ELECTRIC VEHICLE

• US 20090242299A1
• Filed: 03/24/2009
• Published: 10/01/2009
• Est. Priority Date: 09/28/2007
• Status: Active Grant

• Current Assignee: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
• Original Assignee: Mitsubishi Jidosha Engineering Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha
• Inventors: Fujita, Kei, Takasaki, Seiichi, Nishino, Haruchika
• Granted Patent: US 8,079,435 B2
• Time in Patent Office: Days
• US Class Current: 180/68.500
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: H01M 50/202 Casings or frames around the primary casing of a single cell or a single battery
• CPC Class Codes: H01M 50/244 Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• CPC Class Codes: H01M 50/249 specially adapted for aircraft or vehicles, e.g. cars or trains constructional details of batteries specially adapted for electric vehicles B60L50/64
• CPC Class Codes: H05K 9/002 with localised screening
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A battery unit is provided under a floor panel. The battery unit is arranged between a pair of right and left side members. The battery unit is provided with a battery case. The battery case includes a tray member and cover member. Electric components are contained in the battery case. Beam members made of metal are attached to the tray member. Both end portions of these beam members are supported by the side members. The tray member includes a resin and insert members made of metal provided inside the resin. The insert members include metal plates arranged on the front side and rear side of the electric components.

Claims

1. An electric vehicle comprising:

a frame structure including a pair of right and left side members made of metal, arranged at a lower part of a vehicle body;

a floor panel made of metal provided on the frame structure;

a battery unit including a battery case arranged between the pair of side members on the undersurface side of the floor panel, the battery case containing therein battery modules and electric components electrically connected to the battery modules, and the upper side of the electric components being electromagnetically shielded by the floor panel;

a front electromagnetic shield portion arranged on the vehicle-front side with respect to the electric components;

a rear electromagnetic shield portion arranged on the vehicle-rear side with respect to the electric components; and

an under electromagnetic shield portion arranged on the undersurface side of the battery case.

2. The electric vehicle according to claim 1, wherein each of the front electromagnetic shield portion and the rear electromagnetic shield portion is constituted of an insert member made of metal embedded in the resin constituting the battery case.

3. The electric vehicle according to claim 1, wherein an under cover for covering the battery case from below is arranged below the battery case, and the under electromagnetic shield portion is constituted of a shield member provided on the under cover.

4. The electric vehicle according to claim 2, wherein an under cover for covering the battery case from below is arranged below the battery case, and the under electromagnetic shield portion is constituted of a shield member provided on the under cover.

5. The electric vehicle according to claim 3, wherein beam members made of metal, extending in the width direction of the vehicle body are provided under the battery case, both end portions of these beam members are supported by the pair of side members, the under electromagnetic shield portion is constituted of these beam members, and portions overlapping the beam members when viewed from above the vehicle body are not provided with the shield member of the under cover.

6. The electric vehicle according to claim 4, wherein beam members made of metal, extending in the width direction of the vehicle body are provided under the battery case, both end portions of these beam members are supported by the pair of side members, the under electromagnetic shield portion is constituted of these beam members, and portions overlapping the beam members when viewed from above the vehicle body are not provided with the shield member of the under cover.