WO2024113648A1

WO2024113648A1 - Hybrid transmission assembly and vehicle with same

Info

Publication number: WO2024113648A1
Application number: PCT/CN2023/089322
Authority: WO
Inventors: 张�成; 刘彦超; 刘君祺; 白秀超; 付超
Original assignee: 中国第一汽车股份有限公司
Priority date: 2022-12-02
Filing date: 2023-04-19
Publication date: 2024-06-06
Also published as: CN115823234A

Abstract

A hybrid transmission assembly, comprising: a transmission housing (10), wherein an inner surface of the transmission housing is provided with a bearing chamber (102) for an engine input shaft, a side wall of the bearing chamber for the engine input shaft is provided with a first oil guide groove (002), and an engine input shaft assembly (E) is provided in the bearing chamber for the engine input shaft; and a first split oil guide groove (3), which is connected to a groove wall of the first oil guide groove and is located above the first oil guide groove. In the transmission assembly, the bearing chamber for the engine input shaft is provided with a first oil guide groove at the side wall, and is internally provided with an engine input shaft assembly, and the first split oil guide groove is in communication with the first oil guide groove, so that the first split oil guide groove is configured to collect oil thrown out by means of a gear of the engine input shaft assembly so as to lubricate a bearing (E1) of the engine input shaft assembly by means of the first oil guide groove. Thus, the bearing of the engine input shaft assembly can be effectively lubricated and cooled, thereby achieving the effects of reducing wear, prolonging the service life of the bearing and improving the reliability thereof. The present application further relates to a vehicle with the hybrid transmission assembly.

Description

Hybrid transmission assembly and vehicle having the same

Technical Field

The present application relates to the field of vehicle technology, and more specifically, to a hybrid transmission assembly and a vehicle having the same. The present application claims priority to a patent application filed with the State Intellectual Property Office of China on December 2, 2022, with application number 202211538488.4 and invention name “Hybrid Transmission and Vehicle Having the Same”.

Background technique

New energy vehicles, including pure electric and hybrid vehicles, are the mainstream of the current automotive industry, and major automakers are also working hard to develop them. Compared with fuel vehicles, the outstanding advantages of new energy vehicles are energy saving, environmental protection, and cost advantages. They require a more compact layout and higher transmission efficiency for the power system. The bearings used to support the high-speed rotation of the shaft system inside the transmission will greatly reduce their service life if they are not well supported by the lubrication system, causing user complaints. The main lubrication methods used in the market are splash lubrication and active lubrication.

The disadvantage of splash lubrication is that compared with the reducer, the hybrid transmission has more shaft systems, and it is difficult for the oil to reach all the gears and bearings that need lubrication, especially the shaft system arranged at the top of the transmission, which greatly increases the complexity of the housing lubrication structure and the manufacturing cost.

There are two main types of active lubrication: mechanical pumps and electronic pumps. The amount of lubricating oil in a mechanical pump is related to the gear speed. At low speeds, the gear speed is low, which can easily lead to poor bearing lubrication. Electronic pumps increase the cost of the entire vehicle, consume battery energy, increase the energy consumption of the entire vehicle, and reduce the vehicle's cruising range.

Summary of the invention

The main purpose of the present application is to provide a hybrid transmission assembly and a vehicle having the same, so as to solve the problem of poor bearing lubrication effect in the prior art.

In order to achieve the above-mentioned purpose, according to one aspect of the present application, a hybrid transmission assembly is provided, including: a transmission housing, the inner surface of the transmission housing is provided with a bearing chamber of an engine input shaft, the side wall of the bearing chamber of the engine input shaft is provided with a first oil guide groove, and the bearing chamber of the engine input shaft is provided with an engine input shaft assembly; a first split oil guide groove, the first split oil guide groove is connected to the groove wall of the first oil guide groove, and the first split oil guide groove is located above the first oil guide groove, the first split oil guide groove is communicated with the first oil guide groove, and the first split oil guide groove is used to collect oil thrown out by the gears of the engine input shaft assembly to lubricate the engine input shaft bearing of the engine input shaft assembly through the first oil guide groove.

Furthermore, at least one side wall of the first split oil guiding groove is arranged at an obtuse angle to the plane where the bottom of the first split oil guiding groove is located.

