CN216589673U

CN216589673U - Clutch suitable for P1 hybrid vehicle

Info

Publication number: CN216589673U
Application number: CN202123185091.5U
Authority: CN
Inventors: 刘婧文; 李军均
Original assignee: BorgWarner Automotive Components Ningbo Co Ltd
Current assignee: BorgWarner United Transmission Systems Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-24
Anticipated expiration: 2031-12-17

Abstract

The utility model belongs to the technical field of automobile clutches, and provides a clutch suitable for a P1 hybrid electric vehicle, which comprises: input hub, output hub, main wheel hub, the shell body, interior casing, input hub is connected with the engine, output hub is connected with the gearbox, be equipped with the oil duct system on the main wheel hub, piston assembly, the oil duct system is linked together with piston assembly, be equipped with friction pack between shell body and the interior casing, thereby piston assembly is used for acting on friction pack through the oil duct system and controls the linkage and the separation of input hub and output hub, be connected with spider on the input hub, spider extends the upside of clutch, the last electric motor rotor that is equipped with of spider. Compared with the prior art, the utility model has the advantages that: the motor rotor is arranged on the outer ring of the clutch through the rotor support, the contradiction that the P1 motor and the clutch which are independently arranged occupy larger axial space and the P1 hybrid electric vehicle power coupling system occupies smaller axial space is solved, and the installation requirement is met.

Description

Clutch suitable for P1 hybrid vehicle

Technical Field

The utility model belongs to the technical field of automobile clutches, and particularly relates to a clutch suitable for a P1 hybrid electric vehicle.

Background

With the increasing demand for reducing the emission of automobiles and saving energy, the application prospect of hybrid electric vehicles is more and more extensive. The hybrid electric vehicle combines the traditional internal combustion engine, a driving motor and an energy storage device (a storage battery), fully exerts the advantages of the internal combustion engine and the motor through good matching and optimal control, and enables the vehicle to achieve high fuel-saving rate and good maneuverability.

A conventional clutch is located between the engine and the gearbox, with the input shaft of the clutch being connected directly or indirectly to the engine and the output shaft of the clutch being connected to the input shaft of the gearbox. During the running of the automobile, the engine and the gearbox are temporarily separated and gradually jointed so as to cut off or transmit the power input by the engine to the transmission.

A hybrid electric vehicle is provided with two power generation devices, namely an internal combustion engine and an electric motor, the P1 hybrid electric vehicle is in a structure that the electric motor is placed in front of a clutch behind the engine, the power of the electric motor needs to be output to a gearbox through the clutch or used for starting the engine, and when the transverse gearbox is arranged, the axial space is limited, so that the problem that the P1 hybrid electric motor is arranged in the original limited space is solved. The traditional clutch design does not integrate the functions of the motor and can not meet the requirements of functions and arrangement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a clutch suitable for a P1 hybrid electric vehicle, which can save the installation space of the clutch of the hybrid electric vehicle.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the clutch suitable for the P1 hybrid electric vehicle is provided, and comprises: input hub, output hub, main wheel hub, shell body, interior casing, the input hub is connected with the engine through external splines, the output hub is connected with the gearbox through internal splines, the shell body with the input hub is connected, interior casing with the output hub is connected, be equipped with oil duct system, piston assembly on the main wheel hub, the oil duct system with piston assembly is linked together, be equipped with friction pack between shell body and the interior casing, piston assembly is used for acting on through the oil duct system thereby control on the friction pack input hub and output hub link and separate, be connected with the spider on the input hub, the upside that the spider extends the clutch, be equipped with electric motor rotor on the spider.

Compared with the prior art, the utility model has the advantages that: the motor rotor is arranged on the outer ring of the clutch through the rotor support, the contradiction that the P1 motor and the clutch which are independently arranged occupy larger axial space and the P1 hybrid electric vehicle power coupling system occupies smaller axial space is solved, the installation requirement is met, and the motor is successfully arranged and integrated in the framework of the traditional internal combustion engine vehicle. In addition, the rotor support is directly connected to the input hub, and then the outer shell is connected with the rotor support, so that the structure of the clutch of the integrated motor is simplified, the use of a connecting piece is saved, and the installation space is saved.

