Vehicle power source device wherein cooling air is introduced into battery casing through opening formed through vehicle floor

• US 20010030069A1
• Filed: 04/03/2001
• Published: 10/18/2001
• Est. Priority Date: 04/13/2000
• Status: Active Grant

• Current Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Original Assignee: Toyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
• Inventors: Tanigawa, Yuji, Hatta, Yurio, Misu, Masahiro, Minekawa, Hideto, Shukuya, Keiji
• Granted Patent: US 6,662,891 B2
• Time in Patent Office: Days
• US Class Current: 180/68.1
• 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 6/28 characterised by the electric energy storing means, e.g. batteries or capacitors
• CPC Class Codes: B60K 6/40 characterised by the assembly or relative disposition of components
• CPC Class Codes: B60K 6/405 Housings
• 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 58/21 having the same nominal voltage
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: B60N 2/012 The seat support being a part of the vehicle body or chassis
• CPC Class Codes: B60W 10/30 including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y10S 903/903 having energy storing means, e.g. battery, capacitor
• CPC Class Codes: Y10S 903/907 Electricity storage, e.g. battery, capacitor
• CPC Class Codes: Y10S 903/951 Assembly or relative location of components
• CPC Class Codes: Y10S 903/952 Housing details

Abstract

An electric power source device including a plurality of battery cells accommodated within a battery casing installed on an automotive vehicle, such that the battery cells are cooled air introduced from a compartment of the vehicle into the battery casing, wherein the battery casing is disposed adjacent to the vehicle compartment and is generally isolated from the compartment by a floor or covering member which partially defines the compartment or covers the battery casing, and the floor or covering member has an inlet of an air intake passage, through which the air is introduced into the battery casing, for cooling the battery cells.

Claims

1. An electric power source device including a plurality of battery cells accommodated within a battery casing installed on an automotive vehicle, such that said battery cells are cooled by air introduced from a compartment of the vehicle into said battery casing, wherein an improvement comprises:

said battery casing being disposed adjacent to said compartment of the vehicle and generally isolated from said compartment by a floor which partially defines said compartment; and

said floor having an inlet of an air intake passage through which the air is introduced into said battery casing, for cooling said plurality of battery cells.

4. An electric power source device according to

claim 1

, wherein said inlet is provided under a seat disposed in said compartment of the vehicle.

7. An electric power source device according to

claim 1

, wherein said air intake passage is a generally curved passage including a first straight segment extending substantially downwards from said inlet, a second straight segment extending substantially horizontally, and a curved segment which extends between said first and second straight segments, said generally curved passage being partially defined by a curved shielding plate which is fixed at a position on an inner side of a curve of said generally curved passage.

10. An electric power source device according to

claim 1

, further including a blower fan which constitutes a part of said air intake passage and which is operable to blow the air into said battery casing, and a shielding plate which partially defines said air intake passage such that said air intake passage is generally curved, so as to prevent a flow of the air from said inlet of said air intake passage directly into an inlet of said blower fan.

13. An electric power source device according to

claim 7

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

16. An electric power source device according to

claim 10

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

2. An electric power source device including a plurality of battery cells accommodated within a battery casing installed on an automotive vehicle, such that said battery cells are cooled by air introduced from a compartment of the vehicle into said battery casing through an intake air passage, wherein an improvement comprises:

said battery casing being disposed adjacent to said compartment of the vehicle and generally isolated from said compartment by a covering member which is disposed within a body shell of the vehicle so as to cover said battery casing; and

said covering member having an inlet of said air intake passage through which the air is introduced into said battery casing.

5. An electric power source device according to

claim 2

, wherein said inlet is provided under a seat disposed in said compartment of the vehicle.

8. An electric power source device according to

claim 2

, wherein said air intake passage is a generally curved passage including a first straight segment extending substantially downwards from said inlet, a second straight segment extending substantially horizontally, and a curved segment which extends between said first and second straight segments, said generally curved passage being partially defined by a curved shielding plate which is fixed at a position on an inner side of a curve of said generally curved passage.

11. An electric power source device according to

claim 2

, further including a blower fan which constitutes a part of said air intake passage and which is operable to blow the air into said battery casing, and a shielding plate which partially defines said air intake passage such that said air intake passage is generally curved, so as to prevent a flow of the air from said inlet of said air intake passage directly into an inlet of said blower fan.

14. An electric power source device according to

claim 8

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

17. An electric power source device according to

claim 11

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

3. An electric power source device including a plurality of battery cells accommodated within a battery casing installed on an automotive vehicle, such that said battery cells are cooled by air introduced from a compartment of the vehicle into said battery casing through an intake air passage, wherein an improvement comprises:

said battery casing being accommodated within an interior space whose upper wall is defined by a floor of the vehicle; and

said upper wall having an inlet of an air intake passage through which the air is introduced into said battery casing.

6. An electric power source device according to

claim 3

, wherein said inlet is provided under a seat disposed in said compartment of the vehicle.

9. An electric power source device according to

claim 3

, wherein said air intake passage is a generally curved passage including a first straight segment extending substantially downwards from said inlet, a second straight segment extending substantially horizontally, and a curved segment which extends between said first and second straight segments, said generally curved passage being partially defined by a curved shielding plate which is fixed at a position on an inner side of a curve of said generally curved passage.

12. An electric power source device according to

claim 3

, further including a blower fan which constitutes a part of said air intake passage and which is operable to blow the air into said battery casing, and a shielding plate which partially defines said air intake passage such that said air intake passage is generally curved, so as prevent a flow of the air from said inlet of said air intake passage directly into an inlet of said blower fan.

15. An electric power source device according to

claim 9

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

18. An electric power source device according to

claim 12

, wherein said shielding plate includes a distal end portion which is turned on an inner side of a curve of said air intake passage, said inlet being located on an outer side of said curve.

19. An electric power source device including a battery module disposed under a seat of an automotive vehicle, such that said battery module is cooled by air introduced through an air intake passage, said battery module consisting of a plurality of battery cells superposed on each other in a stack, wherein an improvement comprises:

said seat having a lower surface defining an under-seat space which is held in communication with a compartment of the vehicle; and

said air intake passage having an inlet which is held in communication with said under-seat space, so that the air for cooling said battery module is introduced from said compartment into said air intake passage through said under-seat space and said inlet.

20. An electric power source device including a battery module accommodated within an interior space partially defined by an under-seat covering panel on which a seat of an automotive vehicle is mounted, said battery module being cooled by air introduced through an air intake passage, said battery module consisting of a plurality of battery cells superposed on each other in a stack, wherein an improvement comprises:

said under-seat covering panel cooperating with a lower surface of said seat to define therebetween an under-seat space which extends in a lateral direction of the vehicle and which has an opening in the form of a generally elongate slot, said under-seat space communicating through said opening with a portion of a compartment of the vehicle which portion is located in front of said seat; and

said air intake passage having an inlet in communication with said under-seat space.