Furthermore, the inner surface of the transmission housing is provided with a bearing chamber of the intermediate shaft of the driving motor, the bearing chamber of the intermediate shaft of the driving motor is provided with a second oil guide groove, the bearing chamber of the intermediate shaft of the driving motor is provided with a intermediate shaft assembly of the driving motor, and the transmission housing The body is also provided with a second split oil guide groove, which is connected to the groove wall of the second oil guide groove, and the second split oil guide groove is arranged in communication with the second oil guide groove. The second split oil guide groove is used to collect the oil thrown out by the gear of the drive motor intermediate shaft assembly to lubricate the drive motor intermediate shaft bearing of the drive motor intermediate shaft assembly through the second oil guide groove.

Further, at least one of the first split oil guide groove and the second split oil guide groove is a plastic part.

Further, two adjacent side walls of the first oil guiding groove transition through an arc surface, or two adjacent side walls of the second oil guiding groove transition through an arc surface.

Furthermore, the second oil guide groove includes an oil guide section extending in the radial direction of the bearing chamber of the drive motor intermediate shaft, and a first oil guide rib is arranged on the side wall of the transmission housing, the first oil guide rib extends in the vertical direction, and the first oil guide rib is located on the outside of the oil guide section, and the first oil guide rib is used to guide the oil into the oil guide section to lubricate the drive motor intermediate shaft bearing of the drive motor intermediate shaft assembly.

Further, the heights of the side walls of at least one of the first split oil guiding groove and the second split oil guiding groove are set differently.

Furthermore, the inner surface of the transmission housing is provided with a bearing chamber for the generator output shaft, a bearing chamber for the drive motor input shaft, a differential mounting chamber, and a bearing chamber for the engine intermediate shaft. The bearing chamber of the generator output shaft is arranged adjacent to the bearing chamber of the engine input shaft, the bearing chamber of the engine input shaft is arranged adjacent to the bearing chamber of the engine intermediate shaft, the bearing chamber of the drive motor input shaft is arranged adjacent to the bearing chamber of the engine input shaft and the bearing chamber of the drive motor intermediate shaft, the differential mounting chamber is located between the bearing chamber of the engine intermediate shaft and the bearing chamber of the drive motor intermediate shaft, a third oil guide groove is arranged on the side wall of the bearing chamber of the generator output shaft, a fourth oil guide groove is arranged on the side wall of the bearing chamber of the drive motor input shaft, the differential mounting chamber is provided with a first oil guide structure, and the bearing chamber of the engine intermediate shaft is provided with a second oil guide structure, wherein oil guide pipes are arranged in the third oil guide groove and the fourth oil guide groove.

Furthermore, the first oil guide structure includes a second oil guide rib, a third oil guide rib, a fourth oil guide rib and an oil guide rib groove. The second oil guide rib is located between the bearing chamber of the intermediate shaft of the drive motor and the side wall of the transmission housing. The second oil guide rib is extended along the axial direction of the bearing chamber of the intermediate shaft of the drive motor. The first end of the third oil guide rib is connected to the second oil guide rib, and the second end of the second oil guide rib extends to the side wall of the differential mounting cavity. The fourth oil guide rib is arranged at a distance from the third oil guide rib. A first groove structure is formed between the first end of the fourth oil guide rib and the third oil guide rib. The first groove structure is used for the oil supply body to flow into the differential mounting cavity. The second end of the fourth oil guide rib is extended along the circumference of the transmission housing, and an oil guide rib groove is formed between the fourth oil guide rib and the side wall of the transmission housing.

Furthermore, a mounting column is provided in the middle of the transmission housing, and the second oil guide structure includes a fifth oil guide rib and a fifth oil guide groove. The fifth oil guide groove is opened on the side wall of the bearing chamber of the engine intermediate shaft. The first end of the fifth oil guide rib is connected to the mounting column, and the second end of the fifth oil guide rib is connected to the notch of the fifth oil guide groove to lead the oil in the transmission housing into the fifth oil guide groove. The height from the first end of the fifth oil guide rib to the second end of the fifth oil guide rib is gradually reduced.

Furthermore, the hybrid transmission assembly also includes an oil guide block, which is located between the bearing chamber of the engine intermediate shaft and the side wall of the transmission housing, wherein a surface of the oil guide block facing the mounting surface of the transmission housing is provided with a hollow groove, and a plurality of reinforcing ribs and at least one screw column are provided in the hollow groove.