In the above clutch suitable for the P1 hybrid electric vehicle, the rotor support is connected with the input hub, the outer shell is sleeved in the rotor support, the main hub is provided with the driving disc, and the driving disc is connected with the outer shell. The driving disc is arranged on the main hub, so that the rotor support is supported, and the rotor support is more stable. According to the clutch, the rotor support is sleeved on the outer side of the outer shell, and the rotor support is connected with the outer shell through the rivet, so that the connection stability of the rotor support and the clutch is guaranteed. The rotor support and the outer shell can be connected to the input hub respectively, or the outer shell is connected with the input hub, the rotor support is sleeved outside the outer shell, the rotor support can be determined according to whether the clutch needs to be matched with various electronic rotors with large inner diameter difference, flexible adjustment can be achieved, the universality of clutch design is enhanced, and cost is saved. In addition, the connection mode between the outer shell and the rotor bracket can be bolt connection, welding connection and the like.

In the above clutch suitable for the P1 hybrid electric vehicle, the piston assembly includes an action piston, an action piston skeleton, and a balance piston, the action piston is disposed between the action piston skeleton and the driving disk, a spring disc is disposed between the action piston skeleton and the balance piston, a sealing lip is disposed between the action piston skeleton and the main hub, a pressure chamber is defined by the action piston, the action piston skeleton, the driving disk, the sealing lip, and the main hub, and the pressure chamber is communicated with the oil duct system. When the clutch is used, pressure oil in the oil duct system enters a pressure cavity enclosed by the action piston, the action piston framework, the driving disc, the sealing lip and the main hub, the action piston framework is pushed, the spring force of the spring disc is overcome, the action piston framework acts on the friction assembly, and therefore the clutch is combined, and torque is transmitted from the outer shell to the output hub through the internal spline to the gearbox spline shaft meshed with the output hub.

In the clutch suitable for the P1 hybrid electric vehicle, the friction assembly comprises a friction plate and a separation plate, the separation plate is connected with the outer shell, and the friction plate is connected with the inner shell. The partition plate rotates along with the rotation of the outer shell, the friction plate rotates along with the rotation of the inner shell, and the linkage or separation between the friction plate and the partition plate is controlled through the piston assembly, so that the linkage or separation of the input hub and the output hub is realized. Linkage state: the oil duct system drives the acting piston framework to overcome the elastic force of the spring disc to move towards the direction close to the friction assembly so as to drive the friction plate to be attached to the partition plate, so that the output hub and the input hub are linked, and the torque and the rotating speed are transmitted from the input hub to the output hub. A separation state: the oil pressure of the piston framework is reduced under the driving action, the piston framework moves towards the direction far away from the friction group under the action of the spring disc, so that the friction plate is separated from the separation plate, the output hub is separated from the input hub, and the torque and the rotating speed of the input hub cannot be transmitted out through the output hub. The number of the friction plates and the partition plates can be changed according to parameters such as actual transmission torque, system pressure and the like. In the utility model, the two pairs of connection relations of the partition plate and the outer shell, the friction plate and the inner shell can be exchanged, namely the friction plate is connected with the outer shell, and the partition plate is connected with the inner shell.

In the above clutch suitable for the P1 hybrid electric vehicle, the oil passage system includes an oil pressure port and an oil pressure pipeline, the oil pressure port is provided with a sealing ring, and one end of the oil pressure pipeline is communicated with the pressure chamber. The other end of the oil pressure pipeline is provided with a steel ball which plays a role in sealing. The steel ball can also be adjusted into a part such as a sealing plug, a sealing cover or a gluing plug which can play a role in plugging according to actual requirements.

In the clutch suitable for the P1 hybrid electric vehicle, a motor speed sensor is arranged on the main hub. The position of the rotational speed sensor can also be adjusted according to the spatial arrangement, and the parts of the input hub, the rotor bracket, the outer shell and the driving disk which have the same rotational speed as the main hub can be arranged or can be connected with the parts through connecting pieces.

Drawings

Fig. 1 is a schematic view of the overall structure of one embodiment of the present invention.

