公开(公告)号：US20140308551A1

公开(公告)日：2014-10-16

申请号：US13862525

申请日：2013-04-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Elizabeth A. Schroeder ,  Chih-Cheng Hsu ,  John T. Guerin

IPC: H01M10/613 ,  H01M10/625

CPC classification number: H01M10/625 ,  B60L1/003 ,  B60L50/64 ,  B60L50/66 ,  B60L58/26 ,  B60L2240/545 ,  H01M2/1077 ,  H01M10/613 ,  H01M10/647 ,  H01M10/6557 ,  H01M10/6563 ,  H01M10/6566 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T90/16

Abstract: An automotive battery module with numerous battery cells and a series-based cooling fin arrangement placed in thermal communication with at least two of the battery cells. Heat generated within the battery cells by, among other things, electric current that can be used to provide motive power for the automobile, may be removed by the cooling fin that includes different portions tailored to remove relatively lesser or greater amounts of heat, depending on a potential temperature difference among the cells. The construction of the cooling fin is such that multiple heat transfer paths are established, each configured to convey heat away from the battery cells, as well as to keep temperature differences between adjacent series-cooled battery cells to a minimum. In one form, the multiple heat transfer paths may include a relatively laminar portion and a relatively turbulent portion, where in one form the increased turbulence may be obtained through numerous turbulators. Other such heat transfer paths may include an intermediate exhaust path, a discreet coolant channel or the like. Any or all of the turbulators, exhaust path or discreet coolant channel may be tuned in order to increase or decrease an amount of heat delivered to the cooling fin from the battery cells.

Abstract translation: 具有许多电池单元和与至少两个电池单元热连通的基于串联的散热片布置的汽车电池模块。 除了别的以外，可以用于为汽车提供动力的电流在电池单元内产生的热可以通过包括不同部分的冷却翅片去除，这些部分被定制以除去相对较小或更大量的热量，取决于 细胞之间的潜在温差。 冷却翅片的结构使得建立多个传热路径，每个热传递路径被配置为将热量从电池单元传送，并将相邻的串联冷却的电池单元之间的温度差保持在最小。 在一种形式中，多个传热路径可以包括相对层流部分和相对湍流部分，其中在一种形式中，可以通过多个紊流器获得增加的湍流。 其他这样的传热路径可以包括中间排气路径，离散的冷却剂通道等。 可以调节任何或所有的紊流器，排气路径或离散的冷却剂通道，以便增加或减少从电池单元传递到冷却翅片的热量。

公开(公告)号：US09673492B2

公开(公告)日：2017-06-06

申请号：US14488995

申请日：2014-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark D. Nemesh ,  John T. Guerin

IPC: H01M10/625 ,  H01M10/6556 ,  H01M10/6565 ,  H01M10/613 ,  H01M10/63 ,  H01M10/6569 ,  H01M10/617

CPC classification number: H01M10/625 ,  H01M10/613 ,  H01M10/617 ,  H01M10/63 ,  H01M10/6556 ,  H01M10/6569 ,  H01M2220/20

Abstract: A thermal management system for a battery pack having a conductive cooling plate and battery cells includes a compressor, flow control valves, temperature sensor(s), and a controller. The compressor circulates refrigerant through the plate to cool the cells. The temperature sensor measures a temperature of the battery pack. The controller is programmed to receive the temperature from the temperature sensors and selectively transmit switching control signals to the valves to command a change in direction or flow of the refrigerant through the cooling plate. This limits a temperature variance between the battery cells over time. A vehicle includes a transmission, an electric traction motor, a battery pack, and the thermal management system noted above. A method includes receiving the temperature, transmitting switching control signals to the valves, and controlling a flow of refrigerant through the plate via the valves in response to the switching control signals.

公开(公告)号：US20160079637A1

公开(公告)日：2016-03-17

申请号：US14488995

申请日：2014-09-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Mark D. Nemesh ,  John T. Guerin

IPC: H01M10/625 ,  H01M10/6556 ,  H01M10/6565 ,  H01M10/613

CPC classification number: H01M10/625 ,  H01M10/613 ,  H01M10/617 ,  H01M10/63 ,  H01M10/6556 ,  H01M10/6569 ,  H01M2220/20

Abstract: A thermal management system for a battery pack having a conductive cooling plate and battery cells includes a compressor, flow control valves, temperature sensor(s), and a controller. The compressor circulates refrigerant through the plate to cool the cells. The temperature sensor measures a temperature of the battery pack. The controller is programmed to receive the temperature from the temperature sensors and selectively transmit switching control signals to the valves to command a change in direction or flow of the refrigerant through the cooling plate. This limits a temperature variance between the battery cells over time. A vehicle includes a transmission, an electric traction motor, a battery pack, and the thermal management system noted above. A method includes receiving the temperature, transmitting switching control signals to the valves, and controlling a flow of refrigerant through the plate via the valves in response to the switching control signals.

Abstract translation: 具有导电冷却板和电池单元的电池组的热管理系统包括压缩机，流量控制阀，温度传感器和控制器。 压缩机将制冷剂循环通过板冷却电池。 温度传感器测量电池组的温度。 控制器被编程为从温度传感器接收温度并且选择性地将切换控制信号传送到阀门以指示制冷剂通过冷却板的方向或流动的变化。 这限制了电池单元之间的温度变化。 车辆包括变速器，电力牵引电动机，电池组和上述热管理系统。 一种方法包括接收温度，向阀发送开关控制信号，以及响应于开关控制信号经由阀控制制冷剂流过板的流量。