Furthermore, two adjacent side walls of the first oil guiding groove are transitioned through an arc surface, and two adjacent side walls of the second oil guiding groove are transitioned through an arc surface.

According to another aspect of the present application, a vehicle is provided, including a hybrid transmission assembly, wherein the hybrid transmission assembly is the hybrid transmission assembly of the above embodiment.

By applying the technical solution of the present application, a first oil guide groove and an engine input shaft assembly are provided on the side wall of the bearing chamber of the engine input shaft, and the first split oil guide groove is connected to the groove wall of the first oil guide groove, so that the first split oil guide groove is used to collect the oil thrown out by the gear of the engine input shaft assembly, so as to lubricate the bearing of the engine input shaft assembly through the first oil guide groove. The bearing of the engine input shaft assembly is effectively lubricated and cooled, so as to reduce wear and improve the life and reliability of the bearing.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

FIG1 shows a schematic structural diagram of a first embodiment of a hybrid transmission assembly according to the present application;

FIG2 shows a schematic structural diagram of a second embodiment of a hybrid transmission assembly according to the present application;

FIG3 shows a schematic structural diagram of a third embodiment of a hybrid transmission assembly according to the present application;

FIG4 shows a schematic structural diagram of a first embodiment of an oil guide block according to the present application.

The above drawings include the following reference numerals:

10. Housing; 101. Bearing chamber of generator output shaft; 102. Bearing chamber of engine input shaft; 103. Bearing chamber of drive motor input shaft; 104. Bearing chamber of drive motor intermediate shaft; 105. Differential mounting chamber; 106. Bearing chamber of engine intermediate shaft; 20. Mounting column;

1. Generator output shaft oil guide pipe; 2. Drive motor input shaft oil guide pipe; 3. First split oil guide groove; 4. Second split oil guide groove; 5. Oil guide block; 51. Reinforcement rib; 52. Screw column;

A, drive motor input shaft assembly; B, drive motor intermediate shaft assembly; C, differential assembly; D, engine intermediate shaft assembly; E, engine input shaft assembly; F, generator output shaft assembly; A1, drive motor input shaft bearing; B1, drive motor intermediate shaft bearing; C1, differential bearing; D1, engine intermediate shaft bearing; E1, engine input shaft bearing; F1, generator output shaft bearing;

001, third oil guide groove; 002, first oil guide groove; 003, fourth oil guide groove; 004, second oil guide groove; 0041, first oil guide rib; 0042, oil guide section; 005, first oil guide structure; 0051, second oil guide rib; 0052, third oil guide rib; 0053, fourth oil guide rib; 0054, oil guide rib groove; 006, second oil guide structure; 0061, fifth oil guide rib; 0062, fifth oil guide groove.

Detailed ways

It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and/or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

With reference to FIGS. 1 to 4 , according to a specific embodiment of the present application, a hybrid transmission assembly is provided.

Specifically, a hybrid transmission assembly includes: a transmission housing 10, the inner surface of which is provided with a bearing chamber 102 of an engine input shaft, the side wall of the bearing chamber 102 of the engine input shaft is provided with a first oil guide groove 002, and the engine input shaft assembly E is arranged in the bearing chamber 102 of the engine input shaft; a first split oil guide groove 3, the first split oil guide groove 3 is connected to the groove wall of the first oil guide groove 002, and the first split oil guide groove 3 is located above the first oil guide groove 002, the first split oil guide groove 3 is communicated with the first oil guide groove 002, and the first split oil guide groove 3 is used to collect the oil thrown out by the gears of the engine input shaft assembly E, so as to lubricate the engine input shaft bearing E1 of the engine input shaft assembly E through the first oil guide groove 002.

In this embodiment, as shown in FIG. 1 , the side wall of the bearing chamber 102 of the engine input shaft is provided with a first oil guide groove 002 and the engine input shaft assembly E, and the first split oil guide groove 3 is connected to the groove wall of the first oil guide groove 002, so that the first split oil guide groove 3 is used to collect the oil thrown out by the gear of the engine input shaft assembly E, so as to lubricate the bearing of the engine input shaft assembly E through the first oil guide groove 002. The bearing of the engine input shaft assembly is effectively lubricated and cooled, so as to reduce wear and improve the life and reliability of the bearing.