In the drawings, 1, an input hub; 2. an output hub; 3. an outer housing; 4. an inner housing; 5. a rotor support; 6. a motor rotor; 7. an action piston; 8. acting on the piston skeleton; 9. a balance piston; 10. a spring holder; 11. a friction plate; 12. a partition plate; 13. an oil pressure port; 14. an oil pressure line; 15. a seal ring; 16. a motor speed sensor; 17. a steel ball; 18. riveting; 19. a main hub; 20. a drive disc; 21. and (7) sealing the lip.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, the clutch of the present invention is suitable for a P1 hybrid vehicle, and comprises: input hub 1, output hub 2, main hub 19, shell body 3, interior casing 4, input hub 1 is connected with the engine through the external splines, output hub 2 is connected with the gearbox through the internal splines, shell body 3 is connected with input hub 1, interior casing 4 is connected with output hub 2, be equipped with the oil duct system on the main hub 19, piston assembly, the oil duct system is linked together with piston assembly, be equipped with friction pack between shell body 3 and the interior casing 4, piston assembly is used for acting on friction pack through the oil duct system thereby control input hub 1 and output hub 2 to link and separate, be connected with spider 5 on the input hub 1, spider 5 extends the upside of clutch, be equipped with electric motor rotor 6 on spider 5.

The motor rotor 6 is arranged on the outer ring of the clutch through the rotor support 5, the contradiction that the P1 motor and the clutch which are independently arranged occupy larger axial space and the P1 hybrid electric vehicle power coupling system occupies smaller axial space is solved, the installation requirement is met, and the motor is successfully arranged and integrated in the framework of the traditional internal combustion engine vehicle. In addition, the rotor bracket 5 is directly connected with the input hub 1, and the outer shell 3 is connected with the input hub 1, so that the structure of the clutch of the integrated motor is simplified, the use of a connecting piece is saved, and the installation space is saved.

The rotor support 5 is sleeved outside the outer shell 3, the rotor support 5 is connected with the outer shell 3, the driving disc 20 is arranged on the main hub 19, and the driving disc 20 is connected with the outer shell 3. By providing the drive disk 20 on the main hub 19, the rotor support 5 is supported, and the connection of the rotor support 5 is more stable. According to the utility model, the rotor support 5 is connected with the input hub 1, the outer shell 3 is sleeved on the inner side of the rotor support 5, and the rotor support 5 is connected with the outer shell 3 through the rivet 18, so that the connection stability of the rotor support 5 and the clutch is ensured. The rotor support 5 and the outer shell 3 can also be respectively connected to the input hub 1, or the outer shell 3 is connected with the input hub 1, the rotor support 5 is sleeved outside the outer shell 3 and can be determined according to whether the clutch needs to be matched with various electronic rotors with larger inner diameter difference, flexible adjustment can be realized, the universality of clutch design is enhanced, and the cost is saved. In addition, the connection mode between the outer shell 3 and the rotor bracket 5 in the utility model can also be bolt connection, welding connection and the like.

The piston assembly comprises an action piston 7, an action piston framework 8 and a balance piston 9, the action piston 7 is arranged between the action piston framework 8 and a driving disc 20, a spring disc 10 is arranged between the action piston framework 8 and the balance piston 9, a sealing lip 21 is arranged between the action piston framework 8 and a main hub 19, a pressure cavity is enclosed among the action piston 7, the action piston framework 8, the driving disc 20, the sealing lip 21 and the main hub 19, and the pressure cavity is communicated with an oil duct system. When the clutch is used, pressure oil in the oil channel system enters a pressure cavity enclosed among the action piston 7, the action piston framework 8, the driving disc 20, the sealing lip 21 and the main hub 19 to push the action piston framework 8, overcomes the spring force of the spring disc 10, and enables the action piston framework 8 to act on the friction assembly, so that the clutch is combined, and torque is transmitted from the outer shell 3 to the output hub 2 to a gearbox spline shaft meshed with the outer shell through an internal spline. The acting piston 7 in the utility model can be a rotary piston or a non-rotary piston according to the pressure of the transmission system. The rotary piston can be arranged into various forms according to specific space, can be a vulcanized piston, and can also be matched with a framework by a sealing ring. Wherein, the vulcanizing piston can be a single piece type or a two-piece type with a small vulcanizing piston matching with the framework. Furthermore, the part of the sealing lip 21 can also be eliminated by vulcanizing a sealing lip on the working piston framework 8. These piston forms can be combined flexibly according to the actual space and functional requirements.

