Protective housing for a galvanic cell in a motor vehicle

• US 8,496,081 B2
• Filed: 03/02/2009
• Issued: 07/30/2013
• Est. Priority Date: 03/18/2008
• Status: Active Grant

• Current Assignee: Dr. Ing. H.C.F. Porsche Ag
• Original Assignee: Dr Ing hc F Porsche AG (Volkswagen AG)
• Inventors: Meier, Steffen, Kohr, Robert
• Primary Examiner(s): Phan, Hau
• Assistant Examiner(s): EVANS, BRYAN A
• Application Number:
  US12/395,898
• Publication Number:
  US 20090236161A1
• Time in Patent Office: 1,611 Days
• Field of Search: 180/68.5, 180/65.1, 180/65.21
• US Class Current: 180/68.5
• 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 2001/0416 Arrangement in the rear part of the vehicle
• CPC Class Codes: B60L 3/0007 Measures or means for preventing or attenuating collisions
• CPC Class Codes: B60L 50/15 with additional electric power supply with capacitors charged by engine-driven generators B60L50/40; with batteries charged by engine-driven generators B60L50/61
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• 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

Abstract

A protective housing (1) for a galvanic cell in a motor vehicle four side walls (2a, 2b, 3a) that form a lateral enclosure for a receptacle space for the galvanic cell. A base and a cover (4) extend across the lateral enclosure of the receptacle space. A cover cross member (8) is attached to the cover (4) and projects out beyond two opposed side walls (2a, 2b) for connection to a shell of the motor vehicle so that the protective housing (1) is suspended in a rotationally fixed fashion in the motor vehicle.

Claims

1. A motor vehicle comprising:

left and right longitudinal members extending in a longitudinal direction of the motor vehicle and spaced from one another in a lateral direction of the motor vehicle to define an installation space therebetween;

a power supply module having a protective housing arranged in the installation space, the protective housing having opposite left and right side walls extending in the longitudinal direction of the motor vehicle and disposed respectively in opposed relationship to the left and right longitudinal members and spaced inwardly from the left and right longitudinal members, opposite front and rear walls extending in the lateral direction of the motor vehicle, the front and rear walls being connected to the opposite left and right side walls to define a side wall enclosure for the protective housing, a cover extending across top ends of the left and right side walls and the front and rear walls, and a base opposite the cover and extending across bottom ends of the left and right side walls and the front and rear walls, a galvanic cell disposed in a receptacle space defined between the front and rear walls, the left and right side walls, the cover and the base; and

a cover cross member having opposite front and rear sectional elements and a plate with opposite front and rear regions nested with the respective front and rear sectional elements, opposite left and right ends of the front and rear sectional elements extending laterally beyond the protective housing and facing opposed inward facing surfaces of the respective left and right longitudinal members, front and rear arrays of attachment members extending through the respective front and rear regions of the plate and through the front and rear sectional elements, the attachment elements being attached to a surface of the cover facing away from the base and at positions inward of the front and rear walls of the protective housing, left and right end regions of the plate of the cover cross member projecting respectively beyond the left and right side walls of the protective housing and being supported on top surfaces of the respective left and right longitudinal members, attachment means at the left and right end regions of the cross member for dismountably securing the left and right end regions of the plate respectively to the left and right longitudinal members of the motor vehicle so that the protective housing with the galvanic cell therein is suspended removably from the cross member and in the installation space and spaced inward of the longitudinal members for protecting the protective housing in a crash.

2. The motor vehicle of claim 1, wherein the respective end regions of the cover cross member are screwed at plural locations to supporting regions of the respective longitudinal members.

3. The motor vehicle of claim 1, wherein the installation space is provided in a rear region of the motor vehicle, and wherein an upper edge of the cover cross member bears approximately in a region of a lower edge of a floor pan of the motor vehicle.

4. The motor vehicle of claim 1, wherein elements for air-conditioning the galvanic cell are provided on at least one of the side walls.

5. The motor vehicle of claim 4, wherein the elements for air conditioning comprise a discharged air collector with a connecting element for carrying away discharged air.

6. The motor vehicle of claim 1, wherein a control unit for electrically monitoring and controlling the galvanic cell is provided in a region of the motor vehicle between the protective housing and one of the longitudinal members and below the plate of the cover cross member.

7. The motor vehicle of claim 6, wherein the cover cross member has a breakthrough spaced inward from the opposite front and rear regions of the cover cross member for accessing the control unit without adversely affecting structural stability of the cover cross member.