US-12623528-B2 - Clutch assembly, power mechanism and vehicle

US12623528B2US 12623528 B2US12623528 B2US 12623528B2US-12623528-B2

Abstract

A clutch assembly includes a first transmission member, a first clutch component, and a second clutch component. The first clutch component includes a first clutch portion and a second clutch portion, and the second clutch component includes a third clutch portion and a fourth clutch portion. The first clutch portion and the third clutch portion are connected to the first transmission member to enable the first transmission member to form a first end of the clutch assembly. The second clutch portion is selectively engaged with the first clutch portion to enable the second clutch portion to form a second end of the clutch assembly. The fourth clutch portion is selectively engaged with the third clutch portion to enable the fourth clutch portion to form a third end of the clutch assembly.

Inventors

Feng Zhang
Gaoming Zhao
Yinsheng LIAO
Ning Zhu
Qiang Wang

Assignees

BYD COMPANY LIMITED

Dates

Publication Date: 20260512
Application Date: 20241106
Priority Date: 20220531

Claims (17)

1 . A clutch assembly, comprising a countershaft, a first transmission member, a first clutch component, and a second clutch component, the first clutch component comprising a first clutch portion and a second clutch portion, the second clutch component comprising a third clutch portion and a fourth clutch portion, the first clutch portion and the third clutch portion being connected to the first transmission member to enable the first transmission member to form a first end of the clutch assembly, the second clutch portion being selectively engaged with the first clutch portion to enable the second clutch portion to form a second end of the clutch assembly, wherein the first transmission member is a gear, the first clutch portion and the third clutch portion are connected to each other to form a clutch body, and the first transmission member is disposed on the clutch body, the fourth clutch portion being selectively engaged with the third clutch portion to enable the fourth clutch portion to form a third end of the clutch assembly, and the countershaft having a free end and a limiting end, and a direction from the second clutch portion to the fourth clutch portion is the same as a direction from the free end to the limiting end.
2 . The clutch assembly according to claim 1 , wherein the first end is an output end of the clutch assembly, and the second end and the third end are input ends of the clutch assembly.
3 . The clutch assembly according to claim 1 , wherein the second end is an output end of the clutch assembly, and the first end and the third end are input ends of the clutch assembly.
4 . The clutch assembly according to claim 1 , wherein along a thickness direction of the first transmission member, the first clutch portion and the third clutch portion are respectively connected to two sides of the first transmission member; and along the thickness direction of the first transmission member, a projection of the first clutch portion and a projection of the third clutch portion at least partially overlap.
5 . The clutch assembly according to claim 1 , wherein an outer periphery of the clutch body comprises teeth as the first transmission member.
6 . The clutch assembly according to claim 1 , wherein the first transmission member, the first clutch portion, and the third clutch portion are integrally formed.
7 . The clutch assembly according to claim 1 , wherein the first transmission member is connected to the countershaft, and the second clutch portion and the fourth clutch portion are rotatably disposed on the countershaft.
8 . The clutch assembly according to claim 7 , further comprising a housing, a first bearing, and a second bearing, wherein: the first bearing is connected between the fourth clutch portion and the countershaft to enable the fourth clutch portion and the countershaft to relatively rotate, the second bearing is connected between the fourth clutch portion and the housing to enable the fourth clutch portion and the housing to relatively rotate, and along a radial direction of the countershaft, a projection of the first bearing and a projection of the second bearing at least partially overlap.
9 . The clutch assembly according to claim 1 , wherein a first limiting portion is formed on the fourth clutch portion, a second limiting portion is disposed on the limiting end of the countershaft, and the first limiting portion is coupled with the second limiting portion to limit axial movement of the countershaft.
10 . The clutch assembly according to claim 9 , wherein the fourth clutch portion is recessed toward a side away from the limiting end to form the first limiting portion, the limiting end protrudes toward a side away from the free end to form the second limiting portion, the first limiting portion comprises a spherical groove, the second limiting portion comprises a spherical protrusion, and the first limiting portion and the second limiting portion are concentric and spaced apart.
11 . A power mechanism, comprising a first power member, a second power member, and a clutch assembly, wherein the clutch assembly comprises a countershaft, a first transmission member, a first clutch component, and a second clutch component, the first clutch component comprising a first clutch portion and a second clutch portion, the second clutch component comprising a third clutch portion and a fourth clutch portion, the first clutch portion and the third clutch portion being connected to the first transmission member to enable the first transmission member to form a first end of the clutch assembly, the first transmission member is a gear, the first clutch portion and the third clutch portion are connected to each other to form a clutch body, the first transmission member is disposed on the clutch body, the second clutch portion being selectively engaged with the first clutch portion to enable the second clutch portion to form a second end of the clutch assembly, the fourth clutch portion being selectively engaged with the third clutch portion to enable the fourth clutch portion to form a third end of the clutch assembly, the countershaft having a free end and a limiting end, and a direction from the second clutch portion to the fourth clutch portion is the same as a direction from the free end to the limiting end; and two of the first end, the second end, and the third end are input ends of the clutch assembly, the other one of the first end, the second end, and the third end is an output end of the clutch assembly, the first power member and the second power member are connected to the input ends, and the output end is connected to a first driving end.
12 . The power mechanism according to claim 11 , further comprising a third power member, wherein the third power member is configured to output power to a second driving end.
13 . The power mechanism according to claim 11 , wherein the first end is an output end of the clutch assembly, and the second end and the third end are input ends of the clutch assembly.
14 . The power mechanism according to claim 11 , wherein the second end is an output end of the clutch assembly, and the first end and the third end are input ends of the clutch assembly.
