System for preventing condensate formation on a battery

• US 9,337,516 B2
• Filed: 01/20/2014
• Issued: 05/10/2016
• Est. Priority Date: 01/18/2013
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: Klausner, Markus, Berg, Anselm
• Primary Examiner(s): RYAN, PATRICK J
• Assistant Examiner(s): Greso, Aaron
• Application Number:
  US14/158,945
• Publication Number:
  US 20140205873A1
• Time in Patent Office: 841 Days
• US Class Current: 1/1
• 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 10/42 Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells H01M10/60 takes precedence
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• 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: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A system for preventing condensate formation on a battery (1), in particular on a battery (1) that is cooled by means of a cooling device, wherein the battery (1) is surrounded by a housing (6), and wherein the housing (6) has at least one air inlet opening (8) and at least one air outlet opening (9), wherein the at least one air inlet opening (8) is designed such that air supplied to the housing (6) can flow into the housing (6) so as to flow around the battery (1), and wherein the at least one air outlet opening (9) is designed such that air can flow out of the housing (6).

Claims

1. A system for preventing condensate formation on a battery (1), wherein the battery (1) is surrounded by a housing (6), characterized in that the housing (6) has at least one air inlet opening (8) and at least one air outlet opening (9), wherein the at least one air inlet opening (8) is designed such that air supplied to the housing (6) can flow into the housing (6) so as to flow around the battery (1), and wherein the at least one air outlet opening (9) is designed such that air can flow out of the housing (6), wherein the system includes an air supply device (14) having at least one air inlet opening (16, 161, 162) and having at least one air outlet opening (17) which is connected to the at least one air inlet opening (8) of the housing (6), wherein the air supply device (14) is designed to supply air, which flows in via the at least one air inlet opening (16, 161, 162) of the air supply device (14), to the housing (6), such that air supplied to the housing (6) flows into the housing (6) via the at least one air inlet opening (8) of the housing (6), wherein the at least one air inlet opening (16, 161, 162) of the air supply device (14) is configured to be arranged on a vehicle such that air from outside the vehicle (18) can be supplied to the housing (6) via the at least one air inlet opening (16, 161, 162) of the air supply device (14), wherein the system is designed for use with a passenger compartment (7) of the vehicle, wherein the housing (6) is configured to be arranged in the vehicle such that air flowing out of the housing (6) via the at least one air outlet opening (9) emerges outside the passenger compartment (7) of the vehicle, wherein the system includes a controller (20) that controls the air supply device (14), wherein the air supply device (14) includes a mixing flap (22) that is controlled by the controller (20) to control the flow of air into the at least one air inlet opening (8) of the housing (6), wherein the air supply device (14) includes a first channel that receives a first quantity of air from inside of the passenger compartment (7) in the vehicle and directs the first quantity of air to the at least one air inlet opening (8) of the housing (6), and a second channel that receives a second quantity of air from outside of the passenger compartment (7) and directs the second quantity of air to the at least one air inlet opening (8) of the housing (6), and wherein the controller (20) is configured to move the mixing flap (22) to control the flow of air through the first and second channels.

2. The system according to claim 1, characterized in that the air to be supplied to the housing (6) has moisture extracted from it before said air is supplied to the housing (6).

3. The system according to claim 1, characterized in that the supply of air to the housing (6) can be controlled by means of a control device (20).

4. The system according to claim 3, characterized in that the control device (20) is designed to control the supply of air as a function of the air humidity of the air that can be supplied, wherein the air humidity of the air that can be supplied is determined by means of an air humidity determination device (21).

5. The system according to claim 1, characterized by means for increasing the flow speed of the air to be supplied to the housing (6).

6. The system according to claim 1, characterized by means (27) for preventing the ingress of solid matter and/or liquids into the housing (6) via the at least one air outlet opening (9) and/or the at least one air inlet opening (8) of the housing (6).

7. The system according to claim 1, characterized by means (30) for preventing gases released by the battery (1) from escaping from the housing (6) through the at least one air inlet opening (8) of the housing (6) and/or through the at least one air inlet opening (16, 161, 162) of the air supply device (14), wherein the means (30) for preventing gases is selected from a group consisting of a ball valve and a mixing flap.

8. The system according to claim 1, characterized in that the at least one air inlet opening (16, 161, 162) of the air supply device (14) includes an air inlet opening (16, 161, 162) configured to be arranged in the vehicle such that air (19) from the passenger compartment (7) can be supplied to the housing (6) via the air inlet opening (16, 161, 162) by means of the air supply device (14).

9. The system according to claim 1 wherein the battery (1) is cooled by means of a cooling device.

10. The system according to claim 1, characterized in that the air to be supplied to the housing (6) has moisture extracted from it, by means of condensation drying, before said air is supplied to the housing (6).

11. The system according to claim 1, characterized in that the system is designed for use in a a hybrid, plug-in hybrid or electric motor vehicle.

12. A system for preventing condensate formation on a battery (1), wherein the battery (1) is surrounded by a housing (6), characterized in that the housing (6) has at least one air inlet opening (8) and at least one air outlet opening (9), wherein the at least one air inlet opening (8) is designed such that air supplied to the housing (6) can flow into the housing (6) so as to flow around the battery (1), and wherein the at least one air outlet opening (9) is designed such that air can flow out of the housing (6), wherein the system further includes a passenger compartment (7) of a vehicle that houses both the battery (1) and the housing (6), an air supply device (14) coupled to the at least one air inlet opening (8) that directs air into the at least one air inlet opening (8), and a controller (20) that controls the air supply device (14), wherein the air supply device (14) includes a mixing flap (22) that is controlled by the controller (20) to control the flow of air into the at least one air inlet opening (8), wherein the air supply device (14) includes a first channel that receives a first quantity of air from inside of the passenger compartment (7) and directs the first quantity of air to the at least one air inlet opening (8), a second channel that receives a second quantity of air from outside of the passenger compartment (7) and directs the second quantity of air to the at least one air inlet opening (8), and wherein the controller (20) is configured to move the mixing flap (22) to control the flow of air through the first and second channels.