Title:
TRANSMISSION MECHANISM HAVING COOLING FLOW PATH, AND ELECTRIC BRIDGE DRIVE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/065281
Kind Code:
A1
Abstract:
Provided is a transmission mechanism having a cooling flow path, the transmission mechanism comprising a shaft assembly (1, 2) and an inner cylinder (3). A first annular rib portion (3a1) is formed on an outer peripheral wall of one axial end (3a) of the inner cylinder (3) to close a gap between the axial end (3a) of the inner cylinder (3) and the shaft assembly (1, 2), and a second annular rib portion (3b1) is formed on an outer peripheral wall of the other axial end (3b) of the inner cylinder (3) to close a gap between the other axial end (3b) of the inner cylinder (3) and the shaft assembly (1, 2), such that a cooling medium entering from an inlet of the shaft assembly (1, 2) can flow through a central hole (3h1), a communication hole (3h2), an intermediate space (S) and a discharge hole (1h2) to be discharged to the outside of the shaft assembly. Thus, the processing precision of a corresponding component is reduced, the assembly process is simplified, and the assembly time is shortened. Further provided is an electric bridge drive system comprising the transmission mechanism.
Inventors:
LI XIN (CN)
Application Number:
PCT/CN2021/125562
Publication Date:
April 27, 2023
Filing Date:
October 22, 2021
Export Citation:
Assignee:
SCHAEFFLER TECHNOLOGIES AG (DE)
LI XIN (CN)
LI XIN (CN)
International Classes:
H02K9/19; H02K1/32; H02K9/193
Domestic Patent References:
| WO2020094512A1 | 2020-05-14 |
Foreign References:
| CN110311506A | 2019-10-08 | |||
| CN212426181U | 2021-01-29 | |||
| DE102018104131A1 | 2019-08-29 |
Attorney, Agent or Firm:
LINDA LIU & PARTNERS (CN)
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