Power storage module for railway vehicles

• US 8,810,994 B2
• Filed: 04/14/2011
• Issued: 08/19/2014
• Est. Priority Date: 07/07/2010
• Status: Active Grant

• Current Assignee: CAF Power & Automation, S.L.U.
• Original Assignee: CAF Power & Automation, S.L.U.
• Inventors: Nieva Fatela, Txomin, Onandia Jove, Ion
• Primary Examiner(s): BAUER, SCOTT ALLEN
• Application Number:
  US13/808,212
• Publication Number:
  US 20130107423A1
• Time in Patent Office: 1,223 Days
• Field of Search: 361/434, 361/690
• US Class Current: 361/434
• CPC Class Codes: H01G 11/10 Multiple hybrid or EDL capacitors, e.g. arrays or modules housings, cases, encapsulations or mountings thereof H01G11/78
• CPC Class Codes: H01G 11/30 characterised by their material
• CPC Class Codes: H01G 11/76 specially adapted for integration in multiple or stacked hybrid or EDL capacitors
• CPC Class Codes: H01G 2/08 Cooling arrangements; Heating arrangements; Ventilating arrangements
• CPC Class Codes: H01G 9/008 Terminals
• CPC Class Codes: H01G 9/26 Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

Power storage module for railway vehicles, comprising multiple interconnected capacitors (1) with terminals (2) for establishing an electrical connection with a single connection plate (7) common to all the capacitors (1) and mechanical securing by means of a support plate (6) placed between the terminals (2) and the connection plane (7), the terminals (2) being oversized in such a way as to define a cooling channel between the support plate (6) and the capacitors (1), the connection plate (7) being insulated from said cooling channel by means of the support plate (6).

Claims

1. A power storage module for railway vehicles, comprising multiple interconnected capacitors interconnected by means of bus bars, each capacitor has terminals which are connected to a single connection plate common to all the capacitors to where the electrical signals of the module arrive, and mechanical securing with a support plate placed between the terminals and the connection plate is established by means of the terminals of the capacitors;

and the terminals are oversized in such a way as to define a cooling channel between the support plate and the capacitors, the connection plate being insulated from said cooling channel by means of the support plate.

2. The power storage module for railway vehicles according to claim 1, wherein the oversizing of the terminals is determined by means of a longitudinal elongation of the actual terminals of the capacitors.

3. The power storage module for railway vehicles according to claim 1, wherein the oversizing of the terminals is determined by means of additional parts which are associated with the respective terminals.

4. The power storage module for railway vehicles according to claim 1, wherein the cooling channel has a section of more than 1.5 centimeters, through where a forced air circulation occurs, and wherein said section has considerably the same size as the oversized terminals.

5. The power storage module for railway vehicles according to claim 1, wherein the cooling channel is provided with cooling by means of a coolant.

6. The power storage module for railway vehicles according to claim 1, wherein at the height of the base of the terminals and on the capacitors there is placed a perforated sheet made of insulating material performing the functions of electrical insulation between the adjacent capacitors and providing structural cohesion to the capacitor assembly.

7. The power storage module for railway vehicles according to claim 6, wherein the support plate and the perforated sheet rest on their lateral sides on plates providing stiffness to the assembly and acting as a lateral closure of the cooling channel.

8. The power storage module for railway vehicles according to claim 1, wherein the mechanical securing and the electrical connection are determined by means of a fastening element which is inserted in a hole traversing the connection plate, the support plate, the bus bar and which penetrates the respective terminal.

9. The power storage module for railway vehicles according to claim 1, wherein the mechanical securing is determined by means of a fastening element which is inserted in a hole traversing the support plate, the bus bar and which penetrates the respective terminal, whereas the electrical connection is determined by means of an element which is inserted in a hole traversing the connection plate, the support plate, and the bus bar.

10. The power storage module for railway vehicles according to claim 1, wherein all the capacitors of one and the same module are connected in series, a single electrical input and a single electrical output being determined for the entire module.

11. The power storage module for railway vehicles according to claim 10, wherein the capacitors of one and the same row are connected in a straight line, whereas each row of capacitors is connected with the next row in zigzag.