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

• US 10,640,007 B2
• Filed: 05/02/2019
• Issued: 05/05/2020
• Est. Priority Date: 06/11/2013
• Status: Active Grant

• Current Assignee: Panasonic Automotive Systems Company of America (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: Chizuwa, Shuhei
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US16/401,505
• Publication Number:
  US 20190255958A1
• Time in Patent Office: 369 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 first noise filter that is coupled to a connector, said connector being configured to connect a direct-current power source to a battery, wherein the first noise filter reduces noise;

an AC/DC converter that converts alternating-current power supplied from an alternating-current power source to a direct-current power, the AC/DC converter being coupled to the battery; and

a second noise filter that is coupled to the AC/DC converter, the second noise filter being operative to reduce noise.

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

a DC/DC converter that lowers the direct-current power supplied from the battery and supplies the lowered direct-current power to electric components, wherein the DC/DC converter is coupled to the first noise filter.

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

an air-conditioning compressor that uses the direct-current power supplied from the battery to compress a refrigerant for air conditioning, wherein the air-conditioning compressor is coupled to the first noise filter.

4. The charging apparatus according to claim 1,

wherein the second noise filter is disposed on an alternating-current power source side with respect to the AC/DC converter.

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

a relay that is disposed between the first noise filter and the battery, wherein the relay switches on and off current flow.

6. The charging apparatus according to claim 1,

wherein the first noise filter is a Y capacitor.

7. The charging apparatus according to claim 6,

wherein the AC/DC converter includes a transformer.

8. The charging apparatus according to claim 1,

wherein the second noise filter is a Y capacitor.

9. A vehicle comprising:

a battery;

a first noise filter that is coupled to a connector, said connector being configured to connect a direct-current power source to the battery, wherein the first noise filter reduces noise;

an AC/DC converter that converts alternating-current power supplied from an alternating-current power source to a direct-current power, the AC/DC converter being coupled to the battery; and

a second noise filter that is coupled to the AC/DC converter, wherein the second noise filter reduces noise.

10. The vehicle according to claim 9, further comprising:

a DC/DC converter that lowers the direct-current power supplied from the battery and supplies the lowered direct-current power to electric components, wherein the DC/DC converter is coupled to the first noise filter.

11. The vehicle according to claim 9, further comprising:

an air-conditioning compressor that uses the direct-current power supplied from the battery to compress a refrigerant for air conditioning, wherein the air-conditioning compressor is coupled to the first noise filter.

12. A charging apparatus comprising:

a first noise filter that is coupled to a connector, said connector being configured to connect a direct-current power source to a battery, wherein the first noise filter reduces noise; and

a relay that is disposed between the first noise filter and the battery, wherein the relay switches on and off a current flow.