, comprising:

[0007] The plate has a central hole at its center, and the inner wall of the central hole is used to seal with the engine's crankshaft rear oil seal seat through a radial sealing ring.

[0008] A sealing ring groove is provided on the side of the plate body near the generator. The sealing ring groove is used to install a sealing ring, so that the sealing ring is located between the plate body and the generator.

[0009] Optionally, the plate body is also provided with a through hole for passing a positioning pin. The inner diameter of the through hole is larger than the outer diameter of the positioning pin, and the two ends of the positioning pin are respectively positioned and engaged with the engine and the generator.

[0010] Optionally, radial reinforcing ribs are provided on the outer periphery of the central hole.

[0011] Optionally, the sealing ring groove is concentric with the central hole.

[0012] Optionally, the limiting groove of the radial sealing ring is provided on the inner wall of the central hole and / or on the outer periphery of the crankshaft rear oil seal seat.

[0013] Optionally, the sealing ring groove is located between the central hole and the through hole.

[0014] This utility model also provides a direct-drive range extender, comprising:

[0015] Engine and generator, with the engine and generator connected by a drive;

[0016] The aforementioned transverse direct-drive range extender adapter plate is disposed between the engine and the generator. The inner wall of the central hole is sealed to the engine's crankshaft rear oil seal seat through a radial sealing ring. The plate body is sealed to the generator's end face through a sealing ring disposed in the sealing ring groove.

[0017] Optionally, it further includes: a positioning pin and a mounting bolt, wherein the plate body is provided with a through hole for the positioning pin to pass through, the inner diameter of the through hole is larger than the outer diameter of the positioning pin, the two ends of the positioning pin are respectively positioned and engaged with the engine and the generator, the positioning pin is provided with an axial through hole, and the mounting bolt passes through the positioning hole of the engine, the through hole and the positioning hole of the generator.

[0018] Optionally, the mounting bolt includes a head, a smooth rod, and a threaded part connected in sequence, the smooth rod being connected to a through hole, and the threaded part being threadedly connected to a positioning hole of the generator.

[0019] This utility model also provides an automobile, including the above-described transverse direct-drive range extender.

[0020] This utility model provides a horizontally mounted direct-connect range extender adapter board, the advantages of which are:

[0021] The center hole of the transverse direct-drive range extender adapter plate is connected to the crankshaft rear oil seal seat via a radial sealing ring for sealing and positioning. Simultaneously, it is connected to the generator end face via the sealing ring, adapting to different generator end face shapes. This allows the generator and engine to be independently sealed, while the sealing ring, radial sealing ring, crankshaft rear oil seal seat, and generator form a sealed cavity, isolating them from each other and preventing interference. The through-hole accommodates positioning deviations, ensuring convenient and stable connection and installation.

[0022] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0023] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0024] Figure 1 A schematic diagram of the installation of a horizontally mounted direct-drive range extender adapter plate according to an embodiment of the present invention is shown.

[0025] Figure 2 A schematic diagram of the structure of a horizontally mounted direct-drive range extender adapter plate according to an embodiment of the present invention is shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Generator; 2. Plate; 3. Assembly bolt; 4. Locating pin; 5. Sealing ring; 6. Engine; 7. O-ring; 8. Crankshaft rear oil seal seat; 9. Through hole; 10. Sealing ring groove. Detailed Implementation

[0028] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0029] like Figure 1-2 As shown, a horizontally mounted direct-drive range extender adapter plate is disposed between the engine 6 and the generator 1, comprising:

[0030] Plate 2, with a central hole at the center of the plate 2, the inner wall of the central hole is used to seal with the crankshaft rear oil seal seat 8 through a radial sealing ring;

[0031] The sealing ring groove 10 is located on the side of the plate 2 near the generator 1. The sealing ring groove 10 is used to set the sealing ring 5 so that the sealing ring 5 is located between the plate 2 and the generator 1.

[0032] Specifically, the center hole is sealed and positioned with the crankshaft rear oil seal seat 8 through a radial sealing ring, and is also sealed with the end face of the generator 1 through a sealing ring 5. This adapts to different end face shapes of the generator 1, allowing the generator 1 and the engine 6 to be sealed independently. At the same time, the sealing ring 5, the radial sealing ring, the crankshaft rear oil seal seat 8, and the generator 1 form a sealed cavity, which is isolated from each other and does not affect each other.

[0033] Furthermore, multiple radial sealing rings and sealing rings 5 ​​can be set at intervals to improve the sealing effect. To ensure stable installation of the radial sealing rings and good sealing effect, the central hole extends axially into a cylindrical structure.

[0034] Furthermore, the sealing ring groove 10 is designed to conform to irregular and complex end faces.

[0035] In this embodiment, the plate 2 is also provided with a through hole 9, which is used to pass through the positioning pin 4. The inner diameter of the through hole 9 is larger than the outer diameter of the positioning pin 4, and the two ends of the positioning pin 4 are respectively positioned and engaged with the engine 6 and the generator 4.

[0036] Specifically, the through hole 9 adapts to positioning deviations, making the plate 2 easy and stable to be positioned and connected through the center hole.

[0037] In this embodiment, radial reinforcing ribs are provided around the outer periphery of the central hole.

[0038] Specifically, the stiffness and modal properties of plate 2 are improved by reinforcing ribs.

[0039] In this embodiment, the sealing ring groove 10 is concentrically arranged with the central hole.

[0040] Specifically, the concentric design ensures precise positioning and adapts to situations where the rear end face of generator 1 is discontinuous and cannot be sealed. By centering on the drive shafts of both generator 1 and engine 6, a suitable location is selected for sealing and connection, ensuring both sealing effectiveness and assembly precision.