Furthermore, at least one side wall of the first split oil guide groove 3 is arranged at an obtuse angle to the plane where the bottom of the first split oil guide groove 3 is located. This arrangement facilitates the lubricating liquid to flow into the bottom of the first split oil guide groove 3 through the first split oil guide groove 3, effectively preventing the lubricating oil from being blocked and flowing poorly.

As shown in FIG. 2 , the inner surface of the transmission housing 10 is provided with a bearing chamber 104 for the intermediate shaft of the drive motor. The bearing chamber 104 of the intermediate shaft is provided with a second oil guide groove 004, the bearing chamber 104 of the intermediate shaft of the drive motor is provided with the intermediate shaft assembly B of the drive motor, and the transmission housing 10 is further provided with a second split oil guide groove 4, the second split oil guide groove 4 is connected to the groove wall of the second oil guide groove 004, and the second split oil guide groove 4 is arranged in communication with the second oil guide groove 004, and the second split oil guide groove 4 is used to collect the oil thrown out by the gear of the intermediate shaft assembly B of the drive motor, so as to lubricate the intermediate shaft bearing B1 of the intermediate shaft assembly B of the drive motor through the second oil guide groove 004. This arrangement can introduce a part of the splashing and active lubrication oil into the high-speed rotating bearing, improve the lubrication effect, and reduce the risk of failure.

Further, at least one of the first split oil guide groove 3 and the second split oil guide groove 4 is a plastic part. In this embodiment, the first split oil guide groove 3 and the second split oil guide groove 4 are plastic parts with good plasticity, which reduces the weight of the whole machine and improves fuel economy.

Specifically, a camber transition is formed between two adjacent side walls of the first oil guide groove 002, or a camber transition is formed between two adjacent side walls of the second oil guide groove 004. In this way, the side walls are provided with chamfers for easy installation of parts, reducing machining costs, and the camber is cast.

Furthermore, two adjacent side walls of the first oil guiding groove 002 are transitioned through an arc surface, and two adjacent side walls of the second oil guiding groove 004 are transitioned through an arc surface.

Furthermore, the second oil guide groove 004 includes an oil guide section 0042 extending in the radial direction of the bearing chamber 104 of the intermediate shaft of the drive motor. A first oil guide rib 0041 is provided on the side wall of the transmission housing 10. The first oil guide rib 0041 extends in the vertical direction and is located outside the oil guide section 0042. The first oil guide rib 0041 is used to guide the oil into the oil guide section 0042 to lubricate the intermediate shaft bearing B1 of the intermediate shaft assembly B of the drive motor. The first oil guide rib can be arranged in this way to introduce the splashed lubricating oil into the oil guide section 0042, thereby enhancing the lubrication of the intermediate shaft bearing B1 of the drive motor. The first oil guide rib 0041 can introduce the splashed lubricating oil from the movement of the differential assembly C into the oil guide section 0042, thereby enhancing the lubrication of the intermediate shaft bearing B1 of the drive motor.

Furthermore, the height of the side wall of at least one of the first split oil guide groove 3 and the second split oil guide groove 4 is set differently. In this embodiment, the first split oil guide groove 3 and the second split oil guide groove 4 are asymmetrical structures, the side edges are at an angle with the horizontal, and there is a height difference on both sides, so that splashed lubricating oil can still be collected to the corresponding bearing seat under harsh working conditions and large inclination angles to prevent bearing damage.

