STRUCTURE FOR MOUNTING BATTERIES IN GUIDEWAY ELECTRIC VEHICLE

• US 20090320715A1
• Filed: 04/18/2008
• Published: 12/31/2009
• Est. Priority Date: 07/19/2007
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries Engineering, Ltd. (Mitsubishi Heavy Industries, Ltd.)
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: Hoshi, Mitsuaki, Katahira, Kousuke, Mitake, Masaya, Morita, Katsuaki
• Granted Patent: US 8,511,237 B2
• Time in Patent Office: Days
• US Class Current: 105/51
• 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 2001/005 the electric storage means
• CPC Class Codes: B60K 2001/0438 Arrangement under the floor
• CPC Class Codes: B60K 2001/0472 from below
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 1/02 to electric heating circuits
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2200/30 Trolleys
• CPC Class Codes: B60L 2200/36 Vehicles designed to transport cargo, e.g. trucks
• CPC Class Codes: B60L 2240/34 Cabin temperature
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• 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: B60L 58/26 by cooling
• CPC Class Codes: B60Y 2200/143 Busses
• CPC Class Codes: B60Y 2200/30 Railway vehicles
• CPC Class Codes: B60Y 2200/91 Electric vehicles
• CPC Class Codes: B60Y 2200/912 Electric vehicles with power supply external to vehicle, e.g. trolley buses or trams
• CPC Class Codes: B61C 17/06 : Power storing devices
• CPC Class Codes: B61C 3/02 : with electric accumulators
• CPC Class Codes: H01M 10/613 : Cooling or keeping cold
• CPC Class Codes: H01M 10/625 : Vehicles
• CPC Class Codes: H01M 10/63 : Control systems charging or discharging in response to temperature H01M10/44 , H01M10/443; measurement of temperature H01M10/48 , H01M10/486
• CPC Class Codes: H01M 10/635 : based on ambient temperature
• CPC Class Codes: H01M 10/652 : characterised by gradients for achieving a desired temperature gradient H01M10/617
• CPC Class Codes: H01M 10/6563 : with forced flow, e.g. by blowers
• CPC Class Codes: H01M 10/6566 : Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers H01M10/6565 takes precedence
• CPC Class Codes: H01M 10/658 : by thermal insulation or shielding
• CPC Class Codes: H01M 10/663 : the system being an air-conditioner or an engine
• 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: H01M 50/289 : characterised by spacing elements or positioning means within frames, racks or packs spacing elements inside cells other than separators, membranes or diaphragms H01M50/471
• 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 30/00 : Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor is provided, with which balancing in weight of the vehicle is properly achieved, batteries can be cooled enough, battery rooms are completely sealed from the passenger room, and running stability of the vehicle is ensured.

The battery mounting structure is composed such that battery rooms (35) for mounting battery modules (33) comprised of a plurality of batteries are formed on a floor (9) of the vehicle in both sides adjacent side walls (11) of the vehicle respectively, each of the battery rooms (35) being partitioned from the passenger cabin of the vehicle hermetically by a partition plate (37); suction openings (41) for introducing outside air into the battery room (35) are provided in the floor (9) or side wall (11) of the vehicle in each battery room (35), and exhaust openings (41) for releasing air to the outside of the vehicle are provided in the side wall (11) thereof in each battery room (35); whereby the battery module (33) in each battery room (35) can be cooled by outside air.

Claims

1. Structure for mounting batteries in a guideway electric vehicle which is driven by a battery-driven motor and runs on guideways, wherein battery rooms for mounting battery modules comprised of a plurality of batteries are formed on a floor of the vehicle in both sides adjacent side walls of the vehicle respectively, each of the battery rooms being partitioned from the passenger cabin of the vehicle hermetically by a partition plate;

suction openings for introducing outside air into the battery room are provided in the floor or side wall of the vehicle in each battery room, and exhaust openings for releasing air to the outside of the vehicle are provided in the side wall thereof in each battery room;

whereby the battery module in each battery room can be cooled by outside air.

2. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein each of said battery rooms protrudes from the side wall of the vehicle toward the passenger cabin in a longitudinal central portion of the vehicle.

3. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 2, wherein each of said battery rooms is formed under a passenger seat.

4. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein a battery control device is provided in the battery room to monitor battery temperature, current, voltage in order to control power supply from the battery module when abnormality is detected.

5. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein said suction openings and exhaust openings are formed in the side wall of the vehicle in the battery room.

6. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein said suction openings and exhaust openings are formed in the floor of the vehicle in the battery room.

7. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein heat exchange pipes extending in the battery room and air ducts to supply and return cooled air cooled by an air conditioner for passenger cabin to and from the heat exchange pipes are provided, whereby the cooled air is introduced into the heat exchange pipes to cool air in the battery room.

8. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein a low temperature air generator for producing cold air by receiving pressurized air from a pressurized air source of the vehicle is provided to supply the cold air to the battery room to cool air in the battery room.

9. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 7, wherein a cooling control device is provided to select based on battery temperature, battery room temperature, and outside air temperature whether to adopt cooling of the battery module by introducing outside air from the suction openings and exhausting the air cooled the battery module from the exhaust openings, or cooling of the battery module by allowing air or cooled air in the battery room to circulate in the battery room.

10. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 7, wherein the batteries are arranged vertically in the battery room so that vertical circulation of air occurs in the battery room.

11. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein the vehicle is designed to run on exclusive guideways for the vehicle.

12. Structure for mounting batteries in a guideway electric vehicle driven by a battery-driven motor according to claim 1, wherein the vehicle is designed to run along guide rails provided on general roadways.