Thermal management system and electric vehicle having the same

US11548349B2 · kind B2 · utility

Assignee

• GUANGZHOU AUTOMOBILE GROUP CO., LTD. · CN

Inventors

• Xiaohui Li · Shenyang, CN
• Qin Yang · Longbeilingcun, CN
• Bozhi Yang · Sunnyvale, US
• Meng Yao · West Linn, US
• Chen Zhang · Redmond, US
• Meng Wang · Beijing, CN

Key dates

• Filing date: Jun 2, 2021
• Grant date: Jan 10, 2023
• Expiry date: Sep 16, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/70
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A thermal management system includes a refrigerant loop, a motor coolant loop, and a battery coolant loop. The refrigerant loop includes a first refrigerant main-line, a second refrigerant main-line, a first refrigerant branch, and a second refrigerant branch. The first refrigerant main-line includes a compressor, the second refrigerant main-line includes a cabin condenser, the first refrigerant branch includes a cabin evaporator, the second refrigerant branch includes a radiator. The first refrigerant main-line and the second refrigerant main-line selectively communicate with one of the first and second refrigerant branches. The battery coolant loop includes a coolant main-line, a first coolant branch connected to the cabin evaporator, a second coolant branch connected to the cabin condenser, and a third coolant branch. The coolant main-line selectively communicates with at least one of the first to third coolant branches. The battery coolant loop connects to the motor coolant loop in series or in parallel.