In another embodiment of the present application, the inner surface of the transmission housing 10 is provided with a bearing chamber 101 of the generator output shaft, a bearing chamber 103 of the drive motor input shaft, a differential mounting chamber 105, and a bearing chamber 106 of the engine intermediate shaft. The bearing chamber 101 of the generator output shaft is arranged adjacent to the bearing chamber 102 of the engine input shaft, the bearing chamber 102 of the engine input shaft is arranged adjacent to the bearing chamber 106 of the engine intermediate shaft, and the bearing chamber 103 of the drive motor input shaft is adjacent to the bearing chamber 102 of the engine input shaft and the bearing chamber 106 of the drive motor intermediate shaft. 104 are arranged adjacently, the differential installation cavity 105 is located between the bearing chamber 106 of the engine intermediate shaft and the bearing chamber 104 of the drive motor intermediate shaft, the side wall of the bearing chamber 101 of the generator output shaft is provided with a third oil guide groove 001, the side wall of the bearing chamber 103 of the drive motor input shaft is provided with a fourth oil guide groove 003, the differential installation cavity 105 is provided with a first oil guide structure 005, and the bearing chamber 106 of the engine intermediate shaft is provided with a second oil guide structure 006, wherein the third oil guide groove 001 and the fourth oil guide groove 003 are provided with oil guide pipes. Such an arrangement can ensure that the oil splashed by the rotation of the gears is concentrated on the bearings that need to be lubricated, improve the lubrication effect, and reduce the risk of failure.

As shown in FIG3 , the first oil guide structure 005 includes a second oil guide rib 0051, a third oil guide rib 0052, a fourth oil guide rib 0053 and an oil guide rib groove 0054. The second oil guide rib 0051 is located between the bearing chamber 104 of the intermediate shaft of the drive motor and the side wall of the transmission housing 10. The second oil guide rib 0051 is extended along the axial direction of the bearing chamber 104 of the intermediate shaft of the drive motor. The first end of the third oil guide rib 0052 is connected to the second oil guide rib 0051. The second end of the second oil guide rib 0051 is connected to the second oil guide rib 0051. The fourth oil guide rib 0053 and the third oil guide rib 0052 are arranged at a distance, and a first groove structure is formed between the first end of the fourth oil guide rib 0053 and the third oil guide rib 0052, and the first groove structure is used to supply oil to flow into the differential installation cavity 105. The second end of the fourth oil guide rib 0053 is extended along the circumference of the transmission housing 10, and the fourth oil guide rib 0053 and the side wall of the transmission housing 10 are surrounded by an oil guide rib groove 0054. In this embodiment, the first oil guide structure 005 includes the second oil guide rib 0051, the third oil guide rib 0052, the fourth oil guide rib 0053, and the oil guide rib groove 0054. Among them, the height of the third oil guide rib 0052 should not be too high to prevent all the splashing oil from being blocked and affecting the lubrication of other bearings. In this way, the lubricating oil can lubricate the differential bearing C1, which effectively improves the service life of the differential.

Furthermore, a mounting column 20 is provided in the middle of the transmission housing 10, and the second oil guide structure 006 includes a fifth oil guide rib 0061 and a fifth oil guide groove 0062. The fifth oil guide groove 0062 is provided on the side wall of the bearing chamber 106 of the engine intermediate shaft. The first end of the fifth oil guide rib 0061 is connected to the mounting column 20, and the second end of the fifth oil guide rib 0061 is connected to the notch of the fifth oil guide groove 0062, so as to lead the oil in the transmission housing 10 into the fifth oil guide groove 0062. The height from the first end of the fifth oil guide rib 0061 to the second end of the fifth oil guide rib 0061 is gradually reduced. In this embodiment, the fifth oil guide rib 0061 is slowly reduced in height to reduce weight and prevent excessive local wall thickness.

As shown in FIG4 , the hybrid transmission assembly further includes an oil guide block 5, which is located between the bearing chamber 106 of the engine intermediate shaft and the side wall of the transmission housing 10, wherein a hollow groove is provided on the surface of the oil guide block 5 facing the mounting surface of the transmission housing 10, and a plurality of reinforcing ribs 51 and at least one screw column 52 are provided in the hollow groove. In this embodiment, the reinforcing ribs 51 and the screw column 52 are interference-connected and fixed to the housing by bolts, thereby reducing oil stirring loss and improving efficiency. The inner cavity of the oil guide block 5 is a hollow structure to reduce weight, and the strength is enhanced by the reinforcing ribs 51.

