Replaceable battery assembly having a latching mechanism

• US 9,758,030 B2
• Filed: 07/31/2016
• Issued: 09/12/2017
• Est. Priority Date: 02/09/2016
• Status: Active Grant

• Current Assignee: NIO (Anhui) Holding Co., Ltd.
• Original Assignee: NextEV USA, Inc.
• Inventors: Newman, Austin Lawrence
• Primary Examiner(s): Walters, John
• Assistant Examiner(s): TRIGGS, JAMES J
• Application Number:
  US15/224,660
• Publication Number:
  US 20170225557A1
• Time in Patent Office: 408 Days
• 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: B60K 2001/0472 from below
• 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 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 53/80 Exchanging energy storage elements, e.g. removable batteries
• CPC Class Codes: B60Y 2200/90 Vehicles comprising electric prime movers
• CPC Class Codes: B60Y 2306/01 Reducing damages in case of crash, e.g. by improving battery protection
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/6568 characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
• CPC Class Codes: H01M 2200/00 Safety devices for primary or secondary batteries
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 7/0045 concerning the insertion or the connection of the batteries
• CPC Class Codes: H05K 999/99 dummy group
• 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 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

A removable battery assembly includes a battery pack having a plurality of electrical storage devices; and a latching mechanism for securing the battery pack to a frame structure of a vehicle. The latching mechanism has a first latch part configured to be attached to the frame structure and a second latch part on the battery pack. The second latch part is configured to receive at least a portion of the first latch part. The latching mechanism also has a biasing seal configured to bias the latching mechanism into a latched position.

Claims

1. A removable battery assembly, comprising:

a battery pack including a plurality of electrical storage devices; and

a latching mechanism for securing the battery pack to a frame structure of a vehicle, wherein the latching mechanism includes;

a first latch part configured to be attached to the frame structure;

a second latch part on the battery pack, the second latch part configured to receive at least a portion of the first latch part; and

a biasing seal configured to bias the latching mechanism into a latched position.

2. The removable battery assembly of claim 1, wherein the first latch part is a striker and the second latch part includes a receiving member comprising a slot for receiving the striker.

3. The removable battery assembly of claim 2, wherein the second latch part further includes a latching hook configured to retain the striker.

4. The removable battery assembly of claim 3, wherein the latching mechanism further comprises a control mechanism configured to electronically control the latching hook.

5. The removable battery assembly of claim 3, wherein the biasing seal is configured to bias the latching hook into engagement with the striker in the latching position.

6. The removable battery assembly of claim 1, wherein the biasing seal is an elastic member positioned on a top surface of the battery pack.

7. The removable battery assembly of claim 6, wherein the elastic member extends around a perimeter of the top surface of the battery pack.

8. A vehicle, comprising:

a body forming a passenger compartment;

a chassis supporting the body, the chassis including a frame structure; and

a removable battery assembly comprising;

a battery pack including a plurality of electrical storage devices enclosed in a container; and

a latching mechanism for securing the battery pack to the frame structure, wherein the latching mechanism includes;

a first latch part on the frame structure;

a second latch part on the battery pack, the second latch part configured to connect to the first latch part to attach the battery pack to the frame structure; and

a biasing seal configured to bias the latching mechanism into a latched position.

9. The vehicle of claim 8, wherein the biasing seal is compressed between the battery pack and a surface of the chassis or the body in the latching position.

10. The vehicle of claim 9, wherein the surface is a part of a floor panel separating the passenger compartment from the chassis.

11. The vehicle of claim 9, wherein the surface is a part of a flange connected to the chassis.

12. The vehicle of claim 9, wherein the first latch part is a striker and the second latch part includes a receiving member and a latching hook,

wherein the receiving member includes a slot for receiving the striker and the latching hook is configured to retain the striker.

13. The vehicle of claim 12, wherein the compression of the biasing seal to urge the latching hook into engagement with the striker in the latching position.

14. The vehicle of claim 13, wherein the biasing seal is configured to be further compressed such that the latching mechanism moves to a latch-release position in which the latching hook is out of engagement with the striker.

15. The vehicle of claim 8, wherein the latching mechanism includes a plurality of first latch parts on the frame structure and a plurality of second latch parts on the battery pack.

16. A method of attaching a battery pack to a vehicle, the vehicle comprising a body forming a passenger compartment and a chassis having a frame structure, the method comprising:

placing the battery pack in a bay defined by the frame structure; and

connecting a first latch part on the frame structure to a second latch part on the battery pack such that the battery pack is attached to the frame structure, including;

placing a striker of the first latch part in a receiving member of second latch part;

applying a force to compress a biasing seal between the battery pack and a surface of the chassis or the body;

moving the latching hook into the striker to achieve a latch-release position; and

relieving the force applied to the biasing seal such that the biasing seal urges the latching hook into engagement with the striker to achieve a latched position.

17. The method of claim 16, wherein, in the latch-release position, the latching hook is out of engagement with the striker.

18. The method of claim 16, wherein connecting the first latch part to the second latch part includes lowering the frame structure onto the battery pack, and wherein the weight of the body applies the force to compress the biasing seal.

19. The method of claim 16, wherein connecting the first latch part to the second latch part includes raising the battery pack into the bay, and wherein a jack applies the force to compress the biasing seal.

20. The method of claim 16, further comprising disconnecting the first latch from the second latch to detach the battery pack from the frame structure, including:

reapplying a force to compress the biasing seal and move the latch part to the latch-release position, and

moving the latch part out of the striker.