Charging device that reduces an amount of noise flowing through a quick charging system in a vehicle

• US 10,065,522 B2
• Filed: 06/10/2014
• Issued: 09/04/2018
• Est. Priority Date: 06/11/2013
• Status: Active Grant

• Current Assignee: PANASONIC AUTOMOTIVE SYSTEMS CO., LTD. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Chizuwa, Shuhei
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US14/897,087
• Publication Number:
  US 20160129795A1
• Time in Patent Office: 1,547 Days
• Field of Search: 320109
• CPC Class Codes: B60L 2270/147 electro magnetic [EMI]
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/14 Conductive energy transfer
• CPC Class Codes: B60L 58/10 for monitoring or controlling batteries
• CPC Class Codes: H02J 2207/20 Charging or discharging characterised by the power electronics converter
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• 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: 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 90/12 Electric charging stations
• CPC Class Codes: Y02T 90/14 Plug-in electric vehicles

Abstract

Provided are a charging device and a vehicle capable of reducing the amount of noise flowing into a quick-charging facility. The pair of charging lines connecting the quick-charging facility (20) to an onboard battery (30) are referred to as quick-charging lines, and each of these quick-charging lines is provided with a relay (16-1, 16-2). Each relay (16-1, 16-2) is used to switch the current flowing in the respective quick-charging line on and off, the current being switched on during quick-charge and being switched off during normal charging. Each quick-charging line has a Y-capacitor (17) connected thereto closer to a QC port (15) than the respective relay (16-1, 16-2).

Claims

1. A charging apparatus comprising:

a quick-charging line for supplying direct-current power supplied from an external direct-current power source to a battery, the quick-charging line having one end being connected to a line between a battery and a component which becomes a noise source when the component operates during quick charging to the battery, and having the other end being connected to an input side of quick charging,

a first noise filter that is disposed on the quick-charging line and eliminates noise,

an AC/DC converter having a transformer, the AC/DC converter converting alternating-current power supplied from an external alternating-current power source to direct-current power and supplying the power to the battery; and

a second noise filter that is disposed on a normal charging line connecting the external alternating-current power source to the AC/DC converter and eliminates noise.

2. The charging apparatus according to claim 1, further comprising:

a relay that is disposed on the quick-charging line and switches on and off a current flowing through the quick-charging line, wherein

the first noise filter is disposed on the input side of quick charging with respect to the relay.

3. The charging apparatus according to claim 1, wherein each of the first noise filter and the second noise filter is a Y capacitor.

4. The charging apparatus according to claim 3, wherein the relay is switched on during quick charging, and is switched off during normal charging.

7. The charging apparatus according to claim 1, wherein the first noise filter eliminates noise from a plurality of components which become a noise source.

8. The charging apparatus according to claim 7, wherein the first noise filter is disposed outside the plurality of components.

5. A vehicle comprising:

a battery; and

a quick-charging line for supplying direct-current power supplied from an outside of a vehicle to the battery, the quick-charging line having one end being connected to a line between a battery and a component which becomes a noise source when the component operates during quick charging to the battery, and having the other end being connected to an input side of quick charging,

a first noise filter that is disposed on the quick-charging line and eliminates noise,

an AC/DC converter having a transformer, the AC/DC converter converting alternating-current power supplied from an external alternating-current power source to direct-current power and supplying the power to the battery; and

a second noise filter that is disposed on a normal charging line connecting the external alternating-current power source to the AC/DC converter and eliminates noise.

6. The vehicle according to claim 5, further comprising:

a relay that is disposed on the quick-charging line and switches on and off a current flowing through the quick-charging line, wherein

the first noise filter is disposed on the input side of quick charging with respect to the relay.