In another embodiment of the present application, the generator output shaft oil guide pipe 1 and the drive motor input shaft oil guide pipe 2 are steel pipes, which are limited by the third oil guide groove 001 and the fourth oil guide groove 003 on the housing, respectively, and are clearance-matched with the housing in radial and axial directions. In order to avoid damaging the generator output shaft oil guide pipe 1 and the drive motor input shaft oil guide pipe 2, the axial clearance between the housing and the generator output shaft oil guide pipe 1 and the drive motor input shaft oil guide pipe 2 is at least 2 mm. The third oil guide groove 001 and the fourth oil guide groove 003 driven by the housing are respectively at the same height as the bearing seat of the generator output shaft bearing F1 and the bearing seat of the drive motor input shaft bearing A1. In addition, in order to facilitate installation and prevent damage to the oil pipe, the inner walls of the third oil guide groove 001 and the fourth oil guide groove 003 are chamfered. In addition, the engine intermediate shaft assembly D includes the engine intermediate shaft bearing D1, the engine input shaft assembly E includes the engine input shaft bearing E1, and the generator output shaft assembly F includes the generator output shaft bearing F1, and the bearings are fixed in the bearing seat of the housing, and the two are interference-fitted.

In another embodiment of the present application, a vehicle is provided, including a hybrid transmission assembly, wherein the hybrid transmission assembly is the hybrid transmission assembly of the above embodiment.

For ease of description, spatially relative terms such as "on", "above", "on the upper surface of", "above", etc. may be used to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the figure is inverted, the description of "on other devices or structures" is not limited to the device in the figure. A device described as being “above” or “above” other devices or structures will then be oriented “below” or “beneath” the other devices or structures. Thus, the exemplary term “above” can encompass both an orientation of “above” and “below.” The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of this application.

In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

A hybrid transmission assembly, characterized by comprising:

A transmission housing (10), wherein the inner surface of the transmission housing (10) is provided with a bearing chamber (102) for an engine input shaft, a side wall of the bearing chamber (102) for the engine input shaft is provided with a first oil guide groove (002), and an engine input shaft assembly (E) is provided in the bearing chamber (102) for the engine input shaft;