The friction assembly comprises a friction plate 11 and a separator plate 12, the separator plate 12 is connected with the outer shell 3, and the friction plate 11 is connected with the inner shell 4. The partition plate 12 rotates with the rotation of the outer housing 3, the friction plates 11 rotate with the rotation of the inner housing 4, and the linkage or separation between the friction plates 11 and the partition plate 12 is controlled by the piston assembly, thereby realizing the linkage or separation of the input hub 1 and the output hub 2. Linkage state: the oil duct system drives the acting piston framework 8 to move towards the direction close to the friction assembly against the elastic force of the spring disc 10 so as to drive the friction plate 11 to be attached to the partition plate 12, so that the output hub 2 and the input hub 1 are linked, and the torque and the rotating speed are transmitted from the input hub 1 to the output hub 2. A separation state: the oil pressure of the drive action piston framework 8 is reduced, the piston framework moves towards the direction far away from the friction group under the action of the spring disc 10, so that the friction plate 11 is separated from the separation plate 12, the output hub 2 is separated from the input hub 1, and the torque and the rotating speed of the input hub 1 cannot be transmitted out through the output hub 2. The number of the friction plates 11 and the partition plates 12 in the utility model can be changed according to parameters such as actual transmission torque and system pressure. In the utility model, the two pairs of connection relations of the partition plate 12 and the outer shell 3, the friction plate 11 and the inner shell 4 can also be exchanged, namely the friction plate 11 is connected with the outer shell 3, and the partition plate 12 is connected with the inner shell 4.

The oil duct system comprises an oil pressure port 13 and an oil pressure pipeline 14, a sealing ring 15 is arranged at the oil pressure port 13, and one end of the oil pressure pipeline 14 is communicated with the pressure cavity. The other end of the oil pressure pipeline 14 is provided with a steel ball 17 for sealing. The steel ball 17 can be adjusted to be a sealing plug, a sealing cover or a gluing plug and other parts capable of playing a role in plugging according to actual requirements.

The main hub 19 is provided with a motor speed sensor 16. The position of the rotational speed sensor can also be adjusted according to the spatial arrangement, and the parts of the input hub 1, the rotor support 5, the outer housing 3, the drive disk 20 which rotate at the same speed as the main hub 19 can be arranged or can be connected with the above parts through connecting pieces.

The specific embodiments described herein are merely illustrative of the utility model. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A clutch suitable for a P1 hybrid electric vehicle comprises: the clutch comprises an input hub (1), an output hub (2), a main hub (19), an outer shell (3) and an inner shell (4), wherein the input hub (1) is connected with an engine through an external spline, the output hub (2) is connected with a gearbox through an internal spline, the outer shell (3) is connected with the input hub (1), the inner shell (4) is connected with the output hub (2), an oil duct system and a piston assembly are arranged on the main hub (19), the oil duct system is communicated with the piston assembly, a friction assembly is arranged between the outer shell (3) and the inner shell (4), the piston assembly is used for acting on the friction assembly through the oil duct system so as to control the input hub (1) and the output hub (2) to be linked and separated, the clutch is characterized in that a rotor support (5) is connected on the input hub (1), and the rotor support (5) extends out of the upper side of the clutch, and a motor rotor (6) is arranged on the rotor bracket (5).

2. The clutch suitable for the P1 hybrid electric vehicle according to claim 1, wherein the rotor support (5) is sleeved outside the outer housing (3), the rotor support (5) is connected with the outer housing (3), the main hub (19) is provided with a driving disc (20), and the driving disc (20) is connected with the outer housing (3).

3. The clutch suitable for the P1 hybrid electric vehicle as claimed in claim 2, wherein the piston assembly includes an acting piston (7), an acting piston skeleton (8), and a balance piston (9), the acting piston (7) is disposed between the acting piston skeleton (8) and a driving disk (20), a spring disk (10) is disposed between the acting piston skeleton (8) and the balance piston (9), a sealing lip (21) is disposed between the acting piston skeleton (8) and a main hub (19), a pressure chamber is defined between the acting piston (7), the acting piston skeleton (8), the driving disk (20), the sealing lip (21), and the main hub (19), and the pressure chamber is communicated with the oil channel system.

4. A clutch suitable for a P1 hybrid vehicle according to claim 3, wherein the friction pack comprises a friction plate (11) and a separator plate (12), the separator plate (12) is connected with the outer shell (3), and the friction plate (11) is connected with the inner shell (4).

5. The clutch applicable to the P1 hybrid vehicle is characterized in that the oil passage system comprises an oil pressure port (13) and an oil pressure pipeline (14), a sealing ring (15) is arranged at the oil pressure port (13), and one end of the oil pressure pipeline (14) is communicated with the pressure cavity.

6. The clutch applicable to the P1 hybrid electric vehicle is characterized in that the main hub (19) is provided with a motor speed sensor (16).