15 . The power mechanism according to claim 11 , wherein along a thickness direction of the first transmission member, the first clutch portion and the third clutch portion are respectively connected to two sides of the first transmission member; and along the thickness direction of the first transmission member, a projection of the first clutch portion and a projection of the third clutch portion at least partially overlap.
16 . The power mechanism according to claim 11 , wherein an outer periphery of the clutch body comprises teeth as the first transmission member.
17 . A vehicle, comprising a power mechanism, power mechanism comprising a first power member, a second power member, and a clutch assembly, wherein the clutch assembly comprises a countershaft, a first transmission member, a first clutch component, and a second clutch component, the first clutch component comprising a first clutch portion and a second clutch portion, the second clutch component comprising a third clutch portion and a fourth clutch portion, the first clutch portion and the third clutch portion being connected to the first transmission member to enable the first transmission member to form a first end of the clutch assembly, the first transmission member is a gear, the first clutch portion and the third clutch portion are connected to each other to form a clutch body, the first transmission member is disposed on the clutch body, the second clutch portion being selectively engaged with the first clutch portion to enable the second clutch portion to form a second end of the clutch assembly, the fourth clutch portion being selectively engaged with the third clutch portion to enable the fourth clutch portion to form a third end of the clutch assembly, the countershaft having a free end and a limiting end, and a direction from the second clutch portion to the fourth clutch portion is the same as a direction from the free end to the limiting end; and two of the first end, the second end, and the third end are input ends, the other one of the first end, the second end, and the third end is an output end, the first power member and the second power member are connected to the input ends, and the output end is connected to a first driving end.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a continuation application of International Patent Application No. PCT/CN2023/097354, filed on May 31, 2023, which is based on and claims priority to and benefits of Chinese Patent Application No. 202210613299.2 filed on May 31, 2022. The entire content of all of the above-referenced applications is incorporated herein by reference. FIELD The present disclosure relates to the field of vehicles, and particularly, to a clutch assembly, a power mechanism, and a vehicle. BACKGROUND As the demand for energy saving and environmental protection becomes higher, new energy vehicles have gradually become mainstream models for consumers to select. Types of existing new energy vehicles mainly include pure electric vehicles and hybrid vehicles. To alleviate concerns about service life of batteries, demands of consumers for hybrid vehicles gradually increase. However, in consideration of an engine and a motor, an existing hybrid vehicle has a complex transmission system and a long transmission chain. As a result, the transmission system occupies a large space. SUMMARY The technical problem resolved by the present disclosure is that an existing transmission system is complex in structure and occupies a large space. To resolve the foregoing technical problem, examples of the present disclosure provide a clutch assembly. The clutch assembly includes a first transmission member, a first clutch component, and a second clutch component. The first clutch component includes a first clutch portion and a second clutch portion. The second clutch component includes a third clutch portion and a fourth clutch portion. The first clutch portion and the third clutch portion are connected to the first transmission member to enable the first transmission member to form a first end of the clutch assembly. The first clutch portion is selectively engaged with the second clutch portion to enable the second clutch portion to form a second end of the clutch assembly. The fourth clutch portion is selectively engaged with the third clutch portion to enable the fourth clutch portion to form a third end of the clutch assembly. In an embodiment, the first end is an output end of the clutch assembly, and the second end and the third end are input ends of the clutch assembly. In an embodiment, the second end is an output end of the clutch assembly, and the first end and the third end are input ends of the clutch assembly. In an embodiment, along a thickness direction of the first transmission member, the first clutch portion and the third clutch portion are respectively connected to two sides of the first transmission member. Along the thickness direction of the first transmission member, a projection of the first clutch portion and a projection of the third clutch portion at least partially overlap. In an embodiment, the first transmission member is a gear. The first clutch portion and the third clutch portion are connected to each other to form a clutch body, and the first transmission member is disposed on the clutch body. In an embodiment, an outer periphery of the clutch body includes teeth as the first transmission member. In an embodiment, the first transmission member, the first clutch portion, and the third clutch portion are integrally formed. In an embodiment, the clutch assembly further includes a countershaft. The first transmission member is connected to the countershaft. The second clutch portion and the fourth clutch portion are rotatably disposed on the countershaft. In an embodiment, the countershaft has a free end and a limiting end. A direction from the second clutch portion to the fourth clutch portion is the same as a direction from the free end to the limiting end. In an embodiment, a first limiting portion is formed on the fourth clutch portion. A second limiting portion is disposed on the limiting end of the countershaft. The first limiting portion is coupled with the second limiting portion to limit axial movement of the countershaft. In an embodiment, the fourth clutch portion is recessed toward a side away from the limiting end to form the first limiting portion. The limiting end protrudes toward a side away from the free end to form the second limiting portion. The first limiting portion is a spherical groove. The second limiting portion is a spherical protrusion. The first limiting portion and the second limiting portion are concentric and spaced apart. In an embodiment, the clutch assembly further includes a housing, a first bearing, and a second bearing. The first bearing is fixed between the fourth clutch portion and the countershaft to enable the fourth clutch portion and the countershaft to relatively rotate. The second bearing is fixed between the fourth clutch portion and the housing to enable the fourth clutch portion and the housing to relatively rotate. Along a radial direction of the countershaft, a projection of the first bearing and a projection of th