[0041] In this embodiment, the limiting groove of the radial sealing ring is provided on the inner wall of the central hole and / or the outer periphery of the crankshaft rear oil seal seat 8.

[0042] Specifically, the limiting groove is adapted to the specifications of the radial sealing ring.

[0043] Furthermore, the radial sealing ring is an O-ring, and the limiting groove is set on the crankshaft rear oil seal seat 8.

[0044] In this embodiment, the sealing ring groove 10 is located between the central hole and the through hole 9.

[0045] Specifically, this prevents the through hole 9 from damaging the sealed cavity formed by the sealing ring 5, radial sealing ring, crankshaft rear oil seal seat 8, and generator 1.

[0046] This utility model also provides a direct-drive range extender, comprising:

[0047] Engine 6 and generator 1 are connected by a transmission between engine 6 and generator 1.

[0048] The aforementioned transverse direct-drive range extender adapter plate is positioned between the engine 6 and the generator 1. The inner wall of the central hole is sealed to the crankshaft rear oil seal seat 8 of the engine 6 via a radial sealing ring. The plate body 2 is sealed to the end face of the generator 1 via a sealing ring 5 located in the sealing ring groove 10.

[0049] Specifically, this direct-drive range extender is easy to assemble and avoids the risk of mixing of lubricating oil between generator 1 and engine 6.

[0050] In this embodiment, the positioning pin 4 and the mounting bolt 3 are provided. The plate 2 is provided with a through hole for the positioning pin 4 to pass through. The inner diameter of the through hole is larger than the outer diameter of the positioning pin 4. The two ends of the positioning pin 4 are respectively positioned and engaged with the engine 6 and the generator 1. The positioning pin 4 is provided with an axial through hole. The mounting bolt 3 passes through the positioning hole, the through hole of the engine 6 and the positioning hole of the generator 1.

[0051] Specifically, the mounting bolt 3 tightly connects the generator 1, the direct-connect range extender adapter plate, and the engine 6.

[0052] In this embodiment, the mounting bolt 3 includes a head, a smooth rod, and a threaded part connected in sequence. The smooth rod is connected to the through hole, and the threaded part is threadedly connected to the positioning hole of the generator 1.

[0053] This utility model also provides an automobile, including the above-described transverse direct-drive range extender.

[0054] In this embodiment, a horizontally mounted direct-connect range extender adapter board is used, taking assembly as an example:

[0055] First, install the O-ring 7 on the crankshaft rear oil seal seat 8; then install the plate 2 on the engine 6, with the center hole of the adapter plate engaging with the O-ring 7. The adapter plate is positioned by internal hole positioning. The positioning pin 4 on the engine 6 passes through the through hole 9, and the positioning pin 4 and the through hole 9 are clearance fit, without positioning the adapter plate; install the sealing ring 5 into the sealing ring groove 10; connect the generator 1 to the engine 6 and the adapter plate together through the mounting bolt 3, and position the generator 1 and the engine 6 together through the positioning pin 4.

[0056] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A cross-over direct connection range extender adapter plate disposed between an engine and a generator, the adapter plate comprising: include: The plate has a central hole at its center, and the inner wall of the central hole is used to seal with the engine's crankshaft rear oil seal seat through a radial sealing ring. A sealing ring groove is provided on the side of the plate body near the generator. The sealing ring groove is used to install a sealing ring, so that the sealing ring is located between the plate body and the generator.

2. The cross-positioned direct connection range extender adapter plate of claim 1, wherein, The plate is also provided with a through hole for passing a positioning pin. The inner diameter of the through hole is larger than the outer diameter of the positioning pin, and the two ends of the positioning pin are respectively positioned and engaged with the engine and the generator.

3. The crossfire direct connect range extender adapter plate of claim 1, wherein, The outer periphery of the central hole is provided with radial reinforcing ribs.

4. The crossfire direct connect range extender adapter plate of claim 1, wherein, The sealing ring groove is concentrically arranged with the center hole.

5. The crossfire direct connect range extender adapter plate of claim 1, wherein, The limiting groove of the radial sealing ring is provided on the inner wall of the central hole and / or on the outer periphery of the crankshaft rear oil seal seat.

6. The crossfire direct connect range extender adapter plate of claim 2, wherein, The sealing ring groove is located between the center hole and the through hole.

7. A direct connect range extender, characterized by, include: Engine and generator, with the engine and generator connected by a drive; The transverse direct-drive range extender adapter plate according to any one of claims 1-6, wherein the transverse direct-drive range extender adapter plate is disposed between the engine and the generator, the inner wall of the central hole is sealed to the crankshaft rear oil seal seat of the engine through a radial sealing ring, and the plate body is sealed to the end face of the generator through a sealing ring disposed in the sealing ring groove.

8. The direct connect range extender of claim 7, wherein, Also includes: The plate body is provided with a through hole for the positioning pin to pass through. The inner diameter of the through hole is larger than the outer diameter of the positioning pin. The two ends of the positioning pin are respectively positioned and engaged with the engine and the generator. The positioning pin is provided with an axial through hole. The assembly bolt passes through the positioning hole of the engine, the through hole and the positioning hole of the generator.

9. The direct-drive range extender according to claim 8, characterized in that, The mounting bolt includes a head, a smooth rod, and a threaded part connected in sequence. The smooth rod is connected to a through hole, and the threaded part is threaded to a positioning hole of the generator.

10. An automobile characterized by comprising: Includes the horizontally mounted direct-drive range extender as described in any one of claims 7-9.

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