Cooling device for a battery

• US 8,920,957 B2
• Filed: 06/06/2011
• Issued: 12/30/2014
• Est. Priority Date: 06/24/2010
• Status: Active Grant

• Current Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Heim, Udo
• Primary Examiner(s): Ruddock, Ula C.
• Assistant Examiner(s): MARKS, JACOB B
• Application Number:
  US13/153,664
• Publication Number:
  US 20110318628A1
• Time in Patent Office: 1,303 Days
• Field of Search: 429/120
• US Class Current: 429/120
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/615 Heating or keeping warm
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/6551 Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: H01M 10/6563 with forced flow, e.g. by blowers
• CPC Class Codes: H01M 10/6568 characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• CPC Class Codes: H01M 10/663 the system being an air-conditioner or an engine
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A cooling device is provided for a battery (1). The cooling device has a housing (3). To further improve the cooling of batteries, in particular of high-voltage batteries for hybrid vehicles or electric vehicles, the housing (3) has a liquid-cooling arrangement and an air-cooling arrangement. For winter operation, a heating unit is integrated.

Claims

1. A cooling device for a battery comprising a plate-shaped housing with opposite first and second surfaces, an air-cooling layer adjacent the first surface of the housing and including cooling air ducts integrated therein, the air-cooling ducts being in communication with an external source separate from the battery, a liquid-cooling layer adjacent the second surface of the housing and including a liquid-cooling circuit arranged therein, a heating layer between the air-cooling layer and the liquid-cooling layer and including an electric heating unit, and battery cells on the second surface of the housing.

2. The cooling device of claim 1, wherein the cooling device is plate-shaped and the air-cooling arrangement and the liquid-cooling arrangement of the cooling device are formed as layers of the plate-shaped cooling device.

3. The cooling device of claim 2, wherein the electric heating unit comprises at least one heating foil laid on or embedded in the heating layer.

4. A battery having the cooling device of claim 1.

5. A motor vehicle having the battery of claim 4.

6. The cooling device of claim 2, wherein the layer with the air-cooling arrangement is arranged below the layer with the liquid-cooling arrangement.

7. The cooling device of claim 2, wherein the layer with the air-cooling arrangement further comprises cooling ribs.