Battery charger

• US 9,620,971 B2
• Filed: 09/19/2012
• Issued: 04/11/2017
• Est. Priority Date: 10/07/2011
• Status: Active Grant

• Current Assignee: Nissan Motor Co., Ltd.
• Original Assignee: Nissan Motor Co., Ltd.
• Inventors: Hamada, Mitsuharu, Taima, Tatsuharu, Yanase, Hideyuki, Yano, Yoshiaki
• Primary Examiner(s): Siek, Vuthe
• Assistant Examiner(s): Lin, Aric
• Application Number:
  US14/349,747
• Publication Number:
  US 20140266017A1
• Time in Patent Office: 1,665 Days
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 5/00 Circuit arrangements for transfer of electric power between ac networks and dc networks H02J3/36 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: H02M 7/003 Constructional details, e.g. physical layout, assembly, wiring or busbar connections
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

A battery charger is provided on which power conversion components for converting commercial power to direct current (DC) power are mounted. The power conversion components include a power breaker for switching input alternate current (AC) power on/off, a power conversion circuit for converting the input AC power to a predetermined AC power, a voltage conversion circuit for converting the predetermined AC power to a predetermined voltage, and a rectifier circuit for converting the AC power that has been converted to the predetermined voltage to DC power. The power conversion components are mounted on a core frame, and an outer housing is mounted to the core frame in a manner so as to cover the core frame. The power breaker, the power conversion circuit, the rectifier circuit, and the voltage conversion circuit are mounted in this order to the core frame.

Claims

1. A battery charger on which power conversion components for converting commercial power into direct current power are mounted, comprising:

wherein the power conversion components include a power breaker for switching input alternate current power ON/OFF, a power conversion circuit for converting the input alternate current power into a predetermined alternate current power, a voltage conversion circuit for converting the predetermined alternate current power into a predetermined voltage, a rectifier circuit for converting alternate current power converted into the predetermined voltage, a filter circuit, a smoothing circuit, and a power conversion circuit control circuit;

a core frame on which the power conversion components are mounted, the core frame comprising a core frame body, a through-hole formed in the core frame body having a cable inserted through for connecting the power conversion components; and

an outer housing so attached to the core frame as to cover the core frame, wherein the core frame body is formed of a single plate having a first side and a second side, elongated in a vertical direction, bent in a C-letter shape in horizontal cross-section, and enclosed by the outer housing,

wherein the power breaker, the power conversion circuit, the rectifier circuit, and the voltage conversion circuit are arranged in this order from an upper portion to a lower portion of the core frame body,

wherein the power conversion circuit, the voltage conversion circuit, and the rectifier circuit are mounted on the first side, and

wherein the power breaker, the filter circuit, the smoothing circuit, and the power conversion circuit control circuit are mounted on the second side.