A first split oil guide groove (3), the first split oil guide groove (3) is connected to the groove wall of the first oil guide groove (002), and the first split oil guide groove (3) is located above the first oil guide groove (002), the first split oil guide groove (3) is communicated with the first oil guide groove (002), and the first split oil guide groove (3) is used to collect oil thrown out by the gear of the engine input shaft assembly (E) so as to lubricate the engine input shaft bearing (E1) of the engine input shaft assembly (E) through the first oil guide groove (002).
The hybrid transmission assembly according to claim 1, characterized in that at least one side wall of the first split oil guide groove (3) is arranged at an obtuse angle to the plane where the bottom of the first split oil guide groove (3) is located.
The hybrid transmission assembly according to claim 1 or 2 is characterized in that the inner surface of the transmission housing (10) is provided with a bearing chamber (104) of a drive motor intermediate shaft, the bearing chamber (104) of the drive motor intermediate shaft is provided with a second oil guide groove (004), the drive motor intermediate shaft assembly (B) is arranged in the bearing chamber (104) of the drive motor intermediate shaft, and the transmission housing (10) is also provided with a second split oil guide groove (4), the second split oil guide groove (4) is connected to the groove wall of the second oil guide groove (004), the second split oil guide groove (4) is arranged to communicate with the second oil guide groove (004), and the second split oil guide groove (4) is used to collect oil thrown out by the gear of the drive motor intermediate shaft assembly (B) to lubricate the drive motor intermediate shaft bearing (B1) of the drive motor intermediate shaft assembly (B) through the second oil guide groove (004).
The hybrid transmission assembly according to claim 3, characterized in that at least one of the first split oil guide groove (3) and the second split oil guide groove (4) is a plastic part.
The hybrid transmission assembly according to claim 3 is characterized in that two adjacent side walls of the first oil guide groove (002) are transitioned through a cambered surface, or two adjacent side walls of the second oil guide groove (004) are transitioned through a cambered surface.
The hybrid transmission assembly according to claim 3 is characterized in that the second oil guide groove (004) includes an oil guide section (0042) extending in the radial direction of the bearing chamber (104) of the drive motor intermediate shaft, and a first oil guide rib (0041) is provided on the side wall of the transmission housing (10), the first oil guide rib (0041) is extended in the vertical direction, and the first oil guide rib (0041) is located on the outer side of the oil guide section (0042), and the first oil guide rib (0041) is used to guide the oil into the oil guide section (0042) to lubricate the drive motor intermediate shaft bearing (B1) of the drive motor intermediate shaft assembly (B).
The hybrid transmission assembly according to claim 3, characterized in that the heights of the side walls of at least one of the first split oil guide groove (3) and the second split oil guide groove (4) are set to be different.
The hybrid transmission assembly according to claim 6 is characterized in that the inner surface of the transmission housing (10) is provided with a bearing chamber (101) of the generator output shaft, a bearing chamber (103) of the drive motor input shaft, a differential mounting chamber (105), and a bearing chamber (106) of the engine intermediate shaft, the bearing chamber (101) of the generator output shaft is arranged adjacent to the bearing chamber (102) of the engine input shaft, the bearing chamber (102) of the engine input shaft is arranged adjacent to the bearing chamber (106) of the engine intermediate shaft, the bearing chamber (103) of the drive motor input shaft is adjacent to the bearing chamber (102) of the engine input shaft and the shaft of the drive motor intermediate shaft. The bearing chambers (104) are arranged adjacent to each other, the differential installation chamber (105) is located between the bearing chamber (106) of the engine intermediate shaft and the bearing chamber (104) of the drive motor intermediate shaft, a third oil guide groove (001) is arranged on the side wall of the bearing chamber (101) of the generator output shaft, a fourth oil guide groove (003) is arranged on the side wall of the bearing chamber (103) of the drive motor input shaft, the differential installation chamber (105) is provided with a first oil guide structure (005), and the bearing chamber (106) of the engine intermediate shaft is provided with a second oil guide structure (006), wherein the third oil guide groove (001) and the fourth oil guide groove (003) are provided with oil guide pipes.
The hybrid transmission assembly according to claim 8 is characterized in that the first oil guide structure (005) includes a second oil guide rib (0051), a third oil guide rib (0052), a fourth oil guide rib (0053) and an oil guide rib groove (0054), the second oil guide rib (0051) is located between the bearing chamber (104) of the intermediate shaft of the drive motor and the side wall of the transmission housing (10), the second oil guide rib (0051) is extended along the axial direction of the bearing chamber (104) of the intermediate shaft of the drive motor, the first end of the third oil guide rib (0052) is connected to the second oil guide rib (0051), and the second oil guide rib (0053) is connected to the second oil guide rib (0051). The second end of the fourth oil guide rib (0051) extends to the side wall of the differential mounting cavity (105), the fourth oil guide rib (0053) is arranged at a distance from the third oil guide rib (0052), a first groove structure is formed between the first end of the fourth oil guide rib (0053) and the third oil guide rib (0052), the first groove structure is used to supply oil to flow into the differential mounting cavity (105), the second end of the fourth oil guide rib (0053) is extended along the circumference of the transmission housing (10), and the fourth oil guide rib (0053) and the side wall of the transmission housing (10) are surrounded by the oil guide rib groove (0054).
The hybrid transmission assembly according to claim 8 is characterized in that a mounting column (20) is provided in the middle of the transmission housing (10), the second oil guide structure (006) comprises a fifth oil guide rib (0061) and a fifth oil guide groove (0062), the fifth oil guide groove (0062) is opened on the side wall of the bearing chamber (106) of the engine intermediate shaft, the first end of the fifth oil guide rib (0061) is connected to the mounting column (20), the second end of the fifth oil guide rib (0061) is connected to the notch of the fifth oil guide groove (0062), so as to guide the oil in the transmission housing (10) into the fifth oil guide groove (0062), and the height from the first end of the fifth oil guide rib (0061) to the second end of the fifth oil guide rib (0061) is gradually reduced.
The hybrid transmission assembly according to claim 8 is characterized in that the hybrid transmission assembly further comprises an oil guide block (5), the oil guide block (5) being located between the bearing chamber (106) of the engine intermediate shaft and the side wall of the transmission housing (10), wherein a hollow groove is provided on a surface of the oil guide block (5) facing the mounting surface of the transmission housing (10), and a plurality of reinforcing ribs (51) and at least one screw column (52) are provided in the hollow groove.
The hybrid transmission assembly according to claim 3 is characterized in that two adjacent side walls of the first oil guide groove (002) are transitioned through a cambered surface, and two adjacent side walls of the second oil guide groove (004) are transitioned through a cambered surface.
A vehicle comprises a hybrid transmission assembly, wherein the hybrid transmission assembly is the hybrid transmission assembly according to any one of claims 1 to 12.